CN215657273U - Large-caliber ultrathin-wall elbow processing equipment - Google Patents

Abstract

The utility model discloses large-caliber ultrathin-wall elbow processing equipment which comprises a workbench bottom plate, wherein a lower template mounting seat is mounted on the upper end surface of the workbench bottom plate, a downward-pressing hydraulic rod supporting plate is mounted at the top of a guide supporting column, an upper template mounting seat is mounted on the lower end surface of a lifting plate, an elbow lower cavity is arranged inside the lower template, an elbow upper cavity is arranged inside the upper template, the elbow lower cavity and the elbow upper cavity are combined into a complete elbow cavity, side baffle slots are symmetrically formed in the lower template and positioned on two sides of the elbow lower cavity, and side baffles are symmetrically arranged in the upper template and positioned on two sides of the elbow upper cavity. Through adopting interior high pressure molding to make tubular product crooked through the template extrusion in the forming process, improved the efficiency that tubular product is crooked, the bulging greatly, improved productivity, set up the side shield moreover, the tubular product receives the extrusion bending in-process to restrict the horizontal increase of tubular product, avoids tubular product bending in-process both sides to surpass the mould die cavity, avoids influencing follow-up compound die.

Description

Large-caliber ultrathin-wall elbow processing equipment

Technical Field

The utility model belongs to the technical field of bent pipe internal high-pressure forming, and particularly relates to a large-caliber ultrathin-wall bent pipe machining device.

Background

The high-pressure forming in the pipe is an advanced forming technology developed in recent years, saves materials, has high strength, and is increasingly widely applied in the fields of aircraft manufacturing, automobile manufacturing and the like, wherein the high-pressure forming in the pipe is realized by filling a forming medium with certain pressure into a mold cavity after upper and lower molds are closed, pushing heads on the left side and the right side simultaneously convey pipe blank materials to the mold cavity from the left side and the right side, and the pipe blank is pressed into the mold cavity through internal pressurization and axial stress supplement under the combined action of the pressure of the forming medium and the supplement of the pushing heads, so that the part forming is realized. However, for the bent pipe fitting, the pipe fitting is firstly subjected to die assembly and then pressurized, so that the part with larger deformation of the pipe fitting is easy to crack;

the method is characterized in that the die is gradually closed in the high-pressure process in the pipe fitting, the pipe fitting is bent while being closed, the bending and expansion of the pipe fitting are realized, the deformation is uncontrollable due to the fact that the pipe fitting is locally pressed and deformed in the bending process, the bent pipe fitting with a wide width is easily generated in the bending process, and the two sides of the bent pipe fitting exceed the die cavity to influence the subsequent die closing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide large-caliber ultrathin-wall elbow processing equipment to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a heavy-calibre ultra-thin wall return bend processing equipment, includes the workstation bottom plate, workstation bottom plate up end installation lower bolster mount pad, install the lower bolster on the lower bolster mount pad, the up end edge of workstation bottom plate is fixed and is set up a plurality of direction support columns, the hydraulic stem backup pad is pushed down in the top installation of direction support column, the hydraulic stem is pushed down in the mid-mounting of pushing down the hydraulic stem backup pad, the output fixed connection lifter plate of hydraulic stem pushes down, the lower terminal surface installation cope match-plate pattern mount pad of lifter plate, the lower terminal surface installation cope match-plate pattern of cope match-plate pattern mount pad.

The inside of lower bolster sets up die cavity under the return bend, the inside of cope match-plate pattern sets up die cavity on the return bend, die cavity and return bend go up the die cavity and make up into complete return bend die cavity under the return bend, the bilateral symmetry that just is located die cavity under the return bend in the lower bolster has seted up the side shield slot, the inside of cope match-plate pattern just is located the return bend bilateral symmetry of die cavity sets up the side shield, side shield and side shield slot looks adaptation.

And high-pressure liquid injection mechanisms are symmetrically arranged on two sides of the lower template.

Preferably, the guide support columns slide through the edge of the lifter plate.

Preferably, the high-pressure liquid injection mechanism comprises a side hydraulic rod and injection rods, the injection rods are arranged at the output ends of the side hydraulic rods, and one of the injection rods is of a hollow structure and is connected with the high-pressure supercharger through an explosion-proof pipeline.

Preferably, the side hydraulic rod is installed on a side hydraulic rod installation seat, and the side hydraulic rod installation seats are arranged on two sides of the bottom plate of the workbench.

Preferably, the two ends of the lower template and the upper side of the lower cavity of the elbow are provided with pipeline fixing rings.

The utility model has the technical effects and advantages that: through adopting interior high pressure molding to make tubular product crooked through the template extrusion in the forming process, improved the efficiency that tubular product is crooked, the bulging greatly, improved productivity, set up the side shield moreover, the tubular product receives the extrusion bending in-process to restrict the horizontal increase of tubular product, avoids tubular product bending in-process both sides to surpass the mould die cavity, avoids influencing follow-up compound die.

Drawings

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

FIG. 2 is a schematic diagram of the structure of the lower and upper templates of the present invention;

FIG. 3 is a schematic view of a lower template structure according to the present invention;

FIG. 4 is a schematic diagram of an upper plate structure according to the present invention.

In the figure: 1. a work table base plate; 2. a lower template mounting seat; 3. a guiding support column; 4. pressing down the hydraulic rod support plate; 5. pressing down a hydraulic rod; 6. a lifting plate; 7. an upper template mounting seat; 8. a lower template; 9. mounting a template; 10. a side hydraulic rod mounting seat; 11. a side hydraulic lever; 12. an injection rod; 13. an explosion-proof pipe; 14. a lower cavity of the bent pipe; 15. a side baffle slot; 16. a side dam; 17. a pipeline fixing ring; 18. and the bent pipe is provided with a cavity.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model provides large-caliber ultrathin-wall elbow processing equipment as shown in figures 1-4, which comprises a workbench bottom plate 1, wherein a lower template mounting seat 2 is mounted on the upper end surface of the workbench bottom plate 1, a lower template 8 is mounted on the lower template mounting seat 2, a plurality of guide supporting columns 3 are fixedly arranged on the edge of the upper end surface of the workbench bottom plate 1, a pressing hydraulic rod supporting plate 4 is mounted at the tops of the guide supporting columns 3, a pressing hydraulic rod 5 is mounted in the middle of the pressing hydraulic rod supporting plate 4, the output end of the pressing hydraulic rod 5 is fixedly connected with a lifting plate 6, the guide supporting columns 3 penetrate through the edge of the lifting plate 6 in a sliding manner, the guide supporting columns 3 can support the pressing hydraulic rod supporting plate 4 and can also play a role in guiding the lifting plate 6, an upper template mounting seat 7 is mounted on the lower end surface of the lifting plate 6, and an upper template 9 is mounted on the lower end surface of the upper template mounting seat 7.

The inside of lower bolster 8 sets up return bend lower die cavity 14, the inside of cope match-plate pattern 9 sets up return bend upper die cavity 18, return bend lower die cavity 14 and return bend upper die cavity 18 make up into complete return bend die cavity, the bilateral symmetry that just is located return bend lower die cavity 14 in lower bolster 8 has seted up side shield slot 15, the inside of cope match-plate pattern 9 and the bilateral symmetry that is located return bend upper die cavity 18 set up side shield 16, side shield 16 and side shield slot 15 looks adaptation, side shield 16 pegs graft in side shield slot 15 behind the compound die.

8 bilateral symmetry of lower bolster sets up high-pressure liquid injection mechanism, high-pressure liquid injection mechanism includes side hydraulic stem 11, injection rod 12 installs the output at side hydraulic stem 11, one of them injection rod 12 is hollow structure and connects high-pressure booster through explosion-proof pipeline 13, high-pressure booster passes through circulation pulsation hydraulic forming control system control hydraulic pressure, realize hydraulic accurate control and stable control, high-pressure booster lets in high-pressure liquid through explosion-proof pipeline 13 in to injection rod 12, injection rod 12 pegs graft at the tubular product both ends of taking the shaping, just inject high-pressure liquid into the tubular product. Side hydraulic stem 11 installs on side hydraulic stem mount pad 10, and side hydraulic stem mount pad 10 sets up in the both sides of workstation bottom plate 1, and the both ends of lower bolster 8 and the upside that is located die cavity 14 under the return bend set up the solid fixed ring 17 of pipeline, and the solid fixed ring 17 of pipeline passes through the screw fixation on lower bolster 8 for preliminary fixed to the tubular product both ends before the compound die.

The large-caliber ultrathin-wall elbow processing equipment is used, firstly, a pipe is placed in an elbow lower cavity 14, two ends of the pipe are placed in a pipeline fixing ring 17, then an injection rod 12 is pushed through a side hydraulic rod 11, the injection rod 12 is inserted into two ends of the pipe and is sealed, a high-pressure booster introduces high-pressure liquid into the injection rod 12 through an explosion-proof pipeline 13, the high-pressure liquid is injected into the pipe, then an upper template 9 is pushed to move downwards through a downward-pressing hydraulic rod 5, the pipe is extruded through a protruding position of an elbow upper cavity 18, the pipe is gradually bent until the upper template 9 and a lower template 8 are matched, the hydraulic pressure is continuously increased at the moment, the pipe is expanded, the elbow lower cavity 14 and the elbow upper cavity 18 are completely attached, the bending and expansion of the pipe are completed, and then the pipe is cut into a 90-degree elbow.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (5)

1. The utility model provides a heavy-calibre ultra-thin wall tube bending equipment, includes workstation bottom plate (1), its characterized in that: a lower template mounting seat (2) is mounted on the upper end face of the workbench bottom plate (1), a lower template (8) is mounted on the lower template mounting seat (2), a plurality of guide supporting columns (3) are fixedly arranged on the edge of the upper end face of the workbench bottom plate (1), a pressing hydraulic rod supporting plate (4) is mounted at the top of each guide supporting column (3), a pressing hydraulic rod (5) is mounted in the middle of each pressing hydraulic rod supporting plate (4), the output end of each pressing hydraulic rod (5) is fixedly connected with a lifting plate (6), an upper template mounting seat (7) is mounted on the lower end face of each lifting plate (6), and an upper template (9) is mounted on the lower end face of each upper template mounting seat (7);

a bent pipe lower cavity (14) is arranged inside the lower template (8), a bent pipe upper cavity (18) is arranged inside the upper template (9), the bent pipe lower cavity (14) and the bent pipe upper cavity (18) are combined into a complete bent pipe cavity, side baffle slots (15) are symmetrically formed in the lower template (8) and positioned on two sides of the bent pipe lower cavity (14), side baffles (16) are symmetrically arranged inside the upper template (9) and positioned on two sides of the bent pipe upper cavity (18), and the side baffles (16) are matched with the side baffle slots (15);

and high-pressure liquid injection mechanisms are symmetrically arranged on two sides of the lower template (8).

2. The large-caliber ultra-thin wall elbow processing equipment according to claim 1, characterized in that: the guide supporting columns (3) penetrate through the edge of the lifting plate (6) in a sliding mode.

3. The large-caliber ultra-thin wall elbow processing equipment according to claim 1, characterized in that: the high-pressure liquid injection mechanism comprises a side hydraulic rod (11) and an injection rod (12), the injection rod (12) is installed at the output end of the side hydraulic rod (11), and one injection rod (12) is of a hollow structure and is connected with a high-pressure supercharger through an anti-explosion pipeline (13).

4. The large-caliber ultra-thin wall elbow processing equipment according to claim 3, characterized in that: the side hydraulic rod (11) is installed on the side hydraulic rod installation seat (10), and the side hydraulic rod installation seat (10) is arranged on two sides of the workbench bottom plate (1).

5. The large-caliber ultra-thin wall elbow processing equipment according to claim 1, characterized in that: and the two ends of the lower template (8) and the upper side of the lower cavity (14) of the elbow are provided with pipeline fixing rings (17).

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