砂輪平衡支架操作方法
砂(sha)(sha)(sha)輪(lun)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)支架選用(yong)材料作平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)軸(zhou),經熱處理以(yi)及精mi的(de)(de)(de)加工與裝(zhuang)配故而精度(du)(du),性(xing)能穩(wen)定是一理想的(de)(de)(de)機床(chuang)附件。用(yong)它可(ke)以(yi)靜(jing)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)砂(sha)(sha)(sha)輪(lun),以(yi)達到(dao)正確使(shi)用(yong)砂(sha)(sha)(sha)輪(lun)的(de)(de)(de)目的(de)(de)(de)。一般直徑大于(yu)125mm的(de)(de)(de)砂(sha)(sha)(sha)輪(lun)都(dou)要進行(xing)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng),使(shi)砂(sha)(sha)(sha)輪(lun)的(de)(de)(de)重(zhong)心與其旋轉(zhuan)軸(zhou)線重(zhong)合(he)。不(bu)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)的(de)(de)(de)砂(sha)(sha)(sha)輪(lun)在(zai)速(su)旋轉(zhuan)時(shi)會產生振動(dong)(dong)(dong),影響加工質量和(he)機床(chuang)精度(du)(du),嚴重(zhong)時(shi)還(huan)會造成機損壞和(he)砂(sha)(sha)(sha)輪(lun)碎裂. 引起不(bu)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)的(de)(de)(de)原困主要是砂(sha)(sha)(sha)輪(lun)各部分(fen)密(mi)度(du)(du)不(bu)均勻,幾何形(xing)狀不(bu)對稱以(yi)及安裝(zhuang)偏心等。因此在(zai)安裝(zhuang)砂(sha)(sha)(sha)輪(lun)之前都(dou)要進行(xing)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng),砂(sha)(sha)(sha)輪(lun)的(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)有靜(jing)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)和(he)動(dong)(dong)(dong)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)兩種。一般情況下,只需作靜(jing)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng),但在(zai)速(su)磨(mo)削(速(su)度(du)(du)大于(yu) 50m/s)和(he)速(su)度(du)(du)磨(mo)削時(shi),進行(xing)動(dong)(dong)(dong)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)。 平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)時(shi)將砂(sha)(sha)(sha)輪(lun)裝(zhuang)在(zai)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)心軸(zhou)上, 然(ran)后(hou)把裝(zhuang)好心軸(zhou)的(de)(de)(de)砂(sha)(sha)(sha)輪(lun)平(ping)(ping)(ping)(ping)(ping)放(fang)到(dao)砂(sha)(sha)(sha)輪(lun)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)支架的(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)導軌上,砂(sha)(sha)(sha)輪(lun)會作來回(hui)擺(bai)動(dong)(dong)(dong),直至擺(bai)動(dong)(dong)(dong)停止(zhi)。平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)的(de)(de)(de)砂(sha)(sha)(sha)輪(lun)可(ke)以(yi)在(zai)任意位置(zhi)都(dou)靜(jing)止(zhi)不(bu)動(dong)(dong)(dong)。如果砂(sha)(sha)(sha)輪(lun)不(bu)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng),則其較重(zhong)部分(fen)總是轉(zhuan)到(dao)下面. 這時(shi)可(ke)移動(dong)(dong)(dong)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)塊的(de)(de)(de)位置(zhi)使(shi)其達到(dao)平(ping)(ping)(ping)(ping)(ping)衡(heng)(heng)(heng)。
規格(ge):250mm、300mm、400mm、600mm、1000mm, 殊(shu)規格(ge)可以定做(zuo)。
砂輪平衡支架操作方法:根據砂輪孔徑的大小選用相應的平衡心軸。將平衡心軸小頭一端穿入砂輪孔徑內,使之卡緊孔壁,砂輪應與平衡心軸垂直。將裝好平衡心軸的砂輪,輕輕置于平衡器鋼軸上,應使平衡心軸線與平衡器鋼軸垂直,并使用砂輪對稱于鋼軸之間。檢驗時輕輕轉動砂輪,使其緩緩轉動,當砂輪停止時,砂輪上部的頂點為輕點,將平衡砝碼夾子的1/2-2/3的長度卡上,然后將砂輪轉動90°,確定砂輪平衡值是否合格,如不符合標準規定,找出原因,進行返修或作報廢處理。