Rapid fixing device for circuit board processing

Abstract

The utility model relates to a fixing device, in particular to a rapid fixing device for circuit board processing. The rapid fixing device for circuit board processing comprises a sliding block, a guide rail, a connecting rod, a groove-shaped block, a base plate and the like. The sliding blocks are rotationally connected to the left and right ends of the connecting rod, the guide rails are slidably arranged on the outer sides of the lower portions of the sliding blocks, the groove-shaped block is slidably connected to the upper portion of the connecting rod, and the base plate is fixedly welded to the top of the groove-shaped block. The negative pressure pumping device is externally connected to the air pipe, negative pressure is formed on the base plate, when the circuit board is fixed, the circuit board only needs to be flatly placed on the base plate, the fixing work can be completed, other operations are not needed, and the circuit board fixing device is convenient and fast to use.

Description

Technical Field

[0001] The utility model relates to a fixing device, in particular to a quick fixing device for processing a circuit board. Background Art

[0002] Circuit board processing circuit board fixture is a fixture used to clamp the circuit board for processing. During the circuit board processing, operations such as cutting or drilling are required, so the circuit board needs to be fixed so that the operator can complete the corresponding processing operations safely and accurately.

[0003] The existing circuit board fixing device clamps the edge of the circuit board for clamping and fixing. This fixing method is prone to bumping when installing and placing the circuit board, and is easy to damage the circuit board during clamping and fixing, resulting in increased processing costs. In addition, during the fixing and loosening process, the clamping strength of the fixing device needs to be manually adjusted step by step, which is relatively cumbersome and inconvenient to use, reducing processing efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of the existing circuit board fixing device, a clamp is used to clamp the edge of the circuit board for clamping and fixing. This fixing method is prone to bumping when installing and placing the circuit board, and is easy to damage the circuit board during clamping and fixing, resulting in an increase in processing costs. In addition, during the fixing and loosening process, it is necessary to manually adjust the clamping strength of the fixing device step by step, which is cumbersome and inconvenient to use, and reduces the processing efficiency. The purpose of the utility model is to provide a quick fixing device for circuit board processing that does not require mechanical clamping of the circuit board for installation and fixing. The fixing work can be completed by simply placing the circuit board flat on a pad without performing other operations. It is relatively fast and convenient.

[0005] The technical solution is: a quick fixing device for circuit board processing, including a slider, a guide rail, a connecting rod, a groove block, a pad, an air pipe and a joint, the left and right ends of the connecting rod are rotatably connected to the slider, the lower outer side of the slider is slidably provided with a guide rail, the upper part of the connecting rod is slidably connected to the groove block, the top of the groove block is fixedly welded with a pad, the lower part of the pad is symmetrically provided with air pipes, the air pipes are connected and communicated with joints, the left and right sides of the pad are symmetrically opened with air inlets, and the upper parts of the left and right sides of the two air pipes are respectively inserted into the two air inlets on the same side.

[0006] As an improvement of the above scheme, it also includes gears, racks, connecting plates, splints, cylinders and fixed rods. A gear is rotatably installed in the lower part of the groove block. Strip grooves are opened on the right front side and the lower left side of the lower part of the groove block. Racks are slidably provided in the strip grooves. The two racks are meshed with the gears. Under the rotation of the gears, the two racks move in opposite directions. Connecting plates are fixed on the racks. Splints are fixedly connected to the upper parts of the connecting plates. The bottoms of the splints are in sliding contact with the pads. The two splints are symmetrically positioned on the left and right sides of the pads, and the upper parts of the splints are higher than the top of the pads. A cylinder is installed on the lower front part of the pad, and a fixed rod is fixedly connected to the movable rod of the cylinder, and the right end of the fixed rod is fixedly connected to the rack on the front side.

[0007] As an improvement of the above solution, a side plate is also included, and the front part of the pad is fixedly connected to the side plate.

[0008] As an improvement of the above solution, a motor is also included. The motor is installed on the upper right side of the right sliding block, and the motor output shaft is fixedly connected to the right end of the connecting rod.

[0009] As an improvement to the above solution, air inlet grooves are provided on the outer sides of the air inlet.

[0010] The utility model has the following advantages: the utility model forms negative pressure on the pad by externally connecting a negative pressure pumping device to the air pipe. When fixing the circuit board, the circuit board only needs to be placed flat on the pad to complete the fixing work without other operations, which is relatively fast and convenient.

[0011] The utility model moves the front and rear positions of the pads by moving the sliders on the guide rails, and can also change the left and right positions and the tilt angles of the pads during processing by moving the pads on the connecting rods and rotating the pads up and down to meet more processing requirements.

[0012] The utility model can quickly position the circuit board on the pad through the side plate and the clamping plate, so as to avoid the circuit board being in a biased position on the pad when the circuit board is subsequently fixed, thereby affecting the subsequent processing procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model.

[0014] Figure 2 This is a three-dimensional structural schematic diagram of the utility model without the clamping plate mechanism.

[0015] Figure 3 This is a schematic diagram of the second three-dimensional structure of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the components such as the groove block, the air pipe and the joint of the utility model.

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the clamping mechanism of the utility model.

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the connecting plate, clamping plate, cylinder and other components of the utility model.

[0019] The meanings of the reference numerals in the figure are: 1: slider, 2: guide rail, 3: connecting rod, 31: groove block, 4: pad, 5: air pipe, 51: joint, 52: air inlet, 6: gear, 7: rack, 71: connecting plate, 8: splint, 9: cylinder, 91: fixing rod, 10: side plate, 11: motor. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0021] Embodiment 1: A quick fixing device for processing a circuit board, such as Figure 1-6 As shown, it includes a slider 1, a guide rail 2, a connecting rod 3, a groove block 31, a pad 4, an air pipe 5 and a joint 51. The left and right ends of the connecting rod 3 are rotatably connected to the slider 1. The outer side of the lower part of the slider 1 is slidably provided with a guide rail 2. The guide rail 2 is provided with a plurality of through holes for fixed installation. The length of the guide rail 2 can be set according to the needs of the required processing station. When the slider 1 moves on the guide rail 2, it is relatively smooth and has less friction. The upper part of the connecting rod 3 is slidably connected to the groove block 31. The top of the groove block 31 is fixedly welded with a pad 4. The pad 4 is provided with a raised plane for flattening the circuit board. The pad 4 can move forward and backward with the slider 1 during processing. The groove block 31 is moved to adjust the left and right position, and the connecting rod 3 is rotated to adjust the inclination angle of the pad 4. The lower part of the pad 4 is symmetrically provided with an air pipe 5, which is a U-shaped pipe, and the upper part is inserted into the pad 4. The air pipe 5 is connected and communicated with a joint 51. The left and right sides of the raised plane of the pad 4 are symmetrically provided with air inlets 52. The upper parts of the left and right sides of the two air pipes 5 are respectively inserted into the two air inlets 52 on the same side. The external negative pressure extraction equipment can be connected to the joint 51, and air is inhaled through the air pipe 5 to form a negative pressure area near the air inlet 52. When the circuit board is placed above the air inlet 52, it will be pressed on the pad 4 under the action of atmospheric pressure to be fixed.

[0022] When the circuit board needs to be fixed by the device, the single-chip circuit board to be fixed is placed flat on the pad 4, and the two air inlet joints 51 are connected through an external negative pressure device. When the joint 51 is connected to negative pressure, the outside air will be sucked into the air pipe 5 from the air inlet 52. At this time, under the action of the external negative pressure device, a negative pressure area is formed at the air inlet 52 on the top of the pad 4. When the circuit board with a relatively flat surface is placed on the top of the pad 4, the air inlet 52 on the pad 4 continues to pump negative pressure. When an object is placed on the air inlet When the circuit board is at the inlet 52, it will be firmly pressed on the pad 4 under the action of atmospheric pressure, and a negative pressure will be formed on the pad 4 through the external negative pressure device on the air pipe 5. When fixing the circuit board, you only need to place the circuit board flat on the pad 4 to complete the fixing work, without any other operations. It is relatively fast and convenient. People can move the front and back position of the pad 4 by moving the slider 1 on the guide rail 2, and can also change the left and right position and tilt angle of the pad 4 during processing by moving and rotating the pad 4 on the connecting rod 3 to meet more processing requirements. When the circuit board on the pad 4 is processed, the negative pressure device on the joint 51 is disconnected, the negative pressure state at the air inlet 52 is released, the circuit board is no longer sucked, and the circuit board is taken away to complete the processing.

[0023] Embodiment 2: Based on embodiment 1, Figure 2-6 As shown, it also includes a gear 6, a rack 7, a connecting plate 71, a clamping plate 8, a cylinder 9 and a fixing rod 91. The gear 6 is rotatably installed in the lower part of the groove block 31. The right front side and the lower left side of the lower part of the groove block 31 are both provided with strip grooves. Racks 7 are slidably provided in the strip grooves. The two racks 7 are meshed with the gear 6. Under the rotation of the gear 6, the two racks 7 move in opposite directions. Connecting plates 71 are fixed on the rack 7. Clamping plates 8 are fixedly connected to the upper part of the connecting plates 71. Under the action of the gear 6 and the rack 7, the clamping plates 8 move synchronously in opposite directions, and the moving distance is consistent. When there is a circuit board on the pad 4, the two clamping plates 8 move inwardly and oppositely, which will push the circuit board to a relatively central position of the pad 4, thereby playing a positioning role. The bottoms of the splints 8 are in sliding contact with the pad 4. The two splints 8 are symmetrically positioned on the left and right sides of the pad 4, and the upper parts of the splints 8 are higher than the top of the pad 4. A cylinder 9 is installed on the lower front side of the pad 4. A fixed rod 91 is fixedly connected to the movable rod of the cylinder 9. The right end of the fixed rod 91 is fixedly connected to the front rack 7. When the movable rod of the cylinder 9 moves, the front rack 7 will be driven to move. Under the meshing of the gear 6, the rear rack 7 will synchronously move the same distance in the opposite direction.

[0024] like Figure 1-3 As shown, it also includes a side plate 10, and the front part of the pad 4 is fixedly connected with the side plate 10, which is used to assist in placing the circuit board flat when placing the board, so that when the circuit board is on the pad 4, there is no front-to-back deflection on the left and right sides.

[0025] like Figure 1-3 As shown, a motor 11 is also included. The motor 11 is installed on the upper right side of the right slider 1. The output shaft of the motor 11 is fixedly connected to the right end of the connecting rod 3. The motor 11 is used to accurately rotate the inclination angle of the pad 4 on the connecting rod, and the self-locking function of the motor 11 is used to maintain the pad 4 after the rotation angle to prevent it from rotating under external force.

[0026] Initially, the movable rod of the cylinder 9 is in an extended state, the two racks 7 are in meshing state with the gear 6, and the two clamps 8 are in a state of being opened opposite to each other on the left and right sides of the pad 4. When placing a circuit board on the pad 4, the pad 4 is laid flat, and then the front side of the circuit board after being laid flat is pressed against the rear side of the side plate 10, and then it is laid flat on the top of the pad 4. Subsequently, the movable rod of the cylinder 9 is controlled to retract, and the movable rod of the cylinder 9 drives the front rack 7 to translate to the right. When the rack 7 moves, it will drive the gear 6 to rotate counterclockwise. The gear 6 rotates and synchronously drives the rear rack 7 to translate to the left. At this time, the connecting plate 71 connected to the rack 7 will drive the clamps 8 to move inwardly opposite to each other under the drive of the displacement of the rack 7, and the left and right sides of the circuit board placed on the pad 4 will be engaged with the left and right clamps moving inward. The board 8 contacts and is clamped by the clamping plate 8. Since the two left-right symmetrical clamping plates 8 on the pad 4 move at the same distance when moving, when the clamping plates 8 on both sides clamp the circuit board, the circuit board will be in a relatively centered position. The circuit board on the pad 4 is positioned through the side plate 10 and the clamping plate 8 to avoid the circuit board being in a biased position on the pad 4 when fixed, which affects the subsequent processing steps. When the positioning is completed, the control cylinder 9 extends the movable rod to disengage the clamping plate 8 from the circuit board and reset it, and then fix the circuit board. At the same time, when the pad 4 needs to be rotated for processing angle, the motor 11 can be used to drive the connecting rod 3 to rotate, and the self-locking function of the motor 11 can be used to maintain the angle of the rotated pad 4 to avoid rotation and displacement of the pad 4 during processing.

[0027] In a preferred embodiment, air inlet grooves are provided on the outside of the air inlet 52 to prevent the air inlet 52 from being completely closed when a circuit board with a relatively smooth bottom surface is placed on the pad 4, preventing air flow from flowing and affecting the fixing effect.

[0028] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A quick fixing device for processing a circuit board, comprising a slider (1), a guide rail (2), a connecting rod (3) and a slot block (31), wherein both left and right ends of the connecting rod (3) are rotatably connected to the slider (1), the lower outer side of the slider (1) is slidably provided with a guide rail (2), and the upper part of the connecting rod (3) is slidably connected to the slot block (31); Its characteristics are: The utility model also comprises a backing plate (4), an air pipe (5) and a joint (51); the backing plate (4) is fixedly welded to the top of the groove block (31); the air pipes (5) are symmetrically arranged at the lower part of the backing plate (4); the air pipes (5) are connected and communicated with the joint (51); the backing plate (4) is symmetrically provided with air inlets (52) at the left and right sides; the upper parts of the left and right sides of the two air pipes (5) are respectively penetrated into the two air inlets (52) at the same side.

2. A quick fixing device for circuit board processing as claimed in claim 1, characterized in that: The invention also comprises a gear (6), a rack (7), a connecting plate (71), a clamping plate (8), a cylinder (9) and a fixing rod (91). The gear (6) is rotatably mounted in the lower part of the groove block (31). The right front side and the lower left side of the lower part of the groove block (31) are both provided with strip grooves. Racks (7) are slidably arranged in the strip grooves. The two racks (7) are meshed with the gear (6). When the gear (6) rotates, the two racks (7) move in opposite directions. The racks (7) are both fixed with a plurality of screws. A connecting plate (71) is provided, and a clamping plate (8) is fixedly connected to the upper part of the connecting plate (71), and the bottom of the clamping plate (8) is in sliding contact with the backing plate (4). The two clamping plates (8) are symmetrically located on the left and right sides of the backing plate (4), and the upper part of the clamping plate (8) is higher than the top position of the backing plate (4). A cylinder (9) is installed on the lower side of the front part of the backing plate (4), and a fixed rod (91) is fixedly connected to the movable rod of the cylinder (9), and the right end of the fixed rod (91) is fixedly connected to the rack (7) on the front side.

3. A quick fixing device for circuit board processing as claimed in claim 2, characterized in that: It also includes a side plate (10), and the front part of the pad (4) is fixedly connected to the side plate (10).

4. A quick fixing device for circuit board processing as claimed in claim 3, characterized in that: It also includes a motor (11), which is installed on the upper right side of the right sliding block (1), and the output shaft of the motor (11) is fixedly connected to the right end of the connecting rod (3).

5. A quick fixing device for circuit board processing as claimed in claim 4, characterized in that: The invention also includes air inlet grooves formed on the outer sides of the air inlet (52).

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