Development of an automatic appearance and dimensional inspection device for large bolts.
It is possible to perform visual inspection of large bolts and dimensional inspection according to JIS standards. Automatic loading and unloading from the bucket have been achieved.
There are several automatic appearance inspection devices for small bolts available, but none that can accommodate large bolts exceeding M20 and L100mm. Therefore, our company, which specializes in the consistent manufacturing of custom devices from transportation to inspection, was contacted.
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basic information
1. Visual Inspection (Dents) Since the inability to pass a nut is a problem, sensitivity for detecting dents in the threaded area is required. Conversely, if a nut can pass, there is no issue; therefore, if the detection sensitivity is too high, it will affect the yield rate. In our company, by adjusting the lighting and image processing accordingly, we have achieved the detection of large dents that fall within the defective range while not detecting smaller ones that fall within the acceptable range. 2. Dimensional Inspection For the dimensional inspection of the threaded area, compliance with JIS standards is required. We measure the outer diameter, effective diameter, and the R diameter of the thread bottom with a resolution of several tens of micrometers to check if they meet JIS standards. Using a large telecentric lens without lens distortion and special surface lighting, we accurately detect the peaks and valleys of the thread for dimensional measurement. In this way, we achieve automation by combining various equipment and technologies to address workpieces that are highly challenging and for which there are no general-purpose devices available.
Price range
P7
Delivery Time
Applications/Examples of results
We are pleased that users have been able to use it, and that what was previously done manually or visually has been automated with high precision.
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Company information
We are engaged in contract manufacturing of automated labor-saving machines. We provide a comprehensive service from image inspection evaluation to machine design, manufacturing, installation, and startup. With our expertise in automation equipment and image processing, we have achieved significant automation and unmanned operations. Many of our accomplishments involve reducing manpower and automating inspections and tasks across a diverse range of industries and applications, including connectors, electrical components, air conditioning panels, steering systems, charger parts, and clips. Of course, we are confident not only in our flexible design configurations for cameras, lenses, and lighting but also in our quality, delivery times, and costs.