JPH0467919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for measuring the amount of contact movement (gauging value) of a wire spring relay.

[Conventional technology]

Conventionally, gauging values of wire spring relays (hereinafter referred to as WSR) used in telephone exchanges, etc. are measured by inserting several types of thin metal pieces into the moving part of the WSR, checking whether the contacts open or close, and comparing with standard gauging values. The pass/fail judgment was made by conducting a test. In this case, if the contact exceeds the standard gauging value due to wear and tear, the contact must be replaced, but the standard gauging value depends on the skill of the contact replacement technique. .

According to this type of conventional measurement method, only the opening and closing of contacts is checked by inserting a thin piece, so although it is possible to determine whether the gauging value is within the standard, it is not possible to confirm the gauging value as a numerical value. There was a drawback. That is, if changes in the amount of contact movement due to frequency of use could be confirmed, it would be possible to predict when the contacts should be replaced. Furthermore, if the skill of contact replacement technology could be expressed numerically, the replacement technology would be improved.

On the other hand, there is a measuring device that allows gauging values to be confirmed as numerical values, as described in Japanese Utility Model Application Publication No. 57-6004. This measuring device consists of an actuating piece with a moving mechanism that can mechanically move the armature, a detection circuit using a light emitting element to monitor the opening and closing of the contact, and a dial to measure the distance traveled by the armature. A gauge is provided to enable numerical measurement of relay contact gauge values.

[Problem that the invention seeks to solve]

However, in the measuring instrument described in the above publication, when the relay contact gauge measuring instrument frame is fixed to the relay mounting frame on which the wire spring relay is attached, the support rod of the precision movement mechanism that moves the actuating piece of the measuring instrument is perpendicular to the longitudinal direction of the wire spring relay that is the relay to be measured, and
It is to be fixed parallel to the relay mounting frame. Therefore, there was a problem in that the installation required precision and the workability of the installation was poor.

Further, since the relay contact gauge measuring instrument frame is installed across a large number of wire spring relays, there is a problem that the overall structure is large.

SUMMARY OF THE INVENTION An object of the present invention is to provide a wire spring relay contact gauging value measuring device that is easy to install and can be miniaturized.

[Means for solving problems]

The wire spring relay contact gauging value measuring device according to the present invention is provided with a fixing mechanism at the bottom of the main body that is fitted into the mounting hole of the mounting plate of the wire spring relay and is brought into contact with the card portion of the wire spring relay to measure the contact gauging value. A measuring element is provided on the upper part of the main body, and the card part is moved by moving the armature of the relay by a movable part provided on the wire spring relay,
A measuring device is provided that displays the amount of change in the measuring head that changes according to the amount of movement of the card portion of the wire spring relay as a gauging value, and the fixing mechanism is rotatably inserted from the bottom to the top of the main body. The push rod is comprised of a push rod, a holder that is screwed into the push rod, and a pawl that is pivotally connected to the holder and opens and closes by rotating the push rod, and the pawl is expanded and fixed in the mounting hole. It is something to do.

[Operation of the invention] The claw of the fixing mechanism is inserted into the mounting hole of the mounting plate (WSR mounting rack) on which the WSR is continuously mounted and fixed, and the push rod is rotated. Then, the holder screwed onto the push rod moves, and the claws expand and are fixed in the mounting holes. In this way, as with the WSR, a measuring device such as a dial gauge is attached, the probe of the measuring device is brought into contact with the movable part provided at the contact point of the WSR, and a holder, etc. prepared in advance is used to connect the core armature of the WSR. In between
Just as the WSR coil is energized, the armature is kept in contact with the iron core, and the WSR
Rotate the adjusting screw of the movable part prepared in advance to gradually move the armature, read the contact operating point (contact opening/closing point) numerically with a measuring device in the process, and use it as the gauging value. It is something.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a front view of a measuring instrument for measuring WSR gauging values, and Fig. 2 is a side view thereof.

In FIGS. 1 and 2, reference numeral 1 denotes a main body, and a dial gauge 2 is provided at the top, and a fixing mechanism 5 is provided at the bottom for fitting and fixing the dial gauge 2 into the mounting hole 4 of the mounting plate 3 of the WSR.

6 is a fixed knob of the dial gauge, and 7 is a measuring tip. Reference numeral 8 denotes a claw whose inside is pivoted to the holder 12 of the fixing mechanism 5 with a pin 9, and the outer pin 9' is guided into the elongated hole 5' of the fixing mechanism 5. 10
1 is a push rod screwed into a holder 12 of the main body 1, a handle 11 is attached to the lower end, and an intermediate male screw 10' is screwed into a female screw hole 12' of the holder 12. 13 is a spring wound around the push rod 10.

When the push rod 10 is rotated left and right by the handle 11, the holder 12 screwed onto the push rod 10 moves up and down. As a result, the pin 9' slides from side to side within the elongated hole 5', causing the pawl 8 to rotate around the pin 9, thereby opening and closing the pawl 8.

FIG. 3 shows the state in which the WSR gauging value is measured using the measuring device shown in FIGS. 1 and 2. In fig. Figure 1,
Components with the same reference numerals as in FIG. 2 have the same functions. In Fig. 3, 14 is a wire spring relay (WSR), 15 is a coil, 1
6 is an iron core, 17 is an armature, 18 is a movable part that moves the WSR armature, 19 is a card part, and 20 is a contact point. Also, 21 is a battery, 22
is a lamp, which is a contact operation confirmation means connected to the contact terminal of WSR14. Furthermore, a holder 23 is used to sandwich the armature 17 and the iron core 16 in order to create the same state as when the WSR 14 operates.

Referring to FIG. 3, a method for measuring the gauging value of the WSR 14 will be explained. First, as shown in FIG. 3, a plurality of WSRs 14 are successively installed in the mounting holes 4 of the mounting plate 3, and a measuring instrument with a dial gauge 2 is installed in the adjacent mounting hole 4. To install the measuring device, rotate the handle 11 to narrow the width of the two claws 8, fit it into the mounting hole 4, then rotate the handle 11 in the opposite direction and push the second claw 8. The mounting plate 3 is fixed by spreading it out. This state is shown in FIG. As described above, the contact gauging value measuring device according to the present invention has the following features:
The fixing mechanism 5 is simple and small because it is simply fitted into the fixing mechanism 5. Also, the installation work to the mounting hole 4 can be done by inserting the claws 8, 8 into the mounting hole 4 and then inserting the push rod 10.
It is extremely simple, just rotate the .

Then, the holder 23 is held between the iron core 16 and the armature 17, and the coil 15 is energized to create a state in which the armature and the iron core are in contact with each other as when the armature 17 is operated. At this point, the measuring tip 7 of the dial gauge 2 is in contact with the card portion 19, and this is taken as the value of the dial gauge 2, which is the zero point.

Next, the knob 18' of the movable part 18 is turned to gradually move the armature 17, and in the process, the value on the dial gauge 2 at the point where the contact 20 is operating (contact on/off) is read. This value is the gauging value. The operating point of the contact 20 can be visually confirmed by lighting up a circuit of a lamp 22 connected to the contact terminal of the WSR 14 protruding from the lower part of the mounting plate 3.

In this way, if the mounting plate 3 has the mounting hole 4 for mounting only one WSR, accurate gauging value measurement is possible, which is ideal for, for example, on-site measurement.
After measuring in this way and setting the gauging value to the specified value, it can be easily removed from the mounting plate 3 by turning the handle 11 of the measuring instrument and pinching the claw 8, and then the next step.
Let's move on to measuring the WSR gauging value.

In the above embodiment, the movable part 18 and the holder 2
Although 3 and 3 have been described as separate items, they can be replaced with a member having a similar mechanism.

〔Effect of the invention〕

As explained above, the present invention provides the following effects.

(a) A measuring device that is equipped with a measuring tip that comes into contact with the movable part provided on the WSR and can read the amount of change that changes according to the amount of card movement as a gauging value.
The gauging value of the WSR can be read numerically by simply fixing it in the mounting hole for mounting the WSR, so the gauging value can be determined accurately and numerically with a simple operation.

(b) Simply fit into the WSR mounting hole, so
The fixing mechanism can be made smaller, and the entire measuring instrument can be made smaller.

(c) The work of installing into the mounting hole is extremely simple as it only requires inserting the claw into the mounting hole and rotating the push rod, improving work efficiency.

[Brief explanation of the drawing]

The attached drawings are diagrams for explaining the present invention, and
FIG. 1 is a front view of the WSR gauging value measuring device, FIG. 2 is a side view thereof, and FIG. 3 is an explanatory diagram of the installation state of the WSR and the measuring device, showing a state in which the WSR gauging value is measured. 1...Body, 2...Dial gauge, 3...Mounting plate, 4...Mounting hole, 5...Fixing mechanism, 5'...
Elongated hole, 6...fixed knob, 7...measuring tip, 8...claw,
9,9'...Pin, 10...Push rod, 1
1... Handle, 12... Holder, 12'... Female threaded hole, 13... Spring, 14... Wire spring relay, 15... Coil, 16... Iron core, 17... Armature, 18... Movable part, 1
9...Card part, 20...Contact, 21 Battery, 22
... Lamp, 23 ... Holder.

Claims (1)

[Claims] 1. A fixing mechanism that is fitted into the mounting hole of the mounting plate of the wire spring relay and fixed thereon is provided at the bottom of the main body, and a measuring element that is brought into contact with the card portion of the wire spring relay to make measurements is provided at the top of the main body, and the wire spring relay The card part is moved by moving the armature of the relay using a movable part provided in the wire spring relay, and the amount of change in the measuring head that changes according to the amount of movement of the card part of the wire spring relay is displayed as a gauging value. A measuring device is provided, and the fixing mechanism includes a push rod that is rotatably fitted from the bottom to the top of the main body, and a holder that is screwed into the push rod.
A contact gauging value measuring device for a wire spring relay, comprising a pawl pivotally attached to the holder and opened and closed by rotation of the push rod, the pawl being expanded and fixed in the mounting hole.