Component Mounting Machine Thermal Correction Timing
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Solution Overview
Problem
Existing component mounting machines face challenges in achieving sufficient mounting accuracy and high production efficiency due to thermal deformation caused by temperature rises in constituting members, and changes in the mounting work implementation state, which are not adequately addressed by current thermal correction processes.
Innovation Solution
A component mounting machine with a control device that determines the implementation timing of the thermal correction process based on the required mounting accuracy and thermal influence level, optimizing the thermal correction process to minimize its impact on mounting accuracy and production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the thermal correction process is performed frequently to maintain mounting accuracy, then mounting accuracy is improved, but production efficiency deteriorates due to increased temporal loss
Solution Approach 1:
The system dynamically changes the thermal correction implementation timing based on the accuracy requirement level of components. For high accuracy requirements, thermal correction is performed more frequently (e.g., every 1000 shots), while for lower accuracy requirements, it is performed less frequently (e.g., every 5000 shots). This parameter-based adaptation resolves the contradiction by optimizing the balance between mounting accuracy and production efficiency according to actual needs.
2Productivity
If the thermal correction process is delayed to maintain high production efficiency, then production efficiency is improved, but mounting accuracy deteriorates due to thermal deformation
Solution Approach 1:
The system implements dynamic thermal correction timing that adapts to changing accuracy requirements. Instead of using a fixed thermal correction interval, the system adjusts the correction frequency based on the component type and required accuracy level. This dynamic approach allows the system to maintain high production efficiency while ensuring mounting accuracy is sufficient for each specific component.
3Ease of operation
If the thermal correction process is performed uniformly for all component types, then implementation is simplified, but resource waste occurs when mounting large components with moderate accuracy requirements
Solution Approach 1:
The system applies different thermal correction strategies to different component types based on their specific accuracy requirements. Small components with strict accuracy requirements receive more frequent thermal correction, while large components with moderate accuracy requirements receive less frequent correction. This localized quality approach optimizes resource allocation and reduces unnecessary temporal loss while maintaining adequate mounting accuracy for each component type.
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
The machine achieves sufficient mounting accuracy by optimizing the thermal correction process timing according to the required accuracy level and reduces the number of thermal correction implementations, thereby enhancing production efficiency.
Implementation Method 1
temperature of constituting members may rise, and such a constituting member is thermally deformed, thereby affecting mounting accuracy of the component
Data Source
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AI summary
A component mounting machine, including a component transfer device, having a component mounting tool configured to collect and mount a component, a mounting head configured to hold the component mounting tool, and a head driving mechanism configured to horizontally drive the mounting head, which performs a mounting work of mounting the component collected from a component supply device on a predetermined coordinate position of a board carried in and positioned by a board conveyance device, and a control device configured to control the mounting work, and configured to implement a thermal correction process for reducing an influence on mounting accuracy of the component, of which influence being caused by thermal deformation due to a temperature change in at least one of the head driving mechanism and the mounting head, wherein the control device further comprises: an implementation timing determination section configured to determine an implementation timing of the thermal correction process, based on a required level of the mounting accuracy or in consideration of a change timing in which an implementation state of the mounting work changes with the mounting accuracy, and a thermal correction implementation section configured to implement the thermal correction process according to a determination result of the implementation timing determination section.