Intelligent control system of groove pressing machine and method for groove pressing operation of pipe fittings

Abstract

The present invention discloses an intelligent control system for a slotting machine and a method for slotting a pipe fitting. The system is used for intelligently monitoring the slotting operation of the pipe fitting, and includes an intelligent display module, a central control module, a monitoring module and a communication module. The communication module includes a first communication module and a second communication module. The intelligent display module and the central control module are connected to each other by the first communication module, and the central control module and the monitoring module are connected to each other by the second communication module. The monitoring module includes a detection module, a driving module and a processing module. The detection module is used to detect the state of the pipe fitting and the slotting machine, the processing module is used to process the signal collected by the detection module, and the driving module is used to adjust the state of the pipe fitting and the slotting machine. The intelligent control system for the slotting machine provided by the present invention is easy to operate, saves manpower, can realize real-time monitoring and control of the slotting operation of the pipe fitting, can automatically adjust the state of the pipe fitting and the slotting machine during the slotting operation of the pipe fitting, and is suitable for assembly line operation.

Description

Technical Field

[0001] The invention relates to the technical field of pipe grooving, and in particular to an intelligent control system of a grooving machine and a pipe grooving operation method. Background Art

[0002] In the process of grooving pipe fittings, it is necessary not only to complete the grooving of the pipe mouth and the correction of the bell mouth after grooving, but also to correct the inclination of the groove and make the pipe mouth flat if the inclination exceeds the tolerance in order to prevent the pipe mouth from being sealed during connection. Therefore, the state of the grooving machine and pipe fittings needs to be constantly adjusted during the grooving operation to produce qualified grooved pipe fittings. Existing pipe fittings need to rely on manual grooving monitoring during grooving, and cannot automatically and effectively regulate the grooving operation in a timely manner. The grooving operation is prone to errors, resulting in unnecessary economic losses. Therefore, there is an urgent need for a stable and reliable intelligent grooving system that can replace manual monitoring. Summary of the invention

[0003] In view of the defects of current manual pipe grooving, the present invention aims to provide a grooving machine control system and a pipe grooving operation method which are easy to operate and maintain, have low labor intensity, high work efficiency, and are suitable for assembly line operations to solve the above problems.

[0004] In the first aspect, the present invention provides an intelligent control system for a groove pressing machine, which is used for intelligently monitoring the groove pressing operation of pipe fittings, including an intelligent display module, a central control module, a monitoring module and a data acquisition and communication module. The data acquisition and communication module includes a first communication module and a second communication module. The intelligent display module and the central control module are communicatively connected via the first communication module, and the central control module and the monitoring module are communicatively connected via the second communication module. The intelligent display module displays the status of the pipe fittings and the groove pressing machine under the control of the central control module. The monitoring module includes a detection module, a drive module and a processing module. The detection module includes a plurality of sensors for detecting the status of the pipe fittings and the groove pressing machine. The processing module includes a plurality of processors for processing the signals collected by the detection module. The drive module includes a plurality of drivers for adjusting the status of the pipe fittings and the groove pressing machine under the control of the central control module.

[0005] Furthermore, the detection module includes a horizontality sensor, a verticality sensor, a displacement sensor and a laser sensor. The horizontality sensor is used to detect the horizontality of the pipe fitting, the verticality sensor is used to detect the verticality of the pipe fitting, the laser sensor is used to detect whether the pipe fitting is located on the operating table, and the displacement sensor is used to detect the downward pressing distance of the cam assembly of the groove pressing machine.

[0006] Furthermore, the driving module includes a workstation transfer motor driver, a spindle motor driver, a cylinder motor driver and a roller motor driver. The workstation transfer motor driver is used to control the movement of the pipe on the operating table, the spindle motor driver is used to control the rotation of the concave wheel of the groove pressing machine, and the cylinder motor driver is used to control the downward pressure of the cam assembly of the groove pressing machine. The concave wheel and the cam assembly cooperate to realize the groove pressing of the pipe.

[0007] Furthermore, each driver in the driving module is coupled to a relay respectively, and the central control module controls the opening and closing of each driver by controlling each relay.

