CN219188390U

CN219188390U - Semi-automatic pipe expanding device

Info

Publication number: CN219188390U
Application number: CN202222356909.3U
Authority: CN
Inventors: 张楚坤; 余叶飞; 刘龙泉
Original assignee: Jiangxi Ruike Refrigeration Technology Co ltd
Current assignee: Jiangxi Ruike Refrigeration Technology Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-06-16
Anticipated expiration: 2032-09-06

Abstract

The utility model relates to the technical field of pipeline processing, and provides a semi-automatic pipe expanding device, which comprises a pedestal; the inner side of the upper surface of the pedestal is fixedly provided with a first cylinder fixing plate, a second cylinder fixing plate is arranged on the right side of the upper surface of the pedestal, a clamp base is positioned in the center of the upper surface of the pedestal, a positioning pin is positioned on the right side of the upper surface of the clamp base, and a copper pipe clamp is positioned on the positioning pin; according to the requirements of the workpieces, different sizes are adjusted, the device is flexible to use, the nonstandard workpieces are convenient to process, the uniformity of the sizes of the expansion pipes is guaranteed, the structure is simple, and the processing can be realized only by providing compressed air as a cylinder power source; the method has the advantages that the requirement of standardization of the expanded pipe size of the pipe expander is met, meanwhile, the processing efficiency and the applicability can be greatly improved, and the bottleneck of production energy restriction is solved; moreover, the device cost input is low, reduces the fixed asset input of enterprise, and maintains simple and conveniently and need not special personnel to maintain, reduces the cost of labor, indirectly reduces manufacturing cost.

Description

Semi-automatic pipe expanding device

Technical Field

The utility model relates to the technical field of pipeline processing, in particular to a semi-automatic pipe expanding device.

Background

In the production process of the heat exchanger, the copper pipes are connected in a brazing mode to form the integral heat exchanger, the copper pipes are connected with the copper pipes in a brazing mode after being matched through flaring, the welding quality is guaranteed to reach the use requirement, the general standard size can be automatically processed by adopting a machine, the efficiency is high, and meanwhile the unified quality of the processed size is guaranteed. However, for some heat exchangers with nonstandard specifications or special structures, the required copper pipe flaring is difficult to machine, time-consuming and labor-consuming, and causes bottlenecks to production, so that the improvement of production efficiency is affected;

therefore, it is necessary to develop a low-cost pipe expanding device which can simplify the processing technology, improve the efficiency and realize standardized production.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a semi-automatic pipe expanding device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a semi-automatic pipe expanding device comprises a pedestal, a first cylinder fixing plate, a second cylinder fixing plate, a clamp base, a positioning pin, a copper pipe clamp, a positioning plate, a pipe expanding cylinder, a conical expansion head and a clamping cylinder;

the inner side of the upper surface of the pedestal is fixedly provided with a first air cylinder fixing plate, a second air cylinder fixing plate is arranged on the right side of the upper surface of the pedestal, a clamp base is arranged in the center of the upper surface of the pedestal, a locating pin is arranged on the right side of the upper surface of the clamp base, a copper pipe clamp is arranged on the locating pin, a locating plate is arranged on the left side of the upper surface of the pedestal, a clamping air cylinder is arranged on the bottom surface of the first air cylinder fixing plate, the output end of the clamping air cylinder is fixedly arranged on the upper surface of the copper pipe clamp, a pipe expanding air cylinder is arranged on the second air cylinder fixing plate, and a conical expansion head is arranged on the pipe expanding air cylinder;

the locating plate is L-shaped, two rectangular boxes are arranged at the bottom of the locating plate in a penetrating mode, locating bolts are arranged in the rectangular boxes in a penetrating mode, and the locating bolts are connected to the pedestal in a threaded mode.

Preferably, the center of the upper surface of the clamp base and the bottom surface of the copper pipe clamp are provided with semicircular grooves, and when the copper pipe clamp is attached to the upper surface of the clamp base, the two semicircular grooves form a circular groove.

Preferably, the conical expansion head is positioned on the same straight line with the center of the circular groove formed by the clamp base and the copper pipe clamp.

Preferably, the diameter of the bolt head of the positioning bolt is larger than the width of the rectangular box.

Preferably, a plurality of mounting boxes are embedded in the semicircular grooves on the upper surface of the clamp base and the bottom surface of the copper pipe clamp, springs are fixedly arranged in the mounting boxes, and rubber columns are fixedly arranged at the other ends of the springs.

Preferably, when the spring is in a natural extension state, the rubber column extends out of the mounting box, and when the spring is in a maximum compression state, the rubber column is embedded in the mounting box.

Preferably, one end of the rubber column, which is far away from the spring, is provided with a sand grinding layer.

The beneficial effects are that:

1. different sizes can be adjusted according to the requirements of the workpieces, the device is flexible to use, convenient to process nonstandard workpieces, capable of guaranteeing the uniformity of the sizes of the expansion pipes, simple in structure and capable of achieving processing by only providing compressed air as a cylinder power source; the method has the advantages that the requirement of standardization of the expanded pipe size of the pipe expander is met, meanwhile, the processing efficiency and the applicability can be greatly improved, and the bottleneck of production energy restriction is solved; moreover, the device cost input is low, reduces the fixed asset input of enterprise, and maintains simple and conveniently and need not special personnel to maintain, reduces the cost of labor, indirectly reduces manufacturing cost.

2. Through being provided with spring and rubber post, when anchor clamps base cooperation copper pipe anchor clamps press from both sides work piece tight, the rubber post can imbed with install in the case, the spring be in compression state this moment, the resilience force of spring can make the rubber post hug closely in the surface of work piece, increases the frictional force after anchor clamps base cooperation copper pipe anchor clamps hold the work piece with the work piece, prevents the work piece in the in-process of processing, pastes in one side of locating plate and appears impaired condition because of the extrusion, guarantees the quality after the work piece processing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of the overall structure of the present utility model.

Fig. 3 is a schematic view of a processing state of the present utility model.

Fig. 4 is a second schematic view of the processing state of the present utility model.

Fig. 5 is a schematic cross-sectional view of a partial structure of the present utility model.

Legend description: 1. a pedestal; 101. a first cylinder fixing plate; 102. a cylinder fixing plate II; 2. a clamp base; 201. a positioning pin; 202. copper pipe clamp; 203. a mounting box; 204. a spring; 205. a rubber column; 3. a positioning plate; 301. a rectangular box; 302. positioning bolts; 4. a tube expansion cylinder; 5. a conical expansion head; 6. and (5) clamping the air cylinder.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

Embodiment one:

referring to fig. 1 to 4, a semiautomatic pipe expanding device comprises a pedestal 1, a first cylinder fixing plate 101, a second cylinder fixing plate 102, a clamp base 2, a positioning pin 201, a copper pipe clamp 202, a positioning plate 3, a pipe expanding cylinder 4, a conical expansion head 5 and a clamping cylinder 6;

the inner side of the upper surface of the pedestal 1 is fixedly provided with a first cylinder fixing plate 101, a second cylinder fixing plate 102 is arranged on the right side of the upper surface of the pedestal 1, a clamp base 2 is arranged in the center of the upper surface of the pedestal 1, a positioning pin 201 is arranged on the right side of the upper surface of the clamp base 2, a copper pipe clamp 202 is arranged on the positioning pin 201, a positioning plate 3 is arranged on the left side of the upper surface of the pedestal 1, a clamping cylinder 6 is arranged on the bottom surface of the first cylinder fixing plate 101, the output end of the clamping cylinder 6 is fixedly arranged on the upper surface of the copper pipe clamp 202, a expansion cylinder 4 is arranged on the second cylinder fixing plate 102, and a conical expansion head 5 is arranged on the expansion cylinder 4;

the locating plate 3 comprises a rectangular box 301 and locating bolts 302, the locating plate 3 is L-shaped, two rectangular boxes 301 are arranged at the bottom of the locating plate 3 in a penetrating mode, the locating bolts 302 are arranged in the rectangular boxes 301 in a penetrating mode, and the locating bolts 302 are connected to the pedestal 1 in a threaded mode.

Wherein, the upper surface center of anchor clamps base 2 and the bottom surface of copper pipe anchor clamps 202 all are provided with the semicircle groove, and when copper pipe anchor clamps 202 paste in the upper surface of anchor clamps base 2, two semicircle grooves form the circular slot, make things convenient for copper pipe anchor clamps 202 cooperation anchor clamps base 2 to the copper pipe clamp.

The centers of the conical expansion heads 5 and the circular grooves formed by the clamp base 2 and the copper pipe clamp 202 are positioned on the same straight line, so that the conical expansion heads 5 can conveniently process copper pipes clamped by the clamp base 2 and the copper pipe clamp 202.

The diameter of the bolt head of the positioning bolt 302 is larger than the width of the rectangular box 301, and when the positioning bolt 302 is screwed down, the positioning bolt is tightly attached to the upper surface of the positioning plate 3, so that the effect of fixing the position of the positioning plate 3 is achieved.

When the clamp is used, the expansion pipe cylinder 4 and the clamping cylinder 6 are connected with air pipes, then workpieces are placed in the semicircular grooves of the clamp base 2, the positioning bolts 302 are loosened according to the lengths of the workpieces, the positioning plate 3 is moved left and right, the positions of the positioning plate 3 are adjusted, and the positioning bolts 302 are tightened to fix the positions of the positioning plate 3, so that the workpieces with different sizes and lengths can be conveniently machined; after the workpiece is placed, firstly, the clamping cylinder 6 is ventilated, the copper pipe clamp 202 downwards clamps the workpiece along the positioning pin 201, secondly, the pipe expanding cylinder 4 is ventilated, the conical expansion head 5 axially moves to prop against the inner wall of the workpiece, and the copper pipe joint is expanded; after the pipe expanding action is completed, closing the air passage of the expansion pipe cylinder 4, returning the conical expansion head 5 along with the cylinder to reset, closing the air passage of the clamping cylinder 6, moving the copper pipe clamp 202 upwards to reset, and finally taking out the workpiece, thus performing cyclic operation.

