JPH0753793Y2 - Mold device in forging machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die device in a forging machine for pressing a material by a die provided on a machine base and a punch that moves back and forth with respect to the die to forge a product having a predetermined shape. .

[0002]

2. Description of the Related Art In a fitting hole provided in a die block of a machine base, a tapered die having a smaller diameter toward the front in the center of the front portion and a portion just behind the tapered die are arranged to receive a load acting on the die. A die case accommodating a member is detachably fitted, and a die accommodated in the die case and a punch that moves back and forth with respect to the die presses the material to produce bolts, nuts, or other various shapes. in forging molding machine forging machining parts and the like, there is disposed a mold apparatus, including the die at a predetermined position of the machine base opposed to the punch, the die device, as shown in FIG. 6, A die case 3 fitted and inserted in a die block 1 attached at a predetermined position of a machine base and fixed to the die block 1 by a fixing bolt 2, and a rear end portion of the case 3 are formed at the tip of the die case 3. To taper hole 3a It comprises a die 5 which is inserted and faces the punch 4, and a pressure receiving member 6 which is press-fitted together with the die 5 in the die case 3. The punch 4 and the die 5 are provided at the axial center portions of the die 5 and the pressure receiving member 6. An extruding pin 7 for extruding the material (a) molded by the method from the inside of the die 5 is inserted. With such a configuration, the tapered die and the pressure receiving member are press-fitted and held in the die case having the tapered hole, and the die case of the die case in which the die and the pressure receiving member are press-fitted and held is fitted into the fitting hole of the die block. , The die is assembled to the die block with high accuracy.

[0003]

By the way, the die 5
Is periodically taken out from the die case 3, inspected and maintained, or replaced with a new one. Further, when the die 5 is damaged during use, but it is becoming to be replaced immediately new ones will be appreciated that, as shown in FIG. 6, the die 5 at the rear end of the die casing 3 Since the die 3 is press-fitted into the case 3 together with the pressure receiving member 6, first, the fixing bolt 2 is loosened and the die case 3 is pulled out from the die block 1.
It is necessary to take out the die 5 after the die 5 is pushed out from the front side of the die case 3 using a hydraulic press or the like to take out the pressure receiving member 6.

When installing a new die 5 which has been inspected or replaced or is replaced on the machine base, contrary to the above, the die 5 together with the pressure receiving member 6 is press-fitted into the die case 3 by a hydraulic press or the like. It is necessary to insert the die case 3 into the die block 1 and fix it with the fixing bolts 2. Thus, when the die 5 is taken out from the die case 3 for maintenance or replacement, each time,
Since the die apparatus including the die 5 and the pressure receiving member 6 has to be disassembled and assembled, the work of taking out the die 5 is extremely troublesome.

On the other hand, as shown in FIG. 6 , the die 5 is replaced by inserting an insert member 8 which forms a predetermined forging space together with the die 5 into the die 5 and replacing only the insert member 8. Without molding, if a product having a different shape is molded or if the inner peripheral surface of the die 5 is scratched, the die 5 is replaced with an insert member 8 having an axial length dimension capable of covering the scratched portion. The die 5 may be continuously used and the life of the die 5 may be extended.
In the case of taking out further, similarly to the above, it is necessary to disassemble and assemble the mold device including the insert member 8, the die 5 and the pressure receiving member 6 each time, and the insert member 8 must be replaced. It was extremely troublesome.

Further, by repeatedly replacing the die 5, the die 5 and the taper hole 3a in the die case 3 are replaced.
Seizure occurs between the taper hole 3 and
a will be worn. In this case, the die case 3
The entire country was abandoned, which resulted in significant financial loss.

The present invention addresses the above-mentioned situation and holds the die case by press-fitting a tapered die pressure.
It is divided into a front case and a rear case that press-fits and holds the pressure receiving member.
Divide the die case consisting of the front and rear cases.
By fitting the i-block into the fitting hole, it is possible to assemble the die into the die block with high accuracy, while taking out the die forming the die device or inserting the insert member into the die. decomposition of the mold apparatus with the replacement, the assembly can be easily performed, thereon, it is possible to easily integration into the rear case of the pressure receiving member, a rear convey a load acting on the die to the rear casing from the pressure receiving member The case as a whole can be taken well, and the above
Properly tighten the front case and rear case without excess or deficiency.
It is an object of the present invention to provide a mold device that can be easily connected with a connecting torque and is economically advantageous.

[0008]

In order to solve the above problems, the present invention is characterized in that it is configured as follows.

First, the invention according to claim 1 of the present application (hereinafter,
The first invention) is a tapered die that has a smaller diameter toward the front in the center of the front and a fitting hole provided in the die block of the machine base. A die case accommodating a pressure receiving member for receiving is removably fitted, and the die housed in the die case and a punch that moves back and forth with respect to the die presses the material to forge a product having a predetermined shape. In a die device of a molding machine, the die case has a front case having a taper hole whose diameter decreases from a rear surface to a front surface thereof, and a tapered die is press-fitted and held in the taper hole, and a front surface side. has a recess in, and together with the pressure receiving member to the recess is divided into a rear case to be press-fitted held, one before these, you couple the rear case by a plurality of <br/> coupling means, the coupling Both as a means
Equipped with a threaded part at the end, the threaded part on one end side is
Is inserted through one of the rear cases and the other
Bolts to be screwed into one case, and others in the bolts
Use a nut that is screwed in advance to the threaded portion on the end side, and
With a square hole for fastening at the other end of the bolt
To the other end of the nut and the nut,
Thread the nut into the other case by screwing it into the other case.
The front case and the rear case by temporarily tightening the
Rotate the unit relative to the bolt to connect the front and rear cases.
Marks that display the relative rotation angle when they are matched
It is characterized by being provided .

A device according to claim 2 of the present application (hereinafter,
The second case) is characterized in that the front case in the first invention holds a die into which an insert member forming a predetermined forging space is press-fitted together with the die.

[0011]

According to the first aspect of the present invention, the tapered die and the pressure receiving member are press-fitted and held in the die case having the tapered hole, and the die block is fitted into the fitting hole of the die case in which the die and the pressure receiving member are press-fitted and held. By mating with, the die can be assembled to the die block with high accuracy. The die case fitted to the die block includes a front case having a tapered hole for press-fitting and holding the die, and a rear case having a concave portion for press-fitting and holding a pressure receiving member arranged immediately behind the die. And the front case and the rear case are detachably coupled by coupling means,
When taking out the die from the machine base for maintenance inspection or replacement, the die is taken out directly from the rear side of the front case by releasing the joining by the joining means and separating the front case from the rear case. As a result, the die can be taken out easily and easily. Therefore, as in the conventional case, when taking out the die, it is not necessary to take out the troublesome disassembly of the die device such as taking out the pressure-receiving member press-fitted together with the die into the die case each time and taking out the die from the die case.
As a result, the die can be taken out more easily than in the conventional case, and the workability of the taking-out work is improved.

Further, since the pressure receiving member is press-fitted and held in the recess formed on the front side of the rear case, it is not necessary to purposely press-fit from the rear part of the die case to the rear position of the die, and the pressure receiving member is inside the die case. It can be easily assembled into the die case, and the load acting on the die can be transmitted from the pressure receiving member to the die case and can be satisfactorily received by the entire die case.

Further, when the front and rear cases are joined together
On both ends of the bolt and nuts attached to the nut.
And the bolt and nut are in an integrated state.
And, using the above square hole as an example of the screw part on one end side of the bolt
For example, insert it from the rear case and screw it into the front case.
To bring the nut into contact with the front case, and
Temporarily fasten the front and rear cases with the
Then, use a tool such as a socket wrench to attach the above nut to the bolt.
Then, by rotating them relative to each other, both marks above
With the nuts and bolts in a deviated state, the front and rear cables
Can be tightened with the desired tightening torque required.
Wear. Due to this, the deviation angle between the above two marks and the required
If the relationship between the fastening torque and
There is no variation in
The resulting axial force will be obtained, resulting in the above front
Properly tighten the case and rear case with proper tightening
It is possible to easily conclude it with Luk.

[0014] Moreover, when it is necessary to discard the casing by seizure or the like between the die and casing are well is economically advantageous only to discard only the front case.

According to the second aspect of the invention, an insert member forming a predetermined forging space together with the die is press-fitted in the die held by the front case, and only the insert member is replaced. It is possible to mold products with different shapes without exchanging the die, or if the inner peripheral surface of the die is damaged due to forging, the axial length that can cover up the scratched part By changing the size of the insert member, only the insert member can be replaced and the die can be continuously used, and the life of the die can be improved. As in the case of the first invention, the front case is separated from the rear case by releasing the coupling by the coupling member, so that the front case is press-fitted into the die. Remove the insert member to be exchanged. Therefore, as in the conventional case, when exchanging the insert member, each time the pressure receiving member is taken out from the die case, the troublesome disassembling of the die device is performed, in which the insert member press-fitted into the die is taken out from the die case. Therefore, the insert member can be replaced more easily than before, and the workability of the replacement work is improved.

Further, a plurality of joints composed of bolts and nuts are used.
When connecting the front case and the rear case with the connecting means
In the same manner as in the case of the above first invention, each coupling means has a temporary
For the nut bolt from the tightening position to the connection completion position
There is a mark that allows you to check the relative rotation angle
The front and rear cases are always
Easy tightening with proper tightening torque without excess or deficiency.
It will be possible.

In addition, when it is necessary to discard the case due to seizure between the die and the case or between the die and the insert member, it is sufficient to discard only the front case. Will be advantageous.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of a mold apparatus in a forging and molding machine according to the present invention. As shown in the drawing, it moves back and forth through a conventionally known driving means such as a drive motor and a crank mechanism. A die device 12 is arranged at a predetermined position of the machine base so as to face the punch 11 to be punched. The die device 12 is a center part of the front part for pressing the material (b) between the die device 12 and the punch 11. Die 13 with smaller diameter toward the front
And a pressure receiving member 14 disposed immediately behind the die 13 for receiving a load acting on the die, and a die case 15 for press-fitting and holding the pressure receiving member 14 and the die 13.
The entire case 15 is fitted into a fitting hole 16a of a die block 16 fixed at a predetermined position of the machine base, and
In this embodiment, a pipe-shaped insert member 17 that forms a predetermined forging space together with the die 13 is press-fitted into the die 13, and the die 13 is replaced by replacing only the insert member 17. When a product having a different shape is formed without any damage, or when the inner peripheral surface of the die 13 is scratched by the forging process, the insert member 17 having an axial length dimension that can cover the scratched part is provided. By exchanging it, only the insert member 17 is exchanged so that the die 13 can be used continuously and the life of the die 13 is improved.

In the present embodiment, the die case 15 has a front case 15a into which the die 13 is press-fitted and has a tapered hole a for holding the die 13 together with the insert member 17, and the pressure receiving member 14. Is divided into a rear case 15b having a recess b for press-fitting and holding, and these front and rear cases 15a and 15b are connected to each other around the axis of the die 13 at equal intervals in the circumferential direction. They are integrally connected by means 18 ... 18.

As shown in the enlarged view of FIGS. 2 and 3, the coupling means 18 has screw portions 19b and 19d at both ends, and one end
Side screw portion 19d is inserted from the rear surface side of the rear case 15b and screwed into the front case 15a.
And a nut 20 screwed in advance to a threaded portion 19b on the other end side of the bolt 19,
A hexagonal hole 19c for fastening is provided at the other end 19a, and a screw portion 19d is formed at the tip of the bolt 19, and as shown in FIG. The nut 20 as shown in FIG.
Marks 21 and 22 are provided so as to coincide with each other in a state of being screwed into the screw portion 19b . Thus, before the above,
When connecting the rear cases 15a and 15b, the marks 21 and 22 should be aligned and the bolts and nuts should be aligned.
With the hexagonal hole 19c, the threaded portion 19d of the bolt 19 is screwed into the threaded hole 23 formed in the front case 15a while keeping the above-mentioned integrated state, so that the bottom portion of the nut 20 has a rear case. 15b by abutting on the nut 2
Front and rear cases 15a, 15b by means of 0 and bolts 19
Has been provisionally fastened. In this state, the socket
By further rotation in the direction indicated by the arrow the nut 20 in FIG. 3 by preparative wrench tool, as indicated by a chain line, the nut 20 in a state that the both marks 21 and 22 are displaced a predetermined angle and the bolt 19 By the front and rear case 15
A and 15b can be fastened with a desired fastening torque required. In this case, both marks 21,
If the relationship between the deviation angle of 22 and the required fastening torque is obtained in advance, there is no variation in each coupling means 18, and
In addition , a predetermined tightening axial force can be easily and reliably obtained, and as a result, the front case 15a and the rear case 15b can be easily fastened to each other with proper tightening torque without excess or deficiency. .

Then, as shown in FIGS. 1 and 4, the front case 15a and the rear case 15b are fitted into the diew lock 16 while being fastened by a plurality of fastening means 18 ... 18. Together with the rear case 1
5b is fixed to the upper surface of the die block 16 by a fixing bolt 24 screwed to the rear case 1
The entire case 15 consisting of 5b and the front case 15a is fixed to the die block 16.

In the rear case 15b, there are inserted push-out pins 25 for pushing the material (b) punched into the die 13 by the punch 11 from the inside of the die 13 and the push-out pins 25. The knockout pin 26 for synchronizing the movement of the punch 11 with the forward and backward movement of the punch 11 and moving the punch 11 forward with the backward movement of the punch 11 is the rear case 15b.
The knockout pin 26 is provided so as to penetrate the rear spacer member 27, and is driven by a knockout mechanism having a conventionally known configuration. Further, a sleeve 28 for supporting and guiding the rear end of the push-out pin 25 and the front end of the knockout pin 26 is fitted to the rear end of the rear case 15b.

Further, as shown in FIGS. 1 and 4, in this embodiment, screw holes 23 formed in the front case 15a into which the screw portions 19d of the bolts 19 constituting the fastening means 18 are screwed. A dial plug 29 made of a screw member is screwed into one of the holes 23, and the dial 29 is rotated to form a mark 29a on the surface and the screw hole 2 described above.
It is configured so that the frequency of use of the die 13 (the number of times of pressing) and the like at the time of exchanging the die 13 can be displayed depending on the position of the engraved mark 23a around the area 3. A loosening prevention member 29b (see FIG. 1) made of synthetic resin or the like is press-fitted into the thread portion of the dial plug 29, and the loosening prevention member 29b prevents the dial plug 29 from loosening. There is.

According to the above structure, the die 13 and the pressure receiving member 14 which are tapered to the die case 15 having the tapered hole a.
And press-fitting and holding, and the fitting hole 1 of the die block 16 of the die case 15 in which the die 13 and the pressure receiving member 14 are press-fitted and held.
6a, the die 13 can be assembled to the die block 16 in the machine base with high accuracy, and the die case 15 constituting the die device 12 is formed into the tapered die 1
Front case 15a having a tapered hole a for press-fitting and holding 3
And a rear case 15b having a recess b for press-fitting and holding the pressure receiving member 14 arranged immediately behind the die 13, and the front case 15a and the rear case 15b are connected by the fastening means 18. Since it is fastened, the die 13 should be maintained and inspected or replaced at the time of maintenance.
When removing from the machine base, the fixing bolts 24 are loosened to pull out the entire die case 15 from the die block 16, and the bolts 19 constituting the fastening means 18 are loosened to remove the front case 15a from the rear case 15b. By separating, the die 13 can be taken out from the front case 15a. Therefore, unlike the conventional case, when the die 13 is taken out, it is not necessary to take out the troublesome disassembling of the die device such as first taking out the pressure receiving member 14 from the die case 15 taken out from the die block 16 and then taking out the die 13. As a result, the die 13 can be taken out more easily than in the conventional case, and the workability of the taking out work is improved.

On the other hand, the die 13 held by the front case 15a is press-fitted into the die 13 to form a predetermined forging space together with the die 13, or scratches generated on the inner peripheral surface of the die 13 due to the forging. When replacing the insert member 17 for covering, the fixing bolt 24 is loosened to pull out the entire case 15 from the die block 16, and the bolt 19 constituting the fastening means 18 is loosened to remove the front case 15.
By separating a from the rear case 15b, it becomes possible to replace the insert member 17 press-fitted into the die 13 from the front case 15a, and when the insert member 17 is replaced as in the conventional case, the die block is replaced. 1
From the die case 15 extracted from 6, the pressure receiving member 14 is first taken out, and then the insert member 17 press-fitted into the die 13 is taken out. 17
Can be exchanged more easily than in the past, and the workability of the exchange work is improved.

Further, since the pressure receiving member 14 is press-fitted and held in the recess b formed on the front surface side of the rear case 15b,
Since there is no need to press-fit from the rear part of the die case 15 to the rear part of the die 13, the pressure receiving member 14 can be easily assembled in the die case 15, and the die 1
The load acting on the die 3 through the pressure receiving member 14
You can tell the whole case well.

When the insert member 17 is replaced with one having a different axial length, the push pin 25, the knockout pin 26 and the punch 11 are correspondingly changed.
The strokes will be adjusted together with the front and rear positions of the.

When it is necessary to discard the case 15 due to seizure between the die 13 and the case 15, it is sufficient to discard only the front case 15a holding the die 13, which is economical. Be advantageous to.

Next, a second embodiment of the mold apparatus according to the present invention.
Will be described with reference to FIG. 5. The mold of the second embodiment will be described.
As in the first embodiment , the device 52 has a die 53 having a smaller diameter toward the front surface for forming the material (d) between the punch 51 and the punch 51, and is arranged immediately behind the die 53.
Pressure receiving member 54 that receives a load acting on the die, and a die case 5 that press-fits and holds the pressure receiving member 54 and the die 53.
5 and the whole case 55 is fitted into a fitting hole 56a of a die block 56 fixed at a predetermined position of the machine base, and a predetermined forging space is formed in the die 53 together with the die 53. The pipe-shaped insert member 57 that forms the above is press-fitted.

The case 55 has a cylindrical casing 53a having a tapered hole a for press-fitting and holding the tapered die 53, and a thin plate made of, for example, high-strength steel spirally laminated on the outer periphery of the casing 53a. Reinforcing coil 5
3b and a front case 55a, and the pressure receiving member 54
Is divided into a rear case 55b having a recess b for press-fitting and holding, and these front and rear cases 55a, 55a,
55b is a bolt 5 having the same structure as in the first embodiment.
And a plurality of coupling means 58 ...
(Only one is shown in the drawing), the rear case 55b is fitted into the die block 56 and fixed by a fixing bolt 64 screwed onto the upper surface of the die block 56. The rear case 55b and the front case 55a.
The whole 5 is fixed to the die block 56.

Also in this embodiment, as in the first embodiment, one of the screw holes 63 formed in the front case 55a into which the screw portion 59d of the bolt 59 constituting the fastening means 58 is screwed. A dial plug 69, which is a screw member, is screwed into one of the two, and by rotating the dial plug 69, the position of the mark provided on the surface and the mark engraved around the screw hole 63 causes When the die 53 is replaced, the frequency of use of the die 53 (the number of times of pressing) and the like can be displayed. In addition, the dial plug 69
A loosening prevention member 69b made of synthetic resin or the like is press-fitted into the threaded portion, and the loosening prevention member 69b prevents the dial plug 69 from loosening.

According to the above construction, as in the case of the first embodiment described above, the die assembly 52 can be assembled with high precision by the assembly by fitting, while the die 53 is assembled to the die block 56 in the machine base with high accuracy. The constituting die case 55 is
It is divided into a front case 55a having a tapered hole a for press-fitting and holding the tapered die 53, and a rear case 55b having a recess b for press-fitting and holding a pressure receiving member 54 arranged immediately behind the die 53. At the same time, the case 55 that constitutes the mold device 52 is such that the front case 55a and the rear case 55b that hold the die 53 are connected to each other by the fastening means 58.
Since the die 53 or the insert member 57 is taken out from the machine base, the fixing bolt 64 is loosened so that the entire case 55 is joined to the die block 5.
6 and the bolt 59 constituting the fastening means 58 is loosened and the front case 55a is replaced with the rear case 55b.
The die 53 or the insert member 57 can be taken out from the front case 55a by separating the die 53 from the front case 55a. Therefore, when the die 53 or the insert member 57 is taken out as in the conventional case, first, the pressure receiving member 5 is pulled from the case 55 extracted from the die block 56.
It is not necessary to disassemble the die device after taking out the die 4 or taking out the die 13 or the insert member 57, whereby the die 53 or the insert member 57 can be taken out more easily than in the conventional case. Therefore, the workability of the taking out work is improved.

Further, since the pressure receiving member 54 is press-fitted and held in the recess b formed on the front surface side of the rear case 55b,
From the rear of the die case 55, the die 5
3 does not need to be press-fitted to the rear position, so that the pressure-receiving member 54 can be easily incorporated into the die case 55, and the load acting on the die 53 is transmitted from the pressure-receiving member 54 to the die case 55, and the die case as a whole. It is possible to take it well.

Further, the bolt 59 and the nut 60 are used.
The front case 55a and the rear case by a plurality of connecting means 58.
When connecting the base 55b, each connecting means 58 includes
Bolt of nut 60 from the temporary tightening position to the connection completion position
The mark display means for confirming the relative rotation angle with respect to 59 is
By being provided, the front case 55a and the rear case
It is necessary to maintain a proper tightening torque between the base 55b and
It becomes possible to conclude easily.

Moreover, as in the case of the first and second embodiments, when it is necessary to discard the case 55 due to burning between the die 53 and the die case 55, etc.,
Only the front case 55a holding the die 53 needs to be discarded, which is economically advantageous.

[0037]

As described above, according to the first invention, the tapered die and the pressure receiving member are press-fitted and held in the die case having the tapered hole, and the die case in which the die and the pressure receiving member are press-fitted and held. By fitting into the fitting hole of the die block,
The die can be assembled into the die block with high accuracy, and the die case fitted to the die block is provided in a front case having a tapered hole for press-fitting and holding the die, and immediately after the die. While dividing the arranged pressure-receiving member into a rear case having a recess for press-fitting and holding,
Since the front case and the rear case are detachably joined by the joining means, when the die is taken out of the machine base for maintenance inspection or replacement of the die, the joining by the joining means is released to remove the front case from the rear case. It is possible to take out the die directly from the rear surface side of the front case by separating from the front case, and each time when taking out the die, take out the pressure receiving member press-fitted together with the die into the die case each time. After that, the troublesome disassembly of the mold device such as taking out the die from the die case becomes unnecessary,
As a result, the die can be taken out more easily than in the conventional case, and the workability at the time of taking out the die can be improved.

In addition, since the pressure receiving member is press-fitted and held in the recess formed on the front surface side of the rear case, it is not necessary to press-fit from the rear part of the die case to the rear position of the die as in the conventional case. The member can be easily incorporated into the die case, and the load acting on the die can be transmitted from the pressure receiving member to the die case and can be satisfactorily received by the entire die case.

Moreover, a plurality of bolts and nuts are used.
For connecting the front case and the rear case by the connecting means
At this time, each coupling means is connected from the temporary tightening position to the coupling completion position.
Check the relative rotation angle of the nut against the bolt in
The front case can be
And the rear case with proper tightening torque without excess or deficiency.
It becomes possible to easily conclude.

Further, when it is necessary to discard the case due to seizure between the die and the case, it is economically advantageous to discard only the front case that holds the die.

Further, according to the second invention ,
While obtained the same effect, it is pressed into the die which is held in the front case to form a predetermined heading space together with the die, or also to cover the wounds that occurred on the inner peripheral surface of the die with the heading When the insert member is exchanged, the coupling by the coupling member is released and the front case is separated from the rear case, so that the insert member press-fitted into the die from the front case can be exchanged. , As in the conventional case, when exchanging the above-mentioned insert member, the pressure-receiving member press-fitted together with the die and the insert member into the die case is taken out, and then the insert member press-fitted into the die from the die case is taken out. This eliminates the need for disassembling a simple mold device, which makes it possible to replace the insert member more easily than before. It will be to improve the workability of work.

