Wire-Processing Device Pull-Out Force Measurement Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wire-processing devices are inadequate for measuring the pull-out force of medium-sized and large wires due to insufficient gripper closing force, leading to potential slippage and inaccurate force measurement.
Innovation Solution
A wire-processing device with a gripper that feeds wires to processing stations and includes a pull-out device with a holding unit and a gripping unit, allowing for the application of a sufficient pull-out force along the wire's longitudinal axis, enabling accurate measurement of medium-sized and large wires without requiring a stronger gripper or increased drive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gripper closing force is increased to hold medium-sized and large wires during pull-out force measurement, then the measurement reliability is improved, but the gripper dimensions and mass increase, requiring a larger drive
Solution Approach 1:
The device is divided into two functional parts: the original gripper for feeding wires and a separate pull-out device with holding unit and gripping unit for force measurement. This segmentation allows the gripper to remain lightweight while the pull-out device provides the necessary holding force for medium-sized and large wires during measurement.
Solution Approach 2:
The pull-out device acts as an intermediary between the gripper and the wire during measurement. The gripper feeds the wire to the pull-out device, which then takes over to apply and measure the pull-out force, eliminating the need for the gripper itself to generate high closing force.
2Force
If a substantially more strongly built gripper is used to meet the pull-out force requirements for medium-sized and large wires, then the gripping capability is improved, but the device complexity and drive requirements increase
Solution Approach 1:
The gripping function is segmented between the original gripper (for feeding) and the pull-out device with its holding and gripping units (for measurement). This allows the pull-out device to be optimized specifically for high-force measurement without complicating the overall gripper structure.
Solution Approach 2:
The pull-out device serves multiple functions: it provides the holding unit to firmly hold the wire-end connector, the gripping unit to apply pull-out force, and the measurement capability to detect the force. This multi-functionality consolidates what would otherwise require a complex, heavily-built gripper.
3Device complexity
If the gripper is used alone for both feeding and pull-out force measurement, then the device simplicity is maintained, but the measurement precision deteriorates due to insufficient gripping force on medium-sized and large wires
Solution Approach 1:
The measurement function is separated from the feeding function. The gripper handles feeding while the pull-out device with holding and gripping units handles measurement, ensuring sufficient gripping force for accurate measurement of medium-sized and large wires without significantly increasing overall device complexity.
Solution Approach 2:
The pull-out device serves as an intermediary measurement system that the gripper introduces to the wire. This intermediary provides the necessary gripping force and measurement capability that the original gripper alone cannot provide for medium-sized and large wires.
Data Source
AI summary
In a wire-processing machine, by a linear movement away from a first holding unit, a gripper applies to a gripping unit a pull-out force in the longitudinal axis of the wire. The pull-out force that is exerted on the wire is measured by, for example, a force sensor that is arranged on the holding unit or by the motor current of the motor that causes the linear movement. The gripper and the gripping unit together make measurement of the pull-out force possible also for medium-sized and large wires without the gripper needing to be constructed stronger, or its dimensions, or the gripper-arm drive, needing to be changed.