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 stopper 111 that can be moved closer to or further away from an outer surface 2a of a covered wire 2, an energizing part 112 that energizes the stopper 111, a cutter blade 113, a stopper movement mechanism 114 that moves the stopper 111 together with the cutter blade 113 when making a cut, causing the stopper 111 to come into contact with an outer surface 2a, and a cutter movement mechanism 115 that, after the stopper 111 has made contact, moves the cutter blade 113 to a position corresponding to the specified cutting depth and makes a cut.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, a peeling incision device includes one or more cutting mechanisms arranged around an axis of a covered electric wire, the cutting mechanisms making an incision from an outer peripheral surface of the covered electric wire to a specified incision depth, and a rotating mechanism for rotating the cutting mechanism, having made the incision in the covered electric wire, around the axis of the electric wire to extend the incision around the axis of the electric wire, thereby making it possible to remove a peeled portion according to the incision depth, wherein the cutting mechanism includes a stopper that can be brought into contact with and separated from the outer peripheral surface in a cross direction that crosses the outer peripheral surface, a biasing portion that biases the stopper in the cross direction toward the outer peripheral surface, and a biasing portion that can move together with the stopper in the cross direction and can be moved against the stopper. a cutter blade that is movable relative to the cutter blade, and a stopper movement mechanism that moves the stopper together with the cutter blade in the intersecting direction, and during cutting, moves the stopper together with the cutter blade positioned at a predetermined cutter initial position to bring the stopper into contact with the outer peripheral surface; and a cutter movement mechanism that moves the cutter blade relative to the stopper in the intersecting direction, and positions the cutter blade at the cutter initial position before the stopper comes into contact with the outer peripheral surface, and after the stopper comes into contact, advances the cutter blade from the cutter initial position to a position corresponding to the cutting depth to make the cut.

[0009] In addition, in order to solve the above-mentioned 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, positioning the cutter blade in the cutter initial position, and positioning the stopper in a stopper initial position away from the outer peripheral surface; a stopper abutment step of abutting the stopper against the outer peripheral surface; a cutting step of extending the cutter blade to a position corresponding to the cutting depth after the stopper abuts, thereby making the incision; and a rotation step of rotating the cutting mechanism with the incision made in the insulated electric wire about the wire axis to extend the incision about the 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 the cutting mechanism shown in FIG. 1 as viewed from the cutting rotation direction. [Diagram 5] 5 is a schematic flowchart showing a series of process steps in a peeling incision method for making incisions for peeling at an end of a coated electric wire using the peeling incision device 1 shown in FIGS. 1 and 4. [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 stopper roller and the 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 of insulating resin, a conductor braid 23, a metal foil 24 of the conductor, and an outermost coating 25 of insulating resin. The stripping cutting device 1 makes a cut to a specified cutting depth from the outer circumferential surface 2a as an end treatment 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 and a rotating mechanism 12. The three cutting mechanisms 11 are arranged around the wire axis 2b of the insulated electric wire 2, and are a mechanism that makes an incision at a specified incision depth from the outer peripheral surface 2a of the insulated electric wire 2. In this embodiment, these three cutting mechanisms 11 are arranged at intervals of 120° around the wire axis 2b. The rotating mechanism 12 is a mechanism that rotates the three cutting mechanisms 11 that have made an incision in the insulated electric wire 2 in a cutting rotation direction D11 around the wire axis 2b to extend the incision around the wire axis 2b. In this embodiment, the rotating 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.

[0017] The three cutting mechanisms 11 in this peeling incision device 1 have the same configuration, and the configuration of one cutting mechanism 11 will be described below.

[0018] FIG. 4 is a schematic side view showing the cutting mechanism shown in FIG. 1 as viewed from the cutting rotation direction.

[0019] As shown in FIGS. 1 and 4, the cutting mechanism 11 includes a stopper 111, a biasing portion 112, a cutter blade 113, a stopper moving mechanism 114, and a cutter moving mechanism 115.

[0020] The stopper 111 is a portion that can come into contact with and separate from the outer circumferential surface 2a of the insulated electric wire 2 in a transverse direction D12 that intersects with the outer circumferential surface 2a of the insulated electric wire 2. As shown in Fig. 4, the stopper 111 has a stopper frame 111a extending in the transverse direction D12 and a stopper roller 111b. The stopper roller 111b is a disk member that is journaled at the end of the stopper frame 111a on the insulated electric wire 2 side so as to be rotatable around a roller axis 111b-1 that intersects with the transverse direction D12 along the electric wire axis 2b.

[0021] The biasing portion 112 is a portion that biases the stopper 111 in the transverse direction D12 toward the outer circumferential surface 2a of the coated electric wire 2. The biasing portion 112 includes a biasing frame 112a that holds the stopper frame 111a of the stopper 111 movably in the transverse direction D12, and a compression spring 112b that biases the stopper frame 111a in the transverse direction D12. The biasing frame 112a faces the eaves portion 111a-1 that protrudes on the side opposite to the coated electric wire 2 in the stopper frame 111a and holds the cutter moving mechanism 115, and is provided with a spring eaves receiving portion 112a-1 that holds the compression spring 112b between the eaves portion 111a-1 and the biasing frame 112a. The compression spring 112b is a coil spring that is attached in a compressed state between the eaves portion 111a-1 of the stopper frame 111a and the spring eaves receiving portion 112a-1 of the biasing frame 112a. The compression spring 112b biases the overhanging portion 111a-1 of the stopper frame 111a, thereby biasing the stopper roller 111b toward the outer circumferential surface 2a of the coated electric wire 2.

[0022] The cutter blade 113 is a disk-shaped blade member that is movable together with the stopper 111 in the intersecting direction D12 and is also movable relatively to the stopper 111. In this embodiment, the cutter blade 113 is rotatably supported on a cutter frame 115b (described later) of the cutter moving mechanism 115 around a cutter shaft 113a that is provided parallel to the roller shaft 111b-1 so as to intersect with the intersecting direction D12 along the electric wire axis 2b.

[0023] The stopper moving mechanism 114 is a mechanism that moves the stopper 111 in the transverse direction D12 together with the cutter blade 113. During cutting, the stopper moving mechanism 114 moves the stopper 111 together with the cutter blade 113 positioned at a predetermined cutter initial position P11, and brings the stopper roller 111b of the stopper 111 into contact with the outer circumferential surface 2a of the insulated electric wire 2. The stopper moving mechanism 114 has a predetermined driving source 114a and a stopper connecting frame 114b that is moved in the transverse direction D12 by the driving source 114a and is connected to the stopper 111 via the urging frame 112a in the urging portion 112.

[0024] The cutter movement mechanism 115 is a mechanism for moving the cutter blade 113 relative to the stopper 111 in the cross direction D12. First, the cutter movement mechanism 115 positions the cutter blade 113 at the cutter initial position P11 before the stopper 111 abuts against the outer circumferential surface 2a of the insulated electric wire 2. Then, after the stopper 111 abuts against the outer circumferential surface 2a of the insulated electric wire 2, the cutter blade 113 is advanced from the cutter initial position P11 to a position according to a specified cutting depth to make a cut. In this embodiment, the cutter movement mechanism 115 has a servo motor 115a capable of precision driving as a driving source. The cutter movement mechanism 115 also has a cutter connection frame 115b that is moved in the cross direction D12 by the servo motor 115a and has the cutter blade 113 pivotally supported at the tip on the insulated electric wire 2 side. The cutter moving mechanism 115 precisely moves the cutter blade 113 via the cutter connecting frame 115b using the servo motor 115a, thereby causing the cutter blade 113 to enter the outer circumferential surface 2b of the insulated electric wire 2 to a specified cutting depth. When the stopper moving mechanism 114 brings the stopper roller 111b into contact with the outer circumferential surface 2a, the movement of the stopper 111 is absorbed by the compression spring 112b of the biasing part 112 acting as an interference member, so that the movement of the stopper 111 does not need to be as precise as the movement of the cutter blade 113, and a general motor, cylinder mechanism, or the like that is less precise than the servo motor 115a but is inexpensive is used as the drive source 114a of the stopper moving mechanism 114.

[0025] 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.

[0026] 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 incision device 1 for peeling shown in Fig. 1 and Fig. 4. 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 stopper roller and the cutter blade in the side view of Fig. 4 and their surrounding structures.

[0027] The process of the peeling incision method shown in Fig. 5 starts when the insulated electric wire 2 to be incised is prepared. When the process starts, a preparation step S11 is first executed. In the preparation step S11, the insulated electric wire 2 is set in the peeling incision device 1, and the stopper 111 and the cutter blade 113 are positioned with respect to the insulated electric wire 2 for each of the three cutting mechanisms 11. That is, the cutter blade 113 is positioned at a cutter initial position P11, and the stopper 111 is positioned at a stopper initial position P12 separated from the outer circumferential surface 2a. The cutter initial position P11 is a position where the periphery of the cutter blade 113 is farther from the insulated electric wire 2 than the periphery of the stopper roller 111b of the stopper 111.

[0028] Following the preparation step S11, a stopper abutment step S12 in which the stopper roller 111b of the stopper 111 is brought into abutment with the outer peripheral surface 2a of the insulated electric wire 2 is executed by moving the stopper 111 with the stopper movement mechanism 114. At this time, the cutter blade 113 positioned at the cutter initial position P11 in the preparation step S11 is separated from the outer peripheral surface 2a even if the stopper roller 111b abuts against the outer peripheral surface 2a. Also, in the stopper abutment step S12, the stopper 111 is moved toward the outer peripheral surface 2a against the biasing force of the biasing part 112 to such an extent that the stopper 111 is pushed back slightly. At this time, the cutter blade 113 is also moved integrally with the stopper 111.

[0029] After the stopper 111 comes into contact with the stopper in the stopper abutment step S12, a cutting step S13 is executed in which the cutter blade 113 is fed out to make a cut in the insulated electric wire 2. In the cutting step S13, the cutter blade 113 is fed out by the cutter movement mechanism 115 by a feed amount L11 from the cutter initial position P11 to the cutting position P13 according to the specified cutting depth t11. In the cutting step S13, only the cutter blade 113 is moved without moving the stopper 111.

[0030] When the incision step S13 is performed for each of the three cutting mechanisms 11, the incision is finally extended by the rotation step S14. In this rotation step S14, 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.

[0031] 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, the actual outer peripheral surface 2a of the insulated electric wire 2 is specified by the abutment of the stopper 111, and the cutter blade 113 is advanced in the cutting mechanism 11 so as to bite into the outer peripheral surface 2a at a cutting depth t11 based on the specified outer peripheral surface 2a. Thereafter, the cutting mechanism 11 is rotated around the electric wire axis 2b to form an incision over the entire circumference that allows the peeled portion to be removed. Since the actual outer peripheral surface 2a specified by the abutment of the stopper 111 becomes the reference for advancing the cutter blade 113, the influence of the build-up tolerance regarding the thickness of each coating material can be suppressed and the incision accuracy can be improved even in the case of a thick electric wire. In addition, in this embodiment, when the covered electric wire 2 that has been deformed or eccentric due to being wound around a bobbin and stored is targeted, the stopper 111, which is biased toward the outer peripheral surface 2a by the biasing unit 112, moves in the cross direction D12 tracing the outer peripheral surface 2a when the cutting mechanism 11 rotates. Then, the stopper 111 moves under the bias, so that the actual outer peripheral surface 2a is identified without being affected by deformation or eccentricity, and by using the outer peripheral surface 2a as a reference, the variation of the cutting depth t11 during the rotation of the cutting mechanism 11 can be suppressed and the cutting accuracy can be improved. In this way, according to this embodiment, the cutting accuracy can be improved when a thick electric wire or a covered electric wire 2 that has been wound around a bobbin and stored is targeted. In addition, according to this embodiment, when a thick electric wire is targeted, by appropriately setting the designation of the cutting depth t11, a wide range of cutting, such as only the outermost coating 25, up to the metal foil 24, up to the braid 23, up to the inner coating 22, etc., can be performed without changing the device structure.

