When Should a Robot be used for Machining

Robotic machining can offer manufacturers an alternative to traditional CNC machining, but choosing the right solution depends on the application. Factors such as part tolerance, geometry, size, equipment cost, and the need for flexibility can all influence whether an industrial robot is a good fit for a machining process.

In this Tech Transfer, we will go over the key factors to consider when evaluating a robot for machining applications. We will start with part tolerance and discuss why rough machining and applications with wider tolerances may be well suited for robotic machining. Because robot models can have different performance characteristics, we will also look at why the requirements of the finished part need to be considered when selecting a robot.

Part geometry and size are also important considerations. Complex parts can require movement beyond three axes, while larger components may require CNC machines with significantly larger work envelopes. We will explore how the six axes and large work envelope of an industrial robot can provide additional freedom for accessing different areas of a part.

Finally, we will discuss cost and flexibility. Depending on the application, combining a robot and spindle can provide a cost effective alternative to a large CNC machine. Robots can also provide manufacturers with flexibility beyond machining because they can potentially be repurposed for applications such as machine tending or material handling as production requirements change.

Requirements

Before evaluating a robotic machining application, you should have:

• A basic understanding of the part and machining operation
• Defined tolerance requirements for the finished part
• An understanding of the part's size and geometry
• General knowledge of the application's production requirements

What We Will Learn

In this video, we will cover:

• When part tolerances may make robotic machining a good option
• How part size and geometry affect the decision
• Why a robot's work envelope and six axes can benefit complex machining applications
• How cost compares with some traditional CNC machining solutions
• How robot flexibility can provide value beyond the original machining application

If you are considering robotic machining or looking for new ways to automate manufacturing processes, this Tech Transfer will help you identify some of the most important factors to evaluate