CN114289589A

CN114289589A - Method for machining work with reduced weight and spinning device

Info

Publication number: CN114289589A
Application number: CN202111680020.4A
Authority: CN
Inventors: 丁容; 熊东东; 祝邦盛; 焦贝贝; 刘杰
Original assignee: Zhejiang Jingu Co Ltd
Current assignee: Zhejiang Jingu Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-08
Anticipated expiration: 2041-12-31
Also published as: WO2023125734A1; CN114289589B

Abstract

The invention provides a light-weight processing method and a spinning device for a workpiece, wherein the light-weight processing method for the workpiece comprises the steps of heating a blank in a heating furnace to a first preset temperature T1, and keeping the temperature for a first preset time T1; taking out the heated blank and placing the heated blank at a hot spinning station of a hot spinning machine to perform spinning forming operation on the blank so as to form the basic shape of the prefabricated part; after the spinning forming operation is completed, the stripper of the hot spinning machine conveys the blank subjected to the spinning forming operation to the cooling area to be cooled to a second preset temperature T2. The invention solves the problems that the wheel in the prior art has larger weight and increases the energy consumption of the vehicle because the thicknesses of the spoke and the rim are equal.

Description

Method for machining work with reduced weight and spinning device

Technical Field

The invention relates to the technical field of machining and manufacturing of wheels, in particular to a light-weight machining method and a spinning device for a workpiece.

Background

In the prior art, the wheel comprises a rim and a spoke, however, in the process of processing the conventional rim and spoke, in order to ensure that the spoke and the rim have enough structural strength, the thickness of the conventional spoke and rim is thicker, so that the weight of the wheel formed after the spoke and rim are welded is larger, and the energy consumption of the vehicle is increased.

Disclosure of Invention

The invention mainly aims to provide a light-weight machining method and a spinning device for a workpiece, and aims to solve the problems that in the prior art, the wheel is heavy due to the fact that the thicknesses of a spoke and a rim are both thick, and the energy consumption of a vehicle is increased.

In order to achieve the above object, according to one aspect of the present invention, there is provided a method of processing a work with reduced weight, comprising heating a blank in a heating furnace to a first preset temperature T1 and holding for a first preset time period T1; taking out the heated blank and placing the heated blank at a hot spinning station of a hot spinning machine to perform spinning forming operation on the blank so as to form the basic shape of the prefabricated part; after the spinning forming operation is completed, the support structure of the hot spinning machine conveys the blank after the spinning forming operation to the cooling area to be cooled to a second preset temperature T2.

Further, the first preset temperature T1 satisfies: t1 is more than or equal to 900 ℃ and less than or equal to 930 ℃.

Further, the first preset time period t1 satisfies: t1 is more than or equal to 3min and less than or equal to 10 min.

Further, in the spinning forming operation process, the temperature of the blank in the hot spinning machine is kept at a third preset temperature T3, wherein the temperature is more than or equal to 800 ℃ and less than or equal to 930 ℃ and more than or equal to T3.

Furthermore, in the spinning forming operation process, the blank is limited at the hot spinning station by the pressing end of the hot spinning machine, and the spinning wheel of the hot spinning machine is abutted against the blank and performs spinning forming operation on the blank.

Further, after the spinning forming operation is completed, the blank after the spinning forming operation is pushed into the material receiving channel of the hot spinning machine by the supporting structure, and the blank collides with the buffer plate in the material receiving channel, so that the moving speed of the blank is reduced.

Further, the decelerated blank enters a cooling area in the material receiving channel to be cooled for a second preset time t2 under the action of a conveying belt in the material receiving channel, wherein t2 is more than or equal to 10s and less than or equal to 12 s.

Further, the second preset temperature T2 satisfies: t2 is more than or equal to 0 and less than or equal to 230 ℃.

Further, when the blank enters the cooling area and the cooling operation is not started, the temperature of the blank is a fourth preset temperature T4, wherein the temperature is more than or equal to 750 ℃ and less than or equal to T4 and less than or equal to 930 ℃.

Further, before the blank is heated in the heating furnace, the blank is placed at a cold spinning station of a cold spinning machine, and cold spinning forming operation is performed at the cold spinning station to thin the blank.

According to another aspect of the present invention, there is provided a spinning apparatus including a base, a first fixing bracket, a supporting structure, a second fixing bracket, and a spinning wheel, wherein the first fixing bracket is provided on the base; the supporting structure is movably arranged on the side wall surface of the first fixed support, and the end surface of the supporting structure, which is far away from one side of the first fixed support, is provided with a supporting surface for supporting the blank; the second fixing support is arranged on the base and is opposite to the first fixing support; the rotary wheel is rotatably arranged on the side wall surface of one side, facing the first fixed support, of the second fixed support and is positioned above the supporting structure.

Furthermore, the supporting structure comprises a stripper and a supporting male die, and the stripper is telescopically arranged on the side wall surface of the first fixing bracket; the supporting male die is rotatably arranged on the stripper and is provided with a supporting surface; the stripper is provided with a first working position which extends out along the side wall surface far away from the first fixed bracket so that the supporting surface of the supporting male die provides supporting force for the blank, and a first avoidance position which is retracted towards the direction close to the side wall surface of the first fixed bracket so as to remove the supporting effect of the supporting surface of the supporting male die on the blank.

Further, the spinning roller is movably provided in the axial direction thereof to spin at different positions in the axial direction of the blank.

Further, the spinning wheel is movably disposed in a radial direction thereof, the spinning wheel has a second working position in the radial direction thereof close to the blank and in contact with the blank, and the spinning wheel has an escape position in the radial direction thereof away from the blank to release the spinning work on the blank.

Further, the spinning device further comprises a third fixing support and a material pressing mechanism, wherein the third fixing support is arranged on the base, and the second fixing support is located between the first fixing support and the third fixing support; the swaging mechanism is arranged on the side wall surface of the third fixed support facing one side of the second fixed support and is provided with a driving shaft, an avoiding through hole is formed in the position, opposite to the supporting surface on the supporting structure, of the second fixed support, the driving shaft penetrates through the avoiding through hole and is arranged, and a swaging end head is arranged at the end part of the driving shaft.

Further, the driving shaft is telescopically arranged along the axial direction of the avoiding through hole.

Furthermore, the spinning device also comprises a material receiving structure, a buffer plate and a conveying belt, wherein the material receiving structure is arranged on the base and is provided with a material receiving channel, and a channel opening of the material receiving channel is arranged towards the support structure; the buffer plate is rotatably arranged in the material receiving channel; at least one part of the conveying belt is positioned in the material receiving channel and is movably arranged along the extending direction of the material receiving channel.

Further, the spinning device also comprises a cooling pipe, the cooling pipe is arranged on the channel wall of the material receiving channel to form a cooling area, and the cooling pipe is communicated with an external cooling source.

Furthermore, the spinning device also comprises a heating pipe, the heating pipe is arranged on the side wall surface of one side, facing the second fixing support, of the first fixing support and is arranged at an interval with the supporting structure, and a spray head of the heating pipe faces a blank on the supporting surface.

Furthermore, the first fixing support is provided with an accommodating cavity, the spinning device further comprises a heat supply gas cylinder, the heat supply gas cylinder is arranged in the accommodating cavity, and the heat supply gas cylinder is communicated with the heating pipe; the heating pipe is a plurality of, and a plurality of heating pipes are around the periphery side interval setting of bearing structure, and the shower nozzle of each heating pipe all faces the blank.

Further, the spinning device is a cold spinning machine.

Further, the spinning device is a hot spinning machine.

By applying the technical scheme provided by the invention, the light-weight processing method of the workpiece is provided, the light-weight processing method can be used for processing the rim and the spoke of the wheel, and the corresponding die can be replaced according to the different appearance structures of the rim and the spoke.

Specifically, the blank is heated in a heating furnace to a first preset temperature T1, the temperature is kept for a first preset time T1, the heated blank is taken out and placed at a hot spinning station of a hot spinning machine, and the blank is subjected to spinning forming operation to form the basic shape of a prefabricated part; after the spinning forming operation is completed, the blank after the spinning forming operation is conveyed to a cooling area by the supporting structure of the hot spinning machine to be cooled to a second preset temperature T2, so that the hot forming and hot spinning technologies are combined, the blank is ensured to have enough structural strength in the machining process, the purpose of thinning forming can be achieved, lightweight manufacturing of prefabricated parts is facilitated, the quality of the spoke and the rim of the wheel is ensured to be light, lightweight design of the wheel formed after welding of the spoke and the rim is ensured, and energy consumption of the vehicle is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic flow diagram of a method of lightweight machining of a workpiece according to an alternative embodiment of the invention;

FIG. 2 shows a schematic structural view of a hot-spinning machine according to an alternative embodiment of the present invention;

fig. 3 shows a schematic structural view of a cold spinning machine according to an alternative embodiment of the present invention.

Wherein the figures include the following reference numerals:

1. a blank; 10. a base; 20. a first fixed bracket; 30. a support structure; 31. a material returning device; 32. supporting the male die; 40. a second fixed bracket; 50. rotating the wheel; 60. a third fixed bracket; 70. a material pressing mechanism; 71. a drive shaft; 72. pressing end heads; 80. a material receiving structure; 81. a material receiving channel; 90. a buffer plate; 100. a conveyor belt; 200. a cooling tube; 300. heating a tube; 400. a heating gas cylinder.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a light-weight processing method of a workpiece and a spinning device, and aims to solve the problems that in the prior art, the weight of a wheel is larger and the energy consumption of a vehicle is increased due to the fact that the thicknesses of a spoke and a rim of the wheel are equal.

As shown in fig. 1, the method for processing the workpiece in a light weight mode comprises the steps of heating a blank in a heating furnace to a first preset temperature T1, and keeping the temperature for a first preset time T1; taking out the heated blank and placing the heated blank at a hot spinning station of a hot spinning machine to perform spinning forming operation on the blank so as to form the basic shape of the prefabricated part; after the spinning forming operation is completed, the support structure of the hot spinning machine conveys the blank after the spinning forming operation to the cooling area to be cooled to a second preset temperature T2.

The application provides a light-weight machining method for a workpiece, which can be used for machining a rim and a spoke of a wheel, and corresponding dies can be replaced according to the difference of the appearance structures of the rim and the spoke.

It should be noted that, in the present application, the microstructure of the blank material is changed by the hot forming technique, that is, the bainite is transformed into the martensite, while the atomic structure of the blank material is changed by the hot spinning technique, that is, the distance between atoms is effectively shortened.

Optionally, the first preset temperature T1 satisfies: t1 is more than or equal to 900 ℃ and less than or equal to 930 ℃.

Optionally, the first preset duration t1 satisfies: t1 is more than or equal to 3min and less than or equal to 10 min.

Optionally, during the spinning forming operation, the temperature of the blank in the hot spinning machine is maintained at a third preset temperature T3, wherein T3 is more than or equal to 800 ℃ and less than or equal to 930 ℃.

Furthermore, in the spinning forming operation process, the blank is limited at the hot spinning station by the pressing end of the hot spinning machine, and the spinning wheel of the hot spinning machine is abutted against the blank and performs spinning forming operation on the blank. Therefore, the limiting reliability of the pressing end to the blank is ensured.

Further, after the spinning forming operation is completed, the blank after the spinning forming operation is pushed into the material receiving channel of the hot spinning machine by the supporting structure, and the blank collides with the buffer plate in the material receiving channel, so that the moving speed of the blank is reduced. Like this, the buffer board plays the effect to blank deceleration, makes the blank stop even, and the rethread belt is carried.

Optionally, the decelerated blank enters a cooling area in the material receiving channel under the action of a conveying belt in the material receiving channel and is cooled for a second preset time period t2, wherein t2 is more than or equal to 10s and less than or equal to 12 s.

Optionally, the second preset temperature T2 satisfies: t2 is more than or equal to 0 and less than or equal to 230 ℃.

Optionally, the temperature of the blank is a fourth preset temperature T4 when entering the cooling zone and the cooling operation is not started, wherein the temperature is 750 ℃ to T4 ℃ to 930 ℃.

Of course, before the blank is heated in the heating furnace, the blank is placed at a cold spinning station of a cold spinning machine, and cold spinning forming work is performed at the cold spinning station to thin the blank. In this way, the cold spinning operation of the cold spinning machine enables the blank to be subjected to primary thinning before entering the heating furnace.

It should be noted that, this application does not need large-scale roller heating furnace, and ordinary heating furnace can, and need not to open heating device all the time. Only the heat preservation device is needed to be opened, and the heating device is needed to be opened, so that the energy consumption and the production investment are greatly reduced.

The following is illustrated by way of example of a cold spinning machine:

as shown in fig. 3, the spinning apparatus includes a base 10, a first fixing bracket 20, a supporting structure 30, a second fixing bracket 40, and a spinning wheel 50, wherein the first fixing bracket 20 is disposed on the base 10; the supporting structure 30 is movably arranged on the side wall surface of the first fixing bracket 20, and the end surface of the supporting structure 30 far away from the first fixing bracket 20 is provided with a supporting surface for supporting the blank 1; the second fixing bracket 40 is disposed on the base 10 and opposite to the first fixing bracket 20; the rotary wheel 50 is rotatably provided on a side wall surface of the second fixing bracket 40 facing the first fixing bracket 20 and above the support structure 30. This ensures that spinning wheel 50 can perform an effective spinning operation on blank 1 positioned on the end support surface of support structure 30.

As shown in fig. 3, the supporting structure 30 includes an ejector 31 and a supporting punch 32, the ejector 31 being telescopically disposed on a sidewall surface of the first fixing bracket 20; the supporting punch 32 is rotatably arranged on the stripper 31, and the supporting punch 32 has a supporting surface; wherein the stripper 31 has a first working position which projects along the side wall surface away from the first fixed bracket 20 so that the supporting surface of the supporting punch 32 provides the supporting force for the blank 1, and the stripper 31 has a first escape position which recedes in a direction close to the side wall surface of the first fixed bracket 20 so as to release the supporting action of the supporting surface of the supporting punch 32 on the blank 1.

Alternatively, the spinning roller 50 is movably provided in the axial direction thereof to spin the blank 1 at different positions in the axial direction.

Alternatively, the spinning wheel 50 is movably provided in the radial direction thereof, the spinning wheel 50 has a second working position close to the blank 1 in the radial direction thereof and in contact with the blank 1, and the spinning wheel 50 has an escape position away from the blank 1 in the radial direction thereof to release the spinning work on the blank 1.

It should be noted that, in the present application, the rotary wheel 50 is driven to move by a driving mechanism disposed on the second fixing support 40, the supporting convex die 32 is driven to rotate by a driving mechanism disposed on the first fixing support 20, the blank 1 is driven to rotate in the process of rotating the supporting convex die 32, the kinematic pair between the blank 1 and the rotary wheel 50 is a high pair, and the rotary wheel 50 is driven to rotate while the blank 1 rotates along with the supporting convex die 32.

As shown in fig. 3, the spinning apparatus further includes a third fixing bracket 60 and a swaging mechanism 70, wherein the third fixing bracket 60 is provided on the base 10, and the second fixing bracket 40 is located between the first fixing bracket 20 and the third fixing bracket 60; the swaging mechanism 70 is disposed on a side wall surface of the third fixing support 60 facing the second fixing support 40, the swaging mechanism 70 has a driving shaft 71, an avoiding through hole is disposed at a position of the second fixing support 40 opposite to the supporting surface of the supporting structure 30, the driving shaft 71 passes through the avoiding through hole, and a swaging end 72 is disposed at an end portion of the driving shaft 71. In this way, the pressing mechanism 70 is arranged to ensure that the pressing end 72 at the end of the driving shaft 71 of the pressing mechanism 70 can effectively limit the blank 1, so as to ensure that the subsequent spinning operation can be smoothly performed.

Optionally, the drive shaft 71 is telescopically arranged in the axial direction of the bypass hole. Thus, the driving shaft 71 can drive the pressing end 72 to be far away from and close to the end supporting surface of the supporting structure 30, so that the blank 1 is avoided and limited.

As shown in fig. 3, the spinning device further includes a material receiving structure 80, a buffer plate 90 and a conveyor belt 100, wherein the material receiving structure 80 is disposed on the base 10, the material receiving structure 80 has a material receiving channel 81, and a channel opening of the material receiving channel 81 is disposed toward the support structure 30; the buffer plate 90 is rotatably arranged in the material receiving channel 81; at least a part of the conveying belt 100 is located in the material receiving channel 81 and is movably arranged along the extending direction of the material receiving channel 81. Like this, drive blank 1 downstream and push away blank 1 in connecing material structure 80 when bearing structure 30, connect the effect of effective speed reduction to blank 1 of material structure 80's material receiving channel 81 interior buffer board 90 play, conveyer belt 100 further plays the transport effect to blank 1.

It should be noted that, in the present application, unlike the cold spinning machine, as shown in fig. 2, the hot spinning machine further includes a cooling pipe 200, the cooling pipe 200 is disposed on the channel wall of the material receiving channel 81 to form a cooling area, and the cooling pipe 200 is communicated with an external cooling source. In this way, it is ensured that the conveyor belt 100 drives the blank 1 to smoothly enter the cooling area, that is, the blank 1 can be directly cooled on the hot spinning machine without an additional cooling system.

As shown in fig. 2, the hot-spinning machine further includes a heating pipe 300, the heating pipe 300 is disposed on a side wall surface of the first fixing support 20 facing the second fixing support 40 and spaced apart from the supporting structure 30, and a nozzle of the heating pipe 300 faces the blank 1 on the supporting surface. Thus, during the hot spinning operation, the heating tube 300 injects hot gas to the blank 1 to keep the blank 1 warm, thereby ensuring that the blank 1 can reach the third preset temperature T3 required by the hot spinning technology.

As shown in fig. 2, the first fixing bracket 20 has a receiving cavity, and the hot-spinning machine further includes a plurality of heating tubes 300 and a heating gas cylinder 400, wherein the heating gas cylinder 400 is disposed in the receiving cavity, and the heating gas cylinder 400 is communicated with the heating tubes 300; a plurality of heating tubes 300 are spaced around the outer periphery of the support structure 30 with the spray head of each heating tube 300 facing the blank 1. In this way, while the compactness of the overall structure of the hot-spinning machine is ensured, the heating cylinder 400 is ensured to supply the heating pipe 300 with the heating gas in time.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for processing a workpiece with reduced weight, comprising:

heating the blank in a heating furnace to a first preset temperature T1, and preserving heat for a first preset time T1;

taking out the heated blank and placing the heated blank at a hot spinning station of a hot spinning machine to perform spinning forming operation on the blank so as to form the basic shape of a prefabricated part;

after the spinning forming operation is completed, the stripper of the hot spinning machine conveys the blank subjected to the spinning forming operation to a cooling area to be cooled to a second preset temperature T2.

2. The method of processing a workpiece for reducing weight according to claim 1, wherein the first preset temperature T1 satisfies: t1 is more than or equal to 900 ℃ and less than or equal to 930 ℃.

3. The method of processing a workpiece for reducing weight according to claim 1, wherein the first preset time period t1 satisfies: t1 is more than or equal to 3min and less than or equal to 10 min.

4. The method of claim 1, wherein the temperature of the blank in the hot spinning machine is maintained at a third predetermined temperature T3, wherein T3 is 800 ℃ to 930 ℃, during the spinning operation.

5. The method of processing a work with reduced weight according to claim 1, wherein a pressing end of the hot-spinning machine limits the blank at the hot-spinning station during the spinning work, and a spinning wheel of the hot-spinning machine abuts against the blank and performs the spinning work on the blank.

6. The method of processing a work piece with reduced weight according to claim 1, wherein the stripper pushes the blank after the spin forming operation into a receiving passage of the hot spinning machine after the spin forming operation is completed, and the blank collides with a cushion plate in the receiving passage to reduce a moving speed of the blank.

7. The method for processing the workpiece in the light weight manner according to claim 6, wherein the decelerated blank enters a cooling area in the material receiving channel under the action of a conveying belt in the material receiving channel and is cooled for a second preset time period t2, wherein t2 is not less than 10s and not more than 12 s.

8. The method of processing a workpiece for reducing weight according to claim 7, wherein the second preset temperature T2 satisfies: t2 is more than or equal to 0 and less than or equal to 230 ℃.

9. The method of claim 1, wherein the temperature of the blank is a fourth predetermined temperature T4, wherein T4 is 750 ℃ to 930 ℃, when the blank is introduced into the cooling zone and the cooling operation is not started.

10. The method of processing a work for weight reduction according to claim 1, wherein the blank is placed at a cold spinning station of a cold spinning machine and a cold spinning forming work is performed at the cold spinning station to thin the blank before the blank is placed in the heating furnace to be heated.

11. A spinning apparatus, comprising:

a base (10);

a first fixing bracket (20), the first fixing bracket (20) being provided on the base (10);

the supporting structure (30) is movably arranged on the side wall surface of the first fixing support (20), and the end surface of the supporting structure (30) far away from the first fixing support (20) is provided with a supporting surface for supporting the blank (1);

a second fixing bracket (40), the second fixing bracket (40) being disposed on the base (10) and being opposite to the first fixing bracket (20);

the rotary wheel (50) is rotatably arranged on the side wall surface of one side, facing the first fixing support (20), of the second fixing support (40), and the rotary wheel (50) is positioned above the supporting structure (30).

12. Spinning device according to claim 11, characterised in that said supporting structure (30) comprises:

the stripper (31) is arranged on the side wall surface of the first fixing bracket (20) in a telescopic manner;

a supporting punch (32), wherein the supporting punch (32) is rotatably arranged on the stripper (31), and the supporting punch (32) is provided with the supporting surface;

wherein the stripper (31) has a first working position which extends along a side wall surface away from the first fixed bracket (20) so that the supporting surface of the supporting punch (32) provides a supporting force for the blank (1), and the stripper (31) has a first escape position which retracts in a direction close to the side wall surface of the first fixed bracket (20) so as to release the supporting effect of the supporting surface of the supporting punch (32) on the blank (1).

13. Spinning device according to claim 11, characterised in that the spinning wheel (50) is movably arranged in its axial direction to spin at different positions in the axial direction of the blank (1).

14. Spinning device according to claim 11, characterised in that the spinning wheel (50) is movably arranged in its radial direction, the spinning wheel (50) having a second working position in its radial direction close to the blank (1) and in contact with the blank (1), and the spinning wheel (50) having an escape position in its radial direction away from the blank (1) for releasing the spinning operation of the blank (1).

15. The spinning apparatus according to claim 11, characterized in that the spinning apparatus further includes:

a third fixing bracket (60), the third fixing bracket (60) being disposed on the base (10), the second fixing bracket (40) being located between the first fixing bracket (20) and the third fixing bracket (60);

the swaging mechanism (70), swaging mechanism (70) sets up third fixed bolster (60) are towards on the lateral wall face of second fixed bolster (40) one side, swaging mechanism (70) have drive shaft (71), second fixed bolster (40) with the position department that the holding surface on bearing structure (30) is relative has seted up and has dodged the via hole, drive shaft (71) pass dodge the via hole setting, just the tip of drive shaft (71) has swage end (72).

16. The flow forming apparatus according to claim 15, wherein the drive shaft (71) is telescopically arranged in an axial direction of the bypass hole.

17. The spinning apparatus according to claim 11, characterized in that the spinning apparatus further includes:

the material receiving structure (80) is arranged on the base (10), the material receiving structure (80) is provided with a material receiving channel (81), and a channel opening of the material receiving channel (81) is arranged towards the support structure (30);

the buffer plate (90), the said buffer plate (90) is set up in the said receiving channel (81) rotatably;

the conveying belt (100), at least a part of the conveying belt (100) is located in the material receiving channel (81), and the conveying belt is movably arranged along the extending direction of the material receiving channel (81).

18. The flow forming device according to claim 17, further comprising:

the cooling pipe (200) is arranged on the channel wall of the material receiving channel (81) to form a cooling area, and the cooling pipe (200) is communicated with an external cooling source.

19. The spinning apparatus according to claim 11, characterized in that the spinning apparatus further includes:

the heating pipe (300) is arranged on the side wall surface of one side, facing the second fixing support (40), of the first fixing support (20) and is arranged at an interval with the supporting structure (30), and a spray head of the heating pipe (300) faces to the blank (1) on the supporting surface.

20. The flow forming apparatus according to claim 19, wherein the first fixing bracket (20) has a housing cavity, the flow forming apparatus further comprising:

the heating gas cylinder (400), the heating gas cylinder (400) is arranged in the accommodating cavity, and the heating gas cylinder (400) is communicated with the heating pipe (300);

the heating pipes (300) are arranged in a plurality, the heating pipes (300) are arranged around the outer periphery of the supporting structure (30) at intervals, and the spray heads of the heating pipes (300) face the blank (1).

21. The spinning apparatus according to any one of claims 11 to 17, characterized in that the spinning apparatus is a cold spinning machine.

22. The spinning apparatus according to any one of claims 11 to 20, characterized in that the spinning apparatus is a hot spinning machine.