Mandrel with protection function

Abstract

The utility model belongs to the technical field of mandrels, and particularly relates to a mandrel with a protection function, which comprises a mandrel body, two ends of the mandrel body are provided with mandrel ends, the end face of the mandrel body is provided with a first anti-collision part, the first anti-collision part is used for protecting the two ends of the mandrel body, the end face of each mandrel end is provided with a second anti-collision part, and the second anti-collision part is used for protecting the two ends of the mandrel body. The second anti-collision part is used for protecting two sections of the shaft end, and the first anti-collision part comprises a first elastic sleeve which is connected to the surface of the end of the shaft body in a sleeving mode and makes close contact with the shaft body; the end face of the shaft body is protected through the arranged first anti-collision part, it is effectively guaranteed that the end face of the shaft body cannot be damaged due to external collision in the use process, the end face of the shaft end is effectively protected through the arranged second anti-collision part, and the situation that when the shaft end is used, the end face of the shaft end cannot be damaged due to external collision is avoided. And the situation that the shaft end is damaged due to scratching, and then normal use of the whole structure is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of core shafts, in particular to a core shaft with a protective function. Background Art

[0002] A mandrel, also called a spindle, is a shaft that can support rotating parts and is used for rotating operations on machine tools or equipment. Depending on whether the shaft is subjected to force during operation, the mandrel can be divided into a rotating mandrel and a fixed mandrel. The rotating mandrel is subjected to torque during operation, while the fixed mandrel is used to position the parts. The mandrel is mainly used for positioning, supporting and transmitting torque. They are an important part of machine tools and are used to ensure the accurate position and stability of the workpiece for various processing operations. There are many ways to classify the mandrel, among which they can be divided into solid mandrels, hollow mandrels and stepped mandrels according to the structure. According to the force conditions, they can be divided into fixed mandrels, rotating mandrels and floating mandrels. The fixed mandrel cannot move during operation and is mainly used for positioning. The design and manufacturing accuracy of the mandrel have an important impact on the processing quality of the workpiece, production efficiency and the service life of the machine tool. When the mandrel is used, it is easy to cause damage to its force due to collision, which in turn affects the normal use of the mandrel. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a core shaft with a protective function to more accurately solve the problems raised in the above background technology.

[0004] The utility model is realized by the following technical solutions:

[0005] The utility model proposes a core shaft with a protective function, comprising a shaft body, shaft ends are installed at both ends of the shaft body, an anti-collision part one is arranged at the end surface of the shaft body, the anti-collision part one is used to protect the two ends of the shaft body, an anti-collision part two is arranged at the end surface of the shaft end, the anti-collision part two is used to protect the two sections of the shaft end, the anti-collision part one comprises an elastic sleeve one which is sleeved on the end surface of the shaft body and is in close contact with the shaft end surface, an L-shaped sleeve one is installed at the end of the elastic sleeve one, and an L-shaped sleeve two which can be inserted into and slidably connected is installed between the L-shaped sleeves one.

[0006] Preferably, the second anti-collision part comprises an anti-scratch sleeve installed on the end surface of the shaft end, and an elastic sleeve second is installed on the end of the anti-scratch sleeve, and the elastic sleeve second is in contact with the end surface of the shaft end.

[0007] Preferably, an anti-bending portion is provided at the connection between the shaft body and the shaft end, and the anti-bending portion is used to protect the connection.

[0008] Preferably, the anti-bending portion includes a mounting plate in contact with the end surface of the shaft body, a connecting spring is mounted on the side of the mounting plate, a rubber plate is mounted on the end of the connecting spring, and the rubber plate is sleeved on the surface of the shaft end.

[0009] Preferably, a telescopic rod is installed between the mounting plate and the rubber plate, and the connecting spring is sleeved on the surface of the telescopic rod.

[0010] Preferably, an elastic plug rod is installed on one side of the mounting plate located on the shaft body, a plug hole is provided on the shaft body, and the elastic plug rod is inserted into the plug hole and fits tightly with the inner wall of the shaft body.

[0011] Compared with the prior art, the utility model provides a mandrel with a protective function, which has the following

[0012] Beneficial effects:

[0013] The core shaft with a protective function protects the end face of the shaft body by means of the anti-collision part one, which effectively ensures that the end face of the shaft body will not be damaged due to external collision during use. The anti-collision part two is effectively provided to protect the end face of the shaft end, avoiding the situation in which the shaft end is damaged due to scratches when the shaft end is in use, thereby affecting the normal use of the entire structure.

[0014] The core shaft with a protective function prevents bending at the connection between the shaft body and the shaft end by means of the anti-bending portion, thereby avoiding bending of the shaft body when the shaft body surface is subjected to force, thereby affecting the use and installation of the entire core shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a mandrel with a protective function proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a mandrel shaft end with a protective function proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the disassembly of the structure of a mandrel with a protective function proposed by the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the bending structure of a mandrel with a protective function.

[0019] In the figure: 1, shaft body; 11, socket; 2, shaft end; 3, anti-collision part one; 31, L-shaped sleeve one; 32, L-shaped sleeve two; 33, elastic sleeve one; 4, anti-collision part two; 41, elastic sleeve two; 42, anti-scratch sleeve; 5, anti-bending part; 51, mounting plate; 52, connecting spring; 53, rubber plate; 54, elastic plug rod; 55, telescopic rod. DETAILED DESCRIPTION

[0020] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0021] Example

[0022] like Figure 1-Figure 4 As shown, a core shaft with a protective function proposed in an embodiment of the utility model includes a shaft body 1, shaft ends 2 are installed at both ends of the shaft body 1, an anti-collision part 3 is arranged at the end surface of the shaft body 1, the anti-collision part 3 is used to protect the two ends of the shaft body 1, an anti-collision part 2 is arranged at the end surface of the shaft end 2, the anti-collision part 24 is used to protect the two sections of the shaft end 2, the anti-collision part 3 includes an elastic sleeve 33 that is sleeved on the end surface of the shaft body 1 and is in close contact with the shaft body 1, an L-shaped sleeve 31 is installed at the end of the elastic sleeve 33, and an L-shaped sleeve 2 32 that can be inserted into and slidably connected is installed between the L-shaped sleeves 31.

[0023] In the utility model, in the use of the entire structure, the anti-collision portion 2 4 is provided to protect the end of the shaft end 2, thereby preventing damage to the shaft end 2 caused by external structures. The anti-collision portion 3 is provided to protect the end surface of the shaft body 1. When protecting, the elastic sleeve 33 is sleeved on the surface of the shaft body 1, especially the elastic structure, so that when it shrinks, the L-shaped sleeve 2 32 and the L-shaped sleeve 1 31 are in close contact with the shaft body 1, thereby effectively playing a protective role, and the L-shaped sleeve 2 32 is inserted into the L-shaped sleeve 1 31, thereby effectively playing a regulating role.

[0024] The second anti-collision part 4 includes an anti-scratch sleeve 42 installed on the end surface of the shaft end 2 , and an elastic sleeve 41 is installed on the end of the anti-scratch sleeve 42 , and the elastic sleeve 41 contacts the end surface of the shaft end 2 .

[0025] In the utility model, when using the anti-collision part 24, the anti-scratch sleeve 42 is provided with an elastic structure, which effectively ensures that the anti-scratch sleeve 42 is tightly connected after being sleeved onto the surface of the shaft end 2. The elastic sleeve 241 is provided to play a protective role, avoiding direct collision between the outside world and the end of the shaft end 2.

[0026] Among them, an anti-bending portion 5 is provided at the connection between the shaft body 1 and the shaft end 2, and the anti-bending portion 5 is used to protect the connection.

[0027] In the utility model, during the use of the entire structure, the anti-bending portion 5 is provided to effectively protect the connection between the shaft body 1 and the shaft end 2, thereby ensuring the stability of the connection.

[0028] The anti-bending portion 5 includes a mounting plate 51 in contact with the end surface of the shaft body 1 , a connecting spring 52 is mounted on the side of the mounting plate 51 , a rubber plate 53 is mounted on the end of the connecting spring 52 , and the rubber plate 53 is sleeved on the surface of the shaft end 2 .

[0029] In the present invention, the rubber plate 53 is pushed by the force, thereby driving the connecting spring 52 to contract, thereby achieving a buffering effect.

[0030] Among them, a telescopic rod 55 is installed between the mounting piece 51 and the rubber plate 53, and the connecting spring 52 is sleeved on the surface of the telescopic rod 55. An elastic plug rod 54 is installed on one side of the mounting piece 51 located on the shaft body 1. A plug hole 11 is opened at the shaft body 1. The elastic plug rod 54 is inserted into the plug hole 11 and fits tightly with the inner wall of the shaft body 1.

[0031] In the utility model, when in use, the elastic plug rod 54 is provided to play a role of installation, which facilitates the disassembly and installation of the entire anti-bending part 5. By inserting the elastic plug rod 54 into the insertion hole 11, since the elastic plug rod 54 is an elastic structure, under the action of its elastic force, the elastic plug rod 54 is stuck in the insertion hole 11, thereby ensuring the installation of the anti-bending part 5. The telescopic rod 55 is provided to play a guiding role, which effectively ensures the stability of the rubber plate 53 when subjected to force.

[0032] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "one embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not used to limit the order of the processes and methods of this specification.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A core shaft with a protective function, comprising a shaft body (1), characterized in that: Axle ends (2) are mounted at both ends of the shaft body (1), and an anti-collision portion (3) is arranged at the end surface of the shaft body (1), and the anti-collision portion (3) is used to protect the two ends of the shaft body (1). An anti-collision portion (4) is arranged at the end surface of the shaft end (2), and the anti-collision portion (4) is used to protect the two ends of the shaft end (2). The anti-collision portion (3) includes an elastic sleeve (33) sleeved on the end surface of the shaft body (1) and in close contact with the shaft body (1), and an L-shaped sleeve (31) is mounted at the end of the elastic sleeve (33), and an L-shaped sleeve (32) that can be inserted into and slidably connected is mounted between the L-shaped sleeves (31).

2. A mandrel with a protective function according to claim 1, characterized in that: The second anti-collision part (4) comprises an anti-scratch sleeve (42) installed on the end surface of the shaft end (2), and an elastic sleeve (41) is installed on the end of the anti-scratch sleeve (42), and the elastic sleeve (41) is in contact with the end surface of the shaft end (2).

3. The mandrel with protective function according to claim 1, characterized in that: An anti-bending portion (5) is provided at the connection between the shaft body (1) and the shaft end (2), and the anti-bending portion (5) is used to protect the connection.

4. A mandrel with a protective function according to claim 3, characterized in that: The anti-bending portion (5) comprises a mounting plate (51) in contact with the end surface of the shaft body (1), a connecting spring (52) is mounted on the side of the mounting plate (51), a rubber plate (53) is mounted on the end of the connecting spring (52), and the rubber plate (53) is sleeved on the surface of the shaft end (2).

5. A mandrel with a protective function according to claim 4, characterized in that: A telescopic rod (55) is installed between the installation sheet (51) and the rubber plate (53), and the connecting spring (52) is sleeved on the surface of the telescopic rod (55).

6. A mandrel with a protective function according to claim 5, characterized in that: The mounting plate (51) is provided with an elastic insertion rod (54) on one side of the shaft body (1); a plug hole (11) is provided on the shaft body (1); the elastic insertion rod (54) is inserted into the plug hole (11) and fits tightly against the inner wall of the shaft body (1).

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