A tailstock support device

CN122400686APending Publication Date: 2026-07-17SICHUAN XINGJU TIMES INTELLIGENT EQUIPMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing single-end support structure of small module cantilever hob is prone to bending deformation and vibration during the cutting process, which leads to a decrease in tooth profile accuracy, deterioration of tooth surface finish, and shortened tool life, and cannot meet the requirements of high-precision machining.

Method used

An independent modular tailstock support device is adopted, which upgrades the cantilever single-end support to a two-end support structure. The rigidity of the tool holder is improved and the cutting vibration is suppressed by the back-to-back angular contact ball bearings and double sealing structure.

Benefits of technology

It significantly improves the machining accuracy and tool life of small module gears, increases machining efficiency, reduces equipment modification costs and downtime, and is suitable for the rapid modification of existing cantilever gear hobbing machines.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122400686A_ABST
    Figure CN122400686A_ABST
Patent Text Reader

Abstract

The application discloses a tailstock support device, which comprises a support frame, a bearing seat and a tailstock shaft rotatably supported in the bearing seat through a bearing assembly. The tailstock support device is an independent modular structure, which can be detachably added to an existing cantilever type hobbing bar, so that the cantilever type hobbing bar is changed from single-end support to two-end support structure. By adopting back-to-back installed angular contact ball bearings, the overall rigidity is effectively improved under the premise of ensuring high rotation accuracy, low friction and impact resistance. At the same time, a double sealing structure composed of a gas-tight sealing groove and a lip-shaped sealing ring effectively prevents cutting fluid and dust from entering the bearing interior. The tailstock support device is designed as an independent module, which can quickly realize the two-end support transformation of the existing cantilever type gear rolling machine in a low-cost and high-flexibility manner, improve the rigidity of the hobbing bar, machining accuracy and tool life, and solve the problems of the existing cantilever type hobbing bar, such as the decline of machining accuracy, the intensification of vibration and the easy damage of the tool due to insufficient rigidity.
Need to check novelty before this filing date? Find Prior Art