Circuit board soldering fixture

Abstract

This utility model discloses a circuit board soldering fixture, belonging to the field of soldering fixtures. It includes a fixture plate, a gas absorption box at the bottom of which is provided. An outlet pipe is provided on one side of the gas absorption box, with one end connected to the interior of the gas absorption box. A movable groove is formed inside the outlet pipe, which is slidably connected to a movable plate via the movable groove. A support plate is fixedly connected inside the movable plate, and an activated carbon filter plate is provided on the top of the support plate. This circuit board soldering fixture, by incorporating a gas absorption box, an outlet pipe, a movable plate, a support plate, an activated carbon filter plate, and a negative pressure unit, can filter toxic gases generated during soldering, thus preventing workers from inhaling excessive amounts of toxic gases during soldering and potentially harming their health. It also facilitates quick replacement of the activated carbon filter plate, ensuring its filtration effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of soldering fixture technology, specifically circuit board soldering fixtures. Background Technology

[0002] A circuit board, also known as a printed circuit board, is composed of integrated circuits, quartz oscillators, trimmer capacitors, and printed circuit boards. Circuit boards miniaturize and visualize circuits, playing a crucial role in the mass production of fixed circuits and optimizing the layout of electrical appliances. In electronic devices, they are primarily used to connect various electronic components and act as structural supports. Fixtures, on the other hand, are a broad category of tools used in woodworking, metalworking, fitting, mechanics, electrical control, and other handicrafts. They are mainly used to assist in controlling position or movement. Fixtures can be categorized into three types: process assembly fixtures, project testing fixtures, and circuit board testing fixtures. When connecting circuits on a circuit board, the nodes need to be connected and fixed with solder, also known as soldering. During soldering, fixtures are used to limit and fix the circuit board, facilitating the soldering work.

[0003] Existing soldering fixtures generate a large amount of toxic gas during high-temperature soldering of circuit boards. Workers inhale a large amount of toxic gas during prolonged soldering operations, which can negatively impact their health. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This utility model provides a circuit board soldering fixture, which aims to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a circuit board soldering fixture, including a fixture plate, a gas absorption box at the bottom of the fixture plate, an outlet pipe on one side of the gas absorption box, one end of the outlet pipe communicating with the interior of the gas absorption box, a movable groove inside the outlet pipe, the outlet pipe being slidably connected to a movable plate through the movable groove, a support plate fixedly connected inside the movable plate, an activated carbon filter plate at the top of the support plate, one end of the outlet pipe communicating with a suction pipe, the other end of the suction pipe being connected to the output end of a negative pressure machine, an mounting plate fixedly connected to the outer wall of the negative pressure machine, and the mounting plate being fixedly connected to the bottom of the fixture plate.

[0008] As a preferred technical solution of this application, the bottom of the inner wall of the fixture plate is provided with two first sliding grooves and two second sliding grooves. The inner walls of the first sliding grooves and the inner walls of the second sliding grooves are slidably connected to sliders. The outer walls of the sliders, the inner walls of the first sliding grooves and the inner walls of the second sliding grooves are all polished.

[0009] As a preferred technical solution of this application, an L-shaped plate is fixedly connected to the top of the slider, an elastic telescopic rod is fixedly connected to the top of the inner wall of the L-shaped plate, a clamping plate is provided at the bottom of the elastic telescopic rod, and a pressing protrusion is provided at the bottom of the clamping plate.

[0010] As a preferred technical solution of this application, the bottom of the inner wall of the fixture plate is provided with three heat dissipation grooves, the fixture plate is detachably installed with the heat dissipation plate through the heat dissipation grooves, and the gas absorption box is provided with a heat exchange plate inside.

[0011] As a preferred technical solution of this application, a duct is provided on one side of the gas absorption box, and a cooling fan is fixedly connected to one side of the gas absorption box.

