US3732759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston turning lathe
Assignee: Individual
•
Filing: 1971-10-05
•
Granted: 1973-05-15
•
Expires: 1991-10-05
Abstract
Abstract A piston-turning lathe comprising a head carrying the work spindle and a tool head provided with cutting tools for preliminary and finish machining of pistons during rotation of the spindle. The lathe also has a drive for synchronous rotation of the tool head spindle and work head spindle and devices for displacing the work head spindle axis in two mutually perpendicular planes relative to the axis of the tool head spindle, said spindles being installed with a provision for turning their axes in the direction of working feed while the work head spindle is, additionally, installed with a provision for inclining its axis in the same direction, and there is also a means for mutual relative turning of the work head and tool head spindles by the mechanism for setting the tool holders with the cutting tools for preliminary and finish machining.
Inventors
- 👤 I Fedorenko
- 👤 F Gurin
- 👤 V Smelyansky
- 👤 A Voronin
- 👤 A Kuranov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:10
CPC Classifications
B; B23; B23Q; B23Q27/00; B23Q27/003; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/101; B23Q35/102; Y; Y10; Y10T; Y10T82/00; Y10T82/13; Y10T82/135
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
209 words
A piston-turning lathe comprising: a bed; a moveable table mounted on said bed and provided with a head carrying a work spindle; a bridge installed on said bed; a tool head installed on said bridge and provided with a spindle for cutting tools for the preliminary and finish machining of pistons during spindle rotation; a longitudinal master form accommodated inside said tool head spindle and contacting the mechanism for setting the tool holders with said cutting tools for preliminary and finish machining; a means for moving said table along said bed; a means for synchronous unidirectional rotation of said tool head and work head spindles at twice the angular speed of said tool spindle with relation to said work spindle; means for displacing in two mutually perpendicular planes the axis of said work head spindle relative to the axis of said tool head spindle, means for turning the axes of said spindles in the direction of working feed, means foR inclining the axis of said work head spindle in the same direction; a means for mutual relative turning of said work head and tool head spindles upon operation of said mechanism for setting the tool holders with the cutting tools for the preliminary and finish machining of the pistons.
Claim 2
Dependent Claim
209 words
A piston-turning lathe comprising: a bed; a moveable table mounted on said bed and provided with a head carrying a work spindle; a bridge installed on said bed; a tool head installed on said bridge and provided with a spindle for cutting tools for the preliminary and finish machining of pistons during spindle rotation; a longitudinal master form accommodated inside said tool head spindle and contacting the mechanism for setting the tool holders with said cutting tools for preliminary and finish machining; a means for moving said table along said bed; a means for synchronous unidirectional rotation of said tool head and work head spindles at twice the angular speed of said tool spindle with relation to said work spindle; means for displacing in two mutually perpendicular planes the axis of said work head spindle relative to the axis of said tool head spindle, means for turning the axes of said spindles in the direction of working feed, means foR inclining the axis of said work head spindle in the same direction; a means for mutual relative turning of said work head and tool head spindles upon operation of said mechanism for setting the tool holders with the cutting tools for the preliminary and finish machining of the pistons.
Claim 3
Dependent Claim
70 words
A lathe according to claim 1 wherein said means for synchronous unidirectional rotation of said tool head and work head spindles is made in the form of a gear-and-universal-joint drive incorporating a gear drive to the shaft of said tool head with a speed ratio of 1:2 and a gear drive to said work head spindle with a speed ratio of 1:1, said drives being connected with a universal-joint drive.
Claim 4
Dependent Claim
48 words
A lathe according to claim 1 wherein said devices for displacing the work head spindle axis relative to the tool head spindle axis in two mutually perpendicular planes are made in the form of screw-and-nut pairs which act in these planes on the body of said work head.
Claim 5
Dependent Claim
82 words
A lathe according to claim 1 wherein the axis of said tool head spindle is turned relative to the direction of feed by said bridge provided with a pin on which said tool head is installed in such a manner that the axis of said pin passes through the point of intersection of the axis of said tool head spindle with the plane passing through the tops of said cutting tools of the tool head, perpendicularly to the axis of its spindle.
Claim 6
Dependent Claim
50 words
A lathe according to claim 1 wherein means for inclining the axis of said work head spindle in the direction of working feed in the plane perpendicular to the plane of turning of said tool head spindle is a device in the form of a sine table with inclined plates.
Claim 7
Dependent Claim
62 words
A lathe according to claim 1 wherein means for turning the axis of said work head spindle in the direction of working feed in the plane coinciding with or parallel to the plane of turning said tool head spindle is a swivelling carriage with a hole, said hole being slipped on the pin secured on the upper plate of said sine table.
Claim 8
Dependent Claim
76 words
A lathe according to claim 1 wherein the means for mutual relative turning of said work head and tool head spindles by said mechanism for setting the tool holders is made in the form of a vane cylinder whose body carries a gear of the gear drive of said tool head while the body proper is installed with a provision for turning on the drive shaft with which the vanes of said cylinder are rigidly connected.
References Cited (Backward Citations)
US2720806A
Cited
US3391587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |