Electric Gripper Driver Eliminates Trigger Signal Circuit

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Solution Overview

Problem

Conventional electric gripper driving methods require a trigger signal, complicating circuit traces and leading to malfunctions, especially when new action instructions are given during ongoing operations.

Innovation Solution

A driver device with an integrated logic decision unit that generates a state signal and feedback signal to execute action instructions without a trigger signal, ensuring the electric gripper is idle and the new instruction is different from its current state, eliminating the need for a trigger circuit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a trigger signal circuit is used to control the electric gripper, then the electric gripper can execute actions, but the circuit traces become complicated and malfunctions occur easily

Engineering Contradiction:
Improveelectric gripper operation reliabilityVSAvoiddriver device circuit complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the trigger signal circuit from the driver device. By using a state machine that directly processes action instructions and compares feedback signals, the design removes the unnecessary trigger circuit component, thereby simplifying the overall circuit structure while maintaining reliable operation control

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The driver device uses its own feedback signal to automatically determine whether to execute new action instructions. The state machine compares incoming action instructions with feedback signals from the electric gripper's current state, enabling the system to self-regulate without external trigger signals, thus reducing circuit complexity while ensuring reliable operation

Inventive Principle:
Principle #25Self-service

2Reliability

If a trigger signal is required before executing action instructions, then the electric gripper can change action direction, but new action instructions may be received during ongoing operations causing malfunctions

Engineering Contradiction:
Improveelectric gripper operation reliabilityVSAvoidaction instruction execution smoothness
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent implements a feedback mechanism where the driver device continuously monitors the electric gripper's current state through feedback signals. The state machine compares incoming action instructions with the current feedback state, only executing new instructions when the gripper is in an idle state. This feedback-based control prevents malfunctions during ongoing operations while ensuring smooth action transitions

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The state machine performs preliminary checking of the gripper's current state before executing new action instructions. By evaluating the feedback signal in advance and confirming the idle state condition, the system prepares for safe instruction execution, preventing conflicts during ongoing operations and ensuring smooth transitions

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10099370B2Driver device for electric gripper and driving method thereof
Publication Date: 2018.10.16 HIWIN TECH CORP
  • US10099370B2 patent drawing
  • US10099370B2 patent drawing
  • US10099370B2 patent drawing

AI summary

A driving method used in a driver device for driving an electric gripper is disclosed to include the step of providing a state signal that is generated according to the operation state of the electric gripper, the step of receiving an action instruction and detecting a feedback signal indicative of the action of the electric gripper when the state signal is an idle state, and the step of outputting the action instruction if the action of the electric gripper indicative of the action instruction is not in consistency with the action of the electric gripper indicative of the feedback signal. Thus, the driving method of the present invention needs not to provide a trigger signal for commanding the electric gripper to execute the action instruction.