JPH09122780A - Punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the life of a die by reducing the wear of the die without spoiling the working environment. SOLUTION: Only a nozzle being able to spout lubricating oil against a prescribed 1st die working range is switched in the state of spouting based on the revolution position of a striker 59 detected with a revolution position detector 93. Or, when the striker 59 is positioned at the vertically upper position of a 2nd die working range, a controller to control so that, only the nozzle being to spout lubricating oil against the 2nd die working range is switched in the state of spouting is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press such as a turret punch press, and more particularly to a punch press capable of providing necessary and sufficient lubricating action to a die.

[0002]

2. Description of the Related Art A conventional turret punch press capable of imparting a lubricating action to a die will be described below.

An upper turret and a lower turret are vertically opposed to each other on the main body frame. The upper turret is provided with a plurality of upper mold holders at appropriate intervals in the circumferential direction and corresponds to the lower turret. A plurality of lower mold holders vertically facing the upper mold holder are provided at appropriate intervals in the circumferential direction. Here, each upper mold holder includes an upper mold, and each lower mold holder includes a lower mold that vertically opposes a corresponding upper mold. Then, in order to index the predetermined upper mold holder and lower mold holder into the processing area, a turret rotating device for rotating the upper turret and the lower turret is provided at an appropriate position of the main body frame, and the upper turret in the main body frame is also provided. A striker for pressing a predetermined upper die from above is provided at a position above.

A nozzle for injecting lubricating oil from the lower side of the lower mold to the center of the processing region is provided below the lower turret in the main body frame in order to provide a lubricating action to the upper mold and the lower mold. A mold lubrication device is provided. Here, the nozzle is connected to an appropriate switching valve, and is configured to be switchable between an injection state of injecting lubricating oil and a release state of releasing the injection state.

Therefore, the upper turret and the lower turret are rotated by the turret rotating device to index the predetermined upper mold holder and the predetermined lower mold holder into the processing area, and then the predetermined upper mold and the predetermined lower mold. To the central part of the processing area. Further, the work is moved and positioned at a predetermined position between the upper turret and the lower turret. Then, by pressing the predetermined upper mold with a striker from above, the predetermined upper mold and the predetermined lower mold are made to cooperate with each other to perform punching processing (including punching processing and forming processing) on the work. It can be carried out. At this time, by injecting the lubricating oil from the lower direction of the lower mold to the central portion of the processing area by the nozzle, a predetermined upper mold and a predetermined lower mold are lubricated to thereby perform the mold operation. It is possible to reduce wear.

[0006]

The mold holder is provided with a plurality of molds at appropriate intervals in the circumferential direction, and by rotating the mold holder, the mold is revolved so that the directionality (direction) of the mold is improved. ) Can be changed in the punch press,
There are the following problems.

That is, since the position of the mold is changed in the processing area, it is impossible to constantly inject the lubricating oil to the punching mold, and it is impossible to sufficiently reduce the wear of the mold. There's a problem. On the other hand, if the lubricating oil is sprayed over the entire processing area in order to sufficiently reduce the wear of the mold, there is a problem that the working environment is significantly deteriorated due to the unnecessary lubricating oil.

[0008]

In order to solve the above-mentioned conventional problems, in the present invention, as a first means, a rotatable upper mold holder and a rotatable lower mold holder are vertically moved. And a plurality of upper molds provided in the upper mold holder at appropriate intervals in the circumferential direction, and a plurality of lower molds vertically facing the upper mold corresponding to the lower mold holder in the circumferential direction. Provided at appropriate intervals, a plurality of mold processing regions are provided in the circumferential direction around the center of rotation of the mold holder, and in order to index a predetermined upper mold and a predetermined lower mold into a predetermined mold processing region, A holder rotating device for rotating the upper mold holder and the lower mold holder is provided, a striker for pressing a predetermined upper mold from above is provided, and the striker is positioned vertically above a predetermined machining area for the mold. Because of the mold holder A striker revolution device that revolves the striker around the center of revolution is installed, and a revolution position detection device that detects the revolution position of this striker is installed. Providing a mold lubricator equipped with multiple nozzles that can inject,
Each nozzle is configured so that it can be switched between an injection state that injects lubricating oil and a release state that releases this injection state, and based on the revolution position of the striker detected by the revolution position detection device, predetermined die machining It is characterized in that a control device for controlling only the nozzle capable of injecting the lubricating oil to the region is switched to the injecting state.

