JPH02249775A - Device for applying adhesive onto window glass - Google Patents

Abstract

PURPOSE:To improve the workability by actuating the second delivery means only in the case of the necessary for a quarter window glass so that an adhesive agent may be applied to said glass by a robot, in the case of multi-kind mixed manufacture line including kinds of car requiring the quarter window glass. CONSTITUTION:The first conveying means 6, conveying front and rear window glasses 2 and 4 already applying a primer in the preceding process, and the second conveying means 10, conveying a quarter window glass 8 similarly applying the primer, are provided. While the first and second delivery means 20, 22, delivering the glasses 2, 4 and 8 conveyed by each conveying means 6, 10 to supporting means 24, 46 for applying an adhesive, are provided, and the adhesive is applied by an adhesive applying means 32 to each glass 2, 4, 8 on the supporting means 24, 46. The second delivery means 22 is driven and controlled only when the quarter window glass 8 is necessary in reference to output of a glass shape detecting means 12 for detecting the shape of each of window glasses 2, 4.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for applying adhesive to a front windshield, a rear windshield and a quarter windshield of a vehicle.

(Prior Art) In a window glass installation process on a vehicle production line, a window glass coated with an adhesive is attached to a body flowing on the line.

By the way, if the vehicle manufacturing line mentioned above is a multi-product mixed production line, many types of bodies (car models) are mixed on the line, and some of them include car models that are equipped with a quarter windshield as well as a front windshield and a rear windshield. may exist. In the case of such a multi-product mixed production line, adhesive must be applied to the quarter window glass in addition to the front and rear window glasses for the body of the vehicle to which the quarter window glass is also installed. Conventionally, for example, front windshield glass and rear windshield glass corresponding to the vehicle type are sequentially and alternately conveyed one by one in the order of the vehicle types flowing on the vehicle manufacturing line. A robot places the window glass on a support for applying adhesive, the robot applies adhesive to the window glass on the support, and the window glass coated with adhesive is taken out and transferred to the production line. In addition to sequentially attaching it to the body that has flown above by a worker or a robot, the above-mentioned quarter window glass is prepared separately from the above-mentioned front and rear window glasses,
If the vehicle model coming on the production line requires a quarter window glass, a worker separately applies adhesive to the prepared quarter window glass, and the robot applies adhesive to the front panel. Along with the rear window glass and the rear window glass, this worker also installed the quarter window glass with adhesive applied to the body.

(Problem to be Solved by the Invention) However, the adhesive application method described above does not require a worker to apply adhesive to the quarter window glass every time a car model that requires a quarter window glass arrives. However, it is troublesome and has a problem of poor work efficiency.

In view of the above circumstances, it is an object of the present invention to completely apply adhesive to windshields without the need of workers even in a multi-product production line that includes vehicle models that require quarter windshields as described above. It is an object of the present invention to provide an apparatus for applying adhesive to a window glass, which can be applied automatically and can greatly improve work efficiency.

(Means for Solving the Problems) In order to achieve the above object, the device for applying adhesive to a windshield according to the present invention includes a first conveying means for conveying a front windshield and a rear windshield, and a quarter windshield. a second conveying means for conveying; a supporting means for supporting the front windshield, the rear windshield and the quarter window glass during application of the adhesive; and a second conveying means for conveying the front windshield and the rear windshield that have been conveyed by the first conveying means. a first delivery means for delivering to the support means; and a second delivery means for delivering the quarter window glass transported by the second transport means to the support means;
An adhesive application means for applying adhesive to each of the windshields supported by the support means; and a glass shape detection means for detecting the shape of the front windshield or rear windshield conveyed by the first conveyance means. and a control means for controlling the operation of the second delivery means based on the glass shape information output from the glass shape detection means.

(Function) The shape of the front or rear windshield varies depending on the vehicle model. Therefore, if information on the correspondence between the shape of the front or rear windshield and whether the glass of the shape is for a car model with a quarter window glass is given to the control means in advance, the control means can operate as described above. Only when the quarter window glass is required based on the glass shape information input from the glass shape detection means, the second delivery means can be operated to cause the adhesive coating robot to apply the adhesive to the quarter window glass; Therefore, with the adhesive applicator having the above configuration, even in a mixed production line where vehicle models with quarter window glass are mixed, the adhesive can be applied to each window glass completely automatically, and the adhesive application work can be easily performed. Efficiency can be significantly improved.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of an apparatus for applying adhesive to a window glass according to the present invention.

The illustrated windshield adhesive applicator is an adhesive applicator used in a multi-mix vehicle production line, including vehicle models with quarter windshields. The window glass 4 is transported by the first transport means 6, and the quarter window glass 8, which has already been coated with a primer in the previous step, is transported by the second transport means 10.

The first conveying means 6 and the second conveying means 10 are shuttle-type lift-and-carry conveyors that convey each window glass 2.4.8 in the direction of arrow A.
The first conveying means 6 carries out front window glasses 2 corresponding to the vehicle types in the order of body types (vehicle models) that are flown on the vehicle manufacturing line by a body conveying means (not shown).
and the rear window glass 4, and the second conveying means 10 is configured to convey the type (type) of the body to which the quarter window glass is to be attached among the bodies flowing on the vehicle manufacturing line.
The left and right quarter window glasses 8 corresponding to the vehicle models are conveyed in the order of vehicle models with quarter window glasses.

The shapes of the front and rear window glasses 2 and 4 transported by the first transport means 6 are detected by the glass shape detection means 12 at the transport terminal position P1.

As shown in FIG. 1, the glass shape detection means 12 is configured as a transfer forming detection means equipped with five contact arms 14 that contact the peripheral edge of the glass, and each contact arm 14 has the following structure: As shown in FIG. 2, which is a view taken along the line ■-■ in FIG. and one end portion 14
b is rotatably connected to the tip of the cylinder rod 18a of the cylinder 1B, which is rotatably provided at the base of the first conveyance means 6 or the like. This glass shape detection means 12 rotates the five contact arms 14 in the direction of arrow B by operating each cylinder 1B to bring them into contact with the peripheries of the front and rear window glasses 2 and 4, and The shape of the window glass 2.degree. 4 is detected from the stroke amount of the cylinder rod lea or the rotation amount of the contact arm 14.

Glass shape information of the front and rear window glasses 2 and 4 detected by the glass shape detection means 12 is inputted to the control means 18. The shapes of the front or rear windshields 2 and 4 differ depending on the vehicle model, therefore, by detecting the shapes of these windshields, it is possible to determine whether the body to which these windshields are to be attached is a vehicle model with a quarter windshield. I can do it.

The control means 18 stores in advance a table showing the relationship between the glass shape of the front or rear window glasses 2, 4 and whether or not the quarter window glass 8 is necessary. Based on the glass shape information, it is determined whether the front or rear windshield 2, 4 to be detected is of a car model equipped with a quarter window glass or not. Only the first delivery means 20 is operated, and if the vehicle is equipped with one, the second delivery means 22 is operated together with the first delivery means 20.

First, the case where the vehicle type does not have the above-mentioned features will be explained. In this embodiment, when the front windshield 2 and the rear windshield 4 are attached to one body, the front windshield 2 is transported first, and then the rear windshield 4 is transported. When it is determined that the front windshield 2 transported to the terminal position P1 is of a vehicle type that does not have a quarter windshield, the first delivery means 20 applies adhesive to the front windshield 2. A pedestal 24 serving as a support means for supporting the front and rear windshields 2 and 4 at times.
be moved upwards.

The first delivery means 20 has a first arm 26 and a second arm 28, and a suction cup 2 is attached to the tip of each arm 26.28.
8a and 28a are provided, and both arms 28 and 28 are integrally rotated in the direction of arrow C around a rotation axis 20a perpendicular to the plane of the paper, and the arms 28 and 28 can be moved back and forth, extended and contracted. , rotation of the suction part, suction by the suction cup, and release of suction are each performed by a robot configured to be able to operate independently.The robot rotates both arms 26 and 28 clockwise from the standby position shown in the figure to release the suction cup 2 of the first arm.
The front windshield 2 located at the terminal position P1 is suctioned by the suction cup 26a, and the rear arm is rotated counterclockwise to position the suctioned front windshield 2 on the pedestal 24, where the suction cup 26a The suction is released and the front windshield 2 is placed on the pedestal 24.
after which both arms 26, 28 are returned to the standby position shown.

Front window glass 2 placed on the pedestal 24
is positioned on the pedestal 24 at a predetermined position by a positioning and shape detection means 30 having the same structure as the glass shape detection means (2), and the glass shape is detected. The information is input to a urethane coating robot 32 serving as adhesive coating means, and the robot 32 applies adhesive to the front windshield 2 based on the input information.

FIGS. 3 to 5 are diagrams showing an example of urethane coating mode,
3 is a plan view, FIG. 4 is a view seen from the direction of the arrow (■) in FIG. 3, and FIG. 5 is a sectional view taken along the line V-V in FIG. 3. A primer 34 has already been applied to the peripheral edge of the front window glass 2 transported by the first transport means 6 in a previous step, and urethane 36 is applied onto the primer 34. The application of the urethane 3B is carried out by the robot 3.
This is carried out by discharging urethane from the second urethane discharging nozzle 32a and moving the nozzle 32a along the peripheral edge of the front windshield 2 coated with the primer 34. In addition, 38 in FIG. 5 is a dam.

After the adhesive has been applied to the front windshield 2, the next rear windshield 4 is positioned at the terminal position P1, and in this state, the first
Both arms 28, 28 of the transfer means 20 are pivoted clockwise from the standby position shown, and the suction cup 26 of the first arm
At the same time, the rear windshield 4 at the terminal position P1 is suctioned by the suction cup 28a of the second arm. .28 is turned counterclockwise, and at the same time as the rear window glass 4 is transferred onto the pedestal 24, the front window glass 2 is transferred onto the starting end position P2 of the first delivery means 40.

The rear window glass 4 transferred onto the pedestal 24 is
As with the front windshield 2, a primer has already been applied, and the positioning and shape detection means 30 performs positioning and shape detection on the pedestal 24, and then urethane coating is performed by the urethane coating robot 32. On the other hand, the first delivery means 40 is composed of a shuttle type lift and carry conveyor, and the front windshield 2 transferred to the starting end position P2 on the first delivery means 40 is moved in the direction of the arrow by the first delivery means 40. direction, and is attached to a body on the production line by a worker or robot (not shown).

After the rear window glass 4 is transferred onto the pedestal 24, the front windshield 2 of the next body is carried to the terminal end P1 of the first conveying means, and the shape of the front windshield 2 is detected in the same manner as described above. The front windshield 2 is transferred onto the pedestal 24 and the pedestal 24 is
When the above adhesive is applied, the rear window glass 4 is transferred to the starting end position glP2 on the first delivery means 40 at the same time, and the above-described work cycle is repeated.

Note that when the first arm 26 of the first transfer means is located at the terminal position P1 of the first conveyance means, the second arm 28
is located on the pedestal 24, and when the first arm 26 is located on the pedestal 24, the second arm 28 is positioned at the starting end position P2 of the first delivery means. pedestal 2
4. The mutual positional relationship of the first delivery means 40 and the first delivery means 20 is adjusted.

As mentioned above, during the application of adhesive to the front and rear windshields 2.4 of a vehicle model not equipped with a quarter window glass 8, only the first delivery means 20 is operated, the second delivery means 22 is not operated, and therefore the second delivery means 22 is not operated. The quarter window glass 8 on the second conveyance means 10 is in a standby state.

Next, if the front windshield 2 conveyed to the terminal position P1 by the first conveyance means 6 is of a vehicle type equipped with a quarter window glass 8, the first delivery is carried out by the @TJ Ote Nage means. means 20 and second
The delivery means 22 is activated, and the adhesive is applied to the front window glass 2, the rear window glass 4, and the left and right quarter window glasses 8.

In this case, the application of the adhesive to the front windshield 2 and the subsequent rear windshield 4 is carried out in the same manner as in the case of the above-described vehicle model not equipped with a quarter window glass. Furthermore, the adhesive is applied to the quarter window glass 8 in the same manner as for the front and rear window glasses 2.4. That is, in this embodiment, the quarter window glass 8 is transported in the order of the left quarter window glass and the right quarter window glass by the second transport means IO, and the second delivery means 8 having the same configuration as the first delivery means 20 is used. The first arm 42 and the second arm 44 of 22 are integrally rotated counterclockwise around the pivot shaft 22a, and the suction cup 42a of the suction portion 42b of the first arm moves the second conveying means to the terminal position P3. Pick up the left quarter window glass 8 located above, and then attach both arms 42.4.
4 in the clockwise direction and the left quarter window glass 8 that has been sucked is placed on a pedestal 46 which is a support means having a structure similar to that of the support means 24, and a structure similar to that of the positioning and shape detection means 30. The left quarter window glass 8 on the pedestal 4B is positioned at a predetermined position by the positioning and shape detection means 48, and the shape of the glass is detected.The glass shape information is input to the urethane coating robot 32, and the robot 32 Urethane coating is performed on the left quarter window glass 8. When the urethane coating is completed, both arms 42 and 44 of the second transfer means 22 located at the standby position shown in the figure are rotated counterclockwise, and the suction cup 42a of the first arm moves the second conveyance means to the terminal position. At the same time, the right quarter window glass 8 positioned at P3 is sucked, and the left quarter window glass 8 coated with adhesive on the pedestal 46 is sucked by the suction cup 44a of the second arm, and both arms 42 and 44 are moved clockwise. The left quarter window glass 8 coated with adhesive is transferred onto the starting end position P4 of the second delivery means 50 having the same configuration as the first delivery means 40, and the right quarter window glass 8 is transferred to the receiving end position P4. The left quarter window glass 8, which has been transferred onto the table 4B and placed at the starting end position P4 of the second sending means 50, is conveyed in the direction of the arrow by the second sending means 50, and is then moved by a worker or a robot (not shown) into the body. The right quarter window glass 8 mounted on the holder 46 and transferred onto the pedestal 46 is positioned and its shape detected in the same manner as the left quarter window glass 8, and is coated with urethane by the urethane coating robot 32.
Thereafter, the second arm 44 of the second transfer means 22
It is transferred to the starting end position P4 of the sending means. However, in this case, the suction cup 42a of the first arm does not perform suction operation, and therefore the left quarter window glass 8 of the next body
is not transferred from the first conveyance means 6 onto the pedestal 46.

