KR200325355Y1 - Servo press - Google Patents

Abstract

The present invention is to configure the drive source of the electric press with a servo motor to work freely changing the data settings, slide motion and speed,

In the driving of the slide 8 by the electric servo motor 15 connected to the servo amplifier 13 and the servo controller 12, the frame 9 is supported by a bearing and the driver shaft is able to rotate 14 is installed and the driver shaft 14 and the electric servo motor 15 are connected by a coupling 16 such that the coupling 16 intermittently controls the power of the servomotor 15. The pinion gear 14a of (14) is engaged with the main gear 18 of the crankshaft 2 to rotate the crankshaft 2, and the connecting rod 4 of the crankshaft 2 has a guide ( 6, the plunger (5) to move up and down is coupled, the plunger (5) is coupled to the adjust screw (7) fixed to the slide (8) by the connecting rod (4) plunger (5) Slide 8 is configured to move up and down, and the frame of the electric servo press "C" type, precision, it is possible to mass production of high quality products to be applied to both the "H" type, semi "H", single and double hureim hureim.

Description

Electric Servo Press {SERVO PRESS}

The present invention relates to an electric press. More particularly, the present invention relates to an electric servo press using a servo motor that can be configured to operate by changing a data setting, a slide motion and a speed freely by configuring a driving source of the electric press as a servo motor.

Generally known crank presses have a clutch mounted between the main motor (general motor, variable motor) and the flywheel so that the clutch connects / disconnects the power of the main motor so that when the flywheel is connected by the clutch, the pinion of the drive shaft The gear rotates the main gear, and the main gear is configured to move the slide upward and downward as the connecting rod connected to the crankshaft is operated.

In addition, the link press is equipped with a link in the drive unit so that the slide motion can be operated slowly from the top dead center to the bottom dead center and can be rapidly returned after forming the product. Since the lower mold touches smoothly, there is less punching noise and longer life of the mold and punch.

The knuckle press is a cold forging press that puts a link in the driving part and pulls the connecting rod from the rear side rather than in the slide direction. The product can be pressed down, making it suitable for coining and extrusion operations.

On the other hand, the electric servo press is assembled with a pulley on the servo motor, the same pulley is assembled to the other ball screw is connected to the timing belt for power transmission to the pulley and pulley, and the upper part of the ball screw is fixed to the frame by bearings The lower part of the ball screw is fixed to the slide and is configured to freely move the slide up and down by the power of the servomotor through the ball screw.

However, in the past, the power of the main motor is configured to move the crankshaft and the connecting rod slide up and down by gears for connecting and shortening the clutch brake. However, even after adjusting the RPM of the main motor, the slide is lowered once. Speed control is impossible during the rise, the crank press, the link press, the knuckle press has a problem that can not perform other tasks in parallel except their own slide motion.

Due to the above characteristics, the press itself is heavy and the size is needed to remove the crank press and replace it with another link press and knuckle press due to the characteristics of the product to be molded during the line work. It was very difficult to reconfigure the layout due to the different relationship, and the cost and time loss were considerable.

As another example, since the electric servo press disclosed in Korean Patent Laid-Open Publication No. 1999-0066739 has to receive all the loads of the ballscrews on the slides, the ballscrews must be manufactured in a relatively large special type. Because it is difficult to receive, it is not commercialized, and there is no gear, so deceleration is not achieved. Therefore, a large-capacity servo motor is required, which causes a large increase in the press amount.

In order to solve the conventional problems as described above, in the present invention, any slide motion such as crank motion, link motion, and knuckle motion can be freely used in one electric servo press, so that the layout can be easily changed during line work. The purpose of the present invention is to provide an electric servo press which inserts gears into the drive unit to reduce the capacity of the servomotor by the reduction ratio of the gears, thereby greatly reducing manufacturing costs and thus benefiting international competitiveness.

