Clamping Positioning Assembly for Even Pin Engagement
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Solution Overview
Problem
Conventional positioning devices experience uneven pushing of blocking members due to point-to-point contact with balls, leading to instability and inability to smoothly engage with insertion rods.
Innovation Solution
A positioning device featuring a clamping assembly with first and second clamping bodies that are movable between locking and release positions, utilizing a driving rod system with bevel gears to ensure even force application and stable engagement with positioning pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If point-to-point contact with balls is used to move blocking members, then the structure is simple, but the blocking members are unevenly pushed and cannot be smoothly moved
Solution Approach 1:
The blocking member is divided into two separate parts: a moving blocking member that slides along the insertion rod and a stationary blocking member fixed to the guide rod. This segmentation allows each part to perform its function independently, with the moving blocking member being smoothly pushed by the ball while the stationary blocking member provides stable positioning, thereby resolving the contradiction between smooth movement and stable engagement.
Solution Approach 2:
The ball acts as an intermediary element between the guide rod and the moving blocking member. Instead of direct point-to-point contact causing uneven pushing, the ball mediates the force transmission, rolling along the guide rod's inclined surface to smoothly push the moving blocking member along the insertion rod, ensuring both smooth movement and stable engagement.
2Device complexity
If guide rod is axially moved to radially abut balls to move blocking members, then the mechanism is simple, but the blocking members sway and cannot be stably engaged
Solution Approach 1:
The blocking member is segmented into moving and stationary parts. The stationary blocking member is fixed to the guide rod, providing a stable reference point, while the moving blocking member slides along the insertion rod, maintaining stability during movement. This segmentation prevents swaying while keeping the mechanism simple.
Solution Approach 2:
Different parts of the blocking member have different properties: the stationary blocking member is fixed to provide stability, while the moving blocking member is designed to slide smoothly. This local differentiation of quality ensures that each part performs its specific function optimally, preventing swaying while maintaining mechanism simplicity.
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 device achieves stable and even movement of clamping bodies, ensuring smooth and stable engagement with insertion rods, thereby overcoming the instability issues of conventional devices.
Implementation Method 1
the first driving rod including a first thread section and a first bevel gear connected with the first thread section, the second driving rod including a second thread section and a second bevel gear connected with the second thread section, the first clamping body screwed to the first thread section and the second clamping body screwed to the second thread section, each of the at least one rotation rod including a third bevel gear, the third bevel gear meshed with the first bevel gear and the second bevel gear
Implementation Method 2
the first driving rod including a first thread section and a first bevel gear connected with the first thread section, the second driving rod including a second thread section and a second bevel gear connected with the second thread section, the first clamping body screwed to the first thread section and the second clamping body screwed to the second thread section
Data Source
AI summary
A positioning device is provided, including: a base seat, including a plurality through holes and a slide groove; a clamping assembly, disposed within the slide groove, including a first clamping body and a second clamping body; an adjustment assembly, including a first driving rod, a second driving rod and at least one rotation rod, the first driving rod including a first thread section and a first bevel gear, the second driving rod including a second thread section and a second bevel gear, the first clamping body and the second clamping body are respectively screwed on the first thread section and the second thread section, each rotation rod including a third bevel gear, the third bevel gear respectively meshed with the first bevel gear and the second bevel gear.