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Tapping chuck

A tapping chuck and chuck technology, which is applied in the field of machining, can solve the problems of cumbersome operation of the tap chuck, unreliable torque transmission, and easy breakage of the tap, so as to achieve convenient and quick replacement of joints, reliable torque transmission, and ensure machining accuracy. Effect

Inactive Publication Date: 2010-09-29
CSSC MARINE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patents adjust the torque through the steel ball spring combination mechanism, which solves the problem that the tap is easy to break during the tapping process, but the torque transmission between the chuck body and the tap chuck is unreliable, and the operation is cumbersome and the work efficiency is low when replacing the tap chuck.

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with drawings and embodiments.

[0021] Such as Figure 1 to Figure 6 As shown, the present invention includes a collet handle 1, a torque adjustment mechanism 2, a clutch mechanism 3, and a tap clamping mechanism 4. The clutch mechanism 3 is arranged at the middle and lower part of the chuck handle 1, including a chuck body 41, a clutch body 31, several rollers 33, and a retainer 34; the chuck body 41 is a flange structure, and the inner hole is a stepped hole. The body 41 is located at the lower end of the chuck handle 1, the first thrust bearing 36 and the second thrust bearing 38 limit the axial movement of the chuck body 41, the first thrust bearing 36 is supported on the stepped shaft end surface of the middle part of the chuck handle 1, and the second thrust bearing The bearing 38 is fixedly connected with the chuck handle 1 through the spacer 49 and the screw 47. Several semicircular notches 4...

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Abstract

The invention discloses a tapping chuck comprising a handle, a torque adjusting mechanism, an engaging and disengaging mechanism and a screw tap clamping mechanism. The torque adjusting mechanism is rotatablely folded in the middle part of the handle of the tapping chuck; the engaging and disengaging mechanism is arranged on one side of the torque adjusting mechanism; the screw tap clamping mechanism comprises a chuck, a joint, two steel balls and a locking ring; the steel balls are respectively arranged in a pair of symmetrical holes which are disposed on the outer circumferential surface of the chuck body; the inner sides of the steel balls are leaned against the joint; the locking ring is sleeved on the outer circumferential surface of the chuck body and compresses tightly the outer sides of the steel balls; one end surface of the chuck body, which is far from one side of the edge of a flange, is provided with symmetrical bosses; and the bosses are clamped in the flange clamp slot of the joint. The tapping chuck can transmit the torque reliably without sliding, ensure the processing precision of the processed threaded hole and lock reliably, and the joint of the tapping chuck can be replaced conveniently and easily.

Description

technical field [0001] The invention relates to a clamp for a drilling machine, in particular to a tapping chuck for processing threaded holes, and belongs to the technical field of mechanical processing. Background technique [0002] Tapping chucks are mainly used to process threaded holes, and their joints are connected to tap shanks. Taps with different diameters have different shank diameters. Therefore, the joints of tapping chucks should be easy to replace frequently to meet processing needs. In addition, if the torque is too large or the hardness of the workpiece is unstable during the tapping process, the tap may easily break, reducing work efficiency and increasing costs. [0003] The Chinese utility model patent No. 92204987 discloses a tapping chuck. The tapping chuck includes a shaft shank and a chuck body. The tap chuck passes through the chuck body. Clutch sleeve and steel ball spring combination mechanism, the chuck body transmits the torque to the tap chuck ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/10
Inventor 史德明
Owner CSSC MARINE POWER
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