Drill With Intake Hole Forcing Chip Aspiration
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Solution Overview
Problem
Cutting fluids used in drilling processes often contain toxic substances, leading to environmental contamination, and existing chip discharge methods scatter chips around the workpiece, making cleaning difficult.
Innovation Solution
A drill design featuring a body with a cutting edge, grooves, and an intake hole that uses negative pressure to forcibly aspirate and discharge chips, eliminating the need for cutting fluid and improving chip collection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If cutting fluid is used to discharge chips, then chips can be discharged from the cutting zone, but environmental contamination occurs due to toxic substances in the cutting fluid
Solution Approach 1:
The invention extracts and eliminates the cutting fluid from the chip discharge system, keeping only the essential chip removal function. The chip discharge groove and aspiration system are designed to work without cutting fluid, removing the source of environmental contamination while maintaining chip discharge capability
Solution Approach 2:
The invention converts the harmful effect of chip accumulation into beneficial aspiration flow. By designing the intake hole and chip discharge groove to work with negative pressure aspiration, the system uses the natural tendency of chip accumulation to drive chip removal through suction, eliminating the need for harmful cutting fluid
2Ease of operation
If chips are discharged only through rotational force of the body, then the drill structure is simple, but chips scatter around the workpiece making cleaning difficult
Solution Approach 1:
The invention introduces a pneumatic aspiration system through the intake hole to forcibly remove chips from the cutting zone and guide them through the chip discharge groove. This pneumatic mechanism prevents chip scattering and directs chips to a collection point, significantly improving cleaning ease while adding controlled complexity to the discharge mechanism
Solution Approach 2:
The chip discharge groove acts as an intermediary channel that receives chips from the cutting zone through the intake hole and transports them to the discharge outlet. This intermediary structure prevents direct chip scattering around the workpiece and provides a controlled path for chip removal
3Productivity
If the intake hole diameter is large, then chip aspiration efficiency is improved, but tool rigidity decreases
Solution Approach 1:
The invention optimizes the intake hole diameter to a specific parameter range (0.5-1.5 times the drill diameter) that balances aspiration efficiency and tool rigidity. This parameter optimization ensures sufficient chip removal capability while maintaining the structural integrity and rigidity of the drill body
Solution Approach 2:
The chip discharge groove is extended to a specific length (0.5-1.5 times the drill diameter) to provide adequate chip transport path while minimizing impact on overall tool rigidity. The localized design of the groove and intake hole provides sufficient aspiration function without compromising the global structural strength
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 drill effectively prevents environmental contamination by removing chips without cutting fluid, simplifies cleaning, and enhances tool rigidity and lifespan by optimizing the intake hole and groove design.
Implementation Method 1
an aspiration process is carried out through the intake hole with use of negative pressure, thereby aspirating chips generated during the cutting of the workpiece from the opening
Data Source
AI summary
A drill is capable of forcibly aspirating and discharging chips to prevent environmental contamination as well as to simplify cleaning the chips. The drill has an intake hole and an opening formed therein so that the aspiration takes place through the intake hole and the chips generated in the cutting process can forcibly be aspirated from the opening. Because the chips can be discharged without using cutting fluid, the drill is useful for preventing environmental contamination. Moreover, as the chips are forcibly aspirated from the opening and discharged through the intake hole, the chips are not scattered around a workpiece under the cutting process and cleaning the chips can become simple and easy.