Numerical control electric screwdriver

Abstract

The utility model belongs to the technical field of electric screwdrivers, and particularly relates to a numerical control electric screwdriver which comprises a servo electric screwdriver and a touch screen which are simultaneously connected with a power supply, the servo electric screwdriver comprises a multi-layer circuit board, a sensor module and a servo motor, and the touch screen comprises a touch display screen, a microcomputer and an I / O port. The microcomputer is used for receiving digital signals sent by the sensor module, the multi-layer circuit board, the touch display screen and the I / O port, processing the digital signals and sending the digital signals to the touch display screen and the multi-layer circuit board; the multilayer circuit board is used for converting an electric signal sent by the servo motor into a digital signal and then sending the digital signal to the microcomputer, and converting the digital signal sent by the microcomputer into an electric signal and then sending the electric signal to the servo motor. According to the numerical control electric screwdriver, the multiple layers of circuit boards and the microcomputer are adopted, noise interference caused by multiple Pins is reduced, the size and the weight are greatly reduced, high expandability and data processing capacity are achieved, and more other peripheral devices can be integrated.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric screwdrivers, and in particular relates to a digitally controlled electric screwdriver. Background Art

[0002] CNC electric screwdriver is a kind of efficient and precise electric tool, which is widely used in machinery manufacturing, electronics manufacturing, automobile manufacturing and other industries to automatically tighten screws and improve production efficiency and product quality.

[0003] In the prior art, the controller design of a CNC screwdriver usually tightly integrates numerous control components into multiple areas of the same circuit board. This design causes the circuit board to carry a complex circuit network, which in turn leads to a large size of the controller of the CNC screwdriver. In order to meet operational requirements, these large controllers must also be integrated into the electric control box together with the power supply, which undoubtedly increases the size of the electric control box, making the entire system bulky and unportable.

[0004] For example, patent CN209831485U discloses a servo locking device, including: a housing, a screwdriver bit, a reduction box and a motor axially connected in sequence in the housing, an encoder located in the housing and installed at the end of the motor, a screwdriver nozzle installed on the screwdriver bit, and a control module; the control module is located outside the housing, and includes a touch screen module and a servo driver connected to the touch screen module signal, the touch screen module is used to set the working parameters of the servo locking device and display the locking data; the servo driver is connected to the motor and the encoder respectively through control cables, and is used to monitor and control the running state of the motor according to the information fed back by the touch screen module and the encoder. In this patent, the design of the servo electric screwdriver separates the servo drive module and the touch screen module, and connects them through control lines; however, this design has the following problems:

[0005] (1) The motor controller components are integrated in different areas of a circuit board. Together with the touch screen module and the external metal housing, the motor controller as a whole is large and bulky, which brings a lot of inconvenience to on-site installation and operation.

[0006] (2) More than 8 control lines with a length of 3 to 5 meters are required internally. The more control lines there are, the more pins there are. Due to the large number of pins and the small spacing between them, the risk of noise interference is increased. At the same time, since the electric screwdriver requires a large current when working, these longer control lines are prone to generate significant heat and cause voltage loss. In order to maintain the normal operation of the motor, the voltage loaded on the motor needs to be increased, which aggravates the heating phenomenon of the motor during operation, which has a serious impact on the life of the motor.

[0007] Therefore, it is of great significance to develop a small CNC electric screwdriver and overcome the above difficulties. Utility Model Content

[0008] In order to solve the problems existing in the prior art, the utility model provides a numerical control electric screwdriver.

[0009] In order to achieve the above purpose, the scheme adopted by the utility model is as follows:

[0010] A CNC electric screwdriver comprises a power supply, a servo electric screwdriver and a touch screen connected to the power supply, the servo electric screwdriver comprises a sensor module and a servo motor, the touch screen comprises a touch display screen and an I / O port, the servo electric screwdriver also comprises a multi-layer circuit board; the touch screen also comprises a microcomputer;

[0011] The microcomputer is electrically connected to the sensor module, the multi-layer circuit board, the touch display screen and the I / O port at the same time; the multi-layer circuit board is also electrically connected to the servo motor;

[0012] The microcomputer is used to receive the digital signals sent by the sensor module, the multi-layer circuit board, the touch display screen and the I / O port, and after processing the digital signals, send them to the touch display screen and the multi-layer circuit board;

[0013] The mainstream of existing technology still uses single chip or PLC for data processing. The application of microcomputer is an innovative measure. The CNC electric screwdriver proposed by the utility model adopts a more powerful microcomputer, which can not only handle the tasks that the original single chip and PLC can handle, but also further expand its capabilities. It can realize the efficient storage and processing of the Internet of Things communication data link, and even deeply integrate with AI applications, showing excellent scalability and flexibility;

[0014] At the same time, due to the use of microcomputers, the touch screen of the CNC electric screwdriver has been significantly reduced in size and weight, making on-site operation more convenient and efficient; this innovative design not only improves the overall performance of the product, but also brings a more convenient user experience to users;

[0015] The multilayer circuit board is used to convert the electrical signal sent by the servo motor into a digital signal and then send it to the microcomputer, and convert the digital signal sent by the microcomputer into an electrical signal and then send it to the servo motor;

[0016] Multi-layer circuit boards can significantly reduce the use of connecting wires, thereby reducing the corresponding number of pins and reducing the noise interference caused by multiple pins; at the same time, using multi-layer circuit boards instead of traditional single-piece circuit boards can greatly reduce the size and weight of CNC electric batch equipment.

[0017] As the preferred technical solution:

[0018] In a CNC electric screwdriver as described above, the multi-layer circuit board is located inside the servo electric screwdriver.

[0019] In a CNC electric screwdriver as described above, the microcomputer includes a controller, a signal processing module, an acquisition main control module and a display input module which are electrically connected in sequence; the signal processing module is electrically connected to the sensor module and the multi-layer circuit board at the same time, the display input module is electrically connected to the touch display screen, and the acquisition main control module is electrically connected to the I / O port.

[0020] The controller is the core of the whole system, which is mainly responsible for functions such as calculation, control and temporary storage. The controller and the signal processing module are electrically connected for data transmission and interaction. The main function of the signal processing module is to process the signals from the sensor module inside the electric batch. These signals are transmitted from the sensor module to the signal processing module through the data line, and then further processed. In addition, the acquisition main control module plays an important role in the system. It is connected to the signal processing module and the display input module respectively. On the one hand, the acquisition main control module receives the signal from the signal processing module and outputs and displays it through the display input module. On the other hand, it also processes the signals from the external device connected to the I / O port to ensure that the system can interact with the external environment. At the same time, the user can perform input operations through the touch display screen. These input signals are received by the display input module, and after being processed by the acquisition main control module, they are transmitted to the signal processing module for further processing.

[0021] As described above, the touch display screen of a CNC electric screwdriver is a capacitive screen. Due to the addition of an outer layer of protective glass, it has good scratch resistance, sensitive response and clear colors.

[0022] In a CNC electric screwdriver as described above, the number of layers of the multi-layer circuit board is more than 6.

[0023] The CNC electric screwdriver as described above, the servo electric screwdriver also includes a storage module;

[0024] The storage module is integrated on the sixth layer circuit board of the multi-layer circuit board;

[0025] The storage module is used to store the calibration parameters and product ID of the servo motor.

[0026] As described above, the touch screen of a CNC electric screwdriver also includes two Ethernet interfaces, a WIFI interface and an RS232 or RS485 interface.

[0027] Beneficial effects:

[0028] The utility model provides a CNC electric screwdriver, whose internal design ingeniously adopts a multi-layer circuit board structure. This design significantly reduces the number of connecting wires, thereby reducing the number of required pins, effectively reducing the noise interference problem that may be caused by multiple pins, and at the same time, the multi-layer circuit board replaces the traditional whole circuit board, greatly reducing the volume and weight of the CNC electric screwdriver equipment, which is not only easy to operate, but also reduces the heating phenomenon of the motor during operation, thereby significantly extending the service life of the CNC electric screwdriver;

[0029] The utility model discloses a CNC electric screwdriver, which adopts a capacitive touch display screen. Due to the addition of an outer protective glass, the touch display screen has good scratch resistance, sensitive response and clear colors.

[0030] The touch screen used in a CNC electric screwdriver of the utility model includes a microcomputer, which not only greatly reduces the overall size and weight of the CNC electric screwdriver but also has very strong expandability and data processing capabilities, which is conducive to the integration of more other peripheral devices in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall device of a CNC electric screwdriver of the utility model;

[0032] Figure 2 It is a schematic diagram of the internal structure of a servo electric screwdriver of a CNC electric screwdriver of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure of a multi-layer circuit board of a CNC electric screwdriver of the utility model;

[0034] Figure 4 This is a schematic diagram of the connection between a touch screen, a multi-layer circuit board and a servo motor of a CNC electric screwdriver of the utility model;

[0035] Among them, 1-servo screwdriver, 2-power supply, 3-touch screen, 4-multi-layer circuit board, 5-servo motor. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0037] A CNC electric screwdriver, such as Figures 1 to 4 As shown, it includes a servo electric screwdriver 1, a power supply 2, and a touch screen 3, and the power supply 2 is electrically connected to the servo electric screwdriver 1 and the touch screen 3 at the same time;

[0038] The servo motor 1 includes a sensor module, a storage module, a multi-layer circuit board 4 and a servo motor 5;

[0039] like Figures 2 to 4 As shown, the multi-layer circuit board 4 has more than 6 layers and is located inside the servo electric screwdriver 1; the storage module is integrated on the sixth layer of the multi-layer circuit board 4, and is used to store the calibration parameters and product ID of the servo electric screwdriver 1;

[0040] The touch screen 3 includes a touch display screen, a microcomputer, an I / O port, two Ethernet interfaces, a WIFI interface, and an RS232 or RS485 interface;

[0041] The microcomputer includes a controller, a signal processing module, a collection main control module and a display input module which are electrically connected in sequence;

[0042] The signal processing module is electrically connected to the sensor module and the multilayer circuit board 4, the display input module is electrically connected to the touch display screen, and the acquisition main control module is electrically connected to the I / O port;

[0043] The microcomputer is used to receive the digital signals sent by the sensor module, the multi-layer circuit board 4, the touch display screen and the I / O port, and after processing them, send them to the touch display screen and the multi-layer circuit board 4;

[0044] The multilayer circuit board 4 is used to convert the electrical signal sent by the servo motor 5 into a digital signal and then send it to the microcomputer, and convert the digital signal sent by the microcomputer into an electrical signal and then send it to the servo motor 5.

Claims

1. A CNC electric screwdriver, comprising a power supply (2) and a servo electric screwdriver (1) and a touch screen (3) connected to the power supply (2), wherein the servo electric screwdriver (1) comprises a sensor module and a servo motor (5), and the touch screen (3) comprises a touch display screen and an I / O port, characterized in that: The servo electric screwdriver (1) also includes a multilayer circuit board (4); the touch screen (3) also includes a microcomputer; The microcomputer is electrically connected to the sensor module, the multilayer circuit board (4), the touch display screen and the I / O port at the same time; the multilayer circuit board (4) is also electrically connected to the servo motor (5); The microcomputer is used to receive digital signals sent by the sensor module, the multi-layer circuit board (4), the touch display screen and the I / O port, and after processing the digital signals, send them to the touch display screen and the multi-layer circuit board (4); The multilayer circuit board (4) is used to convert the electric signal sent by the servo motor (5) into a digital signal and then send it to the microcomputer, and to convert the digital signal sent by the microcomputer into an electric signal and then send it to the servo motor (5).

2. A CNC electric screwdriver according to claim 1, characterized in that: The multilayer circuit board (4) is located inside the servo motor (1).

3. A CNC electric screwdriver according to claim 1, characterized in that: The microcomputer includes a controller, a signal processing module, a collection main control module and a display input module which are electrically connected in sequence; The signal processing module is electrically connected to the sensor module and the multilayer circuit board (4) at the same time; the display input module is electrically connected to the touch display screen; and the acquisition main control module is electrically connected to the I / O port.

4. A CNC electric screwdriver according to claim 1, characterized in that: The touch screen is a capacitive screen.

5. A CNC electric screwdriver according to claim 1, characterized in that: The number of layers of the multilayer circuit board (4) is more than 6.

6. A CNC electric screwdriver according to claim 5, characterized in that: The servo motor (1) further comprises a storage module; the storage module is integrated on the sixth layer of the multi-layer circuit board (4); The storage module is used to store the calibration parameters and product ID of the servo motor (1).

7. A CNC electric screwdriver according to claim 1, characterized in that: The touch screen (3) also includes two Ethernet interfaces, a WIFI interface and an RS232 or RS485 interface.

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