Component Mounter Workpiece Holding Body Posture Adjustment
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Solution Overview
Problem
Existing component mounters have low productivity due to the need for a single posture adjustment mechanism to adjust the posture of a single workpiece, limiting the ability to handle multiple workpieces simultaneously.
Innovation Solution
A component mounter design that includes a workpiece holding body, a carrier, a transport conveyor, a chuck portion, a lifting-lowering mechanism, and a rotation mechanism, allowing for the collective posture adjustment of multiple workpieces by separating the workpiece holding body from the carrier, transporting it, and rotating the chuck portion to align the workpieces for efficient component placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single posture adjustment mechanism adjusts one workpiece at a time, then the posture of each workpiece can be precisely adjusted, but the productivity is low due to sequential processing
Solution Approach 1:
The workpiece holding body is divided into multiple holding positions (first, second, third holding positions) that can be independently rotated. This segmentation allows each workpiece to be adjusted individually while maintaining the ability to handle multiple workpieces simultaneously, resolving the contradiction between productivity and device complexity
Solution Approach 2:
Multiple workpiece holding bodies are combined on a single carrier that moves together through the system. The carrier transports multiple workpieces simultaneously to the posture adjustment mechanism, enabling parallel processing and improving productivity without requiring separate adjustment mechanisms for each workpiece
2Loss of time
If multiple workpieces are handled sequentially through a single posture adjustment mechanism, then the device structure remains simple, but the processing time increases significantly
Solution Approach 1:
Multiple workpieces are pre-positioned on the carrier at different holding positions before entering the posture adjustment mechanism. This preliminary arrangement allows the system to process multiple workpieces in parallel through simultaneous rotation of the holding bodies, significantly reducing total processing time and improving productivity
Solution Approach 2:
The holding positions are designed to be dynamically rotatable around the central axis, allowing each workpiece to be independently oriented to the correct posture. This dynamic capability enables simultaneous adjustment of multiple workpieces without increasing overall device complexity, addressing the time-loss issue
Data Source
AI summary
A plurality of workpieces on which components are to be placed are lined up in a row and held by a workpiece holding body, and the workpiece holding body is placed on a carrier and is transported to a working position using a transport conveyor. After the workpiece holding body is chucked by a chuck portion, the workpiece holding body is separated from the carrier by linking an operation of lifting and lowering the chuck portion using a lifting-lowering mechanism and an operation of moving the carrier in a transport direction. The chuck portion which chucks the workpiece holding body is rotated by a rotation mechanism, postures of the plurality of workpieces which are held in the workpiece holding body are adjusted, and then, the components are placed on component placing parts using a placing head.