4results about How to "Quick coupling" patented technology

The application discloses a quick finite element modeling method of a five-axis machining center driven by G code instructions, and belongs to the technical field of machine tool simulation and structural dynamics. Step 1: independent meshing of parts and pre-computation of element matrices; step 2: establishment of a machine tool kinematics model and construction of a joint surface node index table; step 3: G code instruction analysis and node coordinate updating based on inverse kinematics solution; step 4: automatic pairing of joint surface nodes based on the K nearest neighbor algorithm; step 5: master-slave node freedom degree deduplication and preprocessing based on a spherical hinge connection pair; step 6: overall matrix assembly based on matrix reuse and rotation transformation; and step 7: multiple constraint application and system matrix condensation processing. The application can realize dynamic updating of a machine tool finite element model, reflect time-varying structural characteristics driven by G code instructions in a machining process, provide a more accurate mechanical model for dynamic simulation, and support forward design iteration and machining process optimization of a machine tool structure.

The utility model relates to a coupling module and a confocal microscope-optical tweezers integrated system, and relates to the technical field of optical instruments, and the coupling module comprises a housing which is provided with an installation space which longitudinally penetrates through the housing; a light through hole is formed in the side wall of the mounting space; the dichroscope frame is horizontally and linearly connected in the mounting space in a sliding manner and is aligned with the light through hole; the optical filter frame is located in the installation space and installed on the dichroscope frame. A dichroscope frame and an optical filter frame in the coupling module can slide, so that the optical tweezers module optical path and the confocal microscope optical path can be quickly coupled and separated.

The application provides a counterweight chassis and a seabed sensing and collecting device assembly, and belongs to the technical field of marine monitoring devices. The counterweight chassis comprises a disc body and a pressing clamp. The disc body is provided with a strip-shaped mounting through hole. The portions of the disc body on both sides of the strip-shaped mounting through hole are provided with bolt holes one. The end of the strip-shaped mounting through hole is provided with a lower groove. The middle portion of the pressing clamp is provided with an upper groove. The two ends of the pressing clamp are connected with the disc body. The upper groove is buckled on the top of the lower groove. The surface of the disc body is provided with a hollow through port. The bottom of the disc body is provided with an insertion support leg. The seabed sensing and collecting device with a three-component vibration sensor assembly is fixed on the strip-shaped mounting through hole to form the seabed sensing and collecting device assembly. The counterweight chassis can realize the overall counterweight effect and ensure the stability of the direction in the water body. The hollow through port ensures the overall sand penetration effect. The insertion support leg is sunk into the sand to increase the stability and make the bottom of the seabed sensing and collecting device directly contact with the seabed, thereby ensuring the accuracy of signal receiving.

The application discloses an intelligent collaborative control method for high-temperature-impact coupling test, and belongs to the technical field of civil engineering structure test and intelligent control. The method collects the temperature of a test piece, the running state of a heating device and the preparation state of an impact loading device in real time; determines an effective characteristic temperature according to the temperature of multiple measuring points, calculates the predicted withdrawal duration of the heating device and the predicted falling duration of an impact body; predicts the temperature at the impact contact moment based on the pre-labeled temperature attenuation law, collaboratively determines the withdrawal trigger moment and the release trigger moment; after the withdrawal is completed, dynamically corrects the attenuation coefficient based on the actual withdrawal duration and re-predicts the temperature, and accordingly corrects the release trigger moment; when the conditions are met, the impact body is released and test data is collected. The application takes the temperature at the impact contact moment as a control target, and through pre-prediction, collaborative decision and post-dynamic correction, the control precision of the impact instant temperature is significantly improved, and the repeatability, safety and reliability of the test are enhanced.