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Turning clamp for slender shaft parts

A technology for slender shafts and parts, which is applied in the field of turning fixtures for slender shaft parts, can solve the problems that have not been effectively solved, the processing accuracy is difficult to guarantee, and the processing efficiency is reduced, so as to improve the difficult problems of processing, realize rotary processing, structure simple effect

Pending Publication Date: 2019-09-27
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional processing method of shaft parts is to use the chuck and the tip on the ordinary lathe in the way of "one clamp and one top". When the long diameter is relatively small, this processing method does not show obvious defects, but when the long diameter is relatively large (such as more than 30), under the influence of the clamping force of the "one clamp and one top" method, the processing deformation of the parts is obvious, the parts are bent, and the parts have a "waist drum" shape after processing, and the processing accuracy is difficult to guarantee.
In order to improve the processing quality, the current improvement measures include increasing the tool holder, switching to a double-tool lathe, or using ANSYS mathematical analysis modeling in the CNC lathe to achieve real-time compensation, or relying on very experienced technicians to reduce processing efficiency. Guarantee, the above methods are all measures to solve how to improve the bending deformation of parts with large aspect ratio
How to fundamentally eliminate the clamping deformation of such parts has not been effectively solved

Method used

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  • Turning clamp for slender shaft parts
  • Turning clamp for slender shaft parts
  • Turning clamp for slender shaft parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A turning fixture for slender shaft parts, characterized in that it includes: a universal tailstock sleeve 1, a large collar 2, a small collar 3, a sleeve nut 4, an end nut 5, a screw 6, a gasket 7, and a bearing mounting Shaft 8, part ferrule 9, centering bearing 10 and thrust bearing 11, the universal tailstock sleeve 1, large collar 2, small collar 3, sleeve nut 4, end nut 5, screw 6, gasket 7. The bearing installation shaft 8, the ferrule 9, the centering bearing 10 and the thrust bearing 11 are in contact with each other to form a whole fixture.

Embodiment 2

[0035] A turning fixture for slender shaft parts, characterized in that it includes: a universal tailstock sleeve 1, a large collar 2, a small collar 3, a sleeve nut 4, an end nut 5, a screw 6, a gasket 7, and a bearing mounting Shaft 8, part ferrule 9, centering bearing 10 and thrust bearing 11, the universal tailstock sleeve 1, large collar 2, small collar 3, sleeve nut 4, end nut 5, screw 6, gasket 7. The bearing installation shaft 8, the ferrule 9, the centering bearing 10 and the thrust bearing 11 are in contact with each other to form a whole fixture.

[0036] The tailstock sleeve 1 is characterized in that it also includes: an outer circular surface 12 for matching with a lathe tailstock, an inner circular surface 13 for matching with a centering bearing 10 and a thrust bearing 11, and an inner circular surface 13 for matching with a sleeve nut 4 The matched internal thread 14 is used for the threaded hole 15 connected with the handle of the tailstock of the lathe.

Embodiment 3

[0038] A turning fixture for slender shaft parts, characterized in that it includes: a universal tailstock sleeve 1, a large collar 2, a small collar 3, a sleeve nut 4, an end nut 5, a screw 6, a gasket 7, and a bearing mounting Shaft 8, part ferrule 9, centering bearing 10 and thrust bearing 11, the universal tailstock sleeve 1, large collar 2, small collar 3, sleeve nut 4, end nut 5, screw 6, gasket 7. The bearing installation shaft 8, the ferrule 9, the centering bearing 10 and the thrust bearing 11 are in contact with each other to form a whole fixture.

[0039] The tailstock sleeve 1 is characterized in that it also includes: an outer circular surface 12 for matching with a lathe tailstock, an inner circular surface 13 for matching with a centering bearing 10 and a thrust bearing 11, and an inner circular surface 13 for matching with a sleeve nut 4 The matched internal thread 14 is used for the threaded hole 15 connected with the handle of the tailstock of the lathe.

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Abstract

The invention belongs to the machine manufacturing industry and relates to machining of slender shaft parts, in particular to a turning clamp for the slender shaft parts. The turning clamp is characterized by comprising a universal tailstock sleeve, a large lantern ring, a small lantern ring, a sleeve nut, an end face nut, a screw, a gasket, a bearing installing shaft, a part clamping jacket, a centering bearing and a thrust bearing. The universal tailstock sleeve, the large lantern ring, the small lantern ring, the sleeve nut, the end face nut, the screw, the gasket, the bearing installing shaft, the part clamping jacket, the centering bearing and the thrust bearing make contact with one another to form the whole clamp.

Description

technical field [0001] The invention belongs to the aviation and aerospace manufacturing industry and relates to the processing of slender shaft parts, in particular to a turning fixture for slender shaft parts. Background technique [0002] In aviation, aerospace, automobile and other manufacturing industries, there are a large number of slender shaft parts. When the aspect ratio of such parts is greater than 30, the processing difficulty is significantly increased. The conventional processing method of shaft parts is to use the chuck and the tip on the ordinary lathe in the way of "one clamp and one top". When the long diameter is relatively small, this processing method does not show obvious defects, but when the long diameter is relatively large (such as more than 30), under the influence of the clamping force of the "one clamp and one top" method, the processing deformation of the parts is obvious, the parts are bent, and the parts have a "waist drum" shape after proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B23/00B23Q3/00
CPCB23B23/00B23Q3/00
Inventor 陈代鑫张林韦煜萍崔坤明刘祖智马思亮
Owner CHENGDU AIRCRAFT INDUSTRY GROUP