A welding device for a child seat function system

Abstract

This application relates to the technical field of child seat welding, and in particular to a welding device for a child seat functional system, including a welding table, with support frames on both sides of the welding table, and a mounting cover mounted on the side ends of both support frames. Mounting shafts are rotatably mounted on the side walls of the mounting cover, and a rotating cover is mounted on both mounting shafts via bearings, with the rotating cover fitted inside the mounting cover. Limiting blocks are respectively provided at the lower end of the mounting cover and the side ends of the support frames. A welding assembly is provided between the two mounting shafts. During welding, after fixing the child seat and the parts to be welded, the child seat can be welded from various angles through the rotation of the arc-shaped connecting strip, the sliding of the mounting slider on the arc-shaped connecting strip, and the extension and retraction of the telescopic column, adapting to the welding of complex child seat structures.

Description

Technical Field

[0001] This application relates to the technical field of child seat welding, and in particular to a welding apparatus for a child seat functional system. Background Technology

[0002] A child car seat is a seat specifically designed for children of different weights (or ages) and installed in a car to effectively improve children's safety while traveling. To ensure both safety and comfort, functional modules are added to child car seats, making them versatile. For example, there are modules that grow with the child, and forward- or rear-facing modules that adjust to the child's size, extending the seat's lifespan. Welding, as an industrial processing method, allows these modules to be stably connected to the child car seat.

[0003] In the manufacturing of car seats, welding equipment is used to weld various components. For example, a welding device for automotive seat production, disclosed in CN220902378U, includes: a base; a connecting frame fixedly mounted on the upper end of the base; movable grooves on both sides of the connecting frame; a first screw rotatably connected inside the movable grooves; a movable block threadedly connected to the outer surface of the first screw; a clamp on one side of the movable block; a first motor rotatably connected to the top of the first screw; a mounting seat fixedly connected to the middle of the top of the connecting frame; a sliding groove inside the mounting seat; a second screw rotatably connected inside the sliding groove; a second motor rotatably connected to the right end of the second screw; a slider rotatably connected inside the sliding groove; a first telescopic rod fixedly connected to the bottom of the slider; and a welding gun fixedly mounted at the bottom of the first telescopic rod. This design allows the clamp to have double buffering measures, facilitating seat fixation, improving usability, and increasing welding efficiency.

[0004] However, the above-mentioned existing technology still has some defects when welding child seat function systems: 1. The above-mentioned existing technology uses the second screw to drive the slider to move in the groove, so that the slider drives the first telescopic rod and the welding gun to move to select the welding position. However, in the actual welding process, the shape of the car seat is complex, and the first telescopic rod can only be welded in the vertical direction, which has great limitations for complex welding conditions.

[0005] 2. The aforementioned prior art reduces the pressure on the pressure plate through the dual buffering measures of the first and second buffer springs, thereby fixing and welding the seat. However, in the actual welding process, in order to facilitate fixing the seat, both the seat fixing and welding are exposed, which causes sparks generated during the welding of the seat to splash, posing a safety hazard.

[0006] Based on this, and given the above viewpoints, there is still room for improvement in the existing technology for welding child car seat functional systems. Summary of the Invention

[0007] To solve the above-mentioned technical problems, this application provides a welding device for a child seat function system, which adopts the following technical solution:

[0008] A welding device for a child seat function system includes a welding table, with support frames on both sides of the welding table. A mounting cover is installed on the side ends of the two support frames. Mounting shafts are rotatably mounted on the side walls of the mounting cover. A rotating cover is mounted on the two mounting shafts through bearings and is fitted inside the mounting cover. Limiting blocks are provided at the lower end of the mounting cover and the side ends of the support frames, respectively. A welding assembly is provided between the two mounting shafts.

[0009] Preferably, the welding assembly includes an arc-shaped connecting strip that is installed between two mounting shafts. The arc-shaped connecting strip has a sliding hole, and a mounting slider is slidably disposed on the sliding hole. A telescopic column is installed at the lower end of the mounting slider, and a welding gun head is disposed at the lower end of the telescopic column.

[0010] Preferably, the welding table is provided with a lifting device, which includes mounting blocks at both ends of the welding table. A bidirectional screw is rotatably mounted on both mounting blocks. A rotating handle is provided at one end of the bidirectional screw. Sliding mounting plates are provided on both sides of the welding table. Sliding grooves are respectively opened on the side of the two sliding mounting plates facing each other. Lifting slide plates are slidably connected in both sliding grooves. The two lifting slide plates are symmetrically arranged at both ends of the bidirectional screw and are threadedly connected to the bidirectional screw.

[0011] Preferably, the lifting device further includes a transmission element disposed on the lifting slide plate. The transmission element includes connecting blocks symmetrically disposed on the upper end of the lifting slide plate. A first connecting rod is hinged to the connecting block on the lifting slide plate facing the rotating handle, and a second connecting rod is hinged to the connecting block on the other end of the lifting slide plate. A connecting pin is rotatably mounted in the middle of the first connecting rod, and the end of the connecting pin facing away from the first connecting rod is rotatably connected to the middle of the second connecting rod.

[0012] Preferably, the lifting device further includes a lifting assembly provided on the upper end of the welding platform. Multiple telescopic rods are evenly arranged on the upper end of the welding platform. A lifting platform is installed on the upper end of the telescopic rods. An installation groove is provided on the end of the lifting platform facing the rotating handle. Several connecting grooves are provided on the lower end of the lifting platform. Connecting seats are slidably installed in the connecting grooves, and the connecting seats are respectively hinged to the upper ends of each first connecting rod and second connecting rod.

[0013] Preferably, a connecting device is provided on both sides of the mounting groove. The connecting device includes a connecting frame installed on both sides of the lifting platform. A connecting sliding hole is opened at the upper end of the connecting frame. A connecting column is provided on both inner side walls of the rotating cover, and the connecting column slides in the connecting sliding hole.

[0014] Preferably, the fixing device includes connecting holes on both sides of the mounting groove on the welding table, and a connecting slider is installed on the upper end of the connecting seat mounted on the second connecting rod, and the connecting slider passes through the connecting holes.

[0015] Preferably, a fixing device is provided on one side of the mounting groove. The fixing device includes a fixing lower plate installed on the upper end of one of the connecting blocks, a fixing plate on one side of the fixing lower plate, a fixing upper plate slidably connected to the side end of the fixing plate, and an adjusting column through the middle of the fixing upper plate, and the adjusting column is threadedly connected to the fixing upper plate.

[0016] Preferably, a clamping device is provided on the side of the mounting groove away from the fixed lower plate. The clamping device includes a clamping frame installed on the upper end of a connecting block away from the fixed lower plate. A transverse adjusting rod is rotatably installed through the side plate of the clamping frame, and the transverse adjusting rod is threadedly connected to the side plate of the clamping frame. A transverse adjusting handle is provided at one end of the transverse adjusting rod.

[0017] Preferably, a clamping lower plate is slidably connected to the clamping frame lower plate, a clamping upright plate is provided on one side of the clamping lower plate, and a horizontal adjustment rod is rotatably connected to the side end of the clamping upright plate away from the horizontal adjustment handle.

[0018] Preferably, the clamping device further includes a pressing component disposed on the side end of the clamping upright plate, a clamping upper plate slidably disposed on the side end of the clamping upright plate, a telescopic connecting rod rotatably connected to the upper end of the clamping upper plate, a pressing spring sleeved on the outer side of the telescopic connecting rod, a clamping adjusting rod rotatably connected to the upper end of the telescopic connecting rod, the clamping adjusting rod extending upward through the upper plate of the clamping frame, and the clamping adjusting rod being threadedly connected to the upper plate of the clamping frame, and a clamping adjusting handle disposed at the upper end of the clamping adjusting rod.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. In the welding process of this invention, after fixing the child seat and the parts to be welded, the child seat can be welded from various angles by rotating the arc-shaped connecting strip, sliding the mounting slider on the arc-shaped connecting strip, and coordinating the extension and retraction of the telescopic column. This invention is suitable for welding complex structures of child seats.

[0021] 2. In this invention, after the child seat is fixed at the edge of the lifting platform, during the lifting process, the fixed child seat moves towards the center of the lifting platform, moving it to the welding work position. At the same time, the rotating cover is closed by the connecting column and the connecting slide to prevent the sparks generated during welding from causing danger.

[0022] 3. This invention uses a fixed upper plate and a fixed lower plate to clamp and fix the child seat. At the same time, the clamping upper plate and the clamping lower plate fix the functional components of the child seat. With the adjustment of the horizontal adjustment rod, they are brought closer together so that they can be welded. The elastic clamping force of the downward spring prevents damage to the functional modules of the child seat when clamping them, so as not to affect the welding effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the welding assembly of the present invention.

[0025] Figure 3 This is a schematic diagram of the lifting device of the present invention.

[0026] Figure 4 This is a schematic diagram of the transmission element of the present invention.

[0027] Figure 5 This is a schematic diagram of the lifting component of the present invention.

[0028] Figure 6 This is a schematic diagram of the connecting device of the present invention.

[0029] Figure 7 This is a schematic diagram of the structure between the connecting hole and the connecting slider of the present invention.

[0030] Figure 8 This is a schematic diagram of the fixing device of the present invention.

[0031] Figure 9 This is a schematic diagram of the clamping device of the present invention.

[0032] Figure 10 This is a schematic diagram of the structure of the pressing component of the present invention.

[0033] Explanation of reference numerals in the attached drawings: 11. Welding table; 12. Support frame; 13. Mounting cover; 14. Mounting shaft; 15. Rotating cover; 16. Limiting block; 2. Welding assembly; 21. Arc-shaped connecting strip; 22. Sliding hole; 23. Mounting slider; 24. Telescopic column; 25. Welding gun head; 3. Lifting device; 31. Mounting block; 32. Bidirectional screw; 33. Rotating handle; 34. Sliding mounting plate; 35. Sliding groove; 36. Lifting slide plate; 4. Transmission element; 41. Connecting block; 42. First connecting rod; 43. Second connecting rod; 44. Connecting pin; 5. Lifting assembly; 51. Telescopic rod; 52. Lifting platform; 5 3. Mounting slot; 54. Connecting slot; 55. Connecting seat; 56. Connecting device; 561. Connecting frame; 562. Connecting sliding hole; 563. Connecting column; 61. Communicating hole; 62. Connecting slider; 7. Fixing device; 71. Fixing lower plate; 72. Fixing plate; 73. Fixing upper plate; 74. Adjusting column; 8. Clamping device; 81. Clamping frame; 82. Lateral adjusting rod; 83. Lateral adjusting handle; 84. Clamping lower plate; 85. Clamping upright plate; 86. Pressing assembly; 861. Clamping upper plate; 862. Telescopic connecting rod; 863. Pressing spring; 864. Clamping adjusting rod; 865. Clamping adjusting handle. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1 to 10 This application will be described in further detail.

[0035] This application discloses a welding device for a child seat function system, which can fix the child seat and the parts to be welded separately, and can weld them from various angles.

[0036] Example 1:

[0037] refer to Figure 1 A welding device for a child seat function system includes a welding table 11, with support frames 12 on both sides of the welding table 11. A mounting cover 13 is installed on the side ends of both support frames 12. During welding, the workpiece is placed inside the mounting cover 13 for welding. Mounting shafts 14 are rotatably mounted on both side walls of the mounting cover 13. A rotating cover 15 is mounted on both mounting shafts 14 via bearings, and the rotating cover 15 is fitted inside the mounting cover 13. During welding, the rotating cover 15 is rotated downwards to prevent sparks from flying and causing danger. Limiting blocks 16 are respectively provided at the lower end of the mounting cover 13 and the side ends of the support frames 12 to limit the rotation range of the rotating cover 15 and ensure that the rotating cover 15 can be opened and closed normally.

[0038] Before welding, fix the parts to be welded separately, and then put them into the mounting cover 13. During welding, rotate the rotating cover 15 downward to prevent sparks from flying and causing danger.

[0039] refer to Figure 2This is a schematic diagram of the welding assembly 2 of the present invention. In order to weld the child seat welding parts fixed inside the mounting cover 13, a welding assembly 2 is provided between the two mounting shafts 14. The welding assembly 2 includes an arc-shaped connecting strip 21 installed between the two mounting shafts 14. A sliding hole 22 is provided in the arc-shaped connecting strip 21, and a mounting slider 23 is slidably provided on the sliding hole 22. The precise rotation of the arc-shaped connecting strip 21 and the sliding of the mounting slider 23 can be controlled by the control system to weld various parts of the child seat. A telescopic column 24 is installed at the lower end of the mounting slider 23, and a welding gun head 25 is provided at the lower end of the telescopic column 24. During welding, the telescopic column 24 extends to facilitate the welding gun head 25 to reach the welding part. After welding is completed, the telescopic column 24 retracts to avoid affecting the rotation of the arc-shaped connecting strip 21 and the sliding of the mounting slider 23.

[0040] During welding, after fixing the child seat and the parts to be welded, and closing the rotating cover 15, the child seat can be welded from various angles by rotating the arc-shaped connecting strip 21, sliding the mounting slider 23 on the arc-shaped connecting strip 21, and extending and retracting the telescopic column 24.

[0041] refer to Figure 3 This is a schematic diagram of the lifting device 3 of the present invention. In order to send the part to be welded into the mounting cover 13 for welding during the welding operation, a lifting device 3 is provided on the welding table 11. The lifting device 3 includes mounting blocks 31 provided at both ends of the welding table 11. A bidirectional screw 32 is rotatably mounted on both mounting blocks 31. A rotating handle 33 is provided at one end of the bidirectional screw 32. The bidirectional screw 32 is rotated by rotating the handle 33. Sliding mounting plates 34 are provided on both sides of the welding table 11. Sliding grooves 35 are respectively opened on the side of the two sliding mounting plates 34 facing each other. Lifting slide plates 36 are slidably connected in both sliding grooves 35. The two lifting slide plates 36 are symmetrically arranged at both ends of the bidirectional screw 32 and are threadedly connected to the bidirectional screw 32. When the bidirectional screw 32 rotates, the lifting slide plates 36 move towards or away from each other under the threaded engagement of the bidirectional screw 32 and the lifting slide plates 36.

[0042] Rotating the rotating handle 33 causes the bidirectional screw 32 to rotate. Then, under the threaded engagement of the two lifting slide plates 36 with the bidirectional screw 32, and under the sliding restriction of the sliding groove 35 on the lifting slide plates 36, the two lifting slide plates 36 slide towards or away from each other on the bidirectional screw 32 and in the sliding groove 35.

[0043] refer to Figure 4The diagram shows the structure of the transmission element 4 of the present invention. The transmission element 4 includes connecting blocks 41 symmetrically arranged on the upper end of the lifting slide plate 36. The connecting blocks 41 on the lifting slide plate 36 facing the rotating handle 33 are respectively hinged to the first connecting rod 42, and the connecting blocks 41 on the other end of the lifting slide plate 36 are respectively hinged to the second connecting rod 43. A connecting pin 44 is rotatably installed in the middle of the first connecting rod 42, and the end of the connecting pin 44 away from the first connecting rod 42 is rotatably connected to the middle of the second connecting rod 43. When the two lifting slide plates 36 move towards each other, the lower ends of the first connecting rod 42 and the second connecting rod 43 are close together, and the upper ends of the first connecting rod 42 and the second connecting rod 43 are raised under the connection of the connecting pin 44. Similarly, when the two lifting slide plates 36 move away from each other, the lower ends of the first connecting rod 42 and the second connecting rod 43 are far apart, and the upper ends of the first connecting rod 42 and the second connecting rod 43 are lowered under the connection of the connecting pin 44.

[0044] refer to Figure 5 The diagram shows the structure of the lifting assembly 5 of the present invention. The lifting device 3 also includes a lifting assembly 5 disposed on the upper end of the welding table 11. A plurality of telescopic rods 51 are evenly disposed on the upper end of the welding table 11. A lifting platform 52 is mounted on the upper end of the telescopic rods 51. The telescopic rods 51 restrict the horizontal movement of the lifting platform 52, so that the lifting platform 52 can only rise or fall. An installation groove 53 is provided on the end of the lifting platform 52 facing the rotating handle 33. When the welded parts are fixed, the lifting platform 52 is prevented from affecting the installation of the welded parts. A plurality of connecting grooves 54 are provided on the lower end of the lifting platform 52. Connecting seats 55 are slidably installed in the connecting grooves 54 respectively. The connecting seats 55 are respectively hinged to the upper ends of the first connecting rods 42 and the second connecting rods 43. When the first connecting rods 42 and the second connecting rods 43 rise or fall, the connecting seats 55 slide in the connecting grooves 54, thereby driving the lifting platform 52 to rise or fall.

[0045] Rotating the rotating handle 33 causes the upper ends of the first connecting rod 42 and the second connecting rod 43 to rise or fall. Under the sliding connection between the connecting seat 55 and the connecting groove 54, and the restriction of the lifting platform 52 by the telescopic rod 51, the lifting platform 52 is driven to rise or fall, which facilitates the installation of the welding parts before welding and the lifting of the welding parts into the mounting cover 13 to the welding position at the center of the arc-shaped connecting strip 21 after the welding parts are installed.

[0046] refer to Figure 6 The diagram below shows the structure of the connecting device 56 of the present invention. In order to enable the lifting platform 52 to open and close the rotating cover 15 when it is raised or lowered, connecting devices 56 are respectively provided on both sides of the lifting platform 52. The connecting device 56 includes connecting frames 561 installed on both sides of the lifting platform 52. The upper end of the connecting frame 561 is provided with a connecting sliding hole 562. Connecting columns 563 are respectively provided on the two inner side walls of the rotating cover 15, and the connecting columns 563 slide in the connecting sliding hole 562.

[0047] When the lifting platform 52 rises, under the restriction of the connecting sliding hole 562, the connecting column 563 slides to the end of the connecting sliding hole 562 away from the rotating handle 33, thereby driving the rotating cover 15 to close. This achieves the purpose of closing the rotating cover 15 when the welded part moves to the welding position at the center of the arc-shaped connecting strip 21, preventing the subsequent welding sparks from causing danger.

[0048] Example 2:

[0049] refer to Figure 7 Based on Embodiment 1, in order to fix the welded parts and send the welded parts into the middle of the lifting platform 52 when lifting the lifting platform 52, fixing devices 7 are provided on both sides of the mounting groove 53. The fixing devices 7 include connecting holes 61 opened on both sides of the mounting groove 53 on the welding platform 11, and the connecting holes 61 penetrate to the two connecting grooves 54 facing the rotating handle 33. A connecting slider 62 is installed on the upper end of the connecting seat 55 installed on the second connecting rod 43, and the connecting slider 62 penetrates through the connecting hole 61. When the connecting seat 55 facing the rotating handle 33 slides in the connecting groove 54, it drives the connecting slider 62 to slide in the connecting sliding hole 562.

[0050] The lifting platform 52 is located at the lowest end. After the welded part is fixed, the lifting platform 52 is raised by rotating the handle 33, which drives the connecting slider 62 to slide towards the middle of the lifting platform 52 in the connecting hole 61, so that the welded part is moved directly under the arc-shaped connecting strip 21 for welding.

[0051] refer to Figure 8 This is a schematic diagram of the fixing device 7 of the present invention. In order to fix the part to be welded, that is, to fix the child seat component that has not yet been fitted with functional modules, a fixing device 7 is provided on one side of the mounting groove 53. The fixing device 7 includes a fixing lower plate 71 installed on the upper end of one of the connecting blocks 41. A fixing plate 72 is provided on one side of the fixing lower plate 71. A fixing upper plate 73 is slidably connected to the side end of the fixing plate 72. The clamping parts of the fixing upper plate 73 and the fixing lower plate 71 can be replaced according to the type of component to be clamped, so that the clamping parts of the fixing upper plate 73 and the fixing lower plate 71 fit with the clamped component, thereby fixing the child seat component. An adjusting column 74 is provided through the middle of the fixing upper plate 73, and the adjusting column 74 is connected to the fixing upper plate 73 by a thread. When the adjusting column 74 rotates, the fixing upper plate 73 moves up and down under the threaded engagement of the adjusting column 74 and the fixing upper plate 73.

[0052] Place the child seat component, which has not yet been fitted with functional modules, between the lower fixed plate 71 and the upper fixed plate 73. Then rotate the adjusting column 74 so that the upper fixed plate 73 and the lower fixed plate 71 together clamp and fix the child seat component.

[0053] refer to Figure 9This is a schematic diagram of the clamping device 8 of the present invention. In order to fix another child seat functional module to be welded, a clamping device 8 is provided on the side of the mounting groove 53 away from the fixing lower plate 71. The clamping device 8 includes a clamping frame 81 installed on the upper end of the connecting block 41 away from the fixing lower plate 71. A transverse adjusting rod 82 is rotatably installed through the side plate of the clamping frame 81, and the transverse adjusting rod 82 is threadedly connected to the side plate of the clamping frame 81. When the transverse adjusting rod 82 is rotated, the transverse adjusting rod 82 is rotated through the side plate of the clamping frame 81. 2. With the threaded connection to the side plate of the clamping frame 81, the lateral adjustment rod 82 moves axially. One end of the lateral adjustment rod 82 is provided with a lateral adjustment handle 83. A clamping lower plate 84 is slidably connected to the lower plate of the clamping frame 81. A clamping upright plate 85 is provided on one side of the clamping lower plate 84. The end of the lateral adjustment rod 82 away from the lateral adjustment handle 83 is rotatably connected to the side end of the clamping upright plate 85. When the lateral adjustment rod 82 moves, the clamping lower plate 84 is driven to slide on the lower plate of the clamping frame 81 through the clamping upright plate 85.

[0054] Rotate the lateral adjustment handle 83 to rotate the lateral adjustment rod 82. Then, with the lateral adjustment rod 82 threadedly connected to the side plate of the clamping frame 81, the clamping plate 84 slides on the lower plate of the clamping frame 81 through the clamping plate 85, so that the child seat function module is close to the child seat component, which is convenient for subsequent direct welding.

[0055] refer to Figure 10 The diagram shows the structure of the pressing component 86 of the present invention. The clamping device 8 also includes a pressing component 86 disposed on the side of the clamping upright plate 85, a clamping upper plate 861 slidably disposed on the side of the clamping upright plate 85, a telescopic connecting rod 862 rotatably connected to the upper end of the clamping upper plate 861, a pressing spring 863 sleeved on the outer side of the telescopic connecting rod 862 to provide the clamping upper plate 861 with downward pressure on the clamping child seat function module, a clamping adjusting rod 864 rotatably connected to the upper end of the telescopic connecting rod 862, the clamping adjusting rod 864 extending upward through the upper plate of the clamping frame 81, and the clamping adjusting rod 864 is threadedly connected to the upper plate of the clamping frame 81, and a clamping adjusting handle 865 is disposed on the upper end of the clamping adjusting rod 864. When the clamping adjusting rod 864 is rotated by the clamping adjusting handle 865, the clamping upper plate 861 slides up and down.

[0056] When the clamping adjustment lever 864 is rotated by the clamping adjustment lever 865, the clamping adjustment lever 864 is threadedly connected to the upper plate of the clamping frame 81, which drives the upper clamping plate 861 to move up and down, thereby clamping or releasing the child seat function module. At the same time, when the upper clamping plate 861 and the lower clamping plate 84 clamp the child seat function module together, the downward pressure spring 863 provides downward pressure for clamping the child seat function module. The elastic clamping force of the downward pressure spring 863 prevents damage to the child seat function module when clamping it.

