JPH0621762U - Automatic painting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To enable the work to be selectively coated on a flat surface or a curved surface without complicating the structure and improving the coating quality. [Structure] A coating gun (11) movably provided in at least two orthogonal axes and a curved follower rail (21) having a curved shape corresponding to a curved surface coating portion of a work.
When there is a curved surface coating command, the coating gun (11) is connected so as to be able to follow the curved follower rail (21), and when there is a planar coating command, the coating gun (11) is set to a predetermined position. Paint gun (1
1) and a switching drive control means (30) for releasing the connection state between the curved follower rail (21).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automatic painting apparatus capable of selectively painting a work such as a vehicle (for example, a train car body) on a flat surface or a curved surface.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, for example, a coating gun capable of spraying paint is horizontally moved to coat a painted portion of a work such as a train body. At this time, if the work to be coated has a curved surface and the curvature is not large, the coating gun is often moved horizontally without special lifting control.

[0003]

[Problems to be solved by the device]

 By the way, as described above, when the work to be coated has a curved surface and if the coating gun is moved horizontally only to perform coating, the gap between the gun and the coating is not constant and the coating film is uniform. It is easy to cause a situation (uneven coating) that is not realized. The occurrence of such a situation cannot be overlooked nowadays when further improvement in coating quality is required.

Therefore, in order to prevent the coating unevenness from occurring, when coating a curved surface-shaped portion to be coated, the coating gun is vertically controlled so that the interval between the coating portion and the coating portion is constant. However, it is necessary to provide a lifting motor and a motor drive control circuit, which complicates the structure.

In view of the above circumstances, an object of the present invention is to provide an automatic coating apparatus capable of selectively coating a work on a flat surface or a curved surface without complicating the structure and improving the coating quality. To do.

[0006]

An automatic coating device according to the present invention is a coating gun provided so as to be movable in at least two orthogonal directions, and a curve having a curved shape corresponding to a curved surface coating portion of a work. The shape-following rail and the paint gun are connected so that they can follow the curved follow-up rail when there is a curved surface coating command, and the coating gun can move linearly in a predetermined uniaxial direction when there is a planar coating command. As described above, the switching drive control means for releasing the connection state between the coating gun and the curved follow-up rail is provided.

[0007]

[Action]

 In the automatic coating apparatus having the above-mentioned configuration, the switching drive control means connects the coating gun so that the coating gun can follow the curved following rail based on the curved surface painting command. In this state, when the coating gun is made to follow the curved follow-up rail, the coating gun moves in a curved line along the curved coated portion of the work and coats that portion. Therefore, the curved surface of the work to be coated is coated with a constant distance from the coating gun, and uneven coating does not occur. In this way, the work can be coated on the curved surface with good coating quality without controlling the elevation of the coating gun using a special lifting motor or the like.

Further, the switching drive control means releases the connection state between the coating gun and the curved follow-up rail so that the coating gun can linearly move in a predetermined uniaxial direction based on the planar coating command. In this state, the work can be coated flat by moving the coating gun in a straight line.

As a result, the work can be selectively coated on the flat surface and the curved surface without complicating the structure and while improving the coating quality.

[0010]

【Example】

 FIG. 1 is a side view showing an essential part of an embodiment of the present invention, FIG. 2 is a view for explaining a positional relationship between an arcuate rail and a switching drive control means, and FIG. 3 is an electronic configuration of the embodiment. It is a block diagram for explaining.

An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the automatic coating apparatus according to this embodiment includes a coating spray section 10 having a coating gun 11, a curved follower rail (21), a horizontal traveling rail 25 and a switching drive control means 30. It is configured to include.

Here, the paint spraying unit 10 is a component that sprays paint. In this embodiment, the coating spray section 10 includes a coating gun 11, a traveling plate 12 and an elevating frame 13 as shown in FIGS. The traveling plate 12 is provided on the horizontal traveling rails 25, 25 via a plurality of horizontal traveling rollers 14a and a pair of supporting rollers 14b, 14b so as to be movable in the X-axis direction (left-right direction in FIG. 2). . Each horizontal traveling roller 14a is rotatably supported on the back surface of the traveling plate 12 via a mounting portion 14d so as to be rollable on the horizontal traveling rail 25. The pair of support rollers 14b, 14b are rotatably supported on the back surface of the traveling plate 12 via the mounting portions 14d so that they can roll while sandwiching the horizontal traveling rail 25.

The elevating frame 13 is provided on the traveling plate 12 via a plurality of elevating traveling rollers 15a and a pair of supporting rollers 15b, 15b so as to be movable in the Z-axis direction (vertical direction in FIG. 1). Has been. Each elevating traveling roller 15a is rotatably supported on the front surface of the traveling plate 12 via a mounting portion 15d so as to be capable of rolling contact with the side surface portion of the elevating frame 13. The pair of support rollers 15b, 15b are rotatably supported on the front surface of the traveling plate 12 via the mounting portions 15d so that they can roll while sandwiching the elevating frame 13. Further, the coating gun 11 is formed so as to be capable of spraying paint, and in this embodiment, it is detachably attached to the lower end portion of the elevating frame 13 in FIG. The coating spray unit 10 is configured to be moved and driven in the X-axis direction by a driving unit (not shown).

Further, the curved follower rail (21) is configured to have a curved shape corresponding to the curved surface (bow shape in the present embodiment) of the coated portion Wa of the work W. In the present embodiment, the curved follower rail is formed by a bow-shaped rail 21 formed in a bow shape. The bow rail 21 is installed so as to extend in the X-axis direction, as shown in FIG.

Further, the switching drive control means 30 connects the coating gun 11 so as to be able to follow the curved follower rail (21) when there is a curved surface coating command, and when there is a plane coating command. Is means for releasing the connection state between the coating gun 11 and the curved follower rail (21) so that the coating gun 11 can be linearly moved in a predetermined uniaxial direction (X axis direction in this embodiment).

In the present embodiment, the switching drive control means 30 is composed of a switching drive unit 31 and a control unit (41, 45). The switching drive unit 31 is formed so that the coating gun 11 can be connected and released so as to follow the arcuate rail 21 and can be released. More specifically, the switching drive unit 31 includes a switching air cylinder 32, a switching lever 34, and a follow-up roller 36. The switching lever 34 is rotatably provided on the elevating frame 13 via a supporting member 35. A follow-up roller 36 is rotatably supported at one end of the switching lever 34 so as to be able to come into contact with and separate from the arcuate rail 21. The piston rod 32 a of the switching air cylinder 32 is rotatably connected to the other end of the switching lever 34. The lower end of the switching air cylinder 33 in FIG. 1 is pivotally attached to the ascending / descending frame 13 via a mounting member 33.

Further, the control unit is connected so that the coating gun 11 can follow the arcuate rail 21 when a curved surface coating command is issued, and is connected to the coating gun 11 and an arcuate shape when there is a planar coating command. It is a means for controlling the switching drive means 31 so that the connection state with the rail 21 is released. In the present embodiment, as shown in FIG. 3, the control unit controls the control means 41 and an electropneumatic converter for supplying / stopping supply of pressurized air to the switching air cylinder 32 based on a switching command from the control means 41. It is formed of 45 or the like. The control means 41 is configured by utilizing a part of the function of a control device (not shown) that drives and controls the entire automatic coating device. In addition to the electro-pneumatic converter 45 described above, the control means 41 is connected to an operation panel 49 and the like which can input a curved surface coating command and a flat surface coating command. Then, when the piston rod 32a of the switching air cylinder 32 is retracted as shown in FIG. 1, the switching lever 34 is pulled by the rod 32a and positioned at the position shown by the solid line in the figure. As a result, the follow-up roller 36 is positioned at a position apart from the arcuate rail 21. In this way, when the follower roller 36 is separated from the arcuate rail 21, the elevating frame 13 contacts the stopper portion 12a formed at the lower end of the traveling plate 12 by its own weight, and the position is regulated in the Z-axis direction.

On the other hand, when the switching lever 34 is positioned at the position shown by the chain double-dashed line in FIG. 1 by projecting the piston rod 32 a of the switching air cylinder 32, the follower roller 36 comes into contact with the arcuate rail 21. In this way, when the follow-up roller 36 is in contact with the arcuate rail 21, the elevating frame 13 is lifted against its own weight and separated from the stopper portion 12a of the traveling plate 12. Therefore, by moving the paint spraying unit 10 in the X-axis direction, the coating gun 11 provided on the elevating frame 13 moves in an arc shape along the arcuate rail 21 via the follower roller 36 and the like. In FIG. 1, 26 is a frame for mounting the horizontal traveling rails 25, 25.

Next, the operation will be described. The switching drive control means 30 connects the coating gun 11 to the arcuate rail 21 so as to be able to follow the curved surface paint command based on the curved surface paint command input from the operation panel 49 (that is, the following roller 36 is brought into contact with the arcuate rail 21). .). In this state, when the paint spraying section 10 is made to follow along the arcuate rail 21, the coating gun 11 moves along the bow-shaped painted portion Wa of the work W and paints the painted portion Wa. Therefore, the coating portion Wa of the work W is coated with a constant gap between the coating gun 11 and the coating gun 11, and coating unevenness does not occur. As described above, the work W can be coated on the curved surface with good coating quality without controlling the elevation of the coating gun 11 by using a special lifting motor or the like.

Further, the switching drive control means 30 releases the connection state between the coating gun 11 and the arcuate rail 21 so that the coating gun 11 can linearly move in the X-axis direction based on the plane coating command (that is, The follower roller 36 is separated from the arcuate rail 21.). In this state, by linearly moving the coating gun 11, the work W can be coated on the surface.

As a result, the work W can be selectively coated on the flat surface and the curved surface without complicating the structure and while improving the coating quality.

[0022]

[Effect of device]

 According to the present invention, there are a coating gun provided so as to be movable in at least two orthogonal axis directions, a curved follower rail having a curved shape corresponding to a curved surface coating portion of a workpiece, and a curved surface coating command. In this case, the paint gun and the curved follow-up rail are connected so that they can follow the curved follow-up rail and when there is a planar painting command, the paint gun can be moved linearly in a predetermined uniaxial direction. Since it is equipped with a switching drive control means that releases the connection state with the, it is possible to coat the work surface on a curved surface without causing uneven coating etc. without controlling the coating gun up and down using a special lifting motor etc. You can As a result, the work can be selectively coated on the flat surface and the curved surface without complicating the structure and improving the coating quality.

[Brief description of drawings]

FIG. 1 is a side view showing an essential part of an embodiment of the present invention.

FIG. 2 is a diagram for explaining a relationship between an arcuate rail and a switching drive control unit according to an embodiment.

FIG. 3 is a block diagram for explaining an electronic configuration of an example.

[Explanation of symbols]

 11 Painting Gun 21 Bow Rail (Curved Tracking Rail) 30 Switching Drive Control Means

Claims (1)

[Scope of utility model registration request] 1. A coating gun movably provided in at least two orthogonal axis directions, a curved follower rail having a curved shape corresponding to a curved surface coating portion of a work, and a curved surface coating command when a curved surface coating command is issued. Is connected so that the coating gun can follow the curved follow-up rail, and when there is a planar painting command, the coating gun is connected to the curved follow-up rail so that the painting gun can move linearly in a predetermined uniaxial direction. An automatic coating apparatus, comprising: a switching drive control means for releasing the state.