Indexable turning blade and groove-shaped structure thereof
By designing a grooved structure for indexable turning inserts, the problem of poor versatility of existing inserts is solved, enabling continuous and intermittent machining of various materials, with good chip removal effect, and suitable for machining needs of various materials.
Patent Information
- Application Number
- CN202520476103.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing turning inserts cannot simultaneously meet the needs of continuous and intermittent machining of multiple materials, especially carbon steel, alloy steel and stainless steel, which have poor versatility and are prone to chip entanglement.
Design an indexable turning insert with a triangular insert body, a central clamping hole, and symmetrical mounting and positioning planes on both ends. The mounting and positioning planes surround the clamping hole, and anti-chip protrusions are provided at the corners. The groove structure encloses the cutting edge. It is suitable for continuous and intermittent machining of various materials, and the chip morphology is short spiral chips and C-shaped chips.
It enables continuous and intermittent machining of ordinary carbon steel, alloy steel and stainless steel, without chip entanglement, covering 90% of enterprise processing needs, with good versatility and low cutting resistance.
Smart Images
Figure CN223862878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turning tools, and in particular to an indexable turning insert and its groove structure. Background Technology
[0002] In actual machining, enterprises commonly process a wide variety of materials, which correspond to various working conditions. Therefore, in actual machining, materials are often categorized into P, K, M, S, N, and H classes to select the corresponding insert grades and chip breakers. However, some special workpieces may incorporate carbon steel, alloy steel, and stainless steel components. Existing turning tools generally cannot simultaneously meet the machining requirements of these materials, which is referred to in the industry as poor versatility. During machining, for some materials, it is not only impossible to simultaneously meet the requirements of continuous and intermittent machining, but it is also usually impossible to achieve zero chip entanglement. Therefore, it is very necessary to design an insert with versatility for the above materials. Utility Model Content
[0003] The purpose of this invention is to provide an indexable turning insert and its groove structure to solve the problem of poor versatility of existing turning inserts.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] An indexable turning insert and its grooved structure include an insert body, the insert body being triangular in shape, with a clamping hole in the middle of the insert body. The upper and lower end faces of the insert body are symmetrically arranged with respect to a plane at half the vertical distance between the upper and lower mounting planes of the insert. Both the upper and lower end faces of the insert body include mounting and positioning planes, which surround the clamping hole. Three corners of the mounting and positioning planes are directly opposite three corners of the insert body. Chip-removing protrusions are provided between the three corners of the mounting and positioning planes and the three corners of the insert body. The portion enclosed by the mounting and positioning planes, the chip-removing protrusions, and the cutting edge of the insert body constitutes the grooved portion of the insert body.
[0006] This turning insert, with its grooved structure, can be used for roughing and semi-finishing in various continuous machining conditions of ordinary carbon steel, alloy steel, and stainless steel. Furthermore, the insert body itself is sharp, resulting in low cutting resistance. When machining stainless steel, it is suitable for both continuous and interrupted machining. Finally, regarding chip handling, when machining ordinary carbon steel, ordinary alloy steel, and stainless steel, within the depth of cut range of 1mm≤AP≤2.5mm and feed rate of 0.15mm≤Fr≤0.3mm, zero chip entanglement can be achieved, producing short spiral and C-shaped chips. This covers 90% of common machining needs in enterprises. Therefore, overall, the insert body in this application has excellent versatility.
[0007] As a further preferred embodiment of this utility model, the cutting edge plane of the blade body forms a certain angle α with the mounting and positioning plane of the blade body, the size of which is between 9.5° and 10.5°; the rake face of the blade body forms a certain angle b with the mounting and positioning plane of the blade body, the size of which is between 21° and 23°.
[0008] As a further preferred embodiment of this utility model, the vertical distance between the lowest point of the groove structure between the chip-removing protrusion of the blade body and the tip of the blade body and the highest point of the tip of the blade body is H1, and its size is between 0.185mm and 0.195mm. The width of the groove structure between the chip-removing protrusion of the blade body and the tip of the blade body is B1, and its size is between 1.75mm and 1.85mm.
[0009] As a further preferred embodiment of this utility model, the vertical distance between the lowest point of the groove structure at the narrowest point between the chip-reversing protrusion of the blade body and the main cutting edge of the blade body and the highest point of the main cutting edge of the blade body is H2, with a value between 0.55mm and 0.65mm. The width of the groove structure at the narrowest point between the chip-reversing protrusion of the blade body and the main cutting edge of the blade body is B2, with a value between 1.25mm and 1.35mm.
[0010] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:
[0011] 1. This turning insert, with its grooved structure, can be used for roughing and semi-finishing in various continuous machining conditions of ordinary carbon steel, alloy steel, and stainless steel. Furthermore, the insert body has a sharp structure and low cutting resistance. When machining stainless steel, it is suitable for both continuous and interrupted machining conditions. Finally, in terms of chip handling, when machining ordinary carbon steel, ordinary alloy steel, and stainless steel, within the depth of cut range of 1mm≤AP≤2.5mm and feed rate of 0.15mm≤Fr≤0.3mm, zero chip entanglement can be achieved, with chip morphology being short spiral chips and C-shaped chips. This covers 90% of the common machining needs of enterprises. Therefore, overall, the insert body in this application has excellent versatility. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 for Figure 1 AA-direction cross-section.
