JP2020057556A - Wire clamp device and wire processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric wire clamp device capable of satisfactorily centering an electric wire when gripping the electric wire and smoothly guiding the movement of the electric wire without the need for replacement work of parts due to a change in the specifications of the electric wire. offer. SOLUTION: Four clamp members 40A to 40D arranged in the circumferential direction around a center line CL and clamp members 40A to 40D are held so that an electric wire contact surface 41a can approach and separate from the center line CL. A holding member 50 is provided, and an air cylinder 60 that drives the clamp members 40A to 40D so that the electric wire contact surface 41a approaches and separates from the center line CL is provided. [Selection diagram] FIG. 8

Description

  The present invention relates to an electric wire clamping device for gripping an electric wire and an electric wire processing device provided with the same.

  Conventionally, in an electric wire processing device that performs processing such as cutting, stripping of a covering material, and crimping of a terminal on an electric wire, a function of guiding movement of the electric wire along a longitudinal direction, and a function of guiding the electric wire during each process. An electric wire clamp device having a gripping function is used.

  For example, Patent Literature 1 discloses an electric wire clamping device including a clamp portion for holding an electric wire and a nozzle. The nozzle extends in the longitudinal direction of the electric wire and guides the movement of the electric wire along the longitudinal direction. The clamp is gripped by sandwiching the electric wire from both sides. By the way, when gripping the electric wire, the center position of the electric wire may be shifted in a direction perpendicular to the direction in which the electric wire is sandwiched. For example, when gripping the electric wire from above and below, the center position of the electric wire may be shifted left and right. However, when the inner diameter of the nozzle matches the outer diameter of the electric wire, such misalignment is suppressed by the nozzle. The nozzle has a function of positioning the electric wire on a predetermined center line (centering).

  As shown in FIGS. 15 and 16, there is known an electric wire clamp device in which a pair of clamp claws 101 and 102 sandwiching the electric wire 110 from both sides are arranged in the longitudinal direction of the electric wire 110. In this electric wire clamping device, a passage (a passage extending left and right in FIG. 15) that guides the electric wire 110 in the longitudinal direction is formed by a plurality of pairs of clamp claws 101 and 102. Here, the direction in which the electric wire 110 is sandwiched is slightly different for each of the clamp claws 101 and 102. Therefore, according to this electric wire clamping device, when the electric wire 110 is gripped, the center position of the electric wire 110 is suppressed from being shifted in one specific direction.

JP 2011-210460 A

  By the way, the specifications of the electric wires to be processed by the electric wire processing device are various, and the electric wire processing device must process a plurality of types of electric wires having different outer diameters. Accordingly, the electric wire clamping device must be able to guide and hold a plurality of types of electric wires having different outer diameters.

  In the above-described conventional electric wire clamping device including the clamp portion and the nozzle, if the outer diameter of the electric wire is not equal to the inner diameter of the nozzle, the center position of the electric wire is shifted from the center position of the nozzle. If the inner diameter of the nozzle does not match the outer diameter of the wire, the nozzle cannot perform positioning (centering) of the wire. Therefore, in the above-described electric wire clamping device, it is necessary to replace the nozzle each time the outer diameter of the electric wire changes. However, it takes time and effort to replace the nozzle.

  According to the above-described conventional wire clamp device including a plurality of pairs of clamp claws 101 and 102 arranged in the longitudinal direction of the electric wire 110, the distance between the clamp claws 101 and 102 can be adjusted according to the outer diameter of the electric wire 110. . Even if the outer diameter of the electric wire 110 changes, the centering of the electric wire 110 can be performed by adjusting the distance between the clamp claws 101 and 102. Therefore, there is no need to replace parts such as nozzles. However, in this electric wire clamping device, as shown in FIG. 15, a step 103 is formed between the clamp claws 101 and 102 adjacent in the longitudinal direction of the electric wire 110. Therefore, when sending out the electric wire 110 in the longitudinal direction, there is a problem that the movement of the electric wire 110 cannot be smoothly guided. In particular, when exchanging the electric wire 110, it is necessary to pass the front end of the electric wire 110 into the inside of the electric wire clamp device, but the end portion is caught by the step 103 and is clogged inside the electric wire clamp device. There is.

  The present invention has been made in view of such a point, the purpose of the present invention is that there is no need to replace parts with a change in the specification of the wire, it is possible to satisfactorily center the wire when gripping the wire, An object of the present invention is to provide an electric wire clamping device capable of smoothly guiding the movement of electric wires and an electric wire processing device provided with the same.

  The wire clamp device according to the present invention is a wire clamp device that grasps the wire and guides the wire along a predetermined center line when the grip of the wire is released, and Three or more clamp members extending in a parallel direction and having a wire contact surface arranged around the center line, and arranged in a circumferential direction about the center line; A holding member that holds the clamp member so that it can approach and separate from the center line; and an actuator that drives the clamp member so that the electric wire contact surface approaches and separates from the center line. .

  According to the above-described electric wire clamp device, a passage that guides the electric wire along the center line is defined by the electric wire contact surfaces of the three or more clamp members arranged in the circumferential direction around the predetermined center line. Here, the electric wire contact surface, which is the wall surface of the passage, extends in a direction parallel to the center line. Therefore, the movement of the electric wire can be smoothly guided. Further, according to the above-described electric wire clamp device, the electric wire can be gripped by driving the clamp member such that the electric wire contact surface approaches the center line. Here, the electric wire contact surface can approach and separate from the center line, and the distance between the electric wire contact surface and the center line can be adjusted according to the outer diameter of the electric wire. Therefore, a plurality of types of electric wires having different outer diameters can be gripped without replacing parts. Therefore, there is no need to replace parts with the change in the specification of the electric wire. Also, according to the above-described wire clamp device, since three or more clamp members are provided, unlike the case where there are two clamp members, the center position of the wire is prevented from shifting in a specific direction when gripping the wire. Is done. Further, since the electric wire is gripped such that its center is located on the center line, the electric wire can be favorably centered.

  According to a preferred aspect of the present invention, the wire contact surface extends straight in a direction parallel to the center line.

  According to the above aspect, the movement of the electric wire along the center line can be more smoothly guided.

  According to a preferred aspect of the present invention, a length of the wire contact surface in a direction parallel to the center line is at least 10 times a distance between the wire contact surface and the center line when guiding the wire. is there.

  According to the above aspect, since the length of the wire contact surface in the direction parallel to the center line is long, it is possible to more reliably prevent the wire from deviating from the center line and bending when gripping the wire. . Therefore, the electric wire can be more favorably centered. Further, the electric wire can be guided more favorably along the center line. Further, since the area of the wire contact surface is relatively large, when the pressure at which the wire contact surface presses the wire is constant, the gripping force can be increased, and the wire can be gripped sufficiently. Conversely, when the gripping force is constant, the pressure with which the wire contact surface pushes the wire is reduced, so that local deformation of the wire can be prevented. Therefore, the quality of the electric wire can be kept good.

  According to a preferred aspect of the present invention, the clamp members are in contact with each other without any gap in the circumferential direction.

  If a gap is formed between the clamp members arranged in the circumferential direction, when the wire is thin, the wire may be caught in the gap. However, according to the above aspect, the clamp members are in contact with each other without any gap in the circumferential direction, and therefore, even if the wire is a thin wire, there is no risk of being pinched by the gap between the clamp members. Therefore, the electric wire can be gripped and guided satisfactorily.

  According to a preferred aspect of the present invention, there is provided a connection mechanism for connecting the clamp members such that the electric wire contact surface of the clamp member approaches and separates from the center line at the same time.

  According to the above aspect, the wire contact surfaces of the clamp members arranged in the circumferential direction approach and separate from the center line at the same time. Therefore, it is possible to satisfactorily grasp and release the grasp of the electric wire.

  According to a preferred aspect of the present invention, the tip side portion of the clamp member has a smaller dimension in a direction perpendicular to the center line than the root side portion.

  According to the above aspect, since the distal end portion of the clamp member is compact, it is easy to secure a space for installing another member near the distal end portion of the wire clamp device. It is possible to reduce restrictions on the installation space of members installed near the distal end portion of the electric wire clamping device, for example, a cutter blade, a strip blade, and a terminal crimping machine of the electric wire processing device. Therefore, it is possible to reduce the size of an electric wire processing device or the like on which the electric wire clamp device is mounted.

  According to a preferred aspect of the present invention, a support member that supports the clamp member, and a swivel actuator that swivels the support member around a swivel center line located closer to a root side portion than to a tip side portion of the clamp member And The tip side portion of the clamp member is lighter than the root side portion.

  According to the above aspect, since the distal end portion of the clamp member is light, energy for rotating the support member is small. Therefore, the size of the swing actuator can be reduced or energy can be saved.

  According to a preferred aspect of the present invention, four clamp members are provided.

  According to the above aspect, the electric wire can be favorably centered while the number of components is relatively suppressed, and the movement of the electric wire can be smoothly guided.

  An electric wire processing device according to the present invention is an electric wire processing device provided with the electric wire clamping device, wherein the electric wire includes a core wire and a covering material that covers a periphery of the core wire. The electric wire processing device includes a cutter blade for cutting the electric wire, a strip blade for stripping the covering material of the electric wire, and a crimping machine for crimping a terminal to an end of the electric wire. The electric wire clamping device is configured to grip the electric wire when the cutter blade cuts the electric wire, when the strip blade peels off the covering material, and when the crimping machine crimps the terminal. It is configured.

  According to the above-mentioned electric wire processing device, the above-mentioned electric wire clamp device can be used for cutting an electric wire, stripping a covering material, and crimping a terminal. Further, when changing the electric wire to be processed to an electric wire having a different outer diameter, it is not necessary to replace parts of the electric wire clamping device, so that the setting of the electric wire processing device can be performed quickly and easily.

  ADVANTAGE OF THE INVENTION According to this invention, the replacement | exchange operation of the part accompanying the change of the specification of an electric wire is unnecessary, the electric wire can be centered favorably when gripping an electric wire, and the electric wire which can guide the movement of the electric wire smoothly can be used. A clamp device and an electric wire processing device provided with the clamp device can be provided.

It is a top view showing typically the composition of the electric wire processing device concerning an embodiment. It is a perspective view of an electric wire. It is a perspective view of an electric wire clamp device, a strip mechanism, and a cutter mechanism. It is a side view of an electric wire clamp device, a strip mechanism, and a cutter mechanism. It is a perspective view of an electric wire clamp apparatus. It is a top view of an electric wire clamp device. It is a front view of an electric wire clamp apparatus. It is a perspective view of a clamp body. It is a perspective view of a clamp body. It is a side view of a clamp body. It is a rear view of a clamp body. It is an expansion perspective view of the tip part of a clamp body when guiding an electric wire. FIG. 3 is an enlarged perspective view of a part of the electric wire clamp device. It is an expansion perspective view of the tip part of a clamp body at the time of grasping an electric wire. It is sectional drawing of the conventional electric wire clamp apparatus. It is a perspective view of the conventional electric wire clamp device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view schematically illustrating a configuration of an electric wire processing apparatus 1 according to an embodiment of the present invention. In the following description, the right side and the left side of FIG. The upper side and the lower side in FIG. 1 are the left side and the right side, respectively. However, each direction in the following description is only a direction determined for convenience of description, and does not limit the present invention in any way.

  The wire processing device 1 includes a wire drawing machine 25, a feeding device 20 that sends out the wire 5, wire clamp devices 30F and 30R, strip mechanisms 12F and 12R, a cutter mechanism 11, crimping machines 13F and 13R, and a tray. 8 is provided. As shown in FIG. 2, the electric wire 5 is a covered electric wire, and includes a core wire 5a made of a conductor and a coating material 5b made of an insulator covering the periphery of the core wire 5a.

  The wire drawing machine 25 is a device that removes the curl of the electric wire 5 and straightens the electric wire 5. The wire drawing machine 25 has a plurality of rollers arranged in a staggered manner.

  The feeding device 20 is only required to be a device that can send out the electric wire 5, and its specific configuration is not limited at all. In this embodiment, the feeding device 20 includes a pair of left and right driving rollers 21a driven by a motor (not shown), a driven roller 21b, and a transport belt 22 wound around the driving roller 21a and the driven roller 21b. I have. When the drive roller 21a runs the transport belt 22, the electric wire 5 sandwiched between the left and right transport belts 22 is sent forward.

  The electric wire clamp devices 30F and 30R are devices for holding the electric wire 5. In particular, the electric wire clamp device 30F is a device that guides the electric wire 5 along a predetermined center line CL and grips the electric wire 5. In the present embodiment, the electric wire clamp device 30F releases the grip of the electric wire 5 when the feeding device 20 sends out the electric wire 5, and guides the movement of the electric wire 5 along the center line CL. The electric wire clamping devices 30F and 30R grip the electric wire 5 after the electric wire 5 moves along the center line CL. The electric wire clamp devices 30F and 30R are configured to be able to move back and forth. In other words, the electric wire clamp devices 30F and 30R are configured to be able to approach and separate from the strip mechanisms 12F and 12R along the center line CL. When stripping the covering material 5b at the end of the electric wire 5, the electric wire clamping devices 30F and 30R move so as to separate from the strip mechanisms 12F and 12R, respectively. Furthermore, the electric wire clamp devices 30F and 30R are configured to be able to turn around the vertical line 30c. When crimping the terminal 7 to the end of the wire 5, the wire clamp devices 30F and 30R pivot toward the crimping machines 13F and 13R.

  The cutter mechanism 11 is a mechanism for cutting the electric wire 5. As shown in FIG. 3, the cutter mechanism 11 includes a pair of upper and lower first cutter blades 11A and a second cutter blade 11B. The first cutter blade 11A is fixed to the first block 14A. The second cutter blade 11B is fixed to the second block 14B. The first block 14A and the second block 14B are slidably engaged with the guide 15. The first block 14A and the second block 14B are connected to a motor 16, and are driven up and down by the motor 16. When the motor 16 moves the first block 14A and the second block 14B toward and away from each other, the first cutter blade 11A and the second cutter blade 11B approach and move away from each other.

  The strip mechanisms 12F and 12R are mechanisms for stripping the covering 5b of the electric wire 5. As shown in FIG. 4, the strip mechanism 12F is disposed behind the cutter mechanism 11, and strips off the covering material 5b at the front end of the rear electric wire 5 gripped by the electric wire clamping device 30F. On the other hand, the strip mechanism 12R is disposed in front of the cutter mechanism 11, and strips off the covering material 5b at the rear end of the front wire 5 held by the wire clamp device 30R. As shown in FIG. 3, each of the strip mechanisms 12F and 12R has a first strip blade 12A and a second strip blade 12B arranged on both upper and lower sides of the electric wire 5. Here, the first strip blade 12A is arranged above the electric wire 5, and the second strip blade 12B is arranged below the electric wire 5. The first strip blade 12A and the second strip blade 12B face each other with the electric wire 5 interposed therebetween. The first strip blade 12A is fixed to the first block 14A, and the second strip blade 12B is fixed to the second block 14B. The first strip blade 12A and the second strip blade 12B are configured to move up and down by the driving force of the motor 16 and to approach and separate from each other.

  The crimping machines 13F and 13R are devices for crimping the terminal 7 to the end of the electric wire 5. As described above, the wire clamp devices 30F and 30R are configured to be pivotable about the vertical line 30c. The crimping machine 13F is configured to crimp the terminal 7 to the front end of the electric wire 5 held by the electric wire clamping device 30F. The crimping machine 13R is configured to crimp the terminal 7 to the rear end of the wire 5 held by the wire clamp device 30R.

  The tray 8 is a box for collecting an electric wire (hereinafter referred to as a terminal-attached electric wire) 6 having the electric wire 5 and the terminals 7 crimped to both ends of the electric wire 5. As described later, the electric wire processing apparatus 1 continuously cuts the electric wire 5, peels off the covering material 5 b, and crimps the terminal 7 to continuously manufacture the electric wire with terminal 6. The tray 8 accommodates the plurality of electric wires with terminals 6 manufactured continuously as described above.

  The above is the overall configuration of the electric wire processing apparatus 1. Next, details of the electric wire clamp device 30F will be described.

  FIG. 5 is a perspective view of the electric wire clamp device 30F. FIG. 6 is a plan view of the electric wire clamp device 30F. FIG. 7 is a front view of the electric wire clamp device 30F. As shown in FIGS. 5 to 7, the electric wire clamping device 30 </ b> F includes a clamp body 40, a holding member 50 that holds the clamp body 40, an air cylinder 60, and a link mechanism 70. The arrows in FIGS. 5 and 6 indicate the feeding direction of the electric wire 5. In addition, in this embodiment, the electric wire 5 is sent forward. In the following description, the upstream side and the downstream side in the feeding direction of the electric wire 5 are referred to as the root side and the distal end side of the electric wire clamp device 30F, respectively. In the present embodiment, the front side and the rear side of the wire clamp device 30F correspond to the distal end side and the root side, respectively.

  First, the clamp body 40 will be described. The clamp body 40 is a member that defines a passage that guides the movement of the electric wire 5 and that holds the electric wire 5. 8 and 9 are perspective views of the clamp body 40. FIG. FIG. 10 is a side view of the clamp body 40, and FIG. 11 is a rear view of the clamp body 40. As shown in FIG. 11, the clamp body 40 has a first clamp member 40A, a second clamp member 40B, a third clamp member 40C, and a fourth clamp member 40D. That is, the clamp body 40 has four clamp members 40A to 40D. As shown in FIG. 8, these clamp members 40 </ b> A to 40 </ b> D are arranged around a center line CL and are arranged in a circumferential direction about the center line CL.

  The shapes or dimensions of the clamp members 40A to 40D may be different from each other, but are the same in the present embodiment. Each of the clamp members 40A to 40D includes an extending part 41, a supported part 42, and a connecting part 43. Here, the extending portion 41, the supported portion 42, and the connecting portion 43 are integrally formed. The extending portion 41, the supported portion 42, and the connecting portion 43 are an integral body. However, it is not particularly limited.

  The extending portion 41 extends in a direction parallel to the center line CL. In this specification, “extending in a direction parallel to the center line CL” means that a dimension in a direction parallel to the center line CL is larger than a dimension in a direction perpendicular to the center line CL. Further, “extending in a direction parallel to the center line CL” is not limited to a case in which it extends straight in a direction parallel to the center line CL. For example, the case where it extends spirally around the center line CL is also included. However, in the present embodiment, the extending portions 41 of the clamp members 40A to 40D extend straight in a direction parallel to the center line CL.

  The extending portions 41 of the clamp members 40A to 40D are assembled so as to surround the center line CL. FIG. 12 shows a tip portion of the extending portion 41. As shown in FIG. 12, the extending portion 41 has an electric wire contact surface 41a facing the center line CL. The wire contact surface 41a extends in a direction parallel to the center line CL and is arranged around the center line CL. The four electric wire contact surfaces 41a of the clamp members 40A to 40D have portions located in the same plane perpendicular to the center line CL. That is, the four electric wire contact surfaces 41a of the clamp members 40A to 40D are configured to be able to contact the same portion of the electric wire 5 in the direction along the center line CL. In the present embodiment, the electric wire contact surface 41a extends straight in a direction parallel to the center line CL, and is continuous without any steps in a direction parallel to the center line CL. Although there may be a gap between the wire contact surfaces 41a adjacent in the circumferential direction, no gap is formed in the present embodiment. The wire contact surfaces 41a are in contact with each other without any gap in the circumferential direction. Therefore, in the present embodiment, the clamp members 40A to 40D are in contact with each other without any gap in the circumferential direction. A passage 40a that guides the movement of the electric wire 5 in the longitudinal direction is defined by the electric wire contact surfaces 41a of the clamp members 40A to 40D.

  The electric wire contact surface 41a is formed long in a direction parallel to the center line CL. In the present embodiment, the length 41L (see FIG. 10) of the electric wire contact surface 41a in the direction parallel to the center line CL is the distance between the electric wire contact surface 41a and the center line CL when the electric wire clamp device 30F guides the electric wire 5. It is at least 10 times the distance 41r (see FIG. 12). However, the length 41L is not particularly limited. The length 41L may be 20 times or more the length 41r, or 30 times or more. From the viewpoint of suppressing sliding resistance when guiding the electric wire 5, the length 41L is preferably 100 times or less the length 41r. However, it is not limited.

  As shown in FIGS. 8 and 9, the supported portion 42 is provided at a position farther from the center line CL than the extending portion 41. The supported portion 42 has a support hole 42a extending in a direction parallel to the center line CL. The support pin 51 penetrates the support hole 42a. The supported portion 42 is supported by a support pin 51. As shown in FIG. 10, the supported portion 42 is provided at a position closer to the base (the right side in FIG. 10) than the intermediate position 41 m of the extending portion 41. In each of the clamp members 40A to 40D, the supported portion 42 is located closer to the base than the intermediate position.

  The connecting portion 43 may be provided on the extending portion 41, but is provided on the root side portion of the supported portion 42 here. In each of the clamp members 40A to 40D, the connecting portion 43 is disposed on the base side. The connection portion 43 has a connection hole 43a through which a connection pin 77 (see FIG. 13) described later is inserted. The connection hole 43a extends in a direction parallel to the center line CL.

  According to the present embodiment, as shown in FIG. 10, the dimension 41 p in the direction perpendicular to the center line CL in the tip side portion of the clamp members 40A to 40D is the dimension 41 q in the direction perpendicular to the center line CL in the root side portion. Less than. The tip portions of the clamp members 40A to 40D are configured to be more compact than the root portions. In addition, the weight of the distal end portion (the portion closer to the distal end than the intermediate position 41m) of the clamp members 40A to 40D is smaller than the weight of the root portion (the portion closer to the root than the intermediate position 41m). The tip side portions of the clamp members 40A to 40D are lighter than the root side portions. The configuration of the clamp body 40 has been described above.

  Next, the configuration of the holding member 50 will be described. The holding member 50 is a member that holds the clamp members 40A to 40D so that the electric wire contact surface 41a can approach and separate from the center line CL. In the present embodiment, the holding member 50 holds the clamp members 40A to 40D rotatably around the center line of the support pin 51. As shown in FIG. 13, the holding member 50 has four support pins 51 and a holder 52 that holds the support pins 51. The holder 52 is a front ring that holds the front end of the support pins 51. 52a, a rear ring 52b that holds the rear end of the support pin 51, and four rods 52c that connect the front ring 52a and the rear ring 52b. In the present embodiment, the rear ring 52b and the rod 52c are integrated, and the front ring 52a and the rod 52c are fixed by bolts 53.

  The clamp members 40A to 40D are assembled to the holding member 50. The extending portions 41 of the clamp members 40A to 40D extend forward of the front ring 52a. The supported portions 42 of the clamp members 40A to 40D are arranged between the front ring 52a and the rear ring 52b. The connecting portion 43 of the clamp members 40A to 40D is arranged between the front ring 52a and the rear ring 52b, and is arranged between two rods 52c arranged in the circumferential direction. The connecting portion 43 protrudes radially outward from the holder 52.

  The air cylinder 60 is an actuator that drives the clamp members 40A to 40D. As shown in FIG. 5, the air cylinder 60 is a single rod type air cylinder, and includes a cylinder body 65, a rod 61 extending from the cylinder body 65, and a support 62 that supports the cylinder body 65. The rod 61 is configured to extend and contract with respect to the cylinder body 65. The extension of the rod 61 refers to the movement of the rod 61 toward the outside of the cylinder body 65, and the contraction of the rod 61 refers to the movement of the rod 61 toward the inside of the cylinder body 65.

  The link mechanism 70 is a connection mechanism that connects the clamp members 40A to 40D such that the electric wire contact surfaces 41a of the clamp members 40A to 40D simultaneously approach and separate from the center line CL. That is, the link mechanism 70 is a mechanism that connects the clamp members 40A to 40D in an interlockable manner. The link mechanism 70 is a mechanism that connects the air cylinder 60 and the clamp members 40A to 40D. The link mechanism 70 includes a connecting plate 71, an arm 72 connecting the connecting plate 71 and the rod 61, a connecting tube 73, and an arm 74 connecting the connecting tube 73 and the support portion 62. The arm 72 and the rod 61 are rotatably connected, and the arm 74 and the support portion 62 are rotatably connected. As shown in FIG. 13, the link mechanism 70 has a link member 75 that connects the connecting plate 71 and the connecting portions 43 of the clamp members 40A to 40D. The link member 75 is rotatably connected to the connecting plate 71 by a connecting pin 76, and is rotatably connected to the connecting portion 43 of each of the clamp members 40A to 40D by a connecting pin 77. Although not shown, a hole is formed in the center of the connecting plate 71, and the electric wire 5 is sent from the rear side to the front side through this hole.

  As shown in FIGS. 3 and 4, the electric wire clamp device 30F includes a support base 85 as a support member that supports the clamp body 40, the holding member 50, the air cylinder 60, and the link mechanism 70. The support base 85 is capable of moving the clamp body 40, the holding member 50, the air cylinder 60, and the link mechanism 70 back and forth (see the arrow A1 in FIG. 3), and is configured to be rotatable around the vertical line 30c. (See arrow A2 in FIG. 3). Although the configuration of the support base 85 is not limited at all, for example, the support base 85 includes a base 85A that can rotate around the vertical line 30c and a slide base 85B that is supported by the base 85A and that can move back and forth with respect to the base 85A. May be provided. The electric wire clamp device 30F further includes an actuator 86 for rotating the base 85A and an actuator 87 for moving the slide base 85B back and forth. The vertical line 30c is a turning center line located at a position closer to the root side portion than the tip side portions of the clamp members 40A to 40D. The actuator 86 is a turning actuator that turns the holding member 50 around the turning center line 30c. The types of the actuators 86 and 87 are not limited at all, and for example, an air cylinder, a motor, or the like can be preferably used.

  As shown in FIG. 6, a nozzle 80 is provided on the rear side of the electric wire clamping device 30F (in FIG. 1, illustration of the nozzle 80 is omitted). However, the nozzle 80 is not always necessary and may be omitted.

  The above is the configuration of the electric wire clamp device 30F. Next, the operation of the electric wire clamp device 30F will be described.

  The air cylinder 60 is switched between a first state in which the rod 61 extends (see FIG. 5) and a second state in which the rod 61 contracts. By switching the state of the air cylinder 60, the electric wire clamp device 30F is switched between a state in which the electric wire 5 is gripped and a state in which the electric wire 5 is released.

  When the air cylinder 60 is switched to the first state, the driving force of the air cylinder 60 is transmitted to the clamp members 40A to 40D via the link mechanism 70, and the clamp members 40A to 40D are supported by the support pins as shown by arrows in FIG. It rotates around the center line of 51. Then, as shown in FIG. 14, the electric wire contact surfaces 41a of the clamp members 40A to 40D move so as to approach the center line CL. Thereby, all the electric wire contact surfaces 41a contact the electric wire 5, and the electric wire 5 is gripped by these electric wire contact surfaces 41a.

  On the other hand, when the air cylinder 60 is switched to the second state, the clamp members 40A to 40D rotate around the center line of the support pin 51 in a direction opposite to the direction indicated by the arrow in FIG. Then, as shown in FIG. 12, the electric wire contact surfaces 41a of the clamp members 40A to 40D move away from the center line CL. Thereby, the grip of the electric wire 5 by the electric wire contact surface 41a is released.

  Thus, in the electric wire clamping device 30F, when the air cylinder 60 is switched to the first state, the clamp members 40A to 40D grip the electric wire 5, and when the air cylinder 60 is switched to the second state, the clamp members 40A to 40D Release the grip of the electric wire 5. As shown in FIG. 12, when the grip of the electric wire 5 is released, the passage 40a for guiding the movement of the electric wire 5 is defined by the electric wire contact surfaces 41a of the clamp members 40A to 40D.

  Next, the operation of the electric wire processing apparatus 1 will be described. That is, a method for the electric wire processing apparatus 1 to manufacture the electric wire with terminal 6 will be described. The operation of the electric wire processing device 1 is controlled by the control device 9 (see FIG. 1).

  First, the control device 9 sends out the electric wire 5 by driving the feeding device 20. At this time, the electric wire clamp devices 30F and 30R are set in a state where the gripping of the electric wire 5 is released. As described above, the electric wire contact surfaces 41a of the clamp members 40A to 40D of the electric wire clamp device 30F extend straight in a direction parallel to the center line CL. The wire contact surface 41a is continuous without any steps in a direction parallel to the center line CL. Further, no gap is formed between the electric wire contact surfaces 41a adjacent in the circumferential direction (FIG. 12). Therefore, the electric wire 5 is not caught inside the electric wire clamp device 30F, and is smoothly guided by the electric wire clamp device 30F.

  The feeding device 20 stops when the wire 5 is fed forward by a predetermined length. After the feeding device 20 stops, the wire clamp devices 30F and 30R grip the wire 5. In addition, the operation | movement which the electric wire clamp apparatus 30F grips the electric wire 5 is as above-mentioned.

  Next, the control device 9 controls the motor 16 (see FIG. 3) to bring the first cutter blade 11A and the second cutter blade 11B closer to each other and cut the electric wire 5.

  Next, the control device 9 controls the motor 16 to bring the first strip blade 12A and the second strip blade 12B of the strip mechanisms 12F and 12R closer to each other, and cut the coating 5b of the electric wire 5. Then, the actuator 87 (see FIG. 3) is driven to move the electric wire clamp device 30F away from the strip mechanism 12F, and to move the electric wire clamp device 30R away from the strip mechanism 12R. As a result, the covering material 5b at the front end of the electric wire 5 gripped by the electric wire clamp device 30F is peeled off by the strip blades 12A and 12B of the strip mechanism 12F, and the core wire 5a at the front end of the electric wire 5 is exposed. Also, the covering material 5b at the rear end of the electric wire 5 gripped by the electric wire clamp device 30R is peeled off by the strip blades 12A and 12B of the strip mechanism 12R, and the core wire 5a at the rear end of the electric wire 5 is exposed.

  After that, the control device 9 drives the actuator 86 to rotate the electric wire clamp device 30F. The wire clamp device 30F turns to the left while holding the rear wire 5 and guides the front end of the rear wire 5 to the crimping machine 13F. Further, the control device 9 turns the electric wire clamp device 30R. The wire clamp device 30R turns right while holding the front wire 5 and guides the rear end of the front wire 5 to the crimping machine 13R. Then, the terminals 7 are crimped to the ends of the electric wires 5 by the crimping machines 13F and 13R.

  Thereafter, the wire clamp device 30F returns to the initial position (the position shown in FIG. 1) facing the strip mechanism 12F while holding the rear wire 5, and releases the grip of the wire 5. The operation in which the electric wire clamp device 30F releases the gripping of the electric wire 5 is as described above. After releasing the gripping of the front electric wire 5, the electric wire clamp device 30R returns to the initial position (the position shown in FIG. 1) facing the strip mechanism 12R. When the gripping by the wire clamp device 30 </ b> R is released, the terminal-equipped electric wire 6 falls and is collected on the tray 8.

  Thereafter, the above operation is repeated. Thereby, a plurality of electric wires with terminals 6 are continuously and sequentially manufactured.

  Next, effects provided by the electric wire processing device 1 and the electric wire clamp device 30F according to the present embodiment will be described.

  According to the electric wire clamping device 30F, as shown in FIG. 12, the electric wire 5 is moved along the center line CL by the electric wire contact surfaces 41a of the four clamp members 40A to 40D arranged in the circumferential direction around the center line CL. A guide passage 40a is defined. The electric wire contact surface 41a, which is the wall surface of the passage 40a, extends in a direction parallel to the center line CL. Therefore, according to the electric wire clamp device 30F, the electric wire 5 can be smoothly guided along the center line CL.

  Further, according to the electric wire clamp device 30F, the electric wire 5 can be gripped by driving the clamp members 40A to 40D such that the electric wire contact surface 41a approaches the center line CL. Here, each electric wire contact surface 41a can approach and separate from the center line CL at the same time, and the distance between the electric wire contact surface 41a and the center line CL can be adjusted according to the outer diameter of the electric wire 5. Therefore, according to the electric wire clamp device 30F, it is possible to grip a plurality of types of electric wires 5 having different outer diameters without replacing parts. Therefore, there is no need to replace parts with the change in the specification of the electric wire 5.

  When the number of the clamp members is two, the clamp members sandwich the electric wire 5 from two directions perpendicular to the center line CL. As described above, when the electric wire 5 is sandwiched from both sides, the center position of the electric wire 5 may be shifted in a direction perpendicular to the direction in which the electric wire 5 is sandwiched. However, according to the electric wire clamp device 30F according to the present embodiment, since the four clamp members 40A to 40D are provided, the number of the clamp members is different from the case where the number of the clamp members is two. The position is prevented from shifting in a specific direction. The electric wire 5 is gripped such that its center is located on the center line CL. Therefore, according to the electric wire clamp device 30F, the electric wire 5 can be favorably centered. Moreover, since the electric wire 5 is gripped from four directions, the electric wire 5 is less likely to be deformed as compared with the case where the electric wire 5 is gripped from two directions.

  Therefore, according to the electric wire clamp device 30F according to the present embodiment, it is not necessary to perform the replacement work of the parts due to the change of the specification of the electric wire 5, and it is possible to satisfactorily center the electric wire 5 when gripping the electric wire 5, The movement of the electric wire 5 can be smoothly guided.

  It is sufficient that the number of the clamp members constituting the clamp body 40 is three or more, and there is no particular limitation. In the present embodiment, the number is four (first to fourth clamp members 40A to 40D). According to the electric wire clamp device 30F according to the present embodiment, centering and guidance of the electric wire 5 can be performed favorably while suppressing the number of components.

  The wire contact surface 41a does not necessarily need to extend straight in a direction parallel to the center line CL, but in the present embodiment, extends straight in a direction parallel to the center line CL. Therefore, the movement of the electric wire 5 along the center line CL can be more smoothly guided.

  According to the present embodiment, the length 41L (see FIG. 10) of the electric wire contact surface 41a in the direction parallel to the center line CL is equal to the electric wire contact surface 41a and the center line CL when the electric wire clamp device 30F guides the electric wire 5. Is 10 times or more of the distance 41r (see FIG. 12) between them. In the present embodiment, when the air cylinder 60 is switched to the second state and the grip of the electric wire 5 is released, the electric wire 5 is guided along the center line CL. The distance 41r is a distance between the wire contact surface 41a and the center line CL when the grip of the wire 5 is released.

  According to the present embodiment, since the length 41L in the direction parallel to the center line CL on the wire contact surface 41a is long, when the wire 5 is gripped, the wire 5 deviates from the center line CL and bends. It can be reliably prevented. Therefore, the electric wire 5 can be favorably centered, and the electric wire 5 can be favorably guided along the center line CL. Further, since the length 41L of the electric wire contact surface 41a in the direction parallel to the center line CL is long, the area of the electric wire contact surface 41a is relatively large. Therefore, when the pressure (grip force per unit area) at which the wire contact surface 41a presses the wire 5 is constant, the grip force can be increased, and the wire 5 can be gripped sufficiently. Conversely, when the gripping force is constant, the pressure applied to the wire 5 from the wire contact surface 41a is reduced, so that local deformation of the wire 5 can be prevented. Therefore, the quality of the electric wire 5 can be kept good.

  By the way, if a gap is formed between the clamp members 40A to 40D arranged in the circumferential direction, when the wire 5 is thin, the wire 5 may be caught in the gap. However, according to the present embodiment, as shown in FIGS. 12 and 14, the clamp members 40A to 40D are in contact with each other without any gap in the circumferential direction. There is no risk of being caught in the gap between the members 40A to 40D. Therefore, according to the electric wire clamp device 30F according to the present embodiment, even when the thin electric wire 5 is used, the electric wire 5 can be gripped and guided satisfactorily.

  According to the present embodiment, the clamp members 40A to 40D are connected by the link mechanism 70 such that the electric wire contact surface 41a approaches and separates from the center line CL at the same time. That is, the clamp members 40A to 40D are connected so as to interlock. Therefore, the electric wire 5 can be satisfactorily gripped and released.

  According to the present embodiment, as shown in FIG. 10, the dimension 41 p in the direction perpendicular to the center line CL in the tip side portion of the clamp members 40A to 40D is the dimension 41 q in the direction perpendicular to the center line CL in the root side portion. Less than. As described above, since the distal end portions of the clamp members 40A to 40D are compact, it is easy to secure a space for installing other members near the distal end portion of the electric wire clamp device 30F. It is possible to reduce restrictions on the installation space of the members installed near the distal end portion of the electric wire clamp device 30F, for example, the cutter mechanism 11, the strip mechanism 12F, and the crimping machine 13F (see FIG. 1). Therefore, according to the present embodiment, the wire processing apparatus 1 can be downsized.

  According to the present embodiment, as shown in FIG. 3, the electric wire clamping device 30F is closer to the base portion than the support base 85 that supports the clamp members 40A to 40D and the tip side portions of the clamp members 40A to 40D. And an actuator 86 for rotating the support base 85 around the pivot center line 30c at the position. The tip portions of the clamp members 40A to 40D are lighter than the root portions. According to the present embodiment, since the distal end portions of the clamp members 40A to 40D are light, energy for rotating the support base 85 is small. Therefore, the size of the actuator 86 can be reduced or energy can be saved.

  According to the electric wire processing device 1 according to the present embodiment, when the electric wire 5 to be processed is changed to the electric wire 5 having a different outer diameter, it is not necessary to replace parts of the electric wire clamp device 30F. Setting can be performed quickly and easily.

  As mentioned above, although one embodiment of the present invention was described, the above-mentioned embodiment is only an example. Various other embodiments are possible. Hereinafter, examples of other embodiments will be briefly described.

  In the embodiment, the actuator that drives the clamp members 40A to 40D of the electric wire clamp device 30F is the air cylinder 60, but the actuator is not particularly limited. The actuator may be, for example, a servomotor or another actuator.

  In the above-described embodiment, the link mechanism 70 connects the clamp members 40A to 40D such that the electric wire contact surface 41a approaches and separates from the center line CL at the same time. However, the coupling mechanism is not limited to the link mechanism 70. For example, the coupling mechanism may be a mechanism including a gear or a transmission belt. The coupling mechanism may be a mechanism combining two or more of a link, a gear, and a transmission belt. For example, the coupling mechanism may include four gears that are formed at the base side of the supported portion 42 of the clamp members 40A to 40D and engage with each other.

  In the above embodiment, the electric wire clamp device 30F is configured to pivot around the vertical line 30c, but is not particularly limited. The electric wire clamp device 30F may be configured to move in a direction perpendicular to the center line CL. For example, the electric wire clamp device 30F may be configured to move left and right.

  In the above embodiment, the clamp members 40A to 40D are formed to be smaller on the tip side than on the root side, but are not particularly limited. The clamp members 40A to 40D are lighter on the tip side than on the root side, but are not particularly limited.

  As described above, the number of clamp members is not limited to four. The number of clamp members may be three, five, six, or seven or more.

  The application object of the electric wire clamp device 30F is not limited to the electric wire processing device. The electric wire clamp device 30F can be applied to any device that needs to guide the movement of the electric wire 5 along the center line CL and grasp the electric wire 5.

DESCRIPTION OF SYMBOLS 1 Electric wire processing apparatus 5 Electric wire 5a Core wire 5b Coating material 11A, 11B Cutter blade 12A, 12B Strip blade 13F Crimping machine 30F Electric wire clamp device 41a Electric wire contact surface 40A to 40D Clamp member 50 Holding member 60 Air cylinder (actuator)
70 Link mechanism (connection mechanism)
85 Support stand (support member)
86 actuator (slewing actuator)
CL center line

Claims (9)

An electric wire clamping device that grips the electric wire and guides the electric wire along a predetermined center line when the gripping of the electric wire is released,
Three or more clamp members each having a wire contact surface extending in a direction parallel to the center line and arranged around the center line, and arranged in a circumferential direction about the center line;
A holding member that holds the clamp member so that the wire contact surface can approach and separate from the center line,
An actuator that drives the clamp member such that the wire contact surface approaches and separates from the center line,
An electric wire clamping device provided with.   The wire clamp device according to claim 1, wherein the wire contact surface extends straight in a direction parallel to the center line.   The length of the electric wire contact surface in the direction parallel to the center line is 10 times or more the distance between the electric wire contact surface and the center line when guiding the electric wire, according to claim 1 or 2. Wire clamp device.   The wire clamp device according to any one of claims 1 to 3, wherein the clamp members are in contact with each other without any gap in a circumferential direction.   The electric wire clamp according to any one of claims 1 to 4, further comprising a connection mechanism that connects the clamp members so that the electric wire contact surfaces of the clamp members approach and separate from the center line at the same time. apparatus.   The electric wire clamp device according to any one of claims 1 to 5, wherein a tip side portion of the clamp member has a smaller dimension in a direction perpendicular to the center line than a root side portion. A support member for supporting the clamp member,
A pivot actuator that pivots the support member around a pivot centerline located at a position closer to a root side portion than a tip side portion of the clamp member,
The electric wire clamp device according to any one of claims 1 to 6, wherein a tip side portion of the clamp member is lighter than a root side portion.   The electric wire clamp device according to any one of claims 1 to 7, wherein four clamp members are provided. It is an electric wire processing device provided with the electric wire clamp device according to any one of claims 1 to 8,
The electric wire includes a core and a covering material that covers the periphery of the core,
A cutter blade for cutting the electric wire,
Strip blade for stripping the covering material of the electric wire,
A crimping machine for crimping a terminal to an end of the electric wire,
The wire clamp device is configured to grip the wire when the cutter blade cuts the wire, when the strip blade peels off the covering material, and when the crimping machine crimps the terminal. An electric wire processing device that is configured.

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