【正文】 Last scanner control system development 鞋楦掃描機的控制系統(tǒng)的開發(fā) 1 Introduction In the global footwear industry, which has been China39。s footwear industry is. A short period of 10 years, China has risen remarkably, to the world39。s largest footwear producer and exporter. The rapid development of the footwear industry was driven by the shoe last industry, more and more shoe styles, and also requires constant renovation shoe last, which led to the shoe last from durable goods bee consumables. Mechanical shoe last copying machine is used for processing principle, it implements the shoe last of the production process, bringing the shoe last, the rapid development of industry. But mechanical shoe last machine also has its inevitable drawbacks: First, from the product perspective, it processed by the upper sides of the shoe last, the more obvious Weijidao longitudinal marks, shoe last very smooth, as this request increasing the shoemaking industry, it is unable to meet the requirements of Secondly, mechanical machines in the shoe last of shoe last zoom, manual adjustment of the workforce to use their experience machines, which require workers relatively high。 again, and most important, the traditional processing methods unable to establish workpiece size of the document, they can not do anything to modify the shape. 1 引言 在全球制鞋業(yè)中，中國制鞋業(yè)可謂異軍突起。短短的十多年，中國一躍升為全球 最大的鞋類生產(chǎn)國和出口國。制鞋業(yè)的迅猛發(fā)展也帶動了鞋楦業(yè)，鞋子的樣式越來越多，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。機械鞋楦機采用的是仿形加工的原理，它實現(xiàn)了鞋楦加工的批量生產(chǎn)，帶來了鞋楦業(yè)的飛速發(fā)展。但是機械鞋楦機也有其不可避 免的缺點：首先，從產(chǎn)品角度來講，它加工出來的鞋楦的鞋幫兩側(cè)，總有幾道較明顯的縱痕，鞋楦很不光滑， 這對于要求越來越高的制鞋業(yè)來說，是不能滿足要求的；其次，機械鞋楦機在實現(xiàn)鞋楦的縮放時，需要工人憑經(jīng)驗手工調(diào)整機器，這對工人要求比較高；再次，也是最重要的，傳統(tǒng)的加工方法無法建立工件尺寸的文件，也無法做任何的外形修改。 2 NCshoe last two figures of reverse engineering system Last CNC machine can be avoided mechanical shoe last machine shortings. CNC machine using digital shoe last of the reverse engineering system, the digital system in the reverse engineering of the shoe last model 3D scanning, are threedimensional model of data files, by addressing data file (such as dealing with a smooth surface, interpolation processing, etc.) Implementation of the shoe last scalable model, and change the shoe last machined surface of the helix pitch, thereby improving the quality of surface machining. At the same time, the data files can be stored in puter may need to tune out the same type of shoe last only one scan, management is very convenient. Clearly, the number of such reverse engineering system to meet modern shoe last is the development of the industry. NCfigure shoe last reverse engineering flowchart in Figure 1 below: Figure 1 NC shoe last for the number of reverse engineering flowchart Last abroad NC machine has been very well so far, in the practical application has been greatly affirmed. Our domestic Due to various reasons, a late start, the author of the reference laboratory in foreign machinery under the premise of the practical application as the main purpose of NC Machine for shoe last for domestic enterprises in the area to provide some reference. Last of the NC machines posed of two parts, part scanner, be it by scanning the shoe last threedimensional data, and the other part is carved Last machine, which uses a threedimensional scan data processing by the shoe last. This paper mainly discusses the shoe last scan machine control system design, only by scanning the data files accurately, to ensure processing by the quality of the shoe last, shoe last scan machine of shoe last is the basis and premise for processing. 2 數(shù)控鞋楦機的數(shù)字化逆向工程系統(tǒng) Zoom appearance code revision Last Model 3D Scanning Data Processing Computerassisted analysis Construction of 3D model Computer aided manufacturing Rapid Tooling Last products 數(shù)控鞋楦機可以避免機械鞋楦機的缺點。數(shù)控鞋楦機采用數(shù)