Manufacturer description: factors affecting the accuracy of machining parts
Release Time:
2023-05-15
In the process of machining mechanical parts, the accuracy of parts will be greatly affected by the shape, dimensional accuracy and position; Among them, dimensional tolerances have a great influence on position tolerances
Machining accuracy of mechanical parts
In the process of machining mechanical parts, the accuracy of parts will be greatly affected by the shape, dimensional accuracy and position; Among them, dimensional tolerances have a great influence on position tolerances.
The main factors affecting the machining accuracy of mechanical parts
1. Force deformation
In the process of processing mechanical parts, the process system often has the problem of deformation; Here, it is necessary to withstand the influence of clamping force and gravity; In the face of such a situation, the position of the tool where the machining blank is located will change, forming an error, so that there will be an adverse effect on the machining accuracy; Ultimately, the surface accuracy of the part is also affected.
2. Thermal deformation
When processing mechanical parts, friction may occur in all links; In this way, the temperature is increased, which will cause a very serious impact on the parts and tools of the processing equipment; In this way, the processing accuracy of mechanical parts has also been greatly affected; Thermal deformation occurs in both internal heat sources and external heat sources;
3. The influence of geometric error
The staff should analyze from the perspective of geometric error; In general, human factors are an important factor in the occurrence of geometric errors;
4. Error in processing technology Machine tool error, mainly in the process of machining,
tool and fixture size error; Geometric errors occur in the tool size and the size of the machined part.
Measures to reduce machining errors of mechanical parts
1. Processing error compensation method
Under normal circumstances, processing error compensation often shows a way to reduce error and improve accuracy; In formulating the same magnitude and opposite direction of the original error to show the purpose of canceling the original error and human error; In this way, the machining accuracy will be improved; The following methods are implemented for compensation: first, in the inspection, the size of the part should be measured in real time, so that the control of the tool equipment position can be matched; In this way, the part processing will be within a reasonable range; Second, even parts automatic grinding, in the processing, to those parts with relatively high precision as the fundamental, for the size measurement, to compare according to it.
2, reduce the original error should be the original error factors analysis, according to the specific situation to eliminate the error, so that the mechanical parts processing error can be reduced, in the face of slender shaft processing, for the problem of easy vibration and deformation,
should implement fine processing alternating mode; In the case of strengthening the auxiliary support, the tool and feed will be more reasonable; Stable cutting is also exhibited while preventing further deformation problems.
3. Reduce the interference of external forces on parts
In the operation of the machining process, the equipment will form extrusion force and friction force of the parts; From the analysis of these two forces, the external force will adversely affect the accuracy of the part; In the opening work, it is necessary to carry out a comprehensive inspection and refurbish the equipment that is too tight in the fixed parts; Colleagues, friction on the surface of the device is also difficult to avoid; In order to reduce friction, it is necessary to inspect the equipment and carry out reasonable surface grinding of the equipment; However, the contact surfaces of parts and equipment gain less friction.
4. Reasonable control of temperature
In the case of reasonable control of the temperature of the machining process, the machining accuracy is improved, generally speaking, the temperature has an impact on the machining equipment; In the case of too high or too low temperature, it will affect the operation of the equipment, therefore, if there is a problem of high temperature in processing, it will reasonably implement cold water cooling measures; In the grinding of parts, the machine tool will cause parts and grinding wheel grinding machines under high-speed operation, which will cause a lot of heat; At too high a temperature, it will cause the part to be deformed; Therefore, it is necessary to reasonably adopt the cold water cooling treatment mode; At the right temperature, the machined parts are not affected and the accuracy is improved.
Founded in 2018, the company is located in the high-tech zone of Jianghai District, Jiangmen City, with a plant area of about 15,000 square meters. It specializes in carbon steel and stainless steel welding, medium and large precision machining, and sheet metal production.
Jiangmen Shunhong Equipment Manufacturing Co., Ltd.
Add: Building 3, No. 16, Keyuan Road, Jianghai District, Jiangmen, Guangdong, China
Fax: +86-750-3256199