Cutting Tool Clamping Layout for High-Speed Insert Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cutting tools with non-positive connections, such as elastic tongues, are limited in the forces they can apply and restrict machining speeds to low levels.
Innovation Solution
A cutting tool design featuring a base body with recesses for receiving cutting bodies and a clamping mechanism that securely engages the cutting bodies using guide areas and a rotating tensioning element, allowing for higher machining speeds by central loading and secure clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a frictional connection is used to secure the cutting element, then the connection is quick and inexpensive to produce, but the forces involved are limited and only low rotational speeds and machining speeds are allowed
Solution Approach 1:
The patent replaces the friction-based mechanical connection with a positive mechanical engagement system using guide areas and clamping means. The guide areas (first, second, third, fourth guide areas) create geometric interlocking between the base body and cutting body, eliminating reliance on friction alone. This substitution enables higher forces and rotational speeds while maintaining ease of manufacture through standardized guide area geometries.
2Ease of manufacture
If a frictional connection is used to secure the cutting element, then the connection is quick and inexpensive to produce, but only low rotational speeds are allowed
Solution Approach 1:
The patent replaces the friction-based mechanical connection with a positive mechanical engagement system using guide areas and clamping means. The guide areas (first, second, third, fourth guide areas) create geometric interlocking between the base body and cutting body, eliminating reliance on friction alone. This substitution enables higher forces and rotational speeds while maintaining ease of manufacture through standardized guide area geometries.
3Device complexity
If elastic tongues are used to press the cutting element against the base body, then the connection is simple to produce, but only low forces can be applied
Solution Approach 1:
The patent replaces the elastic tongue mechanism with a positive engagement system using guide areas that create geometric interlocking. The clamping means (which may include elastic elements) works in conjunction with the guide areas to provide both simple construction and high clamping forces. The guide areas ensure that the cutting body is securely positioned while the clamping means applies sufficient force for high-speed machining.
4Device complexity
If elastic tongues are used to press the cutting element against the base body, then the connection is simple to produce, but only low machining speeds are achieved
Solution Approach 1:
The patent replaces the elastic tongue mechanism with a positive engagement system using guide areas that create geometric interlocking. The clamping means (which may include elastic elements) works in conjunction with the guide areas to provide both simple construction and high clamping forces. The guide areas ensure that the cutting body is securely positioned while the clamping means applies sufficient force for high-speed machining.
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
Enables higher machining speeds and secure retention of cutting bodies, enhancing processing efficiency.
Implementation Method 1
the clamping device is a clamping mandrel with an increasing radius as a function of the circumferential angle, which can be inserted into the bore and rotated within it. Rotating the clamping mandrel causes pressure to be applied to the cutting body because the radius of the clamping mandrel increases in the area of contact between the mandrel and the cutting body during rotation.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a cutting tool (1, 101) with an arrangement of at least one cutting body (3, 103), with a base body (2, 102) having at least one first recess (5, 105) for receiving the cutting body (3, 103) and with a second recess (6, 106) for receiving a clamping means (7, 107) by means of which the cutting body (3, 103) can be acted upon against the base body (2, 102) and/or positively secured in the base body (2, 102), wherein the first recess (5, 105) has opposing first guide areas (14, 114) and second guide areas (15, 115) which cooperate with third guide areas (16, 116) and fourth guide areas (17, 117) of the cutting body (3, 103), wherein the clamping device (7, 107) has a fifth guide area (18, 118) which interacts with a sixth guide area (19, 119) of the cutting body (3, 103), wherein the first recess (5, 105) and the second recess (6,106) are arranged such that the clamping device (7, 107) is arranged adjacent to the first recess (5, 105), so that the fifth guide area (18, 118) of the clamping device (7, 107) is arranged adjacent to the first guide area (14, 114) of the first recess (5, 105) and the third guide area (16, 116) of the cutting body (3, 103) engages in the first guide area (14, 114) and the fifth guide area (18, 118) of the clamping device (7, 107) engages in the sixth guide area (19, 119).