A kind of automatic maintenance assembly equipment and method of fuxing gear box boom

Abstract

The application discloses a kind of automatic overhaul assembly equipment and method of Fuxing gear box boom, equipment includes step feeding conveyor mechanism, fixed on its feeding opening feeding rotary positioning mechanism, installs the boom shaft end detection camera for detecting the diameter and appearance surface of boom shaft end in the upper feeding conveyor mechanism, installs the heat shrink mechanism for heating boom in the heat shrink station of feeding conveyor mechanism, waste gas treatment and cooling mechanism for being used to discharge waste gas and heat generated in heat shrink process and cooling workpiece, automatic handling mechanism of handling boom and accessory, boom accessory storage platform and assembly mechanism are set in the discharge port of feeding conveyor mechanism, discharge conveyor mechanism is set in the side of feeding conveyor mechanism and is used to coordinate and manage the operation of each mechanism unit Overhaul control unit, through the collaborative work of each mechanism unit, complete boom shaft end measurement, heat shrink, assembly process, realize full-automatic flow operation, improve overhaul efficiency and assembly quality.

Description

Technical Field

[0001] This invention belongs to the field of train component maintenance technology, and more specifically, relates to an automatic maintenance and assembly device and method for the gearbox boom of the Fuxing high-speed train. Background Technology

[0002] With the rapid development of China's high-speed rail, the Fuxing bullet train, as a new generation of high-speed train independently developed by my country with complete independent intellectual property rights, directly relates to the safety and property safety of passengers and the efficient and smooth operation of railway transportation. The gearbox boom, as a key component of the bullet train's bogie system, plays a crucial role in connecting the gearbox to the frame and transmitting traction and braking forces. Its working condition directly affects the smoothness, comfort, and safety of the bullet train's operation. Under long-term high-load operation, it is susceptible to mechanical wear and environmental aging. Therefore, regular, precise, and efficient maintenance of the gearbox boom is an important guarantee for ensuring the safe and reliable operation of the bullet train. Currently, the maintenance of the Fuxing bullet train's gearbox boom mainly relies on traditional manual methods. Maintenance personnel need to manually use a hot air gun to heat the telescopic tubes covering the outer circumference of both ends of the boom to facilitate its disassembly and installation; simultaneously, manual measuring tools (such as vernier calipers) are used to measure the dimensions at both ends of the boom, and subsequent repair or replacement operations are carried out based on the measurement results. Furthermore, the assembly of components such as the boom nut, adjusting shims, and rubber seats also relies entirely on manual operation. This results in low maintenance efficiency, the need for multiple people to work simultaneously when the maintenance workload is large, high labor intensity, and significant differences in maintenance results among individuals, leading to unstable maintenance quality and impacting maintenance capacity. Therefore, developing automated maintenance equipment has significant engineering value for ensuring the efficiency and reliability of the high-speed rail operation and maintenance system. Summary of the Invention

[0003] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides an automated maintenance and assembly device for the gearbox boom of the Fuxing bullet train. Through a maintenance control unit, the device coordinates the feeding and conveying mechanism, the boom shaft end detection camera, the heat shrinking mechanism, the automatic handling mechanism, and the assembly mechanism to achieve automated, continuous maintenance and assembly of the boom, thereby improving maintenance efficiency and the quality of the heat-shrinkable boom.

[0004] To achieve the above objectives, the present invention provides an automatic maintenance and assembly device for the lifting boom of a Fuxing high-speed train gearbox, comprising: a step-type moving feeding conveyor mechanism; a feeding rotary positioning mechanism fixedly installed on both sides of the feeding port of the feeding conveyor mechanism; a lifting boom shaft end detection camera installed above the feeding conveyor mechanism to detect the diameter and appearance of the lifting boom shaft end; a heat shrinking mechanism installed at the heat shrinking station of the feeding conveyor mechanism to heat the lifting boom; a waste gas treatment and cooling mechanism fitted outside the heat shrinking mechanism for discharging waste gas and heat generated during the heat shrinking process and accelerating the cooling of the lifting boom; an automatic handling mechanism for handling the lifting boom and accessories, a lifting boom accessory storage platform and assembly mechanism disposed at the unloading port of the feeding conveyor mechanism; an unloading conveyor mechanism disposed on the side of the feeding conveyor mechanism; and a maintenance control unit for coordinating and managing the operation of each mechanism unit.

