JPS60177926A - Die changing device for multi-stage former - Google Patents

Abstract

PURPOSE:To obtain a changing device that make multi-stage forming advancing a punch case after removing a carrying tray by sliding and fitting a die and punch on the carrying tray carried and fixed in the middle to a die block and a punch case installed at specified fitting part on a base. CONSTITUTION:A die block 5 and a punch case 7 are attached and clamped to a die block fitting stand 2 and a punch case fitting stand 3 on the base 1. A die carrying tray 10 carried and placed on an intermediate positioning guide 11, and a die 12 and a punch 13 placed on it are slid on a fitting parts 14, 15 and contained in the die block 5 and punch case 7, and fitted and clamped. The carrying tray 10 is removed, and the punch case fitting stand 3 is advanced by a cylinder 17, and the multi-stage forming is made by the die 12 and punch 13. When detaching, the carrying tray 10 is placed similarly, and the die 12 and punch 13 are received and carried out. Thus, the change of heavy dies can be carried out simply and smoothly.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is applied to a multi-stage hoist 7 for forging metal products such as screws such as bolts and nuts or various parts using punches and dies. , relates to a device that allows the punch and die necessary for forging to be replaced as a set, as well as the punch case and die block.

Technical Background of the Invention Such a continuous multi-stage punching machine usually has 4 to 5 stages of punching. This is because the dies (molds) are assembled in a row horizontally in a punch case and die block so that they face each other, and the striking action is repeated and repeated tens of thousands of times a day as the ram moves back and forth. The damage and wear and tear are extremely severe, and the molds need to be replaced periodically or every time they are damaged or worn out.

Furthermore, when the type or size of the forged product is changed, it must be converted to a corresponding mold. However, such molds are assembled into the punch case and die block and are firmly fixed, and the opposing parts must be aligned with high accuracy without any deviation.
Replacement and adjustment work requires a great deal of labor and time, and production is halted during this time, which is a serious problem in continuous production operations. Moreover, particularly in the case of large-sized formers, the molds required for them are large and heavy, making it difficult to even easily transport them by hand, which is a major obstacle in improving work efficiency.

Prior Art Prior to the filing of this application, the applicant had filed an application (Utility Application No. 190829/1982) for a method of performing the mold changing operation using a robot device in such a mold changing device. This robot-based device can carry, take out, and insert molds using power, but it requires a special mechanism that allows one-touch operation.
The basic problem of having to stop the machine for long periods of time remains unsolved.

Purpose of the Invention An object of the present invention is to transport a plurality of punches and dies, which are mounted in a row horizontally, onto a set-up jig using a mold transport tray, and insert the punches and dies into a punch case and a die block by external setup. To provide a mold changing device for a multi-stage former, in which each die block can be incorporated into the former main body, thereby facilitating the replacement of punches and dies for large formers, and greatly shortening the time required for replacement. Another purpose is to enable the position of the punch case facing the die block to be moved forward and backward on the set-up jig, so that the centering of the punch and die can be performed easily and with high precision, and the punch case can be moved directly to the homer body. The object of the present invention is to provide a device that can be transported and incorporated into a bottle.

Furthermore, another purpose is to use a die forging tray to easily transport, insert, and receive a plurality of punches and dies into a die block and punch case while arranging them in the correct order. The present invention provides a seed exchange device.

Structure In order to achieve the above-mentioned object, the present invention provides a die block mounting unit having a die block fixing portion that allows the die block to be freely inserted and removed from above on the upper surface of the bed having a horizontal or nearly horizontal flat surface. a punch case mounting base that moves forward and backward relative to the base and is equipped with a punch case fixing portion on an opposing surface to which the punch case can be removably mounted; and a punch case mounting base that is located between the two mounting bases. A die forging tray is provided that is freely removably fitted on a positioning guide that defines the mounting position for the die, and a die and a punch are fitted on the upper surface of the die transfer tray so that the die and punch can be slid only in the axial direction. It is characterized by a configuration in which a mounting section is provided.

The gold 81!4 tray is provided with a hook for hanging from a crane or the like. The mold conveying tray is divided into a die fitting part and a punch fitting part, and the die fitting part and the punch fitting part are separated in the front and back, or are formed integrally.

Example 1 to 3 show an apparatus according to the invention.

In the figure, reference numeral 1 denotes a bed with a flat upper surface constituting the set-up jig body. On the upper surface of this bed 1, a die block mounting base 2 is mounted on one side, and a die block mounting base 2 is mounted on the other side opposite to this. A punch case mounting stand 3 is provided.

The die block mount 2 is fixed at a fixed position with respect to the bed 1, but the punch case mount 3 is movable longitudinally on the bed 1 along guide rails 4.

Il-/r-1+1h fat μm^1yu spear ＾蔚+r-1+
+ It is formed into a U-shape when viewed from the +-r plane, and the die block 5 can be freely inserted into and removed from above. This U-shaped portion serves as a die block fixing portion 6.

The punch case mounting base 3 has a punch case 7 on its opposite surface.
Punch case fixing unit 8 that can be attached to the punch case so that it can be pulled out upwards.
Equipped with This fixing part 8 is formed in the shape of a surface plate with a vertical surface 8a, a support body 8b is provided protruding from the lower part of the vertical surface, and a setting metal fitting 9 is provided at the upper end that can be unlatched and set freely. .

The mold carrier 10 fitted on the bed 1 between the two mounting stands 2.3 is placed so as to be fitted on two parallel guides 11, and when fitted in the fixed position. The position is set automatically for fishing. This gold m conveying tray 10 has a die 12 on its upper surface. Fitting portions 14 and 15 are provided in which the punch 13 is fitted so as to be slidable in the axial direction. Insertion part 14 with
, 15 are two parallel supporting fi members 14 a , 1
5 a and a die thereon. When the punch is placed, the outer circumferential surface of each cylinder is fitted between two points as shown in FIG. 5, and the supporting portions are in line contact, making it easy to slide in the axial direction.

This mold carrier wave 10 can be formed by separately forming the punch and die mounting parts 14 and 15 on one carrier wave 10, as shown in FIG. 1, or by forming the tray 10 itself as shown in FIG. It is also possible to divide it into two parts, front and rear, and use one of them 10 for the goo 12 and the other 10' for the punch 13.

This mold carrier 10 is equipped with a hanging hook 16 so that it can be suspended and moved by a crane.

The punch case mounting base 3 can be moved manually or by operating a handle, but this is difficult if the punch case is extremely large and heavy, so a power pushing device 17 is used.

This device 17 includes a hydraulic cylinder 17 as shown in FIG.
The punch case mounting base 3 is moved forward and backward relative to the die block mounting base 2 by extending and contracting the piston rod y17b using hydraulic pressure using the lever a.

action The mold replacement work is performed in the following steps.

First, the die block 5 is hung on the bed 1 of the set-up jig main body using a crane using a hook 20 provided at the upper part, and set on the die block mounting base 2.

After positioning, adjust the wedge-shaped adjustment body 19 by operating the adjustment handle 18.
Move it back and forth and fix it in a fixed position, making it immovable. Similarly, the punch case 7 is suspended by a crane using a hook 21 provided on the upper part thereof and set on the punch case mounting base 3. After fixed in position, it is locked with the set metal fittings 9. The set metal fittings 9 include a support rod 9b that is pivotably mounted around a pivot shaft 9a, and a fastening nut 9 that is screwed into the threaded portion of the support rod 9b.
c, and the hook is removably engaged with the base plate 7a of the punch case 7.

Next, a plurality of dies 12 and punches 13 are placed on the mold carrier 10.
Arrange and fit in the order of the process. This carrier wave 1o is first suspended empty by a crane using a hook 16, and then the carrier wave 1o is
Alternatively, the die and punch may be separately placed on the carrier wave 10 and lifted by a crane and brought onto the bed l.

Each insertion part 14, 15 of the carrier wave 1o on the bed 1
When the die 12 and punch 13 are fitted, the respective fitting holes 5a and 7 of the tip block 5 and punch case 7 are inserted.
Since the die 12 and the punch 13 are pushed toward the die block 5 side and the punch 13 is pushed toward the punch case 7 side, respectively, they will slide on the rail and be inserted into the insertion hole. be done. During this insertion, if the guide branch 22 protruding from the front end of the insertion hole guides the insertion, the insertion can be performed smoothly.

If it is necessary to align the dies and punches inserted in the die block 5 and punch case 7, the carrier wave 10 on the empty bed 1 is lifted up again by a crane and moved to another location, and then the punch case is attached. When the table 3 is moved forward, the mold hole 1 of the die 12 is opened as shown in FIG.
Since the tip 13& of the punch 13 fits into the inside 2a,
The centering adjustment of the die and punch can be checked by external setup. Since this sliding movement of the punch case mount is performed by the power pushing device 17, the same simulation as the actual heading in the hoe 7 can be seen.

The steps up to this point are completed by external setup while the hoe 7 is in operation, and the machine waits for the forging work to be completed.

When the forging work at Hope is completed, die block 5
' and punch case 7 are the inset parts of the main claim decree. 6
Then, it is lifted up by a crane or the like and taken out from the main body, and replaced with the die block 5 and punch case 7 that were previously on standby on the bed 1. As soon as the exchange is completed in this way, Hope resumes heading.

Effects of the Invention As described above, this invention provides mounting bases for the die block and punch case that are assembled into the hope on the bed of the setup jig body facing each other, and also provides a mold carrier wave between the two mounting bases. Place the die and punch on the top surface of the transfer tray on the positioning guide, and place the die so that it matches the die block and punch case fitting hole on each mounting base. Since the structure is such that the die and punch are slidably fitted, the die and punch replacement work can be done without having to worry about the die block or punch case, and centering can be easily and reliably performed by external setup as a simulation of the actual hope. Therefore, it is possible to perform mold exchanges in super-large hops highly efficiently with minimal time loss, and this series of mold exchange operations can be performed safely and smoothly by using mold carrier waves. It can be implemented reliably, has a simple configuration, is inexpensive, and has an effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the mold changing device, Fig. 2 is a plan view thereof, Fig. 3 is a front view as seen from the punch side, and Fig. 4 is a meeting point. FIG. 7 is a side view showing an embodiment of the present invention, and FIG. 7 is a plan view of the multi-stage hope. ]...Bed 2...Dive block mounting base 3...
Punch case mounting base 4...Guide rail 5...Die block 6...
Die block fixing section 7...Punch case 8...Punch case fixing section 1
0... Mold feeding tray 11... Positioning guide 12
...Die 13...Punch 14, 15...Insertion part 16...Hook 17...
・Power pushing device applicant: Sakamura Machinery Co., Ltd.

Claims (1)

[Scope of Claims] α) A die block mounting base having a die block fixing part that allows the die block to be freely inserted and removed from above on the upper surface of the bed having a horizontal or near-horizontally flat surface; a punch case mounting base that moves forward and backward relative to the mounting base and has a hanging punch case fixing portion mounted on an opposing surface so that the punch case can be pulled out upwardly; A mold carrier is provided which is detachably fitted onto a prescribed positioning guide, and a mold mounting portion is provided on the upper surface of the mold carrier to allow the die and punch to slide only in the axial direction. A mold changing device for multi-stage forming machines. The mold changing device for a multi-stage former according to claim 1, wherein the mold carrier wave is provided with a hook for hanging a crane or the like. (3) The mold changing device for a multi-stage former according to claim 1, wherein the mold carrier wave is divided into a die fitting portion and a punch fitting portion, which are separated in the front and back, or are formed integrally. 2. The mold replacement for a multi-stage former according to claim 1, wherein the mold fitting part is configured to fit the outer circumferential surface of the cylinder with two-point support using two parallel support members. Device. (5) The mold changing device for a multi-stage former according to claim 1, wherein the punch case mount is linked to a power pushing device.