Automatic welding device and method for automobile front bumper beam

Abstract

The present invention belongs to the technical field of automobile beam welding, and specifically discloses an automatic welding device and method for automobile front bumper beams, comprising a base, the upper end of the base is fixedly connected to a support seat, the upper end of the support seat is provided with a positioning mechanism, the upper end of the positioning mechanism is provided with a limiting mechanism, the upper end of the base is fixedly connected to a mounting frame near the rear side of the support seat, the front end of the mounting frame is provided with a welder, and the lower end of the base is fixedly connected to a supporting leg. The present invention can automatically drive the automobile front bumper beam to move upward steadily and obliquely through the cooperation between the positioning mechanism and the limiting mechanism, and the automobile front bumper beam is fully limited, thereby improving the stability of the moving welding of the automobile front bumper beam, and the entire device is relatively simple to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile cross beam welding, and specifically discloses an automatic welding device and method for an automobile front bumper cross beam. Background Art

[0002] With the increasing improvement of industrial level, cars have gradually entered thousands of households. More and more families will choose to drive when traveling, and driving means the accompanying risks. In traffic accidents, the better the anti-collision performance of the car is, the greater the protection of personnel safety can be. In the process of frontal collision of the car, the safety performance of the front structure of the car is particularly important. The front bumper beam of the car is set at the front end of the car, and its safety performance plays a vital role in the safety performance of the front structure of the car. When producing the beam, some parts need to be welded to the beam;

[0003] In the previous automobile front bumper beam welding device, in the current welding process, generally a corresponding type of clamping tooling is selected to fix the automobile front bumper beam, and then the welding operation is performed. However, during the welding process of the automobile front bumper beam, the position of the automobile front bumper beam needs to be adjusted. The front bumper beam of some automobiles has an inclined structure, and the automobile front bumper beam needs to be moved obliquely upward to facilitate welding of the automobile front bumper beam. Currently, the position of the automobile front bumper beam is adjusted mainly by manual operation, but the beam is heavy and too difficult to carry, and it is not easy to clamp after carrying, resulting in low operation efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automatic welding device and method for a front bumper beam of an automobile.

[0005] In order to achieve the above purpose, the present invention provides an automatic welding device for a front bumper beam of an automobile, comprising a base, the upper end of the base is fixedly connected to a support base, the upper end of the support base is provided with a positioning mechanism, the upper end of the positioning mechanism is provided with a limiting mechanism, the upper end of the base is fixedly connected to a mounting frame near the rear side of the support base, a welder is installed at the front end of the mounting frame, and the lower end of the base is fixedly connected to a support leg.

[0006] In the above technical scheme, preferably, the positioning mechanism includes a platform fixedly connected to the upper end of the support seat, the upper end of the platform is fixedly connected to a support block, the lower end of the platform is fixedly connected to a control bin near the front side of the support seat, a sliding groove is provided at the front end of the control bin, the upper end of the platform is slidably connected to a placement table near the rear side of the support block, the front end of the placement table is fixedly connected to a connecting plate, the rear end of the connecting plate is provided with an inclined groove near the upper side of the placement table, the upper end of the connecting plate is fixedly connected to a docking plate, the upper end of the support block is provided with a stabilizing portion, the inner side of the inclined groove is slidably connected to a limiting rod, and the inner side of the placement table is movably connected to a roller via a rotating shaft.

[0007] In the above technical solution, preferably, the inner top of the control bin is fixedly connected to a support member, the inner side of the support member is movably connected to a threaded shaft, the outer side of the threaded shaft is threadedly connected to an adjustment ring on one side close to the support member, the inner side of the slide groove is slidably connected to a linkage frame, the outer side of the threaded shaft is installed with a linkage on the other side close to the support member, the lower end of the control bin is fixedly connected to a main base plate, and the upper end of the main base plate is fixedly connected to a large motor on one side close to the control bin.

[0008] In the above technical scheme, preferably, one end of the stabilizing part is fixedly connected with a slide plate, the rear end of the supporting block is fixedly connected with a fixing frame, the inner side of the fixing frame is slidably connected with a telescopic rod, the rear end of the telescopic rod is fixedly connected with a contact head, the upper end of the placing table is fixedly connected with a limiting plate, the front end of the limiting rod is fixedly connected to the rear end of the supporting block close to the fixed frame, one end of the threaded shaft is installed at one end of the large motor, the rear end of the slide plate is slidably connected to the front end of the telescopic rod, the rear end surface of the slide plate and the front end surface of the telescopic rod are both sloped surfaces, and the main body material of the contact head is rubber.

[0009] In the above technical solution, preferably, the stabilizing part includes a slider installed on the upper end of the supporting block, a mobile bin is installed on the upper end of the slider, a slot is opened on the inner wall of the mobile bin, the inner side of the mobile bin is slidably connected with a resistance wheel, a plurality of groups of rubber blocks are distributed on the outer side of the resistance wheel, a damping sliding connection is formed between the resistance wheel and the slot through the rubber blocks, a sliding rod is fixedly connected to the front end of the docking plate, a movable block is movably connected to the inner side of the sliding rod, and a rotating block is fixedly connected to the front end of the resistance wheel.

