Anchoring Plate with Adjustable Nut Parts for Spot-Welding
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Solution Overview
Problem
Boron Steel materials used in vehicle door slides and frames are difficult to design with features like flanges and lug drilling due to their high resistance and hardness, limiting the feasibility of electric welding for anchoring plates.
Innovation Solution
An anchoring plate composed of thermally-treated carbon-steel nut parts and a carbon-steel base with kinks for reinforcement, allowing electric spot-welding and adjustable buoyancy, enabling cost and weight reduction by using independent parts with different properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If electric welding is used to fasten the anchoring plate to the Boron Steel support, then the fastening strength is improved, but the material compatibility deteriorates because Boron Steel's high resistance and hardness make it incompatible with conventional welding processes
Solution Approach 1:
The invention uses a composite structure combining a carbon steel base plate (amigable a la soldadura por puntu) with a Boron Steel support structure. The carbon steel base serves as an intermediary material that is compatible with electric spot welding, while the Boron Steel provides the required high strength and hardness properties. This composite material approach resolves the contradiction by allowing welding through the carbon steel base without directly welding the Boron Steel components.
Solution Approach 2:
The carbon steel base plate acts as an intermediary element between the welding process and the Boron Steel support. Instead of attempting to weld directly to the incompatible Boron Steel, the carbon steel base provides a weldable surface that transfers the fastening force to the Boron Steel support through mechanical attachment (screws, bolts, or other fastening mechanisms), thus mediating between the welding process requirements and the material properties of Boron Steel.
2Ease of manufacture
If the anchoring plate is made as a single integrated piece, then the manufacturing process is simplified, but the weight increases and adaptability decreases
Solution Approach 1:
The anchoring plate is segmented into two distinct components: a carbon steel base plate and a separate anchoring component (such as a bracket or mounting element). This segmentation allows each component to be optimized independently - the base plate for weldability and structural support, and the anchoring component for functional requirements. The segmented design reduces overall weight by using materials and geometries tailored to specific functions, while maintaining manufacturing simplicity through standardized connection interfaces.
3Manufacturing precision
If the anchoring plate design includes fixed fastening positions, then the manufacturing precision is improved, but the adaptability to different door slide configurations deteriorates
Solution Approach 1:
The anchoring plate incorporates adjustable or movable fastening elements that can be repositioned along the carbon steel base plate. This dynamic capability allows the fastening positions to be adapted to different door slide configurations while maintaining precise positioning when installed. The design may include slots, adjustment mechanisms, or multiple pre-drilled holes that enable position variation, thus achieving both manufacturing precision (when positioned) and adaptability (when repositioned).
Solution Approach 2:
The carbon steel base plate is designed as a universal mounting surface that can accommodate various anchoring configurations and fastening patterns. By providing a standardized, weldable base with versatile attachment options, the design enables the same base plate to serve multiple door slide configurations and applications, thus achieving universality and adaptability while maintaining manufacturing precision through standardized hole patterns and mounting interfaces.
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 solution enables effective electric spot-welding and buoyancy adjustment, achieving a 20-25% weight reduction and high tightening torque, while allowing for various configurations and standardization of anchoring plates with different center distances.
Implementation Method 1
a base of, for instance, carbon-steel that does permit such electric spot-welding resulting from the stamping of a metal sheet
Implementation Method 2
electric spot-welding
Implementation Method 3
nut parts (2) made of, for instance, thermally-treated carbon steel
Data Source
Figure 1~6
Figure 7~10
Figure 11~13
AI summary
Anchoring plate of the type used as bodywork reinforcement in the fastening of motor-vehicle door slides which has a base surface that incorporates nuts for the passage of fastening screws, said anchoring plate being formed by the setting-up of a spot-weldable metal base cage part (1) and, independent of said base, heat-treated metal nut parts (2), said base (1) having fastening kinks (5) that surround said nut parts (2) and at least one welding surface (6), it being possible for said nut parts to have horizontal and/or vertical mobility in the plane of the base surface.