Material pressing device for laser welding and laser welding equipment

Abstract

The invention relates to a material pressing device for laser welding and laser welding equipment, and the material pressing device for laser welding comprises a support, a material pressing plate, a material pressing plate and a material pressing plate, the rolling piece is rotationally connected with the support, the rolling piece corresponds to the position of the through hole, and the rolling piece has light transmission performance; and the cleaning assembly is connected with the support, the cleaning assembly comprises a cleaning piece, and the cleaning end of the cleaning piece can abut against the rolling piece. According to the material pressing device for laser welding and the laser welding equipment, deformation of the welding position can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding pressing devices, and in particular to a pressing device for laser welding and laser welding equipment. Background Art

[0002] Laser welding is an efficient and precise welding technology that uses a high-energy-density laser beam as a heat source. During the laser welding of thin plates, the thin plates are easily deformed and have different flatness, which leads to height differences at the welding positions, which in turn leads to height differences and gaps at the welding positions of the thin plates after welding. Currently, rollers, pressure plates, etc. are used to press down the thin plates near the welding positions to reduce the deformation of the thin plates, but pressing down the thin plates near the welding positions will cause the welding positions to bulge, affecting the welding effect. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a material pressing device and laser welding equipment for laser welding, which can avoid deformation of the welding position.

[0004] In order to solve the above technical problems, the present invention provides a material pressing device for laser welding, comprising: a bracket, the bracket is provided with a through hole, and the through hole is used for the welding laser to pass through; a rolling member, the rolling member is rotatably connected to the bracket, the rolling member corresponds to the position of the through hole, and the rolling member is light-transmitting; a cleaning component, the cleaning component is connected to the bracket, the cleaning component includes a cleaning member, and the cleaning end of the cleaning member can be abutted against the rolling member.

[0005] In one embodiment of the present invention, a groove is provided on the rolling element along the circumferential direction, and the groove corresponds to the position of the through hole.

[0006] In one embodiment of the present invention, an arc-shaped protrusion is provided at the bottom of the groove, and an end of the protrusion is located in the plane where the side wall of the rolling element is located.

[0007] In one embodiment of the present invention, the diameter of the rolling element gradually decreases from the middle to the end of the rolling element.

[0008] In one embodiment of the present invention, the bracket is provided with a accommodating cavity, the rolling member is located in the accommodating cavity, the through hole is communicated with the accommodating cavity, a connecting member is provided at the end of the accommodating cavity, and the rolling member is rotatably connected to the connecting member.

[0009] In one embodiment of the present invention, the cleaning assembly further comprises a connecting plate, the connecting plate is connected to the bracket, the cleaning member is connected to the connecting plate, and the cleaning end of the cleaning member can abut against the side wall of the rolling member.

[0010] In one embodiment of the present invention, the cleaning assembly also includes a guide rod, a first baffle, a second baffle and an elastic member, the guide rod is slidably connected to the connecting plate, one end of the guide rod is connected to the cleaning member, the other end of the guide rod is connected to the second baffle, the second baffle can be abutted against the connecting plate, the first baffle is connected to the guide rod, one end of the elastic member is abutted against the first baffle, and the other end of the elastic member is abutted against the connecting plate.

[0011] In one embodiment of the present invention, the cleaning assembly also includes an adjusting member and a third baffle, the guide rod is slidably connected to the third baffle, the third baffle can be abutted against the first baffle, the adjusting member is threadedly connected to the connecting plate, and the end of the adjusting member is connected to the third baffle.

[0012] In one embodiment of the present invention, a first driving member is connected to the bracket, and an output end of the first driving member is connected to the connecting plate.

[0013] The present invention also provides a laser welding device, comprising the above-mentioned material pressing device for laser welding.

[0014] The above technical solution of the present invention has the following advantages compared with the prior art:

[0015] The material pressing device and laser welding equipment described in the present invention can press down the welding position during welding through the cooperation between the bracket and the rolling element and the light transmittance of the rolling element, thereby preventing the welding position from being deformed or arched, keeping the welding position flat, refining the internal components of the weld, and eliminating residual stress after welding. The rotatable setting of the rolling element can prevent the rolling element from sliding and rubbing against the workpiece to be welded, avoiding scratches on the surface of the workpiece to be welded, preventing the workpiece to be welded from moving due to excessive friction, and flattening the position of the welded part with residual heat and uneven surface after welding. Through the setting of the cleaning component, the cleaning element can clean impurities on the side wall of the rolling element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of a material pressing device for laser welding of the present invention;

[0018] Figure 2 is a structural schematic diagram of another embodiment of a rolling element;

[0019] Figure 3 is a structural schematic diagram of another embodiment of a rolling element;

[0020] Figure 4 It is a schematic diagram of the assembly structure of the cleaning component and the bracket;

[0021] Figure 5 It is a schematic diagram of the structure of the cleaning component.

[0022] Explanation of the reference numerals in the specification: 1. bracket; 2. rolling member; 3. member to be welded; 4. cleaning assembly; 5. first driving member; 11. through hole; 12. accommodating chamber; 13. connecting member; 21. groove; 41. cleaning member; 42. connecting plate; 43. guide rod; 44. adjusting member; 45. connecting block; 46. first baffle; 47. elastic member; 48. second baffle; 49. third baffle. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Embodiment 1

[0025] Reference Figure 1 As shown, a material pressing device for laser welding of the present invention comprises: a bracket 1, the bracket 1 is provided with a through hole 11, and the through hole 11 is used for the welding laser to pass through; a rolling member 2, the rolling member 2 is rotatably connected to the bracket 1, the rolling member 2 corresponds to the position of the through hole 11, and the rolling member 2 is light-transmitting; a cleaning component 4, the cleaning component 4 is connected to the bracket 1, the cleaning component 4 comprises a cleaning member 41, and the cleaning end of the cleaning member 41 can be abutted against the rolling member 2.

[0026] In a material pressing device for laser welding of this embodiment, the rolling element 2 presses down the welding position of the workpiece 3 to be welded, and the welding laser sequentially penetrates the through hole 11 and the rolling element 2 to weld the welding position of the workpiece 3 to be welded. By moving the bracket 1, the welding laser can continuously weld the welding position of the workpiece 3 to be welded, and the rolling element 2 moves along the welding position of the workpiece 3 to be welded, thereby continuously pressing down the welding position. Through the cooperation between the bracket 1 and the rolling element 2, and the light transmittance of the rolling element 2, the welding position can be pressed down while welding, preventing the welding position from being deformed or arched, keeping the welding position flat, refining the internal components of the weld, and eliminating the residual stress after welding. Through the rotatable setting of the rolling element 2, the sliding friction between the rolling element 2 and the workpiece 3 to be welded is prevented, and scratches on the surface of the workpiece 3 to be welded are avoided. It can also prevent the position of the workpiece 3 to be welded from moving due to excessive friction, and can also flatten the position on the welded part that has residual heat and an uneven surface after welding. Through the setting of the cleaning component 4, the cleaning element 41 can clean the impurities on the side wall of the rolling element 2.

[0027] The bracket 1 is used to connect the rolling element 2. The top of the bracket 1 is provided with a through hole 11 for the welding laser to pass through. The through hole 11 is arranged perpendicular to the top of the bracket 1. The bottom of the bracket 1 is provided with a receiving cavity 12. The through hole 11 is connected to the receiving cavity 12. A connector 13 is provided at the end of the receiving cavity 12, that is, the bottom of the bracket 1 is located at the edge of the open end of the receiving cavity 12. Two connectors 13 are symmetrically arranged.

[0028] The rolling member 2 is rotationally connected to the bracket 1, and the position of the rolling member 2 corresponds to the through hole 11. The rolling member 2 is light-transmitting. Specifically, the rolling member 2 is made of a material with high light transmittance, high hardness and high temperature resistance, such as diamond material, so as to ensure that the rolling member 2 will not be damaged during the welding process. The rolling member 2 is cylindrical, and the rolling member 2 is located in the accommodating cavity 12, and part of the rolling member 2 protrudes from the accommodating cavity 12. The two ends of the rolling member 2 are rotationally connected to the two connecting members 13 respectively, so that the rolling member 2 is rotationally connected to the bracket 1. The rolling member 2 corresponds to the through hole 11 in the vertical direction. After the welding laser passes through the through hole 11, it can move along the cross-sectional diameter of the rolling member 2, pass through the center position of the rolling member 2 until the welding position of the part 3 to be welded. During the movement of the bracket 1, the rolling member 2 can roll on the part 3 to be welded, and the side wall of the rolling member 2 abuts against the part 3 to be welded.

[0029] Reference Figure 2 As shown, in another embodiment, a groove 21 is provided in the middle position on the side wall of the rolling element 2 along the circumferential direction, and the groove 21 corresponds to the position of the through hole 11, that is, the welding laser can pass through the groove 21 to the welding position of the part 3 to be welded after passing through the through hole 11. The setting of the groove 21 allows the heat and metal vapor generated during laser welding to dissipate, thereby preventing the rolling element 2 and the part 3 to be welded from being overheated. Preferably, an arc-shaped protrusion is also provided at the bottom of the groove 21, and the end of the protrusion is located on the plane where the side wall of the rolling element 2 is located, that is, the end of the protrusion can be offset against the welding position of the part 3 to be welded, and the protrusion corresponds to the position of the through hole 11. The welding laser can pass through the protrusion to the welding position of the part 3 to be welded. The setting of the protrusion can press down the welding position of the part 3 to be welded to prevent the part 3 to be welded from being deformed, and the heat and metal vapor generated during laser welding can be dissipated between the two sides of the protrusion and the side wall of the groove 21.

