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Technical process of making automobile inspection tools

In the inspection of automobile inspection tools, many important holes and flanges in the body stamping parts need to be inspected separately. In the design of automobile inspection tool production, usually a 1mm thick boss is added to the upper surface of the inspection body. The center of the boss is on the same axis as the center of the workpiece hole, and the diameter is 5mm larger than the hole diameter. Double dashes are used on the boss Ways to detect. When the accuracy of the tested hole is relatively high, the positioning hole is used to detect with a plug gauge and a bushing.

For the design of the bottom plate assembly of the automobile inspection tool, the upper surface of the inspection body is stretched a certain distance along the direction of the reference plane to make the minimum point greater than the thickness of 150mm to ensure that the automobile inspection tool has sufficient strength. The bottom surface of the automobile inspection tool, that is, the upper surface (base surface) of the bottom plate assembly, is at the integer position of the body coordinate system. The bottom plate assembly of the automobile inspection tool manufacturing body is generally composed of a base plate, a channel steel (when necessary, the middle steel is processed), a positioning block and a universal wheel. After the base plate is fixed by the inspection body, other components can be selected according to the actual situation. Standard model.

In the manufacturing process of automobile inspection tools, trimming and punching procedures have always been difficult points in the mold manufacturing process, especially for some large-scale automobile molds such as beveling, diagonal punching, and tilting with complex structures. It is very difficult to determine the trimming line if the traditional production method is adopted, and it requires repeated fumbling several times or even more than ten times, which brings a great workload to the fitter and processing equipment, and not only raises the skill level of the fitter. Requirement, and will seriously affect the debugging of the subsequent process mold. In reality, there are many trimming and punching dies whose cutting edge materials use alloy steel in terms of cost. If the traditional trimming die manufacturing method is used, it is inevitable that the cutting edge will be surfacing multiple times. In the process of multiple surfacing welding, it is easy to crack and cause the insert to be scrapped and have to be refilled and reprocessed. This will not only delay the cycle, but also increase the cost of mold production.

If laser cutting technology is used, for the developed automobile parts, after the drawing pattern sample is successfully tested, laser cutting can be used to replace the trimming and punching process, and cut along the trimming line of the automobile inspection tool. The part is directly used for the next flanging process to test the mold. The final sample obtained is compared with the inspection tool. If there is a difference, the last trimming line is trimmed and cut again by the computer until it succeeds. The entire process of making automobile inspection tools saves two procedures, completely changes the traditional single-wire serial production method, greatly shortens the process flow and reduces the cost of mold production.

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