Rectangular coordinate robots are programmed based on the spatial XYZ rectangular coordinate system and have three or more degrees of freedom. They can achieve automatic control and can be programmed and applied repeatedly, and are suitable for automation equipment for different tasks. Cartesian coordinate robots can be divided into three categories: 2-axis combination, 3-axis combination, and 6-axis combination. The basic unit of the right-angle robot is the linear module.
1. Basic unit of right-angle industrial robot: linear module
1. Ball screw type
Mainly composed of: ball screw, linear guide rail, aluminum Alloy profiles, ball screw supports, couplings, motors, photoelectric switches, etc.
1) Aluminum alloy profiles. The aluminum alloy profile slide table has beautiful appearance, reasonable design, good rigidity and reliable performance. It is an ideal basic power component for combined machine tools and automatic lines and has good dynamic performance. High stiffness, small thermal deformation, and high feed stability ensure the actual accuracy under processing conditions (under load).
2) Ball screw is an ideal product for converting rotary motion into linear motion, or converting linear motion into rotary motion. Ball screw consists of screw, nut and balls. Its function is to convert rotational motion into linear motion, which is a further extension and development of ball screws. The important significance of this development is to change the bearing from rolling action to sliding action. Due to its small frictional resistance, ball screws are widely used in various industrial equipment and precision instruments. High-precision linear motion can be achieved under high loads.
3) Linear guide rail. Also known as slide rails, linear guide rails, and linear slide rails, they are used in linear reciprocating motion situations. They have a higher rated load than linear bearings. They can also bear a certain torque and can achieve high-precision linear motion under high loads. Structure, high precision; precision grade guide rail plate.
2. Synchronous belt type
It mainly consists of: belt, linear guide rail, aluminum alloy profile, coupling, motor, photoelectric switch, etc. The belt is installed on the drive shaft on both sides, which serves as the power input shaft. A slide block for adding equipment workpieces is fixed on the belt. When there is input, the slider moves by driving the belt.
The accuracy depends on the quality of the belt and the processing process in the combination. The control of the power input will also have an impact on the accuracy. The accuracy is generally higher than 0.1mm. Therefore, for different production process requirements, adopt respective needs. The timing belt type can control production costs. You can choose to add rigid guide rails to improve rigidity according to different load requirements. Different specifications have different load limits.
Usually through a specific design, the tightness of the belt movement can be controlled on one side, which facilitates the debugging of the equipment during the production process. The tightness control of the synchronous belt type is on the left and right sides, and is generally controlled by screws.
2. Cartesian coordinate manipulator classification:
(1) 2-axis combination
Arm type: The Y-axis base is fixed, and the Y-axis slider can be horizontal Movement, transportation, transfer in the XY plane, etc.
Support gantry type: The front end of the arm-type Y-axis has a support rail, and the Y-axis slider moves horizontally, transportation, transfer, etc. in the XY plane, with a large working range
YZ type: The Z-axis base is fixed on the side-standing Y-axis, and the Z-axis slider can move vertically for transportation and transfer in the XZ plane
(2) 3-axis combination
Arm type + Z axis: ? Transportation, transfer, etc. in XYZ three-dimensional space
Support gantry type + Z axis:? Transportation, transfer, etc. in XYZ three-dimensional space
(3) 6-axis combination
(X-Y base fixed + Z axis) x2:? Transportation, transfer, etc. in XYZ three-dimensional space
3. Characteristics of Cartesian coordinate robot
Movement with degrees of freedom, the space angle between each degree of freedom of movement is a right angle, high reliability, high speed, high precision automatic control, repeatable programming, all movements are according to Program operation is generally composed of a control system, a drive system, a mechanical system, operating tools, etc. It is flexible and multi-functional. Due to the different functions of the operating tools, it is easy to install, operate and maintain. It has a compact structure, beautiful appearance and durability, and can be diversified according to user needs. Customized design
4. Cartesian coordinate machine application
Classification by industry:
Classification by application: