Constant-speed driving shaft rapid positioning and fixing tool with adjusting structure

Abstract

The utility model belongs to the technical field of constant-speed driving shafts, and particularly relates to a constant-speed driving shaft quick positioning and fixing tool with an adjusting structure, which comprises a fixing base and a clamping block positioned in the fixing base, the clamping block is provided with three through holes which are arranged in a circular array and penetrate through the surface of the fixing base, and the through holes are communicated with the adjusting structure. The clamping device comprises a fixed base, a threaded rod is arranged on the fixed base, a clamping block is arranged on the threaded rod, four protruding points are connected to the inner wall of the clamping block, the four protruding points are arranged downwards in the longitudinal direction, and a mounting hole is formed in the surface of the top of the fixed base in a penetrating mode. And then a supporting block is connected with a fixed base, so that a certain distance can be formed between the fixed base and the ground, and the situation that some impurities fall into the fixed base in the machining process of the constant-speed driving shaft, so that cooperation of a threaded rod and the clamping block is affected is avoided; and therefore, the practicability of the quick positioning and fixing tool is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of constant velocity drive shafts, and particularly relates to a rapid positioning and fixing tooling for a constant velocity drive shaft with an adjusting structure. Background Technique

[0002] A constant velocity drive shaft (CVT) is a new technology applied to the automotive transmission system. It realizes the matching of the engine speed and the drive wheel speed through a variable transmission ratio, thereby improving fuel economy and driving smoothness. The constant velocity drive shaft joint is an important component in the automotive transmission system, which transmits the power of the engine to the wheels. The constant velocity drive shaft is mainly applied to passenger cars (including traditional fuel vehicles and new energy vehicles). During the driving process of the vehicle, the wheels will continuously bounce up and down. Therefore, the constant velocity drive shaft joint needs to maintain a stable rotational speed while transmitting power, which requires it to have a certain torsional angle compensation function.

[0003] During the processing of the constant velocity drive shaft, such as in the grinding and cutting processes, it is necessary to fix the constant velocity drive shaft. However, the shaft diameters of the constant velocity drive shafts are different, resulting in the existing fixing devices not meeting the usage requirements. It is necessary to replace the fixing tooling according to the size of the constant velocity drive shaft, which greatly increases the cost of using the fixing tooling. In view of this, we provide a rapid positioning and fixing tooling for a constant velocity drive shaft with an adjusting structure to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rapid positioning and fixing tooling for a constant velocity drive shaft with an adjusting structure, aiming to solve the problem in the prior art that the shaft diameters of the constant velocity drive shafts are different, resulting in the existing fixing devices not meeting the usage requirements, and it is necessary to replace the fixing tooling according to the size of the constant velocity drive shaft, which greatly increases the cost of using the fixing tooling. In view of this, we provide a rapid positioning and fixing tooling for a constant velocity drive shaft with an adjusting structure to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A rapid positioning and fixing tooling for a constant velocity drive shaft with an adjusting structure, including a fixed base and a clamping block located inside the fixed base. The clamping block is provided in three through holes on the surface of the fixed base arranged in a circular array. Convex points are connected to the inner wall of the clamping block, and four convex points are arranged vertically downward. An installation hole is penetrated and opened on the top surface of the fixed base. A threaded rod is threadedly connected inside the fixed base, a convex block is connected to the end of the threaded rod, and a docking hole is opened on the outer side wall of the clamping block.

[0006] Preferably, as a quick positioning and fixing tooling for a constant velocity drive shaft with an adjustment structure of the present utility model, the docking hole is adapted to the size of the convex block and is in a convex shape, and the convex block is connected inside the docking hole.

[0007] Preferably, as a quick positioning and fixing tooling for a constant velocity drive shaft with an adjustment structure of the present utility model, the threaded rod is integrally connected with the convex block, and the clamping block is telescopically connected with the fixed base through the threaded rod.

[0008] Preferably, as a quick positioning and fixing tooling for a constant velocity drive shaft with an adjustment structure of the present utility model, six threaded rods are provided, and every two threaded rods pass through the fixed base and are connected to the outer side wall of the clamping block.

[0009] Preferably, as a quick positioning and fixing tooling for a constant velocity drive shaft with an adjustment structure of the present utility model, a support block is provided at the bottom end of the fixed base, and a threaded groove adapted to the support block is opened at the bottom end of the fixed base.

[0010] Preferably, as a quick positioning and fixing tooling for a constant velocity drive shaft with an adjustment structure of the present utility model, the support block is detachably connected with the fixed base through the threaded groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] Through the cooperation between the threaded rod and the clamping block of the present utility model, the clamping block can be telescoped inside the fixed base, so as to adjust the position of the clamping block to conveniently process constant velocity drive shafts with different shaft diameters. Subsequently, the connection between the support block and the fixed base can keep a certain distance between the fixed base and the ground, avoiding some impurities falling into the fixed base during the processing of the constant velocity drive shaft and affecting the cooperation between the threaded rod and the clamping block, thereby improving the practicability of the quick positioning and fixing tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the main structure of the present utility model viewed from below;

[0016] Figure 3 is a schematic diagram of the disassembled structure of the main body and the threaded rod of the present utility model;

[0017] Figure 4Schematic diagram of the split structure of the main body and the support block of the present utility model.

[0018] In the figure: 1, fixed base; 2, clamping block; 3, bump; 4, mounting hole; 5, threaded rod; 6, convex block; 7, docking hole; 8, support block; 9, thread groove. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] Please refer to Figures 1-4 , the present utility model provides the following technical solutions: A quick positioning and fixing tooling for a constant velocity drive shaft with an adjustment structure, including a fixed base 1 and a clamping block 2 located inside the fixed base 1. The clamping block 2 is provided with three through holes arranged in a circular array and penetrating through the surface of the fixed base 1. The inner wall of the clamping block 2 is connected with bumps 3, and four bumps 3 are arranged longitudinally downward. The top surface of the fixed base 1 is penetrated and provided with a mounting hole 4. A threaded rod 5 is threadedly connected inside the fixed base 1, and the end of the threaded rod 5 is connected with a convex block 6. A docking hole 7 is opened on the outer side wall of the clamping block 2.

[0022] Preferably: The size of the docking hole 7 is adapted to that of the convex block 6 and is in a convex shape, and the convex block 6 is connected inside the docking hole 7.

[0023] Preferably: The threaded rod 5 is integrally connected with the convex block 6, and the clamping block 2 forms a telescopic connection with the fixed base 1 through the threaded rod 5.

[0024] Preferably: Six threaded rods 5 are provided, and every two threaded rods 5 pass through the fixed base 1 and are connected to the outer side wall of the clamping block 2.

[0025] In the embodiment, when the constant velocity drive shaft is being processed and needs to be fixed, at this time, take out the quick positioning and fixing tooling, then take out the bolt and screw it into the mounting hole 4, so as to connect the fixed base 1 with the ground. Then, insert the constant velocity drive shaft between the three clamping blocks 2. Subsequently, rotate the threaded rod 5 so that the convex block 6 at the end of the threaded rod 5 rotates in the docking hole 7 opened on the outer side wall of the clamping block 2. At the same time, the threaded rod 5 drives the clamping blocks 2 to approach each other, so as to bind the constant velocity drive shaft between the clamping blocks 2. At the same time, the bumps 3 on the inner wall of the clamping block 2 increase the stability of the clamping of the constant velocity drive shaft, and then adjust the position of the clamping block 2 to facilitate the processing of constant velocity drive shafts with different shaft diameters.

[0026] Embodiment 2

[0027] Please refer to Figures 1-4 , a support block 8 is provided at the bottom end of the fixed base 1, and a threaded groove 9 adapted to the support block 8 is opened at the bottom end of the fixed base 1.

[0028] Preferably: The support block 8 and the fixed base 1 form a detachable connection through the threaded groove 9.

[0029] In the embodiment, when the constant velocity drive shaft is processed, if it is necessary to avoid dust accumulation inside the fixed base 1, at this time, the support block 8 is taken out and screwed into the threaded groove 9 opened at the bottom end of the fixed base 1. Then, the fixed base 1 forms a certain distance from the ground through the support block 8. Then, the impurities dropped during the processing of the constant velocity drive shaft will fall from inside the fixed base 1 to the ground, thereby avoiding the direct connection between the fixed base 1 and the ground, and the impurities falling into the fixed base 1 affecting the cooperation between the threaded rod 5 and the clamping block 2.

[0030] In summary, according to the descriptions of Embodiment 1 and Embodiment 2, this quick positioning and fixing tooling is not only convenient for adjusting the distance between the clamping blocks 2 to facilitate the use of constant velocity drive shafts with different shaft diameters, but also avoids the direct connection between the fixed base 1 and the ground, and the impurities falling into the fixed base 1 affecting the cooperation between the threaded rod 5 and the clamping block 2, thereby improving the practicability of this quick positioning and fixing tooling.

[0031] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fast positioning and fixing tool for a constant speed drive shaft with an adjustment structure, comprising a fixed base (1) and a clamping block (2) located inside the fixed base (1), characterized in that: The clamping block (2) is provided with three through holes in a circular array penetrating the surface of the fixed base (1), and the inner wall of the clamping block (2) is connected with a protrusion (3); Four protrusions (3) are arranged vertically downward, a mounting hole (4) is provided through the top surface of the fixed base (1), a threaded rod (5) is connected to the internal thread of the fixed base (1), a protrusion (6) is connected to the end of the threaded rod (5), and a docking hole (7) is provided on the outer wall of the clamping block (2).

2. The fast positioning and fixing tool for a constant speed drive shaft with an adjustment structure according to claim 1, characterized in that: The docking hole (7) is matched to the size of the convex block (6) and is in a convex shape. The convex block (6) is connected to the inside of the docking hole (7).

3. The fast positioning and fixing tool for a constant speed drive shaft with an adjustment structure according to claim 1, characterized in that: The threaded rod (5) and the protrusion (6) are integrally connected, and the clamping block (2) is telescopically connected to the fixed base (1) via the threaded rod (5).

4. The fast positioning and fixing tool for a constant speed drive shaft with an adjustment structure according to claim 1, characterized in that: Six threaded rods (5) are provided, and every two threaded rods (5) pass through the fixed base (1) and are connected to the outer side wall of the clamping block (2).

5. The fast positioning and fixing tool for a constant speed drive shaft with an adjustment structure according to claim 1, characterized in that: A support block (8) is arranged at the bottom end of the fixed base (1), and a threaded groove (9) matching the support block (8) is opened at the bottom end of the fixed base (1).

6. The fast positioning and fixing tool for a constant speed drive shaft with an adjustment structure according to claim 5, characterized in that: The support block (8) is detachably connected to the fixed base (1) via a threaded groove (9).

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