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前言：

伯特利數(shù)控</a><span style="text-align: center;"> 備注：為保證文章的完整度，本文核心內(nèi)容都PDF格式顯示，如未有顯示請刷新或轉(zhuǎn)換瀏覽器嘗試，手機瀏覽可能無法正常使用！</span></p> <p style="text-align: left;"> </p> <p style="text-align: left;">1. 總體結(jié)構(gòu)<br /> 加工中心桁架機械手的設計和分析，可以從兩部分分析，一部分是桁架，另一部分是機械手，對于桁架的分析，可以簡化成梁的分析，它的機構(gòu)就類似于力學當中的結(jié)構(gòu)梁，從力學的角度分析，可以將加工中心桁架與簡支梁做橫向?qū)Ρ?，可以通過簡支梁的彎矩圖分析桁架，增加機械手對桁架的作用力，我們可以畫出如圖i所示的力學分析圖。在^1床士桁架機械手有著很高的耍求，要求機械手有著效率高、可靠性強的要求，對于桁架的立柱選擇，它耍使桁架支撐穩(wěn)定，同時也要節(jié)省加工中心的整體空間，而對于大多數(shù)立柱的結(jié)構(gòu)，都選取鋼結(jié)構(gòu)。</p> <p class="MsoNormal" style="margin-bottom:9.0pt;text-indent:23.0pt;line-height:
7.5pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="151Exact1"><span lang="EN-US" style="font-size:7.5pt;mso-ansi-language:EN-US;mso-fareast-language:EN-US;
mso-bidi-language:EN-US">2.</span></span><span id="pib7cp3p0ajr" class="151Exact1"><span style="font-size:7.5pt">機械手及手臂</span></span></p> <p class="MsoNormal" style="text-indent:23.0pt;line-height:8.0pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">11</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">機械手</span></span></p> <p class="MsoNormal" style="text-indent:23.0pt;line-height:13.45pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">桁架機械手的作用就是起到運輸?shù)淖饔?，它是使工件在上下料的軌道與加工中心內(nèi)之間移動，將加工后的零件從加工中心上拿出，再將要加工的零件從軌道上拿起，放到加工中心上。主要的動作就是：爪張開，抓取，升降，左右移動。對于機械手的手爪設計有很多種方案和形式，可以根據(jù)不同的需求，選擇不同的設計方法。如圖</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">2</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">所示。</span></span></p> <p> </p> <p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph;
text-indent:23.0pt;line-height:13.45pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:
MingLiU;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
EN-US">(1)</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">機械自鎖手爪：對于這種結(jié)構(gòu)，設計者們非常喜歡，因為這種結(jié)構(gòu)很受消費者的喜歡，它的結(jié)構(gòu)比較簡單</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">但是在對抓取上也做了復雜的設計.為了防止在夾持</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">零件時候脫落</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">增加了自鎖裝置。</span></span></p> <p class="MsoNormal" style="text-indent:20.0pt;line-height:13.45pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">連桿杠桿式手爪：這種結(jié)構(gòu)可以從名字上得到啟發(fā)，它的設計就是利用機械連桿機構(gòu)，通過連桿和杠桿的傳遞</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">使手爪夾持和松開</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">但這種機構(gòu)有一個缺點，就是夾持力比較大。</span></span></p> <p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph;
text-indent:20.0pt;line-height:13.2pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">齒輪齒條式手爪：這種機構(gòu)的傳遞性最好，動作反應速度最快，它是通過齒輪之間的傳動來控制手爪，可以實現(xiàn)速度上的突破。</span></span></p> <p class="MsoNormal" style="text-indent:20.0pt;line-height:13.2pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="113Exact7"><span lang="EN-US" style="font-size:7.5pt;
mso-fareast-font-family:MingLiU">2.2</span></span><span id="pib7cp3p0ajr" class="113MingLiU13"><span style="font-size:8.0pt">手臂</span></span></p> <p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph;
text-indent:20.0pt;line-height:13.45pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">對于桁架上機械手的手臂設計時，要考慮機械手臂的載荷，在運動上要實現(xiàn)快速運動，但在機構(gòu)上也要能承受力。在加工中心桁架上的機械手一般做直線運動，所以在考慮手臂設計時候</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:
MingLiU;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
EN-US">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">一般選擇液壓直接驅(qū)動手臂，在機械手臂的液壓缸選用上</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">要使液壓缸的直徑大一些，這樣手臂的整體強度比較高.而對于液壓缸的校核可以通過以下公式進行核對：</span></span></p> <p class="MsoNormal" style="margin-bottom:8.55pt;text-indent:20.0pt;line-height:
13.45pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">活塞桿直徑的校核公式：</span></span></p> <p class="MsoNormal" style="margin-bottom:9.3pt;line-height:6.5pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="208Exact"><span lang="EN-US" style="font-size:6.5pt;
mso-fareast-font-family:MingLiU">d>L</span></span></p> <p class="MsoNormal" style="margin-bottom:3.55pt;text-indent:20.0pt;line-height:
8.5pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">式中：</span></span><span id="pib7cp3p0ajr" class="109Arial1"><span lang="EN-US" style="font-size:8.5pt">F</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">活塞桿上的作用力；</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language:
EN-US;mso-bidi-language:EN-US">[<sub>ff</sub>]—</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">活塞桿材料</span></span></p> <p class="MsoNormal" style="margin-bottom:1.7pt;line-height:8.0pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">的許用應力。</span></span></p> <p class="MsoNormal" style="margin-bottom:23.65pt;text-indent:20.0pt;line-height:
8.0pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">缸體壁厚的校核公式：</span></span></p> <p class="MsoNormal" style="margin-top:0cm;margin-right:0cm;margin-bottom:4.15pt;
margin-left:35.0pt;line-height:10.0pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="60ptExact9"><sup><span lang="EN-US" style="font-size:10.0pt;mso-ansi-language:
EN-US;mso-fareast-language:EN-US;mso-bidi-language:EN-US">2</span></sup></span><span id="pib7cp3p0ajr" class="6TimesNewRoman15"><span lang="EN-US" style="font-size:9.5pt;mso-fareast-font-family:
MingLiU">UH</span></span><span id="pib7cp3p0ajr" class="60ptExact9"><span lang="EN-US" style="font-size:10.0pt;mso-ansi-language:EN-US;mso-fareast-language:EN-US;
mso-bidi-language:EN-US">-</span></span><span id="pib7cp3p0ajr" class="6TimesNewRoman14"><span lang="EN-US" style="font-size:9.5pt;mso-fareast-font-family:MingLiU">i</span></span><span id="pib7cp3p0ajr" class="60ptExact9"><span lang="EN-US" style="font-size:10.0pt;mso-ansi-language:
EN-US;mso-fareast-language:EN-US;mso-bidi-language:EN-US">-3^ </span></span><span id="pib7cp3p0ajr" class="6TimesNewRoman15"><span lang="EN-US" style="font-size:9.5pt;mso-fareast-font-family:
MingLiU">J</span></span></p> <p class="MsoNormal" style="text-indent:20.0pt;line-height:13.45pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">式中：</span></span><span id="pib7cp3p0ajr" class="109Arial1"><span lang="EN-US" style="font-size:8.5pt">D</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">一</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">^</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">缸筒內(nèi)徑；</span></span><span id="pib7cp3p0ajr" class="109Arial1"><span lang="EN-US" style="font-size:8.5pt">p<sub>y</sub></span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">缸筒的試驗壓力。</span></span></p> <p class="MsoNormal" style="margin-bottom:7.35pt;text-align:justify;text-justify:
inter-ideograph;text-indent:20.0pt;line-height:13.45pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">桁架機械手的運動為機械手在桁架上做水平運動，到達指定位置后，機械手下降運動，手爪夾緊工件，帶動工件上升</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">逆向運動，將零件放置到軌道上，手爪松開，在這個期間內(nèi)，有幾個位置</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:
MingLiU;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
EN-US">PLC</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">控制限位器，分別在機械手的下降和上升停止的時候。在機械手將零件從加工中心夾持時候，下一個工件到待定區(qū)域，機械手結(jié)束這個動作后，回到待加工零件位置處</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">機械手下降，夾持零件，將零件放置到加工中心內(nèi)，機械手回到初始位置，</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:
MingLiU;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
EN-US">PLC</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">停止脈沖輸出，加工中心進行加工，機械手完成運動</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">桁架機械手往返做以上運動。</span></span></p> <p class="MsoNormal" style="margin-bottom:4.8pt;text-indent:20.0pt;line-height:
8.0pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:MingLiU;mso-ansi-language:
EN-US;mso-fareast-language:EN-US;mso-bidi-language:EN-US">3.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">驅(qū)動系統(tǒng)</span></span></p> <p class="MsoNormal" style="text-indent:20.0pt;line-height:13.45pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">對于加工中心桁架機械手驅(qū)動方式的選擇可分為回轉(zhuǎn)型和移動型，是通過手指的方法區(qū)分，要是通過機械手夾持的</span></span><span style="font-size: 8pt; text-align: justify;">不同可以分為內(nèi)外兩種。</span></p> <p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph;
text-indent:25.0pt;line-height:13.45pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:
MingLiU;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
EN-US">(</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:
7.5pt;mso-fareast-font-family:MingLiU">1 </span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:
MingLiU;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
EN-US">)</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">氣動驅(qū)動方式：</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">這種控制方式是通過電磁閥來控制機械手.在通過利用氣流調(diào)節(jié)閥來控制機械手的運動速度，這種驅(qū)動的成本比較低，因為得到氣體成本低。</span></span></p> <p class="MsoNormal" style="margin-left:0cm;text-align:justify;text-justify:inter-ideograph;
text-indent:25.0pt;line-height:13.45pt;mso-line-height-rule:exactly;mso-list:
l0 level1 lfo1"><span lang="EN-US" style="font-size:7.5pt;
font-family:"Times New Roman","serif";mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:EN-US">(2)<span style="font-variant-numeric: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: "Times New Roman";">      </span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:
8.0pt">電動驅(qū)動方式：</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">在加工中心桁架機械手設計上，</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">這種驅(qū)動方式使用最頻繁，因為加工中心也需要用電，而這驅(qū)動系統(tǒng)只是需要利用電機，就可以達到速度上的控制。</span></span></p> <p class="MsoNormal" style="margin-bottom:6.15pt;text-align:justify;text-justify:
inter-ideograph;text-indent:25.0pt;line-height:13.45pt;mso-line-height-rule:
exactly"><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;
mso-fareast-font-family:MingLiU;mso-ansi-language:EN-US;mso-fareast-language:
EN-US;mso-bidi-language:EN-US">(</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:MingLiU">3</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">廣液壓驅(qū)動方式：液壓驅(qū)動方式是通過液壓系統(tǒng)進行控制，它的好處就是可以實現(xiàn)連續(xù)位置控制，同時傳動剛度也大</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">液壓驅(qū)動一般選擇液壓馬達作為動力源，液壓驅(qū)動元件的特點見表</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span style="font-size:7.5pt;mso-fareast-font-family:
MingLiU">1,:</span></span></p> <p class="MsoNormal" style="margin-bottom:4.95pt;text-align:justify;text-justify:
inter-ideograph;text-indent:20.0pt;line-height:9.5pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="310ptExact1"><span style="font-size:9.5pt">結(jié)語</span></span></p> <p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph;
text-indent:20.0pt;line-height:13.2pt;mso-line-height-rule:exactly"><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">隨著國內(nèi)不斷地發(fā)展，勞動力成本的不斷提升，加工中心在自動化行業(yè)歡迎程度也隨之提高</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;
mso-fareast-language:EN-US;mso-bidi-language:EN-US">.</span></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">但同時也要將加工中心的配套設施提高上去，尤其對于生產(chǎn)大批零件，機械手也變得尤為重要。對于現(xiàn)代工業(yè)發(fā)展來說，機械手的發(fā)展速度還是不是很快，對于機械手的控制上要采用</span></span><span id="pib7cp3p0ajr" class="109TimesNewRoman5"><span lang="EN-US" style="font-size:7.5pt;mso-fareast-font-family:
MingLiU;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
EN-US">p</span></span><span id="pib7cp3p0ajr" class="109Exact2"><sub><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language:EN-US;
mso-bidi-language:EN-US">LC</span></sub></span><span id="pib7cp3p0ajr" class="109Exact2"><span style="font-size:8.0pt">控制是最方便的，而對于機械手的發(fā)展要不斷去開發(fā)，團結(jié)思想，通過集體設計者們的努力，不要客觀地設計，要將多元素有機結(jié)合起來。</span></span></p> <p style="text-align: center;"><strong>：</strong></p> <p> </p><p> </p> <p> </p> <p>伯特利數(shù)控是一家集銷售、應用及服務于一體的公司。產(chǎn)品包括：<a ><strong>CNC加工中心</strong></a>、<a ><strong>鉆攻中心</strong></a>、<a ><strong>龍門加工中心</strong></a>、<a ><strong>雕銑機</strong></a>、<a ><strong>石墨機</strong></a>、<a ><strong>五軸加工中心</strong></a>、<a ><strong>立式加工中心</strong></a>、<a ><strong>臥式加工中心</strong></a>等。我們機床的生產(chǎn)工廠設在廣東省東莞市，目前其生產(chǎn)的<a >加工中心</a>70%出口，其中出口到歐洲占到50%。我們盡心、盡力、盡意的服務！</p> <p style="text-align: center;"> 聲明：本站文章均來自網(wǎng)絡，所有內(nèi)容不代表本站觀點，本站不承擔任何法律責任！</p> </div> <div id="pib7cp3p0ajr" class="blank30"></div>  <div id="pib7cp3p0ajr" class="blank10"></div> 標簽： <a href='/index.php?case=tag&act=show&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a>    <div id="pib7cp3p0ajr" 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background-color:#FF69B4;} .izl-rmenu .btn-skype:hover{background-color:#8B008B;} .izl-rmenu a.btn-skype,.izl-rmenu a.btn-skype:visited{background:url(/template/CmsEasy_V_408/skin/images/servers/metro_color/r_skype.png) 0px 0px no-repeat; background-color:#FF69B4; text-decoration:none; display:block;} .izl-rmenu .btn-web{background:url(/template/CmsEasy_V_408/skin/images/servers/metro_color/r_web.png) 0px 0px no-repeat; background-color:#008a46;} .izl-rmenu .btn-web:hover{background-color:#00663a;} .izl-rmenu a.btn-web,.izl-rmenu a.btn-web:visited{background:url(/template/CmsEasy_V_408/skin/images/servers/metro_color/r_web.png) 0px 0px no-repeat; background-color:#008a46; text-decoration:none; display:block;} .izl-rmenu .btn-top{background:url(/template/CmsEasy_V_408/skin/images/servers/metro_color/r_top.png) 0px 0px no-repeat; background-color:#666666; display:none;} .izl-rmenu .btn-top:hover{background-color:#444;} </style> <div class="pib7cp3p0ajr" id="top"></div><![endif]-->  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