PCB wave-soldering carrier

Abstract

The utility model provides a PCB wave-soldering carrier, which is characterized in that one side, far away from a clamping column, of a convex block is connected with a sleeving block in a sliding and nesting manner, one end, far away from the convex block, of the sleeving block is provided with a limiting ring, an inclined rod is arranged in the sleeving block, one end, close to the convex block, of the inclined rod is sleeved with a sliding column in a sliding manner, and the sliding column slides in a sliding groove of the convex block; a pull rope is embedded in the lower end of the sliding column, a sliding block is arranged at the lower end of the pull rope, the inclined rod in the limiting ring slides towards one end of the sliding column, the inclined rod drives the sliding column to slide upwards in the sliding groove of the protruding block, and the sliding column drives the sliding block to slide through the pull rope. The sliding column can drive the sleeving block to slide in a return mode through the inclined rod, and then the sleeving block can drive the limiting ring to slide towards one side of the PCB, so that the limiting ring can limit and fix the PCB according to the size of the PCB.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit technology, and more specifically to a wave soldering carrier for PCB boards. Background Technology

[0002] During wave soldering, the high-temperature liquid tin exerts a certain impact and buoyancy on the PCB board. Wave soldering carriers can firmly fix the PCB board in a specific position to prevent it from shifting, shaking or floating during the soldering process, thus ensuring the accuracy and stability of the soldering. This paper provides technical inspiration for wave soldering carriers.

[0003] The study of wave soldering carriers revealed the following problems:

[0004] Because PCBs come in different models and sizes, wave soldering carriers need to be adjusted to limit their positions according to the size of the PCB to facilitate subsequent soldering. This results in the wave soldering carrier being unable to quickly limit and fix the PCB according to its size.

[0005] Currently, CN202420517190.3 discloses a wave soldering carrier for PCB boards. This utility model includes a base plate and an upper cover plate located at the top of the base plate. A pressure groove is formed on the upper surface of the base plate, and magnetic blocks are fixedly installed at the four corners of the bottom of the pressure groove. A positioning groove is formed at one end of the magnetic block. The magnetic blocks magnetically attract and install the upper cover plate in the positioning groove. The bottom of the pressure groove is formed with a placement groove for placing the PCB board to be wave soldered. The bottom of the placement groove is formed with several welding holes. The positions of the welding holes are adapted to the wave soldering area of ​​the PCB board placed in the placement groove. The welding holes are used to expose the wave soldering area of ​​the PCB board. The base plate and the upper cover plate are used to fix and clamp the PCB board to be soldered. The welding holes at the bottom of the placement groove expose the area of ​​the PCB board to be soldered, ensuring correct contact between the PCB board and the solder wave, thereby improving the soldering quality. The base plate covers the non-soldering area, further improving the soldering quality and the service life of the PCB board.

[0006] This invention mainly solves the problem that wave soldering carriers cannot quickly limit and fix PCB boards according to their size. Utility Model Content

[0007] The present invention aims to solve the problems mentioned in the background, thereby providing a wave soldering carrier for PCB boards.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a PCB wave soldering carrier, including a carrier plate, an air bladder at the lower end of the carrier plate, pads on both sides of the upper end of the air bladder, and pins distributed inside the carrier plate, with a protrusion on one side of each pin.

[0009] Furthermore, the lower end of the carrier plate has a hole, and the airbag is located inside the hole, with the airbag being concave in shape.

[0010] Furthermore, the washer is arc-shaped with an arc angle of 45-150°, and the washer is made of rubber.

[0011] Furthermore, the locking pins and protrusions are matched and distributed inside the carrier plate.

[0012] Furthermore, a groove is provided on the side of the protrusion away from the locking post, and the grooves are arranged in a vertical direction.

[0013] Furthermore, a fitting block is slidably nested on the side of the protrusion away from the locking post. A limiting ring is provided at the end of the fitting block away from the protrusion. An inclined rod is provided inside the fitting block. A sliding post is slidably fitted at the end of the inclined rod near the protrusion. The sliding post slides inside the groove of the protrusion. A pull rope is embedded at the lower end of the sliding post. A slider is provided at the lower end of the pull rope.

[0014] Furthermore, the end of the assembly block near the protrusion is provided with a groove, the groove of the assembly block and the protrusion slide and nest horizontally, and the limiting ring is set in an arc shape, forming a limiting fit with the outer side of the PCB board.

[0015] Furthermore, the inclined rod is tilted vertically at 45-90°, with one end extending into the groove of the protrusion and the other end embedded in the inner wall of the mounting block.

[0016] Furthermore, the sliding column, pull rope, and slider are arranged vertically in sequence. When the sliding column slides upward, it is in a rotating sliding state, and the slider weighs 300-500g.

[0017] 1. This type of PCB wave soldering carrier manually places the PCB inside the carrier. The lower end of the PCB is pressed against the upper end of the spacer ring, causing the spacer ring to bend downwards. Please refer to the instruction manual appendix. Figure 2 As shown, at this time, the upper end of the washer ring is in contact with the lower end of the PCB board. The rubber material of the washer ring can increase the friction between the washer ring and the PCB board, and help the lower end of the PCB board to form a limit. All four sides of the PCB board are placed on one side of the pin and the protrusion.

[0018] 2. This type of PCB wave soldering carrier has a limiting ring that fits snugly against the outer side of the PCB. Therefore, after the PCB is placed on one side of the limiting ring, it is pressed against that side. The limiting ring then causes the mounting block to slide towards the side of the protrusion. At this time, the inclined rod inside the limiting ring slides towards one end of the sliding post. The inclined rod causes the sliding post to slide upward inside the groove of the protrusion. The sliding post drives the slider to slide through the pull rope. After the PCB is placed, the weight of the slider and the sliding post causes the sliding post to slide back to its original position through the inclined rod. This allows the mounting block to drive the limiting ring to slide towards one side of the PCB, thus enabling the limiting ring to fix the PCB according to its size. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the airbag structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the modular component structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the bump assembly structure of this utility model.

[0023] Figure 1-4 In the middle: 1-carrier plate, 101-airbag, 102-shield ring, 103-clamping post, 2-protrusion, 201-sliding post, 202-diagonal rod, 203-pull rope, 204-slider, 3-set block, 301-limiting ring. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 4 In the embodiments of this utility model,

[0026] Example 1: A PCB wave soldering carrier includes a carrier plate 1. An airbag 101 is provided at the lower end of the carrier plate 1. Gaskets 102 are inlaid on both sides of the upper end of the airbag 101. Stickers 103 are distributed inside the carrier plate 1. A protrusion 2 is provided on one side of the stickers 103.

[0027] Wherein: a hole is opened at the lower end of the inner side of the carrier plate 1, and the airbag 101 is located inside the hole and the airbag 101 is concave;

[0028] The washer 102 is arc-shaped with an arc angle of 45-150°, and the washer 102 is made of rubber.

[0029] The locking post 103 and the protrusion 2 are matched and distributed inside the carrier plate 1;

[0030] The protrusion 2 has a groove on the side away from the locking post 103. The grooves are arranged vertically. Please refer to the instruction manual for details. Figure 3 As shown;

[0031] The process involves manually placing the PCB board inside the carrier board 1. The lower end of the PCB board is pressed against the upper end of the spacer ring 102, causing the spacer ring 102 to bend downwards. Refer to the instruction manual for details. Figure 2 As shown, at this time, the upper end of the washer 102 is in contact with the lower end of the PCB board. The rubber material of the washer 102 can increase the friction between the washer 102 and the PCB board, and help the lower end of the PCB board to form a limit. All four sides of the PCB board are placed on one side of the card post 103 and the protrusion 2.

[0032] Example 2: Refer to the attached instruction manual Figure 1-4 The difference between Embodiment 2 and Embodiment 1 is that a sleeve block 3 is slidably nested on the side of the protrusion 2 away from the locking post 103. A limiting ring 301 is provided at the end of the sleeve block 3 away from the protrusion 2. An inclined rod 202 is provided inside the sleeve block 3. A sliding post 201 is slidably fitted at the end of the inclined rod 202 close to the protrusion 2. The sliding post 201 slides inside the groove of the protrusion 2. A pull rope 203 is embedded at the lower end of the sliding post 201. A slider 204 is provided at the lower end of the pull rope 203.

[0033] Among them: the end of the mounting block 3 near the protrusion 2 is provided with a groove, the groove of the mounting block 3 and the protrusion 2 slide and nest horizontally, the limiting ring 301 is set in an arc shape, and the limiting ring 301 forms a limiting fit with the outer side of the PCB board;

[0034] The limiting ring 301 is arc-shaped. By setting the shape of the limiting ring 301, the contact area between the limiting ring 301 and the PCB board can be reduced, thereby facilitating wave soldering of the PCB board.

[0035] The diagonal rod 202 is inclined at 45-90° in the vertical direction. One end of the diagonal rod 202 extends into the groove of the protrusion 2, and the other end of the diagonal rod 202 is embedded in the inner wall of the sleeve block 3.

[0036] The sliding column 201, the pull rope 203, and the slider 204 are arranged vertically in sequence. When the sliding column 201 slides upward, the sliding column 201 is in a rotating sliding state. The slider 204 weighs 300-500g.

[0037] Specifically, the limiting ring 301 forms a limiting fit with the outer side of the PCB board. Therefore, after the PCB board is placed on one side of the limiting ring 301, the PCB board is squeezed to one side of the limiting ring 301. The limiting ring 301 drives the mounting block 3 to slide towards one side of the protrusion 2. At this time, the inclined rod 202 inside the limiting ring 301 slides towards one end of the sliding column 201. The inclined rod 202 drives the sliding column 201 to slide upward inside the groove of the protrusion 2. The sliding column 201 drives the slider 204 to slide through the pull rope 203. After the PCB board is placed, the weight of the slider 204 and the sliding column 201 allows the sliding column 201 to drive the mounting block 3 to slide back to its original position through the inclined rod 202. In turn, the mounting block 3 can drive the limiting ring 301 to slide towards one side of the PCB board, so that the limiting ring 301 can limit and fix the PCB board according to the size of the PCB board.

[0038] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A PCB board wave soldering carrier comprising a carrier plate (1), characterized in that: The lower end of the carrier plate (1) is provided with an airbag (101), and the upper end of the airbag (101) is inlaid with pad rings (102) on both sides. The carrier plate (1) is provided with locking posts (103), and a protrusion (2) is provided on one side of the locking post (103). The lower end of the carrier plate (1) has a hole, and the airbag (101) is located inside the hole. The airbag (101) is concave. The washer ring (102) is arc-shaped with an arc angle of 45-150°; The locking post (103) and the protrusion (2) are matched and distributed inside the carrier plate (1).

2. The PCB board wave soldering carrier of claim 1, wherein: The protrusion (2) has a groove on the side away from the locking post (103), and the grooves are arranged in a vertical direction.

3. The PCB board wave soldering carrier of claim 1, wherein: The protrusion (2) is slidably nested with a fitting block (3) on the side away from the locking post (103). The fitting block (3) is provided with a limiting ring (301) at the end away from the protrusion (2). The fitting block (3) is provided with a diagonal rod (202) inside. The end of the diagonal rod (202) close to the protrusion (2) is slidably fitted with a sliding post (201). The sliding post (201) slides inside the groove of the protrusion (2). The lower end of the sliding post (201) is inlaid with a pull rope (203). The lower end of the pull rope (203) is provided with a slider (204).

4. The PCB board wave soldering carrier of claim 3, wherein: The fitting block (3) has a groove at one end near the protrusion (2). The groove of the fitting block (3) and the protrusion (2) slide and nest horizontally. The limiting ring (301) is arc-shaped and forms a limiting fit with the outer side of the PCB board.

5. The PCB board wave soldering carrier of claim 3, wherein: The inclined rod (202) is inclined at 45-90° in the vertical direction. One end of the inclined rod (202) extends into the groove of the protrusion (2), and the other end of the inclined rod (202) is embedded in the inner wall of the sleeve block (3).

6. The PCB board wave soldering carrier of claim 3, wherein: The sliding column (201), the pull rope (203), and the slider (204) are arranged vertically in sequence. When the sliding column (201) slides upward, the sliding column (201) is in a rotating sliding state.

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