JPS58128227A - Flange press die - Google Patents

Abstract

PURPOSE:To reduce the number of man-hours for manufacturing a die and preparation stages by mounting the insert dies that perform flange down work and cam flange work to a slide cam. CONSTITUTION:A flat platelike panel W1 is placed on a punch 23 and an upper holder 25 is lowered. A collapse die 22 is moved by a slide cam 28 and brought into contact with a stopper 21. Then, a pad 26 presses the panel W1, and the insert die 31 of a slide cam 30 comes into contact with the W1. The edge part is bent downward at nearly right angles in angle-shape, and flange-down work is performed. When the upper holder 25 is further lowered, the lower face of the slide cam 30 comes into contact with a wear plate 35 of slanted cam face of the collapse die 22. The slide cam 30 slides on the wear plate 35, and flange-down worked position is further bent inward in a channel shape by cooperation of the insert die and punch 23, and cam flange work is carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a flange press die for performing seven-lunge bending on panel parts.

Conventionally, when forming a channel-shaped panel molded product w2 as a workpiece, for example as shown in FIG. 1, the following method has generally been adopted. Specifically, first, a flat panel Wlk is placed on the punch 1 of the first press machine Ml shown in FIG. 2, and as the upper holder 2 descends, the panel Wi is first pressed with the pad 3. Next, the sectional die 4 is used to bend the entire lower edge of the shibaneru Wl into an angular shape at a substantially right angle to perform flange down processing.

Next, the second press machine M shown in FIG. 3 is used for another panel Wlk which has been subjected to the flange down process as described above!
Transfer to punch 1 of collapse die 5. At this time,
Since the collapse die 5 is at the most retracted position towards the right in the figure,
When the upper holder 2 is lowered from this state, the drive cam 6 integrated with the upper holder 2 moves onto the cam surface of the collapse die 5.
This causes the collapse die 5 to slide on the knife holder 7 until it comes into contact with the stopper 8. Then, pad 3 becomes panel W for the first time.

Since the drive cam 6 contacts the slide cam 9 mounted on the collapse die 5, the ride cam 9
slides, and the part that was previously flange down is further bent inward into a channel shape diagonally 9 to perform cam flange processing. As a result, a panel component W having a flange portion Ffi as shown in FIG. 1 is obtained. 3, reference numeral 10 is a cylinder for urging the collapse die 5 in the inward direction, and reference numerals 11, 12, and 13 are wear plates interposed at the sliding contact portions of the respective members.

However, in the conventional method for forming panel molded products, the flange down processing and the 7-lung processing must be performed in two separate steps, as described above, and a separate first press mold is used. This requires a second press mold, which increases the number of man-hours for manufacturing the press mold and the number of setups during production, and increases equipment costs.Also, it is necessary to secure a considerable amount of space when storing the molds. There are other problems.

In view of the above points, this invention was made with the aim of shortening the process of flange processing of panel parts, and for this purpose, in particular, in the present invention, the functions of the previous two types were combined. These are combined into one mold so that the aforementioned 7-lunge process can be performed with only one press mold.

-Next, one embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 4, KA is a lower holder as a stopper 21 't knee-sleeve die, n is a collapse die integrated with a punching device, and AE is connected to collapse die 4, and the collapse die 22 is attached in the direction of arrow A. It is a cylinder for force.

On the other hand, 5 is an upper holder as an upper mold, 26 is a pad supported by the upper holder 5 with a pad retainer 27 for vertical movement EJ function, and 3 is a collapse drive cam attached to the lower surface of a part of the upper holder. .

Further, 29 is a cam casing attached to the lower surface of the upper holder δ so as to be in instant contact with the drive cam, and a slide cam I is supported on this cam casing 4 so as to be slidable in an oblique direction via a keeper plate 29a. ing.

Therefore, the cam 7 flange processing of the channel-shaped panel Wl can be carried out smoothly. The slide cam (9) is integrally attached with the aforementioned flange down processing, cam 7 lunging processing, and fully rotating insert die 31, and the flange down processing surface 31a and cam 7 lunging processing g
31b.

In addition, 32 is a coil spring, 33 is a slide cam and V! An elastic body such as urethane provides a return force, and a stopper determines the return limit of the slide cam.

Here, the operation of the press mold configured as above will be explained.

First, as shown in FIG. 4, when the upper holder 25 is lowered by placing it on the flat panel Wtlc punch, the collapse drive cam path is connected to the cam portion 22a of the collapse die 4.
As a result, the entire collapse die η slides on the lower holder 9 with a groove in contact with the stopper 21.

Next, when the upper holder 5 further descends, the coil spring 32 is bent and the pad presses the panel Wlk as shown in FIG. The edge s is bent downward at a right angle by about t1 and subjected to a 7-lung down process.

Then, when the upper holder 5 is lowered one step, the lower surface of the slide cam comes into contact with the inclined cam surface on the collapse die n, that is, the wear plate 35 which is the drive cam, and the cam casing 29 and the slide cam are brought into contact with each other. While the elastic body 33 is bent and moved relative to each other, the slide cam I
slides on the wear plate 35, and at the request of the insert die 31 and the punch, the part that has been previously subjected to flange down processing is further folded inward into a channel shape to perform cam flange processing. As a result, a panel molded product W shown in FIG. 1 is molded.

When the upper holder 6 passes the bottom dead center and begins to rise, the slide cam pressure returns to its original state and the pad part separates from the panel Wl. When the upper holder 5 reaches the top dead center, the cylinder The entire rainbow collapse die n is pulled in the direction of the arrow A by the operation, and then the panel molded product W is taken out by the operation of the lid (not shown), and the above-mentioned operations are repeated thereafter.

As described above, according to the flange press mold of the present invention, channel processing can be performed in one step, whereas conventional flange down processing and 7-lung processing were performed in separate processes. In addition to being able to reduce the number of man-hours, it also has the effect of reducing equipment costs and mold storage space.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an example of a channel-shaped panel castle-shaped product, Fig. 2 is a cross-sectional explanatory diagram showing the configuration of the main part of a press mold for conventional flange down processing, and Fig. 3 is the same (conventional FIG. 4 is a cross-sectional explanatory diagram showing the structure of the main parts of a press mold for cam flange processing, FIG. 4 is a cross-sectional explanatory diagram showing one embodiment of the flange press mold of the present invention, and FIG. 5 is a cross-sectional diagram showing the operating state It is an explanatory diagram. K...Lower holder C lower mold), n...Collapse die,
Ru...Punch, δ...Upper holder (upper mold), Ka...
・Pad, ah... collapse drive cam, addition... slide cam, ah... wear plate as drive cam, 31 &... flange down machined surface.

Claims (1)

[Claims] A slide cam that is tilted and slidably provided on the upper mold of the molds that are spaced apart from each other, and in which the anti-nucleation workpiece is biased;
A collapse drive cam is provided adjacent to the slide cam, and a collapse drive cam is provided on the lower mold so as to be able to slide in substantially the same direction as the slide cam, and is driven by the collapse drive cam and when the upper mold approaches the It has a drive cam that drives the slide cam along the workpiece, and also works together with the slide cam to work with the workpiece. 7 lunge breath type equipped with a collapse die and a punch for machining l.