CN210413048U - Laser welding head and laser welding equipment - Google Patents
Laser welding head and laser welding equipment Download PDFInfo
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- CN210413048U CN210413048U CN201920433410.3U CN201920433410U CN210413048U CN 210413048 U CN210413048 U CN 210413048U CN 201920433410 U CN201920433410 U CN 201920433410U CN 210413048 U CN210413048 U CN 210413048U
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Abstract
The application discloses a laser welding head. The converter comprises a converter cover and a converter chassis which are attached together and movably connected through a rotating shaft, wherein the converter chassis rotates around the rotating shaft; the converter cover is provided with a collimating mirror assembly at one end which is aligned with a product to be processed and deviates from the product to be processed, a first channel communicated with the collimating mirror assembly is arranged inside the converter cover, and the first channel is collinear with the axis of the collimating mirror assembly; at least two focusing mirror assemblies are uniformly arranged at one end of the converter chassis, which is far away from the converter cover, in the circumferential direction around the rotating shaft, a second channel which is collinear with and communicated with the axis of each focusing mirror assembly is arranged in the converter chassis, and each focusing mirror assembly can enable the axis of the focusing mirror assembly to be collinear with the axis of the collimating mirror assembly by rotating the converter chassis. This application sets up the focusing mirror of a plurality of the same or different specifications at the converter chassis, changes the focusing mirror through rotating to the welding of multiple different materials is adapted to.
Description
Technical Field
The application relates to the technical field of laser welding, more specifically says, in particular to laser welding head and laser welding equipment.
Background
Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source. Laser welding is one of the important aspects of the application of laser material processing techniques.
A laser welding head is an important device in a laser welding system, and is mainly composed of a collimating part and a focusing part. The collimating part shapes the laser beam with a certain divergence angle into a parallel laser beam, and the focusing part focuses the parallel laser beam into a light spot with extremely high energy density, so that the light spot can be used for welding. Generally, because the structure of the focusing mirror in the focusing part is fixed, the energy density of the formed laser spot and the spatial plane (focal plane) where the spot is located are fixed. However, the energy density of the laser spot required for processing different materials is very different, so that it is difficult for the same welding head to adapt to welding processing of different materials.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems provided above, the present application provides a laser welding head, which includes a plurality of focusing mirrors of the same specification or different specifications, and can achieve the purpose of providing light spots of different levels of energy density and adapting to welding of a plurality of materials.
The embodiment of the application provides a laser welding head;
the converter comprises a converter cover and a converter chassis which are attached together and movably connected through a rotating shaft, wherein the converter chassis rotates around the rotating shaft;
the converter cover is provided with a collimating mirror assembly on a straight line aligned with a product to be processed, the collimating mirror assembly is positioned at one end of the converter cover, which is far away from the product to be processed, a first channel communicated with the collimating mirror assembly is arranged inside the converter cover, and the axis of the first channel is collinear with the axis of the collimating mirror assembly;
at least two focusing mirror assemblies are arranged at one end of the converter chassis, which is far away from the converter cover, in the circumferential direction around the rotating shaft, a second channel which is collinear with and communicated with the axis of each focusing mirror assembly is arranged in the converter chassis, and each focusing mirror assembly can enable the axis of the focusing mirror assembly to be collinear with the axis of the collimating mirror assembly by rotating the converter chassis.
Furthermore, each focusing mirror assembly comprises a focusing mirror lens barrel, a protective mirror assembly, a direct blowing cylinder and a protective air nozzle, wherein the inner parts of the focusing mirror lens barrel, the protective mirror assembly, the direct blowing cylinder and the protective air nozzle are all communicated;
one end of the focusing lens barrel is connected with the converter chassis and communicated with the second channel in the converter chassis;
the focusing lens assembly further comprises a focusing lens, and the focusing lens is arranged at one end, contacting the second channel, in the focusing lens barrel;
the protective mirror assembly is arranged at the other end of the focusing lens cone;
the direct blowing cylinder is arranged at one end of the protective mirror assembly far away from the focusing mirror lens barrel,
the protective air nozzle is arranged at one end of the straight blowing cylinder, which is far away from the protective mirror assembly;
and the penetrating parts inside the focusing lens barrel, the protective lens assembly, the direct blowing cylinder and the protective gas nozzle are collinear with the axis of the second channel.
