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Author

Wenyuan Shao

Bio: Wenyuan Shao is an academic researcher. The author has contributed to research in topics: Lapping & Grinding. The author has an hindex of 1, co-authored 1 publications receiving 66 citations.

Papers
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Patent
06 Feb 1996
TL;DR: In this article, a multifunction, compact machining center has a work spindle which can rotate at high speed, or controlled by a C axis servo driver, and a frame-shaped tool magazine, which is composed of a standing part and a rotatable part.
Abstract: A multifunction, compact machining center has a work spindle which can rotate at high speed, or controlled by a C axis servo driver, and a frame-shaped tool magazine, which is composed of a standing part and a rotatable part. Arranged on the standing part are enough internal and external turning tools to complete all turning processes on one workpiece. Driven tools are held on the rotatable part to do drilling, boring, milling, gear hobbing, grinding, lapping etc. on the same workpiece at arbitrary angles. Additionally, work units for quenching, laser machining, gear shaping, bevel gear cutting, measuring, loading and unloading can also be employed on the tool magazine. By means of movements of the tool magazine relative to the work spindle in the plane perpendicular to the Z axis, each cutting tool or working unit can be put into the working area of the workpiece sequentially so as to complete all machining, measuring, loading and unloading. This invention replaces several machining centers or an FMS, and advantageously, this compact machining center avoids accuracy loss and waste of time caused by repeated clamping.

66 citations


Cited by
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Patent
17 Sep 1997
TL;DR: In this article, a numeric-control machine tool for turning and hobbing a mechanical part is presented, comprising of a main mandrel (2), which is provided with grip means for a part (30) and can be rotated about its own axis (2a), a first carriage (4), which supports a turret tool post (5), and a second carriage (6), supporting a gear hobbing tool head (7).
Abstract: A numeric-control machine tool for turning and hobbing mechanical parts, comprising: a main mandrel (2), which is provided with grip means for a mechanical part (30) and can be rotated about its own axis (2a); a first carriage (4), which supports a turret tool post (5) for turning and/or milling and/or drilling; and a second carriage (6), which supports a gear hobbing tool head (7). The first and second carriages (4,6) can move on command, in a controlled manner, with respect to the main mandrel (2) in order to selectively move the tools installed on the turret tool post (5) and the hobbing tools so that they machine the part (30) supported by the main mandrel (2).

39 citations

Patent
28 Aug 2001
TL;DR: In this paper, a turning device (lathe tool) 30 is provided to perform a turning operation on a workpiece and a gear cutting device 40 is provided for gear cutting on the workpiece.
Abstract: A headstock 10 having a chuck 12 and a tailstock 20 having a shaft 21 are mounted on a bed 1 and can move with respect to each other in the direction of the Z-axis, A carriage 50 is slidably mounted on the bad 1 and can move in the Z-axis direction with respect to the rotational axis of a spindle 11. A turning device (lathe tool) 30 is provided to perform a turning operation on a workpiece and a gear cutting device 40 is provided to perform a gear cutting on the workpiece. The turning device 30 and the gear cutting device are preferably slidably mounted on the carriage 50 in a side-by-side relationship. The turning device 30 and the gear cutting device 40 may have respective traverse slide bases 31 and 41. The traverse slide bases 31 and 41 are mounted on the carriage 50 and can move independently in the direction of the X-axis perpendicular to the axis of the spindle 11, i.e. in a traverse sliding direction.

33 citations

Patent
17 May 1999
TL;DR: In this paper, a laser-machining operation is carried out before the cutting work in the processing cycle, a zero-offset being provided between the laser machining and cutting work, correcting any system errors with the help of a computer.
Abstract: Laser machining is often carried out using special machines or apparatus, with the workpieces having to be finished afterwards using appropriately equipped cutting machine tools According to the invention, a laser beam (5) is supplied on the headstock (17) of a machine tool (13), by means of a beam control tube (12) Said beam radiates into a focussing lens (35) at an articulation point (D) Said articulation point (D) is precisely guided and held in place in a centring cone (36) with its focussing lens (35) located underneath The laser-machining head can be removed from the headstock (17) by means of a swivel mechanism and the machine (13) can carry out cutting operations in the usual way The laser-machining operations are carried out before the cutting work in the processing cycle, a zero-offset being provided between the laser machining and the cutting work, correcting any system errors with the help of a computer

32 citations

Patent
06 Sep 2006
TL;DR: In this article, a robotic manipulator is used to grasp a work piece and locate the work piece in a machining operation, such as, an EDM machining operations.
Abstract: Automated handling systems and methods for using the handling systems for handling a work piece in a machining process, for example, an electrical discharge machining (EDM) process, are provided. The handling systems include a robotic manipulator adapted to grasp a work piece and locate the work piece in a machining operation, such as, an EDM machining operation. The robotic manipulator includes tooling having gripping devices adapted to grasp and position the work piece so that the work piece can be transferred and positioned, for example, precisely positioned, whereby accurate machining of the work piece can be practiced with little or no custom tooling. Methods for handling a work piece are also disclosed.

28 citations

Patent
24 Aug 2006
TL;DR: In this article, a rotary table for a material processing machine such as a vertical milling machine utilizes direct drive motor(s) to precisely angularly position a work piece along one or more pivotal axes.
Abstract: A rotary table for a material processing machine such as a vertical milling machine utilizes direct drive motor(s) to precisely angularly position a work piece along one or more pivotal axes. The direct drive motor(s) are thermally insulated from the remainder of the machine to limit misaligning thermal expansion of the components of the machine. The motors may be symmetrically attached to their respective supports such that thermal expansion/contraction of the motor and surrounding components occurs symmetrically with respect to the motor to limit misalignment of the motor's rotational axis. A motor may mount to its respective support only at a first axial end thereof such that thermal expansion of a second axial end of the motor does not adversely shift the position of the first end. Axially narrow clamps selectively secure the rotors of the motors in desired positions.

25 citations