Wood Lathe Tool Rest Locking Structure to Prevent Rod Deformation
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Solution Overview
Problem
Conventional wood lathe tool rest positioning systems suffer from deformation of the operation rod due to prolonged force-bearing, leading to unstable locking and positioning issues.
Innovation Solution
A tool rest positioning device with a holding member that receives the operation rod, preventing deformation by supporting it within a containing groove, ensuring consistent pressing force against the slide rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operation rod is used to bear the pulling force at the locked position, then the positioning function is achieved, but the operation rod deforms due to prolonged force-bearing
Solution Approach 1:
The patent introduces a holding member as an intermediary component between the operation rod and the base. This holding member receives and supports the operation rod at the locked position, preventing the operation rod from bearing the full pulling force directly. The holding member transfers the force to the base through the containing groove, thereby protecting the operation rod from deformation while maintaining the positioning function.
Solution Approach 2:
The holding member is pre-positioned within the containing groove of the base to provide support for the operation rod before the locking action occurs. When the operation rod rotates to the locked position, the holding member is already in place to receive and support it, preventing deformation from occurring in the first place rather than correcting it afterward.
2Ease of operation
If the operation rod rotates to lock the positioning device, then the tool rack is positioned, but the operation rod becomes deformed after long period of usage
Solution Approach 1:
The holding member serves as a mediator that supports the operation rod during and after the positioning operation. This allows the operation rod to perform its rotation and locking function without bearing the full mechanical stress, preventing cumulative deformation that would compromise future locking stability.
Solution Approach 2:
The holding member provides beforehand cushioning support for the operation rod at the locked position. By being in place before the locking force is applied, it prevents the operation rod from experiencing excessive stress that would lead to deformation over time, thereby maintaining long-term locking stability.
3Reliability
If the pulling member pulls the abutting assembly to abut against the slide rail, then the tool rack is locked, but the operation rod moves away from the containing groove due to deformation
Solution Approach 1:
The holding member acts as an intermediary that stabilizes the operation rod's position within the containing groove. When the pulling member exerts force to lock the tool rack, the holding member prevents the operation rod from moving away or tilting within the groove, ensuring the locking force is transmitted effectively while maintaining the operation rod's positional stability.
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
The solution maintains the operation rod's integrity, maintaining stable locking and positioning of the tool rest on the slide rail, preventing deformation-induced failures.
Implementation Method 1
The eccentric member comprises an eccentric bore passing therethrough, and the operation rod passes through the eccentric bore. At the locked position, the eccentric member is applied to drive the pulling member to pull the abutting assembly in a direction perpendicular to the rotation axis to abut against the slide rail of the lathe.
Implementation Method 2
The holding member is slidably disposed in the containing groove and arranged in the moving path of the pulling member. Therefore, at the locked position, the holding member prevents the operation rod from moving away from the containing groove.
Data Source
AI summary
A tool rest positioning device for wood lathe includes a base, an operation rod, a positioning device, and a holding member. The operation rod passes through the base and rotates between a locked position and an unlocked position. The positioning device includes an eccentric member, a pulling member, and an abutting assembly. The operation rod passes through the eccentric member. The pulling member is pivotally disposed on the outer periphery of the eccentric member. The abutting assembly is disposed on one end of the pulling member away from the eccentric member. At the locked position, the eccentric member drives the pulling member to pull the abutting assembly to abut against the slide rail of the lathe. The holding member is disposed in the base, preventing the operation rod from moving away from a containing groove at the locked position to be deformed.