Cutting machine

Abstract

A cutting machine comprises a rotating chuck, a grinding head, a grinding wheel cutting device, a grinding wheel moving device, a feeding device and a rack. The grinding head is installed on the rotating chuck, and the rotating chuck is rotated to drive the grinding head; the rotating chuck is rotatably connected to the rack, and the grinding wheel cutting device is installed on the grinding wheelmoving device installed on a table of the rack. The cutting machine is characterized in that the cutting machine further comprises a cutting fixing device, a locating device a fixed-length block, andthe cutting fixing device and the fixed-length block are installed on the locating device; the cutting fixing device is installed on the rack, and the rotating chuck is rotated with a screw tap bar clamped; the cutting fixing device abuts against the screw tap bar pressed by the locating device, and the fixed-length block abuts against the end face of the screw tap bar; the grinding wheel cuttingdevice is driven by the grinding wheel moving device to radially move toward the screw tap bar for cutting the screw tap bar, and the screw tap bar is cut off after the grinding wheel cutting deviceis moved to the axis of the screw tap bar.

Description

technical field [0001] The invention relates to the field of screw tap manufacturing, in particular to a cutting machine. Background technique [0002] The raw material of the purchased tap is a continuous slender bar. Before processing the flutes and threads of the tap, the tap bar needs to be cut into multiple small segments equidistantly according to the specifications by a grinding wheel cutting machine. Since the grinding wheel cutting machine cuts the tap bar radially, it will be subjected to radial force during the cutting process of the tap bar. In addition, the outer diameter of the tap bar is small, and it will bend under the action of the radial force. As a result, the subsequent cutting and forming of the tap bar becomes bent, and the cutting accuracy cannot be guaranteed. [0003] And because the tap bar is held by the rotating chuck to drive the rotation, usually the manufacturing precision of the rotating chuck is not high, and it is easy to produce jumping w...

AI Technical Summary

Problems solved by technology

Since the grinding wheel cutting machine cuts the tap bar radially, it will be subjected to radial force during the cutting process of the tap bar. In addition, the outer diameter of the tap bar is small, and it will bend under the action of the radial force. As a result, the subsequent cutting and forming of the tap bar is bent, and the cutting accuracy cannot be guaranteed

[0003] And because the tap bar is held by the rotating chuck to drive the rotation, usually the manufacturing precision of the rotating chuck is not high, and it is easy to produce jumping when rotating, and the grinding wheel cutting machine cuts the jumping tap bar, which not only affects the stability of the equipment sex, increase the risk, and also reduce the cutting accuracy

[0004] At present, the degree of automation of cutting taps and rods on the market is generally not high, and the cutting efficiency is low, which cannot meet the needs of today's enterprises for high production efficiency.

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