Exothermic Mold Handle Clamp With Spring Connectors and Detent Alignment
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Solution Overview
Problem
Exothermic welding molds require frequent replacement, leading to high costs, and existing handle clamps for adjusting mold configurations are cumbersome and prone to misalignment, especially when molds are hot and have complex designs.
Innovation Solution
A handle clamp with removably fixed mounting brackets and a detent mechanism that allows for easy adjustment to accommodate different mold configurations, along with spring-driven bolts for secure engagement with stabilizer holes, simplifies the process of assembling and disassembling molds without manual alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single shot mold is used, then the mold can be removed from welded conductors by breaking it away, but the cost increases since a new mold is required each time a weld is made
Solution Approach 1:
The mold is divided into separable sections that can be detached from the handle clamp after welding. This segmentation allows the mold sections to be reused multiple times, reducing the quantity of molds needed and lowering costs while maintaining ease of removal through the separable design.
2Quantity of substance
If a reusable mold with separable sections is used, then the mold sections can be removed intact and reused, but the handle clamp becomes cumbersome and prone to misalignment when adjusting to different mold configurations
Solution Approach 1:
The mounting brackets are made rotatable on the rods, allowing dynamic adjustment to different angular positions. This enables the handle clamp to adapt to various mold configurations without requiring complex manual alignment, improving ease of operation while maintaining mold reusability.
Solution Approach 2:
The detent mechanism with spring-loaded bolts provides automatic engagement and alignment when the mounting brackets are rotated into position. The spring force ensures positive engagement with the rods, eliminating the need for manual alignment and reducing operator burden while maintaining precise positioning.
3Adaptability or versatility
If mounting brackets are made rotatable to accommodate different mold designs, then adaptability improves, but misalignment and interference with rod insertion occur
Solution Approach 1:
The detent mechanism is pre-configured with spring-loaded bolts that automatically engage with the rods when the mounting brackets are rotated into the correct position. This preliminary positioning action ensures reliable alignment before the welding process begins, preventing misalignment and interference issues.
Solution Approach 2:
The spring mechanism provides tactile and mechanical feedback when the mounting bracket reaches the correct angular position, as the spring compresses and the detent engages with the rod. This feedback ensures proper alignment is achieved, maintaining reliability while allowing adaptability to different mold configurations.
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 handle clamp enables efficient and secure assembly and disassembly of molds, reducing the need for frequent replacements and improving user safety by ensuring proper alignment and secure engagement, thus enhancing the usability and cost-effectiveness of exothermic welding processes.
Implementation Method 1
A spring-driven connector is disposed on each rod. The spring-driven connector is adapted to engage with a stabilizer hole in the mold section to prevent the mold section from disengaging from the handle.
Implementation Method 2
Exothermic welding uses a powdered reaction mixture held in the reaction chamber of a mold. When the mixture is ignited it produces a molten metal. Such reactions can reach temperatures in excess of 4000° F.
Implementation Method 3
Molds are typically made of refractory materials, such as ceramic or graphite, that can withstand these temperatures.
Data Source
AI summary
Disclosed is a handle clamp for an exothermic mold. The clamp includes a pair of legs, each having a plurality of rods that are shaped to fit into engagement holes on sections of the mold. The rods of each leg engage with one section of the mold. Engagement brackets are rotatably disposed on one or more or the rods. The brackets each have a thumb bolt that can be extended toward a mold section connected with the clamp. When engaged with the mold section, the thumb bolt stabilizes the mold section on the handle. A detent mechanism is provided between the bracket and the leg of the handle. The detent mechanism releaseably holds the bracket in one of a selected plurality of rotational positions with respect to the rod. By selecting different rotational positions for the brackets, the handle can be configured to engage with different configurations of mold. The thumb bolts that are biased toward the mold section by a spring. The bolts include a key that can be aligned or misaligned with a key slot on the bracket. By aligning the key with the key with the key slot, the bolt can be moved toward or away from the mold section under the biasing force of the spring. By misaligning the key and key slot, the bolt can be locked into engagement with the mold section or else held in a disengaged position.