Turning blade with positioning function

Abstract

The utility model discloses a turning blade with a positioning function, which comprises a blade main body, two cutting ends are formed on the side wall of the blade main body, a front blade surface, a rear blade surface and two side rear blade surfaces are formed on each cutting end, and a positioning structure is formed on the upper end surface or the lower end surface of the blade main body. The positioning structure is arranged at one end of the blade, so that the positioning structure occupies a small positioning space and can bear tension in all directions together with a positioning piece penetrating through the mounting hole groove in the cutting process of the cutter, the stability of the cutter in the machining process is improved, and the service life of the cutter is prolonged; the positioning structure is arranged to be a combined structure of a plurality of protrusions of a trapezoid structure, a plurality of trapezoid grooves with a self-locking function can be formed in the blade, it can be guaranteed that precise connection is always kept between the blade and the cutter body in the rotating machining process of the cutter, the connecting rigidity of the blade and the cutter body is guaranteed, the cutting machining process can be well controlled, and the machining efficiency is improved. The machining method is suitable for machining materials such as stainless steel, titanium alloy, high-temperature alloy, quenched steel and carbon steel.

Description

Technical Field

[0001] This utility model relates to the field of turning insert technology, and in particular to a turning insert with positioning function that can be used for grooving and cutting. Background Technology

[0002] In the field of precision grooving turning, the reliability of positioning is particularly important, as the rigidity of the positioning determines the grooving accuracy and the stability of tool life. Currently, insert positioning is mostly achieved by positioning components or spindle clamping of the tool holder. However, due to the unavoidable vibrations during cutting, the connection between the insert and the tool body will loosen to some extent during long-term cutting production, thus affecting the insert rigidity and cutting accuracy. As the market demands increasingly higher machining accuracy, continuous optimization and improvement of inserts are necessary to further enhance their stability and cutting precision. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention provides a turning insert with positioning function, which occupies less positioning space, can withstand tensile forces in all directions during the cutting process, extends the tool life, improves the stability of the tool during processing, and can better control the chip processing process. It is suitable for processing stainless steel, titanium alloy, high temperature alloy, hardened steel, carbon steel and other materials.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A turning insert with positioning function includes an insert body; the insert body has a flat, square structure, wherein:

[0006] The sidewall of the blade body has two symmetrically arranged cutting ends that extend outward. Each cutting end has a flat trapezoidal structure and has a rake face, a flank face, and two flank faces. Each flank face is located beside the upper / lower end face of the blade body and forms an intersecting surface with the adjacent upper / lower end face. Each rake face is in contact with the sidewall of the blade body, and each flank face is away from the blade body and is in contact with one rake face and two flank faces.

[0007] A main cutting edge is formed at the intersection of each of the rake face and a flank face, and a secondary cutting edge is formed at the intersection of each of the rake face and a secondary cutting edge. A rounded tip is formed at the intersection of the main cutting edge and each of the secondary cutting edges, and an arc surface is formed at the intersection of each of the secondary and flank faces.

[0008] A positioning structure is formed on the upper or lower end face of the blade body;

[0009] The blade body has mounting holes that extend through its upper end face, lower end face, and the positioning structure.

[0010] As a further explanation of the above technical solution:

[0011] In the above technical solution, the blade body and the two cutting ends are integrally formed and together they form a quadrilateral structure.

[0012] In the above technical solution, the positioning structure includes a number of protrusions extending toward the direction away from the upper / lower end face of the blade body.

[0013] In the above technical solution, several of the protrusions are arranged in parallel.

[0014] In the above technical solution, each of the protrusions is a trapezoidal structure, and its smaller end is away from the blade body.

[0015] In the above technical solution, the mounting slot is a through hole.

[0016] In the above technical solution, each cutting end is arranged in a left-hand or right-hand helical manner relative to the blade body, and each flank face intersects perpendicularly or obliquely with a rake face, so that the main cutting edge forms a flat or oblique shape.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a positioning structure at one end of the blade, the positioning space is smaller, and it can work together with the positioning component passing through the mounting hole to bear the tensile force in all directions during the cutting process, thereby improving the stability of the tool during processing and extending the tool life; by setting the positioning structure as a combination of several trapezoidal protrusions, several trapezoidal grooves with self-locking function can be formed on the blade, which can ensure that the blade and the tool body always maintain a precise connection during the tool rotation process, ensuring the rigidity of the connection between the blade and the tool body, and can better control the chip processing process, making it suitable for processing materials such as stainless steel, titanium alloy, high temperature alloy, quenched steel, and carbon steel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0019] Figure 2 This is a structural schematic diagram from another perspective of the first embodiment of the present invention;

[0020] Figure 3 This is a front view structural diagram of the first embodiment of the present utility model;

[0021] Figure 4 This is a side view of the structure of the first embodiment of the present invention;

[0022] Figure 5 yes Figure 4 Enlarged diagram of section B in the middle;

[0023] Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure of the C-C section;

[0024] Figure 7 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0025] Figure 8 This is a structural schematic diagram of the third embodiment of the present invention.

[0026] In the diagram: 1. Protrusion; 4. Rake face; 5. Clearance face; 6. Side clearance face; 7. Intersecting surface; 8. Arc surface; 9. Main cutting edge; 10. Secondary cutting edge; 11. Rounded tip; #100, Insert body; A1. Rake angle; A2. Clearance angle; A3. First included angle; A4. Second included angle; A5. Side clearance angle; A6. Clearance angle; A8. Third included angle. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] like Figure 1-3 As shown, a turning insert with positioning function includes an insert body #100, which has a flat square structure, wherein:

[0030] Two symmetrical cutting ends are formed on the side wall of the insert body #100, both extending outward. Each cutting end has a flat trapezoidal structure and has a rake face 4, a flank face 5, and two flank faces 6. Each flank face 6 is located on the side of the upper / lower end face of the insert body #100 and forms an intersecting surface 7 with the adjacent upper / lower end face. Each rake face 4 is in contact with the side wall of the insert body #100, and each flank face 5 is away from the insert body #100 and is in contact with a rake face 4 and two flank faces 6.

[0031] A main cutting edge 9 is formed at the intersection of each rake face 4 and a flank face 5, and a secondary cutting edge 10 is formed at the intersection of each rake face 4 and a secondary cutting edge 6. A rounded tip 11 is formed at the intersection of the main cutting edge 9 and each secondary cutting edge 10. An arc surface 8 is formed at the intersection of each flank face 6 and the flank face 5.

[0032] A positioning structure is formed on the upper or lower end face of the blade body #100;

[0033] The blade body #100 has a mounting hole groove 12 that extends through its upper end face, lower end face and positioning structure.

[0034] In this embodiment, the blade body #100 and the two cutting ends are integrally formed and together form a quadrilateral structure; the positioning structure includes a number of protrusions 1 extending in a direction away from the upper / lower end face of the blade body #100, the number of protrusions 1 are arranged in parallel, each protrusion 1 is a trapezoidal structure, and its smaller end is away from the blade body #100. In order to facilitate installation and reduce wear, the edges of each protrusion 1 are rounded to smoothly connect each intersecting plane; the mounting slot 12 is a through hole.

[0035] In application, the position and shape of each protrusion 1 can be set according to actual conditions. During cutting, machining waste can be disposed of in the space between the insert body #100 and each cutting end.

[0036] This invention features a positioning structure at one end of the cutting blade, which occupies a small positioning space. It can work together with the positioning element passing through the mounting hole to withstand tensile forces in all directions during the cutting process, improving the stability of the cutting tool and extending its life. By setting the positioning structure as a combination of several trapezoidal protrusions, several trapezoidal grooves with self-locking function can be formed on the cutting blade. This ensures that the cutting blade and the cutting tool body maintain a precise connection during the cutting process, ensuring the rigidity of the connection between the cutting blade and the cutting tool body. It can better control the chip cutting process and is suitable for machining stainless steel, titanium alloy, high-temperature alloy, quenched steel, carbon steel, etc.

