A handle grinding head coaxial degree corrector
The coaxiality calibrator for shank grinding heads, improved by incorporating a calibrating cylinder assembly and a low-friction disc, solves the problem of existing technologies being unable to adapt to grinding heads of different sizes. It achieves efficient calibration and convenient maintenance, improving user comfort and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN RUISHI OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-29
AI Technical Summary
Existing coaxiality calibrators for shank grinding heads are not applicable to grinding tools of different sizes, and the lead screw is easily damaged, affecting user comfort and maintenance difficulty.
It employs an adjusting cylinder assembly, rubber pads, mounting brackets, winding devices, wear-resistant ropes, and compression suction cups. The grinding head is aligned by squeezing through synchronous telescopic movement. Combined with the docking of the lifting handle with the grinding head, low-friction discs and balls are used to reduce friction and ensure that the components are external for easy observation and maintenance.
It improves the convenience and accuracy of calibrating grinding heads of different sizes, reduces the frictional wear of the grinding heads, provides ample space for maintenance and operation, and enhances the practicality and comfort of the calibrator.
Smart Images

Figure CN224295578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shank grinding head technology, and in particular to a shank grinding head coaxiality correction instrument. Background Technology
[0002] Shank-mounted grinding heads are mainly used for precision grinding, polishing, and finishing. Therefore, it is necessary to ensure that the grinding head and shank are coaxial. However, general shank-mounted grinding head coaxiality calibrators cannot be applied to grinding tools of different sizes, which reduces the practicality of the calibrator. The "A Shank-mounted Grinding Head Coaxiality Calibrator" disclosed on the Chinese Patent Network, with application number "202123080151.7", is a calibrator that uses the rotation of a lead screw to synchronously support multiple support plates to open and close, thereby achieving the purpose of calibrating grinding heads of different sizes. However, this calibrator only uses the lead screw to control the synchronous movement of multiple support plates, and the threads of the lead screw are easily damaged. Furthermore, the installation position of the lead screw in this calibrator is too compact, which seriously affects the operating space for observing and maintaining the lead screw, increasing the difficulty of maintaining the calibrator and observing the wear of the lead screw, thus affecting the comfort of using the calibrator. Utility Model Content
[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a shank grinding head coaxiality calibrator, which improves the convenience of calibrating grinding heads of different sizes, improves the convenience of observing the movement of important components of the calibrator, and ensures that important components of the calibrator have sufficient maintenance and operation space.
[0004] This utility model also provides a coaxiality calibrator for a handle-type grinding head, comprising: a base plate, a mounting frame fixedly connected to the upper surface of the base plate, a winder provided at the upper end of the mounting frame, a wear-resistant rope provided inside the winder, the lower end of the wear-resistant rope passing through the mounting frame, a compression suction cup fixedly connected to the lower end of the wear-resistant rope, the suction end of the compression suction cup being in close contact with one end of the handle, a low-friction disc and an adjustment cylinder assembly provided on the upper surface of the base plate, the center point of the low-friction disc being vertically opposite to the wear-resistant rope, and a grinding head body provided inside the low-friction disc when using the calibrator, a rubber pad fixedly connected to the output end of the adjustment cylinder assembly, the rubber pad being in close contact with the side surface of the grinding head body when using the calibrator.
[0005] According to the present invention, a coaxiality calibrator for a shank-mounted grinding head is provided, wherein a support frame is fixedly connected to the upper end of the mounting frame, the upper surface of the support frame is in close contact with the lower surface of the winding device, and a wear-resistant rope runs through the support frame. This reduces the likelihood of the wear-resistant rope being obstructed and bent.
[0006] According to the present invention, a coaxiality calibrator for a shank-mounted grinding head is provided, wherein a limiting tube is fixedly connected to the surface of the mounting frame, and the lower end of the wear-resistant rope extends downward through the limiting tube towards the mounting frame. This improves the stability of the wear-resistant rope during operation.
[0007] According to the present invention, a coaxiality calibrator for a shank-type grinding head includes a low-friction disc composed of a mounting disc and multiple balls, with the lower surface of the grinding head body in contact with the side surfaces of the balls. This improves the ease of use of the low-friction disc.
[0008] According to the present invention, a coaxiality calibrator for a shank-mounted grinding head is provided, wherein the mounting disc is embedded in the upper surface of the base plate, and the ball is rotatably connected to the lower inner wall of the mounting disc. This improves the convenience of inspecting and maintaining low-friction grinding discs.
[0009] According to the present invention, a coaxiality calibrator for a shank-mounted grinding head includes an adjusting cylinder assembly consisting of four cylinders arranged in a U-shape around a low-friction disc. This improves the accuracy of the adjusting cylinder assembly during operation.
[0010] According to the present invention, a coaxiality calibrator for a shank-mounted grinding head is provided, wherein baffles are rotatably connected to the left, right, and rear surfaces of the base plate. When using the calibrator, the upper end of each baffle engages with the upper end of the mounting bracket, thereby reducing the impact of airflow on the calibration process.
[0011] Beneficial effects:
[0012] Compared with existing technologies, this shank-mounted grinding head coaxiality calibrator utilizes a positioning cylinder assembly, rubber pads, mounting brackets, a winding device, wear-resistant rope, and a compression suction cup. The cylinder assembly, with its U-shaped synchronous telescopic movement, presses and positions the grinding head, improving the convenience of calibrating grinding heads of different sizes. Furthermore, the lifting mechanism connects the handle to the grinding head, enhancing the accuracy of the handle and grinding head coaxiality calibration. The external component structure facilitates observation of component movement, enabling timely maintenance and repair of the calibrator components. The external component placement also ensures ample maintenance space for operators. The mounting disc and ball bearings reduce friction during grinding head sliding, improving the smoothness of the pressing and moving of the grinding head and reducing the risk of grinding head wear. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0014] Figure 1 This is a left view of the structure of a shank-mounted grinding head coaxiality correction instrument according to the present invention;
[0015] Figure 2 This is a right-side structural view of a coaxiality correction instrument for a shank grinding head according to the present invention;
[0016] Figure 3 This is a top view of the cross-sectional structure of a shank-mounted grinding head coaxiality correction instrument according to this utility model;
[0017] Figure 4 This is a bottom view of the cross-sectional structure of a shank-mounted grinding head coaxiality correction instrument according to this utility model.
[0018] Legend:
[0019] 1. Base plate; 2. Mounting bracket; 3. Support bracket; 4. Winder; 5. Limiting tube; 6. Adjusting cylinder assembly; 7. Rubber pad; 8. Low-friction disc; 9. Grinding head body; 10. Mounting disc; 11. Ball bearing; 12. Compression suction cup; 13. Wear-resistant rope; 14. Baffle. Detailed Implementation
[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0021] Reference Figure 1-4 This utility model discloses a coaxiality calibrator for a grinding head with a handle, comprising: a base plate 1, a mounting frame 2 fixedly connected to the upper surface of the base plate 1, and baffles 14 rotatably connected to the left, right, and rear surfaces of the base plate 1. When using the calibrator, the upper end of the baffles 14 engages with the upper end of the mounting frame 2. The baffles 14 reduce the airflow effect in the space below the mounting frame 2. A winder 4 is provided at the upper end of the mounting frame 2, and a wear-resistant rope 13 is provided inside the winder 4. The lower end of the wear-resistant rope 13 passes through the mounting frame 2, and a compression suction cup 12 is fixedly connected to the lower end of the wear-resistant rope 13. The suction end of the compression suction cup 12 is in close contact with one end of the handle. The above components work together to suspend the handle and change its height. The upper end of the mounting frame 2 is fixedly connected to the support frame 3. The upper surface of the support frame 3 is in close contact with the lower surface of the winder 4, and the support frame 3 is pierced by the wear-resistant rope 13. The support frame 3 is used to change the height of the winder 4, providing the operator with sufficient space for traction and observation of the wear-resistant rope 13 entering and exiting the winder 4. The surface of the mounting frame 2 is fixedly connected to the limiting tube 5. The lower end of the wear-resistant rope 13 passes through the limiting tube 5 and extends downwards from the mounting frame 2. The limiting tube 5 is used to limit the range of motion of the wear-resistant rope 13 and improve the stability of the wear-resistant rope 13 during operation.
[0022] Specifically, when performing coaxial calibration of the grinding head with handle, the baffle 14 is flipped open to increase the operating space for personnel to add the grinding head and handle. The closed baffle 14 reduces the airflow effect in the space below the mounting frame 2, reducing the swaying of the wear-resistant rope 13 caused by external airflow. The compression suction cup 12 uses adsorption force to integrate the handle and the wear-resistant rope 13, so as to change the handle height by winding and releasing the wear-resistant rope 13 through the winder 4. The handle in the suspended state is always aligned with the center point of the calibrator due to the influence of gravity.
[0023] The upper surface of the base plate 1 is provided with a low-friction disc 8 and an adjusting cylinder assembly 6. The center point of the low-friction disc 8 is vertically opposite to the wear-resistant rope 13. The low-friction disc 8 consists of a mounting disc 10 and multiple balls 11. The lower surface of the grinding head body 9 contacts the side surface of the balls 11. The mounting disc 10 is embedded in the upper surface of the base plate 1, and the balls 11 are rotatably connected to the lower inner wall of the mounting disc 10. The low-friction disc 8 is used to reduce the friction force experienced by the grinding head body 9 during sliding and reduce the frictional resistance experienced by the grinding head during movement. When using the calibration instrument, the low-friction disc 8... The internal structure includes a grinding head body 9, and a rubber pad 7 is fixedly connected to the output end of the adjusting cylinder group 6. When using the calibrator, the rubber pad 7 is in close contact with the side surface of the grinding head body 9. The adjusting cylinder group 6 consists of four cylinders, which are arranged in a U-shape around the low-friction disc 8. The adjusting cylinder group 6 uses the distribution structure of its own cylinders to synchronously squeeze and calibrate grinding heads of different sizes. The rubber pad 7 is used to increase the thrust effect of the adjusting cylinder group 6 and increase the friction force on the side surface of the grinding head body 9, thereby increasing the restraining effect of the adjusting cylinder group 6 on the grinding head body 9.
[0024] Specifically, when performing coaxiality calibration of the shank grinding head, the grinding head body 9 is placed inside the low-friction disc 8. Since the ball 11 is rotatable, the frictional resistance experienced by the grinding head body 9 during movement is directly reduced. Meanwhile, the four cylinders in the adjustment cylinder group 6, which are arranged in a U-shape, move synchronously, and all move towards the center point of the low-friction disc 8 and away from the center point. As the cylinder output end approaches the center point, the grinding head body 9 is subjected to thrust from four directions, resulting in a situation where it is squeezed and slides, thereby achieving the purpose of correcting the center point.
[0025] Working principle: The grinding head body 9 is placed directly inside the low-friction disc 8. The handle connected to the grinding head body 9 is then fixed by the compression suction cup 12. The wear-resistant rope 13 is then wound up to change the height of the handle, preventing it from contacting the grinding head. The adjustment cylinder group 6 is then extended. During the extension of the adjustment cylinder group 6, the output end of the cylinder contacts the grinding head body 9 and pushes the grinding head body 9. Since the cylinders move synchronously and extend towards the center point of the low-friction disc 8, the grinding head body 9 is automatically aligned. During the alignment process, the lifted handle slowly comes to a stop, facing the center point of the low-friction disc 8. After the adjustment cylinder group 6 fully clamps the grinding head body 9, the wear-resistant rope 13 is slowly released to lower the height of the handle so that it contacts the upper surface of the grinding head body 9, thus connecting the handle to the grinding head body 9.
[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A coaxiality calibrator for a shank-mounted grinding head, characterized in that, include: A base plate (1) is provided with a mounting bracket (2) fixedly connected to its upper surface. A winder (4) is provided at the upper end of the mounting bracket (2). A wear-resistant rope (13) is provided inside the winder (4). The lower end of the wear-resistant rope (13) passes through the mounting bracket (2). A compression suction cup (12) is fixedly connected to the lower end of the wear-resistant rope (13). The suction end of the compression suction cup (12) is in close contact with one end of the handle. The upper surface of the base plate (1) is provided with a low-friction disc (8) and a positioning cylinder group (6). The center point of the low-friction disc (8) and the wear-resistant rope (13) are distributed vertically opposite each other. When using the calibrator, the grinding head body (9) is provided inside the low-friction disc (8). The output end of the positioning cylinder group (6) is fixedly connected to a rubber pad (7). When using the calibrator, the rubber pad (7) is in close contact with the side surface of the grinding head body (9).
2. The coaxiality correction instrument for a shank-mounted grinding head according to claim 1, characterized in that, The upper end of the mounting frame (2) is fixedly connected to a support frame (3), the upper surface of the support frame (3) is in close contact with the lower surface of the winder (4), and the support frame (3) is pierced by a wear-resistant rope (13).
3. The coaxiality correction instrument for a shank-mounted grinding head according to claim 1, characterized in that, The surface of the mounting bracket (2) is fixedly connected to a limiting tube (5), and the lower end of the wear-resistant rope (13) extends through the limiting tube (5) and downwards from the mounting bracket (2).
4. The coaxiality correction instrument for a shank-mounted grinding head according to claim 1, characterized in that, The low-friction disc (8) consists of a mounting disc (10) and multiple balls (11), with the lower surface of the grinding head body (9) in contact with the side surface of the balls (11).
5. A coaxiality calibrator for a shank-mounted grinding head according to claim 4, characterized in that, The mounting disc (10) is embedded in the upper surface of the base plate (1), and the bead (11) is rotatably connected to the lower inner wall of the mounting disc (10).
6. The coaxiality calibrator for a shank-mounted grinding head according to claim 1, characterized in that, The adjustment cylinder group (6) consists of four cylinders, which are arranged in a U-shape around the low-friction disc (8).
7. The coaxiality calibrator for a shank-mounted grinding head according to claim 1, characterized in that, The left, right and rear surfaces of the base plate (1) are rotatably connected to baffles (14). When using the calibrator, the upper end of the baffle (14) is engaged with the upper end of the mounting bracket (2).