PCB spraying clamp
By designing a PCB board spraying fixture using L-shaped clamp and spring structure, the problem of uneven spraying in the prior art is solved, and uniform clamping and single-use spraying of the four sides of the PCB board is achieved, and product quality and production efficiency are improved.
Patent Information
- Application Number
- CN202421256756.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Existing ordinary fixtures cannot be completed at one time when spraying PCB boards, resulting in uneven paint materials, increasing process and labor costs, and affecting product quality.
A PCB board spraying fixture is designed, adopting an L-shaped clamp structure, and the four sides of the PCB board are clamped and fixed by the elastic force of the first and second springs to ensure that both the front and back plate surfaces can be sprayed at one time.
The four sides of the PCB board are uniformly clamped, avoiding the need for re-spraying, improving the uniformity of the paint and product quality, and reducing process and labor costs.
Smart Images
Figure CN222678469U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of PCB board processing equipment, and in particular to a PCB board spraying fixture. Background Art
[0002] The Chinese name of PCB circuit board is printed circuit board, which is the carrier of electrical connection of electronic components. During the production and processing of PCB board, the surface of PCB board needs to be painted to make the PCB board moisture-proof, salt spray-proof and mildew-proof so as to adapt to different working environments.
[0003] When spraying PCB boards, ordinary clamps are used in the industry. When such ordinary clamps are used for spraying, the clamps are clamped on the surface of the PCB boards. Therefore, spraying cannot be completed in one time, and re-spraying is required at the clamping position of the clamps. This not only wastes paint and increases the labor cost of the process, but also causes uneven and poor consistency of the paint sprayed on the PCB board surface twice during re-spraying, resulting in poor product quality. Therefore, the present application proposes a PCB board spraying clamp. Utility Model Content
[0004] The purpose of the present application is to provide a PCB spraying fixture to solve the problem that after the existing fixture clamps the PCB board, the clamping position needs to be sprayed a second time, resulting in uneven paint and poor effect.
[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:
[0006] A PCB spraying fixture, comprising:
[0007] A transverse frame, wherein opposite sides thereof are connected to a transverse bar, two movable blocks are slidably sleeved on the transverse bar, and a first spring sleeved on the transverse bar is installed between the opposite sides of the two movable blocks and the inner wall of the transverse frame;
[0008] Two clamps are respectively arranged on two movable blocks, and the clamps include a vertical part and a horizontal part connected to each other. A groove is opened on the vertical part, a vertical rod is arranged in the groove, a pressure plate is slidably arranged on the vertical rod, and a second spring mounted on the vertical rod is installed between the top of the pressure plate and the inner wall of the groove.
[0009] Furthermore, a shaft rod is rotatably provided on the horizontal frame, a gear is fixedly provided on the shaft rod, and racks are connected to the two movable blocks, and the two racks are meshed with the gear teeth.
[0010] Furthermore, the cross bar adopts a bidirectional screw rod and rotates through opposite sides of the inner wall of the cross frame. Both ends of the cross bar are threadedly sleeved with a first adjustment block, and the first spring is located between the movable block and the first adjustment block.
[0011] Furthermore, the vertical rod rotates and passes through the vertical portion, a second adjustment block is threadedly sleeved on the vertical rod, and the second spring is located between the second adjustment block and the pressure plate.
[0012] Furthermore, it also includes a connecting plate, the bottom of which is provided with a T-shaped slot, and the two pressing plates are both constructed with T-shaped blocks, and the two T-shaped blocks are both plug-fitted with the T-shaped slot.
[0013] Furthermore, a hanging ring is provided on the transverse frame, and a hook which cooperates with the hanging ring is hinged on the connecting plate.
[0014] Furthermore, rubber pads are arranged on the vertical portion, the horizontal portion and the pressure plate.
[0015] Furthermore, a surface of the rubber pad in contact with the PCB board is structured with saw teeth in an array.
