Don’t know how to choose industrial robots? Focus on following notices when you purchase industrial robot
1. Number of robot axes.
The number of axes of the robot affects the degree of freedom. If it is for a simple straight situation, such as a belt line going from one side to the other, simply choose a four axis robot; If the mobile space of the robot is not large, but it requires a lot of twisting and rotation of the robot arm, it is better to choose six or seven axes; At present, SCARA four axis industrial robots and six axis industrial robots are common. The number of axes corresponds to the number of reducers. Of course, the number of axes of industrial robots can also be selected according to the use of enterprises. If the cost allows, the more selected axes will be better in flexibility, and the robots can be transformed to reuse in the future.
2. Arm length of the robot.
The arm length of the industrial robot affects the maximum range of motion of the robot. This should be judged according to the production environment. A general arrangement should be made for the production space. With the robot as the center, the motion range of the vertical and horizontal space should be calculated. Attention should also be paid to the non working area of the robot. It would be better if the manufacturer could be given an estimated drawing.
3. The weight of the robot.
This is easy to understand. For example, the robot you use for dispensing glue must have different load capacity than the robot you use for carrying. You must know the weight of the products you produce. Based on this, you can get a general range. If the robot needs to move objects from one station to another, In this case, the weight of the workpiece and the weight of the robot's paw need to be added to the total workload capacity, and the parameter of the robot's load curve will affect the actual load capacity of the robot.
4. Repeated positioning accuracy of robot.
Repeated positioning accuracy means the ability of robots to complete routine tasks and reach the same position. Robots for different purposes have different requirements for precision. For example, for palletizing and packaging with rough processes, very precise industrial robots are not required. For assembling PCB, a more precise process requires robots with higher precision.
5. Speed.
This parameter directly affects the production efficiency. Some robot manufacturers will mark the maximum acceleration of the robot. The actual working speed of the industrial robot is between 0 and the maximum acceleration.
6. Weight of robot body.
This is mainly to calculate the installation data. For example, the robot body needs to be installed on a customized machine or sliding guide rail, and the corresponding support should be designed according to the weight of the robot body.
7. Braking device and brake.
Basically, each robot contains a braking system, which can ensure the repeated accuracy in the working area. If there is an unexpected power failure, the robot without a braking device is likely to be locked, which may cause unexpected risks. Therefore, this is a safety guarantee in the design of industrial robots, and special attention should be paid to the selection.
8. Protection grade.
This is also closely related to the use environment. The requirements for protection grade (IP code) in food, medicine, flammable and explosive dangerous goods and other environments are different. The corresponding protection grade can be selected according to the production products.