JPH09190864A - Wire terminal processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a wire terminal processing device which is convenient for portability and to carry out the application work of a terminal automatically and rapidly, by providing specific mechanisms in a portable casing. SOLUTION: This wire terminal processing device 1 has a grasping mechanism 4 which can fix the wire terminal and has an insert hole, and a cover cutting and removing mechanism 5 to cut the cover of the wire terminal, and to pull out the cut cover. Furthermore, it has a terminal fit-in mechanism 6 to fit the terminal from the outer side to a core wire exposed at the wire terminal, and a terminal crimp mechanism to calk the terminal fitted to the core wire of the wire terminal and to fix it to the core wire. And a cam mechanism 8 to operate the grasping mechanism 4, the cover cutting and removing mechanism 5, the terminal fitting-in mechanism 6, and the terminal crimp mechanism 7 in order, and an electric drive means 9 to drive the cam mechanism 8 are also provided. Consequently, a process by the manual work is made unnecessary, and the terminal can be installed to the wire rapidly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire end treatment device for automatically fixing a terminal to an end of an electric wire.

[0002]

2. Description of the Related Art Conventionally, in order to fix a terminal to an end of an electric wire, first, a coating of the end of the electric wire is cut off by a manual stripper, and then a base portion of the terminal is externally fitted to a core wire exposed at the end of the electric wire. After that, the base of the terminal was caulked with a manual crimping tool and fixed to the core wire.

[0003]

However, in the conventional terminal fixing method as described above, the stripper and the crimping tool are used.
Since two tools are required and all are manual work, there is a problem that the workability is troublesome and it takes time.

Therefore, the present invention solves the above-mentioned problems of the prior art and provides an electric wire terminal processing device which is capable of automatically and quickly crimping terminals and is convenient to carry. To aim.

[0005]

In order to achieve the above object, an electric wire end treatment apparatus according to the present invention has an insertion opening for inserting an electric wire end, and a gripping mechanism capable of fixing the electric wire end. A coating cutting / extracting mechanism that cuts the coating of the wire end and extracts the cut coating, a terminal fitting mechanism that fits the terminal onto the core wire exposed on the wire end, and a terminal that is fitted onto the core wire of the wire end. A terminal crimping mechanism that crimps and fastens the terminal to the core wire, a cam mechanism that sequentially operates the gripping mechanism, a sheath cutting / extracting mechanism, a terminal fitting mechanism, and a terminal crimping mechanism, and an electric drive that drives the cam mechanism. And means.

It is desirable that the gripping mechanism, the coating cutting / extracting mechanism, the terminal fitting mechanism, the terminal crimping mechanism, the cam mechanism and the electric drive means are provided in the portable casing. Further, in the state in which the wire end is inserted into the insertion opening of the gripping mechanism by a predetermined size, the tip of the wire end is received and the tip of the wire end is detected to start driving the electric drive means. It is also desirable to have activation means. Further, it is also preferable that when the cam shaft of the cam mechanism makes one rotation, the crimping operation of the terminal is completed and the electric drive means is automatically stopped at the origin position.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the embodiments.

FIG. 4 shows an embodiment of an electric wire end treatment device according to the present invention. This electric wire end treatment device has an end portion of an electric wire formed by surrounding a conductor core wire with an insulator covering. ,
This is for fixing a connection terminal, and can be carried by holding a handhold frame 1a swingably provided on the portable casing 1 and carrying it.

On the front surface of the casing 1, a power button B
The working lamp L ₁ , the core wire detection lamp L _2, and the workable lamp L ₃ are provided. In addition, an insertion opening 3 for inserting a wire end is opened on the front surface of the casing 1, and a terminal insertion portion 73 for inserting a terminal is provided on the upper surface.

As shown in FIG. 21, FIG. 22, and FIG. 28, the terminal T is composed of a cylindrical base Ta and a fork-shaped connecting portion Tb connected to one end of the base Ta. As the material of the terminal T, a metal such as copper that is relatively soft and has low electric resistance is used. The terminal T may be composed of a cylindrical base portion Ta and an annular connecting portion Tb as shown in FIG.

