Welding tin short circuit prevention device for PCB processing

Abstract

The utility model belongs to the technical field of circuit board welding, and particularly discloses a welding tin short circuit prevention device for PCB machining, which comprises a welding gun main body, a heat insulation pipe is fixedly connected to the left side of the welding gun main body, a sliding rail is arranged on the surface of the welding gun main body, and a rubber grip is arranged on the outer surface of the heat insulation pipe. The right side of the rubber grip is fixedly connected with a sliding connecting rod, the sliding connecting rod is slidably connected with the interior of the sliding rail, and a shifting piece groove is formed in the front surface of the interior of the sliding rail. The welding gun head can be prevented from directly making contact with an object or a worker and scalding the object or the worker when work is finished through the protective cover, meanwhile, the protective cover is moved to the heat insulation pipe, the cleaning ring does not make contact with the welding gun head, and therefore the welding gun head can be placed on a table top more smoothly; and the welding gun head can be protected through the protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board welding, in particular to a welding tin short-circuit prevention device for PCB board processing. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper board, impedance board, ultra-thin circuit board, printed circuit board, etc. Tin soldering is required during the production and processing of circuit boards, so a soldering anti-tin short-circuit device for PCB circuit board processing is needed.

[0003] After searching, the existing Chinese patent announcement number is: CN220362078U, which provides a soldering anti-tin short-circuit device for PCB circuit board processing, including a soldering gun rubber grip, the outer wall of the soldering gun rubber grip is welded with a rubber block, one end of the soldering gun rubber grip is installed with a hanging ring, and the other end of the soldering gun rubber grip is installed with a soldering gun heat-conducting column. The anti-scalding mechanism is set. During the use of the device, the anti-scalding tube installed on the outer wall of the soldering gun heat-conducting column prevents the soldering gun heat-conducting column from causing burns to the staff under high-temperature operations. At the same time, the metallized polyester coating attached to the outer wall of the anti-scalding tube increases the effect of blocking high temperature.

[0004] Although the above patent can increase the effect of blocking high temperature, the above device still has the following problems: during the use of the device, since the welding gun head of the device is directly exposed to the external environment, the welding gun head cannot be protected to a certain extent after use, and objects in the external environment are prone to collide with the welding gun head, causing damage to the welding gun head, thereby reducing the service life of the welding gun head to a certain extent. In response to the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content

[0005] The purpose of the utility model is to provide a soldering tin short-circuit prevention device for PCB board processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soldering tin short-circuit prevention device for PCB board processing, comprising a welding gun body, a heat insulation tube fixedly connected to the left side of the welding gun body, a welding gun head provided on the welding gun body, a sliding track provided on the surface of the welding gun body, a rubber grip provided on the outer surface of the heat insulation tube, a sliding connecting rod fixedly connected to the right side of the rubber grip, the sliding connecting rod is slidably connected to the inside of the sliding track, a paddle slot is provided on the front surface of the inside of the sliding track, a turntable is rotatably connected to the inside of the welding gun body, a limiting groove communicating with the inside of the sliding track is provided inside the turntable, and a cleaning ring is fixedly connected to the inside of the rubber grip.

[0007] Preferably, an elastic wire is provided on the right side of the welding gun body.

[0008] Preferably, the welding gun head is located inside the insulation tube.

[0009] Preferably, a positioning groove is provided inside the sliding connecting rod, and a button extending into the positioning groove is slidably connected inside the sliding connecting rod, and one end of the button extending into the positioning groove is fixedly connected to a connecting rod.

[0010] Preferably, the front side of the connecting rod is fixedly connected to a large spring, and the end of the large spring away from the connecting rod is fixedly connected to the front surface of the inner wall of the positioning groove. The front side of the connecting rod is fixedly connected to a middle spring, and the end of the middle spring away from the connecting rod is fixedly connected to a limiting block, and the large spring is arranged on the upper side of the middle spring.

[0011] Preferably, a spring groove is provided inside the welding gun body, and the spring groove is arranged on the front side of the sliding track.

[0012] Preferably, a small spring is fixedly connected to the interior of the spring slot, one end of the small spring extending into the paddle slot is fixedly connected to a paddle, and the paddle is slidably connected to the paddle slot.

[0013] Preferably, the surface of the limiting block is plugged into the interior of the limiting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This PCB board processing soldering anti-tin short-circuit device can prevent the welding gun tip from directly contacting objects or workers after work through the function of the protective cover, causing burns. At the same time, the protective cover is moved to the insulation tube and the cleaning ring does not contact the welding gun tip, so that the welding gun tip can be placed more smoothly on the table. When the device is not in use, the protective cover can protect the welding gun tip, to a certain extent reducing the collision of objects in the external environment with the welding gun tip, causing damage to the welding gun tip, thereby extending the service life of the welding gun tip to a certain extent.

[0016] 2. This PCB board processing soldering anti-tin short-circuit device integrates the rubber grip and the protective cover through a sliding device. Different sliding positions have different functions. The surface of the rubber grip is provided with a temperature-isolating rubber material, which protects the workers while also increasing the friction between the rubber grip and the palm of the workers, allowing for more stable gripping. In addition, when the workers need to temporarily place the welding gun, they can slide it to the front end as a protective cover. There are protrusions on it, which can stabilize the position of the welding gun more firmly.

[0017] 3. The PCB board processing welding tin short-circuit prevention device can rotate the rubber grip through the turntable, and at the same time drive the cleaning ring set inside the rubber grip to start rotating. The material of the brush is also high-temperature resistant, which can better adapt to operations in high-temperature environments. The rotating brush can more thoroughly clean the residue of the welding gun head after it cools to a certain temperature, and further ensure the stability of the welding gun when welding the circuit board, greatly reducing the possibility of tin beads running around during welding and causing a short circuit in the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a soldering tin short-circuit prevention device for PCB board processing according to the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the turntable of the utility model;

[0020] Figure 3 This is a structural diagram of the paddle slot of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the sliding connecting rod of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the connecting rod of the utility model;

[0023] Figure 6 For this utility model Figure 4 Schematic diagram of the enlarged structure of A in the figure.

[0024] In the figure: 1. Welding gun body; 2. Cleaning ring; 3. Elastic wire; 4. Welding gun head; 5. Sliding rod; 6. Rubber grip; 7. Sliding track; 8. Button; 9. Connecting rod; 10. Limit block; 11. Large spring; 12. Medium spring; 13. Positioning slot; 14. Paddle slot; 15. Limit slot; 16. Turntable; 17. Small spring; 18. Paddle; 19. Spring slot; 20. Insulation tube. DETAILED DESCRIPTION

[0025] See also Figure 1-6The utility model provides a technical solution: a soldering tin short-circuit prevention device for PCB board processing, comprising a welding gun body 1, a sliding track 7 is provided on the surface of the welding gun body 1, and the number of the sliding tracks 7 is two. The two sliding tracks 7 are symmetrically distributed on the surface of the welding gun body 1, and an elastic wire 3 is provided on the right side of the welding gun body 1. Because the elastic wire 3 has a little elasticity, it can well prevent the wire from affecting the worker's work when the worker is soldering the circuit board. The left side of the welding gun body 1 is fixedly connected to the heat insulation tube 20, and a layer of heat insulation material is brushed on the surface of the welding gun to more fully isolate the high temperature generated when the welding gun is working. The interior of the heat insulation tube 20 is provided with a welding gun head 4, and the side of the welding gun head 4 away from the working end is fixedly connected to the left side of the welding gun body 1. Next, the outer surface of the insulation tube 20 is provided with a rubber grip 6. The surface of the rubber grip 6 is made of high-temperature resistant rubber material, which serves to isolate the high temperature generated when the welding gun is working and prevent the high temperature from scalding the staff. At the same time, the rubber material can also increase the friction between the staff's palm and the surface of the rubber grip 6, so that the staff can be more stable when welding the circuit board. The surface of the rubber grip 6 is also provided with a protrusion, which is convenient for the staff to better support the welding gun when temporarily placing the welding gun. The right side of the rubber grip 6 is fixedly connected with a sliding link 5. The cross-section of the sliding link 5 is "L"-shaped, and there are two of them, which are symmetrically arranged on the right side of the rubber grip 6. The sliding link 5 is connected to the inside of the sliding track 7 for sliding, and the rear corner of the sliding link 5 slides A button 8 is connected, a positioning groove 13 is provided inside the sliding connecting rod 5, and the button 8 is extended to one end of the positioning groove 13 and is fixedly connected to a connecting rod 9, and the front side of the connecting rod 9 near the end of the button 8 is fixedly connected to a large spring 11, and the connecting rod 9 can be provided with a convex block at the position where the large spring 11 is connected, which can better limit the position of the large spring 11, and the end of the large spring 11 away from the connecting rod 9 is fixedly connected to the front surface of the inner wall of the positioning groove 13, and the front side of the other end of the connecting rod 9 is fixedly connected to a middle spring 12, and the end of the middle spring 12 away from the connecting rod 9 is fixedly connected to the limiting block 10, and a spring groove 19 is provided inside the welding gun body 1, and the spring groove 19 is provided on the front side of the sliding rail 7, and the front side of the sliding rail 7 is provided with a paddle groove 14, and the paddle The slot 14 connects the sliding track 7 and the spring slot 19. There are two paddle slots 14, which are respectively arranged at the left and right ends of the sliding track 7. The front side of the spring slot 19 corresponds to the position of the paddle slot 14 and is fixedly connected with a small spring 17. Similarly, there are two small springs 17. One end of the small spring 17 extending into the paddle slot 14 is fixedly connected with a paddle 18. The paddle 18 is rotatably connected to the paddle slot 14. There are two paddles 18. The two paddles 18 are symmetrically arranged in the two paddle slots 14. The shape of the paddle 18 is similar to that of an umbrella paddle, which can stabilize the position of the rubber grip 6 well. The initial state of the welding gun is that the rubber grip 6 is at the welding gun head 4 of the welding gun. When a protective cover protects the welding gun head 4,Prevent the just end work soldering gun head 4 because high temperature and scald staff or circuit board, also prevent air dust adhere on the soldering gun head 4, affect the stability of tin bead when soldering circuit board, when staff start work, need to move rubber handle 6 to the tail of soldering gun, when one handle's action, can pass through press button 8, button 8 will drive connecting rod 9 to push forward, connecting rod 9 will push the tab 18, the tab 18 under the restriction of tab slot 14 starts to rotate to spring slot 19, leave the restriction of tab 18, sliding link 5 can slide left and right inside sliding rail 7, simultaneously drive rubber handle 6 to start to slide left and right, when rubber handle 6 slides to the tail of soldering gun, will top to the tab 18 set in the tail, because the shape of tab 18 is similar to the tab of umbrella, the arc of tab 18 surface can make sliding link 5 unimpeded to slide to the right side of sliding rail 7, and because the elastic potential energy of small spring 17, when sliding link 5 slides to the corresponding position, tab 18 will restore to the original position under the action of small spring 17, return to the original position tab 18 just extends to the positioning slot 13, will limit the right movement of sliding link 5, thereby fix the position of rubber handle 6, and if work after still need rubber handle 6 as protective cover, because two tabs 18 are in symmetrical relationship, the left tab 18 will limit the right movement of sliding link 5, the right tab 18 will limit the left movement of sliding link 5, so repeat the above action, the middle rotation of soldering gun body 1 is connected with rotating disc 16, sliding rail 7 and spring slot 19 all penetrate rotating disc 16, the front side of sliding rail 7 belongs to the position of rotating disc 16 and is provided with limiting slot 15, staff need to press button 8 when moving the position of rubber handle 6, press button 8 at the same time also drive the limiting block 10 at the bottom of connecting rod 9 to push forward, when sliding link 5 slides to the position of rotating disc 16, limiting block 10 will pop into limiting slot 15 under the elastic action of middle spring 12, at this time, sliding link 5 cannot continue to slide, and under the action of rotating disc 16, sliding link 5 can drive rubber handle 6 to rotate, the inside of rubber handle 6 is fixedly connected with cleaning ring 2, the cleaning ring 2 adopts high-temperature-resistant material, which can adapt to some high-temperature work scenes, when staff press button 8 to make sliding link slide to the position of rotating disc 16, limit the horizontal movement of sliding link 5 under the action of limiting slot 15, at this time, rotating disc 16 can be rotated, thereby driving cleaning ring 2 in rubber handle 6 to start rotating, cleaning ring 2 can clean the waste and oxides generated on the soldering gun head 4 due to long-time work, make the soldering gun head 4 more clean, also can effectively prevent the soldering gun head 4 from slipping because of the residual on its surface when working, make tin bead soldering to the position that should not be soldered, cause the problem of circuit board short circuit.

[0026] Working principle: For this type of PCB board processing welding anti-tin short-circuit device, in the initial state, the rubber grip 6 is located at the welding gun head 4 of the welding gun. When a protective cover protects the welding gun head 4, when the staff starts working, they need to move the rubber grip 6 to the tail of the welding gun. When a handle is used, the button 8 can be pressed, and the button 8 will drive the connecting rod 9 to push forward, and the connecting rod 9 will push the paddle 18. The paddle 18 starts to rotate toward the spring groove 19 under the restriction of the paddle groove 14. After leaving the restriction of the paddle 18, the sliding link 5 can slide left and right inside the sliding track 7, and at the same time drive the rubber grip 6 to slide left and right. When the rubber grip 6 slides to the tail of the welding gun, it will hit the paddle 18 set at the tail. Because the shape of the paddle 18 is similar to the paddle of an umbrella, the arc on the surface of the paddle 18 can make the sliding link 5 slide to the sliding track 7 without hindrance. On the far right side, due to the elastic potential energy of the small spring 17, when the sliding link 5 slides to the corresponding position, the paddle 18 will return to its original position under the action of the small spring 17. The paddle 18 that has returned to its original position just extends into the positioning groove 13, which will limit the sliding link 5 from moving to the right, thereby fixing the position of the rubber grip 6. When the work is completed, it is necessary to clean the residue and oxides of the welding gun head 4. At this time, the button 8 can be pressed to make the sliding link 5 free from the restriction of the paddle 18 and slide left and right. When the sliding link 5 slides to the position of the turntable 16, it will be restricted from moving left and right under the action of the limit groove 15. While continuing to press the button 8, the turntable 16 can be rotated, thereby driving the cleaning ring 2 in the rubber grip 6 to start rotating, and then start cleaning the welding gun head 4. After cleaning is completed, release the button 8 to continue sliding the sliding link 5, slide directly to the far left end, and fix the position under the restriction of the paddle 18 at the left end, thereby completing the operation.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soldering tin short-circuit prevention device for PCB board processing, comprising a soldering gun body (1), a heat insulation tube (20) fixedly connected to the left side of the soldering gun body (1), and a soldering gun head (4) provided on the soldering gun body (1), characterized in that: A sliding track (7) is provided on the surface of the welding gun body (1), a rubber grip (6) is provided on the outer surface of the heat insulation tube (20), a sliding link (5) is fixedly connected to the right side of the rubber grip (6), the sliding link (5) is slidably connected to the inside of the sliding track (7), a paddle slot (14) is provided on the front surface of the inside of the sliding track (7), a turntable (16) is rotatably connected to the inside of the welding gun body (1), a limiting groove (15) communicating with the inside of the sliding track (7) is provided inside the turntable (16), and a cleaning ring (2) is fixedly connected to the inside of the rubber grip (6).

2. The soldering tin short-circuit prevention device for PCB processing according to claim 1, characterized in that: An elastic wire (3) is provided on the right side of the welding gun body (1).

3. The soldering tin short-circuit prevention device for PCB processing according to claim 1, characterized in that: The welding gun head (4) is located inside the thermal insulation tube (20).

4. The soldering tin short-circuit prevention device for PCB processing according to claim 1, characterized in that: A positioning groove (13) is provided inside the sliding connecting rod (5), and a button (8) extending into the positioning groove (13) is slidably connected inside the sliding connecting rod (5), and one end of the button (8) extending into the positioning groove (13) is fixedly connected to a connecting rod (9).

5. The device for preventing soldering short circuits in PCB processing according to claim 4, characterized in that: The front side of the connecting rod (9) is fixedly connected to a large spring (11), one end of the large spring (11) away from the connecting rod (9) is fixedly connected to the front surface of the inner wall of the positioning groove (13), the front side of the connecting rod (9) is fixedly connected to a middle spring (12), one end of the middle spring (12) away from the connecting rod (9) is fixedly connected to a limiting block (10), and the large spring (11) is arranged on the upper side of the middle spring (12).

6. The soldering tin short-circuit prevention device for PCB processing according to claim 1, characterized in that: A spring slot (19) is provided inside the welding gun body (1), and the spring slot (19) is arranged on the front side of the sliding track (7).

7. The soldering tin short-circuit prevention device for PCB processing according to claim 6, characterized in that: A small spring (17) is fixedly connected to the interior of the spring slot (19); one end of the small spring (17) extending into the paddle slot (14) is fixedly connected to a paddle (18); and the paddle (18) is slidably connected to the paddle slot (14).

8. The soldering tin short-circuit prevention device for PCB processing according to claim 5, characterized in that: The surface of the limiting block (10) is plugged into the interior of the limiting groove (15).

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