JP2019057395A - Wire clamp device and wire processing device with the same - Google Patents

Abstract

To provide a wire clamp device capable of holding and guiding multiple kinds of wires having different outer diameters in such a manner that winding tendency is not applied thereto, even without exchanging components.SOLUTION: A wire clamp device 30 comprises: a pair of clamp claws 31L and 31R; and a clamp claw driving device 32 which drives the clamp claws in such a manner that the clamp claws get closer to and separate from each other. The clamp claw driving device 32 is configured to switch the clamp claws 31L and 31R between a clamp position where a wire is held and a guide position where an interval between the clamp claws becomes larger than an outer diameter of the wire. The clamp claw driving device 32 is configured to select, as the guide position, at least a first guide position where the interval between the clamp claws 31L and 31R becomes a first interval and a second guide position where the interval becomes a second interval that is larger than the first interval.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electric wire clamp device and an electric wire processing device including the same.

  2. Description of the Related Art Conventionally, there is known an electric wire processing apparatus for cutting a covered electric wire (hereinafter simply referred to as an electric wire), stripping off a covering material at an end, and crimping a terminal. As this type of wire processing device, there is known a device provided with a feeding device that feeds out an electric wire, an electric wire clamp that grips the electric wire sent out from the feeding device, and an electric wire guide that consists of a nozzle that guides the movement of the electric wire. (For example, refer to Patent Document 1).

  FIG. 12 is a diagram schematically illustrating an example of the wire clamp 100 and the wire guide 110 of the conventional wire processing apparatus. The electric wire clamp 100 includes an upper clamp claw 101 and a lower clamp claw 102, and the electric wire 120 can be grasped and released by moving the lower clamp claw 102 up and down. The wire guide 110 is detachably attached to the wire clamp 100. When the electric wire clamp 100 is not gripping the electric wire 120, the electric wire 120 is fed in the direction of the arrow in the figure and guided by the electric wire guide 110.

  The electric wire processing apparatus is configured to be able to process a plurality of types of electric wires having different outer diameters. As exaggeratedly shown in FIG. 13A, when the wire guide 110 is configured to guide the thick wire 121, the center C1 of the portion of the wire 121 held by the wire clamp 100, and the wire guide The center C2 of the portion supported by 110 is substantially coincident. Therefore, when the electric wire clamp 100 grips the electric wire 121, the electric wire 121 is kept in a straight state. On the other hand, as shown exaggeratedly in FIG. 13B, when processing a thin electric wire 122, the center C1 of the portion of the electric wire 122 held by the electric wire clamp 100 and the portion supported by the electric wire guide 110. There may be a deviation between the center C <b> 2 and the center C <b> 2. As a result, when the wire clamp 100 grips the thin wire 122, the wire 122 may be bent. As a result, the electric wire 122 may be bent and wrinkled.

  Therefore, in the conventional wire processing apparatus, the wire guide 110 is configured to be detachable from the wire clamp 100, and the wire guide 110 is replaced according to the thickness of the wire. That is, the wire guide 110 having a large inner diameter is used when processing the thick wire 121, and the wire guide 110 having a large inner diameter is replaced with a wire guide having a small inner diameter when processing the thin wire 122.

JP 2000-123947 A

  However, in recent years, the need for high-mix low-volume production has increased, there are many types of wires to be processed, and it is necessary to change the wires more frequently than before. Therefore, the frequency | count of replacement | exchange of an electric wire guide increased, and the problem that it took time and effort than before occurred.

  The present invention has been made in view of such a point, and the object thereof is to be able to grip and guide a plurality of types of electric wires having different outer diameters so that they do not bend and bend without replacing parts such as an electric wire guide. It is providing an electric wire clamp device and an electric wire processing device provided with the same.

  The electric wire clamp device according to the present invention includes a pair of clamp claws and a clamp claw drive device that drives the pair of clamp claws so as to approach and separate from each other. The clamp claw driving device is configured to be able to switch the pair of clamp claws between a clamp position for gripping an electric wire and a guide position where an interval between the pair of clamp claws is larger than an outer diameter of the electric wire. . The clamp claw driving device further includes at least a first guide position at which a distance between the pair of clamp claws is a first distance as the guide position, and a distance between the pair of clamp claws is larger than the first distance. The second guide position that is the second interval can be selected.

  In the said electric wire clamp apparatus, an electric wire can be hold | gripped by switching a clamp nail | claw to a clamp position with a clamp nail drive device. Thus, the electric wire can be processed by gripping the electric wire with the clamp claws. On the other hand, when the clamp claw is switched to the guide position by the clamp claw driving device, the distance between the clamp claws becomes larger than the outer diameter of the electric wire. Therefore, an electric wire can pass between both clamp claws, and the electric wire sent out can be guided by both clamp claws. Therefore, it is possible to guide the electric wire without a dedicated part such as an electric wire guide.

  Furthermore, in the said electric wire clamp apparatus, the 1st guide position and 2nd guide position from which the space | interval of both clamp claws differs can be selected as a guide position. When a relatively thin electric wire is used, the distance between the clamp claw and the electric wire when guiding the electric wire can be suitably maintained by selecting the first guide position where the distance between both clamp claws is relatively small. . On the other hand, when a relatively thick electric wire is used, the distance between the clamp claw and the electric wire when guiding the electric wire is suitably maintained by selecting the second guide position where the distance between both clamp claws is relatively large. Can do. Thus, the first guide position and the second guide position can be appropriately selected according to the outer diameter of the electric wire. Therefore, there is no need to replace parts such as wire guides according to the thickness of the wire, and multiple types of wires with different outer diameters can be gripped and guided without bending and without replacing parts. Can do.

  According to a preferred aspect of the present invention, there is information on at least a first electric wire having a first outer diameter or a second electric wire having a second outer diameter larger than the first outer diameter as the electric wire. An input device for inputting, and a clamp control device for controlling the clamp pawl drive device. The clamp control device selects the first guide position as the guide position when information on the first electric wire is input to the input device, and the information on the second electric wire is input to the input device. The second guide position is selected as the guide position.

  According to the above aspect, for example, when an operator inputs information on an electric wire to the input device, the guide position corresponding to the type of the electric wire is automatically selected by the clamp control device.

  According to a preferred aspect of the present invention, the clamp pawl drive device includes a cylinder tube filled with fluid, a piston disposed in the cylinder tube, and extends from the piston toward the outside of the cylinder tube. A fluid pressure cylinder having a piston rod coupled to the pair of clamp claws by a link mechanism. The clamp pawl driving device includes: a contact portion provided on the piston rod; at least a first stopper portion that contacts the contact portion at the first guide position; and a second guide position. A stopper member having a second stopper part that abuts against the abutting part, and a relative position between the piston rod and the stopper member of the fluid pressure cylinder, at least the abutting part and the first stopper And a stopper actuator that switches between a position where the part faces and a position where the contact part and the second stopper part face each other.

  According to the above aspect, when the piston rod of the fluid pressure cylinder expands and contracts, the pair of clamp claws approach or separate from each other. A relatively inexpensive fluid pressure cylinder can be used as an actuator for moving the pair of clamp claws closer to and away from each other. The piston rod of the fluid pressure cylinder originally takes only two positions, but the piston rod stops at an intermediate position when the contact portion provided on the piston rod contacts the stopper member, and this position is the guide position. It becomes. When the stopper actuator switches the relative position between the piston rod and the stopper member, the first stopper portion or the second stopper portion can be selected as the stopper portion with which the contact portion abuts. When the contact portion comes into contact with the first stopper portion, the clamp pawl is set at the first guide position, and when the contact portion comes into contact with the second stopper portion, the clamp pawl is set at the second guide position. According to the said aspect, a clamp nail drive device can be comprised, using a comparatively cheap fluid pressure cylinder as an actuator which drives a clamp nail.

  According to a preferred aspect of the present invention, the piston rod includes a first rod extending from the piston and a second rod extending from the piston to the opposite side of the first rod. The pair of clamp claws are connected to the first rod by the link mechanism, and the contact portion is provided on the second rod.

  According to the said aspect, a contact part and a stopper member can be arrange | positioned with respect to a cylinder tube on the opposite side to a link mechanism. Therefore, the degree of freedom of installation of the stopper member is high. When installing the stopper member, space constraints can be reduced.

  According to a preferred aspect of the present invention, the stopper member includes a step having a step surface forming the first stopper portion and another step surface forming the second stopper portion, and along the step. It is configured to be movable.

  According to the said aspect, a stopper member can be comprised simply.

  According to a preferred aspect of the present invention, the apparatus includes a stopper control device that controls the stopper actuator, and an origin positioning member that can contact the stopper member. The stopper control device is configured to control the position of the stopper member by controlling the stopper actuator on the basis of the position of the stopper member when contacting the origin positioning member.

  The position of the stopper member may be shifted by switching the guide position many times. However, according to the said aspect, the position of a stopper member is controlled on the basis of the position of the stopper member when it contacts with an origin positioning member. Therefore, even if the position of the stopper member is temporarily shifted, the position of the stopper member is corrected based on the position when it comes into contact with the origin positioning member. Therefore, the position of the stopper member can be accurately controlled, and the guide position can be switched satisfactorily.

  The electric wire processing apparatus which concerns on this invention is an electric wire processing apparatus provided with the said electric wire clamp apparatus. The electric wire includes a core wire made of a conductor and a covering material made of an insulator covering the core wire. The electric wire processing apparatus includes an electric wire processing mechanism for cutting the electric wire, peeling off the covering material at the end of the electric wire, or crimping a terminal against the end of the electric wire from which the covering material has been peeled off, A feeding device that feeds the electric wire toward the electric wire processing mechanism. The wire clamp device is disposed between the feeding device and the wire processing mechanism.

  According to the electric wire processing device, by switching the clamp claw to the guide position, the electric wire fed from the feeding device can be guided toward the electric wire processing mechanism by the pair of clamp claws. On the other hand, the electric wire can be gripped by switching the clamp claw to the clamp position, and the electric wire processing mechanism can cut the electric wire, peel off the covering material, or crimp the terminal. Therefore, it is possible to satisfactorily perform the wire guide to the wire processing mechanism and the wire processing by the wire processing mechanism while obtaining the above-described effects.

  According to the present invention, an electric wire clamping device capable of gripping and guiding a plurality of types of electric wires having different outer diameters without bending and without replacing parts such as an electric wire guide, and an electric wire processing device including the same Can be provided.

It is a top view showing typically the composition of the electric wire processing device concerning one embodiment of the present invention. It is a perspective view of the electric wire from which the coating material of the front-end | tip part was stripped off. It is a front view of the electric wire clamp device concerning one embodiment of the present invention. It is a right view of the said electric wire clamp apparatus. It is a front view of a clamp nail | claw when a mutual space | interval becomes the maximum. It is a front view of an electric wire clamp device when a clamp claw exists in the clamp position which grasps the 1st electric wire. It is a front view of a clamp claw when it exists in the clamp position which grasps the 1st electric wire. It is a front view of an electric wire clamp device when a clamp claw exists in the 1st guide position which guides the 1st electric wire. It is a front view of a clamp claw when it exists in the 1st guide position. It is a front view of an electric wire clamp device when a clamp claw exists in the 2nd guide position which guides the 2nd electric wire. It is a front view of a clamp claw when it exists in the 2nd guide position. It is a top view of the stopper member concerning other embodiments. It is a front view of the stopper member concerning other embodiments. It is a figure of the clamp nail drive device concerning other embodiments, (a) is a right view, and (b) is a front view. It is sectional drawing which represented typically an example of the electric wire clamp and electric wire guide of the conventional electric wire processing apparatus. It is sectional drawing when the electric wire clamp of the conventional electric wire processing apparatus hold | grips an electric wire, (a) represents the state when a thick electric wire is grasped, (b) represents the state when a thin electric wire is grasped.

  Embodiments of the present invention will be described below. FIG. 1 is a plan view schematically showing the 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 in FIG. 1 are the front side and the rear side, respectively. The upper and lower sides in FIG. 1 are the right side and the left side, respectively. However, each direction in the following description is only a direction defined for convenience of description, and does not limit the present invention.

  The electric wire processing device 1 includes an electric wire processing mechanism 10, a feeding device 20 that sends the electric wire 5 toward the electric wire processing mechanism 10, and an electric wire clamp device 30 that is disposed between the feeding device 20 and the electric wire processing mechanism 10. And an electric wire clamp device 29 disposed in front of the electric wire processing mechanism 10. 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 covering material 5b made of an insulator covering the core wire 5a.

  As shown in FIG. 1, the wire processing mechanism 10 includes a cutting blade 11 that cuts the electric wire 5, strip blades 12 </ b> F and 12 </ b> R that peel off the covering material 5 b at the end of the electric wire 5, and the covering material 5 b. Terminal crimping devices 13F and 13R for crimping the terminal 7 to the end of the electric wire 5 are provided. The strip blade 12F and the strip blade 12R are configured to peel off the covering material 5b at the front and rear ends of the electric wire 5, respectively. The terminal crimping device 13F and the terminal crimping device 13R are configured to crimp the terminal 7 to the front and rear ends of the electric wire 5, respectively.

  It is sufficient that the feeding device 20 is a device that can send out the electric wire 5, and the specific configuration thereof is not limited at all. In this embodiment, the feeding device 20 includes a driving roller 21a driven by a motor (not shown), a driven roller 21b, and a pair of conveying belts 22 wound around the driving roller 21a and the driven roller 21b on the left and right. Yes. As the drive roller 21a travels the conveyor belt 22, the electric wire 5 sandwiched between the left and right conveyor belts 22 is sent forward.

  A wire drawing machine 25 is disposed behind the feeding device 20 (upstream in the feeding direction of the electric wire 5). The wire drawing machine 25 is a device that removes curl from 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 wire clamp device 30 and the wire clamp device 29 guide the movement along the longitudinal direction of the wire 5 when the feeding device 20 sends out the wire 5, and grip the wire 5 when the wire processing mechanism 10 processes the wire 5. To do. The electric wire clamp device 30 guides the electric wire 5 toward the electric wire processing mechanism 10 when the feeding device 20 sends out the electric wire 5. Moreover, the wire clamp device 30 grips the front side portion of the electric wire 5 when processing the front end portion of the electric wire 5 after cutting. Next, a detailed configuration of the wire clamp device 30 will be described.

  3 and 4 are a front view and a right side view of the wire clamp device 30, respectively. The electric wire clamp device 30 includes a pair of left and right clamp claws 31L and 31R, a clamp claw drive device 32 that drives the clamp claws 31L and 31R so as to approach and separate from each other, and a control device 70 that controls the clamp claw drive device 32. And.

  The clamp pawl drive device 32 has an air cylinder 34 as an actuator. In the present embodiment, the air cylinder 34 is a double rod type double acting cylinder. The air cylinder 34 has a cylinder tube 35 filled with air, a piston 36 disposed inside the cylinder tube 35, and a piston rod 37 extending from the piston 36 toward the outside of the cylinder tube 35. The piston 36 is slidably disposed inside the cylinder tube 35. A first pressure chamber 38A is defined above the piston 36, and a second pressure chamber 38B is defined below the piston 36. The piston rod 37 includes a first rod 37 </ b> A that extends upward from the piston 36 and a second rod 37 </ b> B that extends downward from the piston 36.

  When air is supplied to the first pressure chamber 38A or air is discharged from the second pressure chamber 38B, the pressure in the first pressure chamber 38A becomes larger than the pressure in the second pressure chamber 38B, and the piston 36 moves downward. Moving. As a result, the first rod 37A contracts and the second rod 37B expands. In this specification, “the rods 37A and 37B contract” means that the protruding lengths of the rods 37A and 37B from the cylinder tube 35 become shorter. “The rods 37A and 37B extend” means that the protruding lengths of the rods 37A and 37B from the cylinder tube 35 become longer. When air is supplied to the second pressure chamber 38B or air is discharged from the first pressure chamber 38A, the pressure in the second pressure chamber 38B becomes larger than the pressure in the first pressure chamber 38A, and the piston 36 moves upward. Moving. As a result, the first rod 37A expands and the second rod 37B contracts. The control device 70 controls the air cylinder 34 by controlling the supply or discharge of air to the first pressure chamber 38A and the second pressure chamber 38B.

  The clamp claws 31L and 31R are connected to the first rod 37A by the link mechanism 33. The link mechanism 33 includes the first rod 37A and the two clamps so that both the clamp claws 31L and 31R approach each other when the first rod 37A is extended and both the clamp claws 31L and 31R are separated from each other when the first rod 37A contracts. The claws 31L and 31R are connected. FIG. 3 shows a state in which the first rod 37A is most extended and the distance between the clamp claws 31L and 31R is minimum (here, zero). FIG. 5 shows a state in which the first rod 37A contracts most and the distance between the clamp claws 31L and 31R is maximized.

  Although the specific configuration of the link mechanism 33 is not limited in any way, in the present embodiment, the base block 40 fixed to the distal end portion of the first rod 37A and the left and right supported by the base block 40 by the shaft 41 are swingable. The arm 42 and left and right arms 44L and 44R of L shape in front view supported by the left and right arms 42 by a shaft 43 so as to be swingable are provided. The left and right arms 44L and 44R are connected to each other by a shaft 45 so as to be swingable. The left and right clamp claws 31L and 31R are fixed to the front ends of the left and right arms 44L and 44R by bolts 46 (see FIG. 4).

  The clamp claws 31L and 31R have V-shaped edges when viewed from the front (see also FIG. 5). As shown in FIG. 3, the edge of the left clamp claw 31 </ b> L becomes narrower as it goes to the left, and the edge of the right clamp claw 31 </ b> R becomes narrower as it goes to the right. . Thereby, when both clamp claws 31L and 31R approach, the electric wire 5 is guided to the center position C along the edges of both clamp claws 31L and 31R, and the position of the electric wire 5 is suppressed from being shifted from the center position C. . However, the shape of the clamp claws 31L and 31R described here is merely an example and is not limited at all. The shapes of the clamp claws 31L and 31R are not necessarily formed in a V shape when viewed from the front.

  Since the first rod 37A and the second rod 37B move together, when the first rod 37A contracts, the second rod 37B expands. As described above, when the first rod 37A contracts, the distance between the clamp claws 31L and 31R increases. Therefore, when the second rod 37B is extended, the distance between the clamp claws 31L and 31R increases. The extension amount of the second rod 37B and the distance between the clamp claws 31L and 31R correspond one-on-one. Therefore, the distance between the clamp claws 31L and 31R can be controlled by controlling the extension amount of the second rod 37B. As will be described below, the clamp pawl drive device 32 according to the present embodiment is configured to be able to control the extension amount of the second rod 37B in multiple stages. Thereby, the clamp nail drive device 32 can control the interval between the both clamp claws 31L and 31R in multiple stages.

  The clamp pawl drive device 32 includes a contact member 39 attached to the lower end of the second rod 37B, a stopper member 50 that contacts the contact member 39, and a stopper actuator 60 that changes the position of the stopper member 50. ing.

  The contact member 39 is not limited at all, and may be a bolt that engages with the lower end of the second rod 37B, for example. The contact member 39 may be a separate member attached to the second rod 37B, but a part of the second rod 37B may also serve as the contact member 39. In other words, the contact member 39 may be integrated with the second rod 37B.

  The stopper member 50 includes a staircase 50A having first to ninth staircase surfaces 51 to 59. The first to ninth step surfaces 51 to 59 form stopper portions that contact the contact member 39, respectively. In the present embodiment, the staircase 50A has nine staircase surfaces 51 to 59, but the number of staircase surfaces is not limited to nine. The number of steps of the staircase 50A is not limited at all. The stopper member 50 is engaged with a guide rail 61 extending left and right. The stopper member 50 is movable along the guide rail 61 and is configured to be movable along the stairs 50A.

  The stopper actuator 60 is configured to drive the stopper member 50 along the guide rail 61. In the present embodiment, the stopper actuator 60 is constituted by a motor. The mechanism for driving the stopper member 50 is not limited at all. For example, the stopper member 50 may be provided with a roller that engages with the guide rail 61, and the motor may be coupled to the roller. Alternatively, the stopper member 50 may be connected to a conveyor belt, and the motor may be connected to a pulley wound around the conveyor belt. However, these are merely examples, and the type of the stopper actuator 60 and the mechanism for driving the stopper member 50 are not limited at all.

  An input device 71 is communicably connected to the control device 70. Information on the electric wire 5 processed by the electric wire processing device 1 is input to the input device 71. In other words, the input device 71 receives information on the electric wire 5 to be gripped and guided by the electric wire clamp device 30. The specific configuration of the input device 71 is not limited at all, and may be a keyboard, a push button, a touch panel, or the like, for example. Although details will be described later, the control device 70 receives information on the electric wire 5 from the input device 71 and controls the stopper actuator 60.

  An origin positioning member 66 that can come into contact with the stopper member 50 is disposed on the side of the stopper member 50. The origin positioning member 66 is disposed at a position where it comes into contact with the stopper member 50 when the stopper member 50 reaches a predetermined origin position (a position indicated by an imaginary line in FIG. 3). The control device 70 controls the position of the stopper member 50 by controlling the actuator 60, and controls the position of the stopper member 50 with the position of the stopper member 50 when contacting the origin positioning member 66 as the origin position.

  The above is the configuration of the wire processing device 1 and the wire clamping device 30. Next, operations of the wire processing device 1 and the wire clamping device 30 will be described.

  First, the electric wire 5 delivered from the feeding device 20 is guided forward (to the right in FIG. 1) by the electric wire clamping device 30 and the electric wire clamping device 29. Next, the electric wire 5 is held by the electric wire clamping device 30 and the electric wire clamping device 29 and is cut by the cutting blade 11. Next, the electric wire clamp device 30 turns to the right (upper side in FIG. 1) while holding the rear electric wire 5 after cutting, and guides the front end of the electric wire 5 to the strip blade 12F. On the other hand, the electric wire clamp device 29 turns to the left while holding the front electric wire 5 after cutting, and guides the rear end of the electric wire 5 to the stripper blade 12R. And the coating | covering material 5b of the front-end part of the electric wire 5 of the rear side is stripped off with the strip blade 12F. Further, the covering material 5b at the rear end of the front electric wire 5 is peeled off by the strip blade 12R. Thereafter, the electric wire clamp device 30 further turns to the right while holding the rear electric wire 5 and guides the front end of the rear electric wire 5 to the terminal crimping device 13F. The electric wire clamp device 29 further turns to the left while holding the front electric wire 5 and guides the rear end portion of the front electric wire 5 to the terminal crimping device 13R. And the terminal 7 is crimped | bonded to the front-end part of the electric wire 5 of the rear side by the terminal crimping apparatus 13F. The terminal 7 is crimped to the rear end portion of the front electric wire 5 by the terminal crimping device 13R. Next, the electric wire clamping device 30 returns to the initial position (position shown in FIG. 1) facing the cutting blade 11 while holding the rear electric wire 5, and releases the electric wire 5. That is, the electric wire 5 is released. The electric wire clamping device 29 returns to the initial position (position shown in FIG. 1) facing the cutting blade 11 after releasing the electric wire 5 on the front side. In addition, the electric wire (electric wire in which the terminal 7 is crimped to both ends) 5 released from the electric wire clamp device 29 is collected in the collection tray 8. Thereafter, the above operation is repeated. Thereby, the electric wire 5 with the terminal 7 crimped | bonded to both ends is produced sequentially.

  The electric wire processing apparatus 1 according to the present embodiment can process a plurality of types of electric wires 5 having different outer diameters. The wire clamp device 30 can guide and grip the feeding of a plurality of types of wires 5 having different outer diameters. Next, as a plurality of types of electric wires 5 having different outer diameters, the first electric wire 5A and the second electric wire 5B that is thicker than the first electric wire 5A will be described as an example, and guidance and gripping operations by the electric wire clamping device 30 will be described. . If the outer diameter of the first electric wire 5A is the first outer diameter d1, and the outer diameter of the second electric wire 5B is the second outer diameter d2, the second outer diameter d2 is larger than the first outer diameter d1. . That is, d2> d1.

  First, the operation in which the electric wire clamp device 30 holds and guides the first electric wire 5A will be described. When the information about the first electric wire 5A is input to the input device 71, the control device 70 drives the stopper actuator 60, and among the plurality of step surfaces 51 to 59, a predetermined step surface (here) Then, the stopper member 50 is moved so that the eighth step surface 58) faces the contact member 39 (see FIG. 6A).

  When gripping the first electric wire 5A, the control device 70 drives the air cylinder 34 to extend the first rod 37A and contract the second rod 37B as shown in FIG. 6A. As a result, the clamp claws 31L and 31R approach each other to grip the first electric wire 5A (see FIG. 6B). When gripping the first electric wire 5A, both clamp claws 31L and 31R are in contact with the first electric wire 5A.

  On the other hand, when guiding the movement of the first electric wire 5A, the control device 70 drives the air cylinder 34 to contract the first rod 37A and extend the second rod 37B. Thereby, both clamp claws 31L and 31R are separated from each other. However, since the contact member 39 faces the eighth step surface 58, the contact member 39 contacts the eighth step surface 58 as shown in FIG. 7A. Thereby, the first rod 37A and the second rod 37B are stopped at the midway position, and the contraction of the first rod 37A and the extension of the second rod 37B are restricted. As a result, as shown in FIG. 7B, the clamp claws 31L and 31R maintain a close position while providing a gap with the first electric wire 5A. The distance g1 between the clamp claws 31L and 31R is larger than the outer diameter d1 of the first electric wire 5A. In addition, although the space | interval of the clearance gap between each clamp nail | claw 31L, 31R and the 1st electric wire 5A is not specifically limited, For example, 0.05 mm-3.0 mm may be sufficient, and 0.5 mm-1.0 mm may be sufficient. Good (the gap is exaggerated in the drawing). Since a gap is provided between both the clamp claws 31L and 31R and the first electric wire 5A, both the clamp claws 31L and 31R can smoothly pass the first electric wire 5A. Moreover, since the said clearance gap is comparatively small, both the clamp claws 31L and 31R can prevent the 1st electric wire 5A slip | deviating to right and left or up and down. Therefore, both the clamp claws 31L and 31R can guide the movement of the first electric wire 5A satisfactorily.

  Next, the operation in which the electric wire clamp device 30 holds and guides the second electric wire 5B will be described. When the information about the second electric wire 5B is input to the input device 71, the control device 70 drives the stopper actuator 60, and among the plurality of step surfaces 51 to 59, a predetermined step surface (here) Then, the stopper member 50 is moved so that the first step surface 51) faces the contact member 39 (see FIG. 8A).

  Although illustration is omitted, when gripping the second electric wire 5B, the control device 70 drives the air cylinder 34 to extend the first rod 37A and pulls the second rod 37B in the same manner as when grasping the first electric wire 5A. Shrink. As a result, the clamp claws 31L and 31R approach each other to grip the second electric wire 5B.

  When guiding the movement of the second electric wire 5B, the control device 70 drives the air cylinder 34 to contract the first rod 37A and extend the second rod 37B. Here, the contact member 39 faces the first step surface 51. Therefore, as shown in FIG. 8A, when the second rod 37 </ b> B extends, the contact member 39 contacts the first step surface 51. Since the first staircase surface 51 is lower than the eighth staircase surface 58, the first rod 37A and the second rod 37B stop at a midway position, but the contraction amount of the first rod 37A and the extension amount of the second rod 37B. Is larger than when the contact member 39 is in contact with the eighth step surface 58 (when the movement of the first electric wire 5A is guided). Therefore, as shown in FIG. 8B, the gap g2 between the clamp claws 31L and 31R is wider than the gap g1 (see FIG. 7B) when the abutting member 39 abuts on the eighth step surface 58. As a result, the outer diameter d2 of the second electric wire 5B is larger than the outer diameter d1 of the first electric wire 5A, but both the clamp claws 31L and 31R are kept at a suitable distance from the second electric wire 5B while maintaining the second distance. It is positioned at a position away from the electric wire 5B. The gap between the clamp claws 31L and 31R and the second electric wire 5B is not particularly limited, but may be, for example, 0.05 mm to 3.0 mm or 0.5 mm to 1.0 mm. Thus, since a clearance gap is provided between both the clamp claws 31L and 31R and the 2nd electric wire 5B, both the clamp claws 31L and 31R can let the 2nd electric wire 5B pass smoothly. Moreover, since the clearance gap when guiding the movement of the 2nd electric wire 5B is also comparatively small, both the clamp claws 31L and 31R can prevent the 2nd electric wire 5B from shifting | deviating right and left or up and down. Therefore, both clamp claws 31L and 31R can guide the movement of the second electric wire 5B satisfactorily.

  As described above, according to the wire clamp device 30 according to the present embodiment, the pair of clamp claws 31L and 31R and the clamp claw drive device 32 that drives the pair of clamp claws 31L and 31R so as to approach and separate from each other. It has. The clamp pawl drive device 32 includes a position where the first rod 37A extends from the air cylinder 34 (see FIG. 6A) and a position where the second rod 37B extends halfway due to the contact member 39 contacting the stopper member 50 (see FIG. 6A). 7A and 8A). The position where the first rod 37A is extended is the position where both clamp claws 31L, 31R grip the electric wire 5 (see FIG. 6B), and corresponds to the “clamp position” in the present invention. The position where the second rod 37B extends halfway is a position where the distance between the clamp claws 31L, 31R is larger than the outer diameter of the electric wire 5, and corresponds to the “guide position” in the present invention. The clamp pawl drive device 32 is configured to be able to switch the clamp claws 31L and 31R between a clamp position and a guide position. Furthermore, the clamp pawl drive device 32 has at least a guide position (see FIG. 7B, hereinafter referred to as the first guide position) at which the gap between the clamp claws 31L and 31R becomes the first gap g1, and the first gap g1. It is possible to select a guide position (see FIG. 8B, hereinafter referred to as a second guide position) that becomes a second gap g2 that is larger than that.

  Therefore, according to the electric wire clamp device 30 according to the present embodiment, the electric wire 5 can be gripped by the clamp claws 31L and 31R by switching the clamp claws 31L and 31R to the clamp position. By gripping the electric wire 5 with the clamp claws 31L and 31R, the electric wire processing mechanism 10 can perform each process of cutting, stripping off the covering material, and terminal crimping without the electric wire 5 being moved. On the other hand, when the clamp claws 31L and 31R are switched to the guide position, the distance between the clamp claws 31L and 31R becomes larger than the outer diameter of the electric wire 5. Therefore, the electric wire 5 can pass between both the clamp claws 31L and 31R, and the movement of the electric wire 5 is guided by the both clamp claws 31L and 31R even without a dedicated electric wire guide (see reference numeral 110 in FIG. 12). can do.

  Furthermore, in the electric wire clamp device 30 according to the present embodiment, at least a plurality of guide positions with different intervals between the clamp claws 31L and 31R can be selected as the guide position. For example, as shown in FIG. 7B, when the relatively thin first electric wire 5A is used, by selecting the first guide position where the gap g1 between the clamp claws 31L, 31R is relatively small, the clamp claws 31L, The space | interval of 31R and 5 A of 1st electric wires can be maintained suitably. On the other hand, as shown in FIG. 8B, when the relatively thick second electric wire 5B is used, the clamp claw 31L is selected by selecting the second guide position where the distance g2 between the clamp claws 31L and 31R is relatively large. , 31R and the second electric wire 5B can be suitably maintained. Thus, the guide position can be appropriately selected according to the outer diameter of the electric wire 5. Therefore, it is possible to satisfactorily guide a plurality of types of electric wires 5 having different outer diameters. In the present embodiment, the step 50A of the stopper member 50 has nine step surfaces 51 to 59. Therefore, not only two guide positions (first guide position and second guide position) but also nine guide positions can be selected.

  As described above, according to the wire clamp device 30 according to the present embodiment, it is not necessary to replace parts such as the wire guide, and even if the parts are not replaced, a plurality of types of the wires 5 having different outer diameters can be bent. Can be gripped and guided in such a way.

  Further, according to the present embodiment, the control device 70 is configured to select the guide position according to the information on the electric wire 5 input to the input device 71. For example, the control device 70 selects the first guide position when information about the first electric wire 5A is input to the input device 71, and selects the second guide position when information about the second electric wire 5B is input. Therefore, for example, only by the operator inputting information on the electric wire 5 to the input device 71, the guide position corresponding to the type of the electric wire 5 is automatically selected.

  According to this embodiment, when the piston rod 37 of the air cylinder 34 expands and contracts, the pair of clamp claws 31L and 31R approach or separate from each other. A relatively inexpensive air cylinder 34 can be used as an actuator for moving the clamp claws 31L and 31R toward and away from each other. The piston rod 37 of the air cylinder 34 can originally take only two positions. However, according to this embodiment, when the contact member 39 provided on the piston rod 37 contacts the stopper member 50, the piston rod 37 stops at the midway position, and this position becomes the guide position. The guide position can be switched by the stopper actuator 60 changing the position of the stopper member 50. Therefore, according to the present embodiment, the guide positions of the clamp claws 31L and 31R can be appropriately switched while using the relatively inexpensive air cylinder 34 as an actuator for approaching and separating the clamp claws 31L and 31R.

  Further, according to the present embodiment, the air cylinder 34 is a double rod type double acting cylinder, and the piston rod 37 includes a first rod 37A and a second rod 37B extending in opposite directions. The clamp claws 31L and 31R are connected to the first rod 37A via the link mechanism 33, and the contact member 39 is provided on the second rod 37B. As shown in FIG. 3, the link mechanism 33 and the clamp claws 31 </ b> L and 31 </ b> R exist above the cylinder tube 35, and there is little room for space above the cylinder tube 35. However, according to the present embodiment, the contact member 39 and the stopper member 50 can be arranged on the opposite side (that is, the lower side) of the link mechanism 33 with respect to the cylinder tube 35. For this reason, the degree of freedom of installation of the stopper member 50 is great. Therefore, space restrictions can be reduced with respect to the installation of the stopper member 50.

  According to the present embodiment, the stopper member 50 includes the staircase 50 </ b> A having a plurality of staircase surfaces 51 to 59. The stopper member 50 is movable to the left and right along the guide rail 61, and is configured to be movable along the stairs 50A. According to the present embodiment, the stopper member 50 for switching the guide position can be configured easily.

  Moreover, according to this embodiment, the stopper actuator 60 which moves the stopper member 50 to right and left is provided. When the stopper actuator 60 moves the stopper member 50 along the stairs, the guide positions of the clamp claws 31L and 31R can be appropriately selected.

  By the way, when the electric wire processing apparatus 1 is temporarily stopped and then restarted, the position of the stopper member 50 may be displaced. However, according to the present embodiment, as shown in FIG. 3, an origin positioning member 66 that can come into contact with the stopper member 50 and makes the reference position clear is provided. The control device 70 is configured to control the position of the stopper member 50 with the position of the stopper member 50 when it comes into contact with the origin positioning member 66 as the origin position. Therefore, even if the position of the stopper member 50 is temporarily shifted, the position of the stopper member 50 is corrected based on the origin position. Therefore, the control device 70 can accurately control the position of the stopper member 50, and can accurately switch the guide positions of the clamp claws 31L and 31R.

  As mentioned above, although one embodiment of the present invention was described, it is needless to say that the embodiment of the present invention is not limited to the above embodiment, and there can be various other embodiments. Next, examples of other embodiments will be briefly described.

  In the embodiment, the stopper member 50 has the staircase 50A extending in the left-right direction, and the stopper actuator 60 is configured to drive the stopper member 50 in the left-right direction. However, the staircase 50A may not be formed in a straight line. As shown in FIG. 9, the stopper member 50 may be formed in a disk shape, and the stairs 50A may be formed in a circumferential shape. In the stopper member 50 shown in FIG. 9, the plurality of step surfaces 51 to 58 are formed in an arc shape in plan view. The stopper actuator 60 is configured to rotate the stopper member 50. When the stopper actuator 60 rotates the stopper member 50, the stopper member 50 moves along the staircase 50A, and the step surface facing the contact member 39 among the plurality of step surfaces 51 to 58 can be appropriately changed. . Even with such a stopper member 50, the above-described effects can be obtained. Furthermore, according to the stopper member 50 according to the present embodiment, the guide rail 61 (see FIG. 3) extending in the left-right direction is unnecessary. Moreover, the dimension of the left-right direction of the stopper member 50 can be made small. Therefore, the electric wire clamp device can be made compact in the left-right direction.

  Further, as shown in FIG. 10, the stopper member 50 may include a slope 50B instead of the staircase 50A. Even in the stopper member 50 having the inclined surface 50B, the portion that contacts the contact member 39 can be changed by moving along the guide rail 61. By changing the abutting portion of the slope 50B, the extension length of the second rod 37B when abutting can be changed. Therefore, the guide positions of the clamp claws 31L and 31R can be changed. Also in this embodiment, the same effect as that of the above embodiment can be obtained. In addition, in the above-described embodiment, the number of staircase surfaces is limited, and the guide position can be changed only in stages. However, according to this embodiment, the guide position can be changed continuously. Therefore, the distance between the clamp claws 31L and 31R when guiding the movement of the electric wire 5 can be freely adjusted, and more types of electric wires 5 can be gripped and guided.

  In the embodiment, the air cylinder 34 is a double rod type, and includes the second rod 37 </ b> B in addition to the first rod 37 </ b> A connected to the clamp claws 31 </ b> L and 31 </ b> R via the link mechanism 33. However, as shown in FIG. 11, the air cylinder 34 may be of a single rod type including only the first rod 37A. As shown in FIG. 11A, in this embodiment, the stopper member 50 is disposed behind the cylinder tube 35 (to the right of FIG. 11A). An L-shaped arm 48 is fixed to the first rod 37 </ b> A, and a contact member 39 is provided at the lower end portion of the arm 48. The contact member 39 is configured to move up and down as the first rod 37A expands and contracts. Also in this embodiment, the same effect as that of the above embodiment can be obtained.

  In each of the above embodiments, the air cylinder 34 is not limited to a double-acting type but may be a single-acting type. For example, a pressure chamber through which air is supplied or discharged may be formed on one of the pistons of the air cylinder 34, and a spring that urges the piston may be disposed on the other of the pistons.

  The actuator that moves the clamp claws 31L and 31R toward and away from each other is not limited to the air cylinder 34, but may be another fluid pressure cylinder such as a hydraulic cylinder.

  In the embodiment, the clamp claw driving device 32 includes the stopper actuator 60 that drives the stopper member 50. The position of the stopper member 50 is automatically changed by the stopper actuator 60. However, the position of the stopper member 50 can be changed manually by the operator. The electric wire clamping device according to the present invention includes a configuration in which the stopper member 50 is manually changed in position.

  In the above-described embodiment, the clamp pawl drive device 32 includes the air cylinder 34 as an actuator that moves the clamp pawls 31L and 31R toward and away from each other, and the stopper actuator 60 that drives the stopper member 50. However, the clamp pawl drive device 32 may be configured by a single actuator capable of multi-stage or continuous position change. For example, the clamp claw driving device 32 may be a servo motor connected to the clamp claws 31L and 31R via the link mechanism 33. The electric wire clamp device may include, for example, a rack connected to the link mechanism 33 connected to the clamp claws 31L and 31R, a pinion engaged with the rack, and a servo motor connected to the pinion. .

  The electric wire clamp device according to the present invention is not necessarily provided in the electric wire processing device. The electric wire clamp device according to the present invention can be applied to any device that requires gripping and guiding of electric wires.

DESCRIPTION OF SYMBOLS 1 Electric wire processing apparatus 5 Electric wire 5A 1st electric wire 5B 2nd electric wire 5a Core wire 5b Coating | covering material 10 Electric wire processing mechanism 20 Feeding device 30 Electric wire clamp apparatus 31L, 31R Clamp claw 32 Clamp claw drive apparatus 33 Link mechanism 34 Air cylinder (fluid Pressure cylinder)
35 Cylinder tube 36 Piston 37 Piston rod 37A First rod 37B Second rod 39 Contact member (contact portion)
50 Stopper Member 50A Staircase 60 Stopper Actuator 66 Origin Positioning Member 70 Control Device (Clamp Control Device, Stopper Control Device)
71 Input device

Claims (7)

A pair of clamp claws;
A clamp claw driving device that drives the pair of clamp claws to approach and separate from each other, and
The clamp claw driving device is configured to be able to switch the pair of clamp claws between a clamp position for gripping an electric wire and a guide position where an interval between the pair of clamp claws is larger than an outer diameter of the electric wire,
The clamp pawl driving device includes at least a first guide position where the distance between the pair of clamp claws is a first distance as the guide position, and a distance between the pair of clamp claws larger than the first distance. The electric wire clamp apparatus comprised so that selection of the 2nd guide position used as the space | interval of 2 is possible. As the electric wire, at least an input device for inputting information of a first electric wire having a first outer diameter or a second electric wire having a second outer diameter larger than the first outer diameter;
A clamp control device for controlling the clamp pawl drive device,
The clamp control device selects the first guide position as the guide position when information on the first electric wire is input to the input device, and the information on the second electric wire is input to the input device. The wire clamp device according to claim 1, wherein the second guide position is selected as a guide position. The clamp claw driving device is:
A cylinder tube filled with fluid, a piston disposed in the cylinder tube, and a piston rod extending from the piston toward the outside of the cylinder tube and connected to the pair of clamp claws by a link mechanism, A fluid pressure cylinder,
A contact portion provided on the piston rod;
A stopper member having at least a first stopper portion that contacts the contact portion at the first guide position, and a second stopper portion that contacts the contact portion at the second guide position;
The relative position between the piston rod and the stopper member of the fluid pressure cylinder is at least a position where the contact portion and the first stopper portion face each other, and the contact portion and the second stopper portion face each other. A stopper actuator that switches to a position to be
The electric wire clamp device according to claim 1, comprising: The piston rod includes a first rod extending from the piston, and a second rod extending from the piston to the opposite side of the first rod,
The pair of clamp claws are connected to the first rod by the link mechanism,
The electric wire clamp device according to claim 3, wherein the contact portion is provided on the second rod.   The stopper member includes a step having a step surface that forms the first stopper portion and another step surface that forms the second stopper portion, and is configured to be movable along the step. The electric wire clamp device according to 3 or 4. A stopper control device for controlling the stopper actuator;
An origin positioning member that can come into contact with the stopper member,
The said stopper control apparatus is comprised so that the position of the said stopper member may be controlled by controlling the said stopper actuator on the basis of the position of the said stopper member when it contacts with the said origin positioning member. The electric wire clamp apparatus as described in any one of -5. It is an electric wire processing apparatus provided with the electric wire clamp device according to any one of claims 1 to 6,
The electric wire includes a core wire made of a conductor, and a covering material made of an insulator covering the core wire,
An electric wire processing mechanism for cutting the electric wire, peeling off the covering material at the end of the electric wire, or crimping a terminal against the end of the electric wire from which the covering material has been peeled off;
A feeding device for feeding out the electric wire toward the electric wire processing mechanism,
The electric wire clamp device is an electric wire processing device disposed between the feeding device and the electric wire processing mechanism.

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