Jig for laser welding

Abstract

The utility model relates to a jig for laser welding. The jig comprises a base; the pressing plate is clamped with the base, and a first clamping space is formed between the pressing plate and the base; the clamping assembly is connected with the side, away from the pressing plate, of the base and penetrates through the base, the connecting base is connected with the base, the shell is connected with the connecting base, a first opening is formed in the side, close to the pressing plate, of the shell, the shell comprises a containing cavity, a first clamping block and a first movable block are both located in the containing cavity, and the first clamping block is hinged to the shell; a first elastic piece is arranged between the first clamping block and the side wall of the containing cavity, a second clamping space is formed between the clamping end of the first clamping block and the side wall of the first opening, the connecting base is provided with a second opening, the first movable block is slidably connected with the shell, the first movable block can abut against the first clamping block, and the first movable block corresponds to the second opening in position. The jig for laser welding is convenient to operate, so that the feeding efficiency of parts is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture structure technology, and in particular to a fixture for laser welding. Background Technology

[0002] During the manufacturing process, the motherboard of a mobile phone requires laser welding to connect and fix components to the motherboard. Due to the small size of the components and the high precision required for welding, the motherboard and components must first be fixed to a fixture before welding. Components are typically clamped in the fixture. Because both the components and the clamping blocks are small, clamping the components requires pressing the clamping blocks with tools such as tweezers, placing the component into the clamping space, and then releasing the clamping blocks to complete the clamping. The limited clamping space and the need to simultaneously press the clamping blocks and place the component make the operation inconvenient, resulting in low component loading efficiency. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a laser welding fixture that is easy to operate, thereby improving the loading efficiency of parts.

[0004] To solve the above-mentioned technical problems, this utility model provides a laser welding fixture, comprising: a base; a pressure plate, the pressure plate being snapped into the base, the pressure plate and the base forming a first clamping space; and a clamping assembly, connected to and penetrating the base on the side away from the pressure plate, the clamping assembly including a connecting seat, a housing, a first clamping block, and a first movable block, the connecting seat being connected to the base, the housing being connected to the connecting seat, the housing having a first opening on the side near the pressure plate, the housing including a receiving cavity, the first clamping block and the first movable block both being located within the receiving cavity, the first clamping block being hinged to the housing, a first elastic element being provided between the first clamping block and the side wall of the receiving cavity, the clamping end of the first clamping block forming a second clamping space between the side wall of the first opening, the connecting seat having a second opening, the first movable block being slidably connected to the housing, the first movable block being able to abut against the first clamping block, and the first movable block corresponding to the position of the second opening.

[0005] In one embodiment of the present invention, the housing is connected to a guide block, the guide block is provided with a first sliding groove, the first movable block is slidably connected to the first sliding groove, and a second elastic element is provided between the ends of the first movable block and the first sliding groove.

[0006] In one embodiment of the present invention, a baffle is connected to the side of the guide block away from the pressure plate, and the first movable block includes a first protrusion that can abut against the baffle.

[0007] In one embodiment of the present invention, the first movable block further includes a second protrusion, which can abut against the first clamping block, and the movement of the first movable block can drive the first clamping block to rotate.

[0008] In one embodiment of this utility model, the connecting seat is connected to a third elastic element and a positioning post, the housing abuts against the third elastic element, the housing is provided with a positioning hole, and the positioning post is located in the positioning hole.

[0009] In one embodiment of this utility model, the pressure plate is provided with a second sliding groove, the second sliding groove is slidably connected to a movable plate, a fourth elastic element is provided between the movable plate and the side wall of the sliding groove, the movable plate is also provided with a first slot, the side wall of the first slot is provided with a locking block, the pressure plate is also connected to a cover plate, the cover plate is provided with a through hole, the through hole corresponds to the movement path of the first slot, the base is connected to a connecting column, the connecting column is provided with a second slot, the connecting column can be inserted into the through hole and the first slot, and the locking block can engage with the second slot.

[0010] In one embodiment of the present invention, a first stop, a second stop, a third stop, and a fourth stop are connected to the side of the base away from the clamping assembly, wherein the first stop and the second stop are arranged opposite to each other, the third stop and the fourth stop are arranged opposite to each other, and a third clamping space is formed between the first stop, the second stop, the third stop, and the fourth stop.

[0011] In one embodiment of the present invention, the base is further provided with a third slide groove and a fourth slide groove, the second stop block is slidably connected to the third slide groove, the fourth stop block is slidably connected to the fourth slide groove, a fifth elastic member is provided between the side of the second stop block away from the first stop block and the side wall of the third slide groove, and a sixth elastic member is provided between the side of the fourth stop block away from the third stop block and the side wall of the fourth slide groove.

[0012] In one embodiment of this utility model, the pressure plate is provided with a receiving groove on the side near the base that corresponds to the third clamping space.

[0013] In one embodiment of the present invention, the clamping assembly further includes a second clamping block, which is located within the receiving cavity and hinged to the housing, and the rotation axis of the second clamping block is perpendicular to the rotation axis of the first clamping block.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The laser welding fixture of this utility model, through the sliding connection between the first movable block and the housing, and the hinge connection between the first clamping block and the housing, allows the first clamping block to rotate by pressing the first movable block. Through the cooperation of the first clamping block and the first elastic element, the parts to be laser welded can be stably clamped. Thus, without the need for tools to occupy the second clamping space, the parts to be laser welded can be placed in the second clamping space and clamped. This facilitates operation and improves the loading efficiency of parts. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a laser welding fixture according to this utility model;

[0018] Figure 2 This is a structural diagram of the base;

[0019] Figure 3 This is a schematic diagram of the clamping assembly;

[0020] Figure 4 This is a schematic diagram of the shell structure;

[0021] Figure 5 This is a schematic diagram of the internal structure of the clamping component;

[0022] Figure 6 This is a structural diagram of the pressure plate;

[0023] Figure 7 This is a schematic diagram of the base from below;

[0024] Figure 8 This is a schematic diagram of the assembly structure of the first and second movable blocks.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Base; 2. Pressure plate; 3. Clamping assembly; 11. First stop; 12. Movable rod; 13. Second stop; 14. Connecting post; 15. Third stop; 16. Fourth stop; 17. Mounting block; 18. Mounting slot; 21. Receiving slot; 22. Cover plate; 23. Movable plate; 24. Locking block; 25. Fourth elastic element; 26. First locking slot; 27. Third locking slot; 31. Connecting seat; 32. 33. Positioning post; 34. Housing; 35. First opening; 36. Third elastic element; 37. First movable block; 38. First clamping block; 39. Second clamping block; 30. Second movable block; 311. Second opening; 312. Baffle; 331. Guide post; 332. Receiving cavity; 361. Guide block; 362. First protrusion; 363. Second protrusion; 364. Second elastic element; 371. First elastic element; 372. Connecting shaft. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] Reference Figures 1 to 5 As shown, a laser welding fixture of this utility model includes: a base 1; a pressure plate 2, which is snapped onto the base 1, forming a first clamping space between the pressure plate 2 and the base 1; and a clamping assembly 3, which is connected to the side of the base 1 away from the pressure plate 2 and passes through the base 1. The clamping assembly 3 includes a connecting seat 31, a housing 33, a first clamping block 37, and a first movable block 36. The connecting seat 31 is connected to the base 1, and the housing 33 is connected to the connecting seat 31. The housing 33 has a first opening 34 on the side near the pressure plate 2, and the housing 33 includes a receiving cavity 332. Both the first clamping block 37 and the first movable block 36 are located within the receiving cavity 332. The first clamping block 37 is hinged to the housing 33. A first elastic element 371 is provided between the first clamping block 37 and the side wall of the receiving cavity 332. The clamping end of the first clamping block 37 and the side wall of the first opening 34 form a second clamping space. The connecting seat 31 is provided with a second opening 311. The first movable block 36 is slidably connected to the housing 33. The first movable block 36 can abut against the first clamping block 37. The positions of the first movable block 36 and the second opening 311 correspond.

