US3842712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool with automatic tool changing means
Assignee: Ex-Cell-O Corp
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Filing: 1973-04-11
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Granted: 1974-10-22
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Expires: 1993-04-11
Abstract
Abstract A machine tool having an automatic tool changing means and which is constructed and arranged to carry out a variety of machining operations, such as milling, drilling, boring, tapping and the like. The machine includes a rotary, 4-position index work table which is carried on two movable, perpendicularly disposed slide members to provide movement of the work table along ''''X'''' and ''''Z'''' axes. A tool spindle assembly is slidably mounted on a ''''Y'''' axis between two column members with a tool spindle, spindle drive motor, gear box, tachometer and resolver mounted in axial alignment with each other for movement as a unit along said Y axis. A tool storage conveyor is disposed horizontally on said column members above the tool spindle assembly and for moving tools into a tool changing position above the tool spindle. A tool changer means is mounted between the column members and between the tool spindle assembly and the tool storage conveyor for automatically transferring tools directly between the tool storage conveyor and the tool spindle.
Inventors
- 👤 D Bondie
- 👤 R Sutton
- 👤 J Lewelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:26
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/1552; Y; Y10; Y10T; Y10T408/00; Y10T408/94; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T409/309408; Y10T409/309464
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
258 words
In a machine tool, the combination comprising: a. a machine base; b. a pair of laterally spaced columns mounted on said base; c. a tool spindle assembly including: 1. a rotatable, horizontally disposed tool spindle movably mounted on vertical ways on said columns; a. said tool spindle is a tubular spindle in which is rotatively mounted a draw bar provided with a draw bolt on its front end for clamping a tool in the spindle; 2. an orbit fluid motor for rotating said draw bar; 3. a splined coupling means for connecting the orbit fluid motor to said draw bar; 4. an electric clutch operatively connecting said orbit fluid motor to said splined coupling means; 5. a spring means for normally biasing said draw bar forwardly toward an operative engagement with a tool holder mounted in said tool spindle; 6. said spindle assembly further includes a pressure operated switch means operatively connected to said orbit fluid motor for de-energizing said electric clutch when the fluid pressure in said motor rises to a predetermined level when the draw bar is rotated for clamping a tool holder in the tool spindle; 7. a gear drive means operatively connected to said tool spindle; 8. a drive motor operatively connected to said gear drive means; 9. a spindle position sensing means operatively connected to said tool spindle; and d. power drive means operatively connected to said spindle for moving said spindle assembly along said vertical ways, said gear drive means, drive motor and spindle position sensing means being movable as a unit.
Claim 2
Dependent Claim
258 words
In a machine tool, the combination comprising: a. a machine base; b. a pair of laterally spaced columns mounted on said base; c. a tool spindle assembly including: 1. a rotatable, horizontally disposed tool spindle movably mounted on vertical ways on said columns; a. said tool spindle is a tubular spindle in which is rotatively mounted a draw bar provided with a draw bolt on its front end for clamping a tool in the spindle; 2. an orbit fluid motor for rotating said draw bar; 3. a splined coupling means for connecting the orbit fluid motor to said draw bar; 4. an electric clutch operatively connecting said orbit fluid motor to said splined coupling means; 5. a spring means for normally biasing said draw bar forwardly toward an operative engagement with a tool holder mounted in said tool spindle; 6. said spindle assembly further includes a pressure operated switch means operatively connected to said orbit fluid motor for de-energizing said electric clutch when the fluid pressure in said motor rises to a predetermined level when the draw bar is rotated for clamping a tool holder in the tool spindle; 7. a gear drive means operatively connected to said tool spindle; 8. a drive motor operatively connected to said gear drive means; 9. a spindle position sensing means operatively connected to said tool spindle; and d. power drive means operatively connected to said spindle for moving said spindle assembly along said vertical ways, said gear drive means, drive motor and spindle position sensing means being movable as a unit.
Claim 3
Dependent Claim
9 words
an orbit fluid motor for rotating said draw bar;
Claim 4
Dependent Claim
9 words
an orbit fluid motor for rotating said draw bar;
Claim 5
Dependent Claim
14 words
a splined coupling means for connecting the orbit fluid motor to said draw bar;
Claim 6
Dependent Claim
14 words
a splined coupling means for connecting the orbit fluid motor to said draw bar;
Claim 7
Dependent Claim
14 words
an electric clutch operatively connecting said orbit fluid motor to said splined coupling means;
Claim 8
Dependent Claim
14 words
an electric clutch operatively connecting said orbit fluid motor to said splined coupling means;
Claim 9
Dependent Claim
23 words
a spring means for normally biasing said draw bar forwardly toward an operative engagement with a tool holder mounted in said tool spindle;
Claim 10
Dependent Claim
23 words
a spring means for normally biasing said draw bar forwardly toward an operative engagement with a tool holder mounted in said tool spindle;
Claim 11
Dependent Claim
49 words
said spindle assembly further includes a pressure operated switch means operatively connected to said orbit fluid motor for de-energizing said electric clutch when the fluid pressure in said motor rises to a predetermined level when the draw bar is rotated for clamping a tool holder in the tool spindle;
Claim 12
Dependent Claim
49 words
said spindle assembly further includes a pressure operated switch means operatively connected to said orbit fluid motor for de-energizing said electric clutch when the fluid pressure in said motor rises to a predetermined level when the draw bar is rotated for clamping a tool holder in the tool spindle;
Claim 13
Dependent Claim
10 words
a gear drive means operatively connected to said tool spindle;
Claim 14
Dependent Claim
10 words
a gear drive means operatively connected to said tool spindle;
Claim 15
Dependent Claim
10 words
a drive motor operatively connected to said gear drive means;
Claim 16
Dependent Claim
10 words
a drive motor operatively connected to said gear drive means;
Claim 17
Dependent Claim
46 words
a spindle position sensing means operatively connected to said tool spindle; and d. power drive means operatively connected to said spindle for moving said spindle assembly along said vertical ways, said gear drive means, drive motor and spindle position sensing means being movable as a unit.
Claim 18
Dependent Claim
46 words
a spindle position sensing means operatively connected to said tool spindle; and d. power drive means operatively connected to said spindle for moving said spindle assembly along said vertical ways, said gear drive means, drive motor and spindle position sensing means being movable as a unit.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |