Combined Tool for Rear Steering Knuckle Center Hole Machining
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Solution Overview
Problem
The existing machining process for rear steering knuckle center holes requires multiple tools and frequent tool changes, leading to increased workload, prolonged machining cycles, high tool costs, and resource wastage due to inconvenient procedures and complex tool management.
Innovation Solution
A combined tool with a steplike tool bit and blade assembly that integrates multiple machining functions, allowing for simultaneous machining of various features in a rear steering knuckle center hole, reducing the need for multiple tools and tool changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple single-function tools are used to machine different features, then each feature can be machined with a dedicated tool, but the number of tools increases, tool changing frequency increases, and machining cycle time is prolonged
Solution Approach 1:
The patent combines multiple single-function tools (boring tools, face milling cutters, chamfer mills) into a single combined tool with a tool body that integrates all machining features. This merging eliminates the need for multiple tool changes and reduces machining cycle time while maintaining the precision of each feature through dedicated blade assemblies for each machining operation.
Solution Approach 2:
The combined tool is designed as a multi-functional tool that can perform multiple machining operations (boring, face milling, chamfering) simultaneously. The tool body incorporates multiple blade assemblies that can machine different features in one setup, making the tool universal for all center hole machining operations without requiring separate specialized tools.
2Manufacturing precision
If multiple tools are used for machining different features, then each tool can be optimized for its specific function, but the tool cost increases and machine tool magazine capacity is increased
Solution Approach 1:
The patent merges multiple separate tools into a single combined tool structure. The tool body integrates all necessary blade assemblies (boring blades, face milling blades, chamfering blades) into one unit, reducing the number of tools from six to one. This maintains the specialized machining capability for each feature while eliminating the complexity of managing multiple separate tools.
Solution Approach 2:
The combined tool serves as a universal tool that can perform all machining operations (boring, face milling, chamfering) that previously required separate specialized tools. Each blade assembly within the combined tool is optimized for its specific function, but all are integrated into one multi-functional tool that replaces the entire tool set.
3Manufacturing precision
If tools are fed from two directions and the working table is rotated by 180 degrees, then all features can be accessed, but the machining procedure becomes inconvenient and the workload increases
Solution Approach 1:
The combined tool merges all machining operations into a single tool that can access all features from one direction. The blade assemblies are arranged on the tool body to machine different features (center holes, arc angles, planes, chamfers) simultaneously or sequentially without requiring table rotation or complex tool feeding from multiple directions, greatly simplifying the machining procedure.
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 2D~2F
AI summary
The present disclosure relates to the field of machining, and provides a combined tool for machining a rear steering knuckle center hole and a machining method thereof. The combined tool for machining a rear steering knuckle center hole includes: a tool body, wherein the tool body includes a shank (1), a tool bar (2) and a step-like tool bit (3); the step-like tool bit (3) is provided with at least two tool teeth (32) uniformly disposed in a circumferential direction; the at least two tool teeth (32) extend along an axial direction of the combined tool for machining a rear steering knuckle center hole, and a chip discharge groove (31) is concavely arranged between any two adjacent tool teeth (31); and a blade assembly (41-44, 45-48), wherein the blade assembly (41-44, 45-48) includes various blades (41-44, 45-48); the blade assembly includes at least two groups of blades corresponding to the at least two tool teeth (31); each group of blades is mounted on a mounting plane (311) of the corresponding tool tooth (31) along the axial direction; and projections of all the blades (41-48) in the axial direction are continuous and cover a machining range of the rear steering knuckle center hole.