Transfer device of multistage forging press machine

Patent metadata

Field	Value
Publication number	US-10857585-B2
Application number	US-201715602207-A
Country	US
Kind code	B2
Filing date	May 23, 2017
Priority date	May 26, 2016
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

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.

First claim

What is claimed is:

1. A transfer device of a multistage forging press machine, the transfer device being provided in the multistage forging press machine in which a plurality of forging portions are provided side by side in a horizontal direction so that a workpiece is conveyed sequentially from one of the forging portions to a next one, the transfer device comprising:
a base plate that includes a support surface extending in the horizontal direction and a vertical direction;
a first plate comprising a surface that is slidable and movable along a guide rail provided on the support surface of the base plate;
a second plate that is slidable and movable along an other guide rail provided on an other surface of the first plate that faces an opposite direction from a direction that the surface of the first plate faces the support surface, one of the first plate and the second plate being movable in the horizontal direction and an other one of the first plate and the second plate being movable in the vertical direction;
a plurality of chuck units that are attached to the second plate to hold the workpiece;
a horizontally driving servo motor that drives the one of the first plate and the second plate in the horizontal direction;
a vertically driving servo motor that drives the other one of the first plate and the second plate in the vertical direction,
wherein the horizontally driving servo motor is connected through a link mechanism to the one of the first plate and the second plate that is slidable and movable in the horizontal direction, and the vertically driving servo motor is connected through another link mechanism to the other one of the first plate and the second plate that is slidable and movable in the vertical direction, and
wherein the vertically driving servo motor is attached to the base plate in an opposite position to the first plate with respect to the base plate so that an output shaft of the vertically driving servo motor extends in the vertical direction; and

a rocking member including a holding arm and an extended lever extending in an opposite direction from the holding arm,
wherein the holding arm is connected to the other one of the first plate and the second plate, and the extended lever is connected to a nut attached to the output shaft of the vertically driving servo motor, such that by a movement of the nut in a first direction, the rocking member swings to move the other one of the first plate and the second plate in a second direction that is opposite to the first direction.

2. The transfer device of the multistage forging press machine according to claim 1 , further comprising:
a rotational moving unit that rotates the base plate around an axis line in the horizontal direction so that the plurality of chuck units are rotated and moved together with the base plate.

3. The transfer device of the multistage forging press machine according to claim 2 , wherein the rotational moving unit has a rotatable range of up to approximately 180° so that the chuck units are reversed in an opposite position to the forging portions with respect to the axis line.

4. The transfer device of the multistage forging press machine according to claim 1 , wherein the other surface of the first plate extends parallel to the surface of the first plate.

5. The transfer device of the multistage forging press machine according to claim 1 , wherein the other surface of the first plate and the surface of the first plate extend in the vertical direction.

6. The transfer device of the multistage forging press machine according to claim 1 , wherein the other surface of the first plate and the surface of the first plate extend parallel to the support surface.

7. The transfer device of the multistage forging press machine according to claim 1 , wherein the other surface of the first plate and the surface of the first plate extend parallel to the support surface in the vertical direction.

8. The transfer device of the multistage forging press machine according to claim 1 , wherein a surface of the second plate, which faces the other surface of the first plate, is slidable and movable along the other guide rail.

9. The transfer device of the multistage forging press machine according to claim 8 , wherein the chuck units are disposed on an other surface of the second plate which faces an opposite direction from a direction that the surface of the second plate faces the other surface of the first plate.

10. The transfer device of the multistage forging press machine according to claim 9 , wherein the other surface of the second plate extends parallel to the other surface of the first plate.

11. The transfer device of the multistage forging press machine according to claim 9 , wherein the surface of the second plate, the other surface of the second plate, and the other surface of the first plate extend in the vertical direction.

12. The transfer device of the multistage forging press machine according to claim 9 , wherein the surface of the second plate, the other surface of the second plate, and the other surface of the first plate extend parallel to the support surface.

13. A multistage forging press machine, comprising:
a plurality of forging portions provided side by side in a horizontal direction so that a workpiece is conveyed sequentially from one of the forging portions to a next one; and
a transfer device, comprising:
a base plate that includes a support surface extending in the horizontal direction and a vertical direction;
a first plate comprising a surface that is slidable and movable along a guide rail provided on the support surface of the base plate;
a second plate that is slidable and movable along an other guide rail provided on an other surface of the first plate that faces an opposite direction from a direction that the surface of the first plate faces the support surface, one of the first plate and the second plate being movable in the horizontal direction and an other one of the first plate and the second plate being movable in the vertical direction;
a plurality of chuck units that are attached to the second plate to hold the workpiece;
a horizontally driving servo motor that drives the one of the first plate and the second plate in the horizontal direction;
a vertically driving servo motor that drives the other one of the first plate and the second plate in the vertical direction,
wherein the horizontally driving servo motor is connected through a link mechanism to the one of the first plate and the second plate that is slidable and movable in the horizontal direction, and the vertically driving servo motor is connected through another link mechanism to the other one of the first plate and the second plate that is slidable and movable in the vertical direction; and

a rocking member including a holding arm and an extended lever extending in an opposite direction from the holding arm,

wherein the holding arm is connected to the other one of the first plate and the second plate, and the extended lever is connected to a nut attached to an output shaft of the vertically driving servo motor, such that by a movement of the nut in a first direction, the rocking member swings to move the other one of the first plate and the second plate in a second direction that is opposite to the first direction.

14. The multistage forging press machine according to claim 13 , wherein the vertically driving servo motor is attached to the base plate in an opposite position to the first plate with respect to the base plate so that an output shaft of the vertically driving servo motor extends in the vertical direction.

Assignees

• Daido Steel Co Ltd
• Sakamura Hot Art Co Ltd

Inventors

• Hayashi Hideaki
• Miyano Shinichi
• Enomoto Daisuke
• Taniguchi Masahiro
• Enomoto Minoru

Classifications

• B21K27/04 Primary

  allowing successive working steps · CPC title

• H02K2201/18

  Machines moving with multiple degrees of freedom · CPC title

• B21J13/085

  handling of tools · CPC title

• B21J9/022

  multi-stage forging presses (handling devices B21K27/00) · CPC title

• B21D43/05 Primary

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