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Chuck and electric tool using same

A collet and tool head technology, applied in the field of electric tools, can solve problems such as high cost, unsuitable for mass production, complex structure, etc., and achieve the effect of simple structure

Active Publication Date: 2011-06-29
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned collet can realize one-hand operation and quick-change tool head, it is not suitable for mass production due to its complex structure and high cost.

Method used

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  • Chuck and electric tool using same
  • Chuck and electric tool using same
  • Chuck and electric tool using same

Examples

Experimental program
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Effect test

Embodiment Construction

[0034] refer to figure 1 , the present invention discloses a chuck 10 for quickly clamping and releasing a tool head 90, the chuck 10 can be installed on hand-held electric tools such as hammers, drills, screwdrivers, and impact wrenches. In a preferred embodiment of the present invention, the collet 10 includes a main shaft 20, a sheath 30 installed on the main shaft 20, a locking member 40 of a locking tool head 90, an elastic assembly 50 installed in the sheath 30, and a mounting Ejector 60 within the main shaft 20 . The input part 29 of the main shaft 20 is connected to a drive shaft (not shown in the figure) so as to drive the main shaft to rotate or impact.

[0035] The main shaft 20 has a blind hole 21 extending in the longitudinal direction for accommodating an externally inserted tool bit 90. The blind hole 21 has an open end 211 and a closed end 212. The blind hole 21 has a first part 24 with a relatively large inner diameter along the axial direction and The secon...

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PUM

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Abstract

The invention relates to a chuck for accommodating and clamping an externally inserted tool head, which comprises a main shaft, a lock member, a jacket, an elastic component and a pop-up device, wherein the main shaft is used for accommodating the externally inserted tool head; an elongated slot radially penetrating through the main shaft is arranged on the main shaft; the lock member is accommodated in the elongated slot and can move axially and radially along the main shaft; the jacket is sleeved outside the main shaft and can move axially in relative to the main shaft; the elastic component is sleeved between the main shaft and the jacket to supply the lock member and the jacket with axial elasticity; and the pop-up device is arranged in the main shaft and used for supplying the tool head with axial elasticity. When the tool head is arranged, the lock member moves axially and radially along the main shaft to lock the tool head; and when the tool head is disassembled, the lock member moves radially along the main shaft to release the tool head. An electric tool comprises the chuck.

Description

technical field [0001] The invention relates to a collet and an electric tool using the collet, in particular to a collet with a quick clamp release tool head and a hand-held electric tool such as a hammer, a drill, a screwdriver, and an impact wrench using the collet. tool. Background technique [0002] The traditional collet has a collet spindle, the collet spindle is provided with an axial hole for accommodating the tool head, the radial direction of the collet spindle is provided with a receiving groove for installing locking parts, and the jacket of the collet spindle is provided with a sheath As well as the elastic member that exerts axial elastic force on the sheath. When installing the tool head, it is necessary to operate the sheath with one hand and then insert the tool head with the other hand. When replacing the tool head, it is also necessary to operate the sheath with one hand and then take out the tool head with the other hand. Installing and dismounting the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/06
Inventor 陆子炎
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD