JPH0635621Y2 - Electric wire terminal processing condition inspection device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a method of removing a coating by a sensor provided on the transfer route while transferring an electric wire terminal that has been subjected to a coating stripping process to expose a bare core wire. The present invention relates to an electric wire terminal processing state inspection device for determining whether the processing state is good or bad.

(Prior art and its problems) In an automatic terminal crimping device that continuously and automatically performs a terminal crimping process that includes a process of stripping the coating of the wire end and a process of crimping the terminal to the stripped portion. As a device for inspecting whether or not the stripping process has been carried out well, there is conventionally, for example, JP-A-61-154412.

FIG. 13 is a schematic explanatory view showing the device. In this automatic terminal crimping device, the tip of the electric wire end 2 is transferred in the R direction indicated by the solid arrow on the transfer path 7 in order to perform the terminal crimping process on the electric wire end 2 after the stripping process. . Then, a pair of photoelectric switches 8a and 8b for respectively detecting the passage of the stripping end 4 and the residual coating portion 5 of the wire terminal 2 transported along the transport path 7 are provided.
Are disposed above the moving path of the residual coating portion 5 and above the moving path of the residual coating portion 5. Also, each photoelectric switch 8a, 8
b is provided with a light emitter and a light receiver, the light emitted from the light emitter is reflected on the surface of the stripping end 4 and the surface of the residual coating portion 5, respectively, and the light receiver catches the reflected light and outputs a detection signal. Is generated. Since these detection signals continue while the reflected light is received, the light receiving time corresponds to the time taken for the stripping end 4 and the residual coating 5 to pass.

In this way, the detection signals derived from the photoelectric switches 8a and 8b are given to a processing circuit (not shown) as a stripping end portion passing signal and a residual coating portion passing signal, respectively, and are used for determination of stripping quality. Be served. Then, in the processing circuit, the time for the bare core wire portion 4 to pass over the photoelectric switch 8a from the stripping end portion passing signal, that is, the width of the stripping end portion 4,
The residual coating portion 5 detects the photoelectric switch 8b from the residual coating portion passing signal.
The time for passing over, that is, the width of the residual coating portion 5 is obtained. Further, the difference between these two is obtained, and the difference is compared with a predetermined value to determine whether or not the stripping process has been executed reliably. That is, when the difference is larger than the predetermined value, it is confirmed that the stripping process has been executed reliably, while in the opposite case, a defect in the stripping process is detected.

Since the conventional terminal processing state inspection device is configured as described above, if the length of the coating to be stripped during coating stripping processing (hereinafter referred to as "slip length") changes, stripping of the wire terminal 2 is acceptable. May be inaccurate.
For example, in the case where, after the wire terminal 2 having the strip length as shown in FIG. 13 is subjected to the terminal treatment state inspection of the wire terminal 2 whose strip length is shorter than the strip length of the previous wire terminal 2 by the above apparatus, As shown in FIG. 14, since the strip length of the wire end 2 to be inspected is shortened, not only the bare core wire portion 4 but also a part of the residual coating portion 5 is simultaneously passed over one photoelectric switch 8a. However, it becomes unclear whether the signal output from the photoelectric switch 8a is the stripped end portion passage signal or the residual coating portion passage signal, and appropriate inspection cannot be performed.

Therefore, in the conventional device, it is necessary to adjust the positions of the photoelectric switches 8a and 8b according to the strip length, which is conventionally done mechanically. Therefore, it is necessary to adjust the positions of the photoelectric switches 8a and 8b every time the strip length is changed, and the setup change work accompanying the change of the strip length becomes complicated.

(Purpose of Invention) This invention was made to solve the above problems.
It is an object of the present invention to provide an electric wire end treatment state inspection device capable of promptly responding to a change in strip length without the need to adjust the position of the sensor accompanying a change in strip length.

(Means for Achieving the Purpose) The present invention is provided on a transfer path while transferring an electric wire terminal in which a core wire is exposed by performing a coating stripping process for stripping a coating of a predetermined strip length. A terminal processing state inspection device for an electric wire for determining whether a coating stripping processing state is good or bad by a sensor, and in order to achieve the above-mentioned object, while holding a residual coating portion of the electric wire end, the electric wire is inspected by the sensor inspection area. And a holding / moving means that is movable in a two-dimensional direction including the transfer path, a storage unit that stores information relating to the arrangement of the sensor, and the information that is read to obtain the difference between the strip length and the correction amount. It consists of a calculating unit for determining and an adjusting unit for controlling the holding / moving means based on the correction amount, and when the electric wire is transferred by the holding / moving means, it is possible to judge whether the coating stripping processing state at the electric wire end is good or bad. And a control unit that adjusts the transfer path so that a required predetermined portion to be inspected passes through the inspection area of the sensor.

(Embodiment) A. Embodiment FIG. 1 is a schematic explanatory view showing one embodiment of the wire end treatment state inspection device according to the present invention. As shown in the figure, this terminal processing state inspection device is a stripping quality determination means 1 for determining the quality of the coating stripping process as described later in detail.
And a holding / moving means 3 which is movable in two dimensions (P, Q, R and S directions) while holding the wire terminal 2, and a peeling quality determination means 1 and a control means for controlling the holding / moving means 3. (Not shown).

The holding / moving means 3 holds the root of the electric wire terminal 2 on which the coating stripping process has been performed, and in response to a command from the control means based on the strip length data, the bare core wire portion 4 of the electric wire terminal 2.
And the residual coating portion 5 (hereinafter referred to as "coating end")
6 is configured to be transferred along a predetermined transfer path 7. For example, in the case of the above-described automatic terminal crimping apparatus, the coating stripping processing section exists in the S direction and the terminal crimping processing section exists in the R direction. Then, the electric wires held by the holding / moving means 3 in the coating stripping processing section are indicated by arrows P and U.
The wire is stripped by the cutter while being driven back and forth in the direction, and then the wire end 2 is transferred in the R direction along the transfer path 7 and passes above the photoelectric switches 8a and 8b, and then the terminal crimping process is performed as it is. Wire terminal 2
The terminal is crimped to the bare core wire portion 4.

Further, the stripping quality determining means 1 includes the bare core wire portion 4 of the wire terminal 2 transferred along the transfer path 7 by the holding / moving means.
And a pair of photoelectric switches 8a and 8b for respectively detecting the residual coating portion 5 and a processing circuit for judging whether the peeling is good or bad based on the detection signals derived from the photoelectric switches 8a and 8b (for this circuit, It will be described in detail later) and.

FIG. 2 shows a layout diagram when a diffuse reflection type is used as the photoelectric switches 8a and 8b, and FIG. 3 shows a layout diagram when an opposite type is used. 2 and 3 show the electric wire terminal 2 held by the holding / moving means 3 when the right (R direction) side to the left (S direction) side of the transfer path 7 of FIG. 1 is viewed. In the illustrated case, the electric wire terminal 2 has reached a position facing the photoelectric switches 8a and 8b.

As shown in FIG. 2, in the case of the diffuse reflection type, each photoelectric switch 8a, 8b is composed of one switch unit A, B respectively, and these switch units A, B are the same as those of the bare core wire portion 4. It is arranged above the moving path and above the moving path of the residual coating portion 5, respectively. Each switch unit A, B is equipped with a light emitter and a light receiver, and the light emitted from the light emitter 9a, 9b
Are reflected by the surface of the bare core wire portion 4 and the surface of the residual coating portion 5, respectively, and when the light receiver catches the reflected light, a detection signal is generated. That is, when the bare core wire portion 4 passes through the effective detection range of the photoelectric switch 8a (hereinafter referred to as "first inspection area"), the length of the detection signal corresponding to the passage time of the bare core wire portion 4 is While being output from the photoelectric switch 8a, when the residual coating portion 5 passes within the effective detection range of the photoelectric switch 8b (hereinafter referred to as "second inspection area"),
The photoelectric switch 8b outputs a detection signal whose length corresponds to the passage time of the residual coating portion 5.

Further, as shown in FIG. 3, in the case of the opposed type, the photoelectric switches 8a and 8b are respectively the emitter / receiver pair A1, A2 and B1.
· Made of B2. A1 of these emitter / receiver
A2 and B1 and B2 are arranged so as to face each other so that their optical axes coincide with each other across the movement path of the bare core wire portion 4 and the movement path of the residual coating portion 5. Since the optical axes are the same,
The lights 9a and 9b emitted from the light projectors A1 and B1 are always incident on the light projectors A2 and B2, respectively, but when the bare core wire portion 4 and the residual coating portion 5 block the light 9a and 9b as shown in the figure, Receiver A2,
B2 produces a detection signal. Since these detection signals continue while the bare core wire portion 4 and the residual coating portion 5 pass through the first and second inspection areas of the photoelectric switches 8a and 8b, respectively, their lengths are the same as in the case of FIG. It corresponds to the passage time of the bare core wire portion 4 and the remaining coating portion 5, respectively.

The detection signals derived from the photoelectric switches 8a and 8b in this manner are given to the processing circuit described later as a bare core wire portion passing signal and a residual coating portion passing signal, respectively, and are used for determination of whether the stripping is good or bad. It

FIG. 4 is a schematic block diagram showing such a processing circuit, and the waveform of each part thereof is shown in the waveform diagram of FIG. Processing circuit
Reference numeral 10 denotes a clock generator 11 for generating a clock C shown in FIG. 5A, a bare core wire passing signal S ₁ from the photoelectric switch 8a and a residual coating portion passing signal S ₂ from the photoelectric switch 8b.
AND gates 12a and 12b that perform AND processing with clock C respectively
And a counter 13a, 13b that counts the outputs of the AND gates 12a, 12b, respectively, and a comparison calculation circuit 14 that compares the output count values of the counters 13a, 13b. Functions as a means.

Next, a process of determining whether the coating stripping process is good or bad by the terminal processing state inspection device will be described with reference to FIG.
Immediately after the coating stripping process is performed, FIG.
As shown by the solid line in (b), the end of the electric wire terminal 2 is located at a position separated from the transfer path 7 by a distance Y _{0 in the} Q direction. Therefore, the correction amount α required to match the covered end 6 of the wire terminal 2 with the transfer path 7 is calculated by the CPU of the control means (not shown) as follows, for example. That is, the distance Y ₀ previously stored in the memory
Then, based on the data of the strip length L _S (L _S1 , L _S2 ) for the electric wire terminal 2 input from the outside, the difference between the two is obtained, and the correction amount α is determined. For example, when the distance Y ₀ and the strip length L _S1 have the same value as shown in FIG. 6 (a), the correction amount α is zero, and as shown in FIG. 6 (b), the correction amount α is zero. When Y ₀ and the strip length L _S2 are different, the correction amount α is (Y ₀ −L _S2 ). The correction amount α is positive in the P direction and negative in the Q direction.

Next, in accordance with a command from the control means, the holding / moving means 3
Thus, the held electric wire terminal 2 is transferred in the P direction (or Q direction) by the calculated correction amount α, and the electric wire position is adjusted so that the covered end 6 of the electric wire terminal 2 matches the transfer path 7. To be done. For example, as shown in FIG. 6B, the strip length L _S2 is smaller than the distance Y ₀ and the correction amount α (= Y ₀ −L
_{When S2} ) is positive, the wire end 2 has a correction amount α in the P direction.
Only (= Y ₀ −L _S2 ) is transferred. After that, the electric wire end 2 is turned so that the covered end 6 of the electric wire end 2 is along the transfer path 7.
Is transferred in the direction. As a result, the bare core wire portion 4 and the residual coating portion 5, which are the inspected portions necessary for determining the quality of the coating stripping processing state of the wire terminal 2, pass through the first and second inspection areas of the photoelectric switches 8a and 8b, respectively. As a result, the photoelectric switches 8a and 8b output the bare core wire passing signal S ₁ and the residual coating portion passing signal S _2, respectively.

Next, the bare core wire portion passing signal S ₁ and the residual coating portion passing signal S ₂ are given to the processing circuit 10 to judge whether the stripping is good or bad. Here, the details will be described separately for the case where the coating stripping is good and the case where the coating stripping is bad.

When the coating stripping is good, the bare core wire passage signal S ₁ derived from the photoelectric switch 8a becomes as shown by the solid line in FIG. 5 (b), and the residual coating passage signal derived from the photoelectric switch 8b is obtained. S ₂ becomes as shown in FIG. 5 (d). Double pass signal
The time widths of S ₁ and S ₂ correspond to the widths of the bare core wire portion 4 and the residual coating portion 8, respectively, as shown in FIG.

The AND gate 12a is connected to the clock signal C of FIG.
In FIG. 5 (b), the signal S ₃ shown by the solid line in FIG. 5 (c) is output by performing AND processing with the bare core wire passing signal S ₁ shown by the solid line. Also
The AND gate 12b is connected to the clock signal C shown in FIG.
The signal S ₂ shown in FIG. 5D is received and subjected to AND processing, and the signal S ₄ shown in FIG. 5E is output. These AND
The number of pulses included in the output signals S ₃ and S ₄ of the gates 12a and 12b is proportional to the time width of the passing signals S ₁ and S ₂ , respectively.

These pulse numbers are respectively counted by the counters 13a and 13b, and the count values are given to the comparison operation circuit 14. The comparison operation circuit 14 compares both count values and determines whether the difference is larger than a predetermined value. When the difference is larger than the predetermined value, it can be seen that there is a sufficient difference in the lateral width between the core wire portion and the covering portion, and the covering is peeled off well. Therefore, in this case, the comparison calculation circuit 14 outputs a determination signal indicating that the peeling is good. On the other hand, when the difference is less than or equal to the predetermined value, it can be seen that there is no sufficient difference in the lateral width between the core wire portion and the covering portion, and the covering is peeled off well. Therefore, in this case, the comparison calculation circuit 14 outputs the determination signal indicating the peeling failure. For example, if zero is most easily selected as the above-mentioned predetermined value, the quality of peeling will be determined by whether or not both count values are equal.
Of course, an appropriate predetermined value may be preset according to the shape of the electric wire.

Assuming now that zero is selected as the predetermined value,
AND gate 1 shown in FIG. 5 (c) solid line and FIG. 5 (e)
Since the numbers of output pulses of 2a and 12b are 6 and 12, respectively, the comparison operation circuit 14 determines that 12-6> 0, that is, 12> 6, and outputs a determination signal indicating good stripping.

Next, the case where the peeling of the coating is defective will be described. In this case, the core wire that should be exposed is still covered,
Bare core wire passing signal S derived from photoelectric switch 8a
_As shown by the dotted line in FIG. 5 (b), ₁ has the same time width as that of the residual coating portion passing signal S _{2 in} FIG. 5 (d). Therefore, as shown by the dotted line in FIG. 5 (c), the output pulse number (= 12) of the AND gate 12a becomes equal to the output pulse number (= 12) of the AND gate 12b shown in FIG. 5 (e). The comparison operation circuit 14 determines that 12-12 = 0, that is, 12 = 12, and outputs a determination signal indicating a peeling defect.

As described above, when the strip length is changed, the correction amount α is calculated from the difference between the strip length data (L _S1 , L _S2, etc.) and the distance Y ₀ stored in the memory, and the correction amount α is calculated. By controlling the holding / moving means 3 based on this, the bare core wire portion 4 and the residual coating portion 5 which are the inspected portions necessary for determining the quality of the coating stripping processing state of the electric wire terminal 2 are photoelectrically switched.
Since the transfer paths of the wire terminals 2 are adjusted so as to pass through the first and second inspection areas a and 8b, respectively, the photoelectric switches 8a and 8b according to the conventional change of the strip length are required.
Since it is not necessary to adjust the position of itself, a change in strip length can be dealt with quickly.

Although the non-contact type sensor of the photoelectric switches 8a and 8b is used as the sensor of the stripping quality determination means 1 in the above embodiment, the present invention is not limited to this, and other non-contact type sensors can be used. May be used. For example, photoelectric switches 8a, 8
Instead of b, an image pickup camera may be provided at a predetermined position, an image of the vicinity of the covering end 6 may be taken by this image pickup camera, and the quality of the covering removal may be determined based on the image data.

Further, the sensor of the stripping quality determining means 1 is, for example, Japanese Patent Laid-Open No. 61
A contact type sensor as shown in No. -154412 may be used. That is, a pair of leaf spring electrodes separated by a minute distance so as to be kept in a non-conducting state is arranged at a position corresponding to the photoelectric switch 8a of the above-mentioned embodiment, and when the core wire portion passes through the separated portion, It may be possible to determine whether the peeling is good or bad by the conduction / non-conduction between the pair of leaf spring electrodes.

Next, an application example to which the electric wire end treatment state inspection device according to the present invention is applied will be described.

B. Configuration of Application Example FIG. 7 is a perspective view showing a harness manufacturing apparatus to which an embodiment of the terminal processing state inspection apparatus according to the present invention is applied,
The figure is its side view, and FIG. 9 is its plan view.

As shown in these figures, this device is a device for manufacturing a harness in which terminals are attached to both ends of a covered electric wire.
Electric wire feeding means 50, electric wire cutting / cutting means 100, first and second holding / moving means 200, 300, first and second
The terminal crimping means 400 and 500, the discharging means 550, and the first and second terminal processing state inspection means 700 and 800 (FIG. 9).

Then, the two covered electric wires 600a and 600b are fed by the electric wire feeding means 50 along the electric wire feeding line X in a predetermined amount in the arrow P direction, and the first holding and moving means 200 feeds the covered electric wires 600a and 600b.
While holding the upstream side in the electric wire feeding direction P in the vicinity of the planned cutting area in, the second holding / moving means 300 holds the downstream side, and the electric wire cutting / cutting means 100 holds the covered electric wires 600a and 600b, respectively. It cuts and performs a cutting process, and divides into a residual electric wire and a cutting electric wire. For convenience of description below, the coated electric wire located upstream of the electric wire cutting / cutting means 100 when the coated electric wire 600a is cut is referred to as "residual electric wire a", while The covered electric wire located on the side is referred to as “cut electric wire a”. Further, when the coated electric wire 600b is subjected to a cutting process, the coated electric wire located upstream of the electric wire cutting / cutting means 100 is referred to as "residual electric wire b", while the coated electric wire located downstream is "cut". The electric wire b ".

Next, the first holding / moving means 200 and the electric wire cutting / cutting means 1
With 00, the downstream side of the coating part of the residual electric wires a and b is peeled off,
Further, the residual electric wires a and b are moved in the arrow R direction intersecting the electric wire feeding direction P by the first holding / moving pivot 200, and the quality of the stripping process is good or bad by the first terminal processing state inspection means 700. After it is determined that the terminals are crimped by the first terminal crimping means 400 to the stripped ends of the residual electric wires a and b, the first holding and
The residual electric wires a and b are moved in the arrow S direction by the moving means 200 to return to the cutting position. On the other hand, the second holding / moving means 300 and the electric wire cutting / cutting means 100 peel off the upstream side of the covering portion of the cutting electric wires a and b, and the second holding / moving means 300 further cuts the cutting electric wires a and b. Is moved in the direction of arrow S, and the quality of the stripping process is determined by the second terminal processing state inspection means 800, and then the second terminal crimping means 500 is attached to the stripping ends of the cut wires a and b. The terminals are crimped by. After that, the cutting wires a and b are discharged by the discharging means 500, and the second holding / moving means 300
Is moved in the direction of arrow R and returns to its original position. By repeating this operation continuously, harnesses having terminals attached to both ends are sequentially manufactured. In addition, in this device,
Although two 600a and 600b are configured to be fed at the same time, the same configuration is basically adopted when feeding one covered electric wire.

Hereinafter, each means will be described in detail.

B-1. First holding / moving means 200 FIG. 10 is a perspective view showing the first holding / moving means 200. As shown in FIG. 7, FIG. 8, FIG. 9 and FIG. 10, the first holding / moving means 200 includes first holding means 201 capable of holding the covered electric wires 600a and 600b, and first holding means 201. Means of holding 2
First moving means 20 for movably supporting 01 in three dimensions
2, cylinders 203a and 203b that constitute a drive means for holding the covered electric wires 600a and 600b, and motors 205 and 206 (eighth aspect) that form a drive means for moving the first holding means 201.
Figure) and.

The first moving means 202 includes a base 207, a horizontal moving mechanism 208 (FIG. 8) mounted on the base 207, and an advancing / retreating moving mechanism 209 (FIG. 8) mounted on the horizontal moving mechanism 208. It is provided with the advancing / retreating movement mechanism 209 and is configured with an elevating movement mechanism 210 to which the first holding means 201 is attached. That is, the rail 211 is arranged on the base 207 along the left-right direction indicated by the arrows R and S, and the horizontal movement mechanism 208 is slidably attached to the rail 211 along the rail longitudinal direction. Further, a rail 213 (Fig. 8) is attached to the forward / backward moving mechanism 209 along the front-back direction indicated by arrows P and Q, and this rail 213 is slidably supported by a rail receiver 214 of the horizontal moving mechanism 208. Then, the advancing / retreating mechanism 209 is attached to the horizontal moving mechanism 208 so as to be capable of advancing / retreating along the front-rear direction. Furthermore, the vertical movement mechanism 210 has arrows T and U.
The rail 215 is attached along the vertical direction shown in Fig. 1 and the rail 215 is used for the bearing 21 of the forward / backward moving mechanism 209.
It is slidably supported by 6 (Fig. 8), and the lifting / lowering moving mechanism 210
Is attached to the advancing / retreating movement mechanism 209 so as to be vertically movable. The horizontal movement mechanism 208, the advancing / retreating movement mechanism 209, and the elevating / lowering movement mechanism 210 are respectively moved by appropriate amounts so that the first holding means 201 is movable in the three-dimensional direction.

Further, a pulley 217 is attached to the rotary shaft of the motor 205, and a pulley 219 is rotatably attached to the base body 207.
A belt 218 is stretched between these pulleys 217 and 219. Further, the belt 218 is connected to the horizontal moving mechanism 208 via a connecting piece 220, and the horizontal moving mechanism 208 is configured to move in the left-right direction by rotationally driving the motor 205 and rotating the belt 218. ing.

A pair of rails 221, 221 are arranged along the front-rear direction at the left and right ends of the drive mechanism 212 having the motor 206, and the rail receivers 222, 222 are provided on the pair of rails 221, 221, respectively.
The advancing / retreating moving portion 223 is attached via (FIG. 8) so as to be slidable along the rail longitudinal direction. Forward / backward moving part
A guide groove 224 is formed in the horizontal direction 223, and the base end of the advancing / retreating mechanism 209 is rotatably attached to a slide groove 225 slidably fitted in the guide groove 224. On the other hand, the rotary plate 227 corresponds to the pulley 226 (FIG. 8) attached to the rotary shaft of the motor 206 and the drive mechanism 21.
It is rotatably attached to the main body 2 and a belt 228 (FIG. 8) is stretched between the rotary plate 227 and the pulley 226. Further, one ends of link mechanisms 229 and 229 are attached to the left and right ends of the rotary shaft 227a of the rotary plate 227, respectively, and the other ends of the link mechanisms 229 and 229 are connected to the advancing / retreating moving unit 223, and the motor 206 is rotationally driven to rotate the rotary shaft. When 227a rotates counterclockwise in FIG. 8, the advancing / retreating moving part 223 is pushed forward (in the arrow Q direction) via the link mechanisms 229, 229,
Along with this, the advancing / retreating movement mechanism 209 is configured to move forward. Further, when the rotary shaft 227a is rotated in the reverse direction, the advancing / retreating movement mechanism 209 is configured to be pulled back to the rear.

A spring receiving piece 230 is projectingly provided at the front end of the advancing / retreating movement mechanism 209, and a push-up spring 231 is attached between the spring receiving piece 230 and the elevating / lowering mechanism 210 to push the elevating / lowering mechanism 210 upward. It is energized.

The first holding means 201 attached to the lifting movement mechanism 210 is
As shown in FIG. 10, holding cylinders 240a and 240b through which the covered electric wires 600a and 600b can be inserted are provided. This holding cylinder 240
Notches are formed in the body of a and 240b respectively,
Claws 242a, 242b are attached to the pistons of the cylinders 203a, 203b so as to correspond to the notches. Then, when the cylinders 203a, 203b are driven to close the attachment claws 242a, 242b, the covered electric wire 600 inserted into the holding cylinders 240a, 240b.
The a, 600b is held by the claws 242a, 242b and the inner peripheral surfaces of the holding cylinders 240a, 240b while being held by the claws 242a, 242b.
When is opened, the holding of the covered electric wires 600a and 600b is released.

In addition, the first holding means 201 includes a guide member 250 so that the coated electric wires 600a and 600b are guided into the holding cylinders 240a and 240b.
Is installed. The guide member 250 is a guide cylinder 251a, 25a.
1b and supporting members 253a, 251a, 251b for guiding, respectively.
It is composed of guide cylinders 252a and 252b that are attached via 253b. The exposed region of the covered electric wire 600a between the guide cylinders 251a and 252a and the guide cylinders 251b and 252a.
In the exposed area of the covered electric wire 600b between b, the covered electric wire 600a,
600b is configured to be held by the electric wire feeding means 50 in the vertical direction.

B-2. Second Holding / Moving Means 300 FIG. 11 is a perspective view showing the second holding / moving means 300. As shown in FIG. 7, FIG. 8, FIG. 9 and FIG. 11, the second holding / moving means 300 is similar to the first holding / moving means 200 in that the second holding means 301 and the second holding means 301 Means of transportation 30
Composed of 2 and. The second moving means 302 is different from the first moving means 202 in that the lifting / lowering moving mechanism 308 of the second moving means 302 is configured to be lifted / lowered by the cylinders 360a and 360b. . That is, the cylinders 360a, 360
b is attached to the forward / backward moving mechanism 309, and
The respective pistons of 360a and 360b are connected to the elevating / lowering mechanism 310, and the cylinders 360a and 360b are driven so that the elevating / lowering mechanism 310 is moved up and down.

Further, the second holding means 301 is provided with holding projecting pieces 370a, 370b corresponding to the covered electric wires 600a, 600b, and the holding projecting pieces 370a and the claws 342a are directed upward. The holding groove 371a that is opened is formed, and the holding groove that is also opened upward by the holding projection 370b and the holding claw 342b.
371b is formed. Then, with the covered electric wires 600a, 600b housed in the holding grooves 371a, 371b, the cylinders 303a, 303b are
When the claws 342a and 342b are closed by driving the
It is configured such that 0b is held and held, and the holding of the covered electric wires 600a and 600b is released when the holding claws 342a and 342b are opened. Further, by raising the second holding means 301 by the cylinders 360a, 360b with the clasps 342a, 342b open, the covered electric wires 600a, 600b can be housed in the holding grooves 371a, 371b from their upper openings. Is configured. Since other configurations are the same as those of the first holding / moving means 200, the same reference numerals are given to the same portions and the description thereof will be omitted.

B-3. First terminal processing state inspecting means 700 As shown in FIG. 9, the first terminal processing state inspecting means 700 is arranged between the wire cutting / cutting means 100 and the first terminal crimping means 400. It is located in. Since the detailed configuration is the same as that in FIG. 1, its description is omitted here.

B-4. Second terminal processing state inspecting means 800 As shown in FIG. 9, the second terminal processing state inspecting means 800 is arranged between the wire cutting / cutting means 100 and the second terminal crimping means 500. It is located in. Since the detailed configuration is the same as that in FIG. 1, its description is omitted here.

B-5. Other Means The harness manufacturing apparatus shown in FIGS. 8 to 10 is provided with an electric wire in addition to the above-mentioned first and second holding / moving means 200 and 300 and the first and second terminal processing state inspection apparatuses 700 and 800. Feeding means 50, electric wire cutting / cutting means 100, first and second
Although the terminal crimping means 400 and 500 and the discharging means 550 are provided, these means are not directly related to the present invention, and therefore detailed description of the configuration will be omitted here.

C. Operation of Application Example FIG. 12 is a flowchart showing the operation of the harness manufacturing apparatus.

In this harness manufacturing apparatus, after the coated electric wires 600a and 600b are set to the initial positions, when the operator gives an operation start command through the operation unit (not shown), the electric wire feeding means 50 supplies electric wires to the covered electric wires 600a and 600b. Is started (step S1).

Next, when the feeding amount of the coated electric wires 600a and 600b by the electric wire feeding means 50 reaches a predetermined value, the electric wire feeding means 50 stops and the feeding of the covered electric wires 600a and 600b is stopped (step S2). In this case, the feed amount of the covered electric wires 600a and 600b by the electric wire feeding means 50 is determined based on information about the cut length of the covered electric wire which is input in advance from the operation unit (not shown).

Subsequently, the covered electric wires 600a and 600b are held by the holding means 201 and 301 (FIG. 8) of the first and second holding and moving means 200 and 300. Then, the covered electric wire 600 by the electric wire feeding means 50
While the holding of a and 600b is released, the cutters 105 and 106 are fully opened and the covered electric wires 600a and 600b are cut (cutting process: step S3).

Next, the holding means 301 is moved slightly to the left (S direction) to prevent the residual electric wires a and b from interfering with the cut electric wires a and b when the residual electric wires a and b are advanced later. There is.

Next, the residual electric wires a and b are slightly advanced by the forward movement of the holding means 201 (arrow P direction), the cutters 105 and 105 are moved to the cutting positions, and the covering portions of the residual electric wires a and b are cut. In this case, the amount by which the holding means 201 feeds the residual electric wire forward is determined based on information about the stripping length of the covering portion, which is so-called strip length, which is input in advance from the operating portion (not shown).
Then, in the cut state, the holding means 201 is retracted, and the covering portion at the downstream end of the residual electric wire is peeled off (first peeling process: step S4).

Next, based on the strip length, the moving means 202 moves the holding means 201 in the P or Q direction so that the coated end of the residual electric wire end is along the transfer path (not shown), and then the first terminal crimping means. Moved to the right side (R direction) toward 400. Then, the quality of the coating stripping process (step S4) for the residual wires a and b is determined by the first terminal processing state inspection means 700 (first terminal processing state inspection: step S4).
Five). Here, since the terminal processing state inspection is performed as described above after the first stripping processing (step S4), even if the strip lengths are different, the first terminal processing state inspection means 700 is provided. There is no need to adjust the mounting position of the photoelectric sensor (not shown), and a change in strip length can be dealt with quickly.

If it is determined that the coating stripping process has been successfully performed,
Then, the terminals are sequentially crimped to the stripped ends of the residual wires a and b by the first terminal crimping means 400 (first terminal crimping process: step S6). If the coating stripping process is determined to be defective, the device is stopped. When the first terminal crimping process (step S6) is completed, the holding means 201 returns to the electric wire feeding line X, and electric wire feeding is executed (step S7).

As shown in FIG. 12, while the steps S5 to S7 are performed, the second stripping process (step S8), the second terminal processing state inspection (step S9), and the second terminal crimping process are performed. (Step S10) and discharge processing (step S11) are performed. That is, in the same manner as in step S4 above, the second
By the holding / moving means 300 and the electric wire cutting / cutting means 100, the upstream side of the covering portion of the cut electric wire is peeled off (step S8),
Further, the second holding / moving means 300 moves the cutting wires a and b in the P or Q direction and then in the arrow S direction so that the coated end of the cutting wire end is along the transfer path, and the above step S5 is performed. The quality of the coating stripping process (step S8) for the cut wires a and b is determined in substantially the same manner as described above, and the second terminal crimping means 500 is applied to the stripped end of the cut wire in substantially the same manner as in step S6. Terminals are crimped (step S1
0). After that, the cut wire is discharged by the discharging means 550 (step S11), and the holding means of the second holding / moving means 300.
301 is moved in the direction of arrow R and returned to its original position.

(Effects of the Invention) As described above, according to the present invention, the holding / moving means capable of moving the electric wire in a two-dimensional direction including the inspection area of the sensor and the transfer path while holding the residual coating portion of the electric wire end. When the electric wire is transferred by the holding / moving means,
After reading the information related to the arrangement of the sensors stored in the storage unit and determining the correction amount from the difference with the strip length in the calculation unit, the holding / moving means is controlled based on the correction amount, and the electric wire terminal Since the transfer path is adjusted so that the predetermined inspected part necessary for determining the quality of the coating stripping processing state passes through the inspection area of the sensor, the stripping length of the wire end is changed. However, it is not necessary to adjust the position of the sensor, and it is possible to quickly deal with the change in the coating stripping length.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing an embodiment of an electric wire end treatment state inspection device according to the present invention, FIG. 2 is a layout diagram when a diffuse reflection type is used as a photoelectric switch, and FIG. Fig. 4 is a schematic diagram showing the processing circuit of the terminal processing state inspection device shown in Fig. 1, and Fig. 5 is a waveform diagram showing the waveform of each part in Fig. 4. FIG. 6 is a schematic explanatory view for explaining the operation of the terminal processing state inspection device shown in FIG. 1, and FIG. 7 is a perspective view showing a harness manufacturing device to which an embodiment according to the present invention can be applied. 8 is a side view thereof, FIG. 9 is a plan view thereof, FIG. 10 is a perspective view showing a first holding / moving means, FIG. 11 is a perspective view showing a second holding / moving means, and FIG. Is a flow chart showing the operation of the harness manufacturing apparatus shown in FIGS. 7 to 9, FIGS. [Fig. 3] is a schematic explanatory view showing a conventional wire end treatment state inspection device. 2 ... Electric wire terminal, 3 ... Holding / moving means, 7 ... Transfer path, 8a, 8b ... Photoelectric switch, 200 ... First holding / moving means, 300 ... Second holding / moving means

Continuation of front page (56) Reference JP-A-57-198850 (JP, A) JP-A-58-95911 (JP, A) JP-A-59-123413 (JP, A) JP-A-59-127512 (JP , A) JP 60-254575 (JP, A) JP 60-96117 (JP, A) JP 61-154412 (JP, A) Actual development 60-158165 (JP, U) Actual development 60-158166 (JP, U) Actually opened 62-134079 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. An electric wire terminal, in which a coating stripping treatment for stripping a predetermined strip length is stripped and a bare core wire is exposed, is transferred, and a sensor provided on the transfer path is used to remove the coating. A terminal inspection state inspection device for an electric wire for determining pass / fail, wherein the electric wire is held in a two-dimensional direction including an inspection area of the sensor and the transfer route while holding a residual coating portion of the electric wire end. Moving means, a storage unit for storing information related to the arrangement of the sensor,
The information is read, the difference between the strip length is obtained, the correction amount is determined, and the adjustment unit that controls the holding / moving means based on the correction amount is used. And a control unit that adjusts the transfer path so that a predetermined inspected portion necessary for determining the quality of the coating stripping processing state at the electric wire terminal passes through the inspection area of the sensor. Inspecting device for wire end processing condition.