CN220239722U

CN220239722U - Improved die device for realizing seamless aluminum bent pipe

Info

Publication number: CN220239722U
Application number: CN202321972626.XU
Authority: CN
Inventors: 许秦波
Original assignee: SUZHOU OXYGEN PLANT CO Ltd
Current assignee: SUZHOU OXYGEN PLANT CO Ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2023-12-26
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses an improved die device for realizing a seamless aluminum bent pipe, which belongs to the field of aluminum production and processing and comprises a guide-in die, a bending die and a clamping die, wherein the guide-in die and the clamping die are respectively provided with a placing groove, the guide-in die and the clamping die are respectively used for clamping an aluminum pipe in the placing grooves, the bending die is used for bending the aluminum pipe along the side wall of the aluminum pipe, a long rod with a supporting part at the end part is arranged at the guide-in die, the long rod extends into the aluminum pipe, the supporting part is used for supporting the inner wall of the bending part of the aluminum pipe, and the supporting part is multi-section so that the long rod can still be pulled out along the inner wall of the aluminum pipe after bending.

Description

Improved die device for realizing seamless aluminum bent pipe

Technical Field

The utility model belongs to the technical field of aluminum production and processing, and particularly relates to an improved die device for realizing a seamless aluminum bent pipe.

Background

The seamless aluminum pipe is a high-strength alloy aluminum material produced by reverse extrusion after the aluminum rod is perforated, and has the characteristics that no welding line exists, the high-speed rotary processing cannot crack, the turning is finished, no welding line exists, and the appearance part appearance is not affected.

Because each equipment is different to the user demand of aluminum pipe, in many cases, need bend the processing to the aluminum pipe, at present, the bending machine of general use is generally used to the processing of bending of aluminum pipe in the market, for example, chinese patent application number CN202022019072.4 discloses a bending machine, it includes the workstation, push away the pipe subassembly, fixed subassembly, the return bend subassembly, set up the slide rail on the workstation, through the pneumatic cylinder of control rack below in the push away the pipe subassembly, adjust the height of rack, make the pipe fitting that falls into the rack push away in the return bend subassembly under the effect of pushing away the pneumatic cylinder, because the length of pipe fitting is different, slide the setting of rack on the workstation, control push away the distance of pipe subassembly and return bend subassembly, above-mentioned bending machine has the pipe diameter according to the pipe fitting, the difference of length, adjust the pipe fitting position, make the better effect of return bend effect.

The prior art has the following problems: for the seamless aluminum pipe, due to good plasticity, the bent pipe is easy to generate inner side wrinkles, external tension cracks, high ellipticity, large wall thickness reduction amount and the like in the bending process, the rejection rate is extremely high, and the production cost is increased.

Disclosure of Invention

The utility model aims to provide an improved die device for realizing a seamless aluminum bent pipe, which aims to solve the problems that the seamless aluminum pipe provided in the background art is easy to generate inner side wrinkles, external tension cracks, high ellipticity, high wall thickness reduction and the like in the bending process, so that the rejection rate is extremely high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a mould improvement device for realizing seamless aluminium return bend, includes total platform, it all opens the standing groove to have placed on the total platform to lead-in mould and the clamping mould, lead-in mould and clamping mould all are used for making the aluminum pipe centre gripping in the standing groove above that, the bending die is used for making the aluminum pipe buckle along its lateral wall, lead-in mould department is provided with the stock that the tip has the supporting part, stock stretches into the aluminum pipe and its supporting part is used for supporting the inner wall of aluminum pipe department of buckling, the supporting part is multisection so that it can still follow the aluminum pipe inner wall and take out after buckling.

Preferably, the bending die is a disc, and the thickness of the disc is larger than the diameter of the aluminum pipe to be processed.

Preferably, the total platform is provided with a moving platform which reciprocates along a fixed direction in the horizontal direction and a rotating platform which rotates in the horizontal direction, the guide-in die is horizontally fixed on the moving platform, the clamping die is horizontally fixed on the rotating platform, and the bending die is horizontally fixed on the rotating platform and is coaxial with the rotating platform.

Preferably, the clamping die is divided into a clamping upper die and a clamping lower die, the clamping lower die is fixed on the bending die, and the clamping upper die is detachably connected with the clamping lower die.

Preferably, the anti-wrinkling mould with the holding groove is fixed on the main platform, the anti-wrinkling mould comprises a clamping end and a bending protection end, the clamping end of the anti-wrinkling mould is used for clamping the aluminum pipe by the cooperation of the guiding mould, the bending protection end of the anti-wrinkling mould is axially arranged on the side wall of the bending mould along the bending mould, the bending part of the aluminum pipe is always attached to the holding groove on the bending protection end of the anti-wrinkling mould, and the holding groove on the bending protection end of the anti-wrinkling mould is matched with the radian of the outer wall of the aluminum pipe so as to be used for protecting the outer surface of the pipe fitting to prevent wrinkling and cracking.

Preferably, the groove depths of the holding ends and the bending protection ends of the anti-crease mold are smaller than the radius of the aluminum pipe.

Compared with the prior art, the utility model provides an improved die device for realizing a seamless aluminum bent pipe, which has the following beneficial effects:

according to the utility model, the long rod with the supporting part is arranged on the original arrangement, and the long rod extends into the aluminum pipe to support the inner wall of the bending part of the aluminum pipe, so that the aluminum pipe is free from the condition of inner side wrinkles during bending, and the supporting part is multi-section, so that the supporting part can still be pulled out along the inner wall of the aluminum pipe after bending;

secondly, by arranging the crease-resistant die, the clamping end of the crease-resistant die is used for clamping the aluminum pipe by matching with the guide-in die, so that the part of the aluminum pipe passing through the part can not be tilted, and the bending protection end of the crease-resistant die is used for protecting the outer surface of the pipe fitting to prevent wrinkling and cracking;

finally, through setting up leading-in mould, press from both sides tight lower mould, the tight end of clamp of crease-resist mould and the radius that buckles the standing groove on the protection end all is less than the aluminum pipe, guaranteed that the aluminum pipe can be pressed from both sides tightly or grasp completely, through the above structure setting, can effectually solve seamless aluminum pipe and easily take place inboard fold at the bending in-process return bend, outside drawing and splitting, ovality is big, wall thickness reduction volume phenomenon such as big for the disability rate is high problem.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the utility model and do not constitute a limitation to the utility model, and in which:

FIG. 1 is a schematic diagram showing the connection and positional relationship of the various parts of an aluminum pipe before bending for a die improvement apparatus for realizing a seamless aluminum bend according to the present utility model;

FIG. 2 is a schematic diagram showing the connection and positional relationship of the various parts of an aluminum pipe after bending for a die improvement apparatus for realizing a seamless aluminum bend according to the present utility model;

in the figure: 1. a general platform; 2. a mobile station; 3. a rotating table; 4. an aluminum pipe; 5. introducing a mold; 6. clamping the upper die; 7. clamping the lower die; 8. bending and rotating the die; 9. a long rod; 10. a support part; 11. a crease-resistant membrane; 12. a hydraulic cylinder; 13. and a connecting part.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a mould improvement device for realizing seamless aluminium return bend, including total platform 1, be provided with on total platform 1 along fixed direction reciprocating motion's mobile station 2 and the rotation platform 3 of rotation in the horizontal direction, be fixed with a rectangular form guide-in mould 5 on mobile station 2 level, be fixed with a clamp mould on rotation platform 3 level, be fixed with a bending mould 8 on rotation platform 3 level and bending mould 8 rotation platform 3 is coaxial, mobile station 2 can control its motion through the structure of lead screw slide rail, the below of rotation platform 3 can control its and the joint rotation of bending mould 8 through installing the motor, wherein, guide-in mould 5 and clamp mould all are used for making aluminium pipe 4 centre gripping in the standing groove above that, bending mould 8 is used for making aluminium pipe 4 buckle along its lateral wall, bending mould 8 is a disc, and the thickness of this disc is greater than the diameter of treating processing aluminium pipe 4.

Wherein, be provided with the stock 9 that the tip has supporting part 10 in leading-in mould 5 department, stock 9 stretches into aluminum pipe 4 and its supporting part 10 is used for supporting the inner wall of aluminum pipe 4 department of buckling, supporting part 10 divide into the multisection so that it can still follow aluminum pipe 4 inner wall after buckling, supporting part 10 of stock 9 is by a plurality of rotalike hard pieces splice in proper order and is constituteed, connect through the universal wheel structure between the adjacent rotalike hard pieces, still be provided with connecting portion 13 on stock 9, connecting portion 13 is formed by multisection quarter butt connection, if aluminum pipe 4 kink is too big, connecting portion 13 can buckle along with aluminum pipe 4, the application scope of stock 9 has been improved, in addition, be fixed with a pneumatic cylinder 12 on total platform 1, the output of pneumatic cylinder 12 is connected with stock 9, through using pneumatic cylinder 12 let stock 9 can be along with aluminum pipe 4 simultaneous movement, support of aluminum pipe 4 kink when having guaranteed aluminum pipe 4.

Referring to fig. 1 and 2, the clamping die is divided into an upper clamping die 6 and a lower clamping die 7, the lower clamping die 7 is fixed on a bending die 8, the upper clamping die 6 and the lower clamping die 7 are detachably connected so as to facilitate the clamping action on the aluminum pipe 4, a crease-resistant die with a placing groove is fixed on the main platform 1, the crease-resistant die is higher than the movable platform 2 and is flush with the guide die 5, the crease-resistant die comprises a clamping end and a bending protection end, the clamping end of the crease-resistant die is used for clamping the aluminum pipe 4 by matching with the guide die 5, and when the aluminum pipe 4 is in a clamping state, the aluminum pipe 4 can still pass between the crease-resistant die and the guide die 5, and the aluminum pipe 4 is clamped by the two so as to prevent the aluminum pipe 4 from tilting; the bending protection end of the crease-resistant die is axially arranged on the side wall of the bending die 8 along the bending die 8, the bending part of the aluminum pipe 4 is always attached to the placing groove on the bending protection end of the crease-resistant die, and the placing groove on the bending protection end of the crease-resistant die is matched with the radian of the outer wall of the aluminum pipe 4 so as to be used for protecting the outer surface of a pipe fitting to prevent wrinkling and cracking.

In addition, the above-mentioned lead-in die 5, clamping upper die 6, clamping lower die 7, the groove depth of the holding end of the crease-resist die and the placing groove on the bending protecting end are smaller than the radius of the aluminum pipe 4 to ensure that the aluminum pipe 4 can be completely clamped or clamped.

The working principle and the using flow of the utility model are as follows:

when the device is used, the length of the aluminum pipe 4 and the position of the bending part are determined, the hydraulic cylinder 12 is adjusted to a proper position on the total platform 1, then the long rod 9 is inserted into the aluminum pipe 4, the supporting part 10 of the long rod is positioned at the part to be bent of the aluminum pipe 4, then the aluminum pipe 4 is clamped between the guide-in die 5 and the clamping end of the crease-resistant die, meanwhile, the aluminum pipe 4 is clamped between the clamping upper die 6 and the clamping lower die 7, the device is started, the bending die 8 rotates, the clamping upper die 6 and the clamping lower die 7 pull the aluminum pipe 4 to bend along the radian of the bending die 8, at the moment, the bending protecting end of the crease-resistant die replaces the bending die 8 to enable the aluminum pipe 4 to be in contact with the inner wall of a placing groove on the bending protecting end of the crease-resistant die, the outer surface of the pipe is effectively protected to prevent wrinkling and cracking, and the phenomena such as high wall thickness reduction and the like of the seamless aluminum pipe 4 are effectively solved in the bending process.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mould improvement device for realizing seamless aluminium return bend, includes total platform (1), place on total platform (1) and lead-in mould (5), turn over mould (8) and clamp die, all open the standing groove on lead-in mould (5) and the clamp die, lead-in mould (5) and clamp die all are used for making aluminum pipe (4) centre gripping in the standing groove above that, turn over mould (8) are used for making aluminum pipe (4) buckle along its lateral wall, its characterized in that: the guiding-in die (5) is provided with a long rod (9) with a supporting part (10) at the end part, the long rod (9) stretches into the aluminum pipe (4) and the supporting part (10) is used for supporting the inner wall of the bending part of the aluminum pipe (4), and the supporting part (10) is divided into a plurality of sections so that the supporting part can still be pulled out along the inner wall of the aluminum pipe (4) after bending.

2. A mold improvement for achieving a seamless aluminum bend according to claim 1, wherein: the bending die (8) is a disc, and the thickness of the disc is larger than the diameter of the aluminum pipe (4) to be processed.

3. A mold improvement for achieving a seamless aluminum bend according to claim 2, wherein: the novel rotary table is characterized in that the total platform (1) is provided with a moving table (2) which reciprocates along a fixed direction in the horizontal direction and a rotating table (3) which rotates in the horizontal direction, the guide-in die (5) is horizontally fixed on the moving table (2) and the clamping die is horizontally fixed on the rotating table (3), and the bending die (8) is horizontally fixed on the rotating table (3) and is coaxial with the rotating table (3).

4. A mould improvement for the realization of a seamless aluminium bend according to claim 1 or 3, characterized in that: the clamping die is divided into a clamping upper die (6) and a clamping lower die (7), the clamping lower die (7) is fixed on the bending die (8), and the clamping upper die (6) is detachably connected with the clamping lower die (7).

5. A mold improvement for achieving a seamless aluminum bend according to claim 4, wherein: the anti-wrinkling device is characterized in that an anti-wrinkling die with a placing groove is fixed on the main platform (1), the anti-wrinkling die comprises a clamping end and a bending protection end, the clamping end of the anti-wrinkling die is used for clamping an aluminum pipe (4) by being matched with the guiding die (5), the bending protection end of the anti-wrinkling die is axially arranged on the side wall of the bending die (8) along the bending die (8), the bending part of the aluminum pipe (4) is always attached to the placing groove on the bending protection end of the anti-wrinkling die, and the placing groove on the bending protection end of the anti-wrinkling die is matched with the radian of the outer wall of the aluminum pipe (4) so as to be used for protecting the outer surface of the pipe fitting and further preventing wrinkling and cracking.

6. A mold improvement for achieving a seamless aluminum bend according to claim 5, wherein: the groove depths of the holding ends of the crease-resistant dies and the placing grooves on the bending protection ends are smaller than the radius of the aluminum pipe (4).