Machining part for honing inner hole

By using honing to machine the internal holes of components on CNC machine tools, the problem of insufficient roughness of the tailstock mandrel hole was solved, achieving high-precision tailstock mandrel sliding and improving the overall machine precision, reducing costs and expanding the scope of application.

CN224274584UActive Publication Date: 2026-05-26SHENYANG MASCH TOOL (GRP) CO LTD
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Patent Information

Application Number
CN202620543636.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-04-22
Publication Date
2026-05-26
Estimated Expiration
2036-04-22

AI Technical Summary

Technical Problem

The roughness of the mandrel hole wall in the tailstock of a CNC machine tool is difficult to meet the design requirements, which makes it impossible for the tailstock mandrel to slide smoothly in the mandrel hole, posing a risk of scratches and seriously affecting the cutting accuracy of the whole machine.

Method used

A machining component for honing internal holes is provided, including a base, an elastic mechanism, a honing stone, a connecting rod, and a locking mechanism. The elastic mechanism presses the honing stone against the wall of the tailstock spindle hole, and the honing is performed by rotating the boring machine spindle to achieve a roughness requirement of Ra0.4, ensuring smooth sliding of the tailstock spindle.

Benefits of technology

It improves the cutting accuracy and overall quality of CNC machine tools, reduces the limitations of honing machines, is suitable for machining tailstock mandrel holes of different diameters, has strong versatility, and reduces costs.

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Abstract

The utility model provides a machining part for honing an inner hole, which relates to the technical field of inner hole machining, is used for being assembled on a cutter bar of a main shaft of a boring machine, and comprises a seat body, one end of the elastic mechanism is connected with the seat body; the honing oilstone is connected with the other end of the elastic mechanism; one end of the connecting rod is connected with the seat body, and the connecting rod intersects with the cutter bar and is in sliding connection with the cutter bar so as to be used for adjusting the distance between the honing oilstone and the cutter bar; the locking mechanism is arranged on the cutter bar, the locking mechanism is used for locking the connecting rod on the cutter bar, and the honing oilstone can hone the hole wall of the inner hole to be machined when the main shaft rotates; the machining part can guarantee that the hole wall roughness of the tailstock mandrel hole meets the design requirement, meanwhile, the machining part can be suitable for machining tailstock mandrel holes with different hole diameters, and universality is high.
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