CN115815818A - Cylindrical surface marking method, device, electronic equipment and readable storage medium - Google Patents

Abstract

The present application discloses a cylindrical surface marking method, device, electronic equipment and readable storage medium, which are applied in the technical field of laser marking. The cylindrical surface marking method includes: obtaining at least one of the graphics to be marked on the target cylindrical surface Marking point coordinates; according to each described marking point coordinates, determine the corresponding marking point focal length, wherein, the marking point focal length is the distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer Vertical distance: according to the focal length of each of the marking points and the coordinates of each of the marking points, the target galvanometer is controlled to mark the pattern to be marked on the target cylindrical surface. The present application solves the technical problem of low marking accuracy of marking on a cylindrical surface through a 2D vibrating mirror.

Description

Cylindrical surface marking method, device, electronic equipment and readable storage medium

technical field

The present application relates to the technical field of laser marking, and in particular to a cylindrical surface marking method, device, electronic equipment and readable storage medium.

Background technique

With the continuous development of laser marking technology, laser marking is applied in more and more fields, such as laser welding, laser marking, laser cutting and laser treatment, etc. When performing laser marking, in order to ensure marking accuracy , usually a high-speed scanning galvanometer (Galvo scanning system) is used to control the direction of the laser. At present, for laser marking on cylindrical surfaces, 3D galvanometers are generally used for spatial laser marking. However, the cost of 3D galvanometers is relatively expensive, so, The 2D vibrating mirror applied to the plane laser marking is also occasionally used for the marking of the cylindrical surface. However, due to the spatial deformation of the plane figure, there will be a deviation between the processing size and the theoretical size. The marking accuracy of marking on the surface is low.

Contents of the invention

The main purpose of this application is to provide a cylindrical surface marking method, device, electronic equipment and readable storage medium, aiming to solve the low marking precision technology of marking on a cylindrical surface through a 2D vibrating mirror in the prior art question.

In order to achieve the above purpose, the present application provides a cylindrical surface marking method, the cylindrical surface marking method comprising:

Obtain the coordinates of at least one marking point of the graphic to be marked on the target cylindrical surface;

According to the coordinates of each of the marking points, determine the corresponding marking point focal length, wherein the marking point focal length is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer;

According to the focal length of each marking point and the coordinates of each marking point, the target galvanometer is controlled to mark the pattern to be marked on the target cylindrical surface.

Optionally, the step of obtaining the coordinates of the marking points of the graphics to be marked on the target cylindrical surface includes:

Obtain the initial coordinates of the anchor point of the graphic to be marked;

converting the initial coordinates of the positioning point into the coordinates of the marking point, wherein the coordinates of the marking point are used to characterize the spatial position of the marking point of the graphic to be marked on the target cylindrical surface.

Optionally, the step of converting the initial coordinates of the positioning point into the coordinates of the marking point includes:

Acquiring the coordinates of the center point of the cylindrical surface of the target cylinder and the coordinates of the center point of the galvanometer of the target galvanometer;

According to the coordinates of the center point of the cylindrical surface and the coordinates of the center point of the galvanometer, determine the center point distance;

Calculate the coordinates of the marking point according to the center point distance and the initial coordinates of the positioning point.

Optionally, before the step of acquiring the initial coordinates of the anchor point of the graphic to be marked, the cylindrical surface marking method further includes:

Obtaining a graphic to be marked input by a user, wherein the graphic to be marked includes at least one marking simulation point;

In each of the marking simulation points, the simulation coordinates of the simulation positioning points are selected as the starting coordinates of the positioning points.

Optionally, the step of determining the focal length of the corresponding marking point according to the coordinates of each marking point includes:

calculating a focal depth correction parameter of at least one marking point on the cylindrical surface according to the coordinates of each marking point;

According to each of the focal depth correction parameters, the galvanometer focal length of the corresponding marking point is corrected to obtain the focal length of each of the marking points.

Optionally, according to the focal length of each of the marking points and the coordinates of each of the marking points, the step of controlling the target galvanometer to mark the pattern to be marked on the target cylindrical surface includes:

generating at least one positioning control signal according to the coordinates of each marking point and the corresponding focal length of the marking point;

According to each of the positioning control signals and the corresponding marking control signals, the target galvanometer is controlled to mark the pattern to be marked on the target cylindrical surface.

Optionally, the step of controlling the target galvanometer to mark the pattern to be marked on the target cylindrical surface according to each of the positioning control signals and corresponding marking control signals further includes:

Responding to the cylindrical surface marking planning operation on the preset marking interface, acquiring graphic marking path planning information of the graphic to be marked;

According to the graphic marking path planning information, a signal execution strategy is jointly matched for each of the positioning control signals and corresponding positioning control signals;

According to the signal execution strategy, execute each of the positioning control signals and the corresponding marking control signals, so as to mark the pattern to be marked on the target cylindrical surface based on the target vibrating mirror.

In order to achieve the above purpose, the present application also provides a cylindrical surface marking device, which includes:

An acquisition module, configured to acquire the coordinates of at least one marking point of the graphic to be marked on the target cylindrical surface;

A determining module, configured to determine the corresponding marking point focal length according to the coordinates of each marking point, wherein the marking point focal length is the distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer vertical distance;

A control module, configured to control the target galvanometer to mark the pattern to be marked on the target cylindrical surface according to the focal length of each of the marking points and the coordinates of each of the marking points.

Optionally, the acquisition module is also used for:

Obtain the initial coordinates of the anchor point of the graphic to be marked;

converting the initial coordinates of the positioning point into the coordinates of the marking point, wherein the coordinates of the marking point are used to characterize the spatial position of the marking point of the graphic to be marked on the target cylindrical surface.

Optionally, the acquisition module is also used for:

Acquiring the coordinates of the center point of the cylindrical surface of the target cylinder and the coordinates of the center point of the galvanometer of the target galvanometer;

According to the coordinates of the center point of the cylindrical surface and the coordinates of the center point of the galvanometer, determine the center point distance;

Calculate the coordinates of the marking point according to the center point distance and the initial coordinates of the positioning point.

Optionally, the cylindrical surface marking device is also used for:

Obtaining a graphic to be marked input by a user, wherein the graphic to be marked includes at least one marking simulation point;

In each of the marking simulation points, the simulation coordinates of the simulation positioning points are selected as the starting coordinates of the positioning points.

Optionally, the determination module is also used for:

calculating a focal depth correction parameter of at least one marking point on the cylindrical surface according to the coordinates of each marking point;

According to each of the focal depth correction parameters, the galvanometer focal length of the corresponding marking point is corrected to obtain the focal length of each of the marking points.

Optionally, the control module is also used for:

generating at least one positioning control signal according to the coordinates of each marking point and the corresponding focal length of the marking point;

According to each of the positioning control signals and the corresponding marking control signals, the target galvanometer is controlled to mark the pattern to be marked on the target cylindrical surface.

Optionally, the cylindrical surface marking device is also used for:

Responding to the cylindrical surface marking planning operation on the preset marking interface, acquiring graphic marking path planning information of the graphic to be marked;

According to the graphic marking path planning information, a signal execution strategy is jointly matched for each of the positioning control signals and corresponding positioning control signals;

According to the signal execution strategy, execute each of the positioning control signals and the corresponding marking control signals, so as to mark the pattern to be marked on the target cylindrical surface based on the target vibrating mirror.

The present application also provides an electronic device, the electronic device comprising: a memory, a processor, and a program of the cylindrical surface marking method stored on the memory and operable on the processor, the cylindrical surface When the program of the marking method is executed by the processor, the steps of the above cylindrical surface marking method can be realized.

The present application also provides a computer-readable storage medium, the computer-readable storage medium stores a program for realizing the marking method on a cylindrical surface, and when the program of the marking method on a cylindrical surface is executed by a processor, the above-mentioned cylinder is realized. The steps of the face marking method.

The present application also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned method for marking a cylindrical surface are realized.

The present application provides a cylindrical surface marking method, device, electronic equipment and readable storage medium, that is, to obtain the coordinates of at least one marking point of the figure to be marked on the target cylindrical surface; according to each of the marking points Coordinates determine the corresponding marking point focal length, wherein the marking point focal length is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer; according to each of the marking point focal lengths and the coordinates of each marking point, controlling the target galvanometer to mark the pattern to be marked on the target cylindrical surface. Since the coordinates of the marking point are the coordinates of the graphic to be marked on the cylindrical surface, and the focal length of the marking point is the distance between the marking point on the cylindrical surface and the target galvanometer, the coordinates of the marking point and the focal length of the marking point It can fully reflect the actual position of the marking point on the cylindrical surface, that is, to achieve the purpose of accurately locating the marking point on the cylindrical surface, instead of relying on the The actual position of the marking point on the plane overcomes the technical defect of the deviation between the processing size and the theoretical size due to the spatial deformation of the plane figure. Therefore, the marking on the cylindrical surface through the 2D vibrating mirror is improved. marking accuracy.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.

Fig. 1 is a schematic flow chart of the first embodiment of the cylindrical surface marking method of the present application;

Fig. 2 is the schematic plan view of marking the graphics to be marked by the cylindrical surface marking method of the present application;

Fig. 3 is a schematic flow chart of the second embodiment of the cylindrical surface marking method of the present application;

Fig. 4 is the schematic diagram of the embodiment of cylindrical surface marking device of the present application;

FIG. 5 is a schematic diagram of the equipment structure of the hardware operating environment involved in the cylindrical surface marking method in the embodiment of the present application.

The realization of the purpose, functions and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Embodiment one

First of all, it should be understood that laser has the advantages of high energy density, directional light emission and high collimation, and then by using laser to irradiate the processed surface locally, physical changes or chemical changes will occur on the processed surface, and finally leave a permanent surface on the surface. Among them, 3D galvanometers are usually used for spatial graphic marking, such as arc surface laser marking, and 2D galvanometers are usually used for plane graphic marking. However, limited by the cost considerations of 3D galvanometers, some spatial graphics However, due to the deformation of the plane figure in space, there is often a large error between the processing size and the theoretical size. If a square is marked on the arc surface of the square, the shape obtained by marking according to the existing scheme is roughly a rectangle, and because the focal depths of different contour points of the square are different, it is difficult for the final figure to meet the marking needs of the user. Therefore, the current method of marking the marking accuracy on the cylindrical surface through the 2D vibrating mirror.

The embodiment of the present application provides a cylindrical surface marking method. In the first embodiment of the cylindrical surface marking method of the present application, referring to FIG. 1, the cylindrical surface marking method includes:

Step S10, obtaining the coordinates of at least one marking point of the figure to be marked on the target cylindrical surface;

Step S20, according to the coordinates of each of the marking points, determine the corresponding marking point focal length, wherein the marking point focal length is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer distance;

In this embodiment, it should be noted that the graphic to be marked is used to represent the graphic waiting to be marked, and the graphic to be marked is marked on the target cylindrical surface, and the target cylindrical surface is selected by the user. Mark the cylindrical surface of the graphic to be marked, there is a position on the target cylindrical surface that has not been marked, the target cylindrical surface may have a marked graphic, or there may be no marked graphic, the cylindrical surface The marking method is applied to the laser marking system, and the movement components of the cylindrical surface marking are controlled to move through the input/output signals of the laser marking system to mark the graphics to be marked. The cylindrical surface marking system is set on the smart device , the smart device can be a computer or a personal PC, etc., and the cylindrical surface marking system can be provided with a graphics drawing module, or not provided with a graphics drawing software, for example, assuming that the cylindrical surface marking system is provided with a graphics As for the drawing module, the smart device is a computer, then when the computer enters the cylindrical surface marking system, it can automatically or based on the user's manual operation obtain the graphics to be marked from the graphics drawing software installed on the computer.

In addition, it should be noted that the process of marking the cylindrical surface by the cylindrical surface marking system can be understood as: the cylindrical surface marking system controls the 2D vibrating mirror to perform patrolling marking at a specified position in space through the input/output signal, Until the marking of the graphic to be marked is completed, the input/output signal can be a signal used to mark a certain designated marking point that constitutes the graphic to be marked, or it can be a signal used to mark a representative graphic to be marked The signal of a specified marking area, for example, in an implementable manner, the cross-sectional direction of the cylindrical surface can be set as the X-axis direction, the height direction of the cylindrical surface is the Y-axis direction, and the center point of the 2D vibrating mirror The direction perpendicular to the cylindrical surface is the Z direction, and the input/output signals are used to control the movement of the 2D galvanometer along the X, Y and Z axes to reach the specified position in space.

In addition, it should be noted that the coordinates of the marking point are used to characterize the spatial position of the marking point of the graphic to be marked on the target cylindrical surface, wherein the spatial position can be determined by the preset spatial coordinates The marking pattern obtained by marking the pattern to be marked on the target cylindrical surface is composed of multiple marking points. Due to the different marking focal depths, the same marking pattern can have different presentations, that is, When marking the graphics to be marked, it is necessary to determine the spatial position of each point. For example, in the three-dimensional coordinate system, it is necessary to determine the horizontal size of the graphics to be marked by the cross-sectional direction of the cylindrical surface, and to determine the horizontal size of the graphics to be marked by the height direction of the cylindrical surface. The vertical dimension of the engraved graphics is determined by the depth direction between the cylindrical surface and the 2D galvanometer to determine the focal depth of the graphics to be marked.

In addition, it should be noted that the focal length of the marking point is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer. When the focal length of the marking point is smaller, the marking focal length The larger the depth, the smaller the focal depth of the marking point when the focal length of the marking point is greater. For example, suppose the user wants to mark a square with the same focal depth of each point on the cylindrical surface, because the graphics fit the cylindrical surface completely. , and furthermore, in addition to the size correction, the focal length of the marking point corresponding to each marking point also needs to be corrected. Therefore, the coordinates of the marking point and the focal length of the marking point can be solved through the expansion diagram of the cylindrical surface. For example, referring to Figure 2, Fig. 2 is a schematic plan view showing marking graphics to be marked, wherein, the preset space coordinate system is that the cross-sectional direction of the target cylindrical surface is the X-axis direction, the height direction of the target cylindrical surface is the Y-axis direction, and the 2D vibrating mirror The direction of the center point perpendicular to the target cylindrical surface is a three-dimensional coordinate system in the Z direction, the origin of the three-dimensional coordinate system is the initial marking point of the target vibrating mirror, and its coordinate value is (0,0,0), 100 is the top view of the target cylindrical surface, 200 is the plan view of the target galvanometer, 300 is the coordinates of the marking point, 400 is the starting coordinate, 600 is the cross-sectional radius R of the target cylindrical surface, and 500 is the diameter of the target galvanometer. The distance between the center point and the center point of the target cylindrical surface, a is the angle between the marking point 300 and the target cylindrical surface section radius 600, b is the angle between the starting point 400 and the target cylindrical surface section radius 600, and then Any marking point can be set as (xi _, y _i , zi ₎ , wherein, i can be a natural number, and i corresponds to the marking point one by one, for example, i=1 represents the first marking point, i=2 To characterize the second marking point, the vertical distance from the starting point 400 to the center line of the target galvanometer is the horizontal distance. When the 2D galvanometer is at the same height and moves around the cylindrical surface, it can be determined that the 2D galvanometer is moving around the X-axis. When the 2D When the vibrating mirror moves in the height direction of the cylindrical surface, it can be considered that the 2D vibrating mirror is moving around the Y axis.

As an example, steps S10 to S20 include: obtaining the marking point coordinates of at least one marking point of the figure to be marked on the target cylindrical surface under the preset space coordinate system; according to each of the marking point coordinates, Determine the corresponding marking point focal length, wherein the marking point focal length is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer.

Wherein, the step of obtaining the marking point coordinates of the graphics to be marked on the target cylindrical surface comprises:

Step A10, obtaining the initial coordinates of the positioning point of the graphic to be marked;

Step A20, converting the initial coordinates of the positioning point into coordinates of the marking point, wherein the coordinates of the marking point are used to represent the spatial position of the marking point of the graphic to be marked on the target cylindrical surface.

In this embodiment, it should be noted that after determining the initial marking point of the graphics to be marked, any marking point on the target cylindrical surface can be used as the positioning point, and then by converting the graphics to be marked The coordinate values of the expansion diagram of the marking point on the target cylinder surface and the coordinate values of the plane view of the graphics to be marked, so that the graphics to be marked on the target cylinder surface are completely consistent with the plane diagram of the graphics to be marked. The initial coordinates of the positioning point are the initial coordinate values of the positioning point in the plane coordinate system. The initial coordinates of the positioning point can be obtained by the cylindrical surface marking system based on the graphics drawing software outside the system, or by the cylindrical surface marking system based on the built-in graphics drawing software set up.

As an example, steps A10 to A20 include: selecting an anchor point on the graphic to be marked, and extracting the initial coordinates of the anchor point of the anchor point; converting the initial coordinates of the anchor point into coordinates of the marking point, Wherein, the coordinates of the marking point are used to characterize the spatial position of the marking point of the graphic to be marked on the target cylindrical surface.

Wherein, the step of converting the initial coordinates of the positioning point into the coordinates of the marking point includes:

Step B10, obtaining the coordinates of the center point of the cylindrical surface of the target cylinder and the coordinates of the center point of the galvanometer of the target galvanometer;

Step B20, according to the coordinates of the center point of the cylindrical surface and the coordinates of the center point of the galvanometer, determine the center point distance;

Step B30, calculating the coordinates of the marking point according to the distance from the center point and the initial coordinates of the positioning point.

In this embodiment, it should be noted that since there is an association between the expanded view of the cylindrical surface and the planar view of the cylindrical surface, the key points corresponding to the 2D galvanometer in the preset space coordinate system and the corresponding key points on the target cylindrical surface can be The key point is to realize the conversion of the initial coordinates of the anchor point of the anchor point of the graphic to be marked into the coordinate of the marked point. Among them, due to the spatial characteristics of the cylindrical surface, the vertical coordinate of the marked point of the graphic to be marked on the plan and its position on the cylinder The vertical coordinates on the expansion diagram of the surface are consistent, and then when the initial coordinates of the positioning points of the graphics to be marked are converted, the vertical coordinates of the positioning points remain unchanged, that is, on the target cylindrical surface parallel to the direction of the generatrix of the target cylindrical surface When marking the marking point, only the abscissa of the marking point is corrected, so that the graphics to be marked according to the corrected coordinates can meet the needs of users.

In addition, it should be noted that the coordinates of the center point of the cylindrical surface are used to represent the coordinate value of the center point of the cylindrical surface in the preset plane coordinate system, and the coordinates of the center point of the vibrating mirror are used to represent the coordinate value of the vibrating mirror in the preset plane coordinate system. The coordinate value of the center point, the center point distance is used to characterize the spatial distance between the center point of the cylindrical surface and the center point of the vibrating mirror under the preset plane coordinate system, by combining the center point of the cylindrical surface and the center of the vibrating mirror The distance between the point and the center point is input to the preset coordinate transformation model, and the coordinate transformation of each marking point of the graphic to be marked can be carried out. For example, in an implementable manner, it is assumed that the coordinates of the center point of the cylindrical surface are (x _m , y _m ), the coordinates of the center point of the vibrating mirror are (x _n , y _n ), then the distance between the center point is

As an example, step B10 to step B30 include: obtaining the first coordinate value of the center point of the cylindrical surface of the target cylindrical surface and the second coordinate value of the center point of the galvanometer of the target galvanometer in a preset space coordinate system value; calculate the center point distance through the first coordinate value and the second coordinate value; input the center point distance and the initial coordinates of the positioning point into the preset coordinate conversion model to obtain the marking point coordinates, wherein the preset coordinate transformation model is provided with a coordinate transformation formula, and the coordinate transformation formula is as follows:

y ₂ =y ₁

Among them, (x ₁ , y ₁ ) is the initial coordinates of the positioning point, (x ₂ , y ₂ ) is the coordinates of the marking point, L is the distance from the center point, and R is the section radius of the target cylindrical surface .

Wherein, before the step of obtaining the initial coordinates of the anchor point of the graphic to be marked, the cylindrical surface marking method further includes:

Step C10, obtaining the figure to be marked input by the user, wherein the figure to be marked includes at least one marking simulation point;

Step C20, selecting the simulated coordinates of the simulated positioning point from each of the marking simulation points as the initial coordinates of the positioning point.

In this embodiment, it should be noted that the marking simulation points are used to represent the points on the simulation graphics that simulate the graphics to be marked on the graphics drawing software, and the selected simulation positioning points are used to represent the points that make up the simulation graphics. Any marking simulation point, the simulation coordinates of the positioning point is the coordinate value of the simulation positioning point, when a certain simulation positioning point is selected, this point can be used as the marking positioning point, for example, in a practicable In the method, it is assumed that the coordinate system of the cylindrical surface is established with the cross-sectional direction of the cylindrical surface as the X axis and the height direction as the Y axis, wherein the Y axis direction is parallel to the Y direction of the target galvanometer. When a certain point is selected as (x ₀ , y ₀ ), then (x ₀ ,y ₀ ) can be used as the initial coordinates of the anchor point.

As an example, steps C10 to C20 include: obtaining the graphics to be marked input by the user on the preset marking interface, wherein the preset marking interface is set on the smart device, and the user can Draw the graphics to be marked in real time on the engraving interface, or trigger the acquisition of existing graphics to be marked by dragging or pressing buttons on the preset marking interface, and the graphics to be marked include at least one marking simulation point; In each of the marking simulation points, the coordinate value of the simulation positioning point is selected as the starting coordinate of the positioning point.

