JP2007294146A - Positioning jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning jig in which a positional shift can be corrected even if there is some positional shift between a moving connector and a fixed connector and the moving connector can be connected with the fixed connector at a right position. <P>SOLUTION: The positioning jig is composed of a moving jig including a moving connector provided on a side of an inspection object to be transported and a fixed jig including a fixed connector provided on a side of an inspection device. On the moving jig, there are formed a first positioning hole continuing to a tapered part which is expanding toward the fixed jig and a second positioning jig provided near the moving connector, and on the fixed jig, there are formed a first positioning pin corresponding to the first positioning hole and a second positioning pin corresponding to the second positioning hole. The fixed jig is formed movable at least to vertical and horizontal directions against the movable jig. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention automatically adjusts the positioning of a relay connector that electrically connects a non-inspection object and an inspection apparatus in an inspection involving data communication such as a liquid crystal display panel in which the non-inspection object is continuously conveyed. The present invention relates to a positioning jig.

  Inspection of a product such as a liquid crystal display panel is performed in the manner shown in FIG. 1, for example. A liquid crystal display panel 520 as an object to be inspected is placed on a carriage 510 provided on a belt conveyor 500 and sequentially conveyed in front of the inspection apparatus 600. As shown in FIG. 1, the inspection object 520 is electrically connected to the moving connector 15 as a relay connector via a cable 521 on the carriage 510. On the other hand, the inspection device 600 is electrically connected to the fixed connector 34 as a relay connector via a cable (not shown).

  When the inspection object 520 is conveyed in front of the inspection apparatus 600, the belt conveyor 500 stops. Subsequently, the fixed connector 34 of the inspection apparatus 600 moves forward through the automatic back-and-forth moving device toward the moving connector 15 of the inspection object 520, and the moving connector 15 and the fixed connector 34 are connected. Thereby, the inspection object 520 and the inspection apparatus 600 are electrically connected, and the inspection of the inspection object 520 with data communication between the inspection object 520 and the inspection apparatus 600 is executed. When the inspection of the inspection object 520 is completed, the fixed connector 34 is retracted, and the moving connector 15 is detached from the fixed connector 34. Thereafter, the inspection object 520 is conveyed by the belt conveyor 500, and the next inspection object 520 is conveyed in front of the inspection apparatus 600. In this way, the inspection object 520 is inspected one after another.

JP 2004-335246 A

  As described above, when the inspection object is inspected while it is repeatedly transported and stopped, the movable connector 15 on the inspection object 520 side to be transported is stopped and the fixed connector 34 on the inspection apparatus 600 side is stopped. However, it is difficult to position at a predetermined position. In particular, when the number of contacts of a connector increases as in recent years, very high accuracy is required for positioning. Conventionally, the connection between the moving connector 15 and the fixed connector 34 is such that, after the moving connector is stopped, the displacement of the connector is adjusted manually using a positioning adjustment device, and both the connectors are electrically connected. ing. Alternatively, by using a positioning adjustment device using an expensive position detection sensor, the positional deviation is adjusted and the connector is connected. However, manual position adjustment requires experience and takes time, and position adjustment using a position detection sensor is expensive.

  In view of such problems, the object of the present invention is to automatically correct this misalignment even if there is a slight misalignment between the moving side connector and the fixed side connector. An object of the present invention is to provide a positioning jig that can be connected to a fixed connector.

  In order to achieve the above object, a positioning jig of the present invention comprises a moving side jig including a moving side connector provided on the object side to be inspected and a fixed side connector provided on the inspection apparatus side. A positioning jig including a fixed side jig including a first positioning hole and a movable side connector provided in the vicinity of the moving side connector, the taper portion expanding toward the fixed side jig. The fixed positioning jig is provided with a first positioning pin corresponding to the first positioning hole and a second positioning pin corresponding to the second positioning hole. The fixed jig is formed to be movable at least vertically and horizontally with respect to the movable jig.

  In the stationary jig of the positioning jig of the present invention, it is preferable that the stationary jig is further rotatable with respect to the moving jig.