[0008] Furthermore, the processing module includes a displacement acquisition processor, a horizontality acquisition processor, a verticality acquisition processor and a laser acquisition processor.

[0009] Furthermore, the central control module includes a PLC controller (programmable logic controller) and a storage module. The PLC controller is used to control the intelligent display module and the monitoring module. The storage module stores various parameter data for the grooving operation.

[0010] Furthermore, the first communication module and the second communication module both use RS485 bus, and the intelligent display module uses a liquid crystal display screen.

[0011] In a second aspect, the present invention further provides a pipe grooving operation method using the above-mentioned grooving machine intelligent control system, comprising the following steps:

[0012] Step S1: Detect whether the pipe has been placed on the operating table, and control whether the station transfer motor driver starts working based on the detection result;

[0013] Step S2: Detect the horizontality and verticality of the pipe, and control the roller motor driver to start working based on the detection result;

[0014] Step S3: measuring the downward pressing distance of the cam assembly, and controlling the cylinder motor driver and the spindle motor driver to start working based on the measurement result, and finally completing the grooving of the pipe fitting.

[0015] Furthermore, step S1 is specifically as follows: using a laser sensor to detect whether the pipe has been placed on the operating table, the laser acquisition processor processes the signal collected by the laser sensor, and transmits the processed signal to the central control module through the second communication module, the central control module determines whether the pipe has been placed on the operating table, if it is detected that the pipe is not placed on the operating table, the central control module controls the workstation transfer motor driver to start working to transfer the pipe to the operating table, until it is detected that the pipe has been placed on the operating table, and transmits the result to the intelligent display module through the first communication module for display.

[0016] Furthermore, step S2 is specifically as follows: using a horizontality sensor and a verticality sensor to detect the pipe fittings, the horizontality acquisition processor and the verticality acquisition processor respectively process the signals collected by the horizontality sensor and the verticality sensor, and the processed signals are transmitted to the central control module through the second communication module. The PLC controller compares and judges the data represented by the processed signal with the data stored in the storage module. If the comparison result is inconsistent, the central control module controls the roller motor driver to adjust the horizontality and verticality of the pipe fitting until the comparison result is consistent; if the comparison result is consistent, it is judged that the horizontality and verticality of the pipe fitting placement meet the requirements of the grooving operation, and the adjustment of the horizontality and verticality of the pipe fitting is displayed on the intelligent display module.

[0017] Furthermore, step S3 is specifically as follows: the central control module controls the oil cylinder motor driver to work so that the cam assembly of the groove pressing machine starts to press down, and at the same time, uses a displacement sensor to measure the pressing distance of the cam assembly, the displacement acquisition processor processes the signal collected by the displacement sensor, and transmits the processed signal to the central control module through the second communication module, and the PLC controller compares the data represented by the processed signal with the pressing distance data stored in the storage module. If the comparison result is inconsistent, the central control module controls the oil cylinder motor driver to continue working and adjusts the pressing distance of the cam assembly until the comparison result is consistent. When the comparison result is consistent, the central control module controls the spindle motor driver to start working to make the cam wheel start to rotate, and with the cooperation of the cam wheel and the cam assembly, the grooving operation of the pipe fitting is completed, and then the completion of the pipe grooving is displayed on the intelligent display module.

[0018] The beneficial effects of the present invention include but are not limited to the following technical effects:

[0019] (1) The intelligent control system for the slotting machine of the present invention is easy to operate, has low labor intensity, and high work efficiency. It can realize real-time monitoring and operation control of the slotting operation, and can automatically adjust the state of the pipe fittings and the slotting machine during the slotting operation, which is suitable for assembly line operation;

[0020] (2) In the slotting machine intelligent control system of the present invention, there can be multiple sets of monitoring modules and second communication modules, and RS485 bus communication is adopted between the hardware modules. The signal transmission distance is long, and one host can serve multiple slaves to better adapt to the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the intelligent control system of the groove pressing machine of the present invention;

[0022] Figure 2 The present invention is a flow chart of a pipe fitting grooving operation method using the intelligent control system of the grooving machine of the present invention;

[0023] Figure 3 It is a flow chart for detecting whether a pipe fitting is placed on the operating table in the pipe fitting groove pressing operation method;

[0024] Figure 4 A flow chart for detecting the horizontality and verticality of pipe fittings in the pipe fitting groove operation method;

[0025] Figure 5 The present invention is a flow chart of a grooving machine performing grooving on a pipe fitting in a pipe grooving operation method.

[0026] Among them: 10, intelligent operation and display module; 20, central control module; 21, PLC controller; 22, storage module; 30, monitoring module; 31, detection module; 311, horizontality sensor; 312, verticality sensor; 313, displacement sensor; 314, laser sensor; 32, driving module; 33, processing module; 331, displacement acquisition processor; 332, horizontality acquisition processor; 333, verticality acquisition processor; 334, laser acquisition processor; 41, first communication module; 42, second communication module. DETAILED DESCRIPTION

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] like Figure 1 As shown, the present invention provides an intelligent control system for a groove pressing machine, which is used for intelligently monitoring the groove pressing operation of pipe fittings, including an intelligent operation and display module 10, a central control module 20, a monitoring module 30 and a data acquisition and communication module, the data acquisition and communication module including a first communication module 41 and a second communication module 42, the intelligent operation and display module 10 and the central control module 20 are communicatively connected via the first communication module 41, the central control module 20 and the monitoring module 30 are communicatively connected via the second communication module 42, the first communication module 41 and the second communication module 42 both use RS485 bus, and the intelligent operation and display module 10 displays the status of pipe fittings and the groove pressing machine under the control of the central control module 20.

[0029] The central control module 20 includes a PLC controller 21 and a storage module 22. The PLC controller 21 is used to control the intelligent operation and display module 10 and the monitoring module 30. The storage module 22 stores various parameters for the grooving operation. The intelligent operation and display module 10 uses a liquid crystal display screen.

[0030] The monitoring module 30 includes a detection module 31, a driving module 32 and a processing module 33. The detection module 31 includes a level sensor 311, a vertical sensor 312, a displacement sensor 313 and a laser sensor 314. The level sensor 311 is used to detect the level of the pipe, the vertical sensor 312 is used to detect the verticality of the pipe, and the laser sensor 314 is used to detect whether the pipe is located on the operating table. The processing module 33 includes a displacement acquisition processor 331, a level acquisition processor 332, a vertical acquisition processor 333 and a laser acquisition processor 334, which are respectively used to process the signals collected by the detection module 31. The driving module 32 includes a station transmission motor driver, a spindle motor driver, a cylinder motor driver and a roller motor driver. The station transmission motor driver is used to control the movement of the pipe on the operating table, the spindle motor driver is used to control the rotation of the concave wheel of the groove pressing machine, and the cylinder motor driver is used to control the downward pressure of the cam assembly of the groove pressing machine. The concave wheel and the cam assembly cooperate to realize the groove pressing of the pipe. Each driver in the driving module 32 is coupled to a relay, and the central control module 20 controls the opening and closing of each driver by controlling each relay.

[0031] Reference Figure 2-5 The pipe grooving operation method using the above-mentioned grooving machine intelligent control system includes the following steps:

[0032] S1, detects whether the pipe has been placed on the operating table, and controls whether the station transfer motor driver starts working based on the detection result. Specifically, the laser sensor 314 is used to detect whether the pipe has been placed on the operating table. The laser acquisition processor 334 processes the signal collected by the laser sensor 314, and transmits the processed signal to the central control module 20 through the second communication module 42. The central control module 20 determines whether the pipe has been placed on the operating table. If it is detected that the pipe is not placed on the operating table, the central control module 20 controls the station transfer motor driver to start working to transfer the pipe to the operating table until it is detected that the pipe has been placed on the operating table, and transmits the result to the intelligent operation display module 10 through the first communication module 41 for display.

[0033] S2, detect the horizontality and verticality of the pipe fitting, and control whether the roller motor driver starts working based on the detection result. Specifically, the horizontality sensor 311 and the verticality sensor 312 are used to detect the pipe fitting, and the horizontality acquisition processor 332 and the verticality acquisition processor 333 process the signals collected by the horizontality sensor 311 and the verticality sensor 312 respectively, and transmit the processed signals to the central control module 20 through the second communication module 42. The PLC controller 21 compares and judges the data represented by the processed signal with the data stored in the storage module 22. If the comparison result is inconsistent, the central control module 20 controls the roller motor driver to work and adjust the horizontality and verticality of the pipe fitting until the comparison result is consistent; if the comparison result is consistent, it is determined that the horizontality and verticality of the pipe fitting placement meet the requirements of the grooving operation, and the adjustment of the horizontality and verticality of the pipe fitting is completed on the intelligent operation display module 10.

[0034] S3, measure the downward pressing distance of the cam assembly, and control the cylinder motor driver and the spindle motor driver to start working based on the measurement result, and finally complete the pipe grooving. Specifically, the central control module 20 controls the cylinder motor driver to work so that the cam assembly of the grooving machine starts to press down. At the same time, the displacement sensor 313 is used to measure the downward pressing distance of the cam assembly. The displacement acquisition processor 331 processes the signal collected by the displacement sensor 313, and transmits the processed signal to the central control module 20 through the second communication module 42. The PLC controller 21 compares the data represented by the processed signal with the downward pressing distance data stored in the storage module 22. If the comparison result is inconsistent, the central control module 20 controls the cylinder motor driver to continue working and adjusts the downward pressing distance of the cam assembly until the comparison result is consistent. When the comparison result is consistent, the central control module 20 controls the spindle motor driver to start working to make the concave wheel start to rotate. Under the cooperation of the concave wheel and the cam assembly, the grooving operation of the pipe is completed, and then the pipe grooving is displayed on the intelligent operation display module 10.

[0035] In the above-mentioned pipe grooving operation method, the central control module 20 compares and judges the data represented by the signals collected by each sensor with the parameter data stored in the storage module 22, and reasonably controls the opening and closing of each driver, so that the pipes and the grooving machine in the grooving operation are in a dynamic balance, thereby improving the qualified rate of the finished grooved pipes.

[0036] In other embodiments, the monitoring module 30 and the second communication module 42 in the intelligent control system of the slotting machine are not limited to one set, and can be multiple sets, which can be reasonably increased according to the number of slotting machines and monitoring requirements.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention.

Claims

1. The intelligent control system of the groove pressing machine is used to intelligently monitor the groove pressing operation of the pipe fittings, and is characterized by: The invention comprises an intelligent operation and display module (10), a central control module (20), a monitoring module (30) and a digital acquisition and communication module, wherein the digital acquisition and communication module comprises a first communication module (41) and a second communication module (42), wherein the intelligent operation and display module (10) and the central control module (20) are connected in communication via the first communication module (41), and wherein the central control module (20) and the monitoring module (30) are connected in communication via the second communication module (42), wherein the intelligent operation and display module (10) displays the status of the pipe fitting and the groove pressing machine under the control of the central control module (20), wherein the monitoring module (30) comprises a detection module (31), a driving module (32) and a processing module (33), wherein the detection module (31) comprises a plurality of sensors for detecting the status of the pipe fitting and the groove pressing machine, wherein the processing module (33) comprises a plurality of processors for processing the signals collected by the detection module (31), and wherein the driving module (32) comprises a plurality of drivers for adjusting the status of the pipe fitting and the groove pressing machine under the control of the central control module (20); The detection module (31) comprises a horizontality sensor (311), a verticality sensor (312), a displacement sensor (313) and a laser sensor (314); the horizontality sensor (311) is used to detect the horizontality of the pipe fitting, the verticality sensor (312) is used to detect the verticality of the pipe fitting, the laser sensor (314) is used to detect whether the pipe fitting is located on the operating table, and the displacement sensor (313) is used to detect the downward pressing distance of the cam assembly of the slotting machine; The central control module (20) comprises a PLC controller (21) and a storage module (22), wherein the PLC controller (21) controls the intelligent operation display module (10) and the monitoring module (30), and the storage module (22) stores various parameter data for the groove pressing operation; The driving module (32) comprises a station transmission motor driver, a spindle motor driver, a cylinder motor driver and a roller motor driver, wherein the station transmission motor driver is used to control the movement of the pipe on the operating table, the spindle motor driver is used to control the rotation of the concave wheel of the groove pressing machine, and the cylinder motor driver is used to control the downward pressure of the cam assembly of the groove pressing machine, and the concave wheel and the cam assembly cooperate to realize the groove pressing of the pipe; The central control module (20) controls the opening and closing of each driver by comparing and judging the data represented by the signals collected by each sensor with the parameter data stored in the storage module (22).

2. The intelligent control system for a slotting machine according to claim 1 is characterized in that: Each driver in the driving module (32) is respectively coupled to a relay, and the central control module (20) controls the opening and closing of each driver by controlling each relay.

3. The intelligent control system for a slotting machine according to claim 2 is characterized in that: The processing module (33) comprises a displacement acquisition processor (331), a horizontality acquisition processor (332), a verticality acquisition processor (333) and a laser acquisition processor (334).

4. The intelligent control system for a slotting machine according to claim 3 is characterized in that: The first communication module (41) and the second communication module (42) are both RS485 buses, and the intelligent operation and display module (10) is a liquid crystal display screen.

5. A method for performing pipe grooving operation using the intelligent grooving machine control system as claimed in claim 3 or 4, characterized in that: The steps include: Step S1: Detect whether the pipe has been placed on the operating table, and control whether the station transfer motor driver starts working based on the detection result; Step S2: Detect the horizontality and verticality of the pipe, and control the roller motor driver to start working based on the detection result; Step S3: measuring the downward pressing distance of the cam assembly, and controlling the cylinder motor driver and the spindle motor driver to start working based on the measurement result, and finally completing the grooving of the pipe fitting.

6. The method for grooving a pipe fitting according to claim 5, characterized in that: The step S1 specifically comprises: using a laser sensor (314) to detect whether the pipe has been placed on the operating table, the laser acquisition processor (334) to process the signal collected by the laser sensor (314), and transmit the processed signal to the central control module (20) through the second communication module (42), the central control module (20) to judge whether the pipe has been placed on the operating table, if it is detected that the pipe has not been placed on the operating table, the central control module (20) controls the station transfer motor driver to start working, so as to transfer the pipe to the operating table, until it is detected that the pipe has been placed on the operating table, and transmits the result to the intelligent operation display module (10) through the first communication module (41) for display.

7. The method for grooving a pipe fitting according to claim 6, characterized in that: The step S2 specifically comprises: using a horizontality sensor (311) and a verticality sensor (312) to detect the pipe fittings, the horizontality acquisition processor (332) and the verticality acquisition processor (333) respectively process the signals collected by the horizontality sensor (311) and the verticality sensor (312), and transmitting the processed signals to the central control module (20) through the second communication module (42), and the PLC controller (21) compares and judges the data represented by the processed signals with the data stored in the storage module (22); if the comparison results are inconsistent, the central control module (20) controls the roller motor driver to operate, and adjusts the horizontality and verticality of the pipe fittings until the comparison results are consistent; If the comparison results are consistent, it is determined that the horizontality and verticality of the pipe fitting placement meet the requirements of the groove pressing operation, and the intelligent operation display module (10) displays that the adjustment of the horizontality and verticality of the pipe fitting has been completed.

8. The method for grooving a pipe fitting according to claim 6, characterized in that: The step S3 is specifically as follows: the central control module (20) controls the oil cylinder motor driver to start working so that the cam assembly of the groove pressing machine starts to press down, and at the same time, uses the displacement sensor (313) to measure the pressing distance of the cam assembly, the displacement acquisition processor (331) processes the signal collected by the displacement sensor (313), and transmits the processed signal to the central control module (20) through the second communication module (42), and the PLC controller (21) compares the data represented by the processed signal with the pressing distance data stored in the storage module (22). If the comparison result is inconsistent, the central control module (20) controls the oil cylinder motor driver to continue working and adjusts the pressing distance of the cam assembly until the comparison result is consistent. When the comparison result is consistent, the central control module (20) controls the spindle motor driver to start working so that the cam wheel starts to rotate, and with the cooperation of the cam wheel and the cam assembly, the groove pressing operation of the pipe fitting is completed, and then the intelligent operation display module (10) displays that the pipe fitting groove pressing is completed.

Images