The X-Checker can be used with either a touch probe (such as Renishaw's TP20 and TP200 probes) or a scanning probe (such as the SP25 scan probe). The machine is equipped with OpenDMIS CAD software, which allows CAD models to be used for coordinate machine programming and report measurement results. X-Checker's maximum 3D measurement speed can reach 700mm/sec, the maximum acceleration is 2m/sec2; (X, Y, Z) measurement range is 750mm × 1000mm × 50mm.
European car manufacturers have benefited from the measurement capabilities and measurement flexibility of the GageMax 3D measuring machine developed by Carl Zeiss IMT Corp. The Visteon plant in Duren, Germany, produces thousands of pinions and drive wheels every day. The plant has been using GageMax for direct measurement at bevel gear processing sites for more than a year (no need to control environmental conditions). The quality inspection of the finished bevel gears is performed by the operator of each processing machine. The GageMax measurement strategy of the Visteon plant has reached the necessary measurement flexibility that other products, especially prototypes, can achieve. This measurement planning requires that the correction values ​​be transferred directly to the machine tool. Measurement data was stored and rated by qsSTAT and Zeiss Calypso software. The use case proves that the GageMax measuring machine is insensitive to temperature, vibration and dirt common in the production environment.
At the engine plant of Volkswagen Saxony GmbH in Chemnitz, Germany, the use of the Zeiss measuring machine (2 GageMax and 3 CenterMax measuring machines with manual and automatic loading systems) has shifted part of the traditional measuring task to On the production staff.
According to the full range of workpiece specifications, two measurement systems are required: GageMax measuring machine (measuring range 500mm × 700mm × 500mm) is suitable for measuring balance shaft housing and cylinder front cover; CenterMax measuring machine (measuring range 900mm × 1200mm × 700mm) is suitable Measure the cylinder crankcase and cylinder block cover. In an emergency, the two measurement systems are used interchangeably.
System integration can be achieved with Calypso software, which is especially important when the measuring machine is monitoring the process (requiring more information than the earlier measurement strategy). In addition, the measurement flexibility of the Zeiss measuring machine enables fast, trouble-free process switching and process optimization.
The performance of electronic calipers and electronic micrometers produced by Starrett (LS Starrett Co.) continues to improve to accommodate the most demanding production environments. The 797 Series electronic calipers feature IP65 protection and are resistant to coolant, water, dust, dirt and chips. According to the IEC529 equipment protection class, “IP65†means “6†to prevent dust and particles from entering, and “5†for a nozzle to continuously spray water for 3 minutes from any direction. The 797 series electronic calipers meet German standards. DIN962 requires linear accuracy with a resolution of 0.01mm.
The 795 and 796 Series electronic micrometers meet IP67 protection standards for demanding shop floor environments. In addition to protection against coolant and water, it is also protected from chips, stains, dust and other impurities. “IP67†means that the ability to prevent the ingress of dust and particles is “6â€, and the ability to prevent water immersion in water under specified pressure and time conditions is “7â€. The resolution of the 795 series 796 series electronic micrometer is 0.001 mm, precision. Up to ±0.002mm.
Helmel's Art Whistler commented on traditional shop floor measuring devices. "In current production, it is common practice to rely on functional gauges (such as ring gauges, plug gauges, calipers, etc.) to check the conformity of the workpiece (go /no-go); use hand-held gauges (such as calipers, micrometers, etc.) to obtain actual feature measurements; use gripper gauges to detect feature shapes and mutual positional relationships (such as flatness, run-off, concentricity) Wait)."
According to Whistler, “These traditional dimensional inspection methods have both advantages and disadvantages. Qualification inspections can eliminate unqualified workpieces, but measurement data for statistical analysis and process management is not available. Such gauges are generally inexpensive and fast to detect, but Limited to the detection of discrete features, and subject to wear and tear, requiring periodic verification. Handheld gauges are now being digitized and feedback data can be fed back into the recording device for statistical process control (SPC) analysis and archiving, although many users are still The use of manual recording methods that may introduce errors; because hand-held gauges are susceptible to user operating techniques, their measurement repeatability is not high, and usually limited to one size at a time; although the measurement cost is lower, the gauge The wear and tear is still a problem, and regular verification is also essential. Clamping gauges need to be specially designed and manufactured, and usually require high-precision debugging standard parts, and the standard parts themselves must be verified, so the measurement cost is high. Auxiliary time may also be longer; when the workpiece design changes It may also be necessary to redesign the manufacturing inspection tool to increase the cost and possibly delay the construction period. Such gauges can be dial-pointed (the measurement results cannot be output), but most of the gauges incorporate a linear differential transformer (LVDT). Or a pneumatic gauge can be used to convert the measurement results into a digital signal output. Although the fixture may wear after a long period of frequent use, in general, such gauges have better adaptability and durability. Repeatability."
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