JP3162754B2 - Press-type positioning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple positioning device for repairing a die of a hemming press and for surely returning a lower die after initial adjustment to an original position.

[0002]

2. Description of the Related Art Conventionally, for example, in repair work of a mold of a hemming mold press and initial adjustment work of a mold, an operator sometimes enters the mold with the upper mold and the lower mold separated from each other to perform the work. However, such work has the disadvantage that the working posture is poor due to the limited working space and requires a long working time, and because there is a safety problem, only the lower mold is carried out of the press device to the outside. An apparatus is known in which an upper mold and a lower mold are repaired or an initial adjustment is performed, and then the lower mold is carried into the apparatus again. For example, 61-1
Devices such as No. 33228 and No. 2-65426 are known as devices for improving such workability. In the former case, a T-shaped block having a shaft portion in a parallel bolster having a T-shaped cross section is used. And the slit of the mold is engaged with the shaft of the T-shaped block to position the mold. In the latter case, a gripping device is provided in the molding machine, and the gripping device attempts to grip and position the mold from all sides.

[0003]

However, in the conventional case,
There is a problem that when the carried out lower mold is carried into the apparatus again, the positions of the upper mold and the lower mold do not exactly match. In other words, in the above case, if the former is used, it is difficult to accurately position the lower mold even when trying to position and carry it in, and it is necessary to carry out after matching the lower mold and the upper mold, and in the latter case. When the mold is carried into the molding machine with the mold shifted,
There was a problem in that even if an attempt was made to grasp the mold as it was, it could not be grasped accurately, and it was necessary to correct the mold to a normal posture or the like and then grasp it again.

[0004]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention relates to a press-type positioning device in which a common plate holding a lower die is positioned and fixed on the lower die base. A pair of positioning devices for positioning the central portions of both sides of the common plate, a pair of clamping devices positioned on both sides of each positioning device, a pair of guide plates for guiding both sides of the common plate, and a common plate. A pressing device that presses one side and presses it toward the opposing guide plate is provided,
On the other hand, the common plate was provided with each engaging portion that engages with the positioning device and the clamp device. Then, after the positioning device and the clamp device are engaged with each engaging portion of the common plate carried into the lower mold base to perform the first positioning, the common plate is pressed by the pressing device toward the opposing guide plate. , The second positioning is performed.

[0005]

The position of the common plate at the fixed position of the lower mold base is carried in and carried out, so that no positional displacement occurs with the upper mold. In other words, at the time of loading and unloading of the common plate holding the lower mold, the attitude of the common plate (lower mold) is regulated to be constant by the first positioning by the positioning device and the clamp device, and thereafter, by the second positioning by the pressing device, Set the common plate (lower mold) at a fixed position with respect to the lower mold base. After the positioning, the opened upper die is held above, and is carried out and carried in, so that no positional displacement occurs with the upper die.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the positioning device of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view showing an outline of the entire hemming press device, FIG. 2 is a plan view of the same, FIG. 3 is a front view showing a state where a lower die is carried into the press device, and FIG. 4 is a plan view of the same.

An embodiment of the present invention is a hemming press device, and this hemming press device is, as shown in FIG. 1 and FIG. The rack device arranged symmetrically is omitted, and the rack device 2 shown in FIG.

The rack device 2 includes a column 3 erected at four corners, an elevating member 5 that moves up and down by engaging with a vertical guide rail 4 of the column 3, and an elevating driving force applied to the elevating member 5. The lifting and lowering body 5 is provided with a rod 6 for transmitting.
A step mold storage is provided.

That is, the elevating body 5 has a three-stage elevating base 7
Is provided and connected to the rod 6, and a roller 8 provided on each elevating base 7 is engaged with the vertical guide rail 4 of the column 3.

A transport rail 9 is provided on each lifting base 7 so as to communicate with a transport rail 22 of the press device 1 described later. A plurality of rolling rollers 11 and a driven gear 12 are coaxially disposed on the transport rail 9, and the die W carried out from the press device 1 via the transport rails 22 and 9 is connected to the rolling rollers 11. It will be placed and stored on top.

On the other hand, the press device 1 includes a support column 13 erected at four corners, a support plate 14 mounted on the upper portion of the support column 13, and a lifting cylinder unit 15 mounted on the support plate 14. An upper base 16 is connected to the lower end of the rod 15a of the lifting cylinder unit 15. The upper die Wu is clamped by a plurality of connecting members 17 provided on the upper die base 16. Further, a guide rod 18 for guiding the vertical movement of the upper die base 16 is provided.

The lower base 2 is provided below the support column 13.
1 is attached. The lower mold base 21 is configured so that the lower mold Wl can be fixed at a fixed position, and details of the configuration are as described below in detail. The configuration of Wl and the common plate C will be described with reference to FIGS. still,
FIG. 5 is a plan view of the lower mold Wl, and FIG. 6 is a front view of the same.

The lower mold Wl is placed on the common plate C and is held in position. That is, a plurality of pins P, P,... Are erected on the upper surface of the common plate C, and the pins P engage with recesses formed in the peripheral portion of the lower die Wl to securely hold the lower die Wl. At the same time, when the lower mold Wl is carried out or carried in from the press device 1, both are performed integrally.

As shown in FIG. 2, the lower die base 21 includes a transfer rail 22 for loading and unloading the above-mentioned integrated common plate C. The transfer rail 22 is connected to the rack device as described above. It communicates with the transport rail 9 on the second side and has a rolling roller 23 and a driven gear 24 coaxially.

