R milling machine for PIN machining
By designing a wedge clamping device and a multi-directional slide drive system on the milling machine, the problem of insufficient clamping force in PIN needle processing was solved, achieving stable processing and milling capability for complex structures, thus improving the stability and efficiency of PIN needle processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-14
AI Technical Summary
During the processing of PIN pins, insufficient clamping force can cause them to wobble or rotate, affecting the product yield. Furthermore, it is difficult to achieve flexible milling of complex PIN pin structures.
A milling machine was designed, which adopts a wedge-shaped clamping device. A servo manipulator and a cylinder manipulator work together with a clamping drive motor to achieve high clamping force to hold the PIN pin. The milling cutter is driven to move flexibly in multiple directions through longitudinal and vertical slides to meet the processing requirements of complex structures.
It improves the stability of PIN processing, avoids wobbling or rotation, enhances the ability to process hard materials, and meets the milling requirements of complex structures.
Smart Images

Figure CN224115237U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of PIN pin processing equipment, specifically relating to a milling machine for PIN pin processing. Background Technology
[0002] Pins are typically used in connectors to perform conductive transmission. Pin machining sometimes involves using relatively hard materials. When milling or rounding these materials, a large clamping force is required. Insufficient clamping force can cause the pins to wobble or rotate during machining, reducing the product yield. Furthermore, some pins have complex structures that require the milling cutter on the rounding machine to be flexible in its machining. Therefore, it is necessary to design a pin rounding machine capable of performing the aforementioned machining tasks. Utility Model Content
[0003] The purpose of this utility model is to address the above-mentioned problems by providing a milling machine for PIN needle processing, which can improve the clamping force of the clamping device of the milling machine, avoid the PIN needle from swinging or rotating during processing due to incomplete clamping, and also meet the milling needs of relatively complex PIN needle structures.
[0004] This utility model is achieved through the following technical solution:
[0005] A milling machine for PIN pin processing includes a machine base. A material storage device and a milling processing device are arranged side-by-side on the left and right sides of the rear of the machine base, and a transverse feeding device for left-right conveying is provided at the front. The transverse feeding device is characterized by: a servo manipulator and a cylinder manipulator mounted on the upper part of the transverse feeding device via sliding plates on the left and right sides; the servo manipulator's arm is driven by a servo motor to extend and retract in the front-back direction, and its mechanical fingers are controlled by cylinders to open and close; the cylinder manipulator's arm is driven by another cylinder to extend and retract in the front-back direction, and its mechanical fingers are controlled by a third cylinder to open and close; a longitudinal slide is provided on the base of the milling processing device, the longitudinal slide being driven by a longitudinal drive motor to slide horizontally in the front-back direction; a second vertical slide is mounted on the longitudinal slide via a frame, the second vertical slide being driven by a second vertical drive motor to slide vertically, and the mounting axis of the second vertical slide is... A horizontal electric spindle is provided, on which a milling cutter is mounted. A clamping device is provided on the machine base between the milling device and the transverse feeding device. The clamping base of the clamping device is fixed to the machine base at the bottom and has a cavity for accommodating a chuck at the top. The chuck is a pair of clamping plates with an inclined surface on the outer side and a vertical plane on the inner side. A clamping drive motor is installed on the upper part of the cavity. The clamping drive motor is connected to a vertical lead screw at the bottom. A wedge-shaped pressure plate with a lead screw nut is connected to the lower part of the lead screw. When the lead screw rotates, it drives the wedge-shaped pressure plate to move up and down. The lower part of the wedge-shaped pressure plate has a wedge-shaped opening that matches the outer inclined surface of the chuck. The cavity has a track for the wedge-shaped pressure plate to slide up and down and a track for the chuck to slide left and right. When the wedge-shaped pressure plate presses down, it squeezes and clamps the chuck. When the wedge-shaped pressure plate rises, the chuck is pulled open by a spring in a stretched state. A receiving box is also provided on the machine base.
[0006] Furthermore, the storage device has a first vertical slide on the side facing the transverse feeding device, a transverse rail is provided on the first vertical slide, a transverse slide is installed on the transverse rail, and a storage plate for storing the workpiece to be processed is installed on the transverse slide.
[0007] Furthermore, the upper part of the clamping device is also equipped with a position sensor for sensing the position of the servo manipulator or cylinder manipulator, and for controlling the clamping drive motor.
[0008] Furthermore, the clamp is provided with an arc-shaped inner groove that matches the shape of the PIN pin.
[0009] Furthermore, both the longitudinal slide and the second vertical slide are driven by high-precision lead screws.
[0010] Furthermore, a control box is also installed on the machine base, which controls and adjusts the operating parameters of all drive motors and mechanical finger opening and closing cylinders on the machine base.
[0011] The beneficial effects of this utility model are as follows: The milling machine for PIN needle processing designed in this utility model has a wedge structure for clamping the workpiece, which can increase the clamping force of the clamping device of the milling machine and prevent the PIN needle from swinging or rotating during processing due to incomplete clamping, thereby improving the milling machine's ability to process hard materials; the milling processing device is equipped with a longitudinal slide and a vertical slide, which allows the milling cutter to move flexibly during processing, thereby meeting the milling processing requirements of relatively complex PIN needle structures. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0014] Figure 3 This is a schematic diagram of the clamping device of this utility model.
[0015] In the diagram, 1. Machine base, 2. Material storage device, 3. Lateral feeding device, 4. Servo robot, 5. Cylinder robot, 6. Milling device, 7. Clamping device, 8. Receiving box, 9. Control box, 21. First vertical slide, 22. Lateral slide, 23. Material storage plate, 61. Longitudinal slide, 62. Longitudinal drive motor, 63. Second vertical slide, 64. Second vertical drive motor, 65. Electric spindle, 71. Clamping base, 72. Chuck, 73. Clamping drive motor, 74. Lead screw, 75. Wedge plate, 76. Spring, 77. Position sensor. Detailed Implementation
[0016] The present invention will be further illustrated below with reference to specific examples and accompanying drawings.
[0017] like Figures 1-3As shown, a milling machine for PIN pin processing includes a machine base 1. A storage device 2 and a milling processing device 6 are arranged side-by-side on the rear left and right sides of the machine base 1, and a transverse feeding device 3 for left-right conveying is provided at the front. A first vertical slide 21 is provided on the side of the storage device 2 facing the transverse feeding device 3. A transverse rail is provided on the first vertical slide 21, and a transverse slide 22 is mounted on the transverse rail. A storage plate 23 for storing workpieces to be processed is mounted on the transverse slide 22. A servo robot 4 and a cylinder robot 5 are mounted on the upper part of the transverse feeding device 3 via sliding plates on the left and right sides. The servo robot 4... The robotic arm of the first type of machine tool is driven by a servo motor to extend and retract in the front-to-back direction, and the robotic fingers are controlled by cylinders to open and close. The robotic arm of the second type of machine tool is driven by another cylinder to extend and retract in the front-to-back direction, and the robotic fingers are controlled by a third cylinder to open and close. The base of the milling device 6 is provided with a longitudinal slide block 61, which is driven horizontally by a longitudinal drive motor 62 and slides in the front-to-back direction. A second vertical slide block 63 is mounted on the longitudinal slide block 61 via a frame. The second vertical slide block 63 is driven vertically by a second vertical drive motor 64, and the second vertical slide block 63 is equipped with a motor with its axis in the horizontal direction. A spindle 65 is provided, and a milling cutter is mounted on the electric spindle 65. A clamping device 7 is provided on the machine base 1 between the milling device 6 and the transverse feeding device 3. The clamping base 71 of the clamping device 7 is fixed at the lower part of the machine base 1, and a cavity for accommodating a chuck 72 is provided at the upper part. The chuck 72 is a pair of clamping plates with inclined surfaces on the outer side and vertical planes on the inner side. The inner vertical plane has an arc-shaped groove matching the shape of a pin. A clamping drive motor 73 is mounted on the upper part of the cavity. The clamping drive motor 73 is connected downward to a vertical lead screw 74. The lower part of the lead screw 74 is connected to a wedge-shaped pressure plate 75 with a lead screw nut. When rod 74 rotates, it drives wedge-shaped pressure plate 75 to move up and down. The lower part of wedge-shaped pressure plate 75 is provided with a wedge-shaped opening that matches the outer inclined surface of chuck 72. The cavity is provided with a track for the wedge-shaped pressure plate 75 to slide up and down and a track for the chuck 72 to slide left and right. When wedge-shaped pressure plate 75 presses down, it squeezes chuck 72 to clamp it. When wedge-shaped pressure plate 75 rises, chuck 72 is pulled open by spring 76 which is in a stretched state. The clamping device 7 is also equipped with a position sensor 77 on its upper part. The position sensor 77 is used to sense the position of servo manipulator 4 or cylinder manipulator 5 and to control the action of clamping drive motor 73. The machine base 1 is also provided with a receiving box 8.
[0018] Both the longitudinal slide block 61 and the second vertical slide block 63 are driven by high-precision lead screws.
[0019] The machine base 1 is also equipped with a control box 9, which controls and adjusts the operating parameters of all drive motors and mechanical finger opening and closing cylinders on the machine base 1.
