Intelligent electric tightening wrench

By incorporating a torque sensor and control module into the electric wrench, quantitative torque output and information management are achieved, solving the problem that traditional tools cannot meet the requirements of intelligent tightening and improving tightening efficiency and quality.

CN223917819UActive Publication Date: 2026-02-17AVIC SHAANXI DONGFANG AVIATION INSTR
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Patent Information

Application Number
CN202423304583.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-02-17
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Traditional power tools cannot achieve constant torque output, thus failing to meet the requirements of Industry 4.0 for intelligent tightening, and tightening efficiency and quality are difficult to guarantee.

Method used

An intelligent electric tightening wrench was designed, which has a built-in torque sensor, a DC brushless motor, a drive module and a control module. It is powered by a battery pack, has quantitative torque output and indication functions, and supports communication with the factory management system.

Benefits of technology

It achieves quantitative torque output, improves the controllability and efficiency of the tightening process, supports factory information management, and meets the smart factory requirements of Industry 4.0.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223917819U_ABST
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Abstract

The utility model discloses an intelligent electric tightening wrench, which relates to the technical field of fastening assembly tools and comprises a speed reducer, a torque sensor, a direct-current brushless motor, a code scanning module, a color-changing indicating lamp, a display key unit, a driving module, a control module, a battery pack, a shell, a start-stop key, a reversing key, a lighting piece and a USB (Universal Serial Bus) interface, the two ends of the torque sensor are both of a tooth structure, one end of the torque sensor is meshed with the shell, the end, away from the shell, of the torque sensor is meshed with the speed reducer, and the speed reducer is arranged at the output end of the shell. The electric tool can be powered in a battery pack mode, a torque sensor, a direct-current brushless motor, a driving module, a control module, a start-stop key, a color-changing indicator lamp and the like are arranged in the electric tool, the electric tool can output quantitative torque to a target bolt, the overall structure is in a pistol shape, and the interior of the tool is divided into the driving module and the control module. The driving module can control execution of the direct-current brushless motor.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fastening assembly tool technical field especially, relates to an intelligent electric tightening wrench. BACKGROUND

[0002] With the development of industry, the requirements of automobile, aviation, aerospace, ship and many other fields on assembly quality, process route and efficiency are higher and higher, and scientific process method, stable and reliable assembly tool and standardized information management mode can greatly improve the stability and reliability of key components. The traditional electric tool cannot achieve the goal of fixed torque and intelligent tightening, and cannot provide effective support for the promotion of factory industry 4.0, therefore, the utility model patent researches an intelligent electric tightening wrench, which is mainly suitable for the work station with small bolt output torque, has a torque sensor inside, can realize fixed torque output, has indicating function, can effectively transmit the tightening result to the worker, and can transmit the output information to the server of the factory through external communication function, and responds to the requirements of factory industry 4.0 intelligent factory. SUMMARY

[0003] The embodiment of the application provides an intelligent electric tightening wrench, which is powered by a battery pack, has a built-in torque sensor, a DC brushless motor, a driving module, a control module, a start-stop button, a color-changing indicator light and the like, can output a fixed amount of torque to the target bolt, has a pistol type overall structure, and has a driving module and a control module inside the tool, the driving module can control the DC brushless motor to execute and output different sizes of torque, the control module can receive user instructions and issue tasks to the driving module to realize adjustment of the tightening process, and the operation is convenient.

[0004] The embodiment of the application provides an intelligent electric tightening wrench, which includes a speed reducer, a torque sensor, a DC brushless motor, a code scanning module, a color-changing indicator light, a display button unit, a driving module, a control module, a battery pack, a shell, a start-stop button, a reversing button, an illuminating part and a USB interface.

[0005] Both ends of the torque sensor are tooth structures, one end of the torque sensor is engaged with the shell, and the other end of the torque sensor away from the shell is engaged with the speed reducer, and the speed reducer is arranged on the output end of the shell.

[0006] The DC brushless motor is arranged on the upper side of the shell, the display button unit is arranged on the side of the DC brushless motor away from the speed reducer, and the display button unit is provided with the color-changing indicator light.

[0007] The code scanning module is arranged on the upper side of the DC brushless motor.

[0008] The driving module is arranged below the shell, and the control module and the USB interface are arranged on one side of the driving module.

[0009] The battery pack is arranged below the driving module, and the start-stop button is arranged on one side of the driving module.

[0010] The reversing button is arranged on one side of the shell, and the illuminating part is arranged on the lower side of the speed reducer.

[0011] As an improvement, the control module is provided with a wireless unit.

[0012] As an improvement, the code scanning module and the color-changing indicator light are connected to the display button unit through wires, and the display button unit is connected to the control module through wires.

[0013] The control module and the USB interface are connected through wires.

[0014] As an improvement, the illuminating part, the torque sensor, the direct-current brushless motor, the start-stop button and the reversing button are connected to the driving module through wires, and the driving module is connected to the control module through wires.

[0015] The driving module and the control module are electrically connected to the battery pack.

[0016] As an improvement, the illuminating part includes an illuminating lamp and a deformation block.

[0017] The deformation block is fixed between the illuminating lamp and the speed reducer.

[0018] The deformation block is made of rubber.

[0019] As an improvement, the deformation block has two.

[0020] The deformation block is an air bag structure, and the deformation block is connected to the inflation structure.

[0021] As an improvement, the two deformation blocks are sequentially arranged along the axis direction of the output end of the direct-current brushless motor.

[0022] One or more technical solutions provided in the embodiments have at least the following technical effects or advantages:

[0023] Firstly, the battery pack is used to supply power to the electric tool, and the torque sensor, the direct-current brushless motor, the driving module, the control module, the start-stop button, the color-changing indicator light and the like are built-in, which can output a quantitative torque to the target bolt, the overall structure is a pistol type, the tool is internally divided into the driving module and the control module, the driving module can control the direct-current brushless motor to execute and output different sizes of torque, the control module can receive user instructions and issue tasks to the driving module to adjust the tightening process, and the operation is convenient.

[0024] Secondly, the deformable nature of the deformable block allows for arbitrary adjustment of the lighting angle of the lamp, enabling adaptive adjustments based on usage conditions, thereby improving the efficiency of disassembling or installing bolts.

[0025] Thirdly, the deformable block is an inflatable airbag structure that can be adaptively adjusted according to usage conditions, so that the lighting lamp is always in a stable position and illuminates the bolts, further improving the efficiency of disassembling or installing bolts. Attached Figure Description

[0026] Figure 1 This is a front view of an intelligent electric tightening wrench according to the present invention;

[0027] Figure 2 This is a schematic diagram of the lighting component of an intelligent electric tightening wrench according to this utility model;

[0028] Figure 3 This is a schematic diagram showing the installation of two deformation blocks in an intelligent electric tightening wrench according to this utility model;

[0029] Figure 4 This is a schematic diagram of the tilted state of the lighting lamp of the intelligent electric tightening wrench of this utility model.

[0030] In the diagram: 1. Reducer; 2. Torque sensor; 3. DC brushless motor; 4. Barcode scanning module; 5. Color-changing indicator light; 6. Display button unit; 7. Drive module; 8. Control module; 9. Battery pack; 10. Housing; 11. Start / Stop button; 12. Reversing button; 13. Lighting component; 131. Lighting lamp; 132. Deformation block; 14. USB interface. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more comprehensive description of this application will be given below with reference to the accompanying drawings.

[0032] Example 1: As Figure 1 As shown, this application discloses an intelligent electric tightening wrench, which includes a reducer 1, a torque sensor 2, a DC brushless motor 3, a barcode scanning module 4, a color-changing indicator light 5, a display button unit 6, a drive module 7, a control module 8, a battery pack 9, a housing 10, a start / stop button 11, a reversing button 12, an illumination element 13, and a USB interface 14.

[0033] Both ends of the torque sensor 2 are toothed structures. One end of the torque sensor 2 is engaged with the housing 10, and the end of the torque sensor 2 away from the housing 10 is engaged with the reducer 1. The reducer 1 is located on the output end of the housing 10.

[0034] The direct current brushless motor 3 is arranged on the upper side of the shell 10, the display button unit 6 is arranged on the side of the direct current brushless motor 3 away from the speed reducer 1, and the display button unit 6 is provided with the color-changing indicator lamp 5;

[0035] The code scanning module 4 is arranged on the upper side of the direct current brushless motor 3;

[0036] The driving module 7 is arranged below the shell 10, and the control module 8 and the USB interface 14 are both arranged on one side of the driving module 7;

[0037] The code scanning module 4 and the color-changing indicator lamp 5 are both connected with the display button unit 6 through wires, and the display button unit 6 is connected with the control module 8 through wires;

[0038] The control module 8 and the USB interface 14 are connected through wires;

[0039] The battery pack 9 is arranged below the driving module 7, and the start-stop button 11 is arranged on one side of the driving module 7;

[0040] The reversing button 12 is arranged on one side of the shell 10, and the illuminating part 13 is arranged on the lower side of the speed reducer 1;

[0041] The illuminating part 13, the torque sensor 2, the direct current brushless motor 3, the start-stop button 11 and the reversing button 12 are all connected with the driving module 7 through wires, and the driving module 7 is connected with the control module 8 through wires;

[0042] The driving module 7 and the control module 8 are both electrically connected with the battery pack 9;

[0043] The control module 8 is provided with a wireless unit.

[0044] The wrench is powered by the battery pack 9, which can be divided into 18V or 36V, and can provide power to the electric tool according to different scenes. The driving module 7 is responsible for powering the torque sensor 2 and collecting the feedback torque signal, and at the same time drives the DC brushless motor 3 to run, drives the reducer 1 to realize torque amplification, and combines the torque signal to control the operation mode of the DC brushless motor 3, so as to realize accurate output torque. The control module 8 has a key, a display screen, and can realize information interaction with the operator. The control module 8 and the driving module 7 are connected through a serial port. The control module 8 sends control parameters to the driving module 7 to change the operation process of the tool. At the same time, the driving module 7 also feeds back the tightening result to the control module 8. The driving module 7 is also equipped with a color-changing indicator light 5, which will be controlled to light up according to the tightening result, prompting the operator. The control module 8 also provides a USB interface 14 and a wireless interface. The wireless interface can be replaced with different wireless methods according to the user's on-site situation to meet the different connection needs of the factory. The user can send and receive data to the control module 8 through the interface and connect with the management system. The overall wrench is in a gun type structure, which can be held with one hand, and is suitable for most workstations with small torque demand and high precision requirements. The tool is also equipped with a code scanning module 4, which can better realize the linkage with the assembly site management system. By scanning the two-dimensional code on the site, the tightening information can be directly retrieved to quickly complete the tool setting. The lighting 13 is controlled by the driving module 7. The lighting mode of the lighting 13 can be sent to the driving module 7 through the control module 8 to control the lighting 13 to light up in different ways to meet the needs of different operating sites.

[0045] The electric tool is powered by the battery pack 9, which is internally provided with a torque sensor 2, a DC brushless motor 3, a driving module 7, a control module 8, a start-stop button 11, a color-changing indicator light 5, etc. It can output a fixed amount of torque to the target bolt. The overall structure is a pistol type. The tool is internally divided into a driving module 7 and a control module 8. The driving module 7 can control the DC brushless motor 3 to execute and output different sizes of torque. The control module 8 can receive user instructions and send tasks to the driving module 7 to adjust the tightening process. It is convenient to operate.

[0046] In use, the lighting 13 improves the lighting to meet the needs of different operating sites. However, when used in low brightness places, the situation around the bolt being observed, disassembled or installed needs to be constantly changed. Only by manually adjusting the direction of the entire device can the illumination angle of the lighting 13 be adjusted. Accordingly, the scheme of example one is improved as shown in Figure 2 .

[0047] The lighting 13 includes a lighting lamp 131 and a deformation block 132.

[0048] The illumination lamp 131 is fixed with the reducer 1 through the deformation block 132;

[0049] The deformation block 132 is made of rubber.

[0050] When the device is used, the position of the illumination lamp 131 can be adjusted manually in the case of dismounting or mounting the bolt around the illumination lamp 131.

[0051] The illumination angle of the illumination lamp 131 can be adjusted at will through the deformability of the deformation block 132, and the illumination lamp 131 can be adjusted adaptively according to the use condition, so that the efficiency of dismounting or mounting the bolt is improved.

[0052] In the embodiment two, the illumination direction and angle of the illumination lamp 131 are adjusted manually, but the position of the illumination lamp 131 needs to be stabilized manually, which reduces the stability during the work. Figures 3-4 As shown in the embodiment three,

[0053] The two deformation blocks 132 are distributed along the axis direction of the output end of the direct-current brushless motor 3.

[0054] The deformation block 132 is a gas bag structure, and the deformation block 132 is connected with the inflation structure.

[0055] The inflation structure is a prior art, and details are not described herein.

[0056] When the device is used, the position of the illumination lamp 131 can be adjusted manually in the case of dismounting or mounting the bolt around the illumination lamp 131.

[0057] The deformation block 132 is a gas bag structure that can be inflated, and the illumination lamp 131 can be adjusted adaptively according to the use condition, so that the position of the illumination lamp 131 is stabilized, the bolt is illuminated, and the efficiency of dismounting or mounting the bolt is further improved.

[0058] The above only describes preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A smart electric tightening wrench, comprising a reducer (1), a torque sensor (2), a direct current brushless motor (3), characterized in that, Also include a code scanning module (4), color changing indicator light (5), display key unit (6), drive module (7), control module (8), battery pack (9), shell (10), start-stop button (11), lighting (13) and USB interface (14); The lighting (13), torque sensor (2), direct current brushless motor (3), start-stop button (11) are connected with drive module (7) through wires, drive module (7) is connected with control module (8) through wires; The drive module (7) and control module (8) are electrically connected with battery pack (9); Both ends of the torque sensor (2) are tooth structures, one end of the torque sensor (2) is engaged on the shell (10), and the other end of the torque sensor (2) away from the shell (10) is engaged on the speed reducer (1), and the speed reducer (1) is arranged on the output end of the shell (10); The direct current brushless motor (3) is arranged on the upper side of the shell (10), the display key unit (6) is arranged on the side of the direct current brushless motor (3) away from the speed reducer (1), and the display key unit (6) is provided with a color changing indicator light (5); The code scanning module (4) is arranged on the upper side of the direct current brushless motor (3); The drive module (7) is arranged below the shell (10), and the control module (8) and the USB interface (14) are arranged on one side of the drive module (7); The battery pack (9) is arranged below the drive module (7), and the start-stop button (11) is arranged on one side of the drive module (7); The reversing key (12) is arranged on one side of the shell (10), and the lighting (13) is arranged on the lower side of the speed reducer (1).

2. The intelligent electrically powered tightening wrench of claim 1, wherein, The control module (8) is provided with a wireless unit.

3. The intelligent electrically powered tightening wrench of claim 1, wherein, The code scanning module (4) and the color changing indicator light (5) are connected with the display key unit (6) through wires, and the display key unit (6) is connected with the control module (8) through wires; The control module (8) and the USB interface (14) are connected through wires.

4. The intelligent electrically powered tightening wrench of claim 1, wherein, The lighting (13) comprises a lighting lamp (131) and a deformation block (132); The deformation block (132) is fixed between the lighting lamp (131) and the speed reducer (1); The deformation block (132) is made of rubber material.

5. The intelligent electrically powered tightening wrench of claim 4, wherein, The deformation block (132) has two; The deformation block (132) is a gas bag structure, and the deformation block (132) is connected with the inflation structure.

6. The intelligent electrically powered tightening wrench of claim 5, wherein, Two deformation blocks (132) are sequentially distributed along the axis direction of the output end of the direct current brushless motor (3).