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Tool holding device of machine tool

A technology for tools and machine tools, applied in the field of tool holding devices of machine tools, can solve the problems of wear of the holding arm and tool frame, increase in the number of parts, decrease in the life of the clamping arm, etc., and achieve the effect of preventing wear and reducing the number of parts

Inactive Publication Date: 2014-08-20
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, since the device for holding and holding the tool of the machine tool holds the tool holder through the front end of the stopper finger, the stopper finger and the tool holder are in sliding contact, so wear is likely to occur on both the grip arm and the tool holder.
In addition, the increase in the number of parts due to the provision of locking elements and wear and tear caused by the components constituting the locking elements
Therefore, there are problems such as a reduction in the life of the clamp arm and a reduction in the reliability of the tool replacement operation of the machine tool.

Method used

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  • Tool holding device of machine tool
  • Tool holding device of machine tool
  • Tool holding device of machine tool

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] use figure 1 as well as figure 2 The gripping arm of the first embodiment of the tool gripping device of the machine tool of the present invention will be described.

[0019] The clamping arm 10 includes an arm main body 1 and holding arms 3 respectively arranged on left and right sides of the arm main body 1 through elastic hinge parts 2 , and a gap 9 is formed between the arm main body 1 and the holding arm 3 . In addition, a positioning key 7 for positioning the tool holder 8 is provided near the center of the arm body 1 . On the other hand, gripping rollers 6 are respectively attached to the front end portions of the gripping arms 3 . These gripping rollers 6 are attached to the gripping arm 3 by passing the fixing pin 5 through the hole 4 provided at the front end of the gripping arm 3 and the shaft hole (not shown) provided at the center of the gripping roller.

[0020] The holding arm 3 is biased inwardly by the elastic force of the elastic hinge part 2 arran...

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PUM

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Abstract

A tool holding device of a machine tool, which holds a tool holder on which a tool is mounted, includes a holding member body and a pair of arm members that are provided on the holding member body. Roller members, which are engaged with a holding groove of the tool holder, are mounted on tips of the arm members. In addition, the holding member body, the pair of arm members, and elastic hinge members that connect the holding member body with the arm members are integrally formed.

Description

technical field [0001] The invention relates to a tool holding device of a machine tool, in particular to a tool holding device used in a machining center. Background technique [0002] Generally, a machining center used as a kind of machine tool is equipped with a tool changing device that automatically changes tool holders. Usually, this tool changing device includes a tool box having a plurality of gripper arms for holding a tool holder. Then, when the machining center is in operation, a predetermined tool is selected by the indexing operation of the tool box, the selected tool is moved to directly below the main shaft, and the tool is fitted to the main shaft by the lowering operation of the main shaft. Therefore, the grip arm requires a structure that satisfies both a sufficient holding force for the tool holder and insertion workability or removal workability of the tool holder. [0003] Japanese Patent Application Laid-Open No. 1-289633 discloses an automatic tool c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/157
CPCB23Q3/1552B23Q3/15553Y10T483/1809Y10S483/902B25J15/12
Inventor 村松稔文
Owner FANUC LTD