A clamp for PCB board processing

Abstract

The utility model discloses a clamp for processing a PCB board, relates to the technical field of PCB board processing, and solves the technical problem that the prior art can only be applied to PCB boards of specific sizes in the actual process, and when encountering PCB boards of different batches and different sizes, the entire clamp needs to be replaced, the operation is relatively cumbersome, and the application range is relatively narrow; the utility model comprises a base, a clamping groove arranged on the base; and a clamping mechanism, wherein the clamping mechanism comprises ball screws rotatably arranged on both sides of the base, a clamping rod 1 and a clamping rod 2 arranged in the clamping groove and respectively sleeved on two ball screws on both sides, a worm wheel sleeved at the end of each ball screw, a worm rotatably arranged in the base and meshingly connected with the worm wheel, a corner clamping piece arranged on the clamping rod 1 and the clamping rod 2, and a positioning column connected to each corner clamping piece; the utility model can automatically adjust the spacing, so as to be applicable to PCB boards of different batches and different sizes, without replacing the entire clamp, the operation is more convenient, and the application range is wider.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB board processing, and in particular relates to a clamp for PCB board processing. Background Art

[0002] In the process of PCB board processing, most of the processes such as cutting, spraying, and engraving are required. In order to prevent the PCB board from shifting during the processing, a clamp is generally used to fix the PCB board.

[0003] China's authorization announcement number CN210899846U is a patent for a fixture for PCB board processing. The patent sets a main body, sets a accommodating space in the middle of the main body, sets a positioning part around the accommodating space, sets a connecting part between the positioning part and the edge of the main body, and also sets a pin shaft, which is adapted to the positioning part and the connecting part to form a fixture for PCB board rework.

[0004] However, the above-mentioned prior art can only be applied to PCB boards of a specific size in actual process. When encountering PCB boards of different batches and different sizes, the entire fixture needs to be replaced, which is cumbersome to operate and has a narrow scope of application. Therefore, we designed a fixture for PCB board processing. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a PCB processing fixture, which solves the problem that the prior art can only be applied to PCB boards of a specific size in the actual process, and when encountering PCB boards of different batches and sizes, the entire fixture needs to be replaced, the operation is cumbersome, and the application range is narrow.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a clamp for processing a PCB board is provided, comprising a base, and a clamping groove provided on the base;

[0007] It also includes a clamping mechanism, which includes a ball screw rotatably arranged on both sides of the base, a clamping rod 1 and a clamping rod 2 arranged in the clamping groove and respectively sleeved on two ball screws on both sides, a worm wheel sleeved on the end of each ball screw, a worm rotatably arranged in the base and meshingly connected with the worm wheel, corner clamps arranged on the clamping rod 1 and the clamping rod 2, and a positioning column connected to each corner clamp.

[0008] A further improvement is that the four corner clamps are all made of rubber material, and rubber pressure plates are provided inside the four corner clamps. The rubber pressure plates are used for pressure buffering of the PCB board to prevent breakage caused by excessive force during processing.

[0009] A further improvement is that a support pad is provided on the bottom surface of each of the corner clamps, the bottom surface of each support pad is in contact with the inner wall surface of the clamping groove, and the support pad is used to support the PCB board.

[0010] A further improvement is that grooves for the sliding of the clamping rod 1 and the clamping rod 2 are provided on the symmetrical inner wall surfaces on both sides of the clamping groove, which are used for guiding the sliding of the clamping rod 1 and the clamping rod 2.

[0011] A further improvement is that the worm is driven by a servo motor externally arranged on the side of the base, each of the ball screws is provided with two sections of opposite thread teeth, and the clamping rod 1 and the clamping rod 2 are respectively threadedly sleeved on the two sections of opposite thread teeth of the ball screw.

[0012] A further improvement is that the bottom end of each positioning column is provided with an external thread, and the clamp rod 1 and clamp rod 2 are provided with a threaded groove. Each corner clamp is installed on clamp rod 1 and clamp rod 2 through a positioning column and is connected by a thread, which facilitates the disassembly and assembly and adjustment of the position of the corner clamp.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model utilizes a servo motor to provide power to drive the worm to rotate, so that two worm wheels and two ball screws rotate, and respectively drive the clamping rod 1 and the clamping rod 2 to move closer to or separate from each other, and automatically adjust to a suitable spacing; and by shifting the two corner clamps on the clamping rod 1 and the clamping rod 2, adjusting the positions of the two corner clamps, and then installing each corner clamp on the clamping rod 1 and the clamping rod 2 through a positioning column, the above design can be applied to PCB boards of different batches and sizes without replacing the entire clamp, which is more convenient to operate and has a wider range of applications;

[0015] (2) By placing the rubber pressure plate on the four corner clamps and then placing the PCB on the rubber pressure plate, the rubber pressure plate can be used to buffer the pressure on the PCB during processing, thereby effectively preventing the PCB from being broken due to excessive force during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional top view of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the four corner clamps, the positioning column and the rubber pressure plate of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a clamping rod of the utility model.

[0020] Markings in the figure:

[0021] 1. Support pad;

[0022] 2. base; 21. clamping groove; 22. groove;

[0023] 3. Clamping mechanism; 31. Clamping rod 1; 32. Clamping rod 2; 33. Corner clamp; 34. Positioning column; 35. Ball screw; 36. Worm wheel; 37. Worm; 38. Thread groove;

[0024] 4. Rubber pressure plate. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 As shown, a clamp for processing a PCB board includes a base 2 and a clamping groove 21 provided on the base 2. The clamping groove 21 is used to place the PCB so that a clamping rod 1 31 and a clamping rod 2 32 can clamp and fix the PCB.

[0027] like Figure 2 and Figure 3 As shown, it also includes a clamping mechanism 3, which includes a ball screw 35 rotatably arranged on both sides of the base 2, a clamping rod 1 31 and a clamping rod 2 32 arranged in the clamping groove 21 and respectively sleeved on two ball screws 35 on both sides, a worm wheel 36 sleeved at the end of each ball screw 35, a worm 37 rotatably arranged in the base 2 and meshingly connected with the worm wheel 36, a corner clamp 33 arranged on the clamping rod 1 31 and the clamping rod 2 32 and a positioning column 34 connected to each corner clamp 33, a support pad 1 is arranged on the bottom surface of each corner clamp 33, and the bottom surface of each support pad 1 contacts the inner wall surface of the clamping groove 21, the support pad 1 is used to support the PCB board, and the worm 37 is externally arranged on the side of the base 2 The servo motor on the surface is driven, and each ball screw 35 is provided with two sections of opposite thread teeth. The clamp rod 1 31 and the clamp rod 2 32 are respectively threaded on the two sections of opposite thread teeth of the ball screw 35. The servo motor provides power to drive the worm 37 to rotate, so that the two worm wheels 36 and the two ball screws 35 rotate, respectively driving the clamp rod 1 31 and the clamp rod 2 32 to move closer to or separate from each other, and automatically adjust to a suitable spacing; and by shifting the two corner clamps 33 on the clamp rod 1 31 and the clamp rod 2 32, adjusting the position of the two corner clamps 33, and then installing each corner clamp 33 on the clamp rod 1 31 and the clamp rod 2 32 through the positioning column 34, it can be suitable for PCB boards of different batches and different sizes;

[0028] like Figure 1 As shown, the bottom end of each positioning column 34 is provided with an external thread, and the clamp rod 1 31 and the clamp rod 2 32 are provided with a threaded groove 38. Each corner clamp 33 is installed on the clamp rod 1 31 and the clamp rod 2 32 through the positioning column 34, and a threaded connection is adopted to facilitate the disassembly and assembly and adjustment of the position of the corner clamp 33.

