Wave-shaped cutter with chip control function

Abstract

The utility model discloses a wave-shaped cutter with a chip control function, which comprises a blade main body, and the cross section of the blade main body is of a quadrilateral structure; a screw positioning hole is formed in the center of the blade main body; the blade main body comprises an upper surface, a bottom mounting surface and a plurality of side mounting surfaces connected with the upper surface and the bottom mounting surface, and the included angle between the bottom mounting surface and the side mounting surfaces is greater than 90 degrees; the upper surface is provided with main cutting edges and tool nose fillets, the adjacent main cutting edges are connected through the tool nose fillets, and the tool nose fillets and the main cutting edges extend inwards to be provided with front tool faces. The side mounting surface is a rear cutter surface; the adjacent rear tool faces are connected through the tool nose circular arc curved surfaces; the main cutting edge is formed by intersecting a front cutter surface and a rear cutter surface; according to the cutter provided by the utility model, cuttings can be naturally curled to be broken, so that the cuttings can be better controlled, and the processing quality and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, and particularly to a corrugated cutter with a chip control function. Background Art

[0002] At present, the quadrilateral cutters existing in the market are generally single-sided straight or single-sided stepped straight turning inserts. During the machining process, especially in continuous cutting machining, the ability of the inserts to control the chip shape is average, and long chips are likely to be generated. Long and uncontrollable chips are likely to damage the cutter and the surface of the machined parts, thereby reducing the service life of the inserts and the surface quality of the machined parts. The long and unbroken chips occupy a large volume, and workers need to frequently clean the chips on the machining table, increasing the workload of the workers and reducing the production efficiency. The chip edges of the existing inserts are relatively simple and are all straight cutting edges, and there are fewer cutting edges during the cutting process.

[0003] The patent with the application number CN201910577215.3 in the prior art discloses a indexable cutting insert for cutting metal materials, including an insert body, which is in a polygonal shape, and the intersection of the upper and lower surfaces and the side surfaces constitutes a cutting edge; among the upper and lower surfaces, a rake face is arranged extending inwards from the cutting edge; at the corner of the insert body, the cutting edge includes an arc-shaped corner edge at the tip position and side edges arranged on both sides of the arc-shaped corner edge; on the rake face inside the tip part, a protruding platform is formed at a relative interval with the cutting edge, and a strip-shaped first protruding part is connected from the protruding platform towards the arc-shaped corner edge; a concave part with a certain volume is formed between the first protruding part, the arc-shaped corner edge and the side edge to smoothly control chips under various conditions by using this concave part. Although this patent has the characteristics of being able to control the chip flow direction and reduce the chip resistance, the cutting edge of the insert disclosed in this patent is a straight cutting edge, the chip control ability is not strong, and the cutting edge length is short, so the service life of the cutter is short. Summary of the Invention

[0004] Aiming at the problems existing in the above prior art, the utility model discloses a corrugated cutter with a chip control function. By optimizing the structure of the milling cutter, through the design of the corrugated main cutting edge, the protruding platform and the groove, the corrugated cutter can stably control the chip bending during the cutting process, is beneficial to the discharge of chips, ensures the surface quality of the parts, has a longer corrugated cutting edge length, and improves the production efficiency and the service life of the cutter.

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

[0006] A waveform cutting tool with chip control function, including a blade body, the cross-section of the blade body is a quadrilateral structure; a screw positioning hole is provided at the center of the blade body, and the blade body is symmetric about the axis of the screw positioning hole; the blade body includes an upper surface, a bottom mounting surface and a plurality of side mounting surfaces connecting the upper surface and the bottom mounting surface, and the angle between the bottom mounting surface and the side mounting surface is greater than 90°; a main cutting edge and a tool tip fillet are provided on the upper surface, and adjacent main cutting edges are connected by the tool tip fillet, and a rake face is provided by inward extension of both the tool tip fillet and the main cutting edge; the side mounting surface is a flank, and adjacent flanks are connected by a tool tip arc surface; the main cutting edge is formed by the intersection of the rake face and the flank.

[0007] On the rake face inside the tool tip fillet, a boss is provided opposite to the tool tip fillet; the boss is connected to the rake face through a transition surface; a groove is provided between the boss and the screw positioning hole to control chips by means of the groove.