[0028] In this embodiment, a laser welding fixture presses down on a first movable block 36 through a second opening 311. After the first movable block 36 abuts against a first clamping block 37, the pressure on the first movable block 36 continues, causing the first clamping block 37 to rotate. The clamping end of the first clamping block 37 moves away from the side wall of the first opening 34. At this time, the first elastic element 371 is compressed, increasing the second clamping space. The part to be laser welded is placed into the second clamping space, and the pressure on the first movable block 36 is stopped. The first elastic element 371 then drives the first clamping block 37 to rotate, causing the first clamping block... The clamping end of the first clamping block 37 abuts against the part to be laser welded, thereby clamping the part to be laser welded between the clamping end of the first clamping block 37 and the side wall of the first opening 34. Then, the main board to be laser welded is placed on the base 1, and the pressure plate 2 abuts against the main board to be laser welded and is snapped into the base 1, so that the main board to be laser welded is clamped between the base 1 and the pressure plate 2. At the same time, the main board to be laser welded abuts against the part to be laser welded, thereby completing the clamping and fixing of the main board to be laser welded and the part to be laser welded. The external laser welding equipment can perform welding on the main board to be laser welded and the part to be laser welded through the second opening 311. Through the sliding connection between the first movable block 36 and the housing 33, and the hinge connection between the first clamping block 37 and the housing 33, the first clamping block 37 can be rotated by pressing the first movable block 36. Through the cooperation between the first clamping block 37 and the first elastic member 371, the parts to be laser-welded can be stably clamped. Thus, without the need for tools to occupy the second clamping space, the parts to be laser-welded can be placed in the second clamping space and the clamping of the parts to be laser-welded can be completed. This facilitates operation and improves the loading efficiency of parts.

[0029] Reference Figure 2 and Figure 6As shown, both the base 1 and the pressure plate 2 are flat. The pressure plate 2 is snapped into the base 1, and a first clamping space is formed between the pressure plate 2 and the base 1. The first clamping space is used to accommodate the motherboard to be laser-welded. Specifically, the bottom side of the pressure plate 2 is provided with four second sliding grooves. The second sliding grooves are located near the four included corners of the pressure plate 2. The second sliding grooves are slidably connected to a movable plate 23. A fourth elastic element 25 is provided between the end of the movable plate 23 away from the edge of the pressure plate 2 and the side wall of the sliding groove. The fourth elastic element 25 can be regarded as a spring. When the fourth elastic element 25 is in its natural state, the end of the movable plate 23 away from the fourth elastic element 25 is located outside the second sliding groove. The movable plate 23 is also provided with a first slot 26, and the side wall of the first slot 26 is provided with a protruding locking block 24. The pressure plate 2 is also connected to a cover plate 22. The movable plate 23 is located between the cover plate 22 and the pressure plate 2. The cover plate 22 is provided with a through hole, which corresponds to the movement path of the first slot 26. That is, by moving the movable plate 23, the through hole can be collinear with the center line of the first slot 26. The base 1 is connected with a connecting post 14, which is provided with a second slot. By pressing the end of the movable plate 23, the movable plate 23 is moved. When the through hole is collinear with the center line of the first slot 26, the connecting post 14 can be inserted into the through hole and the first slot 26. When the pressing of the movable plate 23 is stopped, the locking block 24 engages with the second slot. At this time, the base 1 and the pressure plate 2 are engaged and their positions are relatively fixed. The edge of the second slide groove is also provided with a third slot 27 corresponding to the position of the first slot 26. The third slot 27 and the first slot 26 together form a limiting groove. The dimensions of the end of the connecting post 14, the through hole and the limiting groove correspond to each other. The connecting post 14 is inserted into the through hole and the limiting groove. The setting of the third slot 27 makes the connection between the connecting post 14 and the movable plate 23 more stable.

[0030] The base 1, on the side away from the clamping assembly 3, is connected to a first stop 11, a second stop 13, a third stop 15, and a fourth stop 16. The first stop 11 and the second stop 13 are arranged opposite each other, as are the third stop 15 and the fourth stop 16. The line connecting the first stop 11 and the second stop 13 is perpendicular to the line connecting the third stop 15 and the fourth stop 16. The first stop 11, the second stop 13, the third stop 15, and the fourth stop 16 form a third clamping space, which is located within the first clamping space. The first stop 11, the second stop 13, the third stop 15, and the fourth stop 16 can abut against the four sides of the motherboard to be laser-welded, thereby fixing the position of the motherboard to be laser-welded. The base 1 is also provided with a third slide groove and a fourth slide groove. The second stop 13 is slidably connected to the third slide groove, and the fourth stop 16 is slidably connected to the fourth slide groove. A fifth elastic element is provided between the side of the second stop 13 away from the first stop 11 and the side wall of the third slide groove. A sixth elastic element is provided between the side of the fourth stop 16 away from the third stop 15 and the side wall of the fourth slide groove. Both the fifth and sixth elastic elements can be regarded as springs, so that the first stop 11, the second stop 13, the third stop 15, and the fourth stop 16 can clamp motherboards of different sizes to be laser-welded. The base 1 can also be detachably connected to a mounting block 17. The sixth elastic element is snapped between the mounting block 17 and the fourth stop 16. The mounting block 17 facilitates the removal and replacement of the sixth elastic element. A movable rod 12 is slidably connected to the side of the first stop 11 near the second stop 13. A spring is connected to the end of the movable rod 12, and the end of the spring abuts against the inside of the first stop 11. The movable rod 12 makes the clamping of the motherboard to be laser-welded more stable by the first stop 11 and the second stop 13. Preferably, the pressure plate 2 near the base 1 is provided with receiving grooves 21 corresponding to the third clamping space. The motherboard to be laser-welded can be engaged with the receiving grooves 21, thereby making the motherboard to be laser-welded more stable.

[0031] Reference Figures 3 to 5As shown, the clamping assembly 3 is used to clamp the parts to be laser welded. The clamping assembly 3 includes a connecting seat 31, a housing 33, a first clamping block 37, and a first movable block 36. The connecting seat 31 is connected to the base 1. The base 1 has a mounting groove 18 on the side away from the pressure plate 2, and the connecting seat 31 is located in the mounting groove 18. The housing 33 is connected to the connecting seat 31. The housing 33 has a first opening 34 on the side near the pressure plate 2, and the first opening 34 communicates with the first clamping space. The housing 33 includes a receiving cavity 332. The first clamping block 37 and the first movable block 36 are both located in the receiving cavity 332. The housing 33 is connected to a connecting shaft 372. The first clamping block 37 is rotatably connected to the connecting shaft 372, thereby hinged to the housing 33. A first elastic element 371 is provided between the first clamping block 37 and the side wall of the receiving cavity 332. The first elastic element 371 can be regarded as a spring. The clamping end of the first clamping block 37 and the side wall of the first opening 34 form a second clamping space. The second clamping space is used to accommodate the part to be laser welded. The first elastic element 371 can apply pressure to the first clamping block 37, so that the first clamping block 37 can stably clamp the part to be laser welded. A second opening 311 is provided on the side of the connecting seat 31 away from the pressure plate 2. The first movable block 36 is slidably connected to the housing 33. The first movable block 36 can abut against the first clamping block 37, so that the first movable block 36 can drive the first clamping block 37 to rotate. The first movable block 36 corresponds to the position of the second opening 311, so that the first movable block 36 can be pressed through the second opening 311.