[0057] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A welding device for a child seat function system, comprising a welding table (11), wherein support frames (12) are respectively provided on both sides of the welding table (11), and a mounting cover (13) is commonly installed on the side ends of the two support frames (12), mounting shafts (14) are rotatably mounted on the side walls of the mounting cover (13), and a rotating cover (15) is commonly mounted on the two mounting shafts (14) through bearings, and the rotating cover (15) is sleeved inside the mounting cover (13), wherein a limit stop (16) is respectively provided at the lower end of the mounting cover (13) and the side end of the support frame (12), characterized in that: A welding assembly (2) is provided between the two mounting shafts (14); The welding assembly (2) includes an arc-shaped connecting strip (21) installed between two mounting shafts (14). A sliding hole (22) is provided in the arc-shaped connecting strip (21). A mounting slider (23) is slidably arranged on the sliding hole (22). A telescopic column (24) is installed at the lower end of the mounting slider (23). A welding gun head (25) is provided at the lower end of the telescopic column (24). The welding table (11) is provided with a lifting device (3). The lifting device (3) includes mounting blocks (31) at both ends of the welding table (11). A bidirectional screw (32) is rotatably mounted on both mounting blocks (31). A rotating handle (33) is provided at one end of the bidirectional screw (32). Sliding mounting plates (34) are provided on both sides of the welding table (11). Sliding grooves (35) are respectively opened on the side of the two sliding mounting plates (34) facing each other. Lifting slide plates (36) are slidably connected in the two sliding grooves (35). The two lifting slide plates (36) are symmetrically arranged at both ends of the bidirectional screw (32) and threadedly connected to the bidirectional screw (32). The lifting device (3) further includes a transmission element (4) provided on the lifting slide plate (36). The transmission element (4) includes connecting blocks (41) symmetrically arranged on the upper end of the lifting slide plate (36). The connecting blocks (41) on the lifting slide plate (36) facing the rotating handle (33) are respectively hinged to a first connecting rod (42), and the connecting blocks (41) on the lifting slide plate (36) at the other end are respectively hinged to a second connecting rod (43). A connecting pin (44) is rotatably installed in the middle of the first connecting rod (42), and the end of the connecting pin (44) facing away from the first connecting rod (42) is rotatably connected to the middle of the second connecting rod (43). The lifting device (3) also includes a lifting assembly (5) provided on the upper end of the welding table (11). Multiple telescopic rods (51) are evenly provided on the upper end of the welding table (11). A lifting platform (52) is installed on the upper end of the telescopic rods (51). An installation groove (53) is provided on the end of the lifting platform (52) facing the rotating handle (33). Several connecting grooves (54) are provided on the lower end of the lifting platform (52). Connecting seats (55) are slidably installed in the connecting grooves (54), and the connecting seats (55) are respectively hinged to the upper ends of each first connecting rod (42) and second connecting rod (43). The lifting platform (52) is provided with connecting devices (56) on both sides. The connecting devices (56) include connecting frames (561) installed on both sides of the lifting platform (52). The upper end of the connecting frame (561) is provided with a connecting sliding hole (562). The two inner side walls of the rotating cover (15) are provided with connecting columns (563), and the connecting columns (563) slide in the connecting sliding hole (562). Fixing devices (7) are provided on both sides of the mounting groove (53). The fixing devices (7) include connecting holes (61) on both sides of the mounting groove (53) on the welding table (11). A connecting slider (62) is installed on the upper end of the connecting seat (55) installed on the second connecting rod (43), and the connecting slider (62) passes through the connecting hole (61). A fixing device (7) is provided on one side of the mounting groove (53). The fixing device (7) includes a fixing lower plate (71) installed on the upper end of one of the connecting sliders (62). A fixing plate (72) is provided on one side of the fixing lower plate (71). A fixing upper plate (73) is slidably connected to the side end of the fixing plate (72). An adjusting column (74) is provided through the middle of the fixing upper plate (73), and the adjusting column (74) is connected to the fixing upper plate (73) by a thread.

2. The welding device for a child seat function system according to claim 1, characterized in that: The mounting groove (53) is provided with a clamping device (8) on the side away from the fixed lower plate (71). The clamping device (8) includes a clamping frame (81) installed on the upper end of the connecting slider (62) away from the fixed lower plate (71). A transverse adjusting rod (82) is rotatably installed through the side plate of the clamping frame (81), and the transverse adjusting rod (82) is threadedly connected to the side plate of the clamping frame (81). A transverse adjusting handle (83) is provided at one end of the transverse adjusting rod (82).

3. The welding device for a child seat function system according to claim 2, characterized in that: A clamping lower plate (84) is slidably connected to the lower plate of the clamping frame (81). A clamping upright plate (85) is provided on one side of the clamping lower plate (84), and the end of the horizontal adjustment rod (82) opposite to the horizontal adjustment handle (83) is rotatably connected to the side end of the clamping upright plate (85).

4. The welding device for a child seat function system according to claim 3, characterized in that: The clamping device (8) further includes a pressing component (86) provided on the side of the clamping upright plate (85), a clamping upper plate (861) slidably provided on the side of the clamping upright plate (85), a telescopic connecting rod (862) rotatably connected to the upper end of the clamping upper plate (861), a pressing spring (863) sleeved on the outer side of the telescopic connecting rod (862), a clamping adjusting rod (864) rotatably connected to the upper end of the telescopic connecting rod (862), the clamping adjusting rod (864) extends upward through the upper plate of the clamping frame (81), and the clamping adjusting rod (864) is threadedly connected to the upper plate of the clamping frame (81), and a clamping adjusting handle (865) is provided at the upper end of the clamping adjusting rod (864).

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