JPH06154910A - Die setting mechanism for press - Google Patents

Abstract

PURPOSE:To facilitate die exchange work by automatically carrying out connection of an electric system, and air system, etc., when dies are set on the press. CONSTITUTION:This press is used by fitting the dies by a free shank system. The dies 10 are slid on a press bed 26 and pressed in up to the specified position, the press and a lower die of the dies are subjected to rugged fitting and in-plane positioning is performed. A die holder 18 is fixed by clampers 30 at the pressed-in position and a shank 24 is engaged with a shank holder 22. The connection of the electric system, etc., between the press and the lower die is carried out by providing a connection to come into contact with a connection provided on the side of the lower die on the press and the connection of the electric system, etc., between the press and an upper die is carried out by pressing a connecting plate 73 provided on the connection at the press side against connecting blocks 82 provided on the upper die.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die setting mechanism in a press machine.

[0002]

2. Description of the Related Art In a press machine used for forming a lead or the like in the manufacture of a semiconductor device, a required die for each product is set in the press machine and processed. Since the mold is manufactured for each individual product, when changing the product type, the mold for that product is used by replacing it with a press machine. This mold is replaced by hand,
Conventionally, a die is placed on a press bed and aligned with a processing position, and then a lower die is clamped and fixed to the press bed by a clamper or screwed to set.

FIG. 11 shows a method of connecting an electric system and an air system of a mold to a press device in a conventional press device. The figure shows a state in which a mold is set on the press bed 2. 3 is a die holder of a mold, 4 is a punch plate, 5
Is the shank of the press machine. Since the mold is electrically controlled and driven by air, it is necessary to connect the electric system of the mold and the air system to the press machine side. For this reason, metal outlets 6 and 7 for connecting the electric system to the die holder 3 and the punch plate 4 are provided, and an air coupler 8 for connecting the lower die and the air system is provided. When connecting the electric system and the air system, the outlet and the coupler are manually attached / detached every time the mold is set.

[0004]

By the way, in recent years, in semiconductor devices, products have become more and more diversified, and the tendency of high-mix low-volume production has been increasing. For this reason, it has become necessary to frequently replace the molds in the processing work using the press device, and as a result, it is required that the molds can be replaced more efficiently when the product types are switched. . Therefore, the present invention has been made in view of these problems, and an object of the present invention is to easily set a mold in a pressing device, and to provide an electric system between the pressing device and the mold. It is an object of the present invention to provide a mold setting mechanism in a press device that can efficiently perform the mold replacement work by automating the connection of the molds.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, a mold setting mechanism in a free shank type press device,
A positioning mechanism that guides and positions the lower die of the die on the press bed to the processing position, and after aligning the shank holder of the upper die with the shank holder of the upper die by aligning with the positioning mechanism, the die A clamper that fixedly supports the lower die of the die on the press bed, and a die set at the processing position on the press bed automatically connects between the die and the press device such as the electric system and the air system. And an automatic connection mechanism for performing the above. Further, the alignment mechanism has a set plate for positioning the mold on the press bed by fitting concave and convex between the front end surface of the lower die on the side of pushing into the press and the press. .
Further, the lower die automatic connection mechanism, the connection portion is provided on the side surface of the set plate in accordance with the arrangement of the connection portion such as the electric system provided on the side surface of the mold, and the side surface of the mold is set on the set plate at the time of setting. It is characterized in that they are in contact with each other to be connected to an electric system or the like. Further, the upper die automatic connection mechanism is provided with a connection block for connecting an electric system or the like on the upper surface of the upper die punch holder, and an electric system or the like is connected to the press device in accordance with the arrangement of the connecting portions of the connection block. A connection plate is provided having connection parts facing each other, and a drive mechanism is provided for pressing the connection plate against the connection block when the mold is set at a predetermined position on the press bed. It is characterized by

[0006]

[Operation] When setting the mold, the mold is pushed into the processing position on the press bed. The lower mold is guided and set to a predetermined position by the alignment mechanism, and the shank of the press device engages with the shank holder of the mold at that position. By setting the mold in place,
The automatic connection mechanism automatically connects the electric system and the like between the die and the press machine. Connection of the electrical system and the like between the lower die and the press device is made by abutting the side surface of the mold to the set plate on the press device side,
The electric system and the like are connected between the upper die and the pressing device by setting the die and then pressing the connecting plate on the pressing device side to the connecting block on the die side by the drive mechanism.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an explanatory view showing the configuration of an embodiment of a mold setting mechanism in a pressing device according to the present invention. In the figure, 10 is a die set in a press machine, and this die 10 has an upper die 12, a punch holder 14 for supporting the upper die 12, a lower die 16 and a die holder 18 for supporting the lower die 16. The upper die 12 and the lower die 16 are the guide posts 2 installed between the punch holder 14 and the die holder 18.
It is guided and supported by 0.

