Pipe angle grinder

Abstract

The utility model discloses a kind of round tube angle grinder, including shell, the sand wheel of "V" shape setting is embedded in shell, sand wheel is locked by the locking cap of its rear and shell thread cooperation, the sand wheel is equipped with the inner taper surface for grinding the outer circle edge angle of round tube and the outer taper surface for polishing the inner hole edge angle of round tube;Sand wheel is "V" shape structure, inner taper surface and outer taper surface realize the function that sand wheel satisfies grinding outer circle chamfer and inner hole chamfer simultaneously, utilize the flat position of sand wheel and shell and be set to limit fixed sand wheel and shell, so that it will not relatively rotate, ensure the stability of grinding in use process, locking cap is used to lock fixed sand wheel, recess is set on locking cap to facilitate the disassembly of sand wheel.

Description

Technical Field

[0001] This utility model relates to a grinding tool, and more particularly to a round tube angle grinder. Background Technology

[0002] When cutting shafts or round tubes, the cut edges often have burrs and sharp edges that can easily injure hands and affect usability. The cut edges need to be chamfered and deburred. The usual method is to use tools such as files or sandpaper to grind them, which is inconvenient and can easily damage the workpiece. Reamers and scrapers are also used, but when processing high-hardness workpieces such as steel pipes, carbon fiber pipes, and titanium pipes, the tools are prone to wear and the performance is not good. Utility Model Content

[0003] This invention provides a round tube grinder to overcome the shortcomings of existing technologies, such as poor efficiency in cutting high-hardness tubular workpieces and easy damage to the workpiece.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a round tube angle grinder, including a shell, in which a V-shaped grinding wheel is embedded. The grinding wheel is locked to the shell by a locking cap located behind it in a threaded engagement. The grinding wheel has an outer conical surface for grinding the inner corner of the round tube and an inner conical surface for grinding the outer corner of the round tube.

[0006] Furthermore, the outer shell is in the shape of a cylindrical tube, with knurling on its outer circumference, a countersunk hole in its inner cavity, several flat sections on the inner wall of the countersunk hole, a conical bottom, and an internal thread at the opening of the countersunk hole.

[0007] Furthermore, the grinding wheel includes an outer circle, on which a plurality of grinding wheel flats are provided, the positions of which correspond to the outer shell flats, thereby limiting the outer circle of the grinding wheel. The lower end of the outer circle of the grinding wheel is provided with an outer conical surface corresponding to the cone bottom, and the upper end is provided with a grinding wheel end face, which is provided with an inner conical surface.

[0008] Furthermore, one end of the locking cover is provided with an external thread, the lower end of the external thread is provided with a locking cover end face, the other end is provided with a locking cover outer circle, the outer circle of the locking cover is provided with several grooves for easy disassembly and assembly with tools, and a through hole is provided in the center of the locking cover.

[0009] Furthermore, the external thread is locked to the internal thread, and the end face of the grinding wheel is pressed against the end face of the locking cap.

[0010] Furthermore, the knurling is used to prevent slippage during clamping.

[0011] The beneficial effects achieved by this utility model are as follows: the grinding wheel has a "V" shaped structure, and the outer and inner conical surfaces enable the grinding wheel to simultaneously satisfy the functions of grinding the outer circle chamfer and the inner hole chamfer. The flat part set on the grinding wheel and the outer shell is used to restrict and fix the grinding wheel and the outer shell so that they do not rotate relative to each other, thus ensuring the stability of grinding during use. The locking cover is used to lock and fix the grinding wheel, and the locking cover is provided with a groove to facilitate the disassembly and assembly of the grinding wheel. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is an exploded view of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of the outer shell of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the grinding wheel of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the locking cover of this utility model;

[0017] Figure 5 This is an assembly diagram of the present invention;

[0018] Figure 6 This is a schematic diagram of the working state of this utility model. Figure 1 ;

[0019] Figure 7 This is a schematic diagram of the working state of this utility model. Figure 2 .

[0020] In the diagram: 1. Outer shell; 1.1. Knurled pattern; 1.2. Internal thread; 1.3. Countersunk hole; 1.4. Flat part of outer shell; 1.5. Conical bottom; 2. Grinding wheel; 2.1. End face of grinding wheel; 2.2. Inner conical surface; 2.3. Outer circle of grinding wheel; 2.4. Flat part of grinding wheel; 2.5. Outer conical surface; 3. Locking cap; 3.1. External thread; 3.2. Outer circle of locking cap; 3.3. Groove; 3.4. Through hole; 3.5. End face of locking cap; 4. Round tube. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] Example 1

[0023] like Figures 1-7As shown, a round tube grinder includes a housing 1, in which a V-shaped grinding wheel 2 is embedded and locked to the housing 1 by a locking cover 3 through a threaded engagement. The V-shaped grinding wheel 2 is used to grind the outer circumference and inner hole corners of a round tube 4.

[0024] The outer shell 1 is in the shape of a cylindrical tube, with knurling 1.1 on its outer circumference to prevent slipping. The inner cavity is provided with a countersunk hole 1.3, and the inner wall of the countersunk hole 1.3 is provided with several outer shell flat parts 1.4. The bottom is provided with a conical bottom 1.5, and the opening of the countersunk hole 1.3 is provided with an internal thread 1.2.

[0025] The grinding wheel 2 includes an outer circle 2.3, on which a plurality of grinding wheel flats 2.4 are provided, the positions of which correspond to the outer shell flats 1.4 on the outer shell 1; the lower end of the outer circle 2.3 is provided with an outer conical surface 2.5 corresponding to the conical bottom 1.5, and the upper end is provided with a grinding wheel end face 2.1, inside which an inner conical surface 2.2 is provided.

[0026] One end of the locking cover 3 is provided with an external thread 3.1, the lower end of the external thread 3.1 is provided with a locking cover end face 3.5, the other end is provided with a locking cover outer circle 3.2, the outer circle 3.2 of the locking cover is provided with several grooves 3.3 for easy disassembly and assembly with tools, and a through hole 3.4 is provided in the center of the locking cover 3.

[0027] During assembly, the grinding wheel 2 is inserted into the countersunk hole 1.3 of the outer shell 1, the outer conical surface 2.5 of the grinding wheel 2 is in contact with the conical bottom 1.5 of the outer shell 1, and the flat part 2.4 of the grinding wheel is in contact with the flat part 1.4 of the outer shell; the external thread 3.1 of the locking cover 3 is locked with the internal thread 1.2 of the outer shell 1, and the end face 3.5 of the locking cover presses the end face 2.1 of the grinding wheel.

[0028] Operating method: To chamfer the inner hole of the round tube 4, place the round tube 4 on the outer conical surface 2.5 of the grinder, and rotate the grinder to utilize the grinding characteristics of the grinding wheel 2 to grind and chamfer the inner hole of the round tube 4. To chamfer the outer circle of the round tube 4, place the round tube 4 on the inner conical surface 2.2 of the grinder, and rotate the grinder to utilize the grinding characteristics of the grinding wheel 2 to grind and chamfer the outer circle of the round tube 4.

[0029] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The terminology used in the description of this application is only for describing specific embodiments and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0030] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

Claims

1. A round tube angle grinder, characterized in that, The device includes a housing, in which a V-shaped grinding wheel is embedded. The grinding wheel is locked to the housing by a locking cap located behind it in a threaded engagement. The grinding wheel has an outer conical surface for grinding the inner corner of a round tube and an inner conical surface for grinding the outer corner of the round tube.

2. The round tube angle grinder according to claim 1, characterized in that, The outer shell is cylindrical with knurled patterns on its outer circumference and a countersunk hole in its inner cavity. The inner wall of the countersunk hole has several flat sections on the outer shell, and the bottom is tapered. The opening of the countersunk hole has an internal thread.

3. The round tube angle grinder according to claim 2, characterized in that, The grinding wheel includes an outer circle, on which a plurality of grinding wheel flats are provided. The positions of the grinding wheel flats correspond to the positions of the outer shell flats, which limit the outer circle of the grinding wheel. The lower end of the outer circle of the grinding wheel is provided with an outer conical surface corresponding to the bottom of the cone, and the upper end is provided with a grinding wheel end face. Its inner cavity is provided with an inner conical surface.

4. The round tube angle grinder according to claim 3, characterized in that, One end of the locking cover is provided with an external thread, the lower end of the external thread is provided with a locking cover end face, the other end is provided with a locking cover outer circle, the outer circle of the locking cover is provided with several grooves for easy disassembly and assembly with tools, and a through hole is provided in the center of the locking cover.

5. The round tube angle grinder according to claim 4, characterized in that, The external thread is locked to the internal thread, and the end face of the grinding wheel is pressed by the end face of the locking cover.

6. The round tube angle grinder according to claim 2, characterized in that, The knurling is used to prevent slippage during clamping.

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