CN201186370Y - Multi-shaft numerical control and double worktable laser machining apparatus - Google Patents

Abstract

A laser processing device with multi-axis numeral control and dual-table, which comprises a machine tool body, a laser power supply which is installed on the machine tool body, and a water chiller which is used for cooling the laser power supply, a laser device which is installed on the machine tool body, and the device further comprises a first four-axis nc table which is installed on the machine tool body for the laser welding and the cutting processing and a second four-axis nc table which is installed on the machine tool body for the laser cladding and the heat treatment processing, a first laser processing head which is installed on the first four-axis nc table, and a second laser processing head which is installed on the second four-axis nc table, and the laser which is emitted by the laser device is delivered to the first laser processing head and the second laser processing head through a laser external light path. The utility model can conveniently, rapidly and respectively switch the same beam of CO2 laser to the required table through a dual-path light beam guiding unit of a laser external path, thereby compared with an existing laser processing device, the device of the utility model can realize the three-dimensional processing and the multi-process machining.

Description

Multi-axis CNC, double-table laser processing device

technical field

The utility model relates to a laser processing device, in particular to a multi-axis numerical control and double workbench laser processing device.

Background technique

The working principle of the current laser processing device is: the laser emits laser light, and the workpiece moves in a plane with the two-dimensional workbench according to the pre-stored program under the control of the numerical control system including monitoring equipment. When it reaches a given laser position, the laser is automatically fired and processed. Therefore, the prior art cannot perform three-dimensional processing, and complex processing procedures cannot be realized. In addition, the current laser processing device is usually provided with only one processing platform, and it is impossible to realize processes such as laser cladding, heat treatment, welding and cutting in a set of laser processing device.

Utility model content

The technical problem to be solved by the utility model is to provide a multi-axis numerical control and double-table laser processing device to solve many technical problems existing in the existing laser processing device.

The technical problem to be solved by the utility model can be realized through the following technical solutions: a multi-axis numerical control, double workbench laser processing device, comprising:

A machine bed,

A laser power supply installed on the bed of the machine tool and a chiller for cooling the laser power supply;

A laser set on the bed of a machine tool; it is characterized in that it also includes:

The first four-axis CNC workbench for laser welding and cutting processing and the second four-axis CNC workbench for laser cladding and heat treatment processing are set on the machine bed;

The first laser processing head arranged on the first four-axis numerical control workbench and the second laser processing head arranged on the second four-axis numerical control workbench;

The laser light emitted by the laser is delivered to the first laser processing head and the second laser processing head through the external optical path of the laser.

The outer optical path of the laser of the utility model also includes a dual beam guiding unit capable of switching the same beam of laser light emitted by the laser to the first laser processing head or the second laser processing head respectively.

The first four-axis CNC workbench of the present utility model includes a fixed operating platform arranged on the machine tool bed, a mobile gantry arranged on the cross slide table of the X and Y axes, and a mobile gantry arranged on the Z axis linear motion mechanism; the first laser processing head is detachably mounted on the Z-axis linear motion mechanism; a detachable cutting box and a detachable A-axis are installed on the fixed operating platform A moving vertical and horizontal dual-purpose numerical control turntable is provided with workpiece fixtures on the vertical and horizontal dual-purpose numerical control turntable.

The second four-axis numerical control workbench of the present utility model includes a mobile operation platform arranged on the cross slide table of X and Y axes, and a fixed gantry frame arranged on the machine bed is detachably arranged on the mobile operation platform. A vertical and horizontal dual-purpose CNC turntable that can realize A-axis movement, a workpiece fixture is arranged on the vertical and horizontal dual-purpose CNC turntable; a Z-axis linear motion mechanism is arranged on the fixed gantry, and the The second laser processing head is detachably mounted on the Z-axis linear motion mechanism.

In the present utility model, the X-axis and Y-axis cross slides include an X-axis linear motion mechanism capable of moving in the X-axis direction and a Y-axis linear motion mechanism capable of moving in the Y-axis direction. The X, Y, Z The shaft linear motion mechanism is a precision ball screw motion mechanism or a precision linear guide rail motion mechanism driven by a servo motor.

In the present utility model, the first and second laser processing heads are transmission focusing laser processing heads or reflection focusing laser processing heads; the transmission focusing laser processing heads are mainly used for laser cutting or welding processing, and the Reflective focusing laser processing head is mainly used for laser welding, cladding and heat treatment.

The reflective focusing laser processing head described in the utility model is equipped with a coaxial powder feeding device or a lateral powder feeding device to realize laser cladding.

The reflective focusing laser processing head of the present utility model adopts an integrating mirror focusing method when used for laser heat treatment and cladding.

The reflective focusing laser processing head of the present utility model is a reflective focusing laser processing head capable of ±90° numerical control deflection. In order to ensure that the reflective focusing laser processing head with ±90° numerical control deflection can be used interchangeably between the first four-axis numerical control workbench and the second four-axis numerical control workbench, the reflective focus laser processing head with ±90° numerical control deflection needs to An additional set of servo drives from Siemens is provided.

The lens-focused laser processing head is a lens-focused laser processing head with a Z-direction auto-focus function and a height tracking function.

The stroke range of the first four-axis numerical control workbench of the utility model is larger than the stroke range of the second four-axis numerical control workbench.

The laser processing device of the utility model adopts a double worktable with a large stroke range and a small stroke range, both of which are four-axis numerical control. The smaller workbench is mainly used for laser cladding and heat treatment test research and application, and the larger workbench is mainly used for It is used in the research and application of laser welding and cutting. For different research and application, the system can conveniently and quickly switch the same beam of _CO2 laser to the required workbench through the dual beam guiding unit of the laser external optical path, so the utility model is compatible with the existing laser processing device In contrast, three-dimensional processing and multi-process processing can be realized.

Description of drawings

Fig. 1 is a schematic view of the structure of the utility model.

Fig. 2 is a schematic diagram of the principle of the utility model.

Detailed ways

Hereinafter, preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings. What needs to be explained before this is that the terms or words used in this specification and claims should not be limited to the usual meaning or the meaning in the dictionary, but should be based on the best way to illustrate its utility model. The principle that the concepts of terms can be appropriately defined can be interpreted as meanings and concepts consistent with the technical thought of the present invention. Subsequently, the embodiment described in this description and the structure shown in the accompanying drawings are only one of the best embodiments of the utility model, and can not fully represent the technical thought of the utility model, so it should be understood that the utility model may There may be various equivalents and modifications that can be substituted.

Referring to Fig. 1 and Fig. 2, a multi-axis numerical control, double-table laser processing device includes a machine bed 1, a laser power supply 2 and a chiller 3 are installed on the machine bed 1, and the laser power supply 2 and the chiller 3 are connected to The existing laser power supply is the same as the water chiller, which is familiar to those skilled in the art, and will not be repeated here.

A laser 4 is installed on the machine tool bed 1, and the laser 4 is a _CO2 laser commonly used at present. The utility model is characterized in that double workbenches are installed on the machine bed 1, one workbench is the first four-axis numerical control workbench 5 for laser welding and cutting, and the other workbench is for laser cladding, For the second four-axis CNC workbench 6 processed by heat treatment, the travel range of the first four-axis CNC workbench 5 is larger than that of the second four-axis CNC workbench 6, so that the second four-axis CNC workbench with a smaller stroke range Workbench 6 can be used for experimental research and application of laser cladding and heat treatment.

The design scheme of the first four-axis CNC workbench 5 adopts the basic structure of "moving light", that is, the workpiece to be processed does not move in the three directions of X, Y, and Z axes, but only rotates in the direction of A axis, while the laser The beam moves in the directions of X, Y, and Z axes. Under such a design concept, the first four-axis CNC workbench 5 includes a fixed operating platform 51 arranged on the machine bed 1, and the X and Y axis cross slides 52 for realizing movement in the X and Y directions are installed on the machine tool. On the bed 1, a mobile gantry 53 is installed on the X and Y axis cross slides 52, so that the mobile gantry 53 can be driven by the X and Y axis cross slides 52 to move in the X and Y directions. A Z-axis linear motion mechanism 54 is installed on the mobile gantry 53, and a first laser processing head 55 is installed in a detachable manner on the Z-axis linear motion mechanism 54, so that the motion track of the first laser processing head 55 is in the X, Driven by the Y-axis cross slide 52 and the Z-axis motion mechanism 54, the movement in the three directions of X, Y, and Z axes is realized.

A detachable cutting box and a detachable vertical and horizontal dual-purpose CNC turntable for A-axis movement are installed on the fixed operating platform 51. A workpiece fixture is arranged on the vertical and horizontal dual-purpose CNC turntable. The workpiece clamp to be welded on the workholding. The vertical and horizontal dual-purpose CNC turntable can drive the workpiece to be welded to realize the A-axis rotation, and can be positioned at any angle.

The design scheme of the second four-axis CNC workbench 6 adopts the basic structure of "fixed light", that is, the workpiece to be laser cladding and heat treated can realize the movement of the X and Y axes and the rotation of the A axis. It can only move up and down along the Z axis. Under such a design idea, the second four-axis CNC workbench includes an X, Y axis cross slide 61 installed on the machine bed 1, and a mobile operating platform 62 is installed on the X, Y axis cross slide 61 , so that the mobile operating platform 62 can realize the movement in the two directions of the X and Y axes. The vertical and horizontal dual-purpose CNC turntable is detachably installed on the mobile operating platform 62, and the vertical and horizontal dual-purpose CNC turntable is set There is a workpiece fixture, and the workpiece to be laser cladding and heat treated is clamped on the workpiece fixture. The vertical and horizontal dual-purpose CNC turntable can drive the workpiece to be laser cladding and heat treated to achieve A-axis rotation, and can be positioned at any angle. In this way, the movement track of the workpiece to be laser cladding and heat treated is driven by the X, Y axis cross slide table 61 and the vertical and horizontal dual-purpose numerical control turntable to move and rotate in the three directions of X, Y, and A axes.

A fixed gantry 63 is fixedly installed on the machine bed 1 , a Z-axis linear motion mechanism 64 is installed on the fixed gantry 63 , and a second laser processing head 65 is detachably installed on the Z-axis linear motion mechanism 64 . In this way, the second laser processing head 65 is driven by the Z-axis linear motion mechanism 64 to move up and down in the Z-axis direction.

The above-mentioned X and Y axis cross slides 52 and 61 adopt an X-axis linear motion mechanism that can realize movement in the X-axis direction and a Y-axis linear motion mechanism that can realize movement in the Y-axis direction. All X, Y, and Z-axis linear motion mechanisms are It is a precision ball screw movement mechanism or a precision linear guide movement mechanism driven by a servo motor to ensure accuracy and reliability.

In this embodiment, a precision ball screw movement mechanism or a precision linear guide movement mechanism driven by a servo motor is well known in the art, and will not be further described here.

The laser light emitted by the laser is delivered to the first laser processing head 55 and the second laser processing head 65 through the external laser light path for processing. A two-way beam guiding unit 7 is arranged in the external optical path of the laser, and the two-way beam guiding unit 7 can switch the same beam of laser light emitted by the CO ₂ laser to the first laser processing head 55 or the second laser processing head 65 respectively.

The external optical path of the laser and the components for installation and adjustment of the optical path deflection in the two-way beam guiding unit 7 of this embodiment, as well as the optical elements used, such as focusing mirrors, reflective focusing mirrors, integral focusing mirrors, reflective mirrors, circular polarizing mirrors, etc. Products from KUGLER will be used to ensure reliability.

The first laser processing head 55 and the second laser processing head 65 adopt three kinds of laser processing heads with two specifications of transmission focusing and reflection focusing. The former is mainly used for laser cutting and welding; the latter is mainly used for welding and melting. Covering, heat treatment, can also be used for cutting.

When realizing laser cladding, the second laser processing head 65 adopts a reflective focusing laser processing head, and is equipped with a coaxial powder feeding device or a lateral powder feeding device to realize two forms of coaxial and lateral powder feeding for laser cladding.

When the reflective focusing laser processing head is used for laser heat treatment and cladding, it is best to use the integrating mirror focusing method for focusing.

The lens-focused laser processing head is a lens-focused laser processing head with Z-direction auto-focus function and height tracking function, so it can also be used as a simple teaching system.

The reflective focusing laser processing head is a reflective focusing laser processing head that can be deflected by ±90° CNC. In order to ensure that the reflective focus laser processing head with ±90° NC deflection can be used interchangeably between the first four-axis NC workbench 5 and the second four-axis NC workbench 6, the reflective focus laser processing head with ±90° NC deflection needs additional It is configured with a set of servo drives from Siemens.

The various laser processing heads in this embodiment can be conveniently exchanged quickly and accurately, and there is no need to readjust the external optical path after disassembly and reinstallation.

Claims (12)

1. A multi-axis numerical control, double-table laser processing device, comprising: A machine bed, A laser power supply installed on the bed of the machine tool and a chiller for cooling the laser power supply; A laser set on the bed of a machine tool; it is characterized in that it also includes: The first four-axis CNC workbench for laser welding and cutting processing and the second four-axis CNC workbench for laser cladding and heat treatment processing are set on the machine bed; The first laser processing head arranged on the first four-axis numerical control workbench and the second laser processing head arranged on the second four-axis numerical control workbench; The laser light emitted by the laser is delivered to the first laser processing head and the second laser processing head through the external optical path of the laser. 2. The multi-axis numerical control and double-table laser processing device as claimed in claim 1, wherein the external optical path of the laser also includes a laser that can switch the same beam of laser emitted by the laser to the Two-way beam guiding unit for the first laser processing head or the second laser processing head. 3. multi-axis numerical control as claimed in claim 1, double workbench laser processing device, it is characterized in that, described first four-axis numerical control workbench comprises a fixed operating platform arranged on the bed of the machine tool, one arranged on The mobile gantry above the X and Y-axis cross slides is provided with a Z-axis linear motion mechanism on the mobile gantry; the first laser processing head is detachably mounted on the Z-axis linear motion mechanism A detachable cutting box and a detachable vertical and horizontal dual-purpose CNC turntable for A-axis movement are installed on the fixed operating platform, and workpiece fixtures are arranged on the vertical and horizontal dual-purpose CNC turntable. 4. The multi-axis numerical control and double-table laser processing device as claimed in claim 1 or 3, wherein the second four-axis numerical control workbench includes a cross-slide table arranged on the X and Y axes The mobile operating platform is a fixed gantry set on the machine bed, and a vertical and horizontal dual-purpose CNC turntable that is detachably set on the mobile operating platform and can realize A-axis movement. A workpiece fixture is arranged on the turntable; a Z-axis linear motion mechanism is arranged on the fixed gantry, and the second laser processing head is detachably installed on the Z-axis linear motion mechanism. 5. The multi-axis numerical control and double-table laser processing device as claimed in claim 4, characterized in that, the X-axis and Y-axis cross slides include an X-axis linear motion mechanism capable of moving in the X-axis direction and realizing Y-axis movement. A Y-axis linear motion mechanism that moves in the axial direction, and the X, Y, and Z-axis linear motion mechanisms are precision ball screw motion mechanisms or precision linear guide rail motion mechanisms driven by servo motors. 6. The multi-axis numerical control and double-table laser processing device as claimed in claim 4, wherein the first and second laser processing heads are transmission focusing laser processing heads or reflection focusing laser processing heads; The transmission focusing laser processing head is mainly used for laser cutting or welding processing, and the reflection focusing laser processing head is mainly used for laser welding, cladding and heat treatment processing. 7. The multi-axis numerical control and double-table laser processing device according to claim 6, wherein the reflective focusing laser processing head is equipped with a coaxial powder feeding device or a side powder feeding device to realize laser melting cover. 8. The multi-axis numerical control and double-table laser processing device according to claim 6, wherein the reflective focusing laser processing head adopts an integrating mirror focusing method when used for laser heat treatment and cladding. 9. The multi-axis numerical control and double-table laser processing device according to claim 6, wherein the reflective focus laser processing head is a reflective focus laser processing head capable of ±90° numerical control deflection. 10. The multi-axis numerical control and double-table laser processing device according to claim 9, characterized in that, the reflective focus laser processing head with ±90° numerical control deflection needs to be additionally equipped with a set of servo drives from Siemens. 11. The multi-axis numerical control and double-table laser processing device according to claim 6, wherein the lens-focused laser processing head is a lens-focused laser processing head with Z-direction auto-focus function and height tracking function. 12. The multi-axis numerical control, double workbench laser processing device as claimed in claim 1, characterized in that, the stroke range of the first four-axis numerical control workbench is greater than the stroke of the second four-axis numerical control workbench scope.

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