JPH0227938Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a mold assembly jig, and more specifically, the upper surface plate is guided by a fluid pressure cylinder for vertically moving the upper surface plate, which is movable up and down relative to the lower surface plate. This invention relates to a mold assembly jig that can be used for both functions to make the overall structure more compact.

For example, when creating a new blanking die for punching plate material using a press, before attaching it to the press's bolster or slide, temporarily attach it to the base plate that will serve as a reference for attaching the upper and lower dies. Check the uniformity of clearance, etc. by close engagement without inserting the

Needless to say, the purpose of the above checks is to avoid the risk of damaging the mold when it is attached to the press from the beginning, and to quickly replace the mold.

Conventionally, a general die set was used for the above purpose by changing the built-in bullet to one with a weaker biasing force, so the bullet was replaced depending on the weight of the mold attached to the upper surface plate. Or, it was necessary to press the upper surface plate against the lower surface plate by some means.

In order to solve the above problems, some devices have a structure in which the upper surface plate is moved up and down using a fluid pressure cylinder. However, in the past, a guide mechanism for guiding the upper surface plate and a fluid pressure cylinder were provided separately, which caused problems in making the overall configuration more compact.

This invention was made in view of the above-mentioned problems, and examples will be described in detail below with reference to the drawings.

FIG. 1 is an elevational view of the apparatus of this embodiment, in which the mold assembly jig 1 has two fluid pressure cylinders 5 and 7 erected on a lower surface plate 3 by appropriate means.
An upper surface plate 13 is provided via an inner sleeve 9 and an outer cylinder 11, which can be raised and lowered while being guided by the outer periphery of the inner sleeve 9.

A plunger 17 is fitted into the shaft hole 15 of the fluid pressure cylinders 5, 7, and an upper corner 19 of the plunger 17 is guided into the shaft hole 15 via a slide sleeve 21.

The upper small diameter portion 19 of the plunger 17 is connected to caps 23 and 25 provided on the upper surface plate 13 as appropriate.

The lower surface plate 3 and the upper surface plate 13 are provided with the top and bottom opposite in shape, and the base plate 27 for the lower mold and the base plate 27 for the upper mold are usually the same size and the same shape. There are some differences because there is a difference between placing it on the table and holding it under the surface plate.

To explain from the lower surface plate 3 based on Fig. 2,
The lower surface plate 3 is provided with positioning pins 29, for example, two each in the back direction (upward direction in FIG. 2) and the right direction. When the base plate 27 is pressed against this positioning pin 29, the dowel pin 31
is set so as to pass through a reference hole 33 of the base plate 27 and fit into a dowel hole 35 provided on the upper surface of the lower surface plate 3.

In FIG. 2, clamp plates 37 are provided on the left and right sides of the base plate 27, one end of which is placed on a base block 39, and the base plate 27 is fixed by pressing down on the middle part with a screw 41 and a knob 43.

Between the lower surface plate 3 and the crown plate 37,
A bullet 45 is provided to have the effect of quickly loosening the grip on the base plate 27 when the screw rod 41 is loosened.

In the case of the upper surface plate 13, it is necessary to press and grip the base plate 27 from below, so the hook blocks 47 are provided facing left and right as shown in FIG. All parts having the same purpose but differing in their insertion from the same reference number are given the same reference number.

Shown to the right of the lower surface plate 3 is a general pump device 49, which has a handle 51 in the front (lower part in FIG. 2) and a thrust bearing 5.
3 and a radial bearing 55, a round bar 57 is provided on the rear side.

A pin 59 perpendicular to the shaft is provided at the rear end of the round bar 57, and the tip of the pin 59 engages with a screw 63 provided inside a bottomed cylinder 61 that covers the entire round bar 57.

The aforementioned bottomed cylinder 61 as a piston moves upward in FIG.

Key 7 shown in the middle of pump cylinder 65 in FIG.
1 is a longitudinal keyway 73 provided in the bottomed cylinder 61
The bottomed cylinder 61 is prevented from rotating.

From the manifold 69 described above, there are branch oil passages 75,
An oil passage is connected to the hydraulic cylinders 5 and 7 via 77.

The branch oil passages 75 and 77 are designed so that the fluid and amount of fluid transmitted to the hydraulic cylinders 5 and 7 are independent of the length of the passage.

