A device (1) for controlling operation of a chuck (2), the device (1) comprising a chuck (2) for centering a workpiece (3) to be machined; at least one electric motor (6) connected to at least one moveable clamping jaw (4), the at least one movable clamping jaw (4) being configured to be selectively moved by the at least one electric motor (6); a first inductive transmission device; a second inductive transmission device (8) disposed in alignment with the first inductive transmission device (7) such that measurement signals and/or electric power are inductively transmitted between the first transmission device (7) and the second transmission device (8); and an external control device (11) by means of which command and monitoring data required for the operation of the at least one clamping jaw (4), and for the operation and locking of the electric motors (6) can be entered and/or read.

A structure, including first and second portions respectively having a serration in which peaks and valleys are continuous, and configured to adjust relative positions of the first and second portions in an adjustment direction by interlocking the peaks and valleys with each other. The adjustment direction is a direction in which the peaks and valleys of the serration are continuous; a fixing portion configured to maintain a defined state. The defined state is a state in which the peaks and valleys are interlocked with each other and the relative positions of the first and second portions are fixed; and a positioning mechanism provided on the second portion or the fixing portion, and having a contact portion configured to contact the first portion in the defined state.

A structure that is mounted to industrial equipment. This structure includes a jig, a first fixing member and a second fixing member, and a grip part. The industrial equipment has an attachment/detachment region for attaching and detaching the jig. The attachment/detachment region has a first space. The jig has a second space. The first fixing member is accomodatable in the first space. The second fixing member is accomodatable in the second space. The second fixing member is configured so that the jig can be attached to and detached from the attachment/detachment region by adjusting the degree of helical engagement of the first and second fixing members. The grip part is provided to at least one of the first fixing member and the second fixing member, and is configured grippable such that, in a state in which the degree of helical engagement has been loosened, the structure can smoothly be moved.

In a coupling device (1), in particular for a man-machine interface (21) for operating inductively operated chucks (2), the coupling device comprising: an inductively operated chuck (2) for centering a workpiece (3) to be machined in space with at least one movable clamping jaw (4), an electric motor (6) drivingly connected to each of the said jaws (4), the said electric motor (6) being incorporated in the said chuck (2) and each jaw (4) being driven or fixed by the said electric motor (6), a first inductive transmission device (7) assigned to the chuck (2), a carrier or machine frame (10) spatially separated from the chuck (2), a second inductive transmission device (8) assigned to the frame (10), which is arranged in the region of the first inductive transmission device (7) of the chuck and exchanges measuring signals and voltages inductively therewith, and an external control device (11), by means of which command and monitoring data required for the operation and setting of the clamping jaws (4) and for the operation and locking of the electric motors (6) can be entered and/or read,
the intention is to ensure that, independently of the customer-specific electrical devices, complete operation of the chuck (2) and its monitoring during a machining operation is achieved immediately after coupling of the control devices (11) provided by the customer with the chuck.

This is achieved in that at least one programmable interface (21), which is electrically connected to the second inductive transmission device (8) and the control device (11), is provided between the second inductive transmission device (8) and the control device (11), each interface (21) has one or more command and control programs by means of which the chuck (2) can be set or selected by the control device (11), a plurality of measuring sensors (22) are provided which are assigned to the clamping jaws (4), electric motors (6) and/or the chuck (2) and by means of which their operating states are detected and transmitted to the respective interface (21), in that the respective interface (21) compares the actual data stored in the command programs with the measurement data determined by the measuring sensors (22), and in that this comparison of the selected operating state of the chuck (2) with an actual operating state generates data records which are evaluated by the respective interface (21) and forward

A master jaw of the chuck device includes a recessed portion recessed in a direction parallel to an axis of a spindle, and a locking portion provided outside the recessed portion in a direction orthogonal to the axis. The sub jaw includes an insertion member inserted into the recessed portion from a direction parallel to the axis by an elastic force of an elastic member, a plate located on a side opposite to the biasing member in a state of being attached to the master jaw and clamping the master jaw between the plate and the insertion member inserted into the recessed portion, and a locked portion configured to come into contact with and be locked to the locking portion from an inside in a direction orthogonal to the axis in a state in which the insertion member is inserted into the recessed portion.

A structure, including first and second portions respectively having a serration in which peaks and valleys are continuous, and configured to adjust relative positions of the first and second portions in an adjustment direction by interlocking the peaks and valleys with each other. The adjustment direction is a direction in which the peaks and valleys of the serration are continuous; a fixing portion configured to maintain a defined state. The defined state is a state in which the peaks and valleys are interlocked with each other and the relative positions of the first and second portions are fixed; and a positioning mechanism provided on the second portion or the fixing portion, and having a contact portion configured to contact the first portion in the defined state.