Expanding device for end part of aluminum alloy pipe

Abstract

The utility model provides an expansion device for the end of an aluminum alloy pipe, and belongs to the technical field of alloy pipe machining. The expansion device for the end of the aluminum alloy pipe comprises a supporting structure and an expansion structure. The supporting structure comprises a supporting seat and a supporting plate, the supporting plate is installed on the supporting seat, the expansion structure comprises a fixed rail, a servo motor and a cooling part, a three-jaw chuck and a hydraulic cylinder are installed on the fixed rail, a movable frame is slidably connected to the fixed rail, an expansion part is installed on the movable frame, and the servo motor is connected with the cooling part. The servo motor is installed on the movable frame, the servo motor is connected with the expansion piece through a transmission piece, and the cooling piece is installed on the expansion piece. According to the pipe expanding head, the pipe expanding part can be cooled in the pipe extruding and expanding process, so that the situation that the service life of the expanding head is influenced by rapid local temperature rise is relieved, and the pipe expanding process can be safer and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy tube processing, in particular to an expansion device for the end of an aluminum alloy tube. Background Art

[0002] Aluminum alloy is a general term for alloys based on aluminum. The main alloying elements are copper, silicon, magnesium, zinc, and manganese, and the secondary alloying elements are nickel, iron, titanium, chromium, lithium, etc. Aluminum alloy is the most widely used type of non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries.

[0003] At present, in the process of end expansion processing of aluminum alloy tubes, an expansion device is an indispensable tool. Usually, expansion is carried out through an expansion head. During the expansion process, the expansion head will cause the local temperature to rise rapidly due to extrusion, which will easily accelerate the wear of the expansion head during long-term use and shorten the service life of the expansion head. Therefore, it is necessary to propose an expansion device for the end of an aluminum alloy tube to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an expansion device for the end of an aluminum alloy tube, aiming to improve the expansion device for the end of an aluminum alloy tube. The expansion head will cause the local temperature to rise rapidly due to extrusion, which will easily accelerate the wear of the expansion head during long-term use and shorten the service life of the expansion head.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an expansion device for the end of an aluminum alloy pipe, comprising a supporting structure and an expansion structure.

[0007] The support structure includes a support seat and a support plate, the support plate is installed on the support seat, a through hole is opened inside the support plate, the extension structure includes a fixed track, a servo motor and a cooling component, the fixed track is fixed to the top surface of the support plate, a three-jaw chuck and a hydraulic cylinder are installed on the fixed track, a movable frame is slidably connected to the fixed track, the output end of the hydraulic cylinder is fixed to one side of the movable frame, an extension component is installed on the movable frame, the servo motor is installed on the movable frame, the servo motor and the extension component are connected through a transmission component, and the cooling component is installed on the extension component.

[0008] In an embodiment of the present invention, support columns are symmetrically fixed to the bottom of the support seat, and a pad is fixed to the bottom of the support column.

[0009] In an embodiment of the present utility model, the fixed rail includes a first fixed plate and a second fixed plate, the first fixed plate and the second fixed plate are fixed to the top surface of the support plate, and two limiting rods are fixed between the first fixed plate and the second fixed plate.

[0010] In one embodiment of the utility model, the movable frame slides through the limit rod, the hydraulic cylinder is installed on both sides of the second fixed plate, the output end of the hydraulic cylinder is fixed to one side of the movable frame, and the three-jaw chuck is installed on the first fixed plate.

[0011] In one embodiment of the utility model, the extension member includes a hollow tube and an extension head. The hollow tube rotates and penetrates the interior of the movable frame. One end of the hollow tube is circumferentially provided with a water outlet hole, and the extension head is fixed on the surface of one end of the hollow tube.

[0012] In one embodiment of the utility model, the transmission member includes a rotating rod and a second transmission wheel, the rotating rod is rotatably connected to the movable frame, the servo motor is connected to one end of the rotating rod, the surface key of the rotating rod is connected to the first transmission wheel, the second transmission wheel key is connected to the hollow tube, and the first transmission wheel is meshed with the second transmission wheel.

[0013] In one embodiment of the utility model, the cooling component includes a water pump and a connecting part, the water pump is installed on the support seat, the water inlet end of the water pump is connected to a liquid inlet hose, the liquid outlet end of the water pump is connected to a liquid outlet hose, the connecting part is installed at the other end of the hollow tube, and the liquid outlet hose is connected to the connecting part.

[0014] In one embodiment of the utility model, the connecting part includes a fixed frame and a connecting pipe, the fixed frame is fixed on one side of the movable frame, the connecting pipe passes through and is fixed inside the fixed frame, one end of the connecting pipe is connected to the hollow tube through a rotating joint, and the other end of the connecting pipe is connected to the liquid outlet hose.

[0015] The beneficial effect of the utility model is that the utility model is an expansion device for the end of an aluminum alloy tube obtained by the above design. When in use, a three-jaw chuck is used to clamp and fix one end of the aluminum alloy tube, and then the movable frame is driven to move to one side of the three-jaw chuck by the hydraulic cylinder. At the same time, the servo motor drives the hollow tube to rotate under the action of the transmission member. When the ends of the hollow tube and the expansion head extend into the end of the aluminum alloy tube, the end of the aluminum alloy tube can be expanded by the expansion head. During the expansion process, water is injected into the interior of the hollow tube through the cooling member, and then flows out through the water outlet. In this way, the expanded part can be cooled during the process of extrusion and expansion, which is conducive to alleviating the rapid increase of local temperature affecting the service life of the expansion head, so that the expansion process can be safer and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of a first-viewing angle of an expansion device for an aluminum alloy tube end provided by an embodiment of the utility model;

[0018] Figure 2 A schematic structural diagram of a second viewing angle of an expansion device for an aluminum alloy tube end provided by an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the three-jaw chuck structure of an expansion device for an aluminum alloy tube end provided in an embodiment of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 For this utility model Figure 3 Enlarged view of point B in the middle.

[0022] In the figure: 100-support structure; 110-support seat; 120-support plate; 121-through hole; 130-support column; 131-pad; 200-expansion structure; 210-fixed track; 211-first fixed plate; 212-second fixed plate; 213-limiting rod; 220-three-jaw chuck; 230-movable frame; 240-hydraulic cylinder; 250-extension member; 251-hollow pipe; 252-extension head; 253-water outlet; 260-servo motor; 261-transmission member; 2611-rotating rod; 2612-first transmission wheel; 2613-second transmission wheel; 270-cooling member; 271-water pump; 272-liquid outlet hose; 273-liquid inlet hose; 274-connecting part; 2741-fixed frame; 2742-connecting pipe; 2743-swivel joint. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-Figure 5 The utility model provides a technical solution: an expansion device for the end of an aluminum alloy tube, comprising a support structure 100 and an expansion structure 200.

[0026] See also Figure 1 and Figure 2 The support structure 100 includes a support base 110 and a support plate 120. The support plate 120 is installed on the support base 110, and a through hole 121 is opened inside the support plate 120; support columns 130 are symmetrically fixed to the bottom of the support base 110, and a pad 131 is fixed to the bottom of the support column 130. Here, the arrangement of the support column 130 and the pad 131 can facilitate the support of the expansion device, and the through hole 121 is used for the liquid outlet hose 272 to pass through, and to facilitate the movement of the liquid outlet hose 272.

[0027] See also Figure 1-Figure 5The extension structure 200 includes a fixed rail 210, a servo motor 260 and a cooling component 270. The fixed rail 210 is fixed to the top surface of the support plate 120. A three-jaw chuck 220 and a hydraulic cylinder 240 are installed on the fixed rail 210. A movable frame 230 is slidably connected to the fixed rail 210. The output end of the hydraulic cylinder 240 is fixed to one side of the movable frame 230. An extension component 250 is installed on the movable frame 230. The servo motor 260 is installed on the movable frame 230. The servo motor 260 is connected to the extension component 250 through a transmission component 261. The cooling component 270 is installed on the extension component 250.

