Slitting device for peeling and slitting method for peeling

Abstract

To provide a slitting device and slitting method for peeling that can improve the slitting accuracy when the target is a thick wire or a covered wire wound around a bobbin and stored.SOLUTION: A cut mechanism 11 of a slitting device 1 for peeling includes a conductive cutter blade 111 for slitting, a contact detection part 113 that detects contact between an outermost conductor of a covered wire 2 and the cutter blade 111 for slitting on the basis of a current flowing through an electric circuit including a power source connection part 13, the outermost conductor, and the cutter blade 111 for slitting, a movement mechanism 112 for slitting, which is a mechanism that moves the cutter blade 111 for slitting in an intersecting direction D12 with respect to an outer surface 2a, and that adjusts the position of the cutter blade 111 for slitting in the intersecting direction D12 to a position corresponding to the specified slitting depth and makes slitting when contact is detected by a contact detection part 113 during movement of the cutter blade 111 for slitting.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cutting device and a cutting method for stripping a coated electric wire, which cuts an incision from the outer surface to strip the insulated electric wire. [Background technology]

[0002] Conventionally, as one of the end treatments for covered electric wires, a stripping process is widely performed in which the covering is removed to expose the conductor such as the core wire inside. For this stripping process, a stripping incision device is known that can remove the stripped portion by making an incision from the outer circumferential surface of the covered electric wire (see, for example, Patent Document 1). In the type of stripping incision device described in Patent Document 1, a pair of V-shaped cutter blades that clamp the covered electric wire so as to bite into the outer circumferential surface are rotated around the axis of the electric wire to form an incision for stripping. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-350324 A Summary of the Invention [Problem to be solved by the invention]

[0004] Here, the insulated electric wire includes a thick electric wire having a core wire and a plurality of layers of coating materials, such as an inner coating, a braid, a metal foil, and an outer coating, laminated thereon. In the above-mentioned type of stripping incision device, in many cases, the reference for the movement of the V-shaped cutter blade when clamping the insulated electric wire is set to the electric wire axis, and the position of the movement destination of the V-shaped cutter blade is specified as the distance from the electric wire axis. Then, the V-shaped cutter blade is moved toward the electric wire axis so as to bite into the insulated electric wire with a cutting depth according to the specified movement destination, and clamps the insulated electric wire. For example, when the above-mentioned thick electric wire is to be incised, the position of the movement destination of the V-shaped cutter blade is specified as the distance from the electric wire axis obtained by subtracting the thickness of the coating material to be stripped from the radius of the core wire and the sum of the thicknesses of the plurality of layers of coating materials. In this case, for thick electric wires, the tolerance of the position of the V-shaped cutter blade relative to the electric wire axis tends to be large because it is the cumulative tolerance of the core wire radius tolerance and the thickness tolerance of the coating material other than the target to be stripped. As a result, the movement accuracy of the V-shaped cutter blade is low. For example, when trying to cut into the desired coating material of the above-mentioned thick electric wire, the low movement accuracy of the V-shaped cutter blade may cause the cut to be too deep, cutting into the coating material that should be left inside. Or, the cut may be too shallow, and not enough cut for stripping.

[0005] In addition, many insulated electric wires are stored wound on bobbins, and during storage, the core wire and the coating may become deformed and flattened due to the load caused by their own weight, or the wire axis may become eccentric and shift from the center of the insulated electric wire. When cutting such a deformed or eccentric insulated electric wire with the above-mentioned type of stripping incision device, when the pair of V-shaped cutter blades are rotated around the axis of the electric wire, the cutting depth of the V-shaped cutter blades varies around the axis of the electric wire. As a result, the incision may be too deep in some places around the axis of the electric wire, cutting into the inside part that should be left, and conversely, may be too shallow in other places, resulting in insufficient cutting.

[0006] In this way, the above-mentioned type of peeling and cutting device, in which a pair of V-shaped cutter blades that clamp the insulated electric wire are rotated around the axis of the wire, has a problem in that the cutting accuracy decreases when cutting thick electric wires or insulated electric wires that are wound on bobbins and stored.

[0007] Therefore, the present invention focuses on the above-mentioned problems and aims to provide a peeling incision device and a peeling incision method that can improve the incision accuracy when used on thick electric wires or insulated electric wires wound on bobbins and stored. [Means for solving the problem]

[0008] In order to solve the above problems, the stripping incision device is provided with one or more incision mechanism parts arranged one-to-one around the axis of an insulated electric wire in which a core wire is covered with an insulating layer or the core wire is covered with the insulating layer and one or more conductor layers laminated inside the insulating layer, and includes a cutting mechanism that makes an incision from the outer circumferential surface of the insulated electric wire to a specified incision depth with each incision mechanism part, a rotating mechanism that rotates the incision mechanism part with the incision made in the insulated electric wire about the axis of the wire to extend the incision about the axis of the wire, thereby making it possible to remove a stripped portion according to the incision depth, and a cutting mechanism that cuts the insulated electric wire at the outermost conductor shallowest from the outer circumferential surface of the insulated electric wire, the cutting mechanism part being arranged one-to-one around the axis of the wire, the incision ... and a power supply connection portion that connects a power supply at a connection position that is further forward than the cutting position made by a cutting mechanism, wherein the cutting mechanism comprises a conductive cutting blade that is movable in a direction intersecting with the outer peripheral surface, a contact detection portion that detects contact between the outermost conductor and the cutting cutter blade based on a current flowing through an electric circuit including the power supply connection portion, the outermost conductor, and the cutting cutter blade, and a cutting movement mechanism that moves the cutting cutter blade in the intersecting direction, and when the contact is detected by the contact detection portion while the cutting cutter blade is moving, adjusts the position of the cutting cutter blade in the intersecting direction to position it in accordance with the cutting depth and makes the incision.

[0009] In addition, in order to solve the above problem, a peeling incision method includes a preparation step of using the above-mentioned peeling incision device to set the insulated electric wire in the peeling incision device and positioning the incision cutter blade at an initial position away from the outer peripheral surface in the crossing direction; a power supply connection step of connecting the power supply at the tip side to the outermost conductor by the power supply connection unit; a first incision step of moving the incision cutter blade until contact between the incision cutter blade and the outermost conductor is detected based on the current; a second incision step of adjusting a position of the incision cutter blade in the crossing direction to a position corresponding to the incision depth and making the incision when the contact detection unit detects the contact during the movement of the incision cutter blade in the first incision step; and a rotation step of rotating the incision mechanism part with the incision made in the insulated electric wire about the electric wire axis to extend the incision about the electric wire axis, thereby making it possible to remove the peeled portion. Effect of the Invention

[0010] According to the above-described stripping incision device and stripping incision method, it is possible to improve the incision accuracy when a thick electric wire or a coated electric wire wound on a bobbin and stored is treated as the target. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram showing a peeling incision device according to one embodiment. [Diagram 2] FIG. 2 is a schematic diagram showing a coated electric wire to be cut by the peeling and cutting device shown in FIG. 1. [Diagram 3] 3 is a cross-sectional view showing a cross section of the covered electric wire shown in FIG. 2 taken along line V11-V11 in FIG. 2. [Figure 4] 2 is a schematic side view showing a cutting mechanism portion of the cutting mechanism and a power supply mechanism portion of the power supply connection portion shown in FIG. 1, respectively, as viewed from the cutting rotation direction. FIG. [Diagram 5]2 is a schematic flowchart showing a series of steps in a peeling incision method for making incisions for peeling at an end of a coated electric wire using the peeling incision device shown in FIG. 1. [Figure 6] 6 is an explanatory diagram for explaining a part of the process in the peeling incision method shown in FIG. 5 by using the peripheral structure of the incision cutter blade and the power cutter blade in the side view of FIG. 4. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of a peeling incision device and a peeling incision method will be described.

[0013] Fig. 1 is a schematic diagram showing a peeling incision device according to one embodiment. Fig. 2 is a schematic diagram showing a covered electric wire to be incised by the peeling incision device shown in Fig. 1. Fig. 3 is a cross-sectional view showing a cross section of the covered electric wire shown in Fig. 2 taken along line V11-V11 in Fig. 2.

[0014] First, the insulated electric wire 2 to be cut in this embodiment is a thick electric wire in which a conductor core wire 21 is covered with multiple layers of coating material, and is stored wound on a bobbin and used for high-voltage wire harnesses for automobiles, etc. The coating material includes an inner coating 22 as an insulating layer made of insulating resin, a braid 23 as a conductor layer, a metal foil 24 as a conductor layer, and an outermost coating 25 as an insulating layer made of insulating resin. The stripping cutting device 1 makes a cut to a specified cutting depth from the outer circumferential surface 2a as end processing for the insulated electric wire 2, thereby making it possible to remove the peeled portion according to the cutting depth.

[0015] For example, the following types of incisions are possible. That is, one example of the incision is to specify the incision depth up to the inner circumference of the metal foil 24 so that the outermost coating 25 and the metal foil 24 are the peeled parts, and to make an incision up to the inner circumference of the metal foil 24. In this example, after peeling, the braid 23 that houses the inner coating 22 and the core wire 21 on the inside is exposed at the end of the insulated electric wire 2. Another example of the incision is to specify the incision depth up to the inner circumference of the inner coating 22 so that all coating materials other than the core wire 21 are the peeled parts, and to make an incision up to the inner circumference of the inner coating 22. In this example, after peeling, the core wire 21 is exposed at the end of the insulated electric wire 2.

[0016] The peeling incision device 1 is a device capable of making such an incision in the insulated electric wire 2, and includes three cutting mechanisms 11, a rotating mechanism 12, and a power supply connection section 13. Three cutting mechanisms 11 are provided so as to have a pair of incision mechanism parts 11a arranged in a plurality (three in this embodiment) around the electric wire axis 2b of the insulated electric wire 2. Each cutting mechanism 11 is a part that makes an incision at a specified incision depth from the outer circumferential surface 2a of the insulated electric wire 2 with each incision mechanism part 11a. In this embodiment, the incision mechanism parts 11a of each of the three cutting mechanisms 11 are arranged at intervals of 120° around the electric wire axis 2b. The rotating mechanism 12 is a part that rotates the three incision mechanism parts 11a in a state in which an incision has been made in the insulated electric wire 2 in a cutting rotation direction D11 around the electric wire axis 2b to extend the incision around the electric wire axis 2b. In this embodiment, the rotation mechanism 12 rotates the three cutting mechanisms 11 by 120° or more in the cutting rotation direction D11 around the wire axis 2b. This rotation connects the three cuts around the wire axis 2b to complete one revolution, making it possible to remove the peeled portion according to the specified cut depth. The power supply connection portion 13 is a portion that connects the power supply 13b to the outermost conductor that is shallowest from the outer circumferential surface 2a of the insulated wire 2 through the only power supply mechanism portion 13b provided.

[0017] The three cutting mechanisms 11 in this peeling incision device 1 have the same configuration as each other, including the incision mechanism part 11a described above, and below, the configuration of each of the cutting mechanisms 11 and the power supply mechanism part 13a of the power supply connection part 13, of which there is originally only one, will be explained.

[0018] FIG. 4 is a schematic side view showing the cutting mechanism portion of the cutting mechanism and the power supply mechanism portion of the power supply connection portion shown in FIG. 1, respectively, as viewed from the cutting rotation direction.

[0019] 1 and 4, the cutting mechanism 11 includes a notching cutter blade 111 and a notching moving mechanism 112 which constitute the notching mechanism part 11a, and a contact detection unit 113. The contact detection unit 113 is a part which detects contact between the outermost conductor of the insulated electric wire 2 and the notching cutter blade 111. In this embodiment in which the insulated electric wire 2 shown in FIGS. 2 and 3 is to be cut, the outermost conductor is the metal foil 24.

[0020] The incising cutter blade 111 is a conductive, disk-shaped blade member movable in a direction intersecting the outer circumferential surface 2a of the insulated electric wire 2. In this embodiment, the incising cutter blade 111 is supported by a cutter frame 112b (described later) of the incising movement mechanism 112 so as to be rotatable about a cutter axis 111a intersecting the intersecting direction D12 along the electric wire axis 2b.

[0021] The incision movement mechanism 112 is a mechanism for moving the incision cutter blade 111 in the cross direction D12. When the contact detection unit 113 detects contact with the metal foil 24 during the movement of the incision cutter blade 111, the incision movement mechanism 112 adjusts the position of the incision cutter blade 111 in the cross direction D12 to a position corresponding to the incision depth. By this positioning after the contact detection, an incision is made in the insulated electric wire 2 according to the incision depth. In this embodiment, the incision movement mechanism 112 has a servo motor 112a capable of precise driving as a driving source. In addition, the incision movement mechanism 112 has a cutter connection frame 112b that is moved in the cross direction D12 by the servo motor 112a and has the incision cutter blade 111 pivotally supported at the tip on the insulated electric wire 2 side. The incision movement mechanism 112 precisely moves the incision cutter blade 111 via the cutter connection frame 112b using a servo motor 112a, thereby causing the incision cutter blade 111 to enter the outer circumferential surface 2a of the insulated electric wire 2 to a specified incision depth.

[0022] As described above, the contact detection unit 113 is a part that detects the contact of the cutting cutter blade 111 with the metal foil 24. This contact detection is performed based on whether or not a current flows from the power source 13b connected by the power supply connection unit 13 as described below due to the construction of an electric circuit CR1 caused by the contact between the metal foil 24 and the cutting cutter blade 111. The detection of the current by the contact detection unit 113 may be performed by detecting the current flowing through the electric circuit CR1 with an ammeter or other sensor, or by opening and closing the contact part of a relay using the current. Various detection methods known in the art may be used for the detection of the current here.

[0023] The power supply connection portion 13 is a portion of the insulated electric wire 2 where a power supply 13b is connected to the metal foil 24 at a connection position P12 located on the tip side of the incision position P11 made by the cutting mechanism 11. The power supply connection portion 13 includes the power supply 13b and a power supply mechanism portion 13a that connects the power supply 13b to the metal foil 24 (outermost conductor) of the insulated electric wire 2.

[0024] The power supply 13b is a DC power supply connected to the power supply mechanism portion 13a and the incising cutter blade 111 of each of the three cutting mechanisms 11. The negative side of the power supply 13b is connected to the incising cutter blade 111, and the positive side is connected to the power supply mechanism portion 13a.

[0025] The power supply mechanism portion 13a includes a power supply cutter blade 131 and a power supply moving mechanism 132. The power supply cutter blade 131 is a disk-shaped blade member substantially similar to the incision cutter blade 111. The power supply cutter blade 131 is supported by a power supply connection frame 132b (described later) of the power supply moving mechanism 132 so as to be rotatable about a cutter axis 131a that intersects with the intersecting direction D12 along the electric wire axis 2b.

[0026] The power source moving mechanism 132 is a mechanism for moving the power source cutter blade 131 in the intersecting direction D12 relative to the outer peripheral surface 2a of the insulated electric wire 2. The power source moving mechanism 132 moves the power source cutter blade 131 in the intersecting direction D12 to cut into the outer peripheral surface 2a, thereby contacting the metal foil 24 (outermost conductor). In this embodiment, the power source moving mechanism 132 has a servo motor 132a capable of precise driving as a driving source. The power source moving mechanism 132 also has a power source connection frame 132b which is moved in the intersecting direction D12 by the servo motor 132a and has the power source cutter blade 131 journaled at its tip on the insulated electric wire 2 side. The power source moving mechanism 132 precisely moves the power source cutter blade 131 via the power source connection frame 132b by the servo motor 132a, thereby causing the power source cutter blade 131 to bite into the insulated electric wire 2 and contact the metal foil 24. The power supply 13b is connected to the metal foil 24 by the contact between the power supply cutter blade 131 and the metal foil 24.

[0027] When the notching cutter blade 111 of each cutting mechanism 11 cuts into the metal foil 24 while the power source 13b is connected in this manner, an electric circuit CR1 including the power source connection unit 13, the metal foil 24, and the notching cutter blade 111 is established, and a current flows. This current is detected by the contact detection unit 113, and thus contact between the notching cutter blade 111 in each cutting mechanism 11 and the metal foil 24 is detected. After this detection, the notching movement mechanism 112 in each cutting mechanism 11 adjusts the position of the notching cutter blade 111 to a position according to the specified cutting depth, and a cut of that cutting depth is made in the insulated electric wire 2.

[0028] With the three cutting mechanisms 11 making the incisions in this manner, the rotation mechanism 12 rotates the incision mechanism part 11a around the wire axis 2b to extend the incisions around the wire axis 2b, thereby making it possible to remove the peeled portion according to the specified incision depth.

[0029] Next, the peeling incision method for making incisions for peeling at the end of the insulated electric wire 2 using the peeling incision device 1 described above will be explained below with reference to another figure, although some of the explanation will overlap with what has been explained so far.

[0030] Fig. 5 is a schematic flow chart showing a series of steps in a method for making incisions for peeling at the end of a coated electric wire using the device for peeling shown in Fig. 1. Fig. 6 is an explanatory diagram for explaining a part of the steps in the method for peeling shown in Fig. 5 by using the peripheral structure of the cutter blade for incision and the cutter blade for power supply shown in the side view of Fig. 4.

[0031] 5 starts when the insulated electric wire 2 to be incised is prepared. When the process starts, a preparation step S11 is first performed. In the preparation step S11, the insulated electric wire 2 is set in the peeling incision device 1, and the three incision cutter blades 111 are positioned at an initial position P13 away from the outer circumferential surface 2a of the insulated electric wire 2. In this embodiment, in the preparation step S11, one power cutter blade 131 is also positioned at an initial position P14 away from the outer circumferential surface 2a.

[0032] Following the preparation step S11, the power source connection step S12 is performed by the power source connection unit 13. In the power source connection step S12, the power source connection unit 13 connects the power source 13b at a connection position P12 on the tip side of the insulated electric wire 2. As described above, this connection of the power source 13b is performed by the power source movement mechanism 132 cutting the power source cutter blade 131 from the outer circumferential surface 2a to the metal foil 24. The cutting amount of the power source cutter blade 131 at this time is a cutting amount that is preset in accordance with the thickness of the outermost coating 25.

[0033] Next, a first cutting step S13 is performed in which the cutting movement mechanism 112 moves the cutting cutter blade 111 as follows. In this first cutting step S13, a cutter movement step S131 at the cutting position P11 and a contact determination step S132 based on current detection in the electric circuit CR1 are repeatedly performed. In the contact determination step S132, the contact detection unit 113 determines whether or not a current has flowed through the electric circuit CR1 due to the energization caused by the contact between the cutting cutter blade 111 and the metal foil 24. If no current is detected (NO determination), the cutting cutter blade 111 is not in contact with the metal foil 24, which is the outermost conductor, so the cutter movement step S131 is repeated. If a current is detected (YES determination), the cutting cutter blade 111 is in contact with the metal foil 24, so the process proceeds to the next second cutting step S14.

