Welding Gun Lockable Rotation Mechanism
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Solution Overview
Problem
Existing welding guns with rotation mechanisms are cumbersome, require disengagement and re-engagement for orientation changes, and lack convenient locking and release features, leading to musculoskeletal issues for welders due to their bulkiness and awkward handling.
Innovation Solution
A welding gun with a lockable rotation mechanism that includes an elongated body, a neck assembly, and a handle, featuring a rotation mechanism with circumferentially distributed engaging elements on the inner and outer structures for locking into discrete angular positions, allowing for ergonomic adjustment without disengagement, and a hinge mechanism for additional angular positioning of the handle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotation mechanism is added to allow angular positioning, then ergonomic handling is improved, but device complexity increases
Solution Approach 1:
The rotation mechanism allows the elongated body to be dynamically repositioned into different angular orientations relative to the handle, transforming a static structure into a dynamically adjustable one. This enables the welding gun to adapt to various welding positions while maintaining ergonomic handling.
Solution Approach 2:
The rotation mechanism is segmented into discrete angular positions defined by engaging elements and recesses, allowing the elongated body to lock at specific predetermined angles. This segmentation provides ergonomic benefits while controlling complexity through standardized positioning increments.
2Device complexity
If disengagement and re-engagement is required to change orientation, then structural simplicity is maintained, but productivity decreases
Solution Approach 1:
The mechanism transitions from a static connected structure to a dynamically adjustable one, where the elongated body can be rotated and locked at different angles without complete disengagement. This improves productivity by allowing quick orientation changes during welding operations.
Solution Approach 2:
The engaging elements and recesses are pre-positioned to define specific angular orientations before use. This preliminary arrangement allows the operator to quickly snap the elongated body into the desired angle without complex adjustment procedures, improving operational efficiency.
3Device complexity
If no locking mechanism is provided, then device simplicity is maintained, but reliability of angular positioning deteriorates
Solution Approach 1:
The locking mechanism provides a dynamic yet stable solution, allowing the elongated body to be positioned at different angles and then securely locked in place. This ensures reliable angular positioning while maintaining reasonable structural simplicity through the use of basic locking elements.
Solution Approach 2:
The locking mechanism uses simple, inexpensive engaging elements and recesses that provide reliable positioning without complex components. These basic mechanical elements achieve the desired reliability through straightforward geometric engagement rather than sophisticated locking systems.
4Adaptability or versatility
If the welding gun is bulky to accommodate all components, then functional completeness is improved, but ease of operation deteriorates
Solution Approach 1:
The rotation mechanism adds dynamic positioning capability to the welding gun, allowing the elongated body to be oriented in multiple directions. This improves functional versatility by enabling access to different welding positions while the compact design maintains maneuverability in tight spaces.
Data Source
AI summary
A welding gun is provided that includes an elongated body having a longitudinal axis, a neck assembly connectable to the elongated body, and a handle including a sleeve portion mounted around and longitudinally fixed relative to the elongated body, and a grasping portion extending lengthwise radially outwardly from the sleeve portion. The welding gun also includes a rotation mechanism including an inner structure fixedly provided along an outer periphery of the elongated body and having a number of circumferentially distributed engaging elements, and an outer structure fixedly provided along an inner periphery of the sleeve portion and having a number of circumferentially distributed engaging elements. The engaging elements of the outer structure cooperate with the engaging elements of the inner structure for releasably locking the elongated body into a plurality of discrete angular positions relative to the sleeve portion about the longitudinal axis.