JP7273528B2 - Stamping dies, stamping equipment and punches for stamping dies - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressing die, a pressing apparatus and a punch for a pressing die, and more particularly to a pressing die using vibration, a pressing apparatus and a punch for a pressing die.

Press working is widely used as a method of forming products from metal materials as a kind of plastic working.

A die for a press working device that places a workpiece between a lower die and an upper die and presses the upper die toward the lower die in a first direction to process the workpiece, wherein the upper die is the workpiece A working end for embossing in contact with a material and a vibrating end provided on the opposite side of the working end along a first direction to which vibration is applied are spaced apart in a second direction orthogonal to the first direction. a pair of holding parts provided between the working end and the vibrating end for fixing the upper mold and transmitting a driving force in the first direction to the upper mold; There is also a device in which a hole is provided between the pair of holding portions by penetrating the upper mold in the direction of (see, for example, Patent Document 1).

JP 2016-147289 A

However, the upper mold described above has a large restriction on the shape because the holes must be formed. Moreover, the vibration is attenuated by the holes.

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation, and aims to reduce the restrictions on the shape of processing, thereby making it easier to transmit vibrations with a simpler configuration.

A press working die according to one aspect of the present invention is a press working die that includes a punch, two support members that support the punch, and a vibrator that generates vibration. is a processing end that is the end on the side that presses the material to be pressed in the first direction when pressing, and an end that faces the processing end, where the vibrator is fixed and vibrates The vibrating end, which is the end to which the force is applied, and the side surface, which is the surface between the processing end and the vibrating end, are provided so as to face each other at a predetermined distance in a second direction orthogonal to the first direction. The vibrator is mounted on the vibration end to apply vibration to the vibration end, and the support member is formed in a shape corresponding to each of the recesses. and transmits a force in the first direction to the punch, and the distance in the first direction of the gap between the recess of the punch and the support member fitted in the recess is greater than or equal to the amplitude of vibration applied by the vibrator.

Two concave portions of the same shape are provided on the side surface between the working end and the vibrating end of the punch so as to face each other at a predetermined distance in a second direction orthogonal to the first direction. is formed, and the support member is formed in a shape corresponding to each of the recesses, fits in each of the recesses, and is adapted to transmit the force in the first direction to the punch, thereby simplifying the configuration. , less restrictions on the shape of the machined end. In addition, the direction of vibration does not change, and the vibration can be easily transmitted from the vibration end to the processing end. In this way, the restrictions on the shape of machining are reduced, and the vibration can be transmitted more easily with a simpler configuration. By setting the distance in the first direction of the gap between the recess of the punch and the support member fitted in the recess to be greater than or equal to the amplitude of the vibration applied by the vibrator, the vibration can be easily transmitted from the vibrating end to the processing end.

The vibrator can apply a vibration whose amplitude direction is the first direction to the vibrating end. By doing so, it becomes easier for the vibration to be transmitted from the vibration end to the processing end.

A die for press working can be provided in the press working device.

The punch of the die for press working according to one aspect of the present invention includes a working end that is an end on the side that presses the material to be pressed in the first direction during press working, and a punch that faces the working end. A predetermined distance in a second direction orthogonal to the first direction is provided on the vibration end, which is the end to which vibration is applied, and the side surface, which is the surface between the processing end and the vibration end. Two recesses of the same shape are formed so as to be opposite to each other with a distance of 20 mm apart, and each of the two recesses is a support member that fits in the recess, and is a support that transmits force in the first direction. The distance in the first direction of the gap between the member and the recess is formed to be greater than or equal to the amplitude of the vibration applied to the vibrating end.

Two concave portions of the same shape are formed on the side surface between the processing end and the excitation end so as to face each other at a predetermined distance in a second direction perpendicular to the first direction. Since the force in the first direction is transmitted to the punch, the configuration can be made simpler and the shape of the processed end is less restricted. In addition, the direction of vibration does not change, and the vibration can be easily transmitted from the vibration end to the processing end. In this way, the restrictions on the shape of machining are reduced, and the vibration can be transmitted more easily with a simpler configuration. By setting the distance in the first direction of the gap between the recess and the support member fitted in the recess to be greater than or equal to the amplitude of the vibration applied to the vibrating end, the vibration can be easily transmitted from the vibrating end to the processing end.

The punch can be formed in a symmetrical shape across a virtual flat plane extending from the working end to the vibrating end and positioned at equal distances from the two recesses. By doing so, the vibration is less likely to be attenuated, and the vibration is more easily transmitted from the vibration end to the processing end.

Forming the punch into a symmetrical outer shape across a virtual flat plane perpendicular to the first direction and positioned at a position where the distance from the processing end is equal to the distance from the vibration end. can be done. By doing so, the vibration is less likely to be attenuated, and the vibration is more easily transmitted from the vibration end to the processing end.

In the punch, a flat planar cut that is sandwiched between the two recesses so that the distance from the two recesses is the same, is orthogonal to the second direction and along the first direction, and penetrates the opposing side surface However, it is possible to further form a cut having a length shorter than the length from the processing end to the vibration end. By doing so, the vibration is less likely to be attenuated, and the vibration is more easily transmitted from the vibration end to the processing end.

Each of the two recesses formed in the punch can have a linear groove shape whose length direction is a direction orthogonal to the first direction and the second direction. By doing so, it is possible to achieve a simpler configuration that is easier to process and easier to assemble.

A punch for the press die can be provided in the press machine.

As described above, according to the present invention, the restrictions on the shape of processing are further reduced, and vibration is more easily transmitted with a simpler configuration.

It is a figure which shows the example of a structure of the metal mold|die 11 of press working of one embodiment of this invention. 4 is a perspective view showing the shape of a punch 51; FIG. 4 is a front view showing the front shape of the punch 51. FIG. 5 is a bottom view showing the shape of the upper surface of the punch 51; FIG.

Embodiments of the present invention will be described below, and the correspondence between the constituent elements of the present invention and the embodiments described in the detailed description of the invention is as follows. This description is to ensure that the embodiments supporting the invention are described in the detailed description of the invention. Therefore, even if there are embodiments that are described in the detailed description of the invention but are not described here as embodiments corresponding to the constituent elements of the present invention, they are It does not mean that the embodiment does not correspond to its constituent features. Conversely, even if an embodiment is described herein as corresponding to a constituent feature, that means that the embodiment does not correspond to constituent features other than that constituent feature. Nor is it something to do.

A press working die according to one aspect of the present invention is a press working die that includes a punch, two supporting members that support the punch, and a vibrator that generates vibration, the punch ( For example, the punch 51) shown in FIG. , the vibrator is fixed, and vibration is applied to the vibrating end, and to the side surface between the processing end and the vibrating end, a predetermined Two concave portions of the same shape are formed so as to face each other with a distance therebetween, and a vibrator (for example, the vibrator 52 in FIG. 1) is attached to the vibrating end and vibrates at the vibrating end. and support members (eg, support members 53-1 and 53-2 in FIG. 1) are formed in a shape corresponding to each of the recesses, fit into each of the recesses, and transmit force in the first direction to the punch. The distance in the first direction of the gap between the recess of the punch and the support member fitted in the recess is greater than or equal to the amplitude of vibration applied by the vibrator.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG.

FIG. 1 is a diagram showing an example of the configuration of a die 11 for press working according to one embodiment of the present invention. A press die 11 shown in FIG. 1 vibrates the punch.

In the following description, the front and rear directions of the die 11 for press working are indicated by the Y axis, the up and down directions are indicated by the Z axis, and the left and right directions are indicated by the X axis. Further, hereinafter, the left side in FIG. 1 in the X-axis direction is simply referred to as the left side, and the right side in the X-axis direction in FIG. 1 is simply referred to as the right side. Further, hereinafter, the front side in FIG. 1 in the Y-axis direction is simply referred to as the front side, and the back side in FIG. 1 in the Y-axis direction is simply referred to as the rear side. Furthermore, hereinafter, the upper side in FIG. 1 in the Z-axis direction is simply referred to as the upper side, and the lower side in FIG. 1 in the Z-axis direction is simply referred to as the lower side. Note that the Z-axis direction is also simply referred to as the up-down direction, the X-axis direction is simply referred to as the left-right direction, and the Y-axis direction is simply referred to as the front-rear direction. A direction along a plane parallel to the X-axis and the Y-axis is also simply referred to as a horizontal direction or a lateral direction. In FIGS. 2-4, the X, Y and Z axes are similarly illustrated.

The die 11 for press working is attached to a press working device, and is used to process ferrous materials such as steel plates, steel materials, or special steels, non-ferrous metal materials such as aluminum, copper, titanium or magnesium, or non-ferrous metal materials such as alloys thereof, plastic materials, and composite materials. Pressing non-metallic materials such as The press machine can be a mechanical press system or a hydraulic press system with a crank drive mechanism, a knuckle drive mechanism or a link mechanism, or a servo press. That is, the press working device can be provided with a die 11 for press working. The press machine presses a metal material by applying a working force to the die 11 for press working.

The die 11 for press working is subjected to shearing (including cutting and cutting), blanking (including blanking), trimming, bending, flange forming, drawing, molding, compression or joining. It is used for press processing such as processing. A press die 11 used for punching will be described below as an example.

The die 11 for press working shown in FIG. 1 consists of an upper die 21 and a lower die 22 . The upper mold 21 and the lower mold 22 are so-called molds with a die set. The upper die 21 is attached to the slide of the press working device, and is displaced in the Z-axis direction (vertical direction) by the press working device during press working, and the material is sandwiched and pressed between the lower die 22 and processed. do. The lower die 22 is attached to the bolster plate of the press working device and fixed in position during press working. The lower die 22 includes a die 31 , a die plate 32 and a die holder 33 .

The upper die 21 includes a punch 51, a vibrator 52, support members 53-1 and 53-2, a punch plate 54, a punch plate 55, a spacer 56, a punch holder 57, a stripper 58 and guide pins 59. As shown in FIG.

First, the configuration of each part of the upper mold 21 will be described. The punch 51 is displaced downward by the working force of the press working device, pressed against the material, and transfers the shape to the material. The punch 51 is pressed against the material in the punching process to punch the material into a desired shape.

The vibrator 52 applies vibration to the punch 51 whose amplitude direction is the Z-axis direction. The vibrator 52 is a so-called vibrating device or the like, and includes a semiconductor such as a piezoelectric element, an electric motor in which an eccentric weight is attached to a rotating shaft, a solenoid that linearly displaces the weight, or a linear displacement of the weight. It consists of an air tool (air vibrator) etc. The frequency of vibration generated by the vibrator 52 can range from 20 Hz to 40 kHz, which corresponds to the audible band of speech or the band of ultrasonic waves. The frequency of the vibration generated by the vibrator 52 is determined by the speed at which the punch 51 is displaced in the vertical direction, the type of material, the shape and size to be formed, and the like. The amplitude of the vibration generated by the vibrator 52 is determined by the speed at which the punch 51 is displaced in the vertical direction, the type of material, the shape and size to be formed, and the like. For example, the frequency of the vibration generated by the vibrator 52 is such that the speed of displacement due to the vibration in the direction of amplitude (the speed of deformation of the punch 51 (in particular, the speed of deformation of the processing end 101 described later)) is in the vertical direction of the punch 51. It is determined so as to be faster than the displacement speed.

The support member 53-1 is formed in the shape of a quadrangular prism. The support member 53-1 is a so-called key that is engaged with the punch 51 and the punch plates 54 and 55 to fix the punch 51 and the punch plates 54 and 55 together. The right side of the support member 53-1 is fitted into a recess formed in the left side of the punch 51 and fixed in the X-axis direction and the Z-axis direction. Details of the recess formed on the left side surface of the punch 51 will be described later. The left side of the support member 53-1 is sandwiched between the punch plate 54 and the punch plate 55 and fixed in the X-axis direction and the Z-axis direction.

The support member 53-2 is formed in the shape of a quadrangular prism. The support member 53-2 is a so-called key that is engaged with the punch 51 and the punch plates 54 and 55 to fix the punch 51 and the punch plates 54 and 55 together. The left side of the support member 53-2 is fitted into a recess formed in the right side of the punch 51 and fixed in the X-axis direction and the Z-axis direction. Details of the recess formed on the right side surface of the punch 51 will be described later. The right side of the support member 53-2 is sandwiched between the punch plate 54 and the punch plate 55 and fixed in the X-axis direction and the Z-axis direction.

In this way, the support members 53-1 and 53-2 are formed in shapes corresponding to the respective recesses formed on the side surface of the punch 51, fit into the respective recesses, and are mounted via the punch plates 54 and 55. to transmit force in the Z-axis direction to the punch 51 .

The punch plate 54 and the punch plate 55 position and fix the punch 51 via supporting members 53-1 and 53-2 sandwiched therebetween. Also, the punch plate 54 and the punch plate 55 are fixed to the spacer 56 by bolts 71 .

Also, the punch plate 54 and the punch plate 55 hold the positional relationship between the punch 51 and the stripper 58 . Furthermore, the punch plate 54 positions the guide pin 59 and fixes the guide pin 59 . A stripper 58 removes material from the punch 51 . The stripper 58 is held by bolts 73 through which springs 60, which are coil springs, pass through holes in the punch plates 54, 55 and spacers 56, respectively. The stripper 58 is displaced upward with respect to the punch 51 against the biasing force of the spring 60 when the punch 51 pulls out the material. The stripper 58 is displaced downward with respect to the punch 51 by the biasing force of the spring 60 when the punch 51 is displaced upward after the material is pulled out, thereby stripping off the material adhering to the punch 51 . The lower surface of the stripper 58 is formed with an upwardly recessed recess 81 so that the material adhering to the punch 51 can be easily removed. The guide pin 59 maintains the positional relationship between the punch 51 and the die 31 by entering the hole of the die 31 when the punch 51 is displaced downward.

A spacer 56 holds the positions of the punch 51 and the punch holder 57 . The punch holder 57 is fixed to the spacer 56 with a bolt 72 screwed onto the spacer 56 . The punch holder 57 holds the entire upper die 21 , that is, the punch 51 , vibrator 52 , support members 53 - 1 and 53 - 2 , punch plate 54 , punch plate 55 , spacer 56 , stripper 58 and guide pin 59 . The punch holder 57 is attached to the slide of the press working device with bolts (not shown) or the like.

The punch plate 54 , punch plate 55 and stripper 58 do not directly contact the punch 51 .

Next, the lower mold 22 will be explained.

The die 31 is a tool on the receiving side of the punch 51. The die 31 sandwiches the material and the punch 51 pressed by the working force of the press working device to transfer the shape to the material. In punching, the die 31 sandwiches the material with the punch 51 pressed by the working force of the press working device, and punches the material into a desired shape.

The die plate 32 is fixed between the die 31 and the die holder 33 and holds the position of the die 31 with respect to the die holder 33 . Die holder 33 holds die plate 32 and die 31 . The die holder 33 is screwed with bolts 41-1 to 41-4 (bolts 41-3 and 41-4 are not shown) through the holes of the die 31 and the die plate 32, respectively. Bolts 41-1 through 41-4 secure the die 31, die plate 32 and die holder 33 to each other.

The die holder 33 is attached to a bolster plate of a press machine with bolts (not shown).

Next, the details of the configuration of the punch 51 will be described with reference to FIGS. 2 to 4. FIG. FIG. 2 is a perspective view showing the shape of the punch 51. FIG. FIG. 3 is a front view showing the front shape of the punch 51. As shown in FIG. FIG. 4 is a top view showing the shape of the top surface of the punch 51. FIG.

In FIG. 3 , the dashed-dotted line AA′ indicates the center of the front surface of the punch 51 in the X-axis direction (horizontal direction), and the dashed-dotted line BB′ line indicates the Z-axis direction (vertical direction) on the upper surface of the punch 51. ). In FIG. 4, the dashed-dotted line CC' indicates the center of the upper surface of the punch 51 in the X-axis direction (horizontal direction), and the dashed-dotted line DD' indicates the Y-axis direction (horizontal direction) on the upper surface of the punch 51. anteroposterior direction).

The punch 51 is formed in the shape of a vertically elongated, generally rectangular parallelepiped having a depressed recess in the central portion of the side surface. The punch 51 is formed in a symmetrical shape. That is, the punch 51 is formed in a line-symmetrical shape with respect to the YZ plane passing through the center in the X-axis direction (horizontal direction). Alternatively, the punch 51 is formed in a vertically symmetrical outer shape. That is, the punch 51 is formed to have an outer shape that is line-symmetrical with respect to the XY plane passing through the center in the Z-axis direction (vertical direction).

A lower end of the punch 51 is formed as a working end 101 . The working end 101 presses downward the material to be pressed during the press working. The processed end 101 has a shape corresponding to a desired shape obtained by pressing. For example, in the case of punching, the working edge 101 is pressed against the material to transfer the shape to the material, thereby punching the material into the desired shape. For example, the processing end 101 is formed in a square shape when punching a square plate material.

The upper end of the punch 51 is formed as a vibrating end 102 . A vibrator 52 is fixed to the vibrating end 102 to apply vibration. The vibrating portion 121 is formed as a screw hole at the center of the vibrating end 102 in the X-axis direction (horizontal direction) and the Y-axis direction (front-rear direction). A vibrator 52 is attached to the vibrating section 121 . The vibrator 52 is screwed into the vibrating section 121 and mounted at the center of the vibrating section 121 in the X-axis direction (horizontal direction) and the Y-axis direction (front-rear direction). Vibration is applied to the center in the (horizontal direction) and the Y-axis direction (front-rear direction).

A recess 105-1 is provided in the central portion of the left side surface of the punch 51. As shown in FIG. A recess 105-2 is provided in the central portion of the right side surface of the punch 51. As shown in FIG. The concave portion 105-1 and the concave portion 105-2 are provided so as to face each other with a predetermined distance therebetween in the X-axis direction (horizontal direction). The position in the Z-axis direction (vertical direction) where the recess 105-1 is formed is the same as the position in the Z-axis direction (vertical direction) where the recess 105-2 is formed.

The concave portion 105-1 is formed in such a shape that a predetermined gap is generated when the support member 53-1 is fitted. More specifically, when the right side of the support member 53-1 is fitted in the recess 105-1, the Z-axis direction (vertical direction) of the gap between the recess 105-1 and the support member 53-1 fitted in the recess 105-1 ) is equal to or greater than the amplitude of the vibration applied by the vibrator 52, it is formed in a shape corresponding to the shape of the right side of the support member 53-1. For example, the distance in the Z-axis direction (vertical direction) between the recess 105-1 and the support member 53-1 fitted in the recess 105-1 is 100 μm to 5 μm. As an example, the distance in the Z-axis direction (vertical direction) between the recess 105-1 and the support member 53-1 fitted in the recess 105-1 is 20 μm.

Similarly, the recess 105-2 is formed in a shape that creates a predetermined gap when the support member 53-2 is fitted. More specifically, when the left side of the support member 53-2 is fitted in the recess 105-2, the Z-axis direction (vertical direction) of the gap between the recess 105-2 and the support member 53-2 fitted in the recess 105-2 ) is equal to or greater than the amplitude of the vibration applied by the vibrator 52, it is formed in a shape corresponding to the shape of the left side of the support member 53-2. For example, the distance in the Z-axis direction (vertical direction) between the recess 105-2 and the support member 53-2 fitted in the recess 105-2 is 100 μm to 5 μm. As an example, the distance in the Z-axis direction (vertical direction) between the recess 105-2 and the support member 53-2 fitted in the recess 105-2 is 20 μm.

The shape of the recess 105-1 and the shape of the recess 105-2 are the same.

By doing so, the direction of the vibration transmitted to the punch 51 does not change, the vibration applied to the vibrating end 102 is directly transmitted to the processing end 101, and the vibration applied to the vibrating end 102 is more damped. Vibration applied to the vibrating end 102 is efficiently transmitted by the working end 101 .

The recess 105-1 and the recess 105-1 are arranged such that the gap generated when the support member 53-1 is fitted in the recess 105-1 is the same as the clearance generated when the support member 53-2 is fitted in the recess 105-2. The recess 105-2 and the support members 53-1 and 53-2 are formed.

The shape of the recess 105-1 and the shape of the recess 105-2 are symmetrical about the center in the X-axis direction (horizontal direction) indicated by line AA'. The concave portion 105-1 and the concave portion 105-2 are each formed in a linear groove shape whose length direction is the Y-axis direction (front-rear direction).

Note that the recess 105-1 and the recess 105-2 can be formed in a desired shape as long as the shape is such that the punch 51 can be held. For example, the recess 105-1 and the recess 105-2 can be formed into cylindrical or quadrangular prism-shaped depressions. Further, for example, the recess 105-1 and the recess 105-2 can be formed in a semicircular or triangular shape on a plane defined by the Z-axis and the X-axis, or can be defined by the Z-axis and the Y-axis. It can also be circular, oval or elliptical in plan view.

