Machining Device with Detachable Spindle Unit for Rapid Changeover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Machining devices with two-roll, one-shoe spindle mechanisms face significant productivity losses due to complex and time-consuming adjustments required for changing workpiece specifications, leading to increased operation stop times and reduced operation rates when switching between different bearing numbers.
Innovation Solution
A machining device design featuring a detachable spindle unit mounted on a device base with a lifting mechanism and changeover cart, allowing for quick replacement and positioning adjustments, facilitated by a connector structure for electrical and hydraulic connections, enabling rapid changeover between workpieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a two-roll, one-shoe spindle mechanism is used to rotate the workpiece, then the workpiece can be loaded quickly and idle time can be reduced, but the components require frequent replacement and position adjustment when bearing number changes, increasing operation stop time
Solution Approach 1:
The spindle mechanism is divided into separate modular components: upper rolls, lower rolls, and shoe can be independently replaced. This segmentation allows quick changeover by swapping individual components rather than adjusting the entire mechanism, reducing operation stop time when bearing numbers change.
Solution Approach 2:
The invention uses master workpieces with different bearing numbers to pre-set the positional parameters of the rolls and shoe. By changing the master workpiece, the system automatically adapts to different bearing specifications without manual adjustment, maintaining high operation rate while enabling quick parameter changes.
2Adaptability or versatility
If position adjustment mechanism and angle adjustment mechanism are used to change bearing number, then workpiece specifications can be adjusted, but multiple adjustments and component repositioning increase operation stop time
Solution Approach 1:
Master workpieces with different bearing numbers are prepared in advance with pre-determined roll positions and shoe angles. Before actual machining, the appropriate master workpiece is selected and positioned, which pre-configures all adjustment parameters. This eliminates the need for time-consuming adjustments during operation stoppages.
Solution Approach 2:
The invention uses master workpieces as physical templates or copies that embody the geometric parameters for different bearing numbers. By copying the master workpiece configuration to the actual workpiece setup, the system achieves quick changeover without complex measurement and adjustment procedures.
Data Source
AI summary
A machining device includes: a spindle unit including a spindle that rotates a workpiece; and a device base having the spindle unit mounted thereon. The spindle unit includes upper and lower rolls that rotate the workpiece by contacting the workpiece, upper and lower rotary shafts that rotate integrally with the upper and lower rolls and serves as the spindle, and a support member that supports the workpiece. The device base has mounted thereon the spindle unit, a motor that rotates the upper and lower rotary shafts, and a grindstone to be brought into contact with the workpiece. The spindle unit is detachably mounted on the device base.