- 专利标题: Automatic circular saw tooth inspection system and method
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申请号: US09625629申请日: 2000-07-26
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公开(公告)号: US06462811B1公开(公告)日: 2002-10-08
- 发明人: James P. Turner , Salvatore R. Trinchera , Charles H. Zierdt
- 申请人: James P. Turner , Salvatore R. Trinchera , Charles H. Zierdt
- 主分类号: G01N2100
- IPC分类号: G01N2100
摘要:
A system for inspecting first and second surfaces of a cutting member, such as a tooth of a carbide tooth circular saw blade, includes a support for carrying the cutting member, the cutting member being movable relative to the support to position the surfaces to be inspected within an inspection zone. First and second video cameras mounted on the apparatus relative to the inspection zone provide output signals representative of the images of the first and second surfaces, respectively. A computer responsive to the output signals generated by the first and second video cameras analyzes the output signals and calculates selected attributes of the surfaces presented for inspection. A frame grabber captures video images of the surfaces. A first video monitor coupled to the computer displays images of the surfaces being inspected while a second video monitor coupled to the computer displays graphical data relating to selected geometrical attributes of the surfaces. The system utilizes the video image data and an appropriate algorithm to control a servo motor to accurately position the cutting member in the field of view. Upper and lower semicircular light transmitters, coupled to a light source, surround the inspection zone to uniformly illuminate the zone and provide a sharp contrast between the surfaces under inspection and the background. Also disclosed is a method for inspecting first and second surfaces of a cutting member, such as a tooth of a carbide tooth circular saw, using first and second video cameras, respectively, the method comprising the steps of moving the cutting member to position the first and second surfaces within an inspection zone, providing electrical video signals from the first video camera representative of the image of the first surface presented for inspection, storing a frame of said video signals provided by the first video camera, providing electrical video signals from the second camera representative of the image of the second surface presented for inspection, storing a frame of said video signals provided by the second camera, and displaying the stored frames.
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