Wire end processing equipment

Abstract

To provide a terminal processing device for an electric wire capable of improving the processing quality by eliminating an influence of an uncut part of a metal foil.SOLUTION: A movable plate 20 is provided to push in an uncut part 2a of a metal foil at the base ends of a pair of exposed wire cores 3. The movable plate 20 is rotatable around an axis of an electric wire W, and when a pair of opening / closing plates 21, 21 are closed, two semicircular recessed parts 22 formed on the opposed edges are brought into close contact with the outer peripheries of the pair of wire cores 3. The movable plate 20 is slid by a slide mechanism in a closed state (as indicated by an arrow S1) to push the uncut part 2a toward the proximal end of the electric wire W.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to an end processing device for electric wires used for processing the ends of cables such as high-speed communication cables. [Background technology]

[0002] High-speed communication cables include electromagnetically shielded electric wires, which consist of a pair of wire cores, each of which is covered with an insulator, surrounded by a metal foil (shielding material) such as aluminum or copper, and then covered with a sheath. Some cables also have an additional braid (additional shielding material) between the metal foil and the sheath. Other types include those with two wire cores arranged parallel to one another (parallel wire core type) and those with two wire cores twisted together (twisted wire core type).

[0003] When terminating an electric wire that uses this type of metal foil as a shielding material, the sheath at the tip of the wire is removed, the metal foil is then cut away, and the core is exposed. A terminal is then crimped onto the conductor of the core. If a braid is present, the sheath is removed, the exposed braid is folded back onto the sheath, and the sheath end is then covered. An earth terminal is then crimped onto the braided portion. Some wires have a metal sleeve fitted around the sheath at the location where the braid would be placed.

[0004] However, it is desirable to automate part or all of this wire end treatment. As an example of an automated method for cutting off metal foil, for example, the technology described in Patent Document 1 is known. According to the technology described in Patent Document 1, the metal foil is cut off by applying a cutting blade to the metal foil exposed by removing the sheath. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5247404 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when the metal foil is automatically cut, there is a possibility that some of the metal foil will remain uncut at the base end of the exposed wire core. If terminal processing such as terminal crimping is performed with this uncut portion, it may cause a short circuit or result in a defective product.

[0007] One possible solution is to use a camera to check the entire circumference of the wire to see if the metal foil has been completely removed without leaving any uncut portions. However, this method requires a camera that can at least identify whether metal foil remains on the wire, which is costly, and requires time for image processing to determine whether or not there is metal foil in the uncut portions.

[0008] The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide an electric wire terminal processing device that can eliminate the influence of uncut portions of metal foil and improve processing quality, thereby contributing to the automation of terminal processing. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the electric wire end processing device according to the present invention has the following features.

[0010] An electric wire end processing device for processing an uncut portion of the metal foil at the base end of the exposed wire cores in an end processing section of the electric wire, in which the periphery of a pair of wire cores is surrounded by a metal foil and the outside of the wire cores is covered by a sheath, the sheath at the end of the electric wire is removed, and then the metal foil is removed, thereby exposing the pair of wire cores, a pair of opening / closing plates each having two semicircular recesses at opposing edges corresponding to the outer peripheral contours of each half circumference of the pair of exposed wire cores arranged adjacent to each other in a direction perpendicular to the axial direction of the electric wire, the opening / closing plates being capable of opening and closing in an opening direction in which they move away from each other and in a closing direction in which they move toward each other, and a movable plate being rotatable around the axial line of the electric wire; an opening / closing mechanism that drives the pair of opening / closing plates of the movable plate to open and close; a rotation mechanism that rotates the movable plate around the axis of the electric wire and positions the movable plate in the rotation direction; a slide mechanism that pushes the remaining portion of the metal foil toward the base end side of the electric wire by relatively sliding the movable plate toward the base end side of the electric wire while the pair of opening and closing plates are closed. Wire terminal processing equipment. [Effects of the Invention]

[0011] According to the present invention, even if an uncut portion of the metal foil occurs on the base end side of the exposed wire core, the uncut portion can be pushed toward the base end side of the wire by closing the movable plate and sliding it. Therefore, it is possible to eliminate the adverse effects of the uncut portion of the metal foil, improve the quality of terminal processing, and as a result, contribute to the automation of terminal processing.

[0012] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of an electric wire for explaining processing by an electric wire end processing device according to one embodiment of the present invention. [Figure 2] FIG. 2 is a schematic view of an electric wire end processing device according to one embodiment of the present invention, as viewed from above. [Figure 3] FIG. 3 is a schematic side view of the wire end processing device according to one embodiment of the present invention. [Figure 4] FIG. 4 is a schematic front view of an electric wire end processing device according to one embodiment of the present invention. [Figure 5] FIG. 5 is a front view showing a state before the movable plate of the wire end processing device according to one embodiment of the present invention is closed. [Figure 6]FIG. 6 is a front view showing a state after the movable plate of the wire end processing device according to one embodiment of the present invention has been closed. [Figure 7] FIG. 7 is a side view showing a state after the movable plate of the wire end processing device according to one embodiment of the present invention has been closed. [Figure 8] FIG. 8 is a side view showing a state in which the movable plate of the wire end processing device according to one embodiment of the present invention is slid. [Figure 9] FIG. 9 is a side view of an electric wire end processing device according to another embodiment of the present invention. [Figure 10] FIG. 10 is a front view of an electric wire end processing device according to still another embodiment of the present invention. [Figure 11] 11 is a front view showing a state in which the movable plate of the wire end processing device shown in FIG. 10 is in the middle of being closed. [Figure 12] FIG. 12 is a front view showing a state where the movable plate of the wire end processing device shown in FIG. 10 is rotated by a predetermined angle. [Figure 13] FIG. 13 is a front view showing the shape characteristics of the movable plate of the wire end processing device shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0015] FIG. 1 is a perspective view of an electric wire for explaining processing by an electric wire end processing device according to one embodiment of the present invention.

[0016] The electric wire terminal processing device of this embodiment is intended to process, as an example, electric wires W as shown in the upper and lower diagrams on the left side of FIG. 1 . These electric wires W have a pair (two) wire cores 3 surrounded by a metal foil 2 made of aluminum, copper, or the like, and the outside of that surrounded by a sheath 1 made of an insulating material. Each wire core 3 has a conductor 4 surrounded by an insulator 5, and the metal foil 2 covers the pair of wire cores 3, 3. The upper left diagram shows an electric wire A of a parallel wire core type in which the two wire cores 3 extend parallel to each other, and the lower left diagram shows an electric wire B of a twisted wire core type in which the two wire cores 3 are twisted. The electric wire terminal processing device of this embodiment is intended to process both parallel wire core type and twisted wire core type electric wires W. The electric wire terminal processing device of this embodiment is also intended to process electric wires having a structure in which a braid is further arranged between the metal foil 2 and the sheath 1, as will be described later.

[0017] The end processing device of this embodiment processes the end of such an electric wire W, in an end processing part Pw of the electric wire where the sheath 1 and the metal foil 2 at the end of the electric wire W are removed to expose a pair of wire cores 3, and processes the remaining portion 2a of the metal foil 2 at the base end of the exposed wire cores 3. Note that, in many cases, before processing by this end processing device, a cylindrical metallic sleeve 10 is crimped onto the outer periphery of the end of the sheath 1.

[0018] The terminal processing device of this embodiment performs a process of pushing the remaining portion 2a of the metal foil 2 at the terminal processing portion Pw of the electric wire into the base end side of the electric wire W (the side where the sleeve 10 is located) as shown by C in the right diagram of Figure 1.

[0019] Fig. 2 is a schematic diagram of the electric wire end processing device of this embodiment as seen from above at a certain point in time, Fig. 3 is a schematic diagram of the electric wire end processing device as seen from the side at the same point in time as Fig. 2, and Fig. 4 is a schematic diagram of the electric wire end processing device as seen from the front. Also, Fig. 5 is a front view showing the state before the movable plate of the electric wire end processing device of this embodiment is closed, Fig. 6 is a front view showing the state after the movable plate is closed, Fig. 7 is a side view showing the state after the movable plate is closed, and Fig. 8 is a side view showing the state when the movable plate is slid.

[0020] As shown in FIGS. 2 to 4, the wire end processing device of this embodiment includes a movable plate 20 in the shape of half glasses, a detection unit 30, and a rotation mechanism 40.

[0021] 4 to 6, the half-glasses-shaped movable plate 20 includes a pair of opening and closing plates 21, 21 having two semicircular recesses 22 at opposing edges corresponding to the outer peripheral contours of each half circumference of a pair of exposed wire cores 3, 3 arranged adjacent to each other in a direction perpendicular to the axial direction of the electric wire W. A protrusion 23 is provided at the boundary between the two adjacent semicircular recesses 22, 22 to be inserted into the recess between the adjacent pair of wire cores 3, 3.

[0022] The pair of opening / closing plates 21, 21 can be opened and closed in an open direction in which they move away from each other and in a closed direction in which they move towards each other (openable and closable in the direction of arrow F in Figures 3 to 6). The opening and closing direction is a direction perpendicular to the axial direction of the electric wire. This terminal processing device is equipped with an opening / closing mechanism (not shown) that drives the pair of opening / closing plates 21, 21 of the movable plate 20 to open and close. As shown in Figure 6, the movable plate 20 is configured to bring two semicircular recesses 22, 22 into close contact with the outer peripheries of a pair of adjacent exposed wire cores 3, 3 when the pair of opening / closing plates 21, 21 are closed. The movable plate 20 is made of metal or resin (for example, urethane).

[0023] 2 to 4, the movable plate 20 is supported rotatably about the axis of the electric wire W, and the rotation mechanism 40 functions to drive the movable plate 20 to rotate about the axis of the electric wire W and to position it in the rotation direction. In addition, this terminal processing device is equipped with a slide mechanism that, with the pair of opening / closing plates 21, 21 closed, slides the movable plate 20 relatively in the direction of the base end of the electric wire W as shown by arrow S in FIGS. 7 and 8, thereby pushing the uncut portion 2a of the metal foil 2 toward the base end side of the electric wire W.

[0024] The detection unit 30 acquires a side projection image of the pair of exposed wire cores 3, 3 while rotating around the pair of exposed wire cores 3, 3, and detects the arrangement direction of the pair of wire cores based on the dimensions of the acquired side projection image. Specifically, when a laser sensor unit is used as the detection unit 30, it projects laser light toward the pair of exposed wire cores 3, 3, and acquires a projection image (side projection image) of the pair of exposed wire cores 3, 3 viewed from the side based on the received light data. Then, the rotation position at which the dimension of the acquired projection image, i.e., the dimension in the direction perpendicular to the axial direction of the electric wire (apparent width of the two wire cores 3, 3), is smallest is detected as the arrangement direction of the pair of exposed wire cores 3, 3. Instead of the laser sensor unit, a camera that captures an image of the pair of exposed wire cores 3, 3 from the side may be used.

[0025] The rotation mechanism 40 functions to adjust the rotational position of the movable plate 20 so that the opening and closing direction of the pair of opening and closing plates 21, 21 of the movable plate 20 is perpendicular to the arrangement direction of the pair of exposed wire cores 3, 3 detected by the detection unit 30. Then, the opening and closing mechanism (not shown) closes the pair of opening and closing plates 21, 21 of the movable plate 20 from the open position to the closed position in a state in which the position of the rotational direction of the movable plate 20 is adjusted so that the opening and closing direction of the movable plate 20 is perpendicular to the arrangement direction of the pair of exposed wire cores 3, 3.

[0026] In this embodiment, the detection unit 30 and the movable plate 20 are fixed to each other at positions offset by 90° in the rotational direction and are provided so as to rotate together. Therefore, when the detection unit 30 stops rotating at a position where it detects the arrangement direction of the pair of wire cores 3, 3, it is automatically set to a rotational position where the opening and closing direction of the pair of opening and closing plates 21, 21 of the movable plate 20 is perpendicular to the arrangement direction of the wire cores 3, 3. It is desirable to arrange the detection unit 30 and the movable plate 20 at the same position or as close as possible to each other in the axial direction.

[0027] In this embodiment, the detection unit 30 and the rotation mechanism 40 function as a position adjustment means for adjusting the movable plate 20 to an appropriate rotation position. The terminal processing device is equipped with a control unit (not shown) for cooperatively driving and controlling the detection unit 30, the opening / closing mechanism, the rotation mechanism 40, the slide mechanism, etc.

[0028] Next, the operation will be described. In preparation for the processing work, the sheath 1 at the tip end is removed, and the end processing portion of the electric wire W (the portion indicated by Pw in Figure 1) from which the metal foil 2 has been cut off is set in this end processing device. At this time, the electric wire W is held and fixed so that it does not rotate. In this state, the detection unit 30 rotates the required amount to automatically detect the arrangement direction of the pair of wire cores 3, 3.

[0029] When a laser sensor unit is used as the detection unit 30, the alignment direction of the pair of wire cores 3 is detected as described above. That is, a laser beam is projected toward the pair of exposed wire cores 3, and a projection image (side projection image) of the pair of exposed wire cores 3, 3 viewed from the side is collected based on the received light data. Then, the rotation position at which the width dimension (apparent width of the two wire cores 3, 3) of the collected projection image in the direction perpendicular to the axial direction of the electric wire is minimum is detected as the alignment direction of the pair of exposed wire cores 3, 3.

[0030] When the rotation of the detection unit 30 is stopped at a position where the arrangement direction of the pair of wire cores 3 is automatically detected, the pair of opening / closing plates 21 of the movable plate 20 is automatically set to a rotation position where the opening / closing direction of the pair of opening / closing plates 21 is perpendicular to the arrangement direction of the wire cores 3, as shown in FIG. 5. Then, the opening / closing mechanism closes the pair of opening / closing plates 21 of the movable plate 20 from the open position to the closed position (operation indicated by arrow F in FIGS. 5 and 6). FIG. 5 shows the pair of opening / closing plates 21 in the open position, and FIG. 6 shows the pair of opening / closing plates 21 in the closed position. Then, as shown in FIG. 6, the semicircular recesses 22 of the pair of opening / closing plates 21 come into close contact with the outer peripheries of the pair of wire cores 3. In other words, the semicircular recesses 22 can be smoothly fitted onto the wire cores 3. Therefore, excessive force is not applied to the wire cores 3, and the wire cores 3 are not scratched or indented.

[0031] Fig. 7 is a side view of the electric wire end processing device in this state. In this state, the movable plate 20 is slid toward the base end of the electric wire W by the slide mechanism, as shown in Fig. 8. Then, the uncut portion 2a of the metal foil is pushed toward the base end of the electric wire W by the movable plate 20.

[0032] In this way, even if the uncut portion 2a of the metal foil occurs on the base end side of the exposed wire cores 3, 3, the uncut portion 2a can be pushed into the base end side of the electric wire W by closing the movable plate 20 and sliding it. Therefore, it is possible to eliminate the adverse effects of the uncut portion 2a of the metal foil, improve the quality of terminal processing, and as a result, contribute to the automation of terminal processing.

[0033] In particular, in this embodiment, when the movable plate 20 is closed, the semicircular recesses 22, 22 of the pair of opening and closing plates 21, 21 can be brought into close contact with the outer periphery of the pair of exposed wire cores 3, 3, so that with a single sliding operation of the movable plate 20, the remaining portion 2a of the metal foil can be neatly pushed toward the base end of the electric wire W.

[0034] Furthermore, according to this embodiment, the detection unit 30 automatically detects the arrangement direction of the pair of wire cores 3, 3 and appropriately adjusts the position of the movable plate 20, so that the remaining portion 2a of the metal foil can be easily and efficiently pushed toward the base end of the wire W regardless of the orientation of the wire W when the wire W is inserted into the device.

[0035] Furthermore, in this embodiment, the detection unit 30 and the movable plate 20 are configured to rotate together, which simplifies the structure.

[0036] Furthermore, in this embodiment, the protrusion 23 is left at the boundary between the two semicircular recesses 22, 22 formed in the opening / closing plate 21, so that the metal foil remaining in the recessed portion between the two wire cores 3, 3 can also be pushed toward the base end of the electric wire by the protrusion 23. At this time, the protrusion 23 can reach the metal foil remaining in the recessed portion between the two wire cores 3, 3 without applying any extra force to the opening / closing plates 21, 21, so there is no need to force the opening / closing plates 21, 21 against the wire cores 3, 3, and the wire cores 3, 3 are not scratched or indented.

[0037] If the electric wire to be processed is a twisted core type, it is preferable to close the movable plate 20 at a position slightly away from the sleeve 10, rotate the movable plate 20 in the direction to untwist the cores 3, 3, and then slide it in the axial direction.

[0038] Furthermore, as shown in FIG. 9, when a pre-folded braid 6 is present at the end processing section, the folded portion 6a of the braid is pushed toward the sleeve 10 by sliding the movable plate 20 or a similarly shaped movable plate. This allows the folded portion 6a to be bent even smaller near the sleeve 10, making it possible to form the braid 6 to the specified dimensions. This allows all unnecessary material at the base of the sleeve 10, such as the metal foil 2 and the braid 6, to be compactly stored, improving the quality of the end processing section. It is recommended that the braid 6 be folded in advance by sliding the forming block or forming sleeve 16 (as indicated by arrow S2) to overlap the folded portion 6b around the outer periphery of the sleeve 10.

[0039] In this way, by pressing the metal foil with the movable plate 20, the folded portion 6a of the braid 6 can be pressed strongly toward the base end side of the electric wire W, so that the dimensional quality of the folded back of the braid 6 can be improved.

[0040] Figure 10 is a front view of another embodiment of an electric wire terminal processing device of the present invention, Figure 11 is a front view showing a state in which the movable plate of the electric wire terminal processing device shown in Figure 10 is in the middle of closing, Figure 12 is a front view showing a state when the movable plate of the electric wire terminal processing device shown in Figure 10 has been rotated by a predetermined angle, and Figure 13 is a front view shown to explain the geometric features of the movable plate of the electric wire terminal processing device shown in Figure 10.

[0041] 10 to 12, the terminal processing device of this embodiment includes a movable plate 20 but does not include a detection unit. The rotation mechanism 40 includes a rotation frame 41 that supports the movable plate 20 via an opening / closing mechanism (not shown), and a spring 50 is interposed between the rotation frame 41 and the movable plate 20 to allow the movable plate 20 to escape in the rotation direction.

[0042] In this device, the spring 50 allows the movable plate 20 to flexibly press against the wire cores 3, 3, so that the uncut portion 2a of the metal foil 2 can be pushed toward the base end of the wire W without scratching or leaving indentations on the wire cores 3, 3. In other words, when the pair of opening / closing plates 21, 21 of the movable plate 20 is operated from the open position shown in FIG. 10 to the closed position shown in FIG. 11, the movable plate 20 comes into contact with the wire cores 3, 3 with some play. Therefore, by repeatedly sliding the movable plate 20 in a somewhat closed state while changing the rotational position of the movable plate 20 as shown in FIG. 12, the uncut portion 2a of the metal foil 20 can be pushed toward the base end of the wire W. In this case, when the pair of opening / closing plates 21, 21 of the movable plate 20 come into contact with the wire cores 3, 3, the spring 50 causes them to move in the opposite direction, so that the wire cores 3, 3 are not damaged. In this embodiment, as shown in Figure 13, the protrusion 23 at the boundary between the two semicircular recesses 22 of the pair of opening and closing plates 21, 21 of the movable plate 20 is not required to fit into the recess between the two wire cores 3, 3, so it is not sharply angled but is chamfered into a smooth arc shape.

[0043] In the above-described embodiment, the electric wire is fixed so as not to rotate, and the movable plate 20 is rotated, but it is also possible to rotate the electric wire W instead of rotating the movable plate 20. Also, a control unit (not shown) may be configured to allow input of the angle of rotation per rotation by the rotation mechanism 40, so that the operator can set the angle of rotation per rotation depending on the type of electric wire.

[0044] Here, the features of the wire end processing device according to the embodiment of the present invention described above will be briefly summarized and listed below in [1] to [5].

[0045] [1] An electric wire end processing device for processing an uncut portion (2a) of the metal foil at the base end of the exposed wire cores (3, 3) after removing the sheath (1) and the metal foil (2) at the tip end of an electric wire (W) having a pair of wire cores (3, 3) covered with a metal foil (2) and a sheath (1), comprising: a pair of opening / closing plates (21, 21) having two semicircular recesses (22, 22) at opposing edges corresponding to the outer peripheral contours of each half of the pair of exposed wire cores (3, 3), and which are capable of opening and closing in an opening direction in which they move away from each other and in a closing direction in which they move toward each other, and a movable plate (20) which is rotatable around the axis of the electric wire; an opening / closing mechanism that drives the pair of opening / closing plates (21, 21) to open and close; a rotation mechanism (40) that rotates the movable plate (20) around the axis of the electric wire (W) and positions it in the rotation direction; a slide mechanism that, with the pair of opening / closing plates (21, 21) in a closed state, slides the movable plate (20) relatively in the direction of the base end of the electric wire (W), thereby pushing the remaining cut-off portion (2a) of the metal foil toward the base end side of the electric wire (W). Wire terminal processing equipment.

[0046] According to the configuration [1] above, even if an uncut portion (2a) of the metal foil occurs on the base end side of the exposed wire cores (3, 3), the uncut portion (2a) can be pushed into the base end side of the wire (W) by closing the movable plate (20) and sliding it. Therefore, it is possible to eliminate the adverse effects of the uncut portion (2a) of the metal foil, improve the quality of terminal processing, and as a result, contribute to the automation of terminal processing.

[0047] [2] The movable plate (20) is configured to bring the two semicircular recesses (22, 22) into close contact with the outer peripheries of the pair of adjacent exposed wire cores (3, 3) when the pair of opening / closing plates (21, 21) are closed, the movable plate (20) is supported via a position adjusting means for adjusting the relative position of the electric wire (W) and the movable plate (20) in the circumferential direction so that the opening and closing direction of the pair of opening and closing plates (21, 21) is perpendicular to the arrangement direction of the pair of exposed wire cores (3, 3); The opening / closing mechanism closes the pair of opening / closing plates (21, 21) of the movable plate (20) from an open position to a closed position in a state where the relative positions of the electric wire (W) and the movable plate (20) in the circumferential direction are adjusted so that the opening / closing direction of the movable plate (20) is perpendicular to the arrangement direction of the pair of wire cores (3, 3). The wire terminal processing device described in [1] above.

[0048] According to the configuration [2] above, when the movable plate (20) is closed, the semicircular recesses (22, 22) of the opening / closing plates (21, 21) can be brought into close contact with the outer periphery of the pair of exposed wire cores (3, 3), so that the remaining portion (2a) of the metal foil can be neatly pushed into the base end side of the electric wire (W) by a single sliding operation of the movable plate (20).

[0049] [3] The position adjustment means includes a detection unit (30) that acquires a side projection image of the pair of exposed wire cores while rotating around the pair of exposed wire cores and detects the arrangement direction of the pair of wire cores based on the dimensions of the acquired side projection image, The rotation mechanism (40) adjusts the rotation position of the movable plate (20) so that the opening and closing direction of the pair of opening and closing plates (21, 21) of the movable plate (20) is perpendicular to the arrangement direction of the pair of exposed wire cores (3, 3) detected by the detection unit (30). The wire terminal processing device described in [2] above.

[0050] According to the configuration [3] above, the detection unit (30) automatically detects the arrangement direction of the pair of wire cores (3, 3), so that the remaining portion (2a) of the metal foil can be easily and efficiently pushed into the base end side of the wire (W) regardless of the orientation of the wire (W) when the wire (W) is inserted into the device.

[0051] [4] The detection unit (30) and the movable plate (20) are fixed to each other at positions offset by an angle of 90° in the rotation direction and are arranged to rotate together, the detection unit (30) detects the rotation position at which the dimension of the side projection image of the pair of exposed wire cores (3, 3) in a direction perpendicular to the axial direction of the electric wire (W) is smallest as the arrangement direction of the pair of exposed wire cores (3, 3); The rotation mechanism (40) adjusts the rotation position of the movable plate (20) so that the opening and closing direction of the pair of opening and closing plates (21, 21) of the movable plate (20) is perpendicular to the arrangement direction of the pair of exposed wire cores (3, 3) detected by the detection unit (30). The wire terminal processing device described in [3] above.

[0052] According to the configuration [4] above, the detection unit (30) and the movable plate (20) are configured to rotate together, which simplifies the structure.

[0053] [5] The electric wire (W) is configured to have a braid (6) between the metal foil (2) and the sheath (1), The movable plate (20) can slide in the direction of the base end of the electric wire (W), thereby pushing the remaining portion (2a) of the metal foil and the folded portion (6a) of the braid (6) together toward the base end of the electric wire (W). The wire terminal processing device according to any one of [1] to [4] above.

[0054] According to the configuration [5] above, the bending portion (6a) of the braid can be strongly pressed toward the base end of the electric wire (W) by pushing the remaining portion (2a) of the metal foil with the movable plate (20), thereby improving the dimensional quality of the folded braid.

[0055] The present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, etc. Furthermore, the material, shape, size, number, location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention. [Explanation of symbols]

[0056] 1 sheath 2. Metal foil 2a Remaining metal foil 3 wire core 6 braid 20 Movable plate 21 Opening and closing plate 22 Semicircular recess 30 Detection Unit 40 Rotation mechanism 41 Rotating Frame 50 springs W electric wire Pw Terminal processing part

Claims

1. An electric wire end processing device for processing an uncut portion of the metal foil at a base end of an exposed wire core after removing the sheath and metal foil from a tip end of an electric wire having a pair of wire cores covered with a metal foil and a sheath, comprising: a pair of opening and closing plates having two semicircular recesses at opposing edges corresponding to the outer peripheral contours of each half circumference of the pair of exposed wire cores, the opening plates being capable of opening and closing in an opening direction in which they move away from each other and a closing direction in which they move toward each other, and a movable plate being rotatable around the axis of the electric wire; an opening / closing mechanism that drives the pair of opening / closing plates to open and close; a rotation mechanism that rotates the movable plate around the axis of the electric wire and positions the movable plate in the rotation direction; a slide mechanism that pushes the remaining portion of the metal foil toward the base end of the electric wire by relatively sliding the movable plate toward the base end of the electric wire while the pair of opening and closing plates are closed. Wire terminal processing equipment.

2. the movable plate is configured to bring the two semicircular recesses into close contact with outer peripheries of the pair of exposed wire cores arranged adjacent to each other when the pair of opening and closing plates are closed, the movable plate is supported via a position adjusting means that adjusts the relative position of the electric wire and the movable plate in the circumferential direction so that the opening and closing direction of the pair of opening and closing plates is perpendicular to the arrangement direction of the pair of exposed wire cores, the opening / closing mechanism closes the pair of opening / closing plates of the movable plate from an open position to a closed position in a state in which the relative positions of the electric wire and the movable plate in the circumferential direction are adjusted so that the opening / closing direction of the movable plate is perpendicular to the arrangement direction of the pair of wire cores. The wire end processing device according to claim 1.

3. The position adjustment means a detection unit that acquires a side projection image of the pair of exposed wire cores while rotating around the pair of exposed wire cores and detects an arrangement direction of the pair of wire cores based on a size of the acquired side projection image, the rotation mechanism adjusts the rotation position of the movable plate so that the opening and closing direction of the pair of opening and closing plates of the movable plate is perpendicular to the arrangement direction of the pair of exposed wire cores detected by the detection unit. The wire end processing device according to claim 2.

4. the detection unit and the movable plate are fixed to each other at positions offset by an angle of 90° in a rotational direction and are provided so as to rotate together; the detection unit detects a rotation position at which a dimension of a side projection image of the pair of exposed wire cores in a direction perpendicular to the axial direction of the electric wire is smallest as an arrangement direction of the pair of exposed wire cores; the rotation mechanism adjusts the rotation position of the movable plate so that the opening and closing direction of the pair of opening and closing plates of the movable plate is perpendicular to the arrangement direction of the pair of exposed wire cores detected by the detection unit. The wire end processing device according to claim 3.

5. The electric wire has a configuration in which a braid is provided between the metal foil and the sheath, The movable plate is configured to slide toward the base end of the electric wire, thereby pushing the uncut portion of the metal foil and the folded portion of the braid together toward the base end of the electric wire. The wire end processing device according to claim 1.

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