Screw tap module with composite coating layers

Abstract

The invention discloses a screw tap module with composite coating layers. The screw tap module comprises a taper handle, a taper rod, a mounting base, thread teeth, a scale line, a limiting nut, a positioning sleeve, support rods, support legs, a cutting part, threads, a tapping head, a chip removing groove and a through hole. The screw tap module has the following beneficial effects: a clamping groove is formed in the tail end of the mounting base for fixed connection between the mounting base and a rotating rod; the limiting nut is rotationally connected with the taper handle through the thread teeth for adjusting the mounting position of the limiting nut on the taper handle; the positioning sleeve and the support legs enable the taper rod to vertically stand through the support rods ontwo sides; the positioning sleeve is rotationally connected with the taper handle through the thread teeth for positioning in machining of internal threads to prevent inclination; two ends of the scale line are connected with the inner side edges of the limiting nut and the positioning sleeve, so that operators can master the machining depth at any time in machining of the internal threads; and the composite coating layers are coated on the threads of the cutting part and the outer surface of the tapping head to improve the durability of the threads and the tapping head.

Description

technical field [0001] The invention relates to a tap, in particular to a tap component with a composite coating, belonging to the technical field of metal cutting. Background technique [0002] Tap is one of the commonly used tools in machining. It is a tool used to process internal threads on parts in machinery manufacturing. It is widely used in the machining industry. [0003] For the existing taps, first, in machining, when the tap is used for tapping, the front end of the tap cannot be positioned in the hole to be tapped, and then the internal thread to be processed is easy to be inclined when processing the internal thread. This leads to the scrapping of the workpiece. Second, it is impossible to control the depth of the processed internal thread. Problems such as too deep or shallow processing often occur, and the accuracy is poor. Third, the thread and tapping head are used when processing internal threads. It is easy to wear and damage, causing industrial waste. ...

AI Technical Summary

Problems solved by technology

[0003] And for existing screw tap, one, in mechanical processing, when adopting screw tap to carry out tapping, the front end of screw tap enters in the tapped hole and can't be positioned, and then easily makes the processed internal thread incline when processing internal thread, The workpiece is scrapped. Second, the depth of the processed internal thread cannot be controlled. Problems such as processing too deep or too shallow often occur, and the accuracy is poor. Third, when processing the internal thread, the thread and tapping head Easy to wear and damage, resulting in industrial waste

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