阅读说明：本技术 一种汽轮机叶片毛坯的专用锻造装置及其使用方法 (Special forging device for turbine blade blank and using method thereof ) 是由 杨雨禾 于 2020-07-14 设计创作，主要内容包括：本发明涉及汽轮机配件加工领域,具体为一种汽轮机叶片毛坯的专用锻造装置及其使用方法,包括底座,底座上固定有锻造台和立架,锻造台上开设有用来放置叶片的嵌槽,立架上设置有锤锻机构和吹尘机构,锤锻机构与吹尘机构传动连接,锤锻机构上设置有用来对叶片压紧固定的压紧机构。该种汽轮机叶片毛坯的专用锻造装置及其使用方法,通过锤锻机构对叶片进行锻造锤击,并且带动压紧机构对叶片进行压紧固定,从而避免叶片在锻造时因锤头的冲击产生晃动,从而有助于提高锻造精度,进而有助于提高叶片加工质量,而且通过吹尘机构对叶片的锻造锤击位置进行吹尘处理,保持叶片表面干净,提高叶片的锻造质量以及提高良品率。(The invention relates to the field of turbine fitting processing, in particular to a special forging device for a turbine blade blank and a using method thereof. This kind of special forging device of steam turbine blade blank and application method thereof forges the hammering through hammer forging mechanism to the blade to it compresses tightly fixedly to drive hold-down mechanism to the blade, thereby avoid the blade to rock because of the impact production of tup when forging, thereby help improving and forge the precision, and then help improving blade processingquality, blow the dirt through the forging hammering position of blowing dirt mechanism to the blade and handle moreover, keep the blade surface clean, improve the forging quality of blade and improve the yields.)

1. The utility model provides a special forging device of steam turbine blade blank, includes base (1), its characterized in that: the blade pressing device is characterized in that a forging table (2) and a vertical frame (9) are fixed on the base (1), an embedded groove (26) used for placing a blade is formed in the forging table (2), a hammer forging mechanism and a dust blowing mechanism are arranged on the vertical frame (9), the hammer forging mechanism is in transmission connection with the dust blowing mechanism, and a pressing mechanism (24) used for pressing and fixing the blade is arranged on the hammer forging mechanism.

2. The special forging device for the turbine blade blank according to claim 1, wherein: hammer forging mechanism is including fixing uide bushing (20) on grudging post (9), sliding connection has slide bar (19) in uide bushing (20), the vertical direction setting of slide bar (19), the lower extreme of slide bar (19) is fixed with many arriss pole (22), the upper end of many arriss pole (22) is fixed with bulge loop (21), and bulge loop (21) can support the knot contact with the lower extreme of uide bushing (20), the lower extreme of many arriss pole (22) is fixed with tup (5), tup (5) are located caulking groove (26) directly over, the lantern ring (6) has been cup jointed on many arriss pole (22), lantern ring (6) can be gone up on many arriss pole (22) and slide from top to bottom, be connected through spring (7) between lantern ring (22) and bulge loop (21).

3. The special forging device for the turbine blade blank according to claim 2, wherein: be fixed with branch (23) on the lantern ring (6), and branch (23) level is horizontal, the one end downside that lantern ring (6) were kept away from in branch (23) is fixed with jib (29), hold-down mechanism (24) are fixed to the lower extreme of jib (29).

4. The special forging device for the turbine blade blank according to claim 2, wherein: a supporting plate (8) is fixed in the middle of the left side of the vertical frame (9), a motor (10) is fixed on the supporting plate (8), a rocker (27) is fixed on the output shaft of the motor (10), the rocker (27) is vertical to the output shaft of the motor (10), one end of the rocker (27) far away from the output shaft of the motor (10) is fixedly and rotatably connected with one end of the first connecting rod (11), the other end of the first connecting rod (11) is provided with a second connecting rod (12) and a third connecting rod (16), one end of the second connecting rod (12) is in fixed-shaft rotary connection with the upper end of the vertical frame (9), the other end of the second connecting rod is in fixed-shaft rotary connection with one end of the first connecting rod (11) far away from the rocker (27), one end of the third connecting rod (16) is in fixed-shaft rotary connection with the upper end of the sliding rod (19), and the other end of the third connecting rod is in fixed-shaft rotary connection with one end of the first connecting rod (11) far away from the rocker (27).

5. The special forging device for the turbine blade blank according to claim 4, wherein: the dust blowing mechanism comprises an air cylinder (17), one end fixed shaft of the air cylinder (17) is rotatably connected to one end of a second cantilever (14), the second cantilever (14) is horizontally arranged, one end, away from the air cylinder (17), of the second cantilever (14) is fixed to the upper end of the right side of the vertical frame (8), a piston rod (13) is slidably connected to the inside of the air cylinder (5), and one end, located outside the air cylinder (17), of the piston rod (13) is rotatably connected with one end fixed shaft of a first connecting rod (11) away from the rocker (27).

6. The special forging device for the turbine blade blank according to claim 5, wherein: blow dirt mechanism and still include air nozzle (3), air nozzle (3) are fixed on cantilever (4), the left side lower extreme department in grudging post (9) is fixed in cantilever (4), and the directional caulking groove (26) of the injection direction of air nozzle (3) is to the position of tup (5), air nozzle (3) are connected inflator (17) through the trachea, and are connected with check valve two (18) on trachea (17), the directional air nozzle (3) of the direction that switches on of check valve two (18), be connected with check valve one (15) on the lateral wall of inflator (17), the inside of the directional inflator (17) of the direction that switches on of check valve one (15).

7. The special forging device for the turbine blade blank according to claim 3, wherein: the compressing mechanism (24) is positioned on the right side of the hammer head (5), the compressing mechanism (24) comprises a boss (31) fixed to the lower end of a hanging rod (29), a plurality of pressing rods (28) penetrate through the boss (31), the pressing rods (28) are arranged at equal intervals along the circumferential direction, the pressing rods (28) can slide up and down on the boss (31), a limiting ring (30) is fixed to the upper end of each pressing rod (28), and the limiting ring (30) is connected with the upper surface of the boss (31) through a second spring (32); the outer side wall of the boss (31) is sleeved with a rotating ring (39), the rotating ring (39) can rotate on the boss (31) in a fixed-shaft mode, a first gear ring (38) is fixed on the upper surface of the rotating ring (39), a second gear ring (40) is fixed on the lower surface of the rotating ring (39), the first gear ring (38), the rotating ring (39) and the second gear ring (40) share the central axis, a plurality of threaded holes are formed in the outer peripheral wall of the boss (31), the threaded holes correspond to the pressure levers (28), threaded holes are connected with screw rods (33) in threaded manner, one ends of the screw rods (33) can be in abutting-buckling contact with the corresponding pressure levers (28), the other ends of the screw rods are located on the outer sides of the threaded holes, one ends of the screw rods (33) located on the outer sides of the threaded holes are fixed with tooth columns (41), and the tooth; the outer side wall bottom of boss (31) is fixed with vertical ascending support (35), the upper end dead axle of support (35) rotates and is connected with pivot (36), pivot (36) and depression bar (28) mutually perpendicular.

8. The special forging device for the turbine blade blank according to claim 7, wherein: one end of the rotating shaft (36) is fixed with a first gear (34), the other end of the rotating shaft is fixed with a second gear (37), the first gear (34) is meshed with a first gear ring (38), and the second gear (37) can be meshed with a rack (25) fixed on the forging table (2).

9. The special forging device for the turbine blade blank according to claim 8, wherein: the rack (25) is arranged vertically upwards.

10. The method for using a forging apparatus dedicated to a steam turbine blade blank according to any one of claims 1 to 9, wherein: the method comprises the following steps:

the method comprises the following steps: the hammer forging mechanism drives the pressing mechanism (24) to press and fix the blades, and the blades are forged and hammered after being pressed and fixed;

step two: the pressing mechanism (24) is driven to reset through the resetting of the hammer forging mechanism;

step three: the hammer forging mechanism drives the dust blowing mechanism to blow dust to the forging hammering position of the blade, and the dust blowing mechanism automatically supplements air in the resetting process of the hammer forging mechanism.

Technical Field

The invention relates to the field of processing of turbine accessories, in particular to a special forging device for a turbine blade blank and a using method thereof.

Background

The key part of steam turbine during steam turbine blade, the blade of steam turbine are the curved surface form usually, and it is carrying out the hammering to its surface, because the surface of blade can drop metal slag bits during the hammering, consequently the slag bits imbeds its structure of inside destruction of blade easily when the hammer is to its hammering, leads to scrapping even, reduces the yields. Must carry out the forging of blank at the in-process that carries out blade processing, and because the blade blank is consequently not convenient for fix the blank for the curved surface form, lead to making the blade blank rock when the hammering easily to lead to the hammering position inaccurate, reduce the processingquality of blade.

In view of this, we propose a special forging device for turbine blade blank and its using method.

Disclosure of Invention

The invention aims to provide a special forging device for a turbine blade blank and a using method thereof, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a special forging device of steam turbine blade blank, includes the base, is fixed with on the base and forges platform and grudging post, forges the bench and offers the caulking groove that is used for placing the blade, is provided with hammer forging mechanism and blows dirt mechanism on the grudging post, and hammer forging mechanism is connected with blowing the transmission of dirt mechanism, is provided with in the hammer forging mechanism to be used for compressing tightly fixed hold-down mechanism to the blade.

Preferably, hammer forging mechanism is including fixing the uide bushing on the grudging post, sliding connection has the slide bar in the uide bushing, the vertical direction setting of slide bar, the lower extreme of slide bar is fixed with many arriss pole, the upper end of many arriss pole is fixed with the bulge loop, and the bulge loop can support the knot with the lower extreme of uide bushing and contact, the lower extreme of many arriss pole is fixed with the tup, the tup is located the caulking groove directly over, has cup jointed the lantern ring on the many arriss pole, the lantern ring can slide from top to bottom on many arriss pole, be connected through spring one between the lantern ring and the bulge loop.

Preferably, be fixed with branch on the lantern ring, and the branch level is horizontal, and the one end downside that the lantern ring was kept away from to branch is fixed with the jib, the fixed hold-down mechanism of lower extreme of jib.

Preferably, the left side middle part of grudging post is fixed with the backup pad, be fixed with the motor in the backup pad, be fixed with the rocker on the output shaft of motor, the output shaft mutually perpendicular of rocker and motor, the one end dead axle that the output shaft of motor was kept away from to the rocker rotates the one end of connecting rod one, the other end of connecting rod one is provided with connecting rod two and connecting rod three, the one end of connecting rod two rotates with the upper end dead axle of grudging post to be connected, the other end rotates with the one end dead axle that the rocker was kept away from to connecting rod one to be connected, the one end of connecting rod three rotates with the upper end dead axle of slide bar to be connected.

Preferably, the dust blowing mechanism comprises an air cylinder, one end of the air cylinder is connected to one end of a second cantilever in a fixed-shaft rotating mode, the second cantilever is horizontally transverse, one end, far away from the air cylinder, of the second cantilever is fixed to the upper end of the right side of the stand, a piston rod is connected to the inner portion of the air cylinder in a sliding mode, and one end, located outside the air cylinder, of the piston rod is connected with one end, far away from the rocker, of the first.

Preferably, the dust blowing mechanism further comprises an air nozzle, the air nozzle is fixed on the first cantilever, the first cantilever is fixed at the lower end of the left side of the stand, the jet direction of the air nozzle points to the position of the caulking groove on the hammer head, the air nozzle is connected with the air cylinder through an air pipe, the air pipe is connected with a second check valve, the conduction direction of the second check valve points to the air nozzle, the side wall of the air cylinder is connected with the first check valve, and the conduction direction of the first check valve points to the inside of the air cylinder.

Preferably, hold-down mechanism is located the right side of tup, and hold-down mechanism is including fixing the boss at the jib lower extreme, and it has a plurality of depression bars to run through on the boss, and is a plurality of the depression bar sets up along circumference trend equidistance, and the depression bar can slide from top to bottom on the boss, and the upper end of depression bar is fixed with the spacing ring, and the spacing ring is connected with the upper surface of boss through spring two.

Preferably, the swivel has been cup jointed to the lateral wall of boss, the swivel can dead axle on the boss rotates, the last fixed surface of swivel has ring gear one, the lower fixed surface of swivel has ring gear two, ring gear one, swivel and ring gear two sharing the central axis, a plurality of screw holes have been seted up on the periphery wall of boss, the screw hole is corresponding with the depression bar, and screw hole female connection has the screw rod, the one end of screw rod can be supported to detain the contact with corresponding depression bar, the other end is located the outside of screw hole, the one end that the screw rod is located the screw hole outside is fixed with the tooth post, the tooth post is connected with the meshing of ring gear two.

Preferably, a vertical upward support is fixed at the bottom of the outer side wall of the boss, a rotating shaft is rotatably connected to the fixed shaft at the upper end of the support and is perpendicular to the pressing rod, a first gear is fixed at one end of the rotating shaft, a second gear is fixed at the other end of the rotating shaft and is meshed with the first gear ring, the second gear can be meshed with a rack fixed on the forging table and is connected with the rack, and the rack is vertically arranged upward.

In addition, the application also provides a using method of the special forging device for the turbine blade blank, which comprises the following steps:

the method comprises the following steps: the hammer forging mechanism drives the pressing mechanism to press and fix the blades, and the blades are forged and hammered after being pressed and fixed;

step two: the pressing mechanism is driven to reset through the resetting of the hammer forging mechanism;

step three: the hammer forging mechanism drives the dust blowing mechanism to blow dust to the forging hammering position of the blade, and the dust blowing mechanism automatically supplements air in the resetting process of the hammer forging mechanism.

Compared with the prior art, the invention has the beneficial effects that:

according to the blade forging mechanism, the blade is forged and hammered through the hammer forging mechanism, and the pressing mechanism is driven to press and fix the blade, so that the blade blank is prevented from shaking due to impact of a hammer head during forging, the forging precision is improved, and the blade machining quality is improved.

Drive at hammer forging mechanism and blow dirt mechanism and blow the dirt and handle to the forging hammering position of blade blank in the forging hammering in-process of blade to make the sediment bits of blade blank forging hammering position department blow away by the air current, keep the blade surface clean, and then inside guaranteeing that the hammer does not have sediment bits embedding blade when hammering blade blank, improve the forging quality of blade blank and improve the yields, and make in the reset process of hammer forging mechanism blow the automatic supplementary air of dirt mechanism.

Drawings

FIG. 1 is a first schematic view of an assembly structure according to the present invention;

FIG. 2 is a second schematic view of the final assembly structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is a top view of a boss structure of the present invention

In the figure: 1-a base; 2-a forging station; 3-an air nozzle; 4, cantilever I; 5-a hammer head; 6-a collar; 7-a first spring; 8-a support plate; 9-erecting a frame; 10-a motor; 11-; a first connecting rod; 12-link two; 13-a piston rod; 14-cantilever two; 15-one-way valve one; 16-link three; 17-an air cylinder; 18-one-way valve II; 19-a slide bar; 20-a convex ring; 22-polygonal rod; 23-a strut; 24-a hold-down mechanism; 25-a rack; 26-caulking groove; 27-a rocker; 28-a pressure bar; 29-a boom; 30-a stop collar; 31-a boss; 32-spring two; 33-a screw; 34-gear one; 35-a scaffold; 36-a rotating shaft; 37-gear two; 38-gear ring one; 39-swivel; 40-gear ring II; 41-tooth column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

After a steam turbine blade is generally forged and subjected to heat treatment, each blade is machined by using a 3-coordinate linkage or 4-coordinate linkage numerical control machine tool. And the forging of blank is because the blade blank is the curved surface form, consequently is not convenient for fix the blank, leads to making the blade blank rock easily when the hammering to lead to hammering position inaccurate, reduce the processingquality of blade.

Referring to fig. 1 to 5, the present invention provides a technical solution:

the utility model provides a special forging device of steam turbine blade blank, includes base 1, is fixed with on the base 1 and forges platform 2 and grudging post 9, forges and offers the caulking groove 26 that is used for placing the blade on the platform 2, is provided with hammer forging mechanism and blows dirt mechanism on the grudging post 9, and hammer forging mechanism is connected with blowing the transmission of dirt mechanism, is provided with in the hammer forging mechanism to be used for compressing tightly fixed hold-down mechanism 24 to the blade.

In this embodiment, as shown in fig. 1 and 2, the hammer forging mechanism includes a guide sleeve 20 fixed on the stand 9, a slide rod 19 is slidably connected in the guide sleeve 20, the slide rod 19 is arranged in the vertical direction, a polygonal rod 22 is fixed at the lower end of the slide rod 19, a convex ring 21 is fixed at the upper end of the polygonal rod 22, the convex ring 21 can be in abutting-buckling contact with the lower end of the guide sleeve 20, a hammer head 5 is fixed at the lower end of the polygonal rod 22, the hammer head 5 is located right above the caulking groove 26, a lantern ring 6 is sleeved on the polygonal rod 22, the lantern ring 6 can slide up and down on the polygonal rod 22, and the lantern ring 22 is connected with the convex ring 21 through a spring i 7.

In this embodiment, as shown in fig. 1 and 2, a rod 23 is fixed to the collar 6, the rod 23 is horizontally disposed, a boom 29 is fixed to a lower side of one end of the rod 23 away from the collar 6, and a pressing mechanism 24 is fixed to a lower end of the boom 29.

In this embodiment, as shown in fig. 1 and 2, a supporting plate 8 is fixed in the middle of the left side of the vertical frame 9, a motor 10 is fixed on the supporting plate 8, a rocker 27 is fixed on an output shaft of the motor 10, the rocker 27 is perpendicular to the output shaft of the motor 10, one end of the rocker 27, which is far away from the output shaft of the motor 10, is fixed to a fixed shaft and is connected to one end of a first connecting rod 11 in a rotating manner, a second connecting rod 12 and a third connecting rod 16 are arranged at the other end of the first connecting rod 11, one end of the second connecting rod 12 is connected to the fixed shaft at the upper end of the vertical frame 9 in a rotating manner, the other end of the second connecting rod is connected to one end of the first connecting rod 11, which is far away from the rocker 27 in.

In this embodiment, as shown in fig. 1 and 2, the dust blowing mechanism comprises an air cylinder 17, one end of the air cylinder 17 is fixedly and rotatably connected to one end of a second cantilever 14, the second cantilever 14 is horizontally arranged, one end of the second cantilever 14 far away from the air cylinder 17 is fixed to the upper end of the right side of the stand 8, a piston rod 13 is slidably connected inside the air cylinder 5, and one end of the piston rod 13, which is located outside the air cylinder 17, is fixedly and rotatably connected to one end of a first connecting rod 11 far away from a rocker 27.

