JPH06328164A - Automatic die changing device - Google Patents

Abstract

PURPOSE:To shorten the change loading time by having an ascending and descending guide to introduce the loading position of die on the upper part inside a die changing device, providing a guide movable up and down to introduce the position of the die changing device outside this device and providing the groove for inserting the guide on the lower side inside the device. CONSTITUTION:A self die changing device 6 moves parallel to a press machine along a die changing rail, moves inside the press machine along a rain for entering inside the press machine and conveys in and out a die 4. The self die changing device 6 moves to the die position of following production through a wheel driven with motor and a positioning device 1 fixes the self die changing device 6. When the self die changing device is moved at a prescribed position, a positioning cotter 10 is inserted into a guide groove 2 closed with a guide wheel 13 with a hydraulic cylinder 11, and the position of the self die changing device is corrected and fixed. Therefore, the die can be changed from a die storing place until the press machine by using an automatic crane, and the parallel movement and the space conveyance of the die can be combined.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to transfer and transfer of molds in a machine that uses molds, and more particularly, to a mold exchanging device for a press machine for the automobile industry that handles many kinds of molds. It is about.

[0002]

2. Description of the Related Art The die transfer work using an overhead crane is
It requires a lot of time and labor for the operator, and it takes a considerable amount of time to perform the work such as the replacement of the mold and the storage work, and the work of a large and heavy product is difficult. Especially in the case of various types of small-quantity production, set-up replacement is frequently performed, so that shortening of die replacement time and reduction of load on workers are important issues in terms of improving production efficiency. As disclosed in Japanese Utility Model Publication No. 62-43616 and Japanese Utility Model Publication No. 60-146535, as an automatic die replacement method for solving the above problems,
There is a method of automatically moving a mold horizontally from a mold storage area on the machine side and transferring the mold to the mold exchanging device by using a lifting free roller and a mold transfer connecting arm in the mold exchanging device.

[0003]

In the above example, the transfer from the mold storage on the press side to the mold changing device is automatic.
Hand work using an overhead crane is the main method for handing molds between the mold changer that goes in and out of the press machine and the mold storage area, and between the mold storage area on the press machine side and the mold storage area. ing. As described above, there is a problem that an operator is troublesome and a long setup time is required when using the overhead crane. The present invention solves the above-mentioned problems of the present situation, and an object of the present invention is to provide a mold exchanging device capable of transferring a mold using an automatic crane.

[0004]

In order to achieve the above-mentioned object, the present invention is a mold exchanging device which can freely move in and out through a traveling rail and can be detachably fixed to a die for a press machine. In the above method, a positioning device capable of guiding the mold to the mold position fixing mechanism and a positioning device capable of moving up and down from the ground are inserted into the rough positioning groove of the common plate attached to the mold. It is characterized in that it is inserted into a guide groove at the bottom of the mold exchanging device.

[0005]

According to the present invention, as shown in the drawing, the positioning device 1 which can be moved up and down installed at the stop position of the automatic mold changing device 6 is inserted into the guide groove 2 at the lower part of the automatic mold changing device 6 to automatically transfer the mold. Improves the stopping accuracy of the mounting machine and prevents blurring when transferring the mold. Guide the mold to the mold position fixing mechanism on the upper surface of the mold automatic changing device by inserting the mold rough positioning guide 3 housed in the mold automatic changing device and moving up and down into the groove formed in the lower part of the mold 4. Can be easily performed and high-accuracy transfer is possible. By combining an automatic crane and the automatic mold changing device of the present invention, it is possible to completely automate the transfer of the mold from the storage place to the press machine.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. The automatic mold exchanging device 6 moves along the mold exchanging rail 7 in parallel with the press machine 8, moves along the in-press machine approach rail 9 into the press machine 8, and carries in or out the mold 4. . The automatic die changer 6 moves to the next production die position through the motor-driven wheels, and the positioning apparatus 1 fixes the automatic die changer 6. Positioning cotter 10 on the ground side, hydraulic cylinder 11 for moving it up and down, and frame 12 for mounting it
Is installed. A guide groove 2 for inserting the positioning cotter 10 and a total of four guide wheels 13 in the front, rear, left and right directions are attached to the automatic die changing device 6. When the automatic mold changing device 6 moves to a predetermined position, the positioning cotter 10 can be inserted into the guide groove 2 surrounded by the guide wheels by the hydraulic cylinder 11 to correct and fix the position of the automatic mold changing device 6. The rough mold positioning guide 3 provided in the automatic mold exchanging device 6 includes a hydraulic cylinder 14 on the ground side.
The spring 15 can be freely moved up and down, and the die transfer position can be corrected by inserting the conical tip 16 into the groove 5 at the bottom of the die.

FIG. 2 shows an example of transfer using an automatic crane. When the mold is transferred from the upper side to the mold automatic changing device 6 by the automatic crane 17, the cylinder 14 is lowered, the guide 3 is stored in the mold automatic transferring device 6, and the mold transferring device 6 is moved. After traveling to a predetermined position, the mold automatic transfer device 6 is fixed by the positioning device 1. Then cylinder 14
This causes the guide 3 to rise. The mold position is forcibly corrected by lowering the mold along the guide 3, and the mold 4 is set on the mold positioning key 18. The die positioning key 18 is provided with a cross key 19 at the center of the die automatic transfer machine (see FIG. 3) so that the die does not shift in the longitudinal and width directions. It guides with high accuracy and fixes the transfer position.

FIG. 3 shows an example of transfer using a free roller conveyor. The die automatic transfer device 6 is equipped with a die lifter 20 having a free roller that can be raised and lowered, and a pusher 22 with a hook and a die lifter 20 are inserted from a die storage 21 on the machine side having a transfer mechanism. Die changer 2 equipped
3 can move the mold in parallel. The die lifter 20 is hydraulically moved up and down, and coupling with a supply source is performed by using an auto coupler 24, and is automatically attached and detached. Since the automatic die changer of the present invention runs in parallel and at right angles to the press machine and also moves in and out of the press machine, it is necessary to eliminate wiring and piping in the automatic die changer as much as possible. was there. For this reason, the rough mold positioning guide is installed in the automatic mold changing device, and the lifting device is installed on the ground side to eliminate piping such as hydraulic pressure to the automatic mold changing device. It should be noted that the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0009]

As described above, according to the automatic die changer of the present invention, (1) the die can be exchanged from the die storage to the press machine by using the automatic crane, and the burden on the operator is reduced. it can. (2) By combining the parallel movement of the mold using the die lifter of the present apparatus and the space transfer using the automatic crane, it is possible to obtain an excellent effect such as a reduction in transfer time.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an automatic die transfer machine of the present invention.

FIG. 2 is a vertical cross-sectional view showing an example of die transfer using an automatic crane using the die automatic transfer machine according to the present invention.

FIG. 3 is a plan view showing the arrangement of the automatic die transfer machine of the present invention and the press machine, and the arrangement of the machine side die storage with the transfer machine.

[Explanation of reference numerals] 1 positioning device 2 guide groove 3 rough mold positioning guide 4 mold 5 groove part 6 automatic mold changing device 7 mold replacement rail 8 press machine 9 press-in rail 10 positioning cotter 11 hydraulic cylinder 12 Frame 13 Guide Wheel 14 Hydraulic Cylinder 15 Spring 16 Conical Tip 17 Automatic Crane 18 Mold Positioning Key 19 Cross Key 20 Die Lifter 21 Machine Side Mold Storage 22 Hook Pusher 23 Die Changer 24 Auto Coupler

Claims (1)

[Claims] 1. A mold exchanging device which is self-propelled through a traveling rail or the like and which takes a mold in and out of a press machine. An elevating guide for guiding a mold loading position is provided in an upper part of the mold exchanging device. And a guide capable of moving up and down for guiding the position of the mold exchanging device is provided outside the device of the mold exchanging device, and a groove for inserting the guide is provided in the inner lower part of the mold exchanging device. Automatic mold changer.