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US 10,173,267 B2Granted
Tool clamping device
AssigneeESA Eppinger GmbH
InventorsJoel Judas, Manfred Neumeier
Life of this patent
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Abstract
A tool clamping device having a tool holder holding a tool, said tool holder being designed for insertion into a socket of a tool carrier, in particular a lathe, has a tool quick-change system.
Claims45
An apparatus comprising a tool clamping device comprising:
- a tool holder (3) configured to hold a tool and be inserted into a socket of a tool carrier (1), the tool holder comprising:
- a support face (15) associated with the tool carrier's support face (2), one of:
- the tool holder (3) further comprises at least one adjustment element (17) protruding axially in an axial direction beyond the tool holder's support face (15), wherein the at least one adjustment element (17) is configured to bear on at least one bearing point associated with the at least one adjustment element formed on the tool carrier (1) when the tool holder is inserted into the socket, wherein the at least one bearing point is arranged on a wall (38) of at least one receiving groove (35, 36) formed on the tool carrier, or
- the tool holder (3) further comprises a wall (38) of at least one receiving groove (35, 36) formed on the tool holder, wherein the wall (38) includes at least one bearing point configured to, when the tool holder is inserted into the socket, bear at least one adjustment element (17) protruding axially beyond the tool carrier's (1) support face;
- devices configured to fasten the tool holder to the tool carrier, the devices comprising at least two anchoring rods (16), which are arranged at right angles to the support face (15) of the tool holder or the tool carrier and are arranged on the tool holder (3) or the tool carrier (1) at a distance from one another and separately from the at least one adjustment element, a clamping device (60) provided on the tool carrier or the tool holder and, when the tool holder is inserted into the socket, is configured to act on the anchoring rods (16) during a clamping operation and to exert an axial clamping force onto said anchoring rods,
- wherein the tool holder (3) during the clamping operation is held free from transverse forces influencing the bearing of the at least one adjustment element (17) at the bearing point thereof on the wall (38) of the at least one receiving groove (35, 36), and
- wherein the clamping device (60) comprises an actuation device configured to generate an axial clamping force acting on the at least two anchoring rods (16) jointly by pressing the two support faces (2, 15) towards one another by the generated axial clamping force.
4 more elements
A tool holder for use in a tool clamping device, the tool holder comprising:
- a housing (13, 14), which has a support face (15) designed for support on a tool carrier, and wherein the housing includes attached thereon:
- at least one adjustment element (17) protruding axially beyond the support face (15) for accurately positioning the tool holder (3) with respect to a socket of a tool carrier provided at least with a receiving groove for the adjustment element, or
- at least one receiving groove for receiving at least one adjustment element of a tool carrier protruding axially beyond the support face;
- at least two anchoring rods (16), which are designed to detachably fasten the tool holder to the tool carrier and are arranged extending at right angles to the support face (15) at a distance from one another and separately from the adjustment element (17), wherein the at least two anchoring rods (16) are configured to be engaged by a clamping device (60) that when clamped exerts an axial clamping force on the at least two anchoring rods (16).
1 more element
A tool carrier for use in a tool clamping device, the tool carrier comprising:
- at least one support face (2) for a tool holder,
- at least one receiving groove (35, 36) for at least one adjustment element of a tool holder fitted onto the at least one support face or at least one adjustment element protruding axially beyond the support face is arranged,
- a fastening device comprising:
- at least two openings (72), which are arranged in a region of the support face (2) and start therefrom and are each designed to receive an anchoring rod of a tool holder fitted onto the at least one support face, and
- a clamping apparatus (60) provided on the tool carrier and designed, to, during a clamping operation, act on the anchoring rods protruding into the openings (72) and to exert an axial tensile force thereonto, and
- the clamping apparatus (60) configured to act on the at least two anchoring rods jointly.
3 more elements
Dependencies are inferred from the claim text.