Tractor Unit Mounting Mechanism with Adjustable Cam Clamping
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Solution Overview
Problem
Conventional welding systems face issues with the quality of welds due to improper mounting of tractor units on guide tracks, misalignment of travel drive gears, and limited flexibility in torch lead/lag angle adjustments, leading to poor weld quality, increased physical effort during mounting, and potential damage to components.
Innovation Solution
A mounting mechanism with a fixed block and movable plate, adjustable clamping assembly, and cam spring system for secure engagement of tractor units on guide tracks, along with a pivoting lead/lag torch angle mechanism for improved alignment and stability, and an adjustable fillet angle mechanism for enhanced arc control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tractor unit is manually mounted on the guide track by physically jogging and adjusting rollers, then the mounting can be completed, but the process becomes physically exhausting and time-consuming
Solution Approach 1:
The patent employs a motorized actuator system that provides automated counterbalancing force to counteract the weight of the tractor unit during mounting operations. The actuator mechanically assists in lifting and positioning the heavy tractor unit onto the guide track, eliminating the need for operators to manually fight gravity and physically jog the unit into position.
Solution Approach 2:
The patent replaces the manual mechanical mounting process with an automated electro-mechanical system. Instead of operators manually adjusting rollers and jogging the tractor unit, the system uses motorized actuators with control systems to automatically position and secure the tractor unit onto the guide track, reducing both physical effort and mounting time.
2Reliability
If the tractor unit is firmly clamped to the guide track, then the welding quality improves by preventing flexing and crabbing, but the mounting mechanism becomes more complex and harder to operate
Solution Approach 1:
The patent employs a dynamic clamping system where the actuator can adjust the clamping force applied to the guide track. The system transitions from an unclamped state during mounting to a firmly clamped state during welding operations. This dynamic adjustment allows the mechanism to provide strong, reliable clamping force when needed while remaining simple and easy to operate during the mounting process.
3Reliability
If the travel speed of the tractor unit is reduced to prevent gear jamming, then misalignment problems are reduced, but the productivity of the welding process decreases
Solution Approach 1:
The patent implements preliminary alignment actions through the automated actuator system before the welding process begins. The actuator precisely positions the tractor unit and engages the travel drive gear with the track gear in the correct alignment before operation starts. This preliminary positioning ensures proper gear meshing from the outset, allowing the system to operate at optimal speeds without experiencing misalignment or jamming during welding.
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 solution ensures smooth and precise movement of the tractor unit along the guide track, reduces physical effort during mounting, and improves weld quality by providing greater flexibility in torch angle adjustments, leading to more consistent and durable welds.
Implementation Method 1
a cam spring between the fixed block and movable plate for biasing the movable plate away from the fixed block
Data Source
AI summary
A mounting mechanism for connecting a tractor unit to a guide track, the mounting mechanism includes a fixed block having a first set of rolling devices and a movable plate having a second set of rolling devices. The distance between the first and second sets of rolling devices is adjustable by moving the movable plate to engage or disengage the tractor unit to the guide track. A clamping assembly is provided with a shaft, cam spring, and cam handle for adjusting the distance between the first and second rolling devices. When the cam handle is in an open position, the distance between the rolling devices is greater than the width of the guide track and when the cam handle is in a closed position the distance between the rolling devices is approximately equal to the width of the guide track.