41results about How to "Easy to modify and adjust" patented technology

The invention relates to a dynamic load simulation testing instrument and a simulation testing method. The dynamic simulation testing instrument comprises a servo motor, a servo driver with a moment driving mode and load setting and loading and parameter display software, wherein the load setting and loading and parameter display software can send a control command which simulates the position-moment relation of an actual mechanical structure to the servo driver through a bus for controlling the motion of the servo motor, and the servo motor is in reverse connection with a tested motor through a coupler. The simulation testing method comprises the following steps: controlling the operation of the simulation testing motor and the tested motor through the load setting and loading and parameter display software, using a PC (personal computer) to control the simulation testing motor driver to apply a moment which is reverse to that of the tested motor on the simulation testing motor by adopting the moment control mode through the load setting and loading and parameter display software, and further performing simulation testing on the tested motor. The simulation testing instrument and the simulation testing method have the advantages that the instrument has simple structure, and is convenient to operate and maintain; and the dynamic loads of various different mechanical structures, such as a cam and the like, can be simulated.

The invention relates to the technical field of metal molding and casting, in particular to a method for quickly casting a large precision casting based on a 3D printing technology; through combination of a 3D printing and molding technology and a lost foam casting technology, by using special shell type coatings, a casting without the defects of recarburization, pores, slag inclusion or wrinkledskin can be cast, and the requirements of a high grade and complex structure and the precision casting can be met; and the method has the advantage of green, environmental protection and no pollution.The method comprises the steps of three-dimensional modeling, making of a fusible model and a special shell mold, boxing of the shell mold, negative pressure pouring and the like. The method has theadvantages of simple processing technology, no need of developing a mould, short production time, easy regulation and modification, low production cost, green, environmental protection and no pollution, and the molding process can be finished in real time; the requirements of individualization and customization cam be met; high quality products can be made, and massive casting and precision casting are both taken into consideration.

The invention relates to a construction progress plan optimal making method. The method comprises the steps that a corresponding BIM (building information model) is established according to a construction drawing, and lightweight processing is performed; the BIM is imported into BIM progress management software for integration; time parameters are given to all components in the BIM according to aconstruction progress plan in the BIM progress management software, so that the BIM is associated with the construction progress plan; the BIM progress management software is utilized to perform three-dimensional visual simulation on the BIM associated with the construction progress plan, the rationality of the construction progress plan is checked through the visual simulation, and unreasonable parts are optimized to form an optimized construction progress plan and a BIM associated with the optimized construction progress plan; and the construction progress plan in a required format is exported. Through the method, three-dimensional visual simulation on the construction progress plan can be realized, and modification and adjustment of the construction progress plan are convenient and fast.

The invention relates to a curved surface template segmentation method, a curved surface template segmentation device, computer equipment and a storage medium. The method comprises the steps of obtaining a to-be-segmented curved surface and a target segmentation unit size; extracting a first direction length and a second direction length of the target segmentation unit in the two curved surface directions from the target segmentation unit size; extracting a first structure line from the to-be-segmented curved surface according to the first direction length, determining a first segmentation point in the first structure line according to the second direction length, and generating a first isoparametric curve according to the first segmentation point; extracting a second structure line from the to-be-segmented curved surface according to the second direction length, determining a second segmentation point in the second structure line according to the first direction length, and generatinga second isoparametric curve according to the second segmentation point; and generating a segmentation line of the to-be-segmented curved surface according to the first isoparametric curve and the second isoparametric curve, obtaining a three-dimensional template segmentation model according to the segmentation line, and outputting the three-dimensional template segmentation model. By adopting the method. The working precision of curved surface template segmentation can be improved.

The invention provides a special crankshaft multi-bend reversing machine. A hydraulic machine is fixedly installed on a single rectangular machine body vertical support, a sliding block with an upper die part is driven through a main hydraulic cylinder in a driving mode, the sliding block is in sliding fit to stand column longitudinal sliding rails on the two sides of the machine body vertical support in a sliding mode, a lower die part is installed on a lower support, a fixed die frame and a rotary die disc which correspond to each other in an up-and-down mode are assembled in the upper die part and the lower die part, a twisting arm is pivoted between stand columns on the two sides, and a pivoting center is coaxial with the rotary die disc. According to the technical scheme, a conventional three-beam four-column main machine structure is removed, device occupied space and land occupied areas are greatly reduced, operation space is accordingly released to the maximum degree, it is important that the twisting structure has the advantages that the power is high, and the maximum twisting corner is large in scope, the twisting quality and the twisting effect are guaranteed, and the machining efficiency is improved.

The invention discloses a data management system and a technology transaction platform, and the system comprises a data management module which is used for the management of the basic data and user information of the technology transaction platform; a business management module which is used for managing the business application of the technology transaction platform and the interaction between the technology transaction parties; a resource management module which is used for gathering and integrating similar service parties and dynamically connecting service intermediary resources of all links of the whole transaction process so as to realize matching of requirements and resources; and a resource storage module which is used for storing various resource data related to the technology transaction platform. According to the invention, effective data management can be carried out on the technology transaction platform, accuracy and reliability of data interaction of the technology transaction platform are guaranteed, improvement of data management efficiency, resource utilization efficiency and operation reliability of the technology transaction platform is facilitated, and functions of the technology transaction platform are enriched. The system has high advancement, openness, expandability, stability and reliability.

The invention provides a flexible general assembly workshop process line structure based on an AGV, and belongs to the technical field of automobile general assembly. The general assembly workshop process line structure comprises a chassis assembly line, a final assembly line, an engine sub-assembly line, a tire mounting workstation, a cab sub-assembly line and an upender. The chassis assembly line and the final assembly line are both annular and arranged in parallel, the chassis assembly line is connected with the feeding end of the turnover machine, the discharging end of the turnover machine is connected with the final assembly line, and the engine split charging line, the cab split charging line and the chassis assembly line are located on the two opposite sides of the final assembly line respectively. The tire installation work station is arranged at the leaving end of the final assembly line. The chassis assembly line comprises a plurality of sets of first AGVs, and the final assembly line comprises a plurality of sets of second AGVs. And the civil engineering cost and the overall occupied space of a process line can be greatly reduced while general assembly machining of commercial vehicle products corresponding to various whole vehicle lengths is achieved, and the construction period is shortened.

The invention discloses a preparation method of hollow cactus-shaped carbon plate-carbon nanotubes. The method adopts a polydopamine-assisted interface induction strategy to convert ZIFs into hollow cactus-shaped carbon plate-carbon nanotubes, and the hollow cactus-shaped carbon sheet-carbon nanotubes can be applied to an electrocatalysis process. By coordinating the coordination between the precursors Zn and Co<2+> and introducing a PDA polymer, ZIFs@PDA can be obtained, and by means of the interface induction and confinement effect of PDA in the pyrolysis process, reasonable optimization ofthe components and structures can be realized simultaneously, and finally, acid treatment is carried out to remove part of metal particles in the Co-ZIFs@PDA pyrolysis derived carbon, thus obtaining the nitrogen-doped hollow cactus-shaped CS-CNTs. The CS-CNTs prepared by the preparation method disclosed by the invention have excellent ORR activity and durability in an alkaline solution.

The invention provides a cylindrical glass product mechanical clamping arm with two-degree-of-freedom adjustment. The cylindrical glass product mechanical clamping arm with two-degree-of-freedom adjustment comprises a driving motor, a motor fixing plate, an action arm and a glass bottle clamp, wherein the driving motor comprises a front driving arm driving motor and a rear driving arm driving motor; a front driving arm and a rear driving arm of a glass bottle clamp are respectively connected and driven by the front driving arm driving motor and the rear driving arm driving motor; a specific track is obtained through the mutual matching of the quadrangular driving arms; different glass bottle clamp movement tracks can be designed by adjusting the running speed, the angle and the relative position of the two driving arms, so that different production lines is adapted; and in addition, the swing and the clamping of the glass bottle clamp are controlled through the transmission of a servomotor and a gear, so that the clamping time point, the opening angle and the position of the glass bottle clamp is freely controlled, and the glass bottle clamp is suitable for cylindrical glass products such as glass bottles and cups with different specifications. The cylindrical glass product mechanical clamping arm with two-degree-of-freedom adjustment has the advantages of adjustable track, accurate control and suitability for cylindrical glass products with various specifications.

Embodiments of the invention disclose a suspension simulation system and method for an indoor decorative suspended ceiling, and an electronic device. The simulation method comprises the steps of pre-storing suspension parameters settable for a user; displaying the suspension parameters settable for the user in a predetermined form in an interactive interface; collecting an operation instruction input by the user, and according to the operation instruction, setting the suspension parameters in the interactive interface; and according to the set suspension parameters, generating a correspondingsuspension model used for previewing in the interactive interface. Compared with the prior art, the decorative suspended ceiling can be quickly simulated and the suspension model is generated; parametric setting enables drawing to be real, quick and efficient; basal classification is very concrete and detailed, thereby accurately estimating a project amount and a construction cost; and a previewing function greatly facilitates a designer to perform adjustment and modification.