Abstract：Accuracy is generally used to judge whether the quality of parts meets the requirements, which is an important criterion for quality evaluation.

The size of the component will affect its own accuracy. With the rapid development of the economy, more and more enterprises have begun to  make auto parts, so that the auto parts industry needs to face more challenges and opportunities, and the competitive environment in the market  is becoming more and more fierce, and most of the enterprises are facing the pressure of survival to a certain extent. Therefore, it is necessary to continuously explore more advanced processing technology, and actively carry out innovation, and comprehensively consider the factors affecting  the accuracy of auto parts, so as to provide maximum guarantee for the quality of auto parts. This paper explores the impact that machining technology may have on the processing of auto parts, and puts forward effective suggestions on how to better improve the accuracy of auto parts.

Key words：machining technology, auto parts, impact and measures

Mechanical equipment needs to be composed of different types of parts. In order to ensure the overall quality, the quality of parts must be guaranteed. However, in the actual production of auto parts, the existence of external factors has a great impact on the quality of parts, which is not only not conducive to the improvement of the overall production efficiency of the enterprise, but also leads to more or less deviations in the parameters of auto parts. Therefore, the analysis of the factors affecting the accuracy of automobile parts can effectively improve the quality of automobile parts.

1 The influence of machining process on the accuracy of automobile parts

1. 1. The influence of geometric error

In the process of automobile manufacturing, a large number of mechanical equipment are needed. With the continuous development of the automobile industry, there are more and more types of mechanical equipment, and more and more advanced. In the process of processing automobile parts, only the efficient use of relevant mechanical equipment can ensure the accuracy of automobile parts to the greatest extent. With the increasing number of mechanical equipment in the manufacturing process, new requirements have been put forward for the accuracy of mechanical parts production, and the control level of the accuracy of automobile parts in the process of producing automobile parts is also constantly improving. Mechanical processing technology is generally based on the set of procedures to carry out the manufacture of parts, in the process of processing to strictly according to the corresponding procedures to start work. If the accuracy of cutting tools and other processing equipment is not enough, the accuracy of auto parts will be affected in the actual processing process, which will continue to affect the quality of the car.

In the process of actual processing, the spindle of the machine tool mainly plays a role of transmission. The rotation of the spindle will greatly affect the flatness of the workpiece itself. If there is a problem in the rotation, the overall accuracy of the workpiece will be reduced. In the process of processing, the spindle will produce rotation error for some reasons, that is, the spindle will cause the deviation of the accuracy of the final manufactured automobile parts due to the deviation from the central axis in the process of rotation. The factors that lead to the rotation deviation of the spindle are as follows. On the one hand, after a long period of work, the spindle has been worn to a certain extent, and the matching degree of the bearing is reduced. This is a problem that the spindle will inevitably appear through long-term work. In order to avoid the problem of spindle rotation error caused by the long-term work of the spindle, the staff should be able to install the equipment strictly according to the relevant instructions and standards, and do a good job in its protection work in the later work, reduce the impact caused by excessive wear, so that the problem of rotation error can be reduced to the greatest extent, and avoid the existence of rotation error. The accuracy of automobile parts is affected to a certain extent, especially for some special automobile parts. The accuracy of the tool will greatly affect the accuracy of the auto parts, because the tool will cause a certain degree of wear problems due to the friction between each other in the process of cutting the parts. After a long time of work and wear, the roughness of the surface of the auto parts will be greatly improved, and the cutting color and shape of the parts will be affected, and the phenomenon of vibration will occur. The wear problem of the tool will also reduce the working efficiency of the tool and reduce the accuracy of the cutting. In order to effectively improve the accuracy of the cutting tool, the wear-resistant material can be selected when the tool material is selected, and the lubricant should be reasonably applied, so as to effectively reduce the wear problem of the tool in the process of cutting the automobile parts, so that the tool can be used more durable.

1. 2. Affected by heat and stress

In the current industrial field, machining has become an important part, and in the process of machining, there is a very close relationship between the accuracy of parts and the construction process. Therefore, the parts of mechanical equipment will not only affect the quality of mechanical equipment, but also affect the accuracy of automobile parts through the processing process, resulting in a significant reduction in the durability of mechanical equipment. There are some problems in the materials used in the processing of some automobile parts. For example, the raw materials of the parts may be affected by the external force and temperature during the processing, which may lead to the problem of cracks in the final material or the result of deformation. Excessive stress or inappropriate temperature will have a serious impact on the quality of raw materials. The main role of the  tool is to cut the parts of the car, but in the actual shearing process, the temperature of the shearing process will continue to rise due to mutual friction. Affected by the high temperature, the tool will deform. In the process of machining parts of automobiles, it is necessary to make a reasonable choice of tools. At the same time, the staff should pay attention to the degree of cutting and avoid certain deformation of the tool by cooling in time. Because the tool itself produces a certain amount of heat during processing, thermal deformation will eventually occur due to the continuous increase of temperature, which will have a direct impact on the accuracy of auto parts. In the process of cooling the parts themselves, it may also be due to the improper temperature distribution, resulting in the problem of uneven heating of the parts themselves, which makes the workpiece produce a certain deformation problem, and has to increase the number of cutting, which leads to a significant reduction in the overall accuracy of the workpiece.

1. 3. The influence of machining operation

Clamping and adjustment work is an important task in the processing of automotive components. The actual processing process is carried out according to a certain processing sequence, and multiple adjustments and clamping work are required during this process. The manual operation of the staff will be difficult to complete the relevant work in a standardized manner, ensuring the accuracy of the components, and the relative position of the cutting tool and the workpiece cannot be easily adjusted by humans. However, once a small error occurs in this process, it may have a prominent impact on the processing volume of automotive components, and its error will continue to expand in the subsequent processing process. Therefore, in the process of processing automotive components, operators should strictly follow relevant regulations to carry out scientific operations, so as to effectively avoid errors caused by the adjustment and clamping process on the accuracy of automotive components. For the production process of producing a large number of automotive parts, the processing process can rely on relevant tools for auxiliary operations to minimize the deviation caused by adjustment and clamping work in automotive parts. In the process of processing automotive components, measurement is a fundamental task that can ensure that the accuracy of the processed automotive components is within a reasonable range. At the same time, through measurement, problems can be identified in a timely manner and adjustments can be made to the problems that arise. The accuracy of measurement will also greatly affect the accuracy of automotive components. If scientific measurement methods are not used and the tools used are not selected correctly during the measurement process, it will also lead to deviation in the accuracy of the final automotive components, In order to minimize measurement errors as much as possible, measurement personnel should carry out relevant operations in a standardized manner to ensure the scientific nature of the operation process to the greatest extent possible.

2 Perfect measures to improve the machining accuracy of mechanical parts

2.1 Improve the system equipment of mechanical processing

For the processing process of automobile parts, it is necessary to select automobile processing equipment with excellent performance, so as to ensure the quality of automobile parts, but also to ensure that the processing process is more accurate and improve the accuracy of the workpiece itself. However, in the actual situation of processing equipment, there is not enough funds to upgrade the equipment, and there is no active innovation and development of the equipment, so as to further improve its performance. And in the actual processing process, the process equipment that can be selected for mechanical processing is seriously simplified. In order to effectively guarantee the accuracy of automobile parts, it is necessary to strengthen the research and development of equipment. The relevant departments need to give sufficient support to it in terms of funds, so that the mechanical processing equipment can be improved to a certain extent in terms of performance. Innovation and upgrading, and through the active use of science and technology to effectively improve the processing accuracy of automobile parts. In view of the procurement of mechanical equipment, it is necessary to complete the formulation of the relevant procurement plan in advance, and scientifically plan the specific amount, and clarify the corresponding material list. According to the demand, the procurement of processing equipment is unified. After the procurement of equipment, it is necessary to carefully check the purchased equipment, so as to ensure its eligibility. In addition, the installation process of mechanical equipment is relatively complex, so in the process of installation, professional personnel are needed to carry out the installation work, so as to effectively prevent the wrong installation, and in the process of transforming and updating the mechanical processing equipment, it is necessary to be able to accurately find some of the errors that occur, and compensate the corresponding errors in time, effectively control the error values within a reasonable range, and control the errors well, so as to effectively improve the machining accuracy of mechanical equipment.

2.2 Ensure the thoroughness of the processing flow

In the process of processing automotive components, it is necessary to use the mechanical processing technology as the basis to complete the drawing of the mechanical processing diagram, ensuring its scientific and effective nature to the greatest extent, so as to provide effective basis for the processing process and standardize the overall processing process. At the same time, in the process of designing the flowchart of mechanical processing, it is also necessary to consider the performance of the vehicle itself and the overall application direction of the vehicle, in order to provide assurance for the accuracy of the design drawings. At the same time, mechanical processing operators must strictly complete the processing operations according to the corresponding drawings. In the process of actual work, designers need to plan the processing time uniformly based on the actual needs of mechanical equipment. This can effectively improve the economic benefits of the enterprise, while also ensuring the accuracy of automotive parts, so that the processing quality of automotive parts can meet the performance requirements of the car.

2.3 Strengthen technical training, improve the quality of personnel

In the process of processing automobile parts, professional technicians are the key factors to ensure the smooth development of related work. There are some processing enterprises, and the processing technology is the key factor for the long-term development of the enterprise. Therefore, the problem of talent cultivation is neglected. Although the enterprise has high-end technology, if it lacks professional talents who can play a role in technology, the development process of the enterprise will be hindered to a certain extent, which will directly affect the accuracy and quality of automobile parts. Therefore, enterprises should pay attention to the training of staff, and constantly improve the professional level of operators and technicians, so as to form a high level of professional operation team. Only by constantly improving the overall level of the operation team, can we effectively improve the overall efficiency of the automobile parts processing industry, improve the accuracy of automobile parts processing, and ensure that enterprises can obtain greater economic benefits.

2.4 Reducing the interference of external forces on automobile parts

In the process of machining, the force generated by mechanical equipment on parts is mainly concentrated on extrusion force and friction force, so the control of these two forces can be emphasized in reducing the influence of external forces on the accuracy of parts processing. Before the daily processing work is carried out, it is necessary to carry out a comprehensive inspection of the mechanical processing equipment. If the parts are loose in the equipment, it should be tightened in time, and the existing fault problems should be refurbished in time, so as to effectively reduce the impact of the external force generated by the equipment on the accuracy of auto parts. In the actual processing process, the mechanical processing equipment inevitably needs to produce a certain friction effect on the workpiece when it is working, and the friction force on the surface will further increase after a long period of work. Therefore, in the later stage, the equipment should be regularly polished in the process of overhauling the equipment, so as to effectively reduce the friction generated and avoid the accuracy of the parts due to the existence of friction in the process of processing. Therefore, the control of external force is an important measure to ensure the accuracy of automobile parts. It needs to be paid attention to by operators and reduce the impact of external force as much as possible.

3 Conclusion

In summary, the development of science and technology drives the continuous progress of mechanical processing technology, and at the same time, the technology of mechanical processing is constantly undergoing innovative development. In the process of processing automotive components, enterprises are also continuously strengthening their control level of accuracy. Therefore, in the process of processing automotive components, it is necessary to fully consider the key factors that affect the processing of automotive components, and formulate corresponding targeted solutions to further improve the overall quality of automotive components, meet the development needs of the automotive industry to the greatest extent, and enable enterprises to obtain more significant economic benefits in the process of development, Provide a continuous source of power for the process of socio-economic development.

 

1. FAQ: How do I choose the right auto part for my vehicle?

• Answer: Selecting the right auto part involves considering your vehicle's make, model, and year. Utilize online catalogs or consult with experts for accurate compatibility information.

2. FAQ: What's the importance of OEM vs. aftermarket auto parts?

• Answer: OEM (Original Equipment Manufacturer) parts are produced by the vehicle's manufacturer, ensuring precise fit and quality. Aftermarket parts are made by third parties. Choose OEM for perfect fit, and aftermarket for cost-effectiveness.

3. FAQ: How can I ensure the longevity of my auto parts?

• Answer: Regular maintenance, proper installation, and using high-quality lubricants can extend the life of your auto parts. Follow manufacturer guidelines for maintenance schedules.

4. FAQ: Are refurbished auto parts a reliable option?

• Answer: Refurbished parts can be cost-effective and environmentally friendly. However, ensure they come from reputable sources, have been thoroughly inspected, and come with warranties for peace of mind.

5. FAQ: What's the average cost of common auto parts replacement?

• Answer: The cost varies widely based on the part and vehicle type. Factors include brand, quality, and labor costs. Research local suppliers, request quotes, and compare prices to get an accurate estimate.

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