Electric tightening device for nuts

Abstract

The utility model belongs to the technical field of nut disassembling and assembly tools, and is particularly a nut electric loosening and tightening device, comprising a seat plate, a forward and reverse motor, a torsion shaft, a torsion sleeve, an electric telescopic cylinder and a bottom rod, wherein the upper end of the seat plate is fixedly mounted with the forward and reverse motor, the output end of the forward and reverse motor is fixedly connected with the torsion shaft, the bottom end of the torsion shaft is provided with a torsion sleeve, and the bottom end of the torsion sleeve is provided with a hexagonal groove; the left bottom end of the seat plate is provided with a bottom rod, and the right side of the bottom rod is provided with a semi-hexagonal groove. In the process of tightening and loosening the nut on the bolt through the upper forward and reverse motor, the torsion shaft and the torsion sleeve with the hexagonal groove, the utility model can further clamp the bolt head through the semi-hexagonal groove on the bottom rod at the bottom, thereby preventing the bolt from rotating with the nut during the process of tightening and loosening the nut, so as to facilitate the tightening and loosening of the nut on the bolt, save labor and be convenient to use, and have better use.

Description

Technical Field

[0001] The utility model belongs to the technical field of nut disassembling and assembling tools, and in particular relates to an electric nut loosening and tightening device. Background Art

[0002] As we all know, nuts, also known as nuts, are a commonly used fixing component with a hole in the center and a number of threads on the inside of the hole. Nuts are often used together with bolts of the same size to fix the relevant joints. The working principle of nuts is to use the threads between the nut and the bolt for screwing connection.

[0003] However, when two or more components are currently used in connection through bolt locking, when the nut on the bolt is screwed in, locked or loosened, the nut during the rotation process is easy to rotate with the bolt, and the tightening operation of the nut on the bolt cannot be well achieved. Instead, one wrench is used to tighten the bolt head and the other wrench is used to tighten the nut, which is not only easy to loosen during the tightening process, but also consumes a lot of manpower and is not suitable for use.

[0004] To this end, the utility model proposes an electric nut tightening device, which can further clamp the bolt head through the semi-hexagonal groove on the bottom rod during the process of driving the nut on the bolt to tighten or loosen through the upper forward and reverse motor, the torsion shaft and the torsion sleeve with the hexagonal groove, so as to prevent the bolt from rotating with the nut during the process of tightening the nut, so as to facilitate the tightening and loosening of the nut on the bolt, save labor and be convenient to use, and have better performance. Utility Model Content

[0005] In order to solve the above-mentioned problems existing in the prior art, the utility model provides an electric nut tightening device. In the process of tightening and loosening the nut on the bolt through the upper forward and reverse motor, the torsion shaft and the torsion sleeve with the hexagonal groove, the bolt head can be further clamped by the semi-hexagonal groove on the bottom rod at the bottom end, so as to prevent the bolt from rotating with the nut during the process of tightening the nut, so as to facilitate the tightening and loosening of the nut on the bolt, which is labor-saving and convenient, and has better use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nut electric tightening device, comprising a seat plate, a forward and reverse motor, a torsion shaft, a torsion sleeve, an electric telescopic cylinder and a bottom rod, the upper end of the seat plate is fixedly mounted with a forward and reverse motor, the output end of the forward and reverse motor is fixedly connected with a torsion shaft, the bottom end of the torsion shaft is provided with a torsion sleeve, and the bottom end of the torsion sleeve is provided with a hexagonal groove;

[0007] The torsion shaft has an axial cavity formed inside, and the torsion sleeve is slidably connected to the torsion shaft, a spring is fixedly connected between the upper end of the torsion sleeve and the upper end of the axial cavity, side slots are formed on both sides of the torsion shaft, and side limit blocks are integrally formed on both sides of the upper end of the torsion sleeve, and the side limit blocks are slidably connected to the side slots;

[0008] A bottom rod is provided at the left bottom end of the seat plate, and a semi-hexagonal groove is provided on the right side of the bottom rod;

[0009] An electric telescopic cylinder is fixedly installed on the left bottom end of the seat plate, and the output end of the electric telescopic cylinder is fixedly connected to the upper end of the bottom rod.

[0010] As a preferred technical solution of the electric nut tightening device of the utility model, a fixing block is fixedly connected to the upper left end of the seat plate, and a handle is fixedly connected to the left side of the fixing block.

[0011] As a preferred technical solution of the electric nut tightening device of the utility model, a handle sleeve is fixedly connected to the outer wall of the handle, and the handle sleeve is a rubber component.

[0012] As a preferred technical solution of the electric nut tightening device of the utility model, the side limit blocks and the side slots are symmetrically distributed.

[0013] As a preferred technical solution of the electric nut tightening device of the utility model, the inner diameter of the semi-hexagonal slot is the same as that of the hexagonal slot.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can further clamp the bolt head through the semi-hexagonal groove on the bottom rod during the process of tightening and loosening the nut on the bolt through the upper forward and reverse motor, the torsion shaft and the torsion sleeve with the hexagonal groove, so as to prevent the bolt from rotating with the nut during the process of tightening and loosening the nut, so as to facilitate the tightening and loosening of the nut on the bolt, save labor and be convenient to use, and have better use.

[0016] The torsion sleeve of the utility model can also move upward or downward elastically relative to the torsion shaft, so that the nut on the bolt can be loosened or tightened up and down during the process of loosening or tightening the nut on the bolt, which is simple and convenient and has better use.

[0017] The bottom rod of the utility model can also adjust the distance with the torsion sleeve through the electric telescopic cylinder, so as to facilitate the tightening and loosening operation of nuts on bolts on parts with different thicknesses. The utility model is flexible to use and has better overall use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the connection between the torsion sleeve and the torsion shaft of the utility model;

[0021] Figure 3 This is a schematic diagram of the semi-hexagonal slot structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the use of the utility model.

[0023] In the figure: 1. seat plate; 2. forward and reverse motors; 3. torsion shaft; 4. shaft cavity; 5. spring; 6. side slot; 7. torsion sleeve; 8. side limit block; 9. hexagonal slot; 10. fixing block; 11. handle; 12. handle sleeve; 13. electric telescopic cylinder; 14. bottom rod; 15. semi-hexagonal slot; 16. component one; 17. component two; 18. bolt; 19. nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] See also Figure 1-4 The utility model provides the following technical solutions: a nut electric tightening and loosening device, comprising a seat plate 1, a forward and reverse motor 2, a torsion shaft 3, a torsion sleeve 7, an electric telescopic cylinder 13 and a bottom rod 14, the upper end of the seat plate 1 is fixedly mounted with the forward and reverse motor 2, the output end of the forward and reverse motor 2 is fixedly connected with the torsion shaft 3, the bottom end of the torsion shaft 3 is provided with a torsion sleeve 7, and the bottom end of the torsion sleeve 7 is provided with a hexagonal groove 9, wherein the forward and reverse motor 2 can drive the torsion shaft 3 and the torsion sleeve 7 to rotate, and the hexagonal groove 9 can engage with the nut 19, thereby driving the nut 19 to rotate and loosen.

[0026] Reference Figure 2 As shown, further, a torsion shaft 3 is provided inside the torsion shaft 3, and a torsion sleeve 7 is slidably connected to the torsion shaft 3, a spring 5 is fixedly connected between the upper end of the torsion sleeve 7 and the upper end of the shaft cavity 4, side slots 6 are provided on both sides of the torsion shaft 3, and side limit blocks 8 are integrally formed on both sides of the upper end of the torsion sleeve 7, the side limit blocks 8 are slidably connected to the side slots 6, and the side limit blocks 8 and the side slots 6 are symmetrically distributed, wherein the torsion sleeve 7 can elastically move up and down relative to the spring 5 in the shaft cavity 4 of the torsion shaft 3, and can be guided and limited by the side limit blocks 8 moving up and down relative to the side slots 6, so as to enable the nut 19 to be tightened and loosened relative to the bolt 18.

[0027] Reference Figure 1 , Figure 3 and Figure 4As shown, further, a bottom rod 14 is provided at the bottom left end of the seat plate 1, and a semi-hexagonal groove 15 is opened on the right side of the bottom rod 14, wherein the semi-hexagonal groove 15 can clamp the head of the column bolt 18 to prevent the bolt 18 from rotating with the rotation of the nut 19.

[0028] Reference Figure 1 and Figure 4 As shown, further, an electric telescopic cylinder 13 is fixedly installed on the left bottom end of the seat plate 1, and the output end of the electric telescopic cylinder 13 is fixedly connected to the upper end of the bottom rod 14, wherein the electric telescopic cylinder 13 is used to adjust the up and down movement of the bottom rod 14 with the semi-hexagonal groove 15.

[0029] Reference Figure 1 and Figure 4 As shown, further, a fixing block 10 is fixedly connected to the upper left end of the seat plate 1, a handle 11 is fixedly connected to the left side of the fixing block 10, a grip cover 12 is fixedly connected to the outer wall of the grip 11, and the grip cover 12 is a rubber component, wherein the fixing block 10 is the fixed part of the grip 11, and the grip 11 with the rubber grip cover 12 is used to facilitate the handheld operation of the device.

