Back to results
US 12,145,231 B2Granted
Detection device for the seating detection of an object on a clamping device
AssigneeMAG IAS GmbH
InventorsTobias Birkner, Stephen Sorkalla
Life of this patent
Estimating the term…
Abstract
A detection device for the seating detection of an object on a clamping device includes a measuring chamber with an inflow opening to supply a detection fluid from a pressure source, at least one outflow opening to discharge the detection fluid to a pressure sink and with at least one detection opening, which can be closed at least partially by the object abutting on the clamping device. An inflow resistance limits an inflow of the detection fluid via the inflow opening, at least one outflow resistance limits an outflow of the detection fluid via the at least one outflow opening and a pressure sensor determines a pressure of the detection fluid in the measuring chamber.
Claims20
A detection device for the seating detection of an object on a clamping device, the detection device comprising:
- a measuring chamber with an inflow opening to supply a detection fluid from a pressure source into the measuring chamber, at least one outflow opening to discharge the detection fluid from the measuring chamber to a pressure sink and at least one detection opening, which is at least partially closable by the object abutting on the clamping device,
- an inflow resistance to limit an inflow of the detection fluid via the inflow opening,
- at least one outflow resistance to limit an outflow of the detection fluid via the at least one outflow opening, and
- a pressure sensor to determine a pressure of the detection fluid in the measuring chamber, wherein the measuring chamber has a bypass opening to supply the detection fluid from the pressure source into the measuring chamber, wherein the detection device comprises a bypass line configured to connect the bypass opening with the pressure source, wherein the bypass line has a flow resistance which is at least ten times lower than the inflow resistance, and wherein the detection device comprises a bypass valve configured to reversibly interrupt an inflow of the detection fluid via the bypass opening.
1 more element
A clamping device for positioning and clamping an object, the clamping device comprising:
- a detection device for seating detection of an object on a clamping device, the detection device comprising:
- a measuring chamber with an inflow opening to supply a detection fluid from a pressure source into the measuring chamber, at least one outflow opening to discharge the detection fluid from the measuring chamber to a pressure sink, at least one detection opening, which is at least partially closable by the object abutting on the clamping device and a bypass opening to supply the detection fluid from the pressure source into the measuring chamber, wherein the detection device comprises a bypass line configured to connect the bypass opening with the pressure source, wherein the bypass line has a flow resistance which is at least ten times lower than the inflow resistance, and wherein the detection device comprises a bypass valve configured to reversibly interrupt an inflow of the detection fluid via the bypass opening;
- an inflow resistance to limit an inflow of the detection fluid via the inflow opening;
- at least one outflow resistance to limit an outflow of the detection fluid via the at least one outflow opening, and
- a pressure sensor to determine a pressure of the detection fluid in the measuring chamber;
- and
- a contact body to clamp with the object, wherein the at least one detection opening is arranged on the contact body, wherein the measuring chamber is formed by a basic housing and a clamping housing which is displaceable in relation to the basic housing, and wherein the at least one outflow resistance is formed by a bearing gap between the basic housing and the clamping housing.
4 more elements
A machine tool, comprising:
- a machine frame;
- a clamping device for positioning and clamping an object, the clamping device comprising:
- a detection device for seating detection of an object on a clamping device, the detection device comprising:
- a measuring chamber with an inflow opening to supply a detection fluid from a pressure source into the measuring chamber, at least one outflow opening to discharge the detection fluid from the measuring chamber to a pressure sink, at least one detection opening, which is at least partially closable by the object abutting on the clamping device and a bypass opening to supply the detection fluid from the pressure source into the measuring chamber, wherein the detection device comprises a bypass line configured to connect the bypass opening with the pressure source, wherein the bypass line has a flow resistance which is at least ten times lower than the inflow resistance, and wherein the detection device comprises a bypass valve configured to reversibly interrupt an inflow of the detection fluid via the bypass opening;
- an inflow resistance to limit an inflow of the detection fluid via the inflow opening;
- at least one outflow resistance to limit an outflow of the detection fluid via the at least one outflow opening, and
- a pressure sensor to determine a pressure of the detection fluid in the measuring chamber;
- and
- a contact body to clamp with the object, wherein the at least one detection opening is arranged on the contact body;
- and
- a drive device to displace the contact body in relation to the machine frame, wherein the measuring chamber is formed by a basic housing and a clamping housing which is displaceable in relation to the basic housing, and wherein the at least one outflow resistance is formed by a labyrinth seal in a bearing gap between the basic housing and the clamping housing.
8 more elements
A process for the seating detection of an object on a clamping device, the process comprising the steps of:
- providing a detection device for seating detection of an object on a clamping device, the detection device comprising:
- a measuring chamber with an inflow opening to supply a detection fluid from a pressure source into the measuring chamber, at least one outflow opening to discharge the detection fluid from the measuring chamber to a pressure sink, at least one detection opening, which is at least partially closable by the object abutting on the clamping device and a bypass opening to supply the detection fluid from the pressure source into the measuring chamber, wherein the detection device comprises a bypass line configured to connect the bypass opening with the pressure source, wherein the bypass line has a flow resistance which is at least ten times lower than the inflow resistance, and wherein the detection device comprises a bypass valve configured to reversibly interrupt an inflow of the detection fluid via the bypass opening;
- an inflow resistance to limit an inflow of the detection fluid via the inflow opening;
- at least one outflow resistance to limit an outflow of the detection fluid via the at least one outflow opening, and
- a pressure sensor to determine a pressure of the detection fluid in the measuring chamber
- determining the pressure of the detection fluid in the measuring chamber by means of the pressure sensor, wherein during the determining of the pressure the detection fluid continuously flows out of the measuring chamber via the at least one outflow opening;
- and
- determining a state of positioning on the basis of the pressure.
5 more elements
Dependencies are inferred from the claim text.