Segmented Outer Frame for Cubic Hinge Press Stress Management
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Solution Overview
Problem
The existing cubic hinge press equipment for superhard material synthesis faces issues with stress concentration on hinge sleeves, leading to potential breakage and high equipment investment, along with significant errors in concentricity and verticality due to fit clearance and stress-induced positional changes.
Innovation Solution
An outer frame design for the cubic hinge press that includes supporting planes for back cover plates, windows for assembly and maintenance, and radial movement positioning pins, allowing for reduced stress on hinge sleeves and improved precision by transferring axial recoil forces to the outer frame, thereby reducing material strength requirements and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the hinge sleeves are subjected to radial expansion force and outward back-thrust force during pressing, then the press can achieve high pressure synthesis, but the ear part of hinge ear bears great stress and may easily break
Solution Approach 1:
The outer frame is divided into multiple independently connectable components (upper frame, lower frame, side frames) that can be assembled and disassembled through hinge ears and pins. This segmentation allows the frame to bear pressing forces while enabling easy maintenance and replacement of stressed components without requiring complete disassembly of the entire press structure.
2Ease of manufacture
If the fit clearance for pin connection is used, then the assembly is simple, but the accumulative error of press is big and there will be great changes in the spatial position degree of the central line
Solution Approach 1:
Radial movement positioning pins are introduced as intermediary components between the hinge ears and pins. These positioning pins eliminate fit clearance by providing precise radial positioning, ensuring that the central line spatial position remains accurate while still allowing for simple assembly through the hinge ear connection mechanism.
3Power
If the hinge ear is designed to bear great stress, then the press can function under high pressure, but the equipment investment is major due to high strength requirements
Solution Approach 1:
The outer frame is segmented into multiple connectable components that can be independently manufactured and assembled. This segmentation allows for more reasonable stress distribution across the structure, enabling the use of materials with lower strength requirements while still achieving the necessary pressing capability, thereby reducing overall equipment investment.
4Strength
If the outer frame is designed as integral structure, then the strength is high, but the assembly and maintenance becomes difficult
Solution Approach 1:
The outer frame is designed as a segmented structure with multiple components connected by hinge ears and pins, allowing for easy assembly and disassembly. The radial movement positioning pins ensure that despite the segmented design, the frame maintains high strength and precision by eliminating fit clearance and providing accurate radial positioning of connected components.
Data Source
AI summary
The present invention provides an outer frame for cubic hinge press and the cubic hinge press with this outer frame, said outer frame encloses an accommodation space; The supporting planes used for supporting and fixing the back cover plates of hinge sleeve cylinder are set around the inner walls of the outer frame and on the inner walls of upper and lower surfaces of outer frame; A window for the assembly, disassembly and maintenance of press is correspondingly set between two adjacent supporting planes on the outer frame. According to different needs, the outer frame may be designed as square frame, butterfly frame, basket type frame or spherical frame. The hinge press formed by connecting six hinge sleeve piston components through reinforcing plate or through hinge ears and pins is installed in the accommodation space enclosed by the outer frame, thus forming a cubic hinge press. The outer frame for cubic hinge press provided by present invention has simple structure, which is convenient for assembly, disassembly and maintenance of press. The cubic hinge press with said outer frame provided by present invention is featured by small equipment investment and high precision of press.