Precise locking nut wrench

Abstract

The utility model belongs to the technical field of nut wrenches, and particularly relates to a precise locking nut wrench which comprises a wrench body, two bearings are fixedly connected to the inner wall of the wrench body, and the same main shaft is welded to the inner sides of inner rings of the two bearings. The wrench body serves as a main body of the whole tool and is flexibly and rotationally connected with the main shaft through the bearing, the limiting sleeve is installed on the main shaft and used for limiting the stroke of the main shaft, the square hole is formed in one end of the wrench body, and the shape and the size of the square hole are designed to be matched with those of a torsion bar on a torsion plate. A user can directly sleeve the torsion bar on the torsion plate into the square hole to realize torque transmission and control of the wrench body, the locking part is a key part of the wrench body and is in direct contact with a locked nut, and when a torsion wrench applies torque, the torque is transmitted to the torsion bar through the torsion plate and then is further transmitted to the locking part of the main shaft, so that the nut is locked. Therefore, locking of the nut is achieved, and efficient and accurate locking operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nut wrenches, in particular to a precision locking nut wrench. Background Art

[0002] In the fields of mechanical manufacturing and precision maintenance, nuts, as indispensable fasteners in mechanical equipment, bear the heavy responsibility of tightly and stably connecting various components. Especially on components such as spindles that bear high strength and high precision requirements, the performance of the lock nut is directly related to the operational stability and lifespan of the entire equipment. Therefore, the spindle lock nut must not only have sufficient locking force to ensure a secure connection, but also meet extremely high precision requirements to prevent mechanical failures caused by loosening or deformation.

[0003] Traditional locking methods, such as manual tightening with a standard wrench or forced tightening with a hammer, have numerous drawbacks. First, these methods make it difficult to precisely control the tightening torque, which can easily lead to excessive or insufficient tightening force. The former can damage the nut or spindle threads, causing irreversible damage; the latter can cause the connection to loosen, compromising the stability and safety of the equipment. Second, traditional methods often make it difficult to access components with limited space, such as nuts hidden deep within a machine tool's spindle box or within complex structures, making effective tightening impossible. Therefore, we have developed a precision locking nut wrench to address these issues. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a precision locking nut wrench, which solves the problems raised in the above-mentioned background technology.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] The cam is secured to the cam face with an angular channel formed between a pair of camming links and a pair of camming, the cam being secured to the cam face with a pair of camming links when the cam is engaged.

[0009] Furthermore, a circular groove is provided on the torsion plate, and the torsion plate is in movably contact with the main shaft through the circular groove.

[0010] Furthermore, the wrench body is provided with two outer rings.

[0011] Furthermore, a plurality of thread grooves are provided on the wrench body, and the thread grooves are threadably connected to corresponding bolts.

[0012] Furthermore, a groove is provided on one side of the torsion plate.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a precision locking nut wrench with the following beneficial effects:

[0015] The utility model uses the wrench body as the main body of the entire tool, and realizes flexible rotation connection with the main shaft through the bearing. The limit sleeve is installed on the main shaft to limit the stroke of the main shaft. The square hole is located at one end of the wrench body, and its shape and size are designed to match the torsion bar on the torque plate. In this way, the user can directly insert the torsion bar on the torque plate into the square hole to realize torque transmission and control of the wrench body. The locking part is the key part of the wrench body, which directly contacts the nut to be locked. When the torque wrench applies torque, the torque is transmitted to the torsion bar through the torsion plate, and then further transmitted to the main shaft locking part, thereby realizing the locking of the nut, achieving efficient and accurate locking operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the partial three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the wrench body of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the torsion plate and torsion rod connection of the utility model.

[0020] In the figure: 1. Wrench body; 2. Bearing; 3. Spindle; 4. Limit sleeve; 5. Bolt; 6. Positioning rod; 7. Socket; 8. Square hole; 9. Locking part; 10. Torsion plate; 11. Torsion rod; 12. Groove; 13. Outer ring; 14. Threaded groove; 15. Support part; 16. Circular groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] like Figure 1-4As shown, a precision locking nut wrench proposed in an embodiment of the present invention includes a wrench body 1, two bearings 2 are fixedly connected to the inner wall of the wrench body 1, and the inner sides of the inner rings of the two bearings 2 are welded with the same main shaft 3. The wrench body 1 is threadedly connected to a limiting sleeve 4 by multiple bolts 5, and a support part 15 is sleeved on the main shaft 3, and multiple positioning rods 6 are welded in an annular shape on one side of the support part 15. A sleeve pipe 7 is fixedly connected to the support part 15, and a plurality of through holes are opened in an annular shape on the sleeve pipe 7. The sleeve pipe 7 is fixedly connected to the corresponding positioning rod 6 through the through holes. A locking part 9 is provided on the right side of the wrench body 1, and the locking part 9 is sleeved on the main shaft 3. A plurality of square holes 8 are opened in an annular shape on the sleeve pipe 7, and a torsion rod 11 is clamped on the square hole 8. The ends of the plurality of torsion rods 11 are fixedly connected with a torsion plate 10. The wrench body 1 serves as the main body of the entire tool, and is flexibly rotated with the main shaft 3 through the bearing 2. This design ensures that the body 1 wrench can rotate smoothly during use, reducing friction and resistance The limiting sleeve 4 is installed on the main shaft 3 to limit the stroke of the main shaft 3 and ensure that the wrench body 1 does not apply excessive force when tightening the nut, thereby protecting the nut and the wrench body 1 from damage. The bolt 5 is used to fix the limiting sleeve 4 on the main shaft 3 to ensure its stability during work. The positioning rod 6 is inserted into the sleeve tube 7 to play a positioning and supporting role. This design enables the wrench body 1 to remain stable and not easy to shake when tightening the nut. The square hole 8 is located at one end of the wrench body, and its shape and size are designed to match the torsion rod 11 on the torsion plate 10. In this way, the user can directly insert the torsion rod 11 on the torsion plate 10 into the square hole 8 to realize the torque transmission and control of the wrench body 1. The locking part 9 is the key part of the wrench body 1. It directly contacts the nut to be locked. When the torque is applied by the torque plate 10, the torque is transmitted to the torsion rod 11 through the torsion plate 10, and then further transmitted to the locking part 9 of the main shaft 3, thereby realizing the locking of the nut, realizing efficient and accurate locking operation.

[0024] In some embodiments, a circular groove 16 is provided on the torsion plate 10, and the torsion plate 10 is in movable contact with the main shaft 3 through the circular groove 16. The design of the circular groove 16 allows the torsion plate 10 to have a certain range of motion on the main shaft 3. This design makes the transmission of torque more flexible. When torque is applied, the circular groove 16 can ensure that the contact between the torsion plate 10 and the main shaft 3 is more uniform, reducing the friction resistance caused by the uneven contact surface, thereby improving the accuracy and efficiency of torque transmission.

[0025] In some embodiments, two outer rings 13 are provided on the wrench body 1. The provision of the outer rings 13 facilitates connection and fixation with the device.

[0026] In some embodiments, a plurality of thread grooves 14 are provided on the wrench body 1 , and the thread grooves 14 are threadedly connected to corresponding bolts 5 , and the bolts 5 are used to fix the limit sleeve 4 on the main shaft 3 to ensure its stability during operation.

[0027] In some embodiments, a groove 12 is provided on one side of the torque plate 10, and the contact area between the torque plate 10 and other connecting components may be optimized, reducing the friction resistance caused by the uneven contact surface, thereby improving the accuracy and efficiency of torque transmission. The square hole 8 is located at one end of the wrench body, and its shape and size are designed to match the torsion rod 11 on the torque plate 10. In this way, the user can directly insert the torsion rod 11 on the torque plate 10 into the square hole 8 to achieve torque transmission and control of the wrench body 1.

[0028] Working principle or structural principle, when in use, the wrench body 1 is the main body of the entire tool, and is flexibly connected to the main shaft 3 through the bearing 2. This design ensures that the main body 1 wrench can rotate smoothly during use, reducing friction and resistance. The limit sleeve 4 is installed on the main shaft 3 to limit the stroke of the main shaft 3 to ensure that the wrench body 1 does not apply excessive force when tightening the nut, thereby protecting the nut and the wrench body 1 from damage. The bolt 5 is used to fix the limit sleeve 4 on the main shaft 3 to ensure its stability during work. The positioning rod 6 is inserted into the sleeve tube 7 to play a role of positioning and support. This design makes the wrench The hand body 1 can remain stable and not easy to shake when tightening the nut. The square hole 8 is located at one end of the wrench body. Its shape and size are designed to match the torsion bar 11 on the torque plate 10. In this way, the user can directly insert the torsion bar 11 on the torque plate 10 into the square hole 8 to achieve torque transmission and control of the wrench body 1. The locking part 9 is a key part of the wrench body 1. It directly contacts the nut to be locked. When the torque is applied by the torque plate 10, the torque is transmitted to the torsion bar 11 through the torque plate 10, and then further transmitted to the locking part 9 through the main shaft 3, thereby realizing the locking of the nut and achieving efficient and accurate locking operation.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A precision locking nut wrench, comprising a wrench body (1), characterized in that: Two bearings (2) are fixedly connected to the inner wall of the wrench body (1), and the inner sides of the inner rings of the two bearings (2) are welded with the same main shaft (3). The wrench body (1) is threadedly connected to a limiting sleeve (4) through multiple bolts (5). A support portion (15) is sleeved on the main shaft (3), and multiple positioning rods (6) are welded to one side of the support portion (15) in an annular shape. A sleeve pipe (7) is fixedly connected to the support portion (15), and multiple through holes are opened in an annular shape on the sleeve pipe (7). The sleeve pipe (7) is fixedly connected to the corresponding positioning rods (6) through the through holes. A locking portion (9) is provided on the right side of the wrench body (1), and the locking portion (9) is sleeved on the main shaft (3). Multiple square holes (8) are opened in an annular shape on the sleeve pipe (7). Torsion rods (11) are clamped on the square holes (8), and the ends of the multiple torsion rods (11) are fixedly connected to torsion plates (10).

2. A precision locking nut wrench according to claim 1, characterized in that: A circular groove (16) is provided on the torsion plate (10), and the torsion plate (10) is in movable contact with the main shaft (3) through the circular groove (16).

3. The precision locking nut wrench according to claim 1, characterized in that: Two outer rings (13) are provided on the wrench body (1).

4. The precision locking nut wrench according to claim 1, characterized in that: The wrench body (1) is provided with a plurality of thread grooves (14), and the thread grooves (14) are threadedly connected to corresponding bolts (5).

5. The precision locking nut wrench according to claim 1, characterized in that: A groove (12) is provided on one side of the torsion plate (10).

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