Pipe spinning structure

Abstract

The utility model discloses a pipe spinning structure, which belongs to the technical field of pipe forming and comprises a pipe and a spinning part, the pipe is rotatably arranged, the spinning part is a rotary wheel which is rotatably arranged, a plane part is convexly arranged on the periphery of the spinning part, and a convex pressing rib for spinning the outer wall of the pipe is arranged on the plane part. According to the structure, rotary extrusion acting force is applied to the outer wall of the pipe through the convex pressing ribs, so that the annular groove is formed in the outer wall of the pipe, meanwhile, rotary balance acting force is applied to the outer wall of the pipe through the plane part, rotation of the pipe and the spinning part is more stable, and therefore the problems of deformation and surface roughness of the annular groove are avoided, and the forming quality of the annular groove is improved; in addition, due to the fact that the pipe and the spinning part rotate, the convex pressing ribs can effectively apply rotating extrusion acting force to the outer wall of the pipe, the forming quality of the annular groove is further improved, the surface of the annular groove is bright and smooth, and the forming efficiency of the annular groove can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe forming, in particular to a pipe spinning structure. Background Art

[0002] The outer wall of the pipe in the prior art is provided with an annular groove, such as an integrally formed pipe structure disclosed in the utility model patent with Chinese patent number CN202320334662.7. In addition to realizing the connection and positioning between the pipe and other connecting pipes, the annular groove can also be used for the clamping fixture of the fixture, so that the pipe can be welded with other components to extend the use of the pipe. The above annular groove is mostly set on the outer wall of the pipe by spinning, but the existing spinning parts have a rotation pressure difference during operation, resulting in low molding efficiency and molding quality of the annular groove. Therefore, it is necessary to further improve it. Utility Model Content

[0003] The utility model aims to provide a pipe spinning structure to overcome the shortcomings of the prior art.

[0004] A pipe spinning structure designed for this purpose includes a pipe and a spinning part, wherein the pipe is rotatably arranged, and the spinning part is a rotatably arranged rotating wheel with a planar portion convexly arranged on its periphery, and the planar portion is provided with convex ribs for spinning the outer wall of the pipe.

[0005] The convex pressure rib is arranged at the middle position or one side of the plane portion.

[0006] The convex ribs are in arc shape, polygonal shape, or a combination of the above shapes.

[0007] The spinning part is made of metal material.

[0008] The surface of the planar portion and / or the convex rib is electroplated with a TINC coating.

[0009] The structure also includes a bracket, the bracket is provided with a groove, a rotating shaft is provided in the groove, a connecting hole is provided on the spinning part, the spinning part is located in the groove and is connected with the rotating shaft through the connecting hole.

[0010] A bottom plate is fixedly arranged on the bracket, and a bracket reciprocating driving device is connected through the bottom plate. The bracket reciprocating driving device drives the bottom plate, the bracket and the spinning part to reciprocate in the direction of the pipe.

[0011] The structure further comprises a clamping assembly and a positioning rotating member. One end of the pipe is clamped and positioned on the clamping assembly, and the other end is positioned and rotated with or separated from the positioning rotating member.

[0012] The clamping assembly includes a fixed chuck and a positioning core, the fixed chuck is provided with a clamping part, the positioning core is fixedly arranged on the fixed chuck and provided with a rotation positioning part, one end of the pipe is positioned and inserted on the rotation positioning part and clamped on the clamping part, the positioning rotating member is provided with a disassembly and assembly positioning part, and the other end of the pipe is positioned and rotatably matched or separated with the disassembly and assembly positioning part.

[0013] The fixing chuck is connected to a rotary reciprocating driving device, and the rotary reciprocating driving device drives the fixing chuck, the positioning core, and the pipe to rotate and reciprocate toward the direction of the positioning rotating member.

[0014] The utility model improves the above structure and utilizes the convex pressure ribs to apply a rotational extrusion force to the outer wall of the pipe, so that an annular groove is formed on the outer wall of the pipe. At the same time, the flat portion is used to apply a rotational balancing force to the outer wall of the pipe, so that the rotation of the pipe and the spun part is more stable, thereby avoiding the problems of deformation of the annular groove and surface roughness, so as to improve the forming quality of the annular groove. In addition, since the pipe and the spun part are both rotatable, the convex pressure ribs can effectively apply a rotational extrusion force to the outer wall of the pipe, which not only further improves the forming quality of the annular groove, making the surface of the annular groove bright and smooth, but also improves the forming efficiency of the annular groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] See also Figure 1 The pipe spinning structure includes a pipe 1 and a spinning part 2. The pipe 1 is rotatably arranged. The spinning part 2 is a rotatably arranged rotating wheel, and a plane part 3 is convexly arranged on its periphery. The plane part 3 is provided with convex ribs 4 for spinning the outer wall of the pipe 1.

[0019] This embodiment utilizes the convex rib 4 to apply a rotational extrusion force to the outer wall of the tube 1, so that an annular groove 1.1 is formed on the outer wall of the tube 1. At the same time, the flat portion 3 is used to apply a rotational balancing force to the outer wall of the tube 1, so that the rotation of the tube 1 and the spun part 2 is more stable, thereby avoiding the deformation and surface roughness of the annular groove 1.1, so as to improve the forming quality of the annular groove 1.1. In addition, since the tube 1 and the spun part 2 are both rotatable, the convex rib 4 can effectively apply a rotational extrusion force to the outer wall of the tube 1, which not only further improves the forming quality of the annular groove 1.1, making the surface of the annular groove 1.1 bright and smooth, but also improves the forming efficiency of the annular groove 1.1.

[0020] As a preferred solution of this embodiment, it may also have the following additional technical features:

[0021] The convex rib 4 is arranged at the middle position or one side of the plane portion 3 .

[0022] The convex rib 4 is in an arc shape, a polygon shape, or a combination of the above shapes.

[0023] In this embodiment, the convex rib 4 is arc-shaped and convexly arranged in the middle position of the flat portion 3, that is, there are flat portions 3 on both sides of the convex rib 4, so that when the convex rib 4 squeezes the outer wall of the tube 1, the flat portions 3 on both sides can also balance with the outer wall of the tube 1 respectively.

[0024] The spun part 2 is made of metal material.

[0025] The surface of the plane portion 3 and / or the convex rib 4 is electroplated with a TINC coating.

[0026] In this embodiment, the spun part 2 is made of metal material, and TINC coating is electroplated on the surface of the plane part 3 and the convex rib 4 respectively to improve the strength of the spun part 2 and avoid deformation and wear during operation. At the same time, the setting of the TINC coating can also ensure that the surface of the plane part 3 and the convex rib 4 is smooth and beautiful, so as to avoid friction problems of the annular groove 1.1 during extrusion molding, thereby further ensuring that the surface of the extruded annular groove 1.1 is bright and smooth.

[0027] The structure further comprises a bracket 5, the bracket 5 is provided with a groove, a rotating shaft 6 is provided in the groove, a connecting hole is provided on the spinning part 2, the spinning part 2 is located in the groove and is connected with the rotating shaft 6 through the connecting hole.

[0028] A bottom plate 7 is fixedly provided on the bracket 5 , and a bracket reciprocating driving device is connected via the bottom plate 7 . The bracket reciprocating driving device drives the bottom plate 7 , the bracket 5 , and the spinning part 2 to reciprocate toward the direction of the pipe 1 .

[0029] In this embodiment, the spinning part 2 rotates in the groove of the bracket 5 through the cooperation of the connecting hole and the rotating shaft 6. In addition, the outer end of the spinning part 2 at least partially extends out of the groove. The reciprocating drive device of the bracket can be a telescopic cylinder or a motor-driven slide rail, which can drive the base plate 7, the bracket 5, and the spinning part 2 to reciprocate in the direction of the pipe 1 during operation, so as to eventually make the spinning part 2 approach or move away from the pipe 1.

[0030] This structure also includes a clamping assembly and a positioning rotating member 8. One end of the pipe 1 is clamped and positioned on the clamping assembly, and the other end is positioned and rotated with or separated from the positioning rotating member 8, thereby enabling the two ends of the pipe 1 to be effectively positioned on the same axis.

[0031] The clamping assembly includes a fixed chuck 9 and a positioning core 10. The fixed chuck 9 is provided with a clamping portion. The positioning core 10 is fixedly arranged on the fixed chuck 9 and is provided with a rotation positioning portion 11. One end of the pipe 1 is positioned and inserted on the rotation positioning portion 11 and clamped on the clamping portion. A disassembly and assembly positioning portion 12 is provided on the positioning rotating member 8. The other end of the pipe 1 is positioned and rotated to cooperate or separate with the disassembly and assembly positioning portion 12.