[0032] Reference Figures 3 to 5 as well as Figure 7 and Figure 8As shown, specifically, the housing 33 is connected to a guide block 361, which has a first sliding groove. A first movable block 36 is slidably connected to the first sliding groove and can slide vertically. A second elastic element 364 is provided between the end of the first movable block 36 and the end of the first sliding groove. The end of the first sliding groove is sealed, meaning it is not connected to the outside. The second elastic element 364 can be considered a spring; after the first movable block 36 is stopped from being pressed, the second elastic element 364 can drive the first movable block 36 to return to its original position. A baffle 312 is connected to the side of the guide block 361 away from the pressure plate 2. The first movable block 36 includes a first protrusion 362, which can abut against the baffle 312, thereby preventing the first movable block 36 from disengaging from the first sliding groove. The first movable block 36 includes a second protrusion 363 extending towards the first clamping block 37. Movement of the first movable block 36 allows the second protrusion 363 to abut against the first clamping block 37, thereby causing the first clamping block 37 to rotate. This causes the clamping end of the first clamping block 37 to move away from the side wall of the first opening 34. At this time, the first elastic member 371 is compressed, increasing the second clamping space, allowing the part to be laser-welded to be placed into the second clamping space. The connecting seat 31 is also connected to multiple third elastic members 35 and multiple positioning pins 32. The third elastic members 35 can be considered as springs and are vertically arranged. The housing 33 abuts against the third elastic members 35 to prevent the housing 33 from shaking. The housing 33 has positioning holes, and the positioning pins 32 can be inserted into and positioned within the positioning holes, thereby positioning the housing 33 for installation. The first clamping block 37 also includes a clamping part located at the clamping end of the first clamping block 37. The clamping part can be configured in different shapes depending on the part to be laser-welded.

[0033] Preferably, the clamping assembly 3 further includes a second clamping block 38, which is located within the receiving cavity 332 and hinged to the housing 33. The rotation axis of the second clamping block 38 is perpendicular to the rotation axis of the clamping block, meaning that the first clamping block 37 and the second clamping block 38 can clamp the part to be laser-welded from different directions, thereby making the fixation of the part to be laser-welded more stable. The clamping assembly 3 also includes a second movable block 39, which can drive the second clamping block 38 to rotate. The second clamping block 38 and the first clamping block 37 differ only in the shape of the clamping portion at the clamping end. The assembly structure of the second clamping block 38 and the first clamping block 37 is the same, and the structure of the second movable block 39 driving the second clamping block 38 is the same as the structure of the first movable block 36 driving the first clamping block 37, which will not be described again. A guide post 331 is connected to the opposite side of the first opening 34. The guide post 331 can abut against the clamping end of the second clamping block 38, thereby limiting the movement range of the second clamping block 38. Depending on the location and quantity of the parts to be laser welded, the base 1 can be connected to multiple clamping components 3.

[0034] In use, an external fixture or tool is used to press the first movable block 36 and the second movable block 39 through the second opening 311 until the first clamping block 37 and the second clamping block 38 rotate. At this time, the first elastic element 371 is compressed, and the second clamping space increases. The part to be laser-welded is placed into the second clamping space, and the pressing of the first movable block 36 and the second movable block 39 is stopped. The first elastic element 371 drives the first clamping block 37 to rotate, and the other elastic element drives the second clamping block 38 to rotate, so that the part to be laser-welded is clamped at the clamping end of the first clamping block 37 and the second clamping block. Between the clamping end of 38 and the side wall of the first opening 34, the motherboard to be laser-welded is placed on the base 1, so that the first stop 11, the second stop 13, the third stop 15 and the fourth stop 16 clamp the motherboard to be laser-welded, the pressure plate 2 abuts against the motherboard to be laser-welded and is snapped into the base 1, so that the motherboard to be laser-welded is clamped between the base 1 and the pressure plate 2, and at the same time the motherboard to be laser-welded abuts against the part to be laser-welded, thereby completing the clamping and fixing of the motherboard to be laser-welded and the part to be laser-welded. The external laser welding equipment can perform welding on the motherboard to be laser-welded and the part to be laser-welded through the second opening 311.

[0035] This utility model discloses a laser welding fixture. Through the sliding connection between the first movable block 36 and the housing 33, and the hinge connection between the first clamping block 37 and the housing 33, the first clamping block 37 can be rotated by pressing the first movable block 36. Through the cooperation between the first clamping block 37 and the first elastic member 371, the parts to be laser welded can be stably clamped. Thus, without the need for tools to occupy the second clamping space, the parts to be laser welded can be placed in the second clamping space and the clamping of the parts to be laser welded can be completed. This facilitates operation and improves the loading efficiency of parts.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A jig for braze welding, characterized by comprising: include: Base; A pressure plate is engaged with the base, and a first clamping space is formed between the pressure plate and the base; A clamping assembly is connected to and passes through the base on the side away from the pressure plate. The clamping assembly includes a connecting seat, a housing, a first clamping block, and a first movable block. The connecting seat is connected to the base, and the housing is connected to the connecting seat. The housing has a first opening on the side near the pressure plate. The housing includes a receiving cavity. The first clamping block and the first movable block are both located in the receiving cavity. The first clamping block is hinged to the housing. A first elastic element is provided between the first clamping block and the side wall of the receiving cavity. A second clamping space is formed between the clamping end of the first clamping block and the side wall of the first opening. The connecting seat has a second opening. The first movable block is slidably connected to the housing. The first movable block can abut against the first clamping block. The position of the first movable block corresponds to the position of the second opening.

2. The jig for radium welding according to claim 1, characterized by: The housing is connected to a guide block, the guide block is provided with a first sliding groove, the first movable block is slidably connected to the first sliding groove, and a second elastic element is provided between the ends of the first movable block and the first sliding groove.

3. The jig for rad welding according to claim 2, characterized by: The guide block is connected to a baffle on the side away from the pressure plate, and the first movable block includes a first protrusion that can abut against the baffle.

4. The jig for rad welding according to claim 1, characterized by: The first movable block further includes a second protrusion, which can abut against the first clamping block, and the movement of the first movable block can drive the first clamping block to rotate.

5. The jig for rad welding according to claim 1, characterized by: The connecting seat is connected to a third elastic element and a positioning post. The housing abuts against the third elastic element. The housing is provided with a positioning hole, and the positioning post is located in the positioning hole.

6. The jig for rad welding according to claim 1, characterized by: The pressure plate is provided with a second sliding groove, and a movable plate is slidably connected to the second sliding groove. A fourth elastic element is provided between the movable plate and the side wall of the sliding groove. The movable plate is also provided with a first slot, and a locking block is provided on the side wall of the first slot. The pressure plate is also connected with a cover plate, and the cover plate is provided with a through hole. The through hole corresponds to the movement path of the first slot. The base is connected with a connecting column, and the connecting column is provided with a second slot. The connecting column can be inserted into the through hole and the first slot, and the locking block can engage with the second slot.

7. The laser welding fixture according to claim 1, characterized in that: The base is connected to a first stop, a second stop, a third stop, and a fourth stop on the side away from the clamping assembly. The first stop and the second stop are arranged opposite each other, and the third stop and the fourth stop are arranged opposite each other. The first stop, the second stop, the third stop, and the fourth stop together form a third clamping space.

8. The laser welding fixture according to claim 7, characterized in that: The base is also provided with a third slide groove and a fourth slide groove. The second stop block is slidably connected to the third slide groove, and the fourth stop block is slidably connected to the fourth slide groove. A fifth elastic member is provided between the side of the second stop block away from the first stop block and the side wall of the third slide groove, and a sixth elastic member is provided between the side of the fourth stop block away from the third stop block and the side wall of the fourth slide groove.

9. The laser welding fixture according to claim 7, characterized in that: The pressure plate has a receiving groove on the side near the base that corresponds to the third clamping space.

10. The laser welding fixture according to claim 1, characterized in that: The clamping assembly further includes a second clamping block, which is located within the receiving cavity and hinged to the housing, and the rotation axis of the second clamping block is perpendicular to the rotation axis of the first clamping block.

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