Monitoring and protecting device for needle cylinder slot milling machine

Abstract

The utility model discloses a monitoring and protecting device for a needle cylinder slot milling machine, which relates to the field of needle cylinder slot milling machines and comprises an electric control system, a servo motor and a working turntable, both the servo motor and the working turntable are connected with the electric control system, the servo motor is used for driving a milling cutter to rotate, and the working turntable is used for mounting a workpiece; the monitoring protection device further comprises a servo driver which is used for controlling the servo motor and monitoring the torsion of the servo motor. The vibration sensor is mounted on the workpiece to monitor the vibration quantity in real time; the servo driver and the vibration sensor are connected with the single chip microcomputer; a display device; the electric control system, the display device and the single chip microcomputer are all connected with the upper computer; the servo driver monitors the real-time torque value of the servo motor, the vibration sensor monitors the real-time vibration value of the workpiece, when the real-time torque value and the real-time vibration value are abnormal, the servo motor and the working rotary table can be stopped in time, the workpiece is prevented from being damaged, and the workpiece is protected in time.

Description

Technical Field

[0001] This utility model relates to the field of needle milling machine technology, and more specifically to a monitoring and protection device for a needle milling machine. Background Technology

[0002] Traditional needle cylinder milling machines consist of an electrical control system, milling cutters, a worktable, and a milling cutter motor. The electrical control system controls the worktable and the milling cutter motor, which drives the milling cutter to rotate. The worktable is used to mount the workpiece and is responsible for driving the workpiece to rotate. The milling cutter motor is a common asynchronous motor, and there is no monitoring of the milling cutter. This often results in dull cutters, broken belts, and broken milling cutters, causing damage to the workpiece and rendering it unusable.

[0003] Current commonly used technologies have several shortcomings that need optimization: a lack of real-time monitoring of milling cutter torque and workpiece vibration. It is necessary to improve the structure to ensure protection in case of any abnormalities, thus preventing workpiece damage. Utility Model Content

[0004] The purpose of this utility model is to provide a monitoring and protection device for a needle cylinder milling machine in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A monitoring and protection device for a syringe milling machine includes an electrical control system, a servo motor, and a rotary table. Both the servo motor and the rotary table are connected to the electrical control system. The servo motor drives the milling cutter to rotate, and the rotary table is used to mount the workpiece. The monitoring and protection device also includes:

[0007] Servo driver, which is used to control servo motors and monitor the torque of servo motors;

[0008] Vibration sensors are installed on workpieces to monitor vibration levels in real time.

[0009] The microcontroller, servo driver, and vibration sensor are all connected to the microcontroller.

[0010] Display device;

[0011] The host computer, electrical control system, display device and microcontroller are all connected to the host computer.

[0012] The display parameters of the display device include the real-time torque value of the servo motor, the reference torque value of the servo motor, the real-time vibration value of the workpiece, the reference vibration value of the workpiece, and alarm information.

[0013] The monitoring and protection device also includes a data server, and the host computer is connected to the data server. The data server is mainly responsible for storing historical data for easy retrieval later.

[0014] A conductive slip ring is installed at the center of the top of the workpiece. One end of the conductive slip ring's wire is connected to a vibration sensor, and the other end is connected to a microcontroller. During machining on the turntable, the workpiece rotates, which in turn causes the wire on the vibration sensor to rotate. The conductive slip ring prevents the wire from tangling.

[0015] Working Principle: In existing technology, asynchronous motors drive milling cutters to rotate via belts. When the cutter becomes dull, the belt breaks, or the milling cutter breaks, the torque of the servo motor will fluctuate abnormally, and the vibration value of the workpiece will also fluctuate abnormally. Therefore, abnormal fluctuations can be used to determine if a fault has occurred. In this invention, the asynchronous motor is replaced with a servo motor. The servo driver monitors the real-time torque value of the servo motor, and the vibration sensor monitors the real-time vibration value of the workpiece. The microcontroller is responsible for collecting the real-time torque and vibration values ​​and transmitting them to the host computer. The host computer analyzes the real-time torque and vibration values ​​and displays them on a display device for easy viewing by staff. The data server is mainly responsible for storing historical data.

[0016] The reference torque value of the servo motor refers to the torque value of the servo motor under normal working conditions of the milling cutter. When the real-time torque value exceeds the reference torque value, the host computer sends a stop command to the microcontroller. Upon receiving the command, the microcontroller sends a signal to the electrical control system. The electrical control system controls the servo motor and the turntable to stop working to avoid damage to the workpiece. At the same time, the host computer sends an alarm command to the display device, which displays alarm information to remind the operator of the malfunction and to replace the milling cutter in time.

[0017] The reference vibration value of the workpiece refers to the vibration value generated on the surface of the workpiece under normal working conditions of the milling cutter. When the real-time vibration value exceeds the reference electric value, the host computer sends a stop command to the microcontroller. Upon receiving the command, the microcontroller sends a signal to the electrical control system. The electrical control system controls the servo motor and the turntable to stop working to avoid damage to the workpiece. At the same time, the host computer sends an alarm command to the display device, which displays the alarm information to remind the operator of the malfunction and to replace the milling cutter in time.

[0018] The beneficial effects of this utility model are as follows:

[0019] In this invention, the servo driver monitors the real-time torque value of the servo motor, and the vibration sensor monitors the real-time vibration value of the workpiece. When the real-time torque value and the real-time vibration value are abnormal, the servo motor and the turntable can be stopped in time to avoid damage to the workpiece, protect the workpiece in time, and reduce losses. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2This is a structural view of a needle cylinder milling machine in the prior art;

[0022] Figure 3 This is a schematic diagram of a workpiece with a conductive slip ring.

[0023] Reference numerals in the attached diagram: 1. Electrical control system; 2. Servo motor; 3. Turntable; 4. Vibration sensor; 5. Workpiece; 6. Conductive slip ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figures 1 to 3 As shown, this embodiment provides a monitoring and protection device for a needle cylinder milling machine, including an electrical control system 1, a servo motor 2, and a worktable 3. Both the servo motor 2 and the worktable 3 are connected to the electrical control system 1. The servo motor 2 drives the milling cutter to rotate, and the worktable 3 is used to mount the workpiece 5. The monitoring and protection device also includes:

[0028] A servo driver, which is used to control servo motor 2 and monitor the torque of servo motor 2;

[0029] Vibration sensor 4 is installed on workpiece 5 to monitor the vibration in real time;

[0030] The microcontroller, servo driver, and vibration sensor 4 are all connected to the microcontroller.

[0031] Display device;

[0032] The host computer, electrical control system 1, display device and microcontroller are all connected to the host computer.

[0033] The display parameters of the display device include the real-time torque value of the servo motor 2, the reference torque value of the servo motor 2, the real-time vibration value of the workpiece 5, the reference vibration value of the workpiece 5, and alarm information.

[0034] The monitoring and protection device also includes a data server, and the host computer is connected to the data server. The data server is mainly responsible for storing historical data for easy retrieval later.

[0035] A conductive slip ring 6 is installed at the center of the top of the workpiece 5. One end of the conductor of the conductive slip ring 6 is connected to the vibration sensor 4, and the other end of the conductor is connected to the microcontroller. When the turntable 3 is processing, it will drive the workpiece 5 to rotate, which in turn will drive the conductor on the vibration sensor 4 to rotate. The conductive slip ring 6 is used to prevent the conductor from getting tangled.

[0036] Working Principle: In existing technology, an asynchronous motor drives the milling cutter to rotate via a belt. When the cutter becomes dull, the belt breaks, or the milling cutter breaks, the torque of the servo motor 2 will fluctuate abnormally, and the vibration value of the workpiece 5 will also fluctuate abnormally. Therefore, abnormal fluctuations can be used to determine if a fault has occurred. In this utility model, the asynchronous motor is replaced by the servo motor 2. In this utility model, the servo motor 2 drives the milling cutter to rotate via a belt, which is existing technology and will not be specifically described in this application. The servo driver monitors the real-time torque value of the servo motor 2, and the vibration sensor 4 monitors the real-time vibration value of the workpiece 5. The microcontroller is responsible for collecting the real-time torque value and the real-time vibration value and transmitting them to the host computer. The host computer analyzes the real-time torque value and the real-time vibration value and displays them on the display device for easy viewing by the staff. The data server is mainly responsible for storing historical data.

[0037] The reference torque value of servo motor 2 refers to the torque value corresponding to servo motor 2 under normal working conditions of the milling cutter. When the real-time torque value exceeds the reference torque value, the host computer sends a stop command to the microcontroller. The microcontroller receives the command and sends a signal to the electrical control system 1. The electrical control system 1 controls servo motor 2 and the worktable 3 to stop working to avoid damage to the workpiece 5. At the same time, the host computer sends an alarm command to the display device, which displays alarm information to remind the operator of the malfunction and to replace the milling cutter in time.

[0038] The reference vibration value of workpiece 5 refers to the vibration value generated on the surface of workpiece 5 under normal working conditions of the milling cutter. When the real-time vibration value exceeds the reference electric value, the host computer sends a stop command to the microcontroller. Upon receiving the command, the microcontroller sends a signal to the electrical control system 1. The electrical control system 1 controls the servo motor 2 and the worktable 3 to stop working to prevent damage to workpiece 5. At the same time, the host computer sends an alarm command to the display device, which displays alarm information to remind the operator of the malfunction and to replace the milling cutter in time.

Claims

1. A monitoring and protection device for a needle milling machine, comprising an electrical control system, a servo motor, and a worktable, wherein the servo motor and the worktable are both connected to the electrical control system, the servo motor is used to drive the milling cutter to rotate, and the worktable is used to mount the workpiece; characterized in that: The monitoring and protection device also includes: Servo driver, which is used to control servo motors and monitor the torque of servo motors; Vibration sensors are installed on workpieces to monitor vibration levels in real time. The microcontroller, servo driver, and vibration sensor are all connected to the microcontroller. Display device; The host computer, electrical control system, display device and microcontroller are all connected to the host computer.

2. The monitoring and protection device for a needle milling machine according to claim 1, characterized in that, The display parameters of the display device include the real-time torque value of the servo motor, the reference torque value of the servo motor, the real-time vibration value of the workpiece, the reference vibration value of the workpiece, and alarm information.

3. The monitoring and protection device for a needle milling machine according to claim 1, characterized in that, The monitoring and protection device also includes a data server, and the host computer is connected to the data server.

4. The monitoring and protection device for a needle milling machine according to claim 1, characterized in that, A conductive slip ring is installed at the center of the top of the workpiece. One end of the conductive slip ring wire is connected to the vibration sensor, and the other end of the conductive slip ring wire is connected to the microcontroller.

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