Further, the specifications of the focusing mirrors adapted to each focusing mirror assembly may be the same or different.
Optionally, the number of the focusing mirror assemblies is four, and the focusing mirror assemblies are uniformly arranged at one end of the converter chassis, which faces away from the converter cover, in the circumferential direction around the rotating shaft.
Further, the focal lengths of the focusing mirrors matched with the four focusing mirror assemblies are respectively 100mm, 150mm, 200mm and 250 mm.
Optionally, the protective glass assembly specifically includes:
a protective lens cone with two opposite ends respectively connected with the focusing lens cone and the direct blowing cylinder,
and the protective lens fixing ring are arranged in the protective lens barrel.
Optionally, the collimating lens assembly includes a connector, a collimating lens bracket, a collimating lens barrel, and an optical fiber connector, all of which are penetrated and communicated with each other inside;
one end of the collimating mirror bracket is arranged on the converter cover through the connecting piece, and the penetrating part inside the collimating mirror bracket is communicated with the first channel;
the collimating mirror assembly further comprises a collimating mirror, and the collimating mirror is arranged in the collimating mirror support;
the other end of the collimating mirror bracket is also provided with an optical fiber connector used for being connected with an external optical fiber;
the inner penetrating parts of the connecting piece, the collimating mirror bracket, the collimating mirror lens barrel and the optical fiber connector are collinear with the axis of the first channel.
Furthermore, a CCD assembly for visual observation and positioning is arranged on the outer side of the connecting piece.
Furthermore, the CCD assembly comprises a first CCD lens cone, a second CCD lens cone and a third CCD lens cone which are internally penetrated and communicated; the first CCD lens cone is arranged on the outer side wall of the connecting piece, an opening which is used for being connected with the first CCD lens cone and communicated with the first CCD lens cone is arranged on the outer side wall of the connecting piece, the first CCD lens cone is fixedly connected with the opening, the other end of the first CCD lens cone is connected with the second CCD lens cone, the opening of the other end of the second CCD lens cone is connected with the third CCD lens cone, and a camera is arranged at the other end of the third CCD lens cone.
The embodiment of the application also provides laser welding equipment;
including a laser welding head as previously described.
Compared with the prior art, the embodiment of the application has the following main advantages:
the laser welding head in the embodiment is convenient and quick to replace the focusing lens assembly by rotating the converter chassis, and can provide light spots with different levels of energy density to adapt to welding of various materials if the focusing lenses arranged on the focusing lens assembly have different specifications; if the focusing mirrors arranged on the focusing mirror assemblies are of the same specification, when one focusing mirror assembly is damaged, a laser welding head does not need to be detached, and only the chassis of the converter needs to be rotated to replace the other focusing mirror assembly for use, so that the focusing mirror assembly is very convenient and fast.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of a laser welding head according to an embodiment of the present disclosure;
FIG. 2 is a front view of a laser cut weld joint in an embodiment of the present application;
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;
fig. 4 is a schematic structural diagram of a protective mirror assembly in an embodiment of the present application.
Description of reference numerals:
1. a converter cover; 2. a converter chassis; 3. a rotating shaft; 4. a focusing mirror assembly; 41. a focusing mirror; 42. a focusing lens barrel; 43. a protective mirror assembly; 431. a protective lens barrel; 432. protective glass lenses; 433. a protective glass fixing ring; 44. a direct blowing cylinder; 45. a shielding gas nozzle; 5. a collimating mirror assembly; 51. a connecting member; 511. an adapter plate; 512. connecting the square head; 52. a collimator lens holder; 53. a collimating mirror; 54. a collimator lens barrel; 55. an optical fiber connector; 6. a CCD assembly; 61. a first CCD lens barrel; 62. a second CCD lens barrel; 63. a third CCD lens barrel; 64. a camera.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
In the description of the application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be considered limiting of the application.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiments of the present application provide a laser welding head,
the converter comprises a converter cover and a converter chassis which are attached together and movably connected through a rotating shaft, wherein the converter chassis rotates around the rotating shaft;
the converter cover is provided with a collimating mirror assembly on a straight line aligned with a product to be processed, the collimating mirror assembly is positioned at one end of the converter cover, which is far away from the product to be processed, a first channel communicated with the collimating mirror assembly is arranged inside the converter cover, and the axis of the first channel is collinear with the axis of the collimating mirror assembly;
at least two focusing mirror assemblies are arranged at one end of the converter chassis, which is far away from the converter cover, in the circumferential direction around the rotating shaft, a second channel which is collinear with and communicated with the axis of each focusing mirror assembly is arranged in the converter chassis, and each focusing mirror assembly can enable the axis of the focusing mirror assembly to be collinear with the axis of the collimating mirror assembly by rotating the converter chassis.
The laser welding head in the embodiment is convenient and quick to replace the focusing mirror assembly by rotating the converter chassis, and can provide light spots with different levels of energy density to adapt to welding of various materials if the focusing mirrors arranged on the focusing mirror assembly are different in specification; if the focusing mirrors arranged on the focusing mirror assemblies are of the same specification, when one focusing mirror assembly is damaged, the laser welding head does not need to be detached, and only the converter chassis needs to be rotated to replace the other focusing mirror assembly for use, so that the focusing mirror assembly is convenient and quick to use.
Based on the laser welding head, the embodiment of the application also provides a laser welding device which comprises the laser welding head.
In this embodiment, the laser welding equipment using the laser welding head changes different focusing mirror assemblies by rotating the converter chassis without changing the laser welding head, and the focusing mirror assemblies can be changed by only rotating the converter chassis, so that the laser welding equipment is convenient and quick, and can provide light spots with different levels of energy densities to adapt to welding of various materials if the focusing mirrors arranged on the focusing mirror assemblies are different in specification; if the focusing mirrors arranged on the focusing mirror assemblies are of the same specification, when one focusing mirror assembly is damaged, the other focusing mirror assembly is replaced for use without detaching the laser welding head.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the relevant drawings.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a laser welding head according to an embodiment of the present disclosure; FIG. 2 is a front view of a laser cut weld joint in an embodiment of the present application; fig. 3 is a cross-sectional view taken along the plane a-a in fig. 2.
The application provides a laser welding head, including laminating converter lid 1 and converter chassis 2 together, and both pass through rotation axis 3 swing joint, converter chassis 2 centers on rotation axis 3 rotates.
The converter cover 1 is provided with a collimator lens assembly 5 on a straight line aligned with a product to be processed (not shown), and the collimator lens assembly 5 is positioned at one end of the converter cover 1, which faces away from the product to be processed. A first channel 11 communicated with the collimating mirror assembly 5 is arranged inside the converter cover 1, and the first channel 11 is in line with the axis of the collimating mirror assembly 5. Specifically, the collimator lens assembly 5 includes a connector 51, a collimator lens bracket 52, a collimator lens barrel 54, and an optical fiber connector 55, all of which are penetrated through and communicated with each other; one end of the collimator lens bracket 52 is mounted on the converter cover 1 through a connecting piece 51, and a penetrating part of the collimator lens bracket 52 is communicated with the first channel 11. More specifically, in the present embodiment, the collimator lens assembly 5 is adapted to a collimator lens specification of 150. The connecting member 51 includes an adapter plate 511 and a connecting square head 512, and is used for mounting the collimator lens bracket 52 on the converter cover 1, specifically, one side of the adapter plate 511 is fixed on the converter cover 1, the other side of the adapter plate 511 is the connecting square head 512, and one end of the connecting square head 512 away from the converter cover 1 is connected with the collimator lens bracket 52.