Wherein, the step of determining the focal length of the corresponding marking point according to the coordinates of each marking point includes:

Step D10, calculating the focal depth correction parameter of at least one marking point on the cylindrical surface according to the coordinates of each marking point;

Step D20 , correcting the galvanometer focal length of the corresponding marking point according to each of the focal depth correction parameters to obtain the focal length of each of the marking points.

In this embodiment, it should be noted that after the coordinate conversion of the marking points on the graphics to be marked is carried out through the preset coordinate transformation model, the laser emitted by the target galvanometer can accurately reach the marking points required by the user, but , because the different focal lengths of the target galvanometer will lead to different focal depths, and in order to ensure the marking accuracy, the focal depths of different marking points need to be corrected, so the focal depth correction parameters are used to correct the focal depth, when the galvanometer The smaller the focal length is, the smaller the marking pattern is, and the larger the focal length is, the larger the marking pattern is. The correction of the plane of the 2D galvanometer and the Z-axis in the space coordinate system is indispensable.

和

若Z_i＞0(第i个标刻点的Z轴位置小于中心焦距)，则将Z₀按长度n等分，以确定Z_i的位置宽度，若m＜Z_i＜m+1，则通过插值法确定Z_i的位置宽度，其中，0＜m＜n-1，m的实际宽度值为

m+1的实际宽度值为

进而根据Z_i与H₀的宽度值比为fsx和fsy，也即，焦深校正参数计算公式如下：In addition, it should be noted that the effective Z-axis value range of the figure to be marked on the target cylindrical surface is ±z ₀ , taking the Z-axis coordinate of the center point as a reference, the focal length of the center point is H ₀ , and the measurement to be marked The size of the graph is

and

If Z _i >0 (the Z-axis position of the i-th marking point is smaller than the central focal length), divide Z ₀ equally by length n to determine the position width of Z _i , if m<Z _i <m+1, then Determine the position width of Z _i by interpolation method, where, 0<m<n-1, the actual width of m is

The actual width of m+1 is

Furthermore, according to the width value ratio of Z _i and H ₀ , fsx and fsy, that is, the calculation formula of the focal depth correction parameter is as follows:

, and finally obtain the corrected marking point coordinates (x′, y′), wherein, x′=x _i *fsx, y′=y _i *fsy.

As an example, steps D10 to D20 include: determining the Z-axis width value corresponding to each of the marking points according to the correspondence between the coordinates of each of the marking points and the effective Z-axis value range, according to each Z axis width value, calculate the focal depth correction parameter of at least one marking point on the cylindrical surface; according to each of the focal depth correction parameters, correct the galvanometer focal length of the corresponding marking point, and obtain the focal length of each of the marking points .

Step S30, according to the focal length of each of the marking points and the coordinates of each of the marking points, controlling the target galvanometer to mark the pattern to be marked on the target cylindrical surface.

As an example, step S30 includes: according to at least one control signal corresponding to the focal length of each of the marking points and the coordinates of each of the marking points, sequentially controlling the target galvanometer to mark each of the marking points, so as to The pattern to be marked is marked on the target cylindrical surface, wherein the control signal is used to control the target galvanometer to move to a spatial position corresponding to the marking point and perform marking.

Wherein, the step of controlling the target galvanometer to mark the graphic to be marked on the target cylindrical surface according to the focal length of each of the marking points and the coordinates of each of the marking points includes:

Step E10, generating at least one positioning control signal according to the coordinates of each marking point and the corresponding focal length of the marking point;

Step E20, controlling the target vibrating mirror to mark the pattern to be marked on the target cylindrical surface according to each of the positioning control signals and corresponding marking control signals.

In this embodiment, it should be noted that, due to subjective and objective factors in the marking process, there may be situations where the graphics to be marked need to be changed, and the focal length of each marking point and each marking point of the graphics to be marked can be corrected. Generate a positioning control signal when coordinates, wherein the positioning control signal is used to position the target vibrating mirror at a spatial position corresponding to the marking point, and the marking control signal is used to control the target vibrating mirror to mark, The marking control signal can be triggered by the marking control operation performed by the user on the cylindrical marking system, that is, the marking is not automatically performed after correction, but is marked according to the marking control operation of the user, so , which improves the flexibility of marking while ensuring the marking accuracy.

As an example, steps E10 to E20 include: converting the coordinates of each marking point and the corresponding focal length of the marking point into a corresponding positioning control signal according to a preset signal conversion format, wherein the preset signal conversion method can be based on The user needs to set by himself; in response to the user's marking control operation, the marking control signal corresponding to each of the positioning control signals is obtained, and each of the marking control signals is executed in sequence, so as to base the target vibrating mirror on the target The marking graphics are marked on the target cylindrical surface.

The embodiment of the present application provides a method for marking a cylindrical surface, that is, obtaining at least one marking point coordinate of the figure to be marked on the target cylindrical surface; determining the corresponding marking point according to the coordinates of each marking point Focal length, wherein, the focal length of the marking point is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer; according to the focal length of each of the marking points and the coordinates of each of the marking points , controlling the target galvanometer to mark the pattern to be marked on the target cylindrical surface. Since the coordinates of the marking point are the coordinates of the graphic to be marked on the cylindrical surface, and the focal length of the marking point is the distance between the marking point on the cylindrical surface and the target galvanometer, the coordinates of the marking point and the focal length of the marking point It can fully reflect the actual position of the marking point on the cylindrical surface, that is, to achieve the purpose of accurately locating the marking point on the cylindrical surface, instead of relying on the The actual position of the marking point on the plane overcomes the technical defect of the deviation between the processing size and the theoretical size due to the spatial deformation of the plane figure. Therefore, the marking on the cylindrical surface through the 2D vibrating mirror is improved. marking accuracy.

