Wheat machine gap bridge body supporting pipe welding tool

Abstract

The invention provides a wheat machine gap bridge body supporting pipe welding tool which comprises a workbench, an end positioning piece, at least two supporting pipe positioning clamps and a plurality of supporting plate positioning clamps are arranged on the workbench, and the supporting pipe positioning clamps and the supporting plate positioning clamps are located on the same side of the end positioning piece and alternately arranged along a straight line. And the end part positioning piece, the supporting pipe positioning clamp and the supporting plate positioning clamp are positioned on the same straight line. By the adoption of the welding device, the lower side and the rear side of the supporting pipe body are positioned through the supporting pipe positioning clamp, the end of the supporting pipe body is positioned through the end positioning piece, the lower side and the upper side of the supporting plate base are positioned through the supporting plate positioning clamp, unified welding after overall positioning and clamping is achieved, operation is convenient, and the production efficiency is improved; the assembling error is reduced, the same planeness of the lower side of the supporting pipe body and the lower sides of the supporting plate bases is guaranteed, and the manufacturing precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing a wheat harvester bridge support tube, and in particular to a wheat harvester bridge support tube welding tool. Background Art

[0002] The bridge is a crucial component of the GKV3 and GS large wheat harvesters. It connects to the harvesting platform in front and the threshing unit in the back, transporting grain harvested by the harvesting platform to the threshing unit. A crucial component of the bridge is the support tube or beam, located between the two side walls of the bridge housing and providing stable support for the bridge. The support tube consists of a rectangular body with multiple threaded sleeves extending through it and multiple support plates mounted on one side.

[0003] Currently, support tube manufacturing often involves manual welding with simple tooling, which is time-consuming and labor-intensive. Furthermore, it's difficult to control the height and extension length of multiple support plates, resulting in poor consistency. This leads to poor overall precision during subsequent bridge assembly installation, and significant play and vibration in structures near the support tube, such as the sprocket and support plate. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: how to improve the assembly welding accuracy of the bridge body support pipe.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: The present invention provides a wheat harvester bridge support tube welding tool, comprising a workbench, wherein the workbench is provided with an end positioning piece, at least two support tube positioning fixtures, and a plurality of support plate positioning fixtures, wherein the support tube positioning fixtures and the support plate positioning fixtures are all located on the same side of the end positioning piece and are alternately arranged along a straight line, and the end positioning piece, the support tube positioning fixtures, and the support plate positioning fixtures are all located on the same straight line; The support tube positioning fixture can be used to position the lower side and rear side of the support tube body during support tube welding; The end positioning piece can be used to position the end of the support pipe body during support pipe welding; The support plate positioning fixture can be used to position the lower side and the upper side of the support plate seat during support tube welding.

[0006] The beneficial effects of the present invention are: By adopting the present invention, the lower side and the rear side of the support tube body are positioned by the support tube positioning fixture, the end positioning piece positions the end of the support tube body, and the support plate positioning fixture positions the lower side and the upper side of the support plate seat, thereby realizing unified welding after overall positioning and clamping, which is convenient to operate and improves production efficiency; at the same time, the consistency of the assembly of each support plate seat is improved and the assembly error is reduced; during welding, the support tube body and the support plate seat are both in a fixed state, which effectively restrains the error caused by welding deformation; thereby ensuring the coplanarity of the lower side of the support tube body and the lower sides of multiple support plate seats, and improving manufacturing accuracy.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the support tube positioning fixture includes a first mounting seat, a tube bottom positioning block and a transition block are provided on the top of the first mounting seat, and the upper and lower ends of the transition block are hinged with hinge plates, which extend away from the tube bottom positioning block and are hinged to the first mounting seat; a tube side positioning block is provided on the side of the transition block facing the tube bottom positioning block, and the tube side positioning block is higher than the tube bottom positioning block; a handle is also hinged on the top of the first mounting seat; a clamping block is also provided above the tube bottom positioning block, and a clamping portion is provided at one end of the clamping block, and the clamping portion faces the tube side positioning block; a movable plate is hinged on the other end of the clamping block, and one end of the movable plate is hinged to the middle of the handle, and the handle and the clamping block can rotate up and down relative to the movable plate.

[0009] The first mounting seat can be fixed on the workbench, and the installation is convenient; the tube bottom positioning block can position the lower side of the support tube body, and the tube side positioning block can position the rear side of the support tube body, and the positioning is convenient; by swinging the clamping block downward, the clamping part is located on the front side of the support tube body, and then the clamping block is pulled backward by the handle, so that the clamping part can clamp the support tube body on the tube side positioning block, which is easy to operate, improves work efficiency, and effectively suppresses welding deformation.

[0010] Furthermore, the pallet positioning fixture includes a third mounting seat, a pallet positioning block is provided on the top of one side of the third mounting seat, and the other side of the third mounting seat is hinged to a pallet clamping cylinder; the upper end of the third mounting seat is hinged to a clamping lever, one end of the clamping lever is hinged to the movable end of the pallet clamping cylinder, and the other end of the clamping lever is provided with a pallet clamping block, which is located directly above the pallet positioning block.

[0011] The third mounting base can be fixed on the workbench and is easy to install. By placing the pallet seat on the pallet positioning block and adjusting the position, the pallet clamping cylinder extends and drives the other end of the clamping lever to press down, which can drive the pallet clamping block to press the pallet seat onto the pallet positioning block. It is easy to operate and has good stability, effectively restrains the welding deformation of the pallet seat, and improves the welding accuracy.

[0012] Furthermore, the end positioning member includes a second mounting seat, a U-shaped seat is provided at the upper end of the second mounting seat, a rotating plate is provided inside the U-shaped seat, one end of the rotating plate is connected to the side wall of the U-shaped seat through a rotating shaft, and the other end of the rotating plate extends out of the U-shaped seat, and a pipe end positioning block is provided on the side of the rotating plate extending out of the U-shaped seat.

[0013] The second mounting base can be fixed on the workbench, which is easy to install; the rotating plate can be rotated around its own rotating axis to both sides of the U-shaped seat. When the end positioning piece is not in use, it is convenient to make the rotating plate and the pipe end positioning block avoid the supporting pipe body, which has good flexibility and easy operation.

[0014] Furthermore, two end plate positioning fixtures are provided on the workbench, and the end positioning piece, the support tube positioning fixture and the support plate positioning fixture are all located between the two end plate positioning fixtures.

[0015] When fixed end plates are provided at both ends of the support tube body, the rotating plate rotates to avoid the support tube body. At this time, the fixed end plates can be positioned by two end plate positioning fixtures, so that the fixed end plates and components such as the support plate seat are uniformly assembled and then welded, thereby improving work efficiency; at the same time, the product consistency is good, the welding deformation is small, and the manufacturing accuracy is improved.

[0016] Furthermore, the end plate positioning fixture includes a fourth mounting seat and an end plate pressure plate. The upper portion of the fourth mounting seat is provided with a guide seat and a first compression telescopic rod. The telescopic end of the first compression telescopic rod extends horizontally and is connected to the end plate pressure plate. The end plate pressure plate is provided with a guide rod that passes through the guide seat. The upper end of the fourth mounting seat is also hinged with a second compression telescopic rod and an end plate lever. The telescopic end of the second compression telescopic rod extends horizontally and is hinged to the upper end of the end plate lever. The lower end of the end plate lever is provided with an end plate positioning block, which is opposite to the end plate pressure plate.

[0017] The fourth mounting base can be fixed on the workbench and is easy to install. When the support tube body and the fixed end plate are assembled, the fixed end plate is pressed against the end of the support tube body by the end plate pressing plate, and then the second pressing telescopic rod is extended to drive the lower end of the end plate lever to drive the end plate positioning block close to the fixed end plate, thereby clamping the fixed end plate on the end plate pressing plate, realizing fixed assembly welding of the fixed end plate. The operation is simple and the work efficiency and manufacturing accuracy are improved.

[0018] Furthermore, the workbench is further provided with a plurality of lower plate positioning members and a plurality of beam tube support members arranged alternately along the same straight line, and the edges of the distribution profiles of the lower plate positioning members and the beam tube support members are further provided with end positioning members; A plurality of beam-tube side positioning blocks are further provided on one side of the distribution profile of the lower plate positioning member and the beam-tube support member, and a plurality of beam-tube side clamping members are further provided on the other side of the distribution profile of the lower plate positioning member and the beam-tube support member, each beam-tube side clamping member is directly opposite to a beam-tube side positioning block; An upper plate pressing piece is also provided directly above the lower plate positioning piece; and a beam tube pressing piece is also provided directly above the beam tube supporting piece.

[0019] The fixing seat and the connecting plate are positioned and clamped as a whole by the lower plate positioning piece and the upper plate clamping piece, the upper and lower sides of the supporting beam tube body are positioned by the beam tube support piece and the beam tube clamping piece, and the front and rear sides of the supporting beam tube body are positioned by the beam tube side positioning block and the beam tube side clamping piece, so that the supporting beam is welded and then uniformly welded after overall positioning and clamping, which is convenient to operate and improves production efficiency; at the same time, it improves the consistency of the assembly of each fixing seat and connecting plate and reduces the assembly error; during welding, all directions of the supporting beam welding are positioned and constrained, which effectively constrains the error caused by welding deformation; thereby ensuring the flatness of the lower side of each fixing seat, the upper side of each connecting plate and the flatness of each surface of the supporting beam tube body, and improving manufacturing accuracy.

[0020] Furthermore, the lower plate positioning member includes a fifth mounting seat, a three-axis cylinder is provided on the fifth mounting seat, and a positioning plate is provided at the movable end of the three-axis cylinder.

[0021] The fifth mounting base can be fixed on the workbench, which is easy to install; the fixing base is supported by the positioning plate, and the three-axis cylinder can drive the fixing base to adjust the height and horizontal position, which is easy to operate and improves the assembly accuracy.

[0022] Furthermore, the beam tube support includes a mounting block, a beam tube positioning block is provided on the top of the mounting block, an adjustment gasket is provided between the beam tube positioning block and the mounting block, and the beam tube positioning block and the mounting block are connected by countersunk screws.

[0023] The mounting block can be fixed on the workbench, which is easy to install; the height of the beam tube positioning block can be adjusted by adding or removing adjustment gaskets, which facilitates the adjustment of the horizontality of the support beam tube body during assembly and improves the assembly accuracy.

[0024] Furthermore, the upper plate clamping member includes a sixth mounting seat, one side of the sixth mounting seat is hinged with an upper plate clamping cylinder, the top of the sixth mounting seat is hinged with an upper plate lever, one end of the upper plate lever is hinged to the movable end of the upper plate clamping cylinder, and the other end of the upper plate lever is provided with a clamping claw; the clamping claw is located directly above the lower plate positioning member.

[0025] The sixth mounting seat can be fixed on the workbench and is easy to install; by extending the upper plate pressing cylinder, the clamping claw at the other end of the upper plate lever can be driven downward to clamp the connecting plate welded to the support beam and press the connecting plate onto the fixing seat, which is easy to operate and improves work efficiency.

[0026] Furthermore, the beam-tube side clamping member includes a seventh mounting seat, and the seventh mounting seat is provided with an ultra-thin cylinder, and the moving end of the ultra-thin cylinder is facing the beam-tube side positioning block.

[0027] The seventh mounting seat can be fixed on the workbench and is easy to install; the ultra-thin cylinder takes up little space and can press the welded support beam tube body of the support beam onto the beam tube side positioning block, which is easy to operate and improves assembly accuracy.

[0028] Furthermore, the beam-tube clamping member includes an eighth mounting seat, a cantilever is provided on the top of the eighth mounting seat, a bolt handle is provided on the cantilever, the bolt handle is connected to the cantilever by a thread, and a pressure block is provided at the lower end of the bolt handle, which is located directly above the beam-tube support member.

[0029] The eighth mounting bracket can be fixed on the workbench and is easy to install. By twisting the bolt handle, the pressure block can be driven to press the support beam tube body downward, which is easy to operate, improves work efficiency, facilitates effective restraint of the welding deformation of the support beam tube body, and improves assembly accuracy.

[0030] Furthermore, the lower side of the workbench is provided with running wheels.

[0031] The workbench is easy to move, adaptable to changing work sites, and has good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the support pipe welding in the prior art.

[0033] Figure 2 This is a schematic diagram of the structure of the front support tube welding in the prior art.

[0034] Figure 3 The figure is a schematic diagram of the structure of the support beam welding in the prior art.

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention.

[0036] Figure 5 For the present invention Figure 4 Schematic diagram of the three-dimensional structure in the rear view direction.

[0037] Figure 6 For the present invention Figure 4 Schematic diagram of the three-dimensional structure from a top-down perspective.

[0038] Figure 7 Schematic diagram of the structure of the support tube positioning fixture.

[0039] Figure 8 This is a schematic diagram of the structure of the end positioning piece.

[0040] Figure 9 This is a structural diagram of the pallet positioning fixture.

[0041] Figure 10 Schematic diagram of the structure of the end plate positioning fixture.

[0042] Figure 11 It is a structural diagram of the lower plate positioning part.

[0043] Figure 12 Schematic diagram of the structure of the beam-tube support.

[0044] Figure 13 It is a structural diagram of the upper plate pressing part.

[0045] Figure 14 Schematic diagram of the structure of the beam tube side clamping parts.

[0046] Figure 15 This is a structural diagram of the beam-tube clamping parts.

[0047] In the accompanying drawings, the technical features represented by the reference numerals are as follows: 1- Workbench; 2-support tube positioning fixture; 21-first mounting seat; 22-tube bottom positioning block; 23-transition block; 24-hinge plate; 25-tube side positioning block; 26-handle; 27-movable plate; 28-clamping block; 29-clamping part; 3-end positioning member; 31-second mounting seat; 32-U-shaped seat; 33-rotating plate; 34-pipe end positioning block; 4- pallet positioning fixture; 41- third mounting seat; 42- pallet positioning block; 43- pallet pressing cylinder; 44- pressing lever; 45- pallet pressing block; 5-end plate positioning fixture; 51-fourth mounting seat; 52-guide seat; 53-first compression telescopic rod; 54-end plate pressure plate; 55-second compression telescopic rod; 56-end plate lever; 57-end plate positioning block; 6-Lower plate positioning member; 61-Fifth mounting seat; 62-Three-axis cylinder; 63-Positioning plate; 7- beam tube support; 71- mounting block; 72- beam tube positioning block; 8-upper plate pressing member; 81-sixth mounting seat; 82-upper plate pressing cylinder; 83-upper plate lever; 84-clamping claw; 9- beam tube side positioning block; 10-beam tube side clamping piece; 101-seventh mounting seat; 102-ultra-thin cylinder; 11- beam tube pressing piece; 111- eighth mounting seat; 112- cantilever; 113- bolt handle; 12-walking wheel; 100-support tube body; 200-support plate seat; 300-threaded sleeve; 400-fixed end plate; 500-support beam tube body; 600-fixed seat; 700-connecting plate. DETAILED DESCRIPTION

[0048] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0049] The present invention refers to Figure 4-15 .

[0050] The present invention provides a wheat harvester bridge support tube welding tool, comprising a workbench 1, on which are provided an end positioning piece 3, at least two support tube positioning fixtures 2, and a plurality of support plate positioning fixtures 4, wherein the support tube positioning fixtures 2 and the support plate positioning fixtures 4 are all located on the same side of the end positioning piece 3 and are alternately arranged along a straight line, and the end positioning piece 3, the support tube positioning fixtures 2, and the support plate positioning fixtures 4 are all located on the same straight line; The support tube positioning fixture 2 can be used to position the lower side and rear side of the support tube body 100 during support tube welding; The end positioning member 3 can be used to position the end of the support tube body 100 during support tube welding; The support plate positioning fixture 4 can be used to position the lower side and the upper side of the support plate seat 200 during the support tube welding.

[0051] principle: Figure 1 This is a structural schematic diagram of the support tube welding of the prior art: the support tube welding includes a rectangular support tube body 100, on which are provided a plurality of threaded sleeves 300 and a plurality of support plate seats 200, and the two ends of the threaded sleeves 300 pass through the upper and lower sides of the support tube body 100; there are generally six threaded sleeves 300, and three are provided at both ends of the left and right ends of the support tube body 100; the support plate seat 200 is welded to the front side of the support tube body 100; there are generally three support plate seats 200.

[0052] right Figure 1 When the support tube is welded together, the support tube body 100 and the threaded sleeve 300 are welded together first. After welding, the support tube body 100 is placed on the support tube positioning fixture 2 so that the rear side of the support tube body 100 is against the support tube positioning fixture 2 and clamped; the end of the support tube body 100 is positioned by the end positioning piece 3; then the pallet seat 200 is placed on the pallet positioning fixture 4 so that the rear side of the pallet seat 200 is facing the front side of the support tube body 100, and the extension length of each pallet seat 200 relative to the support tube body 100 is adjusted to be consistent, and the pallet seat 200 is clamped by the pallet positioning fixture 4 to complete the positioning. After positioning, the weld seam between the pallet seat 200 and the support tube body 100 and other positions can be welded by welding equipment. After welding, the pallet positioning fixture 4 and the support tube positioning fixture 2 are loosened in turn to complete the welding.

[0053] By adopting the present invention, the lower side and rear side of the support tube body 100 are positioned by the support tube positioning fixture 2, the end positioning piece 3 positions the end of the support tube body 100, and the support plate positioning fixture 4 positions the lower side and upper side of the support plate seat 200, thereby realizing unified welding after overall positioning and clamping, which is convenient to operate and improves production efficiency; at the same time, the consistency of the assembly of each support plate seat 200 is improved and the assembly error is reduced; during welding, the support tube body 100 and the support plate seat 200 are both in a fixed state, which effectively constrains the error caused by welding deformation; thereby ensuring the coplanarity of the lower side of the support tube body 100 and the lower sides of multiple support plate seats 200, and improving manufacturing accuracy.

[0054] Further, such as Figure 7 As shown: the support tube positioning fixture 2 includes a first mounting seat 21, a tube bottom positioning block 22 and a transition block 23 are provided on the top of the first mounting seat 21, and hinge plates 24 are hinged at the upper and lower ends of the transition block 23. The hinge plates 24 extend in a direction away from the tube bottom positioning block 22 and are hinged to the first mounting seat 21; a tube side positioning block 25 is provided on the side of the transition block 23 facing the tube bottom positioning block 22, and the tube side positioning block 25 is higher than the tube bottom positioning block 22; A handle 26 is also hinged to the top of the first mounting seat 21; a clamping block 28 is also provided above the tube bottom positioning block 22, and a clamping portion 29 is provided at one end of the clamping block 28, which is opposite to the tube side positioning block 25; a movable plate 27 is hinged to the other end of the clamping block 28, and one end of the movable plate 27 is hinged to the middle part of the handle 26, and the handle 26 and the clamping block 28 can both rotate up and down relative to the movable plate 27.

[0055] Preferably, the bottom tube positioning block 22 is connected to the first mounting seat 21 via countersunk screws, with an adjustment shim positioned between them. The side tube positioning block 25 is connected to the transition block 23 via countersunk screws, with an adjustment shim positioned between them. The clamping portion 29 is made of an elastic material. A magnet is also positioned on the side of the transition block 23 facing away from the bottom tube positioning block 22, which is secured to the first mounting seat 21.

[0056] The first mounting seat 21 can be fixed on the workbench 1, and the installation is convenient; the tube bottom positioning block 22 can position the lower side of the support tube body 100, and the tube side positioning block 25 can position the rear side of the support tube body 100, and the positioning is convenient; by swinging the clamping block 28 downward, the clamping part 29 is located on the front side of the support tube body 100, and then the clamping block 28 is pulled backward by the handle 26, so that the clamping part 29 can clamp the support tube body 100 on the tube side positioning block 25, which is easy to operate, improves work efficiency, and effectively suppresses welding deformation.

[0057] Further, such as Figure 9As shown: the pallet positioning fixture 4 includes a third mounting seat 41, a pallet positioning block 42 is provided on the top of one side of the third mounting seat 41, and a pallet clamping cylinder 43 is hinged on the other side of the third mounting seat 41; the upper end of the third mounting seat 41 is hinged with a clamping lever 44, one end of the clamping lever 44 is hinged to the moving end of the pallet clamping cylinder 43, and the other end of the clamping lever 44 is provided with a pallet clamping block 45, which is located directly above the pallet positioning block 42.

[0058] Preferably, an adjustment washer is provided between the support plate positioning block 42 and the third mounting seat 41 and connected by a countersunk screw. A pin is provided on the support plate positioning block 42 for positioning the support plate seat 200. There are at least three support plate positioning fixtures 4.

[0059] The third mounting seat 41 can be fixed on the workbench 1 and is easy to install; by placing the pallet seat 200 on the pallet positioning block 42 and adjusting the position, the pallet clamping cylinder 43 extends and drives the other end of the clamping lever 44 to press down, which can drive the pallet clamping block 45 to press the pallet seat 200 onto the pallet positioning block 42. It is easy to operate and has good stability, which effectively restrains the welding deformation of the pallet seat 200 and improves the welding accuracy.

[0060] Further, such as Figure 8 As shown: the end positioning member 3 includes a second mounting seat 31, a U-shaped seat 32 is provided at the upper end of the second mounting seat 31, a rotating plate 33 is provided in the U-shaped seat 32, one end of the rotating plate 33 is connected to the side wall of the U-shaped seat 32 through a rotating shaft, and the other end of the rotating plate 33 extends out of the U-shaped seat 32, and a pipe end positioning block 34 is provided on one side of the part of the rotating plate 33 extending out of the U-shaped seat 32.

[0061] Preferably, the pipe end positioning block 34 is connected to the rotating plate 33 by screws, and an adjustment gasket is provided between the pipe end positioning block 34 and the rotating plate 33 .

[0062] The second mounting base 31 can be fixed on the workbench 1 and is easy to install; the rotating plate 33 can rotate around its own rotating axis to both sides of the U-shaped seat 32. When the end positioning piece 3 is not in use, it is convenient to make the rotating plate 33 and the pipe end positioning block 34 avoid the support pipe body 100, which has good flexibility and easy operation.

[0063] Furthermore, two end plate positioning fixtures 5 are provided on the workbench 1 , and the end positioning piece 3 , the support tube positioning fixture 2 and the support plate positioning fixture 4 are all located between the two end plate positioning fixtures 5 .

[0064] explain: Figure 2 The difference between the front support tube welding and the support tube welding is that fixed end plates 400 are provided at both ends of the support tube body 100.

[0065] When fixed end plates 400 are provided at both ends of the support tube body 100, the rotating plate 33 rotates to avoid the support tube body 100. At this time, the fixed end plates 400 can be positioned by two end plate positioning fixtures 5, so that the fixed end plates 400 and the support plate seat 200 and other components are uniformly assembled and welded, thereby improving work efficiency; at the same time, the product consistency is good, the welding deformation is small, and the manufacturing accuracy is improved.

[0066] Further, such as Figure 10 As shown: the end plate positioning fixture 5 includes a fourth mounting seat 51 and an end plate pressing plate 54. A guide seat 52 and a first pressing telescopic rod 53 are provided on the upper portion of the fourth mounting seat 51. The telescopic end of the first pressing telescopic rod 53 extends horizontally and is connected to the end plate pressing plate 54. A guide rod is provided on the end plate pressing plate 54, and the guide rod passes through the guide seat 52. The upper end of the fourth mounting seat 51 is also hinged with a second clamping telescopic rod 55 and an end plate lever 56. The telescopic end of the second clamping telescopic rod 55 extends horizontally and is hinged to the upper end of the end plate lever 56. The lower end of the end plate lever 56 is provided with an end plate positioning block 57, and the end plate positioning block 57 is opposite to the end plate pressure plate 54.

[0067] Preferably, a magnet is further provided on the end plate pressure plate 54. An adjustment washer is provided between the end plate positioning block 57 and the end plate lever 56 and connected by countersunk screws.

[0068] The fourth mounting seat 51 can be fixed on the workbench 1 and is easy to install; when the support tube body 100 is assembled with the fixed end plate 400, the fixed end plate 400 is pressed against the end of the support tube body 100 by the end plate pressing plate 54, and then the second pressing telescopic rod 55 is extended, driving the lower end of the end plate lever 56 to drive the end plate positioning block 57 close to the fixed end plate 400, thereby clamping the fixed end plate 400 on the end plate pressing plate 54, realizing the fixed assembly welding of the fixed end plate 400; it is easy to operate and improves work efficiency and manufacturing accuracy.

[0069] Furthermore, the workbench 1 is further provided with a plurality of lower plate positioning members 6 and a plurality of beam tube support members 7 alternately arranged along the same straight line, and the edges of the distribution profiles of the lower plate positioning members 6 and the beam tube support members 7 are further provided with end positioning members 3; A plurality of beam-tube side positioning blocks 9 are further provided on one side of the distribution profile of the lower plate positioning member 6 and the beam-tube support member 7. A plurality of beam-tube side clamping members 10 are further provided on the other side of the distribution profile of the lower plate positioning member 6 and the beam-tube support member 7. Each beam-tube side clamping member 10 is directly opposite to a beam-tube side positioning block 9. An upper plate pressing member 8 is further provided directly above the lower plate positioning member 6 ; a beam tube pressing member 10 is further provided directly above the beam tube supporting member 7 .

[0070] explain: Figure 3The figure shows the structure of a conventional support beam welded structure. The structure comprises a rectangular support beam tube 500, with multiple fixing seats 600 disposed on its underside. Multiple channel-shaped connecting plates 700 are mounted on its upper side. These connecting plates 700 are fastened to the support beam tube 500, with each connecting plate 700 corresponding to and welded to a fixing seat 600. Typically, there are four fixing seats 600 and four connecting plates 700.

[0071] The present invention can also be used for Figure 3 The support beams are welded together for assembly welding. During assembly welding, first place the fixed seat 600 of the support beam welded together on the lower plate positioning member 6, then place the support beam tube body 500 of the support beam welded together on the beam tube support member 7 and contact the fixed seat 600, the rear side of the support beam tube body 500 is against the beam tube side positioning block 9, and the end of the support beam tube body 500 is positioned by the end positioning member 3; then place the connecting plate 700 of the support beam welded together on the support beam tube body 500 and face the fixed seat 600; then use the beam tube side clamping member 10 to clamp the support beam tube body 500 on the beam tube side positioning block 9, and use the upper plate pressing member 8 to press the connecting plate 700; finally, use the beam tube pressing member 10 to press the support beam tube body 500 on the beam tube support member 7 to complete the positioning. After positioning, the welds between the fixed seat 600, the connecting plate 700 and the support beam tube body 500 can be welded by welding equipment. After welding, the beam tube pressing piece 10, the upper plate pressing piece 8 and the beam tube side clamping piece 10 are loosened in sequence to complete the assembly welding.

[0072] The fixing seat 600 and the connecting plate 700 are positioned and clamped as a whole by the lower plate positioning member 6 and the upper plate clamping member 8, the upper and lower sides of the supporting beam tube body 500 are positioned by the beam tube support member 7 and the beam tube clamping member 10, and the front and rear sides of the supporting beam tube body 500 are positioned by the beam tube side positioning block 9 and the beam tube side clamping member 10, so that the supporting beam is welded and then uniformly welded after overall positioning and clamping, which is convenient to operate and improves production efficiency; at the same time, the consistency of the assembly of each fixing seat 600 and the connecting plate 700 is improved, and the assembly error is reduced; during welding, all directions of the supporting beam welding are positioned and constrained, which effectively constrains the error caused by welding deformation; thereby ensuring the flatness of the lower side of each fixing seat 600, the flatness of the upper side of each connecting plate 700 and the flatness of each surface of the supporting beam tube body 500, and improving manufacturing accuracy.

[0073] Further, such as Figure 11 As shown, the lower plate positioning member 6 includes a fifth mounting seat 61 , a three-axis cylinder 62 is provided on the fifth mounting seat 61 , and a positioning plate 63 is provided at the moving end of the three-axis cylinder 62 .

[0074] Preferably, a positioning pin is further provided on the positioning plate 63, and the positioning pin is used to position the fixing seat 600 welded to the support beam.

[0075] The fifth mounting base 61 can be fixed on the workbench 1 and is easy to install; the fixing base 600 is supported by the positioning plate 63, and the three-axis cylinder 62 can drive the fixing base 600 to adjust the height and horizontal position, which is easy to operate and improves the assembly accuracy.

[0076] Further, such as Figure 12 As shown: the beam tube support 7 includes a mounting block 71, a beam tube positioning block 72 is provided on the top of the mounting block 71, an adjustment gasket is provided between the beam tube positioning block 72 and the mounting block 71, and the beam tube positioning block 72 and the mounting block 71 are connected by countersunk screws.

[0077] The mounting block 71 can be fixed on the workbench 1 and is easy to install. The height of the beam tube positioning block 72 can be adjusted by adding or removing adjustment pads, which facilitates adjusting the horizontality of the support beam tube body 500 during assembly and improves assembly accuracy.

[0078] Further, such as Figure 13 As shown: the upper plate clamping member 8 includes a sixth mounting seat 81, one side of the sixth mounting seat 81 is hinged with an upper plate clamping cylinder 82, the top of the sixth mounting seat 81 is hinged with an upper plate lever 83, one end of the upper plate lever 83 is hinged to the moving end of the upper plate clamping cylinder 82, and the other end of the upper plate lever 83 is provided with a clamping claw 84; the clamping claw 84 is located directly above the lower plate positioning member 6.

[0079] Preferably, the clamping jaw 84 is U-shaped.

[0080] The sixth mounting seat 81 can be fixed on the workbench 1 and is easy to install; by extending the upper plate pressing cylinder 82, the clamping claw 84 at the other end of the upper plate lever 83 can be driven downward to clamp the connecting plate 700 welded to the support beam and press the connecting plate 700 onto the fixing seat 600, which is easy to operate and improves work efficiency.

[0081] Further, such as Figure 14 As shown: the beam-tube side clamping member 10 includes a seventh mounting seat 101 , on which an ultra-thin cylinder 102 is provided, and the moving end of the ultra-thin cylinder 102 faces the beam-tube side positioning block 9 .

[0082] The seventh mounting seat 101 can be fixed on the workbench 1 and is easy to install; the ultra-thin cylinder 102 takes up little space and can press the support beam tube body 500 welded with the support beam onto the beam tube side positioning block 9, which is easy to operate and improves assembly accuracy.

[0083] Further, such as Figure 15As shown: the beam-tube clamping member 10 includes an eighth mounting seat 111, a cantilever 112 is provided on the top of the eighth mounting seat 111, a bolt handle 113 is provided on the cantilever 112, the bolt handle 113 is connected to the cantilever 112 by a thread, and a pressure block is provided at the lower end of the bolt handle 113, which is located directly above the beam-tube support member 7.

[0084] The eighth mounting seat 111 can be fixed on the workbench 1 and is easy to install; by twisting the bolt handle 113, the pressure block can be driven to press the support beam tube body 500 downward, which is easy to operate, improves work efficiency, and is convenient for effectively restraining the welding deformation of the support beam tube body 500, thereby improving assembly accuracy.

[0085] Furthermore, a wheel 12 is provided on the lower side of the workbench 1 .

[0086] The workbench 1 is easy to move, adapts to changing work sites, and has good flexibility.

[0087] In the description of the present invention, it should be understood that if there appear descriptive terms indicating orientation, direction or positional relationship, such as: "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of understanding the present invention and simplifying the description, and does not indicate or imply that the part, element or whole referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0088] In addition, if there are order description terms, such as "first", "second", etc., their purpose in this specification is to facilitate understanding or simplify the description. For example, in order to distinguish multiple technical features with the same type or function, but they have to be mentioned separately, this specification may use prefix or suffix order description terms to distinguish them. Therefore, it cannot 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" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0089] In the present invention, if terms describing the relative functional relationship of structures are used, such as "install", "connect", "connect", "fix", etc., they should be understood in a broad sense unless otherwise clearly specified and limited. For example, "install", "connect", "connect", etc. can be fixed connections, detachable connections, or integrated; can be mechanical connections or electrical connections; can be direct connections or indirect connections through an intermediate medium, can be internal connections between two elements or an interactive relationship between two elements; "fix" can be an integrated fixation or a detachable fixation through fasteners; can be a direct fixation or a fixation through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above-mentioned descriptive terms in the present invention can be understood according to the specific circumstances, the context, the coherence of the preceding and following texts, etc.

[0090] In the present invention, if descriptive terms with ancillary or connecting meaning appear, for example, a first feature being "on" or "below" a second feature, these should not be construed in a limiting sense unless otherwise expressly specified or limited. For example, "on" or "below" may refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediary. Persons of ordinary skill in the art will understand the specific meanings of these descriptive terms in the present invention based on the specific circumstances, context, and coherence of the preceding and following texts.

[0091] Furthermore, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments, examples and features of different embodiments and examples described in this specification, unless there is any contradiction, and these combinations or combinations should all fall within the scope of the present invention.

[0093] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limiting the present invention. Changes, modifications, substitutions and variations of the above embodiments made by persons of ordinary skill in the art within the scope of information available through public channels and in combination with the technical inspiration provided by the present application documents are still within the scope of protection of the present application.

Claims

1. A wheat harvester bridge support pipe welding tool, characterized by: The invention comprises a workbench (1), wherein the workbench (1) is provided with an end positioning member (3), at least two support tube positioning fixtures (2) and a plurality of support plate positioning fixtures (4), wherein the support tube positioning fixtures (2) and the support plate positioning fixtures (4) are all located on the same side of the end positioning member (3) and are alternately arranged along a straight line, and the end positioning member (3), the support tube positioning fixtures (2) and the support plate positioning fixtures (4) are all located on the same straight line; The support tube positioning fixture (2) can be used to position the lower side and rear side of the support tube body (100) during support tube welding; The end positioning member (3) can be used to position the end of the support tube body (100) during support tube welding; The support plate positioning fixture (4) can be used to position the lower side and the upper side of the support plate seat (200) during support tube welding.

2. The wheat harvester bridge support pipe welding tool according to claim 1, characterized in that: The support tube positioning fixture (2) comprises a first mounting seat (21), a tube bottom positioning block (22) and a transition block (23) are provided on the top of the first mounting seat (21), and hinge plates (24) are hinged at the upper and lower ends of the transition block (23), and the hinge plates (24) extend in a direction away from the tube bottom positioning block (22) and are hinged to the first mounting seat (21); a tube side positioning block (25) is provided on a side of the transition block (23) facing the tube bottom positioning block (22), and the tube side positioning block (25) is higher than the tube bottom positioning block (22); A handle (26) is hingedly connected to the top of the first mounting seat (21); a clamping block (28) is provided above the tube bottom positioning block (22); one end of the clamping block (28) is provided with a clamping portion (29), and the clamping portion (29) is directly opposite to the tube side positioning block (25); the other end of the clamping block (28) is hingedly connected to a movable plate (27), one end of the movable plate (27) is hingedly connected to the middle of the handle (26), and the handle (26) and the clamping block (28) can both rotate up and down relative to the movable plate (27).

3. The wheat harvester bridge support pipe welding tool according to claim 1, characterized in that: The pallet positioning fixture (4) includes a third mounting seat (41), a pallet positioning block (42) is provided on the top of one side of the third mounting seat (41), and a pallet pressing cylinder (43) is hinged on the other side of the third mounting seat (41); a pressing lever (44) is hinged on the upper end of the third mounting seat (41), one end of the pressing lever (44) is hinged to the movable end of the pallet pressing cylinder (43), and a pallet pressing block (45) is provided on the other end of the pressing lever (44), and the pallet pressing block (45) is located directly above the pallet positioning block (42).

4. The wheat harvester bridge support pipe welding tool according to claim 1, characterized in that: The end positioning member (3) comprises a second mounting seat (31), a U-shaped seat (32) is provided at the upper end of the second mounting seat (31), a rotating plate (33) is provided in the U-shaped seat (32), one end of the rotating plate (33) is connected to the side wall of the U-shaped seat (32) via a rotating shaft, the other end of the rotating plate (33) extends out of the U-shaped seat (32), and a pipe end positioning block (34) is provided on one side of the portion of the rotating plate (33) extending out of the U-shaped seat (32).

5. The wheat harvester bridge support pipe welding tool according to claim 1, characterized in that: The workbench (1) is further provided with two end plate positioning fixtures (5), and the end positioning piece (3), the support tube positioning fixture (2) and the support plate positioning fixture (4) are all located between the two end plate positioning fixtures (5).

6. The wheat harvester bridge support pipe welding tool according to claim 5, characterized in that: The end plate positioning fixture (5) includes a fourth mounting seat (51) and an end plate pressing plate (54). A guide seat (52) and a first pressing telescopic rod (53) are provided on the upper portion of the fourth mounting seat (51). The telescopic end of the first pressing telescopic rod (53) extends horizontally and is connected to the end plate pressing plate (54). A guide rod is provided on the end plate pressing plate (54), and the guide rod passes through the guide seat (52). The upper end of the fourth mounting seat (51) is also hinged with a second compression telescopic rod (55) and an end plate lever (56), the telescopic end of the second compression telescopic rod (55) extends horizontally and is hinged with the upper end of the end plate lever (56), and the lower end of the end plate lever (56) is provided with an end plate positioning block (57), and the end plate positioning block (57) is opposite to the end plate pressure plate (54).

7. The wheat harvester bridge support pipe welding tool according to claim 1, characterized in that: The workbench (1) is further provided with a plurality of lower plate positioning members (6) and a plurality of beam tube support members (7) alternately arranged along the same straight line, and the edges of the distribution profiles of the lower plate positioning members (6) and the beam tube support members (7) are further provided with end positioning members (3); A plurality of beam-tube side positioning blocks (9) are further provided on one side of the distribution profile of the lower plate positioning member (6) and the beam-tube support member (7), and a plurality of beam-tube side clamping members (10) are further provided on the other side of the distribution profile of the lower plate positioning member (6) and the beam-tube support member (7), each beam-tube side clamping member (10) facing a beam-tube side positioning block (9); An upper plate pressing member (8) is also provided directly above the lower plate positioning member (6); and a beam tube pressing member (10) is also provided directly above the beam tube supporting member (7).

8. The wheat harvester bridge support pipe welding tool according to claim 7, characterized in that: The lower plate positioning member (6) comprises a fifth mounting seat (61), a three-axis cylinder (62) is provided on the fifth mounting seat (61), and a positioning plate (63) is provided at the movable end of the three-axis cylinder (62).

9. The wheat harvester bridge support pipe welding tool according to claim 7, characterized in that: The beam tube support member (7) comprises a mounting block (71), a beam tube positioning block (72) is provided on the top of the mounting block (71), an adjustment gasket is provided between the beam tube positioning block (72) and the mounting block (71), and the beam tube positioning block (72) and the mounting block (71) are connected by countersunk screws.

10. The wheat harvester bridge support pipe welding tool according to claim 7, characterized in that: The upper plate pressing member (8) includes a sixth mounting seat (81), one side of the sixth mounting seat (81) is hinged with an upper plate pressing cylinder (82), the top of the sixth mounting seat (81) is hinged with an upper plate lever (83), one end of the upper plate lever (83) is hinged with the movable end of the upper plate pressing cylinder (82), and the other end of the upper plate lever (83) is provided with a clamping claw (84); the clamping claw (84) is located directly above the lower plate positioning member (6).

11. The wheat harvester bridge support pipe welding tool according to claim 7, characterized in that: The beam tube side clamping member (10) comprises a seventh mounting seat (101), an ultra-thin cylinder (102) is provided on the seventh mounting seat (101), and the moving end of the ultra-thin cylinder (102) faces the beam tube side positioning block (9).

12. The wheat harvester bridge support pipe welding tool according to claim 7, characterized in that: The beam tube pressing member (10) includes an eighth mounting seat (111), a cantilever (112) is provided on the top of the eighth mounting seat (111), a bolt handle (113) is provided on the cantilever (112), the bolt handle (113) is connected to the cantilever (112) by a thread, and a pressure block is provided at the lower end of the bolt handle (113), and the pressure block is located directly above the beam tube support member (7).

13. The wheat harvester bridge support pipe welding tool according to claim 1, characterized in that: The lower side of the workbench (1) is also provided with running wheels (12).

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