45 results about "Computer aided drawing" patented technology

A method and apparatus to create two dimensional and three dimensional structures using a maskless photolithography system that is semi-automated, directly reconfigurable, and does not require masks, templates or stencils to create each of the planes or layers on a multi layer two-dimensional or three dimensional structure. In an embodiment, the pattern generator comprises a micromirror array wherein the positioning of the mirrors in the micromirror array and the time duration of exposure can be modulated to produce gray scale patterns to photoform layers of continuously variable thickness. The desired pattern can be designed and stored using conventional computer aided drawing techniques and can be used to control the positioning of the individual mirrors in the micromirror array to reflect the corresponding desired pattern. A fixture for mounting of the substrate can be incorporated and can allow the substrate to be moved three dimensions. The fixture can be rotated in one, two, or three directions.

The invention discloses a linear fairing and mounting method for a ship anchor platform hawse pipe in the field of shipbuilding. The method comprises the following steps: firstly, based on computer aided drawing, linear drawings of the anchor platform, the hawse pipe and an anchor platform cover plate are drawn; the fairing treatment on the linear drawings of the anchor platform, the hawse pipe and the anchor platform cover plate is carried out to generate numerical control files which guide a numerical control forming system to automatically process the anchor platform, the hawse pipe and the anchor platform cover plate; an anchor platform structural plate is prepared; finally, the anchor platform, the hawse pipe, the anchor platform structural plate and the anchor platform cover plate are assembled. The method has the characteristics of simple design, easy processing and construction and the like; compared with the similar technique of foreign countries, the construction period is reduced by more than 20 days, and the processing quality is simultaneously ensured.

The invention provides an installation method for integrated prefabrication of an anchor platform and an anchor mouth. The installation method for integrated prefabrication of the anchor platform and the anchor mouth comprises the following steps that firstly, the structural drawing of the anchor platform and all components of the anchor platform is drawn based on computer aided drawing, and a numerically-controlled file is generated so that a numerically-controlled forming system can be guided to machine components such as a panel, a wrist plate, an annular connecting piece, a surrounding plate and a hawse pipe; secondly, the components such as the panel, the wrist plate, the annular connecting piece, the surrounding plate and the hawse pipe are installed and welded, so that an organic integrity is formed; finally, the organic integrity is hoisted onto an outer plate, of a segmented structure, of a ship body to be positioned, welded and fixed. By the adoption of the installation method for integrated prefabrication of the anchor platform and the anchor mouth, integrated installation of the components such as the anchor platform can be achieved in a one-time mode when the ship body is re-manufactured in a segmented mode, a small number of crane sources are occupied, integrated prefabrication of the anchor platform and the anchor mouth can be achieved conveniently and rapidly, manpower and material resources are saved, and the cycle of a slipway (dock) is shortened.

The invention discloses an automatic generation method of a cable bridge based on an EXCELVBA (visual basic for applications) technology and computer aided drawing. The method comprises the following steps: a, defining a weight conversion table of specification, cross area and unit length of a cable in a computer system; b, inputting a cable list and a routing table into the computer system; c, calculating the cable cross area capacity and weight of each branch section according to the cable list and the routing table; d, defining the cable cross area of a single-layer bridge to obtain the number of bridge layers of each branch section; and e, generating a material list, a cable bridge diagram, a cable passage trending schematic diagram and a cable network node diagram according to the number of bridge layers in the step d. According to the method, the cable bridge diagram and the material list can be generated automatically, so that cable construction and design checking are facilitated.

A computer system for analyzing fasteners and fastened joints includes a display and a processor. The processor may be configured to provide a first interface and a second interface to the display, and receive, via the first or second interface, a set of parameters associated with a component to be fastened. Further, the processor may be configured to provide the set of parameters to an analysis tool, execute instructions associated with the analysis tool, and provide an output of the analysis tool to the display via either the first or second interface. The first interface may include at least one data entry form, and the second interface may be associated with a computer aided drafting tool.

A web-based plant maintenance system and method for organizing, retrieving, and displaying information relevant to plant maintenance which utilizes a database and a software application. Information relevant to plant maintenance is stored in the database. The software application utilizes the information to create a hierarchy of pages capable of being viewed in a web-browser. An end user can then access the appropriate page by navigating through the hierarchy, or by associating the web pages with design entities in a computer-aided drafting model.

A microvalve and a method of forming a diaphragm stop for a microvalve. The microvalve includes a first layer and a diaphragm member to control the flow of fluid through the microvalve. The method comprises the step of forming a contoured shaped recess extending inward from a surface of the layer by using a laser to remove material in a series of areas, at successively greater depths extending inward from said surface. Preferably, the recess has a dome shape, and may be formed by a direct-write laser operated via a computer aided drawing program running on a computer. For example, CAD artwork files, comprising a set of concentric polygons approximating circles, may be generated to create the dome structure. The laser ablation depth can be controlled by modifying the offset step distance of the polygons and equating certain line widths to an equivalent laser tool definition. Preferably, the laser tool definition is combined with the CAD artwork, which defines a laser path such that the resulting geometry has no sharp edges that could cause the diaphragm of the valve to tear or rupture.

A method for simplifying a representation of a computer-aided design model may include determining cavities within a three-dimensional computer-aided drawing model and closing the cavities with a closing feature where the closing feature is disposed at a pre-defined depth below the cavity opening. Determining cavities may include calculating the number of cavities within the model. Calculating the number of cavities within the model may include checking the number of internal loops present on the model. The method may further include generating a surface extract including an outer skin of the model, closing the outer skin, and filling the skin to create a filled solid body. The method may still further include generating a set of two-dimensional views of the model, each two-dimensional view from a respective viewpoint, where the set of viewpoints encircles the three-dimensional model.

The present invention includes the steps of: executing drawing program to form design drawing via inputting the data into the computer-aided drawing system; executing searching and comparing program to compare the element data in the drawing and the part data in the data base of enterprise resource planning system; downloading the data of the corresponding parts in the data base of enterprise resource planning system to the computer-aided drawing system; and executing user's interface program to inputting the part data different from those in the drawing into the computer-aided drawing systemand transferring automatically to the data base of enterprise resource planning system.

A method and system for automating the layout of perforation patterns is described. An embodiment of the invention includes an innovative software application running on a computer, which application allows a perforation designer to select lines or arcs that comprise edges of a building panel. The application determines a starting hole spacing based on the average distance through the geometric center of the panel, and a default perforation pattern is laid out on a computer aided drawing. The application provides the user with detailed information about the perforation layout such as number of perforations, panel area, and percentage of open area. The application further allows the user to change any parameter such as hole size, hole spacing, hole shape, and edge spacing. After any user adjustment of the parameters, the application automatically updates the perforation pattern.

Embodiments of the invention provide an auto layer sorting feature for a computer aided drawing (CAD) application where drawing elements are sorted into different drawing layers based on the graphic style associated with each individual drawing element. Objects added to the drawing may be automatically associated with a layer such that all objects on the layer have the same graphic style. If the user changes the properties of a given graphics style associated with one of the auto-sort layers, the updated style may be applied to each objects on that layer.

A microvalve and a method of forming a diaphragm stop for a microvalve. The microvalve includes a first layer and a diaphragm member to control the flow of fluid through the microvalve. The method comprises the step of forming a contoured shaped recess extending inward from a surface of the layer by using a laser to remove material in a series of areas, at successively greater depths extending inward from said surface. Preferably, the recess has a dome shape, and may be formed by a direct-write laser operated via a computer aided drawing program running on a computer. For example, CAD artwork files, comprising a set of concentric polygons approximating circles, may be generated to create the dome structure. The laser ablation depth can be controlled by modifying the offset step distance of the polygons and equating certain line widths to an equivalent laser tool definition. Preferably, the laser tool definition is combined with the CAD artwork, which defines a laser path such that the resulting geometry has no sharp edges that could cause the diaphragm of the valve to tear or rupture.

The invention discloses a method for drawing jacquard pattern handwriting mud through a computer. The method comprises the steps of determining a detected pressure position of a digital panel as a starting point for drawing the pattern in handwriting mud when the pressure on the digital panel is detected, continuously acquiring the information of the pressure position of a pressure pen to form a movement orbit of the pressure pen, recording the movement speed and the pressure intensity of the pressure pen, collecting one stroke when no pressure of the digital panel is detected, generating a stroke shape area according to a predetermined handwriting mud stroke effect according to the movement orbit of the pressure pen, generating novel particles in the stroke shape area according to the recorded movement orbit of the pressure pen, the movement speed of the pressure pen and the pressure intensity by adopting a handwriting mud particle transmitter and a handwriting mud particle influencer, and displaying the collected stroke which is processed on a display screen of the computer. The method has the beneficial effect that the pattern with the handwriting mud tissue particle effect and the warp-weft intertwine effect can be drawn through the assistance of the computer.

The invention discloses an oil painting printing duplication method comprising the following steps that S1, collecting information of the original oil painting, S2, conducting contrast partitioning; S3, conducting computer aided drawing; S4, conducting adhesive dispensing and polishing; S5, conducting printing through a print; S6, conducting coating through a coating machine; and S7 conducting spraying through a spraying printing machine. According to the oil painting printing duplication method, a three-dimensional scanning device and a color scanning device are adopted to conduct high-definition scanning on the original oil painting, high-precision three-dimensional relative coordinate values and surface color values of the original oil painting can be obtained, the computer is utilized to conduct information processing and draw the color graph of the original oil painting, the accuracy of the dimension scale of the drawn oil painting can be ensured, and the simulating effect is improved; due to the coating manner, the three-dimensional impression of the oil painting is higher, and the simulating effect is better; compared with a traditional manual facsimile product, the obtained oil painting is real in color and accurate in dimension scale, the oil painting duplication efficiency is high, the three-dimensional enjoying effect of the original oil painting is improved, and the obtained oil painting duplicate is vivid in effect and look genuine.

A technology for machining the shaped shielding case by plate-type copying method includes computer aided drawing by ratio of 1:1, preparing metallic plate, driving it into several blocks, assembling, welding, polishing welded seams, and cleaning. Its advantages are high productivity and quality and low cost.

Embodiments of the invention provide an auto layer sorting feature for a computer aided drawing (CAD) application where drawing elements are sorted into different drawing layers based on the graphic style associated with each individual drawing element. Objects added to the drawing may be automatically associated with a layer such that all objects on the layer have the same graphic style. If the user changes the properties of a given graphics style associated with one of the auto-sort layers, the updated style may be applied to each objects on that layer.

A method and apparatus to create two dimensional and three dimensional structures using a maskless photolithography system that is semi-automated, directly reconfigurable, and does not require masks, templates or stencils to create each of the planes or layers on a multi layer two-dimensional or three dimensional structure. In an embodiment, the pattern generator comprises a micromirror array wherein the positioning of the mirrors in the micromirror array and the time duration of exposure can be modulated to produce gray scale patterns to photoform layers of continuously variable thickness. The desired pattern can be designed and stored using conventional computer aided drawing techniques and can be used to control the positioning of the individual mirrors in the micromirror array to reflect the corresponding desired pattern. A fixture for mounting of the substrate can be incorporated and can allow the substrate to be moved three dimensions. The fixture can be rotated in one, two, or three directions.

A method for simplifying a representation of a computer-aided design model may include determining cavities within a three-dimensional computer-aided drawing model and closing the cavities (120, 130) with a closing feature (122,132) where the closing feature (122,132) is disposed at a predefined depth below the cavity opening. Determining cavities (120, 130) may include calculating the number of cavities within the model. Calculating the number of cavities (120, 130) within the model may include checking the number of internal loops present on the model. The method may further include generating a surface extract including an outer skin of the model, closing the outer skin, and filling the skin to create a filled solid body. The method may still further include generating a set of two-dimensional views of the model, each two-dimensional view from a respective viewpoint, where the set of viewpoints encircles the three-dimensional model.

The invention provides a computer-aided drawing method and device for electrical piping, and the method comprises the steps of obtaining the cable information, the floor information, the matching relationship between the cable outer diameter and the piping specification, the pipe orifice distance information relative to the floor, and the matching relationship between the piping outer diameter andthe floor thickness, wherein the cable information comprises the cable engineering attribute; determining the outer diameter of the piping according to the matching relation between the outer diameter of the cable and the specification of the piping and the cable information; determining a fixed-point coordinate value of the pipe orifice in the two-dimensional plane; and according to the pipe orifice fixed-point coordinate value, the pipe orifice distance information of the relative floor slab, the floor slab information, the piping outer diameter and the matching relation between the pipingouter diameter and the thickness of the floor slab, automatically laying to form the three-dimensional electrical piping. According to the scheme, the three-dimensional tubing design efficiency can beimproved.

The invention relates to a two-dimensional modeling method for determination of axial clearance of a gearbox. The assembly relation is determined through gearbox structure modeling; then, a size chainmodel is established according to the assembly relation between parts, and the logic relation between related sizes is determined; finally, the axial clearance is automatically measured through computer aided drawing software, and the axial clearance is further determined. By use of the method, the axial size clearance is displayed more directly, the method can be directly applied to computer aided modeling software, and the design efficiency and the design quality are improved.

The invention relates to a three-dimensional modeling method for a gear hobbing processing tooth surface of a helical gear. A three-dimensional model of a gear blank and a three-dimensional model of the hobbing cutter blade trajectory surface are established in computer-aided drawing software; the gear hobbing processing motion is simulated through setting of processing technology parameter; a single-tooth profile three-dimensional model is obtained by differential drawing; the main technical features of the processed gear can be displayed, so as to carry out the operations of surface observation, roughness analysis, performance analysis, and the like; and three-dimensional modeling of the gear hobbing processing tooth surface of the helical gear is realized, which solves the problem of high cost of experimental measurement of gear hobbing processing effect, and can further analyze the influence of various processing parameters on component properties.

The invention provides a drawing die manufacturing method. The method includes the following steps setting parameters of a drawing die through a computer-aided drawing database; building a drawing die model; adopting DYNAFORM to perform performance prediction on parts formed in the drawing die model; synchronously adopting PROE to draw the drawing die model to complete parametric modeling of the drawing die model; outputting the parametric modeling of the drawing die model; manufacturing the drawing die according to the parametric modeling of the drawing die model. By testing and drawing the drawing die model, die designing efficiency is greatly improved, raw material consumption is saved, product quality is improved, service life of the die is prolonged, and intelligent management of drawing die designing is realized.

The present invention relates to a computer-aided drawing file management system. It includes: local network system, formed by adopting Microsoft Windows NT network software component; data base system, selecting and using Microsoft SQL Server 2000 data base system for storing and controlling data and searching data for user; customer terminal application program, namely drawing file management system software, selecting and using Microsoft Visual Basic 60 high-grade language to develop said system software, said software can be provided for every customer to send out various process instructions according to customer requirement on every terminal of local network system; and drawing file management system, it includes various modules for making drawing process management.

A computer implemented method is configured to detect an unconstrained or low-stiffness connection between parts of an initial finite element (FE) model in a computer aided drafting (CAD) application. A stiffness matrix of the initial FE model is transformed into a reduced stiffness matrix. A singular mode is determined in the reduced stiffness matrix. The plurality of singular mode is identified as corresponding to an unconstrained or low-stiffness connection between parts of the FE model.

The present invention includes the steps of: executing drawing program to form design drawing via inputting the data into the computer-aided drawing system; executing searching and comparing program to compare the element data in the drawing and the part data in the data base of enterprise resource planning system; downloading the data of the corresponding parts in the data base of enterprise resource planning system to the computer-aided drawing system; and executing user's interface program to inputting the part data different from those in the drawing into the computer-aided drawing system and transferring automatically to the data base of enterprise resource planning system.

The invention discloses a computer aided drawing device for art design. The computer aided drawing device comprises a drawing device body which is composed of a drawing block and a line placement box,a pen placement groove is formed at a position, close to the edge, of the outer surface on one side along the length direction of the drawing block, an inductive pen is embedded in the pen placementgroove, a drawing inductive plate is fixedly mounted on the outer surface of the top of the drawing block, and a square hole is formed in the outer surface on one side of the drawing block along the vertical direction below the pen placement groove. By adjusting bending degree of a rubber extensible pipe, convenience is brought to a user to adjust drawing posture to relieve cervical vertebra pressure; through a cartridge placement box embedded in the bottom end of a drawing plate, convenience is brought to the user to carry a cartridge of the inductive pen; through clamping connection of a clamping block and clamping grooves, the drawing block is more stable when the user adjusts angle of the same for drawing.

The invention belongs to the technical field of computer-aided drawing and relates to a software-aided drawing method for automatically generating connecting lines. The software-aided drawing method automatically generates connecting lines of a signal flow of a specified type by a computer-aided drawing software when the instrument control design of a nuclear power plant is carried out, and comprises the following steps in turn: (1) classifying and setting the connecting points of the drawing blocks; (2) selecting the connection points of the two blocks to be connected with the mouse; (3) thesoftware automatically judges the characteristics of the connection points of the selected two blocks and generates the connection lines. By using the software-aided drawing method for automatically generating the connecting line, the connecting line of the designated type of signal flow can be automatically generated by the computer-aided drawing software when the instrument control design of thenuclear power plant is carried out.