Cam Cutting Insert Adjustment for Precise Edge Positioning
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Solution Overview
Problem
Existing cutting edge adjustment devices using cams do not accurately relate rotational cam movement to cutting edge position adjustments, making precise and efficient adjustments difficult and time-consuming.
Innovation Solution
A cutting edge adjustment device featuring a rotary member with a cylindrical portion and a cam portion having a gradually increasing radius, allowing direct or indirect pressing of the cutting insert to adjust the cutting edge position, enabling accurate and rapid adjustments by correlating rotational movement with cutting edge displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a typical cam-based cutting edge adjustment device is used, then the cutting edge position can be adjusted, but the relationship between cam rotation amount and cutting edge movement amount is not clear, making accurate adjustment difficult and time-consuming
Solution Approach 1:
The patent applies scale markings (visual indicators) on the rotary member to indicate rotational position. These markings allow the operator to visually determine the relationship between cam rotation and cutting edge movement, enabling precise adjustment without time-consuming trial and error. The scale markings transform the invisible rotational displacement into visible, measurable increments.
Solution Approach 2:
The patent incorporates scale markings that provide visual feedback to the operator during adjustment. By observing the position of markings on the rotary member, the operator can immediately see the effect of rotation on cutting edge position, enabling closed-loop adjustment without external measurement tools or prolonged adjustment time.
2Productivity
If a cam-based adjustment device is used without considering rotational-movement relationship, then the structure remains simple, but accurate and quick adjustment cannot be achieved
Solution Approach 1:
The patent adds scale markings to the rotary member structure. These markings are simple visual elements that provide immediate feedback on rotational position and corresponding cutting edge displacement. The added complexity is minimal (just markings on the surface) while the gain in adjustment speed and accuracy is substantial.
Solution Approach 2:
The scale markings act as an intermediary between the cam rotation and the cutting edge movement. They translate the rotational motion into visible positional information, allowing the operator to understand and control the adjustment process without complex mechanisms or calculations.
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
Facilitates precise and quick adjustment of the cutting edge position with high accuracy, reducing the time and effort required for alignment.
Implementation Method 1
at least one cam portion (19) having a cam face whose radius is gradually increased in a manner corresponding to the amount of the movement are arranged in a direction of a rotational center axis (O), and wherein the cutting insert (4) is directly or indirectly pressed against the rotary member (5) by the action of the cam face according to the rotation of the rotary member (5)
Data Source
Figure 1(A)~1(B)
Figure 2(A)~2(C)
Figure 3(A)~3(C)
AI summary
Provided is a cutting edge adjustment device capable of readily adjusting the position of a cutting edge with high accuracy by the use of a rotary member such as a cam. For this purpose, a cutting edge adjustment device (1) for a cutting tool for adjusting the position of a cutting edge of a cutting insert (4) by causing movement of the cutting insert (4) includes a rotary member (5) for producing the movement. The rotary member (5) is formed into a shape in which a substantially cylindrical portion (17, 18) having a constant radius and a cam portion (19) having a cam face whose radius is gradually increased in a manner corresponding to the amount of the movement are arranged in a direction of a rotational center axis (O). The cam face is formed in such a manner as to have a section in which a radius is linearly increased, and consequently, the unit rotational angle of the rotary member (5) on the rotational center axis is proportional to the unit movement amount of the cutting insert (4).