In addition, in the embodiment of the present invention, the lower surface plate 3 is also the upper surface plate 13.
In both cases, the central portion when the base plate 27 is positioned is a hole 75.

Furthermore, as shown in Fig. 1, a lower surface plate 3 and an upper surface plate 1 are installed.
A compressed bullet 77 is fitted in order to reduce the weight of the mold etc. attached to 3.

In the above configuration, when the handle 51 of the pump device 49 is operated to supply hydraulic oil to the fluid pressure cylinders 5 and 7, the outer cylinder 11 and the upper surface plate are guided by the outer peripheral surfaces of the fluid pressure cylinders 5 and 7. 13 will be raised. Conversely, when the hydraulic oil is discharged from the hydraulic cylinders 5 and 7, the upper surface plate 13 is lowered by its own weight. By the way, in order to assemble a mold using the apparatus according to this embodiment, since the upper and lower sides are completely matched, for example, the die (lower mold) is fixed to the base plate 27 and attached to the upper surface plate 13, and the punch (upper mold) is fixed to the base plate 27 and attached to the upper surface plate 13. type)
is temporarily attached to the base plate 27 and attached to the lower surface plate 3.

Next, by operating the handle 51 to lower the upper surface plate 13, the clearance between the punch and the die can be directly observed and measured from above through the hole 75 provided in the upper surface plate 13.

In the above case, if a gap in the clearance is found, it can be easily corrected by raising the upper surface plate 13 and hitting the punch type of the temporarily attached lower surface plate 3 with a wooden hammer or the like. It is.

As can be understood from the above description of the embodiments, in short, the present invention is such that the base plate 27 of the lower mold or the upper mold is placed above the lower surface plate 3 that supports the base plate 27 of the upper mold or the lower mold on the upper surface.
An outer cylinder that can be raised and lowered by being guided by the outer circumferential surface of a plurality of fluid pressure cylinders 5 and 7 installed upright on the lower surface plate 3 is made into a mold assembly jig comprising an upper surface plate 13 that is attached to the lower surface and can be moved up and down. 11 and the upper surface plate 13 are connected to each other, and a plunger 17 and the upper surface plate 1 are provided in each fluid pressure cylinder 5, 7 so as to be movable up and down.
3 are connected to each other, and the fluid pressure cylinders 5, 7 are connected to each other.
A pump device for supplying hydraulic oil to the lower surface plate 3 is provided.

As is clear from the above configuration, in the present invention, the outer cylinder 11 moves up and down while being guided by the outer peripheral surfaces of the fluid pressure cylinders 5 and 7 for moving the upper surface plate 13 up and down.
and the upper surface plate 13 are connected.
In other words, since the fluid pressure cylinders 5 and 7 serve both as a device for vertically moving the upper surface plate 13 and as a guide for guiding the vertical movement, the overall configuration can be made more compact. be.

Further, since the pump device for supplying hydraulic oil to the hydraulic cylinders 5 and 7 is provided on the lower surface plate 3, the overall configuration can be made more compact, and the hydraulic cylinders 5 and 7 can be made more compact. , 7 can easily move the upper surface plate 13 up and down.

[Brief explanation of drawings]

FIG. 1 is an elevational view of an embodiment of the present invention, and FIG. 2 is a plan view of the lower surface plate of the same device. Explanation of the symbols representing the main parts of the drawing, 1...Mold assembly jig, 3...Lower surface plate, 5...Fluid pressure cylinder,
13...Upper surface plate, 27...Base plate, 49
... Pump device, 75 ... Hole.

Claims (1)

[Scope of utility model registration request] The lower surface plate 13, on which the base plate 27 of the upper mold or the lower mold is mounted, is movably moved up and down. Board 3
An outer cylinder 11 that can be raised and lowered by being guided by the outer peripheral surfaces of a plurality of vertically installed fluid pressure cylinders 5 and 7, and the upper surface plate 1.
3 are connected to each other, and a plunger 17 provided in each fluid pressure cylinder 5, 7 so as to be vertically movable is connected to the upper surface plate 13, and hydraulic oil is supplied to the fluid pressure cylinders 5, 7. A mold assembly jig in which a pump device for supply is provided on the lower surface plate 3.