[0012] As a preferred technical solution of this application, a piston rod is fixedly connected to the side of the movable plate near the gas absorption box, and a piston cylinder is fixedly connected to the side of the gas absorption box near the movable plate. The outer wall of the piston rod is slidably connected to the inner wall of the piston cylinder. A spring is fixedly connected to one end of the inner wall of the piston cylinder, and the other end of the spring is connected to the corresponding end of the piston rod.

[0013] As a preferred technical solution of this application, a pull rod is fixedly connected to the side of the movable plate away from the gas absorption box, and the outer wall of the pull rod is provided with an anti-slip groove.

[0014] As a preferred technical solution of this application, a filter screen is provided inside the air outlet pipe, and one end of the filter screen is flush with the corresponding end of the air outlet pipe.

[0015] (III) Beneficial Effects

[0016] 1. This circuit board soldering fixture, by setting up a gas absorption box, gas outlet pipe, moving plate, support plate, activated carbon filter plate and negative pressure machine, can filter the toxic gases generated during soldering, thereby preventing workers from inhaling too much toxic gas during soldering and thus affecting their health. At the same time, it facilitates quick replacement of the activated carbon filter plate to ensure the filtration effect of the activated carbon filter plate.

[0017] 2. This circuit board soldering fixture, through the interaction of a sliding groove, a first slider, and a second slider, allows for adjustment of the position of the clamping plate. This enables the soldering fixture to clamp and fix circuit boards of different sizes, improving its applicability. Furthermore, through the interaction of the elastic telescopic rod and the clamping plate, the elastic force of the telescopic rod abuts against the clamping plate, thereby abutting the circuit board and quickly fixing it, ensuring the stability of the circuit board soldering. Attached Figure Description

[0018] Figure 1 A schematic diagram of a circuit board soldering fixture;

[0019] Figure 2 A three-dimensional structural diagram of a heat dissipation fan in a circuit board soldering fixture;

[0020] Figure 3 A three-dimensional structural diagram of the gas absorption box in a circuit board soldering fixture;

[0021] Figure 4 A schematic diagram of the structure of an explosion of an activated carbon filter plate in a circuit board soldering fixture;

[0022] Figure 5 A frontal cross-sectional view of the piston cylinder in a circuit board soldering fixture;

[0023] Figure 6 This is a frontal view of the elastic telescopic rod in a circuit board soldering fixture.

[0024] In the picture:

[0025] 1. Fixture plate; 2. Gas absorption box; 3. Gas outlet pipe; 4. Moving groove; 5. Moving plate; 6. Support plate; 7. Activated carbon filter plate; 8. Suction pipe; 9. Negative pressure unit; 10. First slide groove; 11. Second slide groove; 12. Slider; 13. L-shaped plate; 14. Elastic telescopic rod; 15. Clamping plate; 16. Heat dissipation plate; 17. Air duct; 18. Cooling fan; 19. Piston cylinder; 20. Piston rod; 21. Spring; 22. Pull rod; 23. Mounting plate; 24. Filter screen; 25. Heat exchange plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-6As shown, this utility model provides a circuit board soldering fixture, including a fixture plate 1. A gas absorption box 2 is provided at the bottom of the fixture plate 1. An outlet pipe 3 is provided on one side of the gas absorption box 2. One end of the outlet pipe 3 is connected to the interior of the gas absorption box 2. A movable groove 4 is provided inside the outlet pipe 3. The outlet pipe 3 is slidably connected to a movable plate 5 through the movable groove 4. A support plate 6 is fixedly connected inside the movable plate 5. An activated carbon filter plate 7 is provided on the top of the support plate 6. One end of the outlet pipe 3 is connected to a suction pipe 8. The other end of the suction pipe 8 is connected to the output end of a negative pressure machine 9. An mounting plate 23 is fixedly connected to the outer wall of the negative pressure machine 9. The mounting plate 23 is fixedly connected to the bottom of the fixture plate 1.

