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Gear self-tightening drill chuck and flat claw self-tightening drill chuck

A drill chuck, self-tightening technology, applied in the direction of tool joints, etc., can solve the problems of the drill bit falling off, the drill chuck loosening, and the inability to complete the reversal work, and achieve the effect of ensuring normal work.

Inactive Publication Date: 2017-02-22
柳尧亭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the existing scheme, after clamping, when the drill chuck is reversed, it is easy to loosen the drill chuck, causing the drill bit to fall off, and the reverse work cannot be completed

Method used

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  • Gear self-tightening drill chuck and flat claw self-tightening drill chuck

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Embodiment Construction

[0084] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0085] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the fields of machining equipment and electric tools, and particularly relates to a gear self-tightening drill chuck and a flat claw self-tightening drill chuck. The gear self-tightening drill chuck comprises an afterbody, a forebody, a front sleeve, a clamping jaw, a driven bevel gear and a retaining device, wherein the afterbody is arranged in the forebody; a driving bevel gear is arranged on one end of the afterbody; the driving bevel gear is engaged with the driven bevel gear; internal threads are formed on the driven bevel gear; external threads are formed on the clamping jaw; a back hole is formed in the forebody; the afterbody, the driving bevel gear, the forebody and the front sleeve are coaxial; the retaining device comprises a front connector and a back connector; first helical teeth are formed in one side of the front connector; second helical teeth are formed in one side of the back connector; the front connector is arranged on one side of an end cover; the first helical teeth are formed in one side, which is far from the end cover, of the front connector; and the back connector is engaged with the front connector. According to the gear self-tightening drill chuck, the clamping of a drilling tool is not influenced when the drill chuck rotates clockwise, a drill cannot be loosened when the drill chuck rotates anticlockwise, and normal operation of the self-tightening drill chuck is guaranteed.

Description

technical field [0001] The invention relates to the fields of machining instruments and electric tools, in particular to a gear self-tightening drill chuck and a flat claw self-tightening drill chuck. Background technique [0002] The drill chuck is a tool commonly used to hold drilling tools in the machining industry and the power tool industry. [0003] The drill chuck is generally composed of a drill jacket, an elastic ring, a connecting block, and a back cover. In the drill chuck, its axial positioning is realized by using the connecting block, and the socket is moved in the circumferential direction to make the axial movement under the action of the internal thread of the elastic ring, and the precise automatic centering and clamping of the drilling tool , when you need to use a drill chuck equipped with different drilling tools (such as center drill, drill bit, reamer, tap, etc.), you can loosen the positioning screw, turn the sector to the desired position, and tight...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/12
CPCB23B51/12
Inventor 柳尧亭
Owner 柳尧亭
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