JPH09115642A - Electric wire insertion method and insertion device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To securely insert a terminal into a connector housing and check whether or not the terminal is completely inserted into the connector housing. SOLUTION: A connection terminal 21 crimped to the end of an electric wire 22 is sandwiched by a temporary insertion jig 23, the electric wire 22 is held by a main insertion jig 11 having a cylindrical pressing element 12, and the terminal 21 is attached to a connector housing 25. Temporary insertion is performed, then the temporary insertion jig 23 is removed from the terminal 21, and the rear end portion of the terminal 21 is directly pushed by the tubular pressing element 12 to be fully inserted in the connector housing. Since the terminal 21 is directly pushed in, the main insertion jig 11
It is possible to determine whether or not the terminal 21 is properly inserted by measuring the amount of movement of the terminal 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an insertion device for inserting a terminal crimped onto the tip of an electric wire into a connector housing, and a method for confirming the properness of the insertion.

[0002]

2. Description of the Related Art Conventionally, a method of inserting a terminal crimped onto the end of an electric wire into a connector housing is shown in FIG.
As shown in FIG. 2, a method is known in which the electric wire is clamped and inserted into the connector housing. That is, first, the terminal 1 crimped to the tip of the electric wire 2 is clamped by the temporary insertion jig 4, and the electric wire 2 is clamped by the main insertion jig 3. Then, FIG.
As shown in (b), the temporary insertion jig 4 is removed at the stage of temporary insertion in which the tip portion of the terminal 1 is inserted into the connector housing 5. Then, the terminal 1 is fully inserted into the connector housing 5 by the main insertion jig 3.

[0003]

However, in the case of the above method, when the terminal 1 is temporarily inserted and then the main insertion jig 3 is finally inserted, the terminal 1 is caught in the connector housing. As shown in FIG. 5 (c), there may be a waist-folded portion 7 that is bent in a U-shape between the terminal 1 and the electric wire portion sandwiched by the main insertion jig 3. In such a case, the terminal 1 is not completely inserted into the connector housing 5. In particular, this bending of the waist is remarkable when the electric wire is thin.

A method is also known in which the main insertion jig 3 holds the electric wire 2 near the rear end portion 6 of the terminal 1 in order to prevent the waist bent portion 7 from being generated. In this case, the connector housing 5
The terminal 1 can be completely inserted if the terminal insertion part of the terminal is on the inlet side of the connector housing 5, but if the terminal 1 insertion part is at the back of the connector housing 5, the terminal 1 is completely inserted. Cannot be inserted.

Further, if the terminal 1 is not completely inserted into the connector housing 5, connection failure will occur. Therefore, it is necessary to check whether or not the electric wire with a terminal inserted by the above method is completely inserted into the connector housing 5. A worker was pulling and checking the electric wire with the terminal by hand.

Therefore, the first object of the present invention is to securely insert the terminal into the connector housing.
A second object is to make it possible to confirm whether or not the terminal is completely inserted into the connector housing.

[0007]

In order to solve the above-mentioned first problem, the invention according to claims 1 to 6 has been made, and the invention according to claim 1 is connected to an end of an electric wire 22. The terminal 21 is attached, the connection terminal 21 is sandwiched by the temporary insertion jig 23, the connection terminal 21 is temporarily inserted into the connector housing 25, and then the connection terminal 21 is inserted by the main insertion jig.
Is a method of inserting the connection terminal 21 into the connector housing 25, which is for main insertion into the connector housing 25 by pressing the connection terminal 21 directly with a main insertion jig during the main insertion. is there.

The invention according to claim 2 is the method for inserting an electric wire according to claim 1, wherein the rear end portion 2 of the connection terminal 21 is
6 is directly pushed by the main insertion jig.

According to a third aspect of the present invention, in the method of inserting an electric wire according to the first aspect, a protrusion 27 is formed on a side surface of the connection terminal 21, and the protrusion is directly pushed by the main insertion jig. I did.

