CN115090825A

CN115090825A - Forging equipment and forging process of annular forge piece

Info

Publication number: CN115090825A
Application number: CN202210921117.8A
Authority: CN
Inventors: 马一鸣; 薛成军
Original assignee: Suzhou Dongsheng Forging Co ltd
Current assignee: Suzhou Dongsheng Forging Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-09-23

Abstract

The utility model belongs to the technical field of the work piece forging and specifically relates to a forging equipment and forging technology of annular forging are related to, and wherein equipment is including first conveyer belt and the second conveyer belt that is used for conveying the metal ingot, first conveyer belt with the top of second conveyer belt is equipped with the mounting bracket, be equipped with on the mounting bracket be used for with the metal ingot is followed first conveyer belt is carried extremely first transport structure on the second conveyer belt, be equipped with on the mounting bracket and be used for heating the heating structure of metal ingot, one side of mounting bracket is equipped with forging machine and oil quenching pond, just still be equipped with on the mounting bracket and be used for with the metal ingot carry extremely forging machine or the second transport structure in oil quenching pond. This application has the effect of being convenient for prevent that the annular member fracture from appearing when using.

Description

Forging equipment and forging process for annular forge piece

Technical Field

The application relates to the field of workpiece forging, in particular to forging equipment and a forging process of an annular forging.

Background

Forging is a processing method which utilizes forging machinery to apply pressure on a metal blank to enable the metal blank to generate plastic deformation so as to obtain a forging with certain mechanical property, certain shape and certain size, the defects of casting-state looseness and the like generated in the smelting process of metal can be eliminated through forging, the microstructure is optimized, and meanwhile, because a complete metal streamline is saved, the mechanical property of the forging is generally superior to that of a casting made of the same material.

At present, a ring-shaped part is formed in a pouring mode firstly, is cooled into a rough part in a quenching mode after being demoulded, and is finally refined, so that the usable ring-shaped part is formed.

In the process of implementing the present application, the inventors found that the above-mentioned technology has at least the following problems: annular parts are usually used in an extrusion environment, so the requirement of the annular forging on the toughness of the annular forging is generally high, while the toughness of the traditional cast annular parts is poor, and the annular parts are often broken when used in the extrusion environment.

Disclosure of Invention

In order to prevent the annular piece from being broken in use, the application provides forging equipment and a forging process for the annular forging piece.

The application provides a forging equipment of annular forging adopts following technical scheme:

an apparatus for forging an annular forging, comprising: a first conveyer belt and second conveyer belt for conveying the metal ingot, first conveyer belt with the top of second conveyer belt is equipped with the mounting bracket, be equipped with on the mounting bracket be used for with the metal ingot is followed first conveyer belt is carried extremely first transport structure on the second conveyer belt, be equipped with on the mounting bracket and be used for heating the heating structure of metal ingot, one side of mounting bracket is equipped with forging machine and oil quenching pond, just still be equipped with on the mounting bracket be used for with the metal ingot carry extremely the forging machine or the second transport structure in oil quenching pond.

Through adopting above-mentioned technical scheme, transmit the ingot on from first conveyer belt to the second conveyer belt through first transport structure, then heat the ingot to predetermined temperature through heating structure, then, carry the ingot after will heating to the forging machine through second transport structure, so can be convenient for forge the ingot after heating annular forging through the forging machine, and at the in-process of forging, can be convenient for eliminate the loose defect of the original as-cast condition of ingot, optimize microstructure in order to promote the toughness of metal, then, the annular forging that rethread second transport structure will still be hotter is carried and is cooled off to in the oil quenching pond, the process of carrying out the oil quenching cooling to annular forging through the oil quenching pond also can promote the toughness of metal, so can be convenient for prevent the cracked condition from appearing when the use of annular piece through above-mentioned technical scheme.

In a specific implementation scheme, the first conveying structure comprises a first straight line module which is arranged on the mounting frame and located above the first conveying belt and the second conveying belt, a first air cylinder is arranged on a sliding block of the first straight line module, and a first grabbing piece which is used for grabbing the metal ingots is connected to a telescopic rod of the first air cylinder.

Through adopting above-mentioned technical scheme, be convenient for make first snatching the piece through first cylinder and be close to the ingot to through snatching the ingot, then be convenient for through first sharp module with the ingot that first snatching the piece and transmit to the second conveyer belt by first conveyer belt, so be convenient for promote transportation ingot automation level and efficiency.

In a specific possible implementation scheme, the first grabbing piece comprises an installation piece connected with a telescopic rod of the first air cylinder, a hinged joint is arranged at the end of the installation piece, a clamping hand is hinged to the hinged joint, and a clamping hand driving piece used for driving the clamping hand to rotate so as to clamp the metal ingot is arranged on the installation piece.

Through adopting above-mentioned technical scheme, when the card hand is close to the ingot, can be convenient for clip the ingot through card hand driving piece drive card hand rotation to be convenient for realize snatching of ingot.

In a specific possible implementation scheme, the heating structure comprises a second air cylinder which is arranged on the mounting frame and located above the second conveyor belt, and an electromagnetic heating structure for heating the metal ingots is arranged on a telescopic rod of the second air cylinder.

Through adopting above-mentioned technical scheme, be convenient for be close to the metal ingot with the electromagnetic heating structure through the second cylinder to be convenient for use the electromagnetic heating structure to heat the metal ingot to predetermined temperature.

In a specific implementation mode, the electromagnetic heating structure comprises an electric power control box connected to the telescopic rod of the second air cylinder, and an electromagnetic heating coil capable of being sleeved on a metal ingot is connected to the electric power control box.

By adopting the technical scheme, the heating temperature of the electromagnetic heating coil is convenient to control through the electric power control box, so that the metal ingot is in the temperature threshold range needing to be controlled.

In a specific possible embodiment, an ingot placing seat is provided on the second conveyor belt, and the ingot placing seat is provided with a coil slot into which the electromagnetic heating coil can extend.

By adopting the technical scheme, when the electromagnetic heating coil is sleeved on the outer side of the metal ingot and extends into the coil groove, the electromagnetic heating coil can completely surround the metal ingot from the side wall of the metal ingot, so that the uniformity of heating the metal ingot is improved.

In a specific possible implementation scheme, the second conveying structure comprises a second linear module arranged on the mounting frame, a motor is arranged on a sliding block on the second linear module, a third air cylinder is further rotatably connected to the sliding block on the second linear module, the motor is connected with the third air cylinder, and the motor can drive the third air cylinder to rotate; and a second grabbing piece is connected to the telescopic rod of the third cylinder.

Through adopting above-mentioned technical scheme, be convenient for drive third cylinder through the motor and rotate to be convenient for connect the second on the third cylinder and snatch the piece orientation and forge machine or oil and quench the pond, thereby be convenient for snatch the second and carry the metal ingot that the piece snatched to forge machine or oil and quench the pond.

In a specific can embodiment, the forging machine includes the frame, the top of frame is connected with the fourth cylinder, just be connected with the punching press head on the telescopic link of fourth cylinder, just be located on the frame be equipped with the punching press seat on the position of punching press head below, offer on the punching press seat and be used for placing the blind hole of metal spindle, just the punching press seat in be fixed with the through-hole post on the diapire in the blind hole.

Through adopting above-mentioned technical scheme, the fourth cylinder is convenient for drive the punching press head and strikes the ingot metal of arranging in on the punching press seat to be convenient for forge the ingot metal into predetermined annular forging.

In a specific possible implementation scheme, a fifth cylinder is arranged in the machine base and below the stamping seat, and a through hole for the telescopic rod of the fifth cylinder to penetrate out is formed in the stamping seat and at the position of the bottom wall of the blind hole.

Through adopting above-mentioned technical scheme, annular forging forges the shaping back on the punching press seat, and the telescopic link through fifth cylinder passes the perforation, can be convenient for will make annular forging demould from the punching press seat.

The forging process of the annular forging piece adopts the following technical scheme:

a forging process of an annular forging piece comprises the following steps:

conveying the metal ingots from the first conveyor belt to the second conveyor belt through the first conveying structure;

heating the metal ingots on the second conveyor belt to 1100-1200 ℃ by a heating structure, and then conveying the metal ingots heated to 1100-1200 ℃ to a forging machine by a second conveying structure;

forging the metal ingot into an annular forging by a forging machine, and then air-cooling the annular forging to 350-400 ℃;

conveying the annular forged piece to a second conveying belt through a second conveying structure, normalizing the annular forged piece by using a heating structure, keeping the normalizing temperature of the annular forged piece at 800-900 ℃ for not less than 20h, and then air-cooling the annular forged piece to 200-300 ℃;

and (3) placing the annular forging which is air-cooled to 200-300 ℃ into an oil quenching pool through a second conveying structure for cooling to obtain the cooled annular forging.

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

1. transferring the metal ingot from the first conveyor belt to the second conveyor belt through the first conveying structure, and then heating the metal ingot to 1100-1200 ℃ through the heating structure; then, the heated metal ingot is conveyed to a forging machine through a second conveying structure, so that the heated metal ingot can be conveniently forged into an annular forging piece through the forging machine, the defect that the metal ingot is loose originally in an as-cast state can be conveniently eliminated in the forging process, the microstructure structure is optimized to improve the toughness of metal, then the annular forging piece which is still hot is conveyed to an oil quenching pool through the second conveying structure to be cooled, the toughness of the metal can be improved in the process of carrying out oil quenching cooling on the annular forging piece through the oil quenching pool, and the annular forging piece can be prevented from being broken when in use through the technical scheme;

2. the heating temperature of the electromagnetic heating coil is conveniently controlled by the electric power control box, so that the metal ingot is conveniently in the temperature threshold range needing to be controlled;

3. when the electromagnetic heating coil is sleeved on the outer side of the metal ingot and extends into the coil groove, the electromagnetic heating coil can completely surround the metal ingot from the outer side wall of the metal ingot, so that the uniformity of heating the metal ingot is improved.

Drawings

FIG. 1 is a schematic overall structure diagram of a forging device for annular forgings in the embodiment of the application.

Fig. 2 is a schematic view of the overall structure of the first conveying structure in the embodiment of the present application.

Fig. 3 is a structural view for showing a connection relationship between the second conveyor and the ingot holding seat in the embodiment of the present application.

Fig. 4 is a schematic structural diagram for showing a positional relationship among the second trailing arm, the heating structure, and the second conveyor belt in the embodiment of the present application.

Fig. 5 is a schematic structural diagram for showing a positional relationship between the second conveyor belt and the second conveying structure in the embodiment of the present application.

Fig. 6 is a sectional view for embodying the structure of the forging machine in the embodiment of the present application.

Fig. 7 is a schematic structural diagram for embodying the structure of the oil quenching tank in the embodiment of the present application.

FIG. 8 is a schematic flow chart of a forging process of an annular forging in an embodiment of the present application.

Description of reference numerals: 1. a first conveyor belt; 2. a second conveyor belt; 3. a mounting frame; 31. a frame body; 32. a first trailing arm; 33. a second trailing arm; 34. a third trailing arm; 4. a first conveying structure; 41. a first linear module; 42. a first cylinder; 43. a first grasping member; 431. a mounting member; 432. a hinge joint; 433. clamping a hand; 4331. rotating the rod; 4332. a semi-ring chuck; 434. an electric telescopic rod; 5. a heating structure; 51. a second cylinder; 52. an electromagnetic heating structure; 521. mounting a plate; 522. an electric power control box; 523. an electromagnetic heating coil; 6. a forging machine; 61. a machine base; 62. a fourth cylinder; 63. stamping a head; 64. punching a seat; 641. blind holes; 642. a through-hole column; 65. a fifth cylinder; 7. an oil quenching tank; 71. a tank body; 72. a sixth cylinder; 73. an oil filter screen; 8. a second conveying structure; 81. a second linear module; 82. a third cylinder; 83. a driven gear; 84. a motor; 85. a drive gear; 86. a second grasping member; 9. a metal ingot placing seat; 91. a coil slot.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses forging equipment of annular forging. Referring to fig. 1, the forging apparatus for annular forgings comprises a first conveyor belt 1, a second conveyor belt 2 and a mounting frame 3, wherein the first conveyor belt 1 and the second conveyor belt 2 are arranged side by side and are used for conveying metal ingots (raw materials for forging annular forgings), and the mounting frame 3 is arranged above the first conveyor belt 1 and the second conveyor belt 2; the mounting rack 3 is provided with a first conveying structure 4 for conveying metal ingots from the first conveyor belt 1 to the second conveyor belt 2 and a heating structure 5 for heating the metal ingots conveyed to the second conveyor belt 2; a forging machine 6 for forging the heated metal ingot into an annular forging and an oil quenching pool 7 for cooling the annular forging are arranged at the side edge of the mounting frame 3; and a second conveying structure 8 for conveying the metal ingots heated on the second conveyor belt 2 to the forging machine 6 or the oil quenching tank 7 is further arranged on the mounting frame 3.

Specifically, referring to fig. 1, the mounting frame 3 includes a frame body 31, and a first trailing arm 32, a second trailing arm 33, and a third trailing arm 34 on the top of the mounting frame 3 and having a length direction that is identical to the conveying direction of the first conveyor belt 1. Referring to fig. 2, the first conveying structure 4 includes a first linear module 41 connected to the bottom walls of the frame body 31, the first longitudinal arm 32 and the second longitudinal arm 33, a slider of the first linear module 41 is disposed downward, a first cylinder 42 is fixed to the bottom wall of the slider of the first linear module 41, the first cylinder 42 is disposed along the vertical direction, a telescopic rod of the first cylinder 42 can extend downward, and a first grabbing member 43 for grabbing the metal ingot is disposed at the bottom end of the telescopic rod of the first cylinder 42. The first grabbing piece 43 comprises a mounting piece 431 fixedly connected with the bottom end of a telescopic rod of the first air cylinder 42 at the middle position of the top wall, two ends of the mounting piece 431 are respectively provided with a hinge head 432, each hinge head 432 is hinged with a clamping hand 433, each clamping hand 433 comprises a rotating rod 4331, the middle part of each rotating rod 4331 is hinged with the corresponding hinge head 432, and the bottom end of each rotating rod 4331 is fixed with a semi-ring clamping head 4332; all articulated on the roof of installed part 431 and the position that is located first cylinder 42 telescopic link both sides have a card hand driving piece, and in the implementation, card hand driving piece specifically is electric telescopic handle 434, and electric telescopic handle 434 and similar dwang 4331 one-to-one, and electric telescopic handle 434's one end is articulated with installed part 431, and electric telescopic handle 434's the other end is articulated with the top that corresponds dwang 4331.

Referring to fig. 3, the second conveyor belt 2 is provided with two cylindrical metal ingots made of high temperature resistant glass material for placing the seat 9, the top wall of the metal ingot placing seat 9 is used for placing the metal ingots, the top wall of the metal ingot placing seat 9 is provided with a coil groove 91 coaxially arranged with the whole metal ingot placing seat 9, the part of the top wall of the metal ingot placing seat 9, which is located in the middle of the coil groove 91, is used for bearing the metal ingots, and the diameter of the part is not smaller than the diameter of the metal ingots.

In practice, the first cylinder 42 can be conveyed by the first rectilinear module 41 directly above the ingot on the first conveyor belt 1; further, the telescopic rod of the first air cylinder 42 is extended, so that the first grabbing piece 43 can grab the corresponding metal ingot on the first conveyor belt 1 conveniently, and then the first air cylinder 42 contracts the telescopic rod of the first air cylinder 42 to enable the metal ingot to be separated from the first conveyor belt 1 upwards; further, the first cylinder 42 is moved to just above the ingot placing base 9 on the second conveyor 2 by making the first linear module 41, and then the first cylinder 42 extends the telescopic rod downward until the ingot comes into contact with the ceiling wall of the ingot placing base 9, and then the first catching member 43 releases the ingot on the ingot placing base 9 and makes the ingot coaxial with the coil groove 91.

Referring to fig. 1 and 4, the heating structure 5 includes a second cylinder 51 having a cylinder body fixed to a middle position of the bottom wall of the second trailing arm 33, the second cylinder 51 is disposed in a vertical direction, and an extension rod of the second cylinder 51 is downwardly extendable. An electromagnetic heating structure 52 is fixed at the bottom end of the telescopic rod of the second cylinder 51, and the electromagnetic heating structure 52 is used for heating the metal ingot placed on the metal ingot placing seat 9. Specifically, the electromagnetic heating structure 52 includes a mounting plate 521 fixedly connected to the top wall and the bottom wall of the telescopic rod of the second cylinder 51, an electric power control box 522 is disposed on the top wall of the mounting plate 521 and on positions on two sides of the telescopic rod of the second cylinder 51, each electric power control box 522 is connected to an electromagnetic heating coil 523 disposed below the rotating plate, each electromagnetic heating coil 523 can be sleeved on the outer side of the side wall of the metal ingot along the vertical direction, and the bottom end of each electromagnetic heating coil 523 can extend into a coil groove 91 formed in the top wall of the corresponding metal ingot placing seat 9.

In implementation, after the metal ingots are placed on the two metal ingot placing seats 9, the telescopic rods of the two metal ingot placing seats are extended downwards through the second air cylinder 51, so that the two electromagnetic heating coils 523 are sleeved on the outer sides of the corresponding side walls of the metal ingots until the bottom ends of the electromagnetic heating coils 523 extend into the corresponding coil grooves 91; then, the electromagnetic heating coil 523 is controlled by the electric power control box 522 to heat the ingot.

Referring to fig. 1 and 5, the second conveying structure 8 includes a second linear module 81 fixedly linked to the second longitudinal arm 33, the third longitudinal arm 34 and the bottom wall of the frame body 31, the length direction of the second linear module 81 is identical to the length direction of the first linear module 41, a sliding block of the second linear module 81 is also arranged downward, a third cylinder 82 arranged along the vertical direction is rotatably connected to the bottom wall of the sliding block of the second linear module 81 through a bearing, an expansion link of the third cylinder 82 can extend downward, and a driven gear 83 coaxially arranged with the cylinder body is fixed to the side wall of the cylinder body of the third cylinder 82; a motor 84 with a rotating shaft vertically arranged downwards is fixed on the bottom wall of the second linear module 81 sliding block, and a driving gear 85 meshed with the driven gear 83 is coaxially fixed on the rotating shaft of the motor 84. A second grabbing piece 86 is fixed at the bottom end of the third cylinder 82, and the second grabbing piece 86 is used for grabbing the heated metal ingot; the second grasping member 86 is similar in structure to the first grasping member 43 except that the first grasping member 43 is disposed entirely in the vertical direction and the second grasping member 86 is disposed entirely in the horizontal direction.

Referring to fig. 1 and 6, a forging machine 6 for forging the heated metal ingot is disposed at one side of the mounting frame 3, and specifically, the forging machine 6 includes a base 61 disposed at one side of the mounting frame 3, a fourth cylinder 62 is fixed at the top of the base 61, the fourth cylinder 62 is disposed in a vertical direction, an expansion rod of the fourth cylinder 62 is downwardly extendable, and a disc-shaped punching head 63 is fixed at the bottom end of the expansion rod of the fourth cylinder 62; a punching seat 64 which is coaxial with the punching head 63 is fixed on the base 61 and is positioned right below the punching head 63, and a blind hole 641 which is coaxial with the punching seat 64 is formed on the top wall of the punching seat 64; the bottom wall of the punch holder 64 in the blind hole 641 is fixed with a through hole column 642 coaxially arranged with the blind hole 641, and the height of the through hole column 642 is consistent with the height of the annular forged piece to be forged.

Be fixed with on the position that just is located punching press seat 64 in frame 61 and is not less than 3 fifth cylinder 65, fifth cylinder 65 sets up along vertical direction, and the telescopic link of fifth cylinder 65 can extend upwards. The punching seat 64 is provided with a plurality of through holes which are in one-to-one correspondence with the fifth cylinders 65 and through which the telescopic rods of the fifth cylinders 65 penetrate, the diameter of each through hole is consistent with that of the telescopic rod of the fifth cylinder 65, and the plurality of through holes are uniformly distributed around the through hole posts 642 at the orifices on the bottom wall of the blind hole 641. The top wall of the telescopic rod of the fifth cylinder 65 is a circular plane, and in an initial state, the top wall of the telescopic rod of the fifth cylinder 65 is flush with the bottom wall of the blind hole 641.

In practice, after the ingot is heated, the heated ingot is conveyed to a position right below the second linear module 81 by the second conveyor belt 2, then, the second linear module 81 slides the slide block to a position near above the second conveyor belt 2, so that the second gripping member 86 is placed above the heated ingot, then, the telescopic rod of the second gripping member is extended downwards by the third cylinder 82, the third cylinder 82 is driven by the motor 84 to rotate to adjust the position of the second gripping member 86 until the semi-ring 4332 of the second gripping member 86 is placed outside the side wall of the heated ingot, and then the heated ingot is gripped by the second gripping member 86; further, under the combined action of the second linear module 81, the third cylinder 82 and the motor 84, the grasped metal ingot is placed in the blind hole 641 of the stamping seat 64, and at this time, the metal ingot is pressed against the top wall of the through-hole column 642; then, the fourth cylinder 62 drives the stamping head 63 to repeatedly hammer the metal ingot until the heated metal ingot sinks into the space around the blind hole 641 and the through hole 642, at this time, the through hole 642 perforates the middle position of the metal ingot, and the metal ingot is also deformed into a ring-shaped forging; then, the telescopic rod of the fifth cylinder 65 is extended upwards to lift the annular forging, so that the annular forging is separated from the blind hole 641 for demoulding.

Referring to fig. 1 and 7, the oil quenching tank 7 includes a tank body 71 disposed on one side of the mounting frame 3, and quenching oil is preset in the tank body 71; the tank body 71 is in a square groove shape, sixth air cylinders 72 arranged along the vertical direction are fixed at four corners of the tank body 71, and the telescopic rod of each sixth air cylinder 72 can extend upwards; the top ends of the telescopic rods of the four sixth cylinders 72 are connected with an oil filter screen 73 which can be placed in the tank body 71, the oil filter screen 73 is used for placing an annular forging piece, and the oil filter screen 73 is placed above the tank body 71 in an initial state.

In implementation, the demolded annular forging is placed into the oil filter screen 73 through the second conveying structure 8, and then the oil filter screen 73 with the annular forging is lowered into the pool body 71 through the sixth air cylinder 72, so that the annular forging is cooled through quenching oil conveniently; after the annular forging is cooled, the telescopic rod of the annular forging is extended by the sixth cylinder 72 to lift the oil filter screen 73, so that the quenching oil is filtered out from the oil filter screen 73, and the cooled annular forging can be obtained.

The embodiment of the application discloses forging process of annular forging, based on the forging equipment of above-mentioned annular forging, refer to FIG. 8, forging process of annular forging includes:

s100, conveying metal ingots from the first conveyor belt 1 to the second conveyor belt 2 through the first conveying structure 4;

s200, heating the metal ingots on the second conveyor belt 2 to about 1150 ℃ through a heating structure 5, and then conveying the metal ingots heated to about 1150 ℃ to a forging machine 6 through a second conveying structure 8;

s300, forging the metal ingot into an annular forging piece through a forging machine 6, and then air-cooling the annular forging piece to about 375 ℃;

s400, conveying the annular forged piece to a second conveyor belt 2 through a second conveying structure, normalizing the annular forged piece by using a heating structure 5, keeping the normalizing temperature of the annular forged piece at about 850 ℃ for continuously not less than 20 hours, and then air-cooling the annular forged piece to about 250 ℃;

s500, the annular forging which is air-cooled to about 250 ℃ is placed into an oil quenching pool 7 through a second conveying structure 8 to be cooled, and the cooled annular forging is obtained.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a forging equipment of annular forging which characterized in that: including first conveyer belt (1) and second conveyer belt (2) that are used for conveying the ingot, first conveyer belt (1) with the top of second conveyer belt (2) is equipped with mounting bracket (3), be equipped with on mounting bracket (3) be used for with the ingot is followed first conveyer belt (1) is carried extremely first transport structure (4) on second conveyer belt (2), be equipped with on mounting bracket (3) and be used for heating structure (5) of ingot, one side of mounting bracket (3) is equipped with forging machine (6) and oil quenching pond (7), just still be equipped with on mounting bracket (3) be used for with the ingot is carried extremely second transport structure (8) of forging machine (6) or oil quenching pond (7).

2. The forging apparatus of an annular forging of claim 1, wherein: first transport structure (4) are including setting up first straight line module (41) on mounting bracket (3) and being located first conveyer belt (1) and second conveyer belt (2) top, be equipped with first cylinder (42) on the slider of first straight line module (41), be connected with on the telescopic link of first cylinder (42) and be used for snatching first piece (43) of grabbing of metal ingot.

3. The forging apparatus of annular forging of claim 2, wherein: first grabbing piece (43) include with installed part (431) that the telescopic link of first cylinder (42) is connected, the tip of installed part (431) is equipped with articulated head (432), articulated on articulated head (432) have card hand (433), be equipped with on installed part (431) and be used for the drive card hand (433) rotate in order to press from both sides the card hand driving piece of getting the metal ingot.

4. The forging apparatus of an annular forging of claim 1, wherein: the heating structure (5) comprises a second cylinder (51) which is arranged on the mounting rack (3) and positioned above the second conveyor belt (2), and an electromagnetic heating structure (52) used for heating metal ingots is arranged on an expansion link of the second cylinder (51).

5. The forging apparatus of an annular forging of claim 4, wherein: the electromagnetic heating structure (52) comprises an electric power control box (522) connected to the telescopic rod of the second air cylinder (51), and an electromagnetic heating coil (523) capable of being sleeved on a metal ingot is connected to the electric power control box (522).

6. The forging apparatus of an annular forging of claim 5, wherein: and a metal ingot placing seat (9) is arranged on the second conveyor belt (2), and a coil groove (91) for the electromagnetic heating coil (523) to extend into is formed in the metal ingot placing seat (9).

7. The forging apparatus of an annular forging of claim 2, wherein: the second conveying structure (8) comprises a second linear module (81) arranged on the mounting frame (3), a motor (84) is arranged on a sliding block on the second linear module (81), a third air cylinder (82) is further connected to the sliding block on the second linear module (81) in a rotating mode, the motor (84) is connected with the third air cylinder (82), and the motor (84) can drive the third air cylinder (82) to rotate; and a telescopic rod of the third air cylinder (82) is connected with a second grabbing piece (86).

8. The forging apparatus of an annular forging of claim 1, wherein: forging machine (6) include frame (61), the top of frame (61) is connected with fourth cylinder (62), just be connected with punching press head (63) on the telescopic link of fourth cylinder (62), just be located on frame (61) be equipped with punching press seat (64) on the position of punching press head (63) below, offer on punching press seat (64) and be used for placing blind hole (641) of metal spindle, just punching press seat (64) are located be fixed with through-hole post (642) on the diapire in blind hole (641).

9. The forging apparatus of an annular forging of claim 8, wherein: and a fifth cylinder (65) is arranged in the base (61) and below the stamping seat (64), and a through hole for the telescopic rod of the fifth cylinder (65) to penetrate out is formed in the stamping seat (64) and on the bottom wall of the blind hole (641).

10. A forging process of an annular forging piece is based on forging equipment of the annular forging piece as claimed in any one of claims 1 to 9, and is characterized in that: the method comprises the following steps:

conveying the metal ingots from the first conveyor belt (1) to the second conveyor belt (2) through a first conveying structure (4);

heating the metal ingots on the second conveyor belt (2) to 1100-1200 ℃ by a heating structure (5), and then conveying the metal ingots heated to 1100-1200 ℃ to a forging machine (6) by a second conveying structure (8);

forging the metal ingot into an annular forging by a forging machine (6), and then air-cooling the annular forging to 350-400 ℃;

conveying the annular forged piece to a second conveyor belt (2) through a second conveying structure, normalizing the annular forged piece by using a heating structure (5), keeping the normalizing temperature of the annular forged piece at 800-900 ℃ for not less than 20h, and then air-cooling the annular forged piece to 200-300 ℃;

and (3) placing the annular forging which is air-cooled to 200-300 ℃ into an oil quenching pool (7) through a second conveying structure (8) for cooling to obtain the cooled annular forging.