Automatic knurling machine for metal parts

Abstract

The utility model relates to knurling machine technical field especially, relates to a metal part automatic knurling machine. The utility model provides a metal part automatic knurling machine, including frame, mounting panel, fixed plate and moving block etc.

Description

Technical Field

[0001] This utility model relates to the field of knurling machine technology, and in particular to an automatic knurling machine for metal parts. Background Technology

[0002] A knurling machine is a specialized mechanical device used to process specific textures or patterns on the surface of metal (or other malleable materials) parts.

[0003] In traditional automatic knurling machines, the feeding mechanism (such as a pusher cylinder or a feeding motor) usually needs to be equipped with an independent power source and control unit. This not only increases the manufacturing cost and structural complexity of the equipment, but also requires additional space for installation. More importantly, the independently driven feeding action and the processing action of the knurling spindle must be precisely synchronized through an electronic control system (such as a PLC). Once there is a delay in the control program or a deviation in the sensor signal, it is very easy for the feeding pusher to push the part before the knurling die has fully retracted, causing the part to be squeezed and damaged, or the pusher to mechanically interfere with the die and damage the equipment.

[0004] To address the issues raised above, there is a need to provide an automatic knurling machine for metal parts. Utility Model Content

[0005] To overcome the drawbacks of typically requiring an independent power source and control unit, which greatly increases cost and complexity, this invention provides an automatic knurling machine for metal parts.

[0006] The technical solution of this utility model: An automatic knurling machine for metal parts includes a frame, a mounting plate, a fixed plate, a movable block, knurling teeth, a positioning plate, a mounting bracket, a rotating ring, a motor, a connecting rod, a rotating shaft, a connecting plate, a striking rod, a limit frame, a sliding rod, a positioning block, a spring, a feeder, and a conveying pipe. The mounting plate is mounted on the frame, and a fixed plate is mounted on the mounting plate. A movable block is slidably connected to the mounting plate. Both the fixed plate and the movable block are provided with knurling teeth. A positioning plate is provided on the right side of the movable block. A mounting bracket is mounted on the rear side of the frame, and the right side of the mounting bracket is rotatably connected to... A rotating ring is connected to the mounting frame. A motor is installed on the left side of the mounting frame, and the motor output shaft passes through the mounting frame and is connected to the rotating ring. A connecting rod is rotatably connected to the right side of the rotating ring, and the other end of the connecting rod is rotatably engaged with a moving block. A rotating shaft is rotatably connected to the mounting plate. A connecting plate is provided on the left side of the rotating shaft, and a striking rod is provided on the right side of the rotating shaft. A limit frame is provided on the top of the fixed plate, and a sliding rod is slidably connected to the limit frame. A positioning block is provided on the sliding rod, and a spring is provided between the positioning block and the limit frame. A feeding machine is installed on the left side of the frame, and a conveying pipe is connected to the feeding machine. The other end of the conveying pipe is connected to the positioning block.

[0007] To further explain, it also includes guide plates and a first sponge pad. Guide plates are symmetrically connected on the left and right sides inside the frame, and a first sponge pad is provided inside the frame.

[0008] To further explain, it also includes a second sponge pad, with a second sponge pad provided on the inner side of both guide plates.

[0009] To further explain, the positioning block has a through slot inside that matches the size of the part.

[0010] To further explain, the limiting frame has a through groove that matches the size of the part.

[0011] To further explain, the frame has multiple mounting holes symmetrically arranged on both sides.

[0012] The beneficial effects of this utility model are as follows: By mechanically linking the movement of the feeding mechanism with the knurling drive mechanism, the mechanical action of the moving block retracting drives the connecting plate, rotating shaft, and striking rod, thereby driving the positioning block to move and push the parts. This makes the feeding action naturally synchronized with the knurling processing cycle and strictly interlocked, completely avoiding faults such as part squeezing and equipment interference caused by electrical control timing delays or signal deviations, and greatly improving the safety and reliability of equipment operation. At the same time, this design eliminates the need for a separate feeding drive cylinder or motor and its matching control system, effectively simplifying the overall structure, reducing manufacturing costs and maintenance difficulty, and saving installation space. Furthermore, the pushing structure of the positioning block and the limit frame, combined with the precise positioning of the through slot alignment, ensures that the parts can accurately fall into the processing station, improving processing accuracy. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the mounting bracket, rotating ring, motor, and other components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the mounting plate, fixing plate, and connecting rod of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the movable block, knurled teeth, and positioning plate of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, such as the rotating shaft, connecting plate, and striking rod.

[0018] Figure 6 This is a three-dimensional structural diagram of the guide plate, the first sponge pad, and the second sponge pad of this utility model.

[0019] The markings in the attached diagram are as follows: 1: frame, 2: mounting plate, 3: fixed plate, 4: moving block, 5: knurled teeth, 6: positioning plate, 7: mounting bracket, 8: rotating ring, 9: motor, 10: connecting rod, 11: rotating shaft, 12: connecting plate, 13: striking rod, 14: limit frame, 15: sliding rod, 16: positioning block, 17: spring, 18: feeder, 19: conveying pipe, 20: guide plate, 21: first sponge pad, 22: second sponge pad. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0021] Example: An automatic knurling machine for metal parts, such as Figures 1-6As shown, the assembly includes a frame 1, mounting plate 2, fixing plate 3, moving block 4, knurled teeth 5, positioning plate 6, mounting bracket 7, rotating ring 8, motor 9, connecting rod 10, rotating shaft 11, connecting plate 12, striking rod 13, limit frame 14, sliding rod 15, positioning block 16, spring 17, feeder 18, conveying pipe 19, guide plate 20, first sponge pad 21, and second sponge pad 22. The frame 1 has multiple symmetrical mounting holes on its left and right sides. The mounting plate 2 is mounted on the frame 1, and the mounting plate 2 has a fixing plate 3. The moving block 4 is slidably connected to the mounting plate 2 and can reciprocate linearly under the drive of the connecting rod 10. The knurled teeth on the moving block 4... The tooth 5 engages with the knurled teeth 5 on the fixed plate 3, clamping (processing) and releasing (unloading) the part by moving closer and further away. Both the fixed plate 3 and the moving block 4 are provided with knurled teeth 5, which are the working surfaces that directly contact the surface of the metal part and are used for extrusion molding. The specific grooves (such as diamonds and straight lines) on their surfaces determine the final knurled texture formed on the part. A positioning plate 6 is provided on the right side of the moving block 4. A mounting bracket 7 is installed on the rear side of the frame 1. A rotating ring 8 is rotatably connected to the right side of the mounting bracket 7. A motor 9 is installed on the left side of the mounting bracket 7. The output shaft of the motor 9 passes through the mounting bracket 7 and is connected to the rotating ring 8. The right side of the rotating ring 8... A connecting rod 10 is rotatably connected to the mounting plate 2, and the other end of the connecting rod 10 is rotatably engaged with the moving block 4. A rotating shaft 11 is rotatably connected to the mounting plate 2. A connecting plate 12 is provided on the left side of the rotating shaft 11, and a striking rod 13 is provided on the right side of the rotating shaft 11. A limiting frame 14 is provided on the top of the fixing plate 3. A through groove with the same size as the part is opened on the limiting frame 14. A sliding rod 15 is slidably connected to the limiting frame 14. A positioning block 16 is provided on the sliding rod 15. A through groove with the same size as the part is opened inside the positioning block 16. It is used to receive the part falling from the conveying pipe 19, perform preliminary positioning, and send the part to the upper part of the processing station after being pushed. It is a material loading and positioning device. The core component, the positioning block 16, is provided with a spring 17 between the positioning block 16 and the limiting frame 14. The feeder 18 is installed on the left side of the frame 1. Its function is to automatically sort and orient the randomly poured metal parts through vibration, and then output them one by one in an orderly manner, providing a continuous and uniform flow of parts for automated processing. The feeder 18 is connected to a conveying pipe 19, and the other end of the conveying pipe 19 is connected to the positioning block 16. The frame 1 is symmetrically connected with guide plates 20 on the left and right sides to guide the finished parts that fall from the knurling mold. The frame 1 is provided with a first sponge pad 21, and the inner sides of the two guide plates 20 are provided with a second sponge pad 22.

[0022] When using this device, the operator first pours the metal parts to be processed into the feeder 18 (such as a vibratory feeder), and then starts the feeder 18. The feeder 18 automatically sorts and orients the messy parts through vibration, ensuring that all parts are output in a uniform posture. The parts are transported one by one to the processing area through the conveyor pipe 19. The end of the conveyor pipe 19 is connected to the positioning block 16. The parts fall into the through groove opened inside the positioning block 16, which matches the outer diameter of the parts, to achieve initial positioning and temporary storage. At this time, the motor 9 starts, and its output shaft drives the rotating ring 8 on the mounting frame 7 to rotate. The rotating ring 8 converts the circular motion into the linear reciprocating motion of the moving block 4 through the connecting rod 10. The moving block 4 slides smoothly along the guide rail on the mounting plate 2, thereby driving the knurled teeth 5 on it to approach or move away from the knurled teeth 5 on the fixed plate 3, realizing the clamping and releasing of the parts. During the process of the moving block 4 being pulled backward (retracted) by the connecting rod 10, its right side surface The positioning plate 6 contacts the connecting plate 12 and applies a pushing force. This pushing force is transmitted to the rotating shaft 11 through the connecting plate 12, causing the rotating shaft 11 to rotate around its axis. This, in turn, causes the striking rod 13 at its right end to swing synchronously. The swinging striking rod 13 impacts the sliding rod 15, compressing the spring 17. This drives the sliding rod 15 to move the positioning block 16 and its internal metal parts forward. When the positioning block 16 moves to the front end, its internal through groove aligns with the through groove on the limiting frame 14. At this time, the positioning block 16 loses its support, and its internal metal parts pass through the aligned through groove under the action of gravity, accurately falling into the processing station between the moving block 4 and the fixed plate 3, and are supported and positioned by the positioning plate 6. Subsequently, the moving block 4 is driven forward by the connecting rod 10, the connecting plate 12 is released from the pressure of the positioning plate 6, the spring 17 releases its elastic energy, and pushes the sliding rod 15 to reset the positioning block 16. Its through groove is re-aligned with the outlet of the conveying pipe 19, waiting to receive the next part. As the moving block 4 continues to move forward, the knurled teeth 5 on it close with the knurled teeth 5 on the fixed plate 3, tightly clamping the metal parts that fall into the workstation. The strong extrusion force causes the mold teeth to be cold-pressed on the surface of the parts, thereby forming a uniform and clear knurled texture. After the knurling is completed, the motor 9 continues to run. When the rotating ring 8 drives the moving block 4 to the frontmost side through the connecting rod 10, the two knurled teeth 5 separate. The processed parts fall freely from the mold gap under the action of gravity and are guided by the guide plates 20 symmetrically arranged on the left and right inside the frame 1 to avoid deviation. Finally, they fall on the first sponge pad 21 at the bottom of the frame 1, achieving buffering, anti-collision and noise reduction.

[0023] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. An automatic knurling machine for metal parts, characterized in that: The machine includes a frame (1), mounting plate (2), fixing plate (3), moving block (4), knurled teeth (5), positioning plate (6), mounting bracket (7), rotating ring (8), motor (9), connecting rod (10), rotating shaft (11), connecting plate (12), striking rod (13), limit frame (14), sliding rod (15), positioning block (16), spring (17), feeder (18), and conveying pipe (19). The mounting plate (2) is installed on the rear top of the frame (1). The fixing plate (3) is fixedly connected to the middle of the top surface of the mounting plate (2). The moving block (4) is slidably connected to the top of the mounting plate (2). Knurled teeth (5) are provided on the opposite side of the fixing plate (3) and the moving block (4). The positioning plate (6) is fixedly connected to the front right side of the moving block (4). The mounting bracket (7) is installed on the rear side of the frame (1). The rotating ring (8) is rotatably connected to the right side of the mounting bracket (7). A motor (9) is installed on the left side of the mounting frame (7). The output shaft of the motor (9) passes through the mounting frame (7) and is fixedly connected to the rotating ring (8). A connecting rod (10) is rotatably connected to the right side of the rotating ring (8). The other end of the connecting rod (10) is rotatably engaged with the moving block (4). A rotating shaft (11) is rotatably connected to the mounting plate (2). A connecting plate (12) is provided on the left side of the rotating shaft (11). A striking rod (13) is provided on the right side of the rotating shaft (11). A limiting frame (14) is provided on the top of the fixed plate (3). A sliding rod (15) is slidably connected to the limiting frame (14). A positioning block (16) is fixedly connected to the front end of the sliding rod (15). A spring (17) is provided between the positioning block (16) and the limiting frame (14). A feeding machine (18) is installed on the left side of the frame (1). A conveying pipe (19) is connected to the feeding machine (18). The other end of the conveying pipe (19) is connected to the positioning block (16).

2. An automatic knurling machine for metal parts according to claim 1, characterized in that: It also includes a guide plate (20) and a first sponge pad (21). The guide plate (20) is fixedly connected symmetrically to the bottom of the frame (1), and the first sponge pad (21) is provided at the bottom of the frame (1).

3. An automatic knurling machine for metal parts according to claim 2, characterized in that: It also includes a second sponge pad (22), and the two guide plates (20) are provided with a second sponge pad (22) on the opposite side.

4. An automatic knurling machine for metal parts according to claim 3, characterized in that: The positioning block (16) has a through groove inside that matches the size of the part.

5. An automatic knurling machine for metal parts according to claim 4, characterized in that: The limiting frame (14) has a through groove that matches the size of the part.

6. An automatic knurling machine for metal parts according to claim 5, characterized in that: Multiple mounting holes are symmetrically provided on the left and right sides of the frame (1).

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