Circuit board welding fixing clamp

Abstract

The utility model discloses a circuit board welding fixing clamp, and relates to the technical field of circuit board processing. The device comprises a workbench, a reserved opening is formed in the upper side of the workbench, an extension block is fixedly connected to the upper side of the workbench, a linkage rod is rotationally matched with the extension block, one end of the linkage rod is fixedly connected with a U-shaped clamping frame, and a clamping mechanism is arranged on the inner wall of the U-shaped clamping frame; the other end of the linkage rod is fixedly connected with a gear, and a toothed plate meshed with the gear is arranged on the upper side of the workbench in a sliding fit mode. By arranging the U-shaped clamping frame, the clamping mechanism, the gear and the toothed plate, the circuit board can be clamped and fixed through the clamping mechanism, when turning over is needed, the toothed plate can be pulled to drive the gear to rotate, and then the gear drives the linkage rod and the U-shaped clamping frame to turn over, so that quick turning over operation on the clamped circuit board is achieved, and the circuit board is convenient to use. And the complicated process of disassembly and assembly is avoided, so that the processing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board processing, and specifically relates to a circuit board welding and fixing fixture. Background Art

[0002] Circuit board welding is a key step in electronic manufacturing, which involves fixing electronic components on a printed circuit board (PCB) through welding. The quality of welding directly affects the performance and reliability of the circuit board. During the welding process, fixtures are usually used to fix the circuit board to maintain its stability and accuracy.

[0003] Chinese Patent with application number CN202322095724.6 discloses a fixing fixture for circuit board welding, including a fixing mechanism, a support structure, a workbench, a clamping device, a magnifying device and an extending device. The fixing mechanism includes a fixing column, a fixing rod, a screw hole and a screw. A fixing rod is arranged at the top of the fixing column. Screw holes are arranged at both ends of the top of the fixing rod. The fixing column is in threaded connection with the fixing rod. The support structure includes a support rod. One end of the support rod is fixedly connected to one end of the fixing rod close to each other. The bottom of the workbench is fixedly connected to the fixing rod. A small hole is opened on the left side of the workbench. The clamping device includes a rotating wheel, a nut, a first gripper, a second gripper and a clamping block. The left side of the nut is fixedly connected to the middle of one side of the rotating wheel. The bottom of the extension tube is fixedly connected to the fixing rod.

[0004] The above prior art is beneficial to fixing the circuit board by setting the clamping device. When welding circuit boards of different sizes, it is not necessary to replace fixing fixtures of different sizes. However, in the actual use process, when welding a double-sided board, since the design of the double-sided board includes two layers of wiring and components can be installed on both sides of the PCB, the welding board needs to be turned over during welding. During the turning process, it is necessary to disassemble and reassemble the fixture, which increases additional working steps, reduces production efficiency and increases labor intensity.

[0005] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0006] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a circuit board welding and fixing fixture.

[0007] The basic concept of the technical solution adopted by the present utility model to solve the above technical problem is as follows:

[0008] A circuit board welding and fixing fixture includes a workbench. A reserved opening is provided on the upper side of the workbench. An extension block is fixedly connected to the upper side of the workbench. A linkage rod is rotatably fitted on the extension block. One end of the linkage rod is fixedly connected to a U-shaped clamping frame. A clamping mechanism is arranged on the inner wall of the U-shaped clamping frame.

[0009] The other end of the linkage rod is fixedly connected with a gear. A toothed plate meshing with the gear is slidably fitted on the upper side of the workbench. A linkage port is formed on one side of the toothed plate. A plug is slidably fitted on the inner wall of the linkage port. A tension spring is arranged between the plug and the toothed plate. A positioning plate is fixedly connected to the upper side of the workbench. A positioning hole matching with the plug is formed on one side of the positioning plate. A reinforcing component matching with the U-shaped clamping frame is arranged on the upper side of the workbench.

[0010] Optionally, in order to facilitate the clamping and fixing of the circuit board, the clamping mechanism includes a threaded hole formed on one side of the inner wall of the U-shaped clamping frame, a threaded rod threadedly fitted on the inner wall of the threaded hole, a tightening plate rotatably fitted at one end of the threaded rod and slidably fitted on the inner wall of the U-shaped clamping frame, and a clamping frame fixedly connected to the other side of the inner wall of the U-shaped clamping frame and one side of the tightening plate.

