T-Slot Mounting Clearance for Workpiece Misalignment Compensation
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Solution Overview
Problem
Existing T-slot mounting systems in machine tools and workpiece positioners can lead to rigid mounting, causing misalignment and potential damage due to inaccurately machined workpieces or fixtures, resulting in unsafe conditions and machine failures.
Innovation Solution
A T-slot mounting system comprising a T-dog, dog nut, and bolts that allow for non-rigid mounting by providing clearance between the dog nut and the T-slot's internal shoulder surface, enabling the workpiece or fixture to tilt and compensate for misalignments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid mounting system is used to securely attach the workpiece or fixture to the table, then the mounting stability is improved, but misalignment stresses may separate the workpiece or fixture from the table or damage the machine, leading to unsafe conditions and machine failure
Solution Approach 1:
The mounting system transitions from a rigid static connection to a dynamic adjustable connection. The T-block includes adjustment mechanisms that allow the mounting configuration to be modified during operation, enabling the system to adapt to misalignments and prevent damaging stresses while maintaining secure attachment.
Solution Approach 2:
The system allows changes in mounting parameters such as position, orientation, and clamping force. By adjusting these parameters, the workpiece or fixture can be precisely located and secured without creating excessive stresses from misalignment, thus maintaining both stability and safety.
2Manufacturing precision
If precise machining of the workpiece or fixture is performed to ensure proper alignment, then the mounting precision is improved, but any remaining misalignment can still create damaging stresses in a rigid mounting system
Solution Approach 1:
The mounting system incorporates dynamic adjustment capabilities that allow operators to compensate for residual misalignments after machining. This dynamic adjustment prevents the transmission of damaging stresses to the machine while maintaining the precision achieved through machining.
Solution Approach 2:
The system includes built-in compliance elements and adjustment mechanisms that act as a cushion against misalignment stresses before they can damage the machine. This protective feature is built into the mounting system in advance, preventing harm even when machining precision is not perfect.
3Reliability
If a non-rigid mounting system with clearance is used to allow for misalignment compensation, then the machine safety is improved, but the mounting stability may be reduced
Solution Approach 1:
The system achieves both safety and stability through dynamic adjustment. The mounting components can be adjusted to eliminate play and achieve a stable, rigid connection after initial positioning, while the ability to adjust prevents damaging stresses from misalignment. This creates a stable final mounting that is also safe.
Solution Approach 2:
The mounting system is divided into separate functional components: positioning elements that allow for misalignment compensation and clamping elements that provide secure attachment. This segmentation allows the system to achieve both safety through alignment compensation and stability through secure clamping.
Data Source
AI summary
A T-slot mounting and alignment system for non-rigidly mounting a workpiece or fixture to a work-piece positioner table, welding positioner table or machine tool table having one of more T-slots includes a T-dog, a dog nut, at least one bolt, and at least one fastener. The at least one fastener fastens the T-dog to the workpiece or fixture, and a dog stem of the T-dog extends through a guide slot in the workpiece or fixture and into the T-slot in the table. The dog nut mates with the at least one bolt and tightens to engage a distal end of the dog stem, wherein clearance is provided in the assembled structures to prevent the workpiece or fixture from being tightly clamped against the table. Consequently, compensation for misalignments is possible during setup.