KR101924927B1 - Door hanger clamp testing system of the car and method thereof - Google Patents

Abstract

The present invention relates to a door hanger clamp inspection system and a method for installing a FRT / RR scale and a needle according to a vehicle type to minimize a deviation caused by a scattering of a clamp position and a stop position of an FRT / RR door hanger An entrance detection sensor for detecting the entry of the door hanger when the door hanger starts to transfer the door; A vision camera for photographing the clamp position of the door hanger; A vehicle type photo sensor for checking the vehicle type of the door; A scale attached to said door hanger clamp to eliminate the effects of said door hanger and door hanger clamp location scatter; A needle mounted on the door hanger clamp and indicating an actual clamp position according to the type of the vehicle by a position on the scale; A vision controller for analyzing the photographed data and reading a normal / abnormal state of a door hanger clamp position for each vehicle type; The state of the door hanger clamp is stored and managed, and when the door hanger clamp is in an abnormal state, an operator call is made to the door hanger clamp, And a PLC panel for lighting a beacon for the door hanger clamp inspection system of a vehicle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door hanger clamp inspection system,

The present invention relates to a system and method for testing a door hanger clamp of an automobile. More particularly, the FRT / RR scale and needle for each vehicle are installed in a door hanger clamp, And more particularly, to a door hanger clamp inspection system and a method thereof for an automobile which minimizes occurrence of a deviation due to scattering of a clamp position and stop position scattering.

Generally, automobiles are produced by assembling 2 ~ 30,000 parts through several assembling processes.

In particular, the bodywork is the first step in the automobile manufacturing process. After the body panel is produced in the press process, it is transferred to the body shop, and the body parts are assembled to form a white body (B.I. W) body.

After completion of the painting process, the finished body is completed by assembling the engine, transmission, interior and exterior materials at the factory factory. After completion of the installation process of the floor, door, trunk lid, hood and fender, do.

In the assembling process of the automobile, the door is clamped to the door hanger for the automobile, and the state of the clamp is inspected.

Fig. 1 shows a conventional door hanger clamp inspection system for a vehicle.

When the door is started to be conveyed by the door hanger 10, the entry detection sensor 20 detects the hanger entry / exit state and transfers the hanger detection information to the PLC panel 50.

The door hanger clamp 30 also transmits a clamp confirmation signal to the PLC panel 50 and the vehicle type confirmation photosensor 40 transmits the vehicle type confirmation information to the PLC panel 50.

When door door movement is started by the door hanger 10, the position of the clamp lever is photographed by the vision camera 60 to generate clamp confirmation information. The clamp confirmation information thus generated is sent to the vision controller 70 And transferred to the PLC panel 50.

The PLC panel 50 manages the entrance / exit of the vehicle and information based on the input information, and controls the clamp inspection information and the clamp confirmation input / output.

Subsequently, based on the inspection result of the clamp, the warning light 80 is driven to cause the clamp normal / abnormal lamp to be turned on or the clamp normal / abnormal alarm to be generated, and the operator is called when the clamp is abnormal, .

On the other hand, a conventional technique for detecting a clamping abnormality of a door hanger for a vehicle is disclosed in Patent Document 1 below.

The prior art disclosed in Patent Document 1 is a CCD camera for hanger number recognition for photographing image data of a hanger serial number attached to one side of the door hanger at a side of a transfer line of a door hanger moving along the hanger rail. A CCD camera for photographing an image of the clamping unit corresponding to each of the clamping units for clamping the door on the door hanger; A back lighting unit installed on a rear surface of the conveyance line of the door hanger so as to enhance the discrimination of the image captured by the CCD camera for hanger number identification and the CCD camera for inspection section photographing; And a controller for analyzing and reading the image data photographed by the CCD camera for hanger number recognition and the CCD camera for inspection part photographing.

With this configuration, the image data of the door hanger clamping unit is taken out to determine whether or not the clamping abnormality is present.

Korean Unexamined Patent Application Publication No. 10-2004-0036127 (published on Apr. 30, 2004) (Clamping anomaly detection system and method thereof for vehicle door hanger)

However, in the above conventional art, the clamp state inspection using the position of the clamp lever using the vision camera apparatus has been performed. In such a conventional system, a deviation occurs due to dispersion of the clamp position and scattering of the stop position of the FRT / RR door hanger , Causing a problem of falling down during the transportation of the door.

Particularly, when a door crash occurs during the door transportation, the operation line is stopped and the readability of the clamped state is lowered, and maintenance and operator's calls are frequently made even though the state is in a normal state, causing unnecessary M / H loss. do.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an FRT / RR door hanger and a FRT / And it is an object of the present invention to provide a door hanger clamp inspection system and a method thereof for an automobile which minimizes occurrence of a deviation due to scattering and stop position scattering of a clamp position.

According to an aspect of the present invention, there is provided a system for inspecting a door hanger clamp of an automobile, the system comprising: an entrance sensor for sensing entry of a door hanger when a door is transferred by the door hanger; A vision camera for photographing a clamp position of the door hanger; A vehicle type photo sensor for confirming a vehicle type of a door transported by the door hanger; A scale attached to said door hanger clamp to eliminate the effects of said door hanger and door hanger clamp location scatter; A needle provided on the door hanger clamp for displaying an actual clamp position according to the type of the vehicle by a position on the scale; A vision controller for analyzing data photographed by the vision camera and reading a normal / abnormal state of a door hanger clamp position for each vehicle type; The control unit stores and manages the entry detection signal of the door hanger, the vehicle type confirmation signal, the normal / abnormal state information of the door hanger clamp position generated by the vision controller, determines the state of the door hanger clamp based on the plurality of information, And a PLC panel for lighting a warning light for an operator call if the hanger clamp is in an abnormal state.

Wherein the vision controller identifies the door hanger clamp state based on the clamp position information photographed by the vision camera and the scale and needle attached to the door hanger clamp.

According to another aspect of the present invention, there is provided a method for inspecting a door hanger clamp of an automobile, the method comprising the steps of: (a) detecting entrance of a door hanger when a door is transferred by the door hanger; (b) clamping the door hanger to a door hanger clamp; (c) confirming the vehicle type of the door transferred by the door hanger; (d) photographing the door hanger clamp; (e) analyzing the photographed clamp data based on needle information for displaying an actual clamp position for each type of vehicle by a position placed on a scale and a scale for eliminating door hanger and door hanger clamp position scattering effects; And (f) determining a normal / abnormal state of the door hanger clamp position for each vehicle type based on the analysis result, and generating an alarm when the door hanger clamp is abnormal.

In the step (e), the clamp position information photographed by the vision camera and the normal or abnormal state of the door hanger clamp state based on the scale and the needle attached to the door hanger clamp are analyzed.

According to the present invention, by installing a FRT / RR scale and needle according to the type of the vehicle on the door hanger clamp, it is possible to minimize the occurrence of deviation due to the scattering of the clamp position and the stop position of the FRT / RR door hanger, There is an effect that the risk of falling during the transportation of the door can be prevented in advance.

Further, according to the present invention, it is possible to prevent the movable line from being stopped due to the prevention of the fall of the door, thereby preventing the maintenance and the call of the operator, thereby preventing the loss of M / H.

1 is a schematic diagram of a door hanger clamp inspection system using a conventional vision system,
2 is a block diagram of a door hanger clamp inspection system for a vehicle according to the present invention.
Fig. 3 is an illustration showing a scale and a needle separated from each other installed in a door hanger clamp in the present invention, Fig.
FIG. 4 is a diagram illustrating an example of a process of analyzing a clamp position using scale and needle information in the present invention,
5 is a flowchart illustrating a door hanger clamp inspection method of a vehicle according to the present invention.
Fig. 6 is a front view of the scale and the needle shown in Fig. 4

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A door hanger clamp inspection system and method of a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram of a door hanger clamp inspection system for a vehicle according to a preferred embodiment of the present invention.

The door hanger clamp inspection system for a vehicle according to the present invention includes a door hanger 10, an entrance detection sensor 20, a door hanger clamp 30, a vehicle type photo sensor 40, a vision camera 60, a PLC panel 110 A vision controller 120, a beacon light 80, a scale 130, and a needle 140.

When the entrance of the door is started by the door hanger 10, the entrance detection sensor 20 senses entrance of the door hanger and transmits the detection signal to the PLC panel 110.

The door hanger clamp 30 functions to clamp the door hanger 10 and the vehicle type photosensor 40 confirms a vehicle type of a door transported by the door hanger 10.

In addition, the vision camera 60 photographs the clamp position of the door hanger and transmits it to the vision controller 120.

The scale 130 is attached to the door hanger clamp 30 and removes the influence of the door hanger 10 and the door hanger clamp position dispersion. The scale 130 is attached to the door hanger clamp 30, 140 serve to display the actual clamp position for each vehicle type based on the position moved and set in the scale 130.

The vision controller 120 analyzes data photographed by the vision camera 60 and reads a normal / abnormal state of a door hanger clamp position by vehicle model.

The PLC panel 110 stores and manages the entrance detection signal of the door hanger, the vehicle type confirmation signal, the normal / abnormal state information of the door hanger clamp position generated by the vision controller 120, And judges the state of the door hanger clamp. When the door hanger clamp is in an abnormal state, it serves to light the warning light 80 for an operator call.

The operation of the door hanger clamp inspection system of the vehicle according to the present invention constructed as above will be described in detail with reference to FIGS. 2 to 6 attached hereto.

First, when the FRT / RR door starts to be conveyed by the door hanger 10 and enters the inspection position, the entrance detection sensor 20 senses entry of the door hanger 10 and transmits the detection signal to the PLC panel (110).

When it is detected that the door hanger has entered the normal position, the PLC panel 110 transmits a signal to the door hanger clamp 30 that the door hanger has entered the door, and the door hanger clamp 30 receives the door hanger Clamp.

Then, when the door hanger clamping is completed, the vehicle type confirmation photo sensor 40 confirms the vehicle type of the door to be transported by the door hanger 10 (confirms the vehicle type according to the mixture of three vehicles), and outputs the result to the PLC panel 111).

The PLC panel 110 confirms the vehicle type based on the vehicle type confirmation signal, and then drives the vision camera 60 to photograph the door hanger clamp 30.

When the driving signal of the PLC panel 110 is received through the vision controller 120, the vision camera 60 photographs the clamp position of the door hanger and transmits the captured image to the vision controller 120.

The vision controller 120 analyzes the door hanger clamp photographing data photographed by the vision camera 60 to read the normal / abnormal state of the door hanger clamp position for each vehicle type, and outputs the read result to the PLC panel 110 .

3 and 4 and 6, in order to eliminate the influence of the position scattering of the door hanger 10 and the door hanger clamp 30, the door hanger clamp And a scale 130 is attached to the door hanger 30. The door hanger clamp 30 is equipped with a needle 140 for displaying the actual clamp position according to the type of the vehicle moved by the scale 130.

Therefore, when the door hanger clamp 30 is photographed, the scale 130 and the needle 140 are also taken together for the clamp position confirmation.

The vision controller 120 compares the clamp position information photographed by the vision camera 60 with the scale 130 attached to the door hanger clamp 30 and the position of the needle 140 placed on the door hanger clamp 30, (30). That is, it is determined whether the state of the door hanger clamp 30 is normal or abnormal.

The thus determined door hanger clamp analysis result is transmitted to the PLC panel 110.

The PLC panel 110 stores and manages the entrance detection signal of the door hanger, the vehicle type confirmation signal, and the normal / abnormal state information of the door hanger clamp position generated by the vision controller 120. Next, the state of the door hanger clamp received by the vision controller 120 is determined. If the door hanger clamp is in an abnormal state, the warning light 80 for calling an operator is turned on to prevent the door from crashing.

The present invention can precisely analyze the state of the clamp using the mounted scale and the needle, and thus it is possible to prevent the loss of the M / H caused by maintenance and frequent call of the worker even when the clamp is in a normal state unnecessarily It will be possible.

5 is a flowchart showing a method of inspecting a door hanger clamp of an automobile. Referring to FIG. 5, (a) steps (S10 to S20) b) Clamping the door hanger 10 to the door hanger clamp 30, c) Checking the vehicle type of the door transferred by the door hanger 10, d) (E) scaling the photographed clamp data to a scale 130 in a role of removing door hanger and door hanger clamp position scattering effects, (S60), based on the information of the needles 140 for displaying the actual clamp position for each vehicle type, and (f) determining the normal / abnormal state of the location of the door hanger clamp 30 for each vehicle type based on the analysis result, And generating an alarm when the clamp is abnormal (S70).

In the step (e), the clamp position information photographed by the vision camera 60 and the normal and abnormal states of the door hanger clamping state based on the scale 130 and the needle 140 attached to the door hanger clamp 30 Analysis is desirable.

The door hanger clamp inspection method of the automobile according to the present invention will be described in detail as follows.

First, in step S10, the FRT / RR door starts to be conveyed by the door hanger 10 and enters the inspection position. In step S20, the entrance detection sensor 20 senses entry of the door hanger 10, And transmits a sensing signal to the PLC panel 110.

When it is detected in step S30 that the door hanger has entered a normal position, the PLC panel 110 transmits a signal to the door hanger clamp 30 that the door hanger has entered the door, and the door hanger clamp 30 receives the door hanger clamp Clamp the door hanger.

When the door hanger clamping is completed, the vehicle type confirmation photo sensor 40 confirms the vehicle type of the door to be transported by the door hanger 10 (confirms the vehicle type in accordance with the mixture of three vehicles) at step S40, To the PLC panel 111.

The PLC panel 110 checks the vehicle type on the basis of the vehicle type confirmation signal in step S50 and drives the vision camera 60 to photograph the door hanger clamp 30. [

When the driving signal of the PLC panel 110 is received through the vision controller 120, the vision camera 60 photographs the clamp position of the door hanger and transmits the captured image to the vision controller 120.

The vision controller 120 analyzes the door hanger clamp shooting data photographed by the vision camera 60 in step S60 to read the normal / abnormal state of the door hanger clamp position for each vehicle type, and outputs the read result to the PLC panel 110).

3 and 4 and 6, in order to eliminate the influence of the position scattering of the door hanger 10 and the door hanger clamp 30, the door hanger clamp And a scale 130 is attached to the scale 130. A needle 140 is mounted on the scale 130 to indicate the actual clamp position according to the type of the vehicle.

Therefore, when the door hanger clamp is photographed, the scale and the needle are also taken together to confirm the clamp position.

The vision controller 120 then compares the clamp position information photographed by the vision camera 60 with the positions of the scale 140 attached to the door hanger clamp 30 and the needle 140 placed on the scale 130 , The door hanger clamp state is determined. That is, it is determined whether the door hanger clamp state is normal or abnormal.

The thus determined door hanger clamp analysis result is transmitted to the PLC panel 110.

In step S70, the PLC panel 110 stores and manages the entrance / exit signal of the door hanger, the vehicle type confirmation signal, and the normal / abnormal state information of the door hanger clamp position generated by the vision controller 120. Next, the state of the door hanger clamp received by the vision controller 120 is determined. If the door hanger clamp is in an abnormal state, the warning light 80 for calling an operator is turned on to prevent the door from crashing.

The present invention can precisely analyze the state of the clamp using the mounted scale and the needle, and thus it is possible to prevent the loss of the M / H caused by maintenance and frequent call of the worker even when the clamp is in a normal state unnecessarily It will be possible.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is obvious to those who have.

The present invention is applied to a technique for measuring and accurately analyzing the state of a door hanger clamp in an automobile.

10: Door hanger 20: Entry detection sensor
30: Door Hanger Clamp 40: Vehicle Type Photo Sensor
50, 110: PLC panel 60: vision camera
80: Beacon light 70, 120: Vision controller
130: Scale 140: Needle

Claims (4)

A system for inspecting the condition of a door hanger clamp of an automobile,
An entrance detection sensor for detecting the entrance of the door hanger when the door hanger starts to be transferred by the door hanger;
A vision camera for photographing a clamp position of the door hanger;
A vehicle type photo sensor for confirming a vehicle type of a door transported by the door hanger;
A scale attached to the door hanger clamp to eliminate the effects of the door hanger and door hanger clamp location scatter;
A needle provided on the door hanger clamp for displaying an actual clamp position according to the type of the vehicle by a position on the scale;
A vision controller for analyzing data photographed by the vision camera and reading a normal / abnormal state of a door hanger clamp position for each vehicle type;
The control unit stores and manages the entry detection signal of the door hanger, the vehicle type confirmation signal, the normal / abnormal state information of the door hanger clamp position generated by the vision controller, determines the state of the door hanger clamp based on the plurality of information, And a PLC panel for lighting a warning light for an operator call when the hanger clamp is in an abnormal state,
Wherein the vision controller determines a door hanger clamp state based on the clamp position information photographed by the vision camera and the scale and needle attached to the door hanger clamp.
delete CLAIMS 1. A method of inspecting a door hanger clamp of an automobile,
(a) detecting the entrance of a door hanger when the door is started to be transferred by the door hanger;
(b) clamping the door hanger to a door hanger clamp;
(c) confirming the vehicle type of the door transferred by the door hanger;
(d) photographing the door hanger clamp;
(e) analyzing the photographed clamp data based on needle information indicating actual clamp positions for each vehicle type by a position on a scale and a scale of a role of removing door hanger and door hanger clamp position scattering effects; and
(f) determining a normal / abnormal state of a door hanger clamp position for each vehicle type based on the analysis result, and generating an alarm when the door hanger clamp is abnormal,
Wherein the step (e) analyzes the clamp position information captured by the vision camera, the door scale attached to the door hanger clamp, and the normal or abnormal state of the door hanger clamp state based on the needle. Way.
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