Disclosed is a universal fixture based machine tool used in the machining industry. The tool includes a numerically controlled machine tool body, a multifunctional machine tool countertop, a first fixture pallet, a second fixture pallet, a fixture integration platform, a split bench vise, and a flexible fixture element. The multifunctional machine tool countertop, the first fixture pallet and the second fixture pallet are all made of perforated foundation plates. The numerically controlled machine tool body can achieve a three-axis linkage machining function of X-, Y-, and Z-coordinate moving axes. The fixture integration platform can achieve a rotary machining function of three rotation axes A, B, and C of the universal fixture based machine tool. The flexible fixture element can have various combinations and changes, so that the universal fixture based machine tool has a machining function of three increment axes U, V, and W.

A vise includes a vise body having a base with spaced apart rails joined to the base, each rail including a flange with a surface having a slot. A movable jaw assembly is slidable on the surfaces is driven by an actuator supported by the vise. A stationary jaw has a key configured to engage the slots and has a surface facing the movable jaw assembly. Fasteners secure the stationary jaw to the vise body, where all of the fasteners extend through the surfaces of the vise body between the slots and the surface of the stationary jaw facing the movable jaw assembly.

A vise includes a vise body having a base with spaced apart rails joined to the base, each rail including a flange with a surface having a slot. A movable jaw assembly is slidable on the surfaces is driven by an actuator supported by the vise. A stationary jaw has a key configured to engage the slots and has a surface facing the movable jaw assembly. Fasteners secure the stationary jaw to the vise body, where all of the fasteners extend through the surfaces of the vise body between the slots and the surface of the stationary jaw facing the movable jaw assembly.

A holding apparatus for holding a workpiece, which has a round and/or tubular cross section and is to be machined, in such a way that, in the held state, the workpiece can be rotated in relation to the holding apparatus, having at least two clamping arms, which are mounted in a pivotable manner on a base part and by means of which a clamping force can be exerted onto the workpiece, and having an adjustment mechanism for the clamping arms. Provision is made for the adjustment mechanism to have at least two drivers which are guided in a straight line, it being possible for the clamping arms to be pivoted or the clamping arms being pivoted toward one another by virtue of the movement of the drivers, wherein the drivers are arranged one behind the other as seen transversely in relation to the direction of movement of the drivers.

A holding apparatus for holding a workpiece, which has a round and/or tubular cross section and is to be machined, in such a way that, in the held state, the workpiece can be rotated in relation to the holding apparatus, having at least two clamping arms, which are mounted in a pivotable manner on a base part and by means of which a clamping force can be exerted onto the workpiece, and having an adjustment mechanism for the clamping arms. Provision is made for the adjustment mechanism to have at least two drivers which are guided in a straight line, it being possible for the clamping arms to be pivoted or the clamping arms being pivoted toward one another by virtue of the movement of the drivers, wherein the drivers are arranged one behind the other as seen transversely in relation to the direction of movement of the drivers.

The invention relates to a device for holding prosthetic teeth (2), the device comprising a negative form (1) and at least one clamping unit (6), wherein in the negative form (1), recesses (4) for holding coronal sides (12) of the prosthetic teeth (2) are provided, wherein the recesses (4) are formed in such a manner that the prosthetic teeth (2) can be inserted in an unequivocally position and orientation into the recesses (4), wherein the at least one clamping unit (6) is affixable or is affixed to the negative form (1) with a connecting means (10), and wherein the at least one clamping unit (6) has at least one elastic holding means (8), wherein with the at least one elastic holding means (8), an elastic force is exercisable or is exerted from at least two different directions onto the prosthetic teeth (2) inserted into the negative form (1), while the at least one clamping unit (6) is affixed to the negative form (1), so that the prosthetic teeth (2) are affixed in the device. The invention also relates to a method for affixing, and preferably processing, prosthetic teeth (2) and a set for implementing such a method, having several prefabricated prosthetic teeth (2) and at least one such device.

The invention relates to a device for holding prosthetic teeth (2), the device comprising a negative form (1) and at least one clamping unit (6), wherein in the negative form (1), recesses (4) for holding coronal sides (12) of the prosthetic teeth (2) are provided, wherein the recesses (4) are formed in such a manner that the prosthetic teeth (2) can be inserted in an unequivocally position and orientation into the recesses (4), wherein the at least one clamping unit (6) is affixable or is affixed to the negative form (1) with a connecting means (10), and wherein the at least one clamping unit (6) has at least one elastic holding means (8), wherein with the at least one elastic holding means (8), an elastic force is exercisable or is exerted from at least two different directions onto the prosthetic teeth (2) inserted into the negative form (1), while the at least one clamping unit (6) is affixed to the negative form (1), so that the prosthetic teeth (2) are affixed in the device. The invention also relates to a method for affixing, and preferably processing, prosthetic teeth (2) and a set for implementing such a method, having several prefabricated prosthetic teeth (2) and at least one such device.

An air-conditioning apparatus including heat source apparatuses each including a compressor and an accumulator includes: a refrigerant amount calculation unit that calculates an amount of the refrigerant accumulated in the accumulator in one of the heat source apparatuses that is to be controlled; a refrigerant differential amount calculation unit configured to calculate, when the number of the heat source apparatuses is two, a differential amount between the calculated amount and an amount of the refrigerant in the accumulator in the other heat source apparatus, and calculate, when the number of the heat source apparatuses is three or more, a differential amount between the calculated amount of the refrigerant and an average amount of amounts of the refrigerant accumulated in the accumulators in the heat source apparatuses; and a liquid equalization control unit that controls the heat source apparatus to be controlled, based on the calculated differential amount.

A fluid pressure vise actuator includes a housing and an inner bore of the housing. A piston is disposed in the housing, and the piston is configured to actuate based on a pressure increase in ports of the housing. A gear is also disposed in the inner bore of the housing, and a portion of the gear is adjacent to the piston such that an actuation of the piston is configured to rotate the gear. The gear includes a socket configured to interface with a vise and operate the vise based on a rotation of the gear. The housing also includes adjustable clamping blocks configured to engage with the vise to provide support for the housing during operation. An adjustment of the clamping blocks enables the fluid pressure vise actuator to interface with multiple types of existing vises.

A clamping device for the securing of a clamping part is provided. The clamping device includes a stop element and a radial clamping device which define an inner space to partly hold the clamping part. The radial clamping device in a clamped condition exerts a radial securing force on the clamping part. A radial spacing exists between the radial clamping device and a clamping bush radially enclosing the clamping device. The clamping bush and the radial clamping device are radially movable relative to one another, such that the radial clamping device is mounted floating in the clamping bush.