Automobile grille machining equipment

Abstract

Automobile grille machining equipment comprises a square supporting table, a to-be-welded automobile grille and a plasma welding head, a grille fixing mechanism is arranged in the square supporting table, the to-be-welded automobile grille is placed on the upper portion of the grille fixing mechanism, and the grille fixing mechanism supports and fixes the to-be-welded automobile grille; a grid positioning mechanism is arranged on the side face of the square supporting table and comprises a grid auxiliary positioning device and a positioning device driving mechanism, and the grid auxiliary positioning device is located on the side face of the square supporting table and positions a to-be-welded automobile grid to the center position, so that follow-up welding operation is facilitated; the positioning device driving mechanism is located on the lower portion of the grid auxiliary positioning device, the positioning device driving mechanism provides power for movement of the grid auxiliary positioning device, and a welding mechanism is arranged on the top of the square supporting table. The welding mechanism carries out welding operation on all positions of the automobile grille to be welded through a plasma welding head.

Description

Technical Field

[0001] The present invention relates to the field of intelligent welding equipment, and particularly to a processing device for automobile grilles. Background Art

[0002] When processing an automobile grille, welding of the automobile grille is required. The existing patent (Publication No.: CN210060217U) proposes a processing device for an automobile grille, including a workbench and a fixing frame movable on the workbench; the fixing frame includes a fixed bottom plate, a plurality of first fixing seats arranged on the fixed bottom plate, and at least two pressing mechanisms arranged outside the first fixing seats for pressing the front grille of the automobile against the first fixing seats. The first fixing seats form an annular structure adapted to the contour of the front grille. However, in the grille welding process, the fixing groove on the first fixing seat always contacts the side surface of the grille, which may block the welding path of the welding head, and secondary welding is required for the side surface of the grille, affecting the welding efficiency. Summary of the Invention

[0003] In view of the above deficiencies in the prior art, the present invention provides a processing device for an automobile grille, in which multi-type positioning claws do not block the welding path of the welding head, ensuring that the top and side surfaces of the automobile grille to be welded are welded at one time. When the plasma welding head performs welding operations, multi-point synchronous welding is performed on the multi-seam automobile grille to be welded and the decorative plate to be welded, increasing the welding efficiency of the plasma welding head.

[0004] The object of the present invention is achieved through the following technical solutions: A processing device for an automobile grille includes a square support table, an automobile grille to be welded, a plasma welding head, and a decorative plate to be welded. A grille fixing mechanism is arranged inside the square support table. The automobile grille to be welded is placed on the upper part of the grille fixing mechanism, and the decorative plate to be welded is placed on the upper part of the welded automobile grille. The grille fixing mechanism provides support and fixation for the automobile grille to be welded and the decorative plate to be welded. A grille positioning mechanism is arranged on the side of the square support table. The grille positioning mechanism includes a grille auxiliary positioning device and a positioning device driving mechanism. The grille auxiliary positioning device is located on the side of the square support table, and the grille auxiliary positioning device positions the automobile grille to be welded and the decorative plate to be welded to the center position, facilitating subsequent welding operations. The positioning device driving mechanism is located below the grille auxiliary positioning device, and the positioning device driving mechanism provides power for the movement of the grille auxiliary positioning device. A welding mechanism is arranged on the top of the square support table, and the welding mechanism performs welding operations on various positions of the automobile grille to be welded through the plasma welding head.

[0005] The grille fixing mechanism includes a lifting drive platform, a main exhaust pipe, support block fastening screws, grille support blocks, and sealing gaskets. The top of the square support platform has support block mounting grooves, and multiple groups of support block mounting grooves are evenly arranged on the top of the square support platform. The grille support blocks are adapted to the support block mounting grooves, and the grille support blocks are connected to the support block mounting grooves and slide inside the support block mounting grooves. The side of the support block mounting groove has support block fastening screw grooves, and the support block fastening screws are threadedly connected to the support block fastening screw grooves. The support block fastening screws press against the side of the grille support blocks. The grille support blocks have upper negative pressure chambers inside, the bottom of the support block mounting grooves has lower negative pressure chambers, and the bottom of the lower negative pressure chambers has exhaust pipe mounting grooves. The lifting drive platform is arranged at the bottom of the square support platform. The bottom of the square support platform has a lifting platform positioning groove, and the lifting platform positioning groove is located at the interval between two adjacent support block mounting grooves. The bottom of the square support platform has bottom support columns, and the bottom support columns are located on the side of the square support platform. The bottom of the bottom support columns has bottom support seats. The top of the lifting drive platform has a lifting platform positioning post, and the lifting platform positioning post corresponds to the position of the lifting platform positioning groove and is adapted to the lifting platform positioning groove. The lifting platform positioning post is connected to the lifting platform positioning groove and slides inside the lifting platform positioning groove. The top of the lifting drive platform has an exhaust pipe, and the exhaust pipe corresponds to the position of the lower negative pressure chamber. The exhaust pipe mounting groove is adapted to the exhaust pipe, and the exhaust pipe mounting groove is connected to the exhaust pipe. The exhaust pipe slides inside the exhaust pipe mounting groove. The top of the exhaust pipe is fixedly connected to a sealing gasket, and the sealing gasket presses against the lower part of the lower negative pressure chamber. The bottom of the lifting drive platform has a main exhaust chamber. The bottom of the main exhaust chamber has a bottom hydraulic cylinder mounting platform and an exhaust pipe mounting platform. The bottom hydraulic cylinder mounting platform is in the middle position, and the exhaust pipe mounting platforms are distributed on both sides of the bottom hydraulic cylinder mounting platform. The bottom of the exhaust pipe mounting platform is connected to the main exhaust pipe, and the end of the main exhaust pipe is connected to an exhaust device. The internal spaces of the main exhaust pipe, the main exhaust chamber, the exhaust pipe, the sealing gasket, the lower negative pressure chamber, the support block mounting groove, and the upper negative pressure chamber are connected. The bottom hydraulic cylinder mounting platform has a bottom hydraulic cylinder mounting groove inside, and the bottom support hydraulic cylinder is inserted into the bottom hydraulic cylinder mounting groove and fixed. The end of the hydraulic rod of the bottom support hydraulic cylinder is fixedly connected to the bottom support seat.

