Sunroof assembly line

Abstract

This invention discloses a sunroof assembly line, comprising a preparation table, a transplanting machine, a trolley positioning device, a mounting machine, and a control module. The transplanting machine includes a support frame and a transplanting mechanism, the latter being slidably mounted on the support frame. The support frame has a trolley fixing position for placing a transport trolley, and the transplanting mechanism is used to grab the sunroof and move it to the preparation table. The trolley positioning device has an inlet and is used to fix the transport trolley located at the trolley fixing position. The mounting machine is used to grab the sunroof from the preparation table and mount it to the sunroof assembly position. The control module is communicatively connected to both the transplanting machine and the mounting machine. Through the cooperation of the transplanting machine, the mounting machine, and the control module, the coordinated operation of each device and the automatic transfer and mounting of the sunroof are achieved. Compared to the manual transfer of sunroofs, this sunroof assembly line improves operational efficiency and production saturation, reduces waste from ancillary operations, and lowers the workload of operators.

Description

Technical Field

[0001] This invention relates to the field of sunroof assembly technology, and more particularly to a sunroof assembly line. Background Technology

[0002] As labor costs rise year by year, using automated devices to replace manual labor in some tasks has become a way to reduce labor costs.

[0003] In the automotive sunroof assembly line, the process is as follows: the operator pushes the panoramic sunroof transport trolley into the equipment, manually transfers the panoramic sunroof from the transport trolley to the preparation platform, and then controls the mounting machine to load the panoramic sunroof from the preparation platform and move it over the vehicle for assembly. However, in this process, because the panoramic mounting machine has to both remove the panoramic sunroof from the preparation platform and load it, the manual operation of transferring the panoramic sunroof from the transport trolley to the preparation platform is inefficient. The total cycle time of the above process is 86 seconds. With a production line cycle time of 58 seconds, the production ratio of panoramic sunroofs can only be about 67%, which cannot support 100% panoramic sunroof production. Manual operation of the equipment has the disadvantages of low efficiency and high workload.

[0004] Therefore, it is necessary to provide a new sunroof assembly line to solve or at least alleviate the aforementioned technical defects. Summary of the Invention

[0005] The main objective of this invention is to provide a sunroof assembly line that addresses the technical problems of low efficiency and high workload in sunroof assembly operations in the prior art.

[0006] To achieve the above objectives, the present invention provides a sunroof assembly line, comprising:

[0007] Preparation table;

[0008] A transplanter includes a support frame and a transplanting mechanism, the transplanting mechanism being slidably mounted on the support frame, the support frame having a trolley fixing position for placing a transport trolley, and the transplanting mechanism for grabbing a skylight and moving the skylight to the preparation table;

[0009] A trolley positioning device has an inlet and is used to fix a transport trolley located at the trolley fixing position.

[0010] The mounting machine is used to pick up the sunroof from the preparation table and mount the sunroof to the sunroof mounting position;

[0011] The control module is communicatively connected to both the transplanter and the mounting machine.

[0012] In one embodiment, the transplanting mechanism includes a walking component, a lifting component, a rotating component, and a gripping component, all of which are communicatively connected to the control module. The lifting component is slidably suspended on the top of the support frame. The walking component drives the lifting component to move. The rotating component is installed at the bottom of the lifting component. The gripping component is rotatably connected to the rotating component. The lifting component drives the rotating component and the gripping component to rise or fall. The rotating component drives the gripping component to rotate. The gripping component is used to grip the skylight.

[0013] In one embodiment, the rotating component includes a first rotating drive, a connecting rack, and a gear. The first rotating drive is mounted on the lifting component and is communicatively connected to the control module. The gear is rotatably mounted on the bottom of the lifting component, and the connecting rack is slidably mounted on the bottom of the lifting component. The connecting rack meshes with the gear. The first rotating drive is used to drive the connecting rack to move, and the gripping component is connected to the gear.

[0014] In one embodiment, the transplanter further includes a track interference handling mechanism, the track interference handling mechanism comprising:

[0015] A cantilever assembly includes a translation drive, a frame, and a movable frame. The frame is connected to the support frame, the movable frame is slidably connected to the frame, the translation drive is used to drive the movable frame to move, and the translation drive is communicatively connected to the control module.

[0016] A guide rail assembly is installed on the movable frame. The transplanting mechanism is slidably connected to the guide rail assembly. By driving the movable frame to move, the guide rail assembly can be extended or retracted from the support frame.

[0017] In one embodiment, the frame has a receiving groove, and the movable frame includes a connecting plate, a sliding plate connected to the connecting plate and extending downward, and a mounting portion. The sliding plate extends into the receiving groove and is slidably connected to the frame, and the mounting portion is connected to the guide rail assembly.

[0018] In one embodiment, the transport trolley is provided with a sunroof support component, which includes a support frame and multiple sets of support blocks. Each support block is rotatably connected to the support frame. The multiple sets of support blocks are arranged vertically at intervals to hold multiple sunroofs. The sunroof assembly line also includes an automatic flipping device that is communicatively connected to the control module. The automatic flipping device is used to flip each of the support blocks.

[0019] In one embodiment, the automatic flipping device includes:

[0020] Mounting rack;

[0021] The moving mechanism includes a lifting assembly, a translation assembly, and a rotation assembly, all of which are communicatively connected to the control module. The lifting assembly includes a lifting seat and a drive component communicatively connected to the control module. The lifting seat is elliptically connected to the mounting frame, and the drive component is drively connected to the lifting seat and is used to drive the lifting seat to rise or fall. The translation assembly is mounted on the lifting seat, and the rotation assembly is mounted on the translation assembly. The translation assembly is used to drive the rotation assembly to move horizontally to move closer to or further away from the support block.

[0022] A clamping member is connected to the rotating assembly and communicates with the control module. The rotating assembly is used to drive the clamping member to rotate, thereby flipping the support block held by the clamping member.

[0023] In one embodiment, the trolley positioning device includes a guide and a check mechanism. The guide is disposed outside the trolley fixed position and has an inlet. The check mechanism is disposed opposite to the inlet. When the transport trolley moves along the inlet to the trolley fixed position, the check mechanism engages with the transport trolley.

[0024] In one embodiment, the anti-reverse mechanism includes a first mounting base, an anti-reverse hook, and a first driving member. The first end of the anti-reverse hook is hook-shaped and used to hook the transport trolley. The second end of the anti-reverse hook is connected to the output end of the first driving member. The anti-reverse hook is hinged to the first mounting base at a position between its first end and second end. The first driving member is used to drive the anti-reverse hook to rotate.

[0025] In one embodiment, the trolley positioning device further includes a limiting member, which includes a limiting seat and a lever. The limiting seat is disposed outside the guide member, and the lever is rotatably mounted on the limiting seat. The lever is used to screw into the inlet and abut against the transport trolley.

[0026] In this invention, the operator first pushes the transport trolley loaded with skylights into the trolley fixing position below the transplanter. The trolley positioning device is mainly used to position the transport trolley, ensuring that the transport trolley in the fixing position is in a stable state and preventing it from moving. This ensures that the transplanting mechanism corresponds to the position of the skylight when it moves down to grab it, without significant deviation. The transport trolley can carry multiple layers of skylights. The control module controls the transplanting mechanism to move above the transport trolley, and then drives the transplanting mechanism to descend and grab the skylights loaded on the transport trolley. Subsequently, the skylights are lifted together. Then, the control module controls the transplanting mechanism to move above the preparation platform, descend and release the grabbing of the skylights. The skylights separate from the transplanting mechanism and are transferred to the preparation platform. After the transplanting mechanism moves away, the control module controls the mounting machine to move to the preparation platform to grab the skylights and mount them onto the vehicle to be assembled. The transplanter will then repeat the above process to transplant the next skylight. By driving the transplanter and the carrier through the control module, the coordinated operation of various devices and the automatic transfer and loading of the skylight are realized. Compared with the manual transfer of the skylight, this invention improves the work efficiency and production saturation, reduces the waste of ancillary operations, and reduces the workload of the operators. Attached Figure Description

[0027] 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a sunroof assembly line according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of a transport trolley, a transplanter, and a preparation table according to an embodiment of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of a transplanting mechanism according to an embodiment of the present invention;

[0031] Figure 4 This is a three-dimensional structural diagram of a walking component according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of a rotating component according to an embodiment of the present invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the track interference processing mechanism in a transplanter according to an embodiment of the present invention;

[0034] Figure 7This is a three-dimensional structural diagram of an orbital interference processing mechanism according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the transplanting mechanism in the transplanter in the suspended state according to an embodiment of the present invention;

[0036] Figure 9 This is a three-dimensional structural diagram of a sunroof support component according to an embodiment of the present invention;

[0037] Figure 10 This is a three-dimensional structural diagram of an automatic flipping device according to an embodiment of the present invention;

[0038] Figure 11 This is a three-dimensional structural diagram of the clamping component after the support block has been flipped, according to an embodiment of the present invention.

[0039] Figure 12 This is a three-dimensional structural diagram of a transport trolley and a trolley positioning device according to an embodiment of the present invention;

[0040] Figure 13 This is a top view of a transport trolley and a trolley positioning device according to an embodiment of the present invention;

[0041] Figure 14 This is a three-dimensional structural diagram of the check valve mechanism and the transport trolley part according to an embodiment of the present invention;

[0042] Figure 15 This is a side view of the check mechanism and transport trolley portion according to an embodiment of the present invention;

[0043] Figure 16 This is a three-dimensional structural diagram of the limiting component and the transport trolley in a state according to an embodiment of the present invention;

[0044] Figure 17 This is a three-dimensional structural diagram of the limiting member and the transport trolley in another state according to an embodiment of the present invention.

[0045] Explanation of icon numbers:

[0046]

[0047]

[0048] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0049] 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 a part of the embodiments of the present invention, and not all of them. 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.

[0050] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0051] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "multiple" means at least two groups, such as two groups, three, etc., unless otherwise explicitly specified.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two sets of components or the interaction between two sets of components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0054] Please refer to Figure 1 , Figure 2 , Figure 12 and Figure 13This invention provides a sunroof assembly line 100, which includes a preparation platform 1, a transplanter 2, a trolley positioning device 4, a mounting machine 3, and a control module. The transplanter 2 includes a support frame 21 and a transplanting mechanism 22. The transplanting mechanism 22 is slidably mounted on the support frame 21. The support frame 21 has a trolley fixing position 211 for placing a transport trolley 110. The transplanting mechanism 22 is used to grab the sunroof and move it to the preparation platform 1. The trolley positioning device 4 has an inlet 43 and is used to fix the transport trolley 100 located at the trolley fixing position 211. The mounting machine 3 is used to grab the sunroof from the preparation platform 1 and mount it to the sunroof assembly position. The control module is communicatively connected to the transplanter 2 and the mounting machine 3, and is used to control the automatic operation of the transplanter 2 and the mounting machine 3.

[0055] In the above embodiment, the operator first pushes the transport trolley 110 loaded with skylights into the trolley fixing position 211 below the transplanter 2. The trolley positioning device 4 is mainly used to position the transport trolley 110, so that the transport trolley 110 in the trolley fixing position 211 is in a stable state and prevents it from moving, so as to ensure that the transplanting mechanism 22 corresponds to the position of the skylight when it moves down to grab the skylight, and there will be no large deviation. The transport trolley 110 can be loaded with multiple layers of skylights, and the control module controls the transplanting mechanism 22 to run to the transport trolley 110. Above, the transplanting mechanism 22 is driven to descend and grab the sunroof loaded on the transport trolley 110. The sunroof is then lifted, and the control module controls the transplanting mechanism 22 to move above the preparation platform 1, descend, and release the grip on the sunroof. The sunroof separates from the transplanting mechanism 22 and is transferred to the preparation platform 1. After the transplanting mechanism 22 moves away, the control module controls the mounting machine 3 to move to the preparation platform 1, grab the sunroof, and mount it onto the vehicle 130 to be assembled. The transplanting machine 2 then repeats the above process to transplant the next sunroof. By driving the transplanting machine and mounting machine through the control module, the coordinated operation of various devices and the automatic transfer and mounting of sunroofs are achieved. Compared to the manual transfer of sunroofs, this embodiment improves work efficiency and production saturation, reduces ancillary work waste, and lowers the workload of operators.

[0056] The automatic removal and transplanting of the sunroof is expected to reduce the time wasted on ancillary operations by 16 seconds. The control module can be a PLC (Programmable Logic Controller) or an industrial computer. Furthermore, safety devices such as safety doors, safety light curtains, emergency stops, and safety latches can be added around the sunroof assembly line 100 to prevent the transplanter 2, the carrier 3, and other devices from coming into contact with people during operation, eliminating safety hazards such as collisions and entanglement between the devices and people.

[0057] Reference Figures 3-6In one embodiment, the transplanting mechanism 22 may specifically include a walking component 221, a lifting component 222, a rotating component 223, and a gripping component 224, which are respectively communicatively connected to the control module. The lifting component 222 is slidably suspended on the top of the support frame 21. The walking component 221 is used to drive the lifting component 222 to move. The rotating component 223 is installed at the bottom of the lifting component 222. The gripping component 224 is rotatably connected to the rotating component 223. The lifting component 222 is used to drive the rotating component 223 and the gripping component 224 to rise or fall. The rotating component 223 is used to drive the gripping component 224 to rotate. The gripping component 224 is used to grip the skylight. The traveling component 221 first drives the lifting component 222 to move above the transport trolley 110. Then, the lifting component 222 drives the gripping component 224 to descend until it reaches a height where it can grip the sunroof. After descending to the correct position, the gripping component 224 moves to grab the sunroof. Then, the lifting component 222 drives the gripping component 224 to lift the sunroof up together. Afterward, the traveling component 221 continues to drive the lifting component 222 to move above the preparation platform 1 so that the mounting machine 3 can mount the sunroof onto the vehicle 130 for assembly. At the same time, before lowering and placing the sunroof... The rotating component 223 drives the gripper 224 to rotate, changing the placement angle of the sunroof in the horizontal plane. This ensures the sunroof's angle matches the installation angle on the vehicle 130 to be assembled (the sunroof needs to be rotated 90° on-site), making the subsequent assembly process smoother and simplifying the workflow. After the angle adjustment, the lifting component 222 drives the gripper 224 to descend, releasing the gripper 224 from the sunroof and transferring it from the transport trolley 110 to the preparation platform 1. This sunroof will then be mounted for assembly with the vehicle 130, and the transplanter 2 will repeat the above process to transplant the next sunroof.

[0058] It should be understood that the placement of the transport trolley 110 is not limited to one location. At least two spaced trolley accommodating positions can be set in the space at the bottom of the support frame 21. Both trolley accommodating positions are located below the slide rail structure. The transplanting mechanism 22 can selectively grab the skylight on one of the transport trolleys 110. After all the transplanting is completed, the grabbing position is changed to grab the skylight on the other transport trolley 110, so that the empty transport trolley 110 can be taken out and pushed back into another transport trolley 110 filled with skylights, without interfering with the operation of the transplanting mechanism 22.

[0059] The gripping component 224 may include a bracket 2241 and multiple suction cups 2242, with the suction cups 2242 spaced apart on the bracket 2241. The bracket 2241 is connected to the rotating component 223. The suction cups 2242 are located at the bottom of the bracket 2241 and are connected to an external air source, which may be a vacuum generator, to achieve suction gripping of the sunroof through negative pressure.

[0060] In one embodiment, a horizontally extending slide rail structure is provided on the support frame 21, and the lifting member 222 is slidably connected to the slide rail structure. The extension direction of the slide rail structure is the same as the movement direction of moving the skylight from the transport trolley 110 to the preparation table 1. The traveling member 221 drives the lifting member 222 to move horizontally above the slide rail 212, thereby driving the gripping member 224 connected to the bottom of the lifting member 222 to move back and forth.

[0061] In one embodiment, the lifting component 222 includes a lifting mounting frame 2221, a lifting drive component 2222, and a lifting platform 2223. The lifting drive component 2222 is mounted on the lifting mounting frame 2221, and its output end is connected to the lifting platform 2223. The lifting platform 2223 is slidably connected to the lifting mounting frame 2221. Specifically, the lifting mounting frame 2221 is slidably connected to a slide rail structure. The lifting drive component 2222 is used to drive the lifting platform 2223 to rise or fall relative to the lifting frame, thereby adjusting the height of the gripper 224 to sequentially transfer the multi-layer skylights loaded on the transport trolley 110 to the preparation platform 1.

[0062] Specifically, the lifting drive component 2222 includes a first motor 2226, a transmission screw 2227, and an extension 2228. The first motor 2226 is connected to the transmission screw 2227, which is mounted on the lifting mounting frame 2221. The extension 2228 is threadedly connected to the transmission screw 2227 and connected to the lifting platform 2223. The lifting drive component 2222 can be an electric cylinder, a modular product integrating the first motor 2226 and the transmission screw 2227, capable of converting the rotational motion of the first motor 2226 into linear motion. The first motor 2226 can be a servo motor. This embodiment has advantages such as low noise, energy saving, cleanliness, high rigidity, impact resistance, ultra-long lifespan, and simple operation and maintenance. Alternatively, the lifting drive component 2222 can also be a pneumatic cylinder directly driving the lifting mechanism.

[0063] In one embodiment, the traveling member 221 includes a second motor 2211, a motor mounting member 2212, and a rubber-coated wheel 2213. The motor mounting member 2212 is connected to the lifting mounting frame 2221. The second motor 2211 is mounted on the motor mounting member 2212. The rubber-coated wheel 2213 is rotatably mounted on the output end of the second motor 2211 and is used for rolling contact with the slide rail structure. The second motor 2211 provides power for the rotation of the rubber-coated wheel 2213. When the rubber-coated wheel 2213 abuts against the slide rail structure, the rolling of the rubber-coated wheel 2213 will drive the entire transplanting mechanism 22 to move relative to the support frame 21 along the length direction of the slide rail structure. The second motor 2211 can be a geared motor, while the rubber-coated wheel 2213 has advantages such as durability, water resistance, impact resistance and wear resistance. It can resist various wear and tear, enabling the equipment to maintain a good working condition for a long time and not be easily damaged by wear, thus greatly extending the service life of the equipment. It also has a good sound absorption effect, so it can effectively reduce the noise of the machine and make the working environment quieter, thus ensuring the safety of the surrounding environment.

[0064] In addition, the distance between the rubber-coated wheel 2213 and the slide rail structure can be adjusted. During operation, the rubber-coated wheel 2213 is pressed against the slide rail structure. When maintenance is required, the rubber-coated wheel 2213 can be separated from the slide rail structure. Specifically, the traveling component 221 also includes a lifting cylinder 2214. The motor mounting component 2212 includes a second mounting base 2216, a mounting plate 2217, and a top plate 2218. The second mounting base 2216 is connected to the lifting mounting frame 2221. The mounting plate 2217 is rotatably mounted on the second mounting base 2216. The top plate 2218 is mounted on the side of the mounting plate 2217 facing the lifting cylinder 2214. The lifting cylinder 2214 is mounted on the mounting plate 2217. The output end of the lifting cylinder 2214 is used to abut against the top plate 2218. The second motor 2211 is mounted on the mounting plate 2217. The lifting cylinder 2214 rises by pressing against the top plate 2218, which drives the mounting plate 2217, the lifting cylinder 2214, and the rubber-coated wheel 2213 to move together toward the slide rail structure until the rubber-coated wheel 2213 is pressed against the slide rail structure; when separation is required, the lifting cylinder 2214 can be driven in the opposite direction.

[0065] In one embodiment, the rotating component 223 includes a first rotating drive component 2231, a connecting rack 2232, and a gear 2233. The first rotating drive component 2231 is mounted on the lifting component 222, the gear 2233 is rotatably mounted on the bottom of the lifting component 222, and the connecting rack 2232 is slidably mounted on the bottom of the lifting component 222. The connecting rack 2232 meshes with the gear 2233. The first rotating drive component 2231 drives the connecting rack 2232 to move, and the gripping component 224 is connected to the gear 2233. By setting the transmission structure of the connecting rack 2232 and the gear 2233, the linear motion of the first rotating drive component 2231 can be converted into the rotational motion of the gripping component 224, thereby changing the angle of the sunroof being gripped. Specifically, the first rotating drive component 2231 drives the connecting rack 2232 to move linearly, and as the linear rack moves, the gear 2233 meshing with it rotates. This embodiment has the advantages of convenient setup and simple structure.

[0066] Reference Figures 6-8In one embodiment, the transplanter 2 further includes a track interference processing mechanism, which includes a cantilever assembly 231 and a guide rail assembly 232. The cantilever assembly 231 includes a translation drive 2311, a frame 2312, and a movable frame 2313. The frame 2312 is used to connect with the support frame 21, and the movable frame 2313 is slidably connected to the frame 2312. The translation drive 2311 is used to drive the movable frame 2313 to move, and the translation drive 2311 is communicatively connected to the control module. The guide rail assembly 232 is installed on the movable frame 2313, and the transplanting mechanism 22 is slidably connected to the guide rail assembly 232. By driving the movable frame 2313 to move, the guide rail assembly 232 can be extended or retracted from the support frame 21. The preparation platform 1 is located outside the support frame 21. The carrier machine 3 and the transplanter 2 have overlapping operations above the preparation platform 1. To avoid interference, when the transplanting mechanism 22 of the transplanter 2 grasps the skylight and is about to place it, the translation drive 2311 drives the moving frame 2313 to move closer to the preparation platform 1. This causes the transplanting mechanism 22 to move along with the moving frame 2313 and the guide rail assembly 232 to a position above the support frame 21, precisely above the preparation platform 1. At this point, the transplanting mechanism 22 can descend and place the skylight on the preparation platform 1. After placement... The translation drive 2311 drives the moving frame 2313 to move away from the preparation table 1, causing the transplanting mechanism 22 to retract into the support frame 21 along with the moving frame 2313 and the guide rail assembly 232. The mounting machine 3 can then enter above the preparation table 1 to grab the skylight. As the guide rail assembly 232 retracts, the transplanting mechanism 22 can move on the guide rail assembly 232 to above the transport trolley 110, grab the skylight again, and then move to a position closer to the preparation table 1. After the mounting machine 3 leaves the preparation table 1, the above process is repeated to place a new skylight on the preparation table 1. By setting a track interference handling mechanism on the transplanting machine 2, interference between the transplanting machine 2 and the preparation table 1, as well as interference between the transplanting machine 2 and the mounting machine 3, is avoided. This embodiment solves the problem of interference that occurs when the skylight is automatically transferred to the assembly line, and has the advantage of good safety.

[0067] It should be understood that the aforementioned slide rail structure is the guide rail assembly 232 in this embodiment.

[0068] In one embodiment, the frame 2312 has a receiving groove 2316, and the movable frame 2313 includes a connecting plate 2317, a sliding plate 2318 connected to the connecting plate 2317 and extending downward, and a mounting part 2319. The sliding plate 2318 extends into the receiving groove 2316 and is slidably connected to the frame 2312, and the mounting part 2319 is connected to the guide rail assembly 232. The mounting part 2319 and the sliding plate 2318 are spaced apart, and the guide rail assembly 232 will not interfere with the frame 2312 during movement relative to the frame 2312. The opening of the receiving groove 2316 is upward, and the movable frame 2313 as a whole can slide relative to the receiving groove 2316. The length direction of the receiving groove 2316 is the moving direction of the movable frame 2313, so that the movable frame 2313 moves within the trajectory formed by the receiving groove 2316, resulting in better running stability. In addition, the receiving groove 2316 can also support the movable frame 2313.

[0069] In one embodiment, the connecting plate 2317 is the main load-bearing component of the movable frame 2313. In order to provide better support for the movable frame 2313, a slide rail 212 is provided on the support frame 21, and a slider is provided at the bottom of the connecting plate 2317. The slider is used to slide with the slide rail 212. At the same time, the structure of the slider and the slide rail 212 has low running friction, which further improves the stability of the movable frame 2313. The number of sliders on the same slide rail 212 is not limited to one, but can also be multiple, which are arranged at intervals at the bottom of the connecting plate 2317. Furthermore, the structure of the slide rail 212 and the slider can be two sets arranged opposite to each other, thereby improving the running balance of the movable frame 2313.

[0070] The guide rail assembly 232 is the moving track of the transplanting mechanism 22. It is typically quite long. If it is only connected and supported at the mounting part 2319, when the transplanting mechanism 22 moves along the guide rail assembly 232 to a position away from the mounting part 2319, the guide rail assembly 232 may experience excessive stress at that point, leading to bending, deformation, or even breakage. To avoid this, in one embodiment, the track interference handling mechanism of the transplanting machine 2 further includes a support member 233. The support member 233 and the moving frame 2313 are spaced apart along the length of the guide rail assembly 232. One end of the support member 233 is connected to the guide rail assembly 232, and the other end is used for sliding connection with the slide rail 212. The support member 233 can move along with the guide rail assembly 232. The support member 233 and the mounting part 2319 suspend the guide rail assembly 232 at multiple points. Furthermore, the number of support members 233 is not limited to one; multiple support members can be used, thereby significantly improving the service life of the guide rail assembly 232.

[0071] In one embodiment, the translation drive 2311 includes a push cylinder for mounting on the support frame 21, and the output shaft of the push cylinder is connected to the connecting plate 2317. The axis of the push cylinder is parallel to the length direction of the guide rail assembly 232. Using a cylinder as a power source results in a simple structure, easy installation and maintenance, and fast response time. This embodiment has the advantages of convenient setup and simple structure.

[0072] In one embodiment, the guide rail assembly 232 includes a guide rail 2321 and a plurality of detection photocells 2322. The plurality of detection photocells 2322 are spaced apart on the guide rail 2321. The detection photocells 2322 are used to detect the position of the transplanting mechanism 22, which is slidably mounted on the guide rail 2321. Each detection photocell 2322 may have a different function; some are used to transmit signals to the controller to control the transplanting mechanism 22 to decelerate, while others are used to control the transplanting mechanism 22 to stop, to ensure that the transplanting mechanism 22 can stably operate into position, such as the lowering gripping position when grabbing the skylight from the logistics table, or the lowering placement position when placing the skylight on the preparation table 1.

[0073] In one embodiment, the track interference handling mechanism of the transplanter 2 further includes a collision prevention post 234. The collision prevention post 234 is installed on the outside of the guide rail assembly 232, and a buffer pad is provided at the end of the collision prevention post 234 away from the guide rail assembly 232. Under normal electronic control program, the transplanter 2 and the carrier 3 will alternately run above the preparation platform 1 to avoid interference and collision. However, if there is an error in the program or misoperation, the carrier 3 may collide with the transplanter 2, causing damage to the equipment. The extension direction of the collision prevention post 234 is specifically set towards the carrier 3. When the carrier 3 and the transplanter 2 interfere, the collision prevention post 234 can prevent the equipment from colliding and damaging the equipment.

[0074] In one embodiment, the track interference handling mechanism of the transplanter 2 further includes a buffer 235, which is installed on the edge of the support frame 21. The buffer 235 extends along a first direction and is positioned towards the moving frame 2313. The buffer 235 is telescopic, used to limit the stroke of the moving frame 2313, preventing the moving frame 2313 from causing the guide rail assembly 232 to extend too far. Simultaneously, the buffer 235 is elastic; when the moving frame 2313 reaches this position, due to inertia, the buffer 235 prevents a hard collision with the moving frame 2313, thus providing cushioning protection. Additionally, a limiting rod with an extension shorter than the buffer 235 can be added next to the buffer 235. After the moving frame 2313 compresses the buffer 235 by a certain distance, it abuts against the moving frame 2313, preventing further movement.

[0075] Reference Figures 9-11In one embodiment, the transport trolley 110 is equipped with a skylight support 120, which includes a support frame 121 and multiple sets of support blocks 122. Each support block 122 is rotatably connected to the support frame 121. The multiple sets of support blocks 122 are arranged vertically at intervals, and each set of support blocks 122 is used to place the skylight. The skylight assembly line 100 also includes an automatic flipping device 5 that is communicatively connected to the control module. The automatic flipping device 5 is used to flip each support block 122. The support block 122 has a horizontal state and an open state. The horizontal state is used to support the skylight. The automatic flipping device 5 can rotate the support block 122 of the skylight to the open state after the transplanter 2 removes the skylight that is currently at the top. Manually flipping the support block 122 would result in 4 seconds of wasted time in auxiliary operations. By setting up the automatic flipping device 5, the support block 122 can be opened automatically. Compared with manually flipping the support block 122, it is expected to reduce the wasted time in auxiliary operations by 4 seconds, and has the advantages of more timely flipping, higher work efficiency, and reduced labor costs. The automatic flipping device 5 can be set behind the trolley fixing position 211.

[0076] In one embodiment, the automatic flipping device 5 includes a mounting frame 51, a moving mechanism 52, and a clamping member 53. The moving mechanism 52 includes a lifting assembly 521, a translation assembly 522 and a rotation assembly 523, which are respectively connected to the control module. The lifting assembly 521 includes a lifting seat 5211 and a drive member 5212 connected to the control module. The lifting seat 5211 is vertically connected to the mounting frame 51, and the drive member 5212 is drively connected to the lifting seat 5211 and is used to drive the lifting seat 5211 to rise or fall. The translation assembly 522 is mounted on the lifting seat 5211, and the rotation assembly 523 is mounted on the translation assembly 522. The translation assembly 522 is used to drive the rotation assembly 523 to move horizontally to move closer to or away from the support block 122. The clamping member 53 is connected to the rotation assembly 523 and is connected to the control module. The rotation assembly 523 is used to drive the clamping member 53 to rotate to flip the support block 122 held by the clamping member 53.

[0077] The operator first pushes the transport trolley 110, which is loaded with skylights, under the transplanter 2. A skylight support 120, which contains multiple layers of skylights, is placed on the transport trolley 110. After positioning the transport trolley 110, the transplanter 2 is controlled to grab the topmost skylight from the transport trolley 110. After the skylight is grabbed, to prevent interference between the transplanter 2 and the topmost support block 122 when it rises to grab the next skylight, the support block 122 needs to be rotated from a horizontal position to a vertically open position. The lifting seat 5211 is then moved to the first position (the first position refers to the height at that position) by controlling the drive unit 5212. When the clamping member 53 moves toward the support block 122, it can clamp the uppermost support block 122; the same applies to the second position below (clamping different support blocks 122 in sequence downwards). Then, the translation component 522 is controlled to drive the rotation component 523 to move toward the support block 122, so that the clamping member 53 installed on the rotation component 523 clamps the support block 122. Finally, the rotation component 523 is controlled to drive the clamping member 53 to rotate, thereby flipping the support block 122 clamped by the clamping member 53 from the horizontal state to the open state. After the flipping is completed, the translation component 522 moves backward, and the rotation component 523 rotates in the opposite direction to return to the initial state. After the second sunroof is removed, the drive component 5212 drives the lifting seat 5211 to move downwards to the second position, repeating the above flipping action to flip open the support block 122 carrying the second sunroof. The subsequent principle is the same as above, until all sunroofs are removed.

[0078] More specifically, the clamping member 53 includes a connecting portion 531, a first clamping rod 532 and a second clamping rod 533 spaced apart on the connecting portion 531, a rotating assembly 523 being kinetically connected to the connecting portion 531, and a clamping space being formed between the first clamping rod 532 and the second clamping rod 533 for accommodating a portion of the support block 122. The first clamping rod 532 and the second clamping rod 533 are used to hold the support block 122 within the clamping space. The support block 122 specifically includes a support plate and a control rod connected to each other, and the clamping space is used to accommodate the control rod.

[0079] In one embodiment, the translation component 522 includes a translation drive cylinder 5221 and a third mounting base 5222. The translation drive cylinder 5221 is mounted on the lifting base 5211, and the third mounting base 5222 is slidably connected to the lifting base 5211. The output end of the translation drive cylinder 5221 is connected to the third mounting base 5222. The translation drive cylinder 5221 drives the third mounting base 5222 to slide on the lifting base 5211, thereby causing the rotating component 523 and the clamping member 53 connected to the lifting base 5211 to move closer to or further away from the support block 122. Using a cylinder as a power source has the advantages of simple structure, easy installation and maintenance, and fast response time.

[0080] In one embodiment, the rotating assembly 523 includes a second rotary drive cylinder 5231, a transmission member 5232, and a rotating part 5233. The second rotary drive cylinder 5231 is mounted on a third mounting base 5222, and the rotating part 5233 is rotatably mounted on the third mounting base 5222. The output end of the second rotary drive cylinder 5231 is connected to the transmission member 5232, the rotating part 5233 is connected to the transmission member 5232, and the clamping member 53 is connected to the rotating part 5233. The advantages of using a cylinder are the same as described above, but by setting the transmission member 5232, the linear motion of the second rotary drive cylinder 5231 is converted into the rotational motion of the rotating part 5233, thereby driving the clamping member 53 to rotate.

[0081] Specifically, the transmission component 5232 includes a linear rack and a rotary gear 2233. The linear rack is slidably connected to the third mounting base 5222, and the rotary gear 2233 is mounted on the outer periphery of the rotating part 5233. The linear rack and the rotary gear 2233 mesh with each other. The output end of the second rotary drive cylinder 5231 is connected to the linear rack. The second rotary drive cylinder 5231 drives the linear rack to move linearly, and as the linear rack moves, the meshing rotary gear 2233 rotates. This design is convenient and the structure is simple.

[0082] In one embodiment, the lifting assembly 521 further includes a lead screw 5213 and a connecting seat 5214. The lead screw 5213 passes through and is threadedly connected to the connecting seat 5214. The lead screw 5213 is connected to a driving member 5212, which drives the lead screw 5213 to rotate. The connecting seat 5214 is mounted on the lifting base 5211. Using the lead screw 5213 for transmission has the advantages of high positioning accuracy, high transmission efficiency, and long service life. The driving member 5212 can specifically be a servo motor. Additionally, a speed reducer can be installed at the output end of the servo motor to reduce its speed and increase its torque.

[0083] In one embodiment, the support blocks 122 of each layer are arranged in a left-right configuration. There are two sets of moving mechanisms 52 and clamping members 53. The two sets of moving mechanisms 52 are arranged opposite to each other, and the two sets of clamping members 53 are respectively connected to two sets of rotating components 523. The rotation directions of the two sets of clamping members 53 are opposite, and the two sets of clamping members 53 correspond one-to-one with the left and right sets of support blocks 122. The two sets of clamping members 53 are used to drive the two sets of support blocks 122 to open outward.

[0084] In one embodiment, the automatic flipping device 5 further includes a detection component, which includes a linear drive cylinder 541, a base 542, a detection switch 543, and an extension 544. The base 542 is slidably mounted on the lifting seat 5211. The linear drive cylinder 541 is connected to the base 542. The detection switch 543 is mounted on the base 542. The extension 544 is telescopically connected to the base 542. One end of the extension 544 is used to abut against the skylight, and the other end of the extension 544 is used to press the detection switch 543. The extension 544 extends toward the skylight supported by the support block 122. When the clamping member 53 approaches the support block 122, if there is a skylight on the support block 122 that has not yet been grabbed, the extension 544 will be abutted by the skylight and pushed toward the base 542, causing one end of the extension 544 to press the detection switch 543, indicating that a skylight has been detected. At this time, an alarm will be sounded and the flipping operation of the clamping member 53 will be stopped. Among them, the linear drive cylinder 541 can flexibly adjust the distance between the base 542 and the sunroof, and can be adaptively set according to the actual situation. The shorter the distance, the shorter the stroke of the extension 544 when it is detected.

[0085] In one embodiment, the automatic tilting device 5 further includes a positioning pin 55. The lifting seat 5211 has a first positioning hole, and the mounting bracket 51 has a second positioning hole 57. The positioning pin 55 is used to fix the position of the lifting seat 5211 when it passes through both the first positioning hole and the second positioning hole 57 simultaneously. When the device needs maintenance, the lifting seat 5211 can be locked in its rising and falling motion by simultaneously inserting the positioning pin 55 into the first positioning hole and the second positioning hole 57. When not in use, the positioning pin 55 can be fixedly placed on the mounting bracket 51.

[0086] In one embodiment, reference is made to Figure 12 and Figure 13The trolley positioning device 4 includes a guide 41 and a check mechanism 42. The guide 41 is located outside the trolley fixing position 211 and has an inlet 43. The check mechanism 42 is positioned opposite to the inlet 43. When the transport trolley 110 moves along the inlet 43 to the trolley fixing position 211, the check mechanism 42 engages with the transport trolley 110. The operator can push the transport trolley 110 from the inlet 43 along the guide 41 into the trolley fixing position 211. When pushed all the way in, the check mechanism 42 will automatically lock the transport trolley 110, thereby fixing the trolley and preventing it from moving. This ensures that when the transplanting mechanism 22 moves down to grab the skylight, it corresponds to the position of the skylight and there will be no large deviation. The main function of the trolley positioning device 4 is to position the transport trolley 110, ensuring that the transport trolley 110 is in a stable state during the automatic grasping of the skylight by the transplanter 2. It can also be equipped with sensors to enable the push-in-place detection function. When an abnormality occurs that the trolley is not pushed in place, it can provide an alarm reminder. It can also be equipped with a safety area scanner to perform entry detection, ensuring that the transplanter 2 can stop if a person accidentally enters the automatic transplanting area during the empty-fill exchange process, thereby ensuring safety during the empty-fill exchange process.

[0087] In one embodiment, reference is made to Figure 14 and Figure 15 The anti-reverse mechanism 42 includes a first mounting base 421, an anti-reverse hook 422, and a first driving member 423. The first end of the anti-reverse hook 422 is hook-shaped and is used to hook the transport trolley 110. The second end of the anti-reverse hook 422 is connected to the output end of the first driving member 423. The anti-reverse hook 422 is hinged to the first mounting base 421 at a position between its first end and second end. The first driving member 423 is used to drive the anti-reverse hook 422 to rotate. The first driving component 423 can drive the anti-reverse hook 422 to rotate on the first mounting base 421. When the transport trolley 110 enters, the end of the anti-reverse hook 422 facing the inlet 43 will hook the transport trolley 110. After all the skylights have been grabbed, the empty and full transport trolleys 110 need to be exchanged. At this time, the anti-reverse hook needs to be released from the transport trolley 110. The first driving component 423 drives the other end of the anti-reverse hook 422 to rise, while the end hooked on the transport trolley 110 will rotate downward, thus separating from the transport trolley 110. At this time, the operator can pull out the transport trolley 110. After the new transport trolley 110 moves to the trolley fixing position 211, the first driving component 423 drives the other end of the anti-reverse hook 422 to descend, and the hook-shaped end will hook the transport trolley 110 again.

[0088] It should be understood that the end of the anti-reverse hook 422 facing the inlet 43 can be set at an angle, such as... Figure 15As shown, a tension spring can be installed between the other end and the first mounting base 421. When the transport trolley 110 enters, the transport trolley 110 will press down on the inclined surface that contacts the anti-reverse hook 422, driving the anti-reverse hook 422 to rotate. The tension spring will be stretched to accumulate elastic force. As the transport trolley 110 gradually enters and runs into position, the transport trolley 110 gradually separates from the inclined surface of the anti-reverse hook 422. After the external force is eliminated, the tension spring releases its elastic force to drive the anti-reverse hook 422 to rotate in the opposite direction, thereby hooking the transport trolley 110. Automatic positioning of the transport trolley 110 after it enters position can be achieved through the mechanical structure. The structure is simple and easy to set up.

[0089] Reference Figure 12 and Figure 13 The number of the aforementioned check mechanism 42 is not limited to one set, but can also be two sets set at intervals, so as to make the fixation of the transport trolley 110 more secure.

[0090] In one embodiment, reference is made to Figure 13 , Figure 16 and Figure 17 The trolley positioning device 4 also includes a limiting member 44, which includes a limiting seat 441 and a lever 442. The limiting seat 441 is located outside the guide member 41, and the lever 442 is rotatably mounted on the limiting seat 441. The lever 442 is used to screw into the inlet 43 to abut against the transport trolley 110. The limiting member 44 and the check mechanism 42 can limit and fix the transport trolley 110 one in front of the other. After the operator pushes the transport trolley 110 into the trolley fixing position 211, they can easily screw the lever 442 into the inlet 43 and set it horizontally to block the exit of the transport trolley 110. When it is necessary to pull out the empty transport trolley 110, the lever 442 is rotated away from the inlet 43 to release the limitation on the transport trolley 110.

[0091] To secure the lever 442 when it is not in a limiting position, in one embodiment, a notch 4411 is provided on the limiting seat 441. The lever 442 includes an installation section 4421 and an extension section 4422 connected to each other. The extension section 4422 is used to abut against the transport trolley 110. The installation section 4421 is rotatably connected to the limiting seat 441, and simultaneously, the installation section 4421 is slidably connected to the limiting seat 441, so that the extension section 4422 can be engaged with or moved away from the notch 4411. The notch 4411 is specifically located on the upper part of the limiting seat 441. When the extension section 4422 is in an upright state, it can be engaged with the notch 4411, and the notch 4411 will hold the lever 442 in place to prevent it from falling off. When lever 442 is needed, first pull lever 442 to disengage extension section 4422 from notch 4411, then rotate extension section 4422 to make it horizontal, thereby blocking transport trolley 110.

[0092] In one embodiment, reference is made to Figure 12 and Figure 13 The guide component 41 includes two opposing guide plates 411 and a positioning seat 412. The two guide plates 411 are respectively disposed on both sides of the trolley fixing position 211, and the positioning seat 412 is disposed opposite to the inlet 43. The side of the positioning seat 412 facing the inlet 43 is used to abut against the transport trolley 110. The transport trolley 110 enters the trolley fixing position 211 along the extension direction of the guide plates 411. When it moves to abut against the positioning seat 412, it means that it has reached the end and cannot move further inward. Multiple horizontally placed rollers can be provided at the top of the guide plates 411 for rolling contact with the transport trolley 110, which limits and guides movement while reducing mutual friction.

[0093] It should be understood that, in this embodiment of the invention, information such as the position of each device is fed back to the control module. The control module monitors the feedback information and, through a set conditional program, determines whether the current command has been completed or whether the equipment is functioning properly. Simultaneously, it determines whether there is any interference between each device or component of the sunroof assembly line 100. Specifically, the following steps are performed:

[0094] If the device is determined to be functioning normally, the command can continue to be executed;

[0095] If the equipment is found to be abnormal, such as overload, safety sensor alarm, or low air pressure, the equipment should automatically stop and sound an alarm. After the alarm is cleared, the current command should continue to be executed.

[0096] If it is determined that the current command has been completed, the next command can be executed.

[0097] If the current command is not completed, it will continue to execute. If the maximum cycle time set for the command is exceeded, the device should automatically stop and issue an alarm. After the alarm is cleared, the current command will continue to execute.

[0098] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A sunroof assembly line, characterized in that, include: Preparation table; A transplanter includes a support frame and a transplanting mechanism, the transplanting mechanism being slidably mounted on the support frame, the support frame having a trolley fixing position for placing a transport trolley, and the transplanting mechanism for grabbing a skylight and moving the skylight to the preparation table; A trolley positioning device has an inlet and is used to fix a transport trolley located at the trolley fixing position. The mounting machine is used to pick up the sunroof from the preparation table and mount the sunroof to the sunroof mounting position; The control module is communicatively connected to both the transplanter and the carrier. The transport trolley is equipped with a sunroof support component, which includes a support frame and multiple sets of support blocks. Each support block is rotatably connected to the support frame. The multiple sets of support blocks are spaced vertically for holding multiple sunroofs. The sunroof assembly line also includes an automatic flipping device that is communicatively connected to the control module. The automatic flipping device includes a mounting frame, a moving mechanism, and a clamping component. The moving mechanism includes a lifting assembly, a translation assembly, and a rotation assembly that are communicatively connected to the control module. The lifting assembly includes a lifting seat and a drive component that is communicatively connected to the control module. The lifting seat is flexibly connected to the mounting frame, and the drive component is drively connected to the lifting seat and is used to drive the lifting seat to rise or fall. The translation assembly is mounted on the lifting seat, and the rotation assembly is mounted on the translation assembly. The translation assembly is used to drive the rotation assembly to move horizontally to move closer to or away from the support blocks. The clamping component is connected to the rotation assembly and is communicatively connected to the control module. The rotation assembly is used to drive the clamping component to rotate, thereby flipping the support block held by the clamping component.

2. The sunroof assembly line as described in claim 1, characterized in that, The transplanting mechanism includes a walking component, a lifting component, a rotating component, and a gripping component, all of which are communicatively connected to the control module. The lifting component is slidably suspended on the top of the support frame. The walking component drives the lifting component to move. The rotating component is installed at the bottom of the lifting component. The gripping component is rotatably connected to the rotating component. The lifting component drives the rotating component and the gripping component to rise or fall. The rotating component drives the gripping component to rotate. The gripping component is used to grip the skylight.

3. The sunroof assembly line as described in claim 2, characterized in that, The rotating component includes a first rotating drive, a connecting rack, and a gear. The first rotating drive is mounted on the lifting component and is communicatively connected to the control module. The gear is rotatably mounted on the bottom of the lifting component, and the connecting rack is slidably mounted on the bottom of the lifting component. The connecting rack meshes with the gear. The first rotating drive is used to drive the connecting rack to move. The gripping component is connected to the gear.

4. The sunroof assembly line as described in claim 1, characterized in that, The transplanter also includes a track interference handling mechanism, which comprises: A cantilever assembly includes a translation drive, a frame, and a movable frame, wherein the frame is used to connect to the support frame, the movable frame is slidably connected to the frame, and the translation drive is communicatively connected to the control module. A guide rail assembly is installed on the movable frame. The transplanting mechanism is slidably connected to the guide rail assembly. The translation drive is used to drive the movable frame to move, so as to cause the guide rail assembly to extend or retract from the support frame.

5. The sunroof assembly line as described in claim 4, characterized in that, The frame has a receiving groove, and the movable frame includes a connecting plate, a sliding plate that is connected to the connecting plate and extends downward, and a mounting part. The sliding plate extends into the receiving groove and is slidably connected to the frame, and the mounting part is connected to the guide rail assembly.

6. The sunroof assembly line body as described in any one of claims 1 to 5, characterized in that, The trolley positioning device includes a guide and a check mechanism. The guide is located outside the trolley fixed position and has an inlet. The check mechanism is located opposite to the inlet. When the transport trolley moves along the inlet to the trolley fixed position, the check mechanism engages with the transport trolley.

7. The sunroof assembly line as described in claim 6, characterized in that, The anti-reverse mechanism includes a first mounting base, an anti-reverse hook, and a first driving member. The first end of the anti-reverse hook is hook-shaped and used to hook the transport trolley. The second end of the anti-reverse hook is connected to the output end of the first driving member. The anti-reverse hook is hinged to the first mounting base at a position between its first end and second end. The first driving member is used to drive the anti-reverse hook to rotate.

8. The sunroof assembly line as described in claim 6, characterized in that, The trolley positioning device further includes a limiting component, which includes a limiting seat and a lever. The limiting seat is disposed on the outside of the guide component, and the lever is rotatably mounted on the limiting seat. The lever is used to screw into the inlet and abut against the transport trolley.

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