A trailer side panel stitch welding device

Abstract

The present application relates to the technical fields of splicing and welding equipment, and proposes a trailer side plate splicing and welding device, which comprises two supporting plates, a side plate angle adjusting turntable arranged on the two supporting plates, a guide rail fixed between the two supporting plates, a sliding table arranged on the guide rail, a driving mechanism for driving the sliding table to move horizontally on the guide rail, a polishing mechanism and a welding mechanism arranged on the sliding table for polishing and splicing the trailer side plate in sequence, and a first motor for driving the screw rod to rotate, and the sliding table moves to the gap of the trailer side plate on the guide rail through the thread cooperation between the screw rod and the screw rod nut at the bottom of the sliding table, and the polishing mechanism and the welding mechanism on the sliding table polish and weld the side plate welding edge in sequence. Compared with the prior art, the polishing and splicing automation of the trailer side plate can be realized on the basis of the prior art.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a trailer side panel welding device. Background Technology

[0002] Large trailers are essential equipment in modern logistics. A trailer is a vehicle with its axles positioned behind the vehicle's center of gravity and equipped with a coupling device that transmits horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, and they come in various types, including 11-meter stake semi-trailers, 13-meter stake semi-trailers, and low-flatbed semi-trailers. They are heavy-duty transport vehicles connected to the tractor unit by a tow pin. Due to the large size of semi-trailers, the welding of their side panels, crossbeams, and longitudinal beams requires matching auxiliary tools to ensure the positioning and fixation of each weld joint. In their production process, trailer side panels are made by welding multiple pieces together. Because trailers are long, welding equipment is usually needed to achieve long-distance welding and precise interface welding.

[0003] A search revealed that CN218197005U discloses a plastic sheet angle welding device. It includes: a frame body with a pair of movable stages on the frame body, the pairs of movable stages being movable horizontally and capable of engaging and disengaging with each other; a heating plate disposed between the pairs of movable stages, the heating plate being capable of vertical lifting and lowering; and a plastic sheet fixing seat on each of the pairs of movable stages, each plastic sheet fixing seat including a vacuum suction plate, the two sides of which form a preset angle. This plastic sheet angle welding device is suitable for welding plastic sheets at an angle and has a high degree of automation.

[0004] However, the above-mentioned welding device still has the following problems: The above-mentioned welding device heats the surface of the plates with a heating plate to achieve welding between plastic plates. However, this method is not suitable for welding steel trailer side panels. The existing welding method is to lift the trailer side panels in combination with the above-mentioned fixing method, and then manually grind them before welding them with an electric welding machine. In actual operation, it is difficult to control the grinding depth when manually grinding, resulting in inconsistent grinding quality. Moreover, it is not easy to control the grinding position of the grinding disc, resulting in large wear and tear on the grinding disc, which needs to be replaced frequently. In addition, when manually welding, in order to ensure that the welding coverage covers the reserved gap between the side panels, it is necessary to manually control the left and right swing of the welding head. Since the length of the trailer side panel is relatively long compared with the length of general welded parts, coupled with the weight of the handheld equipment, the welding difficulty is high, and the welding quality is also difficult to control. Summary of the Invention

[0005] This invention proposes a trailer side panel welding device, which solves the problems in the prior art where it is difficult to control the depth and position of the grinding disc during manual grinding, and the difficulty in controlling the left and right swaying of the welding head during manual welding.

[0006] The technical solution of the present invention is as follows: a trailer side panel welding device, comprising two support plates and a side panel angle adjustment turntable disposed on the two support plates, a guide rail fixed between the two support plates, a slide table disposed on the guide rail, and a drive mechanism for driving the slide table to move horizontally on the guide rail, and a grinding mechanism and a welding mechanism disposed on the slide table for grinding and welding the trailer side panels sequentially.

[0007] The polishing mechanism includes a mounting platform, a polishing device mounted on the mounting platform, and a floating component that causes the polishing device to float up and down when it is working.

[0008] The welding mechanism includes a shaking table, a box set on the shaking table, an arc welding machine fixed on the box, and a shaking component. A rack is fixed on one side of the guide rail. When the shaking table moves along the guide rail with the slide table, it drives the box to swing back and forth on the shaking table in cooperation with the rack.

[0009] Preferably, the driving mechanism includes a first motor, which is fixed to the outer end face of the guide rail. A lead screw is fixed to the output end of the first motor, and the lead screw is rotatably connected to the guide rail. A lead screw nut is fixed to the bottom of the slide, and the lead screw and the lead screw nut are threadedly engaged.

