Rotation surface precision machining clamp with adjustable off-axis quantity

Abstract

The invention discloses a rotation surface precision machining clamp with adjustable off-axis quantity. A guide groove on a V-shaped block can slide along a guide rail on a clamp bottom plate, a T-shaped sliding block is movably connected with a T-shaped groove on the clamp bottom plate, a locating pin is detachably connected in the T-shaped sliding block, a cylindrical workpiece is detachably connected with the T-shaped sliding block through the locating pin so that the location of the cylindrical workpiece on the clamp bottom plate is realized, and the fixing of the V-shaped sliding block and the clamp bottom plate can be realized in a way that the V-shaped sliding block is in threaded connection with corresponding threaded holes in equidistant threaded hole arrays at two sides of the clamp bottom plate. The rotation surface precision machining clamp provided by the invention is suitable for cylindrical workpieces in different sizes, different shapes and different off-axis quantities, the processing problem of a workpiece in larger off-axis quantity can be solved, the universality is better, the processing space is expanded, multiple workpieces can be clamped at the same time, and the processing efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of machine tool fixtures, and in particular relates to a precision machining fixture for a curved surface of revolution with an adjustable off-axis amount. Background technique [0002] Cylindrical workpieces are often processed in the process of CNC machining, and the cylindrical blank needs to be clamped on the machine tool through a specific fixture. Through the review of existing fixture patents, it is found that in the existing ordinary machine tool fixtures, the fixture for clamping cylindrical workpieces can usually only be adjusted for different diameters of the workpiece, and the workpiece is usually clamped at the center of the spindle. The off-axis position cannot be adjusted arbitrarily, and it has no applicability to cylindrical workpieces whose diameter and off-axis amount can be adjusted; in addition, the use of circular vacuum suction cups in modern CNC machine tools is becoming more and more...

AI Technical Summary

Problems solved by technology

Through the review of existing fixture patents, it is found that in the existing ordinary machine tool fixtures, the fixture for clamping cylindrical workpieces can usually only be adjusted for different diameters of the workpiece, and the workpiece is usually clamped at the center of the spindle. The off-axis position cannot be adjusted arbitrarily, and it has no applicability to cylindrical workpieces whose diameter and off-axis amount can be adjusted; in addition, the use of circular vacuum suction cups in modern CNC machine tools is becoming more and more common, but its size is limited. The processing of workpieces with large off-axis has certain limitations, which requires the use of specific fixtures to expand the processing space of the machine tool

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