Automatic welding device for processing automotive upholstery

Abstract

The invention relates to the technical field of welding devices, and particularly discloses an automatic welding device for processing automotive upholstery, which comprises a rack, a machine head is arranged on the rack, and a welding structure is arranged on the machine head in a lifting manner; the supporting seat is arranged on the rack, a concave cavity is formed in the supporting seat, and the sliding support can slide in and out of the concave cavity of the supporting seat; the supporting assembly is arranged on the sliding support in a lifting mode, and a first rotating roller and a second rotating roller are rotationally arranged on the supporting assembly; the cleaning assembly is arranged in the supporting seat, and the cleaning assembly is used for cleaning the peripheral surfaces of the first rotating roller and the second rotating roller; according to the automatic welding device for automobile interior trim part machining, wrinkles on the top of a sheet-shaped plastic part or air existing between the sheet-shaped plastic part and a machining face can be flattened, the welding precision is improved, and the economic cost of production is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to an automatic welding device for processing automobile interior decoration parts. Background Art

[0002] Automatic welding devices for automobile interior processing usually refer to equipment used for the automated production of automobile interior parts such as seat frames, instrument panels, door panels, door panel seals, etc., and welding devices include ultrasonic welding devices. Ultrasonic welding devices are welding devices that use ultrasonic vibrations to generate heat to achieve material connection. They are mainly used for welding plastics, rubbers, certain thermoplastic composite materials, thin metal sheets and other materials.

[0003] A Chinese patent with authorization announcement number CN113510358B discloses an ultrasonic welding device, including an upper mold assembly and a lower mold assembly, wherein the upper mold assembly includes an upper module and an ultrasonic horn, and the ultrasonic horn is arranged on the side of the upper module facing the lower mold assembly; the lower mold assembly includes a lower mold plate, and the lower mold plate is provided with a limit plate for positioning the product, and the lower mold plate is provided with a pre-support member for supporting the upper module. This application limits the upper module by the pre-support member, which can achieve the effect of positioning the upper module, facilitates the operator to align the ultrasonic horn with the product, reduces the occurrence of errors between the upper mold assembly and the lower mold assembly, thereby improving the accuracy of welding and helping to improve the quality of the product.

[0004] The above patent document limits the upper module by pre-supporting parts, so as to achieve the effect of positioning the upper module. The existing ultrasonic automatic welding device usually loads the stacked thin plastic parts through a robot, places the thin plastic sheet on the welding table, and generates friction at the contact surface of the workpiece through ultrasonic high-frequency vibration. The heat generated by the friction causes the material to melt locally. However, if the sheet plastic is wrinkled due to extrusion during stacking or the air inside is placed on the welding table, making the material uneven, it will lead to reduced welding accuracy, affect the production qualification rate, and seriously cause the product to be scrapped, thereby increasing the economic cost of production. Summary of the invention

[0005] The present invention provides an automatic welding device for processing automobile interior decoration parts, aiming to solve the technical problem in the related art that if sheet plastics are wrinkled due to extrusion during stacking or the air inside is placed on the welding table, the material will be uneven, which will lead to reduced welding accuracy, affect the production qualification rate, and increase the production economic cost.

[0006] An automatic welding device for processing automobile interior decoration parts of the present invention comprises:

[0007] A frame, wherein a machine head is arranged on the frame, and a welding structure is arranged on the machine head for lifting and lowering, and the welding structure can exert pressure on the plastic sheet and vibrate;

[0008] A support seat is arranged on the frame, a concave cavity is provided inside the support seat, a sliding bracket is arranged in the concave cavity of the support seat, and the sliding bracket can slide in and out of the concave cavity of the support seat;

[0009] A support assembly is lifted and arranged on the sliding bracket, a first roller and a second roller are rotatably arranged on the support assembly, and the lifting and lowering of the support assembly drives the first roller and the second roller to move closer to or away from the sheet plastic part, and at the same time, the support assembly drives the first roller and the second roller to move in opposite directions at the same horizontal height;

[0010] The cleaning component is arranged inside the support seat and is used to clean the outer peripheral surfaces of the first roller and the second roller to ensure that the pressure and contact area of ​​the first roller and the second roller on the surface of the plastic part are always consistent.

[0011] Preferably, slideways are provided on the opposite side walls of the inner concave cavity of the support seat, and the sliding bracket can slidably cooperate with the slideways, and the sliding bracket includes: a front support plate, a rear support plate and a plurality of slide bars, the front support plate and the rear support plate are spaced apart along the length direction of the concave cavity, and the front support plate is close to the opening of the concave cavity, and the plurality of slide bars are arranged on the left and right sides of the front support plate and the rear support plate, and the slide bars extend out of the support seat, and the slide bars are fixedly connected to the front support plate and the rear support plate, and the slide bars slideably cooperate with the slideways.

[0012] Preferably, the supporting assembly comprises: a fixed plate and a T-shaped rod, and there are two fixed plates, the two fixed plates are respectively arranged on the top of the front support plate and the rear support plate, and the front support plate and the rear support plate are provided with sliding grooves on the opposite side walls, and the sliding grooves extend to the opposite side walls of the two fixed plates, and sliding blocks are arranged in the two sliding grooves, and the first connecting rods are respectively arranged on the opposite side walls of the sliding blocks, and connecting plates are respectively arranged on the opposite end surfaces of the two first connecting rods, and the two ends of the T-shaped rod are respectively connected to the opposite side walls of the two connecting plates, and the protruding parts of the T-shaped rod face downwards, and a motor is arranged on the top of the fixed plate, and a screw rod is arranged on the output end of the motor, and the screw rod is threadedly matched with the sliding block.

[0013] Preferably, a first bevel gear is provided at the bottom end of the protruding part of the T-shaped rod, and a motor is provided inside the T-shaped rod, the output end of the motor is transmission-connected to the first bevel gear, a rotating connecting rod is provided on the opposite side walls of the sliding block, a sleeve is rotatably provided on the outer circumference of the rotating connecting rod, and the two sleeves are arranged at intervals along the axial direction of the rotating connecting rod, and the sleeve is rotatably connected to the connecting plate, a second bevel gear is provided on one of the opposite end faces of the two sleeves, and a third bevel gear is provided on the outer circumference of the rotating connecting rod, and the first bevel gear is meshed with the second bevel gear and the third bevel gear at the same time.

[0014] Preferably, a first rocker arm is fixedly provided on the outer circumference of the two sleeves, and the second roller is rotatably connected to the two first rocker arms, a second rocker arm is provided on the outer circumference of the rotating connecting rod at intervals along the axial direction, and the first roller is rotatably connected to the opposite side walls of the two second rocker arms.

[0015] Preferably, the cleaning assembly includes: a cleaning seat, a plurality of fixed support plates and a rotating roller, the cleaning seat is arranged on the top of the support seat, and the cleaning seat is also provided with a second concave cavity, and the opening of the second concave cavity is consistent with the direction of the concave cavity opening of the support seat, and the plurality of fixed support plates are arranged on the opposite side walls in the second concave cavity.

[0016] Preferably, a first telescopic rod is provided at the bottom of the fixed support plate, a self-rotating roller is provided at the bottom end of the first telescopic rod, and the self-rotating roller is provided along the length direction of the second concave cavity, a group of second telescopic rods are respectively provided on the opposite side walls inside the concave cavity of the support seat, and a group of second telescopic rods has two, and a scraper is provided on the end face of each group of second telescopic rods, which is used to scrape off dust and impurities adhered to the first rotating roller and the second rotating roller.

[0017] Preferably, two collecting grooves are provided on the bottom wall of the inner cavity of the support seat, and collecting holes are provided inside the collecting grooves at intervals along the length direction.

[0018] Preferably, a welding table is provided on the top of the frame, a lower support plate is provided on the top of the welding table, a first extension rod is provided on the bottom of the machine head, an extrusion plate is provided on the bottom of the first extension rod, and the first extension rod can push the extrusion plate to rise and fall.

[0019] Preferably, a protection box is provided on one side outer wall of the support seat, a second extension rod is provided inside the protection box, and an output end of the second extension rod is connected to the rear support plate so that the second extension rod pushes the sliding bracket to slide.

[0020] The beneficial effects of the present invention are:

[0021] When ultrasonic welding is performed on sheet plastic parts, the robot will place the stacked sheet plastic parts on the processing table on the top of the frame, and then the sliding bracket will slide out of the support seat from the inside to the outside so that the sliding bracket is located directly above the sheet plastic part. The sliding of the sliding bracket drives the support assembly to move, and the movement of the support assembly drives the first roller and the second roller, so that the first roller and the second roller are located directly above the sheet plastic part. Then the support assembly drives the first roller and the second roller to move downward. After the first roller and the second roller contact the sheet plastic part, the support assembly drives the first roller and the second roller to move in opposite directions at the same horizontal height, so that the first roller and the second roller move in opposite directions on the top of the sheet plastic part, which can smooth the wrinkles on the top of the sheet plastic part or the air between the processing surface, improve the welding accuracy, and reduce the economic cost of production.

[0022] The air between the sheet plastic part and the processing table can be squeezed out by pressing with the first roller and the second roller. After the squeezing, the first roller and the second roller are reset and stored in the support seat. After the two plastic parts are placed, ultrasonic welding is performed through the welding structure to improve the welding accuracy. At the same time, in order to ensure that the pressure of the first roller and the second roller on the plastic part is consistent, the cleaning component will clean the surface of the first roller and the second roller after each leveling to improve the qualified rate of welded products. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a schematic diagram of the frame structure of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the support base of the present invention.

[0026] Figure 4 It is a schematic diagram of the cleaning seat structure of the present invention.

[0027] Figure 5 It is a schematic diagram of the scraper structure of the present invention.

[0028] Figure 6 It is a schematic diagram of the first rotating roller structure of the present invention.

[0029] Figure 7 It is a schematic diagram of the first bevel gear structure of the present invention.

[0030] Figure 8 It is a schematic diagram of the second roller structure of the present invention.

[0031] Fig. 9 It is a schematic diagram of the structure of the self-rotating roller of the present invention.

[0032] Fig.10It is a schematic diagram of the structure of the extruded plate of the present invention.

[0033] Reference numerals:

[0034] 10. Frame; 11. Welding table; 12. Lower support plate; 20. Machine head; 30. Support seat; 31. Slideway; 32. Front support plate; 33. Rear support plate; 34. Slide bar; 35. Fixed plate; 36. First connecting rod; 37. Connecting plate; 38. T-bar; 40. Slideway; 41. Sliding block; 42. Motor; 43. Screw; 44. First bevel gear; 45. Rotating connecting rod; 46. Sleeve; 47. Second bevel gear Gear; 48, first swing arm; 49, second swing arm; 50, third bevel gear; 51, fixed support plate; 52, first telescopic rod; 53, self-rotating roller; 54, cleaning seat; 55, second telescopic rod; 56, scraper; 57, first opening; 58, collecting trough; 59, collecting hole; 60, first rotating roller; 61, second rotating roller; 70, first extension rod; 71, extrusion plate; 80, protective box; 81, second extension rod. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0036] like Figures 1 to 10 As shown, an automatic welding device for processing automobile interior decoration parts of the present invention includes: a frame 10 and a support seat 30, the support seat 30 is arranged on the top of the frame 10, the top of the support seat 30 is provided with a machine head 20, the machine head 20 is provided with a welding structure for lifting and lowering, the welding structure can apply pressure to the plastic sheet and vibrate, and also includes: a sliding bracket, a support assembly and a cleaning assembly, a first roller 60 and a second roller 61, the sliding bracket is slidably arranged inside the support seat 30, and the sliding bracket can slide in and out in the support seat 30, the support assembly is lifted and lowered on the sliding bracket, the first roller 60 and the second roller 61 are rotatably arranged on the support assembly, and the support assembly drives the first roller 60 and the second roller 61 to extrude the sheet plastic part, and at the same time, the support assembly drives the first roller 60 and the second roller 61 to move in opposite directions at the same horizontal height, the cleaning assembly is arranged inside the support seat 30, and the cleaning assembly is used to clean the outer peripheral surface of the first roller 60 and the second roller 61 to ensure that the pressure and contact area of ​​the first roller 60 and the second roller 61 on the surface of the plastic part are always consistent.

[0037] When ultrasonic welding is performed on sheet plastic parts, the robot will place the stacked sheet plastic parts on the processing table on the top of the frame 10, and then the sliding bracket will slide out of the support seat 30 from the inside to the outside, so that the sliding bracket is located directly above the sheet plastic part, and the sliding of the sliding bracket drives the support assembly to move, and the movement of the support assembly drives the first roller 60 and the second roller 61, so that the first roller 60 and the second roller 61 are located directly above the sheet plastic part, and then the support assembly drives the first roller 60 and the second roller 61 to move downward. After the first roller 60 and the second roller 61 contact the sheet plastic part, the support assembly drives the first roller 60 and the second roller 61 to move in opposite directions at the same horizontal height, so that the first roller 60 and the second roller 61 move in opposite directions on the top of the sheet plastic part, so that the wrinkles on the top of the sheet plastic part can be smoothed.

[0038] At the same time, the air between the sheet plastic part and the processing table can be squeezed out by pressing with the first roller 60 and the second roller 61. After the squeezing, the first roller 60 and the second roller 61 are reset and stored in the support seat 30. After the two plastic parts are placed, ultrasonic welding is performed through the welding structure to improve the welding accuracy. At the same time, in order to ensure that the pressure of the first roller 60 and the second roller 61 on the plastic part is consistent, the cleaning component will clean the surface of the first roller 60 and the second roller 61 after each leveling, so as to improve the qualified rate of welded products.

[0039] like Figures 1 to 5 As shown, a concave cavity is provided inside the support seat 30, and the concave cavity opens toward the processing table. Slideways 31 are provided on the opposite side walls of the concave cavity inside the support seat 30, and the sliding bracket can slide with the slideway 31 so that the sliding bracket can slide stably along the length direction of the slideway 31. The sliding bracket includes: a front support plate 32, a rear support plate 33 and a plurality of slide bars 34. The front support plate 32 and the rear support plate 33 are spaced apart along the length direction of the concave cavity, and the front support plate 32 is close to the opening of the concave cavity, and the plurality of slide bars 34 are spaced apart from each other. The support rails 31 are provided with the support rails 31 and the support rails 32. The support rails 31 are provided with the support rails 31 and the support rails 33. The support rails 31 are provided with the support rails 31 and the support rails 31 are provided with the support rails 31 ...

[0040] like Figures 6 to 8As shown, the support assembly is lifted and set on the sliding bracket, and the support assembly includes: a fixed plate 35 and a T-shaped rod 38, and the fixed plates 35 have two, the two fixed plates 35 are respectively arranged on the top of the front support plate 32 and the rear support plate 33, and the front support plate 32 and the rear support plate 33 are provided with sliding grooves 40 on the opposite side walls, and the sliding grooves 40 extend to the opposite side walls of the two fixed plates 35, and sliding blocks 41 are arranged in the two sliding grooves 40, and the opposite side walls of the sliding blocks 41 are respectively provided with first connecting rods 36, and the opposite end surfaces of the two first connecting rods 36 are respectively provided with connecting plates 37, and the two ends of the T-shaped rod 38 are respectively connected to the opposite side walls of the two connecting plates 37, and the protruding parts of the T-shaped rod 38 face downwards, and a motor 42 is arranged on the top of the fixed plate 35, and a screw rod 43 is arranged on the output end of the motor 42, and the screw rod 43 is threadedly matched with the sliding block 41.

[0041] like Figures 6 to 8 As shown, a first bevel gear 44 is provided at the bottom end of the protruding part of the T-shaped rod 38, and a motor is provided inside the T-shaped rod 38, and the output end of the motor is transmission-connected to the first bevel gear 44, and a rotating connecting rod 45 is provided on the opposite side walls of the sliding block 41, and a sleeve 46 is rotatably sleeved on the outer peripheral surface of the rotating connecting rod 45, and the two sleeves 46 are spaced apart along the axial direction of the rotating connecting rod 45, and the sleeve 46 is rotatably connected to the connecting plate 37, and the connecting plate 37 supports the sleeve 46, and the other end surfaces of the two sleeves 46 relative to each other A second bevel gear 47 is provided on one end face, a third bevel gear 50 is provided on the outer peripheral surface of the rotating connecting rod 45, and the first bevel gear 44 is meshed with the second bevel gear 47 and the third bevel gear 50 at the same time. The outer peripheral surfaces of the two sleeves 46 are fixedly provided with first rocker bars 48, and the second roller 61 is rotatably connected to the two first rocker bars 48. Second rocker bars 49 are provided on the outer peripheral surface of the rotating connecting rod 45 at intervals in the axial direction, and the first roller 60 is rotatably connected to the opposite side walls of the two second rocker bars 49.

[0042] When processing the wrinkles on the sheet plastic part, first the motor 42 drives the screw rod 43 to rotate, the screw rod 43 rotates to drive the sliding block 41 to move, the sliding block 41 moves to drive the first connecting rod 36 and the connecting plate 37 to move downward, the connecting plate 37 moves to drive the T-shaped rod 38 to move, and at the same time the sliding block 41 moves to drive the rotating connecting rod 45 and the sleeve 46 to move, and the rotating connecting rod 45 and the sleeve 46 move to drive the second swing rod 49 and the first swing rod 48 to move downward, the second swing rod 49 and the first swing rod 48 move downward to drive the first roller 60 and the second roller 61 to move downward, when the first roller 60 and the second roller 61 descend to contact the sheet plastic part, at this time the first roller 60 and the second roller 61 are located at the center position of the length direction of the sheet plastic part, and when continuing to descend, the first roller 60 and the second roller 61 squeeze the sheet plastic part.

[0043] At the same time, the motor drives the first bevel gear 44 to rotate. Since the first bevel gear 44 is meshed with the second bevel gear 47 and the third bevel gear 50 at the same time, the rotation of the first bevel gear 44 drives the second bevel gear 47 and the third bevel gear 50 to rotate in the opposite direction synchronously. The rotation of the second bevel gear 47 drives the sleeve 46 and the first swing rod 48 to rotate. The rotation of the third bevel gear 50 drives the rotating connecting rod 45 and the second swing rod 49 to rotate, so that the first swing rod 48 and the second swing rod 49 rotate in the opposite direction synchronously around the axis of the rotating connecting rod 45. The first roller 60 and the second roller 61 move to ensure that the pressure on the sheet plastic part is consistent, so that the first roller 60 and the second roller 61 can move on the sheet plastic part, thereby avoiding the first roller 60 and the second roller 61 from pressing down to cause damage to the sheet plastic part, so that the wrinkles on the sheet plastic part can be smoothed, and at the same time, the air between the sheet plastic part and the processing table can be squeezed to improve the accuracy of ultrasonic welding, and the first roller 60 and the second roller 61 can adhere to some fine dust or impurities when moving on the sheet plastic part, thereby improving the production quality of the product.

[0044] like Figure 4 , Figure 5 and Figure 8 As shown, the cleaning assembly includes: a cleaning seat 54, a plurality of fixed support plates 51 and a self-rotating roller 53. The cleaning seat 54 is arranged on the top of the support seat 30, and the cleaning seat 54 is also provided with a second concave cavity, and the opening of the second concave cavity is consistent with the opening direction of the concave cavity of the support seat 30. The plurality of fixed support plates 51 are arranged on the opposite side walls in the second concave cavity. The bottom of the fixed support plates 51 is provided with a first telescopic rod 52. The self-rotating roller 53 is arranged at the bottom end of the first telescopic rod 52, and the self-rotating roller 53 is arranged along the length direction of the second concave cavity. A group of second telescopic rods 55 are respectively arranged on the opposite side walls inside the concave cavity of the support seat 30, and a group of second telescopic rods 55 has two. A scraper 56 is arranged on the end face of each group of second telescopic rods 55. The scraper 56 is used to scrape off dust and impurities adhered to the first rotating roller 60 and the second rotating roller 61. Two collecting grooves 58 are arranged on the bottom wall of the inner concave cavity of the support seat 30, and the collecting grooves 58 are opened in a V shape. The inside of the collecting grooves 58 is provided with collecting holes 59 spaced apart along the length direction.

[0045] When the first roller 60 and the second roller 61 finish leveling the sheet plastic part, the sliding bracket and the support assembly drive the first roller 60 and the second roller 61 to be stored in the concave cavity of the support seat 30, and the motor drives the first roller 60 and the second roller 61 to rotate synchronously in opposite directions around the axis of the rotating connecting rod 45, so that the first roller 60 and the second roller 61 are respectively stopped by the two scrapers 56, and at the same time, the first telescopic rod 52 extends the self-rotating roller 53 to move downward, so that the two self-rotating rollers 53 are respectively stopped by the first roller 60 and the second roller 61, and the rotation of the self-rotating roller 53 drives the first roller 60 and the second roller 61 to rotate. The scraper 56 scrapes the outer surface of the first roller 60 and the second roller 61, and the scraped dust and impurities will fall into the collecting groove 58. Finally, the collecting hole 59 is sucked by the suction device under negative pressure, so that the dust and impurities can be collected through the collecting hole 59, so that the surface of the first roller 60 and the second roller 61 is always in a clean state, thereby ensuring that when the first roller 60 and the second roller 61 are leveling the sheet plastic part, the contact surface and pressure of the first roller 60 and the second roller 61 with the sheet plastic part are always consistent, avoiding tearing or position change of the sheet plastic part, and ensuring the quality of the welding product.

[0046] like Figures 1 to 10 As shown, a welding table 11 is provided on the top of the frame 10, and a lower support plate 12 is provided on the top of the welding table 11. The robot can place the stacked sheet plastic parts on the lower support plate 12. A first extension rod 70 is provided at the bottom of the head 20, and an extrusion plate 71 is provided at the bottom of the first extension rod 70. The first extension rod 70 can push the extrusion plate 71 up and down so that the extrusion plate 71 and the lower support plate 12 can perform ultrasonic vibration welding on the plastic parts.

[0047] like Figures 2 to 3 As shown, a protective box 80 is provided on one side outer wall of the support seat 30, and a second extension rod 81 is provided inside the protective box 80, and the output end of the second extension rod 81 is connected to the rear support plate 33, so that the second extension rod 81 pushes the sliding bracket to slide, and the rear support plate 33 is symmetrically provided with a first opening 57, so that the sliding bracket can avoid interference between the rear support plate 33 and the scraper 56 when moving.

[0048] It should be noted that after the first roller 60 and the second roller 61 smooth the sheet plastic part each time, the cleaning assembly will clean the first roller 60 and the second roller 61 to ensure the smoothing effect of each subsequent plastic part, thereby ensuring the qualified rate of product welding.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automatic welding device for processing automobile interior parts, characterized in that: include: A frame (10), wherein a machine head (20) is arranged on the frame (10), and a welding structure is arranged on the machine head (20) for lifting, and the welding structure can exert pressure on the plastic sheet and vibrate; A support seat (30) is arranged on the frame (10), a concave cavity is provided inside the support seat (30), a sliding bracket is arranged in the concave cavity of the support seat (30), and the sliding bracket can slide in and out of the concave cavity of the support seat (30); A support assembly is lifted and arranged on a sliding bracket, a first rotating roller (60) and a second rotating roller (61) are rotatably arranged on the support assembly, and the lifting and lowering of the support assembly drives the first rotating roller (60) and the second rotating roller (61) to move closer to or away from the sheet-like plastic part, and at the same time, the support assembly drives the first rotating roller (60) and the second rotating roller (61) to move in opposite directions at the same horizontal height; A cleaning component is arranged inside the support seat (30), and is used to clean the outer peripheral surfaces of the first rotating roller (60) and the second rotating roller (61), so as to ensure that the pressure and contact area of ​​the first rotating roller (60) and the second rotating roller (61) on the surface of the plastic part are always consistent.

2. The automatic welding device for processing automobile interior parts according to claim 1, characterized in that: The opposite side walls of the inner cavity of the support seat (30) are provided with slideways (31), and the sliding bracket can slide with the slideway (31). The sliding bracket comprises: a front support plate (32), a rear support plate (33) and a plurality of slide bars (34). The front support plate (32) and the rear support plate (33) are arranged at intervals along the length direction of the cavity. The front support plate (32) is close to the opening of the cavity, and the plurality of slide bars (34) are arranged on the left and right sides of the front support plate (32) and the rear support plate (33). The slide bars (34) extend out of the support seat (30). The slide bars (34) are fixedly connected to the front support plate (32) and the rear support plate (33), and the slide bars (34) slide with the slideway (31).

3. The automatic welding device for automobile interior decoration parts processing according to claim 2 is characterized in that: The support assembly comprises: a fixed plate (35) and a T-shaped rod (38), wherein the fixed plates (35) are provided with two, the two fixed plates (35) are respectively arranged on the top of the front support plate (32) and the rear support plate (33), and the front support plate (32) and the rear support plate (33) are provided with sliding grooves (40) on the opposite side walls, and the sliding grooves (40) extend to the opposite side walls of the two fixed plates (35), and the two sliding grooves (40) are provided with sliding blocks (41), and the sliding blocks (41) First connecting rods (36) are respectively arranged on opposite side walls, connecting plates (37) are respectively arranged on opposite end surfaces of the two first connecting rods (36), two ends of a T-shaped rod (38) are respectively connected to opposite side walls of the two connecting plates (37), and the protruding parts of the T-shaped rod (38) face downwards, a motor (42) is arranged on the top of the fixing plate (35), a screw rod (43) is arranged at the output end of the motor (42), and the screw rod (43) is threadedly matched with the sliding block (41).

4. The automatic welding device for processing automobile interior parts according to claim 3, characterized in that: A first bevel gear (44) is arranged at the bottom end of the protruding portion of the T-shaped rod (38), and a motor is arranged inside the T-shaped rod (38), the output end of the motor is transmission-connected to the first bevel gear (44), and a rotating connecting rod (45) is arranged on opposite side walls of the sliding block (41), a sleeve (46) is rotatably sleeved on the outer peripheral surface of the rotating connecting rod (45), and the two sleeves (46) are arranged at intervals along the axial direction of the rotating connecting rod (45), and the sleeves (46) are rotationally connected to the connecting plate (37), a second bevel gear (47) is arranged on one of the opposite end surfaces of the two sleeves (46), and a third bevel gear (50) is arranged on the outer peripheral surface of the rotating connecting rod (45), and the first bevel gear (44) is meshed with the second bevel gear (47) and the third bevel gear (50) at the same time.

5. The automatic welding device for automobile interior decoration parts processing according to claim 4 is characterized in that: The outer circumferential surfaces of the two sleeves (46) are fixedly provided with first swing rods (48), and the second roller (61) is rotatably connected to the two first swing rods (48). Second swing rods (49) are arranged at intervals along the axial direction on the outer circumferential surface of the rotating connecting rod (45), and the first roller (60) is rotatably connected to the opposite side walls of the two second swing rods (49).

6. The automatic welding device for processing automobile interior decoration parts according to claim 5, characterized in that: The cleaning assembly comprises: a cleaning seat (54), a plurality of fixed support plates (51) and a self-rotating roller (53); the cleaning seat (54) is arranged on the top of the support seat (30); the cleaning seat (54) is also provided with a second concave cavity; the opening of the second concave cavity is in the same direction as the opening of the concave cavity of the support seat (30); and the plurality of fixed support plates (51) are arranged on opposite side walls in the second concave cavity.

7. The automatic welding device for processing automobile interior decoration parts according to claim 6, characterized in that: The bottom of the fixed support plate (51) is provided with a first telescopic rod (52), a self-rotating roller (53) is provided at the bottom end of the first telescopic rod (52), and the self-rotating roller (53) is provided along the length direction of the second concave cavity, and a group of second telescopic rods (55) are respectively provided on opposite side walls inside the concave cavity of the support seat (30), and a group of second telescopic rods (55) has two, and a scraper (56) is provided on the end surface of each group of second telescopic rods (55), and the scraper (56) is used to scrape off dust and impurities adhering to the first rotating roller (60) and the second rotating roller (61).

8. The automatic welding device for processing automobile interior parts according to claim 7, characterized in that: Two collecting grooves (58) are provided on the bottom wall of the inner cavity of the support seat (30), and collecting holes (59) are provided inside the collecting grooves (58) at intervals along the length direction.

9. The automatic welding device for processing automobile interior decoration parts according to claim 1, characterized in that: A welding platform (11) is arranged on the top of the frame (10), a lower support plate (12) is arranged on the top of the welding platform (11), a first extension rod (70) is arranged on the bottom of the machine head (20), a pressing plate (71) is arranged on the bottom of the first extension rod (70), and the first extension rod (70) can push the pressing plate (71) to move up and down.

10. The automatic welding device for automobile interior trim processing according to claim 1, characterized in that: A protection box (80) is provided on an outer wall of one side of the support seat (30), a second extension rod (81) is provided inside the protection box (80), and an output end of the second extension rod (81) is connected to the rear support plate (33) so that the second extension rod (81) pushes the sliding bracket to slide.

Images