Clamping tool special for nut surface accurate grinding

By designing a special clamping fixture for precision grinding of nut surfaces, the problem of nut surface roughness after hot forging was solved, enabling efficient batch processing and dimensional consistency of nuts on a surface grinder.

CN224059561UActive Publication Date: 2026-03-31DINGXI HIGH-STRENGTH SCREW CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In the existing technology, the surface of ultra-large diameter nuts after hot forging is rough and cannot meet customer requirements. Furthermore, the surface roughness of stainless steel and nickel-based alloy nuts cannot be improved by post-hot forging processing, and there is a lack of surface grinding fixtures specifically designed for mass processing of nuts.

Method used

A special clamping fixture for precision grinding of nuts was designed, including a base and a clamping assembly. The base is made of carbon steel and has a long groove that can hold multiple nuts. The clamping assembly is connected by threads and an internal hexagonal hole to cooperate with an external hexagonal wrench to fix and process multiple nuts.

Benefits of technology

It achieves high efficiency in precision grinding of nut surfaces and stability in batch processing, solves the problems of fixing nuts on surface grinders and batch processing, and ensures the consistency of processing dimensions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special clamping tool for nut surface accurate grinding, which comprises a base, a long groove is arranged on the base along the length direction, and nuts are sequentially arranged in the long groove; the jacking assemblies are installed at the two ends in the long groove in a matched mode and used for fixing the nuts.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, especially relates to a special clamping tool for nut surface fine grinding. BACKGROUND

[0002] At present, the nut surface of M72 and above super large diameter specification after hot forging is rough, cannot satisfy the requirement of the customer, and the requirement of roughness of nut surface of special material such as stainless steel, nickel base alloy is higher, the nut surface after hot forging cannot satisfy the requirement of the customer, in order to improve the above situation, the nut needs further processing, and the hexagonal side size of the nut after hot forging is close to the finished product size, cannot reserve the allowance of milling processing, can only be processed through the surface grinder, however, there is no special clamp for nut batch processing on the present surface grinder. SUMMARY

[0003] In view of the above technical problems, the utility model provides a special clamping tool for nut surface fine grinding.

[0004] In order to realize the above purpose, the technical scheme of the utility model is as follows:

[0005] A special clamping tool for nut surface fine grinding, comprising:

[0006] A base is provided with a long groove in the length direction, and nuts are sequentially arranged in the long groove;

[0007] A jacking assembly is installed at both ends of the long groove, and is used for fixing the nuts.

[0008] The jacking assembly comprises:

[0009] A cylindrical top head is connected with the inner wall of the long groove through screw threads;

[0010] A top rod is arranged on the side wall of the top head, and is used for jacking the nuts.

[0011] An internal hexagonal hole is arranged on the outer side wall of the top head, and is used for connecting with an external hexagonal wrench to rotate the top head.

[0012] The top of the top head is a flat surface flush with the upper surface of the base.

[0013] The material of the base is carbon steel.

[0014] The utility model discloses a beneficial effect is: the utility model is especially used for the fine grinding of nut surface, the base is carbon steel frock, directly adsorbs on the plane grinder, safe and stable, the nut can be connected in series and set in the long groove, and the processing efficiency is high, simultaneously, the top -tight component can fix multiple nuts together in the long groove. The device utilizes the magnetism of carbon steel, so that the base can be adsorbed on the plane grinding machine workbench, and the problem that stainless steel nut cannot be adsorbed on the plane grinding machine workbench is solved. The device fixes multiple nuts with the top -tight component, and multiple clamping devices are placed on the plane grinding machine workbench at a time, and the problem that nut batch grinding is processed is solved. The base bottom plane of the device is the same reference of multiple nuts, guaranteeing the identity of batch nut processing size. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model.

[0016] Figure 2 It is the structure schematic diagram of the utility model's top -tight component.

[0017] Figure 3 It is Figure 2 side view. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, below combining with specific embodiment and referring to the drawings, the utility model is further detailed. It should be understood that these descriptions are only exemplary, and not to limit the scope of the utility model. Moreover, in the following description, the description of known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0019] As Figures 1 to 3 shown, a special clamping frock for nut surface fine grinding includes: base 1, which is provided with long groove along the length direction, and nuts 3 are sequentially arranged and placed in the long groove; top -tight component 2, which is installed at both ends inside the long groove and is used for fixing the nut 3. The top -tight component 2 includes: cylindrical top head 21, which is screw connected with the inner wall of the long groove; top rod 22, which is arranged on the side wall of the top head 21 and is used for tightly toping the nut 3. The outer side wall of the top head 21 is provided with internal hexagonal hole, which is used for connecting with external hexagonal wrench to rotate the top head 21. The top of the top head 21 is planar and flush with the upper surface of the base 1. The material of the base 1 is carbon steel.

[0020] When the utility model is used, the base 1 is adsorbed on the reasonable position of the plane grinder, the nuts 3 are sequentially placed in the long groove according to the number, the top -tight component 2 is fixed with internal hexagonal wrench, the size of the plane grinding wheel and the nut 3 surface is adjusted, the equipment is started, and processing is completed.

[0021] The top head 21 has a top flat surface flush with the upper surface of the base 1, which avoids the top head 21 from interfering with the working path of the flat grinding wheel.

[0022] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A special fixture for clamping a nut surface for fine grinding, characterized in that, The utility model relates to a nut tightening device, including: a base (1) provided with a long slot in the length direction, and a nut (3) arranged in the long slot in sequence; a tightening assembly (2) installed at both ends of the long slot for fixing the nut (3).

2. The special clamping tool for nut surface fine grinding according to claim 1, characterized in that, The tightening assembly (2) includes: a cylindrical head (21) with a threaded connection between the outer wall and the inner wall of the long slot; a top rod (22) arranged on the side wall of the head (21) for tightening the nut (3).

3. The special clamping tool for nut surface fine grinding according to claim 2, characterized in that, An inner hexagonal hole is arranged on the outer side wall of the head (21) for connecting with an outer hexagonal wrench to rotate the head (21).

4. The special clamping tool for nut surface fine grinding according to claim 2, characterized in that, The top of the head (21) is a flat surface flush with the upper surface of the base (1).

5. The special clamping tool for nut surface fine grinding according to claim 1, characterized in that, The material of the base (1) is carbon steel.