Grinding tool for inner hole

Abstract

The utility model relates to the technical field of grinding tools, in particular to an inner hole grinding tool which comprises a grinding sleeve, a through groove is formed in the grinding sleeve, and an adjusting assembly used for adjusting the diameter of the grinding sleeve is arranged in the grinding sleeve. The adjusting assembly comprises a first conical core shaft arranged in the grinding sleeve, a second conical core shaft arranged outside the first conical core shaft in a sleeving mode and located in the grinding sleeve, and an adjusting nut connected to the outer portion of the first conical core shaft in a threaded mode and connected to one end of the second conical core shaft in an abutting mode. The grinding sleeve has the advantages that in actual use, the adjusting nut is rotated to move on the first conical mandrel, so that the second conical mandrel is pushed to move, the grinding sleeve can be expanded, the diameter of the grinding sleeve is increased, and adjustment of the diameter of the grinding sleeve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding tools, in particular to a grinding tool for inner holes. Background Art

[0002] In the field of mechanical manufacturing and precision machining, inner hole grinding is a crucial process. The accuracy and efficiency of inner hole grinding directly affect the quality and production efficiency of the product. However, traditional inner hole grinding tools often have some problems, the most prominent of which is the size fixity of the grinding sleeve.

[0003] At present, most grinding tools on the market use grinding sleeves of fixed sizes. Although this design guarantees the grinding accuracy to a certain extent, it greatly limits its scope of use. In practical applications, since the inner hole sizes of different workpieces vary, fixed-size grinding sleeves often cannot meet diverse processing needs. Once encountering the situation where different sizes of inner holes need to be ground, workers usually need to disassemble the original grinding sleeves and replace them with grinding sleeves of corresponding specifications, which not only increases the complexity of the operation, but also reduces work efficiency;

[0004] In addition, since the replacement of the grinding sleeve requires a certain amount of time and technical operation, it also increases the labor intensity of the workers; at the same time, frequent replacement of the grinding sleeve may also increase the maintenance cost of the equipment grinding sleeve installation site and reduce the service life of the equipment;

[0005] In summary, the problem of fixed size of existing grinding sleeves has brought many challenges in the field of mechanical processing. The development of a grinding tool that can adapt to the grinding needs of inner holes of different sizes has important practical significance and application value. By improving the design of the grinding tool, the operation process can be simplified, work efficiency can be improved, and production costs can be reduced, providing strong support for the development of the mechanical processing industry. Utility Model Content

[0006] In order to solve the above problems, an embodiment of the utility model provides a grinding tool for inner holes, which achieves the purpose of solving the problems raised in the background technology.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a grinding tool for an inner hole, comprising a grinding sleeve, a through groove is opened on the grinding sleeve, and an adjusting component for adjusting the diameter of the grinding sleeve is arranged inside the grinding sleeve; the adjusting component comprises a conical core shaft 1 arranged inside the grinding sleeve, a conical core shaft 2 sleeved on the outside of the conical core shaft 1 and located inside the grinding sleeve, and an adjusting nut threadedly connected to the outside of the conical core shaft 1 and abutting against one end of the conical core shaft 2.

[0008] As a further improvement of the above technical solution:

[0009] A cavity communicating with the through groove is arranged between the first conical core shaft and the second conical core shaft.

[0010] The external thread of the conical mandrel 1 is connected with an extrusion nut.

[0011] A second gasket is arranged on one side of the extrusion nut, and the diameter of the second gasket is larger than the inner diameter of the grinding sleeve.

[0012] A gasket one is arranged between the adjusting nut and the conical core shaft two.

[0013] The beneficial effects of the embodiments of the utility model are:

[0014] In actual use, by rotating the adjusting nut, the adjusting nut moves on the conical core shaft 1, thereby pushing the conical core shaft 2 to move, the grinding sleeve can be expanded, thereby increasing the diameter of the grinding sleeve and realizing the adjustment of the diameter of the grinding sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model at AA.

[0017] In the figure: 1. grinding sleeve; 2. through groove; 3. adjustment component; 31. conical mandrel 1; 32. conical mandrel 2; 33. adjustment nut; 4. extrusion nut; 5. cavity; 6. gasket 1; 7. gasket 2. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0019] See also Figure 1 to Figure 2 The embodiment of the utility model discloses a grinding tool for inner holes, comprising a grinding sleeve 1, a through groove 2 is provided on the grinding sleeve 1, and an adjusting component 3 for adjusting the diameter of the grinding sleeve 1 is arranged inside the grinding sleeve 1;

[0020] The adjustment assembly 3 includes a tapered mandrel 1 31 disposed inside the grinding sleeve 1, a tapered mandrel 2 32 sleeved outside the tapered mandrel 1 31 and located inside the grinding sleeve 1, and an adjustment nut 33 threadedly connected to the outside of the tapered mandrel 1 31 and abutting against one end of the tapered mandrel 2 32; the tapered mandrel 1 31 is tilted toward the tapered mandrel 2 32, and the tapered mandrel 2 32 is tilted toward the tapered mandrel 1 31;

[0021] In actual use, by rotating the adjusting nut 33, the adjusting nut 33 moves on the conical core shaft 1 31, thereby pushing the conical core shaft 2 32 to move, the grinding sleeve 1 can be inflated, thereby increasing the diameter of the grinding sleeve 1, and adjusting the diameter of the grinding sleeve 1.

[0022] As a further illustration of this application:

[0023] A cavity 5 communicating with the through groove 2 is provided between the conical core shaft 1 31 and the conical core shaft 2 32;

[0024] In actual use, the grinding paste is added into the cavity 5. As the grinding sleeve 1 rotates, the grinding paste seeps out from the through groove 2, so that the grinding paste is evenly distributed on the inner hole, thereby improving the grinding effect.

[0025] As a further illustration of this application:

[0026] The external thread of the conical core shaft 31 is connected with an extrusion nut 4. When the grinding sleeve 1 needs to be removed, the grinding sleeve 1 can be pushed to move on the conical core shaft 31 by rotating the extrusion nut 4.

[0027] As a further illustration of this application:

[0028] A gasket 2 7 is provided on one side of the extrusion nut 4 . The diameter of the gasket 2 7 is larger than the inner diameter of the grinding sleeve 1 . When the extrusion nut 4 is rotated, the grinding sleeve 1 is pushed to move by the gasket 2 7 .

[0029] As a further illustration of this application:

[0030] A gasket 6 is provided between the adjusting nut 33 and the conical core shaft 2 32 to facilitate the rotation of the adjusting nut 33 and prevent the nut from loosening.

[0031] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0034] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A grinding tool for inner holes, characterized in that: The invention comprises a grinding sleeve (1), wherein a through groove (2) is provided on the grinding sleeve (1), and an adjusting component (3) for adjusting the diameter of the grinding sleeve (1) is arranged inside the grinding sleeve (1); The adjustment assembly (3) comprises a conical core shaft (31) arranged inside the grinding sleeve (1), a conical core shaft (32) sleeved outside the conical core shaft (31) and located inside the grinding sleeve (1), and an adjustment nut (33) threadedly connected to the outside of the conical core shaft (31) and abutting against one end of the conical core shaft (32).

2. The grinding tool for inner holes according to claim 1, characterized in that: A cavity (5) connected to the through groove (2) is provided between the first conical core shaft (31) and the second conical core shaft (32).

3. The inner hole grinding tool according to claim 1, characterized in that: The external thread of the conical core shaft (31) is connected with an extrusion nut (4).

4. The grinding tool for inner holes according to claim 3, characterized in that: A second gasket (7) is provided on one side of the extrusion nut (4), and the diameter of the second gasket (7) is larger than the inner diameter of the grinding sleeve (1).

5. The grinding tool for inner holes according to claim 1, characterized in that: A gasket 1 (6) is arranged between the adjusting nut (33) and the conical core shaft 2 (32).

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