Torque and angle logic control methods and control systems, rolling connection equipment, storage media and electronic devices

Abstract

This invention provides a torque angle logic control method and control system, a rolling connection device, a storage medium, and an electronic device. The method includes: employing an independent angle control method, setting a target angle for the motor spindle during the rolling process, acquiring the real-time angle of the motor spindle during the rolling process, and controlling the operation of the motor spindle of the rolling connection device based on the real-time angle and the target angle; when the real-time angle reaches the set target angle during the rolling process, the motor spindle of the rolling connection device automatically reverses and exits. This invention effectively ensures the stability and consistency requirements of the product and meets the expected service life of the product.

Description

Technical Field

[0001] This invention relates to the field of aviation pipeline duct rolling connection technology, and more particularly to a torque angle logic control method and control system, rolling connection equipment, storage medium and electronic device. Background Technology

[0002] In the aviation industry, non-flared pipe connection technology is now widely adopted in piping systems. This technology can withstand higher pressures, has better sealing performance, and a longer service life, representing a qualitative leap forward for aviation piping. However, this also places higher demands on the key processes of roll forming connections, requiring better assurance of important parameters such as dimensional consistency and roundness of the rolled products. The stability and specialized control logic of the key roll forming equipment play a decisive role in controlling these crucial parameters.

[0003] like Figure 2 The diagram shows a simplified structure of the rolling connection equipment. The rolling connection equipment mainly consists of an angle sensor, a servo motor, a torque sensor, a mandrel, tooling, rollers, and other mechanical components. This process primarily utilizes the OC stage shown in the stress-strain curve diagram of metallic materials. During this process, stress and strain exhibit an increasing functional relationship, and the rolling torque gradually increases with rolling.

[0004] Currently, there are many types of traditional roller rolling equipment, structurally divided into manual and automatic, and from both domestic and imported brands. However, their software control logic algorithms are basically the same, all controlling the final product size solely through torque during the rolling process. But with the application of large-diameter and ultra-high-pressure conduits, the aforementioned torque-based control algorithm is proving inadequate, and the results are not ideal. Instable size control can occur, and even over-rolling of the conduit can happen, leading to damage to the product, tooling, and equipment in extreme cases. The reasons are as follows:

[0005] 1. The physical quantity of torque has poor resistance to environmental interference. Factors such as temperature, humidity, vibration, and noise in the environment in which the equipment is located can affect the accuracy of torque data acquisition.

[0006] 2. Torque signals experience certain time delays and fluctuations during acquisition, feedback, and execution.

[0007] 3. The damping of the equipment's mechanical components and tooling can also affect the accuracy of the torque value.

[0008] 4. With increased wall thickness in ultra-high pressure conduits, the strength of the conduit is significantly enhanced. During actual rolling, localized yielding deformation may occur, potentially entering stage CD as shown in the stress-strain curve diagram of metallic materials. In this stage, stress and strain exhibit a decreasing function relationship. As rolling progresses, pressure and torque do not increase; in fact, torque may even decrease to some extent. The torque may never reach the target torque, resulting in continuous rolling. This leads to excessively large rolling dimensions and even the risk of damaging tooling and equipment.

[0009] Torque fluctuations directly affect the dimensional stability of rolled products and their service life. Therefore, exploring solutions to these key issues is crucial for the mass application of high-pressure non-flaring pipe connection technology. Summary of the Invention

[0010] To address the aforementioned technical problems, a torque-angle logic control method and control system, a rolling connection device, a storage medium, and an electronic device are provided, overcoming the shortcomings of existing technologies that rely solely on a single torque control algorithm.

[0011] The technical means employed in this invention are as follows:

[0012] A torque angle logic control method, comprising:

[0013] An independent rotation angle control method is adopted. The target rotation angle of the motor spindle is set during the rolling process, and the real-time rotation angle of the motor spindle during the rolling process is collected. The motor spindle of the rolling connection device is controlled according to the real-time rotation angle and the target rotation angle. When the real-time rotation angle reaches the set target rotation angle during the rolling process, the motor spindle of the rolling connection device automatically reverses and exits.

[0014] A torque angle logic control method, comprising:

[0015] A dual control method combining torque and rotation angle is adopted. The target torque and target rotation angle of the motor spindle are set during the rolling process. When the real-time rotation angle of the motor spindle is collected during the rolling process, the real-time torque of the motor spindle is also collected. The motor spindle of the rolling connection device is controlled according to the real-time torque, the real-time rotation angle, the target torque, and the target rotation angle.

[0016] Furthermore, in the dual control mode of torque and rotation angle, when either the real-time torque or the real-time rotation angle reaches the set target value during the rolling process, the motor spindle of the rolling connection equipment automatically reverses and exits.

[0017] The present invention also provides a torque angle logic control system for implementing a torque angle logic control method, comprising:

[0018] The first control module, in the independent rotation angle control mode, is used to set the target rotation angle of the motor spindle during the rolling process, collect the real-time rotation angle of the motor spindle during the rolling process, and control the motor spindle of the rolling connection device to move according to the real-time rotation angle and the target rotation angle; when the real-time rotation angle reaches the set target rotation angle during the rolling process, the motor spindle of the rolling connection device automatically reverses and exits.

[0019] The present invention also provides a torque angle logic control system for implementing a torque angle logic control method, comprising:

[0020] The second control module is used to set the target torque and target rotation angle of the motor spindle during the rolling process in the dual combination control mode of torque and rotation angle. At the same time, it collects the real-time torque and real-time rotation angle of the motor spindle during the rolling process, and controls the motor spindle of the rolling connection device to move according to the real-time torque, the real-time rotation angle, the target torque and the target rotation angle.

[0021] Furthermore, it also includes a host computer and an alarm, both of which are connected to the control module.

[0022] The present invention also provides a rolling connection device having the above-mentioned torque and angle logic control system. The rolling connection device includes at least: a torque sensor, an angle sensor and a servo motor. The torque sensor and the angle sensor are respectively connected to the output end and the non-output end of the servo motor. The real-time torque is acquired by the torque sensor and the real-time angle is acquired by the angle sensor.

[0023] Furthermore, the torque is generated by the load end of the mandrel of the rolling connection device; the rotation angle is obtained by the cumulative rotation angle of the servo motor spindle of the rolling connection device.

[0024] The present invention also provides a storage medium comprising a stored program, wherein, when the program is executed, the above-described torque angle logic control method is performed.

[0025] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the above-described torque angle logic control method through the computer program.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. This invention accurately controls the axial displacement of the mandrel by adding rotation angle control, and at the same time controls the radial displacement of the roller, thereby directly and accurately controlling the rolling dimensions of the product and improving the product performance.

[0028] 2. This invention, through a combined torque and angle control mode, effectively prevents over-rolling issues caused by abnormal torque signals. Similarly, it also prevents over-rolling issues caused by abnormal angle signals. If both torque and angle signals are abnormal simultaneously, the equipment will report an error and stop to prevent the production of defective products. It provides excellent error prevention against over-rolling.

[0029] 3. The equipment software of this invention adopts a flexible model, allowing different program formula combinations to be programmed and stored within the software for easy retrieval of the corresponding formula program during subsequent use. This shortens product changeover time and enables traceability of product process rolling parameters.

[0030] 4. By adding angle control, this invention is equivalent to adding a digital signal control on the basis of the original torque signal (analog signal), which is almost unaffected by environmental sensitivity (vibration, temperature, humidity, noise, etc.).

[0031] 5. By adding rotation angle control, the absolute displacement of the mandrel is controlled. The mechanical damping of the system tooling and other components will not have any impact on the rolling dimensions, thus greatly improving the rolling accuracy.

[0032] Based on the above reasons, this invention can be widely applied in fields such as rolling. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a simplified stress-strain curve for metallic materials.

[0035] Figure 2 This is a simplified structural diagram of a rolling connection device.

[0036] Figure 3 This is a block diagram of the software control logic for traditional roll forming equipment.

[0037] Figure 4 This is a block diagram of the software control logic for the rolling connection device of the present invention.

[0038] In the diagram: 1. Angle sensor; 2. Servo motor; 3. Torque sensor; 4. Mandrel; 5. Tooling; 6. Roller; 7. Conduit assembly. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0043] To address the problems of existing technologies and meet the requirements of rolling processes for large-specification and high-pressure conduits, ensuring better consistency in rolled dimensions and roundness, and meeting product performance and fatigue life requirements, thereby facilitating the rapid mass application of high-pressure non-flaring pipe connection technology, this invention, through continuous research and development of key rolling connection equipment, has explored a new solution that breaks through the traditional algorithm based solely on torque control. This solution effectively guarantees product stability and consistency, meeting the expected product lifespan.

[0044] The purpose of this invention is to overcome the shortcomings of existing technologies that rely solely on torque control algorithms, and to provide a torque-angle logic control method, namely a multi-dimensional logic control algorithm with stronger anti-interference capabilities. This relates to a logic control algorithm for a key device in the rolling connection of aviation conduits. This algorithm, based on traditional torque-only control, also incorporates angle control and other methods. For conduits of different specifications or pressure ratings, a reasonable and corresponding logic control algorithm formula can be selected and matched in the host computer software to meet the process parameter control requirements of rolling, thereby optimizing the dimensional consistency of the output rolled pipe products and ensuring that the rolling connection process meets the various test performance requirements of the product.

[0045] The present invention provides a torque angle logic control method, comprising:

[0046] An independent rotation angle control method is adopted. A target rotation angle for the motor spindle is set during the rolling process, and the real-time rotation angle of the motor spindle during rolling is collected. The movement of the motor spindle of the rolling connection device is controlled based on the real-time rotation angle and the target rotation angle. When the real-time rotation angle reaches the set target rotation angle during rolling, the motor spindle of the rolling connection device automatically reverses and exits. The movement of the motor spindle of the rolling connection device is controlled by software. During the rolling process, the real-time torque gradually increases, and the PLC continuously collects the real-time torque. When the real-time torque equals the target torque, the software controls the motor spindle to stop rotating via the PLC. After a certain delay, the software controls the motor spindle to reverse and exit (wherein the PLC controls the motor connected to the spindle, thereby controlling the spindle movement).

[0047] The present invention also provides a torque angle logic control method, comprising:

[0048] A dual control method combining torque and rotation angle is employed. Target torque and target rotation angle of the motor spindle are set during the rolling process. While acquiring the real-time rotation angle of the motor spindle during rolling, the real-time torque of the motor spindle is also acquired. The motor spindle movement of the rolling connection equipment is controlled based on the real-time torque, the real-time rotation angle, the target torque, and the target rotation angle. Theoretically, the inner diameter of the product after rolling corresponds to a unique target rotation angle and target torque, and all three should be achieved simultaneously. However, due to interference from environmental factors such as temperature, there are certain deviations. The deviation between the target rotation angle and the rolled inner diameter is relatively small, while the deviation between the target torque and the inner diameter of the product after rolling is relatively large.

[0049] The present invention can also adopt an independent torque control method, which sets the target torque of the motor spindle during the rolling process, collects the real-time torque of the motor spindle during the rolling process, and controls the motor spindle of the rolling connection device to move according to the real-time torque and the target torque.

[0050] Preferably, in the dual combination control method of torque and rotation angle, when either the real-time torque or the real-time rotation angle reaches the set target value during the rolling process, the motor spindle of the rolling connection equipment automatically reverses and exits, completing the rolling connection process and accurately controlling the product rolling size (the inner diameter of the guide tube after rolling is controlled within the range required by the process, and the process capability CPK reaches 1.67, which is at the leading level in the industry).

[0051] In the independent torque control mode, when the real-time torque reaches the set target torque during the rolling process, the motor spindle of the rolling connection equipment automatically reverses and exits.

[0052] It should be noted that the torque and angle logic control method of this invention is applied to aviation pipeline rolling connection equipment. This method includes control methods for torque and angle, and different control algorithm formulas can be set in the software. That is:

[0053] The software allows for independent control of the rotation angle. When the real-time rotation angle of the rolling mill reaches the angle set in the software, the motor spindle of the rolling mill connection device automatically reverses and exits.

[0054] Alternatively, a dual control mode combining torque and rotation angle can be set. Once the rolling parameters reach the formula program parameters set in the software, the rolling connection process is completed. This dual control of torque and rotation angle allows for precise control of the product's rolling dimensions.

[0055] It is also possible to set an independent torque control mode. This mode is similar to the traditional simple torque control. When the real-time rolling torque reaches the torque set by the software, the motor spindle of the rolling connection equipment will automatically reverse and exit.

[0056] Specifically, the software allows for independent angle control modes. These modes can be set to a combination of torque and angle control, or a standalone torque control mode. In the angle control mode, rolling is complete when the set target angle value is reached. In the torque and angle combination control mode, target values ​​for both torque and angle can be set simultaneously. Rolling is complete when either torque or angle reaches the target value. The torque control mode is the same as the traditional method: rolling is complete when the set target torque value is reached.

[0057] The target rotation angle and target torque of this invention are calculated based on the process dimensional requirements after the guide tube is rolled and the mandrel cone angle of the tooling. During the first production run, the target rotation angle and target torque are finely adjusted according to the actual process dimensions after the guide tube is rolled.

[0058] The target rotation angle and target torque for each specification of catheter are shown in Table 1.

[0059] Table 1 Parameter Table

[0060]

[0061]

[0062] The present invention also provides a torque angle logic control system for implementing a torque angle logic control method, comprising:

[0063] The first control module, in the independent rotation angle control mode, is used to set the target rotation angle of the motor spindle during the rolling process, collect the real-time rotation angle of the motor spindle during the rolling process, and control the motor spindle of the rolling connection device to move according to the real-time rotation angle and the target rotation angle; when the real-time rotation angle reaches the set target rotation angle during the rolling process, the motor spindle of the rolling connection device automatically reverses and exits.

[0064] The present invention also provides a torque-angle logic control system for implementing a torque-angle logic control method, comprising: a second control module, used in a dual combination control mode of torque and angle to set the target torque and target angle of the motor spindle during the rolling process, and simultaneously collecting the real-time torque and real-time angle of the motor spindle during the rolling process, and controlling the motor spindle of the rolling connection device to move according to the real-time torque, the real-time angle, the target torque and the target angle;

[0065] The third control module, in the torque independent control mode, is used to set the real-time torque of the motor spindle during the rolling process, collect the real-time torque of the motor spindle during the rolling process, and control the motor spindle of the rolling connection device to move according to the real-time torque.

[0066] Preferred options also include:

[0067] The host computer is equipped with different control algorithms, and the first control module, the second control module and the third control module all interact with the host computer for control.

[0068] The alarm is connected to the control module and has an anomaly detection and alarm notification function.

[0069] In a preferred embodiment of the present invention, a programmable logic controller (PLC) is used to implement the functions of the first control module, the second control module, and the third control module. Specifically, the PLC in this application has a data acquisition port and a control port. The data acquisition port is used to connect to an angle sensor and a torque sensor to collect real-time angle and torque data of the motor spindle during the rolling process, respectively. By comparing the real-time angle and torque data with preset target data, the PLC generates a control signal for controlling the motor's operation. The control signal is sent from the control port to the motor of the rolling connection device, controlling the motor spindle of the rolling connection device to automatically reverse and exit.

[0070] In a preferred embodiment of the present invention, the first control module, the second control module and the third control module may be PLC controllers of FC4A-16R2.

[0071] It should be noted that in the torque control mode, the torque value is acquired by the torque sensor of the rolling connection equipment and transmitted to the PLC, which then interacts with the host computer software for control. In the angle control mode, the angle value is acquired by the angle sensor of the rolling connection equipment and transmitted to the PLC, which then interacts with the host computer software for control.

[0072] This invention also provides a rolling connection device with the aforementioned torque and angle logic control system. The rolling connection device includes at least a torque sensor, an angle sensor, and a servo motor. The torque sensor and the angle sensor are respectively connected to the output end and the non-output end of the servo motor. Real-time torque is acquired by the torque sensor, and real-time angle is acquired by the angle sensor. Both the angle sensor and the torque sensor use existing sensors. The angle sensor is an electromagnetic sensor. When installed on the non-output end of the servo motor, the angle sensor is non-contact with the spindle end located inside the servo motor, acquiring the spindle angle of the servo motor through electromagnetic induction. Installing the angle sensor on the non-output end of the servo motor results in low noise, low vibration, and high detection accuracy. If the angle sensor were installed on the output end spindle of the servo motor, a mechanical sensor would be used. However, the vibration generated at the output end spindle would be significant, causing wear on the sensor and affecting its detection accuracy. Furthermore, due to the limited space at the output end spindle of the servo motor in this invention's rolling connection device, it is inconvenient to simultaneously install both the angle sensor and the torque sensor. Therefore, this invention installs the angle sensor on the non-output end of the servo motor.

[0073] It should be noted that the rolling connection equipment of the present invention is a rolling connection equipment based on a logic control method of torque and angle combined control. The equipment's motor spindle adopts a standard module, which internally includes hardware support such as a torque sensor, angle sensor, servo motor, reducer, and mechanical connection components. The software control part of the equipment adopts a dual control method using torque and angle signals, combined with appropriate speed control to optimize rolling efficiency.

[0074] Preferably, the torque is mainly generated by the load end of the mandrel of the rolling connection equipment, that is, the mandrel, roller and guide tube inner hole expand; the rotation angle is obtained by the cumulative rotation angle of the motor spindle of the rolling connection equipment (the number of rotations of the motor spindle).

[0075] The present invention also provides a storage medium comprising a stored program, wherein, when the program is executed, the above-described torque angle logic control method is performed.

[0076] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the above-described torque angle logic control method through the computer program.

[0077] Example 1

[0078] See attached Figure 2 Simplified structural diagram and appendix of the rolling connection equipment Figure 3 The traditional software control logic block diagram of the rolling connection equipment, and the traditional rolling control process are as follows:

[0079] The product conduit assembly 7 is mounted on fixture 5 and clamped securely by the fixture clamping plate. The main shaft of servo motor 2 is connected to the spindle 4 in fixture 5 (the side of the main shaft connected to the spindle 4 on servo motor 2 is the output end of servo motor 2, and the side of servo motor 2 away from the spindle 4 is the non-output end). After activating the start button on the touch screen, the motor main shaft begins to rotate forward. The motor speed can be set in the software (10-300 rpm). Gently push the motor to the right manually to allow the spindle 4 to enter the conduit. The spindle 4, rollers 6, and the inner diameter of the conduit are tightly bound together, forming a planetary reduction mechanism. As the spindle 4 moves axially, the presence of the cone angle of the spindle 4 causes the rollers 6 to move radially outward. The three rollers 6 cause the conduit to gradually expand and deform, and the inner diameter of the conduit gradually increases. At the same time, due to the presence of a certain tilt angle along the axial direction of the rollers 6, a certain self-suction force is generated during rotation, and the spindle 4 gradually advances to the right with the self-suction force. (See appendix for details on the deformation of the conduit.) Figure 1 A schematic diagram of the stress-strain curve of the metallic material shows that the stress between roller 6 and the guide tube sidewall gradually increases in the OC stage, causing the load torque of mandrel 4 to continuously increase. Simultaneously, the torque signal is fed back to the torque sensor. When the torque sensor 3 detects that the torque value of the motor spindle equals the set target torque value, the motor spindle stops rotating after a 250ms delay. After another 250ms delay, the motor spindle begins to rotate in the reverse direction (the reverse rotation speed can be set in the software). When the reverse rotation time accumulates to the target set time, it stops rotating. At this point, the mandrel 4, roller 6, and guide tube inner wall are in a relaxed state. The mandrel 4 can then be manually moved and removed, completing the product rolling connection process. However, this process has two main problems:

[0080] 1. The rolling process is valid only if it occurs in the OC stage of the stress-strain curve of the metallic material. This stage is an increasing function, meaning the torque increases continuously with rolling. However, with the application of ultra-high pressure pipelines, the actual rolling stage may exceed point C and occur in the CD stage. In this case, the stress (torque) decreases with rolling, potentially failing to reach the target torque, resulting in over-rolling. In severe cases, this can damage products, tooling, or equipment. Therefore, torque alone is no longer suitable for rolling connection technology under these conditions.

[0081] 2. The initial design intent of torque sensor 3 was to collect the real-time torque (torque at the mandrel, rollers, and inner wall of the conduit) in the product's rolling area. However, the torque value collected by the sensor actually includes the damping torque of mechanical components such as mandrel 4, tooling 5, and rollers 6, and does not represent the true rolling torque in the product's rolling area. Assuming the value collected by torque sensor 3 is T, the real-time torque in the product's rolling area is T1, and the damping torque of mechanical components such as mandrel 4, tooling 5, and rollers 6 is T2, then T = T1 + T2. Currently, it is assumed that T2 is sufficiently small to be negligible, or that T2 is a stable fixed value, and controlling T1 through T is not a problem. However, with the application of ultra-high pressure pipelines, the value of T2 becomes very large and cannot be ignored, and it is not necessarily a stable fixed value. Therefore, controlling T1 through T becomes inadequate, resulting in highly unstable dimensions of the rolled product.

[0082] See attached Figure 4 This is a block diagram of the software control logic for the rolling connection device of the present invention.

[0083] This invention incorporates a rotation angle control function, allowing simultaneous setting of target torque and target rotation angle in the software. An angle sensor 1 is installed in the rolling connection device to collect the real-time rotation angle of the motor spindle during the rolling process. Rolling can be controlled using torque and / or rotation angle control modes. In the OC stage, as rolling progresses, both the real-time torque and real-time rotation angle of the motor spindle gradually increase. Rolling is completed when either the real-time torque or real-time rotation angle meets the target setting condition. In the CD stage, as rolling progresses, the real-time torque increases slowly or even decreases, consistently failing to meet the target torque requirement. However, the real-time rotation angle continues to gradually increase, and rolling is still completed when the real-time rotation angle meets the target rotation angle condition. Furthermore, the rotation angle is a digital signal, ensuring stable acquisition and control, minimal impact from environmental vibrations, noise, temperature, etc., and unaffected by the system's damping torque.

[0084] An anomaly detection and alarm function has been added to the software. In this embodiment, an alarm connected to the PLC controller is installed. Typically, when the product reaches the moment of completion of rolling, the torque sensor and the rotation angle sensor will respectively collect and output the completed real-time torque and real-time rotation angle. Let the real-time torque and real-time rotation angle be K1 and K2, respectively. The collected K1 and K2 data are automatically stored in the PLC controller, and the product's process rolling parameters can be retrieved or traced at any time. Assume the difference between the real-time torque K1 and the real-time rotation angle K2 is K, i.e., K = K1 - K2. Normally, K will be within a stable range. A reasonable target deviation range Ka is set in the PLC controller. When K exceeds Ka, the PLC controller will automatically output an alarm signal to the host computer and the alarm. The host computer receives and displays the alarm signal, and the alarm receives the alarm signal and emits an audible alarm, indicating that there may be an anomaly in the equipment, tooling, or product. This facilitates the operator to check typical parts of the equipment, tooling, or product to eliminate the anomaly. Common typical parts include excessive wear of the mandrel, excessive wear or breakage of the rollers, etc. This warning serves as a preventative measure to prevent the production of substandard products.

[0085] In summary, this invention incorporates a combination condition judgment module for angle and torque in the software. When the rolling connection operation is performed, it performs an operation that meets the combination condition requirements. The angle sensor 1 and torque sensor 3 automatically identify the rolling intention and trigger the completion program to start. The current angle value of the angle sensor 1 and the torque value of the torque sensor 3 are sampled, judged, and stored, thereby realizing the conduit rolling connection operation.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rolling connection device, comprising a torque angle logic control system, wherein the torque angle logic control system is used to implement a torque angle logic control method; The rolling connection equipment includes: Angle sensor and servo motor, wherein the angle sensor is connected to the non-output terminal of the servo motor, and the real-time rotation angle is acquired by the angle sensor, which is an electromagnetic sensor; The rolling connection device also includes a torque sensor, which is connected to the output end of the servo motor, and the real-time torque is acquired by the torque sensor; The torque angle logic control system includes a host computer and an alarm, both of which are connected to the control module. The torque angle logic control method includes: An independent rotation angle control method is adopted. The target rotation angle of the motor spindle is set during the rolling process, and the real-time rotation angle of the motor spindle during the rolling process is collected. The motor spindle of the rolling connection device is controlled according to the real-time rotation angle and the target rotation angle. When the real-time rotation angle reaches the set target angle during the rolling process, the motor spindle of the rolling connection device automatically reverses and exits. It employs a dual control method combining torque and steering angle, including: The target torque and target rotation angle of the motor spindle are set during the rolling process. When the real-time rotation angle of the motor spindle is collected during the rolling process, the real-time torque of the motor spindle is also collected. The motor spindle of the rolling connection device is controlled to move according to the real-time torque, the real-time rotation angle, the target torque, and the target rotation angle. When either the real-time torque or the real-time rotation angle reaches the set target value during the rolling process, the motor spindle of the rolling connection device automatically reverses and exits. It also includes setting real-time torque and real-time rotation angle as K1 and K2 respectively. The collected K1 and K2 data are automatically stored in the PLC controller, which can retrieve or trace the process rolling parameters of the product at any time. The difference between real-time torque K1 and real-time rotation angle K2 is K, that is, K=K1-K2. A reasonable target deviation range Ka is set in the PLC controller. When K exceeds Ka, the PLC controller will automatically output an alarm signal to the host computer and the alarm device. The host computer receives the alarm signal and displays it. The alarm device receives the alarm signal and emits an audible alarm, indicating that there may be an abnormality in the equipment, tooling or product. This facilitates the operator to check typical parts of the equipment, tooling or product and eliminate the abnormality.

2. The rolling connection device according to claim 1, characterized in that, The torque is generated by the load end of the mandrel of the rolling connection device, and the rotation angle is obtained by the cumulative rotation angle of the servo motor spindle of the rolling connection device.

3. A torque-angle logic control system, employing the rolling connection device as described in claim 1, for implementing a torque-angle logic control method, characterized in that, include: The first control module, in the independent rotation angle control mode, is used to set the target rotation angle of the motor spindle during the rolling process, collect the real-time rotation angle of the motor spindle during the rolling process, and control the motor spindle of the rolling connection device to move according to the real-time rotation angle and the target rotation angle; when the real-time rotation angle reaches the set target rotation angle during the rolling process, the motor spindle of the rolling connection device automatically reverses and exits.

4. A torque-angle logic control system, employing the rolling connection device as described in claim 1, for implementing a torque-angle logic control method, characterized in that, include: The second control module is used to set the target torque and target rotation angle of the motor spindle during the rolling process in the dual combination control mode of torque and rotation angle. At the same time, it collects the real-time torque and real-time rotation angle of the motor spindle during the rolling process, and controls the motor spindle of the rolling connection device to move according to the real-time torque, the real-time rotation angle, the target torque and the target rotation angle.

Images