Pin disassembling machine for protecting PCB (Printed Circuit Board)

Abstract

The utility model relates to the technical field of pin dismounting machines, and discloses a pin dismounting machine for protecting a PCB (Printed Circuit Board), which comprises a base, the upper surface of the base is fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with a top plate, the upper surface of the top plate is fixedly connected with an air cylinder, the lower end of the top plate is provided with a threaded column, and the threaded column is fixedly connected with the air cylinder. The surface of the threaded column is sleeved with a gasket, the surface of the threaded column is in threaded connection with a nut, the bottom of the nut is fixedly connected with a fixing rod, the surface of the fixing rod is sleeved with a spring, and the bottom of the fixing rod is fixedly connected with an extrusion block. The air cylinder is started, the air cylinder pushes the threaded column to move downwards and pushes the nut to move, the nut pushes the fixing rod to move downwards, meanwhile, the nut can extrude the spring, punching force is buffered and reduced through the spring, then the pin is extruded and withdrawn through the extrusion block, and therefore damage to a product in the pin withdrawing process is reduced; and the protection on the PCB is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pin removing machines, in particular to a pin removing machine for protecting a PCB circuit board. Background Art

[0002] PCB board is a board made of insulating and heat-insulating materials with a certain strength. Its surface is usually covered with copper foil, which is etched to form a mesh of fine lines to provide circuit connections between parts. PCB boards are used in almost every electronic device, from electronic watches to computers and communication electronic equipment. PCB boards are used to achieve electrical interconnection between electronic components. During the production process, when punching the mounting holes of the PCB board, it is necessary to stack the PCB boards in multiple layers to form a PCB board group, and then pins are punched to assist in positioning the punching of the mounting holes. After the mounting holes are punched, the pins need to be withdrawn, so a PCB board pin withdrawal machine is used to complete the pin withdrawal operation.

[0003] Most of the existing pin removal machines use hydraulic or cylinder driven front end blocks to punch the pins to complete the pin removal operation. Since the punching pressure driven by hydraulic or cylinder is relatively high, the PCB board is easily damaged during the pin removal process. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a pin removing machine for protecting a PCB circuit board.

[0005] The utility model is implemented by the following technical scheme: a pin removing machine for protecting a PCB circuit board comprises a base, the upper surface of the base is fixedly connected with a support plate, the top of the support plate is fixedly connected with a top plate, the upper surface of the top plate is fixedly connected with a cylinder, a threaded column is arranged at the lower end of the top plate, a gasket is sleeved on the surface of the threaded column, a nut is threadedly connected to the surface of the threaded column, a fixing rod is fixedly connected to the bottom of the nut, a spring is sleeved on the surface of the fixing rod, and an extrusion block is fixedly connected to the bottom of the fixing rod.

[0006] Through the above technical solution, the output end of the cylinder pushes the threaded column to move downward, driving the nut to move downward, causing the fixed plate to move downward to drive the extrusion block to extrude and remove the pin.

[0007] As a further improvement of the above solution, a through hole is opened on the inner wall of the top plate, and the output end of the cylinder passes through the top plate through the through hole and is fixedly connected to the top of the threaded column.

[0008] As a further improvement of the above solution, the upper surface of the nut contacts the lower surface of the gasket, and the bottom of the top plate is threadedly connected to the vertical plate via bolts.

[0009] Through the above technical solution, the vertical plate can be disassembled by removing the bolts, and then the spring can be replaced. By turning the disassembly nut, the extrusion block can be quickly disassembled and replaced, which is convenient for replacing extrusion blocks of different sizes.

[0010] As a further improvement of the above solution, a fixing plate is fixedly connected to the bottom of the vertical plate, and the fixing plate is located at the lower end of the fixing rod.

[0011] As a further improvement of the above solution, a fixing hole is opened on the inner wall of the fixing plate, the extrusion block is located inside the fixing hole, the upper surface of the fixing plate contacts the bottom of the spring, and the upper surface of the spring contacts the bottom of the nut.

[0012] Through the above technical solution, the extrusion block can pass through the fixing plate through the fixing hole, and the nut will squeeze the spring when it moves downward, which can buffer the stamping pressure and reduce damage to the product during the pin withdrawal process.

[0013] As a further improvement of the above solution, the fixing plate is located at the upper end of the base, and a through groove is provided on the upper surface of the base.

[0014] Through the above technical solution, the disassembled pins are dropped into the drawer through the through slots.

[0015] As a further improvement of the above solution, a slide groove is provided on the inner wall of the base, a drawer is slidably connected to the inner wall of the slide groove, and a handle is fixedly connected to one end of the drawer.

[0016] Through the above technical solution, the disassembled pins are stored in the drawer, which is convenient for subsequent unified processing of the pins, and the drawer is pulled by the handle to slide on the inner wall of the slide groove, so that the drawer can be taken out.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model arranges a cylinder, a threaded column, a nut, a fixing rod, an extrusion block and a spring. Specifically, the cylinder is started, the cylinder pushes the threaded column to move downward, pushes the nut to move, the nut pushes the fixing rod to move downward, and the nut squeezes the spring at the same time, the punching force is buffered by the spring to reduce the pressure, and then the extrusion block squeezes the pin to withdraw the pin, thereby reducing damage to the product in the process of withdrawing the pin and improving the protection of the PCB.

[0019] The utility model provides a vertical plate, a threaded column and a nut. Specifically, the vertical plate is removed by dismantling the bolts, and then the nut is removed from the surface of the threaded column by rotating the nut. Then, extrusion blocks and springs of different sizes can be replaced, which is convenient for replacing the springs and the extrusion blocks and improves convenience in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the threaded column connection structure of the utility model;

[0023] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0024] Figure 5 It is a schematic diagram of the overall structure of the utility model.

[0025] Description of main symbols:

[0026] 1. Base; 2. Support plate; 3. Top plate; 4. Cylinder; 5. Through hole; 6. Threaded column; 7. Gasket; 8. Nut; 9. Fixing rod; 10. Spring; 11. Fixing plate; 12. Extrusion block; 13. Fixing hole; 14. Vertical plate; 15. Through slot; 16. Drawer; 17. Handle; 18. Slide slot. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] Example:

[0029] Please combine Figure 1-5 The pin removing machine for protecting PCB circuit boards of the present embodiment comprises a base 1, a support plate 2 is fixedly connected to the upper surface of the base 1, a top plate 3 is fixedly connected to the top of the support plate 2, a cylinder 4 is fixedly connected to the upper surface of the top plate 3, a threaded column 6 is arranged at the lower end of the top plate 3, a gasket 7 is sleeved on the surface of the threaded column 6, a nut 8 is threadedly connected to the surface of the threaded column 6, a fixing rod 9 is fixedly connected to the bottom of the nut 8, a spring 10 is sleeved on the surface of the fixing rod 9, and an extrusion block 12 is fixedly connected to the bottom of the fixing rod 9. By starting the cylinder 4, the cylinder pushes the threaded column 6 to move downward, pushes the nut 8 to move, and the nut 8 pushes the fixing rod 9 to move downward, and at the same time, the nut 8 squeezes the spring 10, and the punching force is buffered by the spring 10 to reduce the pressure, and then the extrusion block 12 squeezes and withdraws the pin, thereby reducing damage to the product in the process of withdrawing the pin and improving the protection of the PCB.

[0030] A through hole 5 is formed on the inner wall of the top plate 3 , and the output end of the cylinder 4 passes through the through hole 5 and penetrates the top plate 3 and is fixedly connected to the top of the threaded column 6 .

[0031] The upper surface of the nut 8 contacts the lower surface of the gasket 7, and the bottom of the top plate 3 is threadedly connected to the vertical plate 14 via bolts.

[0032] The bottom of the vertical plate 14 is fixedly connected with a fixing plate 11 , and the fixing plate 11 is located at the lower end of the fixing rod 9 .

[0033] A fixing hole 13 is provided on the inner wall of the fixing plate 11, and the extrusion block 12 is located inside the fixing hole 13. The upper surface of the fixing plate 11 contacts the bottom of the spring 10, and the upper surface of the spring 10 contacts the bottom of the nut 8. When the extrusion block 12 needs to be replaced, the vertical plate 14 is removed by dismantling the bolts, and then the nut 8 is removed from the surface of the threaded column 6 by rotating the nut 8, so that the extrusion blocks 12 and springs 10 of different sizes can be replaced, which is convenient for replacing the spring 10 and the extrusion block 12, thereby improving the convenience in actual use.

[0034] The fixing plate 11 is located at the upper end of the base 1 , and a through slot 15 is formed on the upper surface of the base 1 .

[0035] A slide groove 18 is provided on the inner wall of the base 1, and a drawer 16 is slidably connected to the inner wall of the slide groove 18. A handle 17 is fixedly connected to one end of the drawer 16. The disassembled pins fall into the interior of the drawer 16 through the through groove 15. The pins are stored in the drawer 16 to facilitate subsequent unified processing of the pins. The drawer 16 can be removed by pulling the handle 17 to drive the drawer 16 to slide on the inner wall of the slide groove 18.

[0036] The implementation principle of a pin removal machine for protecting a PCB circuit board in the embodiment of the present application is as follows: when in use, the PCB board is placed on the upper surface of the base 1, the pin position is aligned with the extrusion block 12, and then the cylinder 4 is started, the cylinder pushes the threaded column 6 to move downward, pushes the nut 8 to move, and the nut 8 pushes the fixing rod 9 to move downward, and at the same time the nut 8 squeezes the spring 10, and the spring 10 buffers the punching force to reduce the pressure, and then the extrusion block 12 squeezes the pin to withdraw the pin, thereby reducing damage to the product during the pin withdrawal process and improving the protection of the PCB. After disassembly, the pins fall into the inside of the drawer 16 through the through groove 15, and the pins are stored in the drawer 16, which is convenient for subsequent unified processing of the pins. The drawer 16 can be removed by pulling the handle 17 to drive the drawer 16 to slide on the inner wall of the slide groove 18. When the extrusion block 12 needs to be replaced, the vertical plate 14 is removed by removing the bolts, and then the nut 8 is removed from the surface of the threaded column 6 by rotating the nut 8, so that the extrusion blocks 12 and springs 10 of different sizes can be replaced, which is convenient for replacing the spring 10 and the extrusion block 12, thereby improving the convenience in actual use.

[0037] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pin removal machine for protecting PCB circuit boards, characterized in that: The invention comprises a base (1), the upper surface of the base (1) is fixedly connected to a support plate (2), the top of the support plate (2) is fixedly connected to a top plate (3), the upper surface of the top plate (3) is fixedly connected to a cylinder (4), a threaded column (6) is arranged at the lower end of the top plate (3), a gasket (7) is sleeved on the surface of the threaded column (6), a nut (8) is threadedly connected on the surface of the threaded column (6), a fixing rod (9) is fixedly connected to the bottom of the nut (8), a spring (10) is sleeved on the surface of the fixing rod (9), and an extrusion block (12) is fixedly connected to the bottom of the fixing rod (9).

2. A pin removing machine for protecting a PCB circuit board as claimed in claim 1, characterized in that: The inner wall of the top plate (3) is provided with a through hole (5), and the output end of the cylinder (4) passes through the top plate (3) through the through hole (5) and is fixedly connected to the top of the threaded column (6).

3. A pin removing machine for protecting a PCB circuit board as claimed in claim 1, characterized in that: The upper surface of the nut (8) contacts the lower surface of the gasket (7), and the bottom of the top plate (3) is threadedly connected to the vertical plate (14) via bolts.

4. A pin removing machine for protecting a PCB circuit board as claimed in claim 3, characterized in that: The bottom of the vertical plate (14) is fixedly connected to a fixing plate (11), and the fixing plate (11) is located at the lower end of the fixing rod (9).

5. A pin removing machine for protecting a PCB circuit board as claimed in claim 4, characterized in that: The inner wall of the fixing plate (11) is provided with a fixing hole (13), the extrusion block (12) is located inside the fixing hole (13), the upper surface of the fixing plate (11) contacts the bottom of the spring (10), and the upper surface of the spring (10) contacts the bottom of the nut (8).

6. A pin removing machine for protecting a PCB circuit board as claimed in claim 5, characterized in that: The fixing plate (11) is located at the upper end of the base (1), and a through groove (15) is provided on the upper surface of the base (1).

7. A pin removing machine for protecting a PCB circuit board as claimed in claim 6, characterized in that: The inner wall of the base (1) is provided with a slide groove (18), the inner wall of the slide groove (18) is slidably connected to a drawer (16), and one end of the drawer (16) is fixedly connected to a handle (17).

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