CN113617915A - Local loading integral forming method for special-shaped section rib cylindrical part - Google Patents
Local loading integral forming method for special-shaped section rib cylindrical part Download PDFInfo
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- CN113617915A CN113617915A CN202110862139.7A CN202110862139A CN113617915A CN 113617915 A CN113617915 A CN 113617915A CN 202110862139 A CN202110862139 A CN 202110862139A CN 113617915 A CN113617915 A CN 113617915A
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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
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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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Abstract
The invention belongs to the technical field of plastic processing, and particularly discloses a local loading integral forming method of a special-shaped gluten cutting cylindrical piece. The invention reduces the extrusion load, improves the process flexibility, integrally forms the large-diameter thin-wall special-shaped gluten cutting cylindrical piece, and has simple working procedures and convenient operation. The invention is suitable for integral forming of the special-shaped section rib cylindrical piece.
Description
Technical Field
The invention belongs to the technical field of plastic processing, and particularly relates to a local loading integral forming method of a special-shaped section rib cylindrical piece.
Background
Aerospace equipment such as heavy carrier rockets, space vehicles and the like is an important mark of national science and technology level as a high-level national international competition, so that the high-end equipment is required to have the characteristics of large carrying capacity, long range, low energy consumption and long service life, and further, key components of the equipment also have the characteristics of high performance, high reliability, light weight and high efficiency, so that the equipment is inevitably selected from light high-strength materials and is processed into a complex, thin-wall, integrated and light-weight cross-scale complex structure. The high-strength aluminum alloy cylindrical piece with the special-shaped section bar gluten is a typical representative of the type, and the special-shaped section bar gluten is designed outside the high-strength aluminum alloy cylindrical piece, so that the strength and the rigidity of the member can be greatly improved, and the weight of the member can be reduced. However, the large diameter and the thin wall of the large-diameter thin-wall irregular section rib cylindrical part cylinder body and the structure of the local extremely complex molded surface are compounded, so that the traditional plastic forming process is difficult to cooperate with the deformation of the large diameter and the thin wall to form the whole body. The integral forming difficulty of the large-diameter thin-wall special-shaped section rib cylindrical part has three difficulties: firstly, how to realize the forming of a large-diameter thin-wall cylinder body with extreme size, namely the problem of cylinder forming; secondly, how to form a special-shaped extremely complex structure of the local part of the gluten cutting, namely the difficult problem of 'forming gluten'; and thirdly, how to coordinate the deformation of two different extremely complex structures of the rib and the cylinder, namely the problem of 'the deformation coordination of the rib and cylinder structure'.
The existing mechanical milling pure machining can realize integral manufacturing through material reduction, but has the defects of large removal amount, long period and low material utilization rate in mechanical processing, and the milling can cut off a metal streamline and generate complex residual stress, so that the shape distortion and the microcrack are caused, and the service performance of a component is further influenced. The assembly manufacturing method of riveting/welding the skin, the stringer, the bulkhead, the section bar and other parts in a blocking forming mode is not integrally formed, the service hidden trouble caused by ineffective weight increment of rivets/welding seams and local stress concentration is caused, and the problems of multiple working procedures, long flow path and the like exist. Therefore, the existing manufacturing methods of pure milling, block forming and riveting/welding assembly cannot meet the requirement of high-performance and high-efficiency integral forming of the large-diameter thin-wall special-shaped rib cylinder cross-scale component. If the traditional integral loading forming inner and outer rib structure is adopted, the problems of large forming load and the like exist, the process flexibility for regulating and controlling the deformation of the ribs and the cylinder is lacked, the forming difficulty of the extremely complex structures is very high or even impossible due to the limitation of the mold structure and the demolding. For example, forging, rolling, rotary forging and other processes are suitable for processing rib plate members, but are difficult to be applied to the forming of rib tube/ring members; the plastic forming process mainly relates to a simpler regular gluten-cutting structure such as rectangle and trapezoid, and is difficult to expand and apply to the forming of a complex structure of the rib with the special-shaped section.
Disclosure of Invention
The invention aims to provide a local loading integral forming method of a special-shaped gluten cutting cylindrical piece so as to realize integral forming of a large-diameter thin-wall special-shaped gluten cutting cylindrical piece.
In order to achieve the purpose, the technical method comprises the following steps:
a local loading integral forming method for a special-shaped section rib cylindrical part comprises the following steps:
s1, fixing the cylindrical blank on a spinning core mould by a tail jacking mechanism, arranging flow spinning wheels at two sides of the cylindrical blank, and rotating the spinning core mould to drive the cylindrical blank to rotate;
s2, in the rotating process of the cylindrical blank, moving the flow spinning wheel to the spinning position of the area to be deformed, firstly carrying out radial feeding and pressing on the cylindrical blank by the flow spinning wheel to a first preset thinning amount, then carrying out axial feeding according to a preset axial feeding amount to form a thick-wall area and a thin-wall area, and then spinning out the flow spinning wheel and moving the flow spinning wheel to the area which is not deformed;
s3, repeating the step S2 until all areas of the cylindrical blank are deformed, and obtaining the cylindrical blank with different thicknesses;
s4, replacing the flowing rotary extrusion wheel with a special-shaped gluten cutting rotary extrusion wheel, and axially extruding and forming the thick-wall area of the cylindrical blank with different thicknesses by the special-shaped gluten cutting rotary extrusion wheel to obtain special-shaped gluten cutting;
s5, replacing the special-shaped gluten cutting rotary extrusion rotary wheel with a backflow rotary extrusion rotary wheel, and performing radial feeding and pressing to the thin-wall area of the cylindrical blank with different thicknesses by the rotary extrusion rotary wheel until the thin-wall area is reduced to a second preset thickness, and then performing axial feeding to thin the thin-wall area of the cylindrical blank with different thicknesses, thereby obtaining the special-shaped gluten cutting cylindrical piece.
As a limitation: the number of the flow-spinning rollers in step S1 is four, two flow-spinning rollers are provided on one side of the cylindrical blank, and the other two flow-spinning rollers are provided on the other side of the cylindrical blank.
As a further limitation: the spinning positions of the two flow spinning wheels disposed on the same side of the cylindrical blank in step S2 are located at the beginning and end of the region to be deformed on the side of the cylindrical blank, respectively; the axial feeding directions of the two flow spinning rollers arranged on the same side of the cylindrical blank are opposite.
As another limitation: the number of the flow spinning rollers in step S1 is two, and the two flow spinning rollers are respectively provided on both sides of the cylindrical blank.
As a limitation: in step S2, the spinning positions of the two spinning rollers are located at the beginning ends of the regions to be deformed on both sides of the cylindrical blank, the spinning rollers perform radial feeding and pressing on the cylindrical blank to a first predetermined thinning amount, perform axial feeding toward the middle of the region to be deformed according to a predetermined axial feeding amount, screw out and move the spinning rollers to the end of the region to be deformed, the spinning rollers perform radial feeding and pressing on the cylindrical blank to a first predetermined thinning amount, and perform axial feeding toward the middle of the region to be deformed according to a predetermined axial feeding amount, thereby forming a thick-wall region and a thin-wall region.
As a further limitation: the special-shaped gluten cutting and rotary extrusion spinning wheel in the step S4 comprises a pair of spinning wheels and a special-shaped spinning wheel, wherein the pair of spinning wheels comprises a first pair of spinning wheels and a second pair of spinning wheels, and the special-shaped spinning wheel comprises a first special-shaped spinning wheel and a second special-shaped spinning wheel; the first contra-wheel rotating wheel and the first special-shaped rotating wheel are arranged on one side of the cylindrical blank with different thicknesses and are positioned at two ends of the thick-wall area, and the second contra-wheel rotating wheel and the second special-shaped rotating wheel are arranged on the other side of the cylindrical blank with different thicknesses and are positioned at two ends of the thick-wall area; the process that the abnormal-shaped cut gluten rotary extrusion rotary wheel performs axial extrusion on the thick-wall area of the cylindrical blank with different thicknesses specifically comprises the steps that the first counter wheel rotary wheel and the first abnormal-shaped rotary wheel perform axial feeding in opposite directions, extrusion forming is performed, and the second counter wheel rotary wheel and the second abnormal-shaped rotary wheel perform axial feeding in opposite directions and extrusion forming is performed.
As a further limitation: in the step S5, the special-shaped gluten cutting and rotary extrusion rotary wheel is replaced by a backflow rotary extrusion rotary wheel, the number of the rotary extrusion rotary wheels is four, two rotary extrusion rotary wheels are arranged on one side of the cylindrical blank with different thicknesses, the other two rotary extrusion rotary wheels are arranged on the other side of the cylindrical blank with different thicknesses, the rotation starting positions of the two rotary extrusion rotary wheels arranged on the same side of the cylindrical blank with different thicknesses are respectively positioned at two ends of a thick-wall area on the side of the cylindrical blank with different thicknesses, and the axial feeding directions of the two rotary extrusion rotary wheels face to a thin-wall area.
As a further limitation: and S5, replacing the back-flow spinning rollers with the special-shaped gluten cutting spinning rollers, wherein the number of the two spinning rollers is two, the two spinning rollers are respectively arranged at two sides of the cylindrical blank with different thicknesses, the spinning positions of the two spinning rollers are respectively positioned at one end of the thick-wall area at two sides of the cylindrical blank with different thicknesses, and the axial feeding directions of the two spinning rollers face the thin-wall area.
As a limitation: the special-shaped gluten cutting device is a T-shaped gluten, and the flow spinning wheel adopts an arc spinning wheel; the pair of spinning wheels adopts a cylindrical spinning wheel; the special-shaped rotating wheel takes a contact end with the cylindrical blank as a lower part, the structure of the special-shaped rotating wheel is a first cylinder, a second cylinder and a third cylinder from top to bottom in sequence, the first cylinder is connected with the second cylinder, the second cylinder is connected with the third cylinder, and the diameters of the circular sections of the three cylinders are the second cylinder, the third cylinder and the first cylinder from small to large in sequence; the height of the pair of spinning wheels is equal to that of the third cylinder of the special-shaped spinning wheel.
As a last definition: the special-shaped cross-section gluten is a reversed L-shaped gluten, and the flow spinning wheel adopts an arc spinning wheel; the pair of spinning wheels adopts a cylindrical spinning wheel; the special-shaped rotating wheel takes a contact end with the cylindrical blank as a lower part, the structure of the special-shaped rotating wheel is a first cylinder, a second cylinder and a third cylinder from top to bottom in sequence, the first cylinder is connected with the second cylinder, the second cylinder is connected with the third cylinder, and the diameters of the circular sections of the three cylinders are the second cylinder, the third cylinder and the first cylinder from small to large in sequence; the height of the pair of spinning wheels is greater than or equal to that of the special-shaped spinning wheel.
Due to the adoption of the scheme, compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a local loading and integral forming method of a special-shaped gluten cutting cylindrical piece, which reduces local thickness and thickens local part of a cylindrical blank by flow spinning, extrudes special-shaped gluten cutting by a special-shaped gluten cutting spinning wheel in a spinning way, and reduces extrusion load by the local loading and forming process combining the two processes, improves process flexibility, and leads the special-shaped gluten cutting cylindrical piece with large diameter and thin wall to be integrally formed by multi-pass matching, loading and coordinated deformation, and has simple process and convenient operation;
(2) the local loading integral forming method of the special-shaped gluten cutting cylindrical piece provided by the invention is simple in structure, convenient to operate and capable of forming ribs by spinning and extruding.
The invention is suitable for integral forming of the special-shaped section rib cylindrical piece.
Drawings
The invention is described in further detail below with reference to the figures and the embodiments.
FIG. 1 is a schematic view of step S1 according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of step S2 according to embodiment 1 of the present invention;
FIG. 3 is a front view of a flow-spinning roller according to an embodiment of the present invention;
FIG. 4 is a top view of a flow-spinning roller in accordance with an embodiment of the present invention;
FIG. 5 is a perspective view of a flow spinning roller in accordance with an embodiment of the present invention;
FIG. 6 is a front view of a spinning wheel in accordance with an embodiment of the present invention;
FIG. 7 is a top view of a spinning wheel in accordance with an embodiment of the present invention;
FIG. 8 is a perspective view of a spinning wheel in accordance with an embodiment of the present invention;
FIG. 9 is a front view of the profile wheel according to the embodiment of the present invention;
FIG. 10 is a top view of the profile wheel according to the embodiment of the present invention;
FIG. 11 is a perspective view of a profile wheel according to an embodiment of the present invention;
FIG. 12 is a schematic view showing the process of integrally forming the rib-shaped cross-section gluten cylindrical part according to example 1 of the present invention;
FIG. 13 is a diagram illustrating step S1 according to embodiment 2 of the present invention;
FIG. 14 is a diagram illustrating step S2 according to embodiment 2 of the present invention;
FIG. 15 is a schematic view showing the process of integrally forming the rib-shaped cross-section gluten cylindrical part according to example 3 of the present invention;
in the figure: 1. a tail jacking mechanism; 2. a cylindrical blank; 3. a core mold; 4. a flow spinning wheel; 5. A thick-wall region; 6. a thin-walled region; 7. a cylindrical blank of unequal thickness; 8. a first pair of spinning wheels; 9. a second pair of wheel spinning wheels; 10. a first profile wheel; 11. a second special-shaped rotating wheel; 12. t-shaped ribs; 13. the gamma-shaped rib.
Detailed Description
The present invention is further described with reference to the following examples, but it should be understood by those skilled in the art that the present invention is not limited to the following examples, and any modifications and equivalent changes based on the specific examples of the present invention are within the scope of the claims of the present invention.
A local loading integral forming method of a rib cylinder with a special-shaped section comprises the following steps, step S1 and step S2 are respectively shown in figures 1 and 2:
s1, fixing the cylindrical blank 2 on a spinning core mold 3 by a tail jacking mechanism 1, arranging flow spinning rollers 4 at two sides of the cylindrical blank 2, wherein the structure of the flow spinning rollers 4 is shown in figures 3-5, the number of the flow spinning rollers 4 is four, two flow spinning rollers 4 are arranged at one side of the cylindrical blank 2, the other two flow spinning rollers 4 are arranged at the other side of the cylindrical blank 2, and the spinning core mold 3 rotates and drives the cylindrical blank 2 to rotate;
s2, in the rotating process of the cylindrical blank 2, moving the flow spinning wheels 4 to the spinning positions of the areas to be deformed, wherein the spinning positions of the two flow spinning wheels 4 arranged on the same side of the cylindrical blank 2 are respectively positioned at the starting end and the tail end of the areas to be deformed on the side of the cylindrical blank 2, the flow spinning wheels 4 firstly feed and press the cylindrical blank 2 to a first preset thinning amount in the radial direction, then carry out axial feeding according to the preset axial feeding amount to form a thick-wall area 5 and a thin-wall area 6, the axial feeding directions of the two flow spinning wheels 4 arranged on the same side of the cylindrical blank 2 are opposite, and the flow spinning wheels 4 are spun out and moved to the areas which are not deformed;
s3, repeating the step S2 until all areas of the cylindrical blank 2 are deformed, and obtaining a cylindrical blank 7 with different thicknesses;
s4, replacing the flowing spinning roller 4 with a special-shaped gluten cutting spinning roller, wherein the special-shaped gluten cutting spinning roller comprises a pair of spinning rollers and a special-shaped spinning roller, the pair of spinning rollers comprises a first pair of spinning rollers 8 and a second pair of spinning rollers 9, and the special-shaped spinning roller comprises a first special-shaped spinning roller 10 and a second special-shaped spinning roller 11; a first pair of wheel spinning wheels 8 and a first special-shaped spinning wheel 10 are arranged on one side of the cylindrical blank 7 with unequal thickness and are positioned at two ends of the thick-wall area 5, a second pair of wheel spinning wheels 9 and a second special-shaped spinning wheel 11 are arranged on the other side of the cylindrical blank 7 with unequal thickness and are positioned at two ends of the thick-wall area 5, the first pair of wheel spinning wheels 8 and the first special-shaped spinning wheel 10 axially feed the thick-wall area 5 on one side of the cylindrical blank 7 with unequal thickness in opposite directions for extrusion molding, and the second pair of wheel spinning wheels 9 and the second special-shaped spinning wheel 11 axially feed the thick-wall area 5 on the other side of the cylindrical blank 7 with unequal thickness in opposite directions for extrusion molding to obtain the special-shaped cut gluten;
s5, replacing the special-shaped gluten cutting rotary extrusion spinning wheel with the flowing rotary spinning wheel 4, wherein the number of the flowing rotary spinning wheels 4 is four, two flowing rotary spinning wheels 4 are arranged on one side of the cylindrical blank 7 with different thicknesses, the other two flowing rotary spinning wheels 4 are arranged on the other side of the cylindrical blank 7 with different thicknesses, the spinning positions of the two flowing rotary spinning wheels 4 arranged on the same side of the cylindrical blank 7 with different thicknesses are respectively positioned at two ends of the thick-wall spinning area 5 on the side of the cylindrical blank 7 with different thicknesses, the flowing rotary spinning wheels 4 perform radial feeding on the thin-wall area 6 of the cylindrical blank 7 with different thicknesses to press the thin-wall area 6 to a second preset thinning amount, then perform axial feeding, the axial feeding directions all face the thin-wall area 6, and thin-wall area 6 of the cylindrical blank 7 with different thicknesses is thinned, so as to obtain the special-shaped gluten cutting cylindrical piece.
The special-shaped gluten cutting device in the embodiment is a T-shaped gluten cutting device 12, and the flow spinning wheel 4 adopts an arc spinning wheel; the pair of spinning wheels adopts a cylindrical spinning wheel, and the structure is shown in figures 6-8; the structure of the special-shaped rotating wheel is shown in fig. 9-11, the special-shaped rotating wheel takes a contact end with the cylindrical blank 2 as the lower part, the structure of the special-shaped rotating wheel sequentially comprises a first cylinder, a second cylinder and a third cylinder from top to bottom, the first cylinder is connected with the second cylinder, the second cylinder is connected with the third cylinder, and the diameters of the circular cross sections of the three cylinders sequentially comprise the second cylinder, the third cylinder and the first cylinder from small to large; the height of the pair of spinning wheels is equal to that of the third cylinder of the special-shaped spinning wheel.
The process schematic diagram of the integral forming of the rib cylinder with the special-shaped section of the embodiment is shown in fig. 12.
A local loading integral forming method of a rib cylinder with a special-shaped section comprises the following steps, step S1 and step S2 are respectively shown in figures 13 and 14:
s1, fixing the cylindrical blank 2 on a spinning core mould 3 by a tail jacking mechanism 1, arranging two flow spinning rollers 4 on two sides of the cylindrical blank 2, wherein the structure of the flow spinning rollers 4 is shown in figures 3-5, the number of the flow spinning rollers 4 is two, the two flow spinning rollers are respectively arranged on two sides of the cylindrical blank 2, and the spinning core mould 3 rotates and drives the cylindrical blank 2 to rotate;
s2, in the rotating process of the cylindrical blank 2, moving the flow spinning wheels 4 to the spinning positions of the areas to be deformed, wherein the spinning positions of the two flow spinning wheels 4 are respectively located at the starting ends of the areas to be deformed on the two sides of the cylindrical blank 2, the flow spinning wheels 4 firstly feed and press the cylindrical blank 2 to a first preset thinning amount in the radial direction, then axially feed towards the middle of the areas to be deformed according to the preset axial feeding amount, then spin out and move the flow spinning wheels 4 to the tail end of the areas to be deformed, the flow spinning wheels 4 firstly feed and press the cylindrical blank 2 to the first preset thinning amount in the radial direction, then axially feed towards the middle of the areas to be deformed according to the preset axial feeding amount to form a thick-wall area 5 and a thin-wall area 6, and spin out and move the flow spinning wheels 4 to the areas which are not deformed;
s3, repeating the step S2 until all areas of the cylindrical blank 2 are deformed, and obtaining a cylindrical blank 7 with different thicknesses;
s4, replacing the flowing spinning roller 4 with a special-shaped gluten cutting spinning roller, wherein the special-shaped gluten cutting spinning roller comprises a pair of spinning rollers and a special-shaped spinning roller, the pair of spinning rollers comprises a first pair of spinning rollers 8 and a second pair of spinning rollers 9, and the special-shaped spinning roller comprises a first special-shaped spinning roller 10 and a second special-shaped spinning roller 11; a first pair of wheel spinning wheels 8 and a first special-shaped spinning wheel 10 are arranged on one side of the cylindrical blank 7 with unequal thickness and are positioned at two ends of the thick-wall area 5, a second pair of wheel spinning wheels 9 and a second special-shaped spinning wheel 11 are arranged on the other side of the cylindrical blank 7 with unequal thickness and are positioned at two ends of the thick-wall area 5, the first pair of wheel spinning wheels 8 and the first special-shaped spinning wheel 10 axially feed the thick-wall area 5 on one side of the cylindrical blank 7 with unequal thickness in opposite directions for extrusion molding, and the second pair of wheel spinning wheels 9 and the second special-shaped spinning wheel 11 axially feed the thick-wall area 5 on the other side of the cylindrical blank 7 with unequal thickness in opposite directions for extrusion molding to obtain the special-shaped cut gluten;
s5, replacing the special-shaped gluten cutting rotary extrusion rotary wheel with the flowing rotary extrusion rotary wheel 4, wherein the number of the flowing rotary extrusion rotary wheel 4 is two, the two flowing rotary extrusion rotary wheels are respectively arranged at two sides of the cylindrical blank 7 with different thicknesses, the spinning positions of the two flowing rotary extrusion rotary wheels 4 are respectively positioned at one end of the thick-wall area 5 at two sides of the cylindrical blank 7 with different thicknesses, the flowing rotary extrusion rotary wheels 4 firstly feed the thin-wall area 6 of the cylindrical blank 7 with different thicknesses in the radial direction and press the thin-wall area to a second preset thinning amount, then feed the thin-wall area in the axial direction, the axial feeding direction faces the thin-wall area 6, and thin-wall area 6 of the cylindrical blank 7 with different thicknesses is thinned, so that the special-shaped gluten cutting cylindrical piece is obtained.
The special-shaped gluten cutting device in the embodiment is a T-shaped gluten cutting device 12, and the flow spinning wheel 4 adopts an arc spinning wheel; the pair of spinning wheels adopts a cylindrical spinning wheel, and the structure is shown in figures 6-8; the structure of the special-shaped rotating wheel is shown in fig. 9-11, the special-shaped rotating wheel takes a contact end with the cylindrical blank 2 as the lower part, the structure of the special-shaped rotating wheel sequentially comprises a first cylinder, a second cylinder and a third cylinder from top to bottom, the first cylinder is connected with the second cylinder, the second cylinder is connected with the third cylinder, and the diameters of the circular cross sections of the three cylinders sequentially comprise the second cylinder, the third cylinder and the first cylinder from small to large; the height of the pair of spinning wheels is equal to that of the third cylinder of the special-shaped spinning wheel.
The main technical solution of this embodiment is substantially the same as that of embodiment 1, and the features that are not explained in this embodiment adopt the explanations in embodiment 1, and are not described herein again. The present embodiment differs from embodiment 1 in that: the special-shaped truncated gluten is a gamma-shaped gluten 13, and the height of the pair of spinning wheels is greater than or equal to that of the special-shaped spinning wheels. The process of integrally forming the rib cylinder with the special-shaped section of the embodiment is schematically shown in fig. 15.
The main technical solution of this embodiment is substantially the same as that of embodiment 2, and the features that are not explained in this embodiment adopt the explanations in embodiment 2, and are not described again here. The difference between this embodiment and embodiment 2 is: the special-shaped truncated gluten is a gamma-shaped gluten 13, and the height of the pair of spinning wheels is greater than or equal to that of the special-shaped spinning wheels.
Claims (10)
1. A local loading integral forming method of a special-shaped section rib cylindrical part is characterized by comprising the following steps:
s1, fixing the cylindrical blank on a spinning core mould by a tail jacking mechanism, arranging flow spinning wheels at two sides of the cylindrical blank, and rotating the spinning core mould to drive the cylindrical blank to rotate;
s2, in the rotating process of the cylindrical blank, moving the flow spinning wheel to the spinning position of the area to be deformed, firstly carrying out radial feeding and pressing on the cylindrical blank by the flow spinning wheel to a first preset thinning amount, then carrying out axial feeding according to a preset axial feeding amount to form a thick-wall area and a thin-wall area, and then spinning out the flow spinning wheel and moving the flow spinning wheel to the area which is not deformed;
s3, repeating the step S2 until all areas of the cylindrical blank are deformed, and obtaining the cylindrical blank with different thicknesses;
s4, replacing the flowing rotary extrusion wheel with a special-shaped gluten cutting rotary extrusion wheel, and axially extruding and forming the thick-wall area of the cylindrical blank with different thicknesses by the special-shaped gluten cutting rotary extrusion wheel to obtain special-shaped gluten cutting;
s5, replacing the special-shaped gluten cutting rotary extrusion rotary wheel with a backflow rotary extrusion rotary wheel, and performing radial feeding and pressing to the thin-wall area of the cylindrical blank with different thicknesses by the rotary extrusion rotary wheel until the thin-wall area is reduced to a second preset thickness, and then performing axial feeding to thin the thin-wall area of the cylindrical blank with different thicknesses, thereby obtaining the special-shaped gluten cutting cylindrical piece.
2. The method of claim 1, wherein the number of the spinning rollers is four, two spinning rollers are disposed on one side of the cylindrical blank, and the other two spinning rollers are disposed on the other side of the cylindrical blank in step S1.
3. The method for integrally forming a tubular member with a deformed rib according to claim 2, wherein the spinning positions of the two flow spinning rollers disposed on the same side of the tubular blank in step S2 are located at the beginning and end of the region to be deformed on the side of the tubular blank; the axial feeding directions of the two flow spinning rollers arranged on the same side of the cylindrical blank are opposite.
4. The method for integrally forming a tubular member with a profiled cross-section by local loading according to claim 1, wherein the number of the flow spinning rollers in step S1 is two, and the two flow spinning rollers are respectively disposed on both sides of the tubular blank.
5. The local loading and integral forming method of the special-shaped section ribbed cylindrical part according to claim 4, wherein in step S2, the spinning positions of the two flow spinning wheels are respectively located at the starting ends of the regions to be deformed on the two sides of the cylindrical blank, the flow spinning wheels firstly feed and press the cylindrical blank to a first predetermined thinning amount in the radial direction, then feed the cylindrical blank in the axial direction towards the middle of the region to be deformed according to a predetermined axial feed amount, then spin out and move the flow spinning wheels to the tail end of the region to be deformed, the flow spinning wheels feed and press the cylindrical blank in the radial direction to a first predetermined thinning amount in the radial direction, and then feed the cylindrical blank in the axial direction towards the middle of the region to be deformed according to a predetermined axial feed amount, so as to form a thick-wall region and a thin-wall region.
6. The local loading integral forming method for the rib cylinder with the special-shaped section according to the claim 3 or 5, wherein the special-shaped rib rotary extrusion rotary wheel in the step S4 comprises a pair rotary wheel and a special-shaped rotary wheel, the pair rotary wheel comprises a first pair rotary wheel and a second pair rotary wheel, and the special-shaped rotary wheel comprises a first special-shaped rotary wheel and a second special-shaped rotary wheel; the first contra-wheel rotating wheel and the first special-shaped rotating wheel are arranged on one side of the cylindrical blank with different thicknesses and are positioned at two ends of the thick-wall area, and the second contra-wheel rotating wheel and the second special-shaped rotating wheel are arranged on the other side of the cylindrical blank with different thicknesses and are positioned at two ends of the thick-wall area; the process that the abnormal-shaped cut gluten rotary extrusion rotary wheel performs axial extrusion on the thick-wall area of the cylindrical blank with different thicknesses specifically comprises the steps that the first counter wheel rotary wheel and the first abnormal-shaped rotary wheel perform axial feeding in opposite directions, extrusion forming is performed, and the second counter wheel rotary wheel and the second abnormal-shaped rotary wheel perform axial feeding in opposite directions and extrusion forming is performed.
7. The local loading integral forming method of the special-shaped section ribbed cylindrical piece according to claim 6, wherein in step S5, the special-shaped section ribbed rotary extrusion spinning wheels are replaced by four flow spinning wheels, two flow spinning wheels are arranged on one side of the cylindrical blank with different thicknesses, the other two flow spinning wheels are arranged on the other side of the cylindrical blank with different thicknesses, the rotation starting positions of the two flow spinning wheels arranged on the same side of the cylindrical blank with different thicknesses are respectively positioned at two ends of the thick-wall area on the side of the cylindrical blank with different thicknesses, and the axial feeding direction faces the thin-wall area.
8. The local loading integral forming method of the special-shaped section rib cylindrical piece according to claim 6, wherein in the step S5, the special-shaped section rib rotary extrusion rotary wheels are replaced by two rotary extrusion rotary wheels, the two rotary extrusion rotary wheels are respectively arranged on two sides of the cylindrical blank with different thicknesses, the rotation starting positions of the two rotary extrusion rotary wheels are respectively positioned at one end of the thick-wall area on two sides of the cylindrical blank with different thicknesses, and the axial feeding directions of the two rotary extrusion rotary wheels face the thin-wall area.
9. The local loading integral forming method of the special-shaped section rib cylindrical piece according to the claim 7 or 8, characterized in that the special-shaped section rib is a T-shaped rib, and the flow spinning wheel adopts a circular arc spinning wheel; the pair of spinning wheels adopts a cylindrical spinning wheel; the special-shaped rotating wheel takes a contact end with the cylindrical blank as a lower part, the structure of the special-shaped rotating wheel is a first cylinder, a second cylinder and a third cylinder from top to bottom in sequence, the first cylinder is connected with the second cylinder, the second cylinder is connected with the third cylinder, and the diameters of the circular sections of the three cylinders are the second cylinder, the third cylinder and the first cylinder from small to large in sequence; the height of the pair of spinning wheels is equal to that of the third cylinder of the special-shaped spinning wheel.
10. The local loading integral forming method of the special-shaped section rib cylindrical piece according to the claim 7 or 8, characterized in that the special-shaped section rib is a T-shaped rib, and the flowing spinning wheel adopts a circular arc spinning wheel; the pair of spinning wheels adopts a cylindrical spinning wheel; the special-shaped rotating wheel takes a contact end with the cylindrical blank as a lower part, the structure of the special-shaped rotating wheel is a first cylinder, a second cylinder and a third cylinder from top to bottom in sequence, the first cylinder is connected with the second cylinder, the second cylinder is connected with the third cylinder, and the diameters of the circular sections of the three cylinders are the second cylinder, the third cylinder and the first cylinder from small to large in sequence; the height of the pair of spinning wheels is greater than or equal to that of the special-shaped spinning wheel.
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| CN (1) | CN113617915B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147117A (en) * | 2021-12-13 | 2022-03-08 | 西北工业大学 | Method for forming high-rib thin-wall cylindrical part through spinning by using heat-assisted multi-spinning wheel |
| CN114192647A (en) * | 2021-12-13 | 2022-03-18 | 西北工业大学 | Shearing forming method for annular outer rib cylindrical part |
| CN114603027A (en) * | 2022-03-09 | 2022-06-10 | 西北工业大学 | Multistage spinning wheel type follow-up constraint spinning forming method for cylindrical part with inner ribs |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334349B1 (en) * | 1999-09-28 | 2002-01-01 | Leico Gmbh & Co. Werkzeugmaschinenbau | Method for the manufacturing of a shaft with a larger diameter flange |
| JP2002126824A (en) * | 2000-10-23 | 2002-05-08 | Ricoh Co Ltd | Method for processing thin thickness core bar and method for processing fixing roller core bar for electrophotography |
| JP2005040841A (en) * | 2003-07-24 | 2005-02-17 | Yokohama Rubber Co Ltd:The | Method and device for manufacturing cylindrical formed-body |
| CN102974676A (en) * | 2012-12-18 | 2013-03-20 | 西安航天动力机械厂 | Method for pressing conical cover reinforcing ribs |
| CN103264263A (en) * | 2013-05-30 | 2013-08-28 | 中国航空工业集团公司北京航空制造工程研究所 | Process method for spinning tubular part in staggered mode |
| CN104028599A (en) * | 2014-06-06 | 2014-09-10 | 中国航天科技集团公司长征机械厂 | Corrugated pipe spinning forming method |
| CN104028607A (en) * | 2014-06-06 | 2014-09-10 | 中国航天科技集团公司长征机械厂 | Machining method for improving finish product quality of spinning thickness-reduced pipe |
| CN108127014A (en) * | 2017-12-06 | 2018-06-08 | 西安航天动力机械有限公司 | A kind of method away from reversed spinning wrong to wheel |
| CN109201830A (en) * | 2017-07-06 | 2019-01-15 | 中国航空制造技术研究院 | A method of prevent coupling barrel process from flange defect occur |
| CN109201834A (en) * | 2018-09-04 | 2019-01-15 | 西安交通大学 | A kind of combined shaping method of flow forming and double roller clamping spinning |
| CN110405040A (en) * | 2019-08-10 | 2019-11-05 | 西安长峰机电研究所 | A kind of reversed spin-on process of unimach outer step thin-wall barrel |
| CN209631903U (en) * | 2019-01-25 | 2019-11-15 | 上海玺欧机电科技有限公司 | Rotary radial feeding cnc spinning machine |
| CN110479841A (en) * | 2019-08-02 | 2019-11-22 | 武汉理工大学 | Manufacturing process is rolled in the large-scale horizontal high multidirectional rotation of muscle thin-walled ring multi-pass |
| CN110548797A (en) * | 2019-09-16 | 2019-12-10 | 芜湖西诺普汽车零部件科技有限公司 | Coreless spinning processing method for large-proportion multi-time reducing hollow shaft |
| CN111346963A (en) * | 2020-03-24 | 2020-06-30 | 长安大学 | Machining rotary wheel with longitudinal inner ribs for thin-wall cylinder and machining method based on machining rotary wheel |
-
2021
- 2021-07-29 CN CN202110862139.7A patent/CN113617915B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334349B1 (en) * | 1999-09-28 | 2002-01-01 | Leico Gmbh & Co. Werkzeugmaschinenbau | Method for the manufacturing of a shaft with a larger diameter flange |
| JP2002126824A (en) * | 2000-10-23 | 2002-05-08 | Ricoh Co Ltd | Method for processing thin thickness core bar and method for processing fixing roller core bar for electrophotography |
| JP2005040841A (en) * | 2003-07-24 | 2005-02-17 | Yokohama Rubber Co Ltd:The | Method and device for manufacturing cylindrical formed-body |
| CN102974676A (en) * | 2012-12-18 | 2013-03-20 | 西安航天动力机械厂 | Method for pressing conical cover reinforcing ribs |
| CN103264263A (en) * | 2013-05-30 | 2013-08-28 | 中国航空工业集团公司北京航空制造工程研究所 | Process method for spinning tubular part in staggered mode |
| CN104028607A (en) * | 2014-06-06 | 2014-09-10 | 中国航天科技集团公司长征机械厂 | Machining method for improving finish product quality of spinning thickness-reduced pipe |
| CN104028599A (en) * | 2014-06-06 | 2014-09-10 | 中国航天科技集团公司长征机械厂 | Corrugated pipe spinning forming method |
| CN109201830A (en) * | 2017-07-06 | 2019-01-15 | 中国航空制造技术研究院 | A method of prevent coupling barrel process from flange defect occur |
| CN108127014A (en) * | 2017-12-06 | 2018-06-08 | 西安航天动力机械有限公司 | A kind of method away from reversed spinning wrong to wheel |
| CN109201834A (en) * | 2018-09-04 | 2019-01-15 | 西安交通大学 | A kind of combined shaping method of flow forming and double roller clamping spinning |
| CN209631903U (en) * | 2019-01-25 | 2019-11-15 | 上海玺欧机电科技有限公司 | Rotary radial feeding cnc spinning machine |
| CN110479841A (en) * | 2019-08-02 | 2019-11-22 | 武汉理工大学 | Manufacturing process is rolled in the large-scale horizontal high multidirectional rotation of muscle thin-walled ring multi-pass |
| CN110405040A (en) * | 2019-08-10 | 2019-11-05 | 西安长峰机电研究所 | A kind of reversed spin-on process of unimach outer step thin-wall barrel |
| CN110548797A (en) * | 2019-09-16 | 2019-12-10 | 芜湖西诺普汽车零部件科技有限公司 | Coreless spinning processing method for large-proportion multi-time reducing hollow shaft |
| CN111346963A (en) * | 2020-03-24 | 2020-06-30 | 长安大学 | Machining rotary wheel with longitudinal inner ribs for thin-wall cylinder and machining method based on machining rotary wheel |
Non-Patent Citations (4)
| Title |
|---|
| 曾祥等: "《带内筋复杂薄壁件旋压成形研究进展》", 《精密成形工程》 * |
| 杨合等: "《铝合金大型复杂薄壁壳体旋压研究进展》", 《中国有色金属学报》 * |
| 詹梅等: "《大型复杂薄壁壳体多道次旋压过程中的壁厚优化》", 《塑性工程学报》 * |
| 詹梅等: "《带横向内筋特征构件外强旋压成形机理研究》", 《西北工业大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147117A (en) * | 2021-12-13 | 2022-03-08 | 西北工业大学 | Method for forming high-rib thin-wall cylindrical part through spinning by using heat-assisted multi-spinning wheel |
| CN114192647A (en) * | 2021-12-13 | 2022-03-18 | 西北工业大学 | Shearing forming method for annular outer rib cylindrical part |
| CN114192647B (en) * | 2021-12-13 | 2024-04-02 | 西北工业大学 | Shearing forming method for annular outer rib cylindrical part |
| CN114147117B (en) * | 2021-12-13 | 2024-04-02 | 西北工业大学 | Method for forming high-strength thin-wall cylindrical part by heat-assisted multi-roller spinning |
| CN114603027A (en) * | 2022-03-09 | 2022-06-10 | 西北工业大学 | Multistage spinning wheel type follow-up constraint spinning forming method for cylindrical part with inner ribs |
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