[0028] The fixed track 210 includes a first fixed plate 211 and a second fixed plate 212, and the first fixed plate 211 and the second fixed plate 212 are fixed on the top surface of the support plate 120, and two limit rods 213 are fixed between the first fixed plate 211 and the second fixed plate 212; the movable frame 230 slides through the limit rods 213, and the hydraulic cylinder 240 is installed on both sides of the second fixed plate 212. The output end of the hydraulic cylinder 240 is fixed to one side of the movable frame 230, and the three-jaw chuck 220 is installed on the first fixed plate 211. Here, the fixed track 210 is used for the movable frame 230 to slide back and forth and improve the sliding stability.

[0029] The extension member 250 includes a hollow tube 251 and an extension head 252. The hollow tube 251 rotates and penetrates the interior of the movable frame 230. One end of the hollow tube 251 is circumferentially provided with a water outlet 253. The extension head 252 is fixed to the surface of one end of the hollow tube 251. Here, the outer part of the hollow tube 251 is interference-connected with a bearing. The bearing is embedded in the interior of the movable frame 230 to facilitate the rotation of the hollow tube 251. One end of the hollow tube 251 is conical and the extension head 252 is inclined, so that it can be inserted easily. The transmission member 261 includes a rotating rod 2 611 and the second transmission wheel 2613, the rotating rod 2611 is rotatably connected to the movable frame 230, the servo motor 260 is connected to one end of the rotating rod 2611, the surface key of the rotating rod 2611 is connected with the first transmission wheel 2612, the second transmission wheel 2613 is keyed to the hollow tube 251, the first transmission wheel 2612 is meshed with the second transmission wheel 2613, here the first transmission wheel 2612 and the second transmission wheel 2613 are gears, through the setting of the transmission member 261, the servo motor 260 can be conveniently used to drive the hollow tube 251 to rotate.

[0030] The cooling member 270 includes a water pump 271 and a connecting portion 274. The water pump 271 is installed on the support seat 110. The water inlet end of the water pump 271 is connected to a liquid inlet hose 273. The liquid outlet end of the water pump 271 is connected to a liquid outlet hose 272. The connecting portion 274 is installed at the other end of the hollow tube 251. The liquid outlet hose 272 is connected to the connecting portion 274. The connecting portion 274 includes a fixing frame 2741 and a connecting pipe 2742. The fixing frame 2741 is fixed to one side of the movable frame 230. The connecting pipe 2742 penetrates and is fixed to the inside of the fixing frame 2741. One end of the connecting pipe 2742 is connected by a screw. The adapter 2743 is connected to the hollow tube 251, and the other end of the connecting tube 2742 is connected to the liquid outlet hose 272. Here, the liquid inlet hose 273 is connected to an external water source. One end of the hollow tube 251 is sealed and the other end is open. One end of the connecting tube 2742 is open and the other end is sealed. In this way, the hollow tube 251 and the connecting tube 2742 can be conveniently connected through the rotating joint 2743, which is conducive to injecting water into the interior of the hollow tube 251, and then using the water outlet hole 253 to flow out and cool the expansion head 252 at the end of the hollow tube 251.

[0031] Specifically, the working principle of the expansion device for the end of the aluminum alloy tube is as follows: when in use, the three-jaw chuck 220 is used to clamp and fix one end of the aluminum alloy tube, and then the movable frame 230 is driven to move to one side of the three-jaw chuck 220 by the hydraulic cylinder 240, and the servo motor 260 is used to drive the rotating rod 2611 to rotate, so that the hollow tube 251 can be driven to rotate under the action of the first transmission wheel 2612 and the second transmission wheel 2613. When the ends of the hollow tube 251 and the expansion head 252 extend into the end of the aluminum alloy tube, the expansion head 252 can be used to expand the end of the aluminum alloy tube. During the expansion process, the liquid inlet hose 273 is connected to the external water source, and water is injected into the interior of the hollow tube 251 through the connecting pipe 2742 through the water pump 271, and then flows out through the water outlet 253. In this way, the expanded part can be cooled during the extrusion expansion process, which is conducive to alleviating the rapid increase in local temperature and affecting the service life of the expansion head 252, so that the expansion process can be safer and more convenient.

