JP2004220977A - Manufacturing method for wire harness, manufacturing device and joint wire carrying unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically manufacture a wire harness requiring a middle joint process in as short a cycle time as possible. <P>SOLUTION: A main wire processing line L1 for peeling is provided in the middle part of a coated wire WL. Against the peeled part WL1 of the coated wire WL peeled with the main wire processing line L1, a branch wire processing line L2 for processing another coated wires WB whose end is electrically connected is operated in parallel. After completing to connect the coated wires WL and WB, the coated wire WL is stocked in a stock unit 300 before cutting. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and an apparatus for manufacturing a wire harness, and a joint wire holding unit.
[0002]
[Prior art]
A wire harness is an electric wiring system in which a plurality of electric wires are connected by a connector to form a preset circuit. As a form of the wiring, in addition to the step of connecting terminals to both ends of the covered electric wire and inserting the connected terminals into the connector housing, the intermediate part of the covered electric wire is peeled (this step is referred to as an “intermediate peeling step”). ), And an intermediate joint step of electrically connecting the terminal portion of another covered electric wire to the stripped portion may be included.
[0003]
Techniques for manufacturing wire harnesses that require an intermediate joint process include a main wire processing line that is subjected to an intermediate stripping process and a covered wire that is skinned at the main wire processing line (this wire is temporarily referred to as “main wire”). There is known a method of cutting a main line after a joint process is completed by operating a parallel wire processing line for processing a covered electric wire to be joint-processed (this electric wire is temporarily referred to as a "branch wire") and completing a joint process. (See Patent Document 1). If necessary, taping is applied to the joint between the main line and the branch line.
[0004]
The technology for connecting new insulated wires or insulated wires required for the next processing to the insulated wires supplied to the equipment when the insulated wires are continuously supplied to the automatic processing equipment is a technology to connect the insulated wires by taping. Is known (see Patent Document 2).
[0005]
As a technique for storing covered electric wires in the supply process when automatically processing main lines and branch wires, a fixed pulley group rotating at a fixed position and a moving pulley group carrying the covered electric wires between the fixed pulley groups are used. There is known a technique in which a covered wire is stocked so as to be able to be fed out in combination (see Patent Document 3).
[0006]
As a technique for performing an intermediate peeling process on the supplied main line, a technique is used in which a covered portion of the main line is cut at one end side of the peeled area with a pair of cutters, and both cutters are moved in the cut state to expose a core part of the peeled area. Is known (see Patent Document 4).
[0007]
As a technique for feeding and measuring and cutting the covered electric wire, in addition to the technique described in Patent Document 1, a technique for feeding the covered electric wire to an openable and closable electric-wire supply path and measuring a feeding amount may be used. A technique is known in which a covered electric wire is stretched between a pair of clamps, a roller group disposed between the two clamps is relatively displaced, and the stretched covered electric wire is fed, and the amount of feeding is measured. (See Utility Model Publication 1).
[0008]
In addition, as a technique for manufacturing a measuring wire from a covered wire, for example, a method is known in which a terminal crimping device is provided in a cutting / peeling unit and the cutting / peeling process and the crimping process are continuously synchronized (see, for example, Japanese Patent Application Laid-Open No. H11-157572). Patent Document 6). Therefore, when processing a branch wire, it is possible to continuously and automatically produce by connecting a terminal to only one of the measured electric wires.
[0009]
Further, as a technique for winding a tape around a portion subjected to an intermediate joint processing, a technique is known in which a work and a taping device are relatively displaced and a tape is continuously wound around the work (see Patent Document 7).
[0010]
[Patent Document 1]
JP-A-7-85939 (columns 0010 to 0027; see FIGS. 1, 8 and 9).
[Patent Document 2]
JP 2001-52835 A (columns 0001 to 0028; see FIGS. 1 to 8).
[Patent Document 3]
JP-A-8-273454 (columns 0001 to 0032, see FIGS. 1 and 2).
[Patent Document 4]
JP-A-5-250935 (columns 0001 to 0061; see FIGS. 1 to 20).
[Patent Document 5]
JP-A-9-27222 (columns 0001 to 0056, see FIGS. 1 to 8).
[Patent Document 6]
JP-A-2002-110308 (columns 0001 to 0043; see FIGS. 1 to 8).
[Patent Document 7]
JP-A-2002-37539 (columns 0001 to 0085, see FIGS. 1 to 18).
[Utility model publication 1]
Japanese Utility Model Publication No. 4-13610 (columns 1 to 6, see FIGS. 1 to 5).
[0011]
[Problems to be solved by the invention]
In the technique according to Patent Literature 1 described above, a measuring operation is performed before and after a joint process to cut a main line (see FIGS. 8 and 9 of Patent Literature 1).
[0012]
However, in any case, since the joint process and the cutting operation are sequentially performed on the same main line, the tact becomes longer when automation is performed on the main line after cutting, and practical application is difficult. Had become. Further, when the tape winding step is included, the tact becomes longer, so that the tape winding step has to be performed on another line after cutting. Therefore, the work of holding and positioning the wire after cutting is extremely complicated, and automation has been difficult.
[0013]
The present invention has been made in view of the above problems, and a wire harness manufacturing method and a manufacturing apparatus and a joint wire holding unit capable of automatically producing a wire harness requiring an intermediate joint process with as short a tact as possible. The task is to provide.
[0014]
[Means for Solving the Problems]
In order to solve the above problems, the present invention
A main line processing line for stripping the middle part of one covered electric wire, and another covered electric wire whose terminal portion is electrically connected to the stripped portion of the one covered electric wire stripped by the main line processing line In parallel with the branch wire processing line for processing, after the connection step of both coated electric wires is completed, in the method for manufacturing a wire harness including a step of measuring and cutting the one coated electric wire,
A method of manufacturing a wire harness, comprising stocking one covered wire to which the other covered wire is connected, feeding out the one covered wire, measuring and cutting the wire.
[0015]
According to the present invention, after electrically connecting one covered electric wire (main line) and another covered electric wire (branch line), the connected electric wires are stocked, so that the tact time on the upstream side of the connection process is increased. And the tact on the downstream side can be absorbed by the processing time of the stocked covered electric wire. As a result, in the process on the downstream side of the connection process, there is less restriction due to tact on the upstream side of the connection process, and automatic production can be performed at a practical speed. Further, since one covered electric wire is stocked before being cut, even when the stocked covered electric wire is subjected to a post-process, it is not necessary to change the holding and the positioning becomes easy. Therefore, automation becomes easy.
[0016]
Another aspect of the invention is
A stripping unit for stripping the middle part of one covered electric wire,
For the stripped portion of the one covered wire stripped by the stripping unit, a branch wire manufacturing apparatus for processing another covered wire to which an end portion is electrically connected,
A joint crimping unit that electrically connects terminal portions of the other insulated wire processed in the branch wire manufacturing apparatus and the stripped portion of the one insulated wire with terminals.
For the joint crimping unit, conveying means for conveying the other coated electric wire processed in the branch wire manufacturing apparatus,
A measuring and cutting means for measuring and cutting the one covered electric wire to which the other covered electric wire is connected at the terminal;
And a stocking means for stocking the one covered electric wire so as to be able to be fed out between the measuring and cutting means and the crimping unit.
[0017]
Also in the invention in this aspect, after one covered electric wire (main line) and another covered electric wire (branch line) are electrically connected by the joint crimping unit, the connected electric wire is stocked by the stock means so as to be able to be fed out. Thereby, the difference between the tact on the upstream side and the tact on the downstream side of the connection step can be absorbed by the processing time of the covered wire. As a result, in the process on the downstream side of the connection process, there is less restriction due to tact on the upstream side of the connection process, and automatic production can be performed at a practical speed. Further, since one covered electric wire is stocked before being cut, even when the stocked covered electric wire is subjected to a post-process, it is not necessary to change the holding and the positioning becomes easy. Therefore, automation becomes easy.
[0018]
Still another embodiment of the present invention is used in combination with the above-described wire harness manufacturing apparatus, in which a stripped portion is provided in the middle of one covered electric wire, and a terminal portion of another covered electric wire is electrically connected to the stripped portion. A joint wire carrying unit for carrying the joint wire,
A drum body around which the joint wire is wound,
A pair of electric wire clamps fixed to the drum body and clamping both ends of the joint wire wound around the drum body,
Driving means for driving the drum body to rotate;
It is a joint wire carrying unit characterized by having.
[0019]
According to the present invention, a joint wire in which a terminal portion of another covered electric wire is electrically connected to a middle portion of one covered electric wire is manufactured, and the joint wire is wound around the outer periphery of a drum body before being measured and cut. It can be stocked so that it can be extended. As a result, the manufactured joint line can be stocked so as to be able to be unwound before being cut and trimmed, so that the joint line can be easily transferred between the joint line manufacturing line and the manual line. In addition, since the joint lines are stocked so as to be able to be extended, positioning of the extended joint lines and the like are easy, and practical use in a later process is enhanced.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0021]
1 and 2 are process schematic diagrams showing a schematic configuration of a production line of a wire harness according to an embodiment of the present invention.
[0022]
With reference to these figures, in the wire harness manufacturing line according to the present embodiment, a main line processing line L1 for performing a skinning process on an intermediate portion of one covered electric wire (hereinafter, referred to as “main line”) WL, and a main line processing line L1 In order to process another covered electric wire (hereinafter, referred to as a “branch wire”) WB to which the terminal portion is electrically connected to the stripped portion WL1 (refer to FIG. 4B) of the main line WL stripped at step (1). Are operated in parallel with the branch line processing line L2.
[0023]
More specifically, as shown in FIG. 1, a main line processing line L1 includes a main line supply station ST10 that stocks a plurality of types of main lines WL, and an intermediate peeling process on the main line WL supplied from the main line supply station ST10. , A joint crimping station ST12 for electrically connecting the branch line WB to the main line WL subjected to the intermediate stripping process, and a main line connected to the branch line WB (hereinafter, “joint line”). A) a joint line accumulating station ST13 that enables the payout of the WA. Further, on the downstream side of the joint line accumulation station ST13, as shown in FIG. 2, a tape winding station ST14 for taping a connection portion (hereinafter, referred to as a "joint portion") WJ between the main line WL and the branch line WB, It has a joint wire accumulation station ST15 for stocking the tape wound joint wire WA, and a joint wire processing station ST16 for machining the joint wire WA.
[0024]
In the main line supply station ST10 shown in FIG. 1, a known electric wire supply unit 112 that supplies an alternative main line WL from a plurality of reels 111 is arranged, and the main line WL selected from the electric wire supply unit 112 is downstream. Side line.
[0025]
On the downstream side of the electric wire supply unit 112, an electric wire connection unit 120 for connecting another main line WL is provided at the upstream end of the main line WL supplied to the main line processing line L1.
[0026]
3A and 3B are explanatory diagrams schematically showing an outline of the electric wire connection unit 120 according to the embodiment of FIG. 1, wherein FIG. 3A is a schematic side view, FIG. 3B is a schematic front view, and FIG. FIG. 4 is a state diagram showing a connection portion of a main line WL.
[0027]
(A) and (B), the electric wire connection unit 120 draws out the tape 121 with a hand (not shown), cuts the tape 121 with the cutter 122, and connects the two lines WL to be connected on the tape piece T, By rolling the WL and winding the tape piece T, the two lines WL are connected as shown in FIG. 3C. The electric wire connection unit 120 is used when the type of the manufactured wire harness is changed or when it is necessary to replenish the main line WL supplied from the electric wire supply unit 112 from another reel 111 (see FIG. 1). Used. Note that the specific configuration of the wire connection unit 120 is disclosed in Patent Document 2 described in the section of the related art, and thus the detailed description thereof will be omitted.
[0028]
FIGS. 4A and 4B are operation explanatory views showing a schematic configuration of the intermediate peeling unit according to the embodiment of FIG. 1, wherein FIG. 4A shows an initial state and FIG. 4B shows a peeling operation state.
[0029]
Referring to FIG. 1 and FIG. 4, an intermediate stripping unit 140 is provided in the intermediate stripping station ST11. The intermediate peeling unit 140 is driven by a driving unit such as a cylinder 141 to clamp / release the main line WL on a feed path of the main line processing line L1. The clamp 142 is disposed upstream of the clamp 142 and has a V-shape. A pair of cutters 143 having a depressed cutting blade, the innermost portions of the cutting blades being opposed to each other across the feeding path of the main line processing line L1, and a pair of cutters 143 provided for each cutter 143; An air cylinder 144 for driving the cutter 143 corresponding to the direction of approaching / separating from the feeding path of the main line L1, and a driving mechanism (not shown) for reciprocatingly driving each air cylinder 144 along the feeding path of the main line processing line L1. )have. As shown by arrows (1) to (5) in FIG. 4B, the opening and closing timings of the clamp 142 and the cutter 143 are as follows: first, the clamp 142 is closed to fix the main line WL, and then both cutters 143 are closed to set the main line. Make a cut in the coating of the WL. Thereafter, by moving each cutter 143 from the downstream side to the upstream side along the feed path via each air cylinder 144, the cut portion is compressed to the upstream side, and the core portion of the intermediate peeling region is compressed. Is exposed. Thereafter, each cutter 143 is opened, moved back from the upstream side to the downstream side along the above-mentioned feeding path, and returned to the initial state shown in FIG. Since a more specific configuration of the intermediate peeling unit 140 is disclosed in Patent Document 4 described in the section of the related art, the description thereof is omitted.
[0030]
A photoelectric sensor 145 is arranged on the upstream side of the cutter 143 in order to prevent the connection portion of the main line WL from being included in a wire harness to be a product by the electric wire connection unit 120 of the main line supply station ST10 described above. When the photoelectric sensor 145 detects a connection portion of the main line WL (see FIG. 3C), the connection portion is configured not to be included in a product in a processing process after the intermediate peeling unit 140. .
[0031]
Next, referring to FIG. 1, the joint crimping station ST12 includes a stock unit 150 that stocks the main line WL that has undergone the intermediate stripping so that the main line WL can be fed out, and a stripped portion of the main line WL that is fed from the stock unit 150. A joint crimping unit 160 for electrically connecting the terminal portion of the branch line WB by the terminal JT is provided for WL1.
[0032]
The stock unit 150 basically has the same specifications as the stock unit disclosed in Patent Document 3 described in the section of the prior art.
[0033]
The joint crimping unit 160 includes a terminal supply unit 161 for supplying a terminal JT for joining the two lines WL and WB, a terminal press unit 162 for caulking the terminal JT supplied by the terminal supply unit 161, It has a receiving hand 163 that receives the branch line WB supplied to the section 162, and a photoelectric sensor 164 that is arranged upstream of the terminal press section 162 and detects the stripped portion WL1 of the main line WL. An unillustrated feeding mechanism for feeding the main line WL intermittently positions the peeled portion WL1 formed on the main line WL at the press position of the terminal press section 162 based on the detection of the photoelectric sensor 164. Send WL. Then, by crimping the terminal JT by the terminal pressing portion 162, the terminal stripped portion WL1 of the branch line WB is electrically connected to this covered portion.
[0034]
Note that the configurations of the terminal supply unit 161, the terminal press unit 162, and the receiving hand 163 are known configurations that are in principle equivalent to the mechanism disclosed in Patent Document 1 described in the section of the prior art, for example. Therefore, the description of the details is omitted.
[0035]
In the illustrated embodiment, a pair of loose feeders 170 are provided on both sides of the terminal press unit 162 in order to apply an appropriate tension to the main line WL when feeding the stripped portion WL1 of the main line WL to the terminal press unit 162. Have been.
[0036]
The loose feeder 170 has a pair of drive rollers 171 disposed downstream of the terminal press section 162 and a pair of brake rollers 172 disposed upstream of the terminal press section 162.
[0037]
FIG. 5 is a partially broken perspective view showing a schematic configuration of the loose feeder 170 according to the embodiment of FIG.
[0038]
Referring to FIG. 5, the drive roller pair 171 constituting the loose feeder 170 includes a table 171a disposed below the feed path of the main line processing line L1. On the table 171a, a pair of bearing frames 171b opposed to each other with the feed path of the main line processing line L1 interposed therebetween is provided upright. A motor 171c is mounted on one bearing frame 171b, and an end of a drive shaft 171d driven by the motor 171c is supported by the other bearing frame 171b. The drive shaft 171d is disposed below the feed path of the main line processing line L1 so as to be rotatable around a horizontal axis orthogonal to the feed path. A flanged roller 171e that receives the main line WL is fixed to the outer periphery of the drive shaft 171d, and the flanged roller 171e receives the rotational driving force of the motor 171c from the drive shaft 171d and rotates. Next, a rectangular guide groove 171f extending vertically is formed in each bearing frame 171d, and an elevating bearing 171g that can move up and down along the guide groove 171f is arranged in each guide groove 171f. I have. The two lifting bearings 171g support a driven shaft 171h extending in parallel with the drive shaft 171d. A driven roller 171i that sandwiches the main line WL on the feed path of the main line processing line L1 with the above-described flanged roller 171e is fixed to the driven shaft 171h. In the illustrated embodiment, the outer periphery of the driven roller 171i is formed of an elastic material such as urethane rubber. Further, a coil spring 171j is contracted between each lifting bearing 171g and the upper surface of the guide groove 171f. Due to the urging force of the coil spring 171j, the driven roller 171i elastically sandwiches the main line WL with the flanged roller 171e via the lifting bearing 171g and the driven shaft 171h. Therefore, the main line WL is fed below the feed path of the main line processing line L1 by receiving the rotational driving force of the roller with flange 171e.
[0039]
On the other hand, the brake roller pair 172 basically has the same configuration as the drive roller pair 171 and sandwiches the main line WL so that the main line WL can be fed. However, in the brake roller pair 172, an axis brake for braking a member corresponding to the drive shaft 171d is provided instead of the motor 171c shown in FIG. As a result, the main line WL on the feed path of the main line processing line L1 is driven by the drive roller pair 171 while being braked by the brake roller pair 172. As a result, a relatively light tension is applied between the two roller pairs 171 and 172. Can be operated. As a result, the stripped portion WL1 of the main line WL can be positioned at the press position of the joint crimping unit 160 with high accuracy. Further, in the present embodiment, since the outer periphery of the driven roller 171i is formed of an elastic material, even when the main line WL to which the branch line WB is connected (that is, the joint line WA) is fed, the terminal after pressing is pressed. JT can smoothly feed the caulked part.
[0040]
Next, the branch line processing line L2 for manufacturing the branch line WB supplied to the joint crimping station ST12 will be described.
[0041]
As shown in FIG. 1, the branch line processing line L2 is a branch line supply station ST20 stocking a plurality of types of branch lines WB, and the branch line WB supplied from the branch line supply station ST20 is cut and scaled. And an A-end crimping station ST21 for crimping the crimp terminal Ta to one end portion.
[0042]
The branch supply station ST20 is provided with an electric wire supply unit 212 and an electric wire connection unit 220 having a plurality of reels 211 similarly to the main line supply station ST10.
[0043]
In the A-end crimping station ST21, the branch line WB fed out from the electric wire supply unit 212 is cut and scaled, and a terminal is connected to one end of the cut branch line WB (tentatively referred to as “A end”). A branch wire manufacturing device 230 for crimping Ta is provided.
[0044]
The branch line manufacturing apparatus 230 includes a stock unit 235 that stocks the branch line WB fed from the wire supply unit 212 so as to be able to be fed, a feed unit 240 that feeds the branch line WB fed from the stock unit 235, A processing section 250 for processing the branch line WB fed from the feeding section 240;
[0045]
Like the stock unit 150, the stock unit 235 has basically the same specifications as the stock unit disclosed in Patent Document 3 described in the section of the prior art.
[0046]
FIG. 6 is a schematic plan view illustrating a schematic configuration of the branch line manufacturing apparatus 230 according to the embodiment of FIG.
[0047]
With reference to the figure, the feeding unit 240 includes a sizing feeder 241 for the branch line WB, a straightener 242 for correcting the bending of the branch WB sent from the sizing feeder 241, and a straightener 242. Rollers 243 and 244 for sending out the branch lines WB that have passed therethrough, and a stock unit 245 for storing the branch lines WB fed out to the send-out rollers 243 and 244 and adjusting the sending amount. The feed amount is controlled by a rotary encoder disposed at an appropriate position in the route.
[0048]
On the other hand, the processing unit 250 has a pressing device 251 arranged on one side (the right side in FIG. 6) of the electric wire feeding line PH defined linearly on a horizontal plane, and a feeding device along the electric wire feeding line PH. A pair of feed rollers 252 for feeding the branch line WB in the feeding direction D from the stock portion 245 of the section 240, and cutting / peeling for cutting / peeling the branch line WB fed from the feed roller 252. Unit 253, a moving clamp device 254 arranged upstream of the cutting / stripping unit 253 of the electric wire supply line PH, and the cutting / scalping unit 253 is cut in cooperation with the moving clamp device 254. And an index table 255 for processing the branched line WB.
[0049]
The press device 251 includes a terminal crimping unit 251a for crimping the terminal Ta to the A end of the branch wire WB cut / stripped by the cutting / stripping unit 253.
[0050]
The feed roller 252 feeds an electric wire in the electric wire feeding direction D at a predetermined timing by a length measured by a rotary encoder (not shown) of the feed unit 240.
[0051]
The cutting / peeling unit 253 is for driving the cutter group 256a carried by the pair of cutter holders 256 to cut / peel the fed branch line WB on the electric wire feeding line PH. is there.
[0052]
The moving clamp device 254 is provided at a free end of a rotating arm 254b that rotates around a rotating shaft 254a parallel to the electric wire feeding line PH by being driven by a well-known driving mechanism (not shown). And a clamp 254c with a nozzle for clamping the branch line WB. Then, by the drive mechanism (not shown), the clamp with nozzle 254c is rotated in a plane orthogonal to the electric wire feed line PH to stop the peeling end on the A-end side (the virtual posture in FIG. 2). And a feed-side posture (represented by a solid line in FIG. 2) in which the branch wire WB to which the terminal Ta is crimped is returned from the terminal crimping unit 251a of the pressing device 251 on the A-end side into the electric wire feeding line PH. (Posture) and the branch line WB are moved.
[0053]
The index table 255 is a disk-shaped member that rotates intermittently in a plane perpendicular to the electric wire feeding line PH, and has a clamp 255a protruding in the radial direction on the outer peripheral portion. By rotating the index table 255 intermittently around its axis 255b in conjunction with the moving clamp device 254, each clamp 255a faces the wire feed line PH, and the wire feed line This is for clamping the branch line WB on the PH, processing the branch line WB formed downstream of the cutting / peeling unit 253, and carrying out the crimped branch line WB to the transport side.
[0054]
Next, a description will be given of a transport unit 270 as a transport unit that supplies the branch line WB carried out to the transport side to the terminal press unit 162 of the joint crimp unit 160 provided in the joint crimp station ST12.
[0055]
FIG. 7 is a perspective view schematically showing a main part of the transport unit 270 according to the embodiment of FIG. 8 and 9 are schematic front views showing the operation of the transport unit 270.
[0056]
First, referring to FIG. 6 and FIGS. 7 and 8, the joint crimping unit 160 is arranged on the side of the index table 255 of the branch line manufacturing device 230. The transport unit 270 in the present embodiment includes an unloading-side hand unit 271 and a supply-side hand unit 272 arranged between the joint crimping unit 160 and the branch line manufacturing device 230.
[0057]
The unloading hand unit 271 includes a shaft 271a parallel to the shaft 255b of the index table 255, a swing arm 271b having a base end fixed to the shaft 271a and swinging bidirectionally around the shaft 271a. And a branch line clamp 271c provided at a free end of the moving arm 271b. In order to carry out the branch line WB via the branch line clamp 271c by displacing the swing arm 271b between the receiving position shown in FIG. 8 and the delivery position shown in FIG. 9 by a drive mechanism (not shown). belongs to.
[0058]
Referring to FIG. 7, a branch wire clamp 271c provided at the end of the swing arm 271b is provided with a pair of clamp pieces 271d formed in a substantially yoke shape and a connecting shaft for connecting the respective clamp pieces 271d to be openable and closable. 271e, and an actuator (not shown) built in the swing arm 271b around the connection shaft 271e so as to open and close each clamp piece 271d. When the swing arm 271b is in the receiving position, the clamp 255a of the index table 255 at the position where the branch line WB is carried out is inserted into the recess 271f formed by the clamp piece 271d. The gripped branch line WB can be clamped. Further, when the swing arm 271b is displaced to the delivery position in a state where the branch line WB is clamped, the gripped branch line WB can be supplied to the supply side hand unit 272 at this delivery position.
[0059]
8 and 9, supply side hand unit 272 includes a receiving hand 272a similar in principle to branch line clamp 271c shown in FIG. 7, and an arm 272b carrying this receiving hand 272a. An elevating cylinder 272c for vertically moving the receiving hand 272a through the arm 272b, and an actuator 272d for horizontally transporting the receiving hand 272a via the elevating cylinder 272c. The receiving hand 272a, like the clamp 255a of the index table 255, can enter the clamp 255a into the concave portion 271f formed by the clamp piece 271d to clamp the branch line WB held by the clamp piece 271d. It is configured as follows. As a result, as shown by arrows {1} and {circle around (2)} in FIG. 9, the branch line gripped by the clamp piece 271c of the unloading side hand unit 271 at the delivery position with the receiving hand 272a by the lifting cylinder 272c and the actuator 272d. The WB is conveyed to a position where it can be clamped, and the receiving hand 272a is closed in the closed state shown by the solid line as shown by the arrow (3), and the branch line WB is gripped, as shown by the arrows (4) and (5). The clamp piece 271c is opened and retracted to the receiving position (see FIG. 8). Thereafter, as shown by an arrow (6), the receiving hand 272a is transported to the terminal press section 162 of the joint crimping unit 160 by the actuator 272d. 163.
[0060]
Next, a configuration for processing the main line WL to which the branch line WB is connected by the joint crimping unit 160 (that is, the joint line WA) will be described.
[0061]
FIG. 10 is a perspective view showing a schematic configuration of the stock unit 300 according to the embodiment of FIG.
[0062]
Referring to FIG. 1 and FIG. 1, the joint line WA is sent to the joint line accumulation station ST13. The stock unit 300 is arranged at the joint line accumulation station ST13, and the main line WL to which the branch line WB is connected is stocked so as to be able to be fed to a downstream supply line.
[0063]
FIG. 10 is a perspective view showing a schematic configuration of the stock unit 300 according to the embodiment of FIG.
