WO2020070975A1

WO2020070975A1 - Mold structure and press device

Info

Publication number: WO2020070975A1
Application number: PCT/JP2019/031346
Authority: WO
Inventors: 博一坂本
Original assignee: 村田機械株式会社
Priority date: 2018-10-05
Filing date: 2019-08-08
Publication date: 2020-04-09
Also published as: JPWO2020070975A1; JP7131623B2

Abstract

[Problem] To perform desired molding or cutting on a workpiece by way of freely setting the rotational position of the mold that processes the workpiece. [Solution] A mold structure 1 that has a mold 26 and a mold holder H to hold the mold 26 and that is installed on a base 4 of a press device so as to be able to be lifted and lowered, wherein the mold holder H has a first section 40 that accepts the driving force of a lift-axis direction drive unit 17 provided on the press device, and a second section 20 that holds the mold 26 and rotates about the lift axis with respect to the first section 40 due to the rotational drive force of a rotational drive unit 18 provided on the press device.

Description

Mold structure and press device

The present invention relates to a mold structure and a press device.

The press device forms or cuts a workpiece by sandwiching a plate-like workpiece between an upper mold and a lower mold, each of which is a mold structure. In this press apparatus, for example, when beading is performed on a work as one mode, a lower mold having a roller and an upper mold that receives the roller are used as a mold structure. The work is beaded by relatively moving the lower and upper dies and the work while the lower and upper dies hold the work therebetween. As the above-described mold structure, a configuration having a mold that comes into contact with a workpiece and a mold holder that holds the mold is known. In this mold holder, a first portion receiving a driving force at the time of processing a workpiece and a second portion having a die abutting on the workpiece are connected via a bearing, and the second portion is beaded to the first portion. There has been proposed a configuration in which it is rotatable about an axis in a vertical direction in accordance with the angle of the loading process (see Patent Document 1).

Japanese Patent No. 3708175

In the mold structure described in Patent Literature 1, the second portion follows the first portion with respect to the first portion and follows the angle at the time of beading (the relative movement direction between the mold structure and the workpiece) in the vertical direction. Therefore, it is difficult to freely set the rotational position of the second portion of the mold structure, that is, the direction of the mold.

An object of the present invention is to provide a mold and a press device capable of performing a desired forming process or cutting process on a work by freely setting a rotational position of a mold for processing the work. I do.

A mold structure according to an aspect of the present invention has a mold, a mold holder for holding the mold, and a mold structure that is installed to be able to move up and down on a base of a press device, The mold holder has a first portion that receives the driving force of the vertical drive unit provided in the press device, and a first portion that holds the mold and is driven by the rotational driving force of the rotary drive unit provided in the press device. A second portion that rotates about a lifting axis.

The mold may be a roller or a non-circular mold in plan view. The second portion is connected to the mold holding portion that receives the rotational driving force of the rotary driving portion, and is detachably connected to the mold holding portion, and rotates around the elevating shaft integrally with the mold holding portion. And an intermediate portion rotatably connected to the intermediate portion. The mold holding portion and the intermediate portion are connected via a connecting portion, and the connecting portion is provided on one of the mold holding portion and the intermediate portion, and provided on a portion around the elevating shaft in the other. And a connecting portion in which the projection is locked in the groove by rotating the intermediate portion about the elevating shaft with respect to the mold holding portion, and the projection is separated from the groove by the mold. It may be possible to switch to a release state that can be separated from the holding unit. Further, the intermediate portion may include a stopper member capable of restricting rotation with respect to the mold holding portion. Further, the separation of the intermediate portion from the first portion may be restricted by a locking portion provided on the first portion while maintaining a state in which the intermediate portion is rotatable around a vertical axis with respect to the first portion.

A press device according to an aspect of the present invention includes an upper base on which an upper die is installed so as to be able to move up and down, a lower base on which a lower die is installed so as to be able to move up and down, and an upper mold rotating drive that rotates the upper mold around an elevating shaft. Part, a lower die rotation drive unit for rotating the lower die around the elevating shaft, an upper die lowering drive unit for lowering the upper die, a lower die raising drive unit for raising the lower die, a work, an upper die and a lower die And a moving unit that relatively moves the plate-shaped work between the upper die lowered by the upper die lowering driving unit and the lower die raised by the lower die raising driving unit. In a press apparatus that performs predetermined continuous processing in the planar direction of a plate-like work by relatively moving the work and the upper mold and the lower mold, one or both of the upper mold and the lower mold are the molds described above. It is a structure.

A control unit that controls the upper mold rotation drive unit, the lower mold rotation drive unit, the upper mold lowering drive unit, the lower mold rise drive unit, and the moving unit; and an upper mold rotation position detection unit that detects the rotation position of the upper mold. And a lower die rotation position detecting unit that detects the rotational position of the lower die, wherein the control unit detects the upper die and the lower die based on the detection results from the upper die rotation position detector and the lower die rotation position detector. The upper die rotation drive unit and the lower die rotation drive unit may be controlled such that the die rotates in synchronization with the die. Further, the control unit may control the upper mold rotation drive unit and the lower mold rotation drive unit so that the directions of the upper mold and the lower mold are adjusted to the direction of the relative movement.

According to the above-described mold structure and press device, the second portion of the mold structure is held on the base and can be rotated around the vertical axis with respect to the first portion by the rotation drive unit provided on the base. Therefore, the rotational position of the mold provided in the second portion can be freely set. As a result, desired forming (for example, beading) or cutting can be easily performed on the work.

In addition, in a configuration in which the mold is a roller or a non-circular mold in a plan view, the direction of the roller or the non-circular mold can be accurately set by rotating the second portion. The second part is connected to the mold holding part that receives the rotational driving force of the rotation driving part, and is detachably connected to the mold holding part. The second part rotates around the elevating shaft integrally with the mold holding part. In the configuration having an intermediate portion rotatably connected to the intermediate portion, the mold holding portion for holding the mold can be exchanged separately from the intermediate portion, so that the intermediate portion can be diverted while minimizing the exchange portion. can do. In addition, the mold holding portion and the intermediate portion are connected via a connecting portion, and the connecting portion is provided on one of the mold holding portion and the intermediate portion, and a part around the elevating shaft in one of the other. A groove provided in the mold holding part, and by rotating the intermediate part around the elevating shaft with respect to the mold holding part, the connection state in which the protrusion is locked in the groove, and the protrusion is separated from the groove and the intermediate part is removed. In the configuration that can be switched to the release state that can be separated from the mold holding unit, the connection state and the release state can be easily switched by a simple operation such as rotating the intermediate part with respect to the mold holding unit, The mold holding portion and the intermediate portion can be easily connected or disconnected. Further, in the configuration in which the intermediate portion includes the stopper member capable of restricting the rotation with respect to the mold holding portion, the rotation of the mold holding portion with respect to the intermediate portion is regulated, and the intermediate portion is accidentally detached from the mold holding portion. Can be prevented. Further, in a configuration in which the intermediate portion is kept from being rotatable around the elevating shaft with respect to the first portion by the locking portion provided on the first portion, the separation from the first portion is restricted, and the configuration is simple. With this configuration, it is possible to restrict separation of the intermediate portion and the first portion.

Further, in the above-described press device, an upper mold rotation drive unit, a lower mold rotation drive unit, an upper mold lowering drive unit, a lower mold rise drive unit, and a control unit that controls the moving unit, and a rotation position of the upper mold. An upper die rotation position detector for detecting the lower die rotation position detector and a lower die rotation position detector for detecting the lower die rotation position, wherein the control unit detects the detection result from the upper die rotation position detector and the lower die rotation position detector. The configuration for controlling the upper mold rotation drive unit and the lower mold rotation drive unit so that the upper mold and the lower mold rotate in synchronization with each other based on the upper mold rotation position detection unit and the lower mold rotation position detection unit. Since the upper die rotation drive unit and the lower die rotation drive unit are controlled synchronously using the detection result, it is possible to suppress the deviation between the rotation position of the upper die and the rotation position of the lower die. Further, in a configuration in which the control unit controls the upper mold rotation drive unit and the lower mold rotation drive unit so that the directions of the upper mold and the lower mold are adjusted to the direction of the relative movement, the upper mold and the lower mold are oriented in a desired direction. The work can be machined with high accuracy by adjusting the accuracy.

It is sectional drawing which shows an example of the metal mold | die structure concerning this embodiment. It is a figure showing an example at the time of seeing a metallic mold structure from the upper part. It is sectional drawing which shows an example of a roller and a support part. 4A and 4B show an example of a connection portion between a mold holding portion and an intermediate portion, wherein FIG. 4A is a plan view showing a configuration on the mold holding portion side, and FIG. 4B is a plan view showing a configuration on the middle portion side. It is a figure showing the state where the mold holding part and the intermediate part were separated in the second part of the mold structure. It is a figure showing the state where the metallic mold holding part of the 2nd part was attached to the base. It is a figure which shows the state which connects an intermediate part to the metal mold | die holding part of a 2nd part. It is a figure showing the state where the 1st part of a metallic mold structure was moved up. It is a side view showing an example of the press device concerning this embodiment. An example of a case where a work is beaded is shown, in which (A) illustrates a state in which the work is sandwiched between an upper mold and a lower mold, and (B) illustrates a state where the work is relatively moved with respect to the mold structure. It is a figure of a state. It is a figure showing an example which performed beading processing to a work. (A) and (B) are sectional views showing an example of a roller for cutting a work. It is sectional drawing which shows the other example of a roller. It is sectional drawing which shows the other example of a roller. Other examples in the case of beading a work are shown, (A) is a plan view of a non-circular mold, (B) is a side view of a non-circular mold, and (C) is an upper mold and a lower mold. It is a figure of the state moved relatively with respect to. FIGS. 6A and 6B show another example of a case where a work is cut, in which FIG. 6A is a plan view of a non-circular mold, FIG. 6B is a side view of the non-circular mold, and FIG. It is.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments described below. In addition, in order to explain the embodiments, the drawings are appropriately changed in scale, for example, with some portions being enlarged or emphasized. In FIG. 9, directions in the drawing will be described using an XYZ coordinate system. In this XYZ coordinate system, an X direction and a Y direction are set along a horizontal plane, and the X direction and the Y direction are orthogonal to each other. The vertical direction perpendicular to the horizontal plane is the Z direction. In the XYZ coordinate system, a direction indicated by an arrow is defined as a + direction, and a direction opposite to the direction indicated by an arrow is defined as a-direction.

FIG. 1 is a cross-sectional view showing an example of the mold structure 1 according to the present embodiment. The mold structure 1 is applied to a lower mold 5 which is mounted on a lower turret (base, lower base) 4 of a press device 10 described later so as to be vertically movable. The mold structure 1 includes a mold (a roller 26 of the lower mold 5 described later) and a mold holder H that holds the mold. The upper die 3 is mounted on an upper turret (base, upper base) 2 of a press device 10 described later so as to be vertically movable. The mold structure 1 of the present embodiment may be applied to the upper mold 3 as well. The work W can be processed by sandwiching the plate-shaped work W between the upper mold 3 and the lower mold 5 and relatively moving the work W and the upper mold 3 and the lower mold 5. The upper die 3 is mounted so as to be rotatable about a vertical axis. The upper die 3 receives a downward driving force by an upper die lowering driving unit (elevating / lowering axial direction driving unit) 117 (see FIG. 9) provided in the press device 10. Note that the upper die 3 may be configured to rotate around a vertical axis by an upper die rotation drive unit (rotation drive unit) 118 (see FIG. 9) provided in the upper turret 2 (press device 10). . The upper die 3 is provided with a groove 3a into which the roller 26 of the lower die 5 described later and the work W pressed by the roller 26 enter.

金 The mold holder H of the lower mold 5 has a second part 20 and a first part 40 as shown in FIG. The second part 20 has a mold holding part 21 and an intermediate part 22. The mold holding portion 21 and the intermediate portion 22 are detachably connected via a connecting portion 30 described later. The mold holding part 21 and the intermediate part 22 rotate integrally about a vertical axis in a state where they are connected via the connecting part 30. Further, the mold holding portion 21 and the intermediate portion 22 move up and down integrally in the vertical direction in a state where they are connected via the connecting portion 30. By making the mold holding part 21 and the intermediate part 22 detachable, the mold holding part 21 and the intermediate part 22 that hold the roller (die) 26 can be individually exchanged. In the case of damage or the like, by replacing the mold holding portion 21 while leaving the intermediate portion 22, the replacement portion can be minimized.

FIG. 2 is a diagram illustrating an example of the lower mold 5 viewed from above. As shown in FIG. 2, the second portion 20 of the lower die 5 is driven by a lower die rotation driving unit (rotation driving unit) 18 provided in the lower turret 4 (pressing device 10), so that the lower turret 4 is moved. On the other hand, it rotates around the vertical axis. The lower die rotation drive unit 18 includes a drive source 18a, a transmission member 18b, a worm gear 18c, an outer wheel 18d, and an inner wheel 18e.

The drive source 18a is, for example, an electric motor, and rotates the transmission member 18b. The transmission member 18b is, for example, a rod-shaped member, and transmits the driving force from the driving source 18a to the worm gear 18c. The worm gear 18c is fixed to a part of the transmission member 18b, and rotates around a horizontal axis integrally with the transmission member 18b. The outer wheel 18d is cylindrical when viewed from above, and is disposed on the lower turret 4 so as to surround the outer periphery of the second portion 20. The outer wheel 18d is attached to the lower turret 4 so as to be rotatable around a vertical axis.

ギア A gear 18g meshing with the worm gear 18c is provided on the outer periphery of the outer wheel 18d. The outer wheel 18d rotates around a vertical axis with rotation of the worm gear 18c. The inner wheel 18e is arranged inside the outer wheel 18d, and is provided integrally with the outer wheel 18d. The rotation of the outer wheel 18d rotates the inner wheel 18e, and the rotation of the inner wheel 18e causes the second portion 20 to rotate about the vertical axis.

