Vehicle-mounted connection unit continuous flow assembly system

Abstract

The application discloses a kind of vehicle-mounted connection unit continuous flow assembly systems, including first equipment, second equipment, third equipment and fourth equipment;First equipment is used to fix screw to shell, form assembled screw semi-finished product, second equipment is used to provide shell to first equipment, temporary store semi-finished product, semi-finished product after heat treatment is temporarily stored, and provide heat-treated semi-finished product to third equipment, fourth equipment is used to heat treat semi-finished product temporarily stored by second equipment, third equipment is used to assemble sealing ring and clip on semi-finished product after heat treatment;The conveying line of second equipment is U-shaped, and includes A line, C line and B line in turn;C line is provided with shell loading position for loading shell to empty tray;The free end of A line and B line is respectively provided with A turnover module and B turnover module, and the turnover box of A turnover module is used to temporarily store semi-finished product, and the turnover box of B turnover module is used to temporarily store semi-finished product after heat treatment.

Description

Technical Field

[0001] This invention belongs to the field of vehicle-mounted connection unit manufacturing technology, and specifically relates to a continuous flow assembly system for vehicle-mounted connection units. Background Technology

[0002] The housing of the vehicle-mounted connector unit is typically an insulated part, and its surface must be protected from damage during assembly. To facilitate installation and fixation during use, the vehicle-mounted connector unit usually comes with screws. However, the process of fixing the housing to the screws during assembly requires specific process design. Currently, the fixation of the housing to the screws in the developed vehicle-mounted connector unit requires adhesive application followed by heat treatment, which typically takes several hours. This presents a problem where the assembly cycle time of the vehicle-mounted connector unit is incompatible with the heat treatment time. Therefore, how to achieve the assembly and production of such vehicle-mounted connector units through a continuous production system is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a continuous flow assembly system for vehicle-mounted connection units to solve the aforementioned problems in the prior art.

[0004] The technical solution adopted in this invention is as follows: a continuous flow assembly system for vehicle-mounted connection units, including a first device, a second device, a third device, and a fourth device. The first device, the second device, and the third device are arranged sequentially along the system's operating direction, and the fourth device is located outside the first device, the second device, and the third device. The first device is used to fix screws to the housing to form a semi-finished product with assembled screws. The second device is used to provide the housing to the first device, temporarily store the semi-finished product, temporarily store the heat-treated semi-finished product, and provide the heat-treated semi-finished product to the third device. The fourth device is used to heat-treat the semi-finished product temporarily stored by the second device. The third piece of equipment is used to assemble sealing rings and clips on the heat-treated semi-finished products; the second piece of equipment includes a tray for carrying the shell, a conveyor line for conveying the tray, and a turnover box for holding multiple trays; the conveyor line is U-shaped and includes line A, line C and line B connected in sequence; line C is provided with a shell loading position for loading the shell onto an empty tray; the free ends of line A and line B are respectively provided with turnover module A and turnover module B, and both turnover module A and turnover module B are provided with the turnover box, the turnover box of turnover module A is used to temporarily store the semi-finished products, and the turnover box of turnover module B is used to temporarily store the heat-treated semi-finished products.

[0005] As a further optional solution, an A storage module is provided at the end of line A away from the A turnover module. The A storage module is also equipped with the turnover box for temporarily storing the pallet containing the shell after passing through the shell loading position. A B storage module is provided at the end of line B away from the B turnover module. The B storage module is also equipped with the turnover box for temporarily storing the empty pallets after the semi-finished products are transferred away on line B.

[0006] As a further optional solution, an A-offset material feeding module located below the A-line is provided at the end of the A-line near the A-storage module. This module is used to feed trays from the C-line onto the A-line, feed trays from the C-line into the A-storage module, and remove trays from the A-storage module and feed them onto the A-line. Similarly, a B-offset material feeding module located below the B-line is provided at the end of the B-line near the B-storage module. This module is used to feed trays from the B-line into the B-storage module, feed trays from the B-line onto the C-line, and remove trays from the B-storage module and feed them onto the C-line.

[0007] As a further optional solution, both the A-positioned material feeding module and the B-positioned material feeding module include a conveyor belt with a lifting mechanism and a feeding component that reciprocates along the conveying directions of lines A and B. The conveying direction of the conveyor belt is the same as and corresponds to line C. The feeding component of the A-positioned material feeding module is used to drive the pallet to reciprocate between line A and the turnover box of the A storage module, and the feeding component of the B-positioned material feeding module is used to drive the pallet to reciprocate between line B and the turnover box of the B storage module. The feeding component includes a hook for hooking the pallet, and the hook is lifting mechanism.

[0008] As a further optional solution, the turnover box has a pallet conveying port on one side facing the conveyor line and a box door on the other side; multiple support components are longitudinally spaced inside the turnover box to support the pallet, and the support components include two support bars, which are respectively fixed on opposite sides inside the turnover box.

[0009] As a further optional solution, the A turnover module, B turnover module, A storage module and B storage module all include a lifting frame with lifting mechanism for carrying turnover boxes, and the lifting frame is provided with a number of rollers on the support surface of the turnover box.

[0010] As a further optional solution, both Line A and Line B include a flow channel and a hooking module located below the flow channel. The hooking module is used to drive the pallet to move back and forth on the flow channel. The hooking module of Line A is also used to send the pallet on Line A into the A turnover module, and the hooking module of Line B is also used to take the pallet out of the B turnover module and put it onto Line B.

[0011] As a further optional solution, the hooking module includes a hooking component and a hooking drive component that drives the hooking component to reciprocate along the flow channel. The hooking component includes multiple hooks for hooking the tray, and the hooks are all liftable and distributed in front of and behind the flow channel in the conveying direction.

[0012] As a further optional solution, the material position on the shell is provided with a manual loading platform located above line C. The manual loading platform has a loading port, the size of which is not smaller than the tray. Above the loading port is a material holding box for holding the shell, and the material holding box is slidably disposed on the manual loading platform.

[0013] As a further optional solution, line A is equipped with a robot arm for transferring the shells on the line A tray to the first device and transferring the semi-finished products assembled by the first device back to the line A tray; line B is equipped with a robot arm for transferring the semi-finished products on the line B tray to the third device.

[0014] The continuous production process of the system of this invention is as follows: Empty pallets are placed on the housing loading positions. Housings are placed onto the pallets manually or by a robotic arm and conveyed to line A. The housings on the pallets on line A are then transferred to the first device for screw installation and fixation. After installation, they are placed back onto the same pallet on line A. Pallets containing semi-finished products are conveyed via line A to the turnover boxes of turnover module A for temporary storage. After a certain quantity is stored, the turnover boxes containing semi-finished products are transferred to the fourth device for heat treatment, and an empty turnover box is replaced and sent to turnover module A. Turnover boxes containing heat-treated semi-finished products are transported to turnover module B. The pallets in the turnover boxes are conveyed to line B, and the semi-finished products on the pallets on line B are transferred to the third device for assembling the sealing rings and clips of the vehicle-mounted connecting unit. After all transfers, the empty pallets flow back from line B to line C, and the above actions are repeated. When all pallets in the turnover boxes of turnover module B have been conveyed, turnover boxes containing the heat-treated semi-finished products from the fourth device can be transported back to turnover module B.

[0015] The beneficial effects of this invention are as follows: Through the ingenious design and layout of the second equipment structure, and the overall system layout, the system can continue assembly and production even after the housing of the vehicle-mounted connecting unit is fixed with screws and sent for heat treatment to remove air from the adhesive. This eliminates the need to wait for heat treatment time and to set up a separate production line for fixing the housing and screws and for heat treatment, which would not only make the production line more cumbersome and space-consuming but also require storing a large amount of semi-finished products. The second equipment enables the loading of the housing, the loading and unloading of the first equipment, and the loading of the third equipment. It also enables the conveying and circulation of pallets carrying housings / semi-finished products / empty products, as well as the collection, temporary storage, and turnover of semi-finished products. Furthermore, it coordinates the production rhythm of the fourth equipment with other equipment. At the same time, the loading, conveying, turnover, and temporary storage aspects also prevent damage to the housing surface during the entire production process. This ingenious, reliable, and efficient continuous production system achieves the assembly and production of this vehicle-mounted connecting unit. Attached Figure Description

[0016] Figure 1 This is a top view of the vehicle-mounted connection unit continuous flow assembly system provided in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the second device provided in an embodiment of the present invention;

[0018] Figure 3 yes Figure 2 A partial schematic diagram below the flow channel of line A; line B is the same.

[0019] Figure 4 yes Figure 2 A schematic diagram of the structure of line C in the middle;

[0020] Figure 5 yes Figure 2 The exploded view of the A turnover module is shown below. The B turnover module, A storage module, and B storage module are the same.

[0021] In the diagram: 1-First equipment; 2-Second equipment; 3-Third equipment; 4-Fourth equipment; 5-Pattern; 6-Turnover box; 7-Line A; 8-Line B; 9-Line C; 10-Shell loading position; 11-A Turnover module; 12-B Turnover module; 13-Roller; 14-A Robotic arm; 15-B Robotic arm; 16-A Storage module; 17-B Storage module; 18-A Offset material feeding module; 19-B Offset material feeding module; 20-Conveyor belt; 21-Hook; 22-Pattern conveying port; 23-Box door; 24-Support bar; 25-Lifting frame; 26-Hook assembly; 27-Hook drive; 28-Material hook; 29-Positioning pin; 30-Manual loading platform; 31-Loading port; 32-Material container; 33-Outer frame. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The technical solutions provided by the present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the descriptions of these embodiments are for the purpose of helping to understand the present invention, but do not constitute a limitation thereof. In some examples, because some implementation methods are existing or conventional technologies, they are not described or are not described in detail.

[0024] Furthermore, the technical features described herein, or the steps in all the methods or processes disclosed herein, may be combined in any suitable manner in one or more embodiments, except for mutually exclusive features and / or steps. It will be readily understood by those skilled in the art that the order of steps or operations of the methods relating to the embodiments provided herein may also be altered. Any order in the drawings and embodiments is for illustrative purposes only and does not imply a requirement to follow a particular order unless explicitly stated otherwise.

[0025] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, under reasonable circumstances (without self-contradiction), include both direct and indirect connections (linkages).

[0026] This system is primarily used for assembling automotive connection units that utilize adhesive dispensing processes. It is particularly suitable for processes where heat treatment is required after dispensing to eliminate air bubbles in the adhesive. These automotive connection units typically include: a housing, screws, sealing rings, and clips. Adhesive is applied during the fixing of the housing and screws; air bubbles within the adhesive must be removed through heat treatment before the sealing rings and clips are installed.

[0027] Figures 1 to 5 This invention illustrates a continuous flow assembly system for an on-board connection unit, comprising a first device 1, a second device 2, a third device 3, and a fourth device 4. The first device 1, second device 2, and third device 3 are sequentially arranged along the system's operating direction, and the fourth device 4 is located outside the first device 1, second device 2, and third device 3. The first device 1 is used to fix screws to a housing, forming a semi-finished product with assembled screws. The second device 2 is used to provide the housing, temporarily store the semi-finished product, temporarily store the heat-treated semi-finished product, and provide the heat-treated semi-finished product to the third device 3. The fourth device 4 is used to perform heat treatment on the semi-finished product temporarily stored by the second device 2. The third device 3... The second device 2 is used to assemble sealing rings and clips on heat-treated semi-finished products; it includes a tray 5 for carrying the shell, a conveyor line for conveying the tray 5, and a turnover box 6 for holding multiple trays 5; the conveyor line is U-shaped and includes a line A 7, a line C 9, and a line B 8 connected in sequence; the line C 9 is provided with a shell loading position 10 for loading the shell onto the empty tray 5; the free ends of the lines A 7 and B 8 are respectively provided with a turnover module A 11 and a turnover module B 12, and both turnover modules A 11 and B 12 are provided with the turnover box 6. The turnover box 6 of the turnover module A 11 is used to temporarily store the semi-finished products, and the turnover box 6 of the turnover module B 12 is used to temporarily store the heat-treated semi-finished products.

[0028] The first device 1 can adopt an existing structure such as a turntable machine. For example, a carrier with a positioning housing is installed on the turntable, and a robot and a dispensing device are installed on the running path of the carrier. When the carrier passes the robot, the robot installs the screw into the housing inside the carrier. When the carrier passes the dispensing device, the dispensing device applies glue to the joint between the screw and the housing.

[0029] The third device 3 can adopt an existing structure, such as a carrier with a positioning housing mounted on a turntable, with at least two robotic arms installed on the running path of the carrier. The carrier passes through each robotic arm in sequence, with one robotic arm installing a sealing ring into the housing inside the carrier and the other robotic arm installing a clamp into the housing inside the carrier.

[0030] Empty pallets 5 are placed on the housing at material level 10. The housing is placed on pallets 5 manually or by a robot and conveyed to line A 7. The housing on pallets 5 of line A 7 is then transferred to the first device 1 for screw installation and fixation. After installation, it is placed back on the same pallet 5 of line A 7. Pallets 5 containing semi-finished products are conveyed to turnover boxes 6 of turnover module A 11 via line A 7 for temporary storage. After a certain number are stored, turnover boxes 6 containing semi-finished products are transferred to the fourth device 4 for heat treatment, and an empty turnover box 6 is replaced and sent to turnover module A 11. Turnover boxes 6 containing heat-treated semi-finished products are transported to turnover module B 12. Pallets 5 in turnover boxes 6 are conveyed to line B 8. The semi-finished products on pallets 5 of line B 8 are then transferred to the third device 3 for assembly of the sealing rings and clips of the vehicle connection unit. After all transfers are completed, empty pallets 5 flow back from line B 8 to line C 9, and the above actions are repeated. After all the pallets 5 in the turnover box 6 of turnover module B are transported out, the turnover box 6 containing the semi-finished products after heat treatment by the fourth equipment 4 can be transported to turnover module B 12. The second equipment 2 realizes the feeding of the shell, the feeding and unloading of the first equipment 1, and the feeding of the third equipment 3. It also realizes the transportation and circulation of the pallets 5 carrying shells / semi-finished products / empty pallets, as well as the collection, temporary storage and turnover of semi-finished products, and coordinates the production rhythm of the fourth equipment 4 and other equipment assembly.

[0031] Each pallet 5 can carry the housings of multiple vehicle-mounted connection units, specifically with multiple rows and columns of housing placement slots. The conveyor line provides a flow channel for the pallets 5, and rollers 13 supporting the pallets 5 are provided on both sides of the flow channel. Line A 7 and line B 8 can be perpendicular to the system's operating direction, with line A 7 corresponding to the side of the first device 1 and line B 8 corresponding to the side of the third device 3. Line A 7 may be equipped with an A robot 14, which is used to transfer the housing on the tray 5 of Line A 7 to the first device 1. After the first device 1 fixes the housing and screws with adhesive, a semi-finished product of the vehicle connection unit is formed. The A robot 14 then transfers the semi-finished product back to the tray 5 of Line A 7. After the tray 5 is full of semi-finished products, it is transported to the turnover box 6 of the A turnover module 11 for temporary storage. Line B 8 may be equipped with a B robot 15, which is used to transfer the semi-finished products on the tray 5 of Line B 8 to the third device 3. That is, when the tray 5 (containing the heat-treated semi-finished products) in the turnover box 6 of the B turnover module 12 enters Line B 8, the B robot 15 transfers the semi-finished product from Line B 8 to the third device 3 for subsequent installation of the sealing ring and clip of the vehicle connection unit.

[0032] A storage module 16 is provided at the end of line A 7 away from A turnover module 11. A storage module 16 is also provided with the turnover box 6 for temporarily storing the pallet 5 containing the shell after passing through the shell loading position 10. A storage module 17 is provided at the end of line B 8 away from B turnover module 12. B storage module 17 is also provided with the turnover box 6 for temporarily storing the empty pallet 5 after the semi-finished products are transferred away on line B 8. When no one is loading shells (filling empty pallets 5) at shell loading station 10, line C 9 temporarily stops operating. The entire system can supply pallets 5 containing shells to line A 7 via storage module A 16, and collect and store empty pallets 5 after semi-finished products have been transferred via storage module B 17. This allows assembly production to continue automatically. Conversely, when someone is loading shells at shell loading station 10, line C 9 operates normally, supplying pallets 5 containing shells to line A 7. During shell and semi-finished product transfers on line A 7, shell loading station 10 does not need to wait and can continue loading shells, continuously supplying line A 7 with empty pallets 5 containing shells. Pallet 5 can then be temporarily stored in storage module A 16. The time for product transfer between line A 7 and the first equipment 1 does not need to match the loading time of the housing loading position 10. The number of pallets 5 loaded at the housing loading position 10 of line C 9 can be determined based on the overall storage situation of the equipment. It can supply line A 7 while storing excess pallets 5 in storage module A 16. This ensures continuous supply to line A 7 without slowing down the working rhythm of line C 9. At this time, both line B 8 and storage module B 17 can provide empty pallets 5 to line C 9. When the empty pallets 5 returning from line B 8 are insufficient to supply line C 9, storage module B 17 will supply them to line C 9. This ingenious method achieves efficient continuous conveying and product transfer assembly on a single conveyor line, while maintaining independent rhythms, thus coordinating the rhythms of each station within the second equipment 2. It also eliminates the need for continuous manual loading, integrating and transforming fully automatic and semi-automatic processes.

[0033] In some embodiments, an A-offset feeding module 18 located below the A-line 7 may be provided at one end of the A-line 7 near the A-storage module 16. This module is used to feed the pallet 5 from the C-line 9 onto the A-line 7, feed the pallet 5 from the C-line 9 into the A-storage module 16, and remove the pallet 5 from the A-storage module 16 and feed it onto the A-line 7. A B-offset feeding module 19 located below the B-line 8 may be provided at one end of the B-line 8 near the B-storage module 17. This module is used to feed the pallet 5 on the B-line 8 into the B-storage module 17, feed the pallet 5 on the B-line 8 onto the C-line 9, and remove the pallet 5 from the B-storage module 17 and feed it onto the C-line 9. By integrating the above conveying functions through the offset feeding modules on both sides, the aforementioned continuous conveying and feeding production process can be realized simply and efficiently without affecting each other.

[0034] Both the A-position offset feeding module 18 and the B-position offset feeding module 19 include a conveyor belt 20 with a lifting mechanism and feeding components that reciprocate along the conveying directions of line A 7 and line B 8. Specifically, the feeding components of the A-position offset feeding module 18 reciprocate along the conveying direction of line A 7, and the feeding components of the B-position offset feeding module 19 reciprocate along the conveying direction of line B 8. The conveying direction of the conveyor belt 20 is the same as and corresponds to line C 9; that is, the two ends of line C 9 correspond to lines A 7 and B 8 respectively. The conveyor belts 20 of the misaligned material feeding module 18 and B misaligned material feeding module 19 are as follows: The feeding component of the A misaligned material feeding module 18 is used to drive the pallet 5 to reciprocate between line A 7 and the turnover box 6 of storage module A 16; the feeding component of the B misaligned material feeding module 19 is used to drive the pallet 5 to reciprocate between line B 8 and the turnover box 6 of storage module B 17; the feeding component includes a hook 21 for hooking the pallet 5, and the hook 21 is designed for lifting. Multiple hooks 21 can be provided; this embodiment uses two as an example, both set on the same side. Existing linear drive mechanisms such as lead screws and nuts can be used to drive the reciprocating movement of the feeding component and the lifting of the conveyor belt 20. The height of the pallet 5 at line C 9 can be higher than that of line A 7 and line B 8.

[0035] When pallet 5 from line C 9 flows to line A 7, the conveyor belt 20 of the A misaligned material feeding module 18 rises to the height of line C 9, pallet 5 flows onto the conveyor belt 20, the conveyor belt 20 descends, and pallet 5 falls into the flow channel of line A 7. When it is necessary to continue conveying along line A 7 for subsequent product assembly and transfer, the conveyor belt 7 continues to convey. When it is necessary to enter the A storage module 16 for storage, the hook 21 of the feeding component rises and engages with pallet 5, driving pallet 5 into the turnover box 6 of the A storage module 16. The hook 21 descends, and the feeding component returns to its original position. When an empty pallet 5 from line B 8 needs to flow to line C 9, the conveyor belt 20 of the B misalignment feeding module 19 below line B 8 rises, lifting the pallet 5 to the position of line C 9, allowing the pallet 5 to flow into line C 9. When an empty pallet 5 needs to be supplied to line C 9 by the B storage module 17, the feeding component moves to the bottom of the pallet 5 in the turnover box 6 of the B storage module 17, the hook 21 rises and engages the pallet 5, driving the pallet 5 away from the turnover box 6 and onto line B 8. After the hook 21 descends, the conveyor belt 20 rises again to lift the pallet 5 to the position of line C 9, allowing the pallet 5 to flow into line C 9.

[0036] The turnover box 6 has a pallet 5 conveying port on one side facing the conveyor line to facilitate the transfer of pallets 5 between lines A 7 and B 8. The other side has a door 23 to isolate manual operation during machine operation. Multiple support components are longitudinally spaced inside the turnover box 6 to support the pallets 5. Each support component includes two support bars 24, fixed to opposite sides inside the turnover box 6. The support on both sides exposes most of the pallet 5 for easy transfer. Turnover modules A 11, B 12, A 16, and B 17 all include lifting frames 25 for supporting the turnover boxes 6. Several rollers can be installed on the support surface of the lifting frame 25 corresponding to the turnover box 6 to facilitate the entry and exit of the turnover box 6. The lifting frame 25 lifts and lowers the turnover box 6, ensuring that the pallets 5 to be transferred are aligned with the height of the conveyor line, thus completing the sequential transfer of all pallets 5 within the turnover box 6. An outer frame 33 can be installed on the outside of the lifting frame 25. The lifting frame 25 is installed in the outer frame 33 and can be lifted and lowered by a drive mechanism such as a screw and nut.

[0037] Both lines A (7) and B (8) include flow channels and hooking modules located below the flow channels. The hooking modules are used to move the pallets 5 back and forth on the flow channels. The hooking module of line A (7) is also used to send the pallets 5 on line A (7) into the A turnover module 11, and the hooking module of line B (8) is also used to remove the pallets 5 from the B turnover module 12 and transfer them to line B (8). The hooking method facilitates both the transport of pallets 5 on the lines and the transfer of pallets 5 between the lines and the turnover boxes 6. The material hooking module may include a material hooking assembly 26 and a material hooking drive component 27 that drives the material hooking assembly 26 to reciprocate along the flow channel. The material hooking drive component 27 may be a belt or other device that can drive its reciprocating movement. The material hooking assembly 26 includes multiple hooks 28 for hooking the tray 5. All hooks 28 are liftable and are distributed in front and behind the flow channel in the conveying direction. For example, after the front hook 28 drives the tray 5 to move a fixed distance, the rear hook 28 drives the tray 5 to move a fixed distance. In this way, the hooks 28 distributed in front and behind alternately convey the tray 5, which can shorten the overall movement stroke of the material hooking assembly 26, reduce the space occupied by the material hooking drive component 27, and facilitate the layout of the staggered material shifting module, making the overall system structure compact and the layout reasonable. In this embodiment, two hooks 28 are set in front and behind respectively. All hooks 28 are installed on a base plate. Both the hooks 28 and the shifting hooks 21 may be provided with hook grooves corresponding to the protrusions of the tray 5, so as to engage and drive the tray 5 to move.

[0038] Both Line A 7 and Line B 8 can be equipped with multiple pallet 5 positioning components along the line body. Each pallet 5 positioning component includes two liftable positioning pins 29 for positioning the pallet 5. On the one hand, this ensures that the position of the pallet 5 is always accurate, ensuring that the hook grooves of the material hooks 28 and the pull hooks 21 can be aligned with the protruding edges of the pallet 5 for transporting the pallet 5. On the other hand, the accurate positioning of the pallet 5 ensures that the A robot 14 and the B robot 15 can accurately transfer all products on the pallet 5.

[0039] The shell loading position 10 is equipped with a manual loading platform 30 located above line C 9. The manual loading platform 30 has a loading port 31, the size of which is not smaller than that of the tray 5. Above the loading port 31 is a material holding box 32 for holding the shell, which is slidably mounted on the manual loading platform 30. The size of the material holding box 32 is larger than that of the loading port 31. By sliding the material holding box 32, it can be moved closer to the person, making it convenient for the person to pour the shell material into the material holding box 32. When loading material onto the tray 5, the material holding box 32 can be slid away to expose the tray 5 on line C 9 below. When the shell loading position 10 is not in operation, the material holding box is slid above the loading port 31 to avoid the internal parts of the equipment being exposed, which could pose a safety hazard, and also facilitates dust prevention during production.

[0040] The fourth device 4 can be composed of a vacuum unit, a baking unit, and a cooling unit arranged in sequence. These units work together to optimize and control the bonding process. Specifically, the vacuum unit reduces air pressure in a sealed environment, facilitating the efficient removal of dissolved gases from the adhesive and assisting the adhesive in penetrating the microporous structure of the bonding surface, thereby improving the consistency and integrity of the filling. The baking unit uses controlled heating to cause cross-linking and curing of the adhesive, ensuring that the formed adhesive layer has the expected bonding strength and long-term durability. The cooling unit is responsible for cooling the high-temperature cured shell and screw system to near room temperature, providing suitable conditions for the subsequent operation of the third device 3. The vacuum unit, baking unit, and cooling unit are all commercially available standard industrial equipment. The transfer of pallets 5 between the devices, as well as the transfer of pallets 5 between the second device 2 and this fourth device 4, can all be accomplished using conventional forklifts, achieving practicality and integration convenience in the layout.

[0041] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. A vehicle-mounted connection unit continuous flow assembly system, characterized in that, The system includes a first device, a second device, a third device, and a fourth device, arranged sequentially along the system's operating direction. The fourth device is located outside the first, second, and third devices. The first device is used to fix screws to the housing, forming a semi-finished product with assembled screws. The second device is used to provide the housing to the first device, temporarily store the semi-finished product, temporarily store the heat-treated semi-finished product, and provide the heat-treated semi-finished product to the third device. The fourth device is used to heat-treat the semi-finished product temporarily stored by the second device. The third device is used to heat-treat the semi-finished product after heat treatment. A sealing ring and clips are assembled on the semi-finished product; the second equipment includes a pallet for supporting the shell, a conveyor line for conveying the pallet, and a turnover box for holding multiple pallets; the conveyor line is U-shaped and includes line A, line C and line B connected in sequence; line C is provided with a shell loading position for loading the shell onto an empty pallet; the free ends of line A and line B are respectively provided with turnover module A and turnover module B, and both turnover module A and turnover module B are provided with the turnover box. The turnover box of turnover module A is used to temporarily store the semi-finished product, and the turnover box of turnover module B is used to temporarily store the semi-finished product after heat treatment; The end of line A away from turnover module A is provided with storage module A, which is also provided with turnover box for temporarily storing the pallet containing the shell at the material position on the shell. A storage module B is set at the end of line B away from the turnover module B. The storage module B is also equipped with the turnover box, which is used to temporarily store empty pallets after the semi-finished products are transferred away from line B. The A line is equipped with an A-offset material feeding module located below the A line at one end near the A storage module. This module is used to feed trays from the C line onto the A line, feed trays from the C line into the A storage module, and remove trays from the A storage module and feed them onto the A line. The B line is equipped with a B-offset material feeding module located below the B line at one end near the B storage module. This module is used to feed trays from the B line into the B storage module, feed trays from the B line onto the C line, and remove trays from the B storage module and feed them onto the C line.

2. The vehicle-mounted connection unit continuous flow assembly system according to claim 1, characterized in that, Both the A-position offset material feeding module and the B-position offset material feeding module include a conveyor belt with a lifting mechanism and a feeding component that reciprocates along the conveying directions of lines A and B. The conveying direction of the conveyor belt is the same as and corresponds to line C. The feeding component of the A-position offset material feeding module is used to drive the pallet to reciprocate between line A and the turnover box of the A storage module, and the feeding component of the B-position offset material feeding module is used to drive the pallet to reciprocate between line B and the turnover box of the B storage module. The feeding component includes a hook for hooking the pallet, and the hook is lifting mechanism.

3. The vehicle-mounted connection unit continuous flow assembly system according to claim 1, characterized in that, The turnover box has a pallet conveying port on one side facing the conveyor line and a box door on the other side; multiple support components are arranged longitudinally at intervals inside the turnover box to support the pallet. The support components include two support bars, which are fixed on opposite sides inside the turnover box.

4. The vehicle-mounted connection unit continuous flow assembly system according to claim 1, characterized in that, The A turnover module, B turnover module, A storage module, and B storage module all include a lifting frame with a lifting mechanism for supporting the turnover boxes. The lifting frame has several rollers on the support surface corresponding to the turnover boxes.

5. The vehicle-mounted connection unit continuous flow assembly system according to claim 1, characterized in that, Both Line A and Line B include a flow channel and a hooking module located below the flow channel. The hooking module is used to drive the pallet to move back and forth on the flow channel. The hooking module of Line A is also used to send the pallet on Line A into the A turnover module, and the hooking module of Line B is also used to take the pallet out of the B turnover module and put it onto Line B.

6. The vehicle-mounted connection unit continuous flow assembly system according to claim 5, characterized in that, The material hooking module includes a material hooking component and a material hooking drive component that drives the material hooking component to reciprocate along the flow channel. The material hooking component includes multiple material hooks for hooking the tray. All material hooks are liftable and are distributed in front of and behind the flow channel in the conveying direction.

7. The vehicle-mounted connection unit continuous flow assembly system according to claim 1, characterized in that, The shell is equipped with a manual loading platform located above line C. The manual loading platform has a loading port, the size of which is not smaller than the tray. Above the loading port is a material holding box for holding the shell, which is slidably mounted on the manual loading platform.

8. The vehicle-mounted connection unit continuous flow assembly system according to claim 1, characterized in that, Line A is equipped with a robotic arm A, used to transfer the shells on the tray of Line A to the first device, and to transfer the semi-finished products assembled by the first device back to the tray of Line A; Line B is equipped with a robotic arm B, used to transfer the semi-finished products on the tray of Line B to the third device.

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