JP2007048676A - Terminal alignment inspection jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal alignment inspection jig capable of surely inspecting whether a terminal provided in a resin molding product such as an electric connection box to be mounted on an automobile is turned in a desired orientation and protruding outside the molding or not, without being influenced by variations in molding of the molding products. <P>SOLUTION: This is the terminal alignment inspection jig 1 which inspects whether the terminal mounted on the molding product is turned in the desired orientation and protruding outside the molding product or not, and which has the jig main bodies 10, 20, 30, and a terminal receiving part 40 supported by the jig main bodies and provided with a terminal receiving hole 42 that is enabled of insertion of the terminal to be inspected, and the terminal receiving part is made movable in the direction perpendicular to the insertion direction of the terminal against the jig main bodies with a prescribed play. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a terminal alignment inspection jig for inspecting whether or not a terminal provided in a resin molded product such as an electric connection box mounted on an automobile protrudes outside the molded product in a desired direction.

  2. Description of the Related Art Conventionally, for example, an automobile is provided with an electrical connection box for branching connection of a wire harness or the like, or for interposing an electrical component such as a fuse between the wire harnesses (see, for example, Patent Document 1).

  This electrical junction box is composed of, for example, a case that is a resin molded product made of a resin such as PP (polypropylene), a substrate on which a large number of electrical components and electronic components are mounted, and an elongated metal plate. A bus bar is provided that is originally bent and electrically connects between electrical components and electronic components inside the case, or electrically branches a wire harness connected to an electrical junction box.

And each front-end | tip of a bus-bar protrudes outside the electrical connection box, respectively, forms a male terminal, and is connected with the female terminal of the connector of the wire harness routed by the vehicle body.
JP 2000-188813 A (page 3-4, FIG. 1)

  In the electrical connection box production line, the process of connecting the male terminal (hereinafter simply referred to as “terminal”) to the connector of the wire harness is automated. In order to securely connect the terminal to the connector of the wire harness in such an automated process, the terminal that is the tip of the bus bar must protrude from the electrical connection box in a desired direction. In other words, if some of the terminals are bent in the direction, the connector cannot be connected to the terminals of the electrical junction box, and the connector may be damaged, and the electrical junction box production line will be stopped, producing Reduce efficiency.

  For this reason, the electrical connection box manufacturing line is provided with an automated terminal alignment (alignment) inspection process of the electrical connection box prior to the connector connection process. In this terminal alignment inspection process, a terminal alignment inspection jig having a pseudo female connector shape is inserted by being lowered from above the male connector of the electrical connection box and electrically connected to the pseudo female terminal of the terminal alignment inspection jig. Judgment state of the box with the male connector terminal is determined at the lifting and lowering dead center position of the terminal alignment inspection jig, and at this point the electrical connection of whether the terminal is aligned in the desired orientation and protrudes from the electrical connection box Quality assurance of box terminal alignment is performed.

  In this conventional inspection process, an inspection jig fixed in the flow direction of the production line is lifted and inspected in a state where the electrical junction box is completely positioned and fixed in the flow direction of the production line via the positioning block. Therefore, when variation in external dimensions due to moisture absorption etc. after molding of the electrical junction box that is a resin molded product occurs, a gap is created between the electrical junction box and the positioning block, and rattling occurs between the two, The electric junction box cannot be firmly positioned.

  As a result, a relative displacement occurs between the terminal alignment inspection jig and the terminals of the electrical connection box, and when the terminal alignment inspection jig is lowered, the terminal alignment inspection is performed on the male connector provided with the terminals of the electrical connection box. In some cases, the jig does not enter well, and the terminal alignment cannot be inspected stably.

  Therefore, it is necessary to inspect while adjusting the absolute coordinate position of the terminal alignment inspection jig according to the dimensional variation of the electric connection box. As a result, the conventional terminal alignment inspection jig is a resin molded product. There has been a problem that it is not possible to flexibly cope with the dimensional variation.

  The object of the present invention is to determine whether or not a terminal provided in a molded product such as an electric junction box mounted on an automobile protrudes outside the molded product in a desired direction due to variations in molding of the molded product. An object of the present invention is to provide a terminal alignment inspection jig that can be surely inspected without being received.

In order to solve the above-mentioned problem, a terminal alignment inspection jig according to the present invention is:
A terminal alignment inspection jig for inspecting whether a terminal provided in a molded product protrudes outside the molded product in a desired direction,
A jig body;
Having a terminal receiving portion with a terminal receiving hole supported by the jig body and into which a terminal to be inspected can be inserted;
The terminal receiving part is movable with a predetermined play in a direction orthogonal to the insertion direction of the terminal with respect to the jig body.

  If the terminal of the molded product protrudes to the outside of the molded product in the desired orientation, the relative position between the terminal of the molded product and the terminal alignment inspection jig will be shifted due to variations in molding of the molded product. In addition, the shift can be absorbed by the terminal receiving portion moving with a predetermined play in a direction orthogonal to the insertion direction of the terminal with respect to the jig body. As a result, in the inspection process using the terminal alignment inspection jig, it is possible to manufacture a molded product without misjudging that the terminal does not protrude outward from the molded product in a desired orientation due to variations in molding of the molded product. There is no need to stop the line.

  According to the present invention, for example, whether or not a terminal provided in a resin molded product such as an electric connection box mounted on an automobile protrudes outside the molded product in a desired direction is affected by variations in molding of the molded product. It is possible to provide a terminal alignment inspection jig that can be surely inspected without being received.

  Hereinafter, a terminal alignment inspection jig according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a terminal alignment inspection jig 1 according to an embodiment of the present invention is supported by a jig body and a terminal having a terminal receiving hole into which a terminal to be inspected can be inserted. It has a receiving part, and the terminal receiving part is movable with a predetermined play in a direction orthogonal to the insertion direction of the terminal with respect to the jig body.

  Hereinafter, the configuration of the terminal alignment inspection jig 1 will be described in detail. The terminal alignment inspection jig 1 includes a side-view L-shaped support plate 10 made of, for example, an aluminum alloy, a cylinder 20 that moves the support plate 10 in the vertical direction of the production line of the electrical junction box, and a horizontal position of the support plate 10. A steel ball mounting part 30 made of, for example, a steel material, a terminal receiving part 40 made of, for example, steel attached to the lower end of the steel ball mounting part 30, and a steel ball mounting part 30 and a terminal receiving part 40. And a steel ball 50 interposed so as to be able to make rolling contact within a small range, and by using the rolling of the steel ball 50, the terminal receiving portion 40 drives the cylinder 20 with respect to the steel ball mounting portion 30. It can move while having some play in the orthogonal direction.

  The vertically extending portion 12 of the support plate 10 is attached to an appropriate position in the terminal alignment inspection process of the electric junction box manufacturing line via a guide (not shown), and is supported at the same position by, for example, a driving force of a cylinder 20 driven by air pressure. The plate 10 moves up and down.

  The steel ball mounting portion 30 is attached to the horizontal extending portion 11 of the support plate 10 and has a connecting portion 31 extending in the cylinder driving direction and an XY free plate 35 provided at the lower end of the connecting portion 31. The XY free plate 35 is composed of an elongated plate body extending in the horizontal direction. In this embodiment, the upper steel ball holding recesses 36 for holding the steel balls formed at two locations in the width direction are arranged at two locations in the longitudinal direction. They are spaced apart. The upper steel ball holding recess 36 has a circular shape when viewed from the bottom, and the upper surface 36a of the upper steel ball holding recess 36 is formed flat. Further, the inner diameter of the upper steel ball holding recess 36 is somewhat larger than the diameter of a steel ball 50 described later, and the terminal receiving portion 40 is in a direction perpendicular to the cylinder driving direction with respect to the XY free plate 35, that is, the terminal 111. It is possible to move freely by a slight distance in a direction orthogonal to the insertion direction.

  In addition, hinge pin insertion holes 37 are formed at both ends of the XY free plate 35. The hole diameter of the hinge pin insertion hole 37 is also somewhat larger than the diameter of the hinge pin 60 described later, and does not hinder a predetermined amount of free movement in the direction perpendicular to the insertion direction of the terminal 111 of the terminal receiving portion 40 with respect to the steel ball mounting portion 30. It is like that.

  Note that a jig body is formed by the support plate 10, the cylinder 20, and the steel ball mounting portion 30.

  The terminal receiving portion 40 corresponds to the XY free plate 35 and includes a lower steel ball holding portion 45 made of an elongated plate body extending in a direction orthogonal to the insertion direction of the terminal 111, and the lower steel ball holding portion 45. A terminal receiving protrusion 41 extending downward from the lower end is provided. In addition, a plurality of female terminal pseudo control holes (terminal receiving holes) 42 corresponding to the female terminals of the wire harness are formed on the lower end surface of the terminal receiving projecting portion 41 to serve as a pseudo female terminal. Further, a taper portion 41 a that guides the terminal receiving protrusion 41 into the male connector of the electrical connection box 100 is formed around the lower end surface of the terminal receiving protrusion 41.

  On the upper surface of the lower steel ball holding portion 45, there is a lower steel ball holding recess 46 for holding the lower half of the steel ball 50 at a position corresponding to the upper steel ball holding recess 36 of the XY free plate 35. Is formed. The lower steel ball holding recess 46 has a circular shape when viewed from above and has a flat bottom 46a. Further, the diameter of the lower steel ball holding recess 46 is approximately the same as the diameter of the steel ball 50. In addition, hinge pin insertion holes 47 are formed at both ends of the lower steel ball holding portion 45. The hole diameter of the hinge pin insertion hole 47 is approximately the same as the diameter of the hinge pin 60.

  The hinge pin 60 is inserted from below into the hinge pin insertion holes 47 and 37 formed in the XY free plate 35 of the lower steel ball holding portion 45 and the steel ball mounting portion 30 of the terminal receiving portion 40, and the hinge pin fixing nut 61 on the upper side. Are tightened so that the hinge pin 60 does not fall out of the hinge pin insertion holes 47 and 37. The fixing nut tightening screw portion 60a of the hinge pin 60 is formed to a certain length from the tip of the hinge pin 60, and the hinge pin fixing nut 61 tightens the XY free plate 35 without completely tightening the hinge pin fixing nut 61. In order not to stop the movement, a certain gap is formed between the hinge pin fixing nut 61 and the XY free plate 35 when the hinge pin fixing nut is tightened.

  The steel ball 50 held by the XY free plate 35 and the lower steel ball holding part 45 is made of a hardened and hardened material, and its lower end is a lower steel ball holding recess for the lower steel ball holding part 45. The upper surface of the XY free plate 35 is in contact with the upper surface 36 a of the upper steel ball holding recess 36, and the circumferential surface of the substantially central portion in the circumferential direction is the lower steel ball holding portion 45. It comes in contact with the opening periphery of the lower steel ball holding recess 46.

  As a result, the steel ball 50 held by the lower steel ball holding recess 46 of the lower steel ball holding part 45 is brought into rolling contact with the upper steel ball holding recess 36 of the XY free plate 35. That is, the terminal receiving portion 40 is inserted in the insertion direction of the terminal 111 with respect to the XY free plate 35 within the range of the upper steel ball holding recess 36 of the XY free plate 35 formed to be somewhat larger than the diameter of the steel ball 50. It can move freely in the orthogonal direction.

  Next, the operation of the terminal alignment inspection jig 1 configured as described above will be described. The terminal alignment inspection jig 1 is installed at an appropriate position on the electrical junction box production line. In this installation, the vertically extending portion 12 of the support plate 10 of the terminal alignment inspection jig 1 is attached to an appropriate position of the electrical junction box manufacturing facility so as to be movable in the vertical direction via a guide. A cylinder 20 is mounted at an appropriate place in the electrical junction box manufacturing facility in order to move the support plate in the vertical direction. As shown in FIG. 1, the electric connection box 100 that has moved on the transfer device of the electric connection box production line by attaching the terminal alignment inspection jig 1 receives the terminals of the terminal alignment inspection jig 1. It stops so that the male connector 110 of the electrical junction box 100 is located just below the part 40. Then, the terminal alignment inspection jig is lowered to a predetermined position via the cylinder 20, and the female terminal pseudo control hole 42 of the terminal receiving portion 40 is fitted to the terminal 111 of the electrical connection box 100 as shown in FIG. .

  Here, when at least one terminal of the plurality of terminals 111 of the electrical connection box 100 is bent and protrudes in a direction different from the normal direction, the female terminal pseudo-control hole of the terminal receiving portion 40 of the terminal alignment inspection jig 1 is bent. The terminal cannot be received by colliding with the tip of the terminal, and the terminal alignment inspection jig 1 cannot be lowered accordingly, so that the bending of the terminal can be easily inspected.

  On the other hand, when the case of the electrical connection box 100 which is a molded product made of resin, for example, has been deformed as a whole due to, for example, moisture absorption after the resin molding, the electrical connection box 100 is connected to the terminal alignment inspection jig by the production line. 1, the peripheral wall portion of the male connector 110 protruding in the vertical direction from the upper surface of the electrical junction box may interfere with the terminal receiving portion 40 when the terminal alignment inspection jig 1 is lowered. . In the conventional terminal alignment inspection jig, in such a case, the terminal alignment inspection jig cannot be lowered to a predetermined position, and it is erroneously determined that the terminal is bent, and the electric junction box production line is stopped. However, according to the terminal alignment inspection jig 1 according to the present embodiment, as described above, the terminal receiving portion 40 has some play in the direction perpendicular to the insertion direction of the terminal 111 with respect to the XY free plate 35. . Therefore, in this case, the tapered portion 40a at the front end edge of the terminal receiving portion 40 abuts against the peripheral wall opening edge of the male connector 110 of the electrical connection box 100, and this terminal is caused by the horizontal component force generated when the abutting contact occurs. The receiving unit 40 can be moved in a direction orthogonal to the insertion direction of the terminal 111. As a result, even if the male connector 110 is displaced due to variations in molding of the electrical connection box 100, the terminal receiving portion 40 of the terminal alignment inspection jig 1 is slightly in the direction perpendicular to the insertion direction of the terminal 111. The female terminal pseudo-control hole 42 of the terminal receiving portion 40 is fitted into the terminal 111 of the male connector 110 after a while, being inserted into the male connector 110 of the electrical connection box 100. That is, when the terminal 111 of the electrical connection box 100 protrudes in a desired direction and the case itself of the electrical connection box 100 has variations in molding, the male connector 110 of the electrical connection box 100 is subjected to terminal alignment inspection treatment. The terminal receiving portion 40 of the tool 1 is received in the male connector 110 of the electrical connection box 100, and the lower end surface of the terminal receiving portion 40 of the terminal alignment inspection jig 1 is lowered to the base end portion of the terminal 111 of the electrical connection box 100. Go.

  As a result, the terminal 111 protrudes from the electrical connection box 100 in a desired direction, but even if the case itself of the electrical connection box 100 is slightly deformed due to variations in resin molding, the terminal alignment inspection treatment is performed. It is possible to perform an original terminal alignment inspection with the tool 1 and to prevent an erroneous determination that the terminal 111 is detected as being bent even though the terminal 111 is not originally bent due to only a variation in the resin molded product. Can do. As a result, this terminal alignment inspection can be automated on the electrical junction box production line without reducing the production efficiency of the electrical junction box 100 production line.

It is the front view which showed the terminal alignment inspection jig concerning one Embodiment of this invention in the partial cross section. It is the front view which showed the state which the terminal alignment test | inspection jig | tool shown in FIG. 1 fell and fitted with the terminal of the electrical-connection box in the partial cross section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Terminal alignment inspection jig 10 Support plate 11 Horizontal extension part 12 Vertical extension part 20 Cylinder 30 Steel ball attachment part 31 Connection part 35 XY free plate 36 Upper part of steel ball holding | maintenance recessed part 36a Upper surface 37 Hinge pin insertion hole 40 Terminal reception Part 41 Terminal receiving protrusion 41a Taper part 42 Female terminal pseudo control hole (terminal receiving hole)
45 Lower steel ball holding portion 46 Lower steel ball holding recess 46a Bottom portion 47 Hinge pin insertion hole 49 Steel ball receiving portion 50 Steel ball 60 Hinge pin 60a Fixing nut tightening screw portion 61 Hinge pin fixing nut 100 Electrical connection box 110 Male connector 111 terminals

Claims (1)

A terminal alignment inspection jig for inspecting whether a terminal provided in a molded product protrudes outside the molded product in a desired direction,
A jig body;
Having a terminal receiving portion with a terminal receiving hole supported by the jig body and into which a terminal to be inspected can be inserted;
The terminal alignment inspection jig, wherein the terminal receiving portion is movable with a predetermined play in a direction orthogonal to a terminal insertion direction with respect to the jig body.

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