Cylindrical clamping tool for shaft body

Abstract

The cylindrical clamping tool comprises a body, an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are fixed to the body through bolts, the upper cover plate is provided with an installation hole, the side face of the installation hole is provided with a first limiting hole and a second limiting hole, and the shaft body comprises a limiting part and a fixing part. A first support lug and a second support lug are arranged on the limiting part, and the shaft body is limited by the mounting hole, the first limiting hole and the second limiting hole of the upper cover plate; the fixed part of the shaft body is connected with the lower cover plate in an inserting and matching manner; the mounting hole, the first limiting hole and the second limiting hole are formed in the upper cover plate, and the first supporting lug and the second supporting lug of the shaft body limiting part can be inserted into the first limiting hole and the second limiting hole, so that one end of the shaft body is limited by the upper cover plate, and then the fixed part of the shaft body is axially limited by the lower cover plate; the bolt is inserted into the insertion hole of the fixing part to prevent the shaft body from rotating, so that the shaft body is stably clamped in the barrel body, and the tool is simple in structure, low in manufacturing cost and convenient to install and operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaft body processing, and in particular relates to a cylindrical clamping tool for a shaft body. Background Art

[0002] During the processing of the shaft, it is usually necessary to go through operations such as turning, welding, grinding and drilling. Some special shafts are difficult to clamp during the processing. Although existing clamping equipment such as vises can clamp the shaft, high-speed rotation or vibration during the processing will cause the shaft to be unstable, and the processing quality and accuracy cannot be guaranteed. In addition, when the surface of the shaft is provided with special-shaped structures, traditional clamping tools cannot be used. Utility Model Content

[0003] The utility model aims to provide a cylindrical clamping tool for a shaft body, which can clamp and fix the shaft body by limiting the position of the shaft body through a cylindrical body, an upper cover plate and a lower cover plate.

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

[0005] A cylindrical clamping tool for a shaft body, comprising a main body, an upper cover plate and a lower cover plate, the main body is a cylindrical structure with upper and lower openings, the upper cover plate and the lower cover plate are fixedly connected to the main body by bolts, a mounting hole is arranged on the upper cover plate, a first limiting hole is arranged on one side of the mounting hole, and a second limiting hole is arranged on the other side of the mounting hole, the mounting hole is connected to the first limiting hole and the second limiting hole, the shaft body comprises a limiting part and a fixing part, the limiting part and the fixing part are respectively arranged at two ends of the shaft body, a first support ear and a second support ear are arranged on the limiting part of the shaft body, the mounting hole, the first limiting hole and the second limiting hole of the upper cover plate cooperate with the limiting part of the shaft body to limit the shaft body; the fixing part of the shaft body and the lower cover plate are plug-fitted and connected.

[0006] Furthermore, an assembly hole is provided at the geometric center position of the lower cover plate, and the fixing portion of the shaft body cooperates with the assembly hole.

[0007] Furthermore, a latch is provided on the main body, and a socket is provided on the fixing portion of the shaft body. The latch passes through the main body and is plug-fittedly connected with the socket of the fixing portion, and the latch is used to fix the shaft body.

[0008] Furthermore, an embedding portion is provided on one side of the upper cover plate, the embedding portion is protrudingly provided, a positioning portion is provided on the inner wall of the main body at the opening position, and after the upper cover plate is buckled into the main body, the positioning portion abuts against the embedding portion, and the end of the main body abuts against the edge of the upper cover plate.

[0009] Furthermore, the side wall of the body is provided with at least one clamping surface, and the clamping surface is arranged lower than the surface of the body.

[0010] Furthermore, the clamping surface of the main body is provided with a plurality of V-shaped grooves arranged in parallel.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] In the utility model, an upper cover plate and a lower cover plate are respectively provided at the upper and lower ends of the main body. By arranging a mounting hole, a first limiting hole and a second limiting hole on the upper cover plate, the first support ear and the second support ear of the shaft body limiting part can be inserted into the first limiting hole and the second limiting hole, so that the upper cover plate limits one end of the shaft body, and then the lower cover plate is used to axially limit the fixing part of the shaft body. The insertion of the pin into the insertion hole of the fixing part can prevent the shaft body from rotating, so that the shaft body is clamped firmly in the cylinder. The tooling structure is simple, the manufacturing cost is low, and the installation operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a structural schematic diagram of the cylindrical clamping tooling of the shaft body of the utility model.

[0015] Figure 2 It is an exploded view of the cylindrical clamping tooling of the shaft body of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the central axis body of the utility model.

[0017] Among them: 1-main body, 11-clamping surface, 2-upper cover, 21-mounting hole, 22-first limiting hole, 23-second limiting hole, 24-embedded part, 3-lower cover, 31-assembly hole, 4-latch pin, 5-axis body, 51-limiting part, 511-first support ear, 512-second support ear, 52-fixing part, 53-axis rod part. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0019] Embodiment 1:

[0020] The main structure of the present invention is a cylindrical clamping fixture for the shaft body, such as Figure 1 and Figure 3 As shown, it includes a body 1, an upper cover plate 2 and a lower cover plate 3, the body 1 is a cylindrical structure with upper and lower openings, the upper cover plate 2 and the lower cover plate 3 are fixedly connected to the body 1 by bolts, the upper cover plate 2 is provided with a mounting hole 21, one side of the mounting hole 21 is provided with a first limiting hole 22, the other side of the mounting hole 21 is provided with a second limiting hole 23, the mounting hole 21 is connected with the first limiting hole 22 and the second limiting hole 23, the shaft body 5 includes a limiting portion 51 and a fixing portion 52, the limiting portion 51 and the fixing part 52 are respectively arranged at both ends of the shaft body 5, the limiting part 51 of the shaft body 5 is provided with a first ear 511 and a second ear 512, the mounting hole 21, the first limiting hole 22 and the second limiting hole 23 of the upper cover plate 2 cooperate with the limiting part 51 of the shaft body 5 to limit the shaft body 5; the fixing part 52 of the shaft body 5 is plug-fitted and connected with the lower cover plate 3; the lower cover plate 3 is provided with an assembly hole 31 at the geometric center position, and the fixing part 52 of the shaft body 5 cooperates with the assembly hole 31.

[0021] The shaft body 5 includes a limiting portion 51, a fixing portion 52 and a shaft portion 53, the limiting portion 51 and the fixing portion 52 are respectively arranged at the two ends of the shaft portion 53, the limiting portion 51 is provided with a first ear 511 and a second ear 512, the first ear 511 and the second ear 512 are located on the same horizontal plane, the first ear 511 and the second ear 512 are relatively perpendicular to the surface of the limiting portion 51 of the shaft body 5; the main body 1 of the cylindrical clamping fixture is a cylindrical structure with upper and lower openings, and an upper cover plate 2 and a lower cover plate 3 are respectively arranged at both ends thereof, the diameters of the upper cover plate 2 and the lower cover plate 3 are the same as the diameter of the main body 1, and the upper cover plate 2 and the lower cover plate 3 are fixedly connected to the main body 1 by bolts; a mounting hole 21 is provided on the upper cover plate 2, and the mounting hole 21 is arranged at the geometric center position of the upper cover plate 2, and at the same time, a first limiting hole 22 is arranged on one side of the mounting hole 21, A second limiting hole 23 is provided on the other side of the mounting hole 21. The size of the first limiting hole 22 is larger than that of the second limiting hole 23. The first limiting hole 22, the mounting hole 21 and the second limiting hole 23 are connected to each other. After the shaft body 5 is inserted into the main body 1, the upper cover plate 2 is covered. The first limiting hole 22, the mounting hole 21 and the second limiting hole 23 can cooperate with the first ear 511 and the second ear 512 of the limiting portion 51 of the shaft body 5. The first ear 511 and the second ear 512 are inserted into the first limiting hole 22 and the second limiting hole 23, so that the upper cover plate 2 limits one end of the shaft body 5; an assembly hole 31 is provided on the lower cover plate 3. The assembly hole 31 of the lower cover plate 3 is set at the geometric center position of the lower cover plate 3. The fixing portion 52 of the shaft body 5 can be inserted into the assembly hole 31, so as to further ensure that the shaft body 5 is stable in the main body 1.

[0022] Embodiment 2:

[0023] On the basis of the above embodiments, this embodiment further adds a pin 4, the main body 1 is provided with a pin 4, the fixing portion 52 of the shaft body 5 is provided with a socket, the pin 4 passes through the main body 1 and is plugged and connected with the socket of the fixing portion 52, and the pin 4 is used to fix the shaft body 5; the side wall of the main body 1 is provided with at least one clamping surface 11, and the clamping surface 11 is provided below the surface of the main body 1; the clamping surface 11 of the main body 1 has a plurality of V-shaped grooves arranged in parallel.

[0024] In order to further limit the shaft body 5, a latch 4 is provided on the main body 1, and the latch 4 can pass through the main body 1 and be inserted into the shaft body 5. A plug hole is provided on the surface of the fixing portion 52 of the shaft body 5, and the latch 4 inserted into the plug hole can prevent the shaft body 5 from rotating; at the same time, in order to facilitate the main body 1 to be fixed by external processing equipment, two clamping surfaces 11 are provided on the main body 1. The clamping surface 11 is a planar structure, and the clamping surface 11 is provided on the side wall of the main body 1. The clamping surface 11 is provided with multiple V-shaped grooves, which can increase the friction force and prevent the relative rotation between the main body 1 and the external processing equipment. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0025] Embodiment 3:

[0026] Based on the above embodiment, this embodiment further defines the upper cover plate 2, such as Figure 2 As shown, an embedding portion 24 is provided on one side of the upper cover plate 2, and the embedding portion 24 is protrudingly provided. A positioning portion is provided on the inner wall of the main body 1 at the opening position. After the upper cover plate 2 is buckled into the main body 1, the positioning portion abuts against the embedding portion 24, and the end of the main body 1 abuts against the edge of the upper cover plate 2.

[0027] In order to facilitate the positioning of the upper cover plate 2, a protruding embedding portion 24 is provided on the upper cover plate 2, and the diameter of the embedding portion 24 is smaller than the diameter of the body 1. A positioning portion is provided on the inner wall of the body 1. After the upper cover plate 2 is buckled into the body 1, the embedding portion 24 and the positioning portion abut against each other. At the same time, the end of the body 1 abuts against the edge of the upper cover plate 2, and the upper cover plate 2 is positioned to facilitate the installation of the upper cover plate 2. After the shaft body 5 is inserted into the body 1 and the upper cover plate 2 is covered, the limiting portion 51 of the shaft body 5 is inserted into the mounting hole 21 of the upper cover plate 2. After ensuring that the shaft body 5 is stable, the locking bolt is tightened to fix the upper cover plate 2, and the latch 4 is inserted. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0028] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model 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, and therefore cannot be understood as a limitation on the present utility model.

[0029] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A cylindrical clamping tool for a shaft, characterized in that: The invention comprises a main body, an upper cover plate and a lower cover plate, wherein the main body is a cylindrical structure with upper and lower openings, the upper cover plate and the lower cover plate are fixedly connected to the main body by bolts, a mounting hole is arranged on the upper cover plate, a first limiting hole is arranged on one side of the mounting hole, a second limiting hole is arranged on the other side of the mounting hole, the mounting hole is communicated with the first limiting hole and the second limiting hole, the shaft body comprises a limiting part and a fixing part, the limiting part and the fixing part are respectively arranged at two ends of the shaft body, a first support ear and a second support ear are arranged on the limiting part of the shaft body, the mounting hole, the first limiting hole and the second limiting hole of the upper cover plate cooperate with the limiting part of the shaft body to limit the shaft body; the fixing part of the shaft body and the lower cover plate are plug-fitted and connected.

2. The cylindrical clamping fixture for the shaft body according to claim 1, characterized in that: An assembly hole is arranged at the geometric center of the lower cover plate, and the fixing portion of the shaft body matches with the assembly hole.

3. The cylindrical clamping fixture for the shaft body according to claim 1, characterized in that: The main body is provided with a latch, and the fixing part of the shaft body is provided with a socket. The latch passes through the main body and is plug-fittedly connected with the socket of the fixing part. The latch is used to fix the shaft body.

4. The cylindrical clamping fixture for the shaft body according to claim 1, characterized in that: An embedding portion is provided on one side of the upper cover plate, and the embedding portion is protrudingly provided. A positioning portion is provided on the inner wall of the main body at the opening position. After the upper cover plate is buckled into the main body, the positioning portion abuts against the embedding portion, and the end of the main body abuts against the edge of the upper cover plate.

5. The cylindrical clamping fixture for the shaft body according to claim 1, characterized in that: The side wall of the body is provided with at least one clamping surface, and the clamping surface is arranged lower than the surface of the body.

6. The cylindrical clamping fixture for the shaft body as claimed in claim 5, characterized in that: The clamping surface of the main body is provided with a plurality of V-shaped grooves arranged in parallel.

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