JPH0143335Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for wiping an automobile body that is transported to a painting process in an automobile manufacturing factory.

(Prior Art) Conventionally, it has been difficult to automate the work of wiping off powder and dust from grinder finishing that adheres to automobile bodies before transporting them to the painting process, and the work has relied solely on manual work.

Although manual wiping is easy, it has the disadvantage that it is not only inefficient and expensive, but also tends to cause uneven wiping, which often affects the quality of the coating.

(Purpose of the invention) The present invention was made in order to eliminate the above-mentioned drawbacks, and it is an automobile body that can automatically wipe off surfaces such as the bonnet, front fender, roof, trunk lid, rear fender, etc. The purpose is to provide a wiping device.

(Structure of the invention) The car body wiping device of the invention is a device for wiping car bodies being transported to a painting process, and includes a frame erected on the left and right sides of a transport path for the car body, and a first arm attached to the frame. The first wiping tool is supported so as to be vertically swingable, and a first wiping tool for wiping the upper surface of the central part in the width direction of the automobile body is attached to the tip of the first arm in a manner intersecting with the transport direction.
A drive device is provided for swinging a first arm so that the wiping tool follows the automobile body, a second arm is supported on a frame in a lateral position of the first arm so as to be swingable up and down, and a distal end of the second arm is provided. A second wiping tool for wiping the upper surface of the side part that comes off from the center part in the width direction of the automobile body is attached to the part, and a locking tool is attached to one of the first arm and the second arm, so that the first wiping tool is attached to the roof. The first arm and the second arm are operated in conjunction with each other so that the second wiping tool is retracted higher than the top surface of the roof when it is in the position of wiping the top surface.

In the above configuration, when the car body is transported to the wiping device position, the first arm is swung by the drive device so that the first wiping tool follows the car body, and the first wiping tool wipes the top surface of the bonnet. Also, the sides of the bonnet and the top of the front fender were wiped off with the second wiping tool.
When the first wiping tool is in a position to wipe the top surface of the roof, the second arm is linked to the first arm via the locking device and retracted upward, so that the second wiping tool is pulled to the rain rail on the side of the roof. It never takes.

(Effects of the Invention) Since the present invention is configured and operates as explained above, the first wiping tool wipes the bonnet of an automobile body being transported along the transport path, and the first wiper wipes the bonnet side and the top surface of the front fender. 2. Automatically wipe the top surface of the roof with the first wiping tool, then automatically wipe the top surface of the trunk lid with the first wiping tool and the rear fender with the second wiping tool as needed. This makes it possible to perform the wiping work of automobile bodies efficiently and economically, and also provides excellent quality with no uneven wiping.

Furthermore, since the second wiping tool retreats upward when the first wiping tool wipes the top surface of the roof, the second wiping tool does not get caught on the rain rail on the side of the roof, making it highly reliable and suitable for automation. .

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in Figures 1 and 2, an automobile body 1 is transported to a painting process in an automobile manufacturing factory.
The car body 1 is transported along a conveyance path by a trolley 2, but before the painting process begins, the following car body A wiping device will be installed.

A frame 3 is provided, which is made up of a pair of pillars 3a erected on both left and right sides of the transportation path for the automobile body, and a beam 3b mounted between the tops of the pillars 3a.
A pair of upper and lower support shafts 4a, 4b are installed between the upper portions of both pillars 3a at a lower position, and both ends of each support shaft 4a, 4b are rotatably supported on the pillar 3a.

The upper ends of the upper arm 5a and lower arm 5b of the pair of upper and lower parallel arms 5 are fixed to the upper and lower support shafts 4a and 4b, respectively, at positions near the left and right ends of the support shafts 4a and 4b, and the upper ends of the upper and lower arms 5a and 5b of the upper and lower pairs of parallel arms 5 are respectively fixed to the upper and lower support shafts 4a and 4b. Atsupa arm 5a and lower arm 5b that are protruded and tilted
The lower end portions of the connecting plate 6 are rotatably connected to the upper and middle portions of the connecting plate 6, respectively. That is, a pair of parallel rings consisting of the support shafts 4a, 4b, the upper arm 5a, the lower arm 5b, and the connecting plate 6 are provided symmetrically on the left and right,
It is vertically swingable with respect to the frame 3.

