JP2000111329A - Automatic plate thickness measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus which can freely change a measuring part position by self-running on the surface of a slant or vertical steel plate, polish the object part position of a steel plate to be measured, spread liquid of grease or the like, and automatically measure the plate thickness. SOLUTION: A polishing mechanism 41 polishing a plate type body, a coating mechanism 43 spreading liquid on the plate type body, and an ultrasonic probe 45 measuring the thickness of a plane type body are collectively formed in a unified body with a moving body 1 capable of self-running along the surface of the plate type body. A transferring mechanism 34 which sequentially replaces and positions the polishing mechanism 41, the spreading mechanism 43 and the ultrasonic probe 45 in the same part position on the surface of the plate type body, and a magnet for making the plate type body attract the moving body 1 are installed in the moving body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thickness measuring device, and more particularly to an apparatus for measuring the thickness of a plate.

[0002]

2. Description of the Related Art Conventionally, the thickness of various devices has been measured. One of them is an electric dust collector. An electric precipitator usually has a plurality of sets of dust collecting electrode units in which a net-shaped discharge electrode and a plate-shaped dust collecting electrode are alternately arranged in parallel inside a housing forming a gas flow path, and the gas is collected. The dust is circulated between the dust collecting electrodes to collect dust on the dust collecting electrodes.

In such an electrostatic precipitator, since a corrosive gas (such as SO 2) flows inside the housing, the steel plate forming the housing is locally eroded from the inner surface and becomes gradually thinner. Go. Therefore, the thickness of this steel sheet is measured by a thickness measuring device using an ultrasonic sensor, such as when the measurer enters the inside of the housing regularly, and predicts when a hole will be opened in the eroded part. Was.

[0004]

However, the inside of such a housing is a place where a large amount of dust is present, and is not a health-friendly place for a person to work. Further, the work of measuring the thickness of the steel plate at the upper part of the housing was a work at a high place, and was a dangerous work.

In order to solve the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an automatic plate capable of automatically measuring the thickness of a steel plate constituting a housing of an electric dust collector or the like from outside or inside in a plate thickness measuring device. It is intended to provide a thickness measuring device. Further, it is another object of the present invention to provide an automatic thickness measuring apparatus capable of freely changing a measurement site by making it self-propellable on the surface of an inclined or vertical steel plate.

[0006]

In order to achieve the above object, an automatic thickness measuring apparatus according to the present invention comprises: (1) a polishing mechanism for polishing a plate, and applying a liquid to the plate. A coating mechanism, and an ultrasonic probe for measuring the thickness of the plate-like body, which are integrally provided on a movable body capable of self-running along the surface of the plate-like body, and the polishing mechanism A transfer mechanism that sequentially replaces and positions the coating mechanism and the ultrasonic probe on the same site on the surface of the plate-like body,
An automatic plate thickness measurement device is provided on the moving body, the magnet being adapted to attract the moving body to the plate-like body. (2) In the automatic thickness measuring apparatus of (1), the transfer mechanism is provided with a belt-like body in which the polishing mechanism, the coating mechanism, and the ultrasonic probe are arranged side by side. This is an automatic plate thickness measuring device. (3) In the automatic thickness measuring apparatus according to (1) or (2), the coating mechanism may be configured such that a portion in contact with a surface of the plate is a spongy body. It is a device.

The transfer mechanism may be provided with a disk, a column, or a cylinder in which the polishing mechanism, the coating mechanism, and the ultrasonic probe are juxtaposed. In addition, the operation of the automatic plate thickness measuring device is performed by providing an operation device separate from the moving object, transmitting an operation signal from the operation device to the moving object by wireless or wired communication, and operating the operation device. It is desirable to carry out.

[0008]

As described above, the present invention provides a polishing mechanism for polishing a plate, an application mechanism for applying a liquid to the plate, and an ultrasonic probe for measuring the thickness of the plate. , Are provided integrally with a movable body that is capable of self-running along the surface of the plate-like body, and the polishing mechanism, the coating mechanism, and the ultrasonic probe are the same on the surface of the plate-like body. Since the transfer mechanism that sequentially replaces and positions on the part and the magnet that attracts the moving body to the plate-like body are provided on the moving body, the plate-like body can be freely measured up to the measurement target site. By traveling, the surface of the relevant portion of the plate-shaped body is polished, a liquid is applied, and the ultrasonic probe is brought into contact with the plate to measure the plate thickness, and the plate-shaped body is inclined or vertical. Even if it is a plane, it is possible to climb the slope.

Further, since the transfer mechanism has a structure in which the polishing mechanism, the coating mechanism, and the ultrasonic probe are provided side by side, the belt is moved in the longitudinal direction thereof. In addition, the polishing mechanism, the coating mechanism, and the ultrasonic probe can be quickly replaced and positioned on the same portion of the surface of the plate-like body. Further, since the coating mechanism is configured such that a portion in contact with the surface of the plate-like body is a spongy body, the liquid can be quickly applied to a predetermined range.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the automatic thickness measuring apparatus according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the present invention, and FIG.
FIG. 4 is a use state diagram of the embodiment of the present invention. Further, FIG. 3 is a front view of a portion related to the thickness measurement of the moving body, FIG. 4 is a plan view of a portion related to the thickness measurement of the moving body, and FIG. It is AA sectional drawing of such a part.

As shown in FIG. 1, an automatic thickness measuring apparatus according to an embodiment of the present invention is roughly divided into a moving body 1 and a moving body which move along a plate to be measured and directly measure the thickness. 1
The operation panel 5 for measuring the thickness of the moving body 1 is provided separately from the moving body 1, and is operated separately from the moving body 1 to operate the carriage 21 of the moving body 1. It consists of a bogie operation panel 6.

The panel thickness measuring operation panel 5 is connected to a power / signal cable 38 and a signal cable 39, and the bogie operation panel 6 is connected to a power / signal cable 38. As will be described later, the power / signal cable 38 and the signal cable are connected. The operation of each mechanism related to the traveling of the moving body 1 and the thickness measurement is controlled via 39, and a current necessary for the operation is supplied.

The moving body 1 is driven by a wheel 29 using a motor (not shown) provided inside the carriage 21 as a drive source. Further, a permanent magnet (not shown) is provided inside the carriage 21 so that a magnetic force extends toward the lower surface of the carriage 21, that is, an attraction force is applied. By rotating the knob 24, the carriage 21 is moved up and down in the carriage 21, so that the strength of the magnetic force in the lower surface direction of the carriage 21 can be appropriately adjusted. In addition,
A current necessary for driving the motor and a signal for controlling the driving are supplied and transmitted from the bogie operation panel 6 via a power / signal cable 38.

Therefore, as shown in FIG.
If the wheel 29 is brought into contact with the casing 91 of the electric dust collector 9 by holding the handle 25 provided on the upper surface of the dust collector 9 and the magnetic force adjusting knob 24 is rotated to appropriately increase the magnetic force, the bogie 21 is It is possible to adsorb on 91. Therefore, by moving the carriage 21 by itself while being adsorbed on the housing 91, the moving body 1 can be moved up and down along the surface of the housing 91 as shown by the arrow 72.

An air pipe 26,
An air compressor 22 capable of supplying air to the outside via a solenoid valve 27 and a solenoid valve 28, a grease tank 23 capable of supplying grease to the outside via a grease pipe 37 are mounted, and a transfer mechanism 34 is provided on one surface of the peripheral side surface. Have been.
The current necessary for the operation of the air compressor 22 and the operation of the electromagnetic valve 28 and a signal for controlling the operation are supplied and sent from the plate thickness measuring operation panel 5 via a power / signal cable 38.

The transfer mechanism 34 has two rotating shafts 46.
A belt-shaped timing belt 33 is provided around the a and b, and the stepping motor 31 is provided above the rotating shaft 46a in connection with the rotating shaft 46a. Therefore, the timing belt 33 can be rotated by the stepping motor 31. Further, the DC motor 32 and the grease nozzle 4 are provided on the timing belt 33 in a range that is approximately one-fourth of the circumferential length.
3. The ultrasonic sensors 45 are provided with a gap therebetween. As shown in FIG. 5, a plate cam 47 is provided on the bottom plate 48 of the transfer mechanism 34, and assists the transfer of the DC motor 32, the grease nozzle 43, and the ultrasonic sensor 45 as described later. In addition, near the center of the plate cam 47, as shown in FIG.
Is provided.

A current necessary for driving the stepping motor 31 and a signal for controlling the driving are supplied and transmitted via a power / signal cable 38. As shown in FIG. 3, the movable range of the timing belt 33 is up to the position where the DC motor 32 is located at the tip of the arrow of the movable range 73. When the DC motor 32 moves in the opposite direction, the ultrasonic sensor It is up to the point where 45 is located at the tip of the arrow of the movable range 74.

The DC motor 32 is fixed to a supporting plate 491 for directly supporting the DC motor 32, a supporting plate 492 for supporting the supporting plate 491 in a movable state, and an outer peripheral surface of the timing belt 33. The fixing belt 495 is attached to the timing belt 33. Fixing plate 4
95 is fixed to the timing belt 33, and the support plate 492 is fixed to a fixed plate 495.

The support plate 491 is supported by being sandwiched by the support plate 492, and
It is provided slidably with respect to 91. At the same time, a roller 493 is provided at the lower end of the support plate 492, and can roll on the plate cam 47. In addition, the roller 493 supports the support plate 491 from below. Further, in a state where the spring 494 is extended from its natural length, one end is a support plate 491 and the other end is a fixed plate 495.
It is provided in a state of being fixed to. Therefore, the support plate 4
A downward tensile stress is applied to 91 by a spring 494.

Therefore, by the rotation of the timing belt 33, the DC motor 32 is transported in the horizontal direction while being assisted by the rolling of the rollers 493. However, since the plate cam 47 is provided with the notch 471, when the roller 493 rolls to this position, the roller 493 falls into the notch 471. At the same time, when the roller 493 falls, the support plate 492
The DC motor 32, which is supported via, also moves downward. After the roller 493 has fallen, the timing belt 33 is further rotated so that the notch 47
It is possible to escape from 1.

On the lower surface of the housing of the DC motor 32,
The rotating brush 41 is provided downwardly in connection with the shaft of the DC motor 32, and the rotating brush 41 can be rotated by the DC motor 32. Further, the roller 49
In a state where 3 has fallen, a rotating brush 41 described later comes into contact with the casing constituting plate 92, but is pressed to strongly contact the casing constituting plate 92 by the stress applied from the spring 494. Therefore, in this state, the rotation of the rotating brush 41 can remove the rust or the like of the plate abutting on this portion and polish the plate.

The current required for the rotating and raising / lowering operations of the rotating brush 41 and the signals for controlling these operations are supplied and transmitted via a power / signal cable 38. A flexible air pipe 26 is attached to the side surface of the housing of the DC motor 32 so as to hang down from above, and an air nozzle 42 is provided at the tip of the hanging air pipe 26 toward the rotary brush 41. It is provided slightly bent. The end opposite to the air nozzle 42 is connected to the air compressor 22 via a solenoid valve 28, so that air can be supplied from the air compressor 22.

Therefore, the air supplied from the air compressor 22 can be ejected from the air nozzle 42 through the air pipe 26 and the electromagnetic valve 28. Therefore, dust on the plate to be measured,
Air nozzle 42 removes rust etc.
Can be scattered by the air ejected from the air.

The grease nozzle 43 is connected to the support 36
And is attached vertically to the timing belt 33 via the. A sponge 44 is provided at the lower end of the grease nozzle 43, and grease flowing out of the grease nozzle 43 can be made to infiltrate the sponge 44. One end of a flexible grease pipe 37 is connected to the upper end of the grease nozzle 43. Further, the other end of the grease pipe 37 is connected to the grease tank 23. In addition, the grease tank 23 is connected to the air compressor 2 via an air pipe 27 and a solenoid valve 28.
2, and can supply air from the air compressor 22.

Further, as in the case of the rotating brush 41,
The grease nozzle 43 is attached to the timing belt 33 by a support plate interposed between the timing belts 33. Further, since a roller is provided at the lower end of the support plate, when the roller rolls into the notch of the plate cam 47, the roller falls and a sponge provided at the tip of the grease nozzle 43 is formed. 44 comes into contact with the housing constituting plate 92. Note that the sponge 44 allows grease to adhere to the housing component plate 92 without strongly contacting the housing component plate 92. Therefore, a spring is provided on the support plate of the grease nozzle 43. Absent.

Therefore, it is possible to apply the grease infiltrating the sponge 44 onto the plate to be measured. The ultrasonic sensor 45 has a signal cable 39 connected to the upper end thereof, and the other end of the signal cable connected to the thickness-measuring operation panel 5 so as to perform operations and measurement data relating to the thickness measurement. Can be transmitted and received.

