TWM641918U - Thread processing machine monitoring system - Google Patents

Abstract

A thread processing machine monitoring system. The control unit is based on a processing file transmitted from the input unit, and the processing file has taken into account the machine rigidity and servo control of the processing machine. The control unit sends the first control command according to the first sensing signal sent from the first sensor, and sends the second control command according to the second sensing signal sent from the second sensor. The first control command and the second control command are respectively transmitted to the first driving device and the second driving device, so as to control the first driving device or the second driving device to perform corresponding actions to the workpiece. Thread processing, thereby judging whether the current thread processing process of the workpiece is abnormal.

Description

Thread processing machine monitoring system

This creation relates to a thread processing field, in particular to a thread processing diagnostic monitoring system.

Machine tools generally require the use of thread processing technology, but there are many types of thread processing technology problems, and there are corresponding different solutions for different reasons. Generally, as long as end customers encounter thread processing problems and cannot solve them, manufacturers All will need to send personnel to assist, or through online support, but it often requires a lot of time and labor costs on both sides.

On the other hand, different machines adopt different solutions to thread processing problems, and usually rely heavily on the user's past processing experience to solve them.

Among them, the patent CN111479653A discloses an automatic diagnosis method for turning thread, which continuously calculates the thread error through the actual speed of the spindle and the actual speed of the feed axis to obtain a thread error curve, and analyzes the cause of the error according to the thread error curve. However, the patent CN111479653A can only solve the problem of thread abnormality in specific thread processing by extracting the two pieces of information, the spindle speed and the feed shaft speed during thread processing. On the other hand, this patent can only analyze the cause of the problem, but cannot solve the problem through automatic adjustment.

The purpose of this creation is to provide a thread processing diagnosis and monitoring system, so that the system can analyze the current thread processing problems, and summarize the problems and the causes of the problems, and automatically adjust according to the causes of the problems, greatly reducing the time, manpower and cost of troubleshooting. Communication costs.

Another purpose of this creation is to provide a thread processing diagnosis and monitoring system, which uses the CNC control device to increase the thread processing problem diagnosis function, and refers to the processing file, the tool axis encoder, and the workpiece axis encoder to solve different thread processing problems. Analyze the phenomenon and provide solutions, and automatically adjust the stroke parameters according to the problem, greatly reducing the time for troubleshooting.

In order to achieve the above purpose, the invention provides a thread processing machine monitoring system, which is applied to a processing machine for thread processing, including: a first driving device coupled to a first sensor; a second driving device coupled to a The second sensor; a control unit coupled to the first drive device, the second drive device, the first sensor, the second sensor and an input unit; the control unit is transmitted from the input unit A processing gear is used for thread processing a workpiece, and the processing gear has considered a machine rigidity and a servo control of the processing machine. The control unit issues a first control command and a second control command according to a first sensing signal from the first sensor and a second sensing signal from the second sensor, and sending the first control command and the second control command to the first drive device and the second drive device respectively, so as to control the first drive device and the second drive device to perform corresponding actions, thereby It is judged whether the current threading process of the workpiece is abnormal.

Compared with the previous technology, the present invention uses the control unit according to the processing file transmitted from the input unit, the processing file has considered the machine rigidity and servo control of the processing machine; according to the processing file, workpiece axis information and tool axis Information, analyze and provide solutions to different thread processing problems, and automatically adjust stroke parameters. Among them, the processing file is the processing command generated by the servo control considering the performance of the machine, and the information of the workpiece axis and the tool axis can be converted from the encoder signal to obtain the rotation speed and Location. The control unit will automatically carry out the corresponding detection process for the thread processing problems encountered by the user, and provide the corresponding solution for the user and can also perform automatic adjustment, which can greatly reduce the processing time cost and labor cost.

100: The first driving device

101: The first driving current

103: The third driving current

105: fifth driving current

107: The seventh driving current

109: ninth drive current

110: the first sensor

111: The first sensing signal

120: the third sensor

121: The third sensing signal

200: Second drive device

201: second driving current

203: The fourth driving current

205: The sixth driving current

207: The eighth drive current

209: Tenth driving current

210: the second sensor

211: The second sensing signal

220: the fourth sensor

221: The fourth sensing signal

300: control unit

301: First control command

302: Second control command

303: The third control command

304: The fourth control command

305: fifth control command

306: The sixth control order

307: The seventh control command

308: Eighth control command

309: Ninth Control Order

310: Tenth control command

400: input unit

410: processing file

500: Visual inspection device

600: vibration sensor

700: remote storage monitoring device

Point A: Tool starting point

Point B: starting point of thread processing

Point C: starting point of retreat

D point: middle point

Point E: end point

F point: thread starting point

[Figure 1] is the first block diagram of the monitoring system of the thread processing machine in this case.

[Fig. 2] is a schematic diagram of a threading cycle.

[Fig. 3] is the second schematic block diagram of the monitoring system of the thread processing machine in this case.

[Fig. 4] is the third schematic block diagram of the thread processing machine monitoring system in this case.

[Fig. 5] is the fourth schematic diagram of the monitoring system of the thread processing machine in this case.

[Fig. 6] is the fifth block diagram of the thread processing machine monitoring system in this case.

[Fig. 7] is the sixth schematic diagram of the monitoring system of the thread processing machine in this case.

[Fig. 8] is the block schematic diagram VII of the thread processing machine monitoring system in this case.

Various embodiments of the present creation will be described in detail below, and the accompanying drawings are used as examples. In addition to these detailed descriptions, this creation can also be widely implemented in other embodiments, and any easy replacement, modification, and equivalent changes of any of the described embodiments are included in the scope of this creation, and the scope of the patent application is allow. In the description of the manual, many specific details are provided in order to enable readers to have a more complete understanding of the invention; however, the invention may still be implemented under the premise of omitting some or all of the specific details. Also, well-known steps or elements have not been described in detail in order to avoid unnecessarily limiting the invention. The same or similar elements in the drawings will be denoted by the same or similar symbols. In particular, note that Fig. The formula is for illustration only, and does not represent the actual size or quantity of the components. Some details may not be fully drawn for the sake of simplicity of the drawing.

Please refer to Figure 1, which is a schematic block diagram of the monitoring system of the thread processing machine in this case. This case is a thread processing machine monitoring system, which is applied to a processing machine for thread processing. In practice, the thread processing machine monitoring system at least includes: a first driving device 100 coupled to a first sensor 110; a The second driving device 200 is coupled to a second sensor 210 . In practice, the first driving device 100 can be a tool shaft motor, the first sensor 110 is a tool shaft encoder; the second driving device 200 can be a workpiece shaft motor, and the second sensor 210 is a workpiece shaft Encoder.

A control unit 300 is coupled to the first driving device 100 , the second driving device 200 , the first sensor 110 , the second sensor 210 and an input unit 400 . In terms of implementation, the control unit 300 can be the controller of the processing machine, and the input unit 400 is not limited to input methods, and can be an input interface on the processing machine or an external device (such as a laptop).

In practice, the control unit 300 performs thread processing on a workpiece by a processing file 410 transmitted from the input unit 400. The processing file 410 has considered a machine rigidity and a servo control of the processing machine; wherein, the machine The rigidity of the machine includes the static rigidity of the machine (the anti-deformation ability of the machine under the action of external force) or the dynamic rigidity of the machine (the vibration response of the machine under the action of external force); the servo control includes the dynamic In addition to process parameters (such as: motor speed, motor moving speed, retraction angle parameters or retraction length parameters, etc.) or the servo parameters of the machine (current, speed, position control loop related parameters), it also includes servo delay or command delay or communication delays. The control unit 300 is based on a first sensing signal 111 from the first sensor 110 and a second sensing signal 211 from the second sensor 210 (the first sensing signal 111 is the position of the tool axis, the second sensing signal 211 is the position of the workpiece axis) issue a first control command 301 and a second control command 302, and transmit the first control command 301 and the second control command 302 respectively To the first driving device 100 and the second driving device 200, to control the first driving device 100 and the second driving device 200 to perform corresponding actions, so as to determine whether the current threading process of the workpiece is abnormal .

In terms of implementation and application, the threading machine monitoring method of this case is that the control unit 300 is based on the processing file 410 transmitted from the input unit 400, and the processing file 410 has considered the machine rigidity and servo control of the processing machine. The control unit 300 issues the first control command 301 according to the first sensing signal 111 from the first sensor 110 and the second sensing signal 211 from the second sensor 210 This second control command 302 is issued. The first control command 301 and the second control command 302 are respectively sent to the first drive device 100 and the second drive device 200 to control the first drive device 100 or the second drive device 200 to execute the corresponding The action of threading the workpiece is used to judge whether the current threading process of the workpiece is abnormal.

Please refer to Figure 2, which is a schematic diagram of the thread machining cycle. The cutting cycle of the thread machining process is taken as an example for external thread machining. The relationship between the tool and the workpiece is: point A (start point of the tool), point B (start point of thread point), C (starting point of retraction (retraction starting point)), D point (middle point), E point (end point), F point (thread starting point). Judging whether there is an abnormality in the processing process, the implementation instructions will use these points and whether there is an abnormality between points as the diagnosis process of the thread processing problem in this case, and the control unit 300 will automatically respond to the thread processing problems encountered by the user. detection process and provide corresponding solutions for users.

In terms of implementation and application, please refer to FIG. 3 , when the control unit does not receive the first sensing signal 111 or the second sensing signal 211, it means that an unexpected interruption has occurred in the thread processing process (such as : stuck during processing). At this time, the control unit 300 will send a third control command 303 or a fourth control command 304 to the first driving device 100 or the second driving device 200 to drive the The first driving device 100 or the second driving device 200 is used to determine whether the hardware wiring of the threading machine monitoring system is normal.

When the first driving device 100 or the second driving device 200 does not execute the corresponding action according to the third control command 303 or the fourth control command 304, it means that the hardware wiring is abnormal, and the control unit 300 will send out a warning signal , the warning signal can be displayed on the aforementioned input unit 400, and can also be displayed on an external warning device. In this embodiment, the control unit 300 of the present invention can troubleshoot the wiring abnormality (such as falling off or damage) of the first driving device 100 (tool axis motor) or the second driving device 200 (workpiece axis motor) Caused threading problems and alerts the user.

When the first driving device 100 or the second driving device 200 executes the corresponding action according to the third control command 303 or the fourth control command 304, it means that the hardware wiring is normal, so the threading process occurs without the user The expected interruption may be caused by an unreasonable rotational speed of the first driving device 100 or the second driving device 200 . In this embodiment, the control unit 300 will calculate the rotational speed of the first driving device 100 or the second driving device 200 within an operating range, and subsequently the first driving device 100 or the second driving device 200 will The third control command 303 or the fourth control command 304 issued by the control unit 300 performs machining at the adjusted rotational speed. Wherein, when the control unit 300 calculates that the rotational speed of the first driving device 100 or the second driving device 200 is not within the operating range, the control unit 300 will send a warning signal. In the present invention, the rotational speed operating range of the first driving device 100 or the second driving device 200 usually varies according to the type of motor, which is not particularly limited in the present invention.

Please refer to FIG. 2 and FIG. 4 again. In the application of judging whether the front end of the thread is regular and abnormal during thread processing, the control unit 300 receives a thread processing starting point (point B) and a thread starting point (point F). ), the first driving current 101 from the first driving device 100 or the second driving device 200 A second drive current 201, the control unit 300 calculates a first load rate according to the first drive current 101 or calculates a second load rate according to the second drive current 201; the control unit 300 uses the first The change data of the load rate or the second load rate calculates a first distance between the threading starting point (point B) and the screw thread starting point (F point) at the moment of processing, and the control unit 300 will The first distance is compared with a preset distance between the thread processing start point (B point) and the screw thread start point (F point) in the processing file 410 . In this creation, the user can adjust the preset distance according to the actual processing situation.

When the control unit 300 judges that the first distance is less than or greater than the preset distance, the control unit sends a fifth control command 305 or a sixth control command 306 to control the first driving device 100 or the second driving device 200, until the difference between the first distance and the preset distance is within an error range. In this creation, the user can adjust the error range according to the actual processing situation. Ideally, the difference between the first distance and the preset distance will be within the error range. However, when the difference between the first distance and the preset distance is not within the error range, it means that the thread processing machine may have component loss (eg, motor belt loss or screw loss). Therefore, there will be a problem that the regularity of the front end of the thread is abnormal during thread processing.

Please refer to FIG. 2 and FIG. 5 again. In the application of judging whether there is an abnormality at the rear end of the thread during the thread processing (after the starting point C of the tail retreat), the control unit 300 obtains a normal processing state according to the processing file 410 The position of the tailing start point (point C), and according to a third driving current 103 of the first driving device 100 or the second driving device 200 at the tailing starting point (point C) or A fourth driving current 203 respectively calculates a third load rate or a fourth load rate; and the control unit 300 obtains a tailing starting point (point C) of an actual processing state from the first sensing signal 111 position, that is, the X-axis starts to move or the Z-axis speed is zero, and a fifth driving current 105 or a sixth driving current 205 of the first driving device 100 or the second driving device 200 at that time is used to calculate a first driving current 205 respectively. Five loading ratios or one sixth loading ratio.

When the control unit 300 determines that the difference between the fifth load rate or the sixth load rate in the actual processing state and the third load rate or the fourth load rate in the normal processing state is outside a first range, the The control unit sends a seventh control command 307 or an eighth control command 308 to drive the first driving device 100 or the second driving device 200 to adjust the first driving device 100 or the second driving device The rotating speed of 200, or the moving speed, or the parameter of retracting tail length (retracting tool length), or the parameter of retracting tail angle (retracting tool angle), or the acceleration and deceleration time parameters of the first driving device 100 or the second driving device 200, by This reduces the fifth load rate or the sixth load rate at the tailing start point (point C) of the actual processing state. In this invention, the user can adjust the first range according to the actual situation.

Furthermore, when the control unit 300 sends the seventh control command 307 or the eighth control command 308 to drive the first driving device 100 or the second driving device 200, to adjust the first driving device 100 or the second driving device The rotation speed of the second driving device 200, or the moving speed, or the length of tail retraction, or the angle of tail retraction, or the acceleration and deceleration time parameters of the first driving device 100 or the second driving device 200 cannot reduce the actual processing state. When the fifth load rate or the sixth load rate is reached, the control unit 300 will send out a warning signal.

Please refer to Fig. 2 and Fig. 6 again, in judging whether there is an abnormality in the process of thread processing (between the starting point F of the thread thread and the starting point C of the thread retraction point), wherein, the control unit 300 is controlled by the processing File 410 knows the positions of the thread starting point (point F) and the tailing starting point (point C) under a normal processing state, and according to the normal processing state, the screw thread starting point (F point) to At the position of the starting point of tailing (point C), a seventh driving current 107 or an eighth driving current 207 of the first driving device 100 or the second driving device 200 respectively calculates a seventh load factor or An eighth load rate; and, when the control unit 300 is from an actual processing state at the thread starting point (point F) to the tailing starting point (point C), the first driving device 100 or the first driving device 100 A ninth driving current 109 or a tenth driving current 209 of the second driving device 200 calculates a ninth load factor respectively or a tenth load rate; thereby, the control unit 300 calculates the position of the thread starting point (point F) in the actual processing state by the change of the ninth load rate or the tenth load rate, and The control unit 300 obtains the position of the trailing start point (point C) of the actual processing state from the first sensing signal 111 .

When the control unit 300 judges that the difference between the ninth load rate or the tenth load rate and the seventh load rate or the eighth load rate is outside a second range, the control unit 300 adjusts the processing instruction in the processing file 410 , and issue a corresponding ninth control command 309 or a tenth control command 310 to drive the first driving device 100 or the second driving device 200, thereby reducing the ninth load rate or the Tenth load factor.

Furthermore, when the control unit 300 adjusts the processing command in the processing file 410 and issues the corresponding ninth control command 309 or the tenth control command 310 to drive the first driving device 100 or the second driving device 200. When the ninth load rate or the tenth load rate of the actual processing state cannot be reduced, the control unit 300 sends a warning signal.

In practical applications, when the aforementioned load rate changes abnormally in the actual processing process, the control unit 300 can also judge whether the processing tool is abnormal according to the tool information (such as tool type, tool material) of a processing tool, for example, the tool is damaged. Or excessive wear will cause the load rate to be abnormal, and the control unit 300 can more accurately determine the cause of the abnormal change in the load rate through tool information.

Please refer to FIG. 7 again. The threading machine monitoring system of this case is being implemented and applied (the implementation mode is described based on the embodiment shown in FIG. 1 ), the control unit 300 can be further coupled to a visual detection device 500, such as an image capture device , CCD, camera, etc., to monitor abnormalities in the thread processing process through visual means. Utilize the visual monitoring mode of this visual detection device 500, have with advantage: 1. Can improve and judge A point (knife start point), B point (thread processing start point), C point (retraction start point) in the thread processing cycle Point), D point (middle point), E point (end point), F point (thread starting point) the accuracy of the position of each point; 2. Can detect tool setting Whether the method is wrong, such as whether the position of the tool tip point and the machined surface is as expected; 3. It can detect whether the workpiece or tool is clamped abnormally, such as unstable or mismatched.

In the application of the threading machine monitoring system in this case, the first driving device 100 is further provided with a vibration sensor 600, such as an accelerometer, for optimized detection of excessive threading vibration. In practice, the vibration sensor 600 can be attached to the tool shaft of the first driving device 100 , and the control unit 300 detects abnormal vibration during thread processing according to the signal sent by the vibration sensor 600 . The main function of the vibration sensor 600 is to replace the aforementioned load rate. For example, the front control unit 300 calculates a first load rate according to the first driving current 101. In practice, if the vibration value sent by the vibration sensor 600 is used instead , the control unit 300 can judge the distance between the two points (the first distance) according to the vibration values of the threading start point (B point) and the thread start point (F point).

In the application of the thread processing machine monitoring system in this case, the control unit 300 is further connected to a remote storage monitoring device 700 through the Internet to synchronize and store the monitoring status of the processing machine. In terms of implementation and application, the remote storage and monitoring device 700 can be a servo host to store the monitoring data of multiple thread processing machines, or it can be a remote computer for off-site operators to make monitoring records, so that the remote Users or monitors can simultaneously understand the processing status, and give warnings or other corresponding actions when abnormalities are detected during the processing. If there is manual adjustment data, the relevant processing information and the optimal parameters after adjustment can be uploaded to the remote storage monitoring device 700 in the cloud as a database for other similar problems in the future.

Please refer to FIG. 8 again. In the implementation and application of the threading machine monitoring system in this case, the first driving device 100 and the second driving device 200 are further coupled to a third sensor 120 and a fourth sensor 220 respectively. , the control unit 300 judges that a first transmission belt of the first driving device 100 (in practice, a tool shaft Whether the drive belt of the motor drives the tool shaft) is abnormal, or the control unit 300 judges the second driving device 200 according to the second sensing signal 211 and a fourth sensing signal 221 from the fourth sensor 220 Check whether the second transmission belt (in practice, the transmission belt of the workpiece shaft motor driven by the workpiece shaft) is abnormal.

In practice, the control unit 300 calculates the first transmission belt according to the angular displacement signal of the motor of the first driving device 100 (the first sensing signal 111) and the angular displacement signal of the tool shaft (the third sensing signal 121). The slip ratio of is calculated as follows:

In addition, the control unit 300 calculates the cumulative slip distance of the first transmission belt according to the following formula: cumulative slip distance= ∫ (the angular displacement signal (t) of the first sensor−the angular displacement signal (t) of the third sensor )dt

The control unit 300 calculates the slippage of the second transmission belt according to the angular displacement signal (second sensing signal 211 ) of the motor of the second driving device 200 and the angular displacement signal (fourth sensing signal 221 ) of the workpiece axis. ratio, calculated as follows:

In addition, the control unit 300 calculates the cumulative slip distance of the second transmission belt according to the following formula: cumulative slip distance= ∫ (the angular displacement signal (t) of the second sensor−the angular displacement signal (t) of the fourth sensor ))dt

In a further application, the control unit 300 can also calculate the slip ratio change rate according to the differential of the slip ratio with respect to time, and calculate the change rate of the slip cumulative distance according to the differential of the slip cumulative distance with respect to time. Through slip ratio, slip accumulative distance, slip ratio change rate, and slip accumulative distance change rate, it is possible to troubleshoot the belt transmission abnormality of the entire thread processing abnormality in the thread abnormality. If any of the distance, the rate of change of the slip ratio, and the rate of change of the cumulative distance of the skid exceeds the tolerance range, the control unit 300 will send out a warning signal for the user to check.

In terms of overall technology, this case technically refers to the processing file, tool axis encoder, and workpiece axis encoder. In the processing file, machine rigidity and servo control are considered, and the processing machine does not need to install additional sensors (only the original configuration of the tool is required) Shaft encoder and workpiece shaft encoder), this control unit can automatically check all problems in thread processing, analyze problems and provide solutions according to different thread processing problems, and can also automatically adjust stroke parameters according to problems. In this way, through the CNC control unit adding thread processing problem diagnosis function, the system will analyze the current thread processing problem phenomenon, and summarize the problem, the cause of the problem, and automatically adjust according to the cause of the problem, so that the troubleshooting can be greatly reduced time, manpower and communication costs.

The embodiments disclosed above are only illustrative of the principles, characteristics and effects of this creation, and are not intended to limit the scope of implementation of this creation. Anyone who is familiar with this technology can do so without violating the spirit and scope of this creation. Modifications and changes are made to the above-mentioned embodiments. Any equivalent changes and modifications accomplished by utilizing the content disclosed in this creation shall still be covered by the scope of the following patent application.

100: The first driving device

110: the first sensor

111: The first sensing signal

200: Second drive device

210: the second sensor

211: The second sensing signal

300: control unit

301: First control command

302: Second control command

400: input unit

410: processing file

Claims (17)

A thread processing machine monitoring system, applied to a processing machine for thread processing, comprising: a first driving device coupled to a first sensor; a second driving device coupled to a second sensor; a control unit, which is coupled to the first driving device, the second driving device, the first sensor, the second sensor and an input unit; The control unit performs thread processing on a workpiece by a processing file transmitted from the input unit, and the processing file has considered a machine rigidity and a servo control of the processing machine; the control unit is based on the first sensor A first sensing signal from the second sensor and a second sensing signal from the second sensor send a first control command and a second control command, and send the first control command and the second control command The control commands are respectively sent to the first driving device and the second driving device to control the first driving device and the second driving device to perform corresponding actions, thereby judging whether the current threading process of the workpiece is abnormal . The thread processing machine monitoring system as described in claim 1, wherein, when the control unit does not receive the first sensing signal or the second sensing signal, the control unit will issue a third control command or A fourth control command is sent to the first driving device or the second driving device to drive the first driving device or the second driving device, thereby judging whether the hardware wiring of the threading machine monitoring system is normal ; When the first driving device or the second driving device does not perform a corresponding action according to the third control command or the fourth control command, the control unit will send out a warning signal. The thread processing machine monitoring system as described in claim 1, wherein, when the control unit does not receive the first sensing signal or the second sensing signal, the control unit will issue a third control command or A fourth control command is sent to the first driving device or the second driving device to drive the first driving device or the second driving device, thereby judging whether the hardware wiring of the threading machine monitoring system is normal; When the first driving device or the second driving device executes the corresponding action according to the third control command or the fourth control command, the control unit will calculate the first driving device or the second driving device within an operating range The rotational speed of the driving device. Subsequently, the first driving device or the second driving device will perform processing according to the rotational speed adjusted by the control unit. The threading machine monitoring system according to claim 3, wherein when the control unit calculates that the rotational speed of the first driving device or the second driving device is not within the operating range, the control unit will send a warning signal. The thread processing machine monitoring system as described in claim 1, wherein, when the control unit receives a thread processing starting point and a thread starting point, a first driving current from the first driving device or the A second drive current from the second drive device, the control unit calculates a first load rate based on the first drive current or calculates a second load rate based on the second drive current; the control unit uses the first drive current to calculate a second load rate; A load rate or the change data of the second load rate calculates a first distance between the starting point of thread processing and the starting point of the screw thread at the moment of processing, and the control unit compares the first distance with the processing file A preset distance between the thread processing starting point and the thread starting point is compared. The threading machine monitoring system as described in claim 5, wherein, when the control unit judges that the first distance is less than or greater than the preset distance, the control unit sends a fifth control command or a sixth control command to control The first driving device or the second driving device until the difference between the first distance and the preset distance is within an error range. The thread processing machine monitoring system as described in Claim 1, wherein the control unit knows the position of the starting point of tail-out in a normal processing state according to the processing file, and according to the starting point of tail-out at the starting point, A third driving current or a fourth driving current of the first driving device or the second driving device respectively calculates a third load rate or a fourth load rate; and the control unit obtains from the first sensing signal Know the position of the starting point of tailing in an actual processing state, and calculate a fifth load rate or a The sixth load rate. The threading machine monitoring system as described in Claim 7, wherein when the control unit determines that the fifth load rate or the sixth load rate in the actual processing state is different from the third load rate or the sixth load rate in the normal processing state When the difference of the fourth load rate is outside a first range, the control unit sends a seventh control command or an eighth control command to drive the first driving device or the second driving device to adjust the The rotational speed of the first driving device or the second driving device, or the moving speed, or the tail length parameter, or the tail angle parameter, or the acceleration and deceleration time parameters of the first driving device or the second driving device, thereby reducing the The actual processing state is the fifth load rate or the sixth load rate at the tailing starting point. The threading machine monitoring system as described in Claim 8, wherein the control unit issues the seventh control command or the eighth control command to drive the first driving device or the second driving device to adjust the second driving device. The rotation speed of a driving device or the second driving device, or the moving speed, or the retraction length parameter, or the retraction angle parameter, or the acceleration and deceleration time parameters of the first driving device or the second driving device cannot reduce the current actual processing state When the fifth load rate or the sixth load rate is lower, the control unit will send a warning signal. The thread processing machine monitoring system as described in Claim 1, wherein the control unit knows the positions of the starting point of the thread thread and the starting point of the thread retraction in a normal processing state from the processing file, and according to the normal processing When the state is at the position from the starting point of the screw thread to the starting point of the retraction, a seventh driving current or an eighth driving current of the first driving device or the second driving device respectively calculates a seventh load rate Or an eighth load rate; and, when the control unit is from an actual processing state at the starting point of the screw thread to the starting point of the tailing, a ninth driving current of the first driving device or the second driving device or a tenth drive current to calculate a ninth load rate or a tenth load rate; thereby, the control unit calculates the actual processing state by changing the ninth load rate or the tenth load rate The position of the starting point of the screw thread, and the control unit obtains the position of the starting point of the tailing in the actual processing state from the first sensing signal. The threading machine monitoring system according to claim 10, wherein when the control unit determines that the difference between the ninth load rate or the tenth load rate and the seventh load rate or the eighth load rate is outside a second range , the control unit adjusts the processing command in the processing file, and issues a corresponding ninth control command or a tenth control command to drive the first driving device or the second driving device, thereby reducing the actual processing The ninth load rate or the tenth load rate of the state. The threading machine monitoring system as described in claim 11, wherein when the control unit adjusts the processing command in the processing file, and issues the corresponding ninth control command or the tenth control command to drive the first When the driving device or the second driving device cannot reduce the ninth load rate or the tenth load rate in the actual processing state, the control unit will send out a warning signal. The threading machine monitoring system according to claim 1, wherein the control unit is coupled to a visual detection device for monitoring abnormalities in the threading process. The thread processing machine monitoring system according to claim 1, wherein the first driving device is provided with a vibration sensor, and the control unit detects abnormal vibration during thread processing according to the signal sent by the vibration sensor. The thread processing machine monitoring system as described in Claim 1, wherein the control unit is further connected to a remote storage monitoring device through the Internet to synchronize and store the monitoring status of the processing machine. The thread processing machine monitoring system as described in claim 1, wherein, the first driving device and the second driving device are respectively coupled to a third sensor and a fourth sensor, and the control unit according to the first A sensing signal and a third sensing signal from the third sensor determine whether a first transmission belt of the first driving device is abnormal, or the control unit A fourth sensing signal from the four sensors determines whether a second transmission belt of the second driving device is abnormal. The threading machine monitoring system as described in claim 5, 7 or 10, wherein, when the load rate changes abnormally during the actual processing, the control unit judges whether the processing tool is abnormal according to the tool information of a processing tool .

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