Electric Pipe Expander Chuck Structure for Precise Socket Forming
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Solution Overview
Problem
Existing pipe expanders, both manual and electric, face challenges with complex structures, low positioning precision, and inefficiencies in pipe expanding processing, leading to time and labor waste, and inconsistent pipe socket quality.
Innovation Solution
An electric pipe expander with a simplified structure featuring a mandrel sliding cavity, chuck body, and worm gear mechanism, which includes an elastic body for uniform pipe expansion and precise positioning, reducing manual labor and improving processing efficiency and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a threaded rotary rod clamp is used for pipe positioning, then the pipe can be clamped and positioned, but the positioning precision is low and time and labor are wasted during clamping
Solution Approach 1:
The patent replaces the traditional threaded rotary rod clamp with a positioning jaw that slides along guide rails. This substitution eliminates the need for threading operations and manual clamping adjustments, achieving precise positioning through the sliding mechanism guided by the guide rails, thereby reducing both time and labor while improving positioning precision.
Solution Approach 2:
The positioning jaw is designed to be movable along the guide rails, allowing dynamic adjustment to different pipe positions. This dynamic positioning mechanism enables quick adaptation to various pipe locations without requiring time-consuming threaded adjustments, thus improving both positioning speed and precision.
2Productivity
If an electric pipe expander is used, then time and labor are saved in pipe expanding processing, but the structure becomes complex and the device is large in size
Solution Approach 1:
The patent extracts and eliminates unnecessary mechanical components from the traditional electric pipe expander structure. By removing redundant transmission mechanisms and simplifying the drive system, the device achieves automated pipe expanding processing with reduced structural complexity and smaller size, while maintaining high processing efficiency.
Solution Approach 2:
The positioning jaw serves multiple functions: it positions the pipe, guides the mandrel, and supports the expanding operation. This multi-functional design reduces the number of separate components needed, thereby simplifying the overall structure while maintaining productivity.
3Reliability
If a threaded rotary rod clamp is used for pipe positioning, then the pipe can be clamped, but the positioning precision is low and pipe socket processing quality cannot be guaranteed
Solution Approach 1:
The patent replaces the imprecise threaded rotary rod clamp with a positioning jaw guided by precision guide rails. This substitution ensures accurate and consistent pipe positioning, which is critical for achieving high-quality pipe socket processing. The guide rails provide precise directional guidance, eliminating positioning errors that would affect processing quality.
4Ease of operation
If manual pipe expander is used, then the device is small in size and light in weight, but time and labor are wasted and pipe socket processing quality is influenced by artificial factors
Solution Approach 1:
The patent introduces an electric drive system that replaces manual operation, automating the pipe expanding process. This substitution significantly improves processing efficiency and eliminates the influence of artificial factors on quality, while the compact design maintains good portability.
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 electric pipe expander achieves high positioning precision, reduces processing time and labor, and ensures consistent pipe socket quality through the use of a worm gear mechanism and elastic body, while also being more compact and cost-effective.
Implementation Method 1
the elastic body is axially compressed. The pipe expanding cone performs pipe expanding processing in a rotary pressing manner, in the processing period, the elastic body decelerates the axial moving speed of the mandrel through self deformation
Implementation Method 2
The mandrel configured to push the pipe expanding cone to perform pipe expanding processing is driven through the worm gear and worm mechanism
Implementation Method 3
the guide screw rod achieves a support positioning and guide effect on the mandrel
Data Source
AI summary
An electric pipe expander and intelligent control circuit for the electric pipe expander are provided The electric pipe expander includes a pipe expander body and a mandrel sliding cavity disposed on the pipe expander body. A chuck body capable of clamping a pipe to be processed is disposed at an opening end of the mandrel sliding cavity. A mandrel is slidingly connected in the mandrel sliding cavity, an outer side end of the mandrel is provided with an obliquely disposed pipe expanding cone, an inner side end of the mandrel is provided with an elastic body accommodating cavity. Flat keys are disposed on the mandrel, and an elastic body is clamped and disposed between the flat keys and a bottom surface of the elastic body accommodating cavity.