JP5066481B2 - Terminal inspection device - Google Patents

Description

  The present invention relates to a technique for inspecting the protruding state of each terminal for a terminal group consisting of a plurality of terminals protrudingly mounted in a predetermined arrangement pattern on a holding member in an electrical connection component.

  Some electrical connection parts such as connectors, boards, or electrical connection boxes have a terminal group composed of a plurality of terminals. In addition, some electrical connection parts having a terminal group include a terminal group formed by mounting pin-like terminals on a holding member such as a housing so as to protrude in a predetermined arrangement pattern. For such an electrical connection component, if there is at least one terminal in which the protruding state from the holding member is incorrect, that is, a protruding state defective terminal in which the protruding angle from the holding member is inclined more than a certain angle from the correct angle, The connection with the connection partner via the group cannot be made stable. For this reason, the terminal test | inspection which test | inspects the presence or absence of the terminal with a bad protrusion state about a terminal group is needed.

  As such a terminal inspection, there is an inspection performed using a terminal inspection apparatus provided with a terminal inspection jig. FIG. 5 shows the relationship between the electrical connection component 1 and the terminal inspection apparatus 2 in such terminal inspection.

  The electrical connection component 1 has a housing 4 assembled to the cover 3 as a holding member. The housing 4 is formed in a box shape with an open top surrounded by a side wall 5 around the circumference, and has a mounting surface 6 at the bottom. Pin-shaped terminals 7 are mounted on the mounting surface 6 of the housing 4 so as to protrude in the same direction as the side walls 5 in a predetermined arrangement pattern, and these terminals 7 form a terminal group 8. The terminal 7 has, for example, a square pin shape with a square cross-sectional shape, and a tapered portion 9 is provided at the tip portion.

  The terminal inspection device 2 includes a set unit 11, a terminal inspection jig 12, a drive mechanism 13, and a detection mechanism 14. The set portion 11 has a structure having a set surface 15 and a restriction wall 16 erected from the edge thereof, so that the electrical connection component 1 can be set on the set surface 15 by restricting the position by the restriction wall 16. ing.

  The terminal inspection jig 12 is formed of a metal plate having a thickness about the length of the tapered portion 9 of the terminal 7, and an insertion hole 17 through which the terminal 7 can be inserted is an arrangement pattern of the terminals 7 in the terminal group 8. These insertion holes 17 form an insertion hole group 18. The insertion hole 17 is formed with a predetermined opening size. The opening size is such that the terminal 7 can be inserted into the insertion hole 17 with a certain play. That is, assuming that the cross-sectional shape size of the terminal 7 is Smm × Smm, the opening size of the insertion hole 17 is (Smm + ΔSmm) × (Smm + ΔSmm). However, ΔS is set based on the amount of deflection allowed for the protrusion angle of the terminal 7 with respect to the mounting surface 6 (inclination angle from the correct protrusion angle of 90 degrees in the example in the figure).

  The drive mechanism 13 is formed by an advancing / retracting mechanism such as a pneumatic cylinder or a hydraulic cylinder, and is integrated with the set unit 11 via a support frame 19 and at the same time a terminal inspection jig 12 via a holding frame 21. The terminal 7 can be inserted into the insertion hole 17 for the forward movement (downward movement in the example of FIG. 5) toward the terminal group 8 in the electrical connection component 1 set on the set surface 15. In this state, the terminal inspection jig 12 performs the operation.

  The detection mechanism 14 includes a detection unit 22 and a detected unit 23 that form a pair. The detection unit 22 is provided by being attached to the regulation wall 16 of the set unit 11. On the other hand, the detected portion 23 is provided by being attached to the terminal inspection jig 12 via the holding frame 21. The detection mechanism 14 is, for example, a photoelectric sensor type. In the case of the photoelectric sensor system, the detection unit 22 is formed so as to receive light or receive and project light, and the detected unit 23 is configured to perform a projector or reflect light projected from the detection unit 22. Is done. Such a detection mechanism 14 is in a state in which the detection unit 22 and the detected unit 23 correspond to each other in the downward movement direction (forward movement direction) of the terminal inspection jig 12, that is, in the state of FIG. Thus, the detection unit 22 operates so as to detect the detected unit 23.