Therefore, as shown in FIGS. 1, 2, and 3, this electric wire end processing device has the above-mentioned insertion opening portion 3 and a gripping mechanism 4 capable of fixing the electric wire end, and the electric wire end The coating cutting / extracting mechanism 5 that cuts the coating and extracts the cut coating, the terminal fitting mechanism 6 that fits the terminal to the core wire exposed at the wire end, and the terminal that is fitted to the core wire of the wire end A terminal crimping mechanism 7 for fixing the terminal to the core wire, a cam mechanism 8 for sequentially operating the gripping mechanism 4, the coating cutting / extracting mechanism 5, the terminal fitting mechanism 6, and the terminal crimping mechanism 7.
And an electric drive means 9 for driving the cam mechanism 8.

The gripping mechanism 4, the coating cutting / extracting mechanism 5, the terminal fitting mechanism 6, the terminal crimping mechanism 7, the cam mechanism 8 and the electric drive means 9 are provided in the portable casing 1. Specifically, the casing 1 has a skeleton frame 1b framed in the shape of a rectangular parallelepiped, and members constituting each mechanism are attached to the skeleton frame 1b.

As shown in FIGS. 2 and 5, the gripping mechanism 4 is
A swing arm 11 pivotally attached to a fixed plate 10 arranged on the front surface of the skeleton frame 1b so as to swing around a horizontal axis in the front-rear direction.
And a vertically movable piece 12 that is vertically movably attached to the fixed plate 10 and is interlocked with one end of a swing arm 11, and has an electric wire receiving groove 13a in the front-rear direction that opens upward and is fixed to the fixed plate 10. And a receiving piece (13).

At the other end of the swinging arm 11, a rolling roller 11a is pivotally mounted on the sloped surface of the tapered push-up member 14 fed by the cam mechanism 8. Further, at the lower end of the lifting piece 12, an electric wire pressing portion 12a is formed which is inserted into the electric wire receiving groove 13a of the receiving piece 13 from above and fixes the electric wire inserted in the groove 13a in a pressing manner. Thus, the space between the wire receiving groove 13a of the receiving piece 13 and the wire pressing portion 12a of the elevating piece 12 serves as the insertion opening 3.

The lifting piece 12 is always elastically biased upward by a spring member (not shown). As a result, when the tapered push-up member 14 is retracted, the rolling roller 11a side of the swing arm 11 is lowered and the lifting piece 12 is held in a raised state.

Further, as shown in FIG.
Electric wire detector 15 for detecting the presence or absence of an electric wire in the electric wire receiving groove 13a
Is attached. The electric wire detector 15 includes a first switch 15a fixed to the receiving piece 13 and an electric wire receiving groove 13 in the receiving piece 13.
and a switch arm 15b pivotably mounted around an axis in a direction parallel to the direction a.

When there is no electric wire, the switch arm 15b is held such that the front end thereof is slightly inside the electric wire receiving groove 13a when viewed from the front, and the first switch 15a is turned off. When the electric wire enters the electric wire receiving groove 13a,
The tip of the switch arm 15b is pushed by the electric wire and swings outward, and the first switch 15a is turned on.

This device also has a guide mechanism for inserting electric wires.
Equipped with 90. The guide mechanism 90 has an elevating piece 12 at one end.
Of the first swing arm 91, which is pivotally connected to the upper part of the arm and the middle part is pivotally connected to the fixing plate 10, and one end is connected to the other end of the arm 91 and the middle part is pivotally connected to the fixing plate 10. A second swing arm 92 and a solenoid 94 having a linear drive arm 93 pivotally connected to the other end of the second swing arm 92.

Then, in a state where the power is not turned on, or
When the wire is not pulled out immediately after the crimping is completed,
As described above, the wire pressing portion 12a of the lifting piece 12 is disengaged from the wire receiving groove 13a, but when the power is turned on and the work is ready, the solenoid 94 is actuated and the linear drive arm 93 is lowered. (1) The swing arms 92, 91 swing and the lifting piece 12 descends a little, and the wire pressing portion 12a moves into the wire receiving groove 13a.
Slightly inserted (not shown).

Thus, the wire end can be securely inserted into the insertion port portion 3, and the switch arm 15b of the wire detector 15 can be reliably swung by the wire end when the wire end is inserted. It can be reliably detected that it has been inserted.

When the wire end is inserted into the insertion port 3 and the wire detector 15 detects the wire, the solenoid 94 is turned off. However, as will be described later in detail, the gripping mechanism 4 immediately follows. It operates and the lifting piece 12 descends almost completely.

Next, as shown in FIG. 1, FIG. 3, FIG. 6, and FIG.
A tip positioning operation starting means 16 for receiving the tip of the wire end and detecting the tip of the wire end to start driving the electric drive means 9 in a state where the wire end is inserted by a predetermined size. ing.

The tip positioning operation starting means 16 is disposed on an inward extension line of the wire receiving groove 13a and has a second switch 17 having a swing switch piece 17a on the front surface thereof, and the second switch 17 is moved in the left-right direction. First slide rod movably supported
18, a swing rod 19 whose upper end is interlockingly connected to the base end of the slide rod 18, a spring member 22 for elastically biasing the swing rod 19 so as to swing inward in the left-right direction, A second slide rod 20 having one end pivotally connected to the lower end of the moving rod 19 and the second slide rod 20.
The second slide rod is connected to the other end of the
A solenoid 21 for pulling 20.

The second switch 17 includes a timer 71 and a relay 72.
And is electrically connected to an operation control circuit for controlling the operation of the solenoid 21 and the motor of the electric drive means 9.
Then, as shown in FIG.
When the end of the electric wire W is inserted by a predetermined size L into the wire, the tip of the electric wire W pushes the rocking switch piece 17a of the second switch 17 to switch on, and the end of the electric wire W passes through the second piece of the switch piece 17a. It can be stopped at the front of the switch 17.

The operation control circuit is constructed so that the solenoid 21 and the motor of the electric drive means 9 are driven when the second switch 17 is turned on. As a result, when the end of the electric wire W is inserted into the insertion opening 3 as shown in FIG. 8, immediately after that, the electric drive means 9, the cam mechanism 8 and the gripping mechanism 4 are driven and the electric wire W is fixed so as not to move. And the solenoid
21 drives, and the second switch 17 moves (retracts) to the side outward as shown in FIG.

After the terminal processing is completed, when the operation control circuit pulls out the electric wire and the first switch 15a is turned off, the solenoid 21 is de-energized and the second switch 17 is moved to the electric wire receiving groove 13a. It is configured to return to the inward extension line.

Further, as shown in FIGS. 1, 10, 11 and 12, the coating cutting / extracting mechanism 5 includes a fixing plate 10 of the casing 1.
A swing plate 23 pivotally mounted about a first axis M ₁ so as to be swingable and driven to swing by a cam mechanism 8, and two second and third swing plates 23 orthogonal to the swing plate 23. as the blade portion 24a at the cam mechanism 8 while being pivotally connected to the wobble plate 23 as can swing axis M _2, M ₃ around, 24a disconnects only covering of the wire in proximity to each other rocking A pair of coating cutting cutters driven dynamically
It has 4 and 24.

On the pivot shaft 23a of the rocking plate 23, the rocking plate 23 is attached.
A spring member 23b that is always elastically urged in the swinging direction in which it approaches the fixed plate 10 is externally fitted. The inside of the base of the oscillating plate 23 is fed forward by the cam mechanism 8 so that the oscillating plate 23
A pressing rod (42) for pushing the inner surface of the base portion of the front side is provided. Further, a spring member 26 for elastically urging the base portions of the cutters 24, 24 in a swinging direction in which the base portions of the cutters 24, 24 approach each other is attached to a portion of the coating cutting cutters 24, 24 near the base ends.

Further, rollers 24b, 24b which are in rolling contact with the taper surface of the taper-like expanding member 25 fed by the cam mechanism 8 are pivotally attached to the base ends of the coating cutting cutters 24, 24. . A pin 35 having a tapered portion 35a for opening the cutters 24, 24 is fixed to the fixed plate 10. The pin 35 is inserted into a hole penetrating the oscillating plate 23, and when the oscillating plate 23 oscillates, the tapered edges 35a of the pin 35 make sliding contact with the opposite edges of the cutters 24, 24, and the cutters 24, 24. Is configured to open at the tip (see Figures 10, 12 and 20).

In the vicinity of the base ends of the cutters 24, 24 of the fixed plate 10, the base ends of the cutters 24, 24 are detachably locked to bring the cutters 24, 24 into a closed state (cover cutting state). Notch balls 74, 74 for holding are attached.

Further, as shown in FIG. 13, at positions where the blade portions 24a, 24a near the tips of the coating cutting cutters 24, 24 face each other,
Semi-circular cutouts that become circular holes when they are close to each other
27,27 are provided. The radii of the semicircular cutouts 27, 27 are set to a value slightly larger than the radius of the core wire of the electric wire W to be processed. Thereby, only the coating of the electric wire W can be cut. The core wire may be formed by bundling a plurality of extremely thin conductor wires or may be formed by a single thick conductor wire.

Next, (returning to FIG. 1, FIG. 10, FIG. 11 and FIG. 12), the terminal crimping mechanism 7 comprises a pair of pressing pins 28, 28 which can approach and separate from each other and two parallel fourth pins.・ Fifth axis M ₄ , M
A pair of swing arms 29, 29 that are swingable around _{5 and} are swing-driven by a cam mechanism 8 so as to push the pair of push pins 28, 28 in a direction in which they approach each other.

The pressing pins 28, 28 and the swing arms 29, 29 are attached to the swing plate 23 of the coating cutting / extracting mechanism 5. Specifically, as shown in FIG. 10, a mounting member 30 having two upper and lower horizontal piece portions 30a and 30b having vertical pin insertion holes is fixed to the swing plate 23, and the horizontal piece portion 30a, Pressing pins 28, 28 are vertically movable in the insertion holes of 30b, and their tip portions are inserted so that they can approach and separate from each other. Also, the horizontal piece 30
Spring members 31 and 31 are interposed between a and 30b and the pressing pins 28 and 28 to elastically urge the pressing pins 28 and 28 outward in the vertical direction.

The tip ends of the swinging arms 29, 29 come into contact with the upper end surface of the upper pressing pin 28 and the lower end surface of the lower pressing pin 28. Further, a spring member 32 for elastically urging the bases of the swing arms 29, 29 in a swing direction toward each other is attached to a portion of the swing arms 29, 29 close to the base end. Further, rollers 34, 34 which are in rolling contact with the tapered surface of the tapered expanding member 33 fed by the cam mechanism 8 are pivotally attached to the base ends of the swing arms 29, 29 (FIG. 11). See Figure 12).

As described above, the swing arms 29, 29 are attached to the swing plate 23.
As a result, the swing plate 23, the cutters 24, 24, and the swing arms 29, 29 are integrally swung about the first axis M ₁ . This can contribute to the overall compactness.

As shown in FIGS. 1 and 14, the cam mechanism 8 includes a first follower 36 for driving the gripping mechanism 4 and second and third followers for driving the coating cutting / extracting mechanism 5. 37, 38, a fourth follower 39 for driving the terminal fitting mechanism 6, and a fifth follower 40 for driving the terminal crimping mechanism 7.

The first follower 36, the second follower 37, the third follower 38, the fourth follower 39 and the fifth follower 40 are arranged parallel to each other. Specifically, the first follower 36, the second follower 37, the third follower 38, and the fifth follower
The follower 40 is attached to the follower receiving member 41 fixed to the skeleton frame 1b of the casing 1 so as to be slidable in the front-rear direction (see FIG. 1). And the first follower 36, the second follower 37 and the third
The push-up member 14, the expanding member 25, the pressing rod 42, and the expanding member 33 are attached to the tips of the follower 38 and the fifth follower 40, respectively.

Further, the cam mechanism 8 includes a first cam plate for giving forward feed to the first follower 36, the second follower 37, the third follower 38, the fourth follower 39 and the fifth follower 40. 43, second cam plate 44, and third cam plate
It has a 45, a fourth cam plate 46, a fifth cam plate 47, and a cam shaft 48 to which these cam plates are fixed.

A driven gear 49 which is interlocked with the electric drive means 9 is fixed to the cam shaft 48. In addition, the electric drive means 9
Has a motor 50 and a driving gear 51 fixed to the output shaft of the motor 50 and meshing with the driven gear 49 (see FIG. 2).

Next, as shown in FIG. 1, FIG. 3, FIG. 14 and FIG. 15, the terminal fitting mechanism 6 includes a terminal block 52 fed by the cam mechanism 8 and a front part of the terminal block 52. A pair of terminal base holders 53, 53 pivotally attached so as to be swingable and openable, and a cam mechanism 8 for feeding the terminal base holders 53, 53.
And a holding rod (54) for pressing the terminal base portion onto the cut surface of the electric wire when the holding bodies (53, 53) are opened.

The terminal block 52 is attached to a fixed base 55 fixed to the frame 1b of the casing 1 so as to be slidable in the front-rear direction. The base end portion of the pressing rod 54 is connected and fixed to the fourth follower 39 of the cam mechanism 8. In addition, the terminal block 52 has a terminal insertion groove 56 in the front-rear direction, and a pressing rod 54 is fitted in the terminal insertion groove 56.
Is slidably inserted. Further, a spring member 57 for elastically biasing the fourth follower 39 and the pressing rod 54 to the rear of the terminal block 52 is interposed between the fourth follower 39 and the terminal block 52. . The pressing rod 54 includes a rod body 54b and a tip member 54a attached to the tip of the rod body 54b so as to be slidable back and forth. Between the tip member 54a and the rod body 54b, the tip member 54a
A spring member (not shown) for elastically urging the spring forward is interposed.

The terminal block 52 is always elastically biased rearward by a spring member (not shown). Therefore, the cam mechanism 8
The terminal block 52 retracts in the state where the forward pushing force by the force is not applied.

Further, above the terminal block 52, a terminal feeder 58 for supplying a terminal to the terminal insertion groove 56 of the terminal block is arranged. The terminal supplier 58 includes an inclined member 61 having a terminal supply passage 60 whose upper and lower ends are open. The lower end opening of the inclined member 61 is located near the front end of the terminal insertion groove 56 of the terminal block 52. Further, a guide piece 62 for guiding the terminal supplied from the inclined member 61 into the terminal insertion groove 56 is attached to the tip end portion of the terminal base 52.

Further, as shown in FIG. 16, a base holding hole 63 for holding the base Ta of the terminal T shown by an imaginary line and a core wire communicating therewith are inserted at the tips of the pair of terminal base holding bodies 53, 53. A pair of half-divided portions 53a, 53a forming a hole 64 are provided. The respective half-divided portions 53a, 53a include a base holding hole 63 and a core wire insertion hole 64.
And groove portions 65, 65 facing each other for forming

Further, locking arms 53b, 53b extending leftward and rightward are provided on the bases of the terminal base holders 53, 53 so as to project from side to side. As shown in FIGS. 14, 15, and 17, the locking arms 53b and 53b are arranged on the left and right sides of the tip of the fixed base 55 when the terminal base holders 53 and 53 are closed and opened. It locks to the notch balls 66, 66 provided. Also, as shown in Fig. 15, the terminal block 52
The locking protrusions provided on the fixed base 55 when the
The locking arms 53b, 53b are locked to 83, 83 to be in a closed state.

Further, as shown in FIGS. 14 and 17, in front of the pair of terminal base holders 53, 53, the terminal base holders 53, 53 are provided.
A chevron expansion member 68 having slanted surfaces 67, 67 slidably in contact with the distal end portion of the terminal base portion holding body 53, and pushing the terminal base portion holding bodies 53 open is provided. The terminal base holding bodies 53, 53 are formed with rounded surfaces 53c, 53c that are in sliding contact with the left and right sloped surfaces 67, 67 of the chevron expansion member 68, respectively. The chevron expansion member 68 is composed of the lower horizontal piece 30b of the mounting member 30 for the pressing pins 28, 28 shown in FIG.

Further, as shown in FIG. 1, in this electric wire end treatment device, when the cam shaft 48 of the cam mechanism 8 makes one revolution, the crimping operation of the terminal is completed, and the electric drive means 9 shown in FIG.
Is configured to automatically stop at the origin position.

That is, the sixth cam plate 69 is fixedly attached to the cam shaft 48, and the follower receiving member 41 is provided with the third switch 70 for detecting one rotation of the sixth cam plate 69. The third switch 70 is electrically connected to the operation control circuit described above. Although a holding circuit (not shown) is configured to stop the electric drive means 9 when the cam shaft 48 makes one revolution, the holding circuit alone causes the rotation angle to exceed a certain angle due to the inertia of the motor 50. , It is piled up and the stop position (angle) shifts. The sixth cam plate 69 and the third switch 70 are for stopping the cam shaft 48 at the origin position by eliminating such a shift of the stop position.

