An Adaptive Grinding Fixture

Abstract

The invention discloses a self-adaptive grinding fixture. The self-adaptive grinding fixture comprises a base, a pull rod, a pressing seat, a pressing component and a positioning platform; the base isfixed to a machine tool; the pull rod is arranged in the base; the pressing seat is hinged to the base; the pressing component comprises a fixed pressing block and a moving pressing block; the movingpressing block is vertically hinged to the fixed pressing block; the fixed pressing block is mounted on the pressing seat; a supporting platform is arranged on the base and below the moving pressingblock; the positioning platform is mounted on the supporting platform; one end of the pull rod is connected with a machine tool executing mechanism capable of driving the pull rod to perform reciprocating linear movement; and the other end of the pull rod is connected with the pressing seat and drives the pressing seat to rotate to enable the fixed pressing block to rise and fall. The self-adaptive grinding fixture has the characteristics that the grinding machine tool for machining overall hard alloy cutters can be used for machining indexable numerical-control blades, and meanwhile, the grinding fixture can be parallel with workpiece positioning surfaces through automatic rotation of angles while pressing workpieces.

Description

technical field [0001] The invention relates to a cutting tool, in particular to an adaptive grinding fixture. Background technique [0002] In the cutting tool industry, due to the various shapes and high grinding precision of indexable CNC blades, the method of clamping the positioning surface up and down is mainly used in clamping, so the grinding machine tool is generally a specific machine tool developed for CNC blades. The structure of the integral carbide tool is mainly a round bar. When clamping, the execution structure of the machine tool only needs to tighten the clamp to clamp the bar. Therefore, the grinding machine tools used by the two are generally not common. However, the market demand for indexable CNC inserts and solid carbide tools is different. When the market demand for solid carbide tools decreases, factory machine tools will be idle and the utilization rate of machine tools will drop, which is not conducive to improving production efficiency for enterp...

AI Technical Summary

Problems solved by technology

However, there is an error in the thickness of the workpiece, and there are tolerances in the manufacture of the fixture. The error will cause the upper pressure block to clamp the contact surface after rotating around the support point or the clamping contact line is at an angle with the workpiece positioning surface. As a result, the surface contact becomes a line contact, and the line contact changes. In point contact, the workpiece cannot be clamped effectively

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