Vehicle chassis integral assembling system

Abstract

The utility model discloses a vehicle chassis integral assembling system, and relates to the technical field of vehicle chassis integral assembling systems, the vehicle chassis integral assembling system comprises an assembling elevator and an air spring assembling assembly; the air spring combination assembly comprises a supporting frame body and a first air spring moving part arranged on the supporting frame body in a sliding mode. The supporting frame body is arranged on the peripheral side of the combined elevator; the first air spring moving part is provided with an air spring clamping position used for clamping an air spring to be assembled. And the combination elevator is connected with one end of the first air spring moving part and used for driving the first air spring moving part to move to a target mounting position in the direction close to the to-be-assembled vehicle body, and then combination of the to-be-assembled air spring and the to-be-assembled vehicle body is achieved. By means of the system, the overall assembling efficiency and assembling quality of the chassis can be effectively improved.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of vehicle chassis integral assembly system, and in particular to a vehicle chassis integral assembly system. Background Art

[0002] Chassis assembly in traditional automobile factories usually uses manual assembly, semi-automatic assembly, and automatic assembly with purely mechanical structure positioning.

[0003] With the development of new energy vehicle technology and the increasing requirements of consumers for product functions and comfort, most new energy vehicle models now use front air springs. Due to product design and structural reasons, it is much more difficult to achieve fully automatic assembly of the chassis of models equipped with air springs, so semi-automatic assembly is more commonly used.

[0004] However, for the chassis of vehicles equipped with front air springs, the air spring is not inflated before assembly. If the air spring is still transported by a skid tray, the posture of the air spring is not fixed. Therefore, most of the assembly of the chassis depends on the manual assistance of technicians to adjust the posture of the front air spring, which will lead to high labor intensity and waste of human resources. To this end, we propose a vehicle chassis assembly system. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a vehicle chassis integral assembly system that saves time and effort and has precise assembly.

[0006] The present application provides a vehicle chassis integral assembly system, which is used to assemble a vehicle body to be assembled and a chassis to be assembled; wherein the chassis to be assembled includes at least an empty spring to be assembled;

[0007] The assembly system comprises: an assembly elevator and an empty spring assembly assembly;

[0008] The empty spring assembly assembly comprises: a support frame and a first empty spring moving part slidably arranged on the support frame; the support frame is arranged on the periphery of the assembly elevator;

[0009] The first empty spring moving part has an empty spring clamping position for clamping the empty spring to be assembled;

[0010] The assembly elevator is connected to one end of the first empty spring moving part, and is used to drive the first empty spring moving part to move to a target installation position in a direction close to the vehicle body to be assembled, thereby realizing the assembly of the empty spring to be assembled and the vehicle body to be assembled.

[0011] According to the technical solution provided by the present application, the first empty spring moving part includes:

[0012] A follower main frame and a connecting main frame arranged on the follower main frame; the follower main frame is connected to the assembly lift; the connecting main frame is slidably connected to the support frame body;

[0013] The follower main frame moves under the drive of the assembly elevator, thereby driving the connecting main frame to move along the first direction; the empty spring clamping position is formed on the connecting main frame.

[0014] According to the technical solution provided in the present application, the empty spring assembly further includes: a second empty spring moving part, the second empty spring moving part is arranged on the top of the connecting main frame;

[0015] The second empty spring moving part comprises: two transmission structures whose transmission directions are perpendicular to each other and an empty spring supporting plate arranged on the two transmission structures;

[0016] The empty spring support plate is provided with an empty spring clamping piece, and the empty spring clamping piece is used to clamp the empty spring to be assembled; the two transmission structures are used to drive the empty spring clamping piece to move along the second direction and the third direction respectively;

[0017] The second direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

[0018] According to the technical solution provided in the present application, the empty spring clamp comprises: a first clamp and a second clamp that cooperate with each other and a telescopic member that drives the two clamps to swing;

[0019] The empty spring clamping position is formed between the first clamp and the second clamp; the clamp bodies of the first clamp and the second clamp both have an arc-shaped curved portion;

[0020] Among them, a limit block is also arranged on the empty spring support plate, and the arc-shaped curved parts of the first clamp and the second clamp are movably connected with the limit block through a pin shaft. The arc-shaped curved parts swing around the pin shaft under the drive of the telescopic part, thereby controlling the opening and closing of the empty spring clamp.

[0021] According to the technical solution provided in the present application, the assembly system includes: a sling and a skid that cooperate with the assembly lift;

[0022] The hoist is used to lift the vehicle body to be assembled to the assembly station; the assembly elevator is arranged below the hoist; the sled is used to carry the chassis parts to be assembled in the chassis to be assembled; the sled can be moved onto the assembly elevator and move to the target height with the assembly elevator to complete the assembly of the vehicle body to be assembled and the chassis parts to be assembled.

