JPH038217A - Manufacturing device for harness - Google Patents

Abstract

PURPOSE:To make the intermediate sheath stripping process of each of cables without causing any ununiformity in the bare size of a bared core-wire by moving the cable along its longitudinal direction with the aid of both clamping means in such a condition that each of severing, cutting-in and cleaving cutters has been cut into the sheath portion of the cable on one-end side of an intermediate sheath stripping region. CONSTITUTION:When each of severing, cutting-in and cleaving cutters 103 is set open, each of a first clamp 200 and a second clamp 300 is moved by a specified amount in its left-hand direction, so that cables 600a, 600b are arranged respectively on their corresponding cable feed lines Xa, Xb. As a result of this, the head of each of the severing, cutting-in and cleaving cutters 103 is arranged to correspond with the position of an end portion on the downstream side of each of regions of the cables 600a, 600b intended both to make their corresponding intermediate sheath stripping processes. When each of the cutters 103 is set closed, it then cuts into the entire circumference of the sheath of each of the cables 600a, 600b at the end portion on the downstream side of the region of the cable intended to make the intermediate sheath stripping process until it reaches the core wire of the cable. With keeping this cut-in condition, the first clamp 200 and the second clamp 300 are each moved a specified amount forward. Thus, each of the cutters strips a sheath portion as the region of the cable, intended to make the intermediate sheath stripping process, off the cable in sequence from the downstream side of the sheath portion to the upstream side.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a harness manufacturing apparatus that has a function of stripping an intermediate portion of an electric wire in addition to processing the ends of the electric wire.

(Prior Art) FIG. 22 is a schematic side view showing a conventional harness manufacturing apparatus, and FIG. 23 is a perspective view of the main parts thereof. This harness manufacturing apparatus is an apparatus that sequentially manufactures harnesses in which the covering portions of both ends are peeled off, and terminals are crimped to the peeled ends.

As shown in both figures, along the wire feeding line X, the wire feeding means 1. A first clamp 2 that can freely grip and release the electric wire 10
．． A cutter 3 and a second clamp 4 capable of gripping and releasing the electric wire 10 are arranged in this order.

In this device, first, in a state where the first clamp 2 is released from gripping the electric wire 10, the electric wire feeding means 1
is fed along the wire feed line X in the direction of arrow P.

Subsequently, after the electric wire 10 is gripped by both clamps 2.degree. 4, the electric wire 10 is cut by the cutter 3. Next, is the first clamp 2 an arrow? The cutter 3 cuts the covering part of the remaining wire 10 that has been moved forward by a predetermined amount in the 7P direction and is gripped thereon, on the downstream side in the wire feeding direction P, and in this state, the first clamp 2 is moved back to remove the remaining wire 10. The covering portion of the downstream end of the electric wire 10 is stripped off. After that, the first clamp 2 is moved in the horizontal direction (the 23rd
22 and 23), the terminal 6 is crimped to the stripped end of the remaining electric wire 10 on the downstream side by a terminal crimping means (not shown), and then returned to the original position shown in FIGS. 22 and 23. return.

On the other hand, while the terminal 6 is being crimped to the remaining electric wire 10, the second
The clamp 4 is moved back by a predetermined distance in the direction of the arrow Q, and the sheathing part of the cut wire held thereon on the upstream side with respect to the wire feeding direction P is cut by the cutter 3, and the clamp 4 is moved in the direction of the arrow P in that state. By moving forward, the covering portion on the upstream side of the cut wire is stripped off. Thereafter, the second clamp 4 is moved in the horizontal direction indicated by the arrow S, and the terminal is crimped to the upstream stripped end of the Reno power cut wire by a terminal crimping means (not shown).

Subsequently, the cut wire (harness) is transferred from the second clamp 4 to a discharge means (not shown) and discharged to a predetermined location.

On the other hand, the second clamp 4 returns to the original position shown in FIGS. 22 and 23 after delivering the cut wire to the ejection means. This operation is continuously repeated to sequentially manufacture harnesses having terminals crimped at both ends.

(Problems to be Solved by the Invention) By the way, there are many types of harnesses, and one of them is a harness 11 as shown in FIG. 24.

This harness 11 has the covering portions at both ends peeled off, and the ends -f'-12 and 12 are crimped to the peeled ends, respectively, and an intermediate strip area in which the core wire 13 is exposed to the outside in the central area. 14 is formed.

In order to manufacture such a harness 11 using the conventional harness manufacturing apparatus described above, the following procedure can be considered, for example. The coating stripping process and the terminal crimping process at both ends of the harness 11 are performed in the same manner as in the two-legged operation, so only the procedure for forming the intermediate strip region 14 will be described below.

That is, as shown in FIG. 25, the electric wire 10 is held by both clamps 2.4, and the cutter 3 is cut into the covering portion of the electric wire 10 at approximately the center of the area where the intermediate stripping is to be performed. In this cut state, as shown in FIG. 26, both clamps 2 and 4 are moved in the direction of arrow P, and the electric wire 10 is advanced along its longitudinal direction. Subsequently, as shown in FIG. 27, both clamps 2.4 are moved in the direction of arrow Q to retreat the electric wire 10 along its longitudinal direction. As a result, the covering portion in the area where the intermediate strip is planned is compressed in the front and rear directions, thereby forming the intermediate strip area 14 in which the core wire 13 is exposed.

In this manner, in the conventional harness manufacturing apparatus, when forming the intermediate strip region 14, the covering portion of the electric wire 10 in the intermediate strip area is compressed back and forth, so that the covering portion elastically recovers over time. However, there is a problem in that the exposed dimension of the core wire 13 in the intermediate strip region 14 in the longitudinal direction (hereinafter referred to as "exposed core wire dimension") becomes smaller over time, resulting in variations in the exposed dimension of the core wire in the intermediate strip region 14.

(Object of the Invention) The present invention has been made based on the above-mentioned viewpoint, and an object of the present invention is to provide a harness manufacturing apparatus that can perform intermediate strip processing without causing variations in core wire exposure dimensions.

(Means for Achieving the Object) The present invention includes a wire feeding means that feeds an electric wire along an electric wire feeding line, and a wire feeding means that feeds an electric wire along a wire feeding line, and a wire feeding means that feeds an electric wire along a wire feeding line, and a wire feeding means that feeds an electric wire along a wire feeding line. It has first and second clamping means that are movable in the dimensional direction, and a pair of cutting/cutting cutters that cut the electric wire clamped by the first and second clamping means or cut into the covering part thereof. In order to achieve the above object, a harness manufacturing apparatus is provided, in which a cutting cutter is arranged on the virtual plane,
The electric wires transferred by the electric wire feeding means to predetermined first and second positions on the electric wire feeding line are gripped by both the clamping means, and the intermediate strip of the electric wire is cut by the cutting/slitting cutter. Cut control means for making cuts in the covering portions on one end side and the other end side of the region, respectively;
The electric wire is moved to the cutting cutter position by both clamping means, and with the cutting cutter cutting into the coating on one end side of the intermediate strip area, the electric wire is cut along its longitudinal direction by the clamping means. A cutting control means is provided which forms a slit-like cut groove from one end side to the other end side of the intermediate strip region by moving it along the direction.

(Example) Fig. 1 is a perspective view showing a harness manufacturing apparatus which is an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view thereof, and Fig. 4 is a perspective view of the main parts thereof. be.

As shown in these figures, this device is almost composed of a harness manufacturing device (Patent Application No. 106014 filed in 1988) that has already been filed by the applicant of the present application, and is capable of simultaneously and intermittently connecting two electric wires 600a and 600b. a wire feeding means 50, a cutter part 100, and first and second clamp means 250.35, which are movable in three-dimensional directions and can grip and release the wires 600a and 600b, respectively.
0, first and second terminal crimping means 400, 500,
and a discharge means 550.

The wire feeding means 50 includes a pair of upper and lower conveying sections 51-. with the wire feeding line Xaxb in between. 51 is provided, and both conveyance sections 51. , 51 are configured to be able to swing freely around the rotating shaft of a length measuring roller 5252 pivotally connected to one end of each. Then, the two electric wires 6 are connected to the feed rollers 53, 53, which are pivotally connected to the other ends of both the conveying sections 51 and 51, respectively.
00a.

When the electric wire feeding motor 60 (FIG. 3) is driven with both conveying parts 51, 51 oscillated so as to sandwich the wire 600b, both feeding rollers 53, 53 rotate in opposite directions.
The two electric wires 600a and 600b are configured to be simultaneously fed in the direction of arrow P along the wire feeding lines Xs and Xb.

The first and second clamp means 250.35'0 are first and second clamps 200, 300 that can grip and release electric wires 600a, 600b, respectively, and first and second clamps 200, 300, respectively, in a three-dimensional direction. First and second clamp moving means 251.3 movably supported by
51. In the first and second clamp moving means 251 and 351, left and right moving parts 202 and 302 are supported by bases 201 and 301, respectively, so as to be movable in the left and right directions indicated by arrows R and S.
, 302, the front and rear moving parts 203303 are respectively indicated by arrows P,
Each is supported so as to be movable in the front and back direction shown in Q. Further, the first and second clamps 200, 300 are connected to the front-back moving part 203. ．． It is supported at 303 so that it can move up and down in the up and down directions shown by arrows T and U. In addition, the left and right moving parts 202 and 302
are the bases 201, . The power transmission mechanism 20 is driven by the motors 204 and 304 respectively attached to the
4a, 304a so as to move in the left and right direction. Further, the back and forth moving parts 203 and 303 are configured to move in the back and forth direction by being driven by a motor (not shown).

The second clamp 300 also includes a cylinder 3 disposed between the clamp 3°O and the back-and-forth moving section 303 on one side.
05 and 305 are driven to move up and down in the vertical direction.

As shown in FIG. 4, the first clamp 200 includes electric wires 600a, which are fed along electric wire feeding lines Xa and Xb,
Wire insertion holes 210 and 21 through which 600b can be inserted, respectively.
．． 0 are formed respectively, and their insertion holes 210, 2
It is configured such that the electric wires 600a and 600b passing through the wires 10 can be gripped and released, respectively.

The second clamp 300 has two electric wires 600a.

600b, two abbreviated fixed claws 306, 306 arranged opposite to each other, and fixed claws 306.
, 306, the electric wire feed lines Xa, X
It has movable pawls 307, 307 attached to be movable forward and backward in the left and right directions orthogonal to b, and cylinders 308, 308 for driving the movable pawls 307, 307 forward and backward, respectively.

Electric wires 600a are placed between the vertical parts of the fixed claws 306, 306 and the movable claws 307, 307, respectively.
600b, cylinder 3 (18'308
When the movable claws 307, 307 move forward, the fixed claws 306, 306 and the iiJ movable claws 307, 307
The electric wires 600a and 60()b are each gripped, and the electric wires 600a and 60()b are each released from being gripped when the movable claws 307307 retreat, respectively.

FIG. 5 shows a front view of the cutter portion 100. As shown in the figure, the cutter part 100 has a wire insertion opening 1 in the center.
A cutter body 101 formed with 02 and a pair of cutting/incision cutters 1 arranged above and below, sandwiching the wire feeding lines Xa and Xb. ,03.

103, its cutting/notching cutter 103103, a first drive unit 104 for opening and closing the cutting/notching cutter 103, and a pair of upper and lower cutting cutters 153.153 arranged in line with the cutting/notching cutter 103.1.03. And that cutting cutter 15
3 is configured as a second drive section 154 for opening and closing.

The ball screw 105 of the first drive unit 104 has a right-handed screw region 105a carved on its upper outer periphery, and a left-handed screw region 105b carved on its lower outer periphery. This ball screw 1
05 is rotatably supported by the cutter body 101 via bearings 106 at both upper and lower ends thereof, with the axial direction thereof being arranged along the up-down direction. Further, the rotational drive shaft of the servo motor ki1 is connected to the lower end of the ball screw 105, so that the rotational force of the rotational drive shaft of the servo motor M1 is transmitted to the ball screw 105. Further, the brackets 107, 107 to which the cutters 103, 103 are attached, respectively, are in a state in which rotation around the vertical axis is restricted, I! ! The right-hand thread area 105a and the left-hand thread area 105a and 05b of the ball screw 105 are respectively screwed. As described above, when the ball screw 105 rotates, the bracket 1.07, which is screwed into the right-hand thread βn region 105a and the left-hand thread region 105b,
107 are driven toward and away from each other along the axial direction of the ball screw 105 in accordance with the rotational direction of the ball screw 105, and in this way, the pair of cutters 103, 103 are driven to open and close.

On the other hand, the tearing cutter 153 side is also configured in substantially the same manner as above. That is, a ball screw 155 is rotatably supported on the cutter main body 101 via a bearing 156, and the brackets 1, 57, 157 to which two cutting cutters 153 and 153 are respectively attached are rotated about the vertical axis. Each ball screw 15 in a regulated state
It is screwed into the right-hand threaded region 155a and the left-hand threaded region 155b of No.5. The brackets 157, 157 are moved toward and away from each other by driving the servo motor M2 in the same manner as described above, and the cutting cutters 153, 153 are opened and closed.

As shown in FIGS. 1 to 3, the ejection means 550 includes:
A pillar 551 and arrows R and S fixed to the upper end of the pillar 551.
It includes a rail 552 disposed along the left-right direction shown in , and a discharge clamp 553 supported by the rail 552 so as to be movable along the longitudinal direction of the rail. The discharge clamp 553 is moved in the left-right direction along the rail 552 by driving of a drive means (not shown), and is configured to simultaneously grip and release two cut electric wires, which will be described later.

On the other hand, in this harness manufacturing apparatus, each of the above-mentioned driving sections is connected to a control means (not shown), and the driving of each of the above-mentioned driving sections is controlled based on an output signal from the control means, which will be explained below. An action similar to this is performed.

Next, the operation of this harness manufacturing apparatus will be explained based on the flowchart of FIG. 6 and the operation diagrams of FIGS. 7 to 21. Note that the first and second clamps 200 and 300 are connected to the wire feed line X before starting the operation.
a and Xb, and electric wires 600a and 600, respectively.
The grip on b is released, and the cutting/notching cutter 103 and the tearing cutter 153 are open. Further, the discharge clamp 553 of the discharge means 550 is in the wire holding release state at a position moved to the right as indicated by arrow R in FIG.

From this state, in step S1, as shown in FIG.
The feeding rollers 53, 53 of the wire feeding means 50 are connected to the electric wire 600.
Rotate while holding wires a and 600b, respectively, and
00a and 600b are fed in a predetermined amount in the direction of arrow P along the wire feed lines Xa and Xb (only one side of the wire 600a is shown in FIG. 7. The same is true in FIGS. ) Next, as shown in FIG. 8, the electric wires 600a and 600b are held by the first clamp 200.

Next, as shown in FIG. 9, the feeding rollers 53, 53
The grip on the electric wires 600a, 600b is released, and the second clamp 300 grips the electric wires 600a, 600b
10, the electric wires 600a, 600b are gripped by the second clamp 3()0.

As a result, the tips of the cutters 1.03 are arranged corresponding to the upstream end positions of the intermediate stripping regions of the electric wires 600a and 600b.

Next, in step S2, as shown in FIG.
The electric wire 600a is cut by the cutting cutter 103.

600b is sandwiched, and the entire periphery of the covering portion at the upstream end of the planned intermediate strip region is cut until it reaches the core wire (first cutting process). Next, as shown by the broken line in FIG. 12, after the cutting/notching cutter 103 is opened, the first and second clamps 200 and 300 move in the right direction as shown by the arrow R, as shown in FIG. 13. Move a predetermined amount. As a result, the tips of the cutting cutters 153 are arranged corresponding to the upstream end positions of the intermediate stripping regions of the electric wires 600a and 600b. Next, step S
3, the cutting cutter 153 closes and cuts the electric wires 600a, 60 as shown in FIG.
The upstream end of the intermediate strip area of 0b is cut. As shown in Fig. 15, in this cutting state,
The second clamps 200 and 300 are each moved back in the direction of arrow Q by a predetermined amount. As a result, from the upstream end position to the downstream end position of the intermediate strip planned area,
Eleven wood slit-shaped cut grooves 650 are each made (cutting process). Next, as shown in FIG. 16, after the cutting cutter 153 is opened, in step S4, as shown in FIG.
are each moved by a predetermined amount in the left direction shown by the arrow S,
The electric wires 600a and 600b are respectively electric wire feeding lines Xa.
, Xb. As a result, the electric wire 600a.

The tips of the cutting/slitting cutter 103 are arranged corresponding to the downstream end position of the intermediate strip area 600b. Next, in step S4, as shown in FIG.
The entire circumference of the coating at the downstream end of the planned intermediate strip area of 00b is cut until it reaches the core wire (second cutting process)
. While in this cut state, the first and second clamps 200 and 300 are each moved forward by a predetermined amount as indicated by the arrow P, as shown in FIG. 19. In this way, the electric wires 600a, 6
By moving 00b forward, the covering portion of the intermediate strip f constant region is sequentially peeled off from the downstream side to the upstream side, and in this way, the covering portion of the intermediate strip region is removed from the core wire 6.
It is peeled off from 10. Next, as shown in FIG. 20, the cutter 103 is opened, and the electric wires 600a and 600b are held between the feed rollers 53 and 53, respectively.

Subsequently, as shown in FIG. 21, after the grips of the first and second clamps 200 and 300 on the electric wires 600a and 600b are released, in step S5, the feeding rollers 53 and 53 are rotated, and the electric wires 600a and 600b are rotated. 600b is fed in a predetermined amount in the direction of arrow P along the wire feeding lines Xa and Xb. Note that the electric wire 600a in this step S5
, 600b and the feeding amount of the electric wires 600a and 600b in step S1 above corresponds to the length dimension of the λ-ness.

Next, the electric wires 600a and 600b are held by the first and second clamps 200 and 300, respectively, and
After the electric wires 600a and 600b are released from being held by the feeding rollers 53 and 53, the electric wires 600a and 600b are respectively cut by the cutting/slitting cutter 103 in step S6 (cutting process). After that, in step S7, the first clamp 200 moves forward by a small amount in the direction of the arrow P, and the remaining electric wire 600a 6 held by the first clamp 200
The entire circumference of the covering portion at the downstream end of 00b is cut by the cutter 103. Then, as the first clamp 200 moves back in the direction of arrow Q while maintaining the cutting state,
Two remaining electric wires 60C) The covering portions of the downstream ends of a and 600b are removed.

Subsequently, as shown in step S8, the first clamp 2
00 moves to the right as indicated by the arrow R, and the first terminal crimping means 400 crimps the terminals 602602 to the stripped ends of the two remaining electric wires 600a and 600b on the downstream side (first terminal crimping). process). After that, the first clamp 200
moves to the left as shown by arrow S and returns to the original position shown in FIG.

On the other hand, as shown in step 510, while the first terminal crimping process (step S8) is being performed, the second clamp 300 moves back a small amount in the direction of the arrow Q, and is then gripped by the second clamp 300. The entire circumference of the covering portion of the upstream end of the two cut electric wires is cut by the cutter 103, respectively.

The second clamp 300 moves forward in the direction of the arrow P in the cut state, and the coating portions of the upstream ends of the two cut wires are stripped off (second coating stripping process).

Next, in step Sll, the second clamp 300 is
The second terminal crimping means 500 crimps the terminals to the upstream stripped ends of the two cut wires, respectively.

Then, in step 51.2, the two cut wires are each gripped by the discharge clamp 553, and the second
The grips of the clamps 300 on the cut wires are released, and the cut wires are transferred from the second clamp 300 to the discharge clamp 55.
handed over to 3. Subsequently, after the discharge clamp 553 moves to the left as shown by the arrow S along the rail 552, the grip on the cut wire is released, and the two cut wires are discharged to a wire discharge portion (not shown). Ru.

On the other hand, the second
The clamp 300 does not descend downward, but is moved to the right as shown by the arrow R, moves to a position below the wire feed lines Xa and Xb, and then rises, thereby returning to the original position shown in FIG. return. In parallel with the movement of the second clamp 300 to its original position, in step S, the remaining electric wires 600a and 600'b are fed in the same manner as in step S1. In this way, the process returns to step S2 again, and the above-described operations are repeated, and the covering portion of the intermediate strip area is peeled off, and two harnesses each having terminals crimped at both ends are successively manufactured.

According to this harness manufacturing device, the cutting/cutting cutter 1
03 makes a cut around the entire circumference of the coating at both ends of the intermediate strip region of the electric wires 600a, 600b, and a slit cutter 153 makes a slit-like cut in the coating of the intermediate strip region from the upstream end to the downstream end. Groove 6
50 so that the covering portion of the intermediate strip region is peeled off, so that the core wire exposed dimension of the intermediate strip region does not change over time. That is, unlike the conventional harness manufacturing apparatus shown in FIGS. 22, 23, and 25 to 27, the covering portion in the intermediate strip region is not compressed back and forth, but the covering portion is Elastic recovery does not cause the exposed core wire size in the intermediate strip region to decrease over time. Therefore, the core wire exposure dimension in the intermediate strip region is always kept constant, and variations in core wire exposure in one method can be prevented.

In addition, the cutting/cutting canter 103 and the cutting cutter 1
53, the ball screw 105.1
55 and servo motors Ml, M2, etc., so that the cutting/notching cutter 103 and the cutting canter 153 are driven to open and close by the rotation of the rotational drive shafts of the servo motors Ml, M2. The cutting/notching cutter 103 and the tearing cutter 153 can be stopped at arbitrary vertical positions depending on the driving amount of Ml and M2. Therefore, by simply changing the drive amount of the servo motors M1 and M2, it is possible to adjust the cutting position and the cutting amount into the electric wires 600a and 600b of the cutting/incision cutter 103 and the tearing cutter 153, respectively.

In other words, the cutting position and the cutting amount of the cutting/cutting cutter 103 and the tearing cutter 153 can be easily adjusted for all kinds of electric wires having different diameters such as 1 mm.

In the above embodiment, when peeling off the covering portion of the intermediate strip region, as shown in steps S2 to S4 in FIG. are configured to be executed in this order, but the temporal order of these processes (32 to S4) is not particularly limited and may be executed in any order.

(Effects of the Invention) As described above, according to this harness manufacturing apparatus, the cutting cutter is arranged, and the cutting/slitting cutter cuts the entire circumference of the covering part at both ends of the intermediate strip area of the electric wire, and Since the cutting cutter forms a slit-like cut groove from one end to the other end in the covering part of the intermediate strip area, the covering part of the intermediate strip area can be peeled off from the wire, and the intermediate strip area can be separated. It is possible to obtain the effect that the exposed core wire size of the core wire does not change over time, and there is no variation in the core wire exposed size.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a No. 1-ness manufacturing apparatus which is an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view thereof, and Fig. 4 is a perspective view of the main parts of the apparatus. 5 is a front view showing a cutter section applied to the device, FIG. 6 is a flowchart for explaining the operation of the λ-ness manufacturing device of the above embodiment, and FIGS. 7 to 21 22 is a schematic side view showing a conventional neck manufacturing device, FIG. 23 is a perspective view of its main parts, FIG. 24 is a perspective view showing a harness, and FIG. 25 is an explanatory diagram of the operation of the device. or the 27th
Each of the figures is a side view of a main part for explaining the operation of a conventional nose manufacturing apparatus. 50... Wire feeding means, 100... Cutter part, 103... Cutting/incision cutter 104... First drive section, 153... Tearing cutter 154... Second drive section , 200...first clamp, 250...first clamp means, 251...first clamp moving means, 300...second clamp, 350...second clamp means, 351...th 2 Clamp moving means, 600a, 600b-411 wire, 650... cut groove 10 core wire,

Claims (1)

[Claims] (1) An electric wire feeding means for feeding an electric wire along an electric wire feeding line; 2 clamping means, and a pair of cutting/cutting cutters for cutting the electric wire clamped by the first and second clamping means or cutting into the sheathing portion thereof, the harness manufacturing apparatus comprising: A cutting cutter is disposed above, and the electric wires transferred by the electric wire feeding means to predetermined first and second positions on the electric wire feeding line are gripped by the two clamping means to perform the cutting and cutting. cutting control means for making cuts in the covering portions at one end and the other end of the intermediate strip region of the electric wire using a cutting cutter; moving the electric wire to the cutting cutter position using both the clamping means; By moving the electric wire along its longitudinal direction by both clamping means with the cutting cutter cutting into the covering portion on one end side of the intermediate strip area, the electric wire is cut from one end side to the other end of the intermediate strip area. A harness manufacturing device comprising: a cutting control means for forming a slit-like cut groove across the side.