Floating and breakage preventing screw tap clamp

Abstract

The invention discloses a floating and breakage preventing screw tap clamp. The floating and breakage preventing screw tap clamp is characterized by comprising a screw tap chuck, an upper slotted set screw, a lower slotted set screw, a guide sleeve, a rotation stopping bolt, a sliding ferrule, a mandrel, an outer hexagon nut, a torque transmission steel ball, a torque transmission spring and a clamp handle. During use, by using the floating and breakage preventing screw tap clamp, automatic feed in the tapping process is realized; meanwhile, disalignment error, mounting errors of workpieces, precision error of a machine tool and the like after a machine tool spindle and a drum turret are repeatedly positioned are eliminated, and the processing precision of threads is improved; meanwhile, the common problem that a screw tap is twisted off during automatic tapping due to chip blockage, disalignment, low roughness, over tapping and the like is solved; new workers can ensure the processing quality of products, so that the qualified rate of the products is greatly improved, and the processing cost is effectively reduced; and in addition, the floating and breakage preventing screw tap clamp has the advantages of simple structure, flexibility, reliability and low cost.

Description

technical field [0001] The invention belongs to the technical field of machining fixtures, in particular to a floating anti-breaking tap fixture. Background technique [0002] At present, in the production and processing of special bearings, many types of bearings need to process small threads on the mandrel. Therefore, tapping small holes is a routine processing procedure. Rotary lathes are often used for processing. After the head is clamped, first drill the threaded bottom hole with the drill bit on the tailstock wheel tool holder, then rotate the wheel tool holder, and tap the thread by manually operating the tapping chuck on the wheel tool holder. After clamping and drilling the thread bottom hole, it is difficult to ensure the thread quality by rotating the rotary tool holder again to tap the thread, because the axis of the thread bottom hole and the tap axis must be coaxial during tapping, and it is difficult to do repeated positioning of the rotary tool holder If th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide a method that solves the common problem of twisting the tap due to chip blocking, misalignment, etc. during automatic tapping, and can realize the automatic tapping process. Feed, while eliminating the error of different axes after repeated positioning of the machine tool spindle and the wheel tool holder and the accuracy error of the machine tool itself, the floating anti-breakage tap fixture that improves the thread processing accuracy

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