A PCB board golden finger milling machine bevel edge mechanism

By designing a beveled edge mechanism for a PCB board gold finger milling machine with components such as a gantry and a U-shaped plate, the problem of low efficiency in single-sided milling of PCB boards in the existing technology is solved, and multiple PCB boards can be beveled simultaneously, thus improving processing efficiency and speed.

CN224309676UActive Publication Date: 2026-06-02惠州市福芯电子五金有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
惠州市福芯电子五金有限公司
Filing Date
2025-04-29
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing PCB board gold finger milling machines can only mill one side of the PCB board at a time, requiring manual flipping to process the other side, resulting in low efficiency and slow speed in oblique edge operations.

Method used

A bevel mechanism for a PCB board gold finger milling machine was designed. It uses components such as a gantry frame, a rotating shaft, a U-shaped plate, a positioning rod, and an adjusting motor to simultaneously fix and flip multiple PCB boards. Combined with a cutting motor and a cutting head, it performs double-sided bevel processing.

Benefits of technology

This technology enables simultaneous beveling of multiple PCBs, improving work efficiency and speed, as well as enhancing processing accuracy and stability.

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Abstract

The utility model relates to a gold finger bevel processing technical field especially is a kind of PCB gold finger milling machine bevel mechanism, including portal frame, the inside swing joint of portal frame has pivot, the one end fixedly connected with gear of pivot, the other end fixedly connected with U-shaped plate of pivot, the inside of U-shaped plate is provided with press plate, the top of press plate is fixedly connected with positioning rod, the top of two positioning rods is fixedly connected with baffle, the bottom of baffle is fixedly connected with spring, the top of U-shaped plate is screw thread connection has bolt, the bottom fixedly connected with pressing block of bolt, the outer wall of portal frame is fixedly connected with support plate, and the outer wall of support plate is installed with adjusting motor, and the output of adjusting motor is fixedly connected with adjusting screw rod, and the outer wall screw thread connection of adjusting screw rod has adjusting block. The utility model can carry out bevel processing to multiple PCBs simultaneously, and can carry out bevel processing to both sides of the insertion edge of PCB, with high bevel processing efficiency and speed.
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Description

Technical Field

[0001] This utility model relates to the field of bevel processing of gold fingers, and in particular to a bevel mechanism for a PCB board gold finger milling machine. Background Technology

[0002] The bevel mechanism of the PCB board gold finger milling machine is a support device for making the bevel of the gold finger board. In the field of PCB board manufacturing, the gold finger is a key component for electrical connection between the board and the slot, and the bevel machining accuracy of the gold finger directly affects the signal transmission stability and the service life of insertion and removal.

[0003] When applying for this utility model, the applicant, after searching, discovered a Chinese patent disclosed "A Bevel Mechanism for a PCB Board Gold Finger Milling Machine," application number "CN202222334268.1." This patent describes a gold finger board positioning table placed on a flat milling machine. A forming milling machine is used with a corresponding program or angled tool to adjust the depth before beveling, better meeting the beveling requirements of the gold finger board. It features high-precision beveling angles or depths. The PCB board is positioned on the flat milling machine via the gold finger board positioning table. The processing tool is positioned on the milling machine via a tool positioning mechanism and is driven to rotate. The beveling head at the bottom of the processing tool processes the beveled portion of the PCB board and shapes the beveled portion of the gold finger. The beveled portion is then formed by drilling and milling. Using a forming milling machine with a corresponding program or angled tool results in higher processing accuracy. The entire PCB board gold finger milling machine bevel mechanism has a simple structure, is easy to operate, and performs better than traditional methods.

[0004] PCB beveling operations are typically divided into single-sided milling and double-sided milling. This device can only mill one side of the PCB board at a time. When it is necessary to mill the other side, the PCB board needs to be manually flipped. Furthermore, this device can only perform beveling operations on one PCB board at a time, resulting in low efficiency and slow speed in beveling operations. Utility Model Content

[0005] In view of this, the present invention provides a bevel mechanism for a PCB board gold finger milling machine. The main technical problem to be solved is that the existing device can only mill one side of the PCB board at a time. When it is necessary to mill the other side, the PCB board needs to be flipped manually. In addition, the device can only perform bevel operations on one PCB board at a time, resulting in low efficiency and slow speed of bevel operations.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a bevel mechanism for a PCB board gold finger milling machine, comprising a gantry frame, with multiple rotating shafts movably connected inside the gantry frame. One end of each rotating shaft is fixedly connected to a gear, and the other end is fixedly connected to a U-shaped plate. A pressure plate is provided inside the U-shaped plate, and two positioning rods are fixedly connected to the top of the pressure plate. Each positioning rod has a baffle fixedly connected to its top, and a spring is fixedly connected to the bottom of the baffle. A bolt is threadedly connected to the top of the U-shaped plate, and a pressure block is fixedly connected to the bottom of the bolt. A support plate is fixedly connected to the outer wall of the gantry frame, and an adjusting motor is installed on the outer wall of the support plate. An adjusting screw is fixedly connected to the output end of the adjusting motor, and an adjusting block is threadedly connected to the outer wall of the adjusting screw. A rack is fixedly connected to the top of the adjusting block.

[0007] By adopting the above technical solution, multiple PCBs can be beveled at the same time, and the PCBs can be flipped to bevel the other side.

[0008] As a further description of the above technical solution:

[0009] The gear is located outside the gantry frame, the U-shaped plate is located inside the gantry frame, the positioning rod passes through the top of the U-shaped plate, the bottom of the spring is fixedly connected to the top of the U-shaped plate, the other end of the adjusting screw is movably connected to the inner wall of the support plate, and the upper surface of the rack meshes with the outer wall of the multiple gears.

[0010] By adopting the above technical solution, the meshing of the rack and pinion with multiple gears enables the multiple gears to rotate synchronously.

[0011] As a further description of the above technical solution:

[0012] Each of the multiple rotating shafts has a positioning ring fixedly connected to its outer wall, and there are two positioning rings, which are located inside and outside the gantry frame, respectively.

[0013] By adopting the above technical solutions, the stability of the rotating shaft during rotation is improved.

[0014] As a further description of the above technical solution:

[0015] The top of the gantry frame is provided with a moving slot, the outer wall of the moving slot is equipped with a moving motor, the output end of the moving motor is fixedly connected to a moving lead screw, the outer wall of the moving lead screw is threadedly connected to a moving block, the bottom of the moving block is fixedly connected to an electric sleeve, and the inside of the electric sleeve is movably connected to an electric push rod.

[0016] By adopting the above technical solution, the moving block, electric sleeve, and electric push rod can move linearly.

[0017] As a further description of the above technical solution:

[0018] A cutting motor is fixedly connected to the bottom of the electric push rod, and a cutting head is fixedly connected to the output end of the cutting motor.

[0019] By adopting the above technical solution, the cutting motor drives the cutting head to rotate, applying a bevel force to the PCB board.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the movable block is movably connected with pulleys, and there are multiple pulleys. The inner wall of the movable groove is provided with pulley grooves on both sides, and the two pulleys on the same side are located inside the pulley grooves.

[0022] By adopting the above technical solution, the resistance during the movement of the moving block is reduced.

[0023] As a further description of the above technical solution:

[0024] The bottom of the gantry is fixedly connected to a workbench, and the bottom of the workbench is fixedly connected to multiple legs.

[0025] By adopting the above technical solutions, the stability of the workbench is improved.

[0026] As a further description of the above technical solution:

[0027] A reinforcing plate is fixedly connected between the two legs on the same side, and the reinforcing plate is X-shaped.

[0028] By adopting the above technical solution, the stability of the worktable supported by multiple legs is improved.

[0029] By employing the above technical solution, the bevel mechanism of the PCB board gold finger milling machine of this utility model has at least the following beneficial effects:

[0030] 1. Compared with existing technologies, this PCB board gold finger milling machine beveling mechanism, before beveling, fixes multiple PCB boards inside multiple U-shaped plates respectively. When fixing the PCB board, one end of the PCB board is placed inside the U-shaped plate, so that the insertion edge of the PCB board is located at the open edge of the U-shaped plate. Then, rotating the bolt drives the pressure block to rotate synchronously. The pressure block moves down and presses the pressure plate down. During the downward movement of the pressure plate, two positioning rods slide down inside the U-shaped plate. At the same time, the baffles connected to the two positioning rods move synchronously, so that the two springs are in a compressed state until the pressure plate and the PCB board are inserted. With one side in close contact, the remaining multiple U-shaped plates are fixed to the PCB board in the same way. Then, the cutting head is rotated by the cutting motor to bevel the upper edge of the PCB board's insertion edge. Subsequently, the motor is adjusted to drive the adjusting screw to rotate, causing the adjusting block to move the rack along the inside of the support plate. When the rack moves, multiple gears rotate synchronously, causing multiple U-shaped plates to rotate 180 degrees, thereby beveling the other side of the PCB board's insertion edge. Multiple PCBs can be beveled simultaneously, and both sides of the PCB board's insertion edge can be beveled. The beveling process is highly efficient and fast.

