US 12,343,817 B2
Adsorbable electromagnetic field auxiliary device for large components
Jianhua Yao, Zhejiang (CN); Liang Wang, Zhejiang (CN); Kejing Jiang, Zhejiang (CN); and Qunli Zhang, Zhejiang (CN)
Assigned to ZHEJIANG UNIVERSITY OF TECHNOLOGY, Zhejiang (CN)
Appl. No. 17/795,064
Filed by ZHEJIANG UNIVERSITY OF TECHNOLOGY, Zhejiang (CN)
PCT Filed Dec. 18, 2019, PCT No. PCT/CN2019/126340
§ 371(c)(1), (2) Date Feb. 6, 2023,
PCT Pub. No. WO2021/109256, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 201911220813.0 (CN), filed on Dec. 3, 2019.
Prior Publication US 2023/0152354 A1, May 18, 2023
Int. Cl. B23K 26/70 (2014.01)
CPC B23K 26/702 (2015.10) 5 Claims
OG exemplary drawing
 
1. An attachable electromagnetic field auxiliary device for large components, comprising:
an iron core (3) that can be attached to a component to be processed (1) with an integral rectangular frame including a pair of lateral sides and a pair of longitudinal sides, each lateral side being installed with an electromagnetic coil (2), the two electromagnetic coils (2) being connected in series, the N pole of the magnetic field of one of the two electromagnetic coils (2) pointing to the component to be processed (1) and the S pole of the other of the two electromagnetic coils (2) pointing to the component to be processed (1);
a laser head (5) configured to move in an inner space of the iron core (3);
a photoelectric sensor (4) that is installed on the longitudinal sides of the iron core (3), the photoelectric sensor (4) sensing the real-time longitudinal position of the laser head (5), a data output end of the photoelectric sensor (4) being connected to a central controller, the photoelectric sensor (4) comprising a photoelectric transmitter (401) and a photoelectric receiver (402) respectively installed on a corresponding one of the pair of longitudinal sides;
two screw movement devices (6), each screw movement device (6) being respectively provided at a corresponding one of the longitudinal sides of the iron core (3), the two screw movement devices (6) being symmetrically arranged, each screw movement device (6) comprising a motor (601), a base (602), a screw (603), and a slider (604), the screw (603) being connected to the iron core (3) through the base (602), the motor (601) driving the screw (603) to rotate to move the slider (604) along the corresponding longitudinal side of the iron core (3), an inner thread of the slider (604) being engaged with the screw (603), a control end of the motor (601) being connected to the central controller; and
two brush devices (7), each brush device (7) being respectively provided at a corresponding one of the longitudinal sides of the iron core (3), each brush device (7) comprising a brush head (701) that slides on the surface of the component to be processed (1) to form a directional electric field, a brush clamp (702) that is connected with a corresponding one of the sliders (604), and an elastic copper sheet (703) that is installed on the brush clamp (702), an end of the brush head (701) furthest away from the component to be processed (1) contacting the elastic copper sheet (703), the elastic copper sheet (703) keeping the brush head (701) in contact with the component to be processed (1) during movement of the corresponding slider (604),
at least one of the brush clamp (702) and the slider (604) being made of heat-resistant insulating material,
the control end of the motor (601) being is-connected to the central controller to adjust the position of the brush devices (7) so that the two brush heads (701) and the laser head (5) are always kept in a straight line.