[0011] Optionally, in order to improve the stability of the U-shaped clamping frame during welding, the reinforcing component includes a moving groove formed on the upper side of the workbench, a moving block slidably fitted on the inner wall of the moving groove, and a supporting frame fixedly connected to one side of the moving block.

[0012] Optionally, for the convenience of fixing the whole, two mounting plates are fixedly connected to both sides of the workbench, and fixing pins are formed on the upper sides of the two mounting plates.

[0013] Optionally, in order to improve the protection of the circuit board during clamping, buffer pads are fixedly connected to the adjacent sides of the two clamping frames, and the two buffer pads are adhesively bonded to the clamping frames.

[0014] Optionally, in order to facilitate the guiding of the tightening plate, a guiding groove is formed on one side of the inner wall of the U-shaped clamping frame, and a guiding block fixedly connected to the tightening plate is slidably fitted on the inner wall of the guiding groove.

[0015] Optionally, in order to improve the stability of the movement of the toothed plate, a movable groove is fixedly connected to the upper side of the workbench, and a movable block slidably fitted with the movable groove is fixedly connected to the lower side of the toothed plate.

[0016] Optionally, in order to facilitate the operation of the threaded rod, a knob is fixedly connected to the other end of the threaded rod, and a plurality of anti-slip grooves are formed on the knob.

[0017] After adopting the above technical solutions, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below at the same time:

[0018] 1. The utility model realizes the clamping and fixing of the circuit board through the clamping mechanism by setting a U-shaped clamping frame, a clamping mechanism, a gear and a toothed plate. When turning over is needed, the toothed plate can be pulled to drive the gear to rotate, and then the gear drives the linkage rod and the U-shaped clamping frame to turn over, so as to realize the rapid turning-over operation of the clamped circuit board, avoid the complex process of disassembly and assembly, and improve the processing efficiency.

[0019] 2. By setting a reinforcement component, the utility model can, after fixing the circuit board, push the moving block to slide in the moving groove, and push the abutting frame to extrude the lower side of the U-shaped clamping frame, so as to fix the other end of the U-shaped clamping frame and improve the stability during use.

[0020] The following further describes in detail the specific implementation manners of the utility model with reference to the drawings. Description of the Drawings

[0021] The following drawings are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0022] Figure 1 is the overall three-dimensional structure schematic diagram of an embodiment of the utility model;

[0023] Figure 2 is the side three-dimensional structure schematic diagram of an embodiment of the utility model;

[0024] Figure 3 is an embodiment of the utility model Figure 2 magnified structure schematic diagram at A in;

[0025] Figure 4 is the overall three-dimensional sectional structure schematic diagram of an embodiment of the utility model;

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Workbench; 2. Reserved opening; 3. Extension block; 4. Linkage rod; 5. U-shaped clamping frame; 6. Clamping mechanism; 601. Threaded hole; 602. Threaded rod; 603. Tightening plate; 604. Clamping frame; 7. Gear; 8. Toothed plate; 9. Linkage port; 10. Plug pin; 11. Tension spring; 12. Positioning plate; 13. Positioning hole; 14. Reinforcement component; 141. Moving groove; 142. Moving block; 143. Abutting frame; 15. Mounting plate; 16. Fixed pin; 17. Buffer pad; 18. Guide groove; 19. Guide block; 20. Moving groove; 21. Moving block; 22. Rotary knob.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0029] Now, the present utility model will be further described in detail with reference to the drawings.

[0030] Please refer to Figures 1-4 As shown, in this embodiment, a circuit board welding and fixing fixture is provided, which includes a workbench 1. A reserved opening 2 is formed on the upper side of the workbench 1. An extension block 3 is fixedly connected to the upper side of the workbench 1. A linkage rod 4 is rotatably fitted on the extension block 3. One end of the linkage rod 4 is fixedly connected to a U-shaped clamping frame 5. A clamping mechanism 6 is arranged on the inner wall of the U-shaped clamping frame 5. The width of the U-shaped clamping frame 5 is smaller than the width of the reserved opening 2.

