Servo-Rotating Tool Module for Spring Forming
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Solution Overview
Problem
Conventional spring forming machines are limited by the fixed angle and direction of tools mounted on the front wall board, which restricts the ability to perform all-direction bending and twisting operations, and high-end machines capable of rotation are expensive and unsuitable for small gauge wires.
Innovation Solution
A servo-rotating all-function tool module is introduced, featuring a rotatable axle and servo transmission module assembly that allows tools to approach wires at various angles, enabling all-direction bending and twisting operations without the need for wire rotation, using a combination of CF-series bearings, oscillating bars, and a servo motor to control tool movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If tools are mounted to the front wall board with fixed angle and direction, then the structure is simple and cost-effective, but the ability to perform all-direction bending and twisting operations is limited
Solution Approach 1:
The patent applies the dynamics principle by making the tool mounting system movable rather than fixed. The tool module is mounted on a rotatable axle that can be positioned at different angles, allowing the tool to approach the wire from various directions. This dynamic positioning capability enables all-direction bending and twisting operations while maintaining a relatively simple overall structure compared to fully rotational wire forming machines.
2Adaptability or versatility
If a spring forming machine is designed to rotate wires for all-direction operations, then all-direction bending capability is achieved, but the cost increases and it becomes unsuitable for small gauge wires
Solution Approach 1:
The patent applies the inversion principle by reversing the conventional approach. Instead of rotating the wire to achieve all-direction operations (as in high-end machines), this invention rotates the tool module around the stationary wire. This inverted approach maintains all-direction bending capability while being cost-effective and suitable for small gauge wires, as the wire remains stationary and the tool does the rotating motion.
3Adaptability or versatility
If the number of tools mounted on the front wall board is increased, then more operations can be performed, but the space limitation and fixed direction constraints prevent suitable positioning for all-direction operations
Solution Approach 1:
The patent applies the universality principle by designing a multi-functional tool module that can perform multiple operations (bending, twisting, looping) through angular positioning rather than requiring separate dedicated tools for each function. The single tool module can be positioned at different angles on the rotatable axle to achieve various spring forms, making one tool serve multiple purposes and reducing the total number of tools needed on the front wall board.
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 module allows for flexible tool movement, replicating high-end spring forming capabilities in a cost-effective manner, suitable for diverse spring forms, by enabling tools to approach wires at different angles and perform operations like bending, twisting, and looping with precision.
Implementation Method 1
The CF-series bearing is mounted to the first end of the oscillating bar and is set in contact engagement with the inner cam track of the axle retention seat in a manner of being allowed to roll along the inner cam track
Implementation Method 2
The oscillating bar comprises a first end and a second end, and a shaft hole formed therein at a location between the first end and the second end so as to mount, in a rotatable manner, the oscillating bar in the opening of the axle slide base
Implementation Method 3
The servo transmission module assembly is mounted to the spring forming machine to provide the driving force for driving the axle slide base to slide along the axle
Data Source
AI summary
A servo-rotating all-function tool module is provided for use with a spring forming machine and includes an axle rotating tool module and a servo transmission module assembly. The axle rotating tool module is mounted to the axle and includes an axle slide base and a tool, so that the axle slide base is acted upon by a force to slide along the axle, the tool is caused to press downward or return upward. The servo transmission module assembly is mounted to the spring forming machine to provide a driving force for causing the axle slide base to slide along the axle. Since the tool module is mounted to an axle mounted to a front wall board of the spring forming machine, the direction in which the tool approaches a wire can be varied by rotating the axle in order to conduct operations of bending at different angles and twisting/looping.