Parts Mounting Device Control Reducing Adsorption Variation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In parts mounting devices, abnormalities such as inclined or failed part adsorption occur due to inadequate setting of nozzle position, stop time, operation velocity, and operation acceleration, leading to increased cycle time and reduced production quantity.
Innovation Solution
An arithmetic device calculates and modifies parameters like nozzle position, stop time, operation velocity, and acceleration based on detected variations, using detection devices and threshold values to optimize part holding and attachment processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the stop time of the nozzle is increased to ensure sufficient depressurization, then adsorption reliability is improved, but cycle time increases and productivity decreases
Solution Approach 1:
The patent applies dynamics by making the stop time variable rather than fixed. The control device dynamically adjusts the stop time based on real-time detection of part position and nozzle state, allowing the system to use the minimum necessary stop time for reliable adsorption, thereby preventing productivity loss while maintaining adsorption reliability.
Solution Approach 2:
The patent implements feedback by using detection devices to monitor part position and nozzle depressurization state, then feeding this information back to the control device which adjusts the stop time accordingly. This closed-loop control ensures reliable adsorption without unnecessarily extending cycle time, thus maintaining productivity.
2Manufacturing precision
If the nozzle position is adjusted to compensate for feeder deviation, then adsorption precision is improved, but device complexity increases
Solution Approach 1:
The patent uses feedback by detecting the actual part position and feeder deviation, then automatically adjusting the nozzle stop position through the control device. This automated feedback loop achieves high adsorption precision without requiring complex manual adjustment mechanisms or additional hardware.
Solution Approach 2:
The patent replaces complex mechanical adjustment mechanisms with a control system that uses detection devices and arithmetic processing to calculate and adjust nozzle position. This substitution of mechanical systems with control-based solutions reduces device complexity while maintaining or improving adsorption precision.
3Reliability
If the operation velocity is reduced to ensure proper adsorption, then adsorption reliability is improved, but production quantity decreases
Solution Approach 1:
The patent applies dynamics by making the operation velocity variable rather than constant. The control device adjusts the velocity according to the detected part characteristics and adsorption requirements, allowing high velocity for simple cases and reduced velocity only when necessary, thus maintaining both reliability and production quantity.
Solution Approach 2:
The patent changes the operation velocity parameter dynamically based on detected conditions such as part weight, shape, and position. This parameter adjustment ensures reliable adsorption for each specific case while minimizing the overall impact on production quantity by only reducing velocity when absolutely necessary.
4Manufacturing precision
If the stop position of the nozzle is moved closer to the part, then adsorption precision is improved, but the risk of collision increases
Solution Approach 1:
The patent applies preliminary action by detecting the part position and calculating the safe stop position before the nozzle actually moves to that position. The control device uses the detection device information to predetermined the optimal stop position that achieves precision while avoiding collision, then executes the movement to that pre-calculated safe position.
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 approach reduces the occurrence of adsorption abnormalities while maintaining cycle time efficiency, thereby improving production quality and quantity.
Implementation Method 1
adsorbs the part by stopping the nozzle for a predetermined time and depressurizing inside of the nozzle
Data Source
AI summary
A technology is provided to enable lowering the fault generation rate related to a parts installation device. A parts installation device (100) (calculation device (150)) fetches or calculates state parameter values that represent the relative position relationship or the distance of a part holder and a part during the operation of removing and holding, calculates the fluctuation values of the state parameters, and corrects parameters having a small increase in the cycle time and is effective in reducing fluctuations among the parameter values of the holding position of the part holder, stop time, operating speed, and operation acceleration when the value of the fluctuations exceeds a first threshold.