Workpiece conveying apparatus for a pressing machine

Patent metadata

Field	Value
Publication number	US-10293444-B2
Application number	US-201816001573-A
Country	US
Kind code	B2
Filing date	Jun 6, 2018
Priority date	Jun 14, 2017
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

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.

First claim

What is claimed is:

1. A workpiece conveying apparatus for a pressing machine, comprising:
a first arm supported at a proximal end side thereof through intermediation of a first joint so as to be freely rotatable within a substantially horizontal plane;
a second arm supported at a proximal end side thereof on a distal end side of the first arm through intermediation of a second joint so as to be freely rotatable within the substantially horizontal plane;
a workpiece holding device, which is supported on a distal end side of the second arm through intermediation of a third joint so as to be freely rotatable within the substantially horizontal plane, and is configured to releasably hold the workpiece;
a first arm drive mechanism, which is configured to drive the first arm to rotate about the first joint;
a second arm drive mechanism, which is configured to drive the second arm to rotate about the second joint with respect to the first arm;
a workpiece holding device rotation drive mechanism, which is configured to drive the workpiece holding device to rotate about the third joint with respect to the second arm; and
a tilt drive mechanism, which is configured to drive the workpiece holding device to rotate about a long axis of the workpiece holding device through intermediation of a fourth joint with respect to the distal end of the second arm.

2. A workpiece conveying apparatus for a pressing machine according to claim 1 ,
wherein an electric motor being a drive source of the workpiece holding device rotation drive mechanism is mounted to the vicinity of the second joint, and
wherein a transmission system of a driving force from the electric motor to the workpiece holding device is accommodated on an inner side of the second arm.

3. A workpiece conveying apparatus for a pressing machine according to claim 1 ,
wherein an electric motor being a drive source of the tilt drive mechanism is mounted to the vicinity of the second joint, and
wherein a transmission system of a driving force from the electric motor to the workpiece holding device is accommodated on an inner side of the second arm.

4. A workpiece conveying apparatus for a pressing machine according to claim 1 , wherein the workpiece is placed to a downstream step by the tilt drive mechanism under a state in which a workpiece holding surface of the workpiece holding device is inclined with respect to the substantially horizontal plane.

Assignees

• Aida Eng Ltd

Inventors

• Takeda Keisuke

Classifications

• B65G47/1485

  using suction or magnetic forces · CPC title

• B25J17/0258

  Two-dimensional joints · CPC title

• B21D43/18 Primary

  by means in pneumatic or magnetic engagement with the work · CPC title

• B21D43/05

  specially adapted for multi-stage presses {(B21D43/145 takes precedence)} · CPC title

• B65G47/914

  provided with drive systems incorporating rotary and rectilinear movements · CPC title