Intelligent electric screwdriver for machine

By integrating torque sensors and intelligent industrial controllers in electric screwdrivers, multi-stage programming and precise torque control are achieved, solving the problem that existing electric screwdrivers cannot adapt to complex process requirements and cannot accurately control torque, and improving assembly accuracy and reliability.

CN119871284AInactive Publication Date: 2025-04-25KENKEN MECHANICAL & ELECTRICAL TECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202510246669.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2025-04-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing electric screwdrivers lack multi-stage programming capabilities, cannot adapt to complex tightening process requirements, and cannot accurately control torque, resulting in excessive or insufficient screw tightening in high-precision assembly tasks, affecting product quality and service life.

Method used

Through the integrated torque sensor and intelligent industrial controller, multi-stage programming capabilities and precise torque control functions are realized. The torque sensor monitors the torque value in real time, and instantly adjusts the working status of the electric batch body through the intelligent industrial controller to ensure that each screw tightening meets the preset standards.

Benefits of technology

The parameter setting is achieved according to different application scenarios and tightening process requirements, ensuring the accuracy and reliability of each screw tightening, avoiding quality problems caused by insufficient torque or excessive force, thereby improving the consistency and reliability of assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of electric tools, in particular to a machine intelligent electric screwdriver which comprises a tool cable connector, an electric screwdriver body, a torque sensor, a telescopic elastic sleeve conversion connector, a mounting plate, a power line and an intelligent industrial controller. A tool cable connector is arranged at the top of the electric screwdriver body, a telescopic elastic sleeve conversion connector is further arranged on a main transmission shaft of the electric screwdriver body, and the electric screwdriver body is connected with the intelligent industrial controller through a power line. By integrating the torque sensor and the intelligent industrial controller, the multi-segment programming capability is achieved, parameter setting can be conducted according to different application scenes and tightening process requirements, the device is more suitable for various complex assembly tasks, in addition, the torque in the tightening process can be monitored in real time and accurately controlled, it is ensured that tightening of screws each time meets the preset standard, and the production efficiency is improved. And the quality problem caused by insufficient or excessive torque is avoided, so that the consistency and reliability of assembly are improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of electric tools, in particular to an intelligent electric screwdriver for machines. Background Art

[0002] An electric screwdriver, also known as an electric screwdriver or an intelligent electric screwdriver, is an electric tool designed for tightening or loosening screws. It is equipped with a mechanism to adjust and limit torque and is mainly used in assembly line operations. The electric screwdriver consists of three major parts: an electronic control system, a motor drive system, and a mechanical transmission system. Due to its high precision and fast working efficiency, it has become an indispensable tool in the modern assembly industry.

[0003] Early traditional electric screwdrivers mainly relied on simple mechanical structures and basic electronic control to achieve screw tightening operations. Such devices usually lack multi-segment programming capabilities and cannot be flexibly adjusted according to different tightening process requirements, which greatly limits their application in complex assembly tasks. In addition, since traditional electric screwdriver equipment cannot accurately control torque, when performing high-precision assembly tasks (such as electronic product assembly, automobile manufacturing and other fields), problems such as over-tightening or under-tightening of screws may occur, seriously affecting the quality and service life of the product.

[0004] In view of the above problems, it is urgent to develop an intelligent electric screwdriver for machine use, which can realize multi-segment programming capability and torque precise control function by integrating torque sensor and intelligent industrial controller. Summary of the invention

[0005] In order to overcome the shortcomings of existing electric screwdrivers, such as lack of multi-stage programming capability, inability to adapt to complex tightening process requirements and inability to accurately control torque, the present invention provides a machine-use intelligent electric screwdriver.

[0006] In order to solve the above problems, the present invention adopts the following technical scheme: an intelligent electric screwdriver for machine, comprising a tool cable connector, an electric screwdriver body, a torque sensor, a telescopic sleeve conversion connector, a mounting plate, a power line, an intelligent industrial controller and a fixing plate, the mounting plate being arranged on the rear side of the electric screwdriver body, the tool cable connector being arranged on the top of the electric screwdriver body, the telescopic sleeve conversion connector being arranged on the main drive shaft of the electric screwdriver body, the torque sensor being also arranged on the main drive shaft of the electric screwdriver body, the electric screwdriver body being connected to the intelligent industrial controller through the power line, and the fixing plates being arranged on both sides of the intelligent industrial controller.

[0007] In one of the embodiments, a protective sleeve is further included, and the outer sleeve of the power line is provided with the protective sleeve.

[0008] In one of the embodiments, a transparent protective cover is further included, and the transparent protective cover is snapped onto the surface of the intelligent industrial controller.

[0009] In one of the embodiments, it also includes a support frame, a heat sink, a filter plate and a fan. The support frame is fixedly connected to the mounting plate. The interior of the support frame is where the electric screwdriver body is located. A plurality of groups of heat sinks are evenly distributed inside the support frame. The filter plate is embedded on the rear side of the support frame, and the fans are symmetrically installed on the rear side of the support frame.

[0010] In one of the embodiments, it also includes a limit plate, bolts, threaded rods and a screw block. The limit plate serves as a supporting structure of the electric screwdriver body and is fixed to the required equipment by the bolts. A plurality of threaded rods are fixedly connected to the lower portion of the limit plate. A plurality of corresponding mounting holes are opened at the lower portion of the mounting plate. The screw block is threadedly arranged on the threaded rod.

[0011] In one of the embodiments, a rubber block is further included, and the rubber block is disposed on a side of the screwing block that contacts the mounting plate.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By integrating a torque sensor and an intelligent industrial controller, multi-segment programming capability is achieved, and parameter settings can be performed according to different application scenarios and tightening process requirements, making it more suitable for various complex assembly tasks. In addition, the torque during the tightening process can be monitored in real time and accurately controlled, ensuring that each screw tightening meets the preset standards, avoiding quality problems caused by insufficient or excessive torque, and thus improving the consistency and reliability of assembly.

[0013] 2. By adding components such as heat sinks, fans, and filter plates, the heat dissipation performance of the electric screwdriver body is effectively enhanced, so that the electric screwdriver body can be maintained in a suitable operating temperature range under long-term high-load operation, ensuring the stability and reliability of the equipment.

[0014] 3. Through the combination of limit plates, bolts, threaded rods and screw blocks, the main body of the electric screwdriver can be installed quickly and firmly, which is very suitable for application scenarios that require frequent replacement or adjustment of positions. At the same time, it simplifies the maintenance process, saves time and labor costs, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the electric screwdriver body, intelligent industrial controller, fixing plate and other components of the present invention.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of components such as a tool cable connector, a torque sensor, and a telescopic sleeve conversion connector of the present invention.

[0018] Figure 4It is a three-dimensional cross-sectional view of components such as a support frame, a heat sink and a filter plate of the present invention.

[0019] Figure 5 It is a three-dimensional cross-sectional view of the components such as the limit plate, bolts and threaded rods of the present invention.

[0020] In the accompanying drawings: 1- tool cable connector, 2- electric screwdriver body, 3- torque sensor, 4- telescopic sleeve conversion connector, 5- mounting plate, 6- power line, 7- intelligent industrial controller, 8- fixing plate, 9- protective cover, 10- transparent protective cover, 11- support frame, 12- heat sink, 13- filter plate, 14- fan, 15- limit plate, 16- bolt, 17- threaded rod, 18- screw block, 19- rubber block. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1-Figure 3, a smart electric screwdriver for a machine includes a tool cable connector 1, an electric screwdriver body 2, a torque sensor 3, a telescopic sleeve conversion connector 4, a mounting plate 5, a power line 6, an intelligent industrial controller 7, a fixing plate 8, a protective cover 9 and a transparent protective cover 10, wherein a mounting plate 5 is arranged on the rear side of the electric screwdriver body 2, and the arrangement of the mounting plate 5 facilitates the fixed installation of the electric screwdriver body 2, and a tool cable connector 1 is arranged on the top of the electric screwdriver body 2, and the tool cable connector 1 is designed as a 9-core cable interface with a high protection level and excellent wear resistance, and can adapt to various complex working environments, and a telescopic sleeve conversion connector 4 is arranged on the main transmission shaft of the electric screwdriver body 2, and a suitable screwdriver head can be replaced according to different application scenarios, so as to realize multi-purpose use of one machine, which is convenient and fast, and a torque sensor is also arranged on the main transmission shaft of the electric screwdriver body 2. Device 3, the torque sensor 3 is located above the telescopic elastic sleeve conversion joint 4, and can monitor the torque, pressure and other parameters in the tightening process in real time. The electric screwdriver body 2 is connected to the intelligent industrial controller 7 through the power line 6. The intelligent industrial controller 7 is used to display and control parameters such as torque and angle, and the power line 6 not only provides power support, but also serves as a data transmission line. Fixed plates 8 are provided on both sides of the intelligent industrial controller 7 to facilitate the installation of the intelligent industrial controller 7. A protective sleeve 9 is provided on the outside of the power line 6 to enhance the wear resistance and tensile resistance of the power line 6 and prevent damage to the power line 6 due to friction or accidental pulling in a complex working environment. A transparent protective cover 10 is snapped on the surface of the intelligent industrial controller 7 to protect the intelligent industrial controller 7 from dust, liquid splashing and other potential contaminants.

[0023] When using this device, first connect the power to the intelligent industrial controller 7, then insert the tool cable connector 1 through the power line 6 to connect the electric screwdriver body 2 to the intelligent industrial controller 7, then select the appropriate screw bit according to the screw specifications and install it on the electric screwdriver body 2 through the telescopic sleeve conversion connector 4, then turn on the power, enter the setting interface of the intelligent industrial controller 7, set the target torque, speed and number of turns as needed to meet different locking process requirements, after starting, the electric screwdriver body 2 starts to run according to the preset parameters, during this process, the torque sensor 3 will monitor the torque value or angle value and the applied force in real time, and send feedback signals to the intelligent industrial controller 7, and the intelligent industrial controller 7 will instantly adjust the working status of the electric screwdriver body 2 based on the feedback information to ensure that each screw is correctly tightened to the specified torque value, while preventing over-tightening or damage to the thread. This closed-loop control system ensures the accuracy and reliability of the tightening process.

[0024] Example 2: Based on Example 1, please refer to Figure 4, also includes a support frame 11, a heat sink 12, a filter plate 13 and a fan 14. The mounting plate 5 is fixedly connected to the support frame 11, and the interior of the support frame 11 is where the electric screwdriver body 2 is located. Four groups of heat sinks 12 are evenly distributed inside the support frame 11, and the four groups of heat sinks 12 respectively contact the front and back, left and right sides of the electric screwdriver body 2, so as to more effectively absorb and dissipate the heat generated by the electric screwdriver body 2. A filter plate 13 is embedded on the rear side of the support frame 11, and the filter plate 13 allows air circulation while preventing dust and other particles from entering the interior of the electric screwdriver. Fans 14 symmetrically distributed up and down are installed on the rear side of the support frame 11, and the fan 14 is designed to inhale cold air from the outside and exhaust hot air through the heat sink 12, forming an effective airflow channel, thereby improving the heat dissipation efficiency.

[0025] During the operation of the electric screwdriver body 2, since the heat sink 12 is directly attached to the electric screwdriver body 2, the heat can be quickly transferred from the electric screwdriver body 2 to the heat sink 12 and further dissipated to the outside. Then, the fan 14 starts to draw cold air from the outside through the heat sink 12, taking away the heat and dissipating it outside the equipment, which significantly improves the heat dissipation efficiency, helps to maintain the electric screwdriver body 2 within a suitable operating temperature range, and ensures the stability and reliability of the equipment.

[0026] See also Figure 5 , also includes a limit plate 15, a bolt 16, a threaded rod 17, a screw block 18 and a rubber block 19. The limit plate 15 serves as a supporting structure of the electric screwdriver body 2 and is fixed to the required equipment by the bolt 16. Two threaded rods 17 are fixedly connected to the lower part of the limit plate 15. Two corresponding mounting holes are opened at the lower part of the mounting plate 5. The threaded rod 17 is threadedly provided with a screw block 18. When the threaded rod 17 passes through the mounting hole, the mounting plate 5 is tightened by rotating the screw block 18, thereby locking the position of the electric screwdriver body 2. A rubber block 19 is provided on one side of the screw block 18 that contacts the mounting plate 5. The setting of the rubber block 19 not only increases the friction force, which helps to better fix the mounting plate 5, but also plays a buffering role to a certain extent, reducing the risk of loosening due to vibration or external force.

[0027] When the electric screwdriver body 2 needs to be installed, the limit plate 15 is fixed to the target equipment by bolts 16, providing a stable installation platform. Subsequently, the threaded rod 17 is passed through the mounting hole on the mounting plate 5 and fastened with the screw block 18 to achieve a firm installation of the electric screwdriver body 2. This combination is simple, effective, and easy to disassemble, and is very suitable for application scenarios that require frequent disassembly and assembly or high-precision positioning.

[0028] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A machine-use intelligent electric screwdriver, comprising a tool cable connector (1), an electric screwdriver body (2), a telescopic sleeve conversion connector (4) and a mounting plate (5), wherein the mounting plate (5) is arranged at the rear side of the electric screwdriver body (2), the tool cable connector (1) is arranged at the top of the electric screwdriver body (2), and the telescopic sleeve conversion connector (4) is arranged on the main transmission shaft of the electric screwdriver body (2), wherein: A torque sensor (3), a power line (6), an intelligent industrial controller (7) and a fixing plate (8); the torque sensor (3) is also arranged on the main transmission shaft of the electric screwdriver body (2); the electric screwdriver body (2) is connected to the intelligent industrial controller (7) via the power line (6); and the fixing plates (8) are arranged on both sides of the intelligent industrial controller (7).

2. The machine-use intelligent electric screwdriver as claimed in claim 1, characterized in that: It also includes a protective sleeve (9), and the protective sleeve (9) is sheathed on the outside of the power line (6).

3. The machine-use intelligent electric screwdriver as claimed in claim 2, characterized in that: It also includes a transparent protective cover (10), and the surface of the intelligent industrial controller (7) is snap-connected with the transparent protective cover (10).

4. The machine-use intelligent electric screwdriver as claimed in claim 3, characterized in that: It also includes a support frame (11), a heat sink (12), a filter plate (13) and a fan (14); the support frame (11) is fixedly connected to the mounting plate (5); the interior of the support frame (11) is where the electric screwdriver body (2) is located; a plurality of groups of the heat sinks (12) are evenly distributed inside the support frame (11); the filter plate (13) is embedded on the rear side of the support frame (11); and the fans (14) are symmetrically installed on the rear side of the support frame (11).

5. The machine-use intelligent electric screwdriver as claimed in claim 4, characterized in that: It also includes a limit plate (15), a bolt (16), a threaded rod (17) and a screw block (18). The limit plate (15) serves as a supporting structure of the electric screwdriver body (2) and is fixed to the required equipment by the bolt (16). A plurality of threaded rods (17) are fixedly connected to the lower part of the limit plate (15). A plurality of corresponding mounting holes are opened at the lower part of the mounting plate (5). The threaded rod (17) is threadedly provided with the screw block (18).

6. The machine-use intelligent electric screwdriver as claimed in claim 5, characterized in that: It also includes a rubber block (19), and the rubber block (19) is arranged on a side of the screwing block (18) that contacts the mounting plate (5).