In the middle part of the conveying rail 22 in the width direction,
When the lower die Wl is loaded from the rack device 2 into the press device 1, a positioning stopper 25 is provided which engages with the front surface of the common plate C and regulates the loading position. A pair is provided on the left and right corresponding to the carry-in from the outside, and is configured so as to be able to protrude and retract from a notch 26 provided on the edge of the lower mold base 21.

Incidentally, the lower mold base 21 is provided with a pair of positioning devices 27, 27 at the center of both opposing sides parallel to the transport rail 22. This positioning device 27
As shown in FIG. 4, there is provided a positioning member 27a which can be moved forward and backward by a rear cylinder unit 27b, and the tip of the positioning member 27a has a trapezoidal shape tapered at the center in plan view.

A pair of clamping devices 28, 28,... Are provided on both sides of each of the positioning devices 27, 27. This clamping device 28 is also a clamp member 2 which can move forward and backward by a rear cylinder unit 28b.
8a, and are disposed symmetrically with respect to the transport rail 22.

In correspondence with the positioning device 27 and the clamping device 28 described above, the common plate C is provided with engaging portions C1 and C2 as shown in FIG. That is, the center positioning engagement portions C1, C1 are for engaging the advancing positioning member 27a, and the clamp engagement portions C2, C2,... On both sides thereof are for engaging the advancing clamp member 28a. And notches corresponding to the respective positions.

For this reason, the common plate C is connected to the lower base 2
1, each positioning device 27, clamping device 2
8, the positioning members 27a and the clamp members 28a correspond to the common members as shown in FIG. 7 which is a cross-sectional view taken along the line AA of FIG. 2 and FIG. 8 which is a cross-sectional view taken along the line BB of FIG. By engaging with the engaging portions C1 and C2 of the plate C, the common plate C is sandwiched from both sides for positioning. In FIG. 8, reference numeral 33 denotes a pressing device described later.

The lower die base 21 is provided with a positioning device 2.
7. Guide plates 30 to 32 are provided on each side where the clamp device 28 is provided. That is, one side of the guide plate 30 and the other side of the guide plate 31
Are provided at substantially symmetrical positions, and the other guide plates 32 are provided at four corners so as to guide the side ends when the common plate C is carried in and out.

Further, on one side of the lower mold base 21, a pressing device 33 capable of pressing the side end of the common plate C is provided. The pressing device 33 includes a pressing block 33a that can move forward and backward by a rear pressing cylinder unit 33b, and is provided in a pair with the center positioning device 27 interposed therebetween.

The pressing device 33 is provided with the C--C of FIG.
As shown in FIG. 9 which is a line sectional view, the side end of the common plate C can be pressed and pressed against the opposing guide plate 31, and the second positioning is performed by this pressing. You can do it.

In the above-mentioned hemming press device, when performing repairs or the like, as shown in FIG. 4, first, the positioning device 27 and the clamping device 28 of the lower mold base 21 are operated, and each positioning member 27a, The first positioning is performed by engaging the engaging portions 28a with the engaging portions C1 and C2.

At this time, the positional deviation of the common plate C in the left-right direction (the direction in which the transport rail 22 extends) is corrected by the tip trapezoidal shape of the positioning member 27a, and the transport rail is engaged by the engagement of the clamp members 28a on both sides. The inclination with respect to the 22 directions is corrected.

Next, when the common plate C is pressed against the opposing guide plate 31 by the pressing device 33 of the lower mold base 21 to perform the second positioning, the common plate C is always positioned at a fixed position with respect to the lower mold base 21. Is done. That is, the lower mold Wl held on the common plate C is always set at a fixed position and a fixed posture. In this state, as shown in FIG. 3, the upper mold Wu is opened, the lower mold Wl is carried out, repair work of both molds Wu, Wl is performed, and then the lower mold Wl is carried in and the same procedure is carried out. , No displacement occurs between the upper die Wu and the lower die Wl.

[0026]

As described above, the positioning device of the present invention
The lower position of the lower die is regulated by the first positioning, and the lower die is kept at a constant position by the second positioning before loading and unloading. Therefore, the upper die is used during repair work or initial adjustment work. And no displacement occurs between them.
Further, the position is simple and the position can be easily adjusted.

[Brief description of the drawings]

FIG. 1 is a front view showing an outline of an entire hemming press device.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view showing a state where the lower mold is carried into the press device.

FIG. 4 is a plan view of the same.

FIG. 5 is a plan view of a lower mold.

FIG. 6 is a front view of the same.

FIG. 7 is a sectional view taken along line AA of FIG. 2;

FIG. 8 is a sectional view taken along line BB of FIG. 2;

FIG. 9 is a sectional view taken along line CC of FIG. 2;

[Description of Signs] 1 Pressing device 21 Lower die base 27 Positioning device 28 Clamping device 30, 31, 32 Guide plate 33 Pressing device C Common plate C1, C2 Engaging part Wl Lower die

Claims (1)

(57) [Claims] 1. A press-type positioning device in which a common plate for holding a lower die is positioned and fixed on a lower die base, wherein the lower die base comprises a pair of positioning members for positioning central portions of opposite sides of the common plate. A positioning device, a pair of clamping devices provided on both sides of each positioning device, a pair of guide plates for guiding both sides of the common plate, and pressing one side of the common plate toward the opposing guide plate. In addition to a pressing device, the common plate is provided with respective engaging portions for engaging with the positioning device and the clamp device, and each of the engaging portions of the common plate carried on the lower mold base is provided with the positioning device and the clamping device. Are engaged and the first positioning is performed, and then the guide plate opposes the common plate by the pressing device. A press-type positioning device, wherein the second positioning is performed by pressing the pressing device toward the second position.