Hot riveting equipment and assembling method thereof

Abstract

The invention discloses hot riveting equipment and an assembling method thereof. The equipment comprises an equipment frame, a workbench, a bottom die, an upper die mounting part, an upper die, two groups of up-down moving assemblies and two limiting seats, wherein the upper die comprises a first connecting plate and a plurality of hot riveting assemblies. The two sets of up-down moving assemblies are arranged on the front side and the rear side of the workbench, each up-down moving assembly comprises a lower connecting plate, a plurality of guide columns, an upper mounting plate and a jacking device, the lower connecting plates are mounted on the equipment frame and arranged in the left-right direction, the guide columns are connected to the lower connecting plates in an up-down sliding mode, and the upper mounting plates are fixedly connected to the guide columns; the two limiting seats are arranged on the left side and the right side of the hot riveting assembly correspondingly and opposite to the first connecting plate, each limiting seat comprises a seat body and a plurality of balls, the seat bodies are arranged in the front-back direction, the two ends of each seat body are installed on the two upper installing plates correspondingly, and the balls are connected to the top faces of the seat bodies in a rolling mode. The jacking device drives the upper mounting plate to move up and down, so that the balls have the lowest height and the highest height. Compared with the prior art, the equipment is convenient to assemble.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hot riveting equipment, and particularly relates to a hot riveting equipment and an assembling method using the same. BACKGROUND

[0002] The integrated busbar (Cell Contact System, CCS) is a core component in a new energy battery, and realizes functions such as electrical connection, signal acquisition, structural support and safety protection through highly integrated design. The integrated busbar generally comprises a bracket, an acquisition piece (such as an FPC) and an aluminum bar, the bracket is provided with hot riveting columns, and the acquisition piece and the aluminum bar are fixed on the bracket through the hot riveting columns. Since the acquisition piece is provided with a plurality of hot riveting column connecting holes, and the number of aluminum bars is large, a large number of hot riveting columns are arranged on the bracket, especially for large-size integrated busbars, the number of hot riveting columns on the bracket is larger.

[0003] In order to improve the hot riveting efficiency of the hot riveting columns, the upper die of the hot riveting equipment comprises a connecting plate and hot riveting assemblies connected to the connecting plate, the number and position distribution of the hot riveting assemblies are arranged in correspondence with the hot riveting columns of the integrated busbar to be hot riveted, so that the hot riveting columns of the integrated busbar can be hot riveted at one time through the upper die, and the hot riveting quality is improved.

[0004] When assembling the upper die, all the hot riveting assemblies are connected to the connecting plate to form the upper die, and then the entire upper die is connected and fixed to the upper die mounting plate of the equipment through the connecting plate. However, since the number of hot riveting assemblies is large, some devices are provided with a pre-pressing assembly (in the hot riveting process, the pre-pressing assembly first elastically presses the integrated busbar, and then the upper die continues to move downward to make the hot riveting assembly hot rivet), the weight of the entire upper die is large, and the assembly difficulty is large. The current installation method of the upper die is as follows: a forklift is used to lift the upper die to a predetermined position, then the position of the upper die is adjusted so that the installation position of the upper die is opposite to the installation position of the upper die mounting plate of the equipment, and then the upper die mounting plate is moved downward for assembly. However, the upper die installation method has the following problems: since the weight of the upper die is large, this increases the difficulty of adjusting the position of the upper die on the forklift, consumes a long time, and affects the production efficiency; during the actual adjustment of the position, the upper die may even fall off, which not only damages the upper die and the workbench, but also threatens the safety of the workers. SUMMARY

[0005] The present application aims to overcome the deficiencies in the prior art, and provides a hot riveting equipment.

[0006] To achieve the above object, the application discloses a hot riveting equipment, which comprises an equipment frame, a workbench, a bottom die, an upper die mounting plate and an upper die, the workbench and the upper die mounting plate are installed on the equipment frame, the bottom die is arranged on the workbench, the upper die comprises a first connecting plate and a plurality of hot riveting assemblies, the first connecting plate is installed at the bottom of the upper die mounting plate, and the plurality of hot riveting assemblies are installed on the first connecting plate;

[0007] Further, two sets of up-down moving assemblies and two limiting seats are arranged on the first connecting plate.

[0008] The two sets of up-down moving assemblies are arranged on the front and rear sides of the workbench respectively.

