JPH01259272A - Inspecting device for arrester - Google Patents

Abstract

PURPOSE:To safely and automatically perform a discharge test for an arrester by positioning plural arresters on arrester jig and constituting so that the discharge test is made for each arrester row with an XY transfer table. CONSTITUTION:Plural enclosure parts 24 are formed on the arrester jig 22, and each arrester 28 are positioned and enclosed in the plural enclosure parts 24. Next, the jig 22 in which the arresters are enclosed is mounted on an upper board 20A of the table 20. The aforementioned arresters are positioned between a lower electrode 32 and an upper electrode 36 for the discharge by driving the table 20 in the X-direction and Y-direction. Then, the discharge test is made for a first row in the X-direction in the manner that the table 20 is transferred in the X, Y-directions in order with the row interval which the arresters are enclosed. After that, the discharge test is made for each row by transferring the table 20 gradually in the X, Y directions.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an arrester inspection device, and more particularly to an arrester inspection device capable of automatically inspecting good and defective arresters. .

(Prior art and its problems) Conventionally, arresters were inspected by manually placing the product in a discharge tester and visually checking whether a discharge occurred by applying a current. .

However, during discharge, a considerably high voltage was applied to the arrester, making the work fraught with danger. In addition, inspections must be carried out by workers all the time, leading to an increase in inspection costs. Furthermore, during the inspection, the operator performs the inspection visually, resulting in a lack of reliability. Furthermore, since the arrester is small, it is difficult to handle and the work is troublesome.

Accordingly, one object of the present invention is to provide an arrester inspection device that has high reliability and is capable of automatic inspection.

(Means for Solving the Problems) In order to solve the above problems, the present invention includes the following configuration.

That is, the arrester storage plate has a plurality of storage parts for storing the arrester, and a through hole for inserting the lower discharge electrode is bored in the inner bottom surface of each storage part, and the arrester storage plate has a plurality of storage parts for storing the arrester. A discharge device that performs a discharge test by holding an arrester from above and below, and which has an upper discharge electrode and a lower discharge electrode; and moving means for moving so as to be sequentially located in between.

Alternatively, the discharge test may be performed by holding and holding the arrester with the upper and lower discharge electrodes in a state in which it is slightly floating above the arrester housing plate.

Further, a control means includes a detection means for detecting the presence or absence of discharge when the arrester held by the upper and lower discharge electrodes is energized, and a memory for storing the detection result of the detection means in correspondence with each arrester; The apparatus may also include an arrester extraction device that is controlled by the control means based on the detection result of the detection means and takes out defective or non-defective arresters from the arrester storage plate.

(effect) Next, the operation of the present invention will be described.

The arrester stored in the storage section of the arrester storage board,
Discharge test 1 ~ by holding the upper electrode for discharge and the lower electrode for discharge
I do. Further, a plurality of arresters housed in the arrester housing plate are operated by the moving means so as to be sequentially positioned between the upper and lower electrodes for discharge, and a discharge test is sequentially performed.

In addition, in order to prevent electrical conduction with other arresters and damage to the arrester housing plate during the discharge test, the discharge test is performed with the arrester held slightly above the arrester housing plate by sandwiching it between the upper and lower discharge electrodes.

Further, a detection means detects whether or not a discharge occurs when the arrester held by the upper and lower discharge electrodes is energized.

Based on the detection results of the detection means, control is performed by a control means equipped with a memory that stores the detection results of the detection means in correspondence with each arrester, and a defective arrester or a non-defective arrester is taken out from the arrester storage board by an arrester take-out device. .

(Embodiments) Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic front view showing the mechanism of the arrester inspection device.

Two round bar-shaped guide rails 12 (only one is shown) are installed on side walls 10a and 10b that stand up on the base 10 and face each other. The moving plate 14 is attached to this guide rail 12.
A guide member] 3 provided on the lower surface of the guide member is fitted. Two guide rails 16 are installed on the movable plate 14 so as to be orthogonal to the guide rail 12 on a wall 14a (only one of which is shown) that stands up on the movable plays 1 to 14.

A guide member 17 that is slidable along the guide rail 16 is provided, and this guide member 17 supports a table 20.

That is, the table 20 is formed as an XY child table that can move in the XY force directions with respect to the base 1o.

The table 20 consists of an upper plate 20A and a lower plate 2OB, and the upper plate 20A has a jig 2 in which a plurality of arresters are housed.
2 can be installed.

FIG. 2 is a longitudinal sectional view showing a state in which a flat arrester is housed in a jig 22.

This flat arrester 26 has a grounding electrode 26 on the bottom.
a is formed, and two electrodes 26b, 26b are formed on the upper surface.

A through hole 24a is formed in the inner bottom surface of the concave housing portion 24 that houses the arrester 26 of the jig 22.

The arrester 26 housed in the storage section 24 has a grounding electrode 26a on the bottom side and two electrodes 26b on the top side.
, 26b are exposed.

Note that the shape of the storage portion 24 is provided in a shape that follows the outer shape of the arrester 26 in order to position and store the arrester 26. Further, the storage portions 24 are provided on the jig 22 in a plurality of rows and columns.

As shown in FIG. 1, when the jig 22 containing a plurality of arresters 26 is placed on the upper plate 20A, the through-holes 24a formed in each storage section 24 of the jig 22 are prevented from being closed. An opening 20a is formed in the upper plate 20A.

A lower discharge electrode 32 is arranged between the upper plate 20A and the lower plate 20B. This discharge downstream electrode 32 is fixed on a vertically movable arm 34, and is provided so as to be able to enter into the through hole 24a of the jig 22 when the vertically movable arm 34 rises.

The vertically movable arm 34 is connected at one end to, for example, an active cylinder (not shown) and moves vertically.

Further, an upper discharge electrode 36 is disposed above the jig 22 at a position opposite to the lower discharge electrode. Flat arrester 2
6, two electrodes 26b.

Two discharge upper electrodes 36 (only one shown) are provided corresponding to both of the discharge electrodes 26b. The upper electrode 36 for discharge is slidably provided on a vertical moving plate 38 connected to an active cylinder (not shown), and when lowered, the upper electrode 36 for discharge moves the arrester 26 in the corresponding position to the upper electrode 36 for the raised discharge. It can be held between the lower electrode 32 and the lower electrode 32. Note that the upper discharge electrode 36
The electrode portion is designed to clamp the arrester with a constant force by the elasticity of an appropriate spring so as not to destroy the arrester.

A device for taking out the arrester 26 is provided above the table 20. That is, a rotating arm 42 is provided at the tip of a rotating shaft 40a of the rotating cylinder 40, and a suction pad 44 is further provided at the tip of the rotating arm 42. The suction pad 44 is connected to a negative pressure source (not shown) and is configured to be able to suction the arrester 26.

Next, the operation of the above-mentioned arrester inspection device will be explained.

The arrester 26 is positioned and stored in each storage section 24 of the jig 22, and the jig 22 is mounted on the upper plate 20A.

The arrester 26 can be stored in the jig 22 continuously and efficiently by a separate manual operation.

The arrester 26 has an electrode 2 on a ceramic insulating body.
6a, 26b, and 26b are formed by silver soldering.

As the jig 22, a carbon jig used for silver brazing the insulating body and the electrode may be used as is. That is, the ceramic insulating body, the silver solder, and the electrode are placed in predetermined positions in the storage portion 24 of the carbon jig, and the electrode is soldered with silver.

In this way, since the arresters are arranged in an orderly manner in the jig 22, the above-described arrester manufacturing process and the arrester inspection described below can be performed continuously using one carbon jig.

The discharge test of the arrester 26 is performed sequentially for each row of arresters housed in the jig 22.

That is, the table 20 is moved so that the arrester 26 located at a part of a predetermined corner of the rows and columns of arresters 26 stored on the jig 22 is located between the pair of upper and lower discharge electrodes 32 and 36. put.

Then, for example, the table 20 is sequentially moved in the XX direction at intervals of the rows in which the arresters are stored, and a discharge test is performed on the arresters 26 in the first row in the X direction.When the discharge test on the first row is completed, the arresters 26 in the next row are In order to conduct a discharge test, the table 20 is moved one row in the X direction, and then forwarded in the X direction at predetermined intervals to perform a discharge test on the next row. In this way, a discharge test can be performed on all arrays of arresters.

The table 20 can be moved in the XX direction by moving the moving plate 14 in the X direction along the guide rail 12 and by moving the table 20 in the X direction along the guide rail 16.

At that time, for example, threaded rods are provided parallel to the guide rails 12 and 16, and by rotating these threaded rods, the moving plate 14 and the table 20 are respectively moved, and the rotation of these screw rods is controlled by a stepping motor. By driving the table 20, it is possible to precisely move the table 20 in the XX direction.

In the discharge test, the lower mold for discharge @3 is
2 is raised, and the vertical movable plate 38 is lowered by a drive cylinder (not shown), the arrester 26 is held between the lower discharge electrode 32 and the upper discharge electrode 36, and the jig 22 is then lowered.
A discharge test is performed by holding the arrester 26 at a position slightly above the top surface and applying current to the upper and lower discharge electrodes 36 and 32.
The reason why the discharge test is performed at a position floating above the jig 22 is to prevent electrical conduction between the jig 22 and other arresters 26 and damage to the jig 22.

Note that the presence or absence of discharge is determined by detecting means such as an ammeter to determine whether or not a current flows due to discharge, and the result is stored in a memory of a control device (not shown). In the control device,
After completing the discharge test for all the arresters on the jig 22, or in the middle of the discharge test, the arrester take-out device is activated based on the detection result, and the arrester is sucked by the suction pad 44 of the rotating arm 42 to remove only the defective products or Only non-defective products are discharged from the jig 22 and defective products are separated from non-defective products.

In the above embodiment, a flat arrester has been described, but the discharge test b can be similarly performed on a cylindrical arrester.

FIG. 3 shows a jig 22 that accommodates a cylindrical arrester 28. A plurality of concave storage portions 30 for storing the columnar arrester 28 are formed in the jig 22, and a through hole 30a for pushing up the arrester is formed in the bottom surface of each storage portion 30. Further, electrodes 28b are provided on the upper and lower surfaces of the arrester 28.
, 28b are formed, and a grounding glue 28a protrudes from the body. Then, the storage section 3 of the jig 22
0 is used to store the grounding lead 28a.

Slit 30b force 1 that opens upward following the storage section 30
It is formed.

A jig 22 containing a plurality of cylindrical arresters 28 is mounted on the upper plate 2.
When performing a discharge test by placing it on the OA, the two upper discharge electrodes 36 come into contact with the grounding glue 28a and the upper surface electrode 28b, and the lower discharge electrode 32 contacts the through hole 30a of the storage section 30. The electrode 28b is brought into contact with the electrode 28b.

The inspection operation of the cylindrical arrester 28 is the same as that of the flat arrester described above, so a description thereof will be omitted.

In each of the above embodiments, the arrester was held by a pair of upper and lower discharge electrodes, but in order to stably hold the arrester, an auxiliary tool made of a non-conductive material that holds the arrester body was used for discharge. It may also be attached to the upper and lower electrodes.

Further, in the above embodiment, the table 20 is moved to set the pair of upper and lower discharge electrodes 36.32 at fixed positions, but it is also possible to fix the table 20 and make the upper and lower discharge electrodes 36.32 movable. The take-out device 26 or 28 can also be changed as appropriate.

(Effects of the Invention) As described above regarding the present invention, during a discharge test, a high voltage is applied to the arrester, which is a dangerous work, but according to the present invention, the worker does not have to touch the arrester. It is possible to conduct inspections safely, and automation can be achieved, so inspection costs can be reduced.

[Brief explanation of the drawing]

Figure 1 is a schematic explanatory diagram showing the arrester inspection device, Figure 2
3 and 3 are partial cross-sectional views of the jig. 10... Base 12. 16... Rail, 20... Table, 22... Jig. 26.28... Arrester, 32... Lower electrode for discharge, 36... Upper electrode for discharge, 40... Rotating cylinder, 42... Rotating arm, 44... Suction bat.

Claims (1)

[Scope of Claims] 1. An arrester storage plate having a plurality of storage parts for storing arresters, and a through hole for inserting a lower discharge electrode formed in the inner bottom surface of each storage part, and the arrester storage plate. A discharge device comprising an upper electrode for discharge and a lower electrode for discharge, which performs a discharge test by holding an arrester housed in a storage part from above and below; An arrester inspection device comprising: a moving means that moves so as to be sequentially located between the upper and lower electrodes of the device. 2. A large number of concave housing portions for housing the arrester are formed in multiple rows and rows at regular intervals, and a through hole for inserting the lower discharge electrode is bored in the inner bottom surface of each of the housing portions. The arrester storage plate is positioned on the upper surface and placed with at least the lower surface side of the portion where the storage portion is located exposed downward, and the arrester storage plate is placed on the base. a table that is movable in the vertical and horizontal directions of the storage sections formed on the plate; a moving means for vertically moving the arrester storage plate at a row interval of a lower discharge electrode having an electrode portion that enters the hole and comes into contact with one electrode of the arrester;
It is arranged so as to be vertically movable above the table, facing the lower discharge electrode, and comes into contact with the other electrode of the corresponding arrester in the lower movement position, and the arrester is moved slightly away from the arrester housing plate by the lower discharge electrode. An arrester inspection device comprising an upper discharge electrode that is held and held in an upwardly floating state. 3. a detection means for detecting the presence or absence of discharge when the arresters held by the upper and lower discharge electrodes are energized; and a control means equipped with a memory that stores the detection results of the detection means in association with each arrester; 3. The arrester inspection apparatus according to claim 2, further comprising an arrester extractor which is controlled by the control means based on the detection result of the detection means and extracts defective or non-defective arresters from the arrester storage plate.