Polishing device for machining piston rod of building damper

By combining a double-sided mirror grinding mechanism and a constant pressure compensation mechanism, the problems of deformation and low efficiency in piston rod processing of traditional grinding devices are solved, realizing high-precision and high-efficiency piston rod processing, which is suitable for the mass production of building dampers.

CN122299472APending Publication Date: 2026-06-30CHANGZHOU JIANUOSHENG MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202610463454.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional grinding equipment suffers from problems such as piston rod elastic deflection, inconsistent grinding depth, vibration, and low production efficiency when processing piston rods of building dampers, making it difficult to meet the requirements of high precision and large-scale production.

Method used

The grinding mechanism, which adopts a double-sided mirror symmetrical arrangement, combined with a constant pressure compensation mechanism and support components, achieves synchronous grinding of the piston rod and constant grinding pressure by counteracting radial force, thereby suppressing deformation and improving cylindricity accuracy and processing efficiency.

Benefits of technology

It effectively solves the problem of piston rod deformation into a drum shape or saddle shape, improves cylindricity accuracy and machining efficiency, ensures consistent grinding depth throughout the entire length, and is suitable for large-scale high-precision production of piston rods for building dampers.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention relates to the technical field of piston rod polishing, in particular to a polishing device for building damper piston rod machining, which comprises a machining base, a headstock assembly and a tailstock assembly are respectively arranged at two ends of the machining base, and a reciprocating workbench is arranged between the headstock assembly and the tailstock assembly. A longitudinal driving mechanism for driving the reciprocating workbench to move is arranged on the machining base, two sets of grinding mechanisms are arranged on the two sides of the reciprocating workbench in a mirror symmetry mode, constant-pressure compensation mechanisms are arranged between the grinding mechanisms and the reciprocating workbench, and supporting assemblies are arranged on the two sides of each grinding mechanism. The two supporting assemblies are located between the grinding mechanism and the headstock assembly and between the grinding mechanism and the tailstock assembly respectively. The grinding mechanisms which are arranged in a bilateral mirror symmetry mode are matched with the constant-pressure compensation mechanism, so that bilateral synchronous grinding of the piston rod of the building damper is achieved, grinding force on the two sides counteracts, and elastic deflection of a workpiece caused by one-way radial force is eliminated; and the problem of waist-drum-shaped or saddle-shaped deformation easily occurring in the machining process of the piston rod with the large length-diameter ratio is effectively solved.
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