KR20190031353A - Press having a servo feeder capable of varying pitch - Google Patents

Abstract

The present invention relates to a press having a variable pitch servo feeder, and specifically, to a device which includes an improved link type variable pitch feeder and a servo motor, thereby accurately feeding a workpiece even during a high speed operation of a press and varying a transfer pitch of the workpiece without stopping the press. The press for machining a workpiece (1) while a slider (140) ascends depending on the rotation of a crankshaft from a main body (100) includes: a detection servo (200) detecting the rotational speed and rotational angle of the crankshaft to output an electric signal; a driving servo (300) rotating an output shaft (310) capable of rotating forwards and backwards according to a control signal; a feeder (400) connected to the output shaft (310) to transfer the workpiece (1); and a control unit (500) having an input and output means (510) and connected to the detection servo (200) and the driving servo (300) to control the rotational speed and rotational angle with respect to the output shaft (310) of the driving servo (300) according to the rotational speed and the rotational angle of the crankshaft detected by the detection servo (200), and to set an initial position, a standard pitch (SP), and a variable pitch (VP) of the feeder (400), and repeated patterns of the standard pitch (SP) and the variable pitch (VP). The press can make the machining quality of the workpiece better and maximize the marketability of the press and user convenience.

Description

[0001] The present invention relates to a press with a variable pitch servo feeder capable of varying pitch,

The present invention relates to a press with a variable pitch servo feeder, and more particularly, it relates to an improved link type variable pitch feeder that can accurately feed a workpiece even during a high speed operation of a press by applying a servo motor, The present invention relates to an apparatus for changing the feed pitch for a workpiece without stopping the workpiece while improving the machining quality of the workpiece and maximizing the commerciality of the press and user's machining convenience.

Generally, a press is generally referred to as a machine tool that performs processing such as bending, shearing, and section shrinkage by applying plastic deformation to a material.

A typical example of the press working is a plastic plate which is formed by plastic deformation by applying a compressive force to a metal plate having a relatively thin thickness and is widely used from precision parts of a watch and a camera to a car body.

As materials of this press processing, steel plate, copper plate, brass plate, aluminum plate as well as plastic and fiber are used, and as a feature of press processing, it can be processed without heating, and it can be processed to exact dimension and shape in a short time. It has the advantage of being exchangeable and excellent in mass production.

A feeder provided in such a press is collectively referred to as a device for feeding a work piece to a press by using the power transmitted from the press or for transferring a work piece being processed on a press.

However, in a conventional feeder apparatus provided in a general press, it is possible to adjust the pitch only when the press is stopped, in order to adjust the pitch, which is the travel distance of the workpiece in accordance with one pressing of the press.

Therefore, even if machining is possible with a relatively small number of machining cycles using a relatively long pitch, it is inevitable that the machining should be performed with a large number of machining cycles by using a short pitch inevitably when the machining product row on the workpiece does not fit.

In order to solve such a disadvantage, Korean Registered Utility Model No. 20-0409609 filed by the present applicant discloses a variable pitch feeder system which can change the pitch without stopping the operation during the press operation.

However, since the conventional variable pitch feeder system disclosed in Korean Utility Model Publication No. 20-0409609 drives the crankshaft rotational force of the press by a plurality of link elements, the feed of the workpiece during high-speed operation of 250 times per minute It is difficult to precisely produce defective products, and it is difficult to mechanically set the pitch in advance, and it is possible to select only two pitches that are set. Especially, when the width of the workpiece is wide, both sides of the workpiece are fed There was a technical problem that it was not able to do.

Korean Registered Utility Model No. 20-0409609

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to improve the conventional link type variable pitch feeder and to apply the servo motor to feed the workpiece accurately even during high speed operation of the press, The present invention also provides a press with a variable pitch servo feeder which can maximize the commerciality of the press and the user's machining convenience by changing the feed pitch with respect to the work without stopping the press.

The present invention relates to a press for machining a workpiece while lifting a slider from a main body in accordance with rotation of a crankshaft, A detection servo for detecting a rotation speed and a rotation angle of the crankshaft and outputting an electrical signal; A drive servo for rotating an output shaft rotatable in a forward / reverse direction in accordance with a control signal; A feeder mechanism connected to the output shaft for feeding the workpiece; Output means connected to the detection servo and the drive servo for controlling the rotation speed and the rotation angle of the drive servo with respect to the output shaft in accordance with the rotation speed and the rotation angle of the crankshaft detected by the detection servo, A control unit capable of setting an initial position, a reference pitch, a variable pitch, and a repetition pattern for the reference pitch and the variable pitch for the feeder mechanism.

At this time, when the top dead center of the slider is set to 0 degrees and the bottom dead center of the slider is set to 180 degrees, the rotational angle of the crankshaft is 90 degrees, Lt; / RTI > It is preferable that the initial position is a position when the feeder mechanism advances the workpiece to the maximum.

In addition, the drive servo and the feeder mechanism are provided symmetrically on both sides in the width direction of the workpiece in pairs; It is preferable that the controller sets and synchronizes the initial positions symmetrically with respect to the drive servo, and synchronously controls the rotational speed and the rotational angle of each output shaft.

Further, the output shaft of the drive servo is a screw threaded shaft; The feeder mechanism includes a base fixed to the main body, a guide screwed to the output shaft, a guide rail provided on the base to linearly guide the guide, and a connection Block.

In particular, the detection servo is connected to the crankshaft in a direction perpendicular to the crankshaft via a bevel gear to detect a rotation speed and a rotation angle of the crankshaft by receiving a rotating force of the rotating feeder shaft; It is most preferable that the input / output means include a touch screen and can express the rotation speed and the rotation angle of the crankshaft in real time.

The present invention as described above improves the existing link type variable pitch feeder and applies the servo motor so that the feed of the workpiece can be accurately performed even during the high speed operation of the press to improve the machining quality of the workpiece, The feed pitch for the workpiece can be changed more variously without stopping, thereby maximizing the commerciality of the press and the user's processing convenience.

1 is a perspective view showing a press having a variable pitch servo feeder according to the present invention,
Fig. 2 is an enlarged view of a portion A in Fig. 1,
Figure 3 is a partially exploded right side view of portion A of Figure 1,
Fig. 4 is an enlarged view of a portion B in Fig. 1,
5 is a front view showing an operating state of a drive servo in a press with a variable pitch servo feeder according to the present invention,
6 is a view showing a workpiece processed by a press with a variable pitch servo feeder according to the present invention;

1 is a perspective view showing a press having a variable pitch servo feeder according to the present invention.

Fig. 2 is an enlarged view of part A of Fig. 1, Fig. 3 is a partially exploded right side view of part A of Fig. 1, and Fig. 4 is an enlarged view of part B of Fig.

5 is a front view showing an operating state of a drive servo in a press with a variable pitch servo feeder according to the present invention. Fig. 5 (a) shows a state in which the feeder mechanism has advanced to the maximum, Fig. 5 (b) shows a state in which the feeder mechanism is retracted to a reference pitch, and Fig. 5 (c) shows a state in which the feeder mechanism is retracted at a variable pitch.

6 is a view showing a workpiece processed by a press with a variable pitch servo feeder according to the present invention.

The specific structure or functional description presented in the embodiment of the present invention is merely illustrative for the purpose of illustrating an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention can be implemented in various forms. And should not be construed as limited to the embodiments described herein, but should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Meanwhile, in the present invention, the terms first and / or second etc. may be used to describe various components, but the components are not limited to the terms. The terms may be referred to as a second element only for the purpose of distinguishing one element from another, for example, to the extent that it does not depart from the scope of the invention in accordance with the concept of the present invention, Similarly, the second component may also be referred to as the first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but it should be understood that there may be other elements in between something to do. On the other hand, when it is mentioned that an element is "directly connected" or "directly contacted" to another element, it should be understood that there are no other elements in between. Other expressions for describing the relationship between components, such as "between" and "between" or "adjacent to" and "directly adjacent to" should also be interpreted.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It will be further understood that the terms " comprises ", or "having ", and the like in the specification are intended to specify the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

The press with the variable pitch servo feeder of the present invention improves the existing link type variable pitch feeder and applies the servo motor so that the feed of the workpiece can be accurately performed even at the high speed operation of the press, And the feed pitch for the workpiece can be changed more variously without stopping the press, thereby maximizing the commerciality of the press and the user's machining convenience.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, the press 10 having the variable pitch servo feeder according to the present invention is configured such that the slider 140 is lifted and lowered in accordance with the rotation of the crankshaft (not shown) from the main body 100, 1. A press for processing a workpiece (1); A detection servo (200) for detecting a rotation speed and a rotation angle of the crankshaft and outputting an electrical signal; A drive servo (300) for rotating the output shaft (310) rotatable in the forward and reverse directions according to a control signal; A feeder mechanism (400) connected to the output shaft (310) and feeding the work (1); Output means (510) connected to the detection servo (200) and the drive servo (300) for controlling the drive servo (300) according to the rotation speed and the rotation angle of the crankshaft detected by the detection servo (SP), a variable pitch (VP), and the reference pitch (SP) of the feeder mechanism (400) And a control unit 500 capable of setting a repetitive pattern for the variable pitch VP.

That is, the press with the variable pitch servo feeder according to the present invention is provided with the detection servo 200, the drive servo 300, and the servo motor 300 in the press 10 having the crankshaft, the slider 140, , A feeder mechanism (400), and a control unit (500).

The workpiece 1 to be molded is supplied to the press 10 continuously from the left side in Fig. 2 and is formed in the press 10, and the formed workpiece 1 is discharged to the right side of the press 10 Will be.

Here, the main body 100 is a basic skeleton of the press 10, and a crankshaft is rotatably supported on the main body 100, and the slider 140 is provided so as to be movable up and down.

In this case, the driving source 130 for rotating the crankshaft is used to drive the press by outputting a rotational force. It is also possible to apply an internal combustion engine or the like. In the present invention, a large-capacity driving motor driven according to power supply is preferable something to do.

Although there is no limitation on the installation position of the drive source 130, it is preferable that the drive source 130 is provided near the crankshaft which will be described later, and the illustration is provided on the upper rear surface of the main body 100.

The crankshaft is rotatably supported on the main body 100 through a plurality of bearings and the like. The crankshaft has an eccentric portion formed at an intermediate portion of the crankshaft and rotates by receiving a rotational force from the driving source 130.

At this time, the eccentric portion is integrally formed so as to be spaced apart from the shaft center of the crankshaft by a predetermined distance, and at least one eccentric portion is formed in the crankshaft in consideration of the length of the slider 140 or the like according to the capacity of the press It will be possible.

Next, the slider 140 forms a work 1 passing through its lower side as it ascends and descends. When the slider 140 is lifted, the workpiece 1 is fed, The work 1 is formed.

That is, the slider 140 is connected to the eccentric portion of the crankshaft through a connecting element such as a connecting rod, so that the slider 140 is moved up and down according to the rotation of the crankshaft, The slider 140 is moved up and down once according to the rotation.

Particularly, the present invention further includes a detection servo 200, a drive servo 300, a feeder mechanism 400, and a control unit 500 in addition to the basic press 10 as described above.

First, the detection servo 200 detects the rotational speed and the rotational angle of the crankshaft, and outputs the detected value as an electrical signal.

Here, the rotation speed of the crankshaft may be the number of revolutions per minute. If the rotation angle of the crankshaft is 360 ° based on 0 °, the rotation angle can be recognized again from 0 ° while recognizing it as one rotation.

For example, it may be recognized as two revolutions in the case of 720 °, or two revolutions + 30 ° in the case of 750 °.

