JPS58187216A - Symmetrically arranging system of segmental die - Google Patents

Abstract

PURPOSE:To provide exchanging and arranging systems of a titled segmental die which is capable of automatically exchanging dies and reducing the number of die exchanges and the time of die exchange, by providing two sets of die clamping devices capable of attaching and detaching the dies placed at the left and right sides at the same time from the center of a bending device, to and from the exchanging device. CONSTITUTION:The operations for symmetrically arranging dies by an automatically die exchanging device 11 are to hold segmental dies 15 by die attaching and detaching devices 31 and to move the dies 15 to the die arranging positions for a bending device 21 by a driving device 12. At this time, the moving quantity is adjusted so that there is no contact but no gap between segmental dies 19 attached previously to the device 21 by attaching operations and the segmental dies 15, 15 to be newly attached. Further, the center of the device 21 and the original point of the shaft of the device 11 for moving horizontally the dies are set to the same position, and furthermore, the device 12 for moving the left and right devices 31 reversely in the horizontal directions and by the same moving quantity, and left and right screwed rods 14 are provided, respectively. Therefore, in arranging the positions of the dies 15, when either of the left and right dies is positioned accurately, the other is automatically positioned accurately at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic mold changing device for removing a mold from a plate bending device, and in particular, it is necessary to prepare a mold corresponding to a bending device. This invention relates to a split mold exchange arrangement system suitable for mold exchange.

In the conventional mold exchange method, as shown in Fig. 1, factor 2, large and small molds -4, 5, 6,
7 is attached to the bending fixture f1 from one direction and combined to obtain the required mold length. These molds 4, 5, 6.7
When attaching to the bending device L, align the center of the bending device AT with the center of the combined dimensions of the molds 4, 5, 6. This is because it is the best method when the shape of the ellipse is the same as above.

If the workpiece 2 changes and the bending length changes in this way of arranging the tE rice, the assembly of the mold changes and the arrangement changes as well, resulting in the attachment and detachment of all the V shapes. It is difficult to automate the attachment and detachment of various molds like this. Fig. 2 6 is a cross section of ^-A' in Fig. 1, which shows the bending process P$lJ2'c with the conventional bending device 1, and the bending operation is
The /70 workpiece 2 is attached manually to the upper beam 8 of the V45R bending device 1, and the mold 4 and base 9 are used to harden the workpiece 2 (one rotation and bend the workpiece 2).

To replace the mold, remove all molds 4 from upper beam 8.
, 5, 6.7, and add a new necessary mold again and install it. As described above, the conventional mold changing method required a great deal of labor and manual labor.

The purpose of the present invention is to eliminate the defects in the previous station, automate die exchange, and shorten the number and time of die exchange. An object of the present invention is to provide a method for exchanging and arranging divided molds in an automatic mold father image device equipped with a mold clamping device.

The mold is divided into lengths that can be transported by an automatic mold changer, and a pair of divided molds of the same shape are created.

The length and the number of sets of the pair of split molds are such that the dimensions after combining the split molds satisfy the bending length of a plurality of target workpieces. In addition, a pair of split molds are installed sequentially on both sides of the bending device using automatic mold changing equipment that has its origin at the same position as the center of the bending device, and the curve of the workpiece is adjusted to the length of the mold corresponding to the length. Can be combined with What is the order in which these split molds are combined? Should I replace the split molds at both ends or remove them or use another split mold in order to accommodate changes in the bending dimensions that correspond to changes in the bending workpiece? It can be handled simply by adding it, reducing mold replacement time.

The present invention is a symmetrical arrangement method of split molds, in which the bending shape of the workpiece, especially the shape of the rising edge after bending, is made uniform by accurately symmetrically arranging the molds.

Embodiments of the present invention will be explained with reference to FIGS. 3, 4, 5, 6, 7, and 8. FIG. 3 is a diagram showing 15 split crabs arranged symmetrically in the bending device 21 in the 11-work mold holder 11 of the present invention.

The own mold changing device 111 includes two mold attachment/detachment devices 31 or two for conveying the divided molds 15 and 15', and this? A drive device 12 that moves in an array 1"l#1 of each division mold 15, a hole screw 14, a guide guide 16 supporting these, and a support column 1.
It is acidified more dilutely than 7.

FIG. 4 shows a device I for bending a split mold 15 using a mold attachment/detachment device 31.
FIG. 3 is a sectional view taken along line cc' in FIG. 3, showing the V21 being attached to the upper beam 22; 1 splitting table is installed in the mold attachment/detachment device U.
Clap 32 that grips five pieces, and a slash 33 that makes the entire surface ψ,
A detachable arm drive device 34 that moves this arm 33 back and forth,
And said in one piece? It is composed of a moving device 35 that moves the supporting melon guide 16♀.

The bending device 1f21 has an upper beam 22 on which a mold is attached.
It is composed of a mold fixing plate 27 for completely fixing the attached mold, a cylinder 26 for lowering it, a pet 23, and a bed/drift board 4 for bending the plate material.

The automatic mold changer 111 allows for a compact symmetrical array operation.
Split mold 15? It is gripped by the mold breaking device jiL± and moved by the drive device 12 to the arrangement position on the bending device 21. The amount of movement to this alignment position # is 1 so that the split mold 19 installed on the bending device 21 in the previous mounting operation and the newly installed split mold 15.
−. Center of bending device 21 and automatic mold change device 11
The origins of the left and right movement axes are set at the same position, and the drive device 12 and the left and right ball screws 14 are provided so that the left and right mold attachment/detachment devices 31 move the same amount of movement left and right in the opposite direction from this origin. There is. Therefore, if the arrangement position of the split molds 15 is accurately positioned in either the left or right side, the other can be accurately positioned at the same time.

In order to attach the split mold 15 to the bending device [21], the clamp 3, which is integrated with the scrap removal arm drive device &34, is attached.
2, the arm 33, and the detachable arm drive device 34 itself? It moves in the direction of the bending device 21, that is, in the forward direction. The arm 33 is attached to the moving device i1 [35 so that it can be moved forward and backward. Since the split mold 15 is attached to the upper beam 22 of the bending AIIt 21, the Vζ mold fixing plate 27
Using the Kurano ring 26, pull it up as shown in Fig. 45. Next, move the arm 33 further toward the Au side and attach the split mold 15 to the asonog beam 22 in the same way as the split mold 19. After that, the mold II'lj'IF is made according to 1 shown in No. 6IA.
! , the pressing bar is fixed to the split mold 155r on the grate 27 by the cylinder 26.

In this way, the divided molds 19, 15, 2 (1-1-as shown in FIG. repeat.

Split molds 19, 15.2 (When detaching, use the mounting extension hand j-.) Move the mold attachment/detachment device 1J to the mounting position of the split mold and the detachment position of the N-electrode, Bending device 21
Pull the mold fixing plate 27 and remove the arm 4i1/
] With blood loading 34, move to the front of Clap 7 22, grasp the split mold, and press Clafugu 22? Return it and complete the escape.

In this way, in the present invention, the center position of the bending device υ and the center position after the combination of the split molds are automatically aligned. It is possible to increase the bending shape of the workpiece, and at the same time
Since one set of separate molds can be installed and removed, the time required to replace molds can be shortened. Next, the effect when bending workpieces having many types of bending lengths will be explained using the bending method for the υ-loed product A41 and the D-loed product B42 shown in FIGS. 8(a) to 8(e). Fig. 8(b) is a front view, (C) is a side view, (d) is a front view of workpiece ■3, and (e) is a side view thereof? show. 71to construction A41
Bending TP work completed +4, jJoT thing B4 physical 41 songs,
First of all, Qllll case A41? Split mold 1 on both sides of mold 18
9, 15.20 is installed for the first time and the combination is completed.Workpiece. A 4 Work on the 1st song. Next, workpiece B4 2'
! (In case of bending, the work can be done by simply removing the split mold 20. In this way, if you consider the arrangement method of the split molds according to the bending length of the workpiece, all the combined split molds It is not necessary to change the mold, and the time for changing the mold can be further reduced.This is because the split molds are arranged symmetrically, and the center of the bending device and the center of the split mold after assembly are not the same. .

It is explained that the 161" type 18 cage is attached to the middle and end of the bend & T device l121. This is because when bending a long 7J11 workpiece, it is possible to reduce the number of 711t parts of the split mold. It is important to be sure to attach short glue 11 when bending the workpiece, and in the case of the heather embodiment, it should be a mold that can be attached to the center of the seam (k141), and it should be attached and detached by hand in advance. As explained in
Only one of the hole screws 14 attached to l12? #tA#IjJ If you modify it as much as possible, you can use it as a split mold, and one of the pair of split molds held as a fixed mold can be automatically installed in the center of the mounting [21], which will produce even more effects. do.

On the other hand, as shown in FIG. As shown in the figure after one bend, the corner sE of the target workpiece 43 is in close contact with the side bent exactly in the direction 1. The part may vary depending on the repulsive force of the plate material.
spread. This may be due to the bending pressure at the middle and upper part of the bending device, or because the moving sides are relatively soft and strong at the center.
Bow the pen leaf 24 as shown in figure 0! : If you change the shape and bend it like JK, the bending pressure in the center will increase and the force will be uniform when bending, and will the shape precision of the bending be more accurate? I can raise it. As shown in Figure 11, if the mold is not installed symmetrically around the center of the device 21, the bending pressure will not be uniform and a gap G will occur between the gap G and the previously bent side. Shape degree is not improved. Also, as shown in Fig. 11, even if the bend 1 and 24 are deformed, the target workpiece 44 is shifted from the center, so there is no pressure? It is difficult to achieve uniformity.

Split mold like this? Symmetrical alignment is important when bending plate materials.

According to the present invention, by symmetrically arranging the mold exchange to the bending device, there is an effect of making the bent portion uniform.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating the entire method of installing a mold in a conventional bending machine, and FIG. 2 is a sectional view taken along the line A'. Third
Figure 4 is a diagram illustrating an overview of the apparatus of the present invention and a symmetrical arrangement 7J type t. Figure 4 is a sectional view taken along line CC' in Figure 3, and the part between the split molds shows the attachment mechanism to the apparatus. . Figure 5. 6- shows the procedure for installing the split molds, and FIG. 7 is a diagram showing the completed combination of the split molds. FIG. 8 is a diagram illustrating a method for replacing split molds in response to changes in the workpiece. Is Fig. 9 and Fig. 1 the device of the present invention?
What are the characteristics of convenient symmetrical arrangement of split molds? FIG. Is Figure 11 a symmetrical arrangement 11? Don't do it fc
An example of friction is shown below. 11... Automatic mold exchange device, 12... Drive device, 1
4...Ball screw, 15...Divided mold, 16
... Guide, 17 ... Support, 21 ... Bending device,
22...Upper beam, 26...Cylinder, 2
7... Mold fixing plate, 31... Mold attachment/detachment device,
32... Clamp, 33... Arm, 34... Detachable arm drive device, 35... Moving device 1! F 1 mouth 20th vine 3 Figure 1 5th mouth 1 Q 1゛7th mouth

Claims (1)

[Claims] 1. In a mold changing device that holds all the divided molds of a bending device that bends sheet materials such as steel plates and attaches and detaches them to the bending device, the drive device that drives each of the two mold clamp devices symmetrically. A symmetrical arrangement method of split molds.