[0023] According to the technical solution provided in the present application, the assembly system includes: a first fixing component, the first fixing component is used to fix the position of the spreader;

[0024] The first fixing assembly comprises: a plurality of vertical frames, each of which is arranged at the assembly station and evenly distributed around the assembly elevator, a transmission fixing structure is arranged on the top of the vertical frame, and the transmission fixing structure has a retractable fixing end;

[0025] When the fixed end is in the extended state, the fixed end extends into the fixing hole on the sling to achieve the fixation of the sling.

[0026] According to the technical solution provided in the present application, the assembly system further includes: a first positioning assembly, the first positioning assembly being used to locate the position of the slide on the assembly elevator;

[0027] The first positioning component is arranged on the assembly elevator, and the first positioning component includes: a first transmission positioning structure, the first transmission positioning structure has a retractable first positioning end; when the first positioning end is in an extended state, the first positioning end extends into the first positioning hole on the slide to realize the positioning of the slide.

[0028] According to the technical solution provided in this application, the assembly system further includes:

[0029] A fully assembled detection component, wherein the fully assembled detection component is arranged on the fully assembled elevator;

[0030] The assembly detection component includes: a second transmission positioning structure, the second transmission positioning structure has a detection end; driven by the assembly elevator, the detection end extends into the second positioning hole on the body to be assembled to realize assembly detection of the body to be assembled.

[0031] According to the technical solution provided in this application, the combined system further includes: a mobile monitoring component;

[0032] The mobile monitoring component includes: a laser ranging unit and an AI visual guidance unit;

[0033] The laser ranging unit and the AI ​​visual guidance unit cooperate with the empty spring assembly component, the first fixing component, the first positioning component and the assembly detection component to collect the position information of the transmission fixing structure, the first transmission positioning structure, the transmission structure and the second transmission positioning structure.

[0034] According to the technical solution provided in the present application, the assembly system further includes: a control component, the control component is used to control the operation of the transmission fixing structure, the first transmission positioning structure, the transmission structure and the assembly elevator;

[0035] The control component is also connected to the laser ranging unit and the AI ​​visual guidance unit by signal, respectively, for receiving the position information collected by the laser ranging unit and the AI ​​visual guidance unit, and controlling the assembly elevator and the transmission structure to move the empty spring to be assembled to the target installation position according to the position information, and generating an assembly detection result.

[0036] In summary, the technical solution specifically discloses a vehicle chassis overall assembly system, the assembly system comprising: an assembly elevator and an empty spring assembly assembly; the empty spring assembly assembly comprises: a support frame and a first empty spring moving part slidably arranged on the support frame; the support frame is arranged on the surrounding side of the assembly elevator; the first empty spring moving part has an empty spring clamping position for clamping the empty spring to be assembled; the assembly elevator is connected to one end of the first empty spring moving part, and is used to drive the first empty spring moving part to move toward the direction close to the vehicle body to be assembled to the target installation position, thereby realizing the assembly of the empty spring to be assembled and the vehicle body to be assembled.

[0037] The existing automatic assembly of the chassis of the vehicle equipped with the front air spring is not fixed in position on the skid tray because the air spring is not inflated before assembly. As a result, the front air spring position is mostly adjusted by arranging technicians to perform manual assistance during the assembly of the air spring, which is time-consuming and laborious. As can be seen from the above content, the present application first utilizes the cooperation of the first air spring moving part and the assembly elevator to realize the transportation of the air spring to be assembled. At the same time, an air spring clamping position that can clamp the air spring to be assembled is formed in the first air spring moving part, thereby stabilizing the position of the air spring to be assembled and ensuring the smooth assembly of the air spring to be assembled with the vehicle body to be assembled. The system can effectively improve the assembly efficiency and assembly quality of the chassis as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0039] Figure 1 The present invention is a structural schematic diagram of a vehicle chassis integral assembly system.

[0040] Figure 2 The present invention discloses a structural intention of a hollow spring assembly component in a vehicle chassis integral assembly system.

[0041] Figure 3 This is an enlarged schematic diagram of the structure of the hollow spring assembly A in a vehicle chassis overall assembly system.

[0042] Figure 4 The present invention is a rear view of a hollow spring assembly component in a vehicle chassis integral assembly system.

[0043] Figure 5 The figure is a schematic diagram of the hoisting working condition of a hoist in a vehicle chassis integral assembly system.

[0044] Figure 6 The present invention is a schematic diagram of the operating condition of the first fixing component in a vehicle chassis integral assembly system.

[0045] Figure 7 The present invention is a schematic diagram of the structure of a first fixing component in a vehicle chassis integral assembly system.

[0046] Figure 8 The present invention is a schematic structural diagram of a first positioning component in a vehicle chassis integral assembly system.

[0047] Fig. 9 The present invention is a schematic diagram of the use of a first positioning component in a vehicle chassis integral assembly system.

[0048] Fig.10 The present invention is a structural schematic diagram of an assembly-in-place detection component in a vehicle chassis integral assembly system.

[0049] Numbers in the figure: 1. assembled lift; 2. supporting frame; 3. follow-up main frame; 4. connecting main frame; 5. empty spring support plate; 6. empty spring clamp; 61. first clamp; 62. second clamp; 63. pin shaft; 64. movable block; 7. telescopic member; 8. limit block; 9. sling; 10. slide; 11. frame; 12. fixed end; 13. first positioning end; 14. detection end; 15. first telescopic drive cylinder; 16. second telescopic drive cylinder; 17. guide rail; 18. first transmission structure; 19. second transmission structure; 20. detection member. DETAILED DESCRIPTION

[0050] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0051] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] First of all, in the automobile manufacturing process, the overall assembly of the body and chassis is a key process link, which directly affects the safety and handling performance of the automobile. With the rapid development of the automobile industry, the requirements for assembly technology are becoming higher and higher. If long-term positioning deviation occurs during the assembly process, it will cause abnormal wear of the positioning pins and their mating parts, thereby affecting the assembly accuracy of the chassis, and then affecting the delivery quality of the whole vehicle. Therefore, the assembly process requires not only high precision and fast speed, but also stable quality.

[0053] At the same time, during the assembly of the chassis and the body, the chassis to be assembled actually includes a variety of parts, such as air springs, shock absorbers, body floor, exhaust pipes or brake discs, etc. However, since the air springs are not inflated before assembly, the posture of the air springs placed on the pallet is not fixed, and the postures of different workpieces vary greatly, estimated to be more than 10 cm. Therefore, the current assembly of air springs mostly relies on technicians to manually adjust the posture of the front air spring to avoid collision and interference between the air spring and the body to be assembled during the assembly process, but this method is time-consuming and labor-intensive.

[0054] In view of this, please refer to Figure 1 The structural schematic diagram of a vehicle chassis integral assembly system provided by the present embodiment is shown, and the assembly system is used to assemble a vehicle body to be assembled and a chassis to be assembled; wherein the chassis to be assembled includes at least an empty spring to be assembled; specifically, the assembly system includes: an assembly lift 1 and an empty spring assembly assembly;

[0055] The empty spring assembly assembly comprises: a support frame 2 and a first empty spring moving part slidably arranged on the support frame 2, wherein the support frame 2 is arranged on the side of the assembly lift 1;

[0056] The first empty spring moving part has an empty spring clamping position for clamping the empty spring to be assembled;

[0057] The assembly lift 1 is connected to one end of the first empty spring moving part, and is used to drive the first empty spring moving part to move to a target installation position in a direction close to the vehicle body to be assembled, thereby realizing the assembly of the empty spring to be assembled and the vehicle body to be assembled.

[0058] In this embodiment, the assembly lift 1 is a common device in the assembly process, which is used to adjust the height of the chassis to be assembled so as to be assembled with the vehicle body to be assembled. The chassis to be assembled includes a variety of parts as mentioned above. In the implementation of this application, for the convenience of description, the chassis to be assembled is divided into the empty spring to be assembled and the chassis parts to be assembled, but in essence, the empty spring to be assembled is also a part of the chassis to be assembled.

[0059] In the empty spring assembly component, the first empty spring moving part can be moved under the drive of the assembly elevator 1. At the same time, in order to ensure the posture stability of the empty spring to be assembled, the empty spring to be assembled is clamped by setting an empty spring clamping position on the first empty spring moving part. Finally, the elevator 1 drives it to move toward the direction close to the vehicle body to be assembled to the target installation position, which eliminates the process of manually assisted assembly and further improves the assembly efficiency.

[0060] In order to facilitate understanding of the solution of the embodiment of the present application, the main components of the assembly system are first introduced. Figure 1 and Figure 5 , the assembly system includes: a sling 9 and a skid 10 that cooperate with the assembly lift 1;

[0061] The hoist 9 is used to lift the vehicle body to be assembled to the assembly station; the assembly elevator 1 is arranged under the hoist 9; the sled 10 is used to carry the chassis parts to be assembled in the chassis to be assembled; the sled 10 can be moved onto the assembly elevator 1, and move to the target height with the assembly elevator 1 to complete the assembly of the vehicle body to be assembled and the chassis parts to be assembled.