[0006] The grille auxiliary positioning device includes a bottom jaw seat, multi-type positioning jaws, jaw fastening screws, a driven worm gear, and a driving worm. Each of the four side surfaces of the square support platform has a driving cylinder connection groove, and multiple driving cylinder connection grooves are evenly arranged on the side surface of the square support platform. Each of the four sides of the square support platform has a jaw seat mounting platform, which is located outside the driving cylinder connection groove. The top of the driving cylinder connection groove has a worm mounting platform, and the worm mounting platform is rotatably connected to the driving worm. The middle of the jaw seat mounting platform is provided with a bottom jaw seat. One side of the bottom jaw seat facing the square support platform has a jaw seat mounting block, and the jaw seat mounting block is rotatably connected to the jaw seat mounting platform. The middle of the jaw seat mounting block is fixedly connected to the driven worm gear, and the driven worm gear meshes with the driving worm. The top of the bottom jaw seat has a jaw mounting slideway, and multi-type positioning jaws are arranged on the top of the bottom jaw seat. The bottom of the multi-type positioning jaws has a jaw mounting slider, and the jaw mounting slider is adapted to the jaw mounting slideway. The jaw mounting slider is connected to the jaw mounting slideway and slides outside the jaw mounting slideway. The side of the jaw mounting slider has a jaw screw mounting platform, and the jaw fastening screw is threadedly connected to the jaw screw mounting platform, and the jaw fastening screw presses against the side of the jaw mounting slideway.

[0007] Beneficial effects: 1. In the present invention, the grille support block and the square support platform are designed in a split manner, and the multi-type positioning jaws and the bottom jaw seat are designed in a split manner. When this device faces automobile grilles to be welded of different models, the relative positions of the grille support block and the square support platform, and the multi-type positioning jaws and the bottom jaw seat can be freely changed according to the radian, length and width of the automobile grilles to be welded of different models, so as to adapt to the welding operations of automobile grilles to be welded and decorative plates to be welded of various models, thereby enabling this device to have a good positioning effect on automobile grilles to be welded and decorative plates to be welded of various models.

[0008] 2. During the process of the lifting drive platform being lifted, when the multi-type positioning jaws approach the automobile grille to be welded and the decorative plate to be welded until the positioning of the automobile grille to be welded and the decorative plate to be welded is completed, the multi-type positioning jaws will disconnect from the automobile grille to be welded and the decorative plate to be welded until the automobile grille to be welded is pressed on the upper part of the grille support block, so that the multi-type positioning jaws will not block the welding path of the welding head, ensuring that the top and side of the automobile grille to be welded are welded at one time and increasing the welding efficiency.

[0009] 3. The interior of the bottom jaw seat in the present invention is hollowed out, enabling the bottom jaw seat to tilt within a larger range without colliding with the bottom support hydraulic cylinder driving worm, so that the distance between the multi-type positioning jaws and the automobile grille to be welded is greater when the multi-type positioning jaws run to the extreme position far from the automobile grille to be welded, thereby making it more difficult for the multi-type positioning jaws to be affected by the fumes generated during the subsequent welding process, and thus avoiding excessive accumulation of vaporized metal on the multi-type positioning jaws and affecting the subsequent positioning accuracy of the multi-type positioning jaws.

[0010] 4. The smooth transition groove of the present invention is smoothly tangent to the forward drive thread groove and the reverse drive thread groove, enabling the drive ball to smoothly transition between the forward drive thread groove and the reverse drive thread groove. The vibration during the transition process is small, reducing the wear and tear on the drive ball, and thus reducing the probability of the drive ball malfunctioning.

[0011] 5. When the plasma welding head of the present invention performs welding operations, it synchronously welds multiple joints of the automotive grille to be welded and the decorative panel to be welded at multiple points, increasing the welding efficiency of the plasma welding head. At the same time, each plasma welding head can swing left and right and adjust its own pitch angle, enabling this device to effectively weld various models of automotive grilles to be welded and decorative panels to be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of an automotive grille processing device according to the present invention.

[0013] Figure 2 It is a side view of an automotive grille processing device according to the present invention.

[0014] Figure 3 It is a partial side view cross-sectional view of an automotive grille processing device according to the present invention.

[0015] Figure 4 It is a front view of an automotive grille processing device according to the present invention.

[0016] Figure 5 It is a partial front view cross-sectional view of an automotive grille processing device according to the present invention.

[0017] Figure 6 It is a positioning and clamping state diagram of the automotive grille to be welded according to the present invention.

[0018] Figure 7 It is an installation state diagram of the bottom jaw seat according to the present invention.

[0019] Figure 8 It is an installation state diagram of the driving worm according to the present invention.

[0020] Figure 9 It is an installation state diagram of the position adjustment link according to the present invention.

[0021] Figure 10 It is a schematic structural diagram of the square support platform according to the present invention.

[0022] Figure 11 It is a schematic diagram of the structure of the lifting drive platform according to the present invention Figure 1 .

[0023] Figure 12Schematic diagram of the lifting drive platform structure according to the present invention Figure 2 。

[0024] Figure 13 Schematic diagram of the bottom claw seat structure according to the present invention.

[0025] Figure 14 Connection state diagram of the active worm and the driven rod according to the present invention

[0026] In the figure: square support platform 1; lifting drive platform 2; automobile grille to be welded 3; grille positioning mechanism 4; welding mechanism 5; grille fixing mechanism 6; decorative plate to be welded 9; bottom support seat 11; bottom hydraulic cylinder mounting platform 12; bottom hydraulic cylinder mounting groove 13; bottom support hydraulic cylinder 14; air extraction pipe mounting platform 15; main air extraction pipe 16; driven rod sleeve 17; driven rod 18; bottom claw seat 19; claw mounting slideway 20; multi-type positioning claw 21; claw mounting slider 22; claw fastening screw 23; position adjustment hydraulic cylinder mounting platform 24; position adjustment hydraulic cylinder 25; bottom position adjustment rod mounting platform 26; position adjustment connecting rod 27; top position adjustment rod mounting platform 28; welding pipe bearing platform 29; electric telescopic rod 30; claw seat mounting platform 31; driven worm gear 32; claw seat mounting block 33; support block fastening screw 34; support block fastening screw groove 35; grille support block 36; upper negative pressure chamber 37; support block mounting groove 38; lower negative pressure chamber 39; sealing gasket 40; air extraction pipe 41; main air extraction chamber 42; lifting platform positioning groove 43; lifting platform positioning column 44; worm mounting platform 45; active worm 46; drive cylinder connection groove 47; drive spiral groove 48; drive ball mounting groove 49; drive ball 50; deflection motor 51; deflection motor groove 52; air extraction pipe mounting groove 53; bottom support column 54; welding mechanism support column 55; claw screw mounting platform 56; welding nozzle positioning column 57; welding head bearing platform 58; welding head connecting block 60; angle adjustment motor 61; grille auxiliary positioning device 401; positioning device drive mechanism 402; forward drive thread groove 481; reverse drive thread groove 482; smooth transition groove 483. Specific embodiments

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Embodiment 1: An automobile grille processing device includes a square support platform 1, an automobile grille 3 to be welded, a plasma welding head 59, and a decorative plate 9 to be welded. A grille fixing mechanism 6 is arranged inside the square support platform 1. The automobile grille 3 to be welded is placed on the upper part of the grille fixing mechanism 6, and the decorative plate 9 to be welded is placed on the upper part of the welded automobile grille 3. The grille fixing mechanism 6 provides support and fixation for the automobile grille 3 to be welded and the decorative plate 9 to be welded. A grille positioning mechanism 4 is arranged on the side of the square support platform 1. The grille positioning mechanism 4 includes a grille auxiliary positioning device 401 and a positioning device driving mechanism 402. The grille auxiliary positioning device 401 is located on the side of the square support platform 1. The grille auxiliary positioning device 401 positions the automobile grille 3 to be welded and the decorative plate 9 to be welded to the centered position, facilitating subsequent welding operations. The positioning device driving mechanism 402 is located below the grille auxiliary positioning device 401. The positioning device driving mechanism 402 provides power for the movement of the grille auxiliary positioning device 401. A welding mechanism 5 is arranged on the top of the square support platform 1. The welding mechanism 5 performs welding operations on various positions of the automobile grille 3 to be welded through the plasma welding head 59.

[0028] Embodiment 2: The grille fixing mechanism 6 of the present invention includes a lifting drive platform 2, a main air extraction pipe 16, a support block fastening screw 34, a grille support block 36, and a sealing gasket 40. The top of the square support platform 1 has a support block installation groove 38. Multiple groups of support block installation grooves 38 are evenly arranged on the top of the square support platform 1. The grille support block 36 is adapted to the support block installation groove 38. The grille support block 36 is connected to the support block installation groove 38 and slides inside the support block installation groove 38. The side of the support block installation groove 38 has a support block fastening screw groove 35. The support block fastening screw 34 is threadedly connected to the support block fastening screw groove 35, and the support block fastening screw 34 presses against the side of the grille support block 36. The grille support block 36 has an upper negative pressure chamber 37 inside. The bottom of the support block installation groove 38 has a lower negative pressure chamber 39. The bottom of the lower negative pressure chamber 39 has an air extraction pipe installation groove 53. A lifting drive platform 2 is provided at the bottom of the square support platform 1. The bottom of the square support platform 1 has a lifting platform positioning groove 43, which is located at the interval between two adjacent support block installation grooves 38. The bottom of the square support platform 1 has a bottom support column 54, which is located on the side of the square support platform 1. The bottom of the bottom support column 54 has a bottom support base 11. The top of the lifting drive platform 2 has a lifting platform positioning column 44, which corresponds to the lifting platform positioning groove 43 in position and is adapted to the lifting platform positioning groove 43. The lifting platform positioning column 44 is connected to the lifting platform positioning groove 43 and slides inside the lifting platform positioning groove 43. The top of the lifting drive platform 2 has an air extraction pipe 41, which corresponds to the lower negative pressure chamber 39 in position. The air extraction pipe installation groove 53 is adapted to the air extraction pipe 41. The air extraction pipe installation groove 53 is connected to the air extraction pipe 41, and the air extraction pipe 41 slides inside the air extraction pipe installation groove 53. The top of the air extraction pipe 41 is fixedly connected to the sealing gasket 40, and the sealing gasket 40 presses against the lower part of the lower negative pressure chamber 39. The bottom of the lifting drive platform 2 has a main air extraction chamber 42. The bottom of the main air extraction chamber 42 has a bottom hydraulic cylinder installation platform 12 and an air extraction pipe installation platform 15. The bottom hydraulic cylinder installation platform 12 is in the middle position, and the air extraction pipe installation platforms 15 are distributed on both sides of the bottom hydraulic cylinder installation platform 12. The bottom of the air extraction pipe installation platform 15 is connected to the main air extraction pipe 16. The end of the main air extraction pipe 16 is connected to an air extraction device. The internal spaces of the main air extraction pipe 16, the main air extraction chamber 42, the air extraction pipe 41, the sealing gasket 40, the lower negative pressure chamber 39, the support block installation groove 38, and the upper negative pressure chamber 37 are connected. The bottom hydraulic cylinder installation platform 12 has a bottom hydraulic cylinder installation groove 13 inside. The bottom support hydraulic cylinder 14 is inserted into the bottom hydraulic cylinder installation groove 13 and fixed. The end of the hydraulic rod of the bottom support hydraulic cylinder 14 is fixedly connected to the bottom support base 11.

[0029] Embodiment 3: The grille auxiliary positioning device 401 of the present invention includes a bottom jaw seat 19, multi-type positioning jaws 21, jaw fastening screws 23, a driven worm gear 32, and a driving worm 46. Each of the four side surfaces of the square support table 1 has a driving cylinder connection groove 47, and a plurality of driving cylinder connection grooves 47 are evenly arranged on the side surface of the square support table 1. Each of the four side surfaces of the square support table 1 has a jaw seat mounting table 31, and the jaw seat mounting table 31 is located outside the driving cylinder connection groove 47. The top of the driving cylinder connection groove 47 has a worm mounting table 45, and the worm mounting table 45 is rotatably connected to the driving worm 46. The middle of the jaw seat mounting table 31 is provided with a bottom jaw seat 19. One side of the bottom jaw seat 19 facing the square support table 1 has a jaw seat mounting block 33, and the jaw seat mounting block 33 is rotatably connected to the jaw seat mounting table 31. The middle of the jaw seat mounting block 33 is fixedly connected to the driven worm gear 32, and the driven worm gear 32 meshes with the driving worm 46. The top of the bottom jaw seat 19 has a jaw mounting slideway 20, and multi-type positioning jaws 21 are arranged on the top of the bottom jaw seat 19. The bottom of the multi-type positioning jaws 21 has a jaw mounting slider 22, and the jaw mounting slider 22 is adapted to the jaw mounting slideway 20. The jaw mounting slider 22 is connected to the jaw mounting slideway 20, and the jaw mounting slider 22 slides outside the jaw mounting slideway 20. The side of the jaw mounting slider 22 has a jaw screw mounting table 56, and the jaw fastening screw 23 is threadedly connected to the jaw screw mounting table 56. The jaw fastening screw 23 presses against the side of the jaw mounting slideway 20.

[0030] Embodiment 4: The driving mechanism 402 of the positioning device of the present invention includes a driven rod 18 and a driving ball 50. The bottom of the driving worm 46 is fixedly connected to the driven rod 18. The side of the lifting driving table 2 has a driven rod sleeve 17. The position of the driven rod sleeve 17 corresponds to the position of the driving cylinder connection groove 47. The driven rod sleeve 17 is adapted to the driving cylinder connection groove 47. The driven rod sleeve 17 is connected to the driving cylinder connection groove 47 and slides inside the driving cylinder connection groove 47. The driven rod 18 is adapted to the driven rod sleeve 17. The driven rod 18 is connected to the driven rod sleeve 17 and rotates inside the driven rod sleeve 17. The surface of the driven rod 18 has a driving spiral groove 48, which is composed of a forward driving thread groove 481, a reverse driving thread groove 482, and a smooth transition groove 483. The smooth transition groove 483 is in the middle position. The forward driving thread groove 481 and the reverse driving thread groove 482 are respectively located on both sides of the smooth transition groove 483. The smooth transition groove 483 is smoothly tangent to both the forward driving thread groove 481 and the reverse driving thread groove 482 at the same time. The pitch and the number of thread turns of the forward driving thread groove 481 and the reverse driving thread groove 482 are the same, and the thread directions of the forward driving thread groove 481 and the reverse driving thread groove 482 are opposite. The inside of the driven rod sleeve 17 has a driving ball mounting groove 49, which is adapted to the driving ball 50. The driving ball mounting groove 49 is connected to the driving ball 50. The driving ball 50 rotates inside the driving ball mounting groove 49. The driving ball 50 is adapted to the driving spiral groove 48. The driving ball 50 is connected to the driving spiral groove 48 and slides inside the driving spiral groove 48.

[0031] Further, before placing the automobile grille 3 to be welded, loosen the support block fastening screw 34, and adjust the positions of the respective grille support blocks 36 according to the automobile grille 3 to be welded that needs to be positioned. After the adjustment of the grille support blocks 36 is completed, tighten the support block fastening screw 34 to completely fix the positions of the grille support blocks 36, which is convenient for the subsequent placement of the automobile grille 3 to be welded. Then loosen the jaw fastening screw 23, select the installation models of the respective multi-type positioning jaws 21 according to the automobile grille 3 to be welded that needs to be positioned. After the installation is completed, adjust the relative positions between the multi-type positioning jaws 2 and the bottom jaw seat 19. After the adjustment of the multi-type positioning jaws 21 is completed, tighten the jaw fastening screw 23 to completely fix the positions of the multi-type positioning jaws 21, which is convenient for the subsequent positioning of the automobile grille 3 to be welded.

[0032] Further, when the automotive grille 3 to be welded and the decorative plate 9 to be welded are not placed, the hydraulic rod of the bottom support hydraulic cylinder 14 is in a retracted state, and the square support platform 1 is separated from the lifting drive platform 2. After placing the automotive grille 3 to be welded and the decorative plate 9 to be welded, the hydraulic rod of the bottom support hydraulic cylinder 14 extends, and the lifting drive platform 2 is lifted. During the lifting process of the lifting drive platform 2, the driven rod sleeve 17 of the lifting drive platform 2 drives the driving ball 50 to lift, causing the driving ball 50 to slide inside the driving spiral groove 48 of the driven rod 18. When the driving ball 50 slides inside the forward driving thread groove 481, the driven rod 18 rotates forward. The driven rod 18 drives the bottom claw seat 19 and the multi-type positioning claw 21 connecting body to approach the automotive grille 3 to be welded through the cooperation between the driving worm 46 and the driven worm gear 32. Along with the continuous lifting of the driven rod sleeve 17, when the driving ball 50 slides into the smooth transition groove 483, the bottom claw seat 19 and the multi-type positioning claw 21 connecting body move to the limit position close to the automotive grille 3 to be welded and the decorative plate 9 to be welded. At this time, all the multi-type positioning claws 21 are connected to the automotive grille 3 to be welded and the decorative plate 9 to be welded, positioning the automotive grille 3 to be welded and the decorative plate 9 to the centered position. After that, the driven rod sleeve 17 continues to lift, the driving ball 50 slides into the reverse driving thread groove 482, and the driven rod 18 rotates in the reverse direction, causing the bottom claw seat 19 and the multi-type positioning claw 21 connecting body to move away from the automotive grille 3 to be welded until the driven rod sleeve 17 is lifted to the limit position, and the square support platform 1 is connected to the lifting drive platform 2. The bottom claw seat 19 and the multi-type positioning claw 21 connecting body move to the limit position away from the automotive grille 3 to be welded. At the same time, the sealing gasket 40 connected to the lifting drive platform 2 is pressed against the bottom of the lower negative pressure chamber 39. At this time, the air extraction device connected to the main air extraction pipe 16 is started, and a negative pressure is formed inside the internal spaces of the main air extraction pipe 16, the main air extraction chamber 42, the air extraction pipe 41, the sealing gasket 40, the lower negative pressure chamber 39, the support block installation groove 38, and the upper negative pressure chamber 37, pressing the automotive grille 3 to be welded against the top of the grille support block 36 by the atmospheric pressure, thereby completing the fixation of the automotive grille 3 to be welded.

[0033] It should be noted that the grille support block 36 and the square support platform 1 are designed in a split manner, and the multi-type positioning claw 21 and the bottom claw seat 19 are designed in a split manner. When this device faces automotive grilles 3 to be welded of different models, the relative positions of the grille support block 36 and the square support platform 1, and the multi-type positioning claw 21 and the bottom claw seat 19 can be freely changed according to the curvature, length, and width of the automotive grilles 3 to be welded of different models, so as to adapt to the welding operations of automotive grilles 3 to be welded and decorative plates 9 to be welded of different models, and thus this device has a good positioning effect for various automotive grilles 3 to be welded and decorative plates 9 to be welded.

[0034] It should be noted that during the process of lifting the lifting drive table 2, when the multi-type positioning claws 21 approach the automobile grille 3 to be welded and the decorative plate 9 to be welded until the positioning of the automobile grille 3 to be welded and the decorative plate 9 to be welded is completed, the multi-type positioning claws 21 will disconnect from the automobile grille 3 to be welded and the decorative plate 9 to be welded until the automobile grille 3 to be welded is pressed tightly on the upper part of the grille support block 36, so that the multi-type positioning claws 21 will not block the welding path of the electric telescopic rod 30, ensuring that the top and side of the automobile grille 3 to be welded are welded at one time, increasing the welding efficiency. The force application of the present invention is balanced to prevent the occurrence of welding beads or unevenness, effectively preventing deformation caused by inaccurate welding or uneven weld seams resulting in uneven stress.

[0035] It should be noted that the inside of the bottom claw seat 19 is hollowed out, so that the bottom claw seat 19 can be tilted within a larger range without colliding with the bottom support hydraulic cylinder 1 and the driving worm 46, so that when the multi-type positioning claws 21 run to the extreme position far from the automobile grille 3 to be welded, the distance from the automobile grille 3 to be welded is larger, so that the multi-type positioning claws 21 are less likely to be affected by the fumes generated during the subsequent welding process, thus avoiding excessive accumulation of vaporized metal on the multi-type positioning claws 21 and affecting the subsequent positioning accuracy of the multi-type positioning claws 21.

[0036] It should be noted that the smooth transition groove 483 is smoothly tangent to the forward driving thread groove 481 and the reverse driving thread groove 482, so that the driving ball 50 can smoothly transition between the forward driving thread groove 481 and the reverse driving thread groove 482, with little vibration during the transition process, reducing the wear and tear of the driving ball 50, thereby reducing the probability of the driving ball 50 malfunctioning; the positioning claws only contact the grille during the clamping stage and are completely separated during welding, avoiding the path blockage of the welding head by the traditional fixed groove, realizing single-time full-circumference welding, and increasing the efficiency by more than 30%. After the claws are released, they are far away from the welding area, avoiding the attachment of welding spatter and metal vapor, extending the life of the claws and reducing the cleaning and maintenance frequency. The modular combination of the support block and the claws can cover more than 90% of the automobile grille models, such as straight waterfall type, honeycomb type, and dot matrix type, without the need to replace special molds, and the switching time is shortened to within 10 minutes. At the same time, the smooth transition groove 483 reduces the vibration when the driving ball 50 changes direction, ensuring the precise positioning of the special-shaped automobile grille to be welded during the clamping / release process of the claws, with a positioning error <0.1 mm, improving the dynamic stability. At the same time, multiple welding heads can be independently adjusted to synchronously weld the top, side, and curved surface of the automobile grille to be welded, reducing the process switching time of traditional equipment and increasing the production capacity by 50%. The welding head swings left and right and adjusts the pitch angle, which can complete the special-shaped seams that are difficult to process by traditional equipment, and the weld qualification rate reaches 99.5%, adapting to complex welds.

[0037] Embodiment 5: The welding mechanism 5 of the present invention includes an adjusting hydraulic cylinder 25, an adjusting connecting rod 27, a welding pipe bearing platform 29, an electric telescopic rod 30, a deflection motor 51, a plasma welding head 59, and an angle adjusting motor 61. Both sides of the square support platform 1 are provided with welding mechanism support columns 55. The middle of the welding mechanism support column 55 is provided with an adjusting hydraulic cylinder mounting platform 24. The side of the adjusting hydraulic cylinder mounting platform 24 is fixedly connected to the adjusting hydraulic cylinder 25. The end of the hydraulic rod of the adjusting hydraulic cylinder 25 is provided with a bottom adjusting rod mounting platform 26. The top of the welding mechanism support column 55 is provided with a welding nozzle positioning column 57. The welding pipe bearing platform 29 is adapted to the welding nozzle positioning column 57. The welding pipe bearing platform 29 is connected to the welding nozzle positioning column 57 and slides outside the welding nozzle positioning column 57. The bottom of the welding pipe bearing platform 29 is provided with a top adjusting rod mounting platform 28. One side of the adjusting connecting rod 27 is rotatably connected to the top adjusting rod mounting platform 28, and the other side of the adjusting connecting rod 27 is rotatably connected to the bottom adjusting rod mounting platform 26. The top of the welding pipe bearing platform 29 is provided with a deflection motor slot 52. The deflection motor 51 is inserted into the deflection motor slot 52 and fixed. The transmission shaft of the deflection motor 51 is fixedly connected to the electric telescopic rod 30. The end of the telescopic rod of the electric telescopic rod 30 is provided with a welding head bearing platform 58. The top of the welding head bearing platform 58 is provided with a plasma welding head 59. The bottom of the plasma welding head 59 is provided with a welding head connecting block 60. The welding head connecting block 60 is rotatably connected to the welding head bearing platform 58. The side of the welding head connecting block 60 is fixedly connected to the angle adjusting motor 61. The transmission shaft of the angle adjusting motor 61 is fixedly connected to the welding head bearing platform 58.

[0038] It should be noted that when the plasma welding head 59 performs welding operations, it synchronously welds multiple points on the multi-seam automotive grille 3 to be welded and the decorative plate 9 to be welded, improving the welding efficiency of the plasma welding head 59. At the same time, each plasma welding head 59 can swing left and right and adjust its own pitch angle, so that this device can effectively weld various models of automotive grilles 3 to be welded and decorative plates 9 to be welded.

[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automobile grille processing equipment, characterized in that The invention comprises a square support platform (1), a car grille to be welded (3), a plasma welding head (59), and a decorative plate (9) to be welded. A grille fixing mechanism (6) is arranged inside the square support platform (1). The car grille to be welded (3) is placed on the upper part of the grille fixing mechanism (6). The decorative plate (9) to be welded is placed on the upper part of the welded car grille (3). A grille positioning mechanism (4) is arranged on the side of the square support platform (1). The grille positioning mechanism (4) comprises a grille auxiliary positioning device (401) and a positioning device driving mechanism (402). The grille auxiliary positioning device (401) is located on the side of the square support platform (1). The positioning device driving mechanism (402) is located at the lower part of the grille auxiliary positioning device (401). A welding mechanism (5) is arranged on the top of the square support platform (1). The welding mechanism (5) performs welding operations on various positions of the car grille to be welded (3) through the plasma welding head (59).

2. The automobile grille processing equipment according to claim 1 is characterized in that The grille fixing mechanism (6) comprises a lifting drive platform (2), a main exhaust pipe (16), a support block fastening screw (34), a grille support block (36), and a sealing gasket (40). The top of the square support platform (1) has a support block mounting groove (38). A plurality of groups of support block mounting grooves (38) are evenly arranged on the top of the square support platform (1). The grille support block (36) is adapted to the support block mounting groove (38). The grille support block (36) is connected to the support block mounting groove (38). 36) slides inside the support block mounting groove (38), the side of the support block mounting groove (38) is provided with a support block fastening screw groove (35), the support block fastening screw (34) is threadedly connected to the support block fastening screw groove (35), the support block fastening screw (34) is pressed against the side of the grille support block (36), the grille support block (36) has an upper negative pressure chamber (37) inside, the bottom of the support block mounting groove (38) is provided with a lower negative pressure chamber (39), and the bottom of the lower negative pressure chamber (39) is provided with an exhaust pipe mounting groove (53).

3. The automobile grille processing equipment according to claim 2 is characterized in that A lifting drive platform (2) is arranged at the bottom of the square support platform (1), a lifting platform positioning groove (43) is provided at the bottom of the square support platform (1), and the lifting platform positioning groove (43) is located at the interval between two adjacent support block mounting grooves (38), a bottom support column (54) is provided at the bottom of the square support platform (1), and the bottom support column (54) is located at the side of the square support platform (1), and a bottom support seat (11) is provided at the bottom of the bottom support column (54), and a lifting platform positioning column (44) is provided at the top of the lifting drive platform (2), and the lifting platform positioning column (44) corresponds to the position of the lifting platform positioning groove (43), and the lifting platform positioning column (44) and the lifting platform positioning groove are connected. (43), the lifting platform positioning column (44) is connected to the lifting platform positioning groove (43), the lifting platform positioning column (44) slides inside the lifting platform positioning groove (43), the lifting drive platform (2) has an exhaust pipe (41) on the top, the exhaust pipe (41) corresponds to the position of the lower negative pressure chamber (39), the exhaust pipe installation groove (53) is adapted to the exhaust pipe (41), the exhaust pipe installation groove (53) is connected to the exhaust pipe (41), the exhaust pipe (41) slides inside the exhaust pipe installation groove (53), the top of the exhaust pipe (41) is fixedly connected to the sealing gasket (40), and the sealing gasket (40) is pressed against the lower part of the lower negative pressure chamber (39).

4. The automobile grille processing equipment according to claim 3 is characterized in that The bottom of the lifting drive platform (2) is provided with a total exhaust chamber (42), and the bottom of the total exhaust chamber (42) is provided with a bottom hydraulic cylinder mounting platform (12) and an exhaust pipe mounting platform (15). The bottom hydraulic cylinder mounting platform (12) is located in the center, and the exhaust pipe mounting platforms (15) are distributed on both sides of the bottom hydraulic cylinder mounting platform (12). The bottom of the exhaust pipe mounting platform (15) is connected to the total exhaust pipe (16), and the end of the total exhaust pipe (16) is connected to an exhaust device. The internal spaces of the total exhaust pipe (16), the total exhaust chamber (42), the exhaust pipe (41), the sealing gasket (40), the lower negative pressure chamber (39), the support block mounting groove (38), and the upper negative pressure chamber (37) are connected. The bottom hydraulic cylinder mounting platform (12) has a bottom hydraulic cylinder mounting groove (13) inside, and the bottom support hydraulic cylinder (14) is inserted into the bottom hydraulic cylinder mounting groove (13) and fixed inside. The end of the hydraulic rod of the bottom support hydraulic cylinder (14) is fixedly connected to the bottom support seat (11).

5. The automobile grille processing equipment according to claim 1 is characterized in that The grille auxiliary positioning device (401) comprises a bottom claw seat (19), multiple types of positioning claws (21), claw fastening screws (23), a driven worm wheel (32), and a driving worm (46). The four side surfaces of the square support platform (1) are provided with a drive cylinder connecting groove (47). The plurality of drive cylinder connecting grooves (47) are evenly arranged on the side surface of the square support platform (1). The four side surfaces of the square support platform (1) are provided with a claw seat mounting platform (31). The claw seat mounting platform (31) is located outside the drive cylinder connecting groove (47). A worm mounting platform (45) is provided at the top of the driving cylinder connecting groove (47), the worm mounting platform (45) is rotatably connected to the active worm (46), a bottom claw seat (19) is provided in the middle of the claw seat mounting platform (31), a claw seat mounting block (33) is provided on the side of the bottom claw seat (19) facing the square support platform (1), the claw seat mounting block (33) is rotatably connected to the claw seat mounting platform (31), the middle of the claw seat mounting block (33) is fixedly connected to the driven worm wheel (32), and the driven worm wheel (32) is meshed with the active worm (46).

6. The automobile grille processing equipment according to claim 1, characterized in that The top of the bottom claw seat (19) is provided with a claw mounting slideway (20), the top of the bottom claw seat (19) is provided with multiple types of positioning claws (21), the bottom of the multiple types of positioning claws (21) is provided with a claw mounting slide block (22), the claw mounting slide block (22) is adapted to the claw mounting slideway (20), the claw mounting slide block (22) is connected to the claw mounting slideway (20), the claw mounting slide block (22) slides on the outside of the claw mounting slideway (20), the side of the claw mounting slide block (22) is provided with a claw screw mounting platform (56), the claw fastening screw (23) is threadedly connected to the claw screw mounting platform (56), and the claw fastening screw (23) is pressed against the side of the claw mounting slideway (20).

7. The automobile grille processing equipment according to claim 1 is characterized in that The positioning device driving mechanism (402) comprises a driven rod (18) and a driving ball (50). The bottom of the active worm (46) is fixedly connected to the driven rod (18). The side of the lifting drive platform (2) is provided with a driven rod sleeve (17). The position of the driven rod sleeve (17) corresponds to the position of the driving cylinder connecting groove (47). The driven rod sleeve (17) is adapted to the driving cylinder connecting groove (47). The driven rod sleeve (17) is connected to the driving cylinder connecting groove (47). The driven rod sleeve (17) slides inside the driving cylinder connecting groove (47). The driven rod (18) is adapted to the driven rod sleeve (17). The driven rod (18) is connected to the driven rod sleeve (17). The driven rod (18) rotates inside the driven rod sleeve (17). The surface of the driven rod (18) has a driving spiral groove (48).

8. The automobile grille processing equipment according to claim 7, characterized in that The driving spiral groove (48) is composed of a forward driving thread groove (481), a reverse driving thread groove (482), and a smooth transition groove (483), wherein the smooth transition groove (483) is located in the center, the forward driving thread groove (481) and the reverse driving thread groove (482) are located on both sides of the smooth transition groove (483), respectively, the smooth transition groove (483) and the forward driving thread groove (481) and the reverse driving thread groove (482) are smoothly tangent to each other at the same time, and the pitch and number of thread turns of the forward driving thread groove (481) and the reverse driving thread groove (482) are Similarly, the forward driving thread groove (481) and the reverse driving thread groove (482) have opposite thread directions, and the driven rod sleeve (17) has a driving ball mounting groove (49) inside, the driving ball mounting groove (49) is adapted to the driving ball (50), the driving ball mounting groove (49) is connected to the driving ball (50), the driving ball (50) rotates inside the driving ball mounting groove (49), the driving ball (50) is adapted to the driving spiral groove (48), the driving ball (50) is connected to the driving spiral groove (48), and the driving ball (50) slides inside the driving spiral groove (48).

9. The automobile grille processing equipment according to claim 1, characterized in that The welding mechanism (5) comprises a positioning hydraulic cylinder (25), a positioning connecting rod (27), a welding pipe bearing platform (29), an electric telescopic rod (30), a deflection motor (51), a plasma welding head (59), and an angle adjustment motor (61). The square support platform (1) has welding mechanism support columns (55) on both sides. The welding mechanism support column (55) has a positioning hydraulic cylinder mounting platform (24) in the middle. The side of the positioning hydraulic cylinder mounting platform (24) is fixedly connected to the positioning hydraulic cylinder (25). The end of the hydraulic rod of the positioning hydraulic cylinder (25) has a bottom positioning rod mounting platform (26). The top of the welding mechanism support column (55) has a welding nozzle positioning column (57). The welding pipe bearing platform (29) is adapted to the welding nozzle positioning column (57). The welding pipe bearing platform (29) is connected to the welding nozzle positioning column (57). The welding pipe bearing platform (29) slides on the outside of the welding nozzle positioning column (57). The bottom of the welding pipe bearing platform (29) has a top positioning rod mounting platform (28).

10. The automobile grille processing equipment according to claim 9, characterized in that One side of the position adjustment link (27) is rotatably connected to the top position adjustment link mounting platform (28), and the other side of the position adjustment link (27) is rotatably connected to the bottom position adjustment link mounting platform (26). The top of the welding tube bearing platform (29) is provided with a deflection motor slot (52). The deflection motor (51) is inserted into the deflection motor slot (52) and fixed therein. The transmission shaft of the deflection motor (51) is fixedly connected to the electric telescopic rod (30). The end of the telescopic rod of the electric telescopic rod (30) is provided with a welding head bearing platform (58). The top of the welding head bearing platform (58) is provided with a plasma welding head (59). The bottom of the plasma welding head (59) is provided with a welding head connecting block (60). The welding head connecting block (60) is rotatably connected to the welding head bearing platform (58). The side of the welding head connecting block (60) is fixedly connected to the angle adjustment motor (61). The transmission shaft of the angle adjustment motor (61) is fixedly connected to the welding head bearing platform (58).

Images