As a second means, a rotatable upper holder holding member and a rotatable lower holder holding member are vertically opposed to each other, and a plurality of rotatable upper mold holders are circumferentially provided on the upper holder holding member. A plurality of lower mold holders are provided at appropriate intervals, and a plurality of lower mold holders that are rotatable with respect to the lower holder holding member and vertically opposed to the corresponding upper mold holders are provided at appropriate intervals in the circumferential direction, and each upper mold holder has a plurality of upper mold The molds are provided at appropriate intervals in the circumferential direction, and a plurality of lower molds vertically facing the upper mold corresponding to the respective lower mold holders are provided at appropriate intervals in the circumferential direction to provide holder processing areas. Since a plurality of mold working areas are provided in the circumferential direction centering on the center of the holder working area and a predetermined upper mold holder and a predetermined lower mold holder are indexed to the holder working area, the upper holder holder is kept. A holding member rotating device that rotates the member and the lower holder holding member is provided, and after the predetermined upper mold holder and the predetermined lower mold holder are indexed into the holder processing area, the predetermined upper mold and the predetermined lower mold are provided. In order to index the mold into a predetermined mold machining area, a holder rotating device for rotating each upper mold holder and each lower mold holder is provided, and a striker for pressing the predetermined upper mold from above is provided. In order to position the striker vertically above the machining area for a given mold, a striker revolution device that revolves the striker around the region center is provided, and a revolution position detection device that detects the revolution position of this striker is provided. , A die lubrication device equipped with a plurality of nozzles capable of injecting lubricating oil from the lower portion of the lower die to the processing areas for each die, It is configured to be switchable between a jetting state for jetting and a release state for canceling this jetting state, and based on the revolution position of the striker detected by the revolution position detecting device, lubricating oil is applied to the predetermined die machining area. Is provided with a control device for controlling only the nozzles capable of injecting the ink into an injecting state.

As a third means, a rotatable upper holder holding member and a rotatable lower holder holding member are vertically opposed to each other, and a plurality of upper mold holders are circumferentially arranged on the upper holder holding member at appropriate intervals. A plurality of lower mold holders, which are vertically opposed to the upper mold holder corresponding to the lower holder holding member, are provided at appropriate intervals in the circumferential direction, and the plurality of upper mold holders are arranged in the circumferential direction. A suitable number of first upper mold holders and a suitable number of second upper mold holders having an upper mold in the central portion, and a plurality of lower mold holders corresponding to the upper molds. A proper number of first lower mold holders provided with a plurality of lower molds facing each other in the circumferential direction, and a proper number of second molds provided with a lower mold vertically facing the upper mold corresponding to the central portion. It is configured with the lower die holder and a machining area for the holder is provided. In addition, a plurality of first mold processing areas are provided in the circumferential direction around the holder processing area center, and a second mold processing area is provided at the center of the holder processing area. In order to index the die holder and the predetermined lower die holder to the holder processing area, a holding member rotating device for rotating the upper holder holding member and the lower holder holding member is provided, and the predetermined first upper die holder and second After the lower die holder is indexed into the holder working area, the first upper die and the lower lower die are indexed into the first first die working area, so that each first die holder and each first die Providing a holder rotation device that rotates the mold holder,
A striker revolution device for revolving the striker with the center of the region as the center of revolution for providing a striker for pressing a predetermined upper mold from above and positioning the striker at a position vertically above the predetermined first mold machining region. And a revolution position detection device that detects the revolution position of the striker, and horizontally moves the striker between a vertically upper position of the first die machining region and an appropriate vertically upper position of the second die machining region. A striker moving device is provided, and a die lubrication device provided with a plurality of nozzles capable of injecting lubricating oil from the lower die downward to each of the first die machining area and the second die machining area is provided. Each nozzle is configured to be switchable between an injection state that injects lubricating oil and a release state that releases this injection state, and based on the revolution position of the striker detected by the revolution position detection device. , When only the nozzle capable of injecting the lubricating oil to the predetermined first die machining area is switched to the ejection state, or when the striker is positioned vertically above the second die machining area, It is characterized in that a control device is provided for controlling so that only nozzles capable of injecting lubricating oil are switched to an injection state with respect to the processing area for the die.

