Hydraulic shallow drawing forming device and forming process for producing air guide ring

Abstract

The present invention is applicable to the technical field of air guide ring stretching and forming, and provides a hydraulic shallow stretching and forming device for air guide ring production and a forming process thereof, including a pre-bending unit and a dragging unit; the pre-bending unit includes an annular slide rail, an electric annular plate, a vertical block, an arc plate, a connecting strip, a bending roller, and a micro cylinder; the dragging unit includes a vertical plate, a telescopic cylinder, a telescopic plate, an arc strip, an electric slider, an extension plate, a dragging cylinder, a dragging plate, and a clamping part; the micro cylinder pushes the corresponding arc plate to rotate slowly, so that the arc plate and the connecting strip gradually approach the side wall of the annular plate to be deformed, so that the bending roller will squeeze the side wall of the annular plate to be deformed as the arc plate rotates, so that the side wall of the annular plate to be deformed appears a fixed point pre-fold, and this cycle is repeated; thereby improving the production quality of the air guide ring.

Description

Technical Field

[0001] The invention relates to the technical field of air guide ring stretching and forming, and more specifically, to a hydraulic shallow stretching and forming device and a forming process thereof for producing air guide rings. Background Art

[0002] An air guide ring is a device installed on the fan impeller, which is mainly used to change the direction and velocity distribution of the airflow to improve the performance of the fan, and is also used to reduce noise. In the air conditioner outdoor unit, the structure of the air guide ring has a significant impact on the air volume and noise.

[0003] At present, the process flow of air guide rings includes three steps: design, manufacturing and installation. When manufacturing air guide rings, the cut annular sheet needs to be clamped on the stamping platform first to ensure that the material is flat and wrinkle-free. Then the stamping machine is started to punch and stretch the inner ring of the sheet into the desired shape through the cooperation of the stamping head and the lower die. During this process, the stamping head will rotate while contacting the inner ring side wall of the extruded sheet, causing the inner ring side wall to gradually sink inward to ensure the forming of the air guide ring.

[0004] However, the punch head in the prior art is usually designed to be conical, which will cause the tip of the punch head to contact the surface of the side wall of the plate to be bent first when the plate is rotated and extruded, so that the initial contact point becomes a scratch due to the rotation, which causes the side wall of the plate to be bent to bend at the scratch during the downward extrusion of the punch head, and then cause the outer wall of the cylindrical end of the punch head to squeeze the scratch on the side wall of the plate to be bent, so that the scratch on the plate overlaps with the side wall of the plate between the lower die, so that the thickness at the overlapping part is uneven with the thickness at other positions, resulting in the risk of deformation, thereby reducing the production quality of the air guide ring.

[0005] At the same time, in the process of the side wall of the plate to be bent inwardly, since the inner ring of the plate to be bent is not subjected to any tensioning treatment, the side wall of the plate to be bent will be rotated and squeezed by the punch head, causing the side wall of the plate to be bent to shake due to rotation, resulting in wavy wrinkles on the side wall, causing the side wall of the plate to be bent to deform in layers, which is not conducive to the production quality and production efficiency of the air guide ring. For this reason, a hydraulic shallow drawing forming device for the production of air guide rings and a forming process thereof are proposed to improve the existing problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a hydraulic shallow drawing forming device and a forming process for producing an air guide ring.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a hydraulic shallow drawing forming device for producing air guide rings, comprising a forming unit, a pre-bending unit and a dragging unit; wherein the forming unit comprises a bearing frame, bearing columns evenly arranged around the top of the bearing frame, a top plate arranged in the middle of the bearing columns, a lifting cylinder evenly arranged around the top of the top plate, a connecting block arranged at the telescopic end of the lifting cylinder, a lifting plate arranged in the middle of the connecting block, a driving cylinder arranged in the middle of the top of the top plate, a driving plate arranged at the telescopic end of the driving cylinder, a rotating motor arranged at the bottom of the driving plate, a rotating plate arranged at the output end of the rotating motor, a slide rail arranged at the bottom of the rotating plate, an electric skateboard symmetrically sliding on the slide rail, a support rod arranged on the side of the electric skateboard away from the slide rail, and a support rod rotatably connected to the end of the support rod away from the electric skateboard. A forming mold; a pre-bending unit, which is arranged on the lifting plate, and includes an annular slide rail, an electric ring plate that slides evenly on the annular slide rail, a vertical block symmetrically arranged on the top of the electric ring plate, an arc plate rotatably connected to the side wall of the vertical block, a connecting strip arranged between the arc plates, a bending roller that slides on one side of the connecting strip, and a micro cylinder arranged at one end of the arc plate away from the connecting strip; a dragging unit, which is arranged between the forming molds, and includes a vertical plate, a telescopic cylinder arranged in the vertical plate, a telescopic plate arranged at the telescopic end of the telescopic cylinder, an arc bar evenly arranged at the bottom of the telescopic plate, an electric slider that slides in the arc bar, an extension plate arranged on one side of the electric slider, a dragging cylinder arranged at the bottom of the extension plate, a dragging plate arranged at the telescopic end of the dragging cylinder, and a clamping member arranged at one end of the dragging plate away from the dragging cylinder.

[0008] The present invention is further configured as follows: a bearing hole is provided on the top of the bearing frame, a bearing ring is provided above the bearing hole, the end of the bearing column away from the bearing frame can be connected to the bottom of the top plate, the end of the connecting block away from the lifting cylinder can be connected to the top of the lifting plate, the side walls around the lifting plate can be sleeved on the corresponding bearing columns, a lifting hole is also provided in the middle of the top end of the lifting plate, and the forming molds are located within the diameter range of the lifting hole.

[0009] The present invention is further configured as follows: a positioning unit is also provided in the carrier frame, and the positioning unit includes a lifting cylinder, a lifting plate provided at the telescopic end of the lifting cylinder, a lifting disk provided at the top of the lifting plate, a fixed support plate provided at the top of the lifting disk, positioning strips uniformly provided in the circumferential direction of the fixed support plate, a gear provided at one end of the fixed support plate, and a positioning motor provided at the end of the fixed support plate away from the gear; a placement plate is also provided in the carrier frame, and the telescopic end of the lifting cylinder passes through the bottom of the placement plate and is connected to the lifting plate. The lifting plate is U-shaped, the positioning motor is located inside the lifting plate, the output end of the positioning motor passes through the bottom of the lifting disk and the fixed support plate, and is connected to the gear; the fixed support plate is snowflake-shaped, and fixed grooves are evenly opened in the circumferential direction of the top of the fixed support plate, the positioning bar is T-shaped, and one end of the positioning bar in the vertical direction can slide in the fixed groove, a positioning pin is provided on the top of one end of the positioning bar close to the fixed groove, and sliding grooves are evenly opened on the top of the gear, and the sliding grooves are distributed in an arc shape, and the positioning pin can slide in the corresponding sliding grooves.

[0010] The present invention is further configured as follows: the annular slide rail is aligned with the lifting hole, an arc groove is provided on the side wall of the arc plate away from the vertical block, an electric arc block slides in the arc groove, and both ends of the bending roller can be rotatably connected to the side walls of the corresponding electric arc block.

[0011] The present invention is further configured as follows: the vertical plate is U-shaped, the top of the vertical plate is connected to the bottom of the rotating plate, an arc-shaped through groove is opened on the side wall of the arc-shaped strip, the electric slider can slide in the arc-shaped through groove, the extension plate is inverted U-shaped, the telescopic end of the dragging cylinder passes through one of the vertical side walls of the extension plate and is connected to the dragging plate, the dragging plate is U-shaped, and the other vertical side wall of the extension plate is located inside the dragging plate.

[0012] The present invention is further configured as follows: the clamping member includes a first short rod, a second short rod rotatably connected to one end of the first short rod, a first long rod rotatably connected to one end of the second short rod away from the first short rod, a second long rod rotatably connected to one end of the first short rod away from the second short rod, a third short rod rotatably connected to one end of the second long rod away from the first short rod, a fourth short rod rotatably connected to one end of the first long rod away from the second short rod, a rotating box arranged between the third short rod and the fourth short rod, and a gear ring symmetrically rotatably connected to the rotating box; a connecting portion of the first short rod and the second short rod The first and second long rods are rotatably connected to the side wall of the extension plate in another vertical direction, the first long rod and the second long rod are distributed in multiple groups, the first long rod is rotatably connected to the middle of the side wall of the second long rod, the connection between the first long rod and the second long rod can be rotatably connected to the end of the dragging plate away from the dragging cylinder, the end of the third short rod away from the second long rod can be connected to the corresponding gear ring, the end of the fourth short rod away from the first long rod can be connected to another corresponding gear ring, the gear rings are meshed for transmission, the outer wall of one of the gear rings is provided with a movable clamp, and the side wall of the rotating box is provided with a fixed clamp.

[0013] The present invention is further configured as follows: a pressure unit is also arranged in the carrier frame, and the pressure unit includes a fixed seat, a fixed ring arranged at one end of the fixed seat, a fixed cylinder evenly arranged on the fixed ring, a rotating cylinder sleeved on the fixed cylinder, a changing piece arranged between the rotating cylinders, a secondary gear arranged at one end of one of the rotating cylinders, a main gear meshing with the secondary gear for transmission, and a pressure motor arranged at one end of the main gear.

[0014] The present invention is further configured as follows: the side wall of the fixing seat can be connected to the inner top of the bearing frame, the fixing ring can be aligned with the bearing hole, and the outer wall of the pressing motor away from the main gear can be connected to one side of the fixing seat.

[0015] The present invention is further configured as follows: the changing member includes a pressure bar, and a changing bar symmetrically connected to both ends of the pressure bar; the changing bar is L-shaped, wherein one end of the changing bar away from the pressure bar can be rotatably connected to the outer wall of the corresponding rotating cylinder, and the other end of the changing bar away from the pressure bar can be rotatably connected to the outer wall of the other corresponding rotating cylinder.

[0016] The hydraulic shallow drawing forming process for producing the air guide ring uses the hydraulic shallow drawing forming device for producing the air guide ring as described above, and comprises the following steps:

[0017] S1. When producing the air guide ring, the cut annular plate needs to be placed on the carrier first, and then the lifting cylinder is started, and the lifting plate is pushed toward the annular plate along the distribution direction of the bearing column through the connecting block, and the annular plate is pressed so that the annular plate is located between the lifting plate and the carrier;

[0018] S2, the driving cylinder is started, and the two forming dies are driven to descend and approach the annular plate through the driving plate. During this process, the rotating motor is started, and the two forming dies are driven to start rotating through the rotating plate. At the same time, the electric slide is started, and the corresponding support rods and the forming dies are driven to move on the slide rail, approach each other, and reach a suitable position, so as to facilitate the subsequent stretching and forming of the to-be-deformed area of ​​the annular plate;

[0019] S3. When the tip of the forming mold rotates and contacts the side wall of the annular plate to be deformed, on the one hand, the electric ring plates are all started, driving the corresponding arc plate and the bending roller to slide along the track of the annular slide rail. At this time, the sliding speed of the electric ring plate is greater than the rotation speed of the forming mold; on the other hand, the micro cylinder is started to push the corresponding arc plate to rotate slowly, so that the arc plate and the connecting strip gradually approach the side wall of the annular plate to be deformed. In this process, since the arc plate is an arc, the bending roller will squeeze the side wall of the annular plate to be deformed as the arc plate rotates, so that the side wall of the annular plate to be deformed has a fixed point pre-crease, and this cycle is repeated;

[0020] S4. During the working process of S3, the telescopic cylinder is started to push the telescopic plate down to a height aligned with the tip of the forming mold, and then the dragging cylinder is started to push the dragging plate, and the dragging plate pushes the clamping member to clamp the side wall of the annular plate to be deformed, and tighten the side wall of the annular plate to be deformed; as the side wall of the annular plate to be deformed gradually sinks inward, the electric slider is started to slide along the opening direction of the arc strip with the clamping member, so that when the side wall of the annular plate to be deformed sinks inward, the side wall of the annular plate to be deformed can also be clamped and tightened.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] (1) The corresponding arc plate is pushed to rotate slowly by a micro cylinder, so that the arc plate and the connecting strip gradually approach the side wall of the annular plate to be deformed. Therefore, the bending roller will squeeze the side wall of the annular plate to be deformed as the arc plate rotates, so that the side wall of the annular plate to be deformed appears a fixed pre-crease, and this cycle is repeated; thereby improving the production quality of the air guide ring.

[0023] (2) The dragging cylinder pushes the dragging plate and the clamping member to clamp the side wall of the annular plate to be deformed, and the side wall of the annular plate to be deformed is tightened; the flatness of the air guide ring is ensured, thereby improving the production quality of the air guide ring.

[0024] (3) The electric slider drives the clamping member to slide along the opening direction of the arc strip, so that when the side wall of the annular plate to be deformed is concave inward, the side wall of the annular plate to be deformed can also be clamped and tightened, thereby ensuring the flatness of the side wall of the annular plate to be deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the hydraulic shallow drawing forming device for producing the air guide ring of the present invention.

[0026] Figure 2 It is a schematic diagram of the overall structure of the bearing hole, the bearing ring and the placement plate in the present invention.

[0027] Figure 3 It is an exploded view of the molding unit in the present invention.

[0028] Figure 4 It is a schematic diagram of the overall structure of the lifting cylinder and the connecting block in the present invention.

[0029] Figure 5 It is a schematic diagram of the overall structure of the pre-bending unit in the present invention.

[0030] Figure 6 It is a partial structural schematic diagram of the pre-bending unit in the present invention.

[0031] Figure 7 It is a schematic diagram of another part of the structure of the pre-bending unit in the present invention.

[0032] Figure 8 It is a schematic diagram of the overall structure of the arc plate and the connecting strip in the present invention.

[0033] Fig. 9 It is a schematic diagram of the overall structure of the dragging unit in the present invention.

[0034] Fig.10 It is a partial structural schematic diagram of the dragging unit in the present invention.

[0035] Fig.11 It is a schematic diagram of another part of the structure of the dragging unit in the present invention.

[0036] Fig.12 for Fig.11 Enlarged view of point A in the middle.

[0037] Fig.13 It is an exploded view of the positioning unit in the present invention.

[0038] Fig.14 It is a schematic diagram of the overall structure of the pressing unit in the present invention.

[0039] Fig.15It is an exploded view of the pressing unit in the present invention.

[0040] Description of reference numerals: 1, molding unit; 11, carrier; 111, bearing hole; 112, bearing ring; 113, placement plate; 12, bearing column; 13, top plate; 14, lifting cylinder; 141, connecting block; 15, lifting plate; 151, lifting hole; 16, driving cylinder; 161, driving plate; 17, rotating motor; 171, rotating plate; 172, slide rail; 173, electric slide plate; 18, support rod; 19, molding mold;

[0041] 2. Pre-bending unit; 21. Annular slide rail; 22. Electric ring plate; 23. Vertical block; 24. Arc plate; 241. Arc groove; 242. Electric arc block; 25. Connecting strip; 26. Bending roller; 27. Micro cylinder;

[0042] 3. Drag unit; 31. Vertical plate; 32. Telescopic cylinder; 33. Telescopic plate; 34. Arc strip; 341. Arc slot; 35. Electric slider; 36. Extension plate; 37. Drag cylinder; 38. Drag plate; 39. Clamp; 391. First short rod; 392. Second short rod; 393. First long rod; 394. Second long rod; 395. Third short rod; 396. Fourth short rod; 397. Rotating box; 3971. Fixed clamp; 398. Gear ring; 399. Movable clamp;

[0043] 4. Positioning unit; 41. Lifting cylinder; 42. Lifting plate; 43. Lifting plate; 44. Fixed support plate; 441. Fixed groove; 45. Positioning strip; 451. Positioning pin; 46. Gear; 461. Slideway; 47. Positioning motor;

[0044] 5. Pressing unit; 51. Fixed seat; 52. Fixed ring; 53. Fixed cylinder; 54. Rotating cylinder; 55. Changing piece; 551. Pressing bar; 552. Changing bar; 56. Secondary gear; 57. Main gear; 58. Pressing motor. DETAILED DESCRIPTION

[0045] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0046] See also Figure 1-Figure 15 , the present invention provides the following technical solutions:

[0047] Example 1, see Figure 1-Figure 15 A hydraulic shallow drawing forming device for producing an air guide ring includes a forming unit 1, a pre-bending unit 2 and a dragging unit 3; wherein the forming unit 1 is configured to rotate and extrude the side wall of the plate to be bent, so that the side wall of the plate to be bent gradually sinks inward to ensure the forming of the air guide ring.

[0048] The function of the pre-bending unit 2 is to bend the side wall of the plate to be bent in advance, so that the bending point is located at the contact point between the plate and the inner wall of the supporting ring 112, thereby avoiding the tip of the punch head contacting the surface of the side wall of the plate to be bent first, so that the initial contact point becomes a scratch due to rotation, which causes the side wall of the plate to be bent to bend at the scratch during the downward extrusion of the punch head, and then causes the outer wall of the cylindrical end of the punch head to squeeze the scratch of the side wall of the plate to be bent, so that the scratch of the plate overlaps with the side wall of the plate between the lower die, so that the thickness of the overlapping part is uneven with the thickness of other positions, resulting in the risk of deformation, thereby improving the production quality of the air guide ring.

[0049] The function of the dragging unit 3 is to tighten the inner wall of the side wall to be bent of the plate during the process of inward bending and deformation, thereby avoiding the situation where the inner circle of the plate to be bent is not tightened, which will cause the side wall to be bent of the plate to shake due to rotation and extrusion by the punch head, resulting in wavy wrinkles on the side wall to be bent, thereby ensuring the flatness of the air guide ring and improving the production quality of the air guide ring.

[0050] See also Figure 1-Figure 4 Specifically, the molding unit 1 includes a carrier frame 11, carrier columns 12 uniformly arranged around the top of the carrier frame 11, a top plate 13 arranged in the middle of the carrier columns 12, a lifting cylinder 14 uniformly arranged around the top of the top plate 13, a connecting block 141 arranged at the telescopic end of the lifting cylinder 14, a lifting plate 15 arranged in the middle of the connecting block 141, a driving cylinder 16 arranged in the middle of the top of the top plate 13, a driving plate 161 arranged at the telescopic end of the driving cylinder 16, a rotating motor 17 arranged at the bottom of the driving plate 161, a rotating plate 171 arranged at the output end of the rotating motor 17, a slide rail 172 arranged at the bottom of the rotating plate 171, an electric skateboard 173 symmetrically sliding on the slide rail 172, a support rod 18 arranged on the side of the electric skateboard 173 away from the slide rail 172, and a molding mold 19 rotatably connected to the end of the support rod 18 away from the electric skateboard 173.

[0051] Among them, when producing the air guide ring, first, the cut annular plate needs to be placed on the supporting frame 11, and then the lifting cylinder 14 is started, and the lifting plate 15 is pushed to move toward the annular plate along the distribution direction of the supporting column 12 through the connecting block 141, and the annular plate is pressed so that the annular plate is located between the lifting plate 15 and the supporting frame 11; then the driving cylinder 16 is started, and the two forming molds 19 are driven to descend and approach the annular plate through the driving plate 161. During this process, the rotating motor 17 is started, and the two forming molds 19 are driven to start rotating through the rotating plate 171. At the same time, the electric slide 173 is started, driving the corresponding support rod 18 and the forming mold 19 to move on the slide rail 172, approach each other, and reach a suitable position, so as to facilitate the subsequent stretching and forming of the deformation area of ​​the annular plate.

[0052] See also Figure 5-Figure 8 Specifically, the pre-bending unit 2 is arranged on the lifting plate 15, and includes an annular slide rail 21, an electric ring plate 22 that slides evenly on the annular slide rail 21, a vertical block 23 symmetrically arranged on the top of the electric ring plate 22, an arc plate 24 rotatably connected to the side wall of the vertical block 23, a connecting bar 25 arranged between the arc plates 24, a bending roller 26 sliding on one side of the connecting bar 25, and a micro cylinder 27 arranged at one end of the arc plate 24 away from the connecting bar 25.

[0053] Among them, when the tip of the forming mold 19 rotates and contacts the side wall of the annular plate to be deformed, on the one hand, the electric ring plate 22 is started, driving the corresponding arc plate 24 and the bending roller 26 to slide along the track of the annular slide rail 21. At this time, the sliding speed of the electric ring plate 22 is greater than the rotation speed of the forming mold 19, so the arc plate 24 and the forming mold 19 will not interfere with each other; on the other hand, the micro cylinder 27 is started to push the corresponding arc plate 24 to rotate slowly, so that the arc plate 24 and the connecting strip 25 gradually approach the side wall of the annular plate to be deformed. In this process, since the arc plate 24 is arc-shaped, the bending roller 26 will rotate with the arc plate 24, and The side wall of the annular plate to be deformed is extruded so that a fixed pre-crease appears on the side wall of the annular plate to be deformed, and this cycle is repeated; thereby avoiding the tip of the punch head contacting the surface of the side wall of the plate to be bent first, so that the initial contact point becomes a scratch due to rotation, resulting in the side wall of the plate to be bent being bent at the scratch during the downward extrusion of the punch head, and then causing the outer wall of the cylindrical end of the punch head to squeeze the scratch on the side wall of the plate to be bent, so that the scratch on the plate overlaps with the side wall of the plate between the lower die, so that the thickness at the overlapping part is uneven with the thickness at other positions, resulting in the risk of deformation, thereby improving the production quality of the air guide ring.

[0054] See also Figure 9-12Specifically, the dragging unit 3 is arranged between the molding dies 19, and includes a vertical plate 31, a telescopic cylinder 32 arranged in the vertical plate 31, a telescopic plate 33 arranged at the telescopic end of the telescopic cylinder 32, an arc-shaped bar 34 evenly arranged at the bottom of the telescopic plate 33, an electric slider 35 sliding in the arc-shaped bar 34, an extension plate 36 arranged at one side of the electric slider 35, a dragging cylinder 37 arranged at the bottom of the extension plate 36, a dragging plate 38 arranged at the telescopic end of the dragging cylinder 37, and a clamping member 39 arranged at the end of the dragging plate 38 away from the dragging cylinder 37.

[0055] Among them, while the pre-bending unit 2 is working, the telescopic cylinder 32 is started to push the telescopic plate 33 down to a height aligned with the tip of the forming mold 19, and then the dragging cylinder 37 is started to push the dragging plate 38, and the dragging plate 38 pushes the clamping member 39 to clamp the side wall of the annular plate to be deformed, and the side wall of the annular plate to be deformed is tightened; thereby avoiding the inner circle of the plate to be bent without any tightening treatment, which will cause the side wall of the plate to be bent to appear wavy and wrinkled due to the rotation and shaking of the punch head during the process of rotating and extruding the side wall of the plate to be bent, thereby ensuring the flatness of the air guide ring and improving the production quality of the air guide ring.

[0056] As the side wall of the annular plate to be deformed gradually sinks inward, the electric slider 35 starts, and slides along the opening direction of the arc strip 34 with the clamping member 39, so that when the side wall of the annular plate to be deformed sinks inward, the side wall of the annular plate to be deformed can also be clamped and tightened, thereby ensuring the flatness of the side wall of the annular plate to be deformed.

[0057] See also Figure 1-Figure 4 Furthermore, a bearing hole 111 is provided at the top of the bearing frame 11, and a bearing ring 112 is provided above the bearing hole 111. The end of the bearing column 12 away from the bearing frame 11 can be connected to the bottom of the top plate 13, and the end of the connecting block 141 away from the lifting cylinder 14 can be connected to the top of the lifting plate 15. The side walls of the lifting plate 15 can be sleeved on the corresponding bearing columns 12. A lifting hole 151 is also provided in the middle of the top of the lifting plate 15, and the molding molds 19 are located within the diameter range of the lifting hole 151.

[0058] Among them, the centers of the bearing hole 111, the bearing ring 112 and the lifting hole 151 are all aligned and distributed; when producing the air guide ring, it is first necessary to place the cut annular plate on the bearing ring 112 of the bearing frame 11 so that the center of the annular plate is aligned with the center of the bearing ring 112.

[0059] See also Figure 1-Figure 4 and Fig.13Furthermore, a positioning unit 4 is also provided in the carrier 11, and the positioning unit 4 includes a lifting cylinder 41, a lifting plate 42 provided at the telescopic end of the lifting cylinder 41, a lifting disk 43 provided at the top of the lifting plate 42, a fixed support plate 44 provided at the top of the lifting disk 43, positioning strips 45 uniformly provided in the circumferential direction of the fixed support plate 44, a gear 46 provided at one end of the fixed support plate 44, and a positioning motor 47 provided at the end of the fixed support plate 44 away from the gear 46; a placement plate 113 is also provided in the carrier 11, and the telescopic end of the lifting cylinder 41 passes through the bottom of the placement plate 113 and is connected to the lifting plate 42, and the lifting plate 4 2 is U-shaped, the positioning motor 47 is located in the lifting plate 42, the output end of the positioning motor 47 passes through the lifting plate 43 and the bottom of the fixed support plate 44, and is connected to the gear 46; the fixed support plate 44 is snowflake-shaped, and the top of the fixed support plate 44 is evenly provided with fixed grooves 441 in the circumferential direction, the positioning bar 45 is T-shaped, and one end of the positioning bar 45 in the vertical direction can slide in the fixed groove 441, and a positioning pin 451 is provided on the top of one end of the positioning bar 45 close to the fixed groove 441, and the top of the gear 46 is evenly provided with slide grooves 461, which are distributed in an arc shape, and the positioning pin 451 can slide in the corresponding slide groove 461.

[0060] Among them, when the annular plate is placed on the supporting ring 112, the positioning motor 47 is started, driving the gear 46 to rotate, so that the positioning pin 451 slides in the corresponding slide groove 461, and then drives the positioning bar 45 to slide in the corresponding fixed groove 441, so that several positioning bars 45 are unfolded, and the center of the annular plate is positioned, so that the center of the annular plate is aligned with the center of the supporting ring 112.

[0061] Subsequently, the lifting cylinder 41 is started, and the positioning bar 45 is driven to descend through the lifting plate 42 and the lifting disk 43, away from the plate, so as to facilitate the subsequent rotational extrusion molding.

[0062] See also Figure 5-Figure 8 Furthermore, the annular slide rail 21 is aligned with the lifting hole 151, and an arc groove 241 is opened on the side wall of the arc plate 24 away from the vertical block 23. An electric arc block 242 slides in the arc groove 241, and both ends of the bending roller 26 can be rotatably connected to the corresponding side walls of the electric arc block 242.

[0063] Among them, the micro cylinder 27 is started to push the corresponding arc plate 24 to rotate slowly, so that the arc plate 24 and the connecting strip 25 gradually approach the side wall of the annular plate to be deformed. In this process, since the side wall of the arc plate 24 away from the vertical block 23 is provided with an arc groove 241, and an electric arc block 242 slides in the arc groove 241, the electric arc block 242 is started to drive the bending roller 26 to slide along the opening direction of the arc groove 241, and squeeze the side wall of the annular plate to be deformed, so that the side wall of the annular plate to be deformed has a fixed point pre-crease. , and the cycle is repeated; thereby preventing the tip of the punch head from contacting the surface of the side wall of the sheet to be bent first, causing the initial contact point to become a scratch due to rotation, resulting in the side wall of the sheet to be bent being bent at the scratch during the downward extrusion of the punch head, and then causing the outer wall of the cylindrical end of the punch head to squeeze the scratch on the side wall of the sheet to be bent, causing the scratch on the sheet to overlap with the side wall of the sheet between the lower die, resulting in uneven thickness at the overlapping portion and thickness at other positions, resulting in deformation risk, thereby improving the production quality of the air guide ring.

[0064] Example 2, see Figure 9-12 Furthermore, the vertical plate 31 is U-shaped, the top of the vertical plate 31 is connected to the bottom of the rotating plate 171, an arc-shaped through groove 341 is opened on the side wall of the arc-shaped bar 34, the electric slider 35 can slide in the arc-shaped through groove 341, the extension plate 36 is inverted U-shaped, the telescopic end of the dragging cylinder 37 passes through one of the vertical side walls of the extension plate 36 and is connected to the dragging plate 38, the dragging plate 38 is U-shaped, and the other vertical side wall of the extension plate 36 is located in the dragging plate 38.

[0065] Among them, as the side wall of the annular plate to be deformed gradually sinks inward, the electric slider 35 starts, and slides along the opening direction of the arc-shaped through groove 341 with the clamping member 39, so that when the side wall of the annular plate to be deformed sinks inward, the side wall of the annular plate to be deformed can also be clamped and tightened, thereby ensuring the flatness of the side wall of the annular plate to be deformed.

[0066] See also Figure 9-12Furthermore, the clamping member 39 includes a first short rod 391, a second short rod 392 rotatably connected to one end of the first short rod 391, a first long rod 393 rotatably connected to one end of the second short rod 392 away from the first short rod 391, a second long rod 394 rotatably connected to one end of the first short rod 391 away from the second short rod 392, a third short rod 395 rotatably connected to one end of the second long rod 394 away from the first short rod 391, a fourth short rod 396 rotatably connected to one end of the first long rod 393 away from the second short rod 392, a rotating box 397 disposed between the third short rod 395 and the fourth short rod 396, and a toothed ring 398 symmetrically rotatably connected to the rotating box 397; the first short rod 391 and the second short rod 392 The connection can be rotatably connected to the other vertical side wall of the extension plate 36, the first long rod 393 and the second long rod 394 are distributed in multiple groups, the first long rod 393 and the second long rod 394 are rotatably connected at the middle of the side wall, the connection between the first long rod 393 and the second long rod 394 can be rotatably connected to the end of the drag plate 38 away from the drag cylinder 37, the end of the third short rod 395 away from the second long rod 394 can be connected to the corresponding gear ring 398, the end of the fourth short rod 396 away from the first long rod 393 can be connected to another corresponding gear ring 398, the gear rings 398 are meshed for transmission, the outer wall of one of the gear rings 398 is provided with a movable clamp 399, and the side wall of the rotating box 397 is provided with a fixed clamp 3971.

[0067] Among them, the dragging cylinder 37 is started to push the dragging plate 38, so that the dragging plate 38 indirectly pushes the rotating connection between the first long rod 393 and the second long rod 394, so that the first long rod 393 and the second long rod 394 are deformed and expanded. In this process, the first short rod 391 and the second short rod 392, the third short rod 395 and the fourth short rod 396 will also be deformed and expanded, so that the two toothed rings 398 are engaged and rotated, so that the movable clamp 399 on one of the toothed rings 398 is close to the fixed clamp 3971, and the side wall of the plate to be deformed is clamped, and the side wall of the annular plate to be deformed is tightened; thereby avoiding the inner ring of the plate to be bent without any tightening treatment, which will cause the side wall of the plate to be bent to appear wavy and wrinkled due to the rotational shaking of the punch head during the rotational extrusion of the side wall of the plate to be bent, thereby ensuring the flatness of the air guide ring and improving the production quality of the air guide ring.

[0068] Embodiment 3, through the technical solutions of embodiment 1 and embodiment 2, although the problem that the tip of the punch head first contacts the surface of the side wall of the plate to be bent in the prior art is solved, so that the initial contact point becomes a scratch due to rotation, which causes the side wall of the plate to be bent to bend at the scratch during the downward extrusion of the punch head, and then causes the outer wall of the cylindrical end of the punch head to squeeze the scratch of the side wall of the plate to be bent, so that the scratch of the plate overlaps with the side wall of the plate between the lower die, so that the thickness of the overlapping part is uneven with the thickness of other positions, resulting in deformation. In the prior art, the inner ring of the plate to be bent is not tensioned, which causes the side wall of the plate to be bent to shake due to rotation and wrinkles during the rotation and extrusion of the punch head on the side wall of the plate to be bent. However, the problem that the outer wall of the forming mold 19 will continue to rotate and extrude the inwardly concave side wall of the plate and damage the formed side wall of the plate is still not solved during the upward displacement of the two forming molds 19 in the prior art, because the forming mold 19 cannot stop rotating. Therefore, the following solution is proposed:

[0069] See also Figure 14-15 Furthermore, a pressing unit 5 is also provided in the carrier frame 11, and the pressing unit 5 includes a fixed seat 51, a fixed ring 52 arranged at one end of the fixed seat 51, a fixed cylinder 53 evenly arranged on the fixed ring 52, a rotating cylinder 54 sleeved on the fixed cylinder 53, a changing member 55 arranged between the rotating cylinders 54, a secondary gear 56 arranged at one end of one of the rotating cylinders 54, a main gear 57 meshing with the secondary gear 56 for transmission, and a pressing motor 58 arranged at one end of the main gear 57.

[0070] See also Figure 14-15 Furthermore, the side wall of the fixing seat 51 can be connected to the inner top of the supporting frame 11, the fixing ring 52 can be aligned with the supporting hole 111, and the outer wall of the pressing motor 58 away from the main gear 57 can be connected to one side of the fixing seat 51.

[0071] See also Figure 14-15 Furthermore, the changing member 55 includes a pressure bar 551 and a changing bar 552 symmetrically connected to both ends of the pressure bar 551; the changing bar 552 is L-shaped, and one end of one changing bar 552 away from the pressure bar 551 can be rotatably connected to the outer wall of the corresponding rotating cylinder 54, and the other end of the changing bar 552 away from the pressure bar 551 can be rotatably connected to the outer wall of the other corresponding rotating cylinder 54.

[0072] In the process of the two forming dies 19 moving upward, since the forming dies 19 cannot stop rotating, the outer wall of the forming dies 19 will continue to rotate and squeeze the side wall of the plate that has been concave inward, damaging the side wall of the formed plate. Therefore, the pressing motor 58 is started, driving the main gear 57 to rotate, so that the secondary gear 56 rotates synchronously, and drives the corresponding rotating cylinder 54 to rotate around the outer wall of the corresponding fixed cylinder 53. Since one end of one of the changing bars 552 away from the pressing bar 551 can be rotatably connected to the outer wall of the corresponding rotating cylinder 54, the other end of the changing bar 552 away from the pressing bar 551 can be rotatably connected It is connected to the outer wall of the other corresponding rotating cylinder 54. Therefore, when one of the rotating cylinders 54 rotates, all the rotating cylinders 54 can be driven to rotate synchronously through the changing strips 552 and the pressing strips 551, so that all the pressing strips 551 can make a circular motion around the fixed ring 52, and the side wall of the plate that has been concave inward is pressed downward again to be combed, so that the side wall of the plate that has been concave inward is tightly fitted with the inner wall of the supporting ring 112, thereby avoiding the problem that the outer wall of the forming mold 19 will continue to rotate and squeeze the side wall of the plate that has been concave inward, damaging the side wall of the formed plate, ensuring the flatness of the air guide ring and improving the production efficiency of the air guide ring.

[0073] Embodiment 4, a hydraulic shallow drawing forming process for producing an air guide ring, using the hydraulic shallow drawing forming device for producing an air guide ring as described above, comprises the following steps:

[0074] S1. When producing air guide rings, the cut annular plate needs to be placed on the supporting frame 11 first, and then the lifting cylinder 14 is started, and the lifting plate 15 is pushed toward the annular plate along the distribution direction of the supporting column 12 through the connecting block 141, and the annular plate is pressed so that the annular plate is located between the lifting plate 15 and the supporting frame 11.

[0075] S2, the driving cylinder 16 is started, and the two forming dies 19 are driven to descend and approach the annular plate through the driving plate 161. During this process, the rotating motor 17 is started, and the two forming dies 19 are driven to start rotating through the rotating plate 171. At the same time, the electric slide 173 is started, and the corresponding support rods 18 and the forming dies 19 are driven to move on the slide rail 172, approach each other, and reach a suitable position, so as to facilitate the subsequent stretching and forming of the deformation area of ​​the annular plate.

[0076] S3. When the tip of the forming mold 19 rotates and contacts the side wall of the annular plate to be deformed, on the one hand, the electric ring plate 22 is started, driving the corresponding arc plate 24 and the bending roller 26 to slide along the track of the annular slide rail 21. At this time, the sliding speed of the electric ring plate 22 is greater than the rotation speed of the forming mold 19; on the other hand, the micro cylinder 27 is started, pushing the corresponding arc plate 24 to rotate slowly, so that the arc plate 24 and the connecting strip 25 gradually approach the side wall of the annular plate to be deformed. In this process, since the arc plate 24 is arc-shaped, the bending roller 26 will squeeze the side wall of the annular plate to be deformed as the arc plate 24 rotates, so that the side wall of the annular plate to be deformed has a fixed point pre-crease, and this cycle is repeated.

[0077] S4. During the working process of S3, the telescopic cylinder 32 is started to push the telescopic plate 33 down to a height aligned with the tip of the forming mold 19, and then the dragging cylinder 37 is started to push the dragging plate 38, and the dragging plate 38 pushes the clamping member 39 to clamp the side wall of the annular plate to be deformed, and tighten the side wall of the annular plate to be deformed; as the side wall of the annular plate to be deformed gradually sinks inward, the electric slider 35 is started, and the clamping member 39 slides along the opening direction of the arc strip 34, so that when the side wall of the annular plate to be deformed sinks inward, the side wall of the annular plate to be deformed can also be clamped and tightened.

[0078] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. Hydraulic shallow drawing forming device for air guide ring production, characterized by: include, A molding unit (1) comprises a carrier frame (11), carrier columns (12) evenly arranged around the top of the carrier frame (11), a top plate (13) arranged in the middle of the carrier columns (12), a lifting cylinder (14) evenly arranged around the top of the top plate (13), a connecting block (141) arranged at the telescopic end of the lifting cylinder (14), a lifting plate (15) arranged in the middle of the connecting block (141), a driving cylinder (16) arranged in the middle of the top of the top plate (13), and a telescopic cylinder (15) arranged at the driving cylinder (16). A driving plate (161) at an end thereof, a rotating motor (17) disposed at the bottom of the driving plate (161), a rotating plate (171) disposed at an output end of the rotating motor (17), a slide rail (172) disposed at the bottom of the rotating plate (171), an electric slide plate (173) symmetrically sliding on the slide rail (172), a support rod (18) disposed at a side of the electric slide plate (173 away from the slide rail (172), and a molding die (19) rotatably connected to an end of the support rod (18) away from the electric slide plate (173); A pre-bending unit (2) is arranged on the lifting plate (15), comprising an annular slide rail (21), an electric ring plate (22) uniformly sliding on the annular slide rail (21), a vertical block (23) symmetrically arranged on the top of the electric ring plate (22), an arc-shaped plate (24) rotatably connected to the side wall of the vertical block (23), a connecting strip (25) arranged between the arc-shaped plates (24), a bending roller (26) sliding on one side of the connecting strip (25), and a micro cylinder (27) arranged at the end of the arc-shaped plate (24) away from the connecting strip (25); and, The dragging unit (3) is arranged between the molding dies (19), and comprises a vertical plate (31), a telescopic cylinder (32) arranged in the vertical plate (31), a telescopic plate (33) arranged at the telescopic end of the telescopic cylinder (32), an arc-shaped bar (34) evenly arranged at the bottom of the telescopic plate (33), an electric slider (35) sliding in the arc-shaped bar (34), an extension plate (36) arranged at one side of the electric slider (35), a dragging cylinder (37) arranged at the bottom of the extension plate (36), a dragging plate (38) arranged at the telescopic end of the dragging cylinder (37), and a clamping member (39) arranged at the end of the dragging plate (38) away from the dragging cylinder (37).

2. The hydraulic shallow drawing forming device for producing air guide rings according to claim 1 is characterized in that: A bearing hole (111) is provided at the top of the bearing frame (11), a bearing ring (112) is provided above the bearing hole (111), one end of the bearing column (12) away from the bearing frame (11) can be connected to the bottom of the top plate (13), one end of the connecting block (141) away from the lifting cylinder (14) can be connected to the top of the lifting plate (15), the surrounding side walls of the lifting plate (15) can be sleeved on the corresponding bearing column (12), a lifting hole (151) is also provided in the middle of the top end of the lifting plate (15), and the molding mold (19) is located within the diameter range of the lifting hole (151).

3. The hydraulic shallow drawing forming device for producing air guide rings according to claim 1 is characterized in that: A positioning unit (4) is also provided in the carrier frame (11), and the positioning unit (4) comprises a lifting cylinder (41), a lifting plate (42) provided at the telescopic end of the lifting cylinder (41), a lifting disk (43) provided at the top of the lifting plate (42), a fixed support plate (44) provided at the top of the lifting disk (43), positioning strips (45) evenly provided in the circumferential direction of the fixed support plate (44), a gear (46) provided at one end of the fixed support plate (44), and a positioning motor (47) provided at the end of the fixed support plate (44) away from the gear (46); A placement plate (113) is also provided in the carrier frame (11), the telescopic end of the lifting cylinder (41) passes through the bottom of the placement plate (113) and is connected to the lifting plate (42), the lifting plate (42) is U-shaped, the positioning motor (47) is located in the lifting plate (42), the output end of the positioning motor (47) passes through the lifting plate (43) and the bottom of the fixed support plate (44), and is connected to the gear (46); the fixed support plate (44) is snowflake-shaped, and the fixed support plate (44) is Fixed grooves (441) are evenly arranged in the circumferential direction of the top, the positioning bar (45) is T-shaped, one end of the positioning bar (45) in the vertical direction can slide in the fixed groove (441), a positioning pin (451) is arranged on the top of one end of the positioning bar (45) close to the fixed groove (441), and sliding grooves (461) are evenly arranged on the top of the gear (46), the sliding grooves (461) are distributed in an arc shape, and the positioning pin (451) can slide in the corresponding sliding groove (461).

4. The hydraulic shallow drawing forming device for producing air guide rings according to claim 2 is characterized in that: The annular slide rail (21) is aligned with the lifting hole (151), and an arc groove (241) is provided on the side wall of the arc plate (24) away from the vertical block (23). An electric arc block (242) slides in the arc groove (241), and both ends of the bending roller (26) are rotatably connected to the side walls of the corresponding electric arc blocks (242).

5. The hydraulic shallow drawing forming device for producing air guide rings according to claim 1 is characterized in that: The vertical plate (31) is U-shaped, the top of the vertical plate (31) is connected to the bottom of the rotating plate (171), the side wall of the arc strip (34) is provided with an arc-shaped through groove (341), the electric slider (35) can slide in the arc-shaped through groove (341), the extension plate (36) is inverted U-shaped, the telescopic end of the dragging cylinder (37) passes through one of the vertical side walls of the extension plate (36) and is connected to the dragging plate (38), the dragging plate (38) is U-shaped, and the other vertical side wall of the extension plate (36) is located inside the dragging plate (38).

6. The hydraulic shallow drawing forming device for producing air guide rings according to claim 5, characterized in that: The clamping member (39) comprises a first short rod (391), a second short rod (392) rotatably connected to one end of the first short rod (391), a first long rod (393) rotatably connected to one end of the second short rod (392) away from the first short rod (391), a second long rod (394) rotatably connected to one end of the first short rod (391) away from the second short rod (392), a third short rod (395) rotatably connected to one end of the second long rod (394) away from the first short rod (391), a fourth short rod (396) rotatably connected to one end of the first long rod (393) away from the second short rod (392), a rotating box (397) arranged between the third short rod (395) and the fourth short rod (396), and a gear ring (398) symmetrically rotatably connected to the rotating box (397); The connection point between the first short rod (391) and the second short rod (392) can be rotatably connected to another vertical side wall of the extension plate (36); the first long rod (393) and the second long rod (394) are distributed in multiple groups; the first long rod (393) and the second long rod (394) are rotatably connected at the middle of the side wall; the connection point between the first long rod (393) and the second long rod (394) can be rotatably connected to an end of the drag plate (38) away from the drag cylinder (37); the end of the third short rod (395) away from the second long rod (394) can be connected to a corresponding toothed ring (398); the end of the fourth short rod (396) away from the first long rod (393) can be connected to another corresponding toothed ring (398); the toothed rings (398) are meshed with each other for transmission; a movable clamp (399) is provided on the outer wall of one of the toothed rings (398); and a fixed clamp (3971) is provided on the side wall of the rotating box (397).

7. The hydraulic shallow drawing forming device for producing air guide rings according to claim 2 is characterized in that: A pressing unit (5) is also arranged in the support frame (11), and the pressing unit (5) comprises a fixed seat (51), a fixed ring (52) arranged at one end of the fixed seat (51), a fixed cylinder (53) evenly arranged on the fixed ring (52), a rotating cylinder (54) sleeved on the fixed cylinder (53), a changing member (55) arranged between the rotating cylinders (54), a secondary gear (56) arranged at one end of one of the rotating cylinders (54), a main gear (57) meshing with the secondary gear (56), and a pressing motor (58) arranged at one end of the main gear (57).

8. The hydraulic shallow drawing forming device for producing air guide rings according to claim 7, characterized in that: The side wall of the fixing seat (51) can be connected to the inner top of the bearing frame (11), the fixing ring (52) can be aligned with the bearing hole (111), and the outer wall of the pressing motor (58) away from the main gear (57) can be connected to one side of the fixing seat (51).

9. The hydraulic shallow drawing forming device for producing air guide rings according to claim 8, characterized in that: The changing member (55) comprises a pressing bar (551) and changing bars (552) symmetrically connected to the two ends of the pressing bar (551); the changing bar (552) is L-shaped, wherein one end of the changing bar (552) away from the pressing bar (551) can be connected to the outer wall of the corresponding rotating cylinder (54) by rotation, and the other end of the changing bar (552) away from the pressing bar (551) can be connected to the outer wall of another corresponding rotating cylinder (54) by rotation.

10. A hydraulic shallow drawing forming process for producing an air guide ring, using a hydraulic shallow drawing forming device for producing an air guide ring as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When producing the air guide ring, the cut annular plate is first placed on the carrier (11), and then the lifting cylinder (14) is started, and the lifting plate (15) is pushed by the connecting block (141) to move toward the annular plate along the distribution direction of the bearing column (12), and the annular plate is pressed so that the annular plate is located between the lifting plate (15) and the carrier (11); S2, the driving cylinder (16) is started, and the two forming dies (19) are driven to descend and approach the annular plate through the driving plate (161). During this process, the rotating motor (17) is started, and the two forming dies (19) are driven to start rotating through the rotating plate (171). At the same time, the electric slide plate (173) is started, and the corresponding support rods (18) and the forming dies (19) are driven to move on the slide rail (172) and approach each other to reach a suitable position, so as to facilitate the subsequent stretching and forming of the to-be-deformed area of ​​the annular plate; S3. When the tip of the forming die (19) rotates and contacts the side wall of the annular plate to be deformed, on the one hand, the electric ring plate (22) is started, driving the corresponding arc plate (24) and the bending roller (26) to slide along the track of the annular slide rail (21). At this time, the sliding speed of the electric ring plate (22) is greater than the rotation speed of the forming die (19); on the other hand, the micro cylinder (27) is started to push the corresponding arc plate (24) to rotate slowly, so that the arc plate (24) and the connecting strip (25) gradually approach the side wall of the annular plate to be deformed. In this process, since the arc plate (24) is arc-shaped, the bending roller (26) will squeeze the side wall of the annular plate to be deformed as the arc plate (24) rotates, so that the side wall of the annular plate to be deformed has a fixed point pre-crease, and this cycle is repeated; S4. During the working process of S3, the telescopic cylinder (32) is started to push the telescopic plate (33) down to a height aligned with the tip of the forming mold (19), and then the dragging cylinder (37) is started to push the dragging plate (38), and the dragging plate (38) further pushes the clamping member (39) to clamp the side wall of the annular plate to be deformed, thereby tightening the side wall of the annular plate to be deformed; as the side wall of the annular plate to be deformed gradually sags inward, the electric slider (35) is started to slide along the opening direction of the arc strip (34) with the clamping member (39), so that when the side wall of the annular plate to be deformed sags inward, the side wall of the annular plate to be deformed can also be clamped and tightened.

Images