[0031] 2. Compared with the prior art, the beveling mechanism of this PCB board gold finger milling machine, after multiple PCB boards are fixed, uses an electric sleeve and an electric push rod to move the cutting motor and the cutting head down synchronously until the bottom of the cutting head is flush with the insertion edge of the PCB board. Then, the moving motor runs and drives the moving screw to rotate, so that the moving block, electric sleeve and electric push rod move synchronously. At the same time, the cutting motor runs and drives the cutting head to rotate. While the cutting motor follows the electric push rod, it moves along the insertion edge of the PCB board to bevele the PCB. Attached Figure Description

[0032] Figure 1 This is a first-view overall structural diagram of the bevel mechanism of a PCB board gold finger milling machine proposed in this utility model;

[0033] Figure 2 This is a second-view overall structural diagram of the bevel mechanism of a PCB board gold finger milling machine proposed in this utility model;

[0034] Figure 3 This is a front plan view of the bevel mechanism of a PCB board gold finger milling machine proposed in this utility model;

[0035] Figure 4 This is a schematic diagram of the internal structure of the bevel mechanism of a PCB board gold finger milling machine proposed in this utility model;

[0036] Figure 5 This is a schematic diagram of the gear, U-shaped plate, and pressure plate structure of the bevel mechanism of a PCB board gold finger milling machine proposed in this utility model;

[0037] Figure 6 This is a schematic diagram of the moving block structure of the bevel mechanism of a PCB board gold finger milling machine proposed in this utility model;

[0038] Figure 7 This utility model proposes a beveled edge mechanism for a PCB board gold finger milling machine.

[0039] Legend:

[0040] 1. Gantry frame; 2. Rotating shaft; 3. Gear; 4. U-shaped plate; 5. Pressure plate; 6. Positioning rod; 7. Baffle; 8. Spring; 9. Bolt; 10. Pressure block; 11. Support plate; 12. Adjusting motor; 13. Adjusting screw; 14. Adjusting block; 15. Rack; 16. Positioning ring; 17. Moving groove; 18. Moving motor; 19. Moving screw; 20. Moving block; 21. Electric sleeve; 22. Electric push rod; 23. Cutting motor; 24. Cutting head; 25. Pulley; 26. Pulley groove; 27. Workbench; 28. Support leg; 29. ​​Reinforcing plate. Detailed Implementation

[0041] Reference Figure 1-7This utility model provides a bevel mechanism for a PCB board gold finger milling machine: It includes a gantry frame 1, with multiple rotating shafts 2 movably connected inside the gantry frame 1. One end of each rotating shaft 2 is fixedly connected to a gear 3, and the other end is fixedly connected to a U-shaped plate 4. A pressure plate 5 is installed inside the U-shaped plate 4, and two positioning rods 6 are fixedly connected to the top of the pressure plate 5. Each positioning rod 6 has a baffle 7 fixedly connected to its top, and a spring 8 is fixedly connected to the bottom of the baffle 7. The top of the U-shaped plate 4... A bolt 9 is threadedly connected, and a pressure block 10 is fixedly connected to the bottom of the bolt 9. A support plate 11 is fixedly connected to the outer wall of the gantry frame 1. An adjusting motor 12 is installed on the outer wall of the support plate 11. An adjusting screw 13 is fixedly connected to the output end of the adjusting motor 12. An adjusting block 14 is threadedly connected to the outer wall of the adjusting screw 13. A rack 15 is fixedly connected to the top of the adjusting block 14. Before the inclined side operation, multiple PCB boards are fixed inside multiple U-shaped plates 4 respectively. When fixing the PCB boards, one end of the PCB board is placed inside the U-shaped plate 4. The PCB board's insertion edge is positioned at the open edge of the U-shaped plate 4. Then, rotating bolt 9 causes pressure block 10 to rotate synchronously, pressing down on pressure plate 5. During this downward movement, two positioning rods 6 slide down inside the U-shaped plate 4, while baffles 7 connected to the two positioning rods 6 move synchronously, compressing the two springs 8 until pressure plate 5 is in close contact with the PCB board's insertion edge. The remaining U-shaped plates 4 are fixed to the PCB board in the same way. Then, the cutting motor 23 drives the cutting... The cutting head 24 rotates to bevel the upper edge of the PCB's insertion edge. Then, the adjusting motor 12 drives the adjusting screw 13 to rotate, causing the adjusting block 14 to move the rack 15 along the inside of the support plate 11. When the rack 15 moves, multiple gears 3 rotate synchronously, causing multiple U-shaped plates 4 to rotate 180 degrees, thereby beveling the other side of the PCB's insertion edge. Multiple PCBs can be beveled simultaneously, and both sides of the PCB's insertion edge can be beveled. The beveling process is efficient and fast.

[0042] Gear 3 is located outside the gantry frame 1, U-shaped plate 4 is located inside the gantry frame 1, positioning rod 6 passes through the top of U-shaped plate 4, bottom of spring 8 is fixedly connected to top of U-shaped plate 4, other end of adjusting screw 13 is movably connected to inner wall of support plate 11, and upper surface of rack 15 meshes with outer wall of multiple gears 3.

[0043] The outer walls of multiple rotating shafts 2 are fixedly connected with positioning rings 16, and there are two positioning rings 16. The two positioning rings 16 are located inside and outside the gantry frame 1, respectively, making the rotation process of the rotating shafts 2 more stable.

[0044] A moving slot 17 is provided on the top of the gantry frame 1. A moving motor 18 is installed on the outer wall of the moving slot 17. A moving lead screw 19 is fixedly connected to the output end of the moving motor 18. A moving block 20 is threadedly connected to the outer wall of the moving lead screw 19. The operation of the moving motor 18 drives the moving lead screw 19 to rotate, so that the moving block 20, the electric sleeve 21, and the electric push rod 22 move synchronously. The bottom of the moving block 20 is fixedly connected to the electric sleeve 21. The electric push rod 22 is movably connected inside the electric sleeve 21. After multiple PCB boards are fixed, the electric sleeve 21 and the electric push rod 22 move down to make the cutting motor 23 and the cutting head 24 move down synchronously until the bottom of the cutting head 24 is flush with the insertion edge of the PCB board. The bottom of the electric push rod 22 is fixedly connected to the cutting motor 23. The output end of the cutting motor 23 is fixedly connected to the cutting head 24. While the cutting motor 23 moves with the electric push rod 22, it moves along the edge of the insertion edge of the PCB board to perform bevel processing on the PCB.

[0045] The outer wall of the movable block 20 is movably connected with pulleys 25, and there are multiple pulleys 25. The inner wall of the movable groove 17 is provided with pulley grooves 26 on both sides. Two pulleys 25 on the same side are located inside the pulley grooves 26 to reduce the resistance when the movable block 20 moves.

[0046] The bottom of the gantry frame 1 is fixedly connected to a workbench 27, and the bottom of the workbench 27 is fixedly connected to a support leg 28. There are multiple support legs 28, and a reinforcing plate 29 is fixedly connected between two support legs 28 on the same side. The reinforcing plate 29 is X-shaped.

[0047] Working principle: Before the bevel operation, multiple PCB boards are fixed inside multiple U-shaped plates 4. When fixing the PCB boards, one end of the PCB board is placed inside the U-shaped plate 4, so that the insertion edge of the PCB board is located at the open edge of the U-shaped plate 4. Then, the bolt 9 is rotated to drive the pressure block 10 to rotate synchronously. The pressure block 10 moves down and presses the pressure plate 5 down. During the downward movement of the pressure plate 5, the two positioning rods 6 slide down inside the U-shaped plate 4. At the same time, the baffles 7 connected to the two positioning rods 6 move synchronously, so that the two springs 8 are in a compressed state until the pressure plate 5 is in close contact with the insertion edge of the PCB board. The remaining multiple U-shaped plates 4 are fixed to the PCB boards in the same way. After multiple PCB boards are fixed, the electric sleeve 21 and the electric push rod 22 are moved down to cut. Motor 23 and cutting head 24 move down synchronously until the bottom of cutting head 24 is flush with the insertion edge of PCB board. Then, moving motor 18 drives moving screw 19 to rotate, causing moving block 20, electric sleeve 21 and electric push rod 22 to move synchronously. At the same time, cutting motor 23 drives cutting head 24 to rotate. While moving with electric push rod 22, cutting motor 23 moves along the insertion edge of PCB board to bevel the PCB. Then, adjusting motor 12 drives adjusting screw 13 to rotate, causing adjusting block 14 to drive rack 15 to move along the inside of support plate 11. When rack 15 moves, multiple gears 3 rotate synchronously, causing multiple U-shaped plates 4 to rotate 180 degrees, thereby beveling the other side of the insertion edge of PCB board.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bevel mechanism for a PCB board gold finger milling machine, comprising a gantry frame (1), characterized in that: The gantry frame (1) is internally connected to a rotating shaft (2), and there are multiple rotating shafts (2). One end of each rotating shaft (2) is fixedly connected to a gear (3), and the other end of each rotating shaft (2) is fixedly connected to a U-shaped plate (4). A pressure plate (5) is provided inside the U-shaped plate (4). A positioning rod (6) is fixedly connected to the top of the pressure plate (5), and there are two positioning rods (6). A baffle (7) is fixedly connected to the top of each of the two positioning rods (6), and a baffle (7) is fixedly connected to the bottom of the baffle (7). A spring (8) is attached to the top of the U-shaped plate (4) with a bolt (9) threaded on it. A pressure block (10) is fixedly connected to the bottom of the bolt (9). A support plate (11) is fixedly connected to the outer wall of the gantry frame (1). An adjusting motor (12) is installed on the outer wall of the support plate (11). An adjusting screw (13) is fixedly connected to the output end of the adjusting motor (12). An adjusting block (14) is threadedly connected to the outer wall of the adjusting screw (13). A rack (15) is fixedly connected to the top of the adjusting block (14).

2. The bevel mechanism for a PCB board gold finger milling machine according to claim 1, characterized in that: The gear (3) is located outside the gantry (1), the U-shaped plate (4) is located inside the gantry (1), the positioning rod (6) passes through the top of the U-shaped plate (4), the bottom of the spring (8) is fixedly connected to the top of the U-shaped plate (4), the other end of the adjusting screw (13) is movably connected to the inner wall of the support plate (11), and the upper surface of the rack (15) meshes with the outer wall of the multiple gears (3).

3. The bevel mechanism for a PCB board gold finger milling machine according to claim 1, characterized in that: The outer walls of the multiple rotating shafts (2) are fixedly connected with positioning rings (16), and there are two positioning rings (16), which are located inside and outside the gantry frame (1) respectively.

4. The bevel mechanism for a PCB board gold finger milling machine according to claim 1, characterized in that: The top of the gantry (1) is provided with a moving groove (17), and a moving motor (18) is installed on the outer wall of the moving groove (17). The output end of the moving motor (18) is fixedly connected to a moving screw (19). The outer wall of the moving screw (19) is threadedly connected to a moving block (20). The bottom of the moving block (20) is fixedly connected to an electric sleeve (21), and an electric push rod (22) is movably connected inside the electric sleeve (21).

5. The bevel mechanism for a PCB board gold finger milling machine according to claim 4, characterized in that: The bottom of the electric push rod (22) is fixedly connected to a cutting motor (23), and the output end of the cutting motor (23) is fixedly connected to a cutting head (24).

6. The bevel mechanism for a PCB board gold finger milling machine according to claim 4, characterized in that: The outer wall of the movable block (20) is movably connected with pulleys (25), and there are multiple pulleys (25). The inner walls of the movable groove (17) are provided with pulley grooves (26) on both sides, and the two pulleys (25) on the same side are located inside the pulley grooves (26).

7. The bevel mechanism for a PCB board gold finger milling machine according to claim 1, characterized in that: The bottom of the gantry (1) is fixedly connected to a workbench (27), and the bottom of the workbench (27) is fixedly connected to a support leg (28), and there are multiple support legs (28).

8. The bevel mechanism for a PCB board gold finger milling machine according to claim 7, characterized in that: A reinforcing plate (29) is fixedly connected between the two legs (28) on the same side, and the reinforcing plate (29) is X-shaped.