JP3006390B2 - Electric wire straightening device in electric wire processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire processing machine for measuring and cutting an electric wire, stripping the wire, and crimping a terminal. The present invention relates to a wire straightening device for correctly guiding a wire to a blade group and a clamp portion of an index table.

[0002]

2. Description of the Related Art Conventionally, there has been an electric wire processing machine in which an electric wire is cut to length and peeled, and terminals are crimped to both ends. FIG. 5 is a perspective view showing the entire configuration of the electric wire processing machine. Referring to FIG. 1, this type of wire processing machine D is provided with a sizing feeder 1, a cutting / scalping device 2, a first terminal crimping device 3, and a second terminal crimping device 4. I have.

A covered electric wire W given to the electric wire processing machine D
First, the sizing feeder 1 corrects the bending habit and measures the transport amount (the length of the wire to be fed). Therefore, the sizing feeder 1 includes a horizontal straightener 11 and a vertical straightener 12 for correcting a bending habit of the electric wire W, a first electric wire feed roller 13, and a second electric wire feed roller 13 interlocked with the first electric wire feed roller 13. And two electric wire delivery rollers 14. Further, an encoder (not shown) is connected to the second electric wire feed roller 14 so that the amount of electric wire W conveyed is measured.

[0004] The coated electric wire W sent by the sizing feeder 1 is supplied to a cutting and peeling device 2 and cut at a predetermined timing so as to have a predetermined length. In addition, the insulating coatings on the front and rear ends of the cut electric wire are removed. Then, the tip of the electric wire from which the insulation coating has been removed is given to the first terminal crimping device 3 by the swivel arm mechanism 5, and the terminal is crimped. The rear end of the wire from which the insulation coating has been removed is given to the second terminal crimping device 4 by an index table not shown in the figure, and the terminal is crimped.

FIGS. 6 and 7 are enlarged perspective views showing the configuration around the cutting and peeling apparatus. Referring to these figures, the cutting and peeling device 2 includes a covered electric wire W on a feed path.
In addition, a cutting blade group 21 for performing cutting and covering cutting by opening and closing movements is provided. This cutting blade group 21
Has a pair of cutting blades 21a and a pair of strip blades 21b arranged before and after in the feeding direction of the cutting blades 21a. After the cutting by the cutting blade 21a and the strip blade 21b, the clamp portion 51 of the revolving arm mechanism 5 is moved back and forth to peel off the covered portion of the cut electric wire W to form a strip of the electric wire W.

An electric wire guide member 7 having an electric wire guide port 71 and an electric wire straightening device 8 are arranged between the cutting and peeling device 2 and the index table 6. The electric wire straightening device 8 is arranged on the downstream side in the feeding direction of the electric wire guide member 7, and corrects the bending and the like of the covered electric wire W, and centers the respective blades 21 a and 21 b of the cutting and peeling device 2 and the index table 6. Is guided to the clamp portion 61 of the first embodiment.

FIG. 8 is a front view showing the structure of a conventional electric wire straightening device. Referring to the figure, the wire straightening device 8 includes:
A pair of electric wire straightening guide members 84 and 85 that are supported by the electric wire straightening device main body 81 so as to be openable and closable around the respective horizontal shafts 82 and 83 and that hold the electric wire W, are coaxially rotatably attached to the respective horizontal shafts 82 and 83, A pair of gears 8 that rotate while meshing with each other
6, 87, and a spring 8 interposed between the lower end of the long wire correction guide member 84 on the left side in the figure and the cam mechanism 88.
9 are provided. Then, the electric wire straightening device 8 operates the cam mechanism 88 to the left in the drawing and pulls the lower end of the electric wire straightening guide member 84 connected to the cam mechanism 88, and in conjunction therewith, the electric wire straightening guide members 84, 8
5 is closed (indicated by a dashed line in the figure), and when the cam mechanism 88 is returned to the original position, the electric wire straightening guide member 8 interlocks with this.
4, 85 are opened (shown by a solid line in the figure). The spring 89 has a function of protecting the electric wire W from being damaged when the electric wire W is sandwiched between the electric wire correction guide members 84 and 85.

Therefore, the electric wire feeding rollers 13,
When the feeding of the electric wire W in the feed direction is completed by 14, the power of the cam mechanism 88 closes the electric wire straightening guide members 84 and 85 of the electric wire straightening device 8 (see FIG. 7). Before the clamp 61 of the index table 6 is closed, the power of the cam mechanism 88 opens the wire straightening guide members 84 and 85 of the wire straightening device 8 (see FIG. 6).

[0009]

The turning arm mechanism 5 described above.
As shown in FIGS. 6 and 7, a swing arm 52 rotatably supported around a drive shaft (not shown) and a swing arm 5 are provided.
2, a clamp body 51a fixed to the distal end portion, a clamp pipe 51b fixed to the clamp body 51a and penetrating the electric wire W, and a cutting blade for the electric wire W which is arranged at an end of the clamp pipe 51b on the feed direction side. A clamp nozzle 51c for guiding the feeding to the group 21 is provided. In addition,
The clamp body 51a, the clamp pipe 51b, and the clamp nozzle 51c correspond to the clamp unit 51. Then, the swing arm mechanism 5 swings the swing arm 52 around the drive shaft, and connects the clamp pipe 51 b and the clamp nozzle 51 c at the distal end of the swing arm 52 together with the electric wire W.
It transfers to the 1st terminal crimping device 3 not shown. Due to this relationship, as shown in FIG. 9, in the first terminal crimping device 3, one end of the clamp nozzle 51 c of the turning arm 52 interferes between the anvil 31 and the crimper 32 that moves up and down with respect to the anvil 31. To avoid this, the free length of the electric wire W protruding from the clamp nozzle 51c and the strip S of the electric wire W is increased.

Due to this, as shown in FIG. 10, after the strip S of the electric wire W and the terminal T are crimped, the clamp pipe 51b and the clamp nozzle 51c of the revolving arm 52 move together with the electric wire W to the original position. When the electric wire sending rollers 13 and 14 send out the electric wire W to which the terminal T is crimped in the feeding direction, the electric wire W is deformed by its own weight and is curved by the terminal T protruding from the clamp nozzle 51c. The electric wire W is not guided to the electric wire guide member 7 and the electric wire straightening device 8 in a normal state. For this reason, it is difficult for the clamp portion 61 of the index table 6 to grip the electric wire W.

In addition, the electric wire sending rollers 13 and 14
When sending out the wire W with the terminal T crimped in the feeding direction,
A winding habit of the coiled electric wire W appears, and the end of the electric wire W is bent and sent out in the vertical or horizontal direction. Therefore, the electric wire W is not guided to the electric wire guide member 7 and the electric wire straightening device 8 in a normal state as shown in FIGS. As a result, it is difficult for the clamp portion 61 of the index table 6 to grip the electric wire W.

On the other hand, referring to FIG. 8, when a so-called set occurs in the spring 89 of the wire straightening device 8, the opening of the wire straightening guide members 84 and 85 is reduced. Therefore, when the electric wire sending rollers 13 and 14 send out the electric wire W to which the terminal T is crimped forward, the electric wire straightening guide members 84 and 8 are used.
5, it is difficult to cause the clamp portion 61 of the index table 6 to grip the electric wire W.

Further, since the electric wire sending rollers 13 and 14 stop suddenly at the end of the sending of the electric wire W, a so-called swelling phenomenon (undulation phenomenon) of the electric wire W occurs from the clamp nozzle 51c. As a result, as shown in FIG. 11 and FIG. 12, the blade is not guided in the normal state to the center of each blade 21a, 21b of the cutting and peeling device 2. Thus, the measuring wire W is not guided to the cutting and peeling device 2 in a normal state, and the wire end is cut and cut by the strip blade 21b and the cutting blade 21a.
When the skin is stripped, there is a problem that the core wire is missing or the core wire is broken, and the terminal cannot be crimped in a normal state.

[0014] In particular, the above series of problems include the wire measuring speed,
Appears remarkably when the wire feeding speed is approached to the maximum. For this reason, the wire measuring speed and the wire feeding speed cannot be made close to the maximum, and at present, the wire is processed at half the speed of the machine. The present invention has been made in view of the above technical problem, and even when there is a winding habit, a bend, and a rotting phenomenon of an electric wire, the electric wire can be forcibly guided to a cutting and peeling device and an index table, and the capability of the machine can be reduced. It is an object of the present invention to provide a wire straightening device that can be sufficiently used.

[0015]

According to a first aspect of the present invention, there is provided an electric wire straightening apparatus for cutting and covering a covered electric wire on a feed path by opening and closing motion. A cutting / scalping device having a clamp portion for clamping an end portion of the covered electric wire on the downstream side in the feeding direction from the cutting / scalping device, and having the clamp portion in a plane intersecting with the feeding path. In an electric wire processing machine having an index table for intermittently rotating and moving an end of a clamped electric wire to a terminal crimping position, the electric wire processing machine is provided between a cutting / peeling device and an index table, and is provided with a An opening gap for correcting a bend and guiding it to a cutting blade group of a cutting and peeling device and a clamp portion of an index table, and which can be guided inward even if the covered electric wire is bent. In addition, a pair of left and right electric wire straightening guide members arranged to be substantially parallel to a direction intersecting the coated electric wire on the feed path and for correcting the bent of the coated electric wire in the left and right direction, above the above each electric wire straightening guide member. And is extended in a direction intersecting with the covered electric wire on the feed path so as to close the opening interval between the electric wire straightening guide members, and for correcting the upward bending of the covered electric wire. Wire straightening guide bar, for the coated wire on the feed path,
Closing means for opening and closing movement of each wire straightening guide members and for covering electric wire of the feeding path, said wires
It is characterized by including lifting means for raising and lowering the correction guide bar.

[0016] The wire straightening apparatus according to claim 2 is claim 1.
In the electric wire straightening device according to the present invention, the opening / closing means includes a pair of racks projecting from each of the electric wire straightening guide members substantially parallel to an opening interval between the electric wire straightening guide members, an opening interval between the electric wire straightening guide members. Is arranged at substantially the center of the rack, and is connected to the gear that rotates while meshing with each of the racks, and is connected to the one-side wire straightening guide member, and moves the wire straightening guide member in a direction crossing the covered wire on the feed path. And a lifting / lowering means connected to the wire straightening guide bar, and including a fluid pressure circuit for lifting / lowering the wire straightening guide bar with respect to each of the wire straightening guide members. Is what you do .

[0017]

In the electric wire straightening device according to the first aspect, when the coated electric wire on the feed path is guided to the cutting blade group of the cutting and peeling device and the clamp portion of the index table, each electric wire straightening guide member is opened and closed by the opening and closing means. At the same time, the wire straightening guide bar is lowered by the lifting means.
Then, each electric wire straightening guide member corrects the bending of the covered electric wire in the left-right direction, and the electric wire straightening guide bar corrects the upward bending of the coated electric wire.

As described above, when the electric wire straightening guide member and the electric wire guide bar are closed and the coated electric wire on the feed path is sandwiched from three directions, the electric wire has a curl or bend, or the wire has a sticking phenomenon. Even if it comes out,
The bending or the like is corrected by the wire straightening guide member and the wire straightening guide bar. For this reason, the electric wire is forcibly guided to the center of the cutting blade group of the cutting and peeling device, so that the electric wire strip can be reliably performed. Further, since the electric wire is securely held by the clamp portion of the index table, it can be reliably transferred to the terminal crimping position in the next step.

Therefore, even when the wire measuring speed and the wire feeding speed are set to the maximum speed, the influence of winding habits, bending and staking phenomenon of the wire is reduced, and the cutting blade group and the index of the wire cutting / peeling device are reduced. It can be guided to the clamp portion of the table without fail. As a result, the capability of the machine can be sufficiently exhibited. In the electric wire straightening device according to the second aspect, when the fluid pressure circuit on the electric wire straightening guide member side is operated to be moved by the one electric wire straightening guide member in a direction crossing the covered electric wire on the feed path, each electric wire straightening guide member Is
Opening and closing movement is performed in a state parallel to the covered electric wire on the feed path.

As described above, instead of using a spring to open the electric wire straightening guide member as in the prior art, the fluid pressure circuit can be operated to open each electric wire straightening guide member. The guide members are arranged substantially parallel to the direction intersecting the covered wire W on the feed path with an opening interval capable of guiding the covered wire inward even if the covered wire is bent. And the opening width between the wire straightening guide members can be sufficiently ensured. Therefore, when sending out the electric wire in the feeding direction, there is no problem that the end of the electric wire hits the electric wire straightening guide member. As a result, even if the bending of the covered electric wire in the left-right direction is large, the electric wire bending guide member can correct the bending of the electric wire.

When the fluid pressure circuit on the wire straightening guide bar side is operated, the wire straightening guide bar moves up and down.
In this way, by merely operating the fluid pressure circuit, the electric wire straightening guide bar is lowered, and the coated electric wire on the feed path is pressed down from above, so that the upward bending of the coated electric wire can be corrected.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 4 is a plan view illustrating a schematic configuration of a wire cutting, peeling, and terminal crimping portion of a wire processing machine using the wire straightening device according to one embodiment of the present invention. Referring to FIG. 1, a pair of feed rollers 211 and 212 for feeding a covered electric wire W sent from an electric wire feed roller (not shown) along a feed path R extending in the vertical direction on the paper. And a cutting and stripping device 300 for cutting and stripping the covered electric wire W on the feeding path R, and a cutting and stripping device 300 disposed on the side of the cutting and stripping device 300 with the feeding path R interposed therebetween. First and second terminal crimping devices 400 and 500,
Has a clamping portion 610 for clamping the electric wire W at a feed from the cutting-skinning device 300 feeding Direction K upstream of the electric wire W is rotated in a plane perpendicular to the clamping portion 610 and the transport path R a pivot arm mechanism 600 for moving the distal end portion W _a to the first terminal crimping apparatus 400, cutting and skinning device 300
It has a plurality of clamp portions 710 which clamp the rear end portion W _b of the wire W at the feed direction K downstream of, the clamp part 7
The rear end portion W _b of 10 intermittently rotated in a plane perpendicular to the transport path R of the electrical wires W second terminal crimping device 500 and the discharge portion (not shown.) The index table 70 is moved to the
0, and a truncated conical wire guide port 8 disposed between the index table 700 and the cutting / scalping device 300.
Wire guide member 800 having wire 10 and wire straightening device 9
00 is provided.

The cutting and peeling apparatus 300 includes a cutting blade group 310 for cutting and covering the coated electric wire W on the feeding path R by opening and closing operations. The cutting blade group 310 includes a pair of cutting blades 311 and a pair of strip blades 312 arranged before and after the cutting blade 311 in the feeding direction.
And After the cutting by the cutting blade 311 and the strip blade 312, the clamp portion 610 of the revolving arm mechanism 600 is moved back and forth to peel off the covering portion of the cut electric wire W to form the strip S of the electric wire W. .

First and second terminal crimping devices 400 and 500
Are bases 410 and 510 fixed to the machine frame;
Anvils 420,520 attached to 0,510
And a crimper (not shown) that is disposed above the anvils 420 and 520 and moves up and down with respect to the anvils 420 and 520. In the terminal crimping apparatuses 400 and 500, the plurality of connected terminals T are cut one by one on the strip S of the electric wire W while cutting between each terminal T and a subsequent connection terminal row. .

The swing arm mechanism 600 includes a pair of columns 620 arranged along the paper surface direction and fixed to the machine frame.
And the drive shaft 6 rotatably supported by the column 620
30, an arm 640 whose base end is integrally rotatable with the drive shaft 630 and is attached so as to be relatively movable in the axial direction.
The clamp 61 fixed to the tip of the arm 640
0, a rotation mechanism (not shown) for rotating the clamp portion 610 within a predetermined angle range via the drive shaft 630 and the arm 640, and an arm for stripping the cut end of the electric wire W. 640 and the clamp unit 610 to the feed path R
And a back-and-forth moving mechanism (not shown) for moving back and forth along.

The clamp portion 610 includes a clamp body 611 fixed to the distal end of the arm 640 and a clamp body 6.
11 and a clamp pipe 6 through which the electric wire W passes
12, a clamp nozzle 613 disposed at the end of the clamp pipe 612 on the feed direction K side for guiding the supply of the electric wire W to the cutting blade group 310, and a clamp pipe slidably supported by the clamp body 611. There is provided a clamp plate (not shown) that moves into a state in which the wire W is advanced from the peripheral portion of the wire 612 into the clamp pipe 612 to hold the wire W and is retracted to release the wire W from being held. The clamp plate is advanced and retracted by a cam mechanism (not shown).

The electric wire straightening device 900 includes an electric wire guide member 8
00 in the feed direction K downstream of the
Blades 310 of the cutting and peeling apparatus 300 and the clamping unit 7 of the index table 700
Guide to 10. The detailed configuration of the electric wire straightening device 900 will be described later. In the above wire processing machine, FIG.
The cutting blade group 3 of the cutting and peeling device 300 from the state shown in FIG.
10, the electric wire W is cut, and the turning arm mechanism 600
The skinning process is performed by moving the index table 700 back and forth. Then, the distal end portion W _a of the wire W in the feed direction K upstream of the cutting blade group 310 is moved is crimped terminal to the first terminal crimping device 400.
Thereafter, the rear end portion W _b of the wire W in the feed direction K downstream side with respect to the cutting blade group 310 is crimped to the terminal is moved to the second terminal crimping device 500. Then, the tip W of the electric wire W
_a is returned to the feed path R again. Then, the cutting blade group 3
10 to the feed path R
And returns to the state shown in FIG. In addition, the electric wire W moved to the second terminal crimping device 500 in the above process is discharged along the moving direction to the second terminal crimping device 500 by further rotation of the index table 700. .

FIG. 1 is a front view showing the configuration of an electric wire straightening apparatus according to one embodiment of the present invention. Referring to the figure, a wire straightening device 900 of the present embodiment includes a pair of left and right support blocks 921 and 921 attached to the front surface of a wire straightening device main body 910.
922, a pair of upper and lower guide shafts 931, 932, which are bridged in parallel between the support blocks 921, 922, and a pair of left and right electric wire straightening guide members 940, 95 mounted to be openable and closable along the respective guide shafts 931, 932.
0, are arranged above the wire straightening guide members 940 and 950, and a wire straightening guide bar 960 provided et the vertically movably with respect to the wire straightening guide members 940 and 950.

The guide shafts 931 and 932 are fixed to the upper and lower portions of the support blocks 921 and 922 via pins 971, 972, 973 and 974. The electric wire straightening guide members 940 and 950 are for correcting the bending of the covered electric wire W in the left-right direction, and can be guided inward even if the covered electric wire W is bent.
Are arranged substantially parallel to a direction intersecting the covered electric wire W on the feed path R. This electric wire straightening guide member 9
Reference numerals 40 and 950 each have a vertically elongated shape so as to protrude above the cutting blade group 310 located at an upper position of the apparatus main body 910, and have locking portions 941 and 951 protruding upward from the apparatus main body 910. The inner surface is cut out in a predetermined shape so as to lock the electric wire W and not to damage the coating of the electric wire W. A rack 942 extending in a direction orthogonal to the wire straightening guide member 940 is provided at a substantially central portion (immediately below the locking portion 941) of the first wire straightening guide member 940 on the left side in the drawing.
Are fixed via bolts 943. A rack 952 extending in a direction perpendicular to the electric wire straightening guide member 950 is fixed to a lower end portion of the right second electric wire straightening guide member 950 via bolts 953. That is, the racks 942 and 952 of the electric wire straightening guide members 940 and 950 are
Each wire straightening guide member 940, 950 protrudes in parallel toward the opening distance D between the wire straightening guide members 940, 950. Also, the wire straightening guide members 940, 9
The apparatus main body 910 corresponding to substantially the center of the opening distance D between the 50
A gear 980 meshing with each of the racks 942 and 952 is attached to a central portion of the rack so as to be rotatable around a horizontal axis 981. Further, from the side of the second electric wire straightening guide member 950, a rod LD1 of an air cylinder for moving the electric wire straightening guide member 950 in a direction crossing the covered electric wire W on the feed path R is connected. I have. In the figure, V1
Is a solenoid valve for controlling the supply of air to the air cylinder. The solenoid valve V1 and the air cylinder having the rod LD1 constitute a fluid pressure circuit on the side of the wire straightening guide members 940, 950.

Therefore, the solenoid valve V1 is turned on, the cylinder rod LD1 is extended, and the second electric wire straightening guide member 95 is extended.
When pressed from the side of 0, the pressing force moves the second electric wire straightening guide member 950 from right to left.
At this time, the gear 980 is connected to the second electric wire straightening guide member 95.
0 meshes with the rack 952 and rotates. Along with this,
The rack 942 of the first electric wire straightening guide member 940 is the gear 9
80, the first wire straightening guide member 940 moves from left to right. As a result, each wire straightening guide member 940, 950 moves in parallel so as to sandwich the covered electric wire W on the feed path R, and clamps the covered electric wire W on the feed path R (in the figure). This is indicated by a dashed line). On the other hand, the solenoid valve V1
Is turned off, and the cylinder rod LD1 is shortened, the electric wire straightening guide members 940 and 950 are moved in parallel in a direction away from the coated electric wire W on the feed path R and open (shown by a solid line in the drawing).

[0031] Thus, instead of opening the electric wire straightening guide member using a spring as in the prior art, the wires actuates cylinder rod LD1 (fluid pressure circuit) straightening guide <br/> de member 940 , 950 can be opened, and the electric wire straightening guide members 940, 950 are spaced apart from each other by an opening distance D that can guide the covered electric wire W inward even if the covered electric wire W is bent. Since they are arranged substantially parallel to the direction intersecting with W, the wire straightening guide members 940, 9
The opening width of the wire straightening guide members 940 and 950 can be sufficiently ensured without the opening of the wire 50 being reduced. Therefore, the feed rollers 211 and 212 are connected to the terminal T.
When sending out the wire W to which the wire is crimped in the feeding direction K, there is no problem such that the ends of the wire W hit the wire straightening guide members 940 and 950. As a result, the left and right covered wires W
The wire straightening guide members 940, 9
With 50, the bending of the electric wire W can be corrected.

The electric wire straightening guide bar 960 is for correcting the bending of the covered electric wire W in the upward direction, and the above-described feeding path is provided so as to close the opening D between the electric wire straightening guide members 940 and 950. It extends in a direction crossing the covered electric wire W on R. End of this wire straightening guide bar 960
The portion is connected to a rod LD2 of an air cylinder for moving the wire straightening guide bar 960 up and down with respect to each wire straightening guide member 940, 950. In the figure, V2 denotes an electromagnetic valve for controlling the supply of air to the air cylinder, and a fluid pressure circuit on the electric wire straightening guide bar 960 side is constituted by the electromagnetic valve V2 and an air cylinder having the rod LD2. .

Therefore, when the solenoid valve V2 is turned ON and the cylinder rod LD2 is shortened, the electric wire straightening guide bar 960
Descends and presses the covered electric wire W on the feed path R from above (indicated by a dashed line in the figure). On the other hand, the solenoid valve V2 is
F, when the cylinder rod LD2 is extended, the electric wire straightening guide bar 960 rises, and the pressing of the coated electric wire W on the feed path R is released (shown by a solid line in the figure).

As described above, the wire straightening guide bar 96 is operated only by operating the cylinder rod LD2 (fluid pressure circuit).
0 is lowered, and the covered electric wire W on the feed path R is pressed down from above, and the upward bending of the covered electric wire W can be corrected. As means for operating the electric wire straightening device 900, an encoder is provided on a main shaft portion of the electric wire processing machine, and operation timing is set by a cam positioner.

FIGS. 2 and 3 are perspective views for explaining the operation of the electric wire straightening device. FIG. 2 shows a state where the electric wire straightening guide member and the electric wire straightening guide bar are opened, and FIG. 3 shows a state where the electric wire straightening guide member and the electric wire straightening guide bar are closed. Referring to FIG.
00 is rotated by the drive shaft 630, and the first terminal crimping device 40
When the terminal crimping is completed at 0, the turning arm 600 is rotated by the drive shaft 630, returns to the position of the feed rollers 211 and 212, and the feed rollers 211 and 212 are closed to pinch the electric wire W and the feed side is closed. Transfer while measuring. At that time, the solenoid valves V1 and V2 (see FIG. 1) are turned on, and the electric wire straightening device 90
The electric wire straightening guide members 940, 950 and the electric wire guide bar 960 are changed from the open state shown in FIG. 2 to the closed state shown in FIG.

After the measurement of the electric wire W is completed, the clamp portion 710 of the index table 700 and the turning arm mechanism 600
Clamps the electric wire W, and the feed rollers 211 and 212 are opened outward from each other to release the pinching operation of the electric wire W. Thereafter, the cutting and peeling device 300 cuts the end of the measuring wire W with the cutting blade group 310, and furthermore, the clamp portion 710 of the index table 700 and the clamp pipe 612 of the revolving arm mechanism 600 operate rearward. A strip S is formed at the end of the electric wire W.

The clamp section 710 of the index table 700 and the clamp pipe 61 of the swing arm mechanism 600
2 operates backward, and the solenoid valves V1 and V2
F, the wire straightening guide member 94 of the wire straightening device 900
0, 950 and the electric wire guide bar 960 change from the closed state shown in FIG. 3 to the open state shown in FIG. As described above, the electric wire straightening guide members 940 and 950 of the electric wire straightening apparatus 900 and the electric wire straightening guide bar 960 are closed, and the covered electric wire W on the feed path R is sandwiched from three directions. Even if there is a bend, or even if the wire W has an odor phenomenon, the wire W can be connected to the wire straightening guide member 940,
The bending and the like are corrected by the 950 and the electric wire correction guide bar 960. That is, the bending of the covered wire W in the left-right direction is corrected by the wire correction guide members 940 and 950, and the bending of the covered wire W in the upward direction is corrected by the wire correction guide bar 960. Therefore, the electric wire W is forcibly guided to the center of each of the blades 311 and 312 of the cutting blade group 310, so that the electric wire strip S can be reliably performed. Further, since the electric wire W is securely held by the clamp portion 710 of the index table 700, it can be reliably transferred to the second terminal crimping device 500 in the next step.

Therefore, even if the wire measuring speed and the wire feeding speed are set to the maximum speed, the wire cutting and peeling device 3 is less affected by the winding habit, bending and odor phenomenon of the wire.
00 cutting blade group 310 and index table 700
Can be surely guided to the clamp portion 710 of FIG. As a result, the capability of the electric wire processing machine can be sufficiently exhibited.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made within the scope of the present invention.

[0040]

As is apparent from the above description, according to the wire straightening apparatus of the first aspect of the present invention, the wire straightening guide member and the wire straightening guide bar are closed to clamp the covered wire on the feed path from three directions. Accordingly, even when the wire has a curl or a bend, or when the wire has a rotting phenomenon, the wire is straightened by the wire straightening guide member and the wire straightening guide bar. For this reason, the electric wire is forcibly guided to the center of the cutting blade group of the cutting and peeling device, so that the electric wire strip can be reliably performed. Further, since the electric wire is securely held by the clamp portion of the index table, it can be reliably transferred to the terminal crimping position in the next step.

Therefore, even if the wire measuring speed and the wire feeding speed are set to the maximum speed, the influence of winding habits, bending and staking phenomenon of the wire is reduced, and the cutting blade group and index of the wire cutting / scalping device are reduced. It can be guided to the clamp portion of the table without fail. As a result, the capability of the machine can be sufficiently exhibited. In the electric wire straightening device according to the second aspect, instead of using a spring to open the electric wire straightening guide member, a fluid pressure circuit on the electric wire straightening guide member side is operated to open each electric wire straightening guide member. In addition, each wire straightening guide member is arranged substantially parallel to a direction intersecting the covered wire W on the feed path with an opening interval capable of guiding the covered wire even if the covered wire is bent. Therefore, the opening of the wire straightening guide member does not decrease, and the opening width between the wire straightening guide members can be sufficiently ensured. Therefore, when sending out the electric wire in the feeding direction, there is no problem that the end of the electric wire hits the electric wire straightening guide member. As a result, even if the bending of the covered electric wire in the left-right direction is large, the electric wire bending guide member can correct the bending of the electric wire.

Further, by merely operating the fluid pressure circuit on the electric wire straightening guide bar side, the electric wire straightening guide bar is lowered to press down the covered electric wire on the feed path from above, thereby correcting the upward bending of the covered electric wire. it can. That is, the electric wire straightening guide member and the electric wire straightening guide bar can be opened and closed with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of an electric wire straightening device according to one embodiment of the present invention.

FIG. 2 is a perspective view for explaining the operation of the electric wire straightening device, and shows a state in which an electric wire straightening guide member and an electric wire straightening guide bar are opened.

FIG. 3 is a perspective view for explaining the operation of the electric wire straightening device, and shows a state in which the electric wire straightening guide member and the electric wire straightening guide bar are closed.

FIG. 4 is a plan view showing a schematic configuration of an electric wire processing machine using the electric wire straightening apparatus according to one embodiment of the present invention, which cuts, strips, and crimps a terminal of an electric wire.

FIG. 5 is a perspective view showing an entire configuration of the electric wire processing machine.

FIG. 6 is an enlarged perspective view showing a configuration around a cutting and peeling device, and shows an open state of an electric wire straightening guide member.

FIG. 7 is an enlarged perspective view showing a configuration around the cutting and peeling device, and shows a closed state of the electric wire straightening guide member.

FIG. 8 is a front view showing a configuration of a conventional electric wire straightening device.

FIG. 9 is a diagram showing a schematic configuration of a first terminal crimping device.

FIG. 10 is a view showing a case where the electric wire is deformed by its own weight and curved by a terminal projecting from the clamp nozzle, and this electric wire is
It is a figure showing a state where it is not guided to a straightening guide member and a wire straightening device in a normal state.

FIG. 11 is a perspective view showing a state in which the electric wire straightening device cannot guide the electric wire, and shows an open state of the electric wire straightening guide member.

FIG. 12 is a perspective view showing a state where the electric wire straightening device cannot guide the electric wire, and shows a closed state of the electric wire straightening guide member.

[Explanation of symbols]

 W Electric wire 300 Cutting / scalping device 310 Cutting blade group 700 Index table 710 Clamping section 900 Wire straightening device 940,950 Wire straightening guide member 960 Wire straightening guide bar 942,952 Rack 980 Gear LD1, LD2 Cylinder rod V1, V2 Solenoid valve

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B21F 1/02 H01R 43/05-43/052 H02G 1/12 301

Claims (2)

(57) [Claims] 1. A cutting and peeling apparatus having a cutting blade group for performing cutting and covering cutting on a covered electric wire on a feed path by opening and closing motion, and a downstream side in a feeding direction from the cutting and peeling apparatus. An index for clamping the end of the covered electric wire by moving the end of the clamped electric wire to a terminal crimping position by intermittently rotating the clamp in a plane intersecting the feed path. In an electric wire processing machine equipped with a table, it is arranged between the cutting and peeling device and the index table, and corrects the bending of the covered electric wire to cut and
It is for guiding to a cutting blade group of a skin peeling device and a clamp portion of an index table, and has an opening interval capable of guiding inward even if the coated electric wire is bent, so that the coated electric wire on the feeding path is provided. A pair of left and right electric wire straightening guide members for correcting the bending of the covered electric wire in the left and right direction are arranged substantially parallel to the direction intersecting with, and are arranged above each of the above electric wire straightening guide members,
It is extended in a direction intersecting with the covered electric wire on the feed path so as to close the opening interval between the electric wire straightening guide members,
Wire straightening guide bar for correcting the bending of the covered electric wire in the upward direction, with respect to the covered electric wire of the feeding path, the opening and closing means for opening and closing movement of each wire straightening guide <br/> de member, An electric wire straightening device for an electric wire processing machine, comprising: lifting means for moving the electric wire straightening guide bar up and down with respect to the covered electric wire on the feed path. (2) The opening / closing means is provided between each of the wire straightening guide members and the wire straightening guide member.
A pair of racks projecting substantially parallel to the opening gap, and arranged at substantially the center of the opening gap between the wire straightening guide members;
A gear that rotates while meshing with each of the racks;
Connected to the electric wire straightening guide member on the
The moving member in the direction that intersects the covered wire on the feed path
A lifting / lowering means connected to the electric wire straightening guide bar, the electric wire straightening guide bar
For raising and lowering the wire with respect to each wire straightening guide member
Characterized by including a fluid pressure circuitThe electronic device according to claim 1
Wire straightening device in wire processing machine.