CN-121985528-A - Parameter cooperative control system in production of high-speed rail global communication equipment

CN121985528ACN 121985528 ACN121985528 ACN 121985528ACN-121985528-A

Abstract

The invention relates to the technical field of power electronics and discloses a parameter cooperative control system in the production of high-speed rail global communication equipment, which comprises a controlled load characteristic extraction module, an energy flow distribution scheduling module and a transmission path dynamic compensation module, wherein the controlled load characteristic extraction module is used for collecting reverse tensile resistance data generated by a load access execution unit in an energy coupling stage and calculating an interface energy activity index, the energy flow distribution scheduling module is used for correcting a preheating parameter and an energy field vector angle of a thermal energy power output mechanism according to the index, and the transmission path dynamic compensation module is used for extracting physical sinking displacement of a carrier to be processed according to an actual measured backpressure value and driving the power output mechanism to adjust in a follow-up manner.

Inventors

XIA MIN
LUO YERONG
ZHU JIAHAO
LIU FANGLING
KUANG FENG
LIU DAN

Assignees

湖南澳德信息科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (10)

1. A parameter cooperative control system in the production of high-speed rail global communication equipment, which is characterized in that the system comprises: The controlled load characteristic extraction module is connected with the load access execution unit and is used for collecting reverse stretching resistance data generated by the load access execution unit at the moment of lifting and separating when the load access execution unit is coupled with the target energy interface to execute load energy, and calculating an interface energy activity index based on the power consumption area of the reverse stretching resistance data changing along with displacement; The energy flow distribution scheduling module is in communication connection with the controlled load characteristic extraction module and the thermal energy power output mechanism and is used for correcting a preheating power set value, a preheating duration and an energy field vector angle output by the thermal energy power output mechanism according to the interface energy activity index so as to realize energy distribution aiming at different physical heat capacity areas in the controlled load; The transmission path dynamic compensation module is arranged in an energy transmission loop of the thermal energy power output mechanism and is used for acquiring an actual measurement back pressure value generated by the action of the energy carrying medium on the surface of the carrier to be processed through the pressure sampling unit, comparing the actual measurement back pressure value with a preset nominal back pressure so as to extract physical sinking displacement generated by the impact of the energy carrying medium on the carrier to be processed, driving the output end of the thermal energy power output mechanism to carry out synchronous displacement compensation along with the physical sinking displacement, and maintaining a welding gap between the output end and the surface of the carrier to be processed within a preset fluctuation range.
2. The parameter cooperative control system in the production of the high-speed rail universe communication equipment is characterized by further comprising a vacuum feedback monitoring unit for collecting vacuum pressure fluctuation parameters of the load access execution unit, a microcontact identification unit connected with the vacuum feedback monitoring unit and used for determining microcontact areas between load pins and an energy coupling interface by matching the vacuum pressure fluctuation parameters with a preset fluctuation template, and an energy flow distribution scheduling module is further used for adjusting the duty ratio of heat energy pulses output by the heat energy power output mechanism according to the microcontact areas so as to maintain the constant heat flow density at the welding interface.
3. The system of claim 1, wherein the controlled load characteristic extraction module is configured to extract an interfacial energy compensation factor that characterizes thixotropic properties of the energy coupled interface by performing an integral operation on an envelope area of the force field of the reverse stretch resistance data in a time dimension.
4. The system according to claim 1, wherein the transmission path dynamic compensation module stores an equivalent mechanical impedance coefficient of a carrier to be processed in the transmission path dynamic compensation module, and the transmission path dynamic compensation module is configured to perform nonlinear mapping on the amplitude deviation of the measured backpressure value according to the equivalent mechanical impedance coefficient, so as to determine an axial compensation amount of the actuator of the thermal energy power output mechanism.
5. The system of claim 1, wherein the energy flow distribution scheduling module is based on an interface energy activity index Calculating power compensation gain Power compensation gain The following formula is satisfied: , wherein, Is a preset energy conversion sensitivity coefficient, Is a preset standard activity threshold value, and the method comprises the following steps of, The interface energy activity index is obtained through integration of the area of the force field in the lifting process of the load access execution unit.
6. The system of claim 1, wherein the thermal power output mechanism comprises a plurality of groups of independently controlled power adjustment units, and the energy flow distribution scheduling module is used for controlling the start time sequence of the plurality of groups of independently controlled power adjustment units, so as to form an asymmetric thermal field with a preset temperature gradient on the surface of the carrier to be processed.
7. The system according to claim 1, further comprising an in-situ detection unit for calculating physical stiffness data of a local area of the carrier to be processed according to a mechanical compression displacement of the load access execution unit when the mounting operation is performed, and inputting the physical stiffness data into a closed-loop regulation loop of the thermal power output mechanism.
8. The system for collaborative control of parameters in production of a high-speed rail global communication apparatus according to claim 1, wherein the transmission path dynamic compensation module is configured to reject random turbulence noise in an energy-carrying medium circulation flow field by performing high-frequency filtering processing on an actually measured back pressure value, so as to identify deterministic physical sinking displacement of a carrier to be processed due to pneumatic load.
9. The cooperative control system for parameters in the production of a high-speed rail global communication device according to claim 1, wherein the thermal power output mechanism is provided with a closed-loop position feedback unit for receiving the displacement correction command output by the transmission path dynamic compensation module and adjusting the axial coordinate of the output end of the thermal power output mechanism.
10. The system of claim 1, wherein the energy flow distribution scheduling module automatically increases the upper limit of the output power of the thermal energy power output mechanism in the preheating stage when detecting that the interface energy activity index is lower than the preset activity threshold, and synchronously deflects the energy field vector angle of the thermal energy power output mechanism toward the pin center line direction of the controlled load.

Description

Parameter cooperative control system in production of high-speed rail global communication equipment Technical Field The invention belongs to the technical field of power electronics, and particularly relates to a parameter cooperative control system in the production of high-speed rail global communication equipment. Background In the prior manufacturing process, an automatic mounting and reflow soldering process is generally adopted, because the communication equipment needs to bear continuous high-frequency vibration generated by the operation speed of more than 450km/h, extremely high quality requirements are required for physical toughness and reliability of solder joint connection in industry, the prior production system usually depends on setting constant mounting pressure parameters and preset soldering temperature curves, the static parameter configuration mode shows limitation when dealing with complex working conditions, physical differences exist between wiring density and via hole distribution in different areas of the printed circuit board in the actual production scene, so that the equivalent physical rigidity of the carrier part is uneven, when an automatic mounting head performs component pressing action with uniform pressure, the high-density wiring area generates nonlinear mechanical impedance, the impedance accumulates in the board, and the severe change of the environmental temperature causes thermal expansion displacement of carrier materials along with the entering a subsequent soldering thermal cycle process of the assembly, and the thermal expansion pre-stress accumulated in the carrier material is superimposed, and the thermal expansion stress is directly induced in real time due to the rapid communication with the aging of the thermal stress, and the fatigue is directly caused by the fatigue failure of the thermal stress accumulated in the carrier material, and the thermal expansion is directly induced in real time, and the fatigue is caused by the failure of the rapid communication. Besides the physical characteristic difference of the carrier, the control logic is insufficient in adjustment precision for unsteady state working conditions, for example, patent with the authority of publication number CN207968362U discloses a generator excitation control device, a control module is arranged to maintain a preset time period to be disconnected after a switch is turned on, excessive adjustment caused by adhesion of a contact is avoided, and when the on-time adjustment thought based on fixed duration or amplitude is applied to the field of high-precision communication equipment manufacturing, subsequent heat energy distribution cannot be dynamically adjusted according to the instantaneous mechanical response of mounting due to lack of physical feedback, so that the requirement of microcosmic consistency of a welding interface is difficult to be met; in order to cope with the failure risk, the common improvement thought in industry is mainly focused on improving the optical detection precision of the rear end or increasing the cooling buffer time after welding, analysis finds that only increasing the detection link can only realize post interception and cannot eliminate the formed physical damage from the source, while prolonging the process time can reduce the production efficiency of a production line and cannot provide accurate compensation for the local physical characteristic difference of a plate, at present, in the field of manufacturing an electrical component, a mismatch contradiction exists between a static design parameter and a dynamic physical response, a system cannot utilize mechanical feedback of a mounting stage to guide the repair and adjustment of a subsequent welding parameter, analysis shows that the prior art mainly has the defects that 1, an effective sensing means for the local mechanical impedance difference of a carrier is lacked, so that the prestress distribution in the mounting process is uncontrollable, 2, a logic fault exists between a mounting process and a welding process, the mechanical characteristic of the front end cannot be converted into a compensation basis of the rear end, 3, the existing flow field control and gap adjustment mechanism cannot offset the local thermal expansion trend of the carrier, it is difficult to ensure microscopic consistency of the solder joint crystals. Therefore, how to utilize the mechanical characteristic feedback generated in the component mounting stage to establish a cross-process mechanical and thermal field correlation model, so as to realize the dynamic hedging and follow-up compensation of local stress deviation in the welding process, and the method and the device become the technical problems to be solved by the invention. Disclosure of Invention In order to solve the problems in the background technology, the technical scheme of the invention is as follows, a parameter cooperative control system in the product