[0034] In the second cutting step S14, after the contact between the cutting cutter blade 111 and the metal foil 24 is detected by the contact detection unit 113, the position of the cutting cutter blade 111 in the cross direction D12 is adjusted to a position according to the specified cutting depth t11, and the cutting is made. As described above, when the specified cutting depth t11 is up to the metal foil 24, the movement of the cutting cutter blade 111 is stopped at the time of contact detection. Also, when the cutting depth t11 is up to the braid 23, the cutting cutter blade 111 is fed out by the thickness of the metal foil 24 from the time of contact detection, and then the movement of the cutting cutter blade 111 is stopped. In the second cutting step S14, after the contact between the cutting cutter blade 111 and the metal foil 24 is detected, the position of the cutting cutter blade 111 is adjusted in this way, and the cutting is made.

[0035] When the second incision step S14 is performed for each of the three cutting mechanisms 11, the incision is finally extended by the rotation step S15. In this rotation step S15, the incision mechanism parts 11a of the three cutting mechanisms 11, which have made an incision in the insulated electric wire 2, are rotated by the rotation mechanism 12 by 120° or more around the electric wire axis 2b. This rotation extends the three incisions around the electric wire axis 2b and connects them to each other, and a incision is formed around the electric wire axis 2b at the end of the insulated electric wire 2. This incision formation around the entire circumference makes it possible to remove the peeled portion according to the specified incision depth t11, and this completes the series of processes of the incision method for peeling. After this, the removable peeled portion is removed, and the inside is exposed. The removal of the peeled portion may be performed manually by an operator, or may be performed using a dedicated removal device.

[0036] The peeling incision device 1 and the peeling incision method according to the embodiment described above can achieve the following effects. That is, in this embodiment, when the incision cutter blade 111 makes an incision for peeling, the contact between the metal foil 24 and the incision cutter blade 111 is detected based on the current flowing through the electric circuit CR1 including the power supply connection portion 13, the metal foil 24, and the incision cutter blade 111. Then, after the detection, the position of the incision cutter blade 111 is adjusted to a position according to the specified incision depth t11, and an incision of the incision depth t11 is made. According to this configuration, the position where the incision cutter blade 111 actually comes into contact with the metal foil 24 of the insulated electric wire 2 becomes the reference for the subsequent feeding of the incision cutter blade 111. By setting such a feed reference, even in the case of a thick electric wire, the influence of the stacking tolerance regarding the thickness of each insulated material can be suppressed, and the incision accuracy can be improved. Furthermore, even when the insulated electric wire 2 is deformed or eccentric due to being wound around a bobbin and stored, the incision cutter blade 111 is actually brought into contact with the metal foil 24 before being unwound, so that the influence of deformation or eccentricity can be suppressed and the incision accuracy can be improved. Thus, according to this embodiment, the incision accuracy can be improved when a thick electric wire or an insulated electric wire 2 wound around a bobbin and stored is targeted. Furthermore, according to this embodiment, when a thick electric wire is targeted, a wide incision can be made up to the desired coating material by appropriately setting the incision depth t11.

[0037] In this embodiment, the cutting movement mechanism 112 has a servo motor 112a, and the servo motor 112a moves the cutting cutter blade 111. According to this configuration, the cutting precision can be further improved by precisely moving the cutting cutter blade 111 by the servo motor 112a.

[0038] In this embodiment, the power supply connection unit 13 includes a conductive power supply cutter blade 131 electrically connected to the power supply 13b, and a power supply movement mechanism 132 that moves the power supply cutter blade 131 to cut into the outer peripheral surface 2a and bring it into contact with the metal foil 24. With this configuration, the power supply cutter blade 131 cuts into the outer peripheral surface 2a of the insulated electric wire 2 to bring it into contact with the metal foil 24, and the power supply 13b can be effectively connected. At this time, the connection position P12 of the power supply 13b made by the cut of the power supply cutter blade 131 is on the tip side of the cut position P11 made by the cutting mechanism 11, and is subject to cutting after peeling, so there is no need to take care of the cut marks when connecting the electric wire.

