CN211588275U

CN211588275U - Pipe expander

Info

Publication number: CN211588275U
Application number: CN202020053372.1U
Authority: CN
Inventors: 许卫东; 任伟江; 徐彬
Original assignee: WUXI DAJIN HIGH-PRECISION COLD-DRAWN STEEL TUBE CO LTD
Current assignee: WUXI DAJIN HIGH-PRECISION COLD-DRAWN STEEL TUBE CO LTD
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-09-29
Anticipated expiration: 2030-01-11

Abstract

The utility model provides a pipe expander, includes workstation, base, its characterized in that: the workbench is fixedly arranged on the base, the left side and the right side of the surface of the workbench are respectively provided with two hydraulic cylinders, the bottom surfaces of the hydraulic cylinders are fixedly connected with a bottom plate, the surface of the workbench is provided with a chute, the chute is connected with two screw rods in a rotating mode, two opposite ends of the two screw rods are respectively and fixedly provided with a first bevel gear, the front sides of the two first bevel gears are provided with second bevel gears meshed with the first bevel gears, and the front side surface of the workbench is rotatably connected with a first rotating connecting piece. The utility model discloses a set up helicitic texture in the adjustment box, two splint carry out the centre gripping to the pipe fitting about the control fixed, through rotating the carousel, make two pneumatic cylinders pass through the bottom plate and remove on the workstation, support the both ends mouth of pipe fitting until two moulds, the hydraulic stem of controlling the pneumatic cylinder again makes the mould push the pipe fitting port, carries out the expander, and both sides go on simultaneously, and two splint about the cooperation just so make the pipe fitting can not appear the deviation man-hour, can also accelerate the machining efficiency of pipe fitting simultaneously.

Description

Pipe expander

Technical Field

The utility model relates to a pipe expanding equipment technical field specifically is a pipe expander.

Background

When splicing the pipeline, because the diameter of pipeline is different, can not seal when leading to the concatenation, thereby need carry out special processing to the pipeline, make that the pipeline of two sections can be sealed better, the expander is to expand the pipe fitting terminal surface and draw the pipe under the normality, by the full-automatic pipe end processing machinery of the hydraulic pressure of integrated control's touch-control display screen control, change the mould and can carry out pipe end machine shaping such as expand the pipe, draw the pipe, swell, the upsetting muscle to the pipe fitting.

When the existing pipe expander expands a pipe port, because a stable clamping mechanism is not arranged, the deviation of a processed pipe fitting from an initial position is often caused, the pipe fitting is subjected to cross operation, and the traditional pipe expander can expand the pipe to one port at one time when expanding the pipe, so that the working efficiency is low. Accordingly, those skilled in the art have provided a pipe expander to solve the problems set forth in the background art described above.

Disclosure of Invention

An object of the utility model is to provide a pipe expander, through set up the helicitic texture in the regulating box, two splint carry out the centre gripping to the pipe fitting about the control fixed, through rotating the carousel, make two pneumatic cylinders pass through the bottom plate and remove on the workstation, support the both ends mouth of pipe fitting until two moulds, the hydraulic stem of controlling the pneumatic cylinder again makes the mould push the pipe fitting port, expand the pipe, both sides go on simultaneously, two splint about the cooperation, just so make the pipe fitting can not appear the deviation man-hour, can also accelerate the machining efficiency of pipe fitting simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a pipe expander, includes workstation, base, its characterized in that: the workbench is fixedly arranged on the base, the left side and the right side of the surface of the workbench are respectively provided with two hydraulic cylinders, the bottom surfaces of the hydraulic cylinders are fixedly connected with a bottom plate, the surface of the workbench is provided with a chute, the chute is rotatably connected with two screw rods II, two opposite ends of the two screw rods II are respectively and fixedly provided with a bevel gear I, the front sides of the two bevel gear I are provided with bevel gears II meshed with the bevel gears II, the front side surface of the workbench is rotatably connected with a first rotating connecting piece, one end of the first rotating connecting piece penetrates through the workbench and is fixedly connected with the bevel gears II, and the lower ends;

two be provided with the regulating box between the pneumatic cylinder, regulating box fixed mounting is on the workstation surface, and both ends are equipped with punch holder and lower plate respectively about the regulating box front side, and the regulating box leading flank has seted up three flutings, the equal fixedly connected with connecting plate of punch holder and lower plate trailing flank, vertical rotation is connected with two screw rods one in the regulating box, and the connecting plate sees through middle fluting fixedly connected with connecting block one, and the connecting plate left and right sides sees through both sides fluting sliding connection inside the regulating box, and the regulating box surface rotates and is connected with rotation connecting piece two, and rotation connecting piece two passes regulating box and upper end screw rod one fixed connection.