The mold holding unit 21 is disposed above the intermediate unit 22 and held by the lower turret 4, as shown in FIG. The mold holding part 21 is the uppermost part of the lower mold 5. The mold holding unit 21 is inserted from above into the lower turret 4 and can be mounted on the lower turret 4. Therefore, even when the distance between the upper turret 2 and the lower turret 4 is small (see FIG. 9), the mold holding portion 21 can be easily mounted on the lower turret 4. The mold holding part 21 has a support part 24 and an outer member 25. The support part 24 supports the roller 26 rotatably. The roller 26 is supported by the support portion 24 so as to be rotatable about a horizontal axis. The roller 26 presses the lower surface of the plate-shaped work W to form a part of the work W.

FIG. 3 is a cross-sectional view illustrating an example of the roller 26 and the support portion 24. As shown in FIGS. 1 and 3, the roller 26 has a shaft portion 26a along the central axis. The shaft portions 26 a are provided so as to protrude in the horizontal direction from both side surfaces of the roller 26. The support portion 24 rotatably supports the shaft portion 26a via a bearing 24a. The roller 26 is rotatable about a horizontal axis. Further, the roller 26 can freely rotate while pressing a part of the work W.

The outer member 25 is cylindrical when viewed from above, and holds the support 24 inside. The outer member 25 is arranged inside the inner wheel 18e. The outer member 25 has one or more keys 25a protruding outward from the outer periphery. A plurality of keys 25a are provided in the circumferential direction of the outer periphery of the outer member 25, for example, four at equal intervals. However, the present invention is not limited to this mode, and three or less or five or more keys may be provided. May not be equal. Further, the number of keys 25a may be one. Each of the plurality of keys 25a is inserted into a vertical key groove 18f provided on the inner peripheral surface of the inner wheel 18e. When the key 25a is inserted into the key groove 18f, the relative rotation of the outer member 25 with respect to the inner wheel 18e in the up-down direction is regulated, and the outer member 25 is vertically integrated with the outer wheel 18d and the inner wheel 18e. Rotate around an axis.

(1) As shown in FIG. 1, the outer member 25 has a stopper receiving portion 25b on the lower surface. The stopper receiving portion 25b is a concave portion into which an upper end portion 31a of a stopper member 31 described later is inserted. In a state where the upper end portion 31a of the stopper member 31 is inserted into the stopper receiving portion 25b, the rotation of the intermediate portion 22 about the vertical axis with respect to the outer member 25 is locked. The outer member 25 has a cylindrical portion 25c that protrudes downward from a central portion of the lower surface. Two projections 25d protruding outward are provided on the outer peripheral surface of the cylindrical portion 25c. The protrusions 25d are provided one by one at linear positions sandwiching the center of the cylindrical portion 25c when viewed from above.

The intermediate portion 22 can be inserted from below the lower turret 4 and connected to the mold holding portion 21. The intermediate portion 22 includes a first intermediate member 27, a second intermediate member 28, and a third intermediate member 29, as shown in FIG. The first intermediate member 27 has a cylindrical portion 27a, a concave portion 27b provided above the cylindrical portion 27a, and a side projecting portion 27c. The column 27a is formed along the up-down direction. The concave portion 27b is provided downward from the upper surface of the columnar portion 27a, and is formed in a circular shape in plan view. The concave portion 27b is formed in a size that allows the cylindrical portion 25c to be inserted. An annular groove 27d is provided on the inner peripheral surface of the recess 27b. The side protruding portion 27c is provided to protrude radially outward from a side surface of the columnar portion 27a.

FIG. 4 shows an example of a connecting portion between the mold holding portion 21 and the intermediate portion 22. FIG. 4A is a plan view showing the configuration on the mold holding unit 21 side, and FIG. 4B is a plan view showing the configuration on the intermediate unit 22 side. As shown in FIG. 4A, the cylindrical portion 25c of the outer member 25 includes two protrusions 25d that protrude outward in the radial direction. Further, as shown in FIG. 4B, the first intermediate member 27 is provided with a notch 27e communicating from the upper surface to the groove 27d. The notch 27e is provided corresponding to the arrangement of the two protrusions 25d of the tubular portion 25c in plan view.

筒 The tubular portion 25c can be inserted into the recess 27b with the two projections 25d aligned with the cutouts 27e. A state in which the projection 25d enters the groove 27d from the notch 27e by rotating the intermediate part 22 around the vertical axis with respect to the mold holding part 21 from the state where the cylindrical part 25c is inserted into the recess 27b. Becomes When the projection 25d is inserted into the groove 27d, the projection 25d is brought into a connected state in which the projection 25d is locked in the groove 27d. In this connection state, the separation of the intermediate portion 22 from the mold holding portion 21 is regulated, and the mold holding portion 21 and the intermediate portion 22 move up and down integrally.

Also, by rotating the intermediate portion 22 about the vertical axis with respect to the mold holding portion 21 and aligning the projection 25d with the notch 27e, the projection 25d comes off the groove 27d, and the intermediate portion 22 is held in the mold. It becomes a release state that can be separated from the part 21.

As described above, the mold is formed by the cylindrical portion 25c and the protrusion 25d of the outer member 25 (the mold holding portion 21), the concave portion 27b, the groove 27d, and the notch 27e of the first intermediate member 27 (the intermediate portion 22). A connecting portion 30 that connects the holding portion 21 and the intermediate portion 22 is configured. The mold holding portion 21 and the intermediate portion 22 are detachably connected via a connecting portion 30. In addition, by rotating the intermediate part 22 around the vertical axis with respect to the mold holding part 21, the connection state and the released state can be switched. Therefore, the connection state and the release state can be easily switched by a simple operation such as rotating the intermediate portion 22 with respect to the mold holding portion 21, and the mold holding portion 21 and the intermediate portion 22 can be easily connected. Alternatively, the connection can be released.

The connecting portion 30 is not limited to the above-described embodiment. The outer member 25 has a configuration corresponding to the concave portion 27b, the groove portion 27d, and the cutout portion 27e, and the first intermediate member 27 has the tubular portion 25c and the protrusion 25d. May be formed to form the connecting portion 30. Further, the connecting portion 30 described above is not limited to the connecting portion between the mold holding portion 21 and the intermediate portion 22. For example, a connection structure in which a part of the mold holding part 21 and a part of the intermediate part 22 are fixed with fixing screws or the like may be applied.

The intermediate portion 22 includes a stopper member 31 capable of restricting rotation with respect to the mold holding portion 21 as shown in FIG. The stopper member 31 is provided so as to vertically penetrate the side protruding portion 27c of the first intermediate member 27. The stopper member 31 is vertically movable with respect to the side protruding portion 27c. The stopper member 31 has a lever 31b at the lower end. The stopper member 31 is provided with an elastic force upward by an elastic member 31c such as a coil spring. The stopper member 31 is lifted upward by the elastic member 31c, and becomes the rotation regulating position P1 in which the upper end portion 31a is inserted into the stopper receiving portion 25b of the second portion 20.

ストッパ When the stopper member 31 is pressed down while holding the lever 31b, the stopper member 31 moves downward against the elastic force of the elastic member 31c, and the upper end portion 31a becomes the restriction release position P2 separated from the stopper receiving portion 25b. The stopper member 31 is movable between a rotation restriction position P1 and a restriction release position P2.

Rotation restricting position P1 is a position for restricting rotation of intermediate portion 22 with respect to mold holding portion 21. When the stopper member 31 is disposed at the rotation restricting position P1, the upper end 31a enters the stopper receiving portion 25b, and the rotation of the intermediate portion 22 around the vertical axis with respect to the mold holding portion 21 is restricted. . Therefore, the state in which the projection 25d of the connecting portion 30 has entered the groove portion 27d is maintained, and the projection 25d does not move to the notch 27e, and the connected state of the connecting portion 30 is maintained. As a result, it is possible to prevent the intermediate portion 22 from being separated from the mold holding portion 21 carelessly.

規制 The restriction release position P2 is a position for enabling the rotation of the intermediate portion 22 with respect to the mold holding portion 21. Since the stopper member 31 is disposed at the restriction release position P2, the upper end 31a is separated downward from the stopper receiving portion 25b, and the rotation of the intermediate portion 22 around the vertical axis of the mold holding portion 21 is allowed with respect to the mold holding portion 21. Is done. Therefore, by rotating the intermediate portion 22 with respect to the mold holding portion 21, the protrusion 25 d of the connecting portion 30 is moved to the notch portion 27 e, and the intermediate portion 22 is separated downward from the mold holding portion 21. it can.

In addition, it is not limited to using the stopper member 31 as described above. For example, a state in which the rotation of the intermediate portion 22 is restricted with respect to the mold holding portion 21, such as a configuration in which a part of the mold holding portion 21 is sandwiched by a holding member provided in the intermediate portion 22 to restrict the rotation, Any configuration capable of switching to a state in which is allowed can be applied.

The second intermediate member 28 is arranged so as to surround the outer peripheral surface of the first intermediate member 27 as shown in FIG. The second intermediate member 28 has a cylindrical portion 28a and a flange portion 28b. The columnar portion 27a of the first intermediate member 27 is inserted into the cylindrical portion 28a. The cylindrical portion 28a and the columnar portion 27a are relatively movable in the vertical direction. The flange portion 28b is provided so as to project annularly outward in the radial direction of the cylindrical portion 28a.

The flange portion 28b includes an upward protruding portion 28c having a peripheral portion bent upward. The upper protruding portion 28c is provided in an annular shape, and has an upper end portion in contact with a lower end of the inner wheel 18e. The upward movement of the second intermediate member 28 is restricted by the upper protruding portion 28c being in contact with the lower end portion of the inner wheel 18e. The cylindrical portion 28a and the flange portion 28b are provided with an opening (not shown) for disposing the side protruding portion 27c of the first intermediate member 27 and the stopper member 31.

３The third intermediate member 29 is disposed below the first intermediate member 27 and the second intermediate member 28 as shown in FIG. The lower end of the first intermediate member 27 is inserted into the concave portion 29a, and the third intermediate member 29 is integrated with the first intermediate member 27 by a fastening member such as a bolt. Therefore, the first intermediate member 27 and the third intermediate member 29 move in the vertical direction integrally. Further, the third intermediate member 29 includes a convex portion 29b projecting downward and an annular flange portion 29f. The convex portion 29b is inserted into a second concave portion 44 of the first portion 40 described later with a gap between the convex portion 29b and the first portion 40.

バネ A spring member 32 such as a coil spring is disposed between the flange portion 28b of the second intermediate member 28 and the flange portion 29f of the third intermediate member 29. The number of the spring members 32 can be set arbitrarily. Since the upward protrusion 28c of the second intermediate member 28 is in contact with the lower end of the inner wheel 18e to restrict upward movement, the third intermediate member 29 (first intermediate member 27) is a spring member. It can move upward against the elastic force of 32.

The first portion 40 is held by the lower turret 4, as shown in FIG. The first portion 40 receives a driving force directed upward by a lower die ascent drive unit (elevation axial direction drive unit) 17 provided in the press device 10 (press device 10). The first portion 40 has a driving force receiving surface 41 at a lower end. The driving force receiving surface 41 has, for example, a planar shape, and comes into contact with the moving member 17b of the lower die raising drive unit 17 to receive the upward driving force of the lower die raising drive unit 17.

The first portion 40 has an enlarged diameter portion 42 on the upper side. A first concave portion 43 and a second concave portion 44 are provided inside the enlarged diameter portion 42. The second recess 44 is provided at the bottom of the first recess 43. A bearing mechanism 45 is disposed between the bottom of the first recess 43 and the flange 29f of the third intermediate member 29.

The bearing mechanism 45 includes a lower ring member 45a, an upper ring member 45b, and a plurality of ball members 45c. The lower ring member 45 a is annular, and is fixed to the bottom of the first recess 43. The upper ring member 45b is fixed to the flange 29f of the third intermediate member 29. The plurality of ball members 45c are sandwiched and arranged between the lower ring member 45a and the upper ring member 45b. Due to the bearing mechanism 45, the third intermediate member 29 (the intermediate portion 22) and the first portion 40 are relatively rotatable about a vertical axis.

The first portion 40 has a locking portion 46 at the upper end of the side surface forming the first recess 43. The locking portion 46 protrudes inward from the side surface of the first concave portion 43. The locking portion 46 is disposed above the peripheral edge of the flange portion 29f of the third intermediate member 29, and restricts the upward movement of the flange portion 29f with respect to the first portion 40. 43 is prevented. Accordingly, the third intermediate member 29 (intermediate portion 22) and the first portion 40 are separated from each other while maintaining a relatively rotatable state between the third intermediate member 29 (intermediate portion 22) and the first portion 40. Is restricted.

FIGS. 5 to 7 show the process of attaching the lower die 5 to the lower turret 4. FIG. 5 is a view showing a state where the mold holding portion 21 and the intermediate portion 22 are separated from each other in the second portion 20 of the lower die 5. As shown in FIG. 5, the mold holding unit 21 is inserted into the inside wheel 18e from above the lower turret 4. On the other hand, the intermediate portion 22 and the first portion 40 are inserted into the outer wheel 18d from below the lower turret 4. The insertion of the mold holding portion 21 and the insertion of the intermediate portion 22 and the first portion 40 are performed, for example, manually by an operator. In this case, since the lower mold 5 is divided into a plurality of parts, the weight is reduced, and the work load on the operator is reduced.

FIG. 6 is a view showing a state where the mold holding portion 21 of the second portion 20 is mounted on the lower turret 4. As shown in FIG. 6, the mold holding unit 21 inserts one or more keys 25a provided on the outer member 25 into each of the key grooves 18f of the inner wheel 18e (see FIG. 2). 21 is inserted into the inner wheel 18e. As a result, the mold holding unit 21 is mounted on the lower turret 4. Since the vertical dimension of the mold holding portion 21 is smaller than the vertical dimension of the entire lower die 5, it can be easily mounted on the lower turret 4 even when the distance between the upper turret 2 and the lower turret 4 is narrow.

FIG. 7 is a view showing a state where the mold holding portion 21 and the intermediate portion 22 of the second portion 20 are connected. As shown in FIG. 7, the intermediate portion 22 and the first portion 40 are lifted toward the mold holding portion 21 with the mold holding portion 21 mounted on the inner wheel 18e. At this time, the intermediate portion 22 and the first portion 40 are lifted in a state where the projection 25d provided on the cylindrical portion 25c of the outer member 25 is aligned with the notch 27e, and the cylindrical portion 25c is inserted into the concave portion 27b. In addition, the stopper member 31 is in a state where the upper end portion 31a is pressed against the lower surface of the mold holding portion 21, moves downward against the elastic force of the elastic member 31c, and is located at the regulation release position P2.

By rotating the intermediate portion 22 and the first portion 40 about the axis AX with respect to the mold holding portion 21 from this state, the projection 25d of the cylindrical portion 25c enters the groove portion 27d from the notch portion 27e and is connected. The portion 30 (see FIG. 4) is in a connected state where the mold holding portion 21 and the intermediate portion 22 are connected. At a predetermined rotation position of the intermediate portion 22 with respect to the mold holding portion 21, the upper end portion 31a of the stopper member 31 faces the stopper receiving portion 25b provided in the mold holding portion 21. As a result, the stopper member 31 is raised by the elastic force of the elastic member 31c, the upper end portion 31a is inserted into the stopper receiving portion 25b, and the stopper member 31 is located at the rotation restricting position P1.

ストッパ The relative rotation of the mold holding portion 21 and the intermediate portion 22 around the vertical axis is restricted by the stopper member 31. In addition, the operator confirms that the click sound or the lever 31b when the upper end 31a of the stopper member 31 is inserted into the stopper receiving portion 25b when the intermediate portion 22 and the first portion 40 are rotated while being held. By visually recognizing, it can be easily confirmed that the intermediate portion 22 does not rotate, that is, the intermediate portion 22 and the first portion 40 do not drop from the lower turret 4.

When removing the lower die 5 from the lower turret 4, the lever 31b is lowered to lower the stopper member 31 from the rotation restriction position P1 to the restriction release position P2. In this state, the intermediate portion 22 and the first portion 40 are removed from the mold. It is rotated with respect to the holding unit 21. The rotation of the intermediate portion 22 and the first portion 40 causes the protrusion 25d to be disengaged from the groove 27d and positioned in the notch 27e, whereby the connecting portion 30 (see FIG. 4) is released. In this state, the intermediate portion 22 and the first portion 40 can be pulled downward from the lower turret 4. The mold holding part 21 can be pulled out from above the lower turret 4 (the inner wheel 18e) after the middle part 22 and the first part 40 are pulled out.

FIG. 8 is a diagram showing a state where the first portion 40 of the lower mold 5 has been moved upward. As shown in FIG. 8, after the lower die 5 is mounted on the lower turret 4, the moving member 17 b of the lower die raising drive unit 17 provided in the press device 10 contacts the driving force receiving surface 41 of the first portion 40. Touched. When the moving member 17b moves upward by the driving force of the lower die raising drive unit 17, the first part 40 and the second part 20 are raised, and the work W can be formed by the rollers 26 of the die holding unit 21. The force by which the moving member 17b rises is transmitted from the first portion 40 to the third intermediate member 29 and the first intermediate member 27 of the intermediate portion 22 via the bearing mechanism 45, and is transmitted to the roller via the outer member 25 and the support portion 24. 26.

The mold holding portion 21 can form the work W by the key 25a being guided by the key groove 18f and rising, and the roller 26 projecting upward from the inner wheel 18e. When the lower die 5 rises, the second intermediate member 28 of the intermediate portion 22 is in contact with the lower end of the inner wheel 18e and is restricted from moving upward. The interval between the second intermediate member 28 and the spring member 32 is reduced. Therefore, when the moving member 17b descends after stopping the upward driving force of the moving member 17b by the lower die upward driving unit 17, the third intermediate member 29 and the first portion 40 descend by the elastic force of the spring member 32, and the third The mold holding unit 21 descends via the first intermediate member 27 connected to the intermediate member 29. As a result, the roller 26 of the lower die 5 descends, and returns to a state where the work W is not processed as shown in FIG.

In addition, by driving the lower die rotation drive unit 18 provided on the lower turret 4 with the lower die 5 raised (see FIG. 2), the second part 20 of the lower die 5 is moved around the vertical axis. Can be rotated. As a result, at the time of forming the workpiece W, the direction of the roller 26 can be adjusted by driving the lower mold rotation drive unit 18. As a result, desired beading processing can be easily and accurately performed on the work W. The upper die 3 (see FIG. 1) rotates following the direction of the roller 26 in response to the change in the direction of the roller 26. In the configuration in which the upper mold 3 is rotated around the vertical axis by the upper mold rotation drive unit 118 (see FIG. 9), the lower mold 5 and the lower mold 5 are oriented in the same or almost the same direction. The upper mold rotation drive unit 118 is controlled in synchronization with the rotation of the mold 5.

When the lower die 5 is rotated by the lower die rotation drive unit 18, the second part 20 of the lower die 5 rotates, and the first part 40 sandwiching the bearing mechanism 45 is a moving member of the lower die lift drive unit 17. It does not rotate because it is in contact with 17b. That is, since the rotational torque of the pressure contact surface is larger than the rolling resistance torque of the bearing mechanism 45, the moving member 17b and the lower mold 5 do not relatively rotate, and one or both of the lower mold 5 and the moving member 17b are worn. Alternatively, damage can be avoided, and deterioration of the lower mold 5 and the moving member 17b can be suppressed. The lower die 5 can be easily rotated by the lower die rotation drive unit 18 by the bearing mechanism 45 disposed between the second part 20 and the first part 40. The rotation of the two parts 20 can be made smooth.

FIG. 9 is a side view illustrating an example of the press device 10 according to the present embodiment. As shown in FIG. 9, the press device 10 is a turret-type press device (turret punch press) having an upper turret 2 on which an upper die 3 is mounted and a lower turret 4 on which a lower die 5 is mounted. . The press device 10 performs other processing such as, for example, cutting or punching by using another die in addition to performing the forming with the workpiece W sandwiched between the upper die 3 and the lower die 5. be able to. The mold structure 1 of the present embodiment is applied to one or both of the upper mold 3 and the lower mold 5. In the following description, a case where the mold structure 1 of the present embodiment is applied to both the upper mold 3 and the lower mold 5 will be described as an example. When the mold structure 1 of the present embodiment is applied to the upper mold 3, for example, the configuration of the mold structure 1 shown in FIG. That is, in the upper die 3, the first portion 40 is on the upper side, and the second portion 20 is on the lower side.

