CN111906550B

CN111906550B - Air duct forming line

Info

Publication number: CN111906550B
Application number: CN202010837303.4A
Authority: CN
Inventors: 杨志舜; 许良兴; 吴锦浩; 张奇浪; 杨焯皓
Original assignee: Shunde Samyang Co ltd; Guangdong Sanyang Robot Co ltd
Current assignee: Shunde Samyang Co ltd; Guangdong Sanyang Robot Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2022-04-12
Anticipated expiration: 2040-08-19
Also published as: CN111906550A

Abstract

The invention belongs to the field of axial flow fan manufacturing equipment, in particular to a wind barrel forming line, which comprises a transfer device, a feeding station, a flanging station, a punching station, a welding station and a blanking station, wherein the flanging station comprises at least one of a first flanging station, a second flanging station and a third flanging station, the first flanging station is used for forming an arc-shaped flanging, the second flanging station is used for forming a straight flanging, the third flanging station is used for forming a straight flanging, the punching station is used for punching a hole on the flanging, the welding station is used for welding an installation frame for an assembly motor in the wind barrel, the flanging station, the punching station and the welding station are selected according to the design requirements of the wind barrel and are combined with the feeding station and the blanking station to form working stations, and the transfer device transfers the wind barrel between adjacent stations in the working stations, the commonality is strong, combines above-mentioned station and forms work station and cooperation transfer device and realizes automated production.

Description

Air duct forming line

Technical Field

The invention belongs to the field of axial-flow fan manufacturing equipment, and particularly relates to an air duct forming line.

Background

Axial-flow fan includes the dryer, the rotatory motor of flabellum and drive flabellum, be equipped with the mounting bracket that is used for installing the motor in the dryer, wherein, the dryer is formed by the coil stock welding, the dryer after the welding needs to carry out the flanging operation, and according to the difference of product, the turn-ups kind is also different, the turn-ups station that relates also can be distinguished, and simultaneously, to the dryer of special requirement, still need punch on the turn-ups, consequently still involve the station that punches a hole, after accomplishing above-mentioned process, to the dryer that needs the welding mounting bracket, still need shift to carry out welding operation on the welding station, because current production facility is scattered, the transfer of work piece needs artifical the realization between the process of front and back, inefficiency, therefore it is very necessary to research and develop an automatic dryer shaping line.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an air duct forming line which is high in automation degree.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an air duct forming line, includes transfer device and the material loading station, turn-ups station, the station of punching a hole, welding station and the unloading station that set gradually, the turn-ups station includes at least one in first turn-ups station, second turn-ups station and the third turn-ups station, and first turn-ups station is used for forming the arc turn-ups at the port of dryer, and second turn-ups station is used for forming the straight turn-ups at the port of dryer, and the third turn-ups station is used for forming the straight turn-ups at the port of dryer, the station of punching a hole is used for punching a hole in the turn-ups, the welding station is used for welding the mounting bracket that the assembly motor used in the dryer, selects turn-ups station, the station of punching a hole and welding station according to the design demand of dryer to form the work station with material loading station and unloading station combination, the transfer device is in the work station between the adjacent station.

Compared with the prior art, the forming line provided by the invention is integrated with the feeding station, the flanging station, the punching station, the welding station and the blanking station, the flanging station, the punching station and the welding station can be selectively selected according to the structural design of the air duct, and the working station is combined with the feeding station and the blanking station to form the working station so as to meet the requirements of the air duct process.

Further, the first flanging station comprises a first flanging frame, a tensioning mechanism and a first lifting platform which are arranged on the first flanging frame, and a first flanging mechanism which is arranged on the first lifting platform, wherein the tensioning mechanism is used for fixing the air duct and driving the air duct to rotate, the first flanging mechanism comprises a plurality of first initial-shaped rollers and a first edge-closing shaping wheel which are arranged on the periphery of the tensioning mechanism, the first initial-shaped rollers are provided with curved surfaces which gradually contract from bottom to top, a circle of first shaping groove is annularly arranged on the side part of the first edge-closing shaping wheel, the parts of the first edge-closing shaping wheel, which are positioned on the upper side and the lower side of the first shaping groove, respectively extend outwards to form a first process step, the first lifting platform drives the first flanging mechanism to move up and down relative to the tensioning mechanism, and the tensioning mechanism fixes the air duct and rotates during flanging, the first lifting platform rises to drive the first prototype idler wheel to feed upwards to contact with the inner side wall of the air duct, so that the arc-shaped flanging is pulled out of the port of the air duct, and then the first edge-closing shaping wheel feeds the outer edge of the light-pressure flanging radially to trim.

Further, the second flanging station comprises a second flanging frame, a tensioning mechanism and a second flanging mechanism, the tensioning mechanism is arranged on the second flanging frame and is used for fixing the air duct and driving the air duct to rotate, the second flanging mechanism comprises a second primary roller, a second straight-edge wheel set and a second edge-closing shaping wheel, the second primary roller is arranged around the tensioning mechanism, the second primary roller is a circular table which contracts from bottom to top, the second straight-edge wheel set comprises a second upper pressing wheel and a second lower pressing wheel, a circle of second forming groove is annularly arranged on the side portion of the second edge-closing shaping wheel, the portions, located on the upper side and the lower side of the second forming groove, of the second edge-closing shaping wheel extend outwards to form a second technological step, during flanging, the second primary roller feeds and presses against the outer side wall of the air duct to slightly deform the air duct to form a step-shaped structure, and then the second upper pressing wheel presses against the upper side of the step, and the second pressing wheel abuts against the lower side of the step and feeds outwards to pull out the straight flanging, and then the second edge-closing shaping wheel feeds the outer edge of the light-pressure flanging radially to trim.

Further, second turn-ups mechanism is still including locating the fine setting subassembly that rises in the tight mechanism outside, the fine setting subassembly includes the fixed pulley, be located the driving wheel of fixed pulley downside and order about the first pneumatic cylinder that the driving wheel reciprocated, when needs fine setting, before the plastic wheel of above-mentioned second receipts limit feeds, turn-ups upside and downside are arranged respectively in to fixed pulley and driving wheel, the fixed pulley supports to press at turn-ups upside, the driving wheel upwards feeds from the turn-ups downside, thereby fixed pulley and driving wheel extrude each other and make turn-ups's outer fringe upwarp, above-mentioned technology is applicable to and makes the dryer that the material is stainless steel.

Further, the third flanging station comprises a third flanging frame, a tensioning mechanism and a third flanging mechanism, the tensioning mechanism is arranged on the third flanging frame and is used for fixing the air duct and driving the air duct to rotate, the third flanging mechanism comprises a third primary roller, a third straight-edge wheel set and a third edge-closing shaping wheel, the third primary roller, the third straight-edge wheel set and the third edge-closing shaping wheel are arranged around the tensioning mechanism, the third primary roller is a circular table which contracts from bottom to top, the third straight-edge wheel set comprises a third upper pressing wheel and a third lower pressing wheel, a circle of third forming groove is annularly arranged on the side portion of the third edge-closing shaping wheel, the portions, located on the upper side and the lower side of the third forming groove, of the third edge-closing shaping wheel respectively extend outwards to form a third process step, during flanging, the third primary roller feeds and presses against the outer side wall of the air duct to slightly deform the third forming groove to form a step-shaped structure, and then the third upper pressing wheel presses against the upper side of the step, and the third pressing wheel abuts against the lower side of the step and feeds outwards to pull out the straight flanging, and then the third edge-closing shaping wheel feeds the outer edge of the light-pressure flanging radially to trim.

Further, the third turn-ups station is still including locating the mechanism that adds muscle outside the tight mechanism that rises, it adds muscle mechanism including a plurality of muscle pinch rollers that vertically set up to add, the lateral surface that adds the muscle pinch roller is equipped with the convex part, thereby when needs add the muscle, adds the muscle pinch roller and radially feeds and support the rib that presses the lateral wall of pressing the dryer and extrude corresponding quantity on the lateral wall.

Furthermore, the punching station comprises a punching frame, a tensioning mechanism arranged on the punching frame, a punching mechanism and a fixing frame, wherein the tensioning mechanism is used for fixing the air duct and selectively driving the air duct to intermittently rotate, the fixing frame is arranged on the outer side of the tensioning mechanism and is used for supporting the flanging of the air duct, the punching mechanism comprises a lower die, an upper die and a second hydraulic cylinder which are arranged on the upper side of the lower die, and a cylinder body driving device, the second hydraulic cylinder comprises a cylinder body and a piston rod, the cylinder body and the lower die are relatively and fixedly connected, the piston rod and the upper die are relatively and fixedly connected, the cylinder body driving device drives the cylinder body to move up and down, when in punching, the piston rod extends out to drive the upper die to abut against the upper end face of the flanging, the cylinder body driving device drives the cylinder body to move up, and meanwhile, the piston rod continues to extend out to keep the upper end face of the upper die abutting against the flanging, so as to drive the lower die to punch the flanging from bottom to top, the punching mechanism is arranged in a mode that the lower side punches the hole towards the upper side, so that burrs generated in punching are towards the side far away from the corresponding port, and the existing grinding process is omitted.

Further, the welding station is used for dryer and mounting bracket, and it includes workstation, welder, positioning mechanism and heat conduction mechanism, positioning mechanism locates on the workstation for install the dryer and the fixed mounting bracket of treating the welding, welder is controlled its moving trajectory on the welding station by welder drive arrangement, heat conduction mechanism is relative including can being controlled the heat-conducting piece that the mounting bracket removed, during the welding, the welding position that the heat-conducting piece corresponds mounting bracket and dryer inside wall and the lateral wall looks butt of dryer to dispel the heat at welding process, avoid thermal gathering and make the face of weld unsmooth.

Furthermore, the tensioning mechanism comprises a third hydraulic cylinder, a guide rod and a tensioning assembly, the third hydraulic cylinder is fixedly arranged at the lower side of the frame, the guide rod is connected with the output end of the third hydraulic cylinder and driven by the third hydraulic cylinder to move up and down, the tensioning assembly is rotatably arranged at the upper side of the frame and driven by a second rotary driving device to rotate, the tensioning assembly comprises a tensioning bracket, a driving part and a wedge block, the guide rod extends upwards into the tensioning bracket, the driving part is movably connected with the tensioning bracket up and down and rotatably penetrates through the guide rod, the guide rod is provided with a plurality of limiting steps which are clamped at the upper end and the lower end of the driving part so as to drive the driving part to synchronously move, the wedge block is arranged around the guide rod and can be movably arranged at the side part of the tensioning bracket inside and outside, an elastic reset part for driving the wedge block to reset inwards and move is arranged between the tensioning bracket and the wedge block, the outer side of the wedge block is connected with a propping part butted with the inner side wall of the air duct, the side part of the driving piece is provided with a conical surface which shrinks downwards corresponding to the wedge block, and the inner side surface of the wedge block is in sliding fit with the conical surface; the guide rod drives the driving piece to move downwards to push out the wedge block so as to tension the air duct, the guide rod moves upwards to drive the driving piece to move upwards to enable the wedge block to reset inwards to move and loosen the air duct, and the tension mechanism is simple in structure, rapid in reaction and capable of fixing the air duct stably and reliably.

Furthermore, the flanging station comprises a first flanging station, a second flanging station and a third flanging station, the transfer device comprises a track arranged along the station and capable of being arranged along the track, five mechanical arms moving along the track are arranged on the track, and the five mechanical arms comprise a first mechanical arm, a second mechanical arm, a third mechanical arm, a fourth mechanical arm and a fifth mechanical arm which are sequentially arranged. The first mechanical arm is located between the feeding station and the flanging station, the second mechanical arm is located on the upper side of the flanging station, the third mechanical arm is located between the flanging station and the punching station, the fourth mechanical arm is located between the punching station and the welding station, and the sixth mechanical arm is located between the welding station and the discharging station. Five manipulators all include the slide, and a support, sliding motor and lift drive, locate on the track the slide slidable of each manipulator, sliding motor locates on the slide, its output passes through gear and track rack toothing, the downside of slide is located to the support and is reciprocated by the lift drive, first manipulator is still including locating the first anchor clamps on its support, the second anchor clamps on its support are still located to the second manipulator, the third anchor clamps on its support are still including locating to the third manipulator, the fourth anchor clamps on its support are still including locating to the fourth manipulator, the fifth manipulator is still including locating the fifth anchor clamps on its support.

Drawings

FIG. 1 is a schematic structural view of a duct forming line;

FIG. 2 is a schematic structural view of a first flanging station;

FIG. 3 is a schematic structural view of a second flanging station;

FIG. 4 is a schematic structural view of a third flanging station;

FIG. 5 is a schematic structural view of a punching station;

FIG. 6 is a schematic structural view of the tensioning mechanism;

FIG. 7 is a schematic structural view of the tension assembly;

FIG. 8 is a schematic view of a welding station;

FIG. 9 is a top view of the welding station;

FIG. 10 is a schematic structural view of an air duct and a mounting bracket;

FIG. 11 is a schematic structural view of a heat-conducting member;

FIG. 12 is a schematic structural diagram of a heat conducting mechanism;

FIG. 13 is a schematic view of the positioning mechanism;

FIG. 14 is a schematic view of the cross plate positioning device; FIG. 15 is a side view of the cross plate positioning device;

fig. 16 is a schematic view of a riser positioning device;

FIG. 17 is an enlarged view of the area A of FIG. 9 and a schematic view of the positioning mechanism;

fig. 18 to 20 are schematic views illustrating a welding process of the air duct and the mounting bracket;

fig. 21 and 22 are schematic structural views of a first robot;

fig. 23 and 24 are schematic structural views of a second robot and a fifth robot;

fig. 25 and 26 are schematic structural views of the third robot and the fourth robot.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 17, an air duct 100 forming line relates to an air duct 100 for installing fan blades and a motor, and comprises a transfer device 6, and a feeding station 101, a flanging station (1,2, 3'), a punching station 4, a welding station 5 and a blanking station 102 which are sequentially arranged, wherein the feeding station 101 and the blanking station 102 are preferably conveyor belt transmission mechanisms.

The flanging station (1,2,3) is used for forming a flanging at the port of the air duct 100, wherein the flanging station (1,2, 3') comprises at least one of a first flanging station 1, a second flanging station 2 and a third flanging station 3, the flanging station (1,2,3) of the embodiment comprises the first flanging station 1, the second flanging station 2 and the third flanging station 3, the first flanging station 1 is used for forming an arc-shaped flanging at the port of the air duct 100, the second flanging station 2 is used for forming a straight flanging at the port of the air duct 100, the third flanging station 3 is used for forming a straight flanging at the port of the air duct 100, the punching station 4 is used for punching a hole in the flanging, and the welding station 5 is used for welding the mounting frame 200 for assembling a motor in the air duct 100.

The air duct structure design method comprises the steps that a first flanging station 1, a second flanging station 2, a third flanging station 3, a punching station 4 and a welding station 5 are selected selectively according to the structural design requirement of the air duct, the first flanging station, the second flanging station, the third flanging station 3, the punching station 4 and the welding station 5 are combined with a feeding station 101 and a discharging station 102 to form working stations, and the transfer device 6 is used for transferring the air duct 100 between adjacent working stations.

Referring to fig. 2, the first flanging station 1 includes a first flanging frame 11, a tensioning mechanism 7 and a first lifting platform 12 which are disposed on the first flanging frame 11, and a first flanging mechanism 13 which is disposed on the first lifting platform 12, the tensioning mechanism 7 is used for fixing the wind pipe 100 and driving the wind pipe 100 to rotate, the first flanging mechanism 13 includes three first primary rollers 131 and a first edge-closing shaping wheel 132 which are disposed on the periphery of the tensioning mechanism 7, the first primary rollers 131 have curved surfaces which gradually contract from bottom to top, the first flanging mechanism 131 has a first primary roller 131, a circle of first forming grooves 1321 is annularly arranged on the side portion of the first edge-closing shaping wheel 132, the parts of the first edge-closing shaping wheel 132, which are positioned on the upper side and the lower side of the first forming grooves 1321, respectively extend outwards to form first process steps 1322, the first lifting platform 12 drives the first flanging mechanism 13 to move up and down relative to the tensioning mechanism 7. The first prototype roller 131 and the first edge-closing shaping wheel 132 are respectively driven by a first servo motor driving device 14 to move towards the tensioning mechanism 7 so as to facilitate the alignment of the first flanging mechanism 13, the first servo motor driving device 14 respectively comprises a servo motor and a transmission mechanism connected with the servo motor, and the transmission mechanism can be an existing screw rod sliding seat transmission mechanism.

When the first flanging station 1 is used for flanging, the tensioning mechanism 7 fixes the air duct 100 and rotates, the first lifting platform 12 rises to drive the first prototype roller 131 to feed upwards to contact with the inner side wall of the air duct 100 so as to pull out an arc-shaped flanging on the port of the air duct 100, and then the first edge-closing shaping wheel 132 feeds radially to lightly press the outer edge of the flanging to trim, so that the end part of the flanging is folded under the abutting action of the first forming groove 1321 and the first process step 1322.

Referring to fig. 3, the second flanging station 2 includes a second flanging frame 21, a tensioning mechanism 7 disposed on the second flanging frame 21, a second flanging mechanism 22, and a fine-tuning assembly 23, where the tensioning mechanism 7 is configured to fix the air duct 100 and drive the air duct 100 to rotate, the second flanging mechanism 22 includes a second primary roller 221, a second straight-side roller set (222,223), and a second edge-folding shaping wheel 224, which are disposed around the tensioning mechanism 7, the second primary roller 221 is a circular truncated cone that contracts from bottom to top, the second straight-side roller set (222,223) includes a second upper pressing wheel 222 and a second lower pressing wheel 223, a circle of second forming groove 2241 is annularly disposed on a side portion of the second edge-folding shaping wheel 224, portions of the second edge-folding shaping wheel 224, which are located on upper and lower sides of the second forming groove 2241, respectively extend outward to form a second technical step 2242, the fine-tuning assembly 23 includes a fixed wheel 231, and a driving wheel 232, which is located on a lower side of the fixed wheel 231, And a first hydraulic cylinder 233 driving the movable sheave 232 up and down. The second prototype roller 221, the second straight-side wheel sets (222,223), the second edge-closing shaping wheel 224 and the fine-tuning assembly 23 are respectively driven by the second servo motor driving device 24 to move towards the tensioning mechanism 7, the second lower pressing wheel 223 is driven by the first pressing wheel servo motor driving device 225 to move radially relative to the second upper pressing wheel 222, the second servo motor driving device 24 and the first pressing wheel servo motor driving device 225 respectively comprise a servo motor and a transmission mechanism connected with the servo motor, and the transmission mechanism can be an existing screw rod sliding seat transmission mechanism.

When the second flanging station 2 is adopted for flanging, the second prototype roller 221 feeds and presses the outer side wall of the air duct 100 to enable the outer side wall to slightly deform to form a step-shaped structure, then the second upper pressing wheel 222 presses against the upper side of the step, the second lower pressing wheel 223 presses against the lower side of the step in the air duct and feeds outwards to pull out a straight flanging, then the second edge-closing shaping wheel 224 radially feeds the outer edge of the lightly-pressed flanging to trim, and the end part of the flanging is turned over under the pressing action of the second forming groove 2241 and the second process step 2242. When fine adjustment is needed, before the second edge-closing shaping wheel 224 is fed, the fixed wheel 231 and the movable wheel 232 are respectively arranged on the upper side and the lower side of the flanging, the fixed wheel 231 is pressed against the upper side of the flanging, the movable wheel 232 is fed upwards from the lower side of the flanging, and the fixed wheel 231 and the movable wheel 232 are mutually extruded, so that the outer edge of the flanging is upwarped.

Referring to fig. 4, the third flanging station 3 includes a third flanging frame 31, a tensioning mechanism 7 disposed on the third flanging frame 31, a third flanging mechanism 32, and a rib adding mechanism 33, the tensioning mechanism 7 is configured to fix the air duct 100 and drive the air duct 100 to rotate, the third flanging mechanism 32 includes a third primary roller 321, a third straight-edge roller set (322,323), and a third edge-closing shaping wheel 324 disposed around the tensioning mechanism 7, the third primary roller 321 is a circular truncated cone that contracts from bottom to top, the third straight-edge roller set (322,323) includes a third upper pressing wheel 322 and a third lower pressing wheel 323, a circle of a third forming groove 3241 is annularly disposed on a side portion of the third edge-closing shaping wheel 324, portions of the third edge-closing shaping wheel 324 on upper and lower sides of the third forming groove 3241 respectively extend outward to form a third process step 3242, the rib adding mechanism 33 includes a plurality of tensioning pressing wheels 331 longitudinally disposed outside the tensioning mechanism 7, the outer side surface of the ribbed pressing wheel 331 is provided with a convex part 332 for forming ribs. The third prototype roller 321, the third straight-side wheel set (322,323) and the third edge-closing shaping wheel 324 are respectively driven by a third servo motor driving device 34 to move towards the tensioning mechanism 7, the third lower pressing wheel 323 is driven by a second pressing wheel servo motor driving device 325 to move radially relative to the third upper pressing wheel 322, the ribbed pressing wheel 331 is driven by a fourth hydraulic cylinder 333 to move towards the tensioning mechanism 7, the third servo motor driving device 34 and the second pressing wheel servo motor driving device 325 respectively comprise a servo motor and a transmission mechanism connected with the servo motor, and the transmission mechanism can be an existing screw rod sliding seat transmission mechanism.

When the third flanging station 3 is used for flanging, the third prototype roller 321 feeds and presses the outer side wall of the air duct 100 to slightly deform the air duct to form a step-shaped structure, then the third upper pressing wheel 322 presses against the upper side of the step, the third lower pressing wheel 323 presses against the lower side of the step in the air duct and feeds outwards to pull out a straight flanging, then the third edge-closing shaping wheel 324 feeds the outer edge of the lightly-pressed flanging radially to trim, and the end part of the flanging is folded under the pressing action of the third forming groove 3241 and the third process step 3242. When reinforcement is needed, the reinforcement pressing wheel 331 is radially fed to press against the outer side wall of the air duct 100 so as to press out a corresponding number of ribs on the outer side wall.

Referring to fig. 5 and 6, the punching station 4 includes a punching frame 41, a tensioning mechanism 7 disposed on the punching frame 41, a punching mechanism 42, and a fixing frame 43, where the tensioning mechanism 7 is configured to fix the wind pipe 100 and selectively drive the wind pipe 100 to intermittently rotate, the fixing frame 43 is disposed outside the tensioning mechanism 7 and is configured to support a flange of the wind pipe 100, the punching mechanism 42 includes a lower die 421, an upper die 422 and a second hydraulic cylinder 423 disposed on an upper side of the lower die 421, and a cylinder driving device (not shown in the cylinder driving device), a cylinder body of the second hydraulic cylinder 423 is relatively fixedly connected to the lower die 421, a piston rod of the second hydraulic cylinder is relatively fixedly connected to the upper die 422, the cylinder driving device drives the cylinder body to move up and down, when punching is performed, the piston rod extends out to drive the upper die 422 to abut against an upper end surface of the flange, the cylinder driving device drives the cylinder body to move up to drive the lower die 421 to move up, meanwhile, the piston rod continuously extends out to keep the upper die 422 to abut against the upper end face of the flanging, so that the lower die 421 is driven to punch a hole on the flanging from bottom to top, the punching mechanism 42 is arranged in a mode of punching from the lower side to the upper side, and burrs generated during punching face towards one side far away from the corresponding port, so that the existing grinding process is omitted.

As a specific arrangement, two sets of the punching mechanisms 42 are oppositely arranged and used for punching holes at positions on the flange every 90 degrees, and the specific operation mode is that after one punching is completed, the air duct 100 rotates 90 degrees and then another punching is performed.

Referring to fig. 8 to 12, the welding station 5 is used for welding the air duct 100 and the mounting rack 200, the mounting rack 200 includes a transverse plate h21 and a vertical plate h22, the welding station 5 includes a workbench h3, a welding gun h4, a positioning mechanism h5 and a heat conduction mechanism h6, a rotary seat h32 is arranged on the workbench h3, the rotary seat h32 can rotate relative to the workbench h3, the positioning mechanism h5 is respectively arranged on two opposite sides of the rotary seat h32, the positioning mechanism h5 is used for installing the air duct 100 and fixing the mounting rack 200 to be welded, the rotary seat h32 selectively rotates to realize that the two positioning mechanisms h5 alternately weld, the welding efficiency can be improved by arranging the rotary seat h32, and the positioning cylinder 53 is arranged on the positioning mechanism h 5. The moving track of the welding gun h4 is controlled by a welding gun driving device h41, preferably, the welding gun driving device h41 is a six-axis manipulator, and the flexibility of the welding gun h4 during moving can be improved by adopting the six-axis manipulator.

Referring to fig. 8, 9, 11 and 12, the heat conducting mechanism h6 is disposed at a side portion of the positioning mechanism h5, and includes a heat conducting member h61 and a heat conducting member driving cylinder h62 for driving the heat conducting member h61 to move toward the positioning mechanism h 5. Specifically, heat conduction mechanism h6 corresponds and is equipped with threely, including first heat conduction mechanism h601, second heat conduction mechanism h602 and third heat conduction mechanism h603, the heat-conducting member h61 of first heat conduction mechanism h601 and third heat conduction mechanism h603 corresponds the relative both ends of diaphragm h21 respectively with the dryer 100 lateral wall of dryer 100 welding position, the heat-conducting member h61 of second heat conduction mechanism h602 corresponds the dryer 100 lateral wall of riser h22 and dryer 100 welding position. The heat conducting mechanism h6 is used for being arranged on the position, corresponding to the welding position of the mounting frame 200 and the inner side wall of the air duct 100, of the outer side wall of the air duct 100 during welding, heat is transferred away, the area of the heat conducting piece can be reduced by the targeted heat dissipation mode, and material cost is effectively reduced.

Referring to fig. 8, 9, 11 and 12, as a specific arrangement, the heat conducting member h61 includes a base h611, a heat conducting member support h612 and a heat conducting portion h613 for abutting against the outer side wall of the wind barrel 100, the base h611 is connected to the piston rod of the heat conducting member driving cylinder h62, the heat conducting portion h613 is disposed on the base h611 through the heat conducting member support h612, an installation groove h6121 is disposed in the middle of the heat conducting member support h612, the heat conducting portion h613 is disposed in the installation groove h6121, the heat conducting portion h613 is connected to the base h611 through an elastic connector h614 in a floating manner, the elastic connector h614 is preferably a spring, so that the heat conducting portion h613 compresses the elastic connector h614 when receiving an external force and moves toward the base h611 relative to the heat conducting member support h612, the external force, such as a reaction force received when abutting against the surface of the wind barrel 100, and the heat conducting portion h613 can adapt to the surface of the wind barrel 100 to make the wind barrel 100 contact more tightly, thereby improving the heat dissipation effect.

Referring to fig. 11, as a specific embodiment, the heat conducting portion h613 is composed of a plurality of single bodies (h6131, h6132) which are vertically arranged, each single body (h6131, h6132) is respectively composed of a copper block h6131 positioned at two sides thereof and tungsten steel h6132 positioned between the copper blocks h6131 at two sides, each single body (h6131, h6132) is connected with the base h611 through an elastic connecting piece h614, because the tungsten steel h6132 has good heat resistance, can bear higher temperature during welding, ensures the stability of the structure of the heat conducting part h613, combines the copper blocks h6131 positioned at two sides, thereby absorbing the heat on the surface of the wind tube 100 during welding, preventing heat accumulation, improving the heat dissipation effect on the surface of the wind tube 100, meanwhile, the arrangement mode of the single bodies (h6131 and h6132) can enable each single body (h6131 and h6132) to be attached to the surface of the air duct 100 in an adaptive mode through the elastic floating piece h614, and therefore adaptive adjustment can be conducted according to radians of different positions on the surface of the air duct 100.

Referring to fig. 13 to 15, as a specific embodiment, the positioning mechanism h5 includes a transverse plate positioning device h51 and a vertical plate positioning device h52, the transverse plate positioning device h51 includes a mounting seat h511, a supporting frame h512 disposed in front of the mounting seat h511, a baffle h514 movably disposed in back of the supporting frame h512, clamping assemblies h513 disposed on opposite sides of the supporting frame h512, and a first clamping cylinder h5132 for driving the clamping assemblies h513 to clamp or release the transverse plate h21, the supporting frame h512 is provided with a slot 5121 with an open upper side, and the slot h5121 is used for placing the transverse plate h 21.

Referring to fig. 13 to 15, each clamping assembly h513 includes a top plate h5131 mounted on the upper side of the mounting seat h511, a connecting arm h5133 and a clamping arm h5134 disposed on the front side of the mounting seat h511, wherein a first clamping cylinder h5132 is disposed on the lower side of the mounting seat h511 and is rotatably connected to the mounting seat h511, a piston rod of the first clamping cylinder h5132 faces the bottom of the mounting seat h511, one end of the connecting arm h5133 is hinged to the piston rod of the first clamping cylinder h5132, the other end of the connecting arm h5133 is fixedly connected to the clamping arm h5134, a portion of the connecting arm h5133 between the piston rod of the first clamping cylinder h5132 and the clamping arm h5134 is hinged to a side portion of the supporting frame h512, and the clamping arm h5134 includes a clamping piece h5135 swingably disposed on a side close to the top plate h 5131.

Referring to fig. 13 and 16, the vertical plate positioning device h52 comprises two clamping plates h522 and a second clamping cylinder h521 which are arranged on the front side of the clamping arm h5134, a guide post h523 is arranged between the upper parts of the two clamping plates h522, the clamping plates h522 can move along the guide post h523, and the guide post h523 is used for supporting a vertical plate h22 arranged between the two clamping plates h 522.

Referring to fig. 8, 9 and 13, as an improved scheme, the positioning mechanism h5 further includes a heightening seat h54, a through hole h541 is formed in the middle of the heightening seat h54, the transverse plate positioning device h51 and the vertical plate positioning device h52 are respectively disposed in the through hole h541, the air duct 100 is supported on the upper side of the heightening seat h54, and the heightening seat h54 is vertically adjustable relative to the workbench h3 to adapt to the air ducts 100 with different heights and the mounting frames 200 with different mounting heights.

Referring to fig. 10, as a specific embodiment, a positioning hole h211 is formed in the middle of the horizontal plate h21, a connecting protrusion h221 connected with the positioning hole h211 is formed on one side of the vertical plate h22, and the welding process of the mounting bracket 200 and the air duct 100 includes the following steps:

s01, referring to fig. 14 and 17, the mounting rack 200 is placed on the positioning mechanism h5 and positioned by the positioning mechanism h5, specifically, the transverse plate h21 is placed between the top plate h5131 and the clamping piece h5135 of the transverse plate positioning device h51 and is supported on the slot h5121, as shown in fig. 14, the piston rod of the first clamping cylinder h5132 is retracted, the connecting arm h5133 swings anticlockwise, the clamping arm h5134 is driven to swing towards one side close to the top plate h5131, so that the transverse plate h21 placed on the slot h5121 is clamped between the top plate h5131 and the clamping piece h5135, and meanwhile, the clamping piece h5135 can self-adaptively adjust the swing angle when clamping the transverse plate h21, so that the transverse plate h21 is better adapted to clamp the transverse plate h 21.

As shown in fig. 10, 15 and 16, the vertical plate h22 is placed between the two clamping plates h522, the baffle plate h514 abuts against the transverse plate h21 and is located on one side opposite to the vertical plate h22 to shield the positioning hole h211, the connecting convex part h221 is inserted into the positioning hole h211 and is limited by the baffle plate h514, the limitation means that the connecting convex part h221 abuts against the baffle plate h514 and cannot penetrate out of the positioning hole h211, the second clamping cylinder h521 drives the two clamping plates h522 to approach towards each other along the guide post h523 to clamp the vertical plate h22, and therefore the current relative positions of the transverse plate h21 and the vertical plate h22 are fixed.

s02, as shown in fig. 8, 9 and 17, the air duct 100 is sleeved outside the positioning mechanism h5, so that the air duct 100 is placed on the raised seat h54, the positioning cylinder 53 pushes the inner side wall of the air duct 100 to one side opposite to the mounting frame 200, so that the vertical plate h22 abuts against the inner side wall of the air duct 100, thereby supporting the air duct 100 at the opposite ends respectively, so as to limit the degree of freedom of the air duct 100 in the horizontal direction, so as to prevent the air duct from deviating when the subsequent rotating seat h32 rotates, and due to the limiting effect of the baffle plate h514, the current position relationship between the vertical plate h22 and the transverse plate h21 makes the inner side wall of the air duct 100 abutting against the vertical plate h22 not abut against the transverse plate h 21.

s03, as shown in fig. 8, 9 and 17, the rotary base rotates to transfer the wind tunnel 100 and the mounting bracket 200 located on the positioning mechanism h5 to the area to be welded.

s04, as shown in fig. 18, the heat-conducting member driving cylinder h62 of the second heat-conducting mechanism h602 drives the heat-conducting member h61 to move toward the mounting rack 200, and pushes and abuts against the outer side wall of the air duct 100 corresponding to the vertical plate h22, so that the inner side wall of the air duct 100 is tightly attached to the vertical plate h 22.

s05, as shown in (r) of fig. 18, the welding torch h4 welds the position where the riser h22 contacts the air duct 100, that is, the position where the riser h22 is welded to the air duct 100.

s06, as shown in fig. 18 and 19, the baffle h514 is withdrawn, the heat conducting member of the second heat conducting mechanism h602 drives the air cylinder h62 to drive the heat conducting member h61 to push the air duct 100 continuously, and under the pushing action of the second heat conducting mechanism h602, the vertical plate h22 and the air duct 100 displace to one side close to the horizontal plate h21, so that the connecting convex portion h221 penetrates out of the positioning hole h211 and extends out to one side of the horizontal plate h21 opposite to the vertical plate h22, and the gap between the inner side wall of the air duct 100 and the horizontal plate h21 is reduced.

s07, as shown in fig. 19, the heat-conducting member driving cylinders h62 of the first heat-conducting mechanism h601 and the third heat-conducting mechanism h603 drive the heat-conducting members h61 to move toward the mounting frame 200, and push and abut against the outer side walls of the air duct 100 corresponding to the two ends of the transverse plate h21, so that the inner side walls of the air duct 100 abut against the transverse plate 22.

s08, as shown in the ② and the ③ of fig. 19, the welding gun h4 welds the position where the transverse plate h21 contacts the air duct 100, namely the welding position of the transverse plate h21 and the air duct 100.

s09, as shown in fig. 19 and 20, the heat conducting members h61 of the first heat conducting mechanism h601, the second heat conducting mechanism h602 and the third heat conducting mechanism h603 are separated from the outer side wall of the air duct 100, as shown in the fourth part of fig. 20, the welding gun h4 welds one side surface of the transverse plate h21 relative to the vertical plate h22 and the part of the connecting convex part h221 penetrating through the positioning hole h211, so as to weld the transverse plate h21 and the vertical plate h 22.

s10, as shown in fig. 14 to 16, the piston rod of the first clamping cylinder h5132 extends, the connecting arm h5133 swings clockwise to drive the clamping arm h5134 to swing to the side far away from the top plate h5131, so as to release the transverse plate h21, and the second clamping cylinder h521 drives the two clamping plates h522 to relatively move away from the release vertical plate h22 along the guide post h523, so as to release the mounting rack 200.

Welding set is through arranging heat-conducting piece h61 on the lateral wall that corresponds mounting bracket 200 and the 100 inside wall welded position of dryer 100 at dryer 100, on the one hand, can play quick heat conduction's effect when the welding, make the welding can not dialyze, dryer 100 surface keeps smooth and flat, and because the radiating effect has been improved, therefore can not appear because the welding is the condition such as the face of weld warp that leads to because the instantaneous heat accumulation of welding, avoid dryer 100 surface unevenness, the level and smooth technology of polishing that has saved current welding, more be favorable to the manufacturing, on the other hand, because can relative activity between dryer 100 and the mounting bracket 200, it can ensure to be connected closely between dryer 100 and the mounting bracket 200 to arrange heat-conducting piece h61 on dryer 100 lateral surface, improve welded effect.

In addition, because the existing air duct 100 is mainly made of thin plates, the air duct is easy to deform during high-temperature welding, and meanwhile, because the transverse plate h21 and the vertical plate h22 cannot be welded at the same time, the welding sequence can directly influence the welding effect, for example, when the two ends of the transverse plate h21 are welded firstly, the welded air duct 100 has larger deformation, so that a larger gap exists between the air duct 100 and the vertical plate h22, and the gap is large enough to be filled by welding, thereby reducing the qualification rate of products, based on the problems, when the vertical plate h22 is welded, because the limit of the baffle plate h514, the inner side wall of the air duct 100 abutting against the vertical plate h22 can not contact with the transverse plate h21, so that the transverse plate h21 can not influence the welding of the vertical plate h22 and the air duct 100, after the vertical plate h22 is welded, the baffle plate h514 is withdrawn, the heat conducting piece h61 of the second heat conducting mechanism h602 continuously pushes the air duct 100, so that the vertical plate h22 welded on the air duct 100 and the air duct 100 can move to one side close to the transverse plate h21, the connecting convex part h221 is driven to penetrate out of the positioning hole h211, so that the inner side wall of the air duct 100 is in contact with the transverse plate h21, sufficient contact area between the vertical plate h22 and the transverse plate h21 is guaranteed, the welding effect is improved, and the problem that the vertical plate h22 cannot be welded due to the fact that the transverse plate h21 is welded in advance to cause the shape of the air duct 100 to be enlarged in the prior art is solved.

Referring to fig. 18 and 19, as an improved scheme, during welding, the heat conducting member h61 is tangent to the outer side wall of the air duct 100 at a position corresponding to the welding position of the mounting bracket 200 and the air duct 100, and because the heat accumulation phenomenon at the welding position is most obvious during welding, and the heat radiation effect of the heat conducting member h61 at the tangent point is strongest, the arrangement mode can effectively improve the surface heat radiation effect of the air duct 100, and ensure that the surface is smooth and flat. In order to further improve the heat conduction efficiency, the tangent point of the heat conducting piece h61 and the outer side wall of the air duct 100 corresponds to the center line position of the thickness of the mounting frame 200 at the welding position, namely the center line position of the thicknesses of the transverse plate h21 and the vertical plate h22, the tangent point can be aligned to the middle part of the welding position as much as possible by the arrangement, so that the heat conduction capability is enhanced, and particularly, when the heat conducting piece h61 is abutted against the outer side wall of the air duct 100, the position of the tangent point is located on the tungsten steel h 6132.

Referring to fig. 6 and 7, the tensioning mechanism 7 includes a third hydraulic cylinder 71, a guide rod 72, and a tensioning assembly 73, the third hydraulic cylinders 71 are respectively fixed to the lower sides of the corresponding frames, the guide rod 72 is connected to the output end of the third hydraulic cylinder 71 and driven by the third hydraulic cylinder 71 to move up and down, the tensioning assembly 73 is rotatably disposed on the upper side of the frame and driven by a second rotation driving device 74 to rotate, in a specific embodiment, the second rotary driving device 74 includes a rotary shaft sleeve 741 and a rotary driving motor 742, the mounting base 75 is disposed on the lower side of the frame, the rotary shaft sleeve 741 and the rotary driving motor 742 are mounted on the mounting base 75, the third hydraulic cylinder 71 is mounted on the lower side of the mounting base 75, the rotary shaft sleeve 741 extends upward to be connected with the tensioning assembly 73, and the rotary driving motor 742 is in transmission connection with the rotary shaft sleeve 741 through a transmission gear to drive the rotary shaft sleeve 741 to rotate so as to drive the tensioning assembly 73 to rotate.

The tensioning assembly 73 comprises a tensioning bracket 731, a driving member 732 and a wedge 733, the tensioning bracket 731 is fixedly connected with the rotating shaft sleeve 741, the guide rod 72 penetrates through the rotating shaft sleeve 741 and extends upwards into the tensioning bracket 731, the driving member 732 is movably connected with the tensioning bracket 731 up and down and is rotatably clamped on the guide rod 72, a bearing 734 is connected between the driving member 732 and the guide rod 72, a limiting structure 721 which is clamped at the upper end and the lower end of the driving member 732 and can drive the driving member 732 to move synchronously is arranged on the guide rod 72, a plurality of wedges 733 are arranged around the guide rod 72 and can be movably arranged at the side part of the tensioning bracket 731 inside and outside, an elastic resetting member which drives the wedge 733 to reset inwards is arranged between the tensioning bracket 731 and the wedge 733, an abutting member 75 which abuts against the inner side wall of the air duct 100 is connected at the outside of the wedge 733, tapered surfaces 7321 which shrink downwards are respectively arranged at the side part of the driving member 732, the inner side surface of the wedge 733 is in sliding fit with the tapered surface 7321; the guide rod 72 drives the driving member 732 to move downwards to push out the wedge 733 so as to tension the air duct 100, the guide rod 72 moves upwards to drive the driving member 732 to move upwards so as to reset the wedge 733 inwards to move and loosen the air duct 100, and the tension mechanism 7 has a simple structure, is rapid in response, and can stably and reliably fix the air duct 100.

Referring to fig. 1, the transfer device 6 includes a rail 66 disposed along the station arrangement direction, and five robots movable along the rail 66, where a rail rack is disposed on the rail 66, and the five robots include a first robot 61, a second robot 62, a third robot 63, a fourth robot 64, and a fifth robot 65 disposed in this order. In a specific embodiment, the first robot 61 is used for transferring the air duct 100 between the feeding station 101 and the next station of the working stations located at the feeding station 101, the second robot 62 is used for transferring the air duct 100 between the flanging stations (1,2,3), the third robot 63 is used for transferring the air duct 100 between the flanging stations (1,2,3) and the punching station 4, the fourth robot 64 is used for transferring the air duct 100 between the punching station 4 and the next station of the working stations located at the punching station 4, and the fifth robot 65 is used for transferring the air duct 100 between the welding station 5 and the blanking station 102.

Referring to fig. 21 to 26, the five manipulators each include a sliding base 601, a bracket 602, a sliding motor 603, and a lifting driving device, the sliding base 601 of each manipulator is slidably disposed on the rail 66, the sliding motor 603 is disposed on the sliding base 601, an output end of the sliding motor is engaged with a rack of the rail through a gear, so that the manipulator moves on the rail, the bracket 602 is disposed on a lower side of the sliding base 601 and is driven by the lifting driving device to move up and down, the lifting driving device includes a lifting rack 6041 and a lifting motor 6042, the lifting rack 6041 is movably disposed on the sliding base 601 up and down, a lower end of the lifting rack 6041 is fixedly connected with the bracket 602, and the lifting motor 6042 is in transmission connection with the lifting rack 6041 through a gear, so that the driving rack moves up and down.

Referring to fig. 21 and 22, the first manipulator 61 further includes a first clamp 610, the first clamp 610 is disposed on a support 602 thereof, in a specific embodiment, the first clamp 610 includes a first mounting plate 611, two first grippers 612 oppositely disposed on the first mounting plate 611, a first gripper driving device and a first rotation driving device, the first gripper driving device includes a first motor 613, a linkage gear, a first rack 614 and a second rack 615, the first motor 613 is disposed on the support 602, the linkage gear is provided with a first driving wheel 616, a first driven wheel 617 and a first shaft 618 connecting the first driving wheel 616 and the first driven wheel 617, the first driving wheel 616 is in transmission connection with the first motor 613, the first driven wheel 617 is disposed on the first mounting plate 611, the first rack 614 and the second rack 615 are relatively engaged with two sides of the first driven wheel 617 and are respectively fixedly connected with one of the first grippers 612, the first motor 613 drives the two first grippers 612 to synchronously move toward or away from each other through the linkage gear, so as to adapt to air ducts 100 with different sizes. Preferably, a sensor 6121 for detecting a weld is disposed on the first gripper 612, and the air duct 100 is rotated by the first rotation driving device according to the position of the weld on the air duct 100, so as to perform alignment for subsequent processes.

The first rotary driving device includes a rotary motor 6191 and a shaft sleeve 6192, the lower end of the shaft sleeve 6192 is fixedly connected with the first mounting plate 611, the upper end of the shaft sleeve 6192 is rotatably connected with the bracket 602, the rotary motor 6191 is arranged on the bracket 602 and is in transmission connection with the shaft sleeve 6192 through a gear, the first shaft 618 is arranged in the shaft sleeve 6192 in a penetrating manner, and the rotary motor 6191 drives the tensioning bracket 731 to rotate so as to drive the first mounting plate 611 to rotate.

Referring to fig. 23 and 24, the second robot arm 62 and the fifth robot arm 65 each further include a second fixture 620, and the second fixtures 620 are respectively disposed on the supports 602 corresponding to the second robot arm 62 and the fifth robot arm 65. In a specific arrangement mode, the second clamp 620 includes two second grippers 622 oppositely disposed on the support 602 thereof, and a second gripper driving device, the second gripper driving device includes a second motor 623, a second belt transmission assembly 624 and a second lead screw 625 disposed on the support 602 thereof, the second gripper 622 includes a second clamping arm 626 in threaded connection with the second lead screw 625, and a second clamping block 627 disposed on the second clamping arm 626 and driven to rotate by an air cylinder 628, the second motor 623 drives the second lead screw 625 to rotate through the second belt transmission assembly 624, so as to drive the two second grippers 622 to approach towards or move away from each other, so as to adapt to air ducts 100 with different sizes.

Referring to fig. 25 and 26, the third robot 63 and the fourth robot 64 further include a third fixture 630, the third fixture 630 is respectively disposed on the corresponding supports 602 of the third robot 63 and the fourth robot 64, in a specific embodiment, the third fixture 630 includes a third mounting plate 631, two third grippers 632 oppositely disposed on the third mounting plate 631, a third gripper driving device and a third longitudinal driving device, the third mounting plate 631 is movably disposed on the lower side of the corresponding support 602, the third gripper driving device includes a third motor 633 disposed on the third mounting plate 631, a third belt transmission assembly 634 and a third lead screw 635, the third gripper 632 includes a third gripper arm 636 in threaded connection with the third lead screw 635 and a third gripper block 637 disposed on the third gripper arm 636 and driven by the air cylinder 6321 to rotate, the third motor 633 drives the third lead screw 635 to rotate by the third belt transmission assembly 634, thereby driving the two third hand grips 632 to approach toward or move away from each other to fit the air ducts 100 with different sizes.

The third longitudinal driving device comprises a fourth motor 638 and a third rack 639, the third rack 639 is longitudinally disposed on the third mounting plate 631, the fourth motor 638 is disposed on the bracket 602, and is in transmission connection with the third rack 639 through a gear, so as to drive the third mounting plate 631 to move longitudinally.

Compared with the prior art, the forming line provided by the invention is integrated with a feeding station 101, flanging stations (1,2,3), a punching station 4, a welding station 5 and a blanking station 102, the connection among the stations is realized through a transfer device 6, so as to realize the automatic production of the air duct 100, meanwhile, three different flanging stations (1,2,3) are provided, the selection can be made from the three flanging stations according to the actual design requirements of products, so as to meet the requirements of product structures, whether punching is needed on flanging and whether the mounting frame 200 needs to be welded on the flanging, and the selection or non-selection of the punching station 4 and the welding station 5 can be made according to the actual conditions, therefore, the forming line of the air duct 100 provided by the invention can be suitable for producing the air ducts 100 with different design requirements, has strong universality, and forms a working station adapted to the products by combining the required stations, the automatic production can be completed by matching with the transfer device 6, and compared with the existing production mode that workpieces need to be transferred manually, the automatic production device has high automation degree and high efficiency.

The following provides a specific implementation process of selecting a station:

when one end of the air duct 100 to be produced is an arc-shaped flanging and the other end is a straight flanging, the selected station can be confirmed to comprise a first flanging station 1.

Then, a station of the flanging edge is selected from the second flanging station 2 and the third flanging station 3: if fine adjustment operation needs to be carried out on the straight flanging, a second flanging station 2 is determined to be selected; if ribs need to be added on the outer side wall of the air duct 100, a third flanging station 3 is selected; if fine adjustment operation of the straight flanging is required and ribs are required to be added on the outer side wall of the air duct 100, a second flanging station 2 and a third flanging station 3 are selected; if only need turn over straight turn-ups and need not finely tune the turn-ups to and do not need to add the muscle, then can be in second turn-ups station 2 and third turn-ups station 3 arbitrary selection one.

When both ends of the air duct 100 to be produced are straight flanging, the selection of the second flanging station 2 and the third flanging station 3 can be confirmed, and if fine tuning operation of the straight flanging is required and ribs are required to be added, the fine tuning mechanism of the second flanging station 2 and the rib adding mechanism 33 of the third flanging station 3 can be called according to actual conditions.

When only one end of the air duct 100 to be produced is provided with the straight flanging, the second flanging station 2 or the third flanging station 3 is selected according to whether the straight flanging needs to be subjected to fine adjustment operation and whether ribs need to be added, and if the straight flanging does not need to be subjected to fine adjustment and rib addition, one of the second flanging station 2 and the third flanging station 3 can be selected at will.

And then, if punching is needed on the flanging, selecting a punching station 4, otherwise, not selecting.

Then, if the mounting frame 200 needs to be welded in the air duct 100, the welding station 5 is selected, otherwise, the welding station is not selected.

After the stations are selected, the feeding station 101, the selected stations and the blanking station 102 are combined to form a working station for producing the air duct 100, and the control module of the forming line is matched with the manipulator of the transfer device 6 according to the working station to transfer the air duct 100 of the adjacent station in the working station.

For example, when the air duct 100 with two ends being straight flanged edges, requiring fine adjustment of the straight flanged edges, requiring ribs to be added to the outer side wall of the air duct 100, requiring holes to be punched in the flanged edges and requiring welding of the mounting bracket 200 is produced, a feeding station 101, a second flanging station 2, a third flanging station 3, a punching station 4, a welding station 5 and a blanking station 102 are selected to be combined to form a working station, according to the working station, a first manipulator to a fifth manipulator in the transfer device 6 are allocated, the first manipulator 61 transfers the air duct 100 on the feeding station 101 to the second flanging station 2 for straight flanging operation and fine adjustment of the straight flanged edges, the second manipulator 62 turns over the air duct 100 on the second flanging station 2 and transfers the air duct 100 to the third flanging station 3 for straight flanging operation and fine adjustment, the third manipulator 63 transfers the ribs 100 on the third flanging station 3 to the punching station 4 for punching operation, the fourth manipulator 64 transfers the air duct 100 on the punched hole to the welding station 5 for welding operation, and the fifth manipulator 65 transfers the air duct 100 on the welding station 5 to the blanking station 102.

For another example, when the air duct 100 with one end being an arc-shaped flanging and the other end being a straight flanging, requiring ribs to be added on the outer side wall of the air duct 100, requiring holes to be punched on the flanging and requiring welding of the mounting bracket 200 is produced, the feeding station 101, the first flanging station 1, the third flanging station 3, the punching station 4, the welding station 5 and the blanking station 102 are selected to be combined to form a working station, according to the working station, the first to fifth manipulators in the transfer device 6 are allocated, the first manipulator 61 transfers the air duct 100 on the feeding station 101 to the first flanging station 1 for arc-shaped flanging operation, the second manipulator 62 turns over the air duct 100 on the first flanging station 1 and transfers the air duct 100 to the third flanging station 3 for straight flanging operation and rib adding operation, the third manipulator 63 transfers the air duct 100 on the third flanging station 3 to the punching station 4 for punching operation, and the fourth manipulator 64 transfers the air duct 100 on the punching to the welding station 5 for welding operation, the fifth robot 65 transfers the air duct 100 on the welding station 5 to the blanking station 102.

For another example, when the air duct 100 is produced, one end of which is an arc-shaped flanging, the other end of which is a straight flanging, the straight flanging needs to be finely adjusted, the outer side wall of the air duct 100 needs to be reinforced, holes need to be punched in the flanging, and the mounting frame 200 needs to be welded, a feeding station 101, a first flanging station 1, a second flanging station 2, a third flanging station 3, a punching station 4, a welding station 5, and a blanking station 102 are selected to be combined to form a working station, according to the working station, first to fifth manipulators in the transfer device 6 are allocated, the first manipulator 61 transfers the air duct 100 on the feeding station 101 to the first flanging station 1 for arc-shaped flanging operation, the second manipulator 62 turns over the air duct 100 on the first flanging station 1 and transfers the air duct 100 to the second flanging station 2 for straight flanging operation and fine adjustment operation for straight flanging, and the second manipulator 62 transfers the air duct 100 on the second flanging station 2 to the third flanging station 3 for reinforcement operation, the third manipulator 63 transfers the air duct 100 on the third flanging station 3 to the punching station 4 for punching operation, the fourth manipulator 64 transfers the air duct 100 on the punching station to the welding station 5 for welding operation, and the fifth manipulator 65 transfers the air duct 100 on the welding station 5 to the blanking station 102.

For another example, when the air duct 100 with one end being an arc-shaped flanging and the other end being a straight flanging, requiring ribs on the outer side wall of the air duct 100 and requiring welding of the mounting bracket 200 is produced, the feeding station 101, the first flanging station 1, the third flanging station 3, the punching station 4, the welding station 5 and the blanking station 102 are selected to be combined to form working stations, according to the working stations, the first to fifth manipulators in the transfer device 6 are allocated, the first manipulator 61 transfers the air duct 100 on the feeding station 101 to the first flanging station 1 for arc-shaped flanging operation, the second manipulator 62 turns over the air duct 100 on the first flanging station 1 and transfers the air duct 100 to the third flanging station 3 for straight flanging operation and rib-adding operation, the third manipulator 63 transfers the air duct 100 on the third flanging station 3 to the punching station 4, and the punching station 4 serves as a transfer function without operation, the fourth manipulator 64 transfers the air duct 100 on the punching station 4 to the welding station 5 for welding operation, and the fifth manipulator 65 transfers the air duct 100 on the welding station 5 to the blanking station 102.

For another example, when the air duct 100 with two straight flanges at two ends and needing to be punched on the flanges is produced, the feeding station 101, the second flanging station 2, the third flanging station 3, the punching station 4 and the blanking station 102 are selected to be combined to form a working station, according to the working station, the first mechanical arm to the fourth mechanical arm in the transfer device 6 are allocated, the first mechanical arm 61 transfers the air duct 100 on the feeding station 101 to the second flanging station 2 to be subjected to the straightening and flanging operation, the second mechanical arm 62 overturns the air duct 100 on the second flanging station 2 and transfers the air duct 100 to the third flanging station 3 to be subjected to the straightening and flanging operation, the third mechanical arm 63 transfers the air duct 100 on the third flanging station 3 to the punching station 4 to be subjected to the punching operation, and the fourth mechanical arm 64 transfers the air duct 100 on the punching station 4 to the blanking station 102.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides an dryer shaping line which characterized in that, include transfer device and set gradually:

a feeding station;

the flanging station comprises at least one of a first flanging station, a second flanging station and a third flanging station, the first flanging station is used for forming an arc-shaped flanging at the port of the air duct, the second flanging station is used for forming a straight flanging at the port of the air duct, and the third flanging station is used for forming a straight flanging at the port of the air duct;

the punching station is used for punching holes on the flanging;

welding station for the mounting bracket that welding assembly motor used in the dryer, it includes welder, positioning mechanism and heat conduction mechanism, positioning mechanism is used for installing the dryer and fixes the mounting bracket of treating the welding, heat conduction mechanism is relative including controlling the heat-conducting piece that the mounting bracket removed, the mounting bracket includes diaphragm and riser, and riser one side is equipped with the connection convex part, and the diaphragm middle part corresponds it is equipped with the locating hole to connect the convex part, the heat-conducting piece includes first heat-conducting piece, second heat-conducting piece and third heat-conducting piece, during the welding, the welding position that the heat-conducting piece corresponds mounting bracket and dryer inside wall and the lateral wall looks butt of dryer, including following welding step:

s1, arranging a baffle plate for shielding the positioning hole on one side of the transverse plate, inserting the connecting convex part into the positioning hole and abutting against the baffle plate;

s2, the second heat-conducting piece is abutted against the outer side wall of the corresponding vertical plate of the air duct, so that the inner side wall of the air duct is abutted against the vertical plate;

s3, welding a vertical plate and an air duct;

s4, withdrawing the baffle, and continuously pushing the air duct by the second heat-conducting member to make the vertical plate and the air duct displace to one side close to the transverse plate, so that the connecting convex part penetrates through the positioning hole, and the gap between the inner side wall of the air duct and the transverse plate is reduced;

s5, the first heat-conducting piece and the third heat-conducting piece are abutted against the outer side walls of the two ends of the air duct corresponding to the transverse plate, so that the inner side walls of the air duct are abutted against the two ends of the transverse plate;

s6, welding the transverse plate and the air duct, and welding the transverse plate and the vertical plate;

a blanking station;

the air duct transfer device is characterized in that a flanging station, a punching station and a welding station are selected according to requirements and combined with a feeding station and a discharging station to form working stations, and the transfer device transfers air ducts between adjacent stations in the working stations.

2. The air duct forming line according to claim 1, wherein the first flanging station comprises a first flanging frame, a tensioning mechanism and a first lifting platform which are arranged on the first flanging frame, and a first flanging mechanism which is arranged on the first lifting platform, the tensioning mechanism is used for fixing the air duct and driving the air duct to rotate, the first flanging mechanism comprises a plurality of first initial rollers and a first edge-closing shaping wheel which are arranged on the periphery of the tensioning mechanism, the first initial rollers are provided with curved surfaces which gradually shrink from bottom to top, a circle of first forming grooves is annularly arranged on the side portions of the first edge-closing shaping wheel, and the portions, located on the upper side and the lower side of the first forming grooves, of the first edge-closing shaping wheel respectively extend outwards to form first process steps.

3. The air duct forming line according to claim 1, wherein the second flanging station comprises a second flanging frame, and a tensioning mechanism and a second flanging mechanism which are arranged on the second flanging frame, the tensioning mechanism is used for fixing the air duct and driving the air duct to rotate, the second flanging mechanism comprises a second primary roller, a second straight-edge wheel group and a second edge-closing shaping wheel which are arranged around the tensioning mechanism, the second primary roller is a circular table which contracts from bottom to top, the second straight-edge wheel group comprises a second upper pressing wheel and a second lower pressing wheel, a circle of second forming groove is annularly arranged on the side portion of the second edge-closing shaping wheel, and the portions, located on the upper side and the lower side of the second forming groove, of the second edge-closing shaping wheel respectively extend outwards to form a second process step.

4. The air duct forming line according to claim 3, wherein the second flanging mechanism further comprises a fine adjustment assembly arranged outside the tensioning mechanism, and the fine adjustment assembly comprises a fixed wheel, a driving wheel positioned on the lower side of the fixed wheel, and a first hydraulic cylinder driving the driving wheel to move up and down.

5. The air duct forming line according to claim 1, wherein the third flanging station comprises a third flanging frame, and a tensioning mechanism and a third flanging mechanism which are arranged on the third flanging frame, the tensioning mechanism is used for fixing the air duct and driving the air duct to rotate, the third flanging mechanism comprises a third primary roller, a third straight-edge wheel group and a third edge-closing shaping wheel which are arranged around the tensioning mechanism, the third primary roller is a circular table which contracts from bottom to top, the third straight-edge wheel group comprises a third upper pressing wheel and a third lower pressing wheel, a circle of third forming groove is annularly arranged on the side portion of the third edge-closing shaping wheel, and the portions, located on the upper side and the lower side of the third forming groove, of the third edge-closing shaping wheel respectively extend outwards to form a third process step.

6. The air duct forming line according to claim 5, wherein the third flanging station further comprises a rib adding mechanism arranged outside the tensioning mechanism, the rib adding mechanism comprises a plurality of rib adding pinch rollers longitudinally arranged, and convex portions are arranged on outer side faces of the rib adding pinch rollers.

7. The air duct forming line according to claim 1, wherein the punching station comprises a punching frame, a tensioning mechanism, a punching mechanism and a fixing frame, the tensioning mechanism is arranged on the punching frame and used for fixing the air duct and selectively driving the air duct to intermittently rotate, the fixing frame is arranged on the outer side of the tensioning mechanism and used for supporting the flanging of the air duct, the punching mechanism comprises a lower die, an upper die and a second hydraulic cylinder which are arranged on the upper side of the lower die, and a cylinder body driving device, the second hydraulic cylinder comprises a cylinder body and a piston rod, the cylinder body is relatively and fixedly connected with the lower die, the piston rod is relatively and fixedly connected with the upper die, the cylinder body driving device drives the cylinder body to move up and down, during punching, the piston rod extends out to drive the upper die to abut against the upper end face of the flanging, the cylinder body driving device drives the cylinder body to move up, and meanwhile, the piston rod continues to extend out to keep the upper end face of the flanging of the upper die, thereby driving the lower die to punch a hole on the straight turned edge from bottom to top.

8. The air duct forming line according to any one of claims 2 to 7, wherein the tensioning mechanism comprises:

the third hydraulic cylinder is fixedly arranged on the lower side of the rack;

the guide rod is connected with the output end of the third hydraulic cylinder and driven by the third hydraulic cylinder to move up and down;

the tensioning assembly is rotatably arranged on the upper side of the rack and is driven to rotate by the second rotary driving device, the tensioning assembly comprises a tensioning support, a driving piece and a wedge block, a guide rod extends upwards into the tensioning support, the driving piece can be movably connected with the tensioning support up and down and can be rotatably arranged on the guide rod in a penetrating manner, a plurality of limiting steps which are clamped at the upper end and the lower end of the driving piece so as to drive the driving piece to synchronously move are arranged on the guide rod, the wedge block is arranged around the guide rod and can be movably arranged on the side part of the tensioning support inside and outside, an elastic resetting piece for driving the wedge block to reset inwards is arranged between the tensioning support and the wedge block, an abutting piece abutted against the inner side wall of the air duct is connected to the outer side of the wedge block, a downward contracted conical surface is arranged on the side part of the driving piece corresponding to the wedge block, and the inner side surface of the wedge block is in sliding fit with the conical surface;

the guide rod drives the driving piece to move downwards to push out the wedge block so as to tension the air duct, and the guide rod moves upwards to drive the driving piece to move upwards so that the wedge block moves inwards to reset and move to loosen the air duct.

9. The air duct forming line according to claim 1, wherein the flanging station comprises a first flanging station, a second flanging station and a third flanging station, the transfer device comprises a track arranged along the station arrangement direction and five manipulators capable of moving along the track, the track is provided with a track rack, the five manipulators comprise a first manipulator, a second manipulator, a third manipulator, a fourth manipulator and a fifth manipulator which are sequentially arranged, each manipulator comprises a sliding seat, a support, a sliding motor and a lifting driving device, the sliding seat of each manipulator is slidably arranged on the track, the sliding motor is arranged on the sliding seat, the output end of the sliding motor is meshed with the track rack, the support is arranged on the lower side of the sliding seat and is driven by the lifting driving device to move up and down, the first manipulator further comprises a first clamp arranged on the support, and the second manipulator further comprises a second clamp arranged on the support, the third manipulator further comprises a third clamp arranged on the support of the third manipulator, the fourth manipulator further comprises a fourth clamp arranged on the support of the fourth manipulator, and the fifth manipulator further comprises a fifth clamp arranged on the support of the fifth manipulator.