[0032] In this embodiment, the stopper 111 has a stopper roller 111b that is rotatable around a roller axis 111b-1 that intersects with the intersecting direction D12 along the electric wire axis 2b. The stopper 111 abuts against the outer circumferential surface 2a with the stopper roller 111b. With this configuration, by providing the rotatable stopper roller 111b, when the cutting mechanism 11 is rotated by the rotation mechanism 12, the stopper 111 and the cutting mechanism 11 can be made to smoothly follow the outer circumferential surface 2a of the insulated electric wire 2.

[0033] In this embodiment, the biasing portion 112 biases the stopper 111 by applying a biasing pressure from the side opposite to the outer circumferential surface 2a of the stopper 111 in the intersecting direction D12. With this configuration, the up and down movement of the stopper 111 and the cutting mechanism 11 following the outer circumferential surface 2a of the insulated electric wire 2 in the intersecting direction D12 can be effectively absorbed.

[0034] In this embodiment, the cutter moving mechanism 115 has a servo motor 115a. The cutter moving mechanism 115 is a mechanism that uses the servo motor 115a to move the cutter blade 113. With this configuration, the cutter blade 113 can be precisely moved by the servo motor 115a, thereby further improving the cutting accuracy.

[0035] 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.

[0036] For example, in the above-described embodiment, the insulated electric wire 2 used in a high voltage wire harness for an automobile is illustrated as an example of the insulated electric wire to be cut for stripping. However, the insulated electric wire to be cut is not limited to this, and there is no restriction on the specific mode of use as long as the core wire is covered with a coating material.

[0037] 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, an inner insulating resin coating 22, a conductor braid 23, a conductor metal foil 24, and an outermost insulating resin 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.

[0038] In the above-described embodiment, three cutting mechanisms 11 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 cutting mechanisms are arranged around the wire axis of the insulated electric wire.

[0039] In the above-described embodiment, the stopper 111 that abuts against the outer peripheral surface 2a with the stopper roller 111b is exemplified as an example of the stopper. However, the stopper is not limited to this, and may be a stopper formed in a rod shape or a strip shape that abuts against the outer peripheral surface 2a of the insulated electric wire 2 at its tip without including a stopper roller. However, as described above, the stopper 111 and the cutting mechanism 11 can be smoothly moved to the outer peripheral surface 2a of the insulated electric wire 2 by abutting against the outer peripheral surface 2a with the stopper roller 111b.

[0040] In the above-described embodiment, the biasing portion 112 that biases the stopper 111 by applying a biasing pressure from the side opposite to the outer peripheral surface 2a of the stopper 111 is exemplified as an example of the biasing portion. However, the biasing portion is not limited to this, and any specific biasing mode can be adopted as long as it biases the stopper in the cross direction toward the outer peripheral surface. However, as described above, the biasing portion 112 that biases the stopper 111 with a biasing pressure from the side opposite to the outer peripheral surface 2a can effectively absorb the up and down movement of the stopper 111 and the cutting mechanism 11 that follows the outer peripheral surface 2a. In the present embodiment, the biasing portion uses the compression spring 112b that is a coil spring attached in a compressed state between the eaves portion 111a-1 of the stopper frame 111a and the spring eaves portion 112a-1 of the biasing frame 112a as an example of how to apply the biasing pressure. However, the method of applying the biasing pressure is not limited to the use of a compression spring, and the biasing pressure may be applied using a damper mechanism that utilizes air pressure or hydraulic pressure, etc. Furthermore, even when a compression spring is used, it is not limited to a coil spring, and any spring such as a leaf spring may be used, and the spring mounting structure may adopt any structure according to the type of spring.

