A double-ended inner hole boring tool made of tungsten steel

Abstract

The utility model relates to hardware machining technical field, concretely is a kind of tungsten steel double-end hole boring cutter, this hole boring cutter includes: tool bar, the tool bar includes sword body, two through holes are symmetrically set up on the sword body, and installation platform is set up on the sword body;Blade, the blade is provided with two, and symmetrically distributed with the central axis of tool bar, each blade includes tool holder, the tool holder is set up on the guide surface, and tool holder end part one angle is provided with tool bit, the tool bit is provided with cutting surface one and cutting surface two, and cutting head is formed between cutting surface one and cutting surface two, each the tool holder is set up on the guide surface, and the chip flute is set up between guide surface and tool bit, the chip flute is concave and is set to arc type.The utility model has the advantages of simple structure, reasonable in design, hole boring cutter can be used on both sides, long service life, fixed with double screw hole simultaneously, good stability, the yield of cutting product is high, and it is worth promoting and using.

Description

Technical Field

[0001] This utility model relates to the field of hardware processing technology, specifically a tungsten steel double-ended internal boring tool. Background Technology

[0002] A boring tool is a type of boring tool that is an indispensable tool in precision hole machining. It is mainly used for internal hole machining, hole enlargement, and contouring. A boring tool has one or two cutting parts and is a tool specifically designed for roughing, semi-finishing, or finishing existing holes.

[0003] Existing internal boring tools have a relatively complex structure and unreasonable design. They can only be used on one side, resulting in a short service life. In addition, internal boring tools are generally fixed with a single-hole screw. Under heavy cutting conditions, the insert fixed with a single-hole screw will vibrate, resulting in poor stability and a high defect rate of the cut products. Utility Model Content

[0004] The purpose of this utility model is to provide a tungsten carbide double-ended internal boring tool, which has the advantages of simple structure, reasonable design, dual-sided use, long service life, good stability and high yield of cut products by using double screw holes, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tungsten steel double-headed internal boring tool, comprising: a tool shank, the tool shank including a tool body, the tool body having two through holes symmetrically formed thereon, and a mounting platform formed thereon;

[0006] The blade has two blades, which are symmetrically distributed around the central axis of the blade holder. Each blade includes a blade holder with a guide surface and a blade head at one corner of the blade holder. The blade head has a first cutting surface and a second cutting surface, and a cutting head is formed between the first cutting surface and the second cutting surface.

[0007] Preferably, each of the tool holders is provided with a guide surface, and a chip removal groove is formed between the guide surface and the tool head. The chip removal groove is concave and arc-shaped.

[0008] Preferably, the guide surface is inclined, and the side of the cutter holder away from the cutter bar that faces the guide surface has a beveled surface, which is inclined and in contact with the second cutting surface.

[0009] Preferably, the cutting head is arc-shaped, and the first cutting surface and the second cutting surface form an angle between them, with the angle value between 32° and 46°.

[0010] Preferably, one end of the chip removal groove is flush with the end of the tool holder, and the groove direction of the chip removal groove is C-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model provides a tungsten steel double-headed internal boring tool. The internal boring tool includes (1, he(2) and has a simple and reasonable overall structure. It has two blades, which are symmetrically distributed around the central axis of the tool holder. Each blade includes a tool holder with a guide surface and a cutting head at one corner of the tool holder. It is fixed by double screws, which provides good stability. When one cutting head wears out, the other cutting head can be replaced, thereby extending the service life of the tool and making it highly practical.

[0013] 2. In this utility model, the cutting head is provided with a first cutting surface and a second cutting surface, and a cutting head is formed between the first cutting surface and the second cutting surface. Each cutting head is provided with a guide surface, and a chip removal groove is provided between the guide surface and the cutting head. The chip removal groove is concave and arc-shaped. During operation, the chip removal groove with an arc-shaped vertical section and a C-shaped groove direction can discharge waste chips in time during processing, avoiding the accumulation of waste chips and the phenomenon of affecting hardware processing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0016] Figure 3 This is a bottom view of the structure of this utility model;

[0017] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0018] Figure 5 This utility model Figure 2 Enlarged schematic diagram of the structure at point B;

[0019] Figure 6 This utility model Figure 3 Enlarged schematic diagram of the structure at point C;

[0020] Figure 7 This is a schematic diagram illustrating the processing of this utility model.

[0021] The reference numerals and names in the figure are as follows:

[0022] 1. Tool holder; 11. Tool body; 12. Through hole; 13. Mounting platform; 2. Blade; 21. Tool holder; 22. Guide surface; 23. Tool head; 231. Cutting surface one; 232. Cutting surface two; 233. Cutting head; 24. Chip removal groove; 25. Beveled surface. Detailed Implementation

[0023] 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.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] Please see Figures 1 to 6 One embodiment of this utility model is a tungsten carbide double-ended internal boring tool, comprising:

[0027] The tool holder 1 includes a tool body 11, on which two through holes 12 are symmetrically opened, and a mounting platform 13 is provided on the tool body 11;

[0028] Two blades 2 are provided and symmetrically distributed around the central axis of the blade holder 1. Each blade 2 includes a blade holder 21, on which a guide surface 22 is provided, and a blade head 23 is provided at one corner of the end of the blade holder 21. The blade head 23 is provided with a first cutting surface 231 and a second cutting surface 232, and a cutting head 233 is formed between the first cutting surface 231 and the second cutting surface 232. Each blade holder 21 is provided with a guide surface 22, and a chip removal groove 24 is provided between the guide surface 22 and the blade head 23. The chip groove 24 is recessed and arc-shaped, the guide surface 22 is inclined, and the end of the cutter holder 21 away from the cutter bar 1 is provided with a beveled surface 25 on the side facing the guide surface 22. The beveled surface 25 is inclined and contacts the second cutting surface 232. The cutting head 233 is arc-shaped, and the first cutting surface 231 and the second cutting surface 232 form an angle between them. The angle value is between 32° and 46°. One end of the chip discharge groove 24 is flush with the end of the cutter holder 21, and the groove direction of the chip discharge groove 24 is C-shaped.

[0029] Please see Figure 7 In this utility model, the internal boring tool is installed by the mounting platform 13 contacting the mounting base and being fixed through two through holes 12. During operation, the cutting head 233 on the tool holder 21 contacts the workpiece 3 to perform cutting. The processed chips are guided and discharged by the chip discharge groove 24 to avoid accumulation at the cutting point and affecting the cutting quality.

[0030] 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 tungsten steel double-end internal hole boring cutter characterized by, include: The tool holder (1) includes a tool body (11), which has two through holes (12) symmetrically opened on the tool body (11) and an installation platform (13) is provided on the tool body (11); Blade (2), two blades (2) are provided and are symmetrically distributed around the central axis of the blade holder (1). Each blade (2) includes a blade holder (21). The blade holder (21) has a guide surface (22) and a blade head (23) is provided at one corner of the end of the blade holder (21). The blade head (23) has a first cutting surface (231) and a second cutting surface (232). A cutting head (233) is formed between the first cutting surface (231) and the second cutting surface (232).

2. A tungsten steel double-end bore cutter according to claim 1, wherein: Each of the tool holders (21) is provided with a guide surface (22), and a chip removal groove (24) is provided between the guide surface (22) and the tool head (23). The chip removal groove (24) is concave and arc-shaped.

3. The double-end bore cutter of claim 1 wherein: The guide surface (22) is inclined, and the end of the knife holder (21) away from the knife bar (1) is provided with a beveled surface (25) on the side facing the guide surface (22). The beveled surface (25) is inclined and contacts the second cutting surface (232).

4. The tungsten steel double-end bore cutter according to claim 1, wherein: The cutting head (233) is arc-shaped, and an angle is formed between the first cutting surface (231) and the second cutting surface (232), with the angle value between 32° and 46°.

5. The tungsten steel double-end bore cutter according to claim 2, wherein: One end of the chip removal groove (24) is flush with the end of the tool holder (21), and the groove direction of the chip removal groove (24) is C-shaped.

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