JP2008221098A - Automatic coating apparatus and coating booth - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the defect ratio of coated materials by realizing the miniaturization of an automatic coating apparatus, certainly supporting it in a stable posture and an arrangement for disturbing no air flow in a coating chamber. <P>SOLUTION: The automatic coating apparatus 1 is provided with, as an integrated unit, a work table 9 rotatably supporting a work W in a horizontal direction, a rotation driving mechanism 11 for the work table 9, a work transfer-support device 3 provided with a revolving table 17 holding the work table 9 and the rotation driving mechanism 11 and revolving 180° and 180° in a normal direction F and a reverse direction R between a working position 13 and a supplying-taking out position 15, and a swivel driving mechanism 19 of the revolving table 17, a robot for coating 5 automatically coating the surface of the work W set on the work table 9 in three dimensions, and a supporting stand 7 of low center of gravity which supports the work transfer-support device 3 and the robot for coating 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automatic painting apparatus capable of carrying in and out of a work and automatic painting of a work surface, and a painting booth equipped with the automatic painting apparatus. The present invention relates to an automatic painting apparatus and a painting booth that improve quality.

As shown in FIG. 6, the conventional automatic coating apparatus 101 includes a workpiece transfer / support apparatus 103 and a painting robot 105 provided separately. Of these, the painting robot 105 is attached to a support frame 111 having a rectangular frame structure with a height of about 2230 mm in which a bridge-shaped support base 109 is bridged above four tall pillars 107 as shown in the figure. It was done.
Further, the painting robot 105 is mounted in a sideways posture with the base surface 113 held vertically, and the operating range of the robot arm 115 of the painting robot 105 is extremely wide from the lower part to the upper part of the painting chamber 117. Ranged.

On the other hand, as the workpiece transfer / support device 103, the workpiece W can be rotated freely with respect to a V-shaped shuttle type slide table in plan view, a rotary table 119 that can switch between a work position and a supply / removal position of the workpiece. An apparatus having a structure in which a work table 121 to be supported is attached has been used.
Two work tables 121 are provided, and the power transmitted to the two work tables 121 is supplied by a single rotational drive motor 123 provided at the base of the work conveying / supporting device 103. It was.

Further, the automatic painting apparatus 101 configured as described above is arranged in a sealed painting chamber 117 as shown in FIG. 6, and a ventilation device 125 that forms an air flow as shown by an arrow in the drawing in the painting chamber 117. The paint booth 131 is configured together with the overspray paint collecting device 127 that collects the overspray paint in the painting chamber 117.
The painting robot 105 is mounted at an unstable and extremely high position as shown in the drawing, and the position is close to the air A outlet port 133 in the ventilation device 125, so that the robot arm 115 of the painting robot 105 is provided. The most part of was located in the area | region where the said air A flows.

However, the configuration in which the workpiece transfer / support device 103 and the painting robot 105 are provided separately and the painting robot 105 is supported by the support frame 111 having a large rectangular frame structure leads to an increase in the size of the automatic painting device 101, and the painting chamber. The occupied volume of the automatic coating apparatus 101 in 117 is increased. In addition, the configuration in which the painting robot 105 is mounted on the support platform 111 in a laterally tilted posture using the tall support platform 111 makes the support state of the painting robot 105 unstable, The operating range of the robot arm 115 is increased.
Therefore, when the painting robot 105 having such a configuration is operated, vibration is generated to make it easy for dust or dust floating in the painting chamber 117 to adhere to the workpiece W, or to reduce the flow of air A in the painting chamber 117. Disturbed to cause uneven coating and the like, and a high coating defect rate of 15 to 20% was generated.

The present invention has been made based on such points, and the object of the present invention is to reduce the size of the apparatus by integrating the work conveying / supporting apparatus and the painting robot, and with a stable posture of the apparatus. An object of the present invention is to provide an automatic painting apparatus capable of realizing reliable support and an arrangement that does not disturb the airflow in the painting chamber, and to significantly reduce the defective rate of painting, and a painting booth equipped with the automatic painting apparatus.

  In order to achieve the above object, an automatic coating apparatus according to claim 1 of the present invention comprises a work table that rotatably supports a work in a horizontal direction, a rotation drive mechanism for the work table, and the work table and the rotation drive mechanism. A work transporting / supporting device comprising: a turning table that holds and turns in a forward rotation direction and a reverse rotation direction by 180 ° between a work position and a supply / removal position; and a rotation driving mechanism for the turning table; A painting robot for automatically three-dimensionally painting the surface of a workpiece set thereon, and a support frame for supporting the workpiece transfer / support device and the painting robot are provided as an integral unit. To do.

  According to a second aspect of the present invention, there is provided the automatic coating apparatus according to the first aspect, wherein the swivel table is narrowly disposed horizontally so as to extend linearly toward the working position and the supply / removal position. It is composed of a long frame member, and two sets of work tables and rotation drive mechanisms are provided, one set at each end of the swivel table on the work position side and the supply / removal position side. It is characterized by being.

  The automatic painting apparatus according to claim 3 is the automatic painting apparatus according to claim 1 or 2, wherein the turning drive mechanism is a turning drive motor, and a turning drive speed reducer connected to the output shaft of the turning drive motor. , A transmission gear attached to the output shaft of the turning drive reduction gear, a ring-shaped gear meshing with the transmission gear, a lower end attached to the ring-shaped gear, an upper end attached to the turning table and the support frame And a cylindrical hub that is rotatably fitted to the center column via a bearing.

  The automatic painting apparatus according to claim 4 is the automatic painting apparatus according to any one of claims 1 to 3, wherein the painting robot is a three-dimensional articulated industrial robot, The painting robot is mounted on a mounting base provided on an upper part of the support frame with a base surface leveled.

  An automatic painting apparatus according to claim 5 is the automatic painting apparatus according to any one of claims 1 to 4, wherein the painting robot is placed on the mounting base via a slide base that is slidable in the front-rear direction. It is characterized by being attached.

  According to a sixth aspect of the present invention, there is provided a painting booth including a sealed painting chamber, an automatic painting apparatus which is disposed in the painting chamber and carries in and out a workpiece and automatically coats the workpiece surface, and supplies air into the painting chamber. In the painting booth comprising: a ventilation device that forms an air flow in the painting chamber by exhausting; and an overspray paint collecting device that takes out and collects the overspray paint floating in the painting chamber outside the painting chamber. The automatic coating apparatus according to any one of claims 1 to 5 is applied.

  Further, the painting booth according to claim 7 is the painting booth according to claim 5, wherein the automatic painting apparatus is installed on a support stand erected on the floor surface of the painting chamber and is formed by the ventilation device. It is arrange | positioned in the position which does not disturb.

The following actions are obtained by the above means. First, by adopting an integrated automatic coating device in which the workpiece transfer / support device and the painting robot are supported on the same support frame, the automatic painting device can be made compact and the automatic painting device can be occupied in the painting chamber. The volume can be reduced.
In addition, since the support frame is employed and the painting robot is attached with the base surface level, the heavy painting robot can be supported in a stable position at a low position. Further, by supporting the painting robot in such a stable posture, the operating range of the robot arm of the painting robot can be reduced.
In addition, by interposing the slide base between the painting robot and the mounting base, it is possible to adjust the longitudinal position of the painting robot, and the longitudinal position of the painting robot can be adjusted according to the shape and size of the workpiece. By doing so, it is possible to secure a wide working area of the painting robot while maintaining a compact operating range of the robot arm.

