CN221269780U

CN221269780U - Staggered blade insert milling cutter

Info

Publication number: CN221269780U
Application number: CN202323002703.1U
Authority: CN
Inventors: 滕飞; 邓范新
Original assignee: Hunan Flandy Tools Co ltd
Current assignee: Hunan Flandy Tools Co ltd
Priority date: 2023-11-07
Filing date: 2023-11-07
Publication date: 2024-07-05
Anticipated expiration: 2033-11-07

Abstract

The utility model relates to the technical field of metal cutting tools, in particular to a staggered-blade insert milling cutter, which comprises a cutter handle part and a blade part, wherein the blade part is arranged at one end of the cutter handle part, an end tooth A and an end tooth B are arranged on the end surface of the blade part, which is far away from the cutter handle part, the end tooth A and the end tooth B are respectively arranged around the axis of the cutter handle part, the end blade of the end tooth A is perpendicular to the axis of the cutter handle part, and a chamfer is formed between the end blade of the end tooth B and the peripheral surface of the blade part. According to the embodiment of the utility model, the protruding piece (such as a step structure) on the surface of a product is machined by utilizing the end tooth A, and the chamfer is formed by utilizing the end tooth B to machine the surface of the product.

Description

Staggered blade insert milling cutter

Technical Field

The utility model relates to the technical field of metal cutting tools, in particular to an insert milling cutter with staggered blades.

Background

For some products with complex shapes, such as products with thin protruding parts and chamfer positions respectively arranged on the same plane, in the conventional end face milling process, chamfer angles and plane positions are processed independently in a mode of disassembling or multi-cutter, so that the processing quality and the smoothness of the products are ensured, and the appearance requirements of customers are met. The machining mode is simple and efficient, but the machining requirement can be met only by replacing the tool, the machining efficiency can be affected intangibly, and positioning errors and clamping errors can be generated during the tool replacement.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the staggered-blade insert milling cutter which can efficiently realize chamfering processing and milling of a protruding piece (such as a step structure) under the condition of not changing and disassembling a cutter.

The staggered-edge insert milling cutter comprises a cutter handle and a cutter edge part, wherein the cutter edge part is arranged at one end of the cutter handle, an end face, away from the cutter handle, of the cutter edge part is provided with an end tooth A and an end tooth B, the end tooth A and the end tooth B are respectively arranged around the axis of the cutter handle, the end edge of the end tooth A is perpendicular to the axis of the cutter handle, and a chamfer is formed between the end edge of the end tooth B and the peripheral surface of the cutter edge part.

The staggered-edge insert milling cutter provided by the embodiment of the utility model has at least the following beneficial effects:

According to the embodiment of the application, from the appearance requirement of a product, the end face is provided with the end tooth A and the end tooth B respectively, the end tooth A is utilized to process the protruding piece (such as a step structure) on the surface of the product, and the end tooth B is utilized to process the surface of the product to form the chamfer angle.

According to some embodiments of the utility model, the a-and B-end teeth are each provided with a 3 ° rake angle.

According to some embodiments of the utility model, the end edge of the end tooth A is provided with a butterfly angle of 0 DEG, the rear cutter surface of the end tooth A is provided with a first rear angle of the end tooth A and a second rear angle of the end tooth A, the first rear angle of the end tooth A is 3-5 DEG, and the second rear angle of the end tooth A is 12-14 deg.

According to some embodiments of the utility model, the flank of the B-end tooth is provided with a B-end tooth first relief angle and a B-end tooth second relief angle, the B-end tooth first relief angle is 8-10 °, the B-end tooth second relief angle is 12-14 °, a wiper edge is formed between the end edge of the B-end tooth and the flank of the B-end tooth, the width of the wiper edge is 0.03mm, and the flank of the wiper edge is provided with a wiper relief angle, the wiper relief angle is 3-5 °.

According to some embodiments of the utility model, the chamfer is a 45 ° chamfer.

According to some embodiments of the utility model, the heights of the a-and B-end teeth are not equal.

According to some embodiments of the utility model, the outer diameter of the blade portion is smaller than the outer diameter of the shank portion, and the outer peripheral surfaces of the a-end teeth and the B-end teeth are respectively flush with the peripheral surface of the shank portion.

According to some embodiments of the utility model, the blade part further comprises two peripheral edges, wherein the peripheral edges are arranged on the peripheral surface of the blade part, and the two peripheral edges are respectively corresponding to the end tooth A and the end tooth B.

According to some embodiments of the utility model, the rake face of the peripheral edge is provided with a peripheral edge rake angle of 3 °, the relief face of the peripheral edge is provided with a peripheral edge first relief angle of 11-13 °, the width of the peripheral edge first relief angle is 0.8±0.05mm, and the relief angle of Zhou Rendi is 25-27 °.

