公开(公告)号：US12005591B2

公开(公告)日：2024-06-11

申请号：US17051072

申请日：2019-07-16

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Canzhi Guo ,  Juan Hao ,  Wanxin Yang ,  Xianchun Xu ,  Ruili Jia ,  Xinhao Zheng

IPC: B25J9/16 ,  B25J9/00 ,  G01N29/04 ,  G01N29/265 ,  G01N29/28

CPC classification number: B25J9/1692 ,  B25J9/0087 ,  G01N29/04 ,  G01N29/265 ,  G01N29/28 ,  G01N2291/0289 ,  G01N2291/2698

Abstract: An ultrasonic testing system of dual robot arms and an ultrasonic testing method for use in testing quality of surface and interior of a workpiece. The system includes an extension rod provided between a tail-end of a master robot arm and an emitting probe and/or between a tail-end of a slave robot arm and a receiving probe. One or more connected extension rod rotating shafts is provided between the extension rod and the emitting probe or between the extension rod and the receiving probe. The method uses an X-axis constraint method to convert posture data of the discrete points in a trajectory file of the tested workpiece into Euler angles, and constrain the X-axes of the auxiliary coordinate systems at the same time so that the positive direction of the X-axis of each of the auxiliary coordinate systems is the trajectory tangent direction.

公开(公告)号：US11753696B2

公开(公告)日：2023-09-12

申请号：US17363579

申请日：2021-06-30

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Yuren Lu ,  Peng Yin ,  Peilu Li ,  Dezhi Li ,  Shuangyi Li ,  Wenyuan Song ,  Zhaowei Miao

IPC: C21D11/00 ,  C21D9/30 ,  C21D10/00

CPC classification number: C21D11/00 ,  C21D9/30 ,  C21D10/00 ,  F16C2210/00 ,  F16C2223/10 ,  F16C2223/30 ,  F16C2360/00

Abstract: A method for controlling deformation of a large-scale crankshaft comprising detecting and recording stress value(s) of part(s) to be regulated by the crankshaft; fixing the crankshaft on a tool to couple transmitting ends of high-energy acoustic beam transducers with the part(s) to be regulated; turning on the high-energy acoustic beam transducers to emit high-energy acoustic beams into the crankshaft, controlling working frequencies of the high-energy acoustic beam transducers within a range of 10-30 kHz, and setting a predicted regulation and control time according to the stress value(s) of the part(s) to be regulated; and closing the high-energy acoustic beam transducers when the predicted regulation and control time is reached, and taking the crankshaft out of the tool.

公开(公告)号：US11680857B2

公开(公告)日：2023-06-20

申请号：US17331045

申请日：2021-05-26

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Shuangyi Li ,  Yuren Lu ,  Peng Yin ,  Dezhi Li ,  Wenyuan Song

IPC: G01L1/25 ,  G01L5/00 ,  G01N29/275 ,  G01N29/28 ,  G01N29/30 ,  G01N29/22 ,  G01N29/07

CPC classification number: G01L1/255 ,  G01L5/0047 ,  G01L5/0066 ,  G01N29/275 ,  G01N29/28 ,  G01N29/30 ,  G01N29/07 ,  G01N29/225 ,  G01N2291/101 ,  G01N2291/2623 ,  G01N2291/2626 ,  G01N2291/2634

Abstract: An ultrasonic test device and test method for service stress of a moving mechanical component, where the device comprises an ultrasonic probe, a coupling fluid, a pressure-maintaining cover and universal wheels. The cover is vertically arranged above an inspected position of an inspected component, an interior of the pressure-maintaining cover is filled with coupling fluid, a bottom of the cover is provided with a structure permeable to the coupling fluid to form a coupling fluid film between the inspected position and the bottom of the cover, and a top of the cover is equipped with the ultrasonic probe. A detection part at a lower part of the ultrasonic probe extends into the coupling fluid of the cover and is vertical to the bottom of the cover without contact. The distance between the ultrasonic probe and the inspected component is kept unchanged through the universal wheels.

公开(公告)号：US20220081736A1

公开(公告)日：2022-03-17

申请号：US17363579

申请日：2021-06-30

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Yuren Lu ,  Peng Yin ,  Peilu Li ,  Dezhi Li ,  Shuangyi Li ,  Wenyuan Song ,  Zhaowei Miao

IPC: C21D11/00 ,  C21D9/30 ,  C21D10/00

Abstract: A method for controlling deformation of a large-scale crankshaft comprising detecting and recording stress value(s) of part(s) to be regulated by the crankshaft; fixing the crankshaft on a tool to couple transmitting ends of high-energy acoustic beam transducers with the part(s) to be regulated; turning on the high-energy acoustic beam transducers to emit high-energy acoustic beams into the crankshaft, controlling working frequencies of the high-energy acoustic beam transducers within a range of 10-30 kHz, and setting a predicted regulation and control time according to the stress value(s) of the part(s) to be regulated; and closing the high-energy acoustic beam transducers when the predicted regulation and control time is reached, and taking the crankshaft out of the tool.

公开(公告)号：US10989696B2

公开(公告)日：2021-04-27

申请号：US16910993

申请日：2020-06-24

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Canzhi Guo ,  Juan Hao ,  Wanxin Yang ,  Xianchun Xu ,  Ruili Jia ,  Xinhao Zheng

IPC: G01N29/28 ,  G01N29/04

Abstract: An ultrasonic testing device that can make a robotic testing system reach the surface of a complex curved composite workpiece that is not easy to reach and perform a quality testing. By pumping a coupling liquid into the device so that the coupling liquid enters a waveguide and jets onto the surface of the workpiece, an ultrasonic wave can be transmitted in the waveguide and reach the surface of the workpiece and penetrate the workpiece, thereby achieving the purpose of quality testing of the workpiece. By providing two ultrasonic testing devices without a waveguide on both sides of a tested workpiece, respectively, and by mounting the waveguide on one side or both sides of the ultrasonic testing devices, it is possible to transmit the ultrasonic waves to the surface of the workpiece or to receive the ultrasonic waves from the surface of the workpiece.

公开(公告)号：US20210086309A1

公开(公告)日：2021-03-25

申请号：US16991372

申请日：2020-08-12

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Shuangyi Li ,  Yuren Lu ,  Peng Yin ,  Dezhi Li ,  Ruili Jia ,  Wenyuan Song

IPC: B23K31/00 ,  C22F3/00

Abstract: A device and method for reducing and homogenizing residual stress of a component by an array of high-energy elastic waves. The device includes a tubular body consisting of at least two elements, multiple first through holes and a clamping device provided on an outer side of the tubular body. Exciters are connected with exciting wedges so that an end face of each of the exciting wedges is closely coupled to a surface of the component. A connection portion is coupled to an emitting end of each of the exciters, where the axis of the emitting end coincides with a normal line at a pressed surface of the component A multi-channel signal amplifier is electrically connected to each of the exciters and a multi-channel excitation control module is electrically connected to the multi-channel signal amplifier.

公开(公告)号：US20200158585A1

公开(公告)日：2020-05-21

申请号：US16684900

申请日：2019-11-15

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Yuren Lu ,  Dezhi Li ,  Peng Yin

IPC: G01L5/00 ,  G01N29/04 ,  G01N29/24

Abstract: The present disclosure provides a non-destructive detecting method for weld residual stress and a probe using the same, in the above method, detecting is performed by an ultrasonic detecting probe in contact with a detected portion of a workpiece to be detected, wherein when the weld residual stress of an intersecting curve weld bead of surfaces of cylinders is detected, for the same position of the intersecting curve weld bead, one of the residual stress of an axial direction of the cylinders and the residual stress of a circumferential direction of the cylinders is detected as a principal stress. For the surface of the cylinder at one side of the intersecting curve weld bead, the detecting of the weld residual stress of the surface of the cylinder can be realized only by using an ultrasonic detecting probe having one type of curved surface.

公开(公告)号：US09863826B2

公开(公告)日：2018-01-09

申请号：US14648225

申请日：2013-07-02

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Chunguang Xu ,  Lang Xu ,  Qinxue Pan ,  Dingguo Xiao ,  Xiao Li ,  Jun Guo ,  Wentao Song ,  Haiyang Liu

IPC: G01N29/04 ,  G01N29/07 ,  G01N29/24 ,  G01N29/30 ,  G01N29/44 ,  G01N29/265 ,  G01L1/25

CPC classification number: G01L1/255 ,  G01N29/04 ,  G01N29/041 ,  G01N29/07 ,  G01N29/2487 ,  G01N29/265 ,  G01N29/30 ,  G01N29/44 ,  G01N29/4472 ,  G01N2291/02827 ,  G01N2291/0289 ,  G01N2291/0421 ,  G01N2291/0425 ,  G01N2291/102

Abstract: A sensor device, comprising two symmetrically disposed sonolucent wedges (5), and a connecting piece for fixedly connecting the two sonolucent wedges (5); the upper surfaces of the sonolucent wedges (5) are provided with inclined planes; installation holes are formed on the inclined planes; transducers (3) are installed in respective installation holes; one transducer (3) is used to generate ultrasonic waves, and the other transducer (3) is used to receive the ultrasonic waves generated by the previous transducer (3). The residual stress detection system comprises a sensor device, an ultrasonic transmission card, and a data acquisition card.