EP0163277A2
Expired / Lapsed
EP
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Automatic tool changer
Assignee: Kitamura Machinery Co Ltd
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Filing: 1985-05-24
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Granted: —
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Expires: 2005-05-24
Abstract
Abstract During the automatic changing of tools between a spindle of a machine tool and a tool magazine, a changing operaton of causing one of a pair of tool changing arms to stand by in the vicinity of the spindle to remove the used tool and another changing operation of causing the other tool changing arm to grip the tool to be used for the next operation on the tool magazine and stand by are performed alternately thereby reducing the tool changing time.
Inventors
- 👤 Koichiro Kitamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 18:53
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/157; B23Q3/15713; Y; Y10; Y10T; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/1748; Y10T483/1752; Y10T483/1779; Y10T483/1783; Y10T483/18; Y10T483/1873; Y10T483/1891
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
82 words
An automatic tool changer for a machine tool comprising: a spindle of said machine tool; a tool magazine including a large number of tool pots arranged at predetermined intervals on an endless chain such that an axis of each of said tool pots is parallel to said spindle; and a pair of arms arranged in the vicinity of said spindle and each being provided with tool gripping means at a forward end thereof so as to separately perform a tool changing operation.
Claim 2
Dependent Claim
82 words
An automatic tool changer for a machine tool comprising: a spindle of said machine tool; a tool magazine including a large number of tool pots arranged at predetermined intervals on an endless chain such that an axis of each of said tool pots is parallel to said spindle; and a pair of arms arranged in the vicinity of said spindle and each being provided with tool gripping means at a forward end thereof so as to separately perform a tool changing operation.
Claim 3
Dependent Claim
75 words
An automatic tool changer accoerding to claim 1, wherein each of said arms includes a slide base movable in a direction perpendicular to the axis of said spindle and said tool pots, respectively, and a rotary plate pivoted to said 'slide base to make at 90-degree turn, and wherein each said arm is supported on said rotary plate and movable in a direction _parallel to the axis of said spindle and said tool pots, respectively.
Claim 4
Dependent Claim
62 words
An automatic tool changer according to claim 1, wherein said tool gripping means of each said arm includes an arcuate fixed support adapted for engagement with an annular groove formed on each of tool-fitted holders to be received by said spindle and said tool pots, respectively, and a tool gripping claw adapted for opening and closing movement relative to said fixed support.
Claim 5
Dependent Claim
53 words
An automatic tool changer according to claim 2, wherein at said 90 0- turn stop position the tool gripping means of each said arm is positioned opposite peerpendicularly to the axis of said spindle or pisitioned to engage with the annular groove of the tool-fitted holders received in one of said tool pots.
References Cited (Backward Citations)
No citation records indexed.
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