Grinding Machine for Mold Inner Surfaces
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Solution Overview
Problem
Current grinding machines for molds, especially those used in steel ingot casting, face challenges in achieving precise dimensional accuracy and efficient processing due to the conical shape of the radial inner surface, requiring costly and time-consuming measurement and CNC programming, and are limited in reaching all areas of large molds without complex crane systems.
Innovation Solution
A grinding machine design featuring a motor-driven grinding device with a support device that applies uniform contact pressure via a pressure device, allowing for precise machining without CNC control and enabling grinding of large molds without crane assistance, with a rotating mechanism for full access and adjustable contact pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If CNC-controlled grinding machines are used to achieve precise dimensional accuracy, then manufacturing precision is improved, but device complexity and cost increase due to measurement and programming requirements
Solution Approach 1:
The grinding device uses its own weight and a spring mechanism to automatically apply consistent grinding pressure against the mold surface, eliminating the need for external measurement and CNC programming systems. The device self-regulates the grinding force through mechanical means.
Solution Approach 2:
The invention replaces expensive, complex CNC measurement and control systems with a simple, inexpensive mechanical grinding device that achieves sufficient precision through its basic mechanical design without requiring costly auxiliary systems.
2Device complexity
If semi-automatic grinding machines are used to reduce complexity, then device complexity is reduced, but productivity decreases due to manual rotation and limited accessibility
Solution Approach 1:
The grinding device is suspended from above and can rotate around the mold's longitudinal axis, providing access to all surfaces including vertical and overhead areas. This top-down approach with rotational capability eliminates the need for manual repositioning and crane operations.
Solution Approach 2:
The single grinding device can process all surfaces of the mold (horizontal, vertical, and overhead) through rotation, making one device universally capable of grinding any mold surface without requiring multiple machines or complex positioning systems.
3Adaptability or versatility
If long-arm grinding machines are used to reach large molds, then adaptability is improved, but contact pressure is insufficient resulting in longer processing times
Solution Approach 1:
The spring mechanism applies downward force on the grinding device, using gravitational force and spring tension to ensure sufficient contact pressure between the grinding wheel and mold surface, compensating for the light weight of the long-arm positioning device.
Solution Approach 2:
The spring mechanism provides dynamic contact pressure that automatically adjusts to maintain consistent grinding force, allowing the device to adapt to varying mold geometries while maintaining sufficient pressure for efficient material removal.
4Adaptability or versatility
If molds are rotated by crane to access all surfaces, then adaptability is improved, but loss of time and operational complexity increase
Solution Approach 1:
Instead of rotating the heavy mold horizontally, the lightweight grinding device rotates around the mold's axis from above, providing access to all surfaces without moving the mold itself, thereby eliminating time-consuming crane operations.
Solution Approach 2:
Rather than moving the heavy object (mold) to access different surfaces, the invention moves the lightweight grinding device around the stationary mold, inverting the traditional approach and dramatically reducing repositioning time and complexity.
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 design enables faster, more cost-effective, and precise grinding of large molds without the need for precise measurement or CNC programming, reducing setup times and processing costs while achieving high contact pressure for efficient material removal.
Implementation Method 1
a pressure device which supports the grinding device and the support device against one another and presses against the radial inner surface
Implementation Method 2
a motor-driven grinding device for machining the radial inner surface of the mold
Data Source
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AI summary
The grinding machine (10) has a grinding device (13) which is positioned at one end (15) of an arm (14) of positioning device (12) and positioned relative to an radial inner surface (17) of a mold (11). The grinding device has a motor-driven grinding unit for processing of radial inner surface of the mold. A support unit is arranged opposite to a radial inner surface of the mold along longitudinal axis (20). A pressing device is supported on the support unit, for pressing against the radial inner surface of the mold. An independent claim is included for method for inner processing of mold.