CN214290195U

CN214290195U - Bending equipment for automobile aluminum alloy square beam part

Info

Publication number: CN214290195U
Application number: CN202120081547.4U
Authority: CN
Inventors: 王麒然
Original assignee: Cosma Xingqiaorui Automotive Hangzhou Co ltd
Current assignee: Cosma Xingqiaorui Automotive Hangzhou Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-09-28
Anticipated expiration: 2031-01-13

Abstract

The utility model relates to the technical field of metal processing, and a car aluminum alloy square beam part's equipment of bending is disclosed, including infrabasal plate, last shaping piece, the upper end fixed mounting of infrabasal plate has the lower bolster, the upper end middle part fixed mounting of lower bolster has shaping piece, second under first shaping piece and first locating piece, and the middle part movable mounting of shaping piece has the work or material rest that holds in the palm under first shaping piece and the second. The bending equipment for the automobile aluminum alloy square beam part has high production efficiency, has small change of the cross section shape of the cross beam compared with the conventional bending process, meets the tolerance requirement (plus or minus 0.8 mm) of the part, and has no wrinkle problem; the part mechanical properties is stable, can not appear great unsteady, compares in common stretch-bending technology takt greatly to be reduced, and no cracking risk, stub bar do not have the clamp and hinder, need not follow-up increase and get rid of the process of stub bar, and the size is more stable after the bending, can not appear twisting the condemned condition, also does not have the potential safety hazard that the people was hurt in the fracture bullet of external fracture.

Description

Bending equipment for automobile aluminum alloy square beam part

Technical Field

The utility model relates to a metal processing technology field specifically is an equipment of bending of car aluminum alloy square beam part.

Background

The automobile is a transportation tool widely used in the society at present, in recent years, the quantity of automobiles kept in China is increased year by year and becomes a remarkable increasing trend, the environmental protection problem is more severe, the national motor vehicle emission standard is improved year by year, the national six standards are executed at present, and the aluminum alloy section bar is widely applied to the production and the manufacture of automobile parts for energy conservation and emission reduction and realization of automobile lightweight.

At present, square tubular parts such as automobile body frames, bumper bars and the like are produced by using T4 aluminum alloy rectangular tubes as raw materials and adopting a stretch bending or press bending process, T6 heat treatment is carried out subsequently, the pipe part press bending process inevitably has obvious change of the cross section shape, and the wrinkle defects such as concave and convex, and for most automobile aluminum alloy pipe parts, the requirements cannot be met at all, so the stretch bending process is often adopted, the produced part stub bars have clamp injury due to the limitation of the stretch bending process, the subsequent increase process of the stub bars is sometimes required to saw the positions containing the clamp injury, the slow tempo of the stretch bending process is longer, the influence of the change of the stretching amount on the performance of the parts is larger, although the parts produced by the process can effectively avoid the wrinkles at the bending position of the square beams, the side walls of the parts at the bending position have thinning in different degrees, and the parts are easy to crack when the bending radius is smaller, because the stress can not be completely eliminated well in the stretch bending process, the T6 is easy to be twisted and scrapped after heat treatment, so the current stretch bending process has low efficiency and a certain scrappage rate, and the potential safety hazard that the cross beam is suddenly pulled off and flicked to hurt people exists in the stretch bending process.

Recently, in order to produce a front cross beam of an automobile, the cross section is rectangular, two sections of bending parts are arranged, the bending part with the smallest radius is 30CM, the material is 7 series aluminum alloy, a conventional stretch bending process is selected, a core rod needs to be plugged in during the stretch bending process, the stretch bending is clamped, the redundant clamping wound parts at two ends are removed through sawing, and then T6 heat treatment is carried out.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an equipment of bending of car aluminum alloy square beam part possesses succinct high-efficient dimensionally stable advantage, has solved the problem mentioned among the above-mentioned background art.

The utility model provides a following technical scheme: a bending device for an automobile aluminum alloy square beam part comprises a lower base plate and an upper forming block, wherein a lower base plate is fixedly installed at the upper end of the lower base plate, a first lower forming block, a second lower forming block and a first positioning block are fixedly installed in the middle of the upper end of the lower base plate, a material supporting frame is movably installed in the middle of the first lower forming block and the second lower forming block, a second positioning block is fixedly installed at the upper end of the material supporting frame, a first guide pillar, a first nitrogen spring, a safety bolt, a second nitrogen spring and a second guide pillar are fixedly installed at the bottom end of the material supporting frame, a workpiece blank is movably installed at the upper end of the second positioning block, a movable supporting block shaft seat is fixedly installed at one end of the second lower forming block, movable supporting blocks are arranged on two sides of the movable supporting block shaft seat, an oil cylinder support is fixedly installed above the movable supporting blocks, and a core drawing frame is fixedly installed inside the oil cylinder support, the core pulling device is characterized in that the bottom of the core pulling frame is movably connected with an air cylinder, an oil cylinder fixing block is fixedly mounted at the other end of the core pulling frame, an oil cylinder is fixedly mounted in the middle of the oil cylinder fixing block, a chain type core rod is fixedly mounted at one end of the oil cylinder, and a core pulling limiting block is fixedly mounted at the other end of the chain type core rod.

And carefully selecting, wherein an upper base plate is fixedly arranged at the upper end of the upper forming block, and an upper base plate is fixedly arranged at the upper end of the upper base plate.

And carefully selecting, wherein the bottom of the upper forming block is consistent with the upper surface shapes of the first lower forming block, the material supporting frame and the second lower forming block and is mutually attached.

And carefully selecting, wherein the first guide pillar, the first nitrogen spring, the safety bolt, the second nitrogen spring and the second guide pillar are all arranged below the material supporting frame and are symmetrically distributed.

The chain type core rod is selected, the rigid chain type structure is adopted, the shape following design is adopted, and the edge chamfer is round and smooth.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the bending equipment for the automobile aluminum alloy square beam part has high production efficiency, has small change of the cross section shape of the cross beam compared with the conventional bending process, meets the tolerance requirement (plus or minus 0.8 mm) of the part, and has no wrinkle problem; the part mechanical properties is stable, can not appear great unsteady, compares in common stretch-bending technology takt greatly to be reduced, and no cracking risk, stub bar do not have the clamp and hinder, need not follow-up increase and get rid of the process of stub bar, and the size is more stable after the bending, can not appear twisting the condemned condition, also does not have the potential safety hazard that the people was hurt in the fracture bullet of external fracture.

2. This equipment of bending of car aluminum alloy square beam part, this equipment chain core bone adopt rigid chain structure, design along with the shape, and the edge chamfer is mellow and full. And the gap of the chain type core is controlled within 1mm, when a part is bent, the side wall of the profile can be sunken inwards, the chain type core is plugged in to enable the profile to be tightly attached to the surface of the chain type core when the profile is bent, the sunken part is small and can be ignored, and the buckling situation can be avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

FIG. 3 is a schematic view of the chain type core of the present invention;

fig. 4 is a schematic view of the upper forming block of the present invention.

In the figure: 1. a lower substrate; 2. a cylinder; 3. a lower base plate; 4. a first guide post; 5. a first nitrogen spring; 6. a safety bolt; 7. a second gas spring; 8. a second guide post; 9. a first lower forming block; 10. a first positioning block; 11. a workpiece blank; 12. a material supporting frame; 13. a second positioning block; 14. a second lower forming block; 15. a movable supporting block shaft seat; 16. a movable supporting block; 17. an oil cylinder support; 18. a core-pulling frame; 19. an oil cylinder fixing block; 20. an oil cylinder; 21. a chain type core; 22. a core-pulling limiting block; 23. an upper forming block; 24. an upper substrate; 25. and (4) an upper cushion plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a bending apparatus for an aluminum alloy square beam component of an automobile comprises a lower substrate 1, an upper forming block 23, an upper backing plate 25 fixedly installed on the upper end of the upper forming block 23, an upper substrate 24 fixedly installed on the upper end of the upper backing plate 25, the upper forming block 23 having the same shape as the component, during the manufacturing process, the upper forming block 23 presses the workpiece blank 11 downwards to make the workpiece blank 11 generate plastic deformation to form a bending shape meeting the requirement, the bottom of the upper forming block 23 is in the same shape as the upper surfaces of a first lower forming block 9, a material support frame 12 and a second lower forming block 14 and is attached to each other, the upper end of the lower substrate 1 is fixedly installed with a lower backing plate 3, the middle part of the upper end of the lower backing plate 3 is fixedly installed with a first lower forming block 9, a second lower forming block 14 and a first positioning block 10, and the middle parts of the first lower forming block 9 and the second lower forming block 14 are movably installed with a material support frame 12, a second positioning block 13 is fixedly arranged at the upper end of the material supporting frame 12, a first guide post 4, a first nitrogen spring 5, a safety bolt 6, a second nitrogen spring 7 and a second guide post 8 are fixedly arranged at the bottom end of the material supporting frame 12, the first guide post 4, the first nitrogen spring 5, the safety bolt 6, the second nitrogen spring 7 and the second guide post 8 are all arranged below the material supporting frame 12 and are symmetrically distributed, a workpiece blank 11 is placed on the material supporting frame 12 in the manufacturing process, the accurate position is limited by the first guide post 4 and the second guide post 8, the workpiece blank is pressed and formed along with an upper forming block 23, the part is supported by the material supporting frame 12 under the action of the first nitrogen spring 5 and the second nitrogen spring 7 after forming, the workpiece blank is convenient to take and place, the first guide post 4 and the second guide post 8 are used for limiting the vertical movement of the material supporting frame 12, the safety bolt 6 is used for limiting the maximum stroke of the material supporting frame 12, the workpiece blank 11 is movably arranged at the upper end of the second positioning block 13, one end of the second lower forming block 14 is fixedly provided with a movable supporting block shaft seat 15, two sides of the movable supporting block shaft seat 15 are provided with movable supporting blocks 16, an oil cylinder support 17 is fixedly arranged above the movable supporting blocks 16, a core pulling frame 18 is fixedly arranged inside the oil cylinder support 17, the bottom of the core pulling frame 18 is movably connected with an air cylinder 2, the other end of the core pulling frame 18 is fixedly provided with an oil cylinder fixing block 19, the middle part of the oil cylinder fixing block 19 is fixedly provided with an oil cylinder 20, one end of the oil cylinder 20 is fixedly provided with a chain type core rod 21, the chain type core rod 21 adopts a rigid chain type structure, the shape following design is adopted, the edge chamfer is round and smooth, the gap of the chain type core rod 21 is controlled within 1mm, when a part is bent, the side wall of the section bar is inwards sunken, the chain type core rod 21 is plugged to enable the section bar to be tightly attached to the surface of the chain type core rod 21 when the section bar is bent, the sunken situation is small and can be neglected, and the situation can be effectively controlled, the section bar section deformation situation occurring in the bending process, further, a part with small section change is obtained, and a core-pulling limiting block 22 is fixedly arranged at the other end of the chain type core rod 21.

The working principle is as follows: when in use, the materials are prepared: preparing an aluminum alloy square tube with proper length as a workpiece blank 11 according to the actual arc length of the part; preparing bending: placing the prepared workpiece blank 11 on a die holder 12, and enabling the workpiece blank to be just attached to a second positioning block 13 and a first positioning block 10; starting the equipment: under an electric control program, the oil cylinder 20 pushes the chain type core rod 21 into the workpiece blank 11, and the position of the chain type core rod to be formed and pushed exceeds the small-radius bending area of the workpiece blank 11; bending: the upper forming block 23 is pressed downwards, and the forming of the part is finished along with the closing of the die; unloading and returning: the oil cylinder 20 withdraws the chain type core rod 21, the upper forming block 23 is opened, and the workpiece blank 11 is taken down and formed. T6 treatment: and bending and forming the workpiece blank 11, then sending the workpiece blank into a heat treatment furnace, carrying out a heat treatment process according to a preset temperature control curve, and finishing the part manufacturing after finishing the heat treatment process. The method is suitable for bending the cross beam, the smaller-radius bent angle of the cross beam is arranged at two ends, and the material of the cross beam is preferably 6 series or 7 series aluminum alloy material. And (4) finishing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

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

Claims

1. The utility model provides an equipment of bending of car aluminum alloy square beam part, includes infrabasal plate (1), goes up shaping piece (23), its characterized in that: a lower base plate (3) is fixedly installed at the upper end of the lower base plate (1), a first lower forming block (9), a second lower forming block (14) and a first positioning block (10) are fixedly installed in the middle of the upper end of the lower base plate (3), a material supporting frame (12) is movably installed in the middle of the first lower forming block (9) and the second lower forming block (14), a second positioning block (13) is fixedly installed at the upper end of the material supporting frame (12), a first guide pillar (4), a first nitrogen spring (5), a safety bolt (6), a second nitrogen spring (7) and a second guide pillar (8) are fixedly installed at the bottom end of the material supporting frame (12), a workpiece blank (11) is movably installed at the upper end of the second positioning block (13), a movable supporting block shaft seat (15) is fixedly installed at one end of the second lower forming block (14), and movable supporting blocks (16) are arranged on two sides of the movable supporting block (15), top fixed mounting hydro-cylinder support (17) of activity tray (16), the inside fixed mounting of hydro-cylinder support (17) has core-pulling frame (18), the bottom swing joint of core-pulling frame (18) has cylinder (2), the other end fixed mounting of core-pulling frame (18) has hydro-cylinder fixed block (19), the middle part fixed mounting of hydro-cylinder fixed block (19) has hydro-cylinder (20), the one end fixed mounting of hydro-cylinder (20) has chain arbor (21), the other end fixed mounting of chain arbor (21) has stopper (22) of loosing core.

2. The bending equipment for the aluminum alloy square beam part of the automobile as claimed in claim 1, wherein the bending equipment comprises: an upper base plate (25) is fixedly mounted at the upper end of the upper forming block (23), and an upper base plate (24) is fixedly mounted at the upper end of the upper base plate (25).

3. The bending equipment for the aluminum alloy square beam part of the automobile as claimed in claim 1, wherein the bending equipment comprises: the bottom of the upper forming block (23) is consistent with the shapes of the upper surfaces of the first lower forming block (9), the material supporting frame (12) and the second lower forming block (14), and the bottom of the upper forming block and the upper surfaces of the first lower forming block, the material supporting frame and the second lower forming block are mutually attached.

4. The bending equipment for the aluminum alloy square beam part of the automobile as claimed in claim 1, wherein the bending equipment comprises: the first guide pillar (4), the first nitrogen spring (5), the safety bolt (6), the second nitrogen spring (7) and the second guide pillar (8) are all installed below the material supporting frame (12) and are symmetrically distributed.

5. The bending equipment for the aluminum alloy square beam part of the automobile as claimed in claim 1, wherein the bending equipment comprises: the chain type core rod (21) adopts a rigid chain type structure, and the edge chamfer is round and smooth.