KR20000024669A - The equipment combine system and jig of electrical inspection pcb board - Google Patents

Abstract

PURPOSE: A method and a device are provided, so that a compatible jig can be used in a tester with a universal type and a dedicated type, by equipping a fin installed on a jig for connection use to have a narrow interval on an upper part and to have a wide interval on a lower part. CONSTITUTION: A connection jig(1) for adjusting intervals of fins is composed of an upper plate(2), many middle plates(3), and a lower plate(4) which are separable, respectively. The connection jig inserts fixed sticks(5) into edges of each plates(2,3,4), inserts a screw axis(6) in an upper part of the fixed sticks(5), and perforates the fixed sticks(5) into the each plates(2,3,4). The connection jig fixes the perforated fixed sticks(5) with a nut(7) which is composed of polypropylene, and forms insertion spaces(9) which the fins are inserted on the upper plate(2), and between the middle plates(3) and the lower plate(4). The connection jig adjusts a pitch of a fin projected on the upper plate(2) with a pitch of a dedicated type jig, and adjusts a pitch of a fin projected on the lower plate(4) with a pitch of a universal type jig, by forming the insertion spaces of the upper, middle, lower plates(2,3,4) as one side.

Description

The compatibility method for the electrical inspection jig of the PCB and its device {THE EQUIPMENT COMBINE SYSTEM AND JIG OF ELECTRICAL INSPECTION PCB BOARD}

The present invention relates to a jig to be used for electrical inspection of the PCB substrate, by making the universal jig compatible with the use of a change grid (GRID) to a cheap jig low price jig to minimize the production price of the jig The purpose is to allow the product to be measured regardless of the measuring device by allowing the jig to be mixed together.

In general, a device used for electrical inspection of a PCB substrate is mainly a device of a dead type and a universal type. The electronic dead gate type tester has a number of pins of 2048-. It is around 16384, and the jig used uses the RECEPTER and SPRING PROBE, but there is a disadvantage that the manufacturing cost of the jig per model used is expensive, and since the reuse of the probe is impossible, unnecessary waste of raw materials is severe. There was a problem.

On the other hand, the latter universal type has a pin number of about 30,000 to 100,000, and the jig uses plates and probes, and the production cost of the jig per model is about 400,000 won, which makes the jig manufacturing cost cheaper but the pitch of the pin is less than 0.5mm. Therefore, there was a problem that the high-density circuit cannot be inspected.

That is, when comparing the two inspection devices as follows.

Type of Equipment Comparison Universal type Dedicated type Retention Pin Count of Equipment Around 30,000-100,000 Within 2048-16384 Jig (FIXTURE) Plate & Probe Ractorter & Spring Probe Whether the probe is recycled Recyclable Non-recyclable Jig production cost per model used (on average 4000 pins) Around 400,000 won (excluding the probe price consumed) $ 200- $ 50 million (depending on the type of probe) Manufactureable pitch of the pin Normally less than 0.5mm 0.3 mm depending on probe

As described above, the jig used in the conventional conventional inspection machine has a disadvantage of incompatibility by making and using a dedicated jig, and thus, since each jig is manufactured and used exclusively, unnecessary jig is kept by storing each jig. It required a storage space, there was also a problem that spend unnecessary manufacturing costs by making each jig.

That is, among the jig used in the prior art, the dedicated jig has the disadvantage that the pin cannot be recycled by fastening the pin to the panel and then soldering or wrapping the lower end of the pin when installing the pin on the panel of the jig. As a result, waste of expensive pins was severe and caused unnecessary expenses.

On the other hand, the universal jig can reduce the cost of the pin by reusing it when assembling the pin on the panel forming the jig. However, the equipment is expensive and the gap between the pin and the pin installed in the jig It was a problem that the board | substrate which was wide and the space | interval is dense was not able to measure.

The present invention has been invented to solve the above problems, the manufacturing jig for filtration, but the upper end of the pin is installed in the connecting jig and the lower end of the wide gap is installed universal type and dedicated Interchangeable jig is installed between the jig of the type to be used for compatibility with the universal type and the dedicated type checker, the present invention will be described in detail with reference to the accompanying drawings as follows.

1 is an exploded perspective view of the present invention

2 is a schematic front view of a use state of the present invention;

3 is an enlarged view of main parts of the present invention;

** Description of symbols for the main parts of the drawing **

1. Connecting jig 2. Top plate 3. Intermediate plate

4. Bottom plate 5. Fixed rod 6. Screw shaft

7. Nut 8. Pin 9. Insertion Hole

10. Jig 11. Projection 12. Groove

Universal Jig and Dedicated Jig are installed between the jig used for the dedicated type checker and the jig used for the universal type checker by installing a connecting jig that adjusts the gap between the pin of the dedicated jig and the pin installed on the universal jig. This is because the tester is compatible.

The connecting jig 1 is configured to be separated into an upper plate 2, several intermediate plates 3 and a lower plate 4, but a fixing rod 5 at an upper edge side of each plate body 2, 3 and 4, respectively. Insert the screw shaft (6) at the top of the fixing rod (5) to allow the fixing rod (5) and each plate (2) (3) (4) to pass through, and then 7) and the insertion hole 9 into which the pin 8 is inserted in the middle of the upper plate 2, several intermediate plates 3, and the lower plate 4 is formed. (3) The pitch of the pins protruding from the upper plate 2 is formed by stepping the insertion hole of the multi-stage side to one side in accordance with the pitch of the dedicated jig, and the pitch of the pins protruding from the lower plate 4 is universal. It was made to fit the pitch of the mold jig.

As described above, protrusions 11 are formed at both front and rear sides of the lower end of the dedicated and universal jig 10 in which several pins are fastened at regular intervals, and grooves 12 are formed at both front and rear sides of the connecting jig 1. It is formed so that the connecting jig 1 is fastened between the dedicated type and the universal type jig 10.

Referring to the operation of the present invention as described above is as follows.

When you want to perform the electrical inspection of the micro-substrate when the electrical inspection of the substrate using a universal inspection machine or a dedicated inspection machine first to manufacture a connecting jig (1) suitable for the substrate. At this time, the pin 8 inserted from the upper plate 2 of the connecting jig 1 has a wide pitch, but the insertion hole 9 formed in the intermediate plate 3 and the lower end 4 moves stepwise to one side. Since it is formed in a state that is inclined to one side while the pin is inserted, thereby the pitch of the pin protruding to the bottom of the lower plate 4 is configured to be narrow.

After the connecting jig 1 is manufactured as described above, and the thermal jig is installed between the dedicated jig and the universal jig, the pins of the jig, such as the spacing of the substrate, are positioned on the upper part of the jig. Since the lower end of the connecting jig is narrow or wide, the inspection can be performed regardless of the pitch of the substrate.

As described above, in the present invention, the upper part has a narrow gap and the lower part has a wide spacing, so that a connection jig is installed between the universal type and the dedicated type jig, which is used to be compatible with the universal type and the dedicated type inspector. It is designed to be used for the purpose. The structure is simple, so it is easy to manufacture, and the pin used for the jig can be separated and recycled, and the jig manufacturing cost is low. It is a useful invention that can be done.

Claims (3)

Universal Jig and Dedicated Jig are installed between the jig used for the dedicated type checker and the jig used for the universal type checker by installing a connecting jig that adjusts the gap between the pin of the dedicated jig and the pin installed on the universal jig. Compatible method for the jig for electrical inspection of the PCB substrate, characterized in that the tester is made to be compatible. The connecting jig 1 is configured to be separated into an upper plate 2, several intermediate plates 3 and a lower plate 4, and a fixing rod 5 is disposed at the upper edge side of each plate body 2, 3, and 4. Insert and then insert the screw shaft (6) at the top of the fixing rod (5) so that the fixing rod (5) and each plate (2) (3) (4) pass through, and then at the bottom a nut of polypropylene (7). And inserting holes 9 into which the pins 8 are inserted in the middle of the upper plate 2, several intermediate plates 3, and the lower plate 4, and the upper, middle, and lower plates 2 ( 3) The insertion hole of (4) is formed in a multi-step step to one side, the pitch of the pin protruding from the upper plate (2) to match the pitch of the dedicated jig, the pitch of the pin protruding from the lower plate (4) is universal Compatible device for the jig for electrical inspection of the PCB substrate, characterized in that it is adapted to the pitch of the type jig. Protruding portions 11 are formed on both sides of the lower and front sides of the dedicated and universal jig 10, and grooves 12 are formed on both front and rear sides of the connecting jig 1 so that the connecting jig 1 is formed of the dedicated and universal jig 10. Compatible device for the jig for electrical inspection of the PCB substrate, characterized in that it is fastened between the type jig (10).