Circuit board limiting tool for pin welding

Abstract

The utility model relates to the field of electronic processing tools, in particular to a circuit board limiting tool for pin welding, which comprises a limiting mechanism, a clamping mechanism and a clamping mechanism, and is characterized in that the limiting mechanism comprises an H-shaped sliding frame, and a plurality of arc grooves are formed in the outer wall of the H-shaped sliding frame at equal intervals; one rotating seat I is fixed at one end of the H-shaped sliding frame, and the other rotating seat I slides on the outer wall of the H-shaped sliding frame; the clamping mechanism is fixed on the outer wall of one rotating seat I and can limit one rotating seat I; the turnover angle adjusting mechanism is fixed at one end of the rotating seat I and can quickly adjust the turnover angle of the circuit board; and the plugging mechanism is fixed at one end of the overturning angle adjusting mechanism and can limit the circuit board. According to the utility model, the limiting of one of the rotating seats I by the clamping mechanism is released by a worker, and the worker only needs to press the circuit board downwards along the inclined surfaces of the two inclined frames, so that the circuit board can be limited between the two inclined frames, and the operation convenience and the installation efficiency are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic processing tooling, specifically a circuit board limiting tooling for pin welding. Background Technology

[0002] In the electronics manufacturing industry, pin soldering is one of the key processes, and circuit board positioning fixtures are crucial for ensuring soldering accuracy. Traditional pin soldering positioning fixtures have several problems in practical operation. When dealing with circuit boards of different sizes, the positioning mechanism needs to be manually adjusted repeatedly, a tedious and time-consuming process that severely impacts production efficiency. Especially when handling larger circuit boards, their area and shape make pin soldering inconvenient in some areas. Even when adjusting the angle by rotating the circuit board, it's impossible to quickly and accurately reach the specified angle, requiring repeated adjustments, further reducing soldering efficiency and increasing production and time costs. Utility Model Content

[0003] The purpose of this invention is to provide a circuit board limiting fixture for pin soldering, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A circuit board positioning fixture for pin soldering includes:

[0006] The limiting mechanism includes an H-shaped carriage, wherein the outer wall of the H-shaped carriage is provided with a plurality of arc grooves at equal intervals;

[0007] Rotary seat 1, there are two, one of which is fixed at one end of the H-shaped carriage, and the other slides on the outer wall of the H-shaped carriage;

[0008] The snap-fit ​​mechanism is fixed to the outer wall of one of the rotating seats and can limit the movement of one of the rotating seats.

[0009] The flip angle adjustment mechanism is fixed at one end of the rotating base and can quickly adjust the flip angle of the circuit board.

[0010] The plug-in mechanism, fixed at one end of the flip angle adjustment mechanism, can limit the circuit board.

[0011] Furthermore, the limiting mechanism includes:

[0012] Angle measuring disc is fixed to the outer wall of one end of the rotating seat;

[0013] Spring 1 is fixed between the outer wall of one of the rotating seats and the inner wall of the H-shaped carriage;

[0014] A square hole is formed on the outer wall of one of the rotating seats.

[0015] Preferably, the snap-fit ​​mechanism includes:

[0016] Rotating seat 2 is fixed to the outer wall of rotating seat 1. Rotating seat 2 is rotatably connected to L-shaped frame 1. A round rod 1 is fixedly connected to the outer wall of L-shaped frame 1.

[0017] Spring 1 is fixed between the inner wall of rotating seat 2 and the outer wall of L-shaped frame 1.

[0018] Preferably, the snap-fit ​​mechanism includes:

[0019] A slide rail is fixed on the outer wall of the rotating seat, and an inclined block is slidably inserted inside the slide rail;

[0020] Spring 2 is fixed between the outer wall of inclined block 1 and the inner wall of slide rail.

[0021] Preferably, the tilt angle adjustment mechanism includes:

[0022] The second round rod is rotatably connected to the outer wall of the first rotating seat. An annular shell is fixedly connected to the outer wall of the second round rod, and a threaded groove is provided on the outer wall of the annular shell.

[0023] A torsion ring, screwed onto the outer wall of a threaded groove.

[0024] Preferably, the tilt angle adjustment mechanism includes:

[0025] Ring frame one is fixed to the outer wall of one end of ring shell, and the outer wall of ring frame one is provided with several square grooves one at equal angles around its axis.

[0026] Spring three is fixed to the inner wall of the ring shell, and one end of spring three is fixedly connected to ring frame two. The outer wall of ring frame two is slidably connected to the outer wall of the ring shell.

[0027] Ring frame three rotates on the outer wall of ring frame two. A number of square blocks one are fixedly connected to the outer wall of one end of ring frame three at equal angles around its axis. The outer wall of the square blocks one is inserted into the square groove one. A number of square grooves two are opened on the outer wall of the other end of ring frame three at equal angles around its axis. An L-shaped frame two is fixedly connected to the outer wall of ring frame three.

[0028] Spring 4 is fixed to the outer wall of ring frame 2. One end of spring 4 is fixedly connected to ring frame 4. The outer wall of ring frame 4 is slidably connected to the outer wall of ring shell. Ring frame 5 is rotatably connected to the outer wall of ring frame 4. Several blocks 2 are fixedly connected to the outer wall of ring frame 5 at equal angles around its axis. The outer wall of blocks 2 is inserted into the interior of square groove 2.

[0029] L-shaped frame three is fixed to the outer wall of ring frame five;

[0030] A sliding groove 1 is fixed to the outer wall of the rotating seat 1. An inclined block 2 is slidably inserted inside the sliding groove 1. A square groove 3 is opened on the outer wall of the inclined block 2. A spring 5 is fixedly connected between the outer wall of the inclined block 2 and the inner wall of the sliding groove 1.

[0031] Preferably, the insertion mechanism includes:

[0032] The inclined frame is fixed to the outer wall of the round rod two. A coil spring two is fixedly connected between the outer wall of the inclined frame and the outer wall of the rotating seat one. A sliding groove two is opened on the outer wall of the inclined frame.

[0033] Two sets of circular rods are provided, rotating at equal intervals inside the inclined frame. A circular roller is fixedly connected to one end of the outer wall of the circular rod, and a spur gear is fixedly connected to the other end of the circular rod.

[0034] A square plate is fixed to the inner wall of the inclined frame, and elastic gaskets are fixedly connected to both outer walls of the square plate.

[0035] There are two toothed plates, which slide on the inner wall of the inclined frame on both sides of the square plate.

[0036] The U-shaped frame slides on the outer wall of one side of the inclined frame, and inclined blocks are fixedly connected to both sides of the outer wall of the U-shaped frame.

[0037] Compared with the prior art, the beneficial effects of this utility model are:

[0038] 1. By setting sliding holes, the movement trajectory of the extension mechanism can be precisely controlled, enabling the polyimide film driven by the extension mechanism to make precise contact with the two rollers, effectively improving the accuracy and stability of the work.

[0039] 2. The extension mechanism drives the polyimide film to move along the trajectory of the sliding holes. This allows the first roller pressing unit to continue working while the thermal leveling unit is operating, and the tension between them remains unchanged. The polyimide film processed by the first roller pressing unit will be extended outward and supported by the support mechanism. This does not affect the operation of the thermal leveling unit, effectively improving work efficiency and reducing the downtime of the first roller pressing unit.

[0040] 3. A circular roller four is installed at both corners near the sliding hole through the support mechanism. When the extension mechanism drives the polyimide film to move, the circular roller four can play a supporting and limiting role, so that the polyimide film can extend outward more while the tension remains unchanged. This allows the rolling unit one to work continuously, avoids downtime during the operation of the heat leveling unit, and effectively improves work efficiency and stability. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0042] Figure 2 This is a partial structural diagram of the limiting mechanism in this utility model;

[0043] Figure 3 This is a partial structural diagram of the rotating seat in this utility model;

[0044] Figure 4 This is a schematic diagram of the flip angle adjustment mechanism and the insertion mechanism in this utility model;

[0045] Figure 5 This is a schematic diagram of the slide groove structure in this utility model;

[0046] Figure 6 This is a partial cross-sectional structural diagram of the tilt angle adjustment mechanism in this utility model;

[0047] Figure 7 This is a schematic diagram of the internal structure of the inclined frame in this utility model.

[0048] In the diagram: 100, Limiting mechanism; 110, H-shaped slide; 111, Arc groove; 120, Rotating seat one; 121, Angle measuring disc; 122, Square hole; 130, Spring one; 200, Snap-fit ​​mechanism; 210, Rotating seat two; 211, Round rod one; 212, L-shaped frame one; 213, Coil spring one; 220, Slide rail; 221, Spring two; 222, Inclined block one; 300, Tilting angle adjustment mechanism; 310, Round rod two; 311, Ring shell; 312, Threaded groove; 320, Ring frame one; 321, Square groove one; 322, Ring frame two; 323, Spring three; 331, Ring... Frame 3; 332, L-shaped frame 2; 333, Block 1; 334, Square groove 2; 340, Spring 4; 341, Ring frame 4; 342, Ring frame 5; 343, Block 2; 344, L-shaped frame 3; 350, Torsion ring; 360, Slide groove 1; 361, Inclined block 2; 362, Square groove 3; 363, Spring 5; 400, Insertion mechanism; 410, Inclined frame; 411, Coil spring 2; 412, Spur gear; 413, Circular roller; 414, Square plate; 415, Elastic washer; 416, Slide groove 2; 417, Round rod 3; 420, Toothed plate; 430, U-shaped frame; 431, Inclined block 3. Detailed Implementation

[0049] 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.

[0050] Please see Figure 1-7In this embodiment of the utility model, a circuit board limiting fixture for pin soldering includes a limiting mechanism 100. The limiting mechanism 100 includes an H-shaped slide 110 and the following parts: a plurality of arc grooves 111 are equally spaced on the outer wall of the H-shaped slide 110; two rotating seats 120 are provided, one of which is fixed at one end of the H-shaped slide 110, and the other slides on the outer wall of the H-shaped slide 110; and a locking mechanism 200 is fixed on the outer wall of one of the rotating seats 120, which can lock the rotating seat 120. The circuit board is limited by a limiting mechanism 20, whose flip angle adjustment mechanism 300 is fixed at one end of the rotating base 120, enabling quick adjustment of the circuit board's flip angle. A plug-in mechanism 400 is fixed at one end of the flip angle adjustment mechanism 300, limiting the circuit board. The limiting mechanism 100 includes the following parts: its angle measuring disk 121 is fixed to the outer wall of one end of the rotating base 120, allowing personnel to easily reference the adjustment degree of the flip angle adjustment mechanism 300; and a spring 130 is fixed to one of the rotating bases 120. Between the outer wall and the inner wall of the H-shaped carriage 110, one of the rotating seats 120 can be pulled to slide. A square hole 122 is formed on the outer wall of one of the rotating seats 120. The locking mechanism 200 includes the following parts: a rotating seat 210 is fixed to the outer wall of the rotating seat 120; an L-shaped frame 212 is rotatably connected to the rotating seat 210; a round rod 211 is fixedly connected to the outer wall of the L-shaped frame 212 to limit the rotation seat 120; and a coil spring 213 is fixed to the rotating seat 210. Between the inner wall and the outer wall of L-shaped frame 212, and with slide rail 220 fixed on the outer wall of rotating seat 210, a slidable block 222 is inserted into the slide rail 220, and its spring 221 is fixed between the outer wall of the slid block 222 and the inner wall of the slide rail 220. By releasing the locking mechanism 200 from limiting one of the rotating seats 120, the operator only needs to press the circuit board down along the slope of the two slid frames 410 to limit the circuit board between the two slid frames 410, which effectively improves the convenience of operation and installation efficiency.

[0051] The tilting angle adjustment mechanism 300 includes the following parts: a second round rod 310 is rotatably connected to the outer wall of a rotating seat 120; an annular shell 311 is fixedly connected to the outer wall of the second round rod 310, and a threaded groove 312 is formed on the outer wall of the annular shell 311; a torsion ring 350 is screwed onto the outer wall of the threaded groove 312 to limit one end of the annular shell 311; and a ring frame 320 is fixed to the outer wall of one end of the annular shell 311, and several square grooves 321 are formed at equal angles around its axis on the outer wall of the ring frame 320. Spring 323 is fixed to the inner wall of ring shell 311. Ring frame 2 322 is fixedly connected to one end of spring 323. The outer wall of ring frame 2 322 is slidably connected to the outer wall of ring shell 311. Ring frame 331 rotates on the outer wall of ring frame 2 322. Several square blocks 1 333 are fixedly connected to the outer wall of one end of ring frame 331 at equal angles around its axis. The outer wall of square blocks 1 333 is inserted into square groove 1 321. Several square grooves 2 334 are formed at equal angles around its axis on the outer wall of the other end of ring frame 331. An L-shaped frame 332 is fixedly connected to the outer wall of ring frame 331. A spring 340 is fixed to the outer wall of ring frame 332. Ring frame 341 is fixedly connected to one end of spring 340. The outer wall of ring frame 341 is slidably connected to the outer wall of ring shell 311. Ring frame 342 is rotatably connected to the outer wall of ring frame 341. Several square blocks 343 are fixedly connected to the outer wall of ring frame 342 at equal angles around its axis. The outer walls of square blocks 343 are inserted into the interior of square grooves 334. The L-shaped... Frame 344 is fixed to the outer wall of ring frame 342. Its slide groove 360 ​​is fixed to the outer wall of rotating seat 120. An inclined block 2 361 is slidably inserted inside the slide groove 360. A square groove 362 is opened on the outer wall of the inclined block 2 361. A spring 5 363 is fixedly connected between the outer wall of the inclined block 2 361 and the inner wall of the slide groove 360. The flip angle adjustment mechanism 300 can be set in advance to preset the flip angle of the circuit board. It can be flipped quickly and accurately during operation to meet the needs of personnel operation.

[0052] The insertion mechanism 400 includes the following parts: its inclined frame 410 is fixed to the outer wall of the second round rod 310, and a coil spring 411 is fixedly connected between the outer wall of the inclined frame 410 and the outer wall of the rotating seat 120; a sliding groove 416 is provided on the outer wall of the inclined frame 410; two sets of the third round rod 417 are provided, rotating at equal intervals inside the inclined frame 410; a round roller 413 is fixedly connected to one end of the outer wall of the third round rod 417, the round roller 413 is made of rubber; a spur gear 412 is fixedly connected to the other end of the third round rod 417 to limit the rotation of the round roller 413; and its square plate 414 is fixed to the inclined frame 410. On the inner wall of the square plate 414, elastic pads 415 are fixedly connected to both outer walls. Two toothed plates 420 are provided, which slide on the inner wall of the inclined frame 410 on both sides of the square plate 414 and can engage with the spur gear 412. The U-shaped frame 430 slides on one outer wall of the inclined frame 410. Inclined blocks 431 are fixedly connected to both sides of the outer wall of the U-shaped frame 430. With the U-shaped frame 430, the operator only needs to push the U-shaped frame 430 to release the translation limit of the circuit board. After adjustment, pushing the U-shaped frame 430 back to the original position can limit the circuit board.

[0053] Specifically, during operation, the operator holds one end of the L-shaped frame 212 and rotates it, causing the round rod 211 to separate from the inside of the square hole 122. When one end of the L-shaped frame 212 contacts the inclined block 222, the inclined block 222 is squeezed and slides into the slide rail 220. After the L-shaped frame 212 separates from the inclined block 222, the inclined block 222 is pushed back to its original position by the rebound of the spring 221, limiting the round rod 211. At this time, the rotating seat 120 sliding with the H-shaped slide 110 is pulled by the spring 130 to move towards the other rotating seat 120. The operator presses the circuit board down along the inclined surface of the inclined frame 410, and one of the inclined frames 410 is squeezed, causing the slidable rotating seat 120 to return to its original position. Slide until the edge of the circuit board is inside the slide groove 416. The spring 130 causes the two inclined brackets 410 to limit the circuit board. At this time, the operator holds the inclined block 222 and slides it into the slide rail 220. Affected by the spring 213, the round rod 211 is released from the limit and returns to the square hole 122 to engage with the corresponding arc groove 111, thus completing the fixation. When the operator needs to flip the circuit board to solder pins in a local area, the flip angle adjustment mechanism 300 can be operated in advance to adjust the angle. According to the first angle to be flipped, hold the ring bracket 342 and pull it towards one end of the round rod 310 to separate the square block 343 from the square groove 334. Adjust the L-shaped bracket 344 according to the degree of the reference angle measuring plate 121. After adjusting the position, release ring frame 5 342. The spring 4 340 will cause block 2 343 to engage with square groove 2 334, limiting the position of ring frame 5 342. According to the second angle to be flipped, press ring frame 331 and pull it towards one end of round rod 2 310 to separate block 1 333 from square groove 1 321. Adjust the position of L-shaped frame 2 332 using the angle measuring disc 121. After adjustment, release ring frame 331, allowing block 1 333 to engage with square groove 1 321, limiting the position of ring frame 331. After all adjustments are complete, twist the torsion ring 350 to engage with the threaded groove 312, making the torsion ring 350 tightly adhere to the surface of ring frame 5 342. During welding, the L-shaped frame 2 332 or L-shaped frame 344 and square groove 36 can be manipulated. 2. The circuit board can be quickly and accurately flipped according to a preset angle. When flipping is not needed, press and slide the inclined block 361 into the slide groove 360, so that the square groove 362 separates from the L-shaped frame 332 or L-shaped frame 344. The circuit board is flipped back to its original position by the spring 411, and the square groove 362 engages with the corresponding L-shaped frame 332 or L-shaped frame 344 for limiting. When the circuit board needs to be moved horizontally according to work requirements, press and push the U-shaped frame 430 towards the toothed plate 420, so that the inclined block 431 contacts the toothed plate 420. The toothed plate 420 is squeezed and separates from the spur gear 412, the roller 413 is released from the limiting position, and the operator pushes the circuit board to move horizontally. The roller 413 also rotates accordingly.After the position is adjusted, the U-shaped frame 430 is pushed to one side. The rebound of the elastic pad 415 causes the toothed plate 420 to engage with the spur gear 412, limiting the movement of the roller 413 and the circuit board.

[0054] Example 1

[0055] like Figure 1-3 As shown, in this embodiment, the limiting mechanism 100 includes the following parts: its angle measuring disk 121 is fixed to the outer wall of one end of the rotating seat 120, which allows personnel to easily refer to the adjustment degree of the flip angle adjustment mechanism 300; and the spring 130 is fixed between the outer wall of one of the rotating seats 120 and the inner wall of the H-shaped slide 110, which can pull one of the rotating seats 120 to slide; the square hole 122 is opened on the outer wall of one of the rotating seats 120. The locking mechanism 200 includes the following parts: its rotating seat The second 210 is fixed on the outer wall of the rotating seat 120. An L-shaped frame 212 is rotatably connected to the rotating seat 210, and a round rod 211 is fixedly connected to the outer wall of the L-shaped frame 212, which can limit the rotation of the rotating seat 120. The coil spring 213 is fixed between the inner wall of the rotating seat 210 and the outer wall of the L-shaped frame 212. The slide rail 220 is fixed on the outer wall of the rotating seat 210. An inclined block 222 is slidably inserted inside the slide rail 220, and its spring 221 is fixed between the outer wall of the inclined block 222 and the inner wall of the slide rail 220.

[0056] In this embodiment, the operator holds one end of the L-shaped frame 212 and rotates it, causing the round rod 211 to separate from the inside of the square hole 122. When one end of the L-shaped frame 212 contacts the inclined block 222, the inclined block 222 is squeezed and slides into the slide rail 220. After the L-shaped frame 212 separates from the inclined block 222, the inclined block 222 is pushed back to its original position by the rebound of the second spring 221, limiting the round rod 211. At this time, the rotating seat 120 sliding with the H-shaped slide 110 is pulled by the spring 130 to move towards the other rotating seat 120. The operator presses the circuit board down along the inclined surface of the inclined frame 410. One of the inclined frames 410 is squeezed and drives the slidable rotating seat 120 to slide back to its original position until the edge of the circuit board is inside the second slide groove 416. The rebound of 130 causes the two inclined brackets 410 to limit the circuit board. At this time, the operator presses the inclined block 222 and slides it into the slide rail 220. Affected by the rebound of the coil spring 213, the round rod 211 is released from the limit and returns to the square hole 122 to engage with the arc groove 111 at the corresponding position, thus completing the fixation. By releasing the locking mechanism 200 from limiting one of the rotating seats 120, the operator only needs to press the circuit board down along the inclined surface of the two inclined brackets 410 to limit the circuit board between the two inclined brackets 410, which effectively improves the convenience of operation and installation efficiency. Then, by operating the locking mechanism 200, the round rod 211 engages with the arc groove 111 at the current corresponding position, which can limit the rotating seat 120 sliding on the H-shaped slide 110, prevent slippage during welding, and effectively improve the working stability.

[0057] like Figure 4-6As shown, in this embodiment, the tilting angle adjustment mechanism 300 includes the following parts: its second round rod 310 is rotatably connected to the outer wall of the first rotating seat 120; an annular shell 311 is fixedly connected to the outer wall of the second round rod 310; a threaded groove 312 is provided on the outer wall of the annular shell 311; a torsion ring 350 is screwed onto the outer wall of the threaded groove 312 to limit one end of the annular shell 311; and a ring frame 320 is fixed to the outer wall of one end of the annular shell 311. Several square slots 321 are formed at equal angles around its axis. A spring 323 is fixed to the inner wall of the annular shell 311. A ring frame 322 is fixedly connected to one end of the spring 323. The outer wall of the ring frame 322 is slidably connected to the outer wall of the annular shell 311. The ring frame 331 rotates on the outer wall of the ring frame 322. Several square blocks 333 are fixedly connected to the outer wall of one end of the ring frame 331 at equal angles around its axis. The outer wall of the square blocks 333 is inserted into the square slots 321. Several square grooves 334 are equally spaced around the axis of the outer wall of the ring frame 331 at the other end. An L-shaped frame 332 is fixedly connected to the outer wall of the ring frame 331, and its spring 340 is fixed to the outer wall of the ring frame 322. The ring frame 341 is fixedly connected to one end of the spring 340. The outer wall of the ring frame 341 is slidably connected to the outer wall of the ring shell 311. A ring frame 342 is rotatably connected to the outer wall of the ring frame 341, and the outer wall of the ring frame 342 is circumferentially connected around its axis. Several square blocks 2 343 are fixedly connected at equal angles. The outer wall of square block 2 343 is inserted into the inside of square groove 2 334. The L-shaped frame 3 344 is fixed on the outer wall of ring frame 5 342. Its sliding groove 1 360 is fixed to the outer wall of rotating seat 120. An inclined block 2 361 is slidably inserted inside the sliding groove 1 360. A square groove 3 362 is opened on the outer wall of the inclined block 2 361. A spring 5 363 is fixedly connected between the outer wall of the inclined block 2 361 and the inner wall of the sliding groove 1 360.

[0058] In practice, when personnel are soldering pins to a specific area of ​​the circuit board and need to flip the circuit board, the flip angle adjustment mechanism 300 can be operated in advance to adjust the angle. According to the first angle to be flipped, press and pull the ring frame 342 towards one end of the round rod 310 to separate the square block 343 from the square slot 334. Adjust the position of the L-shaped frame 344 according to the degree reading of the reference angle measuring disc 121. After the adjustment is completed, release the ring frame 342, and the spring 340 will cause the square block 343 to insert into the square slot 334. Limit the position of ring frame 5 342. According to the second angle to be flipped, press ring frame 331 and pull it towards one end of round rod 2 310 to separate block 1 333 from square groove 1 321. Adjust the position of L-shaped frame 2 332 with reference angle measuring disc 121. After adjustment, release ring frame 331 so that block 1 333 is inserted into square groove 1 321. Limit the position of ring frame 331. After completing all adjustments, twist the torsion ring 350 to engage with the threaded groove 312 so that the torsion ring 350 is tightly attached to the surface of ring frame 5 342. During soldering, by moving L-shaped bracket 2 (332) or L-shaped bracket 3 (344) to engage with square slot 3 (362), the circuit board can be quickly and accurately flipped according to a preset angle. When flipping is not needed, press and slide the inclined block 2 (361) into the slide groove 1 (360), causing square slot 3 (362) to separate from L-shaped bracket 2 (332) or L-shaped bracket 3 (344). The circuit board is then flipped back to its original position by the spring 2 (411), and square slot 3 (362) engages with the corresponding L-shaped bracket 2 (332) or L-shaped bracket 3 (344) for limiting its position. This can be achieved by setting... The flip angle adjustment mechanism 300 allows for pre-setting the flip angle of the circuit board, enabling quick and precise flipping during operation to meet personnel's operational needs. Especially when soldering pins on the same batch of circuit boards, personnel only need to adjust the angle once to quickly and accurately flip the same batch of circuit boards, effectively improving personnel's operational efficiency and work efficiency. In addition, the torsion ring 350 allows personnel to quickly adjust and fix the flip angle adjustment mechanism 300, effectively improving the convenience of operation.

[0059] Example 2

[0060] like Figure 7As shown, in this embodiment, the insertion mechanism 400 includes the following parts: its inclined frame 410 is fixed to the outer wall of the second round rod 310, and a coil spring 411 is fixedly connected between the outer wall of the inclined frame 410 and the outer wall of the rotating seat 120; a sliding groove 416 is provided on the outer wall of the inclined frame 410; two sets of the third round rod 417 are provided, rotating at equal intervals inside the inclined frame 410; a round roller 413 is fixedly connected to one end of the outer wall of the third round rod 417, the round roller 413 is made of rubber; and another round roller 413 is fixedly connected to the other end of the third round rod 417. One end is fixedly connected to a spur gear 412, which is used to limit the rotation of the circular roller 413. Its square plate 414 is fixed on the inner wall of the inclined frame 410. Elastic pads 415 are fixedly connected to the outer walls on both sides of the square plate 414. Two toothed plates 420 are provided, which slide on the inner wall of the inclined frame 410 on both sides of the square plate 414 and can engage with the spur gear 412. Its U-shaped frame 430 slides on one side of the outer wall of the inclined frame 410. Inclined blocks 431 are fixedly connected to both sides of the outer wall of the U-shaped frame 430.

[0061] In practice, when the circuit board needs to be moved horizontally according to work requirements, press and push the U-shaped frame 430 towards the toothed plate 420, so that the inclined block 431 contacts the toothed plate 420. The toothed plate 420 is squeezed and separates from the spur gear 412, and the roller 413 is released from its limit. The operator pushes the circuit board to move horizontally, and the roller 413 also rotates accordingly. After the position is adjusted, push the U-shaped frame 430 to move to one side. Due to the rebound of the elastic pad 415, the toothed plate 420 and the spur gear 412 are inserted, limiting the roller 413 and the circuit board. With the U-shaped frame 430, the operator only needs to push the U-shaped frame 430 to release the horizontal movement limit of the circuit board. After adjustment, push the U-shaped frame 430 back to its original position to limit the circuit board. This effectively improves the operating efficiency and the convenience of horizontal movement. In addition, the rubber material used for the roller 413 has high resistance and can also prevent damage to the contact surface of the circuit board.

[0062] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circuit board positioning fixture for pin soldering, characterized in that, The utility model relates to a circuit board angle adjusting device, including: Limiting mechanism (100) including H-shaped slide (110), and the outer wall of H-shaped slide (110) is opened with a plurality of arc grooves (111) at equal intervals; Rotary seat one (120) is provided with two, one is fixed in H-shaped slide (110) one end, the other is sliding in the outer wall of H-shaped slide (110); Clamping mechanism (200) is fixed on the outer wall of one of rotary seat one (120), and one of rotary seat one (120) can be limited; Turnover angle adjusting mechanism (300) is fixed in rotary seat one (120) one end, and the turnover angle of circuit board can be adjusted quickly; Plug-in mechanism (400) is fixed in turnover angle adjusting mechanism (300) one end, and circuit board can be limited.

2. The circuit board limiting tool for stitch welding according to claim 1, wherein Limiting mechanism (100) includes: Angle measuring disc (121) is fixed in rotary seat one (120) one end outer wall; Spring one (130) is fixed between the outer wall of one of rotary seat one (120) and the inner wall of H-shaped slide (110); Square hole (122) is opened on the outer wall of one of rotary seat one (120).

3. The circuit board limiting tool for stitch welding according to claim 2, wherein Clamping mechanism (200) includes: Rotary seat two (210) is fixed on the outer wall of rotary seat one (120), and rotary seat two (210) is rotatably connected with L-shaped frame one (212), and the outer wall of L-shaped frame one (212) is fixedly connected with round rod one (211); Spring one (213) is fixed between the inner wall of rotary seat two (210) and the outer wall of L-shaped frame one (212).

4. The circuit board limiting tool for stitch welding according to claim 3, wherein Clamping mechanism (200) includes: Slide rail (220) is fixed on the outer wall of rotary seat two (210), and the slide rail (220) is slidably inserted with inclined block one (222); Spring two (221) is fixed between the outer wall of inclined block one (222) and the inner wall of slide rail (220).

5. The circuit board limiting tool for stitch welding according to claim 4, wherein Turnover angle adjusting mechanism (300) includes: Round rod two (310) is rotatably connected with the outer wall of rotary seat one (120), and the outer wall of round rod two (310) is fixedly connected with ring shell (311), and the outer wall of ring shell (311) is opened with thread groove (312); Torsion ring (350) is screwed on the outer wall of thread groove (312).

6. The circuit board limiting tool for stitch welding according to claim 5, wherein Turnover angle adjusting mechanism (300) includes: Ring frame one (320) is fixed in ring shell (311) one end outer wall, and the outer wall of ring frame one (320) is opened with a plurality of square grooves one (321) at equal angles around its axis; Spring three (323) is fixed in the inner wall of ring shell (311), and one end of spring three (323) is fixedly connected with ring frame two (322), and the outer wall of ring frame two (322) is slidably connected with the outer wall of ring shell (311); Ring frame three (331) is rotatable on the outer wall of ring frame two (322), and one end of ring frame three (331) is fixedly connected with a plurality of square blocks one (333) at equal angles around its axis, and the outer wall of square block one (333) is plugged with square groove one (321), and the other end of ring frame three (331) is opened with a plurality of square grooves two (334) at equal angles around its axis, and the outer wall of ring frame three (331) is fixedly connected with L-shaped frame two (332); Spring four (340) is fixed on the outer wall of ring frame two (322), one end of spring four (340) is fixedly connected with ring frame four (341), the outer wall of ring frame four (341) is slidably connected with the outer wall of ring shell (311), the outer wall of ring frame four (341) is rotatably connected with ring frame five (342), a plurality of square blocks two (343) are fixedly connected on the outer wall of ring frame five (342) at equal angles around the axis line, and the outer wall of square block two (343) is inserted and matched with the inner wall of square groove two (334); L-shaped frame three (344) is fixed on the outer wall of ring frame five (342); Sliding groove one (360) is fixed on the outer wall of rotating seat one (120), and inclined block two (361) is slidably inserted in the inner wall of sliding groove one (360), square groove three (362) is formed in the outer wall of inclined block two (361), and spring five (363) is fixedly connected between the outer wall of inclined block two (361) and the inner wall of sliding groove one (360).

7. The circuit board limiting tool for stitch welding according to claim 6, wherein The plug-in mechanism (400) comprises: Inclined frame (410) is fixed on the outer wall of round rod two (310), and coil spring two (411) is fixedly connected between the outer wall of inclined frame (410) and the outer wall of rotating seat one (120), and sliding groove two (416) is formed in the outer wall of inclined frame (410); Two groups of round rods three (417) are rotatably arranged in the inner wall of inclined frame (410) at equal intervals, one end of the outer wall of round rod three (417) is fixedly connected with round roller (413), and the other end of the outer wall of round rod three (417) is fixedly connected with straight gear (412); Square plate (414) is fixed on the inner wall of inclined frame (410), and elastic gasket (415) is fixedly connected to the outer wall of square plate (414) on both sides; Two tooth plates (420) are slidably arranged on the inner wall of inclined frame (410) on both sides of square plate (414); U-shaped frame (430) is slidably arranged on the outer wall of one side of inclined frame (410), and inclined block three (431) is fixedly connected to the outer wall of U-shaped frame (430) on both sides.

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