[0030] In the present embodiment, during the process of tightening or loosening the nut 19 on the bolt 18 by the upper forward and reverse motor 2, the torsion shaft 3 and the torsion sleeve 7 with the hexagonal groove 9, the utility model can further clamp the head of the bolt 18 through the semi-hexagonal groove 15 on the bottom rod 14 at the bottom, thereby preventing the bolt 18 from rotating with the nut 19 during the process of tightening or loosening the nut 19, so that the nut 19 on the bolt 18 can be tightened or loosened, which is labor-saving and convenient, and has better use.

[0031] The torsion sleeve 7 of the utility model can also move elastically up or down relative to the torsion shaft 3, so that the nut 19 on the bolt 18 can be loosened or tightened up and down during the process of loosening or tightening the nut 19 on the bolt 18, which is simple and convenient and has better use.

[0032] The bottom rod 14 of the utility model can also adjust the distance with the torsion sleeve 7 through the electric telescopic cylinder 13, so as to tighten the nuts 19 on the bolts 18 on parts with different thicknesses, and the utility model is flexible to use and has better overall use.

[0033] The use process and working principle of the utility model are as follows: first, the nut 19 is initially screwed onto the bolt 18 by hand for initial fixation, and then the device is held by the handle 11 with the handle sleeve 12, so that the hexagonal groove 9 at the bottom end of the torsion sleeve 7 is clamped on the nut 19, and the semi-hexagonal groove 15 is located below the bolt 18, and then the external power supply starts the electric telescopic cylinder 13, and the electric telescopic cylinder 13 drives the bottom rod 14 to move upward, so that the semi-hexagonal groove 15 clamps the head of the bolt 18, and then the external power supply starts the forward and reverse motor 2, and the forward and reverse motor 2 drives the torsion shaft 3 and the torsion sleeve 7 to rotate, and the rotating torsion shaft 3 and the torsion sleeve 7 can drive the nut 19 to rotate relative to the bolt 18, and in this process, the torsion sleeve 7 can move downward elastically relative to the shaft cavity 4 through the spring 5, and move downward relative to the side slot 6 through the side limit block 8 for guide and limit, so that the nut 19 is tightened on the bolt 18 and locks the second component 17 and the first component 16;

[0034] When the nut 19 needs to be removed from the bolt 18 in the future, the hexagonal groove 9 at the bottom end of the torque sleeve 7 is clamped outside the nut 19, and the bolt 18 is clamped on the bolt head of the bolt 18, and then the forward and reverse motors 2 are used to drive the torsion shaft 3 and the torque sleeve 7 to rotate, thereby driving the nut 19 to rotate relative to the bolt 18, and in this process, the torque sleeve 7 can slide upward relative to the torsion shaft 3, thereby removing the nut 19 from the bolt 18 to release the locking state of component one 16 and component two 17.

[0035] In addition, the contents not described in detail in this embodiment are all within the scope of prior art and common knowledge.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. 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. An electric nut tightening device, characterized in that: The invention comprises a seat plate (1), a forward and reverse motor (2), a torsion shaft (3), a torsion sleeve (7), an electric telescopic cylinder (13) and a bottom rod (14); the forward and reverse motor (2) is fixedly mounted on the upper end of the seat plate (1); the output end of the forward and reverse motor (2) is fixedly connected to the torsion shaft (3); the bottom end of the torsion shaft (3) is provided with a torsion sleeve (7); and the bottom end of the torsion sleeve (7) is provided with a hexagonal groove (9); The torsion shaft (3) has an interior with an axial cavity (4), and the torsion sleeve (7) is slidably connected to the torsion shaft (3), a spring (5) is fixedly connected between the upper end of the torsion sleeve (7) and the upper end of the axial cavity (4), side slots (6) are provided on both sides of the torsion shaft (3), and side limit blocks (8) are integrally formed on both sides of the upper end of the torsion sleeve (7), and the side limit blocks (8) are slidably connected to the side slots (6); A bottom rod (14) is provided at the bottom end of the left side of the seat plate (1), and a semi-hexagonal groove (15) is provided on the right side of the bottom rod (14); An electric telescopic cylinder (13) is fixedly mounted on the left bottom end of the seat plate (1), and the output end of the electric telescopic cylinder (13) is fixedly connected to the upper end of the bottom rod (14).

2. The electric nut tightening device according to claim 1, characterized in that: A fixing block (10) is fixedly connected to the upper left end of the seat plate (1), and a handle (11) is fixedly connected to the left side of the fixing block (10).

3. The electric nut tightening device according to claim 2, characterized in that: A grip cover (12) is fixedly connected to the outer wall of the grip (11) at all four sides, and the grip cover (12) is a rubber component.

4. The electric nut tightening device according to claim 1, characterized in that: The side limit blocks (8) and the side slots (6) are symmetrically distributed.

5. The electric nut tightening device according to claim 1, characterized in that: The inner diameter of the semi-hexagonal groove (15) is the same as that of the hexagonal groove (9).

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