[0031] The other end of the linkage rod 4 is fixedly connected to a gear 7. A toothed plate 8 meshing with the gear 7 is slidably fitted on the upper side of the workbench 1. A linkage opening 9 is formed on one side of the toothed plate 8. A plug pin 10 is slidably fitted on the inner wall of the linkage opening 9. A tension spring 11 is arranged between the plug pin 10 and the toothed plate 8. A positioning plate 12 is fixedly connected to the upper side of the workbench 1. A positioning hole 13 matching with the plug pin 10 is formed on one side of the positioning plate 12. A reinforcing component 14 matching with the U-shaped clamping frame 5 is arranged on the upper side of the workbench 1.

[0032] Please refer to Figure 1 , the clamping mechanism 6 includes a threaded hole 601 formed on one side of the inner wall of the U-shaped clamping frame 5, a threaded rod 602 threadedly fitted on the inner wall of the threaded hole 601, a tightening plate 603 rotatably fitted at one end of the threaded rod 602 and slidably fitted on the inner wall of the U-shaped clamping frame 5, and a clamping frame 604 fixedly connected to the other side of the inner wall of the U-shaped clamping frame 5 and one side of the tightening plate 603. By rotating the threaded rod 602 in the threaded hole 601, the threaded rod 602 moves along with it, thereby pushing the tightening plate 603 and the clamping frame 604 fixed on the upper side to move, so as to realize tightening and clamping of the circuit board.

[0033] Please refer to Figure 2 and Figure 4 , the reinforcing component 14 includes a moving groove 141 formed on the upper side of the workbench 1, a moving block 142 slidably fitted on the inner wall of the moving groove 141, and a supporting frame 143 fixedly connected to one side of the moving block 142. During the processing, by pushing the moving block 142 to move in the moving groove 141, the supporting frame 143 abuts against the lower side of the other end of the U-shaped clamping frame 5, so as to realize reinforcement of the other end of the U-shaped clamping frame 5 and improve the stability during welding.

[0034] Please refer to Figure 2, on both sides of the workbench 1, there are two fixed mounting plates 15. Fixed pins 16 are provided on the upper sides of the two mounting plates 15. By passing the corresponding plug-in parts through the fixed pins 16, the fixation of materials can be achieved.

[0035] Please refer to Figure 2 , on the adjacent sides of the two clamping frames 604, there are two buffer pads 17 fixedly connected. The two buffer pads 17 are adhesively bonded to the clamping frames 604. After the two clamping frames 604 clamp the circuit board, with the buffer pads 17 in between, it can protect the circuit board during the clamping process.

[0036] Please refer to Figure 2 , on one side of the inner wall of the U-shaped clamping frame 5, there is a guide groove 18. A guide block 19 fixedly connected to the tightening plate 603 is slidably fitted in the inner wall of the guide groove 18. When the tightening plate 603 moves, by the movement of the guide block 19 in the guide groove 18, the stability of the movement of the tightening plate 603 can be improved.

[0037] Please refer to Figure 3 , on the upper side of the workbench 1, there is a movable groove 20 fixedly connected. On the lower side of the toothed plate 8, there is a movable block 21 slidably fitted with the movable groove 20. When the toothed plate 8 moves, the movable block 21 moves in the movable groove 20, which can play a role in restricting the toothed plate 8.

[0038] Please refer to Figure 1 , at the other end of the threaded rod 602, there is a knob 22 fixedly connected. A plurality of anti-slip grooves are provided on the knob 22. The knob 22 is convenient for moving the threaded rod 602, and the provided anti-slip grooves are used to increase the friction when operating the knob 22.