A horizontal wiping tool attachment rod 7 is removably attached between the left and right connecting plates 6 in a transverse manner in the left and right direction, and the bonnet of the automobile body 1 is located in the center part of the wiping tool attachment rod 7 excluding the sides. , a first wiping tool 8 for wiping the surfaces of the roof and trunk lid.

In addition, the atsupah arm 5a of the left and right parallel arms 5
They are connected to each other by connecting rods 9 and 10 at two upper and lower places, and the upper and lower connecting rods 9 and 10 are connected by three rods 11 made of synthetic resin. (not shown)
is installed.

Furthermore, in order to install a second wiping tool 12 for wiping the left and right sides of the hood of the automobile body 1 and the surfaces of the front fender and rear fender,
A pair of left and right escape arms 13 are disposed inside the left and right parallel arms 5, facing in the same direction as the parallel arms 5, and the upper end of each escape arm 13 is rotatably supported on the lower support shaft 4b. A wiping tool attachment part 13a is extended inward from the lower end of each escape arm 13, that is, perpendicular to the conveying direction, in an L shape, and the second wiping tool 12 is detachably attached to this attachment part 13a.

Both the first wiping tool 8 and the second wiping tool 12 are made of an appropriate number of cylindrical bodies made of thick non-woven fabric or woven fabric impregnated with special synthetic resin and oil agent and cut into lengths of about 300 mm. The first wiping tool 8 consists of four of these cylindrical bodies arranged horizontally and the wiping tool attachment rod 7 inserted through them and fixed with a clip or the like, and each of the second wiping tools 12 consists of one cylindrical body. The wiping tool attachment part 13a is inserted through it and fixed with a clip or the like. The first wiping tool 8 is attached to and removed from the mounting rod 7, and the second wiping tool 12 is attached to and removed by itself.

Here, the drive mounting 15 for swinging the parallel arm 5 and the escape arm 13 so that the first wiping tool 8 and the second wiping tool 12 follow the surface shape of the vehicle body 1 is as follows. configured.

First, an electric motor 14 with a continuously variable transmission is built into the box-shaped portion 3A at the bottom of the left pillar 3a, and a drive rod 16 that is driven up and down by the electric motor 14 is mounted on the back side of the pillar 3a. The other end of the rotating lever 17 is extended diagonally rearward and upward, and is rotatably connected to the upper end of the drive rod 16. The other end of the rotating lever 17 is fixed to the lower support shaft 4b. By rotating the lower support shaft 4b through the lower support shaft 4b, the parallel arm 5 can be vertically swung.

Further, when the first wiping tool 8 is positioned low to wipe the surfaces of the bonnet and trunk lid, the second wiping tool 12 is also positioned low to wipe the sides of the bonnet and the surfaces of the front fender and rear fender. Further, when the first wiping tool 8 is in the position of wiping the surface of the roof, the second wiping tool 12 is used to prevent the second wiping tool 12 from getting caught on the rain rail 18 on the side of the roof.
A locking tool 19 for linking the parallel arm 5 and the escape arm 13 is fixed near the upper part of the left and right upper arms 5a so that the positions of the parallel arms 5a and the escape arm 13 can be adjusted freely so that the escape arm 2 is retracted to a position higher than the top surface of the roof.
As shown in FIG.
a faces the lower side of the escape arm 13, and this roller portion 19a locks the escape arm 13 from below.

Next, in order to detect the shape of the outer surface of the automobile body 1, such as the bonnet, roof, trunk lid, etc., a photoelectric switch consisting of a light emitter 20a and a light receiver 20b facing each other is installed at the bottom of the pair of left and right connecting plates 6. Two pairs of photoelectric switches 20 are installed vertically apart from each other by about 4 to 5 cm, and the parallel arm 5 is swung at an angle such that the top surface of the vehicle body 1 is located between the optical axes of both photoelectric switches 20. The electric motor 14 is controlled via a control attachment (not shown) that receives signals from the motor.

The drive mechanism for driving the drive rod 16 with the electric motor 14 rotates a screw shaft 21 connected to the output shaft of the motor 14 to drive the screw block 22 up and down, as shown in FIG. The drive rod 16 is moved up and down by moving the drive block 23 on the drive rod 16 side up and down with the screw block 22.

A limit switch is also attached to set the upper limit position and lower limit position of the drive rod 16 from the position of the drive block 23.

In addition, the reference numeral 24 is a moment-adjustable balance weight, and the reference numeral 25 is a light projector and a light receiver for early detection of the sunroof 26 when the sunroof 26 is fixed to the car body and transported as shown in FIG. The second part is a photoelectric switch 25.

Next, the operation of the above automobile body wiping device will be explained.

First, until the automobile body 1 is transported, the parallel arm 5 swings to the lower limit position and stops, as shown in FIG.
The wiping device is swung to the lower limit position with or without the wiping device 9 and stopped while being supported by the wiping device attachment rod 7. However, when the automobile body 1 is transported, both photoelectric switches 20 are shielded from light. Immediately after that, the upper photoelectric switch 2 is turned on.
The motor 14 rotates normally and the parallel arm 5 swings upward until 0 is turned off. In this state, the first wiping tool 8 is at the optimal height for wiping the surface of the hood, and the second wiping tool 12 is also at the optimal height for wiping the sides of the bonnet and the front fender. Wiping is automatically performed as the body 1 moves.

Then, when the upper photoelectric switch 20 is shielded from light due to the inclination of the bonnet, the parallel arm 5 and escape arm 13 are again oscillated upward in the same manner as described above.

Thereafter, when the parallel arm 5 is similarly swung to the height of the roof, the locking tool 19 is moved to the parallel arm 5.
Since the escape arm 13 is attached to the upper part of the upper arm 5a, the locking tool 19 also moves to a higher position, and since the upper end of the escape arm 13 is supported by the lower support shaft 4b, the roller portion 19a of the locking tool 19 moves to a higher position. The locked escape arm 13 is swung upward to a substantially horizontal state, and the second wiping tool 12 is retracted to a position higher than the top surface of the roof. Therefore, it is possible to prevent the second wiping tool 12 from getting caught on the tips of the rain rails 18 on the left and right sides of the roof.

In this way, the surface of the roof is automatically wiped off with the first wiping tool 8, as in the case of the bonnet.
Next, the surface of the trunk lid is automatically wiped with the first wiper 8, and the surface of the rear fender is automatically wiped with the second wiper 12.

In this way, since the tracing control uses two sets of photoelectric switches 20, it is possible to automatically handle different types of automobile bodies 1.

The locking tool 19 is provided on the escape arm 13 side, and the locking portion 19a is connected to the upper arm 5a.
You may also pull it up with the photoelectric switch 2.
0 may be replaced with a contact type detection means, and in order to dampen the downward swinging speed of the parallel arm 5, a cushion cylinder may be connected to a lever (not shown) fixed to one of the support shafts 4a, 4b. It is also conceivable that a side wiping means for wiping the left and right side portions of the automobile body 1 is provided inside the lower part of the pillar 3a.

According to the vehicle body wiping device of the above embodiment, since the parallel link arms 5 are used, the strength and rigidity are excellent, and the posture of the connecting plate 6 is maintained constant, so that the posture of the first wiping tool 8 can be varied. There's nothing to do. In addition, since the parallel arm 5 and the escape arm 13 are operated in conjunction with each other using a simple locking tool 19, driving means and detecting means for the escape arm 13 can be omitted, which is economical.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a front view, Fig. 2 is a side view, Fig. 3 is a perspective view of the locking device, and Fig. 4 is an enlarged front view of the main parts of the drive device. be. 1...Automobile body, 3...Frame, 3a...
... Pillar, 3b... Beam, 5... Parallel arm, 5a...
...Atsupa frame, 5b...Lower arm, 8...
First wiping tool, 12...Second wiping tool, 13
... Escape arm, 15 ... Drive device, 19
...Locking tool.

Claims (1)

[Scope of utility model registration request] A device for wiping automobile bodies transported to a painting process, the device comprising: a frame erected on the left and right sides of a transportation path for the automobile body; a first arm supported by the frame so as to be vertically swingable; and the first arm. a first wiping tool that is attached to the tip of the vehicle in a manner that intersects with the conveying direction and is used to wipe the upper surface of the central portion of the vehicle body in the width direction; and a drive that swings the first arm so that the first wiping tool is along the vehicle body. a device;
Wipe off a second arm provided at a side position of the first arm and vertically swingably supported by the frame, and the upper surface of the side part that is attached to the tip of the second arm and comes off from the center in the width direction of the vehicle body. a second wiping tool attached to one of the first arm and the second arm so that the second wiping tool is retracted higher than the top surface of the roof when the first wiping tool is in a position for wiping the top surface of the roof; An automobile body wiping device characterized by comprising a locking device that causes an arm and a second arm to operate in conjunction with each other.