KR20190095857A - Rotary table - Google Patents

Abstract

The present invention relates to a rotary table and, more specifically, to a driving part for providing a rotation force and a rotor connected by a rotation force transmission means so as to precisely rotate the rotor. In addition, an object of the present invention is to provide a rotary table capable of discharging compressed flow internal air generated by the rotation of the rotor to the outside of the stator when the rotor configured to process a workpiece is rotated. To this end, the present invention is formed with an air discharge path through which the internal air is discharged, wherein the air discharge path is formed in a multi-stepped bent form such that the internal air is discharged, and is capable of preventing the external air or foreign matters from being introduced into the inside, thereby having an advantage capable of preventing a device from being damaged, having a deterioration of processing performance or a decrease in productivity due to the air or foreign matters generated inside.

Description

Rotary table {Rotary table}

The present invention relates to a rotary table, and more particularly, to precisely rotate the rotor by connecting the driving unit and the rotor providing the rotational force with the rotational force transmission means.

In addition, the present invention is configured to replace the stage in accordance with the state of the object by configuring the stage on which the object to be processed is detachable from the rotor.

In particular, the present invention relates to a rotary table capable of discharging the compressed air internal air generated by the rotation of the rotor to the outside of the stator when the rotor configured to process the object to be rotated.

In general, machine tools use various cutting or non-cutting methods to process metal or non-metallic substrates (hereinafter referred to as 'working objects') into shapes and dimensions using suitable tools or to add more precise machining. The machine used for the purpose.

The machine tool may be classified into a turning center in which a workpiece is rotated and a fixed tool is moved and processed, and a machining center in which the tool is rotated and a workpiece is moved and processed.

Here, the latter machining center may include a rotary table for arranging and rotating the object to be processed on the table. Such a rotary table is also called a turntable.

The rotary table may include a housing having an upper side opened, a rotor rotating in the housing, a table disposed on the rotor to rotate the object to be fixed to the upper side, and a stator for rotating the rotor. have.

In general, the rotary table is forced to generate internal air that is compressed and flows inside by the high speed rotation of the rotor.

Due to such compressed flow air, the rotor is vibrated, and the vibration of the rotor is transmitted to the table, which makes it difficult to precisely process the workpiece.

In addition, a heat displacement problem may occur due to the heat generated between the rotor and the stator, and such a problem may cause breakage of the machine tool, lowering of machining performance, or lowering of productivity.

Republic of Korea Patent Publication No. 10-0530562 'Rotary Table Device'

In order to solve the above problems, an object of the present invention is to provide a rotary table that can be used by replacing the stage according to the state of the object to be processed, by configuring the stage on which the object to be processed is detachable from the rotor.

In addition, an object of the present invention is to provide a rotary table capable of precisely controlling the rotor by providing a timing belt with a rotation force transmitting means for transmitting the rotational force in controlling the rotor through the servo motor.

In particular, it is an object of the present invention to provide a rotary table capable of discharging the compressed air internal air generated by the rotation of the rotor to the outside of the stator when the rotor configured to process the object to be processed is rotated.

In more detail, the present invention is formed with an air discharge passage for discharging the internal air, the air discharge passage is formed in a multi-stage bent form, the internal air is discharged, to prevent the outside air or foreign matter from entering the interior The purpose is to provide a rotary table.

In order to achieve the above object, the rotary table according to the present invention is connected to the stage unit, the lower part of the stage is placed, the driving unit for providing a rotational force and the rotational force transmission means to drive the drive unit. Accordingly, the rotating unit for rotating the stage portion and at least a portion of the rotating portion includes a body portion is rotated.

In addition, the stage unit may include an adsorption plate on which the object to be processed and a coupling unit formed at a lower portion of the adsorption plate and inserted into the rotating unit.

In addition, the adsorption plate, the plate negative pressure path for providing the adsorption force to the workpiece is configured therein, at least one plate negative pressure groove is formed in the upper portion that the object is in contact, the plate negative pressure path is the coupling It may be connected from the negative negative pressure pipe connecting groove to the plate negative pressure groove.

In addition, the rotating part, the upper rotary body including a plate coupling groove into which the coupling portion is inserted, the lower rotary body connected to the lower portion of the upper rotary body, is coupled to the lower portion of the lower rotary body, the rotational force transmission means is connected The rotary pulley for rotating the lower rotary body according to the driving of the drive unit and one end of the rotary body sound pressure pipe inserted into the plate coupling groove may be connected, and may include a rotary joint configured with a negative pressure supply on one side.

In addition, the upper rotating body, the plate detachment member is provided in the plate coupling groove, the coupling portion may be configured to be fitted to the plate detachable member.

In addition, the lower rotating body, a rotary body sound pressure flow path is formed therein, one end of the rotary body sound pressure pipe is connected to the upper, one end of the rotary joint is connected to the sound pressure pipe support member and the negative pressure pipe support Fixing the periphery of the member may include a support member fixing body coupled to the inner step of the lower rotating body.

In addition, an air discharge passage through which the compressed air flows by the rotation of the rotating unit to the body portion side may be further formed.

In addition, the air discharge flow path is a rotary table, characterized in that formed in multiple stages bent.

The upper rotating body may include a first step for guiding internal air generated by the rotation of the upper rotating body and the lower rotating body to the outside, and the lower rotating body may be a part of the first step. It may be formed to correspond to the second step may be coupled to the first step.

The body portion may further include a body upper cover positioned on a lower side of the upper rotating body and a side of the lower rotating body, and the upper body cover may include a first step corresponding to a shape of the first step and the second step. A third step is formed, the upper body cover is coupled to the upper portion, a portion of the lower rotating body includes a body housing is rotated therein, the body housing, the first step corresponding to the shape of the first step Four steps can be formed.

By means of the above solution, the present invention has the advantage that the stage on which the object to be processed is configured to be detachable from the rotor, can be used to selectively replace the stage according to the object to be processed.

In addition, the present invention has an advantage that the rotational force transmission means for transmitting the rotational force in the control of the rotor through the servo motor is provided with a timing belt, it is possible to precisely control the rotor compared to the rotation using the chain and gear.

However, the present invention may cause the rotor to be distorted due to the tension of the timing belt, it is possible to prevent this by arranging a bearing that can support the force in the vertical direction and the horizontal direction.

In addition, the present invention is configured to allow the compressed flow internal air generated by the rotation of the rotor to be discharged to the outside of the stator when the rotor configured to process the object to be processed is rotated, so that the internal air generated during rotation There is an advantage that can be prevented from damage of the device, a reduction in processing performance or a decrease in productivity.

In particular, the present invention is formed with an air discharge passage for discharging the internal air, the air discharge passage is formed in a multi-stage bent, so that the internal air is discharged, it is possible to prevent the external air or foreign matter from entering the interior There is an advantage that can prevent damage to the device, deterioration of processing performance or productivity decrease due to air or foreign matter generated inside.

In addition, the present invention constitutes a part of the air discharge passage in which the rotor and the stator are coupled to separate the rotor from the stator, so that the maintenance of the air discharge passage can be finely controlled, so that the air discharge passage is clogged by foreign matter. There is an advantage that can be prevented.

Therefore, it is possible to improve the reliability and competitiveness in the field of machine tools, in particular in the field of processing apparatus using a rotary table, the field of application of a rotary table, as well as the related or related fields.

1 is a cross-sectional view showing an embodiment of a rotary table according to the present invention.
FIG. 2 is a cross-sectional view illustrating a stage part of the rotary table illustrated in FIG. 1.
3 is a cross-sectional view illustrating a rotating part of the rotary table illustrated in FIG. 1.
4 is a cross-sectional view illustrating a body of the rotary table illustrated in FIG. 1.
5 is a cross-sectional view for explaining the air discharge passage according to the present invention.

Examples of the rotary table according to the present invention can be variously applied. Hereinafter, the most preferred embodiment will be described with reference to the accompanying drawings.

Prior to the description, hatching of the accompanying drawings will be omitted in order to clearly recognize the structure of the rotary table according to the present invention.

1 is a cross-sectional view showing an embodiment of a rotary table according to the present invention.

Referring to FIG. 1, a rotary table A according to the present invention includes a stay part on which a workpiece is placed, a rotating part 200 coupled to a stage part 100, and a body part into which at least a part of the rotating part 200 is inserted. 300).

In addition, it is inserted into a portion of the body portion 300 includes a drive unit (M) for controlling the rotational driving of the rotating unit (200).

The rotating part 200 and the driving part M are connected to the rotational force transmitting means 400, and the rotational force transmitting means 400 is connected to the motor pulley (unsigned) of the driving part M and the lower part of the rotating part 200.

Rotating pulley 270 may be provided below the driving unit M to be described in detail, and the rotational force transmitting means 400 may include a motor pulley (unsigned) and a rotating pulley 270 of the rotating unit 200. ) Is connected to transmit the rotational force of the driving unit (M) to the rotating unit (200).

The rotation of the driving unit M and the rotation unit 200 by the rotational force transmission means 400 is to control the rotation of the rotation unit 200 more precisely.

In case of transmitting the rotational force through the gear, an error may occur depending on the number of teeth, the diameter, the tooth width, and the like. The rotary table A according to the present invention rotates through the gear since the rotation is controlled through the rotational force transmission means 400. Compared to the control method, the processing precision is efficient.

However, when the rotational force transmission means 400 is used as a chain, there is a problem that the play occurs due to the play, the rotational force transmission means 400 according to the present invention is preferably provided with a timing belt, but is not limited thereto. Instead, the driving unit M and the rotating unit 200 may be connected to each other as long as the transmission means capable of transmitting the rotational force of the driving unit M to the rotating unit 200.

Hereinafter, the stage unit 100, the rotating unit 200, and the body unit 300 will be described in detail with reference to FIGS. 2 to 5.

FIG. 2 is a cross-sectional view illustrating a stage part of the rotary table illustrated in FIG. 1.

Referring to FIG. 2, the stage part 100 includes a coupling part 120 provided to be coupled to the suction plate 110 and the rotating part 200 on which the object is placed.

Adsorption plate 110 is formed in the shape of a disc, it is preferable to be configured to be fixed by adsorbing the object to be placed on the top.

To this end, the adsorption plate 110, at least one plate negative pressure groove 111 is formed in the upper portion in which the workpiece is placed in contact, the plate negative pressure passage 130 in which the negative pressure flows may be configured.

Coupling portion 120 may be formed to protrude downward in the lower portion of the adsorption plate 110 to be inserted into the rotating part (200).

The coupling part 120 is formed with a negative pressure pipe connecting groove 121 so that the negative pressure pipe of the rotating unit 200 to be described later, the plate negative pressure passage 130 is a negative pressure pipe connecting groove of the coupling portion 120 protruding downward ( 121 may be connected to the plate negative pressure groove 111 of the adsorption plate 110.

When there are a plurality of plate negative pressure grooves 111, a flow path connected to the plate negative pressure grooves 111 may be configured and connected to correspond to the number of plate negative pressure grooves 111.

3 is a cross-sectional view illustrating a rotating part of the rotary table illustrated in FIG. 1.

Referring to FIG. 3, the rotating part 200 includes an upper rotating body 210 coupled to the stage part 100, a lower rotating body 230 coupled to a lower portion of the upper rotating body 210, and a lower rotating body 230. Sound pressure supply pipe (not shown) of the sound pressure supply device (not shown) coupled to the rotary pulley 270 for rotating the lower rotor 230 in accordance with the drive of the drive unit (M) and the stage unit 100 to supply sound pressure ) Includes a rotary joint 260 connected thereto.