[0037] like Figure 3-6As shown, in one embodiment of this utility model, when the blade body #100 is placed horizontally, the rake face 4, the flank face 5, and the two flank faces 6 are all inclined planes. The rake face 4 forms a 2° rake angle A1 with the horizontal plane, the flank face 5 forms an 8° clearance angle A2 with the vertical plane, each side flank face 6 forms a 2° side clearance angle A5 with the cutting plane, and adjacent flank faces 5 and rake faces 4 form a first included angle A3 of 82°. The intersecting surface 7 forms a second included angle A4 of 100° with the end face with the protrusion 1, and the secondary cutting edge 10 forms a 2° clearance angle A6 with the feed direction. The main cutting edge 9 has a width of 2.0 mm, the effective machining depth of the secondary cutting edge 10 can reach 5.7 mm, and the span angle of the rounded tip 11 is 0.09°.

[0038] Furthermore, each cutting edge is arranged in a left-hand or right-hand helical configuration relative to the insert body #100, and each flank face 5 intersects a rake face 4 perpendicularly or obliquely, so that the main cutting edge 9 forms a flat or beveled shape. In application, the flat main cutting edge 9 is mainly used for grooving and parting, while the beveled main cutting edge 9 is divided into left-hand and right-hand bevels, mainly used for parting.

[0039] In the above embodiments, such as Figure 4-5 As shown, the blade has a right-hand spiral structure, and its main cutting edge 9 has a flat edge structure.

[0040] like Figure 7 As shown, in another embodiment of this utility model, the main cutting edge 9 is in the shape of an oblique opening, which forms a third included angle A8 of 18° with the vertical surface.

[0041] In another embodiment of this utility model, such as Figure 8 As shown, the blade has a left-handed helical structure.

[0042] In applications, within the effective depth of cut, flat-bladed inserts can be used for cutting, grooving, and sweeping, while beveled inserts can only be used for cutting. Beveled inserts have a sharper cutting edge, resulting in a smoother cut surface, and leave less or no tail spikes, leading to better cutting performance. Flat-bladed inserts, on the other hand, generally have a smoother cut surface and leave tail spikes. Both have their advantages and disadvantages; the main cutting edge 9 can be set to be angled to the left or right depending on the actual cutting conditions to meet different machining needs.

[0043] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A turning insert with positioning function, comprising an insert body; characterized in that, The blade body has a flat, square structure, wherein: The sidewall of the blade body has two symmetrically arranged cutting ends that extend outward. Each cutting end has a flat trapezoidal structure and has a rake face, a flank face, and two flank faces. Each flank face is located beside the upper / lower end face of the blade body and forms an intersecting surface with the adjacent upper / lower end face. Each rake face is in contact with the sidewall of the blade body, and each flank face is away from the blade body and is in contact with one rake face and two flank faces. A main cutting edge is formed at the intersection of each of the rake face and a flank face, and a secondary cutting edge is formed at the intersection of each of the rake face and a secondary cutting edge. A rounded tip is formed at the intersection of the main cutting edge and each of the secondary cutting edges, and an arc surface is formed at the intersection of each of the secondary and flank faces. A positioning structure is formed on the upper or lower end face of the blade body; The blade body has mounting holes that extend through its upper end face, lower end face, and the positioning structure.

2. The turning insert with positioning function according to claim 1, characterized in that, The blade body and the two cutting ends are integrally formed and together they form a quadrilateral structure.

3. The turning insert with positioning function according to claim 1, characterized in that, The positioning structure includes several protrusions extending in a direction away from the upper / lower end face of the blade body.

4. The turning insert with positioning function according to claim 3, characterized in that, Several of the aforementioned protrusions are arranged in parallel.

5. The turning insert with positioning function according to claim 3, characterized in that, Each of the protrusions is trapezoidal in shape, and its smaller end is away from the blade body.

6. The turning insert with positioning function according to claim 1, characterized in that, The mounting slot is a through hole.

7. The turning insert with positioning function according to any one of claims 1-6, characterized in that, Each cutting edge is arranged in a left-hand or right-hand helical configuration relative to the blade body, and each flank face intersects perpendicularly or obliquely with a rake face, so that the main cutting edge forms a flat or oblique shape.

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