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Clamping head

A collet and clamping technology, which is applied in the field of collets with the function of quick clamping and releasing the working head, can solve the problems of complex structure, high cost, unsuitable for mass production and so on, and achieve the effect of convenient use and simple structure

Active Publication Date: 2012-11-14
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 of the working head, it is not suitable for mass production due to its complex structure and high cost.

Method used

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Examples

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Embodiment Construction

[0047] refer to figure 1 with figure 2 , the present invention discloses a collet 10 for quickly clamping and releasing a working head 9. The collet 10 can be installed on power tools such as hammers, drills, screwdrivers, and impact wrenches. In a preferred embodiment of the present invention, the collet 10 includes a main shaft 2, a sheath 3 sleeved outside the main shaft 2, a locking member 4 for locking the working head 9, and a biasing force installed between the sheath 3 and the main shaft. Part 5, and the limiting part 6 installed on the main shaft 2. The input part 28 of the main shaft 2 is connected to a drive shaft (not shown in the figure) so as to drive the main shaft to rotate or impact. The collet can clamp different working heads, so that the power tool can realize different functions, such as clamping the fastening head when realizing the function of impact wrench, and clamping the screwdriver head when realizing the function of screwdriver, etc.

[0048] T...

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PUM

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Abstract

The invention discloses a clamping head which is used for accommodating and clamping a working head which is inserted externally. The clamping head comprises a main shaft, retaining members, a protecting sleeve, a bias member and a limiting member, wherein the main shaft is provided with an inner cavity which accommodates the working head and extends along the axial direction of the main shaft, and an accommodating slot which is radially communicated with the inner cavity; the retaining members are accommodated in the accommodating slot and can move along the radial direction of the main shaft; the protecting sleeve is sleeved outside the main shaft and can move between a first position where the working head is retained and a second position where the retaining members are released to release the working head; the bias member is arranged between the main shaft and the protecting sleeve for supplying the protecting sleeve a bias force which enables the protecting sleeve to return to the first position; an elongated slot which is communicated with the inner cavity and the accommodating slot is arranged on the main shaft along the axial direction; the limiting member keeps the retaining members at a working head releasing position when the protecting sleeve moves to the second position, and the limiting member is partly accommodated in the elongated slot and can move along the elongated slot. The clamping head disclosed by the invention can quickly clamp and release the working head, and is simple in structure and easy to operate.

Description

technical field [0001] The invention relates to a collet, in particular to a collet with the functions of quickly clamping and releasing the working head, which is used on power tools such as hammers, drills, screwdrivers and impact wrenches. Background technique [0002] The traditional collet has a collet main shaft, on which there is an axial hole for accommodating the working head, and a receiving groove is provided in the radial direction of the collet main shaft, which is used to install locking parts, and a sheath is provided on the outer surface of the collet main shaft As well as the elastic member that exerts axial elastic force on the sheath, when installing the working head, it is necessary to operate the sheath with one hand and then insert the working head with the other hand. When replacing the working head, it is also necessary to operate the sheath with one hand and then take out the working head with the other hand. Installing and dismounting the working he...

Claims

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Application Information

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IPC IPC(8): B23B31/107B23B31/06
Inventor 余锋
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD