Punching Tool Carrier Transverse Drive Decoupling
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Solution Overview
Problem
Existing machine tool processing units for punching metal sheets lack the ability to independently control the position of the stripper relative to the punching tool, limiting operational flexibility and efficiency, particularly in decoupling the stripper movement from the punching tool movement.
Innovation Solution
The processing unit incorporates a punch drive with a transverse drive element that allows the punching tool carrier and stripper carrier to move independently along a stroke axis, enabling both 'active' and 'passive' stripper operating modes, where the stripper's position can be defined independently of the punching tool, using a wedge gear mechanism and drive rods for precise movement and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the stripper is coupled to the punching tool carrier to move together during punching operations, then the stripper can be positioned automatically with the punching tool, but the stripper movement cannot be independently controlled from the punching tool movement
Solution Approach 1:
The coupling mechanism is segmented into a punch drive coupling portion and a stripper drive coupling portion, allowing independent control of the punching tool carrier and stripper carrier while maintaining coordinated movement when needed
Solution Approach 2:
The coupling mechanism transitions from a fixed coupled state to a decoupled state dynamically, enabling the system to switch between active stripper mode (coupled) and passive stripper mode (decoupled) based on operational requirements
2Adaptability or versatility
If the transverse drive element is fixed relative to the stripper carrier, then the stripper position is automatically controlled during punching operations, but the stripper cannot be positioned independently of the punching tool
Solution Approach 1:
The transverse drive element is designed to be movable relative to the stripper carrier along the transverse movement axis, enabling dynamic adjustment between coupled positioning (for automatic coordination) and decoupled positioning (for independent stripper control)
Solution Approach 2:
The transverse drive element acts as an intermediary between the punch drive and stripper carrier, allowing flexible transmission of movement while maintaining the option for independent positioning through its movable connection
3Volume of moving object
If the stripper carrier is supported on the punching tool carrier, then the overall structure becomes more compact, but the stripper carrier movement is constrained by the punching tool carrier position
Solution Approach 1:
The support connection between stripper carrier and punching tool carrier is segmented to allow relative movement along the transverse movement axis, maintaining compact vertical support while enabling independent horizontal positioning
Solution Approach 2:
The support relationship operates in the vertical dimension (compact stacking) while the transverse drive element provides movement independence in the horizontal dimension, effectively using multiple spatial dimensions to resolve the contradiction
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
This solution allows for flexible operation of the stripper, enabling efficient punching processes by decoupling the stripper movement from the punching tool movement, enhancing operational reliability and compactness of the processing unit, and enabling precise positioning of the stripper relative to the workpiece.
Implementation Method 1
The processing unit includes a punch drive with a transverse drive element which can be driven by a punch drive motor of the punch drive relative to the punching tool carrier with a transverse drive movement along a transverse movement axis that extends in the transverse direction of the stroke axis of the punching tool carrier
Data Source
AI summary
A processing unit of a machine tool for the punching processing of workpieces, in particular metal sheets, has a punching tool carrier configured to receive a punching tool and a stripper carrier for a stripper. The punching tool carrier can be moved by a punch drive along a stroke axis by a transverse drive element being driven by a punch drive motor relative to the punching tool carrier with a transverse drive movement along a transverse movement axis which extends in the transverse direction of the stroke axis. The stripper carrier can be moved along the stroke axis by a stripper drive, and the transverse drive element of the punch drive during the transverse drive movement can be moved relative to the stripper carrier along the transverse movement axis and the punching tool carrier and the stripper carrier can be moved relative to each other along the stroke axis.