Peeling incision device and peeling incision method

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 stripping device and a stripping method for making cuts from the outer surface of a coated electric wire to strip it. [Background technology]

[0002] Conventionally, stripping has been widely performed as one of the end treatments for insulated electric wires, in which the covering is removed to expose the conductor such as the core wire inside. For this stripping, a stripping incision device is known that can remove the stripped portion by making an incision from the outer surface of the insulated 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 insulated electric wire so as to bite into the outer surface are rotated around the axis of the electric wire to form the incision for stripping. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-350324 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, the insulated electric wire includes a thick electric wire having multiple layers of coating material, such as an inner coating, a braid, a metal foil, and an outer coating, stacked around a core wire. In many cases of the above-mentioned stripping incision device, the reference point for the movement of the V-shaped cutter blade when clamping the insulated electric wire is set to the wire axis, and the destination position of the V-shaped cutter blade is specified as the distance from the wire axis. The V-shaped cutter blade is then moved toward the wire axis to bite into the insulated electric wire at a cutting depth corresponding to the specified destination position, thereby clamping the insulated electric wire. For example, when the above-mentioned thick electric wire is to be incised, the destination position of the V-shaped cutter blade is specified as the distance from the wire axis calculated 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 multiple layers of coating material. In this case, with thick electric wires, the tolerance of the destination position of the V-shaped cutter blade relative to the 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, resulting in insufficient cutting for stripping.

[0005] Furthermore, many insulated electric wires are stored wound on bobbins. During storage, the load caused by their own weight can cause the core wire and / or insulation to deform and become flattened, or the wire axis to become eccentric and shift from the center of the insulated electric wire. When such a deformed or eccentric insulated electric wire is incised using the above-mentioned type of stripping incision device, the depth of the incision made by the V-shaped cutter blades varies around the wire axis when the pair of V-shaped cutter blades are rotated around the wire axis. As a result, the incision may be too deep in some places around the wire axis, reaching parts of the interior that should be left intact, or too shallow in other places, resulting in insufficient incision.

[0006] As described above, the above-mentioned type of stripping cutting device, which rotates a pair of V-shaped cutter blades that clamp the insulated electric wire around the axis of the electric wire, has the problem 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 stripping cutting device and a stripping cutting method that can improve the cutting accuracy when used on thick electric wires or coated electric wires wound on bobbins and stored. [Means for solving the problem]

[0008] In order to solve the above problems, a stripping notching device includes one or more cutting mechanisms arranged around the wire axis of an insulated electric wire, and making a notch from an outer peripheral surface of the insulated electric wire to a specified cutting depth, and a rotation mechanism that rotates the cutting mechanism, having made the notch in the insulated electric wire, around the wire axis to extend the notch around the wire axis, thereby making it possible to remove a stripped portion according to the cutting 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 part that biases the stopper in the cross direction toward the outer peripheral surface, and a biasing part that can move together with the stopper in the cross direction and can move against the stopper. a stopper movement mechanism which moves the stopper together with the cutter blade in the intersecting direction, and which, when cutting, moves the stopper together with the cutter blade positioned at a predetermined cutter initial position, causing the stopper to abut against the outer peripheral surface; and a cutter movement mechanism which moves the cutter blade in the intersecting direction relative to the stopper, and which positions the cutter blade at the cutter initial position before the stopper abuts against the outer peripheral surface, and after the stopper abuts, extends the cutter blade from the cutter initial position to a position corresponding to the cutting depth, thereby making the cut.

[0009] In addition, in order to solve the above-mentioned problem, the peeling incision method is characterized by comprising the following steps: a preparation step using the above-mentioned peeling incision device, setting the insulated electric wire in the peeling incision device, positioning the cutter blade at the cutter initial position, and positioning the stopper at a stopper initial position away from the outer peripheral surface; a stopper abutting step of abutting the stopper against the outer peripheral surface; a cutting step of extending the cutter blade to a position corresponding to the incision 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, around the wire axis to extend the incision around the wire axis, thereby making it possible to remove the peeled portion. [Effects 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 an insulated electric wire wound on a bobbin and stored is targeted. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic diagram showing a peeling incision device according to one embodiment; [Figure 2] 2 is a schematic diagram showing a coated electric wire to be cut by the peeling cutting device shown in FIG. 1.

[0023] FIG. [Figure 3] 3 is a cross-sectional view showing a cross section of the coated 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. FIG. [Figure 5] 5 is a schematic flowchart showing a series of steps in a method for making a notch for peeling at an end of an insulated electric wire using the notch device for peeling 1 shown in FIGS. 1 and 4. [Figure 6] 6 is an explanatory diagram illustrating a part of the process in the peeling incision method shown in FIG. 5, using the stopper roller and the cutter blade in the side view of FIG. 4 as a peripheral structure. DETAILED DESCRIPTION OF THE INVENTION

[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 an insulated 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 insulated 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 in high-voltage wiring harnesses for automobiles, etc. The coating material includes an inner insulating resin coating 22, a conductor braid 23, a conductor metal foil 24, and an outermost insulating resin coating 25. The stripping cutting device 1 makes a cut to a specified cut depth from the outer peripheral surface 2a as end processing for the insulated electric wire 2, thereby making it possible to remove a stripped portion according to the cut depth.

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

[0016] The stripping incision device 1 is a device capable of making such incisions in the insulated electric wire 2, and includes three cutting mechanisms 11 and a rotation mechanism 12. The three cutting mechanisms 11 are arranged around the wire axis 2b of the insulated electric wire 2 and are mechanical parts that make incisions to 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 120° intervals around the wire axis 2b. The rotation mechanism 12 is a mechanical part that rotates the three cutting mechanisms 11, which have made incisions in the insulated electric wire 2, in a cutting rotation direction D11 around the wire axis 2b, to extend the incisions around the 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 form a complete circle, allowing the peeled portion to be removed 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 peripheral surface 2a of the insulated electric wire 2 in a transverse direction D12 that intersects with the outer peripheral surface 2a. 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 peripheral surface 2a of the insulated 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 an eave portion 111a-1 that protrudes from the stopper frame 111a on the side opposite to the insulated electric wire 2 and holds the cutter moving mechanism 115, and is provided with a spring eave receiving portion 112a-1 that holds the compression spring 112b between the eave 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 eave portion 111a-1 of the stopper frame 111a and the spring eave 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 peripheral 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 relative 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 drive source 114a and a stopper connecting frame 114b that is moved in the transverse direction D12 by the drive source 114a and is connected to the stopper 111 via the urging frame 112a of the urging unit 112.

[0024] The cutter moving mechanism 115 is a mechanism that moves the cutter blade 113 relative to the stopper 111 in the transverse direction D12. First, the cutter moving mechanism 115 positions the cutter blade 113 at the cutter initial position P11 before the stopper 111 abuts against the outer peripheral surface 2a of the insulated electric wire 2. Then, after the stopper 111 abuts, the cutter blade 113 is advanced from the cutter initial position P11 to a position corresponding to the specified cutting depth to make the incision. In this embodiment, the cutter moving mechanism 115 has a servo motor 115a capable of precision driving as a drive source. The cutter moving mechanism 115 also has a cutter connecting frame 115b that is moved in the transverse direction D12 by the servo motor 115a and has the cutter blade 113 journaled at its tip on the insulated electric wire 2 side. The cutter moving mechanism 115 uses a servo motor 115a to precisely move the cutter blade 113 via a cutter connecting frame 115b, thereby causing the cutter blade 113 to enter the outer peripheral 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 peripheral surface 2a, excess movement of the stopper 111 after contact is absorbed by the compression spring 112b of the biasing part 112, which acts as an interference member. Therefore, 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, which is less precise than the servo motor 115a, but is inexpensive, can be 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 drawing, although some of the explanation will overlap with what has been explained so far.

[0026] Fig. 5 is a schematic flowchart showing the flow of a series of processes in a peeling incision method for making incisions for peeling at the end of an insulated electric wire using the peeling incision device 1 shown in Fig. 1 and Fig. 4. Fig. 6 is an explanatory diagram for explaining a part of the processes in the peeling incision method shown in Fig. 5 using the stopper roller and the cutter blade peripheral structure in the side view of Fig. 4.

[0027] The process of the stripping slitting method shown in Fig. 5 starts when the insulated electric wire 2 to be slit 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 stripping slitting device 1, and the stopper 111 and the cutter blade 113 of each of the three cutting mechanisms 11 are positioned relative to the insulated electric wire 2. 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 is executed by moving the stopper 111 with the stopper movement mechanism 114, 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. At this time, the cutter blade 113, which has been positioned at the cutter initial position P11 in the preparation step S11, is separated from the outer peripheral surface 2a even when the stopper roller 111b abuts against the outer peripheral surface 2a. Furthermore, in the stopper abutment step S12, the stopper 111 is moved toward the outer peripheral surface 2a against the biasing force of the biasing portion 112 to such an extent that the stopper 111 is slightly pushed back. 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 contact 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 moving 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 this cutting step S13, the stopper 111 is not moved and only the cutter blade 113 is moved.

[0030] After the incision step S13 is performed for each of the three cutting mechanisms 11, the incisions are finally extended by the rotation step S14. In this rotation step S14, the three cutting mechanisms 11, which have made incisions in the insulated electric wire 2, are rotated by the rotation mechanism 12 by 120° or more around the wire axis 2b. This rotation extends the three incisions around the wire axis 2b and connects them to form a complete incision around the wire axis 2b at the end of the insulated electric wire 2. By forming this complete incision, the peeled portion corresponding to the specified incision depth t11 can be removed, and this completes the series of processes in the peeling incision method. Thereafter, the removable peeled portion is removed, exposing the interior. The peeled portion may be removed manually by an operator or by 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 determined by the contact of the stopper 111, and the cutter blade 113 of the cutting mechanism 11 is advanced so as to dig into the outer peripheral surface 2a at a cutting depth t11 based on the determined outer peripheral surface 2a. Thereafter, by rotating the cutting mechanism 11 around the electric wire axis 2b, an incision is formed around the circumference that enables removal of the peeled portion. Because the actual outer peripheral surface 2a determined by the contact of the stopper 111 serves as the basis for advancing the cutter blade 113, the influence of build-up tolerances related to the thickness of each coating material can be suppressed, thereby improving the incision accuracy even when a thick electric wire is used. Furthermore, in this embodiment, when a 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 transverse direction D12 along the outer peripheral surface 2a as the cutting mechanism 11 rotates. The movement of the stopper 111 under the biasing force identifies the actual outer peripheral surface 2a without being affected by deformation or eccentricity. By using the outer peripheral surface 2a as a reference, fluctuations in the cutting depth t11 during the rotation of the cutting mechanism 11 can be suppressed, thereby improving the cutting accuracy. As described above, this embodiment can improve the cutting accuracy when a large-sized electric wire or a covered electric wire 2 that has been wound around a bobbin and stored is targeted. Furthermore, in this embodiment, when a large-sized electric wire is targeted, by appropriately specifying the cutting depth t11, a wide range of cutting operations, such as cutting only the outermost coating 25, cutting up to the metal foil 24, cutting up to the braid 23, or cutting up to the inner coating 22, 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 transverse direction D12 along the wire axis 2b. The stopper 111 abuts against the outer peripheral surface 2a at 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 smoothly follow the outer peripheral surface 2a of the insulated electric wire 2.

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

[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 embodiments merely show typical examples of the peeling incision device and the peeling incision method. The peeling incision device and the peeling incision method are not limited to these, and can be implemented in various modifications.

[0036] 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 exemplified 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 the specific mode of use is not limited 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, examples of the multiple-layer coating material are an inner insulating resin coating 22, a conductor braid 23, a conductor metal foil 24, and an outermost insulating resin coating 25. However, the insulated electric wire to be cut is not limited to this, and the core wire may be covered with a single 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 are illustrated as an example of the cutting mechanism, which are arranged at intervals of 120° around the wire axis 2b of the insulated electric wire 2. However, the cutting mechanism is not limited to this, and the specific number and arrangement of the cutting mechanism can be set arbitrarily 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 the stopper may be formed in a rod shape or a strip shape and abut against the outer peripheral surface 2a of the insulated electric wire 2 with the tip thereof, without including a stopper roller. However, as described above, the stopper 111 and the cutting mechanism 11 can smoothly follow 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 is exemplified as an example of a biasing portion, which biases the stopper 111 by applying a biasing pressure from the side opposite the outer peripheral surface 2a of the stopper 111. 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 intersecting 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 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 addition, in the present embodiment, the compression spring 112b, which is a coil spring attached in a compressed state between the overhang portion 111a-1 of the stopper frame 111a and the spring overhang portion 112a-1 of the biasing frame 112a, is exemplified as an example of how the biasing portion applies a biasing pressure. However, the method of applying the biasing pressure is not limited to using a compression spring, and 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 any spring mounting structure may be adopted depending on the type of spring.

[0041] In the above-described embodiment, the cutter moving mechanism 115, which moves the cutter blade 113 using a servo motor 115a, is exemplified as an example of a cutter moving mechanism. The stopper moving mechanism 114, which uses an inexpensive, general-purpose motor or cylinder mechanism as the drive source 114a, is exemplified as an example of a stopper moving mechanism. However, the cutter moving mechanism and the stopper moving mechanism are not limited to this. Both mechanisms may use a servo motor as the drive source, or both mechanisms may use a motor or cylinder mechanism as the drive source. However, as described above, using a servo motor 115a as the drive source for the cutter moving mechanism 115 can further improve cutting accuracy. Furthermore, using an inexpensive, general-purpose motor or cylinder mechanism as the drive source for the stopper moving mechanism 114 can reduce the cost of the entire device. [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 Drive source 114b Stopper connecting frame 115 Cutter movement mechanism 115a servo motor 115b Cutter connecting frame D11 Cutting rotation direction D12 Crossing direction L11 Feeding 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 the axis of the insulated electric wire, the cutting mechanisms making a cut from the outer circumferential surface of the insulated electric wire to a specified cutting depth; 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 a stopper that can be brought into contact with and separated 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 movable relative to the stopper in the intersecting direction; a stopper movement mechanism that moves the stopper together with the cutter blade in the intersecting direction, and that, during cutting, moves the stopper together with the cutter blade positioned at a predetermined cutter initial position, causing the stopper to abut against the outer circumferential surface; 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 abuts against the outer circumferential surface, and advances the cutter blade from the cutter initial position to a position corresponding to the cutting depth after the stopper abuts against the outer circumferential surface, thereby making the cut; A peeling incision device comprising:

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

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

4. 2. The peeling incision device 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 peeling incision device according to any one of claims 1 to 4, setting the insulated electric wire in the peeling incision device, positioning the cutter blade at the cutter initial position, and positioning the stopper at 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 contacted, extending the cutter blade to a position corresponding to the cutting depth to make the cut; a rotating step of rotating the cutting mechanism, having made the incision 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; A peeling incision method comprising:

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