Numerical control machine tool spindle state online monitoring system based on wireless sensor network

Abstract

The invention discloses a numerical control machine tool spindle state online monitoring system based on a wireless sensor network. The numerical control machine tool spindle state online monitoring system comprises a wireless sensor module, a wireless communication module, an information processing module and a computer terminal display module. The wireless sensor module is installed on the circumference of a numerical control machine tool spindle. The wireless sensor module, the wireless communication module and the information processing module are connected through a wireless network, and the information processing module is connected with the computer terminal display module. The method has the advantages that real-time online monitoring of the state of the spindle of the numerical control machine tool is achieved, and workers can conveniently find and solve the abnormal state of the spindle of the machine tool in time.

Description

Technical Field

[0001] The invention belongs to the technical field of monitoring, and in particular relates to the design of an online monitoring system for a spindle state of a numerically controlled machine tool based on a wireless sensor network. Background Art

[0002] Wireless sensor networks integrate sensor technology, embedded computing technology, modern network and wireless communication technology, distributed information processing technology and other technologies. Wireless sensor networks can be seen as consisting of three parts: data acquisition network, data distribution network and control management center. Its main components are nodes that integrate sensors, data processing units and communication modules. Each node forms a distributed network through a protocol, and then transmits the collected data to the information processing center through radio waves after optimization. Wireless sensor networks greatly reduce cable costs and wiring time. The sensor node end combines analog / digital signal conversion, digital signal processing and network communication functions. The node has a self-test function, and the system performance and reliability are significantly improved while the cost is significantly reduced.

[0003] At present, most CNC machine tool spindle monitoring technologies lack timeliness and cannot provide timely feedback on the status information of the machine tool spindle. When the machine tool spindle status is abnormal, the staff cannot discover and solve it in time, which will shorten the working life of the machine tool spindle and even damage the machine tool spindle in severe cases. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of lack of timeliness in the spindle monitoring technology of CNC machine tools in the prior art, and proposes an online monitoring system for the spindle status of CNC machine tools based on a wireless sensor network.

[0005] The technical solution of the present invention is: an online monitoring system for the spindle status of a CNC machine tool based on a wireless sensor network, comprising a wireless sensor module, a wireless communication module, an information processing module and a computer terminal display module; the wireless sensor module is installed on the circumference of the spindle of the CNC machine tool; the wireless sensor module, the wireless communication module and the information processing module are all connected through a wireless network, and the information processing module and the computer terminal display module are interconnected.

[0006] Preferably, the wireless sensor module includes a torque sensor, a temperature sensor, a rotation speed sensor and a vibration sensor.

[0007] Preferably, the computer terminal display module includes an SQL database and a web page display terminal.

[0008] The beneficial effects of the present invention are as follows: the present invention realizes real-time online monitoring of the state of the spindle of a numerically controlled machine tool, making it convenient for the staff to timely discover and solve the abnormal state of the spindle of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Schematic diagram of the CNC machine tool spindle with the wireless sensor module installed.

[0010] Figure 2 This is a working flow chart of the online monitoring system for the spindle status of a CNC machine tool based on a wireless sensor network provided by the present invention.

[0011] Figure 3 Schematic diagram of signal processing by the information processing module.

[0012] Figure 4 When the spindle status value exceeds the normal range, a schematic diagram is displayed on the computer terminal display module. DETAILED DESCRIPTION

[0013] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] The CNC machine tool spindle status online monitoring system based on wireless sensor network provided by the present invention comprises a wireless sensor module 1, a wireless communication module, an information processing module and a computer terminal display module.

[0015] The wireless sensor module 1 includes a torque sensor, a temperature sensor, a rotation speed sensor and a vibration sensor, which are installed on the circumference of the CNC machine tool spindle 2. Figure 1 As shown, it is required that the stability of the operation of the CNC machine tool spindle 2 should not be affected. The wireless sensor module 1, the wireless communication module and the information processing module are all connected through a wireless network, and the information processing module is connected to the computer terminal display module. The computer terminal display module includes an SQL database and a web page display terminal, and the SQL database is used to display the spindle status data transmitted by the information processing module on the web page display terminal.

[0016] The working process of the online monitoring system for spindle status of CNC machine tools based on wireless sensor network provided by the present invention is as follows: Figure 2 As shown, the following steps are included:

[0017] S1, the wireless sensor module 1 obtains the spindle status signal, such as the spindle temperature, vibration, speed and other data signals;

[0018] S2, the wireless communication module sends the spindle status signal to the information processing module;

[0019] S3, the information processing module processes the spindle status signal to convert it into data that can be recognized by humans. The signal processed by the information processing module is finally sent to the computer terminal display module. The schematic diagram of the information processing module processing signal is shown in Figure 3 As shown;

[0020] S4. The computer terminal display module displays the processing result in step S3.

[0021] The computer terminal display module receives the signal processed by the information processing module and uses the SQL database to display the spindle status data on the web display terminal, thereby realizing real-time online monitoring. If any value of the spindle temperature, speed, vibration, etc. exceeds the normal range, it will be displayed as abnormal operation on the web display terminal. Figure 4 As shown, the system will sound an alarm to attract the attention of the staff, who will then decide whether to stop the machine tool and check it based on the actual situation.

[0022] Those skilled in the art will appreciate that the embodiments described herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations that do not deviate from the essence of the present invention based on the technical revelations disclosed by the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. An online monitoring system for spindle status of CNC machine tools based on wireless sensor networks, characterized in that: The invention comprises a wireless sensor module (1), a wireless communication module, an information processing module and a computer terminal display module; the wireless sensor module (1) is installed on the circumference of a CNC machine tool spindle (2); the wireless sensor module (1), the wireless communication module and the information processing module are all connected via a wireless network, and the information processing module and the computer terminal display module are connected to each other.

2. The online monitoring system for spindle status of CNC machine tools based on wireless sensor network according to claim 1 is characterized in that: The wireless sensor module (1) comprises a torque sensor, a temperature sensor, a rotation speed sensor and a vibration sensor.

3. The online monitoring system for spindle status of CNC machine tools based on wireless sensor network according to claim 1 is characterized in that: The computer terminal display module includes an SQL database and a web page display terminal.

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