The collimating mirror assembly 5 further comprises a collimating mirror 53, and the collimating mirror 53 is arranged in the collimating mirror support 52. More specifically, the penetrating portion of the collimator holder 52 is designed to be stepped, the collimator 53 is mounted on the side with the larger diameter, one side of the collimator 53 abuts against the stepped surface, the other side is fixed by a collimator fixing ring, and the other end of the collimator fixing ring is a collimator lens barrel 54.
The other end of the collimator lens barrel 54 is further provided with an optical fiber connector 55 for connecting an external optical fiber. The laser in the optical fiber enters the collimating mirror assembly 5 from the optical fiber connector 55 and then enters the first channel 11 in the converter cover 1, specifically, the laser firstly enters the optical fiber connector 55 and sequentially passes through the collimating mirror lens barrel 54, the collimating mirror support 52 and the connecting piece 51, and since the laser is linearly transmitted, in order to linearly transmit the laser, in the collimating mirror assembly 5, the internal penetrating parts of the connecting piece 51, the collimating mirror support 52, the collimating mirror lens barrel 54 and the optical fiber connector 55 are collinear with the axis of the first channel 11.
At least two focusing mirror assemblies 4 are arranged at one end of the converter chassis 2, which is far away from the converter cover 1, in the circumferential direction around the rotating shaft 3, a second channel 21 which is collinear with and communicated with the axis of each focusing mirror assembly 4 is arranged in the converter chassis 2, and each focusing mirror assembly 4 can enable the axis of the focusing mirror assembly 4 to be collinear with the axis of the collimating mirror assembly 5 by rotating the converter chassis 2, and the arrangement is that each focusing mirror assembly 4 can have an opportunity to form a channel for linear laser propagation with the collimating mirror assembly 5. When the axis of one of the focusing mirror assemblies 4 is in a straight line with the axis of the collimating mirror assembly 5, because the second channel 21 is in a straight line with the focusing mirror assembly 4, the second channel 21, the collimating mirror assembly 5 and the first channel 11 are both in a straight line, and the first channel 11 is in contact communication with the second channel 21, the laser in the optical fiber enters the collimating mirror assembly 5 from the optical fiber connector 55, then enters the first channel 11 in the converter cover 1, then enters the second channel 21 in the converter chassis 2, finally enters the focusing mirror assembly 4, and goes out of the focusing mirror assembly 4 and directly emits to a product to be processed for laser welding.
The focusing mirror assemblies 4 may be arranged uniformly or non-uniformly in the circumferential direction around the rotation axis 3 at the end of the converter chassis 2 facing away from the converter cover 1.
In the present embodiment, the focusing mirror assemblies 4 are uniformly arranged.
When none of the axes of the focusing mirror assembly 4 is collinear with the axis of the collimator mirror assembly 5, the focusing mirror assembly 4 may be rotated into a position aligned with the product to be processed and the collimator mirror assembly 5 by rotating the converter chassis 2.
If the axis of one focusing mirror assembly 4 is collinear with the axis of the collimating mirror assembly 3 and is opposite to a product to be processed, other focusing mirror assemblies 4 are required to be replaced, and the converter chassis 2 only needs to be rotated by corresponding angles. The corresponding angle theta is an angle which needs to be rotated when the product is rotated from the focusing mirror assembly 4 which is opposite to the product to be processed to the target focusing mirror assembly 4 which needs to be replaced, N (N is a natural number of 1, 2 and 3 … …) represents the number of the focusing mirror assemblies 4, M (M is a natural number of 1, 2 and 3 … …) represents that several focusing mirror assemblies 4 need to be rotated when the product is rotated from the focusing mirror assembly 4 which is opposite to the product to be processed to the target focusing mirror assembly 4 which needs to be replaced, then the target focusing mirror assembly 4 is required to be replaced, and the specific calculation formula can be theta is 360 DEG/N M,
where M may have two results if the converter chassis 2 can be rotated in both forward and reverse directions, M being the only result if the converter chassis 2 is set to rotate in only one direction.
