Spinning machine with at least one roller holder
First Claim
1. Metal spinning machine comprising:
- a tool rest system, at least one roller holder, a roller held by the roller holder for rotation on the tool rest system which permits a displacement of the roller in at least two coordinate directions relative to a workpiece to be formed by spinning, a spindle for mounting the workpiece and means for driving the spindle in rotation, a rotationally symmetrical chuck which shapes the workpiece, apparatus limiting force which can be exerted on the workpiece by the roller,the roller holder having two holder parts which are slidingly displaceable against one another, one of which is configured as a fixed holder part which can be fastened to the tool rest system and an other of which is configured as a displaceable holder part bearing the roller,a source of pressure medium kept at a predetermined pressure, the one holder part being configured with a cylinder coupled to the pressure medium source,the other holder part being configured with a piston which can be driven in an extending direction by the pressure medium with a predetermined force corresponding to the predetermined pressure of the the pressure medium, andthe roller yielding dynamically and with resilience to a force exerted on the roller by the workpiece and exceeding an extending force of the piston, with displacement of the pressure medium from the cylinder into the pressure medium source which is kept at a predetermined pressure.
1 Assignment
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Accused Products
Abstract
A metal spinning machine with at least one roller holder, the roller holder being mounted exchangeably on a tool rest system with a roller rotatably borne by it. The tool rest system permits the roller to be displaced in at least two coordinate directions relative to a workpiece to be formed by spinning. The workpiece can be mounted on a rotatable metal spinning machine spindle with a rotationally symmetrical shaping tool. The metal spinning machine is equipped with a means limiting the force which can be exerted by the roller on the workpiece.
The new metal spinning machine is characterized by the fact
that the roller holder (1) is made with two holder parts (2, 3) which are slidingly displaceable on one another, one of them being configured as a fixed holder part (2) which can be attached to the tool rest system (4) and the other being configured as the displaceable holding part (3) bearing the roller (10),
that the one holder part (3) is made with a cylinder (20) which can be fed a pressure medium,
that the other holder part (3) is made with a piston (30) which can be actuated by the pressure medium with a predeterminable force in the extending direction, and
that the roller (10) can be pushed back dynamically by an excessive force applied to it by the workpiece (30).
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Citations
10 Claims
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1. Metal spinning machine comprising:
- a tool rest system, at least one roller holder, a roller held by the roller holder for rotation on the tool rest system which permits a displacement of the roller in at least two coordinate directions relative to a workpiece to be formed by spinning, a spindle for mounting the workpiece and means for driving the spindle in rotation, a rotationally symmetrical chuck which shapes the workpiece, apparatus limiting force which can be exerted on the workpiece by the roller,
the roller holder having two holder parts which are slidingly displaceable against one another, one of which is configured as a fixed holder part which can be fastened to the tool rest system and an other of which is configured as a displaceable holder part bearing the roller, a source of pressure medium kept at a predetermined pressure, the one holder part being configured with a cylinder coupled to the pressure medium source, the other holder part being configured with a piston which can be driven in an extending direction by the pressure medium with a predetermined force corresponding to the predetermined pressure of the the pressure medium, and the roller yielding dynamically and with resilience to a force exerted on the roller by the workpiece and exceeding an extending force of the piston, with displacement of the pressure medium from the cylinder into the pressure medium source which is kept at a predetermined pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a tool rest system, at least one roller holder, a roller held by the roller holder for rotation on the tool rest system which permits a displacement of the roller in at least two coordinate directions relative to a workpiece to be formed by spinning, a spindle for mounting the workpiece and means for driving the spindle in rotation, a rotationally symmetrical chuck which shapes the workpiece, apparatus limiting force which can be exerted on the workpiece by the roller,
Specification