[0005] The feeding and conveying mechanism includes a heat-shrinkable circulating conveyor line, a boom positioning support frame evenly spaced on both sides of the heat-shrinkable circulating conveyor line, and guide positioning plates for limiting the boom position on both sides of the heat-shrinkable circulating conveyor line; the feeding rotation positioning mechanism includes a feeding limiting plate, a feeding rotation support wheel installed inside the feeding limiting plate, and a boom feeding heat-shrinkable tube limiting rod; the heat-shrinking mechanism includes an upper heat-shrinkable cover mechanism and a lower heat-shrinkable cover mechanism arranged opposite to each other, which adopt a semi-circular separation structure with heating tubes evenly distributed inside, and separate or merge under the action of a cylinder; the automatic handling mechanism includes a ground rail unit, a robot moving on the ground rail unit, and a robot gripper and positioning camera installed at the end of the robot; the assembly mechanism includes an assembly limiting fixture set at the top of the mechanism and an assembly limiting rotation auxiliary wheel installed at the lower part of the assembly limiting fixture to prevent the boom from moving.

[0006] Furthermore, the feeding and conveying mechanism also includes a conveyor support frame that supports the heat shrinkable circulating conveyor line, a motor that drives the heat shrinkable circulating conveyor line to reciprocate, a support base, and a connecting plate that fixes the guide positioning plate to the support base.

[0007] Furthermore, the feeding rotation positioning mechanism also includes a second motor installed on the outside of the feeding limit plate and connected to the feeding rotation support wheel, and a first cylinder fixed at the lower part of the feeding limit plate.

[0008] Furthermore, the heat shrinking mechanism also includes an upper heat shrink cover support mechanism fixed to the surface of the support base for fixing the upper heat shrink cover mechanism.

[0009] Furthermore, the exhaust gas treatment and cooling mechanism includes a heat-shrinkable protective cover that encloses the heat-shrinkable mechanism, a heat-shrinkable exhaust gas emission device installed on the top of the heat-shrinkable protective cover, and an axial flow fan installed inside the heat-shrinkable protective cover adjacent to the air inlet of the heat-shrinkable exhaust gas emission device.

[0010] Furthermore, the suspension rod accessory storage platform is equipped with accessory placement positioning posts.

[0011] Furthermore, the assembly mechanism also includes a boom assembly bracket, on which two second cylinders are symmetrically mounted on both sides.

[0012] Furthermore, the assembly mechanism also includes an assembly rotating support wheel for the support rods installed on the inner and outer sides of the L-shaped plate at the upper end of the second cylinder, and a third motor.

[0013] Furthermore, the maintenance control unit includes a PLC control system for coordinating and managing the operation of each mechanism unit, an operation panel, a control cabinet, and a robot control cabinet. The operation panel includes status indicator lights that display the operating status of the equipment and a touch screen for setting the operating parameters of each module.

[0014] According to another aspect of the present invention, the present invention provides an automatic maintenance and assembly method for the lifting boom of the Fuxing high-speed train gearbox, used to implement the automatic maintenance and assembly device for the lifting boom of the Fuxing high-speed train gearbox as described above, characterized by comprising the following specific steps:

[0015] S100: Turn on the device to put it into standby mode, place the hanger with the heat shrink tubing on the loading rotary positioning mechanism on the loading rotary support wheel, start the button on the operation panel, the hanger shaft end detection camera measures the appearance and size of the shaft end positions on both sides of the hanger, and after the measurement is qualified, it will automatically fall on the hanger positioning support frame of the loading conveyor mechanism and be transported to the heat shrink station, while the next workpiece is loaded at the same time.

[0016] S200: After the workpiece is transferred to the heat shrink station, the heat shrink mechanism automatically starts heating, and at the same time the exhaust gas treatment and cooling mechanism starts working, continuously conveying cold air to cool the processed parts and discharging the exhaust gas generated by heat shrinking. The heat-shrinked workpiece is then conveyed to the unloading position of the loading conveyor mechanism.

[0017] S300: Place the boom parts on the positioning column of the boom parts storage platform in advance, and confirm the position and quantity of the loading parts on the operation panel. The robot uses the positioning camera to confirm the position of the boom after heat shrinking at the unloading position, and then grabs and places it on the assembly mechanism.

[0018] S400: After the boom is loaded into the assembly mechanism, the second cylinder is activated to position and limit the boom. The robot then sequentially grabs the pads and rubber seat assemblies on the left and right sides of the boom and installs them on both sides of the boom. After assembly, the robot grabs the nuts on both sides for installation.

[0019] S500: After the components on both sides of the boom are assembled, the second cylinder descends to put the assembled boom in the unloading position. The robot grabs the assembled boom and places it on the unloading conveyor mechanism. It then automatically flows to the unloading port for transport and unloading, and the operation is completed.

[0020] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0021] 1. The present invention provides an automatic inspection and assembly equipment for the lifting boom of a Fuxing high-speed train gearbox. A boom shaft end detection camera detects the position of the shaft ends on both sides of the boom. The boom falls into a circulating feeding conveyor mechanism, which automatically transports the pre-assembled boom and telescopic tube to the heat shrink station. The heat shrink mechanism automatically heats the boom, while a waste gas treatment and cooling mechanism discharges the heat from the waste gas and cools the workpiece. After heat shrinking, the heat-shrinked workpiece moves stepwise and is fed to the assembly mechanism via an automatic handling mechanism. The assembly mechanism automatically picks up the parts from the boom accessory storage platform, assembles the heat-shrinked boom, and transports it to the unloading conveyor mechanism. The inspection and control unit controls the coordinated operation of each mechanism unit to complete the boom shaft end measurement, heat shrinking, and assembly process, achieving fully automated assembly line operation and improving inspection efficiency and assembly quality.

[0022] 2. The present invention provides an automatic inspection and assembly device for the lifting rod of a Fuxing high-speed train gearbox. The heat shrinking mechanism has heating tubes evenly distributed inside. Through two upper and lower telescopic cover mechanisms, the telescopic tube to be heat-shrinked is completely enclosed within the combined upper and lower heat shrink covers. The surrounding heating tubes then begin to operate, providing omnidirectional heating. This allows for stable and rapid uniform heating of the heat shrink tube, solving the problem of traditional manual heat shrinking with hot air guns, which results in poor appearance. This heat shrinking mechanism can achieve uniform heat shrinking of workpieces quickly and aesthetically pleasing.

[0023] 3. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train of the present invention realizes human-machine interaction through the touch screen of the operation panel, and allows for parameter settings of conveyor line speed, heat shrinking temperature, heat shrinking time, and exhaust speed, etc., supporting rapid process switching for maintenance of booms of different specifications, thereby improving the flexibility and applicability of the equipment. Attached Figure Description

[0024] Figure 1 This is a rear-view three-dimensional structural diagram of an automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0025] Figure 2 This is a frontal perspective three-dimensional structural diagram of an automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0026] Figure 3 This invention relates to an automatic maintenance and assembly device for the lifting boom of a Fuxing bullet train gearbox. Figure 2 A front view structural diagram;

[0027] Figure 4 This is a top view schematic diagram of an automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the material conveying mechanism of an automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the loading rotation positioning mechanism of an automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0030] Figure 7 This is a three-dimensional structural diagram of an automatic maintenance and assembly equipment for the gearbox boom of a Fuxing bullet train, showing the boom reaching the heat shrink station according to an embodiment of the present invention.

[0031] Figure 8 This is a front view schematic diagram of the automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention, showing the boom reaching the heat shrink station.

[0032] Figure 9 This is a schematic diagram of the heat shrink mechanism of an automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0033] Figure 10 This is a schematic diagram of the assembly mechanism of an automatic maintenance and assembly equipment for the gearbox boom of a Fuxing bullet train, showing the boom loading state according to an embodiment of the present invention.

[0034] Figure 11 This is a schematic diagram of the automatic assembly state structure of the assembly mechanism of the automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0035] Figure 12 This is a flowchart of an automatic maintenance method for the gearbox boom of the Fuxing bullet train, according to an embodiment of the present invention.

[0036] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-feeding conveyor mechanism, 101-heat shrink circulating conveyor line, 102-first motor, 103-conveyor line support frame, 104-lifting rod positioning support frame, 105-support base, 106-guide positioning plate, 107-connecting plate, 2-feeding rotary positioning mechanism, 201-feeding rotary support wheel, 202-feeding limit plate, 203-second motor, 204-first cylinder, 205-lifting rod feeding heat shrink tube limit rod, 3-lifting rod shaft end detection camera, 4-heat shrinking mechanism, 401-upper heat shrink cover mechanism, 402-lower heat shrink cover mechanism, 403-upper heat shrink cover support mechanism, 404 - Heating element, 5- Exhaust gas treatment and cooling mechanism, 501- Heat shrink protective cover, 502- Heat shrink exhaust gas emission device, 503- Axial flow fan, 6- Automatic handling mechanism, 601- Robot, 602- Ground rail unit, 7- Hanging rod accessory storage platform, 8- Assembly mechanism, 801- Hanging rod assembly bracket, 802- Second cylinder, 803- Assembly rotating support wheel, 804- Third motor, 805- Assembly limit tooling, 806- Assembly limit rotating auxiliary wheel, 9- Material unloading and conveying mechanism, 1001- Operation panel, 10011- Status indicator light, 10012- Touch screen, 1002- Control cabinet, 1003- Robot control cabinet, 11- Safety protection device. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0038] It should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of the present invention, such directional indication is only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0039] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] In this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0041] Example 1

[0042] like Figure 1-4 As shown in the figure, this embodiment of the invention provides an automatic maintenance and assembly device for the lifting boom of a Fuxing high-speed train gearbox, including a feeding conveying mechanism 1, a feeding rotary positioning mechanism 2, a boom shaft end detection camera 3, a heat shrinking mechanism 4, an exhaust gas treatment and cooling mechanism 5, an automatic handling mechanism 6, a boom accessory storage platform 7, an assembly mechanism 8, a discharging conveying mechanism 9, and a maintenance control unit. The two feeding rotary positioning mechanisms 2 are installed on both sides of the feeding port of the feeding conveying mechanism 1. The boom shaft end detection camera 3 is symmetrically installed on the feeding conveying mechanism 1 at the positions corresponding to the shaft ends on both sides of the boom 2. The heat shrinking mechanism 4 is located at the heat shrinking station in the middle of the feeding conveying mechanism. The exhaust gas treatment and cooling mechanism 5 is fitted on the outside of the heat shrinking mechanism 4. The automatic handling mechanism 6, the boom accessory storage platform 7, and the assembly mechanism 8 are located at the discharging port of the feeding conveying mechanism 1. The discharging conveying mechanism 9 is located on the side of the feeding conveying mechanism 1.

[0043] The maintenance control unit coordinates and manages the operation of each mechanism unit. A boom with heat-shrink tubing is placed on the loading rotary positioning mechanism 2. The boom shaft end detection camera 3 detects the positions of the boom shaft ends on both sides. After passing the detection, the boom falls onto the loading conveyor mechanism 1, moves in a step-by-step manner, and is automatically conveyed to the heat-shrinking mechanism 4 at the heat-shrinking station for uniform heating from all directions. Simultaneously, the exhaust gas treatment and cooling mechanism 5 exhausts heat to accelerate workpiece cooling. After heat shrinking, the boom is unloaded from the other end of the loading conveyor mechanism 1. The heat-shrinked boom is then loaded onto the assembly mechanism 8 via the automatic handling mechanism 6, and automatically grabs accessories from the boom accessory storage platform 7 to assemble the heat-shrinked boom. The assembled boom is then conveyed to the unloading conveyor mechanism 9, completing the boom shaft end measurement, heat shrinking, and assembly process, achieving fully automated assembly line operation.

[0044] like Figure 5 As shown, the feeding and conveying mechanism 1 includes a heat-shrinkable circulating conveyor line 101, a first motor 102, a conveyor line support frame 103, a hanging rod positioning support frame 104, a support base 105, a guide positioning plate 106, and a connecting plate 107. The heat shrinkable circulating conveyor line 101 is supported on the conveyor line support frame 103. The hanger positioning support frame 104 is evenly spaced on both sides of the heat shrinkable circulating conveyor line 101. The hanger positioning support frame 104 on both sides supports the hanger 11 that does not need to be heat-shrinked, and stably fixes the hanger 11. The heat shrinkable circulating conveyor line 101 is also equipped with guide positioning plates 106 on both sides to limit the hanger 11. The guide positioning plates 106 are fixed on the support base 105 through the connecting plate 107. The guide positioning plates 106 can be adjusted left and right. With one guide positioning plate 106 as the reference, the consistency of the hanger feeding is ensured. The support base 105 has a reserved heat shrink station in the middle for installing the heat shrink mechanism 4. The first motor 102 drives the heat shrinkable circulating conveyor line 101 to continuously reciprocate and continuously feed the hanger 11.

[0045] like Figure 6As shown, the feeding rotation positioning mechanism 2 includes a feeding rotation support wheel 201, a feeding limit plate 202, a second motor 203, a first cylinder 204, and a lifting rod feeding heat shrink tubing limit rod 205. The feeding rotation support wheel 201 is located inside the feeding limit plate 202 to support the lifting rod 12. The second motor 203 is located outside the feeding limit plate 202 and its output shaft is connected to the feeding rotation support wheel 201. The first cylinder 204 is fixed to the lower part of the feeding limit plate 202. The second motor 203 rotates to drive the feeding rotation support wheel 401 to rotate, thereby driving the lifting rod 11 to rotate. This facilitates the automatic detection of the diameter and appearance of the lifting rod 11 from all directions by the lifting rod shaft end detection camera 3 installed at the front. After the detection is qualified, the first cylinder 204 starts to descend, placing the lifting rod 11 on the lifting rod positioning support frame 104 of the feeding conveying mechanism 1. The heat shrink tubing loading limit rod 205 is installed between the two boom shaft end detection cameras 3 to limit the position of the heat shrink tubing and ensure that the heat shrink tubing is located in the center of the boom. The loading limit plate 202 limits the left and right sides after the boom is loaded, thereby ensuring that the boom is centered.

[0046] The boom shaft end detection camera 3 is fixed on the support base 105 of the feeding conveying mechanism 1 by a support plate and is aligned with both ends of the boom 1 of the feeding rotation positioning mechanism 2 to automatically detect the diameter and appearance of the boom shaft end.

[0047] like Figure 7-9 As shown, the heat shrinking mechanism 4 is installed at the heat shrinking station of the feeding conveyor mechanism 1, and includes an upper heat shrink cover mechanism 401, a lower heat shrink cover mechanism 402, an upper heat shrink cover support mechanism 403, and heating tubes 404. The upper heat shrink cover support mechanism 403 is fixed to the upper surface of the support base 105, and the upper heat shrink cover mechanism 401 is fixed on the upper heat shrink cover support mechanism 403, and is arranged opposite to the lower heat shrink cover mechanism 402 fixed on the support base 105. The upper heat shrink cover mechanism 401 and the lower heat shrink cover mechanism 402 adopt a semi-circular separation mechanism, and the heating tubes 404 are evenly spaced inside. The two move up and down under the action of a cylinder. When the workpiece moves, the two separate to prevent interference with the workpiece. When the workpiece moves to the heat shrinking position, the movement stops, and the two extend and merge into a complete heat shrink cover, forming 360° heating of the heat shrink tube 12, which can quickly shrink and ensure uniform heating. After the heat shrinking is completed, the two separate, and the heat shrinking circulation conveyor line 101 moves. The heat shrinking time is automatically controlled by the boom maintenance safety protection and control unit 10, and the heat shrinking temperature is monitored in real time by a temperature sensor.

[0048] The exhaust gas treatment and cooling mechanism 5 includes a heat-shrinkable protective cover 501 with an overall hollow bottom, a heat-shrinkable exhaust gas emission device 502, and an axial flow fan 503. The heat-shrinkable protective cover 501 encloses the heat-shrinkable mechanism 4, serving to isolate and protect it and prevent exhaust gas leakage. Two heat-shrinkable exhaust gas emission devices 502 are installed at its top, connecting to external pipes, to discharge the exhaust gas and heat generated during the heat-shrinking process, while avoiding impact on the surrounding environment. Two axial flow fans 503 are installed inside the two heat-shrinkable protective covers 501, adjacent to the air inlets of the heat-shrinkable exhaust gas emission devices 502. The two axial flow fans 503 draw air outwards, simultaneously carrying away the heat after heat shrinking and accelerating the rapid cooling of the workpiece. The axial flow fans 503 and the heat-shrinkable exhaust gas emission devices 502 form a series exhaust system. The hollow bottom structure of the heat-shrinkable protective cover 501 enables directional exhaust gas emission and cooling air circulation.

[0049] The automated handling mechanism 6 realizes the automated handling of the boom and accessories, including a robot 601, a ground rail unit 602, a robot gripper and a positioning camera. The ground rail unit 602 is set on the ground at the discharge port of the feeding conveyor mechanism 1. The robot 601 moves on the ground rail unit 602 along the vertical unloading direction. The robot gripper and the positioning camera are installed at its end. The robot gripper accurately grasps the middle position of the boom through the positioning camera and transports the boom from the feeding conveyor mechanism 1 to the assembly mechanism 8.

[0050] The suspension rod accessory storage platform 7 is placed parallel to the outside of the ground rail unit 602, and is equipped with accessory placement positioning columns on it. It can accommodate accessories for up to 4 sets of suspension rods, or less than 4 sets.

[0051] like Figure 10-11As shown, the assembly mechanism 8 includes a boom assembly bracket 801, a second cylinder 802, an assembly rotating support wheel 803, a third motor 804, an assembly limiting fixture 805, an assembly limiting rotating auxiliary wheel 806, and boom detection sensors. Two second cylinders 802 are symmetrically mounted on both sides of the boom assembly bracket 801. An L-shaped plate is mounted on the upper end of each second cylinder 802. The assembly rotating support wheel 803 and the third motor 804 are respectively mounted on the inner and outer sides of the L-shaped plate. To prevent the boom from moving radially during assembly, the assembly limiting fixture 805 is provided at the top, and the assembly limiting rotating auxiliary wheel 806 is provided at the lower part, providing an anti-slip function for the boom. The default state of the second cylinder 802 is the cylinder lowering state. When the boom is transferred to the position of the assembly rotating support wheel 803, and the boom detection sensors on both sides detect the workpiece, the lifting cylinder rises until it contacts the assembly limiting rotating auxiliary wheel 806, thus positioning the middle member of the boom. The robot gripper sequentially picks up the gaskets and rubber seat assemblies from the boom accessory storage platform 7 and installs them on the left and right sides of the boom. Then, the robot gripper picks up the nuts for installation. During nut installation, the boom rotates under the drive of the third motor 804 via the assembly rotating support wheel 803. The nuts are installed in the required positions by the robot 601. The accessories on both sides are installed sequentially. After assembly, the assembly rotating support wheel 803 rotates to the hexagonal edge detection position of the boom, facilitating positioning by the unloading conveyor line. The second cylinder 802 lowers to the default position, and the robot gripper transfers the assembled boom to the unloading conveyor mechanism 9.

[0052] The maintenance control unit includes a PLC control system, an operation panel 1001, a control cabinet 1002, and a robot control cabinet 1003. The operation panel 1001 is mounted on the heat-shrinkable protective cover 501 and includes status indicator lights 10011 and a touch screen 10012. The PLC control system coordinates and manages the operation of each mechanism unit, and the touch screen 10012 allows for parameterized settings of conveyor line speed, heat shrinking temperature, heat shrinking time, and exhaust speed to meet different needs. The status indicator lights 10011 use different colored lights to intuitively display the current operating status of the equipment, using red, yellow, and green to indicate fault alarm, standby, and normal operation, respectively.

[0053] Preferably, the device further includes a safety protection device 11, which is placed on the side of the feeding conveyor 1 and the unloading conveyor 9. It can be a safety light curtain, and the robot will stop working when a worker accidentally enters the work area.

[0054] Example 2

[0055] like Figure 12As shown in the figure, this embodiment of the invention provides a process flow for automatic maintenance and assembly of the gearbox boom of the Fuxing bullet train, including the following specific steps:

[0056] S100: Turn on the equipment to put it into standby mode. Place the hanger with the heat shrink tubing on the loading rotary positioning mechanism's loading rotary support wheel. Activate the button on the operation panel. The hanger shaft end detection camera measures the appearance and dimensions of the hanger shaft ends on both sides. After the measurement is qualified, the hanger automatically falls onto the hanger positioning support frame of the loading conveyor mechanism and is transported to the heat shrink station. At the same time, the next workpiece is loaded.

[0057] S200: After the boom moves to the heat shrink station, the upper and lower heat shrink cover mechanisms of the heat shrinking mechanism extend and merge into a complete heat shrink cover. The heating tube starts heating, and at the same time, the axial flow fan runs, continuously delivering cold air to cool the processed parts. The heat shrink exhaust gas emission device starts working to discharge the exhaust gas generated by heat shrinking. When the heat shrinking is completed, the upper and lower heat shrink cover mechanisms open, the feeding conveyor moves step by step, and the next boom to be heat-shrink enters the heat shrink position. At the same time, the boom that has been heat-shrinked moves forward and is conveyed to the unloading position of the feeding conveyor.

[0058] S300: Place the boom parts on the positioning column of the boom parts storage platform in advance, and confirm the position and quantity of the loading parts on the operation panel. The robot uses the positioning camera to confirm the position of the boom after heat shrinking at the unloading position, and then grabs and places it on the assembly mechanism.

[0059] S400: After the boom is fed to the assembly mechanism, the second cylinder is activated to position and limit the boom. The robot sequentially grabs the gaskets and rubber seat assemblies on the left and right sides of the boom and installs them on both sides of the boom. After assembly, the robot grabs the nuts on both sides for installation. During the assembly process, the boom rotates automatically under the action of the assembly rotating support wheel, so that the nuts are screwed into the boom threads, achieving synchronous installation of the threads.

[0060] S500: After the components on both sides of the boom are assembled, the second cylinder descends to put the assembled boom in the unloading position. The robot grabs the assembled boom and places it on the unloading conveyor mechanism. It then automatically flows to the unloading port for transport and unloading, and the operation is completed.

[0061] The equipment of this invention adopts a fully automated assembly line for inspection and assembly, realizing automated conveying, automatic measurement, automatic heat shrinking, and automatic assembly of the boom, which improves the quality of inspection and assembly of the booms for high-speed trains and increases work efficiency.

[0062] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic maintenance and assembly device for the gearbox boom of a Fuxing bullet train, characterized in that, The system includes a step-type moving feeding conveyor (1), a feeding rotation positioning mechanism (2) fixedly installed on both sides of the feeding port of the feeding conveyor (1), a boom shaft end detection camera (3) installed above the feeding conveyor (1) to detect the diameter and appearance of the boom shaft end, a heat shrinking mechanism (4) installed at the heat shrinking station of the feeding conveyor (1) to heat the boom, a waste gas treatment and cooling mechanism (5) fitted on the outside of the heat shrinking mechanism (4) to discharge the waste gas and heat generated during the heat shrinking process and accelerate the cooling of the boom, an automatic handling mechanism (6), a boom accessory storage platform (7) and an assembly mechanism (8) for handling booms and accessories set at the unloading port of the feeding conveyor (1), an unloading conveyor mechanism (9) set on the side of the feeding conveyor (1), and a maintenance control unit for coordinating and managing the operation of each mechanism unit. The feeding conveying mechanism (1) includes a heat shrinkable circulating conveyor line (101), a boom positioning support frame (104) evenly spaced on both sides of the heat shrinkable circulating conveyor line (101), and guide positioning plates (106) for limiting the boom on both sides of the heat shrinkable circulating conveyor line (101); the feeding rotation positioning mechanism (2) includes a feeding limiting plate (202), a feeding rotation support wheel (201) installed on the inner side of the feeding limiting plate (202), and a boom feeding heat shrink tube limiting rod (205); the heat shrinking mechanism (4) includes an upper heat shrink cover mechanism (40) arranged opposite to each other. 1) and the lower heat shrink cover mechanism (402), both adopt a semi-circular separation structure, with heating tubes (404) evenly distributed inside, which are separated or merged under the action of the cylinder; the automatic transport mechanism (6) includes a ground rail unit (602), a robot (601) moving on the ground rail unit (602), and a robot gripper and positioning camera installed at the end of the robot (601); the assembly mechanism (8) includes an assembly limiting fixture (805) set on the top of the mechanism and an assembly limiting rotating auxiliary wheel (806) installed on the lower part of the assembly limiting fixture (805) to prevent the boom from moving.

2. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train according to claim 1, characterized in that, The feeding conveying mechanism (1) further includes a conveying line support frame (103) supporting the heat shrinkable circulating conveying line (101), a first motor (102) driving the heat shrinkable circulating conveying line (101) to reciprocate, a support base (105), and a connecting plate (107) fixing the guide positioning plate (106) to the support base (105).

3. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train according to claim 1, characterized in that, The loading rotation positioning mechanism (2) further includes a second motor (203) installed on the outside of the loading limit plate (202) and connected to the loading rotation support wheel (201), and a first cylinder (204) fixed at the lower part of the loading limit plate (202).

4. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train according to claim 2, characterized in that, The heat shrink mechanism (4) further includes an upper heat shrink cover support mechanism (403) fixed to the surface of the support base (105) for fixing the upper heat shrink cover mechanism (401).

5. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train according to claim 1, characterized in that, The exhaust gas treatment and cooling mechanism (5) includes a heat shrinkable protective cover (501) that wraps the heat shrinkable mechanism (4), a heat shrinkable exhaust gas emission device (502) installed on the top of the heat shrinkable protective cover (501), and an axial flow fan (503) installed inside the heat shrinkable protective cover (501) adjacent to the air inlet of the heat shrinkable exhaust gas emission device (502).

6. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train according to claim 1, characterized in that, The suspension rod accessory storage platform (7) is equipped with accessory placement positioning columns.

7. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train according to claim 1, characterized in that, The assembly mechanism (8) also includes a boom assembly bracket (801), on which two second cylinders (802) are symmetrically installed on both sides.

8. The automatic maintenance and assembly equipment for the gearbox boom of the Fuxing bullet train according to claim 7, characterized in that, The assembly mechanism (8) also includes an L-shaped plate installed on the upper end of the second cylinder (802), and an assembly rotating support wheel (803) for supporting the hanging rod and a third motor (804) are respectively installed on the inner and outer sides of the L-shaped plate.

9. An automatic maintenance and assembly device for the lifting boom of a Fuxing bullet train gearbox according to any one of claims 1-8, characterized in that, The maintenance control unit includes a PLC control system that coordinates and manages the operation of each mechanism unit, an operation panel (1001), a control cabinet (1002), and a robot control cabinet (1003). The operation panel (1001) includes status indicator lights (10011) that display the operating status of the equipment and a touch screen (10012) for setting the operating parameters of each module.

10. An automatic maintenance and assembly method for the gearbox boom of a Fuxing bullet train, implemented using the automatic maintenance and assembly device for the gearbox boom of a Fuxing bullet train as described in any one of claims 1-9, characterized in that... The specific steps include the following: S100: Turn on the device to put it into standby mode, place the hanger with the heat shrink tubing on the feeding rotary positioning mechanism on the feeding rotary support wheel, start the button on the operation panel, and the hanger shaft end detection camera will measure the appearance and size of the shaft end positions on both sides of the hanger. After the measurement is qualified, it will automatically fall onto the hanger positioning support frame of the feeding conveyor mechanism and be transported to the heat shrink station. S200: After the workpiece is transferred to the heat shrink station, the heat shrink mechanism automatically starts heating, and at the same time the exhaust gas treatment and cooling mechanism starts working, continuously conveying cold air to cool the processed parts and discharging the exhaust gas generated by heat shrinking. The heat-shrinked workpiece is then conveyed to the unloading position of the loading conveyor mechanism. S300: Place the boom parts on the positioning column of the boom parts storage platform in advance, and confirm the position and quantity of the loading parts on the operation panel. The robot uses the positioning camera to confirm the position of the boom after heat shrinking at the unloading position, and then grabs and places it on the assembly mechanism. S400: After the boom is loaded into the assembly mechanism, the second cylinder is activated to position and limit the boom. The robot then sequentially grabs the pads and rubber seat assemblies on the left and right sides of the boom and installs them on both sides of the boom. After assembly, the robot grabs the nuts on both sides for installation. S500: After the components on both sides of the boom are assembled, the second cylinder descends to put the assembled boom in the unloading position. The robot grabs the assembled boom and places it on the unloading conveyor mechanism. It then automatically flows to the unloading port for transport and unloading, and the operation is completed.

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