A shaped cutter for machining and cutting of an aeroengine

Abstract

The utility model relates to cutter technical field especially, a kind of forming cutter for aero-engine processing cutting, solve the shortcomings existing in prior art, including cutter and tool holder, the bottom end of the cutter is provided with connecting seat, connecting seat is embedded in the top surface of tool holder, and still be provided with multiple limit rods on connecting seat, limit rod is clamped between the inner wall of tool holder, and still be provided with positioning member between connecting seat and tool holder, compared with prior art, the utility model effectively improves the convenience of tool bit disassembly, also enhances the stability of connection.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically a forming tool for machining and cutting aero-engines. Background Technology

[0002] In the field of aero-engine manufacturing, the machining of complex components requiring high precision and strength is one of the core processes. Key components such as aero-engine blades and casings are typically made of difficult-to-machine materials such as high-temperature alloys and titanium alloys. These materials have high strength, high hardness, and heat resistance, but they are prone to work hardening and severe tool wear during the cutting process, resulting in low machining efficiency and difficulty in ensuring surface quality.

[0003] Chinese utility model patent CN215615344U discloses a forming drill for cutting aero-engines. This forming drill integrates a tool holder and a tool head, with the tool holder fixed by a base. A sliding adjustment of the wedge block, combined with the rotation adjustment of the chuck, allows the outer end of the chuck to insert into a groove, achieving a fixed connection. However, while this drill, with its integrated tool head and tool holder, can be used for high-intensity cutting of parts, it requires complete replacement upon damage, resulting in high costs. Therefore, we propose a forming tool for aero-engine machining to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a forming tool for machining aero-engines, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A forming tool for machining aero-engines includes a cutting tool and a tool holder. A connecting seat is provided on the bottom end of the cutting tool. The connecting seat is embedded in the top surface of the tool holder. The connecting seat is also provided with multiple limiting rods, which are locked between the inner walls of the tool holder. A positioning element is also provided through the connecting seat and the tool holder.

[0007] According to the above technical solution, the connecting seat is arranged in a frustum shape, and a connecting groove is provided on the top surface of the tool holder. The bottom end of the connecting seat can make planar contact with the bottom surface of the connecting groove, and the outer peripheral surface of the connecting seat can fit and contact the inner peripheral surface of the connecting groove.

[0008] According to the above technical solution, a limiting member is provided above the limiting rod. One end of the limiting member slides between the inner walls of the tool holder, and the other end of the limiting member can be positioned between the inner walls of the tool holder.

[0009] According to the above technical solution, the positioning component includes a positioning shaft and a bushing. The positioning shaft passes through the connecting seat, and the bushing is threadedly connected to the end of the positioning shaft. The bushing is also threadedly connected to the inner wall of the connecting seat.

[0010] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0011] By setting a frustum-shaped connecting seat at the end of the cutter head and opening a matching connecting groove in the cutter holder, the outer circumference of the frustum and the bottom plane fit together to securely install the cutter head. In addition, a limiting rod is set on the connecting seat and works with the limiting component to lock in place. A through positioning component is set between the connecting seat and the cutter holder and locked in place by a threaded connection. This effectively improves the convenience of disassembling and assembling the cutter head and enhances the stability of the connection. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the tool holder of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the cutter head of this utility model;

[0015] Figure 4 This is a structural schematic diagram of the positioning component of this utility model.

[0016] In the diagram: 1. Tool holder; 11. Positioning hole one; 12. Connecting groove; 13. Slot; 2. Tool head; 21. Connecting seat; 211. Positioning hole two; 212. Limiting rod; 3. Positioning component; 31. Positioning shaft; 32. Bushing; 4. Limiting component; 41. Adjusting plate; 42. Spring plate; 43. Paddle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model provides a technical solution: a forming tool for machining and cutting aero-engines, including a tool head 2 and a tool holder 1. A connecting groove 12 is provided in the middle of the top surface of the tool holder 1, and a positioning hole 11 is provided on the tool holder 1 through the connecting groove 12. At least three slots 13 are uniformly provided on the tool holder 1 along the circumferential direction outside the connecting groove 12. A limiting member 4 is provided above the slots 13. The limiting member 4 includes an arc-shaped adjusting piece 41. A paddle 43 (cylindrical) is fixedly connected to the top surface of the adjusting piece 41, and a spring piece 42 (cylindrical) is elastically provided on the top surface of the adjusting piece 41. The adjusting piece 41 slides between the inner walls of the tool holder 1. A fixing hole is provided on one side of the slot 13 on the tool holder 1, and the paddle 43 slides in the fixing hole. A limiting hole is provided on the other side of the slot 13 on the tool holder 1. The spring piece 42 matches the limiting hole, and when the spring piece 42 passes through the limiting hole, it can spring into the limiting hole under the action of a spring.

[0019] A frustum-shaped connecting seat 21 is fixedly connected to the bottom end of the cutter head 2. A positioning hole 211 is opened through the interior of the connecting seat 21. The diameter of the positioning hole 11 is larger than the diameter of the positioning hole 211, and the positioning hole 11 is aligned with the positioning hole 211. At least three limiting rods 212 are also fixedly connected to the outer circumferential surface of the connecting seat 21. The number of limiting rods 212 is equal to the number of slots 13.

[0020] It should be further explained that when installing the cutter head 2, align the position of the limiting rod 212 and the slot 13 and insert it downwards, so that the connecting seat 21 is embedded in the connecting groove 12, so that the bottom end face of the connecting seat 21 is in contact with the bottom face of the connecting groove 12, and the outer peripheral face of the connecting seat 21 is also in contact with the inner peripheral face of the connecting groove 12. At this time, the positioning hole 11 is also aligned with the positioning hole 211. Then, move the lever 43 and slide it along the inner wall of the fixing hole towards the side where the slot 13 is located. When the spring piece 42 pops out after passing through the slot 13, manually press it down and let it smoothly enter the inner wall of the cutter head 1 on the other side and slide until the spring piece 42 pops out from the limiting hole and stop sliding the lever 43. At this time, the adjusting piece 41 is exactly above the slot 13, and the bottom wall of the adjusting piece 41 is tangent to the limiting rod 212.

[0021] A positioning component 3 is provided between positioning hole 11 and positioning hole 211. Positioning component 3 includes positioning shaft 31 and two bushings 32. Both ends of positioning shaft 31 are provided with external thread 1. Positioning shaft 31 passes through positioning hole 211 of connecting seat 21 and its end is located in positioning hole 11 of tool holder 1 (but does not contact the inner wall of positioning hole 11). The inner surface of bushing 32 is provided with internal thread 1, which matches external thread 1. The outer surface of bushing 32 is provided with external thread 2. The inner wall of positioning hole 11 is provided with internal thread 2 that matches external thread 2. Bushing 32 is connected and matched with the end of positioning shaft 31 and the inner wall of positioning hole 11 by threaded connection.

[0022] It should be further explained that after the connecting seat 21 and the connecting groove 12 are connected, first insert one end of the positioning shaft 31 from one side of the tool holder 1, pass through the positioning hole 211 of the connecting seat 21 and come out from the other side. Adjust it so that its two ends are respectively located in the positioning holes 11 on both sides. Then, screw the two bushings 32 into the inner walls of the positioning holes 11 on both sides respectively, and screw them onto the ends of the positioning shaft 31 at the same time until they can no longer be tightened.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A forming tool for machining aero-engines, comprising a cutting tool and a tool holder (1), characterized in that, A connecting seat (21) is provided on the bottom end of the cutting tool. The connecting seat (21) is embedded in the top surface of the cutting tool holder (1). A number of limiting rods (212) are also provided on the connecting seat (21). The limiting rods (212) are locked between the inner walls of the cutting tool holder (1). A positioning element (3) is also provided between the connecting seat (21) and the cutting tool holder (1).

2. A forming tool for machining aero-engines according to claim 1, characterized in that, The connecting seat (21) is arranged in a frustum shape. A connecting groove (12) is provided on the top surface of the knife holder (1). The bottom end of the connecting seat (21) can be in planar contact with the bottom surface of the connecting groove (12), and the outer peripheral surface of the connecting seat (21) can be in close contact with the inner peripheral surface of the connecting groove (12).

3. A forming tool for machining aero-engines according to claim 1, characterized in that, A limiting member (4) is provided above the limiting rod (212). One end of the limiting member (4) slides between the inner walls of the tool holder (1), and the other end of the limiting member (4) can be positioned between the inner walls of the tool holder (1).

4. A forming tool for machining aero-engines according to claim 1, characterized in that, The positioning component (3) includes a positioning shaft (31) and a bushing (32). The positioning shaft (31) passes through the connecting seat (21), and the bushing (32) is threadedly connected to the end of the positioning shaft (31). The bushing (32) is also threadedly connected to the inner wall of the connecting seat (21).

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