More specifically, the following is a detailed description of an example,
in the present embodiment, the focusing lens assembly 4 includes four, so N is 4; the four focusing mirror assemblies 4 are uniformly arranged around the rotating shaft 3, the angle required to rotate between every two focusing mirror assemblies 4 is 90 degrees, and the angle can be specifically calculated by dividing 360 degrees by 4.
The focusing mirror assembly 4 facing the product to be processed is called a first focusing mirror assembly 4, the rest of the focusing mirror assemblies are a second focusing mirror assembly 4, a third focusing mirror assembly 4 and a fourth focusing mirror assembly 4 in turn counterclockwise (or clockwise), if the first focusing mirror assembly 4 is rotated to the third focusing mirror assembly 4, the number M of the focusing mirror assemblies 4 which need to be rotated counterclockwise is 2, and therefore the corresponding angle theta which needs to be rotated is 90 degrees × 2 degrees and 180 degrees; the number M of focusing mirror assemblies 4 that need to be rotated clockwise is 2, and therefore the corresponding angle θ that needs to be rotated is 90 ° by 2 — 180 °. The specific rotating method can be manual rotation or motor program control.
In other embodiments, the number of focusing lens assemblies 4 may be two, three, or five ….
Alternatively, in some other embodiments, the focusing mirror assemblies 4 are not uniformly arranged in the circumferential direction around the rotating shaft 3 at the end of the converter chassis 2 facing away from the converter cover 1, and the focusing mirror assemblies 4 can be rotated to the position aligned with the product to be processed and the collimator mirror assembly 5 by rotating the converter chassis 2, or other focusing mirror assemblies 4 can be replaced as needed.
Optionally, specifications of the focusing lens 41 adapted to each of the focusing lens assemblies 4 are different, for example, in this embodiment, focal lengths of the focusing lens 41 adapted to each of the focusing lens assemblies 4 are 100mm, 150mm, 200mm, and 250mm, respectively. The advantage of this arrangement is that the same laser welding head can provide several different levels of energy density of the light spot, which is suitable for welding of various materials.
In other embodiments, the specifications of the focusing lens 41 adapted to each focusing lens assembly 4 may be the same. The advantage of setting up like this is when the focusing mirror subassembly 4 that is using breaks down can not the time spent, can need only to rotate converter chassis 2 and change another focusing mirror subassembly 4 can, convenient and fast without dismantling the laser welding head.
Specifically, in the present embodiment, each of the focusing lens assemblies 4 includes a focusing lens barrel 42, a protective lens assembly 43, a blow-through cylinder 44 and a protective gas nozzle 45, which are all communicated with each other and penetrate through the inside;
one end of the focusing lens barrel 42 is connected with the converter chassis 2 and communicated with the second channel 21 in the converter chassis 2; specifically, the focusing lens barrel 42 and the second passage 21 are provided with mating threads, and the two are connected to each other by the threads.
The focusing lens assembly 4 further comprises a focusing lens 41, and the focusing lens 41 is arranged at one end of the focusing lens barrel 42 contacting the second channel 21; specifically, a stepped shape for mounting the focusing lens 41 is provided in the focusing lens barrel 42, one side of the focusing lens 41 abuts against the stepped surface, and the other end is provided with a lens fixing ring for fixing the focusing lens 41.
The protective lens assembly 43 is disposed at the other end of the focus lens barrel 42; specifically, referring to fig. 3 and 4, fig. 4 is a schematic structural diagram of a protective mirror assembly in the embodiment of the present application, where the protective mirror assembly 43 includes a protective mirror cylinder 431 having opposite ends respectively connected to the focusing mirror cylinder 42 and the direct blowing cylinder 44, and a protective mirror lens 432 and a protective mirror fixing ring 433 installed in the protective mirror cylinder 431.