  The terminal inspection of the electrical connection component 1 by the terminal inspection apparatus 2 as described above is performed as follows. First, the electrical connection component 1 is set on the set surface 15 of the set unit 11 in a state as shown in FIG. Next, as shown in FIG. 6, the drive mechanism 13 is operated to cause the terminal inspection jig 12 to move downward toward the terminal group 8. This downward movement is performed at a constant distance. That is, it is performed at a downward moving distance assuming that the terminal inspection jig 12 is lowered to a predetermined determination line L.

  The downward movement of the terminal inspection jig 12 by the drive mechanism 13 is a state in which the terminal 7 can be inserted into the insertion hole 17 as described above, that is, each insertion hole 17 in the terminal inspection jig 12 and each terminal in the terminal group 8. This is done with the tip of 7 corresponding to the position. Therefore, if all the terminals 7 of the terminal group 8 are in the protruding state within the allowable deflection range, the terminal inspection jig 12 lowered by a certain downward moving distance is inserted through all the terminals 7 of the terminal group 8. It stops in a state of being inserted into each insertion hole 17 of the hole group 18. As a result, the terminal inspection jig 12 descends to the position of the determination line L set in advance, and is thereby attached to the detected portion 23 attached to the terminal inspection jig 12 and the regulation wall 16 of the set portion 11. Thus, the detection unit 22 detects the detected unit 23, and the terminals 7 of the terminal group 8 are all determined to be in the protruding state.

  On the other hand, as shown in FIG. 7, if there is a protruding state defective terminal 7x inclined more than the allowable deflection amount, the terminal 7x cannot be inserted into the insertion hole 17, so that the terminal inspection treatment when the terminal 7x is descending is not possible. The terminal inspection jig 12 comes to abut the tool 12 and stops before the judgment line L. As a result, the detected portion 23 and the detecting portion 22 are not in a state corresponding to the position. Therefore, the detected portion 23 is not detected by the detecting portion 22 when the terminal inspection jig 12 is stopped, and the terminal group 8 It is determined that there is a terminal with a poor protruding state.

  By the way, the terminal inspection apparatus 2 as described above has a problem regarding terminal scraping. As schematically shown in FIG. 8, when the terminal 7 y is inclined at the limit of the allowable deflection amount and the terminal 7 y is inserted into the insertion hole 17 as schematically shown in FIG. In other words, the side surface portion of the terminal 7 that follows is scraped off by the corner portion of the insertion hole 17 to generate the scraped portion 24. The occurrence of such terminal scraping is greatly affected by the amount of insertion of the terminal 7 into the insertion hole 17, and in the case of the terminal inspection device 2, as shown in FIG. 6, with a large insertion amount D exceeding the tapered portion 9. Since it is necessary to make insertion, the possibility of terminal scraping increases.

  Here, the reason why the large insertion amount D is required in the case of the terminal inspection device 2 is as follows. The terminal inspection apparatus 2 determines that the protruding state is good on condition that the terminal inspection jig 12 descends to the determination line L as described above. In this case, the determination line L is provided at the height H (FIG. 5) of the tip of the terminal 7 with the set surface 15 as a reference surface because the detection unit 22 is provided on the restriction wall 16 of the set unit 11. Need to set based on. However, the height H is affected by the tolerance of the electrical connection component 1. That is, it is necessary to plan the height H with a margin width ΔH corresponding to the tolerance of the electrical connection component 1, and to set the determination line L based on that.

  The tolerance of the electrical connection component 1 that affects the height H with respect to the set surface 15 is the tolerance of the cover 3, the housing 4, and the terminal 7, the tolerance of the attachment of the terminal 7 to the housing 4, and the cover of the housing 4. This is the total tolerance of assembly to 3. Therefore, the margin width ΔH (this is also the difference between when the height H of the terminal 7 is the highest and when it is the lowest within the tolerance range of the electrical connection component 1 as shown in FIG. 5B). As a result, it is necessary to set the determination line L on the assumption of a large margin width ΔH, and a large insertion amount D exceeding the tapered portion 9 is required.

  In addition, about the terminal test | inspection which test | inspects the protrusion state etc. of the terminal provided in an electrical connection component, the technique disclosed by patent document 1-patent document 3, etc. is known, for example.

JP 10-38970 A JP 2005-315775 A JP 2007-48676 A

  When the terminal scraping as described above occurs, the electrical connection component may flow to the subsequent process of the terminal inspection process, but this is not preferable. Therefore, it is desirable to be able to effectively prevent occurrence of terminal scraping.

  The present invention has been made in order to meet such a demand, and the problem thereof is a terminal inspection apparatus configured to perform terminal inspection by inserting a terminal through an insertion hole of a terminal inspection jig. An object of the present invention is to effectively prevent occurrence of terminal scraping.

  In the present invention, in order to solve the above-described problem, the protruding state of each terminal in the terminal group with respect to an electrical connection component having a terminal group composed of a plurality of terminals protruding and mounted in a predetermined arrangement pattern on the mounting surface of the holding member In the terminal inspection apparatus used for inspecting, a set surface for setting the electrical connection component, an insertion hole through which the terminal can be inserted is an arrangement pattern corresponding to the arrangement pattern of the terminal in the terminal group. In the state where the terminal inspection jig provided and the electrical connection component set on the set surface can move forward toward the terminal group, the terminal inspection jig can be inserted into the insertion hole. A driving mechanism for causing the tool to perform, formed longer than the protruding length of the terminal from the mounting surface, and integrated with the forward movement of the terminal inspection jig by the driving mechanism By moving the tip, the tip can be brought into contact with the mounting surface, and the integral forward movement is released by the contact of the tip with the mounting surface, and the relationship with the mounting surface. The insertion indicator member fixed in the state, and the detection portion provided on either the terminal inspection jig or the insertion indicator member, and the terminal inspection jig so as to be paired with the detection portion Or having a detected portion provided on either one of the insertion index members, and the detecting portion and the detected portion being in a state corresponding to a position in the forward movement direction of the terminal inspection jig. Comprises a detection mechanism configured to detect the detected portion, and after causing the terminal inspection jig to perform the forward movement so that the tip of the insertion indicator member is in contact with the mounting surface, Further, the terminal inspection jig It is characterized in that said on the condition that the detection of the detected part is made by the detecting unit by causing the forward movement the protrusion state of each terminal is adapted to determine that the good.

  In the terminal inspection apparatus according to the present invention as described above, the reference surface related to the determination line set in the terminal inspection is the mounting surface of the holding member. That is, the determination line can be set based on the height of the tip of the terminal with the mounting surface as the reference surface. Therefore, as the tolerance of the electrical connection parts that affect the planned margin at the tip height of the terminal, the tolerance of the terminal, the tolerance of the holding member (housing 4) and the tolerance of the mounting of the terminal on the holding member (housing 4) are taken into account. For this reason, effective terminal inspection can be performed by allowing insertion with a small insertion amount that does not exceed the taper portion of the terminal, and terminal scraping can be effectively prevented. .

  According to the present invention as described above, it is possible to effectively prevent the occurrence of terminal scraping for the terminal inspection apparatus configured to perform the terminal inspection by inserting the terminal through the insertion hole of the terminal inspection jig. Can do.

  Hereinafter, modes for carrying out the present invention will be described. In FIG. 1, the structure of the terminal inspection apparatus 31 by one Embodiment is simplified and shown with the relationship with the electrical connection component 1 to be examined. The electrical connection component 1 is the same as that in FIG. Accordingly, the electrical connection component 1 is shown with the same reference numerals as in FIG. 5, and the above explanation is used.

  The terminal inspection apparatus 31 is the same as the terminal inspection apparatus 2 in FIG. Therefore, the characteristic configuration of the terminal inspection apparatus 31 will be mainly described below, and the components common to the terminal inspection apparatus 2 are denoted by the same reference numerals as those in FIG. 5, and the above description is used. Shall.

  The terminal inspection device 31 includes an insertion indicator member 32 and a detection mechanism 33. The insertion indicator member 32 is a reference surface of the terminal inspection jig 12 when the terminal inspection jig 12 moves downward (forward movement) until the terminal 7 is inserted into the insertion hole 17 of the terminal inspection jig 12 (this is the This is an element that serves as an index for detecting the height (distance) from (provided by the mounting surface 6 as described later), that is, an index for detecting whether the terminal inspection jig 12 has moved down to the determination line L. For this purpose, the insertion indicator member 32 is longer than the protruding length of the terminal 7 from the mounting surface 6, more specifically, in a state where the tip is in contact with the mounting surface 6 as described later (FIG. 3). The end is formed in a rod shape having a length positioned higher than the holding frame 21. The insertion indicator member 32 is provided so as to penetrate the terminal inspection jig 12 and the bracket 34 provided on the holding frame 21, and is in a penetrating state with respect to the terminal inspection jig 12 and the bracket 34. It is possible to move relative to the terminal inspection jig 12 with a sufficient resistance. In other words, the insertion index member 32 can be moved downward integrally with the downward movement of the terminal inspection jig 12, and the tip can be brought into contact with the mounting surface 6 by the downward movement. By being restricted by the contact, the integral downward movement with the terminal inspection jig 12 is released, and the fixed state is established in relation to the mounting surface 6.

  The detection mechanism 33 includes the detection unit 22 and the detected unit 23 similar to those in the detection mechanism 14 of FIG. However, the detection unit 22 is provided by being attached to the terminal inspection jig 12 via the holding frame 21, and the detected part 23 is provided by being attached to the proximal end portion of the insertion indicator member 32.

  The terminal inspection of the electrical connection component 1 by the terminal inspection apparatus 31 as described above is performed as follows. First, the electrical connection component 1 is set in the setting unit 11 of the terminal inspection device 31 in the state as shown in FIG. This setting is performed in a state in which it is easy to set the electrical connection component 1 to the set portion 11 by making the tip of the insertion index member 32 the same position as the terminal inspection jig 12. Next, as shown in FIG. 2, the insertion indicator member 32 is lowered until the stopper 35 attached thereto abuts against the bracket 34. As a result, the insertion index member 32 is lowered to such an extent that the distance between the tip and the mounting surface 6 is within the stroke range of the drive mechanism 13. The lowering of the insertion indicator member 32 is performed without depending on the drive mechanism 13.

  Then, the drive mechanism 13 is operated to cause the terminal inspection jig 12 to move downward by a certain distance. In this downward movement, the insertion indicator member 32 is lowered integrally with the terminal inspection jig 12, and the tip is attached to the mounting surface 6 before the terminal 7 is inserted into the insertion hole 17, as shown in FIG. By being in contact with the contact surface and being restricted by the contact, the integral downward movement with the terminal inspection jig 12 is released, and a fixed state is established in relation to the mounting surface 6. On the other hand, the terminal inspection jig 12 continues to move downward from this state. In such a downward movement of the terminal inspection jig 12, as shown in FIG. 3, if there is a protruding terminal 7 x that is inclined more than the allowable deflection, the terminal inspection jig 12 is moved halfway by the terminal 7 x. Be stopped. That is, the terminal 7x cannot be inserted into the insertion hole 17, so that the terminal 7x comes into contact with the terminal inspection jig 12 being lowered, and the terminal inspection jig 12 stops before the judgment line L. As a result, the detected portion 23 attached to the insertion index member 32 and the detection portion 22 attached to the terminal inspection jig 12 do not correspond to the positions, and therefore the terminal inspection jig 12 is in a stopped state. It is determined that the detected part 23 is not detected by the detection part 22 and that there is a terminal in the terminal group 8 having a defective protruding state.

  On the other hand, if all the terminals 7 of the terminal group 8 are in a protruding state within the allowable deflection range, the terminal inspection jig 12 is configured such that the terminals 7 of the terminal group 8 are all inserted through holes as shown in FIG. It stops in a state of being inserted into each of the 18 insertion holes 17. As a result, the terminal inspection jig 12 descends to the determination line L, and thereby the detected portion 23 attached to the insertion indicator member 32 and the detection portion 22 attached to the terminal inspection jig 12 come to correspond to each other. Thus, the detected part 23 is detected by the detecting part 22, and it is determined that all the terminals 7 of the terminal group 8 are in the protruding state.

  As described above, in the terminal inspection by the terminal inspection device 31, the insertion indicator member 32 that is fixed with respect to the mounting surface 6 by being brought into contact with the mounting surface 6 is lowered to the determination line L of the terminal inspection jig 12 as an index. To detect. Therefore, the determination line L can be set based on the height h (FIG. 1) of the tip of the terminal 7 with the mounting surface 6 as a reference surface. Accordingly, it is only necessary to consider the tolerance of the terminal 7 and the tolerance of the mounting of the terminal 7 on the housing 4 as the tolerance of the electrical connection component 1 that affects the margin width Δh scheduled for the height h. By performing insertion with a small insertion amount d (FIG. 4) that does not exceed the portion 9, effective terminal inspection can be performed, and occurrence of terminal scraping can be effectively prevented.

  As mentioned above, although the form for implementing this invention was demonstrated, this is only a representative example and this invention can be implemented with various forms in the range which does not deviate from the meaning. For example, the terminal inspection apparatus of the above embodiment is a vertical type, but a horizontal type is also possible. Moreover, the detection part and the to-be-detected part in a detection mechanism are relative, and it can also be set as the form which provides a detection part in a penetration indicator member, and provides a to-be-detected part in a terminal test | inspection jig | tool.

It is a figure which simplifies and shows the structure of the terminal test | inspection apparatus by one Embodiment by the relationship with an electrical connection component. It is a figure which simplifies and shows the relationship between the terminal test | inspection jig | tool and electrical connection components in 1 process in a terminal test | inspection. It is a figure which simplifies and shows the relationship between a terminal test | inspection jig | tool and electrical connection components in case there exists a terminal of a protrusion state defect. It is a figure which simplifies and shows the relationship between the terminal test | inspection jig | tool and electrical connection components in the case of a favorable protrusion state. It is a figure which simplifies and shows the relationship between the conventional terminal test | inspection apparatus and an electrical connection component. It is a figure which simplifies and shows the relationship between the terminal test | inspection jig | tool in the case of the protrusion state favorable in the conventional terminal test | inspection, and an electrical connection component. It is a figure which simplifies and shows the relationship between a terminal test | inspection jig | tool and electrical connection components when there exists a terminal of the protrusion state defect in the conventional terminal test | inspection. It is a figure explaining terminal shaving.

Explanation of symbols

1 Electrical connection parts 4 Housing (holding member)
6 Mounting surface 7 Terminal 8 Terminal group 12 Terminal inspection jig 13 Drive mechanism 15 Set surface 17 Insertion hole 22 Detection part 23 Detected part 31 Terminal inspection device 32 Insertion index member 33 Detection mechanism

Claims (1)

Terminal inspection used to inspect the protruding state of each terminal in the terminal group for an electrical connection component having a terminal group consisting of a plurality of terminals protruding and mounted in a predetermined arrangement pattern on the mounting surface of the holding member (housing) In the device
A set surface for setting the electrical connection parts;
A terminal inspection jig provided with an array pattern corresponding to the array pattern of the terminals in the terminal group, through which the terminals can be inserted;
A drive mechanism for causing the terminal inspection jig to perform a forward movement toward the terminal group in the electrical connection component set on the set surface in a state where the terminal can be inserted into the insertion hole. ,
It is formed longer than the protruding length of the terminal from the mounting surface, and the tip can be brought into contact with the mounting surface by performing a forward movement integrally with the forward movement of the terminal inspection jig by the drive mechanism. And an insertion indicator member that is released from the integral forward movement by contact of the tip with the mounting surface and is in a fixed state in relation to the mounting surface, and the terminal inspection treatment A detector provided on either the tool or the insertion indicator member, and a detected part provided on either the terminal inspection jig or the insertion indicator member so as to be paired with the detector. The detection unit includes a detection mechanism in which the detection unit is configured to detect the detection unit when the detection unit and the detection unit are in a state corresponding to the forward movement direction of the terminal inspection jig. And the terminal inspection After the tool is moved forward to bring the tip of the insertion index member into contact with the mounting surface, the terminal inspection jig is further moved forward to cause the detected portion to be detected by the detecting portion. The terminal inspection apparatus is characterized in that it is determined that the protruding state of each terminal is good on the condition that the above is detected.

Images