Continuous Shot Peening Coil Spring Rotation Revolution

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Solution Overview

Problem

Conventional shot peening processes for coil springs require complex apparatuses and large workspaces, making it difficult to efficiently process multiple coil springs simultaneously and uniformly.

Innovation Solution

A continuous shot peening apparatus that simultaneously rotates and revolves the coil spring, using a mounting system with symmetrically arranged housings and driving units to perform shot peening, allowing for a simpler configuration and smaller workspace, enabling efficient processing of multiple coil springs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional shot peening apparatus with clamping means and conveyer is used, then coil spring can be held and moved, but apparatus complexity increases and workspace expands

Engineering Contradiction:
Improvecoil spring handlingVSAvoidapparatus configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention extracts and eliminates the clamping means and conveyer components from the conventional shot peening apparatus. Instead of using separate clamping and conveying mechanisms, the coil spring is directly mounted on the rotating and revolving mounting unit, which performs both positioning and movement functions through its rotational and revolute motions alone.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The mounting unit is designed to perform multiple functions simultaneously: it holds the coil spring, rotates it for uniform shot peening, revolves it for continuous processing, and positions it for optimal shot impact. This multi-functional design replaces the need for separate clamping means and conveyer apparatus, thereby reducing overall device complexity while maintaining ease of operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If conventional conveyer apparatus is used to move coil spring, then coil spring can be transported, but processing time increases and productivity decreases

Engineering Contradiction:
Improvecoil spring transportVSAvoidprocessing speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The invention transitions from static conveyer-based transport to dynamic rotational and revolute motion. The mounting unit continuously rotates and revolves during the shot peening process, enabling the coil spring to be processed in a dynamic state rather than being passively transported and then processed. This dynamic approach allows for continuous shot peening operation without interruption.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mounting unit enables continuous shot peening operation by maintaining constant rotational and revolute motion throughout the processing cycle. Unlike conventional conveyer systems that require discrete loading, unloading, and processing steps, the continuous motion of the mounting unit allows the shot peening process to proceed without interruption, significantly improving productivity and reducing total processing time.

Inventive Principle:
Principle #20Continuity of useful action

3Device complexity

If coil spring is stationary during shot peening, then processing is simple, but shot peening uniformity deteriorates

Engineering Contradiction:
Improveprocessing mechanismVSAvoidshot peening uniformity
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The invention applies dynamic rotation and revolution to the coil spring mounting unit during shot peening. The rotational motion ensures uniform distribution of shot impacts around the coil spring circumference, while the revolute motion provides continuous exposure to shot particles from multiple directions. This dynamic approach achieves highly uniform shot peening results without requiring overly complex processing mechanisms.

Inventive Principle:
Principle #15Dynamics

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 apparatus allows for uniform shot peening of coil springs, improving fatigue life and corrosion resistance while reducing the complexity and space requirements of the processing setup, enabling rapid processing of multiple springs.

Implementation Method 1

In the shot peening step, a small ball, such as a bead, made of steel, is shot and collided with the surface of the material, so as to improve mechanical properties of the material and enhance fatigue life of the material.

Methodology Applied
Scientific EffectShot peening: Shot Peening

Implementation Method 2

a driving unit (200) disposed in the housing (C) to rotate and revolve the holding unit (100), wherein the holding unit (100) holds the coil spring (CS)

Methodology Applied
Scientific EffectRotation:

Implementation Method 3

a driving unit (200) disposed in the housing (C) to rotate and revolve the holding unit (100)

Methodology Applied
Scientific EffectRevolution:

Data Source

PatentEP3278926B1Continuous shot peening apparatus and method for coil spring
Publication Date: 2019.08.14 DAEWON APPLIED ENG CO
  • EP3278926B1 patent drawingFigure 1
  • EP3278926B1 patent drawingFigure 2
  • EP3278926B1 patent drawingFigure 3

AI summary

The present invention relates to an apparatus and a method for shot peening a coil spring, and to a continuous shot peening apparatus and method for a coil spring, in which a coil spring revolves and rotates at the same time during shot peening processing to enable more uniform processing of the coil spring, and a shot peening process and a preparing process thereof are simultaneously performed through simultaneous rotation of a housing in a processing position and a housing in a preparation position, so that the inventive apparatus and method require a simpler configuration and a smaller work space for a shot peening process than those of the prior arts and can perform shot peening of many coil springs in a short period of time.