US3604083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool change device for a machine tool
Assignee: Olivetti SpA
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Filing: 1968-07-29
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Granted: 1971-09-14
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Expires: 1988-07-29
Abstract
Abstract A machine tool with a device for effecting rapid tool changes comprising a frame carrying a rotatable spindle capable of being coupled to a tool through the intermediary of a toolholder to which the tool is secured. A mechanism for lining up the spindle, from whatever position it is in, to a predetermined angular setting in order to allow engagement of the toolholder with the spindle, and translational locking devices inside the spindle operative to provide a coupling to the toolholder to operate the spindle after the tool has been connected thereto, are provided.
Inventors
- 👤 Bruno Antonietto
- 👤 Elio Pagella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:24
CPC Classifications
D; D02; D02J; D02J13/00; D02J13/003; B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/26; B23B31/261; B23B31/263; B23Q; B23Q3/00; B23Q3/155; B23Q3/1552; B23Q3/15526; B23Q3/15534; B23Q3/157; B23Q3/15706; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/20; B23B2260/00; B23B2260/022; B23B2270/00; B23B2270/20; B23Q2003/15527; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T29/5107; Y10T29/5152; Y10T29/5154; Y10T29/5155; Y10T29/5157; Y10T408/00; Y10T408/36; Y10T408/37; Y10T408/60; Y10T409/00; Y10T409/30; Y10T409/30448; Y10T409/306664; Y10T409/306776; Y10T409/309184; Y10T409/309352; Y10T409/309408; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/179; Y10T483/1793; Y10T483/1795
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
197 words
A machine tool arrangement having a plurality of tools and a device having means for rapid selection and application of individual tools to a workpiece according to a predetermined sequence comprising: a rotatable spindle, an individual toolholder associated with each tool in said plurality of tools for mounting the said tool, alignment means operative to align the spindle in a predetermined angular setting with respect to the toolholder of each corresponding tool as the latter is selected for operation on the workpiece according to the predetermined sequence, to provide engagement between the corresponding toolholder and spindle, locking means associated with the spindle to couple said spindle to the toolholder when aligned therewith, and drive means to cause the spindle to drive the selected tool when its corresponding toolholder is coupled to the spindle, said alignment means comprising an actuator operative to advance and retract a cam and a cam follower, the said cam follower being coupled to the spindle and operative in response to engagement with the cam when it is advanced to rotate the spindle to the predetermined angular setting, said actuator comprising a double-acting pressure fluid actuator and the cam comprises a double helical cam.
Claim 2
Dependent Claim
197 words
A machine tool arrangement having a plurality of tools and a device having means for rapid selection and application of individual tools to a workpiece according to a predetermined sequence comprising: a rotatable spindle, an individual toolholder associated with each tool in said plurality of tools for mounting the said tool, alignment means operative to align the spindle in a predetermined angular setting with respect to the toolholder of each corresponding tool as the latter is selected for operation on the workpiece according to the predetermined sequence, to provide engagement between the corresponding toolholder and spindle, locking means associated with the spindle to couple said spindle to the toolholder when aligned therewith, and drive means to cause the spindle to drive the selected tool when its corresponding toolholder is coupled to the spindle, said alignment means comprising an actuator operative to advance and retract a cam and a cam follower, the said cam follower being coupled to the spindle and operative in response to engagement with the cam when it is advanced to rotate the spindle to the predetermined angular setting, said actuator comprising a double-acting pressure fluid actuator and the cam comprises a double helical cam.
Claim 3
Dependent Claim
39 words
The machine tool arrangement recited in claim 1 wherein the locking means comprise key means fixed to the spindle to mate with corresponding key receptacle means defined by the toolholder when the spindle is in the predetermined angular setting.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |