JP3654105B2 - Wire harness work support instruction device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a work support instruction device for a wire harness .
[0002]
[Prior art]
In general, when manufacturing a wire harness, multiple wires are routed on a workbench called a wiring board, connectors are connected to the routed wire bundle, taping is performed, exterior parts Or wearing. The shape of the wire harness is extremely complicated, the number of attachment parts is large, and the processing steps are diverse. Therefore, conventionally, techniques for displaying work procedures and the like by various methods have been proposed.
[0003]
For example, Japanese Patent Application Laid-Open No. 9-147461 proposes a technique for instructing an operator about the wiring order, the component assembly position, and the like with visible light such as a laser beam. The essence is that a guidance device capable of irradiating visible light in the YX direction is provided on the wiring board, and the visible light is radiated to the wiring path, the wire harness holder, etc. according to the order in which the wires are laid on the wiring board. It is to do. Then, as is clear from the 0014 column of the same publication, the predetermined work position is displayed with visible light, and after the work at the displayed work position is completed, the next work position is displayed with visible light. Is configured to repeat.
[0004]
[Problems to be solved by the invention]
However, it is necessary to detect the end of work for each work process of the worker only by irradiating visible light in accordance with the work order. There was also a problem that it became complicated.
[0005]
That is, when there are, for example, N processes necessary for manufacturing one wire harness on the wiring board, the visible light needs to be switched N times. In that case, it is necessary to detect whether the work is progressing for each process and to input the progress status of the work to the control unit for switching the irradiation position, so a sensor for detecting the end of the process. The detection method is complicated. Therefore, the conventional configuration is not suitable for a product such as a wire harness that requires a multi-step manufacturing operation.
[0006]
Although it is conceivable to switch the display position by setting a timer or the like, even in that case, it is necessary to set / change the switching time for each process, and the setting itself becomes complicated. In addition, if the switching time is set for each process, it is not preferable because the actual working time of the worker is easily shifted from the set time.
[0007]
Furthermore, in the support method for guiding work support over time, there is a case in which the display mode is difficult to press against the worker and the efficiency is not necessarily improved.
[0008]
This invention is made | formed in view of the said malfunction, and makes it a subject to provide the instruction | indication apparatus for work assistance of the wire harness which can display a multi-step manufacturing procedure by the simplest possible structure.
[0009]
[Means for Solving the Problems]
The present invention includes a light source that emits visible light, a first holder that holds the light source so as to be swingable about a predetermined axis, and the first light source provided around the corresponding axis. A light source drive member that swings, a second holder that holds the first holder so as to be swingable about an axis orthogonal to the axis, and a holder that swings the first holder about a corresponding axis The drive member for light source and the drive member for holder can be controlled so as to simultaneously illuminate the processed part of the wire harness and the component housing part related to the processed part according to the manufacturing process sequence of the wire harness And an operation control instruction device.
[0010]
According to the present invention, the work order of each display position is displayed by simultaneously irradiating the processed part of the wire harness and the component housing part related to the processed part according to the manufacturing process order of the wire harness by visible light. can do. In this way, it is possible to display the work order without detecting the progress of the worker one by one.
[0011]
Here, “simultaneously” is not limited to a strict sense, but may be of a level that allows humans to be identified simultaneously by a visible light locus.
[0012]
Furthermore, in this apparatus, it is preferable that an elastic member for preventing backlash of the reduction gear connected to the light source driving member is provided only between the first holder and the light source. In this case, in order to oscillate the light source, the light source driving member is provided in the first holder, and the second holder for holding the first holder so as to be able to oscillate is provided via the light source driving member. Therefore, the holder driving member holds the light source driving member in a cantilever manner. As a result, the holder driving member receives the load of the light source driving member and the first holder held via the light source driving member. There is no need to provide an elastic member.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic front view showing an example of use of a pointing device that can employ the support method of the present invention, and FIG. 2 is a schematic side view of FIG. In the following description, the worker P (see FIG. 2) is assumed to be the front.
[0014]
With reference to these drawings, the pointing device 10 according to the illustrated embodiment is used by being attached to the wiring board 1. The wiring board 1 supports the wiring board 2 for routing the wire harness WH with the legs 3, and the worker P side of the wiring board 2 makes the work P easy to work. It is inclined downward (see FIG. 2).
[0015]
The pointing device 10 includes a movable base 12 that can be moved by a caster 11, a cylindrical body 13 that is erected on the movable base 12, and a support bracket 14 that is inserted into the cylindrical body 13 and can be moved up and down. doing. The support bracket 14 supports a light irradiation unit 150 that irradiates the wiring board 2 with laser light as visible light.
[0016]
The movable table 12 is a pedestal having a rectangular shape in plan view, and is disposed immediately below the wiring board 2 in use. A control unit 20 to be described later is placed on the movable table 12.
[0017]
The cylindrical body 13 is fixed to one end portion of the movable base 12 so as to stand up behind the wiring board 1 when used. Two sets of a plurality of set screws 16 equally distributed at three locations in the circumferential direction are provided at predetermined positions of the cylindrical body 13, and the vertical positions of the support bracket 14 introduced inside are set by these set screws 16. It can be adjusted.
[0018]
The support bracket 14 is a rod-like member bent substantially at a right angle. One end of the support bracket 14 extends along the vertical direction and is accommodated in the cylindrical body 13, and the other end faces the wiring board 2. Not.
[0019]
3 is a front sectional view of the light beam irradiation unit according to the embodiment of FIG. 1, FIG. 4 is a side sectional view of the light beam irradiation unit according to the embodiment of FIG. 1, and FIG. It is a top view of the light irradiation unit which concerns. FIG. 6 is a perspective view of the light beam irradiation unit according to the embodiment of FIG.
[0020]
Referring to these drawings, the light irradiation unit 150 includes a cover 151 fixed to the other end portion of the support bracket 14, a stay 152 provided in the cover 151, and a mounting member 152 c attached to the stay 152. A holder 153 (second holder) attached thereto, an X-axis motor (holder drive member) 154 held by the holder 153, and an L-shaped holder 155 (first holder) that is swung by the X-axis motor 154 Holder) , a Y-axis motor (light source drive member) 156 held by the L-shaped holder 155, a light source clamp 157 that is swung by the Y-axis motor 156, and a light source unit 160 held by the light source clamp 157. Have.
[0021]
The cover 151 is a box that opens downward, and divides a space necessary and sufficient for a later-described Y-axis motor 156 to swing.
[0022]
The stay 152 is generally formed in an inverted L shape when viewed from the front, and its short piece 152a is horizontally fixed to the top of the cover 151 by a bolt B1, and the long piece 152b is suspended in the cover 151 along a vertical line. ing.
[0023]
The holder 153 is a substantially rectangular parallelepiped block, and an X-axis motor 154 (described later) is fixed to the back of the holder 153 and extends horizontally rearward. Spacers 153a and 153b are fixed to the upper and lower surfaces of the holder 153 with bolts B2, and the end portions protrude forward. The end portions 153c and 153d of the spacers 153a and 153b constitute a stopper that regulates the amount of rotation of a Y-axis motor 156 described later.
[0024]
The X-axis motor 154 and the Y-axis motor 156 are both embodied as stepping motors, and can rotate the corresponding L-shaped holder 155 and light source clamp 157 in both directions. The output shaft of the X-axis motor 154 extends horizontally along the front-rear direction, and an L-shaped holder 155 is swingably connected via a coupling 154a. The L-shaped holder 155 is configured to have an L shape in plan view, and in the home position shown in FIGS. 3 to 5, the output shaft of the Y-axis motor 156 extends along the horizontal direction orthogonal to the output shaft of the X-axis motor 154. Thus, the Y-axis motor 156 is supported. Each of the holders 153 and 155 is provided with photoelectric sensors S1 and S2 for position detection, and the holder 153 detects the dog S11 attached to the L-shaped holder 155, thereby detecting the L-shaped holder. As for 155, by detecting the dog S21 attached to the light source clamp 157 , it is detected whether or not each of the motors 154 and 156 is stopped at a predetermined home position.
[0025]
The light source clamp 157 holds the light source unit 160 disposed between the pair of clamp pieces 157a and 157b facing left and right with a bolt B3.
[0026]
As shown in FIG. 4, a tension coil spring (elastic member) 162 is provided between the light source clamp 157 and the L-shaped holder 155, and is connected to the Y-axis motor 156 by its urging force. Shaking around the Y axis of the light source unit 160 due to backlash caused by the reduction gear 156a (only shown in FIG. 6) is prevented. On the other hand, no backlash tension coil spring is employed between the L-shaped holder 155 and the holder 153. This is because the L-shaped holder 155 is provided with a Y-axis motor 156, and a holder 153 is provided via the Y-axis motor 156 so that the L-shaped holder 155 is swingable. The L-shaped holder 155 (and also the Y-axis motor 156) is held in a cantilever manner. As a result, the load of the L-shaped holder 155 and the Y-axis motor 156 is received by the X-axis motor 154, so that it is not necessary to provide an elastic member for preventing the backlash for the X-axis motor 154. .
[0027]
FIG. 7 is a block diagram schematically showing a basic configuration for controlling the motors 154 and 156 according to the embodiment of FIG.
[0028]
Referring to FIG. 7, the control unit 20 includes a microprocessor 21 therein, and corresponds to the process of the wire harness WH to be manufactured in the memory 22, the irradiation position corresponding to each process, and the irradiation position. Drive data of each motor 154, 156 is stored. These data are input using a personal computer (not shown). The CPU 21a of the microprocessor 21 is supplied with output signals from the sensors S1 and S2 of the light beam irradiation unit 150.
[0029]
In addition, in order to drive the motors 154 and 156 with higher accuracy, the microprocessor 21 is connected to motor control drivers 23a and 23b for the motors 154 and 156, and these motor control drivers 23a and 23b. The motors 154 and 156 can be selectively driven via the motor.
[0030]
Further, the microprocessor 21 is provided with an operation panel 24. By operating the operation panel 24, the light source unit 160 of the light irradiation unit 150 can be forcibly turned off in addition to turning on the power. It has become.
[0031]
In addition, in the illustrated embodiment, the instruction signal output unit 171 and the continuity test signal output unit 172 of the connection instruction device 170 attached to the wiring board 2 are connected to the microprocessor 21, and the wire harness is connected. The connection instruction signal and the continuity test signal of the electric wire with terminal connected at the time of manufacturing are output from the output units 171 and 172, respectively. Thereby, the processing process of the wire harness in the manufacturing process and the pass / fail judgment after the processing are input to the control unit 20, and the information can be used for the connection support procedure described later.
[0032]
FIG. 8 is a flowchart showing an operation procedure according to the present embodiment.
[0033]
Referring to the figure, the control unit 20 is initialized in step S1, and mode selection is performed in step S2. This mode selection is for selectively switching between a normal instruction processing mode S3 which is a normal routine and a teaching processing mode S4 for inputting data and changing settings. A mode is selected and executed.
[0034]
FIG. 9 is a flowchart showing details of the normal instruction processing mode in FIG.
[0035]
With reference to the figure, when the normal instruction processing mode is selected, the microprocessor 21 of the control unit 20 reads data to be displayed in step S31. In the reading operation according to the illustrated embodiment, the process is input by reading the instruction signal output from the connection instruction signal output unit 171 of the connection instruction device 170. In the illustrated embodiment, this input information is collated with the data stored in the memory 22 in step S32. If the data does not match at the time of this data collation, the process proceeds to step S36, an error is displayed, and the process is terminated.
[0036]
If the collated data matches, the light source unit 160 is activated and illumination is started in step S33.
[0037]
In the illustrated embodiment, as shown in FIGS. 10 to 12 to be described later, the processing portion of the wire harness WH related to the work order and the corresponding component housing portion (case 4) are paired. Since the visible light is displayed at the same time, it is possible to display the work order without detecting the progress of the worker one by one. In this aspect, since the work position can be displayed at the same time, there is no restriction over time, and the display state can be easily changed according to the work state of the operator.
[0038]
Next, in step S <b> 34, the microprocessor 21 determines whether or not the worker has finished the work based on the output signal of the continuity test signal output unit 172 of the connection support device 170. If the output signal is a pass signal, the light source unit 160 is turned off in step S35, and the process ends. If the output signal is a reject signal in step S34, the process proceeds to step S36 to display an error, and the process ends.
[0039]
FIG. 10 is a perspective view showing a typical display example according to the present embodiment. In FIG. 10, 2a is a wiring tool (so-called U-shaped jig) for routing the wire harness WH, and 4 is a case (component storage section) for storing articles necessary for the wired wiring harness WH. The connectors and exterior parts attached to the wire harness WH, or the above-mentioned wiring tool 2a are appropriately classified and accommodated.
[0040]
As shown in the figure, as a support display at the time of manufacturing the wire harness by the light irradiation unit 150, for example, a linear locus GA is formed between the processing position of the wire harness WH and the case 4 corresponding thereto. It is preferable to irradiate with illumination. As described above, the term “simultaneously” in the present invention is not limited to the strict meaning at the same time, but may be a level that allows human beings to be identified simultaneously by the visible light locus GA.
[0041]
FIG. 11 is a perspective view showing a display mode according to another embodiment of the present invention.
[0042]
As shown in FIG. 11, as a mode of irradiating the work position, a plurality of pointing devices 10 (or light beam irradiation units 150) may be prepared, and a plurality of locations may be irradiated simultaneously with visible light.
[0043]
FIG. 12 is a perspective view showing still another embodiment of the present invention.
[0044]
In the example shown in the figure, the illumination 5 is attached to each case 4 and can be individually turned on at a predetermined timing by the control unit 20 (see FIG. 6). A plurality of processes are simultaneously displayed by simultaneously illuminating the illumination 5 of the case 4 related to a specific work process and the processing portion of the wire harness WH corresponding to the case 4.
[0045]
The above-described embodiments are merely preferred specific examples of the present invention, and the present invention is not limited to the above-described embodiments. For example, the light irradiation unit may be configured to form a light image by combining a plurality of mirrors and scanning and illuminating laser light.
[0046]
Further, the irradiation timing is not limited to the above embodiment.
[0047]
For example, the mode shown in FIG. 13 can be adopted. FIG. 13 is a flowchart according to another embodiment of the present invention. Of the contents shown in FIG. 13, the same steps as those in FIG.
[0048]
As shown in FIG. 13, the procedure for setting the illumination timing may be a method of counting the standard setting time as shown in step S301. This standard setting time is a standard time required for the worker to perform the work, and is counted by a timer of the microprocessor 21 or the like. The worker performs a predetermined work based on the illumination operation of the light source unit 160 within the standard set time. When such a standard setting time is set, as shown in step S303, in addition to the case where the illumination is terminated after the standard setting time has elapsed as shown in step S302, as well as before the standard setting time has passed, It is also possible to forcibly terminate illumination by a manual operation (specifically, operation of the operation panel 24). As a result, work support by illumination can be performed in a state more suitable for the work state of the worker, so that the workability can be further improved.
[0049]
It goes without saying that various modifications can be made within the scope of the claims of the present invention.
[0050]
【The invention's effect】
As described above, according to the present invention, since a plurality of work orders are displayed at the same time, the switching operation of the display position by visible light becomes unnecessary as much as possible, and a wire harness having a relatively complicated process can be obtained. Also during the production, it is possible to suitably perform work support. Further, even when the display position is switched by a setting such as a timer, a plurality of processes are displayed at the same time, so that the setting becomes easy and a deviation from the actual work time of the operator is less likely to occur. Therefore, according to the present invention, it is possible to display a wire harness manufacturing procedure with a simple configuration as much as possible.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing an example of use of an indicating device that can employ the present invention.
FIG. 2 is a schematic side view of FIG. 1;
FIG. 3 is a front sectional view of the light beam irradiation unit according to the embodiment of FIG. 1;
4 is a side cross-sectional view of the light beam irradiation unit according to the embodiment of FIG. 1. FIG.
FIG. 5 is a plan view of a light beam irradiation unit according to the embodiment of FIG.
6 is a perspective view of a light beam irradiation unit according to the embodiment of FIG. 1. FIG.
7 is a configuration diagram schematically showing a basic configuration for controlling each motor according to the embodiment of FIG. 1; FIG.
FIG. 8 is a flowchart showing an operation procedure according to the present embodiment.
FIG. 9 is a flowchart showing details of a normal instruction processing mode in FIG. 8;
FIG. 10 is a perspective view showing a typical display example according to the present embodiment.
FIG. 11 is a perspective view showing still another display mode using the pointing device of FIG. 1;
FIG. 12 is a perspective view showing still another embodiment of the present invention.
FIG. 13 is a flowchart according to another embodiment of the present invention.
[Explanation of symbols]
1 wiring board 2 wiring board 4 case 5 illumination 10 indicating device 20 control unit 150 light irradiation unit P worker

Claims (1)

A light source that emits visible light;
A first holder for holding the light source in a swingable manner around a predetermined axis;
A light source driving member provided on the first holder and configured to swing the light source around a corresponding axis;
A second holder for holding the first holder so as to be swingable about an axis orthogonal to the axis;
A holder driving member for swinging the first holder about a corresponding axis;
Control means capable of controlling the light source driving member and the holder driving member so as to simultaneously illuminate the processing portion of the wire harness and the component housing portion related to the processing portion in accordance with the sequence of manufacturing the wire harness. A work support instruction device characterized by comprising:

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