JPS62259699A - Press device - Google Patents

Abstract

PURPOSE:To reduce the stiffness of a frame body and miniaturize the whole press body by performing the ascent and descent of a sliding bar and ascending and descending body via a linking mechanism with the movement of a driving rod, and arranging the main part of the driving mechanism at the lower part of a base stand. CONSTITUTION:The mounting of the lower die 5 and upper die 6 is performed by sliding a bolster 4, pulling it out to the outside of a press, performing the adjustment and fixing it by positioning on the bolster 4. A driving rod 15 is then subjected to a round trip in the longitudinal direction by a driving source 17 and a linking mechanism 16 is actuated. The ascending and descending body 7, namely the upper die 6 works with its ascent and descent via a sliding bar 14 accordingly and the pressing of a thin steel plate l is performed. The lower die 5 is fixed via the bolster 4 to the base stand 3 and the main part of the driving mechanism driving the ascending and descending body 7 is ranged at the lower part of the base stand 3. In this way the large-sized frame body in the past having a big stiffness becomes disused and the whole press body can be miniaturized.

Description

Detailed Description of the Invention A1 Objective of the Invention txt Industrial Field of Application The present invention is directed to an upper mold in which a lower mold is fixed to a fixed base via a bolster, and which is used for press working in cooperation with the lower mold. The mold relates to a press device that is interlocked and connected to an elevating body that can be raised and lowered.

(2) Conventional technology Conventionally, such a press apparatus has a gate-shaped frame that straddles the upper part of the elevating body, and a drive source and a drive mechanism for driving the elevating body up and down between the frame and the elevating body. It is common to install

(3) Problems to be Solved by the Invention However, in the above-mentioned conventional technology, there is a problem in that the frame body is required to have high rigidity, and the entire press apparatus becomes large accordingly.

The present invention was made to solve these conventional problems, and provides a press in which the main part of the drive mechanism for driving the elevating body up and down is placed below the base, thereby reducing the overall size of the press. The purpose is to provide equipment.

B1 Configuration of the Invention +11 Means for Solving Problems According to the present invention, an elevating body is fixed to the upper end of a plurality of slide rods that are vertically movable and pass through a base, and A horizontally arranged slide bar that can be raised and lowered is fixed to the lower end of the slide rod, and a drive rod that is horizontally arranged and capable of reciprocating in the longitudinal direction below the base; and the slide bar are connected to each other via a link mechanism to convert longitudinal movement of the drive rod into vertical movement of the slide bar, and a drive source for reciprocating the drive loft is provided at the bottom of the base.

(2) Effect When the drive loft is moved in the longitudinal direction by the drive source,
The slide bar moves up and down via the link mechanism, and the elevating body moves up and down via the slide rod accordingly. Therefore, the elevating body is supported at the bottom of the base via the slide rod, slide bar, and link mechanism.
Since the drive source and the drive rod are also located below the base, the conventionally required frame becomes unnecessary.

(3) Example Hereinafter, an example of the present invention will be explained with reference to the drawings. In Figures 1 and 2, a press is used to punch out a steel plate of a constant shape made of thin steel plate 1 that is continuously supplied. The device 2 includes a lower mold 5 fixed on a fixed base 3 via a bolster 4, and an upper mold 6 that can be raised and lowered above the lower mold 5, and the upper mold 6 is interlocked with an elevating body 7. , are concatenated.

A pit 9 is provided on the floor surface 8, and the base 3 is accommodated and fixed in the pit 9 with its upper surface flush with the floor surface 8.

A bolster 4 is fixed on the base 3, but the bolster 4 can slide on the base 3 when released from the fixed state with the base 3.

A cylindrical guide tube 10 extending vertically is fixedly installed at four corners of the base 3 with its upper portion protruding upward from the base 3 and passing through the base 3. Further, an abbreviated support portion 11 extending downward from a portion corresponding to each guide cylinder 10 is integrally provided at the lower part of the base 3. Each guide tube 10 has
The slide rod 12 is slidably movable up and down,
A common elevating body 7 is fixed to the upper end of the slide loft 12 protruding from the guide tube 10. Further, a cylindrical guide part 13 coaxial with the guide tube 10 is provided at the lower end of the support part 11, and a guide part 13 is provided at the lower end of the slide loft 12.
It is rubbed together.

Below the base 3, both ends of a horizontal slide par 14 are fixed to the lower part of the pair of slide lofts 12, with both ends slidingly in contact with the support part 11, so that each slide loft 12 and the elevating body 7 moves up and down in accordance with the up and down movement of the slide par 14.

A horizontal drive rod 15 extending in a direction perpendicular to the longitudinal direction of the slide pars 14 is disposed below the base 3 and above each slide par 14 so as to be able to reciprocate in the longitudinal direction. Both ends of the rod 15 are connected to the base 3 and each slider 14 via a link mechanism 16.

Further, the longitudinal center portion of the drive rod 15 is connected to a drive source 17 fixed and supported on the lower surface of the base 3.

The drive source 17 consists of a pair of hydraulic cylinders 18 and 19 facing each other with axes parallel to the longitudinal direction of the drive rod 15, and these hydraulic cylinders 18 and 19 are fixed to the lower surface of the base 3. Moreover, the piston rods 18a and 19a of each hydraulic cylinder 18, 19 are coaxially connected, and the longitudinal center portion of the drive rod 15 is connected to the connection portion with some vertical movement allowed. Therefore, one hydraulic cylinder 18 is contracted and the other hydraulic cylinder 1
9 is extended, the drive rod 15 moves to one side in its longitudinal direction, and by contracting the other hydraulic cylinder 19 and extending one hydraulic cylinder 18, the drive rod 15 moves to the other side in its longitudinal direction. Move to.

Each link mechanism 16 is configured to move the slide par 14 up and down in accordance with the longitudinal movement of the drive rod 15, and includes a first link 20 connected to the lower surface of the base 3, and a first link 20 connected to the lower surface of the base 3, Second link 21 to be connected
Equipped with. One end of the first link 20 is rotatably connected to a bracket 22 fixed to the lower surface of the base 3 by a first pin 23 having an axis parallel to the longitudinal direction of the slide par 14. Further, a bearing portion 24 is connected to the slide par 14 to enable vertical relative movement with respect to the slide par 14 within a limited range, and one end of the second link 21 is connected to a second pin 25 parallel to the bin 23. It is connected to the bearing part 24 via. Furthermore, the other ends of both links 20.21 are connected to the longitudinal ends of drive port 7 and 15 by connecting pins 26 parallel to each of the pins 23.25.

The bearing portion 24 is connected to the slide par 14 via a shut-hide adjustment mechanism 27. The shut-hide adjustment mechanism 27 includes a rack 28 that is integrally connected to the bearing portion 24 and extends downward, a pinion gear 29 that meshes with the rack 28, and a support body 30 that rotatably supports the pinion gear 29. The body 30 is integrally connected to the slide par 14. Further, the rank 28 is movably inserted into the support body 30.

A motor 31 for rotationally driving a pinion gear 29 is attached to one slide par 14 , and a drive shaft 32 is connected to the drive shaft 32 from this motor 31 to rotationally drive the pinion gear 29 of the shaft hide adjustment mechanism 27 in the other slide par 14 . will be extended.

The lower mold 5 and the upper mold 6 are provided with resilient members 33 such as a plurality of springs.
The upper die 6 is elastically biased upward by the spring force of these elastic members 33. on the other hand,
An elevating body 7 is arranged above the upper mold 6, and the upper mold 6 is elastically pressed against the lower surface of the elevating body 7 by the spring force of the resilient member 33.

Moreover, the upper limit position of the elevating body 7 is determined by the elastic member 33 in a range where the upper die 6 comes into pressure contact with the elevating body 7, so that the elevating body The upper mold 6 is interlocked and connected to the mold 7.

A balance cylinder 34 is interposed between both ends of each slide par 14 and each support portion 11, and when the slide par 14 descends, the balance cylinder 34
It performs a movement action and a horizontal posture maintenance action of the slide par 14.

Next, to explain the operation of this embodiment, when assembling the lower die 5 and the upper die 6, the bolster 4, which is released from the fixed state with the base 3, is slid and pulled out to the outside of the press device 1. , the lower die 5 and the upper die 6 are positioned and fixed on the bolster 4 in an assembled state with the elastic member 33 interposed therebetween by performing the blade alignment and clearance adjustment.

At this time, the link mechanism 16 is connected to the first and second links 20 .
21 is in the maximum bent position as shown in FIG. Therefore, the elevating body 7
has risen to a position where the upper die 6 cannot come into contact with the lower surface.

In this state, the bolster 4 with the lower mold 5 and upper mold 6 assembled as described above is fixed on the base 3, and the shaft height 1-
The adjustment mechanism 27 allows the support 30, that is, the slide par 1
4 is lowered until the upper die 6 comes into resilient pressure contact with the lower surface of the elevating body 7. This defines the upper limit position of the elevating body 7.

In this way, there is no need for work to attach the upper die 6 to the elevating body 7, and the blade alignment and clearance adjustment are performed outside the press device 1, making the attachment work easier.

After the lower die 5 and the upper die 6 are attached as described above, the drive rod 15 is reciprocated once in the longitudinal direction by the drive ax 7, so that the elevating body 7, that is, the upper die 6 is moved up and down twice. Blanking processing of thin steel plates 1 is performed one after another in succession.

Furthermore, since the resilient member 33 is interposed between the lower die 5 and the upper die 6, noise during press operation is reduced.

C1 Effects of the Invention As described above, according to the present invention, an elevating body is fixed to the upper ends of a plurality of slide rods that are vertically movable and pass through the base, and are movable up and down below the base to allow horizontal movement. A slide bar located at the bottom of the base is fixed to the lower end of the slide rod, and a drive rod is horizontally disposed so as to be able to reciprocate in the longitudinal direction below the base, and the lower part of the base and the slide bar are , are connected via a link mechanism to convert the longitudinal movement of the drive rod into the vertical movement of the slide bar, and a drive 1 for reciprocating the drive rod is provided at the bottom of the base.
) + FA is provided, so the frame that was conventionally required is no longer necessary, and miniaturization is possible.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal side view, and FIG. 2 is a sectional view taken along line I-r in FIG. 1, and FIG. be. 2... Press device, 3... Base, 4... Bolster, 5... Lower die, 6... Upper die, 7... Lifting body, 12
... Slide rod, 14 ... Slide bar, 15
... Drive rod, 16... Link mechanism, 20...
1st link, 21st... 2nd link

Claims (2)

[Claims] (1) A lower mold is fixed to a fixed base via a bolster, and an upper mold for press working in cooperation with the lower mold is connected to a press device that is linked and connected to an elevating body that can be raised and lowered. ,
An elevating body is fixed to the upper ends of a plurality of slide rods that are vertically movable and pass through the base, and a horizontally arranged slide bar that can be raised and lowered below the base is attached to the lower end of the slide rods. A horizontally arranged drive rod is fixed to the bottom of the base to allow longitudinal reciprocating movement below the base, and the lower part of the base and the slide bar are connected to 1. A press device, which is connected via a link mechanism for conversion, and is provided with a drive source for reciprocating a drive rod at the bottom of the base. (2) The link mechanism includes a first link whose one end is connected to the lower part of the base, and a second link whose one end is connected to the slide bar.
claim 1, characterized in that the other ends of both links are commonly connected to the drive rod.
) The press device described in section 2.