The upper turret 2 is held on the upper frame 6 via the rotating shaft 7. The lower turret 4 is held on a lower frame 8 via a rotating shaft 9. Each of the upper turret 2 and the lower turret 4 is formed in a disk shape. Each of the upper turret 2 and the lower turret 4 is rotatable around a rotation shaft 7 and a rotation shaft 9 by driving a drive device (not shown) such as a motor. The upper turret 2 and the lower turret 4 are arranged so as to face each other.

The upper die 3 is mounted on the upper turret 2 so as to be vertically movable. The upper mold 3 forms a pair with the lower mold 5. A plurality of upper dies 3 are mounted on the upper turret 2 side by side in a circumferential direction around the rotation shaft 7. The lower die 5 is mounted on the lower turret 4 and is disposed below the upper die 3 (−Z direction). The lower die 5 is vertically movable with respect to the lower turret 4. The lower turret 4 includes a plurality of lower dies 5. A plurality of lower dies 5 are mounted on the lower turret 4 side by side in a circumferential direction around the rotation shaft 9.

(4) Each of the upper turret 2 and the lower turret 4 is rotated by a driving device (not shown), and a pair of the upper die 3 and the lower die 5 to be paired are selected at the press position P. The lower die 5 of the press position P is raised by the lower die raising drive unit 17. In addition, the press device 10 includes an upper mold lowering drive unit 117 that lowers the upper mold 3. The press device 10 arranges the work W at the press position P, drives the lower mold rising drive unit 17 and the upper mold lowering drive unit 117, and sandwiches the work W between the upper mold 3 and the lower mold 5 to perform molding or the like. I do.

The press device 10 includes a lower mold raising drive unit 17, a lower mold rotation driving unit 18, a moving unit 19, an upper mold lowering drive unit 117, an upper mold rotation driving unit 118, and a control unit CONT. The lower mold raising drive unit 17 applies an upward driving force to the first portion 40 of the lower mold 5. The lower die raising drive unit 17 includes a driving source 17a using electric power or hydraulic pressure, and a moving member 17b disposed below the first portion 40 and raised by the driving force of the driving source 17a. The lower mold rotation drive unit 18 is provided on the lower turret 4 and applies a rotational driving force about a vertical axis to the second portion 20 of the lower mold 5. The lower mold rotation drive unit 18 includes a lower mold rotation position detector 18h that detects the rotational position of the lower mold 5. The lower die rotation position detector 18h detects the rotation position of the lower die 5 and outputs a detection result to the control unit CONT. The upper mold lowering drive unit 117 applies a downward driving force to the upper mold 3. The upper mold lowering drive unit 117 is, similarly to the lower mold raising drive unit 17, driven by a drive source (not shown) using electric power or hydraulic pressure, and arranged above the first portion 40 of the upper mold 3 to drive the drive source. And a moving member (not shown) that rises by force. The upper mold rotation drive unit 118 is provided on the upper turret 2 and applies a rotational driving force about the vertical axis to the upper mold 3. As the upper die rotation drive unit 118, a mechanism similar to that of the above-described lower die rotation drive unit 18 may be used, or another mechanism may be used. The upper die rotation drive unit 118 includes an upper die rotation position detection unit 118h that detects the rotation position of the upper die 3. The upper die rotation position detection unit 118h detects the rotation position of the upper die 3 and outputs a detection result to the control unit CONT.

The moving unit 19 relatively moves the upper die 3 and the lower die 5 and the work W. As shown in FIG. 9, a guide 12 is formed on the upper surface of the lower frame 8 along the Y direction, and a movable table 13 that can be moved by a driving device (not shown) is arranged along the guide 12. The movable table 13 is provided with a carriage 14 extending in the X direction. An X-direction guide (not shown) is formed on the carriage 14, and a cross slide 15 that is movable along a drive unit (not shown) along the X-direction guide is provided. The cross slide 15 has two or more work holders 16 spaced apart in the X direction.

That is, the moving unit 19 includes the guide 12, the movable table 13, the carriage 14, the X-direction guide (not shown), the cross slide 15, and the work holder 16. With the work W held by the work holder 16, the processing target portion is positioned at the press position P by the movement in the Y direction by the movable table 13 and the movement in the X direction by the cross slide 15. The work W can be relatively moved by the moving unit 19 with respect to the upper mold 3 and the lower mold 5.

The control unit CONT controls the operations of the lower die raising drive unit 17 and the lower die rotation drive unit 18. The operations of the lower mold rising drive unit 17 and the lower mold rotation drive unit 18 may be performed by an operation by an operator. The control unit CONT controls the lower die rotation drive unit 18 based on the detection result from the lower die rotation position detector 18h, and sets the rotational position of the lower die 5 (the direction of the roller 26). Since the lower die rotation position detector 18h detects the rotation position of the lower die 5, the direction of the roller 26 can be set with high accuracy by the controller CONT. Note that the lower die rotation drive unit 18 does not need to include the lower die rotation position detection unit 18h. In this case, the operator may confirm the rotational position of the lower die 5 by visual inspection or the like, and adjust the rotational position (the direction of the roller 26) of the lower die 5 by appropriately operating the lower die rotation drive unit 18. The control unit CONT controls the operations of the upper die lowering drive unit 117 and the upper die rotation drive unit 118. The operations of the upper mold lowering drive section 117 and the upper mold rotation drive section 118 may be performed by an operation by an operator. The control unit CONT controls the upper mold rotation drive unit 118 based on the detection result from the upper mold rotation position detection unit 118h, and adjusts the rotation position of the upper mold 3 so as to be the same or almost the same as the direction of the lower mold 5. Set. In FIG. 9, a control unit CONT that controls the operations of the upper mold lowering drive unit 117 and the upper mold rotation drive unit 118 and a control unit CONT that controls the operations of the lower mold upward drive unit 17 and the lower mold rotation drive unit 18. And are shown separately. However, as shown in FIG. 9, the present invention is not limited to the configuration including two control units CONT, and the upper die lowering drive unit 117, the upper die rotation driving unit 118, the lower die raising drive unit 17, and the single control unit CONT are used. The operation of the lower die rotation drive unit 18 may be controlled.

FIGS. 10A and 10B show an example of a case where the work W is beaded as an example of the forming process. FIG. 10A is a diagram in which the work W is sandwiched between the upper mold 3 and the lower mold 5, and FIG. FIG. 6 is a view showing a state in which is moved relative to an upper mold 3 and a lower mold 5. First, the rotation position of the second part 20 of the lower die 5 is adjusted in advance by the lower die rotation drive unit 18, and further, the second die 20 of the upper die 3 is adjusted by the upper die rotation drive unit 118 in accordance with the rotation position of the lower die 5. By adjusting the rotational position of the two portions 20, the rotational direction of the roller 26 and the groove 3a is set to a desired direction. In this state, as shown in FIG. 10A, the work W is sandwiched between the upper mold 3 and the lower mold 5 so that a part of the work W is curved upward Wa along the shape of the roller 26. Is formed. Subsequently, as shown in FIG. 10 (B), the roller 26 is rotated by moving the work W relatively to the upper mold 3 and the lower mold 5 by the moving unit 19 of the press device 10. In W, a beading process in which the curved portion Wa is continuous is performed. This beading process is formed continuously in the direction of the roller 26.

