Upsetting Press Die Cooling and Lubrication
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Solution Overview
Problem
Traditional hydraulic upsetting presses for oil-bearing pipes face issues with cooling and lubrication efficiency, die replacement complexity, and increased maintenance due to the internal positioning of dies, leading to decreased productivity and quality.
Innovation Solution
The design of an upsetting press with independent die holding means that can be moved outside the working space for cooling and lubrication, allowing for rapid replacement and simplifying the supporting structure, enabling efficient cooling, lubrication, and maintenance without expert personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the dies are positioned inside the working space of the press for traditional hydraulic upsetting, then the press structure is compact, but the cooling and lubrication efficiency decreases and maintenance becomes complex
Solution Approach 1:
The die holding means are made independent and separable from the supporting structure, allowing the dies to be removed and moved outside the working space for maintenance while keeping the press structure intact
Solution Approach 2:
The dies are extracted from the confined working space and positioned outside during cooling and lubrication operations, enabling efficient access to die surfaces without disassembling the press structure
2Productivity
If the dies remain inside the working space during operation, then the press maintains continuous operation capability, but productivity decreases due to longer cycle times for cooling and lubrication
Solution Approach 1:
The dies are moved outside the working space immediately after each upsetting operation to undergo cooling and lubrication in parallel with preparation for the next operation, eliminating sequential waiting time
Solution Approach 2:
While one die is being cooled and lubricated outside the working space, the other die remains positioned for continuous upsetting operations, maintaining uninterrupted production flow
3Manufacturing precision
If traditional hydraulic presses use internal die positioning, then the supporting structure is simplified, but the quality of upsetting decreases due to inadequate cooling and lubrication
Solution Approach 1:
The die holding means are made movable rather than fixed, allowing dynamic repositioning of dies between the working space and external maintenance positions to optimize both quality and operational efficiency
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 enhances productivity by reducing cycle time, improving quality through effective cooling and lubrication, and simplifying the press setup, while minimizing downtime and the need for skilled labor.
Implementation Method 1
The penetration of the second cylindrical portion into the end causes the local compression of the healed metallic material, which is reallocated according to the shape of the die
Implementation Method 2
the die and the punch used must be necessarily cooled (e.g. with water)
Implementation Method 3
these maintenance interventions (washing-lubrication) are absolutely necessary due to the temperature reached by the material
Implementation Method 4
the die and the punch used must be necessarily cooled (e.g. with water) and lubricated (e.g. with graphite)
Data Source
AI summary
The present invention relates to an upsetting press (1, 1′) for upsetting an end (2) of a metallic material pipe (3), e.g. for petroleum applications. The press (1, 1′) comprises a supporting structure (10) which defines a working space and first locking means (15) for locking the pipe (3) to be upset. The press further comprises first upsetting means comprising at least one first upsetting die formed by a first pair of half dies (21, 22) which can be separated and closed about the end (2) of the pipe (3) to be upset and at least one axially movable cylindrical punch (30). The press (1, 1′) further comprises die holding means which support the half dies (21, 22) moving them between a closing position and an opening position. According to the invention, the die holding means are independent from said supporting structure and are transversally movable (102) between an operating position in which the half dies (21, 22) can be closed about the end (2) of the pipe (3) to be upset and at least a non-operating position such that the half dies can be washed and/or lubricated outside the working space of the press.