Embedded numerical control rotary table

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Solution Overview

Problem

Numerical control rotary tables with single dimensions are inadequate for handling parts of varying sizes and accuracy requirements, as they cannot efficiently switch between different machining tasks.

Innovation Solution

A nested numerical control rotary table design integrating a large and small rotary table, with a lifting oil cylinder, positioning pins, and guide rails, allowing convenient switching between the two tables to accommodate parts of both large and small dimensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single numerical control rotary table is used, then the device complexity is reduced, but the adaptability to handle parts of varying sizes is insufficient

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies nesting by placing a small rotary table inside the large rotary table structure. The small rotary table can be positioned within the large rotary table's support structure, allowing both tables to coexist in a compact configuration. This enables the system to handle both large and small parts using a single machine tool, thereby improving adaptability without proportionally increasing device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent implements multi-functionality by equipping the machine tool with both a large rotary table and a small rotary table that can be selectively used. The small rotary table serves universal purposes for small parts, while the large rotary table handles larger workpieces. This multi-functional design allows a single device to perform multiple machining tasks that would otherwise require separate machines, improving versatility while maintaining reasonable device complexity.

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

2Adaptability or versatility

If multiple numerical control rotary tables with different dimensions are used, then the adaptability is improved, but the device complexity and space occupation increase

Engineering Contradiction:
ImproveadaptabilityVSAvoidspace occupation
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent applies nesting by placing a small rotary table inside the large rotary table structure. The small rotary table can be positioned within the large rotary table's support structure, allowing both tables to coexist in a compact configuration. This enables the system to handle both large and small parts using a single machine tool, thereby improving adaptability without proportionally increasing device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If multiple numerical control rotary tables with different dimensions are used, then the adaptability is improved, but the loss of time for switching between tables increases

Engineering Contradiction:
ImproveadaptabilityVSAvoidswitching time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-positioning the small rotary table within the large rotary table structure and preparing the switching mechanism in advance. The quick-release positioning pins and clamps are readied for operation, allowing operators to switch between tables by simply actuating the release mechanism rather than performing complex assembly procedures. This reduces switching time and makes the adaptability feature more efficient in practice.

Inventive Principle:
Principle #10Preliminary action

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 nested design enables efficient machining of parts with both large and small dimensions, reducing production costs and improving working efficiency by allowing quick switching between rotary tables.

Implementation Method 1

the lifting oil cylinder lifts the small rotary table along the guide rail through the bracket

Methodology Applied
Scientific EffectHydraulic pressure: Hydraulic Press

Implementation Method 2

the elastic piece is arranged in the positioning pin boss, and the positioning pin head may be inserted into the pin hole in the side surface of the small rotary table board under the push of the elastic piece

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentEP3943234B1Embedded numerical control rotary table
Publication Date: 2022.12.14 KEDE NUMERICAL CONTROL CO LTD
  • EP3943234B1 patent drawingFigure 1~2
  • EP3943234B1 patent drawingFigure 3~4
  • EP3943234B1 patent drawingFigure 5~6

AI summary

The invention provides a nested numerical control rotary table, which comprises a large numerical control rotary table, a small rotary table, a large rotary table board and a small rotary table board nested in the large rotary table board, wherein the small rotary table board may be driven by the large numerical control rotary table as a part of the large rotary table board to run together with the large rotary table board, or be driven by the small rotary table to run independently. When the small rotary table board runs independently, the small rotary table is driven to ascend by a lifting oil cylinder, and a pull pin under the small rotary table board and a positioning pin on the small rotary table fixedly connect the small rotary table board with the small rotary table, which are locked by a clamp. The nested numerical control rotary table may complete the tasks of numerical control rotary tables with both large and small dimensions, which saves the production cost and improves the working efficiency. Moreover, switch between the large rotary table and the small rotary table is convenient, so time is saved.