In addition, by supporting the painting robot at a low position, obstacles near the air outlet of the painting room can be eliminated, the air flow is adjusted, and the robot arm of the painting robot collides with the painting robot in the operating range. A so-called laminar flow in which air flows along the outer shape of the painting robot is formed.
Further, the narrow and long shape of the swivel table contributes to the weight reduction of the swivel table and the reduction in the amount of paint adhering to the swivel table. In addition, by adopting a swivel drive mechanism that includes a cylindrical hub that is pivotally fitted to the center column of the support frame and a ring-shaped gear that is attached to the lower end of the cylindrical hub, it is compact and efficient for the swivel table. Power transmission is possible. Further, more complex control is possible by integrating the swivel table and the three-dimensional painting robot.
In addition, by applying the automatic painting equipment that performs the above operation to the painting booth, the space in the painting room can be used widely, and the automatic painting equipment installed on the support stand standing on the floor in the painting room can be arranged. By devising it, it is possible to maintain a good state without turbulence of the air flow in the painting chamber.

According to the automatic painting apparatus and the painting booth of the present invention, the work conveying / supporting apparatus and the painting robot can be integrated to reduce the size of the apparatus and improve the functionality of the apparatus. In addition, by adopting a low-center-of-gravity type compact support stand, it is possible to reliably support the workpiece transfer / support device and the painting robot in a stable posture, and to reduce the operating range of the robot arm of the painting robot. Therefore, the vibration that has conventionally occurred due to the support in an unstable posture or the like can be reduced, and the adhesion of dust and dust to the workpiece can be reduced.
Further, the painting robot can be installed at an optimum position according to the shape and size of the workpiece by adjusting the front and back positions of the painting robot using the slide base.
In addition, the low-center-of-gravity and compact structure of the automatic painting equipment makes it possible to use the space in the painting room widely, and the layout of the automatic painting equipment has been devised to maintain the air rectification state in the painting room. Reduce the defective rate of painting that was caused by. In addition, the overspray paint does not adhere to or is sucked by the worker, and does not adhere much to the automatic painting apparatus or the like, so that it can be recovered safely and the ventilation in the painting chamber is kept in good condition.

The best mode for carrying out the present invention will be described below by taking the illustrated embodiment as an example. 1 is a side sectional view showing a painting booth of the present invention, FIG. 2 is a plan view showing the painting booth of the present invention, FIG. 3 is a side sectional view showing an automatic painting apparatus of the present invention, and FIG. 4 is an automatic painting of the present invention. FIG. 5 is a rear view showing the automatic coating apparatus of the present invention, FIG. 6 is an enlarged side sectional view showing the periphery of the base portion of the automatic coating apparatus of the present invention, and FIG. FIG. 8 is a side sectional view showing a conventional painting booth. FIG. 8 is an enlarged plan view showing the periphery of the base portion of the painting apparatus.
In the following explanation, first, the description will focus on the configuration of the automatic coating apparatus of the present invention, then the other configuration of the coating booth other than the automatic coating apparatus will be described, and then the coating performed using the coating booth. The operation and effect of the automatic painting apparatus and painting booth of the present invention will be described according to the work flow.

The automatic coating apparatus 1 according to the present invention is configured by including a work conveying / supporting apparatus 3, a painting robot 5, and a support frame 7 as an integrated unit.
The work transporting / supporting device 3 holds a work table 9 that rotatably supports the work W in the horizontal direction, a rotation drive mechanism 11 of the work table 9, and the work table 9 and the rotation drive mechanism 11, and a work position. 13 and a turning table 17 that turns in the normal rotation direction F and the reverse direction R by 180 ° between the supply / takeout position 15 and a turning drive mechanism 19 for the turning table 17.

The work table 9 is a plate-like member having a square shape in plan view with a side length of about 500 mm that can withstand a load of about 30 kg. A rotation shaft 21 extends downward in the vertical direction at the center of the work table 9, and is supported rotatably with respect to the turning table 17 via a bearing 23.
The rotational drive mechanism 11 includes a rotational drive motor 25 and a rotational drive speed reducer 27 connected to the output shaft of the rotational drive motor 25, and the rotational drive motor 25 decelerated by the rotational drive speed reducer 27. Is transmitted to the rotating shaft 21 of the work table 9.

The swivel table 17 is configured by a narrow and long rectangular frame-shaped frame member disposed horizontally so as to extend linearly toward the work position 13 and the supply / removal position 15.
Two sets of the work table 9 and the rotation drive mechanism 11 are provided at each end of the turning table 17 on the work position 13 side and the supply / removal position 15 side.
In addition, a seat plate portion 29 that is somewhat wide and formed in a polygonal shape in plan view is provided at the center portion of the turning table 17, and a center column 31 in the support frame 7 described later is provided at the center of the seat plate portion 29. A receiving opening 33 is formed to receive the.

The turning drive mechanism 19 includes a turning drive motor 35, a turning drive speed reducer 37 connected to the output shaft of the turning drive motor 35, and a spur gear as an example attached to the output shaft of the turning drive speed reducer 37. As an example, the transmission gear 39 includes a ring-shaped gear 41 formed of a spur gear meshing with the transmission gear 39, and a cylindrical hub 43 having a lower end attached to the ring-shaped gear 41 and an upper end attached to the turning table 17. Yes.
Further, the cylindrical hub 43 is provided in a state in which the cylindrical hub 43 is rotatably fitted to a peripheral body portion of the center column 31 of the support gantry 7 which will be described later via upper and lower two-stage bearings 45, 45.

The painting robot 5 is a robot that three-dimensionally paints the surface of the workpiece W set on the work table 9, and is constituted by a 6-axis, three-dimensional articulated industrial robot as an example.
The painting robot 5 includes a base 47, a three-node robot arm 49 extending from the base 47, an arm drive motor 51 for driving the robot arm 49, and a spray nozzle 53 attached to the tip of the robot arm 49. A paint supply means (not shown) for supplying the paint P to the spray nozzle 53, an air supply means (not shown) for supplying the spray nozzle 53 with the air for spraying the paint P, and the robot arm 49 are set in advance. A control box (not shown) that is operated in accordance with an operating program that is provided.

  Further, a slide base 91 slidable in the front-rear direction X is provided between the base portion 47 and the mounting base 55 of the support frame 7 described below. The slide base 91 is a rectangular flat plate member that is slightly smaller than the mounting base 55, and four elongated holes 92 extending in the front-rear direction X are formed in each corner portion. A support block 93 is provided at the end of the upper surface of the slide base 91 on the work position 13 side, and a long set bolt 94 extending horizontally to the work position 13 side is fixed to the support block 93. .

On the other hand, the mounting base 55 is provided with four screw holes 95 at positions corresponding to the long holes 92, and is fixed by being screwed with fixing bolts 98 inserted from the slide base 91 side. Yes. A support bracket 96 is provided at the end of the upper surface of the mounting base 55 on the work position 13 side, and a through hole (not shown) for receiving the set bolt 94 is formed in the support bracket 96. The slide base 91 is fixed to the mounting base 55 via a set bolt 94 by two lock nuts 97 provided so as to sandwich 96.
Note that the longitudinal position of the coating robot 5 can be adjusted in the range of about 200 mm by the long hole 92.

The support frame 7 includes a cylindrical center column 31, a rectangular flat plate mounting base 55 mounted on the upper surface of the center column 31, a flat mounting base 57 mounted on the lower surface of the center column 31, and the center column. And a mounting bracket 59 for the turning drive mechanism 19 provided so as to project to the supply / removal position 15 side in a part of the peripheral body portion of 31.
Further, the height of the support frame 7 is about 800 mm, which is considerably lower than that of the conventional support frame 111 having a height of about 2230 mm, and the support frame 7 has a low center of gravity structure.

