Trailer hopper stand column welding auxiliary device and stand column welding method

Abstract

The invention provides a trailer hopper stand column welding auxiliary device and method. The trailer hopper stand column welding auxiliary device comprises a workbench, a movable base, a plurality of clamping assemblies and a plurality of limiting components. The workbench is used for supporting and fixing the car hopper; the movable seat is arranged above the workbench; a rotating disc is rotationally connected to the moving seat in the vertical direction; the multiple clamping assemblies are arranged on the lower side of the rotating disc at intervals in the circumferential direction of the rotating disc, and each clamping assembly is used for being connected with the corresponding stand column and is in sliding connection with the rotating disc; the multiple limiting components are correspondingly arranged on the multiple clamping assemblies, and each limiting component is connected with the corresponding clamping assembly through a separable structure. When the limiting component is separated from the clamping assembly, the limiting component can fall to be supported on the surface of the car hopper and / or the upper side face of the workbench and can be connected with the stand column so as to limit the stand column to move relative to the car hopper. According to the trailer hopper stand column welding auxiliary device and method, the welding efficiency of the stand column can be improved, and the perpendicularity between the stand column and the trailer hopper is high.

Description

Technical Field

[0001] The invention belongs to the technical field of trailer production, and more specifically, relates to a trailer bucket column welding auxiliary device and a column welding method. Background Art

[0002] A trailer is a vehicle towed by a car but without its own power drive device. It is made of metal profiles assembled and welded together and is an important type of vehicle for road transportation. Using trailers for transportation is the most effective and simple means to improve economic efficiency. It has the advantages of speed, mobility, flexibility and safety. Trailers are mainly made of a variety of metal profiles assembled and welded together, and need to go through processes such as chassis assembly welding, column welding and fence installation.

[0003] At present, common trailers need to weld multiple columns on the truck bed. When welding the columns, the position where the columns are to be installed must be measured first, and then the staff needs to stand them upright by hand at the installation position. Finally, the staff welds the columns to the truck bed together. Multiple measurements and adjustments are required during welding to ensure the verticality between the columns and the chassis.

[0004] The inventors found that the existing column welding process often requires the cooperation of multiple workers, and after the column welding is completed, due to factors such as manual measurement errors and welding stress, the verticality between the column and the chassis is poor, affecting the subsequent installation of the fence. Summary of the invention

[0005] The purpose of the present application is to provide a trailer bucket column welding auxiliary device and column welding method, so as to solve the technical problem that in the prior art, during the welding process of the bucket column, the column is easily affected by factors such as manual measurement without a vehicle and welding stress, which easily leads to poor verticality between the column and the chassis.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a trailer bucket column welding auxiliary device, comprising: A workbench, used for supporting and fixing the bucket so that the length direction of the bucket is parallel to the front-rear direction; A movable seat is arranged above the workbench and is transmission-connected with a horizontal driving member and a vertical driving member so that the movable seat can move in the front-back direction and the up-down direction relative to the workbench; a turntable is rotationally connected to the movable seat in the up-down direction, and the turntable is transmission-connected with the rotation driving member; A plurality of clamping assemblies are arranged at intervals along the circumference of the turntable on the lower side of the turntable, wherein each of the clamping assemblies is used to connect with the column and is slidably connected with the turntable; each of the clamping assemblies is drivingly connected to a linear drive member so that the clamping assembly can move toward or away from the central axis of the turntable; and A plurality of limiting members are arranged one by one on the plurality of clamping assemblies, and each of the limiting members is connected to the corresponding clamping assembly via a detachable structure; when the limiting member is separated from the clamping assembly, the limiting member can fall to the surface supported by the truck bucket and / or the upper side of the workbench, and can also be connected with the column to limit the movement of the column relative to the truck bucket.

[0007] Preferably, the clamping assembly comprises: A sleeve is slidably connected to the lower side of the turntable and is hollow inside and open toward the lower side; the interior of the sleeve is used for the upper end of the column to be inserted, and the inner wall of the sleeve has a plurality of clamping plates arranged around the column and made of elastic material; A lifting plate is slidably connected to the inside of the sleeve along the axial direction of the sleeve and is located on the side of the clamping plate facing away from the opening end of the sleeve; the lifting plate has a plurality of transmission parts extending toward the lower side and corresponding to the plurality of clamping plates one by one; Among them, the lifting plate is transmission-connected with a lifting drive component for driving it to move in the up and down directions relative to the sleeve; and, in the direction of the clamping plate toward the central axis of the sleeve, the clamping plate is inclined toward the upper side, so that when the lifting drive component drives the lifting plate to move downward, the transmission part pushes the clamping plate to cause the clamping plate to elastically deform until it abuts against the outer wall of the column.

[0008] Preferably, the lifting drive component comprises: A driving screw rod is coaxially disposed inside the sleeve and is rotationally connected to the sleeve in the up-and-down direction and is threadedly connected to the lifting plate; and The first rotating motor is fixedly arranged on the sleeve and is drivingly connected with the driving screw rod so that the driving screw rod rotates and the lifting plate moves along the axial direction of the sleeve.

[0009] Preferably, the limiting member comprises: A hoop is slidably mounted on the sleeve in the up-down direction and connected to the sleeve through the detachable structure; the sleeve has a plurality of telescopic legs arranged at intervals along its circumference, and each of the telescopic legs is used to support the upper side of the workbench or the surface of the bucket; and An air bag is arranged on the inner peripheral wall of the hoop to form an annular structure suitable for being sleeved on the outer periphery of the column; When the airbag is inflated, the airbag can expand and connect with the sleeve or the column.

[0010] Preferably, the detachable structure comprises: A plurality of clamping posts are arranged at intervals on the upper end surface of the ferrule along the circumferential direction of the ferrule, each of the clamping posts extends upward and has an anti-slip portion extending radially outward; and A plurality of mounting holes are arranged at intervals along the circumference of the sleeve, corresponding to the plurality of clamping columns one by one; each of the mounting holes is communicated with the interior of the sleeve, and a blocking plate is slidably inserted therein; One end of the blocking plate extends out of the sleeve, and the extended end of the blocking plate has a groove that penetrates in the up-down direction, so that the corresponding clamping column can be embedded in the groove and the anti-slip portion can be supported on the blocking plate; In addition, the sleeve has a synchronous driving component in transmission connection with the plurality of blocking plates; the synchronous driving component can drive each blocking plate to move toward the sleeve, so that the clamping column withdraws from the groove and the anti-slip portion is separated from the blocking plate.

[0011] Preferably, the clamping columns are provided in two pieces, and the corresponding mounting holes and the blocking plates are provided in two pieces; the synchronous driving component comprises: Two racks are disposed in the sleeve and are connected to the two blocking plates in a one-to-one correspondence, and each of the racks extends along the sliding direction of the blocking plate; and A second rotating motor is fixedly disposed in the sleeve, and a power output end thereof is coaxially connected to a driving gear; The driving gear is meshed with the two racks, so that when the driving gear rotates, the two racks move toward each other or away from each other.

[0012] Preferably, the hoop comprises: Two separate hoops hinged to each other form an annular structure suitable for wrapping around the outer periphery of the sleeve or the column; One of the split hoops has a plurality of first thread grooves, and the other split hoops has a plurality of alignment holes corresponding to the plurality of first thread grooves one by one, and each of the alignment holes is inserted with a first bolt suitable for threaded connection with the corresponding first thread groove; Furthermore, the airbag adopts a strip structure, and the two ends of the airbag are respectively connected to the swing ends of the two split hoops.

[0013] Preferably, the telescopic legs include: A fixed section, which has a hollow interior and is fixedly connected to the lower side of the hoop; and A telescopic joint is slidably inserted into the fixed joint and is used to connect with the upper side of the workbench or the surface of the truck bucket; Among them, a plurality of second thread grooves communicating with the interior of the fixed joint are provided on the side wall of the fixed joint, and each of the second thread grooves is threadedly connected with a second bolt suitable for abutting against the outer wall of the telescopic joint.

[0014] Preferably, a plurality of pulleys are provided between the hoop and the sleeve, and each of the pulleys is used to be connected with the sleeve or the column; and an elastic reset member is also provided between each of the pulleys and the hoop.

[0015] In the embodiment of the present application, the workbench is used to support the truck bucket. When the truck bucket needs to be welded with a column, the staff lifts the truck bucket to the upper side of the workbench, and then fixes it through the fixing parts on the workbench so that the length direction of the truck bucket is parallel to the front-to-back direction; by simultaneously controlling the horizontal drive member and the vertical drive member, the movement of the moving seat in the front-to-back direction and the up-and-down direction can be realized; the rotating drive member can drive the turntable to rotate, so as to realize that one of the clamping components is directed toward the area of ​​the truck bucket where the column is to be welded; then the column clamped by the clamping component is connected to the upper side of the truck bucket under the drive of the moving seat; after the welding of the column is completed, the corresponding limit component is released through the detachable structure so that the limit component is connected to the column to fix the position of the column to prevent the column from being deflected due to welding stress; finally, the clamping component is controlled to separate from the column to complete the welding and positioning of the column.

[0016] Compared with the prior art, the trailer bed column welding auxiliary device provided in the embodiment of the present application can realize the automation of column welding installation. The cooperation of the clamping assembly and the movable seat can realize the precise positioning of the column, reducing the error of manual measurement. After the welding is completed, the limit assembly is released to connect with the column, which can improve the verticality between the column and the bed, improve the welding quality of the column, and facilitate the subsequent installation of the fence.

[0017] The technical solution adopted in the present application also provides a column welding method, based on the trailer bucket column welding auxiliary device proposed in any of the above items, comprising the following steps: A. Fixing the truck bucket to the upper side of the workbench; B. driving the movable seat to move by the horizontal driving member so that the movable seat is located on the left or right side of the column installation position; C. driving the turntable to rotate by the rotation driving member, and driving the clamping assembly to move by one of the linear driving members, so that the corresponding column is located directly above the installation position; D. driving the movable seat downward by the vertical driving member until the bottom end of the column is connected to the installation position; E. welding the column and the truck bed; F. By controlling the detachable structure, the corresponding limiting member is separated from the clamping assembly, and the limiting member falls onto the bucket and / or the workbench and connects with the column to fix the column relative to the bucket; G. Repeat steps B to F to complete the welding and fixing of the plurality of columns; H. Remove each of the stop members.

[0018] The beneficial effects of the column welding method provided in this embodiment are the same as the beneficial effects of the aforementioned trailer bucket column welding auxiliary device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of the trailer bucket column welding auxiliary device provided by an embodiment of the present invention Figure 1 ; Figure 2 Schematic diagram of the explosion structure of the trailer bucket column welding auxiliary device provided by the embodiment of the present invention Figure 2 (For the convenience of illustration, some structures are hidden); Figure 3 A schematic diagram of the three-dimensional structure of a clamping assembly provided in an embodiment of the present invention; Figure 4 for Figure 3 The cross-sectional structure of the clamping assembly shown is shown Figure 1 ; Figure 5 for Figure 3 The cross-sectional structure of the clamping assembly shown is shown Figure 2 ; Figure 6 for Figure 1 Schematic diagram of the enlarged structure of the middle I region; Figure 7 A schematic cross-sectional structure diagram of a position limiting component provided in an embodiment of the present invention; Figure 8 A schematic diagram of the three-dimensional structure of an airbag used in an embodiment of the present invention; Among them, the reference numerals in the figure are: 1. Workbench; 2. Moving seat; 21. Horizontal driving member; 22. Vertical driving member; 3. Turntable; 31. Rotation drive member; 4. Clamping assembly; 41. Sleeve; 411. Clamping plate; 42. Lifting plate; 421. Transmission unit; 43. Lifting drive member; 431. Driving screw; 432. First rotating motor; 44. Linear drive member; 5. Position limiting member; 51. Hoop; 511. Split hoop; 512. First bolt; 513. Pulley; 514. Elastic reset member; 52. Air bag; 521. Notch; 53. Telescopic leg; 531. Fixed joint; 532. Telescopic joint; 533. Second bolt; 54. Air pump; 6. Separable structure; 61. Clamping column; 611. Anti-slip portion; 62. Blocking plate; 621. Groove; 7. Synchronous driving member; 71. Rack; 72. Driving gear; 73. Second rotating motor; 8. Truck bed; 9. Pillar. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Please also read Figures 1 to 8 The trailer bucket column welding auxiliary device provided by the present application is now described. The trailer bucket column welding auxiliary device comprises a workbench 1, a movable seat 2, a plurality of clamping components 4 and a plurality of limiting components 5.

[0026] The workbench 1 is used to support and fix the bucket 8 so that the length direction of the bucket 8 is parallel to the front-rear direction, and the upper surface of the bucket 8 is leveled; the workbench 1 is provided with a cylinder or oil cylinder for fixing the bucket 8 to prevent the bucket 8 from shifting during the welding of the column 9.

[0027] The moving seat 2 is arranged above the workbench 1, and is transmission-connected with a horizontal driving component 21 and a vertical driving component 22, so that the moving seat 2 can move relative to the workbench 1 in the front-to-back direction and the up-and-down direction; the horizontal driving component 21 and the vertical driving component 22 are driving guide rails, and the moving seat 2 is connected to the workbench 1 through a horizontal beam and a vertical beam, and the driving guide rail responsible for driving in the front-to-back direction is arranged on the horizontal beam, and the driving guide rail responsible for driving in the up-and-down direction is arranged on the vertical beam; a turntable 3 is rotatably connected to the moving seat 2 in the up-and-down direction, and the turntable 3 is transmission-connected with a rotating driving component 31; the rotating driving component 31 adopts a servo motor, so that the rotation angle of the turntable 3 can be accurately controlled.

[0028] A plurality of clamping assemblies 4 are arranged at intervals along the circumference of the turntable 3 on the lower side of the turntable 3, wherein each clamping assembly 4 is used to connect with the column 9 and is slidably connected to the turntable 3; each clamping assembly 4 is transmission-connected to a linear drive member 44 so that the clamping assembly 4 can move toward or away from the central axis of the turntable 3; wherein the linear drive member 44 is a plurality of drive guide rails arranged on the turntable 3 at equal intervals along the circumference of the turntable 3, and the plurality of clamping assemblies 4 are slidably connected to the plurality of drive guide rails in a one-to-one correspondence, and the drive guide rails can drive the corresponding clamping assemblies 4 to move toward or away from the central axis of the turntable 3.

[0029] A plurality of limiting members 5 are arranged one by one on a plurality of clamping assemblies 4, and each limiting member 5 is connected to the corresponding clamping assembly 4 via a detachable structure 6; when the limiting member 5 is separated from the clamping assembly 4, the limiting member 5 can fall to the surface supported on the truck bucket 8 and / or the upper side of the workbench 1, and can also be connected to the column 9 to limit the movement of the column 9 relative to the truck bucket 8; wherein each limiting member 5 can also be installed on the corresponding clamping assembly 4 via the detachable structure 6 for recycling.

[0030] In the embodiment of the present application, the workbench 1 is used to support the truck bucket 8. When the truck bucket 8 needs to be welded with the column 9, the staff lifts the truck bucket 8 to the upper side of the workbench 1, and then fixes it through the fixing parts on the workbench 1 so that the length direction of the truck bucket 8 is parallel to the front-to-back direction; by simultaneously controlling the horizontal driving member 21 and the vertical driving member 22, the movement of the movable seat 2 in the front-to-back direction and the up-and-down direction can be realized; the rotating driving member 31 can drive the turntable 3 to rotate, so as to realize that one of the clamping components 4 is directed toward the area of ​​the truck bucket 8 where the column 9 is to be welded; then the column 9 clamped by the clamping component 4 is connected to the upper side surface of the truck bucket 8 under the drive of the moving seat 2; after the welding of the column 9 is completed, the corresponding limit component is released through the detachable structure 6, so that the limit component is connected with the column 9 to fix the position of the column 9 to prevent the column 9 from being deflected due to welding stress; finally, the clamping component 4 is controlled to separate from the column 9 to complete the welding and positioning of the column 9.

[0031] Compared with the prior art, the trailer bed column welding auxiliary device provided in the embodiment of the present application can realize the automation of the welding and installation of the column 9. The cooperation of the clamping assembly 4 and the movable seat 2 can realize the precise positioning of the column 9, reducing the error of manual measurement. After the welding is completed, the limit assembly is released to connect with the column 9, which can improve the verticality between the column 9 and the bed 8, improve the welding quality of the column 9, and facilitate the subsequent installation of the fence.

[0032] In some embodiments, please refer to Figures 1 to 4 As a specific implementation of the trailer bucket column welding auxiliary device provided by the present invention, the clamping assembly 4 includes a sleeve 41 and a lifting plate 42.

[0033] The sleeve 41 is slidably connected to the lower side of the turntable 3, and adopts a structure with a hollow interior and an opening toward the lower side; the interior of the sleeve 41 is used for the upper end of the column 9 to be inserted, and the inner wall of the sleeve 41 has a plurality of clamps 411 arranged around the column 9 and made of elastic material; the clamps 411 adopt a bent plate structure offset toward the center of the sleeve 41, and the lower end of each clamp 411 is connected to the lower opening of the sleeve 41.

[0034] The lifting plate 42 is connected to the inside of the sleeve 41 along the axial direction of the sleeve 41 and is located on the side of the clamping plate 411 facing away from the open end of the sleeve 41; the lifting plate 42 has a plurality of transmission parts 421 extending toward the lower side and corresponding to the plurality of clamping plates 411 one by one; each transmission part 421 has an inclined surface for inserting into the gap between the corresponding clamping plate 411 and the inner wall of the sleeve 41.

[0035] Among them, the lifting plate 42 is transmission-connected with a lifting drive component 43 for driving it to move in the up and down directions relative to the sleeve 41; and, in the direction of the clamping plate 411 toward the central axis of the sleeve 41, the clamping plate 411 is inclined toward the upper side, so that when the lifting drive component 43 drives the lifting plate 42 to move downward, the transmission part 421 pushes the clamping plate 411, causing the clamping plate 411 to elastically deform until it abuts against the outer wall of the column 9, thereby achieving the purpose of clamping the upper end of the column 9.

[0036] By adopting the above technical solution, the lifting plate 42 is driven up and down by the lifting driving component 43, so that the transmission part 421 pushes the corresponding clamping plate 411 to deform, thereby achieving the purpose of firmly clamping the column 9; compared with the traditional clamping claws, the use of the clamping plate 411 has a smaller overall volume of the clamping structure and a larger contact area with the column 9, thereby avoiding damage to the surface of the column 9 caused by the clamping part.

[0037] In some embodiments, please refer to Figures 1 to 4 As a specific implementation of the trailer bucket column welding auxiliary device provided by the present invention, the lifting drive component 43 includes a driving screw 431 and a first rotating motor 432.

[0038] The driving screw 431 is coaxially arranged inside the sleeve 41 , and is rotatably connected to the sleeve 41 in the up-and-down direction and is threadedly connected to the lifting plate 42 ; the lifting plate 42 has a threaded hole threadedly connected to the driving screw 431 .

[0039] The first rotating motor 432 is fixedly disposed on the sleeve 41 and is in transmission connection with the driving screw 431 . A transmission method can be adopted in which the output shaft of the first rotating motor 432 is directly connected to the driving screw 431 through a coupling, so that the driving screw 431 rotates and the lifting plate 42 moves axially along the sleeve 41 .

[0040] By adopting the above technical solution, the driving screw 431 and the lifting plate 42 together form a screw driving mechanism, which has the advantages of high transmission ratio and precise transmission distance; by controlling the forward and reverse rotation of the first rotating motor 432, the lifting plate 42 can be moved toward or away from the clamping plate 411.

[0041] In some embodiments, please refer to Figure 1 , Figure 6 , Figure 7 and Figure 8 As a specific implementation of the trailer bucket column welding auxiliary device provided by the present invention, the limiting component 5 includes a hoop 51 and an airbag 52.

[0042] The hoop 51 is slidably sleeved on the sleeve 41 in the up-down direction and is connected to the sleeve 41 via a detachable structure 6; the sleeve 41 has a plurality of telescopic legs 53 arranged at intervals along its circumference, and each telescopic leg 53 is used to support on the upper side of the workbench 1 or the surface of the truck bed 8; the bottom end of each telescopic leg 53 has a rubber buffer block.

[0043] The airbag 52 is arranged on the inner wall of the hoop 51 to form an annular structure suitable for being sleeved on the outer periphery of the column 9; an air pump 54 is also provided on the outer wall of the hoop 51, and the air pump 54 is connected to the hoop 51 through a bracket. The air pump 54 is connected to the airbag 52 through a pipe. By turning on or off the air pump 54, the inflation and deflation of the airbag 52 can be completed; the airbag 52 has a soft pad on the side facing the column 9 for connecting with the column 9, and the soft pad is used to protect the airbag 52 from damage and increase the friction between the airbag 52 and the column 9 to improve the fixing effect.

[0044] When the airbag 52 is inflated, the airbag 52 can expand and connect with the sleeve 41 or the column 9 .

[0045] By adopting the above technical solution, when the welding of the column 9 is completed and the weld has not cooled down, the thimble 51 is separated from the sleeve 41 through the detachable structure 6, and then the gas is introduced into the airbag 52 through the air pump 54 to expand the airbag 52 and clamp the column 9, and the multiple columns 9 under the thimble 51 are leveled to always keep the column 9 and the truck bed 8 vertical to avoid the column 9 from shifting under the action of welding stress; finally, when the weld of the column 9 is cooled down, the gas in the airbag 52 is released, and the thimble 51 and the airbag 52 are removed.

[0046] In some embodiments, please refer to Figures 1 to 7 As a specific implementation of the trailer bucket column welding auxiliary device provided by the present invention, the detachable structure 6 includes a plurality of clamping columns 61 and a plurality of mounting holes.

[0047] A plurality of clamping posts 61 are arranged at intervals on the upper end surface of the ferrule 51 along the circumferential direction of the ferrule 51 . Each clamping post 61 extends upward and has an anti-slip portion 611 extending radially outward.

[0048] A plurality of mounting holes are arranged at intervals along the circumference of the sleeve 41 , corresponding one-to-one to a plurality of clamping posts 61 ; each mounting hole is communicated with the interior of the sleeve 41 , and a blocking plate 62 is slidably inserted therein.

[0049] One end of the blocking plate 62 extends out of the sleeve 41, and the extended end of the blocking plate 62 has a groove 621 that penetrates in the up-down direction, so that the corresponding clamping column 61 can be embedded in the groove 621, and the anti-slip portion 611 can be supported on the blocking plate 62; In addition, the sleeve 41 has a synchronous drive component 7 that is transmission-connected to the multiple blocking plates 62 ; the synchronous drive component 7 can drive each blocking plate 62 to move toward the sleeve 41 , so that the clamping column 61 exits the groove 621 , and the anti-slip portion 611 is separated from the blocking plate 62 .

[0050] By adopting the above technical solution, by controlling the synchronous driving component 7 to drive each blocking plate 62 to move, it can be ensured that multiple clamping columns 61 and multiple blocking plates 62 can be separated synchronously, thereby improving the stability when the limiting component 5 and the clamping component 4 are separated.

[0051] In some embodiments, please refer to Figure 4 and Figure 5 As a specific embodiment of the trailer bucket column welding auxiliary device provided by the present invention, there are two clamping columns 61, and there are two corresponding mounting holes and blocking plates 62; the synchronous drive component 7 includes two racks 71 and a second rotating motor 73.

[0052] The two racks 71 are disposed in the sleeve 41 and are connected to the two blocking plates 62 in a one-to-one correspondence, and each rack 71 extends along the sliding direction of the blocking plate 62 .

[0053] The second rotating motor 73 is fixedly disposed in the sleeve 41 , and a driving gear 72 is coaxially connected to a power output end thereof.

[0054] The driving gear 72 is located between the two racks 71 , and the driving gear 72 is meshed with the two racks 71 , so that when the driving gear 72 rotates, the two racks 71 move toward or away from each other.

[0055] By adopting the above technical solution, the two racks 71 can be synchronously moved in opposite directions by rotating one gear, which has the advantages of simple structure and convenient maintenance.

[0056] In some embodiments, see Figure 1 , Figure 2 , Figure 6 and Figure 7 As a specific embodiment of the trailer bucket column welding auxiliary device provided by the present invention, the hoop 51 includes two split hoops 511 hinged to each other.

[0057] The two split hoops 511 hinged to each other form an annular structure suitable for wrapping around the outer circumference of the sleeve 41 or the column 9.

[0058] One of the split hoops 511 has a plurality of first thread grooves, and the other split hoops 511 has a plurality of alignment holes corresponding to the plurality of first thread grooves one by one, and each alignment hole is inserted with a first bolt 512 suitable for threaded connection with the corresponding first thread groove.

[0059] Furthermore, the airbag 52 adopts a strip structure, and both ends of the airbag 52 are respectively connected to the swing ends of the two split hoops 511 .

[0060] By adopting the above technical solution, after the column 9 is welded and positioned, the two split hoops 511 hinged to each other can be separated and opened by removing several first bolts 512. The airbag 52 also adopts a strip structure, so that the staff can easily remove the split hoop 511 from the column 9, which is convenient for subsequent maintenance and recycling, saving costs.

[0061] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 As a specific implementation of the trailer bucket column welding auxiliary device provided by the present invention, the telescopic leg 53 includes a fixed section 531 and a telescopic section 532.

[0062] The fixing section 531 has a hollow structure and is fixedly connected to the lower side of the hoop 51 .

[0063] The telescopic joint 532 is slidably inserted into the fixed joint 531 to connect with the upper side of the workbench 1 or the surface of the truck bucket 8 .

[0064] Among them, a plurality of second thread grooves connected to the interior of the fixed joint 531 are opened on the side wall, and each second thread groove is threadedly connected with a second bolt 533 suitable for abutting against the outer wall of the telescopic joint 532; the second bolt 533 can be a handle bolt, which can be conveniently tightened and loosened.

[0065] By adopting the above technical solution, the staff can achieve the leveling operation of the sleeve 51 by adjusting the extension length of the telescopic section 532 on each telescopic leg 53, that is, the purpose of adjusting the verticality between the column 9 and the truck bed 8 can be achieved.

[0066] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 As a specific embodiment of the trailer bucket column welding auxiliary device provided by the present invention, there are multiple pulleys 513 between the hoop 51 and the sleeve 41, and each pulley 513 is used to connect with the sleeve 41 or the column 9; an elastic reset member 514 is also provided between each pulley 513 and the hoop 51; the pulley 513 is slidably connected to the hoop 51 through a telescopic rod, and an elastic reset member 514 is provided between the telescopic rod and the hoop 51 for driving the pulley 513 to move toward the column 9 or the sleeve 41, and the elastic reset member 514 can be a compression spring.

[0067] By adopting the above technical solution, when the hoop 51 is separated from the clamping assembly 4 through the detachable structure 6 and falls, the multiple pulleys 513 can be adapted to roll with the sleeve 41 or the column 9 to prevent the hoop 51 from rubbing against the column 9 during the falling process, thereby preventing the surface of the column 9 from being scratched; it also ensures that the hoop 51 remains stable during the falling process.

[0068] The technical solution adopted in the present application also provides a column welding method, based on the trailer bucket column welding auxiliary device proposed in any of the above items, comprising the following steps: A. Fix the truck bed 8 to the upper side of the workbench 1; fix it by a pneumatic cylinder or an oil cylinder.

[0069] B. The movable seat 2 is driven to move by the horizontal driving member 21 so that the movable seat 2 is located on the left or right side of the installation position of the column 9.

[0070] C. The turntable 3 is driven to rotate by the rotation driving member 31, and the clamping assembly 4 is driven to move by one of the linear driving members 44, so that the corresponding column 9 is located directly above the installation position.

[0071] D. The movable seat 2 is driven downward by the vertical driving member 22 until the bottom end of the column 9 is connected with the installation position; after the column 9 is connected with the installation position, the vertical driving member 22 applies a downward force to the column 9 to press the column 9 to the installation position, reduce the gap between the column 9 and the truck bed 8, and improve the welding quality.

[0072] E. Welding the column 9 and the truck bed 8.

[0073] F. When the weld has just been welded and has not yet cooled, the corresponding limiting member 5 is separated from the clamping assembly 4 by controlling the detachable structure 6, and the limiting member 5 falls onto the truck bed 8 and / or the workbench 1 and connects with the column 9 to fix the column 9 relative to the truck bed 8.

[0074] G. Repeat steps B to F to complete the welding and fixing of multiple columns 9.

[0075] H. Remove each limiting member 5 to facilitate subsequent recycling.

[0076] The beneficial effects of the column welding method provided in this embodiment are the same as the beneficial effects of the aforementioned trailer bucket column welding auxiliary device, which will not be repeated here.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A trailer bucket column welding auxiliary device, characterized in that: include: A workbench, used for supporting and fixing the bucket so that the length direction of the bucket is parallel to the front-rear direction; A movable seat is arranged above the workbench and is transmission-connected with a horizontal driving member and a vertical driving member so that the movable seat can move in the front-back direction and the up-down direction relative to the workbench; a turntable is rotationally connected to the movable seat in the up-down direction, and the turntable is transmission-connected with the rotation driving member; A plurality of clamping assemblies are arranged at intervals along the circumference of the turntable on the lower side of the turntable, wherein each of the clamping assemblies is used to connect with the column and is slidably connected with the turntable; each of the clamping assemblies is transmission-connected to a linear drive member so that the clamping assembly can move toward or away from the central axis of the turntable; as well as A plurality of limiting members are arranged one by one on the plurality of clamping assemblies, and each of the limiting members is connected to the corresponding clamping assembly via a detachable structure; when the limiting member is separated from the clamping assembly, the limiting member can fall to the surface supported by the truck bucket and / or the upper side of the workbench, and can also be connected with the column to limit the movement of the column relative to the truck bucket.

2. The trailer bucket column welding auxiliary device according to claim 1, characterized in that: The clamping assembly comprises: A sleeve is slidably connected to the lower side of the turntable and is hollow inside and open toward the lower side; the interior of the sleeve is used for the upper end of the column to be inserted, and the inner wall of the sleeve has a plurality of clamping plates arranged around the column and made of elastic material; A lifting plate is slidably connected to the inside of the sleeve along the axial direction of the sleeve and is located on the side of the clamping plate facing away from the opening end of the sleeve; the lifting plate has a plurality of transmission parts extending toward the lower side and corresponding to the plurality of clamping plates one by one; Among them, the lifting plate is transmission-connected with a lifting drive component for driving it to move in the up and down directions relative to the sleeve; and, in the direction of the clamping plate toward the central axis of the sleeve, the clamping plate is inclined toward the upper side, so that when the lifting drive component drives the lifting plate to move downward, the transmission part pushes the clamping plate to cause the clamping plate to elastically deform until it abuts against the outer wall of the column.

3. The trailer bucket column welding auxiliary device according to claim 2, characterized in that: The lifting drive component comprises: A driving screw rod is coaxially disposed inside the sleeve and is rotationally connected to the sleeve in the up-and-down direction and is threadedly connected to the lifting plate; and The first rotating motor is fixedly arranged on the sleeve and is drivingly connected with the driving screw rod so that the driving screw rod rotates and the lifting plate moves along the axial direction of the sleeve.

4. The trailer bucket column welding auxiliary device according to claim 2 or 3, characterized in that: The limiting component comprises: A hoop is slidably mounted on the sleeve in the up-down direction and connected to the sleeve through the detachable structure; the sleeve has a plurality of telescopic legs arranged at intervals along its circumference, and each of the telescopic legs is used to support the upper side of the workbench or the surface of the bucket; and An air bag is arranged on the inner peripheral wall of the hoop to form an annular structure suitable for being sleeved on the outer periphery of the column; When the airbag is inflated, the airbag can expand and connect with the sleeve or the column.

5. The trailer bucket column welding auxiliary device according to claim 4, characterized in that: The detachable structure comprises: A plurality of clamping posts are arranged at intervals on the upper end surface of the ferrule along the circumferential direction of the ferrule, each of the clamping posts extends upward and has an anti-slip portion extending radially outward; and A plurality of mounting holes are arranged at intervals along the circumference of the sleeve, corresponding to the plurality of clamping columns one by one; each of the mounting holes is communicated with the interior of the sleeve, and a blocking plate is slidably inserted therein; One end of the blocking plate extends out of the sleeve, and the extended end of the blocking plate has a groove that penetrates in the up-down direction, so that the corresponding clamping column can be embedded in the groove and the anti-slip portion can be supported on the blocking plate; In addition, the sleeve has a synchronous driving component in transmission connection with the plurality of blocking plates; the synchronous driving component can drive each blocking plate to move toward the sleeve, so that the clamping column withdraws from the groove and the anti-slip portion is separated from the blocking plate.

6. The trailer bucket column welding auxiliary device according to claim 5, characterized in that: The clamping columns are provided with two, and the corresponding mounting holes and the blocking plates are provided with two each; the synchronous driving component comprises: Two racks are disposed in the sleeve and are connected to the two blocking plates in a one-to-one correspondence, and each of the racks extends along the sliding direction of the blocking plate; and A second rotating motor is fixedly disposed in the sleeve, and a power output end thereof is coaxially connected to a driving gear; The driving gear is meshed with the two racks, so that when the driving gear rotates, the two racks move toward each other or away from each other.

7. The trailer bucket column welding auxiliary device according to claim 4, characterized in that: The ferrule comprises: Two separate hoops hinged to each other form an annular structure suitable for wrapping around the outer periphery of the sleeve or the column; One of the split hoops has a plurality of first thread grooves, and the other split hoops has a plurality of alignment holes corresponding to the plurality of first thread grooves one by one, and each of the alignment holes is inserted with a first bolt suitable for threaded connection with the corresponding first thread groove; Furthermore, the airbag adopts a strip structure, and the two ends of the airbag are respectively connected to the swing ends of the two split hoops.

8. The trailer bucket column welding auxiliary device according to claim 4, characterized in that: The telescopic legs include: A fixed section, which has a hollow interior and is fixedly connected to the lower side of the hoop; and A telescopic joint is slidably inserted into the fixed joint and is used to connect with the upper side of the workbench or the surface of the truck bucket; Among them, a plurality of second thread grooves communicating with the interior of the fixed joint are provided on the side wall of the fixed joint, and each of the second thread grooves is threadedly connected with a second bolt suitable for abutting against the outer wall of the telescopic joint.

9. The trailer bucket column welding auxiliary device according to claim 1, characterized in that: A plurality of pulleys are arranged between the hoop and the sleeve, and each of the pulleys is used to be connected with the sleeve or the column; an elastic reset member is also arranged between each of the pulleys and the hoop.

10. A column welding method, based on the trailer bucket column welding auxiliary device according to any one of claims 1 to 9, characterized in that: The following steps are involved: A. Fixing the truck bucket to the upper side of the workbench; B. driving the movable seat to move by the horizontal driving member so that the movable seat is located on the left or right side of the column installation position; C. driving the turntable to rotate by the rotation driving member, and driving the clamping assembly to move by one of the linear driving members, so that the corresponding column is located directly above the installation position; D. driving the movable seat downward by the vertical driving member until the bottom end of the column is connected to the installation position; E. welding the column and the truck bed; F. By controlling the detachable structure, the corresponding limiting member is separated from the clamping assembly, and the limiting member falls onto the bucket and / or the workbench and connects with the column to fix the column relative to the bucket; G. Repeat steps B to F to complete the welding and fixing of the plurality of columns; H. Remove each of the stop members.

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