Press Machine Ram Parallelism Adjustment via Eccentric Pin Mechanism
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Solution Overview
Problem
Existing press machines require high work precision to achieve excellent parallelism between the ram and bolster surfaces, leading to increased manufacturing costs, and there is a need for a technique to improve parallelism at lower costs.
Innovation Solution
The press machine incorporates a mechanism with eccentric pins and movable bases that allow for adjustable tilt and rotation, enabling on-site adjustment of the parallelism between the ram and bolster surfaces using coupling pins and eccentric pins, which facilitates precise alignment without the need for high precision manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high work precision is used to achieve excellent parallelism between the lower surface of the ram and the upper surface of the bolster, then the parallelism is improved, but the manufacturing cost increases
Solution Approach 1:
The invention changes the parameter of parallelism from a fixed manufacturing specification to an adjustable operational parameter. By providing adjustment mechanisms (wedge-shaped blocks, screws, or hydraulic cylinders) that allow the ram or bolster to be tilted or positioned at adjustable angles, the system can achieve the required parallelism through parameter adjustment rather than through high-precision manufacturing of fixed components.
2Manufacturing precision
If high work precision is required for the ram and bolster surfaces, then the parallelism is improved, but the device complexity increases
Solution Approach 1:
The invention introduces dynamic adjustment capabilities to an otherwise static structure. The ram or bolster is made adjustable through mechanisms such as wedge-shaped blocks that can be moved laterally, screws that can be rotated to change position, or hydraulic cylinders that can extend and retract. These dynamic elements allow the system to adapt and achieve parallelism without requiring the entire structure to be manufactured with high precision.
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
This solution allows for stable and adjustable parallelism between the ram and bolster surfaces, reducing manufacturing costs and accommodating variations in component finish quality, thereby improving the press machine's performance and flexibility.
Implementation Method 1
a mechanism with eccentric pins and movable bases that allow for adjustable tilt and rotation, enabling on-site adjustment of the parallelism between the ram and bolster surfaces using coupling pins and eccentric pins
Data Source
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AI summary
A press machine whose parallelism between the lower surface of a ram and the upper surface of a bolster is improved at lower costs is provided. In a press machine 10 of the present disclosure, movable bases 50 are mounted on the front surface of a ram supporting wall 34 above a bolster 32 in a supporting frame 11. A pair of rails 51 is provided to the front surface of each movable base 50. Sliders 52 engaging with the rails 51 are fixed to the rear surface of the ram 20. Each movable base 50 is supported so as to be capable of tilting in the lateral direction about a coupling pin 70, and fixed to any desired tilted position by fixing bolts B1.