B - Operations – Transporting – 23 – Q
Patent
B - Operations, Transporting
23
Q
B23Q 3/00 (2006.01) B23Q 7/14 (2006.01) B23Q 16/00 (2006.01)
Patent
CA 2117207
The apparatus for clamping a work piece at a work station of a machining apparatus in a well defined position comprises a base member to be fixed in the working area of a machining apparatus and a work piece carrier member adapted to be put onto the base member and to be fixed thereto. The base member and the work piece carrier member each comprise pair wisely cooperating aligning means in order to align the position of the work piece carrier member with respect to the base member along three coordinate axes running perpendicularly to each other as well as with regard to the angular position. Clamping means adapted to develop a clamping force to fix the work piece carrier member to the base member in the well defined position which is defined by the aligning means are provided. The aligning means comprise first aligning element pairs for the definition of the position of the work piece carrier member in the Z-axis in the form of cooperating reference surfaces located at the work piece carrier member and the base member, re- spectively, and the aligning means further comprise second align- ing element pairs for the definition of the position of the work piece carrier member in the X-axis and third aligning element pairs for the definition of the position of the work piece carrier member in the Y-axis. Both the second and third aligning element pairs are in the form of cooperating linear aligning element pairs. The cooperating linear alignment pairs each comprise a wedge-shaped centering ruler member and a counterpart member with a matching centering slit. The clamping means comprises a plural- 2 ity of clamping members, each including a clamping pin member fixed to the work piece carrier member and a clamping chuck member located in the base member. The work piece carrier member com- prises an essentially even, continuous flat surface at its side which faces the base member if the work piece carrier member is clamped to the base member, the flat surface portionally forming one of the reference surfaces. Each one member of the second and third linear aligning element pairs for the definition of the po- sition of the work piece carrier member in X- and Y-direction is directly connected to the flat surface, and each of the clamping pin members of the clamping means is also directly connected to the flat surface.
Obrist Basil
Troxler Ferdinand
Cassan Maclean
Erowa Ag
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