[0010] In the above technical solution, preferably, the outer side of the rotating block is movably connected to a docking frame, the front end of the docking frame is fixedly connected to a connecting block, the front end of the mobile warehouse is fixedly connected to a slide rail, the outer side of the slide rail is slidably connected to a slide frame, the front end of the movable block is fixedly connected to the rear end of the resistance wheel, the front end of the connecting block is fixedly connected to the rear end of the slide frame, and the upper end of the mobile warehouse is fixedly connected to the lower end of the linkage frame.

[0011] In the above technical scheme, preferably, the limiting mechanism includes a support frame fixedly connected to the upper end of the linkage frame, a movable groove is opened at the upper end of the support frame, a limiting rod is slidably connected inside the support frame, the upper end of the limiting rod is fixedly connected to an adjusting frame, a control groove is opened at one end of the adjusting frame, the inner side of the control groove is dampingly slidably connected with a regulating block, the inner side of the adjusting frame is movably connected to a main pulley, the outer side of the main pulley is transmission-connected with a belt, the lower end of the belt is fixedly connected to a secondary pulley, the front end of the secondary pulley is movably connected to a support plate through a rotating shaft, and the lower end of the belt is fixedly connected to a fixed plate near the front side of the secondary pulley.

[0012] In the above technical scheme, preferably, the lower end of the limiting rod is fixedly connected to a pressure plate, the inner side of the adjusting frame is fixedly connected to a control frame near the rear side of the main pulley, the inner side of the control frame is slidably connected to a sliding rod, the outer side of the sliding rod is sleeved with a spring near the lower side of the control frame, one end of the support frame is fixedly connected to a sub-base plate, the upper end of the sub-base plate is fixedly connected to a small motor, the upper end of the support frame is fixedly connected to a bracket near the front side of the movable groove, the belt passes through the movable groove, and the main pulley is connected to the regulating block through a rotating shaft.

[0013] In the above technical scheme, preferably, there are multiple groups of main pulleys, the belt is wound around the outside of the secondary pulley, and the secondary pulley is installed at one end of the small motor through a rotating shaft, the lower end of the support plate is fixedly connected to the upper end of the support frame near the rear side of the movable groove, the rear end of the fixed plate is fixedly connected to the front end of the pressure plate, the lower end of the pressure plate is inlaid with a rubber strip, the upper end of the spring is fixedly connected to the lower end of the control frame, the lower end of the slide rod is fixedly connected to the upper end of the support frame near the side of the support plate, the lower end of the spring is fixedly connected to the upper end of the support frame near the outer side of the slide rod, and one group of the main pulleys is installed on the inner side of the bracket through a rotating shaft.

[0014] A method for automatically welding a front bumper beam of an automobile is also provided, which is used to operate an automatic welding device for a front bumper beam of an automobile, and comprises the following steps:

[0015] S1: First, the large motor drives the threaded shaft to rotate, so that the adjusting ring drives the linkage frame to move, and the docking plate moves accordingly, so that the connecting plate moves along the limit rod through the inclined slot, so as to drive the placement table to move obliquely upward, and then the front bumper beam of the car moves obliquely upward, so as to realize the automatic adjustment of the welding position of the front bumper beam of the car;

[0016] S2: Secondly, the sliding rod is driven to move by the docking plate, so that the mobile bin moves to one side, and the sliding rod drives the resistance wheel to move upward inside the mobile bin, so that the resistance wheel generates a damping force between the slot and the mobile bin, so that the sliding rod moves slowly, and then the docking plate moves slowly, so that the placement table is subject to resistance when it moves obliquely upward, so that the placement table moves obliquely upward steadily and slowly;

[0017] S3: Finally, by starting the small motor, the secondary pulley is wound with the belt, so that the belt pulls the pressure plate upward, and the adjustment frame stretches the spring through the control frame, so as to facilitate the downward adjustment of the pressure plate, and then the pressure plate moves with the inclination of the front bumper beam of the car, ensuring that the pressure plate always stably fits on the surface of the front bumper beam of the car.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By driving the threaded shaft to rotate through a large motor, the adjusting ring drives the linkage frame to move, and the docking plate follows the movement, so that the connecting plate moves along the limit rod through the inclined groove, thereby driving the placement table to move obliquely upward, and then the front bumper beam of the automobile moves obliquely upward, thereby realizing automatic adjustment of the welding position of the front bumper beam of the automobile.

[0020] When the front bumper beam of the automobile moves, the front bumper beam of the automobile contacts the roller, and then the roller rolls, so that the friction between the front bumper beam of the automobile and the placement platform can be reduced.

[0021] By driving the sliding rod to move through the docking plate, the mobile bin moves to one side, and the sliding rod drives the resistance wheel to move upward inside the mobile bin, so that the resistance wheel generates a damping force between the slot and the mobile bin, which can facilitate the slow movement of the sliding rod, and then the docking plate moves slowly, so that the placement table is subject to resistance when it moves obliquely upward, thereby allowing the placement table to move obliquely upward smoothly and slowly.

[0022] By starting the small motor, the secondary pulley is wound with the belt, which pulls the pressure plate upward, and the adjustment frame stretches the spring through the control frame, so as to facilitate the adjustment of the downward pressure of the pressure plate, and then the pressure plate moves along with the inclination of the front bumper beam of the car, thereby ensuring that the pressure plate always stably fits the surface of the front bumper beam of the car.

[0023] When the pressure plate moves following the inclination of the front bumper beam of the automobile, the mobile bin drives the slide plate to move, which in turn pushes the telescopic rod to move, so that the telescopic rod always fits the front bumper beam of the automobile. At the same time, the resistance wheel generates a damping force between the slot and the mobile bin, so that the placement table drives the front bumper beam of the automobile to move upward steadily and slowly, thereby limiting the front bumper beam of the automobile in all directions when it moves upward. At the same time, the steady and slow upward movement of the front bumper beam of the automobile can improve the stability of the mobile welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an automatic welding device for a front bumper beam of an automobile proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the positioning mechanism structure of an automatic welding device for a front bumper beam of an automobile proposed by the present invention;

[0026] Figure 3 A schematic diagram of the local structure of the positioning mechanism of the automatic welding device for the front bumper beam of an automobile proposed by the present invention Figure 1 ;

[0027] Figure 4 A schematic diagram of the local structure of the positioning mechanism of the automatic welding device for the front bumper beam of an automobile proposed by the present invention Figure 2 ;

[0028] Figure 5 A schematic diagram of the local structure of the positioning mechanism of the automatic welding device for the front bumper beam of an automobile proposed by the present invention Figure 3 ;

[0029] Figure 6 A schematic diagram of the local structure of the positioning mechanism of the automatic welding device for the front bumper beam of an automobile proposed by the present invention Figure 4 ;

[0030] Figure 7 This is a schematic structural diagram of the stabilizing part of a positioning mechanism of an automatic welding device for a front bumper beam of an automobile proposed by the present invention;

[0031] Figure 8 The schematic diagram of the local structure of the stabilizing part of the positioning mechanism of the automatic welding device for the front bumper beam of an automobile proposed by the present invention Figure 1 ;

[0032] Fig. 9 The schematic diagram of the local structure of the stabilizing part of the positioning mechanism of the automatic welding device for the front bumper beam of an automobile proposed by the present invention Figure 2 ;

[0033] Fig.10 This is a schematic diagram of the limiting mechanism structure of an automatic welding device for a front bumper beam of an automobile proposed by the present invention;

[0034] Fig.11 The present invention is a schematic diagram of the partial structure of a limiting mechanism of an automatic welding device for a front bumper beam of an automobile proposed by the present invention.

[0035] In the figure: 1, base; 2, support seat; 3, mounting frame; 4, welding device; 5, supporting leg; 6, positioning mechanism; 61, platform; 62, supporting block; 63, control compartment; 64, slide; 65, placing table; 66, connecting plate; 67, docking plate; 68, stabilizing part; 681, slider; 682, connecting block; 683, moving compartment; 684, slot; 685, resistance wheel; 686, sliding rod; 687, movable block; 688, rotating block; 689, docking frame; 6810, slide rail; 6811, slide; 69, inclined slot; 610, limit rod; 611, roller; 612, support member; 613, threaded shaft ; 614, adjusting ring; 615, linkage frame; 616, linkage; 617, main base plate; 618, large motor; 619, slide plate; 620, fixed frame; 621, telescopic rod; 622, contact head; 623, limit plate; 7, limiting mechanism; 71, support frame; 72, movable groove; 73, limiting rod; 74, adjusting frame; 75, control groove; 76, regulating block; 77, main pulley; 78, belt; 79, secondary pulley; 710, support plate; 711, fixed plate; 712, pressure plate; 713, control frame; 714, slide bar; 715, spring; 716, secondary base plate; 717, small motor; 718, bracket. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] like Figure 1-Figure 11 An automatic welding device for a front bumper beam of an automobile is shown, comprising a base 1, the upper end of the base 1 is fixedly connected to a support base 2, the upper end of the support base 2 is provided with a positioning mechanism 6, the upper end of the positioning mechanism 6 is provided with a limiting mechanism 7, the upper end of the base 1 is fixedly connected to a mounting frame 3 near the rear side of the support base 2, a welder 4 is installed at the front end of the mounting frame 3, and the lower end of the base 1 is fixedly connected to a supporting leg 5.

[0039] The positioning mechanism 6 includes a platform 61 fixedly connected to the upper end of the support seat 2, the upper end of the platform 61 is fixedly connected to a support block 62, the lower end of the platform 61 is fixedly connected to a control bin 63 near the front side of the support seat 2, a slide groove 64 is provided at the front end of the control bin 63, the upper end of the platform 61 is slidably connected to a placement table 65 near the rear side of the support block 62, the front end of the placement table 65 is fixedly connected to a connecting plate 66, and the rear end of the connecting plate 66 is provided with an inclined groove 69 near the upper side of the placement table 65. The upper end of the connecting plate 66 is fixedly connected with a docking plate 67, the upper end of the support block 62 is provided with a stabilizing portion 68, the inner side of the inclined groove 69 is slidably connected with a limit rod 610, the inner side of the placing table 65 is movably connected with a roller 611 through a rotating shaft, the inner top of the control compartment 63 is fixedly connected with a support member 612, the inner side of the support member 612 is movably connected with a threaded shaft 613, the outer side of the threaded shaft 613 is threadedly connected with an adjusting ring 614 on the side close to the support member 612, and the inner side of the slide groove 64 is movably connected with a roller 611. The inner side is slidably connected with a linkage frame 615, the outer side of the threaded shaft 613 is provided with a linkage 616 on the other side close to the support member 612, the lower end of the control chamber 63 is fixedly connected with a main bottom plate 617, the upper end of the main bottom plate 617 is fixedly connected with a large motor 618 on the side close to the control chamber 63, one end of the stabilizing portion 68 is fixedly connected with a slide plate 619, the rear end of the support block 62 is fixedly connected with a fixed frame 620, the inner side of the fixed frame 620 is slidably connected with a telescopic rod 621, and the telescopic rod 621 is fixedly connected with the inner side of the fixed frame 620. The rear end of the rod 621 is fixedly connected to a contact head 622, the upper end of the placement table 65 is fixedly connected to a limiting plate 623, the front end of the limiting rod 610 is fixedly connected to the rear end of the support block 62 close to the fixed frame 620, one end of the threaded shaft 613 is installed at one end of the large motor 618, the rear end of the slide plate 619 is slidably connected to the front end of the telescopic rod 621, the rear end surface of the slide plate 619 and the front end surface of the telescopic rod 621 are both sloped surfaces, and the main body material of the contact head 622 is rubber.

[0040] When in use, firstly, an inclined groove 69 is opened at the front end of the connecting plate 66 according to the inclination of the front guard beam of the automobile, and then the contact head 622 is pushed to make the telescopic rod 621 retract inward, and then the front guard beam of the automobile is placed on the placement table 65, and then the contact head 622 is released, so that the telescopic rod 621 pushes the contact head 622 to move outward, and the contact head 622 contacts the front guard beam of the automobile, and then the large motor 618 is started, so that the large motor 618 drives the threaded shaft 613 to rotate, and the adjusting ring 614 drives the linkage frame 615 to move, and then the linkage frame 615 drives the docking plate 67 to move, so that the docking plate 67 drives the connecting plate 66 to move, so that The connecting plate 66 slides along the limit rod 610 through the inclined groove 69, so that the connecting plate 66 moves obliquely upward, so that the placement table 65 drives the front bumper beam of the automobile to move, and under the action of the roller 611, the friction between the front bumper beam of the automobile and the placement table 65 is reduced. The large motor 618 drives the threaded shaft 613 to rotate, so that the adjustment ring 614 drives the linkage frame 615 to move, and the docking plate 67 moves with it, so that the connecting plate 66 moves along the limit rod 610 through the inclined groove 69, which can achieve the purpose of driving the placement table 65 to move obliquely upward, and then the front bumper beam of the automobile moves obliquely upward, thereby realizing automatic adjustment of the welding position of the front bumper beam of the automobile.

[0041] The stabilizing portion 68 includes a slider 681 mounted on the upper end of the supporting block 62, a movable bin 683 is mounted on the upper end of the slider 681, a slot 684 is provided on the inner wall of the movable bin 683, a resistance wheel 685 is slidably connected to the inner side of the movable bin 683, a plurality of groups of rubber blocks are distributed on the outer side of the resistance wheel 685, and the resistance wheel 685 forms a damping sliding connection with the slot 684 through the rubber blocks, a sliding rod 686 is fixedly connected to the front end of the docking plate 67, and a movable block 687 is movably connected to the inner side of the sliding rod 686, and the resistance wheel 685 is slidably connected to the inner side of the movable bin 683. The front end of the wheel 685 is fixedly connected to a rotating block 688, the outer side of the rotating block 688 is movably connected to a docking frame 689, the front end of the docking frame 689 is fixedly connected to a connecting block 682, the front end of the mobile warehouse 683 is fixedly connected to a slide rail 6810, the outer side of the slide rail 6810 is slidably connected to a slide frame 6811, the front end of the movable block 687 is fixedly connected to the rear end of the resistance wheel 685, the front end of the connecting block 682 is fixedly connected to the rear end of the slide frame 6811, and the upper end of the mobile warehouse 683 is fixedly connected to the lower end of the linkage frame 615.

[0042] At this time, the docking plate 67 drives the mobile bin 683 to move through the sliding rod 686, and the sliding rod 686 moves upward inside the mobile bin 683. At the same time, the sliding rod 686 drives the resistance wheel 685 through the movable block 687, and the resistance wheel 685 forms a damping force with the mobile bin 683 through the slot 684, so that the resistance wheel 685 moves smoothly upward inside the mobile bin 683. The resistance wheel 685 drives the docking frame 689 to move upward through the rotating block 688, and the connecting block 682 drives the slide 6811 to slide along the slide rail 6810, so that the placement table 65 When moving diagonally upward, it encounters resistance, so that the placement table 65 moves diagonally upward smoothly and slowly, and the sliding rod 686 is driven by the docking plate 67 to move, so that the mobile bin 683 moves to one side, and the sliding rod 686 drives the resistance wheel 685 to move upward inside the mobile bin 683, so that the resistance wheel 685 generates a damping force between the slot 684 and the mobile bin 683, which can achieve the purpose of facilitating the slow movement of the sliding rod 686, and then the docking plate 67 moves slowly, so that the placement table 65 encounters resistance when moving diagonally upward, so that the placement table 65 moves diagonally upward smoothly and slowly.

[0043] The limiting mechanism 7 includes a support frame 71 fixedly connected to the upper end of the linkage frame 615, a movable groove 72 is provided at the upper end of the support frame 71, a limiting rod 73 is slidably connected inside the support frame 71, an adjusting frame 74 is fixedly connected to the upper end of the limiting rod 73, a control groove 75 is provided at one end of the adjusting frame 74, a regulating block 76 is connected to the inner side of the control groove 75 in a damping sliding manner, a main pulley 77 is movably connected to the inner side of the adjusting frame 74, a belt 78 is connected to the outer side of the main pulley 77, and the lower end of the belt 78 is connected to the lower end of the belt 78. A secondary pulley 79 is fixedly connected, and a support plate 710 is movably connected to the front end of the secondary pulley 79 through a rotating shaft. A fixed plate 711 is fixedly connected to the lower end of the belt 78 near the front side of the secondary pulley 79. A pressure plate 712 is fixedly connected to the lower end of the limiting rod 73. A control frame 713 is fixedly connected to the inner side of the adjustment frame 74 near the rear side of the main pulley 77. A slide bar 714 is slidably connected to the inner side of the control frame 713. A spring 715 is sleeved on the outer side of the slide bar 714 near the lower side of the control frame 713. 1 is fixedly connected to a sub-bottom plate 716, and a small motor 717 is fixedly connected to the upper end of the sub-bottom plate 716. A bracket 718 is fixedly connected to the front side of the upper end of the support frame 71 near the movable groove 72. The belt 78 passes through the movable groove 72. The main pulley 77 is connected to the regulating block 76 through a rotating shaft. There are multiple groups of main pulleys 77. The belt 78 is wound around the outside of the sub-pulley 79. The sub-pulley 79 is installed at one end of the small motor 717 through a rotating shaft. The lower end of the support plate 710 is close to the upper end of the support frame 71. The rear side of the movable groove 72 is fixedly connected, the rear end of the fixed plate 711 is fixedly connected to the front end of the pressure plate 712, the lower end of the pressure plate 712 is inlaid with a rubber strip, the upper end of the spring 715 is fixedly connected to the lower end of the control frame 713, the lower end of the slide bar 714 is fixedly connected to the upper end of the support frame 71 near the support plate 710, the lower end of the spring 715 is fixedly connected to the upper end of the support frame 71 near the outer side of the slide bar 714, and one set of main pulleys 77 is installed on the inner side of the bracket 718 through a rotating shaft.

[0044] At the same time, starting the small motor 717 causes the secondary pulley 79 to rotate and causes the secondary pulley 79 to transport the wound belt 78 outward. At the same time, under the elastic action of the spring 715, the spring 715 contracts inward, and the spring 715 pulls the adjustment frame 74 downward through the control frame 713, so that the limiting rod 73 drives the pressure plate 712 to move downward, and the pressure plate 712 contacts the front guard beam of the automobile, thereby pressing down and clamping the front guard beam of the automobile, and then starting the small motor 717 to flip, so that the secondary pulley 79 winds the belt 78, and the belt 78 drives the main pulley 77 to rotate, so that the belt 78 pulls the pressure plate 712 to pass through the fixed plate 711 The adjusting frame 74 stretches the spring 715 through the control frame 713, so that the pressure plate 712 moves along with the inclination of the front bumper beam of the automobile, thereby ensuring that the pressure plate 712 always stably fits the surface of the front bumper beam of the automobile, and by starting the small motor 717, the secondary pulley 79 is wound around the belt 78, so that the belt 78 pulls the pressure plate 712 to move upward, and the adjusting frame 74 stretches the spring 715 through the control frame 713, so as to facilitate the adjustment of the pressure plate 712 to be pressed downward, thereby making the pressure plate 712 move along with the inclination of the front bumper beam of the automobile, thereby ensuring that the pressure plate 712 always stably fits the surface of the front bumper beam of the automobile.

[0045] A method for automatically welding a front bumper beam of an automobile is also provided, which is used to operate an automatic welding device for a front bumper beam of an automobile, and comprises the following steps:

[0046] S1: First, the large motor 618 drives the threaded shaft 613 to rotate, so that the adjusting ring 614 drives the linkage frame 615 to move, and the docking plate 67 moves accordingly, so that the connecting plate 66 moves along the limit rod 610 through the inclined slot 69, so as to drive the placement table 65 to move obliquely upward, and then the front bumper beam of the automobile moves obliquely upward, so as to realize the automatic adjustment of the welding position of the front bumper beam of the automobile;

[0047] S2: Secondly, the sliding rod 686 is driven to move by the docking plate 67, so that the mobile bin 683 moves to one side, and the sliding rod 686 drives the resistance wheel 685 to move upward inside the mobile bin 683, so that the resistance wheel 685 generates a damping force between the slot 684 and the mobile bin 683, so that the sliding rod 686 moves slowly, and then the docking plate 67 moves slowly, so that the placement table 65 is resisted when it moves obliquely upward, so that the placement table 65 moves obliquely upward steadily and slowly;

[0048] S3: Finally, by starting the small motor 717, the secondary pulley 79 is wound around the belt 78, so that the belt 78 pulls the pressure plate 712 to move upward, and the adjustment frame 74 stretches the spring 715 through the control frame 713, so as to facilitate the adjustment of the pressure plate 712 to press down, and then the pressure plate 712 moves along with the inclination of the front bumper beam of the automobile, ensuring that the pressure plate 712 is always stably attached to the surface of the front bumper beam of the automobile.

[0049] Working principle: When in use, the worker first opens the inclined groove 69 at the front end of the connecting plate 66 according to the inclination of the front guard beam of the car, and then pushes the contact head 622 to make the telescopic rod 621 retract inward, and then puts the front guard beam of the car on the placement table 65, and then releases the contact head 622, so that the telescopic rod 621 pushes the contact head 622 to move outward, and makes the contact head 622 contact the front guard beam of the car, and starts the small motor 717 to rotate the secondary pulley 79, and the secondary pulley 79 transports the wound belt 78 outward. At the same time, under the elastic action of the spring 715, the spring 715 is retracted inward, and the spring 715 pulls the adjustment frame 74 downward through the control frame 713, so that the limiting rod 73 drives the pressure plate 712 to move downward, and The pressing plate 712 is made to contact the front guard beam of the automobile, thereby pressing down and clamping the front guard beam of the automobile, and then the welding device 4 is started to move the welding device 4 downward to weld the front guard beam of the automobile, and then the large motor 618 is started to drive the threaded shaft 613 to rotate, and the adjusting ring 614 drives the linkage frame 615 to move, and then the linkage frame 615 drives the moving bin 683 to move, and the moving bin 683 drives the docking plate 67 to move through the sliding rod 686, so that the docking plate 67 drives the connecting plate 66 to move, so that the connecting plate 66 slides along the limit rod 610 through the inclined groove 69, so that the connecting plate 66 moves obliquely upward, so that the placing table 65 drives the front guard beam of the automobile to move, and under the action of the roller 611, the front guard beam of the automobile and the contact between the roller 611 and the connecting plate 66 are reduced. The friction between the placement table 65 drives the threaded shaft 613 to rotate through the large motor 618, so that the adjusting ring 614 drives the linkage frame 615 to move, and the docking plate 67 moves accordingly, so that the connecting plate 66 moves along the limit rod 610 through the inclined slot 69, which can achieve the purpose of driving the placement table 65 to move obliquely upward, and then the front guard beam of the automobile moves obliquely upward, so as to realize the automatic adjustment of the welding position of the front guard beam of the automobile. Secondly, when the front guard beam of the automobile moves, the front guard beam of the automobile contacts the roller 611, and then the roller 611 rolls, which can reduce the friction between the front guard beam of the automobile and the placement table 65. At the same time, the docking plate 67 drives the moving bin 683 to move through the sliding rod 686, and the sliding rod 686 is moved in the moving bin 6 83, and at the same time, the sliding rod 686 drives the resistance wheel 685 through the movable block 687, and the resistance wheel 685 forms a damping force with the movable bin 683 through the slot 684, so that the resistance wheel 685 moves smoothly upward on the inner side of the movable bin 683, and the resistance wheel 685 drives the docking frame 689 to move upward through the rotating block 688, and the connecting block 682 drives the slide 6811 to slide along the slide rail 6810, so that the placement table 65 is subjected to resistance when it moves obliquely upward, so that the placement table 65 moves obliquely upward smoothly and slowly, and drives the sliding rod 686 to move through the docking plate 67, so that the movable bin 683 moves to one side, and the sliding rod 686 drives the resistance wheel 685 to move upward on the inner side of the movable bin 683.The resistance wheel 685 generates a damping force between the slot 684 and the movable bin 683, so as to achieve the purpose of facilitating the slow movement of the sliding rod 686, and then the docking plate 67 moves slowly, so that the placement table 65 is subjected to resistance when it moves obliquely upward, so that the placement table 65 moves smoothly and slowly obliquely upward, and at the same time, the small motor 717 is started to flip, so that the secondary pulley 79 is wound with the belt 78, and the belt 78 drives the main pulley 77 to rotate, so that the belt 78 passes through the fixed plate 711 to pull the pressure plate 712 to move upward, and the adjusting frame 74 passes through the control frame 713 to stretch the spring 715, so that the pressure plate 712 moves with the inclination of the front guard beam of the automobile, thereby ensuring that the pressure plate 712 is always stably attached to the surface of the front guard beam of the automobile, and by starting the small motor 717, the secondary pulley 79 is wound with the belt 78, so that the belt 78 pulls the pressure plate 712 By moving the adjusting frame 74 upward and stretching the spring 715 through the control frame 713, the purpose of adjusting the downward pressure of the pressing plate 712 can be achieved, so that the pressing plate 712 moves along with the tilt of the front bumper beam of the automobile, thereby ensuring that the pressing plate 712 always stably fits the surface of the front bumper beam of the automobile, and when the pressing plate 712 moves along with the tilt of the front bumper beam of the automobile, the moving bin 683 drives the slide plate 619 to move, so that the slide plate 619 pushes the telescopic rod 621 to move, so that the telescopic rod 621 always fits the front bumper beam of the automobile, and at the same time, the resistance wheel 685 generates a damping force between the slot 684 and the moving bin 683, so that the placing platform 65 drives the front bumper beam of the automobile to move upward steadily and slowly, thereby making the front bumper beam of the automobile fully limited when moving upward, and at the same time, the stability of the mobile welding can be improved by coordinating with the steady and slow upward movement of the front bumper beam of the automobile.

[0050] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be connected directly or indirectly through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the description of this specification, if the terms "one embodiment", "some embodiments", "specific embodiments" and the like appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic welding device for a front bumper beam of an automobile, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a support base (2), a positioning mechanism (6) is provided at the upper end of the support base (2), a limiting mechanism (7) is provided at the upper end of the positioning mechanism (6), a mounting frame (3) is fixedly connected to the upper end of the base (1) near the rear side of the support base (2), a welder (4) is installed at the front end of the mounting frame (3), and a supporting leg (5) is fixedly connected to the lower end of the base (1); The positioning mechanism (6) comprises a platform (61) fixedly connected to the upper end of the support seat (2), the upper end of the platform (61) is fixedly connected to a support block (62), the lower end of the platform (61) is fixedly connected to a control bin (63) near the front side of the support seat (2), the front end of the control bin (63) is provided with a slide groove (64), the upper end of the platform (61) is slidably connected to a placement table (65) near the rear side of the support block (62), the front end of the placement table (65) is fixedly connected to a connecting plate (66), the rear end of the connecting plate (66) is provided with an inclined groove (69) near the upper side of the placement table (65), the upper end of the connecting plate (66) is fixedly connected to a docking plate (67), the upper end of the support block (62) is provided with a stabilizing portion (68), the inner side of the inclined groove (69) is slidably connected to a limiting rod (610), and the inner side of the placement table (65) is movably connected to a roller (611) via a rotating shaft; The top of the inner side of the control chamber (63) is fixedly connected to a support member (612), the inner side of the support member (612) is movably connected to a threaded shaft (613), the outer side of the threaded shaft (613) close to the support member (612) is threadedly connected to an adjustment ring (614), the inner side of the slide groove (64) is slidably connected to a linkage frame (615), the outer side of the threaded shaft (613) close to the support member (612) is equipped with a linkage (616), the lower end of the control chamber (63) is fixedly connected to a main bottom plate (617), and the upper end of the main bottom plate (617) close to the control chamber (63) is fixedly connected to a large motor (618); One end of the stabilizing portion (68) is fixedly connected to a slide plate (619), the rear end of the support block (62) is fixedly connected to a fixing frame (620), the inner side of the fixing frame (620) is slidably connected to a telescopic rod (621), the rear end of the telescopic rod (621) is fixedly connected to a contact head (622), the upper end of the placement table (65) is fixedly connected to a limiting plate (623), the front end of the limiting rod (610) is fixedly connected to the rear end of the support block (62) close to the fixing frame (620), one end of the threaded shaft (613) is mounted at one end of the large motor (618), the rear end of the slide plate (619) is slidably connected to the front end of the telescopic rod (621), the rear end surface of the slide plate (619) and the front end surface of the telescopic rod (621) are both sloped surfaces, and the main body material of the contact head (622) is rubber; The stabilizing portion (68) comprises a slider (681) mounted on the upper end of the supporting block (62); a movable bin (683) is mounted on the upper end of the slider (681); a slot (684) is provided on the inner wall of the movable bin (683); a resistance wheel (685) is slidably connected to the inner side of the movable bin (683); a plurality of groups of rubber blocks are distributed on the outer side of the resistance wheel (685); a damping sliding connection is formed between the resistance wheel (685) and the slot (684) through the rubber blocks; a sliding rod (686) is fixedly connected to the front end of the docking plate (67); a movable block (687) is movably connected to the inner side of the sliding rod (686); and a rotating block (688) is fixedly connected to the front end of the resistance wheel (685); The outer side of the rotating block (688) is movably connected to a docking frame (689), the front end of the docking frame (689) is fixedly connected to a connecting block (682), the front end of the movable bin (683) is fixedly connected to a slide rail (6810), the outer side of the slide rail (6810) is slidably connected to a slide frame (6811), the front end of the movable block (687) is fixedly connected to the rear end of the resistance wheel (685), the front end of the connecting block (682) is fixedly connected to the rear end of the slide frame (6811), and the upper end of the movable bin (683) is fixedly connected to the lower end of the linkage frame (615).

