A PCB board processing fixture

Abstract

The utility model relates to the field of PCB board processing, in particular to a PCB board processing fixture, comprising a base, a control unit and a processing table are fixedly installed on the top of the base, and a pair of movable blocks are slidably connected between the top of the base and the processing table through a first guide groove, and a fixture is arranged on the top of the movable block through a cross plate; wherein, a driving member for driving the pair of movable blocks to move is arranged on the top of the base, a clamping member for fixing the clamp is arranged in the cross plate, and a limit assembly is arranged on the top of the processing table, and the limit assembly is used to control the moving distance of the clamp and drive the pair of movable blocks to move toward or away from each other, so that the clamping blocks on both sides can clamp and fix the PCB board at the same time, and can also adapt to PCB boards of different lengths, and can prevent the situation that the pressing force on the PCB board is too large or too small by the wedge rod contacting and triggering the button.

Description

Technical Field

[0001] The utility model relates to the field of PCB board processing, in particular to a PCB board processing fixture. Background Art

[0002] A processing fixture is a tool used to fix PCB boards for processing and production. It can ensure that the PCB boards remain stable during processing for precise processing and drilling. The processing fixture usually consists of a fixture base, a fixture plate and a fixture clamping device, and can be customized according to the size and shape of the PCB board.

[0003] In order to facilitate the processing of the PCB board, it is necessary to fix the board with the help of a PCB board processing fixture. For example, the prior art Chinese patent announcement number "CN217135785U" discloses a PCB board processing fixture, including a base plate, the base plate is slidably connected to two slide seats through a guide rail, the slide seat is connected to a support bar through a support arm, the support bar is formed with a first slide groove, a second slide groove and a first strip hole, a plurality of sliders are slidably connected in the first slide groove, a moving bar is slidably connected on the slider, a clamping block is hinged at the end of the moving bar, a second strip hole is formed on the moving bar, a sliding hole is formed on the slider, a sliding rod is slidably connected in the sliding hole, a stop block and a threaded portion are respectively formed at both ends of the sliding rod, the stop block is slidably connected in the second slide groove, a nut is threadedly connected on the threaded portion, a stop sleeve is formed on the nut, the stop sleeve is abutted on the moving bar, and a locking mechanism for locking the slide seat is provided on the base plate. The utility model has a novel structure, can be applied to PCB boards of various shapes and is easy to adjust.

[0004] Some PCB processing fixtures use hand-cranked screws to drive several pairs of fixtures to move and clamp the PCB. Such manual operation slows down the processing efficiency. In addition, it is impossible to accurately grasp the force applied by the fixture to the PCB when clamping the PCB. If the force is too small, the fixation may be unstable during processing. If the force is too large, the PCB or the fixture may be damaged. Utility Model Content

[0005] The utility model aims to solve the above-mentioned shortcomings of the prior art, that is, low processing efficiency and inability to accurately control the force applied by the fixture to the PCB board, and proposes a PCB board processing fixture.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A PCB processing fixture is designed, comprising a base, a control unit and a processing table are fixedly installed on the top of the base, and a pair of movable blocks are slidably connected between the top of the base and the processing table through a first guide groove, and a fixture is provided on the top of the movable block through a horizontal plate;

[0008] Among them, a driving member for driving a pair of movable blocks to move is provided on the top of the base, a clamping member for fixing the clamp is provided in the horizontal plate, and a limit assembly is provided on the top of the processing table, and the limit assembly is used to control the moving distance of the clamp.

[0009] Furthermore, the driving member includes a motor fixedly mounted on the top of the base, the motor is electrically connected to the control unit, and its shaft end is located above the first guide groove and is fixedly connected to a double-headed screw, and a pair of movable blocks are respectively threadedly connected to both ends of the double-headed screw.

[0010] Furthermore, the clamping part includes a straight groove on the top of the horizontal plate, and the clamp includes a fixed clamping block and a movable clamping block. The fixed clamping block is fixedly installed at one end of the horizontal plate, and the movable clamping block is slidably connected to the straight groove through a round rod.

[0011] Furthermore, a recessed portion is provided at the bottom of the horizontal plate next to the I-shaped groove, a clamping rod is slidably connected inside the round rod, and a spring is fixedly connected between the inner side surface of the clamping rod and the side surface of the clamping rod, and a protrusion is provided at the other end of the clamping rod, which can be clamped into the recessed portion to fix the movable clamping block.

[0012] Furthermore, the limiting assembly includes a slider, and a slide groove is provided on the top of the processing table on one side of the fixed clamp block, and the slider is slidably connected in the slide groove. A button is provided on the top of the slider through a support plate, and the button is electrically connected to the control unit. A wedge rod is provided at the bottom of the fixed clamp block, and the wedge rod can resist the button.

[0013] Furthermore, a fixed rod, a clamping rod and a straight groove are provided in sequence beside the slide groove, a clamping block is slidably connected in the straight groove, a tension spring is fixedly connected between the clamping rod and the bottom of the clamping block, and one end of the clamping block is slidably connected to the fixed rod through a second guide groove.

[0014] Furthermore, a wedge block is rotatably connected to the top of the fixing rod, a protrusion is provided on the top of the block, the wedge block can abut against the protrusion, and a plurality of slots are opened on the side of the slider, and one end of the block can be snapped into the slot.

[0015] The utility model proposes a PCB board processing fixture, which has the beneficial effect that: the utility model can drive a pair of movable blocks to move toward or away from each other through the action of a motor and a double-headed screw rod at the same time, so that the clamping blocks on both sides can clamp and fix the PCB board at the same time. In addition, the position of the movable clamping block can be changed through a clamping piece to adapt to PCB boards of different lengths. A limit assembly is also provided, which reminds the control unit that the pressing force of the clamping block is sufficient and the driving of the motor needs to be stopped through the action of a wedge-shaped rod abutting and triggering button, thereby preventing the PCB board from being pressed too much or too little. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of area A;

[0018] Figure 3 This is a structural schematic diagram of the processing table of the utility model;

[0019] Figure 4 It is a cross-sectional view of the clamping member of the utility model;

[0020] Figure 5 It is an enlarged schematic diagram of the limit assembly of the utility model.

[0021] In the figure: 1. base; 11. control unit; 2. processing table; 3. first guide groove; 4. movable block; 5. cross plate; 6. fixture; 61. fixed clamping block; 62. movable clamping block; 7. driving member; 71. motor; 72. double-headed screw; 8. clamping member; 81. slot; 82. round rod; 83. recessed portion; 84. clamping rod; 85. spring; 86. raised portion; 9. limit assembly; 91. slider; 911. clamping groove; 92. slide groove; 93. support plate; 94. button; 95. wedge rod; 96. fixed rod; 961. clamping rod; 962. straight groove; 963. wedge block; 97. clamping block; 971. second guide groove; 972. protrusion; 98. tension spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5A PCB board processing fixture comprises a base 1, a control unit 11 and a processing table 2 are fixedly installed on the top of the base 1, and a pair of movable blocks 4 are slidably connected between the top of the base 1 and the processing table 2 through a first guide groove 3, and a fixture 6 is provided on the top of the movable block 4 through a cross plate 5. It should be noted that avoidance grooves are opened on both sides of the processing table 2, and the avoidance grooves are used to provide a movable space for the pair of movable blocks 4 to prevent them from getting stuck when moving.

[0024] Among them, a driving member 7 for driving a pair of movable blocks 4 to move is provided on the top of the base 1, a clamping member 8 for fixing the clamp 6 is provided in the cross plate 5, and a limit assembly 9 is provided on the top of the processing table 2, and the limit assembly 9 is used to control the moving distance of the clamp 6.

[0025] Furthermore, the driving member 7 includes a motor 71 fixedly mounted on the top of the base 1, the motor 71 is electrically connected to the control unit 11, and its shaft end is located above the first guide groove 3 and is fixedly connected to a double-headed screw rod 72, a pair of the movable blocks 4 are respectively threadedly connected to the two ends of the double-headed screw rod 72, and the motor 71 drives the double-headed screw rod 72 to drive a pair of the movable blocks 4 to move toward or away from each other, so that the clamps 6 on both sides can be driven to clamp the PCB board at the same time.

[0026] Furthermore, the clamping member 8 includes a straight groove 81 opened on the top of the horizontal plate 5, and the clamp 6 includes a fixed clamping block 61 and a movable clamping block 62. The fixed clamping block 61 is fixedly installed at one end of the horizontal plate 5, and the movable clamping block 62 is slidably connected to the straight groove 81 through a round rod 82. The straight groove 81 provides a movable space for the movable clamping block 62. By changing the position of the movable clamping block 62, PCB boards of different lengths can be adapted.

[0027] It is worth mentioning that, because the fixed clamp block 61 cannot move, its direction is the direction in which the PCB board is pushed onto the processing table 2. In this way, after determining the length of one end of the PCB board, the position of the movable clamp block 62 is determined according to the length of the other end.

[0028] In more detail, a recessed portion 83 is provided at the bottom of the cross plate 5 next to the I-shaped groove 81, a clamping rod 84 is slidably connected inside the round rod 82, and a spring 85 is fixedly connected between the inner side surface thereof and the side surface of the clamping rod 84, and a protrusion 86 is provided at the other end of the clamping rod 84, and the protrusion 86 can be clamped into the recessed portion 83 to fix the movable clamping block 62, and the clamping rod 84 supports the protrusion 86 upward under the action of the spring 85 so that it clamps into the recessed portion 83, thereby fixing the movable clamping block 62.

[0029] In general, the limiting assembly 9 includes a slider 91, and a slide groove 92 is provided on the top of the processing table 2 on one side of the fixed clamp block 61. The slider 91 is slidably connected in the slide groove 92. A button 94 is provided on the top of the slider 91 through a support plate 93. The button 94 is electrically connected to the control unit 11. A wedge rod 95 is provided at the bottom of the fixed clamp block 61, and the wedge rod 95 can resist the button 94.

[0030] It is worth mentioning that, considering that it is inconvenient to process the PCB board if the pressure of the clamp 6 is too large or too small, the wedge rod 95 is used to contact and trigger the button 94 to control the control unit 11 to stop the driving of the motor 71. In addition, the length of the clamp 6 is longer than the length of the wedge rod 95, so that the wedge rod 95 can contact the button 94 while ensuring that the clamp 6 is pressed tightly against the PCB board.

[0031] In addition, a fixed rod 96, a clamping rod 961 and a straight groove 962 are provided next to the slide groove 92 in sequence, a clamping block 97 is slidably connected in the straight groove 962, a tension spring 98 is fixedly connected between the clamping rod 961 and the bottom of the clamping block 97, and one end of the clamping block 97 is slidably connected to the fixed rod 96 through a second guide groove 971.

[0032] Finally, the top of the fixing rod 96 is rotatably connected to a wedge block 963, and the top of the clamping block 97 is provided with a protrusion 972, and the wedge block 963 can abut against the protrusion 972, and a plurality of clamping grooves 911 are opened on the side of the slider 91, and one end of the clamping block 97 can be clamped into the clamping groove 911.

[0033] The specific operation is that after the PCB board is clamped by the clamp 6, the slider 91 is pushed to make it close to the side of the PCB board, and then the wedge block 963 is rotated so that it does not conflict with the protrusion 972. Then, under the action of the tension spring 98, the card block 97 is inserted into the card slot 911 to fix the slider 91. In this way, after the clamp 6 is pressed against the PCB board, the appropriate pressing force is determined by contacting the button 94.

[0034] Working method: When working, place the PCB board on the processing table 2, then push the slider 91 to the side of the PCB board and close to its side, then rotate the wedge block 963 so that it does not conflict with the protrusion 972, and then under the action of the tension spring 98, the card block 97 is inserted into the card slot 911 to fix the slider 91.

