JPS60118337A - Die adjusting device of press die - Google Patents

Abstract

PURPOSE:To simplify a structure, to obtain a titled device at a low cost, and also to execute quickly a lapping work of a lot of dies by constituting an adjusting device of a press die, of a base plate which can be suspended and moved, a joint guide pin projected from said plate, and a driving device for moving up and down an upper die base. CONSTITUTION:Various lower dies 32 are installed to a lower die base 31, and various upper dies 34 are installed to the lower face of an upper die base 33. Subsequently, with respect to a press die unit being in a state that a guide hole 36 in a guide sleeve 35 of the upper die base 33 is fitted to a guide pin 17 provided vertically on the lower die base 31, a press die adjusting device is made to descend by a crane, etc. from its upper part, and a joint guide pin 12 is inserted into the guide hole 36 from the upper part of the upper die base 33. Next, the joint guide pin 12 is rotated manually by loosening a nut 15, the guide pin 17 is screwed and connected each other, and simultaneously, a supporting plate 21 is made to descend and fixed to the upper die base 33. In this state, the upper die base 33 is moved upward along the joint guide pin 12 by a cylinder 19 fixed to a base plate 11, and the upper die and the lower die 32, 34 are lapped and adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mold adjustment device for a press mold for rubbing together upper and lower molds of a press.

(Prior Art) In general, press dies that perform plastic deformation or cutting and punching of metal between upper and lower dies require rubbing adjustment prior to use. For this reason, conventionally, a press machine that actually uses the press die or a platen 3 that can move up and down along a post 2 erected on a base l as shown in FIG. Using a mold adjustment goose potter that can be moved up and down with a power cylinder 5 provided on the crown 4 supported on the upper end of the 2,
Attach the upper mold a to the lower surface of the platen 3 and the lower mold a to the base 1, and press the platen 3 using the power cylinder 5.
The parts are being rubbed together by moving them up and down.

However, with this type of conventional adjustment, when using an actual press machine, the press mold must be transported to the location of the press machine, and a changeover device is used to move multiple molds from one press to another. For example, in the case of a so-called hemming line that is used interchangeably on a machine, when rubbing together on this line, each mold must be done in turn with a press machine, which requires a long period of time to adjust the molds. However, in order to rub each mold at the same time, it had to be removed from the line and transported to a press factory that had presses for the number of molds.

In addition, even when using a mold adjustment tool potter, this device itself is large-scale, and it is economically difficult to maintain a large number of them.Moreover, attaching and removing the mold to and from this device is the same as attaching and detaching the mold to and from the press machine. Similarly, it requires a lot of work, is not efficient, and has the same drawbacks as using a press.

(Objective of the Invention) In view of the above-mentioned drawbacks of the conventional technology, the present invention has a simple structure, is economically easy to hold in large numbers, and is easy to set without requiring the movement of upper and lower press molds. The object of the present invention is to provide a press mold adjustment device that can quickly and simultaneously perform a large number of rubbing mold adjustments.

(Structure of the Invention) The gist of the present invention for achieving the above object includes a base plate that can be freely suspended and moved by a lifting means such as a crane, and a press mold that is protruded from the lower surface of the base plate. A connecting guide bin is provided to protrude from the lower surface of the base plate and communicates with the upper end of the guide pin of the lower mold base inserted into the guide hole of the upper mold base from above the upper mold base, and the upper mold is moved up and down. The base plate is equipped with a vertical drive means, and the base plate is moved onto the press die using a crane or other means of suspension, lowered from above, and the connecting guide pin is inserted from the upper end of the guide hole of the upper die base to remove the guide pin inside the press die. The above objective was achieved by connecting the upper die base to the upper end and moving the upper die base up and down using a vertical drive means to perform the rubbing operation of the press die.

The vertical driving means may be fixed to the base plate and lift the upper die base, or may be interposed between the lower die base and the upper die base and push up the upper die base.

Moreover, the connection between the joint guide pin and the guide pin is preferably such that a screw hole and a male screw threaded into the joint are provided in the joint portion of the two, and the joint guide pin is rotated and screwed together.

(Effects of the Invention) The present invention is configured as described above, and only requires a base plate to be suspended and moved, a joint guide pin protruding from the base plate, and a vertical drive means sufficient to vertically move the upper mold base. Because the structure is significantly simpler than that of the mold adjustment screw potter or press machine, it can be obtained at a low price, and it is economically possible to have a large number of them.
Therefore, it has become possible to adjust many press dies at the same time, and since the work is carried out by moving a device that is lighter than the press dies to the position of the dies, Mounting the device is much easier than mounting the press mold on a conventional press machine or a mold adjustment screw spotter, and it is also highly safe and allows quick mold adjustment work to be performed safely and with less effort.

