CN112045132A

CN112045132A - Die with shaft sleeve forging and correction function and correction process

Info

Publication number: CN112045132A
Application number: CN202010531445.8A
Authority: CN
Inventors: 刘步蟾
Original assignee: Wuxi Longdi Precised Forgings Co ltd
Current assignee: Wuxi Longdi Precised Forgings Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-12-08
Anticipated expiration: 2040-06-11
Also published as: CN112045132B

Abstract

The invention discloses a die with a correcting function and a correcting process for a shaft sleeve forging, and relates to the technical field of shaft sleeve forging dies, in particular to a base station, a circular table, a core roller supporting mechanism, a core roller correcting device and a main die clamping device. The die with the correction function and the correction process for the shaft sleeve forge piece correct the uprightness of the core roller through the core roller correction device and have the effect of stably clamping the core roller.

Description

Die with shaft sleeve forging and correction function and correction process

Technical Field

The invention relates to the technical field of shaft sleeve forging dies, in particular to a die with a correcting function for a shaft sleeve forging and a correcting process.

Background

The shaft sleeve is an important part in modern mechanical equipment, the main function of the shaft sleeve is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body, the bearing is mostly processed by adopting a forging mode and is also manufactured by using an injection molding method, but in order to ensure the strength and the hardness of a bearing product, the forged bearing part has a wider application range.

The use of the die is omitted in the forging process, the die can be rapidly molded, the die is adopted for forging and processing, and the forging die has the advantages of high precision, rapid production and the like.

The shaft sleeve forging die structure disclosed in the Chinese patent application publication No. CN203401037U is characterized in that although a forging with a shape close to that of a product is machined through the die structure, the cutting allowance of subsequent machining is small, materials are saved, the machining cost is low, a certain rolling space is reserved for the forging machining by the die, and the quality and the performance of the product are guaranteed, the shaft sleeve forging die structure does not have a correction function on a core roller.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a die with a correction function and a correction process for a sleeve forging, and solves the problems in the background art.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a die for shaft sleeve forging has correction function, includes base station, round platform, core roller supporting mechanism, core roller orthotic devices and master die clamping device, the annular has been seted up to the inside of base station, and one side cell wall of annular is fixed with the latch, the inboard center of annular is fixed with the round platform, install core roller supporting mechanism between base station and the round platform, core roller supporting mechanism comprises steering control dish, tray, bracing piece, gear and core roller orthotic devices, the last surface center of round platform installs the mill dial, and the last surface edge of mill dial is fixed with dull polish circle, the wind groove has evenly been seted up to the lateral wall of round platform, and the last surface edge equidistance of round platform is provided with master die clamping device, master die clamping device comprises master die carousel, tray, well core rod, sleeve, installation piece, elasticity vaulting pole and flexible glue cover.

Optionally, the top of turning to the control panel is rotated and is connected with the tray, and turns to the vertical bracing piece that is fixed with in the middle part of the below of control panel, the bottom mounting of bracing piece has the gear, and the insection meshes mutually between gear and the latch.

Optionally, the upper surface edge of tray is cyclic annular and evenly is provided with core roller orthotic devices, and core roller orthotic devices comprises pneumatic cylinder, a fixed section of thick bamboo, well even activity cluster pipe and top sleeve, the end connection of pneumatic cylinder has a fixed section of thick bamboo, and the inside of a fixed section of thick bamboo runs through and has well even activity cluster pipe, the top sleeve has been cup jointed to the top outside of well even activity cluster pipe.

Optionally, the periphery of the hydraulic cylinder is equidistantly provided with support columns, the bottom ends of the support columns are fixed on the upper surface of the circular truncated cone, the top ends of the support columns are welded with support plates, and the outer wall of the bottom of the fixed cylinder is welded with the support plates.

Optionally, the fixed cylinder, the middle-connected movable string pipe and the top sleeve are mutually matched to form a sealed telescopic rod type structure, and the gas engine is installed in the fixed cylinder, the middle-connected movable string pipe and the top sleeve in a whole penetrating mode.

Optionally, the outer wall of the middle connecting movable string pipe is provided with a frosted wall layer, and fine hairbrushes are uniformly fixed on the outer wall of the frosted wall layer.

Optionally, the fixed cylinder and the top sleeve are both sleeved with rubber sleeves, air bags are uniformly fixed on the outer walls of the rubber sleeves, and the air bags are connected with the air outlet of the air conditioner through a pipeline respectively.

Optionally, the main die turntable is embedded in the edge of the upper surface of the circular truncated cone at equal intervals, a tray mold disc is fixed on the upper surface of the main die turntable, a central rod vertically penetrates through the center of the tray mold disc, a sleeve is sleeved on the outer side of the central rod, mounting blocks are arranged on the outer wall of the sleeve at equal intervals, elastic support rods are mounted at the outer ends of the mounting blocks, and soft rubber sleeves are sleeved at the end portions of the elastic support rods.

Based on the structure, the invention also discloses a correction process of the die with the correction function for the shaft sleeve forge piece, and the correction process comprises the following specific process steps:

(1) fixing a main mold:

firstly, moving the main mold to a main mold clamping device, manually compressing the elastic support rod to enable the elastic support rod to contract, and sleeving the main mold on the outer side of the contracted elastic support rod;

secondly, the elastic support rod is loosened and naturally expanded, and the soft rubber sleeve at the end part compresses the inner wall of the main mold;

(2) fixing the core roller:

firstly, forming a limiting hole at the bottom end of a core roller, and moving the core roller to a core roller supporting mechanism;

secondly, starting the hydraulic cylinder, extending the whole length of the fixed cylinder, the middle connecting movable string pipe and the top sleeve, and directly inserting the fixed cylinder, the middle connecting movable string pipe and the top sleeve into a limiting hole at the bottom end of the core roller;

(3) core roller straightening:

firstly, the integral length of the fixed cylinder, the middle connecting movable string pipe and the top sleeve is adjusted to stabilize the center of gravity of the core roller;

secondly, starting a working switch of the air machine, inflating the air machine into the air bag through the pipeline until the air bag expands to abut against the inner wall of the limiting hole of the core roller, correcting the core roller to be in an upright state, and enabling the core roller and the core roller correcting device to be in close contact;

(4) processing a bearing forging:

firstly, moving the position of the core roller supporting mechanism along the ring groove by means of the meshing connection between the clamping teeth and the gear until the core roller supporting mechanism is moved to a proper position;

sleeving a bearing workpiece to the outer side of the main mold, starting a rotating motor in a steering control disc on the core roller supporting mechanism, and rotating the core roller until the core roller is tightly attached to the workpiece;

starting a motor connected with the main die turntable, rotating the main die turntable to drive the bearing workpiece to rotate, and performing high friction with the core roller to start forging;

starting a motor connected with the grinding turntable, rotating the grinding turntable, enabling the rotation direction of the grinding turntable to be opposite to that of the main mold turntable, enabling two end surfaces of the bearing workpiece to be in direct contact with the grinding ring, and grinding by the grinding ring.

The invention provides a die with a correction function and a correction process for a shaft sleeve forging, and the die and the correction process have the following beneficial effects:

1. this axle sleeve forging has mould and correction technology of correction function, through the upright degree of core roller orthotic devices correction core roller, and have the effect of stabilizing the clamping to the core roller, the pneumatic cylinder can control fixed section of thick bamboo through the hydraulic pressure principle, well even activity cluster pipe and the whole length of top sleeve change, and then can realize the correction purpose of core roller orthotic devices to the core roller better, the gasbag can be aerifyd and expand by the mechanism of qi, the expanded gasbag can compress tightly the spacing downthehole wall of core roller immediately, aerify the in-process that expands at the gasbag, under self action of gravity, the core roller is corrected upright state very easily, aerify the completion back at the gasbag, the expanded gasbag also produces the external supporting effort to the core roller, and then make the core roller stably fixed.

2. This axle sleeve forging has the mould and the correction technology of correction function, through the built-in motor of steering control dish, can control the tray rotation to the position at dress core roller place on the adjustment tray, the meshing structural design between gear and the latch makes core roller supporting mechanism can be in the annular steady shift position, and can not rock the slip, is favorable to forging processing very much.

3. This axle sleeve forging has the mould and the correction technology of correction function, through the dull polish wall layer in guaranteeing the connection compactness between even activity cluster pipe and the fixed cylinder, the top sleeve for the gas tightness is good between the three, thin brush then is used for increasing the fixed cylinder, the friction between even activity cluster pipe and the whole and the spacing downthehole wall of core roller between top sleeve, and then makes the core roller be fixed at fixed cylinder, even activity cluster pipe and the whole outside of top sleeve by steady clamping.

4. This axle sleeve forging has the mould and the correction technology of correction function, even has the motor through the mill flour carousel, can drive the mill flour carousel rotatory, so the dull polish circle on the mill flour carousel also can rotate, utilizes the contact of dull polish circle and work piece terminal surface, can produce better effect of polishing to the work piece, helps improving the product quality of work piece, and the wind channel of round platform outer wall is used for the scattered wind heat dissipation, helps the cooling of forging in-process.

5. The die and the correction process have the correction function, the main die is clamped and fixed through the main die clamping device, the main die turntable can drive the main die to rotate so as to complete the processing of the forge piece, the sleeve, the mounting block, the elastic supporting rod and the soft rubber sleeve outside the central rod are used for fixing the main die, namely the main die is pressed and fixed by utilizing the external elasticity of the elastic supporting rod, so that the fixing process of the main die is simple and effective and is convenient to implement.

Drawings

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

FIG. 2 is a schematic view showing the structure of a core roll supporting mechanism according to the present invention;

FIG. 3 is a schematic view showing the overall structure of the core roller correcting device according to the present invention;

FIG. 4 is a partial schematic view of a core roll corrective device of the present invention;

FIG. 5 is a schematic view of a circular truncated cone table top structure according to the present invention;

fig. 6 is a schematic structural view of the clamping device for the main mold of the invention.

In the figure: 1. a base station; 2. a ring groove; 3. clamping teeth; 4. a circular truncated cone; 5. a core roll support mechanism; 6. a steering control panel; 7. a tray; 8. a support bar; 9. a gear; 10. a core roll correcting device; 11. a hydraulic cylinder; 12. supporting a column; 13. a support disc; 14. a fixed cylinder; 15. the movable string pipes are connected in the middle; 16. a frosted wall layer; 17. a fine brush; 18. a top sleeve; 19. a gas engine; 20. a rubber sleeve; 21. an air bag; 22. grinding a rotary table; 23. a frosted ring; 24. an air duct; 25. a main die clamping device; 26. a main mold turntable; 27. a pallet tray; 28. a center pole; 29. a sleeve; 30. mounting blocks; 31. an elastic stay bar; 32. and (4) soft rubber sleeves.

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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, the present invention provides a technical solution: a shaft sleeve forging die with a correcting function comprises a base station 1, a circular table 4, a core roller supporting mechanism 5, a core roller correcting device 10 and a main die clamping device 25, wherein a circular groove 2 is formed in the base station 1, a clamping tooth 3 is fixed on one side groove wall of the circular groove 2, the circular table 4 is fixed at the center of the inner side of the circular groove 2, the core roller supporting mechanism 5 is installed between the base station 1 and the circular table 4, the core roller supporting mechanism 5 comprises a steering control disc 6, a tray 7, a supporting rod 8, a gear 9 and the core roller correcting device 10, the tray 7 is rotatably connected above the steering control disc 6, the supporting rod 8 is vertically fixed in the middle of the lower portion of the steering control disc 6, the gear 9 is fixed at the bottom end of the supporting rod 8, the gear 9 is meshed with the clamping tooth 3, a motor is arranged in the steering control disc 6, the tray 7 can be controlled to rotate so as to adjust the position of the core, the meshing structure design between the gear 9 and the latch 3 ensures that the core roller supporting mechanism 5 can move stably in the ring groove 2 without shaking and sliding, thereby being very beneficial to forging processing;

the edge of the upper surface of the tray 7 is annularly and uniformly provided with the core roller correcting device 10, the core roller correcting device 10 comprises a hydraulic cylinder 11, a fixed cylinder 14, a middle-connected movable string pipe 15 and a top sleeve 18, the end part of the hydraulic cylinder 11 is connected with the fixed cylinder 14, the middle-connected movable string pipe 15 penetrates through the fixed cylinder 14, the top sleeve 18 is sleeved outside the top end of the middle-connected movable string pipe 15, the core roller correcting device 10 is used for correcting the vertical degree of the core roller and has the effect of stably clamping the core roller, the periphery of the hydraulic cylinder 11 is provided with the support columns 12 at equal intervals, the bottom ends of the support columns 12 are fixed on the upper surface of the circular table 4, the top ends of the support columns 12 are welded with the support plate 13, the outer wall of the bottom of the fixed cylinder 14 is welded with the support plate 13, the support columns 12 and the support plate 13 are used for reinforcing the bottom of the fixed cylinder 14, so that the fixed cylinder 14, The top sleeves 18 are stable in structure and not prone to toppling, the fixed cylinder 14, the middle-connected movable string pipe 15 and the top sleeves 18 are matched with one another to form a sealed telescopic rod type structure, the whole insides of the fixed cylinder 14, the middle-connected movable string pipe 15 and the top sleeves 18 are provided with the air engine 19 in a penetrating mode, the hydraulic cylinder 11 can control the whole lengths of the fixed cylinder 14, the middle-connected movable string pipe 15 and the top sleeves 18 to change through a hydraulic principle, and therefore the core roller correcting purpose of the core roller correcting device 10 can be achieved better;

the outer wall of the middle-connected movable string pipe 15 is provided with a frosted wall layer 16, fine hairbrushes 17 are uniformly fixed on the outer wall of the frosted wall layer 16, the frosted wall layer 16 is used for ensuring the connection tightness between the middle-connected movable string pipe 15 and the fixed cylinder 14 and between the middle-connected movable string pipe 16 and the top sleeve 18, so that the air tightness among the middle-connected movable string pipe 15, the fixed cylinder 14 and the top sleeve 18 is good, the fine hairbrushes 17 are used for increasing the friction force between the whole body of the fixed cylinder 14, the middle-connected movable string pipe 15 and the top sleeve 18 and the inner wall of the core roller limiting hole, so that the core roller is stably clamped and fixed on the whole body of the fixed cylinder 14, the middle-connected movable string pipe 15 and the top sleeve 18, rubber sleeves 20 are sleeved on the outside of the fixed cylinder 14 and the top sleeve 18, air bags 21 are uniformly fixed on the outer wall of the rubber sleeves 20, the air bags 21, the air bag 21 can be inflated by the air machine 19 to expand, the expanded air bag 21 can press the inner wall of the limiting hole of the core roller immediately, the core roller is very easy to be corrected to be in an upright state under the action of self gravity in the inflating and expanding process of the air bag 21, and after the air bag 21 is inflated, the expanded air bag 21 also generates an external supporting acting force on the core roller, so that the core roller is stably fixed;

the grinding surface turntable 22 is installed at the center of the upper surface of the circular truncated cone 4, the edge of the upper surface of the grinding surface turntable 22 is fixed with the grinding ring 23, the grinding surface turntable 22 is connected with a motor and can rotate, so that the grinding ring 23 on the grinding surface turntable can also rotate, a better grinding effect can be generated on a workpiece by utilizing the contact of the grinding ring 23 and the end surface of the workpiece, the product quality of the workpiece is favorably improved, air grooves 24 are uniformly formed in the side wall of the circular truncated cone 4, main mold clamping devices 25 are arranged on the edge of the upper surface of the circular truncated cone 4 at equal intervals, and the air grooves 24 are used for dissipating air and dissipating heat and helping to cool a;

the main die clamping device 25 comprises a main die turntable 26, a die supporting disc 27, a central rod 28, a sleeve 29, an installation block 30, an elastic supporting rod 31 and a soft rubber sleeve 32, wherein the main die turntable 26 is embedded in the edge position of the upper surface of the circular truncated cone 4 at equal intervals, the die supporting disc 27 is fixed on the upper surface of the main die turntable 26, the central rod 28 vertically penetrates through the center of the die supporting disc 27, the sleeve 29 is sleeved on the outer side of the central rod 28, the installation blocks 30 are arranged on the outer wall of the sleeve 29 at equal intervals, the elastic supporting rod 31 is installed at the outer end of each installation block 30, the soft rubber sleeve 32 is sleeved on the end portion of each elastic supporting rod 31, the main die clamping device 25 is used for fixing the main die, the main die turntable 26 can drive the main die to rotate to complete forging processing, the sleeve 29, the installation blocks 30, the elastic supporting rods 31 and the soft rubber sleeve 32 outside the central rod 28 are used for fixing the main die, namely, the external elasticity, the fixing process of the main mold is simple and effective, and the implementation is convenient.

In conclusion, the invention also discloses a correction process of the die with the correction function for the shaft sleeve forge piece, and the correction process comprises the following specific process steps:

(1) fixing a main mold:

firstly, moving the main mold to the main mold clamping device 25, manually compressing the elastic support rod 31 to contract the elastic support rod 31, and sleeving the main mold on the outer side of the contracted elastic support rod 31;

secondly, the elastic stay bar 31 is loosened, the elastic stay bar 31 is naturally expanded, and the soft rubber sleeve 32 at the end part compresses the inner wall of the main mold;

(2) fixing the core roller:

firstly, forming a limiting hole at the bottom end of the core roller, and moving the core roller to the position of a core roller supporting mechanism 5;

secondly, starting the hydraulic cylinder 11, extending the whole length of the fixed cylinder 14, the middle connecting movable string pipe 15 and the top sleeve 18, and directly inserting the fixed cylinder, the middle connecting movable string pipe and the top sleeve into a limiting hole at the bottom end of the core roller;

(3) core roller straightening:

firstly, the integral length of the fixed cylinder 14, the middle connecting movable string pipe 15 and the top sleeve 18 is adjusted to stabilize the center of gravity of the core roller;

secondly, starting a working switch of the air machine 19, inflating the air machine 19 into the air bag 21 through a pipeline until the air bag 21 expands to abut against the inner wall of the limiting hole of the core roller, correcting the core roller to be in an upright state, and enabling the core roller to be tightly contacted with the core roller correcting device 10;

(4) processing a bearing forging:

firstly, by means of the meshing connection between the latch 3 and the gear 9, the position of the core roller supporting mechanism 5 is moved along the ring groove 2, and the core roller supporting mechanism 5 is moved to a proper position;

secondly, sleeving a bearing workpiece to the outer side of the main mold, starting a rotating motor in a steering control disc 6 on the core roller supporting mechanism 5, and rotating the core roller to be tightly attached to the workpiece;

starting a motor connected with the main mold turntable 26, rotating the main mold turntable 26 to drive the bearing workpiece to rotate, and starting forging processing by high friction between the bearing workpiece and the core roller;

starting a motor connected with the grinding surface turntable 22, rotating the grinding surface turntable 22, enabling the rotation direction of the grinding surface turntable 22 to be opposite to the rotation direction of the main mold turntable 26, enabling two end surfaces of the bearing workpiece to be in direct contact with the grinding ring 23, and grinding by the grinding ring 23.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a die for axle sleeve forging has correction function, includes base station (1), round platform (4), core roller supporting mechanism (5), core roller orthotic devices (10) and master die clamping device (25), its characterized in that: annular (2) have been seted up to the inside of base station (1), and one side cell wall of annular (2) is fixed with latch (3), the inboard center of annular (2) is fixed with round platform (4), install core roller supporting mechanism (5) between base station (1) and round platform (4), core roller supporting mechanism (5) comprise steering control dish (6), tray (7), bracing piece (8), gear (9) and core roller orthotic devices (10), last surface center of round platform (4) installs wear surface carousel (22), and the last surface edge of wear surface carousel (22) is fixed with dull polish circle (23), wind channel equidistance 24 has evenly been seted up to the lateral wall of round platform (4), and the last surface edge of round platform (4) is provided with master die clamping device (25), master die clamping device (25) are by master die carousel (26), The support die comprises a support die disc (27), a central rod (28), a sleeve (29), a mounting block (30), an elastic support rod (31) and a soft rubber sleeve (32).

2. The die with the correction function for the shaft sleeve forging piece as claimed in claim 1, wherein the die comprises: the steering control panel is characterized in that a tray (7) is rotatably connected to the upper portion of the steering control panel (6), a supporting rod (8) is vertically fixed to the middle of the lower portion of the steering control panel (6), a gear (9) is fixed to the bottom end of the supporting rod (8), and the gear (9) is meshed with the clamping teeth (3) in a tooth pattern mode.

3. The die with the correction function for the shaft sleeve forging piece as claimed in claim 1, wherein the die comprises: the upper surface edge of tray (7) is cyclic annular and evenly is provided with core roller orthotic devices (10), and core roller orthotic devices (10) comprise pneumatic cylinder (11), solid fixed cylinder (14), well even activity cluster pipe (15) and top sleeve (18), the end connection of pneumatic cylinder (11) has solid fixed cylinder (14), and the inside of solid fixed cylinder (14) runs through well even activity cluster pipe (15), top sleeve (18) have been cup jointed to the top outside of well even activity cluster pipe (15).

4. The die with the correction function for the shaft sleeve forging piece as claimed in claim 3, wherein the die comprises: the periphery of the hydraulic cylinder (11) is equidistantly provided with support columns (12), the bottom ends of the support columns (12) are fixed on the upper surface of the circular truncated cone (4), supporting discs (13) are welded at the top ends of the support columns (12), and the outer wall of the bottom of the fixed cylinder (14) is welded with the supporting discs (13).

5. The die with the correction function for the shaft sleeve forging piece as claimed in claim 3, wherein the die comprises: the fixed cylinder (14), the middle-connected movable string pipe (15) and the top sleeve (18) are mutually matched to form a sealed telescopic rod type structure, and the whole inside of the fixed cylinder (14), the middle-connected movable string pipe (15) and the top sleeve (18) is provided with an air engine (19) in a penetrating mode.

6. The die with the correction function for the shaft sleeve forging piece as claimed in claim 3, wherein the die comprises: the outer wall of the middle connecting movable string pipe (15) is provided with a frosted wall layer (16), and fine hairbrushes (17) are uniformly fixed on the outer wall of the frosted wall layer (16).

7. The die with the correction function for the shaft sleeve forging piece as claimed in claim 5, wherein the die comprises: the outside of fixed cylinder (14) and top sleeve (18) all is equipped with rubber sleeve (20) by the cover, and the outer wall of rubber sleeve (20) evenly is fixed with gasbag (21), gasbag (21) are connected with the air outlet of mechanism of qi (19) through the pipeline respectively.

8. The die with the correction function for the shaft sleeve forging piece as claimed in claim 1, wherein the die comprises: the upper surface border position in round platform (4) is installed in embedding of fundamental mode carousel (26) equidistance, and the upper surface of fundamental mode carousel (26) is fixed with tray mould dish (27), the vertical well core rod (28) that runs through in center of tray mould dish (27), and the outside cover of well core rod (28) is equipped with sleeve (29), the outer wall equidistance of sleeve (29) is provided with installation piece (30), and installs the outer end of piece (30) and all install elastic stay bar (31), the tip of elastic stay bar (31) all is equipped with flexible glue cover (32).

9. The utility model provides a correction technology that axle sleeve forging has correction function mould which characterized in that: the straightening process comprises a die with a straightening function for the shaft sleeve forge piece according to any one of claims 1 to 8, and the straightening process comprises the following specific process steps:

(1) fixing a main mold:

firstly, moving the main mold to a main mold clamping device (25), manually compressing an elastic support rod (31) to contract the elastic support rod (31), and sleeving the main mold on the outer side of the contracted elastic support rod (31);

secondly, the elastic support rod (31) is loosened, the elastic support rod (31) is naturally stretched, and a soft rubber sleeve (32) at the end part compresses the inner wall of the main mold;

(2) fixing the core roller:

firstly, forming a limiting hole at the bottom end of the core roller, and moving the core roller to the position of a core roller supporting mechanism (5);

starting a hydraulic cylinder (11), extending the whole length of a fixed cylinder (14), a middle-connected movable string pipe (15) and a top sleeve (18), and directly inserting the fixed cylinder, the middle-connected movable string pipe and the top sleeve into a limiting hole at the bottom end of a core roller;

(3) core roller straightening:

firstly, the integral length of a fixed cylinder (14), a middle connecting movable string pipe (15) and a top sleeve (18) is adjusted to stabilize the center of gravity of the core roller;

secondly, starting a working switch of the air machine (19), inflating the air machine (19) into the air bag (21) through a pipeline until the air bag (21) expands to abut against the inner wall of the limiting hole of the core roller, correcting the core roller to be in an upright state, and enabling the core roller to be tightly contacted with the core roller correcting device (10);

(4) processing a bearing forging:

firstly, by means of the meshing connection between the clamping teeth (3) and the gear (9), the position of the core roller supporting mechanism (5) is moved along the ring groove (2) until the core roller supporting mechanism (5) is moved to a proper position;

secondly, sleeving a bearing workpiece to the outer side of the main mold, starting a rotating motor in a steering control disc (6) on the core roller supporting mechanism (5), and rotating the core roller to be tightly attached to the workpiece;

starting a motor connected with the main die turntable (26), rotating the main die turntable (26) to drive the bearing workpiece to rotate, and starting forging processing by high friction between the bearing workpiece and the core roller;

starting a motor connected with the grinding turntable (22), rotating the grinding turntable (22), enabling the rotation direction of the grinding turntable (22) to be opposite to the rotation direction of the main mold turntable (26), enabling two end surfaces of the bearing workpiece to be in direct contact with the grinding ring (23), and grinding by the grinding ring (23).