Quick-Change Bench Vice Jaws for Stable Conical Clamping
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Solution Overview
Problem
Traditional bench vices face issues with unstable clamping of workpieces due to non-adjustable jaws, difficulty in replacing jaws, and inefficient cleaning, leading to potential damage and increased processing costs.
Innovation Solution
A multi-functional bench vice with a quick-change jaw system featuring a movable vice body, fixed vice body, screw rod, and handle, utilizing opposite helical threads on an adjustment rod and pull rod for easy jaw replacement, along with a quick-change assembly and movable jaw assembly that adapts to different workpiece conicity through adjustable angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the jaw is replaced by traditional screw connection, then the jaw can be securely fixed, but the replacement process is complex and time-consuming
Solution Approach 1:
The jaw assembly is segmented into separable components (jaw body, clamping component, positioning component) that can be independently replaced. The quick-change assembly allows the jaw to be divided into modular sections that can be quickly swapped without complex disassembly procedures.
Solution Approach 2:
The jaw connection system transitions from a static screw-fixed state to a dynamic quick-change mechanism. The adjustable rod with opposite helical threads enables rapid transformation between locked and unlocked states, allowing the jaw to be quickly changed without manual screwing or wrenches.
2Adaptability or versatility
If the jaw working surface is made flat, then the jaw structure is simple, but it cannot adapt to workpieces with special outlines
Solution Approach 1:
The jaw working surface transitions from a fixed flat configuration to a dynamic adjustable structure. The arc groove and guide body combination allows the jaw to rotate and adjust its angle, enabling adaptation to workpieces with different conicity and outlines while maintaining a relatively simple overall structure.
Solution Approach 2:
The jaw's geometric parameters (specifically the angle of the working surface) can be changed through the arc groove mechanism. This allows the same jaw structure to accommodate different workpiece shapes by adjusting the angle parameter, eliminating the need for multiple specialized jaw designs.
3Ease of manufacture
If the adjustment rod is disassembled inside the jaw, then the jaw assembly is compact, but greasy dirt accumulates in the adjustment rod
Solution Approach 1:
The adjustment rod is extracted from the internal cavity of the jaw assembly and repositioned to an external location. This allows the adjustment rod to be accessed and cleaned from the outside, preventing greasy dirt accumulation while maintaining the compactness of the overall jaw assembly structure.
4Reliability
If the vice bodies are processed with different conicity to match workpieces, then clamping stability is improved, but storage and processing costs increase
Solution Approach 1:
The jaw assembly is designed with universal adaptability through the arc groove and guide body mechanism. A single jaw design can accommodate workpieces with different conicity values by adjusting the jaw's angle, eliminating the need for multiple specialized vice bodies and reducing storage and processing costs.
Solution Approach 2:
Instead of creating multiple vice bodies with different fixed conicity, the system uses a single adjustable jaw where the conicity matching is achieved by changing the jaw's angle parameter. This parameter adjustment allows one vice body to serve multiple functions for different workpiece types.
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
Enhances jaw disassembly efficiency, reduces greasy dirt accumulation, prevents hand injuries, and provides stable clamping for various workpieces with reduced processing costs and improved usability.
Implementation Method 1
The adjustment rod is provided with an external thread and an internal thread. The adjustment rod is installed on the movable vice body through the external thread, and the adjustment rod is connected to one end of the pull rod through the internal thread. The helical direction of the external thread is opposite to the helical direction of the internal thread.
Data Source
AI summary
A multi-functional bench vice with a quick-change jaw includes a movable vice body, a fixed vice body, a screw rod, and a handle. The fixed vice body is provided with a fixed jaw. A quick-change assembly and a movable jaw assembly are installed on the movable vice body. The quick-change assembly includes an adjustment rod and a pull rod. The adjustment rod is installed on the movable vice body through an external thread, and is connected to one end of the pull rod through the internal thread. The helical direction of the external thread is opposite to the helical direction of the internal thread. The other end of the pull rod passes through the movable vice body and is clamped on the movable jaw assembly. The movable jaw assembly corresponds to the fixed jaw.