QKM robot

What is SCARA robot

       scara robot is also called horizontal multi-joint robot. This is a special type of industrial robot in a cylindrical coordinate system. There are usually 4 degrees of freedom, including translation in the X, y, and z directions and rotation around the Z axis.

Second, what is the mechanical structure of SCARA robot

       The inner details of robot design are the inner secrets of every robot manufacturer, and I can't get them, even if they don't dare reveal them. However, from the limited information, we can still summarize the overall structural design of some Scala robots.

       The appearance of SCARA robot is roughly shown in the figure below. The first and second axes have the same structure and are driven by servo motors and harmonic retarders. When due to cost considerations, there are also servo motors replaced by stepper motors, or harmonic retarders replaced by planetary retarders or RV retarders. However, at present, the one and two axes of SCARA robot are mainly servo motors and harmonic reducers.

QKM robot 3, 4 axis design more diverse. From the category can be divided into two categories: the first category is decouple, that is, 3-axis and 4-axis drive is separated, divided into spline shaft, ball screw each one, driven by two motors lift and rotate two degrees of freedom, the typical design for Yamaha Scara design, as shown in the following Yamaha company product manual picture.

       The second type is coupled, that is, the 3-axis and 4-axis drives are coupled and interact with each other, which is achieved by the ball screw spline shaft. A single motor cannot rotate or lift independently, and two motors must be driven simultaneously.

       The main advantage of the decoupled structure is that the design is relatively simple and the price is cheap. The disadvantage is that the parallelism between the spline shaft and the ball screw is required to be very high, and the assembly technology is more economical. The coupled structural model has the advantages of compact design and light weight, and the disadvantage is that the spline shaft of the ball screw is expensive, and the manufacturers are very few, basically belonging to the national monopoly.

       In addition to understanding the different types of coupling and coupling, different manufacturers of Scala for 3, 4-axis motor distribution, deceleration device design has a variety of forms, each has its advantages and disadvantages, not explained here.

       In addition, we will briefly introduce a relatively special SCARA robot, the TP 80 from Staubli. The SCARA robot is sophisticated and clever in design, and is currently the fastest SCARA robot in the world. Below is a * diagram of the company's disclosure.

QKM robot capabilities

       After saying the structure of SCARA robot, it is natural to talk about the application of SCARA robot. SCARA robots are characterized by small load and fast speed, so they are mainly used in 3C industries such as fast sorting and precision assembly, as well as in the food industry. Several typical applications of SCARA robots are described below.

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QKM robot |SCARA robot |ABB robot | Kuka robot | Yaskawa robot |6 axis industrial robot

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