CN112649890A

CN112649890A - Assembly detection device

Info

Publication number: CN112649890A
Application number: CN202011255514.3A
Authority: CN
Inventors: 王利鹏; 王成宏; 张继龙; 陈雷; 黄风菊; 徐国锋; 周俊
Original assignee: Wanfeng Meiruiding New Material Technology Co ltd
Current assignee: Wanfeng Meiruiding New Material Technology Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-04-13

Abstract

The utility model provides an assembly detection device, assembly detection device includes base, controller, robot, work frame, image collector, the controller with robot communication connects, the robot includes stiff end, free end, the stiff end is fixed in the base, the work frame with the free end of robot links to each other, image collector is fixed in the work frame. The assembly detection device identifies the part to be detected through the image collector, transmits the identified graphic signal to the graphic processing unit, compares the signal transmitted by the image collector with the preset signal by the graphic processing unit, and obtains a feedback result.

Description

Assembly detection device

Technical Field

The invention relates to the technical field of automobile parts, in particular to the technical field of automobile part assembly detection.

Background

In the manufacturing process of automobile parts, the production speed is high, the yield is high, and the quality of the production process is strictly controlled. In the process of production, assembly and operation, phenomena such as neglected assembly, wrong assembly and the like are inevitable to occur by a front-line manufacturer, so that the phenomena such as neglected assembly, wrong assembly and the like often occur in the assembly process of automobile parts, the neglected assembly and the wrong assembly of the parts enter subsequent procedures, even if the phenomena such as neglected assembly and wrong assembly are found before the automobile leaves a factory, the defects such as dismantling and reinstalling, large rework workload and the like are also inevitable, and therefore, the assembly process of the automobile parts needs to be detected after certain workload is carried out.

At present, the assembly of automobile parts mainly depends on manual visual inspection point inspection, and the point inspection mode has the defects of poor reliability, low efficiency and the like.

Disclosure of Invention

The invention aims to provide an assembly detection device.

In order to achieve the above purpose, the present invention provides the following technical solutions.

In a first aspect, the assembly detection device comprises a base, a controller, a robot, a working frame and an image collector, wherein the controller is in communication connection with the robot, the robot comprises a fixed end and a free end, the fixed end is fixed on the base, the working frame is connected with the free end of the robot, and the image collector is fixed on the working frame. Like this, assembly detection device passes through image collector and treats the test part discernment to the graphics processing unit is given with the figure signal transmission that the discernment obtained, and graphics processing unit compares the signal that image collector transmitted with preset signal, and reachs the feedback result, and this kind of technique of discerning through image collector compares with original manual identification, and part characteristic identification is accurate, and degree of automation is high, and detection range is big.

With reference to the first aspect, in a first possible implementation of the first aspect, the work frame includes a fixing member and a light supplement component, the image collector is fixed to the fixing member, the light supplement component is provided with a light supplement lamp, and the light supplement component can move axially relative to the image collector. Therefore, the signals acquired by the image acquisition device can be adjusted, and the accuracy of the whole detection result is improved.

With reference to the first embodiment of the first aspect, in a second possible embodiment of the first aspect, the working frame is provided with a guide hole, the working frame includes a guide rod, one end of the guide rod passes through the guide hole, and the other end of the guide rod is fixed to the light supplement component. Therefore, the accuracy of the relative movement of the light supplementing component and the image collector can be effectively improved through the arrangement of the guide rod and the guide hole, and the automatic programming is facilitated.

With reference to the second embodiment of the first aspect, in a third possible embodiment of the first aspect, the work frame includes a guide plate, the guide hole is opened in the guide plate, and the guide plate is fixed relative to the fixing member.

With reference to the third embodiment of the first aspect, in a fourth possible embodiment of the first aspect, a length direction of the guide rod is parallel to an axial direction of the image collector. Therefore, the change of the radial relative position of the light supplementing component and the image collector can be prevented.

With reference to any one of the first to fourth embodiments of the first aspect, in a fifth possible embodiment of the first aspect, the light supplement component is an annular structure, and an axis of the light supplement component coincides with an axis of the image collector. Therefore, the relative position of the light supplementing component and the image collector is determined, and control programming is facilitated.

With reference to the fifth embodiment of the first aspect, in a sixth possible embodiment of the first aspect, the number of the fill-in lamps is three or more, and the fill-in lamps are annularly disposed on the light filling member. Therefore, the brightness difference of all parts of the image information collected by the image collector can be smaller to a certain extent, and the detection accuracy is improved

With reference to the first aspect and any one of the first to fourth embodiments of the first aspect, in a seventh possible embodiment of the first aspect, the image collector is a CCD or a CMOS camera. The camera has high recognition rate and meets the requirement of assembly detection.

With reference to any one of the second to fourth embodiments of the first aspect, in an eighth possible embodiment of the first aspect, the light supplement component is an annular structure, the number of the guide holes is 2, and the number of the guide rods is 2. Like this, because light filling part is annular structure, the quantity of this kind of guiding hole and guide bar has the selection that sets up the simplest and most simple and convenient while has better stability.

Drawings

FIG. 1 is a schematic view of one embodiment of the assembly detection device of the present invention.

Fig. 2 is a partial schematic view of the assembly detection device shown in fig. 1.

Detailed Description

Specific embodiments will now be described in detail with reference to the accompanying drawings.

Herein, "communicatively connected" means that two parts can communicate signals.

Fig. 1 illustrates an assembly detection apparatus 10, which includes a controller 11, a rack 12, a base 13, a robot 14, a work frame 15, a fill-in light 16, and an image collector 17.

The frame 12 may be provided with a table or the like as necessary for the inspection work to be smoothly performed. The controller 11 is connected to the robot 14 in communication, so that the controller 11 can control the operation of the robot 14. The robot 14 can adjust the position of the image collector 17, on one hand, for complex part detection, image recognition and judgment are required to be carried out on a plurality of positions, and the robot 14 can adjust the position of the image collector 17 to realize multi-position image recognition and judgment; in addition, with the arrangement of the robot 14, if the assembly detection device is designed such that the detection platform and the identification part are separable, the robot 14 can be used to control the position adjustment of the image collector 17, so as to realize the assembly detection function of one assembly detection device 10 on a plurality of parts.

The base 13 is fixed to the frame 12.

The robot 14 includes a fixed end 141 and a free end 142, the fixed end 141 is fixed to the base 13, and the free end 142 is connected to the working frame 15.

The image collector 17 and the light supplement lamp 16 are fixed on the working frame 15. The position of the working frame 15 can be controlled by the motion of the robot 14, and the motion control of the robot 14 is controlled by the controller 11, so that it can be realized by automatic programming. The image collector 17 identifies the part to be detected, the image signal obtained by identification is transmitted to the image processing unit, the image processing unit compares the signal transmitted by the image collector with a preset signal and obtains a feedback result, and compared with the original manual identification, the technology for identifying through the image collector 17 has the advantages of accurate part feature identification, high automation degree and large detection range.

The working frame 15 includes a fixing member 151, a light supplement member 152, a guide plate 153, and a guide rod 154. Image collector 17 is fixed to fixing member 151. The guide plate 153 is fixed to the fixing member 151, and the guide plate 153 has a guide hole. One end of the guide rod 154 passes through the guide hole, and the other end is fixed to the light supplement unit 152. The number of the guide holes is 2, and the number of the guide rods 154 corresponds to the number of the guide holes. Due to the structural design of the guide rod 154 and the guide hole, the light supplementing component 152 can axially move relative to the image collector 17. When the image processing unit compares the signal of the image collector with the preset signal, an error in recognition often occurs due to the brightness of light. Light filling part 152 can be relative image collector 17 axial displacement, can make image collector 17 gather the signal that obtains and adjust, improves the rate of accuracy of whole testing result. Meanwhile, the light supplement component 152 can limit the collection range of the image collector 17, so that the light supplement component 152 can axially move relative to the image collector 17 and can also control the size of the collection range of the image collector, and more accurate image identification is realized.

The guide rod 154 has a length direction parallel to the axial direction of the image pickup element 17. Due to the arrangement of the guide rod 154 and the guide hole, the guide rod 154 is guided by the guide hole, and the length direction of the guide rod 154 is parallel to the axial direction of the image collector 17, so that the radial relative position of the light supplement component 152 and the image collector 17 can be prevented from being changed.

The light supplement unit 152 is provided with a light supplement lamp 16. The light supplement component 152 is annular, and the axis of the light supplement component 152 coincides with the axis of the image collector 17. The number of the light supplement lamps 16 is 3 or more, the light supplement lamps 6 are annularly arranged on the light supplement part 152, and the number of the light supplement lamps of the assembly detection device shown in fig. 1 is 4. The light supplement component 152 is annular, and the light supplement lamp 16 is annularly arranged on the light supplement component, so that the brightness difference of all parts of the image information collected by the image collector 17 is small to a certain extent, and the detection accuracy is improved.

The image collector 17 may employ a CCD or CMOS camera.

Of course, it should be noted that the assembly inspection device 10 may also include other devices necessary for assembly inspection, such as furniture, computer-based devices for implementing controls, and the like.

Claims

1. The utility model provides an assembly detection device, its characterized in that, assembly detection device includes base, controller, robot, work frame, image collector, the controller with robot communication connection, the robot includes stiff end, free end, the stiff end is fixed in the base, the work frame with the free end of robot links to each other, image collector is fixed in the work frame.

2. The assembly detection device according to claim 1, wherein the working frame comprises a fixing member and a light supplement component, the image collector is fixed on the fixing member, the light supplement component is provided with a light supplement lamp, and the light supplement component can axially move relative to the image collector.

3. The assembly detection device according to claim 2, wherein the working frame is provided with a guide hole, the working frame comprises a guide rod, one end of the guide rod penetrates through the guide hole, and the other end of the guide rod is fixed to the light supplement component.

4. The assembly detection device of claim 3, wherein the working frame comprises a guide plate, the guide hole is formed in the guide plate, and the guide plate is fixed relative to the fixing member.

5. The assembly detection device of claim 3, wherein a length direction of the guide bar is parallel to an axial direction of the image collector.

6. The assembly detection device according to any one of claims 2 to 5, wherein the light supplement component is of an annular structure, and an axis of the light supplement component coincides with an axis of the image collector.

7. The assembly detection device according to any one of claim 6, wherein the number of the fill-in lamps is three or more, and the fill-in lamps are annularly arranged on the light filling member.

8. The assembly detection device of any one of claims 1-5, wherein the image collector is a CCD or CMOS camera.

9. The assembly detection device according to any one of claims 3 to 5, wherein the light supplement component is of an annular structure, the number of the guide holes is 2, and the number of the guide rods is 2.