measurement
High precision measuring equipment plays an important role in the process from the digital surveying and mapping involved in the early stage of mold design, to the measurement of mold processing, to the acceptance measurement of molds and the repair measurement of molds in the later stage.There are three coordinate measuring machine, image measuring instrument, and portable joint arm measuring machine suitable for large mould.
Trilinear coordinates detection is a precise measurement method for workpiece inspection.The 3-d coordinate measuring machine is used to test and measure the geometrical tolerance of the workpiece based on the collection and calculation of the coordinates of the spatial points, and the error of the workpiece is determined to be within the tolerance range.The detection system is generally composed of a probe and a contact probe. The probe has a slight contact with the surface of the workpiece, and the coordinates of the measurement points are obtained.In the measurement process, the coordinate measuring machine converts the measurement of various geometrical elements of the workpiece into the coordinate positions of the points on these geometrical elements, and then calculates the dimensions, shapes, relative positions and other parameters of these geometrical elements based on the mathematical model of corresponding geometric shapes by the software.The coordinate measuring machine can be easily connected with CAD to feedback the measurement results to the design and production department in real time, so as to improve the product design or production process.Trilinear detection is sometimes used in reverse engineering design.Typical foreign equipment manufacturers include hickkang Sweden, Zeiss Germany, lez Germany, sanfeng Japan and so on.
Image measuring instrument using image measuring head image collection of artifacts, through digital image processing techniques to extract all kinds of complicated shape workpiece coordinate point on the surface of the recycled coordinate transformation into coordinate measuring and data processing technology in the space of various geometry elements, to calculate the actual size and shape of the workpiece to be measured position and mutual relationship, the complex of the surface of the workpiece contour and shape can be precision measurement.Typical equipment has Sweden hex kang, Japan nikon, Japan sanfeng and so on.