Torque applying device for double-end stud

Abstract

The utility model relates to the technical field of assembling tools, in particular to a double-end stud torque applying device, a double-end stud is provided with an assembling end and a clamping end, the assembling end is screwed into a part, and the double-end stud torque applying device comprises a nut sleeve, a top column and a switching sleeve; the lower end of the nut sleeve is arranged at the clamping end of the double-end stud in a sleeving manner; the jacking column is arranged in the nut sleeve in a penetrating mode, and the end face of the lower end of the jacking column abuts against the end face of the clamping end of the double-end stud; the upper end of the top column is connected with the torque wrench in a sleeved mode through the adapter sleeve, and the torque wrench is rotated to apply torque to the assembling end of the double-end stud.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly tools. Specifically, the utility model provides a double-headed stud torque applying device. Background Art

[0002] In the existing technical field, applying a specific torque to studs with a unique structure—a smooth center section with threads of varying specifications at each end—presents unique challenges in assembly. During the actual assembly process, after one end is threaded into the corresponding component, traditional torque tools are unable to directly clamp and apply torque to the other end due to the lack of clamping threads in the middle of the stud. This structural peculiarity precludes the use of standard torque wrenches or other clamping devices, thus impacting the efficiency and quality of stud assembly.

[0003] Therefore, there is an urgent need to develop a torque applying device suitable for stud bolts. Utility Model Content

[0004] The utility model provides a double-headed stud torque applying device, which at least solves the problem that the existing double-headed studs are difficult to clamp and apply torque during assembly.

[0005] To achieve the above-mentioned purpose, the present invention provides a stud torque applying device, wherein the stud has an assembly end and a clamping end, and the assembly end is screwed into a part. The stud torque applying device is characterized in that it includes:

[0006] a nut sleeve, the lower end of which is sleeved on the clamping end of the stud;

[0007] A push column is inserted into the nut sleeve, and the end surface of the lower end of the push column is pressed against the end surface of the clamping end of the stud;

[0008] An adapter sleeve is provided, wherein the upper end of the top column is connected to the torque wrench through the adapter sleeve, and the torque wrench is rotated to apply torque to the assembly end of the stud.

[0009] Furthermore, a stepped inner screw hole is provided at the lower end of the nut sleeve, and the stepped inner screw hole cooperates with the clamping end of the stud.

[0010] Furthermore, the top column includes:

[0011] A threaded section, wherein the lower end of the top column is a threaded section, and the threaded section matches the minimum diameter screw hole of the stepped inner screw hole;

[0012] An optical axis section, wherein the middle section of the top column is the optical axis section, and the optical axis section is passed through the nut sleeve and matched with the central through hole of the nut sleeve;

[0013] The upper end of the top column is the transition section, and the transition section is polygonal and inserted into the transition sleeve.

[0014] Furthermore, a polygonal axial hole is provided at the lower end of the adapter sleeve, which cooperates with the adapter section of the top column through the polygonal axial hole; a stepped square hole is provided at the upper end of the adapter sleeve, which cooperates with the torque wrench through the stepped square hole.

[0015] Furthermore, the nut sleeve is provided with two handles symmetrically along the radial direction near one end of the adapter tube.

[0016] Furthermore, the two handles and the nut sleeve are fixed by welding, threaded connection or clamping.

[0017] Furthermore, the diameter of the stepped inner screw hole decreases inward from the end surface.

[0018] Furthermore, the stepped internal screw hole includes at least three threaded sections with different diameters to accommodate stud bolt clamping ends of different specifications.

[0019] Furthermore, the side length of the stepped square hole decreases inward from the end surface.

[0020] Furthermore, the length of the top column is greater than the length of the nut sleeve.

[0021] Compared with the existing technology, the advantages and positive effects of the present invention are as follows: the present invention proposes a double-headed stud torque application device, which connects the nut sleeve and the adapter sleeve through a push column, thereby realizing the conversion of rotational freedom into linear feed freedom, so as to tighten the double-headed stud to meet its assembly torque requirements, ensuring that the problem of applying torque to it is effectively solved without affecting the threads at both ends of the double-headed stud product. The double-headed stud torque application device of the present invention is easy to operate, greatly improves production efficiency, saves labor costs, and expands the operating space for subsequent production. At the same time, because both the adapter sleeve and the nut sleeve are provided with stepped holes, they are suitable for double-headed stud products of different specifications and different assembly torque requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the double-headed stud torque applying device of the utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the torque applying device for a double-ended stud according to the present invention;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the nut sleeve of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the ejector rod of the utility model;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the adapter sleeve of the utility model.