At the time of this beading processing, while moving the work W by the moving unit 19, the rotation position of the lower die 5 is changed by the lower die rotation drive unit 18 and the rotation position of the upper die 3 is changed by the upper die rotation drive unit 118. By changing the direction, the directions of the roller 26 and the groove 3a can be changed. FIG. 11 is a diagram illustrating an example in which the work W is subjected to beading processing. As shown in FIG. 11, by changing the direction of the roller 26 and the groove 3 a while moving the work W by the moving unit 19, a continuous curved portion Wa can be formed on the work W. The curved portion Wa shown in FIG. 11 includes a straight line portion and a curved portion in plan view. Thus, by appropriately changing the rotational positions of the upper mold 3 and the lower mold 5 while moving the work W, it is possible to easily and accurately form the curved portion Wa including an arbitrary polarity on the work.

As described above, according to the mold structure 1 and the press device 10 according to the present embodiment, the second portion 20 is vertically moved with respect to the first portion 40 by the rotation drive unit (for example, the lower die rotation drive unit 18). , It is possible to freely set the rotation position of the roller 26 as a mold. As a result, desired beading processing can be easily and accurately performed on the work W. Further, since the second portion 20 is rotatable with respect to the first portion 40, the first portion 40 and the moving member of the vertical driving unit (for example, the moving member 17b of the lower die driving unit 17) are relatively positioned. , The wear or damage of the first portion 40 and the moving member can be suppressed.

In the above-described embodiment, the mold structure 1 in which the workpiece W is subjected to beading by the roller 26 as a mold is described as an example, but the invention is not limited to this embodiment. Each of FIGS. 12 to 14 is a cross-sectional view showing another example of the roller. 12 to 14, the same components as those described above are denoted by the same reference numerals, and description thereof will be omitted or simplified. The mold structure 1 shown in FIG. As shown in FIG. 12A, the upper die 3 includes a roller 103 having a cutting blade 104 as a die. The roller 103 is rotatably supported by the support 103b by the shaft 103a. The lower mold 5 includes a roller 126 having a cutting blade 127 as a mold. The roller 126 is rotatably supported by the support portion 24 by the shaft portion 26a.

切り The cutting blade 104 of the roller 103 in the upper die 3 and the cutting blade 127 of the roller 126 in the lower die 5 face each other. The upper surface of the workpiece W is cut by the cutting blade 104, and the lower surface of the work W is cut by the cutting blade 127. Accordingly, by moving the work W relatively to the upper mold 3 and the lower mold 5, continuous cuts Wb are formed on the upper surface side and the lower surface side of the work W. As a result, the work W can be cut from the cut Wb.

金 In the mold structure 1 shown in FIG. 12B, the work W is cut in the same manner as the mold structure 1 shown in FIG. As shown in FIG. 12B, the upper mold 3 includes a roller 113 having a smooth peripheral surface on which no cutting edge is formed as a mold. The peripheral surface of the roller 113 in the upper die 3 and the cutting blade 127 of the roller 126 in the lower die 5 are in an opposed state. The lower surface of the work W is cut by the cutting blade 127. Accordingly, by moving the work W relatively to the upper mold 3 and the lower mold 5, a continuous cut Wc is formed on the lower surface side of the work W. As a result, the work W can be cut from the cut Wc.

金 The mold structure 1 shown in FIG. 13 performs an offset process on the work W as one of the forming processes. As shown in FIG. 13, the upper mold 3 includes a roller 203 having a small-diameter portion 204, a large-diameter portion 205, and an inclined portion 206 as a mold. The inclined part 206 is formed between the small diameter part 204 and the large diameter part 205. The roller 203 is rotatably supported by the support 103b by the shaft 103a. The lower mold 5 includes a roller 226 having a small diameter part 227, a large diameter part 228, and an inclined part 229 as a mold. The inclined portion 229 is formed between the small diameter portion 227 and the large diameter portion 228. The roller 226 is rotatably supported by the support portion 24 by the shaft portion 26a.

The roller 203 and the roller 226 are in a state where the small diameter portion 204 and the large diameter portion 228 face each other, the large diameter portion 205 and the small diameter portion 227 face each other, and the inclined portion 206 and the inclined portion 229 face each other. . The work W is formed such that a portion sandwiched between the

inclined portions

206 and 229 is inclined. Therefore, by continuously moving the work W with respect to the upper mold 3 and the lower mold 5, a continuous inclined portion Wd is formed in the work W. As a result, the workpiece W is subjected to offset processing in a state where the surface is shifted via the inclined portion Wd.

金 The mold structure 1 shown in FIG. 14 performs deburring (chamfering) on the work W as one of the molding processes. As shown in FIG. 14, the upper mold 3 includes a roller 303 having a wide peripheral surface 304 as a mold. The roller 303 is rotatably supported by the support 103b by the shaft 103a. The lower mold 5 includes a roller 326 having an inclined portion 327 as a mold. The inclined portions 327 are formed at two places between the large diameter portion at the center portion and the small diameter portions on both sides. The roller 326 is rotatably supported by the support part 24 by the shaft part 26a.

(4) The peripheral surface portion 304 of the roller 303 and the inclined portion 327 of the roller 326 are in an opposed state. The work W has a notch We formed therein, and burrs (small projecting pieces) are formed at the end of the notch We. When the end of the cutout portion We is pressed by the inclined portion 327 of the roller 326, the burr is eliminated (chamfered), and the chamfered portion Wf is formed. Therefore, by continuously moving the work W with respect to the upper mold 3 and the lower mold 5, a continuous chamfered portion Wf is formed at an end of the work W. As a result, the work W is subjected to deburring (chamfering) at the end of the notch We.

In the above-described embodiment, the mold structure 1 using a roller as a mold has been described as an example. However, the present invention is not limited to this embodiment. Each of FIGS. 15 and 16 shows an example in which the mold is a non-circular mold in plan view. In FIGS. 15 and 16, the same components as those described above are denoted by the same reference numerals, and the description thereof will be omitted or simplified. 15A and 15B show another example of the case where the workpiece W is subjected to beading processing. FIG. 15A is a plan view of a non-circular mold, FIG. 15B is a side view of the non-circular mold, and FIG. It is a figure of the state moved relatively with respect to a type | mold and a lower type | mold.

下 As shown in FIGS. 15A and 15B, the lower die 5 includes a non-circular projecting die 426 in plan view as a die. The protruding mold 426 is a non-circular mold provided to protrude upward from the upper surface of the support portion 24. As shown in FIG. 15A, the projecting mold 426 has an oval shape in plan view. The protruding mold 426 has a curved surface, and as shown in FIG. 15 (B), has a circular arc shape when viewed from the side. When beading the work W using the lower die 5, first, the work W is sandwiched between the upper die 3 and the lower die 5 in a state where the direction of the protruding die 426 and the direction of the groove 3a are matched.

