鑄件能車動(dòng)，磨床磨不動(dòng)的原因：由于鑄件在加工切削時(shí)排屑物呈粉末狀，一般磨床磨削時(shí)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(hào)時(shí)是否正確，通常磨床磨鑄件一般采用代號(hào)TH黑碳化硅砂輪，適合磨削鑄件及非金屬材料。

對(duì)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(tái)平面磨床加工時(shí)應(yīng)該檢測(cè)一下振動(dòng)，如果振動(dòng)過(guò)大還會(huì)影響加工精度，主軸損傷嚴(yán)重。

振動(dòng)大就會(huì)產(chǎn)生噪聲，這款磨床振動(dòng)主軸跳動(dòng)控制在1um以內(nèi)。這種磨床我們?cè)谛聯(lián)Q砂輪時(shí)用臺(tái)灣PY2700G動(dòng)平衡儀，在線上調(diào)下動(dòng)平衡。振動(dòng)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.