【導(dǎo)讀】在全球制鞋業(yè)中，中國(guó)制鞋業(yè)可謂異軍突起。短短的十多年，中國(guó)一躍升為。全球最大的鞋類生產(chǎn)國(guó)和出口國(guó)。制鞋業(yè)的迅猛發(fā)展也帶動(dòng)了鞋楦業(yè)，鞋子的樣。式越來(lái)越多，就要求鞋楦也要不斷翻新，這促成了鞋楦從耐用品變成易耗品。但是機(jī)械鞋楦機(jī)也有其不可避免的缺點(diǎn)：首先，從產(chǎn)品角度來(lái)講，重要的，傳統(tǒng)的加工方法無(wú)法建立工件尺寸的文件，也無(wú)法做任何的外形修改。

　　

【正文】 00％，位置偏差幾乎為零。此值設(shè)定得較高，可在較小的位置偏差獲得較快反應(yīng)，但可能會(huì)導(dǎo)致超調(diào)。 通過對(duì) ， 參數(shù)的設(shè)置，可以很方便的與各種頻率的指令脈沖相匹配，以達(dá)到理想的控制分辨率 (角度 /脈沖 )。二者的值差異過大會(huì)造成控制精度下降。所以推薦設(shè)置 (即：電子齒輪比 )為： 1/50電子齒輪比 20。 optical grating choice and control In the control system, grating Yaxis device for the collection of data, it installed in the back of scanning round, the scanning process, moving around constantly scanning round, which will stimulate mobile device grating, grating device to collect feedback to the pulse signal movement control card. With practical applications, considering the accuracy, reliability, economy, and other factors, we selected FAGOR MVX225 linear optical grating. It uses the glass chrome scale Ceju 20 um, accuracy of 177。 5um, a resolution of 1 um, the differential output signals to TTL signal, the output signal cycle T for the 4 um, maximum speed of 60 m / min. In this system, nonstop around the grating device needs mobile, and the grating first mobile device using Rolling reading can be minimal decrease wear and tear, greatly improved life, the grating foot mobile life over 9,000 km. FAGOR feedback system provides signals through the plating carved in the chrome line ruler grid through photoelectric conversion signal processing. FAGOR feedback system using infrared lightemitting diodes as a light source, the light source is safe, reliable and long life characteristics. To provide a measurement of the absolute reference point, linear optical grating feedback carved lines near the location of certain reference points marked signal. This signal is marked by a specific line carved a pulse when running through the machine points to determine the absolute position, which is to prevent accidents CNC machine tool brownout rear axle movement errors. FAGOR linear foot every 50 mm grating has a reference point mark Io. This marked the signal and the feedback signal is synchronized, the aim is to ensure reliable measurement accuracy. Actual circumstances, FAGOR MVX225 linear grating device can meet the requirements of the control system. 4． 3 光柵尺的選擇及控制 在本控制系統(tǒng)中，光柵尺用于采集 Y 軸數(shù)據(jù)，它安裝在掃描輪的后面，在掃描過程中，掃描輪不斷前后移動(dòng)，從而帶動(dòng)光柵尺移動(dòng)，光柵尺采集到的脈沖信號(hào)反饋到運(yùn)動(dòng)控制卡。結(jié)合實(shí)際應(yīng)用情況，考慮精度、可靠性、經(jīng)濟(jì)性等各種因素，我們選用 FAGOR MVX225 線性光柵尺。它采用的玻璃鍍鉻刻度柵距為 20um，精度為 177。5um，分辨率為 1um，其輸出信號(hào)為差動(dòng) TTL信號(hào)，輸出信號(hào)周期 “T”為 4um，最大速度為 60m/min。由于在本系統(tǒng)中，光柵尺需要不停前后移動(dòng)，而該光柵尺讀數(shù)頭移動(dòng)采用滾動(dòng)軸承， 可最小限度減小磨損，大大提高使用壽命，該光柵尺的移動(dòng)壽命超過 9000km。 FAGOR 反饋系統(tǒng)提供的電信號(hào)是通過鍍刻在直尺上的鉻線柵格，通過光電處理轉(zhuǎn)換成電信號(hào)。 FAGOR 反饋系統(tǒng)用紅外線發(fā)光二極管作為光源，這種光源具有安全、可靠和壽命長(zhǎng)的特點(diǎn)。 為在測(cè)量中提供一個(gè)絕對(duì)參考點(diǎn)，在線性光柵尺臨近反饋刻線的某些位置提供參考點(diǎn)標(biāo)記信號(hào)。此標(biāo)記信號(hào)是由特定的刻線產(chǎn)生的一個(gè)脈沖，當(dāng)運(yùn)行通過該點(diǎn)時(shí)能確定機(jī)床的絕對(duì)位置，這主要是為防止數(shù)控機(jī)床掉電后軸意外移動(dòng)而產(chǎn)生誤差。FAGOR 線性光柵尺每隔 50mm 就有一個(gè)參考 點(diǎn)標(biāo)記 Io。此標(biāo)記產(chǎn)生的信號(hào)，是和反饋信號(hào)同步的，目的是為保證可靠的測(cè)量重復(fù)精度。實(shí)際情況證明， FAGOR MVX225 線性光柵尺能夠滿足本系統(tǒng)的控制要求。 5 CONCLUSION As mentioned, motion control card, servo systems and optical grating pose a shoe last scanners digital control system. Actual proof, the entire control system stable operation, the data will be scanning documents for shoe last carved Last machining, processing the products very smooth and pletely avoid the mechanical shoe last of the shortings will be able to meet the needs of the market. 5 結(jié)束語(yǔ) 如上，運(yùn)動(dòng)控制卡，伺服系統(tǒng)和光柵尺構(gòu)成了鞋楦掃描機(jī)的數(shù)字控制系統(tǒng)。實(shí)際證明，整個(gè)控制系統(tǒng)運(yùn)作非常穩(wěn)定，將掃描得到的數(shù)據(jù)文件用于鞋楦刻楦機(jī)加工，加工出來(lái)的產(chǎn)品很光滑，完全避免了機(jī)械鞋楦機(jī)的缺點(diǎn)，能夠滿足市場(chǎng)的需求。 References: 1. Xu Qin Sun library for a long, 3D reverse engineering China39。s measures Press 2. Shenzhen Leadshine DMC3000 hardware manual control panel 3. Shenzhen Leadshine DMC3000 manual control panel software 4. Panasonic AC servo motor drive MINAS A series of Use 5. FAGOR grating device for use 參考文獻(xiàn)： 1．許智欽 孫長(zhǎng)庫(kù) 編著 《 3D 逆向工程技術(shù)》 中國(guó)計(jì)量出版社 2．深圳雷賽 DMC3000 控制 板硬件手冊(cè) 3．深圳雷賽 DMC3000 控制板軟件手冊(cè) 4． Panasonic 交流伺服電機(jī)驅(qū)動(dòng)器 MINAS A 系列使用說明 5． FAGOR 光柵尺使用說明