[0008] Further, the blade body is provided with two pairs of main cutting edges and tool tip fillets, and the main cutting edges and the tool tip fillets are connected in sequence.

[0009] Further, the main cutting edges are symmetric about the central axis of the blade body, the projection of the main cutting edges on the plane where the bottom mounting surface is located is a rhombus, the center point is located on the axis of the screw positioning hole, and the main cutting edges can coincide after rotating 180° along the axis of the screw positioning hole.

[0010] Further, the tool tip fillets are symmetric about the central axis of the blade body, and the tool tip fillets can coincide after rotating 180° along the axis of the screw positioning hole.

[0011] Further, the upper surface of the boss is a plane and is parallel to the bottom mounting surface, and the side surface of the boss is an inclined surface.

[0012] Further, the main cutting edge is an inclined wavy curve, and the arc radius R of the main cutting edge is between 2 mm and 6 mm.

[0013] Further, the height of the boss is higher than that of the main cutting edge.

[0014] Further, the tool tip angle of the projection of the tool tip fillet on the plane where the bottom mounting surface is located is 89°.

[0015] Further, the blade body is provided with a pair of bosses and a pair of grooves, the bosses are symmetric about the central axis of the blade body, and the grooves are symmetric about the central axis of the blade body.

[0016] Further, the projection of the groove on the plane where the bottom mounting surface is located is a triangle.

[0017] Further, the blade body is fixed to the tool shank through the screw positioning holes.

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

[0019] 1. The main cutting edge of the tool disclosed by the present utility model is relatively long and the contact area of the cutting edge is large. During the cutting process of the tool, the tool has a larger contact area with the surface of the part, which can better withstand wear, slow down the wear speed, thereby extending the service life of the tool, reducing the frequency of tool change, and improving production efficiency.

[0020] 2. The present utility model adopts a pair of symmetrically arranged bosses and grooves. The groove is arranged between the boss and the screw positioning hole, and the groove has a certain volume. By the cooperation of the boss and the groove, the chip control function of the blade is stronger. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of a waveform tool with a chip control function;

[0022] Figure 2 is a top view of the upper surface of a waveform tool with a chip control function;

[0023] Figure 3 is a side view of a waveform tool with a chip control function;

[0024] Figure 4 is a schematic diagram of a waveform tool with a chip control function;

[0025] Figure 5 is a schematic diagram of the chip generated during the processing of the present utility model;

[0026] Figure 6 is a schematic diagram of the chip generated during the processing of the existing tool;

[0027] Figure 7 is an assembly schematic diagram of a waveform tool with a chip control function and a tool shank.

[0028] In the schematic diagrams: 1. Blade body; 2. Upper surface; 3. Side mounting surface; 4. Bottom mounting surface; 5. Main cutting edge; 6. Tip rounding; 7. Rake face; 8. Flank face; 9. Tip arc surface; 10. Boss; 11. Transition surface; 12. Groove; 13. Screw positioning hole; 14. Tip angle; 15. Chip; 16. Tool shank. Detailed Embodiments

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

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also 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 thus should not be construed as a limitation of 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 specified and defined, 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 integrated; 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] Embodiment 1

[0034] As Figure 1 shown, a waveform cutting tool with a chip control function includes a blade body 1, and the cross-section of the blade body 1 is a quadrilateral structure; a screw positioning hole 13 is provided at the center of the blade body 1, and the blade body 1 is symmetric about the axis of the screw positioning hole 13; the blade body 1 includes an upper surface 2, a bottom mounting surface 4, and a plurality of side mounting surfaces 3 connecting the upper surface 2 and 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°; a main cutting edge 5 and a tip fillet 6 are provided on the upper surface 2, and the adjacent main cutting edges 5 are connected by the tip fillet 6, and a rake face 7 is provided by inward extension of both the tip fillet 6 and the main cutting edge 5; the side mounting surface 3 is a flank face 8; the adjacent flank faces 8 are connected by a tip arc surface 9; the main cutting edge 5 is formed by the intersection of the rake face 7 and the flank face 8;

[0035] On the rake face 7 inside the tool tip rounding 6, a boss 10 is provided opposite to the tool tip rounding 6; the boss 10 is connected to the rake face 7 through a transition surface 11; a groove 12 is provided between the boss 10 and the screw positioning hole 13, and the chip 15 is controlled by the groove 12.

[0036] In this embodiment, as Figure 1 With Figure 2 Shown, the blade body 1 is provided with two pairs of main cutting edges 5 and tool tip roundings 6. The main cutting edges 5 and the tool tip roundings 6 are connected in sequence. The projection of the main cutting edge 5 on the plane where the bottom mounting surface 4 is located is a rhombus, and the center point falls on the axis of the screw positioning hole 13. The main cutting edge 5 can coincide after rotating 180° along the axis of the screw positioning hole 13; the two relatively arranged tool tip roundings 6 are symmetric about the central axis of the blade body 1, and the tool tip rounding 6 can coincide after rotating 180° along the axis of the blade body 1. The main cutting edges 5 are symmetrically arranged. If a problem occurs with one side of the cutting edge during the machining process of the blade, it only needs to be adjusted to the other side of the tool, reducing the number of tool changes and improving production efficiency.

[0037] Such as Figure 1 、 Figure 3 And Figure 4 Shown, the main cutting edge 5 is an inclined wavy curve. The arc radius R of the main cutting edge 5 is between 2 mm and 6 mm, and the radius of each arc can be unequal. The main cutting edge 5 close to the boss 10 gradually extends downward and smoothly transitions to the tool tip rounding 6. There is a height difference at both ends of the main cutting edge 5. One end of the main cutting edge 5 close to the boss 10 is higher than the other end of the main cutting edge 6, so that during the machining process of the blade, the generated chip 15 is smooth and naturally curved, and the chip 15 can be controlled to the greatest extent; through the inclined design of the cutting edge, on the one hand, the direction of the cutting force can be changed, so that the cutting force is perpendicular to the workpiece surface during the machining process of the blade, thereby improving the deformation and vibration of the workpiece and improving the machining quality; on the other hand, the inclined main cutting edge 5 helps to break the chip, making the chip 15 easier to break and discharge, avoiding the chip 15 being too large and winding around the workpiece and the tool, avoiding the chip 15 from causing wear to the workpiece and the tool, and at the same time, it is also easier to control the outflow direction of the chip 15, improving the safety during the machining process.

[0038] Embodiment 2

[0039] Such as Figure 1As shown in the figure, a waveform tool with chip control function includes a blade body 1, and the cross-section of the blade body 1 is a quadrilateral structure; a screw positioning hole 13 is provided at the center of the blade body 1, and the blade body 1 is symmetric about the axis of the screw positioning hole 13; the blade body 1 includes an upper surface 2, a bottom mounting surface 4, and a plurality of side mounting surfaces 3 connecting the upper surface 2 and 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°; a main cutting edge 5 and a tip fillet 6 are provided on the upper surface 2, and adjacent main cutting edges 5 are connected by the tip fillet 6, and a rake face 7 is provided with inward extensions on both the tip fillet 6 and the main cutting edge 5; the side mounting surface 3 is a flank 8; adjacent flanks 8 are connected by a tip arc surface 9; the main cutting edge 5 is formed by the intersection of the rake face 7 and the flank 8;

[0040] On the rake face 7 inside the tip fillet 6, a boss 10 is provided opposite to the tip fillet 6; the boss 10 is connected to the rake face 7 through a transition surface 11; a groove 12 is provided between the boss 10 and the screw positioning hole 13, and the chip 15 is controlled by the groove 12.

[0041] In this embodiment, as Figure 3 shown, the upper surface of the boss 10 is a plane and parallel to the bottom mounting surface 4, the side surface of the boss 10 is an inclined surface, and the side surface of the boss 10 is connected to the rake face 7 through a transition surface 11. The transition surface 11 is a continuous surface, and the transition surface 11 near the lower side of the highest point of the main cutting edge 5 is recessed into the blade body 1, and the contact area in this area is larger, which is more conducive to the discharge of the chip 15.

[0042] As Figure 3 shown in Figure 5 and Figure 6 shown, the height of the boss 10 is higher than the highest end of the main cutting edge 5. During the process of machining parts, the higher boss 10 is conducive to the bending of the chip 15, which is more conducive to chip removal, making the chip 15 easier to discharge from the cutting area and avoiding the chip 15 from winding around the blade. A pair of grooves 12 are provided between the boss 10 and the screw positioning hole 13, and the grooves 12 are symmetric about the central axis of the screw positioning hole 13. As

[0043] Embodiment 3

[0044] As Figure 1As shown in the figure, a waveform cutting tool with chip control function includes a blade body 1, and the cross-section of the blade body 1 is a quadrilateral structure; a screw positioning hole 13 is provided at the center of the blade body 1, and the blade body 1 is symmetric about the axis of the screw positioning hole 13; the blade body 1 includes an upper surface 2, a bottom mounting surface 4 and a plurality of side mounting surfaces 3 connecting the upper surface 2 and 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°; a main cutting edge 5 and a tool tip fillet 6 are provided on the upper surface 2, and adjacent main cutting edges 5 are connected by the tool tip fillet 6, and a rake face 7 is provided extending inwardly on both the tool tip fillet 6 and the main cutting edge 5; the side mounting surface 3 is a flank face 8; adjacent flank faces 8 are connected by a tool tip arc surface 9; the main cutting edge 5 is formed by the intersection of the rake face 7 and the flank face 8.

[0045] On the rake face 7 inside the tool tip fillet 6, a boss 10 is provided opposite to the tool tip fillet 6; the boss 10 is connected to the rake face 7 through a transition surface 11; a triangular groove 12 is provided between the boss 10 and the screw positioning hole 13 to control the chip 15 by using the groove 12.

[0046] As Figure 7 shown in the figure, the blade body 1 is fixed to the tool shank 16 through the screw positioning hole 13, and the bottom mounting surface 4 and two side mounting surfaces 3 of the blade body 1 are used for axial and radial positioning to firmly fix the blade body 1.

[0047] 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 embodiments of the present invention are merely examples for clearly explaining the present invention and are not limitations on the embodiments 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 embodiments here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A waveform cutting tool with chip control function, characterized in that, It includes a blade body, and the cross-section of the blade body is a quadrilateral structure; a screw positioning hole is provided at the center of the blade body, and the blade body is symmetric about the axis of the screw positioning hole; the blade body includes an upper surface, a bottom mounting surface and a plurality of side mounting surfaces connecting the upper surface and the bottom mounting surface, and the included angle between the bottom mounting surface and the side mounting surface is greater than 90°; a main cutting edge and a tool tip fillet are provided on the upper surface, and the adjacent main cutting edges are connected by the tool tip fillet, and a rake face is provided by inward extension of both the tool tip fillet and the main cutting edge; the side mounting surface is a flank, and the adjacent flanks are connected by a tool tip arc surface; the main cutting edge is formed by the intersection of the rake face and the flank. On the rake face inside the tool tip fillet, a boss is provided opposite to the tool tip fillet; the boss is connected to the rake face through a transition surface; a groove is provided between the boss and the screw positioning hole to control the chip with the groove.

2. The waveform tool with a chip control function according to claim 1, wherein The blade body is provided with two pairs of main cutting edges and tool tip fillets, and the main cutting edges and the tool tip fillets are connected in sequence.

3. The waveform tool with a chip control function according to claim 2, wherein, The main cutting edge is symmetric about the central axis of the blade body.

4. A waveform cutting tool with a chip control function according to claim 2, characterized in that, The tool tip fillet is symmetric about the central axis of the blade body.

5. A waveform cutting tool with a chip control function according to claim 1, characterized in that, The upper surface of the boss is a plane and parallel to the bottom mounting surface, and the side surface of the boss is an inclined surface.

6. The waveform cutting tool with chip control function according to claim 1, characterized in that, The main cutting edge is an inclined wavy curve, and the arc radius R of the main cutting edge is between 2 mm and 6 mm.

7. A waveform cutting tool with a chip control function according to claim 6, characterized in that, The height of the boss is higher than that of the main cutting edge.

8. A waveform cutting tool with a chip control function according to claim 1, characterized in that, The tool tip angle of the tool tip fillet projected on the plane where the bottom mounting surface is located is 89°.

9. A waveform cutting tool with a chip control function according to claim 1, characterized in that, The blade body is provided with a pair of bosses and a pair of grooves, the bosses are symmetric about the central axis of the blade body, and the grooves are symmetric about the central axis of the blade body.

10. A waveform cutting tool with a chip control function according to claim 9, characterized in that, The projection of the groove on the plane where the bottom mounting surface is located is a triangle.

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