1336F-B030-AN-EN自动化工控模块AB
来源：厦门雄霸电子商务有限公司
发布时间：2022-10-11 16:41:34
1336F-B030-AN-EN
1336F-B030-AN-EN生产线的稳定、可靠、高效，是直接影响企业效益的，*近宁德时代董事长曾毓群在世界动力电池大会上也提到3点要求：“*是对研发能力提出更高的要求;第二是大规模交付对制造能力提出更高的要求;第三是产业纵深发展对服务能力提出更高要求。”这其中第二点就是针对制造能力的，现代的工业生产已经不再是单机设备加工了，是需要整个生产过程实现完全的自动化，任何的自动化生产线无论技术*与否，都要围绕着稳定、可靠、高效的目标去实行。
那么我们认为，生产线上的应该是如下的理解 接下来以锂电生产线为例，在各类车用锂电池制造设备中，一提到制造能力的*高效，往往会想到各种伺服电机作为执行元器件的控制系统，但是由于电池的制造工艺，在各种生产工序中并非都是由伺服电机来完成，也有部分是步进电机甚至是气缸，比如辊压就是有气缸定位的。
在传统的伺服中，编码器是作为电机末端的传感，各个机位同步就需要接收来自编码器实时位置反馈，控制器通过工业总线或者工业以太网串联，逐个扫描位置数据，即使再快的总线和再快的PLC也会存在些许延时，这就需要*的伺服技术人员现场调试，有时候设备使用时间久了，机械磨损损耗较大，机械磨损后定位位置发生改变，还需要*技术人员现场调整和维护，在电池生产线大批量产能需求下，使用成本和维护成本就增加了。 在机械终端加*值编码器，作为前端传感，位置数据直接并联输出到控制器，同步采集，无论有个点同时工作，也无论是采用气缸或者步进电机驱动，都可以实现不同执行器间协同工作，而且不需要繁琐的调试，只需要手动校准，把位置值写入控制器，控制器运行时读到数值输出开关点，控制机器，工作效率显著提高，更加稳定可靠，现场调试简单，且后期维护也方便这里提到开关点，有懂技术的会说用光电开关定位，但是在电池生产线上比如焊头、比如压辊是柔性的，只靠一两个开关点显然不能满足定位的要求，而且一旦过冲还会损坏设备，所以需要柔性的传感器方案，单圈*值编码器就被当作“柔性电子凸轮开关”使用。 我们把单圈*值编码器简单理解为360度里面有很多个位置开关组合，假设把360度分成360个开关点编码，控制设备(比如PLC或单片机)接收到编码，可以根据需要选择这360个位置中任意位置作为电子凸轮的输出开关点，作为“凸轮进-减速”输出和“凸轮出-复归位”输出，来控制机械装置周而复始的往复工作。 这种柔性的电子式凸轮开关精度高、重复性高、可靠性高，在多个位置上可以有多个凸轮开关点，根据需要任意位置编程输出，非常适合只需简单重复而又要求可靠的应用，就如在锂电的焊接和封装生产线上那简单重复的工序要求。
有了*值编码器，调试的时候只需要手动锁定几个点的位置，然后在PLC程序里面记入位置值，以后就不会再改变，编程与调试非常简单，后期使用也能保证长期可靠。 关于*值编码器输出信号，因为大多数工控设备都会用到模拟量接口，模拟量采集模块是同时采集所有输入信号，同步性高、兼容性好，而且现场检查故障只需要一只万用表非常方便，所以4-20mA信号的模拟量信号的单圈*值编码器具有接线简单、读数简单、调试简单、检修简单诸多优点，在精度要求不高可靠性要求极高的场合下，反而受到现场工程师们的偏好。
由于锂电生产线空间有限，需要传感器体积小，又是连续高速焊接，一方面周边会产生较高环境温度，另一方面焊机位置靠得近，相互之间会产生较高的电磁干扰，所以对传感器提出以下更高的要求：
In the traditional servo, the encoder is used as the sensor at the end of the motor. When each machine position is synchronized, it needs to receive real-time position feedback from the encoder. The controller is connected in series through the industrial bus or industrial Ethernet and scans the position data one by one. Even if the bus is fast and the PLC is fast, there will be a little delay. This requires professional servo technicians to debug on site. Sometimes, the equipment has been used for a long time, and the mechanical wear loss is large, After the mechanical wear, the positioning position changes, which requires professional technicians to adjust and maintain on site. Under the demand of mass production capacity of the battery production line, the use cost and maintenance cost increase. An absolute value encoder is added to the mechanical terminal as the front-end sensor, and the position data is directly output in parallel to the controller for synchronous collection. No matter how many points work at the same time, and no matter how many points are driven by cylinders or stepper motors, the cooperative work between different actuators can be achieved, and no tedious debugging is required. Only manual calibration is required, and the position value is written into the controller. The controller reads the numerical output switching point when it is running, Controlling the machine, the working efficiency is significantly improved, the machine is more stable and reliable, the on-site debugging is simple, and the later maintenance is also convenient. Those who know the technology will say that the photoelectric switch is used for positioning. However, in the battery production line, such as the welding head, such as the press roller, it is flexible, and it is obviously not possible to meet the requirements of accurate positioning by relying on only one or two switching points. In addition, once overshoot occurs, the equipment will be damaged, so a flexible sensor scheme is required, Single turn absolute encoder is used as "flexible electronic cam switch". We simply understand the single turn absolute value encoder as there are many position switch combinations within 360 degrees. Suppose 360 degrees are divided into 360 switch point codes, and the control equipment (such as PLC or SCM) receives the codes. Any of these 360 positions can be selected as the output switch point of the electronic cam as required, as the "cam in deceleration" output and the "cam out reset" output, To control the reciprocating work of the mechanical device. This flexible electronic cam switch has high precision, high repeatability and high reliability. It can have multiple cam switch points at multiple positions. It can be programmed and output at any position as required. It is very suitable for applications that require simple repetition but require reliability, such as the simple and repeated process requirements on the lithium battery welding and packaging production line.
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