JPS607953A - Automatic painting system by electrically driven robot - Google Patents

Abstract

PURPOSE:To minimize measure for preventing explosion by projecting the part forward from the arm part of a robot into a booth via a sealing member and separating power parts for driving the robot and a painting gun held by the robot arm. CONSTITUTION:The part forward from the arm part 4 of a robot is projected via a sealing member into a booth 1 and power parts 5, 5' for driving the robot and a painting gun 6 held to the wrist 14 at the tip of the robot arm are separated. Paint and air are supplied to the gun 6 by a piping 6 conducted into the booth. Even if the power parts 5, 5' which are not provided with measure for preventing explosion for the driving sources are used, the robot can be used in a place where a measure for preventing explosion is necessary. The satisfactory installation of the automatic machine in the conventional booth space is possible and the reduction in the time for maintenance is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention belongs to the field of automatic painting techniques using robots, and relates to an automatic painting system using electric robots.

(Prior art) When it is necessary to place a robot that can continuously operate in a 6-space space in a Q-covered booth to perform automatic spraying, conventionally, it has been common to use a hydraulic robot with explosion-proof measures. It is. However, in this case, there are problems in that the robot body is heavy and requires a hydraulic unit, which requires a large installation space, requires electricity, and makes the entire system expensive.

(Purpose of the Invention) The present invention has been made in view of the problems existing in the above-mentioned prior art.) Even if a DC motor without explosion-proof measures is used as a drive source, it can be used at a lifting station where explosion-proof measures are required. The object of the present invention is to provide an automatic painting system using an electric robot, which can be used with a robot, can be fully installed in a conventional booth space, and can shorten maintenance time.

(Park of the Invention) In order to achieve the above object, the present invention is made by protruding the side part of the robot into the booth through the sealing member 1-2 and moving the robot 1m. A part of the gun is separated from a paint gun that is held manually at the tip of the robot arm and performs painting work, and the gun is supplied with paint and air through pipes installed inside the booth. It is characterized by the fact that it is made to do so. Furthermore, the robot's eye movements are spaced within the painting surface, and explosion-proof measures are kept to a minimum.

(Real 14ha [2ri]) Embodiments of the present invention will be described below based on the drawings.

Figures 1 and 2 show the first embodiment, and in both figures, 1 is a small water curtain type painting booth.
In the painting work room, a painting work room 1 and a room i are separated by a shielding wall 2. 6 is a fluorescent lamp, 4 is a robot, and outside the arm of the automatic machine, 13, s, and 5 are all IS actuators, such as DC plastic smoke, and are installed outside the painting work room. Reference numeral 6 is a painting gun, and 7 is an object to be painted. In this embodiment, 2 is an aluminum wheel, the design portion of which is to be painted. Reference numeral 8 indicates an actuator for circulating or moving the object 7 to be coated, 9 indicates water for a water curtain, and 10 and 10 indicate ducts for exhausting paint mist. 12 is a place for installing automatic machines such as robots, 13 is a booth shower pump, 14 is a movable arm, 15 is an operation panel, 16 is a paint and air station, I3
17 is a paint and air supply hose; 18 is a joint that connects the installation 16 and 17; and 19 is a paint mist intake port.

Open the IL through which the hair arm outer cylinder 4 passes through the shielding wall 2, and insert 7 into this hole.
The outer cylinder 4 is completely passed through with a sealing material to close off the core, and the space between the painting work room 1 and the installation area 12 is partitioned with a shielding wall 2. The painting work chamber 1 in the painting booth must be constructed so that no elements that could cause an explosion or ignition are allowed to enter the booth. Can work inside.

A painting gun 6 is attached to the end of the movable arm 14 having a seal structure, and paint and air are supplied through the pipe 16, joint 18, and hose 17, and while the object 7 to be coated is rotated by the rotation actuator 8, the movable arm 17I ! The design portion is painted by moving the mounting ring 6 to the required position.

The Tsukudasaku board 15 has explosion-proof measures on its side, which allows switching of the operation fljlJ control by the workpiece and one! i'4
The '++' i process can now be operated without leaving the booth, improving work efficiency.

14a in Figure 8132 is IIJJ stamp arm hand shield A Δ
15114 b l='; and 20 indicate the applicable arm parts, respectively, and 20 indicates the boots for dense 1 I'l. In this way, the rotating parts and IIL moving parts of the robot arm are placed behind the robot arm's separate boots, and the robot is If it is installed in such a way as to prevent even the slightest infiltration of organic bath agent paint, etc. into the arm machine's aperture, the Makira V will become explosion-proof.Also, in addition to this, the air pressure supplied from outside the booth It is even better if the robot arm is monitored and leakage around the rotating part of the robot arm or the direct-acting boot or roller is detected to be excessive, and an alarm signal is output.

FIG. 6 shows a second embodiment, and the same components as those in the first embodiment are given the same reference numerals, and their explanation will be omitted. In the same figure, 21 indicates a working arm section, 22 indicates a rotating arm section, and 26 indicates a fixed arm housing section. As described above, according to the present invention, the following effects can be obtained.

(b) It will be possible to automatically paint the design part of aluminum wheels.

(b) Since the shielding wall is sealed with the robot's OJ4 components, there is no need to bring ignition sources such as drive actuators and position detectors into the painting booth.

(c) Since an electric motor can be used, it has a compact configuration, does not require a hydraulic pump unit, etc., and can save space and energy.

2) The arm unit is small and can be removed through the wall, improving maintainability and reducing maintenance time.

(e) Since the burden of explosion-proof measures is reduced, a significant cost reduction can be achieved.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of a first embodiment according to the present invention, A"r
FIG. 2 is an explanatory diagram of the main part thereof, and FIG. 6 is an explanatory diagram of the main part of the second embodiment. 1... Inside the painting strip room 2... Shielding wall 4... Arm outer cylinder 6... Wall mounted gun 14... dJth11 arm 16... Supply piping 21... Swinging arm part 22
...Rotating arm section patent applicant Toyota Motor Corporation (and one other person) Sai1 Wholesale Sai2 Figure 5i23

Claims (1)

[Claims] (1) A part of the power that drives the robot by protruding the arm end of the robot into the booth through a sealing member;
The electric motor is characterized by the fact that the paint gun that performs painting work is separated from the wrist at the tip of the robot arm, and paint and air are supplied to the paint gun through piping led into the booth. Automatic painting system using robot.