JP2000184542A - Device for cutting/peeling covered electric wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To curtail space and also reduce cost by incorporating a cutting/ peeling means and an inspecting means into the same device, and performing inspection simultaneously with cutting/peeling action. SOLUTION: A pair of cutting blades cuts the end portion of a covered electric wire W by a predetermined length by the driving force of a servomotor 21 for an axial direction or servomotor 22 for cutting off, and a pair of peeling blades 20a, 20b cuts and strips a covered part of the covered wire W at a predetermined position from the end. Next, a camera 26 photographs the end part of the covered electric wire being illuminated by a light source, and bad or good is decided by analyzing this picture image signal. Quality is enhanced, since only conforming articles are conveyed to the next process. Namely, it becomes unnecessary to provide an inspecting means at a different position in this cutting/peeling device, since it performs cutting/peeling operation of the covered wire W by a cutting/peeling means A, and performs its inspection by an inspecting means B. Accordingly, it becomes possible to reduce space as the whole system, and to reduce the cost by curtailing the number of required parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of cutting a covered electric wire, in which the terminal of the covered electric wire is cut into a predetermined length, the end portion is peeled, and an inspection is performed to determine whether or not the cutting operation is proper. It relates to a peeling device.

[0002]

2. Description of the Related Art Conventionally, when processing a work using an automatic processing machine, it is generally performed to check whether or not the processing has been properly performed. For such an inspection, for example, an image processing apparatus as shown in FIG. 7 has been conventionally used (see Japanese Patent Application Laid-Open No. 3-154173).

In FIG. 7, a carriage 1 is transported along a transport line along a guide rail 2, and a plurality of processing devices (not shown) and inspection devices are arranged along the transport line. The image processing apparatus 3 is one of the inspection apparatuses.
Is arranged. The image processing device 3 has four television cameras 5 fixed to a support arm 4, each of which is aimed at a drawing board 6 of the trolley 1 passing through a transport line. An illumination light source 7 is provided so as to irradiate the drawing board 6 of the carriage 1. A plurality of support members 8 are fixed on the drawing board 6 of the cart 1, and a wiring harness 9 as an inspection work is supported on the support members 8.

The carriage 1 transports the transport line, and in this transport process, the wiring harness 9 is processed by each processing device (not shown). After the processing is performed as described above, the carriage 1 transports the transport line, and the image processing device 3 or the like inspects whether the processing is appropriate.

[0005] When such a system is applied to a stripping line for cutting an insulated wire, a terminal for cutting the insulated wire is cut to a predetermined length and a stripping device for stripping the terminal portion, An inspection device (image processing device) for inspecting whether or not the cutting and peeling operation is appropriate is provided at different positions on the transport line.

[0006]

However, when the inspection device is provided at a position different from the cutting and peeling device, there is a problem that a large space is required. Also, because the cutting and peeling process and the inspection process are different,
There is a problem in that the number of components increases in the manufacture of each device, and it is expensive.

Accordingly, the present invention has been made to solve the above-mentioned problem, and a coating capable of performing a cutting and peeling step and an inspection step in a space-saving manner and at a reduced cost by reducing the number of parts. An object of the present invention is to provide an electric wire cutting and stripping apparatus.

[0008]

According to a first aspect of the present invention, there is provided a cutting and stripping method in which a terminal portion of a covered electric wire is cut into a predetermined length, and the covered portion of the covered electric wire is cut off at a predetermined position from the terminal and peeled. Means for inspecting whether or not a covered portion of the covered electric wire is properly cut at a predetermined position from an end of the covered electric wire. The peeling means and the inspection means are incorporated in the same apparatus, and the inspection is performed simultaneously with the cutting peeling operation.

In this apparatus for stripping and covering a covered electric wire, the cutting and stripping operation of the covered electric wire is performed by the cutting and stripping means, and the inspection is performed by the inspection means. Therefore, it is not necessary to provide an inspection device at another position.

According to a second aspect of the present invention, there is provided the apparatus for cutting and stripping a covered electric wire according to the first aspect, wherein the inspection means is disposed below the covered electric wire, and emits light to a terminal portion of the covered electric wire. It has a light source to irradiate, and an imaging means arranged above the covered electric wire on the opposite side to the light source and photographing a terminal portion of the covered electric wire. In the apparatus for cutting and stripping a covered electric wire, in addition to the effect of the first aspect of the present invention, since the imaging means is disposed above the terminal part of the covered electric wire, the imaging means is cut off from the terminal part of the covered electric wire with respect to the imaging means. The falling object, including the covered part, does not collide, and the light source and the imaging means are arranged symmetrically around the terminal part of the covered wire, so the contour of the terminal part of the covered wire is clearly defined. I can shoot.

According to a third aspect of the present invention, in the apparatus for cutting and stripping the covered electric wire according to the second aspect, the position of the light source disposed below the covered electric wire is set with respect to a terminal portion of the covered electric wire. And the position of the image pickup means disposed obliquely below and above the covered electric wire is obliquely above the terminal portion of the covered electric wire.

In the apparatus for cutting and stripping a covered electric wire, in addition to the function of the second aspect of the present invention, since the light source is not located immediately below the terminal portion of the covered electric wire, the covered portion cut off from the terminal portion of the covered electric wire is the light source. It is unlikely to fall into the sky, and is unlikely to be an obstacle to lighting or photography.

[0013] The invention of claim 4 is the invention of claim 2 or claim 3.
2. The apparatus according to claim 1, wherein the surface of the lighting plate of the light source is formed as an inclined surface that is inclined downward from a central portion toward an outer peripheral end.

According to the apparatus for cutting and stripping a covered electric wire, in addition to the function of the second or third aspect of the present invention, when the covered portion cut off from the terminal portion of the covered electric wire falls to the light source, the surface of the lighting plate is cut off. Roll down the slope and fall down.

According to a fifth aspect of the present invention, there is provided the apparatus for cutting and stripping a covered electric wire according to any one of the first to fourth aspects, wherein the imaging means is supported on the apparatus main body via a vibration isolator. And

According to this apparatus for stripping and covering a covered electric wire, in addition to the effects of the inventions according to the first to fourth aspects, vibrations generated during the operation of stripping the covered electric wire and the like are attenuated at the portion of the vibration insulator. You.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of an apparatus for cutting and stripping a coated electric wire according to an embodiment of the present invention, FIG. 2 is a right side view of the apparatus for cutting and stripping, and FIG. 3 is a left side view of the apparatus for cutting and stripping. 4 is a front view of the light source, FIG. 5 is a perspective view of an illumination plate of the light source, and FIG.
FIG. 3 is a schematic circuit block diagram of an inspection means of the cutting and peeling apparatus.

1 to 3, the apparatus for cutting and stripping a covered electric wire has a cutting and stripping means A and an inspection means B, and the cutting and stripping means A and the inspection means B are incorporated in the same apparatus. ing. The cutting skin removing means A is configured as follows. That is, the fixed base 11 is erected on the base 10,
The clamp guide shaft 12 is supported by the fixed base 11. A pair of clamp bases 13a and 13b are slidably attached to the clamp guide shaft 12, respectively, and a pair of clamps 14a and 14b are fixed to the pair of clamp bases 13a and 13b. The clamps 14a and 14b are connected to a clamp driving cylinder 15
It can be displaced in the direction approaching each other or the direction away from each other by the driving force. The covered electric wire W supplied by the pair of clamps 14a, 14b
Clamp.

A slide base 16 is erected on the base 10 and a guide shaft 17 for a cutter is supported on the slide base 16. This cutter guide shaft 17
, A pair of holders 18a, 18b are slidably attached to the pair of holders 18a, 18b, respectively, and a pair of cutting blades 19a, 19b and a pair of peeling blades 20a,
20b is fixed.

The pair of cutting blades 19a and 19b and the pair of peeling blades 20a and 20b
And a pair of clamps 14a, 14b together by one driving force.
Displaced in the direction approaching or away from,
It is configured such that it can be displaced in the direction approaching or separating from each other by the driving force of the servo motor 22 for contact / separation. With the pair of cutting blades 19a and 19b and the pair of stripping blades 20a and 20b, the terminal portion of the covered electric wire W is cut and the coated portion of the terminal portion after cutting is stripped.
The covered electric wire W is composed of a conductive core portion and an insulating covering portion covering the outer periphery thereof, and is sequentially conveyed to a cutting and peeling device by a conveying means (not shown).

The inspection means B has a light source 25 and a camera 26 as an imaging means. The light source 25 includes a pair of clamps 1.
It is arranged below the covered electric wire W clamped at 4a and 14b, and obliquely below, not directly below. As shown in detail in FIG. 4, the light source 25 has an illumination plate 27 disposed on one surface of a light source case 25a, and irradiates light through the illumination plate 27. Then, the light source 25 obliquely interposes the base 10 with the base 10 via the bracket 28 so that the optical axis direction of the irradiation light is set to the terminal side of the covered electric wire W, that is, to irradiate light to the terminal side of the covered electric wire W. Fixed.

As shown in detail in FIG. 5, the surface of the illumination plate 27 is formed as an inclined surface 27a which is inclined downward toward the outer peripheral end with the center ridge line t as a boundary. The side is also configured as an inclined surface 27b.

The camera 26 includes a pair of clamps 14a, 1
4b, above the insulated wire W clamped at 4b, and
The light source 25 is disposed diagonally above and on the opposite side. That is, the light source 25 and the camera 26 are arranged at positions facing each other by 180 degrees with respect to the terminal side of the covered electric wire W. The camera 26 is fixed to the camera base 11a via a bracket 29 with the direction as an imaging direction in order to image the terminal side of the insulated wire W. Camera base 11
a is integrally fixed to the upper part of the fixed base 11. An anti-vibration material (not shown) is interposed on the camera 26 contact surface side of the bracket 29, and the camera 26 is fixed to the camera base 11a on the apparatus body side via the anti-vibration material.

The video signal captured by the camera 26 is output to an image processing device 30 as shown in FIG. 6, and the image processing device 30 analyzes the video signal to determine the shape of the terminal portion of the covered electric wire W. Is obtained. The image processing device 30 has a wire type,
The data such as the size and the stripped length is supplied, and the image processing device 30 compares the registered data with the analysis data from the camera 26 and determines whether the covered portion of the covered electric wire W is at a predetermined position from the end of the covered electric wire W. It is determined whether or not it has been properly removed. If it is determined to be “good”, processing to the next step is permitted, and if it is determined to be “bad”, a message indicating that fact is displayed on the monitor 32 and processing for not performing processing to the next step is performed. .

Next, the operation of the above configuration will be described. When the insulated wire W is supplied to the cutting and peeling device by a conveying means (not shown), the pair of clamps 14a and 14b move in directions approaching each other due to the driving force of the clamp driving cylinder 15 to move the terminal portion of the insulated wire W. Clamp. Next, the servomotor 21 for the axial direction and the servomotor 2
2, the pair of cutting blades 19a and 19b cut the end portion of the insulated wire W to a predetermined length, and the pair of stripping blades 2
0a and 20b cut off the covered portion of the covered electric wire W at a predetermined position from the terminal and peel the skin.

Next, while being illuminated by the light source 25, the camera 26 captures an image of the terminal portion of the insulated wire W, and a pass / fail decision is made by analyzing the video signal. Then, only non-defective products are conveyed to the next process, and defective products are not conveyed, thereby improving quality.

In other words, in this cutting and stripping apparatus, the cutting and stripping operation of the covered electric wire W is performed by the cutting and stripping means A and the inspection is performed by the inspection means B. Therefore, it is not necessary to provide an inspection apparatus at another position. Absent. Therefore, space is saved in the entire system, and the cost is reduced by reducing the number of parts in the entire system.

In the above operation process, the covered portion cut off from the terminal portion of the covered electric wire W falls downward. However, since the camera 26 is disposed above the terminal portion of the insulated wire W, falling objects including the covering portion cut off from the terminal portion of the insulated wire W do not hit the camera 26 and the camera 26 is expensive. Can prevent damage to the camera 26,
It is possible to prevent shooting obstruction by falling objects. The light source 25 and the camera 26 are located symmetrically with respect to the terminal portion of the insulated wire W.
Are arranged, the contour of the terminal portion of the insulated wire W can be clearly photographed, and high-precision inspection can be performed.

Further, since the light source 25 is not located immediately below the end portion of the insulated wire W, there is a low probability that the covered portion cut off from the end portion of the insulated wire W falls on the light source 25, which causes obstruction to lighting and photographing. There is little possibility and a good shooting environment can be obtained. If the covered portion cut off from the terminal portion of the covered electric wire W falls on the light source 25, the surface of the lighting plate 27 is the inclined surfaces 27a and 27b.
Rolls 7a and 27b fall down, and the cut-out covered portion does not appear as an image, so that a good shooting environment can be maintained.

Further, the camera 26 is a vibration-proof material (not shown).
Is supported by the camera base 11a on the apparatus main body side through the device, so that the vibration generated when the sheathed wire W is cut or peeled off is attenuated by the vibration isolator, so that the camera 26 can be mounted. It is not necessary to arrange the position far away from the cutting and peeling means A. That is, the mounting position of the camera 26 can be brought closer to the cutting and peeling means A, and the space can be saved. In addition, since the vibration generated when the sheathed wire W is peeled off or the like is attenuated at the portion of the vibration isolator, it is possible to sufficiently prevent the camera 26 from breaking down due to the vibration.

The driving sources for the cutting and peeling operation are the servomotor 21 for the axial direction and the servomotor 22 for the contact and separation, that is,
Since the servo motor has a small vibration, the generation of the vibration itself is suppressed, and the camera 26 can be sufficiently prevented from being broken down by the vibration.

[0033]

As described above, according to the first aspect of the present invention, there is provided a cutting and stripping means for cutting a terminal portion of a covered electric wire, cutting off the covered portion and peeling the cut portion, and cutting the covered electric wire. And the inspection means for inspecting whether or not the peeling has been performed properly are incorporated in the same device, and the inspection is performed simultaneously with the cutting and peeling operation. Since the operation is performed and the inspection is performed by the inspection means, there is no need to provide an inspection device at a separate position, so that the system as a whole is space-saving and the system as a whole is reduced in cost by reducing the number of parts. In addition, since only non-defective products are transported to the next step, the quality is improved.

According to a second aspect of the present invention, there is provided the apparatus for cutting and stripping a covered electric wire according to the first aspect, wherein the inspection means comprises:
A light source that is disposed below the covered electric wire and irradiates light to a terminal portion of the covered electric wire, and is disposed above the covered electric wire on the opposite side to the light source and photographs a terminal portion of the covered electric wire. In addition to the effect of the first aspect of the present invention, since the imaging means is provided above the terminal portion of the covered electric wire, the covering portion cut off from the terminal portion of the electric wire with respect to the imaging means. And the light source and the imaging means are arranged symmetrically with respect to the end of the insulated wire, so that the contour of the end of the insulated wire can be clearly photographed. Inspection of accuracy is possible.

According to a third aspect of the present invention, in the apparatus for cutting and stripping an insulated wire according to the second aspect, the position of the light source disposed below the insulated wire is a terminal portion of the insulated wire. And the position of the imaging means disposed obliquely above the insulated wire is obliquely upward with respect to a terminal portion of the insulated wire. Since the light source is not located immediately below the end portion of the insulated wire, there is a low probability that the covered portion cut off from the end portion of the wire will fall on the light source, and there is little possibility of obstruction to lighting or photographing.

According to a fourth aspect of the present invention, there is provided the apparatus for cutting and stripping a covered electric wire according to the second or third aspect, wherein the surface of the illumination plate of the light source is downwardly moved from a central portion to an outer peripheral end. In addition to the effect of the invention of claim 2 or 3, in addition to the effect of the invention according to claim 2 or 3, when the covering portion cut off from the terminal portion of the electric wire falls to the light source, the slope of the surface of the lighting plate is changed. Because it rolls down and falls, a good shooting environment can be maintained. According to a fifth aspect of the present invention, in the apparatus for cutting and stripping a covered electric wire according to any one of the first to fourth aspects, the imaging means is supported on the apparatus main body via a vibration isolator. In addition to the effects of the first to fourth aspects of the present invention, since the vibration generated at the time of the stripping operation of the covered electric wire or the like is attenuated at the portion of the vibration isolating material, the mounting position of the imaging means is brought closer to the cutting stripping means. Therefore, it is possible to save space and sufficiently prevent the imaging unit from being damaged by vibration.

[Brief description of the drawings]

FIG. 1 is a front view of an apparatus for cutting and stripping a covered electric wire according to an embodiment of the present invention.

FIG. 2 is a right side view of the insulated wire stripping apparatus according to one embodiment of the present invention.

FIG. 3 is a left side view of the apparatus for cutting and stripping a covered electric wire according to an embodiment of the present invention.

FIG. 4 is a front view of a light source according to an embodiment of the present invention.

FIG. 5 is a perspective view of an illumination plate of the light source according to the embodiment of the present invention.

FIG. 6 is a schematic circuit block diagram of an inspection means of the cutting and peeling apparatus according to one embodiment of the present invention.

FIG. 7 is a schematic configuration diagram of an image processing apparatus which is a conventional inspection apparatus.

[Explanation of symbols]

 Reference Signs List A Cutting skin removing means B Inspection means W Insulated wire 25 Light source 26 Camera (imaging means) 27 Illumination plates 27a, 27b

Claims (5)

[Claims] 1. An end portion of a covered electric wire is cut into a predetermined length,
Cutting and stripping means for cutting and peeling the covered portion of the covered wire W at a predetermined position from the terminal; and whether or not the covered portion of the covered wire is properly removed at a predetermined position from the terminal of the covered wire. A stripping and stripping apparatus for a covered electric wire, comprising: an inspecting means for inspecting the stripped wire, wherein the cutting and stripping means and the inspection means are incorporated in the same apparatus, and the inspection is performed simultaneously with the cutting and stripping operation. A device for cutting and stripping coated electric wires. 2. The apparatus for cutting and stripping a covered electric wire according to claim 1, wherein the inspection means is arranged below the covered electric wire, and irradiates light to a terminal portion of the covered electric wire; An apparatus for cutting and stripping an insulated wire, comprising: an image pickup means arranged above the insulated wire opposite to the light source and for photographing a terminal portion of the insulated wire. 3. The apparatus for cutting and stripping a covered electric wire according to claim 2, wherein the position of the light source disposed below the covered electric wire is:
The position of the imaging unit, which is obliquely downward with respect to the terminal portion of the covered electric wire and is disposed above the covered electric wire,
An insulated stripping apparatus for an insulated wire which is obliquely upward with respect to a terminal portion of the insulated wire. 4. The apparatus according to claim 2, wherein the surface of the lighting plate of the light source is formed as an inclined surface that is inclined downward from a central portion toward an outer peripheral end. An apparatus for cutting and stripping a covered electric wire, comprising: 5. The coated wire cutting and stripping apparatus according to claim 1, wherein said imaging means is supported on a device main body side via a vibration-proof material. Cutting and peeling equipment.