Wrench profiling uniform grinding device
By designing a wrench-contour uniform grinding device that includes a grinding motor, belt drive mechanism, and pressure sensor, the problem that existing devices cannot adapt to the clamping and rotation of wrenches of different lengths has been solved. This enables uniform grinding and precise observation of wrenches, improving processing accuracy and efficiency.
Patent Information
- Application Number
- CN202520515451.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing wrench-contact uniform grinding devices cannot adapt to the clamping and rotation of wrenches of different lengths, cannot adjust the tension of the grinding wheel, and are not convenient for observing the origin position.
A device was designed that includes a grinding motor, a belt drive mechanism, a fixed plate, a hydraulic cylinder, a rotating shaft, and a pressure sensor. The belt drive mechanism drives the grinding wheel to rotate, the hydraulic cylinder adjusts the tightness of the grinding wheel, the pressure sensor controls the grinding force, and the rotating motor drives the wrench to rotate and the moving motor positions and observes the origin.
It enables uniform grinding of wrenches of different lengths, adapts to various processing needs, ensures stable grinding force, facilitates observation of the origin position, and improves the processing accuracy and efficiency of wrenches.
Smart Images

Figure CN223863498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware tool technology, and in particular to a wrench contour uniform grinding device. Background Technology
[0002] In the field of modern industrial manufacturing and repair, the processing and repair of wrenches is a crucial process. As a commonly used tool, the smoothness, precision, and durability of the wrench's surface directly affect its performance and lifespan.
[0003] The existing technology has the following shortcomings: When using the existing wrench contour uniform grinding device, it is often unable to clamp and grind wrenches of different lengths, and it is not convenient to drive the wrench to rotate after clamping. It cannot adapt to different processing needs, and it is inconvenient to observe the position of the origin during processing. At the same time, it is not possible to adjust the tension of the grinding wheel. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wrench-shaped uniform grinding device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wrench-shaped uniform grinding device, comprising an outer shell, a grinding motor disposed inside the outer shell, the grinding motor being connected to a belt drive mechanism, a drive wheel being connected to the upper end of the belt drive mechanism, a grinding wheel being connected to the outer ring of the drive wheel, a fixing plate being connected inside the outer shell, a hydraulic cylinder being connected to one side of the fixing plate, a connecting rod being connected to one end of the hydraulic cylinder, a rotating shaft being connected to the other end of the connecting rod, a connecting shaft being connected to the upper end of the rotating shaft, a driven wheel being connected to one end of the connecting shaft, and the grinding wheel being connected to the driven wheel.
[0006] As a further description of the above technical solution:
[0007] The grinding motor is fixed inside the outer casing, and the output end of the grinding motor is connected to a belt drive mechanism. The drive wheel is connected to the belt drive mechanism via a rotating shaft, and the grinding wheel is located on the outside of the drive wheel.
[0008] As a further description of the above technical solution:
[0009] The fixing plate is fixed inside the outer shell, one end of the oil cylinder is connected to one side of the fixing plate, and one end of the connecting rod is connected to the end of the oil cylinder away from the fixing plate.
[0010] As a further description of the above technical solution:
[0011] The lower end of the rotating shaft is fixed to the end of the connecting rod away from the oil cylinder, and one end of the connecting shaft is fixed to the end of the rotating shaft away from the connecting rod. The driven wheel is rotatably connected to the rotating shaft provided on the connecting shaft.
[0012] As a further description of the above technical solution:
[0013] The outer casing has a first external plate inside, and a fixed frame is connected to a slide rail inside the outer casing. A second external plate is connected to one side of the fixed frame. A moving motor is provided in the middle of the fixed frame. A drive gear is connected to the lower end of the moving motor. A first rack is meshed on one side of the drive gear. The first rack is fixed to the inside of the outer casing.
[0014] As a further description of the above technical solution:
[0015] The outer casing is equipped with a drive spring, and a pressure sensor is provided on one side of the drive spring. The pressure sensor is connected to a bracket provided on the lower side of the rotary motor. A second rack is provided on one side of the pressure sensor. The second rack is fixed to the bracket. The second rack is moved by the rotation of the motor drive gear.
[0016] As a further description of the above technical solution:
[0017] The upper end of the rotary motor is connected to a rotating sleeve, the upper end of the rotating sleeve is connected to a placement column, a grinding wrench is sleeved on the placement column, a guide column is fixedly connected to one side of the rotating sleeve, a sliding block is slidably connected to the guide column, a fixing pin is fixedly connected to the upper end of the sliding block, and the grinding wrench is sleeved on the fixing pin.
[0018] This utility model has the following beneficial effects:
[0019] 1. In this utility model, the motor drives the rack to move along the Y-axis, which in turn drives the spring to compress the pressure sensor. The pressure sensor drives the entire worktable to move along the Y-axis. During the compression process, the pressure sensor always maintains a compression force of 50 to 60 kg. When the wrench contacts the grinding head, if the contact surface is too far from the grinding head, the spring pressure is too small, and the pressure sensor is below 50 kg, then the Y-axis motor drives the rack to move in the opposite direction along the Y-axis, causing the spring to compress the pressure sensor. Conversely, the Y-axis motor drives the rack to move along the Y-axis, ensuring that the pressure sensor is within a fixed pressure range, thereby making the wrench grind more evenly.
[0020] 2. In this utility model, the wrench can be rotated 360 degrees to adapt to different processing needs, and wrenches of different lengths can be clamped to grind wrenches of different sizes. The first and second outer plates can be used for auxiliary positioning to facilitate observation of the position of the origin. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of a wrench-shaped uniform grinding device proposed in this utility model;
[0022] Figure 2 A partial structural diagram of a wrench-shaped uniform grinding device proposed in this utility model. Figure 1 ;
[0023] Figure 3 A partial structural diagram of a wrench-shaped uniform grinding device proposed in this utility model. Figure 2 ;
[0024] Figure 4 This is a partial exploded view of the structure of a wrench-shaped uniform grinding device proposed in this utility model;
[0025] Figure 5 A partial structural diagram of a wrench-shaped uniform grinding device proposed in this utility model. Figure 3 ;
[0026] Figure 6 A partial structural diagram of a wrench-shaped uniform grinding device proposed in this utility model. Figure 4 .
[0027] Legend:
[0028] 1. Outer casing; 2. Grinding motor; 3. Belt drive mechanism; 4. Drive wheel; 5. Grinding wheel; 6. Fixing plate; 7. Hydraulic cylinder; 8. Connecting rod; 9. Rotating shaft; 10. Connecting shaft; 11. Driven wheel; 12. First outer plate; 13. Fixing frame; 14. Second outer plate; 15. Moving motor; 16. Drive gear; 17. First rack; 18. Drive spring; 19. Pressure sensor; 20. Second rack; 21. Rotary motor; 22. Rotating sleeve; 23. Placement column; 24. Grinding wrench; 25. Sliding block; 26. Fixing pin; 27. Guide column. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Reference Figures 1-6This utility model provides an embodiment of a wrench-shaped uniform grinding device, comprising a housing 1, a grinding motor 2 inside the housing 1, a belt drive mechanism 3 connected to the grinding motor 2, a drive wheel 4 connected to the upper end of the belt drive mechanism 3, a grinding wheel 5 connected to the outer ring of the drive wheel 4, a fixing plate 6 connected inside the housing 1, a hydraulic cylinder 7 connected to one side of the fixing plate 6, a connecting rod 8 connected to one end of the hydraulic cylinder 7, a rotating shaft 9 connected to the other end of the connecting rod 8, a connecting shaft 10 connected to the upper end of the rotating shaft 9, a driven wheel 11 connected to one end of the connecting shaft 10, and the grinding wheel 5 connected to the driven wheel 11. On wheel 11, a grinding motor 2 is fixed inside the outer casing 1. The output end of the grinding motor 2 is connected to a belt drive mechanism 3. The driving wheel 4 is connected to the belt drive mechanism 3 via a rotating shaft. The grinding wheel 5 is located on the outside of the driving wheel 4. A fixed plate 6 is fixed inside the outer casing 1. One end of the hydraulic cylinder 7 is connected to one side of the fixed plate 6. One end of the connecting rod 8 is connected to the end of the hydraulic cylinder 7 away from the fixed plate 6. The lower end of the rotating shaft 9 is fixed to the end of the connecting rod 8 away from the hydraulic cylinder 7. One end of the connecting shaft 10 is fixed to the end of the rotating shaft 9 away from the connecting rod 8. The driven wheel 11 rotates... A first external plate 12 is provided inside the outer casing 1, which is connected to a rotating shaft on the connecting shaft 10. A fixed frame 13 is connected to a slide rail inside the outer casing 1. A second external plate 14 is connected to one side of the fixed frame 13. A moving motor 15 is provided in the middle of the fixed frame 13. A drive gear 16 is connected to the lower end of the moving motor 15. A first rack 17 is meshed on one side of the drive gear 16. The first rack 17 is fixed inside the outer casing 1. A drive spring 18 is provided inside the outer casing 1. A pressure sensor 19 is provided on one side of the drive spring 18. The pressure sensor 19 is connected to the rotating motor. On the bracket provided on the lower side of the machine 21, a second rack 20 is provided on one side of the pressure sensor 19. The second rack 20 is fixed to the bracket. The second rack 20 is driven to move by the rotation of the motor drive gear. A rotating sleeve 22 is connected to the upper end of the rotating motor 21. A placement column 23 is connected to the upper end of the rotating sleeve 22. A grinding wrench 24 is sleeved on the placement column 23. A guide column 27 is fixed to one side of the rotating sleeve 22. A sliding block 25 is slidably connected to the guide column 27. A fixing pin 26 is fixed to the upper end of the sliding block 25. The grinding wrench 24 is sleeved on the fixing pin 26.
[0031] Working principle: The grinding motor 2 is fixed inside the outer casing 1. After starting, it outputs power, which drives the drive wheel 4 to rotate through the belt drive mechanism 3. The drive wheel 4 then drives the outer grinding wheel 5 to rotate at high speed, providing power for the wrench grinding. The wrench placed on the placement column 23 and the fixing pin 26 is ground. Then, if it is necessary to adjust the tightness of the grinding wheel 5, the hydraulic cylinder 7 is started. The hydraulic cylinder 7 drives one end of the connecting rod 8 to move, thereby driving the rotating shaft 9 to rotate. The rotation of the rotating shaft 9 drives the connecting shaft 10 to move, thereby driving the driven wheel 11 to move, so that the tightness of the grinding wheel 5 can be adjusted. The outer casing 1 is provided with a slide rail. The fixing frame 13 is connected to the slide rail. The moving motor 15 is installed in the middle of the fixing frame 13. Its lower end is connected to the drive gear 16. The drive gear 16 meshes with the first rack 17 fixed inside the outer casing 1. When the moving motor 15 starts, it drives the main... The rotating gear 16 rotates, thereby driving the fixed frame 13 to move laterally along the slide rail. The first external plate 12 and the second external plate 14 can be used for auxiliary positioning, so as to facilitate the observation of the position of the origin. The drive spring 18 and the pressure sensor 19 are set inside the outer shell 1. The pressure sensor 19 is connected to the bracket on the lower side of the rotary motor 21. The second rack 20 is fixed on the bracket. The position of the rotary motor 21 is adjusted by the rotation of the gear driven by the motor. The grinding pressure is controlled by the drive spring 18 and the pressure sensor 19. Then, the rotary motor 21 is started. The rotary motor 21 drives the rotating sleeve 22 to rotate, thereby driving the guide column 27 to rotate. Then, the fixed pin 26 drives the grinding wrench 24 placed above to rotate, adapting to different processing needs. The sliding block 25 can slide on the guide column 27, so as to adapt to different wrenches for grinding.
[0032] 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 wrench-shaped uniform grinding device, comprising a housing (1), characterized in that: The outer shell (1) is equipped with a grinding motor (2), which is connected to a belt drive mechanism (3). The upper end of the belt drive mechanism (3) is connected to a drive wheel (4), and the outer ring of the drive wheel (4) is connected to a grinding wheel (5). The outer shell (1) is connected to a fixing plate (6), and a hydraulic cylinder (7) is connected to one side of the fixing plate (6). One end of the hydraulic cylinder (7) is connected to a connecting rod (8), and the other end of the connecting rod (8) is connected to a rotating shaft (9). The upper end of the rotating shaft (9) is connected to a connecting shaft (10), and one end of the connecting shaft (10) is connected to a driven wheel (11). The grinding wheel (5) is connected to the driven wheel (11).
2. The wrench-shaped uniform grinding device according to claim 1, characterized in that: The grinding motor (2) is fixed inside the outer shell (1). The output end of the grinding motor (2) is connected to the belt drive mechanism (3). The drive wheel (4) is connected to the belt drive mechanism (3) through a rotating shaft. The grinding wheel (5) is located on the outside of the drive wheel (4).
3. The wrench-shaped uniform grinding device according to claim 2, characterized in that: The fixing plate (6) is fixed inside the outer shell (1), one end of the oil cylinder (7) is connected to one side of the fixing plate (6), and one end of the connecting rod (8) is connected to the end of the oil cylinder (7) away from the fixing plate (6).
4. The wrench-shaped uniform grinding device according to claim 3, characterized in that: The lower end of the rotating shaft (9) is fixed to the end of the connecting rod (8) away from the oil cylinder (7), and one end of the connecting shaft (10) is fixed to the end of the rotating shaft (9) away from the connecting rod (8). The driven wheel (11) is rotatably connected to the rotating shaft provided on the connecting shaft (10).
5. The wrench-shaped uniform grinding device according to claim 4, characterized in that: The outer shell (1) is provided with a first external plate (12) inside. A fixed frame (13) is connected to a slide rail provided inside the outer shell (1). A second external plate (14) is connected to one side of the fixed frame (13). A moving motor (15) is provided in the middle of the fixed frame (13). A drive gear (16) is connected to the lower end of the moving motor (15). A first rack (17) meshes with one side of the drive gear (16). The first rack (17) is fixed to the inside of the outer shell (1).
6. The wrench-shaped uniform grinding device according to claim 5, characterized in that: The outer casing (1) is provided with a drive spring (18) inside. A pressure sensor (19) is provided on one side of the drive spring (18). The pressure sensor (19) is connected to a bracket provided on the lower side of the rotary motor (21). A second rack (20) is provided on one side of the pressure sensor (19). The second rack (20) is fixed to the bracket. The second rack (20) is driven to move by the rotation of the motor drive gear.
7. The wrench-shaped uniform grinding device according to claim 6, characterized in that: The upper end of the rotary motor (21) is connected to a rotating sleeve (22), the upper end of the rotating sleeve (22) is connected to a placement column (23), a grinding wrench (24) is sleeved on the placement column (23), a guide column (27) is fixedly connected to one side of the rotating sleeve (22), a sliding block (25) is slidably connected to the guide column (27), a fixing pin (26) is fixedly connected to the upper end of the sliding block (25), and the grinding wrench (24) is sleeved on the fixing pin (26).