Auxiliary welding device for automobile child seat assembly part

Abstract

The invention relates to the technical field of welding, in particular to an automobile child seat assembly part welding auxiliary device which comprises a welding table and a material preparation table, a welding clamp used for clamping a connecting rod is assembled on the welding table in a sliding mode, a transverse plate area, a vertical plate area and a side beam area are sequentially arranged on the material preparation table, and the welding clamp comprises a U-shaped frame assembled on the welding table in a sliding mode. Rotating pieces are symmetrically arranged on the two sides of the n-shaped frame, a clamping piece is jointly assembled between the two rotating pieces, and a reversing piece is slidably arranged at the bottom of the welding table; through cooperation of the welding table and the material preparation table, accurate positioning welding of a connecting rod in a seat assembly is achieved, the welding clamp enables the connecting rod to rotate around the axis of the connecting rod through the U-shaped frame and the rotating piece, and therefore welding work of a transverse plate, a vertical plate and a side beam is completed one by one, and the whole welding process is controlled through the reversing piece; welding automation of the two ends of the connecting rod is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding auxiliary device for an automobile child seat assembly component. Background Art

[0002] The car child safety seat assembly is specially designed for children. It is a safety seat system installed in the car to ensure the safety of children in the car. The system provides children with full protection that cannot be broken free, completely eliminates any mistakes that may be caused by artificial holding, and effectively prevents improper behavior and accidents that may occur when children ride alone. The car child safety seat assembly usually consists of the seat body, safety belt buckle, head and neck support, suction regulator and installation device.

[0003] During the assembly process, the seat assembly usually uses welding devices to weld the various parts together to form a complete seat assembly. For example, a bracket assembly welding fixture for a car child safety seat, whose publication number is CN210388117U, is easy to operate and has precise positioning, so that the size of the bracket assembly after welding meets the production quality requirements; the front plate fixing seat can hold the front plate upward, and the two positioning shafts can be inserted into the through holes of the front plate, so that the front plate is firmly fixed; the connecting rod of the bracket assembly is placed in the semicircular groove of the connecting rod fixing seat, so that the connecting rod is positioned; when the frame moves downward at the column, the upper plate and the connecting rod can be pressed tightly.

[0004] Although the welding fixtures provided by the above-mentioned prior art perform well in assembling and positioning parts and facilitate welding operations, they still have several shortcomings in actual application: 1. In the aforementioned prior art, the assembly of each component usually needs to be manually placed and fastened one by one to ensure its stability during the assembly process, and then the precise positioning and assembly of multiple components can be carried out; however, this process that relies on manual operation not only significantly reduces production efficiency, but also the stability of welding quality is easily affected due to possible errors made by the operator.

[0005] 2. In the aforementioned prior art, the clamping and welding technology for child seat assemblies has limitations in size applicability. This technology cannot flexibly adapt to the size differences of seat assemblies of various vehicle models, thereby restricting its application scope in different vehicle models.

[0006] Based on this, the above-mentioned prior art still has room for improvement. Therefore, in order to solve these problems in the prior art, an improved automobile child seat assembly welding device is proposed. Summary of the invention

[0007] To solve the above problems, the present invention provides a welding auxiliary device for an automobile child seat assembly component.

[0008] A welding auxiliary device for an automobile child seat assembly component, comprising a welding table and a stock preparation table. A welding fixture for clamping a connecting rod is slidably assembled on the welding table. A transverse plate area, a vertical plate area and a side beam area are successively arranged on the stock preparation table; The welding fixture includes a U-shaped frame slidably assembled on the welding table. Rotating members are symmetrically arranged on both sides of the U-shaped frame. A clamping member is assembled between the two rotating members. A reversing member is slidably arranged at the bottom of the welding table.

[0009] During welding, the connecting rod is clamped on the clamping member. The reversing member drives the U-shaped frame to move forward, so that one end of the connecting rod corresponds to the transverse plate area, the vertical plate area and the side beam area one by one, realizing the welding of one end of the connecting rod; Subsequently, the reversing member drives the U-shaped frame to move backward and reset and rotate 180°. Then the U-shaped frame moves forward again to realize the welding of the other end of the connecting rod.

[0010] Preferably, the rotating member includes a side-standing seat with an arc-shaped sliding groove opened in the middle. The opening end of the arc-shaped sliding groove corresponds to the opening end of the U-shaped frame. An arc-shaped track is slidably arranged in the arc-shaped sliding groove. An arc-shaped gear ring is arranged on the opposite side of the arc-shaped track. A rotating shaft is rotatably penetrated between the two side-standing seats. Gears I meshing with the corresponding arc-shaped gear rings are assembled at both ends of the rotating shaft.

[0011] Preferably, a plurality of synchronous transverse plates are connected between the two arc-shaped tracks.

[0012] Preferably, the clamping member includes an upper frame and a lower frame longitudinally arranged in sequence. The lower frame is installed between the two arc-shaped tracks through a supporting protrusion. Lifting components are arranged between the two ends of the upper frame and the arc-shaped tracks on the corresponding side. Clamping bottom plates are symmetrically arranged in the upper frame and the lower frame. Arc-shaped clamping plates are installed on the opposite sides thereof.

[0013] Preferably, a plurality of sliding rods arranged in an array are arranged on the side of the clamping bottom plate away from the arc-shaped clamping plate. The sliding rods penetrate through the upper frame or the lower frame. At the same time, an adjusting screw rod is rotatably installed on the side of the clamping bottom plate away from the arc-shaped clamping plate. The adjusting screw rod threadedly penetrates through the corresponding upper frame or lower frame.

[0014] Preferably, a positioning rod is installed at the center of the clamping bottom plate of the lower frame. A positioning hole for the positioning rod to penetrate through is opened at the center of the arc-shaped clamping plate located in the lower frame.

[0015] Preferably, the reversing member includes a rotating shaft installed at the center of the bottom of the U-shaped frame. A sliding hole for the rotating shaft to slide is opened on the welding table. A lifting plate is arranged at the lower end of the rotating shaft penetrating to the bottom of the sliding hole. Two side plates are symmetrically and slidably arranged at the bottom of the welding table. The lifting plate is longitudinally slidably arranged between the two side plates.

[0016] Preferably, a third gear is installed below the sliding hole on the rotating shaft, a rack is arranged at the bottom of the welding table along the length direction of the sliding hole, and an electric push rod is installed between the side plate and the lifting plate.

[0017] Preferably, four auxiliary rods are evenly distributed around the rotating shaft at the bottom of the U-shaped frame. Two groups of auxiliary sliding holes are opened along the length direction of the welding table. The two auxiliary rods on the same side of the welding table are slidably arranged in the same group of auxiliary sliding holes, and the height of the lower end of the auxiliary rod is higher than the height of the third gear.

[0018] Preferably, a supporting rod is arranged on the lifting plate corresponding to the auxiliary rod. The total length of the supporting rod and the auxiliary rod is the same as the length of the rotating rod. When the third gear meshes with the rack for transmission, the upper surface of the supporting rod is flush with the upper surface of the welding table.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: First, through the cooperation of the welding table and the stock preparation table, the present invention realizes the precise positioning welding of the connecting rod in the seat assembly. The welding fixture enables the connecting rod to rotate around its axis through the U-shaped frame and the rotating part, so as to complete the welding work of the cross plate, vertical plate and side beam one by one. The entire welding process is controlled by the reversing part, realizing the automation of the welding at both ends of the connecting rod.

[0020] Second, the rotating part of the present invention uses a servo motor to drive the rotating shaft, driving the two arc-shaped gear rings to rotate, so as to realize the rotation of the arc-shaped track in the arc-shaped chute; the clamping part is placed between the two arc-shaped tracks and rotates with the rotation of the arc-shaped track to realize the sequential welding of the cross plate, vertical plate and side beam.

[0021] Third, the design of the clamping part of the present invention is also quite ingenious. Its surface is provided with anti-slip lines to increase the friction with the connecting rod, preventing the connecting rod from loosening or falling off due to vibration or external force during the welding process; at the same time, the clamping part also adopts an adjustable design and can be adjusted according to different specifications of the connecting rod, thus improving the applicability and flexibility of the welding device.

[0022] Fourth, the reversing part at the bottom of the welding table of the present invention is responsible for the forward movement, reverse reset, upward lifting and 180° rotation of the U-shaped frame, realizing the smooth welding of both ends of the connecting rod and ensuring the coherence and high efficiency of the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of some components of the seat assembly.

[0025] Figure 2 It is a structural schematic of the welding fixture of the present invention Figure 1 .

[0026] Figure 3 is the structural schematic diagram of the welding fixture of the present invention Figure 2 .

[0027] Figure 4 is the structural schematic diagram among the C-shaped frame, the rotating part and the clamping part of the present invention

[0028] Figure 5 is the structural schematic diagram between the C-shaped frame and the rotating part of the present invention

[0029] Figure 6 is the structural schematic diagram of the clamping part of the present invention Figure 1 .

[0030] Figure 7 is the structural schematic diagram of the clamping part of the present invention Figure 2 .

[0031] Figure 8 is the present invention Figure 4 partial enlarged view at position A

[0032] Fig. 9 is the structural schematic diagram among the C-shaped frame, the commutation part and the welding table of the present invention

[0033] Fig.10 is the structural schematic diagram between the commutation part and the welding table of the present invention

[0034] Fig.11 is the structural schematic diagram of the commutation part of the present invention

[0035] Fig.12 is the welding process of the connecting rod of the present invention Figure 1 .

[0036] Fig.13 is the welding process of the connecting rod of the present invention Figure 2 .

[0037] Fig.14 is the welding process of the connecting rod of the present invention Figure 3 .

[0038] Fig.15 is the welding process of the connecting rod of the present invention Figure 4 .

[0039] In the figure, 10 is the connecting rod; 100 is the process hole; 101 is the side beam; 102 is the vertical plate; 103 is the horizontal plate; 2 is the welding table; 3 is the stock preparation table; 31 is the horizontal plate area; 32 is the vertical plate area; 33 is the side beam area; 4 is the welding fixture; 41 is the U-shaped frame; 42 is the rotating part; 43 is the clamping part; 44 is the reversing part; 421 is the side standing seat; 422 is the arc track; 423 is the arc gear ring; 424 is the rotating shaft; 425 is the first gear; 426 is the synchronous horizontal plate; 430 is the upper frame; 431 is the lower frame; 432 is the supporting protrusion; 433 is the clamping bottom plate; 434 is the arc-shaped clamping plate; 435 is the sliding rod; 436 is the adjusting screw; 437 is the upper connecting plate; 438 is the lower connecting plate; 439 is the guiding rod; 45 is the lifting assembly; 46 is the positioning rod; 410 is the rectangular hole; 451 is the connecting plate; 452 is the lifting screw rod; 453 is the L-shaped plate; 454 is the second gear; 456 is the sliding protrusion; 457 is the sliding groove; 440 is the rotating shaft; 441 is the lifting plate; 442 is the side plate; 443 is the longitudinal guiding rod; 444 is the third gear; 445 is the rack; 446 is the electric push rod; 447 is the auxiliary rod; 448 is the supporting rod; 21 is the sliding hole; 22 is the auxiliary sliding hole; 50 is the fixed base; 51 is the rotating screw rod; 52 is the driving plate. Detailed implementation mode

[0040] The following combines the attached Figure 1-Figure 15 The embodiments of the present invention will be described in detail.

[0041] Refer to Figure 1 As shown, the seat assembly involved in this application includes a connecting rod 10, two side beams 101, two vertical plates 102 and two horizontal plates 103. The seat assembly is formed by welding the above components. Among them, a process hole 100 is provided in the middle of the connecting rod 10. In the current welding process, the assembly of each component usually needs to be manually placed and fastened one by one to ensure the stability of the assembly process. Subsequently, precise positioning and assembly of multiple components can be carried out. However, since the seat assembly is symmetrically designed, when clamping and fixing the side beam 101, the vertical plate 102 and the horizontal plate 103, the repeatability of the operation steps becomes a bottleneck for improving efficiency.

[0042] Based on this, this application discloses a welding auxiliary device for automotive child seat assembly components. Through the cooperation of the welding table 2 and the stock preparation table 3, precise positioning welding of the connecting rod 10 in the seat assembly is realized. The welding fixture 4 enables the connecting rod 10 to rotate around its axis through the U-shaped frame 41 and the rotating part 42, so as to complete the welding work of the horizontal plate 103, the vertical plate 102 and the side beam 101 one by one. The entire welding process is controlled by the reversing part 44, realizing the automation of the welding process at both ends of the connecting rod 10.

[0043] Embodiment 1: Refer to Figure 2As shown in the figure, a welding auxiliary device for an automotive child seat assembly component includes a welding table 2 and a stock preparation table 3. A welding fixture 4 for clamping a connecting rod 10 is slidably assembled on the welding table 2 to clamp the connecting rod 10, thereby assisting in the positioning welding of the seat assembly. In addition, a horizontal plate area 31, a vertical plate area 32, and a side beam area 33 are sequentially provided on the stock preparation table 3. The welding fixture 4 moves along the length direction of the welding table 2 and sequentially passes through the horizontal plate area 31, the vertical plate area 32, and the side beam area 33 to perform the clamping and welding of the horizontal plate 103, the vertical plate 102, and the side beam 101 one by one.

[0044] Specifically, referring to Figure 3 and Figure 4 As shown in the figure, the welding fixture 4 includes a U-shaped frame 41 slidably assembled on the welding table 2. Rotating members 42 are symmetrically arranged on both sides of the U-shaped frame 41, and a clamping member 43 is jointly assembled between the two rotating members 42. The connecting rod 10 passes through the U-shaped frame 41 and is fixed on the clamping member 43. The two rotating members 42 drive the connecting rod 10 to rotate around its axis to realize the welding of the horizontal plate 103, the vertical plate 102, and the side beam 101 on the stock preparation table 3 to the connecting rod 10 one by one.

[0045] In addition, a reversing member 44 is slidably arranged at the bottom of the welding table 2. When the reversing member 44 slides at the bottom of the welding table 2, it drives the U-shaped frame 41 to move synchronously.

[0046] During welding, the connecting rod 10 is clamped on the clamping member 43. The reversing member 44 drives the U-shaped frame 41 to move forward, so that one end of the connecting rod 10 corresponds to the horizontal plate area 31, the vertical plate area 32, and the side beam area 33 on the stock preparation table 3 one by one, realizing the welding of the horizontal plate 103, the vertical plate 102, and the side beam 101 at one end of the connecting rod 10 one by one; then the reversing member 44 guides the U-shaped frame 41 to move backward to reset, the reversing member 44 drives the U-shaped frame 41 to rise and lift off and rotate 180°; then the reversing member 44 drives the U-shaped frame 41 to move forward again to realize the welding of the horizontal plate 103, the vertical plate 102, and the side beam 101 at the other end of the connecting rod 10 one by one.

[0047] In summary, the welding table 2 of the present invention is used to clamp the connecting rod 10. The stock preparation table 3 is divided into a horizontal plate area 31, a vertical plate area 32, and a side beam area 33 for placing the components to be welded; the welding fixture 4 fixes the connecting rod 10 through the clamping member 43 and uses the rotating member 42 to realize the rotation of the connecting rod 10. The connecting rod 10 passes through the U-shaped frame 41 and is fixed on the clamping member 43 and rotates around the axis driven by the rotating member 42; the welding fixture 4 moves along the welding table 2 and sequentially passes through the horizontal plate area 31, the vertical plate area 32, and the side beam area 33 to realize the clamping and welding of the horizontal plate 103, the vertical plate 102, and the side beam 101 one by one. At the same time, the reversing member 44 at the bottom of the welding table 2 is responsible for the forward movement, reverse reset, rising and lifting off, and 180° rotation actions of the U-shaped frame 41 to realize the smooth welding of both ends of the connecting rod 10.

[0048] Refer to Figure 5 As shown, the rotating member 42 includes a side seat 421 with an arc-shaped sliding groove formed in the middle. The open end of the arc-shaped sliding groove corresponds to the open end of the U-shaped frame 41, and an arc-shaped track 422 is slidably provided in the arc-shaped sliding groove. An arc-shaped gear ring 423 is provided on the opposite side of the arc-shaped track 422. A rotating shaft 424 is rotatably passed through between the two side seats 421. Two gears 425 meshing with the corresponding arc-shaped gear rings 423 are assembled at both ends of the rotating shaft 424. The clamping member 43 is arranged between the two arc-shaped tracks 422.

[0049] One end of the rotating shaft 424 is connected to a servo motor (not shown in the figure). The servo motor drives the rotating shaft 424 to rotate, and then drives the arc-shaped gear ring 423 to rotate through the gear 425, so as to drive the arc-shaped track 422 to rotate in the arc-shaped sliding groove. In this process, the two arc-shaped gear rings 423 drive the clamping member 43 to rotate around its axis, so as to realize the sequential welding of the horizontal plate 103, the vertical plate 102 and the side beam 101.

[0050] Wherein, the two arc-shaped tracks 422 are connected by a plurality of synchronous horizontal plates 426 to ensure the synchronism and stability of the two arc-shaped tracks 422 during rotation. In addition, the synchronous horizontal plates 426 strengthen the overall structural strength, making the welding fixture 4 more stable and durable as a whole.

[0051] Refer to Figures 5 to 7 As shown, the clamping member 43 includes an upper frame 430 and a lower frame 431 arranged longitudinally in sequence. The lower frame 431 is installed between the two arc-shaped tracks 422 through a support protrusion 432. A lifting assembly 45 is arranged between the two ends of the upper frame 430 and the arc-shaped track 422 on the corresponding side. The longitudinal movement of the upper frame 430 is controlled by the lifting assembly 45 for placing or removing the connecting rod 10.

[0052] Specifically, clamping bottom plates 433 are symmetrically arranged in the upper frame 430 and the lower frame 431. Arc-shaped clamping plates 434 are installed on the opposite sides of the two clamping bottom plates 433 in a detachable manner. The connecting rod 10 is placed between the two arc-shaped clamping plates 434. By controlling the movement of the upper frame 430 through the lifting assembly 45, the upper arc-shaped clamping plate 434 is driven to move, so as to realize the clamping of the connecting rod 10 by the two arc-shaped clamping plates 434.

[0053] A plurality of sliding rods 435 arranged in an array are provided on the side of the clamping bottom plate 433 facing away from the arc-shaped clamping plate 434, and the corresponding upper frame 430 or lower frame 431 is slidably penetrated. At the same time, an adjusting screw 436 is rotatably installed on the side of the clamping bottom plate 433 facing away from the arc-shaped clamping plate 434, and the adjusting screw 436 is threadedly penetrated through the corresponding upper frame 430 or lower frame 431.

[0054] Therefore, the adjusting screw rod 436 can be turned to change the position of the clamping base plate 433, that is, to adjust the distance between the two arc-shaped clamping plates 434, which can be adjusted according to different specifications of the connecting rod 10, thereby improving the applicability and flexibility of the welding device.

[0055] In addition, upper connecting plates 437 are provided on both sides of the upper frame 430, and lower connecting plates 438 are provided on both sides of the lower frame 431. The lower connecting plate 438 is provided on the upper side of the lower frame 431. A plurality of guide rods 439 are threadedly installed on the upper connecting plate 437, and through holes for the lower ends of the guide rods 439 to pass through are formed on the lower connecting plate 438, which can ensure the consistency of the longitudinal movement of the upper frame 430 and ensure the synchronism of the rotation of the upper frame 430 and the lower frame 431 when they are butted.

[0056] It should be noted that anti-slip lines are provided on the concave surface of the arc-shaped clamping plate 434 to increase the friction force with the connecting rod 10 and prevent the connecting rod 10 from loosening or falling off due to vibration or external force during the welding process.

[0057] In addition, the guide rod 439 facing the vertical side of the C-shaped frame 41 has sufficient length. When the upper frame 430 rises to the limit position, the lower end of the guide rod 439 remains in the through hole; correspondingly, the other side of the guide rod 439 is accurately inserted into the through hole only when the upper frame 430 and the lower frame 431 are butted to ensure synchronism. When the upper frame 430 moves upward to脱离 contact with the lower frame 431, the lower end of the guide rod 439脱离 the through hole, which is convenient for the subsequent placement and removal of the connecting rod 10.

[0058] Furthermore, in order to ensure the symmetry of the welding at both ends of the connecting rod 10, it is necessary to ensure its central position when clamping the connecting rod 10. Therefore, a positioning rod 46 is detachably installed at the center of the clamping base plate 433 of the lower frame 431, and a positioning hole for the positioning rod 46 to pass through is formed at the center of the arc-shaped clamping plate 434 located inside the lower frame 431. The positioning rod 46 corresponds to the process hole 100 of the connecting rod 10 skillfully, which is convenient for quickly finding the center of the connecting rod 10 and performing axis limit on it, with extremely high positioning accuracy, ensuring the stability and symmetry of the connecting rod 10 during the welding process and further improving the welding quality.

[0059] Furthermore, referring to Figure 4 and Figure 5 As shown, a rectangular hole 410 for the upper frame 430 to pass through is formed at the upper end of the C-shaped frame 41, so that the upper frame 430 can smoothly pass through the rectangular hole 410 when moving upward, avoiding the problem of collision between the upper frame 430 and the upper end of the C-shaped frame 41.

[0060] Referring to Figure 4 、 Figure 6 and Figure 8As shown in the figure, the lifting component 45 includes a connecting plate 451. The connecting plate 451 is arranged on the side wall of the upper frame 430. A lifting screw rod 452 is installed on the connecting plate 451. An L-shaped plate 453 is arranged corresponding to the lifting screw rod 452 on the arc-shaped track 422. The upper end of the lifting screw rod 452 slidably penetrates through the horizontal section of the L-shaped plate 453. A second gear 454 is rotatably installed at the bottom of the horizontal section of the L-shaped plate 453, and the second gear 454 is threadedly connected to the lifting screw rod 452.

[0061] When the second gear 454 is driven to start, its threaded engagement with the lifting screw rod 452 will guide the lifting screw rod 452 to translate longitudinally, thereby driving the upper frame 430 to move synchronously, realizing the opening and closing actions of the upper frame 430 and the lower frame 431, so as to facilitate the placement and removal of the connecting rod 10.

[0062] Since the upper frame 430 is connected to the arc-shaped track 422 through the lifting screw rod 452 and the L-shaped plate 453, when the arc-shaped track 422 rotates, the rotation of the upper frame 430 depends on the combined action of the L-shaped plate 453 and the lifting screw rod 452, which may increase the rotational pressure between the two; therefore, in the present invention, a sliding protrusion 456 is provided on the horizontal section of the L-shaped plate 453, and a sliding groove 457 is opened on the side wall of the upper frame 430 for the longitudinal sliding of the sliding protrusion 456. Such a design enables the L-shaped plate 453 to directly drive the rotation of the upper frame 430 not only through the lifting screw rod 452 but also through the cooperation of the sliding protrusion 456 and the sliding groove 457, thereby reducing the load on the lifting screw rod 452.

[0063] In addition, the precise cooperation of the upper connecting plate 437, the lower connecting plate 438 and the guide rod 439 ensures that the upper frame 430 and the lower frame 431 rotate precisely synchronously in this way.

[0064] Embodiment 2: Refer to Figures 9 to 11 As shown in the figure, on the basis of Embodiment 1, this embodiment discloses a reversing member 44 to realize the movement and 180° rotation of the C-shaped frame 41.

[0065] Specifically, the reversing member 44 includes a rotating shaft 440 installed at the center of the bottom of the C-shaped frame 41. A sliding hole 21 for the sliding of the rotating shaft 440 is opened on the welding table 2, and a lifting plate 441 is provided at the bottom of the rotating shaft 440 passing through to the bottom of the sliding hole 21. Two side plates 442 are symmetrically and slidably arranged at the bottom of the welding table 2. The lifting plate 441 is longitudinally slidably arranged between the two side plates 442. By moving the two side plates 442, the lifting plate 441 is adjusted synchronously, so as to synchronously move the C-shaped frame 41 through the rotating shaft 440, that is, to realize the position transformation of the connecting rod 10 between the horizontal plate area 31, the vertical plate area 32 and the side beam area 33 during welding.

[0066] A longitudinal guide rod 443 is provided on the side plate 442, and the lifting plate 441 slides longitudinally on the longitudinal guide rod 443 to ensure that the lifting plate 441 can be driven to move synchronously when the side plate 442 moves, so as to realize the coordinated movement of the C-shaped plate on the welding table 2.

[0067] After one side of the welding is completed, the C-shaped plate needs to be rotated 180° to adjust the positions of both ends of the connecting rod 10 for the welding of the other side.

[0068] Specifically, a third gear 444 is installed below the sliding hole 21 on the rotating shaft 440. A rack 445 is provided at the bottom of the welding table 2 along the length direction of the sliding hole 21. An electric push rod 446 is installed between the side plate 442 and the lifting plate 441. The lifting plate 441 is driven by the electric push rod 446 to move upward, so that the third gear 444 moves upward to engage with the rack 445. At this time, the whole C-shaped plate rises and is lifted off the ground. Then when the C-shaped plate moves, the third gear 444 will engage with the rack 445, driving the third gear 444 to rotate, and further driving the rotating shaft 440 to rotate, realizing the 180° rotation of the C-shaped plate, ensuring that the positions of both ends of the connecting rod 10 are interchanged, and facilitating the welding operation of the other side.

[0069] To ensure the stability of the C-shaped frame 41 when sliding on the welding table 2, four auxiliary rods 447 are evenly distributed at equal intervals around the rotating shaft 440 at the bottom of the C-shaped frame 41. Two groups of auxiliary sliding holes 22 are opened along the length direction of the welding table 2. The two auxiliary rods 447 on the same side of the welding table 2 slide in the same group of auxiliary sliding holes 22, and the height of the lower end of the auxiliary rod 447 is higher than the height of the third gear 444, ensuring that when the lifting plate 441 rises instantaneously and the third gear 444 is at the same height as the rack 445, the lower end of the auxiliary rod 447 can freely disengage from the auxiliary sliding hole 22, preventing the lower end of the auxiliary rod 447 from still being in the auxiliary sliding hole 22 and affecting the rotation of the rotating shaft 440 driving the C-shaped frame 41.

[0070] It should be noted that the design of limiting the two auxiliary rods 447 on the same side of the welding table 2 to slide in the same group of auxiliary sliding holes 22 effectively avoids the rotation jamming caused by the misalignment of the auxiliary rods 447 after rotation, ensuring the smoothness and accuracy of the rotation process. In addition, through the equal-spacing layout of the auxiliary rods 447, the stability of the C-shaped frame 41 when sliding is improved, and the overall welding efficiency and quality are improved.

[0071] In addition, a supporting rod 448 is provided on the lifting plate 441 corresponding to the auxiliary rod 447. The upper end of the supporting rod 448 is in contact with the lower end of the auxiliary rod 447 to ensure the stable support of the C-shaped frame 41 during the movement and rotation. It should be noted that the total length of the supporting rod 448 and the auxiliary rod 447 is the same as the length of the rotating rod.

[0072] Therefore, when the U-shaped frame 41 is rotated by 180°, the lifting plate 441 drives the supporting rod 448 and the auxiliary rod 447 to rise synchronously. When the third gear 444 meshes with the rack 445 for transmission, the upper surface of the supporting rod 448 is flush with the upper surface of the welding table 2, ensuring that when the U-shaped frame 41 rotates, the lower end of the auxiliary rod 447 can smoothly transition between the upper surface of the supporting rod 448 and the upper surface of the welding table 2, avoiding jamming and ensuring smooth rotation.

[0073] Furthermore, two fixed bases 50 are provided at the bottom of the welding table 2. A rotating lead screw 51 is rotatably installed on the brackets of the two fixed bases 50. A driving plate 52 threadedly connected to the rotating lead screw 51 is installed on the side plate 442. The rotation of the rotating lead screw 51 will drive the driving plate 52 to smoothly move along its axis, thereby driving the movement of the side plate 442, so as to realize the synchronous movement of the U-shaped frame 41 and ensure the precise alignment of each component during the welding process.

[0074] At the same time, the moving speed of the driving plate 52 can be precisely controlled by adjusting the rotation speed of the rotating lead screw 51 to ensure the stability and efficiency of the welding operation. In addition, sensors (not shown in the figure) are provided on both sides of the welding table 2 of the present invention to monitor the position and rotation angle of the U-shaped frame 41 in real time, ensuring that each operation is accurate and error-free.

[0075] The working principle of the present invention includes the following steps: Step 1: Clamp the connecting rod 10 on the clamping member 43 and adjust the position of the clamping member 43 to ensure that the connecting rod 10 remains horizontal for subsequent welding operations.

[0076] Step 2: Drive the side plate 442 to move, so that the U-shaped frame 41 is accurately positioned at the initial welding position, that is, one end of the connecting rod 10 corresponds to the cross plate area 31, which is helpful for the precise welding of the cross plate 103 in the cross plate area 31 and the side wall of the connecting rod 10, as Fig.12 shown in the state.

[0077] Step 3: Operate the rotating member 42 to make the clamping member 43 guide the connecting rod 10 to rotate 90°, and drive the U-shaped frame 41 to continue to move to the vertical plate area 32 for the welding of the vertical plate 102 in the vertical plate area 32 and the side wall of the connecting rod 10, as Fig.12 shown by the arrow direction in the figure, representing the rotation direction of the connecting rod 10 and the moving path of the U-shaped frame 41.

[0078] Step 4: Continue to start the rotating member 42 to make the clamping member 43 drive the connecting rod 10 to rotate 90° along its axis again, and drive the U-shaped frame 41 to continue to move to the side beam area 33 for the welding of the side beam 101 in the side beam area 33 and the side wall of the connecting rod 10, as Fig.13 shown in the state, and at this time, the welding operation of one end of the connecting rod 10 is completed.

[0079] Step 5: The mold frame 41 moves in the reverse direction. Fig.13 When moving in the direction of the arrow shown in FIG. 1 , the reversing member 44 drives the shaped frame 41 to rotate 180° around the rotating shaft 440, so as to realize the exchange of the positions of the two ends of the connecting rod 10. Fig.14 As shown, the two ends of the connecting rod 10 are moved to the initial welding position after being swapped, that is, the unwelded end of the connecting rod 10 after being swapped corresponds to the horizontal plate area 31, so that the horizontal plate 103 of the horizontal plate area 31 is accurately welded to the side wall of the connecting rod 10, as shown in FIG. Fig.14 Status shown.

[0080] Step 6: Repeat steps 3 and 4, and connect rod 10 according to Fig.14 The connecting rod 10 is rotated in the direction of the rotating arrow shown in the figure to complete the welding of the vertical plate 102 at the other end of the connecting rod 10 and the side beam 101, ensuring that the structures at both ends are symmetrical and stable. Fig.15 Status shown.

[0081] Step 7: Finally, when the mold frame 41 is Fig.15 When the arrow indicates reverse movement, the direction-changing member 44 guides the direction-changing member 44 to perform a 180° reversal with the rotation axis 440 as the center and return to the initial position. Fig.12 As shown, the welded connecting rod 10 can be safely removed at this time, and the clamping and welding of the next connecting rod 10 is convenient, ensuring that the process is seamlessly connected and accurately repeated, so as to improve the overall welding quality and efficiency.

[0082] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0083] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A welding auxiliary device for an automobile child seat assembly component, comprising a welding table (2) and a material preparation table (3), characterized in that: A welding fixture (4) is slidably mounted on the welding table (2), and a horizontal plate area (31), a vertical plate area (32) and a side beam area (33) are sequentially arranged on the material preparation table (3); The welding fixture (4) comprises a shaped frame (41) slidably mounted on the welding table (2), rotating parts (42) are symmetrically arranged on both sides of the shaped frame (41), a clamping part (43) is commonly mounted between the two rotating parts (42), and a reversing part (44) is slidably arranged at the bottom of the welding table (2); During welding, the connecting rod (10) is clamped on the clamping member (43), and the reversing member (44) drives the shaped frame (41) to move in the positive direction, so that one end of the connecting rod (10) corresponds to the horizontal plate area (31), the vertical plate area (32) and the side beam area (33) one by one, thereby realizing the welding of one end of the connecting rod (10); Subsequently, the reversing member (44) drives the shaped frame (41) to move in the reverse direction to reset and to rise and rotate 180°, after which the shaped frame (41) moves forward again to achieve welding of the other end of the connecting rod (10).

