JPS58141894A - Press - Google Patents

Abstract

PURPOSE:To enable pressing for two units with one unit of a press by providing die mounting parts in two upper and lower positions and mounting a pair of upper and lower dies thereto. CONSTITUTION:A middle bed 4 is provided between a crown 1 and a bed 2, and an upper die mounting part A and a lower die mounting part B are provided among the bed 4, the crown 1 and the bed 2. A slide 5 and a slide 6 are moved back and forth, and the work is pressed with the dies 9a, 10a mounted in the parts A, B. Pressing work for two units is accomplished with one unit of such press.

Description

[Detailed description of the invention] The present invention relates to the structure of a press.

Of course, there are many types of presses, but recently the uses of presses have expanded, and the number of types has increased to match the processing characteristics. Coupled with this increase in types, there is a shift to a high-mix, low-volume production system, and it is becoming increasingly necessary to install a large number of presses to accommodate this. However, it may be difficult to secure space within the factory where this is installed.

In view of the above circumstances, an object of the present invention is to provide a press that has a high press capacity and can effectively utilize the aim of a production factory.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a first embodiment of the invention.

In this embodiment, between the crown (1) and the bed (2), parallel to these and both ends are left and right applied (3)
) is provided, and upper and lower slides +51 and +61 are provided between the middle bed (4), the crown (1) and the bed +21, respectively. Inside the crown (1) is a crank mechanism (7) as a drive unit.
is provided. This classif mechanism (7) is connected to the upper slide (5) by a connecting rod (7a). Upper slide (5) and lower slide (6)
and are interconnected by a vertical sliding connecting rod (8). Therefore, when the upper slide (5) is reciprocated by the ramp mechanism (7), the lower slide (6) reciprocates accordingly. Upper and lower bolsters (91) are installed on the middle bed (4) and the bed (2), respectively.

Also, the bottom surface of the upper and lower slides +51 +63 (
5m) (6m) are provided with grooves or holes (both shown as paths shown) for backing the upper die. In addition, Port x Ta f91
Ql f) Upper 1 (9&) (10m) Of course, the two molds are designed to be able to be installed. Therefore, during processing, the upper mold is attached so that a pair of upper and lower molds (path shown in the figure) consisting of an upper mold and a lower mold can be installed by the lower surface of the upper slide (5a) and the upper surface of the upper bolster (9a). The lower slide lower surface (6a) and the lower bolster upper surface CIO&) each constitute a lower mold mounting portion (B) in which the portion (A) is configured so that another pair of molds can be mounted thereto. . In this way, the upper and lower mold mounting parts (A) and (B) are provided at two locations, the upper and lower, and this press has a machining area equivalent to that of two machines for the predetermined installation area. ing. Additionally, this press can be manufactured at a much lower cost than manufacturing two presses.

FIG. 2 shows a modification of the first embodiment. In this modification, a crasif mechanism αη, which is a drive unit, is provided in the middle bed (4).

This classif mechanism αη has a connecting rod (1
7&) connects the lower slide (6). The upper slide (5) and lower slide (6) have tension bars OQ installed on both sides to connect the upper and lower slides.
The two shoulders are connected to each other by connecting them to each other. Therefore, when the lower slide (6) is driven by the Krasif mechanism 0η, the upper slide (5) reciprocates accordingly.

FIG. 3 shows another modification of the first embodiment. In this modification, a classif mechanism (5) is provided as a drive unit for the upper slide in the crown (1), and a bed (2) is provided in the crown (1).
) is provided in each case with a further crown mechanism as a drive for the lower slide. The upper slide crown mechanism 7' is the same as the crown mechanism (7) described above. The upper slide (5) is driven by this Classif' mechanism (2). The lower slide raster 2' mechanism (■) is of a well-known lower drive type and is equipped with a transmission link (371, etc.) for transmitting its motion to the lower slide (6). The lower slide (6) is caused to reciprocate.As the upper and lower slides +51 to +61 are each provided with a separate drive, in this modified press, the upper and lower slides [51+61] , can be processed simultaneously or individually, and therefore the above-mentioned processing area can be increased, and the press processing ability is improved.

FIG. 4 is a front view showing a second embodiment of the invention.

In this example, one slide date is provided.

As a driving part, an eccentric gear mechanism is provided in the pronation of the crown. Eccentric shafts (476) are located inside the gears (47b) provided at both ends of the main shaft (4711) of this gear mechanism. The eccentric shafts (471) are each connected to the slide a9 via a connecting rod (47d). therefore.

By driving the gear (47b), slide O5
performs a reciprocating motion. The lower surface of the crown αD and the upper surface of the bed α2 are provided with upper and lower bolsters αl■.
are installed respectively.

Also, both upper and lower sides of slide Q9 (15M) (15b
) is provided with a mold mounting groove or hole (both not shown). Therefore, as described above, the upper mold attachment part (A) is connected to the lower surface of the upper bolster (19m) and the upper surface of the slide (15&), and the lower mold attachment part CB) is connected to the lower surface of the slide (15b) and the upper surface of the lower bolster (20&). ), respectively. In this embodiment, while the slide (15) performs one cycle of reciprocating motion by the eccentric gear mechanism 1η, it is possible to perform press working in each of the descending and ascending strokes.

FIG. 5 shows a modification of the drive section of the second embodiment. In this modification, a hydraulic cylinder is provided within the crown αD and the bed aa as a drive unit. These hydraulic cylinders are arranged in pairs at both ends of the crown αυ and the bed α2, facing upwardly and downwardly. The slide (16+) is supported from above and below by a piston rod (571L) of a hydraulic cylinder, and moves up and down by protruding and retracting this rod (57&) to perform reciprocating motion.

Note that the clap mechanism (7) αη@ (support), eccentric gear mechanism, hydraulic cylinder, etc. shown as the drive unit in the above embodiments can be changed as appropriate. It is also possible to use other drive mechanisms as the drive section.

In the first embodiment, in addition to the mold attachment parts (A) and CB) shown in the second embodiment, the upper and lower surfaces of the upper and lower slides 151 + 61, the crown (1) and the middle bed (4) If you install a bolster on the bottom of each and attach the mold to the bolster, -
The increased construction area can be increased. Furthermore, by making the press line three-dimensional, including other auxiliary equipment for the press, the factory area can be used more effectively.

As explained above, in this invention, the mold mounting portions are provided at two locations, the upper and lower, so that a pair of upper and lower molds can be mounted. The two pairs of molds can be used to perform processing. Therefore, the press processing area can be increased with respect to a predetermined press installation area, and the area of the production factory can be used effectively.

[Brief explanation of the drawing]

1, 2 and 3 show a first embodiment of the invention, FIG. 1 being a front view of a press according to the invention, and FIGS. 2 and 3 showing the first embodiment of the invention. It is a front view showing a modification. 4 and 5 show a second embodiment of the invention, FIG. 4 is a front view of a press according to the invention, and FIG. 5 is a front view of a modification of the second embodiment. . (A) (B)... Upper and lower mold attachment parts. Patent applicants: 4 people other than Fukui Kikai Co., Ltd. 5th cause

Claims (1)

[Claims] A press with mold mounting parts (A) and CB), which are designed to attach a pair of upper and lower molds, at two locations, upper and lower.