JP2513129Y2 - Automatic painting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an automatic coating apparatus for coating the outer shape of a work such as an automobile body.

[Prior Art] Automatic coating of the upper surface of a work by spraying paint from a coating machine unit mounted on a support so as to be movable in multiple axial directions toward a lower work that moves relative to the coating machine unit. Coating equipment is known. As shown in FIG. 4, such an automatic coating apparatus has a multi-axis directional motion, for example, an orthogonal 3-axis directional motion, and a 5-axis directional motion including a swing / tilt motion in order to cope with a complicated work shape. There are many things that are done.

In FIG. 4, reference numeral 1 is a support (supports 2, 2, reinforcing frame 3). The support 1 includes a coating machine section 11 which can move in three axial directions, a lifting drive means 21 for raising and lowering the coating machine section 11 in the Y-axis direction (vertical direction in the figure), and the entire apparatus in the Z-axis direction (see FIG. Tracking means 41 and the like for performing tracking in the direction perpendicular to the middle paper surface) are provided.

Here, the coating machine section 11 is provided on the support 1 so as to be able to move up and down, and is connected to a main body 13 and a tilt box connected to the main body 13 so as to be swingable in the arrow R direction and tiltable in the arrow C direction. 16 and a plurality of coating machines 17 mounted on the tilt box 16 so as to be able to move in the X-axis direction.

The lifting drive means 21 includes a drive sprocket 22, a chain 23, a balance weight 24, and a lifting motor 25 for suspending the coating machine unit 11 so as to be lifted and lowered. The elevating and lowering drive means 21 drives the elevating and lowering motor 25 to normally or reversely rotate the drive sprocket 22 via the sprockets 26, 27 and the chain 28, thereby raising or lowering the coating machine section 11, and any It is configured to stop at the position.

Further, the tracking means 41 includes a guide rail 42 laid on the floor surface 52, wheels 43 for rolling on the rail 42 and tracking the entire apparatus in the Z-axis direction.

[Problems to be solved by the invention] By the way, in the above-mentioned automatic coating apparatus, since the entire apparatus is tracked, the floor surface 52 (especially the guide rail) is
The floor surface 52 on which 42 is laid must be constructed flatly and firmly, which has the drawback of requiring much labor and cost to install this device. In addition, the tracking means 41 reduces the operation space near the floor surface 52.

Therefore, in order to solve such a drawback, an automatic coating device having a tracking function in the coating machine section 11 is being used as soon as it is put into practical use.
No. 960).

As shown in FIG. 5, the coating machine section 11 of such an automatic coating apparatus has an elevating rail 12 which is connected to an elevating and lowering drive means 21 and is vertically moved in the Y-axis direction. Tracking is performed in the Z-axis direction (direction perpendicular to the paper surface in the figure). Here, the lifting rail 12 is mounted on the main body 13 by the Z
It is heavy because it is extended in the same direction for tracking in the axial direction. Therefore, the coating machine section 11 becomes considerably heavy due to the addition of the lifting rail 12. As a result, a considerable amount of power is required to raise and lower the coating machine section 11 by the lifting drive means 21, and the lifting drive means 21
(As a result, the support 1 that supports both) becomes large and heavy.

As described above, when the automatic coating device is large and heavy (for example, 5 to 8 tons), the air flow may be obstructed by the coating machine portion 11 or the like during coating, and the coating quality is likely to deteriorate. Further, since the coating machine unit 11 is moved in the five axial directions, the position control becomes complicated and the software load increases.

In view of the above-mentioned circumstances, an object of the present invention is to provide an automatic coating apparatus which can be downsized and lightened and can simplify the movement of the coating machine section to easily perform position control.

[Means for Solving the Problem] The present invention is directed to spraying a paint from a coating machine unit mounted on a support body so as to be movable in multiple axial directions toward a lower workpiece that moves relative to the coating machine unit. In an automatic coating apparatus for coating an upper surface portion, a follow-up rail having a shape corresponding to the relative movement direction shape of the upper surface portion of the work is provided, and the coating machine section is attached to the follow-up rail so as to be trackable. Characterize.

[Operation] In the present invention, when the coating machine section is tracked and moved relative to the upper surface of the work, the coating machine section moves up and down along the outer shape of the upper surface of the work while being guided by the follower rail. At this time, since the coating machine section is supported by the follow-up rail,
The conventional lifting and lowering means for heavy objects (balance weight, lifting motor, etc.) is unnecessary. Therefore, it is possible to dramatically reduce the size and weight.