As a fourth means, in addition to the constituent requirements of any one of the first to third means, the revolution position detecting device has a dog or a sensor operated by the dog integrated with the striker. It is characterized in that a plurality of sensors or a plurality of dogs are provided at positions corresponding to the respective mold working regions in the peripheral portion of the striker.

With the above structure, the upper holder holding member and the lower holder holding member are rotated by the holding member rotating device to index the predetermined upper mold holder and the predetermined lower mold holder into the holder working area. Next, by rotating the predetermined upper mold holder and the predetermined lower mold holder by the holder rotating device to revolve the upper mold and the lower mold, the predetermined upper mold and the predetermined lower mold are formed. The directionality (direction) of a predetermined die (predetermined upper die and predetermined lower die) is determined by indexing to a predetermined die machining area (first die machining area in the third means). ) Is changed. or,
The striker revolving device revolves the striker around the center of the region as a center of revolution and positions the striker at a position vertically above a predetermined machining region for the die. At this time, the revolution position detection device detects the revolution position of the striker (in the third means, the striker is located in a predetermined die machining area),
Based on the revolution position of the striker, only the nozzle capable of injecting the lubricating oil to the predetermined die machining region vertically below the striker is switched to the injection state by the control device.

Before or after performing the predetermined die indexing and the striker positioning, the work is moved and positioned at a predetermined position between the upper holder holding member and the lower holder holding member.

By pressing a predetermined upper mold from above with a striker, a predetermined upper mold and a predetermined lower mold are made to cooperate with each other to perform punching (punching, forming) on the work. (Including). At this time, because only the predetermined nozzle is switched to the injection state,
A necessary and sufficient amount of lubricating oil is sprayed onto a predetermined mold, and wear of the predetermined mold can be reduced.

In the third means, in addition to the above-mentioned function, the upper holder holding member and the lower holder holding member are rotated by the holding member rotating device so that the mold (the upper mold, the lower mold) is moved to the central portion. A predetermined die holder (a predetermined upper die holder, a predetermined lower die holder) provided with a die is indexed into the holder processing area. At this time, the predetermined die is indexed to the second die working area. Further, the striker moving device horizontally moves the striker from a vertically upper position of the first die working area to a vertically upper position of the second die working area. At this time, only the nozzle capable of injecting the lubricating oil to the predetermined second die machining area is switched to the injecting state by the control device.

Then, a predetermined upper die is pressed from above by a striker to punch the work positioned at a predetermined position between the upper holder holding member and the lower holder holding member. At this time, since only the predetermined nozzle is switched to the injection state, necessary and sufficient lubricating oil is injected to the predetermined mold, and the wear of the predetermined mold can be sufficiently reduced.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 5 and 6, a turret punch press (an example of a punch press) 1 according to an embodiment of the present invention is based on a bridge-type main body frame 3. The frame 3 includes an upper frame 5U and a lower frame 5L which are vertically opposed to each other. The lower frame 5 is provided with a work table 7 that supports a plate-shaped work W. The work table 7 is oriented in the front-rear direction (left-right direction in FIGS. 5 and 6) and the left-right direction (in FIG. (Front and back direction, vertical direction in Fig. 6)
Has been stretched to.

The work table 7 is provided with a work positioning device 9 for positioning the work W in the front-back and left-right directions. The work positioning device 9 is provided at the rear end of the work table 7 so as to extend in the left-right direction and to be movable in the front-rear direction, and to the carriage base 11 so as to be movable in the left-right direction. Carrage 1
3 and a work clamper 15 provided on the front side of the carriage 13.