Subsequently, as shown in FIG. 15C, the workpiece W is relatively moved with respect to the upper mold 3 and the lower mold 5 so that the protruding mold 426 allows the curved portion Wa to be continuously formed on a part of the work W. Beading process is performed. This beading process is formed continuously in the direction of the protruding mold 426. Therefore, by changing the direction of the protruding mold 426 and the groove 3a while moving the work W, for example, a continuous curved portion Wa corresponding to the curved portion Wa in FIG. it can.

16A and 16B show another example of the case where the work W is cut and processed. FIG. 16A is a plan view of a non-circular mold, FIG. 16B is a side view of the non-circular mold, and FIG. FIG. As shown in FIGS. 16A and 16B, the lower die 5 includes a protruding die 526 that is noncircular in plan view as a die. The protruding mold 526 is a non-circular mold provided to protrude upward from the upper surface of the support portion 24, and has a cutting blade 527. As shown in FIG. 16A, the protruding mold 526 has a rhombus shape in plan view. The protruding mold 526 is composed of a plurality of planes, and has a mountain-shaped outer periphery when viewed from the side as shown in FIG.

When cutting the work W using the lower mold 5, first, the work W is sandwiched between the upper mold 3 and the lower mold 5 with the direction of the protruding mold 526 set. The upper mold 3 has a flat portion on the lower surface as a mold. The flat portion 503a of the upper mold 3 and the cutting blade 527 of the protruding mold 526 are in an opposed state. The lower surface of the work W is cut by the cutting blade 527. Accordingly, by moving the work W relatively to the upper mold 3 and the lower mold 5, a continuous cut Wc is formed on the lower surface side of the work W. As a result, the work W can be cut from the cut Wc. In the example shown in FIG. 16, an example is shown in which the upper mold 3 is provided with the flat portion 503 a as a mold, but instead of this configuration, a projecting mold (for example, similar to the projecting mold 526 of the lower mold 5). The upper die 3 having the protruding die) may be used.

Although the embodiments and other examples have been described above, the present invention is not limited to the above description, and various modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, a configuration in which the second portion 20 of the lower die 5 can be separated into the mold holding portion 21 and the intermediate portion 22 is described as an example, but the present invention is not limited to this configuration. For example, the lower mold 5 having the second portion 20 in which the mold holding portion 21 and the intermediate portion 22 are integrally fixed may be used. Even in the case of the lower mold 5, since the second portion 20 can rotate around the vertical axis with respect to the first portion 40, the rotational position of the roller 26 (die) can be set freely, and Desired beading or the like can be easily and accurately performed on W.

In the above-described embodiment, the work W is relatively moved with respect to the mold structure 1 (the upper mold 3 and the lower mold 5) by the moving unit 19 in the press device 10. Not limited. For example, the mold structure 1 may be moved relatively to the work W, or both the work W and the mold structure 1 may be moved to move both.

Note that one or more of the requirements described in the above embodiments and the like may be omitted. Further, the requirements described in the above embodiments and the like can be appropriately combined. In addition, as far as permitted by law, the disclosure of Japanese Patent Application No. 2018-190137 and all documents cited in the above-described embodiments and the like are incorporated herein as a part of the description of the text.

W: Workpiece H: Mold holder CONT: Control unit 1: Mold structure 2: Upper turret (base, upper base)
3 Upper die 4 Lower turret (base, lower base)
5 Lower mold (mold structure)
10 Pressing device 17 Lower die raising drive unit (elevation shaft direction driving unit)
18 Lower rotation drive unit (rotation drive unit)
18h ··· Lower mold rotation position detecting unit 20 ··· Second part 21 ··· Mold holding unit 22 ··· Middle part 30 ··· Connecting part 26 ··· Roller (mold)
31 Stopper member 40 First part 45 Bearing mechanism 46 Locking part 117 Upper die lowering driving unit (elevating axial direction driving unit)
118 ··· Upper die rotation drive unit (rotation drive unit)
118h: Upper die rotational position detector

Claims

A mold, having a mold holder for holding the mold, a mold structure that is installed to be able to move up and down on the base of the press device,
The mold holder includes:
A first portion that receives a driving force of a lifting / lowering axial driving unit provided in the press device;
A second portion that holds the mold and rotates around a vertical axis with respect to the first portion by a rotation driving force of a rotation drive unit provided in the press device.
The mold structure according to claim 1, wherein the mold is a roller or a non-circular mold in plan view.
The second part is
A mold holding unit that receives the rotation driving force of the rotation driving unit;
An intermediate portion which is detachably connected to the mold holding portion, rotates around an elevating shaft integrally with the mold holding portion, and is rotatably connected to the first portion. The mold structure according to claim 2.
The mold holding unit and the intermediate unit are connected via a connecting unit,
The connecting portion has a projection provided on one of the mold holding portion and the intermediate portion, and a groove provided on a part around the elevating shaft on the other,
By rotating the intermediate part around the elevating shaft with respect to the mold holding part, the connection state in which the protrusion is locked in the groove part, and the protrusion is disengaged from the groove part, and the intermediate part is separated by the mold. The mold structure according to claim 3, wherein the mold structure can be switched to a release state that can be separated from the holding portion.
The mold structure according to claim 4, wherein the intermediate portion includes a stopper member capable of restricting rotation with respect to the mold holding portion.
The separation of the intermediate portion from the first portion is regulated by a locking portion provided on the first portion while maintaining a state in which the intermediate portion can rotate around a vertical axis with respect to the first portion. The mold structure according to any one of claims 3 to 5.
An upper base for installing the upper die so that it can be moved up and down,
A lower base on which the lower mold can be set up and down,
An upper mold rotation drive unit that rotates the upper mold about an elevating shaft,
A lower mold rotation drive unit that rotates the lower mold about an elevating shaft,
An upper mold lowering drive unit for lowering the upper mold,
A lower mold raising drive unit for raising the lower mold,
A moving unit that relatively moves the work and the upper mold and the lower mold,
The upper die lowered by the upper die lowering drive unit, and the lower die raised by the lower die raising drive unit sandwiching a plate-like work, the moving unit, the work and the upper die and the In a press device that performs a predetermined continuous processing in a plane direction of the plate-shaped work by relatively moving the lower mold,
A press device, wherein one or both of the upper mold and the lower mold are the mold structure according to any one of claims 1 to 6.
A control unit that controls the upper mold rotation drive unit, the lower mold rotation drive unit, the upper mold lowering drive unit, the lower mold rise drive unit, and the moving unit;
An upper die rotation position detection unit that detects the rotation position of the upper die,
A lower mold rotation position detection unit that detects the rotation position of the lower mold,
The control unit, based on the detection results from the upper die rotation position detection unit and the lower die rotation position detection unit, the upper die rotation drive unit so that the upper die and the lower die rotate synchronously The press device according to claim 7, wherein the press device controls the lower die rotation drive unit.
The press device according to claim 8, wherein the control unit controls the upper mold rotation drive unit and the lower mold rotation drive unit so that the orientations of the upper mold and the lower mold match the direction of the relative movement.