The shapes of the recesses 105-1 and 105-2 can be determined relatively freely. When the concave portions 105-1 and 105-2 are deep (largely hollowed out in the X-axis direction), vibrations gather in the portion between the concave portions 105-1 and 105-2, and resistance to vibration increases. , the working force of the press working device can be transmitted to the punch 51 more efficiently. In this case, the resistance to vibration can be further reduced by lowering the height of the recesses 105-1 and 105-2 in the Z-axis direction.

When the recesses 105-1 and 105-2 are shallow (slightly hollowed out in the X-axis direction), the resistance to vibration can be further reduced. In this case, by increasing the height of the recesses 105-1 and 105-2 in the Z-axis direction, the working force of the press working device can be transmitted to the punch 51 more effectively.

A cut 103 long in the Z-axis direction (vertical direction) is formed in the central portion of the front face of the punch 51 . As shown in FIG. 3, the notch 103 is formed along the center of the front surface of the punch 51 in the X-axis direction (horizontal direction). The notch 103 is a flat planar notch. The notches 103 pass through the front and back of the punch 51 . That is, the notch 103 penetrates the opposing side surfaces of the punch 51 .

The center position of the notch 103 in the length direction coincides with the center position of the punch 51 in the Z-axis direction (vertical direction). A hole 104 penetrating through the front and rear surfaces of the punch 51 is formed at the center position of the punch 51 in the Z-axis direction (vertical direction). The length of the slit 103 in the Z-axis direction (vertical direction) is shorter than the length of the punch 51 in the Z-axis direction (vertical direction). The upper end of the cut 103 does not reach the processed end 101 . The lower end of the notch 103 does not reach the vibration end 102 .

The notch 103 is sandwiched between the recesses 105-1 and 105-2 so that the distances from the recesses 105-1 and 105-2 are the same.

The width (length in the X-axis direction) of the notch 103 can be 5 mm to 0.1 mm. As an example, the width (length in the X-axis direction) of the notch 103 can be 0.5 mm.

By providing the notch 103, when the punch 51 is vibrated, the notch 103 moves left and right. Vibration is easily transmitted to the portion sandwiched between the recess 105-2 and the recess 105-2. In this way, vibrations applied to the vibrating tip 102 can be directed to be transmitted toward the working tip 101 , and vibrations applied to the vibrating tip 102 are more efficiently transmitted by the working tip 101 . Further, by narrowing the width (length in the X-axis direction) of the notch 103, the volume ratio of the notch 103 to the entire punch 51 becomes smaller, thereby damping the vibration applied to the vibration end 102. less, and vibrations applied to vibrating tip 102 are more efficiently transmitted to working tip 101 .

In this way, the punch 51 has a flat imaginary surface extending from the working end 101 to the vibrating end 102 and is located at equal distances from the recesses 105-1 and 105-2. It is formed in a symmetrical shape by sandwiching it. The punch 51 is a flat virtual surface perpendicular to the vertical direction, which is the direction of displacement during press working, and is positioned at a position equal to the distance from the processing end 101 and the excitation end 102 . It is formed into a symmetrical outer shape across a wide surface.

As described above, the upper die 21 includes the punch 51, the oscillator 52, and the supporting members 53-1 and 53-2. The punch 51 is formed with a processing end 101, an excitation end 102, and recesses 105-1 and 105-2.

The vibrator 52 is attached to the vibrating end 102 and applies vibration to the vibrating end 102 . The support members 53-1 and 53-2 are formed in shapes corresponding to the recesses 105-1 and 105-2, respectively, fit into the recesses 105-1 and 105-2, respectively, and are attached to the punch 51 in the Z-axis direction. to transmit the force of

The processing end 101 is the end on the side that presses the material to be pressed in the Z-axis direction when performing press processing. The vibrating end 102 is an end opposite to the processing end 101, to which the vibrator 52 is fixed and to which vibration is applied. The concave portion 105-1 and the concave portion 105-2 have the same shape and face the side surface between the processing end 101 and the excitation end 102 with a predetermined distance in the X-axis direction perpendicular to the Z-axis direction. It is designed to

By doing so, a simpler configuration can be achieved, and restrictions on the shape of the processed end 101 are reduced. Also, the vibration is more easily transmitted from the vibrating end 102 to the processing end 101 . It is possible to further reduce restrictions on the shape of machining, and to facilitate the transmission of vibration with a simpler configuration.

