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NON-SERVO ROBOT TECH INFO.: Structuring a Non-Servo, Pneumatic Robot
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| Structuring a non-servo, pneumatic robot is relatively simple and leads to a clean design when using integrated components. Limiting components to only those motions required for an application reduces initial costs and simplifies the entire project including programming. Structural characteristics of this class of automation depends primarily on motion patterns. If the motion is very simple, a gripper mounted to a cylinder might do. A cylinder keyed against rotation would maintain gripper alignment. If the motion is simply to transfer something in a plane, a gripper and two slide mechanisms might do. If the motion requires transferring something within a coordinate system, a gripper and three linear motions might do. Adding rotation would allow angular orientation of the work piece. Adding re-programmable features turns any of these units into a robot. A variety of robot structures can be put together in an integrated format using standard components. | |||||
| EXAMPLES OF STRUCTURING Assume a simple automation plan is to pick up something at a feeder station, process it at a work station and drop it at a conveyer station per motion pattern "A" in Figure 5. Also assume that changes in the product or processing might require reprogramming to one or any combination of motion patterns shown. An elementary, non-servo pneumatic robot may be assembled with five B•A•S•E® ROBOTIC COMPONENTS consisting of a gripper, a single ended cylinder (keyed against rotation), two linear slides and one intermediate stop cylinder as shown. A programmable controller or equivalent is required to initiate and control the duration of each step in sequence. An example of further flexibility in structuring a robot is shown as an inset where a B•A•S•E® WRIST ROTATOR is added for angular orientation about the vertical axis. |
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