[0041] In the above-described embodiment, the cutter moving mechanism 115 that moves the cutter blade 113 with the servo motor 115a is exemplified as an example of the cutter moving mechanism. In addition, the stopper moving mechanism 114 in which an inexpensive general motor, cylinder mechanism, or the like is adopted as the drive source 114a is exemplified as an example of the stopper moving mechanism. However, the cutter moving mechanism and the stopper moving mechanism are not limited to this, and both mechanisms may adopt a servo motor as the drive source, or both mechanisms may adopt a motor, cylinder mechanism, or the like as the drive source. However, as described above, by adopting the servo motor 115a as the drive source in the cutter moving mechanism 115, the cutting accuracy can be further improved. In addition, by adopting an inexpensive general motor, cylinder mechanism, or the like as the drive source in the stopper moving mechanism 114, the cost of the entire device can be reduced. [Explanation of symbols]

[0042] 1 Peeling incision device 2. Insulated wire 2a Outer surface 2b Wire shaft 11 Cutting mechanism 12 Rotation mechanism 21 Core Wire 22 Internal coating 23 Braid 24 Metal foil 25 Outermost coating 111 Stopper 111a Stopper frame 111a-1 Eaves 111b Stopper roller 111b-1 Roller shaft 112 energizing section 112a energizing frame 112a-1 Spring receiving part 112b Compression spring 113 Cutter blade 113a Cutter shaft 114 Stopper movement mechanism 114a Driving source 114b Stopper connecting frame 115 Cutter movement mechanism 115a Servo motor 115b Cutter connecting frame D11 Cutting rotation direction D12 Cross direction L11 Feed amount P11 Cutter initial position P12 Stopper initial position P13 Cutting position S11 Preparation process S12 Stopper contact process S13 Cutting process S14 Rotation process t11 cutting depth

Claims

1. one or more cutting mechanisms arranged around an axis of the insulated electric wire, the cutting mechanisms making a cut from an outer peripheral surface of the insulated electric wire to a specified cutting depth; and a rotation mechanism that rotates the cutting mechanism, which has made the incision 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, The cutting mechanism is a stopper that is movable toward and away from the outer circumferential surface in a direction intersecting the outer circumferential surface; a biasing portion that biases the stopper toward the outer circumferential surface in the intersecting direction; a cutter blade that is movable together with the stopper and also relatively to the stopper in the intersecting direction; a stopper movement mechanism which moves the stopper together with the cutter blade in the intersecting direction, and moves the stopper together with the cutter blade positioned at a predetermined cutter initial position during cutting, thereby bringing the stopper into contact with the outer circumferential surface; a cutter movement mechanism which moves the cutter blade relative to the stopper in the intersecting direction, and which positions the cutter blade at the cutter initial position before the stopper comes into contact with the outer circumferential surface, and advances the cutter blade from the cutter initial position to a position according to the cutting depth after the stopper comes into contact, thereby making the cut; A cutting device for peeling, comprising:

2. The peeling incision device according to claim 1, characterized in that the stopper has a stopper roller that is rotatable around a roller axis that intersects with the intersecting direction along the electric wire axis, and the stopper roller abuts against the outer circumferential surface.

3. The peeling incision device according to claim 1, characterized in that the biasing portion biases the stopper by applying a biasing pressure from a side of the stopper opposite to the outer circumferential surface side in the intersecting direction.

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

5. A preparation step of using the incision device for peeling according to any one of claims 1 to 4, setting the insulated electric wire in the incision device for peeling, positioning the cutter blade in the cutter initial position, and positioning the stopper in a stopper initial position away from the outer circumferential surface; a stopper abutting step of abutting the stopper on the outer circumferential surface; a cutting step of, after the stopper is abutted against the cutter blade, extending the cutter blade to a position corresponding to the cutting depth to make the cut; a rotating step of rotating the cutting mechanism with the incision made in the insulated electric wire about an axis of the electric wire to extend the incision 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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