US3678562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for exchanging tools on machines having reciprocating movement
Assignee: Trumpf SE and Co KG
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Filing: 1970-10-22
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Granted: 1972-07-25
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Expires: 1990-10-22
Abstract
Abstract In a method for exchanging tool sets to a machine having a reciprocating movement and including locking means for the parts of each tool set, the tool parts, in advance of insertion into the machine, are positioned and releasably retained in a tool holder. The tool holder, carrying the parts, is then inserted into the machine and the locking means are operated to lock the tool parts in the machine while the tool parts are still in the holder. The holder is then released from the tool parts and withdrawn from the machine. The holder includes adjustably superposed forked arms, each engageable with a respective tool part, with each arm of the fork having releasable detent means cooperable with the associated tool part. Either the arms of the fork or the releasable detent means may be resilient to provide for ready engagement of the holder with the tool parts and ready disengagement therefrom.
Inventors
- 👤 Berthold Leibinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:50
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/14; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T483/00; Y10T483/10; Y10T483/17; Y10T483/1729
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
103 words
A method for inserting and removing tool sets, each including at least two cooperable tool parts, relative to a machine having a reciprocating movement and including respecTive locking means for the tool parts, said method comprising the steps of positioning the tool parts, in advance of insertion into the machine, in a tool holder; releasably retaining the tool parts in the tool holder; inserting the holder into the machine; operating the locking means to lock the tool parts, while the latter are still in the holder, in the machine; releasing the holder from the tool parts; and withdrawing the holder from the machine.
Claim 2
Independent Claim
103 words
A method for inserting and removing tool sets, each including at least two cooperable tool parts, relative to a machine having a reciprocating movement and including respecTive locking means for the tool parts, said method comprising the steps of positioning the tool parts, in advance of insertion into the machine, in a tool holder; releasably retaining the tool parts in the tool holder; inserting the holder into the machine; operating the locking means to lock the tool parts, while the latter are still in the holder, in the machine; releasing the holder from the tool parts; and withdrawing the holder from the machine.
Claim 3
Dependent Claim
23 words
A method as claimed in claim 1, including additionally positioning a stripper in the tool holder in advance of insertion into the machine.
Claim 4
Dependent Claim
39 words
A method as claimed in claim 1, including automatically releasing the holder from the tool parts when the latter have been inserted in the machine; and automatically operating the locking means to lock the tool parts in the machine.
Claim 5
Dependent Claim
69 words
Apparatus for inserting and removing tool sets, each including at least two cooperable tool parts, relative to a machine having a reciprocating movement and including respective locking means for the tool parts, said apparatus comprising a tool holder including at least two superposed arms, with the uppermost arm being arranged to releasably retain one tool part and the lowermost arm being arranged to releasably retain the other tool part.
Claim 6
Dependent Claim
69 words
Apparatus for inserting and removing tool sets, each including at least two cooperable tool parts, relative to a machine having a reciprocating movement and including respective locking means for the tool parts, said apparatus comprising a tool holder including at least two superposed arms, with the uppermost arm being arranged to releasably retain one tool part and the lowermost arm being arranged to releasably retain the other tool part.
Claim 7
Dependent Claim
48 words
Apparatus as claimed in claim 4, in which said holder comprises three superposed arms, the intermediate arm being arranged to releasably retain a stripper or the like associated with the two-part tool set whose parts are releasably retainable in the upper and lower arms of the tool holder.
Claim 8
Dependent Claim
46 words
Apparatus as claimed in claim 5, in which each upper and lower arm of said tool holder has clamping and locking means for the associated tool part; said intermediate arm having clamping and locking means for a stripper or the like associated with the tool set.
Claim 9
Dependent Claim
51 words
Apparatus as claimed in claim 4, in which each arm of said tool holder is a fork-shaped retaining arm; the prongs of each fork being constructed and arranged to embrace the tool part to be held thereby and being engageable on two substantially plane parallel surfaces of the associated tool part.
Claim 10
Dependent Claim
57 words
Apparatus as claimed in claim 7, in which at least one prong of each fork has detent means releasably engageable with a corresponding detent of the tool part to be carried; at least one of the fork prongs having the detent means or the detent means being movable transverse to the longitudinal extent of the fork prongs.
Claim 11
Dependent Claim
14 words
Apparatus as claimed in claim 8, in which said detent means are ball snaps.
Claim 12
Dependent Claim
28 words
Apparatus as claimed in claim 8, in which said detent means are retaining bolts; at least one retaining bolt being held in position by a spring-loaded pivotal lever.
Claim 13
Dependent Claim
18 words
Apparatus as claimed in claim 8, in which at least one detent means is controlled by auxiliary power.
Claim 14
Dependent Claim
26 words
Apparatus as claimed in claim 11, including control means controlling the auxiliary power; said control means being actuated by said holder upon insertion into the machine.
Claim 15
Dependent Claim
17 words
Apparatus as claimed in claim 4, in which the relative spacing of said retaining arms is adjustable.
Claim 16
Dependent Claim
60 words
Apparatus as claimed in claim 4, in which said tool parts and associated components are formed with at least one gripping surface; said locking means comprising chucking pieces each having a chucking wedge operatively associated therewith; said chucking pieces and said chucking wedges being mounted in said machine for movement in the direction of the tool movement of the machine.
Claim 17
Dependent Claim
29 words
Apparatus as claimed in claim 14, in which said tool parts and the associated components of each set have conical surfaces cooperable with corresponding counter-conical seats of the machine.
Claim 18
Dependent Claim
21 words
Apparatus as claimed in claim 4, including an automatic tool changing device controlling movement of said holder relative to the machine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |