Control system of longitudinal welded pipe forming machine

Abstract

The utility model discloses a control system of a longitudinal welded pipe forming machine, which relates to the technical field of longitudinal welded pipe forming machine control and comprises a main controller, a cable connector, a transfer connecting device and an auxiliary controller. The cable joint is detachably connected with the main controller or the transfer connecting device, and the transfer connecting device is connected with the auxiliary controller; and when the main controller is subjected to fault maintenance or upgrade maintenance, the cable joint is disconnected from the main controller, and the cable joint is connected with the transfer connection device. When the main controller carries out fault maintenance or upgrade maintenance, the main controller can be switched to the auxiliary controller to obtain real-time state information of a production line and issue corresponding control information, so that the longitudinal welded pipe forming machine has a certain redundancy control function, and the fault risk resistance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control of a straight seam welded pipe forming machine, in particular to a control system of a straight seam welded pipe forming machine. Background Art

[0002] Straight seam welded pipe forming machine refers to a welded pipe forming machine with a straight weld seam. Welded steel pipes are widely used in oil and natural gas transportation. The control system of the existing imported straight seam welded pipe forming machine adopts the MX4 multi-axis controller developed by Rexroth.

[0003] However, the spare parts of MX4 multi-axis controller are in short supply in the market, and the production may be stopped at any time due to the damage of MX4 multi-axis controller, and the anti-failure risk ability is low. Therefore, in order to ensure the smooth production of straight seam welded pipe forming machine using MX-4 multi-axis controller, it is urgent to improve the control system of the existing straight seam welded pipe forming machine. Utility Model Content

[0004] The embodiment of the utility model provides a control system of a straight seam welded pipe forming machine to solve the technical problem that the control system of the existing straight seam welded pipe forming machine has low anti-fault risk capability.

[0005] The embodiment of the utility model provides a control system for a straight seam welded pipe forming machine, comprising: a main controller, a cable connector, a transfer connection device and an auxiliary controller;

[0006] The cable connector is detachably connected to the main controller or the transfer connection device, and the transfer connection device is connected to the auxiliary controller;

[0007] When the main controller is to be repaired or upgraded, the cable connector is disconnected from the main controller and connected to the transfer connection device.

[0008] In some embodiments, the control system of the straight seam welded pipe forming machine further includes:

[0009] An input / output I / O module is connected to the transfer connection device and the auxiliary controller.

[0010] In some embodiments, the control system of the straight seam welded pipe forming machine further includes:

[0011] A secondary controller is connected to the main controller.

[0012] In some embodiments, the control system of the straight seam welded pipe forming machine further includes:

[0013] A DP / DP coupler is connected to the secondary controller and the auxiliary controller.

[0014] In some embodiments, the secondary controller is a Siemens S7-300 / S7-400 series PLC.

[0015] In some embodiments, the auxiliary controller is a S7-1500 series PLC.

[0016] In some embodiments, the control system of the straight seam welded pipe forming machine further includes:

[0017] A switch, wherein the switch is connected to the auxiliary controller;

[0018] An HMI human-machine interface is connected to the switch.

[0019] In some embodiments, the control system of the straight seam welded pipe forming machine further includes:

[0020] An information collection component is connected to the cable connector.

[0021] In some embodiments, the control system of the straight seam welded pipe forming machine further includes:

[0022] A drive assembly is connected to the cable connector.

[0023] In some embodiments, the relay connection device includes a plurality of interface modules.

[0024] The beneficial effects brought by the technical solution provided by the utility model include:

[0025] The embodiment of the utility model provides a control system for a straight seam welded pipe forming machine, which is provided with a transfer connection device and an auxiliary controller on the basis of the original main controller and cable connector. The transfer connection device is detachably connected to the cable connector. When the main controller is undergoing fault repair or upgrade maintenance, the cable connector is connected to the transfer connection device. At this time, the auxiliary controller is switched to obtain the real-time status information of the production line and issue the corresponding control information, so that the straight seam welded pipe forming machine has a certain redundant control function and improves the ability to resist fault risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1A schematic diagram of a control system of a straight seam welded pipe forming machine provided in an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of a transfer connection device provided in an embodiment of the utility model;

[0029] In the figure:

[0030] 1. Main controller;

[0031] 2. Cable connector;

[0032] 3. Transfer connection device; 301. Interface module;

[0033] 4. Auxiliary controller;

[0034] 5. Input and output I / O module;

[0035] 6. Secondary controller;

[0036] 7. DP / DP coupler;

[0037] 8. Switch;

[0038] 9. HMI human-machine interface;

[0039] 10. Information collection component;

[0040] 11. Drive components. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] The embodiment of the utility model provides a control system for a straight seam welded pipe forming machine, which can solve the technical problem of low fault risk resistance of the control system of the existing straight seam welded pipe forming machine.

[0043] See also Figure 1 As shown, an embodiment of the utility model provides a control system for a straight seam welded pipe forming machine, including: a main controller 1, a cable connector 2, a transfer connection device 3 and an auxiliary controller 4.

[0044] The cable connector 2 is detachably connected to the main controller 1 or the transfer connection device 3, and the transfer connection device 3 is connected to the auxiliary controller 4. When the main controller 1 is to be repaired or upgraded, the cable connector 2 is disconnected from the main controller 1 and connected to the transfer connection device 3.

[0045] Specifically, the control system of the straight seam welded pipe forming machine also includes an information acquisition component 10 and a drive component 11. The information acquisition component 10 is connected to the cable connector 2, and the drive component 11 is connected to the cable connector 2. The cable connector 2 can connect the information acquisition component 10 and the drive component 11 to the main controller 1 or the transfer connection device 3, thereby transmitting information. The information acquisition component 10 includes sensors, encoders, grating rulers, pressure gauges, etc. The information acquisition component 10 is used to obtain real-time status information of the production line through sensors, encoders, grating rulers, pressure gauges, etc. Among them, the real-time status information includes the steel plate position, feed mechanism position, mold position, and flat roller position of the straight seam welded pipe forming machine. The drive component 11 includes contactors, relays, frequency converters, proportional solenoid valves, etc. The drive component 11 is used to respond to the control information of the main controller 1 or the auxiliary controller 4 to perform corresponding actions. Among them, the main controller 1 is the MX-4 multi-axis controller of Rexroth, and the auxiliary controller 4 is the S7-1500 series PLC.

[0046] Optionally, the transfer connection device 3 includes a plurality of interface modules, specifically, see Figure 2As shown, the transfer connection device 3 includes seven interface modules, each of which is provided with eight interfaces, wherein A12-X11A is connected to the bus interface, A12-X11D controls the flow and pressure of the 1# to 3# pumps of the straight seam welded pipe forming machine, A12.1-X11B controls the flow and pressure of the 4# pump of the straight seam welded pipe forming machine, A12.1-X11D controls the flow and pressure of the 5# pump of the straight seam welded pipe forming machine, A13-X12B and X12 control the 1# hydraulic cylinder of the upper beam of the straight seam welded pipe forming machine, and A13-X11B and X13 control the 2# hydraulic cylinder of the upper beam of the straight seam welded pipe forming machine. Cylinder, A13-X11D, X14 control the 3# hydraulic cylinder of the upper beam of the straight seam welded pipe forming machine, A13-X11D, X15 control the 4# hydraulic cylinder of the upper beam of the straight seam welded pipe forming machine, A13.1-X11B, X112 control the 5# hydraulic cylinder of the upper beam of the straight seam welded pipe forming machine, A13.1-X11B, X13 control the 6# hydraulic cylinder of the upper beam of the straight seam welded pipe forming machine, A13.1-X14 control the 1# feedback encoder of the lower beam of the straight seam welded pipe forming machine, A13.1-X15 control the 2# feedback encoder of the lower beam of the straight seam welded pipe forming machine, A14-X11B, A1 4-X12 controls the 1# hydraulic cylinder of the lower beam of the straight seam welded pipe forming machine, A14-X11B and A14-X13 control the 2# hydraulic cylinder of the lower beam of the straight seam welded pipe forming machine, A14-X11D and A14-X14 control the 3# hydraulic cylinder of the lower beam of the straight seam welded pipe forming machine, A14-X11D and A14-X15 control the 4# hydraulic cylinder of the lower beam of the straight seam welded pipe forming machine, A15-X11B and A15-X12 control the entrance push plate trolley of the straight seam welded pipe forming machine, A15-X11B and A15-X13 control the entrance tilting stand angle of the straight seam welded pipe forming machine, A15- X11D and A15-X14 control the outlet push plate trolley of the straight seam welded pipe forming machine, A15-X11D and A15-X15 control the outlet tilting platform angle of the straight seam welded pipe forming machine, A15.1-X11B and A15.1-X12 control the tube push trolley of the straight seam welded pipe forming machine, A15.1-X11B and A15.1-X13 control the entrance roller table of the straight seam welded pipe forming machine, A15.1-X11D and A15.1-X14 control the small mold handle tube push trolley of the straight seam welded pipe forming machine, and A15.1-X11D and A15.1-X15 serve as spare interfaces.

[0047] The control system of the straight seam welded pipe forming machine in the embodiment of the utility model is provided with a transfer connection device and an auxiliary controller on the basis of the original main controller and the cable connector. The transfer connection device is detachably connected to the cable connector. When the main controller is undergoing fault repair or upgrade maintenance, the cable connector is connected to the transfer connection device. At this time, the auxiliary controller is switched to obtain the real-time status information of the production line and issue the corresponding control information, so that the straight seam welded pipe forming machine has a certain redundant control function and improves the ability to resist fault risks.

[0048] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the control system of the straight seam welded pipe forming machine also includes: an input and output I / O module 5, and the input and output I / O module 5 is connected to the transfer connection device 3 and the auxiliary controller 4. The input and output I / O module 5 is used to realize remote data collection and control, and the functions of the input and output I / O module 5 include: data buffering, error or state detection, control and timing, data format conversion, interrupt management, timing control, programmability and electrical characteristics matching, etc.

[0049] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the control system of the straight seam welded pipe forming machine also includes: a secondary controller 6, the secondary controller 6 is connected to the main controller 1, and the secondary controller 6 can cooperate with the main controller 1 to make the function of the straight seam welded pipe forming machine more perfect. For example, the secondary controller 6 can control the opening or closing of the pump, and the main controller 1 can control the flow and pressure of the pump, and the division of labor is more refined. Optionally, the secondary controller 6 is a Siemens S7-300 / S7-400 series PLC.

[0050] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the control system of the straight seam welded pipe forming machine also includes: a DP / DP coupler 7, and the DP / DP coupler 7 is connected to the secondary controller 6 and the auxiliary controller 4. The function of the DP / DP coupler 7 is to connect the two controllers and enable data transmission between the two controllers, playing a role in data exchange. The DP / DP coupler 7 ensures that the amount of data written and read corresponds one to one. In addition, the DP / DP coupler 7 provides electrical isolation between the two controllers. Through the DP / DP coupler 7, the auxiliary controller 4 can replace the main controller 1 and coordinate with the secondary controller 6.

[0051] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, the control system of the straight seam welded pipe forming machine also includes: a switch 8 and an HMI human-machine interface 9, the switch 8 is connected to the auxiliary controller 4, and the HMI human-machine interface 9 is connected to the switch 8. The software of the auxiliary controller 4 can be edited through the HMI human-machine interface 9 and the switch 8, so that the auxiliary controller 4 can realize control functions similar to those of the main controller 1.

[0052] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0053] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A control system for a straight seam welded pipe forming machine, characterized in that: include: A main controller (1), a cable connector (2), a transfer connection device (3) and an auxiliary controller (4); The cable connector (2) is detachably connected to the main controller (1) or the transfer connection device (3), and the transfer connection device (3) is connected to the auxiliary controller (4); When the main controller (1) is to be repaired or upgraded, the cable connector (2) is disconnected from the main controller (1) and the cable connector (2) is connected to the transfer connection device (3).

2. The control system of the straight seam welded pipe forming machine according to claim 1, characterized in that: Also includes: An input / output I / O module (5), wherein the input / output I / O module (5) is connected to the transfer connection device (3) and the auxiliary controller (4).

3. The control system of the straight seam welded pipe forming machine according to claim 1, characterized in that: Also includes: A secondary controller (6), wherein the secondary controller (6) is connected to the primary controller (1).

4. The control system of the straight seam welded pipe forming machine according to claim 3 is characterized in that: Also includes: A DP / DP coupler (7) is connected to the secondary controller and the auxiliary controller (4).

5. The control system of the straight seam welded pipe forming machine according to claim 3 is characterized in that: The secondary controller (6) is a Siemens S7-300 / S7-400 series PLC.

6. The control system of the straight seam welded pipe forming machine according to claim 1, characterized in that: The auxiliary controller (4) is a S7-1500 series PLC.

7. The control system of the straight seam welded pipe forming machine according to claim 6, characterized in that: Also includes: A switch (8), the switch (8) being connected to the auxiliary controller (4); An HMI human-machine interface (9), wherein the HMI human-machine interface (9) is connected to the switch (8).

8. The control system of the straight seam welded pipe forming machine according to claim 1, characterized in that: Also includes: An information collection component (10), wherein the information collection component (10) is connected to the cable connector (2).

9. The control system of the straight seam welded pipe forming machine according to claim 1, characterized in that: Also includes: A drive component (11), wherein the drive component (11) is connected to the cable connector (2).

10. The control system of the straight seam welded pipe forming machine according to claim 1, characterized in that: The transit connection device (3) comprises a plurality of interface modules (301).

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