Embodiment two

Further, referring to FIG. 3 , in another embodiment of the present application, for the content that is the same as or similar to the first embodiment above, reference may be made to the introduction above, and details will not be repeated hereafter. On this basis, the step of controlling the target galvanometer to mark the pattern to be marked on the target cylindrical surface according to each of the positioning control signals and the corresponding marking control signals further includes:

Step F10, in response to the cylindrical surface marking planning operation on the preset marking interface, acquiring graphic marking path planning information of the graphic to be marked;

Step F20, according to the graphic marking path planning information, for each of the positioning control signals and the corresponding positioning control signals to jointly match the signal execution strategy;

Step F30 , executing each of the positioning control signals and corresponding marking control signals according to the signal execution strategy, so as to mark the pattern to be marked on the target cylindrical surface based on the target vibrating mirror.

In this embodiment, it should be noted that for different graphics to be marked, the presentation of the visualization effect is different, and by freely setting the graphic marking path planning information, the user can avoid marking risks in time during the marking process , for example, assuming that the graphic to be marked is marked with the marking path 1, the user needs to mark the graphic to be marked to 3/4 to detect whether there is a marking abnormality, and mark with the marking path 2 , the user only needs to detect whether there is a marking abnormality when the figure to be marked is marked to 1/4, and then adopting marking path 2 can avoid the time cost and consumables consumed in the marking process due to unqualified marking cost, so the graphic marking path planning information is used to plan the marking path for the graphic to be marked, for example, assuming that the graphic to be marked is a rectangle, and the four corners are A1, A2, A3 and A4 respectively, then the graphic marking The marking path may be A2→A4→A3→A1, and the signal execution strategy is used to plan the execution sequence of the graphic marking path planning information signal adapted to the graphic to be marked.

As an example, step F10 to step F30 include: in response to the cylindrical surface marking planning operation on the preset marking interface, acquiring the graphic marking path planning information of the graphic to be marked, wherein the cylindrical surface marking The marking planning operation can be triggered by voice or key operation input by the user on the preset marking interface; according to the graphic marking path planning information, a signal execution strategy is jointly matched for each positioning control signal and the corresponding positioning control signal; according to The signal execution strategy is to execute each of the positioning control signals and corresponding marking control signals, so as to mark the pattern to be marked on the target cylindrical surface based on the target vibrating mirror.

The embodiment of the present application provides a galvanometer marking control method, that is, in response to the cylindrical surface marking planning operation on the preset marking interface, the graphic marking path planning information of the graphic to be marked is obtained; according to The graphic marking path planning information is a signal execution strategy for each of the positioning control signals and the corresponding positioning control signal; according to the signal execution strategy, execute each of the positioning control signals and the corresponding marking control signal, The pattern to be marked is marked on the target cylindrical surface based on the target galvanometer. Compared with marking the graphic to be marked according to the default marking path, the embodiment of the present application adapts the graphic marking path for the graphic to be marked based on the graphic marking path planning information, and then corresponds to the graphic marking path according to the The signal execution strategy of the target galvanometer is used to mark the graphics to be marked on the target cylindrical surface, so that the purpose of setting different graphics marking paths for different graphics to be marked can be achieved. Due to different graphics to be marked, The presentation of its visualization effect is different, and the marking risk in the marking process can be avoided by setting the graphic planning path in a targeted manner. Therefore, it lays the foundation for improving the marking accuracy of marking on the cylindrical surface through the 2D galvanometer.

Embodiment three

The embodiment of the present application also provides a cylindrical surface marking device. Referring to FIG. 4, the cylindrical surface marking device includes:

An acquisition module 101, configured to acquire at least one marking point coordinate of the figure to be marked on the target cylindrical surface;

The decryption module 102 is configured to determine the corresponding marking point focal length according to the coordinates of each marking point, wherein the marking point focal length is between the marking point on the target cylindrical surface and the focal point of the target galvanometer the vertical distance;

The determining module 103 is configured to control the target galvanometer to mark the pattern to be marked on the target cylindrical surface according to the focal length of each of the marking points and the coordinates of each of the marking points.

Optionally, the obtaining module 101 is also used for:

Obtain the initial coordinates of the anchor point of the graphic to be marked;

converting the initial coordinates of the positioning point into the coordinates of the marking point, wherein the coordinates of the marking point are used to characterize the spatial position of the marking point of the graphic to be marked on the target cylindrical surface.

Optionally, the obtaining module 101 is also used for:

Acquiring the coordinates of the center point of the cylindrical surface of the target cylinder and the coordinates of the center point of the galvanometer of the target galvanometer;

According to the coordinates of the center point of the cylindrical surface and the coordinates of the center point of the galvanometer, determine the center point distance;

Calculate the coordinates of the marking point according to the center point distance and the initial coordinates of the positioning point.

Optionally, the cylindrical surface marking device is also used for:

Obtaining a graphic to be marked input by a user, wherein the graphic to be marked includes at least one marking simulation point;

In each of the marking simulation points, the simulation coordinates of the simulation positioning points are selected as the starting coordinates of the positioning points.

