Machining centers and robots are programmable basic equipment commonly used in the manufacturing industry, but the functions required to complete the job are different:

(1) The machining center is mainly used to complete the cutting operation. For this reason, it must have high positioning accuracy, high machining accuracy (micron level); high output (several thousand to tens of thousands of cattle); high structural rigidity; high vibration resistance and high production. effectiveness. In order to improve production efficiency, the spindle speed must be high-speed servo, the idle feed rate should be high enough, the tool change time is short enough, and the workpiece is up and down quickly.

(2) Robots are mainly used in the manufacturing industry for arc welding, spot welding, painting, handling, assembly, placement, palletizing, burring, etc., which requires dexterity and fast speed. However, except for special cases, most industrial robots have positioning accuracy and motion accuracy (sub-millimeter), output (tens of cattle to hundreds of cattle) and structural rigidity are much lower than the machining center.

From the structural aspect, the machining center and the robot can be seen:

(1) The coordinate transformation system of the machining center and the computer numerical control system of the robot is different, but the functions are similar, and the two can be realized on the same platform.

(2) The machining center and the main body of the robot are all C-shaped. When the work is completed, the whole equipment is not closed. There is room for improvement from the perspective of structural rigidity and vibration resistance (for example, parallel rod structure can be adopted) The advantage is that the accessibility of the upper and lower manufacturing equipment of the working object is better. However, most of the main components of the machining center are connected through the J1 type interface, or through the J2 type sliding or rolling guide motion sub-interface, so the structural rigidity is very high. In order to ensure the dexterity of the working movement, the various connecting rod members are generally connected in series through the J2 type rolling bearing motion auxiliary interface, which is similar to the cantilever beam when working, and the rigidity of the terminal is low.

(3) The spindle of the machining center corresponds to the terminal of the robot, and both can be configured with different terminal effectors. The robot's end effector configuration on the machining center makes it possible to get a robotic machining center. By configuring the end effector of the machining center on the robot, it is possible to obtain a machine toolized robot.

(4) The tool magazine of the machining center is used to store tools and gauges, and can also be used to store the terminal effector of the robot. Machining centers and robots require different functions, different structures, and different technical characteristics. The technical advantages of the two are combined according to the target requirements. The mechanically separable fixed interface and the mechanical re-distributable interface can be used to realize the reconfigurable design of the manufacturing equipment. .

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