JPH0137781Y2 - - Google Patents

Description

[Detailed description of the invention] a. Industrial application field The present invention relates to a mold holder, and more specifically, a fixed block and a movable block are provided at the tip of the lower arm so that the mold can be tightened and loosened from the side. In the mold holder, a plurality of guide bolts are provided on the fixed block in parallel with the base part for guiding the movable block so as to be able to move toward and away from the fixed block while riding on the tip base part of the lower arm, and the movable block is mounted on the fixed block. The present invention relates to a mold holder in which V-shaped double tapered slopes are provided on the surface for pushing the mold toward the fixed block, and a bullet is compressed between the pair of wedge members.

b. Prior Art In conventional mold holders, especially punch press mold holders, the punching mold is fixed to the mold holder via fasteners such as bolts, so when the punching mold is attached and removed, it is difficult to replace the punching die. ,
Tools such as spanners and wrenches were used.

In recent years, mold holders have been devised that are equipped with tension loosening devices that use levers and levers, or that allow the mold to be replaced without using tools by removing the tension bolts laterally. This required space for operation on both sides.

c. Problems that the invention aims to solve: Since a mold holder such as a punch press has other mold holders installed in front of it and in close proximity to the left and right sides, tools must be removed when replacing the mold. It would be inconvenient not only to not use the device, but also to have a device that protrudes around it or that could not be pulled out.

d. Means for solving the problem As is already clear from the above, the present invention not only does not use tools when changing the mold, but also protrudes or pulls out an operating device around the holder in place of using a tool. To provide a mold holder configured such that no

e. Effects As will be described later, the device of the present invention does not protrude around the mold when replacing the mold, and does not pull out during operation, so the device does not allow other molds to be placed adjacent to the mold holder. This made it possible to install a mold holder.

f Embodiment The mold holder 1 illustrated in FIG.
Fix it with a T-bolt etc. that passes through the upper arm 7.
A punch 9 is held at the tip of the lower arm 3, and a die 11 corresponding to the punch 9 is held at the tip of the lower arm 3. The punch 9 mainly consists of a punch body 13 and a punch guide 15, and is inserted into a vertical hole 17 at the tip of the upper arm 7. A lift spring 21 is provided between them.

A strip spring 25 is compressed and provided between the punch head 23 at the upper end of the punch body 13 and the flange portion 19, and the lift spring 21 supports the entire weight of the punch 9 and lifts the punch from the workpiece W. The lower end of the punch guide 15 is separated and floated.

Since the strip spring 25 described above maintains a much stronger biasing force than the biasing force of the lift spring 21, when the ram 27 rises, the lower end step of the flange portion 19 and the large diameter portion of the punch body 13 are moved. The punch body 13 is pulled up to the position where it makes contact.

In this case, the lower end of the punch body 13 occupies a higher position than the lower end of the punch guide 15, so the punch body 13 must be pulled out from the workpiece W that is attached to the lower end of the punch body 13 (strip operation).
This is possible.

As shown in FIG. 1, a guide groove 29 provided on a part of the outer periphery of the punch guide 15 is provided with a retaining slide 31 provided on the upper arm 7 and urged by a bullet 33. Therefore, by pushing the slide 31 to the right in FIG. 1 against the bullet 33, the entire punch 9 can be easily removed upwards and the punch can be replaced.

As is clear from FIG. 1, the die 11 is provided with a stepped semicircular fixing block 35 that is slightly elevated at the tip of the lower arm 5 (on the left side of the figure). A projecting orientation pin 37 is provided.

Align the orientation pin 37 with the orientation groove 39 provided on a part of the outer periphery of the die 11, and when the entire punch 9 is pulled out upward, replace the die 11 so that the right side of the upper surface in FIG. 1 is stepped. The die 11 is fixed by pressing the semicircular movable block 41 to the right.

The movable block 41 is located at the tip end portion 4 of the lower arm 5.
3 and is guided by a plurality of guide bolts 45 parallel to the tip end portion 43 planted on the fixing block 35, so that it can freely slide towards and away from the fixing block 35.

On the vertical plane where the movable block 41 is pushed into the fixed block 35, V-shaped taper inclined surfaces 47, 47 are provided, as shown in FIGS. 4 and 6. 47 to perform a wedge action between it and the head of the guide bolt 45 1
A pair of wedge members 49, 49 are provided.

Further, finger rest facing face plates 51, 51 are provided between the wedge members 49, 49, and a bullet 53 is interposed therebetween.

A pair of wedge members 49, 49 shown in FIGS. 4 and 6 are guided by the engagement of a plurality of bolts 55 embedded in each of the above-described inclined surfaces 47, 47 and a T-groove 57 provided in the wedge member 49. It is a method.

In FIG. 1, FIG. 2, and FIG.
An embodiment is shown in which 9,59 are provided.

The passageway provided below the die 11 shown in FIGS. 1, 3, and 5 shows the scrap chute 61.

Thus, in the embodiment of the mold holder of the present invention, the fourth
From the state shown in the figure, when the finger rest plate 51 is held between the fingers and the finger rest face plates 51, 51 are brought close to each other as shown in FIG. 6, both ends of the wedge member 49 are removed from the head of the guide bolt 45.

Therefore, in FIG. 6, the finger rest face plate 51,
When the die 51 is pulled out, a gap is created between the die 11 and the movable block 41 as shown in FIG.
The die can then be easily removed upwards.

g. Effects of the invention As is clear from the above, the mold holder that embodies the technical idea of the invention not only allows punches and dies to be replaced without using any special tools, but also allows the punch and die to be exchanged without using any tools. Since there are no protruding parts or operating parts that would interfere with the mold holder, the mold holder can be placed close to the mold holder.

It is also clear that the design can be easily changed without departing from the technical idea of the present invention.

[Brief explanation of the drawing]

Fig. 1 is a side view of the device of the present invention, Fig. 2 is a plan view of the same as above, Fig. 3 is a front view of the same as above, Fig. 4 is an explanatory plan view of the movable block around the die of the present invention, and Fig. 5 is a plan view of the device of the present invention. The right side view and FIG. 6 are explanatory plan views when the movable block is moved from FIG. 4. Explanation of symbols representing main parts of the drawings: 1... Mold holder, 35... Fixed block, 41... Movable block, 45... Guide bolt, 47... Both tapered slopes, 49... Wedge member, 51 ... Finger rest facing plate, 53 ... Bullet machine.

Claims (1)

[Claims for Utility Model Registration] (1) A mold holder is provided with a fixed block and a movable block that can hold and loosen the mold from the side at the tip of the lower arm, and the lower arm is attached to the fixed block. A plurality of guide bolts for guiding the movable block so that it can approach and leave the fixed block while riding on the tip end of the block are provided parallel to the platform, and a V is formed on the surface for pushing the movable block toward the fixed block.
A character-shaped double taper inclined surface is provided, a pair of wedge members that slide on the inclined surface to perform a wedge action with the head of the guide bolt are provided, and a wedge member is provided between the pair of wedge members. A mold holder characterized by being provided with compressed bullet material. (2) The mold holder according to claim 1, which is a registered utility model, characterized in that the wedge member is provided with a finger rest plate that allows the wedge member to approach with a fingertip to the opposing portion holding the bullet.