PCB edge grinding device

Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) edge grinding equipment, and discloses a PCB edge grinding device which comprises a workbench, a plurality of PCBs are arranged on the top surface of the workbench, a bracket is fixed on the top surface of the workbench, a grinding roller is arranged on the bottom surface of the bracket, and a positioning component for positioning and mounting the PCBs is arranged on the top surface of the workbench. The PCB can be clamped and positioned from the four sides through the four clamping plates, then the positioning seat is driven to rise, the uppermost PCB is moved to the position with the same height as the grinding roller to be ground, the grinding roller moves along the four sides of the PCB and grinds the PCB, the four clamping plates avoid the movement of the grinding roller in the process, and after one PCB is ground, the grinding roller is driven to move along the grinding roller to be ground. When the PCB edge grinding device is used, the positioning seat rises to enable the lower layer of PCB to move to the position of the grinding roller to be continuously ground, so that it is guaranteed that the grinding roller continuously grinds the PCB, the PCB does not need to be adjusted and repositioned in the midway, the PCB does not need to be fed one by one, and the edge grinding efficiency of the PCB is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of PCB board edge grinding equipment, and in particular to a PCB board edge grinding device. Background Technology

[0002] A PCB, also known as a printed circuit board, is a provider of electrical connections for electronic components. The term "PCB" is often used to refer to printed circuit boards, rather than simply "PCB board." Its development has a history of over 100 years. Its design primarily involves layout design. The main advantages of using PCBs are significantly reduced wiring and assembly errors, improved automation levels, and increased production efficiency. After the PCB is cut open, it requires an edge grinding device to grind the edges.

[0003] The existing novel PCB edge grinding device (publication number: CN216567591U) has at least the following drawbacks: the device uses two grinding rollers and two clamping plates to clamp the four sides of the PCB board respectively, and then the grinding rollers grind the PCB board. However, after each PCB board is ground, a new PCB board needs to be manually replaced, repositioned and ground again, which cannot achieve continuous grinding of the PCB board and results in low edge grinding efficiency. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a PCB board edge grinding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A PCB board edge grinding device includes a worktable, on the top surface of which a plurality of PCB boards are arranged. A bracket is fixed to the top surface of the worktable, and a grinding roller is arranged on the bottom surface of the bracket. A positioning component for positioning and mounting the PCB boards is arranged on the top surface of the worktable. The positioning component includes a positioning seat arranged above the worktable. A drive rod is arranged on all four sides of the outer wall of the positioning seat. A clamping plate is fixed to the end of the drive rod away from the positioning seat. An isolation frame is placed between two adjacent PCB boards.

[0007] As a further embodiment of this utility model, an electric push rod is fixed at the center of the top surface of the workbench. The top end of the telescopic rod of the electric push rod is fixed to the bottom surface of the positioning seat. Hollow shaft motors are fixed inside the positioning seat near the top and bottom surfaces. A bidirectional lead screw is fixed in the shaft hole of the hollow shaft motor. The two ends of the bidirectional lead screw extend to the outside of the positioning seat. The two front and rear corresponding drive rods and the two left and right corresponding drive rods are respectively threaded to the two ends of the two bidirectional lead screws.

[0008] As a further embodiment of this utility model, a gantry slide is fixed on the top surface of the bracket, a geared motor is installed on the drive seat of the gantry slide, and the grinding roller is fixed to the output shaft of the geared motor.

[0009] As a further embodiment of this utility model, heat dissipation holes are provided on all four sides of the outer wall of the positioning seat.

[0010] As a further embodiment of this utility model, inclined baffles are fixed on the four sides of the outer wall of the positioning seat corresponding to the heat dissipation holes, and protective cylinders are also fixed on the four sides of the outer wall of the positioning seat. The drive rod and the interior of the protective cylinder are slidably arranged. The outer wall of the drive rod is provided with a limiting protrusion, and the inner wall of the protective cylinder is provided with a limiting groove that is adapted to slide with the limiting protrusion.

[0011] As a further embodiment of this utility model, the top surface of the workbench is fixed with two support cylinders, and a support plate is slidably arranged inside the support cylinders. The support plate is fixed to the bottom surface of the positioning seat.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By placing the PCB board to be edge-ground on the top surface of the positioning seat, and using an isolation frame to separate each PCB board vertically and leave a gap, clamps are set on the four sides of the positioning seat. The four clamps can clamp and position the PCB board from four sides. Then, by driving the positioning seat to rise, the topmost PCB board moves to the same height as the grinding roller for grinding. The grinding roller moves along the four sides of the PCB board and grinds. During this process, the four clamps give way to the movement of the grinding roller. At least two clamps are kept stable in holding the PCB board. After grinding one PCB board, the positioning seat rises and the lower PCB board moves to the grinding roller to continue grinding. This ensures continuous grinding of the PCB board by the grinding roller. There is no need to adjust the PCB board and reposition it in the middle, nor is it necessary to load the PCB board one by one, which increases the edge grinding efficiency of the PCB board. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a PCB board edge grinding device proposed in this utility model;

[0015] Figure 2 This is a three-dimensional disassembled structural diagram of a PCB board edge grinding device proposed in this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the bracket of the PCB board edge grinding device proposed in this utility model;

[0017] Figure 4 This is a three-dimensional cross-sectional view of the positioning seat of a PCB board edge grinding device proposed in this utility model.

[0018] In the diagram: 1. Workbench; 101. Support; 102. Grinding roller; 2. Positioning seat; 201. Drive rod; 202. Clamping plate; 203. Isolation frame; 204. Electric push rod; 205. Hollow shaft motor; 206. Two-way lead screw; 3. Gantry slide; 301. Gear motor; 4. Heat dissipation hole; 5. Inclined baffle; 501. Protective cylinder; 6. Support cylinder; 601. Support plate. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4 A PCB board edge grinding device includes a workbench 1, on the top surface of which a plurality of PCB boards are arranged. A bracket 101 is fixed on the top surface of the workbench 1, and a grinding roller 102 is arranged on the bottom surface of the bracket 101. A positioning component for positioning and mounting the PCB boards is arranged on the top surface of the workbench 1. The positioning component includes a positioning seat 2 arranged above the workbench 1. A drive rod 201 is arranged on all four sides of the outer wall of the positioning seat 2. A clamping plate 202 is fixed at the end of the drive rod 201 away from the positioning seat 2. An isolation frame 203 is placed between two adjacent PCB boards.

[0023] Reference Figures 2-4In this embodiment, an electric push rod 204 is fixed at the center of the top surface of the workbench 1. The top end of the telescopic rod of the electric push rod 204 is fixed to the bottom surface of the positioning seat 2. A hollow shaft motor 205 is fixed inside the positioning seat 2 near both the top and bottom surfaces. A bidirectional lead screw 206 is fixed in the shaft hole of the hollow shaft motor 205. Both ends of the bidirectional lead screw 206 extend to the outside of the positioning seat 2. Two front and rear corresponding drive rods 201 and two left and right corresponding drive rods 201 are respectively threaded to the two ends of the two bidirectional lead screws 206. The PCBs requiring edge grinding are stacked vertically, with a spacer 203 placed between adjacent PCBs to create a gap larger than the thickness of the grinding roller 102. The processed PCB is then placed on the top surface of the positioning seat 2. The hollow shaft motor 205 is then activated, driving the bidirectional lead screw 206 to rotate. With two drive rods 201 threaded to both ends of the bidirectional lead screw 206, the two bidirectional lead screws 206 respectively drive the four drive rods 201 towards the positioning seat 2. The four clamping plates 202 move closer to the positioning seat 2, clamping and positioning the PCB board. Then, the electric push rod 204 is activated, causing the positioning seat 2 to rise, moving the uppermost PCB board to the same height as the grinding roller 102. The grinding roller 102 is then moved to one side of the PCB board, at which point the clamping plates 202 on this side release their grip on the PCB board, thus avoiding the grinding roller 102. The grinding roller 102 is then driven to rotate and move along one side of the PCB board for grinding. When the grinding roller 102... 2. When moving to other sides of the PCB board, the previously loosened clamping plate 202 re-clamps the PCB board, while the clamping plate 202 on the same side as the grinding roller 102 is released to avoid it, thereby grinding all four edges of the PCB board. After grinding one PCB board, the positioning seat 2 rises, allowing the lower PCB board to move to the grinding roller 102 for further grinding, thus ensuring continuous grinding of the PCB board by the grinding roller 102. There is no need to adjust the PCB board and reposition it in the middle, nor is it necessary to load the PCB boards one by one, which increases the grinding efficiency of the PCB board.

[0024] Reference Figures 2-4 In this embodiment, a gantry slide 3 is fixed on the top surface of the bracket 101, and a reduction motor 301 is installed on the drive seat of the gantry slide 3. The grinding roller 102 is fixed to the output shaft of the reduction motor 301. By setting the gantry slide 3, the grinding roller 102 can be driven to move along the four sides of the PCB board. The reduction motor 301 can drive the grinding roller 102 to rotate and grind the PCB board.

[0025] Reference Figures 2-4 In this embodiment, heat dissipation holes 4 are provided on all four sides of the outer wall of the positioning seat 2. The hollow shaft motor 205 can be cooled by setting the heat dissipation holes 4.

[0026] Reference Figures 2-4 In this embodiment, inclined baffles 5 are fixed on all four sides of the outer wall of the positioning seat 2 corresponding to the heat dissipation holes 4, and protective cylinders 501 are also fixed on all four sides of the outer wall of the positioning seat 2. The drive rod 201 is slidably disposed inside the protective cylinder 501. The outer wall of the drive rod 201 is provided with a limiting protrusion, and the inner wall of the protective cylinder 501 is provided with a limiting groove that is adapted to slide with the limiting protrusion. The inclined baffles 5 can block the heat dissipation holes 4, and the protective cylinder 501 can block the bidirectional lead screw 206 to prevent grinding debris from falling into the positioning seat 2 or onto the bidirectional lead screw 206, thus affecting the operation of the equipment.

[0027] Reference Figures 2-4 In this embodiment, two support cylinders 6 are fixed on the top surface of the workbench 1. A support plate 601 is slidably arranged inside the support cylinder 6. The support plate 601 is fixed to the bottom surface of the positioning seat 2. By setting the support cylinders 6 and the support plate 601, the positioning seat 2 can be raised and lowered to achieve the functions of limiting and supporting.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, when it is necessary to grind the edges of a PCB board, the PCB boards to be ground are stacked up and down, and a spacer 203 is placed between two adjacent PCB boards to leave a gap between them. This gap needs to be greater than the thickness of the grinding roller 102. Then, the processed PCB board is placed on the top surface of the positioning seat 2. Then, the hollow shaft motor 205 is started to drive the bidirectional lead screw 206 to rotate. Under the action of two drive rods 201 threaded at both ends of the bidirectional lead screw 206, the two bidirectional lead screws 206 respectively drive the four drive rods 201 to move closer to the positioning seat 2, thereby causing the four clamping plates 202 to move closer to the positioning seat 2 and clamp and position the PCB board. Then, the electric push rod 204 is started to lift the positioning seat 2, so that the topmost PCB board moves to the grinding roller 102. At the same height position, the gantry slide 3 is then started to move the grinding roller 102 to one side of the PCB board. At this time, the clamping plate 202 on this side releases its grip on the PCB board to avoid the grinding roller 102. Then the reduction motor 301 starts to drive the grinding roller 102 to rotate. The gantry slide 3 drives the grinding roller 102 to move along one side of the PCB board for grinding. When the grinding roller 102 moves to other sides of the PCB board, the previously released clamping plate 202 re-clamps the PCB board, while the clamping plate 202 on the same side as the grinding roller 102 releases to avoid it, thus grinding all four edges of the PCB board. After grinding one PCB board, the positioning seat 2 rises to move the lower PCB board to the grinding roller 102 for further grinding, thus ensuring continuous grinding of the PCB board by the grinding roller 102. There is no need to adjust the PCB board and reposition it in the middle, nor is it necessary to load the PCB board one by one, which increases the grinding efficiency of the PCB board.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PCB board edge grinding device, comprising a worktable (1), characterized in that, The top surface of the workbench (1) is provided with several PCB boards. A bracket (101) is fixed on the top surface of the workbench (1). A grinding roller (102) is provided on the bottom surface of the bracket (101). A positioning component for positioning and installing PCB boards is provided on the top surface of the workbench (1). The positioning component includes a positioning seat (2) provided above the workbench (1). A drive rod (201) is provided on all four sides of the outer wall of the positioning seat (2). A clamping plate (202) is fixed at the end of the drive rod (201) away from the positioning seat (2). Among the several PCB boards, an isolation frame (203) is placed between two adjacent PCB boards.

2. The PCB board edge grinding device according to claim 1, characterized in that, An electric push rod (204) is fixed at the center of the top surface of the workbench (1). The top end of the telescopic rod of the electric push rod (204) is fixed to the bottom surface of the positioning seat (2). A hollow shaft motor (205) is fixed inside the positioning seat (2) near the top surface and near the bottom surface. A two-way lead screw (206) is fixed in the shaft hole of the hollow shaft motor (205). The two ends of the two-way lead screw (206) extend to the outside of the positioning seat (2). The two front and rear corresponding drive rods (201) and the two left and right corresponding drive rods (201) are respectively threaded to the two ends of the two two-way lead screws (206).

3. The PCB board edge grinding device according to claim 2, characterized in that, The top surface of the bracket (101) is fixed with a gantry slide (3), and the drive seat of the gantry slide (3) is equipped with a geared motor (301). The grinding roller (102) is fixed with the output shaft of the geared motor (301).

4. The PCB board edge grinding device according to claim 3, characterized in that, The positioning seat (2) has heat dissipation holes (4) on all four sides of its outer wall.

5. A PCB board edge grinding device according to claim 4, characterized in that, The positioning seat (2) has inclined baffles (5) fixed on all four sides of the outer wall corresponding to the heat dissipation holes (4). The positioning seat (2) also has protective cylinders (501) fixed on all four sides of the outer wall. The drive rod (201) and the protective cylinder (501) are slidably arranged inside. The outer wall of the drive rod (201) is provided with a limiting protrusion, and the inner wall of the protective cylinder (501) is provided with a limiting groove that is adapted to slide with the limiting protrusion.

6. The PCB board edge grinding device according to claim 5, characterized in that, The top surface of the workbench (1) is fixed with two support cylinders (6), and a support plate (601) is slidably arranged inside the support cylinder (6). The support plate (601) is fixed to the bottom surface of the positioning seat (2).

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