JPH06154915A - Material transferring device for machine tool - Google Patents

Abstract

PURPOSE:To sufficiently reduce the manufacturing cost of the device and to attain a spread price accepted extensively in the industry by fitting integrally a transfer mechanism of a work for a die set fitted with dies. CONSTITUTION:In this transferring device 10, a main body part 20 made of a metal plate having the necessary thickness is fitted on the rear side of the die set 12 fitted with the dies. A transfer part 18 pressurized by a first cylinder 22 and an elevating and lowering plate 26 to move vertically by a second cylinder 30 and a suction part 28 which is connected to a third cylinder 32 and carries out horizontal motion are arranged, respectively on this main body part 20. This main body part 20 is then fitted on a press, etc., along with the die set 12, the work punched and formed by the press is sucked on the suction part 28 and this is transferred in order for the adjacent dies.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material transfer device, and more particularly to a material transfer device for sequentially transferring materials punched and bent by a press machine to adjacent dies. Is.

[0002]

2. Description of the Related Art In a material processing apparatus, there is known a press working machine in which dies are arranged opposite to each other above and below a pressed portion and, for example, thin sheet metal is continuously supplied and worked between them.
This press working machine includes, for example, a so-called wide bed type machine in which a plurality of the molds are adjacent to each other on a die set and punching and bending can be simultaneously performed by one press. This wide bed type press machine is mainly used for high-mix low-volume production. Every time the press operation is performed, workpieces are sequentially transferred to the adjacent dies to produce one product. I'm supposed to get it. Since the transfer of this work has been performed by a worker until now, the work efficiency is extremely poor and the worker is also dangerous. Therefore, improvement of this work environment is desired. It was

On the other hand, a so-called transfer device for automatically transferring this work has been proposed. This device is constructed so that it can be retrofitted to an existing press machine, and is often suitably used in the above-mentioned wide bed type press machine or the like. That is, in the transfer device 44, as shown in FIG. 10, a plurality of (in some cases, a single unit) arms 46 set to have a required length are horizontally arranged above the device body. A vacuum suction cup 48 is attached to the tip of each arm 46.
Alternatively, an electromagnet or the like is selectively arranged according to the specifications, and each work on the die is attracted. The device 44 is inserted and arranged from the back side (or front side) of the press machine so that the tip of the arm 46 faces between the upper die and the lower die. Therefore, the arm 46, in this state, interlocks with the press operation of the press working machine, and at the same time, sucks the workpieces on the respective molds under the control of the apparatus main body, and along the alignment direction of the molds. It is configured to move horizontally.

[0004]

According to the transfer device 44, each pressed work is automatically transferred to the adjacent die. For this reason, there is a great advantage that the complicated work which has been manually performed can be solved and the safety of the worker can be secured. However, as described above, this type of transfer device has the arm 46 for transferring the work.
Must be inserted from the outside of the frame in the press working machine, so that the entire arm inevitably becomes long, and the mechanism for operating the arm 46 becomes complicated, so that the size is generally increased. There is a drawback. Further, the arm 46 is generally limited to a two-dimensional operation of vertical movement for a work and horizontal movement for transferring the work. Therefore, the tip portion of the arm 46 is set at the midpoint between the adjacent dies, and the work is transferred by the vertical movement and horizontal movement from this position. Along with this, the respective dies are mounted and fixed on the die set with a space provided by the space in which the arm 46 is interposed. As a result, the number of dies to be installed is reduced and the feed pitch of the work is increased by the amount of the space provided, which inevitably leads to a reduction in the number of processing steps and a fixed number of steps.

Further, as mentioned above, it is pointed out that the manufacturing cost of the apparatus itself becomes extremely high as the size of the apparatus itself increases. For this reason, especially in a small-scale machining factory or a town factory that mainly introduces machine tools such as presses, etc., in general, install these devices from the viewpoint of securing the installation space of the devices and funding. Is often extremely difficult. Therefore, in these factories, it is the current situation that dangerous work is forced without effective countermeasures against the above problems. Further, there is a transfer device that is integrally mounted on the press machine side, but since it is generally large in size like the transfer device, even if it is necessary to attach and detach it, it takes a lot of time and time for the work itself. It has the drawback of requiring labor.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks inherent in the material transfer device for machine tools, the present invention has been proposed to suitably solve the above-mentioned drawbacks, and to a die set for mounting a die. On the other hand, it is an object of the present invention to provide a material transfer device which can reduce the manufacturing cost of the device sufficiently by integrally mounting a work transfer mechanism and can achieve a popular price widely accepted in the industrial world. .

[0007]

In order to overcome the above-mentioned problems and achieve the intended purpose, the present invention adsorbs each material punched by press working or the like and adsorbs each material to an adjacent lower die. What is claimed is: 1. A material transfer device for a machine tool, comprising a part for sequentially transferring at a predetermined pitch and a main body part for movably supporting the transfer part, wherein the main body part on which the transfer part is arranged is Characterized by being fixed to one side of the die set to which the mold is attached

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A material transfer device for a machine tool according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments. FIG. 1 shows a material transfer device 1 according to the present invention.
0 is a plan view and FIG. 2 is a side view showing the material transfer device 10. The material transfer device (hereinafter, referred to as a transfer device) 10 will be described by way of an example in which it is attached to a wide bed type press machine 42 as shown in FIG. Not limited to this, it can be suitably used for a machine tool that sequentially transfers materials at a predetermined pitch.

In this transfer device 10, a work (not shown) processed by a lower mold 14 and an upper mold 16 which are attached to a die set 12 at a required interval and are attached to a lower mold 14 adjacent to each other. It is mainly composed of a mechanism for sequentially transferring (hereinafter referred to as a transfer section) 18 and a main body section 20 in which the transfer section 18 is arranged. As shown in FIG.
One end in the longitudinal direction of 0 is fixed to the back side (or front side) of the die set 12. That is, the main body portion 20 is constructed by using a plate material having a required thickness as a base, and a trapezoidal leg portion 20a is attached to the lower end surface thereof. Therefore, the body portion 20 is
a part of the front end face and the lower end face of
Is attached so as to be in contact with the back side of the.

At the center of the upper surface of the main body portion 20, as shown in FIG. 1, a first portion is formed along the longitudinal direction of the main body portion 20.
A cylinder 22 is attached. This cylinder 22
Is for bringing the entire transfer section 18 described later close to the molds 14 and 16, and is operated by opening and closing an electromagnetic valve 23 also attached to the upper surface of the main body section 20. The electromagnetic valve 23 is connected to a power source via a control panel (not shown) provided separately from the main body 20.

The transfer section 18 is disposed on the upper side of the main body 20 to which the die set 12 is fixed. That is, as shown in FIGS. 2 and 3, the transfer unit 18 includes a base 24 that is pressed by the first cylinder 22 attached to the main body 20 and a lift plate 26 that moves up and down with respect to the base 24. And an adsorbing portion 28 that slides horizontally on the upper surface of the elevating plate 26. A second cylinder 30 is vertically arranged in the center of the back surface of the base 24, and the tip of the rod is fixed to the center of the bottom surface of the lift plate 26. Further, in the vicinity of both ends of the base 24 sandwiching the second cylinder 30,
An elevating bar 31 attached to the bottom surface of the elevating plate 26 is inserted and arranged. Therefore, the elevating plate 26 is
When the cylinder 30 is urged, the lifting bar 3
You will be guided to 1.

As shown in FIG. 1, a third cylinder 32 which moves along two horizontal bars arranged in parallel is arranged on the upper surface of the elevating plate 26, and the third cylinder 32 is provided. The suction portion 28 is disposed via a connection plate 34 attached to the upper surface of the. That is, the suction unit 28 is
The die set 1 is provided on the bottom surface of the front end portion of the connection plate 34.
2, a long mounting plate 36 mounted in the longitudinal direction, and extending in a right angle (or a required angle) direction from the mounting plate 36,
The suction plate 38 is attached so as to face the upper surface of the lower mold 14. As shown in the drawing, for example, five suction plates 38 are attached at positions separated by a predetermined distance, and a vacuum suction pad 40 is arranged on the bottom surface thereof. The suction pad 40 is sucked and released by opening and closing the electromagnetic valve 23 provided on the upper surface of the main body 20. The suction pad 40 is
It is not limited to this vacuum type, but other than this, for example, an electromagnet or the like is also suitably used.

[0013]

Next, the operation of the material transfer device according to the embodiment thus constructed will be described. This transfer device 1
For 0, the transfer speed of the work can be switched between two kinds of so-called high speed and low speed by changing the transfer operation by changing the switch arranged on the control panel (not shown). The high-speed processing in this transfer operation is substantially the same as the operation generally performed in this type of transfer device. Therefore, the operation of high-speed processing in the transfer device according to this embodiment will be described first.

That is, in this high-speed processing, as shown in FIG. 5, the transfer portion 18 is pressed toward the lower mold 14 and the upper mold 16 by the urging of the first cylinder 22 provided in the main body 20. To be done. As shown in FIG. 3, the suction portion 28 has the suction plate 38 attached to the tip thereof located at an intermediate point of the lower mold 14 set on the die set 12. Further, the elevating plate 26 uses the position raised by the second cylinder 30 as the base point of the operation. In this state, as shown in FIG. 6, the lower die 14 located at the left end is supplied with material from the front side to the back side in the figure, and the press operation is performed in conjunction with this, thereby performing a pressing operation. The edge of the plate material is cut to obtain a first work piece. Then, when the upper die 16 reaches the top dead center, the suction portion 28 is biased by the third cylinder 32 to move to the left side, and
The suction pad 40 is stopped at a position where it reaches vertically above the lower mold 14.

