Multi-Cam Press Layout for Multi-Directional Piercing in Tight Molds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional multi-directional multi-cam press devices face challenges in securing space within the narrow structural space of the press mold, leading to interference issues during cam slide return and extended driving distances, which complicates the piercing process in vehicle body sub-assembly lines.
Innovation Solution
A multi-directional multi-cam press device is designed with a cam base fixed to the lower mold, featuring a first cam slide that moves forward and backward, a cam drive that moves vertically to contact the first cam slide, and a second cam slide that moves perpendicular to the first direction, along with a return spring unit and stopper to manage the cam slides' movement, allowing for piercing in different directions without process division.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cam slides are configured in the lower mold to enable multi-directional piercing, then piercing capability in different directions is improved, but space availability in the press mold deteriorates
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement of cam slides in the lower mold to a three-dimensional configuration where cam slides are distributed across multiple levels (lower mold and upper mold). This vertical dimensionality change allows multi-directional piercing capability while maintaining adequate horizontal space within the press mold.
Solution Approach 2:
The patent embeds cam slides within the structural framework of the mold assembly, nesting them between the upper and lower molds. The cam slides are positioned in recesses or dedicated spaces within the mold structure, effectively utilizing the available three-dimensional space without protruding externally.
2Manufacturing precision
If driving distance of cam slides is extended to avoid interference during panel extraction, then piercing accuracy is improved, but mutual interference during cam slide return deteriorates
Solution Approach 1:
The patent divides the cam slide system into multiple independent units positioned at different locations and orientations within the press mold. Each cam slide operates independently with its own driving mechanism and return path, segmenting the overall piercing function into discrete, non-interfering modules that can complete their cycles without mutual interference.
Solution Approach 2:
By distributing cam slides in three-dimensional space across different planes and angles, the patent creates independent operational zones for each cam slide. This spatial separation in multiple dimensions ensures that extended driving distances for accurate piercing do not result in path intersections or interference during the return stroke.
3Adaptability or versatility
If multiple cam slides are arranged in narrow press mold space, then multi-directional piercing is enabled, but structural complexity of the mold deteriorates
Solution Approach 1:
The patent designs the cam slide mechanism as a universal, standardized component that can be replicated and positioned in multiple locations within the mold. Each cam slide unit serves the same fundamental function of converting rotational cam motion into linear piercing motion, but can be oriented at different angles and positions to achieve multi-directional piercing capability. This modular universality reduces overall structural complexity compared to designing unique mechanisms for each piercing direction.
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 configuration enables efficient piercing in multiple directions within the narrow press mold space, reducing mold manufacturing costs and process time by avoiding interference and ensuring sufficient driving distance for cam slides.
Implementation Method 1
a return spring unit connected to the cam base and the first cam slide in the first direction thereof
Data Source
AI summary
A multi-directional multi-cam press device may include a cam base fixed to the lower mold, a first cam slide provided to slide forwards and backwards along a first direction of the cam base, at least a first punch unit provided in the first cam slide along a first direction, a cam drive fixed to an upper mold configured of moving in a vertical direction with respect to the lower mold, and making cam contact with the first cam slide, a second cam slide provided in the cam drive to move forwards and backwards in a second direction perpendicular to the first direction and in contact with the cam base side, and at least a second punch unit provided on the second cam slide along a second direction.