Automobile Calibration Clamp With Magnetic Spring Locking
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Solution Overview
Problem
Current automobile calibration devices face issues with insecure and inaccurate installation of calibration apparatuses due to the slipping of C-type snap rings and reliance on a single fulcrum for securing, which can lead to location deviations and damage to appearance components.
Innovation Solution
A clamping apparatus featuring a fixing plate, fixing block, and tension knob with a locking spring piece and magnetic elements, allowing for secure and precise clamping of calibration apparatuses through surface contact and friction, while the magnetic elements absorb the locking spring piece to facilitate easy insertion and secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a C-type snap ring is used for locking, then the calibration apparatus can be secured, but the snap ring may slip and is inconvenient to assemble due to small gap
Solution Approach 1:
The patent replaces the traditional C-type snap ring mechanical locking system with a magnetic locking system. The magnetic element generates magnetic force to attract and secure the calibration apparatus, eliminating the need for mechanical snap rings that slip or require precise gap alignment. This substitution maintains secure locking while dramatically improving assembly convenience.
Solution Approach 2:
The patent changes the locking mechanism from mechanical (snap ring) to magnetic field-based. By utilizing magnetic field strength as the securing parameter instead of mechanical interference fit, the system achieves reliable locking without the assembly difficulties associated with precise mechanical gap control.
2Reliability
If a single screw is used for securing, then the calibration apparatus can be fixed, but there is only one fulcrum which easily leads to location deviation
Solution Approach 1:
The patent divides the single-point screw securing into a distributed magnetic field system. The magnetic element creates multiple attraction points across the calibration apparatus surface, effectively segmenting the securing force. This distribution of securing points eliminates location deviation by providing multiple fulcrums instead of a single fulcrum.
3Force
If a screw is used for securing, then the calibration apparatus can be held firmly, but the surface of appearance component is easily damaged
Solution Approach 1:
The patent replaces the mechanical screw pressing system with a magnetic field-based securing system. The magnetic force acts through the calibration apparatus without requiring direct contact pressure on the surface, thereby maintaining firm securing force while eliminating surface damage to appearance components.
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 provides a firm and accurate installation of calibration apparatuses, reducing assembly errors and protecting appearance components by increasing friction and using magnetic absorption to enhance the clamping mechanism's stability and ease of use.
Implementation Method 1
a magnetic element, which is installed on the fixing block body. The magnetic element is located in the receiving cavity, and is configured to absorb the locking spring piece
Implementation Method 2
The tension knob is capable of rotating relative to the fixing block body, to extend inside the receiving cavity and to abut against the locking spring piece
Data Source
AI summary
The present invention relates to the field of automobile maintenance and device calibration technologies, and discloses a clamping apparatus and an automobile calibration device. The clamping apparatus includes a fixing plate, a fixing block and a tension knob. The fixing block includes a fixing block body and a locking spring piece. The fixing block body is installed on the fixing plate. A receiving cavity is enclosed by the fixing block body and the fixing plate. The locking spring piece is located in the receiving cavity. The tension knob is installed on the fixing block body. The tension knob is capable of rotating relative to the fixing block body, to extend inside the receiving cavity and to abut against the locking spring piece. When a to-be clamped and calibrated apparatus is inserted in the receiving cavity, the tension knob may push the locking spring piece to abut against the to-be clamped and calibrated apparatus. Because the locking spring piece is in surface contact with the to-be clamped and calibrated apparatus, a friction between the locking spring piece and the to-be clamped and calibrated apparatus increases, so that the locking spring piece may firmly abut against the to-be clamped and calibrated apparatus.