[0014] Figure 3 for Figure 2 Enlarged view of section C above.
[0015] Figure 4 for Figure 1 BB-direction cross-section.
[0016] Figure 5 for Figure 4 Enlarged view of section D above. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Specific Implementation
[0023] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 An indexable turning insert and its grooved structure are shown. The insert body 1 has a clamping hole 11 in the middle. The upper and lower end faces of the insert body 1 are symmetrically arranged with respect to a plane at half the vertical distance between the upper and lower mounting planes. Both the upper and lower end faces of the insert body 1 include mounting and positioning planes 12. The mounting and positioning planes 12 surround the clamping hole 11. The three corners of the mounting and positioning planes 12 are opposite the three corners of the insert body 1. Chip-removing protrusions 2 are provided between the three corners of the mounting and positioning planes 12 and the three corners of the insert body 1. The portion enclosed by the mounting and positioning planes 12, the chip-removing protrusions 2, and the cutting edge 13 of the insert body 1 is the grooved portion 14 of the insert body 1.
[0024] This turning insert, with its grooved structure, can be used for roughing and semi-finishing in various continuous machining conditions of ordinary carbon steel, alloy steel, and stainless steel. Furthermore, the insert body itself is sharp, resulting in low cutting resistance. When machining stainless steel, it is suitable for both continuous and interrupted machining. Finally, regarding chip handling, when machining ordinary carbon steel, ordinary alloy steel, and stainless steel, within the depth of cut range of 1mm≤AP≤2.5mm and feed rate of 0.15mm≤Fr≤0.3mm, zero chip entanglement can be achieved, producing short spiral and C-shaped chips. This covers 90% of common machining needs in enterprises. Therefore, overall, the insert body in this application has excellent versatility. Specific Implementation
[0025] This embodiment further describes the blade body 1 based on specific embodiment 1. The cutting edge 13 plane of the blade body 1 forms a certain angle α with the mounting and positioning plane 12 of the blade body 1, which is between 9.5° and 10.5°. The rake face of the blade body 1 forms a certain angle b with the mounting and positioning plane 12 of the blade body 1, which is between 21° and 23°. Specific Implementation
[0026] This embodiment further describes the blade body 1 based on specific embodiment 1. The vertical distance between the lowest point of the groove structure between the chip-removing protrusion 2 and the tip of the blade body 1 and the highest point of the tip of the blade body 1 is H1, and its size is between 0.185mm and 0.195mm. The width of the groove structure between the chip-removing protrusion 2 and the tip of the blade body 1 is B1, and its size is between 1.75mm and 1.85mm. Specific Implementation
[0027] This embodiment further describes the blade body 1 based on specific embodiment 1. The vertical distance between the lowest point of the groove structure at the narrowest point between the chip-reversing protrusion 2 and the main cutting edge of the blade body 1 and the highest point of the main cutting edge of the blade body 1 is H2, which is between 0.55mm and 0.65mm. The width of the groove structure at the narrowest point between the chip-reversing protrusion 2 and the main cutting edge of the blade body 1 is B2, which is between 1.25mm and 1.35mm.
[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An indexable turning insert and its grooved structure, characterized in that: The blade body (1) is triangular in shape. A clamping hole (11) is provided in the middle of the blade body (1). The upper and lower surfaces of the blade body (1) are symmetrically arranged with the plane at 1 / 2 of the vertical distance between the upper and lower mounting planes of the blade as the symmetrical plane. Both the upper and lower surfaces of the blade body (1) include mounting and positioning planes (12). The mounting and positioning planes (12) are arranged around the clamping hole (11). The three corners of the mounting and positioning planes (12) are directly opposite the three corners of the blade body (1). Chip-removing protrusions (2) are provided between the three corners of the mounting and positioning planes (12) and the three corners of the blade body (1). The part enclosed by the mounting and positioning planes (12), the chip-removing protrusions (2) and the cutting edge (13) of the blade body (1) is the groove part (14) of the blade body (1).
2. The indexable turning insert and its grooved structure according to claim 1, characterized in that: The cutting edge (13) plane of the blade body (1) forms a certain angle a with the mounting and positioning plane (12) of the blade body (1), the size of which is between 9.5° and 10.5°; the rake face of the blade body (1) forms a certain angle b with the mounting and positioning plane (12) of the blade body (1), the size of which is between 21° and 23°.
3. The indexable turning insert and its grooved structure according to claim 1, characterized in that: The vertical distance between the lowest point of the groove structure between the chip-removing protrusion (2) of the blade body (1) and the tip of the blade body (1) and the highest point of the tip of the blade body (1) is H1, and its size is between 0.185mm and 0.195mm. The width of the groove structure between the chip-removing protrusion (2) of the blade body (1) and the tip of the blade body (1) is B1, and its size is between 1.75mm and 1.85mm.
4. The indexable turning insert and its grooved structure according to claim 1, characterized in that: The vertical distance between the lowest point of the groove structure at the narrowest point between the chip-reversing protrusion (2) of the blade body (1) and the main cutting edge of the blade body (1) and the highest point of the main cutting edge of the blade body (1) is H2, and its value is between 0.55mm and 0.65mm. The width of the groove structure at the narrowest point between the chip-reversing protrusion (2) of the blade body (1) and the main cutting edge of the blade body (1) is B2, and its value is between 1.25mm and 1.35mm.