[0020] This utility model designs a milling machine for PIN pin processing. During operation, the PIN pins to be processed are stored on a storage plate 23. Depending on the actual situation, a servo robot 4 or a pneumatic robot 5 can be used to pick up the PIN pins from the storage plate 23. Then, the transverse feeding device 3 drives the servo robot 4 or pneumatic robot 5 to slide to the position of the clamping device 7. The servo robot 4 or pneumatic robot 5 extends the PIN pins to be processed towards the chucks 72 of the clamping device 7. The position sensor 77 senses the position of the servo robot 4 or pneumatic robot 5, and the clamping drive motor 73 actuates, driving the lead screw 74 to push down the wedge-shaped pressure plate 75. The upper parts of the two opposing chucks 72 are squeezed and clamp the PIN pins. Then, the milling processing device 6 actuates, and the electric spindle 65 drives the milling cutter to rotate while simultaneously moving longitudinally... The slide block 61 and the second vertical slide block 63 can move simultaneously, allowing the milling cutter to move flexibly in both horizontal and vertical directions, thus completing the milling of relatively complex shapes. After the PIN is processed, the servo robot 4 or the cylinder robot 5 slides back to the position of the clamping device 7. The servo robot 4 or the cylinder robot 5 extends the PIN to be processed into the chuck 72 of the clamping device 7. The position sensor 77 senses the position of the servo robot 4 or the cylinder robot 5 again, and the clamping drive motor 73 actuates, driving the lead screw 74 to lift the wedge-shaped pressure plate 75. After the upper outer sides of the two opposing chucks 72 are released from compression, they are pulled apart by the spring 76 in a stretched state, releasing the PIN. The servo robot 4 or the cylinder robot 5 picks up the processed PIN and puts it into the receiving box 8, completing the unloading. This process is repeated to automatically complete the milling of the PIN. The wedge-shaped structure design of the clamping device 7 also increases the clamping force of the milling machine's clamping device, preventing the pin from swinging or rotating during processing due to incomplete clamping, thus improving the milling machine's ability to process hard materials.
[0021] The above embodiments are merely preferred embodiments of the present utility model and are only used to explain the present utility model, not to limit the present utility model. Any changes, substitutions, combinations, simplifications, modifications, etc., made by those skilled in the art without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A milling machine for PIN pin processing, comprising a machine base, wherein a material storage device and a milling processing device are arranged side by side on the left and right sides of the rear of the machine base, and a transverse feeding device for left-right conveying is provided at the front; characterized in that: The upper part of the transverse feeding device is equipped with a servo manipulator and a cylinder manipulator, one on the left and one on the right, via sliding plates. The servo manipulator's arm is driven by a servo motor to extend and retract in the forward and backward direction, and its mechanical fingers are controlled by cylinders to open and close. The cylinder manipulator's arm is driven by another cylinder to extend and retract in the forward and backward direction, and its mechanical fingers are controlled by a third cylinder to open and close. The base of the milling device is equipped with a longitudinal slide block, which is driven by a longitudinal drive motor to slide horizontally in the forward and backward direction. A second vertical slide block is mounted on the longitudinal slide block via a frame. The second vertical slide block is driven by a second vertical drive motor to slide vertically. An electric spindle with a horizontal axis is mounted on the second vertical slide block, and a milling cutter is mounted on the electric spindle. The milling device and the transverse feeding device... The machine base is equipped with a clamping device. The lower part of the clamping base of the clamping device is fixed to the machine base, and the upper part is provided with a cavity to accommodate the chuck. The chuck is a pair of clamping plates with an inclined surface on the outer side and a vertical plane on the inner side. A clamping drive motor is installed on the upper part of the cavity. The clamping drive motor is connected to a vertical lead screw downward. The lower part of the lead screw is connected to a wedge-shaped pressure plate with a lead screw nut. When the lead screw rotates, it drives the wedge-shaped pressure plate to move up and down. The lower part of the wedge-shaped pressure plate has a wedge-shaped opening that matches the outer inclined surface of the chuck. The cavity is provided with a track for the wedge-shaped pressure plate to slide up and down and a track for the chuck to slide left and right. When the wedge-shaped pressure plate presses down, it squeezes the chuck and clamps it. When the wedge-shaped pressure plate rises, the chuck is pulled open by a spring in a stretched state. The machine base is also equipped with a receiving box.
2. The milling machine for PIN pin processing according to claim 1, characterized in that: The storage device has a first vertical slide on the side facing the horizontal feeding device. A horizontal rail is provided on the first vertical slide, and a horizontal slide is installed on the horizontal rail. A storage plate for storing the workpiece to be processed is installed on the horizontal slide.
3. The milling machine for PIN pin processing according to claim 1, characterized in that: The clamping device is equipped with a position sensor on its upper part for sensing the position of the servo manipulator or cylinder manipulator.
4. The milling machine for PIN pin processing according to claim 1, characterized in that: The clamp is provided with an arc-shaped inner groove that matches the shape of the PIN pin.
5. The milling machine for PIN pin processing according to claim 1, characterized in that: Both the longitudinal slide and the second vertical slide are driven by high-precision lead screws.
6. The milling machine for PIN pin processing according to claim 1, characterized in that: The machine tool is also equipped with a control box, which controls and adjusts the operating parameters of all drive motors and mechanical finger opening and closing cylinders on the machine tool.