In the invention according to claim 4, the connection terminal 21 is attached to the end of the electric wire 22, the connection terminal 21 is sandwiched by the temporary insertion jig 23, and the connection terminal 21 is temporarily inserted into the connector housing 25. Next, there is provided an electric wire insertion device for inserting the connection terminal 21 into the connector housing by inserting the connection terminal 21 into the connector housing by pushing the connection terminal 21 with the main insertion jig. A pusher extending toward the connection terminal 21 is provided, the tip of the pusher is directly contacted with the connection terminal 21, and the connection terminal is finally inserted.

According to a fifth aspect of the present invention, in the electric wire insertion device according to the fourth aspect, a structure is adopted in which the pressing element has a tubular shape that wraps the electric wire 22.

According to a sixth aspect of the present invention, in the electric wire insertion device according to the fourth or fifth aspect, a projection 27 is provided on the side surface of the connection terminal, and the projection 27 is pushed by the pressing element. I did.

According to these inventions, the terminal with the electric wire is pushed into the connector housing by directly pressing the terminal without sandwiching the electric wire portion of the terminal with the electric wire. Therefore, the waist folding portion bent into a U shape on the electric wire portion. Can prevent the occurrence of
The terminal with electric wire can be reliably pushed into the connector housing. In addition, by using a tubular jig as the main insertion jig, the electric wire can be securely held and the terminal can be surely pushed.

In order to solve the second problem in addition to the above-mentioned first problem, the inventions of claims 7 and 8 are made, and the invention according to claim 7 is any one of claims 1 to 3. The connection terminal 2 according to the method of inserting an electric wire described in
When 1 is fully inserted in the connector housing 25, a method of detecting the amount of movement of the main insertion jig to judge the properness of the insertion is adopted.

According to an eighth aspect of the present invention, in the wire insertion device according to any one of the fourth to sixth aspects, when the connection terminal 21 is fully inserted into the connector housing 25, the main insertion treatment is performed. The sensor 31 for detecting the amount of movement of the pressing element of the tool is provided.

According to these inventions, the movement amount of the insertion jig matches the movement amount of the terminal. Therefore, by measuring the movement amount, it is determined whether or not the terminal with electric wire is completely inserted into the connector housing. Can be measured.

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As the main insertion jig used in the present invention, the main insertion jigs 11 and 16 as shown in FIG. 1 or 2 are used.
Is raised. Each of the main insertion jigs is provided with a presser on its side surface, and the presser directly presses the terminal crimped to the tip of the electric wire to perform the main insertion of the terminal.

As shown in FIG. 1, the main insertion jig 11 has a cylindrical presser 12 as a presser on its side surface, and is held by a main insertion jig holder 11 '. This book insertion jig 1
1 is separated into left and right by a separating portion 13, and the electric wire is tubular presser 1
Can be passed through 2. The wire is this main insertion jig 11
It is not sandwiched by and is wrapped and held by the cylindrical pressing element 12. Therefore, the electric wire held by the main insertion jig 11 is movable back and forth. Further, a sensor 31 is provided at the upper end of the main insertion jig 11, and the main insertion jig 1 of the sensor 31 and the main insertion jig holding portion 11 ′ is provided.
The insertion distance of the terminal is measured by measuring the change in the distance from the surface 11 ″ on the first side.

As shown in FIG. 2, the main insertion jig 16 has a rod-shaped pusher 17 on its side surface as a pusher.
It is held by the main insertion jig holding portion 16 '. A sensor 31 is provided at the upper end of the main insertion jig 16, and the change in the distance between the sensor 31 and the surface 16 ″ of the main insertion jig holding portion 16 ′ on the main insertion jig 16 side. Measure the insertion distance of the terminal by measuring.

Insertion of the connector housing of the terminal with electric wire using the above-mentioned terminal pushing device is carried out as follows.

In the first embodiment, as shown in FIG.
The main insertion jig 16 having a rod-shaped pusher 17 is used as the pusher. Further, the terminal 21 used here is provided with a protrusion 27 on a part thereof.

First, as shown in FIG. 3A, the terminal 21 is clamped by the temporary insertion jig 23 and temporarily inserted into the connector housing 25. Next, after removing the temporary insertion jig 23 from the terminal 21, the main insertion jig 16 is arranged as shown in FIG. That is, the main insertion jig 16 is arranged at a position where the projection 27 provided on the terminal 21 can be pushed in by the tip of the rod-shaped pusher 17 on the side surface thereof.

The main insertion jig 16 arranged at the predetermined position
As shown in FIG. 3C, the protrusion 27 of the terminal 21 is pushed by the rod-shaped pusher 17 by moving the
Is completely inserted into the connector housing 25.

In the second embodiment, as shown in FIG.
The main insertion jig 11 having a cylindrical pressing element 12 is used as the pressing element.

First, as shown in FIG. 4A, the terminal 21 is sandwiched by the temporary insertion jig 23, and the electric wire 22 is inserted by the main insertion jig 11.
Hold. The holding of the electric wire 22 by the main insertion jig 11 does not need to be held from the beginning, and may be performed any time before the temporary insertion jig 23 of FIG. 4B is removed from the terminal 21. When the main insertion jig 11 is held by the electric wire 22, the tubular pressing element 12 is held in the direction of the terminal 21.

The terminal 21 held by the temporary insertion jig 23 is
As shown in FIG. 4B, the tip of the terminal 21 is inserted into the connector housing 25, so-called temporary insertion, and the temporary insertion jig 23 is removed from the terminal 21.

After the temporary insertion jig 23 is removed, the tip of the cylindrical pressing element 12 of the main insertion jig 11 is pressed against the terminal 21 so that the terminal 21 is completely inserted into the connector housing 25. To do. The portion of the terminal 21 against which the tubular pressing element 12 is pressed includes the terminal 2 shown in FIG.
It may be a specially provided protrusion 27 such as No. 1 or the rear end portion 26 of the terminal 21 itself. Also,
When crimping the terminal 21 to the tip of the electric wire 22, the rear end 2
When a resin barrel is provided in 6, the above resin barrel may be used. The rear end portion 26 of the terminal 21 is connected to the cylindrical presser 12
The inner diameter of the cylindrical pressing element 12 is larger than the outer diameter of the electric wire 22 by about 0.3 mm, and the terminal 21 is pressed.
The rear end portion 26 is possible because it is formed larger than the outer diameter of the electric wire 22.

In both the first embodiment and the second embodiment, the amount of movement of the main insertion jig is measured by the sensor 31 attached to the upper end of the main insertion jig. That is, in the first embodiment, after temporary insertion, as shown in FIG.
As shown in (b), the main insertion jig 16 is arranged so that the tip of the rod-shaped pressing element 17 contacts the protrusion 27 of the terminal 21. Then, the position of the main insertion jig holding portion 16 ′ is fixed, and only the main insertion jig 16 is moved to move the terminal 21.
Is inserted. At this time, with the sensor 31 attached to the upper end of the main insertion jig 16, the main insertion jig holding portion 16 '
The amount of movement of the main insertion jig 16 in the main insertion is measured by measuring the change in the distance from the surface 16 ″ on the main insertion jig 16 side. Since the terminal 21 is directly pressed by the rod-shaped pusher 17 of the main insertion jig 16, the movement amount of the main insertion jig 16 becomes the movement amount of the terminal 21 as it is, and it is determined whether the insertion amount of the terminal 21 into the connector housing is appropriate. Is judged.

Further, in the second embodiment, when the temporary insertion is performed, as shown in FIG.
1 is a rear end portion 2 of a terminal 21 in which the tip of the cylindrical pressing element 12 is
It is arranged so as to contact with 6. In this state, the terminal 21 is fully inserted by fixing the position of the main insertion jig holding portion 11 ′ and moving only the main insertion jig 11. At this time, the sensor 3 attached to the upper end of the main insertion jig 11
In 1, the amount of movement of the main insertion jig 11 in the main insertion is measured by measuring the change in the distance between the main insertion jig holding portion 11 ′ and the surface 11 ″ on the main insertion jig 11 side. Since the terminal 21 is directly pressed by the cylindrical pressing element 12 of the main insertion jig 11,
The amount of movement of the main insertion jig 11 becomes the amount of movement of the terminal 21 as it is, and whether or not the terminal 21 is properly inserted into the connector housing is determined from this amount of movement.

[0031]

According to the present invention, since the terminal crimped to the tip of the electric wire is directly pushed and inserted into the connector housing, it is possible to prevent the occurrence of a U-shaped bent portion in the electric wire portion, which is reliable. The wire can be pushed into the connector housing.

