Machine Tool Door Linear Drive Sealing Against Chips and Coolant
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Solution Overview
Problem
Conventional electric door driving mechanisms in machine tools are prone to malfunction due to chip entrapment and fluid penetration, leading to rusting and increased noise, and have complex structural designs that complicate maintenance.
Innovation Solution
An electric door driving mechanism featuring a track unit, sliding unit, linear motor, and water-resistant pieces that prevent foreign objects and liquids from entering, with a simple structure for easy assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional electric door driving mechanism uses a motor and reduction device, then the door can be controlled to open and close, but cutting chips get stuck in the bottom opening and cutting fluid penetrates to cause rusting of internal mechanical parts
Solution Approach 1:
The patent divides the bottom opening protection into separate functional segments: a first water-resistant piece fixed to the base mount that provides structural sealing, and a second water-resistant piece attached to the sliding unit that moves with the door. This segmentation allows each piece to perform its specific sealing function independently while maintaining overall system reliability.
Solution Approach 2:
The water-resistant pieces act as intermediary protective elements between the harmful external environment (chips and cutting fluid) and the internal mechanical parts (motor and reduction device). These intermediaries prevent direct contact between contaminants and sensitive components, eliminating rusting and extending service life.
2Ease of operation
If the conventional electric door driving mechanism has a complex structural design, then the door can be driven reliably, but disassembly and assembly tasks are complicated and time-consuming
Solution Approach 1:
The patent segments the water-resistant protection system into two independently fixable pieces, where the first piece attaches to the base mount and the second piece attaches to the sliding unit. This segmentation allows maintenance personnel to access and replace individual pieces without disassembling the entire door driving mechanism, significantly simplifying maintenance operations.
Solution Approach 2:
The water-resistant pieces are extracted as separate, removable components from the integrated door driving mechanism. The second water-resistant piece can be detached from the sliding unit and removed independently, allowing easy access to internal components for maintenance without complicated disassembly procedures.
3Reliability
If the conventional electric door driving mechanism operates without basic splash protection, then the structure remains simple, but cutting fluid easily penetrates through the bottom opening to cause rusting
Solution Approach 1:
The patent employs thin water-resistant pieces (essentially protective films or shields) that are fixed to the base mount and sliding unit. These thin protective barriers effectively block cutting fluid penetration while adding minimal structural complexity. The pieces can be simple metallic or plastic shields that provide splash protection without requiring complex mechanisms.
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
Prevents chip entrapment and fluid penetration, reducing noise and vibration, while allowing for quick assembly and maintenance, thus extending the mechanism's service life.
Implementation Method 1
The linear motor comprises a stator disposed in the accommodation groove and arranged along the longitudinal axis, and a mover disposed on the slide, facing the stator, and arranged along the longitudinal axis. The mover is driven by the stator to drive the slide to slidably move in the sliding groove.
Data Source
AI summary
An electric door driving mechanism includes a base mount having an accommodation groove, a sliding groove below the accommodation groove and a bottom opening communicated with the sliding groove, a slide slidably moveable in the sliding groove, a door panel mounting member moveable along with the slide, a linear motor having a stator disposed in the accommodation groove, and a mover fixed on the slide and drivenable by the stator to move, and front and rear water-resistant pieces fixed to the base mount and partially abutted with each other to close the bottom opening while a body portion of the door panel mounting member passes between the front and rear water-resistant pieces and has front and rear sides abutted against the front and rear water-resistant pieces, respectively, thereby preventing foreign objects and liquid from entering the inside of the electric driving mechanism via the bottom opening.