Machining Center Pallet Transfer Layout for a Smaller Footprint

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Solution Overview

Problem

Conventional machining centers require significant space due to the design of the pallet holder, which complicates the process of transferring workpiece pallets between machining and loading zones.

Innovation Solution

A machining center design featuring a machine bed with a sliding unit, a first driving unit, a conveying member, a second driving unit, and a loading seat, allowing for linear motion and vertical adjustment to efficiently transfer workpiece pallets through a gate between machining and transferring zones, with a sensor system to manage deformation and ensure proper engagement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a pallet holder with rotation capability is used to transfer workpiece pallets, then the workpiece pallets can be exchanged between machining and loading zones, but the machine occupies significant space

Engineering Contradiction:
Improvepallet exchange capabilityVSAvoidmachine footprint
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The pallet transfer function is segmented into two independent linear movements: horizontal translation by the conveying member and vertical adjustment by the lifting device. This replaces the single rotational movement of the pallet holder, allowing compact arrangement of components and reducing the overall machine footprint while maintaining pallet exchange capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a single-degree-of-freedom rotational system to a two-degree-of-freedom system with movements in different dimensions (horizontal and vertical). This dimensional separation allows the machine components to be arranged more compactly in the horizontal plane, reducing the machine footprint while achieving the same pallet exchange function

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If a pallet holder with rotation mechanism is installed, then workpiece pallets can be transferred between zones, but the device complexity increases

Engineering Contradiction:
Improvepallet transfer functionVSAvoidpallet holder structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The complex rotational pallet holder is segmented into simpler independent components: a conveying member for horizontal movement and a lifting device for vertical movement. Each component has a single function and simple structure, eliminating the need for complex rotation mechanisms while achieving the same pallet transfer capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The conveying member and lifting device are designed as multi-functional components that can handle different workpiece pallets and perform both transfer and positioning functions. This universal design approach simplifies the overall system by eliminating specialized rotation mechanisms while maintaining versatile pallet transfer capability

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

Data Source

PatentEP3650169B1Machining center
Publication Date: 2021.03.31 BUFFALO MACHINERY
  • EP3650169B1 patent drawingFigure 1
  • EP3650169B1 patent drawingFigure 2
  • EP3650169B1 patent drawingFigure 3

AI summary

A machining center includes a machine bed (10), a work table unit (20), a sliding unit (40), a first driving unit (50), a conveying member (60), a second driving unit (70) and a loading seat (80). The machine bed (10) has a machining zone (13) and a transferring zone (14). The first driving unit (50) is operable for driving the conveying member (60) to move along a conveying axis which extends in a first direction (Y), thereby driving the loading seat (80) to move along first adjusting axes which extend in the first direction (Y) between the transferring and machining zones (14, 13). The second driving unit (70) is operable for driving the loading seat (80) to move along second adjusting axes which extend in a second direction (Z), which is perpendicular to the first direction (Y) and which is substantially vertical.