CN114042779B - Integral extrusion forming aluminum alloy cylinder flattening process with rib plates - Google Patents
Integral extrusion forming aluminum alloy cylinder flattening process with rib plates Download PDFInfo
- Publication number
- CN114042779B CN114042779B CN202111447478.5A CN202111447478A CN114042779B CN 114042779 B CN114042779 B CN 114042779B CN 202111447478 A CN202111447478 A CN 202111447478A CN 114042779 B CN114042779 B CN 114042779B
- Authority
- CN
- China
- Prior art keywords
- straightening
- aluminum alloy
- roller
- alloy cylinder
- flattening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
-
- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/05—Stretching combined with rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Forging (AREA)
Abstract
The utility model provides an integral extrusion forming aluminum alloy cylinder flattening process with rib plates, which comprises the following steps: splitting, flattening, roller type primary straightening, stretching straightening, roller type middle straightening and roller type fine straightening. According to the utility model, the integrally extruded aluminum alloy cylinder with the rib plates is directly flattened into the aluminum alloy section, the defect that the strength of the overall structure is greatly reduced due to the use of welding and other processes in the manufacturing of the aluminum alloy section is avoided, and the aluminum alloy section has great improvement in the aspects of material utilization rate and mechanical properties after molding compared with the section produced by integral milling, so that the integral quality of high-performance equipment can be ensured.
Description
Technical Field
The utility model relates to the technical field of aluminum alloy section production, in particular to a flattening process of an aluminum alloy cylinder with a rib plate, which is integrally extruded and formed.
Background
The integrally extruded aluminum alloy cylinder flattened section bar with the rib plates is a hull material of a special ship and is a base material of a high-end ship in China. At present, the materials are basically imported from abroad, and although the aluminum alloy cylinder with the rib plates can be integrally extruded in China, the flattening process is not completely mastered, so that great development obstruction is received in the manufacturing field of special ships in China.
At present, the manufacturing methods of the ribbed aluminum profile in China basically have two types: firstly, splicing and welding a plurality of aluminum alloy extrusion strip rib plate strips into an integral wide aluminum alloy section with rib plates in a welding mode; and secondly, manufacturing by an integral milling forming method. The reinforced aluminum profile manufactured by the welding method has uneven strength of the whole welded structure due to the existence of a plurality of welding seams, and cannot meet the requirements of advanced ships and spacecrafts; the integral milling forming method reduces the utilization rate of raw materials, and the generated residual stress increases the distortion tendency of the profile, so that the integral quality of high-performance equipment is affected.
The utility model patent with application number 201811180051.1 and application number 201910389433.3 and application number 201811180051.1 discloses a cylindrical sample piece for preparing integral extrusion molding, and then cutting the cylindrical sample piece flat, but how to cut the cylindrical sample piece flat is not disclosed.
Although the China patent with the application number of 201820109067.2 and the name of "aluminum alloy forming correction device" gives an aluminum alloy forming correction device, the method only aims at straightening an aluminum plate and cannot flatten an aluminum alloy cylinder with a rib plate.
Disclosure of Invention
According to the technical problems, the aluminum alloy cylinder flattening process with the rib plates is integrally extruded and formed.
The utility model adopts the following technical means:
an integral extrusion-formed aluminum alloy cylinder flattening process with rib plates, which comprises the following steps:
splitting, namely splitting the integrally extruded aluminum alloy cylinder with the rib plates along the axial direction of the aluminum alloy cylinder, and leaving a slit extending along the axial direction of the aluminum alloy cylinder on the aluminum alloy cylinder after splitting;
flattening: flattening the split aluminum alloy cylinder at the joint, wherein the aluminum alloy cylinder is deformed into a circular arc shape from the cylinder;
roller type primary straightening: feeding the flattened circular arc aluminum alloy section into a roller type primary straightening machine in a rib plate upward state for primary straightening; the roller type preliminary straightening machine comprises two first upper straightening devices and first lower straightening devices which are arranged side by side, wherein the first upper straightening devices are provided with first upper roller shafts, a plurality of first upper straightening roller rings are arranged on the first upper roller shafts, two ends of each first upper roller shaft are connected with first upper roller shaft bearing seats, and the first upper roller shaft bearing seats are connected with first opening degree adjusting devices for driving the first upper roller shaft bearing seats to move up and down; the first lower straightening device is provided with a first lower roll shaft, a plurality of first lower straightening roll rings are arranged on the first lower roll shaft, and two ends of the first lower roll shaft are connected with first lower roll shaft bearing seats; the rib plate of the aluminum alloy section is positioned between two adjacent first upper straightening roller rings for straightening, and the step is performed for a plurality of passes;
stretching and straightening: stretching the primarily straightened aluminum alloy section along the axial direction of the aluminum alloy section;
straightening in a roller: loading the stretched aluminum alloy section into a straightening backing plate in a state that the rib plates face downwards, covering the straightening backing plate on the side of the aluminum alloy section without the rib plates, and feeding the straightening backing plate with the aluminum alloy section into a roller type middle straightening machine for straightening, wherein the roller type middle straightening machine is provided with a second upper roller system and a second lower roller system, the second upper roller system is provided with a plurality of second upper straightening rollers which are arranged along the axial direction of the aluminum alloy section, the second lower roller system is provided with a plurality of second lower straightening rollers which are arranged along the axial direction of the aluminum alloy section, and the second upper straightening rollers and the second lower straightening rollers are staggered; the aluminum alloy section passes between the second upper roller system and the second lower roller system, and is flattened under the action of the second upper roller system and the second lower roller system, and the step is carried out for a plurality of passes.
Roller type fine straightening: feeding the aluminum alloy section subjected to middle straightening into a roller type fine straightening machine in a rib plate downward state for straightening, wherein the roller type fine straightening machine comprises a third upper straightening device and a third lower straightening device, the third upper straightening device is provided with a third upper roller shaft, a plurality of third upper straightening roller rings are arranged on the third upper roller shaft, two ends of the third upper roller shaft are connected with third upper roller shaft bearing seats, and the third upper roller shaft bearing seats are connected with third opening degree adjusting devices for driving the third upper roller shaft bearing seats to move up and down; the third lower straightening device is provided with a third lower roll shaft, a plurality of third lower straightening roll rings are arranged on the third lower roll shaft, and two ends of the third lower roll shaft are connected with third lower roll shaft bearing seats; the rib plate of the aluminum alloy section is positioned between two adjacent third upper straightening roller rings for straightening, and the step can be performed for a plurality of passes until the aluminum alloy section is in a flat plate shape.
The section of the rib plate is T-shaped, L-shaped or I-shaped.
In the splitting step, a splitting saw is adopted, and the splitting saw is provided with a splitting saw blade which moves along the axial direction of the aluminum alloy cylinder and feeds along the radial direction, and the splitting saw blade completes the splitting of the aluminum alloy cylinder after moving from one end of the aluminum alloy cylinder to the other end of the aluminum alloy cylinder along the axial direction.
The flattening machine is adopted in the flattening step and comprises a plurality of swing arm devices which are distributed along the axial direction of the aluminum alloy cylinder, the swing arm devices comprise swing arms which are symmetrically arranged on two sides of the aluminum alloy cylinder, the tail ends of the swing arms are pointed, the tail ends of the swing arms are inserted into the cutting slits, and in the unfolding process, the tail ends of the swing arms swing obliquely downwards to unfold the aluminum alloy cylinder into an arc shape.
In the roller type fine straightening machine, the bottom of the third lower straightening device is connected with an adjusting gasket for adjusting the height of the third lower straightening device.
And in the stretching and straightening step, a stretcher is adopted, and two ends of the primarily straightened aluminum alloy section in the axial direction are clamped on the stretcher for stretching.
Compared with the prior art, the utility model has the following advantages:
according to the integral extrusion-molded aluminum alloy cylinder flattening process with the rib plates, which is provided by the utility model, the integral extrusion-molded aluminum alloy cylinder with the rib plates is directly flattened into the aluminum alloy section, so that the defect that the integral structural strength of the aluminum alloy section is greatly reduced due to the welding and other processes in the production process is avoided, the material utilization rate and the mechanical property after molding are greatly improved compared with those of the section produced by integral milling, and the integral quality of high-performance equipment can be ensured.
Based on the reasons, the utility model can be widely popularized in the fields of aluminum alloy section production and the like.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a flattening process of an integrally extruded aluminum alloy cylinder with rib plates in an embodiment of the utility model.
FIG. 2 is a side view of a roll-type primary straightener in an embodiment of the present utility model.
FIG. 3 is a front view of a roll type primary straightener in accordance with an embodiment of the present utility model.
FIG. 4 is a schematic view showing the structures of the first upper straightener and the first lower straightener in the embodiment of the present utility model.
FIG. 5 is a schematic view of a roll type medium straightener in an embodiment of the present utility model.
FIG. 6 is a side view of a roll fine straightener in an embodiment of the present utility model.
FIG. 7 is a front view of a roll type fine straightener in an embodiment of the present utility model.
FIG. 8 is a schematic view showing the construction of a third upper straightener and a third lower straightener in accordance with an embodiment of the present utility model.
FIG. 9 is a schematic diagram of a flattening machine in accordance with an embodiment of the present utility model.
Fig. 10 is a schematic structural diagram of a swing arm device according to an embodiment of the present utility model.
Fig. 11 is a schematic view of a swing arm apparatus according to an embodiment of the present utility model when the swing arm apparatus is unfolded.
In the figure: 1. an aluminum alloy cylinder/aluminum alloy profile; 2. splitting and sawing; 3. a flattening machine; 301. a forearm; 302. a small hydraulic cylinder; 303. a large arm; 304. a large hydraulic cylinder; 305. a frame; 306. a base; 307. a connecting beam; 4. a roller type primary straightener; 401. a first upper roller shaft; 402. a first upper straightening roll ring; 403. a first upper roll shaft bearing block; 404. a hydraulic cylinder; 405. a first lower roll shaft; 406. a first lower straightening roll ring; 407. a first lower roll shaft bearing block; 408. a first limiting mechanism; 409. a first long key; 410. a first limiting mechanism; 5. a stretcher; 6. straightening the backing plate; 7. a roll-type medium straightener; 701. a second upper straightening roll; 702. a second lower straightening roll; 8. a roller type fine straightening machine; 801. a third upper roll shaft; 802. a third upper straightening roller ring; 803. a third upper roll shaft bearing seat; 804. a speed reducing motor; 805. a transmission shaft; 806. a worm gear lifter; 807. a third lower roll shaft; 808. a first lower straightening roll ring; 809. a third lower roll shaft bearing seat; 810. adjusting the gasket; 811. a third long key; 812. and a third limiting mechanism.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
As shown in fig. 1 to 11, a flattening process for integrally extrusion-molded aluminum alloy cylinders with rib plates comprises the following steps:
splitting: the integrally extruded aluminum alloy cylinder 1 with the rib plates is cut along the axial direction, and the cross section of the rib plates is T-shaped, L-shaped or I-shaped. In this embodiment, a "T" shape is used. Leaving a slit on the aluminum alloy cylinder 1 extending along the axial direction of the aluminum alloy cylinder after cutting; in this embodiment, the splitting saw 2 is used for splitting, and the splitting saw 2 has a splitting saw blade that travels along the aluminum alloy cylinder axis 1 and is fed radially, and the splitting saw blade completes the splitting of the aluminum alloy cylinder assembly 1 after moving from one end to the other end of the aluminum alloy cylinder 1 in the axial direction.
Flattening: flattening the split aluminum alloy cylinder 1 at the joint, wherein the aluminum alloy cylinder 1 is deformed into a circular arc shape from a cylinder; in the specific implementation method, a flattening machine 3 is adopted for flattening, as shown in fig. 9-11, the flattening machine 3 comprises a plurality of swing arm devices which are distributed along the axial direction of the aluminum alloy cylinder 1, the plurality of swing arm devices are connected through a connecting beam 307, and the aluminum alloy cylinder 1 is placed on the connecting beam 307; the swing arm device comprises swing arms symmetrically arranged on two sides of the aluminum alloy cylinder 1, the tail ends of the swing arms are pointed, the tail ends of the swing arms are inserted into the cutting slits, and in the unfolding process, the tail ends of the swing arms swing obliquely downwards to unfold the aluminum alloy cylinder 1 into an arc shape. The swing arm comprises a large arm 303, a large hydraulic cylinder 304, a small arm 301, a pointed pusher dog arranged at the end part of the small arm 301 and a small hydraulic cylinder 302; the base 306 is provided with a frame 305, and the inner end points of the two large arms 303 are assembled at the top point of the middle part of the frame 305 through hinge shafts; the cylinder bodies of the two large hydraulic cylinders 304 are respectively connected with the two bottom ends of the frame 305 through hinge shafts; the top ends of cylinder rods of the two large hydraulic cylinders 304 are hinged with the bottom ends of the outer sides of inflection points of the two large arms 303 respectively; the lower parts of the two small arms 301 are respectively hinged with the outer vertexes of the two large arms 303 through hinge shafts; the bottoms of the cylinder bodies of the two small hydraulic cylinders 302 are respectively and fixedly connected with the two large arms 303, and the cylinder rods are respectively connected with the bottom ends of the two small arms 301 through hinge shafts; the pulling claw is arranged at the upper end of the small arm 301 and is used for grasping the edge of the object to be flattened and flattening the object.
Roller type primary straightening: feeding the flattened circular arc-shaped aluminum alloy section 1 into a roller type primary straightening machine 4 in a rib plate upward state for primary straightening; the arc of the arc-shaped aluminum alloy section bar 1 is developed from an arc shape to a straight direction, and further flattening is realized.
As shown in fig. 2 to 4, the roller type preliminary straightener 4 comprises two first upper straightener and first lower straightener which are arranged side by side, wherein the first upper straightener is provided with a first upper roller shaft 401, a plurality of first upper straightener roller rings 402 are arranged on the first upper roller shaft 401, two ends of the first upper roller shaft 401 are connected with first upper roller shaft bearing seats 403, and the first upper roller shaft bearing seats 403 are connected with first opening degree adjusting devices for driving the first upper roller shaft bearing seats 403 to move up and down; the first opening degree adjusting means is a hydraulic cylinder 404. The first lower straightening device is provided with a first lower roll shaft 405, a plurality of first lower straightening roll rings 406 are arranged on the first lower roll shaft 405, and two ends of the first lower roll shaft 405 are connected with first lower roll shaft bearing seats 407; the first upper straightening roll ring 402 and the first lower straightening roll ring 406 are respectively connected with the first upper roll shaft 401 and the first lower roll shaft 405 through first long keys 409 and can slide on the first upper roll shaft 401 and the first lower roll shaft 405, and the first upper straightening roll ring 402 and the first lower straightening roll ring 406 are fixed on the first upper roll shaft 401 and the first lower roll shaft 405 through a first limiting mechanism 408; the rib plate of the aluminum alloy section bar 1 is positioned between two adjacent first upper straightening roller rings 402 for straightening, and the step is performed for a plurality of passes; the first upper roller shaft 401 and the first lower roller shaft 405 are connected with a first rotating mechanism for driving the first upper roller shaft and the first lower roller shaft to rotate, and the first rotating mechanism can be a motor, a speed reducer, a connecting shaft and other mechanisms.
Stretching and straightening: stretching the primarily straightened aluminum alloy section bar 1 along the axial direction of the aluminum alloy section bar; in the specific embodiment, the stretching machine 5 is used for stretching, and two ends of the primarily straightened aluminum alloy section bar 1 in the axial direction are clamped on the stretching machine 5 for stretching. The axial defect of the aluminum alloy section bar 1 is improved, the aluminum alloy section bar is straightened in the axial direction, and the stretching direction is stretching towards the two sides outwards.
Straightening in a roller: the stretched aluminum alloy section bar 1 is placed into a straightening backing plate 6 in a state that the rib plates face downwards, the straightening backing plate 6 is covered on the side, without the rib plates, of the aluminum alloy section bar 1, and the straightening backing plate 6 with the aluminum alloy section bar 1 is sent into a roller type middle straightener 7 for straightening. As shown in fig. 5, the roll-type intermediate straightener 7 has a second upper roll system having a plurality of second upper straightening rolls 701 arranged in the axial direction of the aluminum alloy section, and a second lower roll system having a plurality of second lower straightening rolls 702 arranged in the axial direction of the aluminum alloy section, and the second upper straightening rolls 701 and the second lower straightening rolls 702 are staggered; the second upper straightening roll 701 and the second lower straightening roll 702 are connected with a second rotating mechanism for driving them to rotate. The aluminum alloy section passes between the second upper roller system and the second lower roller system, and is flattened under the action of the second upper roller system and the second lower roller system, and the step is performed for a plurality of passes, so that the aluminum alloy section 1 is in a nearly straight state in the direction vertical to the axial direction.
Roller type fine straightening: feeding the aluminum alloy section 1 subjected to middle straightening into a roller type fine straightening machine 8 in a state that rib plates face downwards for straightening, wherein the roller type fine straightening machine 8 comprises a third upper straightening device and a third lower straightening device, the third upper straightening device is provided with a third upper roller shaft 801, a plurality of third upper straightening roller rings 802 are arranged on the third upper roller shaft, two ends of the third upper roller shaft 801 are connected with third upper roller shaft bearing seats 803, and the third upper roller shaft bearing seats 803 are connected with third opening degree adjusting devices for driving the third upper roller shaft bearing seats 803 to move up and down; the third opening degree adjusting device comprises a gear motor 804, two output ends of the gear motor 804 are respectively connected with input ends of two worm gear lifters 806 through a transmission shaft 805, and output ends of the two worm gear lifters are respectively connected with two third upper roll shaft bearing seats 803. The third lower straightening device is provided with a third lower roll shaft 807, a plurality of third lower straightening roll rings 808 are arranged on the third lower roll shaft 807, and the two ends of the third lower roll shaft 807 are connected with third lower roll shaft bearing seats 809; the third upper straightening roll ring 802 and the first lower straightening roll ring 808 are respectively connected with the third upper roll shaft 801 and the third lower roll shaft 807 through a third long key 811 and can slide on the third upper roll shaft 801 and the third lower roll shaft 807, and the third upper straightening roll ring 802 and the third lower straightening roll ring 808 are fixed on the third upper roll shaft 801 and the third lower roll shaft 807 through a third limiting mechanism 812; the bottom of the third lower roll shaft bearing housing 809 is connected with an adjusting spacer 810 for adjusting the height of the third lower roll shaft bearing housing 809. The width of third upper straightening roll ring 802 and the width of third lower straightening roll ring 808 are smaller than the width of first upper straightening roll ring 402 and the width of first lower straightening roll ring 406. A third rotation mechanism that drives rotation of the third upper roller shaft 801 and the third lower roller shaft 807 is connected. The rib plate of the aluminum alloy section bar 1 is positioned between two adjacent third upper straightening roller rings for straightening, and the step can be performed for a plurality of passes until the aluminum alloy section bar 1 is in a flat plate shape. The aluminum alloy section bar 1 is straightened in the direction vertical to the axial direction.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. An integral extrusion-formed aluminum alloy cylinder flattening process with rib plates is characterized by comprising the following steps of:
splitting, namely splitting the integrally extruded aluminum alloy cylinder with the rib plates along the axial direction of the aluminum alloy cylinder, and leaving a slit extending along the axial direction of the aluminum alloy cylinder on the aluminum alloy cylinder after splitting;
flattening: flattening the split aluminum alloy cylinder at the joint, wherein the aluminum alloy cylinder is deformed into a circular arc shape from the cylinder;
roller type primary straightening: feeding the flattened circular arc aluminum alloy section into a roller type primary straightening machine in a rib plate upward state for primary straightening; the roller type preliminary straightening machine comprises two first upper straightening devices and first lower straightening devices which are arranged side by side, wherein the first upper straightening devices are provided with first upper roller shafts, a plurality of first upper straightening roller rings are arranged on the first upper roller shafts, two ends of each first upper roller shaft are connected with first upper roller shaft bearing seats, and the first upper roller shaft bearing seats are connected with first opening degree adjusting devices for driving the first upper roller shaft bearing seats to move up and down; the first lower straightening device is provided with a first lower roll shaft, a plurality of first lower straightening roll rings are arranged on the first lower roll shaft, and two ends of the first lower roll shaft are connected with first lower roll shaft bearing seats; the rib plate of the aluminum alloy section is positioned between two adjacent first upper straightening roller rings for straightening, and the step is performed for a plurality of passes;
stretching and straightening: stretching the primarily straightened aluminum alloy section along the axial direction of the aluminum alloy section;
straightening in a roller: loading the stretched aluminum alloy section into a straightening backing plate in a state that the rib plates face downwards, covering the straightening backing plate on the side of the aluminum alloy section without the rib plates, and feeding the straightening backing plate with the aluminum alloy section into a roller type middle straightening machine for straightening, wherein the roller type middle straightening machine is provided with a second upper roller system and a second lower roller system, the second upper roller system is provided with a plurality of second upper straightening rollers which are arranged along the axial direction of the aluminum alloy section, the second lower roller system is provided with a plurality of second lower straightening rollers which are arranged along the axial direction of the aluminum alloy section, and the second upper straightening rollers and the second lower straightening rollers are staggered; the aluminum alloy section passes between the second upper roller system and the second lower roller system, and is flattened under the action of the second upper roller system and the second lower roller system, and the steps are carried out for a plurality of passes;
roller type fine straightening: feeding the aluminum alloy section subjected to middle straightening into a roller type fine straightening machine in a rib plate downward state for straightening, wherein the roller type fine straightening machine comprises a third upper straightening device and a third lower straightening device, the third upper straightening device is provided with a third upper roller shaft, a plurality of third upper straightening roller rings are arranged on the third upper roller shaft, two ends of the third upper roller shaft are connected with third upper roller shaft bearing seats, and the third upper roller shaft bearing seats are connected with third opening degree adjusting devices for driving the third upper roller shaft bearing seats to move up and down; the third lower straightening device is provided with a third lower roll shaft, a plurality of third lower straightening roll rings are arranged on the third lower roll shaft, and two ends of the third lower roll shaft are connected with third lower roll shaft bearing seats; the rib plate of the aluminum alloy section is positioned between two adjacent third upper straightening roller rings for straightening, and the step can be performed for a plurality of passes until the aluminum alloy section is in a flat plate shape.
2. The process for flattening an integrally extrusion-molded aluminum alloy cylinder with a rib plate according to claim 1, wherein an adjusting spacer for adjusting the height of the third lower straightener is connected to the bottom of the third lower straightener in the roll type fine straightener.
3. The process for flattening an integrally extruded aluminum alloy cylinder with a gusset of claim 1, wherein the gusset has a "T" shape, an "L" shape or an "I" shape in cross section.
4. The process for flattening an integrally extrusion-molded aluminum alloy cylinder with a rib plate according to claim 1, wherein a splitting saw is used in the splitting step, the splitting saw has a splitting saw blade which moves axially and feeds radially along the aluminum alloy cylinder, and the splitting saw blade completes the splitting of the aluminum alloy cylinder after moving axially from one end of the aluminum alloy cylinder to the other end.
5. The process for flattening an integrally extrusion-molded aluminum alloy cylinder with a rib plate according to claim 1, wherein a flattening machine is adopted in the flattening step, the flattening machine comprises a plurality of swing arm devices which are arranged along the axial direction of the aluminum alloy cylinder, each swing arm device comprises swing arms symmetrically arranged on two sides of the aluminum alloy cylinder, the tail ends of the swing arms are pointed, the tail ends of the swing arms are inserted into the cutting slits, and in the unfolding process, the tail ends of the swing arms swing obliquely downwards to unfold the aluminum alloy cylinder into an arc shape.
6. The process for flattening an integrally extruded aluminum alloy cylinder with a rib plate according to claim 1, wherein a stretcher is used in the step of stretching and straightening, and both ends of the primarily straightened aluminum alloy section in the axial direction are clamped on the stretcher for stretching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447478.5A CN114042779B (en) | 2021-11-30 | 2021-11-30 | Integral extrusion forming aluminum alloy cylinder flattening process with rib plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447478.5A CN114042779B (en) | 2021-11-30 | 2021-11-30 | Integral extrusion forming aluminum alloy cylinder flattening process with rib plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114042779A CN114042779A (en) | 2022-02-15 |
| CN114042779B true CN114042779B (en) | 2023-10-03 |
Family
ID=80212062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111447478.5A Active CN114042779B (en) | 2021-11-30 | 2021-11-30 | Integral extrusion forming aluminum alloy cylinder flattening process with rib plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114042779B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2692421A (en) * | 1951-12-22 | 1954-10-26 | Hydropress Inc | Flattening of extruded stiffened sheets |
| FR1115908A (en) * | 1951-12-22 | 1956-05-02 | Hydropress | Method and apparatus for the production of reinforcing sheets integral with them |
| SU1488059A1 (en) * | 1986-01-23 | 1989-06-23 | Производственное объединение "Новокраматорский машиностроительный завод" | Straightening arrangement |
| RU2010642C1 (en) * | 1991-05-05 | 1994-04-15 | Акционерное общество "Самарская металлургическая компания" | Plate for straightening ribbed panels |
| CN207839642U (en) * | 2018-01-22 | 2018-09-11 | 东莞市宏锦金属制品有限公司 | The molding apparatus for correcting of aluminium alloy |
| CN109277422A (en) * | 2018-10-10 | 2019-01-29 | 江苏亿和新材料有限公司 | A kind of high muscle thin-walled plate of 7xxx line aluminium alloy wide cut and its extrusion forming method |
| CN109570258A (en) * | 2018-11-15 | 2019-04-05 | 中南大学 | A kind of wide cut sheet with rib material and its integral forming method |
| CN110899383A (en) * | 2019-10-30 | 2020-03-24 | 太原科技大学 | Unfolding straightening method for arc section of thin-walled cylindrical part with outer transverse ribs |
| CN113333468A (en) * | 2021-06-09 | 2021-09-03 | 湖北美科精毅科技有限公司 | Unfolding and shape righting process of cylindrical extruded wall plate |
-
2021
- 2021-11-30 CN CN202111447478.5A patent/CN114042779B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2692421A (en) * | 1951-12-22 | 1954-10-26 | Hydropress Inc | Flattening of extruded stiffened sheets |
| FR1115908A (en) * | 1951-12-22 | 1956-05-02 | Hydropress | Method and apparatus for the production of reinforcing sheets integral with them |
| SU1488059A1 (en) * | 1986-01-23 | 1989-06-23 | Производственное объединение "Новокраматорский машиностроительный завод" | Straightening arrangement |
| RU2010642C1 (en) * | 1991-05-05 | 1994-04-15 | Акционерное общество "Самарская металлургическая компания" | Plate for straightening ribbed panels |
| CN207839642U (en) * | 2018-01-22 | 2018-09-11 | 东莞市宏锦金属制品有限公司 | The molding apparatus for correcting of aluminium alloy |
| CN109277422A (en) * | 2018-10-10 | 2019-01-29 | 江苏亿和新材料有限公司 | A kind of high muscle thin-walled plate of 7xxx line aluminium alloy wide cut and its extrusion forming method |
| CN109570258A (en) * | 2018-11-15 | 2019-04-05 | 中南大学 | A kind of wide cut sheet with rib material and its integral forming method |
| CN110899383A (en) * | 2019-10-30 | 2020-03-24 | 太原科技大学 | Unfolding straightening method for arc section of thin-walled cylindrical part with outer transverse ribs |
| CN113333468A (en) * | 2021-06-09 | 2021-09-03 | 湖北美科精毅科技有限公司 | Unfolding and shape righting process of cylindrical extruded wall plate |
Non-Patent Citations (2)
| Title |
|---|
| （苏）叶尔曼诺克著；李西铭，张渌泉译.铝合金壁板挤压.北京：国防工业出版社,1988,235-242. * |
| 刘静安，谢建新著.大型铝合金型材挤压技术与工模具优化设计.北京：冶金工业出版社,2003,72-75. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114042779A (en) | 2022-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110216424B (en) | Box welding production line and production method | |
| CN2863295Y (en) | Single driving synchronization type round barrel flanging beader | |
| CN104785598B (en) | Rolling edge folding machine | |
| CN114042779B (en) | Integral extrusion forming aluminum alloy cylinder flattening process with rib plates | |
| CN109175916A (en) | The processing technology of spoke in a kind of wheel | |
| CN106964691A (en) | A kind of band grid ribs Cylinder shape constructional element flexible compound manufacturing process | |
| CN215588235U (en) | Stirrup expanding unit and automatic weld machine in steel reinforcement cage | |
| US6286352B1 (en) | Stretch roll forming apparatus using frusto-conical rolls | |
| US20090090153A1 (en) | Retained mandrel rolling mill for seamless tubes | |
| CN107639151A (en) | A kind of large scale annular element digitlization flexible forming apparatus and method | |
| CN214211819U (en) | Double-roller rounding machine | |
| CN110293169A (en) | A kind of hole punched device for stretch benders | |
| CN114042783A (en) | Aluminum alloy profile two-roller straightening machine with rib plates | |
| CN211687159U (en) | Panel centering clamping device | |
| CN205798143U (en) | Solar-cell panel support type steel production line | |
| US3254521A (en) | Apparatus for forming metallic sheet members | |
| CN206997543U (en) | The mould structure of automobile side top covering and gutter channel | |
| CN220259309U (en) | Mould mechanism for improving rotation angle of double symmetrical plate | |
| CN110860617A (en) | A unloading workstation on 12 meters benders for longeron sheet stock is bent | |
| CN112872797A (en) | Alloy plate metal plate machining process | |
| CN211917365U (en) | PVC car is plasticator for insulating material | |
| CN213729096U (en) | High-efficient steel wire cutter | |
| CN221018115U (en) | Square steel cold bending die | |
| CN219617243U (en) | Intelligent panel overturning platform | |
| CN219275248U (en) | Loading attachment is used in cutting of car seat production multitube spare |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |