Perforating device special for end opening of long and thin aluminum alloy fin tube

Abstract

The utility model relates to the technical field of aluminum alloy pipe preparation, in particular to a special punching device for an end opening of a slender aluminum alloy fin pipe, and aims to solve the problems that in the end face counter bore machining process of the slender aluminum alloy fin pipe at present, due to the lack of a special punching tool, end face counter bore machining is time-consuming and labor-consuming, and machining efficiency is high. And finally, the overall machining quality and efficiency of the pipe end face counter bores are reduced. According to the device, the special milling cutter is connected with the handheld electric drill, then the special milling cutter is rotationally and stably arranged in the handheld sleeve, and through the limiting and fixing effects of the bearing and the boss in the sleeve, a pipe end opening installed in the sleeve is tightly matched with the special milling cutter, so that in the milling cutter rotating process, the pipe end opening is tightly matched with the special milling cutter; and drilling, boring and chambering machining of the end opening of the pipe can be effectively and rapidly achieved, the convenience and efficiency of machining of the end opening of the thin and long aluminum alloy fin pipe are greatly improved, and then the overall efficiency and quality of machining of the end opening of the fin pipe are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy pipe preparation, in particular to a special punching device for the port of a slender aluminum alloy warped-sheet pipe. Background Art

[0002] The materials currently required for natural gas transmission pipelines require corrosion resistance, high temperature resistance, good toughness and strength. Aluminum alloy materials are used in offshore oil and natural gas pipelines, especially in deep-sea areas. The aluminum alloy gas pipeline has a slender shape, with heat dissipation teeth on the inner holes and heat dissipation teeth designed inside and outside the pipe mouth. It is also called warping pipe. The diameter of each pipe excluding the teeth is 40 mm and the length is more than 5 meters. The connection between the oil and gas pipes requires particularly good welding and sealing. After the pipe is extruded, the pipe end is machined. The process requires the lathe to turn the two ends of the pipe, and the fitter then mills the pipe end, and finally welds it to achieve the connection and sealing of the pipe. However, the ends of aluminum alloy pipes have higher dimensional tolerance requirements, roughness requirements and surface smoothness requirements during processing, and the inner hole of the pipe end is mainly equipped with a sealing ring during use, so the inner hole has higher tolerance requirements. The sealing ring is installed tightly against the inner hole, and the inner hole is not allowed to be too large or too small. This makes the inner hole of the aluminum alloy pipe end face of the natural gas transmission pipe have high dimensional accuracy during processing. However, due to the lack of dedicated aluminum alloy pipe end face inner hole processing tooling, the port processing efficiency and quality are usually low, which can easily affect the overall production efficiency of the pipe gas transmission. Utility Model Content

[0003] The utility model provides a special punching device for the port of a slender aluminum alloy warping tube, so as to solve the problems existing in the above background.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A special punching device for the port of a slender aluminum alloy warping tube includes a special milling cutter fixedly connected to a pistol drill, a sleeve is provided on the outer side of the special milling cutter, the special milling cutter is rotatably arranged in the sleeve, and a trachea port is provided in the sleeve and opposite to the special milling cutter, and the special milling cutter extends into the inner side of the trachea port.

[0006] Furthermore, a first bearing and a second bearing are fixedly provided in the sleeve, a spacer is provided between the first bearing and the second bearing, and the special milling cutter is inserted into the first bearing, the second bearing and the spacer.

[0007] Furthermore, a retaining spring is provided on one side of the sleeve close to the first bearing, and the first bearing is fixed by the retaining spring. A boss is provided on one side of the sleeve close to the second bearing, and the second bearing and the trachea port are both arranged close to the boss.

[0008] The utility model has the following beneficial effects:

[0009] The utility model provides a special punching device for the port of a slender aluminum alloy warp tube. The device connects a special milling cutter and a handheld electric drill, and then rotates the special milling cutter and firmly sets it in a hand-held sleeve. Through the limiting and fixing effects of the bearings and bosses in the sleeve, the pipe port installed in the sleeve and the special milling cutter are tightly fitted, so that during the rotation of the milling cutter, the drilling, boring and reaming of the pipe port can be effectively and quickly realized, which greatly improves the convenience and efficiency of the processing of the slender aluminum alloy warp tube port, thereby ensuring the overall efficiency and quality of the processing of the warp tube port, and solves the problem that in the current process of countersinking the end face of slender aluminum alloy warp tubes, the lack of special punching tooling usually leads to time-consuming and labor-intensive end face countersinking processing, which ultimately reduces the overall processing quality and efficiency of the pipe end face countersinking. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] The meanings of the reference numerals are as follows:

[0012] 1. Pistol drill; 2. Special milling cutter; 3. Circlip; 4. Sleeve; 5. First bearing; 6. Spacer; 7. Second bearing; 8. Boss; 9. Trachea port. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1 As shown, a special punching device for the port of a slender aluminum alloy warping tube includes a special milling cutter 2 fixedly connected to a pistol drill 1, a sleeve 4 is provided on the outer side of the special milling cutter 2, and the special milling cutter 2 is rotatably set in the sleeve 4. A trachea port 9 is also provided in the sleeve 4 and opposite to the special milling cutter 2, and the special milling cutter 2 extends into the inner side of the trachea port 9.

[0015] A first bearing 5 and a second bearing 7 are fixedly sleeved in the sleeve 4 , a spacer sleeve 6 is provided between the first bearing 5 and the second bearing 7 , and the special milling cutter 2 is inserted into the first bearing 5 , the second bearing 7 and the spacer sleeve 6 .

[0016] A retaining spring 3 is provided on one side of the sleeve 4 close to the first bearing 5, and the first bearing 5 is fixed by the retaining spring 3. A boss 8 is provided on one side of the sleeve 4 close to the second bearing 7, and the second bearing 7 and the trachea port 9 are both arranged close to the boss 8.

[0017] After the cam 1 is swung open, the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam 1 is swung open, and the cam

Claims

1. A special punching device for the end of a slender aluminum alloy warping tube, characterized by: The invention comprises a special milling cutter (2) fixedly connected to a pistol drill (1), a sleeve (4) being provided on the outer side of the special milling cutter (2), the special milling cutter (2) being rotatably arranged in the sleeve (4), an air pipe port (9) being provided in the sleeve (4) and facing the special milling cutter (2), and the special milling cutter (2) extending into the inner side of the air pipe port (9).

2. The dedicated punching device for the end of a slender aluminum alloy warping tube according to claim 1, characterized in that: A first bearing (5) and a second bearing (7) are fixedly mounted in the sleeve (4), a spacer sleeve (6) is disposed between the first bearing (5) and the second bearing (7), and the special milling cutter (2) is inserted into the first bearing (5), the second bearing (7) and the spacer sleeve (6).

3. The special punching device for the end of a slender aluminum alloy warping tube according to claim 2, characterized in that: A retaining spring (3) is provided on one side of the sleeve (4) close to the first bearing (5), and the first bearing (5) is fixed in position by the retaining spring (3). A boss (8) is provided on one side of the sleeve (4) close to the second bearing (7), and the second bearing (7) and the air pipe port (9) are both arranged close to the boss (8).

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