Welding equipment for chassis assembly of children's toy cars

Abstract

The welding equipment for the chassis assembly of a children's toy car relates to the technical field of welding equipment, including a support platform, the support platform is a horizontally arranged square platform, a welding workbench is provided on the support platform for lifting, the welding workbench is a horizontally arranged square platform, a loading and unloading conveying assembly is provided along the support platform in the horizontal direction, and a multi-point welding assembly, a wheel guard plate clamping assembly, a side panel clamping assembly and a frame positioning assembly are provided on the welding workbench. The invention solves the problems that when the welding equipment in the traditional technology is used for the chassis welding assembly of the children's toy car, the welding parts of different shapes and sizes exist, which makes the clamping and positioning inconvenient, affects the welding quality, the welding equipment with a single function cannot adapt to multi-point welding, reduces the welding efficiency, and the chassis loading and unloading methods before and after welding are poor in versatility, which destroys the continuity of welding conveying.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to welding equipment used for a chassis assembly of a children's toy car. Background Art

[0002] Children's toy cars are toys designed for children. They usually have bright colors, rich sounds and easy operation to attract children's attention. Toy cars are not only a recreational tool for children, but also can train children's spatial thinking, logical thinking, number sense, observation, color matching, hand-eye coordination and other abilities through a series of early education games, so that they can experience the fun of driving while also exercising their reaction speed and operation skills.

[0003] There are many types of toy cars, including cars, trains, trucks, excavators, remote control cars, etc. Each vehicle has its own unique characteristics and functions. In recent years, large electric cars that can be driven by children have become increasingly popular. This type of children's toy car is small in size and simple in structure. It can be regarded as a smaller version of an ordinary car, and it also has a complete power system, chassis, body and driving control system.

[0004] From the manufacturing process, the production of children's toy cars mainly includes the stamping of parts, anti-rust spraying of door panels, and welding and assembly of structural parts. In terms of the specific welding process, the main work content is to combine and fix the stamped bottom frame, side panels and wheel guards by welding to obtain a complete body chassis. The above welding operations usually need to be performed on professional welding equipment. However, since the welding process involves multiple welding parts with complex shapes, and the parts are not simply one-to-one welding, this often leads to many problems when using existing equipment to weld the chassis assembly of children's toy cars, including:

[0005] 1. Welding parts of different shapes and sizes will lead to inconvenient clamping and positioning. On the one hand, due to the diversity of shapes and sizes of welding parts, a single clamping method is difficult to meet complex clamping requirements. On the other hand, after each part is clamped, it is necessary to move the welding part to a specific position and merge it with other welding parts. During this period, part feeding interference is prone to occur. The clamping and positioning accuracy of the welding parts will directly affect the welding quality.

[0006] 2. Single-function welding equipment cannot adapt to the problem of multi-point welding. Specifically, in the actual welding process, the bottom frame is used as the welding base, and the four wheel guards and two side panels are welded to the bottom frame respectively. In addition, the wheel guards and side panels need to be welded and fixed separately. From the distribution of welding points, in order to increase the welding strength, multiple welding points are usually set on the inner and outer sides of the side panels. The above welding requirements will increase the welding difficulty to varying degrees, which requires frequent technical adjustments to the welding equipment during the welding process, reducing the welding efficiency and affecting the welding effect.

[0007] 3. The problem of inconvenient loading and unloading of the chassis before and after welding. Specifically, the loading before welding is all scattered welding parts, while the unloading after welding is the welded integral chassis, that is, the chassis will change in shape before and after welding. This change will directly affect the loading and unloading process, making the loading and unloading method difficult to apply to unloading and unloading, which destroys the continuity of loading and unloading.

[0008] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0009] In view of the defects in the prior art, the present invention provides welding equipment for the chassis assembly of a children's toy car, so as to solve the problems that when the welding equipment in the traditional technology is used for the chassis welding assembly of a children's toy car, there are welding parts of different shapes and sizes that make clamping and positioning inconvenient, affecting the welding quality; single-function welding equipment cannot adapt to multi-point welding, reducing welding efficiency; the chassis loading and unloading methods before and after welding have poor versatility, which destroys the continuity of welding transportation, etc.

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] The welding equipment used for the chassis assembly of a children's toy car includes a supporting platform, which is a horizontally arranged square platform. A welding workbench is provided above the supporting platform for lifting and lowering. The welding workbench is a horizontally arranged square platform. A loading and unloading conveying assembly is arranged horizontally along the supporting platform. A multi-point welding assembly, a wheel guard plate clamping assembly, a side panel clamping assembly and a frame positioning assembly are respectively arranged on the welding workbench.

[0012] As an optimized solution, a square lifting and lowering connection port is opened in the middle of the upper surface of the welding workbench, and four hydraulic telescopic cylinders symmetrical in pairs are fixedly connected to one side of the upper surface of the supporting platform, and the upper telescopic ends of the hydraulic telescopic cylinders are fixedly connected to the lower surface of the welding workbench.

[0013] As an optimized solution, the multi-point welding assembly includes two symmetrically arranged fixed bases, which are respectively fixed to the centers of two lateral outer end surfaces of the welding workbench, and the upper surface of each fixed base is respectively fixed with a vertical telescopic cylinder.

[0014] As an optimized solution, the multi-point welding assembly also includes a sliding limit frame, which is a U-shaped frame with an opening facing downward, and the upper telescopic end of the telescopic cylinder is fixedly connected to the lower end surface of the vertical part of the sliding limit frame.

[0015] As an optimized solution, a laterally extending limiting groove is provided on the upper surface of the sliding limit frame, a U-shaped sliding frame is sleeved on the sliding limit frame, a driving pulley is rotatably provided on the upper part of the U-shaped sliding frame, the lower end of the driving pulley is abutted against the bottom surface of the limiting groove, a stepper motor is fixedly connected to the longitudinal outer side wall of the U-shaped sliding frame, and the end of the output shaft of the stepper motor passes through the U-shaped sliding frame and is fixedly connected to the side end surface of the driving pulley.

[0016] As an optimized solution, a steering drive motor is fixedly connected to the center of the inner bottom surface of the U-shaped sliding frame, the end of the output shaft of the steering drive motor passes downward through the U-shaped sliding frame and is fixedly connected to a square steering seat, and a horizontal extension and telescopic cylinder is fixedly connected to each lateral outer end surface of the square steering seat, and the telescopic end of the extension and telescopic cylinder is fixedly connected to a swing limit frame, and the swing limit frame is a square frame with upper and lower openings. A welding swing arm is respectively provided in each of the swing limit frames, and an automatic welding gun is fixed to the lower end of the welding swing arm.

[0017] As an optimized solution, a swing drive motor is fixedly connected to the longitudinal side end face of the swing limit frame, and the output shaft end of the swing drive motor passes through the swing limit frame and is fixedly connected to the side end face of the welding swing arm.

[0018] As an optimized solution, the loading and unloading conveying assembly includes two longitudinally extending conveying rollers, and the two conveying rollers are horizontally arranged at the two ends of the supporting platform. Vertical conveying splints are respectively provided on the longitudinal sides of each conveying roller. The conveying roller is rotatably installed between the two conveying splints. A conveying drive motor is fixedly connected to the outer side wall of the conveying splint near the upper end, and the output shaft end of the conveying drive motor passes through the conveying splint and is fixedly connected to the side end surface of the conveying roller.

[0019] As an optimized solution, a conveyor belt is sleeved between the two conveying rollers, and the conveyor belt is arranged below the welding workbench and directly facing the lifting connecting port.

[0020] As an optimized solution, the loading and unloading conveying assembly also includes two symmetrically arranged horizontal pallets, which are transversely extending strip plates. The two horizontal pallets are lifted and lowered in the lifting connecting port, and the two horizontal pallets are arranged on both sides of the longitudinal direction of the conveyor belt. The upper surface of the supporting platform corresponds to each of the horizontal pallets, and is respectively fixedly connected to two transversely symmetrical lifting and telescopic cylinders, and the upper telescopic end of the lifting and telescopic cylinder is fixedly connected to the lower surface of the horizontal pallet.

[0021] As an optimized solution, the wheel guard plate clamping assembly includes four clamping guide frames that are symmetrical in pairs. The clamping guide frames are square frames that extend longitudinally and are open at the top and bottom. The lower ends of the clamping guide frames are fixedly connected to the upper surface of the welding workbench.

[0022] As an optimized solution, a rotary drive motor is fixedly connected to the longitudinal outer end surface of each clamping guide frame, and the output shaft end of the rotary drive motor passes through the clamping guide frame and is fixedly connected to a longitudinally extending drive threaded rod.

[0023] As an optimized solution, a square slide is respectively mounted in each of the clamping guide frames, the driving threaded rod passes through and is threadedly connected to the square slide, and a wheel guard plate clamp is respectively fixedly connected to the upper end surface of each of the square slides.

[0024] As an optimized solution, the upper surface of the welding workbench is provided with four sliding limit grooves which are symmetrical in pairs, and a driving slider is slidably mounted in each of the sliding limit grooves. A sliding drive motor is fixedly connected to each of the sliding limit grooves on the lateral outer end surface of the welding workbench. The output shaft end of each sliding drive motor extends into the sliding limit groove and is fixedly connected with a laterally extending threaded screw, and the threaded screw passes through and is threadedly connected to the corresponding driving slider.

[0025] As an optimized solution, the side panel clamping assembly includes four T-shaped movable seats, and the four T-shaped movable seats are respectively fixedly connected to the four driving sliders, and a flip driving motor is respectively fixedly connected to the lateral outer end face of each T-shaped movable seat, and the output shaft end of the flip driving motor passes through the T-shaped movable seat and is fixedly connected to a flip clamping seat, and a clamping telescopic cylinder is fixedly connected to the longitudinal side end face of the flip clamping seat, and the telescopic end of the clamping telescopic cylinder is fixedly connected to a square transfer seat, and the upper surface of the square transfer seat is telescopically provided with a side panel clamping seat.

[0026] As an optimized solution, the frame positioning assembly includes four L-shaped positioning seats that are symmetrical in pairs, and the four L-shaped positioning seats are arranged on both longitudinal sides of the sliding limit frame. The upper surface of the welding workbench is provided with a connecting groove corresponding to each of the L-shaped positioning seats, and a vertical telescopic cylinder is fixedly connected in each of the connecting grooves, and the upper telescopic end of the vertical telescopic cylinder is fixedly connected to the lower surface of the L-shaped positioning seat.

[0027] As an optimized solution, each of the L-shaped positioning seats is fixedly connected to a horizontal telescopic cylinder, the telescopic end of the horizontal telescopic cylinder is fixedly connected to a frame clamping seat, and two vertically symmetrical positioning clamping plates are telescopically arranged in the frame clamping seat.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides a frame positioning assembly, a side panel clamping assembly and a wheel guard clamping assembly respectively for clamping and positioning the bottom frame, the side panel and the wheel guard. Each assembly operates independently and does not interfere with each other when clamping its own welding assembly, and can combine multiple welding components together through telescopic or moving driving methods after each welding assembly is clamped, so as to facilitate the precise positioning of the subsequent welding process and thus improve the welding quality; specifically, the frame positioning assembly mainly clamps and fixes the bottom frame from both sides through four frame clamping seats arranged symmetrically in the horizontal direction, and adjusts the clamping height of the bottom frame by controlling the telescopic movement of the vertical telescopic cylinder; the side panel clamping assembly clamps the side panels through two side panel clamping seats located on the same side, and converts the horizontally clamped side panels into a vertical welding state through the drive of the flipping drive motor; the wheel guard clamping assembly mainly clamps and loads four wheel guards through four wheel guard clamping seats, and drives the wheel guard clamping seats to move longitudinally to enable the wheel guards to be docked and mounted on the bottom frame.

[0030] The multi-point welding assembly provided in the present invention can realize adaptive welding of multiple welding parts and different points through adjustment operations such as sliding, telescoping, steering and swinging, and realize multi-point welding of the inner and outer sides of the side panel without changing the clamping state of the welding parts, thereby greatly improving the welding efficiency. Specifically, the multi-point welding assembly includes a sliding limit frame that is lifted and lowered, and a U-shaped sliding frame that slides laterally is sleeved on the sliding limit frame. The precise positioning of multiple welding points can be achieved by driving the U-shaped sliding frame to slide along the sliding limit frame. A square steering seat is rotatably provided at the lower end of the U-shaped sliding frame, and swing limit frames are telescopically provided on both sides of the square steering seat. A welding swing arm is swingably provided in the swing limit frame, and an automatic welding gun is fixed at the lower end of the welding swing arm. The welding swing arm is driven to swing by a swing drive motor to adjust the welding starting angle, and the welding switching of the inner and outer sides of the side panel and different positions can be achieved by controlling the extension and telescopic cylinder to telescopically drive the swing limit frame to move.

[0031] The loading and unloading conveying assembly provided in the present invention can realize the loading and conveying of the bottom frame and the unloading and conveying of the welding chassis, and improve the conveying efficiency of the welding parts by maintaining the continuity of the conveying process, wherein the lateral conveying of the loading and unloading materials is mainly realized by the conveying driving motor driving the conveying roller to rotate, and the conveying roller then drives the conveyor belt to circulate and roll. Furthermore, after the bottom frame is conveyed to a specific position, by controlling the extension of the lifting and telescopic cylinder, the two horizontal support plates are driven to rise respectively, so that the bottom frame as a whole can be lifted upward, so that it is separated from the conveyor belt and gradually passes through the lifting connecting port to be transferred to the top of the welding workbench for welding processing; similarly, after welding is completed, each clamping mechanism releases the clamping of the overall chassis, and by controlling the retraction of the lifting and telescopic cylinder and the extension of the hydraulic telescopic cylinder, the welded chassis assembly can be transferred to the conveyor belt again, and lateral unloading and conveying can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0033] Figure 1 A half-section schematic diagram of the internal structure of each component in the present invention in the main viewing direction;

[0034] Figure 2 It is a schematic cross-sectional view of the internal structure of each component in the present invention in a top view direction;

[0035] Figure 3 It is a partial half-section schematic diagram of each component in the present invention in the side view direction;

[0036] Figure 4 It is a schematic diagram of the external overall structure of the present invention in a side view direction;

[0037] Figure 5 It is a schematic diagram of the external overall structure of the present invention in the main viewing direction;

[0038] Figure 6 It is a schematic diagram of the external overall structure of the present invention in a top view;

[0039] Figure 7 It is a schematic diagram of the assembly and positioning state of the welding components of the chassis of the children's toy car in the present invention in the top view;

[0040] Figure 8 The figure is a schematic diagram of the welding assembly state of the chassis of the children's toy car in the present invention in the main viewing direction.

[0041] In the figure: 1-support platform, 2-welding workbench, 3-lifting connection port, 4-hydraulic telescopic cylinder, 5-conveying roller, 6-conveying splint, 7-conveying drive motor, 8-conveying belt, 9-horizontal support plate, 10-lifting telescopic cylinder, 11-fixed base, 12-telescopic cylinder, 13-sliding limit frame, 14-limiting slide, 15-U-shaped slide frame, 16-driving pulley, 17-stepping motor, 18-steering drive motor, 19-square steering seat, 20-extension telescopic cylinder, 21-swing limit frame, 22-welding swing arm, 23-automatic welding gun, 24-swing drive motor, 25-clamping guide Toward frame, 26-rotation drive motor, 27-drive threaded rod, 28-square slide seat, 29-wheel guard plate clamp seat, 30-sliding limit groove, 31-drive slider, 32-sliding drive motor, 33-threaded screw, 34-T-type moving seat, 35-flip drive motor, 36-flip clamp seat, 37-clamping telescopic cylinder, 38-square transfer seat, 39-side panel clamp seat, 40-L-type positioning seat, 41-connecting groove, 42-vertical telescopic cylinder, 43-horizontal telescopic cylinder, 44-frame clamp seat, 45-positioning splint, 46-bottom frame, 47-wheel guard plate, 48-side panel. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0043] like Figures 1 to 8 As shown, the welding equipment for the chassis assembly of a children's toy car includes a supporting platform 1, which is a horizontally arranged square platform. A welding workbench 2 is provided above the supporting platform 1 for lifting. The welding workbench 2 is a horizontally arranged square platform. A loading and unloading conveying assembly is arranged horizontally on the supporting platform 1. The welding workbench 2 is respectively provided with a multi-point welding assembly, a wheel guard plate clamping assembly, a side panel clamping assembly and a frame positioning assembly.

[0044] A square lifting and lowering communication port 3 is provided in the middle of the upper surface of the welding workbench 2 , and four hydraulic telescopic cylinders 4 symmetrically arranged in pairs are fixedly connected to one side of the upper surface of the supporting platform 1 , and the upper telescopic ends of the hydraulic telescopic cylinders 4 are fixedly connected to the lower surface of the welding workbench 2 .

[0045] The loading and unloading conveying assembly includes two longitudinally extending conveying rollers 5, which are laterally arranged at the two ends of the supporting platform 1. Vertical conveying splints 6 are respectively provided on the longitudinal sides of each conveying roller 5. The conveying roller 5 is rotatably installed between the two conveying splints 6. A conveying drive motor 7 is fixedly connected to the outer side wall of the conveying splint 6 near the upper end, and the output shaft end of the conveying drive motor 7 passes through the conveying splint 6 and is fixedly connected to the side end surface of the conveying roller 5.

[0046] A conveyor belt 8 is sleeved between the two conveyor rollers 5 . The conveyor belt 8 is arranged below the welding workbench 2 and directly facing the lifting connecting port 3 .

[0047] The loading and unloading conveying assembly also includes two symmetrically arranged horizontal pallets 9, which are laterally extending strip plates. The two horizontal pallets 9 are lifted and lowered in the lifting connecting port 3. The two horizontal pallets 9 are arranged on both sides of the conveyor belt 8 in the longitudinal direction. The upper surface of the supporting platform 1 corresponds to each horizontal pallet 9 and is fixedly connected to two laterally symmetrical lifting and telescopic cylinders 10. The upper telescopic end of the lifting and telescopic cylinder 10 is fixedly connected to the lower surface of the horizontal pallet 9.

[0048] The multi-point welding assembly includes two symmetrically arranged fixed bases 11 , which are respectively fixedly connected to the centers of two transverse outer end surfaces of the welding workbench 2 , and a vertical telescopic cylinder 12 is respectively fixedly connected to the upper surface of each fixed base 11 .

[0049] The multi-point welding assembly further comprises a sliding limit frame 13 , which is a U-shaped frame with its opening facing downwards. The upper telescopic end of the telescopic cylinder 12 is fixedly connected to the lower end surface of the vertical portion of the sliding limit frame 13 .

[0050] A laterally extending limiting groove 14 is provided on the upper surface of the sliding limiting frame 13, and a U-shaped sliding frame 15 is sleeved on the sliding limiting frame 13. A driving pulley 16 is rotatably provided on the upper part of the U-shaped sliding frame 15, and the lower end of the driving pulley 16 is against the bottom surface of the limiting groove 14. A stepper motor 17 is fixedly connected to the longitudinal outer side wall of the U-shaped sliding frame 15, and the end of the output shaft of the stepper motor 17 passes through the U-shaped sliding frame 15 and is fixedly connected to the side end surface of the driving pulley 16.

[0051] A steering drive motor 18 is fixedly connected to the center of the inner bottom surface of the U-shaped sliding frame 15. The end of the output shaft of the steering drive motor 18 passes downward through the U-shaped sliding frame 15 and is fixedly connected to a square steering seat 19. A horizontal extension and telescopic cylinder 20 is fixedly connected to each lateral outer end surface of the square steering seat 19. The telescopic end of the extension and telescopic cylinder 20 is fixedly connected to a swing limit frame 21. The swing limit frame 21 is a square frame with upper and lower openings. A welding swing arm 22 is respectively provided in each swing limit frame 21, and an automatic welding gun 23 is fixed to the lower end of the welding swing arm 22.

[0052] A swing drive motor 24 is fixedly connected to the longitudinal side end surface of the swing limit frame 21 , and the output shaft end of the swing drive motor 24 passes through the swing limit frame 21 and is fixedly connected to the side end surface of the welding swing arm 22 .

[0053] The wheel guard plate clamping assembly includes four clamping guide frames 25 that are symmetrical in pairs. The clamping guide frames 25 are square frames that extend longitudinally and are open at the top and bottom. The lower ends of the clamping guide frames 25 are fixedly connected to the upper surface of the welding workbench 2.

[0054] A rotation drive motor 26 is fixedly connected to the longitudinal outer end surface of each clamping guide frame 25 , and the output shaft end of the rotation drive motor 26 passes through the clamping guide frame 25 and is fixedly connected to a longitudinally extending drive threaded rod 27 .

[0055] A square slide 28 is respectively clamped in each clamping guide frame 25 , and a driving threaded rod 27 passes through and is threadedly connected to the square slide 28 . A wheel guard plate clamp seat 29 is respectively fixed to the upper end surface of each square slide 28 .

[0056] The upper surface of the welding workbench 2 is provided with four sliding limit grooves 30 that are symmetrical in pairs, and a driving slider 31 is slidably mounted in each sliding limit groove 30. A sliding drive motor 32 is fixedly connected to each sliding limit groove 30 on the lateral outer end surface of the welding workbench 2. The end of the output shaft of each sliding drive motor 32 extends into the sliding limit groove 30 and is fixedly connected to a laterally extending threaded screw 33. The threaded screw 33 passes through and is threadedly connected to the corresponding driving slider 31.

[0057] The side panel clamping assembly includes four T-shaped movable seats 34, and the four T-shaped movable seats 34 are respectively fixedly connected to the four driving sliders 31. A flip driving motor 35 is respectively fixedly connected to the lateral outer end face of each T-shaped movable seat 34. The end of the output shaft of the flip driving motor 35 passes through the T-shaped movable seat 34 and is fixedly connected to a flip clamping seat 36. A clamping telescopic cylinder 37 is fixedly connected to the longitudinal side end face of the flip clamping seat 36. The telescopic end of the clamping telescopic cylinder 37 is fixedly connected to a square transfer seat 38. The upper surface of the square transfer seat 38 is telescopically provided with a side panel clamping seat 39.

[0058] The frame positioning assembly includes four L-shaped positioning seats 40 that are symmetrical in pairs. The four L-shaped positioning seats 40 are arranged on both longitudinal sides of the sliding limit frame 13. The upper surface of the welding workbench 2 is provided with a connecting groove 41 corresponding to each L-shaped positioning seat 40. A vertical telescopic cylinder 42 is fixedly connected in each connecting groove 41, and the upper telescopic end of the vertical telescopic cylinder 42 is fixedly connected to the lower surface of the L-shaped positioning seat 40.

[0059] A horizontal telescopic cylinder 43 is fixedly connected to each L-shaped positioning seat 40 , and a frame clamping seat 44 is fixedly connected to the telescopic end of the horizontal telescopic cylinder 43 . Two vertically symmetrical positioning clamping plates 45 are telescopically arranged in the frame clamping seat 44 .

[0060] When the present invention is used: firstly, the bottom frame 46 to be assembled and welded is placed flat on the conveyor belt 8, and the conveying drive motor 7 is started. The conveying drive motor 7 drives the conveying roller 5 to rotate, and the bottom frame 46 is transported horizontally to the bottom of the welding workbench 2; the hydraulic telescopic cylinder 4 is controlled to shorten, and the welding workbench 2 is driven to descend as a whole. At the same time, the lifting and telescopic cylinder 10 is controlled to extend, and the two horizontal support plates 9 are driven to rise respectively, and the bottom frame 46 is lifted upward as a whole, so that it is separated from the conveyor belt 8 and gradually passes through the lifting and connecting port 3; the vertical telescopic cylinder 42 is controlled to extend, and the clamping height of the L-shaped positioning seat 40 is adjusted. At the same time, the horizontal telescopic cylinder 43 is controlled to extend, and the frame clamping seat 44 is used to adjust the clamping height of the L-shaped positioning seat 40. The bottom frame 46 is clamped and positioned from both sides; the four wheel guards 47 are clamped onto the wheel guard clamp seats 29, and the four rotating drive motors 26 are started respectively. The rotating drive motors 26 drive the driving threaded rods 27 to rotate, and drive the square slide 28 to move longitudinally along the clamping guide frame 25, thereby driving the wheel guards 47 to move to the welding position and docking and fixing them with the bottom frame 46; the side panels 48 are clamped onto the two side panel clamp seats 39 on the same side, and the four sliding drive motors 32 are started respectively. The sliding drive motors 32 drive the threaded screw 33 to rotate, and then control the driving slider 31 to slide laterally along the sliding limit groove 30, adjust the clamping spacing, and avoid the welding parts. ; Start the flip drive motor 35, the flip drive motor 35 drives the flip clamping seat 36 to flip 90°, adjusts the side panel 48 from the horizontal clamping position to the vertical welding position, and docks and positions it with the bottom frame 46; start the stepper motor 17, the stepper motor 17 drives the drive pulley 16 to rotate, and then drives the U-shaped slide frame 15 to slide horizontally along the sliding limit frame 13, so as to achieve real-time adjustment of the welding position; adjustment of the welding mechanism according to different welding points on the inside and outside: the different welding points on the inside and outside are adjusted by controlling the extension and telescopic cylinder 20 to extend and retract, and the swing drive motor 24 is started to drive the welding swing arm 22 inward by the swing drive motor 24 Or swing outward at a certain angle to adjust the welding angle, and control the telescopic cylinder 12 to drive the sliding limit frame 13 to rise and fall as a whole to adjust the welding height; start the steering drive motor 18, the steering drive motor 18 drives the square steering seat 19 to rotate, and drives the multi-point welding assembly to rotate to the longitudinal welding position as a whole, and use the automatic welding gun 23 to perform multi-point welding and fixing on the inside and outside sides respectively; after welding is completed, each clamping mechanism releases the clamping of the bottom frame 46, the side panel 48 and the wheel guard plate 47, controls the lifting and telescopic cylinder 10 to retract, and the hydraulic telescopic cylinder 4 to extend, and transfers the welded chassis assembly to the conveyor belt 8 again, and carries out unloading, transfer and transportation.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. Welding equipment for the chassis assembly of children's toy cars, characterized by: The invention comprises a supporting platform (1), wherein the supporting platform (1) is a horizontally arranged square platform, a welding workbench (2) is provided on the supporting platform (1) in a lifting manner, the welding workbench (2) is a horizontally arranged square platform, a loading and unloading conveying assembly is provided on the supporting platform (1) in a horizontal direction, and a multi-point welding assembly, a wheel guard plate clamping assembly, a side panel clamping assembly and a frame positioning assembly are provided on the welding workbench (2); A square lifting and lowering communication opening (3) is provided in the middle of the upper surface of the welding workbench (2); four hydraulic telescopic cylinders (4) symmetrical in pairs are fixedly connected to one side of the upper surface of the supporting platform (1); the upper telescopic ends of the hydraulic telescopic cylinders (4) are fixedly connected to the lower surface of the welding workbench (2); The multi-point welding assembly comprises two symmetrically arranged fixed bases (11), the two fixed bases (11) being respectively fixedly connected to the centers of two transverse outer end surfaces of the welding workbench (2), and the upper surface of each fixed base (11) being respectively fixedly connected to a vertical telescopic cylinder (12); The multi-point welding assembly further comprises a sliding limit frame (13), the sliding limit frame (13) being a U-shaped frame with its opening facing downward, and the upper telescopic end of the telescopic cylinder (12) being fixedly connected to the lower end surface of the vertical portion of the sliding limit frame (13); The upper surface of the sliding limit frame (13) is provided with a horizontally extending limit slide groove (14), the sliding limit frame (13) is sleeved with a U-shaped slide frame (15), the upper part of the U-shaped slide frame (15) is rotatably provided with a driving pulley (16), the lower end of the driving pulley (16) abuts against the bottom surface of the limit slide groove (14), a stepping motor (17) is fixedly connected to the longitudinal outer side wall of the U-shaped slide frame (15), and the output shaft end of the stepping motor (17) passes through the U-shaped slide frame (15) and is fixedly connected to the side end surface of the driving pulley (16); A steering drive motor (18) is fixedly connected at the center of the inner bottom surface of the U-shaped sliding frame (15); the output shaft end of the steering drive motor (18) passes downward through the U-shaped sliding frame (15) and is fixedly connected to a square steering seat (19); a horizontal extension and telescopic cylinder (20) is fixedly connected to each lateral outer end surface of the square steering seat (19); the telescopic end of the extension and telescopic cylinder (20) is fixedly connected to a swing limit frame (21); the swing limit frame (21) is a square frame with upper and lower openings; a welding swing arm (22) is respectively provided in each swing limit frame (21); an automatic welding gun (23) is fixedly connected to the lower end of the welding swing arm (22); A swing drive motor (24) is fixedly connected to the longitudinal side end surface of the swing limit frame (21), and the output shaft end of the swing drive motor (24) passes through the swing limit frame (21) and is fixedly connected to the side end surface of the welding swing arm (22).

2. The welding equipment for the chassis assembly of a children's toy car according to claim 1, characterized in that: The loading and unloading conveying assembly comprises two longitudinally extending conveying rollers (5), the two conveying rollers (5) are arranged at the two ends of the supporting platform (1) in the transverse direction, and each of the conveying rollers (5) is provided with a vertical conveying clamping plate (6) on both longitudinal sides, and the conveying roller (5) is rotatably mounted between the two conveying clamping plates (6), and a conveying drive motor (7) is fixedly connected to the outer side wall of the conveying clamping plate (6) near the upper end, and the output shaft end of the conveying drive motor (7) passes through the conveying clamping plate (6) and is fixedly connected to the side end surface of the conveying roller (5); A conveyor belt (8) is sleeved between the two conveyor rollers (5); the conveyor belt (8) is arranged below the welding workbench (2) and directly facing the lifting and lowering connecting port (3).

