Workpiece-clamping element
OwnerMartin Zimmer, Günther Zimmerinventors
Life of this patent
Estimating the term…
Abstract
A workpiece-clamping element has a cylinder and a lifting rod assembly guided in the cylinder with an annular piston and with an inner tube. The lifting rod assembly carries a suction plate having a workpiece support surface. A workpiece table has a plurality of workpiece-clamping elements of this type. A cylinder bottom of the cylinder penetrated by the lifting rod assembly, the lifting rod assembly and a cylinder jacket tube of the cylinder delimit a pressure chamber. In addition, the lifting rod assembly is mounted both in the cylinder bottom and in the cylinder head so that it can be displaced at least axially. The present disclosure allows a short changeover time and a shortened throughput time of workpieces.
Claims10
A workpiece-clamping element (70;
- 71), comprising:
- a cylinder (81);
- a lifting rod assembly (100), which is guided in the cylinder (81) and has
- an annular piston (102) and
- an inner tube (105);
- a suction plate (111) having a workpiece support surface (113), the suction plate (111) being carried by the lifting rod assembly (100);
- a displacement rod (131) loaded by at least one spring energy store (137) mounted in the suction plate (111);
- and
- a pressure chamber (142) delimited by
- a cylinder bottom (83) of the cylinder (81) penetrated by the lifting rod assembly (100),
- the lifting rod assembly (100), and
- a cylinder jacket tube (85) of the cylinder (81),
- wherein the lifting rod assembly (100) is mounted at least axially displaceably both in the cylinder bottom (83) and in a cylinder head (84), and
- wherein the displacement rod (131) protrudes beyond the workpiece support surface (113) when the at least one spring energy store (137) is relieved.
Dependencies are inferred from the claim text.