US3757637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the automatic replacement and adjustment of tool carriers, more particularly angular milling heads on the milling support of a machine tool
Assignee: Individual
•
Filing: 1971-09-13
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Granted: 1973-09-11
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Expires: 1991-09-13
Abstract
Abstract A device for the automatic replacement and adjustment of tool carriers, such as angular milling heads on a milling support on a machine tool. A drawbar is axially slidably and rotatably mounted in the milling spindle. A base plate is provided for closing the milling support at the free end of the milling spindle. A tube is connected to the tool carrier and is secured to the free end of the drawbar. A fixing flange is provided on the tool carrier and extends parallel to the base plate. A fixing arrangement is provided between the fixing flange and the base plate for fixing the tool carrier in a predetermined angular position relative to the milling support. A plurality of clamping arrangements are mounted on the base plate and cooperate with the fixing flange.
Inventors
- 👤 E Eich
- 👤 W Muller
- 👤 B Fritsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:33
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0063; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/26; B23B31/261; B23B31/266; B23Q16/00; B23Q16/02; B23Q16/028; B23Q16/04; B23Q16/06; B23Q16/065; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/309296; Y10T409/309352; Y10T409/309408; Y10T409/309464; Y10T409/309576; Y10T409/309912
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
186 words
In combination with a machine tool support having a rotatable spindle, an axially movable and rotatably movable drawbar mounted on said spindle and adapted for movement relative thereto between extended and retracted positions, a base plate on said support extending generally perpendicular to the axis of rotation of said spindle, tool carrier means having a tool thereon and connecting means for connecting said tool carrier means to said drawbar for movement toward and away from said base plate in response to extending and retracting movements of said drawbar, said tool carrier means having a mounting flange thereon parallel to said base plate when said connecting means couples said tool carrier means to said drawbar, adjusting and clamping apparatus, comprising: indexing means for selectively fixing the position of said mounting flange relative to said base plate; rotary driven means for driving said tool carrier means and said mounting flange for rotation about an axis parallel to said axis of rotation of said spindle between said selectively fixed positions; and clamping means for clamping said mounting flange to said base plate in one of said selectively fixed positions.
Claim 2
Dependent Claim
186 words
In combination with a machine tool support having a rotatable spindle, an axially movable and rotatably movable drawbar mounted on said spindle and adapted for movement relative thereto between extended and retracted positions, a base plate on said support extending generally perpendicular to the axis of rotation of said spindle, tool carrier means having a tool thereon and connecting means for connecting said tool carrier means to said drawbar for movement toward and away from said base plate in response to extending and retracting movements of said drawbar, said tool carrier means having a mounting flange thereon parallel to said base plate when said connecting means couples said tool carrier means to said drawbar, adjusting and clamping apparatus, comprising: indexing means for selectively fixing the position of said mounting flange relative to said base plate; rotary driven means for driving said tool carrier means and said mounting flange for rotation about an axis parallel to said axis of rotation of said spindle between said selectively fixed positions; and clamping means for clamping said mounting flange to said base plate in one of said selectively fixed positions.
Claim 3
Dependent Claim
47 words
The combination according to claim 1, wherein said indexing means includes indexing surfaces on said mounting flange and stop means cooperable with said indexing surfaces, said stop means comprising driven stop members supported for movement into and out of the path of movement of said indexing surfaces.
Claim 4
Dependent Claim
45 words
The combination according to claim 2, wherein said rotary driven means includes a driven pinion rotatable about an axis parallel to said axis of rotation of said spindle, gear teeTh on said mounting flange engageable with said driven pinion to drive said tool carrier means.
Claim 5
Dependent Claim
19 words
The combination according to claim 3, including means for supporting said driven pinion for movement in an axial direction.
Claim 6
Dependent Claim
37 words
The combination according to claim 3, wherein said driven pinion includes an adjusting motor having an output shaft, an electromagnetic clutch secured to said output shaft and a brake for controlling the output from said electromagnetic clutch.
Claim 7
Dependent Claim
110 words
The combination according to claim 3, wherein said clamping means comprises at least one clamping bolt supported for movement parallel to said axis of rotation of said spindle, said clamping bolt having an enlarged head thereon, said mounting flange having an annular inverted T-shaped groove therein having a vertical stem portion and a horizontal crossbar portion and at least one enlarged portion adapted to receive said enlarged head on said bolt so that said enlarged head is movable beneath the stem portion to said crossbar portion of said T-shaped groove and subsequently out of communication with said enlarged portion of said slot upon a rotary movement of said mounting flange.
Claim 8
Dependent Claim
31 words
The combination according to claim 5, including limit switch means for controlling the operation of said adjusting motor in relation to the position of said mounting flange to said base plate.
Claim 9
Dependent Claim
41 words
The combination according to claim 6, wherein said connecting means comprises first thread means on said drawbar and second thread means on said tool carrier means cooperable with said first thread means for coupling said tool carrier means to said support.
Claim 10
Dependent Claim
31 words
The combination according to claim 8, wherein said tool carrier means includes a rotatably supported drive shaft for driving said tool; wherein said second thread means is on said drive shaft.
Claim 11
Dependent Claim
22 words
The combination according to claim 9, including centering means for centering said mounting flange relative to said base plate and said spindle.
Claim 12
Dependent Claim
67 words
The combination according to claim 9, wherein said spindle is hollow; and wherein said drive shaft has a centering sleeve mounted thereon for axial movement against the force of a spring, said centering sleeve having an outer conical surface thereon, said spindle having means defining a receiving cone on the interior thereof and is adapted to receive said centering sleeve upon an axial movement of said drawbar.
Claim 13
Dependent Claim
73 words
The combination according to claim 10, wherein said centering means comprises a centering ring on said mounting flange concentrically arranged about the axis of rotation of said drive shaft and at least three ball elements mounted on said base plate concentrically about the axis of said spindle, said ball elements being movable radially to accommodate said centering ring therebetween to thereby center same with respect to said axis of rotation of said spindle.
Claim 14
Dependent Claim
24 words
The combination according to claim 10, wherein said gear teeth are provided on said centering ring which is fixedly connected to said mounting flange.
Claim 15
Dependent Claim
44 words
The combination according to claim 2, wherein said indexing surfaces are defined by the laterally opposite sides of said projections extending radially outwardly from said mounting flange; and wherein said stop members are adapted to engage said indexing surfaces to clamp said projections therebetween.
Claim 16
Dependent Claim
73 words
The combination according to claim 14, wherein at least one of said stop members includes an axially movable and rotatable first stop bolt and axially fixed and rotatable second stop bolt, said first and second stop bolts including projections thereon for engaging said indexing surfaces, said projection on said axially movable stop bolt being adapted to engage a projection on mounting flange to push same against the projection on said second stop bolt.
Claim 17
Dependent Claim
82 words
The combination according to claim 15, wherein said second bolt has a plurality of axially offset surfaces thereon facing said first stop bolt, a plurality of limit switch means equal in number to said offset surfaceS; a switch arm secured to and rotatable with said second stop bolt and adapted to cooperate and actuate said limit switch means; first drive means for rotating said second stop bolt and being controlled by said limit switch means operable in response to said switch arm.
Claim 18
Dependent Claim
55 words
The combination according to claim 16, wherein said second stop bolt has a pinion thereon and rotatable therewith; wherein said first drive means comprises a fluid operated piston having a rack thereon engageable with said pinion and adapted to rotate said pinion upon an application of a fluid pressure to one side of said piston.
Claim 19
Dependent Claim
59 words
The combination according to claim 17, wherein said first stop bolt has a pinion thereon and rotatable therewith; and including second drive means comprising a fluid operated second piston having a rack thereon engageable with said pinion on said first stop bolt to rotate same upon an application of a fluid pressure to one side of said second piston.
References Cited (Backward Citations)
US2307222A
Cited
US2718820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |