上蓋砂芯在線位置對中找正裝置探討

時間(jian):2022-09-30 09:56:24

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上蓋砂芯在線位置對中找正裝置探討

摘要:針對鑄造廠聯體缸蓋底盤和上蓋砂芯在線自動化生產線上底盤芯和上蓋芯在運輸過程中相對托盤位置不統一,不能實現自動化組芯的情況研發了對中找正裝置,該裝置(zhi)解(jie)決了聯體缸蓋(gai)底盤芯(xin)和上蓋(gai)芯(xin)在(zai)輸送托(tuo)盤上在(zai)線(xian)位置(zhi)對(dui)中找(zhao)正和定位,進(jin)一步實(shi)現自動(dong)化組芯(xin),具有一定的推廣價值。

關鍵詞:聯體缸(gang)蓋;組芯;對中找(zhao)正

近年來隨著(zhu)生產工(gong)藝要求(qiu)不(bu)斷提高,技術工(gong)種用工(gong)短缺的現(xian)象(xiang)不(bu)斷加劇,推動(dong)傳統產業(ye)(ye)技術改造,加快(kuai)推進(jin)產業(ye)(ye)結構調(diao)整。工(gong)業(ye)(ye)機器(qi)人(ren)和(he)(he)(he)專用機械(xie)在鑄造行業(ye)(ye)廣泛應用,要在鑄造廠聯(lian)(lian)體缸(gang)(gang)蓋(gai)底盤(pan)(pan)(pan)芯(xin)和(he)(he)(he)上(shang)蓋(gai)砂(sha)芯(xin)在線實現(xian)自動(dong)化(hua)組芯(xin),必(bi)須對(dui)(dui)(dui)聯(lian)(lian)體缸(gang)(gang)蓋(gai)底盤(pan)(pan)(pan)和(he)(he)(he)上(shang)蓋(gai)芯(xin)組芯(xin)前進(jin)行在線位(wei)(wei)置(zhi)對(dui)(dui)(dui)中(zhong)找正定(ding)位(wei)(wei),及(ji)保證(zheng)砂(sha)芯(xin)相(xiang)對(dui)(dui)(dui)托盤(pan)(pan)(pan)位(wei)(wei)置(zhi)在組芯(xin)前位(wei)(wei)置(zhi)一致。聯(lian)(lian)體缸(gang)(gang)蓋(gai)砂(sha)芯(xin)經(jing)過機器(qi)人(ren)浸涂轉(zhuan)運(yun)和(he)(he)(he)烘干爐烘干轉(zhuan)運(yun)相(xiang)對(dui)(dui)(dui)托盤(pan)(pan)(pan)位(wei)(wei)置(zhi)已(yi)經(jing)發(fa)生變(bian)化(hua),必(bi)須對(dui)(dui)(dui)其位(wei)(wei)置(zhi)進(jin)行對(dui)(dui)(dui)中(zhong)找正。本設備(bei)針對(dui)(dui)(dui)聯(lian)(lian)體缸(gang)(gang)蓋(gai)底盤(pan)(pan)(pan)芯(xin)和(he)(he)(he)上(shang)蓋(gai)芯(xin)進(jin)行位(wei)(wei)置(zhi)對(dui)(dui)(dui)中(zhong)找正,能夠滿足機器(qi)人(ren)合上(shang)蓋(gai)工(gong)藝需求(qiu)。

1在線位置對中找正結構

聯體缸蓋(gai)底(di)盤芯和(he)上蓋(gai)砂芯在線位置對(dui)(dui)中(zhong)找(zhao)正系(xi)統如圖1所示,由伺服提升(sheng)單元、對(dui)(dui)中(zhong)找(zhao)正外支架、四導柱升(sheng)降單元、砂芯寬度(du)方向對(dui)(dui)中(zhong)找(zhao)正、砂芯長度(du)方向對(dui)(dui)中(zhong)找(zhao)正、托盤定位裝置氣動單元等組成。

1.1伺服提升單(dan)元

通過伺服電(dian)機驅(qu)動(dong)電(dian)動(dong)缸上下運(yun)(yun)行,可以(yi)快速(su)響應精確(que)控制升(sheng)(sheng)降高度,設備運(yun)(yun)行穩(wen)定(ding)可靠(kao),通過PLC控制伺服驅(qu)動(dong)器參數實現升(sheng)(sheng)降高度在規定(ding)范圍內(nei)任(ren)意(yi)可調(diao),用于兼容(rong)不同品種砂芯工藝需(xu)求,升(sheng)(sheng)降重復(fu)精度±0.1mm。

1.2四導柱升降單(dan)元(yuan)

升降單元采用四(si)導(dao)柱形(xing)(xing)式(如圖2),設備剛度好形(xing)(xing)變(bian)小,導(dao)向精準而且運行平穩(wen)。

1.3砂芯寬度

長(chang)(chang)度(du)方(fang)向(xiang)對(dui)中(zhong)(zhong)(zhong)找(zhao)正(zheng)(zheng)該裝(zhuang)置砂(sha)(sha)芯(xin)寬(kuan)(kuan)度(du)方(fang)向(xiang)(圖3)對(dui)中(zhong)(zhong)(zhong)找(zhao)正(zheng)(zheng)運動范(fan)圍(wei)是310mm~470mm,可(ke)以(yi)兼容砂(sha)(sha)芯(xin)寬(kuan)(kuan)度(du)尺寸(cun)320mm~460mm內不同(tong)品種砂(sha)(sha)芯(xin),該裝(zhuang)置砂(sha)(sha)芯(xin)長(chang)(chang)度(du)方(fang)向(xiang)(圖4)對(dui)中(zhong)(zhong)(zhong)找(zhao)正(zheng)(zheng)運動范(fan)圍(wei)是540mm~1180mm,可(ke)以(yi)兼容砂(sha)(sha)芯(xin)長(chang)(chang)度(du)尺寸(cun)550mm~1160mm內不同(tong)品種砂(sha)(sha)芯(xin)。其(qi)對(dui)中(zhong)(zhong)(zhong)找(zhao)正(zheng)(zheng)公共部分包(bao)括(1)驅動氣缸、(2)直線滑塊、(3)夾具(ju)、(4)齒(chi)條、(5)齒(chi)輪,寬(kuan)(kuan)度(du)對(dui)中(zhong)(zhong)(zhong)齒(chi)條安裝(zhuang)在腹(fu)板支架上,長(chang)(chang)度(du)方(fang)向(xiang)對(dui)中(zhong)(zhong)(zhong)找(zhao)正(zheng)(zheng)齒(chi)條利(li)用自身配合導向(xiang)輪組運行(xing)。

1.4托(tuo)盤定(ding)位裝置氣動單元(yuan)

托盤(pan)定(ding)位裝置氣動單(dan)元如圖5所(suo)示,有(1)氣動支架、(2)管路調(diao)壓(ya)器、(3)三(san)位五通(tong)中封電(dian)磁閥(fa)、(4)節流調(diao)速(su)閥(fa)、(5)三(san)軸氣缸(gang)、(6)原點定(ding)位輥輪支架、(7)輥輪組成,通(tong)過管路調(diao)壓(ya)器調(diao)整氣缸(gang)壓(ya)力,電(dian)磁閥(fa)結合控(kong)制單(dan)元實現動作(zuo),節流調(diao)速(su)閥(fa)調(diao)整氣缸(gang)伸出(chu)收回速(su)度。

2工作過程

在(zai)(zai)自動(dong)(dong)化組芯(xin)(xin)(xin)機(ji)器(qi)人(ren)前(qian)輸送輥(gun)道單獨設置一個單工位(wei)(wei)(wei),該(gai)段(duan)輥(gun)道采用(yong)變頻控制(zhi),在(zai)(zai)到(dao)達定(ding)(ding)位(wei)(wei)(wei)位(wei)(wei)(wei)置前(qian)先進(jin)(jin)行(xing)(xing)變頻減速,實(shi)現托盤(pan)慢(man)速到(dao)達定(ding)(ding)位(wei)(wei)(wei)位(wei)(wei)(wei)置實(shi)現托盤(pan)初始粗定(ding)(ding)位(wei)(wei)(wei),再有定(ding)(ding)位(wei)(wei)(wei)裝(zhuang)置對(dui)(dui)托盤(pan)進(jin)(jin)行(xing)(xing)定(ding)(ding)位(wei)(wei)(wei)。托盤(pan)定(ding)(ding)位(wei)(wei)(wei)完成(cheng)后,系統收到(dao)反饋(kui)信號由伺服(fu)電動(dong)(dong)缸(gang)運行(xing)(xing)將四導(dao)柱升降單元下(xia)降到(dao)預定(ding)(ding)高(gao)度(du)(du)(du)(du)并反饋(kui)給PLC系統,高(gao)度(du)(du)(du)(du)到(dao)位(wei)(wei)(wei)后底(di)(di)盤(pan)芯(xin)(xin)(xin)和上(shang)蓋(gai)芯(xin)(xin)(xin)寬(kuan)(kuan)度(du)(du)(du)(du)方向對(dui)(dui)中(zhong)(zhong)找(zhao)(zhao)(zhao)正(zheng)(zheng)氣缸(gang)同(tong)時(shi)(shi)動(dong)(dong)作,利(li)用(yong)齒(chi)輪(lun)齒(chi)條進(jin)(jin)行(xing)(xing)相對(dui)(dui)運動(dong)(dong),將工件(jian)中(zhong)(zhong)心(xin)強(qiang)制(zhi)限定(ding)(ding)在(zai)(zai)齒(chi)輪(lun)中(zhong)(zhong)心(xin)上(shang)。寬(kuan)(kuan)度(du)(du)(du)(du)對(dui)(dui)中(zhong)(zhong)找(zhao)(zhao)(zhao)正(zheng)(zheng)運行(xing)(xing)完成(cheng)后,底(di)(di)盤(pan)芯(xin)(xin)(xin)和上(shang)蓋(gai)芯(xin)(xin)(xin)長度(du)(du)(du)(du)方向對(dui)(dui)中(zhong)(zhong)找(zhao)(zhao)(zhao)正(zheng)(zheng)氣缸(gang)同(tong)時(shi)(shi)動(dong)(dong)作,利(li)用(yong)齒(chi)輪(lun)齒(chi)條進(jin)(jin)行(xing)(xing)相對(dui)(dui)運動(dong)(dong),將工件(jian)中(zhong)(zhong)心(xin)強(qiang)制(zhi)限定(ding)(ding)在(zai)(zai)齒(chi)輪(lun)中(zhong)(zhong)心(xin)上(shang)。經過(guo)寬(kuan)(kuan)度(du)(du)(du)(du)和長度(du)(du)(du)(du)方向對(dui)(dui)中(zhong)(zhong)找(zhao)(zhao)(zhao)正(zheng)(zheng)后,工件(jian)外形(xing)中(zhong)(zhong)心(xin)和齒(chi)輪(lun)中(zhong)(zhong)心(xin)重合,實(shi)現底(di)(di)盤(pan)芯(xin)(xin)(xin)和上(shang)蓋(gai)芯(xin)(xin)(xin)在(zai)(zai)托盤(pan)上(shang)位(wei)(wei)(wei)置對(dui)(dui)中(zhong)(zhong)找(zhao)(zhao)(zhao)正(zheng)(zheng)。實(shi)際生產如圖(tu)6所示,在(zai)(zai)60盤(pan)/h的高(gao)使用(yong)頻率(lv)情(qing)況下(xia)穩定(ding)(ding)可靠(kao)。

3結論

(1)該氣聯體缸蓋(gai)(gai)底盤芯(xin)和上(shang)蓋(gai)(gai)砂(sha)芯(xin)在(zai)(zai)線位置對(dui)(dui)中(zhong)找正的(de)結構,設備(bei)構造簡單可靠,使用維護方便(bian),滿(man)足(zu)下一步自動(dong)化組芯(xin)對(dui)(dui)砂(sha)芯(xin)位置精度(du)的(de)要求。(2)設備(bei)兼容性強,在(zai)(zai)規(gui)定范圍內(nei)的(de)砂(sha)芯(xin)實(shi)現自動(dong)調整降低勞動(dong)強度(du)。為(wei)其他類似(si)需(xu)要對(dui)(dui)中(zhong)找正的(de)情況提供參(can)考。

參考文獻:

[1]王(wang)兵,韓圣(sheng)杰.一種差分氣動定位系(xi)統的設計[J].中國鑄造裝備與技(ji)術(shu),2013(4):13-14.

[2]李庭貴.氣動(dong)機械手搬運物料精確定位控制系統設計(ji)[J].液壓與氣動(dong),2012(1):54-56.

作者:韓圣杰 丁(ding)超豪 范虎楠 單(dan)位:中國電子工程設計(ji)院有限公(gong)司河南分公(gong)司 濰柴動力股份有限公(gong)司