In addition, the detection servo 200 may be provided near the crankshaft so as to be able to detect the rotation speed and the rotation angle directly from the crankshaft, or to detect the rotation speed and the rotation angle from the crankshaft, It will be obvious that the rotational speed and the rotational angle of the crankshaft can be calculated by detecting the rotational speed and the rotational angle.

The rotation speed and the rotation angle of the crankshaft detected by the detection servo 200 will be used for control of the drive servo 300 to be described later.

Next, the drive servo 300 rotates the output shaft 310, which can rotate in the forward direction or the reverse direction, according to a control signal from the control unit 500 to be described later.

In this case, the drive servo 300 can control the rotation speed as well as the rotation speed of the output shaft 310. Here, the rotation speed can be the number of revolutions per minute, and the rotation angle of the output shaft 310 is 0 360 ° means one rotation, and in the case of 750 ° it can mean that it rotates 30 ° more after 2 rotations.

The feeder mechanism 400 is connected to the output shaft 310 of the drive servo 300. The feeder mechanism 400 presses the work 1 while reciprocating according to the rotation of the output shaft 310 10).

The increase or decrease of the rotation speed of the output shaft 310 may affect the speed at which the feeder mechanism 400 feeds the work 1 and the rotation angle of the output shaft 310 may be increased or decreased by the feeder mechanism 400, Will affect the pitch at which the workpiece 1 is fed.

Finally, the control unit 500 basically includes the input / output means 510 and can be connected to the detection servo 200 and the drive servo 300 by wired / wireless lines, respectively. However, .

The control unit 500 includes an arithmetic unit and a storage unit in addition to the input / output unit 510, so that the control unit 500 has a storing function as well as an arithmetic function.

Accordingly, data on the rotation speed and the rotation angle of the crankshaft detected by the detection servo 200 are received, and a control signal is transmitted to the drive servo 300 based on the data.

That is, the control unit 500 can control the rotation speed and the rotation angle of the drive shaft 300 with respect to the output shaft 310 according to the rotation speed and the rotation angle of the crankshaft detected by the detection servo 200 It is.

The control unit 500 may control the drive servo 300 based on the rotation angle of the crankshaft such that the initial position L of the feeder mechanism 400 and the reference pitch SP ), A variable pitch (VP), and a repetition pattern for the reference pitch (SP) and the variable pitch (VP).

Here, the reference pitch SP corresponds to a general pitch for advancing the work 1 when the slider 140 moves up and down once, as shown in Fig. 5 (b) Quot; refers to a pitch that is changed from the reference pitch SP, typically shorter than the reference pitch SP, as shown in (c) of FIG.

For example, assuming that the workpiece 1 is the cooling fin for the air conditioner illustrated in FIG. 6, a plurality of holes are formed in parallel with the cooling fin for the air conditioner. The reference pitch SP may be a pitch corresponding to the four holes formed in the work 1, assuming that four holes are drilled at one time of raising and lowering.

The variable pitch VP may be, for example, a pitch suitable for forming three holes in the work 1.

Therefore, in the press with the variable pitch servo feeder of the present invention configured as described above, the detection servo 200 detects the rotation speed and the rotation angle of the crankshaft, and based on the detected data, That is, the reference pitch SP or the variable pitch VP, when the slider 140 is moved up and down according to the rotation of the crankshaft by controlling the drive servo 300 connected to the feeder mechanism 400, It is possible to feed the work 1 to the work 1.

In addition, the controller 500 changes the pitch of the reference pitch SP and the variable pitch VP by the number of machining operations, that is, the reference pitch SP several times and the variable pitch VP, It is possible to set a repetitive pattern as to how many times to be machined.

As an example of such a repetitive pattern, the workpiece 1 is machined three times at a reference pitch SP to puncture eighteen holes, and then processed twice at a variable pitch VP or [(4x3) + ( (4 × 5) = 18 pieces of workpieces are machined five times at a reference pitch SP to puncture 23 holes in the workpiece 1 and then processed once at a variable pitch VP. + (3 × 1) = 23], it is possible to construct a repetitive pattern by variously changing the reference pitch SP and the variable pitch VP.

