JPH07211427A - Electric wire straightener in electric wire processor - Google Patents

Abstract

PURPOSE:To straighten the curl, arcuation, and kink phenomena of an electric wire, even if those occur, and secure the operation of a cutting group of a cutter and stripper by closing an electric wire strengthening guide member and a wire guide bar, and catching the covered wire on a feed path from three sides. CONSTITUTION:A rack 942, which extends in the direction orthogonal to a first wire strengthening member 940 on the left, is provided right below the lock part 941 of the member 940, and it is fixed through a bolt 943. A rack 952, which extends in the direction orthogonal to a second wire strengthening member 950 on the right, is provided right below the member 950, and this is fixed through a bolt 953, too. The rod LD1 of an air cylinder for shifting it in the direction crossing the covered wire on the feed path is coupled with the member 950, and when a solenoid valve V1 for feeding air to the cylinder is turned on, a gear 980 is rotated, engaging with the rack 952 of the member 950, and accompanying this, the rack 942 of the member 940 slides on a gear 980 so as to shift the member 940 from left to right, whereby the members 940 and 950 shift in parallel while catching the cable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire processing machine in which electric wires are cut to size, peeled, and terminals are crimped, and the bending of the electric wires on the feeding path is corrected to cut the cutting / peeling device. The present invention relates to an electric wire straightening device for correctly guiding an electric wire to a clamp part of a blade group and an index table.

[0002]

2. Description of the Related Art Conventionally, there is an electric wire processing machine in which an electric wire is cut to size, stripped, and terminals are crimped at both ends. FIG. 5: is a perspective view which shows the whole structure of an electric wire processing machine. Referring to the figure, this type of electric wire processing machine D is provided with a constant-size feeding device 1, a cutting / peeling device 2, a first terminal crimping device 3 and a second terminal crimping device 4. There is.

A coated electric wire W provided to the electric wire processing machine D.
First, in the constant-size feeding device 1, the bending tendency is corrected, and the transport amount (the length of the wire to be fed) is measured. Therefore, in the constant-size feeding device 1, the horizontal straightener 11 and the vertical straightener 12 for correcting the bending tendency of the electric wire W, the first electric wire feeding roller 13, and the first electric wire feeding roller 13 A two-wire feeding roller 14 is provided. Further, an encoder (not shown) is connected to the second electric wire feeding roller 14 so that the conveyance amount of the electric wire W can be measured.

The coated electric wire W sent by the constant-size feeding device 1 is given to the cutting / stripping device 2 and cut at a predetermined timing so as to have a predetermined length. Further, the insulation coating on the front and rear ends of the cut electric wire is removed. Then, the tip of the electric wire from which the insulating coating is removed is applied to the first terminal crimping device 3 by the turning arm mechanism 5, and the terminal is crimped. Further, the rear end of the electric wire from which the insulating coating is removed is applied to the second terminal crimping device 4 by an index table not shown in the figure, and the terminal is crimped.

6 and 7 are enlarged perspective views showing the structure around the cutting and peeling device. With reference to these drawings, the cutting / stripping device 2 is provided with a covered electric wire W on the feeding path.
On the other hand, a cutting blade group 21 that performs cutting and covering cutting by opening and closing movement is provided. This cutting blade group 21
Includes a pair of cutting blades 21a and a pair of strip blades 21b arranged before and after the cutting blade 21a in the feeding direction. After the cutting by the cutting blade 21a and the strip blade 21b, the clamp portion 51 of the turning arm mechanism 5 is moved back and forth to peel off the covering 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 / peeling device 2 and the index table 6. The electric wire straightening device 8 is arranged on the downstream side of the electric wire guide member 7 in the feeding direction, and corrects the bending or the like of the covered electric wire W and cuts it.
It guides the centers of the blades 21a and 21b of the peeling device 2 and the clamp portion 61 of the index table 6.

FIG. 8 is a front view showing the structure of a conventional wire straightening device. Referring to the figure, the electric wire straightening device 8 includes:
A pair of electric wire straightening guide members 84 and 85, which 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 hold the electric wire W, and are coaxially rotatably attached to the respective horizontal shafts 82 and 83, A pair of gears 8 that mesh with each other and rotate
6, 87, and the spring 8 interposed between the lower end of the electric wire straightening guide member 84 on the left side in the figure and the cam mechanism 88.
And 9 are provided. Then, the electric wire straightening device 8 operates the cam mechanism 88 to the left side in the drawing to pull the lower end of the electric wire straightening guide member 84 connected to the cam mechanism 88, and in conjunction with this, the electric wire straightening guide member 84, 8
5 is closed (indicated by a chain line in the figure), and when the cam mechanism 88 is returned to its original position, the electric wire straightening guide member 8 is interlocked with this.
4, 85 are opened (shown by the solid line in the figure). The spring 89 has a function of protecting the coating of the electric wire W from being damaged when the electric wire W is sandwiched between the electric wire straightening guide members 84 and 85.

Therefore, the electric wire feeding roller 13,
When the feeding of the wire W in the feeding direction is completed by 14, the power of the cam mechanism 88 closes the wire straightening guide members 84 and 85 of the wire straightening device 8 (see FIG. 7). Before the clamp portion 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 swivel arm mechanism 5 described above.
As shown in FIGS. 6 and 7, the swing arm 52 rotatably supported around a drive shaft (not shown) and the swing arm 5 are provided.
2, a clamp main body 51a fixed to the tip of the wire 2, a clamp pipe 51b fixed to the clamp main body 51a and penetrating the electric wire W, and a cutting blade of the electric wire W arranged at the end of the clamp pipe 51b on the feeding 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 portion 51. Then, the revolving arm mechanism 5 rotates the revolving arm 52 around the drive shaft, and the clamp pipe 51b and the clamp nozzle 51c at the tip of the revolving arm 52 together with the electric wire W,
The first terminal crimping device 3 (not shown) is transferred. Due to this relationship, as shown in FIG. 9, in the first terminal crimping device 3, one end of the clamp nozzle 51c of the swing arm 52 interferes between the anvil 31 and the crimper 32 that moves vertically with respect to the anvil 31. In order not to do so, 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 crimping the strip S of the electric wire W and the terminal T, the clamp pipe 51b and the clamp nozzle 51c of the swivel arm 52 are moved to the original position together with the electric wire W. When the wire feed rollers 13 and 14 send the wire W crimped to the terminal T in the feeding direction, the wire W is deformed by its own weight and bent by the terminal T protruding from the clamp nozzle 51c. , The electric wire W is not normally guided to the electric wire guide member 7 and the electric wire straightening device 8. Therefore, it is difficult for the clamp portion 61 of the index table 6 to hold the electric wire W.

The wire feeding rollers 13 and 14 are also provided.
When sending out the electric wire W crimped to the terminal T in the feeding direction,
The winding tendency of the coiled electric wire W appears, and the end portion of the electric wire W is curved and sent out in the vertical or horizontal direction. Therefore, as shown in FIGS. 11 and 12, the electric wire W is not normally guided to the electric wire guide member 7 and the electric wire straightening device 8. As a result, it is difficult for the clamp portion 61 of the index table 6 to hold the electric wire W.

On the other hand, referring to FIG. 8, when the spring 89 of the wire straightening device 8 is so-called settled, the opening of the wire straightening guide members 84 and 85 is reduced. Therefore, when the electric wire feeding rollers 13 and 14 send the electric wire W to which the terminal T is crimped forward, the electric wire straightening guide members 84 and 8
5 occurs, and as a result, it is difficult to hold the wire W by the clamp portion 61 of the index table 6.

Further, since the wire feeding rollers 13 and 14 suddenly stop at the time when the wire W is completely fed, a so-called "wrinkle phenomenon" of the wire W occurs from the clamp nozzle 51c. As a result, as shown in FIGS. 11 and 12, the blade is not normally guided to the center of each blade 21a, 21b of the cutting / stripping device 2. In this way, the measuring wire W is not guided to the cutting / stripping device 2 in a normal state, and the end of the wire is cut by the strip blade 21b and the cutting blade 21a.
When stripped, there is a problem of no core wire or broken core wire, and the terminals cannot be crimped in a normal state.

In particular, the above series of problems is caused by the wire measuring speed,
It becomes noticeable when the wire feeding speed is brought close to the maximum. Therefore, the wire measuring speed and the wire feeding speed cannot be brought close to the maximum, and the wire is currently processed at half the speed of the machine. The present invention has been made in view of the above technical problems, and even if there is a winding tendency of the electric wire, bending, or an odri phenomenon, the electric wire can be forcibly guided to the cutting / peeling device and the index table, and the ability of the machine is improved. An object of the present invention is to provide an electric wire straightening device that can be sufficiently exerted.

[0015]

In order to achieve the above object, an electric wire straightening apparatus according to claim 1 of the present invention is a group of cutting blades for cutting and covering a covered electric wire on a feeding path by an opening / closing motion. It has a cutting / stripping device and a clamp part that clamps the end of the covered wire on the downstream side of the cutting / stripping device in the feeding direction, and this clamping part is in the plane intersecting the feeding path. In an electric wire processing machine equipped with an index table that intermittently rotates and moves the clamped end of the electric wire to a terminal crimping position, the electric wire processing machine is arranged between the cutting / peeling device and the index table, and An opening interval for correcting the bend and guiding it to the cutting blade group of the cutting / stripping device and the clamp part of the index table, which can be guided inward even if the covered electric wire is bent. A pair of left and right electric wire straightening guide members, which are arranged substantially parallel to a direction intersecting with the covered electric wire on the feeding path and correct the bending of the covered electric wire in the left-right direction, above the electric wire straightening guide members. And is extended in a direction intersecting with the covered electric wire on the feeding path so as to close the opening space between the electric wire straightening guide members, and for correcting the upward bending of the covered electric wire. Electric wire straightening guide bar, for coated electric wires on the above feeding path,
It is characterized in that it includes an opening / closing means for opening / closing each of the electric wire guide members in a substantially parallel manner, and an elevating means for vertically moving the electric wire guide bar with respect to the covered electric wire on the feeding path. .

An electric wire straightening device according to a second aspect of the present invention is the first aspect of the present invention.
In the electric wire straightening device described above, the opening / closing means includes a pair of racks projecting from the respective electric wire straightening guide members substantially in parallel toward an opening space between the electric wire straightening guide members, and an opening space between the electric wire straightening guide members. Is connected to the gear that rotates in mesh with each of the racks and the wire straightening guide member on the one side, and moves the wire straightening guide member in the direction intersecting the covered wire on the feeding path. And a fluid pressure circuit for raising and lowering the electric wire straightening guide bar with respect to each of the electric wire straightening guide members. To do.

[0017]

In the electric wire straightening device according to claim 1, when the coated electric wire on the feeding path is guided to the cutting blade group of the cutting / stripping device and the clamp portion of the index table, each electric wire straightening guide member is opened and closed by the opening / closing means. And at the same time, the wire straightening bar is lowered by the elevating means. Then, each electric wire straightening guide member corrects the horizontal bending of the covered electric wire, and the electric wire straightening guide bar corrects the upward bending of the covered electric wire.

As described above, when the electric wire straightening guide member and the electric wire guide bar are closed to sandwich the covered electric wire on the feeding path from three directions, when the electric wire has a winding tendency or a bend, or the electric wire has an odor phenomenon. Even if it comes out, the electric wire is
The bend and the like are corrected by the wire correction guide member and the wire guide bar. Therefore, the electric wire is forcibly guided to the center of the cutting blade group of the cutting / stripping device, so that the electric wire can be surely stripped. Also, since the wire is securely gripped by the clamp part of the index table,
It can be reliably transferred to the terminal crimping position in the next step.

Therefore, even if the wire length measuring speed and wire feeding speed are set to the maximum speed, the influence of the winding tendency, bending, and dripping phenomenon of the wire is reduced, and the cutting blade group and index of the wire cutting / peeling device are reduced. The table can be reliably guided to the clamp part. As a result, the capacity of the machine can be fully exerted. In the electric wire straightening device according to claim 2, when the fluid pressure circuit on the electric wire straightening guide member side is operated and moved by the electric wire straightening guide member on one side in the direction intersecting with the covered electric wire on the feeding path, each electric wire guide member is , It opens and closes in parallel with the covered electric wire on the feeding path.

As described above, each wire guide member can be opened by operating the fluid pressure circuit, instead of opening the wire straightening guide member by using the spring as in the prior art. Since the members are arranged substantially parallel to each other in the direction intersecting with the covered electric wire W on the feeding path with an opening interval that allows the member to be guided inward even if the covered electric wire is bent, the opening of the electric wire straightening guide member can be prevented. The opening width between the electric wire straightening guide members can be sufficiently secured without decreasing. Therefore, when the electric wire is sent out in the feeding direction, there is no problem that the end portion 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 bending of the electric wire can be corrected by the electric wire correction guide member.

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 simply operating the fluid pressure circuit, the wire straightening guide bar descends, and the covered wire on the feeding path is pressed from above, and the upward bending of the covered wire can be corrected.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will now be described with reference to the accompanying drawings.
The details will be described. FIG. 4 is an electric wire according to an embodiment of the present invention.
Cutting and stripping of electric wires in electric wire processing machines that use straightening devices
FIG. 6 is a plan view showing a schematic configuration of a terminal crimping portion. The same figure
Refer to this wire processing machine
The covered electric wire W sent from the take-out roller is moved downward on the paper surface.
A pair of feeding rollers feeding along a feeding path R extending in the direction
211, 212 and the covered electric wire W on the feeding path R
Cutting and peeling device 300 for cutting and peeling, and feeding
Located on the side of the cutting and peeling device 300 with the path R sandwiched
Placed first and second terminal crimping devices 400, 500,
Electric power is supplied on the upstream side of the feeding method K from the cutting and peeling device 300.
It has a clamp part 610 for clamping the wire W.
The pump section 610 is rotated in a plane orthogonal to the feeding path R to turn on the electric power.
Tip W of line W _aTo the first terminal crimping device 400
Revolving arm mechanism 600 and cutting / stripping device 300
The rear end W of the electric wire W on the downstream side of the feeding direction K_bThe clan
Has a plurality of clamp portions 710 for
10 is intermittently rotated in a plane orthogonal to the feeding path R to generate electric power.
Rear end W of line W_bThe second terminal crimping device 500 and the discharge part
(Not shown) Index table 70 to be moved
0, index table 700, cutting and peeling
A frustoconical electric wire guide port 8 that is arranged between the device 300 and
Wire guide member 800 having 10 and wire straightening device 9
00 and are provided.

The cutting / stripping device 300 is provided with a cutting blade group 310 for cutting and covering the coated electric wire W on the feeding path R by opening and closing. 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.
It has and. After the cutting by the cutting blade 311 and the strip blade 312, the clamp portion 610 of the swing 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, 500
Are the bases 410 and 510 fixed to the machine frame, and the base 41
Anvil 420,520 attached to 0,510
And a crimper (not shown) that is arranged above the anvils 420 and 520 and moves up and down with respect to the anvils 420 and 520. In this terminal crimping device 400, 500, while crimping a plurality of connected terminals T to the strip S of the electric wire W one by one, the terminal T and the subsequent connected terminal row are cut off. .

A pair of pivot arm mechanisms 600 are arranged along the direction of the paper surface, and a column 620 fixed to the machine frame.
And the drive shaft 6 rotatably supported by the pillar 620.
30, and an arm 640 whose base end is integrally rotatable with the drive shaft 630 and is relatively movable in the axial direction.
The clamp portion 61 fixed to the tip portion of the arm 640.
0, a rotation mechanism (not shown) for rotating the clamp part 610 within a predetermined angle range via the drive shaft 630 and the arm 640, and an arm for stripping the end of the cut electric wire W. 640 and the clamp part 610 to the feeding 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 tip of the arm 640, and a clamp body 6.
Clamp pipe 6 fixed to 11 and penetrating the electric wire W
12, a clamp nozzle 613 arranged at the end of the clamp pipe 612 on the feeding direction K side and guiding the feeding of the electric wire W to the cutting blade group 310, and slidably supported by the clamp body 611. A clamp plate (not shown) is provided which moves from the peripheral portion of 612 into the clamp pipe 612 to hold the electric wire W and to move back to release the electric wire W. The clamp plate is advanced and retracted by a cam mechanism (not shown).

The wire straightening device 900 includes a wire guide member 8
00 is arranged on the downstream side of the feeding direction K of 00, and the covered electric wire W
Of the cutting blades 310 of the cutting / stripping device 300 and the clamp portion 7 of the index table 700 by correcting the bending of the
Guide to 10. The detailed configuration of the wire straightening device 900 will be described later. In the above electric wire processing machine, FIG.
From the state shown in, the cutting blade group 3 of the cutting and peeling device 300
The electric wire W is cut by 10 and the swing arm mechanism 600
Also, the peeling process is performed by moving the index table 700 in the front-rear direction. Then, the tip end portion W _a of the electric wire W on the upstream side in the feeding direction K with respect to the cutting blade group 310 is moved to the first terminal crimping device 400 to crimp the terminal.
Then, the rear end portion W _b of the electric wire W on the downstream side in the feeding direction K with respect to the cutting blade group 310 is moved to the second terminal crimping device 500 and the terminals are crimped. Then, the tip W of the wire W
_a is returned to the feeding path R again. After that, cutting blade group 3
10, the electric wire W on the upstream side in the feeding direction K is fed to the feeding path R
The paper is fed along the line and returns to the state shown in FIG. In the above process, the electric wire W moved to the second terminal crimping device 500 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 structure of an electric wire straightening device according to an embodiment of the present invention. Referring to the figure, the electric wire straightening device 900 of the present embodiment has a pair of left and right support blocks 921 attached to the front surface of the electric wire straightening device main body 910.
922, a pair of upper and lower guide shafts 931 and 932 bridged in parallel between the support blocks 921 and 922, and a pair of left and right electric wire straightening guide members 940 and 95 attached so as to be openable and closable along the respective guide shafts 931 and 932.
0, and an electric wire straightening guide bar 960 which is arranged above the electric wire straightening guide members 940 and 950 and which can be moved up and down with respect to the electric 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, respectively. The electric wire straightening guide members 940, 950 are for correcting the bending of the covered electric wire W in the left-right direction, and even if the covered electric wire W is bent, an opening interval D that can guide the inside
And are arranged substantially parallel to the direction crossing the covered electric wire W on the feeding path R. This wire straightening guide member 9
40 and 950 are elongated in the vertical direction so as to project above the cutting blade group 310 located at the upper position of the device body 910, and the locking portions 941 and 951 projecting upward from the device body 910. The inner surface of the is cut into a predetermined shape so that the electric wire W is locked and the coating of the electric wire W is not damaged. A rack 942 extending in a direction orthogonal to the electric wire straightening guide member 940 is provided at a substantially central portion (immediately below the locking portion 941) of the first electric wire straightening guide member 940 on the left side in the drawing.
Are fixed via bolts 943. A rack 952 extending in a direction orthogonal 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 a bolt 953. That is, the racks 942 and 952 of the electric wire straightening guide members 940 and 950 are
The wire straightening guide members 940 and 950 are provided so as to project in parallel from each other toward the opening distance D between the wire straightening guide members 940 and 950. In addition, wire straightening guide members 940, 9
A device main body 910 corresponding to approximately the center of the opening distance D between the 50
A gear 980 that meshes with the racks 942 and 952 is rotatably attached to the central portion of the shaft about 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 intersecting with the covered electric wire W on the feeding path R is connected. There is. In the figure, V1
Is a solenoid valve for controlling the supply of air to the air cylinder, and the air cylinder having the solenoid valve V1 and the rod LD1 constitutes 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 wire straightening guide member 95 is formed.
When pressed from the side of 0, the pressing force moves the second wire straightening guide member 950 from the right side to the left side.
At this time, the gear 980 moves the second electric wire straightening guide member 95.
The rack 952 of 0 meshes and rotates. With this,
The rack 942 of the first electric wire straightening guide member 940 has the gear 9
Sliding on 80, the first electric wire straightening guide member 940 moves from the left side to the right side. As a result, the electric wire guide members 940 and 950 move in parallel so as to sandwich the covered electric wire W on the feed path R and hold the covered electric wire W on the feed path R (indicated by a chain line in the figure). . On the other hand, turn on the solenoid valve V1
When FF is performed and the cylinder rod LD1 is shortened, the electric wire guide members 940 and 950 move in parallel in the direction away from the covered electric wire W on the feeding path R and open (shown by solid lines in the figure).

As described above, the electric wire straightening guide member is not opened by using a spring as in the prior art, but the electric wire guide members 940 and 950 are opened by operating the cylinder rod LD1 (fluid pressure circuit). In addition, the wire straightening guide members 940 and 950 can be guided inward even if the coated electric wire W is bent, and an opening space D is provided between the electric wire straightening guide members 940 and 950 in a direction intersecting the covered electric wire W on the feeding path R. Since the wire straightening guide members 940 and 950 are arranged substantially parallel to each other, the opening of the wire straightening guide members 940 and 950 does not decrease, and the wire straightening guide member 94 is provided.
A sufficient opening width between 0 and 950 can be secured.
Therefore, when the feeding rollers 211 and 212 feed out the electric wire W to which the terminal T is crimped in the feeding direction K side, there is no problem that the end portion of the electric wire W hits the electric wire straightening guide members 940 and 950. As a result, even if the bending of the covered electric wire W in the left-right direction is large, the bending of the electric wire W can be corrected by the electric wire correction guide members 940 and 950.

The wire straightening guide bar 960 is for straightening the bending of the covered wire W in the upward direction, and the feeding path is provided so as to close the opening space D between the wire straightening guide members 940 and 950. It extends in a direction intersecting with the covered electric wire W on the R. An end of the wire straightening guide bar 960 is connected to a rod LD2 of an air cylinder for moving the wire straightening guide bar 960 up and down with respect to the wire straightening guide members 940 and 950. In addition, V2 in the figure
Is a solenoid valve that controls 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 solenoid valve V2 and the air cylinder having the rod LD2.

Therefore, when the solenoid valve V2 is turned on and the cylinder rod LD2 is shortened, the wire straightening guide bar 960
Moves down and presses the covered electric wire W on the feeding path R from above (indicated by a chain line in the figure). On the other hand, open the solenoid valve V2
Then, when the cylinder rod LD2 is extended, the electric wire straightening guide bar 960 rises, and the pressing of the covered electric wire W on the feeding path R is released (shown by a solid line in the figure).

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

2 and 3 are perspective views for explaining the operation of the wire straightening device. 2 shows a state in which the wire straightening guide member and the wire straightening guide bar are opened, and FIG. 3 shows a state in which the wire straightening guide member and the wire straightening guide bar are closed. With reference to FIG. 4, the swing arm 6
00 is rotated by the drive shaft 630, and the first terminal crimping device 40
When the terminal crimping is completed at 0, the revolving arm 600 is rotated by the drive shaft 630 and returns to the position of the feeding rollers 211 and 212, the feeding rollers 211 and 212 are closed and the electric wire W is sandwiched, and the feeding side. Transfer while measuring to. At that time, the solenoid valves V1 and V2 (see FIG. 1) are turned on, and the wire straightening device 90
The electric wire straightening guide members 940 and 950 and the electric wire guide bar 960 of 0 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 swing arm mechanism 600.
The clamp pipe 612 grips the electric wire W, and the feeding rollers 211 and 212 open outwardly to release the clamping operation of the electric wire W. After that, the cutting / stripping device 300 cuts the end portion of the measuring wire W with the cutting blade group 310, and further, the clamp portion 710 of the index table 700 and the clamp pipe 612 of the turning arm mechanism 600 are moved backward, The strip S is formed at the end of the electric wire W.

The clamp portion 710 of the index table 700 and the clamp pipe 61 of the turning arm mechanism 600.
2 moves backward, and at the same time, the solenoid valves V1 and V2 are OF
The wire straightening guide member 94 of the wire straightening device 900
0 and 950 and the electric wire guide bar 960 are changed from the closed state shown in FIG. 3 to the open state shown in FIG. In this way, the electric wire straightening guide members 940 and 950 and the electric wire guide bar 960 of the electric wire straightening device 900 are closed to sandwich the covered electric wire W on the feeding path R from three directions, whereby the electric wire W is curled and bent. Even if there is a wire, or even if the wire W has an odor phenomenon, the wire W is not guided by the wire straightening guide members 940, 95.
0 and the electric wire guide bar 960 correct the bend and the like. That is, the bending of the covered electric wire W in the left-right direction is corrected by the electric wire correction guide members 940 and 950, and the bending of the covered electric wire W in the upward direction is corrected by the electric wire guide bar 960. Therefore, the electric wire W is forcibly cut by the cutting blade group 3
As a result of being guided to the centers of the respective blades 311 and 312 of 10, the electric wire strip S can be surely performed. Further, since the electric wire W is securely gripped by the clamp portion 710 of the index table 700, the second terminal crimping device 50 in the next step
It can be reliably transferred to 0.

Therefore, even if the wire length measuring speed and wire feeding speed are set to the maximum speed, the influence of the winding tendency, bending, and dripping phenomenon of the wire is reduced, and the wire cutting / peeling device 3
00 cutting blade group 310 and index table 700
It is possible to surely guide to the clamp portion 710. As a result, the capacity of the wire processing machine can be fully exerted.

The present invention is not limited to the above 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 electric wire straightening device of the first aspect of the present invention, the electric wire straightening guide member and the electric wire guide bar are closed to sandwich the covered electric wire on the feeding path from three directions. Thus, even if the electric wire has a curl or a bend, or if the electric wire has an odor phenomenon, the electric wire is corrected by the electric wire straightening guide member and the electric wire guide bar. Therefore, the electric wire is forcibly guided to the center of the cutting blade group of the cutting / stripping device, so that the electric wire can be surely stripped. Further, since the electric wire is securely gripped 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 length measuring speed and wire feeding speed are set to the maximum speed, the effects of the winding tendency, bending, and dripping phenomenon of the wire are reduced, and the cutting blade group and index of the wire cutting / peeling device are reduced. The table can be reliably guided to the clamp part. As a result, the capacity of the machine can be fully exerted. In the wire straightening device according to claim 2, instead of using a spring to open the wire straightening guide member as in the related art, a fluid pressure circuit on the wire straightening guide member side is operated to open each wire guiding member. In addition, since the electric wire straightening guide members are arranged substantially parallel to each other in the direction intersecting with the covered electric wire W on the feeding path, with an opening interval that can guide the inside even if the covered electric wire is bent. The opening of the wire straightening guide member does not decrease, and the opening width between the wire straightening guide members can be sufficiently secured. Therefore, when the electric wire is sent out in the feeding direction, there is no problem that the end portion 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 bending of the electric wire can be corrected by the electric wire correction guide member.

Further, the wire straightening guide bar is lowered only by actuating the fluid pressure circuit on the wire straightening guide bar side, and the covered wire on the feeding path is pressed from above to straighten the upward bending of the 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 drawings]

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

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

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

FIG. 4 is a plan view showing a schematic configuration of an electric wire cutting, stripping, and terminal crimping portion of an electric wire processing machine in which an electric wire straightening device according to an embodiment of the present invention is used.

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

FIG. 6 is an enlarged perspective view showing the configuration around the cutting / peeling device, showing an open state of the wire straightening guide member.

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

FIG. 8 is a front view showing the configuration of a conventional 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 state in which the electric wire is not guided to the electric wire guide member and the electric wire straightening device in a normal state when the electric wire is deformed by its own weight and bent by the terminal protruding from the clamp nozzle.

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

FIG. 12 is a perspective view showing a state in which the electric wire cannot be guided by the electric wire straightening device and shows a closed state of the electric wire straightening guide member.

[Explanation of symbols]

 W electric wire 300 cutting / peeling device 310 cutting blade group 700 index table 710 clamp part 900 electric wire straightening device 940, 950 electric wire straightening guide member 960 electric wire straightening guide bar 942, 952 rack 980 gear LD1, LD2 cylinder rod V1, V2 solenoid valve

Claims (2)

[Claims] 1. A cutting / peeling device having a group of cutting blades for cutting and covering a coated electric wire on a feeding path by opening / closing motion, and a downstream side of the cutting / peeling device in the feeding direction. An index for moving the end of the clamped wire to the terminal crimping position by having a clamp part that clamps the end of the covered electric wire with this, and rotating this clamp part intermittently in the plane intersecting the feeding path. In an electric wire processing machine equipped with a table, it is arranged between the cutting / stripping device and the index table to correct the bending of the covered electric wire for cutting / cutting.
It is for guiding to the cutting blade group of the peeling device and the clamp portion of the index table, and even if the coated electric wire is bent, there is an opening interval that can be guided inward, and the coated electric wire on the feed path is provided. And 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, which are arranged substantially parallel to the direction intersecting with the electric wire straightening guide member, and
It is extended in a direction intersecting with the covered electric wire on the feeding path so as to be able to close the opening interval between the electric wire straightening guide members,
An electric wire straightening guide bar for correcting the bending of the covered electric wire in the upward direction, an opening / closing means for opening and closing the electric wire guide members substantially parallel to the covered electric wire on the feeding path, and the feeding An electric wire straightening device in an electric wire processing machine, which comprises an elevating means for elevating the electric wire guide bar with respect to a covered electric wire on a road. 2. The electric wire straightening device for an electric wire processing machine according to claim 1, wherein the opening / closing means is provided in a pair so as to project substantially parallel from the electric wire straightening guide members toward an opening interval between the electric wire straightening guide members. Rack, a gear that is arranged substantially at the center of the opening distance between the electric wire straightening guide members, is rotated by meshing with each of the racks, and is connected to the one side electric wire straightening guide member. A fluid pressure circuit for moving in a direction intersecting with the covered electric wire on the feeding path is included, and the elevating means is connected to the electric wire straightening guide bar, and the electric wire straightening guide bar is moved up and down with respect to each of the electric wire straightening guide members. It is characterized by including a fluid pressure circuit for operating.