Checking Fixture
Automotive checking fixture plays an important role in manufacturing, with its main function being to measure and evaluate the size, shape, and positional characteristics of parts in industrial production. Inspection tools have provided great assistance to the manufacturing industry.
Automotive Checking Fixture Fundamentals
An automotive checking fixture is a device used to detect workpieces, and its function is to measure and evaluate the dimensional quality of parts. At the production site of the parts, an online inspection of the parts is completed through an automotive fixture testing. The method of using an automotive checking fixture is that technicians need to accurately install the parts on the automotive checking fixture, and then visually inspect or measure the holes of different properties on the parts and the connection orientation between parts through inspection pins or visual checking fixtures. They can also inspect the surface and surroundings of the parts with calipers.
Precautions for Automotive Checking Fixture
The design of automotive checking fixtures, as an important department of automotive checking fixture factories, plays a decisive role in the quality cost of checking fixtures. The design of automotive checking fixture should pay attention to the following points.
- The functionality of the automotive checking fixture cannot be lacking, as the lack of functionality will result in the tool being returned for maintenance at a later stage, increasing the cost of round-trip shipping.
- Poor process and process design may result in a part being processed multiple times without meeting the zero-degree requirement, leading to increased time costs.
- Tolerance setting, set tolerances as needed for parts with different functions to avoid excessive processing and wasting time on some unimportant parts.
- Material and checking fixture design should be selected based on the characteristics of the product to avoid part deformation or excessive design that may lead to cost increases.
The Structure of Automotive Checking Fixture
The basic structure of an automotive checking fixture mainly includes the following parts:
- Functional Component Part: This is the auxiliary working part of the automotive checking fixture, including a quick clamp, positioning pin, detection pin, mobile gap slider, flipping mechanism, measuring table, cardboard, etc. These functional components do not interfere with each other in the open and closed states and do not interfere with the body parts of the car checking fixture.
- Body Part: This is the main working part of the automotive checking fixture, used to simulate the shape and size of the tested parts. The design of the body part needs to meet the requirements of fast and barrier-free access of the product on the checking fixture, while also considering the layout of the testing mechanism and clamp to ensure that it does not affect the product’s access and testing operations.
- Skeleton and Base Part: This is the basic support structure of the automotive checking fixture, used to fix and support other parts of the checking fixture. The design of the skeleton and base needs to meet certain strength and stability requirements to ensure that the checking fixture will not crack, deform, or be damaged during use.
The structural design of the automotive checking fixture needs to meet the requirements of fast and barrier-free access for products on the checking fixture; The various testing mechanisms and clamps on the car checking fixture do not affect the product’s handling when in the open state, and do not affect the testing operation when in the closed state.
Advantages of Automotive Checking Fixture
With the rapid development of the automotive industry in recent years, accidents caused by quality issues have occurred frequently, and people’s requirements for automotive quality control are becoming increasingly high. The safety and quality of automobiles are increasingly valued in their design, which has led to the emergence of automotive checking fixture, which are beneficial for checking the quality and accuracy of workpieces.
Automotive checking fixtures are devices or tools used to control the size of automotive components and the overall vehicle, as well as the matching degree between components, playing an important role in inspecting workpieces. Automotive checking fixtures are equivalent to third-party certification tools for automotive parts companies and vehicle manufacturers. After the initial production of automotive parts is completed, they are placed on specialized automotive checking fixture for testing. Only parts that pass the testing can enter the next production process. Otherwise, it is necessary to improve the processing of automotive parts until they fully meet the design requirements, which can ensure the smooth operation of the entire production line. Therefore, automotive checking fixture can improve the machining accuracy and production efficiency of automotive parts companies and manufacturers, effectively solving the coordination between automotive parts and the consistency of automotive design.
The structure of automotive checking fixture is simple and easy to use, and the manufacturing cost is lower than other measuring technology tools, making them widely used. Especially for automotive product components with relatively large tolerances, there are many random component errors during the production process, and checking fixture has its unique advantages. In the production site of automotive components, checking fixtures is widely used, and judging whether the product is qualified is not the only purpose of using checking fixture.
By analyzing measurement data, identifying the causes of quality issues, providing a reliable scientific basis for further improving production processing or technology, and ultimately achieving the goal of ensuring and improving product quality. In modern automotive factories, especially in automotive factories, the quality inspection and quality control of coverage and body production mainly rely on specialized tools, coordinate measuring machines, portable multi-joint measuring machines, and laser online detection systems.
Common automotive checking fixture is mainly used for the white body of the entire vehicle, interior and exterior parts, and are applied in the development process of new projects and batch production management. They play an important role in mold debugging, production process design optimization, and quality monitoring of batch products during the production preparation stage. Automotive checking fixture are of great significance in shortening project cycles and improving productivity, and product quality. It is a basic process testing equipment in the automotive industry and an important symbol of the rapid development and international integration of manufacturing technology in the automotive industry.
Vehicle inspection is beneficial for completing the inspection of workpieces in a short period, checking whether the shape and quality of the workpieces meet the specified requirements. Check whether the size and shape of the workpiece are within the specified error range through equipment or visual inspection. The use of automotive checking fixture can efficiently ensure product quality.
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