摘要:
A coordinate measuring instrument which measures the size and other factors of a work from amount of three-dimensional relative movement between a probe sensor and the work, as well as a method for generating a reference work shape pattern data which is to be used in automatic measurement. The coordinate measuring instrument has a CAD part for converting design data into shape pattern data, a measuring part for generating, by adding measuring conditions to the shape pattern data, measurement information which includes instructions concerning measuring procedure to be output to a controller, and measuring procedure instruction means having a system for setting and inputting the measuring conditions, whereby an optimum measuring program can be formed without necessitating any reference work or actual work. The method of generating the shape pattern data includes the steps of generating measurement plane shape patterns by effecting sweeping with basic lines and suitably combining the measurement plane shape patterns so as to form a three-dimensional pattern.
摘要:
There is provided a numerical controller capable of automatic selection of a function appropriate for a machining request and optimization of parameters, and a CAD/CAM-CNC integrated system. The numerical controller includes: a shared database storing machining resource information about the numerical controller and a machine tool; and machining instruction information including machining content information created by CAD and CAM and machining request information about a request required for machining; a machining instruction deciphering portion deciphering the machining instruction information; and a machining instruction executing portion executing the machining based on a result of decipherment by the machining instruction deciphering portion; and the machining instruction deciphering portion executes at least one of a process for judging whether the machining is possible or not based on the machining instruction information and the machining resource information, a process for deciding parameters for the machining and a process for automatically selecting a function to be used for the machining.
摘要:
An automated 3D Optical Metrology Scanning and Computer Aided Inspection System for dimensional inspection of precision manufactured parts. The system example and implemented configuration is based within a relocatable cabinet providing ambient light and optional temperature control. The cabinet further includes a part placement area having an optical metrology scanner positioned over a multi-axis robotic arm positioned in the part placement area. The robotic arm is constructed and arranged to grip and manipulate parts within a field of view of the optical metrology scanner. The robotic arm provides adequate multi-axis control to rotate and tilt and translate tp manipulate the part to allow substantially every surface of the part to be scanned. Dimensional comparison and analysis software application provide geometric conformance/deviation plus extraction of the dimensions indicated in the part computer aided design (CAD) model.
摘要:
A method for analyzing tolerances for features for an object. A framework may be created from the plurality of features for the object. The framework may be fitted to a plurality of manufactured features for the object based on the plurality of features to form a fit framework. A remaining clearance may be identified between each of a plurality of manufactured sizes associated with the plurality of features and each of plurality of virtual conditions for the plurality of features to form a plurality of remaining clearances. A plurality of remaining clearance geometric shapes may be formed from the plurality of remaining clearances. The plurality of remaining clearance features may be positioned around a single true position. A common region may be identified from between the plurality of remaining clearances. A minimum remaining float may be identified from the common region. A resulting pattern transformation may be determined.
摘要:
The invention relates to a method for planning an inspection path (2) for at least one optical picture-taking device (4), particularly a camera, for inspecting a three-dimensional object (3). The picture-taking device (4) and the object (3) are movable relative to each other by means of a displacement device (5, 6). To ensure that the method for planning inspection paths and for determining areas to be inspected is easy to use and reliably covers all areas to be inspected, it is provided that, based on the design data (8), particularly CAD data and/or data determined by a sensor, relating to the object (3) and/or an area (12) to be inspected on the object, and based on the optical imaging characteristics of the picture-taking device (4), stored in electronic form, and using an arithmetic logic unit (10), the inspection path (2) for the optical picture-taking device (4) is automatically determined by specifying a specific geometric relationship between the picture-taking device (4) and the surface to be inspected.
摘要:
A numerical control device of the present invention includes a control unit that controls a machining tool including a main axis having a screw-hole inspection gauge attached thereto in such a way that a feed-axis motor and a main-axis motor for the main axis perform operations for screw-hole inspection based on a machining program and a determining unit that determines acceptance/defect of inspection of a screw hole machined on a workpiece based on a condition of the feed-axis motor or the main-axis motor during control by the control unit.
摘要:
Disclosed is an automatic program forming apparatus which automatically forms a part program for extracting the contour measurement position of a measurement object and the measurement condition data from two-dimensional CAD graphic information, and for calculating the XYZ coordinates of the approach position, entering position, etc. of a probe of a three-dimensional contour measurement device at the time of the contour measurement on the basis of the extracted contour measurement position and measurement condition data to thereby control the three-dimensional contour measurement device; and which automatically forms a test program for simulating the measurement operation of the part program in advance.
摘要:
A method and apparatus for controlling an automotive vehicle body assembling line including a floor main assembling unit for positioning a plurality of floor main components and jointing the positioned floor main components to assemble a floor main, a body side assembling unit for positioning a plurality of body side components and jointing the positioned body side components to assemble a body side, and a vehicle body assembling unit for positioning the body side and the floor main and jointing the positioned body side and the positioned floor main to assemble a vehicle body. The pushing forces applied to respective positioning points set on the body side are measured when the vehicle body assembling unit positions the body side with respect to the floor main. A pattern of distribution of the measured pushing forces is compared with a pattern of distribution of predetermined pushing forces required to push the respective positioning points of the body side when each of the floor main components is placed at a position deviated from a predetermined position to estimate at least one floor main component which is positioned incorrectly in the floor main assembling unit. Position errors are estimated from respective standard equations based on the pushing forces measured for the estimated floor main component. Each of the standard equations defines a predetermined relationship between a pushing force and a corresponding position error. The floor main assembling unit is controlled to eliminate the estimated position errors.
摘要:
A system for automatic finishing of machined parts comprising apparatus for defining a workpiece and finishing parameters thereof corresponding to a finishing task, apparatus for calcualting a three-dimensional path about the workpiece along which a finishing tool is drawn in order to perform the finishing task, apparatus for testing the placement of the workpiece and for correcting the three-dimensional path to account for workpiece misplacement, and finishing apparatus operative to move the finishing tool along the three dimensional path in order to perform the finishing task.
摘要:
A system is provided which operates to compare three-dimensional models of inspection gages constructed from computer aided design (CAD) data for a manufactured part and standard geometric dimension and tolerance call-outs to three-dimensional models constructed from inspection data obtained from the manufactured part. The comparison is made both graphically, to assist an operator, and mathematically to determine part condition. Parts are found to be either in tolerance or out of tolerance. If out of tolerance they are found to be either reworkable or scrap. Additionally, the system is capable of determining syntax correctness for tolerance standards, defining the sequence of steps for a specific job prior to job execution, performing individual part tolerance conformance analyses and statistical part tolerance analyses for a population of parts, tolerance analyses for mating parts, and generation of tolerance call-outs for fixed and floating fastener features on parts.