Imagine a manufacturer producing thousands of multi-purpose tools, each containing multiple pivot joints. These joints need to function smoothly, providing the right balance between ease of movement and resistance. But how can they be sure that each tool meets the required torque specifications? Historically, manufacturers relied on post-assembly torque testing, often by "feel" or through separate testing equipment. If a joint was too tight or too loose, parts were scrapped, or costly rework was required. This reactive approach led to inefficiencies, waste, and inconsistent quality.
As customer expectations for precision and durability have increased, manufacturers have had to evolve. Verifying torque specifications during assembly has become a priority, driven by:
Stringent quality requirements
The cost implications of defective products
The push for higher consistency and overall product reliability
From hand tools and surgical instruments to automotive hinges and furniture mechanisms, industries are recognizing the importance of precise pivot joint torque control.
Achieving Precision: The Role of Part Design and Process Alignment
In any pivot joint, torque is directly influenced by the side load and forming force applied to the part, rivet, or tenon. Without careful control, torque values can vary significantly, leading to inconsistent product performance. This is why manufacturers must align part design with the forming process to ensure a controlled and repeatable outcome.
The Old Way: Testing After Assembly
Traditionally, manufacturers would complete the forming process and then test the torque manually or with a machine. If the joint didn’t meet the required torque range, they had two options:
Scrap the part, resulting in wasted materials and higher costs.
Rework the part, often requiring additional labor and slowing down production.
This method not only increased production costs but also left room for variability, as manual testing could be inconsistent and subjective.
The Orbitform Way: Real-Time Torque Verification
Orbitform’s Pivot Joint Testing Equipment changes the game by integrating in-process torque verification directly into the assembly system. Instead of waiting until after assembly to test a joint, this system checks and adjusts for torque within the same equipment as the forming process, ensuring each joint meets specifications before moving to the next step.
How It Works
Forming the joint to an initial height – Based on extensive testing, Orbitform sets an initial forming height designed to bring the joint close to or just below the required torque range.
Measuring torque after the first forming cycle – The in-process torque check evaluates whether the joint meets predefined specifications.
3.Reforming if necessary – If the torque is too low, the machine performs another forming cycle, incrementally creeping into the acceptable range. If the torque is too high (which is rare), the part may be set aside for rework, sometimes using a punch press to relieve tension.
Final verification – Once the torque meets the required specification, the part is released, ensuring quality and consistency in every assembly.
Why In-Process Torque Verification Matters
By integrating torque verification into the forming process, manufacturers can:
Reduce scrap and rework – Catching and correcting torque issues early minimizes waste and lowers production costs.
Ensure product consistency – Every pivot joint meets the required torque range, eliminating variability in assembly.
Improve efficiency – Automation speeds up the process, reducing reliance on manual testing.
The Added Assurance of Calibration and Testing Stations
To further ensure accuracy, Orbitform designs its equipment with precision tooling and calibration, allowing manufacturers to verify torque measurements at implementation and throughout ongoing use. For companies needing an offline verification process, Orbitform also offers dedicated testing stations that:
Provide an independent torque verification step
Analyze trends to refine assembly processes
Ensure compliance with industry quality standards
Gone are the days of relying on post-assembly torque testing and costly rework. With Orbitform’s Pivot Joint Testing Equipment, manufacturers can achieve precise torque specifications in real time, improving efficiency, reducing waste, and ensuring product quality. Whether integrated into an automated system or used as a standalone testing station, Orbitform’s solutions provide confidence in every pivot joint produced.
Want to optimize your pivot joint assembly process? Contact Orbitform today to learn more!