[0028] The bottom of the inner wall of the fixture plate 1 has two first sliding grooves 10 and two second sliding grooves 11. The inner walls of the first sliding grooves 10 and the inner walls of the second sliding grooves 11 are slidably connected to sliders 12. The outer walls of the sliders 12, the inner walls of the first sliding grooves 10 and the inner walls of the second sliding grooves 11 are all polished. By setting the sliding grooves and the cooperation of the first sliders 12 and the second sliders 12, the position of the clamping plate 15 can be adjusted, so that the soldering fixture can clamp and fix circuit boards of different sizes, thus improving the applicability of the soldering fixture.

[0029] An L-shaped plate 13 is fixedly connected to the top of the slider 12. An elastic telescopic rod 14 is fixedly connected to the top of the inner wall of the L-shaped plate 13. A clamping plate 15 is provided at the bottom end of the elastic telescopic rod 14. Pressing protrusions are provided at the bottom of the clamping plate 15. Through the cooperation of the elastic telescopic rod 14 and the clamping plate 15, the elastic force of the elastic telescopic rod 14 can abut against the clamping plate 15, thereby abutting the circuit board through the clamping plate 15. The circuit board can be quickly fixed, ensuring the stability of the circuit board soldering.

[0030] The bottom of the inner wall of the fixture plate 1 is provided with three heat dissipation slots. The fixture plate 1 can be detachably installed with the heat dissipation plate 16 through the heat dissipation slots. The gas absorption box 2 is provided with a heat exchange plate 25 inside. A duct 17 is provided on one side of the gas absorption box 2. A cooling fan 18 is fixedly connected to one side of the gas absorption box 2. By setting up the heat dissipation plate 16, the duct 17 and the heat exchange plate 25, the airflow generated by the cooling fan 18 will interact with the airflow generated by the soldering work during use, thereby cooling the hot air generated by the soldering work, and the hot air will be discharged from the gas absorption box 2 through the heat exchange plate 25, thereby achieving a rapid cooling effect.

[0031] A piston rod 20 is fixedly connected to the side of the movable plate 5 near the gas absorption box 2, and a piston cylinder 19 is fixedly connected to the side of the gas absorption box 2 near the movable plate 5. The outer wall of the piston rod 20 is slidably connected to the inner wall of the piston cylinder 19. A spring 21 is fixedly connected to one end of the inner wall of the piston cylinder 19, and the other end of the spring 21 is connected to the corresponding end of the piston rod 20. By setting up the piston rod 20, piston cylinder 19 and spring 21, when the movable plate 5 moves out of the gas outlet pipe 3, it will pull the piston rod 20 to move, thereby stretching the spring 21. After the new activated carbon filter plate 7 is placed, when the movable plate 5 is released, the elastic force of the spring 21 will quickly send the movable plate 5 into the gas outlet pipe 3 to reset, thereby improving the efficiency of replacing the activated carbon filter plate 7.

[0032] A pull rod 22 is fixedly connected to the side of the movable plate 5 away from the gas absorption box 2. The outer wall of the pull rod 22 is provided with anti-slip grooves. By setting the anti-slip grooves, the situation of slipping and falling off during the process of pulling the pull rod 22 can be avoided.

[0033] The outlet pipe 3 is equipped with a filter screen 24. One end of the filter screen 24 is flush with the corresponding end of the outlet pipe 3. By setting the filter screen 24, it can work with the activated carbon filter plate 7 to perform secondary filtration of the gas, ensuring the gas filtration effect.

[0034] Working principle:

[0035] In use, the operator places the circuit board inside the fixture plate 1, and then moves the corresponding slider 12 through the first slide groove 10 and the second slide groove 11, so that the slider 12 drives the L-shaped plate 13 to move, thereby driving the elastic telescopic rod 14 and the clamping plate 15 to move. Then, the elastic telescopic rod 14 is pressed, so that the elastic telescopic rod 14 retracts and drives the clamping plate 15 to move upward. When the L-shaped plate 13 is located directly above the circuit board, the elastic telescopic rod 14 is released, so that the elastic telescopic rod 14 drives the clamping plate 15 to press down through the elastic force. During the pressing down process, the top of the circuit board can be fixed.

