{"id":13393,"date":"2024-11-22T11:21:44","date_gmt":"2024-11-22T11:21:44","guid":{"rendered":"https:\/\/autforce.com\/testing-systems\/control-jigs\/"},"modified":"2026-04-03T12:03:29","modified_gmt":"2026-04-03T10:03:29","slug":"control-jigs","status":"publish","type":"page","link":"https:\/\/autforce.com\/en\/testing-systems\/control-jigs\/","title":{"rendered":"Inspection Fixture"},"content":{"rendered":"
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Precise inspection fixtures for quality assurance<\/h2>\n\n\n\n

Control jigs & inspection fixtures are essential industrial equipment used in manufacturing and quality control to check <\/strong>components <\/strong>for dimensional accuracy, shape, fit and other specific tolerances<\/strong>. It serves as a reference to ensure that manufactured parts meet the desired specifications and tolerances before they enter further production or assembly processes. Measuring stations enable the continuous and precise recording of component data to ensure compliance with high quality standards. <\/p>\n\n\n\n

Integration of inspection fixtures in automated systems<\/h3>\n\n\n\n

In automated production lines, control jigs can be integrated into robotic systems or inspection stations, which further speeds up the inspection and enables faulty parts to be sorted out automatically.<\/p>\n\n\n\n

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Main functions of a control jig<\/h2>\n\n\n\n
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Dimensional check<\/h3>\n\n\n\n

The control jig is manufactured to check specific dimensions and geometries of the component. It is adapted to the specific shapes and contours of the part in order to detect deviations in length, width, height or specific distances.Typically, this involves adhering to tolerances, as even small deviations could impair the function. <\/p>\n\n <\/div>\n<\/section>\n<\/div>\n<\/div>\n\n\n\n

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Position check and dimensional accuracy<\/h3>\n\n\n\n

Some control jigs are equipped with styli or moving elements that ensure that certain holes, threads or positions on the workpiece are correct. This checks whether critical points are exactly where they should be.This function is particularly important for die-cast parts that require precise mounting points or recesses for other components. <\/p>\n\n <\/div>\n<\/section>\n<\/div>\n<\/div>\n\n\n\n

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Parallelism and flatness check<\/h3>\n\n\n\n

Components can be distorted during production due to thermal effects. The control jig can detect flatness and parallelism errors by scanning the workpiece at several measuring points. Irregularities or deformations are immediately visible when placed in the control jig, which enables reworking or sorting out defective parts. <\/p>\n\n <\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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Visual quality inspection<\/h3>\n\n\n\n

Control jigs can be equipped with optical inspection devices. Visual inspection ensures that there are no surface defects, blowholes (air pockets) or unwanted cracks on the component. This inspection function is often carried out in combination with other mechanical tests. <\/p>\n\n <\/div>\n<\/section>\n<\/div>\n<\/div>\n\n\n\n

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Speed and reproducibility<\/h3>\n\n\n\n

A control jig makes it possible to carry out quality control quickly and reproducibly, as the component is often only placed in the control jig and, if necessary, checked using simple mechanical test equipment such as probes, test pins, sensory probes or similar.This saves time compared to complex measuring methods such as 3D coordinate measuring machines and ensures efficient testing in the production process.<\/p>\n\n <\/div>\n<\/section>\n<\/div>\n<\/div>\n\n\n\n

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Error sorting and documentation<\/h3>\n\n\n\n

In series production, a control jig can help to sort out defective parts directly and document their defect characteristics with the help of our autfactory test bench software<\/a>. This reduces rejects and keeps quality standards constant. <\/p>\n\n <\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n\n\n <\/div>\n\n <\/div>\n

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Difference between control jig and test bench<\/h2>\n\n\n\n

Control jigs and test systems are both used in the quality control of components. The aim of both is to ensure the dimensional accuracy and quality of parts, but they differ fundamentally in their design and functionality. <\/p>\n\n\n\n

Control jigs<\/strong> focus on tolerance checks<\/strong> of shape and dimensions, while test systems<\/strong> carry out more comprehensive functional tests or load tests<\/strong>. While control jigs detect deformations and damage, test systems test how components react under real operating conditions. <\/p>\n\n\n\n

Control jigs are a less complex alternative to testing systems. They are limited in terms of the possible tests, but are more cost-effective and save time in the production process. <\/p>\n\n\n\n

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Measuring of tolerances with laser sensors and touch probes<\/h2>\n\n\n\n

Both laser sensors and touch probes are used in control jigs to measure the tolerances of components.<\/p>\n\n\n\n