The use and operation of this wire end treatment device will be described. First, in FIG. 4, the power cord 2 is connected to a general power source such as a household power source and the power button B is pressed. . As a result, the pilot lamp built in the power button B and the workable lamp L ₃ are turned on. In addition, when the wire is inserted, the guide mechanism 90 is driven to lower the lifting piece 12 to a predetermined position. The terminals are inserted in the terminal insertion portion 73 in advance.

Next, as shown in FIG. 8, the end of the electric wire W is inserted from the insertion opening 3 to a position where the end stops. As a result, the first switch 15a of the electric wire detector 15 is turned on, the electric wire W is detected, and the second switch 15a is detected.
17 turns on. And the operation control circuit (not shown)
In response to the signal from the second switch 17, as shown in FIG. 9, the second switch 17 retreats outward and the electric drive means 9 not shown rotates. Moreover, the working lamp L not shown
₁ lights up and the ready lamp L ₃ goes out.

As a result, the cam shaft 48 of the cam mechanism 8 starts rotating (see FIG. 1). Then, the first follower 36 and the push-up member 14 at the tip thereof are first sent forward, and the push-up member 14 pushes up the rolling roller 11a of the swing arm 11, as shown in FIG. As a result, the swing arm 11 swings as shown by the arrow, and the lifting piece 12 is pushed down. Then, the wire pressing portion 12a of the lifting piece 12 and the wire receiving groove of the receiving piece 13
The electric wire W is gripped and fixed between the wire 13 and 13a. As a result, the electric wire W is held in the state of being inserted by the predetermined dimension L as shown in FIG.

Next, as shown in FIG. 19, the expanding member 25 and the second follower 37 (not shown) are sent forward, and the base end of the cutter 24 is expanded. As a result, as shown in FIG. 13, the tips of the cutters 24, 24 are closed to be in a closed state, and the electric wire W
The coating is cut. Since the semicircular cutouts 27, 27 of the blade portions 24a, 24a escape the core wire of the electric wire W, the core wire is not cut.

After that, as shown in FIG. 20, the pressing rod 42 and the third follower 38 (not shown) are sent forward, and the base end of the rocking plate 23 is pushed forward so that the rocking plate 23 and The cutter 24 and swing arm 29
With the cutters 24, 24 closed, swing in the direction of arrow A. As a result, the coating Wa of the electric wire W is pulled out backward, and the core wire Wb is exposed. After that, the opposite end edges of the cutters 24, 24 are brought into sliding contact with the tapered portion 35a of the pin 35, and the tip ends of the cutters 24, 24 are opened.

It should be noted that the terminal T is supplied from the terminal supplier 58 to the terminal block 52 after the operation is started and before the coating Wa of the electric wire W is removed as described above, and as shown in FIG. The pressing rod 54 of the mechanism 6 pushes the terminal T fitted in the terminal insertion groove 56 of the terminal block 52 forward, and the base portion T of the terminal T is pushed.
a is inserted into the base holding holes of the half-divided portions 53a, 53a of the terminal base holding bodies 53, 53.

After that, the pressing rod 54 and the fourth follower 39 are sent forward, the terminal block 52 is pushed forward, the half-divided portions 53a, 53a approach the electric wire W, and the half-divided portion 53a to the core wire Wb. , 53a are externally fitted (the core wire Wb is inserted into the core wire insertion holes of the half-divided portions 53a, 53a). Then, at the same time as or immediately after the half-divided portions 53a, 53a are externally fitted to the core wire Wb, as shown in FIG. 22, the tip end portions of the terminal base holders 53, 53 are inclined surfaces of the chevron-shaped expanding member 68.
While being slidably contacted with 67, 67, the tip member 54a of the pressing rod 54 forcibly presses the base portion Ta of the terminal T against the cut end surface of the coating Wa of the electric wire W.

After that, as shown in FIG. 23, the pressing pins 28, 28 approach each other and the base portion Ta of the terminal T between the pressing pins 28, 28 is caulked. As a result, the terminal T is fixed to the core wire Wb of the electric wire W. Even when the base Ta of the terminal T is caulked, the base Ta is pressed against the cut end surface of the coating Wa, so that the cut end surface and the terminal base T
There is no gap between the end face of a and the end face of a. This makes it difficult for the base Ta and the coating Wa to bend or break after the terminals are fixed.