  A stationary jig of a positioning jig according to the present invention includes a base member and a freely movable member, and the freely movable member includes the first positioning pin, the second positioning pin, and a fixed connector, The base member is formed to be movable up and down and left and right and rotatable via an elastic member. More specifically, it is possible to move up, down, left and right by interposing springs between the claw portions provided at the four corners and the support arms provided on the base member corresponding to the claw portions. And Furthermore, it is preferable that the fixed side jig can be moved forward and backward with respect to the moving side jig by an automatic back-and-forth movement mechanism.

  The positioning jig according to the present invention has the above-described configuration, so that the fixed-side jig corrects its position with respect to the moving-side jig as the fixed-side jig advances, and thereby each jig is corrected. The movable connector and the fixed connector as relay connectors provided in the tool can be easily and reliably connected.

  The positioning jig according to the present invention does not need to have a separate positioning mechanism as in the prior art, has a simple structure, and can be manufactured at low cost.

  Hereinafter, the positioning jig according to the present invention will be described with reference to FIGS.

  2A and 2B show a positioning jig according to the present invention, in which FIG. 2A is a schematic side view of a part of a moving side jig, and FIG. 2B is a schematic side view of a fixed side jig. . FIG. 3 is a schematic side view (viewed from the direction of arrow B in FIG. 2 (b)) seen from another side of the fixed-side jig of FIG. 2 (b). FIG. 4 is a schematic top view of the fixed-side jig shown in FIG. 2B (viewed from the direction of arrow A in FIG. 2B or FIG. 3). FIGS. 5 to 7 are views for explaining a state in which the positional deviation is adjusted by the positioning jig of the present invention. FIG. 5 is a diagram illustrating the position between the stationary jig immediately after the moving jig is stopped. FIG. 6 is a schematic diagram showing how the fixed jig moves forward and adjusts the positional deviation, and FIG. 7 shows the position by the positioning jig of the present invention. It is a schematic diagram which shows just before adjustment is completed. 8 and 9 are diagrams for explaining the horizontal movement of the movable part of the fixed-side jig. FIG. 8 is a schematic diagram when the movable part is at the initial position. FIG. It is a schematic diagram when a part moves.

  In this specification, “upper” and “lower” refer to the direction of the arrow A in FIGS. 2A, 2B and 3, and “rear” and “front” refer to FIG. ), (B), and FIG. 4, along the direction of arrow B, and “left” and “right” are along the direction of arrow C in FIGS.

  The positioning jig according to the present invention includes a moving-side jig 10 shown in FIG. 2A and a fixed-side jig 30 shown in FIG.

  As shown in FIG. 1, the moving jig 10 shown in FIG. 2A is on a carriage 510 disposed on the belt conveyor 500 and is in a predetermined position so as to face the inspection apparatus 600. It is fixed. The moving side jig 10 generally has a flat plate-like support member 11, a multilayer circuit board 13, a moving side connector 15, and a pair of lead-in holes 12.

  The flat support member 11 includes a multilayer circuit board 13 on which a circuit pattern is formed, and includes a moving-side connector 15 as a relay connector at the approximate center in the vertical direction. The moving-side connector 15 is electrically connected to the object to be inspected 520 via a cable via a circuit formed on the multilayer circuit board 13 of the support member 11 and further as shown in FIG. . A plurality of (four in this embodiment) second positioning holes 16 as second positioning members are provided in the vicinity of the moving connector 15. The second positioning hole 16 is used in combination with a second positioning pin 341 described later to perform final positioning immediately before the movable connector 15 serving as a relay connector and the fixed connector 34 described later are connected. Used as a second positioning mechanism. That is, the second positioning hole 16 of the moving side jig 10 and the second positioning pin 341 of the fixed side jig 30 constitute a second positioning mechanism.

  The moving connector 15 is usually formed as a convex socket. The moving-side connector 15 has a plurality of T-shaped printed circuit pins (also referred to as “PCB pins”; not shown) connected as external contacts to printed circuits formed on the multilayer circuit board 13 through through holes. It has. PCB pins are usually arranged in a matrix.