[0062] Based on the above description, in this embodiment, the assembly elevator and the empty spring assembly assembly are both arranged at the overall assembly station of the vehicle body and chassis. According to the foresight experience of assembly, it is actually possible to ensure that the components in the assembly are in suitable positions for assembly; specifically, the assembly system includes commonly used assembly equipment: a hoist 9, an assembly elevator 1 and a sled 10; the hoist 9 is a device for fixing and supporting the vehicle body to be assembled, ensuring that the vehicle body to be assembled maintains the correct position during the assembly process; the assembly elevator 1 is arranged below the hoist 9, on which are arranged a sled 10 and a tray, on which the chassis parts to be assembled in the chassis to be assembled are placed (the chassis parts to be assembled here do not include air springs, that is, the so-called empty springs to be assembled), and driven by the assembly elevator 1, the chassis parts to be assembled can be moved to the required assembly height (that is, the target height) corresponding to the vehicle body to be assembled.

[0063] Among them, the sled 10 is a device used to carry and transport the car body and chassis on the automobile production line. It is usually made of a steel or aluminum flat plate with rollers or sliders at the bottom. It can move along the preset assembly direction on the assembly elevator 1. When the chassis to be assembled and the car body to be assembled are assembled, they slide out in the direction away from the sling 9.

[0064] In a preferred embodiment, see Figure 4 The first empty spring moving part includes: a follower main frame 3 and a connecting main frame 4 arranged on the follower main frame 3; the follower main frame 3 is connected to the assembly lift 1; the connecting main frame 4 is slidably connected to the support frame body 2;

[0065] The follower main frame 3 moves under the drive of the assembly lift 1, and then drives the connecting main frame 4 to move along the first direction; a hollow spring clamping position is formed on the connecting main frame 4. Here, the first direction is the vertical direction.

[0066] The first empty spring moving part is a component that drives the empty spring to be assembled to move in the vertical direction. The follower main frame 3 is used to complete the connection with the assembly elevator 1. The support frame 2 is provided with a guide rail 17 extending along the first direction for the connection main frame 4 to slide. Therefore, during the lifting and lowering process of the assembly elevator 1, the connection main frame 4 will be driven to slide along the guide rail 17, that is, the empty spring to be assembled will be driven to move closer to the direction of the vehicle body to be assembled, so as to realize the assembly of the empty spring to be assembled and the vehicle body to be assembled.

[0067] It should be noted that the number of support frames 2 needs to be set according to the number of empty springs to be assembled. In the embodiment of the present application, a front empty spring system needs to be assembled, so empty springs (air springs) are provided on the left and right suspensions of the front empty spring system. Therefore, the number of support frames 2 needs to be selected as two, and they are respectively provided on both sides of the front body of the vehicle to be assembled.

[0068] In a preferred embodiment, see Figure 2-Figure 4 The empty spring assembly also includes: a second empty spring moving part, which is arranged on the top of the connecting main frame 4;

[0069] Since the moving installation path of the empty spring is not fixed during the assembly process of the empty spring, it is far from enough to drive the empty spring to be assembled to move in a single direction only by the first empty spring moving part. The second empty spring moving part can drive the empty spring to be assembled to move in more directions.

[0070] Specifically, the second empty spring moving part includes: two transmission structures whose transmission directions are perpendicular to each other and an empty spring supporting plate 5 arranged on the two transmission structures.

[0071] Exemplarily, the transmission structure includes a driving member and a corresponding sliding guide rail, so the servo electric cylinder structure can be directly selected, and the electric cylinder has a corresponding telescopic driving member and a corresponding sliding guide rail to drive the corresponding components thereon to move linearly; the two transmission structures are the same, and for ease of understanding, the two transmission structures can be divided into a first transmission structure 18 and a second transmission structure 19; the first transmission structure 18 is used to drive the empty spring to be assembled to move forward and backward relative to the vehicle body to be assembled; the second transmission structure 19 is used to drive the empty spring to be assembled to move horizontally toward or away from the vehicle body to be assembled.

[0072] Furthermore, an empty spring clamp 6 is provided on the empty spring support plate 5, and the empty spring clamp 6 is used to clamp the empty spring to be assembled; the two transmission structures are used to drive the empty spring clamp 6 to move along the second direction and the third direction respectively; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction; specifically, the second direction is parallel to the direction of the vehicle body to be assembled, and the third direction is perpendicular to the direction of the vehicle body to be assembled along the horizontal direction.

[0073] Among them, the installation positions of the first transmission structure 18, the second transmission structure 19, the empty spring support plate 5 and the empty spring clamp 6 are as follows: the first transmission structure 18 is arranged on the top of the connecting main frame 4, the second transmission structure 19 needs to be arranged on the first transmission structure 18, and can move with the first transmission structure 18; and the empty spring support plate 5 is arranged on the second transmission structure 19, and can also move with the second transmission structure 19; finally, the empty spring support plate 5 is provided with an empty spring clamp 6, then with the cooperation of the first transmission structure 18 and the second transmission structure 19, when the empty spring clamp 6 clamps the empty spring to be assembled, the operation of moving along the aforementioned second direction and third direction can be completed.

[0074] In a preferred embodiment, the empty spring clamp 6 includes: a first clamp 61 and a second clamp 62 that cooperate with each other and a telescopic member 7 that drives the two clamps to swing; the clamp bodies of the first clamp 61 and the second clamp 62 both have an arc-shaped bending portion; and an empty spring clamping position is formed between the first clamp 61 and the second clamp 62.

[0075] Among them, a limit block 8 is also arranged on the empty spring support plate 5, and the arc-shaped curved parts of the first clamp 61 and the second clamp 62 are movably connected with the limit block 8 through the pin shaft 63; the arc-shaped curved parts swing around the pin shaft as the center under the drive of the telescopic part 7, thereby controlling the opening and closing of the empty spring clamp 6.

[0076] Meanwhile, the first clamp 61 and the second clamp 62 have the same structure and both have an arc-shaped curved portion, which is similar to a wave-shaped structure and is movably connected to the limit block 8 at its bending inflection point.

[0077] See also Figure 3 As shown, the opening and closing methods of the empty spring clamp 6 are described below.

[0078] First, the first clamp 61 and the second clamp 62 are respectively connected to the driving end of the same telescopic member 7 through the movable block 64. It should be noted that at this time, the movable block 64 and the corresponding clamp and the telescopic member 7 are all hinged; when the empty spring clamp 6 needs to clamp the empty spring to be assembled, the telescopic member 7 is started, and the telescopic member 7 can drive the end of the movable block 64 connected to the clamp to swing outward by a certain angle through the outwardly extended driving end (this is the swing formed by the movable block 64 under the pushing action), and drive the arc-shaped curved parts of the first clamp 61 and the second clamp 62 to swing in the direction close to each other, so that the first clamp 61 and the second clamp 62 are in a closed state, clamping the empty spring to be assembled; then the opening of the empty spring clamp 6 is completed by controlling the contraction of the driving end of the telescopic member 7, and its principle will not be repeated.

[0079] In addition, based on the above-mentioned connection method, in order to ensure that the empty spring clamp 6 can provide a more stable clamping force, the limit block 8 also has a raised strip, which extends along the length direction of the clamp. At this time, the overall limit block 8 presents a structure similar to a "convex" shape; the two arc-shaped bends and the movable connection holes of the pin shaft 63 on the limit block 8 are located on both sides of the raised strip. In this way, when the first clamp 61 and the second clamp 62 swing along the pin shaft as the center, the clamp body on both sides of the bending inflection point in the arc-shaped bend can contact and engage with the raised strip, thereby providing a certain clamping force and enhancing the clamping effect of the empty spring clamp 6.

[0080] Furthermore, the first clamp 61 and the second clamp 62 can also be connected to the driving end of a telescopic member 7 respectively. The driving end of the telescopic member 7 needs to be connected to the side walls of the first clamp 61 and the second clamp 62, so that the driving ends of the two telescopic members 7 can control the two clamps to approach or move away from each other by synchronous extension or contraction, thereby realizing the opening and closing of the empty spring clamp 6.

[0081] It should be noted that the range of the opening and closing angles of the first clamp 61 and the second clamp 62 can be adjusted by a technician according to the specifications of the empty spring to be assembled.

[0082] In a preferred embodiment, see Figure 6 and Figure 7 , the assembly system further comprises: a first fixing assembly, the first fixing assembly being used to fix the position of the sling 9;

[0083] This is because the slings 9 used to carry the car bodies in the final assembly workshops of automobile factories at this stage mostly use slings with lifting and rotating functions. Because this type of sling 9 has many movable mechanisms, the accuracy of the stopping position can usually only be controlled at about ±5cm when the chassis is assembled. Therefore, when the chassis is assembled, there will be problems such as incorrect alignment, inability to effectively position and align the chassis parts with the body holes, resulting in a certain degree of line stoppage. Therefore, the first fixing component can ensure the posture stability of the body to be assembled during the assembly process by fixing the position of the sling 9. Generally, the first fixing component will be arranged with multiple circumferential directions of the sling 9 to stabilize the posture of the body to be assembled.

[0084] Specifically, the first fixing component includes: a plurality of upright frames 11, each upright frame 11 is arranged at an assembly station and is evenly distributed around the assembly elevator 1, a transmission fixing structure is arranged on the top of the upright frame 11, and the transmission fixing structure has a retractable fixing end 12; when the fixing end 12 is in an extended state, the fixing end 12 extends into the fixing hole on the sling 9 to fix the sling 9.

[0085] The stand 11 is used to support the transmission fixed structure, and its height needs to match the moving range of the sling 9. The specific needs need to be considered in combination with the actual situation and are not specifically limited here.

[0086] The transmission fixing structure is composed of a first positioning pin and a first telescopic driving cylinder 15; the first positioning pin is the fixed end 12 of the transmission fixing structure, and the telescopic operation is realized by being connected to the driving end of the first telescopic driving cylinder 15; when it is necessary to fix the posture of the sling 9, the first telescopic driving cylinder 15 can be started to drive the first positioning pin to extend into the fixing hole on the sling 9, wherein the opening position of the fixing hole is pre-opened by the technical personnel according to the assembly requirements.

[0087] In a preferred embodiment, see Figure 8 and Fig. 9 , the assembly system further comprises: a first positioning assembly, the first positioning assembly being used to position the slide 10 on the assembly lift 1;

[0088] Following the aforementioned problem of "chassis components and body holes cannot be effectively positioned and aligned", after the slide 10 slides to the specified position (determined according to the actual position of the sling 9), positioning is also required to prevent it from fluctuating; it should be noted that an induction switch for sensing the position of the slide 10 will be provided on the assembly lift 1. When it is confirmed that the slide 10 has reached the specified position, it will be positioned and fixed by the first positioning component.

[0089] Specifically, the first positioning component is arranged on the assembly elevator 1, and the first positioning component includes: a first transmission positioning structure, the first transmission positioning structure has a retractable first positioning end 13; when the first positioning end 13 is in an extended state, the first positioning end 13 extends into the first positioning hole on the slide 10 to realize the positioning of the slide 10.

[0090] The first transmission positioning structure is composed of a second positioning pin and a second telescopic driving cylinder 16; the second positioning pin is the first positioning end 13 of the first transmission positioning structure, and the telescopic operation is realized by being connected to the driving end of the second telescopic driving cylinder 16; when the sled 10 reaches the specified position, the second telescopic driving cylinder 16 can be started to drive the second positioning pin to extend into the first positioning hole on the sled 10 to complete the positioning of the sled 10, wherein the opening position of the first positioning hole is also pre-opened by the technical personnel according to the assembly requirements; since the subsequent sled 10 needs to slide away from the sling 9, the second telescopic driving cylinder 16 also needs to drive the second positioning pin to leave the first positioning hole after the assembly is completed to ensure the smooth exit of the sled 10.

[0091] In a preferred embodiment, see Fig.10 The assembly system also includes: an assembly in place detection component, which is arranged on the assembly lift 1; the assembly in place detection component is used to detect whether the body to be assembled and the chassis to be assembled are assembled in place.

[0092] Specifically, the assembly detection component includes: a second transmission positioning structure, the second transmission positioning structure has a detection end 14; the detection end 14 is driven by the assembly elevator 1 and extends into the second positioning hole on the body to be assembled to realize the assembly detection of the body to be assembled.

[0093] The second transmission fixing structure is a spring pin arranged on the assembly elevator 1, and the pin head of the spring pin is the detection end 14, which can be inserted into the second positioning hole by the lifting and lowering of the assembly elevator 1; when the assembly detection component is assembled, it is mainly observed whether the spring pin can be inserted into the second positioning hole on the vehicle body to be assembled. If it cannot be inserted, it means that the assembly is not in place, and the second positioning hole may be blocked by the chassis parts to be assembled or the empty spring to be assembled. Then the specific insertion situation is completed by the detection part 20 arranged on one side of the spring pin. Here, the opening position of the second positioning hole is also pre-opened by the technical personnel according to the assembly requirements.

[0094] In a preferred embodiment, the assembly system further comprises: a mobile monitoring component;

[0095] Mobile monitoring components: laser ranging unit and AI vision guidance unit;

[0096] In order to realize the automated assembly precision control of the entire vehicle chassis, the embodiment of the present application cooperates with the laser ranging unit and the AI ​​vision guidance unit to improve the assembly efficiency and quality.

[0097] Specifically, the laser ranging unit and the AI ​​visual guidance unit cooperate with the empty spring assembly component, the first fixing component, the first positioning component and the assembly detection component to collect the position information of the transmission fixing structure, the first transmission positioning structure, the transmission structure and the second transmission positioning structure.

[0098] The laser ranging unit is a device or component that uses laser technology to measure distance. In the embodiment of the present application, for example, when the sling 9 is lifting the car body to be assembled, the horizontal position information of the sling 9 can be collected by the laser ranging unit to know whether the posture of the sling 9 needs further adjustment.

[0099] An AI visual guidance unit refers to a component or system that utilizes artificial intelligence technology, especially computer vision technology, to guide and control equipment, robots or systems. In an embodiment of the present application, the AI ​​visual guidance unit can collect position information of the transmission fixing structure, the first transmission positioning structure, the transmission structure and the second transmission positioning structure through the AI ​​visual camera function. The position information is used to reflect whether each positioning pin / spring pin is successfully inserted into the corresponding fixing hole / positioning hole and the position of the empty spring to be assembled.

[0100] In a preferred embodiment, the assembly system further comprises: a control component, the control component being used to control the operation of the transmission fixing structure, the first transmission positioning structure, the transmission structure and the assembly lift 1;

[0101] First of all, the control component needs to execute operations such as driving the corresponding components and data analysis and processing, so the opening and closing of the driving components such as the assembly elevator 1, the first telescopic drive cylinder 15, the second telescopic drive cylinder 16, and the two transmission structures in the assembly system need to be completed by the control component.

[0102] In order to ensure the accuracy of automatic assembly, the control component is also connected to the laser distance measuring unit and the AI ​​visual guidance unit by signal, so as to receive the position information collected by the laser distance measuring unit and the AI ​​visual guidance unit, and control the assembly elevator 1 and the transmission fixed structure to move the empty spring to be assembled to the target installation position according to the position information, and generate the assembly detection result.

[0103] Specifically, when the laser distance measuring unit and the AI ​​vision guidance unit collect the corresponding position information, the control component will decode and analyze the position information, control the assembly elevator 1 and the transmission structure to drive the empty spring to be assembled to move in the specified direction to reach the target installation position, and also need to judge the assembly in place detection result according to the situation of the spring pin extending out of the second positioning hole (for details, please refer to Fig.10 In the situation shown, the detection component 20 is a component in the AI ​​vision guidance unit that includes an AI vision photography function, and the control component can obtain the assembly in place detection result based on the position information collected by the detection component 20).

[0104] The specific working principle of the embodiment of the present application is described below by taking the assembly process of the empty spring to be assembled and the vehicle body to be assembled as an example.

[0105] When the body to be assembled stops in place, the conveyor line PLC module in the control component sends a signal to the AI ​​vision guidance unit that the body to be assembled is in place, and uses AI vision photography to take a picture of the front empty spring of the current vehicle. The position and distance that the servo electric cylinder needs to move are automatically calculated based on the photographic results, and the command is fed back to the servo electric cylinder control module in the control component. After the servo electric cylinder control module is in place, a secondary AI vision photography detection is performed to confirm. After confirmation, the empty spring clamp 6 is controlled to clamp the empty spring to be assembled, and the next step of assembly is performed.

[0106] During the movement of the empty spring to be assembled, as the assembly elevator 1 rises to different heights, two transmission structures are needed to adjust the position of the empty spring to be assembled in real time, so that the empty spring to be assembled avoids the vehicle body structure and enters the target installation position of the empty spring to be assembled; when the assembly is in place, the empty spring clamp 6 releases the empty spring to be assembled and returns to the initial waiting position, and at the same time feeds back the assembly in place signal to the line body PLC to complete the assembly of the empty spring to be assembled.

[0107] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A vehicle chassis integral assembly system, characterized in that: Used to assemble a vehicle body to be assembled and a chassis to be assembled; wherein the chassis to be assembled includes at least an empty spring to be assembled; The assembly system comprises: an assembly elevator (1) and an empty spring assembly component; The empty spring assembly assembly comprises: a support frame (2) and a first empty spring moving part slidably arranged on the support frame (2); the support frame (2) is arranged on the peripheral side of the assembly elevator (1); The first empty spring moving part has an empty spring clamping position for clamping the empty spring to be assembled; The assembly lift (1) is connected to one end of the first empty spring moving part and is used to drive the first empty spring moving part to move toward the direction close to the vehicle body to be assembled to a target installation position, thereby realizing the assembly of the empty spring to be assembled and the vehicle body to be assembled.

2. A vehicle chassis integral assembly system according to claim 1, characterized in that: The first empty spring moving part comprises: A follower main frame (3) and a connecting main frame (4) arranged on the follower main frame (3); the follower main frame (3) is connected to the assembly lift (1); the connecting main frame (4) is slidably connected to the support frame body (2); The follower main frame (3) moves under the drive of the assembly elevator (1), thereby driving the connecting main frame (4) to move along the first direction; the empty spring clamping position is formed on the connecting main frame (4).

3. A vehicle chassis integral assembly system according to claim 2, characterized in that: The empty spring assembly further comprises: a second empty spring moving part, the second empty spring moving part being arranged on the top of the connecting main frame (4); The second empty spring moving part comprises: two transmission structures whose transmission directions are perpendicular to each other and an empty spring supporting plate (5) arranged on the two transmission structures; An empty spring clamp (6) is provided on the empty spring support plate (5), and the empty spring clamp (6) is used to clamp the empty spring to be assembled; the two transmission structures are used to drive the empty spring clamp (6) to move along the second direction and the third direction respectively; The second direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

4. The vehicle chassis integral assembly system according to claim 3, characterized in that: The empty spring clamp (6) comprises: a first clamp (61) and a second clamp (62) that cooperate with each other, and a telescopic member (7) that drives the two clamps to swing; The empty spring clamping position is formed between the first clamp (61) and the second clamp (62); the clamp bodies of the first clamp (61) and the second clamp (62) both have an arc-shaped curved portion; In which, a limit block (8) is also arranged on the empty spring support plate (5), and the arc-shaped curved parts of the first clamp (61) and the second clamp (62) are movably connected to the limit block (8) through a pin shaft (63). Driven by the telescopic part (7), the arc-shaped curved parts swing around the pin shaft (63) as the center, thereby controlling the opening and closing of the empty spring clamp (6).

5. The vehicle chassis integral assembly system according to claim 4, characterized in that: The assembly system comprises: a sling (9) and a slide (10) which cooperate with the assembly lift (1); The hoist (9) is used to hoist the vehicle body to be assembled to the assembly station; the assembly elevator (1) is arranged below the hoist (9); the sled (10) is used to carry the chassis parts to be assembled in the chassis to be assembled; the sled (10) can be moved onto the assembly elevator (1) and moved to a target height with the assembly elevator (1) to complete the assembly of the vehicle body to be assembled and the chassis parts to be assembled.

6. The vehicle chassis integral assembly system according to claim 5, characterized in that: The assembly system: a first fixing component, the first fixing component is used to fix the position of the sling (9); The first fixing assembly comprises: a plurality of vertical frames (11), each of the vertical frames (11) is arranged at the assembly station and is evenly distributed around the assembly elevator (1), a transmission fixing structure is arranged on the top of the vertical frame (11), and the transmission fixing structure has a retractable fixing end (12); When the fixed end (12) is in an extended state, the fixed end (12) extends into a fixing hole on the sling (9) to achieve fixation of the sling (9).

7. The vehicle chassis integral assembly system according to claim 6, characterized in that: The assembly system further comprises: a first positioning assembly, the first positioning assembly being used to position the slide (10) on the assembly elevator (1); The first positioning component is arranged on the assembly elevator (1), and the first positioning component comprises: a first transmission positioning structure, the first transmission positioning structure has a retractable first positioning end (13); when the first positioning end (13) is in an extended state, the first positioning end (13) extends into a first positioning hole on the sled (10) to achieve the positioning of the sled (10).

8. The vehicle chassis integral assembly system according to claim 7, characterized in that: The assembly system further comprises: A fully assembled detection component, wherein the fully assembled detection component is arranged on the fully assembled elevator (1); The assembly detection component comprises: a second transmission positioning structure, the second transmission positioning structure having a detection end (14); the detection end (14) is driven by the assembly lift (1) to extend into a second positioning hole on the vehicle body to be assembled, so as to realize assembly detection of the vehicle body to be assembled.

9. The vehicle chassis integral assembly system according to claim 8, characterized in that: The combined system also includes: a mobile monitoring component; The mobile monitoring component includes: a laser ranging unit and an AI visual guidance unit; The laser ranging unit and the AI ​​visual guidance unit cooperate with the empty spring assembly component, the first fixing component, the first positioning component and the assembly detection component to collect the position information of the transmission fixing structure, the first transmission positioning structure, the transmission structure and the second transmission positioning structure.

10. The vehicle chassis integral assembly system according to claim 9, characterized in that: The assembly system further comprises: a control component, the control component being used to control the operation of the transmission fixing structure, the first transmission positioning structure, the transmission structure and the assembly elevator (1); The control component is also in signal communication with the laser distance measuring unit and the AI ​​visual guidance unit respectively, and is used to receive the position information collected by the laser distance measuring unit and the AI ​​visual guidance unit, and control the assembly elevator (1) and the transmission structure to move the empty spring to be assembled to the target installation position according to the position information, and generate an assembly detection result.

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