JPH0829373B2 - Forging press equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a forging press device capable of feeding and positioning a material during forging by a roller table.

[Prior Art] In recent years, it has been proposed to install a forging press device in a line for rolling or the like in order to eliminate internal defects in the material and improve the quality of the material. An example of this apparatus will be explained with reference to FIG. 6. In the figure, a is a horizontal forging press for forging the material b by moving the dies opposite to each other in the direction orthogonal to the paper surface, and c is the upstream of the horizontal forging press a. Side and downstream side, and grips material b during forging and feeds material b, and 2
It is a manipulator that rotates the material b to forge the other two surfaces after the forging of the surfaces is completed. Manipulator c is stand d
A truck f that can move on a rail e provided above in a direction parallel to the feed direction of the material b, a rod g that is vertically mounted on the truck f, and a material that is attached to the lower end of the rod g to grip the material b. A clamp h for rotating the material b in a vertical plane is provided.

In the above-mentioned apparatus, the material b is grasped by the clamp h of one manipulator c, and while the carriage f is moved along the rail e to the side of the horizontal forging press a, two surfaces of the material b are forged by the die of the horizontal forging press a. ing.

Another example of the conventional apparatus will be described with reference to FIG. 7. In the figure, i is a roller table for conveying a material b, j is a material positioning device, k is a rail m on a pedestal l parallel to the feeding direction of the material b. , A parallelogram link type in which n is an elevating mechanism installed on a trolley k, o is an elevating mechanism n, and can swing in a direction parallel to the feed direction of the material b Is a positioning stopper of.

In such an apparatus, the tip of the material b sent from the roller table i is brought into contact with a positioning stopper o waiting in advance to position the material b, and after positioning, the die of the horizontal forging press a is positioned. Is forging by.

[Problems to be Solved by the Invention] In any of the above devices, it is actually difficult to install the manipulator c or the material positioning device j in the rolling line, and even if it is installed, the entire device is large. Moreover, there is a problem in that it becomes complicated and that it takes time to set and reset the manipulator c and the material positioning device j, resulting in a decrease in productivity.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a forging press device that is compact and simple, and that has good productivity.

[Means for Solving the Problems] The present invention provides a horizontal forging press having a pair of dies facing each other and at least one of which moves, and a horizontal forging press part on the inlet side and the outlet side of the horizontal forging press. A plurality of independently mounted roller tables, and a controller for controlling the roller tables so that the peripheral speeds of the roller tables are synchronized and the driving distances are the same according to the target value of material feeding. There is.

[Operation] When the material is fed during forging, the reference roller table is driven at a predetermined peripheral speed according to the target value of the material feeding, and the other roller tables are synchronously driven in accordance with the roller table, and the predetermined distance is reached. After driving, the roller table stops and the material reaches the target position.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 3 show an embodiment of the present invention, in which 1 is a horizontal forging press provided with a pair of left and right dies 2a and 2b which move forward and backward in opposition to each other by a fluid pressure cylinder. A roller table 4 having a plurality of rollers 3 is disposed on the entrance side of the horizontal forging press 1, and a roller table 6 having a plurality of stepped rollers 5 is disposed at the horizontal forging press 1 part. A roller table 8 having a plurality of rollers 7 is disposed on the exit side of the horizontal forging press 1. The reason why the roller table is divided into three sections of 4, 6 and 8 is to cope with applications such as loading, forging, and unloading of the material M. Thus, the rollers 3, 5, 7 of each roller table 4, 6, 8 can be driven for each group by the electric motors 9, 11, 13 via the speed reducers 10, 12, 14, respectively. There is.

An example of a device for controlling the electric motors 9, 11, 13 of the roller tables 4, 6, 8 is shown in FIG. 4, 15 is an input side electric motor drive circuit for driving the electric motor 9 at a predetermined rotation speed, and 16 is the electric motor 11 Is a central motor drive circuit that drives the motor at a predetermined rotational speed, 17 is an output side electric motor drive circuit that drives the electric motor 13 at a predetermined rotational speed, 18 is a positioning controller that sends a speed signal to the central electric motor drive circuit 16, and 19, 20 are Synchronous controller that sends speed signals to the input and output side motor drive circuits 15 and 17, 2
1 is an arithmetic and control unit, and 22,23,24 are pulse generators connected to the shafts of the electric motors 9,11,13.
The signals detected by 22, 24 can be sent to the input side and output side electric motor drive circuits 15, 17 and the synchronous controllers 19, 20.The signals detected by the pulse generator 23 are the central electric motor drive circuit 16 and The positioning controller 18 and the synchronous controllers 19 and 20 can be sent.

During operation, the arithmetic control unit 21 outputs the feed amount command V ₁ of the stepped roller 5 on the roller table 6 based on the feed target value of the material M, and the positioning controller 18 gives a signal V ₂ to the central motor drive circuit 16. . Therefore, the central electric motor drive circuit 16 drives the electric motor 11 in response to the signal V _2, and the drive of the electric motor 11 causes the reduction gear to be driven.
The stepped roller 5 is rotated via 12 via a predetermined peripheral speed for a predetermined distance, and the material M is fed by the roller table 6. At this time, the rotation speed of the electric motor 11 is the pulse generator.
The pulse generator 23 detects the signal and outputs the signal N ₁ from the pulse generator 23.

The signal N ₁ is fed back to the central electric motor drive circuit 16 and the positioning control 18, and in the central electric motor drive circuit 16, it is compared whether or not the electric motor 11 has a predetermined rotation speed,
The positioning controller 18 obtains the movement amount, and the central motor drive circuit 16 controls the rotation speed of the electric motor 11 so that the movement amount becomes a target value. When the amount of movement of the material M reaches the target value, the speed signal is cut off from the positioning controller 18, and no signal is output from the central motor drive circuit 16, so the motor 11 is stopped. Further, the signal N ₁ is the synchronization controller 19 of the roller table 4 and the roller table 8
It is also sent to the synchronization controller 20 of.

On the input side from the sync controllers 19 and 20 based on the signal N ₁ ,
The signal V ₂ is given to the output side electric motor drive circuits 15 and 17, and the electric motors 9 and 13 are driven by the input side and output side electric motor drive circuits 15 and 17 in response to the signal V ₂ , and the rollers of the roller tables 4 and 8 are driven. 3, 7 are driven by the same distance at the peripheral speed synchronized with the stepped roller 5. Therefore, when the material M is fed by a predetermined amount and the roller table 6 stops, the roller tables 4 and 8 also stop.

When the material M is fed by a predetermined amount, forging is performed by the molds 2a, 2b, and when the molds 2a, 2b retract, the material M advances by a predetermined amount again as described above. The acceleration / deceleration of the electric motors 9, 11, 13 is adjusted so that slippage does not occur between the rollers 3, 5, 7 and the material M.

FIG. 5 shows another example of the device for controlling the roller tables 4, 6, 8 applied to the present invention, in which the positioning controller 18 is connected to the entry side motor drive circuit 15 of the roller table 4,
The sync controller 19 is connected to the central motor drive circuit 16. With such a configuration, the target position is controlled with the roller table 4 as a reference during operation.

In the embodiment of the present invention, the case in which the positioning controller is connected to the central electric motor drive circuit or the input side electric motor drive circuit has been described, but it is also possible to connect the positioning controller to the output side electric motor drive circuit, for each roller table. It is also possible to provide both a positioning controller and a synchronous controller, and switch the switching means by the switching means to select the positioning controller with one roller table and then select the synchronous controller with another roller table. Sometimes they are all synchronized as in the above-mentioned embodiment,
It is also possible to change the combination of roller tables to be synchronized depending on the length of the material and the position of the material, and other various changes can be made without departing from the scope of the present invention,
Of course, etc.

[Effects of the Invention] According to the forging press device of the present invention, since it is not necessary to use a large manipulator or a material positioning device, the device is small and simple, the cost is low, and the material is fed and positioned. Since it can be carried out quickly, various excellent effects such as improved productivity can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the device of the present invention, and FIG.
FIG. 3 is a front view of the horizontal forging press and the stepped roller portion in the apparatus shown in FIG. 3, FIG. 3 is a detailed view of the roller table in the apparatus shown in FIG. 1, and FIG. 4 is an example of a control device used in the apparatus shown in FIG. 5 and 5 are explanatory views of another example of the control device used in the apparatus of FIG. 1, FIG. 6 is an explanatory view of an example of the conventional art, and FIG. 7 is an explanatory view of another example of the conventional art. In the figure, 1 is a horizontal forging press, 2a and 2b are dies, 4,6,8 are roller tables, 9,11,13 are electric motors, 10,12,14 are speed reducers, 15 is an input side electric motor drive circuit, 16 Is a central electric motor drive circuit, 17 is an output electric motor drive circuit, 18 is a positioning controller, 19 and 20 are synchronous controllers, 21 is an arithmetic and control unit, and 22, 23 and 24 are pulse generators.

Claims (1)

[Claims] 1. A horizontal forging press having a pair of dies opposed to each other, at least one of which moves, and a horizontal forging press, which is arranged on the inlet and outlet sides of the horizontal forging press, respectively, and is driven independently. A forging press apparatus comprising: a plurality of possible roller tables; and a control device that controls so that the peripheral speeds of the roller tables are synchronized and the driving distances are the same according to the target value of material feeding.