2. A welding auxiliary device for a child seat assembly component of a vehicle according to claim 1, characterized in that: The rotating member (42) includes a side stand (421) with an arc-shaped slide groove in the middle, the open end of the arc-shaped slide groove corresponds to the open end of the shaped frame (41), and an arc track (422) is slidably provided in the arc-shaped slide groove, and an arc-shaped gear ring (423) is provided on the opposite side of the arc track (422). A rotating shaft (424) is rotatably passed through the two side stands (421), and both ends of the rotating shaft (424) are equipped with a gear (425) that meshes with the corresponding arc-shaped gear ring (423).

3. A welding auxiliary device for a child seat assembly of a vehicle according to claim 2, characterized in that: The two arc-shaped tracks (422) are connected via a plurality of synchronous transverse plates (426).

4. A welding auxiliary device for a child seat assembly of a vehicle according to claim 2, characterized in that: The clamping member (43) comprises an upper frame (430) and a lower frame (431) which are longitudinally arranged in sequence. The lower frame (431) is installed between two arc-shaped rails (422) via a supporting protrusion (432). A lifting assembly (45) is arranged between the two ends of the upper frame (430) and the arc-shaped rails (422) on the corresponding side. Clamping base plates (433) are symmetrically arranged in the upper frame (430) and the lower frame (431), and arc-shaped clamping plates (434) are installed on opposite sides thereof.

5. A welding auxiliary device for a child seat assembly component of a vehicle according to claim 4, characterized in that: A plurality of sliding rods (435) arranged in an array are provided on one side of the clamping base plate (433) away from the arc-shaped clamping plate (434), and the sliding rods (435) pass through the upper frame (430) or the lower frame (431). At the same time, an adjusting screw (436) is rotatably installed on the side of the clamping base plate (433) away from the arc-shaped clamping plate (434), and the adjusting screw (436) is threadedly passed through the corresponding upper frame (430) or the lower frame (431).

6. A welding auxiliary device for a child seat assembly of a vehicle according to claim 4, characterized in that: A positioning rod (46) is installed at the center of the clamping bottom plate (433) of the lower frame (431), and a positioning hole for the positioning rod (46) to pass through is opened at the center of the arc-shaped clamping plate (434) located in the lower frame (431).

7. A welding auxiliary device for a child seat assembly of a vehicle according to claim 1, characterized in that: The reversing member (44) includes a rotating shaft (440) installed at the center of the bottom of the C-shaped frame (41). A sliding hole (21) for the sliding of the rotating shaft (440) is provided on the welding table (2). A lifting plate (441) is provided at the lower end of the rotating shaft (440) passing through to the bottom of the sliding hole (21). Two side plates (442) are symmetrically and slidably arranged at the bottom of the welding table (2), and the lifting plate (441) is longitudinally slidably arranged between the two side plates (442).

8. A welding auxiliary device for a child seat assembly component of a vehicle according to claim 7, characterized in that: A third gear (444) is installed below the rotating shaft (440) in the sliding hole (21). A rack (445) is provided at the bottom of the welding table (2) along the length direction of the sliding hole (21), and an electric push rod (446) is installed between the side plate (442) and the lifting plate (441).

9. A welding auxiliary device for a child seat assembly component of a vehicle according to claim 8, characterized in that: Four auxiliary rods (447) are evenly distributed around the rotating shaft (440) at the bottom of the C-shaped frame (41). Two groups of auxiliary sliding holes (22) are provided on the welding table (2) along its length direction. The two auxiliary rods (447) on the same side of the welding table (2) are slidably arranged in the same group of auxiliary sliding holes (22), and the height of the lower end of the auxiliary rod (447) is higher than the height of the third gear (444).

10. A welding auxiliary device for a child seat assembly component of a vehicle according to claim 8, characterized in that: A supporting rod (448) is provided on the lifting plate (441) corresponding to the auxiliary rod (447). The total length of the supporting rod (448) and the auxiliary rod (447) is the same as the length of the rotating rod. When the third gear (444) meshes with the rack (445) for transmission, the upper surface of the supporting rod (448) is flush with the upper surface of the welding table (2).

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