(Example) Next, an example of implementing the present invention will be described with reference to the drawings from FIG. 2 onwards. In FIGS. 2 to 4, 11 is a base plate. This base plate 11 is formed by assembling shaped steel materials into a frame shape, and has joint guide bins 12 at its four corners.
is protruding downward. As shown in FIG. 3, this joint guide pin 12 has an integral flange 13, and is fixed to the base plate 11 by inserting the upper side of this flange 13 into the mounting hole 14 of the base plate 11 and screwing a nut 15 into the upper end. are doing. A female thread 16 is formed at the lower end of this coupling guide pin 12, and a male thread 18 at the tip of a guide pin 17, which will be described later, can be screwed into this female thread 16. The diameter of the joint guide pin 12 is preferably equal to the diameter of the guide pin 17, but it may be smaller in diameter than the guide pin 17 if it is made stepless by providing a tapered portion 17a as shown in FIG. It is something. A hydraulic cylinder 19 as a vertical drive means is provided in the center of the base plate 11, and its in/out rod 20 projects below the base plate 11, and an upper mold base support plate 21 is fixed to its lower end. There is.

A fall prevention mechanism is provided between the old base support plate 21 and the base plate 11. This mechanism is a support play) 21 has a hook hook attached to the bin 22 and a base play)
11, a hook 24. is swingably provided around a shaft 23. The hook 24 is attached to the bin 22 by a spring 25 that biases the hook 24 in the direction, and an operating cylinder 26 that releases the hook 24 in the direction. When the support plate 21 is raised, the hook 24 is automatically attached to the bin 22. By engaging and moving the rod 27 of the operation cylinder 26 in the projecting direction, the hook 24 is moved in the releasing direction.

In the figure, reference numeral 28 denotes a hanging ring, to which a wire rope is hung so that it can be suspended using a hanging means (not shown) such as a crane.

When using the press mold adjustment device configured as described above, as shown in FIG. The main press die is attached to the press die unit in which the guide hole 36 in the guide sleeve 35 of the upper die base 33 is fitted into the guide bin 17 set upright on the lower die base 32 from above. Lower the adjustment device, insert the joint guide pin 12 into the guide hole 36 from above the upper die base 33, loosen the nut 15, and manually rotate the joint guide pin 12 to tighten the female thread 18 at the lower end.
The male screw 18 at the tip of the guide bin 17 is screwed into the pins 12 and 17 to connect them to each other, and at the same time, the support plate 21 is lowered and fixed to the upper surface of the upper die base 33.

In this state, when the upper mold base 33 is pulled up by the hydraulic cylinder 19, the upper mold base 33 is moved upward along the joint guide pin 12.

In the above embodiment, the hydraulic cylinder 19 is fixed to the base plate 11 as the vertical drive means, but in addition, as shown in FIG.
A plurality of jacks 29 may be interposed between them as vertical drive means.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional mold adjustment guide pin, Fig. 2 is a side view showing an implementation of the present invention, Fig. 3 is a longitudinal cross-sectional view of the joint guide pin portion, and Fig. 4 is a side view in use. Figure, 5th
The figure is a partial side view showing a part of another embodiment, and FIG. 6 is a partial side view of another joined state of the guide bin and joint guide pin. ll...Base plate, 12...Joint guide pin,
16...Male thread, 19...Hydraulic cylinder, 21
...Upper die base mounting plate, 31...Lower die base, 32...Lower die, 33...Upper die base, 34...Upper die, 36...Guide hole. Figure 1 et al. Figure 5 Figure 6 193-

Claims (1)

[Scope of Claims] l) A base plate that can be suspended and moved by a crane or other lifting means is provided, and a guide pin of a lower mold base that is inserted into a guide hole of an upper mold base of a press mold is protruded from the lower surface of the base plate. A mold adjusting device for a press mold, comprising: a joint guide pin projecting from the lower surface of the base plate at the upper end and communicating from above the upper mold base; and a vertical drive means for moving the upper mold up and down. 2) The press according to claim 1, wherein the vertical drive means comprises a power cylinder fixed to a base plate and an upper mold base connecting plate fixed to the lower end of the inlet/output rod of the power cylinder and fixed to the upper mold base of the press mold. Mold adjustment device.