M-shaped indexable multifunctional grooving blade

Abstract

The utility model provides an M-shaped indexable multifunctional grooving blade. The M-shaped indexable multifunctional grooving blade comprises a blade body, the blade base body is used as a base of the blade; the main cutting blades are arranged on the two sides of the blade base body, each main cutting blade tooth is composed of two inverted and inclined V-shaped cutting parts, two tooth tips of the main cutting blades are formed in the middles of the V-shaped cutting parts, and the machining directions of the two main cutting blades are opposite; the blade can be used for turning an inner circle or an outer circle and cutting a groove, is wide in application, small in resistance, simple in structure, not prone to interference, high in product machining precision and low in blade manufacturing cost, can be matched with inner hole or outer circle cutter bars of different sizes, and can achieve one-time synchronous forming machining of inner holes and inner grooves of different diameters and outer circle and outer groove products. And moreover, the blade can be directly matched with an existing cutter bar in the market for use, so that the purposes of improving the production efficiency and reducing the production cost are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of cutting blades, in particular to an M-shaped indexable multifunctional grooving blade. Background Art

[0002] At present, the design of grooving inserts on the market is mainly aimed at traditional grooving processing. Grooving inserts can only complete grooving, and cannot simultaneously complete the processing of inner holes and inner grooves or outer circles and outer grooves with one insert.

[0003] The existing grooving blades on the market have high resistance in their cutting edge design, and cannot achieve efficient processing by moving back and forth through CNC program control. Especially when it is necessary to process some inner holes or outer circles with large height differences such as concave in the middle and convex on both sides or concave on both sides and convex in the middle, products need to be processed synchronously. Due to the interference caused by the blade angle design, manual sharpening or installation of tools with multiple angles is still used to complete the cutting process. This is not only inefficient and complicated, but also difficult to control product precision and affects product quality.

[0004] In summary, the utility model provides an M-shaped indexable multifunctional grooving insert to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an M-shaped indexable multifunctional grooving blade to solve the problems that the existing technology uses manual sharpening or installation of tools with multiple angles to complete cutting processing. This is not only inefficient, the process is complicated, it is difficult to control the product precision, and affects the product quality.

[0006] An M-shaped indexable multifunctional grooving insert, comprising:

[0007] Blade base: serves as the base of the blade;

[0008] Main cutting blade: arranged on both sides of the blade base, each main cutting tooth is composed of two inverted and inclined "V"-shaped cutting parts, the middle part of the "V"-shaped cutting part forms two tooth tips of the main cutting blade, the two main cutting blades have opposite processing directions, and the main cutting blade is provided with two corresponding cutting top surfaces and cutting bottom surfaces;

[0009] Cutting part: One end of two "V"-shaped cutting parts are close to each other;

[0010] V-shaped middle groove: It is the connection between the two "V"-shaped cutting parts, which reduces the cutting resistance of the cutting parts. The "V" center line of the V-shaped middle groove intersects with the cutting top surface and cutting bottom surface of the main cutting blade, so that the cutting top surface and cutting bottom surface of the main cutting blade are in an "M" shape structure;

[0011] Positioning piece: A fixing method that uses one of the following methods: opening a positioning groove or installing a positioning screw hole.

[0012] Furthermore, the blade substrate is made of either cemented carbide or metal ceramic powder pressed into shape.

[0013] Furthermore, the “V”-shaped cutting portion is arranged to be inclined so that the surface area of ​​the cutting top surface of the main cutting blade is larger than the surface area of ​​the cutting bottom surface.

[0014] Furthermore, the main cutting edge, the main flank surface, the secondary cutting edge and the secondary flank surface of the two main cutting blades are all provided with a cutting back angle.

[0015] Furthermore, the two tooth tips are arc-shaped structures with different arc sizes.

[0016] Furthermore, the surfaces of the two main cutting blades are provided with chip grooves, and the chip grooves are located on the surface of the cutting top surface.

[0017] Furthermore, the positioning piece is provided in the middle of the blade base.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. In the utility model, the blade can not only turn the inner circle or outer circle, but also cut grooves. It has a wide range of uses and low resistance, a simple structure, is not easy to interfere, has high precision in processed products, and has low manufacturing cost. It can be matched with inner hole or outer circle tool bars of different sizes to achieve one-time synchronous forming processing of inner holes and inner grooves of different diameters, as well as outer circle and outer groove products, and can be controlled by CNC program to move back and forth for efficient cutting processing. In addition, the blade can be directly used with existing tool bars on the market to achieve the purpose of improving production efficiency and reducing production costs.

[0020] 2. The utility model sets the arcs of the two tooth tips to different sizes to enhance the cutting strength of the tool tip and extend the service life of the tool tip. The design of the V-shaped middle groove reduces the cutting resistance of the main cutting blade. The design of the two main cutting blades can realize mobile complementary cutting and can also perform back and forth processing. The chip removal groove is set to facilitate chip removal and chip breaking of the blade during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a three-dimensional Figure 1 ;

[0022] Figure 2 The utility model is a three-dimensional Figure 2 ;

[0023] Figure 3 It is a top view schematic diagram of the utility model;

[0024] Figure 4 It is a front view schematic diagram of the utility model;

[0025] Figure 5 It is a side view schematic diagram of the utility model.

[0026] In the figure:

[0027] 1. Blade base; 2. Main cutting blade; 3. Cutting part; 4. V-shaped middle groove; 5. Positioning piece; 6. Chip groove; 7. Cutting top surface; 8. Cutting bottom surface. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] like Figure 1-5 As shown, the utility model provides an M-shaped indexable multifunctional grooving insert, comprising:

[0030] Blade base 1: as the base of the blade;

[0031] Main cutting blade 2: arranged on both sides of the blade base 1, each main cutting tooth 2 is composed of two inverted and inclined "V"-shaped cutting parts 3, the middle part of the "V"-shaped cutting part 3 forms two tooth tips of the main cutting blade 2, the two main cutting blades 2 have opposite processing directions, and the main cutting blade 2 is provided with two corresponding cutting top surfaces 7 and cutting bottom surfaces 8;

[0032] Cutting part 3: one end of two "V"-shaped cutting parts 3 are close to each other;

[0033] V-shaped middle groove 4: It is the connection between the two “V”-shaped cutting parts 3, which reduces the cutting resistance of the cutting part 3. The “V”-shaped middle line of the V-shaped middle groove 4 intersects with the cutting top surface 7 and the cutting bottom surface 8 of the main cutting blade 2, so that the cutting top surface 7 and the cutting bottom surface 8 of the main cutting blade 2 are in an “M”-shaped structure;

[0034] Positioning member 5: A fixing method using one of the following methods: providing a positioning groove or installing a positioning screw hole.

[0035] As an implementation mode of the present utility model, the blade substrate 1 is made of cemented carbide or metal ceramic powder pressed into shape.

[0036] As an embodiment of the present invention, the “V”-shaped cutting portion 3 is tilted so that the surface area of ​​the cutting top surface 7 of the main cutting insert 2 is larger than the surface area of ​​the cutting bottom surface 8 .

[0037] As an implementation mode of the present utility model, the main cutting edge, the main clearance face, the secondary cutting edge and the secondary clearance face of the two main cutting blades 2 are all provided with a cutting clearance angle.

[0038] As an implementation mode of the utility model, the two tooth tips are arc-shaped structures with different arc sizes.

[0039] As an embodiment of the present invention, the surfaces of the two main cutting blades 2 are provided with chip grooves 6, and the chip grooves 6 are located on the surface of the cutting top surface.

[0040] As an implementation mode of the present utility model, the positioning member 5 is provided in the middle of the blade base 1 .

[0041] Example:

[0042] Use carbide coated blades;

[0043] The parameters of the blade are: width 4.9mm, tip arc R0.4mm;

[0044] The maximum cutting depth of the blade is set to 0.8mm;

[0045] Processed product: outer diameter 48; material is 45# steel.

[0046] Experimental parameters 1: machine speed 1300r / min, single-side cutting depth 0.5mm, feed F0.3, cutting length 71mm, move the tool back and forth 10 times, the blade cutting sound is normal, after processing is completed, magnify 50 times to check that the blade is not damaged and can continue to be used.

[0047] Experimental parameters 2: machine speed 900r / min, single-side cutting depth 0.75mm, feed F0.4, cutting length 71mm, moving back and forth 10 times, the blade cutting sound is normal, and chip removal is smooth.

[0048] After processing, magnify 50 times to check if the blade is damaged and it can continue to be used.

[0049] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An M-shaped indexable multifunctional grooving insert, characterized in that: include; Blade base (1): serves as the base of the blade; Main cutting blades (2): arranged on both sides of the blade base (1), each main cutting blade (2) is composed of two inverted and inclined "V"-shaped cutting parts (3), the middle of the "V"-shaped cutting parts (3) form two tooth tips of the main cutting blade (2), the two main cutting blades (2) have opposite processing directions, and the main cutting blade (2) is provided with two corresponding cutting top surfaces (7) and cutting bottom surfaces (8); Cutting portion (3): one end of two "V"-shaped cutting portions (3) are close to each other; The V-shaped middle groove (4) is a connection point between the two "V"-shaped cutting parts (3) to reduce the cutting resistance of the cutting parts (3); the "V"-shaped center line of the V-shaped middle groove (4) intersects with the cutting top surface (7) and the cutting bottom surface (8) of the main cutting blade (2), so that the cutting top surface (7) and the cutting bottom surface (8) of the main cutting blade (2) are in an "M"-shaped structure; Positioning member (5): A fixing method is adopted, which is to provide a positioning groove or install a positioning screw hole.

2. The M-shaped indexable multifunctional grooving insert as claimed in claim 1, characterized in that: The blade substrate (1) is made of either a hard alloy material or a metal ceramic powder pressed into shape.

3. The M-shaped indexable multifunctional grooving insert as claimed in claim 1, characterized in that: The "V"-shaped cutting portion (3) is arranged at an angle, so that the surface area of ​​the cutting top surface (7) of the main cutting blade (2) is larger than the surface area of ​​the cutting bottom surface (8).

4. The M-shaped indexable multifunctional grooving insert as claimed in claim 1, characterized in that: The main cutting edge, main flank surface, secondary cutting edge and secondary flank surface of the two main cutting blades (2) are all provided with a cutting back angle.

5. The M-shaped indexable multifunctional grooving insert as claimed in claim 1, characterized in that: The two tooth tips are arc-shaped structures with different arc sizes.

6. The M-shaped indexable multifunctional grooving insert as claimed in claim 1, characterized in that: The surfaces of the two main cutting blades (2) are provided with chip grooves (6), and the chip grooves (6) are located on the surface of the cutting top surface (7).

7. The M-shaped indexable multifunctional grooving insert as claimed in claim 1, characterized in that: The positioning piece (5) is arranged in the middle of the blade base (1).

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