The distance in the Z-axis direction between the recesses 105-1 and 105-2 of the punch 51 and the support members 53-1 and 53-2 fitted in the recesses 105-1 and 105-2 is the distance of the vibration applied by the vibrator 52. is greater than or equal to the amplitude.

The vibrator 52 applies a vibration whose amplitude direction is the Z-axis direction to the vibrating end 102 .

The punch 51 is a flat imaginary surface extending from the working end 101 to the vibrating end 102, and is formed into a symmetrical shape with respect to the imaginary surfaces positioned at equal distances from the recesses 105-1 and 105-2. It is

Although the mold 11 for press working has been described as having a regular arrangement structure, it can also have a reverse arrangement structure. In this case, the die 31 is provided on the upper die and the punch 51 is provided on the lower die.

Moreover, the shapes of the processing end 101 and the excitation end 102 described above are examples, and may be any desired shape.

As described above, the punching process is an example, and any press process such as trimming or bending can be applied.

In addition, the material to be pressed may be any material such as ferrous material, non-ferrous metal material, or non-metallic material. Furthermore, the die 11 for press working can be used in any type of press working apparatus.

Moreover, the embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

11 die, 21 upper die, 22 lower die, 31 die, 32 die plate, 33 die holder, 51 punch, 52 transducer, 53-1 and 53-2 support members, 54 and 55 punch plate, 56 spacer, 57 punch holder, 58 stripper, 59 guide pin, 101 processing end, 102 vibration end, 103 notch, 104 hole, 105-1 and 105-2 concave portions, 121 vibration part

Claims (9)

A die for press working, comprising a punch, two support members for supporting the punch, and a vibrator for generating vibration,
The punch includes
a processing end that is the end on the side that presses the material to be pressed in the first direction when press working;
a vibrating end, which is an end facing the processing end and to which the vibrator is fixed and to which vibration is applied;
Two concave portions of the same shape are provided on a side surface between the processing end and the excitation end so as to face each other at a predetermined distance in a second direction orthogonal to the first direction. and are formed,
The vibrator is attached to the vibrating end and applies vibration to the vibrating end,
the support member is formed in a shape corresponding to each of the recesses, fits in each of the recesses, and transmits the force in the first direction to the punch ;
A distance in the first direction of a gap between the recess of the punch and the support member fitted in the recess is equal to or greater than the amplitude of vibration applied by the vibrator.
Mold for press working. In the mold for press working according to claim 1,
The vibrator applies a vibration whose amplitude direction is the first direction to the vibrating end. A mold for press working. A press working apparatus comprising the press working die according to claim 1 . In the punch of the die for press working,
a processing end that is the end on the side that presses the material to be pressed in the first direction when press working;
a vibrating end, which is an end facing the processing end and to which vibration is applied;
Two concave portions of the same shape are provided on a side surface between the processing end and the excitation end so as to face each other at a predetermined distance in a second direction orthogonal to the first direction. and are formed and
Each of the two recesses is a support member that fits into the recess, and the distance in the first direction of the gap between the support member that transmits the force in the first direction and the recess corresponds to the vibration edge. is formed to be greater than or equal to the amplitude of the vibration applied to
Punch for stamping die. In the punch of the die for press working according to claim 4 ,
It is a flat imaginary surface extending from the working end to the excitation end, and is formed in a symmetrical shape with respect to the imaginary surface positioned at the same distance from the two recesses. punch. In the punch of the die for press working according to claim 4 ,
A flat imaginary surface perpendicular to the first direction, the imaginary surface having the same distance from the processing end and from the excitation end is formed into a symmetrical outer shape. There is a stamping die punch. In the punch of the die for press working according to claim 4 ,
A flat planar incision that is sandwiched between the two recesses so that the distance from the two recesses is the same, is perpendicular to the second direction and along the first direction, and has opposing side surfaces A punch for a die for press working, further formed with a cut that penetrates and has a length shorter than the length from the working end to the excitation end. In the punch of the die for press working according to claim 4 ,
Each of the two recesses formed in the punch has a linear groove shape whose length direction is a direction orthogonal to the first direction and the second direction. punch. A press working apparatus comprising the punch of the die for press working according to claim 4 .

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