KR20100010575A

KR20100010575A - Forging apparatus

Info

Publication number: KR20100010575A
Application number: KR1020080071497A
Authority: KR
Inventors: 김기범
Original assignee: 김기범
Priority date: 2008-07-23
Filing date: 2008-07-23
Publication date: 2010-02-02

Abstract

The present invention measures the heating temperature of the workpiece to be forged by means of a temperature sensor installed on the bottom of the ram to reduce the defective rate of the product to be forged by reducing the workpiece temperature is lower than the set temperature to heat again. It provides a forged device.

According to an embodiment of the present invention, at least one or more temperature sensors are installed on a bottom surface of a ram, and the temperature sensors output a signal to a controller by measuring a heating temperature of the workpiece in a state close to the workpiece according to the operation of the ram. The control unit controls the driving unit to operate the RAM through a signal output from the temperature sensor.

Description

Forging device with temperature sensor {Forging Apparatus}

The present invention relates to a forging apparatus, and more particularly, by installing a temperature sensor on the bottom surface of a ram forging a workpiece, measuring a heating temperature of a workpiece to be forged, and then heating the workpiece below a set temperature to heat the workpiece again. It relates to a forging device having a temperature sensor to reduce the defective rate of the product to be forged.

As is well known, forging refers to a method of metal processing in which a material is formed into a desired shape by applying a compressive load by a mechanical method. In the forging method, a material is placed between flat tools, and is rotated or rotated properly. It is divided into free forging to make the product of the desired shape, and mold forging to make the product of the desired shape by sandwiching the material between the molds in a certain shape.

The forging machine used for electronic free forging includes a moving table on which a workpiece heated to a certain temperature is placed, a ram located on the moving table, and a ram equipped with a tool such as a hammer, and driving the ram up and down. It consists of a drive unit to make up, down and reciprocating movement of the ram, hammering the workpiece on which the tools such as hammers are placed on the moving table, increasing the rigidity of the workpiece and making the structure uniform, and then molding it into a product having a certain shape. do.

On the other hand, the heating temperature of the workpiece to be forged in the state of being placed on the moving table should be maintained between 1230 ℃ ~ 1280 ℃, less deformation resistance to give a large deformation with a small force can be easily molded, By adding the effect, it is possible to enhance and improve the material, and to form a complicated shape more easily.

However, the heating temperature of the workpiece sometimes drops during the process of transferring the workpiece or forging the placed workpiece several times to settle the workpiece on the moving table. Thus, the heating temperature of the workpiece is lower than the appropriate temperature. If the forging operation is carried out in the state of falling off, it causes a serious failure rate such as cracking in the molding.

Therefore, the forging apparatus is urgently required for measuring means capable of measuring the heating temperature of the workpiece in real time in addition to the ram and the moving table.

Accordingly, a technical problem to be achieved by the present invention is to provide a forging device having a temperature sensor installed on the bottom surface of the ram constituting the forging device to measure the heating temperature of the workpiece to be forged in the state of being placed on a moving table. In providing.

Another technical problem to be achieved by the present invention is to provide a forging device having a temperature sensor to reduce the defective rate of the product to be forged by again heating the workpiece below the set temperature by measuring the heating temperature.

The present invention for achieving the above object is a moving table in which a workpiece heated to a predetermined temperature is placed, and the moving table is positioned at a predetermined distance away from the moving table and moved vertically in accordance with the driving of the drive unit, the bottom surface In the forging device comprising a ram for forging the workpiece placed on the moving table by using a tool installed in the moving table, at least one temperature sensor is installed on the bottom surface of the ram, the temperature sensors are the According to the operation to measure the heating temperature of the workpiece in the state close to the workpiece to output a signal to the control unit, the control unit to control the drive unit for operating the ram through the signal output from the temperature sensor do.

The forging device with a temperature sensor according to the present invention measures the heating temperature of a workpiece to be forged while being placed on a moving table by installing a temperature sensor on a bottom surface of a ram forging a workpiece to fall below a set temperature. As the workpiece is heated again, it prevents the workpiece from cracking due to the temperature drop during the forging process, thereby reducing the defective rate of the forging product, thereby realizing the effect of improving the quality.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described. In the following description will be presented a representative embodiment in the present invention to achieve the above technical problem. And other embodiments that can be presented with the present invention are replaced by the description in the configuration of the present invention.

In the present invention, the temperature sensor is installed on the bottom surface of the ram to move up and down by the power of the driving unit and to form the workpiece placed on the moving table to measure the heating temperature of the workpiece in the forging molding, heating the workpiece When the temperature falls below the set temperature to output a signal to the control unit to provide a forging device with a temperature sensor to stop the operation of the power supply to cut off the power supply of the power supply to the drive unit.

The forging device equipped with such a temperature sensor stops the driving of the ram when the heating temperature of the workpiece falls below an appropriate temperature so that the workpiece is heated again so that the workpiece does not crack due to the temperature drop during the forging process. The defect rate can be reduced to improve quality.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 and 2 are views showing the configuration of a forging apparatus with a temperature sensor according to an embodiment of the present invention.

As shown, the forging device of the present invention comprises a moving table 10, the ram 20 and the temperature sensor 40 to move up and down by the power of the drive unit 30.

The moving table 10 is a place where the workpiece is heated material, the moving table 10 is preferably configured to rotate by the power of a drive motor (not shown) installed on the bottom surface.

The ram 20 is located above the moving table 10, and a tool such as a hammer is mounted on the bottom surface thereof, and the drive unit 30 is connected to the driving unit 30 and the piston rod 25 on the upper surface thereof. In accordance with the driving of the) to move vertically and vertically forging the workpiece placed on the moving table (10).

On the other hand, the temperature sensor 40 is mounted on both sides of the bottom surface of the ram 20, the temperature sensor 40, the ram 20 is lowered and the workpiece placed on the moving table 10 When forging molding, after measuring the heating temperature of the workpiece in the state close to the workpiece, when the heating temperature of the workpiece falls below the temperature set in the temperature sensor 40, preferably 1230 ℃ or less, the control unit ( 50) to output the signal.

That is, in the forging operation, the heating temperature of the workpiece should be maintained at 1230 ℃ or more, preferably 1230 ℃ ~ 1280 ℃, less deformation resistance to give a large deformation with a small force to facilitate the molding, In addition, it is possible to improve and improve the material, and to easily form a complex shape, while if the heating temperature of the workpiece falls below 1230 ℃, cracks may occur in the workpiece during the forging process may cause a defective rate In the present invention, the temperature of the workpiece is set to the temperature sensor 40 in the process of measuring the heating temperature of the workpiece by the temperature sensor 40 in the state of setting a suitable heating temperature of 1230 ℃ in the temperature sensor 40 When the temperature falls below 1230 ° C., a signal is output to the controller 50 to stop the operation of the ram 20, thereby reducing the defective rate of the workpiece to be forged and improving quality. It will be able to understand.

The controller 50 controls the driver 30 to operate the RAM 20 through a signal output from the temperature sensor 40.

Hereinafter, a method of stopping the operation of the ram according to the decrease in the heating temperature of the workpiece by using the forging device provided with the temperature sensor 40 according to the present invention will be described with reference to FIG. 3.

First, the operator puts the workpiece heated to a predetermined temperature on the moving table 10, and when the power is applied to the drive unit 30, the ram 20 is connected to the drive unit 30 and the piston rod 25 ) Works vertically and vertically and forging the workpiece placed on the moving table 10 by using a tool installed on the bottom surface of the ram 20 (step S1).

Next, the temperature sensors 40 installed on the bottom surface of the ram 20 during the forging operation are moved up and down with the ram 20 and close to the workpiece placed on the moving table 10. After that, the heating temperature of the workpiece is measured (step S2). At this time, when the heating temperature of the workpiece is lower than 1230 ° C., which is a temperature set in the temperature sensor 40, the temperature sensor 40 detects this and controls the controller ( The control unit 50 stops the operation of the ram 20 by cutting off the power supply of the driving unit 30 that operates the ram 20 (step S4), and then restarts the workpiece. Let it heat up.

On the contrary, when the heating temperature of the workpiece is higher than 1230 ° C., which is the temperature set in the temperature sensor 40, the signal is not output to the controller 50. Therefore, the ram 20 continuously operates and forges the workpiece. Molding.

1 is a view showing the mechanical configuration of the forging apparatus with a temperature sensor according to an embodiment of the present invention.

FIG. 2 is a circuit diagram of a forging apparatus with a temperature sensor shown in FIG.

3 is a flow chart of the forging apparatus with a temperature sensor shown in FIG.

10: moving table 20: ram

30: drive unit 40: temperature sensor

50: control unit

Claims

The moving table 10 in which the workpiece heated at a predetermined temperature is placed and the moving table 10 are positioned at a predetermined distance from the moving table 10 and move vertically up and down according to the driving of the driving unit 30. In the forging device composed of a ram 20 for forging the workpiece placed on the moving table 10 by using a tool provided,

At least one temperature sensor 40 is installed on the bottom surface of the ram 20, and the temperature sensors 40 measure a heating temperature of the workpiece in a state in which the workpiece is in close proximity to the workpiece according to the operation of the ram 20. To output a signal to the controller 50;

The control unit 50 is a forging device having a temperature sensor, characterized in that for controlling the drive unit 30 for operating the RAM 20 through the signal output from the temperature sensor (40).