Automobile bolt tightening tool

Abstract

The utility model relates to the field of bolt assembly, and discloses an automobile bolt tightening tool which comprises a machine body, a groove is formed in the outer wall of the machine body, a motor is fixedly connected to the inner wall of the groove, a rotating shaft is fixedly connected to the output end of the motor, and a tightening device is fixedly connected to the end of the rotating shaft. A mounting groove is formed in the outer wall of the tightening device, a telescopic rod is arranged in the mounting groove, the outer wall of the telescopic rod is sleeved with a spring, the end of the spring is fixedly connected with a deviation rectifying ring, the inner surface of the deviation rectifying ring is fixedly connected with an air bag, and the side wall of the air bag is fixedly connected with a fixing plate. The surface of the machine body is fixedly connected with a small air pump, and the output end of the small air pump is fixedly connected with a connecting pipe. According to the utility model, the motor, the rotating shaft, the tightening device and other structures are arranged, so that a supporting and guiding function is provided for the bolt when the bolt is tightened, and the risk that the installation effect is reduced due to deviation when the bolt is tightened is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bolt assembly, and more particularly to automotive bolt tightening tools. Background Technology

[0002] The primary function of bolts is to connect two or more components together. In automobiles, bolts are commonly used to secure critical components such as the engine, chassis, and suspension system. Without bolts, these components cannot be firmly fixed together, significantly impacting vehicle stability and potentially posing safety hazards. Tightening tools are necessary to ensure efficient installation and guarantee the reliability and safety of bolted connections. By controlling the tightening torque, a reliable connection between the bolt and the connecting parts can be guaranteed, preventing connection failure or component damage due to insufficient or excessive tightening torque.

[0003] A search revealed that Chinese Patent Publication No. CN221792513U discloses an automotive bolt tightening tool. By setting up a connecting plate and an elastic support, after the elastic support is released from fixing the connecting plate as a whole, the connecting plate can be moved out from inside the handle, and then the nut to be installed can be inserted into the clamping space. The connecting plate extends the nut, making it easier for the operator to install and tighten bolts in confined spaces.

[0004] In the above technical solution, the connection plate and the elastic support are used to facilitate the installation and tightening of bolts in a narrow space. However, when installing bolts in a narrow space, the lack of support and guidance for the bolts may lead to bolt displacement and affect the tightening effect. Therefore, an automotive bolt tightening tool is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an automotive bolt tightening tool, which aims to improve the problem that the lack of bolt support and guidance function in existing automotive bolt tightening tools leads to the risk of bolt misalignment during installation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a car bolt tightening tool, comprising a body, a groove formed on the outer wall of the body, a motor fixedly connected to the inner wall of the groove, a rotating shaft fixedly connected to the output end of the motor, a tightening device fixedly connected to the end of the rotating shaft, an installation groove formed on the outer wall of the tightening device, a telescopic rod provided inside the installation groove, a spring sleeved on the outer wall of the telescopic rod, a correction ring fixedly connected to the end of the spring, an airbag fixedly connected to the inner surface of the correction ring, a fixing plate fixedly connected to the side wall of the airbag, a small air pump fixedly connected to the surface of the body, a connecting pipe fixedly connected to the output end of the small air pump, and a support assembly provided on the surface of the fixing plate.

[0007] As a further description of the above technical solution:

[0008] An electromagnet is fixedly connected to the inner wall of the mounting groove, a fixing groove is provided at the center of the electromagnet, and a magnetic column is fixedly connected to the end of the telescopic rod.

[0009] As a further description of the above technical solution:

[0010] The movable end of the telescopic rod is fixedly connected to the side wall of the correction ring, and the end of the connecting pipe away from the small air pump is fixedly connected to the inner wall of the airbag.

[0011] As a further description of the above technical solution:

[0012] The connecting pipe has a partially retractable section.

[0013] As a further description of the above technical solution:

[0014] The support assembly includes a clearance groove, the inner wall of which is rotatably connected to a roller.

[0015] As a further description of the above technical solution:

[0016] The clearance groove is located on the side of the fixing plate away from the airbag.

[0017] As a further description of the above technical solution:

[0018] The side of the magnetic column closest to the telescopic rod is fixedly connected to the end of the spring furthest from the correction ring.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the fixing groove is adapted to the outer wall of the magnetic column.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by providing a motor, rotating shaft, tightener, telescopic rod, spring, correction ring, airbag, fixing plate and support assembly, the bolt can be supported and guided when tightening the bolt, thereby reducing the risk of deviation during bolt tightening and resulting in reduced installation effect.

[0023] 2. In this utility model, by setting up an electromagnet, a fixing groove and a magnetic column, the alignment ring and the tightening device can be quickly disassembled and assembled, which is convenient for disassembling and assembling the alignment ring when replacing the tightening device. Attached Figure Description

[0024] Figure 1 This is a side view of the main structure of an automotive bolt tightening tool proposed in this utility model;

[0025] Figure 2 This is a partial cross-sectional view of the main structure of an automotive bolt tightening tool proposed in this utility model;

[0026] Figure 3 This is a partial cross-sectional view of an automotive bolt tightening tool proposed in this utility model;

[0027] Figure 4 This utility model proposes a tool for tightening automotive bolts. Figure 4 Enlarged view of region A in the middle;

[0028] Figure 5 This utility model proposes a tool for tightening automotive bolts. Figure 4 Enlarged view of region B in the middle;

[0029] Figure 6 This is a side view schematic diagram of the correction ring structure of an automotive bolt tightening tool proposed in this utility model.

[0030] Legend:

[0031] 1. Body; 2. Groove; 3. Motor; 4. Shaft; 5. Tightener; 6. Mounting slot; 7. Telescopic rod; 8. Spring; 9. Correcting ring; 10. Airbag; 11. Fixing plate; 12. Clearance groove; 13. Roller; 14. Small air pump; 15. Connecting pipe; 16. Electromagnet; 17. Fixing slot; 18. Magnetic column. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3This utility model provides an embodiment of an automotive bolt tightening tool, comprising a body 1, a groove 2 formed on the outer wall of the body 1, a motor 3 fixedly connected to the inner wall of the groove 2, a rotating shaft 4 fixedly connected to the output end of the motor 3, a tightening device 5 fixedly connected to the end of the rotating shaft 4, an installation groove 6 formed on the outer wall of the tightening device 5, a telescopic rod 7 disposed inside the installation groove 6, and a spring 8 sleeved on the outer wall of the telescopic rod 7, wherein three sets of installation grooves 6, telescopic rods 7 and springs 8 are provided, and the three sets of installation grooves 6, telescopic rods 7 and springs 8 are connected together. Springs 8 are arranged in a circular array with the center of the correction ring 9 as the axis of symmetry. The correction ring 9 is fixedly connected to the end of spring 8. Airbags 10 are fixedly connected to the inner surface of the correction ring 9. The number of airbags 10 is equal to the number of mounting slots 6. The three sets of airbags 10 are connected to each other by hoses. Fixing plates 11 are fixedly connected to the side walls of airbags 10. Small air pumps 14 are fixedly connected to the surface of the body 1. Connecting pipes 15 are fixedly connected to the output end of small air pumps 14. Support components are provided on the surface of fixing plates 11.

[0034] Reference Figures 4-6 The movable end of the telescopic rod 7 is fixedly connected to the side wall of the correction ring 9. The end of the connecting pipe 15 away from the small air pump 14 is fixedly connected to the inner wall of the airbag 10. A local area of ​​the connecting pipe 15 is telescopic. The connecting pipe 15 in the local telescopic area can deform when the correction ring 9 moves. The support component includes a relief groove 12. The relief groove 12 is opened on the side of the fixed plate 11 away from the airbag 10. The inner wall of the relief groove 12 is rotatably connected to the roller 13. Several sets of rollers 13 are arranged, and the several sets of rollers 13 are evenly distributed in the relief groove 12 on each set of fixed plates 11.

[0035] Reference Figures 5-6 An electromagnet 16 is fixedly connected to the inner wall of the mounting groove 6. A fixing groove 17 is provided at the center of the electromagnet 16. The inner wall of the fixing groove 17 is adapted to the outer wall of the magnetic column 18. A magnetic column 18 is fixedly connected to the end of the telescopic rod 7. The side of the magnetic column 18 near the telescopic rod 7 is fixedly connected to the end of the spring 8 away from the correction ring 9. After the magnetic column 18 is inserted into the fixing groove 17, the electromagnet 16 is energized and can magnetically attract the magnetic column 18.

[0036] Working principle: When installing bolts, the bolts are passed through the inside of the alignment ring 9 and then inserted into the slot of the tightener 5. The small air pump 14 is turned on to draw in air, which is then filled into the air bladder 10 through the connecting pipe 15. The air is then distributed to each set of air bladders 10 through the connected hose. The air bladders 10 gradually inflate until the surface of each set of rollers 13 is in contact with the bolt. The operator holds the machine body 1, aligns the bolt with the installation port, and starts the motor 3. The motor 3 drives the rotating shaft 4 to rotate, causing the tightener 5 to screw the bolt into the installation port. As the bolt is screwed in, it rotates, and the rollers 13 rotate simultaneously due to contact with the bolt. This reduces the friction caused by contact with the bolt while supporting it. As the bolt continues to be screwed in, the telescopic rod 7 and the spring 8 retract, causing the alignment ring 9 to gradually approach the tightener 5, thus providing support and guidance for the bolt during installation and preventing misalignment.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automotive bolt tightening tool, comprising a body (1), characterized in that: The outer wall of the body (1) is provided with a groove (2), the inner wall of the groove (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a rotating shaft (4), the end of the rotating shaft (4) is fixedly connected to a tightening device (5), the outer wall of the tightening device (5) is provided with an installation groove (6), the inside of the installation groove (6) is provided with a telescopic rod (7), the outer wall of the telescopic rod (7) is fitted with a spring (8), the end of the spring (8) is fixedly connected to a correction ring (9), the inner surface of the correction ring (9) is fixedly connected to an airbag (10), the side wall of the airbag (10) is fixedly connected to a fixing plate (11), the surface of the body (1) is fixedly connected to a small air pump (14), the output end of the small air pump (14) is fixedly connected to a connecting pipe (15), and the surface of the fixing plate (11) is provided with a support component.

2. The automotive bolt tightening tool according to claim 1, characterized in that: An electromagnet (16) is fixedly connected to the inner wall of the mounting groove (6), and a fixing groove (17) is provided at the center of the electromagnet (16). A magnetic column (18) is fixedly connected to the end of the telescopic rod (7).

3. The automotive bolt tightening tool according to claim 1, characterized in that: The movable end of the telescopic rod (7) is fixedly connected to the side wall of the correction ring (9), and the end of the connecting pipe (15) away from the small air pump (14) is fixedly connected to the inner wall of the airbag (10).

4. The automotive bolt tightening tool according to claim 1, characterized in that: The connecting pipe (15) is partially retractable.

5. The automotive bolt tightening tool according to claim 1, characterized in that: The support assembly includes a relief groove (12), the inner wall of which is rotatably connected to a roller (13).

6. The automotive bolt tightening tool according to claim 5, characterized in that: The clearance groove (12) is located on the side of the fixing plate (11) away from the airbag (10).

7. The automotive bolt tightening tool according to claim 2, characterized in that: The magnetic column (18) is fixedly connected to the end of the spring (8) away from the correction ring (9) on the side near the telescopic rod (7).

8. The automotive bolt tightening tool according to claim 2, characterized in that: The inner wall of the fixing groove (17) is adapted to the outer wall of the magnetic column (18).

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