Then, the suction part 28 descends together with the lifting plate 26 as shown in FIG. 7 by the reverse bias of the second cylinder 30 arranged on the base 24, and the suction pad 40.
Contacts the first work piece. The suction pad 40 is opened by opening the electromagnetic valve 23 provided in the main body unit 20 in synchronization with the lowering timing of the lift plate 26.
The first work piece is adsorbed on. Then, the adsorption unit 28 is
As shown in FIG. 8, after the first work piece is sucked up, the work piece is moved up and moved rightward by a predetermined pitch, and then descends again toward the lower mold 14 to stop suction. As a result, the work piece is placed on the lower mold 14 to be subjected to the next processing. The moving distance of the suction portion 28 is set to a length such that each suction pad 40 reaches vertically above each lower mold 14.

The suction part 28 in which the first work piece is released
Moves up in the direction opposite to the transfer direction once it rises with respect to the lower mold 14, and as shown by an imaginary line in FIG. 8, the suction plate 38 is located at an intermediate point where the lower molds 14 are separated from each other. Will stop at the position where came. That is, in this high-speed processing, the separation width of the lower mold 14 is fixed at a position slightly larger than the width dimension of the suction plate 38. Therefore, in this case, both molds 14 and 16 are configured to perform the pressing operation without interfering with the suction plate 38. Further, with the movement of the suction portion 28, the lower mold 1 located at the left end
4, the plate material is supplied. By lowering and pressing the upper mold 16 in this state, the first work piece is subjected to the following processing, and the second work piece is obtained on the lower mold 14 on the left side. Then, the suction part 28 arrives on the lower mold 14 and descends toward the first work piece and the second work piece for suction, and then is transferred to the adjacent lower mold 14. By repeating this operation in sequence, the work as the final product can be obtained from the lower mold 14 at the right end.

Next, the operation of low-speed processing performed by switching the switch will be described. In the case of this low-speed processing, the same operation is performed until the transfer and release of the first work piece in the above-described high-speed processing. After that, the suction part 28 having released the work piece is lifted from the lower mold 14 and is moved to the rear of the main body part 20 together with the elevating plate 26 as shown in FIG. Accordingly, the suction plate 38 of the suction unit 28
However, it retreats to a position where it does not interfere with the pressing operation of the upper mold 16 and the lower mold 14.

That is, in this low speed processing, an operation of retracting the suction plate 38 is added every time one press working is performed. Therefore, the speed of press working itself is
Although slightly slower than during high-speed processing, it is not necessary to provide a space for retracting the suction plate 38 between the adjacent lower molds 14 as in the case of high-speed processing. Therefore, the lower die 14 can be increased in number by increasing the number of the lower die 14 on the die set 12 as much as the gap can be reduced. Further, by adding the lower mold 14, it is possible to perform processing with higher versatility.

[0019]

As described above, the material transfer device according to the present invention is integrally attached to the die set used for press working. As a result, the mechanism of the transfer device is extremely simplified and made compact, and as a result, the manufacturing cost itself can be kept low, and the like.

[Brief description of drawings]

FIG. 1 is a plan view showing a material transfer device in a machine tool according to a preferred embodiment of the present invention.

FIG. 2 is a side view showing a material transfer device according to the present invention.

FIG. 3 is a front view showing a material transfer device according to the present invention.

FIG. 4 is a perspective view showing a state in which the material transfer device according to the present invention is attached to a press machine.

FIG. 5 is a front view showing a state where the transfer section of the material transfer apparatus according to the present invention is raised with respect to the main body section.

FIG. 6 is a side view showing a state where the transfer section of the material transfer device according to the present invention is pressed in the mold direction.

FIG. 7 is a front view showing a state in which the transfer section of the material transfer apparatus according to the present invention is lowered to adsorb the work on the lower die.

FIG. 8 is an elevation view of the transfer section of the material transfer device according to the present invention;
It is a front view showing a state where a work is transferred to an adjacent lower die.

FIG. 9 is a front view showing a state where the transfer section of the material transfer device according to the present invention is moved in a direction away from the mold.

FIG. 10 is a schematic perspective view showing a transfer device according to a conventional technique.

[Explanation of symbols]

 10 Material Transfer Device 12 Die Set 14 Lower Mold 18 Transfer Section 20 Main Body

Claims (1)

[Claims] 1. A portion (18) for adsorbing each material punched by press working or the like and sequentially transferring the material to an adjacent lower die (14) at a predetermined pitch, and the transfer portion (1).
A material transfer device (10) for a machine tool comprising a main body (20) that movably supports 8), wherein the main body (20) in which the transfer portion (18) is arranged is A material transfer device for a machine tool, wherein the material is fixed to one side of a die set (12) to which the lower mold (14) is attached.