Wheel Bolt Hole Chamfer Device Simultaneous Machining
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Solution Overview
Problem
Current wheel machining processes are inefficient, with multiple procedures required for machining bolt holes, valve holes, and chamfers, leading to prolonged production times and increased costs.
Innovation Solution
A wheel bolt hole chamfer device is introduced as a fourth-procedure machining device, featuring a chamfer cutter system for automatic machining of bolt hole chamfers, incorporating pitch diameter adjustment and rotating drive, which simplifies the drive and power systems and allows for simultaneous machining of all bolt hole chamfers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple procedures are used for machining bolt holes, valve holes, and chamfers in a machining center, then machining completeness is achieved, but production time is excessively long
Solution Approach 1:
The machining process is segmented into two parts: (1) a machining center for completing complex features like valve holes and bolt hole drilling with high precision, and (2) a dedicated fourth-procedure device for specialized chamfer machining. This segmentation allows each device to focus on specific tasks, improving overall efficiency while maintaining machining completeness.
Solution Approach 2:
The fourth-procedure chamfer machining device performs chamfering operations immediately after the three-procedure machining process, preparing wheels for the next production stage without returning to the machining center. This preliminary action eliminates unnecessary cycles and reduces total production time.
2Manufacturing precision
If one-by-one machining of bolt hole chamfers is performed in a machining center, then machining accuracy is maintained, but single wheel machining time increases
Solution Approach 1:
Multiple chamfering operations are merged into a single specialized device. The fourth-procedure device can machine chamfers on multiple wheels simultaneously or in rapid succession, combining what was previously separate sequential operations into one integrated process.
Solution Approach 2:
The general-purpose machining center is replaced with a specialized chamfering device optimized for this specific operation. This substitution allows for faster, more efficient chamfer machining while maintaining accuracy through dedicated tooling and positioning systems.
3Productivity
If a fourth-procedure chamfer machining device is added to the production line, then production efficiency is improved, but device complexity increases
Solution Approach 1:
The fourth-procedure chamfer machining device is designed with universal capabilities to handle various wheel types and chamfer requirements. By consolidating multiple functions into one device, the system avoids the need for multiple specialized machines, thereby managing complexity while maintaining high productivity.
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 solution reduces the three-procedure machining time, shortens the overall machining time for a single wheel, significantly improves production efficiency, and reduces manufacturing costs, while being adaptable to wheels with different pitch diameters and bolt hole positions.
Implementation Method 1
The upper servo motor is started to drive the driving friction wheel to rotate, and the chamfer cutters can rotate via fit of the driving friction wheel and the driven friction wheels
Data Source
AI summary
A wheel bolt hole chamfer device is composed of a base, a support frame, a lower servo motor, a turntable, stop blocks, guide rails, strong springs, a driving friction wheel, driven shafts, driven friction wheels, chamfer cutters and the like. The device can be put into a production line as a fourth-procedure machining device, and bolt hole chamfers are no longer machined in three procedures, so that the three-procedure machining time is reduced; and after the fourth procedure for machining the bolt hole chamfers is supplemented, the machining time of a single wheel is shortened, and the efficiency is improved. The device integrates pitch diameter adjustment and rotating drive of the chamfer cutters, so that a drive system and a power system are greatly simplified, i.e., the manufacturing cost of the device is reduced, all bolt hole chamfers can be machined at the same time.