貴陽齒輪夾具設計
發布(bu)時間：2025-02-02 01:05:01
貴陽齒輪夾具設計
提升機(ji)床(chuang)的(de)(de)精(jing)度和調整精(jing)度：在(zai)上面的(de)(de)誤差(cha)(cha)分析(xi)中(zhong)，我(wo)們得到機(ji)床(chuang)傳動鏈(lian)存在(zai)傳動誤差(cha)(cha)的(de)(de)情況，導致齒(chi)輪(lun)(lun)(lun)出(chu)現運動偏心，影(ying)響到分度蝸(gua)(gua)桿副(fu)(fu)。為了提升齒(chi)輪(lun)(lun)(lun)精(jing)度需(xu)要(yao)(yao)我(wo)們保(bao)證機(ji)床(chuang)本身有著良(liang)好的(de)(de)精(jing)度。齒(chi)輪(lun)(lun)(lun)加工都(dou)是在(zai)機(ji)床(chuang)上完成加工制作，只有保(bao)證機(ji)床(chuang)的(de)(de)精(jing)度才能確保(bao)齒(chi)輪(lun)(lun)(lun)加工的(de)(de)精(jing)度。我(wo)們在(zai)生產(chan)作業(ye)中(zhong)，一旦發現滾齒(chi)后(hou)出(chu)現公法(fa)線表(biao)動超差(cha)(cha)的(de)(de)情況，就需(xu)要(yao)(yao)進(jin)行(xing)檢查(cha)(cha)，檢查(cha)(cha)機(ji)床(chuang)工作臺的(de)(de)嚙(nie)合(he)情況，嚙(nie)合(he)間隙>=0.03mm就需(xu)要(yao)(yao)進(jin)行(xing)調整，需(xu)要(yao)(yao)將其控制到0.03mm以內，不然就需(xu)要(yao)(yao)進(jin)行(xing)蝸(gua)(gua)桿副(fu)(fu)的(de)(de)檢修。我(wo)們在(zai)進(jin)行(xing)滾切斜齒(chi)時，需(xu)要(yao)(yao)注意，計算差(cha)(cha)動掛輪(lun)(lun)(lun)比必須準(zhun)確無誤，一般要(yao)(yao)精(jing)確到小數點的(de)(de)后(hou)六位。
貴陽齒輪夾具設計
固(gu)定(ding)(ding)頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)可(ke)(ke)(ke)以支撐端(duan)面(mian)復雜的(de)(de)零(ling)(ling)件(jian)(jian)和不(bu)(bu)允許打中心孔(kong)(kong)的(de)(de)零(ling)(ling)件(jian)(jian)。頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)主(zhu)要由頂(ding)(ding)(ding)(ding)(ding)針、夾緊(jin)裝置(zhi)(zhi)、殼(ke)體(ti)、固(gu)定(ding)(ding)銷(xiao)、軸(zhou)承(cheng)和芯(xin)軸(zhou)組成。選(xuan)擇固(gu)定(ding)(ding)頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)識(shi)別鈦浩。頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)的(de)(de)一端(duan)可(ke)(ke)(ke)以是(shi)(shi)(shi)頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)中心孔(kong)(kong)或(huo)管(guan)道(dao)的(de)(de)內孔(kong)(kong)，另一端(duan)可(ke)(ke)(ke)以是(shi)(shi)(shi)頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)表(biao)面(mian)的(de)(de)球形(xing)或(huo)錐形(xing)零(ling)(ling)件(jian)(jian)，頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)由夾緊(jin)裝置(zhi)(zhi)固(gu)定(ding)(ding)。當(dang)零(ling)(ling)件(jian)(jian)不(bu)(bu)允許或(huo)不(bu)(bu)能打中心孔(kong)(kong)時(shi)，夾緊(jin)裝置(zhi)(zhi)可(ke)(ke)(ke)以直接夾緊(jin)車削(xue)。殼(ke)體(ti)和芯(xin)軸(zhou)鉆有(you)銷(xiao)孔(kong)(kong)，可(ke)(ke)(ke)以通過(guo)(guo)固(gu)定(ding)(ding)銷(xiao)的(de)(de)銷(xiao)售或(huo)去除來實現頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)的(de)(de)兩(liang)用。頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)也(ye)可(ke)(ke)(ke)用于工件(jian)(jian)的(de)(de)鉆孔(kong)(kong)、牙齒(chi)和鉸孔(kong)(kong)。一種機(ji)床通用的(de)(de)機(ji)床附件(jian)(jian)頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)，由三爪自定(ding)(ding)心卡(ka)盤或(huo)四爪卡(ka)盤通過(guo)(guo)緊(jin)固(gu)件(jian)(jian)連接在殼(ke)體(ti)上，殼(ke)體(ti)與芯(xin)軸(zhou)之間(jian)配(pei)有(you)軸(zhou)承(cheng)，用固(gu)定(ding)(ding)銷(xiao)嵌入配(pei)合。其特點是(shi)(shi)(shi)頂(ding)(ding)(ding)(ding)(ding)部(bu)(bu)一端(duan)是(shi)(shi)(shi)凸出的(de)(de)尖錐和斜花鍵，另一端(duan)是(shi)(shi)(shi)凹陷的(de)(de)半球形(xing)和錐形(xing)盲孔(kong)(kong)。
貴陽齒輪夾具設計
齒(chi)(chi)(chi)輪(lun)(lun)精(jing)度(du)(du)(du)的(de)每(mei)個等級包括(kuo)三(san)個規范(fan)(fan)：齒(chi)(chi)(chi)輪(lun)(lun)運動(dong)精(jing)度(du)(du)(du)、齒(chi)(chi)(chi)輪(lun)(lun)工(gong)作穩(wen)定性精(jing)度(du)(du)(du)和齒(chi)(chi)(chi)輪(lun)(lun)接(jie)觸(chu)精(jing)度(du)(du)(du)。運動(dong)精(jing)度(du)(du)(du)規范(fan)(fan)決(jue)(jue)定了齒(chi)(chi)(chi)輪(lun)(lun)在旋(xuan)轉中(zhong)不(bu)同角(jiao)度(du)(du)(du)的(de)所(suo)有(you)(you)誤差(cha)值(zhi)，以確(que)保(bao)(bao)傳動(dong)速率比(bi)的(de)恒定性。齒(chi)(chi)(chi)輪(lun)(lun)工(gong)作穩(wen)定性規范(fan)(fan)決(jue)(jue)定了齒(chi)(chi)(chi)輪(lun)(lun)在旋(xuan)轉中(zhong)不(bu)同角(jiao)度(du)(du)(du)的(de)所(suo)有(you)(you)誤差(cha)中(zhong)的(de)重(zhong)復(fu)值(zhi)，以確(que)保(bao)(bao)傳動(dong)穩(wen)定性，減少振動(dong)和噪聲(sheng)。齒(chi)(chi)(chi)輪(lun)(lun)接(jie)觸(chu)精(jing)度(du)(du)(du)規范(fan)(fan)決(jue)(jue)定了齒(chi)(chi)(chi)輪(lun)(lun)傳動(dong)中(zhong)嚙(nie)合(he)齒(chi)(chi)(chi)接(jie)觸(chu)點的(de)比(bi)例，以確(que)保(bao)(bao)齒(chi)(chi)(chi)面負荷的(de)均勻分布。由(you)于齒(chi)(chi)(chi)輪(lun)(lun)的(de)使(shi)用(yong)條件不(bu)同，對(dui)上述三(san)種精(jing)度(du)(du)(du)的(de)要(yao)求(qiu)也不(bu)同。雖(sui)然齒(chi)(chi)(chi)輪(lun)(lun)看起(qi)來很小，但它的(de)加(jia)工(gong)步驟相當多，為(wei)了滿(man)足(zu)齒(chi)(chi)(chi)輪(lun)(lun)的(de)精(jing)度(du)(du)(du)要(yao)求(qiu)，所(suo)以整個加(jia)工(gong)過程必須找(zhao)到提高齒(chi)(chi)(chi)輪(lun)(lun)精(jing)度(du)(du)(du)的(de)方法，高端工(gong)具(ju)夾具(ju)的(de)作用(yong)非常(chang)關鍵和重(zhong)要(yao)，以滿(man)足(zu)精(jing)度(du)(du)(du)要(yao)求(qiu)，提高工(gong)作效率。
貴陽齒輪夾具設計
在(zai)圓柱齒(chi)(chi)(chi)輪(lun)加工(gong)(gong)(gong)過程(cheng)中，齒(chi)(chi)(chi)輪(lun)夾(jia)具(ju)的(de)使用(yong)是影響生產(chan)效率和產(chan)品質量(liang)的(de)重要(yao)因素。根據齒(chi)(chi)(chi)輪(lun)結構(gou)和工(gong)(gong)(gong)藝要(yao)求，需要(yao)設計精(jing)(jing)密車輛(liang)、滾齒(chi)(chi)(chi)、插齒(chi)(chi)(chi)、磨齒(chi)(chi)(chi)等專(zhuan)用(yong)工(gong)(gong)(gong)具(ju)夾(jia)具(ju)。如果工(gong)(gong)(gong)件(jian)的(de)定位(wei)基準(zhun)尺寸精(jing)(jing)度(du)(du)不是很高(gao)，也(ye)可(ke)(ke)以通過改(gai)進夾(jia)具(ju)結構(gou)來提(ti)高(gao)定位(wei)精(jing)(jing)度(du)(du)。在(zai)當(dang)今市場(chang)上，在(zai)高(gao)精(jing)(jing)度(du)(du)、高(gao)可(ke)(ke)靠性、高(gao)效自動夾(jia)定位(wei)齒(chi)(chi)(chi)輪(lun)夾(jia)具(ju)齒(chi)(chi)(chi)輪(lun)拉鍵后(hou)，經常使用(yong)錐形(xing)芯(xin)軸(zhou)(zhou)來提(ti)高(gao)齒(chi)(chi)(chi)坯，如圖1所示。利用(yong)錐形(xing)芯(xin)軸(zhou)(zhou)擰緊工(gong)(gong)(gong)件(jian)內孔(kong)，可(ke)(ke)有效保證工(gong)(gong)(gong)件(jian)組裝基準(zhun)與加工(gong)(gong)(gong)基準(zhun)的(de)同軸(zhou)(zhou)度(du)(du)，提(ti)供良好的(de)端面基準(zhun)。但在(zai)使用(yong)過程(cheng)中，工(gong)(gong)(gong)件(jian)需要(yao)在(zai)砧鐵上加固夾(jia)緊，容易損壞(huai)工(gong)(gong)(gong)件(jian)內孔(kong)和“燒蝕”芯(xin)軸(zhou)(zhou)。此(ci)外(wai)，芯(xin)軸(zhou)(zhou)在(zai)兩個(ge)頂部的(de)定位(wei)剛度(du)(du)較(jiao)(jiao)差，因此(ci)端面和徑向跳動在(zai)加工(gong)(gong)(gong)齒(chi)(chi)(chi)坯時較(jiao)(jiao)大。