Machine Tool Unloading Station With Workpiece Switch and Conveyor

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Solution Overview

Problem

Existing processing machines for cutting tubular or rod-shaped workpieces face inefficiencies in productivity due to manual handling and limited storage capacity in unloading stations, which hinder the swift and efficient removal of processed workpieces.

Innovation Solution

An unloading station equipped with a longitudinal conveyor and a workpiece switch, such as a movable stop bar or pivotable flap, allows for automatic transfer of processed workpieces onto the conveyor, enhancing storage capacity and enabling quick removal, with adjustable features to accommodate varying workpiece lengths and diameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If workpieces are manually removed from the workpiece support, then the structure remains simple, but productivity decreases due to manual handling time

Engineering Contradiction:
ImproveproductivityVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system enables automatic self-service unloading where the longitudinal conveyor automatically transports workpieces from the unloading device to the handling device, eliminating the need for manual removal and significantly improving productivity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical handling with an automated conveyor system consisting of a longitudinal conveyor and handling device that automatically transfer workpieces, reducing labor intervention and increasing production speed

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Quantity of substance

If workpiece support is located directly at the unloading device, then rapid removal is enabled, but storage capacity is limited

Engineering Contradiction:
Improvestorage capacityVSAvoidremoval time
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The patent introduces a longitudinal conveyor that extends the workpiece transport path in the longitudinal dimension, allowing multiple workpieces to be stored and transported sequentially, thereby increasing storage capacity without compromising rapid removal capability

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

Solution Approach 2:

The longitudinal conveyor acts as an intermediary between the unloading device and the handling device, providing a buffer zone that can hold multiple workpieces simultaneously, thus increasing storage capacity while maintaining efficient transfer rates

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If workpieces are transferred directly to workpiece support, then handling is simple, but damage and noise increase

Engineering Contradiction:
Improvedamage and noiseVSAvoiddevice complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The longitudinal conveyor serves as an intermediary transport mechanism that gently conveys workpieces away from the unloading device, reducing impact and noise compared to direct transfer to workpiece support

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system provides beforehand cushioning by using the longitudinal conveyor to gradually decelerate and position workpieces before final placement, minimizing impact damage and noise generation during the transfer process

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentEP4247586B1Unloading station for a machine tool, and machine tool for cutting tubular or rod-shaped workpieces
Publication Date: 2025.01.01 TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
  • EP4247586B1 patent drawingFigure 1
  • EP4247586B1 patent drawingFigure 2
  • EP4247586B1 patent drawingFigure 3

AI summary

The invention relates to an unloading station for a machining station (12) and to a machine tool (11) for cutting tubular or rod-shaped workpieces (13), the unloading station comprising an unloading device (26), which receives workpieces (13) led out of a machining station (12), and at least one workpiece support (29), into which the at least one workpiece (13) can be transferred from the unloading device (26), wherein an ejection device (28) for selectively ejecting workpieces (13) from the unloading device (26) is provided, which ejection device comprises a longitudinal conveying device (31) extending at least between the unloading device (26) and the workpiece support (29) and comprises a workpiece switch (32), by means of which the workpiece (13) led away from the unloading device (26) can be transferred into the longitudinal conveying device (31) or onto the workpiece support (29).