JPH0244672A - Error treating method for harness manufacturing device - Google Patents

Abstract

PURPOSE:To reduce shutdown frequency of the device and improve operation rate thereof by continuing manufacture for a plurality of cycles in case where the detected error does not require momentary shutdown and shutting down the device for the first time when the error is not eliminated during the continued manufacture. CONSTITUTION:When a terminal 411 to be press-bonded is not supplied to the position directly under the pressing plate 413, the pressing plate 413 oscillates downward about a blanket 414 as the center to switch a limit switch 412, and it is detected that the stock of the terminal 411 to be press-bonded is only the terminal 411 existing between the pressing plate 413 and a clipper 405. When 'terminal exhaustion' is detected by terminal exhaustion detecting means 450, the manufacture of harness is continuously repeated while the terminal 411 exists between the pressing plate 413 and the clipper 405 and all the terminals 411 are treated by press-bonding. On the other hand, when there is no terminal 411 between the pressing plate 413 and the clipper 405 and no terminal 411 to be treated by press-bonding, the harness manufacturing device is shut down.

Description

Detailed Description of the Invention (Industrial Application Field) This invention relates to a process for cutting a to-be-covered electric wire, a process for stripping off a covering portion at a cut end of a cut covered electric wire, and a process for removing a covering portion from a cut end of the cut covered electric wire. The present invention relates to an error handling method that can improve the operating rate of a harness manufacturing apparatus that performs a process of attaching a terminal to the stripped end of a coated wire.

(Prior art and its problems) Conventionally, when some kind of error occurs in a harness manufacturing device, the error causes the harness manufacturing device to momentarily stop (1
If there is an "abnormal stop error" or an error has occurred (referred to as "instantaneous power outage"), the harness manufacturing equipment will be stopped after performing the specified processing on the harness being manufactured at one point ( It is determined whether it is a [cycle stop error] that causes [cycle stop J], and if an "abnormal stop error" is detected, the harness manufacturing equipment is momentarily stopped, while a "cycle stop error" is detected. When an error is detected, the other error is ignored and the harness manufacturing apparatus is stopped after manufacturing of the harness that is in the process of being manufactured at the time of occurrence of the error is completed.

An example of an "abnormal stop error" is a "broken electric wire."

Examples include "entanglement of electric wires". Here, "wire breakage" refers to the loss of the covered M-wire necessary for manufacturing the harness, and "wire tangle" refers to the tangle of the covered wires supplied to the harness manufacturing apparatus. therefore,"
[Abnormal stop error 4] such as broken wire J, 17M wire tangled J, etc.
If you operate the harness manufacturing equipment while this occurs, you will not only be unable to manufacture a good harness;
Since this may cause a failure of the harness manufacturing apparatus, it is necessary to momentarily stop the harness manufacturing apparatus at the same time as the error occurs.

On the other hand, "cycle stop error" is "terminal cut".
, "crimping mistake", "stripping mistake", etc.

Among these errors, "terminal breakage" means that there is only a small amount of terminals left in stock to be crimped.If this error occurs, please complete the manufacturing of the harness that is currently in the process of being manufactured. Since then, the harness manufacturing equipment has been stopped, that is, the cycle has been stopped. Therefore, [at the time terminal breakage 1 is detected, there are still a few terminals left to be crimped, so normally, after the staff member etc. turns off the sensor that detects the "terminal breakage", The person in charge, etc., restarts the harness manufacturing equipment: After that, crimps all or some of the remaining terminals while supervising the operating status of the harness manufacturing equipment, and then stops the harness manufacturing equipment again and replenishes the terminals. was going on.

By the way, unlike ``abnormal stop errors'' such as ``broken wires'' and ``wires tangled,'' ``broken terminals'' do not cause reorganization of the harness manufacturing equipment, so all remaining terminals must be The crimping process is done automatically and there are no particular problems. Therefore, if the harness manufacturing apparatus is stopped after crimping the terminals of ZUBE-C, the number of stops is only one.

However, in conventional harness A L equipment, when a "terminal breakage" is detected, the harness manufacturing equipment is first cycle-stopped, and then all or a portion of the remaining terminals are crimped using a clamp. After that, the harness manufacturing apparatus is stopped again to replenish the terminals, so the harness manufacturing apparatus is stopped twice, resulting in a problem that the operating rate of the harness manufacturing apparatus decreases.

In addition, a "crimping error" refers to a failure to properly crimp a terminal onto an insulated wire, and a "strip error" refers to a failure to properly strip the insulation at the cut end of an insulated wire. say something

When these "crimping mistakes" and "stripping mistakes" occur, it is desirable to stop the subsequent processing and eliminate the harness that is in the process of being manufactured. However, from the perspective of speeding up the operation of harness manufacturing equipment, it is Even if these "crimping mistakes" and "stripping mistakes" occur, they are ignored and the cycle is stopped l'.

Now, if we consider the causes of these "crimping errors" and "stripping errors," we find that they occur due to mechanical or control defects in the harness manufacturing equipment, or due to misalignment of the covered wire due to accidental reasons. There are some things that occur.

Among these, in the case of the museum owner, the defects will continue to occur unless the staff in charge, etc. correct the defect, but in the latter case, the cause itself is an accident [crimping mistake J, "strip mistake"] The probability of consecutive occurrences is extremely low.

In other words, in the case of Moeha, it is necessary to stop the cycle of the harness manufacturing equipment that does not generate one cycle to perform repairs, but in the latter case, it can be said that there is little necessity to stop the harness manufacturing equipment for one cycle.

From the above, if the number of consecutive occurrences of "crimping error" or "strip error 1" exceeds a certain number, it can be determined that the cause is 04, and if it is within a certain number, it can be determined that the latter cause C exists. Because it is possible, [pressure name mistake 1 and "strip mistake"]
If you count the number of consecutive occurrences of 7J and operate the harness manufacturing equipment continuously while the count value is within a certain value, and stop the cycle of the harness manufacturing equipment only when the count value exceeds - chamber, the harness manufacturing equipment can be activated. It is possible to reduce the stoppage frequency to a low F and improve the operating rate.
Wear.

However, with the conventional harness manufacturing equipment J5,
r When a "W mistake" or "strip mistake" is detected, the harness manufacturing equipment is cycle-stopped, so the problem is that the operating rate of the harness manufacturing equipment decreases as the harness manufacturing equipment stops. There is.

In other words, when a [cycle stop error] occurs in conventional harness manufacturing equipment as described above, it is possible to substantially reduce the frequency of stopping the harness manufacturing equipment, thereby improving the utilization rate of the harness manufacturing equipment. Although it is possible to do so, the cycle has been uniformly stopped in response to the occurrence of a "cycle stop error", so there is a problem in that the operating rate of the harness manufacturing apparatus cannot be expected to be improved.

(Object of the invention) This invention was made to solve the above problems,
It is an object of the present invention to provide an error handling method in a harness manufacturing apparatus that can improve the operating rate of the harness manufacturing apparatus.

(Means for Achieving the Object) The present invention includes a process for cutting a covered electric wire, a process for stripping off a covering portion at a cut end of the cut covered electric wire, and a process for cutting a covered electric wire. ! Attach the terminal to the stripped end of the wire fNJ
This is a method for handling errors in a harness manufacturing device that manufactures harnesses by performing G-rou processing. If an instantaneous power outage is required, the harness manufacturing equipment is instantaneously stopped, while if an instantaneous power outage is not required, the IJ construction of the harness is continued for multiple cycles, and only when the above error is not resolved during the continuation. The harness manufacturing apparatus is stopped.

(Embodiment) ■-Dog i Gomome 11 FIG. 9 is a perspective view showing a harness manufacturing apparatus to which an embodiment of the present invention can be applied. This device is a device for manufacturing a harness in which terminals are attached to both ends of a covered electric wire, and includes a wire feeding means 50 and a wire cutting/cutting means 100.
, first and second holding/moving means 200 and 300, first and second terminal crimping means 400 and 500, and ejecting means 550. Note that 800 is a wire feeding device that supplies the WiW wires 600a and 600b wound around stock rollers 700a and 700b, respectively, to the harness manufacturing device.

Note that in this device, the covered electric wires 600a and 600b are
Although the configuration is such that the wires are fed during the actual operation, basically the same configuration is used when a single coated wire is fed.

Next, the operation of the harness manufacturing apparatus shown in FIG. 9 will be explained with reference to FIG. 10. First, two covered electric wires 6
Step S: Feed a predetermined amount of 00a and 600b in the direction of the arrow P along the wire feeding section X by the wire feeding means 50.
1), m electrical wires 60 to be held by the first holding/moving means 200
The upstream side in the wire feeding direction P near the area to be cut at 0a and 600b is held, the downstream side is held by the second holding/moving means 300, and the wire cutting/cutting means 100 holds the downstream side. The i-wires 600a and 600b are each cut and a cutting process is performed (step S2), dividing them into residual wires and cut wires. For convenience of explanation below, when the insulated electric wire 600a is cut, the insulated electric wire located upstream of the electric wire cutting/cutting means 100 will be referred to as the "residual electric wire a", while the downstream The covered wire located on the side is referred to as the cut wire aJ. In addition, the covered electric wire 600b
When cutting is performed, the covered wire located upstream of the wire cutting/cutting means 100 is referred to as "residual wire b", while the covered wire located downstream is referred to as "cut wire b". to be called.

Next, the first holding/moving means 200 and the wire cutting/cutting means 100 strip off the downstream side of the covering portions of the remaining electric wires a and b (first stripping process varnish depth S3), and then the first The holding/moving means 200 moves the remaining wires a and b in the direction of arrow R intersecting the wire feeding direction P, and the first terminal crimping means 400 crimp terminals on the stripped ends of the remaining wires a and b. After the first terminal crimping process is completed (S4), the remaining electric wires a and b are again moved in the direction of arrow S by the first holding/moving means 200 and returned to the cutting position.

On the other hand, the second holding/moving means 300 and the wire cutting/cutting means 100 strip off the upstream side of the covering portions of the cut wires a and b (second stripping process step S5), and then The holding/moving means 300 moves the cutting wires Wa@a, b in the direction of the arrow S, and the second terminal crimping means 500 crimp terminals onto the stripped ends of the cut wires a, b (second terminal crimping). Processing step 86). Thereafter, the cut electric wires a and b are discharged by the discharge means 550.
The holding/moving means 300 is moved in the direction of arrow R and returned to its original position.

After that, in step S8, it is determined whether or not to continue the series of processes (steps 81 to S7), and if it is determined to continue, the series of processes described above are repeated to attach terminals to both ends. FJ-build the worn harnesses one by one. On the other hand, if it is determined in step S8 not to continue, the process is completed.

As described above, in the conventional harness manufacturing apparatus, the first terminal crimping process (step S1) and the second terminal crimping process (step 82) are performed in parallel, but here we will explain the process for easy understanding later. In order to do this, after the covered wire is fed,
The process of assembling a harness with terminals attached to both ends will be discussed with reference to FIGS. 11 and 12. FIG. 71 is a diagram showing the manufacturing process of a harness with terminals attached to both ends, and FIG. 12 is an explanatory diagram of its operation.

First, as shown in Fig. 12(a), two wooden covered electric wires 6
00a and 600b are fed in a predetermined amount along the wire feeding line

In this case, the covered electric wire 60Qa by the electric wire feeding means 50,
The feeding and hanging of 600b is determined based on information regarding the cut length of the covered wire that is input in advance from an operation unit (not shown). Then, cutters 105 and 105 provided in the wire cutting/cutting means 100 cut the covered wires 600a and 600.
Insert the covered electric wire 600 by sandwiching b from both the top and bottom directions.
a and 600b are respectively cut (step S2), and are divided into residual wires and cut wires (FIG. 12(b)).

Next, as shown in FIG. 12(C), the remaining electric wire 601a
, 601b are moved forward a little (in the direction of arrow P), the cutters 105 and 105 move to the cutting position, and the remaining electric wire 601 is moved forward.
Cut the covering part a, 601b. In this case, the remaining electric wire 6
The forward movement of 01a and 601b is determined based on information regarding the peeling length of the covering portion inputted in advance from the operation unit.

Then, while maintaining the cut state (FIG. 12(C)), the remaining electric wires 601a and 601b are moved back. In this way, the remaining electric wires 601a, 601b are cut while locking the cutters 105, 105 to the covering portions of the downstream ends of the remaining electric wires 601a, 601b.
After 601b i! By doing so, the remaining electric wire 601a
, 601b is stripped off (@1 stripping process second step S3), and stripped end portions 603a and 603b are formed (FIG. 12(d)).

Next, as shown in FIG. 12(e), the remaining electric wire 601a
, 601b is moved to the terminal n attachment position of the first terminal crimping means 400 by the first holding/moving means 200, and first the terminal 604a is attached to the stripped end 603a of the remaining electric wire 601a by the first terminal crimping means 400. Then, the terminal 604b is crimped to the stripped end 603b of the remaining electric wire 601b (step 84).

Subsequently, the remaining electric wires 601'a, 60'Ib are returned to the cutting position, and the remaining electric wires 601'a, 601b are connected to the electric wire feeding line is fed in the direction of arrow P (step 81).In this case, the remaining wires 601a and 601b are fed and suspended based on information regarding the cutting quality of the remaining wires inputted in advance from the operation unit (not shown). Then, the cutters 105 and 105 cut the remaining electric wires 601a and 60.
1b from both upper and lower sides, and remove the remaining electric wire 60.
1a and 601b respectively, step 82), and the -
Cutting mold 11 with terminals 604a and 604b crimped to perfection
602a and 602b are formed, respectively. (Figure 12 (
g)) Then, in order to strip off the upstream side of the covering portion of the cut wires 602a, 602b, cut f
Part 111 of f119602a and 602b removed? It moves back by the length. The amount of retraction in this case is also determined based on information regarding the peeling quality of the covering portion inputted in advance from the operation unit. Subsequently, the cutter 105, 105 cuts the sheathing portion of the cut wires 602a, 602b, and while the cut wires 602a, 602b remain in the cut state (FIG. 12(h)), the cut wires 602a, 602b are
2b, and the covering portions of the upstream ends of the cut wires 602a and 602b are stripped off as shown in FIG. 12(i) (step 85). Next, as shown in Figure 12(,i),
The remaining electric wires 602a and 602b are held by the second holding/moving means 3
00 to the terminal crimping position of the second terminal crimping means 500, and first remove the stripped end 60 of the cut 1fIi electric wire 602a.
3a, the terminal 605a is crimped by the second terminal crimping means 500, and then the terminal 605bfJ+ is attached to the stripped end 603b of the cut wire 602b (step S6).

With the above-mentioned culm, a two-wire harness is formed in which terminals are crimped to both ends of a covered electric wire of a predetermined length. In addition,
For the following explanation, the above series of processes will be described as [One wire process (
Step 89) Call it J.

After that, terminals 604a and 604b are attached to both ends thereof.

Cut wire 6 with 605a and 605b attached respectively
02a and 602b are discharged by the discharge means 550.
JI-out processing: step S7), the second holding/moving means 300 is moved in the direction of arrow R and returned to its original position. Here, when the harness manufacturing apparatus is stopped, the harness manufacturing apparatus enters a so-called recycle stop state.

Next, an outline of an embodiment of the error processing method according to the present invention will be explained. When an error is detected during processing of one electric wire by a sensor (not shown) installed in each part of the device δ shown in Fig. 9, the type of error is determined to be an "abnormal stop error". Determine if there is a [cycle stop error 1]. Then, in case of abnormal stop error 1, the harness manufacturing apparatus is momentarily stopped.

On the other hand, if the type of error is a "cycle stop error" such as terminal disconnection 1 marked with -L, simply stop the cycle of the harness manufacturing equipment.
Subsequently, the process for one electric wire is continued a predetermined number of times. and,
If the error is resolved during the process, the harness manufacturing equipment will not be stopped and will continue to operate continuously,
If the error is not resolved even after a predetermined number of times has elapsed, the cycle of the harness manufacturing apparatus is stopped for the first time.

As mentioned above, by performing appropriate processing according to the type of error detected, compared to the conventional case where the harness manufacturing equipment was uniformly stopped in cycles whenever a "cycle stop error" occurred. It is possible to reduce the frequency of stopping the harness manufacturing equipment, and it is possible to avoid improving the operating rate of the equipment.

A detailed explanation will be given below using specific examples.

B. Detailed Description of Examples For the convenience of explanation, errors occurring during the operation of the harness manufacturing apparatus shown in FIG. ” and “S1~
A detailed explanation of the embodiment will be given assuming five types of cases of "lip mistake".

B'-1 terminal broken "Terminal broken" is an error detected when there is only a small amount of terminals left to be crimped, as explained above. Numbers assigned to each of the second terminal crimping means 400° and 500)
This is detected by the terminal disconnection detection means provided.

FIG. 2 is a schematic top view without showing the first terminal crimping means 400. As shown in the figure, the first terminal crimping stage 400 has a crimping groove 401. Terminal feed mechanism 4゜2, bed 403. Anvil 404. Crimper/105. terminal cutter 40
6 and terminal disconnection detection means 450.

This terminal feeding mechanism 402 includes a lever 408 that is integrated with the shaft/IO7 and rotates about the shaft 407 as a fulcrum, and a lever 408 that rotates around the shaft 407 as a fulcrum.
08, and a pushing piece 409 pivotably supported at the tip of the pushing piece 409. 71 That is, as shown in Figure 2,
When the lever 408 swings in the direction of the arrow Y, the protruding part of the chained terminal 411 wound around the stock reel 410 is pushed by the pushing piece 409 and sent out toward the top of the anvil 404 for one piece. Terminal 411 is clipper 405
and transported directly below the cutter 406. Next, Clipper 405. The cutter 406 descends and the clipper 405 crimps the terminal located at the head of the chained terminal 411 to the stripped end (not shown) of the covered wire, and
The crimped terminal and the chained terminal 411 are removed by the cutter 406.
separated by

The terminal breakage detection means 450 includes a pedestal 412 that is located on the transfer path of the chained terminals 411 and protrudes from the side of the bed 403 to support the terminals 411, and a bracket 414 that protrudes from the rear surface of the main body of the crimping machine 401. The upper end is pivoted so as to be able to swing, and the bottom part is formed in a warped shape, and hangs down from above the pedestal 412 toward the pedestal 412, and is always connected to the protruding part of one or two terminals 411. A suppressing plate 413 is provided with an appropriate length so that it can be held horizontally, and a limit is fixed to the lower surface of the bracket 416 protruding from above the bracket 414 and is constantly pushed by the upper surface of the pressing plate 413. It is composed of a switch 415.

Therefore, when there are more than a certain number of terminals 411 to be crimped as shown in FIG.
When the terminal 411 is no longer supplied directly below, the suppression plate 413
swings downward around the blanker l-414, and the limit switch 415 is switched.

By switching the limit switch 415 as described above, the press plate 413 and the screen reel 41
There is no terminal 411 between 0 and 0, and there is no terminal 411 between
It is possible to detect that only a small number of terminals 411 exist between the pressing plate 413 and the clipper 405.

Note that since the second terminal crimping means 500 also has a substantially similar configuration to the first terminal crimping means 400, illustration and description thereof will be omitted here.

Next, when a "terminal breakage" is detected by at least one of the terminal breakage detection means 450 provided in the first terminal crimping means 400 and the terminal breakage detection means 15 provided in the second terminal crimping means 500. The error handling method will be explained with reference to FIG.

FIG. 1 is a flowchart showing an error handling method when a "terminal disconnection" occurs in the harness manufacturing apparatus. The difference between this embodiment and the conventional error handling IJ method is that in the past, when a "terminal breakage" occurs, the harness manufacturing equipment is uniformly stopped from recycling, whereas in this embodiment, "terminal breakage" occurs. The point is that the harness manufacturing apparatus is stopped after manufacturing the number of harnesses corresponding to the value of the counter CI set at the time of startup of the harness manufacturing apparatus after detection.

That is, when the harness manufacturing apparatus is started, first, the counter C□ is initialized (step 511). At this time, the value of the counter C1 is set to a value corresponding to the number of terminals 411 that may exist in the values of the suppression plate 413 (FIG. 2) and the clipper 405 (FIG. 2).

Then, in step 312, it is determined whether a "terminal breakage" is detected by the terminal breakage detection means 450 provided in the first terminal crimping means 400. This moment,
If "terminal breakage" is not detected by the terminal breakage detection means 450, the electric wire 1 tree shown in FIG. 11 is removed (step S9).
and connect terminals/! to both ends. 11 is attached, the harness is manufactured and discharged (step 87). If it is determined in step S8' that harness manufacturing should be continued, the process returns to step 812, whereas if it is determined not to continue, the harness manufacturing apparatus is stopped (step 510) and the process is ended.

On the other hand, in step 812, for example, if a "terminal breakage" is detected by the terminal breakage detection means/I50, step 813 will proceed to step 813, where there is a breakage between the press plate 413 (FIG. 2) and the clipper 405 (FIG. 2). It is determined whether the number of terminals 411 (FIG. 2) is "1". Specifically, first step 5 is to reduce the counter C1 by 1".
14), determine whether the value of the counter C1 is II O+1 or not (Step 315), the value of the counter C□ is “
If 0'', press plate 413 (Fig. 2) and clipper 40
5 (Figure 2) Between which terminal 411 (Figure 2) is 1111
It is determined that only 1. On the other hand, if it is not 0'', it is determined that at least two terminals 411 are present between the suppression plate 413 and the clipper 405.

Then, in step 813, unless the value of the counter CI is 0'', in other words, while it is determined that two or more terminals 411 exist between the press plate 413 and the clipper 405, one electric wire is processed in the same way as above. (Step S
9) is carried out to manufacture a harness with terminals 411 attached to both ends and to order it (Step S7). If it is determined in step S8' to continue manufacturing the harness, the process returns to step S12. On the other hand, when the value of the counter C is 0'', in other words, the suppression plate 413
When it is determined that there is only one terminal 411 between the wire and the clipper 405, the wire
After performing step 6), the manufactured harness is discharged (step 517), and then the harness manufacturing apparatus is cycle-stopped (step 810).

As described above, when the terminal breakage detecting means 450 detects the terminal breakage 1, the pressing plate 413 and the clipper 405
While the terminal 411 exists between the press plate 413 and the clipper 405, the manufacturing of the harness is continuously repeated and all the terminals are crimped. Since the harness manufacturing equipment is stopped when there are no more terminals to be crimped, conventionally the harness manufacturing equipment was stopped a total of 812 times when detecting a broken terminal and replenishing the terminal due to a "broken terminal":
In this embodiment, the stop I1
1 is required only once when replenishing terminals, and the frequency of stopping of the 1J harness manufacturing head can be reduced by that amount, and the operating rate can be improved compared to the conventional method.

In case of J5 and J3 in the above embodiment, the terminal disconnection detection means 45
0, the case where a "terminal break" is detected by the terminal break detection means provided in the second terminal crimping means 50o has been explained. By performing the processing, the operating rate of the harness manufacturing apparatus can be improved compared to the conventional method, as described above.

B-2, crimping error [crimping error] refers to the first or second terminal pressure ('\f
This is an error that is detected when the terminal crimping process performed at stage 400, 500 is not complete, and is detected by a crimping sensor installed in the first or second terminal crimping means (400, 500).

FIG. 3 is a perspective view showing a crimp sensor installed in the first terminal crimp means 400 (or the second terminal crimp means 500). As shown in the figure, a crimp sensor 460
(560) is a pair of emitter 461 (561) and receiver 4
62 (562), and a terminal 463 (563) is crimped to one end after the terminal FE bonding process.
4 (564) to a predetermined position and turn on the projector 461.
A terminal 463 (563) is placed on the optical axis 465 (565) formed by (561) and the receiver/162 (562).
Detect whether or not exists. And this tip axis 465
(565) If the terminal 463 (563) does not exist in 10, an ``rlE mis-arrival'' occurs.

Next, an error handling method when a "crimping error" is detected by the crimping sensor 9'460 after the first terminal pressing process (step S4) will be described with reference to FIG.

FIG. 4 shows an error handling method when a "pressure mark mistake" occurs in the first terminal crimping means 400.
This is the 11th page. The difference between this embodiment and the conventional error handling method is that in the past, when a crimping error j occurred, the harness manufacturing equipment was uniformly stopped by V cycle, but in this embodiment, The point is that the harness manufacturing apparatus is stopped only when "mistakes" have occurred consecutively the number of times corresponding to the counter C3 set at the time of startup of the harness manufacturing apparatus.

When the harness assembling device is turned on while ``IJ'' is activated, the counter C3 is first initialized (step 541).
). At this point, the value of the force "Kuntar C1 is the harness" I
Person in charge C or the like who manages and operates the JTi device sets the value to an appropriate value in advance.

Next, the station shown in FIG. 12]! ! ! (Step 89) is executed sequentially. Then, in step 842, it is determined whether the first terminal crimping process (step 84) has been completely executed, that is, whether a crimping error J has been detected by the crimping sensor 460.

In this step 842, if a "crimping error" is not detected, a discharge process (step S7) is executed. Then, in step S8', a determination is made as to whether or not to continue the series of processes described above. If it is determined that the manufacturing of the harness should be continued, the process returns to step S41, and the above series of processes are continuously repeated, and the harness with terminals attached to both ends is sequentially manufactured for ¥J, while
In step S8', if it is determined not to continue, the harness manufacturing apparatus is stopped (step 310) and the process is completed.

On the other hand, if a "crimping error" is detected in step 842, one electric wire is processed (step S9), and then the harness A is put out for the first time (step 543). Then, in step 844, it is determined whether "crimping errors" have occurred consecutively the same number of times as the value of counter C3 set in step S41, and "crimping errors" have occurred consecutively the same number of times as the value of counter C8. If this occurs,
The harness manufacturing apparatus is stopped (step 510) to end the process, but if not (in other words, if the number of consecutive "crimping errors" is within 0 of the counter C8), the process returns to step S9 and is recorded. Execute a series of steps.

Therefore, when starting up the harness manufacturing device, step S4 is performed.
If you set the (direction) of the counter CP to an appropriate value of 2' or more in step 1, even if a crimping error 1 occurs, the cycling will not be stopped immediately, and one wire for the set number of wires will be processed. (Step S9) continues, and if the first terminal crimping process (Step 84) is completely executed during that time, the harness manufacturing apparatus will not be stopped.
The frequency of stopping of the harness manufacturing equipment due to "crimping errors" is reduced, and the operating rate of the harness manufacturing equipment is improved.

In addition, although the error handling method when a "crimping mistake" is detected by the crimping sensor 460 has been described above, after the second terminal crimping process (step 85), a "crimping mistake" is detected by the crimping sensor 560. The error handling method for this case can be carried out in the same manner as described above, and the operating rate of the Henness YJ manufacturing equipment can be improved in the same manner as described above. Here, the error processing principle when a "crimping mistake" is detected by the crimping sensor 460 is the same as that when a "crimping mistake" is detected by the crimping sensor 560, so the explanation thereof will be omitted.

B-3. Stripping mistake "Striping mistake" is a case where the first stripping process (step 83) is not completely performed as described above or when the second stripping process Jl! This error is detected when (step 35) is not completely performed, and is detected by the terminal processing state inspection means provided in the first and second holding/moving means 200 and 300, respectively. As a terminal processing state inspection means, there is, for example, one shown in Japanese Patent Laid-Open No. 154412/1983.

FIG. 5 is a schematic explanatory diagram showing the terminal processing state inspection means. In the first holding/moving means 200 (or the second holding/moving means 300), the first stripping process L'! (
or the second stripping process) is applied to the wire terminal 202
(302) is the processing path 203 (303) for performing the first terminal pressure 4 process (or the second terminal crimping process).
It is configured so that it is transported in the direction indicated by the solid line arrow at the top.

This terminal processing state inspection means 201 (301) inspects the wire terminals 2 transported along the processing path 203 (303).
A set of photoelectric switches 206 (306), 20 for detecting the passage of the stripped end 204 (304) and residual coating 205 (305) of 02 (302>), respectively.
7 (307).

Each photoelectric switch 206 (306), 207 (307
) are respectively arranged above the moving path of the stripped end portion 204 (304) and above the moving path of the residual coating portion 205 (305). In addition, each photoelectric switch 206
(306) and 207 (307) are equipped with a light emitter and a light receiver, and the light emitted from the light emitter is transmitted to the stripped end 204 (307).
04) or the surface of the remaining coating portion 205 (305), the reflected light is caught by a light receiver and a detection signal is generated. Note that since these detection signals continue while the reflected light is being received, the time of receiving the light corresponds to the time of passage through the peeled end portion 204 (304) and the remaining coating portion 205 (305), respectively.

In this way, the photoelectric switch 206 (306).

The detection signals derived from 207 (307) are given to a processing circuit (not shown) as a peeled edge passage signal and a residual coating passage signal, respectively, and are used for determining whether the peeling is good or bad. Then, in the processing circuit, the time it takes for the bare core wire portion 204 (304) to pass over the photoelectric switch 206 (306), that is, the width of the peeled end portion 204 (304) and the remaining coating portion, is determined from the stripped end passage signal. From the passing signal, the remaining coating portion 205 (305) is detected by the photoelectric switch 20.
7 (307), that is, the residual coating portion 2
05 (305) width. Further, the difference between the two is determined and this difference is compared with a predetermined value to determine whether or not the first stripping process (or the second stripping process) has been reliably executed. That is, if the difference is b larger than the predetermined value, it is confirmed that the first stripping process (or the second stripping process) has been reliably executed, whereas in the opposite case, " Detected as "Strip Miss".

Next, an error handling method when a "slip miss" is detected by the terminal processing state inspection means 201 after the first stripping process (step 83) will be described with reference to FIG.

FIG. 6 is a flowchart tp-t- showing an error handling method when a "strip error" occurs in the first holding/moving means 200. The difference between this embodiment and the conventional error handling method is that
In contrast, in this embodiment, when a "stripping error" occurs consecutively the number of times corresponding to the counter C8 set at the time of startup of the harness manufacturing equipment, the harness manufacturing equipment is cycle-stopped. This is the first time that the harness manufacturing equipment has been cycle-stopped.

That is, when the harness manufacturing apparatus is started, first, the counter C3 is initialized (step 561). At this time, the value of the counter C8 is set in advance at an appropriate value by a person in charge of managing and operating the harness manufacturing apparatus.

Next, the one wire process (step S9) shown in FIG. 12 is executed. Then, in step 862, it is determined whether the first stripping process (step 83) has been completely executed, that is, whether the terminal processing state inspection means 201 has detected "strip error 1."

In this step 862, if a "strip error" is not detected, a discharge process is executed. Then, in step 38', it is determined whether or not to continue the series of processes described above. If it is determined to continue, the process returns to step 361, and the series of processes described above is continuously repeated to connect terminals at both ends. Take (= 1 removed harness is sequentially I
However, if it is determined in step S8' not to continue, the harness manufacturing apparatus is stopped (step 310) and the process is completed.

On the other hand, if a "strip error" is detected in step 362, one electric wire is processed (step 89) and then the harness is discharged (step 563).
. Then, in step S64, "strip miss" is entered in step 861, and the counter C8 set by 13 is
It is determined whether or not the stripping error has occurred the same number of times as the value of the counter C8, and if the stripping error has occurred the same number of times as the value of the counter C8, the harness assembling device is stopped ( Step 510) If the process is not completed (that is, if the number of consecutive "strip misses" is within the value of counter C8), the process returns to step 861 and executes the series of processes described above.

As described above, if the value of the counter C8 is set to "2" or more or an appropriate value of F in step 561 when the harness manufacturing apparatus starts fJ+, the cycle will stop immediately even if [strip error or [] occurs. If the first stripping process (step 83) is completely executed during this period, the harness manufacturing apparatus will no longer be stopped. Therefore, the frequency of stopping of the harness manufacturing apparatus due to "strip mistakes" is reduced, and the operating ratio of the harness manufacturing apparatus is improved.

In addition, although the error processing method when a "strip error" is detected by the terminal processing state inspection means 201 has been described above, the second stripping processing (step 8
5) After that, the error handling method when a "strip error" is detected by the terminal processing state inspection means 301 is performed in the same manner as described above. ! 1 B
The operating rate of the device can be improved. Here, since the error processing principle when a "strip error" is detected by the terminal processing state inspection means 201 is the same as that when a "strip error" is detected by the terminal processing state inspection means 301, the explanation will be given below. omitted.

B-4. Wire breakage and wire tangle "Wire breakage" is when the covered electric wire 600a stocked on the stock roll 700a runs out or the covered electric wire 6 stocked on the stock roll 700b runs out.
This is an error detected when 00-b is missing,
These errors are detected by wire breakage detection means provided in the wire feeding device 800.

"Wire tangle" is an error detected when the coated wires 600a, 600b become tangled in the wire feeder 800, making it impossible to supply wires from the wire feeder 800 to the harness manufacturing device.
These errors are detected by wire tangle detection means provided in the wire feeding device 800.

FIG. 7 is a schematic diagram of the wire feeding device 800. This wire feeding device 800 is a stock roll 700.
Covered electric wires 60 wound around a and 700b, respectively.
This is a device that supplies 0a and 600b to the harness manufacturing equipment, and at the time of this supply, the coating M $! i1600a, 6
00 b G-Do not apply unnecessary tension and cover wire 60
This prevents twisting of 0a and 600b.

As shown in the figure, a covered electric wire 600a wound around a stock roll 700a passes through a guide hole 802a provided at approximately the center of a plate 801a, and two
It is configured to be sent to the harness manufacturing apparatus via a set of guide rollers 803a and a set of two supply rollers 804a. Note that the supply roller 80
4a is configured to rotate continuously and at a variable speed by a drive means (not shown). Moreover, one roller 813 of the two rollers that constitute the guide roller 803a
One end of a horizontal support plate 805a extending in the horizontal direction is attached to a. A spring 806a is attached to approximately the center of the horizontal support plate 805a, and this spring 806a allows the horizontal support plate 805a and the guide roller 803a to move together in the vertical direction (T, LJ force direction). In addition, horizontal support #
A limit switch 807a, which is a wire breakage detection means, and a switch 808a, which is a wire tangle detection means, are provided opposite to each other so as to sandwich the other end of the wire 1805a.

On the other hand, when the coated wire 600a is smoothly supplied to the harness manufacturing apparatus without tangles, the limit switch 807a is activated as shown in FIG.

Although 808a and horizontal support plate 805a are not in contact with each other,
When the stock roll 700a runs out of the covered wire 600a, the stock roll 700a loses its binding force on the covered wire 600a, so the spring 806
The guide roller 80 moves upward (upwards) due to the spring force of a.
3a and the horizontal support plate 805a are integrated and elegant, and the usage end of the horizontal support plate 805a is the limit switch 807a.
Push. As a result, "wire breakage" of the covered type &1600a is detected.

On the other hand, when the electric wire 600a becomes tangled, the tangled portion gets caught in the guide hole 802a of the plate 801a and the hole 802
Even though it is no longer possible to pass through P, the supply row 5804a rotates in a certain direction in an attempt to feed the covered wire 600a in the P direction, and tension is applied to the covered wire 600a between the plate 801a and the supply roller 804a. As a result, the guide roller 803a and the horizontal support plate 805a move down together against the spring force of the spring 800a, and the other side of the horizontal support plate 805a moves towards the limit switch 80.
8a is pushed and "wire entanglement" is detected.

In addition, in the above, the configuration of a mechanism that can prevent twisting of the M electric wire 600a without applying unnecessary tension to the M electric wire 600a, and detect "wire breakage" and "wire entanglement" is explained. However, covered wire 60
0b is also provided with a configuration similar to the above, and since the configuration can be easily understood from FIG. 7, illustration and description of the configuration will be omitted here.

Next, we will discuss an error handling method when a wire breakage is detected by the wire breakage detection means installed in the wire feeder 800 or a wire tangle-1 is detected by the wire tangle detection means. This will be explained with reference to FIG.

FIG. 8 shows a frame [1-h] indicating an error handling method when a "wire breakage J" or "wire tangle J" occurs. ” occurs, the harness manufacturing equipment is momentarily stopped as in the past.

That is, the parking fI of the harness manufacturing apparatus shown in FIG.
When manufacturing a harness according to the J process, first, the covered wires 600a and 600b are sent to the harness manufacturing apparatus using the wire sending device 800 (step 581).
). Next, in step S82, the process goes to step S82, and the harness manufacturing equipment cycle is stopped until the basic operation of the harness manufacturing equipment is completed or the harness manufacturing equipment cycle is stopped due to "crimping errors" etc. occurring several times in a row as described above. Investigate whether "wire breakage" or "wire tangle" has occurred. Then, when the harness manufacturing apparatus stops with neither "wire breakage" nor "wire tangle" occurring, the feeding of the covered wires 600a and 600b is finished (step 583), while the harness manufacturing apparatus stops until the harness manufacturing apparatus stops. If a "wire breakage" or "wire tangle" occurs during the process, the harness manufacturing equipment will be momentarily stopped as in the past (step 3).
84).

Here, unlike "terminal breakage", "crimping mistake", "stripping mistake", etc., these "wire breaks".

If a "wire tangle" error occurs, the harness manufacturing equipment is momentarily shut down (step 584) as in the past.The reason for this is that these errors can be caused by a "broken terminal" or "crimping error".
This is because, unlike "strip error 1," etc., the harness manufacturing apparatus cannot be operated continuously when these errors occur.

C0 Others In the actual example above, the cycle of the harness manufacturing equipment is stopped when "crimping mistakes" and "stripping mistakes" occur more than a predetermined number of times in a row, but in addition to this, "crimping mistakes" and "stopping mistakes" It is also possible to grasp the occurrence situation of "" by systematic processing, and then stop the harness manufacturing apparatus to perform maintenance or the like in response to the situation. For example, if ``crimping errors'' do not occur continuously, but the number of occurrences exceeds a certain level, it is unlikely that ``crimping errors'' are occurring simply due to accidental reasons. (for example, a bug in the control program). Therefore, when a "crimping error" occurs at a vA degree of -room or higher, it is possible to eliminate potential defects in the harness manufacturing device by stopping the harness assembly equipment and investigating the cause. It has the effect of being able to dissolve moisture.

In the above embodiment, the wire discharge process (steps S43 and 563) is performed whenever a "crimping mistake" or the like occurs, so that a defective harness that causes a "crimping mistake" or other problem is distinguished from a good harness. However, this is not a particular problem as the selection of both can be easily done manually.

However, if the defective harness is marked before the wire I is removed (steps 843, 863), it becomes easier to sort out the good harness and the defective harness.

In addition, if the defective harness is discharged to a different location from the good harness when performing the wire discharge process (step S43.563), there is no need to manually separate the two, making it more streamlined. Can perform harness manufacturing work.

(Effects of the Invention) As described above, according to the error handling method in a harness manufacturing device according to the present invention, an error occurring in the harness manufacturing device is detected, and an instantaneous power outage is required depending on the type of error detected. If the above error is not resolved, the harness manufacturing device is continued for multiple cycles, and the harness manufacturing device is stopped only when the above error is not resolved during the continuation, so that when the above error is resolved during the continuation, the harness manufacturing device is stopped. This has the effect that the harness manufacturing apparatus is not stopped and the operating rate of the apparatus can be improved.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing an error handling method for "tearing" in a harness manufacturing apparatus which is an embodiment of the present invention, FIG. 2 is a schematic cross-sectional view showing a first terminal crimping means, and FIG. FIG. 4 is a perspective view showing the crimping sensors provided in the first and second terminal crimping means, and FIG. -t・-t, FIG. 5 is a schematic explanatory diagram showing the terminal processing state inspection means, and FIG.
Figure 7 is a schematic configuration diagram of the wire feeding device, and Figure 8 is a flowchart showing the error handling method when a wire breakage or wire tangle is detected. A flowchart showing an error handling method, FIG. 9 is a perspective view showing a 36 harness manufacturing device to which an embodiment of the present invention can be applied, and FIG. 10 is a flowchart showing the basic operation of the harness manufacturing device shown in FIG. 11. , FIG. 11 to FIG. 9 are process diagrams showing the manufacturing procedure when manufacturing a harness using a sizing device, and FIG. 12 is an explanatory diagram of eJ manufacturing. Figure 1

Claims (1)

[Claims] (1) The process of cutting the insulated wire, the process of stripping off the sheath at the cut end of the cut insulated wire, and the process of attaching a terminal to the stripped end of the insulated wire from which the sheath has been stripped. A method for handling errors in a harness manufacturing device that manufactures harnesses by detecting an error that occurs within the device, and detecting an error that occurs in the device, and detecting an error in the harness manufacturing device when an instantaneous power outage is required depending on the type of detected error. The harness manufacturing device is characterized in that the harness manufacturing device causes an instantaneous power outage, but if the instantaneous power outage is not necessary, continues manufacturing the harness for multiple cycles, and only stops the harness manufacturing device when the above-mentioned error is not resolved during the continuation. How to handle errors in .