Tightening device and method for front end socket and rear end socket

Abstract

The invention discloses a front end socket and rear end socket tightening device and method.The front end socket and rear end socket tightening device comprises a sleeve type main body structure, and the sleeve type main body structure comprises a first body and a second body; the first body is in a sleeve shape, the second body is of a columnar structure, and the first body is connected with the second body; the torque wrench mounting hole is formed in the second body, and the torque wrench mounting hole is of a square hole structure; and the sealing head matching surfaces are arranged on the inner surface of the first body, the number of the sealing head matching surfaces is multiple, and the sealing head matching surfaces are uniformly arranged. The device has the advantages that labor is saved through a sleeve type structure, and a square hole structure is matched with a torque wrench for use to accurately apply torque.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical manufacturing and tightening devices, and in particular to a front and rear head tightening device and method. Background Art

[0002] At present, for structures connected by threads, when tightening the threads, it is necessary to ensure that the direction of the threads is correct and the rotation force is appropriate to ensure that the connection is firm and will not loosen. During the assembly process, it is necessary to use tooling to tighten the structural parts. A thread tightening device is a tooling used to tighten threads, usually used to tighten screws, nuts or other threaded connectors together. The thread tightening device usually includes a handle or an electric drive system that can provide appropriate torque to tighten the threaded connector to ensure that the tightness between the connectors meets the specified requirements.

[0003] In the prior art, the existing tooling can basically achieve the function of tightening structural parts, but lacks precise control of torque, and the connection quality of key structural parts must rely on torque to ensure. In addition, the existing handle-type tightening tooling is often heavy due to its long lever arm, which seriously affects the assembly efficiency. Therefore, it is urgent to upgrade the existing tooling to meet the requirements of precise torque application and labor saving.

[0004] In summary, there is at least one of the following technical problems:

[0005] The existing tooling can basically achieve the function of tightening structural parts, but lacks precise control of torque, and the connection quality of key structural parts must rely on torque to ensure. In addition, the existing handle-type tightening tooling is often heavy due to its long lever arm, which seriously affects the assembly efficiency. Summary of the invention

[0006] The main purpose of the present invention is to provide a front and rear head tightening device and method to solve the technical problem that the existing tooling in the prior art can basically realize the function of tightening the structural parts, but lacks precise control of the torque, and the connection quality of the key structural parts needs to rely on the torque to ensure. In addition, the existing handle-type tightening tooling is often heavy due to its long lever arm, which seriously affects the assembly efficiency.

[0007] In order to achieve the above object, according to one aspect of the present invention, a front and rear head tightening device is provided, comprising:

[0008] A sleeve-type main body structure, the sleeve-type main body structure comprises a first body and a second body; the first body is sleeve-shaped, the second body is a columnar structure, and the first body and the second body are connected;

[0009] A torque wrench mounting hole, the torque wrench mounting hole is arranged on the second body, and the torque wrench mounting hole is a square hole structure;

[0010] The head mating surface is arranged on the inner surface of the first body, and the head mating surface includes a plurality of head mating surfaces, which are evenly arranged.

[0011] Preferably, the second body is connected to the torque wrench via a square hole structure.

[0012] Preferably, the first body is connected to the head through the head mating surface, and the first body in a sleeve structure is sleeved on the head.

[0013] Preferably, the mating surface of the head is a planar structure.

[0014] Preferably, the second body and the mounting hole are arranged on the central axis of the first body.

[0015] Preferably, the first body size corresponds to the head size.

[0016] Preferably, the torque wrench converts the rotational torque into the rotational torque of the sleeve through the square mounting hole.

[0017] Preferably, a lever arm structure is formed between the second body and the mating surface of the head.

[0018] Preferably, the first body and the second body are integrally formed.

[0019] According to another aspect of the present invention, a method for tightening front and rear heads is provided, comprising:

[0020] The first body having a sleeve structure is sleeved on the end cap and matched with the end cap through the end cap matching surface;

[0021] The second body is connected to torque wrenches of different ranges through the square mounting hole;

[0022] The rotation of the torque wrench is converted into the rotational torque of the sleeve through the second body, wherein a torque is formed between the second body and the mating surface of the head, thereby realizing the tightening of the front and rear heads.

[0023] The application of the technical solution of the present invention has the following technical effects:

[0024] The first body in a sleeve structure is sleeved on the end cap, and matched with the end cap through the end cap mating surface; the square mounting hole of the second body is connected with torque wrenches of different ranges; the rotation of the torque wrench is converted into the rotational torque of the sleeve through the second body, wherein a torque is formed between the second body and the end cap mating surface, thereby realizing the tightening of the front and rear end caps. The rotation of the torque wrench can be converted into the rotational torque of the sleeve through the square hole. Compared with the handle-type tooling, the device is more labor-saving when tightening the front and rear end caps, and the weight of the tooling is borne by the end cap to be assembled, which has a labor-saving effect. The sleeve-type structure is used to save labor, and the square hole structure is used in conjunction with the torque wrench to achieve precise torque application. The square hole on the top of the device is matched with the torque wrench, and can be connected with torque wrenches of different ranges to achieve precise control of the tightening torque. During assembly, the inner wall of the device is matched with the end cap, the torque wrench is matched with the square hole on the top of the device, and the torque wrench is turned. The device drives the front and rear end caps to rotate to tighten the end caps. Precise torque application is achieved by adopting a sleeve-type tightening device with a square hole design, and torque application can also be achieved by using a handle-type tightening tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 It shows a schematic structural diagram of the front and rear head tightening devices according to the present invention;

[0027] Figure 2 Shows Figure 1 The side structural view of the front and rear head tightening devices;

[0028] Figure 3 Shows Figure 1 A front view of the front and rear head tightening devices;

[0029] Figure 4 Shows Figure 1 The left side view of the front and rear head tightening device;

[0030] Figure 5 Out Figure 1 The force diagram of the front and rear head tightening devices;

[0031] Figure 6 Out Figure 1 The force diagram of the original tightening method of the front and rear head tightening devices.

[0032] The above drawings include the following reference numerals:

[0033] Torque wrench mounting hole 1; head mating surface 2; sleeve type main body structure 3; first body 4; second body 5. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] like Figures 1 to 6 As shown, an embodiment of the present invention provides a front and rear head tightening device, including: a sleeve-type main body structure 3, the sleeve-type main body structure 3 includes a first body 4 and a second body 5; the first body 4 is sleeve-shaped, the second body 5 is a columnar structure, and the first body 4 and the second body 5 are connected; a torque wrench mounting hole 1, the torque wrench mounting hole 1 is arranged on the second body 5, and the torque wrench mounting hole 1 is a square hole structure; a head mating surface 2, the head mating surface 2 is arranged on the inner surface of the first body 4, and the head mating surface 2 includes a plurality of head mating surfaces 2, and the plurality of head mating surfaces 2 are evenly arranged.

[0036] In this embodiment, the sleeve-type main body structure 3 includes a first body 4 and a second body 5; the first body 4 is sleeve-shaped, the second body 5 is a columnar structure, the first body 4 and the second body 5 are connected; the second body 5 is connected to the torque wrench through a square hole structure. The first body 4 is connected to the head through the head mating surface 2, and the first body 4 with a sleeve structure is sleeved on the head. The second body 5 and the mounting hole are arranged at the central axis position of the first body 4. The size of the sleeve corresponds to the size of the head. A force arm structure is formed between the second body 5 and the head mating surface 2, and the first body 4 and the second body 5 are integrally formed, and the integral forming ensures the stability of the structure.

[0037] In this embodiment, by setting it as a sleeve-type structure, better coordination with the head can be ensured. It only needs to be inserted to quickly achieve connection with the head, thereby improving alignment efficiency. In addition, the sleeve structure is sleeved on the head, and the head cooperates with the sleeve. The head supports the sleeve, and the coordination effect is better. The contact surface is larger, which can reduce manpower support and save time. In addition, the first body 4 of the sleeve structure is sleeved on the head, and can achieve one-time coordination with the head. It is possible to replace torque wrenches of various ranges without repeated coordination with the head, thereby improving efficiency and avoiding damage to the repeated coordination of the head.

[0038] In this embodiment, the second body 5 is arranged at the central axis position of the first body 4, and the principles of physics are well utilized to form a torque between the second body 5 and the head mating surface 2. The torque wrench first transmits the rotational force to the second body 5, and the second body 5 forms a certain torque through the bottom surface of the first body 4, which not only has a labor-saving effect, but also the bottom surface of the sleeve is a whole plane and will not be deformed, thereby ensuring a good torque transmission effect and realizing complete transmission of the rotational torque.

[0039] In this embodiment, a cover matching surface is provided on the inner surface of the first body 4 to achieve good matching with the cover, and is evenly arranged in a matrix to ensure uniform force.

[0040] In this embodiment, the torque wrench mounting hole 1 is arranged on the second body 5, and the torque wrench mounting hole 1 is a square hole structure; the torque wrench converts the rotational torque into the rotational torque of the sleeve through the square mounting hole.

[0041] In this embodiment, the head mating surface 2 is arranged on the inner surface of the first body 4, and the head mating surface 2 includes a plurality of head mating surfaces 2, which are evenly arranged. The head mating surface 2 is a planar structure.

[0042] Specifically, this embodiment solves the problem that the existing tooling cannot accurately apply torque and is laborious, ensures the quality of threaded connection, and improves assembly efficiency. A sleeve-type main structure 3 is adopted, including a sleeve, a transmission device, etc. The sleeve can be selected in different specifications and materials according to needs, and it can be designed to a specific size to adapt to different specifications of heads; the transmission device is a square hole structure, and the rotation of the torque wrench can be converted into the rotational torque of the sleeve through the square hole. Compared with the handle-type tooling, this device is more labor-saving when tightening the front and rear heads. This is because the weight of the tooling is borne by the head to be assembled, which has a labor-saving effect. The square hole on the top of the device cooperates with the torque wrench and can be connected with torque wrenches of different ranges to achieve precise control of the tightening torque. During assembly, the inner wall of the device is matched with the head, the torque wrench is matched with the square hole on the top of the device, and the torque wrench is turned. The device drives the front and rear heads to rotate to tighten the heads. By adopting a sleeve-type tightening device with a square hole, accurate torque application is achieved and time and labor are saved, which not only ensures the quality of threaded connection, but also improves assembly efficiency. By adopting a sleeve-type tightening device with a square hole design, accurate torque application is achieved, and torque application can also be achieved using a handle-type tightening tool. The sleeve-type structure saves labor, and the square hole structure is used in conjunction with a torque wrench to achieve accurate torque application.

[0043] In this embodiment, it is more labor-saving when tightening the front and rear heads, and the tightening torque is more accurate. This is because the tightening method is optimized, which has the effect of saving labor. Figure 5 , Figure 6 shown.

[0044] The force analysis is as follows:

[0045] f = μF1sinθ

[0046] M1 = (f + F1cosθ)r1 = (μF1sinθ + F1cosθ)r1

[0047] M2 = F2r2

[0048] M1 = M2 (the torque to be applied is a fixed value)

[0049] (μF1sinθ + F1cosθ)r1 = F2r2

[0050] F1(μsinθ + cosθ)r1 = F2r2

[0051]

[0052] Let Y = μsinθ + cosθ

[0053] Take the derivative of Y: When θ = 0, When At this time,

[0054] ∴ At this time,

[0055] ∴ Y is a monotonically increasing function, and r1 < r2 (from the perspective of human mechanics, when r2 is larger than r1, it is easier to apply torque)

[0056] ∴ F1 > F2

[0057] Where f - frictional force, μ - coefficient of friction, F1 - original tightening force, θ - included angle, F2 - tightening force of this method, r1 - radius of the original method, r2 - radius of this method, M1 – torque of the original method, M2 - torque of this method.

[0058] This method is more labor-saving than the original method. When this method is applied: the square hole on the top of the device cooperates with the torque wrench, and can be connected with torque wrenches of different ranges to achieve precise control of the tightening torque. During assembly, the inner wall of the device is matched with the head, the torque wrench is matched with the square hole on the top of the device, and the torque wrench is turned. The device drives the front and rear heads to rotate and tighten the heads. The method of using a sleeve-type tightening device with a square hole is used to convert the rotation of the torque wrench into the rotational torque of the sleeve through the square hole; compared with the original tightening method, this method is more labor-saving when tightening the front and rear heads. This is because the tightening method is optimized, the force application point is changed, the torque is lengthened, and the labor-saving effect is achieved. Thereby, accurate torque application is achieved and time and labor are saved, which not only ensures the quality of threaded connection, but also improves assembly efficiency. By adopting the method design of a sleeve-type tightening device with a square hole, accurate torque application is achieved. Torque application can also be achieved using a handle-type tightening tool. This tightening method changes the force application point, lengthens the torque, and achieves a labor-saving effect; the square hole structure is used in conjunction with the torque wrench to achieve precise torque application.

[0059] Another embodiment of the present invention provides a front and rear head tightening method, comprising:

[0060] The first body 4 in a sleeve structure is sleeved on the end cap and matched with the end cap through the end cap matching surface 2;

[0061] The second body 5 is connected to torque wrenches of different ranges through the square mounting hole;

[0062] The rotation of the torque wrench is converted into the rotational torque of the sleeve through the second body 5, wherein a torque is formed between the second body 5 and the head mating surface 2, thereby realizing the tightening of the front and rear heads.

[0063] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0064] The first body 4 in a sleeve structure is sleeved on the end cap, and matched with the end cap through the end cap mating surface 2; the square mounting hole of the second body 5 is connected with torque wrenches of different ranges; the rotation of the torque wrench is converted into the rotational torque of the sleeve through the second body 5, wherein a torque is formed between the second body 5 and the end cap mating surface 2, thereby realizing the tightening of the front and rear ends. The rotation of the torque wrench can be converted into the rotational torque of the sleeve through the square hole. Compared with the handle-type tooling, this device is more labor-saving when tightening the front and rear ends, and the weight of the tooling is borne by the end cap to be assembled, which has a labor-saving effect. Labor saving is achieved through the sleeve-type structure, and the square hole structure is used in conjunction with the torque wrench to achieve precise application of torque. The square hole on the top of the device cooperates with the torque wrench and can be connected with torque wrenches of different ranges to achieve precise control of the tightening torque. During assembly, the inner wall of the device is matched with the head, the torque wrench is matched with the square hole on the top of the device, and the torque wrench is turned. The device drives the front and rear heads to rotate and tighten the heads. The precise application of torque is achieved by adopting the sleeve-type tightening device with square holes, and the application of torque can also be achieved by using a handle-type tightening tool.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, 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 front and rear head tightening device, characterized in that: include: A sleeve-type main body structure, the sleeve-type main body structure comprises a first body and a second body; the first body is sleeve-shaped, the second body is a columnar structure, and the first body and the second body are connected; A torque wrench mounting hole, the torque wrench mounting hole is arranged on the second body, and the torque wrench mounting hole is a square hole structure; The head mating surface is arranged on the inner surface of the first body, and the head mating surface includes a plurality of head mating surfaces, which are evenly arranged.

2. The front and rear head tightening device according to claim 1, characterized in that: The second body is connected to the torque wrench through a square hole structure.

3. The front and rear head tightening device according to claim 1, characterized in that: The first body is connected to the head through the head matching surface, and the first body in a sleeve structure is sleeved on the head.

4. The front and rear head tightening device according to claim 1, characterized in that: The head matching surface is a planar structure.

5. The front and rear head tightening device according to claim 1, characterized in that: The second body and the mounting hole are arranged at the central axis position of the first body.

6. The front and rear head tightening device according to claim 1, characterized in that: The first body size corresponds to the head size.

7. The front and rear head tightening device according to claim 2, characterized in that: The torque wrench converts the rotational torque into the rotational torque of the sleeve through the square mounting hole.

8. The front and rear head tightening device according to claim 1, characterized in that: A force arm structure is formed between the second body and the matching surface of the head.

9. The front and rear head tightening device according to claim 1, characterized in that: The first body and the second body are integrally formed.

10. A front and rear head tightening method, based on the front and rear head tightening device according to any one of claims 1 to 9, characterized in that: include: The first body having a sleeve structure is sleeved on the end cap and matched with the end cap through the end cap matching surface; The second body is connected to torque wrenches of different ranges through the square mounting hole; The rotation of the torque wrench is converted into the rotational torque of the sleeve through the second body, wherein a torque is formed between the second body and the mating surface of the head, thereby realizing the tightening of the front and rear heads.

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