[0036] Next, the circuit board is soldered. At the same time, the cooling fan 18 and the negative pressure machine 9 are started. The airflow generated by the cooling fan 18 interacts with the hot air generated by the soldering, thereby cooling the hot air from the soldering. The cooling airflow acts on the bottom of the circuit board for heat dissipation. The negative pressure machine 9 absorbs the gas generated during soldering, so that the gas flows into the exhaust pipe 3 through the heat sink 16 and the gas absorption box 2, and is discharged outward through the exhaust pipe 3. However, as the gas passes through the exhaust pipe 3, it is filtered by the activated carbon filter plate 7 and the filter screen 24, thereby filtering out the toxic gases in the gas. When the activated carbon filter plate 7 needs to be replaced, the pull rod 22 is pulled, so that the pull rod 22 moves the moving plate 5, which can be removed from the exhaust pipe 3. Then, the used activated carbon filter plate 7 is removed from the support plate 6, and then a new activated carbon filter plate 7 is placed.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circuit board soldering fixture, comprising a fixture board (1), characterized in that: A gas absorption box (2) is provided at the bottom of the fixture plate (1). An outlet pipe (3) is provided on one side of the gas absorption box (2). One end of the outlet pipe (3) is connected to the inside of the gas absorption box (2). A moving groove (4) is provided inside the outlet pipe (3). The outlet pipe (3) is slidably connected to the moving plate (5) through the moving groove (4). A support plate (6) is fixedly connected inside the moving plate (5). An activated carbon filter plate (7) is provided on the top of the support plate (6). One end of the outlet pipe (3) is connected to the suction pipe (8). The other end of the suction pipe (8) is connected to the output end of the negative pressure machine (9). An mounting plate (23) is fixedly connected to the outer wall of the negative pressure machine (9). The mounting plate (23) is fixedly connected to the bottom of the fixture plate (1).

2. The circuit board soldering fixture according to claim 1, characterized in that: The bottom of the inner wall of the fixture plate (1) has two first sliding grooves (10) and two second sliding grooves (11). The inner walls of the first sliding groove (10) and the inner walls of the second sliding groove (11) are slidably connected to sliders (12). The outer wall of the slider (12), the inner wall of the first sliding groove (10) and the inner wall of the second sliding groove (11) are all polished.

3. The circuit board soldering fixture according to claim 2, characterized in that: The top of the slider (12) is fixedly connected to an L-shaped plate (13), the top of the inner wall of the L-shaped plate (13) is fixedly connected to an elastic telescopic rod (14), the bottom end of the elastic telescopic rod (14) is provided with a clamping plate (15), and the bottom of the clamping plate (15) is provided with pressing protrusions.

4. The circuit board soldering fixture according to claim 1, characterized in that: The bottom of the inner wall of the fixture plate (1) is provided with three heat dissipation grooves. The fixture plate (1) can be detachably installed with the heat dissipation plate (16) through the heat dissipation grooves. The gas absorption box (2) is provided with a heat exchange plate (25).

5. The circuit board soldering fixture according to claim 1, characterized in that: A duct (17) is provided on one side of the gas absorption box (2), and a cooling fan (18) is fixedly connected to one side of the gas absorption box (2).

6. The circuit board soldering fixture according to claim 1, characterized in that: A piston rod (20) is fixedly connected to the side of the moving plate (5) near the gas absorption box (2). A piston cylinder (19) is fixedly connected to the side of the gas absorption box (2) near the moving plate (5). The outer wall of the piston rod (20) is slidably connected to the inner wall of the piston cylinder (19). A spring (21) is fixedly connected to one end of the inner wall of the piston cylinder (19). The other end of the spring (21) is connected to the corresponding end of the piston rod (20).

7. The circuit board soldering fixture according to claim 1, characterized in that: A pull rod (22) is fixedly connected to the side of the movable plate (5) away from the gas absorption box (2), and the outer wall of the pull rod (22) is provided with anti-slip grooves.

8. The circuit board soldering fixture according to claim 1, characterized in that: The air outlet pipe (3) is equipped with a filter screen (24), one end of which is flush with the corresponding end of the air outlet pipe (3).

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