A narrow end face slot large cutting depth special cutting tool

Abstract

The utility model belongs to metal cutting processing technical field, specifically is a kind of end face narrow slot big cutting depth special cutting tool, including tool holder, the top of the front of tool holder is equipped with V-groove, the inside fixed mounting of V-groove is equipped with V-shaped cutter bar, V-shaped cutter bar and V-shaped cutter bar cross section are adapted, the one side fixed mounting of V-shaped cutter bar top is equipped with alloy blade, the one side fixed mounting of V-groove top is equipped with limit stop, both sides of limit stop top are equipped with through-hole, the other side of V-shaped cutter bar top is equipped with several locating holes. Through the structural design of V-groove, V-shaped cutter bar, alloy blade, limit stop, realized the function of increasing flexibility, so V-shaped cutter bar can be slid in V-groove to compensate the tool service length after wear, to ensure the working length of cutting tool, avoid the drawback that wear affects chip depth.

Description

Technical Field

[0001] This utility model relates to the field of metal cutting technology, specifically a special cutting tool for narrow grooves with large depth of cut on the end face. Background Technology

[0002] With the development of science and technology, mechanical products are developing towards high-end, precision and sophistication. The structure of parts is becoming increasingly complex, and more and more parts with structural features such as narrow spaces and deep cavities are appearing. For example, deep end face grooves often appear in aerospace parts. The grooves are narrow in width but very deep, which puts forward higher requirements for machining tools.

[0003] Currently, common grooving tools on the market fix the chip-cutting assembly to the tool holder. When wear occurs during use, it is usually ground and repaired to restore the chip-cutting function. This process reduces the overall length of the cutting tool, resulting in a reduction in the length of the chip-cutting tool, which in turn makes it impossible to cut deeper grooves.

[0004] Therefore, a special cutting tool with a narrow end face and large depth of cut is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and the problem of limited processing capabilities, this utility model proposes a special cutting tool for narrow grooves on the end face with large cutting depth.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a special cutting tool for narrow groove and large depth of cut on the end face, including a tool holder, a V-shaped groove is formed on the top of the front side of the tool holder, a V-shaped tool bar is fixedly installed inside the V-shaped groove, the V-shaped tool bar is adapted to the cross-section of the V-shaped tool bar, an alloy insert is fixedly installed on one side of the top of the V-shaped tool bar, a limiting plate is fixedly installed on one side of the top of the V-shaped groove, through holes are formed on both sides of the top of the limiting plate, and several positioning holes are formed on the other side of the top of the V-shaped tool bar.

[0007] Preferably, the inner wall of the bottom of the V-groove is provided with a plurality of threaded holes, the positions of which are adapted to the through holes.

[0008] Preferably, a limiting rod is movably installed inside the through hole, and the end of the limiting rod surface is provided with an external thread, which is adapted to the internal thread of the threaded hole.

[0009] Preferably, the limiting rod is fixedly mounted with the head of an internal hexagon bolt, and the bottom of the internal hexagon bolt head and the surface of the limiting rod are fitted with a spring washer.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model achieves increased flexibility through the structural design of V-groove, V-shaped tool holder, alloy insert, and limiting plate. The V-shaped tool holder can slide inside the V-groove to compensate for the worn tool length, thereby ensuring the working length of the cutting tool and avoiding the drawback of affecting the chip depth due to wear, thus solving the problem of limited processing capacity.

[0012] 2. This utility model, through the setting of the limiting rod, facilitates the limiting of the tool bar with the through hole, further ensuring the stability of the tool bar during operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an enlarged schematic diagram of the V-shaped tool holder structure of this utility model;

[0016] Figure 3 This is a partial structural breakdown diagram of the present invention;

[0017] Figure 4 This is a partial cross-sectional view of the tool holder structure of this utility model.

[0018] In the diagram: 1. Tool holder; 2. V-groove; 3. V-shaped tool holder; 4. Carbide insert; 5. Limiting plate; 6. Through hole; 7. Positioning hole; 8. Threaded hole; 9. Limiting rod; 10. External thread; 11. Head of hexagon socket head cap screw; 12. Spring washer. Detailed Implementation

[0019] 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 scope of protection of the present utility model.

[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0021] This application discloses a special cutting tool for a narrow groove with a large depth of cut on the end face, including a tool holder 1. A V-groove 2 is formed on the top of the front side of the tool holder 1. A V-shaped tool bar 3 is fixedly installed inside the V-groove 2. The cross-section of the V-shaped tool bar 3 is adapted to the V-shaped tool bar 3. An alloy insert 4 is fixedly installed on one side of the top of the V-shaped tool bar 3. A limiting plate 5 is fixedly installed on one side of the top of the V-groove 2. Through holes 6 are formed on both sides of the top of the limiting plate 5. A plurality of positioning holes 7 are formed on the other side of the top of the V-shaped tool bar 3.

[0022] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 Through the structural design of V-groove 2, V-shaped tool holder 3, alloy insert 4, and limiting plate 5, the function of increasing flexibility is realized. Thus, the V-shaped tool holder 3 can slide inside the V-groove 2 to compensate for the working length of the worn tool, thereby ensuring the working length of the cutting tool and avoiding the drawback of affecting the chip depth due to wear.

[0023] The inner wall at the bottom of the V-groove 2 has several threaded holes 8, the positions of which are matched with the through holes 6.

[0024] Reference Figure 4 The threaded hole 8 facilitates the engagement with the external thread 10 of the limit rod 9, providing a fastening force to ensure the service life of the V-shaped tool holder 3 during tool operation.

[0025] A limiting rod 9 is movably installed inside the through hole 6. The end of the surface of the limiting rod 9 is provided with an external thread 10, which is adapted to the internal thread of the threaded hole 8.

[0026] Reference Figure 3 The limiting rod 9 facilitates the use of the through hole 6 to limit the V-shaped tool bar 3, further ensuring the stability of the tool bar 3 during operation. The external thread 10 facilitates the use of the internal thread of the threaded hole 8 to fix the limiting rod 9, thereby achieving the purpose of transmitting preload.

[0027] The limit rod 9 is fixedly installed with the head 11 of the internal hex bolt, and the bottom of the head 11 of the internal hex bolt is fitted onto the surface of the limit rod 9 with a spring washer 12.

[0028] Reference Figure 3 The head 11 of the internal hex bolt facilitates the application of a large torque with an internal hex wrench to achieve reliable fastening, while the spring washer 12 facilitates the compensation of preload relaxation caused by cutting vibration through elastic deformation, preventing the bolt from loosening.

[0029] Working principle: When using this device, the V-shaped cutter bar 3 moves inside the V-groove 2 until it extends to the designated position. Then, an internal hex wrench is inserted into the hexagonal hole of the head of the internal hex bolt 11. The head of the internal hex bolt 11 drives the limiting rod 9 to rotate. The external thread 10 engages with the threaded hole 8, and the limiting rod 9, in conjunction with the through hole 6, limits the V-shaped cutter bar 3.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A special cutting tool for large depth of cut with narrow end face groove, characterized in that: Includes a tool holder (1); a V-shaped groove (2) is provided on the top of the front of the tool holder (1), a V-shaped tool bar (3) is fixedly installed inside the V-shaped groove (2), the V-shaped tool bar (3) is adapted to the cross-section of the V-shaped tool bar (3), an alloy blade (4) is fixedly installed on one side of the top of the V-shaped tool bar (3), a limiting plate (5) is fixedly installed on one side of the top of the V-shaped groove (2), through holes (6) are provided on both sides of the top of the limiting plate (5), and several positioning holes (7) are provided on the other side of the top of the V-shaped tool bar (3).

2. The special cutting tool for a narrow groove on the end face with a large depth of cut according to claim 1, characterized in that: The inner wall at the bottom of the V-groove (2) is provided with several threaded holes (8), and the positions of the threaded holes (8) are adapted to the through holes (6).

3. A special cutting tool for a narrow groove on the end face with a large depth of cut according to claim 2, characterized in that: A limiting rod (9) is movably installed inside the through hole (6). The end of the surface of the limiting rod (9) is provided with an external thread (10), which is adapted to the internal thread of the threaded hole (8).

4. A special cutting tool for a narrow groove on the end face with a large depth of cut according to claim 3, characterized in that: The limiting rod (9) is fixedly installed with the head (11) of the internal hexagon bolt, and the bottom of the head (11) of the internal hexagon bolt and the surface of the limiting rod (9) have a spring washer (12).

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