A clamp for grinding wheel polishing

By designing a grinding wheel fixture with a worm gear adjustment mechanism and a dial, the problem of cumbersome workpiece position adjustment was solved, and the workpiece was stably clamped and the angle was quickly adjusted, thus improving the safety and efficiency of the grinding process.

CN224310367UActive Publication Date: 2026-06-02ZHUHAI CHENGHUI MASCH & MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI CHENGHUI MASCH & MOULD CO LTD
Filing Date
2025-05-15
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the existing grinding process, the workpiece is cumbersome to adjust and fix in position, which leads to inconvenience and safety hazards.

Method used

A fixture comprising a housing, a rotating shaft, an upper clamping block, a lower clamping block, a push rod, a double-headed cylinder, and an adjustment mechanism is designed. The workpiece is fixed by the double-headed cylinder, the workpiece angle is adjusted by the worm gear mechanism, and a dial indicator is provided to achieve rapid workpiece positioning and angle adjustment.

Benefits of technology

It achieves stable workpiece clamping and rapid angle adjustment, improving the stability and ease of operation of grinding operations and reducing safety risks.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224310367U_ABST
    Figure CN224310367U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of machining, especially a clamp for grinding wheel polishing, including casing, connecting block, rotation axis, upper clamping block, lower clamping block etc.
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Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a fixture for grinding wheels. Background Technology

[0002] Fixtures are key tools to ensure a stable, safe, and efficient grinding process. They vary in type and design depending on the workpiece shape, material, and processing requirements. Their main function is to precisely fix and position the workpiece during grinding, ensuring that the workpiece is in a stable and accurate position to meet the processing needs of various materials and workpieces.

[0003] When grinding a workpiece, the operator usually holds the workpiece and brings it close to the grinding wheel to perform the grinding operation. This method is prone to accidents that can cause hand injuries. Therefore, the operator will first fix the workpiece on the fixture before grinding. However, if the grinding position needs to be changed during the grinding process, the workpiece needs to be removed from the fixture, and then the position of the workpiece needs to be adjusted and fixed again, which is a rather troublesome operation. Utility Model Content

[0004] In order to overcome the technical problems existing in the prior art, this utility model provides a fixture for grinding with a grinding wheel that facilitates adjustment of the workpiece angle.

[0005] The technical solution of this utility model is as follows: a jig for grinding wheels, including a housing, a connecting block, a rotating shaft, an upper clamping block, a lower clamping block, a push rod, a double-headed cylinder, and an adjustment mechanism. The rotating shaft is rotatably connected to the bottom of the housing, and the bottom end of the rotating shaft is connected to the connecting block. Two upper clamping blocks are symmetrically fixedly connected to the bottom of the connecting block. A double-headed cylinder is fixedly connected to the right side of the two upper clamping blocks. The bottom ends of the two telescopic rods of the double-headed cylinder are fixedly connected to the lower clamping block. The upper and lower clamping blocks are symmetrically arranged vertically. A push rod is fixedly connected to the bottom of the upper clamping block and the top of the lower clamping block. The housing is provided with an adjustment mechanism for adjusting the rotation angle of the connecting block.

[0006] In one embodiment, the adjustment mechanism includes a rotary handle, a worm gear, a worm wheel, and a dial. The rotary handle is rotatably connected to the left side of the housing, and the worm gear is fixedly connected to the right end of the rotary handle. The worm gear is rotatably connected to the housing. The worm wheel is fixedly connected to the middle of the rotating shaft, and the worm gear meshes with the worm wheel. The dial is fixedly connected to the housing, and the middle of the dial is rotatably connected to the rotating shaft. A pointer is rotatably provided in the middle of the dial, and the top of the rotating shaft is fixedly connected to the pointer in the middle of the dial.

[0007] In one embodiment, a handle is also included, which is fixedly attached to the rear top of the housing.

[0008] In one embodiment, an anti-slip sleeve is also included, which is fixedly attached to the handle.

[0009] In one embodiment, a baffle is also included, with the rear side of the upper clamping block rotatably connected to the baffle.

[0010] In one embodiment, a foot pad is also included, with the foot pad fixedly connected to the bottom of the lower clamping block.

[0011] The beneficial effects are: the lower clamping block and the push rod are moved by the telescopic rod of the double-headed cylinder, the lower clamping block cooperates with the upper clamping block, the push rod contacts the surface of the workpiece, and the upper and lower push rods cooperate to firmly fix the workpiece as a whole, thereby firmly fixing the workpiece as a whole, effectively resisting the impact force of the grinding wheel, the vibration of the workpiece itself and other external forces during grinding, preventing the workpiece from shifting or shaking, and ensuring the stability of the grinding operation.

[0012] The worm gear drives the worm wheel to rotate, which in turn drives the connecting block to rotate through the rotating shaft, thereby causing the workpiece to rotate at an angle. At the same time, the rotation of the rotating shaft causes the pointer on the dial to rotate. By observing the direction of the pointer's rotation and the scale on the dial, the user can quickly determine the grinding angle of the workpiece. Attached Figure Description

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

[0014] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention.

[0015] Figure 3 This is a three-dimensional structural diagram of the rotating shaft, worm gear, and worm wheel of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the upper clamping block, lower clamping block, and double-headed cylinder of this utility model.

[0017] The markings in the diagram are as follows: 1-House, 2-Connecting block, 201-Rotating shaft, 3-Upper clamping block, 301-Lower clamping block, 4-Top rod, 5-Double-headed cylinder, 6-Rotating handle, 7-Worm gear, 8-Worm wheel, 9-Digital dial, 10-Handle, 11-Anti-slip sleeve, 12-Baffle, 13-Foot pad. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0019] Example: A jig for grinding wheels, such as Figure 1-4As shown, the device includes a housing 1, a connecting block 2, a rotating shaft 201, an upper clamping block 3, a lower clamping block 301, a push rod 4, a double-headed cylinder 5, a rotating handle 6, a worm gear 7, a worm wheel 8, and a dial 9. The rotating shaft 201 is rotatably connected to the bottom of the housing 1. The bottom end of the rotating shaft 201 is connected to the connecting block 2. Two upper clamping blocks 3 are symmetrically fixedly connected to the bottom of the connecting block 2. A double-headed cylinder 5 is fixedly connected to the right side of both upper clamping blocks 3. The bottom ends of the two telescopic rods of the double-headed cylinder 5 are fixedly connected to the lower clamping blocks 301. The upper clamping blocks 3 and the lower clamping blocks 301... The upper and lower clamping blocks 301 are symmetrically arranged. The bottom of the upper clamping block 3 and the top of the lower clamping block 301 are both fixedly connected to the top rod 4. The left side of the housing 1 is rotatably connected to the rotating handle 6. The right end of the rotating handle 6 is fixedly connected to the worm gear 7. The worm gear 7 is rotatably connected to the housing 1. The upper middle part of the rotating shaft 201 is fixedly connected to the worm wheel 8. The worm gear 7 and the worm wheel 8 mesh. The housing 1 is fixedly connected to the scale 9. The middle part of the scale 9 is rotatably connected to the rotating shaft 201. The middle part of the scale 9 is equipped with a pointer. The top of the rotating shaft 201 is fixedly connected to the pointer in the middle of the scale 9.

[0020] like Figure 1-3 As shown, it also includes a handle 10, which is fixedly connected to the rear top of the housing 1.

[0021] like Figure 1-3 As shown, it also includes an anti-slip sleeve 11, which is fixedly connected to the handle 10.

[0022] like Figure 1-3 As shown, it also includes a baffle 12, which is rotatably connected to the rear side of the upper clamping block 3.

[0023] like Figure 1-3 As shown, it also includes a foot pad 13, and the bottom of the lower clamping block 301 is fixedly connected to the foot pad 13.

[0024] When a workpiece needs to be clamped and processed using a fixture, the workpiece is manually and stably placed on the top rod 4 of the lower clamping block 301, ensuring that the bottom surface of the workpiece is in full contact with the top rod 4 of the lower clamping block 301. After the workpiece is placed, the double-headed cylinder 5 is activated. The telescopic rod of the double-headed cylinder 5 retracts, causing the lower clamping block 301 to move upward. During the movement, the lower clamping block 301 gradually approaches the upper clamping block 3. When the lower clamping block 301 moves to the appropriate position, the top rod 4 of the lower clamping block 301 and the bottom rod 4 of the upper clamping block 3 make close contact with the workpiece surface from below and above, respectively, thereby firmly fixing the workpiece and preventing displacement or shaking, ensuring the stability of the grinding operation. After the fixture has clamped the workpiece, the user can easily grip the handle 10, significantly improving the convenience of operating the fixture. The anti-slip sleeve 11 on the handle 10 increases friction and effectively prevents the fixture from accidentally falling during use. During operation, the workpiece to be processed is brought into contact with the grinding wheel for grinding. During the grinding process, debris and dust will be generated. The user can rotate the baffle 12 located at the upper clamping block 3 downwards. The baffle 12 can effectively block some of the flying debris and dust, providing protection for the user. When other parts of the workpiece need to be ground and the angle needs to be rotated, the user can rotate the rotating handle 6 to drive the worm gear 7 to rotate inside the housing 1. The rotation of the worm gear 7 drives the worm wheel 8 and the rotating shaft 201 to rotate together inside the housing 1. The rotating shaft 201 drives the connecting block 2 to rotate at the bottom of the housing 1, thereby driving the workpiece to rotate. At the same time, the rotation of the rotating shaft 201 drives the pointer of the scale 9 to rotate. By observing the direction of the pointer rotation and the scale on the scale 9, the user can quickly determine the grinding angle of the workpiece. After the workpiece is processed, the user can place the fixture on a flat platform. The foot pads 13 at the bottom of the fixture can provide stable support for the fixture.

[0025] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A jig for grinding wheels, characterized in that: The device includes a housing (1), a connecting block (2), a rotating shaft (201), an upper clamping block (3), a lower clamping block (301), a push rod (4), a double-headed cylinder (5), and an adjustment mechanism. The bottom of the housing (1) is rotatably connected to the rotating shaft (201), and the bottom end of the rotating shaft (201) is connected to the connecting block (2). The bottom of the connecting block (2) is symmetrically fixedly connected to two upper clamping blocks (3). The right side of the two upper clamping blocks (3) is fixedly connected to the double-headed cylinder (5). The bottom ends of the two telescopic rods of the double-headed cylinder (5) are fixedly connected to the lower clamping block (301). The upper clamping block (3) and the lower clamping block (301) are symmetrically arranged vertically. The bottom of the upper clamping block (3) and the top of the lower clamping block (301) are fixedly connected to the push rod (4). The housing (1) is provided with an adjustment mechanism for the rotation angle of the connecting block (2).

2. The jig for grinding wheels as described in claim 1, characterized in that: The adjustment mechanism includes a rotating handle (6), a worm (7), a worm wheel (8), and a dial (9). The rotating handle (6) is rotatably connected to the left side of the housing (1). The worm (7) is fixedly connected to the right end of the rotating handle (6). The worm (7) is rotatably connected to the housing (1). The worm wheel (8) is fixedly connected to the middle part of the rotating shaft (201). The worm (7) meshes with the worm wheel (8). The dial (9) is fixedly connected to the housing (1). The middle part of the dial (9) is rotatably connected to the rotating shaft (201). A pointer is rotatably provided in the middle part of the dial (9). The top of the rotating shaft (201) is fixedly connected to the pointer in the middle part of the dial (9).

3. The jig for grinding wheels as described in claim 2, characterized in that: It also includes a handle (10), which is fixedly connected to the rear top of the housing (1).

4. The jig for grinding wheels as described in claim 3, characterized in that: It also includes an anti-slip sleeve (11), which is fixedly connected to the handle (10).

5. A jig for grinding wheels as described in claim 4, characterized in that: It also includes a baffle (12), which is rotatably connected to the rear side of the upper clamping block (3).

6. The jig for grinding wheels as described in claim 5, characterized in that: It also includes foot pads (13), and the bottom of the lower clamping block (301) is fixedly connected to the foot pads (13).