Thereafter, as shown in FIG. 24, the pressing pins 28,
28 are separated from each other. At the same time, the terminal block 52 retracts (Fig. 1
reference). At this time, the cam shaft 48 of the cam mechanism 8 makes one rotation after starting the operation, and the third switch 70 moves the sixth cam plate.
One rotation of 69 is detected. The signal from the third switch 70 is sent to the operation control means, the electric drive means 9 is stopped by the operation control means, and the lifting piece 12 is completely raised. At the same time, the working lamp L ₁ is turned off and the core wire detection lamp L ₂ is turned on (see FIG. 4).

Since the elevating piece 12 is completely raised as described above, the wire end with the terminal T fixed can be pulled out. That is, when the electric wire W is pulled out forward, as shown in FIG. 25, the electric wire W can be taken out with the terminal T fixed to the end (core wire Wb) of the electric wire W.

When the electric wire W is pulled out as described above, the electric wire W
The electric wire detector 15 detects the absence of the wire, the second switch 17 of the tip positioning operation starting means 16 returns to the inward extension line of the electric wire receiving groove 13a, and the core wire detection lamp L ₂ is extinguished The possible lamp L ₃ lights up, and the next wire end can be processed (see FIGS. 4 and 6). In addition,
Before processing the next wire end, the terminal T is supplied to the terminal feeder 58.

As described above, according to the electric wire end processing device, the terminal T can be fixed to the electric wire end automatically and quickly only by inserting the electric wire end into the insertion opening 3. Further, since the entire device is housed in the portable casing 1, it is convenient to carry and is most suitable for use in an unspecified place such as electrical work.

Next, FIGS. 26 and 27 show another embodiment, in which the terminal feeder 58 has a terminal correcting portion 75 for correcting the terminal T into a predetermined shape. The terminal correction portion 75 is attached to the upper end of the inclined member 61 having the terminal supply passage 60 and has a correction member 77 having a correction passage 76 communicating with the terminal supply passage 60, and is pivotally attached to the correction member 77. Correcting path by feeding the terminal
And a terminal feeding member 78 for passing the inside of the terminal 76.

The terminal feeding member 78 has a projection 78a for feeding the terminal.
At the outer periphery. Moreover, the terminal feeding member 78 is interlockingly connected to the cam shaft 48 via the interlocking connecting mechanism 82. The interlocking connection mechanism 82 includes a first pulley 80 fixed to the shaft portion of the terminal feeding member 78, a second pulley 81 fixed to the cam shaft 48, and a second pulley 81.
Belt 79 suspended from two first and second pulleys 80, 81
And.

Further, as shown in FIG. 27, the straightening path 76 of the straightening member 77 includes a connecting portion straightening groove 76a and a base insertion slit portion.
And 76b. The projection 78a of the terminal feeding member 78 is configured to pass through the slit portion 76b (FIG. 26).
reference).

By the way, as shown in FIG. 28A, the end portion of the connecting portion Tb of the terminal T may be bent up and down, and it cannot be fitted in the connecting electrode or the like as it is. However, such a terminal T is
By passing through 75, the connecting portion Tb can be straightened as shown in FIG.

This will be described with reference to FIG. 26, FIG. 27 and FIG. 28. From the upper opening of the terminal correction path 76 of the correction member 77, the terminal T is obtained.
Is inserted from the base Ta side and the terminal feed member 78 is rotated, the protrusion 78a of the terminal feed member 78 enters the slit portion 76b of the correction path 76, and the base Ta of the terminal T is pushed obliquely downward. The connecting portion Tb of the terminal T is the correction groove of the correction path 76.
It is pushed into 76a and passes through straightening groove 76a. As a result, the connecting portion Tb of the terminal T can be corrected as shown in (b) of FIG.

[0066]

The present invention has the following remarkable effects by the above-mentioned structure.

According to the electric wire end treatment device of the first aspect, at the end of the electric wire W consisting of the coating Wa and the core wire Wb therein, the coating Wa can be automatically removed and at the same time the connection to the core wire Wb is made. The terminal T of can be fixed automatically. Therefore, no manual work is required, and the terminal T can be quickly attached to the electric wire W.

According to the electric wire terminal processing device of the second aspect, it can be easily carried and is convenient when used in an unspecified place such as electric work.

According to the electric wire terminal treatment device of the third aspect, the terminal treatment work can be automatically started only by inserting the end of the electric wire W into the insertion opening portion 3, so that the operation is easy and the work is easy. Can be done quickly.