Further, when the coating machine section is tracked, the position is controlled in the up-down direction (Y-axis direction) by the follow-up rail, so that the movement is simplified. For this reason, the position control of the coating machine unit is facilitated, and the software load is reduced.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the automatic coating apparatus according to this embodiment can simultaneously perform tracking and lifting of the coating machine unit 11 by using the follow-up rail 31 having a shape corresponding to the outer shape of the work W. It is formed as follows.

Specifically, the automatic coating device includes a support 1 (support 2),
The coating machine section 11 and the follow-up rail 31 are included.

The same components as those shown in FIGS. 4 and 5 are designated by the same reference numerals, and the description thereof will be omitted or simplified.

Here, the follow-up rail 31 is means for mechanically following the shape of the upper surface portion of the work W when holding the coating machine portion 11 and moving it relative to the upper surface portion of the work W. In particular,
The follow-up rail 31 has a shape corresponding to the shape of the relative movement direction of the upper surface portion of the work W, and is provided between the columns 2 and 2. In particular, in this embodiment, the follow-up rail 31 is shaped to follow the shape of the workpiece W in the longitudinal direction. The main body 13 of the coater unit 11 is attached to the follow-up rail 31 via three positioning rollers 19 so as to be trackable in the longitudinal direction (Z-axis direction) of the work W.

It should be noted that each coating machine 17 is provided so as to be expandable / contractible in order to finely adjust the position in the Y-axis direction more accurately.

 Next, the operation will be described.

When the work (car body) W is transported to the installation location of the automatic coating device via the transport carriage 51, the coating machine section 11
Are tracked in the Z-axis direction. Then, the coating machine section 11
While being supported by the follow-up rail 31, it moves up and down according to the shape of the workpiece W in the longitudinal direction. At this time, the height position is finely adjusted by appropriately expanding and contracting each of the coating machines 17 in the Y-axis direction. Also, each coating machine
Swing 17 (R direction), tilt (C direction), and width (X direction)
The direction is controlled so that the work W can be uniformly coated. In addition, this automatic coating device is not equipped with the conventional lifting drive means (21) for heavy objects (balance weight (24), lifting motor (25), etc.), and is designed to be compact and lightweight. Therefore, the coating machine section 11 and the like do not hinder the flow of air. As a result, the upper surface of the work W is uniformly coated by each coating machine 17.

Therefore, according to this embodiment, the follower rail 31 having a shape corresponding to the longitudinal shape of the upper surface of the work W is provided, and the coating machine section 11 is attached to the follower rail 31 so as to be trackable. Therefore, the size and weight can be reduced, and the movement of the coating machine unit 11 can be simplified to facilitate the position control. In addition, this automatic coating device is
Since it is lightweight, the floor surface 52 for installing the device is
Does not need to be particularly strong. Therefore, the automatic coating device can be installed easily and inexpensively.

Note that, as shown in FIG. 3, the automatic coating device may be configured so that the tracking of the coating machine unit 11 is performed by using the tracking frame 47 suspended from the ceiling via the guide rail 45 and the wheels 46. With such a configuration, it is convenient that the operation space particularly near the floor surface 52 can be dramatically expanded. Further, the work W can be coated while being conveyed by a conveyor (not shown). That is, the work W can be coated smoothly by moving the tracking frame 47 in the Z-axis direction in accordance with the conveyance of the work W and moving the coating machine unit 11 up and down along the follower rail 31. Further, even if the work W has a long or short painted portion as in the case of a light automobile body or a normal automobile body, it is possible to cope with it by performing the painting work while moving the tracking frame 47 in the Z-axis direction as appropriate. You can

[Advantages of the Invention] According to the present invention, there is provided an automatic coating device for spraying paint from a coating machine section onto a lower work that moves relative to the coating machine section to coat the upper surface of the work. Since the follower rail having a shape corresponding to the shape of the relative movement of the upper surface portion is provided, and the coating machine portion is mounted on the follower rail so as to be trackable, the lifting / lowering drive means (balance balance) as in the conventional case Weights, lifting motors, etc.) are not required. Therefore, it is possible to reduce the size and weight, and to simplify the movement of the coating machine section to facilitate the position control.

[Brief description of drawings]

1 to 3 are views showing an embodiment of the present invention, FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a front view showing a modified example. 4 and 5 are views showing a conventional automatic coating apparatus, respectively. 1 ... Support, 11 ... Coating machine part, 31 ... Follow-up rail.

Claims (1)

(57) [Scope of utility model registration request] Claim: What is claimed is: 1. An automatic coating device for coating the upper surface of a work by spraying paint from a coating machine mounted on a support so as to be movable in multiple axial directions toward a lower work that moves relative to the coating machine. The automatic coating apparatus according to claim 1, further comprising a follow-up rail having a shape corresponding to the shape of the relative movement direction of the upper surface of the work, and the coating machine unit being attached to the follow-up rail so as to be trackable.