In this embodiment, as shown in fig. 1 and 2, the dust blowing mechanism further includes an air nozzle 3, the air nozzle 3 is fixed on a first cantilever 4, the first cantilever 4 is fixed at the lower end of the left side of the stand 9, the spraying direction of the air nozzle 3 points to the position of the caulking groove 26 to the hammer 5, the air nozzle 3 is connected with the air cylinder 17 through an air pipe, a second check valve 18 is connected with the air pipe 17, the conduction direction of the second check valve 18 points to the air nozzle 3, a first check valve 15 is connected with the side wall of the air cylinder 17, and the conduction direction of the first check valve 15 points to the inside of the air cylinder 17.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 3, the pressing mechanism 24 is located on the right side of the hammer head 5, the pressing mechanism 24 includes a boss 31 fixed at the lower end of the suspension rod 29, a plurality of pressing rods 28 penetrate through the boss 31, the plurality of pressing rods 28 are arranged at equal intervals along the circumferential direction, the pressing rods 28 can slide up and down on the boss 31, a limiting ring 30 is fixed at the upper end of the pressing rods 28, the limiting ring 30 is connected with the upper surface of the boss 31 through a second spring 32, and in an initial state, the lower end of the pressing rod 28 is lower than the bottom surface of the hammer head 5.

In this embodiment, as shown in fig. 3, 4, and 5, a rotating ring 39 is sleeved on an outer side wall of the boss 31, the rotating ring 39 can rotate on the boss 31 in a fixed-axis manner, a first gear ring 38 is fixed on an upper surface of the rotating ring 39, a second gear ring 40 is fixed on a lower surface of the rotating ring 39, the first gear ring 38, the rotating ring 39, and the second gear ring 40 share a central axis, a plurality of threaded holes are formed in an outer peripheral wall of the boss 31, the threaded holes correspond to the pressing rods 28, a screw 33 is connected in the threaded holes in a threaded manner, one end of the screw 33 can be in abutting-buckling contact with the corresponding pressing rod 28, the other end of the screw is located outside the threaded holes, a tooth post 41 is fixed at one end of the.

In this embodiment, as shown in fig. 3, 4 and 5, a vertically upward bracket 35 is fixed at the bottom of the outer side wall of the boss 31, a rotating shaft 36 is connected to the upper end of the bracket 35 in a fixed-shaft rotating manner, the rotating shaft 36 is perpendicular to the pressure lever 28, a first gear 34 is fixed at one end of the rotating shaft 36, a second gear 37 is fixed at the other end of the rotating shaft 36, the first gear 34 is connected with a first gear ring 38 in a meshing manner, the second gear 37 can be connected with a rack 25 fixed on the forging table 2 in a meshing manner, and the rack 25 is vertically upward.

The use method and the advantages of the invention are as follows: the special forging device for the steam turbine blade blank comprises the following steps of:

the method comprises the following steps: as shown in fig. 1, in the initial state of the whole device, the second connecting rod 12 and the third connecting rod 16 form an angle with the opening facing to the right, the hammer 5 is far away from the forging station 2, the pressing mechanism 24 is at the upper side of the forging station 2, the bolt 33 has no pressing force on the corresponding pressing rod 28, and the pressing rod 28 can move up and down on the boss 28;