Further, since the terminal is directly pushed in, it is possible to judge the suitability of the insertion by measuring the moving amount of the main insertion jig.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a terminal pushing device according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the terminal pushing device according to the present invention.

FIG. 3 (a) is an operation diagram showing a terminal before insertion according to the first embodiment; (b) is an operation diagram showing the terminal temporary insertion; and FIG. 3 (c) is an operation diagram showing the terminal main insertion.

FIG. 4 (a) is an operation diagram showing a second embodiment before inserting a terminal. (B) is an operation diagram showing the above-mentioned terminal temporary insertion. (C) is an operation diagram showing the above-mentioned terminal main insertion.

5A is an operation diagram showing a conventional terminal before insertion. FIG. 5B is an operation diagram showing the terminal temporary insertion. FIG. 5C is an operation diagram showing the terminal main insertion.

[Explanation of symbols]

 1 Terminal 2 Electric Wire 3 Insertion Jig 4 Temporary Insertion Jig 5 Connector Housing 6 Terminal Rear End 7 Terminal Folding Part 11 Main Insertion Jig 11 'Main Insertion Jig Holder 12 Cylindrical Presser 13 Separation 16 Insert Jig 16 'Main insertion jig holding part 17 Rod-shaped pusher 21 Terminal 22 Electric wire 23 Temporary insertion jig 25 Connector housing 26 Terminal rear end 27 Protrusion 31 Sensor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryosuke Shioda 1-7-10 Kikuzumi, Minami-ku, Aichi Prefecture, Nagoya, Haruna Research Institute Co., Ltd. (72) Inventor Yoshinobu Ota, Kikuzumi, Minami-ku, Aichi Prefecture 7-10, Harness Research Institute Co., Ltd.

Claims (8)

[Claims] 1. A connection terminal 21 is attached to an end of an electric wire 22, the connection terminal 21 is sandwiched by a temporary insertion jig 23, the connection terminal 21 is temporarily inserted into a connector housing 25, and then the main insertion jig is inserted. A method of inserting the connection terminal 21 into the connector housing 25 by pushing the connection terminal 21 into the connector housing 25 by means of a main insertion jig at the time of the main insertion.
A method of inserting an electric wire, characterized in that the button is pushed directly and pushed. 2. The method of inserting an electric wire according to claim 1, wherein the rear end portion 26 of the connection terminal 21 is directly pushed by the main insertion jig. 3. The method of inserting an electric wire according to claim 1, wherein a protrusion 27 is formed on a side surface of the connection terminal 21, and the protrusion is directly pushed by the main insertion jig. How to insert wires. 4. The connection terminal 21 is attached to an end of an electric wire 22, the connection terminal 21 is sandwiched by a temporary insertion jig 23, the connection terminal 21 is temporarily inserted into a connector housing 25, and then the main insertion jig is inserted. An electric wire insertion device for inserting the connection terminal 21 into the connector housing 25 by pushing the connection terminal 21 into the connector housing 25 by pressing the connection terminal 21 with the connection terminal 21 on the front surface of the main insertion jig. A pressing element extending toward the connection terminal 21 is provided, and the tip of the pressing element is directly applied to the connection terminal 21.
An electric wire insertion device, which is characterized by the main insertion. 5. The electric wire insertion device according to claim 4, wherein the pressing element has a tubular shape that wraps the electric wire. 6. The electric wire insertion device according to claim 4 or 5, wherein a protrusion 27 is provided on a side surface of the connection terminal, and the protrusion is pushed by the pressing member. 7. The moving amount of the main insertion jig is detected when the connection terminal 21 is fully inserted into the connector housing by the method of inserting an electric wire according to any one of claims 1 to 3. A method for detecting electric wire insertion, which comprises determining whether or not the insertion is appropriate. 8. The wire insertion device according to claim 4, wherein the pusher of the main insertion jig is moved when the connection terminal 21 is main inserted into the connector housing 25. An electric wire insertion detecting device, characterized in that a sensor 31 for detecting the amount is provided and whether the insertion is appropriate or not is judged by the sensor 31.