[0009] Each set of up-down moving assemblies comprises a lower connecting plate, a plurality of guide columns, an upper mounting plate and a jacking device, the lower connecting plate is installed on the equipment frame and arranged along the left-right direction, the plurality of guide columns are all connected to the lower connecting plate in a sliding mode and arranged at intervals along the left-right direction, and the upper mounting plate is fixedly connected to the plurality of guide columns.

[0010] The two limiting seats are arranged on the left and right sides of the hot riveting assemblies respectively and arranged opposite to the left and right sides of the first connecting plate.

[0011] Each limiting seat comprises a seat body and a plurality of balls, the seat body is arranged along the front-rear direction, two ends of the seat body are installed on the upper mounting plates of the two sets of up-down moving assemblies respectively, and the plurality of balls are connected to the top surface of the seat body in a rolling mode.

[0012] The output end of the jacking device is connected to the upper mounting plate, the jacking device is used to drive the upper mounting plate to move up and down, so that the plurality of balls have a minimum height and a maximum height, at the minimum height, the plurality of balls are limitedly matched with the first connecting plate, the hot riveting assembly performs hot riveting, and at the maximum height, the height is greater than the maximum length of the hot riveting assembly.

[0013] Further, a plurality of ball mounting seats are arranged on the limiting seat, each ball mounting seat is provided with a mounting cavity, the top of the mounting seat is provided with an opening, and the opening is connected to the mounting cavity.

[0014] Each ball is arranged in a mounting cavity.

[0015] A spring is arranged in the mounting cavity, the bottom of the spring abuts against the bottom of the mounting cavity, the top of the spring lifts the corresponding ball, and the ball partially protrudes from the opening.

[0016] At the minimum position, the ball is pressed downward by the first connecting plate by a first distance.

[0017] Furthermore, the lower connecting plate is slidably connected to the equipment frame, and the base is slidably connected to the upper mounting plate.

[0018] Furthermore, it also includes a positioning plate, which is U-shaped, with flange plates extending outward from the top of both sides of the positioning plate. The two flange plates are placed on the corresponding ball bearings, and the bottom mold is fixedly connected to the positioning plate.

[0019] The front side of the positioning plate is slidably connected to the up-down moving component.

[0020] Furthermore, the bottom of the positioning plate is provided with a positioning post, the length of which does not exceed the first distance, and the worktable is provided with a positioning hole, which is positioned and engaged with the positioning post.

[0021] Furthermore, the opening of the positioning hole gradually enlarges to form a flared opening.

[0022] Furthermore, the ball bearing mounting base includes a lower body and an upper body. The lower body has a mounting groove, and the upper body has a mounting through hole. The mounting through hole is opposite to and communicates with the mounting groove to form the mounting cavity.

[0023] The top of the inner wall of the mounting through hole gradually tapers to engage with the ball bearing in a limiting manner;

[0024] A sliding push plate is horizontally provided in the mounting through hole. The sliding push plate is slidably connected to the mounting through hole, and the top of the spring is pressed against the bottom surface of the sliding push plate.

[0025] The top surface of the ball is pressed against the ball.

[0026] Furthermore, a snap-fit ​​component is fixedly connected to the upper mounting plate, and the snap-fit ​​component is provided with a snap-fit ​​part;

[0027] The bottom of the base is provided with a slot, which is slidably engaged with the locking part.

[0028] Furthermore, the seat body is hollow, the inner cavity of the seat body extends through its two end faces, and the inner sidewall of the seat body is provided with reinforcing ribs;

[0029] There are multiple reinforcing ribs, and the multiple reinforcing ribs are evenly distributed along the circumference;

[0030] Each of the reinforcing ribs is C-shaped, with the opening of the reinforcing rib facing the center of the base.

[0031] The present invention also provides an assembly method using the above-described hot riveting equipment.

[0032] A method for assembling a hot riveting device, wherein the hot riveting device is the hot riveting device described above, and the assembly method is as follows:

[0033] Step S1: Install the worktable, bottom mold, and vertical moving assembly onto the equipment frame, and install the limiting seat onto the upper mounting plate;

[0034] Multiple hot riveting components are mounted on the first connecting plate to form an upper mold;

[0035] Step S2: Use a forklift to move the upper mold so that both sides of the first connecting plate are placed on the two limiting seats respectively;

[0036] Step S3: Manually adjust the position of the upper mold so that the first connecting plate is positioned opposite to the upper mold mounting plate;

[0037] Step S4: The upper mold mounting plate moves downward to assemble with the first connecting plate. After assembly, the upper mold mounting plate drives the upper mold to move upward.

[0038] Step S5: Install the bottom mold onto the workbench.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0040] By setting two limiting seats to support both sides of the first connecting plate, and the limiting seats are equipped with ball bearings, the two sides of the first connecting plate are respectively set on the ball bearings, so that the first connecting plate (upper mold) can be moved horizontally along the ball bearings with low resistance. Compared with adjusting the position of the upper mold on a forklift, the operation and assembly difficulty are lower, which is conducive to improving production efficiency. At the same time, it avoids the problem of the upper mold falling off due to operation on a forklift, which would damage the workbench and injure workers.

[0041] The integrated busbar has a large number of electronic components. If the downward movement of the upper mold is too large, it can easily damage the electronic components on the integrated busbar. This application sets a limit seat to limit the first connecting plate during hot riveting, which completely avoids the upper mold from excessively pressing down and colliding with the precision electronic components such as the acquisition components and sensors on the integrated busbar due to equipment stroke loss or operation error.

[0042] The seat of the limiting seat is arranged along the front-to-back direction, and its two ends are fixed to the upper mounting plate of the up-and-down moving component, forming a distributed support frame. The impact force of hot riveting is evenly transmitted to the seat through the ball bearings, and then sequentially to the guide column and the equipment frame, rather than being concentrated on a local area of ​​the busbar, thus avoiding breakage due to stress concentration during hot riveting.

[0043] When assembling the upper mold, the limit seat can be raised by moving the components up and down, reducing the downward travel of the upper mold mounting plate and thus ensuring better stability of the upper mold mounting plate during assembly. Attached Figure Description

[0044] Figure 1 This is a three-dimensional structural diagram of the hot riveting device in an embodiment;

[0045] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0046] Figure 3 for Figure 1 Main view of the hot riveting equipment;

[0047] Figure 4 for Figure 1 A three-dimensional exploded view of the vertically moving component;

[0048] Figure 5 for Figure 1 A three-dimensional structural diagram of the middle limit seat;

[0049] Figure 6 for Figure 1 Front view of the middle limit seat;

[0050] Figure 7 This is a sectional view of the limiting seat;

[0051] Figure 8 This is an exploded top view of the vertically moving components and the positioning plate.

[0052] Equipment frame 100; guide rail 110;

[0053] Workbench 200;

[0054] Upper mold mounting plate 300;

[0055] Upper mold 400; First connecting plate 410; Hot riveting assembly 420;

[0056] Drive unit 500;

[0057] Upward and downward moving assembly 600; lower connecting plate 610; guide column 620; upper mounting plate 630; snap-fit ​​component 631; snap-fit ​​part 6311; slide groove 632; lifting device 640;

[0058] Limit seat 700; seat body 710; slot 711; reinforcing rib 712; ball bearing 720; ball bearing mounting seat 730; mounting cavity 731; lower seat body 732; mounting groove 7321; upper seat body 733; mounting through hole 7331; sliding push plate 734; spring 740;

[0059] Positioning plate 800; flange plate 810; positioning post 820; locking block 830. Detailed Implementation

[0060] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0061] A hot riveting device, see Figures 1-8 The system includes a frame 100, a workbench 200, a bottom mold, an upper mold mounting plate 300, an upper mold 400, and a drive unit 500. The workbench 200 is fixedly connected to the frame 100. The bottom mold is mounted on the workbench 200 and is designed according to the integrated busbar to position it. The upper mold mounting plate 300 is slidably connected to the frame 100. The upper mold 400 includes a first connecting plate 410 and multiple hot riveting components 420. The first connecting plate 410 is mounted on the bottom of the upper mold mounting plate 300, and the multiple hot riveting components 420 are mounted on the first connecting plate 410. The number and positional distribution of the multiple hot riveting components 420 correspond to the hot riveting posts of the integrated busbar on the bottom mold. The drive unit is mounted on the frame 100 and is used to drive the upper mold mounting plate 300, thereby causing the upper mold 400 to move downwards for hot riveting.

[0062] The drive device adopts existing drive devices, such as conventional drive methods that drive the upper mold mounting plate 300 to move up and down through hydraulic cylinders, which will not be described in detail here.

[0063] In this embodiment, the hot riveting equipment also includes two sets of vertical moving components 600 and two limiting seats 700. The two sets of vertical moving components 600 are respectively located on the front and rear sides of the worktable 200. The two sets of vertical moving components 600 have the same structure, and the two limiting seats 700 also have the same structure. The following description will use one of them as an example. The vertical moving component 600 includes a lower connecting plate 610, multiple guide columns 620, an upper mounting plate 630, and a lifting device 640. The lower connecting plate 610 is mounted on the equipment frame 100 and arranged in the left-right direction. The multiple guide columns 620 are all slidably connected to the lower connecting plate 610 and are spaced apart in the left-right direction. The upper mounting plate 630 is fixedly connected to the multiple guide columns 620. The two limiting seats 700 are respectively located on the left and right sides of the hot riveting component 420 and are respectively arranged opposite to the left and right sides of the first connecting plate 410, so that the two limiting seats 700 can support and limit the two sides of the first connecting plate 410. Each limiting seat 700 includes a seat body 710 and multiple ball bearings 720. The seat body 710 is arranged in a front-to-back direction, and its two ends are respectively mounted on the upper mounting plates 630 of two sets of vertical moving components 600. The multiple ball bearings 720 are rotatably connected to the top surface of the seat body 710. The limiting seat 700 supports and limits the first connecting plate 410 through the ball bearings 720. The lifting device 640 adopts an existing device, such as a hydraulic cylinder, and its output end is connected to the upper mounting plate 630 to drive the upper mounting plate 630 to move up and down, so that the multiple ball bearings 720 have a minimum height and a maximum height. At the minimum height, the multiple ball bearings 720 are limited and engaged with the first connecting plate 410, and the hot riveting component 420 performs hot riveting. At the maximum height, this height is greater than the maximum length of the hot riveting component 420, where the maximum height refers to the vertical distance between the top surface of the ball bearing 720 and the worktable 200.

[0064] The hot riveting equipment, by incorporating the aforementioned vertical moving component 600 and limiting seat 700, facilitates the assembly of the upper mold 400. Specifically, the assembly method of the hot riveting equipment is as follows:

[0065] Step S1: Install the worktable 200, bottom mold, vertical moving component 600 and drive device on the equipment frame 100, and install the limit seat 700 on the upper mounting plate 630.

[0066] After assembly, under normal conditions, the upper mounting plate 630, lower connecting plate 610, and hot riveting frame of the vertical moving component 600 come into contact in sequence, and the lifting device 640 of the vertical moving component 600 does not serve as a load-bearing support structure.

[0067] Multiple hot riveting components 420 are mounted on the first connecting plate 410 to form an upper mold 400. The number and position distribution of the hot riveting components 420 are set according to the number and position distribution of the hot riveting posts on the integrated busbar to be hot riveted.

[0068] Step S2: Lift the limiting seat 700 by moving the up and down component 600, and then use a forklift to move the upper mold 400 so that the two sides of the first connecting plate 410 are placed on the two limiting seats 700 respectively.

[0069] The vertical moving component 600 can raise the limit seat 700, reducing the downward travel of the upper mold mounting plate 300, thus ensuring better stability of the upper mold mounting plate 300 during assembly of the upper mold 400.

[0070] Step S3: Manually adjust the position of the upper mold 400 so that the first connecting plate 410 is positioned opposite the upper mold mounting plate 300. Since the seat 710 of the limiting seat 700 is equipped with ball bearings 720, when adjusting the position of the upper mold 400, the first connecting plate 410 (upper mold 400) can move with low resistance along the ball bearings 720. Compared to adjusting the position of the upper mold 400 on a forklift, this is easier to operate and assemble, improving production efficiency. It also avoids the problem of the upper mold 400 falling off the workbench 200 and injuring workers due to operation on a forklift.

[0071] Step S4: The upper mold mounting plate 300 moves downward to assemble with the first connecting plate 410. After assembly, the upper mold mounting plate 300 drives the upper mold 400 to move upward, and the lifting device 640 of the vertical moving component 600 drives the upper mounting plate 630 and the limiting seat 700 to move downward to the initial position.

[0072] Step S5: Install the bottom mold onto the workbench 200. The bottom mold is assembled in the last step, which not only provides installation space for the upper mold 400 when it is assembled, but also avoids damage to the upper mold 400 during the installation process.

[0073] The working principle of the hot riveting equipment is as follows: The integrated busbar is placed on the bottom mold, which positions the integrated busbar. Then, the upper mold 400 moves downward under the action of the drive device to perform hot riveting. During the hot riveting process, when the upper mold 400 moves to the lowest position, the bottom of the first connecting plate 410 is limited by the limiting seat 700. After the hot riveting is completed, the upper mold 400 moves upward to remove the integrated busbar, thus completing the hot riveting.

