Thin part machining fixture

Abstract

The invention discloses a thin part machining fixture. The machining fixture comprises a main base, a machining table, a plurality of external clamping mechanisms and a cylinder clamp inside support;the machining table is arranged in the center of the main base; the plurality of external clamping mechanisms are arranged on mounting seats distributed around the main base; the cylinder clamp insidesupport is arranged in the center of the machining table; each external clamping mechanism comprises an air cylinder, an extendable shaft and an external clamping curved block, wherein one end of theextendable shaft is connected with the air cylinder, and the other end of the extendable shaft is fixedly connected with the external clamping curved block; the cylinder clamp inside support includesan inner extendable ring, a connecting shaft and an inner supporting ring; the inner extendable ring is composed of a plurality of inner curved clamps; the inner supporting ring is composed of a plurality of inner support curved blocks; the number of the inner curved clamps and the number of the inner support curved blocks are equal, and each inner curved clamp and each inner support curved blockare connected into a whole through the corresponding connecting shaft; and balls are arranged on the inner side of the plurality of the inner support curved blocks in a rolling mode, and the balls are matched with ball grooves embedded in a round table type regulating mechanism.

Description

technical field [0001] The invention relates to the fields of mechanical processing and machine tool fixtures, in particular to a fixture for processing thin parts. Background technique [0002] Thin parts have the characteristics of light weight, compact structure and material saving, and are widely used in current mechanical manufacturing. However, due to the poor rigidity and weak strength of thin parts, the thin wall of the workpiece is easy to deform under the action of clamping force during processing, which affects the dimensional accuracy and shape accuracy of the workpiece. In addition, under the action of cutting force, the workpiece will change Thermal deformation and vibration deformation will also occur, affecting the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece. Therefore, it is necessary to propose a fixture for processing thin parts that can solve the above problems. Contents of the invention [0003] The object of...

AI Technical Summary

Problems solved by technology

However, due to the poor rigidity and weak strength of thin parts, the thin wall of the workpiece is easy to deform under the action of clamping force during processing, which affects the dimensional accuracy and shape accuracy of the workpiece. In addition, under the action of cutting force, the workpiece will become deformed Thermal deformation, vibration deformation will also occur, affecting the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece

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