In recent years, the technology of automobile inspection tool has developed rapidly and become the mainstream technology. Because of its good cutting quality and precision, as well as the processing speed, the automobile industry generally believes that laser cutting in the future is likely to replace stamping become the mainstream automobile inspection technology. Now, we will make a brief introduction to the application of automobile inspection tool technology in automobile mold making.
At the scene of the car parts production, through the car fixture realize online detection of car parts, so need to install auto parts accurately on the car fixture, and then through the visual, or inventory, or caliper profile for car parts, check around, also can use inspection pin or visual different hole on the auto parts and automobile parts and automobile parts connecting position between visual inspection, to ensure that started in the trial production and production to realize auto parts quality status of rapid judgment.
Design requirements for automobile inspection tools:
A. All drawings shall be 1:1 with the actual size and shall be able to indicate the dimensions. In addition:
1. All vehicle inspection parts must be drawn in three views and must be marked with the finished surface and/or body and/or work reference lines.
2. All sections should indicate the section number and page number corresponding to the drawing number of the gage design.
3. The design drawing of the vehicle tester must include the contour drawing (dashed line) of the tested part on the tester. The lines should be thick enough for copying drawings.
4. The list of raw materials for automobile inspection tools shall include the size of raw materials, and all standard parts shall be indicated by the name of the manufacturer and its catalog model.
5. Except in order to clarify manufacturing requirements, the parts drawing of automotive gage should be separated from the gage assembly drawing.
6. All dimensions shall be expressed in metric system, but the dimensions of raw materials in the list of automotive inspection tools may be in English system.
7. If possible, the raw materials of automobile inspection tools (such as corner rack, pileup block, hinge, guide plate, screw and key, etc.) should be purchased standard parts as far as possible.
8. The design of automobile inspection fixture can be computer-aided design or hand-drawn on 1.5 translucent paper.
C. When selecting materials, guide plates, pins, clamps and the first class, consideration should be given to the environment in which the vehicle inspection fixture is used to ensure that the test fixture retains its original functions during the current production period.
D. The scheme of positioning datum must be applied to the design drawings of automobile inspection tools and the inspection tools. The general concept is to position the tested parts in the three-dimensional space consisting of * positioning surface, the second positioning surface and the third positioning surface.
E. Positioning device for positioning reference hole: The test pin not used as the positioning device shall not limit the movement of the measured part in any direction of the non-specified positioning reference. In this case a guide rail or a movable car gage part may be used to allow the part under test to be in flux.
I. Measuring tools shall be designed so that each measuring tool part does not exceed the base of the measuring tool in any moving position.
J. It is not necessary to mark duplicate or left-right symmetry in the design drawing of automobile inspection fixture. When practical, it is only necessary to mark the specific and one-sided details and add the notes of "except for the pointed parts, the central axis symmetry".
