Handling Machining Assembly Organisation Pneumatics Electronics Mechanics Sensorics phần 8 pps

84 99 Examples of pneumatic applications

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An end effector can be positioned on an X/Y plane by means of traversing drives,

as shown in the illustration above. Motion is transmitted to the end effector via

toothed belts. The graphs show which drives need to be activated to produce

an end effector motion in a given direction. If it is necessary to approach a large

number of positions, this naturally requires freely programmable positioning

axes. The size and position of the working area are governed by the dimensions

of the motion components selected. This principle can be used for both vertical

configurations (wall gantries) and horizontal configurations (cross-slide units).

The choice of linear guides will depend on the forces involved. The end effector

can be any one of various devices, such as a spray gun, power screwdriver,

power wrench, drill spindle, labeller or inspection camera. As the drives are fixed

and the toothed belts have very low mass, highly dynamic motion sequences

can be achieved. For pin-point working, it is advisable to fit additional clamps

devices to the slide or horizontal effector guide.

Suitable components:

Positioning drive DGE.. . SP or DGE.. .ZR or pneumatic servo axis DGPI...

Gripper HG...

Multi-axis positioning controller MPS...

Pneumatic single pilot valve...

Mounting accessories

Fittings

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Positioning

Handling unit with traversing

drives

1 Slide with clamp pieces

to secure toothed belt

2 Working area of end

effector

3 Linear unit as appropriate

to positioning requirements

4 Horizontal axis guided

by twin rollers

5Toothed belt with edge

guide rollers