Embodiment two:

referring to fig. 1 to 5, one difference from the embodiment is that:

wherein, all imbeds in the semicircle inslot of anchor clamps base 2 upper surface and copper pipe anchor clamps 202 bottom surface and is provided with a plurality of install bin 203, and install bin 203 internal fixation is provided with spring 204, and the other end of spring 204 is fixedly provided with rubber column 205.

When the spring 204 is in a natural extension state, the rubber column 205 extends out of the mounting box 203, and when the spring 204 is in a maximum compression state, the rubber column 205 is embedded into the mounting box 203, and the rubber column 205 does not affect clamping of the clamp base 2 and the semicircular groove on the copper pipe clamp 202 to a workpiece.

Wherein, the one end that the rubber post 205 kept away from spring 204 is provided with the frosted layer, increases the frictional force of rubber post 205 and work piece.

Through being provided with spring 204 and rubber post 205, when anchor clamps base 2 cooperation copper pipe anchor clamps 202 press from both sides the work piece tightly, rubber post 205 can imbed with install bin 203 in, spring 204's this moment is in compression state, and spring 204's resilience force can make rubber post 205 hug closely in the surface of work piece, increases the frictional force after anchor clamps base 2 cooperation copper pipe anchor clamps 202 hold the work piece, prevents the work piece in the course of working, pastes in the one side of locating plate 3 and appear impaired condition because of the extrusion, guarantees the quality after the work piece processing.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims

1. A semiautomatic pipe expanding device, which is characterized in that; the device comprises a pedestal (1), a first cylinder fixing plate (101), a second cylinder fixing plate (102), a clamp base (2), a positioning pin (201), a copper pipe clamp (202), a positioning plate (3), a pipe expanding cylinder (4), a conical expansion head (5) and a clamping cylinder (6);

the inner side of the upper surface of the pedestal (1) is fixedly provided with a first air cylinder fixing plate (101), a second air cylinder fixing plate (102) is arranged on the right side of the upper surface of the pedestal (1), a clamp base (2) is arranged in the center of the upper surface of the pedestal (1), a positioning pin (201) is arranged on the right side of the upper surface of the clamp base (2), a copper pipe clamp (202) is arranged on the positioning pin (201), a positioning plate (3) is arranged on the left side of the upper surface of the pedestal (1), a clamping air cylinder (6) is arranged on the bottom surface of the first air cylinder fixing plate (101), the output end of the clamping air cylinder (6) is fixedly arranged on the upper surface of the copper pipe clamp (202), a bulging pipe air cylinder (4) is arranged on the second air cylinder fixing plate (102), and a conical bulging head (5) is arranged on the bulging pipe air cylinder (4);

the locating plate (3) comprises rectangular boxes (301) and locating bolts (302), the locating plate (3) is L-shaped, two rectangular boxes (301) are arranged at the bottom of the locating plate (3) in a penetrating mode, locating bolts (302) are arranged in the rectangular boxes (301) in a penetrating mode, and the locating bolts (302) are connected to the pedestal (1) in a threaded mode.

2. A semiautomatic pipe expanding device according to claim 1, characterized in that: the center of the upper surface of the clamp base (2) and the bottom surface of the copper pipe clamp (202) are respectively provided with a semicircular groove, and when the copper pipe clamp (202) is attached to the upper surface of the clamp base (2), the two semicircular grooves form a circular groove.

3. A semiautomatic pipe expanding device according to claim 2, characterized in that: the conical expansion head (5) is positioned on the same straight line with the center of a circular groove formed by the clamp base (2) and the copper pipe clamp (202).

4. A semiautomatic pipe expanding device according to claim 1, characterized in that: the diameter of the bolt head of the positioning bolt (302) is larger than the width of the rectangular box (301).

5. A semiautomatic pipe expanding device according to claim 2, characterized in that: a plurality of mounting boxes (203) are embedded in the semicircular grooves on the upper surface of the clamp base (2) and the bottom surface of the copper pipe clamp (202), springs (204) are fixedly arranged in the mounting boxes (203), and rubber columns (205) are fixedly arranged at the other ends of the springs (204).

6. The semiautomatic pipe expanding device according to claim 5, wherein: when the spring (204) is in a natural extension state, the rubber column (205) extends out of the mounting box (203), and when the spring (204) is in a maximum compression state, the rubber column (205) is embedded into the mounting box (203).

7. The semiautomatic pipe expanding device according to claim 6, wherein: one end of the rubber column (205) far away from the spring (204) is provided with a sand grinding layer.