Multifunctional tool with turning, boring and drilling functions

Abstract

The utility model relates to the technical field of cutters, and discloses a multifunctional cutter with turning, boring and drilling functions, which comprises a blade body with a triangular cross section. The blade main body is provided with an upper surface, a bottom mounting surface and three side mounting surfaces connected with the upper surface and the bottom mounting surface, and the side mounting surfaces are not perpendicular to the bottom mounting surface; the upper surface comprises a main cutting edge, a main cutting edge rake face, a slope walking edge, a slope walking rake face, a connecting edge, a connecting edge rake face, an edge belt, a tool nose arc edge and a tool nose arc edge rake face; a blade strip is arranged between the main cutting blade front tool face and the main cutting blade rear tool face. The multifunctional tool has the functions of turning, milling, boring and drilling, the application range of the tool is wide, the economical efficiency is high, the tool changing frequency is reduced, and the machining efficiency and the machining quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, and particularly to a multifunctional cutting tool with turning, boring and drilling functions. Background Art

[0002] At present, the cutting blades used in the machining industry are basically special blades, such as special turning, boring, drilling, milling and other special cutting tools. The functions of the blades are relatively single and the applicability is not high enough. When the workpiece needs to go through other processes, technicians need to frequently replace the cutting tools and fixtures, which is time-consuming and laborious, resulting in low utilization rate of cutting tool materials, and further leading to low production efficiency and low quality of products.

[0003] The patent with application number CN202221653027.7 in the prior art discloses a indexable multi-purpose cutting blade, including the body of the blade. A central hole is provided in the middle position of the body. The body is provided with an upper surface, a bottom mounting surface and three side mounting surfaces connecting the upper surface and the bottom mounting surface, and the side mounting surface is not perpendicular to the bottom mounting surface. The upper surface includes a main cutting edge, a front cutting surface of the main cutting edge, a slope-running edge, a front cutting surface of the slope-running edge, a connecting edge, a front cutting surface of the connecting edge, a land, a nose radius edge and a front cutting surface of the nose radius edge. The projection of the main cutting edge on the bottom surface is an equilateral triangle, and the center point of the equilateral triangle is located on the central axis of the blade body. The three main cutting edges can coincide after rotating 120° along the central axis. Summary of the Utility Model

[0004] In view of the above problems existing in the prior art, the utility model discloses a multifunctional cutting tool with turning, boring and drilling functions, which optimizes the structure of the blade, has a multifunctional blade with turning, boring and drilling functions, has a wide range of uses of the blade, high utilization rate of the blade material, and improves the processing efficiency and processing quality.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A multifunctional cutting tool with turning, boring and drilling functions includes a blade body, and the cross-section of the blade body is in a triangular structure. The blade body is provided with an upper surface, a bottom mounting surface and three side mounting surfaces connecting the upper surface and the bottom mounting surface, and the side mounting surface is not perpendicular to the bottom mounting surface. The upper surface includes a main cutting edge, a front cutting surface of the main cutting edge, a slope-running edge, a front cutting surface of the slope-running edge, a connecting edge, a front cutting surface of the connecting edge, a land, a nose radius edge and a front cutting surface of the nose radius edge. The projection of the main cutting edge on the bottom surface is an equilateral triangle, and the center point of the equilateral triangle is located on the central axis of the blade body. The three main cutting edges can coincide after rotating 120° along the central axis.

[0007] The main cutting edge is formed by the intersection of the main cutting flank and the land; the slope-running edge is formed by the intersection of the slope-running flank and the land; the connecting edge is formed by the intersection of the connecting-edge flank and the land; the tip-rounding edge is formed by the intersection of the tip-rounding flank and the land; lands are provided between the main-cutting-edge rake face and the main cutting flank, between the slope-running-edge rake face and the corner-edge flank, between the connecting-edge rake face and the connecting-edge flank, and between the tip-rounding-edge rake face and the tip-rounding flank.

[0008] The main cutting flank, the slope-running flank, the connecting-edge flank, and the tip-rounding flank are all connected to the bottom mounting surface.

[0009] Further, the main cutting edge, the connecting edge, the slope-running edge, and the tip-rounding edge are connected in sequence.

[0010] Further, there are three of the main cutting edge, the connecting edge, the slope-running edge, and the tip-rounding edge respectively.

[0011] Further, the tip angle of the tip-rounding arc is 80°.

[0012] Further, the main cutting edge is a straight cutting edge.

[0013] Further, the angle α between the projection lines of the three main cutting edges on the bottom mounting surface is 60°.

[0014] Further, the angle β between the main cutting edge and the bottom mounting surface is 4°.

[0015] Further, the upper surface is provided with three stepped surfaces protruding along the axis direction of the blade body, and the three stepped surfaces are symmetric about the central axis of the blade body.

[0016] Further, a screw positioning hole is provided at the center of the blade body, the blade body is mounted on the tool groove of the tool bar through the screw positioning hole, and the angle γ between the main cutting edge and the axis of the tool bar is 85°, and the bottom mounting surface is parallel to the axis of the tool bar.

[0017] Further, the angle between the side mounting surface and the bottom mounting surface is greater than 90°.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. The utility model provides a multi-functional tool that can be used for turning, milling, boring and drilling. The tool has a wide range of uses and strong applicability, and the cutting edges on the blade body are symmetrically distributed. When one of the cutting edges has problems, by changing the installation direction of the blade, the blade can still be used continuously, which not only improves production efficiency, saves tool changing time, but also improves the utilization rate of the blade, further saves blade materials, and is a tool with better economy.

[0020] 2. The three main cutting edges on the blade body are symmetrically distributed, so that the cutting accuracy can be guaranteed no matter which direction the blade contacts the workpiece to be cut.

[0021] 3. The blade body is provided with three symmetrically distributed main cutting edges on one side, and is positioned through the bottom mounting surface and the side mounting surface, and the blade is fixed at the tool groove of the tool bar through the positioning screw holes, so that the blade is more firmly installed on the tool groove of the tool bar and the machining efficiency of the parts is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a multi-functional tool with turning, boring and drilling;

[0023] Figure 2 It is a schematic diagram of the upper surface of a multi-functional tool with turning, boring and drilling;

[0024] Figure 3 It is a side view of a multi-functional tool with turning, boring and drilling;

[0025] Figure 4 It is a detail drawing of the assembly of a multi-functional tool with turning, boring and drilling and the tool bar;

[0026] Figure 5 It is a schematic diagram of the assembly of a multi-functional tool with turning, boring and drilling and the tool bar;

[0027] Figure 6 It is a detail drawing of the tool bar of the present utility model.

[0028] In the schematic diagrams: 1. Blade body; 2. Upper surface; 3. Side mounting surface; 4. Bottom mounting surface; 5. Main cutting edge; 6. Connecting edge; 7. Ramp edge; 8. Tip arc edge; 9. Front rake face of the main cutting edge; 10. Rear flank of the main cutting edge; 11. Front rake face of the connecting edge; 12. Rear flank of the connecting edge; 13. Front rake face of the ramp edge; 14. Rear flank of the ramp edge; 15. Front rake face of the tip arc; 16. Rear flank of the tip arc; 17. Step surface; 18. Screw positioning hole; 19. Tool bar; 20. Tool groove; 21. Land. DETAILED DESCRIPTION OF THE INVENTION

[0029] In order to clearly illustrate the technical features of the application solution of the present utility model, the present utility model will be described in detail below through specific embodiments and in conjunction with its accompanying drawings.

[0030] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0031] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0032] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0034] Embodiment 1

[0035] AsFigure 1 , Figure 2 and Figure 3 As shown in Figure 3 , a multi-functional tool with a turning boring drill includes a blade body 1. The cross-section of the blade body 1 is triangular. The blade body 1 is provided with an upper surface 2, a bottom mounting surface 4, and three side mounting surfaces 3 connecting the upper surface 2 and the bottom mounting surface 4, and the side mounting surface 3 is not perpendicular to the bottom mounting surface 4. The upper surface 2 includes a main cutting edge 5, a main cutting edge rake face 9, a slope cutting edge 7, a slope cutting edge rake face 13, a connecting edge 6, a connecting edge rake face 11, a land 21, a tip arc edge 8, and a tip arc edge rake face 15. The projection of the main cutting edge 5 on the bottom mounting surface 4 is an equilateral triangle, and the center point of the equilateral triangle is located on the central axis of the blade body 1. The three main cutting edges 5 can coincide after rotating 120° along the central axis.

[0036] The main cutting edge 5 is formed by the intersection of the main cutting flank 10 and the land 21. The slope cutting edge 7 is formed by the intersection of the slope cutting edge flank 14 and the land 21. The connecting edge 6 is formed by the intersection of the connecting edge flank 12 and the land 21. The tip arc edge 8 is formed by the intersection of the tip arc edge flank 16 and the land 21. There is a land 21 between the main cutting edge rake face 9 and the main cutting flank 10, between the slope cutting edge rake face 13 and the slope cutting edge flank 14, between the connecting edge rake face 11 and the connecting edge flank 12, and between the tip arc edge rake face 15 and the tip arc edge flank 16.

[0037] The main cutting flank 10, the slope cutting edge flank 14, the connecting edge flank 12, and the tip arc edge flank 16 are all connected to the bottom mounting surface 4, and the angle between the bottom mounting surface 4 and the side mounting surface 3 is greater than 90°.

[0038] As Figure 1 shown, in this embodiment, the blade body 1 is in the shape of a triangular prism. The main cutting edge rake face 9 refers to the rake face of the main cutting edge 5, and the main cutting flank 10 refers to the flank of the main cutting edge 5. Similarly, the rake and flank faces of other cutting edges are the same. The blade body 1 has multiple rake faces, flank faces, mounting surfaces, and the main cutting edge 5, connecting edge 6, slope cutting edge 7, and tip arc edge 8 provided between the flank face and the land 21. The main cutting edge 5, connecting edge 6, slope cutting edge 7, and tip arc edge 8 are symmetric along the central axis of the blade body 1, making the manufacturing process of the blade body 1 simple. And the blade body 1 is a single-sided design. The bottom mounting surface 4 and the three side mounting surfaces 3 on the blade body 1 serve as the positioning surfaces of the blade body 1 on the tool groove 20, providing both radial positioning and axial positioning, so that the blade body 1 is accurately positioned and firmly installed on the tool groove 20.

[0039] As Figure 2 shown in Figure 3As shown in the figure, the included angle α between the projection lines of the three main cutting edges 5 on the bottom mounting surface 4 is 60°, the included angle β between the main cutting edge 5 and the bottom mounting surface 4 is 4°. The main cutting edge is a straight edge, and the cross-section of the blade body 1 is of a triangular structure, so that the blade has a longer main cutting edge 5, thereby reducing the processing time and improving the production efficiency. It can not only reduce the cutting force during machining of parts, but also improve the machining accuracy and quality, increase the service life of the tool and reduce the processing cost.

[0040] Embodiment 2

[0041] As Figures 1-3 shown, a multi-functional tool with turning, boring and drilling functions includes a blade body 1. The cross-section of the blade body 1 is of a triangular structure. The blade body 1 is provided with an upper surface 2, a bottom mounting surface 4 and three side mounting surfaces 3 connecting the upper surface 2 and the bottom mounting surface 4, and the side mounting surface 3 is not perpendicular to the bottom mounting surface 4; the upper surface 2 includes a main cutting edge 5, a main cutting-edge rake face 9, a slope-running edge 7, a slope-running rake face 13, a connecting edge 6, a connecting-edge rake face 11, a land 21, a tip arc edge 8 and a tip arc-edge rake face 15. The projection of the main cutting edge 5 on the bottom mounting surface 4 is an equilateral triangle, and the center point of the equilateral triangle is located on the central axis of the blade body 1. The three main cutting edges 5 can coincide after rotating 120° along the central axis.

[0042] The main cutting edge 5 is formed by the intersection of the main cutting flank 10 and the land 21. The slope-running edge 7 is formed by the intersection of the slope-running flank 14 and the land 21. The connecting edge 6 is formed by the intersection of the connecting-edge flank 12 and the land 21. The tip arc edge 8 is formed by the intersection of the tip arc-edge flank 16 and the land 21; there is a land 21 between the main cutting-edge rake face 9 and the main cutting flank 10, between the slope-running rake face 13 and the slope-running flank 14, between the connecting-edge rake face 11 and the connecting-edge flank 12, and between the tip arc-edge rake face 15 and the tip arc-edge flank 16.

[0043] The main cutting flank 10, the slope-running flank 14, the connecting-edge flank 12 and the tip arc-edge flank 16 are all connected to the bottom mounting surface 4, and the included angle between the bottom mounting surface 4 and the side mounting surface 3 is greater than 90°.

[0044] As Figure 2As shown in the figure, in this embodiment, the upper surface 2 is provided with three stepped surfaces 17 that protrude along the axis direction of the blade body 1. The three stepped surfaces 17 are symmetric about the axis of the blade body 1. The stepped surface 17 serves as a chip-breaking table surface and is also connected to the chip evacuation groove, which is used for chip-breaking and smooth evacuation of chips when the blade processes parts. This can not only ensure the service life of the blade but also fully improve the surface quality of the machined parts. Specifically, an air clearance groove or a wear-reducing groove can also be provided on the upper surface 2, and the air clearance groove or the wear-reducing groove is used in cooperation with the stepped surface 17 for chip evacuation and heat dissipation, which can effectively reduce the cutting force and improve the service life of the blade.

[0045] Embodiment 3

[0046] As Figures 1-3 shown, a multi-functional tool with turning, boring, and drilling functions includes a blade body 1. The cross-section of the blade body 1 is in a triangular structure. The blade body 1 is provided with an upper surface 2, a bottom mounting surface 4, and three side mounting surfaces 3 connecting the upper surface 2 and the bottom mounting surface 4, and the side mounting surface 3 is not perpendicular to the bottom mounting surface 4. The upper surface 2 includes a main cutting edge 5, a main cutting-edge rake face 9, a slope-running edge 7, a slope-running rake face 13, a connecting edge 6, a connecting-edge rake face 11, a land 21, a tip arc edge 8, and a tip arc-edge rake face 15. The projection of the main cutting edge 5 on the bottom mounting surface 4 is an equilateral triangle, and the center point of the equilateral triangle is located on the central axis of the blade body 1. The three main cutting edges 5 can coincide by rotating 120° along the central axis.

[0047] The main cutting edge 5 is formed by the intersection of the main cutting flank 10 and the land 21. The slope-running edge 7 is formed by the intersection of the slope-running flank 14 and the land 21. The connecting edge 6 is formed by the intersection of the connecting-edge flank 12 and the land 21. The tip arc edge 8 is formed by the intersection of the tip arc-edge flank 16 and the land 21. A land 21 is provided between the main cutting-edge rake face 9 and the main cutting flank 10, between the slope-running rake face 13 and the slope-running flank 14, between the connecting-edge rake face 11 and the connecting-edge flank 12, and between the tip arc-edge rake face 15 and the tip arc-edge flank 16.

[0048] The main cutting flank 10, the slope-running flank 14, the connecting-edge flank 12, and the tip arc-edge flank 16 are all connected to the bottom mounting surface 4, and the angle between the bottom mounting surface and the side mounting surface is greater than 90°.

[0049] As Figures 4-6As shown, in this embodiment, a screw positioning hole 18 is provided at the center of the blade body 1. The blade body 1 is mounted on the tool groove 20 of the tool bar 19 through the screw positioning hole 18. The angle γ between the main cutting edge 5 and the axis of the tool bar 19 is 85°, and the bottom mounting surface 4 is parallel to the axis of the tool bar 19. This can ensure that the blade is mounted on the tool groove 20, and the main cutting edge 5 has a certain inclination relative to the part to be machined. During the turning process, whether it is radial feed or axial feed, the blade contacts the part to be machined in a progressive manner, thereby reducing the cutting force and improving the machining efficiency. At the tool groove 20 of the tool bar 19, a bottom clearance groove and a tip clearance groove are provided, which are more conducive to heat dissipation and chip removal during the machining process of the part, thereby ensuring the machining quality of the part and the service life of the tool.

[0050] The same or similar reference numerals in the drawings correspond to the same or similar components; the positional relationships described in the drawings are only for illustrative purposes and should not be construed as limitations on this patent. Obviously, the above-described embodiments of the present invention are merely examples given to clearly illustrate the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A multi-functional tool with a turning boring drill, characterized in that, It includes a blade body, and the cross-section of the blade body is in a triangular structure; the blade body is provided with an upper surface, a bottom mounting surface, and three side mounting surfaces connecting the upper surface and the bottom mounting surface, and the side mounting surface is not perpendicular to the bottom mounting surface; the upper surface includes a main cutting edge, a main cutting-edge rake face, a slope-running edge, a slope-running rake face, a connecting edge, a connecting-edge rake face, a land, a nose radius edge, and a nose radius-edge rake face; the projection of the main cutting edge on the bottom mounting surface is an equilateral triangle, and the center point of the equilateral triangle is located on the central axis of the blade body, and the three main cutting edges can coincide after rotating 120° along the central axis; The main cutting edge is formed by the intersection of the main cutting flank and the land, the slope-running edge is formed by the intersection of the slope-running flank and the land, the connecting edge is formed by the intersection of the connecting-edge flank and the land, and the nose radius edge is formed by the intersection of the nose radius-edge flank and the land; there are lands between the main cutting-edge rake face and the main cutting flank, between the slope-running rake face and the corner flank, between the connecting-edge rake face and the connecting-edge flank, and between the nose radius-edge rake face and the nose radius-edge flank; The main cutting flank, the slope-running flank, the connecting-edge flank, and the nose radius-edge flank are all connected to the bottom mounting surface.

2. The multi-functional tool with a turning boring drill according to claim 1, characterized in that, The main cutting edge, the connecting edge, the slope-running edge, and the nose radius edge are connected in sequence.

3. The multifunctional tool with a turning boring drill according to claim 2, characterized in that, There are three of the main cutting edge, the connecting edge, the slope-running edge, and the nose radius edge respectively.

4. The multifunctional tool with a turning boring drill according to claim 3, characterized in that, The nose angle δ of the nose radius edge is 80°.

5. A multi-functional tool with a turning boring drill according to claim 3, characterized in that, The main cutting edge is a straight cutting edge.

6. The multifunctional tool with a turning boring drill according to claim 5, characterized in that, The angle α between the projection lines of the three main cutting edges on the bottom mounting surface is 60°.

7. A multi-functional tool with a turning, boring and drilling function according to claim 6, characterized in that, The angle β between the main cutting edge and the bottom mounting surface is 4°.

8. A multi-functional tool with a turning boring drill according to claim 1, characterized in that, The upper surface is provided with three stepped surfaces protruding along the axis direction of the blade body, and the three stepped surfaces are symmetric about the central axis of the blade body.

9. The multifunctional tool with a turning boring drill according to claim 1, characterized in that, A screw positioning hole is provided at the center of the blade body, and the blade body is mounted on the tool groove of the tool bar through the screw positioning hole, and the angle γ between the main cutting edge and the axis of the tool bar is 85°, and the bottom mounting surface is parallel to the axis of the tool bar.

10. A multi-functional tool with a turning boring drill according to claim 1, characterized in that, The angle between the side mounting surface and the bottom mounting surface is greater than 90°.

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