In this embodiment, since there is only one urethane coating robot 32, each of the above-mentioned windshields 2, 4.8 must be coated with urethane in order, for example, front windshield 2→left quarter window glass 8→ Urethane coating is performed in the order of rear window glass 4 → right quarter window glass 8.

Of course, this order may be set in any manner.

Further, the operation of the urethane coating robot 32 is controlled by the control means 18 described above.

Note that in the first conveying means 6, if the window glass 2.4 is laterally displaced by a predetermined value or more in a direction perpendicular to the conveying direction (direction of arrow A), the window glass 2.4 is moved to the terminal position P1.
In order to prevent this, a limit switch 52 for detecting lateral shift is provided, and the window glass 2,
4 has a lateral deviation of more than a predetermined value, the limit switch 2.degree. 4 comes into contact with the lateral deviation, the lateral deviation is detected, and the lateral deviation is corrected by an operator or the like.

Since the adhesive application shape (cross-sectional shape shown in Figure 5) differs between the front and rear window glasses and the quarter window glass, it is automatically varied by controlling the urethane discharge amount and controlling the speed of the robot. It's good. Further, in the first and second transfer means, it is preferable to incorporate a program timer to independently control the work of the first arm and the second arm, for example, at the start and end of work (including breaks).

In the above embodiment, the adhesive applicator 32 is composed of one robot, but two robots may be provided, one for front and rear window glasses and one for quarter window glasses. Further, although two pedestals are used as supporting means, one pedestal may be used. However, in this case, it is necessary to control the first and second transfer means 20.22 so that they do not interfere with each other. In addition, in the above embodiment, the shape of both the front and rear windshields is detected by the glass shape detection means, but even if the shape of only one of them is detected, it may be difficult to determine whether the shape is of a vehicle with a quarter window glass or not. This information is sufficient as it is available.

(Effects of the Invention) As described above, the device for applying adhesive to a windshield according to the present invention is different from the first conveying means for conveying the front and rear windshields, which is necessary for all vehicle types, as a glass conveying means, and generally has a low production ratio. It is equipped with two lines, including a second conveying means that conveys the automatic windshield glass, which is necessary only for specific vehicle models.The front and rear windshield glass conveyed by the first conveying means are sequentially coated with adhesive and then attached to the front or rear windshield. The shape of the glass is detected, and based on the shape of the glass, it is determined whether or not the car model is equipped with a quarter window glass. Only in the case of a car model with a quarter window glass, the quarter window glass is taken in from the second conveyance means and adhesive is applied. Since it is configured in a similar manner, it is possible to automatically determine whether a quarter window glass is required and apply adhesive to the quarter window glass as well as the front and rear window glass only when necessary. Adhesive can be efficiently applied to window glass in a mixed flow production line.

[Brief explanation of drawings]

Fig. 1 is a schematic plan view showing one embodiment of the adhesive application device according to the present invention, Fig. 2 is a view taken along the line ■-■ in Fig. 1, and Figs. 3 to 5 show adhesive applied to a window glass. 3 is a plan view, FIG. 4 is a view seen from the arrow ■ direction in FIG. 3, and FIG. 5 is a sectional view taken along the line V-V in FIG. 3. . 2...Front window glass 4...Rear window glass 6...First conveying means 8...Quarter window glass 10...Second conveying means 12...Glass shape detection means 18...Control Means 20...First delivery means 22...Second delivery means 24, 28...Supporting means 32...Adhesive application means Fig. Fig. Fig.

Claims (1)

[Scope of Claims] A first conveying means for conveying a front windshield glass and a rear windshield glass, a second conveying means for conveying a quarter windshield glass, and the above-mentioned front windshield glass, rear windshield glass, and quarter windshield glass when applying an adhesive. a first delivery means for delivering the front window glass and rear window glass transported by the first transport means to the support means, and a quarter window glass transported by the second transport means. a second delivery means for delivering the glass to the support means, an adhesive application means for applying an adhesive to each of the window glasses supported by the support means, and the front window glass transported by the first transport means. Alternatively, a glass shape detection means for detecting the shape of the rear window glass and the second glass shape information outputted from the glass shape detection means are used.
1. A device for applying adhesive to a window glass, comprising: a control means for controlling the operation of the delivery means.