Workpiece Switching Jig With Cut-Off Basket for Accurate EDM Collection
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Solution Overview
Problem
Existing wire electric discharge machines face challenges in efficiently collecting cut-off portions without damaging the machine's mechanisms, as previous solutions complicate control and reduce processing accuracy or limit the operating range.
Innovation Solution
A workpiece switching jig that is attachable to and detachable from the cutting machine, featuring a jig main body, a cut-off portion basket, and an arm to support the basket, allowing for easy collection and disposal of cut-off portions without interfering with the machine's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a robot is used to hold the workpiece and the cut-off portion, then the cut-off portion can be collected, but the control becomes complicated and processing accuracy decreases
Solution Approach 1:
The patent introduces a dedicated cut-off portion collection mechanism as an intermediary device between the cutting wire and the robot. This mechanism includes a collection basket positioned to receive cut-off portions directly from the cutting zone, eliminating the need for the robot to directly handle and track the cut-off portions, thus simplifying robot control while maintaining collection efficiency
Solution Approach 2:
The system is divided into separate functional components: the workpiece holding mechanism, the cutting wire mechanism, and the cut-off portion collection mechanism. The collection mechanism is further segmented into a basket structure that can independently receive and hold cut-off portions without interfering with the cutting process or requiring complex robot coordination
2Ease of operation
If a robot is used to hold the cut-off portion, then the cut-off portion can be collected, but the robot may come into contact with the wire electric discharge machine structure and cause damage
Solution Approach 1:
A dedicated collection basket serves as an intermediary that intercepts cut-off portions before they can fall into the work tank or come into contact with the wire electric discharge machine structure. The basket is positioned and oriented to receive cut-off portions along their natural trajectory, preventing them from contacting sensitive machine components
Solution Approach 2:
The collection basket is pre-positioned to intercept cut-off portions before they can potentially damage the machine structure. The basket's placement and orientation are designed to deflect or contain cut-off portions away from the wire electric discharge machine's structural components, preventing potential damage before it can occur
3Reliability
If the robot's operating range is limited to avoid contact with the machine, then the possibility of contact damage is reduced, but the operating range of the wire is also limited
Solution Approach 1:
The collection basket acts as a stationary intermediary device that handles cut-off portion collection within the existing wire operating range. Since the basket is fixed in position and does not require robot movement into restricted zones, the wire can maintain its full operating range while the basket independently performs the collection function without interfering with wire movement or positioning
Data Source
AI summary
An object is to collect a cut-off portion cut off from a workpiece with a simple structure. A workpiece switching jig 20 according to one aspect of the present disclosure is attachable to and detachable from a cutting machine 30 and holds a workpiece W to be cut by the cutting machine 30. The workpiece switching jig 20 includes a jig main body 21 configured to hold the workpiece W, a cut-off portion basket 25 configured to receive a cut-off portion W2 cut off from the workpiece W by the cutting machine 30, and an arm 23 configured to support the cut-off portion basket 25 with respect to the jig main body 21.