JPH044954Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is a door operating device for closing the door of an automobile body, that is, a workpiece, where intermediate coating is now applied while moving on a painting line, after painting the interior intermediate coating. Regarding.

(Prior Art) Intermediate coating of automobile bodies is usually performed by applying an undercoat by electrodeposition, etc., and then placing the workpiece on a trolley or the like and using a coating robot while moving the workpiece along the coating line. In this case, the door of the workpiece that is carried into the painting line after electrodeposition coating is in a closed state, so the intermediate coating is applied by first opening the door using the door opening device attached to the painting robot, and then applying the intermediate coating to the inside of the workpiece. After painting, the door is closed and the outside of the workpiece is painted.
When closing the door after painting the internal intermediate coat, simply installing a pressing member and pressing from the outside of the door to close the door will prevent overspray on the outer surface of the workpiece that occurs during the internal intermediate coating process. A phenomenon occurs in which the pressing member comes into contact and some of the paint adheres to the pressing member, staining the pressing member. For this reason,
Next, when the pressing member is used, a problem arises in that the paint from the pressing member adheres to the outer surface of the workpiece before painting, resulting in poor painting finish. Conventionally, in view of this situation, a special robot was installed to perform the door closing operation, and depending on the car model, the position of the recess near the door handle attachment was detected, and this recess was moved to the tip of the robot. to close the door without interfering with the overspray part on the outside.

(Problems to be solved) The above-mentioned method of installing a robot exclusively for the door closing operation can solve the problem of interference with the overspray part of the pressing part, but depending on the car model, the robot can Since it is necessary to have the function of pressing the recessed portion of the device, it must be constructed extremely precisely, resulting in problems such as the device being bulky and the installation cost increasing.

(Means for solving the above problems) The present invention has been constructed in view of the above circumstances, and can solve the problem of interference with the overspray part, and has a simple structure and is easy to install. It is an object of the present invention to provide a door operating device after internal intermediate coating, which can reduce costs.

The device of the present invention is a door operating device that closes the door of an automobile whose internal intermediate coating is applied while moving along a painting line after the intermediate coating is applied, and is a door operating device that is installed movably in a direction perpendicular to the automobile painting line. a device main body, a lever member having one end rotatably attached to the door operating device main body in a substantially horizontal plane and having a roller at the other end that presses the outer surface of the door; and one end attached to the door operating device main body. A door operating actuator whose other end is attached to the lever member and rotates the lever member; and a door operating actuator which is connected to the door operating device main body and moves the door operating device main body to an appropriate position according to the vehicle model to be painted. A setting actuator, a vehicle position detection device that detects that the vehicle has reached a predetermined position on a painting line, and a lever position detection device that detects that the lever member has rotated to a predetermined position to close the door. , the door operating actuator rotates the lever member in a direction to close the door in response to a signal from the vehicle position detection device to close the door, and rotates the lever member in the opposite direction in response to a signal from the lever position detection device. It is characterized by being able to move and return to its original state. The present invention can be particularly effectively applied to four-door type passenger cars that require the door to be closed twice.

(Effects of the present invention) According to the present invention, the position of the door operating device is adjusted according to the type of car to be painted, that is, the vehicle of the workpiece, and for this purpose, the position of the door operating device is adjusted in accordance with the type of car to be painted, that is, the vehicle of the workpiece. The contact area can be made almost constant regardless of the vehicle type. In addition, when applying the internal intermediate coat, overspray tends to occur on the outer edge of the door, especially on the front side of the rear door in a four-door type car. The roller at the tip of the lever member that presses the door is immediately rotated in the opposite direction and returned to its original position after the door is closed, preventing it from coming into contact with the outer surface of the workpiece behind the door. interference can be avoided. Furthermore, since the present invention is configured to operate only two actuators, the structure is extremely simple and the installation cost is low compared to conventional door closing robots.

(Description of Embodiments) Embodiments of the present invention will be described below with reference to the drawings.

This example is an example in which the present invention is applied to a four-door type automobile body.

Referring to FIGS. 1 and 2, a workpiece 1 that has been undercoated by electrodeposition is placed on a trolley 3 that moves along a predetermined line provided on a floor surface 2 and transported to an intermediate coating station. be done. At the intermediate coating station, the doors 4a and 4b are first opened by a coating robot, and the interior of the workpiece is coated with an intermediate coating. Then, the door 4 is closed by the door closing device 5.
After closing, an intermediate coat of paint is applied to the exterior surface. The door closing device 5 of this example is installed to the side of the work 1 moving on the painting line, and a lever having a roller 6 at one end is provided on the work 1 side of the door closing device main body 5a. Member 7 is attached. In this case, the lever member 7 is attached at its end so as to be rotatable about a pivot shaft 8 in a horizontal plane. Further, the door closing device 5 is connected to the approximately midpoint of the lever member 7 and the door closing device main body 5a.
It is equipped with a lever rotation cylinder 9 that connects the two. Further, the door closing device body 5a is connected to an operation cylinder 10 on the side opposite to the workpiece 1, so that the door closing device 5 is connected to the rail provided on the floor surface 2 in response to the operation of the cylinder 10. 11 in a direction substantially perpendicular to the moving direction of the workpiece 1. Further, limit switches 12 and 13 are arranged on the floor surface 2 to detect the position of the workpiece 1 by contacting the cart. Further, a limit switch 14 for detecting the rotational position of the lever member 7 is attached to the door closing device via a bracket 15.

Next, the operation of the device of this example will be explained.
The door closing device 5 operates a cylinder 10 based on a signal corresponding to the vehicle type of the work 1 carried into the intermediate coating station, and moves the door closing device main body 5a to an appropriate position to close the door of the work 1. move.

Next, work 1 moves along the painting line and moves to trolley 3.
When it hits the limit switch 12, the lever rotation cylinder 9 is activated and the lever member 7 is rotated. As a result, the roller 6 attached to the tip of the lever member 7 presses the front door 4a to close it. When the lever member 7 rotates and hits the limit switch 14, the cylinder 9 operates in reverse to return the lever member 7 to its original state. Next, when the workpiece 1 moves further and the cart 3 hits the limit switch 13, the cylinder 9 is activated again and the rear door 4b is closed. Thereafter, the lever member 7 returns to its original state in the same manner as in the case of the front door 4a. As mentioned above, when the door is closed, the contact portion of the roller 6 is the shaded area 15a, 1 in FIG.
5b, it is formed approximately at the center of the doors 4a, 4b. Since the overspray area on the outer surface caused by internal intermediate coating occurs in the area shown by the shaded area 16 in Figure 3, interference between the roller and the overspray area can be prevented by performing the door closing operation as in this example. be able to.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a door closing device according to an embodiment of the present invention, FIG. 2 is a view taken along arrow A-A in FIG.
FIG. 3 is a side view of a workpiece to which the door closing device of the present invention is applied. 1... Work, 2... Floor surface, 3... Cart,
4a, 4b...door, 5...door closing device, 5a...
... Door closing device main body, 6 ... Roller, 7 ... Lever member, 9, 10 ... Cylinder, 12, 13, 14
...Limit switch.

Claims (1)

[Scope of utility model registration request] A door operating device that closes the door of an automobile whose internal intermediate coating is applied while moving along a painting line after the intermediate coating is applied, the door operating device body being installed movably in a direction perpendicular to the automobile painting line;
a lever member having one end rotatably attached to the door operating device main body in a substantially horizontal plane and a lever member having a roller for pressing the outer surface of the door at the other end; a door operating actuator that is attached to a lever member and rotates the lever member; a vehicle model setting actuator that is connected to the door operating device main body and moves the door operating device main body to an appropriate position according to the vehicle model to be painted; a vehicle position detection device that detects when the vehicle has reached a predetermined position on a painting line;
a lever position detection device that detects when the lever member has rotated to a predetermined position to close the door; Rotate to close the door,
1. A door operating device for car painting, characterized in that the lever member is rotated in the opposite direction to return to its original state in response to a signal from a lever position detection device.