[0035] At this time, the clamping rod 84 is pulled to separate the protrusion 86 from the recessed portion 83 , and the clamping rod 84 is released after the round rod 82 is moved to a suitable position. Under the action of the spring 85 , the protrusion 86 is clamped to the fixed movable clamping block 62 in the recessed portion 83 .

[0036] Finally, the control unit 11 is used to drive the motor 71 to drive the double-headed screw 72 to rotate, so that a pair of movable blocks 4 can be driven to move toward each other, and the clamp 6 slowly approaches the PCB board until the wedge rod 95 contacts and triggers the button 94. The control unit 11 receives an electrical signal to control the motor 71 to stop rotating. At this time, the fixed clamp block 61 and the movable clamp block 62 clamp and tighten the PCB board.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PCB processing fixture, comprising a base (1), characterized in that: A control unit (11) and a processing table (2) are fixedly mounted on the top of the base (1), and a pair of movable blocks (4) are slidably connected between the top of the base and the processing table (2) via a first guide groove (3), and a clamp (6) is provided on the top of the movable block (4) via a transverse plate (5); A driving member (7) for driving a pair of movable blocks (4) to move is provided on the top of the base (1), a clamping member (8) for fixing the clamp (6) is provided inside the transverse plate (5), and a limit assembly (9) is provided on the top of the processing table (2), and the limit assembly (9) is used to control the moving distance of the clamp (6).

2. A PCB processing fixture according to claim 1, characterized in that: The driving member (7) comprises a motor (71) fixedly mounted on the top of the base (1), the motor (71) being electrically connected to the control unit (11), and having an axial end located above the first guide groove (3) and fixedly connected to a double-headed screw (72), and a pair of movable blocks (4) being respectively threadedly connected to the two ends of the double-headed screw (72).

3. A PCB processing fixture according to claim 1, characterized in that: The clamping member (8) comprises a straight groove (81) formed on the top of the transverse plate (5); the clamp (6) comprises a fixed clamp block (61) and a movable clamp block (62); the fixed clamp block (61) is fixedly mounted on one end of the transverse plate (5); and the movable clamp block (62) is slidably connected to the straight groove (81) via a round rod (82).

4. A PCB processing fixture according to claim 3, characterized in that: The bottom of the transverse plate (5) is provided with a recessed portion (83) next to the slot (81); a clamping rod (84) is slidably connected inside the round rod (82), and a spring (85) is fixedly connected between the inner side surface of the clamping rod and the side surface of the clamping rod (84); a protrusion (86) is provided at the other end of the clamping rod (84), and the protrusion (86) can be clamped into the recessed portion (83) to fix the movable clamping block (62).

5. The PCB processing fixture according to claim 3, characterized in that: The limiting assembly (9) comprises a slider (91), a slide groove (92) is provided at the top of the processing table (2) and located on one side of the fixed clamp block (61), the slider (91) is slidably connected in the slide groove (92), a button (94) is provided at the top of the slider (91) through a support plate (93), the button (94) is electrically connected to the control unit (11), and a wedge rod (95) is provided at the bottom of the fixed clamp block (61), and the wedge rod (95) can resist the button (94).

6. A PCB processing fixture according to claim 5, characterized in that: A fixing rod (96), a clamping rod (961) and a straight groove (962) are arranged in sequence beside the slide groove (92); a clamping block (97) is slidably connected in the straight groove (962); a tension spring (98) is fixedly connected between the clamping rod (961) and the bottom of the clamping block (97); one end of the clamping block (97) is slidably connected to the fixing rod (96) via a second guide groove (971).

7. A PCB processing fixture according to claim 6, characterized in that: The top of the fixing rod (96) is rotatably connected to a wedge block (963), the top of the clamping block (97) is provided with a protrusion (972), the wedge block (963) can abut against the protrusion (972), and the side of the sliding block (91) is provided with a plurality of clamping grooves (911), and one end of the clamping block (97) can be clamped into the clamping groove (911).

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