Stretch-rolling device (1) and stretch-rolling method for pressure-forming workpieces (W) by rolls, the stretch-rolling device (1) having: a pair of work rolls with two rolls (10), which can each be rotated about their roll axes and form a roll gap between them, the rolls (10) implement a plurality of stages (S1 to S4) in the axial direction, which are set up for the stepwise deformation of the workpieces (W) by the workpieces (W) passing through the stages (S1 to S4) successively; a manipulator (20) with a plurality of gripping devices (21) which are arranged on a working side (AS) of the pair of work rolls and are set up to grip the workpieces (W) and at an assigned stage to guide the workpieces through (S1 to S4) the roll gap in a feed/retraction direction; a support (30) arranged to temporarily support workpieces (W) and in cooperation with the manipulator (20) to transfer the workpieces to another gripping device (21), preferably the adjacent gripping device (21) of the next higher stage (S2 to S4).

The present invention provides a holding mechanism capable of well preventing misalignment of a workpiece even if the outer diameter of the workpiece is changed when the workpiece is supported at three points by a flat face and a V-shaped groove. Additionally, the present invention provides a holding mechanism of a transfer device capable of stably detecting a chucking error of holding claws for a workpiece.

The present invention provides a transfer device of a multistage forging press machine, capable of making a power transmission mechanism compact with a reduced number of components, and capable of easily adjusting a conveyance position. Additionally, the present invention provides a transfer device of a multistage forging press machine, capable of moving a plurality of chuck units in a lump to a place where replacement work can be performed easily, and capable of replacing chuck claws easily.

A manufacturing method includes: conveying a target to a processing unit by using a conveying arm; conveying the target to a correction information acquiring unit provided in a position different from a position of the processing unit; acquiring position information relating to a position of the target conveyed to the correction information acquiring unit in a three-dimensional space; correcting a conveying position of the conveying arm to the processing unit based on the position information; and executing processing for the target conveyed to the corrected conveying position to manufacture a product.

A progressive cold forming machine and a robot for automatically changing a cutoff cassette, tooling cassettes, a transfer slide and transfer cam. A loading area adjacent the machine and robot has provisions for supporting a tooling cassette pallet and a transfer slide and camshaft pallet and a holding area for temporarily receiving some of the componentry being exchanged.

A progressive cold forming machine and a robot for automatically changing a cutoff cassette, tooling cassettes, a transfer slide and transfer cam. A loading area adjacent the machine and robot has provisions for supporting a tooling cassette pallet and a transfer slide and camshaft pallet and a holding area for temporarily receiving some of the componentry being exchanged.

A transfer mechanism includes a rail, first and second tables on the rail, first and second arms each having a base pivotably supported by the first and second tables, respectively, and first and second drive mechanisms that move the first and second tables along the rail, respectively. The first and second arms are pivotaly connected to each other at a position between a tip side and a base side. Tip side portions of the first and second arms than a connected portion of the first and second arms serve as fingers for holding a workpiece. The first and second drive mechanisms independently move the first and second tables, respectively. A relative movement of the first and second tables causes the first and second arms to operate a clamp/unclamp operation. A coordinated movement of the first and second tables causes the first and second arms to perform an advance/return operation.

A method and a plant for manufacturing fasteners, in particular screws, along an automated production line; the method comprising the following steps: feeding the raw material made of titanium; heating the raw material to a predefined temperature; cutting one or more pieces of a predefined length, in succession, from the heated raw material; deforming plastically each piece by means of one or more finishing stations, so as to obtain a fastener; heating, during the deforming step, the material that passes through each workstation to a predefined temperature; wherein the material manipulated along the production line during the feeding, heating, and deforming steps is automatically transported along the production line.

A method and a plant for manufacturing fasteners, in particular screws, along an automated production line; the method comprising the following steps: feeding the raw material made of titanium; heating the raw material to a predefined temperature; cutting one or more pieces of a predefined length, in succession, from the heated raw material; deforming plastically each piece by means of one or more finishing stations, so as to obtain a fastener; heating, during the deforming step, the material that passes through each workstation to a predefined temperature; wherein the material manipulated along the production line during the feeding, heating, and deforming steps is automatically transported along the production line.

A support apparatus for supporting a steering rack forged in a forging die, comprising a gripper to grip the shank of the rack, a lost-motion mechanism supporting the gripper and permitting limited movement in the direction of closing of the forging die, and a side-shift mechanism to move the gripper sideways. The lost-motion mechanism abuts the die assembly as the forging die closes thereby positioning the gripper to grip the shank of the steering rack during the final closing travel of the forging die. The gripper then lifts the steering rack as the forging die opens. The side-shift mechanism then moves the gripped steering rack sideways.