US 12,105,030 B2
Automatic detecting device for detecting flaws on surface of camshaft
Dongyun Wang, Jinhua (CN); Xiangxiang Wang, Jinhua (CN); Chungeng Zhu, Jinhua (CN); Jinjun Shao, Jinhua (CN); and Xiang Sun, Jinhua (CN)
Assigned to ZHEJIANG NORMAL UNIVERSITY, Jinhua (CN)
Filed by ZHEJIANG NORMAL UNIVERSITY, Jinhua (CN)
Filed on Sep. 18, 2022, as Appl. No. 17/947,124.
Claims priority of application No. 202111156842.2 (CN), filed on Sep. 30, 2021.
Prior Publication US 2023/0116319 A1, Apr. 13, 2023
Int. Cl. G01N 21/952 (2006.01)
CPC G01N 21/952 (2013.01) 20 Claims
OG exemplary drawing
 
1. An automatic detecting device for detecting flaws on a surface of a camshaft, comprising:
a framework;
a working platform mounted on the framework,
wherein the working platform comprises a main working platform and a fixed platform, and the fixed platform comprises a fixed platform plate, a fixed platform support and a fixed platform baseboard connected in sequence from top to bottom, and the fixed platform plate is disposed above the main working platform; and
the main working platform is provided with a first working position, a second working position, a third working position and a fourth working position, and a first through hole, a second through hole, and a third through hole are disposed at the second working position, the third working position and the fourth working position of the main working platform of the main working platform, respectively,
a rotating platform rotatably connected to the working platform,
wherein the rotating platform is disposed between the fixed platform plate and the main working platform, the fixed platform support extends through a center hole of the rotating platform, and a gap is provided between the fixed platform support and an inner wall of the center hole; and,
a fourth through hole, a fifth through hole, a sixth through hole and a seventh through hole are provided at positions of the rotating platform corresponding to the second working position, the third working position, the fourth working position and the first working position, respectively;
a first rotating elevator mechanism disposed on the framework, wherein the first rotating elevator mechanism successively extends through the first through hole and the fourth through hole corresponding to the second working position, and is configured for elevating and rotating a test piece placed at the second working position;
a first visual module mounted on the working platform, which is configured for shooting surface morphologies of the test piece placed at the second working position;
wherein the first visual module comprises a first illumination member, a second illumination member, a third illumination member, a first camera, a second camera, a third camera and a fourth camera,
the first illumination member is disposed at an external side of the second working position, the second illumination member is disposed at an internal side of the second working position, the third illumination member is disposed above the second working position,
the third illumination member comprises an inner circle-shaped light and an outer circle-shaped light, the inner circle-shaped light and the outer circle-shaped light are coaxially disposed, the inner circle-shaped light is disposed inside the outer circle-shaped light, and a center point of the inner circle-shaped light and a center point of the fourth through hole are located along a first circumference;
the first camera is disposed above a hollow portion of the inner circle-shaped light and towards the second working position, the second camera is located above a gap between the inner circle-shaped light and the outer circle-shaped light and towards the second working position, the third camera is disposed at the external side of the second working position and towards the second working position, and the fourth camera is disposed at the internal side of the second working position and towards the second working position;
an elevator mechanism mounted on the framework, wherein the elevator mechanism successively extends through the second through hole and the fifth through hole corresponding to the third working position, and is configured to elevate a test piece placed at the third working position;
an overturning mechanism disposed on the working platform, wherein the overturning mechanism is configured for overturning the test piece placed at the third working position;
a second rotating elevator mechanism mounted on the framework, wherein the second rotating elevator mechanism successively extends through the third through hole and the sixth through hole corresponding to the fourth working position, and is configured to elevate and rotate a test piece placed at the fourth working position;
a second visual module disposed on the working platform and configured for shooting surface morphologies of the test piece placed at the fourth working position;
wherein the second visual module comprises a fourth illumination member, a fifth illumination member, a fifth camera, a sixth camera and a seventh camera;
the fourth illumination member is disposed at an external side of the fourth working position, the fifth illumination member is disposed above the fourth working position,
the fifth illumination member is a three-color light set comprising a first circle-shaped light, a second circle-shaped light and a third circle-shaped light, the first circle-shaped light, the second circle-shaped light and the third circle-shaped light are successively disposed in sequence from top to bottom, and the first circle-shaped light, the second circle-shaped light and the third circle-shaped light are coaxially disposed from the inside out,
the fifth camera is disposed at the external side of the fourth working position and towards the fourth working position, the sixth camera is disposed at an internal side of the fourth working position and towards the fourth working position, and the seventh camera is disposed above a hollow portion of the first circle-shaped light and towards the fourth working position; and
a plurality of locating members disposed on the rotating platform, and configured for placing the test piece.