Titanium alloy hardened layer roughing elliptical arc milling cutter

Abstract

The utility model discloses a titanium alloy hardened layer roughing elliptical arc milling cutter which comprises a cutter handle and a cutter head, a transition cone is fixedly connected between the cutter handle and the cutter head, a front end bottom edge is arranged at the end of the cutter head, an outer diameter side milling cutting edge is arranged on the periphery of the front end bottom edge, U-shaped cutter grooves are formed in the periphery of the outer diameter side milling cutting edge, and the cutter head is fixedly connected with the cutter handle. And an elliptic arc cutting edge is arranged at the edge of the front end bottom blade. By means of the structure, the elliptic arc bottom blade design is adopted on the front end bottom blade, impact force on a tool nose cutting edge in the cutting process is decomposed, the cutting edge is protected against tipping, and the service life limit of a tool material is fully used; the design of unequally-divided U-shaped cutter grooves is adopted, so that the rigidity of cutting edges of the cutter is guaranteed, and a sufficient chip containing space is provided for large feeding; the unequally-divided U-shaped cutter grooves can appropriately avoid resonance generated in the cutting process, vibration abrasion is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing tools, in particular to an elliptical arc milling cutter for roughing a titanium alloy hardened layer. Background Art

[0002] Titanium alloys, with their exceptional properties, are finding increasing application in the manufacturing industry. However, they are recognized as difficult materials to machine, and processing efficiency is insufficient to meet development needs. The need to overcome these bottlenecks in titanium alloy processing is growing. While titanium alloy precision forging process solutions minimize tool removal and shorten machining cycles, these processes create an oxide-hardened layer, further complicating machining.

[0003] Traditional cutting tool solutions for machining titanium alloys are nearly unusable, prone to edge chipping and burning, prematurely ending tool life and leaving tool life approaching zero, not to mention machining efficiency. Therefore, a new elliptical arc milling cutter for roughing the hardened layer of titanium alloys has been proposed. This new elliptical arc milling cutter for roughing the hardened layer of titanium alloys, combined with a precision forging process, addresses the pain points of titanium alloy machining, such as low machining efficiency and difficulty. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an elliptical arc milling cutter for roughing a titanium alloy hardened layer, which solves the problem of short service life.

[0005] The utility model also provides a roughing elliptical arc milling cutter with the above-mentioned titanium alloy hardened layer, including a shank and a cutter head, a transition cone is fixedly connected between the shank and the cutter head, a front end bottom blade is provided at the end of the cutter head, an outer diameter side milling cutting edge is provided on the periphery of the front end bottom blade, U-shaped tool grooves are provided on all four sides of the periphery of the outer diameter side milling cutting edge, and an elliptical arc cutting edge is provided at the edge of the front end bottom blade.

[0006] According to the titanium alloy hardened layer roughing elliptical arc milling cutter, the outer diameter side milling cutting edge includes an outer diameter arc back angle and a tool groove front angle.

[0007] According to the titanium alloy hardened layer roughing elliptical arc milling cutter, the U-shaped tool groove adopts an unequally divided multi-blade design of α1≠α2≠α3≠α4≠α5.

[0008] According to the titanium alloy hardened layer roughing elliptical arc milling cutter, the front end bottom blade is an elliptical arc end blade.

[0009] According to the titanium alloy hardened layer roughing elliptical arc milling cutter, the front end bottom edge includes an elliptical arc cutting edge first clearance angle, an elliptical arc cutting edge second clearance angle, an elliptical arc cutting edge ball cutting tooth and an end edge cutting edge axial rake angle.

[0010] According to the titanium alloy hardened layer roughing elliptical arc milling cutter, the center portion of the front end bottom blade adopts a hollowing design.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the utility model, an elliptical arc bottom blade design is adopted on the front bottom blade to decompose the impact force on the cutting edge during the cutting process, protect the cutting edge from chipping, and fully utilize the life limit of the tool material; the unequally divided U-shaped tool groove design is adopted to ensure the rigidity of the tool cutting edge and provide sufficient chip space for large feed roughing; the unequally divided U-shaped tool groove just avoids the resonance generated during the cutting process, reduces vibration wear and extends the service life.

[0013] 2. In the present invention, the processing pain points of titanium alloy such as low processing efficiency and difficulty in processing are solved by coordinating the precision forging billet processing process scheme; the cutting removal amount is greatly reduced, thereby improving the processing efficiency of titanium alloy and shortening the product processing cycle; thereby improving the processing efficiency of titanium alloy and solving the processing pain points such as the difficulty in processing the hardened layer of titanium alloy.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural diagram of the elliptical arc milling cutter for roughing the titanium alloy hardened layer of the utility model;

[0017] Figure 2 This is a structural diagram of the cutter head for roughing an elliptical arc milling cutter for a titanium alloy hardened layer according to the present invention;

[0018] Figure 3 It is a side view of the elliptical arc milling cutter for roughing the titanium alloy hardened layer according to the present invention.

[0019] Legend:

[0020] 1. Tool holder; 2. Tool head; 3. External diameter side milling cutting edge; 4. Front end bottom edge; 5. Elliptical arc cutting edge; 6. U-shaped tool groove; 7. External diameter arc clearance angle; 8. Tool groove rake angle; 9. End cutting edge axial rake angle; 10. Elliptical arc cutting edge first clearance angle; 11. Elliptical arc cutting edge second clearance angle; 12. Elliptical arc cutting edge ball cutting tooth; 13. Cutting design; 14. Transition cone. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] Reference Figure 1-3 The embodiment of the utility model is a titanium alloy hardened layer roughing elliptical arc milling cutter, which includes a tool handle 1 and a tool head 2. The tool head 2 is made of titanium alloy. A transition cone 14 is fixedly connected between the tool handle 1 and the tool head 2 (if the blade diameter is the same as the handle diameter, the transition cone does not exist). A front end bottom blade 4 is provided at the end of the tool head 2. The front end bottom blade 4 is an elliptical arc end blade, which can decompose the impact force on the cutting edge during the cutting process, protect the cutting edge from chipping, and fully utilize the life limit of the tool material; the center of the front end bottom blade 4 adopts a hollow design 13, and the front end bottom blade 4 includes an elliptical arc cutting edge first back angle 10, an elliptical arc cutting edge second back angle 11, and an elliptical arc cutting edge ball cutting tooth 1 2 and the axial front angle 9 of the end cutting edge, the outer diameter side milling cutting edge 3 is opened on the periphery of the front end bottom blade 4, the outer diameter side milling cutting edge 3 includes an outer diameter arc back angle 7 and a groove front angle 8, and the outer diameter side milling cutting edge 3 is provided with a U-shaped groove 6 on all sides. The U-shaped groove 6 adopts an unequally divided multi-edge design of α1≠α2≠α3≠α4≠α5, and an elliptical arc cutting edge 5 is provided at the edge of the front end bottom blade 4. The unequally divided U-shaped groove 6 design not only ensures the rigidity of the tool cutting edge, but also provides sufficient chip space for large feed roughing; the unequally divided U-shaped groove 6 just avoids the resonance generated in the cutting process, reduces vibration wear and extends the service life.

[0023] Working principle: By adopting an elliptical arc bottom blade design on the front end bottom blade 4, the impact force on the cutting edge during the cutting process is decomposed, the cutting edge is protected to avoid chipping, and the life limit of the tool material is fully utilized; the unequally divided U-shaped tool groove 6 design is adopted to ensure the rigidity of the tool cutting edge and provide sufficient chip space for large feed roughing; the unequally divided U-shaped tool groove 6 just avoids the resonance generated during the cutting process, reduces vibration wear and extends the service life.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Titanium alloy hardened layer roughing elliptical arc milling cutter, characterized by: include: A tool handle (1) and a tool head (2), wherein a transition cone (14) is fixedly connected between the tool handle (1) and the tool head (2), a front end bottom blade (4) is provided at the end of the tool head (2), an outer diameter side milling cutting edge (3) is provided on the periphery of the front end bottom blade (4), and a U-shaped tool groove (6) is provided on all four peripheries of the outer diameter side milling cutting edge (3), wherein the U-shaped tool groove (6) adopts an unequally divided multi-blade design with α1≠α2≠α3≠α4≠α5, and an elliptical arc cutting edge (5) is provided at the edge of the front end bottom blade (4).

2. The titanium alloy hardened layer roughing elliptical arc milling cutter according to claim 1, characterized in that: The outer diameter side milling cutting edge (3) comprises an outer diameter arc back angle (7) and a slot front angle (8).

3. The titanium alloy hardened layer roughing elliptical arc milling cutter according to claim 2, characterized in that: The front end bottom blade (4) is an elliptical arc end blade.

4. The titanium alloy hardened layer roughing elliptical arc milling cutter according to claim 3, characterized in that: The front end bottom edge (4) comprises an elliptical arc cutting edge first back angle (10), an elliptical arc cutting edge second back angle (11), an elliptical arc cutting edge ball cutting tooth (12) and an end edge cutting edge axial front angle (9).

5. The titanium alloy hardened layer roughing elliptical arc milling cutter according to claim 4, characterized in that: The center portion of the front end bottom blade (4) adopts a hollow design (13).

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