In order to achieve the above object, the electric servo press of the present invention slides by a servo amplifier 13 mounted on a frame 9 and an electric servo motor 15 connected to a servo controller 12 as shown in FIG. 1. (8), the servo motor is connected to a driver shaft (14), which is supported by a bearing installed in the frame (9) and is free to rotate, and the driver shaft (14) and the servo motor ( Coupling 16 is installed between the 15 so that the coupling 16 to control the power of the servomotor 15, the pinion gear 14a is condensed to the driver shaft 14 is the crankshaft ( 2) the crankshaft (2) is equally rotated by the driver shaft (14) by being assembled with the main gear (18) condensed to each other, and the connecting rod (4) on the outer circumferential surface of the crankshaft (2) ) Is assembled The plunger 5 supported by the guide 6 is linearly moved up and down by the necking rod 4, and the adjust screw 7 coupled to the slide 8 is attached to the other end of the plunger 5. It is characterized in that the slide 8 is configured to move up and down by the connecting rod 4 by being fixedly connected.

In addition, the present invention is to drive the slide (8) by the servo amplifier (13) and the electric servo motor (15) connected to the servo controller 12 mounted on the frame (9) as shown in FIG. In addition, the frame 9 is provided with a driver shaft 14 supported by the bearing to rotate, and the driver shaft 14 and the electric servo motor 15 are connected by a coupling 16 to the coupling ( 16 is to control the power of the servomotor 15, the pinion gear 14a of the driver shaft 14 is meshed with the main gear 18 of the crankshaft (2) to rotate the crankshaft (2). In the connecting rod 4 of the crankshaft 2, a link 22 having one end fixed to the frame 9 and a link 21 fixed at one side to the plunger 5 are assembled together. An adjust screw 7 fixed to the slide 8 is coupled to the plunger 5 to connect the connector. It is arranged a slide (8) with a plunger (5) by the rod (4) so as to up, down movement and to a further feature.

In addition, the present invention is to install the servo amplifier 13 and the servo controller 12 for controlling the servo motor 15 together, and all the electrical components and operation panel 23 required to operate the press is separated from the frame 9 separately. And, the lower side is characterized in that the moving wheel 24 is installed so as to be movable so that the worker can move in a comfortable and stable position while moving easily at a desired position.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and effect according to a specific embodiment of the present invention as follows.

1 is an exemplary view showing that the electric servo press of the present invention is configured in such a manner as to drive a slide by a crankshaft,

Figure 2 is another exemplary view showing that the electric servo press of the present invention is configured in such a way to drive the slide by the link.

<Description of Symbols for Main Parts of Drawings>

1. Crankshaft Supporter 2. Crankshaft

3. Front crank metal 4. Connecting rod

5. Plunger 6. Plunger Guide

7. Adjust screw 8. Slide

9. Frame 10. Bolster

11. Adjust motor 12. Servo controller

13. Servo Amplifier 14. Drive Shaft

14a. Drive Pinion Gear 15. Servo Motor

16. Coupling 17. Housing (rear)

18. Main Gear 19. Rear Crank Metal

20. Housing (front) 21,22. link

23. Operation panel

1 is an exemplary view showing that the electric servo press of the present invention is configured in a manner of driving a slide by a crankshaft, and FIG. 2 is that the electric servo press of the present invention is configured in a manner of driving a slide by a link. Another exemplary diagram shown.

As shown here, the frame 9 of the electric servo press is installed so as to face thick iron plates on both sides, and the left and right reinforcing steel plates are fixed therebetween, and the frame 9 has a bolster 10 and a slide. (8), the driving units 2, 4, 14, 18, 21, 22, the servo motor 15, the servo amplifier 13, and the servo controller 12 are basically mounted.

A drive shaft 14 supported by a servo motor 15 driven by the servo amplifier 13 and the servo controller 12 and a bearing inserted into the housings 17 and 20 of the frame 9 to rotate freely. The coupling 16 is provided between the couplings 16 so that the coupling 16 connects / disconnects the power of the servomotor.

The drive pinion 14a is condensed to the drive shaft 14, and the drive pinion 14a is engaged with the main gear 18 of the crankshaft 2 so that they engage with each other to rotate.

The main gear 18 is an integral type combined with the crank shaft 2 and the KEY drive, the crank shaft 2 is supported by a metal in the crank supporter 1 on the front side and a metal fitted to the frame 9 on the rear side. It is possible to rotate.

The crankshaft 2 is assembled and the connecting rod 4 which moves up and down is connected to the plunger 5, and the plunger 5 is moved up and down along the guide 6 mounted to the frame 9. It is intended to move in a straight line.

An adjust screw 7 is assembled to the plunger 5, and the adjust screw 7 is connected to an overload protector device that automatically stops the press in case of overload.

The overload protector device is filled with oil (OIL) in the piston of the cylinder installed inside the oil, the oil is connected to the overload protector pump, the piston of the cylinder in the overload protector pump when the overload protector pump The press is automatically stopped by an electrical signal touching.

In addition, the slide 8 is provided with an adjuster for adjusting the height of the mold when the height is different from each other.

The adjuster is configured to rotate the worm shaft by assembling the sprockets of the adjust motor 11 and the sprockets of the worm shaft to each other, and the worm shaft includes an adjust screw 7 engaged with the worm wheel. It is comprised so that it may move downward, and the height of the slide 8 is arbitrarily adjusted by the height of a metal mold | die, while raising and lowering the slide 8 with the said adjust screw.

The drives 2, 4, 14, 18, 21, 22 and the slide 8 are directly connected to the servomotor 15 so that the slide 8 and the drives 2, 4, 14, 18, 21, 22 are connected. The rotation and stop are the same according to the rotation speed of the servomotor 15.

The servo amplifier 13 and the servo controller 12 controlling the servo motor 15 are provided in one place so as to prevent the occurrence of noise according to the length of each of these wires.

The operation panel 23 is configured separately from the frame 9, and a separate wheel for moving 24 is installed on the lower side of the operation panel 23 so as to work in a safe position while moving the operation panel 23.

In addition, the operation panel 23 is provided with a data input device and a number button for adjusting the rotation speed of the servomotor 15 to perform slide motions such as crank motion, link motion and knuckle motion according to the information input by the data input device. It is configured to adjust freely.

Therefore, the operator can freely adjust the slide motion by operating the number button of the control panel 23 in which data is inputted by the data input device, thereby mass-producing high-precision and high-precision products according to the characteristics of the product. There is no inconvenience to change.

As such, the present invention connects the drive shaft 14 to the servo motor 15 in series, and drives the drive pinion gear 14a, the main gear 18, the crankshaft 2, and the connecting rod 4 by the drive shaft. The power (POWER) and energy (ENERGY) required for molding the product can be easily controlled by controlling the servo motor 15 by configuring the plunger 5, the slide 8, and the driving of the plunger 5, the slide 8 in order. Reverse rotation is also possible.

In addition, the present invention can reduce the capacity of the servo motor by the reduction ratio by adding the main gear 18 and the drive pinion gear 14a, which are reduction gears, so that when drawing or forging is necessary due to the characteristics of the product during line work, When changing the layout that requires the knuckle press process, slide-free motion is possible so that the layout does not need to be changed.

In addition, the electric servo press can be selected according to the characteristics of the product to be molded by inserting the crank shaft 2 and the link mechanisms 21 and 22, and the driving part is formed by the main gear 18 and the drive pinion gear 14a. By reducing the effect of reducing the capacity of the servomotor 15 by reducing the manufacturing cost can be internationally competitive.

On the other hand, the frame of the electric servo press can use the single frame and the double frame so that the size of the product to be molded is various and the continuous mold and the transfer mold can be used. Because frame deformation occurs in the "frame", the frame may be used as a semi "H" type frame.

When the servo motor 15, the servo amplifier 13, and the servo controller 12 are far apart, there is a fear of malfunction due to a long wiring length, but the present invention may cause a malfunction of the servo motor 15 and the servo amplifier 13. By installing the servo controller 12 in one place, it can have a noise prevention effect.

When the electric panel and the operating panel 23 are mounted on the frame 9, the frame 9 and the electric panel and the operating panel 23 are framed so as to prevent damage to the electric parts that are weak to impact due to vibration generated when the product is punched out. Separately from 9) has the advantage that it can sufficiently withstand the vibration of the press, the wheel is provided on the lower side of the operation panel 23, the advantage that the operation panel can be arbitrarily moved and changed the position according to the position of the operator have.

As described above, the electric servo press of the present invention has a main gear for driving the crankshaft 2 or the links 21 and 22 mechanism to the drive unit for operating the slide 8 by the power of the servomotor 15. (18) and the drive pinion gear 14a are installed to reduce the capacity of the servomotor 15 by the reduction ratio, and the slide motion can be changed freely. It took a lot of time and money to put the press in and out of the line, but the present invention can freely change all the slide motions in one electric press, so that any slide motion can be created, and there is no need to change the layout.

Therefore, the cost and time due to the layout change as in the prior art has the advantage that can greatly contribute to the productivity improvement.

In addition, the operation panel is separated from the frame and the operator can work in a safe position is a very useful design having a great effect on safety.

Claims (8)

In that the slide 8 is driven by the servo amplifier 13 mounted on the frame 9 and the electric servo motor 15 connected to the servo controller 12. The frame 9 is provided with a driver shaft 14 so as to be supported and rotated by a bearing, and the driver shaft 14 and the electric servo motor 15 are connected by a coupling 16 to the coupling 16. The power of the servomotor 15 is interrupted, and the pinion gear 14a of the driver shaft 14 meshes with the main gear 18 of the crankshaft 2 to rotate the crankshaft 2. The connecting rod 4 of the crankshaft 2 is coupled to the plunger 5 which moves up and down along the guide 6, and the adjuster screw fixed to the slide 8 is attached to the plunger 5. 7) is coupled so that the slide (8) moves up and down with the plunger (5) by the connecting rod (4), including a control panel (23) for controlling the drive of the electric servo motor (15) Electric servo press, characterized in that. According to claim 1, wherein the operating panel 23 for operating the electric servo press is installed separately from the frame (9), the electric servo press, characterized in that the movement wheel 24 is installed on the lower side of the operation panel (23). . The electric servo press according to claim 1, wherein the servo amplifier (13) and the servo controller (12) are installed at positions adjacent to the servo motor (15). The slide adjuster installed in the slide 8 is engaged with the sprocket of the slide adjust motor 11 and the sprocket of the worm shaft. A bite adjust screw (7) is assembled is an electric servo press, characterized in that configured to adjust the height of the slide (8) while raising and lowering the adjust screw (7). In that the slide 8 is driven by the servo amplifier 13 mounted on the frame 9 and the electric servo motor 15 connected to the servo controller 12. The frame 9 is provided with a driver shaft 14 so as to be supported and rotated by a bearing, and the driver shaft 14 and the electric servo motor 15 are connected by a coupling 16 to the coupling 16. The power of the servomotor 15 is interrupted, and the pinion gear 14a of the driver shaft 14 meshes with the main gear 18 of the crankshaft 2 to rotate the crankshaft 2. In the connecting rod 4 of the crankshaft 2, a link 22 having one end fixed to the frame 9 and a link 21 fixed at one side to the plunger 5 are assembled together. An adjust screw 7 fixed to the slide 8 is coupled to the slide 5 so that the slide 8 moves up and down together with the plunger 5 by the connecting rod 4. An electric servo press, comprising: an operation panel 23 for controlling the drive of (15). 6. The electric servo press according to claim 5, wherein the operation panel 23 for operating the electric servo press is separately installed from the frame 9, and a moving wheel 24 is installed on the lower side of the operation panel 23. . The electric servo press according to claim 5, wherein the servo amplifier (13) and the servo controller (12) are installed at positions adjacent to the servo motor (15). The slide adjuster installed inside the slide (8) is engaged with the sprocket of the slide adjust motor (11) and the sprocket of the worm shaft, and the worm wheel is engaged with the worm wheel. A bite adjust screw (7) is assembled is an electric servo press, characterized in that configured to adjust the height of the slide (8) while raising and lowering the adjust screw (7).