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Skip method for grinding interlocking tooth screw tap

A technology of taps and staggered teeth is applied in the field of skipping grinding method of staggered teeth taps, which can solve the problems of insignificant effect and so on.

Inactive Publication Date: 2008-08-06
刘海福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of technology, internal thread tapping often encounters difficult-to-machine materials such as high strength, sticky, hard, etc. Ordinary taps are not competent, the processing does not move, the taps are stuck, the taps are stuck, and the taps are broken; people have thought of some methods such as Shortening the length of the correcting tooth part, reducing the width of the blade, and grinding away the jumping tooth structure of every other tooth, etc., the effect is not significant

Method used

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  • Skip method for grinding interlocking tooth screw tap
  • Skip method for grinding interlocking tooth screw tap
  • Skip method for grinding interlocking tooth screw tap

Examples

Experimental program
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Effect test

Embodiment 1

[0013] Wrong-tooth tap skipping grinding method, use the heart chuck to clamp the three-groove ordinary standard tap on the top of the thread grinder or shovel lathe, the angle between the grinding wheel should be less than 60° and greater than 50°, and the grinding wheel is aligned with any blade For the interdental groove on the top, the grinding wheel walks a pitch every time the tap rotates once. Every time the tap rotates 240 degrees, the grinding wheel has to skip a blade to grind the respective sides of the two teeth on both sides of the interdental groove on the next blade. Starting from the cutting teeth at the top of the tap, feed the grinding amount of the grinding wheel, grind once from the beginning to the end, and complete the grinding of the three-groove staggered-tooth tap, and detect the amount of grinding of the tap teeth on the middle diameter.

[0014] Wrong-tooth tap skipping grinding method, the four-slot tap is that the tap rotates 180° every time, the gr...

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Abstract

A jump-over grinding method for machining the tooth-staggered screw tap features that the abrasive disc installed on the spiral grinding machine or relief grinding machine and with a tip angle between 50-60 deg can grinding the lateral surface of tooth in jump-over mode, that is, a tooth is jumped over between adjacent two grindings. When the screw tap is rotating by 360 deg, the abrasive disc moves forward by a spiral pitch.

Description

Technical field: [0001] The invention relates to a jump grinding method of a wrong-tooth tap in the field of tap tools. Background technique: [0002] At present, most of the ordinary standard tap manufacturers still manufacture taps with a 60° tooth angle structure. For many years, they have continued to use this kind of forming, sealing and cutting to attack internal thread grooves. With the development of technology, internal thread tapping often encounters difficult-to-machine materials such as high strength, sticky, hard, etc. Ordinary taps are not competent, the processing does not move, the taps are stuck, the taps are stuck, and the taps are broken; people have thought of some methods such as Shortening the length of the correcting teeth, reducing the width of the blade, grinding away the jumping tooth structure of every other tooth, etc., the effect is not significant. [0003] Drawing on the cutting principle of the wrong-tooth upper edge milling cutter and the sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B3/18
Inventor 刘海福
Owner 刘海福