Hard alloy cross-shaped tool bit

Abstract

The utility model discloses a hard alloy cross-shaped tool bit, and relates to the technical field of tool bits. A hard alloy cross-shaped tool bit comprises a cross-shaped tool bit body, a drilling round head is welded to the top end of the cross-shaped tool bit body, four auxiliary tool bit bodies are arranged on the cross-shaped tool bit body, two V-shaped drilling cutting faces are arranged at the tops of the auxiliary tool bit bodies, and a drilling edge is arranged at the joint of the two drilling cutting faces. Guide cutting faces are arranged on the sides, away from the drilling round head, of the two drilling cutting faces, and expanded cutting faces are arranged on the sides, away from the corresponding drilling cutting faces, of the two guide cutting faces. By the adoption of the structure, chips are prevented from being accumulated in a cutting area, so that cutting resistance is reduced, tool abrasion is reduced, cutting efficiency is improved, and meanwhile, due to the fact that friction resistance and cutting temperature in the cutting process are reduced, the quality of the machined surface is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutter heads, in particular to a hard alloy cross cutter head. Background Art

[0002] In the field of metal cutting, carbide tools are widely used in the processing of various materials due to their high hardness, high wear resistance and excellent cutting performance. With the continuous development of mechanical manufacturing technology, higher requirements are placed on the cutting efficiency, durability and processing accuracy of tools.

[0003] Although the traditional cross cutter head has the ability to cut in two directions during the cutting process, it is prone to problems such as increased cutting resistance and increased tool wear due to chip accumulation during the cutting process. These problems not only affect the cutting efficiency, but also shorten the service life of the tool and increase the processing cost. Therefore, we propose a carbide cross cutter head. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a carbide cross cutter head that can solve the problem that during the cutting process of the cross cutter head, the cutting resistance increases and the tool wear intensifies due to the accumulation of waste chips. These problems not only affect the cutting efficiency, but also shorten the service life of the tool and increase the processing cost.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cemented carbide cross cutter head, comprising:

[0006] Cross cutter head, the top of the cross cutter head is welded with a drilling round head, and the cross cutter head is provided with four auxiliary cutter heads;

[0007] Two V-shaped drilling cutting surfaces are provided on the top of the auxiliary cutting head, a drilling edge is provided at the connection of the two drilling cutting surfaces, a guide cutting surface is provided on the side of the two drilling cutting surfaces away from the drilling round head, a guide edge is provided at the connection of the two guide cutting surfaces, an enlarged cutting surface is provided on the side of the two guide cutting surfaces away from the corresponding drilling cutting surface, and an enlarged cutting edge is provided at the connection of the two enlarged cutting surfaces.

[0008] Preferably, a drilling tail edge is provided at the connection between the two drilling cutting surfaces and the corresponding guide cutting surfaces.

[0009] Preferably, corresponding connections of the four auxiliary cutting heads are all provided with V-shaped grooves and chip removal grooves.

[0010] Preferably, side edges are provided at the connections between the four chip removal grooves and the corresponding enlarged cutting surfaces.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The carbide cross cutter head, through the cooperation of the cross cutter head, auxiliary cutter head, V-shaped groove and chip groove, enables the cutter head to effectively guide the flow of chips and avoid the accumulation of chips in the cutting area, thereby reducing cutting resistance, reducing tool wear and improving cutting efficiency. At the same time, since the friction resistance and cutting temperature in the cutting process are reduced, the quality of the machined surface will also be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the chip removal groove structure of the present utility model;

[0016] Figure 3 This is a schematic diagram of the cross cutter head of the present invention from a top view.

[0017] Figure numerals: 1. Cross cutter head; 2. Chip groove; 3. Enlarged cutting surface; 4. Guide edge; 5. V-shaped groove; 6. Drilling round head; 7. Drilling cutting surface; 8. Drilling edge; 9. Drilling tail edge; 10. Guide cutting surface; 11. Enlarged cutting edge; 12. Side edge; 13. Auxiliary cutter head. DETAILED DESCRIPTION

[0018] 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.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are 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.

[0020] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] See also Figure 1-3 The utility model provides a technical solution: a cemented carbide cross cutter head, comprising:

[0023] A cross cutter head 1, a drilling round head 6 is welded to the top of the cross cutter head 1, and four auxiliary cutter heads 13 are provided on the cross cutter head 1;

[0024] Two V-shaped drilling cutting surfaces 7 are provided on the top of the auxiliary cutting head 13, and a drilling edge 8 is provided at the connection between the two drilling cutting surfaces 7. A guide cutting surface 10 is provided on the side of the two drilling cutting surfaces 7 away from the drilling round head 6, and a guide edge 4 is provided at the connection between the two guide cutting surfaces 10. An enlarged cutting surface 3 is provided on the side of the two guide cutting surfaces 10 away from the corresponding drilling cutting surface 7, and an enlarged cutting edge 11 is provided at the connection between the two enlarged cutting surfaces 3.

[0025] The connections between the two drilling cutting surfaces 7 and the corresponding guide cutting surfaces 10 are each provided with a drilling tail edge 9, the corresponding connections between the four auxiliary cutting heads 13 are each provided with a V-shaped groove 5 and a chip groove 2, and the connections between the four chip grooves 2 and the corresponding enlarged cutting surfaces 3 are each provided with a side edge 12.

[0026] Through the cooperation of the cross cutter head 1, the auxiliary cutter head 13, the V-shaped groove 5 and the chip groove 2, the cutter head can effectively guide the flow of chips and avoid the accumulation of chips in the cutting area, thereby reducing the cutting resistance, reducing tool wear and improving cutting efficiency. At the same time, since the friction resistance and cutting temperature in the cutting process are reduced, the quality of the machined surface will also be significantly improved.

[0027] 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 technical field without departing from the purpose of the present invention.

Claims

1. A carbide cross cutter head, characterized in that: include: A cross cutter head (1), a drilling round head (6) is welded to the top of the cross cutter head (1), and four auxiliary cutter heads (13) are provided on the cross cutter head (1); The top of the auxiliary cutting head (13) is provided with two V-shaped drilling cutting surfaces (7), the connection between the two drilling cutting surfaces (7) is provided with a drilling blade (8), and the two drilling cutting surfaces (7) are provided with a guide cutting surface (10) on the side away from the drilling round head (6); A guide edge (4) is provided at the connection of the two guide cutting surfaces (10), an enlarged cutting surface (3) is provided on the side of the two guide cutting surfaces (10) away from the corresponding drilling cutting surface (7), and an enlarged cutting edge (11) is provided at the connection of the two enlarged cutting surfaces (3).

2. The carbide cross cutter head according to claim 1, characterized in that: The connection points between the two drilling cutting surfaces (7) and the corresponding guide cutting surfaces (10) are both provided with drilling tail blades (9).

3. The cemented carbide cross cutter head according to claim 1, characterized in that: The corresponding connection points of the four auxiliary cutting heads (13) are all provided with V-shaped grooves (5) and chip removal grooves (2).

4. The carbide cross cutter head according to claim 3, characterized in that: Side cutting edges (12) are provided at the connection points between the four chip removal grooves (2) and the corresponding enlarged cutting surfaces (3).

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