JP3477646B2 - Contact type meandering meter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a meandering amount measuring device for materials (objects to be measured) such as contacts for connectors. The meandering here means that the material is curved into a substantially bow shape.

[0002]

2. Description of the Related Art A conventional meandering amount measuring device and measuring device will be described with reference to FIGS.

First, the direction of meandering of the connector contact will be described with reference to FIG. The multiple contacts 11A and the carrier 11B are integrally pressed from a metal plate. At this time, the carrier 11B is
If it is curved in the direction of (a), the
For the sake of convenience, if it is curved in the direction (b), it is curved in the negative direction.

Next, the measurement of the meandering amount of the connector contact when there is no meandering amount measuring device will be described with reference to FIG. The first scale 12 is arranged horizontally and
The second scale 13 is arranged in a direction perpendicular to the scale 12. The carrier 11B, which is integrated with a large number of contacts 11A, is brought into contact with the first scale 12, and the length L ₁ from one end of the carrier 11B to the other end and the maximum meandering amount L
₂ and are measured.

Next, a simple meandering amount measuring device will be described with reference to FIG. The scale 14 is provided with pins 15 at intervals L near both ends of the center line 14A in the lengthwise direction, and has a scale 14B on one side. Further, a scale 14C is engraved at a right angle from the center position between the pair of pins 15 to the scale 14B. When the object to be measured is brought into contact with the pair of pins 15, the maximum meandering amount per length L of the object to be measured is the standard of the scale 14C regardless of whether the object to be measured is curved in the positive direction or the negative direction. It can be measured by the distance from the position (0 point).

[0006]

The technique for measuring the meandering amount of the connector contact without the above-mentioned meandering amount measuring device has the following drawbacks. That is, the thickness of the first scale 12 (about 2 mm) and the thickness of the carrier 11B (0.2 to
(0.6 mm) causes a step to occur, making it difficult to read the measured value. Further, since the second scale 13 is arranged vertically to the first scale 12 for measurement, a measurement error is likely to occur. Further, when the carrier 11B is curved in the plus direction, measurement can be performed, but when the carrier 11B is curved in the minus direction, the central portion of the carrier 11B is located at the first scale 12.
It cannot be measured because it abuts.

The above-described simple meandering amount measuring device has the following drawbacks. That is, since the scale 14C is read with the naked eye of the measurer (personal error is about 0.5 mm), it is not possible to perform highly accurate measurement in the field of recent narrow pitch and multi-core connectors. As a result, a connector that does not meet the standard is manufactured, which causes a trouble in production and a loss inevitably resulting from discarding a defective product.

Therefore, the present invention improves the drawbacks of the above-mentioned conventional technique for measuring the amount of meandering and the measuring instrument, and can perform high-precision measurement easily in a short time, without any individual error of the operator.
Moreover, it is an object of the present invention to provide a meandering amount measuring device that can measure an object to be measured regardless of its bending direction.

[0009]

The present invention adopts the following means in order to solve the above problems.

1. A base part, a support part fixed to the base part and supporting near both ends of the measured object, and a measurement part held by the base part and measuring the meandering amount of the measured object. The measurement unit moves the contact inspection unit and a contact inspection unit that can move from a reference position until the measurement unit contacts the object to be measured, and measures the amount of movement of the contact inspection unit. A contact-type meandering amount measuring instrument having an operating section for detecting the contact with the object to be measured, and a detecting section for detecting contact of the contact inspection section with the object to be measured.

2. The contact inspection unit and the operation unit can be fixed to the base unit at arbitrary positions so that their positions can be changed in a direction orthogonal to the direction of the meandering amount of the object to be measured. The contact-type meandering amount measuring device as described in 1 above.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A contact type meandering amount measuring device according to an embodiment of the present invention will be described with reference to FIGS.

In the contact-type meandering amount measuring device, a spline micrometer (operation part) 2 and a contact inspection part 3 are arranged in the center of one side of the substantially rectangular base part 1 and the base part 1 is also provided. A pair of support pins (support portions) 4 are provided upright in the vicinity of the other two opposite sides, and a touch limit sensor (electrically connected to the contact inspection unit 3) is provided in the vicinity of one corner of the base portion 1. A detection unit) 5 is provided. The “0” reference of the spline micrometer 2 is a straight line connecting the pair of support pins 4. As shown in FIG. 1A, the lower side of the DUT 6 indicated by the chain double-dashed line abuts on the pair of support pins 4.

