Woodworking Vise Camshaft Locking Block Alignment
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Solution Overview
Problem
Woodworking vises often cause workpiece deviation from a straight line direction due to the angle of clamping, leading to unsuitable or imprecise processing.
Innovation Solution
A woodworking vise design featuring a movable jaw with a camshaft and locking block system, where the force applying means rotates the camshaft to press the movable jaw against the vise body, ensuring the force is parallel to the guide rails, preventing deviation and allowing for firm clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the handle is rotated to clamp the workpiece, then the workpiece is firmly clamped between clamping surfaces, but the force direction forms an angle with the longitudinal axis of the vise body, causing deviation from the straight line direction of guide rails
Solution Approach 1:
A guide rail intermediary component is introduced between the movable jaw and the vise body. The guide rail ensures that the clamping force is transmitted along the straight line direction, preventing deviation while maintaining firm clamping. The intermediary component redirects the force vector to align with the guide rail axis.
Solution Approach 2:
Instead of allowing the handle rotation to directly apply force at an angle, the design inverts the approach by using the guide rail to constrain the movement direction. The movable jaw is constrained to move only along the guide rail's straight line direction, so even though the handle rotates at an angle, the resulting clamping force is directed along the guide rail axis.
2Reliability
If the movable jaw assembly is moved to clamp the workpiece, then the workpiece is secured, but the angled force rotation causes clamping deviation affecting processing precision
Solution Approach 1:
The guide rail acts as an intermediary between the movable jaw assembly and the vise body, ensuring that the clamping action is directed along the straight line direction. This intermediary component maintains reliable workpiece fixation while eliminating alignment deviations.
Solution Approach 2:
The design allows the movable jaw assembly to dynamically adjust its position along the guide rail while being constrained to move only in the straight line direction. This dynamic constraint ensures that regardless of the handle rotation angle, the clamping force is always applied parallel to the guide rail axis.
3Force
If the camshaft is rotated to press the movable jaw against the vise body, then firm clamping is achieved, but the force application angle causes deviation from guide rail direction
Solution Approach 1:
The design inverts the force transmission approach by using the guide rail to constrain the movable jaw's movement direction. The camshaft rotation generates clamping force, but the guide rail ensures this force is applied parallel to the guide rail axis, not at an angle.
Solution Approach 2:
The guide rail serves as a force direction intermediary, receiving the clamping force from the camshaft and redirecting it to act parallel to the guide rail axis. This intermediary component decouples the camshaft rotation angle from the actual force application direction.
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 prevents workpiece deviation, enables precise clamping, and allows for easy operation by ensuring the force applied is always parallel to the guide rails, facilitating the clamping of workpieces on both sides.
Implementation Method 1
a camshaft having at least one cam, the force applying means connected to the camshaft, the force applying means able to rotate about a center axis of the camshaft to drive the camshaft to rotate therewith to cause the cam of the camshaft to press against the locking block
Implementation Method 2
a bottom surface of the locking block is slidably connected to the top surface of the vise body
Data Source
AI summary
A woodworking vise includes a profiled vise body (1), a first jaw (2) and a second jaw (2′). The first jaw (2) and the second jaw (2′) are disposed at both ends of the vise body along its longitudinal axis. The woodworking vise further includes at least one movable jaw (3). The at least one movable jaw (3) is slidably connected to a top surface of the profiled vise body. Between the movable jaw (3) and the top surface of the profiled vise body (1), a locking block (36) is disposed, and a bottom surface of the locking block (36) is slidably connected to the top surface of the profiled vise body (1). The movable jaw (3) includes a force applying means (34) and a camshaft (35). The camshaft (35) has at least one cam, and the force applying means (34) is connected to the camshaft (35). Moreover, the force applying means (34) is able to rotate about a center axis of the camshaft (35) to drive the camshaft (35) to rotate therewith to cause the cam of the camshaft (35) to press against the locking block (36) and, by means of the locking block (36), press and secure the movable jaw (3) against and to the top surface of the vise body (1). Wherein, the center axis of the camshaft (35) is perpendicular to the longitudinal axis of the profiled vise body (1). This woodworking vise can solve the problem of an angle of clamping deviation.