PCB (Printed Circuit Board) welding auxiliary device

Abstract

The utility model relates to the technical field of circuit board welding, in particular to a PCB welding auxiliary device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a top plate, a sliding groove is formed in the top plate, a movable plate is slidably connected in the sliding groove, an air pump is installed on the top of the movable plate, and one end of the air pump is fixedly connected with a screen. The other end of the air pump is fixedly connected with a nozzle, the screen is communicated with the nozzle, the bottom of the moving plate is fixedly connected with a lantern ring, and the inner wall of the lantern ring is fixedly connected with first teeth; through cooperative use of an air pump, a lantern ring, a moving plate, first teeth, second teeth, a stepping motor, a screen and a spray head, air can be sprayed to the surface of a circuit board body through the spray head by means of the air pump, and meanwhile, the lantern ring, the moving plate and the spray head are driven by the stepping motor to horizontally and circularly move, so that dust on the surface of the circuit board is comprehensively removed; and the dust removal effect is improved, and the situation that the welding quality of the circuit board is reduced due to the existence of dust is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board welding, in particular to a PCB circuit board welding auxiliary device. Background Art

[0002] PCB, also known as printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Because it is made by electronic printing, it is called a "printed" circuit board. Auxiliary devices are needed when welding circuit boards.

[0003] The Chinese authorized announcement number CN218362594U is a PCB circuit board welding auxiliary device. The PCB board is supported and fixed by the cooperation of the pressure plate and the support plate, so that the PCB board is in a horizontal state. At the same time, the support plate can move up and down, so that electronic components with a height greater than other electronic components can contact the compensation plate. The electronic components with a height greater than other electronic components are supported by the compensation plate, so that the electronic components with a height greater than other electronic components and the PCB board will not be tilted relative to each other, thereby ensuring the quality of welding.

[0004] There are still some shortcomings in use. When welding the circuit board, the dust on the surface of the circuit board cannot be removed. The presence of dust will reduce the welding firmness of the tin point and the circuit board, and then reduce the welding quality of the circuit board. At the same time, after the welding of the circuit board is completed, burrs will appear on the surface of the soldering point. The burrs cannot be smoothed in time, which will cause damage to the workers' hands when they touch them with their hands. Utility Model Content

[0005] The purpose of the utility model is to provide a PCB circuit board welding auxiliary device to solve the problem proposed in the above background technology that the dust on the surface of the circuit board cannot be removed when the circuit board is welded, the presence of dust will reduce the welding firmness of the tin point and the circuit board, and then reduce the welding quality of the circuit board, and at the same time, after the welding of the circuit board is completed, burrs will appear on the surface of the soldering point, and the burrs cannot be smoothed in time, which will cause damage to the workers' hands when the workers touch them with their hands.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A PCB circuit board welding auxiliary device comprises a bottom plate, the top of the bottom plate is fixedly connected to a top plate, a slide groove is provided in the top plate, a movable plate is slidably connected in the slide groove, an air pump is installed on the top of the movable plate, a screen is fixedly connected to one end of the air pump, a nozzle is fixedly connected to the other end of the air pump, the screen and the nozzle are connected, a collar is fixedly connected to the bottom of the movable plate, a first tooth is fixedly connected to the inner wall of the collar, a stepping motor is installed on the top of the bottom plate, a second tooth is fixedly connected to the output end of the stepping motor, the second tooth extends into the collar, and the second tooth is meshed with the first tooth.

[0008] As a preferred solution of the utility model, a driving motor is installed at the bottom of the top plate, the output end of the driving motor is fixedly connected to a threaded rod, the external thread of the threaded rod is connected to a threaded sleeve, and the top of the threaded sleeve is fixedly connected to an extrusion plate.

[0009] As a preferred solution of the utility model, a circuit board body is arranged on the surface of the top plate, the extrusion plate abuts against the circuit board body, and the nozzle is arranged on the side of the circuit board body.

[0010] As a preferred solution of the utility model, a connecting plate is fixedly connected to the top of the top plate, a top groove is opened in the connecting plate, and a sliding plate is slidably connected in the top groove.

[0011] As a preferred solution of the utility model, a telescopic tube is installed at the bottom of the slide, a micro motor is installed at the bottom of the telescopic tube, and a grinding disc is fixedly connected to the output end of the micro motor.

[0012] As a preferred solution of the utility model, a screw is threadedly connected to the side of the connecting plate, a side end of the screw abuts against the slide plate, and an electric welding head is movably connected to the bottom of the connecting plate.

[0013] As a preferred solution of the utility model, a universal wheel is arranged at the bottom of the base plate, and the universal wheel is movably connected to the base plate.

[0014] As a preferred solution of the utility model, the extrusion plate is made of stainless steel, the surface of the extrusion plate is provided with anti-slip grooves, and the extrusion plate is arranged on the side of the slide groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, by arranging an air pump, a sleeve ring, a movable plate, a first tooth, a second tooth, a stepping motor, a screen and a nozzle for coordinated use, the air pump can be used to spray gas through the nozzle to the surface of the circuit board body, and the stepping motor can drive the sleeve ring, the movable plate and the nozzle to move horizontally and cyclically, so as to comprehensively remove dust on the surface of the circuit board, improve the dust removal effect, and avoid the presence of dust and reduce the welding quality of the circuit board.

[0017] 2. In the utility model, by setting the connection plate, screws, slide plate, telescopic tube, micro motor and grinding disc for coordinated use, the grinding disc can be driven to rotate by the micro motor, so that the burrs on the welding place can be ground off, so that the welding place can be kept smooth, avoiding the presence of burrs that may easily cause damage to the workers' hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the sleeve ring and the air pump of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the connecting plate and the grinding disc of the utility model.

[0022] In the figure: 1, bottom plate; 2, universal wheel; 3, drive motor; 4, threaded rod; 5, stepping motor; 6, collar; 7, first tooth; 8, second tooth; 9, top plate; 10, slide groove; 11, screen; 12, air pump; 13, moving plate; 14, extrusion plate; 15, threaded sleeve; 16, circuit board body; 17, connecting plate; 18, top groove; 19, slide plate; 20, screw; 21, grinding disc; 22, electric welding head; 23, telescopic tube; 24, micro motor; 25, nozzle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A PCB circuit board welding auxiliary device comprises a bottom plate 1, a top plate 9 is fixedly connected to the top of the bottom plate 1, a slide groove 10 is provided in the top plate 9, a moving plate 13 is slidably connected in the slide groove 10, an air pump 12 is installed on the top of the moving plate 13, a screen 11 is fixedly connected to one end of the air pump 12, a nozzle 25 is fixedly connected to the other end of the air pump 12, the screen 11 and the nozzle 25 are communicated, a collar 6 is fixedly connected to the bottom of the moving plate 13, a first tooth 7 is fixedly connected to the inner wall of the collar 6, a stepping motor 5 is installed on the top of the bottom plate 1, a second tooth 8 is fixedly connected to the output end of the stepping motor 5, the second tooth 8 extends into the collar 6, and the second tooth 8 is meshed with the first tooth 7.

[0026] In this embodiment, Figure 2 and Figure 3 As shown, a driving motor 3 is installed at the bottom of the top plate 9, and a threaded rod 4 is fixedly connected to the output end of the driving motor 3. The external thread of the threaded rod 4 is connected to a threaded sleeve 15, and the top of the threaded sleeve 15 is fixedly connected to an extrusion plate 14. A circuit board body 16 is provided on the surface of the top plate 9, and the extrusion plate 14 is abutted against the circuit board body 16. The nozzle 25 is arranged on the side of the circuit board body 16, and a connecting plate 17 is fixedly connected to the top of the top plate 9. A top groove 18 is opened in the connecting plate 17, and a slide plate 19 is slidably connected in the top groove 18.

[0027] Among them, the gas can be sprayed onto the surface of the circuit board body 16 through the nozzle 25 by the air pump 12, and at the same time, the ring 6, the moving plate 13 and the nozzle 25 are driven by the stepper motor 5 to move horizontally in a circular motion, so that the dust on the surface of the circuit board is completely removed, the dust removal effect is improved, and the presence of dust is avoided to reduce the welding quality of the circuit board.

[0028] In this embodiment, Figure 1 and Figure 4 As shown, a telescopic tube 23 is installed at the bottom of the skateboard 19, and a micro motor 24 is installed at the bottom of the telescopic tube 23. The output end of the micro motor 24 is fixedly connected to a grinding disc 21. The side of the connecting plate 17 is threadedly connected with a screw 20, and the side end of the screw 20 is against the skateboard 19. The bottom of the connecting plate 17 is movably connected with an electric welding head 22. A universal wheel 2 is provided at the bottom of the base plate 1, and the universal wheel 2 is movably connected to the base plate 1. The material of the extrusion plate 14 is stainless steel, and the surface of the extrusion plate 14 is provided with anti-slip grooves. The extrusion plate 14 is arranged on the side of the slide groove 10.

[0029] The grinding disc 21 can be driven to rotate by the micro motor 24, so that the burrs at the welding point can be ground to keep the welding point smooth, thereby avoiding the existence of burrs that may easily cause damage to the workers' hands.

[0030] The working process of the utility model is as follows: when the PCB circuit board welding auxiliary device designed by the present invention is in operation, the circuit board body 16 is placed on the surface of the top plate 9, and then the switch of the driving motor 3 is turned on. When the driving motor 3 is working, the threaded rod 4 is driven to rotate. Since the threaded rod 4 and the threaded sleeve 15 are threadedly connected, the threaded sleeve 15 and the extrusion plate 14 can be driven to move. The two sides of the circuit board body 16 are squeezed and limited by the extrusion plate 14, and then the switches of the air pump 12 and the stepper motor 5 are turned on. When the air pump 12 is working, the external gas enters the nozzle 25 through the screen 11, and is sprayed onto the surface of the circuit board body 16 through the nozzle 25. When the stepper motor 5 During operation, the second teeth 8 and the first teeth 7 are driven to engage with each other in a cyclic gap, thereby driving the ring 6 and the air pump 12 to cyclically move, removing dust on the surface of the circuit board body 16, improving the cleanliness of the surface of the circuit board body 16, and welding the surface of the circuit board body 16 through the electric welding head 22. When welding is completed, the slide plate 19 is slid in the top groove 18 to move the grinding disc 21 to the welding position, and then the screw 20 is rotated to fix the slide plate 19 through the screw 20, and the grinding disc 21 is driven to move downward through the telescopic tube 23, and the grinding disc 21 is driven to rotate through the micro motor 24, so that the welding position can be polished to avoid burrs on the welding position.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB circuit board welding auxiliary device, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a top plate (9), a slide groove (10) is provided in the top plate (9), a movable plate (13) is slidably connected in the slide groove (10), an air pump (12) is installed on the top of the movable plate (13), one end of the air pump (12) is fixedly connected to a screen (11), the other end of the air pump (12) is fixedly connected to a nozzle (25), the screen (11) and the nozzle (25) are communicated, a collar (6) is fixedly connected to the bottom of the movable plate (13), the inner wall of the collar (6) is fixedly connected to a first tooth (7), a stepping motor (5) is installed on the top of the bottom plate (1), the output end of the stepping motor (5) is fixedly connected to a second tooth (8), the second tooth (8) extends into the collar (6), and the second tooth (8) is meshed with the first tooth (7).

2. A PCB circuit board welding auxiliary device according to claim 1, characterized in that: A driving motor (3) is installed at the bottom of the top plate (9); a threaded rod (4) is fixedly connected to the output end of the driving motor (3); a threaded sleeve (15) is connected to the external thread of the threaded rod (4); and an extrusion plate (14) is fixedly connected to the top of the threaded sleeve (15).

3. A PCB circuit board welding auxiliary device according to claim 2, characterized in that: A circuit board body (16) is arranged on the surface of the top plate (9), the extrusion plate (14) abuts against the circuit board body (16), and the nozzle (25) is arranged on the side of the circuit board body (16).

4. A PCB circuit board welding auxiliary device according to claim 1, characterized in that: A connecting plate (17) is fixedly connected to the top of the top plate (9), a top groove (18) is provided in the connecting plate (17), and a sliding plate (19) is slidably connected in the top groove (18).

5. A PCB circuit board welding auxiliary device according to claim 4, characterized in that: A telescopic tube (23) is installed at the bottom of the slide plate (19), a micro motor (24) is installed at the bottom of the telescopic tube (23), and a grinding disc (21) is fixedly connected to the output end of the micro motor (24).

6. A PCB circuit board welding auxiliary device according to claim 4, characterized in that: The side surface of the connecting plate (17) is threadedly connected with a screw (20), the side end of the screw (20) abuts against the slide plate (19), and the bottom of the connecting plate (17) is movably connected with an electric welding head (22).

7. A PCB circuit board welding auxiliary device according to claim 1, characterized in that: A universal wheel (2) is provided at the bottom of the base plate (1), and the universal wheel (2) is movably connected to the base plate (1).

8. A PCB circuit board welding auxiliary device according to claim 2, characterized in that: The material of the extrusion plate (14) is stainless steel, and the surface of the extrusion plate (14) is provided with anti-slip grooves. The extrusion plate (14) is arranged on the side of the slide groove (10).

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