CN215786250U - Copper pipe middle part expander device - Google Patents

Abstract

The utility model provides a copper pipe middle expanding device, and belongs to the technical field of machinery. A copper pipe middle part pipe expanding device comprises a die, an expanding assembly and a driving device, wherein the die is provided with a through die hole, and the die hole comprises an expanding groove; the die comprises an upper die and a lower die, wherein the upper die is provided with a first die cavity; the lower die is provided with a second die cavity corresponding to the first die cavity, wherein the first die cavity and the second die cavity form a die hole; the expansion assembly can extend into the die hole and expand in the expansion groove, the expansion assembly comprises a rotating frame, a pipe fitting and an extrusion piece, and the pipe fitting is fixed on the rotating frame; the pipe fitting is provided with two connecting parts which are symmetrically arranged at the end parts of the pipe fitting, the connecting parts can be bent, and the connecting parts are provided with expansion parts; the extrusion piece penetrates into the pipe fitting, and the end part of the extrusion piece is provided with an extrusion head; wherein the two expansion parts can be moved away from each other when the extrusion head presses the inner side of the two connection parts. The utility model has the advantages of high efficiency and good effect of expanding the copper pipe.

Description

Copper pipe middle part expander device

Technical Field

The utility model belongs to the technical field of machinery, and particularly relates to a copper pipe middle expanding device.

Background

The expander of copper pipe generally carries out the expander at the pipeline both ends, and current copper pipe deposits a mouthful expander, perhaps carries out the expander at the nearer position of the distance mouth of pipe of copper pipe, and in addition, traditional expander setting is when the expander of pipeline middle part, carries out the expander through a plurality of expansion pieces, and the easy one-tenth special-shaped pipe spare that widens.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, provides a device for expanding the middle part of a copper pipe, and solves the problems of high efficiency and good effect of expanding the copper pipe.

The purpose of the utility model can be realized by the following technical scheme:

a copper pipe middle expanding device is characterized by comprising

A die having a die bore therethrough, the die bore including an expansion slot;

the mold comprises

The upper die is provided with a first die cavity; and

the lower die is provided with a second die cavity corresponding to the first die cavity, wherein the first die cavity and the second die cavity form the die hole;

an expansion assembly capable of extending into the die hole and expanding within the expansion slot; and

the expansion assembly comprises

A rotating frame;

the pipe fitting is fixed on the rotating frame; the pipe fitting is provided with two connecting parts which are symmetrically arranged at the end parts of the pipe fitting, the connecting parts can be bent, and the connecting parts are provided with expansion parts; and

the extrusion piece penetrates into the pipe fitting, and an extrusion head is arranged at the end part of the extrusion piece;

wherein the two expansion parts can be moved away from each other when the extrusion head presses on the inner sides of the two connection parts;

and the driving device can drive the pipe fitting or/and the extrusion piece to horizontally move and drive the rotating frame to rotate.

In the above-mentioned copper pipe middle part expander device, also include

The lower die is fixed on the fixing frame; and

and the hydraulic device is connected with the upper die and drives the upper die to move.

In the copper pipe middle expanding device, the hydraulic device is a hydraulic cylinder.

In the copper pipe middle part pipe expanding device, the die hole is a straight hole.

In the copper pipe middle part pipe expanding device, the expanding part is detachably connected with the connecting part.

In the copper pipe middle expanding device, the expanding part is one of a hemisphere, a semi-cylinder, a semi-cone and a semi-circular truncated cone.

In the above copper pipe middle expanding device, the driving device comprises

The rotating frame is rotatably connected to the moving frame;

the first driving piece is in transmission connection with the rotating frame and can drive the rotating frame to rotate, and the first driving piece is fixed on the moving frame;

the second driving piece is fixed on the rotating frame and is in transmission connection with the extrusion piece and can drive the extrusion piece to move in the pipe fitting; and

and the third driving piece is connected with the movable frame and can drive the movable frame to move.

Compared with the prior art, the utility model has the following advantages:

the utility model can expand the pipe at any position of the copper pipe, and can expand the middle part of the copper pipe into a round pipeline, thereby being more beautiful. And the position of the formed copper pipe can be changed by the separable upper die and the lower die, and the pipe expanding treatment can be carried out at a plurality of positions of the copper pipe by the device.

Drawings

FIG. 1 is a schematic of the present invention.

Fig. 2 is a schematic view of the end of the expansion assembly.

Fig. 3 is a cross-sectional view a-a of fig. 1.

In the figure, 1, a mold; 11. an upper die; 12. a lower die; 13. a die hole; 131. an expansion slot; 2. an expansion assembly; 21. a pipe fitting; 211. a connecting portion; 22. an extrusion; 221. extruding the head; 23. an expansion section; 24. a rotating frame; 3. a drive device; 32. a first driving member; 33. a second driving member; 34. a second driving member; 35. a movable frame; 4. a fixed mount; 5. and a hydraulic device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the device for expanding the middle part of the copper pipe is characterized by comprising a die 1, an expansion assembly 2 and a driving device 3, wherein the die 1 is provided with a through die hole 13, and the die hole 13 comprises an expansion groove 131; the die 1 comprises an upper die 11 and a lower die 12, wherein the upper die 11 is provided with a first die cavity; the lower die 12 is provided with a second die cavity corresponding to the first die cavity, wherein the first die cavity and the second die cavity form a die hole 13; the expansion component 2 can extend into the die hole 13 and expand in the expansion groove 131, the expansion component 2 comprises a rotating frame 24, a pipe fitting 21 and an extrusion piece 22, and the pipe fitting 21 is fixed on the rotating frame 24; the pipe 21 is provided with two connecting parts 211 symmetrically arranged at the end part of the pipe 21, the connecting parts 211 can be bent, and the connecting parts 211 are provided with expansion parts 23; the extrusion piece 22 penetrates into the pipe fitting 21, and the end part of the extrusion piece 22 is provided with an extrusion head part 221; wherein the two expansion parts 23 can move away from each other when the pressing head 221 presses the inner side parts of the two connecting parts 211; the drive means 3 is capable of driving the pipe 21 or/and the press 22 horizontally and the turret 24 rotationally.

According to the utility model, a copper pipe is arranged in a die hole 13 of a die 1 and fixed, then an expansion component 2 extends into the copper pipe, then two connecting parts 211 are extruded through an extrusion part 22, an expansion part 23 on the connecting part 211 is gradually extruded to the inner wall of the copper pipe, then the expansion component 2 rotates under the driving of a driving device 3, and in the rotating process, the extrusion part 22 continuously moves and the expansion part 23 expands towards the outer side until the copper pipe expands to a preset size.

The utility model can expand the pipe at any position of the copper pipe, and can expand the middle part of the copper pipe into a round pipeline, thereby being more beautiful. The upper die 11 and the lower die 12 can be separated, so that the position of the formed copper pipe can be changed, and the pipe expanding treatment can be carried out at a plurality of positions of the copper pipe through the device.

In the utility model, the driving device 3 drives the expansion assembly 2 to horizontally move, including synchronous horizontal movement of the pipe 21 and the extrusion piece 22 or horizontal movement of the pipe 21 and the extrusion piece 22 without movement. The driving device 3 drives the expansion assembly 2 to rotate, so that the pipe member 21 and the extrusion member 22 are controlled to rotate simultaneously.

During the rotation of the pipe 21 and the pressing member 22, the pressing member 22 can move horizontally.

Specifically, the device also comprises a fixed frame 4 and a hydraulic device 5, wherein the lower die 12 is fixed on the fixed frame 4; the hydraulic device 5 is connected with the upper die 11 and drives the upper die 11 to move. The upper die 11 can be driven to move up and down through the hydraulic device 5, and the upper die 11 and the lower die 12 can be well sealed through the hydraulic device 5. After the upper die 11 and the lower die 12 are closed, the copper tube can be fixed and prevented from rotating in the tube expanding process.

Specifically, the hydraulic device 5 is a hydraulic cylinder. The pressing sealing device has a strong pressing sealing effect, and can well fix the copper pipe.

Specifically, the die hole 13 is a straight hole.

Specifically, the expansion portion 23 is detachably attached to the connection portion 211. The shape of the flared portion 23 can be changed as needed at equal intervals.

Specifically, the expansion portion 23 is one of a hemispherical shape, a semi-cylindrical shape, a semi-conical shape, and a semi-circular truncated cone. Other shapes may also be selected.

Specifically, the driving device 3 comprises a moving frame 35, a rotating frame 24, a first driving part 32, a second driving part 33 and a third driving part, wherein the rotating frame 24 is rotatably arranged on the moving frame 35, and the pipe piece 21 is fixedly connected with the rotating frame 24; the first driving piece 32 is in transmission connection with the rotating frame 24 and can drive the rotating frame to rotate, and the first driving piece 32 is fixed on the moving frame 35; the second driving piece 33 is fixed on the rotating frame 24, the second driving piece 33 is connected with the extrusion piece 22 in a transmission way and can drive the extrusion piece 22 to move in the pipe piece 21; the third driving member is connected to the movable frame 35 and can drive the movable frame 35 to move. The first drive member 32 drives the turret 24 and expansion assembly 2 for rotation and the second drive member 33 drives the extrusion 22 for movement. The third driving member can drive the moving frame 35, the first driving member 32, the second driving member 33, the rotating frame 24, the pipe 21 and the extrusion member 22 to simultaneously move horizontally. Further, the second driving member 33 and the third driving member are push rod motors, and the first driving member 32 is a step motor. The first drive member 32 is drivingly connected to the turret 24 via a gear arrangement.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Also, the meaning of "and/or" appearing throughout is to include three versions, exemplified by "A and/or B" including either version A, or version B, or versions in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims (7)

1. A copper pipe middle expanding device is characterized by comprising

A die (1), the die (1) having a die hole (13) therethrough, the die hole (13) including an expansion groove (131);

the mold (1) comprises

The upper die (11), the said upper die (11) has first die cavity; and

the lower die (12) is provided with a second die cavity corresponding to the first die cavity, and the first die cavity and the second die cavity form the die hole (13);

an expansion component (2), wherein the expansion component (2) can extend into the die hole (13) and expand in the expansion groove (131); and

the expansion assembly (2) comprises

A turret (24);

the pipe fitting (21), the said pipe fitting (21) is fixed on said turret (24); the pipe fitting (21) is provided with two connecting parts (211) symmetrically arranged at the end part of the pipe fitting (21), the connecting parts (211) can be bent, and the connecting parts (211) are provided with expansion parts (23);

a pressing piece (22), wherein the pressing piece (22) penetrates into the pipe fitting (21), and the end part of the pressing piece (22) is provided with a pressing head part (221);

wherein the two expansion parts (23) can be moved away from each other when the pressing head (221) presses the inner sides of the two connection parts (211);

a driving device (3), wherein the driving device (3) can drive the pipe (21) or/and the extrusion piece (22) to horizontally move and drive the rotating frame (24) to rotate.

2. The central copper tube expanding device according to claim 1, further comprising

The lower die (12) is fixed on the fixing frame (4); and

and the hydraulic device (5) is connected with the upper die (11) and drives the upper die (11) to move.

3. The middle expanding device for copper pipes according to claim 2, wherein the hydraulic device (5) is a hydraulic cylinder.

4. The middle expanding device for copper tubes according to claim 1, wherein the die holes (13) are straight holes.

5. The middle copper pipe expanding device according to claim 1, wherein the expanding portion (23) is detachably connected to the connecting portion (211).

6. The middle copper pipe expander according to claim 1, wherein said expander (23) is one of a semi-spherical, semi-cylindrical, semi-conical and semi-circular truncated cone.

7. Copper tube central expanding device according to claim 1, characterized in that said driving means (3) comprises

The rotating frame (24) is rotatably connected to the moving frame (35);

the first driving piece (32) is in transmission connection with the rotating frame (24) and can drive the rotating frame to rotate, and the first driving piece (32) is fixed on the moving frame (35);

a second driving member (33), wherein the second driving member (33) is fixed on the rotating frame (24), and the second driving member (33) is in transmission connection with the extrusion piece (22) and can drive the extrusion piece (22) to move in the pipe piece (21); and

and the third driving piece is connected with the moving frame (35) and can drive the moving frame (35) to move.

Images