the blade to be forged is placed in the caulking groove 26 on the forging platform 2, the caulking groove 26 has the function of limiting the blade on the horizontal plane, the blade is prevented from shifting on the horizontal plane due to the impact of the hammer 5 during forging, the forging precision is improved, the blade processing quality is improved, after the blade is placed, the motor 10 is started, as shown in fig. 1 and 2, the motor 10 drives the rocker 27 to rotate, the rotation of the rocker 27 applies thrust to the joint of the second connecting rod 12 and the third connecting rod 16 through the first connecting rod 11, the thrust increases the included angle between the second connecting rod 12 and the third connecting rod 16, the second connecting rod 12 and the third connecting rod 16 tend to be a straight line, downward thrust is applied to the sliding rod 19 through the third connecting rod 16, the sliding rod 19 slides downward under the guiding effect of the guide sleeve 20, and the downward movement of the sliding rod 19 synchronously drives the multi-edge rod 22 to move downward, and further, the hammer head 5 is driven to move downwards synchronously through the polygonal rod 22, the downward movement of the hammer head 5 approaches to the forging position of the blade in the caulking groove 26, meanwhile, the downward movement of the polygonal rod 22 drives the boss 31 to move downwards synchronously through the lantern ring 6, the supporting rod 23 and the suspension rod 29, so that the boss 31 drives each pressure rod 28 to move downwards synchronously, as the lower end of each pressure rod 28 is lower than the bottom surface of the hammer head 5, the pressure rod 28 firstly contacts with the blade in a buckling manner in the downward movement process of the polygonal rod 22, and the blade exerts an upward reaction force on the pressure rod 28 along with the downward movement of the polygonal rod 22, so that the pressure rod 28 slides upwards relative to the boss 31, and simultaneously, the spring two 32 is stretched through the limiting ring 30, so that the spring two 32 obtains a downward restoring force which has a downward pushing force on the pressure rod 28, so that the pressure rod 28 exerts a downward pressing force on the blade, and the upward reaction force exerted on, The hanger rods 29 and the support rods 23 apply upward thrust to the lantern ring 6, so that the lantern ring 6 moves upward relative to the polygonal rods 22 and compresses the springs 7, and the springs 7 obtain downward restoring force which has downward thrust to the lantern ring 6, so that the lantern ring 6 applies downward pressing force to the blade through the support rods 23, the hanger rods 29, the bosses 31 and the press rods 28, so that limit restraint on a vertical surface is applied to the blade, the blade is pressed and fixed in the process of forging and hammering the blade by the hammer heads 5, the blade is prevented from shifting on a horizontal plane due to the impact of the hammer heads 5 in forging, forging precision is improved, and processing quality of the blade is improved, and due to the fact that the upper surface of the blade is a curved surface, corresponding buckling contact distances between each press rod 28 and the blade are different, and upward moving distances between the press rods 28 and the bosses 31 are different, so that the compression rods 28 can form stable buckling contact with the blades, the compression stability of the blades is further improved, the blades are ensured not to shake when being hammered by the hammer 5, and the compression rods 28 form multi-point contact with the blades, so that the blades on different surfaces can be conveniently compressed, and the application range is enlarged;

as shown in fig. 3, 4 and 5, during the downward movement of the boss 31, the bracket 35 synchronously drives the rotating shaft 36 to move downward, so that the rotating shaft 36 synchronously drives the first gear 34 and the second gear 37 to move downward, the second gear 37 moves downward to approach and be meshed with the rack 25, so that the second gear 37 is driven to rotate under the tooth transmission action between the rack 25 and the second gear 37, so that the rotating shaft 36 is synchronously driven to rotate by the second gear 37, the first gear 38 is driven to rotate by the first gear 34, the rotating ring 39 and the second gear 40 are synchronously driven to rotate by the rotation of the first gear 38, the rotating posts 41 are driven to rotate by the rotation of the second gear 40 through the tooth transmission action between the second gear 40 and the tooth posts 41, so that the tooth posts 41 synchronously drive the screw 33 to rotate, the rotation of the screw 33 makes the screw 33 approach to the pressing rod 28 under the screw transmission action, and applies pressing force to the pressing rod 28, so that the pressure rod 28 cannot slide up and down on the boss 31, and therefore the pressure rod 28 applies stable pressing force to the blade;

when the first connecting rod 11 pushes the second connecting rod 12 and the third connecting rod 16 to form a straight line, the third connecting rod 16 pushes the sliding rod 19 to move downwards to the lowest position, so that the sliding rod 19 drives the hammer 5 to move downwards to the lowest position through the polygonal rod 22 and forge and hammer the blade, and further the blade blank is pressed and fixed in the blade forging process, so that the blade blank is prevented from shaking due to the impact of the hammer 5 in the blade forging process, the forging precision is improved, and the blade blank processing quality is improved;

step two, as shown in fig. 1 and fig. 2, after the blade is forged and hammered by the hammer head 5, because the motor 10 drives the rocker 27 to make a circular motion, after the connecting rod two 12 and the connecting rod three 16 form a straight line, the continuous rotation of the rocker 27 applies a pulling force to the connecting position of the connecting rod two 12 and the connecting rod three 16 through the connecting rod one 11, the pulling force makes the included angle between the connecting rod two 12 and the connecting rod three 16 become small, so that the connecting rod two 12 and the connecting rod three 16 return, and applies an upward pulling force to the sliding rod 19 through the connecting rod three 16, so that the sliding rod 19 slides upward and returns under the guiding action of the guide sleeve 20, the upward movement of the sliding rod 19 synchronously drives the multi-edge rod 22 to move upward, and further synchronously drives the hammer head 5 to move upward and return through the multi-edge rod 22, so as to perform the next forging and hammering, and simultaneously the upward movement of the multi-edge rod 22, therefore, the downward restoring force of the first spring 7 drives the lantern ring 6 to move downwards relative to the polygonal rod 22 and reset, after the lantern ring 6 resets, the polygonal rod 6 synchronously drives the boss 31 to move upwards through the lantern ring 6, the supporting rod 23 and the hanging rod 29, in the process of moving upwards of the boss 31, the support 35 synchronously drives the rotating shaft 36 to move upwards, so that the rotating shaft 36 synchronously drives the first gear 34 and the second gear 37 to move upwards, the second gear 37 moves upwards to drive the second gear 37 to rotate reversely under the tooth transmission action between the rack 25 and the second gear 37, so that the rotating shaft 36 is synchronously driven to rotate reversely through the second gear 37, the reverse rotation of the second gear 36 drives the first gear 38 to rotate reversely through the first gear 34, the reverse rotation of the first gear 38 synchronously drives the rotating ring 39 and the second gear 40 to rotate reversely, and the reverse rotation of the second gear 40 drives each tooth post 41 to rotate reversely through the tooth transmission action between the second gear 40 and the tooth post 41, therefore, the tooth post 41 synchronously drives the screw 33 to rotate reversely, the reverse rotation of the screw 33 enables the screw 33 to be far away from the pressure rod 28 under the action of screw transmission, the pressing force on the pressure rod 28 is relieved, the pressure rod 28 can slide up and down on the boss 31, the second gear 37 is separated from the rack 25 and resets along with the upward movement of the boss 31 after the rotary ring 40 and the tooth post 41 reset, the pressure rod 28 is far away from and does not contact with the blades after the pressing force on the pressure rod 28 is relieved by the screw 33, and the upward movement of the boss 31 enables the convex rod 28 to be far away from and not contact with the blades, so that the pressure rod 28 moves downwards relative to the boss 31 and resets under the action of the downward restoring force of the second spring 30, the blades are pressed and fixed during the next forging, and after the hammer 5 resets, the forged blades can be;

step three: as shown in fig. 1 and 2, in the process that the first connecting rod 11 pushes the second connecting rod 12 and the third connecting rod 16 to approach to a straight line, the first connecting rod 11 also applies a pushing force to the piston rod 13, so that the piston rod 13 compresses air inside the air cylinder 17, because the conduction direction of the first check valve 15 points to the inside of the air cylinder 15, and the conduction direction of the second check valve 18 points to the air nozzle 3, the air inside the air cylinder 17 can only be output to the air nozzle 3 from the air pipe after being compressed, and the air nozzle 3 blows to the forging hammering position of the blade, so that slag at the forging hammering position of the blade is blown away by the air flow, the surface of the blade blank is kept clean, and further, no slag is embedded into the blade when the hammer 5 hammers the blade, the forging quality of the blade blank is improved, and the yield is improved;

when the first connecting rod 11 pulls the second connecting rod 12 and the third connecting rod 16 to reset, the first connecting rod 11 also simultaneously exerts a pulling force on the piston rod 13, so that the space of the piston rod 13 on the inside of the air cylinder 17 is increased, and a suction force is generated inside the air cylinder 17, because the conduction direction of the first check valve 15 points to the inside of the air cylinder 15, and the conduction direction of the second check valve 18 points to the air nozzle 3, the suction force enables outside air to enter the inside of the air cylinder 17 through the first check valve 15, and the air inside the air cylinder 17 is automatically supplemented, so that dust blowing treatment is carried out on the blade blank at the next hammering.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.