Denture Test Apparatus With Damped Clamping for Dual Testing
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Solution Overview
Problem
Traditional denture test apparatuses lack stability during clamping, leading to inaccurate tests and inefficient testing of tensile strength, requiring multiple devices and steps for different tests.
Innovation Solution
A test apparatus with a carrying mechanism, internal support mechanism, stop mechanism, drive mechanism, and transmit mechanism, utilizing a threaded shaft and damping bearing to stabilize the denture during testing, allowing simultaneous testing of tensile and hardness without repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional two pressing plates clamping method is used, then the structure is simple, but the clamping stability is poor causing shaking during test
Solution Approach 1:
The clamping structure is divided into multiple independent components: first and second pressing plates for vertical clamping, and first and second clamping plates for horizontal clamping. This segmentation allows each component to perform a specific clamping function, improving overall stability without requiring a single complex clamping mechanism.
Solution Approach 2:
The clamping mechanism uses a nested structure where the first pressing plate and first clamping plate work together, and the second pressing plate and second clamping plate work together. The pressing plates and clamping plates are positioned to create a nested clamping action that stabilizes the denture from multiple directions simultaneously.
2Productivity
If separate devices are used for hardness test and tensile strength test, then each test can be performed independently, but the testing efficiency is low requiring moving and repositioning
Solution Approach 1:
The apparatus combines both hardness testing and tensile strength testing functions into a single integrated device. The pressing mechanism can perform hardness testing by pressing down on the denture, and the same clamped denture can then undergo tensile strength testing by pulling the clamping plates in opposite directions, eliminating the need to move the denture between separate devices.
Solution Approach 2:
The clamping mechanism serves multiple functions: it holds the denture stable during hardness testing, provides gripping force for tensile strength testing, and maintains positioning throughout both test types. This multi-functionality allows continuous testing without repositioning, improving productivity.
3Reliability
If the denture is moved to tensile strength test device, then the tensile strength can be tested, but the operation steps increase and test efficiency decreases
Solution Approach 1:
The denture is clamped and positioned in the apparatus before testing begins. The clamping action is established in advance to ensure the denture is securely held for both hardness and tensile strength testing. This preliminary clamping action eliminates the need for repositioning or re-clamping between test types, reducing testing time while maintaining accuracy.
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
Enhances test accuracy and efficiency by stabilizing the denture during testing, reducing operation steps, and enabling simultaneous testing of tensile and hardness without repositioning, ensuring reliable durability evaluation.
Implementation Method 1
the threaded shaft is connected to the main shaft through a damping bearing
Data Source
AI summary
Disclosed is a test apparatus for denture processing, including a carrying mechanism provided on a placement surface, a hardness test mechanism, an internal support mechanism, a stop mechanism, a drive mechanism and a transmit mechanism. The internal support mechanism is configured to clamp a to-be-test denture and includes a threaded shaft (2), an internal support member and a main shaft (1). The internal support member is slidably connected to the carrying mechanism along a first direction and is at least partially provided in the carrying mechanism. The threaded shaft (2) is provided with two thread portions with opposite rotation directions, the thread portions and the internal support members are in a one-to-one correspondence, part of the internal support member provided in the carrying mechanism is threaded with the thread portion, and the threaded shaft (2) is connected to the main shaft (1) through a damping bearing (3).