CN113976809A - Device and method for determining punching position of fan main shaft and fan main shaft manufacturing method - Google Patents
Device and method for determining punching position of fan main shaft and fan main shaft manufacturing method Download PDFInfo
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- CN113976809A CN113976809A CN202111254163.9A CN202111254163A CN113976809A CN 113976809 A CN113976809 A CN 113976809A CN 202111254163 A CN202111254163 A CN 202111254163A CN 113976809 A CN113976809 A CN 113976809A
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- 238000004080 punching Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005242 forging Methods 0.000 claims abstract description 105
- 238000003825 pressing Methods 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/04—Piercing presses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a device and a method for determining a punching position of a fan main shaft and a fan main shaft manufacturing method, wherein the device comprises: the device comprises a first tool and a second tool, wherein the first tool is provided with a first body, and the first body is provided with a first boss; a second body is arranged on the second tool, and a second boss is arranged on the second body; when the first tool and the second tool are respectively combined on the fan main shaft die, the first boss, the second boss and the fan main shaft die are coaxial; and the first boss and the second boss are respectively matched with the punching part of the punch. The invention is used for solving the problems of low accuracy and high labor intensity of the existing hollow fan main shaft in the forging process of determining the punching position manually.
Description
Technical Field
The invention relates to the field of hollow fan spindle machining, in particular to a device and a method for determining a fan spindle punching position and a fan spindle manufacturing method.
Background
Wind energy is the main force of clean energy, and the wind power industry is developed vigorously under the promotion of market demands and competition, so that the installation amount of the fan, particularly the requirement of the large MW level fan is increased continuously. The main shaft of the large MW-level fan is large in size and belongs to a large component. Therefore, the center hole is also large, so the fan main shaft must be forged in a hollow manner. The existing general forging method of the main shaft of the hollow fan is that a steel ingot is forged into a blank and then is put into a special main shaft die, the blank is forged into a formed flange forging stock, then the forging stock is taken out and is punched, and then a core rod is stretched to stretch out the shaft body of the main shaft of the fan to the size. However, because the height of the blank is high and the punching is difficult when the forged blank is punched, the central part of the diameter of each part needs to be measured manually by a ruler, then the ruler is marked, and then the punch is placed at the marked position for punching, and the method for determining the punching position has the following defects:
(1) the diameter center position of the forging stock is measured by workers by using the scale, each forging stock needs to be measured, the production efficiency is low, the time occupied by a forging press is wasted, and the energy consumption is increased;
(2) at high temperature, a worker uses a scale to measure the diameter center position of the forging stock, so that the labor intensity of the worker is increased;
(3) errors are easily generated in the manual measurement process at high temperature, so that hole punching deviation is caused, and the product repair or scrap risk is increased.
(4) After the central position is measured, the punch cannot be rapidly placed in the center of the blank when the crane places the punch, and the efficiency is low.
Disclosure of Invention
In view of the defects of the prior art, the invention provides a device and a method for determining the punching position of a fan main shaft and a fan main shaft manufacturing method, so as to solve the problems of low accuracy and high labor intensity of the existing hollow fan main shaft in the process of forging the punching position manually.
To achieve the above and other related objects, the present invention provides an apparatus for determining a punching position of a fan main shaft, comprising: the device comprises a first tool and a second tool, wherein the first tool is provided with a first body, and the first body is provided with a first boss; the second tool is provided with a second body, and the second body is provided with a second boss; when the first tool and the second tool are respectively combined on the fan main shaft die, the first boss, the second boss and the fan main shaft die are coaxial; and the first boss is matched with the punching part of the punch, and the second boss is matched with the punching part of the punch.
In an embodiment of the present invention, the first body is matched with a first end of an inner cavity of the fan spindle mold.
In an embodiment of the present invention, an outer diameter of the first body is equal to an inner diameter of the first end of the fan spindle mold.
In an embodiment of the present invention, the second body is matched with a second end of the inner cavity of the fan spindle mold.
In an embodiment of the present invention, an outer diameter of the second body is equal to an inner diameter of the second end of the fan spindle mold.
The invention also provides a method for determining the punching position of the main shaft of the fan, which comprises the following steps: placing the first forging stock into a fan main shaft die; and forging the first forging stock into a second forging stock, manufacturing a first groove at one end part of the second forging stock, and manufacturing a second groove at the other end part of the second forging stock to obtain the formed flange forging stock. And the second forging stock is attached to the inner cavity wall body of the fan main shaft die. The first groove, the second groove and the fan main shaft die are coaxial, and the inner diameter of the first groove and/or the second groove is the same as the outer diameter of the punching part of the punch.
In an embodiment of the present invention, the step of placing the first forging stock into the fan spindle die comprises: and combining the first tool to the fan main shaft die, wherein a first body is arranged on the first tool, and a first boss is arranged on the first body.
In an embodiment of the present invention, the step of bonding the first tool to the fan spindle die includes: and placing the first tool in an inner cavity of the fan die, wherein the first boss is used for contacting a first forging stock.
In an embodiment of the present invention, the step of forging the first forging stock into the second forging stock and forming the first groove in one end portion of the second forging stock includes: and putting a first forging stock into the fan main shaft die, forging and pressing the first forging stock to obtain a second forging stock attached to the inner cavity wall body of the fan main shaft die, and embedding a first boss into the second forging stock to form the first groove.
In an embodiment of the present invention, the step of forming a second groove in the other end portion of the second forging stock includes: combining a second tool to a fan main shaft die, wherein a second body is arranged on the second tool, and a second boss is arranged on the second body; and pressing the second tool to enable a second boss to be embedded into the second forging blank to form a second groove.
In an embodiment of the present invention, the step of bonding the second tool to the fan spindle mold includes: and putting the second tool into the fan main shaft die, wherein the second boss is in contact with the second forging stock.
In an embodiment of the present invention, the forging the first forged blank to obtain a second forged blank attached to the inner cavity wall of the fan spindle die includes: and upsetting and spinning the first forging stock until a second forging stock meeting a set target is obtained.
In one embodiment of the present invention, the setting of the target includes: and the height difference between the end part of the second forging stock and the end part of the fan main shaft die is greater than the height of the second boss.
The invention also provides a manufacturing method of the fan main shaft, which comprises the following steps: placing a punching part of a punch at a punching position of a formed flange forging stock for punching; the formed flange forging stock is prepared by the method; and (3) extending the core rod into the punched hole, and stretching each part of the formed flange forging stock to a target size to obtain the main shaft of the fan.
The device for determining the punching position of the fan main shaft is simple in structure and low in cost, and the grooves can be formed in the two ends of the forging stock respectively through the device, so that the punching position is determined, the process of manually confirming the punching is omitted, and the problems of low production efficiency, high labor intensity, high repair and scrapping risks and the like caused by manually determining the punching are effectively solved. And the groove can be beneficial to fast positioning of the punch, and the production efficiency of punching can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus for determining a punching position of a main shaft of a wind turbine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fan spindle mold;
FIG. 3 is a schematic diagram of a first tool and a second tool for determining a punching position according to the present invention;
FIG. 4 is a schematic view of the punch being placed in the recess of the present invention;
FIG. 5 is a flow chart illustrating a method for determining a fan spindle hole punching position according to an embodiment of the present invention;
FIG. 6 is a flow chart illustrating a method of fabricating a fan spindle according to the present invention;
fig. 7 is a schematic structural diagram of a fan spindle according to an embodiment of the present invention.
Description of the element reference numerals
100. A first tool; 101. a first body; 102. a first boss; 200. a second tool; 201. a second body; 202. a second boss; 300. a mold; 301. an inner cavity; 400. a first forging stock; 500. forming a flange forging stock; 501. a first groove; 502. a second groove; 600. a punch; 700. a fan main shaft.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description only, and are not intended to limit the scope of the invention, and that changes or modifications in the relative relationship may be made without substantial technical changes and modifications.
Referring to fig. 1, the present invention provides an apparatus for determining a punching position of a main shaft of a wind turbine, including: the tool comprises a first tool 100 and a second tool 200, wherein the first tool 100 is provided with a first body 101, and the first body 101 is provided with a first boss 102; a second body 201 is arranged on the second tool 200, and a second boss 202 is arranged on the second body 201; when the first tool 100 and the second tool 200 are respectively combined to the fan spindle mold 300, the first boss 102, the second boss 202, and the fan spindle mold 300 are coaxial; and the first boss is matched with the punching part of the punch, and the second boss is matched with the punching part of the punch. For example, the punch is a circular structure with a slope, and the diameters of the first boss 102, the second boss 202, and the punching part of the punch are the same, all d 3. The combination comprises one or more of installation, connection and placement.
The first body 101 is a cylindrical structure, the first boss 102 is a cylindrical structure, and the diameter of the first body 101 is larger than that of the first boss 102. The second body 201 is a cylindrical structure, the second boss 202 is a cylindrical structure, and the diameter of the second body 201 is larger than that of the second boss 202. The first tool 100 and the second tool 200 are both solid components and are made of materials with hardness greater than that of the forging stock. During the use for first frock 100 and second frock 200 are located the both ends of forging stock, utilize first boss 102 and second boss 202 to make the both ends of forging stock form coaxial cylindrical recess, during punching a hole, put into the recess with the punching press portion of drift 600 and punch press can, thereby realize confirming the position of punching a hole fast.
In an embodiment of the present invention, the first tool and the second tool are integrally formed.
Referring to fig. 1 to 2, in an embodiment of the present invention, the first body 101 is matched with a first end of an inner diameter of the fan spindle mold 300. For example, the first body 101 is a cylindrical structure, and the outer diameter d1 of the first body 101 is equal to the inner diameter d1 of the first end of the fan spindle mold 300.
Referring to fig. 1 to 2, in an embodiment of the present invention, the second body 201 is matched with a second end of the inner cavity 301 of the fan spindle mold 300. For example, the second body 201 is a cylindrical structure, and the outer diameter D of the second body 201 is equal to the inner diameter D of the second end of the fan spindle mold 300.
Referring to fig. 3 to 5, the present invention further provides a method for determining a punching position of a main shaft of a wind turbine, including the steps of: placing the first forging stock 400 into a fan main shaft die 300; the first forging stock 400 is forged into a second forging stock (not shown) and a first groove 501 is made in one end portion of the second forging stock and a second groove 502 is made in the other end portion of the second forging stock, resulting in a formed flange forging stock 500. The second forging stock is attached to the wall body of the inner cavity 301 of the fan main shaft mold 300. The first groove 501, the second groove 502, and the fan spindle die 300 are coaxial, and the inner diameter of the first groove 501 and/or the second groove 502 is the same as the outer diameter of the punched portion of the punch 600. The first forging stock 400 is forged from a steel ingot to a tapered circular forging stock having a diameter (d1 and d2) equal to or less than the diameter of the corresponding cavity 301 of the fan spindle die 300 to facilitate placement of the first forging stock 400 in the cavity 301 of the fan spindle die 300.
In an embodiment of the present invention, the step of placing the first forging stock 400 into the fan spindle die 300 comprises: combining the first tool 100 to the fan spindle die 300, wherein a first body 101 is arranged on the first tool 100, and a first boss 102 is arranged on the first body 101. The combination comprises one or more of installation, connection and placement. For example, the first tooling 100 is placed in the cavity 301 of the blower die 300, wherein the first boss 102 is configured to contact the first forging stock 400.
Referring to fig. 3, in an embodiment of the present invention, forging a first forging blank 400 into a second forging blank and forming a first groove 501 in an end portion of the second forging blank includes: the first forging stock 400 is placed into the fan main shaft die 300, the first forging stock 400 is forged to obtain a second forging stock attached to the wall body of the inner cavity 301 of the fan main shaft die 300, and the first boss 102 is embedded into the second forging stock to form the first groove 501.
Referring to fig. 3, in an embodiment of the present invention, the step of forming a second groove 502 in the other end portion of the second forging includes: combining a second tool 200 to a fan spindle die 300, wherein a second body 201 is arranged on the second tool 200, and a second boss 202 is arranged on the second body 201; the second tooling 200 is pressed to embed the second boss 202 into the second forging stock to form a second recess 502. The combination comprises one or more of installation, connection and placement.
Referring to fig. 3, in an embodiment of the present invention, the step of combining the second tool 200 to the fan spindle mold 300 includes: and placing the second tool 200 into the fan main shaft die 300, wherein the second boss 202 is in contact with the second forging stock.
Referring to fig. 2 and 3, in an embodiment of the present invention, the step of forging the first forging blank 400 to obtain a second forging blank attached to the wall of the inner cavity 301 of the fan spindle mold 300 includes: upsetting and spinning the first forging stock 400 to enable the first forging stock to fill the inner cavity 301 of the wind power main shaft die 300 until a second forging stock meeting a set target is obtained. The setting of the target includes: the height difference H between the end of the second forging stock and the end of the fan main shaft die 300 is greater than the height H of the second boss 202. So that the second tooling 200 can be rapidly put into the fan spindle mold 300 and positioned at the end of the mold 300.
Referring to fig. 4, during punching, the formed flange forging blank 500 is taken out from the fan spindle die 300, and then the punching portion of the punch 600 is placed in the first groove 501 or the second groove 502 for punching, so as to obtain a punched hole. And then stretching the core rod to draw out and form each part of the flange forging stock 500 to the size of a finished product, thereby obtaining the main shaft of the fan. To reduce the friction between the punch 600 and the formed flange blank 500 during the stamping process, the punch 600 may be a tapered circular structure with the stamped portion being the larger diameter end.
Referring to fig. 6 and 7, the present invention further provides a method for manufacturing a fan spindle, including the steps of: placing the punching part of the punch 600 at the punching position of the formed flange forging blank 500 for punching; the formed flange forging stock 500 is prepared by the method; the punching position is a first groove 501 and/or a second groove 502; and (3) extending the core rod into the punched hole, and stretching each part of the formed flange forging stock 500 to a target size to obtain the main shaft 700 of the fan.
The device for determining the punching position of the fan main shaft is simple in structure and low in cost, and the grooves can be formed in the two ends of the forging stock respectively through the device, so that the punching position is determined, the process of manually confirming the punching is omitted, and the problems of low production efficiency, high labor intensity, high repair and scrapping risks and the like caused by manually determining the punching are effectively solved. And the groove can be beneficial to fast positioning of the punch, and the production efficiency of punching can be effectively improved. Based on the device and the method for determining the punching position of the fan main shaft, the production efficiency of the fan main shaft manufacturing method and the qualification rate of products can be effectively improved.
Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An apparatus for determining a punching position of a main shaft of a fan, comprising:
the first tool is provided with a first body, and the first body is provided with a first boss;
the second tool is provided with a second body, and a second boss is arranged on the second body;
when the first tool and the second tool are respectively combined on the fan main shaft die, the first boss, the second boss and the fan main shaft die are coaxial; and the first boss and the second boss are respectively matched with the punching part of the punch.
2. The apparatus of claim 1, wherein the first body mates with a first end of an interior cavity of a fan spindle die.
3. The apparatus of claim 2, wherein the first body is a cylindrical structure, and the diameter of the first body is equal to the inner diameter of the first end of the fan main shaft die.
4. The apparatus of claim 2, wherein the second body mates with a second end of the cavity of the fan spindle die.
5. The apparatus of claim 4, wherein the second body is a cylindrical structure, and the diameter of the second body is equal to the inner diameter of the second end of the fan main shaft die.
6. A method for determining a punching position of a main shaft of a fan is characterized by comprising the following steps:
placing the first forging stock into a fan main shaft die;
forging the first forging stock into a second forging stock, manufacturing a first groove at one end of the second forging stock, manufacturing a second groove at the other end of the second forging stock, and attaching the second forging stock to the inner cavity wall body of the fan main shaft mold;
the first groove, the second groove and the fan main shaft die are coaxial, and the first groove and/or the second groove are/is matched with a punching part of the punch.
7. The method for determining the main shaft punching position of the wind turbine as claimed in claim 6, wherein the step of placing the first forging stock into the wind turbine main shaft die comprises: combining a first tool to the fan main shaft die, wherein a first body is arranged on the first tool, and a first boss is arranged on the first body.
8. The method of determining the punch hole location of the main shaft of the blower as set forth in claim 7, wherein the step of forging the first forging stock into the second forging stock and forming the first recess in an end portion of the second forging stock comprises: and putting a first forging stock into the fan main shaft die, forging and pressing the first forging stock to obtain a second forging stock attached to the inner cavity wall body of the fan main shaft die, and embedding the first boss into the second forging stock to form the first groove.
9. The method of determining the fan main shaft punching position according to claim 8, wherein the step of forging and pressing the first forging stock to obtain a second forging stock which is attached to the inner cavity wall of the fan main shaft die comprises the following steps: and upsetting and spinning the first forging stock until a second forging stock meeting a set target is obtained.
10. A manufacturing method of a fan spindle is characterized by comprising the following steps:
placing a punching part of a punch at a punching position of a formed flange forging stock for punching; the shaped flange forging is produced by the method of any one of claims 6 to 9;
and (3) extending the core rod into the punched hole, and stretching each part of the formed flange forging stock to a target size to obtain the main shaft of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111254163.9A CN113976809A (en) | 2021-10-27 | 2021-10-27 | Device and method for determining punching position of fan main shaft and fan main shaft manufacturing method |
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| CN202111254163.9A CN113976809A (en) | 2021-10-27 | 2021-10-27 | Device and method for determining punching position of fan main shaft and fan main shaft manufacturing method |
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