Magnetic Clamp Release Structure for Easier Seal-Safe Maintenance
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Solution Overview
Problem
Existing magnetic clamp devices require specialized tools and are difficult to disassemble due to strong neodymium magnets, making maintenance challenging, especially when sealants are used.
Innovation Solution
The magnetic clamp device features a plate body with a bottomed cavity and magnetic pads having fastening holes that communicate, allowing for easy disassembly using a cap and tool bolt to peel off the magnetic pole and alnico magnet from the plate body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If O-rings or sealants are used to improve liquid tightness, then water ingress prevention is improved, but maintenance difficulty increases and disassembly becomes extremely difficult
Solution Approach 1:
The magnetic clamp device is divided into separable components: the plate body with cavity, the magnetic pad assembly (magnetic pole + alnico magnet), and the cap. This segmentation allows the magnetic pad assembly to be removed and replaced independently without damaging seals or requiring special tools, resolving the contradiction between maintaining liquid tightness and enabling easy maintenance.
2Force
If neodymium magnets are used to provide strong magnetic force, then clamping force is improved, but disassembly difficulty increases due to strong magnetic attraction
Solution Approach 1:
A release mechanism is pre-configured in the form of a release hole through the plate body, allowing a tool to be inserted and push the magnetic pole and alnico magnet assembly away from the cap. This preliminary preparation of the release path enables easy disassembly despite the strong magnetic force of the neodymium magnet.
3Stability of the object's composition
If magnetic pole and alnico magnet are tightly fixed to plate body, then structural stability is improved, but maintenance accessibility worsens
Solution Approach 1:
The connection between the magnetic pad assembly and plate body is made dynamically controllable: during operation, the magnetic pole and alnico magnet are tightly fixed to the cap providing stable clamping; during maintenance, the release mechanism allows easy separation. This dynamic transition resolves the contradiction between structural stability and maintenance accessibility.
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
Enables easy maintenance by allowing the magnetic pole and alnico magnet to be peeled off with a single tool bolt, simplifying the disassembly process and reducing the need for specialized tools.
Implementation Method 1
A magnetic clamp device utilizing magnetic adsorption force is known with respect to mold-fixing of an injection molding machine
Implementation Method 2
can be switched between a magnetic circuit closed in the plate body and a magnetic circuit passing through the mold by controlling a magnetic polarity of the alnico magnet with a coil
Data Source
AI summary
Provided is a magnetic clamp device having a disassembly structure that is easy to maintain. In the magnetic clamp device 1, a magnetic pole 21 and an alnico magnet 23 each have fastening holes 21a, 23a that communicate with each other. The cavity portion 31 of the plate body 3 has an opening 33 that penetrates from the bottom surface 32b thereof to the back side of the plate body 3. A cap 7 having a base portion 71 having a bolt hole 74 communicating with the fastening holes 21a, 23a and a flange portion 72 abutting the surface 3b of the back side of the plate body 3 is inserted into the opening 33. A bolt 8 inserted into the fastening hole 23a of the magnetic pole 21 and the alnico magnet 23 from the front side of a magnetic pad 2 is screwed into a female screw thread 74a provided in the bolt hole 74 of the cap 7.