Conventionally, in order to drill 18 holes in the workpiece 1, 6 holes had to be machined at a short pitch so that only 3 holes could be machined, and 23 holes could not be formed in the workpiece 1. However, Can solve all of these problems.

Particularly, in the present invention, when the top dead center of the slider 140 is set to 0 degrees and the bottom dead point of the slider 140 is set to 180 degrees, Setting an initial position (L) for the feeder mechanism (400) at a rotation angle of the shaft of 90 degrees; It is preferable that the initial position L is a position when the feeder mechanism 400 advances the workpiece 1 to the maximum.

That is, when the slider 140 is positioned at the top dead center, the rotational angle of the crankshaft is 0 °, and when the slider 140 is positioned at the bottom dead center, the rotational angle of the crankshaft is 180 ° And the rotational angle of the crankshaft is 270 ° to 85 ° and the feeder mechanism 400 advances together with the workpiece 1. When the rotational angle of the crankshaft is 90 ° to 265 °, The feeder mechanism 400 alone is retracted.

Therefore, in the present invention, the feeder mechanism 400 is rotated in the initial position L as shown in Fig. 5 (a) in a state in which the rotation angle of the crankshaft at the maximum advancing position of the feeder mechanism 400 is 90 [ It would be most desirable to set.

1, the drive servo 300 and the feeder mechanism 400 are provided symmetrically on both sides in the width direction of the work 1 in pairs, It is preferable that the controller 500 sets and synchronizes the initial positions of the symmetrically provided drive servos 300 and synchronously controls the rotational speeds and rotational angles of the output shafts 310.

Although the drive servo 300 and the feeder mechanism 400 are not described in the above description, in the present invention, the drive servo 300 and the feeder mechanism 400 are paired, It is preferable to symmetrically be provided on both sides in the width direction of the work 1 and to perform the feeding simultaneously on both sides of the work 1. [

As described above, it is necessary to synchronize the drive servo 300 and the feeder mechanism 400 on both sides of the work 1 to feed the work 1 at the same timing and at the same speed.

To this end, the control unit 500 of the present invention sets and synchronizes the initial position L with respect to the drive servo 300 provided symmetrically.

In addition, by synchronously controlling the rotational speed and the rotational angle of each output shaft 310, each of the drive servos 300 and the feeder mechanisms 400 located on both sides of the work 1 can be symmetrically 1). ≪ / RTI >

Thus, in the present invention, even if the width of the work 1 is relatively wide, the feeding can be stably performed at the same timing on both sides of the work 1.

Further, in the present invention, the output shaft 310 of the drive servo 300 is a threaded screw shaft; The feeder mechanism 400 includes a base 410 fixed to the main body 100, a guide 420 screwed to the output shaft 310, and a base 420 fixed to the base 420 to linearly guide the guide 420. [ And a connection block 440 fixed to the guide 420 and adapted to transfer the work 1. The guide rail 430 may be provided on the guide 420,

That is, in the present invention, the output shaft 310 of the drive servo 300 is formed of a threaded screw shaft, and a guide 420 screwed to the output shaft 310 according to the rotation of the output shaft 310, And can be transported along the output shaft 310.

In particular, it is desirable that the mallet output shaft 310 be manufactured through rolling, rather than other processing, so as to have high strength and precision.

In addition, the feeder mechanism 400 may include a base 410, a guide 420, a guide rail 430, and a connection block 440 as shown in FIGS.

Here, the base 410 corresponds to a bracket for supporting the feeder mechanism 400 on the side of the main body 100 of the press.

The guide 420 includes a ball screw that is screwed to the output shaft 310. The guide 420 is linearly moved in accordance with rotation of the output shaft 310. [

Particularly, the guide 420 reciprocates according to the forward rotation and the reverse rotation of the output shaft 310.

As described above, the guide rail 430 guides the guide 420 in a linear reciprocating motion. It is preferable that two or more guide rails 430 are provided. In the figure, two guide rails 430 are provided, .

The connection block 440 is fixedly coupled to the guide 420 so that the connection block 440 substantially reciprocates linearly with the guide 420 and feeds the work 1 will be.

4, reference numeral 441 denotes a roller connected to a means (not shown) for substantially feeding the work 1.

1 to 3, the detection servo 200 is connected to the crankshaft in a direction perpendicular to the crankshaft via the bevel gear 110, and receives the rotational force of the rotating feeder shaft 120, Detecting a rotational speed and a rotational angle of the crankshaft; The input / output means 510 may include a touch screen and be capable of expressing the rotation speed and the rotation angle of the crankshaft in real time.

In the present invention, a bevel gear 110 is provided on the side of the press 10, and a feeder shaft 120 is connected to the bevel gear 110.

Accordingly, the rotational force of the crankshaft is changed to a right angle and transmitted to the feeder shaft 120.

That is, the crankshaft is disposed along the left-right direction of the press 10 as viewed from the front of the press 10 in the figure, and the feeder shaft 120 is disposed along the front-rear direction of the press 10.

3, the feeder shaft 120, which rotates by receiving the rotational force from the crankshaft via the bevel gear 110, is rotated through a chain and a sprocket or a belt and a pulley to rotate the resolver 610 and the encoder 620 It is preferable that the above-described detection servo 200 is also connected to these devices in the present invention.

That is, in the present invention, the detection servo 200 detects the rotation speed and the rotation angle of the feeder shaft 120 without directly detecting the rotation speed and the rotation angle of the crankshaft, The rotation angle may be calculated.

In addition, the input / output unit 510 provided in the control unit 500 may include an input function and an output function including a touch screen.

In addition, the input / output means 510 of the control unit 500 displays the rotation speed and the rotation angle of the crankshaft in real time as one of the output means, thereby visually recognizing the operation state of the present press 10 to the operator It becomes possible.

For example, the rotation angle of the crankshaft may be expressed in analog, and the rotation speed may be expressed in digital.

Hereinafter, the operation of the present invention will be described with reference to FIGS. 1 to 6. FIG.

The press with the variable pitch servo feeder according to the present invention configured as described above operates the feeder mechanism 400 by controlling the drive servo 300 according to the rotation speed and the rotation angle of the crankshaft, And the feeder mechanism 400 feeds through the control of the drive servo 300 located on both sides of the work 1 so that the two drive servos 300 located on both sides are simultaneously driven The initial position (L) setting for these is preferentially required before driving.

For this purpose, the rotation angle of the crankshaft is set at 90 degrees in order to set the position when the feeder mechanism 400 has advanced to the maximum in the press 10 as the reference position.

In this state, the guide 420 of the feeder mechanism 400 and the connecting block 440 are positioned at the positions where they have advanced to the maximum as shown in Fig. 5 (a).

At this time, the two drive servos 300 and the feeder mechanism 400 located on both sides of the work 1 are positioned on the same line.

In this state, the user sets this position to the initial position L by using the input / output means 510 of the control unit 500. [

The position where the feeder mechanism 400 reaches the maximum position is set in the control unit 500 at the rotational angle of 90 degrees of the crankshaft and at the same time the position of the drive servo 300 located on both sides of the work 1 is set, Synchronization is also performed.

Then, the control unit 500 sets the reference pitch SP and the variable pitch VP.

As described above, the reference pitch SP may be set to, for example, a pitch suitable for drilling four holes, and the variable pitch VP may be set to a pitch suitable for drilling three holes, for example.

In addition, the control unit 500 also sets a repetition pattern for the reference pitch SP and the variable pitch VP.

For example, as shown in Fig. 6 (a), suppose that a work 1 having 40 holes is pressed, for example, a heat radiating fin of an air conditioner.

In this case, when the slider 140 moves up and down one time, four punches are formed. In this case, when the press processing is performed ten times without changing the pitch from the reference pitch SP, The molding can be completed.

However, suppose, for example, that as shown in Fig. 6 (b), a workpiece 1 having 38 holes is to be pressed.

Also in this case, the reference pitch SP is a pitch for performing four punctures, and the variable pitch VP is a pitch including three punctures.

Thus, the workpiece 1 having 38 holes can be formed by machining eight times at the reference pitch SP and then two times at the variable pitch VP.

That is, according to the present invention, the controller 500 can actively change the reference pitch SP and the variable pitch VP according to the set repetition pattern, thereby making it possible to more conveniently and quickly process the work 1. [

When the repetitive pattern is completed once in this manner, the work 1 to be continuously fed can be cut with a separate cutter, and the repetitive pattern is repeatedly performed thereafter.

Although it has been exemplified that only the reference pitch SP and the variable pitch VP are changed by changing only the pitch in the above, the variable pitch VP may be defined as a first variable pitch, a second variable pitch, It is obvious that a more various pattern can be set and the work 1 can be processed in various patterns.

Therefore, the press with the variable pitch servo feeder according to the present invention improves the existing link type variable pitch feeder and applies the servo motor, so that the feed of the workpiece can be accurately performed even at the high speed operation of the press, The present invention is an invention having an excellent advantage that it is possible to maximize the productivity of the press and the processing convenience of the user by improving the processing quality and changing the feed pitch for the work without stopping the press.

The above embodiment is an example for explaining the technical idea of the present invention specifically, and the scope of the present invention is not limited to the above-mentioned drawings or embodiments.

1: workpiece 10: press
100: main body 110: bevel gear
120: feeder shaft 130: driving source
140: slider 200: detection servo
300: drive servo 310: output shaft
400: Feeder mechanism 410: Base
420: guide 430: guide rail
440: connecting block 441: roller
500: control unit 510: input / output means
610: Resolver 620: Encoder

Claims (5)

1. A press for machining a workpiece with a slider lifted and lowered in accordance with rotation of a crankshaft from a main body;
A detection servo for detecting a rotation speed and a rotation angle of the crankshaft and outputting an electrical signal;
A drive servo for rotating an output shaft rotatable in a forward / reverse direction in accordance with a control signal;
A feeder mechanism connected to the output shaft for feeding the workpiece;
Output means connected to the detection servo and the drive servo for controlling the rotation speed and the rotation angle of the drive servo with respect to the output shaft in accordance with the rotation speed and the rotation angle of the crankshaft detected by the detection servo, And a controller capable of setting an initial position, a reference pitch, a variable pitch, and a repeat pattern for the reference pitch and the variable pitch for the feeder mechanism. 2. The crankshaft of claim 1, wherein when the top dead center of the slider is a rotation angle of 0 DEG of the crankshaft and the bottom dead center of the slider is a rotation angle of 180 DEG of the crankshaft, Setting an initial position for the feeder mechanism in the feeder mechanism;
Wherein the initial position is a position at which the feeder mechanism advances the workpiece to the maximum. ≪ RTI ID = 0.0 > 8. < / RTI > 3. The apparatus according to claim 2, wherein the drive servo and the feeder mechanism are symmetrically provided on both sides in the width direction of the workpiece in pairs;
Wherein the control unit synchronously sets and synchronizes the initial positions of the symmetrically provided drive servos and synchronously controls the rotational speeds and the rotational angles of the respective output shafts. 4. The apparatus of claim 3, wherein the output shaft of the drive servo is a threaded screw shaft;
The feeder mechanism includes a base fixed to the main body, a guide screwed to the output shaft, a guide rail provided on the base to linearly guide the guide, and a connection Wherein the control unit includes a variable pitch servo feeder. 5. The crankshaft of claim 4, wherein the detection servo is connected to the crankshaft in a direction perpendicular to the crankshaft via a bevel gear to receive a rotation force of a rotating feeder shaft to detect a rotation speed and a rotation angle of the crankshaft;
Wherein the input / output means includes a touch screen and is capable of expressing the rotation speed and the rotation angle of the crankshaft in real time.

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