CN112474932A - Multifunctional aluminum profile stretch bending forming die and stretch bending forming process - Google Patents
Multifunctional aluminum profile stretch bending forming die and stretch bending forming process Download PDFInfo
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- CN112474932A CN112474932A CN202011271960.3A CN202011271960A CN112474932A CN 112474932 A CN112474932 A CN 112474932A CN 202011271960 A CN202011271960 A CN 202011271960A CN 112474932 A CN112474932 A CN 112474932A
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- 238000005452 bending Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding 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
- 239000003550 marker Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/04—Bending rods, profiles, or tubes over a movably-arranged forming menber
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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
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to a multifunctional aluminum profile stretch bending forming die and a stretch bending forming process, and the die comprises a tool bottom plate and a plurality of radian positioning block slideways which are fixedly installed on the tool bottom plate in a radial manner, wherein radian positioning blocks are slidably installed on the radian positioning block slideways, each radian positioning block comprises an arc positioning block and a fine adjustment positioning block, a bolt connecting hole is longitudinally formed in each fine adjustment positioning block, a height adjusting nut is slidably installed in each T-shaped groove on one side of each arc positioning block, which is opposite to each fine adjustment positioning block, a screw rod is arranged in each fine adjustment positioning block in a penetrating manner, a radian fine adjustment nut corresponding to the height adjusting nut is installed on the screw rod on one side of each fine adjustment positioning block, which is opposite to each arc positioning block in a threaded manner, and a fastening nut is installed, The problems of no universality, high tooling cost, large workload of manual installation and disassembly and easy influence on tooling precision are solved.
Description
Technical Field
The invention belongs to the field of aluminum alloy profile deep processing, relates to a multifunctional aluminum profile stretch bending forming die and a stretch bending forming process, and particularly relates to a forming die and a stretch bending forming process for realizing high-precision, variable-curvature and wall-thickness stretch bending of an aviation large-sized high-strength angle section.
Background
The aluminum alloy has the characteristics of light weight and strong formability, is widely applied to the fields of aviation, aerospace, automobiles, industry and the like, and is an indispensable mainstream metal material in the current society. In the aspect of aluminum alloy deep processing, the section bending process occupies an important proportion in the field of aluminum alloy section deep processing, the tonnage of numerical control bending equipment is gradually increased, the process level is gradually improved, and the social and market demands of high-strength aluminum alloy bent section products are huge.
The aluminum alloy bending process mainly comprises stretch bending forming, roll bending forming and press bending forming, each process has unique advantages, and the stretch bending forming process is realized by matching a section numerical control stretch bender with a stretch bending die and a jaw. The numerical control stretch bender is schematically shown in figure 1, a stretch bending tool and a jaw are sequentially installed on the numerical control stretch bender before machining, stretching cylinders at two ends are matched with the jaw to clamp and pre-stretch an aluminum alloy section, after preliminary pre-stretching, an equipment rotating arm rotates at a constant speed to enable the aluminum alloy section to coat the stretch bending tool so as to obtain a required radian, after the bending process is finished, corresponding supplementary stretching is carried out according to product requirements, and a part is unloaded after stretch bending machining is finished so as to obtain a required radian section product.
The prior art has the following defects:
firstly, most of the existing stretch-bending tools are special tools, the existing stretch-bending tools are not universal, and aiming at the production of high-precision, small-batch and various-radian aluminum alloy sections, a plurality of sets of stretch-bending tools need to be designed according to the requirements of different radians and wall thicknesses of products or variable curvature and variable wall thickness, the reserved design difficulty of tool resilience is large due to different section marks, a plurality of sets of different radian tools need to be designed for trial production and exploration of new products, and the cost of raw materials and tools is extremely high;
and secondly, when the aluminum alloy sections with different radians are subjected to stretch bending processing, the traditional stretch bending tool needs frequent disassembly and replacement due to fixed radian, and the precision of the tool is easily influenced, so that the radian of a product is out of tolerance. The time length of processing is prolonged due to repeated installation and disassembly of the tool, and the influence of human factors in the process is large, so that the tool is difficult to control in a standardized manner.
Disclosure of Invention
In view of the above, the invention provides a multi-curvature-specification, variable-wall-thickness, high-strength and high-precision-angle aluminum profile stretch bending forming die and a stretch bending forming process, which aim to solve the problems that the existing high-strength aluminum alloy angle aluminum profile stretch bending tool is simple in design, free of universality, high in tool cost, large in workload of manual installation and disassembly and easy to influence tool precision, reduce the tool cost, optimize the tool design, reduce the labor cost, reduce the influence of manual factors on the processing process and improve the processing efficiency and the final yield.
In order to achieve the purpose, the invention provides a multifunctional aluminum profile stretch bending forming die which comprises a tool bottom plate and a plurality of radian positioning block slideways which are fixedly arranged on the tool bottom plate in a radial shape, wherein the radian positioning blocks are slidably arranged on the radian positioning block slideways and comprise circular arc positioning blocks and fine adjustment positioning blocks, bolt connecting holes are longitudinally formed in the fine adjustment positioning blocks, the fine adjustment positioning block is fixed on the radian positioning block slide way by inserting a bolt fastener into the bolt connecting hole, T-shaped grooves are formed in two ends of one side, opposite to the fine adjustment positioning block, of the arc positioning block, a height adjusting nut is slidably mounted in each T-shaped groove, a screw rod penetrates through the fine adjustment positioning block, a radian fine adjustment nut corresponding to the height adjusting nut is mounted on the screw rod on one side, opposite to the arc positioning block, of the fine adjustment positioning block in a threaded manner, and a fastening nut is mounted on the screw rod on one side, far away from the.
Furthermore, more than 2 positioning mounting holes are formed in the tool bottom plate, and bolt fasteners are inserted into the positioning mounting holes to fix the tool bottom plate on the workbench of the stretch bender.
Further, radian positioning scale marks are arranged on the radian positioning block slide way, and the radian of the radian positioning block can be adjusted through the radian positioning scale marks.
Further, the upper end of the tool bottom plate is fixedly provided with pre-stretching strain control scale marks for controlling pre-stretching amount in the aluminum profile centering and stretch bending process.
A stretch bending forming process of a multifunctional aluminum profile stretch bending forming die comprises the following steps:
A. inserting a proper bolt fastener into the positioning mounting hole to fix the tool bottom plate on the workbench of the stretch bender for adjustment and fastening;
B. the fine adjustment positioning block determines the position through radian positioning scale marks on a radian positioning block slideway, and is fixedly connected with the tool bottom plate through inserting a proper bolt fastener into the bolt connecting hole;
C. moving the arc-shaped positioning block to a proper position according to the wall thicknesses of different arc sections of the part, adjusting the height of the arc-shaped positioning block according to the thicknesses of different radians of the part, and adjusting the position of a height adjusting nut on the arc-shaped positioning block to enable the height adjusting nut to be opposite to a radian fine-adjusting nut on a fine-adjusting positioning block;
D. adjusting the radian fine-tuning nut according to the radians of different sections of the part and the required resilience amount to enable the gap between the arc-shaped positioning block and the fine-tuning positioning block to meet the fine-tuning final radian, and fastening by adopting a fastening nut;
E. after the curvature radian shape of the stretch bending forming die is determined, the section to be stretch bent is placed on the outer side of the stretch bending forming die, and stretch bending processing is carried out by adopting a processing technology matched with the stretch bending forming die.
Further, the stretch bending process of the section to be stretch bent in the step E comprises the following steps: firstly, installing a stretch bending forming die on a numerical control stretch bending machine, and adjusting and fixing the height of a tool according to the jaw of a stretching cylinder and the requirement of a section to be stretch bent; after the tool is installed, a device sensor is adopted to collect a numerical control program, collected data are input into the device, and the device is machined after trial run test is correct; when the section is arranged on a machine, the jaw is adopted to clamp and fix two ends of the section, the position of the stretching cylinder is adjusted to enable the section to be in side line contact with the tool, and the section to be bent is in a processing state to be bent.
The invention has the beneficial effects that:
1. the invention discloses a multifunctional aluminum profile stretch bending forming die which is an aluminum profile stretch bending tool capable of designing multi-curvature specifications, high strength and high precision angle, can realize rapid adjustment of radian and wall thickness, and is suitable for stretch bending processing of multi-curvature and variable-wall-thickness high-strength aluminum alloy angle aluminum profiles. The problem that a new product needs a plurality of sets of tools with different curvature specifications to carry out process trial production and exploration is solved, and the production and trial production costs are reduced.
2. The multifunctional aluminum profile stretch bending forming die disclosed by the invention can make corresponding curvature adjustment according to different radian shapes of products, replaces the traditional special tool, avoids the influence on the tool precision due to frequent disassembly and assembly, effectively reduces the time cost and the influence of human factors, facilitates the standardized control of the production process, and improves the final yield of the products. Meanwhile, a corresponding stretch bending process scheme is determined by combining tool design.
3. The invention discloses a multifunctional aluminum profile stretch bending forming die, which aims at the problems that the existing high-strength aluminum alloy angle aluminum profile stretch bending tool is simple in design, free of universality, high in tool cost, large in workload of manual installation and disassembly, easy to influence tool precision and the like.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a conventional numerical control stretch bender;
FIG. 2 is a schematic structural view of the multifunctional aluminum profile stretch bending forming die of the invention;
fig. 3 is a schematic view of a radian positioning block slideway structure in the multifunctional aluminum profile stretch bending forming die of the invention;
fig. 4 is a schematic structural view of a radian positioning block in the multifunctional aluminum profile stretch-bending forming die of the invention;
FIG. 5 is a sectional view of a profile to be processed according to an embodiment of the present invention.
Reference numerals: the tool comprises a tool bottom plate 1, a radian positioning block 2, a pre-stretching strain control scale mark 3, a radian positioning scale mark 4, a radian positioning block slide way 5, a positioning and mounting hole 6, a fine adjustment positioning block 7, a bolt connecting hole 8, an arc positioning block 9, a height adjusting nut 10, a radian fine adjustment nut 11 and a fastening nut 12.
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 should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 2-5, the multifunctional aluminum profile stretch bending forming die comprises a tooling bottom plate 1 fixed on a workbench of a stretch bending machine, wherein 4 positioning mounting holes 6 are formed in the tooling bottom plate 1, and the tooling bottom plate is fixed on the workbench of the stretch bending machine by inserting proper bolt fasteners into the positioning mounting holes.
The tool bottom plate 1 is fixedly provided with a plurality of radian positioning block slideways 5 which are radial, the radian positioning blocks 2 are slidably mounted on the radian positioning block slideways 5, each radian positioning block 2 comprises an arc positioning block 9 and a fine adjustment positioning block 7, the fine adjustment positioning blocks 7 are longitudinally provided with bolt connecting holes 8, and the fine adjustment positioning blocks are fixed on the radian positioning block slideways 5 by inserting suitable bolt fasteners into the bolt connecting holes 8. T-shaped grooves are formed in two ends of one side, opposite to the fine adjustment positioning block 7, of the circular arc positioning block 9, two height adjusting nuts 10 are slidably mounted in each T-shaped groove, four screw rods penetrate through the fine adjustment positioning block 7, a radian fine adjustment nut 11 is mounted on the screw rod on one side, opposite to the circular arc positioning block 9, of the fine adjustment positioning block through threads, and a fastening nut 12 is mounted on the screw rod on one side, far away from the circular arc positioning block, of the fine adjustment positioning block.
Radian positioning scale marks 4 are arranged on the radian positioning block slide ways 5, and the radian of the radian positioning block can be adjusted through the radian positioning scale marks 4. The upper end of the tooling bottom plate is fixedly provided with pre-stretching strain control scale marks 3 for controlling the pre-stretching amount in the centering and stretch bending process of the aluminum profile.
The stretch bending forming process of the multifunctional aluminum profile stretch bending forming die comprises the following steps:
A. inserting a proper bolt fastener into the positioning mounting hole to fix the tool bottom plate on the workbench of the stretch bender for adjustment and fastening;
B. the fine adjustment positioning block determines the position through radian positioning scale marks on a radian positioning block slideway, and is fixedly connected with the tool bottom plate through inserting a proper bolt fastener into the bolt connecting hole;
C. moving the arc-shaped positioning block to a proper position according to the wall thicknesses of different arc sections of the part, adjusting the height of the arc-shaped positioning block according to the thicknesses of different radians of the part, and adjusting the position of a height adjusting nut on the arc-shaped positioning block to enable the height adjusting nut to be opposite to a radian fine-adjusting nut on a fine-adjusting positioning block;
D. adjusting the radian fine-tuning nut according to the radians of different sections of the part and the required resilience amount to enable the gap between the arc-shaped positioning block and the fine-tuning positioning block to meet the fine-tuning final radian, and fastening by adopting a fastening nut;
E. after the curvature radian shape of the stretch bending forming die is determined, the aluminum profile to be stretch bent is placed on the outer side of the stretch bending forming die, and stretch bending processing is carried out by adopting a processing technology matched with the stretch bending forming die.
Firstly, installing a stretch bending forming die on a numerical control stretch bending machine, and adjusting and fixing the height of a tool according to the jaw of a stretching cylinder and the requirement of a section to be processed; after the tool is installed, a device sensor is adopted to collect a numerical control program, and collected data are input into the device and can be subjected to machining after trial run tests are correct; when the section is arranged on a machine, the jaw is adopted to clamp and fix two ends of the section, and the position of the stretching cylinder is adjusted to enable the section to be in side line contact with the tool, namely, the section is in a processing state capable of being bent.
The stretch bending comprises three stages, namely a pre-stretching stage, marking the initial scale position of the tool bottom plate and the initial position of the section by using a marker pen, stopping stretching when the section and the tool bottom plate are stretched to the position above 1% of the deformation of the scale, and keeping the section and the tool bottom plate to be fully deformed for more than 10 seconds.
And secondly, a coating stage, namely adopting variable force coating in the material bending coating stage, fitting a statistical function according to a whole-process tensile curve of the material, and setting the stress to be larger than the stress under the corresponding strain function by a program. So that the bending inner layer metal is in a tensile stress state in the cladding stage of the material to achieve full deformation.
And finally, performing secondary stretching, wherein the radian shapes of the two sides of the stretching cylinder are close to the radian shapes of the two sides of the stretching cylinder when the coating is finished through controlling the strain.
Examples
The tool designed and developed by the patent and the matched processing technology thereof are used for stretch bending production of large-scale high-precision aviation extruded structural parts, the product has the characteristics of large curvature radius, high precision requirement and the like, the processing difficulty and the technical barrier are high, and the section of a section to be processed is shown in figure 5.
Firstly, on being fixed in stretch bending equipment platform with the frock bottom plate, according to the required radian requirement of part, with the radian locating piece, align through the required scale of frock bottom plate to adopt bolted connection in required position. Then adjusting the slide rails in the fine adjustment positioning block and the arc positioning block to enable the bolt end of the height adjusting nut on the arc positioning block to be matched with the bolt end of the radian fine adjustment nut on the fine adjustment positioning block, and adjusting the position of the bolt on the slide rail according to the thickness of a part and fastening the bolt by using the fastening nut on the fine adjustment positioning block. And finally, adjusting the fastening nut to perform radian fine adjustment through the radian of the part and the preset resilience amount to enable the gap between the fine adjustment positioning block and the arc positioning block to meet the required requirement, and fixing and fastening by adopting the fastening nut.
After the curvature radian appearance of the stretch bending tool is determined, the stretch bending tool is installed on a numerical control stretch bending machine, and the height of the fixed tool is adjusted according to the jaw of a stretching cylinder and the requirement of a section to be processed; collecting a numerical control program by using an equipment sensor, realizing the profile recording of the stretch bending tool, inputting collected data into equipment to generate the numerical control program, and fixing the section to be processed on a machine after an empty machine trial operation test is correct; clamping and fixing two ends of the section to be processed by adopting stretching cylinders at two ends of a numerical control stretch bender and matching jaws, marking the initial position of the material and the corresponding initial scale position of a tool after adjusting the position of the stretching cylinders to enable the section to be in a stretch bending state, and performing pre-stretching; when the required deformation is reached, the state is kept for more than 10s, and the bending coating is started; the stretching cylinder rotates the bending section to enable the bending section to wrap the stretch bending tool, and the stretching cylinder stops rotating after reaching a bending limit position; performing a supplementary drawing process according to the actual condition of the section to be processed; unloading the section after finishing the compensation drawing, finishing the stretch bending processing of the section, and finally bending a finished product.
Compared with a traditional special stretch bending tool and a traditional special stretch bending processing scheme, the stretch bending forming process has the advantages that when products produced by the process meet the requirements of design drawings, the process groping cost and the tool manufacturing cost in the early stage are reduced, and considerable practical benefits are brought to producers.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (6)
1. A multifunctional aluminum profile stretch bending forming die is characterized by comprising a tool bottom plate and a plurality of radian positioning block slideways which are fixedly arranged on the tool bottom plate in a radial shape, wherein radian positioning blocks are slidably arranged on the radian positioning block slideways and comprise arc positioning blocks and fine adjustment positioning blocks, bolt connecting holes are longitudinally formed in the fine adjustment positioning blocks, the fine adjustment positioning block is fixed on the radian positioning block slide way by inserting a bolt fastener into the bolt connecting hole, T-shaped grooves are formed in two ends of one side, opposite to the fine adjustment positioning block, of the arc positioning block, a height adjusting nut is slidably mounted in each T-shaped groove, a screw rod penetrates through the fine adjustment positioning block, a radian fine adjustment nut corresponding to the height adjusting nut is mounted on the screw rod on one side, opposite to the arc positioning block, of the fine adjustment positioning block in a threaded manner, and a fastening nut is mounted on the screw rod on one side, far away from the.
2. The multifunctional aluminum profile stretch bending forming die as claimed in claim 1, wherein more than 2 positioning mounting holes are formed in the tooling bottom plate, and the tooling bottom plate is fixed on a workbench of the stretch bending machine by inserting bolt fasteners into the positioning mounting holes.
3. The multifunctional aluminum profile stretch bending forming die as claimed in claim 2, wherein the radian positioning block slide way is provided with radian positioning scale marks, and the radian of the radian positioning block can be adjusted through the radian positioning scale marks.
4. The multifunctional aluminum profile stretch-bending forming die as claimed in claim 3, wherein pre-stretching strain control scale marks are fixedly mounted at the upper end of the tooling bottom plate and used for pre-stretching amount control in aluminum profile centering and stretch-bending processes.
5. A stretch bending forming process of a multifunctional aluminum profile stretch bending forming die is characterized by comprising the following steps:
A. inserting a proper bolt fastener into the positioning mounting hole to fix the tool bottom plate on the workbench of the stretch bender for adjustment and fastening;
B. the fine adjustment positioning block determines the position through radian positioning scale marks on a radian positioning block slideway, and is fixedly connected with the tool bottom plate through inserting a proper bolt fastener into the bolt connecting hole;
C. moving the arc-shaped positioning block to a proper position according to the wall thicknesses of different arc sections of the part, adjusting the height of the arc-shaped positioning block according to the thicknesses of different radians of the part, and adjusting the position of a height adjusting nut on the arc-shaped positioning block to enable the height adjusting nut to be opposite to a radian fine-adjusting nut on a fine-adjusting positioning block;
D. adjusting the radian fine-tuning nut according to the radians of different sections of the part and the required resilience amount to enable the gap between the arc-shaped positioning block and the fine-tuning positioning block to meet the fine-tuning final radian, and fastening by adopting a fastening nut;
E. after the curvature radian shape of the stretch bending forming die is determined, the section to be stretch bent is placed on the outer side of the stretch bending forming die, and stretch bending processing is carried out by adopting a processing technology matched with the stretch bending forming die.
6. The stretch-bending forming process of the multifunctional aluminum profile stretch-bending forming die as claimed in claim 5, wherein the stretch-bending process of the profile to be stretch-bent in the step E is as follows: firstly, installing a stretch bending forming die on a numerical control stretch bending machine, and adjusting and fixing the height of a tool according to the jaw of a stretching cylinder and the requirement of a section to be stretch bent; after the tool is installed, a device sensor is adopted to collect a numerical control program, collected data are input into the device, and the device is machined after trial run test is correct; when the section is arranged on a machine, the jaw is adopted to clamp and fix two ends of the section, the position of the stretching cylinder is adjusted to enable the section to be in side line contact with the tool, and the section to be bent is in a processing state to be bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271960.3A CN112474932A (en) | 2020-11-13 | 2020-11-13 | Multifunctional aluminum profile stretch bending forming die and stretch bending forming process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271960.3A CN112474932A (en) | 2020-11-13 | 2020-11-13 | Multifunctional aluminum profile stretch bending forming die and stretch bending forming process |
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| CN112474932A true CN112474932A (en) | 2021-03-12 |
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| CN107695145A (en) * | 2017-10-11 | 2018-02-16 | 吉林大学 | The adjustable rail vehicle pillar group component stretch wrap forming mould in type face |
| CN108311578A (en) * | 2018-05-08 | 2018-07-24 | 长春工业大学 | A kind of tension and compression convolution section flexible three-dimensional bending forming technology and device |
| CN208787266U (en) * | 2018-09-19 | 2019-04-26 | 宁波安纳杰模塑科技有限公司 | The stretch bending module of bending machine |
-
2020
- 2020-11-13 CN CN202011271960.3A patent/CN112474932A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736850A (en) * | 2013-12-22 | 2014-04-23 | 吉林大学 | Six-freedom-degree control blocking type flexible section bar three-dimensional stretch bending die and forming process |
| CN104226751A (en) * | 2014-07-30 | 2014-12-24 | 西北工业大学 | Flexible stretch-bending and forming device for airplane sectional material |
| CN205309025U (en) * | 2015-11-23 | 2016-06-15 | 云南昆船第一机械有限公司 | General combination presser device of section bar stretch bending |
| CN106583512A (en) * | 2017-01-23 | 2017-04-26 | 佛山市德琞科技有限公司 | Escalator guide rail machining device and method |
| CN107695145A (en) * | 2017-10-11 | 2018-02-16 | 吉林大学 | The adjustable rail vehicle pillar group component stretch wrap forming mould in type face |
| CN108311578A (en) * | 2018-05-08 | 2018-07-24 | 长春工业大学 | A kind of tension and compression convolution section flexible three-dimensional bending forming technology and device |
| CN208787266U (en) * | 2018-09-19 | 2019-04-26 | 宁波安纳杰模塑科技有限公司 | The stretch bending module of bending machine |
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Application publication date: 20210312 |