Clamp for elongated workpiece with outer contour needing to be milled

Abstract

The invention discloses a clamp for an elongated workpiece with an outer contour needing to be milled. The clamp comprises a base, a moving gantry device, a positioning device and a control system, wherein a transverse guide rail is mounted at each of the upper and lower edges of the base; limiting devices used for limiting a workpiece blank are arranged on the upper surface of the base at intervals according to the shape of the outer contour of the workpiece blank needing to be machined; a gantry frame structure moves along the transverse guide rails under the control of a gantry frame cylinder; the positioning device comprises a pressing-down positioning device used for pressing down the middle of the workpiece blank and a plurality of rotatable angle positioning devices used for pressing down the outer contour of the workpiece blank; the control system controls the movement of the moving gantry device according to the machining movement locus of a tool and controls the loosening of one or more positioning devices in the positioning devices to avoid a tool path. The invention provides the clamp for the elongated workpiece with the outer contour needing to be milled, the machining efficiency is improved, the machining path of the tool is avoided, the operation safety is improved, and the machining precision is high.

Description

technical field [0001] The invention relates to the field of machining fixtures, in particular to a fixture for a long workpiece whose outer contour needs to be milled. Background technique [0002] Existing workpiece processing that requires milling of the outer contour often requires multiple manual assembly and disassembly of the workpiece pressing block, which takes a long time to process, high cost, and lacks operational safety, and generally only presses down around the workpiece. There is no pressing effect on the middle part of the workpiece, and the vibration generated by milling of the large workpiece will be transmitted to the entire workpiece during processing, so that the workpiece cannot be processed smoothly, and the machining accuracy is not high, and the middle part of the large workpiece without compression is prone to bulge In addition, when the tool is processed to the predetermined outer contour area of ​​the workpiece and the worker forgets to remove th...

AI Technical Summary

Problems solved by technology

[0002] Existing workpiece processing that requires milling of the outer contour often requires multiple manual assembly and disassembly of the workpiece pressing block, which takes a long time to process, high cost, and lacks operational safety, and generally only presses down around the workpiece. There is no pressing effect on the middle part of the workpiece, and the vibration generated by milling of the large workpiece will be transmitted to the entire workpiece during processing, so that the workpiece cannot be processed smoothly, and the machining accuracy is not high, and the middle part of the large workpiece without compression is prone to bulge In addition, when the tool is processed to the predetermined outer contour area of ​​the workpiece and the worker forgets to remove the workpiece pressing block, a collision will occur, which is easy to damage the fixture or cause injury to the worker, and the operation safety is low. , the labor intensity of the workers is high

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