[0030] Reference Figure 3 As shown, in another embodiment, the diameter of the rolling element 2 gradually decreases from the middle to the end of the rolling element 2, that is, the two end positions of the rolling element 2 are arc-shaped, the middle position of the side wall of the rolling element 2 protrudes and abuts against the welding position of the part 3 to be welded, and the welding laser moves along the middle position of the rolling element 2 until the welding position of the part 3 to be welded, so that the heat and metal vapor generated during laser welding can be quickly dissipated from both sides of the protruding position of the side wall of the rolling element 2.

[0031] Reference Figure 4 and Figure 5As shown, the cleaning assembly 4 includes a connecting plate 42 and a cleaning member 41. The connecting plate 42 of the cleaning assembly 4 is connected to the side wall of the bracket 1. The cleaning member 41 can be regarded as a scraper. The blade end of the cleaning member 41 is the cleaning end. The cleaning member 41 is connected to the connecting plate 42, and the cleaning end of the cleaning member 41 can be abutted against the side wall of the rolling member 2. Specifically, the cleaning assembly 4 also includes a guide rod 43, a first baffle 46, a second baffle 48 and an elastic member 47. The guide rod 43 is slidably connected to the connecting plate 42. One end of the guide rod 43 is connected to an end of the cleaning member 41 away from the cleaning end, and the other end of the guide rod 43 is connected to the second baffle 48. The guide rod 43 is arranged to penetrate the connecting plate 42, and the second baffle 48 can be abutted against a side of the connecting plate 42 away from the cleaning member 41. The first baffle 46 is connected to a position on the guide rod 43 close to the cleaning member 41, that is, the guide rod 43 is arranged to penetrate the first baffle 46. The elastic member 47 can be regarded as a spring, one end of the elastic member 47 is against the first baffle 46, and the other end of the elastic member 47 is against the connecting plate 42. The setting of the first baffle 46 and the second baffle 48 can prevent the guide rod 43 from detaching from the connecting plate 42. When the cleaning member 41 is against the rolling member 2, the elastic member 47 has a buffering effect.

[0032] The cleaning assembly 4 also includes an adjusting member 44 and a third baffle 49. The guide rod 43 is slidably connected to the third baffle 49. The third baffle 49 can abut against the side of the first baffle 46 away from the connecting plate 42. The adjusting member 44 is threadedly connected to the connecting plate 42. One end of the adjusting member 44 is connected to the third baffle 49. The other end of the adjusting member 44 is connected to a connecting block 45. The connecting block 45 can abut against one end of the connecting plate 42 away from the cleaning member 41. The adjusting member 44 can be rotated by rotating the connecting block 45, thereby adjusting the position of the third baffle 49, and then adjusting the position of the cleaning member 41.

[0033] The bracket 1 is connected with a first driving member 5, which can be regarded as a motor. The output end of the first driving member 5 is connected to the connecting plate 42. Specifically, a mounting seat is connected to the side wall of the bracket 1, and the connecting plate 42 is rotatably connected to the mounting seat. The first driving member 5 is connected to the bracket 1, so that the first driving member 5 can drive the connecting plate 42 to rotate, and then adjust the position of the cleaning member 41. When the rolling member 2 needs to be cleaned, the first driving member 5 drives the cleaning member 41 to move until the cleaning member 41 and the rolling member 2 are against each other, and the rolling member 2 rolls at this time, so that the cleaning member 41 can scrape the impurities on the side wall of the rolling member 2. By adjusting the position of the third baffle 49, the elastic force of the elastic member 47 can be adjusted, and then the pressure between the cleaning member 41 and the rolling member 2 can be accurately adjusted to avoid the cleaning member 41 from damaging the side wall of the rolling member 2. Preferably, the cleaning assembly 4 can be symmetrically provided with two, so as to improve the cleaning efficiency of the rolling member 2 and also improve the cleanliness of the side wall of the rolling member 2.

[0034] When in use, the bracket 1 moves the rolling element 2 to the welding position of the part 3 to be welded, and the rolling element 2 presses down the welding position of the part 3 to be welded. The welding laser sequentially penetrates the through hole 11 and the rolling element 2 to weld the welding position of the part 3 to be welded. By moving the bracket 1, the welding laser continuously welds the welding position of the part 3 to be welded, and the rolling element 2 moves along the welding position of the part 3 to be welded, thereby continuously pressing down the welding position. When the rolling element 2 needs to be cleaned, the first driving element 5 drives the cleaning element 41 to move until the cleaning end of the cleaning element 41 abuts against the rolling element 2, and then the rolling element 2 rotates, so that the cleaning element 41 cleans the side wall of the rolling element 2.

[0035] Embodiment 2

[0036] The present invention also provides a laser welding device, comprising the material pressing device for laser welding in the first embodiment.

[0037] The laser welding equipment also includes a laser emitting element, a second driving element and a moving mechanism. The output end of the laser generating element corresponds to the position of the through hole 11 of the bracket 1, and the laser emitted by the laser generating element can be emitted along the central axis of the through hole 11 and penetrate the rolling element 2. The output end of the second driving element is connected to the bracket 1, and the second driving element is a linear driving element. The second driving element can adjust the position of the rolling element 2 and the pressure between the rolling element 2 and the part 3 to be welded. The moving assembly can drive the bracket 1 and the laser emitting element to move, so that the laser emitting element can move and continue welding, and the rolling element 2 can also roll on the part 3 to be welded to continuously press down the welding position.

[0038] The present invention provides a material pressing device and laser welding equipment for laser welding. Through the cooperation between the bracket 1 and the rolling element 2 and the light transmittance of the rolling element 2, the welding position can be pressed down during welding to prevent the welding position from being deformed or arched, keep the welding position flat, refine the internal components of the weld, and eliminate residual stress after welding. The rotatable setting of the rolling element 2 prevents sliding friction between the rolling element 2 and the welded part 3, avoids scratches on the surface of the welded part 3, prevents the position of the welded part 3 from moving due to excessive friction, and can flatten the position of the welded part that has residual heat and an uneven surface after welding. Through the setting of the cleaning component 4, the cleaning component 41 can clean impurities on the side wall of the rolling element 2.

[0039] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A material pressing device for laser welding, characterized in that: include: A bracket, wherein the bracket is provided with a through hole, and the through hole is used for the welding laser to pass through; A rolling member, the rolling member is rotatably connected to the bracket, the rolling member corresponds to the position of the through hole, and the rolling member is light-transmissive; A cleaning component is connected to the bracket, and the cleaning component includes a cleaning piece, and a cleaning end of the cleaning piece can be abutted against the rolling piece.

2. The material holding device for laser welding according to claim 1, characterized in that: The rolling element is provided with a groove along the circumferential direction, and the position of the groove corresponds to the position of the through hole.

3. The material pressing device for laser welding according to claim 2, characterized in that: An arc-shaped protrusion is provided at the bottom of the groove, and an end of the protrusion is located on the plane where the side wall of the rolling element is located.

4. The material holding device for laser welding according to claim 1, characterized in that: The diameter of the rolling element gradually decreases from the middle to the end of the rolling element.

5. The material holding device for laser welding according to claim 1, characterized in that: The bracket is provided with a receiving cavity, the rolling member is located in the receiving cavity, the through hole is communicated with the receiving cavity, a connecting member is provided at the end of the receiving cavity, and the rolling member is rotatably connected with the connecting member.

6. The material holding device for laser welding according to claim 1, characterized in that: The cleaning component also includes a connecting plate, the connecting plate is connected to the bracket, the cleaning piece is connected to the connecting plate, and the cleaning end of the cleaning piece can be abutted against the side wall of the rolling piece.

7. The material holding device for laser welding according to claim 6, characterized in that: The cleaning assembly also includes a guide rod, a first baffle, a second baffle and an elastic member, the guide rod is slidably connected to the connecting plate, one end of the guide rod is connected to the cleaning member, the other end of the guide rod is connected to the second baffle, the second baffle can be abutted against the connecting plate, the first baffle is connected to the guide rod, one end of the elastic member is abutted against the first baffle, and the other end of the elastic member is abutted against the connecting plate.

8. The material holding device for laser welding according to claim 7, characterized in that: The cleaning assembly also includes an adjusting member and a third baffle, the guide rod is slidably connected to the third baffle, the third baffle can be abutted against the first baffle, the adjusting member is threadedly connected to the connecting plate, and the end of the adjusting member is connected to the third baffle.

9. The material holding device for laser welding according to claim 6, characterized in that: The bracket is connected with a first driving member, and an output end of the first driving member is connected to the connecting plate.

10. A laser welding device, characterized in that: It comprises the material pressing device for laser welding as described in any one of claims 1 to 9.

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