A spline shaft positioning tool

Abstract

The utility model discloses a spline shaft positioning frock, including the body, be provided with the axle positioning hole of through on the body, the one side detachable type mounting of axle positioning hole has the coaxial conical fixed gear, the conical fixed gear inside axial through and is provided with the inner fixed tooth, the one end of conical fixed gear smaller diameter is towards axle positioning hole, when assembling the hexagonal head with spline shaft, first will the other end of spline shaft pass through axle positioning hole and insert conical fixed gear inside, and the other end of spline shaft is provided with the outer tooth suitable with inner fixed tooth, and spline shaft is fixed firm, and it is convenient to assemble the hexagonal head with correct moment.

Description

Technical Field

[0001] This utility model relates to the field of mechanical structure technology, and in particular to a spline shaft positioning fixture that facilitates spline shaft assembly. Background Technology

[0002] like Figure 1 As shown, a hexagonal head 1 and a splined shaft 2 need to be assembled. During the assembly process, the hexagonal head 1 is connected to the thread 3 at one end of the splined shaft 2, so the other end of the splined shaft 2 needs to be fixed. Currently, the fixing method is to tighten the other end of the splined shaft 2 with a vise, and then tighten the hexagonal head 1 onto the thread 3 with a torque wrench during assembly. Since the vise uses a flat jaw to clamp the other end of the splined shaft 2, that is, to apply force laterally, the splined shaft 2 sometimes inevitably tilts to both sides during the torque tightening process, which ultimately results in the incorrect torque required for tightening and makes it impossible to assemble correctly.

[0003] Therefore, those skilled in the art are dedicated to developing a splined shaft positioning fixture that can quickly and securely fix the splined shaft. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is to develop a spline shaft positioning fixture that can quickly and firmly fix the spline shaft.

[0005] To achieve the above objectives, this utility model provides a spline shaft positioning fixture, including a body, on which a through shaft positioning hole is provided. A coaxial conical fixed gear is detachably installed on one side of the shaft positioning hole. The conical fixed gear has an internal fixed tooth that is axially penetrated inside, and the smaller diameter end of the conical fixed gear faces the shaft positioning hole.

[0006] Furthermore, the main body is also provided with a square mounting hole for accommodating the conical fixed gear, and the larger diameter end of the conical fixed gear is interference-fitted with the inner wall of the square mounting hole.

[0007] Furthermore, the main body is also provided with a hexagonal head placement hole that communicates with the square mounting hole on one side.

[0008] Furthermore, the main body is provided with screw through holes located at the four corners respectively.

[0009] The beneficial effects of this utility model are as follows: The splined shaft positioning fixture of this utility model includes a body, on which a through shaft positioning hole is provided. A coaxial conical fixed gear is detachably installed on one side of the shaft positioning hole. The conical fixed gear has an internal fixed tooth that is axially penetrated inside. The smaller diameter end of the conical fixed gear faces the shaft positioning hole. When assembling the hexagonal head and the splined shaft, the other end of the splined shaft is first inserted into the conical fixed gear after passing through the shaft positioning hole. The other end of the splined shaft is provided with an external tooth that matches the internal fixed tooth. In this way, the splined shaft is firmly fixed, which makes it easy to assemble the hexagonal head with the correct torque. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the assembly structure of the hexagonal head and spline shaft in the background art;

[0011] Figure 2 This is one of the structural schematic diagrams of this utility model;

[0012] Figure 3 This is the second structural schematic diagram of this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and 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 manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] like Figures 1 to 3 As shown, a splined shaft positioning fixture includes a body 9 with a through shaft positioning hole 8. A coaxial conical fixed gear 5 is detachably mounted on one side of the shaft positioning hole 8. The conical fixed gear 5 has an internal fixed tooth 6 that extends axially through its interior. The smaller diameter end of the conical fixed gear 5 faces the shaft positioning hole 8. When assembling the hexagonal head and the splined shaft, the other end of the splined shaft is first inserted into the conical fixed gear after passing through the shaft positioning hole. The other end of the splined shaft has an external tooth 4 that matches the internal fixed tooth 6. This securely fixes the splined shaft, facilitating the assembly of the hexagonal head with the correct torque.

[0015] The main body 9 is also provided with a square mounting hole 7 for accommodating the conical fixed gear 5. The larger diameter end of the conical fixed gear 5 is interference-fitted with the inner wall of the square mounting hole 7. In this way, the conical fixed gear 5 can be easily disassembled and assembled with the square mounting hole 7 by moving up and down due to its conical shape.

[0016] The main body 9 is also provided with a hexagonal head placement hole 10 that is connected to the square mounting hole 7 on one side, which can be used to temporarily store the hexagonal head.

[0017] The main body 9 is provided with screw through holes 11 located at the four corners, which facilitates fixing on the worktable, stabilizes the spline shaft positioning fixture, and further ensures the accuracy of the hexagonal head 1 and the spline shaft 2.

[0018] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A splined shaft positioning fixture, characterized in that: Includes a body (9), on which a through shaft positioning hole (8) is provided. A coaxial conical fixed gear (5) is detachably installed on one side of the shaft positioning hole (8). The conical fixed gear (5) has an internal fixed tooth (6) that is axially penetrated inside. The smaller diameter end of the conical fixed gear (5) faces the shaft positioning hole (8).

2. The splined shaft positioning fixture according to claim 1, characterized in that: The main body (9) is also provided with a square mounting hole (7) for accommodating the conical fixed gear (5), and the larger diameter end of the conical fixed gear (5) is interference-fitted with the inner wall of the square mounting hole (7).

3. The splined shaft positioning fixture according to claim 2, characterized in that: The main body (9) is also provided with a hexagonal head placement hole (10) that is connected to the square mounting hole (7) on one side.

4. The splined shaft positioning fixture according to claim 1, characterized in that: The main body (9) is provided with screw through holes (11) located at the four corners respectively.

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