The contact inspection unit 3 has a contact portion 3A which contacts the object 6 to be measured, a sliding portion 3B which holds the contact portion 3A and can slide with respect to the base portion 1, and a sliding portion. Part 3B
And a connecting portion 3C that is fixed to the spindle 2A of the spline micrometer 2.
The contact portion 3A is plated with gold for corrosion resistance and contact reliability.

Depending on whether the DUT 6 is curved in the positive direction or the negative direction, the knob 2B of the spline micrometer 2 in FIG. 2 (a) is moved to the left or right as indicated by the arrow. When the spindle is rotated to, the spindle 2A moves forward or backward in the direction of the arrow. When the contact portion 3A of the contact inspection unit 3 comes into contact with the DUT 6 (as an example, a carrier for a connector contact), the touch limit sensor 5 detects the contact. In the touch limit sensor 5, the buzzer 5A sounds and the lamp 5B lights up. At this time, the amount of movement of the spindle 2A of the spline micrometer 2 from the "0" reference is read on the scale of the spline micrometer 2 and converted by a conversion formula to calculate the meandering amount of the DUT 6.

The maximum meandering amount L ₂ of the DUT 6 is shown in FIG.
Since it does not always exist in the intermediate position between the pair of support pins 4 in (a), the spline micrometer 2 and the contact inspection unit 3 are positioned in the longitudinal direction (direction orthogonal to the direction of meandering amount) of the DUT 6. To be able to change, and
It is configured so that it can be fixed to the base portion 1 at an arbitrary position.

A total of four base legs 1A are provided near both sides of the bottom surface of the base portion 1 in the longitudinal direction.

[0018]

As is apparent from the above description, the present invention has the following effects.

1. The meandering amount of the object to be measured can be easily measured with high accuracy (for example, on the order of 10 μm) in a short time.

2. Since the individual error of the measurer does not occur, accurate measurement can be performed.

3. It is convenient because the object to be measured can be measured regardless of whether it is curved in the positive direction or the negative direction.

[Brief description of drawings]

1A and 1B are views of a contact-type meandering amount measuring device according to a first embodiment of the present invention, in which FIG. 1A is a plan view and FIG.
(C) shows a front view, respectively.

FIG. 2 is a schematic view of a main part of the measuring instrument, in which (a) is a plan view and (b) is a side view.

FIG. 3 is a front view of a technique for measuring the meandering amount of a connector contact without a meandering amount measuring device.

FIG. 4 is a front view of a conventional simple meandering amount measuring device.

5A and 5B are views for explaining the directionality of meandering of the connector contact, in which FIG. 5A shows a state of being curved in a positive direction, and FIG. 5B shows a state of being curved in a negative direction.

[Explanation of symbols]

1 base 1A stand leg 2 spline micrometer (operation part) 2A spindle 2B knob 3 Contact inspection department 3A contact part 3B sliding part 3C connection part 4 Support pins (support section) 5 Touch limit sensor (detector) 5A buzzer 5B lamp 6 DUT 11A contact 11B carrier

─────────────────────────────────────────────────── --Continued from the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01B 3/00-7/34 G01B 11/00-11/30 G01B 21/00-21/32

Claims (2)

(57) [Claims] 1. A base portion and a base portion fixed to the base portion,
And, a support portion that supports the vicinity of both ends of the object to be measured, and is held by the base portion, and is composed of a measuring portion that measures the amount of meandering of the object to be measured, the measuring portion, from a reference position to the A contact inspection unit that can move until it contacts the object to be measured, an operation unit that moves the contact inspection unit, and measures the amount of movement of the contact inspection unit, and the contact inspection unit is the A contact-type meandering amount measuring device, comprising: a detection unit that detects contact with an object to be measured; and the detection unit further includes a buzzer or a lamp notification unit. 2. The contact inspection unit and the operation unit are fixed to the base unit at arbitrary positions so that the positions thereof can be changed in a direction orthogonal to the direction of the meandering amount of the object to be measured. The contact-type meandering amount measuring device according to claim 1, wherein the contact-type meandering amount measuring device is configured to be capable of being performed.