Magnetic Clamp Holder With Neutralizing Field for Precision Positioning
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Solution Overview
Problem
Conventional clamp holders for mechanical arms have low positioning precision (±0.1 mm) and are prone to abrasion, limiting their use in high-precision manufacturing and causing decreased accuracy over time.
Innovation Solution
A magnetic clamp holder with a housing, a magnetic structure comprising a permanent magnetic module, an electro-magnetic module, and a magnetic shield plate, which creates a neutralizing magnetic field to improve positioning precision and reduce wear by using positioning pins for alignment, allowing for precise engagement with clamping devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional clamp holders with ball bearings and guiding elements are used, then the clamping function is achieved, but the positioning precision is low (±0.1 mm) and components are easily abraded
Solution Approach 1:
The patent replaces the mechanical clamping system (ball bearings, guiding elements, rotatable cylinders) with a magnetic field-based system. The magnetic structure creates magnetic fields that attract the clamping device, eliminating mechanical contact and abrasion while achieving higher positioning precision of ±0.03 mm through precise magnetic field control
Solution Approach 2:
The patent changes the fundamental operating parameter from mechanical force to magnetic field strength. By controlling the magnetic field parameters (intensity, distribution, neutrality), the system achieves precise positioning without mechanical wear, resolving the contradiction between precision and reliability
2Manufacturing precision
If mechanical clamping components are used, then the clamping function is achieved, but the positioning precision decreases over time due to abrasion
Solution Approach 1:
The magnetic field-based clamping system eliminates mechanical components that undergo wear over time. The magnetic structure maintains consistent positioning precision (±0.03 mm) throughout its service life without the degradation experienced by mechanical ball bearings and guiding elements
Solution Approach 2:
The patent eliminates the need for replaceable mechanical wear components. The magnetic structure provides a durable, maintenance-free solution that does not require periodic replacement of abraded parts, extending the operational duration significantly
3Manufacturing precision
If conventional clamp holders are used, then the basic clamping function is achieved, but they cannot meet higher precision manufacturing requirements
Solution Approach 1:
By changing from mechanical to magnetic field control, the system achieves positioning precision of ±0.03 mm, enabling adaptation to high-precision manufacturing applications while maintaining the basic clamping function for broader versatility
Solution Approach 2:
The magnetic clamp holder structure can serve multiple functions: precise positioning (±0.03 mm), secure clamping through magnetic attraction, and easy release by neutralizing the magnetic field, making it adaptable to various precision manufacturing requirements
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 magnetic clamp holder achieves a positioning precision of ±0.03 mm and minimizes abrasion, enabling higher precision manufacturing and reliable attachment/detachment of workpieces with reduced risk of falling or heat generation.
Implementation Method 1
The electro-magnetic module is able to create a magnetic field for neutralizing a magnetic field of the permanent magnetic module
Implementation Method 2
The magnetic structure includes a permanent magnetic module
Data Source
AI summary
An exemplary magnetic clamp holder used for a mechanical arm, includes a housing (21), a magnetic structure (22), and two positioning pins (25). The housing includes an attaching portion (211), and a joining portion (213) fixed to the attaching portion, the attaching portion and the joining portion cooperatively defining a receiving cavity (218). The positioning pins are disposed on the attaching portion of the housing. The magnetic structure is received in the receiving cavity. The magnetic structure includes a permanent magnetic module (223), an electro-magnetic module (225), and a magnetic shield plate (227) disposed between the permanent magnetic module and the electro-magnetic module. The electro-magnetic module is able to create a magnetic field for neutralizing a magnetic field created by the permanent magnetic module.