[0016] The beneficial effects of this application are as follows:
[0017] In the present application, the clamping plate is in an L-shaped structure, which has a vertical portion and a transverse portion. The two vertical portions clamp and resist the left and right sides of the PCB board under the elastic force of the first spring, and the two transverse portions cooperate with the two pressure plates to clamp and resist the upper and lower sides of the PCB board under the elastic force of the second spring. It is not only suitable for clamping PCB boards of different sizes, but also only clamps and fixes the four sides of the PCB board. The front and back surfaces will not be blocked, and both sides can be sprayed at one time without the need for re-spraying, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional structural diagram of this application;
[0019] Figure 2 It is a three-dimensional structural diagram of part of this application;
[0020] Figure 3 It is another three-dimensional structural diagram of this application;
[0021] Figure 4 It is another three-dimensional structural diagram of the present application;
[0022] 1. Horizontal frame; 2. Horizontal bar; 3. Movable block; 4. First spring; 5. Clamp; 6. Axle rod; 7. Gear; 8. Rack; 9. First adjusting block; 10. Second adjusting block; 11. Connecting plate; 12. T-block; 13. Hanging ring; 14. Hook; 15. Rubber pad; 501. Vertical portion; 502. Horizontal portion; 503. Groove; 504. Vertical bar; 505. Pressing plate; 506. Second spring. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0024] like Figure 1-Figure 4 As shown, a PCB board spraying fixture proposed in one embodiment of the present application includes:
[0025] A transverse frame 1 is connected to a transverse bar 2 on opposite sides thereof, two movable blocks 3 are slidably sleeved on the transverse bar 2, and first springs 4 sleeved on the transverse bar 2 are installed between the opposite sides of the two movable blocks 3 and the inner wall of the transverse frame 1. Preferably, the opposite sides of the movable blocks 3 are overlapped with the opposite sides of the inner wall of the transverse frame 1; two clamping plates 5 are respectively arranged on the two movable blocks 3, and the clamping plates 5 include a vertical portion 501 and a horizontal portion 502 connected thereto. Preferably, when spraying, the transverse frame 1 can be placed on a bracket and sprayed manually, or hung on a transmission chain, and can be transmitted to the spraying machine through the chain. Spraying in the paint room, no matter which method is used, the clamping plate 5 is set vertically. When clamping the PCB board, first pull the two clamping plates 5 away from each other, and squeeze the two first springs 4 respectively, then stand the PCB board upright between the two clamping plates 5, so that the bottom edge of the PCB board overlaps the two horizontal parts 502, and then loosen the two clamping plates 5. Under the elastic force of the first spring 4, the two vertical parts 501 respectively contact and overlap with the side edges of the PCB board. A groove 503 is opened on the vertical part 501, and a vertical rod 504 is arranged in the groove 503. The vertical rod 504 slides up A pressing plate 505 is provided, and a second spring 506 sleeved on the vertical rod 504 is installed between the top of the pressing plate 505 and the inner wall of the groove 503. When placing the PCB board, first slide the two pressing plates 505 upward and squeeze the two second springs 506. When the PCB board is clamped by the two vertical parts 501, loosen the two pressing plates 505. Under the elastic force of the two second springs 506, the two pressing plates 505 respectively contact the two ends of the top edge of the PCB board, and cooperate with the two horizontal parts 502 to contact and clamp the upper and lower sides of the PCB board. The overall structure of the device The horizontal portion 502 of the clamping plate 5 supports the PCB board, and cooperates with the pressing plate 505 to clamp and resist the upper and lower side edges of the PCB board. The two vertical portions 501 clamp and resist the left and right side panels of the PCB board. The elastic force of the first spring 4 and the second spring 506 is used to clamp and fix the upper and lower and left and right four sides of the PCB board. It is not only suitable for clamping and fixing PCB boards of different sizes, but also only clamps and fixes the four side edges of the PCB board, and the front and back surfaces will not be blocked, and both sides can be sprayed at one time without re-spraying, thereby improving practicality.
[0026] like Figure 2As shown, in some embodiments, a shaft rod 6 is rotatably provided on the transverse frame 1, a gear 7 is fixed on the shaft rod 6, and racks 8 are connected to the two movable blocks 3, and the two racks 8 are meshed with the teeth of the gear 7. Preferably, a connecting frame is provided in the top middle section of the transverse frame 1, and the shaft rod 6 is rotatably provided on the connecting frame. Through the meshing of the teeth of the two racks 8 and the gear 7, only one of the clamps 5 needs to be pulled to drive the other clamp 5 to move synchronously in the opposite direction, which is more convenient when clamping or releasing the fixation, thereby improving the practicality of the clamp as a whole.
[0027] like Figure 2 As shown, in some embodiments, the cross bar 2 adopts a bidirectional screw rod and rotates through the opposite sides of the inner wall of the cross frame 1. Both ends of the cross bar 2 are threadedly sleeved with a first adjustment block 9, and the first spring 4 is located between the movable block 3 and the first adjustment block 9. When the size of the PCB board is smaller, the distance between the two clamping plates 5 is closer, and the elastic clamping force of the first spring 4 is smaller at this time. By constructing the cross bar 2 as a bidirectional screw rod, the cross bar 2 is twisted to rotate, and under the action of the bidirectional thread, the two first adjustment blocks 9 can be driven to approach synchronously, so that the first adjustment block 9 compresses the first spring 4, thereby changing the elastic force of the first spring 4, so that the PCB board can be effectively and firmly clamped.
[0028] like Figure 3 As shown, in some embodiments, the vertical rod 504 rotates to pass through the vertical portion 501, and a second adjustment block 10 is threadedly sleeved on the vertical rod 504. The second spring 506 is located between the second adjustment block 10 and the pressure plate 505. When the size of the PCB board is smaller, the distance between the pressure plate 505 and the horizontal portion 502 is closer, and the elastic resistance force of the second spring 506 is smaller. The vertical rod 504 is twisted to rotate, and under the action of the thread, the second adjustment block 10 is driven to move downward, so that the second adjustment block 10 compresses the second spring 506, thereby changing the elastic resistance force of the second spring 506, so that the PCB board is effectively and firmly clamped.
[0029] like Figure 4 As shown, in some embodiments, a connecting plate 11 is further included, a T-shaped slot is provided at the bottom of the connecting plate 11, and T-shaped blocks 12 are constructed on the two pressure plates 505. The two T-shaped blocks 12 are plugged into the T-shaped slots. The connecting plate 11 is set, and the connecting plate 11 is connected to the two pressure plates 505 through the sliding fit of the T-shaped slots and the T-shaped blocks 12. When the two clamps 5 move away from each other, the two T-shaped blocks 12 slide along the two ends of the T-shaped slots respectively, so that there is no interference with the movement of the two clamps 5. At the same time, when the connecting plate 11 is moved up and down, the two pressure plates 505 can be driven to move synchronously, thereby improving the convenience of fixing or releasing the PCB board.
[0030] like Figure 1 and Figure 4As shown, in some embodiments, a hanging ring 13 is provided on the horizontal frame 1, and a hook 14 is hinged on the connecting plate 11 to cooperate with the hanging ring 13. When the spacing between the two clamping plates 5 is adjusted to clamp and fix the PCB board, the hook 14 can be hung on the hanging ring 13, so that the two pressing plates 505 can be temporarily fixed on the horizontal frame 1. After the two clamping plates 5 are adjusted to their positions and the PCB board is clamped and fixed, the hanging cooperation between the hook 14 and the hanging ring 13 is released, and the pressing plate 505 is used to press and hold the PCB board, thereby further improving the convenience of fixing or releasing the fixation.
[0031] like Figure 1 As shown, in some embodiments, rubber pads 15 are provided on the vertical portion 501, the horizontal portion 502 and the pressure plate 505. The rubber pads 15 can effectively protect the four sides of the PCB board to avoid damage caused by the clamping force, thereby improving practicality.
[0032] like Figure 1 As shown, in some embodiments, a surface of the rubber pad 15 in contact with the PCB board is configured with a serration array. Since the PCB board is relatively thin, the serrations are configured on the rubber pad 15 to increase the contact friction between the rubber pad 15 and the PCB board, thereby further improving the stability of the PCB board clamping and fixing.
[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A PCB spraying fixture, characterized in that: include: A transverse frame (1) is connected to a transverse rod (2) on opposite sides thereof, two movable blocks (3) are slidably sleeved on the transverse rod (2), and a first spring (4) sleeved on the transverse rod (2) is installed between the opposite sides of the two movable blocks (3) and the inner wall of the transverse frame (1); Two clamping plates (5) are respectively arranged on the two movable blocks (3), and the clamping plates (5) include a vertical portion (501) and a horizontal portion (502) connected to each other. A groove (503) is provided on the vertical portion (501), a vertical rod (504) is arranged in the groove (503), a pressure plate (505) is slidably arranged on the vertical rod (504), and a second spring (506) sleeved on the vertical rod (504) is installed between the top of the pressure plate (505) and the inner wall of the groove (503).
2. The PCB spraying fixture according to claim 1, characterized in that: A shaft (6) is rotatably arranged on the transverse frame (1), a gear (7) is fixedly arranged on the shaft (6), and racks (8) are connected to the two movable blocks (3), and the two racks (8) are meshed with the teeth of the gear (7).
3. The PCB spraying fixture according to claim 1, characterized in that: The cross bar (2) adopts a bidirectional screw rod and rotates through the opposite sides of the inner wall of the cross frame (1). Both ends of the cross bar (2) are threadedly sleeved with a first adjustment block (9), and the first spring (4) is located between the movable block (3) and the first adjustment block (9).
4. The PCB spraying fixture according to claim 1, characterized in that: The vertical rod (504) rotates to penetrate the vertical portion (501), a second adjustment block (10) is threadedly sleeved on the vertical rod (504), and a second spring (506) is located between the second adjustment block (10) and the pressure plate (505).
5. The PCB spraying fixture according to claim 1, characterized in that: It also comprises a connecting plate (11), the bottom of which is provided with a T-shaped slot, and the two pressing plates (505) are both provided with a T-shaped block (12), and the two T-shaped blocks (12) are both plug-fitted into the T-shaped slot.
6. The PCB spraying fixture according to claim 5, characterized in that: The horizontal frame (1) is provided with a hanging ring (13), and the connecting plate (11) is hinged with a hook (14) that is matched with the hanging ring (13).
7. The PCB spraying fixture according to claim 1, characterized in that: The vertical portion (501), the horizontal portion (502) and the pressing plate (505) are all provided with rubber pads (15).
8. The PCB spraying fixture according to claim 7, characterized in that: The surface of the rubber pad (15) in contact with the PCB board is structured with saw teeth in an array.