[0039] In this embodiment, the power supply moving mechanism 132 has a servo motor 132a, which moves the power supply cutter blade 131. With this configuration, the power supply cutter blade 131 can be precisely moved by the servo motor 132a, thereby further improving the cutting accuracy for the power supply connection.

[0040] The above-described embodiment merely shows a representative form of the peeling incision device and the peeling incision method. The peeling incision device and the peeling incision method are not limited to the above and can be modified in various ways.

[0041] For example, in the above-described embodiment, the insulated electric wire 2 used in a high voltage wire harness for an automobile or the like is illustrated as an example of the insulated electric wire to be cut for peeling. However, the insulated electric wire to be cut is not limited to this, and the specific mode of use is not limited to this.

[0042] In the above-described embodiment, the insulated electric wire 2 is a thick electric wire in which the conductor core wire 21 is covered with multiple layers of coating material, as an example of the insulated electric wire to be cut for stripping. In addition, the insulating resin inner coating 22, the conductor braid 23, the conductor metal foil 24, and the insulating resin outermost coating 25 are exemplified as examples of the multiple-layer coating material. However, the insulated electric wire to be cut is not limited to this, and the core wire may be covered with one layer of resin coating, and even in the case of a thick electric wire, the specific layer structure of the multiple layers of coating material is not limited. In the case of a simple insulated electric wire in which the core wire is covered with one layer of resin coating, the outermost conductor that is shallowest from the outer circumferential surface is the core wire.

[0043] In the above-described embodiment, three cutting mechanisms 11 each having three cutting mechanism parts 11a arranged at intervals of 120° around the wire axis 2b of the insulated electric wire 2 are exemplified as an example of the cutting mechanism. However, the cutting mechanism is not limited to this, and the specific number and arrangement of the cutting mechanisms can be arbitrarily set as long as one or more mechanism parts are arranged around the wire axis of the insulated electric wire.

[0044] In the above-described embodiment, the incision moving mechanism 112 that moves the incision cutter blade 111 with the servo motor 112a is exemplified as an example of the incision moving mechanism. However, the incision moving mechanism is not limited to this, and a general motor, cylinder mechanism, or the like may be adopted as a drive source. However, as described above, by adopting the servo motor 112a as the drive source in the incision moving mechanism 112, the incision accuracy can be further improved.

[0045] In the above-described embodiment, the power supply connection unit 13 is exemplified as an example of the power supply connection unit, in which the power supply cutter blade 131 connected to the power supply 13b is cut into the outer peripheral surface 2a by the power supply moving mechanism 132 and brought into contact with the metal foil 24 (outermost conductor) to connect the electric wire 13b. However, the power supply connection unit is not limited to this, and any mechanism can be adopted as the specific connection mechanism as long as the power supply is connected to the outermost conductor of the insulated electric wire at a connection position on the tip side of the cut position by the cutting mechanism. However, as described above, the power supply 13b can be effectively connected by cutting the power supply cutter blade 131 into the outer peripheral surface 2a of the insulated electric wire and bringing it into contact with the metal foil 24.

[0046] In the above embodiment, the power source moving mechanism 132 that moves the power source cutter blade 131 by the servo motor 132a is exemplified as an example of the power source moving mechanism. However, the power source moving mechanism is not limited to this, and a general motor, cylinder mechanism, etc. may be adopted as a driving source. Unlike the above-mentioned incision moving mechanism, the power source moving mechanism is permissible even if the power source cutter blade is slightly embedded in the inner structure as long as it reliably contacts the outermost conductor of the insulated electric wire. For this reason, the possibility of adopting a general motor, cylinder mechanism, etc. is higher for the power source moving mechanism than for the incision moving mechanism. However, as described above, the power source moving mechanism 132 can further improve the incision accuracy for the power source connection by adopting the servo motor 132a as a driving source. [Explanation of symbols]