The direct blowing cylinder 44 is disposed at an end of the protection mirror assembly 43 away from the focusing mirror barrel 42, and specifically, the direct blowing cylinder 44 is connected to the protection mirror barrel 431 of the protection mirror assembly 43 through a thread.
The protective air nozzle 45 is arranged at one end of the straight blow cylinder 44 far away from the protective mirror assembly 43; specifically, the shielding gas nozzle 45 is connected with the direct blowing cylinder 44 through a screw thread.
In order to make the laser light travel straight inside the focusing lens assembly 4, the penetrating portions inside the focusing lens barrel 42, the protective lens assembly 43, the blow-through cylinder 44, and the protective gas nozzle 45 are collinear with the axis of the second passage 21.
In other embodiments, the outside of the connector 51 is also provided with a CCD assembly for visual observation and positioning. Specifically, the CCD assembly is disposed outside the connection square head 512.
Optionally, the CCD assembly includes a first CCD lens barrel 61, a second CCD lens barrel 62, and a third CCD lens barrel 63, which are internally penetrated and communicated with each other, the first CCD lens barrel 61 is specifically disposed on an outer side wall of the connecting member 51, an opening for connecting and communicating with the first CCD lens barrel 61 is disposed on an outer side wall of the connecting member 51, the first CCD lens barrel 61 is fixedly connected with the opening, the other end is connected with the second CCD lens barrel 62, an opening at the other end of the second CCD lens barrel 62 is connected with the third CCD lens barrel 63, and a camera 64 is disposed at the other end of the third CCD lens barrel 63.
The present application also provides a laser welding apparatus comprising a laser welding head as described above.
In this embodiment, the laser welding device using the laser welding head as described above changes the different focusing mirror assemblies 4 by rotating the converter chassis 2, and the focusing mirror assemblies 4 can be changed by only rotating the converter chassis 2 without changing the laser welding head, which is convenient and fast, and if the focusing mirrors 41 installed on the focusing mirror assemblies 4 are of different specifications, light spots with different levels of energy density can be provided, so as to adapt to welding of various materials; if the focusing mirrors 4 mounted on the focusing mirror assemblies 4 are of the same specification, when one focusing mirror assembly 4 is damaged, the other focusing mirror assembly 4 can be replaced for use without detaching the laser welding head or reinstalling the focusing mirror 41.
It should be understood that the above-described embodiments are merely illustrative of some, but not all, embodiments of the present application, and that the present invention is not limited by the scope of the appended claims. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (9)
1. A laser welding head is characterized in that,
the converter comprises a converter cover and a converter chassis which are attached together and movably connected through a rotating shaft, wherein the converter chassis rotates around the rotating shaft;
the converter cover is provided with a collimating mirror assembly on a straight line aligned with a product to be processed, the collimating mirror assembly is positioned at one end of the converter cover, which is far away from the product to be processed, a first channel communicated with the collimating mirror assembly is arranged inside the converter cover, and the axis of the first channel is collinear with the axis of the collimating mirror assembly;
at least two focusing mirror assemblies are arranged at one end of the converter chassis, which is far away from the converter cover, in the circumferential direction around the rotating shaft, a second channel which is collinear with and communicated with the axis of each focusing mirror assembly is arranged in the converter chassis, and each focusing mirror assembly can enable the axis of the focusing mirror assembly to be collinear with the axis of the collimating mirror assembly by rotating the converter chassis.
2. The laser welding head of claim 1 wherein each focusing mirror assembly comprises a focusing mirror barrel, a shield mirror assembly, a blow-through barrel, and a shield gas nozzle all communicating internally therethrough;
one end of the focusing lens barrel is connected with the converter chassis and communicated with the second channel in the converter chassis;
the focusing lens assembly further comprises a focusing lens, and the focusing lens is arranged at one end, contacting the second channel, in the focusing lens barrel;
the protective mirror assembly is arranged at the other end of the focusing lens cone;
the direct blowing cylinder is arranged at one end of the protective mirror assembly far away from the focusing mirror lens barrel,
the protective air nozzle is arranged at one end of the straight blowing cylinder, which is far away from the protective mirror assembly;
and the penetrating parts inside the focusing lens barrel, the protective lens assembly, the direct blowing cylinder and the protective gas nozzle are collinear with the axis of the second channel.
3. The laser welding head of claim 2 wherein,
the number of the focusing mirror assemblies is four, and the focusing mirror assemblies are uniformly arranged at one end of the converter chassis, which is far away from the converter cover, in the circumferential direction around the rotating shaft.
4. The laser welding head of claim 3 wherein,
the focal lengths of the focusing mirrors matched with the four focusing mirror assemblies are respectively 100mm, 150mm, 200mm and 250 mm.
5. The laser welding head of claim 2 wherein,
the protective glass assembly specifically comprises:
a protective lens cone with two opposite ends respectively connected with the focusing lens cone and the direct blowing cylinder,
and the protective lens fixing ring are arranged in the protective lens barrel.
6. The laser welding head of claim 2 wherein the collimating mirror assembly comprises a connector, a collimating mirror holder, a collimating mirror barrel, and a fiber connector all of which pass through and communicate with each other;
one end of the collimating mirror bracket is arranged on the converter cover through the connecting piece, and the penetrating part inside the collimating mirror bracket is communicated with the first channel;
the collimating mirror assembly further comprises a collimating mirror, and the collimating mirror is arranged in the collimating mirror support;
the other end of the collimating mirror bracket is also provided with an optical fiber connector used for being connected with an external optical fiber;
the inner penetrating parts of the connecting piece, the collimating mirror bracket, the collimating mirror lens barrel and the optical fiber connector are collinear with the axis of the first channel.
7. The laser welding head of claim 6 wherein the outside of the connector is further provided with a CCD assembly for visual observation and positioning.
8. The laser welding head of claim 7 wherein the CCD assembly comprises a first CCD cone, a second CCD cone and a third CCD cone which are internally penetrated and communicated; the first CCD lens cone is arranged on the outer side wall of the connecting piece, an opening which is used for being connected with the first CCD lens cone and communicated with the first CCD lens cone is arranged on the outer side wall of the connecting piece, the first CCD lens cone is fixedly connected with the opening, the other end of the first CCD lens cone is connected with the second CCD lens cone, the opening of the other end of the second CCD lens cone is connected with the third CCD lens cone, and a camera is arranged at the other end of the third CCD lens cone.
9. A laser welding apparatus comprising a laser welding head as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920433410.3U CN210413048U (en) | 2019-03-31 | 2019-03-31 | Laser welding head and laser welding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920433410.3U CN210413048U (en) | 2019-03-31 | 2019-03-31 | Laser welding head and laser welding equipment |
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| CN210413048U true CN210413048U (en) | 2020-04-28 |
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| CN201920433410.3U Active CN210413048U (en) | 2019-03-31 | 2019-03-31 | Laser welding head and laser welding equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115740737A (en) * | 2022-11-18 | 2023-03-07 | 安徽中科春谷激光产业技术研究院有限公司 | Device and method for adjusting laser spot diameter output of selective laser melting system |
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2019
- 2019-03-31 CN CN201920433410.3U patent/CN210413048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115740737A (en) * | 2022-11-18 | 2023-03-07 | 安徽中科春谷激光产业技术研究院有限公司 | Device and method for adjusting laser spot diameter output of selective laser melting system |
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Effective date of registration: 20220902 Address after: 518000 workshop 501, building 3, intelligent manufacturing center park, No. 12, Chongqing Road, Heping community, Fuhai street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Han's lithium battery intelligent equipment Co.,Ltd. Address before: 518000 9 new West Road, North Nanshan District high tech park, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. |
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