2. The automatic welding device for front bumper beam of an automobile according to claim 1, characterized in that: The limiting mechanism (7) comprises a support frame (71) fixedly connected to the upper end of the linkage frame (615), a movable groove (72) being provided at the upper end of the support frame (71), a limiting rod (73) being slidably connected inside the support frame (71), an adjusting frame (74) being fixedly connected at the upper end of the limiting rod (73), a control groove (75) being provided at one end of the adjusting frame (74), a regulating block (76) being dampingly slidably connected inside the control groove (75), a main pulley (77) being movably connected inside the adjusting frame (74), a belt (78) being transmission-connected outside the main pulley (77), a secondary pulley (79) being fixedly connected at the lower end of the belt (78), a support plate (710) being movably connected at the front end of the secondary pulley (79) via a rotating shaft, and a fixing plate (711) being fixedly connected at the lower end of the belt (78) near the front side of the secondary pulley (79).

3. The automatic welding device for front bumper beam of an automobile according to claim 2, characterized in that: The lower end of the limiting rod (73) is fixedly connected to a pressing plate (712); the inner side of the adjusting frame (74) is fixedly connected to a control frame (713) near the rear side of the main pulley (77); the inner side of the control frame (713) is slidably connected to a sliding rod (714); the outer side of the sliding rod (714) is sleeved with a spring (715) near the lower side of the control frame (713); one end of the supporting frame (71) is fixedly connected to a secondary bottom plate (716); the upper end of the secondary bottom plate (716) is fixedly connected to a small motor (717); the upper end of the supporting frame (71) is fixedly connected to a bracket (718) near the front side of the movable groove (72); the belt (78) passes through the movable groove (72); and the main pulley (77) is connected to the regulating block (76) via a rotating shaft.

4. The automatic welding device for front bumper beam of an automobile according to claim 3 is characterized in that: There are multiple groups of main pulleys (77); the belt (78) is wound around the outside of the secondary pulley (79); the secondary pulley (79) is mounted at one end of the small motor (717) via a rotating shaft; the lower end of the support plate (710) is fixedly connected to the rear side of the upper end of the support frame (71) near the movable groove (72); the rear end of the fixed plate (711) is fixedly connected to the front end of the pressure plate (712); the lower end of the pressure plate (712) is inlaid with a rubber strip; the upper end of the spring (715) is fixedly connected to the lower end of the control frame (713); the lower end of the slide bar (714) is fixedly connected to the side of the upper end of the support frame (71) near the support plate (710); the lower end of the spring (715) is fixedly connected to the outer side of the upper end of the support frame (71) near the slide bar (714); and one group of the main pulleys (77) is mounted on the inner side of the bracket (718) via a rotating shaft.

5. An automatic welding method for a front bumper beam of an automobile, used for operating an automatic welding device for a front bumper beam of an automobile as claimed in claim 4, characterized in that: The following steps are involved: S1: First, the large motor (618) drives the threaded shaft (613) to rotate, so that the adjusting ring (614) drives the linkage frame (615) to move, and the docking plate (67) moves accordingly, so that the connecting plate (66) moves along the limit rod (610) through the inclined groove (69), thereby driving the placement table (65) to move obliquely upward, and then the front bumper beam of the automobile to move obliquely upward, thereby realizing automatic adjustment of the welding position of the front bumper beam of the automobile; S2: Secondly, the sliding rod (686) is driven to move by the docking plate (67), so that the mobile bin (683) moves to one side, and the sliding rod (686) drives the resistance wheel (685) to move upward inside the mobile bin (683), so that the resistance wheel (685) passes through the slot (684) and generates a damping force between the mobile bin (683), so that the sliding rod (686) moves slowly, and then the docking plate (67) moves slowly, so that the placement table (65) is subjected to resistance when moving obliquely upward, so that the placement table (65) moves obliquely upward steadily and slowly; S3: Finally, by starting the small motor (717), the secondary pulley (79) is wound around the belt (78), so that the belt (78) pulls the pressing plate (712) to move upward, and the adjusting frame (74) stretches the spring (715) through the control frame (713), so as to facilitate the adjustment of the pressing plate (712) to press downward, thereby making the pressing plate (712) move along the inclination of the front bumper beam of the automobile, ensuring that the pressing plate (712) always stably fits on the surface of the front bumper beam of the automobile.

Images