The influence of internal force during the processing of machine plate parts

When turning milk of mechanical parts, use the four-jaw chuck to clamp and position the mechanical parts, and use its centripetal force to complete the processing of the mechanical parts. The four-jaw chuck is used for the mechanical parts. Apply a radial force. When the mechanical parts are clamped, the clamping force of the chuck must be matched with the turning processing force of the mechanical parts. When the tool is deep, it is easy to produce a larger turning force on the mechanical parts. In order to avoid When the machine is loosened by the parts and affects the machining, it is necessary to apply a larger clamping force to the mechanical parts and vice versa. However, after the T is added to the mechanical parts and the jaws are released, the shape and size of the finished mechanical parts have a certain deviation from the shape when the T is added on the machine tool, and this deviation The value of is relatively large, generally the circular shape, which seriously affects the machining accuracy of mechanical parts. There are many reasons for this clamping deformation, and certain instructions will be taken during the clamping process of mechanical parts to reduce the clamping deformation. In order to avoid the impact of clamping on the machine parts, the machine parts can be heat treated to eliminate the accuracy errors caused by such deformation.

In addition, in the over-explanation of turning machining of mechanical parts, the clamping method of mechanical parts when finishing and roughing T is the same, and the control of machining deformation of mechanical parts during turning and finishing is reserved. It is processed during grinding. When grinding mechanical parts and adding T, the dimensional reference is mainly based on the reference surface deformed after finishing turning to control the turning accuracy. In the process of turning the mechanical parts, new The deformation of mechanical parts, the accumulation of these deformations will cause the error of machining accuracy to gradually increase. Deviations in any link during the machining of mechanical parts will have a serious impact on subsequent processing, for example: the deviations generated after turning the mechanical parts during machining will accumulate to the next process Ten or there will be a certain deviation during the finishing process of the boring inner hole. This is because the lithium inner hole is processed and positioned on the ground reference surface. The change of the reference will inevitably lead to the accuracy of the tip boring inner hole. There is a certain deviation. Therefore, in the machining process of machine domain parts and components, if the mechanical parts obtained by this method are used in terms of size and machining accuracy, Ufa will meet the requirements of the design drawings. Therefore, in order to solve the impact of mechanical parts clamping on the machining accuracy of mechanical parts, Lei changed the original clamping method of machine-reduced parts on the basis of summarizing the machining characteristics and impacts of mechanical parts. Turning is the starting point, and in the subsequent processes of machining of mechanical parts, corresponding methods are adopted to minimize the influence of the radial force exerted on the mechanical parts when the mechanical parts are clamped. For example: In the process of machining mechanical parts, special tooling is designed for each process, which improves efficiency while using the vertical axis to do well