Hook lock internal thread cutter

Abstract

The invention discloses a hook lock internal thread cutter, which comprises a knife seat, a knife handle, a notch, a clamping surface, a fixing screw, a fine-tuning screw, a knife head, a mounting hole, a sharp corner of a thread, a cutting edge and a chip removal groove. The beneficial effect of the invention is: the corner tip of the notch is set in an arc shape, avoiding damage to the thread corner of the cutter head during installation, and has a certain protective effect on the thread corner, and the fine-tuning screw rotates to make the knife The seat is inclined at different angles relative to the handle, and corresponding adjustments are made for internal threads of different depths, which has high practicability. The thread tip and cutting edge of the cutter head are made of tungsten carbide carbide material It can prolong the service life of the thread cutter. There is a wiper blade at the tail of the thread tip to smooth the top diameter of the processed thread to avoid the process of deburring after processing. The cutting edge locks the hook and then planes. The thread processing is carried out by the thread sharp corner, which solves the problem of poor surface finish during processing.

Description

technical field [0001] The invention relates to a thread cutter, in particular to a hook lock internal thread cutter, which belongs to the technical field of metal cutting. Background technique [0002] Internal thread production is also called tapping. The internal thread production device is a kind of processing on the inner surface of the holes of parts with different specifications of through holes or blind holes, such as machine shells, equipment end faces, nuts, flanges, etc. It is a mechanical processing equipment for internal thread, screw or tooth button. The common thread cutters are solid carbide thread cutters and rack blade thread cutters, which have 5 to 7 tooth tip threads, which can be processed at one time. Multi-tooth The general processing flow of the thread milling cutter is that the cutting edge of the thread milling cutter is covered with thread processing teeth, through the three-axis linkage of the CNC machine tool, the forming thread milling cutter i...

AI Technical Summary

Problems solved by technology

[0002] Internal thread production is also called tapping. The internal thread production device is a kind of processing on the inner surface of the holes of parts with different specifications of through holes or blind holes, such as machine shells, equipment end faces, nuts, flanges, etc. It is a mechanical processing equipment for internal thread, screw or tooth button. The common thread cutters are solid carbide thread cutters and rack blade thread cutters, which have 5 to 7 tooth tip threads, which can be processed at one time. Multi-tooth The general processing flow of the thread milling cutter is that the cutting edge of the thread milling cutter is covered with thread processing teeth, through the three-axis linkage of the CNC machine tool, the forming thread milling cutter is used to perform helical interpolation to form a thread, and the tool can be processed along the helical line for one week To complete the thread processing, you can also rotate a few more weeks to reach the required depth of the thread. The disadvantage is that the multi-tooth thread milling cutter takes up a lot of processing space, and the chip removal is not smooth, which is easy to cause tool wear and reduce the service life of the tool. In addition, this type of thread cutter is not suitable for processing internal threads with small diameter and large depth because the head is too large and the depth is not enough.

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