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鑄件能車動，磨床磨不動的原因：由于鑄件在加工切削時排屑物呈粉末狀，一般磨床磨削時都不采用冷卻液，防止鑄件的粉狀排屑嵌入砂輪，從而造成砂輪的切削顆粒不能正常磨削。

其次在選用砂輪型號時是否正確，通常磨床磨鑄件一般采用代號TH黑碳化硅砂輪，適合磨削鑄件及非金屬材料。

對于鑄件的特殊性操作者必須勤修砂輪，以保證砂輪正常磨削鑄件。

立軸圓臺平面磨床加工時應該檢測一下振動，如果振動過大還會影響加工精度，主軸損傷嚴重。

振動大就會產生噪聲，這款磨床振動主軸跳動控制在1um以內。這種磨床我們在新換砂輪時用臺灣PY2700G動平衡儀，在線上調下動平衡。振動值在006-0.5um，后休整砂輪加工。

The reason why the casting can turn and the grinder cannot grind: because the chip removal of the casting is powder during machining and cutting, the coolant is not used during grinding of the general grinder to prevent the powder chip removal of the casting from embedding into the grinding wheel, resulting in the failure of normal grinding of the cutting particles of the grinding wheel.

Secondly, whether the model of grinding wheel is correct or not. Generally, th black silicon carbide grinding wheel is used for grinding castings by grinder, which is suitable for grinding castings and non-metallic materials.

For the particularity of castings, the operator must repair the grinding wheel frequently to ensure that the grinding wheel can grind the castings normally.

The vibration should be detected when machining the vertical shaft circular table surface grinder. If the vibration is too large, the machining accuracy will be affected and the main shaft will be seriously damaged.

Large vibration will produce noise. The vibration spindle runout of this grinder is controlled within 1um. We use Taiwan py2700g dynamic balance instrument to adjust the dynamic balance online when we change the grinding wheel of this grinder. The vibration value is 006-0.5um, and then rest the grinding wheel for processing.