Dual-Hand Handler for Parallel Part Inspection
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Solution Overview
Problem
Existing part inspection handlers face inefficiencies in transporting multiple electronic parts due to increased size and weight of hands, leading to decreased transport speed and increased transport distance, which hampers the inspection efficiency.
Innovation Solution
A handler configuration with two transport sections and a control system that allows the hands to move from a spaced position to an adjacent position in parallel, enabling efficient transportation of multiple parts without increasing hand size, and alternating supply and recovery tray operations to minimize waiting times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of electronic parts inserted in an inspection socket in one-time inspection is increased, then the inspection efficiency is improved, but the size and weight of the hand become large and heavy, leading to decrease in transport speed and increase in transport distance
Solution Approach 1:
The patent divides the single hand into multiple hands (first hand and second hand), each capable of holding a limited number of electronic parts. Instead of one large hand holding many parts, multiple smaller hands work in coordination, thereby maintaining transport speed while increasing the total number of parts that can be inspected simultaneously.
Solution Approach 2:
The patent combines the functions of multiple hands and transport sections to achieve the effect of handling more parts. The first and second transport sections with their respective hands work together to insert multiple electronic parts into the inspection socket simultaneously, achieving increased inspection efficiency without requiring any single hand to be oversized.
2Productivity
If the number of electronic parts inserted in an inspection socket in one-time inspection is increased, then the inspection efficiency is improved, but the transport distance of the electronic part increases
Solution Approach 1:
By segmenting the transport function into multiple transport sections, each handling a subset of parts, the patent reduces the transport distance for each individual hand compared to a single hand that would need to reach all parts. Each transport section can be positioned more optimally, reducing overall transport distance while maintaining high inspection throughput.
3Quantity of substance
If the size of the hand is increased to hold more electronic parts, then the number of parts transported to the opening portion is increased, but the transport speed decreases
Solution Approach 1:
The patent segments the load-bearing function across multiple hands, each of standard size and weight. This allows each hand to maintain its transport speed while the collective system handles a larger quantity of parts. The first and second hands can move at optimal speeds independently, avoiding the speed reduction that would occur with a single oversized hand.
Solution Approach 2:
The patent introduces dynamic coordination between multiple transport sections and hands, allowing them to operate in a synchronized manner. This dynamic system optimizes the overall transport efficiency, maintaining high speed while increasing the total number of parts transported through coordinated action rather than relying on a single static, oversized hand.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for increased numbers of parts to be transported efficiently while maintaining the capacity of each hand, suppressing decreases in transport speed and distance, thus enhancing overall inspection efficiency.
Implementation Method 1
a transport section having a hand which holds a plurality of electronic parts accommodated in a supply tray by vacuum suction
Data Source
AI summary
A handler includes a base having an opening portion, a first hand which transports a transport target, a first transport section which transports the first hand to above the opening portion and moves the first hand down, a second hand which transports the transport target, a second transport section which transports the second hand to above the opening portion and moves the second hand down, and a control section which controls an operation of the first transport section and an operation of the second transport section. The handler has a state where the first hand and the second hand are disposed in parallel to the opening portion while being close to each other toward above the opening portion.