Blade disc milling cutter

Abstract

The utility model relates to the technical field of milling cutters, and discloses a blade disc milling cutter which comprises a cutter handle and a cutter head, one end of the cutter head is connected with the cutter handle, four cutting edges are arranged at the other end of the cutter head in the circumferential direction of the cutter head, the four cutting edges are oppositely arranged in pairs, the two opposite cutting edges are the same, and the two adjacent cutting edges are different. A main chip groove with a helical angle is formed between every two adjacent cutting edges at the other end of the tool bit along the direction close to the tool handle; in actual use, the two pairs of cutting edges which are opposite in pairs are arranged at the other end of the cutter head, the opposite cutting edges are the same, and the adjacent cutting edges are different, so that the anti-vibration milling cutter can play a good anti-vibration effect in actual machining, the cutting resonance effect can be further inhibited, the service life of the milling cutter is prolonged, and the service life of the milling cutter is prolonged. Therefore, three blades can be machined under the condition of high linear speed, and the requirements for machining efficiency and service life are met.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a blade disc milling cutter. Background Art

[0002] With the development of science and technology and the increasing demand for applications, the research and application of single-crystal superalloys are also developing and progressing. Because single-crystal superalloys have higher strength, oxidation resistance, fatigue resistance, and corrosion resistance at high temperatures, they exhibit anisotropy in their machinability, which can add certain challenges to tool cutting.

[0003] When machining a GH4169D single-crystal superalloy blade disc, the existing tool can process three blades at a linear speed of 38 m / min. However, this results in low machining efficiency and fails to meet actual production capacity requirements. To improve machining efficiency, the milling cutter's machining speed is increased, for example, by 30%, with a linear speed of 50 m / min. However, in practice, excessive linear speeds can affect the tool's vibrations, reducing the tool's lifespan to one-third of its original value.

[0004] In view of the above, the existing milling cutter has the problem of shortening its service life when the machining speed is high. Utility Model Content

[0005] In view of the shortcomings of the background technology, the present invention provides a blade disc milling cutter, and the technical problem to be solved is that the service life of the existing milling cutter decreases when the processing speed is high during processing.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a blade milling cutter, comprising a shank and a cutter head, wherein one end of the cutter head is connected to the shank, and the other end of the cutter head is provided with four cutting edges along the circumference of the cutter head, wherein the four cutting edges are arranged in pairs, and the two opposing cutting edges are identical, and the two adjacent cutting edges are different;

[0007] On the other end of the cutter head, starting from every two adjacent cutting edges, a main chip removal groove with a helical angle is provided in a direction close to the cutter handle.

[0008] In one embodiment, all four cutting edges are helical.

[0009] In a certain embodiment, the spiral shapes of two adjacent cutting edges are different.

[0010] In one embodiment, the groove indexing angle between two adjacent cutting edges of a pair is between 80° and 85°, the groove indexing angle between two adjacent cutting edges of another pair is between 95° and 100°, and the sum of the two adjacent groove indexing angles is 180°.

[0011] In one embodiment, the groove indexing angle between two adjacent cutting edges of a pair is 82°, and the groove indexing angle between two adjacent cutting edges of another pair is 98°.

[0012] In a certain embodiment, the main chip groove is streamlined, and a tooth gap chip groove is provided between two adjacent cutting edges on each main chip groove, and the bottom of the tooth gap chip groove in the extension direction is arc-shaped.

[0013] In a certain embodiment, the ends of two tooth gap chip removal grooves arranged opposite to each other in one group are arranged adjacent to each other, and the ends of two tooth gap chip removal grooves arranged opposite to each other in another group are arranged spaced apart from each other;

[0014] The ends of the bottom edges of one group of opposing cutting edges are connected to each other, and the ends of the bottom edges of the other group of opposing cutting edges are spaced apart.

[0015] In a certain embodiment, smooth-surfaced particles are distributed on the rake surface and the flank surface of the cutting edge.

[0016] In a certain embodiment, the end of the main chip flute facing away from one end of the cutter head is spaced apart from the other end of the cutter head.

[0017] Compared with the prior art, the beneficial effect of the present invention is that: in actual use, the present invention provides two pairs of opposing cutting blades on the other end of the cutter head, wherein the opposing cutting blades are identical and the adjacent cutting blades are different, so that the present invention can have a good shock-resistant effect during actual processing, can further suppress the cutting resonance effect, thereby increasing the service life of the milling cutter, and enables the present invention to process three blades at a high linear speed, meeting the requirements of processing efficiency and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model in an embodiment;

[0019] Figure 2 It is a left side view of the utility model in the embodiment;

[0020] Figure 3 Schematic diagram of the structure of the tooth gap chip groove in the embodiment;

[0021] Figure 4 Schematic cross-sectional view of the main chip flute in the embodiment. DETAILED DESCRIPTION

[0022] Illustrative embodiments of the present application include, but are not limited to, a blisk cutter.

[0023] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0024] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a", "said" and "the" used in this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items. "Include" or "comprising" and similar words mean that the elements or objects appearing before "include" or "comprising" cover the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect.

[0025] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of this application. Depending on the context, the term "if" as used herein may be interpreted as "when," "when," or "in response to determining."

[0026] like Figure 1-2 As shown, a blade milling cutter includes a handle 1 and a cutter head 2, one end of the cutter head 2 is connected to the handle 1, referring to Figure 2 , four cutting edges are provided on the other end of the cutter head 2 along the circumferential direction of the cutter head 2, the four cutting edges are arranged in pairs, and the two opposing cutting edges are identical, and the two adjacent cutting edges are different; the two cutting edges are respectively a first cutting edge 30 and a second cutting edge 31;

[0027] On the other end of the cutter head 2 , starting from between every two adjacent cutting edges and in a direction close to the cutter handle 1 , a main chip removal groove 4 with a helical angle is provided.

