Intelligent electric screwdriver

Abstract

The utility model discloses an intelligent electric screwdriver which comprises a motor, an information collecting module, a control panel, a screwdriver head assembly and an electric screwdriver shell, the motor, the information collecting module and the control panel are all arranged in the electric screwdriver shell, and the screwdriver head assembly is arranged in the electric screwdriver shell in a sleeved mode and connected with the electric screwdriver shell. A start button connected with the control panel is arranged on the electric screwdriver shell; the electric screwdriver shell is further provided with a forward and reverse rotation switch connected with the control panel so as to control forward rotation and reverse rotation of a motor shaft of the motor. The control panel is provided with an output interface and can feed information of the information acquisition module back to the outside in real time so as to achieve the purposes of visually seeing tightening results and monitoring tightening data in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric screwdrivers, in particular to an intelligent electric screwdriver with real-time monitoring of torque angle. Background Art

[0002] The electric screwdriver is a commonly used tightening tool. As an important actuator of product assembly equipment, it is mainly used for high-precision tightening and free loosening of screws with a specific torque.

[0003] Most of the current electric screwdrivers are ordinary electric screwdrivers, which can only automatically suck screws and automatically tighten them. Their precision is very low and cannot meet the high-end market's demand for high-quality assembly and tightening. Electric screwdrivers directly affect the production capacity and yield of equipment. Ordinary electric screwdrivers cannot directly see the tightening results, nor can they monitor the tightening data in real time, so they cannot meet the high quality requirements of product assembly manufacturers. Utility Model Content

[0004] A brief overview of embodiments of the present invention is given below in order to provide a basic understanding of certain aspects of the present invention. It should be understood that the following overview is not an exhaustive overview of the present invention. It is not intended to identify key or important parts of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0005] The present application provides an intelligent electric screwdriver with real-time monitoring of torque angle and uploadable tightening results. It controls torque and speed through a motor and can be integrated into automatic screw machine equipment to achieve automatic assembly of factory product assembly lines, monitor the stability of the production process in real time, and ensure that the production rhythm and product assembly quality meet the expected requirements.

[0006] The technical solutions of the utility model are as follows:

[0007] An intelligent electric screwdriver, comprising:

[0008] Electric motors, which convert electrical energy into mechanical energy;

[0009] Information collection module, used to collect the working parameters of the electric batch;

[0010] A control board, the motor and the information acquisition module are electrically connected to the control board; the control board has an output interface;

[0011] A screwdriver bit assembly, the screwdriver bit assembly comprising an electric screwdriver output shaft and a screwdriver bit structure, one end of the electric screwdriver output shaft is connected to the motor, and the other end of the electric screwdriver output shaft is coaxially connected to the screwdriver bit structure; the motor starts to operate after receiving the current, and transmits the rotational force to the screwdriver bit structure through the electric screwdriver output shaft;

[0012] An electric screwdriver housing, the motor, information acquisition module and control board are all arranged inside the electric screwdriver housing, the screwdriver head assembly is sleeved in the electric screwdriver housing and connected to the electric screwdriver housing; the electric screwdriver housing is provided with a start button connected to the control board; the electric screwdriver housing is also provided with a forward and reverse switch connected to the control board to control the forward and reverse rotation of the motor shaft of the motor.

[0013] Among them, the output interface of the control board can be a wired interface or a wireless interface. The wired interface can be an RS232 serial port, an RS485 interface, a GPIO port, a USB interface, etc., and the wireless interface can be Bluetooth, WIFI, etc., which is used to feed back the information of the information acquisition module to the outside (such as a computer) in real time, so as to achieve the purpose of intuitively seeing the tightening results and real-time monitoring of the tightening data.

[0014] The information acquisition module is used to obtain parameters such as motion trajectory, coordinates, torque magnitude, and number of rotations of the electric screwdriver (one or more parameters can be selected), and may include a rotary encoder, a torque sensor, a pressure sensor, a position sensor, etc. As a preferred embodiment, the information acquisition module includes a rotary encoder and a torque sensor, and the rotary encoder is used to detect the angular displacement, angular velocity and other information of the output shaft of the electric screwdriver; the torque of the electric screwdriver is detected by the torque sensor, and the switching torque can be adjusted as needed to ensure safety during the work process; at the same time, through the pre-setting of the control panel, the motor is automatically controlled to stop rotating when the screw reaches the preset torque or depth to prevent over-tightening.

