Automatic measuring device for wall thickness of coated tube

Automatic measuring device for wall thickness of coated tube - Technical scheme

First, technical requirements:

1) Rapid wall thickness detection (wall thickness is about 2.2mm), outer diameter is about 80mm, length is about 1m, wall thickness accuracy is ±0.01mm

2) It can realize the detection of multiple indexing points in axial length and radial direction, such as feeding 100mm, the material to be tested starts to rotate at a certain Angle, detects the thickness value and records it, and then rotates again

3) Automatic detection can be realized, and the operator can load and unload the parts

2. Overall appearance (subject to actual equipment) :

Third, the principle of detection function: (as shown on the right)

The distance between the laser emitting point A and the inner wall is L1

The distance between the laser emitting point B and the outer wall is L2

Laser emission A, B distance is: L

The thickness T=L-(L1+L2)

Four, rotation and feed function principle:

1. Rotate the grinding mandrel to rotate the workpiece

2. Servo push rod drives the time to move left and right

5. Precision control:

1) The frame is packaged with industrial aluminum profiles, and the working surface is cast iron platform with first-level accuracy

2) Rotating drum for cylinder mandrel

3) The roller mounting seat uses SKF bearing seat to ensure consistent height

4) Lens frame molding, the process is: laser cutting -CNC milling - precision grinding - electroplating - polishing

5) The detection head is divided into two types, selected according to customer accuracy requirements, as follows:

a) Panasonic laser displacement sensor: repetition accuracy: 0.01mm, beam diameter: 50μm

b) Keynes laser displacement sensor: repetition accuracy: 0.001mm, bright spot range: about 200*750μm

6) Use environment requirements:

a) Ambient temperature: 20℃-45℃

b) Ambient humidity: 35-85%RH (non-condensing)

c) Ambient illumination: Incandescent lamp, 5000 lux (Keyens), incandescent lamp, 3000 lux (Panasonic)

Six, technical parameters:

1) Number of stations: 1 station, 2 station, 3 station, independent of each other without interference

2) Rotating power source: Japan Panasonic servo motor

3) Feed power source: Japanese servo motor + ball screw + linear slide rail

4) Detection head: high precision laser displacement sensor 2 / station

5) Control system: Taiwan Delta Programmable controller PLC

6) Display system: 15-inch full-color LCD touch screen (with USB output)

7) Frame: cast iron platform + industrial aluminum profile production, equipped with special footing, beautiful and generous