CN114871335A

CN114871335A - Forming and punching machine for port of air guide duct of fan

Info

Publication number: CN114871335A
Application number: CN202210477942.3A
Authority: CN
Inventors: 潘旭光
Original assignee: Zhejiang Sanxin Technology Co ltd
Current assignee: Zhejiang Sanxin Technology Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-09

Abstract

A forming and punching machine for a port of a fan air duct comprises a rack, a rotary driving mechanism, a clamping turntable and a clamping mechanism, wherein the rotary driving mechanism comprises a rotary main shaft, and the upper end of the rotary main shaft is fixedly connected with the clamping turntable; the clamping turntable comprises a rotating chassis, a jacket is arranged on the upper side of the rotating chassis, a conical expansion core is inserted into the inner ring of the jacket, a tension pull rod is inserted into the expansion core, and the tension pull rod is inserted into the rotating main shaft and connected to the rotating main shaft through a bearing; the upper end of the tension pull rod extends out of the tension core and is fixedly connected with an upper positioning nut in a threaded manner, and the lower end of the tension pull rod extends out of the rotating main shaft and is connected with a clamping mechanism in a sleeved manner; one corner of the platform is fixedly connected with a flaring and edge pressing mechanism opposite to the clamping turntable, and a punching mechanism opposite to the clamping turntable is fixed on the platform on one side of the flaring and edge pressing mechanism. The forming and punching machine designed by the air guide duct forming and punching machine can replace manual processing of flanges and mounting holes on the air guide duct, not only is the processing production efficiency effectively improved, but also the labor intensity of workers can be effectively reduced.

Description

Forming and punching machine for port of air guide duct of fan

The technical field is as follows:

the invention relates to the technical field of fan processing equipment, in particular to a forming and punching machine for a fan air duct port.

Background art:

at present, the air duct is an important component of some axial flow fans, and has the functions of guiding air, reducing noise and the like. The existing air duct generally comprises a circular barrel, a panel is formed at the port of the air inlet of the barrel, a fan is arranged at the air inlet of the barrel, a motor on the fan can be fixed on the panel through a motor support, and the end of the air outlet of the barrel needs to be flanged and punched so that a protective net can be placed at the air outlet of the barrel; at present, the flanging and the punching at the air outlet of the cylinder are finished through manual processing, the processing efficiency is not high, and the labor intensity of workers is high.

The invention content is as follows:

the invention aims to overcome the defects in the prior art, and provides a forming and punching machine for a port of a fan air guide cylinder, which can replace manual machining of a flange and a mounting hole on the air guide cylinder, not only effectively improves the machining production efficiency, but also effectively reduces the labor intensity of workers.

A forming and punching machine for a port of a fan air duct comprises a rack, a rotary driving mechanism, a clamping turntable and a clamping mechanism, wherein the rack comprises a rectangular platform, and four corners of the platform are fixedly connected with stand columns; the rotary driving mechanism comprises a main shaft seat and a rotary main shaft, the main shaft seat is inserted and fixed in the middle of the platform, and the rotary main shaft is inserted and connected in the main shaft seat and is connected to the main shaft seat through a bearing; the upper end of the rotating main shaft extends out of the main shaft seat and is fixedly connected with the clamping turntable; the clamping turntable comprises a rotating chassis fixed on the rotating main shaft, a circular-ring-shaped jacket is arranged on the upper side of the rotating chassis, the inner wall of the inner ring of the jacket is conical, a conical expansion core is inserted and connected into the inner wall of the inner ring of the jacket, a tension pull rod is inserted and connected into the rotating main shaft, and the tension pull rod is inserted and connected onto the rotating main shaft through a bearing; the upper end of the tension pull rod extends out of the tension core and is fixedly connected with an upper positioning nut in a threaded manner, and the lower end of the tension pull rod extends out of the rotating main shaft and is connected with a clamping mechanism in a sleeved manner; one corner of the platform is fixedly connected with a flaring and edge pressing mechanism opposite to the clamping turntable, and a punching mechanism opposite to the clamping turntable is fixed on the platform on one side of the flaring and edge pressing mechanism;

the clamping sleeve on the clamping turntable consists of a plurality of fan-shaped clamping heads, each clamping head comprises an arc-shaped inner tensioning sleeve and an outer clamping plate, and a plurality of spoke rods are fixedly connected between the inner tensioning sleeve and the outer clamping plate; a plurality of guide grooves in a divergent shape are formed on the rotary base plate, T-shaped connecting columns are inserted into the guide grooves of the rotary base plate, and the upper ends of the connecting columns penetrate through the spacer bushes and are fixed on the outer clamping plate;

the flaring and edge pressing mechanism comprises a bottom plate fixed on the platform, a hydraulic cylinder mounting seat is fixed on one side of the bottom plate, which is far away from the platform, a horizontal feeding hydraulic cylinder is fixedly connected onto the hydraulic cylinder mounting seat, and a connecting block is fixed on a piston rod of the feeding hydraulic cylinder, which penetrates through the hydraulic cylinder mounting seat; horizontal feeding guide rails are fixed on the bottom plates on two sides of the feeding hydraulic cylinder, a feeding sliding block is inserted and sleeved on the feeding guide rails, a vertical feeding seat is fixed on the feeding sliding block, and a connecting block is fixed on the feeding seat; the feeding seat is fixed with a plurality of vertical lifting guide rails, lifting slide blocks are sleeved on the lifting guide rails in an inserted manner, wheel set mounting plates are fixedly connected onto the lifting slide blocks, notches are formed in one ends, close to the clamping rotary disc, of the wheel set mounting plates, vertical flared wheels and horizontal blank pressing wheels are inserted into the notches, the blank pressing wheels are located between the flared wheels and the side walls of the notches, connecting shafts are arranged on the blank pressing wheels and the flared wheels, the connecting shafts on the flared wheels and the blank pressing wheels are respectively inserted into the first bearing seat and the second bearing seat, and the first bearing seat and the second bearing seat are fixed on the wheel set mounting plates; the upper end of the feeding seat is fixedly connected with an installation support, a lifting hydraulic cylinder is fixed on the installation support, and a piston rod of the lifting hydraulic cylinder is fixed on the wheel set installation plate;

the mechanism of punching include that the horizontally feeds the slip table, feed the vertical lift slip table of fixedly connected with on the slide of slip table, be fixed with the cantilever frame on the slide of lift slip table, be fixed with the hole pincers on the cantilever frame, the hole pincers include the frame that punches a hole of "Contraband" font, fixedly connected with punching hydraulic cylinder on the up end of frame that punches a hole, fixedly connected with drift on punching hydraulic cylinder's the piston rod, the lower extreme of drift is inserted and is established in the notch of frame that punches a hole.

Preferably, the lower end of the upper rotating main shaft of the rotating driving mechanism extends out of the main shaft seat and is connected with a driving belt wheel through a key, a motor mounting seat is fixedly connected onto a platform on one side of the driving belt wheel, a servo motor is fixedly connected onto the motor mounting seat, a driving belt wheel is fixedly arranged on a rotating shaft of the servo motor in a plug bush mode, and a synchronous belt is sleeved on the driving belt wheel and is connected with the driving belt wheel through the synchronous belt in a plug bush mode.

Preferably, a circular limiting nut is screwed on the rotating main shaft at the lower side of the driving belt wheel, the lower end face of the driving belt wheel abuts against the limiting nut, the upper end face of the driving belt wheel abuts against a baffle ring, and the baffle ring is screwed and fixed on the rotating main shaft; and a central hole for installing the tensioning pull rod is formed in the rotating main shaft, and the aperture of the central hole is larger than the diameter of the tensioning pull rod.

Preferably, the clamping mechanism comprises a circular clamping hydraulic cylinder, the lower end of the tensioning pull rod penetrates through the clamping hydraulic cylinder to form a lower support shaft, a hydraulic cylinder mounting plate is fixedly connected to the upper end face of a cylinder body of the clamping hydraulic cylinder, a hydraulic cylinder mounting plate plug bush is fixed on the tensioning pull rod, a branch support plate is formed on one side of the hydraulic cylinder mounting plate, a vertical fixing pin is inserted into the outer end of the branch support plate, the upper end of the fixing pin is inserted and fixed on the fixing seat, and the upper end of the fixing seat is fixed on the platform; a piston rod of the clamping hydraulic cylinder is fixedly connected with a rotation stopping plate, the rotation stopping plate is inserted on a lower fulcrum shaft of the tensioning pull rod and abuts against the lower end face of the tensioning pull rod, the lower end of the lower fulcrum shaft is in threaded connection with a lower positioning nut, and the lower positioning nut abuts against the tensioning pull rod; the rotation stopping plate is formed with a rotation stopping rod, the outer end of the rotation stopping rod is fixedly connected with a rotation stopping pin in an inserted mode, and the rotation stopping pin is connected to the branch supporting plate in an inserted mode.

