JP3003537B2 - Terminal insertion inspection and talc coating equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called direct connection type plug in which one end is connected to a spark plug in a plug hole formed in a cylinder head of an internal combustion engine of an automobile or the like, and an ignition coil is connected to the other end. The present invention relates to an inspection of an insertion state of a joint terminal of a joint device, an inspection of a terminal insertion state for applying talc to an inner peripheral surface of a joint bush, and a talc application device.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a plug joint device 1 of this type has a joint bush 2 formed in a cylindrical shape from an elastic material such as rubber having an insulating property. Inside, a cylindrical terminal body 3
A joint terminal 5 in which a coil spring 4 as a terminal spring is connected to one end side is inserted and mounted.

[0003] An inspection is performed in advance to determine whether the coil spring 4 of the plug joint device 1 is detached or an outgoing inspection is performed to determine whether the terminal body 3 is inserted into a predetermined position.
The talc was applied to the inner peripheral surface of the end of the joint bush 2 for the purpose of reducing the insertion force at the time of being attached to the spark plug and preventing seizure.

For example, the inspection of whether the coil spring 4 has come off from the terminal body 3 when the joint terminal 5 is inserted depends on a visual check that an operator looks into the joint bush 2 from one end side while illuminating the inside of the joint bush 2 with a light. I was

[0005] In addition, in the check-in inspection, as shown in FIGS.
The inspection has been performed using a predetermined gauge bar 6 having a mark portion 6a indicating (for example, ± 0.5). That is, the end portion of the gauge bar 6 is inserted from the terminal body 3 side of the plug joint device 1, and the insertion end of the gauge bar 6 is brought into contact with the edge of the terminal body 3, and the mark portion 6 a of the gauge bar 6 is inserted. By visually checking whether or not the terminal body 3 is located at the edge position of the joint bush 2, it is determined whether the protrusion N of the terminal body 3 is good or bad.

[0006] Furthermore, the amount of talc powder applied is also predetermined, and it has been confirmed that the amount of talc powder applied is large and small and that dirt is confirmed.

[0007]

However, according to the above-mentioned conventional method, all operations depend on the skill of the worker, and there is a possibility that an inspection error may occur due to fatigue or the like, and the reliability is low. In addition, there is a problem that the test level cannot be stabilized due to the judgment error of each individual.

In view of the above problems, it is an object of the present invention to provide a terminal insertion state inspection and a talc coating apparatus which stabilize an inspection level and a talc coating amount and improve reliability. And

[0009]

The technical means for achieving the above object is that a terminal spring composed of a coil spring is connected to one end of a cylindrical terminal body in an insulating cylindrical joint bush. Inspection of the joint terminal insertion state of the plug joint device into which the set joint terminal is inserted, and a terminal insertion state inspection and talc application device for applying talc to the terminal spring side inner peripheral surface of the joint bush, wherein A bush holding mechanism in which the joint bush is held in a horizontal position, and a protrusion checking mechanism arranged on one side of the bush holding mechanism to check a protrusion from an edge of the cylindrical terminal body to an end surface of the joint bush; A talc coating mechanism disposed on the other side of the bush holding mechanism to perform the talc coating; A protrusion measuring rod made of a conductive material which is removably inserted into a joint bush held by a screw holding mechanism and is brought into and out of contact with an end of the cylindrical terminal body; The sleeve is movably fitted in the direction of the center and is held in a resiliently biased manner in the direction of the insertion end of the extra measuring rod,
In addition, an inspection body which comes into contact with an edge of the joint bush so as to be able to freely contact and separate when the insertion measuring rod is inserted into the joint bush, and an inspection in a state where the output measuring rod comes into contact with the edge of the cylindrical terminal body. And a protrusion detector for detecting a relative position of the body with respect to the protrusion measuring rod, wherein the talc coating mechanism is removably inserted into a joint bush held by a bush holding mechanism, and comes into contact with and separates from a terminal spring edge. A talc application rod made of a tubular conductive material having a talc ejection hole on a peripheral surface and being freely elastically contacted; and a talc pressure feed supply unit for feeding talc into the talc application rod by a predetermined amount every time. It is characterized in that it has a conduction detecting unit for detecting conduction between the outgoing measurement rod and the talc coating rod in a state where the measurement rod is in contact with the cylindrical terminal body and in a state where the talc coating rod is in contact with the terminal spring. .

The talc application rod may be so structured as to have a talc application rod rotating mechanism for synchronously rotating the talc application rod about its axis when the talc is pressure-fed into the talc application rod.

Further, a structure may be adopted in which a felt body slidably slidably contacting the inner peripheral surface of the joint bush is mounted on the outer peripheral surface of the insertion end of the talc application rod.

A continuity test by the continuity detecting unit;
A structure may be provided that includes a control unit that sequentially performs the delivery inspection by the delivery inspection mechanism and the talc application by the talc application mechanism.

Further, a structure may be provided which includes a plug joint supply mechanism for supplying a plug joint device to the bush holding mechanism.

[0014]

According to the present invention, an extra measuring rod of the extra inspection mechanism is inserted into the joint bush from one side of the plug joint device held in the horizontal position by the bush retaining mechanism, and is inserted into the end of the cylindrical terminal body. Abut. Also, the talc application rod of the talc application mechanism is inserted into the joint bush from the other side of the plug joint device held in the horizontal position by the bush holding mechanism, and elastically contacts the terminal spring edge.

In this state, an electric current is applied between the exchanging measuring rod and the talc coating rod, and it is detected whether or not conduction is made through the joint terminal. At this time, if the conduction is detected by the conduction detection unit, the terminal spring is not detached. If the conduction is not detected, it is determined that the terminal spring is detached.

In addition, on the outgoing inspection mechanism side, an outgoing detector detects the relative position of the test object abutting on the joint bushing edge with respect to the outgoing measuring rod, and based on the relative position, the quality of the outgoing of the terminal body is determined. A defect is determined.

Further, on the talc coating mechanism side, a predetermined amount of talc is pressure-fed into the talc coating rod from the talc pressure feeder,
The talc is applied by ejecting the talc ejection hole of the talc application rod to the inner peripheral surface of the joint bush.

[0018] Accordingly, the inspection of the detachment of the terminal spring, the inspection of the extension of the terminal body, and the application of a predetermined amount of talc can be automatically performed, and each operation can be performed without depending on the skill of the operator. Therefore, the inspection level and the amount of talc applied can be stabilized, and the reliability can be improved.

Further, when the talc is pressure-fed into the talc coating rod, if the talc coating rod is provided with a talc coating rod rotating operation mechanism for synchronously rotating the talc coating rod about its axis, the talc coating mechanism can be used. The talc spouted from the spout hole is uniformly distributed and supplied to the inner peripheral surface of the joint bush, so that the talc application can be made uniform.

Furthermore, if a felt body is slidably attached to the inner peripheral surface of the joint bush on the outer peripheral surface of the insertion end of the talc applying rod, the talc applying rod is pulled out of the joint bush. At the time of removal, the felt body slides on the inner peripheral surface of the joint bush, and the talc applied to the inner peripheral surface of the joint bush is leveled by the sliding of the felt body, so that the talc application can be further uniformized.

Further, if a structure is provided which includes a control unit for sequentially performing a continuity test by a continuity detecting unit, a discharge inspection by the above-mentioned discharge inspection mechanism, and a talc coating by a talc coating mechanism, a stage determined to be defective is obtained. Therefore, there is no need to perform the subsequent steps, and waste can be effectively prevented.

Further, if the structure is provided with a plug joint supply mechanism for supplying the plug joint device to the bush holding mechanism, the supply of the plug joint device is automated, and the joint terminal is inserted at a stable pace. Inspection and talc application can be performed.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing the entirety of the present invention.
1, a changeover inspection mechanism 12 provided on one side of the bush holding mechanism 11, and a talc coating mechanism 13 provided on the other side of the bush holding mechanism 11. Further, the plug joint device 1 is moved from the withstand voltage test device 14 on the upstream side of the assembly process of the plug joint device 1 to the bush holding mechanism 1.
1 is provided with a plug joint supply mechanism 15.

The withstand voltage test device 14 includes an inspection bush chuck mechanism 17 for releasably holding the joint bush 2 into which the joint terminal 5 is inserted, that is, the plug joint device 1 in a lateral posture, and an inspection bush chuck mechanism 17. A voltage applying mechanism 18 for inspecting the held plug joint device 1 for leakage is provided.