According to the electric wire end treatment device of the fourth aspect, it is possible to eliminate an overrun that would cause a double terminal mounting operation after the terminal T is once crimped to the end of the electric wire W. It is possible to prevent equipment failure and damage. In addition, since the terminal crimping work can be continuously performed, the work can be performed in a short time when the terminals T are attached to the ends of the many electric wires W.

[Brief description of the drawings]

FIG. 1 is a simplified plan view showing an embodiment of the present invention.

FIG. 2 is a simplified front view.

FIG. 3 is a simplified side view.

FIG. 4 is a perspective view.

FIG. 5 is an enlarged front view of a main part.

FIG. 6 is an enlarged plan view of a main part.

FIG. 7 is an enlarged rear view of the main part.

FIG. 8 is an explanatory view of an enlarged action of a main part.

FIG. 9 is an explanatory diagram of an enlarged action of a main part.

FIG. 10 is an enlarged rear view of the main part.

FIG. 11 is an enlarged plan view of a main part.

FIG. 12 is an explanatory diagram of an enlarged action of a main part.

FIG. 13 is an explanatory view of the action of the coating cutting cutter.

FIG. 14 is an enlarged sectional side view of a main part.

FIG. 15 is an enlarged plan view of a terminal fitting mechanism.

FIG. 16 is an enlarged sectional plan view of a main part.

FIG. 17 is an operation explanatory view of the terminal fitting mechanism.

FIG. 18 is an explanatory view of the action of the gripping mechanism.

FIG. 19 is an operation explanatory view of the coating cutting / extracting mechanism.

FIG. 20 is an explanatory view of the action of the coating cutting / extracting mechanism.

FIG. 21 is an operation explanatory view of the terminal fitting mechanism.

FIG. 22 is an operation explanatory view of the terminal fitting mechanism.

FIG. 23 is an operation explanatory view of the terminal crimping mechanism.

FIG. 24 is an explanatory view of the operation of the terminal crimping mechanism.

FIG. 25 is an explanatory diagram showing a state in which a terminal is crimped to an electric wire.

FIG. 26 is an enlarged cross-sectional side view of a main part showing another embodiment.

FIG. 27 is an enlarged cross-sectional view of a main part.

FIG. 28 is an explanatory diagram of terminals.

FIG. 29 is a perspective view of another terminal.

[Explanation of symbols]

 1 Casing 3 Insertion Portion 4 Gripping Mechanism 5 Cover Cutting / Extracting Mechanism 6 Terminal Fitting Mechanism 7 Terminal Crimping Mechanism 8 Cam Mechanism 9 Electric Drive Means 16 Tip Positioning Actuation Starting Means 48 Camshaft L Specified Size T Terminal Wa Coated Wb Core Wire

Claims (4)

[Claims] 1. A gripping mechanism 4 having an insertion opening 3 for inserting an electric wire end and capable of fixing the electric wire end, and a covering Wa cutting and extracting the covering Wa of the electric wire end and extracting the cut covering Wa. The mechanism 5, the terminal fitting mechanism 6 for fitting the terminal T onto the core wire Wb exposed on the wire end, and the terminal T fitted on the core wire Wb of the wire end by caulking to fix the terminal T to the core wire Wb. A terminal crimping mechanism 7, a cam mechanism 8 for sequentially operating the gripping mechanism 4, the sheath cutting / extracting mechanism 5, the terminal fitting mechanism 6, and the terminal crimping mechanism 7, and an electric drive means 9 for driving the cam mechanism 8. An electric wire terminal processing device comprising: 2. A gripping mechanism 4, a sheath cutting / extracting mechanism 5, a terminal fitting mechanism 6, a terminal crimping mechanism 7, a cam mechanism 8 and an electric drive means 9 are provided in the portable casing 1. The electric wire terminal processing device described. 3. The electric drive means 9 for receiving the tip of the wire end and detecting the tip of the wire end while the wire end is inserted into the insertion opening 3 of the gripping mechanism 4 by a predetermined dimension L. Tip positioning operation starting means 16 for starting the driving of
The electric wire terminal processing device according to claim 1 or 2, further comprising: 4. When the cam shaft 48 of the cam mechanism 8 makes one revolution,
The wire end treatment device according to claim 1, 2 or 3, wherein the crimping operation of the terminal T is completed, and the electric drive means 9 is automatically stopped at the origin position.