本發明涉(she)及(ji)汽(qi)車變速器(qi)零部件的(de)技(ji)術領域，特別(bie)是一種(zhong)行星齒(chi)輪(lun)架及(ji)其成形工藝。

背景技術：

行星齒(chi)輪(lun)(lun)變速器，屬于一(yi)種齒(chi)輪(lun)(lun)箱，它是由(you)行星齒(chi)圈(quan)(quan)、太(tai)(tai)陽輪(lun)(lun)、行星輪(lun)(lun)(又稱(cheng)衛星輪(lun)(lun))和(he)(he)齒(chi)輪(lun)(lun)輪(lun)(lun)軸組成，根據(ju)齒(chi)圈(quan)(quan)、太(tai)(tai)陽輪(lun)(lun)和(he)(he)行星輪(lun)(lun)的運動(dong)(dong)關系(xi)，可以(yi)實(shi)現輸(shu)(shu)入(ru)軸與(yu)(yu)輸(shu)(shu)出(chu)軸脫離剛(gang)性傳動(dong)(dong)關系(xi)、輸(shu)(shu)入(ru)軸與(yu)(yu)輸(shu)(shu)出(chu)軸同(tong)向或反向傳動(dong)(dong)和(he)(he)輸(shu)(shu)入(ru)與(yu)(yu)輸(shu)(shu)出(chu)軸傳動(dong)(dong)比變化，并在陸用、航海、航空(kong)等交通運輸(shu)(shu)工具中得(de)到廣泛(fan)應(ying)用。

目前(qian)，在(zai)變(bian)速(su)器內的行(xing)(xing)星(xing)齒(chi)輪(lun)架結(jie)(jie)構較為簡單，通過在(zai)本體(ti)側面加設圓柱凸(tu)起構成，整體(ti)結(jie)(jie)構單一，在(zai)安裝與運行(xing)(xing)過程中會(hui)因(yin)為安裝效(xiao)果不(bu)佳、本體(ti)質量重等原因(yin)導致運行(xing)(xing)效(xiao)果差、運行(xing)(xing)耗能高(gao)，同時這種行(xing)(xing)星(xing)齒(chi)輪(lun)對于安裝與空間配合要求(qiu)也較高(gao)。

傳(chuan)統(tong)行(xing)星(xing)齒(chi)輪(lun)架(jia)加工(gong)(gong)方法(fa)采用鑄造(zao)(zao)、焊接(jie)與機(ji)加工(gong)(gong)相結(jie)合的方法(fa)，但存在(zai)(zai)鑄造(zao)(zao)或(huo)焊接(jie)缺陷和(he)(he)內(nei)應力，成(cheng)品機(ji)械性(xing)(xing)能(neng)(neng)(neng)較差等(deng)(deng)問(wen)題。而采用熱鍛和(he)(he)金加工(gong)(gong)相結(jie)合的新工(gong)(gong)藝，行(xing)星(xing)齒(chi)輪(lun)架(jia)機(ji)械性(xing)(xing)能(neng)(neng)(neng)提高(gao)(gao)了，但存在(zai)(zai)表(biao)面易(yi)形成(cheng)氧化皮，機(ji)加工(gong)(gong)切(qie)削量較大、能(neng)(neng)(neng)耗大等(deng)(deng)缺陷。因此，目(mu)前存在(zai)(zai)的行(xing)星(xing)齒(chi)輪(lun)架(jia)加工(gong)(gong)方法(fa)存在(zai)(zai)機(ji)械性(xing)(xing)能(neng)(neng)(neng)差，材(cai)料利用率(lv)相對(dui)較低(di)，能(neng)(neng)(neng)耗高(gao)(gao)等(deng)(deng)缺點，不符合節能(neng)(neng)(neng)環保、綠色制(zhi)造(zao)(zao)的發展趨(qu)勢。

技術實現要素：

為(wei)解決(jue)上(shang)述問題(ti)，本發明(ming)的(de)目(mu)的(de)是提(ti)供(gong)一種利(li)用冷溫結合精(jing)密成(cheng)形(xing)(xing)工藝(yi)(yi)與數控(kong)加工相(xiang)結合的(de)成(cheng)形(xing)(xing)工藝(yi)(yi)，解決(jue)了鑄造、焊接工藝(yi)(yi)存(cun)(cun)在的(de)機(ji)械性(xing)能(neng)差、熱(re)鍛(duan)工藝(yi)(yi)存(cun)(cun)在的(de)表(biao)面(mian)易氧(yang)化(hua)、切削(xue)量大等問題(ti)，抗(kang)疲(pi)勞性(xing)能(neng)提(ti)高了1.5-2倍，材料利(li)用率(lv)提(ti)高50％，安(an)裝空(kong)間小效(xiao)果好的(de)行星齒輪架及其成(cheng)形(xing)(xing)工藝(yi)(yi)。

為實現上述目(mu)的，本發(fa)明(ming)的技術方案：

一(yi)種行星齒(chi)輪(lun)架及其(qi)成形(xing)工(gong)藝，包括本體(ti)、上(shang)表面(mian)(mian)(mian)(mian)(mian)、弧(hu)(hu)形(xing)片、中(zhong)(zhong)(zhong)(zhong)心(xin)孔(kong)、下表面(mian)(mian)(mian)(mian)(mian)、下沉面(mian)(mian)(mian)(mian)(mian)，所述的本體(ti)中(zhong)(zhong)(zhong)(zhong)心(xin)開有(you)中(zhong)(zhong)(zhong)(zhong)心(xin)孔(kong)，本體(ti)上(shang)的兩端面(mian)(mian)(mian)(mian)(mian)分(fen)別為上(shang)表面(mian)(mian)(mian)(mian)(mian)與(yu)下表面(mian)(mian)(mian)(mian)(mian)，上(shang)表面(mian)(mian)(mian)(mian)(mian)上(shang)邊沿(yan)(yan)(yan)(yan)環形(xing)陣列分(fen)別有(you)四個弧(hu)(hu)面(mian)(mian)(mian)(mian)(mian)片，上(shang)表面(mian)(mian)(mian)(mian)(mian)上(shang)還環形(xing)陣列加工(gong)有(you)四個軸孔(kong)，下表面(mian)(mian)(mian)(mian)(mian)上(shang)的中(zhong)(zhong)(zhong)(zhong)心(xin)孔(kong)外(wai)加工(gong)有(you)下沉面(mian)(mian)(mian)(mian)(mian)，兩兩弧(hu)(hu)面(mian)(mian)(mian)(mian)(mian)片之間的本體(ti)邊沿(yan)(yan)(yan)(yan)為凹(ao)槽沿(yan)(yan)(yan)(yan)，凹(ao)槽沿(yan)(yan)(yan)(yan)加工(gong)有(you)防干涉角，其(qi)具體(ti)成形(xing)工(gong)藝，包括以下步(bu)驟：

a、下料：將(jiang)柱形料棒分(fen)段分(fen)割；

b、退火：溫(wen)度600℃，升溫(wen)時(shi)(shi)(shi)間2小時(shi)(shi)(shi)，保溫(wen)時(shi)(shi)(shi)間要2小時(shi)(shi)(shi)，降溫(wen)時(shi)(shi)(shi)每(mei)小時(shi)(shi)(shi)不大于75度，去除棒料的內(nei)應力；

c、沖(chong)孔(kong)：用模具沖(chong)出中心(xin)孔(kong)；

d、車(che)孔：精加(jia)工中心孔至(zhi)尺寸要求(qiu)；

e、拋丸(wan)、磷皂化(hua)：除油(you)銹--水清(qing)洗(xi)(xi)--酸洗(xi)(xi)--水清(qing)洗(xi)(xi)--磷化(hua)--水清(qing)洗(xi)(xi)--干燥--皂化(hua)--風干，產(chan)生磷酸鹽層，降低擠壓(ya)過程中的摩(mo)擦系數；

f、反擠壓：成(cheng)形本體上(shang)的4個弧面片和下沉面；

g、金加工(gong)：車削4個弧面(mian)片外端(duan)(duan)面(mian)和(he)上端(duan)(duan)面(mian)，鏜下(xia)沉(chen)面(mian)下(xia)端(duan)(duan)面(mian)，沖4個軸孔，倒角、去(qu)除毛刺(ci)。

作為優選(xuan)，所述的本體的材(cai)料為SAE1020。

作(zuo)為優(you)選，所述(shu)的本體、弧面(mian)片、中心(xin)孔與下(xia)沉(chen)面(mian)的拐角(jiao)處均做倒角(jiao)處理(li)。

作為優選，所述的本(ben)體為一體式成型(xing)，無(wu)需后續焊(han)接工序。

優(you)點：解決了鑄(zhu)造(zao)、焊接工藝(yi)存(cun)在的(de)(de)機(ji)械性能差、熱鍛工藝(yi)存(cun)在的(de)(de)表面易氧化(hua)、切削量大等(deng)問(wen)題，抗疲勞性能提(ti)(ti)高了1.5-2倍，材(cai)料利(li)用率(lv)提(ti)(ti)高50％。

附圖說明

圖1為本發明的(de)結(jie)構(gou)示(shi)意圖。

圖2為本發明的截面(mian)圖。

圖3為本(ben)發明步驟c完成后(hou)本(ben)體的俯視(shi)圖與剖視(shi)圖。

圖4為本發明步驟(zou)d完成(cheng)后(hou)本體的俯視圖與(yu)剖視圖。

圖5為本發明步驟(zou)f完成后本體的俯(fu)視(shi)圖與剖視(shi)圖。

圖(tu)6為本發(fa)明步驟g完成后本體的俯視(shi)圖(tu)與剖視(shi)圖(tu)。

具體實施方式

如(ru)圖1、2、3、4、5、6所(suo)示(shi)，一(yi)種行星齒(chi)輪架及(ji)其(qi)成形工(gong)(gong)藝，包(bao)括本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)、上(shang)(shang)(shang)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)2發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)、弧(hu)(hu)形片(pian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)3發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)、中(zhong)心(xin)(xin)(xin)(xin)孔(kong)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)4發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)、下(xia)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)6發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)、下(xia)沉面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)7發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，所(suo)述(shu)的(de)本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)中(zhong)心(xin)(xin)(xin)(xin)開(kai)有中(zhong)心(xin)(xin)(xin)(xin)孔(kong)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)4發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)上(shang)(shang)(shang)的(de)兩端面(mian)(mian)(mian)(mian)(mian)(mian)(mian)分別為(wei)上(shang)(shang)(shang)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)2發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)與下(xia)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)6發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，上(shang)(shang)(shang)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)2發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)上(shang)(shang)(shang)邊沿環形陣(zhen)列分別有四(si)個(ge)弧(hu)(hu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)片(pian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)3發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，上(shang)(shang)(shang)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)2發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)上(shang)(shang)(shang)還(huan)環形陣(zhen)列加(jia)(jia)(jia)工(gong)(gong)有四(si)個(ge)軸(zhou)(zhou)孔(kong)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)5發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，下(xia)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)6發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)上(shang)(shang)(shang)的(de)中(zhong)心(xin)(xin)(xin)(xin)孔(kong)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)4發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)外(wai)加(jia)(jia)(jia)工(gong)(gong)有下(xia)沉面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)7發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，兩兩弧(hu)(hu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)片(pian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)3發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)之間的(de)本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)邊沿為(wei)凹槽沿，凹槽沿加(jia)(jia)(jia)工(gong)(gong)有防干涉角(jiao)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)8發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，其(qi)具(ju)體(ti)(ti)成形工(gong)(gong)藝，包(bao)括以下(xia)步驟：a、下(xia)料(liao)(liao)：將(jiang)柱形料(liao)(liao)棒(bang)分段分割(ge)；b、退(tui)火(huo)：溫(wen)度600℃，升溫(wen)時(shi)(shi)間2小(xiao)時(shi)(shi)，保溫(wen)時(shi)(shi)間要2小(xiao)時(shi)(shi)，降(jiang)(jiang)溫(wen)時(shi)(shi)每小(xiao)時(shi)(shi)不大于75度，去(qu)(qu)除(chu)棒(bang)料(liao)(liao)的(de)內應力；c、沖孔(kong)：用模具(ju)沖出中(zhong)心(xin)(xin)(xin)(xin)孔(kong)；d、車孔(kong)：精(jing)加(jia)(jia)(jia)工(gong)(gong)中(zhong)心(xin)(xin)(xin)(xin)孔(kong)至尺寸要求(qiu)；e、拋丸、磷皂化(hua)：除(chu)油(you)銹--水(shui)清(qing)洗(xi)(xi)--酸洗(xi)(xi)--水(shui)清(qing)洗(xi)(xi)--磷化(hua)--水(shui)清(qing)洗(xi)(xi)--干燥--皂化(hua)--風干，產生(sheng)磷酸鹽層，降(jiang)(jiang)低(di)擠(ji)壓過程中(zhong)的(de)摩擦系(xi)數；f、反(fan)擠(ji)壓：成形本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)上(shang)(shang)(shang)的(de)4個(ge)弧(hu)(hu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)片(pian)和下(xia)沉面(mian)(mian)(mian)(mian)(mian)(mian)(mian)；g、金加(jia)(jia)(jia)工(gong)(gong)：車削4個(ge)弧(hu)(hu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)片(pian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)3發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)外(wai)端面(mian)(mian)(mian)(mian)(mian)(mian)(mian)和上(shang)(shang)(shang)端面(mian)(mian)(mian)(mian)(mian)(mian)(mian)，鏜下(xia)沉面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)7發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)下(xia)端面(mian)(mian)(mian)(mian)(mian)(mian)(mian)，沖4個(ge)軸(zhou)(zhou)孔(kong)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)5發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)，倒(dao)(dao)角(jiao)、去(qu)(qu)除(chu)毛刺。所(suo)述(shu)的(de)本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)的(de)材(cai)料(liao)(liao)為(wei)SAE1020。所(suo)述(shu)的(de)本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)、弧(hu)(hu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)片(pian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)3發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)、中(zhong)心(xin)(xin)(xin)(xin)孔(kong)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)4發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)與下(xia)沉面(mian)(mian)(mian)(mian)(mian)(mian)(mian)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)7發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)的(de)拐角(jiao)處(chu)均(jun)做倒(dao)(dao)角(jiao)處(chu)理。所(suo)述(shu)的(de)本(ben)(ben)體(ti)(ti)發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)1發(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)明(ming)(ming)(ming)(ming)(ming)(ming)為(wei)一(yi)體(ti)(ti)式成型，無需后續焊接(jie)工(gong)(gong)序。

本發明(ming)的(de)(de)本體(ti)(ti)1通(tong)過加工(gong)有下沉面7，節省材(cai)料(liao)的(de)(de)同時(shi)降(jiang)低本體(ti)(ti)1質(zhi)量(liang)與方(fang)便(bian)安裝(zhuang)，使得運行能(neng)耗低，更加順(shun)暢，利(li)用冷溫結合精(jing)密成形(xing)(xing)工(gong)藝(yi)(yi)與數控加工(gong)相(xiang)結合的(de)(de)成形(xing)(xing)工(gong)藝(yi)(yi)，解決了鑄(zhu)造、焊接工(gong)藝(yi)(yi)存(cun)在(zai)(zai)的(de)(de)機械性(xing)能(neng)差、熱(re)鍛工(gong)藝(yi)(yi)存(cun)在(zai)(zai)的(de)(de)表面易氧化、切削量(liang)大等問題，抗疲勞性(xing)能(neng)提(ti)高(gao)(gao)(gao)了1.5-2倍，材(cai)料(liao)利(li)用率(lv)提(ti)高(gao)(gao)(gao)50％，安裝(zhuang)空(kong)間(jian)小效(xiao)果(guo)好，通(tong)過步驟e的(de)(de)處理，產生磷酸鹽層，降(jiang)低擠壓過程中的(de)(de)摩擦系數，使得制(zhi)作成型(xing)的(de)(de)本體(ti)(ti)1形(xing)(xing)狀好成品質(zhi)量(liang)高(gao)(gao)(gao)。

本(ben)行(xing)業(ye)的(de)(de)技術人員應該了解(jie)，本(ben)發(fa)(fa)明(ming)不(bu)(bu)受上(shang)(shang)述實施例(li)的(de)(de)限(xian)制，上(shang)(shang)述實施例(li)和(he)說明(ming)書中描述的(de)(de)只是(shi)說明(ming)本(ben)發(fa)(fa)明(ming)的(de)(de)原理，在不(bu)(bu)脫(tuo)離(li)本(ben)發(fa)(fa)明(ming)精神和(he)范圍的(de)(de)前提下，本(ben)發(fa)(fa)明(ming)還會(hui)有各(ge)種變(bian)化(hua)和(he)改進，這(zhe)些變(bian)化(hua)和(he)改進都(dou)落入要求(qiu)保(bao)護的(de)(de)本(ben)發(fa)(fa)明(ming)范圍內。本(ben)發(fa)(fa)明(ming)要求(qiu)保(bao)護范圍由所附的(de)(de)權利要求(qiu)書及(ji)其等效物界定。