Aida Engineering, Ltd.

Unisia Jecs Corporation

Nissan Motor Company Limited

Hitachi, Ltd.

Aida Engineering Co., Ltd.

Keisuke Takeda

Seinosuke Hara

Makoto Nakamura

Yoshihiko Yamada

Shinichi Takemura

Tetsuro Goto

Takashi Koshimizu

Shinichi Kawada

Mikihiro Kajiura

Tamotsu Todo

Seiji Nakoshi

Satoshi Suzuki

Shunichi Aoyama

Katsuya Moteki

Tsuneyasu Nohara

Yoshiaki Miyazato

Tsutomu Hibi

Shinichi Ishii

Akira Ohnuki

Akira Hidaka

The present invention includes a link mechanism including a movable member, a first coupling shaft, a first coupling member, a second coupling shaft, a second coupling member, and a third coupling shaft. When the movable member moves to a predetermined engagement position, a straight line connecting the first coupling shaft and the second coupling shaft to each other in a plane orthogonal the first coupling shaft and the second coupling shaft and a straight line connecting the second coupling shaft and the third coupling shaft to each other in a plane orthogonal the second coupling shaft and the third coupling shaft are orthogonal to each other.

Workpiece conveying apparatus and mounting and dismounting support mechanism for a workpiece holding device thereof

A workpiece conveying system for a transfer press machine includes: a beam provided to extend in a feed direction of a workpiece; and a plurality of workpiece conveying apparatus supported by the beam. The workpiece conveying apparatus each include: a feed device including a first carrier that is movable relative to the beam in the feed direction; a raising and lowering device including a second carrier that is movable relative to the first carrier in a raising and lowering direction; a clamp device including a third carrier that is movable relative to the second carrier in a clamp direction of the workpiece; and a workpiece holding tool, which is supported at a distal end of the third carrier, and is configured to hold and release the workpiece.

Workpiece conveying system for a transfer press machine

Provided is a workpiece conveying system configured to convey a sheet-like workpiece to a downstream step, including: a workpiece conveyor configured to lift through attraction holding, by a workpiece holding unit, an uppermost workpiece W of a stack, and convey the uppermost workpiece W of the stack to the downstream step one by one; and a conveyed workpiece number detector configured to detect the number of workpieces W held by the workpiece holding unit at a detection timing, at which the workpiece W held and raised by the workpiece holding unit in accordance with a normal workpiece conveying operation performed by the workpiece conveyor reaches an upper limit position of raising the workpiece W, and at which a moving speed component of the workpiece W in a raising direction is 0.

Workpiece conveying system, conveyed workpiece number detector, and control method for the workpiece conveying system

A workpiece conveyance device includes a base body disposed adjacent to a press machine, a pair of first arms, a pair of second arms, and a first holding portion and a second holding portion independent of each other. Each of the first holding portion and the second holding portion includes a plurality of holding members configured to hold a workpiece W. The first holding portion includes a first support member, a second support member, and an absorption member. The second support member movably supports the first support member along an intersection direction. The absorption member allows movement of the second support member caused in the intersection direction relative to the first support member, and makes it possible for the second support member to return to an initial position in the intersection direction relative to the first support member.

Workpiece conveyance device

Provided is a workpiece holding tool changing system configured to change at least one of a relative position and a posture of a holding tool of a workpiece conveying apparatus with respect to a feed bar. The feed bar includes at least one set among: an X-axis direction linear mechanism with an X-axis linear brake; a Y-axis direction linear mechanism with a Y-axis linear brake; a Z-axis direction linear mechanism with a Z-axis linear brake; and a ball joint portion and a ball brake. Under a state in which inhibition of movement or change in posture by a corresponding brake is canceled, a robot changes the relative position or the posture of the holding tool to a desired relative position or a desired posture. After the change, the workpiece holding tool changing system is brought into a holding state in which the movement or the change in posture is inhibited.

Workpiece holding tool changing system for a workpiece conveying apparatus of a transfer press machine

A workpiece conveying apparatus for a pressing machine includes an arm unit including: a first arm; a second arm; a workpiece holding portion configured to hold a workpiece; a first arm drive mechanism; and a second arm drive mechanism. A pipe or the like arranged on an outer side of a second joint is supported at one side thereof by the first arm, and is supported at another side thereof by the second arm. When the first arm and the second arm are bent and stretched between a folded state and an extended state for workpiece conveyance, the pipe or the like is deformed utilizing a holding angle between the first arm and the second arm so that the pipe or the like is arranged so as to prevent swing of the pipe or the like about the second joint at the time of the workpiece conveyance.

Workpiece conveying apparatus for a pressing machine

Provided is a workpiece conveying apparatus including: two SCARA robots each including: a raising and lowering frame supported on a stationary frame so as to be movable in an up-and-down direction, the stationary frame being mounted to extend along a width direction orthogonal to a workpiece conveying direction of a passage space for conveying a workpiece; a first arm supported on the raising and lowering frame through intermediation of a first joint; a second arm held through intermediation of a second joint; a first arm driving mechanism configured to drive the first arm to rotate; and a second arm driving mechanism configured to drive the second arm to rotate; raising and lowering mechanisms arranged to correspond to the two SCARA robots, respectively, and configured to enable the corresponding raising and lowering frames to mutually independently move in the up-and-down direction; a cross arm; and a cross bar unit.

Workpiece conveying apparatus for a pressing machine with two robots

A workpiece conveying apparatus for a pressing machine includes: a first arm supported so as to be rotatable within a substantially horizontal plane; a second arm supported on the first arm so as to be rotatable within the substantially horizontal plane; a workpiece holding device supported on a distal end side of the second arm so as to be rotatable within the substantially horizontal plane; a first arm drive mechanism configured to drive the first arm to rotate; a second arm drive mechanism configured to drive the second arm to rotate with respect to the first arm; a workpiece holding device rotation drive mechanism configured to drive the workpiece holding device to rotate with respect to the second arm; and a tilt drive mechanism configured to drive the workpiece holding device to rotate with respect to the second arm.

A workpiece conveying apparatus includes: two SCARA robots each including a first arm supported on a raising and lowering frame through intermediation of a first joint, a second arm supported through intermediation of a second joint, a first arm driving mechanism configured to drive the first arm to rotate, and a second arm driving mechanism configured to drive the second arm to rotate; a raising and lowering mechanism for the two SCARA robots; a cross arm configured to couple distal ends of the second arms; a workpiece holding unit configured to releasably hold the workpiece; shifting devices provided to the cross arm and configured to shift a drive-side shifting member; and sliding devices provided to the workpiece holding unit and configured to shift the tool holder by an operation of causing the driven-side shifting member to be driven by the drive-side shifting member.

The workpiece conveying apparatus for a pressing machine includes: a rotary base rotatable about a substantially perpendicular axis; a first arm pivotally supported by the rotary base so as to be rockable within a substantially perpendicular plane; a coupler pivotally supported on a distal end side of the first arm so as to be rockable; a second arm having a proximal end side that is mounted to the coupler so as to be rockable; a cross bar mounted to a distal end side of the second arm so as to be rockable within a plane substantially parallel to a rocking plane of the second arm; and a workpiece holding device mounted to the cross bar.

To provide a work transfer apparatus which can transfer works at high speed with controlling respectively the posture of the right and left of works. The work transfer apparatus includes an arm moving back and forth between machines in order to transfer work(s), a crossbar coupled to the arm, and a pair of right and left work holding devices provided at the left and right sides of the crossbar and tilt drive devices being provided on the arm, respectively controlling the work holding devices to rotate around an axis of a longitudinal direction of the crossbar.

Work transfer apparatus with crossbars and reduction gears

A breakage prevention mechanism is configured to prevent deformation or breakage of a crossbar and transfer the work even in the condition where a pair of left and right arm supporting the both end of the cross bar is displaced beyond assumption. The breakage prevention mechanism is equipped with a pair of arms which is synchronized and moves approximately parallel, and a crossbar bridged between the top end of the arms. Both end of the crossbar and the arm are connected pivotably around two axis. Both end of the crossbar are configured to be slidable against the arm in X axis direction. The plunger is placed between both end of the crossbar and arm, in which protects the crossbar by restraining the pivoting and the sliding of both in the normal condition and releasing the restraint when the unintended force is given.

Breakage prevention mechanism of transfer apparatus and transfer apparatus using thereof

A work transfer apparatus includes an arm to transfer workpieces to be processed into a machine or carry processed workpieces out of the machine, a crossbar coupled to the arm, and right and left holding devices provided at the left and right sides of the crossbar. The crossbar includes an internal member and right and left cylindrical external members. One of the external members is rotatably provided around an outer surface of the internal member. The apparatus also includes tilt drive devices provided to the arm and connected with the external members. One of the tilt drive devices rotates one of the external members around an axis of a longitudinal direction of the crossbar independently of another of the external members.

Work transfer apparatus with crossbar members

A breakage prevention mechanism includes a pair of arms which is synchronized and moves approximately parallel, and a crossbar bridged between the top end of the arms. Both end of the crossbar and the arm are connected pivotably around two axis. Both end of the crossbar are configured to be slidable against the arm in X axis direction. A plunger is placed between both end of the crossbar and arm, which protects the crossbar by restraining the pivoting and the sliding of both in the normal condition and releasing the restraint when the unintended force is given.

Breakage prevention mechanism of a transfer apparatus and transfer apparatus use of the breakage prevention mechanism

A removably supporting mechanism is provided for a workpiece holding device that can hold and release a workpiece. The workpiece holding device is removably supported on a crossbar extending substantially orthogonal to a workpiece conveying direction of a press machine. The removably supporting mechanism has a guide pin and a guide pin hole. The guide pin is fittable into and engageable with the guide pin hole. One of the guide pin and the guide pin hole is disposed on the workpiece holding device side, whereas another of the guide pin and the guide pin hole is disposed on the crossbar side. The guide pin and the guide pin hole can perform alignment of the workpiece holding device and the crossbar in a direction substantially orthogonal to an inserting direction of the guide pin.

Growing community of inventors

Kanagawa, Japan

Keisuke Takeda