Device for pulling pin

Abstract

The utility model discloses a device for pulling out a pin in the technical field of PCB (printed circuit board) processing, which comprises an external shell, a telescopic cylinder fixedly mounted at the upper end of the interior of the external shell, a clamping chuck movably mounted at the lower end of the telescopic cylinder, a plurality of groups of clamping blocks slidably arranged at the lower end of the clamping chuck, a cylindrical cylinder arranged at the upper end of the clamping chuck, and a plurality of clamping blocks slidably arranged at the lower end of the cylindrical cylinder. The output end of the cylindrical air cylinder is fixedly connected with the clamping block, the side face of the outer shell is provided with a handle, the inner side of the handle is provided with a clamping button and a telescopic button, the bottom of the outer shell is provided with a supporting ring, and the top of the outer shell is provided with an air pipe connector. The problems that when a pin is pulled out through pliers, time and labor are wasted, the pin is prone to being broken, and the follow-up machining progress and efficiency are affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing, and particularly relates to a device for extracting pins. Background Technique

[0002] A printed circuit board (hereinafter referred to as PCB) mainly functions as a carrier for the connection of various electronic components, playing a role of relay transmission. As an indispensable part of modern electronic products, circuit boards have been widely used in fields such as communication, automotive, computer, medical devices, etc. With the development of the times, electronic products in various fields are constantly updated and iterated, putting forward higher requirements for the production level of circuit boards. Therefore, conforming to the development trend of the times and improving its own production process is an important measure to maintain the vitality of the circuit board industry.

[0003] As an important part of the circuit board processing technology, the forming processing technology mainly aims to process the circuit board into a shape and size that meet customer requirements. The general process can be divided into: incoming board → determining PIN holes → milling the first piece → inspection → mass production. In the link of determining PIN holes, positioning pins are driven into the drilled hole positions of the bakelite board. The positions where the pins are driven into different types of boards are different. Therefore, after the processing of the same type of board is completed, these positioning pins need to be taken out to facilitate the processing of the next type of board. These pins become extremely firm after being driven into the positioning holes and need to be pulled out with the help of pliers. However, when using pliers to extract the pins, it is very laborious, and if the force application angle is incorrect, it is easy to cause the pins to break, affecting the processing efficiency and the subsequent use of the bakelite board.

[0004] Based on this, the utility model designs a device for extracting pins to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for extracting pins, so as to solve the problems of time-consuming, laborious, and easy to cause the pins to break when using pliers to extract pins, which affect the subsequent processing progress and efficiency as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for extracting pins includes an external housing. Inside the external housing, a telescopic cylinder is fixedly installed at the upper end. A clamping chuck is movably installed at the lower end of the telescopic cylinder. A plurality of clamping blocks are slidably arranged at the lower end of the clamping chuck. A cylindrical cylinder is arranged at the upper end of the clamping chuck. The output end of the cylindrical cylinder is fixedly connected to the clamping block. A handle is installed on the side of the external housing. A clamping button and a telescopic button are installed inside the handle. A support ring is installed at the bottom of the external housing. An air pipe joint is installed at the top of the external housing.

[0008] Preferably, the number of the clamping blocks is three, and the clamping surfaces on each clamping block are designed as arc surfaces with grid-like patterns. Air holes are formed in the side surface of the cylindrical cylinder, and the air holes are used to connect external air supply devices.

[0009] Preferably, a threaded joint is fixedly installed at the upper end of the cylindrical cylinder, a piston rod is fixedly installed at the output end of the telescopic cylinder, and the upper end of the threaded joint is threadedly connected to the lower end of the piston rod.

[0010] Preferably, input air pipes are connected to both the air holes and the air pipe joints, and control valves are fixedly installed on the input air pipes.

[0011] Preferably, the clamping button is connected to the control valve on the input air pipe of the cylindrical cylinder, and the telescopic button is connected to the control valve on the input flagpole of the telescopic cylinder. Pressing the clamping button can clamp the clamping blocks, and pressing the telescopic button can control the telescopic cylinder to lower the piston rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the cooperation between the telescopic cylinder and the clamping blocks, the upper end of the pin is clamped by the clamping blocks, ensuring uniform force on the upper end of the pin. Moreover, the telescopic cylinder drives the clamping blocks to move upward, thereby driving the pin to move upward, making the upper traction force received by the pin also perpendicular, avoiding the problems of the pin being bent and offset during the process of pulling out the pin.

[0014] 2. In the present utility model, the user controls the pin extraction through the clamping button and the telescopic button. Pressing the clamping button makes the clamping blocks approach to clamp the pin, pressing the telescopic button drives the clamping blocks to move upward, and releasing the button makes the clamping blocks and the telescopic cylinder automatically reset, making the pin extraction easier, avoiding the problems of time-consuming and laborious when using pliers to pull out the pin, and easily causing the pin to break, affecting the subsequent processing progress and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

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

[0017] Figure 2 It is a schematic diagram of the clamping chuck structure of the present utility model;

[0018] Figure 3 Schematic diagram of the clamping chuck in the pin extraction device in this embodiment;

[0019] Figure 4 Schematic diagram of the extraction operation of the present utility model.

[0020] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Outer housing; 2. Handle; 3. Clamping button; 4. Telescopic button; 5. Support ring; 6. Air pipe joint; 7. Clamping chuck; 8. Telescopic cylinder; 9. Piston rod; 10. Clamping block; 11. Cylindrical cylinder; 12. Air hole; 13. Threaded joint. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0024] A device for extracting pins, including an outer housing 1, characterized in that: a telescopic cylinder 8 is fixedly installed at the upper end inside the outer housing 1, a clamping chuck 7 is movably installed at the lower end of the telescopic cylinder 8, a plurality of clamping blocks 10 are slidably arranged at the lower end of the clamping chuck 7, a cylindrical cylinder 11 is arranged at the upper end of the clamping chuck 7, the output end of the cylindrical cylinder 11 is fixedly connected to the clamping block 10, a handle 2 is installed on the side of the outer housing 1, a clamping button 3 and a telescopic button 4 are installed inside the handle 2, a support ring 5 is installed at the bottom of the outer housing 1, and an air pipe joint 6 is installed at the top of the outer housing 1.

[0025] Among them, the number of the clamping blocks 10 is three, the clamping surfaces on each clamping block 10 are designed as arc surfaces, and there are grid-like patterns on the arc surfaces. An air hole 12 is opened on the side of the cylindrical cylinder 11, and the air hole 12 is used to connect to an external air supply device. The grid-like patterns on the arc surfaces can increase the friction force when clamping the pins, making the clamping more stable. The clamping blocks 10 and the cylindrical cylinder 11 are installed together, and the cylindrical cylinder 11 controls the clamping or loosening of the pins by the clamping blocks.

[0026] Among them, a threaded joint 13 is fixedly installed at the upper end of the cylindrical cylinder 11, a piston rod 9 is fixedly installed at the output end of the telescopic cylinder 8, and the upper end of the threaded joint 13 is threadedly connected to the lower end of the piston rod 9.

[0027] Among them, input air pipes are connected to both the air holes 12 and the air pipe joint 6, and control valves are fixedly installed on the input air pipes.

[0028] Among them, a support ring 5 is installed at the bottom of the outer housing 1. When pulling out the pin, the support ring 5 is placed on the circuit board to play an auxiliary support role.

[0029] Among them, the clamping button 3 is connected to the control valve on the input air pipe of the cylindrical air cylinder 11, and the telescopic button 4 is connected to the control valve of the input flagpole on the telescopic air cylinder 8. Pressing the clamping button 3 can achieve the clamping of the clamping block 10, and pressing the telescopic button 4 can control the telescopic air cylinder 8 to achieve the descent of the piston rod 9.

[0030] When the pin extraction device of the present utility model is in use, it is placed flat on the bakelite board, aligned with the pin, and the pin is inserted into the center position of the clamping block 10. Then, the clamping button 3 is pressed, and the cylindrical air cylinder 11 will control the clamping block 10 to clamp the pin. Then, the telescopic button 4 is pressed, and the piston rod 9 in the telescopic air cylinder 8 will move upward, driving the clamping chuck 7 to move upward. At this time, the support ring 5 plays an auxiliary support role, and the pin is pulled out. Through the cooperation between the telescopic air cylinder 8 and the clamping block 10, the upper end of the pin is clamped by the clamping block 10 to ensure that the upper end of the pin is evenly stressed, and the telescopic air cylinder 8 is provided to drive the clamping block 10 to move upward, thereby driving the pin to move upward, so that the upper traction force received by the pin is also vertical, avoiding the problems of the pin being bent and offset during the process of pulling out the pin. In the present utility model, the user controls the pin extraction through the clamping button 3 and the telescopic button 4. Pressing the clamping button 3 makes the clamping block 10 approach to clamp the pin, and pressing the telescopic button 4 drives the clamping block 10 to move upward. Releasing the button makes the clamping block 10 and the telescopic air cylinder 8 automatically reset, making the pin extraction easier, and avoiding the problems of time-consuming and laborious when using pliers to pull out the pin, and easily causing the pin to break, affecting the subsequent processing progress and efficiency.

Claims

1. A device for extracting a pin, comprising an outer housing (1), characterized in that: A telescopic cylinder (8) is fixedly mounted on the upper end of the internal mounting of the external shell (1), a clamping chuck (7) is movably mounted on the lower end of the telescopic cylinder (8), a plurality of clamping blocks (10) are slidably mounted on the lower end of the clamping chuck (7), a cylindrical cylinder (11) is mounted on the upper end of the clamping chuck (7), an output end of the cylindrical cylinder (11) is fixedly connected to the clamping block (10), a handle (2) is mounted on the side of the external shell (1), a clamping button (3) and a telescopic button (4) are mounted on the inner side of the handle (2), a support ring (5) is mounted on the bottom of the external shell (1), and a trachea joint (6) is mounted on the top of the external shell (1).

2. A device for extracting a pin according to claim 1, characterized in that: There are three clamping blocks (10), and the clamping surface on each clamping block (10) is designed to be an arc surface with a grid-like pattern. The side of the cylindrical cylinder (11) is provided with an air hole (12), and the air hole (12) is used to connect to an external air supply device.

3. A device for extracting a pin according to claim 2, characterized in that: A threaded joint (13) is fixedly mounted on the upper end of the cylindrical cylinder (11), a piston rod (9) is fixedly mounted on the output end of the telescopic cylinder (8), and the upper end of the threaded joint (13) is threadedly connected to the lower end of the piston rod (9).

4. A device for extracting a pin according to claim 3, characterized in that: The air hole (12) and the air pipe joint (6) are both connected to an input air pipe, and a control valve is fixedly installed on the input air pipe.

5. A device for extracting a pin according to claim 4, characterized in that: The clamping button (3) is connected to a control valve on an air pipe inputted into a cylindrical cylinder (11), and the telescopic button (4) is connected to a control valve on a flagpole inputted into a telescopic cylinder (8). Pressing the clamping button (3) can achieve the clamping of the clamping block (10), and pressing the telescopic button (4) can control the telescopic cylinder (8) to achieve the lowering of the piston rod (9).

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