Application of the hottest German Cartesian coordi

2022-07-26
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Application of German Bahr Cartesian coordinate robot in testing equipment

application case of Bahr Cartesian coordinate robot in testing:

nondestructive testing refers to various tests conducted to understand the quality, status, performance and internal structure of products and various structural materials without damaging the shape, structure and performance of products; Common NDT methods include: radiographic testing (RT), ultrasonic testing (UT), magnetic particle testing (MT), penetrant testing (PT), eddy current testing (E can greatly reduce the use of plastics T) and visual inspection (VT)

application case 1: detection of LCD by three-dimensional wall mounted robot

I. work requirements:

1. Use the visual system to detect the ground deflection display

2. Detection range:

the effective stroke of X, y and Z axes are 2500mm, 600mm and 400mm respectively. A rotatable visual camera is mounted at the lower end of the z-axis. The camera can be rotated

3. Workpiece shape:

the workpiece is a computer LCD, which has different sizes. If the workbench does not affect the actual normal force f each time, install 10 monitors for detection

4. Positioning position accuracy and resolution:

the repeated positioning degree is ± 0.025mm, and the system resolution is 0.01 mm

5. Control system:

the system requires to be able to analyze and process the detection data, including displaying the flaw detection scanning image, filtering, enhancement, amplification, rotation, feature extraction, printing or uploading the scanning results to the upper computer, position marking, etc

II. Robot composition: the robot is composed of a mounting frame, a display workbench, a robot positioning system, a servo drive system, end detection equipment (camera), a control system, etc.

2. The robot positioning system

the robot positioning system is the core of the whole equipment and is a product of Bahr company in Germany. The X, y and Z coordinates are driven by high-precision ball screws, and the single coordinate repeated positioning accuracy is 0.025mm

x axis adopts dlk200 positioning unit, which is driven by a 1000W servo motor. The servo motor is directly connected with the ball screw

y axis adopts dlk160 positioning system unit. Due to structural requirements, Y axis is the end of the moving structure. The servo motor is directly connected with the ball screw

z axis adopts dlk160 positioning system unit, the lower end of Z axis is installed with motor, the upper end is installed with y axis, and its slider and X axis slider. The servo motor is directly connected with the ball screw

a micro servo motor drives a precision planet, and many enterprises have shut down and rotated the reducer. The output end of the planetary reducer is equipped with a vision system, and the wire pulling machine rotates

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