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如何降低注塑机机械手的生产误差

时间:2019-09-18  来源:本文搜集于网络,由冲压上下料机械手厂家创盈时代整理,欢迎转载,转载注明出处  点击:35

现在很多机械生产厂家,都在选择用注塑机机械手作为主要生产方式,但在生产中使用自动化机械手能够提高产品的生产效率和产品质量以及在降低产品的生产成本都大有提高,在生产中注塑机机械手能否准确地工作,实际上是一个三维空间的定位问题,是若干线量和角量定位的组合,影响单个线量或角量定位误差的因素如下:
Now many machinery manufacturers, are choosing to use injection molding machine robot as the main mode of production, but the use of automated robots in production can improve productivity and product quality, as well as in reducing the production costs of products have greatly improved, in the production of injection molding machine robot can work accurately, In fact, it is a three-dimensional space positioning problem, is a combination of several line quantity and angular positioning, affecting the individual line volume or angular positioning error factors are as follows:

定位方式,不同的定位方式影响因素不同,如机械挡块定位时,定位精度与挡块的刚度和碰接挡块时的速度等因素有关。定位速度,定位速度对定位精度影响很大。这是因为定位速度不同时,必须耗散的运动部件的能量不同。通常,为减小定位误差应合理控制定位速度,如提高缓冲装置的缓冲性能和缓冲效率,控制驱动系统使运动部件适时减速。

Positioning mode, different positioning mode influencing factors are different, such as mechanical block positioning, positioning accuracy and the stiffness of the block and the speed of hitting the block and other factors. The positioning speed has a great influence on the positioning accuracy. This is because the positioning speed is different and the energy of the moving parts that must be dissipated is different. In general, in order to reduce positioning error, the positioning speed should be reasonably controlled, such as improving the buffer performance and buffer efficiency of the buffer, the control drive system to slow down the moving parts in time.

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精度,机械手的制造精度和安装调速精度对定位精度有直接影响。刚度,机械手本身的结构刚度和接触刚度低时,因易产生振动,定位精度一般较低。运动件的重量,运动件的重量包括机械手本身的重量和被抓物的重量。运动件重量的变化对定位精度影响较大。通常,运动件重量增加时,定位精度降低。因此,设计时不仅要减小运动部件本身的重量,而且要考虑工作时抓重变化的影响。
Precision, the manufacturing accuracy of the robot and the precision of installation speed control have a direct impact on the positioning accuracy. Stiffness, the robot's own structural stiffness and contact stiffness are low, because of the easy vibration, positioning accuracy is generally low. The weight of the moving piece, the weight of the moving piece includes the weight of the robot itself and the weight of the catch. The change of the weight of the moving parts has a great influence on the positioning accuracy. Typically, positioning accuracy decreases as the weight of the moving parts increases. Therefore, the design should not only reduce the weight of the moving parts themselves, but also consider the impact of the changes in the work.

驱动源,液压、气压的压力波动及电压、油温、气温的波动都会影响机械手的重复定位精度。因此,采用必要的稳压及调节油温措施。如用蓄能器稳定油压,用加热器或冷却器控制油温,低速时,用温度、压力补偿流量控制阀控制。控制系统,开关控制、电液比例控制和伺服控制的位置控制精度是个不相同的。这不仅是因为各种控制元件的精度和灵敏度不同,而且也与位置反馈装置的有无有关。
Drive source, hydraulic, air pressure fluctuations and voltage, oil temperature, temperature fluctuations will affect the robot's repeated positioning accuracy. Therefore, the necessary measures for regulating and regulating the oil temperature are adopted. If the accumulator is used to stabilize the oil pressure, the temperature of the oil is controlled with a heater or cooler, and at low speed, the temperature and pressure compensate the flow control valve. The control system, switch control, electro-hydraulic proportional control and servo control position control accuracy is not the same. This is not only because the accuracy and sensitivity of the various control elements are different, but also because of the location feedback device.

深圳市创盈时代科技有限公司是一家专注于冲床机械手,上下料机械手,五金冲压机械手,工业机器人,非标自动化设备的研发生产和销售于一体的国家高新技术厂家。

原文地址:http://www.chytime-robot.com/jszc/529.html

本文关键词:注塑机械手

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