  A pair of lead-in holes 12 constituting the first positioning mechanism are formed above and below the support member 11 with the moving connector 15 interposed therebetween. As shown in detail in FIGS. 5 to 7, each guide hole 12 includes a tapered portion 121 that expands toward the front and a first positioning hole 122 behind the tapered portion. The lead-in hole 12 guides a first positioning pin 321 to be described later, and corrects misalignment between the first connector 15 as the relay connector and the second connector 34. That is, the first positioning pin 122 of the guide hole 12 of the moving side jig 10 and the first positioning pin 321 of the stationary side jig 30 constitute a first positioning mechanism.

In the present embodiment, the maximum diameter D of the tapered portion 121 is, for example, not limited to this, but is about 17 mm, and the minimum diameter (that is, the diameter of the first positioning hole 122) d is the first diameter D. the diameter _{D 1} plus about 1mm of the positioning pin 321. In this case, as the first positioning member, if the displacement between the movable connector 15 and the fixed connector 34 is within a range of ± 8 mm, the displacement can be corrected within ± 0.5 mm. .

  The fixed-side jig 30 shown in FIGS. 2B to 4 is provided in the inspection apparatus 600 as shown in FIG. 1, and is automatic with respect to the moving-side jig 10 such as a hydraulic device. A forward / backward movement mechanism (not shown) is configured to automatically advance and retreat. The fixed-side jig 30 generally includes a flat base member 31, a flat movable member 32, a multilayer circuit board 33, a fixed connector 34, and a first positioning pin 321.

  The base member 31 is a substantially rectangular flat plate body, and is connected to an automatic back-and-forth movement mechanism so that the movement side jig 10 can automatically advance and retreat. The base member 31 is provided with a total of four support arms 311 that are paired in the vertical direction along the left and right sides. The base member 31 is also provided with a support stay 313 between a pair of support arms 311. As shown in FIG. 3, the support stay 313 is disposed on the left and right side portions of the base member 31 and in the central portion in the vertical direction. Each of the support stays 313 includes a ball plunger 314 formed so that the ball 315 can enter and exit. The base member 31 is further provided with a first spring 312 as a plurality of (four in this embodiment) elastic members that support the movable member 32 so as to be movable in the front-rear direction at a predetermined position.

  The freely movable member 32 is a substantially rectangular flat plate whose length in the left-right direction is smaller than that of the base member 31, and has a multilayer circuit board 33 at substantially the center thereof, and claw portions 325 are formed at four corners thereof. Has been. The movable member 32 is also provided with a pair of first positioning pins 321 on the upper and lower sides of the multilayer circuit board 33. Each of the pair of first positioning pins 321 is preferably formed such that the tip end portion becomes gradually thinner toward the tip end as shown in FIG. 2B, FIG. 4, and FIGS. . The pair of first positioning pins 321 are disposed at a substantially central portion in the left-right direction of the movable member 32. As described above, the first positioning pin 321 constitutes the first positioning mechanism together with the guide hole 12 of the moving jig 10. The movable member 32 is provided with a protruding piece 327 corresponding to the support stay 313 of the base member along the left and right sides thereof. A recess 328 is formed.

  As described above, the movable movable member 32 is supported so as to be movable in the front-rear direction with respect to the base member 31, that is, in the vertical direction with respect to the base member 31 via the plurality of first springs 312. The movable movable member 32 is supported by the base member 31 in a state where the left and right protruding sides 327 are pressed against the support stay 313 of the base member 31 by the first spring 312 and floated in the air. The universal movable member 32 can be rotated with respect to the opposing movement-side jig 10 by having such a configuration. Therefore, even if the moving side jig 10 and the fixed side jig 30 are not completely parallel, it is possible to absorb this by the rotation of the freely movable member 32. In other words, the fixed side jig 30 can be opposed to the moving side jig 10 in parallel.

