A truck-mounted crane boom assembly and welding device

Abstract

The present invention belongs to the technical field of the manufacturing of the crane boom of a truck-mounted crane, and specifically relates to an assembling and welding device for the crane boom of a truck-mounted crane, which comprises a base. A clamping mechanism for fixing two V-shaped plates and two rectangular plates is arranged on the base; a V-shaped area surrounding mechanism for intercepting the welding slag generated during the welding process is also arranged on the base. The present invention realizes that by means of the V-shaped area surrounding mechanism, after the V-shaped plates and the rectangular plates are fixed and assembled into a complete hexagonal prism boom, before welding, the welding seam area can be surrounded through the mutual cooperation of the slag collection box, the first plate body, the second plate body and the third plate body, and then the welding work is carried out. The welding slag splashed during the welding process will be intercepted by the slag collection box, the first plate body, the second plate body and the third plate body, and the welding slag will fall into the slag collection box under the action of gravity, thereby avoiding the situation that the welding slag splashes to areas outside the welding seam.

Description

Technical Field

[0001] The present invention belongs to the technical field of the manufacture of the crane boom of a truck-mounted crane, and specifically relates to an assembly and welding device for the crane boom of a truck-mounted crane. Background Art

[0002] A truck-mounted crane is a device that realizes the lifting, slewing, and hoisting of goods through a hydraulic lifting and telescoping system. It is usually assembled on a truck or a special chassis, and the crane boom is a key component for the truck-mounted crane to realize the hoisting of goods. Since the crane boom of a truck-mounted crane usually adopts a hexagonal prism structure, during the production process of the crane boom of a truck-mounted crane, usually two V-shaped plates and two rectangular plates are assembled into a complete hexagonal prism structure, and then the joints of the V-shaped plates and the rectangular plates are welded to form a complete crane boom.

[0003] The patent with the publication number CN116329839A discloses an assembly and welding device for the crane boom of a truck-mounted crane, which includes a gantry frame, a crane boom welding mechanism that can be lifted at the top of the middle of the gantry frame, and a crane boom conveying mechanism that can move through the gantry frame. The crane boom welding mechanism includes a screw jack installed on the gantry frame, a pair of flipping rods that can be flipped at the output end of the screw jack, a driving component one for driving the two flipping rods to rotate, a welding torch that can be rotated in multiple directions on the flipping rod, and an adjustment component for controlling the rotation angle positions of each direction of the welding torch. The crane boom conveying mechanism includes a conveying guide rail, a front vehicle body and a rear vehicle body that move on the conveying guide rail, a driving component two for driving the front vehicle body and the rear vehicle body to move forward and backward, support frames respectively fixed on the front vehicle body and the rear vehicle body, rotating boxes respectively rotating on the two support frames, a driving component three for driving the two rotating boxes to rotate, and a pair of crane boom plate fixing and combining components respectively arranged on the two rotating boxes. The advantages of this patent are: it can automatically and quickly assemble and weld the crane boom of a truck-mounted crane.

[0004] However, the above technical solution still has the following deficiencies in the actual application process:

[0005] Since it is necessary to weld the joints of the V-shaped plates and the rectangular plates, during the welding process, the welding slag generated will splash to the areas outside the weld seam, which not only easily pollutes the surrounding environment, but also causes the welding slag to adhere to the inner and outer surfaces of the crane boom, affecting the appearance quality of the crane boom, and the welding slag may be relatively scattered, and it is also time-consuming and laborious to clean up later.

[0006] Therefore, the present invention provides an assembly and welding device for the crane boom of a truck-mounted crane. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the present invention proposes an assembly and welding device for the crane boom of a truck-mounted crane.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a vehicle-mounted crane boom assembly and welding device, including a base, and a clamping mechanism for fixing two V-shaped plates and two rectangular plates is arranged on the base;

[0009] A V-shaped area surrounding mechanism for intercepting welding slag generated during the welding process is further arranged on the base;

[0010] The V-shaped area surrounding mechanism includes a sliding column slidably connected to one side of the upper end surface of the base. A slag collection box is fixedly connected to the upper end of the sliding column. A plate three is fixedly connected to the right end surface of the slag collection box. A limiting rod is slidably connected to the right end surface of the slag collection box. A sliding sleeve is sleeved and slidably connected to the limiting rod. A guiding column is fixedly connected to one side of the sliding sleeve. A V-shaped groove is arranged on the plate three. The guiding column passes through the V-shaped groove and can slide at the V-shaped groove. One end of the guiding column is fixedly connected to a plate one. A threaded block one is slidably connected to one side of the lower end surface of the slag collection box. Two sliding rods two are slidably connected to one side of the threaded block one. One end of the sliding rod two is fixedly connected to a plate two;

[0011] A sliding rod one is fixedly connected to one side of the threaded block one. The sliding rod one is slidably connected to a threaded block two. Two sliding rods three are slidably connected to one side of the threaded block two. One end of the sliding rod three is fixedly connected to a mounting block. A welding torch is fixedly connected to one side of the mounting block.

[0012] Preferably, the clamping mechanism includes a pillar fixedly connected to one side of the upper end surface of the base. A frame one is rotatably arranged on one side of the upper end of the pillar. Two sliding rods six are fixedly connected to both ends of the frame one. Two clamping plates three are slidably connected to both sides of the sliding rod six. A clamping plate four is slidably connected to one side of the clamping plate three. A frame two is fixedly connected to the middle of one side of the frame one. Two sliding rods four are fixedly connected to both ends of the frame two. Two clamping plates one are slidably connected to both sides of the sliding rod four. A sliding rod five is fixedly connected to one side of the clamping plate one. The sliding rod five is slidably connected to a clamping plate two. A bidirectional threaded rod two is rotatably arranged at both ends of the frame one. Both sides of the bidirectional threaded rod two are threadedly connected to one side of the clamping plate three. A motor seven is fixedly connected to one end of the frame one. The output end of the motor seven is fixedly connected to one end of the bidirectional threaded rod two. One end of the clamping plate four is threadedly connected to a threaded rod six. A motor ten is fixedly connected to one side of the clamping plate three. The output end of the motor ten is fixedly connected to one end of the threaded rod six.

[0013] Preferably, a bidirectional threaded rod one is rotatably arranged at both ends of the frame two. Both sides of the bidirectional threaded rod one are threadedly connected to one end of the clamping plate one. A motor eight is fixedly connected to one end of the frame two. The output end of the motor eight is fixedly connected to one end of the bidirectional threaded rod one. A threaded rod five is rotatably arranged on one side of the clamping plate one. The threaded rod five is threadedly connected to one end of the clamping plate two. A motor nine is fixedly connected to one side of the clamping plate one. The output end of the motor nine is fixedly connected to one end of the threaded rod five.

[0014] Preferably, one side of the right end face of the pillar is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with the middle part of one side of the frame body 1.

[0015] Preferably, one side of the second threaded block is fixedly connected with a second electric push rod, the piston end of the second electric push rod is fixedly connected with one side of the mounting block, one side of the second threaded block is threadedly connected with a third threaded rod, one end of the third threaded rod is rotatably arranged on the first threaded block, and one side of the first threaded block is fixedly connected with a fifth motor, and the output end of the fifth motor is fixedly connected with one end of the third threaded rod.

[0016] Preferably, one side of the first threaded block is fixedly connected with a first electric push rod, and the piston end of the first electric push rod is fixedly connected with one side of the second plate body.

[0017] Preferably, one end of the first threaded block is threadedly connected with a fourth threaded rod, both ends of the fourth threaded rod are rotatably arranged on the slag collection box, one end of the slag collection box is fixedly connected with a third motor, and the output end of the third motor is fixedly connected with one end of the fourth threaded rod.

[0018] Preferably, a push block is slidably connected inside the slag collection box, the bottom of the push block is attached to the inner bottom of the slag collection box, one end of the push block is threadedly connected with a second threaded rod, both ends of the second threaded rod are rotatably arranged on the slag collection box, and one end of the slag collection box is fixedly connected with a fourth motor, and the output end of the fourth motor is fixedly connected with one end of the second threaded rod.

[0019] Preferably, one side of the lower end of the sliding column is threadedly connected with a first threaded rod, both ends of the first threaded rod are rotatably arranged on the base, one side of the upper end face of the base is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with one end of the first threaded rod.

[0020] Preferably, a chute rod is rotatably arranged on one side of the right end face of the third plate body, the guide post is inserted into the chute of the chute rod and is slidably connected therewith, and one side of the right end face of the third plate body is fixedly connected with a sixth motor, and the output end of the sixth motor is fixedly connected with one end of the chute rod.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. A swing jib assembling and welding device of a truck-mounted crane according to the present invention places two V-shaped plates between the clamping plates one and two on both sides, and aligns the included angle of the V-shaped plates with the included angles of the clamping plates one and two. Then, the motor nine drives the rotation of the threaded rod five to move the clamping plate two, so that the V-shaped plates can be clamped by the clamping plates one and two. Then, two rectangular plates are placed between the clamping plates four and three, and the motor ten drives the rotation of the threaded rod six to move the clamping plate four, so that the rectangular plates can be clamped by the clamping plates three and four. Moreover, the middle area of the rectangular plates is clamped by the clamping plates four and three, and the distances between the two end faces on both sides of the clamping plate four and the two end faces on both sides of the rectangular plates are the same. Then, the motor seven drives the rotation of the double-threaded rod two, and the motor eight drives the rotation of the double-threaded rod one, so that the two clamping plates three approach each other, and the two clamping plates one approach each other until the edges of the V-shaped plates are fitted with the edges of the rectangular plates. At this time, the two V-shaped plates and the two rectangular plates form a complete hexagonal prism, and the seams between the V-shaped plates and the rectangular plates can be welded, thereby realizing the positioning and assembling effects of the two V-shaped plates and the two rectangular plates, and further ensuring the stability during the welding process.

[0023] 2. A swing jib assembling and welding device of a truck-mounted crane according to the present invention utilizes a V-shaped area surrounding mechanism. When the V-shaped plates and the rectangular plates are fixed and assembled into a complete hexagonal prism swing jib, before welding, through the mutual cooperation of the slag collecting box, the plate one, the plate two, and the plate three, the weld area can be surrounded, and then the welding work can be carried out. During the welding process, the splashed welding slag will be intercepted by the slag collecting box, the plate one, the plate two, and the plate three, and the welding slag will fall into the slag collecting box under the action of gravity, thereby avoiding the situation that the welding slag splashes to areas outside the weld, ensuring the cleanliness of the surrounding environment and the inner and outer surfaces of the swing jib, improving the appearance quality of the swing jib. And, because the welding slag is only concentrated in the surrounded area, so, during subsequent cleaning, it is also more convenient and labor-saving. And, when the welding at one weld is completed, drive the plate two and the welding torch away from the weld, and drive the guide post to move along the V-shaped groove, then the edge of the plate one can be used to scrape the welding slag remaining in the V-shaped area of the swing jib until the plate one is attached to the upper end face of the slag collecting box. At this time, the welding slag in the V-shaped area has been scraped into the slag collecting box, and the removal of the welding slag in the V-shaped area of the swing jib can be realized, thereby avoiding the situation that when the swing jib rotates, the welding slag slips to the non-weld area of the swing jib along with the rotation of the swing jib, and further affecting the appearance quality of the swing jib. And, after a certain amount of welding slag accumulates in the slag collecting box, drive the push block to move horizontally from left to right to push the welding slag inside the slag collecting box to the right until the welding slag is concentrated at the right end of the slag collecting box, and the welding slag is concentrated, and the staff can easily clean the welding slag inside the slag collecting box, thereby avoiding the situation that when cleaning the welding slag inside the slag collecting box, because the welding slag is distributed at various positions inside the slag collecting box, the cleaning is more cumbersome. Description of the Drawings

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic three-dimensional structure diagram of the present invention;

[0026] Figure 2 is Figure 1 The partial enlarged view at position A in

[0027] Figure 3 It is a schematic three-dimensional structure diagram of the second plate body;

[0028] Figure 4 It is a schematic three-dimensional structure diagram of the push block;

[0029] Figure 5 It is a schematic three-dimensional structure diagram of the first plate body;

[0030] Figure 6 is Figure 5 The partial enlarged view at position B in

[0031] Figure 7 It is a schematic three-dimensional structure diagram of the second threaded block;

[0032] Figure 8 It is a schematic three-dimensional structure diagram of the third plate body;

[0033] Figure 9 It is a schematic three-dimensional structure diagram of the support column;

[0034] Figure 10 It is a schematic three-dimensional structure diagram of the slag collecting box;

[0035] Figure 11 It is a schematic three-dimensional structure diagram of the third clamping plate;

[0036] Figure 12 It is a schematic three-dimensional structure diagram of the first clamping plate.

[0037] In the figure: 1. Base; 2. Support pillar; 3. First motor; 4. Second motor; 5. First threaded rod; 6. Slide post; 7. First plate body; 8. Slag collection box; 9. Third motor; 10. Pusher block; 11. Fourth motor; 12. Second threaded rod; 13. First threaded block; 14. Fifth motor; 15. First slide bar; 16. Third threaded rod; 17. First electric push rod; 18. Second slide bar; 19. Second plate body; 20. Fourth threaded rod; 21. Slide groove rod; 22. Guide post; 23. Sixth motor; 24. Third plate body; 25. Limit rod; 26. Slide sleeve; 27. V-shaped groove; 28. Second threaded block; 29. Second electric push rod; 30. Third slide bar; 31. Mounting block; 32. Welding torch; 33. First frame body; 34. Seventh motor; 35. Eighth motor; 36. Second frame body; 37. First bidirectional threaded rod; 38. Fourth slide bar; 39. First clamping plate; 40. Second clamping plate; 41. Ninth motor; 42. Fifth threaded rod; 43. Fifth slide bar; 44. Tenth motor; 45. Third clamping plate; 46. Sixth threaded rod; 47. Fourth clamping plate; 48. Second bidirectional threaded rod; 49. Sixth slide bar. Detailed implementation mode

[0038] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0039] Please refer to Figures 1 - 12 , the present invention provides a technical solution: a welding device for assembling a truck crane boom, including a base 1, and a clamping mechanism for fixing two V-shaped plates and two rectangular plates is arranged on the base 1;

[0040] A V-shaped area surrounding mechanism for intercepting welding slag generated during the welding process is also arranged on the base 1;

[0041] The V-shaped area surrounding mechanism includes a slide post 6 slidably connected to one side of the upper end surface of the base 1. A slag collection box 8 is fixedly connected to the upper end of the slide post 6. A third plate body 24 is fixedly connected to the right end surface of the slag collection box 8. A limit rod 25 is slidably connected to the right end surface of the slag collection box 8. A slide sleeve 26 is sleeved and slidably connected to the limit rod 25. A guide post 22 is fixedly connected to one side of the slide sleeve 26. A V-shaped groove 27 is arranged on the third plate body 24. The guide post 22 passes through the V-shaped groove 27 and can slide at the V-shaped groove 27. One end of the guide post 22 is fixedly connected to a first plate body 7. A first threaded block 13 is slidably connected to one side of the lower end surface of the slag collection box 8. Two second slide bars 18 are slidably connected to one side of the first threaded block 13. One end of the second slide bar 18 is fixedly connected to a second plate body 19;

[0042] One side of the first threaded block 13 is fixedly connected with the first sliding rod 15. The first sliding rod 15 is slidably connected with the second threaded block 28. One side of the second threaded block 28 is slidably connected with two third sliding rods 30. One end of the third sliding rod 30 is fixedly connected with the mounting block 31. One side of the mounting block 31 is fixedly connected with the welding torch 32.

[0043] In this embodiment, as Figure 6 , Figure 9 , Figure 11 , Figure 12 shown, the clamping mechanism includes a support column 2 fixedly connected to one side of the upper end surface of the base 1. One side of the upper end of the support column 2 is rotatably provided with a first frame body 33. Both ends of the first frame body 33 are fixedly connected with sixth sliding rods 49. Both sides of the sixth sliding rod 49 are slidably connected with third clamping plates 45. One side of the third clamping plate 45 is slidably connected with a fourth clamping plate 47. The middle part of one side of the first frame body 33 is fixedly connected with a second frame body 36. Both ends of the second frame body 36 are fixedly connected with fourth sliding rods 38. Both sides of the fourth sliding rod 38 are slidably connected with first clamping plates 39. One side of the first clamping plate 39 is fixedly connected with a fifth sliding rod 43. The fifth sliding rod 43 is slidably connected with a second clamping plate 40. Both ends of the first frame body 33 are rotatably provided with a second bidirectional threaded rod 48. Both sides of the second bidirectional threaded rod 48 are threadedly connected with one side of the third clamping plate 45. One end of the first frame body 33 is fixedly connected with a seventh motor 34. The output end of the seventh motor 34 is fixedly connected with one end of the second bidirectional threaded rod 48. One end of the fourth clamping plate 47 is threadedly connected with a sixth threaded rod 46. One side of the third clamping plate 45 is fixedly connected with a tenth motor 44. The output end of the tenth motor 44 is fixedly connected with one end of the sixth threaded rod 46.

[0044] Both ends of the second frame body 36 are rotatably provided with a first bidirectional threaded rod 37. Both sides of the first bidirectional threaded rod 37 are threadedly connected with one end of the first clamping plate 39. One end of the second frame body 36 is fixedly connected with an eighth motor 35. The output end of the eighth motor 35 is fixedly connected with one end of the first bidirectional threaded rod 37. One side of the first clamping plate 39 is rotatably provided with a fifth threaded rod 42. The fifth threaded rod 42 is threadedly connected with one end of the second clamping plate 40. One side of the first clamping plate 39 is fixedly connected with a ninth motor 41. The output end of the ninth motor 41 is fixedly connected with one end of the fifth threaded rod 42.

[0045] Specifically, place two V-shaped plates between the clamping plates one 39 and two 40 on both sides, and align the included angle of the V-shaped plates with the included angles of the clamping plates one 39 and two 40. Then, drive the rotation of the threaded rod five 42 by the motor nine 41 to move the clamping plate two 40, so that the V-shaped plates can be clamped by the clamping plates one 39 and two 40. Then, place two rectangular plates between the clamping plates four 47 and three 45, and drive the rotation of the threaded rod six 46 by the motor ten 44 to move the clamping plate four 47, so that the rectangular plates can be clamped by the clamping plates three 45 and four 47. Moreover, the middle area of the rectangular plates is clamped by the clamping plates four 47 and three 45, and the distances between the two end faces on both sides of the clamping plate four 47 and the two end faces of the rectangular plates are the same. Then, drive the rotation of the double-threaded rod two 48 by the motor seven 34 and drive the rotation of the double-threaded rod one 37 by the motor eight 35, so that the two clamping plates three 45 approach each other, and the two clamping plates one 39 approach each other until the V-shaped plates are in contact with the edges of the rectangular plates. At this time, the two V-shaped plates and the two rectangular plates form a complete hexagonal prism, and the joints of the V-shaped plates and the rectangular plates can be welded, thus realizing the positioning and assembly effects of the two V-shaped plates and the two rectangular plates, and further ensuring the stability during the welding process.

[0046] In this embodiment, as Figures 1 - 8 , Figure 10 shown, on one side of the right end face of the support column 2, there is a fixedly connected motor one 3, and the output end of the motor one 3 is fixedly connected to the middle part on one side of the frame one 33.

[0047] On one side of the threaded block two 28, there is a fixedly connected electric push rod two 29, and the piston end of the electric push rod two 29 is fixedly connected to one side of the mounting block 31. On one side of the threaded block two 28, there is a threaded connection with a threaded rod three 16. One end of the threaded rod three 16 is rotatably arranged on the threaded block one 13. On one side of the threaded block one 13, there is a fixedly connected motor five 14, and the output end of the motor five 14 is fixedly connected to one end of the threaded rod three 16.

[0048] On one side of the threaded block one 13, there is a fixedly connected electric push rod one 17, and the piston end of the electric push rod one 17 is fixedly connected to one side of the plate body two 19.

[0049] One end of the threaded block one 13 is in threaded connection with a threaded rod four 20. Both ends of the threaded rod four 20 are rotatably arranged on the slag collection box 8. One end of the slag collection box 8 is fixedly connected to a motor three 9, and the output end of the motor three 9 is fixedly connected to one end of the threaded rod four 20.

[0050] Inside the slag collection box 8, there is a slidably connected push block 10. The bottom of the push block 10 is in contact with the inner bottom of the slag collection box 8. One end of the push block 10 is in threaded connection with a threaded rod two 12. Both ends of the threaded rod two 12 are rotatably arranged on the slag collection box 8. One end of the slag collection box 8 is fixedly connected to a motor four 11, and the output end of the motor four 11 is fixedly connected to one end of the threaded rod two 12.

[0051] One end of the lower side of the sliding column 6 is threadedly connected to the first threaded rod 5. Both ends of the first threaded rod 5 are rotatably arranged on the base 1. One side of the upper end surface of the base 1 is fixedly connected to the second motor 4, and the output end of the second motor 4 is fixedly connected to one end of the first threaded rod 5.

[0052] One side of the right end surface of the third plate body 24 is rotatably provided with a sliding groove rod 21. The guide post 22 is inserted into the sliding groove of the sliding groove rod 21 and is slidably connected thereto. One side of the right end surface of the third plate body 24 is fixedly connected to the sixth motor 23, and the output end of the sixth motor 23 is fixedly connected to one end of the sliding groove rod 21.

[0053] Specifically, during the use of the existing assembly and welding device for the crane boom of a truck-mounted crane, since it is necessary to weld the joint between the V-shaped plate and the rectangular plate, during the welding process, the welding slag generated will splash to the area outside the weld seam. This not only easily pollutes the surrounding environment, but also causes the welding slag to adhere to the inner and outer surfaces of the boom, affecting the appearance quality of the boom. Moreover, the welding slag may be relatively scattered, and it is time-consuming and laborious to clean up later.

[0054] Therefore, to solve the above problems, when in use in this embodiment, after the V-shaped plate and the rectangular plate are fixed and assembled into a complete hexagonal prism boom, the second motor 4 is used to drive the first threaded rod 5 to rotate, so that the sliding column 6 slides, and the slag collecting box 8 moves closer to the boom. And since the right end surface of the boom is flush with the right end surface of the slag collecting box 8, and the front and rear edges of the first plate body 7 are flush with the slag collecting box 8, when the slag collecting box 8 is attached to the boom, the first plate body 7 is also attached to the boom, and the included angle on one side of the third plate body 24 fits the included angle of the boom. According to the length of the boom, the third motor 9 is used to drive the fourth threaded rod 20 to rotate, so that the first threaded block 13 moves horizontally to adjust the position of the second plate body 19 until the left end surface of the second plate body 19 is flush with the left end surface of the boom, and the first electric push rod 17 is used to drive the second plate body 19 to move closer to the boom, so that the included angle on one side of the second plate body 19 fits the included angle on the left side of the boom. At this time, under the action of the slag collecting box 8, the first plate body 7, the second plate body 19, and the third plate body 24, the weld area can be surrounded. Then, the second electric push rod 29 is used to drive the mounting block 31 to move, so that the welding torch 32 approaches the weld and welding work is carried out. At the same time, the fifth motor 14 is used to drive the third threaded rod 16 to rotate, so that the second threaded block 28 moves horizontally to change the horizontal position of the welding torch 32, so that the joint can be welded evenly. The welding slag splashed during the welding process will be intercepted by the slag collecting box 8, the first plate body 7, the second plate body 19, and the third plate body 24, and the welding slag will fall into the slag collecting box 8 under the action of gravity, thus avoiding the situation that the welding slag splashes to the area outside the weld seam, ensuring the cleanliness of the surrounding environment and the inner and outer surfaces of the boom, improving the appearance quality of the boom. And since the welding slag is only concentrated in the surrounded area, it is more convenient and labor-saving to clean up later. Since there are four weld seams, the boom can be rotated by the first motor 3 to make the weld seams in different positions in the surrounded area.

[0055] In order to facilitate the workers to observe the welding condition and facilitate the movement of the welding torch 32 to the weld area, when surrounding the weld, it is necessary to keep a certain distance between the first plate 7, the slag collection box 8 and the weld, so as to facilitate the workers to observe the welding area through the gap between the first plate 7 and the slag collection box 8, and facilitate the movement of the welding torch 32 in the weld area. Since there is a certain distance between the first plate 7, the slag collection box 8 and the weld, a V-shaped area will be generated between the first plate 7 and the slag collection box 8. During the welding process, although some welding slag will fall into the slag collection box 8 under the action of gravity, some welding slag has strong adhesion and will still adhere to the V-shaped area. When the jib rotates, the welding slag in this area will slide along with the rotation of the jib to the non-weld area of the jib, thus affecting the appearance quality of the jib. Therefore, in order to avoid this situation, after welding is completed at one weld, the second plate 19 and the welding torch 32 are driven away from the weld. By driving the chute rod 21 to rotate with the sixth motor 23, the guide post 22 can be moved along the V-shaped groove 27. At the same time, the sliding sleeve 26 slides on the limiting rod 25, and the bottom of the limiting rod 25 slides on the slag collection box 8, so that the first plate 7 can move along the V-shaped track while maintaining a straight state, and the edge of the first plate 7 can be used to scrape the welding slag remaining in the V-shaped area until the first plate 7 fits with the upper end surface of the slag collection box 8. At this time, the welding slag in the V-shaped area has been scraped into the slag collection box 8, and the cleaning of the welding slag in the V-shaped area can be realized, thus avoiding the situation that when the jib rotates, the welding slag slides along with the rotation of the jib to the non-weld area of the jib, which in turn affects the appearance quality of the jib;

[0056] After welding is completed at the four welds of the jib, the jib is removed. In order to ensure the subsequent welding slag collection effect of the slag collection box 8, it is necessary to clean the welding slag in the slag collection box 8. Since the jib is relatively long, the length of the slag collection box 8 is also relatively long. When the welding slag is distributed at various positions inside the slag collection box 8, it will increase the difficulty for the workers to clean the welding slag inside the slag collection box 8. Moreover, even if the slag collection box 8 is directly dumped, a relatively long receiving container is required for receiving, which is rather cumbersome. Therefore, in order to avoid this situation, after a certain amount of welding slag has accumulated inside the slag collection box 8, the fourth motor 11 is used to drive the second threaded rod 12 to rotate, so that the push block 10 moves horizontally from left to right to push the welding slag inside the slag collection box 8 to the right until the welding slag is concentrated at the right end of the slag collection box 8. The welding slag is concentrated, and the workers can easily clean the welding slag inside the slag collection box 8, thus avoiding the situation that when cleaning the welding slag inside the slag collection box 8, due to the welding slag being distributed at various positions inside the slag collection box 8, the cleaning is rather cumbersome.

[0057] Working principle: Place two V-shaped plates between the clamping plates one 39 and the clamping plates two 40 on both sides, and align the included angle of the V-shaped plates with the included angles of the clamping plates one 39 and the clamping plates two 40. Then, drive the rotation of the threaded rod five 42 by the motor nine 41 to move the clamping plates two 40, so that the V-shaped plates can be clamped by the clamping plates one 39 and the clamping plates two 40. Then, place two rectangular plates between the clamping plates four 47 and the clamping plates three 45, and drive the rotation of the threaded rod six 46 by the motor ten 44 to move the clamping plates four 47, so that the rectangular plates can be clamped by the clamping plates three 45 and the clamping plates four 47. Moreover, the middle area of the rectangular plate is clamped by the clamping plates four 47 and the clamping plates three 45, and the distances between the two end faces on both sides of the clamping plates four 47 and the two end faces of the rectangular plate are the same. Then, drive the rotation of the bidirectional threaded rod two 48 by the motor seven 34 and drive the rotation of the bidirectional threaded rod one 37 by the motor eight 35, so that the two clamping plates three 45 approach each other, and the two clamping plates one 39 approach each other until the V-shaped plates are in contact with the edges of the rectangular plates. At this time, the two V-shaped plates and the two rectangular plates form a complete hexagonal prism, and the joints of the V-shaped plates and the rectangular plates can be welded, thus realizing the positioning and assembly effects of the two V-shaped plates and the two rectangular plates, and further ensuring the stability during the welding process. When the V-shaped plates and the rectangular plates are fixed and assembled into a complete hexagonal prism boom, drive the rotation of the threaded rod one 5 by the motor two 4 to slide the sliding column 6, so that the slag collecting box 8 approaches the boom. Moreover, since the right end face of the boom is flush with the right end face of the slag collecting box 8, and the front and rear edges of the plate body one 7 are flush with the slag collecting box 8, when the slag collecting box 8 is in contact with the boom, the plate body one 7 is also in contact with the boom. And the included angle on one side of the plate body three 24 is in contact with the included angle of the boom. According to the length of the boom, drive the rotation of the threaded rod four 20 by the motor three 9 to horizontally move the thread block one 13 and adjust the position of the plate body two 19 until the left end face of the plate body two 19 is flush with the left end face of the boom. Then, drive the plate body two 19 to approach the boom by the electric push rod one 17, so that the included angle on one side of the plate body two 19 is in contact with the included angle on the left side of the boom. At this time, the weld area can be surrounded by the slag collecting box 8, the plate body one 7, the plate body two 19, and the plate body three 24. Then, drive the movement of the mounting block 31 by the electric push rod two 29 to make the welding torch 32 approach the weld and carry out the welding work. At the same time, drive the rotation of the threaded rod three 16 by the motor five 14 to horizontally move the thread block two 28 to change the horizontal position of the welding torch 32, so that the joint can be welded evenly. The welding slag splashed during the welding process will be intercepted by the slag collecting box 8, the plate body one 7, the plate body two 19, and the plate body three 24, and the welding slag will fall into the slag collecting box 8 under the action of gravity, thus avoiding the situation that the welding slag splashes to the area outside the weld, ensuring the cleanliness of the surrounding environment and the inner and outer surfaces of the boom, improving the appearance quality of the boom. Moreover, since the welding slag is only concentrated in the surrounded area, it is more convenient and labor-saving to clean up later. Since there are four welds, the boom can be rotated by the motor one 3 to make the welds in different positions be in the surrounded area;In order to facilitate the workers to observe the welding condition and to facilitate the movement of the welding torch 32 to the weld area, when surrounding the weld, it is necessary to keep a certain distance between the first plate 7, the slag collecting box 8 and the weld, so as to facilitate the workers to observe the welding area through the gap between the first plate 7 and the slag collecting box 8, and to facilitate the movement of the welding torch 32 in the weld area. Since there is a certain distance between the first plate 7, the slag collecting box 8 and the weld, a V-shaped area will be formed between the first plate 7 and the slag collecting box 8. During the welding process, although some welding slag will fall into the slag collecting box 8 under the action of gravity, some welding slag has strong adhesion and will still adhere to the V-shaped area. When the jib rotates, the welding slag in this area will slide along with the rotation of the jib to the non-weld area of the jib, thus affecting the appearance quality of the jib. Therefore, to avoid this situation, after welding is completed at one weld, the second plate 19 and the welding torch 32 are driven away from the weld. By driving the chute rod 21 to rotate with the sixth motor 23, the guide post 22 can be moved along the V-shaped groove 27. At the same time, the sliding sleeve 26 slides on the limiting rod 25, and the bottom of the limiting rod 25 slides on the slag collecting box 8, so that the first plate 7 can move along the V-shaped track while keeping a flat state. Then, the edge of the first plate 7 can be used to scrape the residual welding slag in the V-shaped area until the first plate 7 fits with the upper end surface of the slag collecting box 8. At this time, the welding slag in the V-shaped area has been scraped into the slag collecting box 8, thus realizing the cleaning of the welding slag in the V-shaped area, and avoiding the situation that when the jib rotates, the welding slag slides along with the rotation of the jib to the non-weld area of the jib, which further affects the appearance quality of the jib. After welding is completed at all four welds of the jib, the jib is removed. In order to ensure the subsequent welding slag collection effect of the slag collecting box 8, it is necessary to clean the welding slag in the slag collecting box 8. Since the jib is relatively long, the length of the slag collecting box 8 is also relatively long. When the welding slag is distributed at various positions inside the slag collecting box 8, it will increase the difficulty for the workers to clean the welding slag inside the slag collecting box 8. Moreover, even if the slag collecting box 8 is directly dumped, a relatively long receiving container is required for receiving, which is rather cumbersome. Therefore, to avoid this situation, after a certain amount of welding slag has accumulated inside the slag collecting box 8, the second screw rod 12 is driven to rotate with the fourth motor 11, so that the push block 10 moves horizontally from left to right to push the welding slag inside the slag collecting box 8 to the right until the welding slag is concentrated at the right end of the slag collecting box 8. After the welding slag is concentrated, the workers can easily clean the welding slag inside the slag collecting box 8, thus avoiding the cumbersome cleaning situation caused by the welding slag being distributed at various positions inside the slag collecting box 8 when cleaning the welding slag inside the slag collecting box 8.;

