A ring workpiece fixing device

Abstract

A ring type workpiece fixing device comprises two parts of an inner fixing device and an outer fixing device, wherein either the inner fixing device or the outer fixing device consists of a fixing ring, a clamping ring and a connecting ring. The ring type workpiece fixing device is used for fixing a workpiece when the inner or outer round surface of one ring workpiece or a plurality of workpieces in an overlapped combination manner is subjected to lathe work, and can provide the workpiece with adjustable axial static pressure. When the outer round surface of the workpiece is processed, the inner fixing device is used. When the inner round surface is processed, the outer fixing device is used. When the ring type workpiece fixing device is used, each first screw on a clamping point is regulated by a torque spanner in a certain sequence, tightening force is transmitted to steel balls through a guide column and is converted to axial positive pressure due to the guide of a guide sleeve and the point contact of the steel balls, and the fixing and clamping of the workpiece are realized through clamping the workpiece by the steel balls through a washer. Finally, the workpiece is only subjected to axial force, and radial force and tangential force are zero, so that the clamping deformation degree of the workpiece is the lowest. The workpiece processing cylindricity and coaxiality and combination processing consistency can be ensured.

Description

technical field [0001] The invention relates to a ring-type workpiece fixing device, which is used for fixing and clamping the workpiece when a single piece or multiple pieces of the ring-type workpiece are stacked and combined to process the inner and outer circular surfaces. Dimensional and shape accuracy of surface turning. Background technique [0002] When ordinary workpieces are machined, they are usually fixed by clamping with clamps, but for turning inner and outer circular surfaces of ring workpieces, if clamping with end clamps is used, in addition to the axial compressive force , will inevitably bring radial or tangential force, which will lead to the deformation of ring workpieces, especially low rigidity ring workpieces, and affect the machining accuracy; if the inner circle or outer dome clamping method is used, the clamping force is not easy to control It is easy to cause insufficient clamping force or excessive clamping force to cause deformation of the work...

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the deformation problem caused by clamping ring workpieces in the prior art, and to provide a ring workpiece fixing device, which applies an adjustable axial static pressure to the workpiece, so that the ring workpiece The fixture with the least clamping deformation and meeting the needs of inner and outer circular turning

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