Clamp for assembling circuit board

Abstract

The utility model belongs to the technical field of circuit board assembly clamps, and particularly relates to a circuit board assembly clamp which comprises an operation table and an installation base detachably connected to the operation table. The top plate and the bottom plate extend in the same direction and are perpendicularly connected to the top and the bottom of the movable plate, a pressing plate is arranged between the top plate and the bottom plate, a cylinder is fixedly arranged at the middle section of the top face of the pressing plate, and a first air bag is arranged in the cylinder; a screw is rotatably arranged on the top plate and matched with a screw hole preset in a connecting plate, the connecting plate is vertically and fixedly connected with the top of a crimping pipe, a second air bag is arranged at the top end of the crimping pipe, the bottom end of the crimping pipe is in sliding fit with the cylinder, and the first air bag and the second air bag are connected and communicated through an air pipe in the crimping pipe. According to the utility model, a clamp in the prior art is improved, and the circuit board is effectively prevented from being excessively crimped on the basis of providing stable clamping for the circuit board.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board assembly fixtures, and in particular relates to a fixture for circuit board assembly. Background Art

[0002] During manual assembly and subsequent quality inspection, circuit boards require clamps to hold their ends in place to maintain stability. Existing clamps are relatively simple, often using crimping to hold the ends of the circuit boards. However, different circuit boards vary in material, thickness, and pressure tolerance. Excessive crimping can easily cause deformation or even damage to the board. This requires constant focus and judgment, making the clamping process cumbersome and inefficient. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a clamp for circuit board assembly. The present invention improves the clamp in the existing technology and effectively prevents excessive crimping of the circuit board while providing stable clamping for the circuit board.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A clamp for assembling a circuit board comprises an operating table and a mounting base detachably connected to the operating table, a clamping portion slidably provided at both ends of the top of the mounting base, the clamping portion comprising a movable plate and a top plate and a bottom plate extending in the same direction and perpendicularly connected to the top and bottom of the movable plate, a pressing plate provided between the top plate and the bottom plate, a cylinder fixedly provided at the middle section of the top surface of the pressing plate, and a first airbag provided inside the cylinder;

[0006] A screw is rotatably provided on the top plate and the screw cooperates with a preset screw hole on the connecting plate. The connecting plate is vertically fixedly connected to the top of the compression tube. A second airbag is provided on the top of the compression tube. The bottom end of the compression tube slides with the cylinder. The first airbag and the second airbag are connected and communicated through the air pipe in the compression tube.

[0007] Preferably, a limit block is provided at one end of the compression tube located inside the cylinder, and a flange for engaging with the limit block is provided at the top of the cylinder.

[0008] Preferably, a top contact spring is further provided in the cylinder beside the first airbag, the top of the top contact spring is connected to the bottom surface of the limit block, and the bottom is connected to the bottom surface of the cylinder.

[0009] Preferably, the top contact spring is always in a compressed state.

[0010] Preferably, the mounting seat is a hollow structure and a bidirectional screw is provided inside for rotation. A placement plate is provided at the midpoint of the top surface of the mounting seat and slideways parallel to the bidirectional screw are provided on both sides of the placement plate; the movable plate is threadedly fitted with the corresponding ends of the bidirectional screw through the slide rod passing through the corresponding slideway.

[0011] Preferably, a silicone pad layer is provided on the bottom surface of the compression plate.

[0012] The working process of this utility model is as follows:

[0013] First, place the circuit board to be clamped on the placement plate and set the two ends of the circuit board toward the movable plate respectively, then rotate the bidirectional screw to make the two movable plates move towards each other. When the end of the circuit board is placed between the crimping plate and the base plate, rotate the screw so that the connecting plate drives the crimping tube and the crimping plate to move downward. After the crimping plate crimps the circuit board, it cannot move, but the crimping tube still moves downward and the crimping tube begins to squeeze the first airbag. After the first airbag is squeezed, the internal gas flows into the second airbag through the air tube and causes the second airbag to expand. In this way, the staff can judge that the crimping plate has begun to effectively crimp and fix the end of the circuit board. Finally, stop rotating the screw to prevent the crimping plate from applying excessive pressure to the circuit board and causing damage to the circuit board.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention improves the clamp in the prior art, and effectively prevents excessive crimping of the circuit board while providing stable clamping for the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the clamp described in the specific implementation method;

[0016] Figure 2 This is a schematic structural diagram of the positional relationship between the pressing plate and the top plate described in the specific implementation method;

[0017] Figure 3 This is a schematic diagram of the internal structure of the compression tube according to the specific embodiment; DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] like Figure 1-2As shown, a clamp for assembling a circuit board includes an operating table 1 and a mounting base 2 detachably connected to the operating table 1. The mounting base 2 is a hollow structure and has a bidirectional screw 23 rotating inside. A placement plate 21 is provided at the midpoint of the top surface of the mounting base 2, and slideways 22 parallel to the bidirectional screw 23 are provided on both sides of the placement plate 21.

[0020] The movable plate 3 is screwed to the corresponding end of the bidirectional screw rod 23 through the slide rod 31 passing through the corresponding slideway 22. The top and bottom of the movable plate 3 extend in the same direction and are vertically connected to the top plate 4 and the bottom plate 6 respectively. A pressing plate 5 is provided between the top plate 4 and the bottom plate 6. The bottom surface of the pressing plate 5 is provided with a silicone pad 55. A cylinder 51 is fixedly provided at the middle section of the top surface of the pressing plate 5. A first airbag 52 is provided inside the cylinder 51. A top contact spring 54 is also provided inside the cylinder 51 on the side of the first airbag 52.

[0021] A screw 41 is rotatably provided on the top plate 4 and the screw 41 cooperates with a preset screw hole on the connecting plate 42. The connecting plate 42 is vertically fixedly connected to the top of the crimping tube 43. A second air bag 44 is provided on the top of the crimping tube 43. The bottom end of the crimping tube 43 is located in the cylinder 51 and is provided with a limit block 46. The top of the cylinder 51 is provided with a flange 53 for locking the limit block.

[0022] The first airbag 52 and the second airbag 44 are connected and communicated through the air pipe 45 in the compression tube 43. The top contact spring 54 is always in a compressed state with the top connected to the bottom surface of the limit block 46 and the bottom connected to the inner bottom surface of the cylinder 51.

[0023] The working process of this utility model is as follows:

[0024] First, place the circuit board to be clamped on the placement plate 21 and set the two ends of the circuit board toward the movable plate 3 respectively, then rotate the bidirectional screw rod 23 to make the two movable plates 3 move towards each other, when the end of the circuit board is placed between the crimping plate 5 and the base plate 6, rotate the screw rod 41 so that the connecting plate 42 drives the crimping tube 43 and the crimping plate 5 to move downward, when the crimping plate 5 cannot move after crimping the circuit board, but the crimping tube 43 still moves downward and the crimping tube 43 begins to squeeze the first air bag 52, after the first air bag 52 is squeezed, the internal gas flows into the second air bag 44 through the air pipe 45 and makes the second air bag 44 expand, so that the staff can judge that the crimping plate 5 has begun to implement effective crimping and fixation on the end of the circuit board, and finally stop rotating the screw rod 41 to prevent the crimping plate 5 from applying excessive pressure on the circuit board and causing damage to the circuit board.

Claims

1. A clamp for assembling a circuit board, comprising an operating table (1) and a mounting seat (2) detachably connected to the operating table (1), wherein clamping portions are slidably provided at both ends of the top of the mounting seat (2), and characterized in that: The clamping portion comprises a movable plate (3) and a top plate (4) and a bottom plate (6) extending in the same direction and vertically connected to the top and bottom of the movable plate (3); a pressing plate (5) is provided between the top plate (4) and the bottom plate (6); a cylinder (51) is fixedly provided at the middle section of the top surface of the pressing plate (5); and a first airbag (52) is provided inside the cylinder (51); A screw rod (41) is rotatably provided on the top plate (4) and the screw rod (41) is matched with a preset screw hole on the connecting plate (42). The connecting plate (42) is vertically fixedly connected to the top of the compression tube (43). A second air bag (44) is provided at the top of the compression tube (43). The bottom end of the compression tube (43) is slidably matched with the cylinder (51). The first air bag (52) and the second air bag (44) are connected and communicated through the air pipe (45) in the compression tube (43).

2. The jig for assembling a circuit board according to claim 1, wherein: A limit block (46) is provided at one end of the compression tube (43) located inside the cylinder (51), and a flange (53) for engaging with the limit block is provided at the top of the cylinder (51).

3. The jig for assembling a circuit board according to claim 2, wherein: A top contact spring (54) is also provided in the cylinder (51) on the side of the first air bag (52). The top of the top contact spring (54) is connected to the bottom surface of the limit block (46), and the bottom is connected to the inner bottom surface of the cylinder (51).

4. The jig for assembling a circuit board according to claim 3, wherein: The top contact spring (54) is always in a compressed state.

5. The jig for assembling a circuit board according to claim 1, wherein: The mounting seat (2) is hollow in structure and has a bidirectional screw (23) rotating inside. A placement plate (21) is provided at the midpoint of the top surface of the mounting seat (2), and slideways (22) parallel to the bidirectional screw (23) are provided on both sides of the placement plate (21). The movable plate (3) is threadedly engaged with the corresponding ends of the bidirectional screw (23) via a slideway (31) passing through the corresponding slideway (22).

6. The jig for assembling a circuit board according to claim 1, wherein: The bottom surface of the pressing plate (5) is provided with a silica gel cushion layer (55).

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