[0027] In the above picture:

[0028] 1. Nut sleeve; 11. Handle; 2. Push pin; 21. Threaded section; 22. Optical axis section; 23. Adapter section; 3. Adapter sleeve; 4. Stud; 5. Torque wrench; A. Stepped internal screw hole; B. Polygonal shaft hole; C. Stepped square hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "liquid level", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0032] like Figures 1 to 5As shown, the utility model provides a double-ended stud torque applying device for applying torque to the assembly end of the double-ended stud 4 to meet the assembly torque requirement of the double-ended stud 4.

[0033] like Figure 1-Figure 2 As shown, the utility model provides a stud torque applying device, the stud 4 has an assembly end and a clamping end, the assembly end is screwed into the part, and the stud torque applying device includes:

[0034] The nut sleeve 1, the lower end of which is sleeved on the clamping end of the stud 4;

[0035] The top column 2 is inserted into the nut sleeve 1, and the end surface of the lower end of the top column 2 is pressed tightly against the end surface of the clamping end of the stud 4;

[0036] The upper end of the top column 2 is connected to the torque wrench 5 through the adapter sleeve 3, and the torque wrench 5 is rotated to apply torque to the assembly end of the stud 4.

[0037] Figure 3 This is a schematic diagram of the structure of the nut sleeve 1 of the utility model. Figure 3 The structure of the nut sleeve 1 is described in detail.

[0038] Preferably, if Figure 3 As shown, the lower end of the nut sleeve 1 is provided with a stepped inner screw hole A, which cooperates with the clamping end of the stud 4 through the stepped inner screw hole A, thereby enhancing the reliability of the connection.

[0039] In some embodiments, the diameter of the stepped internal screw hole A decreases inward from the end surface; the stepped internal screw hole A includes at least three threaded sections 21 with different diameters to accommodate the clamping ends of the stud bolts 4 of different specifications.

[0040] By providing an inwardly decreasing stepped internal screw hole A, the assembly process is simplified, allowing the user to more easily correctly match the nut sleeve 1 with the stud 4; by providing at least three threaded sections 21 of different diameters, the nut sleeve 1 can adapt to the clamping ends of studs 4 of different specifications, thereby improving the versatility and flexibility of the product, reducing the need to replace parts due to specification mismatch, and thus reducing maintenance costs.

[0041] In some embodiments, the nut sleeve 1 is provided with two handles 11 symmetrically along the radial direction near one end of the adapter tube. The handles 11 allow the operator to rotate and assemble the nut sleeve 1 more quickly, thereby improving the efficiency and convenience of assembly or disassembly.

[0042] In some embodiments, the two handles 11 and the nut sleeve 1 are fixed by welding, threaded connection or clamping.

[0043] Figure 4This is a schematic diagram of the structure of the top column 2 of the utility model. Figure 4 The structure of the top column 2 is described in detail.

[0044] Preferably, if Figure 4 As shown, the top column 2 includes: a threaded section 21, an optical axis section 22 and a transition section 23;

[0045] The threaded section 21 is provided at the lower end of the top column 2. The threaded section 21 matches the minimum diameter screw hole of the stepped inner screw hole A, ensuring a tight fit between the top column 2 and the nut sleeve 1, thereby improving the stability and reliability of the connection.

[0046] The optical axis section 22 is the middle section of the top column 2. The optical axis section 22 is passed through the nut sleeve 1 and matches the central through hole of the nut sleeve 1.

[0047] The upper end of the top column 2 is the transition section 23, which is polygonal and inserted into the transition sleeve 3. The polygonal transition section 23 cooperates with the transition sleeve 3 to provide a better locking effect, reduce loosening caused by vibration or impact, and help improve the strength of the entire connection structure. At the same time, the polygonal transition section can ensure precise positioning in the transition sleeve 3, reduce installation errors, and improve assembly accuracy.

[0048] In some embodiments, the length of the top column 2 is greater than the length of the nut sleeve 1 .

[0049] Figure 5 This is a schematic diagram of the structure of the adapter sleeve 3 of the utility model. Figure 5 The structure of the adapter sleeve 3 is described in detail.

[0050] Preferably, if Figure 5 As shown, a polygonal axial hole B is provided at the lower end of the adapter sleeve 3, which cooperates with the adapter section 23 of the top column 2 through the polygonal axial hole B; a stepped square hole C is provided at the upper end of the adapter sleeve 3, which cooperates with the torque wrench 5 through the stepped square hole C.

[0051] In some embodiments, the side length of the stepped square hole C decreases inward from the end surface; the stepped square hole C includes at least three square holes with different side lengths to accommodate torque wrenches 5 of different specifications. The design of the stepped square hole C allows the adapter sleeve 3 to be used with torque wrenches 5 of different specifications, increasing the product's applicability and flexibility, reducing the need for part replacement due to mismatches with torque wrenches 5, and thus reducing maintenance costs.

[0052] Preferably, in actual operation, the steps of applying torque to the stud bolt 4 using the present device are as follows:

[0053] First, preliminarily assemble the torque applying device of the stud 4, screw the top column 2 into the nut sleeve 1, and connect the adapter sleeve 3 to the adapter section 23 of the top column 2; you can also not install the adapter sleeve 3 first, and install the adapter sleeve 3 after screwing the clamping end of the stud 4 into the nut sleeve 1.

[0054] After completing the initial assembly, screw the assembly end of the stud 4 into the part to be assembled. According to the specifications of the clamping end of the stud 4, hold the handle 11 and rotate the nut sleeve 1 so that the clamping end of the stud 4 is screwed into the threaded hole that matches the stepped threaded hole of the nut sleeve 1. The end face of the clamping end of the stud 4 is tightly attached to the lower end face of the top column 2. According to the assembly torque requirements, use a torque wrench 5 of the required specifications to match the square hole that matches the stepped square hole C of the adapter sleeve 3. Turning the torque wrench 5 drives the top column 2 downward to tighten the end face of the clamping end of the stud 4, thereby converting the rotational feed degree of freedom into a linear feed degree of freedom, and ultimately achieving the assembly torque requirements of the stud pitch assembly end. When the torque wrench 5 "clicks", it indicates that the preset torque value has been reached.

[0055] After completing the application of torque to the assembly end of the stud thread, slightly unload the force on the top column 2 in the reverse direction to separate the tightening surface of the top column 2 from the end face of the stud 4. Finally, gently rotate the nut sleeve 1 in the reverse direction to withdraw the clamping end of the stud 4 to ensure that the assembly end of the stud 4 meets the assembly torque requirements and there is no reverse loosening.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A stud torque applying device, wherein the stud has an assembly end and a clamping end, wherein the assembly end is screwed into a part, The stud bolt torque applying device comprises: a nut sleeve, the lower end of which is sleeved on the clamping end of the stud; A top post is inserted into the nut sleeve, wherein the end surface of the lower end of the top post presses against the end surface of the clamping end of the stud; An adapter sleeve is provided, wherein the upper end of the top column is connected to a torque wrench through the adapter sleeve, and the torque wrench is rotated to apply torque to the assembly end of the stud.

2. The stud bolt torque applying device according to claim 1, characterized in that: The lower end of the nut sleeve is provided with a stepped inner screw hole, which cooperates with the clamping end of the stud bolt through the stepped inner screw hole.

3. The stud bolt torque applying device according to claim 2, characterized in that: The top column comprises: A threaded section, wherein the lower end of the top column is a threaded section, and the threaded section matches the minimum diameter screw hole of the stepped inner screw hole; An optical axis segment, wherein the middle section of the top column is the optical axis segment, and the optical axis segment is passed through the nut sleeve and matched with the central through hole of the nut sleeve; The upper end of the top column is the transition section, and the transition section is polygonal and inserted into the transition sleeve.

4. The stud bolt torque applying device according to claim 3, characterized in that: The lower end of the adapter sleeve is provided with a polygonal shaft hole, which cooperates with the adapter section of the top column through the polygonal shaft hole; the upper end of the adapter sleeve is provided with a stepped square hole, which cooperates with the torque wrench through the stepped square hole.

5. The stud bolt torque applying device according to claim 1, characterized in that: The nut sleeve is close to one end of the adapter cylinder and is symmetrically provided with two handles along the radial direction.

6. The stud bolt torque applying device according to claim 5, characterized in that: The two handles and the nut sleeve are fixed by welding, thread connection or clamping.

7. The stud bolt torque applying device according to claim 2, characterized in that: The diameter of the stepped inner screw hole decreases inward from the end surface.

8. The stud bolt torque applying device according to claim 2, characterized in that: The stepped inner screw hole includes at least three threaded sections with different diameters to accommodate stud bolt clamping ends of different specifications.

9. The stud bolt torque applying device according to claim 4, characterized in that: The side length of the stepped square hole decreases inward from the end surface.

10. The stud bolt torque applying device according to claim 1, characterized in that: The length of the top column is greater than the length of the nut sleeve.

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