A kind of tapping assembly and tapping method

Abstract

The invention discloses a tapping assembly and a tapping method, and relates to the technical field of mechanical production and processing. A tapping assembly includes a tapping handle. The right side wall of the tapping handle is evenly fixedly connected with a blade. There is a back angle at the left end of the tap handle, and a sleeve is slidably connected to the outer wall of the tapping shank, and the left end of the sleeve is connected with a limit ring. Through the above method, the present invention inserts the sleeve into the threaded bottom hole, and the wire Accurate positioning of the tapping center, fast straightening of the rear corner, not limited to the specific structure of the outer surface of the tapping, and then the rear corner pre-opens the thread groove for the threaded bottom hole, and finally the blade continues tapping the pre-opened thread groove , It can perform fast manual tapping on small batches of workpieces or large workpieces, ensuring a tapping pass rate of over 99%, to solve the instability of manual tapping, and requires a low level of operator skills.

Description

technical field [0001] The invention relates to the technical field of mechanical production and processing, in particular to a tapping assembly and a tapping method. Background technique [0002] With the development of the machinery industry, precision machine tools have been widely used, and there are more and more multi-functional equipment. One process can basically be completed, and turning, milling, drilling, tapping, and boring may all be performed in one operation. Process is completed. This can fully meet the requirements for the processing of large batches of workpieces, but it requires a large investment for small batches of workpieces. If the investment in equipment, fixtures, etc. is too much, it will affect the output efficiency, and it will often be divided into multiple processes for processing. [0003] Tapping is a common processing method in mechanical production and processing. During the processing of relatively large castings, there are often places w...

AI Technical Summary

Problems solved by technology

This can fully meet the requirements for the processing of large batches of workpieces, but for small batches of workpieces, it requires a large investment, such as equipment, fixtures, etc. When too much investment will affect the output benefit, it is often divided into multiple processes for processing

[0003] Tapping is a common processing method in mechanical production and processing. During the processing of relatively large castings, it is often encountered where thread processing is required. Sometimes the castings have special shapes or large shapes, and it is not easy to use machine tools or special equipment for tapping. , It is necessary to manually process the thread, but when the thread is processed manually, it is easy to cause the thread to be deflected, resulting in the thread being unusable, affecting the product performance or causing the product to be scrapped. Therefore, manual tapping has higher technical requirements for the operator.

[0004] like image 3 The workpiece shown is a casting, the product shape distance is 1000mm, and the two end faces of the thread are sloped, which is not easy to fix and process on the machine tool and tapping machine. For the casting thread, because the product is large and the product value is high, the initial tapping thread When tapping, it is to find an experienced master to tap, but the first tooth is slightly deflected when tapping, which will cause serious deflection of the rear thread, so the efficiency is very low

The product rate is sometimes less than one pass and the pass rate is less than 60%. For this kind of thread, the tapping efficiency of conventional methods is low and the pass rate is low

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