Workpiece Supporting Device for Horizontal Forging Press
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Solution Overview
Problem
Cold forging machines face issues with safe gripping and transfer of workpieces, especially those with large diameter variations, leading to malfunctions and reduced production rates due to workpieces disengaging from transfer pliers, necessitating a solution to maintain production efficiency while ensuring secure workpiece handling.
Innovation Solution
A workpiece supporting device for a multiple-die horizontal forging press featuring transfer pliers with a movable stem and a rocker mechanism coupled to a driving mechanism, utilizing a detent mechanism to securely restrain and eject workpieces, ensuring firm gripping and locking by the transfer pliers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the production rate of cold forging machines is increased to 150-200 pieces per minute, then productivity is improved, but the reliability of workpiece gripping by transfer pliers deteriorates
Solution Approach 1:
The detent mechanism is activated before the workpiece is fully ejected from the die, preliminarily positioning the workpiece and preparing the transfer pliers for secure gripping. This preliminary action ensures that when high-speed transfer occurs, the workpiece is already in the correct position and orientation, preventing disengagement even at production rates of 150-200 pieces per minute
Solution Approach 2:
The detent mechanism acts as an intermediary between the die and the transfer pliers. It provides a temporary holding position that facilitates reliable transfer by ensuring the workpiece is properly positioned before being gripped by the transfer pliers, thereby maintaining gripping reliability at high production speeds
2Adaptability or versatility
If transfer pliers are used to grip workpieces with large diameter variations and several steps, then versatility is improved, but the reliability of workpiece gripping deteriorates
Solution Approach 1:
The detent mechanism provides localized support at a specific position on the workpiece (the detent face), ensuring reliable gripping regardless of the workpiece's overall shape complexity or diameter variations. This localized quality approach allows the system to handle diverse workpiece geometries while maintaining secure gripping through the dedicated detent-feature interaction
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 solution enables increased production rates up to 150-200 pieces per minute while ensuring safe and reliable transfer of workpieces, preventing accidental dropping and maintaining operational efficiency.
Implementation Method 1
a spring means affecting an arm of the rocker mechanism
Data Source
AI summary
A workpiece supporting device for a multiple-die horizontal forging press comprises a transfer pliers arranged at each recess of a die and having a movable stem operating as a workpiece ejecting means, the stem being coupled, at one end portion thereof, facing a driving mechanism, through a coupling bracket, to a driving rod, one end of which, arranged at a recess of the die respectively of the transfer pliers, houses a workpiece restraining device, formed by a rocker mechanism, which can swing about a cross pivot pin and against a spring means affecting an arm of the rocker mechanism.