A loading and unloading machine telescopic sleeve and processing method

By employing a multi-step processing method and a gantry clamping fixture, the processing accuracy problem of thin-walled stainless steel slender rod-shaped welded components was solved, ensuring the straightness, symmetry, and flatness of the telescopic sleeve of the loading and unloading machine, thus meeting the functional requirements of the loading and unloading machine.

CN116900628BActive Publication Date: 2026-04-17XIAN NUCLEAR EQUIP CO LTD
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Patent Information

Application Number
CN202310860642.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-14
Publication Date
2026-04-17
Estimated Expiration
2043-07-14

AI Technical Summary

Technical Problem

Existing technologies cannot effectively solve the processing accuracy problem of thin-walled stainless steel slender rod-shaped welded components, resulting in the straightness, symmetry and flatness of the telescopic sleeve not meeting the requirements, which affects the normal operation of the loading and unloading machine.

Method used

A multi-step processing method is adopted, including rough machining, positioning and welding of the support, alignment using a CNC gantry milling machine, and overall precision machining. The tooling is fixed by a gantry clamp to prevent deformation and ensure machining accuracy.

Benefits of technology

The straightness, symmetry, and flatness of the telescopic sleeve meet the design requirements, satisfy the functional needs of the loading and unloading machine, and ensure the safe and stable operation of the equipment.

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Abstract

This invention discloses a telescopic sleeve for a loading and unloading machine and its processing method. First, the upper flange, lower flange, guide rails, mounting supports, and sleeve tube are rough-machined. Next, two rows of mounting supports are welded to the two opposite sides of the sleeve tube where the straightness is relatively small. Then, a CNC gantry milling machine is used to align and machine concave straight grooves. Next, two guide rails are welded into the two rows of concave straight grooves. Then, the upper and lower flanges are fitted onto the outer stops at both ends of the sleeve tube and positioned and welded. Finally, the entire assembly is precision-machined to complete the processing of the telescopic sleeve for the loading and unloading machine. The telescopic sleeve processed by this invention meets the requirements for straightness, symmetry, and flatness, ensuring the accuracy and tolerance requirements of the design drawings and satisfying the various functional requirements for equipment debugging.
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