力士樂插裝閥蓋板LFA32D-7X/FX15 R900924596，德國REXROTH插裝閥蓋板，購買進(jìn)口液壓、氣動、自動化控制工業(yè)配件，認(rèn)準(zhǔn)“上海韋米機(jī)電設(shè)備有限公司”，7年老店，保證產(chǎn)品原廠原裝，價格優(yōu)惠，售后無憂，歡迎新老客戶咨詢采購！
 
液壓機(jī)是對金屬材料塑料、橡膠和粉末冶金制品進(jìn)行壓力加工的設(shè)備，在工業(yè)部門得到了廣泛應(yīng)用,如金屬材料的拉伸、沖裁彎曲翻邊冷擠壓以及成型加工等，還用于校正、壓裝、粉末冶金制品和磨料制品的壓制成型及塑料制品、絕緣材料的壓制成型等。為完成上述工作,液壓機(jī)應(yīng)能產(chǎn)生較大的壓力,因此,液壓系統(tǒng)工作壓力、尺寸和流量也大,對其設(shè)計要求也高,是較典型的高壓大流量系統(tǒng)。①液壓系統(tǒng)壓力應(yīng)能經(jīng)常變換和調(diào)節(jié),并能產(chǎn)生較大壓力，以滿足不同的工作要求。②空程速度大、加壓時推力大,系統(tǒng)功率大,要求功率利用率高。③空程與壓制時,其速度與壓力相差甚大,所以多采用高低壓泵組或恒功率變量泵供油系統(tǒng).以滿足低壓快速行程和高壓慢速行程要求。

隨著液壓技術(shù)的發(fā)展和普及應(yīng)用，液壓機(jī)有了進(jìn)一步發(fā)展。目前,液壓機(jī)的*大標(biāo)定壓力已達(dá)750 MN。液壓系統(tǒng)在高壓,大流量情況下工作可靠性要好。以滑閥式結(jié)構(gòu)為主的液壓控制閥，由于其結(jié)構(gòu)所限,已不適應(yīng)液壓系統(tǒng)要求。插裝閥有如下特點(diǎn):①通流能力大.阻力小,適合于大流量、高壓時工作。②結(jié)構(gòu)簡單,- - 閥多能,便于實現(xiàn)標(biāo)準(zhǔn)化,有利于加工.裝配和維修。③采用不同性能的先導(dǎo)閥與之配合便可構(gòu)成各種二通插裝閥,實現(xiàn)方向、壓力和流量控制以及復(fù)合控制,設(shè)計選型方便容易。④密封性好,泄漏小,響應(yīng)快。⑤易于實現(xiàn)集成化配置,使系統(tǒng)結(jié)構(gòu)緊湊,便于無管連接,并可有效防止泄漏和污染。因此,插裝閥在液壓機(jī)液壓系統(tǒng)中已得到廣泛應(yīng)用。

(1)Y32系列4柱液壓機(jī),適用于拉伸、彎曲、翻邊、校正，壓裝及冷熱擠壓等工藝加工。①液壓系列采用二通插裝閥,電器控制系統(tǒng)可配置"PC"可編程序控制器,并有獨(dú)立的電器及液壓動力機(jī)構(gòu)。②采用按鈕集中控制,可實現(xiàn)調(diào)整.手動及半自動3種操作方式。③液壓控制采用
整體式插裝閥集成系統(tǒng),泄漏點(diǎn)少、動作可靠使用壽命長。④可實現(xiàn)定壓、定程兩種成型工藝,具備保壓延時功能,延時長短可調(diào)，工作壓力行程可在規(guī)定范圍內(nèi)調(diào)節(jié)。
(2)液壓機(jī)工作。液壓機(jī)工作循環(huán)見所示，液壓機(jī)根據(jù)壓制工藝要求,主液壓缸可完成快速下行→減速壓制→保壓延時→卸壓換向→快速返回→原位停止的循環(huán)工作過程,而且壓力、速度和保壓時間可以調(diào)節(jié)。主要用于輔助液壓缸頂出工件,要求可實現(xiàn)向上頂出→停留→向下退回→原位停止。薄板拉伸時,要求輔助液壓缸上升、停止和壓力回程等輔助動作.有時還需將坯料壓緊,以防周邊起皺。
(3)液壓機(jī)液壓系統(tǒng)工作。液壓機(jī)液壓系統(tǒng)工作原理所示。在分析液壓系統(tǒng)時,可參閱電磁鐵動作順序。液壓泵采用可按壓力自動調(diào)節(jié)排量的恒功率柱塞泵,系統(tǒng)由5個插裝閥集成塊疊加組成,每個集成塊包括多個插裝閥及其先導(dǎo)控制元件.各集成塊組成元件及其作用見表2。

液壓機(jī)液壓系統(tǒng)主要由壓力控制回路、換向回路和,快慢速轉(zhuǎn)換回路等組成,并采用二通插裝閥集成化結(jié)構(gòu)。
(1)采用高壓.大流量和恒功率(帶壓力補(bǔ)償)變量液壓泵供油,并配以由調(diào)壓閥和電磁閥構(gòu)成的電磁溢流閥,使液壓泵空載啟動,主、輔液壓缸原位停止時液壓泵均卸荷,這樣既符合液壓機(jī)的工藝要求,又節(jié)省能源。
(2)采用密封性好，通流能力大和壓力損失小的插裝閥組成液壓系統(tǒng),液壓油路簡單結(jié)構(gòu)緊湊動作靈敏。
(3)利用滑塊自身質(zhì)量實現(xiàn)主液壓缸快速下行,并用充液閥補(bǔ)充油液，使快動回路結(jié)構(gòu)簡單,元件少。
(4)采用由可調(diào)緩沖閥和電磁閥組成的釋壓回路,減少由“保壓”轉(zhuǎn)為“快退"時的液壓沖擊，使液壓機(jī)工作平穩(wěn)。系統(tǒng)在液壓泵的出口設(shè)置了單向閥和安全閥,在主液壓缸和輔助液壓缸的上、下腔進(jìn)出油路上均設(shè)有安全閥。另外,在通過壓力油液的插裝閥F3. F5、F7和F9的控制液壓油路上都裝有梭閥,保證關(guān)閉可靠。這些多重保護(hù)措施保證了液壓機(jī)工作安全可靠。
通過在工業(yè)生產(chǎn)中的應(yīng)用以及進(jìn)一步分析研究可知,該二通插裝閥集成化技術(shù)對進(jìn)--步改善液壓系統(tǒng)的性能還有優(yōu)化的空間，借助二通插裝閥的標(biāo)準(zhǔn)化優(yōu)勢,使整個集成塊控制結(jié)構(gòu)的系列化、通用化也有進(jìn)- -步合理化的空間。

插裝閥與我們所說的普通液壓控制閥有所不同，它的通流量可達(dá)到1000L/min,通徑可達(dá)200～250mm。閥芯結(jié)構(gòu)簡單，動作靈敏，密封性好。它的功能比較單一，主要實現(xiàn)液路的通或斷，與普通液壓控制閥組合使用時，才能實現(xiàn)對系統(tǒng)油液方向、壓力和流量的控制。
插裝閥基本組件
組件由閥芯、閥套、彈簧和密封圈組成。根據(jù)用途不同分為方向閥組件、壓力閥組件和流量閥組件。同一通徑的三種組件安裝尺寸相同，但閥芯的結(jié)構(gòu)形式和閥套座直徑不同。三種組件均有兩個主油口A 和B、一個控制口x 。
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力士樂REXROTH二通插裝閥、定向功能，控制蓋板LFA..H1 
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力士樂REXROTH力士樂REXROTH二通插裝閥、定向功能，控制蓋板LFA..H2
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R900975297 LFA25H2-7X=F=KM
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鍛壓機(jī)床
鍛壓機(jī)床是金屬和機(jī)械冷加工用的設(shè)備，他只改變金屬的外形狀。鍛壓機(jī)床包括卷板機(jī)，剪板機(jī)，沖床，壓力機(jī)，液壓機(jī)，油壓機(jī)，折彎機(jī)等。

液壓機(jī)是一種以液體為工作介質(zhì)，根據(jù)帕斯卡原理制成的用于傳遞能量以實現(xiàn)各種工藝的機(jī)器。液壓機(jī)一般由本機(jī)（主機(jī)）、動力系統(tǒng)及液壓控制系統(tǒng)三部分組成。液壓機(jī)分類有閥門液壓機(jī)，液體液壓機(jī)，工程液壓機(jī)。

液壓機(jī)（又名：油壓機(jī)）液壓機(jī)是一種利用液體靜壓力來加工金屬、塑料、橡膠、木材、粉末等制品的機(jī)械。它常用于壓制工藝和壓制成形工藝，如：鍛壓、沖壓、冷擠、校直、彎曲、翻邊、薄板拉深、粉末冶金、壓裝等等。
它的原理是利用帕斯卡定律制成的利用液體壓強(qiáng)傳動的機(jī)械，種類很多。當(dāng)然，用途也根據(jù)需要是多種多樣的。如按傳遞壓強(qiáng)的液體種類來分，有油壓機(jī)和水壓機(jī)兩大類。

液壓機(jī)是一種以液體為工作介質(zhì)，用來傳遞能量以實現(xiàn)各種工藝的機(jī)器。液壓機(jī)除用于鍛壓成形外，也可用于矯正、壓裝、打包、壓塊和壓板等。液壓機(jī)包括水壓機(jī)和油壓機(jī)。以水基液體為工作介質(zhì)的稱為水壓機(jī),以油為工作介質(zhì)的稱為油壓機(jī)。液壓機(jī)的規(guī)格一般用公稱工作力（千牛）或公稱噸位（噸）表示。鍛造用液壓機(jī)多是水壓機(jī)，噸位較高。為減小設(shè)備尺寸，大型鍛造水壓機(jī)常用較高壓強(qiáng)（35兆帕左右），有時也采用 100兆帕以上的超高壓。其他用途的液壓機(jī)一般采用 6～25兆帕的工作壓強(qiáng)。油壓機(jī)的噸位比水壓機(jī)低。

基本原理是油泵把液壓油輸送到集成插裝閥塊，通過各個單向閥和溢流閥把液壓油分配到油缸的上腔或者下腔，在高壓油的作用下，使油缸進(jìn)行運(yùn)動.液壓機(jī)是 利用液體來傳遞壓力的設(shè)備。液體在密閉的容器中傳遞壓力時是遵循帕斯卡定律。四柱液壓機(jī)的液壓傳動系統(tǒng)由動力機(jī)構(gòu)、控制機(jī)構(gòu)、執(zhí)行機(jī)構(gòu)、輔助機(jī)構(gòu)和工作介質(zhì)組成。動力機(jī)構(gòu)通常采用油泵作為動力機(jī)構(gòu)，一般為積式油泵。為了滿足執(zhí)行機(jī)構(gòu)運(yùn)動速度的要求， 選用一個油泵或多個油泵。低壓（油壓小于2.5MP）用齒輪泵；中壓（油壓小于6.3MP）用葉片泵；高壓（油壓小于32.0MP)用柱塞泵。各種可塑性 材料的壓力加工和成形，如不銹鋼板的擠壓、彎曲、拉深及金屬零件的冷壓成形，同時亦可用于粉末制品、砂輪、膠木、樹脂熱固性制品的壓制。

驅(qū)動系統(tǒng)
液壓機(jī)的驅(qū)動系統(tǒng)主要有泵直接驅(qū)動和泵-蓄能器驅(qū)動兩種型式。泵直接驅(qū)動，這種驅(qū)動系統(tǒng)的泵向液壓缸提供高壓工作液體，配流閥用來改變供液方向，溢流閥用來調(diào)節(jié)系統(tǒng)的限定壓強(qiáng)，同時起安全溢流作用。這種驅(qū)動系統(tǒng)環(huán)節(jié)少,結(jié)構(gòu)簡單,壓強(qiáng)能按所需的工作力自動增減，減少了電能消耗，但須由液壓機(jī)的大工作力和高工作速度來決定泵及其驅(qū)動電機(jī)的容量。這種型式的驅(qū)動系統(tǒng)多用于中小型液壓機(jī)，也有用泵直接驅(qū)動的大型（如120000千牛）自由鍛造水壓機(jī)。

泵－蓄能器驅(qū)動 　在這種驅(qū)動系統(tǒng)中有一個或一組蓄能器。當(dāng)泵所供給的高壓工作液有余量時，由蓄能器儲存；而當(dāng)供給量不足于需要時，便由蓄能器補(bǔ)充供給。采用這種系統(tǒng)可以按高壓工作液的平均用量選用泵和電動機(jī)的容量，但因為工作液的壓強(qiáng)是恒定的，電能消耗量較大，并且系統(tǒng)的環(huán)節(jié)多，結(jié)構(gòu)比較復(fù)雜。這種驅(qū)動系統(tǒng)多用于大型液壓機(jī)，或者用一套驅(qū)動系統(tǒng)驅(qū)動數(shù)臺液壓機(jī)。

沖壓機(jī)是通過電動機(jī)驅(qū)動飛輪，并通過離合器，傳動齒輪帶動曲柄連桿機(jī)構(gòu)使滑塊上下運(yùn)動，帶動拉伸模具對鋼板成型。沖壓機(jī)也叫沖床，學(xué)名為壓力機(jī)。

沖壓機(jī)是通過電動機(jī)驅(qū)動飛輪，并通過離合器，傳動齒輪帶動曲柄連桿機(jī)構(gòu)使滑塊上下運(yùn)動，帶動拉伸模具對鋼板成型。所謂的雙動就是指壓力機(jī)有兩個滑塊，分為內(nèi)滑塊和外滑塊，內(nèi)滑塊帶動模具的凸模或凹模，外滑塊帶動模具上的壓邊圈，在拉伸時壓邊圈首先動作壓住鋼板邊緣，內(nèi)滑塊再動作進(jìn)行拉伸。

設(shè)計原理是將圓周運(yùn)動轉(zhuǎn)換為直線運(yùn)動，由主電動機(jī)出力，帶動飛輪，經(jīng)離合器帶動齒輪、曲軸（或偏心齒輪）、連桿等運(yùn)轉(zhuǎn)，來達(dá)成滑塊的直線運(yùn)動，從主電動機(jī)到連桿的運(yùn)動為圓周運(yùn)動。
連桿和滑塊之間需有圓周運(yùn)動和直線運(yùn)動的轉(zhuǎn)接點(diǎn)，其設(shè)計上大致有兩種機(jī)構(gòu)，一種為球型，一種為銷型（圓柱型） ，經(jīng)由這個機(jī)構(gòu)將圓周運(yùn)動轉(zhuǎn)換成滑塊的直線運(yùn)動。沖壓機(jī)對材料施以壓力，使其塑性變形，而得到所要求的形狀與精度，因此必須配合一組模具（分上模與下模），將材料置于其間，由機(jī)器施加壓力，使其變形，加工時施加于材料之力所造成之反作用力，由沖壓機(jī)機(jī)械本體所吸收。