[0042] Further, the similar to the first invention, between the die and the case or if it is necessary to discard the casing by seizing between the die and the insert member, the die and the insert member It is economically advantageous to discard only the front case that holds the

[Brief description of drawings]

Longitudinal sectional view of a first embodiment of a mold apparatus according Forging molding machine according to FIG 1 the present invention.

FIG. 2 is an enlarged view showing, in a partially sectioned manner, a coupling means for fixing a front case and a rear case that constitute the mold apparatus of the first embodiment.

FIG. 3 is an enlarged front view of the coupling means seen from the line AA in FIG.

FIG. 4 is a front view of the mold apparatus according to the first embodiment seen from the line BB in FIG.

FIG. 5 is a vertical cross-sectional view of a mold device according to a second embodiment.

FIG. 6 is a vertical cross-sectional view of a conventional mold device.

[Explanation of symbols]

 11,51 Punch 12,52 Mold device 13,53 Die 14,54 Pressure receiving member 15,55 Die case 15a, 55a Front case 15b, 55b Rear case 16a, 56a Fitting hole 17,57 Insert member 18,58 Coupling Means 19,59 Bolts 20,60 Nuts a Tapered holes b Recesses (b), (c), (d) Material

Claims (2)

[Scope of utility model registration request] 1. A pressure receiving die for receiving a load acting on a die, which is provided in a fitting hole provided in a die block of a machine base, and has a tapered die having a diameter that becomes smaller toward a front surface in a center of a front portion and a portion immediately behind the die. A die-molding machine in which a die case accommodating a member is detachably fitted, and a die housed in the die case and a punch that moves back and forth with respect to the die presses a material to forge a product having a predetermined shape. A mold device in
The die case has a tapered hole having a diameter that decreases from the rear surface to the front surface thereof, and has a front case in which a tapered die is press-fitted and held in the tapered hole, and a recessed portion on the front surface side, and recess receiving member is divided into a rear case to be press-fitted held in Tei Rutotomoni, before these, while the rear casing is coupled by a plurality of <br/> coupling means, said coupling means,
At least both ends have screw parts, and the screw part at one end is the front part
From either the case or the rear case
The bolt that is inserted and screwed into the other case, and the bolt
Nuts that are screwed in advance to the threaded portion on the other end of the
In addition to having a square hole for fastening at the other end of the bolt
Is provided and the other end and nut of this bolt
The bolt together with the nut in the other case.
So that the nut comes into contact with one of the cases
After temporarily tightening the front and rear cases, attach the nut to the bolt.
Relative rotation and relative when connecting the front and rear cases
A mold device in a press molding machine, wherein marks for indicating a rotation angle are respectively attached . 2. A pressure receiving die for receiving a load acting on a die, which is provided in a fitting hole provided in a die block of a machine base, and has a tapered die whose diameter becomes smaller toward a front surface in a front center and a portion immediately behind the die. A die-molding machine in which a die case accommodating a member is detachably fitted, and a die housed in the die case and a punch that moves back and forth with respect to the die presses a material to forge a product having a predetermined shape. A mold device in
The die case has a tapered hole whose diameter decreases from the rear surface to the front surface, and a tapered die in which an insert member that forms a predetermined forging space together with the die is press-fitted is held in the tapered hole. that the front casing has a recess on the front side, and the recess receiving member is divided into a rear case to be press-fitted held in Tei Rutotomoni, before these, the rear casing is coupled by coupling means While the above bond
The step has threads on at least both ends, and the threads on one end
Is either the front case or the rear case.
Bolts that are inserted through the screw and screwed into the other case,
A nut that is pre-screwed on the threaded portion on the other end side of the bolt.
And the other end of the bolt for fastening.
There is a square hole, and the other end of this bolt and
The nut and the nut together with the nut.
Abut the nut on one case by screwing it into the case
After temporarily tightening the front and rear cases, tighten the nut.
When connecting the front and rear cases by rotating them relative to each other
Is marked with the relative rotation angle of
A mold device in a press molding machine, characterized in that