JPH04258377A - Profiling device - Google Patents

Abstract

PURPOSE:To perform profiling with high accuracy on the profiling device of a workpiece having the curved surface such as an end plate according to this invention. CONSTITUTION:A bifurcate detector 25 is provided freely rotatably in the cross direction of thickness of the end plate 15 on a flexible frame 22 and the detector 25 sandwiches the plate from both sides via a gap. An angle sensor 30 to detect a deflection angle and an angle of the detector is provided. When the detector 25 is brought into contact by rotation of the end plate 15, the frame 22 is moved by a servomotor 21 so that a detection angle of the angle sensor 30 is diminished to zero and a cutting torch 40 is moved.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for copying an object having a curved surface such as a mirror plate.

0002

2. Description of the Related Art Conventionally, a method has been used to trace only one of the outer surface and inner surface of a mirror plate, which is a typical example of a molded product having a curved surface. (Welding Handbook No. 25
Pages 9 to 260 March 31, 1978 Maruzen (
(Issued by)

0003

[Problems to be Solved by the Invention] According to the representative example described above, since the profiling surface is only on either the outer surface or the inner surface, it is necessary for the contact to constantly press the profiling surface. Therefore, it is difficult to accurately copy the curved surface shape by sensing minute irregularities on the copying surface. In addition, since the profiling surface has a curved surface in response to the force of the contact pushing against the profiling surface, the direction of the reaction force from the profiling surface is not on the same line of action; If it follows the inner surface, it will point upwards, creating an extra force on the sensor, which will significantly reduce sensing accuracy and the life of the sensor and contact.

An object of the present invention is to obtain highly accurate tracing.

[0005]

[Means for Solving the Problems] The present invention includes a bifurcated detector that narrows the workpiece from both sides in the plate thickness direction through a gap;
a telescopic frame in which the detector is rotatably installed in the plate thickness direction; an angle sensor for detecting the deflection direction and deflection angle of the detector; and the telescopic frame and processing so that the detection angle of the angle sensor is zero. A control device for moving the means.

[0006]

[Operation] According to the present invention, since the detectors are disposed on both sides of the tracing surface with an arbitrary clearance, it is possible to imitate the original curved surface shape without sensing the unevenness of the tracing surface. Then, the position is detected by an angle sensor provided on the detector, and the processing means is moved.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A cutting device according to an embodiment of the present invention will be explained with reference to FIGS. 1 to 3.

In FIG. 3, this cutting device cuts the end of a mirror plate 15 set on a turntable 10 at a predetermined angle. The cutting device includes a copying device 20, a cutting torch 40 installed in the copying device 20, and a copying device 2.
It consists of a manipulator 50 that sets the height direction position and horizontal direction position of 0.

In FIGS. 1 and 2, the copying device 20 includes a telescopic frame 22 that is moved in the horizontal direction by a servo motor 21, and a detector that is rotatably installed at the tip of the telescopic frame 22 in the thickness direction of the mirror plate 15. It consists of 25. The detector 25 includes a bifurcated detector 26 and an angle sensor 30 that detects the deflection angle and direction of the detector 26. The detector 26 has a bifurcated shape, and has rotatable contacts 27, 27 at its lower ends, respectively. One frame 26a of the bifurcated detector 26 is movable in the thickness direction of the mirror plate 15 with respect to the other frame 26b by an adjustment knob 28.

A cutting torch 40 is suspended from the telescoping frame 22 via a mounting device 45. cutting torch 40
is adjustable in height, horizontal position, and angle. In this configuration, the manipulator 50 is set so that the end of the end plate 15 is inserted into the bifurcated detector 26. Also, a predetermined gap L is provided between each of the contacts 27 and the mirror plate 15. Knob 2 to have L
Operate 8. Also, the cutting torch 40 is set at a predetermined position.

In this state, the turntable 10 is driven to rotate the end plate 15.

When the mirror plate 15 comes into contact with one of the contacts 27, the angle sensor 30 can detect the deflection direction and angle of the detector 25. A control device (not shown) inputting the data from the angle sensor 30 drives the servo motor 21 so that the angle detected by the detector 25 becomes zero. This causes the detector 25 and the cutting torch 40 to move in the horizontal direction (board thickness direction).

According to this embodiment, the original curved shape of the end plate can be imitated regardless of the roundness accuracy and surface condition of the rotating end plate, and a uniform and highly accurate groove shape can be obtained. , the life of the contactor 6 is also significantly improved.

[0014]

[Effects of the Invention] According to the present invention, copying can be performed without applying a pressing force from a contactor, and highly accurate copying can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a front view of a copying device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a front view of a cutting device equipped with the copying device of FIG. 1;

[Explanation of symbols]

10... Turntable, 15... End plate, 20... Copying device,
21... Servo motor, 22... Telescopic frame, 25... Detector, 26... Detector, 30... Angle sensor, 40... Cutting torch.

Claims (1)

[Claims] 1. A bifurcated detector that narrows a workpiece from both sides in the plate thickness direction through a gap, a telescopic frame in which the detector is installed so as to be rotatable in the plate thickness direction, and the detector. A copying device comprising: an angle sensor that detects a deflection direction and a deflection angle; and a control device that moves the telescoping frame and processing means so that the detected angle of the angle sensor becomes zero.