Patent US3824883A successfully refreshed from Google Patents.
US3824883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting head assembly
Assignee: CUSTOM MACHINES Inc
•
Filing: 1973-02-08
•
Granted: 1974-07-23
•
Expires: 1993-02-08
Abstract
Abstract A cutting head assembly especially suited for use on lathes or boring mills for performing facing operations. The cutting head assembly includes a tool carrier in the form of a generally cylindrical body adapted to be mounted on the end face of a conventional spindle with its axis aligned with the axis of rotation of the spindle. A pair of cutters are mounted on slide members carried in a slideway formed transversely in the outer end face of the body. The slides are arranged for movement along parallel chordal lines equally spaced from the axis of the body and are interconnected through rack gears and a pinion gear so that they move simultaneously an equal amount in opposite directions. Hydraulic piston units are carried in the body and are connected with the slides to drive them transversely of the body to move the cutters across the outer end face to perform the required cutting during rotation of the body about its axis.
Inventors
- 👤 J Wloszek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:20
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03489; B23B29/03492; B23B2270/00; B23B2270/02; B23B2270/025; Y; Y10; Y10T; Y10T82/00; Y10T82/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
257 words
A rotary cutting head assembly having radially adjustable cutting tools disposed therein, said assembly comprising: a generally cylindrical tool carrier body having a longitudinal axis and a pair of spaced apart end faces disposed generally normal to said axis, said body being adapted to be rigidly affixed at one end face thereof to a conventional tool spindle assembly, a pair of cylinders in said body extending chordally on each side of said axis in generally parallel relationship with each other; a piston slideably received in each of said cylinders, said pistons each including a pair of generally opposed pressure surfaces; first means for introducing hydraulic power fluid into an opposite end of each cylinder for simultaneously driving said pistons in opposite chordal directions; second means for introducing hydraulic power fluid into the other opposite ends of each cylinder for simultaneously driving said pistons in opposite chordal directions; a pair of slide members each operatively connected to one of said pistons, said slide members being slideably disposed in the other end face and simultaneously movable in opposite chordal directions responsive to movement of said pistons, said slide members each including means for retaining at least one tool member thereon in a desired working position extending outwardly of said other end face, whereby as said pistons are selectively moved between said first and second positions, said tool members are simultaneously moved so as to alter the effective cutting diameter thereof; and, means disposed in said carrier body between said slide members for equalizing relative movement between said slide members.
Claim 2
Dependent Claim
257 words
A rotary cutting head assembly having radially adjustable cutting tools disposed therein, said assembly comprising: a generally cylindrical tool carrier body having a longitudinal axis and a pair of spaced apart end faces disposed generally normal to said axis, said body being adapted to be rigidly affixed at one end face thereof to a conventional tool spindle assembly, a pair of cylinders in said body extending chordally on each side of said axis in generally parallel relationship with each other; a piston slideably received in each of said cylinders, said pistons each including a pair of generally opposed pressure surfaces; first means for introducing hydraulic power fluid into an opposite end of each cylinder for simultaneously driving said pistons in opposite chordal directions; second means for introducing hydraulic power fluid into the other opposite ends of each cylinder for simultaneously driving said pistons in opposite chordal directions; a pair of slide members each operatively connected to one of said pistons, said slide members being slideably disposed in the other end face and simultaneously movable in opposite chordal directions responsive to movement of said pistons, said slide members each including means for retaining at least one tool member thereon in a desired working position extending outwardly of said other end face, whereby as said pistons are selectively moved between said first and second positions, said tool members are simultaneously moved so as to alter the effective cutting diameter thereof; and, means disposed in said carrier body between said slide members for equalizing relative movement between said slide members.
Claim 3
Dependent Claim
49 words
The cutting head assembly as defined in claim 1 further including a slide member guideway in said other end face extending chordally thereacross for receiving said guide members in a side-by-side sliding relationship, said carrier body further including means for maintaining said slide members in position in said guideway.
Claim 4
Dependent Claim
26 words
The cutting head assembly as defined in claim 2 wherein said retaining means are positionable at selected locations along the associated surface of said slide members.
Claim 5
Dependent Claim
41 words
The cutting head assembly as defined in claim 3 wherein said equalizing means comprises a rack gear on each of said slide members and a pinion gear pivotally supported on said carrier body and meshed with each of said rack gears.
Claim 6
Dependent Claim
82 words
The cutting head assembly as defined in claim 5 including an elongated piston rod extending outwardly from each of said pistons and means providing a hydraulic fluid seal between said piston and its associated cylinders for preventing intermixture of fluid introduced into said cylinders by said first and second introducing means, each slide member being operatively connected to its associated piston by a linkage member extending from adjacent the end of said piston rod remote from said piston to said slide member.
Claim 7
Dependent Claim
42 words
The cutting head assembly as defined in claim 5 wherein said maintaining means comprises a cover plate member disposed over said other end of said carrier body, said cover plate including openings for permitting At least said tool members to extend therethrough.
Claim 8
Dependent Claim
218 words
In a rotary cutting head assembly of the type having a tool carrier body including a longitudinal axis with at least a pair of cutting tools disposed on associated slide members so as to extend axially beyond one end face of said body and means for selectively simultaneously moving said slide members in a generally opposite but parallel chordal relationship across at least a portion of said one end face in order to adjust the effective cutting diameter of said tools, the improvement comprising: a pair of elongated cylinders extending chordally through said body on each side of said axis in generally parallel relationship a piston in each of said cylinders, and having a pair of generally opposed pressure surfaces; first means for introducing hydraulic drive fluid into said cylinders against one of said pressure surfaces for selectively driving said pistons toward a first position adjacent one end of said chambers; second means for introducing hydraulic drive fluid into said cylinders against the other of said pressure surfaces on each piston for selectively driving said pistons toward a second position adjacent the other end of said cylinders; and, linkage means operatively interconnecting each of said pistons with its associated slide member in order to selectively effect translational movement of said slide members responsive to movement of said pistons.
Claim 9
Dependent Claim
218 words
In a rotary cutting head assembly of the type having a tool carrier body including a longitudinal axis with at least a pair of cutting tools disposed on associated slide members so as to extend axially beyond one end face of said body and means for selectively simultaneously moving said slide members in a generally opposite but parallel chordal relationship across at least a portion of said one end face in order to adjust the effective cutting diameter of said tools, the improvement comprising: a pair of elongated cylinders extending chordally through said body on each side of said axis in generally parallel relationship a piston in each of said cylinders, and having a pair of generally opposed pressure surfaces; first means for introducing hydraulic drive fluid into said cylinders against one of said pressure surfaces for selectively driving said pistons toward a first position adjacent one end of said chambers; second means for introducing hydraulic drive fluid into said cylinders against the other of said pressure surfaces on each piston for selectively driving said pistons toward a second position adjacent the other end of said cylinders; and, linkage means operatively interconnecting each of said pistons with its associated slide member in order to selectively effect translational movement of said slide members responsive to movement of said pistons.
Claim 10
Dependent Claim
79 words
The improvement as defined in claim 7 wherein each said linkage means includes an elongated piston rod extending outwardly from one of said pressure surfaces and means for providing a hydraulic fluid seal between said piston and its cylinder for preventing intermixture of the power fluid introduced thereinto by said first and second introducing means, said linkage means including a member extending from adjacent the end of each piston rod remote from said piston to the associated slide member.
Claim 11
Dependent Claim
22 words
The improvement as defined in claim 8 further including adjustable means for positioning said tools at selected locations on said slide members.
References Cited (Backward Citations)
US2486977A
Cited
US3489062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |