Patent
Spindle driver for machine tools
Manuel C. Turchan
- 09 Jul 1987
62
TL;DR: In this article, a spindle driver for a machine tool which is adapted to move the spindle and a tool driven thereby in a helical path with variable pitch and with an orbital radius which may be varied.
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Abstract: A spindle driver for a machine tool which is adapted to move the spindle and a tool driven thereby in a helical path with variable pitch and with an orbital radius which may be varied. A quill (14) is mounted on a support member (12) and driven by a variable pitch drive mechanism in the form of a differential lead screw (26, 28) to provide a selectable ratio of axial motion to rotative motion of the quill. A spindle carrier (16) is rotatably mounted on the quill for rotation about an eccentric axis offset from the quill axis. A spindle motor (18) and a spindle driven thereby is mounted on a carrier with the spindle axis offset from the eccentric rotation axis. The orbital radius for the spindle is adjustable by rotation of the spindle carrier about the eccentric rotation axis to adjust the offset of the spindle axis.
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Citations
Patent
Composite cutting inserts and methods of making the same
X. Daniel Fang,David J. Wills,Prakash K. Mirchandani +2 more
- 17 Aug 2006
TL;DR: In this article, a method for producing a composite article is described, which consists of introducing a first powder metal grade from a feed shoe into a first portion of a cavity in a die and a second powder metal classifier from the feed shoe in a second portion of the cavity, where the first classifier differs from the second classifier in chemical composition or particle size.
98
References
Patent
Positive feed drill
Bohoroquez L,Vindez P +1 more
- 20 Oct 1971
TL;DR: In this article, a portable positive feed drilling device is presented, in which the drill spindle is automatically advanced and retracted, having a work surface sensing mechanism which cooperates with an adjustable spindle stop carried by the spindle for precisely arresting the forward travel of the spindles at a predetermined point relative to the surface of the work.
58
Patent
Portable power tool
Eugene Linsker,Cecil D. Ringer,Ronald C Falter,Robert H. Alexander +3 more
- 31 Oct 1968
TL;DR: In this paper, a portable tool incorporates an air motor which drives a tubular drive shaft splined to a spindle movable axially in a direction parallel to the axis of the motor.
37
Patent
Quill drive mechanism for machine tools
William M. Hoddinott,Richard J. Hreschak +1 more
- 02 Jul 1974
TL;DR: In this paper, a quill advancing and retracting mechanism with a tubular extension having an external helical groove shaped to receive the ball bearings of a power driven ball screw nut is described.
18
Patent
Independent drive sub-spindle mounted for eccentric adjustment in prime spindle
G Allgeyer
- 17 Jan 1972
TL;DR: In this article, a sub-spindle assembly with means integral with the assembly for driving the subspindle is described, where a power supply is connected to the sub spindle driving means from the prime machine spindle by a power conduit means extending from the sub-sindles to the surface portion of the housing which mates with the tool shank receiving means of the prime spindle.
16