Outer circle grinding device for pulley machining

By designing an external grinding device for pulley processing, a motor-driven threaded rod and linkage mechanism are used to adjust the position of the support plate. Combined with an electric push rod and quick-change components, automatic positioning and grinding of pulleys are achieved, solving the problems of low efficiency and safety hazards in traditional pulley processing, improving production efficiency and safety, and ensuring processing quality.

CN224169479UActive Publication Date: 2026-04-28JIANGYIN TONGTONG MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN TONGTONG MACHINERY CO LTD
Filing Date
2025-04-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional pulley processing methods are inefficient and pose safety hazards, failing to meet the demands for efficient, safe, and high-quality production.

Method used

An external cylindrical grinding device for pulley processing was designed. It uses a motor-driven threaded rod and linkage mechanism to adjust the position of the support plate. Combined with an electric push rod and quick replacement components, it realizes automatic positioning and grinding of pulleys, supports the adaptability of pulleys of different sizes, and uses a motor-driven grinding disc for rotational grinding.

Benefits of technology

It improves production efficiency, enhances safety, ensures processing quality, simplifies the grinding process, shortens the production cycle, and supports quick replacement of grinding discs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an outer circle polishing device for pulley machining, which belongs to the technical field of polishing devices and comprises a workbench, a first motor fixedly mounted in the workbench, a threaded rod fixedly mounted at the output end of the first motor, two threaded rings in threaded connection with the threaded rod, and a plurality of first rotating blocks fixedly mounted on the threaded rings. A connecting rod is rotationally installed between every two adjacent first rotating blocks, a plurality of supporting plates are installed in the workbench in a sliding mode, rubber cushion blocks are fixedly installed on the supporting plates, and a plurality of second rotating blocks are fixedly installed on one sides of the supporting plates. Through the cooperation of a plurality of structures, the device can adapt to rollers of different sizes and models, the supporting plate is fixed through the round holes in the rollers, machining and grinding are convenient, the whole production process can be completed only through simple operation, the production period is greatly shortened, the device is simple in structure, and through the cooperation of a plurality of structures, the production efficiency is greatly improved. And different types of grinding discs are convenient to disassemble and replace.
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Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to an external cylindrical grinding device for pulley processing. Background Technology

[0002] This invention relates to an external cylindrical grinding device for pulley processing, primarily addressing the need to improve production efficiency, safety, and processing quality. With the increasing demand for mechanical parts such as pulleys, traditional manual grinding methods can no longer meet production needs. There is an urgent need for a highly efficient and automated grinding device to improve production efficiency. To ensure worker safety, a device capable of positioning and grinding pulleys using a machine is required, avoiding the safety hazards associated with manual operation. The surface of mechanical parts such as pulleys needs to be smooth and flat to meet performance requirements during use; therefore, a grinding device that ensures processing quality is needed. The background technology of this external cylindrical grinding device for pulley processing mainly aims to solve problems such as safety hazards, low automation, and dust pollution in existing technologies, meeting the market demand for efficient, safe, and high-quality grinding devices. By designing key components such as a feeding assembly, lifting assembly, clamping assembly, and tool feed assembly, the device achieves automatic feeding, positioning, grinding, and unloading of pulleys, improving production efficiency and safety while ensuring processing quality.

[0003] In the production process of pulleys, the smoothness of the outer cylindrical surface is crucial to the performance of the pulley. Traditional pulley grinding methods mostly rely on manual operation, which is not only inefficient but also poses safety hazards. When workers hold the pulley close to the grinding wheel for grinding, hand injuries are easy to occur because the pulley is small and difficult to handle. Therefore, we propose an outer cylindrical grinding device for pulley processing to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide an external grinding device for pulley processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grinding device for external cylindrical surfaces in pulley processing includes: a worktable; a motor is fixedly installed inside the worktable; a threaded rod is fixedly installed at the output end of the motor; two threaded rings are threadedly connected to the threaded rod; multiple rotating blocks are fixedly installed on the threaded rings; a connecting rod is rotatably installed between two adjacent rotating blocks; multiple support plates are slidably installed inside the worktable; rubber pads are fixedly installed on the support plates; multiple rotating blocks are fixedly installed on one side of the support plates; a connecting rod is rotatably installed between two adjacent rotating blocks; a sliding square plate is fixedly installed at the bottom end of the support plates; the sliding square plate is slidably installed inside the worktable; a support frame is fixedly installed on one side of the worktable; an electric push rod is fixedly installed on the support frame; and a quick-replacement assembly is provided at the output end of the electric push rod.

[0007] Preferably, the quick-replacement component includes: a grinding disc and an upper mounting block, the upper mounting block being fixedly mounted on the output end of an electric push rod, a lower mounting block being fixedly mounted on the top of the grinding disc, a toggle disc being rotatably mounted on the top of the lower mounting block, a limiting disc being rotatably mounted on the top of the toggle disc, a plurality of insert rods being fixedly mounted on the top of the limiting disc, a round groove matching the insert rod being opened at the bottom of the upper mounting block, a buckle being slidably mounted inside the insert rod, a spring being fixedly mounted on one side of the buckle, the spring being fixedly mounted inside the insert rod, and a limiting groove matching the buckle being opened on the inner wall of the round groove.

[0008] Preferably, the insert rod has a sliding square groove that matches the buckle, the buckle is slidably installed in the sliding square groove, the spring is fixedly installed in the sliding square groove, a round rod is fixedly installed at the bottom end of the buckle, the actuating plate has an arc-shaped hole, the round rod is slidably installed in the arc-shaped hole, and both the insert rod and the limiting plate have a moving groove that matches the round rod.

[0009] Preferably, a second motor is fixedly installed inside the lower mounting block, the output end of the second motor is fixedly connected to the top of the grinding disc, a threaded block is integrally formed on the top of the lower mounting block, the threaded block is threadedly connected to the upper mounting block, a spiral ring is fixedly installed at the bottom of the upper mounting block, the spiral ring is threadedly connected to the lower mounting block, and a mounting groove matching the second motor is opened inside the lower mounting block.

[0010] Preferably, a T-ring is fixedly installed at the bottom of the limiting disk, a sliding ring groove matching the T-ring is opened at the top of the actuating disk, a T-shaped ring is integrally formed at the bottom of the actuating disk, and a movable ring groove matching the T-shaped ring is opened at the top of the lower mounting block.

[0011] Preferably, the workbench has a sliding groove that matches the support plate, the workbench has a sliding groove that matches the sliding plate, and the workbench has a mounting slot that matches the motor.

[0012] In this utility model, the external grinding device for pulley processing is activated by starting motor one, which drives the threaded ring and linkage mechanism to move via the threaded rod, thereby adjusting the position of the support plate and rubber pad to accommodate pulleys of different sizes. Then, the electric push rod is activated to push the quick replacement component close to the pulley. Subsequently, motor two, which is fixedly installed in the lower mounting block, is activated to drive the grinding disc fixedly installed at its output end to rotate, thereby performing grinding.

[0013] In this utility model, the external cylindrical grinding device for pulley processing involves moving a rotating disc to slide a circular rod slidably mounted thereon. This causes the circular rod to slide along a latch, retracting it into the insert rod. Then, rotating the lower mounting block causes the threaded block to rotate, disengaging the threaded block from the upper mounting block and the spiral ring from the lower mounting block. This allows the insert rod to be pulled out of the insertion groove. For replacing new parts, the insert rod is inserted into the insertion groove, and the lower mounting block is rotated until the latch engages with the limiting slot under the action of a spring, enabling rapid replacement.

[0014] This utility model has a reasonable structural design. Through the cooperation of multiple structures, it can adapt to rollers of different sizes and models. The support plate is fixed through the round holes on the rollers, which facilitates processing and grinding. The entire production process can be completed with simple operations, which greatly shortens the production cycle. In addition, the device has a simple structure and the cooperation of multiple structures makes it easy to disassemble and replace different models of grinding discs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an external cylindrical grinding device for pulley processing proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of an external cylindrical grinding device for pulley processing proposed in this utility model;

[0017] Figure 3 This is a partial sectional view of the structure of an external cylindrical grinding device for pulley processing proposed in this utility model;

[0018] Figure 4 This is a partial cross-sectional view of an external cylindrical grinding device for pulley processing proposed in this utility model.

[0019] In the diagram: 1. Workbench; 2. Support frame; 3. Electric push rod; 4. Upper mounting block; 5. Lower mounting block; 6. Grinding disc; 7. Insert rod; 8. Limiting disc; 9. Actuating disc; 10. Motor 1; 11. Support plate; 12. Threaded rod; 13. Rubber pad; 14. Sliding square plate; 15. Connecting rod; 16. Threaded ring; 17. Rotating block 1; 18. Rotating block 2; 19. Motor 2; 20. T-shaped ring; 21. T-shaped ring; 22. Round rod; 23. Buckle; 24. Spring; 25. Threaded block; 26. Spiral ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A grinding device for outer diameter of pulley processing includes: a worktable 1, a motor 10 fixedly installed inside the worktable 1, a threaded rod 12 fixedly installed at the output end of the motor 10, two threaded rings 16 threadedly connected to the threaded rod 12, multiple rotating blocks 17 fixedly installed on the threaded rings 16, a connecting rod 15 rotatably installed between two adjacent rotating blocks 17, multiple support plates 11 slidably installed inside the worktable 1, rubber pads 13 fixedly installed on the support plates 11, multiple rotating blocks 2 18 fixedly installed on one side of the support plates 11, the connecting rod 15 rotatably installed between two adjacent rotating blocks 2 18, a sliding square plate 14 fixedly installed at the bottom end of the support plates 11, the sliding square plate 14 slidably installed inside the worktable 1, a support frame 2 fixedly installed on one side of the worktable 1, an electric push rod 3 fixedly installed on the support frame 2, and a quick replacement component provided at the output end of the electric push rod 3.

[0022] In this embodiment, the quick-replacement component includes: a grinding disc 6 and an upper mounting block 4. The upper mounting block 4 is fixedly mounted on the output end of the electric push rod 3. A lower mounting block 5 is fixedly mounted on the top of the grinding disc 6. A toggle disc 9 is rotatably mounted on the top of the lower mounting block 5. A limiting disc 8 is rotatably mounted on the top of the toggle disc 9. Multiple insertion rods 7 are fixedly mounted on the top of the limiting disc 8. The bottom end of the upper mounting block 4 has an insertion groove that matches the insertion rod 7. A buckle 23 is slidably mounted inside the insertion rod 7. A spring 24 is fixedly mounted on one side of the buckle 23. The spring 24 is fixedly mounted inside the insertion rod 7. A limiting groove that matches the buckle 23 is opened on the inner wall of the insertion groove to better achieve fixation.

[0023] In this embodiment, the insert rod 7 has a sliding square groove that matches the buckle 23. The buckle 23 is slidably installed in the sliding square groove, and the spring 24 is fixedly installed in the sliding square groove. A round rod 22 is fixedly installed at the bottom of the buckle 23. The actuating disk 9 has an arc-shaped hole, and the round rod 22 is slidably installed in the arc-shaped hole. Both the insert rod 7 and the limiting disk 8 have a moving groove that matches the round rod 22, thereby realizing fixing and unlocking.

[0024] In this embodiment, a second motor 19 is fixedly installed inside the lower mounting block 5. The output end of the second motor 19 is fixedly connected to the top of the grinding disc 6. A threaded block 25 is integrally formed on the top of the lower mounting block 5. The threaded block 25 is threadedly connected to the upper mounting block 4. A spiral ring 26 is fixedly installed at the bottom of the upper mounting block 4. The spiral ring 26 is threadedly connected to the lower mounting block 5. An installation groove matching the second motor 19 is opened inside the lower mounting block 5, which further increases the stability of the structure.

[0025] In this embodiment, a T-ring 21 is fixedly installed at the bottom of the limiting disk 8, and a sliding ring groove matching the T-ring 21 is opened at the top of the actuating disk 9. A T-shaped ring 20 is integrally formed at the bottom of the actuating disk 9, and a moving ring groove matching the T-shaped ring 20 is opened at the top of the lower mounting block 5, ensuring the relative position between the limiting disk and the actuating disk is stable. A sliding groove matching the support plate 11 is opened on the worktable 1, a moving groove matching the sliding square plate 14 is opened in the worktable 1, and an installation groove matching the motor 10 is opened in the worktable 1 for better installation.

[0026] In this embodiment, during use, by starting motor 10, the threaded rod 12 drives the threaded ring 16 and the linkage mechanism to move, thereby adjusting the position of the support plate 11 and the rubber pad 13 to adapt to pulleys of different sizes. Then, by starting electric push rod 3, the quick replacement component is pushed close to the pulley. Then, motor 2 19, which is fixedly installed in the lower mounting block 5, is started, so that motor 2 19 drives the grinding disc 6, which is fixedly installed at its output end, to rotate, thereby performing grinding.

[0027] After grinding, when the grinding disc needs to be replaced, the rotating disc 9 is turned to move the round rod 22 that is slidably mounted on it. The round rod 22 moves the buckle 23 to slide and retract it into the insert rod 7. Then, the lower mounting block 5 is rotated, which causes the threaded block 25 to rotate, thereby disengaging the threaded block 25 from the upper mounting block 4 and the spiral ring 26 from the lower mounting block 5. This allows the insert rod 7 to be pulled out of the insertion groove. Then, the new part is replaced by inserting the insert rod 7 into the insertion groove and rotating the lower mounting block 5 until the buckle 23 is engaged in the limiting groove under the action of the spring 24, thus achieving quick replacement.

[0028] The above provides a detailed description of the external cylindrical grinding device for pulley processing provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A grinding device for the outer diameter of pulleys, characterized in that, include: A workbench (1) is provided, in which a motor (10) is fixedly installed. A threaded rod (12) is fixedly installed at the output end of the motor (10). Two threaded rings (16) are threadedly connected to the threaded rod (12). Multiple rotating blocks (17) are fixedly installed on the threaded rings (16). A connecting rod (15) is rotatably installed between two adjacent rotating blocks (17). Multiple support plates (11) are slidably installed in the workbench (1). Rubber supports are fixedly installed on the support plates (11). A pad (13) is fixedly installed on one side of the support plate (11) with multiple rotating blocks (18). The connecting rod (15) is rotatably installed between two adjacent rotating blocks (18). A sliding square plate (14) is fixedly installed at the bottom of the support plate (11). The sliding square plate (14) is slidably installed in the workbench (1). A support frame (2) is fixedly installed on one side of the workbench (1). An electric push rod (3) is fixedly installed on the support frame (2). A quick replacement component is provided at the output end of the electric push rod (3).

2. The external grinding device for pulley processing according to claim 1, characterized in that, The quick-replacement component includes: a grinding disc (6) and an upper mounting block (4). The upper mounting block (4) is fixedly mounted on the output end of the electric push rod (3). A lower mounting block (5) is fixedly mounted on the top of the grinding disc (6). A toggle disc (9) is rotatably mounted on the top of the lower mounting block (5). A limiting disc (8) is rotatably mounted on the top of the toggle disc (9). A plurality of insert rods (7) are fixedly mounted on the top of the limiting disc (8). A round groove matching the insert rod (7) is opened at the bottom of the upper mounting block (4). A buckle (23) is slidably mounted inside the insert rod (7). A spring (24) is fixedly mounted on one side of the buckle (23). The spring (24) is fixedly mounted inside the insert rod (7). A limiting groove matching the buckle (23) is opened on the inner wall of the round groove.

3. The external grinding device for pulley processing according to claim 2, characterized in that, The insert rod (7) has a sliding square groove that matches the buckle (23). The buckle (23) is slidably installed in the sliding square groove. The spring (24) is fixedly installed in the sliding square groove. A round rod (22) is fixedly installed at the bottom of the buckle (23). The actuating disk (9) has an arc-shaped hole. The round rod (22) is slidably installed in the arc-shaped hole. The insert rod (7) and the limiting disk (8) both have a moving groove that matches the round rod (22).

4. The external grinding device for pulley processing according to claim 2, characterized in that, The lower mounting block (5) is fixedly installed with a second motor (19). The output end of the second motor (19) is fixedly connected to the top of the grinding disc (6). The top of the lower mounting block (5) is integrally formed with a threaded block (25). The threaded block (25) is threadedly connected to the upper mounting block (4). The bottom end of the upper mounting block (4) is fixedly installed with a spiral ring (26). The spiral ring (26) is threadedly connected to the lower mounting block (5). The lower mounting block (5) has an installation groove that matches the second motor (19).

5. The external cylindrical grinding device for pulley processing according to claim 2, characterized in that, The bottom end of the limiting disk (8) is fixedly installed with a T-ring (21), the top end of the actuating disk (9) is provided with a sliding ring groove that matches the T-ring (21), the bottom end of the actuating disk (9) is integrally formed with a T-shaped ring (20), and the top end of the lower mounting block (5) is provided with a moving ring groove that matches the T-shaped ring (20).

6. The external cylindrical grinding device for pulley processing according to claim 1, characterized in that, The workbench (1) has a sliding groove that matches the support plate (11), the workbench (1) has a sliding groove that matches the sliding square plate (14), and the workbench (1) has a mounting groove that matches the motor (10).