Electro-Permanent Magnetic Pole Layout for Constant-Thickness Clamping
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Solution Overview
Problem
The challenge is to reduce production costs of electro-permanent magnetic apparatuses without increasing their geometric sizes, particularly thickness, while maintaining equal magnetic anchoring force for ferromagnetic pieces in machinery like milling machines.
Innovation Solution
The solution involves creating new polar units with larger surface areas within the existing thickness of the magnetic apparatus, using a matrix arrangement of polar units with different coercive magnetic cores and a control unit to manage magnetic flows, allowing for reduced numbers of polar units while maintaining equal magnetic force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the anchoring surface area of each polar unit is increased to reduce production costs, then the processing time is reduced and cost decreases, but the geometric sizes and thickness of the magnetic apparatus increase
Solution Approach 1:
The magnetic apparatus is divided into multiple polar units with different surface areas. The apparatus includes at least one first polar unit with a first surface area and at least one second polar unit with a second surface area, where the second surface area is different from the first. This segmentation allows optimization of the anchoring surface distribution to reduce production costs while maintaining the same overall thickness.
Solution Approach 2:
Different regions of the magnetic apparatus have different polar unit configurations tailored to local requirements. By varying the surface area of polar units at different positions, the design achieves cost reduction in specific areas without compromising the overall magnetic performance or increasing the total thickness.
2Ease of manufacture
If the number of polar units is reduced to lower production costs, then manufacturing becomes more economical, but the magnetic anchoring force may be compromised
Solution Approach 1:
The invention changes the parameters of polar units by varying their surface areas. By having polar units with different surface areas rather than uniform sizes, the system achieves the required magnetic anchoring force with a reduced total number of polar units, thereby lowering production costs while maintaining force requirements.
Solution Approach 2:
The magnetic apparatus uses a composite configuration of polar units with different characteristics (different surface areas). This composite approach allows the system to achieve optimal magnetic performance with fewer components, reducing manufacturing complexity and cost while maintaining the necessary anchoring force.
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 results in a lower-cost magnetic apparatus with unaltered thickness, achieving the same magnetic anchoring force with fewer polar units, enhancing efficiency and usability in constrained machine spaces.
Implementation Method 1
Each polar unit comprises at least one coil (30) and at least one magnetic core (40)
Implementation Method 2
The term electro-permanent magnetic apparatus in the continuation of the present description means: a magnetic apparatus made with permanent magnets suitably arranged inside the apparatus itself
Implementation Method 3
an apparatus that requires polar collectors for transporting the magnetic flow made with ferromagnetic material
Data Source
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AI summary
The present invention relates to a magnetic apparatus for magnetically anchoring ferrous elements (P1), comprising a support structure (11) in which thickness (S) a plurality "N" of polar units (30A) is housed, said support structure (11) identifies a first and a second side (12, 13) at the opposite surfaces with the greatest extension, each of said plurality "N" of polar units (30A) comprising a coil (30) having a support (31) of predetermined profile and an electric conductive element (32) wound on said support, a first magnetic core (40) with a first coercive value, generating a first magnetic flow oriented in a first magnetic direction, a plurality of second magnetic cores (90A, 90B) having each its own coercive value, different from said first coercive value. A characteristic of the apparatus is that a first part (90A) of the plurality of second magnetic cores (90A, 90B) generates a second magnetic flow oriented in a second magnetic direction and a second part (90B) of the plurality of second magnetic cores (90A, 90B) generates a third magnetic flow oriented in a third magnetic direction, said third magnetic direction being parallel to said first magnetic direction and of different direction with respect to said second magnetic direction.