JPS62263900A - Press device - Google Patents

Abstract

PURPOSE:To permit an easy assembling work and to shorten the time for operation by fixing a bolster to a base plate in such a manner that the bolster can be taken out to the outside of the base plate and interposing a shut height adjusting mechanism which can adjust the vertical position of a lifting body to the spacing between the lifting body and driving source. CONSTITUTION:The bolster 4 which is released from the base plate 3 is slid and is drawn to the outside of a press device 2 at the time of assembling a lower die 5 and an upper die 6. Blade mating and clearance adjustment are then carried out. The lower die 5 and the upper die 6 are positioned and fixed onto the bolster 4 in the state of interposing an elastic member 33 between the dies and assembling the dies by lapping guide posts to guide cylinders. Such bolster 4 is fixed onto the base plate 3 and a support 30, i.e., sliding bar 14 is lowered by the shut height adjusting mechanism 27 until the upper die 6 is elastically brought into press contact with the bottom surface of the lifting body 7. The upper limit position of the lifting body 7 is thereby specified.

Description

Detailed Description of the Invention A0 Purpose of the Invention (1) Industrial Field of Application The present invention is directed to a method in which a lower mold is fixed to a fixed base via a bolster, and press working is performed in cooperation with the lower mold. The upper die relates to a press device that is interlocked and connected to an elevating body that can be raised and lowered.

(2) Prior Art Conventionally, in such press apparatuses, the upper mold is generally fixed to an elevating body.

(3) Problems to be Solved by the Invention However, in the prior art described above, when assembling the lower mold and the upper mold, the lower mold is fixed to the bolster and the upper mold is temporarily attached to the elevating body. Next, the elevating body is raised to secure the lower mold to the bolster 6 degrees, and then the elevating body is lowered again and the blades are aligned and the clearance is adjusted to fix the upper mold to the elevating body. , m(・1 The work was troublesome and time consuming.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a press device that can easily and quickly perform the IJI attachment of the lower die and the die.

B0 Structure of the Invention (1) Means for Solving the Problems According to the present invention, the bolster is fixed to the base in such a way that it can be taken out by an external force of the base, and the lower mold is fixed to the bolster;
The upper mold is connected to the lower surface of the elevating body by elastically pressing the upper mold to interlock and connect it, and there is a gap between the elevating body and the drive source when the drive source is stopped. (2) Operation With the bolster pulled out to the outside of the base, the lower mold and the upper mold are placed between them with a resilient member. The lower die is fixed to the bolster, and with the bolster fixed on the base, the vertically moving body is lowered by the shut bite adjustment mechanism, and the upper die is moved to the vertically moving body. The assembly is completed by elastic pressure contact.

(3) Example Hereinafter, an example of the present invention will be explained with reference to the drawings. In Figs. 1 and 2, a steel plate of a fixed shape made of thin steel plate l that is continuously supplied is punched. The press 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. Interlocked, connected.

A bit 9 is provided on the floor surface 8, and the base 3 is accommodated and fixed in the bit 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, at the lower part of the base 3, an abbreviated support part 11 extending downward from a portion corresponding to each guide cylinder 10 is provided. A slide rod 12 is slidably connected to each guide tube 10 so as to be vertically movable, and -1 of the slide loft 12 protruding from the guide tube 10
, a common elevating body 7 is fixedly installed at the end. Also, the support part 11
A cylindrical guide portion 13 coaxial with the guide tube 10 is provided at the lower end of the
is provided, and the lower end of the slide slot 12 is slidably engaged with the guide portion 13.

Below the base 3, both ends of a horizontal slide bar 14 are fixed to the lower part of the paired slide side tips 12, with both ends in contact with the support part 11, so that each slide bar 1-12 And the elevating body 7 is a slide bar 14
It goes up and down in response to the up and down movement of the robot.

At a position below the base 3 and above each slide bar 14, a horizontal drive rod 15 extending in a direction perpendicular to the longitudinal direction of the slide bar 14 is disposed so as to be freely reciprocated in the longitudinal direction. Both ends of the rod 15 are connected to the base 3 and each slide bar 14 via a link mechanism 16.

Further, the longitudinal center portion of the drive rod 15 is connected to a drive 11ULT fixed and supported on the lower surface of the base 3.

The drive tA17 consists of a pair of hydraulic cylinders 18 and 19 that face each other with their axes parallel to the longitudinal direction of the drive rod 15, and these hydraulic cylinders 18 and 19 are fixed to the F surface of the base 3. Moreover, the piston rods 18a and 19a of each hydraulic cylinder 18 and 19 are coaxially connected,
The longitudinal center portion of the driving rod 5 is connected to the connecting portion while allowing some vertical movement. Therefore, by contracting one hydraulic cylinder 19 and extending the other hydraulic cylinder 19, the drive rod 15 moves to one side in its longitudinal direction, and the other hydraulic cylinder 19
By contracting the hydraulic cylinder 18 and extending one of the hydraulic cylinders 18, the drive rod 15 is moved to the other side in its longitudinal direction.

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 downward relative movement with respect to the slide par 14 within a limited range, and a bearing portion 24 is connected to the second link 21.
One end is connected to a bearing portion 24 via a second pin 25 parallel to the pin 23 . Furthermore, the other ends of both links 20.21 are connected to the longitudinal ends of the drive rods 15 by means of connecting pins 26 parallel to the respective pins 23.25.

The bearing portion 24 is connected to the slide par 14 via a shut-high HPI adjustment mechanism 27. This shut bite adjustment mechanism 27 consists of a rank 28 that is integrally connected to the bearing part 24 and extends downward, a pinion gear 29 that meshes with the rank 28, and a support body 30 that rotatably supports the two pinion gears. The support 30 is integrally connected to the slider 14. Moreover, the rack 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 motor 31 to rotationally drive a pinion gear 29 of a shut bite adjustment mechanism 27 in the other slide par 14. will be extended.

The lower mold 5 and the upper mold 6 are connected to an intermediary member 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 one-hi type 6 is operated in response to the operation of the elevating body 7. The upper die 6 is interlocked and connected to the elevating body 7.

Further, on the upper surface of the lower mold 6, a plurality of guide tubes 35 extending vertically are provided upright, as shown in FIG. will be permanently installed. These guide tubes 35 and guide posts 36 determine the relative positions of the lower mold 5 and the upper mold 6, and guide the vertical movement of the mold 6.

A balance cylinder 34 is interposed between both ends of each slider/f-doher 14 and each support portion 11, and this balance cylinder 34 acts as a shock absorber when the slider 14 is lowered and maintains the horizontal posture of the slider 14. It has a holding effect.

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 l. , the lower die 5 and the upper die 6 are assembled by aligning the blades and adjusting the clearance, with the resilient member 33 interposed between them, and the guide post 36 slidingly fitted onto the guide cylinder 35. Position and fix.

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 to which the lower mold 5 and the north wall 6 are assembled as described above is fixed on the base 3, and the support 30, that is, the slide par 14 is fixed by the shut bite adjustment mechanism 27.
is lowered until the upper mold 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 si7, so that the elevating body 7, that is, the upper die 6 is raised and lowered twice, Blanking processing of the thin steel plate l is performed successively next k.

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

C9 Effects of the Invention According to the present invention, the bolster is fixed to the W stand so that it can be taken out to the outside of the base, and the lower mold and the upper mold fixed to the bolster are connected to the upper mold. are elastically pressed against the lower surface of the elevating object and connected via a resilient member, and between the elevating object and the drive source, the vertical position of the elevating object can be adjusted when the drive source is stopped. Since a shut-hide adjustment mechanism is installed, the lower mold and upper mold are assembled on the bolster outside the base, the bolster is fixed to the base, and then the elevating body is lowered using the height adjustment mechanism. The attachment work is completed, and the assembly work becomes easier and time can be shortened.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal side view, and is a sectional view taken along line I-1 in FIG. 2, FIG. 2 is a sectional view taken along line nn in FIG. FIG. 3 is a partially enlarged view between the lower mold and the upper mold.

Claims (1)

[Claims] 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 interlocked and connected to an elevating body that can be raised and lowered, and the elevating body is equipped with a drive source. In a press device in which the upper and lower molds are connected, the bolster is fixed to the base so that it can be taken out to the outside of the base, and the lower mold and the upper mold are fixed to the bolster. A shut height adjustment mechanism is installed between the elevating body and the drive source to adjust the vertical position of the elevating body when the drive source is stopped. A press device characterized in that: