WO2017119175A1

WO2017119175A1 - Electrical wire processing device

Info

Publication number: WO2017119175A1
Application number: PCT/JP2016/081612
Authority: WO
Inventors: 征一郎藤田
Original assignee: 新明和工業株式会社
Priority date: 2016-01-07
Filing date: 2016-10-25
Publication date: 2017-07-13
Also published as: CN108780685B; JPWO2017119175A1; CN108780685A; JP6725537B2

Abstract

Provided is an electrical wire processing device capable of determining, prior to twist-processing, whether or not an electrical wire is a defective product and cancel the twist-processing, and capable of sorting readily between non-defective electrical wires and defective electrical wires such that the life-span of the electrical wire twisting device can be extended. The electrical wire processing device comprises: a front transport clamp 80F and a rear transport clamp 80R moving toward a front grasping clamp unit 90F and a rear grasping clamp unit 90R while holding a first electrical wire C1 and a second electrical wire C2; the front grasping clamp unit 90F and the rear grasping clamp unit 90R constituted in such a manner as to perform a twist-rotation; and a sensor 106 for detecting whether or not the electrical wires C1, C2 are present, and is provided on a transport pathway for the electrical wires C1, C2 from the transport start of the front transport clamp 80F and rear transport clamp 80R to the front grasping clamp unit 90F and rear grasping clamp unit 90R.

Description

Electric wire processing equipment

This invention relates to the electric wire processing apparatus which performs the process of the edge part of an electric wire, and the process which twists the several electric wire by which the process of the edge part was performed.

Conventionally, an electric wire that performs an end process such as cutting a long electric wire, stripping off the coating of the end of the cut electric wire, and a process of twisting a plurality of electric wires subjected to the end process. Processing devices are known. According to such an electric wire processing apparatus, it is possible to automatically and continuously manufacture a twisted electric wire formed by twisting a plurality of electric wires subjected to end treatment.

Patent Document 1 and Patent Document 2 include a cutting blade for producing a first electric wire having a predetermined length by cutting a long electric wire, a stripping blade for stripping the coating of the end portion of the first electric wire, Electric wire end processing apparatus including a cutting blade for producing a second electric wire having a predetermined length by cutting an electric wire having a predetermined length, and a stripping blade for stripping the coating on the end of the second electric wire, and covering the end The electric wire processing apparatus provided with the electric wire twist apparatus which twists the 1st and 2nd electric wire which peeled off is described. The 1st electric wire and the 2nd electric wire by which the edge part was processed by the electric wire end processing apparatus are delivered to an electric wire twist apparatus in the state hold | maintained at the conveyance clamp comprised so that a movement was possible. The electric wire twist device has a pair of rotary clamps that hold both ends of the first electric wire and the second electric wire.

JP 2014-235908 A JP 10-340644 A

By the way, when the wire passed to the wire twisting device by the conveyance clamp is not normally held due to some trouble, when twisting is performed as it is, defective processed wires are generated and the number of normal processed wires Incorrect counting will occur. Furthermore, there is a risk of damage to peripheral members. For this reason, there exists a possibility that the lifetime of an electric wire twist apparatus may become short, or the said poorly processed electric wire may be mixed in a good quality processed electric wire.

The present invention has been made in view of such points, and its purpose is to determine whether the wire is defective before twisting the wire, and to cancel the twisting treatment, It is an object of the present invention to provide an electric wire processing apparatus that can easily be sorted out from defective electric wires and that can extend the life of an electric wire twist device.

An electric wire processing apparatus according to the present invention is configured to receive one end of a plurality of electric wires subjected to end processing, and to be movable in a direction intersecting with the length direction of the electric wires while holding the plural electric wires. A first transport clamp, a second transport clamp configured to receive the other end of the plurality of electric wires and move in a direction intersecting the length direction of the electric wires while holding the plurality of electric wires; A first holding clamp portion that holds one end portion of the plurality of electric wires transferred from the first transfer clamp, and a second end portion of the plurality of electric wires transferred from the second transfer clamp. A second gripping clamp portion. At least one gripping clamp portion of the first gripping clamp portion and the second gripping clamp portion is configured to be rotatable so as to twist the plurality of electric wires. The wire processing device is configured to transfer the plurality of wires to the first gripping clamp portion and the second gripping clamp portion after the first transport clamp and the second transport clamp start transporting the plurality of wires. A detector for detecting the presence or absence of the plurality of electric wires, which is provided in a conveyance path of the plurality of electric wires until delivery.

According to the electric wire processing apparatus of the present invention, the detector for detecting the presence or absence of the plurality of electric wires is provided in the conveyance path of the plurality of electric wires conveyed by the first conveyance clamp and the second conveyance clamp. . Thereby, it is possible to detect whether or not the number of electric wires transferred to the first gripping clamp part and the second gripping clamp part is insufficient. Therefore, before twisting the electric wires, it is possible to determine whether the one after the twisting is a defective product. As a result, it is possible to easily classify the non-defective product electric wires and the defective electric wires, and to reduce the possibility that the defective electric wires are mixed with the non-defective product electric wires. Moreover, the twisting process can be canceled by the above determination. As a result, it is possible to prevent an unnecessary load from being applied to the grip clamp part, so that the life of the wire twist device can be extended.

According to a preferred aspect of the present invention, the detector is configured to detect the presence or absence of the plurality of wires based on the number of times the plurality of wires have passed through the detector.

¡Multiple wires cross the detector during transportation. According to the said aspect, a detector detects the presence or absence of a several electric wire based on the frequency | count of passage with respect to the said detector of the several electric wire. In this case, if the total number of passages is less than a preset number of passages, it can be determined that the electric wire is not normally conveyed. For example, when two electric wires are conveyed, if the total number of passes is less than two, it can be determined that the electric wires are not normally conveyed.

According to another preferable aspect of the present invention, the detector is configured to detect the presence or absence of the plurality of electric wires based on a passage time of the plurality of electric wires with respect to the detector.

When transferring a plurality of electric wires, there is a case where there is no space between the electric wires, and the plurality of electric wires are apparently integrated and transferred. According to the said aspect, a detector detects the presence or absence of a several electric wire based on the passage time with respect to the detector of a several electric wire. Therefore, even when it is difficult to determine based on the number of passages because there is no space between the wires, it is possible to appropriately grasp the conveyance state of the plurality of wires. Specifically, when the detector is composed of a non-contact sensor such as a photomicrosensor, the time for receiving reflected light from a plurality of electric wires in contact with each other is not in contact with each other. It becomes longer than the time for receiving the reflected light from any one of the plurality of wires. In addition, when the detector is composed of a contact sensor, the time for which the contact sensor is in contact with a plurality of wires in contact with each other is any one of the plurality of wires that are not in contact with each other. It becomes longer than the time when the contact-type sensor is in contact with one electric wire. The presence or absence of a plurality of electric wires can be detected using such a principle.

According to another preferable aspect of the present invention, the detector is configured to detect the presence or absence of the plurality of electric wires passed to the first gripping clamp part and the second gripping clamp part. Yes.

According to the above aspect, the detector detects the presence or absence of a plurality of wires at the final position of the transport path. Therefore, it is possible to more accurately detect whether or not the number of electric wires transferred to the first gripping clamp part and the second gripping clamp part is insufficient.

According to another preferable aspect of the present invention, the detector is a non-contact sensor.

According to the above aspect, multiple wires are not damaged during detection.

According to another preferable aspect of the present invention, when at least one of the plurality of electric wires is not detected by the detector, the twisting operation by the first gripping clamp portion and the second gripping clamp portion is performed. A control unit for stopping is provided.

According to the above aspect, before the twisting process is performed, it is possible to detect that the electric wires are not normally sent, and to prevent the occurrence of poor twisting. This facilitates post-processing of the electric wire detected as abnormal. Furthermore, it is possible to prevent a load from being applied to the first gripping clamp part and the second gripping clamp part.

According to another preferable aspect of the present invention, each of the end-treated electric wires has a core wire and a coating covering the periphery of the core wire, and at least one of the plurality of wires by the detector. A cutting mechanism is provided for cutting the sheath and the core wire of the detected wire when one is detected and at least the other is not detected.

According to the above aspect, an electric wire that has not been twisted can be cut by a cutting mechanism, and the electric wire can be easily classified as a defective product from the discharged non-defective electric wires.

According to the present invention, it is possible to determine whether or not the wire is a defective product before twisting the wire, and to cancel the twisting treatment, and to easily classify the non-defective processed wire and the defective wire. It is possible to provide an electric wire processing device that can extend the life of the electric wire twist device.

It is a top view which shows typically the structure of an electric wire processing apparatus. It is a figure which shows the structure of a holding clamp typically. It is a perspective view which shows the structure of an alignment clamp typically. It is a front view which shows the structure of an alignment clamp typically. It is a figure which shows typically the structure of a front conveyance clamp. It is a figure which shows typically the structure where the 1st electric wire and 2nd electric wire which are conveyed by the front conveyance clamp cross a sensor. It is a block diagram which shows the control system of an electric wire processing apparatus. It is a figure which shows typically the structure of a front grip clamp part, (a) represents the state which opened the grip arm, (b) represents the state which closed the grip arm. It is a figure which shows a twist electric wire typically. (A) is a figure which shows the structure of a cutting mechanism, (b) is a figure which shows the state which the cutter of the cutting mechanism fell, (c) is the elements on larger scale of the cutting mechanism of (a). (A), (b) is explanatory drawing which shows other embodiment of the detection of the 1st electric wire and 2nd electric wire by a sensor.

FIG. 1 is a plan view showing a configuration of an electric wire processing apparatus 1 according to an embodiment of the present invention. In the following description, unless otherwise specified, lower, upper, left, and right in FIG. 1 are referred to as front, rear, left, and right, respectively. Therefore, the lower side and the upper side in FIG. 1 are the front side and the rear side, respectively. The electric wire processing apparatus 1 is an apparatus that automatically and continuously manufactures a twisted electric wire in which two electric wires having a predetermined length are twisted together from two long electric wires. The electric wire processing device 1 includes an electric wire end processing device 2 that performs processing of an end portion of an electric wire, and an electric wire twist device 3 that performs processing of twisting two electric wires processed by the electric wire end processing device 2.

The wire end processing device 2 performs a cutting process, a stripping process, and a terminal crimping process on the first electric wire C1 and the second electric wire C2. The wire end processing device 2 includes a first pre-feeder 11 having a feeding device 13 for feeding a long first electric wire C1 forward, and a feeding device 23 for feeding a long second electric wire C2 forward. And a second pre-feeder 21. The wire end processing device 2 includes a first front clamp 14 that holds the first electric wire C1 and a second front clamp 24 that holds the second electric wire C2. The first front clamp 14 and the second front clamp 24 are configured to be movable back and forth, and appropriately move back and forth during the stripping process and the terminal crimping process. The first front clamp 14 and the second front clamp 24 are attached to the front clamp support 30. The wire end processing device 2 includes a rail 31 with which the front clamp support 30 is engaged, and an actuator 32 such as a motor that causes the front clamp support 30 to travel on the rail 31. The rail 31 extends in the left-right direction, and the front clamp support 30 is configured to be movable leftward and rightward. Further, the wire end processing device 2 includes a cutting blade 33 for cutting the first electric wire C1 and the second electric wire C2, a front peeling blade 34 for peeling off the covering of the first electric wire C1 and the covering of the second electric wire C2, and the rear peeling. A take-off blade 35 is provided. Behind the cutting blade 33, there is provided a feeding device 5 for feeding the first electric wire C1 held by the first front clamp 14 or the second electric wire C2 held by the second front clamp 24 forward or backward. .

Moreover, the wire end processing apparatus 2 includes a rear clamp 36 that holds either the first electric wire C1 or the second electric wire C2. The rear clamp 36 is configured to be movable back and forth, and appropriately moves back and forth during the cutting process and the stripping process. The rear clamp 36 is attached to a rear clamp support 37. The wire end processing device 2 includes a rail 38 with which a rear clamp support 37 is engaged, and an actuator 39 such as a motor that causes the rear clamp support 37 to travel on the rail 38. The rail 38 extends in the left-right direction, and the rear clamp support 37 is configured to be movable leftward and rightward. The wire end processing device 2 includes a front terminal crimping unit 40 and a rear terminal crimping unit 41. The terminal T is crimped by the front terminal crimping unit 40 to the first electric wire C1 held by the first front clamp 14. Further, the terminal T is crimped by the front terminal crimping unit 40 to the second electric wire C 2 held by the second front clamp 24.

As shown in FIG. 1, the wire end processing device 2 includes a discharge clamp 42 that discharges the first electric wire C1 and the second electric wire C2 that have been subjected to the cutting process described above from the wire end processing device 2. The discharge clamp 42 is configured to be movable along the rail 43. Moreover, the electric wire processing apparatus 1 is provided with the intermediate clamp 50 which sends the 1st electric wire C1 and the 2nd electric wire C2 from the electric wire end processing apparatus 2 to the electric wire twist apparatus 3. FIG. The intermediate clamp 50 is configured to be movable along the rail 51.

The electric wire twist device 3 performs a process of arranging the first electric wire C1 and the second electric wire C2 and a process of twisting the first electric wire C1 and the second electric wire C2. The electric wire twist device 3 includes a holding clamp 60 that holds the first electric wire C1 and the second electric wire C2 at the same time. The holding clamp 60 is configured to be able to hold the rear ends of the first electric wire C1 and the second electric wire C2 at the same time. As shown in FIG. 2, the holding clamp 60 includes a clamp body 63, a first grip plate 61 slidably provided on the clamp body 63, and a second grip plate 62 slidably provided on the clamp body 63. have. The clamp body 63 includes a bottom wall 63a, a first side wall 63b, a second side wall 63c, and an intermediate wall 63d that extend upward from the bottom wall 63a.

The first grip plate 61 is fixed to a first rod 66 that is slidably inserted into the first side wall 63b. The second grip plate 62 is fixed to a second rod 67 slidably inserted into the second side wall 63c. The first grip plate 61 and the second grip plate 62 are configured to be slidable so as to be able to approach and separate from the intermediate wall 63d. The holding clamp 60 has a cylinder 64 connected to the first rod 66 and a cylinder 65 connected to the second rod 67. The first grip plate 61 and the first rod 66 are driven by the cylinder 64 to slide, and the second grip plate 62 and the second rod 67 are driven by the cylinder 65 to slide. The first electric wire C1 is held by the holding clamp 60 by sandwiching the first electric wire C1 between the first grip plate 61 and the intermediate wall 63d. The second electric wire C2 is held by the holding clamp 60 by sandwiching the second electric wire C2 between the second grip plate 62 and the intermediate wall 63d. The clamp body 63 can move up and down. The clamp body 63 is supported by the base 120 so as to be movable up and down. The base 120 is provided with a cylinder 121 that raises and lowers the clamp body 63. The holding clamp 60 is configured to be movable back and forth. The holding clamp 60 moves forward after receiving the first electric wire C1 and the second electric wire C2 from the intermediate clamp 50.

The electric wire twist device 3 includes an alignment clamp 70 that arranges the first electric wire C1 and the second electric wire C2 that are held by the holding clamp 60 in parallel. The alignment clamp 70 is movable back and forth along a rail 71 extending in the front-rear direction. As shown in FIGS. 3 and 4, the alignment clamp 70 includes a slider 72 slidably supported on a rail 71, a clamp body 73 supported on the slider 72, and an inclination disposed on the rear side of the clamp body 73. And a stand 74. The tilting table 74 has an inclined surface 74a made of a curved surface inclined obliquely downward. A sorting plate 75 is fixed to the front end portion of the upper surface 73 a of the clamp body 73. A first alignment arm 76 and a second alignment arm 77 are disposed on the front surface 73 b of the clamp body 73. The first alignment arm 76 and the second alignment arm 77 are supported by the clamp body 73 by a rotation shaft 78 and are configured to be rotatable around the rotation shaft 78. A first alignment roller 76 a is attached to the distal end portion of the first alignment arm 76, and a second alignment roller 77 a is attached to the distal end portion of the second alignment arm 77. As the first alignment arm 76 and the second alignment arm 77 rotate, the first alignment roller 76a and the second alignment roller 77a move in a direction toward and away from the sorting plate 75. As shown in FIG. 4, the clamp body 73 is provided with a cylinder 79 connected to the first alignment arm 76 and the second alignment arm 77. The cylinder 79 rotates the first alignment arm 76 and the second alignment arm 77. A motor 69 is connected to the slider 72 via a drive mechanism (not shown). The motor 69 drives the slider 72 along the rail 71. When the first alignment roller 76a approaches the sorting plate 75, the first sorting roller 76a and the sorting plate 75 sandwich the first electric wire C1 and hold the first electric wire C1. When the second alignment roller 77a approaches the sorting plate 75, the second alignment roller 77a and the sorting plate 75 sandwich the second electric wire C2 and hold the second electric wire C2. The alignment clamp 70 holds the first electric wire C1 and the second electric wire C2 when positioned on the rear end portion 71a (see FIG. 1) of the rail 71, and moves forward while holding the first electric wire C1 and the second electric wire C2. Move to. Thereby, the 1st electric wire C1 and the 2nd electric wire C2 are arranged in parallel.

As shown in FIG. 1, the wire twist device 3 includes a front conveyance clamp 80F that can simultaneously hold the front ends of the first wire C1 and the second wire C2, and the rear ends of the first wire C1 and the second wire C2. And a rear conveyance clamp 80R that can be held at the same time. The front conveyance clamp 80F is configured to engage with a rail 81F extending in the left-right direction and move left and right. The rear transport clamp 80R is configured to engage with a rail 81R extending in the left-right direction and move left and right. Details of the front transfer clamp 80F and the rear transfer clamp 80R will be described later.

Here, the electric wire processing apparatus 1 includes a sensor 106 that detects the presence or absence of the first electric wire C1 and the second electric wire C2. Although details will be described later, the first electric wire C1 and the second electric wire C2 are conveyed to the below-described front gripping clamp portion 90F and the rear gripping clamp portion 90R by the front transport clamp 80F and the rear transport clamp 80R. The sensor 106 is provided in the middle of the conveyance path | route of the 1st electric wire C1 and the 2nd electric wire C2. The sensor 106 is fixed to a jig (not shown). As the sensor 106, a non-contact type sensor that detects the presence or absence of these electric wires C1 and C2 without contacting the first electric wire C1 and the second electric wire C2, or by contacting the first electric wire C1 and the second electric wire C2 The contact type sensor which detects the presence or absence of the electric wires C1 and C2 can be used. In this embodiment, a non-contact sensor is used as the sensor 106. Specifically, for example, a photomicrosensor, a photoelectric sensor, a laser sensor, an ultrasonic sensor, an image sensor, a line sensor, or a proximity sensor can be used as the sensor 106. A photomicrosensor (for example, a reflection type) can be suitably used from the viewpoint that it is relatively economical and does not take up much installation space. When a photomicrosensor is used as the sensor 106, the presence or absence of the first electric wire C1 and the second electric wire C2 can be detected by detecting the amount of light irradiated and reflected on the first electric wire C1 and the second electric wire C2. it can. When the sensor 106 detects the light irradiated and reflected on the first electric wire C1 by the sensor 106, the output signal of the sensor 106 is turned on. On the other hand, when the sensor 106 does not detect the reflected light, the output signal of the sensor 106 is turned off. For example, when only the first electric wire C 1 is transported due to some trouble, the number of times that the ON signal is output by the sensor 106 is one. When both the first electric wire C1 and the second electric wire C2 are appropriately conveyed, the number of times that the ON signal is output by the sensor 106 is two. Thus, the presence or absence of the first electric wire C1 and the second electric wire C2 is detected based on the number of times the first electric wire C1 and the second electric wire C2 have passed through the sensor 106. The passage of the first electric wire C1 and the second electric wire C2 to the sensor 106 means that the first electric wire C1 and the second electric wire C2 pass through the detection area of the sensor 106. When, for example, a photomicrosensor is employed as the sensor 106, the above passage means that the light passes through the range of light emitted from the photomicrosensor. In order to detect the presence or absence of the first electric wire C1 and the second electric wire C2 based on the number of passages, the first electric wire C1 and the second electric wire C2 are spaced apart from each other by the front conveyance clamp 80F and the rear conveyance clamp 80R. It may be conveyed in the state. Note that the sensor 106 is not limited to using a photomicrosensor.

As shown in FIG. 1, the sensor 106 is provided between a rail 71 and a later-described rail 102 in plan view. The sensor 106 is provided between the rail 81F and the rail 81R in plan view. The sensor 106 is provided between the front transport clamp 80F and the rear transport clamp 80R in plan view. The sensor 106 is located behind the front conveyance clamp 80F. The sensor 106 is provided between the front transport clamp 80F and a point that is a quarter of the distance between the front transport clamp 80F and the rear transport clamp 80R in plan view. As shown in FIG. 9, the twisted electric wire CT has one end portion CT1 positioned closest to the front gripping clamp portion 90F among the portions where the first electric wire C1 and the second electric wire C2 are in contact. The sensor 106 may be disposed closer to the front gripping clamp portion 90F than the one end portion CT1. This is because if the central portion of the first electric wire C1 and the second electric wire C2 come into contact with each other during conveyance, there may be no gap between the first electric wire C1 and the second electric wire C2 at the central portion. By disposing the sensor 106 toward the front gripping clamp portion 90F rather than the one end portion CT1, the sensor 106 can be disposed in a region where the interval is ensured. As shown in FIG. 1, the sensor 106 has a front gripping clamp portion 90 F side and a rear gripping clamp portion 90 R from the middle of the transport path of the first electric wire C 1 and the second electric wire C 2 by the front conveyance clamp 80 F and the rear conveyance clamp 80 R. It is provided towards. As shown in FIG. 6, the sensor 106 is disposed at a position higher than the first electric wire C1 and the second electric wire C2 conveyed by the front conveyance clamp 80F. The sensor 106 is disposed at a position higher than a pair of first and

second grip arms

85a and 85b described later of the front transport clamp 80F.

As shown in FIG. 5, the front transport clamp 80F is rotatably supported by the clamp body 83 by the slider 82 engaged with the rail 81F, the clamp body 83 supported by the slider 82 so as to be movable up and down, and the rotary shaft 84. A grip arm 85 and an intermediate wall 83a. The grip arm 85 includes a first grip arm 85a and a second grip arm 85b provided on the side of the first grip arm 85a. The front conveyance clamp 80 F has a cylinder 86 connected to the grip arm 85. The

grip arms

85 a and 85 b rotate around the rotation shaft 84 by receiving the driving force of the cylinder 86. The intermediate wall 83a is provided between the first grip arm 85a and the second grip arm 85b. The height position of the lower end of the intermediate wall 83a, the height position of the lower end of the first grip arm 85a, and the height position of the lower end of the second grip arm 85b are substantially the same. As the first grip arm 85a rotates toward the intermediate wall 83a (counterclockwise in FIG. 5), the first electric wire C1 is sandwiched between the first grip arm 85a and the intermediate wall 83a. Similarly, when the second grip arm 85b rotates toward the intermediate wall 83a (clockwise in FIG. 5), the second electric wire C2 is sandwiched between the second grip arm 85b and the intermediate wall 83a. Thus, by providing the intermediate wall 83a between the first grip arm 85a and the second grip arm 85b, when the first electric wire C1 and the second electric wire C2 are respectively held, the first electric wire C1 and The second electric wire C2 is not in contact with each other. Thereby, a space | interval can be produced between the 1st electric wire C1 and the 2nd electric wire C2. The first electric wire C1 and the second electric wire C2 are simultaneously held by the front conveyance clamp 80F. The front conveyance clamp 80F has a cylinder 87 connected to the clamp body 83. The clamp body 83 moves up and down in response to the driving force of the cylinder 87. The slider 82 is connected to the cylinder 88 via a drive mechanism (not shown), and is configured to be movable along the rail 81F. The cylinder 88 drives the slider 82 along the rail 81F. Since the rear transport clamp 80R has the same configuration as the front transport clamp 80F, detailed description thereof is omitted. However, the slider 82 of the rear transport clamp 80R is engaged with the rail 81R (see FIG. 1), and moves along the rail 81R in response to the driving force of the cylinder 88.

As shown in FIG. 6, the front transport clamp 80F moves in the direction of the arrow D2 along the rail 81F while holding the first electric wire C1 and the second electric wire C2. Thereby, the 1st electric wire C1 and the 2nd electric wire C2 are conveyed in the direction D1 perpendicular | vertical to the length direction of the said 1st electric wire C1 and the 2nd electric wire C2, respectively. As described above, since the sensor 106 is disposed behind the front conveyance clamp 80F and is disposed at a position higher than the first electric wire C1 and the second electric wire C2 being conveyed, the movement of the front conveyance clamp 80F is detected. I do not disturb. The presence or absence of the first electric wire C1 and the second electric wire C2 is detected by the sensor 106 in a state of being spaced apart from each other.

As shown in FIG. 1, the wire processing apparatus 1 includes a control device 200. The configuration of the control device 200 is not particularly limited, and may be, for example, a computer including a CPU, RAM, ROM, and the like. When at least one of the first electric wire C1 and the second electric wire C2 is not detected by the sensor 106, the control device 200 stops the twisting operation by the front gripping clamp portion 90F and the rear gripping clamp portion 90R. In this case, as shown in FIG. 7, control device 200 stops the operation of actuator 98 and the operation of motor 99 based on the detection result of sensor 106. Thereby, it is possible to avoid the twisting of only one electric wire.

Here, as shown in FIGS. 10A and 10B, the wire processing apparatus 1 includes a cutting mechanism 130. FIGS. 10A and 10B are diagrams showing the configuration of the cutting mechanism 130 when the rear is viewed from the front. The cutting mechanism 130 cuts the detected electric wire as a defective line when one of the first electric wire C1 and the second electric wire C2 is not detected by the sensor 106 (see FIG. 6). The cutting mechanism 130 is provided at a position P2 that is above the end point P1 (see FIG. 6) of the conveyance path of the first electric wire C1 and the second electric wire C2, which will be described later. Accordingly, the detected one of the first electric wire C1 and the second electric wire C2 is cut by the cutting mechanism 130 in a state where the electric wire is held by the front holding clamp portion 90F and the rear holding clamp portion 90R. . Such a cutting mechanism 130 includes a cutter 131, a cutter cover 132 provided near the cutter 131, a support portion 133 connected to the cutter 131 and the cutter cover 132, and an air cylinder 134 that raises and lowers the support portion 133. It has. Instead of the air cylinder 134, another drive source such as a hydraulic cylinder may be used. The cutter 131 is configured to be movable up and down, and cuts a portion where the wire coating 152 (see FIG. 9) is provided. That is, the wire covering 152 and the core 151 are cut. The position of the cutter 131 in the front-rear direction is not particularly limited as long as the cutter 131 is disposed above the portion where the wire covering 152 is provided. The cutter 131 and the cutter cover 132 are configured to be lifted and lowered simultaneously when the support portion 133 is lifted and lowered by the air cylinder 134. FIG. 10C is an enlarged view of a region K in FIG. As shown in FIG. 10C, the cutter 131 has a pair of

blades

131a and 131b configured to be movable in the left-right direction. The blade 131b is provided on the right side of the blade 131a. The blade 131a is supported by a cutter support base 135a provided above the blade 131a. The blade 131b is supported by a cutter support base 135b provided above the blade 131b. The

cutter support bases

135a and 135b are coupled to an air chuck 136 connected to the support portion 133. The air chuck 136 moves the

cutter support bases

135a and 135b toward and away from each other. When the blade 131a and the blade 131b move in the direction in which they approach each other, the electric wire is sandwiched between the blade 131a and the blade 131b and cut.

The cutter cover 132 is formed in a thin plate shape, for example. The cutter cover 132 is provided behind the cutter 131. The cutter cover 132 has a notch 132a including a semicircular portion. The height position of the notch 132a is substantially the same as the height position of the cutter 131. In such a configuration, the detected electric wire is held by the front gripping clamp part 90F and the rear gripping clamp part 90R, and as shown in FIG. The cutter 131 and the cutter cover 132 are lowered. At this time, the electric wire fits in the notch 132a of the cutter cover 132. Thereby, positioning of the electric wire is performed. With the electric wires positioned as described above, the

blades

131a and 131b are moved in the direction approaching each other by the air chuck 136 described above. Thereby, the said electric wire will be cut | disconnected. Since the electric wire is housed in the notch portion 132a, it is stable without moving greatly to the left and right when being cut by the

blades

131a and 131b. For this reason, it is easy to cut an electric wire. In addition, after the cutting process, when the electric wire from which the front holding clamp unit 90F and the rear holding clamp unit 90R are cut is released, the electric wire falls and is collected in the tray 110 (see FIG. 1).

The electric wire twist device 3 holds the front end of the first electric wire C1 and the second electric wire C2 at the same time while rotating the front gripping clamp portion 90F and the rear end of the first electric wire C1 and the second electric wire C2 at the same time. A rotating rear gripping clamp portion 90R. Since the configurations of the front gripping clamp portion 90F and the rear gripping clamp portion 90R are the same, only the configuration of the front gripping clamp portion 90F will be described here. As shown in FIGS. 8A and 8B, the front gripping clamp portion 90F includes a clamp body 91, a shaft 92 that can slide back and forth (left and right in FIG. 8A) with respect to the clamp body 91, and A pair of grip arms 93 attached to the shaft 92 is provided. The grip arm 93 includes a first link 94 rotatably supported on the shaft 92 by a rotation shaft 94a, a second link 95 rotatably supported by the first link 94 by a rotation shaft 95a, and a first link 94 by a rotation shaft 96a. And a third link 96 rotatably supported by the two links 95. A holding portion 97 that holds the first electric wire C 1 and the second electric wire C 2 is provided at the tip of the third link 96. As shown in FIG. 8A, in the front gripping clamp portion 90F, when the shaft 92 moves rearward (to the right in FIG. 8A), the grip arm 93 is opened and the first electric wire C1 and the second electric wire C2. Is configured to release the holding. On the other hand, as shown in FIG. 8 (b), when the shaft 92 moves forward (leftward in FIG. 8 (b)), the grip arm 93 is closed and the first electric wire C1 and the second gripping portion 90F are closed. It is comprised so that the electric wire C2 may be hold | maintained. An actuator 98 that slides the shaft 92 is connected to the shaft 92. A motor 99 that rotates the front gripping clamp portion 90F around the rotation center axis 90c is connected to the front gripping clamp portion 90F. The front gripping clamp portion 90F rotates around the rotation center axis 90c while simultaneously holding the front ends of the first electric wire C1 and the second electric wire C2, and the rear gripping clamp portion 90R is located behind the first electric wire C1 and the second electric wire C2. The first electric wire C1 and the second electric wire C2 are twisted together by rotating around the rotation center axis 90c while simultaneously holding the end portions.

As shown in FIG. 1, a slider 101 is fixed to the front gripping clamp portion 90F. The slider 101 is engaged with a rail 102 extending in the front-rear direction, and is configured to be able to travel on the rail 102. A motor 103 that drives the slider 101 to travel on the rail 102 is connected to the slider 101. When the slider 101 moves forward, the front gripping clamp portion 90F moves forward, and when the slider 101 moves backward, the front gripping clamp portion 90F moves backward. A tray 110 that collects twisted electric wires (that is, electric wires formed by twisting the first electric wires C1 and the second electric wires C2) is disposed below the front holding clamp portions 90F and the rear holding clamp portions 90R. When the front gripping clamp portion 90F and the rear gripping clamp portion 90R release the twisted wires, the twisted wires are dropped and collected in the tray 110.

As shown in FIG. 9, the wire processing apparatus 1 manufactures a twisted wire CT in which a first wire C1 and a second wire C2 having terminals T crimped at both ends are twisted together. The first electric wire C 1 and the second electric wire C 2 have a core wire 151 and a coating 152 that covers the periphery of the core wire 151. The core 151 is made of a conductor such as metal, and the coating 152 is made of an insulating material such as vinyl resin. Depending on the length of the first electric wire C1 and the second electric wire C2, the front and rear positions of the front transport clamp 80F and the front gripping clamp portion 90F are adjusted. Specifically, when the first electric wire C1 and the second electric wire C2 are twisted together, their apparent length, that is, the length of the twisted electric wire CT is shorter than the original length of the first electric wire C1 and the second electric wire C2. Become. Therefore, the front gripping clamp portion 90F moves backward (that is, in a direction approaching the rear gripping clamp portion 90R) while rotating.

As described above, according to the electric wire processing apparatus 1 of the present embodiment, after the front conveyance clamp 80F and the rear conveyance clamp 80R start conveying the first electric wire C1 and the second electric wire C2, the first electric wire C1 and the first electric wire C1. A sensor 106 that detects the presence / absence of these electric wires C1 and C2 is provided on the conveyance path until the two electric wires C2 are transferred to the front gripping clamp portion 90F and the rear gripping clamp portion 90R. Thereby, it is possible to detect whether or not the number of electric wires delivered to the front gripping clamp part 90F and the rear gripping clamp part 90R is insufficient. Therefore, before twisting the first electric wire C1 and the second electric wire C2, it is possible to determine whether or not it is a defective product. As a result, it is possible to easily classify the non-defective product electric wires and the defective electric wires, and to reduce the possibility that the defective electric wires are mixed with the non-defective product electric wires. Moreover, the twisting process can be canceled by the above determination. As a result, it is possible to prevent the

grip clamp portions

90F and 90R from being loaded more than necessary, so that the life of the wire twist device 3 can be extended.

Moreover, according to the electric wire processing apparatus 1 of this embodiment, when the sensor 106 is provided in the middle of the conveyance path | route of the 1st electric wire C1 and the 2nd electric wire C2, these electric wires C1 and C2 are respectively conveying. Across the sensor 106. Thereby, the sensor 106 can detect the presence or absence of the electric wires C1 and C2 based on the frequency | count of passage with respect to the said sensor 106 of the electric wires C1 and C2.

Moreover, according to the electric wire processing apparatus 1 of this embodiment, since a non-contact type sensor is used as the sensor 106, the first electric wire C1 and the second electric wire C2 are not damaged during detection.

Further, according to the wire processing apparatus 1 of the present embodiment, when at least one of the first electric wire C1 and the second electric wire C2 is not detected by the sensor 106, the front holding clamp portion 90F and the rear holding clamp are controlled by the control device 200. The twisting operation by the part 90R is stopped. Thereby, before being twisted, it can be detected that the electric wires are not normally sent and the occurrence of poor twisting can be prevented in advance. This facilitates post-processing of the electric wire detected as this abnormality. Furthermore, it is possible to prevent a load from being applied to the front gripping clamp portion 90F and the rear gripping clamp portion 90R.

Moreover, according to the electric wire processing apparatus 1 of this embodiment, when one of the first electric wire C1 and the second electric wire C2 is not detected by the sensor 106, the portion where the detected wire covering 152 is present is a cutting mechanism. It was made to cut | disconnect by 130. Thereby, the electric wire which was not made into the object of twisting can be easily classified as a defective product from the discharged non-defective processed electric wires.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be implemented in various other forms.

In the above embodiment, the first electric wire C1 and the second electric wire C2 are configured to detect the presence or absence of the first electric wire C1 and the second electric wire C2 based on the number of times of passage of the first electric wire C1 and the second electric wire C2 with respect to the sensor 106. is not. Based on the passage time of the first electric wire C1 and the second electric wire C2 with respect to the sensor 106, the presence or absence of the first electric wire C1 and the second electric wire C2 may be detected. When the first electric wire C1 and the second electric wire C2 are transported, the first electric wire C1 and the second electric wire C2 are in contact with each other, and there is no space between the two electric wires C1 and C2, and they are apparently integrated. May be transported. In such a case, it may be difficult to detect the presence or absence of the first electric wire C1 and the second electric wire C2 based on the number of passages. However, if the presence / absence of the first electric wire C1 and the second electric wire C2 is detected based on the passage time, the passage described above occurs because there is no space between the first electric wire C1 and the second electric wire C2. Even when it is difficult to discriminate based on the number of times, good detection can be performed.

Further, instead of detecting the presence or absence of these electric wires C1 and C2 based on the number of passages and passage times of the first electric wire C1 and the second electric wire C2 with respect to the sensor 106, the front holding clamp portion 90F and the rear holding clamp portion 90R receive the electric wires C1 and C2. The passed electric wire, that is, the electric wire in the stopped state may be detected by the sensor 106. In this case, as shown in FIG. 6, the sensor 106 may be provided at a position P2 above the end point P1 of the transport path of the first electric wire C1 and the second electric wire C2. With such a configuration, the presence or absence of the first electric wire C1 and the second electric wire C2 can be detected after the conveyance is completed.

In the above-described embodiment, the sensor 106 is provided between the front conveyance clamp 80F and a point that is ¼ of the distance between the front conveyance clamp 80F and the rear conveyance clamp 80R in a plan view. It is not a thing. For example, the sensor 106 may be provided between the rear conveyance clamp 80R and a point that is 1/4 of the distance.

In the above embodiment, a photomicro sensor, a photoelectric sensor, a laser sensor, an ultrasonic sensor, a proximity sensor, and the like are given as examples of the sensor 106, but other sensors different from these may be used.

In the above embodiment, one sensor 106 is provided, but two or more sensors 106 may be provided.

In the above embodiment, when the sensor 106 does not detect the presence of either the first electric wire C1 or the second electric wire C2, a configuration is provided in which the electric wire is recovered as a defective product in a tray different from the tray 110. You may do it.

In the above embodiment, the intermediate wall 83a is provided in the clamp body 83, but the present invention is not limited to this. When the first electric wire C1 and the second electric wire C2 can be conveyed by the front conveyance clamp 80F and the rear conveyance clamp 80R with the first electric wire C1 and the second electric wire C2 spaced apart from each other, the intermediate wall 83a is used. Is not an essential element. Moreover, as shown to Fig.11 (a), when the 1st electric wire C1 and the 2nd electric wire C2 are conveyed in the state which overlapped in the up-down direction (namely, the horizontal direction of the 1st electric wire C1 and the 2nd electric wire C2) The intermediate wall 83a is not an indispensable element when the sensor 106 can detect the presence or absence of the first electric wire C1 and the second electric wire C2 even when there is no gap. Furthermore, as shown in FIG. 11B, when the first electric wire C1 and the second electric wire C2 are transported in a state where they are all overlapped in the vertical direction, when the sensor 106 is configured by a photomicrosensor or the like, It is difficult to detect the presence or absence of the first electric wire C1 and the second electric wire C2. Therefore, in addition to the sensor 106, another sensor 107 configured by a proximity sensor, for example, may be provided. In this case, the sensor 107 is provided, for example, on the downstream side of conveyance of the first electric wire C1 and the second electric wire C2.

In the above embodiment, the two electric wires, the first electric wire C1 and the second electric wire C2, are simultaneously held and conveyed to the front gripping clamp portion 90F and the rear gripping clamp portion 90R, and the presence of the electric wire is detected by the sensor 106. However, three or more electric wires may be conveyed simultaneously to detect the shortage of electric wires.

In the above embodiment, the front gripping clamp portion 90F that rotates while simultaneously holding the front ends of the first electric wire C1 and the second electric wire C2, and the rear end portions of the first electric wire C1 and the second electric wire C2 that are rotated simultaneously are held. And a rear gripping clamp portion 90R. However, on at least one clamp side, the first electric wire C1 and the second electric wire C2 may be held by individual clamps and driven to rotate and revolve.

DESCRIPTION OF SYMBOLS 1 Electric wire processing apparatus 3 Electric wire twist apparatus 80F Front conveyance clamp (1st conveyance clamp)
80R Rear transfer clamp (second transfer clamp)
90F Front grip clamp (first grip clamp)
90R Rear grip clamp (second grip clamp)
106 Sensor (detector)
200 Control device (control unit)
C1 1st electric wire C2 2nd electric wire

Claims

A first conveying clamp configured to receive one end of a plurality of electric wires that have been end-treated, and to move in a direction that intersects the length direction of the electric wires while holding the plurality of electric wires;
A second transport clamp configured to receive the other end of the plurality of wires and move in a direction intersecting the length direction of the wires while holding the plurality of wires;
A first gripping clamp for holding one end of the plurality of wires passed from the first transport clamp;
A second gripping clamp portion for holding the other end portions of the plurality of electric wires passed from the second transport clamp,
At least one gripping clamp portion of the first gripping clamp portion and the second gripping clamp portion is configured to be rotatable so as to twist the plurality of electric wires,
The plurality of lines from when the first conveyance clamp and the second conveyance clamp start conveying the plurality of electric wires to when the plurality of electric wires are delivered to the first grasping clamp portion and the second grasping clamp portion. A wire processing apparatus, further comprising a detector that is provided in a conveyance path of the two electric wires and detects the presence or absence of the plurality of electric wires.
The electric wire processing apparatus according to claim 1, wherein the detector is configured to detect the presence or absence of the plurality of electric wires based on the number of times the plurality of electric wires pass through the detector.
The electric wire processing apparatus according to claim 1, wherein the detector is configured to detect the presence or absence of the plurality of electric wires based on a passage time of the plurality of electric wires with respect to the detector.
The electric wire processing apparatus according to claim 1, wherein the detector is configured to detect the presence or absence of the plurality of electric wires passed to the first gripping clamp portion and the second gripping clamp portion.
The electric wire processing apparatus according to any one of claims 1 to 4, wherein the detector is a non-contact sensor.
A control unit is provided that stops a twisting operation by the first gripping clamp unit and the second gripping clamp unit when at least one of the plurality of electric wires is not detected by the detector. The electric wire processing apparatus according to any one of 5.
The end-treated electric wires each have a core wire and a covering covering the periphery of the core wire,
A cutting mechanism for cutting the sheath and the core wire of the detected wire when at least one of the plurality of wires is detected by the detector and at least the other wire is not detected; Item 7. The electric wire processing apparatus according to any one of Items 1 to 6.