A rectangular upper turret 17U is rotatably provided on the upper frame 5U via a turret shaft 19U, and the lower turret 17U is mounted on the lower frame 5L.
Further, a rectangular lower turret 17L which is vertically opposed is provided rotatably via a turret shaft 19L. In order to rotate the upper turret 17U and the lower turret 17L in synchronization with each other, the turret shafts 19U and 19L are interlocked with a common turret servomotor 21 provided at an appropriate position of the main body frame 3. Here, in order to avoid interference between the lower turret 17L and the work table 7, a notch 23 is provided in the center of the work table 7, and the upper turret 17U and the lower turret 17L are configured in a rectangular shape. It does not matter if it is formed in a circular shape. The upper turret 17U is provided with a plurality of upper mold holders 25U at appropriate intervals in the circumferential direction (in the embodiment of the present invention, a pair of upper mold holders 25U are substantially equal to each other with respect to the turret shaft 19U). The lower turret 17L is provided with a plurality of lower mold holders 25L vertically facing the corresponding lower mold holder 25U at appropriate intervals in the circumferential direction. Each upper mold holder 25U is provided with a plurality of upper molds 27U at appropriate intervals in the circumferential direction, and each lower mold holder 25L has a plurality of lower molds 27L vertically facing the corresponding upper mold 27U. Are provided at appropriate intervals in the circumferential direction. here,
Multiple molds 27U, 27L for mold holders 25U, 25L
In addition to the above, the large molds 27U and 27L may be provided in the central portion, and the molds 27U and 27L may be a die for punching as well as a die for punching.

Referring to FIGS. 7 and 8, a holder processing region 29 is provided at an appropriate position, and the holder processing region 29 has a size corresponding to the die holders 25U and 25L. A plurality of (four according to the embodiment of the present invention) first centers around the center of the holder processing area 29.
The mold processing regions 31a to 31d are provided in the circumferential direction, and the second mold processing region 33 is provided at the center of the holder processing region 29. Here, by driving the turret servomotor 21 to rotate the upper turret 17U and the lower turret 17L in synchronization, a predetermined upper mold holder 25U and a predetermined lower mold holder 25L are indexed into the holder processing area 29. After indexing, the upper turret 17U and the lower turret 17L are non-rotatably rotationally positioned by a known shot pin device (not shown).

After the predetermined upper mold holder 25U and the predetermined lower mold holder 25L are indexed into the holder processing area, the predetermined upper mold 27U and the predetermined lower mold 27 are formed.
L is revolved and a predetermined first die machining area (for example, 31
The turret punch press 1 is provided with a holder rotating device 35 for indexing to b). That is, each mold holder 25
Worm wheels 37U and 37L are non-rotatably provided on U and 25L, respectively.
Are rotatably supported by the corresponding turrets 17U and 17L. Further, a plurality of worms 39U, 39L meshed with the corresponding worm wheels 37U, 37L are rotatably provided on the turrets 17U, 17L via worm shafts 41U, 41R. And the predetermined worm shaft 4
1U and 41R include a holder servo motor 43 provided on the main body frame 3, a belt 45, a pulley 47, and a clutch device 4.
The connection can be cut off via 9U, 49L or the like.

The mold holders 25U and 25L are detachable from the worm wheels 37U and 37L, and the molds 27U and 27L are the mold holders 25U and 25L.
It is configured to be attachable to and detachable from.

Further, referring to FIG. 5, a lower mold holder 25L having a lower mold 27L for molding is constructed so as to be able to move up and down with respect to the worm wheel 37L and not to be dropped. Then, in order to move the lower mold holder 25L up and down with respect to the worm wheel 37L, the lower frame 5
A lifting device 51 is provided at the center of L. That is, a push-up cylinder 53 is provided in the center of the lower frame 5R, and the push-up cylinder 53 has the push-up cylinder 53.
A hollow piston 57 having a contact portion 55 capable of contacting 5L from below is provided so as to be able to move up and down.