Then, the plug joint supply mechanism 1
Reference numeral 5 is provided between the inspection bush chuck mechanism 17 and the bush holding mechanism 11, and is configured to take out the plug joint device 1 from the inspection bush chuck mechanism 17 and supply the plug joint device 1 to the bush holding mechanism 11.

The inspection bush chuck mechanism 17 is provided with an expansion / contraction operation mechanism 22 for operating the pair of ground chuck bodies 21 in a horizontal direction on a base 20 by an air cylinder or the like. The two earth chuck bodies 21 are expanded and approached to each other by 22 so that the joint bush 2 of the plug joint device 1 is releasably held from the outer peripheral side by the expanding and approaching operations of the earth chuck bodies 21. Is configured.

Each earth chuck body 21 is SS41.
And the like, and is supported on the side of the expansion / contraction operation mechanism 22 via an insulating member 23 made of an insulating material such as MC nylon.

In order to hold the joint bush 2 in a horizontal position with the axis of the joint bush 2 in the horizontal direction, an arcuate shape corresponding to the joint bush 2 is provided on the inner surfaces of the ground chuck bodies 21 facing each other. Each holding groove is formed.

Each of the earth chuck bodies 21 is grounded via an earth leakage detector, and the earth leakage detector is configured to detect a current flowing from the earth chuck body 21 to the earth, and to display or inform. ing.

The voltage applying mechanism 18 is provided with a cylinder support 26 at one end side on a substrate 25, and an operation cylinder 27 composed of a hydraulic cylinder is mounted and supported on the cylinder support 26. The piston shaft of the operation cylinder 27 is disposed so as to have the same axis as the axis of the joint bush 2 held by the earth chuck body 21 of the inspection bush chuck mechanism 17.

A guide rail extending in the direction in which the piston shaft of the operation cylinder 27 advances and retreats is provided on the other end of the substrate 25, and a slide body is slidably mounted along the guide rail. , The piston shaft of the operation cylinder 27 is connected to the slide body.

On the slide body, there is mounted an insulating support 28 formed of an insulating material such as MC nylon or the like in a substantially U shape when viewed from the front. In addition, the end face of the standing wall portion of the insulating support body 28 on the side of the inspection bush chuck mechanism 17 includes:
Electrode support 2 made of insulating material such as MC nylon
9 is mounted.

Further, the electrode having the same axis as that of the joint bush 2 held by the earth chuck body 21 of the inspection bush chuck mechanism 17 penetrates the standing wall portion and the electrode support 29 in a penetrating manner. An electrode rod 30 is provided as a part, and a connection cord from an unillustrated ignition coil is connected to the electrode rod 30.

Then, by the operation of the operation cylinder 27,
The insulating support 28 is pushed toward the inspection bush chuck mechanism 17 side, and the electrode rod 30 is brought into contact with the joint terminal 5 in the joint bush 2 held in the earth chuck body 21 in a horizontal position. Is applied to the joint terminal 5 via the connection cord and the electrode rod 30, and it is configured to check whether there is a leakage on the leakage detector side.

As shown in FIGS. 1 to 3, the bush holding mechanism 11 has a bush receiving jig 34 made of a synthetic resin such as MC nylon on a base 33. On the upper surface side, an upwardly open retaining groove 35 corresponding to the joint bush 2 is formed so as to hold the joint bush 2 in a horizontal position with the axis of the joint bush 2 being horizontal.

The holding groove 35 of the bush receiving jig 34
A detector such as a sensor for detecting the joint bush 2 held therein is appropriately provided.

As shown in FIGS. 1 to 4, 6 and 7, the outgoing inspection mechanism 12 is mounted on a base 37 in the axial direction of the joint bush 2 held by the bush receiving jig 34. Is provided, and a slide body 39 is mounted slidably along the guide rail 38.

An operation cylinder 40 composed of an air cylinder or the like is mounted on one side of the base 37, and the piston shaft of the operation cylinder 40 and the slide body 39 are linked to each other via a free joint 41 or the like.

On the slide body 39, a delivery inspection unit 42 is provided.
The projection checking unit 42 includes a projection measuring rod 43 disposed so as to have the same axis as the axis of the joint bush 2 held by the bush receiving jig 34, M fitted to the measuring rod 43 so as to be movable in the axial direction thereof.
An inspection float 44 serving as an inspection body made of a synthetic resin such as C nylon, a projector 45 a for detecting the relative position of the inspection float 44 with respect to the extra measuring rod 43, and a light receiver 45.
b) and an optical sensor 45 as a change detection detector.

The protruding measuring rod 43 is connected to the operating cylinder 4.
By the operation of No. 0, the joint bush 2 is moved in the direction of the joint bush 2 held by the bush receiving jig 34, and is configured to come into contact with the edge of the terminal body 3 in the joint bush 2 so as to be able to freely contact and separate.

The outgoing measurement bar 43 is made of a conductive material such as a metal bar, is mounted on the slide body 39 via an insulating material, and is electrically connected to the continuity detector 46.

Further, a restricting flange portion 47 for restricting the movement of the inspection float body 44 in the axial direction is provided in a protruding manner at the end of the protruding measuring rod 43 on the terminal body 3 side. Further, a coil spring 48 for resiliently urging the inspection float body 44 in the direction of the regulating flange portion 47 is mounted on the next measurement bar 43 in a form of a sleeve, and the inspection float body 44 is resiliently biased by the coil spring 48. It is in elastic contact with the regulating flange portion 47.

When the protruding measuring rod 43 comes into contact with the edge of the terminal body 3 in the joint bush 2, the inspection float body 44 comes into contact with the end face of the joint bush 2 so as to be able to freely come and go. It is configured to be moved in the axial direction of the second measuring rod 43 against the elastic urging force.

As shown in FIGS. 6 and 7, the light emitter 45a and the light receiver 45b of the optical sensor 45 are disposed opposite to each other with the extra measurement bar 43 interposed therebetween. It is configured to detect the inspection float body 44 moved along. That is, the optical sensor 45 is configured to detect the relative position of the inspection float body 44 with respect to the next measurement rod 43 by detecting the light blocking width by the inspection float body 44. The optical sensor 45 employs a sensor capable of setting a range up to 1/1000 mm.

As shown in FIGS. 1 to 3 and FIGS. 5 to 7, the talc coating mechanism 13 is mounted on a base 51 in the axial direction of the joint bush 2 held by the bush receiving jig 34. An extending guide rail 52 is provided, and a slide body 53 is slidably mounted along the guide rail 52.

An operation cylinder 54 composed of an air cylinder or the like is mounted on one side of the base 51, and the piston shaft of the operation cylinder 54 and the slide body 53 are interlocked via a free joint 55 or the like.

On the slide body 53, a cylindrical talc coating rod 56 is disposed via a support mechanism 57 so as to have the same axis as the axis of the joint bush 2 held by the bush receiving jig 34. Have been. That is, the talc coating rod 5
Numeral 6 is made of a conductive material such as a metal pipe, and is supported on the support mechanism 57 side via an insulating material so as to be relatively rotatable around its axis and to be movable by a predetermined distance in its axial direction. .

The talc coating rod 56 is electrically connected to the conduction detecting section 46. Further, as shown in FIG. 3, the talc coating rod 56 is supported by a resilient bias so as to move in the direction of the joint bush 2 via the coil spring 58.

Further, a driven gear 59 is fixed to a middle part of the talc coating rod 56 in the longitudinal direction, and the driven gear 59 is attached to a rotating shaft of a rotary actuator 60 such as an air cylinder mounted on one side of the support mechanism 57. A drive gear 61 meshing with 59 is fixed.

When the rotary actuator 60 is operated, the talc coating rod 56 is moved through the gears 61 and 59.
Are configured to be able to rotate forward and backward by a predetermined angle around the axis thereof, and these constitute a talc application rod rotating operation mechanism. For example, in the present embodiment, the configuration is such that the talc coating rod 56 can be rotated about 300 degrees.

Further, the insertion end face of the talc coating rod 56 inserted into the joint bush 2 is closed, and the peripheral surface of the insertion portion of the talc coating rod 56 is shown in FIGS. As shown in FIG. 7, a plurality of talc ejection holes 62 are formed at appropriate intervals.

Further, the outer peripheral surface of the end of the insertion portion of the talc application rod 56 is slidably slidably contacted with the inner peripheral surface of the joint bush 2 when the talc application rod 56 is inserted into and removed from the joint bush 2. An annular felt body 63 is mounted by bonding or the like.

The talc application rod 56 is connected to the talc pressure supply unit 65 by a pipe, and compressed air is supplied from the talc pressure supply unit 65 into the talc application rod 56 based on a command signal from a control unit (not shown). The talc is configured to be pressure-fed by a predetermined amount by intermittent supply.

The plug joint supply mechanism 15 includes:
Earth chuck body 21 of inspection bush chuck mechanism 17
A pair of chuck mechanisms 67 for releasably holding both ends of the joint bush 2 held in the axial direction in the axial direction.
(See FIGS. 2 and 3) are provided so as to be freely opened and closed.

Each of the chuck mechanisms 67 is lowered from the initial position above the joint bush 2 of the plug joint device 1 held by the earth chuck body 21 in an expanded state, and is moved closer to the joint bush 2 when it reaches the position. Here, both ends of the joint bush 2 are gripped by a pair of chuck mechanisms 67, respectively.

Next, when the earth chuck body 21 is expanded and the gripping of the joint bush 2 is released, each chuck mechanism 67 is raised, and thereafter, the chuck mechanism 67 is raised above the bush holding mechanism 11 arranged on one side. The traverse movement operation is performed.

Each of the chuck mechanisms 67 is a bush holding mechanism 1
1, each chuck mechanism 67 is lowered, and when the joint bush 2 is positioned in the holding groove 35 of the bush receiving jig 34, each chuck mechanism 67 is expanded, and then each chuck mechanism 67 is opened. Is lifted,
Next, the traverse movement operation is performed to return the inspection bush chuck mechanism 17 to the initial position above the inspection bush chuck mechanism 17. Here, the plug joint device 1 is supplied to the bush holding mechanism 11.

In the initial position of each chuck mechanism 67, a plug joint take-out mechanism (not shown) located above the bush holding mechanism 11 is provided. The chuck mechanism is driven in synchronization with the chuck mechanism 67 of the plug joint supply mechanism 15, and when the joint bush 2 is taken out from the inspection bush chuck mechanism 17, the bush holding mechanism 1 is provided.
1 is configured to take out a plug joint device 1, that is, a joint bush 2.

The embodiment of the present invention is constructed as described above. Next, the terminal insertion state inspection and the continuity inspection, the outgoing inspection, and the control operation of the talc coating by the control unit (not shown) of the talc coating apparatus 10 will be described. Will be described.

That is, when the leakage test of the plug joint device 1 is completed by the withstand voltage test device 14, the plug joint supply mechanism 15 is driven, and after the pair of chuck mechanisms 67 are lowered, each of the chuck mechanisms 67 is moved. An approach operation is performed to grip the joint bush 2. Thereafter, when the two earth chuck bodies 21 are opened and the holding of the joint bush 2 is released, the pair of chuck mechanisms 67 are raised, and the plug joint device 1 is taken out from the inspection bush chuck mechanism 17.

Next, when each of the chuck mechanisms 67 is traversed and arrives above the bush holding mechanism 11, it is stopped, and each of the chuck mechanisms 67 is lowered. Then, when the plug joint device 1 is supplied to the holding groove 35 of the bush receiving jig 34, each chuck mechanism 67 is subjected to an opening operation and thereafter returned to the initial position. Here, the joint bush 2 of the plug joint device 1 is held by the bush receiving jig 34 in a predetermined lateral orientation.

On the other hand, when the detector detects that the joint bush 6 is held by the bush holding mechanism 11, the next-generation inspection mechanism 12 and the talc coating mechanism 13
Is driven. That is, the respective operation cylinders 40 and 54 of the discharge inspection mechanism 12 and the talc coating mechanism 13 are operated, and the discharge measurement rod 43 and the talc coating rod 56 are moved from both axial sides of the plug joint apparatus 1 toward the plug joint apparatus 1. Advance.

When the extruding measuring rod 43 and the talc coating rod 56 are respectively moved by a predetermined distance, the insertion end of the extruding measuring rod 43 is moved to the terminal 3 in the joint bush 2 as shown in FIG. Talc coating stick 5
6 is the coil spring 4 in the joint bush 2
A state of elastic contact with the edge is obtained.

In addition, when the protruding measuring rod 43 is inserted into the joint bush 2, the inspection float body 44 comes into contact with the end face of the joint bush 2, and the shaft of the protruding measuring rod 43 resists the elastic force of the coil spring 48. Moved in the direction of the heart.

In this state, an electric current is passed between the extra measuring rod 43 and the talc coating rod 56, for example, the talc coating rod 56.
A current is passed from the side to the coil spring 4, the terminal body 3, and the margin measuring rod 43, and the conduction detecting unit 46 determines whether or not conduction has occurred.
(Continuity inspection step). At this time, the conduction detecting unit 46
As a result, if this conduction is detected, the coil spring 4 does not come off (non-defective product).
Is determined by the control unit to be detached (defective product).

If the continuity inspection process determines that the product is non-defective,
Next, the process proceeds to a delivery inspection process. In the outgoing inspection step, the optical sensor 45 is operated in the above state, the laser beam emitted from the light emitting unit 45a is received by the light receiving unit 45b, and the outgoing N of the terminal body 3 is detected by detecting the light shielding width by the inspection float body 44. Is detected, and it is determined whether the product N is non-defective or defective based on whether the stock N is within an allowable range.

If it is determined that the product is non-defective in the above-mentioned delivery inspection process,
Next, the process proceeds to a talc coating step. In the talc coating process,
Based on a command signal from the control unit, a predetermined amount of talc is pressure-fed from the talc pressure feeding / supplying unit 65 into the talc coating rod 56 using compressed air. At this time, the rotary actuator 60 is operated in synchronization with the predetermined amount of talc being pumped, and the talc application rod 56 is rotated about its axis via the gears 61 and 59.

Accordingly, talc is ejected from the talc ejection holes 62 to the inner peripheral surface of the joint bush 2 while the talc application rod 56 rotates.

Thereafter, the operating cylinders 40 and 54 are operated, and the extra measuring rod 43 and the talc coating rod 56 are pulled out of the joint bush 2. At this time, the talc coating rod 5
6, the felt body 63 attached to the outer peripheral surface of the insertion end slides on the inner peripheral surface of the joint bush 2, and the felt body 63
The talc applied to the inner peripheral surface of the joint bush 2 is leveled by the sliding of.

It should be noted that the talc coating step is omitted if it is determined that the product is defective in the continuity inspection step or the outgoing inspection step.

When the talc application step is completed (when the talc application step is omitted, after a lapse of the same time as that step), the plug joint removal mechanism is driven, and after the pair of chuck mechanisms are operated to descend, Each of the chuck mechanisms is operated to approach each other to grip the joint bush 2 of the plug joint device 1, and then the chuck mechanism is operated to ascend, and the plug joint device 1 having undergone each inspection and talc application from the bush holding mechanism 11. Taken out.

Next, each chuck mechanism is traversed and the plug joint device 1 is carried out to a predetermined position.

Further, while the leakage test is performed by the withstand voltage test device 14, the terminal insertion state test and the continuity test, the outgoing inspection, and the talc coating are sequentially performed by the talc coating device 10, and the inspection bush chuck While the plug joint device 1 is taken out of the mechanism 17, the plug joint device 1 is taken out of the bush holding mechanism 11, and while the plug joint device 1 is supplied to the bush holding mechanism 11, the inspection bush chuck mechanism 17 is newly inserted. The plug joint device 1 is configured to be supplied.

As described above, the plug joint apparatus 1 is automatically supplied, and the inspection of the detachment of the coil spring 4 of the plug joint apparatus 1, the inspection of the terminal N of the terminal body 3, and the application of a predetermined amount of talc are automatically performed. Since each operation is performed automatically without depending on the skill of the operator, the inspection of the joint terminal insertion state and talc application can be performed at a stable pace, stabilizing the inspection level and talc The application amount can be stabilized, and the reliability can be improved.

When the talc is pressure-fed into the talc coating rod 56, the talc coating rod 56 is rotated around its axis in synchronization with the talc coating rod 56. The talc ejected to the inner peripheral surface of the bush 2 is more uniformly dispersed and supplied, so that the talc application can be made uniform.

Further, when the talc coating rod 56 is pulled out of the joint bush 2, the felt body 6 at the insertion end is removed.
Since the structure 3 slides on the inner peripheral surface of the joint bush 2, the talc applied to the inner peripheral surface of the joint bush 2 is leveled by the sliding of the felt body 63, and the talc application can be further uniformized. .

Further, a continuity test by the continuity detecting unit 46 and
Check-in by the check-in mechanism 12 and the talc coating mechanism 1
3 is a control method of sequentially performing talc application, so that there is no need to perform the subsequent steps when a defective product is determined, so that waste of talc application can be effectively prevented and talc application is performed. A missing product can be easily determined to be defective.

Further, by displaying ± the difference of the outgoing N with respect to the outgoing standard length L, the dispersion of the outgoing N can be easily understood and the data management by the personal computer becomes easy. Further, by adopting the optical sensor 45 capable of setting a range up to the unit of 1/1000 mm, it is possible to easily cope with a change in the setting of the stock change N and a variation due to a product.

[0079]

As described above, according to the terminal insertion state inspection and talc coating apparatus of the present invention, the bush holding mechanism in which the joint bush of the plug joint apparatus is held in the horizontal position, and the bush holding mechanism from the edge of the cylindrical terminal body. A protrusion checking mechanism provided on one side of the bush holding mechanism for checking a protrusion to the joint bush end face, and a talc coating mechanism provided on the other side of the bush holding mechanism for performing the talc coating. The protrusion inspection mechanism comprises a conductive material which is removably inserted into a joint bush held by a bush holding mechanism and is brought into and out of contact with an end edge of the cylindrical terminal body. The rod and the protruding measuring rod are movably fitted in the axial direction thereof and are held in a biasing manner in the direction of the insertion end of the protruding measuring rod. Before Detecting the relative position of the test object with respect to the protruding measurement rod in a state where the test object is brought into contact with the edge of the joint bush so as to be able to freely contact and separate at the time of insertion, and the protruding measurement rod is in contact with the edge of the cylindrical terminal body. And a talc coating mechanism which is removably inserted into a joint bush held by a bush holding mechanism, is elastically contacted with the terminal spring edge so as to be able to come and go, and has talc on its peripheral surface. A talc application rod made of a cylindrical conductive material having an ejection hole, and a talc pressure supply unit that pressure-feeds talc by a predetermined amount into the talc application rod, and in a state where the cylindrical terminal body of the extra measurement rod abuts. The talc coating rod is provided with a conduction detecting unit for detecting conduction between the extra measuring rod and the talc coating rod in a state where the talc coating rod is in elastic contact with the terminal spring. Inspection of cost and application of a predetermined amount of talc automatically Can be done,
Here, since each operation is performed without depending on the skill of the operator, there is an advantage that the inspection level and the amount of talc applied can be stabilized, and the reliability can be improved.

Further, when the talc is pressure-fed into the talc coating rod, if the talc coating rod has a structure provided with a talc coating rod rotating operation mechanism for synchronously rotating the talc coating rod around its axis, There is an advantage that the talc spouted from the spout hole is more uniformly supplied to the inner peripheral surface of the joint bush, and the talc application can be made uniform.

Further, if a felt body is slidably attached to the inner peripheral surface of the joint bush on the outer peripheral surface of the insertion end of the talc applying rod, the talc applying rod is removed from the joint bush. At the time of removal, the felt body slides on the inner peripheral surface of the joint bush, and the sliding of the felt body smoothes the talc applied on the inner peripheral surface of the joint bush, so that the talc application can be further uniformized. is there.

Further, if the structure is provided with a control unit for sequentially performing a continuity inspection by the continuity detecting unit, a second inspection by the second inspection unit, and a talc coating by the talc coating mechanism, the stage determined to be defective is obtained. Therefore, there is an advantage that the subsequent steps need not be performed, and waste can be effectively prevented.

Further, if the structure is provided with a plug joint supply mechanism for supplying the plug joint device to the bush holding mechanism, the supply of the plug joint device is automated, and the joint terminal is inserted at a stable pace. There is an advantage that inspection and talc application can be performed.

[Brief description of the drawings]

FIG. 1 is an overall schematic explanatory view showing an embodiment of the present invention.

FIG. 2 is an explanatory plan view of a terminal insertion state inspection and talc coating apparatus.

FIG. 3 is an explanatory front view of FIG. 2;

FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 3;

FIG. 5 is a view taken along line VV of FIG. 3;

FIG. 6 is an explanatory diagram of an operation of a main part.

FIG. 7 is an explanatory diagram of an operation of a main part.

FIG. 8 is a sectional view of a plug joint device.

FIG. 9 is an explanatory diagram showing a conventional example of a delivery check.

FIG. 10 is an explanatory diagram showing a conventional example of a delivery check.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plug joint apparatus 2 Joint bush 3 Terminal body 4 Coil spring 5 Joint terminal 10 Terminal insertion state inspection and talc coating apparatus 11 Bush holding mechanism 12 Outgoing inspection mechanism 13 Talc coating mechanism 15 Plug joint supply mechanism 43 Outgoing measurement rod 44 Inspection float Body 45 Optical sensor 46 Continuity detector 48 Coil spring 56 Talc application rod 59 Follower gear 60 Rotary actuator 61 Drive gear 62 Talc ejection hole 63 Felt body 65 Talc pressure feeder

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B05C ^7/ 00-7/08 B05C 9/00 B05D 7/22 F02P 13/00 303 H01T 13/04 G01M 19 / 02

Claims (5)

(57) [Claims] 1. A joint terminal insertion state of a plug joint device in which a joint terminal having a terminal spring made of a coil spring connected to one end of a cylindrical terminal body is inserted into a cylindrical joint bush having insulation properties. A terminal insertion state inspection and talc coating device for performing talc coating on a terminal spring side inner peripheral surface of the joint bush, wherein a bush holding mechanism in which the joint bush of the plug joint device is held in a horizontal position; A protrusion inspection mechanism provided on one side of the bush holding mechanism for inspecting a protrusion from the terminal body edge to the joint bush end surface, and a second protrusion inspection mechanism provided on the other side of the bush holding mechanism for performing the talc coating. Talc coating mechanism, and the out-of-place inspection mechanism is inserted and removed within a joint bush held by a bush holding mechanism. And a protrusion measuring rod made of a conductive material which is inserted into the cylindrical terminal body and comes into contact with the edge of the cylindrical terminal body so as to be able to come and go freely. An inspection body which is held in a resiliently biased manner in the direction of the insertion end of the rod, and which comes into contact with the edge of the joint bush so as to be able to come and go when the insertion rod is inserted into the joint bush; A protrusion detector that detects a relative position of the test object to the protrusion measurement rod in a state where the protrusion measurement rod is in contact with the terminal body edge, wherein the talc coating mechanism is a joint held by a bush holding mechanism. A talc coating rod made of a tubular conductive material having a talc ejection hole on a peripheral surface thereof, which is removably inserted into the bush and elastically contacts the terminal spring edge; And a talc pressure feeding supply unit for feeding a predetermined amount of It is provided with a conduction detecting unit for detecting conduction between the protruding measurement bar and the talc application rod in a state where the protruding measurement rod is in contact with the cylindrical terminal body and the talc application rod is in a terminal spring elastic state. A terminal insertion state inspection and talc coating device. 2. A talc application rod rotating mechanism for synchronously rotating the talc application rod about its axis when the talc is pressure-fed into the talc application rod. The terminal insertion state inspection and talc coating device according to claim 1. 3. An outer peripheral surface of an insertion end of the talc application rod,
3. The terminal insertion inspection and talc coating device according to claim 2, wherein a felt body slidably slidably attached to an inner peripheral surface of the joint bush. 4. The control device according to claim 1, further comprising a control unit for sequentially performing a continuity test by the continuity detection unit, a second inspection by the second inspection mechanism, and a talc application by a talc application mechanism. Terminal insertion state inspection and talc coating equipment. 5. The terminal insertion state inspection and talc coating device according to claim 1, further comprising a plug joint supply mechanism for supplying a plug joint device to the bush holding mechanism.