Toothed Eccentric Ring Adjustment for Mechanical Press
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Solution Overview
Problem
Current mechanical press systems for metal forging require complex and time-consuming adjustments to maintain dimensional accuracy, leading to interruptions in the production cycle due to tool wear, press deflection, and temperature fluctuations.
Innovation Solution
A plunger adjustment system featuring a toothed eccentric ring rotated by a worm, with hydraulic unlocking, automatic locking, temperature monitoring, and optimized lubrication, allowing for rapid ram adjustments without interrupting the production cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex adjustment devices are used to maintain dimensional accuracy, then manufacturing precision is improved, but device complexity increases and adjustment time increases
Solution Approach 1:
The adjustment system is segmented into modular components: toothed eccentric ring, worm gear, hydraulic cylinder, and locking mechanism. Each component performs a specific function, allowing independent optimization and maintenance while collectively achieving precise ram position control.
Solution Approach 2:
The patent replaces purely mechanical adjustment systems with a hybrid system that uses hydraulic cylinders to provide unlocking force and controlled movement. This substitution reduces the mechanical complexity of the adjustment mechanism while improving precision and control.
2Manufacturing precision
If complex adjustment devices are used to maintain dimensional accuracy, then manufacturing precision is improved, but loss of time increases due to production interruptions
Solution Approach 1:
The hydraulic system is pre-charged and ready to provide unlocking force immediately when adjustment is needed. The toothed eccentric ring and locking mechanism are pre-positioned, allowing rapid adjustment without extensive preparation time, thus minimizing production interruptions.
Solution Approach 2:
The adjustment system transitions from a static, manually-operated mechanism to a dynamic, hydraulically-controlled system. The hydraulic cylinder enables controlled movement of the toothed eccentric ring, allowing adjustments to be made quickly and smoothly during brief production pauses.
3Manufacturing precision
If automatic locking mechanism is used to eliminate play, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The locking function is merged with the toothed eccentric ring structure itself. The teeth on the ring engage with corresponding elements in the link, providing both position adjustment and automatic locking in a single integrated component, thereby reducing overall system complexity while ensuring precision.
Solution Approach 2:
The automatic locking mechanism uses the hydraulic pressure and spring forces to self-lock the toothed eccentric ring in position without requiring external locking devices or manual intervention. The system serves itself by using its own components to maintain precise positioning.
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 quick and precise ram adjustments during metal forging, maintaining production continuity by reducing adjustment time and ensuring dimensional accuracy through automatic locking, temperature control, and efficient lubrication distribution.
Implementation Method 1
The bearing bushing provides helical grooves that collect the grease and distribute it over the entire internal surface
Implementation Method 2
During the ram adjustment, the upper part of the link is raised by hydraulic cylinders, which oppose the closing force exerted by the springs
Implementation Method 3
a temperature sensor inserted into the lower part of the link constantly measures the temperature of the bearing bush in the toothed eccentric ring
Data Source
AI summary
The press has a plunger adjustment system with a toothed eccentric ring (11) and a worm gear (9). A self-locking structure is arranged for ensuring compensation of clearance during operation of the press. A series of screws (6) is arranged for mechanically locking a lower wing part (1) and an upper wing part (4) of the press. The lower wing part and the upper wing part are hydraulically opened by hydraulic cylinders (5). The lower and upper wing parts are separated from one another in closed condition of the self-locking system.