Suction Nozzle Orientation Control for Component Mounting
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Solution Overview
Problem
Existing component mounting systems are inefficient in picking up components using suction nozzles with rotational symmetries other than 180-degree, as they do not account for various directional symmetries of suction nozzles.
Innovation Solution
The system incorporates a mounting head with multiple suction nozzles arranged at predetermined angular intervals, allowing for the determination of nozzle angles based on directionality information, enabling efficient pickup by revolving or spinning nozzles to align with component angles, and utilizing Z-axis driving devices to lift and lower nozzles simultaneously for components with multiple directional symmetries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the system uses a suction nozzle with 180-degree rotational symmetry and controls two lifting and lowering devices to pick up components simultaneously, then the pickup efficiency is improved for 180-degree symmetric components, but the system cannot efficiently handle components with other multi-direction rotational symmetries
Solution Approach 1:
The suction nozzle is designed with rotational capability, allowing its orientation to be dynamically adjusted during the pickup process. The spinning mechanism enables the nozzle to adapt its angle to match components with different rotational symmetries (180-degree, 90-degree, or other multi-direction symmetries), transforming a static system into a dynamic one that can respond to various component types.
Solution Approach 2:
The system changes the rotational parameter of the suction nozzle to optimize pickup efficiency for different component symmetries. By adjusting the nozzle's spinning position to specific angles (e.g., 0°, 90°, 180°, 270°), the system adapts to components with different rotational symmetries, effectively changing the operational parameters to match the component characteristics.
2Manufacturing precision
If the system revolves and spins multiple nozzle holders to align nozzle angles with component angles, then the pickup precision is improved, but the operation time and complexity increase
Solution Approach 1:
The system performs preliminary positioning of nozzle holders at predetermined revolving positions before the actual pickup operation. By pre-arranging the angular positions of multiple nozzle holders and spinning them to predetermined angles in advance, the system minimizes the time required during the actual pickup process, as the nozzles are already aligned with their target components.
Solution Approach 2:
The revolving and spinning operations are integrated into the continuous pickup process rather than being separate preparatory steps. The mounting head revolves to position multiple nozzle holders simultaneously, and the spinning operation continuously adjusts nozzle angles during the pickup sequence, maintaining continuous useful action without idle positioning time.
3Productivity
If the system uses multiple lifting and lowering devices at different revolving positions, then the simultaneous pickup of multiple components is enabled, but the device complexity increases
Solution Approach 1:
Each lifting and lowering device is designed to handle multiple nozzle holders at different revolving positions through the spinning mechanism. The same lifting and lowering device can service different nozzle holders by revolving the mounting head to different positions, making each device multi-functional and reducing the total number of devices needed while maintaining simultaneous pickup capability.
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 allows for efficient component pickup and mounting by aligning nozzle angles with component angles, reducing pickup time and improving productivity, especially for components with two-direction, four-direction, or one-direction symmetries, and enables simultaneous pickup of multiple components.
Implementation Method 1
The suction nozzles can be rotated, raised/lowered, and be supplied with negative pressure in order to hold an electronic component.
Data Source
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AI summary
A component mounting system includes a head configured to be capable of revolving multiple suction nozzles in a circumferential direction and to be capable of simultaneously spinning the multiple suction nozzles, a lifting and lowering device configured to lift and lower a suction nozzle at a predetermined revolving position, among the multiple suction nozzles, a storage device configured to store any one of multiple pieces of directionality information in association with identification information of the suction nozzle, the multiple pieces of directionality information including at least: no directionality in which the component is able to be picked up at any spinning position; one direction in which the component is able to be picked up only at one specific spinning position; two directions in which the component is able to be picked up only at any one of two specific spinning positions; and four directions in which the component is able to be picked up only at any one of four specific spinning positions, and a control device configured to acquire the corresponding directionality information from the storage device based on the acquired identification information of the suction nozzle and to perform pickup of the component supplied from the component supply device at the spinning position in accordance with the directionality information.