Dual Rotor Placement Head for Simultaneous Component Handling
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Solution Overview
Problem
Modern placement machines face challenges in achieving high placement accuracy and rate due to the miniaturization of electronic assemblies, requiring efficient component placement on component carriers with varying distances and positions.
Innovation Solution
A placement head with two rotatable rotor assemblies and individually actuable handling devices, allowing for precise adjustment of the relative angle and position of component holding devices to pick up and place multiple components simultaneously, optimizing the 'Collect & Place' process cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single rotor assembly with multiple handling devices is used, then the device complexity is reduced, but the placement rate cannot be sufficiently increased due to sequential component handling
Solution Approach 1:
The placement head is divided into two independent rotor assemblies (first rotor assembly and second rotor assembly), each capable of independently picking up and placing components. This segmentation allows parallel operation of multiple handling devices, significantly increasing the placement rate while maintaining manageable complexity through modular design.
2Adaptability or versatility
If the distance between handling devices is fixed, then the device complexity is reduced, but the adaptability to various component distances and positions is limited
Solution Approach 1:
The rotor assemblies incorporate adjustable mechanisms that allow the distance between handling devices to be dynamically changed. The second rotor assembly can be rotated to different angular positions, and the handling devices can be adjusted radially, enabling adaptation to various component distances and positions on the component carrier while maintaining a relatively simple overall structure.
Data Source
AI summary
A placement head for automatically placing electronic components on a component carrier. The placement head has a chassis; a first rotor assembly that is mounted so that it is rotatable relative to the chassis about a first axis of rotation and that has a first quantity of first handling devices; and a second rotor assembly that is mounted so that it is rotatable relative to the chassis about a second axis of rotation and that has a second quantity of second handling devices. Each handling device includes a sleeve to which a component holding device for temporarily picking up a component can be attached, and a drive device with a linear drive for moving the sleeve along its longitudinal axis, and a rotary drive for rotating the sleeve about its longitudinal axis. Furthermore, a placement machine with such a placement head and a method for automatic assembly of a component carrier using such a placement head.