Rotating Welding Clamp Base for Precise Table Positioning
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Solution Overview
Problem
Existing welding clamps face challenges in securely attaching to welding tables of varying thickness and in providing precise positioning and adjustment for workpieces of different sizes and shapes, often requiring complex expansion mechanisms that are prone to malfunction.
Innovation Solution
A welding clamp with a position shifting base that utilizes a simplified thread-and-nut design, featuring a cylindrical stud and hex-head screw, allowing for easy adjustment and secure attachment to welding tables of different thicknesses, with the ability to rotate freely and adjust to various angles without range limitations or speed impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex expansion mechanism is used to securely attach the clamp to the welding table, then the attachment reliability is improved, but the device complexity increases and the risk of malfunction increases
Solution Approach 1:
The patent extracts and removes the complex expansion mechanism from the clamp design, replacing it with a simple threaded stud and nut system. The cylindrical stud with external threads directly engages with a matching threaded hole in the welding table, eliminating the need for expansion wedges, conical surfaces, or multi-component locking mechanisms. This extraction of unnecessary complexity while maintaining secure attachment capability directly resolves the contradiction between reliability and device complexity.
2Ease of manufacture
If a fixed-position clamp base is used, then the manufacturing simplicity is improved, but the adaptability to welding tables of varying thickness and workpiece positioning needs deteriorates
Solution Approach 1:
The patent introduces a rotating base that can freely rotate 360 degrees around the vertical cylindrical stud axis, transforming the fixed-position clamp into a dynamic, adjustable system. The base holder includes a cylindrical hole that accommodates the stud, allowing rotational movement while maintaining secure attachment. This dynamic capability enables the clamp to adapt to welding tables of varying thicknesses and positions different workpieces at various angles, greatly enhancing positioning adaptability without complicating the manufacturing process.
3Device complexity
If the clamp position is fixed relative to the base, then the structural simplicity is improved, but the positioning precision for different workpiece locations deteriorates
Solution Approach 1:
The rotating base mechanism allows the clamp arm to be positioned at any angular orientation around the welding table hole, providing precise positioning capability for different workpiece locations. The base holder's cylindrical hole accommodates the vertical stud, enabling smooth rotation and angular adjustment. This dynamic positioning capability achieves high positioning precision while maintaining relatively simple structural design, as the rotation mechanism consists of basic cylindrical geometries without complex joints or actuators.
Data Source
AI summary
The present invention has a block with a cylindrical stud and a cylindrical hole. A hex-head screw has a screw head portion, a middle portion and a threaded portion. The threaded portion of the hex-head screw can be fitted to the base of a clamp through the cylindrical hole, so that the clamp can freely rotate, using the cylindrical stud as a pivoting point, and the clamp's location on a welding table can be shifted to provide a proper location on the surface of a workpiece. The cylindrical stud has an overall length sufficient to extend through the thickness of a welding table opening, where a matching lock nut can be easily used to screw on to threaded portion of the stud, thus tightening the clamp in place. When the clamp handle is engaged, the cylindrical stud, even if the lock nut is not used, binds to a welding table opening, but when the clamp handle is disengaged, the clamp can rotate as the cylindrical stud rotates in the welding table opening without angle limitation.