The mold of the embodiment is a free shank type mold in which the shank holder 22 is provided on the upper surface of the punch holder 14. The shank holder 22 has a hook-shaped cross section as shown in the drawing, and is configured to insert the shank 24 from the lateral direction and engage with the vertical press direction so that the shank cannot be removed. When setting the mold, the shank 24 is lowered to the height position of the shank holder 22, and the mold is slid and moved on the press bed to move the shank 24 into the shank holder 22 from the side of the shank holder 22. And then engage each other. According to this method, it is possible to connect the press device and the mold by simply moving the mold and engaging the shank 24 and the shank holder 22.

In FIG. 1, reference numeral 26 is a press bed of the press machine,
28 is a top plate. In the pressing apparatus of the embodiment, the mold is positioned at a predetermined processing position on the press bed 26, and then the clamper 30 automatically fixes and installs the mold at that position. The mold is installed in the processing position by positioning the lower mold. FIG. 2 is a plan view showing a set state of the lower mold. In the figure, reference numeral 40 denotes a set plate fixed at the back position of the press bed, and the mold 10 is set by pushing it toward the set plate 40 from this side until the side surface of the mold comes into contact with the side surface of the set plate 40.

A positioning plate 42 is provided so as to project on a side surface of the mold 10 facing the set plate 40, while a fitting recess 40a into which the positioning plate 42 is inserted is provided in the set plate 40. The fitting recess 40a is recessed and engaged with the positioning plate 42, and the positioning plate 42
The outer side surface of the mold and the inner side surface of the fitting recess 40a are in sliding contact with each other, and the mold 1
Position the left and right positions of 0. The corner of the front end of the positioning plate 42 fits the positioning plate 42 into the recess 4
It is formed in a notch shape to guide and enter the inside of 0a.

FIG. 3 shows a state in which the side face of the mold is abutted against the set plate 40 and is set, as viewed from the side direction.
The state where the positioning plate 42 is set in the fitting recess 40a is shown. Reference numeral 43 is a set claw for locking the mold at the set position. Although the set claw 43 is pivotally supported and rotatable, it cannot rotate above the position where the tip surface of the set claw 43 contacts the inner surface of the positioning plate 42. The leaf spring 44 constantly urges the set pawl 43 clockwise. The setting claw 43 is connected to the drive rod 47 of the air cylinder 46 via the connecting arm 45, and the connecting arm 45 is moved back and forth by driving the air cylinder 46.

When the mold is set on the press bed 26, the mold 10 is pushed in so that the positioning plate 42 can surmount the setting claw 43, and the tip surface of the setting claw 43 contacts the inner surface of the positioning plate 42. At the point of contact, the air cylinder 46 is driven and the die 10 is pulled toward the set plate 40 side while being hooked by the set claw 43 so as to surely abut. The cutout portion 1 is provided on the bottom of the end surface of the die holder 18 to which the positioning plate 42 is attached so that the set claw 43 can contact the inner surface of the positioning plate 42.
8a is provided.

The mold setting mechanism of the embodiment is constructed so that the electric system and the air system are automatically connected when the mold 10 is positioned and set by the press bed 26. FIG. 4 shows the structure of the connection part of the electric system in the lower mold. The electrical system is connected by using the contact probe 50.
That is, the contact probe 50 is installed on the side surface of the set plate 40, and the contact terminal 52 is installed on the side surface of the die holder 18 at a position facing the contact probe 50 on the mold 10 side. Since the probe terminal of the contact probe 50 can be elastically protruded, the mold 10 is moved to the back side on the press bed 26, and the set plate 40 is moved.
The probe terminal is brought into contact with the contact terminal 52 by bringing its side surface into contact with the contact terminal 52 to make an electrical connection.

FIG. 5 shows the structure of the connecting portion of the air system. For connection of the air system, the air flow path 54 on the die 10 side is opened on the side surface of the die holder 18, while the connection plate 55 installed on the set plate 40 is provided with the connection flow path 56 in accordance with the position of the opening. Is going by. An O-ring 57 is installed on the contact surface of the connection flow path 56 with the die holder 18, and when the die holder 18 contacts the set plate 40 and is positioned, the O-ring 57 contacts the side surface of the die holder 18 and the die holder 18. The air between the connection plate 55 and the connection plate 55 is sealed, and the air flow path 54 and the connection flow path 56 are connected to each other. In this way, the mold is set, and the electric system and the air system are connected between the mold and the pressing device. In FIG. 2, the portion A is the connection portion of the electric system, and the portion B is
The part is the connection part of the air system.

Next, the mechanism of the clamper for fixing the lower die of the die to the press bed 26 will be described. FIG. 6 shows a schematic structure of the mechanism of this clamper. The clamper is a U-shaped cam 62 provided in a casing 60 fixed to the press bed 26 so as to be movable in the vertical direction, an air cylinder 64 for pushing the cam 62 in the vertical direction below the cam 62, and a cam 6.
Clamper 6 having on its lower side a roller 66 that engages 2
8 and. The upper part of the clamper 68 is bent into an L shape and the shaft 6
It is pivotally supported by 9. FIG. 7 shows a plan view of the clamper. The clamper 68 is supported by the shaft 69,
It shows that the roller 66 is attached to the side surface of the clamper 68.

The U-shaped cam concave portion provided on the cam 62 is provided so as to be inclined with respect to the moving direction of the cam 62, and the clamper 68 is rotated about the shaft 69 as the cam 62 moves up and down. When the mold is fixed to the press bed 26, the air cylinder 64 raises the cam 62 to the upper position and the clamper 68 is opened to set the mold at a predetermined position. The die holder 18 is lowered and fixed so as to clamp and support the die holder 18 between the clamper 68 and the press bed 26. Clamper 6
8 The lower mold can be strongly fixed by the lever action.

Next, the structure for connecting the upper die of the die to the electric system and the air system of the press machine will be described. Figure 8
Shows an enlarged view of the vicinity of the connection between the upper die and the press machine. The drawing shows a state in which the shank 24 of the press device is engaged with the shank holder 22 and the punch holder 14 and the press are connected to each other. The method of engaging the shank 24 and the shank holder 22 is as described above, and the shank 24 and the shank holder 22 are simultaneously engaged when the mold is positioned and set on the press bed 26. The embodiment shows an example of automatically connecting the air system. A support plate 74 is attached to the shank rod so as to project to both sides of the shank rod, and a support arm 72 having a pipe connection port 70 on the press device side is arranged on both sides of the support plate 74.

LM guides 76 for slidingly guiding the support arm 72 in the vertical direction are provided on the outer surfaces of both ends of the support plate 74, and an air cylinder 78 for raising and lowering the support arm 72 is provided. A connection plate 73 is provided below the support arm 72 so as to face the upper surface of the punch holder 14 and to install the pipe connection port 70. FIG. 9 is a view of the connection plate 73, the shank 24, and the like as viewed from the bottom surface direction.
In the embodiment, each connection plate 73 is provided with four pipe connection ports 70. The pipe connection port 70 is a connection plate 73.
Communicating with the flow path 80 provided in the
Open at the side of 3.

As shown in FIG. 8, an upper connection block 82 is attached to the upper surface of the punch holder 14 at a position facing the pipe connection port 70 attached to the support arm 72. The connection block 82 has a flow path 84 leading to a pipe provided in the upper mold.
Is provided, and the flow path end opens at the end surface of the connection block 82. Since the support arm 72 is vertically driven by the air cylinder 78, after the mold 10 is set at a predetermined position on the press bed, the support arm 72 is lowered to bring the pipe connection port 70 into contact with the connection block 82 and press the press device. An air connection is made between the mold and the upper mold. In an actual device, when the mold is set on the press bed, the upper mold is in the lower position by its own weight. Therefore, the shank 24 and the shank holder 22 are engaged with each other while the shank 24 is previously lowered to the lower position. When the upper mold is raised to a predetermined upper position, the air cylinder 78 is operated to connect the pipes.

FIG. 10 shows an example in which an air system connection and an electric system connection are made between the press device and the upper mold. In this case, the connection plate 73 is provided with a contact probe 86 for electrical connection with the pipe connection port 70, and the connection block 82 on the die side has a flow path 84 for piping and the contact probe 8.
6 is provided with a contact terminal 88 that abuts on the terminal 6. Similar to the above-described embodiment, the connection plate 73 is driven up and down by the air cylinder, and after setting the mold, the support arm 72 is lowered to bring the pipe connection port 70 into contact with the connection block 82 and the contact probe 86 to the contact terminal 88. By making contact, the air piping and electrical connection are made.

When the mold is removed from the press bed, the air cylinder 78 is driven to release the contact between the connection plate 73 and the connection block 82 while the upper mold is in the upper position, and the upper mold is moved to the lower position. After lowering, the entire mold may be pulled out so as to slide to the front side and taken out. In the case of a free shank type mold, there is looseness of about 0.1 mm to 0.3 mm in the mounting portion between the shank and the shank holder, but as in this embodiment, the pipe connection port 70, etc. When connecting by pressing, there is an advantage that even if there is some play, the play can be absorbed and the connection can be made securely.

As described above, according to the mold setting mechanism of this embodiment, when the mold is set in the press device, the mold and the mold can be set by positioning the mold at a predetermined position. Since the electric system and the air system are automatically connected to and from the machine, it is not necessary to attach and detach the connector for connecting the electric system and the air system each time during the mold replacement work, and one-touch operation is possible. It will be possible to do. As a result, there is an advantage that the replacement work can be efficiently performed, and it is possible to easily cope with the production of various kinds.

[0023]

As described above, according to the metal mold setting mechanism in the press device according to the present invention, by simply setting the metal mold at a predetermined position of the press device, the press device such as an electric system and the metal mold can be connected to each other. The connection between them is made automatically, and the work of exchanging the mold can be performed efficiently. As a result, it becomes possible to efficiently carry out switching work of various kinds. In addition, it has a remarkable effect that it can be applied to fully automatic die exchange.

[Brief description of drawings]

FIG. 1 is an explanatory view of a state where a mold is set in a press device.

FIG. 2 is a plan view showing an arrangement of a lower die in a state where a die is set in a press device.

FIG. 3 is an explanatory view showing a state in which a die is set in a press device as seen from a side surface direction.

FIG. 4 is an explanatory diagram showing how the lower die and the electric system of the press machine are connected.

FIG. 5 is an explanatory diagram showing how the lower die and the air system of the press device are connected.

FIG. 6 is an explanatory view showing a mechanism of a clamper for fixing a die to a press bed.

FIG. 7 is a plan view of a clamper.

FIG. 8 is an explanatory diagram showing a state in which an upper die and an air system of a press device are connected to each other.

FIG. 9 is a bottom view of a connection portion between the upper die and the air system of the pressing device.

FIG. 10 is an explanatory view of another embodiment for connecting the electrical connection between the upper die and the pressing device and the air system.

FIG. 11 is an explanatory diagram of a conventional example in which a press device is connected to an electric system of a mold and an air system.

[Explanation of symbols]

 10 Mold 12 Upper Die 14 Punch Plate 16 Lower Die 18 Die Holder 22 Shank Holder 24 Shank 26 Press Bed 30 Clamper 40 Set Plate 40a Fitting Recess 42 Positioning Plate 43 Set Claw 46 Air Cylinder 50 Contact Probe 52 Contact Terminal 54 Air Channel 62 Cam 64 Air Cylinder 68 Clamper 70 Piping Connection 72 Support Arm 73 Connection Plate 74 Support Plate 76 LM Guide 78 Air Cylinder 82 Connection Block

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryosho Todoraga 90 Togami-cho, Tokura-cho, Hanashina-gun, Nagano Inside Yamada Manufacturing Co., Ltd. Sony Corporation (72) Inventor Sumio Hokari 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Inventor Hitoshi Shibue 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Soni -Inside the corporation

Claims (4)

[Claims] 1. A mechanism for setting a die in a free shank type press device, comprising: an alignment mechanism for guiding and aligning a lower die of a die to a processing position on a press bed; and the alignment mechanism. After aligning and engaging the shank of the press device with the shank holder of the upper mold, with respect to the clamper that fixedly supports the lower mold of the mold on the press bed, and the mold set in the processing position on the press bed. A mold setting mechanism in a press device, which is provided with an automatic connection mechanism for automatically connecting between a press device such as an electric system and an air system and a mold. 2. The positioning mechanism has a set plate for positioning the die on the press bed by fitting concave and convex between the front end surface of the lower die on the side of pushing into the press device and the press device. A mold setting mechanism in the press device according to claim 1. 3. The automatic connecting mechanism of the lower die is provided with a connecting portion on the side surface of the set plate according to the arrangement of the connecting portion such as an electric system provided on the side surface of the die, and the side surface of the die is set at the time of setting. The die setting mechanism in the press device according to claim 2, wherein the set system is in contact with the set plate to be connected to an electric system or the like. 4. The automatic connecting mechanism of the upper die is provided with a connecting block for connecting an electric system or the like on the upper surface of the punch holder of the upper die, and the press device is electrically connected to the connecting portion of the connecting block. A connection plate having connection parts such as systems facing each other was provided, and a drive mechanism was provided for pressing the connection plate against the connection block when the mold was set at a predetermined position on the press bed. The mold setting mechanism in the press device according to claim 1, 2 or 3, wherein