Metal working – Plural diverse manufacturing apparatus including means for... – With means to feed work intermittently from one tool station...
Reexamination Certificate
2002-03-06
2003-05-06
Briggs, William (Department: 3722)
Metal working
Plural diverse manufacturing apparatus including means for...
With means to feed work intermittently from one tool station...
C409S201000, C409S204000, C409S211000, C409S216000, C409S235000, C414S749600, C414S749100, C414S751100
Reexamination Certificate
active
06557235
ABSTRACT:
BACKGROUND
Recent developments in manufacturing have been directed to robots, manipulators or machines that are designed to operate with closed-loop mechanisms, such as parallel mechanisms. Parallel mechanisms incorporate several independent kinematic chains that include an assemblage of links and joints interconnected such that the links are substantially free from bending moments.
Parallel kinematic machines, i.e. machines that are based on parallel mechanisms, and parallel robots are capable of operating at high speed and acceleration, and combine high rigidity with high flexibility and accuracy. Prior art parallel robots include a traveling plate or mobile platform that can operate with many degrees of freedom, but also require an equivalent number of costly actuators.
U. S. Pat. Nos. 5,333,514 and 5,857,815, for example, disclose parallel robots or manipulators with six degrees of freedom. European Patent Application EP 1 084 802 A2 discloses a parallel robot with four degrees of freedom. U.S. Pat. No. 6,161,992 discloses a machining system with a parallel mechanism having three degrees of freedom.
SUMMARY
One embodiment of the invention provides an apparatus comprising a frame, a mobile platform and first and second linearly-actuated slides supported on a base connected to the frame. The first and second slides are movable along a line defining a first axis. The apparatus may include a first driving connector movably coupled to the first slide and to the mobile platform, and a second driving connector movably coupled to the second slide and to the mobile platform, such that the mobile platform is displaceable within at least two degrees of freedom defined by linear motions along the first axis and a second axis, the second axis being coplanar and orthogonal to the first axis. An end effector may be also coupled to the mobile platform, the end effector having an axis aligned in a direction defined by the second axis. The end effector may comprise, for example, a tool or a gripper.
REFERENCES:
patent: 4732525 (1988-03-01), Neumann
patent: 5195388 (1993-03-01), Zona et al.
patent: 5333514 (1994-08-01), Toyama et al.
patent: 5564888 (1996-10-01), Doan
patent: 5575597 (1996-11-01), Bailey et al.
patent: 5715729 (1998-02-01), Toyama et al.
patent: 5857815 (1999-01-01), Bailey et al.
patent: 5941128 (1999-08-01), Toyama et al.
patent: 5980360 (1999-11-01), Murray et al.
patent: 6026703 (2000-02-01), Stanisic et al.
patent: 6043621 (2000-03-01), Neumann
patent: 6120290 (2000-09-01), Fukushima et al.
patent: 6135683 (2000-10-01), Kim et al.
patent: 6161992 (2000-12-01), Holy et al.
patent: 6196081 (2001-03-01), Yau
patent: 6203254 (2001-03-01), Nashiki et al.
patent: 6374156 (2002-04-01), Shimogama et al.
patent: 6428267 (2002-08-01), Terpstra
patent: 1 084 802 (2001-03-01), None
patent: 1 084 802 (2001-07-01), None
patent: WO 99/38646 (1999-08-01), None
patent: WO 99/61198 (1999-12-01), None
patent: WO 00/09285 (2000-02-01), None
patent: WO 00/09285 (2000-02-01), None
patent: WO 00/45991 (2000-08-01), None
Stiffness Analysis of Re-Configurable Parallel Mechanisms with Prismatic Actuators, Dan Zhang, Fengfeng Xi and Chris K. Mechefske, Proceedings of CIRP 1st International Conference on Agile, Reconfigurable Manufacturing, Ann Arbor Michigan USA, Monday, May 21, 2001.
Optimization of Re-Configurable Parallel Mechanisms with Revolute Actuators, Dan Zhang, Fengfeng Xi and Chris K. Mechefske, Proceedings of CIRP 1st International Conference on Agile, Reconfigurable Manufacturing, Ann Arbor, Michigan USA, Monday, May 21, 2001.
Reconfiguration Capabilities of Single-Purpose Machine Tools Based on parallel Kinematic Structures, Neugebauer, R.; Ihlenfeldt, St.; Weidermann, F.; Kirchner, J., Proceedings of CIRP 1st International Conference on Agile, Reconfigurable Manufacturing, Ann Arbor, Michigan USA, Monday, May 21, 2001.
Parellel Kinematic Machine Research at NIST: Past, Present, and Future, Albert J. Wavering, First European-American Forum on Parallel Kinematic Machines Theoretical Aspects and Industrial Requirements, Aug. 31-Sep. 1, 1998, Milan, Italy.
Machine Technology, http://www.isw.uni-stuttgart.de/english/department-4/dep-4-1.htm.
Sonderforschungsbereich, SFB 562, Robotersysteme für Handhabung und Montage, http://www.tu-bs.de/sfbs/sfb562/html/Home.html.
Katz Reuven R.
Koren Yoram
Li Zhe
Pierrot François R.
Briggs William
Kirkpatrick & Lockhart LLP
Ross Dana
The Regents of the University of Michigan
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