According to some embodiments of the utility model, the peripheral surface of the shank is provided with discharge grooves in the areas close to the end tooth A and the end tooth B, respectively, the end tooth A and the end tooth B are communicated with the corresponding discharge grooves, and the shearing angle of the discharge grooves is 9 degrees.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a staggered-edge insert milling cutter (axial angle) according to an embodiment of the present utility model;

FIG. 2 is a schematic view illustrating the machining of a product profile by a staggered-edge insert milling cutter according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a structure (horizontal angle) of a staggered-edge insert milling cutter according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the A-direction of FIG. 3 according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the rake flute positions of the A-and B-end teeth according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of parameters of an A-side tooth according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of parameters of a B-end tooth according to an embodiment of the present utility model;

Fig. 8 is a schematic diagram of parameters of a peripheral edge according to an embodiment of the utility model.

Reference numerals:

A shank portion 100; a blade portion 200; a-end teeth 210; b-end teeth 220; a wiper 221; chamfering 230; a discharge chute 240; a peripheral edge 250; rake angle τ of the sipe; end tooth front angle alpha; a shearing angle beta; butterfly angle gamma; the first relief angle delta 1 of the end tooth A; the end tooth A has a second relief angle delta 2; the first back angle epsilon 1 of the end tooth B; the second back angle epsilon 2 of the end tooth B; the back angle mu of the polishing blade; the peripheral edge rake angle η; zhou Rendi a relief angle θ1; zhou Rendi a relief angle θ2.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1, an insert milling cutter with staggered edges according to some embodiments of the present utility model includes a shank portion 100 and a cutting edge portion 200, wherein the cutting edge portion 200 is disposed at one end of the shank portion 100, referring to fig. 2, an end face of the cutting edge portion 200 facing away from the shank portion 100 is provided with an a-end tooth 210 and a B-end tooth 220, the a-end tooth 210 and the B-end tooth 220 are disposed around an axis of the shank portion 100, respectively, an end edge of the a-end tooth 210 is perpendicular to the axis of the shank portion 100, and a chamfer 230 is formed between an end edge of the B-end tooth 220 and a peripheral surface of the cutting edge portion 200.

According to the embodiment of the application, from the appearance requirement of a product, the end face is provided with the end tooth A210 and the end tooth B220 respectively, the end tooth A210 is utilized to process a protruding part (such as a step structure) on the surface of the product, and the end tooth B220 is utilized to process the surface of the product to form the chamfer 230.

Referring to fig. 3-5, both the a-end tooth 210 and the B-end tooth 220 are provided with a rake angle τ of 3 °. The cutter has good sharpness in cutting by adopting a smaller cutter groove rake angle tau, so that the generation of sticky scraps and work hardening in cutting is effectively avoided; the smaller cutter groove front angle tau also has good cutting edge jumping resistance, so that the cutter is effectively prevented from being broken and missing due to the fact that the cutting edge is too sharp; in addition, the smaller rake angle tau of the cutter groove has good wear resistance, which is helpful for protecting the service life of the cutter.

In the embodiment of the application, the blade part 200 adopts a common grinding wheel grooving mode, taking the diameter of the blade part 100 as D as an example, the core diameter of the blade part 200 is 0.3D, the peripheral surface of the blade part 100 is respectively provided with a discharge groove 240 in the area close to the end tooth 210A and the end tooth 220, the end tooth 210A and the end tooth 220 are respectively communicated with the corresponding discharge groove 240, the discharge groove 240 adopts a straight groove mode, and the shearing angle beta is 9 degrees. The straight flute structure is combined with the rake angle tau of the cutter flute of 3 degrees, so that the cutter flute structure is efficient and simple, and good cutting sharpness and smooth chip removal can be achieved.

Referring to fig. 6, the end edge of the a-end tooth 210 is provided with a butterfly angle γ (see fig. 2) of 0 °, the end tooth rake angle α of the rake face of the a-end tooth 210 is 3 °, the flank face of the a-end tooth 210 is provided with a first relief angle δ1 of the a-end tooth and a second relief angle δ2 of the a-end tooth, the first relief angle δ1 of the a-end tooth is 3-5 °, and the second relief angle δ2 of the a-end tooth is 12-14 °. Wherein the width of the first relief angle delta 1 of the end tooth A is 0.4mm. The end tooth 210 adopts a 0-degree butterfly angle structure, so that the cutting edge can be attached to a product as much as possible to mill when the end tooth is used for machining a plane, sharp point cutting does not exist, the flatness of the cutting edge is fully exerted, and appearance defects such as knife lines, ring lines, fish pond marks and the like do not exist on the surface of the machined product, so that the butterfly angle structure is particularly suitable for machining thin-wall parts and products with insufficient clamping rigidity and the like.

Referring to fig. 7, the rake angle α of the rake face of the B-end tooth 220 is 3 °, the flank face of the B-end tooth 220 is provided with a first relief angle ε 1 of the B-end tooth and a second relief angle ε 2 of the B-end tooth, the first relief angle ε 1 of the B-end tooth is 8-10 °, the second relief angle ε 2 of the B-end tooth is 12-14 °, a wiper 221 is formed between the end edge of the B-end tooth 220 and the flank face of the B-end tooth 220, the blade width of the wiper 221 is 0.03mm, the flank face of the wiper 221 is provided with a wiper relief angle μ, and the wiper relief angle μ is 3-5 °. The smaller relief angle of 3-5 degrees is arranged, so that the cutter has good sharpness, meanwhile, the cutter also has good wear resistance and impact resistance, the edge width of the trimming blade 221 is 0.03mm, and according to the width, the contact area between the trimming blade 221 and a product can be reduced, the contact friction force is reduced, and a good trimming effect is achieved. In general, when the product is processed, the combination of the butterfly angle gamma of the a-end tooth 210 and the wiper 221 near the chamfer 230 can form a high-gloss and no-moire effect on a flat and a chamfer.

Additionally, referring to FIG. 2, chamfer 230 is a 45 degree chamfer. The 45-degree chamfer can meet the requirement of most acute-angle chamfering structures, and the embodiment of the application forms the chamfer 230 structure on the outer peripheral surface of the B-end tooth 220, so that the chamfer 230 structure can be used for performing 45-degree chamfering treatment on the edge of a product in the processing process.

In some embodiments, the heights of the a-and B-end teeth 210, 220 are not equal to meet the machining heights of their corresponding milled workpieces, respectively.

The outer diameter of the blade 200 is smaller than the outer diameter of the shank 100, and the outer peripheral surfaces of the a-end teeth 210 and the B-end teeth 220 are flush with the peripheral surface of the shank 100. The blade portion 200 further includes two peripheral blades 250, the peripheral blades 250 being provided on the peripheral surface of the blade portion 200, the two peripheral blades 250 being provided corresponding to the a-end teeth 210 and the B-end teeth 220, respectively.

Referring to fig. 8, the rake face of the peripheral edge 250 has a peripheral edge rake angle η of 3 °, the relief face of the peripheral edge 250 has peripheral edge first relief angles θ1 and Zhou Rendi second relief angles θ2, zhou Rendi first relief angle θ1 is 11-13 °, the width of the peripheral edge first relief angle θ1 is 0.8±0.05mm, and Zhou Rendi second relief angle θ2 is 25-27 °. By adopting the biplane relief angle setting, the cutter has good sharpness under the condition of not affecting the overall rigidity and strength of the peripheral edge 250, so that the cutting work is light, rapid and stable, the generation of cutting heat is effectively avoided, and meanwhile, the problem of chip sticking of the cutting edge is well avoided.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims

1. Wrong sword inserts milling cutter, its characterized in that includes:

A knife handle;

The cutting edge part is arranged at one end of the cutter handle part, an end face, deviating from the cutter handle part, of the cutting edge part is provided with an end tooth A and an end tooth B, the end tooth A and the end tooth B are respectively arranged around the axis of the cutter handle part, the end edge of the end tooth A is perpendicular to the axis of the cutter handle part, and a chamfer is formed between the end edge of the end tooth B and the peripheral surface of the cutting edge part.

2. The misedge insert milling cutter according to claim 1, wherein the a-end tooth and the B-end tooth are each provided with a 3 ° rake angle.

3. The misedge insert milling cutter according to claim 2, wherein the end edge of the a-end tooth is provided with a butterfly angle of 0 °, the relief surface of the a-end tooth is provided with a first relief angle of the a-end tooth and a second relief angle of the a-end tooth, the first relief angle of the a-end tooth is 3-5 °, and the second relief angle of the a-end tooth is 12-14 °.

4. The misedge insert milling cutter according to claim 2, wherein the relief surface of the B-end tooth is provided with a B-end tooth first relief angle and a B-end tooth second relief angle, the B-end tooth first relief angle is 8-10 °, the B-end tooth second relief angle is 12-14 °, a wiper is formed between the end edge of the B-end tooth and the B-end tooth relief surface, the blade width of the wiper is 0.03mm, and the relief surface of the wiper is provided with a wiper relief angle, the wiper relief angle is 3-5 °.

5. The misedge insert milling cutter according to claim 1, wherein the chamfer is a 45 ° chamfer.

6. The misedge insert milling cutter according to claim 1, wherein the a-end tooth and the B-end tooth are not equal in height.

7. The misedge insert milling cutter according to claim 1, wherein the outer diameter of the blade portion is smaller than the outer diameter of the shank portion, and the outer peripheral surfaces of the a-end teeth and the B-end teeth are flush with the peripheral surface of the shank portion, respectively.

8. The wrong-edge insert milling cutter according to claim 7, wherein the edge portion further comprises two peripheral edges provided on a peripheral surface of the edge portion, the two peripheral edges being provided corresponding to the a-end teeth and the B-end teeth, respectively.

9. The wrong-edge insert milling cutter according to claim 8, wherein the rake face of the peripheral edge is provided with a peripheral edge rake angle of 3 °, the relief face of the peripheral edge is provided with a peripheral edge first relief angle and Zhou Rendi relief angles, the Zhou Rendi relief angle is 11-13 °, the Zhou Rendi relief angle has a width of 0.8 ± 0.05mm, and the Zhou Rendi relief angle is 25-27 °.

10. The wrong-edge milling cutter according to claim 1, wherein the peripheral surface of the cutter handle part is provided with a discharge groove in a region close to the end tooth A and the end tooth B respectively, the end tooth A and the end tooth B are communicated with the corresponding discharge grooves respectively, and the shearing angle of the discharge grooves is 9 degrees.