JPS6196457A - Driving device of probe or the like - Google Patents

Abstract

PURPOSE:To save the power of tests by rotating and inclining a probe or the like without rotating a connection tube and compensating the follow-up movement of an inclined angle at the movement of the probe or the like. CONSTITUTION:When an inclination driving motor 10 is rotated in accordance with an angle alpha deg., the rotation is transmitted to a gear 4a on a worm shaft 4 through gears 9, 8, an inclination transmitting shaft 7, a gear 6, and an idle gear 5 and the shaft 4 is rotated, so that a probe mounting eye 1a coupled with a worm wheel 2 is inclined by the angle alpha deg. through the wheel 2 and the probe 1 is set up to a prescribed angle. When a rotational driving motor 15 is rotated in accordance with the angle theta deg. of the probe 1, the rotation is transmitted to a rotational seat 3 through gears 14, 13 and a repeating shaft 12, the seat 3 is rotated by theta deg., and the probe 1 fixed on the rotational sheat 3 is set up to the angle theta deg.. If the motor 10 is stopped at the rotational driving, the gear 5 is not rotated, so that the gear 4a on the shaft 4 set up on the rotational seat 3 is rotated around the gear 5, the wheel 2 is inclined and the inclination becomes an inclination setting error. Therefore, the inclination setting error can be compensated by controlling the rotation of the gear 5 at the rotational driving.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention, in ultrasonic flaw detection, etc., involves injecting ultrasonic waves into an object to be inspected, and detecting the ultrasonic waves that are reflected by internal cracks 14 and the like. This relates to a driving device for a probe, etc. used for the purpose of setting the probe, etc. to face the test object or at an arbitrary angle, and can be set automatically by external human power. It is suitable for remote control.

[Conventional technology]

Generally, in ultrasonic flaw detection, water is used as a couplant between the probe and the object to be inspected. Fi+ is said to be good as well.

Traditionally, this wire probe was often operated manually.
Some cars have to be operated by reaching into the water, and the angle display is submerged in the water, making it difficult to see and operate. .

Therefore, remote control and automation of inspection are desired. However, in this case, the probe drive motor etc. must be placed away from the probe and submerged in water, or placed in a place where it will not be exposed to water. One method would be to install a probe and a moving mechanism on one end of the connecting pipe that is submerged in water, and install a drive system such as a motor on the other end, but it is possible to install a probe and a moving mechanism on one end of the connecting pipe that is submerged in water. Because of the mechanism, it was often difficult to rotate the entire connecting pipe section.

[Purpose of the invention]

The present invention is capable of rotating and tilting an object such as a probe without rotating this connection/q, and 1. This method corrects the simultaneous movement of the tilted part when an object such as a probe moves, which occurs because the connecting tube is not directly rotated, and allows for more effective positioning of objects such as a probe. , the object is to provide a drive device.

[Embodiments of the invention]

@1 is for explaining the probe drive mechanism,
1 is a probe, 1a is a probe mounting seat, 2 is a worm wheel rotatably attached to the tilting axis 3a of the rotation seat,
5 is rotatably attached to one end of the connecting pipe 11;
- Rotating seat, worm bearing part of 4 rotating seats 5bifC@4
b, and one end engages with the worm wheel 2,
The other @ 4b is a worm shaft meshed with an idler gear, 5 is a constant idle gear rotatably attached to the glory wheel bearing 3c of rotation μ3, and 6 is fixed to one end of the inclination transmission shaft and drives the idler gear 5. 7 is an inclination transmission shaft fixed at one end by a gear B meshed with a motor gear, the other end by a tooth tip 6, and rotatably fixed to an inclination bearing part 11a of a connecting pipe; 9 is an inclination transmission shaft; Inclination angle [T gear fixed to motor 10 for #, Connecting pipe 11 with one end fixed to motor case 20 and the other end connected to rotating seat 3 string and inclination @ receiving part 11a, 12 having one end connected to rotating seat 5 Connect and connect the other end to gear 151? :
J@Matched relay shaft, 14 is rotating ffi motor 15
This is a gear that is attached to the gear 15 and meshes with the gear 15.

FIG. 2 is a detailed block m for explaining the control method of the drive device.

16 is for setting and starting the movement angle of each motor 10.15,
17 is a control device for driving the motor and selecting the drive motor, 18 is a driver for the tilting motor, and 19 is a driver for the rotation motor.

Now, in the above configuration, the tilt angle drive motor 10 is
When the rotation t corresponding to α0 is performed, the tilt angle transmission shaft 7 is rotated through the gears 9 and 8, and the gear 6 is rotated. The rotation of the gear 6 is transmitted to the gear on the worm shaft 4 through one rotation of the idle gear 5, which rotates the worm shaft 4, thereby rotating the worm wheel 2. Tilt the feeler mounting seat 1a at an angle α6 in the plane of the paper,
Move probe 1 to the specified corner! Set Jj K.

Further, when the rotary oscillation motor 15 rotates the probe 1 corresponding to 00, this rotation is caused by the gear 14, the gear 13, the middle f.
(It is transmitted as 1i'ill' 12, and the rotation P3 is 00 rotations. Since the probe is fixed to the rotating seat 3, θ
0 angle: However, considering the case where the tilt/pivot motor 10 is stopped during this rotation axis movement, the idle 11f'TIL5 is set so that the trout does not turn once, and the rotation VX:3 is set. Gear 4 on installed worm shaft 4
By rotating (revolving) around the idle gear 5, a is rotated (rotating), and the amount of rotation causes the worm wheel 2 to tilt, which results in a tilt angle setting error.

Therefore, rotate! When pivoting, the idle gear 5 must be controlled to rotate in the same direction by an angle commensurate with the rotating cylinder.

In the present invention, the control device shown in Figure 2 drives only the tilt drive motor during tilt drive, and in the case of rotation drive, the rotary drive motor and the rotary drive motor make one rotation. It is as if it were to be done.

Now, set the reduction ratio of the worm gear (4, 2) to 1:GR.

Then, the tooth ML60 rotation angle α when the inclination angle (α0) is
It is expressed as 1c × α0 α1c = □.

G.R.

Further, the rotation angle θ゜ during rotational driving is as follows.

Therefore, when the minimum t of the rotation angle and the tilt angle are set to be the same, the rotation angle may be corrected so that the following equation is satisfied.

It is clear that the gears used in the actual fIft491 can be replaced with other similar rotating means VC.

It is also clear that the object to be driven may be an object that accompanies the probe at all times. [Effects of the Present Invention] As explained above, according to the present invention, it is possible to use an object that accompanies the probe at all times. The positioning and movement of objects such as probes, which was previously done by hand, can now be done with great precision on the control panel.

This is possible if the shape of each fractured object is known in advance.
It is possible to automate childcare by automatically changing the setting angle from time to time. fffi, if the shape is unknown, remote control such as moving the probe without referring to the surface signal from the inertial object becomes possible, which can be expected to save labor during inspection. .

[Brief explanation of the drawing]

1st- is a diagram showing an embodiment of the present invention, 20th is a motor,
This is the block opening indicating the axis. Kuninaka 1: Probe 2: Rotating seat 3: Worm shaft 4: Worm heat wheel 5: Idle gear 6; Gear 7: Inclination transmission shaft 8: Gear 9: Gear 10; Inclination drive motor 11: Connecting tube 12: Middle @ shaft 1S; Gear 14: Gear 15: Rotation 1iA motor 16: Operation panel 17: Control a [position

Claims (1)

[Scope of Claims] A driving device that tilts an object such as a probe with respect to a horizontal plane using a first rotation axis (7) and rotates it within a horizontal plane using a second rotation axis (11). The first rotating means (6) is connected to the first rotating shaft, and the third rotating means is connected to the second rotating shaft via the connecting member (3).
a rotational shaft (4b), a second rotational means (4a) connected to the third rotational shaft, and a second rotational shaft located at the center of the rotational means connected to the first and second rotational means. and a free idler (5), and a holding means (2, 3a) connected to the second and third rotating shafts and holding an object such as a probe so as to be rotatable and tiltable. Driving a probe, etc., characterized in that when rotating an object such as a probe in a horizontal plane, a first rotation axis is rotated by a predetermined amount according to a rotation axis of a second rotation axis. Device.