[0032] In this embodiment, the rotation positioning portion 11 and the disassembly positioning portion 12 are arranged on the same axis.

[0033] The inner hole at one end of the pipe 1 is positioned by the rotation positioning part 11, and the outer wall is clamped by the clamping part. The other end of the pipe 1 is rotated or separated with the disassembly positioning part 12 to ensure that the two ends of the pipe 1 will not shake or swing when rotating.

[0034] The fixed chuck 9 is connected to a rotary reciprocating driving device, which drives the fixed chuck 9, the positioning core 10, and the pipe 1 to rotate and reciprocate toward the positioning rotating member 8.

[0035] In this embodiment, the rotary reciprocating drive device includes a rotary motor and a telescopic cylinder or a motor-driven slide rail. The rotary motor is cooperatively connected with the telescopic cylinder or the motor-driven slide rail and is drivingly connected with the fixed clamp 9 .

[0036] When working, the rotating motor can drive the fixed chuck 9, the positioning core 10, and the pipe 1 to rotate. When working, the telescopic cylinder or the motor-driven slide rail can drive the rotating motor, the fixed chuck 9, the positioning core 10, and the pipe 1 to reciprocate toward the positioning rotating part 8, so as to finally make the pipe 1 rotate and reciprocate toward the positioning rotating part 8.

[0037] In this embodiment, the reciprocating direction of the support reciprocating drive device and the reciprocating direction of the rotary reciprocating drive device are perpendicular to each other, so that the convex rib 4 and the plane portion 3 act perpendicularly on the outer wall of the pipe 1 .

[0038] When the spun part 2 acts on the pipe 1 through the convex ribs 4 and the flat surface part 3 , it can rotate along with the pipe 1 .

[0039] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pipe spinning structure, comprising a pipe (1) and a spinning part (2), characterized in that: The pipe (1) is rotatably arranged, and the spinning part (2) is a rotatably arranged rotating wheel, the periphery of which is convexly provided with a flat surface portion (3), and the flat surface portion (3) is provided with a convex pressing rib (4) for spinning the outer wall of the pipe (1).

2. The pipe spinning structure according to claim 1, characterized in that: The convex pressure rib (4) is arranged in the middle position or on one side of the plane portion (3).

3. The pipe spinning structure according to claim 1, characterized in that: The convex rib (4) is in an arc shape, a polygonal shape, or a combination of the above shapes.

4. The pipe spinning structure according to claim 1, characterized in that: The spun part (2) is made of metal material.

5. The pipe spinning structure according to claim 1, characterized in that: The surface of the planar portion (3) and / or the convex rib (4) is electroplated with a TINC coating.

6. The pipe spinning structure according to any one of claims 1 to 5, characterized in that: The invention also comprises a bracket (5), wherein the bracket (5) is provided with a groove, wherein a rotating shaft (6) is provided in the groove, and wherein a connecting hole is provided on the spinning component (2), wherein the spinning component (2) is located in the groove and is connected to the rotating shaft (6) through the connecting hole.

7. The pipe spinning structure according to claim 6, characterized in that: A bottom plate (7) is fixedly arranged on the bracket (5), and a bracket reciprocating drive device is connected via the bottom plate (7), and the bracket reciprocating drive device drives the bottom plate (7), the bracket (5), and the spinning component (2) to reciprocate in the direction of the pipe (1).

8. The pipe spinning structure according to claim 7, characterized in that: It also comprises a clamping assembly and a positioning rotating member (8), one end of the pipe (1) is clamped and positioned on the clamping assembly, and the other end is positioned and rotated with or separated from the positioning rotating member (8).

9. The pipe spinning structure according to claim 8, characterized in that: The clamping assembly comprises a fixed chuck (9) and a positioning core (10), wherein the fixed chuck (9) is provided with a clamping portion, the positioning core (10) is fixedly arranged on the fixed chuck (9) and provided with a rotation positioning portion (11), one end of the pipe (1) is positioned and inserted on the rotation positioning portion (11) and clamped on the clamping portion, the positioning rotating member (8) is provided with a disassembly positioning portion (12), and the other end of the pipe (1) is rotationally engaged with or separated from the disassembly positioning portion (12).

10. The pipe spinning structure according to claim 9, characterized in that: The fixed chuck (9) is connected to a rotary reciprocating drive device, and the rotary reciprocating drive device drives the fixed chuck (9), the positioning core (10), and the pipe (1) to rotate and reciprocate in the direction of the positioning rotating member (8).

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