Japan's Yaskawa Electric Company has recently successfully developed the industrial robots "motoman-da20" and "motoman-ia20" that can perform tasks previously performed by humans. Both robots will be available on December 1, 2005. According to reports, da20 is a "dual-arm" robot equipped with two 6-axis drive arm robots. ia20 is an arm-type robot that reproduces human elbow movements through 7-axis drive. Two robots will be used to replace humans in completing assembly and handling operations. In terms of price, the da20 is 9.8 million yen and the ia20 is 5.8 million yen (both prices include tax and come with a controller and programming console).
da20 is equipped with two 6-axis drive arm robots on a structure that simulates the human upper body. The upper body structure itself also has joints that rotate about a vertical axis. Dimensions are "roughly the same as those of an adult male." Therefore, it can be installed directly in places where humans have previously done work. Since the movement and structure of human arms are close to those of humans, this robot can carry workpieces stably. It can also be used to assemble and insert fastening nuts and components. In addition, compared with the coordinated control of two arm-type robots, the installation area of ??this robot is smaller. The load-bearing capacity of one arm is 20 kg, and the two arms can carry a maximum workpiece of 40 kg.
The ia20 is an arm-type robot that implements 7-axis drive, so it is closer to human movements. Generally speaking, it is generally believed that the human arm has 7 to 8 axes of joints. The previous 6-axis robot reproduced the three joints of the arm and the three joints of the wrist in terms of human beings. The ia20 further adds one joint to the elbow. This allows the movement of folding or extending the arm through the elbow. Due to movement constraints, the chest of a 6-axis robot becomes a "dead zone", while a 7-axis robot can also use the chest as an action area. In addition, you can also perform actions to avoid obstacles close to the fuselage.
Both da20 and ia20 are equipped with newly developed servo motors in the joints. The motor adopts the design of reducer and brake. (Source: China Industrial Equipment Network)