  As shown in FIG. 1, such an automatic coating apparatus 1 uses anchor bolts 69 or the like on a floor surface 67 in the vicinity of the door 65 on the supply / extraction port side of the coating chamber 63 as a part of the coating booth 61 of the present invention. Is fixed. The painting booth 61 of the present invention is coated by sealing the coating chamber 63, the automatic coating apparatus 1 of the present invention disposed in the coating chamber 63, and supplying and exhausting air A into the coating chamber 63. A ventilation device 71 that forms an air flow of air A in the chamber 63 and an overspray paint recovery device 73 that takes out and recovers the overspray paint P floating in the paint chamber 63 outside the paint chamber 63 are provided. .

Among these, the ventilator 71 is connected to the upper surface of the painting chamber 63, the jumper box 77 connected to the upper portion of the coating chamber 63, and the jumper box 77. A filter 79 installed on the lower surface, a venturi 81 provided at the bottom on the back side of the coating chamber 63, and an exhaust blower provided on the back side of the coating chamber 63 above the eliminator 83 in the paint mist recovery device 73 described below. And a unit 85.
The supply flow rate of the supply blower unit 75 and the exhaust flow rate of the exhaust blower unit 85 are both set to 180 m3 / min to 250 m3 / min.

The overspray paint recovery device 73 includes an eliminator 83 that captures the overspray paint P that has flowed in through the venturi 81 and allows only air A to escape upward, and a storage tank 87 that stores the recovered paint P.
The eliminator 83 is provided with a plurality of inclined plates 89 arranged in an up-down direction in a zigzag manner. The paint P flowing into the eliminator 83 is captured by these inclined plates 89, and the top of the inclined plate 89 is captured. The coating material P captured by the flowing water is poured into the lower storage tank 87 together with the water.

Next, the automatic coating apparatus 1 and the coating booth 61 according to the present invention are used in accordance with the flow of work when performing the three-dimensional automatic coating on the surface of the workpiece W using the automatic coating apparatus 1 and the coating booth 61 configured as described above. The operation and effect of will be described.
First, the ventilation device 71 and the overspray paint recovery device 73 are activated, and an airflow is formed by the air A in the coating chamber 63. Then, the door 65 on the front surface of the painting chamber 63 is opened, and the work W is set on the work table 9 located at the supply / removal position 15. Next, when the automatic coating apparatus 1 is started, the rotation of the turning drive motor 35 is transmitted to the turning drive speed reducer 37, the transmission gear 39, the ring gear 41, the cylindrical hub 43, and the turning table 17 so that the turning table 17 is rotated 180 °. Turn in the forward direction F.

As the turning table 17 turns, the workpiece W set on the work table 9 moves to the work position 13, the robot arm 49 of the painting robot 5 starts operating, and from the spray nozzle 53 at the tip of the robot arm 49. The paint P is sprayed in the form of a mist, and the three-dimensional automatic painting of the surface of the workpiece W is executed.
In addition, an empty work table 9 originally located at the work position 13 is located at the supply / removal position 15, and the next work W is set on the work table 9.

A part of the coating P sprayed from the spray nozzle 53 becomes the overspray coating P and floats in the coating chamber 63, but the air is constantly supplied from the air supply blower unit 75 to the coating chamber 63 at the predetermined flow rate. A is supplied, and the air A is exhausted at a predetermined flow rate from the exhaust blower unit 85, so that an airflow is forcibly formed. Then, the overspray paint P is carried in the air current through the venturi 81 into the eliminator 83.
Further, the overspray paint P does not drift to the supply / removal position 15 side due to the air flow, and the suction and adhesion of the paint P to the worker is prevented at the same time.

Then, the overspray paint P that has flowed into the eliminator 83 is captured by the inclined plate 89, flows into the lower storage tank 87 together with the water flowing through the inclined plate 89, and is separated from the water for reuse. The
On the other hand, the air A passes through the eliminator 83, flows toward the upper exhaust blower unit 85, and is exhausted outside the coating chamber 63.

A part of the air current A formed in the painting chamber 63 passes through the operating range of the robot arm 49 of the painting robot 5 and collides with the robot arm 49. However, the laminar flow action described above is applied. Therefore, the turbulence of the air flow hardly occurs.
When the coating of the surface of the workpiece W is completed, the turning table 17 is turned 180 ° in the reverse direction R. As a result, the painted workpiece W is positioned at the supply / removal position 15, so that the workpiece W is removed from the workpiece table 9 and the next workpiece W is newly set on the workpiece table 9.

Further, the next workpiece W set during the painting operation is located at the work position 13, and the three-dimensional automatic painting of the surface of the workpiece W is executed in the same procedure as described above.
Hereinafter, by repeating the same operation, the three-dimensional automatic coating of the workpiece W can be continuously executed.

As described above, according to the present embodiment, the following effects can be obtained. First, by integrating the workpiece transfer / support device 3 and the painting robot 5, the size of the device can be reduced, and the functionality of the device can be improved. In addition, by adopting a low-center-of-gravity type compact support frame 7, the workpiece transfer / support device 3 and the painting robot 5 can be reliably supported in a stable posture, and the operating range of the robot arm 49 of the painting robot 5 can be increased. Since it can be reduced, vibration of the robot arm 49 that has conventionally occurred due to support in an unstable posture or the like can be reduced, and adhesion of dust and dust to the workpiece W can be reduced.
Further, the painting robot 5 can be installed at an optimum position according to the shape and size of the workpiece W by adjusting the front and rear positions of the painting robot 5 using the slide base 91.

  In addition, the automatic painting apparatus 1 having a low center of gravity and a compact structure allows the space in the painting chamber 63 to be widely used, and the arrangement of the automatic painting apparatus 1 is devised as in the above embodiment so that the interior of the painting chamber 63 can be used. The air A rectification state can be maintained. Therefore, the present embodiment succeeded in reducing the defective rate of the coating caused by the generation of turbulent flow from 15 to 20% to about 5% in the present embodiment. Further, the overspray paint P does not adhere to or is sucked by the worker, and does not adhere much to the automatic painting apparatus 1 or the like, and is safely collected, and the ventilation in the painting chamber 63 is kept in a good state.

  In addition, the automatic painting apparatus 1 and the painting booth 61 of this invention are not limited to the thing of said embodiment, The design change within the summary of the invention is possible. For example, the rotation angle of the work table 9 can be arbitrarily set in the range of 0 to 360 °. When the work table 9 is moved to the work position 13 after setting the work W, the work table 9 is rotated in accordance with the movement of the robot arm 49. When the work table 9 is moved to the supply / removal position 15, it can be selectively set so as not to rotate in consideration of the safety of the supply / removal work of the work W. The shape and size of the swivel table 17 are not limited to the shape and size of the above-described embodiment, and various shapes and sizes can be adopted. The work table 9 and the rotary drive mechanism 11 The number is not limited to two as in the above-described embodiment, but may be one, or three or more.

  INDUSTRIAL APPLICABILITY The present invention has applicability in the field of manufacturing, using, and the like of an automatic painting apparatus that can carry in and out a workpiece and three-dimensional automatic painting of the workpiece surface and a painting booth equipped with the automatic painting apparatus.

It is a figure which shows embodiment of this invention, and is sectional drawing which shows the coating booth of this invention. It is a figure which shows embodiment of this invention, and is a top view which shows the coating booth of this invention. It is a figure which shows embodiment of this invention, and is sectional drawing which shows the automatic coating apparatus of this invention. It is a figure which shows embodiment of this invention, and is a top view which shows the automatic coating apparatus of this invention. It is a figure which shows embodiment of this invention, and is a rear view which shows the automatic coating apparatus of this invention. It is a figure which shows embodiment of this invention, and is a sectional side view which expands and shows the base part periphery of the automatic coating apparatus of this invention. It is a figure which shows embodiment of this invention, and is a top view which expands and shows the base part periphery of the automatic coating apparatus of this invention. It is a figure which shows a prior art example, and is a sectional side view which shows the conventional painting booth.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic coating apparatus 3 Work conveyance / support apparatus 5 Coating robot 7 Support stand 9 Work table 11 Rotation drive mechanism 13 Work position 15 Supply / extraction position 17 Rotation table 19 Rotation drive mechanism 21 Rotation shaft 23 Bearing 25 Rotation drive motor 27 Rotation Drive speed reducer 29 Seat plate portion 31 Center column 33 Receiving opening 35 Turning drive motor 37 Turning drive speed reducer 39 Transmission gear 41 Ring-shaped gear 43 Cylindrical hub 45 Bearing 47 Base 49 Robot arm 51 Arm drive motor 53 Spray nozzle 55 Mounting base 57 Installation base 59 Mounting bracket 61 Painting booth 63 Painting chamber 65 Door 67 Floor 69 Anchor bolt 71 Ventilation device 73 Overspray paint recovery device 75 Air supply blower unit 77 Jumper box 79 Filter 81 Venturi 83 Eliminator 85 Exhaust blower unit 87 Reservoir 89 Inclined plate 91 Sliding base 92 Long hole 93 Support block 94 Set bolt 95 Screw hole 96 Support bracket 97 Lock nut 98 Fixing bolt W Work F Forward direction R Reverse direction P Paint (Overspray) paint)
A Air X Longitudinal direction

Claims (7)

The work table that supports the work so as to be rotatable in the horizontal direction, the rotation drive mechanism of the work table, and the work table and the rotation drive mechanism are held, and the work table is rotated by 180 ° between the work position and the supply / removal position. A work transporting / supporting device comprising a turning table that turns in a rolling direction and a reverse direction, and a turning drive mechanism for the turning table;
A painting robot for three-dimensionally painting the surface of the workpiece set on the work table;
A support frame for supporting the workpiece transfer / support device and the painting robot;
An automatic coating apparatus characterized by being provided as an integral unit.   The swivel table is composed of a narrow and long frame member arranged horizontally so as to extend linearly toward the work position and the supply / removal position. 2. The automatic coating apparatus according to claim 1, wherein two sets of work tables and a rotation drive mechanism are provided at each end on the supply / removal position side, one set each.   The turning drive mechanism includes a turning drive motor, a turning drive speed reducer connected to the output shaft of the turning drive motor, a transmission gear attached to the output shaft of the turning drive speed reducer, and a ring meshing with the transmission gear And a cylindrical hub having a lower end attached to the ring gear and an upper end attached to the turning table and fitted to the center column of the support frame so as to be turnable via a bearing. The automatic coating apparatus according to claim 1 or 2, wherein   The painting robot is constituted by a three-dimensional articulated industrial robot, and the painting robot is mounted on a mounting base provided on the upper part of the support frame with the base surface horizontal. The automatic coating apparatus according to any one of claims 1 to 3, wherein the automatic coating apparatus is provided.   The automatic painting apparatus according to any one of claims 1 to 4, wherein the painting robot is mounted on the mounting base via a slide base that is slidable in the front-rear direction.   A closed coating chamber, an automatic coating device that is placed in the coating chamber and carries in and out the workpiece and automatically coats the surface of the workpiece, and air is supplied to and exhausted from the coating chamber. In the painting booth provided with the ventilation apparatus to form and the overspray paint collection | recovery apparatus which takes out and collect | recovers the overspray paint which floats in the painting chamber out of the painting chamber, any one of Claims 1-5 as said automatic coating apparatus A painting booth characterized by applying the automatic painting equipment described in Crab.   7. The painting booth according to claim 6, wherein the automatic painting device is installed on a support stand standing on a floor surface in a painting room and is arranged at a position not disturbing an air flow formed by the ventilation device.

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