As a core measuring equipment in the field of precision manufacturing, the horizontal projector magnifies the contour of the measured workpiece onto the projection screen through optical projection principle, achieving high-precision geometric parameter measurement. It is irreplaceable in gear, thread and complex contour detection.
In terms of gear measurement, its advantage lies in its ability to detect all elements. Taking the ST5600/5800 series from S-INDUSTRIES in the United States as an example, this equipment is equipped with a 300 × 225mm electric worktable and a 0.001mm optical ruler, which can synchronously measure parameters such as gear pitch circle diameter, tooth thickness, and tooth profile error. By using the built-in 30 °/60 °/90 ° scale line and rotation angle digital display device on the projection screen, the involute deviation of the tooth profile can be accurately captured, with a measurement accuracy of (3+L/50) μ m (L is the measurement length). The Xiangyu horizontal image measuring instrument breaks through traditional limitations and supports vertical gear placement measurement, avoiding fixture positioning errors. With the automatic edge finding function, the single tooth measurement time is shortened to 2 seconds.
In the field of thread detection, horizontal projectors achieve rapid comparison of thread parameters through a transmissive optical system. The CPJ4025W Ø 400 model adopts dual fiber cold light source surface illumination and 200W adjustable bottom light, which can clearly present the profile of threaded teeth. During operation, place the threaded workpiece on the workbench and use the joystick to control the X/Y axis movement to align the projection screen markings with the tooth profile vertices. Directly obtain data such as pitch and tooth profile angle through the reading device. The workbench of this equipment can support a weight of 90kg and can stably support the detection of large shaft threaded parts.
In complex contour measurement scenarios, horizontal projectors demonstrate multidimensional detection capabilities. Taking stamping part contour detection as an example, the ST2460 model achieves shadowless illumination through a 150W × 2 dual fiber cold light source, combined with a 75mm focusing stroke and an adjustable observation angle of ± 15 °, to fully capture the details of the curved transition zone. For micro level contours such as mold cavities, digital horizontal projectors use high-definition CCD imaging and interpolation amplification technology to improve the accuracy of traditional equipment from 0.02mm to 5 μ m, meeting the strict tolerance requirements of aerospace components.
In practical applications, the linkage between the horizontal projector and the QC221 multifunctional data processing device can achieve automatic storage and tolerance analysis of measurement data. A certain automotive parts manufacturer has improved the comprehensive measurement efficiency of gears by 40% by configuring the QC5000 computer software system, while controlling the NG product detection rate within 0.3%, effectively ensuring the quality stability of precision manufacturing.