JPH01313872A - Insertion of terminal with electric wire into connector housing and device therefor - Google Patents

Abstract

PURPOSE:To immediately detect incomplete insertion and prevent the occurrence of a defective article by pulling an electric wire backward and applying the preset tension while holding it with an electric wire clamp plate after the insertion of a terminal. CONSTITUTION:When a head holder 59 is further advanced while an electric wire W1 is held by an electric wire clamp plate 56 and a terminal 48 is inserted into a terminal storage chamber 73, the terminal 48 is coupled with a hooking arm 74 and hooked. A fitting head 58 is swung in the arrow direction (back swing), the preset tension is applied to the electric wire W1, thus the existence of incomplete insertion is judged. The electric wire clamp 56, i.e., the head holder 59, may be retreated in place of the swinging. Insertion into a connector housing can be performed regardless of the type of the terminal, the incomplete insertion of the terminal is checked, and the occurrence of a defective article can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for automatically inserting a terminal with a wire into a connector housing.

Traditionally, the method of inserting a terminal with a wire into a connector housing is to position a trumpet-shaped terminal insertion guide facing the terminal accommodating chamber of the housing, and use a terminal clamping jig that matches the shape of the terminal to insert the terminal into the connector housing. There is a method of automatically inserting the terminal through the guide.

However, since there are so many types of terminals and their shapes vary, it is necessary to prepare guides and gripping tools of the same type as the terminal shape, which increases the size and configuration of the machine and increases the operational steps. In many cases, the disadvantage was that the production takt time was long.

In particular, housings with a large number of pins require the insertion of many types of terminals, making automation difficult.
Although this often involves manual labor, incorrect wiring or incomplete insertion due to incorrect insertion is likely to occur, which poses a major problem in the connector assembly process.

As a result of repeated studies to solve this problem, the present inventors discovered that the terminal is composed of an electrical contact part with the other terminal and a wire crimping part, and the shape of the terminal is Focusing on the fact that there is no big difference in the dimensions of the wire crimping part even if the wire size and size change,
The present invention has now been completed.

In other words, an object of the present invention is to eliminate the need for auxiliary jigs such as terminal insertion guides, to be able to be applied universally regardless of the type of terminal, and to check for incomplete insertion to prevent the occurrence of defective products. The object of the present invention is to provide a method and apparatus for preventing the insertion of electrical wires into terminals into connector housings.

In order to achieve the above-mentioned problem, the method of the present invention includes mounting a mounting head movable toward and away from the movable plate and moving up and down, and terminal gripping claws and terminal gripping claws provided on the mounting head so as to move up and down, respectively. After the wire gripping claw and the wire clamp plate grip the wire and the wire crimping portion of the terminal with wire which are held in parallel by the wire clamps arranged in parallel on the wire clamp pole, the mounting head is brought close to the connector housing; When the electrical contact portion of the terminal is inserted into the terminal accommodating chamber of the connector housing, the terminal gripping pawl and wire gripping pawl open and raise both gripping pawls, and then the wire clamp plate holding the wire is moved to the connector. The terminal with wire is brought close to the housing and locked in the terminal housing chamber, and after the locking is completed, the wire clamp plate is moved away from the connector housing to apply a predetermined tension to the terminal with wire to determine whether the locked state is good or not. It is characterized by

In the present invention, in order to move the wire clamp plate away from the connector housing, the mounting head is moved backward relative to the movable plate, or the mounting head is attached to the movable plate via the head holder, and the mounting head is pivoted to the head holder. You may use any method of supporting the ball and backswinging (swinging) it.

In addition, the device for carrying out the above method is provided with terminal gripping claws and wire gripping claws that can be opened and closed, respectively, at the lower end of the mounting head so as to be able to move up and down, and a wire clamp plate that can be opened and closed, and the mounting head is moved to a moving board. The moving plate is provided so as to be movable toward and away from the connector housing and to be able to be raised and lowered, and the movable plate is provided so as to be movable in parallel with respect to a set table on which a plurality of connector housings are arranged in parallel.

