JPH0510964A - Device for detecting traveling direction of mobile object - Google Patents

Abstract

PURPOSE:To enable a traveling direction of a traveling object to be detected by providing a rocking member which can be rocked freely in X-Y direction and a detector for detecting the rocking direction while it is provided around the rocking member. CONSTITUTION:A shaft 13 is provided vertically within an upper case 12, a shaft 15 is penetrated through a lower case 14, the shaft 13 and the shaft 15 are connected by a reclining joint 16, and the shaft 15 can be rocked in all directions. When traveling of a feeding machine 4 cannot follow that of a welding machine 1 smoothly, a cable 6 is pulled by the welding machine 1 and is rocked. A plate 19, a plate 22, etc., are also rocked, a plunger 21A is pressed toward a rod 21, and then a motor 33 is rotated in forward direction and the feeding machine 4 is moved in X direction when it is detected that the cable 6 cannot follow running of the welding machine. When a rod 17 hits against an opposite plunger, the motor 33 is rotated in backward direction and the feeding machine 4 is moved in opposite direction. Similarly, the feeding machine 4 is moved in Y direction following the welding machine 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving direction detecting device for a moving object, and detects the moving direction of the moving object from the swinging direction of a swinging member.

[0002]

2. Description of the Related Art As an automatic welding device, there is known an automatic welding device that performs welding while moving a self-propelled welding machine on a floor or the like.

[0003]

The self-propelled welding machine moves on the floor or the like in all directions, and its moving speed and moving amount are not constant. For this reason, there has been a problem that the cable, through which the welding line is passed, cannot smoothly follow the movement of the welding machine. Alternatively, in an automatic processing machine that processes a workpiece while moving the processing jig in XY directions, the movement of the processing jig is tracked, and if there is an abnormality in this movement, the processing jig a is moved. Sometimes you want to stop immediately or move it in the opposite direction of the previous movement.
Therefore, an object of the present invention is to provide a means that can easily detect the movement of a moving object such as a self-propelled welding machine or a processing jig in all directions.

[0004]

To this end, the present invention provides X
A swing member that is swingable in the Y direction and a detector that is arranged around the swing member and detects the swing direction of the swing member are provided. It is designed to swing in conjunction with.

[0005]

In the above structure, when the swing member swings due to the movement of the moving object, the detector provided around the swing member detects the swing of the swinging member, and the moving direction of the moving object is detected. Turns out.

[0006]

[Embodiment] An embodiment of the present invention will be described below by taking the case of application to a self-propelled welding machine as an example. FIG. 1 is an overall side view of the welding apparatus, and FIG. 2 is a front view. Reference numeral 1 denotes a self-propelled welding machine, which has casters 2 and performs welding while traveling on a floor surface 3. A welding line feeder 4 has a spool 5 around which the welding line is wound. 6 is a cable,
The welding line feeder 4 and the welding machine 1 are connected to each other, and a welding line, a power supply cord and the like are passed through the inside thereof. Reference numeral 9 is a control device for the welding machine 1 and the feeder 4, and 10 is a support frame.

The support frame 10 is supported by a support column 31 which is erected on a carriage 30. Reference numeral 32 is a caster of the carriage 30, which is driven by the motor 33 and moves in the X direction. 34
Is a frame to which the support frame 10 is attached. A motor 35 is provided on the frame 34. 36 is a roller that is driven by the motor 35 to rotate,
It is placed at 7. 38 is a frame to which the Y rail 37 is fixed, and 39 is a guide roller.

Therefore, when the motor 35 is driven, the roller 36 rolls on the Y rail 37 and the support frame 10 moves in the Y direction. That is, each of the members 30 to 39 constitutes an XY-direction moving device that moves the feeder 4 in the XY directions. Reference numeral 11 denotes a tension detector attached to the side end of the frame 34, and the detailed structure thereof will be described with reference to FIGS. 3 and 4.

Reference numeral 12 is an upper case, and a shaft 13 is hung vertically inside the upper case. A lower case 14 has a shaft 15 penetrating therethrough. The shaft 13 and the shaft 15 are connected by a universal joint 16,
The shaft 15 can swing in all directions. Inside the lower case 14, four rods 17 are vertically oscillated. 18 is a hinge. The rod 17 is arranged around the shaft 15 so as to surround the shaft 15.
A donut plate-shaped plate 19 is attached to the lower end of the plate 5. Further, four cylinders 20 are circumferentially arranged outside the rod 17, and the plungers 21 (21
A to 21D) face the outer surface of the rod 17.

A plate 22 is attached to the lower end of the shaft 15. A hole portion 23 serving as a locking means is opened in the plate body 22, and the cable 6 is inserted into the hole portion 23 and locked. A bracket 24 is attached to the case 12, and the cable 6 is inserted into the hole 25 of the bracket 24.

The present apparatus has the above-mentioned structure, and its operation will be described below. The welding machine 1 performs welding while self-propelled on the floor surface 3, but the feeder 4 must be moved in accordance with the movement of the welding machine 1. If the cable 6 cannot follow smoothly, the cable 6 is towed and pulled by the welding machine 1 and swings (see the chain line in FIG. 3). Then, the plate 19 and the plate body 22 are also swung, and the rod 17 is also swung, so that one of the cylinders 20
The plunger 21A of the cylinder 20A (for example, the cylinder 20A) is pushed by the rod 17, and it is detected that the cable 6 cannot follow the traveling of the welding machine 1. Then, the motor 33 rotates in the forward direction and moves the feeder 4 to the left (X1 direction) in FIG.

On the contrary, when the rod 17 hits the plunger 21B, the motor 33 reversely rotates and moves the feeder 4 to the right (X2 direction) in FIG. Similarly, when the rod 17 hits the plunger 21C or 21D, the motor 35 rotates in the forward or reverse direction, and the feeder 4 turns Y.
Move in 1 direction or Y2 direction. Thus, when the cable 6 is pulled in the XY directions along with the movement of the welding machine 1, this is immediately detected by the tension detector 11, and the feeder 4 follows the movement of the welding machine 1 in the movement direction. Can be moved. The present invention is not limited to the above embodiment, and instead of the cylinder 20, for example, a detector such as a photoelectric element or an electrical short-circuit means may be used.

[0013]

As described above, according to the present invention, a swinging member that is swingable in the XY directions and a detection device that is arranged around the swinging member and detects the swinging direction of the swinging member. Since the oscillating member is provided with a child and is oscillated in association with the movement of the moving object, the moving direction of the moving object can be easily detected.

[Brief description of drawings]

FIG. 1 is an overall side view of a welding device according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view of a tension detector.

FIG. 4 is a plane sectional view of a tension detector.

[Explanation of symbols]

 1 Moving Object 11 Moving Direction Detection Device 15 Swinging Member 20 Detector

Claims (1)

Claim: What is claimed is: 1. A swing member which is swingable in the XY directions, and a detector which is arranged around the swing member and detects the swing direction of the swing member. A moving object moving direction detecting device, comprising: the rocking member, wherein the rocking member is rocked in conjunction with movement of the moving object.