The function of the automobile gauge reference block is mainly divided into three stages, and the characteristics of different stages are obviously different, among which the product verification stage is the most important links. The processing technology of the automobile inspection tool directly affects the completion of the reference block of the entire inspection tool. Therefore, when designing and manufacturing, you must be familiar with the product enough, and with the support of the process, make a high-quality, high-standard reference block for the inspection tool.

1. Product design. For the development of new models, especially brand-new models, there are relatively few reference materials. At this time, the functional main model checker datum block can help to quickly debug, especially in the case of unstable parts and equipment in the early stage, it can become a reference datum.

2. Product verification. At this stage, the functional master mold checker can also play a key role, especially in the trial assembly stage of batch parts, a large amount of design confirmation work can be carried out on the checker reference block.

3. Trial production. The master model can connect the digital prototype car with the production car and various parts. In the trial production stage, conflicts between BIW and interior and exterior decorative plastic parts are often unavoidable. The functional main model checker reference block can effectively determine the root of the problem, thereby guiding the modification of unqualified parts and pointing out the direction for the improvement of product quality.

4. After the standard operating procedure, enter the mass production stage. The main model checker reference block can also be used for daily quality control and problem analysis of parts, especially when product quality fluctuates, whether it is body quality fluctuations or internal and external parts deviations, or the gradual changes and accumulation of both, can be passed The main model checking tool for analysis.

So what are the specific characteristics of the processing technology of the reference block of the inspection tool?

In the inspection of vehicle inspection tooling holes, many main holes and flanges in body stamping parts need to be inspected. In the planning of the reference block of the gauge, a boss with a thickness of about 1 mm is usually added to the details. The base of the boss is on the same axis as the base of the workpiece hole, and the diameter is 5mm larger than the hole diameter. Bosses are checked using the double-line method. When the accuracy of the measured hole is required to be high, the method of positioning the hole is selected, and the plug gauge and bushing are used for inspection.

Regarding the planning of the bottom plate assembly of the reference block of the inspection tool, the outer surface of the inspection details should be stretched for a certain distance along the direction of the reference plane so that the lowest point is greater than the thickness of 150mm. To ensure that the inspection details have satisfactory strength. Try to make the bottom surface of the inspection details, that is, the upper surface (base surface) of the floor assembly, be in the integer position of the vehicle body coordinate system.