[0074] The integrated busbar houses numerous electronic components. If the downward travel of the upper mold 400 is excessive, it can easily damage these components. This embodiment addresses this by using a limiting seat 700 to restrict the first connecting plate 410 during hot riveting, completely preventing the upper mold 400 from excessively pressing down and colliding with precision electronic components such as data acquisition units and sensors on the integrated busbar due to uncontrolled equipment travel or operational errors. The seat 710 of the limiting seat 700 is arranged along the front-to-back direction, with both ends fixed to the upper mounting plate 630 of the vertical moving assembly 600, forming a distributed support frame. The impact force of the hot riveting is evenly transmitted to the seat 710 through the ball bearings 720, and then sequentially to the guide post 620 and the equipment frame 100, rather than being concentrated on a localized area of ​​the busbar, thus preventing breakage due to stress concentration during hot riveting.

[0075] Since the first connecting plate 410 and the ball 720 are in rigid contact, during assembly, when the first connecting plate 410 of the upper mold 400 is placed on the steel ball, an impact will occur between the upper mold 400 and the steel ball, causing vibration. This places certain requirements on the structural strength of the equipment frame 100. Furthermore, during the hot riveting process, the contact between the first connecting plate 410 and the ball 720 generates vibration, which can easily damage the hot riveting posts on the integrated busbar. Therefore, in this embodiment, the limiting seat 700 is provided with multiple ball mounting seats 730, each ball mounting seat 730 having a mounting cavity 731. The top of the mounting seat has an opening that connects to the mounting cavity 731. Each ball 720 is located within a mounting cavity 731. A spring 740 is provided within the mounting cavity 731. The bottom of the spring 740 abuts against the bottom of the mounting cavity 731, and the top of the spring 740 lifts the corresponding ball 720, causing part of the ball 720 to protrude from the opening. During the hot riveting process, the upper die 400 moves downward until it is about to contact the hot riveting post, at which point the first connecting plate 410 contacts the ball bearing 720. Then, the upper die continues to move downward, and the first connecting plate 410 presses down on the ball bearing 720. When the upper die 400 moves downward to the predetermined position to achieve riveting, the spring 740 is compressed by a first distance, and the ball bearing 720 is at its lowest position. By setting the spring 740 to a movable and buffered structure, during assembly, when the upper die 400 is placed on the ball bearing 720 of the limiting seat 700, the ball bearing 720 moves downward, and the spring 740 is compressed to absorb energy. This absorbs the impact on the limiting seat 700 during the lowering of the upper die 400, reducing the mechanical performance requirements of the equipment frame 100 and protecting the seat 710, thus extending its service life. During the hot riveting process, the spring 740 is compressed to absorb the impact force when the upper die 400 is pressed down. The hot riveting assembly 420 makes smooth contact with the hot riveting post of the integrated busbar, which significantly avoids the problem of deformation and breakage caused by the impact of the hot riveting post, and greatly reduces the damage to the integrated busbar caused by the upper die 400 during the hot riveting process.

[0076] Specifically, the ball bearing mounting base 730 includes a lower body 732 and an upper body 733. The lower body 732 has a mounting groove 7321, and the upper body 733 has a mounting through hole 7331. The mounting through hole 7331 and the mounting groove 7321 are opposite to each other and communicate with each other to form the mounting cavity. The top of the inner sidewall of the mounting through hole 7331 gradually tapers to form an arc-shaped surface, which is adapted to the spherical surface of the ball bearing, thereby confining the ball bearing within the mounting through hole 7331 and allowing it to rotate. A sliding push plate 734 is horizontally provided within the mounting through hole 7331. The sliding push plate 734 is slidably connected to the mounting through hole 7331. The top of the spring abuts against the bottom surface of the sliding push plate 734, and the top surface of the ball bearing abuts against the ball bearing. By setting a sliding push plate 734 that can slide up and down, on the one hand, the sliding push plate 734 can make stable contact with the spring, improving the spring assembly stability; on the other hand, the ball and the sliding push plate 734 are in point contact, which can ensure the smooth rotation of the ball.

[0077] In this embodiment, the lower connecting plate 610 of the vertical moving assembly 600 is slidably connected to the equipment frame 100 via the guide rail 110, allowing the vertical moving assembly 600 to move back and forth on the equipment frame 100. The base of the limiting seat 700 is slidably connected to the upper mounting plate 630 of the vertical moving assembly 600, allowing the vertical moving assembly 600 to move back and forth relative to the limiting seat 700. When assembling the limiting seat 700, the lower connecting plate 610 of the front vertical moving assembly 600 is moved towards the front of the equipment frame 100, which facilitates the installation of the seat 710 onto the upper mounting plate 630 of the vertical moving assembly 600; the lower connecting plate 610 of the rear side first moves forward to support the limiting seat 700, and then moves backward to connect and fix the two. The seat 710 of the limiting seat 700 is slidably connected to the upper mounting plate 630 of the vertical moving assembly 600. This can fix the limiting seat 700, while the limiting seat 700 does not obstruct the forward and backward movement of the vertical moving assembly 600, so that the vertical moving assembly 600 can move forward and backward to assemble the limiting seat 700.

[0078] The upper mounting plate 630 is fixedly connected to a snap-fit ​​component 631, which has a snap-fit ​​portion 6311. The bottom of the base 710 has a slot 711, which slidably engages with the snap-fit ​​portion 6311. This slidable engagement means that the snap-fit ​​portion 6311 engages within the slot 711, allowing the vertical sliding component to slide back and forth along the slot 711. The engagement between the snap-fit ​​component 631 and the slot 711 enables relative sliding between them, while simultaneously ensuring that the limiting seat 700 is stably mounted on the vertical moving component 600, preventing tilting. Furthermore, the slot 711 allows workers to hold the base 710 during transport, preventing hand injuries during placement.

[0079] In this embodiment, the bottom mold is set on the workbench 200, which is located between two sets of vertical moving parts, making it inconvenient for workers to load and unload materials. Therefore, the device in this embodiment also includes a positioning plate 800. The positioning plate 800 has a U-shaped main view projection, and flange plates 810 extend outward from the top of both sides of the positioning plate 800. The two flange plates 810 are respectively placed on the ball bearings 720 of the corresponding side limiting seats 700. The bottom mold is fixedly connected to the positioning plate 800. The front side of the positioning plate 800 is slidably connected to the vertical moving assembly 600, allowing it to move vertically relative to the vertical moving assembly 600 and to move synchronously back and forth with the vertical moving assembly 600. Specifically, the front side of the positioning plate 800 is provided with a locking block 830, and the rear side of the upper mounting plate 630 is provided with vertically arranged sliding grooves 632, the cross-sectional shape of which is adapted to the locking block 830. During assembly, the locking block 830 is engaged with the slide groove 632 from above, allowing the positioning plate 800 to move up and down along the slide groove 632 via the locking block 830. The locking block 830's engagement within the slide groove 632 restricts the horizontal movement of the positioning plate 800, thus enabling it to move synchronously back and forth with the upper mounting plate 630. The positioning plate 800 is installed after the bottom mold is mounted on the worktable 200. Normally, there is a gap between the bottom of the positioning plate 800 and the worktable 200. During hot riveting, when the first connecting plate 410 of the upper mold 400 presses down on the flange plate 810, it presses down on the ball bearing 720. When the upper mold 400 moves to its lowest position, the bottom of the positioning plate 800 is in contact with the worktable 200. When hot riveting is complete and the upper mold 400 moves upward, the ball bearing 720 resets, and the positioning plate 800 is lifted by the action of the ball bearing 720. During unloading, the up-and-down moving component 600 moves forward, thereby pulling the positioning plate 800 to the front of the equipment, which is convenient for workers to unload and load materials.

[0080] By setting up a positioning plate 800, during the forward and backward movement of the positioning plate 800, its flange plate 810 moves smoothly and stably on the ball bearings 720. This improves the movement accuracy of the positioning plate 800, ensuring strict alignment between the bottom mold and the upper mold 400. It prevents the positioning plate 800 from jamming during forward and backward movement, which could lead to misalignment between the bottom mold and the upper mold 400, causing problems such as incomplete riveting or insufficient riveting strength, thus improving the quality of hot riveting. Furthermore, the force of the positioning plate 800's forward and backward movement is perpendicular to the movement direction of the guide column 620 of the vertical moving assembly 600. The smooth movement of the positioning plate 800 significantly reduces the impact of its movement on the guide column 620, preventing tensile deformation of the guide column 620 and avoiding jamming during its vertical movement.

[0081] To further improve the positional accuracy between the positioning plate 800, the bottom mold, and the upper mold 400, and to enhance the quality of hot riveting, in this embodiment, a positioning post 820 is provided at the bottom of the positioning plate 800. The length of the positioning post 820 does not exceed the first distance that the ball bearing 720 is compressed during the hot riveting process. A positioning hole is provided on the worktable 200, and the positioning hole and the positioning post 820 are positioned and engaged. Through the positioning engagement between the positioning post 820 and the positioning hole, the positional accuracy of the positioning plate 800 on the worktable 200 is improved, thereby ensuring that the bottom mold mounted on the positioning plate 800 remains relative to the upper mold 400, thus improving the quality of hot riveting. During the hot riveting process, the positioning plate 800 is pressed downwards, and its positioning post 820 inserts into the positioning hole. At this time, the ball bearing 720 is compressed by the first distance. After the hot riveting is completed, the upper mold 400 moves upwards to reset. During this process, the ball bearing 720 also resets, thereby lifting the positioning plate 800. The positioning post 820 at the bottom of the positioning plate 800 moves away from the positioning hole, at which point the positioning plate 800 can move back and forth.

[0082] The opening of the positioning hole gradually widens to form a flared section. In this way, the flared section can match the positioning plate 800 within a certain deviation range, reducing the positional accuracy requirements of the positioning plate 800.

[0083] Therefore, in this design, the ball bearing 720 on the limiting seat 700 not only facilitates the assembly of the upper mold 400 but also ensures the smooth movement of the positioning plate 800 during loading and unloading, improving movement accuracy and reducing the impact on the guide post 620 of the vertical moving component 600. The cooperation between the ball bearing 720 and the spring 740 not only reduces the impact generated on the upper mold 400 during assembly and hot riveting but also releases the limiting position between the worktable 200 and the positioning plate 800. This improves the positional accuracy between the positioning plate 800, the bottom mold, and the upper mold 400 while enabling the positioning plate 800 to move forward and backward.

[0084] In this embodiment, the seat 710 is hollow, with its inner cavity extending through both end faces. Reinforcing ribs 712 are provided on the inner sidewall of the seat 710. By providing reinforcing ribs 712, the rigidity and bending stiffness of the seat 710 are significantly improved. The hollow design of the seat 710 reduces its weight, achieving lightweight requirements and facilitating handling and assembly.

[0085] Preferably, there are multiple reinforcing ribs 712, specifically four, which are evenly distributed circumferentially. The four reinforcing ribs 712 further improve the mechanical properties of the base 710.

[0086] The reinforcing rib 712 is C-shaped, with its opening facing the center of the base 710. This C-shaped design of the reinforcing rib 712 improves the structural strength of the base 710. Furthermore, when the load on the base 710 is excessive, the reinforcing structure can be expanded. The C-shape allows for a snap-fit ​​connection between the base 710 and the reinforcing structure, further enhancing the mechanical properties and versatility of the base 710.

[0087] In this embodiment, the base 710 is made of high-strength aluminum alloy, such as 6061-T6 or 7075-T6 aluminum alloy (yield strength ≥240MPa, elastic modulus 70GPa). This type of base 710 is lightweight and also has good mechanical properties and heat dissipation. The ball bearings 720 are made of G20SiMn bearing steel, with a diameter of Φ15mm, and there are 56 of them, arranged in double rows on the base 710, with 28 balls in each row.

[0088] The two rows of balls 720 are arranged in an alternating manner. This arrangement of balls 720 can distribute the load. Whether during the assembly of the upper mold or the hot riveting process, the load applied by the upper mold 400 to the balls 720 is a uniform load. This not only improves the service life of the balls 720, but also enhances the stability of the upper mold 400 on the balls 720.

[0089] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A hot riveting device, comprising a device frame, a worktable, a bottom mold, an upper mold mounting plate, and an upper mold, wherein the worktable and the upper mold mounting plate are mounted on the device frame, the bottom mold is disposed on the worktable, and the upper mold includes a first connecting plate and a plurality of hot riveting components, wherein the first connecting plate is mounted on the bottom of the upper mold mounting plate, and the plurality of hot riveting components are mounted on the first connecting plate, characterized in that: It also includes two sets of vertical moving components and two limit seats; The two sets of up-and-down moving components are respectively located on the front and rear sides of the worktable; Each set of vertical moving components includes a lower connecting plate, multiple guide columns, an upper mounting plate, and a lifting device. The lower connecting plate is mounted on the equipment frame and arranged in the left-right direction. The multiple guide columns are slidably connected to the lower connecting plate and are spaced apart in the left-right direction. The upper mounting plate is fixedly connected to the multiple guide columns. The two limiting seats are respectively disposed on the left and right sides of the hot riveting assembly, and are respectively disposed opposite to the left and right sides of the first connecting plate; Each of the limiting seats includes a seat body and a plurality of balls. The seat body is arranged in the front-back direction, and the two ends of the seat body are respectively mounted on the upper mounting plates of two sets of up-down moving components. The plurality of balls are rotatably connected to the top surface of the seat body. The output end of the lifting device is connected to the upper mounting plate and is used to drive the upper mounting plate to move up and down, so that the multiple balls have a minimum height and a maximum height. At the minimum height, the multiple balls are limited to the first connecting plate, and the hot riveting assembly performs hot riveting. At the maximum height, its height is greater than the maximum length of the hot riveting assembly.

2. The hot riveting equipment according to claim 1, characterized in that: The limiting seat is provided with multiple ball bearing mounting seats, each ball bearing mounting seat has a mounting cavity, and the top of the mounting seat has an opening that communicates with the mounting cavity; Each ball is disposed within a mounting cavity; A spring is provided inside the mounting cavity. The bottom of the spring abuts against the bottom of the mounting cavity, and the top of the spring pushes up the corresponding ball, causing the ball to protrude from the opening. At the lowest position, the ball is pressed down a first distance by the first connecting plate.

3. The hot riveting equipment according to claim 2, characterized in that: The lower connecting plate is slidably connected to the equipment frame, and the base is slidably connected to the upper mounting plate.

4. The hot riveting equipment according to claim 3, characterized in that: It also includes a positioning plate, which is U-shaped, with flange plates extending outward from the top of both sides of the positioning plate. The two flange plates are placed on the corresponding ball bearings, and the bottom mold is fixedly connected to the positioning plate. The front side of the positioning plate is slidably connected to the up-down moving component.

5. The hot riveting equipment according to claim 4, characterized in that: The bottom of the positioning plate is provided with a positioning post, the length of which does not exceed the first distance. The worktable is provided with a positioning hole, which is positioned and engaged with the positioning post.

6. The hot riveting equipment according to claim 5, characterized in that: The opening of the positioning hole gradually widens to form a flared section.

7. The hot riveting equipment according to claim 2, characterized in that: The ball bearing mounting base includes a lower body and an upper body. The lower body has a mounting groove, and the upper body has a mounting through hole. The mounting through hole is opposite to and communicates with the mounting groove to form the mounting cavity. The top of the inner wall of the mounting through hole gradually tapers to engage with the ball bearing in a limiting manner; A sliding push plate is horizontally provided in the mounting through hole. The sliding push plate is slidably connected to the mounting through hole, and the top of the spring is pressed against the bottom surface of the sliding push plate. The top surface of the ball is pressed against the ball.

8. The hot riveting equipment according to claim 3, characterized in that: A snap-fit ​​component is fixedly connected to the upper mounting plate, and the snap-fit ​​component is provided with a snap-fit ​​part; The bottom of the base is provided with a slot, which is slidably engaged with the locking part.

9. The hot riveting equipment according to claim 1, characterized in that: The seat is hollow, and the inner cavity of the seat extends through its two end faces. The inner sidewall of the seat is provided with reinforcing ribs. There are multiple reinforcing ribs, and the multiple reinforcing ribs are evenly distributed along the circumference; Each of the reinforcing ribs is C-shaped, with the opening of the reinforcing rib facing the center of the base.

10. A method for assembling a hot riveting device, characterized in that, The hot riveting equipment is the hot riveting equipment according to any one of claims 1-9, and the assembly method is as follows: Step S1: Install the worktable, bottom mold, and vertical moving assembly onto the equipment frame, and install the limiting seat onto the upper mounting plate; Multiple hot riveting components are mounted on the first connecting plate to form an upper mold; Step S2: The up-and-down moving component drives the limiting seat to move upward, and then a forklift is used to transport the upper mold so that the two sides of the first connecting plate are respectively placed on the two limiting seats. Step S3: Manually adjust the position of the upper mold so that the first connecting plate is positioned opposite to the upper mold mounting plate; Step S4: The upper mold mounting plate moves downward to assemble with the first connecting plate. After assembly, the upper mold mounting plate drives the upper mold to move upward. Step S5: Install the bottom mold onto the workbench.

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