Saku-ri In the present invention, when inserting a terminal with a wire into the terminal housing chamber of the connector housing, the wire crimping portion of the terminal is gripped by the terminal gripping claw, so that it can be implemented universally even if the type of terminal changes, No auxiliary jig such as a terminal insertion guide is required.

After the terminal is inserted, the wire is held by the wire clamp plate and pulled backwards to apply a predetermined tension, so if the terminal is not fully inserted, the terminal will come out, and this will be immediately discovered and a defective product. This can be prevented from occurring.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings showing examples.

FIG. 1 shows a schematic layout of the entire automatic insertion device for a terminal with an electric wire into a connector housing, which includes the device of the present invention.

The automatic insertion process of terminals with electric wires includes the process of making a standard length electric wire, the process of stripping the standard length electric wire, the process of crimping the terminal to the electric wire (including composite crimping of two or more electric wires), and the process of fitting the terminal with electric wire into the case. Consists of etc.

Reference numerals 1 and 1' designate transport stands for the wire clamping rods 3 used in these various processes, and are equipped with an endless chain 2. From the left end of the conveyor table 1 in the figure, a fixed-length electric wire manufacturing device B that makes a fixed-length electric wire W from the long electric wire W of the reel station A,
Adjacent to this, an electric wire straightening device C1, an electric wire stripping device D, a plurality of terminal crimping devices E, E, . . . , and a case fitting device F are sequentially arranged. G is a control device that operates these various devices based on information programmed in advance. In addition, devices C, D and E, 'E2
. . . can use known devices.

The electric wire clamping rod 3, which is commonly used in various processes, is used to clamp a fixed-length electric wire W1 manufactured to a predetermined length into a U-shape at both ends thereof, as shown in FIGS. 2a and b. As shown in FIG. 2, the base portion 4b of the wire clamp 4, which is composed of a pair of opposing clamps 4a, 4a, is fitted in parallel to a support rod 5 having a gutter-like cross section. At the tip of the clamp 4a, a wire guiding inclined surface 4C1 is formed with a concave groove 4d on one side and a protrusion 4e on the other side, and has a structure that facilitates insertion of the wire and securely holds the wire. .

Reference numeral H in FIG. 1 indicates a stock station for empty wire clamping rods 3, and the wire clamping rods 3 are sequentially moved by a rod holder 7 provided at a predetermined pitch on a pair of endless chains 6. B is supplied.

This fixed-length electric wire manufacturing apparatus B mainly includes an electric wire U-turn turning head 8 and an enlarging head 9, and additionally includes an auxiliary electric wire temporary holding plate 10, a transfer head 11, and the like.

The electric wire U-turn turning head 8 bends the tip of the electric wire into a U-shape, and as shown in FIG.
It is provided with a pair of wire clamp plates 13 that can be opened and closed by rotating 180 degrees around the center, and a pair of wire cutting pieces 14 having a known structure. The wire clamp plate 13 is located in front of the rotary sleeve 15 of the bin 12, and has a cutout recess 13a for escape from the wire clamp 4. A mounting board 16 of the rotating sleeve 15 is screwed onto the tip of a piston rod 18a of a cylinder 18 fixed to a frame 17 of a column (not shown). Further, the wire cutting blade 14 is attached to a cutting blade mounting plate 19 that is vertically provided in front of the mounting board 16, and a bin 20 and its guide groove (
(not shown) so as to be vertically slidable, and its upper end is linked to the piston rod 21a of the cylinder 21. Therefore, the wire cutting blade 14 can be raised and lowered and opened and closed independently of the wire clamp plate 13. In addition,
The electric wire cutting blade 14 may be separated from the U-turn turning radius 8 and provided below the fixed length electric wire WI.

22 is a motor for stepwise rotation of the rotating sleeve 15.

The enlarging head 9 is used to produce a fixed-length electrical wire by stretching the electrical wire to a required length, and as shown in FIG. (not shown) and is provided with an electric wire hooking bin 24 that goes up and down. The mounting board 25 of the wire hooking pin 24 is attached to the head 9
The piston rod 26a of the cylinder 26 is screwed onto the lower end of the piston rod 26a fixed to the cylinder 26. Further, the enlarging head 9 is connected to a guide frame 2 disposed orthogonally to the conveyor table 1 as shown in FIG.
7 and is fixed to an endless chain 30 which is rotated by a length measuring motor 28 and a sprocket 29 attached to the frame 27, and is configured to be freely adhesive to the conveyor table 1.

The electric wire temporary holding plate 10 holds electric wires bent into a U-shape at a constant pitch, and has a wire arrangement plate 31 on the side edge on the reel station A side, and a wire arrangement plate 31 on the side edge on the stock station H side. It has a rod holder 32 for the wire clamp rod 3.

A plurality of trumpet-shaped wire feeding guide rings 33 are attached to the wire array plate 31 at a constant pitch.
An electric wire check roll 34 and an electric wire insertion tube 35 are installed in front of the
A pair of wire locking plates 36 are erected in a straight line and are erected in line with the insertion tube 35 .

The transfer head 11 transfers the electric wire whose tip end is bent into a U-shape on the electric wire temporary holding plate 10 to the electric wire clamp 4 of the electric wire clamp rod 3, and similarly to the U-turn turning head 8, it has a pair of openable and closable electric wires. A wire clamp plate 37 is provided.

The transfer head 11 is provided so as to be movable up and down by a cylinder 39 of the head holder, and also to be movable reciprocally by a cylinder 41 of a frame 40 installed across the wire temporary holding plate 10. That is, the wire clamp plate 37
can reciprocate and move up and down between the wire locking plate 36 and the wire clamp 4.

Further, a pair of wire fixing plates 42a are provided along with the U-turn turning head 8 so as to be able to open/close and move up and down with respect to the wire fixing head 42. This electric wire fixing plate 42 is for holding the bent end portion of the electric wire which is bent into a U-shape in the electric wire drawing process which will be described later (FIGS. 3d and 3e).

The wire stripping device cuts and removes the insulation coating at the end of the wire to expose the conductor of the length necessary for crimping the terminal, and a known device can be used together with the wire straightening device C. The explanation will be omitted.

The terminal crimping devices E+, Ez, etc. each crimp different types of terminals, and the configurations of the devices themselves are known, but as shown in Figures 5a and 5b, the base of each device is 43 is a lifting cylinder 44, a rod 45, and its guide tube 45a
It is installed so that it can be raised and lowered. 5a shows the device in the lowered position and the exposed conductor W portion of the wire WI is located between the open ram 46 and the press stand 47, while FIG. 5a shows the device in the raised position. , the conductor W is on the press table 47
Shows the status on the page. In the figure, 48 indicates a chain of terminals, and 49 indicates a terminal winding reel. Further, a composite head 50 used for composite crimping of electric wires is installed between the terminal crimping device E and the stripping device.

The composite head 50 is movable up and down, and has a wire clamp plate 5 which can be opened and closed and has the same structure as the wire clamp plate 13.37.
Has 1.

The case fitting device F includes a plurality of connector housings II.
, 1! , 13 .

As shown in FIG. 6a, the case fitting device F includes a pair of terminal gripping claws 54, wire gripping claws 55, and wire clamping plate 56, each of which is configured to be openable and closable. As shown in FIGS. 7a and 7b, the terminal gripping claws 54 and the wire gripping claws 55 are each formed into a piece shape having L-shaped protrusions 54a and 55a at their tips, and there is an upward and downward movement between the terminal grasping claws 54 and 54. A freely movable terminal holding plate 57 is provided. The terminal gripping claws 54 pinch the wire crimping portion 48a of the terminal 48 from both sides.

Reference numeral 58 denotes a mounting head for the claws 54 and 55 and the wire clamp plate 56, and the head holder 59 is slidable on the holder support plate 61 by two upper and lower parallel guide rods 0 and a screw rod (not shown). Mounted on the connector housing ■.

, I! It is provided so that it can freely approach and separate from...

The terminal gripping claws 54 and the wire gripping claws 55 are provided so as to be movable up and down by a cylinder (not shown) within the mounting head 58. 63 is a cylinder for raising and lowering the terminal holding plate 57. Further, the base plate 62 of the holder support plate 61 is screwed onto the lower end of a Vincento rod 65a of a cylinder 65 attached to a movable plate 64, and the movable plate 64 is attached to a pair of upper and lower guide rolls on a guide rail 66 of the support frame 53. 67, and is moved toward a desired connector housing (I+, Iz...) on the set table 52 by a step motor 68 and an endless chain 69 mounted on the support frame 53. do.

70 is a lock stand for each connector housing I, I2, . . . .

As described above, the terminal gripping claw 54, the wire gripping claw 55, and the wire clamp plate 56 move in parallel to the connector housings It, Iz, . . . together with the moving plate 64,
It moves up and down and comes and goes freely together with the holder support plate 61,
In addition, the terminal gripping claw 54 and the wire gripping claw 55 are attached to the mounting head 58.
The inner cylinder moves up and down independently of the wire clamp plate 56.

Further, in conjunction with the case fitting device F, a centering mechanism for inserting the terminal into the connector housing and a check mechanism after insertion are provided.

As shown in FIGS. 8a and 8b, the centering mechanism is constructed by locating a sensor 71 on the side of the electrical contact portion 48b of the terminal 48 with a mating terminal (not shown).

That is, the sensor 71 is attached to the mounting head 5 shown in FIG. 6a.
The terminal gripping claws 54 and the wire gripping claws 55 in 8 are attached obliquely in front of the terminal gripping claws 54 via a support arm (not shown) from the mounting board 58a, and the distance 2' between the sensor 71 and the terminal 48 and the preset distance l are Measure the error of

In addition, the terminal insertion check mechanism includes a mounting head 5 including terminal gripping claws 54, wire gripping claws 55, etc., as shown in FIG.
8 is attached to the head holder 59 via a support shaft 72 so as to be swingable in the direction of the arrow. Instead of the swinging motion, the head holder 59 may be moved backward by the guide rod 60 of the holder support plate 61. However, the terminal 48
As shown in Figure 0, the connector housing 1. In the case of a structure in which the terminal 48 is locked by a locking arm 74 in the terminal accommodating chamber 73, it is preferable to pull the terminal 48 upwardly by swinging.

Hereinafter, the steps from producing a fixed-length electric wire to fitting it into a case and the operation of each device will be explained.

[Production process of fixed length electric wire]

First, FIGS. 3a and 4a show that the tip of the long electric wire W pulled out from the reel station A (FIG. 1) is placed on the wire temporary holding plate 10 by the wire feeding guide ring 33.
The wire is stretched into a U-shape by the stretching head 9 through the wire check roll 34 and the wire insertion tube 35, and is cut by the wire cutting blade 14 of the U-turn turning head 8, with both ends adjacent to the wire clamping rod 3. It shows the state where it is held between two wire clamps 4 (hereinafter referred to as the "end point").
.

The length of the U-shaped wire W1 that has been stretched and cut is approximately 2, and its total length is approximately 2.

After cutting, the wire cutting blade 14 is raised by the operation of the cylinder 21 as shown in FIGS. The tip of the long electric wire W left behind is bent into a U-shape, and the bent end is pushed and held between the electric wire insertion tube 35 and a pair of adjacent electric wire locking plates 36. After clamping, the wire temporary holding plate 10 moves one pitch (distance between adjacent wire clamps 4 of the wire clamp rod 3) in the direction of the arrow in FIG.

In this way, by stretching and cutting the long electric wire W, a fixed length electric wire W is obtained.
After producing , the tip of the remaining long electric wire W is bent into a U-shape and prepared for the next step of producing a fixed length electric wire by sequentially drawing and cutting. In FIG. 1, a wire temporary holding plate 10 (see FIG. 4) indicated by a two-dot chain line holds a plurality of long wires W bent in a U-shape, such as a wire insertion tube 35 and a wire locking plate 36. (hereinafter referred to as the "starting point").

Figures 3C and 4C show the starting state of the wire drawing process. In this state, the transfer head 1 is moved by the operation of the cylinder 41.
1 moves onto the wire locking plate 36 as shown by the arrow, and the pair of wire clamp plates 37 descend to grip the U-shaped bent end of the long electric wire W and its opposing portion, and After rising and retreating, it is moved and clamped by the wire clamp 4 (FIG. 4d).

Next, as shown in FIGS. 3 d and 4 d, the wire fixing plate 42 a of the wire fixing head 42 is lowered to clamp and fix the U-shaped bent end to the wire clamp 4 . At the same time, the enlarging head 9 approaches the U-shaped bent portion by rotation of the length measuring motor 28 (FIG. 1). At this time, the wire hooking bin 24
is in the lowered position, the front sides of the upper and lower bin guide plates 23.23 are open, and the U-shaped bent portion enters between the plates 23.23. Therefore, the electric wire hooking bin 24 is attached to the cylinder 26.
is raised to close the open portion.

Next, as shown in FIGS. 3e and 4e, the enlarging head 9 is moved back by half (L) of the required wire length by the reverse operation. Then, the wire hooking bin 24 is lowered to release the engagement with the wire, and the wire fixing plate 42 is raised and returned to its original position.

Finally, as shown in FIG. 3r, the rotating U-turn head 8 is lowered by the actuation of the cylinder 18 to the side of the long electric wire W that has been U-turned, and after the electric wire is clamped by the electric wire clamp plate 13, the electric wire is cut. When cut by the blade 14, it returns to the "end point" as shown in FIG. 3a.

Next, a U-shaped bent portion is sequentially formed on the long electric wire W,
It is transferred to the position indicated by the two-dot chain line in FIG. 1 and clamped by the newly supplied wire clamping rod 3.

As a result, a desired fixed length electric wire Wl having a total length of about 2L is produced.

Hereinafter, by repeatedly repeating the "starting point" to "end point" of Figures 3a-f and 4a''-e, Figure 11a
As shown in FIG. 2, a primary intermediate product P1 of a wire harness is obtained in which both ends of a plurality of fixed length electric wires WI having the same or different lengths are clamped and fixed to the wire clamp 4 by the wire clamp rod 3.

In the above-mentioned manufacturing process of the fixed-length electric wire, the wire clamping rod 3 with the electric wire clamps 4 arranged in parallel is used as a clamping and fixing means for both ends of the fixed-length electric wire W1. It is possible to use an endless chain as disclosed in the above publication, in which electric wire grippers (consisting of a pair of grippers that can be opened and closed) are provided at a predetermined pitch. In addition, the process of folding the tip of the long electric wire W1 into a U-shape, the stretching process, the cutting process, and their processing positions are separated, and the wire holder at the U-shaped bending part is further omitted. It will be easily understood that the step of transferring from the holding plate 10 to the wire clamping rod 3 may be omitted.

[Wire stripping and straightening process]

The primary intermediate product P, as shown in FIGS. 1 and 11a, is sequentially conveyed one pitch at a time in the direction of the arrow on the conveyor table 1', and the wire straightening device C corrects the bends and curls at the ends of the wire. After the wire is removed, the wire is stripped using a wire stripping device.

[Terminal crimping process]

A plurality of terminal crimping devices E+, Ex... shown in FIG.
. . are in the lowered position with the ram 46 and press table 47 open, as described above (FIGS. 5a and 5b). Through this open space, the terminal portions of the plurality of fixed length electric wires W fixed to the clamp rod 3 are intermittently moved one pitch at a time. And each device E,,E.

. . . are each equipped with a chain of terminals 48 having different shapes and sizes.

Therefore, during the above-mentioned intermittent movement, desired terminals 48 can be successively and continuously crimped onto both ends of the predetermined length electric wire W1 using devices selected from the devices E, E2, . . . . In FIGS. 11A and 11C, one end of the length wire, designated W,', is connected to a terminal 48. by a device E. shows the crimped state. For crimping, the device E is raised by the cylinder 44 as shown in FIGS. 5a and 5b. Next, the wire crimping portion 48a of the terminal 48 is placed on the press stand 47 and the ram 46 is lowered using a known mechanism. After crimping, the device E1 is lowered in the opposite direction to return to the state shown in FIG. 5a.

Continuous crimping of terminals can also be achieved by providing one of the wire clamping rod 3 and the group of crimping devices E, E, .

[Composite crimping process for terminals]

Composite crimping, in which two or more electric wires are crimped and connected to one terminal, is achieved in parallel with the crimping process.

That is, as shown in FIG. 11, a combination head 50 which can be raised and lowered is located between the stripping device and the terminal crimping device E, and its wire clamp plate 51 is attached to a wire clamp indicated by reference numeral 4I. It's right above. Then, the wire clamp plate 51 descends, grips the end portion of the fixed-length wire WI'', and then rises, moves the wire clamp rod 3 by one pitch, and lowers and raises it in the reverse operation to the above, as shown in FIG. As shown in C, the fixed-length electric wire W in the adjacent electric wire clamp 4□ is overlapped and held.

FIG. 12 shows a composite clamping state of fixed length electric wires W, // and W, //F by the electric wire clamp 4□. Therefore, when the wire clamp 4□ reaches the desired terminal crimping device (E,,E,...) due to the intermittent movement of the wire clamp rod 3,
The crimping connection can be made in the same way as in the normal crimping process.

In addition, the above-mentioned composite clamping for composite crimping of electric wires (12th
), by moving the composite head 50 in parallel to the wire clamp 7°3, a desired length of wire W can be obtained.
It can be done more easily and in a variety of forms.

In this way, as shown in FIG. 11d, a plurality of electric wires with terminals (standard length electric wires) W including composite crimping are formed into a secondary intermediate product P2 in which both ends thereof are held between the wire clamps 4 of the wire clamp rod 3. is obtained.

[Case fitting process]

The secondary intermediate products P2 are collectively transferred to a setting table 52 on which a plurality of connector housings 11512s1+ and I4 are arranged, as shown in FIG.

Here, the moving plate 64 is moved along the guide rail 66 by the operation of the step motor 68, as shown in FIG. 6a, and positioned above the desired wire clamp 4.

Next, by operating the cylinder 65, the holder support plate 61, ie, the wire clamp plate 56, is lowered to grip the fixed length electric wire W (FIG. 6b), and then the terminal gripping claw 54 and the wire gripping claw 55 are lowered, respectively. Wire crimping portion 48 of terminal 48
a and the electric wire W1 from both sides (Fig. 6C).

At this time, as shown in FIGS. 7a and 7b, the terminal gripping claws 54
．． The temporary terminal holder 57 between the terminals 54 is lowered by the operation of the lifting cylinder 63 to push down the terminal 48, and cooperates with the protrusions 54a and 55a to arrange the terminal 48 in a substantially horizontal constant posture.

Subsequently, the terminal gripping claw 54 to the wire clamp plate 56 are raised in the reverse operation to remove the wire W from the wire clamp 4, and if necessary, the movable plate 64 is moved laterally in the same manner as above to remove the terminal 48. The distal end of the connector housing 11, I2, .

Next, as shown in FIGS. 6e and 6f, the head holder 59 is advanced toward the housing and the electrical contact portion 48b of the terminal 48 is inserted into the terminal accommodating chamber 73, and then the terminal gripping claw 54 and the wire gripping claw 55 Open and raise.

Next, as shown in FIG. 6g, the head holder 59 is further advanced while holding the wire WI with the wire clamp plate 56.
The terminal 48 is inserted into the terminal accommodating chamber 73 as shown in FIG. As a result, the terminal 48 is engaged with and locked with the locking arm 74.

By repeating the above operations, the terminal 48 of the desired fixed length electric wire WI is connected to the desired connector housing (II).

I2...) can be inserted into a predetermined terminal accommodating chamber 73.

[Terminal alignment mechanism]

When the terminal 48 is inserted into the terminal accommodating chamber 73 in FIGS. 6d and 6e, both axes N and N are aligned as shown in FIG. 8a.
' may be parallel, but if the axis N of the terminal 48 is tilted as shown in Figure 8, smooth insertion will not be possible.

Therefore, the sensor 71 detects the error between the distance 2' between the sensor 71 and the tip of the terminal 48 and the set value l, and if there is no error, move it by l and insert it as it is, and the error (±Δl) If there is, move the moving plate 64 by 2±Δl to correct it.

Since this set value l varies depending on the shape, size, etc. of the terminal 48, it is stored in advance in the control device G for each type. As the sensor 71, a known sensor including a light emitting element and a light receiving element including a phototransistor, for example, can be used. Further, the reflection angle may be measured and compared instead of the distance β l /.

In addition, when aligning, it is not necessary to make the axis N of the terminal parallel to N'.If the center 0 of the tip of the terminal 4 is aligned with the axis N' of the terminal accommodation chamber 73, insertion will be easy. It is possible.

[Terminal insertion check mechanism]

Although the case fitting is completed by inserting the terminal on the 4th day shown in FIG. 6g, it is preferable to check for incomplete insertion.

Therefore, as shown in FIG. 9, the mounting head 58 is swung (backswinged) in the direction of the arrow to apply a predetermined tension to the electric wire WI. This makes it possible to determine whether there is incomplete insertion. As described above, instead of swinging, the wire clamp 56, ie, the head holder 59, may be moved backward.

FIG. 13 shows a state in which the fixed-length wire W1 group fitted in the case is removed from the wire clamp rod 3. Then, tape T, T2 at appropriate locations of the group of wires W3 of fixed length arranged in a U-shape between each connector housing IIy2, I3, and I4.
, 'r3...... and expand them, we get
A final product P3 in the form of a normal wire harness as shown in FIG. 14 is obtained.

Optical Plate ■ Four Years As explained above, according to the present invention, insertion of a terminal with an electric wire into a connector housing is not affected by the type of terminal, and
Moreover, this can be done without using an auxiliary jig such as a terminal insertion guide, and it is possible to check for incomplete insertion of the terminal and prevent the occurrence of defective products.

[Brief explanation of the drawing]

Fig. 1 is a schematic layout diagram of the entire automatic insertion device for a terminal with a wire into a connector housing including the device of the present invention, Fig. 2 a and b are an enlarged plan view and a side view of a wire clamping rod used in the present invention; Figures 3a-f are side views showing the manufacturing process of a fixed-length electric wire according to the present invention; Figures 4a-e are plan views showing the manufacturing process of a standard-length electric wire; Figures 5a and b are views of the present invention. FIGS. 6a-g are explanatory diagrams of the case fitting process according to the present invention, and FIGS. 7a and b are diagrams showing the gripping state of the electric wire and terminal in the case fitting process, respectively. Fig. 8a and b are explanatory views of the terminal centering mechanism in the case fitting process; Fig. 9 is an explanatory view of the terminal insertion state checking mechanism in the case fitting process; Fig. 10 is an explanatory view of the terminal alignment mechanism in the case fitting process; FIGS. 11a to 11d are explanatory diagrams of the process from straightening and stripping the fixed-length electric wire to terminal crimping according to the present invention, and FIG. 12 is a composite of the fixed-length electric wire. 1 wire for crimping
FIGS. 13 and 14 are explanatory diagrams for converting the fixed electric wire, which has been fitted into a case, into a normal wire harness according to the present invention. 1.1'...transport platform, 2...endless chain, 3...
・Electric wire clamp rod, 4...Electric wire clamp, 4a...
Pincer, 5... Support rod, 6... Endless chain, 7.
... Rod holder, 8... U-turn turning head, 9... Enlarger head, 10... Electric wire temporary holding plate, 11... Transfer head, 12... Bin, 13... Electric wire clamp board, 1
3a... Notch recess, 14... Wire cutting blade, 15...
・Rotating sleeve, 16... Mounting board, 17... Frame, 18... Cylinder, Work 9... Cutting blade mounting plate,
20... Bin, 21... Cylinder, 22... Motor, 23... Pin guide plate, 24... Electric wire hooking bin, 25... Mounting board, 26... Cylinder, 27...
・Guide frame, 28... Length measurement motor, 29...
Sprocket, 30...Endless chain, 31...Wire arrangement plate, 32...Pole holder, 33...Wire feeding guide ring, 34...Wire check roll, 35...Wire insertion Pipe, 36... Wire locking plate, 37... Wire clamp plate, 38... Head holder, 39... Cylinder,
40...Frame, 41...Cylinder, 42...
Wire fixing head, 42a... Wire fixing plate, 43...
Base, 44... Lifting cylinder, 45... Rod, 4
5a... Guide tube, 46... Ram, 47... Press stand, 48... Terminal, 48a... Electric crimp part, 48b
... Electrical contact part, 49 ... Terminal take-up reel, 50.
...Composite head, 51...Wire clamp plate, 52...
-Set stand, 53...Support frame, 54...Terminal gripping claw, 54a...Protrusion, 55...Wire gripping claw, 5
5a...Protrusion, 56...Wire clamp plate, 57...
・Terminal holding plate, 58... Mounting head, 58a... Mounting board, 59... Head holder, 60... Guide rod, 6E... Holder support plate, 62... Board part, 63
... Lifting cylinder, 64... Moving plate, 65... Cylinder, 66... Guide rail, 67... Guide roll, 6th... Step motor, 69... Endless chain, 70...・・Lock stand, 71・・Sensor, 72・
... Support shaft, 73 ... Terminal accommodation chamber, 74 ... Locking arm,
A... Reel station, B... Apparatus for making fixed length electric wire, C... Wire straightening device, D... Electrical/wire stripping device, E, E,... Terminal crimping device , F...Case fitting device, G...Control device, H...Stock. Station, 11, I2, I:l...Connector housing, L...Length, N, N'...Axis, 0...Center, P+, Pz, P3'''1
Next, secondary, final product, T1, T,, T,...tape,
W...long electric wire, Wl...standard length electric wire, W...conductor. Patent applicant Yazaki Corporation (CI) Figure 2 Figure 3 (al (bl CI Figure 4 el Figure 3 (d+ Figure 4 (a) (b) Figure 6 48b 74 h Figure 12

Claims (5)

[Claims] (1) A mounting head is attached to the movable plate so that it can move toward and away from the movable plate, and can be moved up and down, and the terminal gripping claws and wire gripping claws, which are provided on the mounting head so as to be able to move up and down, and the wire clamp plate are arranged in parallel on the wire clamping rod. After gripping the wire crimping part and the wire of the terminal with the wire held in parallel with the wire clamp, the mounting head is brought close to the connector housing, and the electrical contact part of the terminal is inserted into the terminal accommodation chamber of the connector housing. When the terminal gripping claw and the wire gripping claw are opened, both of the grasping claws are raised, and then the wire clamp plate holding the wire approaches the connector housing to lock the terminal with the wire in the terminal housing chamber. A method for inserting a terminal with an electric wire into a connector housing, characterized in that the electric wire clamp plate is moved away from the connector housing after the locking is completed, and a predetermined tension is applied to the terminal with an electric wire to determine whether the locked state is good or bad. (2) The insertion method according to claim 1, wherein the mounting head is moved backward relative to the movable plate to move the wire clamp plate away from the connector housing. (3) The mounting head is rotatably supported by a head holder which is attached to the movable plate so as to be able to move toward and away from it and move up and down, and the mounting head is backswung relative to the head holder and the wire clamp plate is rotated. 2. The method of claim 1, wherein the insertion method is performed at a distance from the connector housing. (4) At the lower end of the mounting head, a terminal gripping claw and a wire gripping claw, which can be opened and closed, are provided so as to be able to move up and down, and a wire clamp plate that can be opened and closed is provided, and the mounting head is provided so that it can move toward and away from the movable plate, and can be moved up and down. An apparatus for inserting a terminal with an electric wire into a connector housing, characterized in that the movable plate is provided so as to be movable in parallel with respect to a set base on which a plurality of connector housings are arranged in parallel. (5) The insertion device according to claim 4, wherein the mounting head is rotatably supported by a head holder provided so as to be able to move toward and away from the movable plate and to move up and down.