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注塑模具加工時的精度與什么因素有關(guān)?

來源:http://coco666.cn/ 日期:2022-02-21

我們的注塑模具在進(jìn)行加工時,對于模具的精度管理方面如何能得到有效提高。需要我們必須要知道哪些問題方面是影響注塑模具生產(chǎn)加工精度的。山東模具制造廠家為大家講解如下:
How can we effectively improve the precision management of our injection mold during processing. First of all, we must know which problems affect the production and processing accuracy of injection mold. Shandong mold manufacturer explained the following:
1.尺寸精度
1. Dimensional accuracy
指加工后零件的實際工作尺寸與零件進(jìn)行尺寸的公差的相符合以及程度。
It refers to the consistency and degree between the actual working dimension of the processed part and the tolerance of the dimension of the part.
尺寸精度由尺寸公差控制。尺寸公差是零件尺寸在切削加工過程中允許的變化量。在基本尺寸相同的情況下,尺寸公差越小,尺寸精度越高。
Dimensional accuracy is controlled by dimensional tolerance. Dimensional tolerance is the allowable variation of part size in the process of machining. When the basic dimensions are the same, the smaller the dimensional tolerance, the higher the dimensional accuracy.
 
2.形狀精度
2. Shape accuracy
指被加工零件表面的實際幾何形狀與理想幾何形狀的重合程度。評定形狀精度有6項,如直線度、平面度、圓度、圓柱度和線輪廓。形狀精度由形狀公差控制。除圓度和圓柱度外,所有形狀公差都分為12個精度等級。1級高,12級低。
It refers to the coincidence degree between the actual geometry and the ideal geometry of the machined part surface. There are 6 items to evaluate the shape accuracy, such as straightness, flatness, roundness, cylindricity and line contour. Shape accuracy is controlled by shape tolerance. Except roundness and cylindricity, all shape tolerances are divided into 12 accuracy levels. Level 1 high, level 12 low.
 
3.位置精度
3. Position accuracy
指加工后零件進(jìn)行有關(guān)研究表面企業(yè)之間的實際工作位置以及精度差別。評定一個位置信息精度的項目有平行度、垂直度、傾斜度、同軸度、對稱度、位置度、圓跳動和全跳動等八項。位置定位精度是用位置公差來控制的,各項活動目的不同位置公差亦分為12個精度評價等級。
It refers to the actual working position and accuracy difference between enterprises after relevant research on machined parts. There are eight items to evaluate the accuracy of a position information, such as parallelism, perpendicularity, inclination, coaxiality, symmetry, position, circular runout and total runout. Positional positioning accuracy is controlled by positional tolerance. For different purposes of various activities, positional tolerance is also divided into 12 accuracy evaluation grades.
通常在設(shè)計機(jī)械零件和確定加工精度時,應(yīng)注意控制位置公差中的形狀誤差,位置誤差應(yīng)小于尺寸公差。
Generally, when designing mechanical parts and determining machining accuracy, attention should be paid to controlling the shape error in the positional tolerance, and the positional error should be less than the dimensional tolerance.

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