Visual guidance feeding method for automobile manufacturing production line

A visual guidance and automobile manufacturing technology, applied in the field of automobile manufacturing, can solve the problems of unreachable position accuracy, high position accuracy requirements, fast grasping speed, etc., to meet the production cycle, fast workpiece positioning speed, and high feeding efficiency Effect

Inactive Publication Date: 2018-12-18
GUANGZHOU RISONG HOKUTO AUTOMOTIVE EQUIP CO LTD
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Problems solved by technology

[0003] During the feeding process, due to the derivation of the car model, the feeding is prone to errors, and the robot is used for high-speed grabbing, which has a fast grabbing speed and high positional accuracy requirements. Manual teaching after the fixture and sensor positioning can not achieve the positional accuracy. requirements, and the incoming material on the front floor also has an angle rotation, which cannot be solved by the aforementioned positioning method

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  • Visual guidance feeding method for automobile manufacturing production line
  • Visual guidance feeding method for automobile manufacturing production line

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Embodiment Construction

[0023] The technical solutions will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0024] In automobile manufacturing and production, when the workpieces such as the front floor of the automobile come in, the materials are stacked and transported to the loading station by the feeding truck. Due to the large material frame of the material truck, the position of the workpiece in the material frame is free, and the direct use of a laser with high positioning accuracy but a small photographing range will cause the problem that the positioning hole is outside the photographing area. In order to enable the laser to capture the position of the positioning hole on the workpiece, before the fine positioning step, a rough positioning function is added to give the approximate offset position of the workpiece in the feeder (Δx 1 , Δy 1 , Δz 1 , ΔRx, ΔRz). The vision system sends the calculated deviation value to the robot, and ...

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Abstract

The invention discloses a visual guidance feeding method for an automobile manufacturing production line. According to the visual guidance feeding method, a skip is pushed to a feeding station, and acoarse positioning camera installed above the feeding station photographs; coarse deviation of a workpiece on the skip is judged according to the photographed result of the coarse positioning camera;a robot adjusts the position of a gripper according to the coarse deviation result; lasers mounted on the gripper photographs the corresponding feature points in sequence; precision deviation of the workpiece is judged according to the laser photographed results; and the robot adjusts the position of the gripper according to the precision deviation, then grapping is carried out, and feeding is completed. According to the visual guidance feeding method, a two-stage visual guidance method of camera coarse positioning-laser precise positioning is adopted, the stockpiling placement of front floorsof an automobile and the like is solved, the visual guidance feeding of the workpiece fed by the skip is used, the feeding process is highly intelligent and automated, the workpiece positioning speedis high, positioning is accurate, the feeding efficiency is high, the takt of the automobile manufacturing production line is met.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a visually guided feeding method for an automobile manufacturing production line. Background technique [0002] The front floor of the car is one of the main components of the car body. Due to the structure of the front floor, when the front floor comes in, the materials are piled up and transported to the loading station by the feeding truck. [0003] During the feeding process, due to the derivation of the car model, the feeding is prone to errors, and the robot is used for high-speed grabbing, which has a fast grabbing speed and high positional accuracy requirements. Manual teaching after the fixture and sensor positioning can not achieve the positional accuracy. requirements, and the incoming material on the front floor also has an angle rotation, which cannot be solved by the aforementioned positioning method. In order to ensure the correctness of the loading workp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/16
CPCB25J9/1697
Inventor 刘益谢炼雅张灿
Owner GUANGZHOU RISONG HOKUTO AUTOMOTIVE EQUIP CO LTD
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