With the above structure, by driving the turret servomotor 21 to rotate the upper turret 17U and the lower turret 17L in synchronism, the predetermined upper mold holder 25U and the predetermined lower mold holder 25L are machined for holders. The area 29 is indexed. Next, the upper turret 17U and the lower turret 17 are driven by the operation of the shot pin device.
L is rotationally positioned so as not to rotate, and the clutch devices 49U and 49L are connected to predetermined worm shafts 41U and 41R. Then, the worm wheels 37U, 37L and the worm 3 are driven by the holder servomotor 43.
Combined with the action of 9U and 39L, the specified upper mold holder 2
5U and a predetermined lower mold holder 25L are rotated to revolve a predetermined upper mold 27U and a predetermined lower mold 27L, and index into a predetermined first mold processing region 31b. As a result, the directionality (direction) of the predetermined upper mold 27U and the predetermined lower mold 27L can be changed as shown in FIGS. 7 and 8.

When indexing the molds 27U and 27L provided in the center of the mold holders 25U and 25L to the second mold machining area 33, the turret is not driven by the holder servomotor 43. By driving the servo motor 21 for use, the die holders 25U and 25L are moved to the holder processing area 29.
All you have to do is figure out.

Further, in the case where the molding process (an example of punching process) is performed by the molding dies 27U and 27L,
After the molding dies 27U and 27L are indexed to a predetermined first die machining area 31b (second die machining area 33), the lower die holder 25L is raised by the operation of the push-up cylinder 53. .

Referring to FIGS. 1, 2 and 5, a striker 59 for pressing a predetermined upper die 27U from above is provided above the upper turret 17U, and this striker 59 is a die. It corresponds to the directionality of 27U, 27L, and is configured to be revolvable with the center of the holder processing region 29 as the center of revolution, and the first mold processing region 31a.
It is configured to be movable in the horizontal direction between the vertically upper position of 31d and the vertically upper position of the second die processing region 33.

More specifically, a ram 61 is provided at the center of the upper frame 5U so as to be able to move up and down by the operation of a ram cylinder (not shown), and a casing 63 has a support plate 65 below the ram 61. It is integrally provided through. A rotary sleeve 67 is rotatably provided in the casing 63 via a bearing 69. In order to rotate the rotating sleeve 67, a worm wheel 71 is integrally provided on the lower side of the rotating sleeve 67, and a worm 73 meshing with the worm wheel 71 is rotatably provided at an appropriate position of the casing 63. The worm 73 is linked to a striker servomotor 75 provided at an appropriate position of the casing 63. A U-shaped guide block 77 is provided below the casing 63, and a slider 79 holding a striker 59 is provided on the guide block 77 so as to be movable in the radial direction of the rotary sleeve 67. In order to move the slider 79 in the radial direction, a striker transfer cylinder 83 having a radially movable piston rod 81 is provided at the end of the guide block 77.
1 is connected to the slider 79. The guide block 77 has an elongated hole 85 for supporting the head of the striker 59, and intermediate members 87, 89, 91 are interposed between the support plate 65 and the striker 59.

With the above structure, the striker 59 is moved in the horizontal direction by the operation of the striker transfer cylinder 83 and is positioned at a position eccentric from the center of the rotary sleeve 67. By driving the rotary sleeve 67 by driving the striker servomotor 75, the striker 59 can be revolved and positioned at a vertically upper position of a predetermined first die machining area (for example, 31b). The striker 59 is moved horizontally by the operation of the striker transfer cylinder 83 to move the striker 59.
Can be positioned at the central portion of the above, in other words, at a position vertically above the second mold processing region 33.

A striker 59 is provided at an appropriate position with an appropriate first striker 59.
An orbital position detecting device 93 is provided to detect that the revolving position detecting device is located vertically above the mold processing regions 31a to 31d.
That is, the dog 95 is provided at an appropriate position of the guide block 77. A ring-shaped support bracket 97 is provided in the lower portion of the casing 63, and a proximity switch 99a operated by the dog 95 is provided at a position corresponding to each of the first die machining areas 31a to 31d in the support bracket 97. .About.99d are provided respectively. In addition to using the dog 95 and the plurality of proximity switches 99a to 99d to detect the revolution position of the striker 59, an encoder provided in the striker servomotor 75 may be used.

Referring to FIGS. 3 and 4, inside the piston 57 of the holder pushing-up device 51, the first die working area 31 and the second die working area 31 and the second die working area 31 are formed from the lower side of the lower die 27L.
A plurality of (five in the embodiment of the present invention) nozzles 101a to 10 for injecting lubricating oil onto the die processing region 33.
A ring-shaped die lubrication device 103 including 1e is provided. Here, each nozzle 101 has a switching valve 105a-10a.
It is connected to 5e and can be switched between an injection state of injecting the lubricating oil and a release state of releasing this injection state.

The plurality of nozzles 101a to 101e are connected to a control device 107, and the control device 107 is connected to a plurality of proximity switches 99a to 99d. Here, the control device 107 uses an appropriate proximity switch (for example, 9
Based on the revolution position of the striker 59 detected via 9b), only a nozzle (for example, 101b) capable of injecting lubricating oil to a predetermined first die machining area 31 is switched to an injectable state. And the striker 59 is positioned vertically above the second die machining area 33 (based on the control signal of the transfer cylinder 83), the second die machining area 33 is lubricated with lubricating oil. It is so controlled that only the jettable nozzle 101e is switched to the jettable state.

Next, the operation of the embodiment of the present invention will be described.

By driving the turret servomotor 21, the upper turret 17U and the lower turret 17L are rotated in synchronism with each other to index the predetermined upper mold holder 25U and the predetermined lower mold holder 25L into the holder processing area 29. Next, a predetermined upper mold holder 25U and a predetermined lower mold holder 25 are driven by driving the holder servomotor 43.
By rotating L to revolve the upper mold 27U and the lower mold 27L, the predetermined upper mold 27U and the predetermined lower mold 27L are moved to the predetermined first mold processing area (for example, 3).
1b), the directionality of the predetermined molds 27U and 27L can be changed.

Further, the striker 59 is moved in the horizontal direction by the operation of the striker transfer cylinder 83 so as to be positioned vertically above the appropriate first die machining area. Then, the striker 59 is revolved by the drive of the striker servomotor 75, and the predetermined first die machining area 31 is formed.
Position vertically above b. At this time, a predetermined proximity switch 9 among the plurality of proximity switches 99a to 99d is used.
By the operation of 9b, it is detected that the striker 59 is located at a vertically upper position of the predetermined first die machining area 31b (revolution position of the striker 59), and the controller 107 performs the predetermined first die machining. A predetermined switching valve (for example, 105b) is controlled so that only the nozzle (for example, 101b) capable of injecting the lubricating oil to the region 31b is switched to the injection state.

The work is positioned at a predetermined position between the upper turret 17U and the lower turret 17L before or while the predetermined dies 27U and 27L are indexed and the striker 59 is positioned.

Then, the striker 59 is lowered integrally with the ram 61 and the predetermined upper die 27U is pressed from above, whereby the work can be punched. At this time, since only the predetermined nozzle 101b is switched to the injection state, necessary and sufficient lubricating oil is injected to the predetermined upper mold 27U and the predetermined lower mold 27L.

When punching is performed by the large dies 27U and 27L provided in the central portions of the predetermined die holders 25U and 25L, the turret servomotor 21 is driven to drive the upper turret 17U and the lower turret 17L.
Are rotated in synchronization with each other, and predetermined die holders 25U, 25
L is indexed into the holder processing area 29. At this time, the predetermined concave molds 27U and 27L are processed in the second mold processing region 33.
Is indexed to.

Further, the striker transfer cylinder 83 is operated to move the striker 59 in the horizontal direction to position the striker 59 at a position vertically above the second die machining area 33. At this time, the control device 107 controls the switching valve 105e so as to switch only the nozzle 101e capable of injecting the lubricating oil from the lower direction of the lower die 27L to the second die machining area 33 to the injecting state.

Then, the striker 59 is lowered integrally with the ram 61 and the predetermined large upper die 27U is pressed from above, so that the upper turret 17U and the lower turret 17 are urged.
Punching can be performed on the work positioned between L. At this time, since only the predetermined nozzle 101e is switched to the injection state, necessary and sufficient lubricating oil is injected to the predetermined large molds 27U and 27L.

According to the embodiment of the present invention as described above,
Predetermined mold 27U, 27L is revolved around and predetermined mold 27
Even if the directionality of U and 27L is changed, it is possible to inject the necessary and sufficient lubricating oil to the predetermined dies 27U and 27L, so that the dies 27U and 27L are not harmed in the work environment. Die 27 to reduce wear
The life of U and 27L can be improved.

[0042]

As can be understood from the above description of the embodiments of the present invention, according to the invention described in any one of claims 1 to 4, a predetermined mold is provided. Even if the direction of the predetermined mold is changed by revolving the mold, it is possible to inject a necessary and sufficient amount of lubricating oil to the predetermined mold, so that the work environment can be maintained without damaging the mold. It is possible to reduce wear and improve the life of the mold.

[Brief description of the drawings]

FIG. 1 is a sectional view of an apparatus for driving a striker.

FIG. 2 is a view seen from below in FIG.

FIG. 3 is a diagram showing an arrow III in FIG.

FIG. 4 is a diagram showing a control device.

FIG. 5 is a side view of a turret punch press.

FIG. 6 is an explanatory diagram of a device that drives a turret and a mold holder.

FIG. 7 is an operation explanatory view.

FIG. 8 is an operation explanatory view.

[Explanation of symbols]

 1 Turret Punch Press 17U Upper Turret 17L Lower Turret 25U Upper Mold Holder 25L Lower Mold Holder 29 Holder Processing Area 31a to 31d First Mold Processing Area 33 Second Mold Processing Area 35 Holder Rotating Device 43 Holder Servo motor 59 striker 75 striker servo motor 83 striker transfer cylinder 93 revolution position detection device 99a to 99d die lubrication device 101a to 101e nozzle 107 control device

Claims (4)

