JPS5858941A - Idle work supporting device for transfer press - Google Patents

Abstract

PURPOSE:To shorten time required for changing and to secure safety, by attaching a work supporting stand of an idle station to a bolster or a die to be changed. CONSTITUTION:After completion of all press working of a work 2 being carried, bolsters 7, 8 in a transfer press 1 are driven by a driving cylinder 25 and turn the work supporting stand 15 of idle stations 4a, 4b, 4c to make it parallel to the sides of bolsters 7, 8 and take out to opposite side of bolsters 11, 12 which are standing by. Bolsters 11, 12 are put in the transfer press 1 and the work supporting stand 15 is turned by driving of the driving cylinder 25 to enable to hold the idle work. Since a work supporting stand suitable for the shape of work which is to be carried next can be prepared beforehand at the ouyside of the transfer press, change of work supporting stand can be performed simultaneously with change of dies, and thus time required for changing can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an idle work support device in a transfer press.

(General K.) In transfer presses, idle stations may be formed between each processing station or before and after each processing station. For example, in a transfer press where two machining stations can be installed, there are actually three machining stations and places where there are seven machining stations left. Even in that case, the workpieces that are sequentially transported to the idle station
Furthermore, if the type of workpiece changes, the workpiece support at the idle station must also be replaced when replacing the bolster and mold.

Therefore, in the past, IQK was used to replace the bolster and mold.
, a worker enters the transfer press and replaces the workpiece support at the idle station, but although the transfer press is equipped with safety devices, the danger of the replacement work cannot be denied, and the There is a problem in that the operation of the machine must be stopped until the work is completed, which increases setup time and reduces productivity.

In view of the above, the present invention has an advantage of attaching the work supporting stand of the idle station to the bolster case or die to be replaced, and the workpiece supporting base of the idle station is attached to the bolster case or the die to be replaced. To provide an idle work support device for a transfer press, which allows a work support stand to be prepared according to the shape of a workpiece, and allows the work support stand of an idle station to be replaced at the same time as a mold.

The configuration of "hereinafter referred to as "non-explosion" will be explained based on the drawings for an embodiment.

Reference numeral 1 denotes a transfer press, in which a plate-shaped workpiece 2 is sequentially conveyed from left to right in FIG. A front idle station 4a is located before the first processing station 3a, an intermediate idle station 4b is located between the second processing station 3b and the third processing station 3c, and next to the third processing station 3d. In other words, in the transfer press 1, 5 is a bed, 6 is provided with a rear idle station 4c.
is a support, and each of the above-mentioned idle stations 4a, 4b
, 4c are pillars 6 when looking at the transfer press 1 from the side.
It is located in a blind spot. In addition, 7 is the bolster to which the molds 9a and 9b of the second machining station 6b are attached, and 8 is the metal mold of the third machining station 6C and the third machining station 3d. This is a bolster with types 9c and 9d attached, and both bolsters 7
．． Idle work support device 1 is installed on the front and rear sides of 8.
0 is attached.

Furthermore, K and 11.12 are provided with bolsters used for press processing of a workpiece of a different type from the workpiece 2 being transported to the transfer press 1, and are connected to each processing station 3, respectively.
A, 3b machining 3c, 3d compatible through molds 13a, 1
3b and back 13c, L5d and an idle work support device 10 are attached, and are kept on standby on one side of the transfer press 1 for a different type of work to be transferred next. Note that the work 2 in this example is a roof panel of a cab-over-pan type vehicle.

In the idle work support device 10, 15 is a work support stand, and in this example, as shown in FIGS. 2 and 3, it includes a pipe-shaped frame 16, a mounting base 17 fixed to the frame 16, and a Nest 1 attached to mounting base 17
8, and the work support stands 15 are provided at two locations on the left and right sides of the bolster side, and are rotatable.

That is, the frame 16 has a vertical part connected to one end of the horizontal part with the vertical part facing downward, and the lower end of the vertical part connects the bushing 20 to the support tube 19 attached to the side surface of the bolsters 7, 8, 11, and 12. The mounting base 17 is fixed to the end of the horizontal portion. A mounting hole 21 is provided at the end of this horizontal part and the mounting base 17, passing through both vertically.
is opened, and the nest 18 is supported on the mounting base 17 by inserting the rod 22 with its lower surface x and v protruding into the mounting hole 21 [7].

Then, parallel links 23.26 of equal length are protruded from the vertical parts of the left and right frames 16.16, and both parallel links 23.23 are connected by a connecting rod 24,
The piston rod 2 of the driving cylinder 25 is attached to the connecting rod 24.
6 are connected, and the cylinder 27 of the driving cylinder 25 is
Bolster 7.8, support bracket fixed to lL12) 2
8, and the workpiece support base 15 is rotated by the movement of the piston rod 26.

In the above embodiment, the workpiece 2 is the transfer press 1
Each station is sequentially conveyed one by one to the front idle station 4a to the first idle station 4c, and is transferred to the first to first processing stations 3a to 6d.
They undergo different pressing processes in sequence. Then, if a workpiece different in type from the currently transported workpiece 2 is scheduled to be transported next, preparations for making the transfer press 1 correspond to the workpiece to be transported next are carried out on the transfer press 1.
In other words, a bolster 11 is installed on one side of the transfer press 1.
．． 12 on standby separately, and the first on both bolsters 11 and 12.
Through mold 1 corresponding to the first to third processing stations 3a to 6d
3a, 13b and the workpieces 16c and 113d are attached, and a nest 18 for placing the next work to be transported on the mounting base 17 of the idle work support device 10 is also attached.

Then, after all the press processing of the workpiece 2 currently being conveyed is completed, both the bolsters 7.8 in the transfer press 1 are moved to each idle station 4a, 4b by the drive #IJ of the drive cylinder 25.

Rotate the work support stand 15 of 4C so that it is parallel to the side surface of each bolster 7.
1. Move to the opposite side of 12. Then, the standby bolsters 11 and 12 are put into the transfer press 1, and the drive cylinder 25 is driven to move the work support stand 15 forward so that it can support an idle work.

In addition, front and rear idle stations 4a% 4
In c, the work support stand 15 is provided only on one side of the work 2 in the illustrated example, but there is a separate casing on the other side.The pollsmere taken out to the outside of the transfer press 1, 8, is further transported to the next step. The workpiece is prepared in the same way as above, ie, the mold machining nest is changed and put on standby.

Incidentally, in the above embodiment, the idle work support device d10
was attached to the bolster, but it also works if attached to the mold.

Further, the work support stand 15 is connected to the transfer press 1
Although it is made rotatable in order to prevent it from hitting the support column 6 when going in and out of the workpiece, consideration should be given to the contact between the workpiece support and the support column 6, for example, when the Fm station 3d becomes an idle station. If there is no need to do so, the workpiece support may be fixed in a protruding state relative to the bolster.

Further, in the above embodiment, one side of the workpiece is supported by the valley work support stand 15, but the horizontal part of the frame 16 is extended long, and nests for supporting both sides of the workpiece are attached to the horizontal part. Good too. Further, the workpiece support stand may be one in which the frame and the nest are integrated.Furthermore, the workpiece support stand may support the workpiece by placing it on the horizontal part of the frame without attaching the nest. You can also do this.

As mentioned above, according to the misfire 8AK, since the work support stand of the idle station is attached to the bolster or mold to be replaced, the workpiece can be adjusted in advance outside the transfer press according to the shape of the next workpiece to be transported. Since the support table can be prepared, the workpiece support table can be replaced at the same time as the mold of the transfer press, which greatly reduces the time required for replacement, and eliminates the need for work inside the transfer press, which saves the operator time. The excellent effect of ensuring the safety of

[Brief explanation of drawings]

The drawings illustrate embodiments of the present invention; FIG. 1 is a schematic plan view of a transfer press showing the support columns in cross section, FIG. 2 is an enlarged plan view of the idle work support device with the nest removed, and FIG. FIG. 3 is a sectional view taken along line mm in FIG. 2. 1...Transfer press, 2...Work, 3a-3d...Processing station, 4a
~4c...Idol Station, 5...
... Bed, 6... Support, 7.8.11.12
・・・・・・Bolster, 9a-9d, 13a-13d・
... Mold, 10 ... Idle work support device, 15 ... Work support stand. Patent applicant: Toyo Kogyo Co., Ltd.

Claims (1)

[Claims] (1) In a transfer press in which multiple molds are attached to a bolster on the bed and the workpieces are sequentially conveyed for press working, the workpiece support at the idle station is installed between, in front of, or behind the processing stations. An idle work support device for a transfer press, characterized in that a stand is provided on a bolster or a die to be replaced, and the work support stand is replaced at the same time as the die.