Further, the support 35 of the ultrasonic sensor 45
Is attached to the timing belt 33 by the same mechanism as that of the rotary brush 41, so that when the roller falls into the notch of the plate cam 47, the roller strongly contacts the housing component plate 92. Therefore, in this state, it is possible to transmit and receive ultrasonic waves through the grease applied by the sponge 44 to measure the plate thickness.

The rotating brush 41 and the air nozzle 4
2. The grease nozzle 43 and the ultrasonic sensor 45 are provided at the same gap as the timing belt 33. Therefore, as shown in FIG.
Is rotated, the rotary brush 41, the air nozzle 42, and the grease nozzle 43 move on the rotation locus 76.

Therefore, the plate thickness measuring portion 93 is connected to the plate cam 4.
7, the timing belt 33 is rotated and stopped appropriately, and the rollers provided on the support plates of the rotating brush 41, the air nozzle 42 and the grease nozzle are cut out of the plate cam 47. The rotary brush 41, the air nozzle 42, the grease nozzle 43, and the ultrasonic sensor 45 are sequentially dropped on the
It is possible to place them sequentially on top. At the same time, the tip of the rotating brush 41, the sponge 44, and the ultrasonic sensor 45 can be brought into contact with the plate thickness measuring portion 93.

Therefore, (1) the carriage 21 is run, and the plate thickness measuring portion 93 is positioned immediately before the notch of the plate cam 47 as shown in FIG. (2) The timing belt 33 is rotated, and the rotating brush 4
1 is moved toward the thickness measurement site 93. (3) When the rotating brush 41 moves onto the plate thickness measuring portion 93, the roller 493 falls into the notch 471, and the rotating brush 41 comes into contact with the plate thickness measuring portion 93. The timing belt 33 is stopped at the same time when the roller 493 falls into the notch 471. (4) The plate thickness measurement site 93 is polished by rotating the rotating brush 41. (5) The air is blown out from the air nozzle 42 to scatter rust and the like separated by polishing. (6) The timing belt 33 is rotated, and the grease nozzle 43 is moved toward the thickness measurement site 93. (7) When the grease nozzle 43 moves onto the plate thickness measurement site 93, the roller of the support plate of the grease nozzle 43 falls into the notch 471, and the sponge 44 comes into contact with the plate thickness measurement site 93. The timing belt 33 is stopped at the same time when the roller falls into the notch 471. (8) By sending grease from the grease pipe 37 to the grease nozzle 43, the sponge 44 is infiltrated with the grease.
Apply grease to the (9) The timing belt 33 is rotated, and the ultrasonic sensor 45 is moved toward the plate thickness measurement site 93. (10) When the ultrasonic sensor 45 moves onto the plate thickness measurement site 93, the roller of the support plate of the ultrasonic sensor 45 falls into the notch 471, and the ultrasonic sensor 45 moves to the plate thickness measurement site 93. Abut The timing belt 33 is stopped at the same time when the roller falls into the notch 471. (11) Ultrasonic waves are transmitted and received by the ultrasonic sensor 45, and the plate thickness is measured. (12) The timing belt 33 is reversely rotated to the initial position. By performing a series of these operations, the thickness of the housing 91 to be measured can be measured. In addition, by repeating this operation, it is possible to measure the thickness of a plurality of portions of the housing 91.

Next, a specific procedure for measuring the plate thickness according to this embodiment will be described. First, the moving body 1 is placed on a plate whose thickness is to be measured. When this plate is inclined or vertical, as shown in FIG. 2, the magnetic force of a permanent magnet provided inside the carriage 21 is used for measurement of the housing 91 of the electrostatic precipitator 9. Attach. At this time, the strength of the magnetic force is appropriately adjusted by the magnetic force adjustment knob 24. Further, the position where the moving body 1 is attached is desirably a position where the moving body 1 can be easily moved to the plate thickness measurement site 93.

Next, by operating the plate thickness measuring operation panel 5 and the bogie operation panel 6, the above-mentioned (1) to (12) are performed.
Perform the operations up to. If there are multiple locations to be measured,
Repeat these operations. Finally, the moving body 1 is moved to a position where it can be easily collected and collected. In the case where the sticking is performed using the magnetic force of the permanent magnet provided inside the carriage 21, the magnetic force is adjusted by adjusting the magnetic force adjusting knob 24, and the moving body 1 is peeled from the housing 91 of the electric dust collector 9.

By measuring the plate thickness in accordance with the above-described procedure, it is possible to use a high altitude,
Measurement work can be easily performed even in a narrow place. Further, polishing of the plate to be measured, application of grease, and ultrasonic measurement can be continuously performed with the moving body stopped.

In the description of the above embodiment,
Although the electric precipitator is adopted as an object of the plate thickness measurement, the plate thickness can be measured not only for the electric precipitator but also for other objects. Further, the moving body may be operated by a radio signal transmitted from the plate thickness measuring operation panel and the bogie operation panel. Furthermore, a power supply for driving the carriage and performing operations related to the thickness measurement may be mounted on the carriage. Further, the transfer mechanism may be mounted on a cart. Further, the transfer mechanism may be configured to cover the carriage from above. Further, the timing belt does not have to be formed in an annular shape as long as the timing belt has a length sufficient to attach the rotating brush, the air nozzle, the grease nozzle, and the ultrasonic sensor. In addition, the rotating brush, the air nozzle, the grease nozzle, and the ultrasonic sensor may be provided with a disk, a cylinder, a cylinder, or a similar shape.

[0035]

As described above, the present invention provides a polishing mechanism for polishing a plate, an application mechanism for applying a liquid to the plate, and an ultrasonic wave for measuring the thickness of the plate. And a probe, which is provided integrally with a movable body which is capable of self-running along the surface of the plate-like body, and wherein the polishing mechanism, the coating mechanism, and the ultrasonic probe are connected to the plate-like body. The transfer mechanism that sequentially replaces and positions the same on the same surface of the surface, and a magnet that attracts the moving body to the plate-like body are configured to be provided on the moving body. There is no need to perform the work of measurement, and the work can be performed safely and efficiently. In addition, since a single device can consistently perform from the polishing of the measurement target portion to the measurement, the burden of prior work such as polishing of the measurement target is reduced. Therefore, the work efficiency of the thickness measurement can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a diagram illustrating a use state of the embodiment of the present invention.

FIG. 3 is a front view of a portion related to the thickness measurement of the moving body.

FIG. 4 is a plan view of a portion related to a thickness measurement of a moving body.

FIG. 5 is a sectional view taken along line AA of a portion related to a moving mechanism of the moving body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving body 21 Cart 22 Air compressor 23 Grease tank 24 Magnetic force adjustment knob 25 Handle 26 Air pipe 27 Air pipe 28 Solenoid valve 29 Wheel 31 Stepping motor 32 DC motor 33 Timing belt 34 Transfer mechanism 35 Supporter 36 Supporter 37 Grease pipe 38 Power / signal cable 39 Signal cable 41 Rotating brush 42 Air nozzle 43 Grease nozzle 44 Sponge 45 Ultrasonic sensor 46a Rotating shaft 46b Rotating shaft 47 Plate cam 471 Notch portion 48 Bottom plate 491 Support plate 492 Support plate 493 Roller 494 Spring 495 Fixing plate 5 Thickness measurement operation panel 6 Bogie operation panel 71 Running direction 72 Elevating direction 73 Movable range 74 Movable range 75 Downward direction 76 Rotation trajectory 9 Electric precipitator 91 Housing 92 Housing configuration plate 93 Plate Thickness measurement site

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2F068 AA28 BB01 BB23 CC04 CC15 DD07 DD13 FF03 FF12 FF25 JJ11 KK02 KK03 KK04 KK06 KK12 LL02 NN01 NN04 SS02 TT22 2G047 AB04 AD03 BC02 BC11 DB03 EA19 GJ02

Claims (3)

[Claims] A polishing mechanism for polishing a plate-like body, an application mechanism for applying a liquid to the plate-like body, and an ultrasonic probe for measuring a thickness of the plate-like body. And the polishing mechanism, the coating mechanism, and the ultrasonic probe are sequentially replaced on the same portion of the surface of the plate-like body while being integrally provided on a movable body capable of self-propelling along the surface of the plate-like body. A transfer mechanism, and a magnet for attracting the moving body to the plate-like body,
Is provided on the movable body. 2. The automatic thickness measurement according to claim 1, wherein the transfer mechanism includes a belt-like body in which the polishing mechanism, the coating mechanism, and the ultrasonic probe are arranged side by side. apparatus. 3. The apparatus according to claim 1, wherein the coating mechanism has a spongy body at a portion in contact with a surface of the plate-like body.
Alternatively, the automatic thickness measuring apparatus according to claim 2.