First, the upper rotating body 210 is coupled to the stage unit 100, the plate engaging groove 212 is formed is inserted into the coupling portion 120 of the stage unit 100.

The plate coupling groove 212 is formed in a form corresponding to the coupling portion 120 of the stage portion 100, the plate coupling groove 212 is provided with a plate detachable member 213 is coupled portion of the stage portion 100 Preferably, 120 is configured to be fitted.

The plate detachable member 213 may be provided as an oring that may compress and fix the coupling part 120 fitted into the plate coupling groove 212.

As such, the stage unit 100 on which the object to be processed is configured to be detachable from the rotating unit 200 has an effect of selectively replacing the stage according to the object to be processed.

The rotating unit 200 includes a rotating body sound pressure tube 220 such that the sound pressure flowing from the sound pressure supply pipe (not shown) of the rotary joint 260 is connected to the plate sound pressure passage 130 of the stage unit 100.

One end of the rotary body sound pressure tube 220 is connected to the negative pressure connecting portion 261 of the rotary joint 260, the other end is preferably connected to the upper rotary body (210).

To this end, the upper rotary body 210 is preferably formed with a negative pressure pipe coupling hole (212 ') formed through the plate coupling groove (212).

The coupling part 120 including the plate negative pressure passage 130 is inserted into the plate coupling groove 212 of the upper rotary body 210, and the rotary body negative pressure tube 220 and the plate negative pressure passage 130 are inserted into the plate coupling groove 212. The flow path of can be connected.

As shown in FIG. 1, the lower rotor 230 is inserted into the body 300 to be rotated within the body 300, and the lower portion of the upper rotor 210 coupled to the stage 100 is provided. Is coupled to.

The lower rotating body 230 includes a rotating body inner region 232 formed to penetrate from a part of the upper part to a part of the lower part such that a configuration such as a rotating body sound pressure tube 220 or a rotary joint 260 is located therein. do.

In addition, the lower rotating body 230 may include an inner step 233 so that the supporting member fixing body 250 to be described later is inserted into the rotating body inner region 232 and fixed in part.

In addition, the lower rotating body 230 connects the rotating body sound pressure tube 220 and the sound pressure connecting portion 261 of the rotary joint 260 to support the rotating body sound pressure tube 220 configured therein, and the rotating body. It may include a negative pressure pipe support member 240 for supporting the negative pressure pipe 220.

The negative pressure pipe support member 240 has a negative pressure connection flow path 241 formed therein so that the sound pressure supplied from the rotary joint 260 can be connected to the rotary body sound pressure tube 220, and the rotary body sound pressure tube 220. Is coupled to the upper portion of the negative pressure pipe support member 240, the negative pressure connecting portion 261 is coupled to the lower portion of the rotary body sound pressure tube 220.

The lower rotating body 230 may include a support member fixing body 250 for supporting the negative pressure pipe support member 240 for supporting the rotating body sound pressure tube 220, and the support member fixing body 250 supports the negative pressure pipe. The support member fixing body 250 may be supported by fixing the periphery of the member 240 and being coupled to the inner step 233 of the lower rotating body 230.

The rotating part 200 may prevent the detachment of the rotary body sound pressure tube 220 which may occur as it rotates through the sound pressure tube support member 240, and prevent the detachment of the sound pressure tube support member 240. 250) has the advantage that can be prevented

The rotary joint 260 is provided with a negative pressure supply unit 262 to which a negative pressure supply pipe (not shown) is connected, and is located below the lower rotating body 230.

The rotary joint 260 is preferably located in the lower rotor 230 so that the negative pressure supply unit 262 is located below the lower end of the lower rotor 230.

This is to prevent the negative pressure supply unit 262 from being blocked by the lower rotating body 230 so that the negative pressure supply tube can be connected to the negative pressure supply unit 262.

Even though the rotary pulley 270 and the lower rotary body 230 are rotated through the rotary joint 260, sound pressure may be continuously supplied.

Rotating pulley 270 is coupled to the lower portion of the lower rotating body 230 is connected to the above-described rotation force transmitting means 400.

At least a portion of the rotary joint 260 may be inserted into the rotary pulley 270 to be positioned.

Rotation force transmission means 400 is connected to the rotary pulley 270 is connected to the motor pulley (unsigned) of the drive unit M is coupled to the body portion 300 to be described later, the rotational force by the drive of the drive unit (M) It is transmitted to the rotary pulley 270 through the rotation force transmitting means 400, the lower rotary body 230, the upper rotary body 210 and the stage unit 100 is rotated by the rotation of the rotary pulley 270.

As shown in FIG. 1, the rotating part 200 is inserted to be spaced apart from the bottom of the body part 300, and is partially supported by the bearing 324 to be described later and coupled to the body part 300.

4 is a cross-sectional view illustrating a body of the rotary table illustrated in FIG. 1.

1 and 4, the body 300 includes an upper body cover 310 and a body housing 320 into which at least a portion of the lower rotating body 230 is inserted.

The upper body cover 310 is located at the lower side of the upper rotating body 210 and the lower rotating body 230, the upper cover hole 312 is formed so that the lower rotating body 230 can be inserted .

The body housing 320 includes a first region 322 in which the lower rotating body 230 is inserted and rotated, and includes at least one bearing 324 and 325 to rotate the lower rotating body 230. do.

The bearings 324 and 325 may be disposed at least one of the upper and lower portions of the first region 322, at least one of which is composed of a thrust bearing, and the lower rotating body may be tensioned by the rotational force transmitting means 400. It is preferable to correspond to the force applied to the lower portion of 230.

When the thrust bearing is included, the thrust bearing is preferably provided on the upper portion of the first region 322 configured at the upper portion thereof, thereby stably supporting the lower rotating body 230.

In addition, the bearings 324 and 325 of the rotary table A of the direct drive method according to the present invention, as shown in Figure 4, the rotary part 200 is provided so as to rotate inside the body 300 The upper bearing 324 for supporting and distributing the load of the stage part 100 and the rotating part 200 and the lower bearing 325 for responding to the tension of the rotational force transmitting means 400 may be provided.

The upper bearing 324 is provided to disperse the load of the rotating part 200 and the stage part 100 coupled to the upper part of the rotating part 200, and supports the inside and the upper part of the ball as shown in FIG. 4. A second angular ball bearing including an inner ring to support the first angular ball bearing 324 'including an outer ring supporting the outer and lower parts of the ball, and an inner ring supporting the inner and lower parts of the ball and an outer ring supporting the outer and upper parts of the ball. (324 '').

The first angular ball bearing 324 'is for supporting a force directed from the inside and the top of the ball to the outside and the bottom of the ball, and the second angular ball bearing 324' 'is the ball from the inside and the bottom of the ball. To support forces directed to the outside and top of the unit.

That is, the upper bearing 324 can support the force in the horizontal direction and the vertical direction.

Through this, there is an effect of preventing a decrease in machining performance due to rotational shaft deformation caused by the load of the stage part 100 and the rotating part 200.

The lower bearing 325 is provided to support only the force in the horizontal direction in order to correspond to the tension of the rotational force transmitting means 400, but is also provided to support the vertical direction as well as the upper bearing 324 as necessary. Of course it can be.

The body housing 320 may have a second region 323 formed at a lower portion such that any one of the rotating pulley 270, the rotary joint 260, and the rotational force transmitting means 400 is positioned.

In addition, the body housing 320 may have a lower cover 326 at the lower portion where the second area 323 is located to easily maintain the components included in the body housing 320.

1 and 4, the driving unit M is installed at one side of the body 300 to provide rotational force to the rotating unit 200.

The driving unit M may include a motor (unsigned) and a speed reducer (unsigned) therein, and the motor pulley (unsigned) may be provided at one side of the reducer to be located in the second region 323 of the body load. .

The driving unit composed of the motor, the reducer, and the motor pulley is a conventional technique, and detailed description thereof is omitted.

5 is a cross-sectional view for explaining the air discharge passage according to the present invention.

Rotary table according to the present invention according to the present invention, the air discharge passage 500 for discharging the internal air flows by the rotation of the rotary unit 200 to the body portion 300 side is provided.

In the rotary table A according to the present invention, the internal air is compressed and flows by the rotating part 200 which is rotated in the body part 300, and when the internal air is not discharged to the outside, the rotating part 200 is rotated. Since the vibration of the rotating part 200 is transmitted to the stage part 100, it may be difficult to precisely process the object.

Air discharge passage 500 is provided to prevent this, the heat generated between the rotating part 200 and the body is also discharged to the body portion 300 to damage the rotary table (A), decrease the processing performance or productivity decrease It is desirable to prevent.

The air discharge passage 500 may be formed to pass through any one of the first region 321 and the second region 322 of the body portion 300 from the outside of the body portion 300.

Air discharge passage 500 according to the present invention may be provided in a multi-stage bent form, it can be prevented from entering the foreign matter into the body portion 300.

On the other hand, the air discharge passage 500 may be formed through the coupling portion of the rotating part 200 and the body portion 300, hereinafter, the air formed through the coupling portion of the rotating portion 200 and the body portion 300 The discharge passage 500 will be described.

Referring to FIG. 5, the air discharge passage 500 of the rotary table A according to the present invention is formed by a combination of at least one step that is bent in multiple stages at the engaging portion of the rotating part 200 and the body part 300. Can be.

The step forming the air discharge passage 500 may be formed by a combination of any one of the first step 211 to the fourth step 321, the first step 211 is the lower portion of the upper rotor 210 It may be formed on one side.

The first step 211 is formed in a multi-step bent form toward the plate engaging groove 212 from the outside of the upper rotary body 210.

The second step 231 may be formed at any one side of the upper and side surfaces of the lower rotating body 220.

The second step 231 may be formed in a shape in which one end is bent toward one of upward and downward directions.

The upper portion of the second step 231 is preferably formed to be multi-stage bent in a corresponding shape so as to be able to be combined with a portion of the first step 211 of the upper rotary body (210).

A part of the first step 211 and the side of the second step 231 except for the portion engaged with the second step 231, the air discharged through the internal air is compressed and flows by the rotation of the rotating part 200 It becomes a guide wall for forming the flow path 500.

Subsequently, the third step 311 is formed at a portion of the upper part of the upper body cover 310 positioned at the lower side of the upper rotating body 210 and the lower rotating body 230, and the third step 311. Also, it becomes another guide wall for forming the air discharge flow path 500.

The first step 211 of the upper rotating body 210 and the third step 311 of the upper body cover 310 and the second step 231 and the upper body cover 310 of the lower rotating body 230 The third step 311 is spaced apart from each other by a predetermined interval, the flow path formed through this becomes part of the air discharge passage 500.

To this end, the third step 311 is preferably formed in multiple steps bent in a form corresponding to a part of the first step 211 and a part of the second step 231.

Finally, the fourth step, the internal air flows to the air discharge passage 500 formed of the first step 211, the second step 231 and the third step 311 to the outside of the body portion 300 It becomes another guide wall of the air discharge passage 500 to guide the discharge.

The fourth step is formed at one side of the upper part of the body housing 320, and is formed by being bent in multiple steps in a form corresponding to a part of the first step 211.

The fourth step is spaced apart from each other at a predetermined interval with a portion of the first step 211, the flow path formed through this becomes another part of the air discharge passage 500.

The first step 211 may form a flow path through a combination of the third step 311 and the fourth step 321, and the second step 231 may flow through a combination with the third step 311. The third step 311 forms a flow path through a combination of the first step 211 and the second step 221, and the fourth step 321 is a combination with the first step 211. The flow path can be formed through.

The air discharge passage 500 configured as described above can more effectively prevent inflow of foreign substances introduced from the outside than the flow passage formed through simple passage, and prevent the rotating unit 200 from vibrating due to the compressed flow air. Therefore, it is possible to minimize the processing failure rate of the object to be processed, there is an effect that can prevent damage to the rotary table (A) due to heat generation, reduced processing performance or reduced productivity.

The rotary table according to the present invention has been described above. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive.

A: Rotary Table
M: driving part
100: stage unit 110: adsorption plate
111: Plate Negative Pressure Groove
120: coupling portion 121: negative pressure pipe connection groove
130: plate negative pressure flow path
200: rotating portion 210: upper rotating body
211: first step 212: plate coupling groove
212 ': negative pressure pipe connection hole 213: plate detachable member
220: rotating sound pressure tube
230: lower rotor 231: second step
232: inner portion of the rotating body 233: inner step
240: negative pressure pipe support member 241: negative pressure connection flow path
250: support member fixing body
260: rotary joint 261: negative pressure connection
262: negative pressure supply
270: rotating pulley
300: body portion 310: body upper cover
311: third step 312: upper cover hole
320: body housing 321: fourth step
322: first region 323: second region
324: upper bearing 325: lower bearing
326: lower cover
400: rotational force transmission means
500: air exhaust passage

Claims (10)

A stage unit on which the object is placed;
A rotating part connected to a lower part of the stage part and connected to a driving part providing rotational force and a rotational force transmitting means to rotate the stage part according to the driving of the driving part; And
And a body part to which at least a part of the rotating part is inserted and rotated.
The method of claim 1,
The stage unit,
Adsorption plate on which the object to be processed is placed; And
And a coupling part formed under the adsorption plate and inserted into the rotating part.
The method of claim 2,
The adsorption plate,
Plate negative pressure flow path for providing a suction force to the object to be processed; is configured therein,
At least one plate negative pressure groove in the upper portion that the processing object is in contact; is formed,
The plate negative pressure flow path is connected to the plate negative pressure groove from the negative pressure pipe connecting groove of the coupling portion.
The method of claim 2,
The rotating part,
An upper rotating body including a plate coupling groove into which the coupling part is inserted;
A lower rotating body connected to a lower portion of the upper rotating body;
A rotating pulley coupled to a lower portion of the lower rotating body, the rotating force transmitting means being connected to rotate the lower rotating body according to the driving of the driving unit; And
And a rotary joint having one end of the rotary body sound pressure pipe inserted into the plate coupling groove and configured with a negative pressure supply part at one side thereof.
The method of claim 4, wherein
The upper rotating body,
A plate detachment member in the plate coupling groove;
The coupling part,
Rotary table, characterized in that configured to be fitted to the plate detachable member.
The method of claim 4, wherein
The lower rotating body,
A negative pressure pipe support member having a rotary body sound pressure passage formed therein, one end of the rotary body sound pressure pipe connected to an upper portion, and one end of the rotary joint connected to a lower portion thereof; And
And a support member fixing body fixed to a circumference of the negative pressure pipe support member and coupled to an inner step of the lower rotating body.
The method according to any one of claims 4 to 6,
And an air discharge passage through which the internal air compressed by the rotation of the rotary unit is discharged to the body portion.
The method of claim 7, wherein
The air discharge passage,
Rotary table, characterized in that formed in multiple stages bent.
The method of claim 7, wherein
The upper rotating body,
And a first step for guiding internal air generated by the rotation of the upper and lower rotors to the outside.
The lower rotating body,
And a second step that is formed to correspond to a portion of the first step and is coupled to the first step.
The method of claim 7, wherein
The body portion,
And an upper body cover positioned on a lower side of the upper rotating body and the side of the lower rotating body.
The upper cover of the body,
A third step corresponding to the shape of the first step and the second step;
And a body housing coupled to the upper body cover and inserted into a portion of the lower rotating body to rotate therein.
The body housing,
And a fourth step corresponding to the shape of the first step.

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