Air Pump Assembly Reducing Manufacturing Costs for Power Chucks
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Solution Overview
Problem
Conventional air pump assemblies for power chucks have high manufacturing and mounting costs due to the large volume and expense of metal components, and the complexity of mounting the air injection ring and its associated bracket.
Innovation Solution
An air pump assembly comprising two air jet devices with nozzles and valves is securely mounted on a frame, allowing air to be blown into the power chuck to move its jaws, reducing manufacturing and mounting costs through simpler and less expensive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal air injection ring is used to surround the power chuck, then the airtight seal and structural strength are improved, but the manufacturing cost and volume are increased
Solution Approach 1:
The patent replaces the expensive metal air injection ring with a disposable rubber air injection ring that has a smaller volume and lower manufacturing cost, while still providing the necessary airtight seal function for moving the power chuck jaws
Solution Approach 2:
The patent uses a flexible rubber air injection ring instead of a rigid metal structure, allowing the ring to conform to the power chuck surface and provide effective sealing with reduced material volume and cost
2Stability of the object's composition
If a mounting bracket is used to secure the air injection ring, then the structural stability is improved, but the mounting complexity and time consumption are increased
Solution Approach 1:
The patent removes the mounting bracket component entirely from the system, allowing the air injection ring to be directly mounted onto the power chuck, thereby eliminating the additional mounting steps and reducing assembly time while maintaining structural stability
Solution Approach 2:
The patent combines the air injection ring mounting function directly with the power chuck body, eliminating the separate mounting bracket and simplifying the overall structure to reduce assembly complexity and time
3Reliability
If a large volume rubber seal is used in the air injection ring, then the airtight seal is improved, but the molding cost is increased
Solution Approach 1:
The patent employs a thin-film flexible rubber air injection ring that provides effective sealing through its material properties rather than volume, significantly reducing the amount of rubber material needed and lowering molding costs while maintaining airtight performance
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 air pump assembly significantly reduces manufacturing and mounting costs while maintaining an effective airtight seal and efficient operation, with lower labor and time consumption for assembly.
Implementation Method 1
the air injection ring can blow air into the power chuck via the chuck opening to move jaws of the power chuck
Data Source
AI summary
An air pump assembly for a power chuck has a frame and two air jet devices. The air jet devices are securely mounted on the frame. Each air jet device has a nozzle and a valve. The nozzle has a main body, a pin and a cap. The pin is mounted in the main body. The cap is mounted around a distal end of the main body and surrounds the pin. The valve may be mounted on a power chuck, faces and aligns with the pin, and has a chunk, a ball and a ball spring. With the air jet devices, the air pump assembly can blow air into a power chuck such that jaws of the power chuck are driven to move.