Five axis linkage numerical control drill grinding machine

Abstract

The invention relates to equipment for processing bit, in particular to a five-axis linkage numerical control bit grinding machine, which comprises a spindle driven by a machine tool drive system for driving a workpiece to make rotation and axial feed, and a grinding wheel feeding device for driving a grinding wheel to feed along the radial direction of the workpiece. The equipment is characterized in that the equipment also includes a cross dilatory mechanism located close to the edge of the grinding wheel; the cross dilatory mechanism consists of a radial dilatory plate and an axial dilatory plate perpendicular to each other; the radial dilatory plate is driven by a drive shaft to move radially along the grinding wheel; the axial dilatory plate is driven by another drive shaft to move axially along the grinding wheel; and a diamond pen is arranged on the cross dilatory mechanism for trimming the grinding wheel. The equipment can drive a workpiece to rotate, radially move, feed grinding wheel and trim profile of the grinding wheel to achieve synchronous linkage, thus improving the grinding accuracy of bit.

Description

Technical field [0001] The invention relates to a device used for drill bit processing, in particular to a five-axis linkage numerical control drill bit grinder. Background technique [0002] Existing drill grinders for drill groove grinding generally have a three-axis linkage structure, which can control three related actions of workpiece rotation, workpiece axial movement and grinding wheel feed movement during the working process. The drill grinder of this structure cannot control the section shape of the grinding wheel in real time, so the dimension error of the drill groove processed will increase with the wear of the grinding wheel, thereby reducing the processing accuracy of the product . In addition, after the grinding wheel is worn, the section of the grinding wheel needs to be trimmed. The existing dressing method is generally on a special dressing device. The outer edge of the grinding wheel is truncated by the swing of two gold pens located on both sides of the outer ...

AI Technical Summary

Problems solved by technology

The drill grinder with this structure cannot control the truncated shape of the grinding wheel in real time, so the dimensional error of the processed drill groove will increase with the wear of the grinding wheel, thereby reducing the processing accuracy of the product

In addition, after the hemp grinding wheel is worn out, its sectional shape needs to be trimmed. The existing trimming method is generally on a special dressing device, and the outer edge of the emery wheel is truncated by swinging two gold pens on both sides of the outer edge of the emery wheel. Two sections of approximate circular arcs are trimmed. This trimming method is only suitable for dressing after the grinding wheel is used. It cannot control the sectional shape of the grinding wheel in real time during the working process. In addition, the sectional shape is relatively simple and cannot be adjusted according to the drill bit. The special shape of the groove requires changing the cutting shape of the grinding wheel

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