CN116944323A - Multi-tool composite edge constraint spinning die tool - Google Patents
Multi-tool composite edge constraint spinning die tool Download PDFInfo
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- CN116944323A CN116944323A CN202311010066.4A CN202311010066A CN116944323A CN 116944323 A CN116944323 A CN 116944323A CN 202311010066 A CN202311010066 A CN 202311010066A CN 116944323 A CN116944323 A CN 116944323A
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- 238000009987 spinning Methods 0.000 title claims abstract description 126
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000007704 transition Effects 0.000 claims description 35
- 230000000670 limiting effect Effects 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002073 nanorod Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
A multi-tool composite edge constraint spinning die tool belongs to the technical field of spinning manufacturing of aerospace equipment. The invention solves the problem that the integral forming of the existing complex thin-wall curved bus member with the local groove characteristic is not easy to realize. The spinning machine comprises a female die, a base, a spinning wheel assembly and a spinning rod assembly, wherein the female die is arranged on a main shaft of the spinning machine, the inner surface of the female die and the outer surface of a member to be formed are arranged along with the shape, the base is arranged on an interface dovetail groove of the spinning machine, the spinning wheel assembly and the spinning rod assembly are arranged on the base in a replacement mode, and the installation angle adjustment of the spinning wheel assembly and the spinning rod assembly is achieved through pins. The component is preliminarily formed through the rotating wheel component, and after preliminary forming, the fine characteristic parts such as local grooves on the component are further formed through the rotating rod component. According to the invention, the spinning wheel assembly and the spinning rod assembly are replaced, so that the edge constraint spinning forming of the complex thin-wall curved bus member with the partial groove characteristic is realized.
Description
Technical Field
The invention relates to a multi-tool composite edge constraint spinning die tool, and belongs to the technical field of spinning manufacturing of aerospace equipment.
Background
The integrated manufacturing of the complex thin-wall component is an effective way for realizing the large-scale and light-weight of the aerospace equipment. At present, a large number of aerospace key components are designed into a large thin-wall rotary body structure and often have local abrupt change characteristics, but how to realize high-efficiency low-cost integral manufacture of the aerospace key components is always a difficult problem.
The edge constraint spinning is to fix the edge of a rotating blank, and gradually load the blank along the inner surface of the rotating blank through a spinning roller, so that the blank is gradually formed into a complex curved bus component under the action of a predetermined track of the spinning roller. For a large-size thin-wall back cover structure, the edge constraint spinning technology is adopted, so that the rigidity of a blank can be greatly improved, the problem of instability and wrinkling of the edge of the blank during spinning is avoided, and the integral forming of a thin-wall curved bus member with a flange and a large diameter-to-thickness ratio can be realized.
However, for thin-walled curved busbar components with partial groove fine features, it is difficult to form fine partial grooves using a roller-based constrained spinning method due to the limitations of roller shape size. Currently, the integral forming of components with local fine features is mostly performed by stamping or asymptotic forming processes. When the stamping process is adopted for forming, high requirements are set for equipment such as hydraulic press equipment tonnage, table top size, stamping die and the like, and workpieces with larger deep diameters are difficult to form due to the limitation of forming limit. When the single-point asymptotic forming process is adopted, the blank is fixed, the asymptotic forming tool head rotates and feeds in a milling cutter-like movement mode under the control of an asymptotic forming numerical control machine tool, and the final shape of the workpiece is formed by gradually loading and enveloping the tool head. The asymptotic forming process is flexible, and thin-wall sheet metal parts with complex shapes can be formed, but the blank wall thickness is limited greatly, the member with larger wall thickness is difficult to form, the forming efficiency is lower than that of the spinning forming, the rebound of the blank after forming is large, and the precision control is difficult.
Therefore, there is a need for a mold tooling that can integrally form complex thin-walled curved busbar components with localized groove features.
Disclosure of Invention
The invention aims to solve the problem that the integral forming of a complex thin-wall curved bus member with a local groove characteristic is difficult to realize in the prior art, and further provides a multi-tool composite edge constraint spinning die tool.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a compound edge constraint spinning mould frock of multiplex tool, includes die, base, revolver subassembly and stick spinning subassembly, wherein the die is installed on the main shaft of spinning machine, just the internal surface of die and wait to take shape the surface along with the shape setting of component, the base is installed on the interface dovetail of spinning machine, revolver subassembly with stick spinning subassembly replacement is installed on the base, realizes the installation angle adjustment of revolver subassembly and stick spinning subassembly through the pin.
Further, the rotary wheel assembly comprises a rotary wheel main body and a first transition connecting piece, wherein the rotary wheel main body is rotatably arranged at one end part of the first transition connecting piece through a rotary wheel shaft, and the other end part of the first transition connecting piece is fixedly arranged on the base.
Further, the rotary wheel main body is of a circular ring structure, the radial section of the outer circular surface of the rotary wheel main body is of a circular arc structure, the rotary wheel shaft is of a stepped shaft, and the rotary wheel main body and the rotary wheel shaft are in rotary connection through tapered roller bearings.
Further, one end part of the first transition connecting piece is of a fork-shaped structure, and the rotary wheel main body is rotatably arranged in the fork-shaped structure through a rotary wheel shaft.
Further, the spiral-rod assembly comprises a spiral-rod main body, a sleeve, a connecting barrel and a second transition connecting piece, wherein the tail part of the spiral-rod main body is rotatably installed in the connecting barrel, the sleeve is covered at the top end of the connecting barrel for axial limiting, a connecting block is integrally and fixedly installed at the bottom of the connecting barrel, the connecting block is fixedly connected with the second transition connecting piece, and one end part, far away from the connecting barrel, of the second transition connecting piece is fixedly installed on the base.
Further, the head of the rotary rod main body is in a circular arc structure or the head of the rotary rod main body is rotatably provided with balls.
Further, the rotary rod main body comprises a mounting section, a limiting section and a spinning section which are integrally formed in sequence along the axial direction of the rotary rod main body, wherein the mounting section is a tail section, and the diameters of the mounting section and the spinning section are smaller than the diameter of the limiting section.
Further, a thrust bearing is circumferentially arranged outside the mounting section, the limiting section is clamped between the thrust bearing and the sleeve, and a cylindrical roller bearing is arranged between the spinning section and the sleeve.
Further, the base is in a triangular structure, and the spinning wheel assembly or the spinning rod assembly is arranged at one vertex of the triangle.
Further, the top of die has set firmly the blank holder platform along its circumference an organic whole, just the last processing of blank holder platform has a plurality of bolt holes, the surface of die has set firmly a plurality of strengthening ribs.
Compared with the prior art, the invention has the following effects:
the component is preliminarily formed through the rotary wheel assembly, and the fine characteristic parts such as the local grooves on the component after preliminary forming are further formed through the rotary rod assembly.
The inner surface of the female die is designed according to the outer surface of the member to be formed. The bottom of the inner surface of the female die is provided with a local bulge structure for forming a local groove part of the component.
The rotary wheel assembly and the rotary rod assembly can be switched on the base by tools, and the installation angle adjustment can be realized through pins. For the components with shallow forming depth, the whole forming process can be completed by one installation angle, and for the components with deep forming depth, a plurality of installation angles can be changed according to actual needs, so that the forming of the components is facilitated, and interference in the forming process is effectively avoided.
According to the invention, the spinning wheel assembly and the spinning rod assembly are replaced, so that the edge constraint spinning forming of the complex thin-wall curved bus member with the partial groove characteristic is realized.
The multi-tool composite edge constraint spinning die tool has the advantages of large blank thickness allowable range, large formable member size, high forming efficiency, high precision, low cost and the like.
Drawings
FIG. 1 is a schematic perspective view of a multi-tool composite edge-constrained spinning tool using a spinning wheel assembly according to the present invention;
FIG. 2 is a schematic perspective view of a multi-tool composite edge-constrained spinning tool using a mandrel assembly in accordance with the present invention;
FIG. 3 is a schematic cross-sectional view of a multi-tool composite edge-constraining, spinning die tooling utilizing a spinning wheel assembly in accordance with the present invention;
FIG. 4 is a schematic perspective view of a base;
FIG. 5 is a schematic perspective view of a spinning wheel body;
FIG. 6 is a schematic perspective view of a second transition piece;
FIG. 7 is a schematic view of a principal cross-section of a nanorod assembly (the mounting section of the nanorod body is of longer construction, and the second transition piece is not shown);
FIG. 8 is a schematic front cross-sectional view of a spin stick body with balls mounted (the mounting section of the spin stick body is a shorter structure);
FIG. 9 is a schematic dimensional view of a complex thin-walled curved busbar component with partial groove features;
fig. 10 is a physical diagram of an experimental workpiece obtained in the second embodiment.
In the figure:
1. a female die; 11. a blank pressing platform; 12. reinforcing ribs; 2. a base; 21. a mounting hole; 22. a pin hole; 3. a spinning wheel assembly; 31. a spinning wheel main body; 32. a first transition piece; 33. a rotating shaft; 34. tapered roller bearings; 4. a rotating rod assembly; 41. a rotating rod main body; 411. a mounting section; 412. a limiting section; 413. spinning the section; 42. a sleeve; 43. a connecting barrel; 44. a second transition piece; 45. a connecting block; 46. a ball; 47. a thrust bearing; 48. cylindrical roller bearings; 49. an end cap; 5. and (5) a pin.
Detailed Description
The first embodiment is as follows: the present embodiments will be described in detail with reference to fig. 1 to 10, and it is apparent that the described embodiments are only some embodiments, but not all embodiments of the present invention, and all other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of the present invention.
It should be noted that, the descriptions of the directions of "left", "right", "upper", "lower", "top", "bottom", and the like of the present invention are defined based on the relation of orientations or positions shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the structures must be constructed and operated in a specific orientation, and thus, the present invention should not be construed as being limited thereto. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The utility model provides a compound edge constraint spinning mould frock of multiplex tool, includes die 1, base 2, spin wheel subassembly 3 and stick spinning subassembly 4, wherein die 1 installs on the main shaft of spinning machine, just the internal surface of die 1 and wait to take shape the external surface along with the shape setting of component, base 2 installs on the interface dovetail of spinning machine, spin wheel subassembly 3 with stick spinning subassembly 4 replacement is installed on base 2, realizes the installation angle adjustment of spin wheel subassembly 3 and stick spinning subassembly 4 through pin 5.
The multi-tool composite edge constraint spinning die tool is arranged on a spinning machine, wherein a female die 1 is coaxially and fixedly arranged on a main shaft and rotates along with the circumferential direction of the main shaft, and a base 2 is cooperatively arranged on an interface dovetail groove of a spinning wheel of the spinning machine to feed in the X direction and the Z direction.
The inner surface of the female die 1 is sized and shaped according to the outer surface of the member to be formed. The bottom of the inner surface of the female die 1 is provided with a local convex structure for forming a local groove part of the component.
Preliminary forming of the component is carried out through the rotary wheel assembly 3, and fine characteristic parts such as partial grooves and the like on the component after preliminary forming are further formed through the rotary rod assembly 4.
The rotary wheel assembly 3 and the rotary rod assembly 4 can be switched on the base 2, and the installation angle can be adjusted through the pin 5. For the components with shallow forming depth, the whole forming process can be completed by one installation angle, and for the components with deep forming depth, a plurality of installation angles can be changed according to actual needs, so that the forming of the components is facilitated, and interference in the forming process is effectively avoided.
The number of the pins 5 used for adjusting the installation angle is at least one, when the pins 5 are more than two, the better limiting effect can be achieved, the pins 5 are prevented from being bent or damaged due to large stress in the spinning forming process, and the stable installation of the spinning assembly 3 and the spinning rod assembly 4 is further ensured.
The base 2 is provided with a mounting hole 21 and a plurality of pin holes 22, the plurality of pin holes 22 are circumferentially arranged along the mounting hole 21, and the mounting angle adjustment of the rotating wheel assembly 3 or the rotating rod assembly 4 is realized through the cooperation of the adjusting pin 5 and different pin holes 22.
According to the invention, the spinning wheel assembly 3 and the spinning rod assembly 4 are replaced, so that the edge constraint spinning forming of the complex thin-wall curved bus member with the partial groove characteristic is realized.
The multi-tool composite edge constraint spinning die tool has the advantages of large blank thickness allowable range, large formable member size, high forming efficiency, high precision, low cost and the like.
The rotary wheel assembly 3 comprises a rotary wheel main body 31 and a first transition connecting piece 32, wherein the rotary wheel main body 31 is rotatably installed at one end part of the first transition connecting piece 32 through a rotary wheel shaft 33, and the other end part of the first transition connecting piece 32 is fixedly installed on the base 2. So designed, the rotary wheel main body 31 is installed on the base 2 through the first transition connecting piece 32, the rotary wheel main body 31 is rotatably installed at one end part of the first transition connecting piece 32 through the rotary wheel shaft 33, the other end part of the first transition connecting piece 32 is installed on the base 2 through the positioning of the pin 5, the first transition connecting piece 32 can be rotatably installed on the base 2 through the rotating shaft, and the installation angle of the first transition connecting piece 32 on the base 2 is adjusted through adjusting the position of the pin 5.
The spinning wheel main body 31 is of a circular ring structure, the radial cross section of the outer circular surface of the spinning wheel main body is of a circular arc structure, the spinning wheel shaft 33 is of a stepped shaft, and the spinning wheel main body 31 and the spinning wheel shaft 33 are rotationally connected through a tapered roller bearing 34. So designed, the radial cross section of the outer circumferential surface of the spinning wheel body 31 is preferably semicircular. The tapered roller bearings 34 are paired in number and mounted back-to-back on the spinning shaft 33.
One end of the first transition connecting piece 32 is in a fork structure, and the spinning wheel main body 31 is rotatably arranged in the fork structure through the spinning wheel shaft 33. By arranging one end of the first transition piece 32 in a fork-shaped structure, the rotary wheel main body 31 can be conveniently extended into the cavity of the female die 1, so that interference is avoided.
The rotary rod assembly 4 comprises a rotary rod main body 41, a sleeve 42, a connecting barrel 43 and a second transition connecting piece 44, the tail of the rotary rod main body 41 is rotatably installed in the connecting barrel 43, the sleeve 42 covered at the top end of the connecting barrel 43 is used for axial limiting, a connecting block 45 is integrally fixedly installed at the bottom of the connecting barrel 43, the connecting block 45 is fixedly connected with the second transition connecting piece 44, and one end part, far away from the connecting barrel 43, of the second transition connecting piece 44 is fixedly installed on the base 2. So designed, the rotating rod body 41 is preferably of cylindrical configuration. The rotary rod main body 41 can axially rotate so as to realize that the contact form of the rotary rod main body 41 and the blank is converted from a dry friction form to a rolling friction form, and further avoid the problems of poor surface quality of the blank and excessive abrasion of the surface of the rotary rod main body 41 caused by dry friction. The sleeve 42 is fixedly connected with the connecting barrel 43 through a plurality of screws so as to facilitate the disassembly and assembly of the sleeve 42. An end cover 49 is arranged above the cylindrical roller bearing 48, and sundries are prevented from entering the bearing by arranging the end cover 49. The connecting block 45 can be inserted on the second transition connecting piece 44, so that the connection strength is further ensured; the connecting block 45 and the second transition connecting piece 44 can be fixedly connected by bolts or pins 5. One end of the second transition connecting piece 44 is positioned and installed on the base 2 through the pin 5, the second transition connecting piece 44 can be simultaneously installed on the base 2 through the rotation of the rotating shaft, and the installation angle of the second transition connecting piece 44 on the base 2 is adjusted by adjusting the position of the pin 5.
The head of the rotary rod body 41 is in a circular arc structure or the head of the rotary rod body 41 is rotatably provided with a ball 46. So designed, the head of the stick body 41 is designed to have a circular arc structure, facilitating the formation of a partial groove on the member. The circular arc-shaped structure is preferably hemispherical. The ball 46 is rotatably arranged on the head of the rotary rod main body 41, so that dry friction with the blank is avoided when the rotary rod main body 41 is axially or the surface of the blank is vertical, and the quality problem of the surface of the spun blank is improved.
The rotary rod main body 41 comprises a mounting section 411, a limiting section 412 and a spinning section 413 which are integrally formed in sequence along the axial direction of the rotary rod main body, wherein the mounting section 411 is a tail section, and the diameters of the mounting section 411 and the spinning section 413 are smaller than the diameter of the limiting section 412. So designed, the sleeve 42 is pressed against one end face of the limiting section 412 to realize axial limiting of the rotating rod body 41. The end of the spinning section 413 has a circular arc structure or the end of the spinning section 413 is rotatably provided with the balls 46.
The thrust bearing 47 is circumferentially arranged outside the mounting section 411, and the limit section 412 is sandwiched between the thrust bearing 47 and the sleeve 42, and the cylindrical roller bearing 48 is provided between the spinning section 413 and the sleeve 42. By such design, through setting up thrust bearing 47, the axial spacing of the stick body 41 is further realized when the stick body 41 circumference rotation of being convenient for.
The base 2 is in a triangular structure, and the rotating wheel assembly 3 or the rotating rod assembly 4 is arranged at one vertex of the triangle. Through the base 2 with the overall triangular structure, the overall rigidity of the multi-tool composite edge constraint spinning die tool is guaranteed, and the strokes of the spinning roller main body 31 and the spinning rod main body 41 are guaranteed to meet constraint spinning requirements. The spinning roller assembly 3 or the spinning rod assembly 4 is arranged at one vertex of the triangle, so that the interference in the spinning process is effectively avoided, and the installation angles of the spinning roller assembly 3 and the spinning rod assembly 4 are convenient to adjust.
The top of die 1 has set firmly blank holder platform 11 along its circumference an organic whole, just a plurality of bolt holes have been processed on the blank holder platform 11, the surface of die 1 has set firmly a plurality of strengthening ribs 12. By means of the design, the blank edge is fixed through the cooperation of the plurality of bolt holes and the blank pressing ring. The bolt holes are preferably uniformly distributed on the blank holder platform 11. By providing the reinforcing ribs 12, the rigidity of the entire female die 1 can be increased. The reinforcing ribs 12 are uniformly distributed along the circumferential direction of the female die 1.
The complex thin-wall curved bus member with the local groove features is formed by utilizing the multi-tool composite edge constraint spinning die tool disclosed by the invention, and the complex thin-wall curved bus member with the local groove features is mainly characterized in that: the side wall part is a simple revolution body with an arc line or a straight line, the local groove part is a local abrupt change feature of depth h, the diameter D of the original slab is 300mm-3000mm, and the thickness t of the original slab is 1mm-10mm.
When the edge constraint spinning process is used for forming, the blank is a round plate, when the deep diameter of a component is larger, the interference problem between a spinning tool and a female die is difficult to be avoided by a single spinning wheel installation angle, and therefore the installation angle needs to be changed by the spinning wheel.
When forming a thin-wall rotary body component with local groove characteristics, local abrupt change structures such as small grooves are difficult to form due to the limitations of overlarge radius of the outer diameter of the rotary wheel main body and the round angle of the outer circular surface of the rotary wheel main body, and the like, so that the rotary rod is designed to spin the local groove parts.
The forming method comprises the following steps:
firstly, installing a blank on a heated female die 1, rotating the blank along with the female die 1, and adopting a roller assembly 3 to carry out multi-pass spinning to extrude an intermediate blank in a pass-by-pass spinning way;
and step two, replacing the lower spinning roller assembly 3, wherein a partial groove part of a forming member of the spinning rod assembly 4 is adopted, and when the spinning is carried out on the spinning rod main body 41, the top and the bottom of a groove to be formed are taken as dividing lines and divided into three parts, and the feeding directions of the three parts are all from high to low, namely, all the feeding directions are all towards the bottom.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 to 10, as shown in fig. 9: a complex thin-wall curved bus member with partial groove features has the following dimensions: the diameter D of the component flange is 750mm, the diameter of the opening is 550mm, and the local groove characteristic r 1 Is 10mm, r 2 15mm, 13mm of groove height h, 750mm of outer diameter of aluminum alloy annular plate, 150mm of inner hole diameter, 5mm of plate thickness t and 21 of mounting holes drilled at the edge of the blank. The specific forming method is as follows:
firstly, clamping a blank on the end face of a female die 1, setting the rotating speed of a main shaft to be 30r/min-100r/min, spraying graphite lubrication on the inner surface and the outer surface of the blank, heating the female die 1 to 150 ℃, heating the blank to 250 ℃, setting the installation angle of a spinning wheel assembly 3 to 20 degrees, spinning the spinning wheel assembly 3 at a feeding speed of 50mm/min-150mm/min for 9 times, forming a middle blank, and setting the bottom of the middle blank to be in a transition shape, wherein the transition shape can enable the contact angle of a spinning rod to be more beneficial to the rotation of the spinning rod;
step two, replacing the lower spinning roller assembly 3, namely, adopting a side wall part of a partial groove of a forming member of a spinning rod assembly 4, and dividing the spinning rod main body 41 into three parts by taking the top and the bottom of the groove to be formed as dividing lines when spinning, wherein the feeding directions of the three parts are all from high to low, namely, all feed to the bottom; the temperature of the blank is 200 ℃, the rotating speed of the main shaft is 6r/min-15r/min, and the feeding speed is 6mm/min-20mm/min.
The experimental workpiece obtained by the method and the blank with specific size is shown in figure 10, the workpiece has no spinning defects such as wrinkling, cracking and the like, the height of a local groove reaches 13mm, and the fluctuation of the wall thickness of each area is small.
From the above results, the multi-tool composite edge constraint spinning die tool provided by the invention can be used for effectively forming the complex thin-wall curved bus member with the local groove characteristics, and the problem of integral forming of the large-size thin-wall complex curved bus member with the local characteristics is solved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a compound edge constraint spinning mould frock of multiplex, its characterized in that: the spinning machine comprises a female die (1), a base (2), a spinning wheel component (3) and a spinning rod component (4), wherein the female die (1) is arranged on a main shaft of the spinning machine, the inner surface of the female die (1) and the outer surface of a member to be formed are arranged along with the shape, the base (2) is arranged on an interface dovetail groove of the spinning machine, the spinning wheel component (3) and the spinning rod component (4) are arranged on the base (2) in a replacement mode, and the installation angle adjustment of the spinning wheel component (3) and the spinning rod component (4) is achieved through a pin (5).
2. The multi-tool composite edge-constraining spin die tooling of claim 1, wherein: the rotary wheel assembly (3) comprises a rotary wheel main body (31) and a first transition connecting piece (32), wherein the rotary wheel main body (31) is rotatably installed at one end part of the first transition connecting piece (32) through a rotary wheel shaft (33), and the other end part of the first transition connecting piece (32) is fixedly installed on the base (2).
3. The multi-tool composite edge-constraining spin die tooling of claim 2, wherein: the rotary wheel main body (31) is of a circular ring structure, the radial section of the outer circular surface of the rotary wheel main body is of a circular arc structure, the rotary wheel shaft (33) is of a stepped shaft, and the rotary wheel main body (31) and the rotary wheel shaft (33) are rotationally connected through a tapered roller bearing (34).
4. A multi-tool composite edge-constraining, spinning, die tooling as in claim 3, wherein: one end part of the first transition connecting piece (32) is of a fork-shaped structure, and the rotary wheel main body (31) is rotatably arranged in the fork-shaped structure through the rotary wheel shaft (33).
5. The multi-tool composite edge-constraining spin die tooling of claim 1, wherein: the rotary rod assembly (4) comprises a rotary rod main body (41), a sleeve (42), a connecting barrel (43) and a second transitional connecting piece (44), wherein the tail of the rotary rod main body (41) is rotatably installed in the connecting barrel (43), the sleeve (42) which is covered at the top end of the connecting barrel (43) is used for limiting the axial direction, a connecting block (45) is integrally fixedly installed at the bottom of the connecting barrel (43), the connecting block (45) is fixedly connected with the second transitional connecting piece (44) through the connecting block (45), and one end part, far away from the connecting barrel (43), of the second transitional connecting piece (44) is fixedly installed on the base (2).
6. The multi-tool composite edge-constraining spin die tooling of claim 5, wherein: the head of the rotary rod main body (41) is in a circular arc structure or the head of the rotary rod main body (41) is rotatably provided with a ball (46).
7. The multi-tool composite edge-constraining spin die tooling of claim 5, wherein: the rotary rod main body (41) comprises a mounting section (411), a limiting section (412) and a spinning section (413) which are integrally formed in sequence along the axial direction of the rotary rod main body, wherein the mounting section (411) is a tail section, and the diameters of the mounting section (411) and the spinning section (413) are smaller than the diameter of the limiting section (412).
8. The multi-tool composite edge-constraining spin die tooling of claim 7, wherein: a thrust bearing (47) is circumferentially arranged outside the mounting section (411), the limiting section (412) is clamped between the thrust bearing (47) and the sleeve (42), and a cylindrical roller bearing (48) is arranged between the spinning section (413) and the sleeve (42).
9. The multi-tool composite edge-constraining spin die tooling of claim 1, wherein: the base (2) is of a triangle structure, and the rotating wheel component (3) or the rotating rod component (4) is arranged at one vertex of the triangle.
10. The multi-tool composite edge-constraining spin die tooling of claim 1, wherein: the top of die (1) has set firmly blank holder platform (11) along its circumference an organic whole, just a plurality of bolt holes have been processed on blank holder platform (11), the surface of die (1) has set firmly a plurality of strengthening ribs (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311010066.4A CN116944323B (en) | 2023-08-11 | Multi-tool composite edge constraint spinning die tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311010066.4A CN116944323B (en) | 2023-08-11 | Multi-tool composite edge constraint spinning die tool |
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