Reverse counterboring machining method for magnetic drill

Abstract

The invention belongs to the technical field of hole machining and relates to a reverse counterboring machining method for a magnetic drill. The method comprises the following steps that 1), a machining workpiece is fixed, 2) the magnetic drill is electrified, a base of the magnetic drill is attracted to the upper surface of the machining workpiece, and the surface to be counterbored of the machining workpiece is the lower surface of the machining workpiece; 3), the connecting end of a reverse counterboring tool bar is connected with a main shaft of the magnetic drill, the tool bit end of the reverse counterboring tool bar is made to penetrate a bore to be counterbored, a tool bit is mounted at the tool bit end, a motor switch of the magnetic drill is turned on, the main shaft of the magnetic drill is made to rotate, the reverse counterboring tool bar and the tool bit are driven to rotate, the magnetic drill is rotated manually to drive the main shaft of the magnetic drill to move upwards, and reverse counterboring machining is conducted; and 4), after the bore to be counterbored is counterbored, the motor switch of the magnetic drill is turned off, the tool bit is disassembled, the reverse counterboring tool bar is lifted up, and meanwhile the magnetic drill is taken down. By the adoption of the method, the operation is simple, the cost is low, and meanwhile the risk of hanging workpieces and workpiece damage can be lowered.

Description

technical field [0001] The invention belongs to the technical field of hole processing, and relates to a processing method for countersinking with a magnetic base drill. Background technique [0002] During the machining process, some workpieces need to be countersinked on the back of the hole to form a certain angle and plane, so that bolts, gaskets and other parts can be assembled during use. At present, boring and milling machines or gantry milling machines are mostly used in the industry, which rotate the workpiece up and down 180° for front spot facing, or radial drilling machines for reverse spot facing, especially some large parts need large enough machine tools to process. However, these technologies have the following problems: workpiece rotation, multiple clamping, long processing cycle, and high risk of hanging parts, which are easy to cause damage to the workpiece, damage the processing quality, and high cost of machine tools. Therefore how to design a kind of p...

AI Technical Summary

Problems solved by technology

However, these technologies have the following problems: workpiece rotation, multiple clamping, long processing cycle, and high risk of hanging parts, which are easy to cause damage to the workpiece, damage the processing quality, and high cost of machine tools

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