[0058] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted crane arm assembly welding device, comprising a base (1), characterized in that: The base (1) is provided with a clamping mechanism for fixing the two V-shaped plates and the two rectangular plates; The base (1) is also provided with a V-shaped area surrounding mechanism for intercepting welding slag generated during the welding process; The V-shaped area surrounding mechanism comprises a sliding column (6) slidably connected to one side of the upper end surface of the base (1); a slag collecting box (8) is fixedly connected to the upper end of the sliding column (6); a plate body (24) is fixedly connected to the right end surface of the slag collecting box (8); a limiting rod (25) is slidably connected to the right end surface of the slag collecting box (8); a sliding sleeve (26) is sleeved on and slidably connected to the limiting rod (25); a guide column (22) is fixedly connected to one side of the sliding sleeve (26); a V-shaped groove (27) is provided on the plate body (24); the guide column (22) passes through the V-shaped groove (27) and can slide at the V-shaped groove (27); the guide column (22) is The end is fixedly connected with a plate body 1 (7); one side of the lower end surface of the slag collecting box (8) is slidably connected with a thread block 1 (13); one side of the thread block 1 (13) is slidably connected with two slide rods 2 (18); one end of the slide rod 2 (18) is fixedly connected with a plate body 2 (19); one side of the thread block 1 (13) is fixedly connected with a slide rod 1 (15); the slide rod 1 (15) is slidably connected with a thread block 2 (28); one side of the thread block 2 (28) is slidably connected with two slide rods 3 (30); one end of the slide rod 3 (30) is fixedly connected with a mounting block (31); one side of the mounting block (31) is fixedly connected with a welding gun (32); the thread block 2 ( One side of the threaded block (28) is fixedly connected with an electric push rod 2 (29), the piston end of the electric push rod 2 (29) is fixedly connected to one side of the mounting block (31), one side of the threaded block (28) is threadedly connected with a threaded rod 3 (16), one end of the threaded rod 3 (16) is rotatably arranged on the threaded block (13), one side of the threaded block (13) is fixedly connected with a motor 5 (14), the output end of the motor 5 (14) is fixedly connected to one end of the threaded rod 3 (16), one side of the threaded block (13) is fixedly connected with an electric push rod 1 (17), the piston end of the electric push rod 1 (17) is fixedly connected to one side of the plate body 2 (19), and the screw One end of the pattern block 1 (13) is threadedly connected to a threaded rod 4 (20), both ends of the threaded rod 4 (20) are rotatably arranged on the slag collecting box (8), one end of the slag collecting box (8) is fixedly connected to a motor 3 (9), the output end of the motor 3 (9) is fixedly connected to one end of the threaded rod 4 (20), a slide rod (21) is rotatably arranged on one side of the right end surface of the plate body 3 (24), the guide column (22) is inserted into the slide groove of the slide rod (21) and is slidably connected thereto, a motor 6 (23) is fixedly connected to one side of the right end surface of the plate body 3 (24), the output end of the motor 6 (23) is fixedly connected to one end of the slide rod (21).

2. The vehicle-mounted crane arm assembly welding device according to claim 1, characterized in that: The clamping mechanism comprises a pillar (2) fixedly connected to one side of the upper end surface of the base (1); a frame body (33) is rotatably provided on one side of the upper end of the pillar (2); two ends of the frame body (33) are fixedly connected to sliding rods (49); two sides of the sliding rods (49) are slidably connected to clamp plates (45); one side of the clamp plates (45) is slidably connected to clamp plates (47); a middle part of one side of the frame body (33) is fixedly connected to a frame body (36); two ends of the frame body (36) are fixedly connected to sliding rods (38); two sides of the sliding rods (38) are slidably connected to clamp plates (39); one side of the clamp plates (39) is fixedly connected to Slide rod five (43), the slide rod five (43) is slidably connected with clamp plate two (40), two ends of the frame body one (33) are rotatably provided with bidirectional threaded rod two (48), both sides of the bidirectional threaded rod two (48) are threadedly connected with one side of clamp plate three (45), one end of the frame body one (33) is fixedly connected with motor seven (34), the output end of motor seven (34) is fixedly connected with one end of bidirectional threaded rod two (48), one end of clamp plate four (47) is threadedly connected with threaded rod six (46), one side of clamp plate three (45) is fixedly connected with motor ten (44), the output end of motor ten (44) is fixedly connected with one end of threaded rod six (46).

3. The vehicle-mounted crane arm assembly welding device according to claim 2, characterized in that: Two ends of the frame body 2 (36) are rotatably provided with a bidirectional threaded rod 1 (37), and both sides of the bidirectional threaded rod 1 (37) are threadedly connected to one end of a clamping plate 1 (39). One end of the frame body 2 (36) is fixedly connected with a motor 8 (35), and the output end of the motor 8 (35) is fixedly connected to one end of the bidirectional threaded rod 1 (37). One side of the clamping plate 1 (39) is rotatably provided with a threaded rod 5 (42), and the threaded rod 5 (42) is threadedly connected to one end of the clamping plate 2 (40). One side of the clamping plate 1 (39) is fixedly connected with a motor 9 (41), and the output end of the motor 9 (41) is fixedly connected to one end of the threaded rod 5 (42).

4. The vehicle-mounted crane arm assembly welding device according to claim 2, characterized in that: A motor (3) is fixedly connected to one side of the right end surface of the support (2), and an output end of the motor (3) is fixedly connected to the middle part of one side of the frame (33).

5. The vehicle-mounted crane arm assembly welding device according to claim 1, characterized in that: A push block (10) is slidably connected to the inner side of the slag collecting box (8), the bottom of the push block (10) is in contact with the inner bottom of the slag collecting box (8), one end of the push block (10) is threadedly connected to a second threaded rod (12), both ends of the second threaded rod (12) are rotatably arranged on the slag collecting box (8), one end of the slag collecting box (8) is fixedly connected to a fourth motor (11), and the output end of the fourth motor (11) is fixedly connected to one end of the second threaded rod (12).

6. The vehicle-mounted crane arm assembly welding device according to claim 1, characterized in that: A threaded rod (5) is threadedly connected to one side of the lower end of the slide column (6); both ends of the threaded rod (5) are rotatably arranged on the base (1); a motor (4) is fixedly connected to one side of the upper end surface of the base (1); and an output end of the motor (4) is fixedly connected to one end of the threaded rod (5).

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