JPH0123629Y2 - - Google Patents

Description

[Detailed description of the invention] a. Industrial application field This invention relates to a mold holder that supports punches and dies, and more specifically, the invention relates to a mold holder that supports punches and dies, and more specifically, the invention relates to a mold holder that supports punches and dies. Regarding the mold holder obtained.

B. Prior Art Conventionally, a structure in which a punch and a die are detachably supported in a mold holder is a structure in which the punch and die are attached to the mold holder via fasteners such as bolts.

C. Problems that the invention aims to solve Therefore, in the past, tools for loosening bolts were required to attach and detach punches and dies, and attachment and detachment was troublesome and troublesome. There was a problem.

d Means to solve the problem In order to solve the conventional problems as mentioned above,
In this invention, a key body with a detachable tip is biased toward the punch guide side in a groove formed on the outer circumferential surface of a punch guide containing a punch, and a die holder is provided to support the die. A die holder fixed part and a die holder movable part are provided in the part, and the die holder movable part is biased toward the die holder fixed part.

e Effect With the above configuration, the punch guide can be easily attached to and detached from the punch holder by moving the key body against the biasing force and leaving the tip part out of the groove of the punch guide. I can do it. Furthermore, in the die holder section, the die can be easily attached and detached by moving the die holder movable section against the biasing force to release the fixation of the die sandwiched between the die holder fixed section and the die holder fixed section. I can do it.

f Embodiment In FIG. 1, a punch holder 5 as an embodiment of the present invention is attached to the tip of the upper arm 3 of the mold holder 1 (left end in the figure), and a die holder 9 is attached to the tip of the lower arm 7.
is shown as an example.

In the punch holder 5, a punch body 11 is movable up and down in a cylindrical punch guide 13, and a flange portion 15 of the punch guide 13 and a punch head 17 are connected to each other.
A strip spring 19 is compressed and installed between.

In addition, the lower surface of the flange portion 15 and the upper arm 3
A lift spring 23 is installed between the punch mounting hole 21 provided at the tip of the punch and the upper surface of the punch mounting hole 21.

In a part of the outer periphery of the punch guide 13 described above,
A cut groove 25 having a desired length in the vertical direction is provided in the direction of cutting the thickness of the cylinder wall from the upper end, and an angled base named a key base 27 is provided at the upper part of the adjacent upper arm 3.

This key base 27 is provided with a longitudinal elongated hole 29, and a key protrusion 3 that can be freely engaged with and detached from the cut groove 25 described above.
1 and the ammunition 3 toward the column direction of the upper arm 3.
A key body 39 equipped with a ball plunger 37 which is biased to the position 5 is attached with a bolt 41. The upper surface of the key protrusion 31 is provided with an inclined surface 33 that slopes downward toward the cut groove 25 described above.

A die 43 is fixed to the tip of the lower arm 7 of the mold holder 1 by being sandwiched between a die holder fixed part 45 and a die holder movable part 47.

As is clear from FIGS. 2 and 3, the die holder fixed part 45 and die holder movable part 47 of the die holder 9 are connected by two pin rods 49 and 51 in the front-rear direction (in the left-right direction in FIGS. 1 and 2). ) is connected to.

The rear end (first
3) is provided with an inclined surface portion 53 whose lower side is inclined forward. A back plate 57 having an inclined surface portion 55 corresponding to this inclined surface portion 53 is movable up and down by the bottom of a hole in a central square portion 59 being guided by bolts 61, and the two bullets 63 shown in FIG. ,6
5 is biased upward.

Also, as is clear from FIGS. 2 and 3, the thin necks of the bottle rods 79, 51 engage with the recesses 67 of the back plate 57, and when the back plate 57 is pushed down, the engagement is removed. Pin rods 49, 51 come off.
Both can be pulled forward.

Therefore, the die 43 can be taken out by separating the die holder movable part 47 from the die holder fixed part 45.

As is already clear from the detailed description above, the punch holder that embodies the technical idea of the present invention can be attached to the punch guide by simply manually operating a part of the key body equipped with the key protrusion and removing it from the kerf. The punch can be easily taken out upwards.

Further, since the tip of the upper surface of the key protrusion 31 is provided with an inclined surface 33 which is inclined downward, the tip of the upper arm 3 can be easily inserted by simply pushing the assembly of the punch body 11 and the punch guide 13 into the punch mounting hole 21. I was able to install it on.

g. Effects of the invention As can be understood from the explanation of the examples above, the gist of this invention is as stated in the claims for utility model registration.As is clear from the description, in this invention, Key body 39 provided in the punch holder 5 that supports the punch
The tip of the key body 3 can be freely engaged with and detached from a groove 25 provided on the outer peripheral surface of the punch guide 13, and an inclined surface 33 is formed on the upper surface of the tip.
9 is biased toward the punch mounting hole 21 in the punch holder 5 portion.

Therefore, when mounting the punch guide 13 in the punch mounting hole 21, the punch guide 13 can be easily mounted by simply applying downward pressure while the lower end of the punch guide 13 is in contact with the inclined surface 33 of the key body 39.
Further, when removing the punch guide 13 from the punch mounting hole 21, the key body 39 is moved against the biasing force, and the key body 39 is removed from the punch guide 13.
This can be easily done by separating from the kerf 25.

Furthermore, in the present invention, the die holder 9 is provided with a die holder fixed part 45 and a die holder movable part 47, and the die holder movable part 47 is biased toward the die holder fixed part 45. The die 43 can be easily attached to and detached from the portion by moving the die holder movable portion 47 against the urging force.

That is, according to the present invention, the punch and die can be easily attached and detached and replaced without using tools.

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

[Brief explanation of drawings]

1 is a cross-sectional side view of a punch holder as an embodiment of the present invention, FIG. 2 is a plan view and a cross-sectional plan view of a die holder, and FIG. 3 is a cross-sectional view taken along the - arrow in FIG. 2. Explanation of symbols representing main parts of the drawings, 5... Punch holder, 11... Punch body, 13... Punch guide, 17... Punch head, 25... Cut groove,
31...Key protrusion, 37...Ball plunger.

Claims (1)

[Scope of utility model registration request] A cylindrical punch guide 13, which is a mold holder comprising a punch and a die, has a punch mounting hole 21 in the part of the punch holder 5 that supports the punch in the mold holder, and has a punch body 11 therein so as to be vertically movable. A key body 39 is mounted on the punch holder 5, with a cut groove 25 vertically formed on the outer peripheral surface of the key body 39, the tip of which can be freely engaged and detached from the groove 25, and an inclined surface 33 formed on the upper surface of the tip. The die 43 is provided in a portion of the die holder 9 that supports the die 43 that cooperates with the punch body 11.
A die holder fixing part 45 and a die holder movable part 47 are provided, and the die holder movable part 47 is connected to the die holder fixing part 45.
A mold holder characterized in that it is provided so as to be movable toward and away from the die holder and is biased toward the die holder fixing portion 45 side.