JP5888739B2 - Defective wire take-out device and defective wire take-out method - Google Patents

Description

  The present invention relates to a defective wire take-out device and a defective wire take-out method for picking up a defective wire such as a terminal crimp failure and taking it out from the wire transfer step in a wire carrying step for performing terminal processing such as stripping of the wire and terminal crimping. It is about.

  Conventionally, in an electric wire terminal processing step for manufacturing a wire harness, a plurality of electric wire clamps are arranged at an equal pitch and conveyed intermittently by an endless belt, and both ends of one electric wire are connected to two adjacent electric wire clamps. Hold and fix, peel off the insulation coating on both ends of the wire, crimp the terminal to both ends, detect the quality of the crimp connection with a camera, and stop the conveyance of the wire by the endless belt if the crimping is defective The operator has taken the work of removing the defective crimp wire from the wire clamp and removing it.

  In addition to the above, for example, Patent Document 1 (not shown) includes an electric wire measuring scale, a U-turn (a single electric wire is bent in a U shape, and both ends of the electric wire are arranged in parallel), and a cutting step. In addition, a method and an apparatus for producing a fixed-length electric wire (a method and an apparatus for taking out a defective electric wire) are described in which a core wire exposed in the middle of the electric wire is excluded as a defective product.

  This defective wire take-out device has a pair of wire chucks located on the lower front side of the wire clamp that is intermittently fed by an endless belt (front means the wire feed direction when measuring the wire), and the wire is placed in front of the wire clamp. A guide cover is arranged, a pair of electric wire chucks can be moved up and down with a vertical air cylinder, and a horizontal air cylinder is provided to advance the pair of electric wire chucks together with the vertical air cylinder, and the electric wire guide cover is lifted with the pair of electric wire chucks. And the window part which enables advance is provided and comprised.

Japanese Patent Laid-Open No. 10-3979 (FIGS. 11, 12, 18, and 22)

  However, in the defective wire take-out device described in the above-mentioned conventional patent document 1, when the defective wire is gripped by the pair of wire chucks and lifted / advanced from the wire clamp, it is gripped by the adjacent wire clamp. In such a case, there is a concern that the defective wire may easily interfere with the damaged wire, causing the wires to become entangled, or the defective wire to come out of the wire chuck, and the conveyance of the wire clamp must be stopped. . Also, because the wire guide cover is provided with a window part for raising and advancing a pair of wire chucks, a non-defective wire held by the wire clamp is caught by the window part, and the wire held by the subsequent adjacent wire clamp There was a concern that this could cause entanglement.

  In view of the above points, the present invention provides a defective wire extraction device and a defective wire extraction method that can smoothly and reliably take out a defective wire without interfering with a subsequent wire without stopping the conveyance of the wire. For the purpose.

  In order to achieve the above object, a defective wire takeout device according to claim 1 of the present invention includes an electric wire clamp opening member disposed above an electric wire clamp at a predetermined position among a plurality of electric wire clamps intermittently fed, An electric wire chuck disposed above the end of the electric wire held by the electric wire clamp at the predetermined position, the electric wire clamp opening member, each elevating drive means for raising and lowering the electric wire chuck, and the electric wire raised by the elevating drive means An electric wire guide member that is disposed between the chuck and the electric wire clamp opening member and the electric wire clamp at a predetermined position below so as to be movable forward and backward in the electric wire longitudinal direction by the advance / retreat driving means and supports the defective electric wire held by the electric wire chuck. And.

  With the above configuration, when the plurality of electric wire clamps are intermittently fed while holding the electric wire and the electric wire clamp holding the defective electric wire is intermittently fed to a predetermined position, the first lifting drive means is integrated with the electric wire clamp opening member. The lower wire chuck grips the defective electric wire, the electric wire clamp opening member lowered by the second lifting / lowering driving means pushes and opens the electric wire clamp at a predetermined position holding the defective electric wire, and the first lifting / lowering driving means causes the electric wire chuck to In a state where the defective electric wire is gripped, the electric wire is lifted together with the wire clamp opening member, and the defective electric wire is separated above the electric wire clamp. In this state, the electric wire guide member moves forward along the lower side of the defective electric wire held by the electric wire chuck by the advance / retreat driving means and supports the defective electric wire. The defective electric wire is separated (sorted) by the electric wire guide member from other non-defective electric wires held by the lower electric wire clamps. That is, the defective electric wire is separated above the other electric wires via the electric wire guide member and can be separated forward by the forward movement of the electric wire guide member by the advance / retreat driving means. Thereby, it is prevented that a defective electric wire interferes with another electric wire. These operations are preferably performed during one-pitch intermittent feed of the wire clamp. The number of wire clamps at a predetermined position may be one or two. In one case, one end of a straight wire is gripped, and in the case of two, both ends of a wire bent in a U shape are gripped. The number of push-open portions of the wire chuck or the wire clamp opening member also corresponds to the number of wire clamps at a predetermined position.

  The defective wire take-out device according to claim 2 is the defective wire take-out device according to claim 1, wherein the wire gripped by the wire clamp is intermittently fed along the wire guide cover and advanced by the advance / retreat driving means. The defective electric wire supported by the guide member is positioned so as to protrude in the longitudinal direction of the electric wire from the electric wire along the electric wire guide cover.

  With the above configuration, the wire guide member is advanced by the advancing / retreating drive means along the lower side of the defective wire held by the wire chuck, and the defective wire longer than the wire guide member is supported by the wire guide member. By protruding (derived) from the member to the front (electrical wire longitudinal direction), the defective electric wires are positioned to protrude forward (electrical wire longitudinal direction) from the electric wires that are intermittently fed along the lower electric wire guide cover (sorting). ) Thereby, interference with a defective electric wire and each electric wire along an electric wire guide cover is prevented reliably. The position of the end of the electric wire guide member on the electric wire protruding (leading out) side only needs to protrude slightly forward (in the electric wire protruding direction) from the end of the electric wire guide cover on the electric wire protruding side.

  The defective wire take-out method according to claim 3 is a wire transfer step of transferring each wire along the wire guide cover with a plurality of wire clamps, while holding the failed wire held by the wire clamp at a predetermined position with the wire chuck, The wire clamp at the predetermined position is opened by the wire clamp opening member, and the wire guide opening member is moved between the wire clamp opening member and the wire clamp at the predetermined position by the advance / retreat drive means. The wire is advanced in the longitudinal direction of the electric wire, the defective electric wire held by the electric wire chuck is supported by the electric wire guide member, and protrudes in the longitudinal direction of the electric wire from each electric wire along the electric wire guide cover.

  With the above configuration, when the plurality of electric wire clamps are intermittently fed while holding the electric wire and the electric wire clamp holding the defective electric wire is intermittently fed to a predetermined position, the first lifting drive means is integrated with the electric wire clamp opening member. The lower wire chuck grips the defective electric wire, the electric wire clamp opening member lowered by the second lifting / lowering driving means pushes and opens the electric wire clamp at a predetermined position holding the defective electric wire, and the first lifting / lowering driving means causes the electric wire chuck to In a state where the defective electric wire is gripped, the electric wire is lifted together with the wire clamp opening member, and the defective electric wire is separated above the electric wire clamp. In this state, the electric wire guide member moves forward along the lower side of the defective electric wire held by the electric wire chuck by the advance / retreat driving means and supports the defective electric wire. The defective electric wire is separated (sorted) by the electric wire guide member from other non-defective electric wires held by the lower electric wire clamps. That is, the defective electric wire is separated above the other electric wires via the electric wire guide member and separated forward by the forward movement of the electric wire guide member by the advance / retreat driving means. Thereby, it is prevented that a defective electric wire interferes with another electric wire. These operations are preferably performed during one-pitch intermittent feed of the wire clamp. The number of wire clamps at a predetermined position may be one or two. In one case, one end of a straight wire is gripped, and in the case of two, both ends of a wire bent in a U shape are gripped. The number of push-open portions of the wire chuck or the wire clamp opening member also corresponds to the number of wire clamps at a predetermined position.

  The wire guide member moves forward and backward along the lower side of the defective wire held by the wire chuck, and the defective wire longer than the wire guide member is supported by the wire guide member. By projecting (derived) in the longitudinal direction of the electric wire, the defective electric wire projects forward (in the longitudinal direction of the electric wire) and is positioned (sorted) rather than each electric wire that is intermittently fed along the lower wire guide cover. Thereby, interference with a defective electric wire and each electric wire along an electric wire guide cover is prevented reliably.

  According to the first aspect of the present invention, it is possible to pick up a defective wire smoothly and reliably from the wire clamp without stopping the conveyance of the wire while intermittently feeding a plurality of wires with each wire clamp. And by separating the defective wires upward from the other wires held by each wire clamp and separating them in the forward direction (wire protruding direction), the interference between the defective wires and the other wires and the entanglement associated therewith It is possible to prevent the electric wire from being stopped. Thereby, the terminal process of an electric wire can be performed efficiently and productivity of a wire harness can be improved.

  According to the second aspect of the present invention, the defective wire is intermittently fed along the wire guide cover by supporting the defective wire with the wire guide member and separating it by protruding in the longitudinal direction of the wires from the other wires below. It is possible to reliably prevent the interference between the electric wire and the defective electric wire and the entanglement associated therewith.

  According to the invention described in claim 3, while intermittently feeding a plurality of electric wires with each electric wire clamp, a defective electric wire can be picked up smoothly and reliably from the electric wire clamp without stopping the electric wire. And by supporting the defective wire from the other wires held by each wire clamp with the wire guide member and separating it upward and forward (wire protruding direction), the interference between the defective wire and the other wires and accompanying it It is possible to prevent entanglement and reliably prevent the electric wire from being stopped. Thereby, the terminal process of an electric wire can be performed efficiently and productivity of a wire harness can be improved.

It is a perspective view which shows one Embodiment of the defective electric wire extraction apparatus which concerns on this invention. It is a perspective view of an initial state which shows the effect | action of a defective electric wire extraction apparatus, and a defective electric wire extraction method. It is a perspective view which shows the state which similarly hold | gripped the defective electric wire with the electric wire chuck. It is a perspective view which shows the state which picked up the defective electric wire similarly. It is a perspective view which shows the state which similarly sorted the defective electric wire from the other electric wires with the electric wire guide plate (electric wire guide member).

  FIG. 1 shows an embodiment of a defective wire take-out device according to the present invention. FIG. 1 shows an example using short electric wires.

  The defective wire take-out device 1 includes a plurality of wire clamps 2 in a wire transfer device 3 including a plurality of wire clamps 2 arranged at an equal pitch and an endless belt (not shown) that intermittently feeds the plurality of wire clamps 2 simultaneously. Each of the terminals of the electric wire 13 held by the two adjacent electric wire clamps 2 at a predetermined position is provided with a clamp opening plate (electric wire clamp opening member) 7 above the two adjacent electric wire clamps 2 at a predetermined position. A pair of left and right electric wire chucks 4 having the same pitch as that of the electric wire clamp 2 is disposed above 13c, and the clamp opening plate 7 is placed on the upper (vertical) upper large air cylinder (elevating drive means) 5 and the lower side. The air cylinder can be moved up and down with a small air cylinder (lifting drive means) 8 on the rear side, and the pair of electric wire chucks 4 can be lifted and lowered with a large air cylinder 5 on the upper side. A wire guide plate (wire guide member) 9 that is long in the front-rear direction is disposed between the pair of raised wire chucks 4 and the clamp opening plate 7 and the lower wire clamp 2, and the wire guide plate 9 is connected by a long horizontal air cylinder (advancing / retreating drive means) 10 having an axial center extending in the front-rear direction so as to be retractable (advanced / retracted).

  The wire clamp 2 is conveyed intermittently from right to left in FIG. The wire clamp 2 includes a pair of left and right wire gripping claws 11 made of metal, and a torsion coil spring (only a part of which is shown) 12 that is a spring member that biases the pair of wire gripping claws 11 in the closing direction. A base block 17 on the base end (base) side of each electric wire clamp 2 meshes with the unevenness of an endless belt (not shown). The electric wire 13 is clamped and fixed by the two electric wire clamps 2 adjacent to each other in a state where the electric wire 13 is bent in a U shape (U-turn). Each terminal 13a of the electric wire 13 is stripped of the insulation coating in the front process (not shown) on the right side in FIG. 1, and a waterproof rubber plug 14 is inserted into each terminal 13a from above the insulation coating, and the terminal 15 is connected to the core wire and the insulation coating. Each crimping piece is crimped.

  An electric wire guide cover 16 formed of a metal plate is disposed on the front side of the electric wire clamp 2 along the feeding direction of the electric wire clamp 2 (electric wire 13). The electric wire guide cover 16 includes a horizontal plate portion 16a positioned substantially on the same plane as the base block 17 on the base end (root) side of the electric wire clamp 2, a downwardly curved curved plate portion 16b in front of the horizontal plate portion 16a, and a curved shape. It consists of a downward vertical plate portion 16c following the plate portion 16b. A U-shaped electric wire 13 is slidably contacted in the feed direction along the electric wire guide cover 16. Since the electric wire 13 in the example of FIG. A long electric wire 13 (FIG. 2) described later is in sliding contact with the horizontal plate portion 16a, the curved plate portion 16b, and the vertical plate portion 16c.

  An electric wire guide plate 9 is disposed above the two adjacent electric wire clamps 2 and the electric wire guide cover 16 at predetermined positions. The front-rear direction length of the wire guide plate 9 is set to be longer than the front-rear direction length L of the wire guide cover 16, and the front end 18 a of the wire guide plate 9 is longer than the vertical plate portion 16 c on the front side of the wire guide cover 16 in FIG. Also protrude slightly forward. In FIG. 1, the protruding direction of the bent portion 13b of the electric wire 13 held by the electric wire clamp 2 is defined as “front”, and the protruding direction of the terminal 15 connected to the terminal 13a of the electric wire 13 is defined as “rear”.

  The electric wire guide plate 9 includes a rectangular board portion (bottom plate portion) 18 that is long in the horizontal front-rear direction, a vertical side plate portion 19 that is erected upward from both the left and right sides of the board portion 18, and a front end of the board portion 18. It is comprised with the girdle board part 20 suspended downward from 18a. A vertical section and a front view of the substrate portion 18 and the side plate portions 19 are substantially concave. The position of the saddle plate portion 20 may be behind the front end 18 a of the substrate portion 18.

  The board portion 18 supports (receives) the defective electric wire 13 ′ gripped by the upper electric wire chuck 4, and the side plate portion 19 guards the defective electric wire 13 ′ so as not to drop to the left and right outer sides. The saddle plate portion 20 is used to fasten and fix the male screw portion at the tip of the rod 10 a of the air cylinder 10 that is horizontal to the lower half side with a nut 21. A space 37 for disposing a defective electric wire is formed by being surrounded by the board portion 18 and the side plate portions 19 on both the left and right sides, and the space 37 is opened front and rear and upward and communicates with the outside. Reference numeral 37 a indicates a front opening of the space 37. The rear end 18b of the board portion 18 is positioned slightly above a bracket 22 of a metal frame 24 described later.

  A slight gap is formed between the lower surface of the substrate portion 18 and the upper surface of the cylindrical cylinder body (represented by reference numeral 10) of the horizontal air cylinder 10, and the rod 10a of the air cylinder 10 from the state of FIG. The wire guide plate 9 is retracted along the upper surface of the cylinder body 10 by the compression operation.

  The front end of the cylinder body 10 is fixed to the notch hole 23 of the vertical plate portion 22a of the bracket 22 having an L-shaped cross section behind the two adjacent electric wire clamps 2 at predetermined positions of the electric wire transfer device 3. The rod 10a passes through the notch hole 23 of the bracket 22 forward. The bracket 22 is fixed at right angles to the intermediate portion in the height direction of the vertical plate portion 25 of the frame 24 to form a part of the frame 24, and the lower end portion (not shown) of the vertical plate portion 25 is fixed to the apparatus main body (not shown). ing.

  A vertical rail 26 (see FIG. 3) is provided on the front surface of the vertical plate portion 25 of the frame 24, and a slider (not shown) of the base plate 27 perpendicular to the rail 26 is slidably engaged in the vertical direction. A plate-like vertical chuck stay 28 is disposed in parallel with a gap S on the front side of the front side, and the chuck stay 28 is connected and fixed to the rear base plate 27 by a right connection side plate 29.

  A cylinder body (a substitute for reference numeral 5) of a large downward air cylinder 5 is fixed to an upper end portion of the frame 24, a downward rod 5a of the air cylinder 5 is fixed to an upper end 27a of a vertical base plate 27, and the base plate 27 is The plate-shaped chuck stay 28 can be moved up and down with a large stroke by the air cylinder 5.

  A cylinder body (represented by reference numeral 8) of a small air cylinder 8 facing downward is fixed to the front surface of the base plate 27, and a downward clamp opening plate perpendicular to a downward rod (a nut portion is shown in FIG. 1) 8a of the air cylinder 8 7 is fixed. The small air cylinder 8 raises and lowers the clamp opening plate 7 with a smaller stroke than the air cylinder 5.

  The clamp opening plate 7 is formed to have a width in the left-right direction that is about the same as the pitch P between two adjacent wire clamps 2 or slightly wider than that, and a substantially V-shaped tip of the pair of wire gripping claws 11 of each wire clamp 2. A pair of left and right horizontal cylindrical portions (not shown) (push-open portions) that push the portion 11a downward and expand left and right are provided on the lower end side, and two adjacent electric wire clamps 2 at predetermined positions can be opened simultaneously. The clamp opening plate 7 is disposed above two adjacent electric wire clamps 2 at predetermined positions, and can move up and down in a gap S between the base plate 27 and the plate-shaped chuck stay 28.

  A cylinder body (substitute with reference numeral 6) of a small downward air cylinder 6 on the front side for opening and closing the electric wire chuck is fixed to the upper end portion of the chuck stay 28, and a tip of a downward rod 6a of the air cylinder 6 is connected to a tip of a connecting tool 38. Thus, the horizontal block portion 30b on the upper side of the substantially inverted concave chuck block 30 is connected and fixed. A pair of left and right links 31 are pivotally connected to the downward vertical block portions 30a on both the left and right sides of the chuck block 30 by upper hinge pins 35, respectively, and a pair of left and right chuck claws 32 are connected to the lower pair of left and right links 31. The pair of left and right chuck claws 32 are connected to each other by a central horizontal common hinge pin 33 below the upper hinge pin 35 so that the common hinge pin 33 is not shown on the lower side of the chuck stay 28. Screwed into a horizontal hole. The link 31, the chuck claw 32, and the hinge pins 33 to 35 constitute the electric wire chuck 4.

  The connecting member 38 has a rearward projecting convex portion 38a, and the slide convex portion 38a is slidably engaged with the vertical slit 39 in the center of the chuck stay 28, thereby shifting the position of each electric wire chuck 4 in the lateral direction. Thus, the gripping accuracy of the defective wire 13 ′ with respect to each terminal 13c is increased. In FIG. 1, the rod 6a of the air cylinder (wire chuck opening / closing means) 6 is extended, and the wire chuck 35 is closed to grip the defective wire 13 '. The expansion and contraction of the rod 6a causes the link 34 to open and close with the common hinge pin 31 on the fixed side as a fulcrum to open and close the chuck pawl 32. The rear air cylinder (second lifting drive means) 8 lifts and lowers the clamp opening plate 7 independently of the front wire chuck 4. An upper large air cylinder (first raising / lowering drive means) 5 raises and lowers the electric wire chuck 4 and the clamp opening plate 7 integrally at the same time with a large stroke.

  The pair of chuck claws 32 of the electric wire chuck 4 are supported so that one inner end thereof can be opened and closed (rotated) by a central horizontal common hinge pin 33, and the other outer end is supported by the left and right hinge pins 34 of each link 31. It is connected to the lower end part so that it can be opened and closed (turned). The upper end portion of each link 31 is connected to the vertical block portion 30a by a hinge pin 35 so as to be opened and closed (turned). The pair of left and right electric wire chucks 4 are disposed so as to face above the electric wire portion (terminal) 13c led forward from two adjacent electric wire clamps 2 at predetermined positions.

  In FIG. 1, the defective electric wire 13 ′ gripped by the pair of electric wire chucks 4 is placed on the upper surface of the horizontal substrate portion 18 of the electric wire guide plate 9, and the chuck stay 28 and the base plate 27 are connected behind the electric wire chuck 4. The side plate portion 29 and the clamp opening plate 7 are located above the horizontal substrate portion 18 of the wire guide plate 9 with a gap.

  The defective wire 13 ′ was determined to be defective in crimping by checking the terminal crimping portion 15 a with a CCD camera (not shown) in a step (not shown) immediately before the defective wire take-out device 1 in the wire transfer device 3 (right side in FIG. 1). In response to the NG signal from the CCD camera, the defective wire take-out device 1 is activated, and the defective wire 13 ′ is picked up by the wire chuck 4 from two adjacent wire clamps 2 at predetermined positions of the wire transfer device 3. Is placed on the wire guide plate 9 and separated from the other wires 13 of the wire transfer device 3. In this state, the operator removes the defective wire 13 'from the front.

  The operation of the defective wire take-out device 1, that is, the method for taking out a defective wire will be described below with reference to FIGS. 2 to 5, an example using a long electric wire 13 will be described. As for the defective wire extraction method, the expression of passive in the operation of the defective wire extraction device 1 is replaced with the expression of active.

  As shown in FIG. 2, when the electric wire 13 is normally conveyed (intermittently fed) by the electric wire conveying device 3 without the occurrence of defective products (defective electric wires) 13 ′, the electric wire guide plate 9 has a horizontal rear long air cylinder 10. The rod 10a in FIG. 1 is compressed and moved backward behind the wire clamp 2 above the wire clamp 2 at a predetermined position.

  The pair of electric wire chucks 4 and the clamp opening plate 7 are raised together with the chuck stay 28 and the base plate 27 by the compression operation of the rod 5a of the large vertical air cylinder 5 on the upper side of the frame 24 on the fixed side. The frame 24 is stationary. The pair of electric wire chucks 4 is positioned above the electric wire portion 13c led forward from the electric wire clamp 2 at a predetermined position in a state opened by the compression operation of the rod 6a of the vertical front air cylinder 6. The clamp opening plate 7 Is raised by the compression operation of the upper large air cylinder 5 and the rods 5a, 8a of the rear vertical air cylinder 8 and is positioned above the wire clamp 2 in a predetermined position.

  In FIG. 2, a pair of the wire chuck 4 and the clamp opening plate 7 is a horizontal substrate of the wire guide plate 9 with respect to the wire guide plate 9 retracted by the compression operation of the rod 10a of the horizontal air cylinder 10 (FIG. 1). It is located higher than the portion 18. The front end 18a and the flange plate portion 20 of the substrate portion 18 of the wire guide plate 9 are located behind the base plate 27 to which the rear cylinder 8 that drives the clamp opening plate 7 is fixed. A front opening 37a of a space 37 surrounded by the substrate portion (bottom plate portion) 18 of the electric wire guide plate 9 and the left and right side plate portions 19 is located behind the pair of electric wire chucks 4 so as to face each other.

  In a state before the electric wire 13 (defective electric wire 13 ′) in FIG. 2 is gripped by the electric wire chuck 4, the rod 6a of the front air cylinder 6 is compressed, and the slide convex portion 38a of the coupling tool 38 is chucked integrally with the rod 6a. The chuck block 30 ascends along the slit 39 of the stay 28 and rises integrally, and the pair of links 31 of the wire chuck 4 are acutely angled with the common hinge pin 33 fixed to the chuck stay 28 as a fulcrum. The pair of chuck claws 32 is closed and opened outward.

  The electric wire 13 bent in a U-shape is held along the lower electric wire guide cover 16 in a state in which both terminals 13a are held by two adjacent electric wire clamps 2 and the terminals 15 are crimped to the both terminals 13a in the previous step. As it is led forward, it curves downward and hangs down.

  The terminal 15 is crimped to the terminal 13a of the electric wire 13 in the previous step (terminal crimping step (not shown on the right side of FIG. 2)) of the defective electric wire take-out device 1 of FIG. 3, the crimping state of the terminal 15 (whether there is no allowance for the core wire from the crimping piece of the terminal 15 or abnormal crimping of the crimping piece, etc.) is confirmed immediately before the defective wire take-out device 1. In the pre-process of terminal crimping (further process on the right side), the both ends 13a of the electric wire 13 are gripped by the two adjacent electric wire clamps 2 and the insulation coating is peeled off from the electric wire 13 and the electric wire 13 is measured and U-turned. Has been done. The terminal processing in each step is performed in a state where the electric wire clamp 2 is temporarily stopped by intermittent feeding of the electric wire clamp 2 holding the electric wire 13 for each electric wire transfer device 3. These are well known.

  As shown in FIG. 3, when a crimping failure of the terminal 15 is detected by a CCD camera (not shown), the defective wire (a wire bent into a U shape having at least one of the terminals 13 a having a crimping failure portion) 13 ′. Is intermittently fed to a predetermined position (directly below) of the defective wire take-out device 1 by two adjacent wire clamps 2 of the wire transfer device 3, or simultaneously with the intermittent feed, the base plate 27 of the bad wire take-out device 1 is used. The chuck stay 28 is lowered together with the clamp opening plate 7 and the pair of opened wire chucks 4 by the extension operation of the rod 5a of the large air cylinder 5 on the upper side of the frame 24.

  When both ends 13c of the defective electric wire 13 ′ come directly below the pair of electric wire chucks 4, the pair of electric wire chucks 4 are closed by the extension operation of the rod 6a of the front air cylinder 6 and both ends of the defective electric wires 13 ′. The terminal 13c is held. Both ends 13c of the defective electric wire 13 'gripped by the electric wire chuck 4 are electric wire portions led forward from the electric wire clamp 2 at a predetermined position.

  As shown in FIG. 3, the chuck block 30 is integrally lowered by the extension operation of the rod 6a of the front air cylinder 6, and the pair of links 31 on the upper side of the wire chuck 4 open obtusely with the upper hinge pin 35 as a fulcrum. The pair of lower chuck claws 32 are closed with the common hinge pin 33 fixed to the stay 28 as a fulcrum, and the terminal 13c of the defective electric wire 13 'is gripped.

  As the wire chuck 4, for example, one that opens and closes the chuck claw 32 by driving a cam by air pressure without using the link 31, or one that opens and closes the chuck claw 32 by air pressure along a short rail in the left-right direction, etc. When the vertical air cylinder 6 is not used, the pair of left and right electric wire chucks 4 are lifted and lowered by a long vertical air cylinder (not shown) on the front side fixed to the frame 24, It is also possible to eliminate the upper long air cylinder 5 by independently elevating the rear clamp opening plate 7 with a long vertical air cylinder (not shown) fixed to the frame 24.

  In FIG. 3, almost simultaneously with each wire chuck 4 gripping each end 13 c of the defective wire 13 ′, the clamp opening plate 7 is lowered by the extension operation of the rod 8 a of the rear vertical air cylinder 8, and the defective wire 13 The electric wire gripping claws 11 of the two adjacent electric wire clamps 2 at the predetermined positions holding the both terminals 13a are opened against the bias of the spring member 12. The wire holding claws 11 of the wire clamp 2 are opened by the clamp opening plate 7 immediately after the terminal 13 c of the defective wire 13 ′ is held by the wire chuck 4. With the wire clamp 2 gripping the terminal 13a of the defective wire 13 ', the wire chuck 4 securely grips the terminal 13c of the defective wire 13' without misalignment. The terminal 13c of the defective electric wire is a portion in front of the terminal 13a.

  In FIG. 3, the defective electric wire 13 ′ grasped by the electric wire clamp 2 is grasped by the electric wire chuck 4, and the electric wire clamp 2 is opened by the clamp opening plate 7, and the electric wire obtained by grasping the defective electric wire 13 ′ as shown in FIG. The chuck 4 rises integrally with the clamp opening plate 7, the front and rear air cylinders 6, 8, the base plate 27, and the chuck stay 24 by the compression operation of the rod 5 a of the large air cylinder 5 on the upper side, and the defective wire 13 ′ is wire clamped. 2 away from the top. The defective electric wire 13 ′ gripped by the electric wire chuck 4 is picked up smoothly and reliably from the electric wire clamp 2 before the electric wire clamp 2 is closed by the bias of the spring member.

  The compression operation of the rod 5a of the large vertical air cylinder 5 on the upper side of the frame 24 raises the electric wire chuck 4 and the clamp opening plate 7 together with the front and rear air cylinders 6, 8, the chuck stay 28, and the base plate 27. The slider of the base plate 27 rises along the rail 26 (FIG. 3) of the frame 24), and in the meantime, the rod 8a of the rear air cylinder 8 is compressed and the clamp opening plate 7 is at the top dead center (original position). Return to.

  The rod 6a of the air cylinder 6 on the front side remains extended, and the electric wire chuck 4 is maintained in a state of gripping the defective electric wire 13 ′, and the defective electric wire 13 ′ is positioned above (in the air) the electric wire clamp 2 at a predetermined position. . The wire guide plate 8 is waiting horizontally behind the terminal 13a of the defective wire 13 '.

  Next, as shown in FIG. 5, the wire guide plate 9 is advanced by the extension operation of the rod 10a of the rear horizontal air cylinder 10, and the defective wire 13 ′ is placed on the substrate portion 18 of the wire guide plate 9 (support). At the same time, the non-defective electric wire 13 gripped by the electric wire clamp 2 and disposed on the lower electric wire guide cover 16 is separated forward as indicated by an arrow L1 and sorted upward and forward from the non-defective electric wire 13.

  The defective electric wire 13 ′ is such that the electric wire portion 13 e ′ ahead of the terminal 13 c gripped by the electric wire chuck 4 is placed on the upper surface of the substrate portion 18 of the electric wire guide plate 9 substantially horizontally, and the electric wire portion 13 e ′ placed. The forward electric wire portion 13d ′ hangs down while projecting forward from the front end 18a of the board portion 18 in a curved shape. The placed electric wire portion 13e 'is positioned substantially parallel to the electric wire portion 13e along the horizontal plate portion 16a of the lower electric wire guide cover 16.

  The length of the wire guide plate 9 in the front-rear direction is set to be longer than the length L in the front-rear direction of the wire guide cover 16, and the front end 18 a of the substrate portion 18 of the wire guide plate 9 is longer than the vertical plate portion 16 c on the front side of the wire guide cover 16. Is also projected forward so that the hanging portion 13d ′ of the defective wire 13 ′ hanging from the front end 18a of the substrate portion 18 of the wire guide plate 9 is gripped by the wire clamp 2 and hangs along the wire guide cover 16. Thus, the non-defective wire 13 is separated from the hanging portion 13d in the forward direction to prevent interference of the defective wire 13 ′ with the non-defective wire 13 and the entanglement of the wires 13, 13 ′. Thereby, it is possible to take out the defective electric wire 13 ′ without stopping the electric wire transfer device 3.

  Even when the front end 18 a of the substrate portion 18 of the wire guide plate 9 is arranged on the same plane as the vertical plate portion 16 c on the front side of the wire guide cover 16, the defective wire 13 ′ placed on the wire guide plate 9 is Because of its rigidity, the wire guide plate 9 curves from the front end 18a in a substantially arc shape and protrudes forward, so that there is little fear of interfering with a non-defective wire 13 that hangs down along the wire guide cover 16.

  In the state shown in FIG. 5, the defective electric wire 13 ′ is taken out by an operator who has seen a warning lamp (not shown) indicating the occurrence of the defective electric wire holding the defective electric wire 13 ′ on the electric wire guide plate 9 with one hand. This is done by pressing an operation button (not shown) with the hand to open the electric wire chuck 4 and taking out the defective electric wire 13 ′ from the electric wire guide plate 9. The opened wire chuck 4 is maintained in the open state of FIG.

  In FIG. 5, it is preferable that a transparent safety door (not shown) is disposed in front of the advanced wire guide plate 9. For example, the operator opens the safety door, presses an operation button (not shown) to take out the defective electric wire 13 ′, and then closes the safety door, so that the switch is activated and the horizontal air cylinder 10 is compressed and the electric wire is compressed. The guide plate 9 automatically retracts and returns to the original position shown in FIG.

  The defective wire extraction method will be further described below.

  The defective electric wire extraction method is that the electric wires 13 are conveyed by the plurality of electric wire clamps 2 along the front electric wire guide cover 16 in the left-right direction (from right to left). At the same time, the electric wire 13 ′ is held at a predetermined position by the electric wire chuck 4 lowered by the vertical upper air cylinder (elevating drive means) 5, and at the same time, the electric wire clamp 2 holding the defective electric wire 13 ′ is held by the upper air cylinder 5. The lower end of the clamp opening plate 7 is opened, the wire chuck 4 holding the defective wire 13 'is lifted together with the clamp opening plate 7 by the air cylinder 5, the defective wire 13' is detached from the wire clamp 2, and then An electric wire guide plate 9 is placed between the lower electric wire clamp 2 and the upper electric wire chuck 4 and the clamp opening plate 7 by a rear horizontal air cylinder (advance / retreat driving means) 10. The defective electric wire 13 ′ is supported by the electric wire guide plate 9 and protrudes forward in the longitudinal direction of the electric wire from the good electric wires 13 along the electric wire guide cover 16 so that the defective electric wire 13 ′ and the good electric wire are supported. This is to prevent interference with 13.

  The clamp opening plate 7 is greatly lowered integrally with the electric wire chuck 4 by the large vertical air cylinder 5 on the upper side, and the defective electric wire 13 is closed by the electric wire chuck 4 closed by the action of the small vertical air cylinder (electric wire chuck opening / closing means) 6 on the front side. After holding ', the clamp opening plate 7 is further lowered by a small vertical air cylinder (elevating drive means) 8 on the rear side, and the wire clamp 2 at a predetermined position holding the defective electric wire 13' is moved to the clamp opening plate 7 Push downward and outward on a horizontal cylinder to open it. The defective electric wire 13 ′ held by the electric wire clamp 2 is securely held by the electric wire chuck 4 without being displaced. With the clamp opening plate 7 opening the clamp 2 in a predetermined position, the electric wire chuck 4 is raised together with the defective electric wire 13 ′ and the clamp opening plate 7 by the upper cylinder 5 so that the defective electric wire 13 ′ can be smoothly removed. And it is surely picked up.

  After gripping the defective wire 13 ′ with the wire chuck 4, the wire chuck 4, the defective wire 13 ′, and the clamp opening plate 7 are raised together with the large air cylinder 5, and then below the defective wire 13 ′ gripped with the wire chuck 4. The electric wire guide plate 9 is moved forward by the horizontal air cylinder 10 on the rear side with a small gap on the side, and the defective electric wire 13 ′ is supported by the electric wire guide plate 9.

  When the defective wire 13 ′ is shorter than the length of the wire guide plate 9 in the front-rear direction, the defective wire 13 ′ is longer than the length of the wire guide plate 9. In this case (in many cases), the U-shaped bent portion of the defective wire 13 ′ (the portion corresponding to the reference numeral 13 b of the wire 13 in FIG. 1) and the upper hanging portion 13 d ′ are forward from the wire guide plate 9. Protrusively.

  The electric wire guide plate 9 is advanced by the horizontal air cylinder 10, and the electric wire portion 13 d ′ protruding forward from the electric wire guide plate 9 is forward of the non-defective electric wire 13 along the electric wire guide cover 16 of the electric wire transfer device 3. By projecting in the longitudinal direction, interference between the defective wire 13 ′ gripped by the wire chuck 4 and the good wire 13 on the wire guide cover 16 and entanglement associated therewith can be prevented.

  In addition, in the said embodiment, although demonstrated in the example of the crimping | compression-bonding electric wire at the time of crimping | bonding the terminal 15 to the terminal 13a of the electric wire 13 as defective electric wire 13 ', it inserts in the terminal 13a of the electric wire 13, for example other than crimping failure. The defective electric wire extraction device 1 and the defective electric wire extraction method can also be applied to defective electric wires such as a poor position of the waterproof rubber plug 14 and a defective peeling length of the terminal 13a of the electric wire 13.

  Moreover, in the said embodiment, although the electric wire 13 was bent in U shape and the terminal 15 was crimped | bonded to the both ends 13a of the electric wire 13, when crimping the terminal 15 only to the one end 13a of the electric wire 13, for example, In a state where the relatively short electric wire (13) is straightened, only one end (13a) of the straight electric wire (13) is held by the electric wire clamp 2, and the other end (13a) is along the electric wire guide cover 16. In this case, instead of the pair of wire chucks 4, one wire chuck (4) and a narrow clamp opening plate (7) corresponding to one wire clamp 2 in a predetermined position. And take out the defective electric wire (13 ').

  Further, in the above embodiment, the clamp opening plate 7 is disposed opposite to the rear of the wire chuck 4. However, for example, when the waterproof rubber plug 14 is not provided at the terminal 13 a of the wire 13, the clamp is held by the wire clamp 2. When the horizontal distance from the terminal 15 of the terminal 13a of the electric wire 13 to the electric wire clamp 2 is relatively long (with a margin), the electric wire chuck 4 is disposed opposite to the rear of the clamp opening plate 7 to It is also possible to grip the wire portion (13a) between the terminal 15 of the terminal 13a and the wire clamp 2 with the wire chuck 4.

  Moreover, in the said embodiment, although the electric wire guide plate 9 was arrange | positioned horizontally between the raise electric wire chuck | zipper 4 and the lower electric wire clamp 2, for example, the electric wire guide plate 9 is arranged inclining forward and downward, The wire chuck 4 holding the defective wire 13 ′ in FIG. 5 is automatically opened, and the defective wire 13 ′ is slid along the inclined wire guide plate 9 to the front of the wire guide cover 16 to be dropped and discharged. Is also possible.

  Moreover, in the said embodiment, although the electric wire guide plate 9 which has the horizontal board | substrate part 18 was used as an electric wire guide member for electric wire sorting, it replaced with this electric wire guide plate 9, for example, a U-shaped defective electric wire. It is also possible to use a pair of halved hooks or the like (not shown) on which the parallel wire portions 13e following the terminals 13a of 13 'are placed. For example, the pair of halved hook-shaped portions are connected at their front end lower portions by the hook plate portion (20), and the rod 10a of the horizontal air cylinder 10 is connected and fixed to the hook plate portion (20).

  Moreover, in the said embodiment, although the collar part 20 was provided in the front end 18a of the horizontal board | substrate part 18 of the electric wire guide plate 9, the rod 10 of the air cylinder 10 with the front-back direction length of the electric wire guide plate 9 horizontal, for example. If it is sufficiently longer than the extension stroke, it is also possible to provide a saddle plate 20 for connecting the rod 10a of the air cylinder 10 to the longitudinal intermediate portion (near the front end) of the substrate portion 18 of the wire guide plate 9. is there.

  Further, in the above embodiment, the wire chuck 4 and the clamp opening plate 7 are simultaneously lifted and lowered integrally with a common large air cylinder 5, and the clamp opening plate 7 is moved to the front wire chuck 4 with a small rear air cylinder 8. However, instead of the large air cylinder 5 or the small (short) air cylinder 8, the front and rear long air cylinders (not shown) are used to replace the electric wire chuck 4 and the clamp opening plate. 7 can be lifted and lowered independently or simultaneously.

  The defective wire extraction device and the defective wire extraction method according to the present invention, for example, when a defective wire is detected in the middle of conveying a plurality of wires in parallel in the terminal processing step of the wire, without stopping the conveyance of the wire. The defective electric wire can be taken out smoothly and reliably without interference with the subsequent electric wire, and can be used to increase the terminal processing capability of the electric wire.

DESCRIPTION OF SYMBOLS 1 Defective wire take-out device 2 Wire clamp 4 Wire chuck 5, 8 Air cylinder (lifting drive means)
7 Clamp opening plate (wire clamp opening member)
9 Wire guide plate (wire guide member)
10 Air cylinder (advance / retreat drive)
13 electric wire 13a terminal 13 'defective electric wire 16 electric wire guide cover

Claims (3)

  An electric wire clamp opening member disposed above the electric wire clamp at a predetermined position among the plurality of electric wire clamps intermittently fed, and an electric wire chuck disposed above the terminal of the electric wire held by the electric wire clamp at the predetermined position; The wire clamp opening member and the lifting drive means for raising and lowering the wire chuck, and the wire chuck raised by the lifting drive means and the wire clamp opening member and the wire clamp at the predetermined position below the wire clamp. A defective wire take-out apparatus comprising: an electric wire guide member that is disposed so as to be capable of moving back and forth in the longitudinal direction of the electric wire by a driving means and supports the defective electric wire held by the electric wire chuck.   The electric wire gripped by the electric wire clamp is intermittently fed along the electric wire guide cover, and the defective electric wire supported by the electric wire guide member advanced by the advance / retreat driving means is more wire than the electric wire along the electric wire guide cover. 2. The defective wire take-out device according to claim 1, wherein the defective wire take-out device is located so as to protrude in the longitudinal direction.   In the electric wire conveyance process of conveying each electric wire along the electric wire guide cover with a plurality of electric wire clamps, the electric wire clamp holding the defective electric wire grasped by the electric wire clamp at a predetermined position and the electric wire clamp opening member at the predetermined position The electric wire guide opening member and the electric wire guide member are moved forward in the longitudinal direction of the electric wire by the advancing / retreating driving means between the electric wire clamp opening member and the electric wire chuck and the electric wire clamp at a predetermined position, which are lifted by the lifting / lowering driving means. The defective electric wire extraction method, wherein the defective electric wire gripped in step (1) is supported by the electric wire guide member and protrudes in the longitudinal direction of the electric wire from each electric wire along the electric wire guide cover.

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