US3662611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for driving and feeding elongated tools or the like
Assignee: Tiefbohr Technik GmbH and Co
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Filing: 1968-10-07
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Granted: 1972-05-16
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Expires: 1988-10-07
Abstract
Abstract Apparatus for rotating and feeding elongated material removing tools comprises a pair of carriages which are reciprocable in opposite directions and each of which accommodates a rotary gripper movable into or away from engagement with the peripheral surface of the tool shank. When one of the grippers engages the tool and causes the tool to rotate and to move axially to advance its cutter into or along a workpiece, the gripper of the other carriage is disengaged from the tool and moves in opposite direction. Engagement and disengagement of grippers is controlled automatically and the grippers are rotated in their respective carriages.
Inventors
- 👤 Hans Knoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:43
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/027; B23Q5/22; B23Q5/32; B23Q5/323; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
190 words
Apparatus for feeding elongated bodies, particularly for effecting axial movements of elongated material removing tools in machine tools, comprising a plurality of transporting units each reciprocable lengthwise of an elongated body and each having gripper means movable into and away from motion transmitting engagement with the body; reciprocating means for reciprocating said units so that one of said units moves from a first toward a second position while another of said units moves from a second toward a first position, said reciprocating means comprising a plurality of reciprocable carriages, one for each of said transporting units, rotary cam means, and follower means provided on said carriages and cooperating with said cam means to effect reciprocatory movements of the respective carriages, the gripper means of each of said units being rotatably mounted in the respective carriages; control means for moving said gripper means into motion transmitting engagement with the elongated body, at least while the corresponding units move from said first toward said second positions thereof; and drive means for rotating said gripper means so that each of said gripper means rotates the elongated body during said motion transmitting engagement therewith.
Claim 2
Dependent Claim
190 words
Apparatus for feeding elongated bodies, particularly for effecting axial movements of elongated material removing tools in machine tools, comprising a plurality of transporting units each reciprocable lengthwise of an elongated body and each having gripper means movable into and away from motion transmitting engagement with the body; reciprocating means for reciprocating said units so that one of said units moves from a first toward a second position while another of said units moves from a second toward a first position, said reciprocating means comprising a plurality of reciprocable carriages, one for each of said transporting units, rotary cam means, and follower means provided on said carriages and cooperating with said cam means to effect reciprocatory movements of the respective carriages, the gripper means of each of said units being rotatably mounted in the respective carriages; control means for moving said gripper means into motion transmitting engagement with the elongated body, at least while the corresponding units move from said first toward said second positions thereof; and drive means for rotating said gripper means so that each of said gripper means rotates the elongated body during said motion transmitting engagement therewith.
Claim 3
Dependent Claim
46 words
Apparatus as defined in claim 1, wherein each of said units is arranged to return to first position before the other unit reaches said second position thereof and wherein said units thereupon move simultaneously toward their second positions until the one unit reaches such second position.
Claim 4
Dependent Claim
26 words
Apparatus as defined in claim 1, further comprising a housing and guide means mounted in said housing, said carriages being reciprocably supported by said guide means.
Claim 5
Dependent Claim
30 words
Apparatus as defined in claim 3, wherein said drive means comprises a rotary output shaft mounted in said housing in parallelism with said guide means and with the elongated body.
Claim 6
Dependent Claim
86 words
Apparatus as defined in claim 1, wherein each of said gripper means is contractible and expansible radially into and away from motion transmitting engagement with the elongated body and wherein each of said units further comprises a holder mounted in the respective carriage and accommodating the corresponding gripper means, said control means comprising a plurality of piston meAns each movable in one of said holders to thereby effect expansion or contraction of the respective gripper means, and means for regulating the movements of said piston means.
Claim 7
Dependent Claim
37 words
Apparatus as defined in claim 5, wherein each of said holders is rotatable in the respective carriage and wherein said gripper means are rotated by said drive means through the intermediary of said pistons and said holders.
Claim 8
Dependent Claim
13 words
Apparatus as defined in claim 1, wherein said units are of identical construction.
Claim 9
Dependent Claim
17 words
Apparatus as defined in claim 7, wherein said units are arranged mirror symmetrically relative to each other.
Claim 10
Dependent Claim
60 words
Apparatus as defined in claim 4, wherein each of said units further comprises a holder for the respective gripper means, each of said holders being rotatable in the respective carriage and said drive means further comprising means for rotating said gripper means for rotating said gripper means by way of said holders in response to rotation of said output shaft.
Claim 11
Dependent Claim
33 words
Apparatus as defined in claim 9, wherein each of said holders has an extension projecting from the respective carriage and wherein the means for rotating said holders comprises gears provided on said extensions.
Claim 12
Dependent Claim
18 words
Apparatus as defined in claim 10, wherein said gears are located in a central portion of said housing.
Claim 13
Dependent Claim
34 words
Apparatus as defined in claim 1, wherein said control means comprises actuating means for effecting movements of said gripper means into and from engagement with the elongated body in predetermined positions of said carriages.
Claim 14
Dependent Claim
13 words
Apparatus as defined in claim 12, wherein said actuating means comprises limit switches.
Claim 15
Dependent Claim
136 words
Apparatus for feeding elongated bodies, particularly for effecting axial movements of elongated material removing tools in machine tools, comprising a plurality of transporting units each reciprocable lengthwise of an elongated body and each having gripper means movable into and away from motion transmitting engagement with the body; reciprocating means for reciprocating said units so that one of said units moves from a first toward a second position while another of said units moves from a second toward a first position; control means for moving said gripper means into motion transmitting engagement with the elongated body, at least while the corresponding units move from said first toward said second positions thereof; and resetting means for returning the elongated body to a starting position, said resetting means comprising a flexible element which is connected to the elongated body.
Claim 16
Dependent Claim
136 words
Apparatus for feeding elongated bodies, particularly for effecting axial movements of elongated material removing tools in machine tools, comprising a plurality of transporting units each reciprocable lengthwise of an elongated body and each having gripper means movable into and away from motion transmitting engagement with the body; reciprocating means for reciprocating said units so that one of said units moves from a first toward a second position while another of said units moves from a second toward a first position; control means for moving said gripper means into motion transmitting engagement with the elongated body, at least while the corresponding units move from said first toward said second positions thereof; and resetting means for returning the elongated body to a starting position, said resetting means comprising a flexible element which is connected to the elongated body.
Claim 17
Dependent Claim
27 words
Apparatus as defined in claim 14, wherein said resetting means is arranged to return the elongated body by way of said reciprocating means and said control means.
Claim 18
Dependent Claim
58 words
Apparatus as defined in claim 15, wherein said reciprocating means comprises a carriage for each of said units and means for reciprocating said carriages, including a rotary camshaft, cam means provided on said cam shaft and follower means cooperating with said cam means, said resetting means comprising motion transmitting levers connected with said carriages and supporting follower means.
Claim 19
Dependent Claim
165 words
Apparatus for feeding elongated bodies, particularly for effecting axial movements of elongated material removing tools in machine tools, comprising a plurality of transporting units each reciprocable lengthwise of an elongated body and each having gripper means movable into and away from motion transmitting engagement with the body; reciprocating means for reciprocating said units so that one of said units moves from a first to a second position while another of said units moves from a second toward a first position; control means for moving said gripper means into motion transmitting engagement with the elongated body, at least while the corresponding units move from said first toward said second positions thereof; and resetting means for returning the elongated body to a starting position, said resetting means comprising driven advancing rollers arranged to engage the peripheral surface of the elongated body and to thus advance the body in a direction corresponding to the direction of movement of said units from said second toward said first positions thereof.
Claim 20
Dependent Claim
165 words
Apparatus for feeding elongated bodies, particularly for effecting axial movements of elongated material removing tools in machine tools, comprising a plurality of transporting units each reciprocable lengthwise of an elongated body and each having gripper means movable into and away from motion transmitting engagement with the body; reciprocating means for reciprocating said units so that one of said units moves from a first to a second position while another of said units moves from a second toward a first position; control means for moving said gripper means into motion transmitting engagement with the elongated body, at least while the corresponding units move from said first toward said second positions thereof; and resetting means for returning the elongated body to a starting position, said resetting means comprising driven advancing rollers arranged to engage the peripheral surface of the elongated body and to thus advance the body in a direction corresponding to the direction of movement of said units from said second toward said first positions thereof.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |