Handling Machining Assembly Organisation Pneumatics Electronics Mechanics Sensorics phần 10 docx

108 99 Examples of pneumatic applications

Functional sequence

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Flat workpieces such as food trays need to be subjected to a visual inspection

after deep-drawing or screen printing to allow defective workpieces to be

identified and removed. In the station shown above, this is carried out using

a CCD camera. Defective workpieces are allowed to pass the camera and are

eliminated downstream. Tested “good” workpieces are stacked in a magazine.

The setdown height in the stack magazine is kept constant. This is controlled

by an optical diffuse sensor. The workpieces are light in weight, allowing the use

of grippers with a large cantilever extension.

Suitable components:

Guided drive DFM..

Semi-rotary drive DSR...

Pneumatic single pilot valve...

Parallel gripper HGP...

Positioning axis DGE...SP

Single-axis positioning controller EPS...

Proximity switch SM...

Diffuse sensor SOEG...

Mounting accessories

Fittings

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Testing

Testing and sorting station

1 Vertical lifting unit

2 Clevis foot mounting

3 Rotary unit

4 Workpiece

5Conveyor belt

6 Spindle lifting unit

7 Magazine rod

8 Workpiece stack with

tested “good” workpieces

9 Level sensor

10 Lifting arm

11 CCD camera with image

processing software

12 Parallel jaw gripper

13 Outward transfer of

defective workpieces