JP2001204115A - Inspection jig for terminated coaxial cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspection jig for terminated coaxial cables that enables easy and accurate inspection of a terminated coaxial cable with stability regardless of the state of the cable. SOLUTION: In the inspection jig, a pair of conductive plates are set opposite to each other so that the interval between them in the direction of the axis of an extending terminated coaxial cable 10 is smaller than the specified length of the exposed portion of the inner covering 2 of the cable, and are capable of detecting the presence or absence of continuity with the inner covering 2 clamped between them in the direction perpendicular to the direction of the axis (vertical direction). The conductive plates comprise a pair of electrode plates 5a and 6a that are set opposite to each other with a first interval, smaller than the specified length, provided between them and to which a voltage for detection is applied and a pair of electrode plates 5b and 6b that are set opposite to each other with a second interval, smaller than the first interval, between them and brought into contact with the electrode plates 5a and 6a with the outer walls of the electrode plates 5b and 6b in the inner walls of the electrode plates 5a and 6a in the vertical direction. The electrode plates 5a and 6a and the electrode plates 5b and 6b are provided with a notch in such a shape that the inner covering 2 can be clamped between them in the vertical direction, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal-processed coaxial cable which is mainly obtained by processing a coaxial cable, and which is used as an intermediate product for assembling a connector by crimping contacts. The present invention relates to a terminal-processed coaxial cable inspection jig for inspecting a finished condition.

[0002]

2. Description of the Related Art Conventionally, when processing a coaxial cable of this type and assembling it as a connector, for example, a process procedure shown in a flowchart as shown in FIG. 5 is followed.
That is, first, a cable cutting for cutting a uniaxially extending coaxial cable having an appropriate length, in which a silled wire is provided so as to be covered with a sheath called a sheath all around the inner sheath covered with the core wire. After performing (Step S1), the inner sheath portion and the outer sheath portion of the coaxial cable are cut off by cable end processing (Step S2), so that the exposed portion of the shielded wire and the exposed portion of the core wire around the inner sheath portion are removed. A coaxial cable with a terminal processed as an intermediate product formed so that the length of the exposed portion in the one axial direction defined by the distance of the inner cover portion is a predetermined interval.

[0003] Next, as a result of inspecting the terminal processing state of the coaxial cable having been subjected to terminal processing by an intermediate product inspection (step S3), if it is defective, it is corrected (step S4), and the intermediate product inspection (step S3) is performed again. To do,
In the case of a non-defective product, the contact is subsequently crimped to the core wire and the inner jacket, and the contact is covered with a shield cap to cover the exposed portion of the shielded wire with the shield cap (step S5). The contact is completed by fitting the insulator into the shield cap and assembling the contact to cover the contact and the shield cap with the insulator (step S6).

FIG. 6 is a side view showing one embodiment of a coaxial cable 10 having a processed terminal which has become defective after the above-described cable terminal processing (step S2). Here, as a result of the cable end processing (step S2), the inner sheath 2 and the outer sheath 4 of the coaxial cable are cut off, and the distance between the exposed portion of the shielded wire 3 and the exposed portion of the core wire 1 around the inner sheath 2 is shown. In addition to the fact that the length of the exposed portion of the inner covering portion 2 defined by the formula (1) is a predetermined interval, a defective shielded wire (commonly known as a whisker) which is a processing failure portion of the shielded wire 3 around the exposed portion of the inner covering portion 2 Coaxial cable 1 with a terminal processed in a form in which wire 3a extends
This shows a state in which 0 is formed.

[0005] Fig. 7 is a side view showing another embodiment of the coaxial cable 10 which has become a defective after the above-mentioned cable terminal processing (step S2). Here, similarly, as a result of the cable terminal processing (step S2),
The inner sheath 2 and the outer sheath 4 of the coaxial cable are cut off, and the length of the exposed portion of the inner sheath 2 defined by the distance between the exposed portion of the shielded wire 3 and the exposed portion of the core wire 1 around the inner sheath 2. In addition to the predetermined interval, the terminal-processed coaxial cable 10 has a form in which a defective core wire (commonly referred to as a whisker line) 1a, which is a processing defect portion of the core wire 1, extends around the exposed portion of the inner jacket portion 2. Are formed.

The terminal-processed coaxial cable 10 having the defective silled wire 3a or the defective core wire 1a needs to be accurately detected by the intermediate product inspection (step S3). Usually, if the intermediate product inspection (step S3) and the correction (step S4) are carefully performed by hand, it is possible to assemble the connector with a good yield while eliminating defective products. In many cases, mass production is performed by performing a series of automation processes in an assembling process procedure. Therefore, in the intermediate product inspection (step S3), an inspection jig and an inspection apparatus to which the inspection jig is applied are used.

FIG. 8 is a top view showing, in partial cross section, a basic configuration of an inspection apparatus to which a conventional terminal-processed coaxial cable inspection jig is applied. In this inspection apparatus, the inspection table 2
A pair of fixed bases 21a and 21b, which are connected to each other by a spring 22, are provided at a substantially central portion on the base plate 0, and holes for receiving the terminal-processed coaxial cable 10 are provided at predetermined positions of these fixed bases 21a and 21b. An inspection jig is provided in which a pair of electrode plates 15 and 16 provided with portions are fixed via a spacer so as to be opposed to each other at a predetermined interval. Also, switches 24a, 2 provided on the inspection table 20 are provided outside the pair of fixed tables 21a, 21b.
Air cylinders 23a and 23b driven by pressing down and turning on 4b, respectively, are provided to face each other. Further, a display device 25 is connected to the pair of electrode plates 15 and 16 via lead wires 11 and 12, respectively.

The hole provided in the electrode plate 15 has a diameter capable of inserting the inner sheath 2 of the coaxial cable 10 having a terminal processed, and the hole provided in the electrode plate 16 has a terminal processed. It has a diameter larger than the diameter of the hole of the electrode plate 15 so that the shielded wire 3 of the coaxial cable 10 can be inserted. The display device 25 checks the intermediate product (step S3).
Display lamp 25 such as an LED that indicates OK
a and a display lamp 25b such as an LED for displaying NG, and a power supply unit for supplying power to the display lamps 25a and 25b and applying a detection voltage to the lead wires 11 and 12. I have.

In this inspection apparatus, when inspecting the terminal-processed coaxial cable 10, the switch 24 a on the inspection table 20 is inserted with the terminal-processed coaxial cable 10 inserted into the holes of the pair of electrode plates 15, 16. , 24b is pressed and turned on to allow the air cylinder 23
a and 23b are driven.

When one of the switches 24a, 24b is depressed and turned on, the air cylinders 23a, 23b are turned on.
When any one of the above is driven, the fixed bases 21a and 21b provided with the inspection jig and connected by the spring 22 receive the air pressure of the driven one of the air cylinders 23a and 23b and receive the air pressure. Move to the no side,
At this time, the hole edge wall of the electrode plate 15 and the hole edge wall of the electrode plate 16 come into contact with the inner jacket portion 2 and the shield wire 3 of the coaxial cable 10 having been processed.

When both the air cylinders 23a and 23b are driven by depressing and turning on both the switches 24a and 24b, an inspection jig is provided, and the fixed bases 21a and 21b connected by the spring 22 are moved. When the air cylinders 23a and 23b are driven by air pressure, the air cylinders 23a and 23b move close to each other. The wall and the hole edge wall of the electrode plate 16 are in contact with each other.

In each case, the electrode plate 15 is attached to the inner sheath 2 and the shielded wire 3 of the coaxial cable 10 which has been processed.
The hole edge wall of the electrode plate 16 and the hole edge wall of the electrode plate 16 are in contact with each other, so that if the terminal-processed coaxial cable 10 has a defective shielded wire 3a or a defective core wire 1a, conduction between the electrode plates 15 and 16 is established. Then, the display device 25 detecting this state turns on the display lamp 25b indicating NG, but the defective shield line 3a
If there is no defective core wire 1a, there is no conduction between the electrode plates 15 and 16, and the display device 25 detecting this state turns on the display lamp 25a indicating OK.

In this way, it is possible to inspect whether the coaxial cable 10 with the processed terminal is a good product or a defective product.

[0014]

In the case of the above-described inspection apparatus, the opposing electrode plate of the inspection jig has a function of coming into contact with the inner jacket portion of the coaxial cable having been subjected to terminal processing and the shield wire during driving. In the inspection of the defective shield wire, which is the defective processed portion of the shield wire as shown in FIG. 6, the defect can be detected accurately. However, in the inspection of the defective core wire which is the defective processed portion of the core wire as shown in FIG. If the distal end of the core wire is not in contact with the shield wire, there is a problem that the failure cannot be detected accurately.

FIG. 9 shows a defective core wire 1a shown in FIG. 7 which cannot be accurately determined as a defective product by inspection by a conventional inspection device.
FIG. 7 is a view for explaining a problem when assembling as a connector with respect to the terminal-processed coaxial cable 10 having the defective core wire 1a. (B) shows the state of crimping of a contact using a terminal-processed coaxial cable 10 having a defective core wire 1a. FIG. 7C is a side view showing a state of assembling a contact using the contact crimped and terminal-processed coaxial cable of FIG. 7B.

Referring to FIG. 9 (a), when an intermediate product inspection is performed on the terminated coaxial cable 10 having the defective core wire 1a, the inner cover 2 of the terminated terminal coaxial cable at the time of driving is inspected. Plate 1 for shield and shield wire 3
At the time of contact between the electrode plates 15 and 5, if the middle portion of the defective core wire 1 a contacts the electrode plate 15, the tip is released and the electrode plate 15 is not in contact with the shield wire 3.
16 shows a state in which conduction does not occur, and in such a case, failure detection cannot be performed properly. The terminal-processed coaxial cable 10 having such a defective core wire 1a is determined to be OK in the intermediate product inspection by the conventional inspection device, and is shifted to the subsequent contact crimping in the process procedure.

Therefore, referring to FIG. 9B, here, the terminated coaxial cable 10 having the defective core wire 1a is used.
When the contact crimping is performed on the core wire 1 and the inner sheath portion 2 while the contact 8 is crimped, and when the shield portion 7 is covered on the outer sheath portion 4 and the exposed portion of the shielded wire 3 is covered with the shield cap 7, The state in which the tip of the defective core wire 1a can come into contact with the shield cap 7 while being released is shown. The terminal crimped coaxial cable 10 having the defective core wire 1a having the contact crimped thereon is transferred to the subsequent contact assembly in the process procedure.

Referring to FIG. 9 (c), when the connector is assembled with respect to the contact-bonded and terminated coaxial cable 10 having the defective core wire 1a, the insulator 9 is fitted to the contact 8 and the shield cap 7. In addition, when the contact 8 and the shield cap 7 are covered with the insulator 9, a state is shown in which the tip of the defective core wire 1 a that has been separated can move and come into contact with the shield cap 7. The connector in such a state is short-circuited out (withstand voltage out), and its basic function is remarkably deteriorated, so that the finished product is defective.

Therefore, the inspection apparatus using the conventional inspection jig has a defect in the inspection performance, and there is room for reconsidering the basic configuration and performance of the inspection jig.

The present invention has been made in order to solve such problems, and the technical problem is that inspection can be performed simply, accurately and accurately regardless of the state of a defective wire of a coaxial cable with a processed terminal. An object of the present invention is to provide a terminal-processed coaxial cable inspection jig that can be performed.

[0021]

According to the present invention, there is provided a uniaxially extending coaxial cable which is provided with a shielded wire provided on the entire circumference of an inner jacket covered with a core wire so as to be covered by an outer jacket. The inner cover portion and the outer cover portion are cut off by terminal processing, and the length of the exposed portion in the uniaxial direction of the inner cover portion defined by the distance between the exposed portion of the shielded wire and the exposed portion of the core wire is reduced. In a terminal-processed coaxial cable inspection jig for inspecting the finished condition of the terminal-processed coaxial cable formed so as to have a predetermined interval, the interval in the uniaxial direction is opposed to each other at an interval smaller than the predetermined interval. An inspection jig for a terminal-processed coaxial cable which is arranged and includes a pair of conductive plates capable of detecting the presence or absence of conduction by sandwiching the inner cover portion on both sides in a direction perpendicular to the uniaxial direction is obtained.

Further, according to the present invention, in the inspection jig for a terminated coaxial cable, the pair of conductive plates are separated from each other by a first interval in which the interval in the uniaxial direction is smaller than a predetermined interval. A pair of electrode plates, which are arranged to face each other and form a first set to which a detection voltage is applied, and which face each other with a second interval whose uniaxial interval is smaller than the first interval; And a pair of electrode plates forming a second set, the outer walls of which are in contact with the inner walls of the pair of electrode plates forming the first set in a direction perpendicular to the uniaxial direction. And a pair of electrode plates forming a second set, each of which has a notch having a shape capable of sandwiching the inner cover part on both sides in a direction perpendicular to the uniaxial direction. A processed coaxial cable inspection jig is obtained.

Further, according to the present invention, in the inspection jig for a terminated coaxial cable, the cutout portion is formed in a semicircular shape in such a manner that a portion to be brought into contact with the inner jacket portion conforms to the shape of the inner jacket portion. An inspection jig for a coaxial cable having a processed terminal is obtained.

In addition, according to the present invention, there is provided an inspection apparatus using any one of the above-described inspection jigs for a coaxial cable having a terminal processed, wherein a second pair of electrode plates forming a first set is subjected to a second
An inspection table provided with a positioning guide for positioning and moving a pair of electrode plates forming a pair in a direction perpendicular to the uniaxial direction, and a pair of electrode plates forming a second group provided on the inspection table An air cylinder for moving the air cylinder in a direction perpendicular to the one axis direction in accordance with the guide of the positioning guide, a driving operation section for driving the air cylinder, and Detection of a state in which the pair of electrode plates forming the first set and the pair of electrode plates forming the second set are in contact with the inner cover due to the movement of the pair of electrode plates forming the second set during driving. And a detection sensor that outputs a detection signal, and applies a detection voltage to a pair of electrode plates forming a first set, and outputs a detection signal within a first interval range and a second interval range according to the detection signal. Result of detecting the presence or absence of continuity Inspection apparatus having a display device and to be displayed as a result of inspecting the quality of a terminal machined coaxial cable is obtained.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An inspection jig for a finished coaxial cable according to the present invention will be described in detail with reference to the drawings.

First, a brief description will be given of an outline of the configuration of the inspection jig for a finished coaxial cable according to the present invention. This terminal-processed coaxial cable inspection jig is also arranged in the same direction as the conventional inspection jig, by disposing a silled wire over the entire circumference of the inner jacket covering the core wire so as to be covered with the outer jacket. The coaxial cable extending to the end is cut off the inner sheath and outer sheath by terminal processing, and the length of the exposed portion in the uniaxial direction of the inner sheath defined by the distance between the exposed portion of the shielded wire and the exposed portion of the core wire is reduced. It is for inspecting the finished condition of the terminal-processed coaxial cable formed so as to have a predetermined interval, but here, the intervals in the uniaxial direction are arranged facing each other at intervals smaller than the predetermined interval, It comprises a pair of conductive plates capable of detecting the presence or absence of conduction by sandwiching the inner cover portion on both sides in a direction perpendicular to the uniaxial direction.

If an inspection device is configured to apply a detection voltage by using such a pair of conductive plates as an electrode plate and the finished coaxial cable is inspected as an intermediate product, the pair of conductive plates are finished on both sides. Since the inspection can be performed in a state where the inner sheath of the coaxial cable is sandwiched, it is possible to have the defective shield wire 3a as shown in FIG. 6 or the defective core wire 1a as shown in FIG. The tip is shielded wire 3
Therefore, even when the conductive plates are in a non-contact state and are separated from each other, the conductive plates are electrically connected to each other, so that defect detection can be accurately performed with high probability.

FIG. 1 is an external perspective view showing the configuration of a main part of an inspection jig for a finished coaxial cable according to an embodiment of the present invention. In this inspection jig, as the pair of conductive plates described above, each of the pair of conductive plates has a first interval smaller than a predetermined interval (the length of the exposed portion in the one axis direction of the inner cover 2). A pair of electrode plates 5a and 6a that are arranged to face each other and form a first set to which a detection voltage is applied.
And a pair of electrode plates that are arranged to face each other with a second interval whose uniaxial interval is smaller than the first interval, and form a first set in a direction perpendicular to the uniaxial direction. The second wall 5a, 6a is contacted with the outer wall entering the inner wall.
And a pair of electrode plates 5a and 6b forming a first pair and a pair of electrode plates 5b and 6b forming a second pair are respectively in the uniaxial direction. It has a notch having a shape capable of sandwiching the inner cover 2 on both sides in a vertical direction. These cutouts have a semicircular portion in contact with the inner cover 2 in accordance with the shape of the inner cover 2.

A detection voltage is applied to the electrode plates 5a, 6a here, and the electrode plates 5b, 6b are moved so that the outer walls of the electrode plates 5b, 6b enter the inner walls of the electrode plates 5a, 6a and come into contact therewith. The configuration (that is, in terms of the operation principle, as shown by the arrow in FIG. 1, it can be regarded as a form in which the electrode plates 5 a, 6 a and the electrode plates 5 b, 6 b move in the direction of relatively approaching to each other. Inspection of the finished coaxial cable 10 by the inspection device described in (1) above results in electrode plates 5a, 6
a and the outer walls of the electrode plates 5b and 6b contact each other,
In addition, the inner cover 2 of the terminal-processed coaxial cable 10 is guided by the cutouts of the electrode plates 5a and 6a and the electrode plates 5b and 6b, and the inner cover 2 is held in contact with the semicircular portion of the cutout. Since the inspection is performed in the state (that is, the form in which the thickness of the electrode plate of the bipolar portion is increased), the inspection is performed simply, accurately, and accurately regardless of the state of the defective wire of the coaxial cable 10 having the terminal processed. be able to.

FIG. 2 is a side view showing an intermediate product inspection for the terminal-processed coaxial cable 10 when the inspection device is simply constructed using the inspection jig shown in FIG. (A) is a non-defective finished coaxial cable 1
FIG. 2B shows a coaxial cable 1 having a defective core having a defective core wire 1a and having a processed terminal.
It relates to the time of inspection for 0.

FIG. 2 (a) shows that if the finished coaxial cable 10 is a non-defective product having no defective wire, no electrical connection is made between the electrode plates 5a and 6a and between the electrode plates 5b and 6b during the inspection of the intermediate product, and The state where the lamps connected to the plates 5a and 6a are not turned on is shown.

On the other hand, FIG. 2 (b) shows that the terminated coaxial cable 10 is a defective product having the defective core wire 1a, so that the intermediate product inspection is performed between the electrode plates 5a and 6a and between the electrode plates 5b and 6b. Indicate that the lamps connected to the electrode plates 5a and 6a are turned on.

FIG. 3 is a top view showing a basic configuration of an inspection apparatus constituted by using the inspection jig shown in FIG. or,
FIG. 4 is an external perspective view showing an essential part of the inspection apparatus shown in FIG.

Here, an example is shown in which an inspection apparatus is configured using the inspection jig having the above-described configuration. In other words, the inspection apparatus is configured such that the electrode plates 5a and 6a fixed and opposed to each other via the non-conductive spacer are similarly fixed to each other via the non-conductive spacer. ,
An inspection table 30 provided with a positioning guide 18 for positioning and moving 6b in a direction perpendicular to the one axis direction;
An air cylinder 33 provided on the inspection table 30 for moving the electrode plates 5b, 6b by air pressure in a direction perpendicular to one axial direction according to the guidance of the positioning guide 18;
And a foot switch 19 as a drive operation unit for driving and operating the electrode plate 5b and 6b while the air cylinder 33 is driven. And a positioning sensor 17 for detecting a state in which the electrode plates 5a and 6a and the electrode plates 5b and 6b are in contact with each other and outputting a detection signal; applying a detection voltage to the electrode plates 5a and 6a; A display device 35 for displaying the result of detecting the presence or absence of continuity in the first interval range and the second interval range as a result of inspecting the quality of the coaxial cable 10 with the terminal processed.
Further, lead wires 11 and 1 are connected to the electrode plates 5a and 6a, respectively.
2 is connected to the display device 35 via the positioning sensor 1.
7 and the display device 35 are connected by a lead wire 13, and the air cylinder 33 and the foot switch 19 are connected by a lead wire 14.

In the display device 35, a display lamp 35a such as an LED for displaying OK in response to a detection signal from the positioning sensor 17 at the time of inspection of an intermediate product and an NG lamp.
And a power supply unit for supplying power to the display lamps 35a and 35b and applying a detection voltage to the lead wires 11 and 12.

In this inspection apparatus, when performing an intermediate product inspection of the coaxial cable 10 having the terminal processed, the coaxial cable 10 having the terminal processed is connected to the electrode plates 5a, 6a and the electrode plates 5b, 6a.
The air cylinder 33 is driven by disposing it near the electrode plates 5a, 6a between the air cylinder 33 and the foot switch 19 to depress the foot switch 19 to turn it on.

When the air cylinder 33 is driven, the electrode plates 5b, 6b are guided by the positioning guide 18 toward the electrode plates 5a, 6a by air pressure, and move.
When the outer walls of b and 6b enter the inner walls of the electrode plates 5a and 6a and come into contact therewith, and the edge wall of the cutout comes into contact with the inner cover 2 and eventually reaches a semicircular portion, the inner cover 2 is removed. It will be in the state of being pinched and held on both sides. The holding state at this time is a testable state, and the state is detected by the positioning sensor 17, and a detection signal from the positioning sensor 17 is transmitted to the display device 35 through the lead wire 13.

Here, the terminal-processed coaxial cable 10
In the state where the edge walls of the cutout portions of the electrode plates 5a and 6a and the edge walls of the cutout portions of the electrode plates 5b and 6b overlap each other at two separated places of the inner cover portion 2, and the plate thickness is increased. Coaxial cable 1 with processed terminal to be in contact
If there is a defective siled wire 3a or a defective core wire 1a at 0, conduction between the electrode plates 5a and 6a and between the electrode plates 5b and 6b is stably conducted, and the display device 35 detects this state according to the detection signal.
Turns on the indicator lamp 35b indicating NG, but if there is no defective shielded wire 3a or defective core wire 1a in the coaxial cable 10 having been processed, the terminal plates 5a, 6a and the electrode plates 5b, 6b
The display device 35 that has detected this state according to the detection signal turns on the display lamp 35a indicating OK.

In this way, the quality of the finished coaxial cable 10 can be easily and accurately determined regardless of the state of the defective wire of the finished coaxial cable 10 whether the coaxial cable 10 is good or defective. Can be inspected well.

[0040]

As described above, according to the inspection jig for a terminated coaxial cable of the present invention, the distance in the one axial direction in which the terminated coaxial cable extends is longer than the length of the exposed portion of the inner jacket. A pair of conductive plates that are arranged opposite to each other at a smaller interval than a predetermined interval and that can detect the presence or absence of conduction by sandwiching the inner cover portion on both sides in a direction perpendicular to the uniaxial direction. Specifically, as a pair of conductive plates, a configuration is adopted in which the plate thickness is increased while entering and overlapping each other, sandwiching and holding the separated two places of the inner jacket portion of the terminal-processed coaxial cable. Since one pair and two pairs of electrode plates are used, it is possible to obtain extremely stable conduction between the electrodes, and as a result, stably and accurately regardless of the state of the defective wire of the terminal-processed coaxial cable. simply It is possible to every well test. Further, in the inspection apparatus using the inspection jig using the pair of two electrode plates, the configuration can be such that only one of the pair of electrode plates is moved with respect to the other, and additional components are provided. Can be simplified, and a highly reliable apparatus with improved inspection accuracy of defective products as compared with the conventional inspection apparatus can be provided in a small scale and at low cost.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a configuration of a main part of an inspection jig for a finished coaxial cable according to an embodiment of the present invention.

FIG. 2 is a side view showing an intermediate product inspection of the terminal-processed coaxial cable when the inspection apparatus is simply configured using the terminal-processed coaxial cable inspection jig shown in FIG. a) relates to the inspection at the time of the inspection of a good-quality terminal-processed coaxial cable, and (b) relates to the inspection at the time of the defective terminal-processed coaxial cable having a defective core wire.

FIG. 3 is a top view showing a basic configuration of an inspection apparatus configured by using the terminal-processed coaxial cable inspection jig shown in FIG. 1;

FIG. 4 is an external perspective view showing an essential part of the inspection apparatus shown in FIG.

FIG. 5 is a flowchart showing a process procedure when a conventional coaxial cable is processed and assembled as a connector.

FIG. 6 is a side view showing one embodiment of a coaxial cable with a processed terminal which has become defective after the processing of the cable terminal in the process procedure shown in FIG. 5;

FIG. 7 is a side view showing another embodiment of a coaxial cable with a processed terminal which has become defective after the processing of the cable terminal in the process procedure shown in FIG. 5;

FIG. 8 is a top view showing, in partial cross section, a basic configuration of an inspection apparatus to which a conventional terminal-processed coaxial cable inspection jig is applied.

FIG. 9 is a problem when assembling as a connector a terminal-processed coaxial cable having a defective core wire shown in FIG. 7 which cannot be accurately determined as a defective product by the inspection by the inspection device shown in FIG. 8; (A) is a side view showing, in a simplified form, a partial cross section of an inspection of an intermediate product in a terminal-processed coaxial cable having a defective core wire, and (b) of FIG. Fig. 3C is a side view showing a state of contact crimping using a terminal-processed coaxial cable having a defective core wire, and Fig. 3C shows a state of contact assembly using the terminal crimped terminal-processed coaxial cable of Fig. 3B. It relates to a side view.

[Explanation of symbols]

 Reference Signs List 1 core wire 1a defective core wire 2 inner sheath 3 shielded wire 3a defective shielded wire 4 outer sheath 5a, 5b, 6a, 6b, 15, 16 electrode plate 7 shield cap 8 contact 9 insulator 10 terminal-processed coaxial cable 11, 12, 13, 14 Lead wire 17 Positioning sensor 18 Positioning guide 19 Foot switch 20, 30 Inspection table 21a, 21b Fixed table 22 Spring 23a, 23b, 33 Air cylinder 24a, 24b Switch 25, 35 Display device 25a, 25b, 35a, 35b Display lamp

Claims (4)

[Claims] 1. A uniaxially extending coaxial cable, which is provided with a shielded wire so as to be covered with an outer jacket over the entire circumference of an inner jacket covered with a core wire, is subjected to terminal processing to form the inner jacket and the outer jacket. A terminal in which the cover is cut off and the length of the exposed portion in the uniaxial direction of the inner cover defined by the distance between the exposed portion of the shielded wire and the exposed portion of the core wire is a predetermined interval. In the terminal-processed coaxial cable inspection jig for inspecting the finished condition of the processed coaxial cable, the interval in the one axial direction is arranged to face each other at an interval smaller than the predetermined interval, and A terminal-processed coaxial cable inspection jig, comprising a pair of conductive plates capable of detecting the presence or absence of conduction by sandwiching the inner cover portion on both sides in a direction perpendicular to the terminal. 2. The test jig for a terminated coaxial cable according to claim 1, wherein the pair of conductive plates have a first interval in which the interval in the uniaxial direction is smaller than the predetermined interval. A pair of electrode plates, which are arranged to face each other and form a first set to which a detection voltage is applied, and a second interval in which the interval in the uniaxial direction is smaller than the first interval; A pair of electrode plates forming a second pair are disposed so as to face each other, and an outer wall enters and contacts an inner wall of the pair of electrode plates forming the first pair in a direction perpendicular to the uniaxial direction. The pair of electrode plates forming the first set and the pair of electrode plates forming the second set can sandwich the inner cover on both sides in a direction perpendicular to the uniaxial direction. End processed, characterized by having a notch of shape Inspection jig for coaxial cable. 3. The inspection jig for a finished coaxial cable according to claim 2, wherein the cutout portion is formed in a semicircular shape so that a portion that is in contact with the inner cover portion matches the shape of the inner cover portion. Inspection jig for coaxial cable with finished terminal. 4. An inspection apparatus using the inspection jig for a terminated coaxial cable according to claim 2 or 3, wherein the second set is provided for a pair of electrode plates forming the first set. An inspection table provided with a positioning guide for positioning and moving the pair of electrode plates in a direction perpendicular to the uniaxial direction, and a pair of electrodes provided on the inspection table to form the second set An air cylinder that moves the plate by air pressure in a direction perpendicular to the one axis direction according to the guide of the positioning guide, a drive operation unit for driving the air cylinder, and a plate disposed near the positioning guide on the inspection table. In addition, the pair of electrode plates forming the first set and the second set forming the first set are formed on the inner cover by movement of the pair of electrode plates forming the second set when the air cylinder is driven. A pair of electrode plates touch A position sensor that detects the state of the detection and outputs a detection signal, and applies a detection voltage to the pair of electrode plates forming the first set, and according to the detection signal, within the first interval range and A display device for displaying a result of detecting the presence or absence of continuity within the second interval range as a result of inspecting the quality of the coaxial cable with a processed terminal.