3. The welding equipment for the chassis assembly of a children's toy car according to claim 2, characterized in that: The loading and unloading conveying assembly also includes two symmetrically arranged horizontal support plates (9), the horizontal support plates (9) are transversely extending strip plates, the two horizontal support plates (9) are lifted and lowered in the lifting connecting port (3), and the two horizontal support plates (9) are arranged on both sides of the longitudinal direction of the conveyor belt (8), and the upper surface of the supporting platform (1) is fixedly connected to two transversely symmetrical lifting and telescopic cylinders (10) corresponding to each of the horizontal support plates (9), and the upper telescopic end of the lifting and telescopic cylinder (10) is fixedly connected to the lower surface of the horizontal support plate (9).

4. The welding equipment for the chassis assembly of a children's toy car according to claim 1, characterized in that: The wheel guard plate clamping assembly comprises four clamping guide frames (25) which are symmetrical in pairs, the clamping guide frames (25) being square frames extending longitudinally and open at the top and bottom, the lower ends of the clamping guide frames (25) being fixedly connected to the upper surface of the welding workbench (2); A rotation drive motor (26) is fixedly connected to the longitudinal outer end surface of each of the clamping guide frames (25), and the output shaft end of the rotation drive motor (26) passes through the clamping guide frame (25) and is fixedly connected to a longitudinally extending drive threaded rod (27); A square slide seat (28) is respectively mounted in each of the clamping guide frames (25), the driving threaded rod (27) passes through and is threadedly connected to the square slide seat (28), and a wheel guard plate clamp seat (29) is respectively fixedly connected to the upper end surface of each of the square slide seats (28).

5. The welding equipment for the chassis assembly of a children's toy car according to claim 1, characterized in that: The upper surface of the welding workbench (2) is provided with four sliding limit grooves (30) which are symmetrical in pairs, and a driving slider (31) is slidably mounted in each of the sliding limit grooves (30). A sliding drive motor (32) is fixedly connected to each of the sliding limit grooves (30) on the transverse outer end surface of the welding workbench (2), and the output shaft end of each of the sliding drive motors (32) extends into the sliding limit groove (30) and is fixedly connected to a transversely extending threaded screw (33), and the threaded screw (33) passes through and is threadedly connected to the corresponding driving slider (31).

6. The welding equipment for the chassis assembly of a children's toy car according to claim 5, characterized in that: The side panel clamping assembly comprises four T-shaped movable seats (34), the four T-shaped movable seats (34) are respectively fixedly connected to the four driving sliders (31), and a flip driving motor (35) is respectively fixedly connected to the lateral outer end surface of each T-shaped movable seat (34), the output shaft end of the flip driving motor (35) passes through the T-shaped movable seat (34) and is fixedly connected to a flip clamping seat (36), a clamping telescopic cylinder (37) is fixedly connected to the longitudinal side end surface of the flip clamping seat (36), and the telescopic end of the clamping telescopic cylinder (37) is fixedly connected to a square transfer seat (38), and the upper surface of the square transfer seat (38) is telescopically provided with a side panel clamping seat (39).

7. The welding equipment for the chassis assembly of a children's toy car according to claim 1, characterized in that: The frame positioning assembly comprises four L-shaped positioning seats (40) which are symmetrical in pairs. The four L-shaped positioning seats (40) are arranged on both longitudinal sides of the sliding limit frame (13). The upper surface of the welding workbench (2) is provided with a connecting groove (41) corresponding to each of the L-shaped positioning seats (40). A vertical telescopic cylinder (42) is fixedly connected in each of the connecting grooves (41). The upper telescopic end of the vertical telescopic cylinder (42) is fixedly connected to the lower surface of the L-shaped positioning seat (40).

8. The welding equipment for the chassis assembly of a children's toy car according to claim 7, characterized in that: A horizontal telescopic cylinder (43) is fixedly connected to each of the L-shaped positioning seats (40), and a telescopic end of the horizontal telescopic cylinder (43) is fixedly connected to a frame clamping seat (44). Two vertically symmetrical positioning clamping plates (45) are telescopically arranged in the frame clamping seat (44).

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