  The movable member 32 further includes a second spring 322 as an elastic member provided between the support arm 311 of the base member 31 and the claw portions 325 formed at the four corners of the movable member 32. The base member 31 is supported so as to be movable vertically and horizontally, that is, parallel to the base member 31. The movable movable member 32 is normally supported on the base member 31 at the initial position where the ball 315 of the ball plunger 314 of the support stay 313 is engaged with the recess 328 of the protruding piece 327 of the movable movable member 32.

  A fixed-side connector 34 as a relay connector is provided at a substantially central portion of the multilayer circuit board 33. Therefore, the fixed connector 34 can move integrally with the freely movable member 32. The fixed connector 34 is electrically connected to the inspection device 600 via a circuit and a cable formed on the multilayer circuit board 33. The fixed connector 34 has second positioning pins 341 formed at the four corners thereof. As described above, the second positioning pin 341 constitutes a second positioning mechanism together with the second positioning hole 16 of the moving connector 15. The fixed connector 34 is usually formed as a concave socket having probe pins (not shown) as external contacts. The probe pins of the fixed connector 34 are connected to the printed circuit formed on the multilayer circuit board 33 through through holes. When the movable connector 15 is fitted into the fixed connector 34, the probe pins, which are external contacts, and the T-shaped PCB pins are in electrical contact with each other. As a result, the inspection object 520 and the inspection apparatus 600 are electrically connected. Connect.

  An operation of position correction by the positioning jig according to the present invention having such a configuration will be described below with reference to FIGS. 1 and 5 to 9.

  In FIG. 1, the carriage 510 on which the inspection object 520 is mounted stops in front of the inspection apparatus 600. Next, the fixed side jig 30 constituting the positioning jig according to the present invention moves forward toward the moving side jig 10 constituting the positioning jig according to the present invention via the automatic back-and-forth movement mechanism.

  As the fixed-side jig 30 moves forward, as shown in FIG. 5, the first positioning pin 321 of the fixed-side jig 30 constituting the first positioning mechanism is the moving side constituting the first positioning mechanism. The tapered portion 121 of the guide hole 12 of the jig 10 abuts on the inclined surface and is guided by the inclined surface. In this case, the positional deviation between the center position of the movement side connector 15 of the movement side jig 10 and the center position of the fixed side connector 34 of the fixed side jig 30 is within a predetermined range (in this embodiment, the movement side It will be understood that the center of the fixed connector 34 should be within ± 8 mm vertically and horizontally with respect to the center of the connector 15.

  As described above, the first positioning pin 321 of the fixed-side jig 30 is provided on the freely movable member 32 that is movable up and down and left and right. Therefore, as shown in FIG. 6, as the stationary jig 30 advances, the first positioning pin 321 is guided by the inclined surface of the tapered portion 121 of the guide hole 12, so that the freely movable member 32 is Move up / down / left / right. At this time, the ball 315 of the plunger 314 of the support stay 313 is disengaged from the engagement hole 328 of the protruding piece 327 of the freely movable member 32 as shown in FIG. By such movement of the freely movable member 32 in the vertical and horizontal directions, the fixed side connector 34 of the fixed side jig 30 corrects the positional deviation with respect to the moving side connector 15.

  As the stationary jig 30 further advances, the first positioning pin 321 enters the first positioning hole 122 of the guide hole 12 as shown in FIG. Since the first positioning pin 321 completely enters the first positioning hole 122, the positional deviation between the moving side connector 15 and the fixed side connector 34 is corrected with considerable accuracy (in this embodiment, Within ± 0.5 mm).

  In this way, positioning by the second positioning mechanism is started substantially simultaneously with completion of the correction of the positional deviation by the first positioning mechanism. In other words, the second positioning pin 341 of the fixed connector 34 constituting the second positioning mechanism enters the second positioning hole 16 of the moving connector 15 constituting the second positioning mechanism, and further increases the accuracy. Positioning is performed (in this embodiment, within ± 0.25 mm).

  At the same time as the position correction is completed by the second positioning mechanism, the T-shaped PCB focus of the moving connector 15 and the probe pin of the fixed connector 34 are in electrical contact with a predetermined contact pressure. As a result, data can be exchanged between the inspection apparatus 600 and the inspection object 520. In addition, as described above, the movable member 32 provided with the fixed connector 34 in the present embodiment is formed to be movable in the front-rear direction by the first spring 312 and thereby to be rotatable. Therefore, even if the movable connector 15 and the fixed connector 34 are relatively inclined, a shift with respect to the angle can be absorbed by the rotation of the movable member 32 (in this embodiment, ± 1 °). ).

  When the inspection is completed, the fixed jig 30 is retracted from the moving jig 10 by the automatic back-and-forth movement mechanism. The second positioning pin 341 is detached from the second positioning hole 16 and the first positioning pin 321 is subsequently detached from the guide hole 12 by the retreat of the fixed side jig 30. By such a detachment operation, the movable movable member 32 causes the ball 315 of the support stay 313 to engage with the movable movable member 32 as shown in FIG. It returns to the initial position where it fits into the joint hole 328.

It is a figure for demonstrating the mechanism which test | inspects a product. The positioning jig which concerns on this invention is shown, (a) is the schematic side view which cut down a part of movement side jig | tool, (b) is a schematic side view of a fixed side jig | tool. It is the schematic side view (figure seen from the arrow B direction of FIG.2 (b)) seen from the other side of the fixed side jig | tool of FIG.2 (b). It is a schematic top view (figure seen from the arrow A direction of FIG.2 (b) or FIG. 3) of the fixed side jig | tool shown by FIG.2 (b). It is a figure for demonstrating a mode that a position shift is adjusted with the positioning jig of this invention, and is a model which shows a mode that a position shift has arisen between the fixed side jig | tool immediately after the movement side jig | tool stopped. FIG. It is a figure following FIG. 5 for demonstrating a mode that a position shift is adjusted with the positioning jig of this invention, and is a schematic diagram which shows a mode that a fixed side jig | tool advances and a position shift is adjusted. It is a figure following FIG. 6 for demonstrating a mode that a position shift is adjusted with the positioning jig of this invention, and is a schematic diagram which shows immediately before the position adjustment by the positioning jig of this invention is completed. It is a figure for demonstrating the horizontal movement of the movable part of a fixed side jig | tool, and is a schematic diagram when a movable part exists in an initial position. It is a figure for demonstrating the horizontal movement of the movable part of a fixed side jig | tool, and is a schematic diagram when a movable part moves.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Movement side jig | tool 12 Guide hole 121 Tapered part 122 1st positioning hole 15 Movement side connector 16 2nd positioning hole 30 Fixed side jig | tool 31 Base member 312 1st spring 32 Swivel movable member 321 1st positioning pin 322 Second spring 34 Fixed connector 341 Second positioning pin 500 Belt conveyor 510 Cart 520 Object to be inspected (product)
600 Inspection device

Claims (5)

A positioning jig comprising a moving side jig including a moving side connector provided on the object side to be inspected and a fixed side jig including a fixed side connector provided on the inspection apparatus side,
The moving side jig is formed with a first positioning hole following the taper portion that expands toward the fixed side jig and a second positioning hole provided in the vicinity of the moving side connector,
The fixed side jig is provided with a first positioning pin corresponding to the first positioning hole and a second positioning pin corresponding to the second positioning hole,
The positioning jig is configured to be movable at least vertically and horizontally with respect to the moving jig.   The positioning jig according to claim 1, wherein the fixed side jig is further rotatable with respect to the moving side jig. The fixed side jig includes a base member and a freely movable member,
The freely movable member includes the first positioning pin, the second positioning pin, and a fixed connector, and is formed to be movable up and down and left and right and rotatable with respect to the base member via an elastic member. The positioning jig according to claim 2, wherein the positioning jig is provided.   The movable member can be moved up, down, left and right by interposing a spring between the claw portions provided at the four corners thereof and the support arms provided on the base member corresponding to the claw portions. The positioning jig according to claim 3, wherein: The positioning jig according to claim 1, wherein the fixed side jig can be moved forward and backward relative to the moving side jig by an automatic back-and-forth movement mechanism.

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