[0015] Furthermore, the bit structure includes a bit, a bit holder and a bit buckle, the bit holder is sleeved on the outside of the bit, one end of the bit is connected to the electric screwdriver output shaft through the bit buckle, and the other end of the bit extends out of the bit holder; the bit holder is connected to the electric screwdriver output shaft.

[0016] Furthermore, the screwdriver bit structure also includes a head fixing ring, and the head fixing ring is connected to the output shaft of the electric screwdriver.

[0017] Furthermore, a hook is provided at one end of the electric screwdriver shell away from the screwdriver head structure, and two hooks are extended downward from the hook. Two corresponding slots are provided on the electric screwdriver shell, and the hooks of the hook are engaged with the slots of the electric screwdriver shell.

[0018] Furthermore, a tail fixing ring is provided at one end of the electric screwdriver housing away from the screwdriver head structure, and the tail fixing ring is fixed to the electric screwdriver housing by fitting with locking screws.

[0019] Furthermore, a torque arm mounting hole is provided at one end of the electric screwdriver housing away from the screwdriver head structure for mounting a torque arm.

[0020] Compared with the prior art, the utility model has the following advantages through the above scheme:

[0021] 1. Through the setting of the output interface of the control module, the information of the information acquisition module can be fed back to the outside in real time, so as to achieve the purpose of intuitively seeing the tightening results and real-time monitoring of the tightening data;

[0022] 2. Through the setting of the forward and reverse switch, it can rotate counterclockwise or clockwise, allowing the user to switch the forward and reverse rotation of the bit structure as needed. Forward rotation can be used for tightening, and reverse rotation can be used for loosening;

[0023] 3. It can be installed on the tensioner through a hook. After tightening the screws, you can directly release them, making it convenient and labor-saving to take the electric screwdriver;

[0024] 4. By installing the housing of the electric screwdriver onto the torque arm, you can directly release the screws after tightening them, making it convenient and labor-saving to take the electric screwdriver;

[0025] 5. The intelligent electric screwdriver can be installed on the automatic screw driving equipment, and can be quickly connected to the robot and motion platform through RS485, RS232 or IO interfaces;

[0026] Through the above scheme, the intelligent electric screwdriver of the utility model has high precision, high reliability, high durability, high cost performance, excellent servo control, real-time process management, status display data storage and quality traceability functions, and can provide special structures or customized services according to customer needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention can be better understood by referring to the following description in conjunction with the accompanying drawings, wherein the same or similar reference numerals are used in all drawings to represent the same or similar components. The accompanying drawings together with the following detailed description are included in and form a part of this specification, and are used to further illustrate the preferred embodiments of the present invention and explain the principles and advantages of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the intelligent electric screwdriver according to an embodiment of the utility model;

[0029] Figure 2 The schematic diagram of the decomposition of the intelligent electric screwdriver of the utility model embodiment is as follows: Figure 1 ;

[0030] Figure 3 The schematic diagram of the decomposition of the intelligent electric screwdriver of the utility model embodiment is as follows: Figure 2 ;

[0031] The names of the components corresponding to the numbers in the figure are as follows: 1. Bit, 2. Bit holder, 3. Bit buckle, 4. Electric screwdriver output shaft 4, 5. Head fixing ring, 6. Electric screwdriver housing, 7. Forward and reverse switch, 8. Torque arm mounting hole, 9. Tail fixing ring, 10. Hook, 11. Motor, 12. LOGO, 13. Start button, 14. Control board. DETAILED DESCRIPTION

[0032] Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the purpose of clarity, the representation and description of components and processes that are not related to the present invention and are known to those of ordinary skill in the art are omitted in the drawings and descriptions.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "install", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the insides of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] See also Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model provides an intelligent electric screwdriver, which includes a screwdriver bit 1, a screwdriver bit holder 2, a screwdriver bit buckle 3, an electric screwdriver output shaft 4, a head fixing ring 5, an electric screwdriver housing 6, a forward and reverse switch 7, a torque arm mounting hole 8, a tail fixing ring 9, a hook 10, a motor 11, a LOGO 12, a start button 13 and a control board 14.

[0035] Among them, the screwdriver bit 1 is installed in the screwdriver bit buckle 3, the screwdriver bit holder 2 is threadedly locked with the electric screwdriver output shaft 4, the screwdriver bit buckle 3 is flexibly connected with the electric screwdriver output shaft 4, the electric screwdriver output shaft 4 is fixed with the electric screwdriver housing 6, the head fixing ring 5 is threadedly locked with the electric screwdriver output shaft 4, the electric screwdriver housing 6 is buckled with the electric screwdriver output shaft 4 and fixed by the head fixing ring 5 and the tail fixing ring 9 respectively, the forward and reverse switch 7 and the electric screwdriver housing 6 are installed in a track manner, the torque arm mounting hole 8 is in a threaded form, the tail fixing ring 9 is fitted with the electric screwdriver housing 6 and fixed by screws, the hook 10 is opened and inserted into the housing for fixing, the motor 11 is fixed with screws to the electric screwdriver output shaft 4, the LOGO 12 is fitted with the electric screwdriver housing 6, and the start button 13 is connected to the electric screwdriver housing 6 by a pin.

[0036] An information acquisition module for collecting working parameters of the electric screwdriver and a control board 14 as a control unit are arranged in the electric screwdriver housing 6. The information acquisition module is electrically connected to the motor 11 and the control board.

[0037] Electric motors are used to convert electrical energy into mechanical energy.

[0038] The control panel is provided with an output interface, which can be a wired interface or a wireless interface. The wired interface can be an RS232 serial port, an RS485 interface, a GPIO port, a USB interface, etc., and the wireless interface can be Bluetooth, WIFI, etc., which is used to feed back the information of the information acquisition module to the outside (such as a computer) in real time, so as to achieve the purpose of intuitively seeing the tightening results and real-time monitoring of the tightening data.

[0039] The information acquisition module is used to obtain parameters such as motion trajectory, coordinates, torque magnitude, and number of rotations of the electric screwdriver (one or more parameters can be selected), and may include a rotary encoder, a torque sensor, a pressure sensor, a position sensor, etc. In this embodiment, the information acquisition module includes a rotary encoder and a torque sensor, and the rotary encoder is used to detect the angular displacement, angular velocity and other information of the output shaft of the electric screwdriver; the torque of the electric screwdriver is detected by the torque sensor, and the switching torque can be adjusted as needed to ensure safety during the work process; at the same time, through the pre-setting of the control panel, the motor 11 is automatically controlled to stop rotating when the screw reaches the preset torque or depth to prevent over-tightening.

[0040] The bit 1, the bit holder 2, the bit buckle 3 and the head fixing ring 5 constitute a bit structure. The bit holder 2 is sleeved on the outside of the bit 1. One end of the bit 1 is connected to the electric screwdriver output shaft through the bit buckle 3, and the other end of the bit 1 extends out of the bit holder 2; the bit holder 2 is connected to the electric screwdriver output shaft, and the head fixing ring 5 is connected to the electric screwdriver output shaft. The bit structure and the electric screwdriver output shaft 4 constitute a bit assembly. One end of the electric screwdriver output shaft is connected to the motor 11, and the other end of the electric screwdriver output shaft is coaxially connected to the bit structure; the motor 11 starts to operate after receiving the current, and transmits the rotational force to the bit structure through the electric screwdriver output shaft.

[0041] The hook 10, the tail fixing ring 9, and the torque arm mounting hole 8 are arranged at one end of the electric screwdriver housing 6 away from the screwdriver head structure. Among them, the hook 10 extends two hooks downward, and the electric screwdriver housing 6 is provided with two corresponding slots, and the hooks of the hook 10 and the slots of the electric screwdriver housing 6 are mutually engaged. The tail fixing ring 9 is fixed to the electric screwdriver housing 6 by locking screws. The torque arm mounting hole 8 is used to install the torque arm.

[0042] The output shaft of the electric screwdriver is the part of the electric screwdriver used to convert the rotational force output by the motor 11 into the form required by the electric screwdriver, and is used to cooperate with different accessory components to adapt to different work requirements. When in use, the control board performs corresponding drive control on the motor 11 through the information collected by the information collection module, thereby realizing the control of the output shaft of the electric screwdriver, and the output shaft is driven by the motor 11 to convert the rotational force into the working force of different accessory components, thereby realizing the operation of various tasks.

[0043] Through the above solution, the speed and torque of the intelligent batch locking process of the intelligent electric screwdriver can be controlled in sections through the control panel, and different speeds and torques are used in different locking stages to achieve better locking effects; the locking results of each screw are recorded so that the working status of each screw can be traced. The torque value of the screw locking can be tracked in real time; it can also be uploaded to an external mis system to complete remote data reading, analysis and use.

[0044] The control method of the intelligent electric batch is as follows:

[0045] (1) During manual operation, press the start switch and the smart electric screwdriver stops when it reaches the set parameters;

[0046] (2) The tightening direction is controlled by the forward and reverse switch 7, which can rotate counterclockwise or clockwise, allowing the user to switch the forward and reverse rotation of the screwdriver bit structure as needed;

[0047] (3) Install it to the tensioner through the hook 10, and you can directly loosen your hands after tightening the screws, making it convenient and labor-saving to take the electric screwdriver;

[0048] (4) Install the torque arm through the torque arm mounting hole 8 of the electric screwdriver housing. After tightening the screws, you can directly release your hand, which makes it convenient and labor-saving to take the electric screwdriver;

[0049] (5) Installed on automatic screw driving equipment, it can be quickly connected to robots and motion platforms via RS485, RS232 and IO.

[0050] Through the above scheme, the intelligent electric screwdriver of the utility model has high precision, high reliability, high durability, high cost performance, excellent servo control, good operation interface, real-time process management, status display data storage and quality traceability functions, and can provide special structures or customized services according to customer needs.

[0051] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0052] Although the utility model has been disclosed above through the description of the specific embodiments of the utility model, it should be understood that all the above embodiments and examples are exemplary rather than restrictive. Those skilled in the art can design various modifications, improvements or equivalents of the utility model within the spirit and scope of the attached claims. These modifications, improvements or equivalents should also be considered to be included in the protection scope of the utility model.

Claims

1. An intelligent electric screwdriver, characterized by: include: Electric motors, which convert electrical energy into mechanical energy; Information collection module, used to collect the working parameters of the electric batch; A control board, the motor and the information acquisition module are electrically connected to the control board; the control board has an output interface; A screwdriver bit assembly, the screwdriver bit assembly comprising an electric screwdriver output shaft and a screwdriver bit structure, one end of the electric screwdriver output shaft is connected to the motor, and the other end of the electric screwdriver output shaft is coaxially connected to the screwdriver bit structure; the motor starts to operate after receiving the current, and transmits the rotational force to the screwdriver bit structure through the electric screwdriver output shaft; An electric screwdriver housing, the motor, information acquisition module and control board are all arranged inside the electric screwdriver housing, the screwdriver head assembly is sleeved in the electric screwdriver housing and connected to the electric screwdriver housing; the electric screwdriver housing is provided with a start button connected to the control board; the electric screwdriver housing is also provided with a forward and reverse switch connected to the control board to control the forward and reverse rotation of the motor shaft of the motor.

2. The intelligent electric screwdriver according to claim 1, characterized in that: The information acquisition module includes a rotary encoder and / or a torque sensor and / or a pressure sensor and / or a position sensor.

3. The intelligent electric screwdriver according to claim 1, characterized in that: The bit structure comprises a bit, a bit holder and a bit buckle, wherein the bit holder is sleeved outside the bit, one end of the bit is connected to the output shaft of the electric screwdriver through the bit buckle, and the other end of the bit extends out of the bit holder; The bit holder is connected to the electric screwdriver output shaft.

4. The intelligent electric screwdriver according to claim 3, characterized in that: The screwdriver bit structure also includes a head fixing ring, and the head fixing ring is connected to the output shaft of the electric screwdriver.

5. The intelligent electric screwdriver according to claim 1, characterized in that: A hook is provided at one end of the electric screwdriver shell away from the screwdriver head structure, and two hooks are extended downward from the hook. Two slots are correspondingly provided on the electric screwdriver shell, and the hooks of the hook are engaged with the slots of the electric screwdriver shell.

6. The intelligent electric screwdriver according to claim 1, characterized in that: A tail fixing ring is provided at one end of the electric screwdriver housing away from the screwdriver head structure, and the tail fixing ring is sleeved with the electric screwdriver housing and fixed by locking screws.

7. The intelligent electric screwdriver according to claim 1, characterized in that: A torque arm mounting hole is provided at one end of the electric screwdriver housing away from the screwdriver head structure.

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