Clamping Chuck Pushing Structure for Quiet Platform Release

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Solution Overview

Problem

Conventional clamping mechanisms generate noise when separating a working platform from a chuck, which is undesirable in machining processes, and require additional ejector power for smooth separation.

Innovation Solution

A pushing structure where a clamping shaft is inserted into a chuck with a piston seat and a projection on the base is used to apply a pushing force to the clamping shaft, allowing the working platform to separate smoothly from the chuck without noise, utilizing the elastic members to lift the piston seat and move the clamping members outwardly, eliminating the need for additional ejector power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the working platform and chuck are clamped together with completely adhering end surfaces to form a vacuum fitting state, then the clamping stability is improved, but noise is generated when separating the working platform from the chuck

Engineering Contradiction:
Improveclamping stabilityVSAvoidseparation noise
Core Design Contradiction:
Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The projection on the base performs preliminary action by applying an upward pushing force to the clamping shaft before the vacuum fitting state is completely established. This preliminary action creates a small gap between the working platform and chuck, preventing complete adhesion and thus avoiding the noise generated during separation while still maintaining sufficient clamping stability.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If additional ejector power is used to push the working platform away from the chuck, then the separation smoothness is improved, but the device complexity and production cost increase

Engineering Contradiction:
Improveseparation smoothnessVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The projection on the base provides self-service functionality by automatically applying an upward pushing force to the clamping shaft during the clamping process. This eliminates the need for separate ejector mechanisms, achieving smooth separation without additional device complexity or production cost.

Inventive Principle:
Principle #25Self-service

3Force

If the clamping shaft is completely adhered to the chuck end surface, then the clamping force is improved, but the separation process generates noise and requires additional power

Engineering Contradiction:
Improveclamping forceVSAvoidseparation noise
Core Design Contradiction:
ForceVSObject-generated harmful factors

Solution Approach 1:

The projection on the base creates local quality change by applying a focused upward pushing force to the clamping shaft at a specific location. This localized action creates a small gap that prevents complete adhesion, reducing separation noise while maintaining sufficient overall clamping force through the distributed clamping members.

Inventive Principle:
Principle #3Local quality

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 enables smooth and noise-free separation of the working platform from the chuck, reducing production costs by simplifying the structure and eliminating the need for additional power, thus enhancing the machining process precision and safety.

Implementation Method 1

plural elastic members disposed around the piston seat for driving the piston seat up and down to release and clamp the clamping shaft (11) respectively

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11007612B2Pushing structure of clamping mechanism
Publication Date: 2021.05.18 CHUANG HSU PIN
  • US11007612B2 patent drawing
  • US11007612B2 patent drawing
  • US11007612B2 patent drawing

AI summary

A pushing structure of a clamping mechanism is disclosed which comprises a working platform and a chuck. The working platform has a clamping shaft inserted in the chuck, and the chuck has a piston seat and a movable seat at a center of the piston seat for an insertion of the clamping shaft. The chuck further comprises a base at a bottom of the piston seat corresponding to the movable seat and a projection at a bottom of the base. The projection provides an upward push force to the working platform when the piston seat is lifted to release the clamping shaft of the working platform.