Optionally, the determination module 102 is also used for:

calculating a focal depth correction parameter of at least one marking point on the cylindrical surface according to the coordinates of each marking point;

According to each of the focal depth correction parameters, the galvanometer focal length of the corresponding marking point is corrected to obtain the focal length of each of the marking points.

Optionally, the control module 101 is also used for:

generating at least one positioning control signal according to the coordinates of each marking point and the corresponding focal length of the marking point;

According to each of the positioning control signals and the corresponding marking control signals, the target galvanometer is controlled to mark the pattern to be marked on the target cylindrical surface.

Optionally, the control module 101 is also used for:

Responding to the cylindrical surface marking planning operation on the preset marking interface, acquiring graphic marking path planning information of the graphic to be marked;

According to the graphic marking path planning information, a signal execution strategy is jointly matched for each of the positioning control signals and corresponding positioning control signals;

According to the signal execution strategy, execute each of the positioning control signals and the corresponding marking control signals, so as to mark the pattern to be marked on the target cylindrical surface based on the target vibrating mirror.

The cylindrical surface marking device provided by the present invention adopts the cylindrical surface marking method in the above embodiment, and solves the technical problem of low marking accuracy of marking on the cylindrical surface through the 2D vibrating mirror. Compared with the prior art, the beneficial effect of the cylindrical marking device provided by the embodiment of the present invention is the same as that of the cylindrical marking method provided by the above embodiment, and other technical features of the cylindrical marking device are the same as The features disclosed by the methods in the above embodiments are the same, and will not be repeated here.

Embodiment Four

An embodiment of the present invention provides an electronic device. The electronic device includes: at least one processor; and a memory connected to the at least one processor in communication; wherein, the memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor. The processor executes, so that at least one processor can execute the cylindrical surface marking method in the first embodiment above.

Referring now to FIG. 5 , it shows a schematic structural diagram of an electronic device suitable for implementing an embodiment of the present disclosure. The electronic equipment in the embodiment of the present disclosure may include but not limited to such as mobile phone, notebook computer, digital broadcast receiver, PDA (personal digital assistant), PAD (tablet computer), PMP (portable multimedia player), vehicle terminal (such as mobile terminals such as car navigation terminals) and fixed terminals such as digital TVs, desktop computers and the like. The electronic device shown in FIG. 5 is only an example, and should not limit the functions and scope of use of the embodiments of the present disclosure.

As shown in FIG. 5 , the electronic device may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which may be loaded into a random access memory according to a program stored in a read-only memory (ROM) 1002 or from a storage device 1003. (RAM) 1004 to execute various appropriate actions and processing. In RAM 1004, various programs and data necessary for the operation of the electronic device are also stored. The processing device 1001 , ROM 1002 , and RAM 1004 are connected to each other via a bus 1005 . An input/output (I/O) interface 1006 is also connected to the bus.

In general, the following systems can be connected to the I/O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; including, for example, a liquid crystal display (LCD), speakers, an output device 1008 of a vibrator or the like; a storage device 1003 including, for example, a magnetic tape, a hard disk, or the like; and a communication device 1009 . A communication device may allow an electronic device to communicate with other devices wirelessly or by wire to exchange data. While an electronic device is shown with various systems in the figures, it should be understood that implementing or having all of the systems shown is not a requirement. More or fewer systems may alternatively be implemented or provided.

In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product, which includes a computer program carried on a computer-readable medium, where the computer program includes program codes for executing the methods shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from the network via the communication means 1009, or from the storage means 1003, or from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the methods of the embodiments of the present disclosure are executed.

The electronic equipment provided by the present invention adopts the cylindrical surface marking method in the above-mentioned embodiments, and solves the technical problem of low marking accuracy of marking on the cylindrical surface through the 2D vibrating mirror. Compared with the prior art, the beneficial effect of the electronic device provided by the embodiment of the present invention is the same as that of the cylinder marking method provided by the above embodiment, and other technical features of the electronic device are the same as those disclosed by the method of the above embodiment The features are the same, and will not be repeated here.

It should be understood that various parts of the present disclosure may be implemented in hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in an appropriate manner.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Embodiment five

This embodiment provides a computer-readable storage medium, which has computer-readable program instructions stored thereon, and the computer-readable program instructions are used to execute the cylindrical surface marking method in the above-mentioned embodiments.

The computer-readable storage medium provided by the embodiments of the present invention may be, for example, a USB flash drive, but is not limited to an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, system, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more wires, portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable Programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in combination with an instruction execution system, system or device. Program code embodied on a computer readable storage medium may be transmitted by any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

The above-mentioned computer-readable storage medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

The above-mentioned computer-readable storage medium carries one or more programs, and when the above-mentioned one or more programs are executed by the electronic device, the electronic device: acquires at least one marking point coordinate of the graphic to be marked on the target cylindrical surface; according to Each of the marking point coordinates determines the corresponding marking point focal length, wherein the marking point focal length is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer; according to each The focal length of the marking point and the coordinates of each marking point control the target galvanometer to mark the pattern to be marked on the target cylindrical surface.

Computer program code for carrying out the operations of the present disclosure can be written in one or more programming languages, or combinations thereof, including object-oriented programming languages—such as Java, Smalltalk, C++, and conventional Procedural Programming Language - such as "C" or a similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In cases involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as through an Internet service provider). Internet connection).

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or portion of code that contains one or more logical functions for implementing specified executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified functions or operations , or may be implemented by a combination of dedicated hardware and computer instructions.

