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Patent Agency Ranking
公开(公告)号：US20170087677A1
公开(公告)日：2017-03-30
申请号：US15376658
申请日：2016-12-13
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Zhijun Yang , Youdun Bai , Xin Chen , Jian Gao , Xindu Chen , Yunbo He , Yun Chen , Ruiqi Li , Chaoran Chen
CPC classification number: B23Q1/25 , B23Q1/34 , B23Q11/0039 , B25H1/02
Abstract: The present invention proposes a macro-micro integrated compound platform with adjustable dynamic characteristics. When a macro platform mover and a micro platform mover are driven at the same time, the whole large-scale high-speed motion can be realized; when a motion deviation occurs, a micro motion platform can be driven separately to realize the high-frequency motion deviation compensation, because the micro motion platform has small inertia and zero friction and achieves precision displacement output through elastic deformation. The macro-micro integrated compound platform can realize high-speed precision motion through compound motion control, is mounted and used in a manner consistent with the traditional platform, and is convenient to be popularized and applied; a stiffness and frequency adjustment mechanism and a variable damper are arranged, so that the micro motion platform can transfer the motion of a macro motion platform and isolate the vibration at any frequency, and realize high-precision displacement compensation; meanwhile, damping of the variable damper is matched with the stiffness and frequency parameters to ensure the high-precision displacement compensation at any frequency and increase the range of working frequency.
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公开(公告)号：US10232477B2
公开(公告)日：2019-03-19
申请号：US15376658
申请日：2016-12-13
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Zhijun Yang , Youdun Bai , Xin Chen , Jian Gao , Xindu Chen , Yunbo He , Yun Chen , Ruiqi Li , Chaoran Chen
Abstract: The present invention proposes a macro-micro integrated compound platform with adjustable dynamic characteristics. When a macro platform mover and a micro platform mover are driven at the same time, the whole large-scale high-speed motion can be realized; when a motion deviation occurs, a micro motion platform can be driven separately to realize the high-frequency motion deviation compensation, because the micro motion platform has small inertia and zero friction and achieves precision displacement output through elastic deformation. The macro-micro integrated compound platform can realize high-speed precision motion through compound motion control, is mounted and used in a manner consistent with the traditional platform, and is convenient to be popularized and applied; a stiffness and frequency adjustment mechanism and a variable damper are arranged, so that the micro motion platform can transfer the motion of a macro motion platform and isolate the vibration at any frequency, and realize high-precision displacement compensation; meanwhile, damping of the variable damper is matched with the stiffness and frequency parameters to ensure the high-precision displacement compensation at any frequency and increase the range of working frequency.
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公开(公告)号：US10661399B2
公开(公告)日：2020-05-26
申请号：US15844571
申请日：2017-12-17
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Zhijun Yang , Youdun Bai , Xin Chen , Chaoran Chen
Abstract: The present invention discloses a single-drive rigid-flexible coupling precision motion platform, including a machine base, a linear guide rail, a rigid-flexible coupling motion platform, a linear driver and a displacement sensor, wherein the rigid-flexible coupling motion platform includes a rigid frame, flexible hinges and a core motion platform; and the core motion platform of the rigid-flexible coupling motion platform is connected with the rigid frame through the flexible hinges. In this arrangement, the single-drive rigid-flexible coupling precision motion platform disclosed by the present invention can realize high-accuracy continuous change displacements of the platform, thereby avoiding displacement “jitter” caused by sudden change of acceleration. The present invention further discloses a realization method and an application including the above platform.
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公开(公告)号：US09746123B2
公开(公告)日：2017-08-29
申请号：US15376654
申请日：2016-12-12
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Zhijun Yang , Youdun Bai , Xin Chen , Chaoran Chen , Chengxiang Li
IPC: F16M13/00 , F16M7/00 , F16F15/02 , F16F15/073
CPC classification number: F16M7/00 , F16F3/10 , F16F15/02 , F16F15/022 , F16F15/073 , F16F15/08 , F16F15/085 , F16F2224/02 , F16F2228/04 , F16F2228/066 , F16F2228/08 , F16F2230/34
Abstract: A composite frequency-adjustable shock absorber is provided, comprising a motion main machine stand bar and a shock absorption device, which are arranged on a foundation carrier platform; the shock absorption device is divided into an upper shock absorption device and a lower shock absorption device, the shock absorption device is arranged on a base with an inner cavity, and the upper shock absorption device for suppressing the low-frequency vibration and the lower shock absorption device for absorbing additional high-frequency vibration are connected in series; the upper shock absorption device comprises an elastic component based on a flexible hinge group and a prestress adjusting device, the flexible hinge group is arranged in the inner cavity of the base, the prestress adjusting device for adjusting the inherent frequency of the flexible hinge group is connected with the flexible hinge group, and the motion main machine stand bar is fixed on a load bearing portion of the flexible hinge group. The inherent frequency of the whole flexible hinge group is changed, so the high frequency band and the low frequency band of vibration systems with different masses and different excitation frequencies are effectively isolated, the structure is simple, the adjustment is convenient, and the cost is not high.
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公开(公告)号：US20170089505A1
公开(公告)日：2017-03-30
申请号：US15376654
申请日：2016-12-12
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Zhijun Yang , Youdun Bai , Xin Chen , Chaoran Chen , Chengxiang Li
IPC: F16M7/00 , F16F15/073 , F16F15/02
CPC classification number: F16M7/00 , F16F3/10 , F16F15/02 , F16F15/022 , F16F15/073 , F16F15/08 , F16F15/085 , F16F2224/02 , F16F2228/04 , F16F2228/066 , F16F2228/08 , F16F2230/34
Abstract: A composite frequency-adjustable shock absorber is provided, comprising a motion main machine stand bar and a shock absorption device, which are arranged on a foundation carrier platform; the shock absorption device is divided into an upper shock absorption device and a lower shock absorption device, the shock absorption device is arranged on a base with an inner cavity, and the upper shock absorption device for suppressing the low-frequency vibration and the lower shock absorption device for absorbing additional high-frequency vibration are connected in series; the upper shock absorption device comprises an elastic component based on a flexible hinge group and a prestress adjusting device, the flexible hinge group is arranged in the inner cavity of the base, the prestress adjusting device for adjusting the inherent frequency of the flexible hinge group is connected with the flexible hinge group, and the motion main machine stand bar is fixed on a load bearing portion of the flexible hinge group. The inherent frequency of the whole flexible hinge group is changed, so the high frequency band and the low frequency band of vibration systems with different masses and different excitation frequencies are effectively isolated, the structure is simple, the adjustment is convenient, and the cost is not high.
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