Fixture Testing
Inspection fixture is a key process equipment for checking whether stamped parts are qualified. In the production of automotive molds and stamping parts, manufacturers need to perform error detection on the profile, contour, angle, etc. of stamping parts in order to ensure product quality. This is an important task that cannot be ignored.
Jig Checking Fixture Fundamentals
Automotive jig checking fixture has been widely used in the automotive manufacturing industry, and more and more automotive manufacturers are using fixture testing as their main measuring method to ensure that the quality of each automotive component meets the specified requirements. Automotive jig checking fixture is a fundamental process jig checking fixture in automotive manufacturing, playing an important role in the automotive industry. The design and manufacturing of jig checking fixture is an important technical task.
The Benefits of Jig Checking Fixture
- Formal Mass Production Stage
The mass production of automobiles indicates that various performance indicators of automobiles are in a stable state. Automobile jig checking fixture are mainly used for daily control of component quality and problem analysis. When encountering quality fluctuations, an automobile jig checking fixture can be used to quickly identify the root cause of problems. Simultaneously monitor the stability of component quality and prevent the occurrence of quality issues.
- Design Phase
The development of new automotive models has few references, and the overall design layout mainly relies on benchmark models. In the early stage, the status of components and process equipment is unstable. At this time, the automotive jig checking fixture can serve as a reference benchmark to help quickly automotive out debugging work. It can be used to evaluate the rationality of component design structure and matching relationship, as well as the rationality of process, and timely discover design problems.
- Trial Production Stage
At this stage, conflicts between the matching of the automotive body and interior and exterior parts are inevitable. On the one hand, automotive jig checking fixture are used to quickly analyze matching problems. By comparing the differences between the matching results of the same component on the automotive body and the functional main model fixture testing, it can be confirmed whether it is a body problem, a component problem, or an assembly problem. On the other hand, it can also discover problems in the design and manufacturing of individual component jig checking fixture, and improve the quality of individual component jig checking fixture.
- Verification Phase
Automotive jig checking fixture play a crucial role in this stage, especially during the trial assembly of actual vehicle components, where many design and process confirmation tasks can be automotiveried out on automotive fixture testing.
Design Requirements for Jig Checking Fixture
The overall structural design of automotive jig checking fixture must consider meeting the classification functions of product and process quality. To improve the structural design of automotive jig checking fixture, there are several basic requirements for the structural design of automotive jig checking fixture.
Good Load-bearing Capacity
- Try to minimize drilling on fixed parts to avoid cracking and reduce stress concentration.
- Reducing friction is beneficial for reducing the required quenching hardness on worn surfaces.
- It is of great help in improving the stability of automotive fixture testing.
Good Strength and High Stiffness
- The high reliability and strength of the structure ensure that the shape is not easily deformed.
- The material of the fixture testing has high hardness, good wear resistance, and good toughness, which is conducive to increasing the high strength of the jig checking fixture.
Reliability and Balance of the Structure
- To reduce the risk of component fracture and failure
- Simplify the overall structure as much as possible
- To ensure smooth clamping action, convenient movement, and handling, the overall structure should not be too large, and the measuring tool components must be within the range of the fixture testing base in the working position.
Precautions for Jig Checking Fixture
Technicians should generally wear work gloves when operating jig checking fixture, and it is strictly prohibited to directly take or touch the working surface of the jig checking fixture with their hands. When operating the moving parts of the jig checking fixture, they should be handled gently and not forcefully collide. The fixture testing cannot be used as a calibration fixture, and parts cannot be corrected on the jig checking fixture. During the use of jig checking fixture, the following aspects should be noted.
- The department using the measuring tool should designate a dedicated person to be responsible for the use and daily maintenance of the measuring tool.
- When inspecting workpieces, excessive force should not be applied, and forced operation is not allowed to cause damage to the fixture testing.
- The use of jig checking fixture should be operated in a civilized and reasonable manner, arranged in an orderly manner, and not randomly picked up or placed.
- As measuring equipment, jig checking fixture cannot be used as substitutes for other tools.
- When abnormal phenomena are found during inspection, such as uneven surfaces, burrs, bending deformation, etc., do not repair them by yourself. It is not allowed to use hammers, files, or sandpaper to polish.
In the use of an automotive jig checking fixture, it is not advisable to measure the workpiece while the machine tool is still rotating to prevent danger to the measuring personnel and damage to the tool. The measurement should be automated after the measured workpiece is in a static state. After using the automotive jig checking fixture, take out the product, clean the surface of the tool, close the clamping device, place the section template back in place, check the pin return to its original position, and wipe the iron fasteners such as the inspection pin, stop fixture testing, and positioning surface clean and apply oil for rust prevention treatment.
Automotive jig checking fixture are precision testing equipment and important tools for controlling the quality of parts. In daily use and maintenance, the improper operation can have a significant impact on the accuracy of the jig checking fixture, resulting in incorrect inspection results and an inability to maximize the use of the jig checking fixture. As a testing device, automobile jig checking fixture must have very high dimensional accuracy and constancy to ensure the stability of their shape and size during use and storage. Therefore, the jig checking fixture material must meet specific mechanical properties, process performance, and appearance surface requirements.
Related News
Applied’s expertise in modifying materials at atomic levels and on an ihdustrial scaleenables our customers to transform possibilities into reality.