[0032] It should be noted that the specific models and specifications of the hydraulic cylinder 240, the servo motor 260 and the water pump 271 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0033] The power supply and principles of the hydraulic cylinder 240, the servo motor 260 and the water pump 271 are clear to those skilled in the art and will not be described in detail herein.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An expansion device for an aluminum alloy tube end, comprising a support structure (100) and an expansion structure (200) mounted on the support structure (100), characterized in that: The support structure (100) comprises a support seat (110) and a support plate (120); the support plate (120) is mounted on the support seat (110); a through hole (121) is provided inside the support plate (120); The expansion structure (200) comprises a fixed rail (210), a servo motor (260) and a cooling component (270); the fixed rail (210) is fixed to the top surface of the support plate (120); a three-jaw chuck (220) and a hydraulic cylinder (240) are installed on the fixed rail (210); a movable frame (230) is slidably connected to the fixed rail (210); an output end of the hydraulic cylinder (240) is fixed to one side of the movable frame (230); an expansion component (250) is installed on the movable frame (230); the servo motor (260) is installed on the movable frame (230); the servo motor (260) and the expansion component (250) are connected via a transmission component (261); and the cooling component (270) is installed on the expansion component (250).

2. The expansion device for the end of an aluminum alloy tube according to claim 1, characterized in that: A support column (130) is symmetrically fixed to the bottom of the support seat (110), and a pad (131) is fixed to the bottom of the support column (130).

3. The expansion device for the end of an aluminum alloy tube according to claim 1, characterized in that: The fixed track (210) comprises a first fixed plate (211) and a second fixed plate (212); the first fixed plate (211) and the second fixed plate (212) are fixed on the top surface of the support plate (120); and two limiting rods (213) are fixed between the first fixed plate (211) and the second fixed plate (212).

4. The expansion device for the end of an aluminum alloy tube according to claim 3, characterized in that: The movable frame (230) slides through the limiting rod (213), the hydraulic cylinder (240) is installed on both sides of the second fixed plate (212), the output end of the hydraulic cylinder (240) is fixed to one side of the movable frame (230), and the three-jaw chuck (220) is installed on the first fixed plate (211).

5. The expansion device for the end of an aluminum alloy tube according to claim 1, characterized in that: The extension piece (250) comprises a hollow tube (251) and an extension head (252); the hollow tube (251) rotates and penetrates the interior of the movable frame (230); one end of the hollow tube (251) is provided with a water outlet hole (253) in a circumferential direction; and the extension head (252) is fixed to the surface of one end of the hollow tube (251).

6. The expansion device for the end of an aluminum alloy tube according to claim 5, characterized in that: The transmission member (261) comprises a rotating rod (2611) and a second transmission wheel (2613); the rotating rod (2611) is rotatably connected to the movable frame (230); the servo motor (260) is connected to one end of the rotating rod (2611); a surface of the rotating rod (2611) is key-connected to a first transmission wheel (2612); the second transmission wheel (2613) is key-connected to the hollow tube (251); and the first transmission wheel (2612) is meshed with the second transmission wheel (2613).

7. The expansion device for the end of an aluminum alloy tube according to claim 5, characterized in that: The cooling component (270) comprises a water pump (271) and a connecting portion (274); the water pump (271) is mounted on the support seat (110); the water inlet end of the water pump (271) is connected to a liquid inlet hose (273); the liquid outlet end of the water pump (271) is connected to a liquid outlet hose (272); the connecting portion (274) is mounted on the other end of the hollow tube (251); and the liquid outlet hose (272) is connected to the connecting portion (274).

8. The expansion device for the end of an aluminum alloy tube according to claim 7, characterized in that: The connecting portion (274) includes a fixing frame (2741) and a connecting pipe (2742), wherein the fixing frame (2741) is fixed to one side of the movable frame (230), and the connecting pipe (2742) passes through and is fixed to the inside of the fixing frame (2741), one end of the connecting pipe (2742) is connected to the hollow tube (251) via a rotating joint (2743), and the other end of the connecting pipe (2742) is connected to the liquid outlet hose (272).

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