[0010] Preferably, the mounting platform includes a support platform and a mounting seat arranged parallel to the support platform. The support platform is fixed to a slide platform, and a guide rod that slides through the mounting seat is fixed to the top of the support platform. A first spring is sleeved on the guide rod, and the two ends of the first spring are fixed to the support platform and the mounting seat, respectively.

[0011] Preferably, the grinding equipment includes a second motor, which is fixed on a mounting base, and a grinding disc is fixed on the output shaft of the second motor. A bushing is rotatably connected to the outer end of the output shaft of the second motor.

[0012] Preferably, the floating component includes a bracket, the bracket being H-shaped, the bushing being slidably connected to the bracket, a first pulley and a fifth pulley being fixed on the output shaft of the second motor, a second pulley being rotatably connected to the bracket, a fixing plate being fixed to the outer side of the second pulley, and a fourth pulley being rotatably connected to both ends of the fixing plate, the fifth pulley being connected to the two fourth pulleys via a tension belt, a slide block being slidably connected to the bracket, a third pulley being rotatably connected to the outer side of the slide block, the first pulley, the second pulley, and the third pulley being connected via a transmission belt, and a second spring being fixed to one side of the slide block, the end of the second spring away from the slide block being fixed to the bracket.

[0013] Preferably, the bottom of the shaker is provided with a sliding groove for limiting the sliding of the box body, and a third spring is fixed on both sides of the box body, with the end of the third spring away from the box body fixed to the shaker.

[0014] Preferably, the rocking component includes a first gear and a second gear meshing with the first gear. A first shaft is fixed at the center of the first gear, and a second shaft is fixed at the center of the second gear. Both the first shaft and the second shaft are rotatably connected to the rocker. The first gear meshes with a rack. The top end of the second shaft extends into the housing and is fixed with a pressure roller. The pressure roller is eccentrically positioned with respect to the second shaft.

[0015] Preferably, two parallel stop bars are fixed inside the box, and the pressure roller is located between the two stop bars.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. In this invention, the side plate angle adjustment turntable is used to lift and rotate to a certain angle, while keeping the gap between the two side plates within the standard welding distance. The first motor drives the lead screw to rotate. Under the threaded engagement of the lead screw and the lead screw nut at the bottom of the slide, the slide moves on the guide rail toward the gap between the trailer side plates. The grinding mechanism and welding mechanism on the slide successively grind and weld the welding edge of the side plate. Compared with the prior art, this invention can realize the automated processing of grinding and welding of trailer side plates.

[0018] 2. In the present invention, during the grinding process, the output shaft of the second motor drives the first pulley to rotate, and the second pulley rotates synchronously under the transmission action of the transmission belt. This drives the fixed plate and the fourth pulleys at both ends of the fixed plate to rotate circumferentially around the second pulley. Then, the tension belt pulls the fifth pulley, causing the height of the fifth pulley to rise and fall repeatedly. Under the elastic force of the second spring, the position of the third pulley on the bracket moves horizontally according to the height change of the fifth pulley. In this way, the height of the grinding disc can be continuously fluctuated up and down, thereby adjusting the contact position with the welding edge of the side plate. This ensures that all parts of the grinding disc can make uniform contact with the welding edge of the side plate, thereby improving the effective utilization rate of the grinding disc, reducing wear, and solving the problem that the grinding depth and grinding position of the grinding disc are difficult to control in the prior art.

[0019] 3. In the electric welding process of this invention, as the rocking table moves with the slide, the first shaft rotates due to the meshing of the first gear and the rack, and the second shaft rotates due to the meshing of the first gear and the second gear, which in turn drives the pressure roller to rotate. Since the pressure roller and the second shaft are eccentrically set, when the second shaft rotates, the pressure roller can squeeze the stop bars on both sides, and with the elastic force of the third spring, the box body reciprocates on the rocking table. Therefore, during the horizontal movement of the rocking table, the arc welding machine can replace the manual hand-held method to perform rocking electric welding on the welded edge of the ground side plate, so that the weld seam can completely cover the gap between the two side plates, solving the problem of the difficulty of controlling the left and right rocking welding head in the prior art. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of a trailer side panel welding device proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the trailer side panel welding device proposed in this invention from another perspective.

[0023] Figure 3 This is a schematic diagram of the guide rail and slide structure proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the slide structure proposed in this invention;

[0025] Figure 5 This is a schematic diagram of the grinding mechanism structure proposed in this invention;

[0026] Figure 6 This is a front view schematic diagram of the grinding mechanism proposed in this invention;

[0027] Figure 7 This is a schematic diagram of the welding mechanism structure proposed in this invention;

[0028] Figure 8 This is a schematic diagram of the welding mechanism proposed in this invention from another perspective;

[0029] Figure 9 This is a schematic diagram of a half-section of the welding mechanism proposed in this invention;

[0030] In the diagram: 1. Support plate; 2. Side plate angle adjustment turntable; 3. Guide rail; 4. Slide table; 41. Lead screw nut; 5. Grinding mechanism; 51. Mounting platform; 511. Support platform; 512. Mounting base; 513. Guide rod; 514. First spring; 52. Grinding equipment; 521. Second motor; 522. Grinding disc; 523. Bushing; 53. Floating component; 531. Bracket; 532. First pulley; 533. Second pulley; 534. Third pulley; 535. Slide; 536. Second spring 537. Transmission belt; 538. Fixed plate; 539. Fourth pulley; 5310. Tension belt; 5311. Fifth pulley; 6. Welding mechanism; 61. Shaking table; 611. Third spring; 612. Slide groove; 62. Box body; 621. Stop bar; 63. Arc welding machine; 64. Shaking component; 641. First gear; 642. Second gear; 643. First shaft; 644. Second shaft; 645. Pressure roller; 7. Drive mechanism; 71. First motor; 72. Lead screw; 8. Rack. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1 and Figure 2 This invention provides a technical solution: a trailer side panel welding device, comprising two support plates 1 and a side panel angle adjusting turntable 2 mounted on the two support plates 1. The specific structure and movement of the side panel angle adjusting turntable 2 can be found in the prior art. Its main function is to fix the side panels and adjust the welding angle of the side panels. A guide rail 3 is fixed between the two support plates 1. A slide table 4 is mounted on the guide rail 3, and a drive mechanism 7 drives the slide table 4 to move horizontally on the guide rail 3. A grinding mechanism 5 and a welding mechanism 6 are mounted on the slide table 4 for sequential grinding and welding of the trailer side panels. Figure 3 and Figure 4As shown, the grinding mechanism 5 includes a mounting table 51, a grinding device 52 mounted on the mounting table 51, and a floating component 53 that causes the grinding device 52 to move up and down when it is working. The welding mechanism 6 includes a shaking table 61, a housing 62 mounted on the shaking table 61, an arc welding machine 63 fixed on the housing 62, and a rocking component 64. A rack 8 is fixed to one side of the guide rail 3. When the shaking table 61 moves along the guide rail 3 with the slide table 4, it works with the rack 8 to drive the housing 62 to swing back and forth on the shaking table 61. The driving mechanism 7 includes a first motor 71, which is fixed to the outer end face of the guide rail 3. The output end of the first motor 71 is fixed to the outer end face of the guide rail 3. There is a lead screw 72, which is rotatably connected to the guide rail 3. The bottom of the slide table 4 is fixed with a lead screw nut 41. The lead screw 72 and the lead screw nut 41 are threadedly engaged. During operation, the two trailer side panels to be welded are placed on the side panel angle adjustment turntable 2. The side panel angle adjustment turntable 2 lifts and rotates to a certain angle, keeping the gap between the two side panels within the standard welding distance. The first motor 71 drives the lead screw 72 to rotate. With the threaded engagement between the lead screw 72 and the lead screw nut 41 at the bottom of the slide table 4, the slide table 4 moves on the guide rail 3 toward the gap between the trailer side panels. The grinding mechanism 5 and the welding mechanism 6 on the slide table 4 grind and weld the welding edge of the side panel in turn.

[0033] Please see Figure 5 and Figure 6The mounting platform 51 includes a support platform 511 and a mounting base 512 arranged parallel to the support platform 511. The support platform 511 is fixed on the slide table 4. A guide rod 513 that slides through the mounting base 512 is fixed to the top of the support platform 511. A first spring 514 is sleeved on the guide rod 513. The two ends of the first spring 514 are fixed to the support platform 511 and the mounting base 512, respectively. The grinding device 52 includes a second motor 521, which is fixed to the mounting base 512. The output shaft of the second motor 521... A grinding disc 522 is fixed on the upper part. A bushing 523 is rotatably connected to the outer end of the output shaft of the second motor 521. The floating component 53 includes a bracket 531, which is H-shaped. The bushing 523 is slidably connected to the bracket 531. A first pulley 532 and a fifth pulley 5311 are also fixed on the output shaft of the second motor 521. A second pulley 533 is rotatably connected to the bracket 531. A fixing plate 538 is fixed to the outer side of the second pulley 533. A fourth pulley 539 is rotatably connected to both ends of the fixing plate 538. The fifth pulley 539... Wheel 5311 is connected to two fourth pulleys 539 via a tension belt 5310. A slide block 535 is slidably connected to the bracket 531. A third pulley 534 is rotatably connected to the outer side of the slide block 535. The first pulley 532, the second pulley 533, and the third pulley 534 are connected via a transmission belt 537. A second spring 536 is fixed to one side of the slide block 535. The end of the second spring 536 away from the slide block 535 is fixed to the bracket 531. The output shaft of the second motor 521 drives the first pulley 532 to rotate. The second pulley 533 rotates synchronously under the transmission action of the transmission belt 537, which in turn drives the fixed plate 538 and the fourth pulleys 539 at both ends of the fixed plate 538 to rotate circumferentially around the second pulley 533. In turn, the tension belt 5310 pulls the fifth pulley 5311, causing the height of the fifth pulley 5311 to rise and fall repeatedly. Under the elastic force of the second spring 536, the position of the third pulley 534 on the bracket 531 moves horizontally in accordance with the change in the height of the fifth pulley 5311.

[0034] Please see Figure 7 , Figure 8 and Figure 9The bottom of the shaker 61 has a sliding groove 612 for sliding and limiting the housing 62. Third springs 611 are fixed to both sides of the housing 62. The end of the third spring 611 away from the housing 62 is fixed to the shaker 61. The shaking component 64 includes a first gear 641 and a second gear 642 meshing with the first gear 641. A first shaft 643 is fixed at the center of the first gear 641, and a second shaft 644 is fixed at the center of the second gear 642. Both the first shaft 643 and the second shaft 644 are rotatably connected to the shaker 61. The first gear 641 meshes with the rack 8. The top end of the second shaft 644 extends into the housing 62 and is fixed with a pressure roller 645. The second shaft 644 is eccentrically positioned, and two parallel stop bars 621 are fixed inside the box body 62. The pressure roller 645 is located between the two stop bars 621. As the rocking bed 61 moves with the slide table 4, the first shaft 643 is driven to rotate by the meshing of the first gear 641 and the rack 8. The second shaft 644 is driven to rotate by the meshing of the first gear 641 and the second gear 642, which in turn drives the pressure roller 645 to rotate. Since the pressure roller 645 and the second shaft 644 are eccentrically positioned, when the second shaft 644 rotates, the pressure roller 645 can squeeze the stop bars 621 on both sides. With the elastic force of the third spring 611, the box body 62 is made to rock back and forth on the rocking bed 61.

[0035] The working principle and usage process of this invention are as follows: During operation, two trailer side panels to be welded are placed on the side panel angle adjustment turntable 2. The side panel angle adjustment turntable 2 is lifted and rotated to a certain angle, and the gap between the two side panels is kept within the standard welding distance. The first motor 71 drives the lead screw 72 to rotate. With the threaded engagement between the lead screw 72 and the lead screw nut 41 at the bottom of the slide table 4, the slide table 4 moves on the guide rail 3 toward the gap between the trailer side panels. The grinding mechanism 5 and the welding mechanism 6 on the slide table 4 grind and weld the welding edge of the side panel in turn.

[0036] During the grinding process, the output shaft of the second motor 521 drives the first pulley 532 to rotate. Under the transmission action of the transmission belt 537, the second pulley 533 rotates synchronously, which in turn drives the fixed plate 538 and the fourth pulleys 539 at both ends of the fixed plate 538 to rotate circumferentially around the second pulley 533. Then, the tension belt 5310 pulls the fifth pulley 5311, causing the height of the fifth pulley 5311 to rise and fall repeatedly. Under the elastic force of the second spring 536, the position of the third pulley 534 on the bracket 531 moves horizontally according to the change in the height of the fifth pulley 5311. In this way, the height of the grinding disc 522 can be continuously fluctuated up and down, thereby adjusting the contact position with the welding edge of the side plate, so that all parts of the grinding disc 522 can make uniform contact with the welding edge of the side plate, thereby improving the effective utilization rate of the grinding disc 522 and reducing wear.

[0037] During the electric welding process, as the rocker bed 61 moves with the slide table 4, the first shaft 643 rotates due to the meshing of the first gear 641 and the rack 8. The second shaft 644 rotates due to the meshing of the first gear 641 and the second gear 642, which in turn drives the pressure roller 645 to rotate. Since the pressure roller 645 and the second shaft 644 are eccentrically set, when the second shaft 644 rotates, the pressure roller 645 can squeeze the stop bars 621 on both sides. With the elastic force of the third spring 611, the box 62 reciprocates on the rocker bed 61. Therefore, during the horizontal movement of the rocker bed 61, the arc welding machine 63 can replace the manual hand-held method to perform rocking electric welding on the welded edge of the ground side plate, so that the weld seam can completely cover the gap between the two side plates.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A trailer side plate tailor-welding device, comprising two support plates (1) and a side plate angle-adjusting turntable (2) arranged on the two support plates (1), characterized in that, Two support plates (1) are fixed with guide rails (3), the guide rails (3) are provided with sliding table (4), and the driving mechanism (7) for driving sliding table (4) horizontal movement on guide rail (3), the sliding table (4) is provided with grinding mechanism (5) and welding mechanism (6) for polishing and welding trailer side plate in turn; The grinding mechanism (5) includes a mounting table (51), a polishing device (52) disposed on the mounting table (51), and a floating component (53) for floating the polishing device (52) up and down when the polishing device (52) is working; The welding mechanism (6) includes a cradle (61), a box body (62) disposed on the cradle (61), an arc welder (63) fixed to the box body (62), and a rocking component (64), one side of the guide rail (3) is fixed with a rack (8), the cradle (61) is driven to reciprocatingly rock on the cradle (61) with the box body (62) when the sliding table (4) travels on the guide rail (3) in cooperation with the rack (8); The mounting table (51) includes a support table (511) and a mounting seat (512) disposed parallel to the support table (511), the support table (511) is fixed to the sliding table (4), the top of the support table (511) is fixed with a guide rod (513) slidingly penetrating the mounting seat (512), the guide rod (513) is externally sleeved with a first spring (514), and the two ends of the first spring (514) are respectively fixed with the support table (511) and the mounting seat (512); The polishing device (52) includes a second motor (521), the second motor (521) is fixed to the mounting seat (512), the output shaft of the second motor (521) is fixed with a grinding disc (522), and the outer end of the output shaft of the second motor (521) is rotatably connected with a shaft sleeve (523); The floating component (53) includes a bracket (531), the bracket (531) is H-shaped, the shaft sleeve (523) is slidingly connected with the bracket (531), the output shaft of the second motor (521) is further fixed with a first pulley (532) and a fifth pulley (5311), the bracket (531) is rotatably connected with a second pulley (533), the outer side of the second pulley (533) is fixed with a fixed plate (538), the two ends of the fixed plate (538) are rotatably connected with a fourth pulley (539), the fifth pulley (5311) and the two fourth pulleys (539) are drivingly connected through a tension belt (5310), the bracket (531) is slidingly connected with a sliding seat (535), the outer side of the sliding seat (535) is rotatably connected with a third pulley (534), the first pulley (532), the second pulley (533), and the third pulley (534) are drivingly connected through a transmission belt (537), one side of the sliding seat (535) is fixed with a second spring (536), and one end of the second spring (536) away from the sliding seat (535) is fixed with the bracket (531). The bottom of the rocking bed (61) is provided with a sliding groove (612) for sliding limiting the box body (62), and the two sides of the box body (62) are fixedly provided with third springs (611), and one end of the third spring (611) away from the box body (62) is fixedly connected with the rocking bed (61); The rocking part (64) comprises a first gear (641) and a second gear (642) engaged with the first gear (641), the center of the first gear (641) is fixedly provided with a first shaft (643), the center of the second gear (642) is fixedly provided with a second shaft (644), the first shaft (643) and the second shaft (644) are rotationally connected with the rocking bed (61), the first gear (641) is engaged with the rack (8), the top end of the second shaft (644) extends into the box body (62) and is fixedly provided with a pressing wheel (645), and the pressing wheel (645) is eccentrically arranged with the second shaft (644); The box body (62) is fixedly provided with two parallel arranged blocking rods (621), and the pressing wheel (645) is between the two blocking rods (621).

2. A trailer side panel stitch welding apparatus according to claim 1, wherein, The driving mechanism (7) comprises a first motor (71), the first motor (71) is fixed to the outer end face of the guide rail (3), the output end of the first motor (71) is fixedly provided with a lead screw (72), the lead screw (72) is rotationally connected with the guide rail (3), and the bottom of the sliding table (4) is fixedly provided with a lead screw nut (41), the lead screw (72) is in threaded cooperation with the lead screw nut (41).

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