Preferably, an upper fulcrum shaft is formed at the upper end of the tension pull rod, an upper positioning nut is screwed and fixed on the upper end surface of the upper fulcrum shaft, a stepped hole opposite to the tension pull rod is formed on the tension core, the upper fulcrum shaft on the tension pull rod is inserted and arranged, an upper deep groove ball bearing and an upper thrust bearing are inserted and sleeved in the stepped hole of the tension core, the inner ring of the upper deep groove ball bearing abuts against the upper end surface of the tension pull rod, and the outer ring of the upper deep groove ball bearing abuts against the stepped surface of the stepped hole of the tension core; the lower retainer ring of the upper thrust bearing is abutted against the upper deep groove ball bearing, the upper retainer ring of the upper thrust bearing is abutted against the gasket, and the gasket is abutted against the upper positioning nut;

the upper end and the lower end of the limiting nut are respectively provided with a sinking platform, a roller bearing is inserted in the sinking platform at the upper side of the limiting nut, the limiting nut is connected to the tensioning pull rod through the roller bearing, a lower thrust bearing is inserted in the sinking platform at the lower side of the limiting nut, an upper retaining ring of the lower thrust bearing is abutted against the ground bottom surface of the sinking platform, and a lower retaining ring of the lower thrust bearing is abutted against the hydraulic cylinder mounting plate.

Preferably, a circular supporting guide rail is fixed on the upper end face of the platform around the spindle seat, the supporting guide rail abuts against a plurality of guide wheels, and the guide wheels are installed and fixed on the lower end face of the rotating chassis.

Preferably, a vertical dovetail groove rail is arranged between the hole pliers and the cantilever bracket, a dovetail guide block is formed on the punching frame of the hole pliers, and the guide block on the punching frame is inserted into the dovetail groove rail; the upper end and the lower end of the dovetail groove rail are both fixed with a baffle plate, and the length of the dovetail groove rail is greater than that of the guide block on the punching frame.

The invention has the beneficial effects that:

the forming and punching machine designed by the air guide duct forming and punching machine can replace manual processing of flanges and mounting holes on the air guide duct, not only is the processing production efficiency effectively improved, but also the labor intensity of workers can be effectively reduced.

Description of the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a side view in half section of the present invention;

FIG. 5 is an enlarged view of a portion of the structure shown at A in FIG. 4;

FIG. 6 is a schematic view of a portion of the enlarged structure at B in FIG. 4;

FIG. 7 is a schematic perspective view of the present invention without the air duct;

FIG. 8 is a schematic perspective view of an inner flaring blank-pressing mechanism according to the present invention;

FIG. 9 is a schematic front view of the inner flaring blank-pressing mechanism of the present invention;

FIG. 10 is a schematic perspective view of the inner punching mechanism of the present invention;

FIG. 11 is a schematic front view of the inner hole punching mechanism of the present invention;

FIG. 12 is a view showing the respective states of the air guide duct of the present invention during the manufacturing process.

In the figure: 10. a frame; 11. a platform; 12. a column;

20. a rotation driving mechanism; 21. a main shaft seat; 22. rotating the main shaft; 23. a limit nut; 24. a driven pulley; 25. a synchronous belt; 26. a driving pulley; 27. a driven pulley; 28. a servo motor;

30. rotating the chassis; 311. a guide groove; 32. a guide wheel; 33. supporting the guide rail; 34. a chuck; 341. an inner expansion sleeve; 342. an outer splint; 343. a spoke; 35. expanding the core; 36. tensioning the pull rod; 37. an upper positioning nut; 38. an upper thrust bearing; 39. an upper deep groove ball bearing; 310. a spacer sleeve;

40. a flaring and edge pressing mechanism; 41. a base plate; 42. a feed hydraulic cylinder; 43. a hydraulic cylinder mounting seat; 44. a feed guide rail; 45. a feed slide block; 46. connecting blocks; 47. a feeding seat; 48. a wheel set mounting plate; 481. a notch; 49. a lifting guide rail; 410. a lifting slide block; 411. mounting a bracket; 412. a lifting hydraulic cylinder; 413. a flaring wheel; 414. an edge pressing wheel; 415. a first bearing housing; 416. a second bearing housing;

50. a punching mechanism; 51. a feed slide; 52. lifting the sliding table; 53. a cantilever mount; 54. a punching mechanism; 541. punching a hole frame; 542. a punching hydraulic cylinder; 543. a punch; 55. dovetail groove rails;

60. a punching mechanism; 61. clamping a hydraulic cylinder; 62. a hydraulic cylinder mounting plate; 621. a branch support plate; 63. a rotation stopping plate; 631. a self-rotating rod; 64. a rotation stopping pin; 65. a fixed seat; 66. a fixed seat; 68. and a lower positioning nut.

70. An air duct; 71. an initial air duct; 72. flaring the air duct; 73. pressing the air duct; 74. and (4) a perforated air duct.

The specific implementation mode is as follows:

example (b): as shown in fig. 1 to 11, the forming and punching machine for the port of the air duct of the fan comprises a frame 10, a rotary driving mechanism 20, a clamping turntable 30 and a clamping mechanism 60, wherein the frame 10 comprises a rectangular platform 11, and four corners of the platform 11 are fixedly connected with upright posts 12; the rotary driving mechanism 20 comprises a spindle seat 21 and a rotary spindle 22, the spindle seat 21 is inserted and fixed in the middle of the platform 11, and the rotary spindle 22 is inserted and connected in the spindle seat 21 and is connected to the spindle seat 21 through a bearing; the upper end of the rotating main shaft 22 extends out of the main shaft seat 21 and is fixedly connected with the clamping turntable 30; the clamping turntable 30 comprises a rotary chassis 31 fixed on the rotary main shaft 22, an annular jacket is arranged on the upper side of the rotary chassis 31, the inner wall of the inner ring of the jacket is conical, a conical expansion core 35 is inserted and connected in the conical jacket, a tension pull rod 36 is inserted and connected on the expansion core 35, and the tension pull rod 36 is inserted and connected in the rotary main shaft 22 and is connected on the rotary main shaft 22 through a bearing; the upper end of the tension pull rod 36 extends out of the tension core 35 and is fixedly screwed with an upper positioning nut 37, and the lower end of the tension pull rod 36 extends out of the rotating main shaft 22 and is connected with a clamping mechanism 60 in a sleeved mode; a flaring and edge pressing mechanism 40 opposite to the clamping turntable 30 is fixedly connected to one corner of the platform 11, and a punching mechanism 50 opposite to the clamping turntable 30 is fixed on the platform 11 on one side of the flaring and edge pressing mechanism 40;

the clamping sleeve on the clamping turntable 30 consists of a plurality of fan-shaped clamping heads 34, each clamping head 34 comprises an arc-shaped inner tensioning sleeve 341 and an outer clamping plate 342, and a plurality of spoke rods 343 are fixedly connected between the inner tensioning sleeve 341 and the outer clamping plate 342; a plurality of divergent guide grooves 311 are formed on the rotary chassis 31, a T-shaped connecting column is inserted into the guide grooves 311 of the rotary chassis 31, and the upper end of the connecting column penetrates through the spacer 310 and is fixed on the outer clamping plate 342;

the flaring and edge pressing mechanism 40 comprises a bottom plate 41 fixed on the platform 11, a hydraulic cylinder mounting seat 43 is fixed on one side of the bottom plate 41 far away from the platform 11, a horizontal feeding hydraulic cylinder 42 is fixedly connected on the hydraulic cylinder mounting seat 43, and a piston rod of the feeding hydraulic cylinder 42 penetrates through the hydraulic cylinder mounting seat 43 and is fixed with a connecting block 46; horizontal feeding guide rails 44 are fixed on the bottom plates 41 on two sides of the feeding hydraulic cylinder 42, a feeding sliding block 45 is inserted and sleeved on the feeding guide rails 44, a vertical feeding seat 47 is fixed on the feeding sliding block 45, and a connecting block 46 is fixed on the feeding seat 47; a plurality of vertical lifting guide rails 49 are fixed on the feeding seat 47, a lifting slider 410 is inserted in the lifting guide rails 49, a wheel set mounting plate 48 is fixedly connected on the lifting slider 410, a notch 481 is formed at one end, close to the clamping turntable 30, of the wheel set mounting plate 48, a vertical flared wheel 413 in a bell mouth shape and a horizontal edge pressing wheel 414 are inserted in the notch 481, the edge pressing wheel 414 is positioned between the side walls of the flared wheel 413 and the notch 481, connecting shafts are respectively arranged on the edge pressing wheel 414 and the flared wheel 413, the connecting shafts on the flared wheel 413 and the edge pressing wheel 414 are respectively inserted in the first bearing seat 415 and the second bearing seat 416, and the first bearing seat 415 and the second bearing seat 416 are fixed on the wheel set mounting plate 48; the upper end of the feeding seat 47 is fixedly connected with a mounting bracket 411, a lifting hydraulic cylinder 412 is fixed on the mounting bracket 411, and a piston rod of the lifting hydraulic cylinder 412 is fixed on the wheel set mounting plate 48;

the punching mechanism 50 comprises a horizontal feeding sliding table 51, a vertical lifting sliding table 52 is fixedly connected to a sliding seat of the feeding sliding table 51, a cantilever frame 53 is fixed to the sliding seat of the lifting sliding table 52, a hole clamp 54 is fixed to the cantilever frame 53, the hole clamp 54 comprises a punching frame 541 shaped like Contraband, a punching hydraulic cylinder 542 is fixedly connected to the upper end face of the punching frame 541, a punch 543 is fixedly connected to a piston rod of the punching hydraulic cylinder 542, and the lower end of the punch 543 is inserted into a notch of the punching frame 541.

Preferably, the lower end of the rotating main shaft 22 on the rotating driving mechanism 20 extends out of the main shaft seat 21 and is connected with a driven pulley 24 through a key, a motor mounting seat 28 is fixedly connected to the platform 11 on one side of the driven pulley 24, a servo motor 27 is fixedly connected to the motor mounting seat 28, a driving pulley 26 is fixed to a rotating shaft of the servo motor 27 in a sleeved mode, and a synchronous belt 25 is sleeved on the driving pulley 26 and the driven pulley 24 and is connected through the synchronous belt 25.

Preferably, a circular ring-shaped limit nut 23 is screwed on the rotating main shaft 22 at the lower side of the driven belt wheel 24, the lower end face of the driven belt wheel 24 abuts against the limit nut 23, the upper end face of the driven belt wheel 24 abuts against a baffle ring, and the baffle ring is screwed and fixed on the rotating main shaft 22; a central hole for installing the tension pull rod 36 is formed on the rotating main shaft 22, and the aperture of the central hole is larger than the diameter of the tension pull rod 36.

Preferably, the clamping mechanism 60 includes a circular clamping hydraulic cylinder 61, the lower end of the tension pull rod 36 penetrates through the clamping hydraulic cylinder 61 to form a lower spindle, a hydraulic cylinder mounting plate 62 is fixedly connected to the upper end surface of the cylinder body of the clamping hydraulic cylinder 61, the hydraulic cylinder mounting plate 62 is fixed to the tension pull rod 36 in an inserting manner, a branch plate 621 is formed on one side of the hydraulic cylinder mounting plate 62, a vertical fixing pin 65 is inserted into the outer end of the branch plate 621, the upper end of the fixing pin 65 is inserted into and fixed to a fixing seat 66, and the upper end of the fixing seat 66 is fixed to the platform 11; a piston rod of the clamping hydraulic cylinder 61 is fixedly connected with a rotation stopping plate 63, the rotation stopping plate 63 is inserted on a lower fulcrum of the tension pull rod 36 and abuts against the lower end face of the tension pull rod 36, the lower end of the lower fulcrum is in threaded connection with a lower positioning nut 68, and the lower positioning nut 68 abuts against the tension pull rod 36; the rotation stopping plate 63 is formed with a rotation stopping rod 631, the outer end of the rotation stopping rod 631 is inserted and fixed with a rotation stopping pin 64, and the rotation stopping pin 64 is inserted and fixed on the branch support plate 621.

Preferably, an upper fulcrum shaft is formed at the upper end of the tension pull rod 36, an upper positioning nut 37 is screwed and fixed on the upper end face of the upper fulcrum shaft, a stepped hole opposite to the tension pull rod 36 is formed on the tension core 35, an upper support shaft on the tension pull rod 36 is inserted and arranged, an upper deep groove ball bearing 39 and an upper thrust bearing 38 are inserted and sleeved in the stepped hole of the tension core 35, the inner ring of the upper deep groove ball bearing 39 abuts against the upper end face of the tension pull rod 36, and the outer ring of the upper deep groove ball bearing 39 abuts against the stepped face of the stepped hole of the tension core 35; the lower retainer ring of the upper thrust bearing 38 abuts against the upper deep groove ball bearing 39, the upper retainer ring of the upper thrust bearing 38 abuts against the gasket, and the gasket abuts against the upper positioning nut 37;

the upper end and the lower end of the limit nut 23 are both formed with sunk tables, the roller bearing 210 is inserted in the sunk table on the upper side of the limit nut 23, the limit nut 23 is connected to the tensioning pull rod 36 through the roller bearing 210, the lower thrust bearing 29 is inserted in the sunk table on the lower side of the limit nut 23, the upper retainer ring of the lower thrust bearing 29 is abutted against the ground bottom surface of the sunk table, and the lower retainer ring of the lower thrust bearing 29 is abutted against the hydraulic cylinder mounting plate 62.

Preferably, a circular support guide rail 33 is fixed on the upper end surface of the platform 11 around the spindle base 21, the support guide rail 33 abuts against a plurality of guide wheels 32, and the guide wheels 32 are fixed on the lower end surface of the rotating chassis 31.

Preferably, a vertical dovetail groove rail 55 is arranged between the hole pliers 54 and the cantilever bracket 53, a dovetail guide block is formed on the punching bracket 541 of the hole pliers 54, and the guide block on the punching bracket 541 is inserted into the dovetail groove rail 55; the upper end and the lower end of the dovetail groove rail 55 are both fixed with a baffle plate, and the length of the dovetail groove rail 55 is greater than that of the guide block on the punching frame 541.

Preferably, the lifting hydraulic cylinder 412 and the feeding hydraulic cylinder 42 both adopt double-stroke hydraulic cylinders; the feeding sliding table 51 and the lifting sliding table 52 respectively comprise a base plate, end plates are fixed at two ends of the base plate, a sliding seat is inserted between the end plates, a ball screw is connected to the sliding seat in a threaded mode, two ends of the ball screw are hinged to the end plates, a motor is fixed to the end plate at one end of the base plate, and a rotating shaft of the motor is fixedly connected with the ball screw.

The working principle is as follows: the invention relates to a forming and punching machine for a port of a fan air duct, which comprises the following steps of:

1. firstly, sleeving an unprocessed initial air duct 71 on a jacket of the clamping turntable 30, arranging a panel on the initial air duct 71 on the rotating chassis 31, starting a clamping hydraulic cylinder 61 on the clamping mechanism 60, driving a tensioning pull rod 36 to pull down by the clamping hydraulic cylinder 61, driving an expanding core 35 to move down, expanding a chuck 34 on the jacket, and clamping the initial air duct 71 by the chuck 34; then, the servo motor 27 on the rotation driving mechanism 20 is started, and the servo motor 27 drives the initial air duct 71 to rotate;

2. after the initial air duct 71 rotates, starting the feeding hydraulic cylinder 42 on the flaring and edge-pressing mechanism 40 to drive the flaring wheel 413 to move to the upper side of the side edge of the initial air duct 71, then starting the lifting hydraulic cylinder 412 to drive the flaring wheel 413 to move downwards to press the side edge of the upper end port of the initial air duct 71, rotating for one circle along with the initial air duct 71 to finish flaring, and waiting for the flaring air duct 72;

3. the lifting hydraulic cylinder 412 returns to drive the flaring wheel 413 to move upwards, the feeding hydraulic cylinder 42 continues to drive the feeding seat 47 to move, the edge pressing wheel 414 is driven to move above the flaring of the flaring air cylinder 72, then the lifting hydraulic cylinder 412 drives the edge pressing wheel 414 to move downwards, and the edge pressing wheel 414 presses the outer edge ring of the flaring on the flaring air cylinder 72 into a horizontal annular flanging, so that the edge pressing air cylinder 73 is obtained;

4. after flaring and edge pressing are finished, the lifting hydraulic cylinder 412 and the feeding hydraulic cylinder 42 return sequentially, then the lifting sliding table 52 and the feeding sliding table 51 on the punching mechanism 50 drive the punching frame 541 on the hole pliers 54 to be inserted and sleeved on the flange pressed by the edge pressing air cylinder 73, then the punching hydraulic cylinder 542 on the hole pliers 54 is started, the flange of the edge pressing air cylinder 73 is uniformly punched, the punching air cylinder 74 is obtained, and the air guide cylinder is processed;

when the dovetail groove rail 55 is arranged between the hole clamp 54 and the cantilever bracket 53, the hole clamp 54 can move up and down, after the flanging of the edge pressing air cylinder 73 enters the punching bracket 541, the upper end surface and the lower end surface of the flanging do not contact with the upper bottom surface and the lower bottom surface of the notch in the punching bracket 541 before punching, but move down along with the punch 543, the punch 543 firstly contacts with the upper end surface of the flanging, and move down continuously along with the punch 543, the flanging can limit the punch 543 to move down, so that the whole hole clamp 54 moves up in the dovetail groove rail 55, when the lower bottom surface of the notch in the punching bracket 541 abuts against the lower end surface of the flanging, the hole clamp 54 stops moving, and the punch 543 is matched with the punching bracket 541 to complete the processing of the flanging hole position.

The examples are intended to illustrate the invention, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the invention as set forth in the appended claims.

Claims

1. A forming and punching machine for a port of a fan air duct comprises a rack (10), a rotary driving mechanism (20), a clamping turntable (30) and a clamping mechanism (60), wherein the rack (10) comprises a rectangular platform (11), and four corners of the platform (11) are fixedly connected with stand columns (12); the rotary driving mechanism (20) comprises a spindle seat (21) and a rotary spindle (22), the spindle seat (21) is fixedly inserted in the middle of the platform (11), and the rotary spindle (22) is inserted in the spindle seat (21) and is connected to the spindle seat (21) through a bearing; the upper end of the rotating main shaft (22) extends out of the main shaft seat (21) and is fixedly connected with the clamping turntable (30); the method is characterized in that: the clamping turntable (30) comprises a rotating chassis (31) fixed on the rotating main shaft (22), an annular jacket is arranged on the upper side of the rotating chassis (31), the inner wall of the inner ring of the jacket is conical, a conical expansion core (35) is inserted and connected, a tension pull rod (36) is inserted and connected onto the expansion core (35), and the tension pull rod (36) is inserted and connected into the rotating main shaft (22) and is connected onto the rotating main shaft (22) through a bearing; the upper end of the tension pull rod (36) extends out of the tension core (35) and is fixedly connected with an upper positioning nut (37) in a threaded manner, and the lower end of the tension pull rod (36) extends out of the rotating main shaft (22) and is connected with a clamping mechanism (60) in a sleeved manner; one corner of the platform (11) is fixedly connected with a flaring and edge pressing mechanism (40) opposite to the clamping turntable (30), and a punching mechanism (50) opposite to the clamping turntable (30) is fixed on the platform (11) on one side of the flaring and edge pressing mechanism (40);

the clamping sleeve on the clamping turntable (30) consists of a plurality of fan-shaped clamping heads (34), each clamping head (34) comprises an arc-shaped inner tensioning sleeve (341) and an outer clamping plate (342), and a plurality of spoke rods (343) are fixedly connected between the inner tensioning sleeve (341) and the outer clamping plate (342); a plurality of guide grooves (311) in a divergent shape are formed on the rotary base plate (31), T-shaped connecting columns are inserted into the guide grooves (311) of the rotary base plate (31), and the upper ends of the connecting columns penetrate through the spacer bushes (310) and are fixed on the outer clamping plates (342);

the flaring and edge pressing mechanism (40) comprises a bottom plate (41) fixed on the platform (11), a hydraulic cylinder mounting seat (43) is fixed on one side, away from the platform (11), of the bottom plate (41), a horizontal feeding hydraulic cylinder (42) is fixedly connected to the hydraulic cylinder mounting seat (43), and a piston rod of the feeding hydraulic cylinder (42) penetrates through the hydraulic cylinder mounting seat (43) and is fixed with a connecting block (46); a horizontal feeding guide rail (44) is fixed on the bottom plates (41) on two sides of the feeding hydraulic cylinder (42), a feeding sliding block (45) is inserted and sleeved on the feeding guide rail (44), a vertical feeding seat (47) is fixed on the feeding sliding block (45), and a connecting block (46) is fixed on the feeding seat (47); the feeding seat (47) is fixed with a plurality of vertical lifting guide rails (49), the lifting guide rails (49) are sleeved with lifting sliders (410), the lifting sliders (410) are fixedly connected with wheel set mounting plates (48), notches (481) are formed in one ends, close to the clamping turntables (30), of the wheel set mounting plates (48), vertical flared wheels (413) in a bell mouth shape and horizontal edge pressing wheels (414) are inserted into the notches (481), the edge pressing wheels (414) are located between the side walls of the flared wheels (413) and the notches (481), connecting shafts are arranged on the flared wheels (414) and the edge pressing wheels (413), the connecting shafts on the flared wheels (413) and the edge pressing wheels (414) are respectively inserted into the first bearing seats (415) and the second bearing seats (416), and the first bearing seats (415) and the second bearing seats (416) are fixed on the wheel set mounting plates (48); the upper end of the feeding seat (47) is fixedly connected with a mounting bracket (411), a lifting hydraulic cylinder (412) is fixed on the mounting bracket (411), and a piston rod of the lifting hydraulic cylinder (412) is fixed on the wheel set mounting plate (48);

punching mechanism (50) including horizontally feed slip table (51), feed vertical lift slip table (52) of fixedly connected with on the slide of slip table (51), be fixed with cantilever frame (53) on the slide of lift slip table (52), be fixed with hole pincers (54) on cantilever frame (53), hole pincers (54) include punching frame (541) of "Contraband" font, fixedly connected with pneumatic cylinder (542) that punches a hole on the up end of punching frame (541), fixedly connected with drift (543) on the piston rod of pneumatic cylinder (542) that punches a hole, the lower extreme of drift (543) is inserted and is established in the notch of punching frame (541).

2. The forming and punching machine for the port of the air guide duct of the fan as claimed in claim 1, wherein: the lower extreme of rotatory main shaft (22) on rotary driving mechanism (20) stretches out spindle drum (21) and has driven band pulley (24) through the key-type connection, fixedly connected with motor mount pad (28) on platform (11) of driven band pulley (24) one side, fixedly connected with servo motor (27) on motor mount pad (28), the plug bush is fixed with driving pulley (26) in the pivot of servo motor (27), the plug bush has hold-in range (25) and is connected through hold-in range (25) on driving pulley (26) and driven band pulley (24).

3. The forming and punching machine for the port of the air guide duct of the fan as claimed in claim 2, wherein: a circular limiting nut (23) is screwed on the rotating main shaft (22) at the lower side of the driven belt wheel (24), the lower end face of the driven belt wheel (24) abuts against the limiting nut (23), the upper end face of the driven belt wheel (24) abuts against a baffle ring, and the baffle ring is screwed and fixed on the rotating main shaft (22); a central hole for installing the tension pull rod (36) is formed in the rotating main shaft (22), and the diameter of the central hole is larger than the diameter of the tension pull rod (36).

4. The forming and punching machine for the port of the air guide duct of the fan as claimed in claim 3, wherein: the clamping mechanism (60) comprises a circular clamping hydraulic cylinder (61), the lower end of the tensioning pull rod (36) penetrates through the clamping hydraulic cylinder (61) to form a lower support shaft, a hydraulic cylinder mounting plate (62) is fixedly connected to the upper end face of the cylinder body of the clamping hydraulic cylinder (61), the hydraulic cylinder mounting plate (62) is fixed to the tensioning pull rod (36) in an inserting and sleeving manner, a branch supporting plate (621) is formed on one side of the hydraulic cylinder mounting plate (62), a vertical fixing pin (65) is inserted into the outer end of the branch supporting plate (621), the upper end of the fixing pin (65) is inserted and fixed onto a fixing seat (66), and the upper end of the fixing seat (66) is fixed onto the platform (11); a piston rod of the clamping hydraulic cylinder (61) is fixedly connected with a rotation stopping plate (63), the rotation stopping plate (63) is inserted and sleeved on a lower fulcrum of the tensioning pull rod (36) and abuts against the lower end face of the tensioning pull rod (36), the lower end of the lower fulcrum is in threaded connection with a lower positioning nut (68), and the lower positioning nut (68) abuts against the tensioning pull rod (36); the rotation stopping plate (63) is formed with a rotation stopping rod (63), the outer end of the rotation stopping rod (63) is fixedly connected with a rotation stopping pin (64) in an inserting mode, and the rotation stopping pin (64) is connected to the branch supporting plate (621) in an inserting mode.

5. The forming and punching machine for the port of the air guide duct of the fan as claimed in claim 4, wherein: an upper fulcrum shaft is formed at the upper end of the tension pull rod (36), an upper positioning nut (37) is fixed on the upper end surface of the upper fulcrum shaft in a threaded mode, a step hole opposite to the tension pull rod (36) is formed in the tension core (35), an upper support shaft on the tension pull rod (36) is inserted into the step hole of the tension core (35), an upper deep groove ball bearing (39) and an upper thrust bearing (38) are inserted into the step hole of the tension core (35), the inner ring of the upper deep groove ball bearing (39) abuts against the upper end surface of the tension pull rod (36), and the outer ring of the upper deep groove ball bearing (39) abuts against the step surface of the step hole of the tension core (35); the lower retainer ring of the upper thrust bearing (38) abuts against the upper deep groove ball bearing (39), the upper retainer ring of the upper thrust bearing (38) abuts against the gasket, and the gasket abuts against the upper positioning nut (37);

the upper end and the lower end of the limiting nut (23) are respectively provided with a sinking platform, a roller bearing (210) is inserted in the sinking platform on the upper side of the limiting nut (23), the limiting nut (23) is connected to the tensioning pull rod (36) through the roller bearing (210), a lower thrust bearing (29) is inserted in the sinking platform on the lower side of the limiting nut (23), an upper retainer ring of the lower thrust bearing (29) is abutted against the ground bottom surface of the sinking platform, and a lower retainer ring of the lower thrust bearing (29) is abutted against the hydraulic cylinder mounting plate (62).

6. The forming and punching machine for the port of the air guide duct of the fan as claimed in claim 1, wherein: the upper end face of the platform (11) on the periphery of the spindle seat (21) is fixedly provided with an annular supporting guide rail (33), the supporting guide rail (33) abuts against a plurality of guide wheels (32), and the guide wheels (32) are fixedly arranged on the lower end face of the rotary chassis (31).

7. The forming and punching machine for the port of the air guide duct of the fan as claimed in claim 1, wherein: a vertical dovetail groove rail (55) is arranged between the hole pliers (54) and the cantilever frame (53), a dovetail guide block is formed on the punching frame (541) of the hole pliers (54), and the guide block on the punching frame (541) is inserted into the dovetail groove rail (55); the upper end and the lower end of the dovetail groove rail (55) are respectively fixed with a baffle plate, and the length of the dovetail groove rail (55) is greater than that of the guide block on the punching frame (541).