Furthermore, a hydraulic rod is arranged on the hydraulic cylinder, the front end of the hydraulic rod is fixedly connected with a mounting plate, and a pipe expanding die is fixedly mounted on the front side surface of the mounting plate.

Furthermore, the two connecting blocks are connected in the sliding groove in a sliding mode, and the two connecting blocks are respectively in threaded connection with the two screw rods.

Furthermore, a limiting ring is fixedly arranged at the joint of the two first screw rods, and the winding directions of the threads of the two first screw rods are opposite.

Furthermore, two the equal sliding connection of connecting block one is inside adjusting box, and two connecting block one respectively with two screw rod threaded connection.

Furthermore, a controller is fixedly installed on the workbench and is electrically connected with the two hydraulic cylinders respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up helicitic texture in the adjustment box, two splint carry out the centre gripping to the pipe fitting about the control fixed, through rotating the carousel, make two pneumatic cylinders pass through the bottom plate and remove on the workstation, support the both ends mouth of pipe fitting until two moulds, the hydraulic stem of controlling the pneumatic cylinder again makes the mould push the pipe fitting port, carries out the expander, and both sides go on simultaneously, and two splint about the cooperation just so make the pipe fitting can not appear the deviation man-hour, can also accelerate the machining efficiency of pipe fitting simultaneously.

Drawings

Fig. 1 is a schematic structural view of a pipe expander.

Fig. 2 is a schematic structural view of the inside of an adjustment box in a pipe expander.

Fig. 3 is a schematic view of an internal structure of a table in a pipe expander.

Fig. 4 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. a work table; 2. a base; 3. a controller; 4. a hydraulic cylinder; 5. mounting a plate; 6. a chute; 7. rotating the first connecting piece; 8. a lower splint; 9. rotating the second connecting piece; 10. an adjustment box; 11. a tube expanding die; 12. a hydraulic lever; 13. an upper splint; 14. a connecting plate; 15. a first connecting block; 16. a first screw rod; 17. a limiting ring; 18. grooving; 19. a base plate; 20. a second screw; 21. a first bevel gear; 22. a second bevel gear; 23. and a second connecting block.

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.

Please refer to fig. 1-4, in the embodiment of the present invention, a pipe expander, includes workstation 1,

base

2, 1 fixed mounting of workstation is on

base

2, and 1 surperficial left and right sides of workstation all is provided with two pneumatic cylinders 4, is provided with hydraulic stem 12 on the

pneumatic cylinder

4, and 12 front end fixedly connected with mounting panel 5 of hydraulic stem, 5 leading flank fixed mounting of mounting panel have pipe expanding die 11. Two hydraulic cylinders 4 push a pipe expanding die 11 into a port of a pipe fitting through hydraulic rods 12 to expand the pipe, the bottom surfaces of the hydraulic cylinders 4 are fixedly connected with a bottom plate 19, the surface of a workbench 1 is provided with a chute 6, two screw rods 20 are rotatably connected in the chute 6, two opposite ends of the two screw rods 20 are fixedly provided with bevel gears 21, the front sides of the two bevel gears 21 are provided with bevel gears 22 meshed with the bevel gears, the front side surface of the workbench 1 is rotatably connected with a first rotary connecting piece 7, one end of the first rotary connecting piece 7 penetrates through the workbench 1 and is fixedly connected with the bevel gears 22, the lower ends of the two bottom plates 19 are fixedly connected with second connecting blocks 23, the two second connecting blocks 23 are slidably connected in the chute 6, the two second connecting blocks 23 are respectively in threaded connection with the two screw rods 20, and the first rotary connecting piece 7 drives the two screw rods 20 to rotate through the bevel gears, the two screw rods 20 with opposite rotation directions drive the hydraulic cylinders 4 on the two bottom plates 19 to mutually approach through the second connecting block 23 until the pipe expanding dies 11 at the front ends of the two hydraulic cylinders 4 abut against two ports of the processed pipe;

an adjusting box 10 is arranged between the two hydraulic cylinders 4, the adjusting box 10 is fixedly arranged on the surface of the workbench 1, an upper clamping plate 13 and a lower clamping plate 8 are respectively arranged at the upper end and the lower end of the front side of the adjusting box 10, three grooves 18 are formed in the front side surface of the adjusting box 10, a connecting plate 14 is fixedly connected to the rear side surfaces of the upper clamping plate 13 and the lower clamping plate 8, two first screw rods 16 are vertically and rotatably connected in the adjusting box 10, a limiting ring 17 is fixedly arranged at the joint of the two first screw rods 16, the winding directions of threads of the two first screw rods 16 are opposite, a first connecting block 15 is fixedly connected to the connecting plate 14 through the middle groove 18, the first connecting block 15 is slidably connected to the inside of the adjusting box 10, the first connecting blocks 15 are respectively in threaded connection with the two first screw rods 16, the left side and the right side of the connecting plate 14 are slidably connected to the inside of the adjusting box 10 through the grooves, the second connecting piece 9 is rotated, the first screw rods 16 with opposite thread winding directions enable the upper clamping plate and the lower clamping plate to be close to each other through the first connecting block 15 until a machining pipe fitting between the two clamping plates is clamped, the controller 3 is fixedly installed on the workbench 1, the controller 3 is electrically connected with the two hydraulic cylinders 4 respectively, and the controller 3 controls the two hydraulic cylinders 4 to work.

The utility model discloses a theory of operation is:

when the pipe expander is used for pipe expanding, a processed pipe is placed on the lower clamp plate 8, the rotating connecting piece II 9 is rotated, the upper clamp plate and the lower clamp plate are close to each other through the connecting block I15 when the two screw threads wind around the screw rods I16 with opposite directions until the processed pipe between the two clamp plates is clamped, the rotating connecting piece I7 is rotated, the rotating connecting piece I7 drives the two screw rods II 20 to rotate through the bevel gear I21 and the bevel gear II 22, the two screw rods II 20 with opposite rotating directions drive the hydraulic cylinders 4 on the two bottom plates 19 to be close to each other through the connecting block II 23 until the pipe expanding dies 11 at the front ends of the two hydraulic cylinders 4 abut against two end ports of the processed pipe, the controller 3 controls the two hydraulic cylinders 4 to work, and the two hydraulic cylinders 4 push the pipe expanding dies 11 into the end ports of the pipe through the hydraulic.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a pipe expander, includes workstation (1), base (2), its characterized in that: the workbench (1) is fixedly arranged on the base (2), the left side and the right side of the surface of the workbench (1) are respectively provided with two hydraulic cylinders (4), the bottom surfaces of the hydraulic cylinders (4) are fixedly connected with a bottom plate (19), the surface of the workbench (1) is provided with a sliding chute (6), the sliding chute (6) is rotatably connected with two screw rods II (20), two opposite ends of the two screw rods II (20) are respectively and fixedly provided with a bevel gear I (21), the front sides of the two bevel gear I (21) are provided with bevel gears II (22) which are meshed with the bevel gears I, the front side surface of the workbench (1) is rotatably connected with a rotating connecting piece I (7), one end of the rotating connecting piece I (7) penetrates through the workbench (1) and is fixedly connected with the bevel gears II (22), and the lower ends;

an adjusting box (10) is arranged between the two hydraulic cylinders (4), the adjusting box (10) is fixedly arranged on the surface of the workbench (1), an upper clamping plate (13) and a lower clamping plate (8) are respectively arranged at the upper end and the lower end of the front side of the adjusting box (10), three slots (18) are arranged on the front side surface of the adjusting box (10), the rear side surfaces of the upper clamping plate (13) and the lower clamping plate (8) are fixedly connected with connecting plates (14), the adjusting box is characterized in that two first screw rods (16) are vertically and rotatably connected in the adjusting box (10), the connecting plate (14) penetrates through the middle groove (18) and is fixedly connected with a connecting block (15), the left side and the right side of the connecting plate (14) penetrate through the two side grooves (18) and are slidably connected inside the adjusting box (10), the surface of the adjusting box (10) is rotatably connected with a second rotating connecting piece (9), and the second rotating connecting piece (9) penetrates through the adjusting box (10) and is fixedly connected with the first upper screw rods (16).

2. A pipe expander as defined in claim 1, wherein: the pipe expanding die is characterized in that a hydraulic rod (12) is arranged on the hydraulic cylinder (4), the front end of the hydraulic rod (12) is fixedly connected with a mounting plate (5), and a pipe expanding die (11) is fixedly mounted on the front side face of the mounting plate (5).

3. A pipe expander as defined in claim 1, wherein: and the two second connecting blocks (23) are connected in the sliding groove (6) in a sliding manner, and the two second connecting blocks (23) are respectively in threaded connection with the two second screw rods (20).

4. A pipe expander as defined in claim 1, wherein: and a limiting ring (17) is fixedly arranged at the joint of the two first screw rods (16), and the winding directions of the threads of the two first screw rods (16) are opposite.

5. A pipe expander as defined in claim 1, wherein: the first connecting blocks (15) are connected inside the adjusting box (10) in a sliding mode, and the first connecting blocks (15) are connected with the first screw rods (16) in a threaded mode respectively.

6. A pipe expander as defined in claim 1, wherein: the hydraulic cylinder is characterized in that a controller (3) is fixedly mounted on the workbench (1), and the controller (3) is electrically connected with the two hydraulic cylinders (4) respectively.