The modules involved in the embodiments described in the present disclosure may be implemented by software or by hardware. Wherein, the name of the module does not constitute a limitation of the unit itself under certain circumstances.

The computer-readable storage medium provided by the present invention stores computer-readable program instructions for executing the above cylindrical surface marking method, which solves the technical problem of low marking accuracy of marking on the cylindrical surface through the 2D vibrating mirror. Compared with the prior art, the beneficial effect of the computer-readable storage medium provided by the embodiment of the present invention is the same as the beneficial effect of the method for marking a cylindrical surface provided by the above embodiment, and will not be repeated here.

Embodiment six

The present application also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned method for marking a cylindrical surface are realized.

The computer program product provided by the present application solves the technical problem of low marking accuracy of marking on a cylindrical surface through a 2D vibrating mirror. Compared with the prior art, the beneficial effect of the computer program product provided by the embodiment of the present invention is the same as the beneficial effect of the method for marking a cylindrical surface provided by the above embodiment, and will not be repeated here.

The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structures or equivalent process transformations made by using the description of the application and the accompanying drawings are directly or indirectly used in other related technical fields. , are all included in the patent processing scope of the present application in the same way.

Claims (10)

1. A cylindrical surface marking method is characterized in that, the cylindrical surface marking method comprises: Obtain the coordinates of at least one marking point of the graphic to be marked on the target cylindrical surface; According to the coordinates of each of the marking points, determine the corresponding marking point focal length, wherein the marking point focal length is the vertical distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer; According to the focal length of each marking point and the coordinates of each marking point, the target galvanometer is controlled to mark the pattern to be marked on the target cylindrical surface. 2. cylindrical surface marking method as claimed in claim 1, is characterized in that, the step of described obtaining the marking point coordinates of graphics to be marked on the target cylindrical surface comprises: Obtain the initial coordinates of the anchor point of the graphic to be marked; converting the initial coordinates of the positioning point into the coordinates of the marking point, wherein the coordinates of the marking point are used to characterize the spatial position of the marking point of the graphic to be marked on the target cylindrical surface. 3. cylindrical surface marking method as claimed in claim 2, is characterized in that, the described step of converting the initial coordinates of the positioning point into the coordinates of the marking point comprises: Acquiring the coordinates of the center point of the cylindrical surface of the target cylinder and the coordinates of the center point of the galvanometer of the target galvanometer; According to the coordinates of the center point of the cylindrical surface and the coordinates of the center point of the galvanometer, determine the center point distance; Calculate the coordinates of the marking point according to the center point distance and the initial coordinates of the positioning point. 4. The cylindrical surface marking method according to claim 2, wherein, before the step of obtaining the initial coordinates of the anchor points of the graphics to be marked, the cylindrical surface marking method further comprises: Obtaining a graphic to be marked input by a user, wherein the graphic to be marked includes at least one marking simulation point; In each of the marking simulation points, the simulation coordinates of the simulation positioning points are selected as the starting coordinates of the positioning points. 5. cylindrical surface marking method as claimed in claim 1, is characterized in that, described according to each described marking point coordinates, the step of determining corresponding marking point focal length comprises: calculating a focal depth correction parameter of at least one marking point on the cylindrical surface according to the coordinates of each marking point; According to each of the focal depth correction parameters, the galvanometer focal length of the corresponding marking point is corrected to obtain the focal length of each of the marking points. 6. The cylindrical surface marking method according to claim 1, wherein, according to the focal length of each of the marking points and the coordinates of each of the marking points, the target vibrating mirror is controlled to place the figure to be marked The steps of marking on the target cylindrical surface include: generating at least one positioning control signal according to the coordinates of each marking point and the corresponding focal length of the marking point; According to each of the positioning control signals and the corresponding marking control signals, the target galvanometer is controlled to mark the pattern to be marked on the target cylindrical surface. 7. The cylindrical surface marking method according to claim 6, wherein, according to each of the positioning control signals and the corresponding marking control signals, the target vibrating mirror is controlled to mark the graphic to be marked The steps on the target cylindrical surface also include: Responding to the cylindrical surface marking planning operation on the preset marking interface, acquiring graphic marking path planning information of the graphic to be marked; According to the graphic marking path planning information, a signal execution strategy is jointly matched for each of the positioning control signals and corresponding positioning control signals; According to the signal execution strategy, execute each of the positioning control signals and the corresponding marking control signals, so as to mark the pattern to be marked on the target cylindrical surface based on the target vibrating mirror. 8. A cylindrical marking device, characterized in that the cylindrical marking device comprises: An acquisition module, configured to acquire the coordinates of at least one marking point of the graphic to be marked on the target cylindrical surface; A determining module, configured to determine the corresponding marking point focal length according to the coordinates of each marking point, wherein the marking point focal length is the distance between the marking point on the target cylindrical surface and the focal point of the target galvanometer vertical distance; A control module, configured to control the target galvanometer to mark the pattern to be marked on the target cylindrical surface according to the focal length of each of the marking points and the coordinates of each of the marking points. 9. An electronic device, characterized in that the electronic device comprises: at least one processor; and, a memory communicatively coupled to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, the instructions are executed by the at least one processor, so that the at least one processor can perform any one of claims 1 to 7. The steps of the cylinder marking method. 10. A computer-readable storage medium, characterized in that, the computer-readable storage medium is stored with a program for realizing the cylindrical surface marking method, and the program for realizing the cylindrical surface marking method is executed by a processor to realize the following: The steps of the cylinder marking method described in any one of claims 1 to 7.

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