[Claims] 1. A rotatable upper mold holder and a rotatable lower mold holder are vertically opposed to each other, and the upper mold holder is provided with a plurality of upper molds at appropriate intervals in the circumferential direction,
A plurality of upper and lower molds facing the lower mold holder are provided with a plurality of lower molds facing each other in the circumferential direction at appropriate intervals, and a plurality of mold processing regions are provided in the circumferential direction around the rotation center of the mold holder. In order to index the predetermined upper mold and the predetermined lower mold into the predetermined mold processing area, a holder rotation device that rotates the upper mold holder and the lower mold holder is provided, and the predetermined upper mold is moved upward. In order to position the striker vertically above the predetermined die machining area, a striker that revolves around the revolution center of the die holder is provided as a striker revolution device. An orbital position detection device that detects the orbital position is provided, and a die lubrication device that is equipped with a plurality of nozzles that can inject lubricating oil from the lower direction of the lower die to each die processing area is provided. , Switchably configured into a release state for releasing the injection state and injection state for injecting lubricating oil,
A control device is provided which controls, based on the revolution position of the striker detected by the revolution position detection device, only the nozzle capable of injecting the lubricating oil to the injection state to the predetermined die machining area. Punch press characterized by. 2. A rotatable upper holder holding member and a rotatable lower holder holding member are vertically opposed to each other, and a plurality of rotatable upper mold holders are provided on the upper holder holding member at appropriate intervals in the circumferential direction. At the same time, a plurality of lower mold holders that are rotatable relative to the lower holder holding member and vertically opposed to the upper mold holder are provided at appropriate intervals in the circumferential direction, and a plurality of upper molds are circumferentially arranged in each upper mold holder. A plurality of lower molds vertically facing the upper mold corresponding to each lower mold holder are provided at appropriate intervals in the circumferential direction.
In addition to providing a holder processing area, a plurality of mold processing areas are provided in the circumferential direction around the holder processing area center, and a predetermined upper mold holder and a predetermined lower mold holder are provided in the holder processing area. In order to index the upper holder holding member and the lower holder holding member, a holding member rotating device for rotating the upper holder holding member and the lower holder holding member are provided. In order to index the mold and the specified lower mold into the specified mold processing area, a holder rotation device that rotates each upper mold holder and each lower mold holder is provided, and the specified upper mold is moved from above. A striker for pressing is provided, and in order to position this striker at a position vertically above a predetermined machining area for a die, a striker that revolves around the center of the area is the revolution center. Equipped with a revolution device for mosquitoes, a revolution position detection device for detecting the revolution position of the striker, and a plurality of nozzles capable of injecting lubricating oil from the lower direction of the lower die to each die machining area. A die lubrication device is provided, and each nozzle is configured to be switchable between an injection state for injecting lubricating oil and a release state for releasing this injection state, and based on the revolution position of the striker detected by the revolution position detection device. A punch press, characterized in that a control device is provided for controlling so that only a nozzle capable of injecting a lubricating oil is switched to an injecting state with respect to the predetermined die processing region. 3. A rotatable upper holder holding member and a rotatable lower holder holding member are vertically opposed to each other, and the upper holder holding member is provided with a plurality of upper mold holders at appropriate intervals in the circumferential direction. An upper die holder corresponding to the holder holding member is provided with a plurality of lower die holders vertically opposed to each other at appropriate intervals in the circumferential direction, and a plurality of upper die holders are equipped with a plurality of upper die in the circumferential direction. A plurality of first upper mold holders and a proper number of second upper mold holders having an upper mold at the center, and a plurality of lower mold holders are vertically opposed to the corresponding upper molds. A proper number of first lower mold holders provided with a plurality of lower molds in the circumferential direction, and a proper number of second lower mold holders provided with a lower mold that vertically opposes the upper mold corresponding to the central portion. And the holder processing area is provided. A plurality of first mold processing areas are provided in the circumferential direction around the area center of the tool processing area, and a second mold processing area is provided at the center of the holder processing area.
In order to index the predetermined upper mold holder and the predetermined lower mold holder to the holder processing area, a holding member rotating device for rotating the upper holder holding member and the lower holder holding member is provided, and the predetermined first upper mold holder And, after indexing the predetermined first lower mold holder to the holder processing region, and then indexing the predetermined upper mold and the predetermined lower mold to the predetermined first mold processing region, each first upper mold A holder rotating device for rotating the holder and each first lower mold holder is provided, and a striker for pressing a predetermined upper mold from above is provided,
In order to position the striker at a vertically upper position of the predetermined machining area for the first mold, a revolution device for a striker that revolves the striker around the center of the region is provided, and a revolution position detection device that detects the revolution position of the striker is provided. A striker moving device that horizontally moves the striker between an appropriate vertical upper position of the first mold processing area and a vertical upper position of the second mold processing area is provided. A die lubrication device having a plurality of nozzles capable of injecting lubricating oil is provided in the first die machining area and the second die machining area, and an ejection state in which each nozzle injects lubricating oil and the ejection state. It is possible to switch to the released state to release, and it is possible to inject the lubricating oil to the predetermined machining area for the first mold based on the revolution position of the striker detected by the revolution position detection device. When only the nozzle is switched to the injection state, or when the striker is positioned vertically above the second die machining area, only the nozzle that can inject the lubricating oil to the second die machining area is ejected. A punch press, characterized in that it is provided with a control device for controlling so as to switch to. 4. The orbital position detecting device is provided with a dog or a sensor operated by the dog integrally with the striker, and the plurality of sensors or the plurality of dogs correspond to a machining area for each mold in a peripheral portion of the striker. The punch press according to any one of claims 1 to 3, wherein the punch press is provided at a position where the punch press is provided.