Tool for cleaning drilling burr

Abstract

The invention relates to the field of machining, in particular to a tool for cleaning a drilling burr. The tool comprises a countersink, a knob and a housing, wherein a main shaft, a fixing sheet, an adjusting sheet and a pneumatic motor are arranged inside the housing; the fixing sheet divides the housing into two parts; an eccentric air inlet is formed in the fixing sheet; the adjusting sheet and the fixing sheet are coaxially arranged and attach to each other; the adjusting sheet is provided with an air inlet and an air inlet channel; one end of the air inlet channel is communicated with the air inlet; the other end of the air inlet channel is communicated with the eccentric air inlet; a strip-shaped hole is formed in the housing; a connecting piece is arranged inside the strip hole; the knob is arranged outside the housing and fixedly connected with the adjusting sheet through the connecting piece; one end of the main shaft is connected with the pneumatic motor; and the other end of the main shaft extends out of the housing and is detachably connected with the countersink. The tool disclosed by the invention adjusts the air intake quantity of compressed air in a rotating mode, so as to adjust the rotating speed of the countersink. Therefore, the position adjustment of the countersink and the rotating speed adjustment of the countersink are completely independent, and the machining precision and the machining security can be improved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a drilling burr cleaning tool. Background technique [0002] After the machining and drilling process is completed, metal iron cutting burrs will be left on the front and back of the drilled hole; these burrs will change the size of the hole, affect the subsequent surface treatment of parts, the cooperation between the hole and other workpieces, or scratch personnel, so generally After drilling, subsequent processing is required to remove these burrs. [0003] The existing deburring method is generally to use a pneumatic tool to drive a countersink to rotate and cut the hole to remove the burrs. Pneumatic tools are tools that use compressed air as a power source. It can convert the kinetic energy of compressed air into mechanical rotational energy, and can adjust the intake volume of compressed air through a valve to adjust the speed. [0004] Most of the pneumatic tools cu...

AI Technical Summary

Problems solved by technology

However, in the process of operation, it is usually necessary to hold the pneumatic tool firmly to control the position and cutting force of the countersinking tool. In this case, the operator will simultaneously press the pressure handle while increasing the force of the grip. Once the force is too strong, it will As a result, the speed of the countersinking tool is accelerated, which is easy to cause cutting transition, and it is difficult to control the position of the countersinking tool when the force is reduced.

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