Integrated Positioning Welding Robot for Vehicle Body Assembly
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Solution Overview
Problem
Existing vehicle body manufacturing techniques face challenges in maintaining high precision during clamping, positioning, and fixing of vehicle body components due to redundant equipment and reduced working efficiency and space.
Innovation Solution
A vehicle body manufacturing apparatus that integrates a jig for holding and positioning components, a welding gun with a movable electrode, and a welding position fixing member with controllable pressure, allowing for precise clamping, positioning, and fixing of components without independent operation of multiple robots, thereby reducing equipment needs and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If independent positioning robot and welding robot with separate clamping mechanisms are used, then clamping and fixing function is provided, but equipment complexity increases and working space is reduced
Solution Approach 1:
The patent combines the positioning function and welding function into a single integrated positioning welding robot. The positioning mechanism and welding mechanism share the same robotic system, eliminating the need for separate positioning robot and welding robot. This merging reduces equipment complexity while maintaining the clamping and fixing functions through the integrated system's coordinated operation.
Solution Approach 2:
The positioning welding robot is designed with multi-functionality, serving both as a positioning device and a welding device. The robot can perform positioning operations by moving the workpiece to predetermined positions, and then perform welding operations by bringing the electrode into contact with the workpiece. This universal device replaces multiple specialized devices, reducing overall equipment complexity.
2Reliability
If multiple independent robots and clamping mechanisms are provided, then clamping and fixing function is ensured, but working space is reduced and working time increases
Solution Approach 1:
By merging positioning and welding functions into a single robot system, the patent eliminates the need for multiple independent robots and their associated clamping mechanisms. This reduction in equipment number increases working space and reduces the time required for equipment installation and operation, thereby improving productivity while maintaining reliable clamping and fixing through the integrated system.
Solution Approach 2:
The positioning mechanism performs preliminary positioning of the workpiece to predetermined positions before welding. This preliminary action ensures that the workpiece is correctly positioned and clamped, providing reliable fixing for subsequent welding operations. The integrated system performs these preliminary actions efficiently without requiring separate positioning equipment.
3Measurement precision
If independent positioning and welding operations are performed, then positioning function is provided, but working time increases and working space is reduced
Solution Approach 1:
The patent merges positioning and welding operations into a single integrated robot system that can perform both functions sequentially without requiring transition between separate devices. The positioning function maintains measurement precision through the robot's positioning capabilities, while the integrated design eliminates the time loss associated with coordinating multiple independent systems and reduces the space required for multiple devices.
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
Enables high-precision clamping, positioning, and fixing of vehicle body components with reduced working time and increased working space, enhancing overall manufacturing efficiency.
Implementation Method 1
welds one work of a vehicle body to another work by spot welding
Implementation Method 2
a welding position fixing member that regulates the pressure axis, along which the electrode of the welding gun is moved, within a setting area
Data Source
AI summary
A vehicle body manufacturing apparatus includes: a jig that holds one work of the vehicle body, positions the one work to the another work, and joins the works together at a joint section; a welding gun that welds a weld portion in the joint section by an electrode that is moved along a pressure axis and pressed against the weld portion; and a welding position fixing member that regulates the pressure axis, along which the electrode is moved, within a setting area, the welding position fixing member being movable in a coaxial direction to the pressure axis along which the electrode is moved, being contactable with the joint section to interpose the joint section between the jig and the welding position fixing member, and having a controllable pressure at a time of welding the weld portion by the electrode, which is moved at the time of welding.