[0039] The implementation principle of a circuit board welding and fixing fixture in an embodiment of the present application is as follows: When in use, first, place the circuit board to be fixed into the interior of the two clamping frames 604. By rotating the threaded rod 602 to rotate in the threaded hole 601, the tightening plate 603 is pushed to drive the corresponding clamping frame 604 to move closer to the other one, realizing the clamping and fixing of both ends of the circuit board. After fixation, by pushing the moving block 142 to slide in the moving groove 141, the abutting frame 143 is pushed to squeeze the lower side of the U-shaped clamping frame 5, so as to fix the other end of the U-shaped clamping frame 5, improving the stability during use;

[0040] During the welding process, if both sides need to be processed, one hand can pull out the reinforcement component 14, and the other hand can pull the bolt 10 to separate the bolt 10 from one of the positioning holes 13 on the positioning plate 12. Then, pull the toothed plate 8 to move towards one side. During the movement, the toothed plate 8 will rotate the gear 7, causing the gear 7 to drive the linkage rod 4 and the U-shaped clamping frame 5 to flip, so that the circuit board after clamping can be turned over with one pull and one slide. Compared with disassembling the circuit board and turning it over for re-clamping, the processing efficiency is improved;

[0041] When turning over, by loosening the bolt 10, under the pulling action of the tension spring 11, the bolt 10 is inserted into another positioning hole 13 for fixation, and the other hand pushes the reinforcement component 14 to fix the other end of the U-shaped clamping frame 5.

[0042] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A circuit board welding and fixing fixture, characterized in that, Including: A workbench (1), a reserved opening (2) is provided on the upper side of the workbench (1), an extension block (3) is fixedly connected to the upper side of the workbench (1), a linkage rod (4) is rotatably fitted on the extension block (3), one end of the linkage rod (4) is fixedly connected to a U-shaped clamping frame (5), and a clamping mechanism (6) is arranged on the inner wall of the U-shaped clamping frame (5); The other end of the linkage rod (4) is fixedly connected to a gear (7), a toothed plate (8) meshing with the gear (7) is slidably fitted on the upper side of the workbench (1), a linkage opening (9) is provided on one side of the toothed plate (8), a plug pin (10) is slidably fitted on the inner wall of the linkage opening (9), a tension spring (11) is arranged between the plug pin (10) and the toothed plate (8), a positioning plate (12) is fixedly connected to the upper side of the workbench (1), a positioning hole (13) matching with the plug pin (10) is provided on one side of the positioning plate (12), and a reinforcing component (14) matching with the U-shaped clamping frame (5) is arranged on the upper side of the workbench (1).

2. The circuit board welding and fixing fixture according to claim 1, wherein, The clamping mechanism (6) includes a threaded hole (601) provided on one side of the inner wall of the U-shaped clamping frame (5), a threaded rod (602) threadedly fitted on the inner wall of the threaded hole (601), a tightening plate (603) rotatably fitted at one end of the threaded rod (602) and slidably fitted on the inner wall of the U-shaped clamping frame (5), and a clamping frame (604) fixedly connected to the other side of the inner wall of the U-shaped clamping frame (5) and one side of the tightening plate (603).

3. A circuit board welding and fixing jig according to claim 1, characterized in that, The reinforcing component (14) includes a moving groove (141) provided on the upper side of the workbench (1), a moving block (142) slidably fitted on the inner wall of the moving groove (141), and a resisting frame (143) fixedly connected to one side of the moving block (142).

4. A circuit board welding and fixing fixture according to claim 1, characterized in that, Two mounting plates (15) are fixedly connected to both sides of the workbench (1), and fixing pins (16) are provided on the upper sides of the two mounting plates (15).

5. The circuit board welding and fixing jig according to claim 2, wherein Buffer pads (17) are fixedly connected to the adjacent sides of the two clamping frames (604), and the two buffer pads (17) are adhesively bonded to the clamping frames (604).

6. The circuit board welding and fixing jig according to claim 2, characterized in that, A guiding groove (18) is provided on one side of the inner wall of the U-shaped clamping frame (5), and a guiding block (19) fixedly connected to the tightening plate (603) is slidably fitted on the inner wall of the guiding groove (18).

7. The wire bonding and fixing jig according to claim 1, wherein A moving groove (20) is fixedly connected to the upper side of the workbench (1), and a moving block (21) slidably fitted with the moving groove (20) is fixedly connected to the lower side of the toothed plate (8).

8. The wire board soldering and fixing jig according to claim 2, characterized in that, The other end of the threaded rod (602) is fixedly connected to a turning knob (22), and a plurality of anti-slip grooves are provided on the turning knob (22).

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