刀调仪测量系统Y向自动调节与光学测量的设计研究

摘要

Cutting tool presetter is a measuring instrument for text major parameter and presetting of cutting tools before Numerical control machining,non-traditional machining and high precision machining.But there are some drawbacks in actual operation,it is hard to catch the cutting tools automatic,the relations of imaging size and proportion are not determined,which brings the poor universality.Caption and measurement are currently accomplished through improving accuracy of Charge Coupled Device (CCD) and cross-captive program by manufacturers.According to these problems combining with the existing technology of cutter adjustable instrument on the measuring system structure based on the Y direction of improvement,adjustable instrument can make cutter location determined by infrared sensing technology,with the drive of optic axis smoothly along the Y axis moving knife adjustment device of the measurement system.When guarantee imaging fixed percentage through the principle of autofocus camera distance to adjust the object distance.Not only the tool automatically capture capacity can also reduce research and development and manufacture of high precision photoelectric and the cost of the charge coupled camera device (CCD).%刀调仪是数控加工、特种加工、高精密加工之前对刀具主要参数进行检测、调整的仪器.但在实际的操作中会产生一些弊端,如自动化对刀难、刀具尺寸大小与成像比例关系不固定、通用性差等.目前现有厂商主要是通过提高光电耦合摄像装置(CCD)精度和十字捕捉程序来实现刀具捕捉和测量,但成像比例仍然需要人为调整.本文主要根据上述弊端结合现有技术对刀调仪的测量系统Y方向进行结构上改进,使刀调仪可以通过红外线传感技术确定刀具位置,在光轴的带动下平稳地沿刀调仪的测量系统Y轴移动,并在保证成像比例固定的前提下,通过自动对焦原理对摄像头的相距、物距进行调整.不但实现刀调仪对刀具的自动捕捉能力,也可以减少研发和制造高精度光电耦合摄像装置(CCD)的成本.