Tap chuck for mechanical processing

Abstract

The invention relates to a tap chuck for mechanical processing, which is particularly suitable for a radial drilling machine to tap mass threads, belonging to the technical field of mechanical structures. According to the technical scheme, the tap chuck for the mechanical processing comprises a main handle and a tap jacket, and is characterized in that one end of the main handle is a cylindrical body, one end of the tap jacket is detachably arranged in the cylindrical body, a plurality of perforating through holes are arranged on the wall near the left end on the cylindrical body, a rolling ball is arranged in each through hole, a poking sleeve which can axially move relative to the cylindrical body is arranged outside the cylindrical body corresponding to the through holes, spaces used for containing the rolling balls and salients used for pushing the rolling balls to radially move in the through holes are arranged on the poking sleeve, a step is arranged in the middle of the cylindrical body, a spring is arranged outside the cylindrical body between the poking sleeve and the end surface of the step, and a recessed cavity used for containing part of the rolling balls is arranged on the outer wall of the tap jacket. The invention has the advantages of fast clamping, radial torque protection, production efficiency increase and reject rate reduction.

Description

technical field [0001] The utility model relates to a screw tap chuck used for mechanical processing, in particular, it is suitable for tapping large batches of threads by a radial drilling machine, and belongs to the technical field of mechanical structures. Background technique [0002] With the rapid development of my country's machinery industry, green energy is vigorously advocated. Wind power generation is a key industry supported by the state. The technical requirements are getting higher and higher. For a wind power part, there are more than 200 large and small threaded holes, and it is very difficult to process all of them and meet the customer's technical requirements (thread no-go gauge). Before this new type of tap chuck for machining, our department mainly used small three-grip chucks to clamp taps for tapping. However, due to the relatively large diameter and deep depth of the threaded holes of wind power parts, the clamping force of the three-grip chuck is ma...

AI Technical Summary

Problems solved by technology

However, due to the relatively large diameter and deep depth of the threaded holes of wind power parts, the clamping force of the three-grip chuck is manually controlled and the clamping is troublesome. Deep, there are few clamping positions for the tap, and it is also prone to follow-up phenomenon; the three-grip chuck itself does not have radial protection. When the torque exceeds the yield strength value of the tap, the tap will break and break in the threaded hole, making it difficult to take out; Although there are tap chucks for machining in the external market, the specifications are relatively single, generally only M8-M20, and there are very few tap chucks for machining of M36 or even M48. Even if there are, they are generally imported and expensive. , is not something ordinary enterprises can afford

Images