EDM Filter Unit Clamping Mechanism for Faster Replacement
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Solution Overview
Problem
Conventional electric discharge machines require significant time and labor for replacing the filter unit due to the need for extensive screwing operations, which complicates the replacement process.
Innovation Solution
A novel fixing mechanism for the filter unit in an electric discharge machine, featuring a bracket, rotating member, lever, nut, and pressing member, allows for easy separation and re-engagement, reducing the screw-back distance and simplifying the replacement process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter unit is fixed using a conventional screw-based fixing mechanism, then the filter unit is securely fixed in position, but the replacement operation requires significant time and labor due to extensive screwing operations
Solution Approach 1:
The fixing mechanism is divided into separate functional components: a fixing body with threaded engagement and a pressing member with abutting surface. This segmentation allows the pressing member to be independently positioned and engaged, eliminating the need for extensive screwing operations while maintaining secure fixation.
Solution Approach 2:
The pressing member is preliminarily positioned by the fixing body through threaded engagement, and then the abutting surface is engaged with the filter unit case. This preliminary positioning action reduces the subsequent screw-back distance required for secure fixation, thereby reducing replacement time.
2Reliability
If the filter unit is fixed using a conventional screw-based fixing mechanism, then the filter unit is securely fixed in position, but the replacement operation requires significant labor due to extensive screwing operations
Solution Approach 1:
The fixing mechanism separates the threaded engagement function (fixing body) from the pressing function (pressing member with abutting surface). This allows operators to perform a simple initial engagement followed by minimal tightening, significantly reducing the labor required compared to conventional all-or-nothing screwing operations.
Solution Approach 2:
The fixing body acts as an intermediary between the pressing member and the filter unit case. It provides preliminary positioning and supports the pressing member, enabling a two-stage fixing process that is easier to operate than direct screwing while maintaining secure fixation.
3Ease of operation
If the screw-back distance is reduced for easier filter unit replacement, then the replacement operation becomes simpler and faster, but the secure engagement between the fixing mechanism and filter unit may be compromised
Solution Approach 1:
The fixing body preliminarily positions the pressing member through threaded engagement, establishing a stable base before the final pressing action. This preliminary action ensures that even with reduced screw-back distance, the engagement remains reliable because the pressing member is already correctly positioned and supported.
Solution Approach 2:
The fixing body serves as an intermediary that provides both threaded engagement and support for the pressing member. This dual function ensures that reduced screw-back distance does not compromise engagement reliability, as the fixing body maintains stable connection while enabling the pressing member to secure the filter unit with minimal tightening.
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 new fixing mechanism significantly reduces the time and effort required for filter unit replacement, enhancing operational efficiency and reducing operator burden.
Implementation Method 1
a rod (65) screwed with the nut (63)
Implementation Method 2
a lever (6) having: a link (61) of which one end is connected to the rotating member (53)
Data Source
AI summary
An electric discharge machine 1 incudes: a machining tank 11; a dirty fluid tank 13; a circulation pump 21; a filter unit 3 including a filter element 31 and a filter case 33; a fixing mechanism 5 fixing the filter unit; a clean fluid tank 15; and a fluid feeding pump 23. The fixing mechanism includes: a bracket 51 fixed in a predetermined position; a rotating member 53 rotatably connected to the bracket; a lever 6 having: a link 61 of which one end is connected to the rotating member, a nut 63 arranged on the other end of the link, and a rod 65 screwed with the nut; a locked member 55 fixed to the bracket and engaged with the rod; and a pressing member 7 of which one end is connected to the rotating member 53 and the other end presses the filter case.