Pick-up Tool Slit and Groove for Backup Pin Reliability
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Solution Overview
Problem
Existing mounting devices face reliability issues in moving backup pins due to unsatisfactory picking mechanisms, leading to inconsistent and unreliable movement of backup pins.
Innovation Solution
A pick-up tool with an attaching portion and a slit for the engaging portion of the backup pin, combined with a groove orthogonal to the slit, ensures secure engagement and reduced slipping or falling, allowing for reliable movement of backup pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional pick-up mechanism is used to pick up backup pins, then the device complexity is reduced, but the reliability of moving backup pins deteriorates due to unsatisfactory gripping and slippage
Solution Approach 1:
The invention introduces a groove extending in the axial direction of the backup pin, adding a dimensional constraint that prevents axial movement. This transforms the engagement from a simple radial insertion into a multi-dimensional constraint system that reliably secures the backup pin without requiring complex gripping mechanisms
2Ease of manufacture
If a simple slit structure is used for inserting the engaging portion, then the ease of manufacture is improved, but the stability of backup pin engagement deteriorates due to slipping and falling
Solution Approach 1:
By adding the axial groove to the radial slit structure, the invention creates a two-dimensional constraint system that prevents both radial slippage and axial movement. This maintains the simplicity of the slit structure while dramatically improving engagement stability through the added dimensional constraint
3Reliability
If the engaging portion is only inserted radially into a slit, then the device complexity is minimized, but the reliability deteriorates because the backup pin can slip or fall during movement
Solution Approach 1:
The axial groove adds a third dimension of constraint to the radial slit, creating a cross-shaped engagement structure that prevents slippage and falling. This simple geometric addition provides reliable backup pin securing without requiring complex mechanical systems
Data Source
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AI summary
The pick-up tool is a tool used in a mounting device configured to mount a component on a board supported by backup pins disposed on a backup plate. The pick-up tool includes an attaching portion configured to be attached to a moving head moving the backup pin; a slit formed in an insertion direction in which an engaging portion formed on the distal end of the backup pin is inserted; and a groove, being formed orthogonally to the slit, into which the engaging portion enters.