Tapered turning lathe
AssigneeHydratight Operations, Inc.
InventorsDonato L. Ricci, Brent Place
Life of this patent
Estimating the term…
Abstract
A radially adjustable drive bracket (126) is affixed to, and rotatable with the drive gear (32), and a radially adjustable support bracket (128) is affixed to, and rotatable with the driven gear (42). A pair of parallel slide rails (30) are coupled at opposite ends to the drive bracket (126) and support bracket (128). A cutting head assembly (28) is slidably mounted on the slide rails (30), wherein a threaded lead screw (124) carrying a traveling nut (134) thereon causes longitudinal displacement of the cutting head assembly (28) along the slide rails (30). A cam arm (140) coupled through a one-way clutch to the lead screw (124) and adapted to be actuated by a tripper assembly (136) mounted so as to engage the cam arm (140) during orbiting movement of the drive and driven gear (32, 42).
Claims11
A journal turning lathe for machining tapered shafts comprising:
- a) a drive housing including a first annular member and an annular drive gear journaled for rotation with respect to the first annular member;
- b) a support housing comprising a second annular member and an annular driven gear journaled for rotation with respect to the second annular member;
- c) a plurality of spacer rails coupled between the drive housing and the support housing for maintaining the drive housing and support housing in parallel, spaced-apart relation with the first annular driving gear facing the annular driven gear;
- d) a motor attached to the drive housing for driving the annular drive gear;
- e) a coupling shaft extending from the drive gear to the driven gear, the coupling shaft having a gear train at opposed ends thereof arranged such that rotational movement of the drive gear is transmitted to the driven gear;
- f) a radially adjustable drive bracket assembly affixed to and rotatable with the annular drive gear and a radially adjustable support bracket assembly affixed to and rotatable with the annular driven gear;
- g) a pair of parallel slide rails coupled at opposed ends to said drive bracket assembly and said support bracket assembly;
- h) a cutting head slidably mounted on the pair of parallel slide rails;
- i) a threaded lead screw carrying a traveling nut thereon, the nut being operatively coupled to the cutting head whereby rotation of the lead screw causes longitudinal displacement of the cutting head along the pair of slide rails;
- and
- j) a cam arm coupled through a one-way clutch to the lead screw and adapted to be actuated by a tripper assembly mounted so as to be engaged by the cam arm during orbiting movement of the drive and driven gears.
A journal turning lathe for machining a work piece having a tapered surface, comprising:
- a) an annular drive housing adapted to be concentrically secured to a work piece at a first location therealong, the drive housing having an annular drive gear journaled for rotation therein;
- b) an annular support housing adapted to be concentrically secured to the work piece at a second location therealong, the support housing having an annular driven gear journaled for rotation therein;
- c) means for maintaining the drive housing and support housing in parallel, spaced-apart relation in surrounding relation to the work piece;
- d) a first slide assembly affixed to and rotatable with the drive gear and a second slide assembly affixed to and rotatable with the annular driven gear;
- e) a pair of parallel glide shafts having opposed ends affixed to the first and second slide assemblies, wherein adjustment of the first and second slide assemblies puts the glide shafts in parallel alignment with the tapered surface;
- f) a cutting head assembly mounted on the glide shafts and slidable therealong;
- and
- g) means for driving the annular drive gear and annular driven gear in synchronous relation.
Dependencies are inferred from the claim text.