JPH04114772A - Coating method of closing body and its coating device - Google Patents

Abstract

PURPOSE:To carry out coating freely in the periphery of a back side section of a closing body by changing the support from a striker section to a back face section except the striker section of the closing body by means of a back face supporting section after the completion of opening of the closing body by means of a striker supporting section and supporting the closing body. CONSTITUTION:A closing means provided with two supporting sections consisting of a striker supporting section 13 for supporting a striker section 16 of a closing body such as a bonnet hood 15 of a vehicle and a back face supporting section for opening the closing body by holding up the striker supporting section 13 and also supporting a back face section 14 of the opened closing body is used. The support is changed from the striker section 16 to the back face section except the striker section 16 of the closing body by the back face supporting section 14 after the completion of opening the closing body by means of the striker supporting section 13 and coating is applied to the periphery of back face section of the closing body. As a result, coating for the surface and back face of the closing body can be applied freely and also the coating for the neighborhood of the striker section can be applied without patching.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for painting opening and closing bodies such as automobile hoods, for example.

(Prior Art) For example, as shown in Japanese Utility Model Application Publication No. 61-75869, robotized automatic painting apparatuses have recently been used to paint the bodies of automobiles.

(Problem to be Solved by the Invention) By the way, when painting the above-mentioned car body using such a painting device, for example, it is necessary to paint the front and back surfaces of an opening/closing body such as a bonnet hood (and even the engine). There is a problem with how to paint the inside of the room.

For example, it is necessary to paint the outside surface of the bonnet hood, and at the same time, it is also necessary to paint at least the peripheral edge of the back side excluding the insulator mounting area, and the inside of the engine compartment with the bonnet hood open must be painted. Painting is also necessary.

Therefore, in order to carry out these processes continuously, after finishing painting the outer surface of the bonnet hood, first open the bonnet hood upwards and then paint the inner periphery while supporting the inside with a predetermined support member. It is also necessary to paint the inside of the engine room under the same conditions.

In that case, the abutting portion of the bonnet hood supported by the support member cannot necessarily be painted, so there is a drawback that it must be repaired at the end.

(Means for Solving the Problem) The inventions recited in claims 1 and 2 of the present application are both made for the purpose of solving the above-mentioned conventional problems, and each invention is a means for solving the problem as described below. It is configured with.

(1) Structure of the method for painting an opening/closing body according to the invention claimed in claim 1 The method for painting an opening/closing body according to the invention claimed in claim 1 comprises: The opening/closing means is equipped with two support parts: a back support part that lifts the striker support part upward to open the opening/closing body, and supports the back surface of the opened opening/closing body; After the opening of the opening/closing body is completed, the striker part of the opening/closing body is removed from the striker part by the back support part (the support point is changed to the back side to support the opening/closing body, and the periphery of the back side of the opening/closing body is painted with a coating means. It is configured as follows.

(2) Structure of the coating device for opening and closing bodies according to the invention as claimed in claim 2 The coating device for opening and closing bodies according to the invention as claimed in claim 2 comprises a striker support portion that supports a striker portion of an opening and closing body such as a bonnet foot of a vehicle; An opening/closing means comprising two support parts: a back surface support part that lifts the support part upward to open the opening/closing body and supports the rear surface of the opening/closing body between which the opening/closing body is opened; and the striker support part of the opening/closing means. After opening the opening/closing body, the support point of the opening/closing body should be moved from the striker part supported by the striker support part to the back part (excluding the striker part of the opening/closing body supported by the back support part). A support part moving means for moving the striker support part and the back surface support part, and a support point of the opening and closing body are moved from the striker part to the back surface of the opening and closing body, and the area around the back surface of the opening and closing body is painted. and a coating means.

(Function) (]) The coating method and coating apparatus for an opening/closing body of the invention as claimed in claims 1 and 2 include a striker support part that supports a striker part of an opening/closing body such as a bonnet hood of a vehicle, and a striker support part that supports the striker part in an upward direction. Lift the opening/closing body to open the opening/closing body (and use an opening/closing means equipped with two support parts, a back support part supporting the back side of the opening/closing body that is interposed, The supporting points are sequentially changed to paint the area around the back surface.

That is, in the coating method and coating apparatus for an opening/closing body of the present invention, the coating apparatus itself includes a striker support part that supports the striker part of the opening/closing body, and the striker support part is lifted to open the opening/closing body such as a bonnet hood, and the opening/closing body is opened. The opening/closing means is combined with a back support part that supports the back part, and after the opening/closing body is opened, the opening/closing body is supported from the striker support part of the opening/closing body to the back part other than the striker support part of the opening/closing body. The two sets of supporting parts are sequentially moved downward, and painting is carried out while changing the supporting points.

(Effects of the Invention) Therefore, according to the method and apparatus for painting an opening/closing body of the present invention, opening/closing bodies such as a bonnet hood can be reliably opened and closed, and the front and back surfaces of the opening/closing body and the inside of the engine room, etc. can be freely painted. At the same time, the area near the striker can be painted without any repairs.

Furthermore, since the opening/closing body support part can be painted while avoiding it, there is no need to clean the opening/closing body support part.

(Embodiment) FIGS. 1 to 5 show a method and a coating apparatus for coating an opening/closing body such as a vehicle bonnet and h according to an embodiment of the present invention.

First, FIG. 1 shows the system configuration of an automobile painting line that employs the opening/closing body coating apparatus that implements the above-mentioned opening/closing body painting method.

The automobile painting line 1 includes a total of 16 various painting work openings (2a to 2h, 3a to 3h), four on each side of the car body conveyance direction (a) to be painted, and a painting system. is configured.

That is, first of all, there are
Right trunk opening/closing robot 2a, right front door 5F
DR interior plate painting lohot 2b, right front door 5F
DR opening/closing robot 2c, right bonnet hood opening/closing robot 2d, left trunk painting robot 2e, left rear door 5RDL inner panel painting robot 2f, left rear door 5RD
A left trunk opening/closing robot 2g and a left bonnet hood painting robot 2h are installed, and then a left trunk opening/closing robot 3a is installed on both sides of the rear section in the direction of movement of the painting line (a).
, left front door 5FDR inner plate painting robot 3b, left front door 5FDR opening/closing robot 3c, left bonnet hood opening/closing robot 3d.

Right trunk painting robot 3e, right rear door 5RDL
An interior panel painting robot 3f, a right-side rear door 5RDL opening/closing robot 381, and a right-side bonnet hood painting robot 3h are installed, respectively, and are handled by two sets of front and rear robots (4+4), which are distinguished by codes 2a to 2h and 3a to 3h, respectively. Opening/closing of the left and right doors, trunk lid, bonnet hood, and other opening/closing bodies of the vehicle 5 and painting operations are realized.

The opening/closing device section (4-axis arm section) of each of the left and right bonnet hood opening/closing robots 2d3d is shown in FIGS. 2 and 3, for example.
It is configured as shown in the figure.

That is, reference numeral 11 is a boss portion for attaching an opening/closing jig that is rotatably attached to the tip of the operating arm 10 of the bonnet hood opening/closing robot 2d or 3d via a shaft 12; As shown in the figure, a hook-shaped opening/closing jig 13 (corresponding to the striker support part in the claims) is attached.

Further, the shaft 12 is provided with a dogleg-shaped open/close arm (corresponding to the back support part of the open/close body in the claims) which is arranged in line with the boss part 11 and is considerably longer than the open/close jig 13. 14 are coaxially rotatably attached.

In FIG. 2, reference numeral 7 denotes a guide member 9 attached to the vertical shaft 7 of the bonnet hood opening/closing robot 2d, 3d via a predetermined guide mechanism such as a roller so as to be freely movable in the vertical direction. The operating arm IO is attached to the guide member 9 using an attachment member 9.

When opening the bonnet hood, the opening/closing jig 13, as will be described in detail later, first contacts the lower surface of the striker portion 16 at the front end 15b of the central portion of the bonnet hood 15 with its tip 13a as shown in FIG. 3, for example. Then, as the opening/closing jig 13 moves upward, the bonnet hood 15 rotates about the hinge portion 6 and is lifted upward as shown in the figure.

Then, the operating arm 1o on the side of the hood opening/closing robot rotates, and this time it abuts the tip 14a of the bonnet opening/closing arm 14 against the central part of the back side of the bonnet hood 15, and then the opening/closing operation is performed. By letting the tool 13 escape downward, the striker section 16
The bonnet hood 15 is supported by moving its support point to the center of the bonnet hood back surface part 15a. in this case,
The opening/closing fulcrum of the hinge portion 6 of the bonnet hood 15 is P,
Then, the operating range of the pivot point P of the boss portion 11 of the operating arm lO side shaft 12 is approximately as shown in FIG. 3.

The operation of the bonnet hood opening/closing device section from the first opening operation to the closing operation after completion of painting is divided into eight operating states as shown in FIGS. 4(a) to 4(h).

That is, in the first state when the bonnet hood starts opening/closing, the bonnet hood 15 is closed as shown in FIG. 4(a).
On the other hand, the opening/closing jig 13 and the opening/closing arm 14 described above correspond directly below. In other words, in this state, the tip 13a of the hook-shaped opening/closing jig 13 is positioned directly below the striker section 16 of the bonnet hood 15, and the opening/closing arm 14 is accurately perpendicular to the vertical direction. regulated by.

Next, the first state shifts to the second state shown in FIG. 4(b). In the second state, the opening/closing jig 13 and the opening/closing arm 14 in the first state are raised upward as they are, and the tip 13a of the opening/closing jig 13 is brought into precise contact with the striker portion 16 of the bonnet hood 15. state.

Next, from the second state, with the opening/closing jig 13 fixed, the operating arm IO is moved in the bonnet opening direction as shown by the arrow to open the bonnet hood 15 to a predetermined target opening degree, and On the way, rotate the opening/closing arm 14 in the upward direction of the arrow, and turn the tip 14a
is brought into contact with the center portion of the back surface portion (insulator portion) 15a of the bonnet hood 15. As a result, Figure 4 (C
) is formed.

Thereafter, from the third state, the operating arm 1o is lowered in the direction of the arrow with the bonnet hood 15 supported only by the opening/closing arm 14, as shown in FIG.
A fourth state shown in d) is formed. In this state, the inner peripheral edge of the bonnet hood 15 excluding the insulator is painted by a painting means. In this state, the supporting point is at the center of the back surface of the bonnet hood, which does not require any paint spraying, that is, at the insulator section, so there is no problem in painting.

When the painting of the phone hood 15 is completed as described above, the tip 13a of the opening/closing jig 13 is brought into contact with the lower surface of the striker portion 16 again as shown in FIG. form).

Subsequently, from the fifth state, as shown in FIG. 4(f), only the opening/closing arm 14 is rotated in the downward direction of the arrow while the opening/closing jig 13 is fixed, and is removed from the bonnet hood 15 (sixth condition).

Next, when the boss portion 11 is lowered straight in the sixth state, the seventh state shown in FIG. 4(g) is reached, and the bonnet hood 15 is closed.

Thereafter, as shown in FIG. 4(h), the operating arm 10 of the bonnet hood opening/closing robot is further released downward to return to the eighth state (origin), which is the same as the first state.

Next, the coating method and coating operation of the above-mentioned bonnet hood coating apparatus will be explained in detail with reference to the flowchart shown in FIG.

That is, first, the opening/closing jig 13 of the bonnet hood opening/closing robots 2d, 3d explained in FIG. 4 is moved to the striker portion 16 of the bonnet hood 15 (step Sl). Next, the above-mentioned Fig. 4(b) → Fig. 4(C)
) to open the bonnet hood 15 (
Step S,).

As a result, the robot y side operating arm 1 during opening work
0 is detected (step SS). As a result, if YES (overload),
For example, it is determined that the contact point of the opening/closing jig 13 is incorrect or that there is some other reason and that it is abnormal (
Step S,).

On the other hand, if the determination in step S is NO, the above-described opening operation of the bonnet hood 15 is ended (step S).

Then, it is further determined whether or not the bonnet hood 15 is actually opened by a predetermined opening degree or more, and if it is opened by a predetermined opening degree or more (YES), the next step/b S? First, the interior of the engine room is sprayed with paint. On the other hand, if NO is closed, it is impossible to paint the inside of the engine compartment, so the process proceeds to step S4 described above and is determined to be abnormal.

On the other hand, Step S? When the spraying inside the engine room is finished, the spraying is finished (Step S), and then the above-mentioned bonnet hood opening/closing robot 2
The four-axis arms d and 3d, that is, the opening/closing arm 14, are attached to the mounting portion of the insulator as shown in FIG. 4(c) (step S0).

Then, as shown in FIG. 4(d), the opening/closing arm 14
The above-mentioned robot-side operating arm 10 is lowered centering on the tip of the opening/closing jig 13, thereby avoiding the opening/closing jig 13 from the striker portion 16 of the bonnet hood 15 (step S, ).

Subsequently, the bonnet hood painting robots 2h, 3h shown in FIG. 1 are operated to perform the painting work on the bonnet hood 15 (step S, . . .).

Next, as described above, the rear surface 15 of the bonnet hood 15 is
When the painting of part a is completed, as shown in FIG.
3 to the striker section 16 again (step S,
the law of nature.

Next, as shown in Fig. 4(f), the opening/closing arm (4-axis arm) of the same bonnet hood opening/closing robots 2d and 3d.
14 (step 5I3).

Finally, in step S14, it is determined again whether the bonnet hood 15 is closed or open, and if it is open (YES) and all the above-mentioned painting operations have been performed smoothly (see Fig. 4 (r)). Finally, the bonnet hood 15 is closed as shown in FIG.

It is determined that there is an abnormality in Step S4.

[Brief explanation of the drawing]

FIG. 1 is a working robot layout diagram of an automobile painting line showing a method of painting an opening/closing body according to an embodiment of the present invention and the configuration of a coating apparatus for carrying out the method, and FIG. 2 is a part of the automobile painting line described above. Fig. 3 is a side view of the main parts, and Fig. 4 is a perspective view showing the operating state of the main parts of the working robot.
Figures 2 and 3 are diagrams showing the operating states of the skeleton structure divided into eight stages over time in more detail, and Figure 5 is a method of painting an opening/closing body according to an embodiment of the present invention. It is a flowchart which shows. 1...・ ・ 3g ・ ・ 3h ・ ・ 10 ・ ・ 11 ・ ・ l 2 ・ ・ ・Car painting line・Right trunk opening/closing robot・Right front door inner plate painting robot・Right side front door opening/closing robot・Right side bonnet hood opening/closing robot・Left trunk Painting robot - Left side rear door inner panel painting robot - Left side rear door opening/closing robot - Left side bonnet hood painting robot - Left side trunk opening/closing hot - Left side front door inner panel painting robot - Left side front door opening/closing robot - Left side bonnet hood opening/closing robot・Right-side trunk painting robot ・Right-side rear door inner panel painting robot ・Right-side rear door opening/closing robot ・Right-side bonnet hood painting robot ・Operation arm ・Boss section ・Axis 13 ・ 14 ・ 15 ・ 16 ・ ・Opening/closing jig ・Opening/closing arm ・Bonnet hood ・Striker section

Claims (1)

[Scope of Claims] 1. A striker support part that supports a striker part of an opening/closing body such as a bonnet hood of a vehicle, and a back surface of the opened opening/closing body when the striker supporting part is lifted upward to open the opening/closing body. After the striker supporter completes opening of the opening/closing body, the back side of the opening/closing body excluding the striker part is removed from the striker part by the back support part. A method for painting an opening/closing body, in which the opening/closing body is supported by changing the support point to the opening/closing body, and the periphery of the back side of the opening/closing body is painted by a coating means. 2. A striker support part that supports a striker part of an opening/closing body such as a bonnet hood of a vehicle, and a back support part that lifts the striker support part upward to open the opening/closing body and supports the back side of the opened opening/closing body. an opening/closing means having two support parts; and after the opening/closing body is opened by the striker support part of the opening/closing means, the support point of the opening/closing body is moved from the striker part supported by the striker support part to the back surface support. a support part moving means for moving the striker support part and the back surface support part to move the striker support part and the back surface support part to a back part of the opening/closing body other than the striker part supported by the opening/closing body; A coating device for an opening/closing body, comprising a coating means for painting the periphery of the back side of the opening/closing body while moving to the back side of the body.