A fixture for holding a workpiece includes clamps configured to engage tie rods secured to the workpiece, locating pins configured to engage a corresponding pin secured to the workpiece, pads, and actuators configured to move clamps for alternately drawing the workpiece into contact with the pads and disengaging the tie rod from the clamp such that the fixture assembly can release the workpiece.

In a fixture (1) by means of which a workpiece (2) to be machined is held on a tool table (3) of a machine tool (4), comprising: a housing (10) into which a passage opening (11) is worked, in which a clamping pin (12) is inserted for supporting the workpiece (2) on the housing (10) of the fixture (1), a fastening screw (14) engaging in the passage opening (11) by means of which the housing (10) is fixed onto the tool table (3) in an oriented position, a driving ring (15) mounted in the housing (10) in a rotating arrangement which is in a driving active connection with a driving spindle (20) inserted in the housing (10), by means of which the driving ring (15) can be moved about the longitudinal axis (11) of the passage opening (11) within a specified angle range (), and at least two locking pins (18) facing the longitudinal axis (11) of the passage opening (11), mounted in the housing (10) in such a way as to allow radial movement and each of which is in a driving connection with the driving ring (15), and by means of which the clamping pin (12) is locked in the passage opening (11) of the housing (10) in the clamped condition and/or is released in the initial condition, the conversion of the rotational movement of the driving ring (15) into a radial advance movement for the locking pins (18) used should take place without play and with at least two different ratios.

This is achieved in that a control surface (21) or control cam with at least two different pitches (22, 23) is worked onto the inside (16) of the driving ring (15) in each area of the locking pins (18), that an accommodating pocket (19) with a U-shaped cross section is worked into the corresponding locking pins (18) into which the driving ring (15) engages, and that a contact surface (25) is worked onto or provided on the wall of the locking pin (18) facing the inner wall (16) of the driving ring (15) and the contact surface (25) is in contact with the control surface (21) or control cam of the driving ring (15) and moves the corresponding locking pin (18) radially inwards or outwards depending on the direction of rotation of the driving ring (15).

An improved tooling, including: a base housing having an interior and tooling holes, the tooling holes being configured to receive alignment studs attached to a tooling fixture; a first clamping fixture and a second clamping fixture fit inside hollowed regions within the base housing; a shaft having a length and an axis along the length of the shaft, the shaft situated inside the base housing and the shaft having a first threaded region and a second threaded region to connect the first clamping fixture and the second clamping fixture, whereby rotation of the shaft causes the first clamping fixture and the second clamping fixture to move towards and away from each other along the axis of the shaft; each of the first clamping fixture and the second clamping fixture comprising one or more securing mechanisms configured to: engage and disengage the alignment studs based upon rotation of the shaft.

A quick-change vice base with improved structure, which comprises: a base body, a quick-change coupler, a moveable block set and a central bolt, wherein, the bottoms of the first moveable block and second moveable block are respectively locked with a moveable block positioning base, one end of the moveable block positioning base has a pushing block; when the lead screw rotates clockwise, the first moveable block and the second moveable block will move toward the quick-change coupler, so that the curved stopping blocks on the first moveable block and the second moveable block will be fitted into the recesses of the quick-change coupler; when the lead screw rotates anticlockwise, the first movable block and the second movable block will move away from the quick-change coupler and drive the moveable block positioning seat to move simultaneously.

A zero-point fixture is a means for securing a component in place during machining. The fixture features a base plate that is placed onto a machining surface and a mounting plate to which the component may be attached. The mounting plate and the component are secured to the base plate by operatively engaging a plurality of retention knobs on the mounting plate into a plurality of pressurized clamps on the base plate. A plurality of mounting holes and a plurality of mounting channels allow the component to be mounted in a number of positions and orientations that may be reproduced for subsequent components to be machined. A plurality of risers serves to offset the component from the mounting plate while a plurality of elongated fasteners is inserted into the component to prevent movement of the component during machining.

An attachment for a clamping bolt has a base body and an opening which passes through the base body. Around the through-going opening runs a contact face which is positioned orthogonally on the longitudinal axis of the through-going opening and which is configured to make contact with the clamping bolt. A receptacle region runs around the through-going opening in the basic body, between the through-going opening and the contact face. An RFID transponder is arranged in the receptacle region. The clamping bolt has a circular-cylinder-shaped clamping region. A first boundary region and a second boundary region bound the clamping region along the longitudinal axis of the clamping bolt Each boundary region has a larger external diameter than the clamping region. The attachment is arranged on the first boundary region. A through-going opening runs along the longitudinal axis of the clamping bolt.

Embodiments of the invention provide a device used for centering equipment having a center hole. The device includes a base; a central spindle partly coupled to the base; an upper supporting assembly partly coupled to the central spindle; and a centering device configured to act on the equipment having the center hole to perform centering operation. Using the centering device of the present disclosure to detect the deformation of equipment having a central hole, no fixtures are involved, thus saving the time for disassembling the equipment, and no need to select the fixtures to match the equipment, only to place the equipment in an appropriate way to complete the centering, thus improving the efficiency. In addition, no fixtures need preparing, which greatly reduces the costs.

An attachment for a clamping bolt has a base body and an opening which passes through the base body. Around the through-going opening runs a contact face which is positioned orthogonally on the longitudinal axis of the through-going opening and which is configured to make contact with the clamping bolt. A receptacle region runs around the through-going opening in the basic body, between the through-going opening and the contact face. An RFID transponder is arranged in the receptacle region. The clamping bolt has a circular-cylinder-shaped clamping region. A first boundary region and a second boundary region bound the clamping region along the longitudinal axis of the clamping bolt Each boundary region has a larger external diameter than the clamping region. The attachment is arranged on the first boundary region. A through-going opening runs along the longitudinal axis of the clamping bolt.

The coupling device (1) comprises a clamping fixture (2) fixable to a manipulator and an adapter (40) securely clampable thereto. Both the clamping fixture (2) and the adapter (40) are configured substantially rectangular. The clamping fixture (2) comprises a locking mechanism (5) consisting of two laterally shiftable locking elements (6, 7) and an actuating member (8) disposed inbetween. For fixedly securing the adapter (40) to the clamping fixture (2) the locking elements (6, 7) are urged by means of the actuating member into the side widenings (45, 46) of the locking opening (44). In addition, the clamping fixture (2) is provided with a slotted recess (4) and the adapter (40) with an elongated base (41), the latter being insertable into the slotted recess (4).

A pallet device which can prevent a hook fixed to a pallet from interfering with a workpiece or a tool for a machine tool. The pallet device includes a pallet including a pallet main body which clamps a workpiece, and a replacement hook movably provided in the pallet main body, the replacement hook being movable between a projection position at which the replacement hook projects outside the pallet main body and a retraction position to which the replacement hook is retracted from the projection position to the pallet main body, and a jig to and from which the pallet is attached and detached.