[0029] Combination Figure 2 and Figure 4 As shown, as a preferred embodiment, the four corner clamps 33 are all made of rubber material, and a rubber pressure plate 4 is provided inside the four corner clamps 33. The rubber pressure plate 4 is used for pressure buffering of the PCB board to prevent breakage due to excessive force during processing.

[0030] Combination Figure 1 As shown, as a preferred embodiment, grooves 22 for the sliding of clamping rod 1 31 and clamping rod 2 32 are provided on the symmetrical inner wall surfaces on both sides of the clamping groove 21, which are used for guiding the sliding of clamping rod 1 31 and clamping rod 2 32.

[0031] Combination Figures 1 to 4 As shown, it should be noted that the size of the application document is selected and installed according to the actual needs on site. During implementation, the corresponding rubber pressure plate 4 is selected according to the size of different PCB boards, and the four corners of the bottom are respectively inserted into the slots 331; in addition, the model of the servo motor is YCT160, and the speed and rotation time of the servo motor can be set before implementation;

[0032] The working principle of this PCB processing fixture is as follows:

[0033] When in use, the staff uses the servo motor to provide power to drive the worm 37 to rotate according to the size of the PCB board, so that the two worm wheels 36 and the two ball screws 35 rotate, respectively driving the clamping rod 1 31 and the clamping rod 2 32 to move closer to or separate from each other, and automatically adjust to a suitable spacing;

[0034] By shifting the two corner clamps 33 on the clamp rod 1 31 and the clamp rod 2 32, adjusting the positions of the two corner clamps 33, and then installing each corner clamp 33 on the clamp rod 1 31 and the clamp rod 2 32 through the positioning column 34, the above design can be applied to PCB boards of different batches and sizes without replacing the entire clamp, which is more convenient to operate and has a wider range of applications;

[0035] Then place the rubber pressure plate 4 on the four corner clamps 33, and then place the PCB on the rubber pressure plate 4. During the processing, the rubber pressure plate 4 can be used to buffer the pressure of the PCB, thereby effectively preventing it from being broken due to excessive force during processing.

[0036] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A clamp for processing a PCB board, comprising a base (2) and a clamping groove (21) provided on the base (2); It is characterized in that The invention also comprises a clamping mechanism (3), wherein the clamping mechanism (3) comprises a ball screw (35) rotatably arranged on both sides of the base (2), a clamping rod (31) and a clamping rod (32) arranged in a clamping groove (21) and respectively sleeved on two ball screws (35) on both sides, a worm wheel (36) sleeved on the end of each ball screw (35), a worm (37) rotatably arranged in the base (2) and meshingly connected with the worm wheel (36), a corner clamp (33) arranged on the clamping rod (31) and the clamping rod (32), and a positioning column (34) connected to each corner clamp (33).

2. A PCB processing fixture according to claim 1, characterized in that: The four corner clamps (33) are all made of rubber material, and a rubber pressure-bearing plate (4) is arranged inside the four corner clamps (33).

3. A PCB processing fixture according to claim 1, characterized in that: A supporting pad (1) is arranged on the bottom surface of each corner clamp (33), and the bottom surface of each supporting pad (1) contacts the inner wall surface of the clamping groove (21).

4. A PCB processing fixture according to claim 1, characterized in that: The symmetrical inner wall surfaces on both sides of the clamping groove (21) are provided with grooves (22) for the first clamping rod (31) and the second clamping rod (32) to slide.

5. A PCB processing fixture according to claim 1, characterized in that: The worm (37) is driven by a servo motor externally arranged on the side of the base (2), and each of the ball screws (35) is provided with two sections of opposite thread teeth. The clamping rod 1 (31) and the clamping rod 2 (32) are respectively threadedly sleeved on the two sections of opposite thread teeth of the ball screw (35).

6. A PCB processing fixture according to claim 1, characterized in that: The bottom end of each positioning column (34) is provided with an external thread, and the clamping rod 1 (31) and the clamping rod 2 (32) are provided with a thread groove (38), and each corner clamp (33) is installed on the clamping rod 1 (31) and the clamping rod 2 (32) through the positioning column (34).

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