[0028] In actual use, the utility model sets two pairs of opposing cutting blades on the other end of the cutter head 2, wherein the opposing cutting blades are identical and the adjacent cutting blades are different. This enables the utility model to have a good shock-resistant effect during actual processing, further suppresses the cutting resonance effect, thereby increasing the service life of the milling cutter, and enables the utility model to process three blades at a high linear speed, meeting the requirements of processing efficiency and service life.

[0029] In addition, in this embodiment, the cross section of the main chip groove 4 on the cutter head 2 body is as follows: Figure 4 As shown, the main chip flute 4 in this embodiment can remove chips more smoothly, cool more fully, and have better overall strength in actual use.

[0030] Specifically, in this embodiment, Figure 2 As shown, the four cutting edges are all spiral, and the spiral shapes of two adjacent cutting edges are different.

[0031] In actual use, by setting four cutting edges with unequal teeth at the other end of the cutter head 2 and making adjacent cutting edges have unequal spiral designs, the vibration can be suppressed while reducing cutting hardening during the cutting process of the milling cutter, thereby increasing the service life of the milling cutter.

[0032] In addition, in this embodiment, the groove indexing angle between one pair of adjacent cutting edges is between 80° and 85°, the groove indexing angle between another pair of adjacent cutting edges is between 95° and 100°, and the sum of the adjacent groove indexing angles is 180°.

[0033] More specifically, if Figure 2 As shown, in this embodiment, the groove indexing angle between two adjacent cutting edges of a pair is 82°, and the groove indexing angle between two adjacent cutting edges of another pair is 98°.

[0034] Specifically, in this embodiment, Figure 2 and 3 As shown, the main chip groove 4 is streamlined. On each main chip groove 4, a tooth gap chip groove is provided between two adjacent cutting edges, and the bottom of the tooth gap chip groove in the extension direction is arc-shaped.

[0035] Specifically, in this embodiment, the ends of two tooth gap chip grooves arranged opposite to each other are arranged adjacent to each other, and the two tooth gap chip grooves are recorded as first tooth gap chip grooves 40; the ends of two tooth gap chip grooves arranged opposite to each other are arranged at intervals, and the two tooth gap chip grooves are recorded as second tooth gap chip grooves 41.

[0036] In actual use, by making the bottom surfaces of the first tooth gap chip removal groove 40 and the second tooth gap chip removal groove 41 arc-shaped, the waste chips produced by machining can be removed smoothly.

[0037] In this embodiment, in order to reduce the coefficient of friction and reduce cutting vibration during use of the milling cutter, smooth-surfaced particles are respectively provided on the rake face and the flank face of the cutting edge. In actual production, the smooth-surfaced particles can be provided on the rake face and the flank face of the cutting edge by using an existing micro-sandblasting process.

[0038] Specifically, in this embodiment, one end of the main chip flute 4 facing away from one end of the cutter head 2 is spaced apart from the other end of the cutter head 2 .

[0039] The above description is based on the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the content of the specification. Its technical scope must be determined according to the scope of the claims.

Claims

1. A blade disc milling cutter, characterized in that: The present invention comprises a knife handle (1) and a knife head (2), wherein one end of the knife head (2) is connected to the knife handle (1), and the other end of the knife head (2) is provided with four cutting edges along the circumferential direction of the knife head (2), the four cutting edges are arranged in pairs, and the two opposing cutting edges are identical, while the two adjacent cutting edges are different; On the other end of the cutter head (2), starting from every two adjacent cutting edges, a main chip removal groove (4) with a helical angle is provided in a direction close to the cutter handle (1).

2. The blade milling cutter according to claim 1, characterized in that: All four cutting edges are spiral-shaped.

3. The blade milling cutter according to claim 2, characterized in that: The spiral shapes of two adjacent cutting edges are different.

4. The blade milling cutter according to claim 1, characterized in that: The groove indexing angle between one pair of adjacent cutting edges is between 80° and 85°, the groove indexing angle between another pair of adjacent cutting edges is between 95° and 100°, and the sum of the adjacent groove indexing angles is 180°.

5. The blade disc milling cutter according to claim 4, characterized in that: The groove indexing angle between two adjacent cutting edges of one pair is 82°, and the groove indexing angle between two adjacent cutting edges of another pair is 98°.

6. The blade milling cutter according to claim 1, characterized in that: The main chip groove (4) is streamlined, and a tooth gap chip groove is provided between two adjacent cutting edges on each main chip groove (4), and the bottom of the tooth gap chip groove in the extension direction is arc-shaped.

7. The blade milling cutter according to claim 6, characterized in that: The ends of two tooth gap chip removal grooves arranged opposite to each other in one group are adjacent to each other, and the ends of two tooth gap chip removal grooves arranged opposite to each other in another group are spaced apart from each other; The ends of the bottom edges of one group of opposing cutting edges are connected to each other, and the ends of the bottom edges of the other group of opposing cutting edges are spaced apart.

8. The blade disc milling cutter according to claim 1, characterized in that: The rake surface and the flank surface of the cutting edge are distributed with particles having smooth surfaces.

9. The blade disc milling cutter according to claim 1, characterized in that: One end of the main chip removal groove (4) facing away from one end of the cutter head (2) is spaced apart from the other end of the cutter head (2).

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