[0064]
Referring to FIG. 5, stock unit 300 is configured in a housing structure having a rectangular base 301 and pillars 302 erected at four corners of base 301. Beams 303 and 304 are fixed between the tops of the pillars 302 and 302 facing each other along the longitudinal direction of the base 301, respectively.
[0065]
On one beam 303 of the stock unit 300, a fixed position roller 305 for introducing the joint line WA sent to the joint line accumulation station ST13, and a fixed position roller for unloading the joint line WA from the stock unit 300. 306 are provided on both sides, respectively, and are rotatably mounted. Further, a plurality of (three in the illustrated example) intermediate fixed position rollers 307 for feeding the joint line WA in cooperation with the fixed position rollers 305 and 306 are rotatably attached to the other beam 304. Further, a guide channel 308 is provided between the intermediate fixed position rollers 307 and 307 so as to extend in a posture orthogonal to the beams 303 and 304 and to be integrated with the beams 303 and 304. The guide channel 308 has a guide groove 308a that opens downward, and a slider 308b that is supported along the guide groove 308a so as to be able to reciprocate in a horizontal direction perpendicular to each beam 303. A movable roller 309 is rotatably attached to each slider 308b. Further, the slider 308b is connected to a weight 308d via a wire 308c. The weight 308d is hung below the one beam 303, and urges the movable roller 309 in a direction away from the intermediate fixed position roller 307 via the slider 308b by its support. In this state, the joint line WA is introduced from the introduction fixed position roller 305 into the stock unit 300, and is alternately stretched over the intermediate fixed position roller 307 and the movable roller 309. It is carried out downstream via 306. Here, the axis of each of the rollers 305, 306, 307, and 309 is set around the vertical line. As a result, the branch line WB constituting the joint line WA is kept hanging downward around the outer periphery of each of the rollers 305, 306, 307, 309. There is no danger of entanglement.
[0066]
Further, a pair of rollers 310 are arranged on the upstream side and the downstream side of the stock unit 300, respectively. Each roller pair 310 is for adjusting the tension of the joint line WA passing through the stock unit 300, and its specific configuration is equivalent to the above-described brake roller pair 172 of the loose feeder 170. By providing these roller pairs 310, 310, the tension of the joint line WA in the stock unit 300 is reduced by the braking force on the joint line WA set for each roller pair 310, 310 and the tension of the movable roller 309 by the weight 308d. It will be set where the power and the balance are. Therefore, the consumption of the joint line WA on the downstream side of the stock unit 300 is accelerated, and when the joint line WA in the stock unit 300 is extended with a stronger force than a preset tension, the movable roller 309 is And the weight is displaced in the direction approaching the intermediate fixed position roller 307 against the weight of the weight, and the extension amount of the joint line WA can be increased. On the other hand, when the tension of the joint line WA in the stock unit 300 is lower than the tension set for each roller pair 310, 310, the movable roller 309 is separated from the intermediate fixed position roller 307 by the weight of the weight 308d. Direction. As a result, the wire route in the stock unit 300 becomes longer, and the joint wire WA is stored in the stock unit 300 accordingly. In the present embodiment, by providing the stock unit 300, it becomes possible to stock the joint line WA before the measuring / cutting and process it in a subsequent process.
[0067]
Next, the steps or configuration on the downstream side of the joint line accumulation station ST13 will be described.
[0068]
FIG. 11 is a schematic plan view showing a schematic configuration of the taping unit 330 provided in the tape winding station ST14 shown in FIG.
[0069]
Referring to FIG. 2 and FIG. 2, a tape winding station ST14 is provided downstream of the joint line accumulation station ST13. The tape winding station ST14 includes a taping unit 330, a photoelectric sensor 340 that is disposed upstream of the taping unit 330, and detects a joint portion WJ to be subjected to taping by the taping unit 330. A measuring roller 350 for measuring the feed length and taping length of the joint line WA based on the detection of 340; a guide unit 360 for guiding the joint line WA measured by the measuring roller 350; An electric wire clamp unit 370 for feeding the joint line WA based on the measurement of the measuring roller 350 and a brake roller pair 380 for applying back tension to the joint line WA at the time of measuring by the measuring roller 350 are included. Are located. In the tape winding station ST14, the tape is automatically wound around the joint portion WJ of the joint line WA by these units 330 to 370.
[0070]
The taping unit 330 includes a guide rail 331 extending in a horizontal direction orthogonal to a feed path of the joint line WA, and a slider 332 provided on the guide rail 331 and capable of reciprocating along the longitudinal direction of the guide rail 331. By driving the taping drum unit 333 mounted on the slider 332 and the slider 332 along the guide rail 331, the taping drum unit 333 is moved to a taping position for taping the joint line WA, and the feed of the joint line WA is performed. And an air cylinder 334 that is displaced between a retracted position and a retracted position for retracting.
[0071]
The taping drum unit 333 includes a housing 333a, a drum body 333b rotatably supported by the housing 333a, a tape piece supply unit 333c that supplies a tape piece to the drum body 333b, and a tape piece supply unit. A motor 333d that drives the drum body 333b in conjunction with the 333c at a predetermined timing. More specifically, similar to the configuration disclosed in Patent Literature 7 described in the section of the related art, a joint serving as a work is provided. The configuration is such that the line WA and the taping drum unit 333 are relatively displaced, and the joint portion WJ can be taped.
[0072]
Here, in the present embodiment, the joint portion WJ of the joint line WA is detected by the photoelectric sensor 340 disposed at the upstream end of the tape winding station ST14, and the measuring roller 350, the guide unit 360, and the clamp unit 370 described below. A configuration is employed for accurately transferring the joint portion WJ to the tape winding position by the taping unit 330.
[0073]
12 and 13 are perspective views schematically showing the main part of the tape winding station ST14.
[0074]
Referring to these drawings and FIG. 2, the measuring roller 350 is provided on a pair of rollers 351 and 352 disposed between the photoelectric sensor 340 and the taping unit 330, and on one roller 351. And a pair of rollers 351 and 352 sandwich the conveyance path of the joint line WA, thereby feeding the joint line WA to the downstream side while reducing the feed amount by the rotary encoder 353. It is configured to be able to measure length. The rollers 351 and 352 are moved between a feed position (position shown in FIG. 12) sandwiching the joint line WA by a drive mechanism (not shown) and a release position (position shown in FIG. 13) for releasing the joint line WA. It is configured to be displaceable. In the present embodiment, since each roller pair 351 and 352 of the measuring roller 350 is configured by a horizontal roller that rotates around a vertical line, the branch line WB hanging from the joint portion WJ of the joint line WA is entangled. Without passing through it.
[0075]
The guide unit 360 is disposed between the measuring roller 350 and the photoelectric sensor 340 as a whole, formed in a semi-cylindrical shape, and a pair of guide pieces 361 and 362 opposed to each other across the conveyance path of the joint line WA. And a connecting gear mechanism 363 connecting the two guide pieces 361 and 362 so that the two guide pieces 361 and 362 open and close the joint line WA in conjunction with each other, and are attached to the connecting gear mechanism 363 and the two guide pieces 361 and 362 And an air cylinder 364 for driving the motor. Based on the fact that the photoelectric sensor 340 has detected the joint portion WJ, the air cylinder 364 has a feed position (a position shown in FIG. 12) for guiding the joint line WA and a release position (the position for releasing the joint line WA). (The position shown in FIG. 13). The coupling gear mechanism 363 includes a pinion gear 363a disposed above the feed path of the joint line WA by a frame (not shown), and a rack gear 363b that meshes with the pinion gear 363a in a 180 ° out of phase posture. 363c, a stay member 363d for integrating one rack gear 363b with one guide piece 361, and a stay member 363e for integrating the other rack gear 363c with the other guide piece 362. The opening and closing operation described above can be performed.
[0076]
Referring to FIG. 11, the clamp unit 370 opens and closes a pair of clamp pieces 371 with an opening / closing mechanism (not shown), thereby clamping the joint line WA on the transport path and releasing the clamp. A standby position (solid line in FIG. 11) in which the clamp piece 371 is configured to be displaceable between the open position and the open position and the clamp piece 371 is located upstream of the taping unit 330 in a state where the opening and closing operations of the two clamp pieces 371 are allowed. ) And a rewinding position (a position indicated by a virtual line in FIG. 11) on the downstream side.
[0077]
The brake roller pair 380 has the same specifications as the brake roller pair 172 of the loose feeder 170 described in FIGS. 1 and 5 in principle.
[0078]
In the tape winding station ST14, in the initial state, the taping unit 330 takes the standby position, the measuring roller 350 and the guide unit 360 take the feed position, and the clamp unit 370 takes the release position to release the clamp at the standby position. I have. When the apparatus is operated, the measuring roller 350 starts measuring the joint line WA fed out from the stock unit 300 of the joint line accumulation station ST13. At this time, since a predetermined tension acts on the joint line WA between the brake roller pair 380 and the scale roller 350 by the brake roller pair 380 arranged on the upstream side of the scale roller 350, the joint The line WA will be measured accurately. In this state, when the photoelectric sensor 340 detects the joint portion WJ of the joint line WA (in the case indicated by (1) in FIG. 11), the joint line WA is held between the measuring roller 350 and the clamp unit 370. 13 (states shown by arrows 2 in FIG. 11 and FIG. 13), and then the clamp unit 370 moves the two clamp pieces 371 forward (the operation shown by arrow 3 in FIG. 11). As shown, the joint portion of the joint line WA is transported to a position where taping can be performed by the taping unit 330. Thereafter, the measuring roller 350 and the clamp unit 370 are respectively closed to guide / measure the joint line WA again, and the clamp piece 371 of the clamp unit 370 is further moved forward by a predetermined taping length Lt to perform a taping operation. (Operations indicated by arrows (4) to (5) in FIG. 11). The taping length Lt may be 0 mm depending on the product. After the taping is completed, each part returns to the initial state (operation indicated by arrow {circle around (7)} in FIG. 11).
[0079]
Referring to FIG. 2, in the present embodiment, after the taping processing at the tape winding station ST14 is completed, the joint line WA is introduced into the downstream joint line accumulation station ST15 and is stocked. At the joint line accumulation station ST15, a stock unit 390 having the same configuration as the stock unit 300 described above is arranged. Then, the joint line WA drawn out from the joint line accumulation station ST15 is drawn out to a joint line processing station ST16, where it is processed as an element part of a wire harness.
[0080]
FIG. 14 is a schematic plan view of the joint line processing station ST16 of FIG.
[0081]
Referring to the figure, in joint line processing station ST16, a scale cutting unit 400 for measuring and cutting joint line WA, and a terminal for performing terminal processing of joint line WA scaled by this scale cutting unit 400. And a processing line L3.
[0082]
The measuring and cutting unit 400 includes a photoelectric sensor 410 for detecting a joint portion WJ of the joint line WA, a measuring roller 420 for measuring the joint line WA based on a detection position of the photoelectric sensor 410, A guide unit 430 that guides a joint line WA measured by the roller 420, a cutter unit 440 that cuts the joint line WA based on the measurement value of the measuring roller 420, and a joint that is cut by the cutter unit 440. The transfer robot 450 includes a transfer robot 450 that transfers the line WA to the terminal processing line L3, and an electric wire guide unit 460 that feeds out the joint line WA gripped by the transfer robot 450 before cutting.
[0083]
The photoelectric sensor 410, the measuring roller 420, and the guide unit 430 have the same configuration or function as the photoelectric sensor 340, the measuring roller 350, and the guide unit 360 employed in the tape winding station ST14 in principle. It is. In the illustrated embodiment, a direction in which the nips N1 and N2 of the measuring roller 420 and the guide unit 430 are arranged in this order is temporarily referred to as a front direction Fd, and a direction opposite to the front direction is referred to as a rear direction Bd.
[0084]
The cutter unit 440 has a pair of cutting blades 441 that are simultaneously driven by a drive mechanism (not shown), and feeds the joint line WA based on the detection information of the photoelectric sensor 410 and the measurement value of the measuring roller 420. It is configured to be displaceable between a release position for releasing the path and a cutting position for cutting the joint line WA on the feed path.
[0085]
The transfer robot 450 includes two pairs of clamp pieces 451 and 452 that can clamp both ends of the joint line WA cut and cut, and an opening and closing drive mechanism that individually drives the respective clamp pieces 451 and 452 to open and close. (Not shown), a receiving position (a position shown by a solid line in FIG. 14) through which the clamp pieces 451 and 452 grip the cut joint line WA via the opening / closing drive mechanism, and the received joint line WA. It has a transfer mechanism (not shown) that relatively displaces between a transfer position (a position indicated by a virtual line in FIG. 14) for transferring to the processing line L3. Since the configuration itself of the transport mechanism can be easily implemented by a known transport robot unit, the description thereof will be omitted. However, the operation procedure of the clamp pieces 451 and 452 conveyed by this conveyance mechanism is related to the clamp operation of the joint line WA and the scale operation / cutting operation. The configuration will be described together with the configuration of the wire guide unit 460 to be performed.
[0086]
FIG. 15 is a perspective view showing a schematic configuration of the electric wire guide unit 460 according to the embodiment of FIG.
[0087]
Referring to FIG. 14 and FIG. 14, the electric wire guide unit 460 includes a guide plate 461 for guiding the joint line WA sent after the measurement in a substantially U-shape along an inverted path around a vertical line, and a guide plate. 461, a concave portion 462 having a substantially semicircular shape in plan view that forms the reversing path, and an outer peripheral surface formed detachably with respect to the concave portion 462, and sends the joint line WA in the reversing path to the downstream side. And a feed roller 463.
[0088]
The guide plate 461 is levitated by a structure (not shown), and is configured to be movable in both directions of the front direction Fd and the rear direction Bd.
[0089]
When the clamps 451 and 452 are in the receiving position so that the joint line WA sent to the clamps 451 and 452 (see FIG. 14) of the transfer robot 450 is delivered, Specifications such as the diameter and direction of the concave portion 462 are set so that the joint line WA can be clamped at each clamp position.
[0090]
FIG. 16 is a schematic sectional view showing a main part of the electric wire guide unit 460.
[0091]
As shown in the drawing, in the illustrated embodiment, the contour shape of the concave portion 462 has a guide groove portion 462a for guiding the joint line WA between the outer peripheral surface of the feed roller 463 and a guide groove portion 462a. A plurality of relief grooves 462b are provided continuously below the 462a to avoid interference with the joint portion WJ and the branch line WB.
[0092]
Referring to FIGS. 15 and 16, a feed roller 463 is supported integrally with or relatively to the guide plate 461 so as to be movable in both the front direction Fd and the rear direction Bd, and extends vertically. 463a, a bearing 463b having an inner ring attached to the lower end of the attachment shaft 463a, a guide roller 463c attached to the outer ring of the bearing 463b so as to be concentric with the attachment shaft 463a and relatively rotatable, and a guide roller 463c. A release position (position shown in FIG. 15A) for releasing the joint line WA by separating from the concave portion 462 and a guide position for guiding the joint line WA by the guide roller 463c entering the concave portion 462 (FIG. B) between the guide roller 463c and the guide plate 46. And a detaching mechanism for detaching and. The guide roller 463c sandwiching the joint line WA with the recess 462 at the guide position rotates relatively to the fixed shaft 463a by the action of the bearing 463b, so that the joint line WA smoothly moves. This is reversed from the front direction Fd to the rear direction Bd.
[0093]
17 and 18 are schematic plan views showing the operation procedure of the above-described measuring and cutting unit 400.
[0094]
First, referring to FIG. 17 (A), when performing the measuring operation or the cutting operation of the joint line WA by using the electric wire guide unit 460 together, first, the terminal of the joint line WA is connected by the cutter unit 440. The joint wire WA is transferred from one clamp piece 451 to the other clamp piece 452 via the wire guide unit 460 after trimming. Next, by closing the other clamp piece 452, the end of the joint wire WA is regulated by the wire guide unit 460.
[0095]
In this state, as shown in FIG. 17B, when the guide plate 461 and the feed roller 463 of the electric wire guide unit 460 are driven in the forward direction Fd, the joint line WA is extended in the forward direction Fd. The scale will advance. At this time, when the joint portion WJ passes through the measuring roller 420 and the guide unit 430, the measuring roller 420 and the guide unit 430 are opened and the interference with the joint portion WJ is made, as in the case of FIG. Is avoided. Further, as shown in FIG. 16, since the outer peripheral portion of the feed roller 463 is configured to be rotatable relative to the mounting shaft 463a, in the illustrated embodiment, the feed roller 463 and the guide plate 461 are provided. Is pulled out in the rearward direction Bd without slipping.
[0096]
Referring to FIG. 18A, when the feeding is completed, one clamp piece 451 of the transfer robot 450 is also closed to hold the joint line WA to be cut, and after the holding, the cutter unit 440 is driven to connect the joint line WA. The line WA is minimized. After the cutting, as shown in FIG. 18B, the guide plate 461 and the feed roller 463 are relatively opened to release the joint line WA. As a result, the adjusted joint line WA is transported to the terminal processing line L3 by the two clamp pieces 451 and 452 of the transport robot 450.
[0097]
FIG. 19 is a schematic plan view of the terminal processing line L3.
[0098]
As shown in the figure, a transfer conveyor 500 is provided in the terminal processing line L3 to hold both ends of the joint line WA and intermittently transfer the joint line WA from the upstream station ST40 to the downstream station ST44. Have been. On the other hand, a stripping station ST41 for stripping the terminal of the joint wire WA, a crimping station ST42 for crimping the terminals AT and BT to the terminal of the stripped joint wire WA, and an inspection station for inspecting the crimped terminals AT and BT. Corresponding units 510 to 540 are provided in ST43 and the unloading station ST44 for unloading the joint wire WA after the inspection. Each time the joint line WA intermittently conveyed by the conveyer 500 stops, each of the units 510 to 540 operates, and the terminal portion of the joint line WA is stripped and crimped in the same manner as in a known technique. , Inspection and unloading are performed. Thereby, the joint wire WA is automatically produced as a sub-assembly of the wire harness shown in FIG.
[0099]
As described above, according to the present embodiment, after the main line WL as one covered electric wire and the branch line WB as another covered electric wire are electrically connected at the joint crimping station ST12, the connected joint is connected. By storing the line WA at the joint line accumulation station ST13, the difference between the tact on the upstream side and the tact on the downstream side in the connection process can be absorbed by the processing time of the stored joint line WA. As a result, in the process on the downstream side of the connection process, there is less restriction due to tact on the upstream side of the connection process, and automatic production can be performed at a practical speed. Further, since the main line WL is stocked before being cut, even when a post-process is performed on the stocked insulated wire, it is not necessary to change the holding and the positioning becomes easy. Therefore, automation becomes easy.
[0100]
As described above, according to the present embodiment, there is a remarkable effect that the wire harness requiring the intermediate joint process can be automatically produced with as short a tact as possible.
[0101]
The above embodiments are merely specific examples of the present invention, and the present invention is not limited to the above embodiments.
[0102]
For example, depending on the type of the wire harness to be manufactured, the wire harness may be processed off-line after finishing the taping step in the tape winding station ST14.
[0103]
FIG. 20 is a process schematic diagram showing an offline process from the tape winding station ST14.
[0104]
Referring to the figure, in this off-line process, after the taping-processed joint line WA is stocked at the joint line accumulation station ST30, the joint line WA is fed to the joint line processing station ST31 for processing, and finally the terminal line is processed. And a joint wire WA as a sub-assembly of a wire harness having terminals AT, BT, and JT.
[0105]
The joint line accumulation station ST30 is provided with a joint line holding unit 500, and the joint line WA is stocked in the joint line holding unit 500.
[0106]
The joint wire holding unit 500 includes a base 501, a rotating shaft 502 erected on the base 501, a drum 503 fixed to the outer periphery of the rotating shaft 502, and rotationally drives the drum 503 via the rotating shaft 502. And a motor 504 that performs the operation.
[0107]
The base 501 is a box member having a substantially elliptical shape in plan view, and has a built-in power transmission mechanism for transmitting the driving force of the motor 504 to the rotating shaft 502.
[0108]
The rotation shaft 502 has a base end portion attached to a base 501 so as to be rotatable around a vertical line via a bearing (not shown). The lower end is connected to the power transmission mechanism.
[0109]
The drum body 503 has specifications that can be carried in a state where a joint wire WA having a preset length is wound. A pair of electric wire clamps 503a protrude from both sides of the drum body 503 in the axial direction so that one end and the other end of the joint wire WA wound around the drum body 503 can be clamped. .
[0110]
The motor 504 is operated by an operation panel (not shown), and its driving force is transmitted to the rotating shaft 502 via the power transmission mechanism.
[0111]
In this joint wire holding unit 500, one end of the joint wire WA is clamped by one clamp 503a, and the motor 504 is operated to rotate the drum body 503. Thereby, the joint line WA is wound around the outer periphery of the drum body 503. The end of the wound joint line WA is clamped by the other clamp 503a, so that the entire joint line WA is supported on the outer periphery of the drum body 503 without being separated.
[0112]
Further, in this off-line process, the joint wire WA stocked in the joint wire carrying unit 500 is processed by the known processing device 600 installed in the joint wire processing station ST31, so that the wire harness is formed in the same manner as the configuration of FIG. It becomes possible to manufacture the joint wire WA as a sub-assembly.
[0113]
In the embodiment shown in FIG. 20, a joint line WA is manufactured in which a terminal portion of a branch line WB is electrically connected in the middle of the main line WL, and the drum body 503 is cut before the joint line WA is measured and cut. It can be wound around the outer periphery of the container and stocked so that it can be fed out. As a result, the manufactured joint line WA can be stocked so as to be able to be unwound before being cut and scaled. The transfer of the joint line WA is facilitated. Further, since the joint line WA is stocked so as to be able to be extended, positioning of the extended joint line WA becomes easy, and practical use in a later process is enhanced.
[0114]
It goes without saying that various changes can be made within the scope of the claims of the present invention.
[0115]
【The invention's effect】
As described above, according to the present invention, there is a remarkable effect that a wire harness requiring an intermediate joint process can be automatically produced with as short a tact as possible.
[Brief description of the drawings]
FIG. 1 is a schematic process diagram illustrating a schematic configuration of a production line of a wire harness according to an embodiment of the present invention.
FIG. 2 is a schematic process diagram illustrating a schematic configuration of a production line for a wire harness according to an embodiment of the present invention.
3A and 3B are explanatory views schematically showing an outline of the electric wire connection unit according to the embodiment of FIG. 1, wherein FIG. 3A is a schematic side view, FIG. 3B is a schematic front view, and FIG. FIG. 4 is a state diagram showing a connection portion of WL.
FIGS. 4A and 4B are operation explanatory diagrams showing a schematic configuration of an intermediate peeling unit according to the embodiment of FIG. 1, wherein FIG. 4A shows an initial state and FIG.
FIG. 5 is a partially cutaway perspective view showing a schematic configuration of a loose feeder according to the embodiment of FIG. 1;
FIG. 6 is a schematic plan view illustrating a schematic configuration of a branch line manufacturing apparatus according to the embodiment of FIG. 1;
FIG. 7 is a simplified perspective view showing a main part of the transport unit according to the embodiment of FIG. 1;
FIG. 8 is a schematic front view showing the operation of the transport unit.
FIG. 9 is a schematic front view showing the operation of the transport unit.
FIG. 10 is a perspective view illustrating a schematic configuration of a stock unit according to the embodiment of FIG. 1;
11 is a schematic plan view showing a schematic configuration of a taping unit provided in the tape winding station shown in FIG. 2;
FIG. 12 is a perspective view schematically showing a main part of the tape winding station.
FIG. 13 is a perspective view schematically showing a main part of the tape winding station.
FIG. 14 is a schematic plan view of the joint line processing station of FIG. 2;
FIG. 15 is a perspective view showing a schematic configuration of an electric wire guide unit according to the embodiment of FIG. 2;
FIG. 16 is a schematic sectional view showing a main part of the electric wire guide unit.
FIG. 17 is a schematic plan view showing an operation procedure of the measuring and cutting unit.
FIG. 18 is a schematic plan view showing an operation procedure of the measuring and cutting unit.
FIG. 19 is a schematic plan view of a terminal processing line.
FIG. 20 is a process schematic diagram showing an off-line process from a tape winding station.
[Explanation of symbols]
140 Intermediate peeling unit
160 Joint crimping unit
170 Loose Feeder
230 Branch line manufacturing equipment
270 Transport unit (an example of transport means)
300 stock units
330 Taping Unit
400 Scale cutting unit (one example of scale cutting means)
500 Joint wire carrying unit
503 drum body
503a, 503b Clamp
504 motor (an example of driving means)
L1 main line processing line
L2 branch line processing line
L3 terminal processing line
ST10 Main line supply station
ST11 Intermediate peeling station
ST12 Joint crimping station
ST13 Joint line accumulation station
ST14 Tape winding station
ST15 Joint line accumulation station
ST16 Joint wire processing station
ST20 Branch line supply station
ST21 A-end crimping station
ST30 Joint line accumulation station
ST31 Joint wire processing station
WA joint wire
WB branch line
WJ joint part
WL main line
WL1 stripped part

Claims (3)

A main line processing line for stripping the middle part of one covered electric wire, and another covered electric wire whose terminal portion is electrically connected to the stripped portion of the one covered electric wire stripped by the main line processing line In parallel with the branch wire processing line for processing, after the connection step of both coated electric wires is completed, in the method for manufacturing a wire harness including a step of measuring and cutting the one coated electric wire,
A method for manufacturing a wire harness, comprising: stocking one covered electric wire to which the other covered electric wire is connected, feeding out the one covered electric wire, measuring, and cutting. A stripping unit for stripping the middle part of one covered electric wire,
For the stripped portion of the one covered wire stripped by the stripping unit, a branch wire manufacturing apparatus for processing another covered wire to which an end portion is electrically connected,
A joint crimping unit that electrically connects terminal portions of the other insulated wire processed in the branch wire manufacturing apparatus and the stripped portion of the one insulated wire with terminals.
For the joint crimping unit, conveying means for conveying the other coated electric wire processed in the branch wire manufacturing apparatus,
A scale cutting means for measuring and cutting the one covered wire to which the other covered wire is connected at the terminal, and the one covered wire between the scale cutting means and the crimping unit. An apparatus for manufacturing a wire harness, wherein a stock means for stocking the wire harness is provided. A stripped portion is provided in the middle of one covered electric wire, and the stripped portion carries a joint wire that electrically connects a terminal portion of another covered electric wire to the wire harness manufacturing apparatus according to claim 2. A joint wire carrying unit for
A drum body around which the joint wire is wound,
A pair of electric wire clamps fixed to the drum body and clamping both ends of the joint wire wound around the drum body,
And a driving means for driving the drum body to rotate.

Images