A positioning apparatus including a base structure; a first workpiece support; a second workpiece support; a support member supporting the first workpiece support and the second workpiece support; and a drive arrangement arranged to drive the support member relative to the base structure from a first position, where the first workpiece support is positioned on a processing side of the base structure and the second workpiece support is positioned on an opposite loading side of the base structure, to a second position, where the first workpiece support is positioned on the loading side and the second workpiece support is positioned on the processing side; wherein the drive arrangement is arranged to drive the first workpiece support along a first path and the second workpiece support along a second path when driving the support member from the first position to the second position, the first and second paths being non-circular.

Exemplary Embodiments of the invention relate to a device for moving a plate in a plane P parallel to same, said plate including at least two opposite edges parallel to one another, wherein it includes at least two arms parallel to one another and movable in a plane parallel to said plane P, one of said arms being directly moved by a first actuator, the other arm being driven by said first arm via a connection member, a drive member mounted on the free end of each of said two arms such as to be pivotable about an axis perpendicular to said plane P and moved by a second actuator, each drive member engaging with an actuation member arranged along one of the edges of the plate.

A machining unit for use on a machining tool has a head carrier that is attachable to the machine tool and has a head carrier housing , a swivel head that is provided to swivel relative to the head carrier about a swivel head rotation axis and has a swivel head housing, a spindle head that is attached to the swivel head and has a working spindle , and a cable run that extends inside the head carrier housing to the swivel head and has a plurality of members that are arranged in succession along the cable run and are connected movably together. Adjacent members are in this case able to rotate and swivel relative to one another and each member has a central piece and a sheathing spaced apart therefrom. The central piece is connected to the sheathing via one or more connection elements.

The present invention provides a blisk machining center, including: A-axis rotary assembly, B-axis rotary assembly and C-axis rotary assembly, wherein the A-axis rotary assembly drives the blisk to rotate, the B-axis rotary assembly drives an attachment head to rotate, and the attachment head drives a tool to machine the blisk, and the C-axis rotary assembly drives the A-axis rotary assembly to rotate, wherein the intersection of the rotation axis of the B-axis rotary assembly and the rotation axis of the C-axis rotary assembly is the center of the machining area of the blisk, and the tip point of the tool is on the rotation axis of the B-axis rotary assembly. In the present invention, the machining area is near the rotation center of the C-axis turntable, which ensures that the speed and acceleration of the movement of each physical axis are kept within a lower range than those of general machine tools when the machine tool is performing the machining of the 5-axis rotary tool center point.

The present invention discloses an machining device based on a portable 5-DOF parallel module. The machining device based on a portable 5-DOF parallel module comprises: a table for moving a parallel module to increase the stroke of the machine tool such that the machine tool can machine large components and can also simultaneously conduct the mounting and the machining of workpieces at different stations; a CNC rotary table; and a portable 5-DOF parallel module. The portable parallel module has a large swing angle range, can conduct the conversion between vertical and horizontal machining modes and can achieve five-face machining in one setup in cooperation with the CNC rotary table. The parallel module can move flexibly, and can machine large and complex components after mounted on the sliding table. After the machining of the workpiece is completed, the parallel module can move to the position of a mounted component through the table to conduct the machining of the next component. Thus, the mounting and the machining of the workpiece are simultaneously conducted at different stations, and the utilization rate and the production efficiency of the portable parallel module are improved.

The present invention discloses a belt-transmission angle attachment head, including a housing, a power mechanism, a transmission mechanism and a spindle; the power mechanism and transmission mechanism are arranged in the housing; the power mechanism includes a servo motor and a reducer, the servo motor is connected to the reducer, and an input shaft of the reducer is vertically arranged with respect to an output shaft of the reducer; the transmission mechanism includes a driving wheel, a transmission belt and a driven wheel, and the driving wheel is mounted on the output shaft of the reducer; a side of the spindle is mounted on the housing via a rotating shaft, an end of the rotating shaft away from the spindle is mounted with the driven wheel, the driving wheel and the driven wheel are connected via the transmission belt, and the spindle and the power mechanism are located on the same side of the transmission mechanism. The angle attachment head has advantages such as small size, simple structure and suitable for deep cavity machining.

The present invention provides a multi-connecting rod linkage angle attachment head, including: a casing, a drive mechanism, and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism, and a fixing frame. The fixing frame is fixedly connected to an inner wall of the casing, and the power mechanism is fixedly connected to the fixing frame. The connecting rod mechanism includes: a first connecting rod, a second connecting rod and a third connecting rod. An end of the first connecting rod is rotatably connected to the fixing frame, and is fixedly connected to an output end of the power mechanism. The other end of the first connecting rod is rotatably connected to an end of the third connecting rod via a first pin. The other end of the third connecting rod is rotatably connected to an end of the second connecting rod via a second pin. The other end of the second connecting rod is fixed on a side wall of the spindle. The second connecting rod and the spindle are rotatably connected to a support bearing fixed in the casing. The drive mechanism of the present invention is far away from the spindle, and the interference range thereof to the spindle is small; the spindle can be automatically and continuously indexed, and can also perform linkage machining with small cutting amount, and thus, when the spindle swings by the same angle along a support shaft, the volume of the device is reduced; the structure is simple and the manufacturing cost is low.

The present invention provides a linkage swing head structure, including: a base, a drive mechanism and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism and a lead screw. An end of the spindle is fixed with a cutter, and the spindle is fixed on an end of the connecting rod mechanism. An end of the connecting rod mechanism fixed with the spindle is sleeved on a support bearing, the connecting rod mechanism can rotate around the support bearing, the support bearing is fixed on the base, and the other end of the connecting rod mechanism is movably connected to the lead screw. An output end of the power mechanism is connected to an end of the lead screw. The connecting rod mechanism adjusts the rotation angle of the spindle by sliding on the lead screw. The drive mechanism of the present invention is far away from the spindle, and the interference range thereof to the spindle is small. The spindle can be automatically and continuously indexed, and can also perform linkage machining with small cutting amount, and thus, when the cutter rotates by the same angle, the volume of the device is reduced; the structure is simple and the manufacturing cost is low.

Provided is a rotational positioning device capable of positioning a rotational angle at a target angle position with high precision. A rotational positioning device is provided with: a housing; a rotational member which is rotatable about a rotational member axial line and at least a part of which is accommodated in the housing; and at least one sensor installed in the housing. A graduated scale with a plurality of scale marks is formed integrally with the rotational member along the circumferential direction of the rotational member. The at least one sensor detects an angle change amount due to rotation of the rotational member on the basis of the plurality of scale marks. The rotational member is positioned at the target angle position on the basis of the angle change amount.

Provided is a rotational positioning device capable of positioning a rotational angle at a target angle position with high precision. A rotational positioning device is provided with: a housing; a rotational member which is rotatable about a rotational member axial line and at least a part of which is accommodated in the housing; and at least one sensor installed in the housing. A graduated scale with a plurality of scale marks is formed integrally with the rotational member along the circumferential direction of the rotational member. The at least one sensor detects an angle change amount due to rotation of the rotational member on the basis of the plurality of scale marks. The rotational member is positioned at the target angle position on the basis of the angle change amount.