[0047] 1 Peeling incision device 2. Insulated wire 2a Outer surface 2b Wire shaft 11 Cutting mechanism 11a Cutting mechanism 12 Rotation mechanism 13 Power Connection 13a Power supply part 13b power supply 21 Core Wire 22 Internal coating 23 Braid 24 Metal foil 25 Outermost coating 111 Cutting cutter blade 111a, 131a Cutter shaft 112 Cutting movement mechanism 112a, 132a Servo motor 112b Cutter connecting frame 113 Contact detection unit 131 Power cutter blade 132 Power supply moving mechanism 132b Power Connection Frame CR1 Electrical circuit D11 Cutting rotation direction D12 Cross direction P11 Cutting position P12 Connection position P13,P14 Initial position S11 Preparation process S12 Power supply connection process S13 First cutting process S14 Second cutting process S15 Rotation process S131 Cutter movement process S132 Contact determination process t11 cutting depth

Claims

1. a cutting mechanism that is provided in a pair with one or more cutting mechanism parts arranged around the axis of a coated electric wire in which a core wire is covered with an insulating layer or the core wire is covered with the insulating layer and one or more conductor layers laminated inside the insulating layer, and that cuts a specified cutting depth from the outer circumferential surface of the coated electric wire with each cutting mechanism part; a rotation mechanism that rotates the cutting mechanism part with the incision made in the insulated electric wire about the electric wire axis to extend the incision about the electric wire axis, thereby removing a peeled portion according to the incision depth; a power source connection portion that connects a power source to an outermost conductor of the insulated electric wire that is shallowest from the outer circumferential surface of the insulated electric wire at a connection position on a tip side of a cut position of the insulated electric wire by the cutting mechanism; Equipped with The cutting mechanism is a conductive cutter blade movable in a direction intersecting the outer circumferential surface; a contact detection unit that detects contact between the outermost conductor and the notching cutter blade based on a current flowing through an electric circuit including the power supply connection unit, the outermost conductor, and the notching cutter blade; a cutting movement mechanism that moves the cutter blade in the cross direction, and when the contact detection unit detects the contact during the movement of the cutter blade, adjusts the position of the cutter blade in the cross direction to a position corresponding to the cutting depth and makes the cut; A cutting device for peeling, comprising:

2. 2. The cutting device for peeling according to claim 1, wherein the cutting movement mechanism has a servo motor and is a mechanism for moving the cutting cutter blade by the servo motor.

3. the power connection portion comprises the power source and a power mechanism portion connecting the power source to the outermost conductor; The power supply portion comprises: a conductive cutter blade for a power source electrically connected to the power source and movable in the cross direction; a power supply moving mechanism that moves the power supply cutter blade in the intersecting direction, the power supply cutter blade being moved to cut into the outer peripheral surface and come into contact with the outermost conductor; The peeling incision device according to claim 1, further comprising:

4. 4. The cutting device for peeling according to claim 3, wherein the power source moving mechanism has a servo motor and is a mechanism for moving the power source cutter blade by the servo motor.

5. A preparation step of using the peeling incision device according to any one of claims 1 to 4, setting the coated electric wire in the peeling incision device, and positioning the incision cutter blade in an initial position away from the outer circumferential surface in the cross direction; a power supply connecting step of connecting the power supply to the outermost conductor at the tip side by the power supply connecting portion; a first cutting step of moving the cutting cutter blade until contact between the cutting cutter blade and the outermost conductor is detected based on the current; a second cutting step of adjusting a position of the cutting cutter blade in the cross direction to a position corresponding to the cutting depth when the contact is detected by the contact detection unit during the movement of the cutting cutter blade in the first cutting step, and making the cut; a rotating step of rotating the cutting mechanism part with the cut made in the insulated electric wire about an axis of the electric wire to extend the cut about the axis of the electric wire, thereby making it possible to remove the peeled portion; A peeling incision method comprising the steps of:

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