Aluminum pipe expanding device with burr removing function

Abstract

The utility model relates to an aluminum pipe expanding device with a burr removing function, which comprises a working table, a positioning component and an expanding and grinding component are arranged on the working table, the positioning component can move on the working table, and after an aluminum pipe is placed on the positioning component, the aluminum pipe can move along with the positioning component; the expansion grinding assembly comprises a sleeve, and an expansion head is arranged on the sleeve in a sleeving mode and can rotate. The expansion head comprises an inner scraping cylinder and an expansion cylinder, the diameter of the inner scraping cylinder is smaller than that of the expansion cylinder, the inner scraping cylinder and the expansion cylinder are coaxially arranged, the inner scraping cylinder and the expansion cylinder are in arc transition, and the inner scraping cylinder is located at the end close to the positioning assembly; a scraping plate is arranged on the inner scraping cylinder; the aluminum pipe burr removing device has the advantages that burr removing can be carried out on the aluminum pipe without an additional device, and efficiency is high; and the overturning plate can be matched with the clamping plate to tightly clamp the pipe wall of the aluminum pipe, so that the aluminum pipe can be prevented from being deformed by the positioning assembly, and the clamping stability of the aluminum pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminium pipe processing technical field, specifically is aluminium pipe expansion device with burr removal function. BACKGROUND

[0002] When the two aluminium pipes of the same size are butt jointed, the port of one aluminium pipe is expanded first, and then the other aluminium pipe is inserted into the port;

[0003] In practical application, burrs or attachments exist in the port of the aluminium pipe, so the burrs in the port of the aluminium pipe need to be treated before the port of the aluminium pipe is expanded, so as to prevent the burrs in the port from hindering the aluminium pipe when the two aluminium pipes are butt jointed, thereby affecting the butt joint effect. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides an aluminium pipe expansion device which can treat the burrs in the aluminium pipe during the expansion of the aluminium pipe.

[0005] To achieve the above object, the technical scheme of the utility model is as follows: an aluminium pipe expansion device with burr removal function, comprising a workbench, a positioning assembly and an expansion grinding assembly are arranged on the workbench, the positioning assembly can move on the workbench, when the aluminium pipe is connected with the positioning assembly, the aluminium pipe can move together with the positioning assembly;

[0006] The expansion grinding assembly comprises a sleeve, an expansion head is sleeved on the sleeve, and the expansion head can rotate;

[0007] The expansion head comprises an inner scraping cylinder and an expansion cylinder, the end of the aluminium pipe is inserted into the inner scraping cylinder, the diameter of the inner scraping cylinder is smaller than that of the expansion cylinder, and the two are coaxial, the inner scraping cylinder and the expansion cylinder are circularly transitioned, and the inner scraping cylinder is located at one end close to the positioning assembly;

[0008] The inner scraping cylinder is provided with a scraping plate, and the scraping plate on the inner scraping cylinder moves in a circular motion when the expansion cylinder rotates.

[0009] Further, the sleeve comprises a reference cylinder and an extension cylinder, the diameter of the extension cylinder is smaller than that of the reference cylinder, and the two are coaxial, the extension cylinder is located at one end close to the positioning assembly, and the expansion head is sleeved on the extension cylinder.

[0010] Further, the extension cylinder is provided with a locking ring, and the expansion grinding assembly is located between the locking ring and the reference cylinder.

[0011] Further, the free end of the extension cylinder is butt jointed with a limiting cylinder, the limiting cylinder can extend into the aluminium pipe, two symmetrical notches are arranged on the limiting cylinder, the notches extend along the length direction of the limiting cylinder, a turnover plate is arranged at the notches, and the turnover plate can form an inner support for the aluminium pipe.

[0012] Further, the notch is provided with a flat sleeve, the turnover plate is hinged in the flat sleeve, and the flat sleeve can drive the turnover plate to move in the notch.

[0013] Further, the limiting cylinder is provided with two first through holes extending along the length direction of the limiting cylinder, the first through holes are communicated with the corresponding notches, the sleeve is provided with two second through holes, and the second through holes are communicated with the corresponding first through holes.

[0014] Further, the second through hole is inserted with a pull rod, one end of the pull rod is connected with a moving plate, and the other end of the pull rod is inserted into the notch and connected with the flat sleeve.

[0015] Further, the moving plate is detachably connected with a pull handle, the pull handle is connected with the turnover plate through a pull rope, and when the pull handle moves towards the moving plate, the turnover plate is turned over.

[0016] Further, the inner scraping cylinder is provided with a groove, the scraping plate is adapted in the groove, and the scraping plate is connected with a compression return spring located in the groove.

[0017] Compared with the prior art, the beneficial effects of the device are that: the expansion head of the device comprises an inner scraping cylinder and an expansion cylinder, the positioning assembly can move with the aluminum pipe, the end portion of the aluminum pipe is sequentially in contact with the inner scraping cylinder and the expansion cylinder, after the burrs in the end portion of the aluminum pipe are treated by the inner scraping cylinder, the expansion cylinder performs expansion operation on the end portion of the aluminum pipe, the aluminum pipe does not need additional devices for burr removal, and the efficiency is higher.

[0018] In addition, the limiting cylinder that is butted with the extension cylinder is provided with a turnover plate, the turnover plate can be turned over by pulling the pull handle, the turnover plate can be matched with the clamping plate to tightly clamp the pipe wall of the aluminum pipe, not only the deformation of the aluminum pipe caused by the positioning assembly can be prevented, but also the stability of clamping the aluminum pipe is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front view structural schematic diagram of the utility model;

[0020] Figure 2 is a top view structural schematic diagram of the utility model;

[0021] Figure 3 is a top view sectional structural schematic diagram of the utility model;

[0022] Figure 4 is a side view structural schematic diagram of the positioning assembly of the utility model;

[0023] Figure 5 is a top view structural schematic diagram of the expansion grinding assembly of the utility model;

[0024] Figure 6Is the sleeve view cross-sectional structure schematic diagram of the utility model;

[0025] Figure 7 Is the expansion head view cross-sectional structure schematic diagram of the utility model;

[0026] Figure 8 Is the limiting cylinder view cross-sectional structure schematic diagram of the utility model;

[0027] In the drawing, 1 is workbench, 2 is bottom column, 3 is bottom plate, 4 is side guard plate, 5 is locking rod, 6 is clamping plate, 7 is stretching reset spring, 8 is threaded rod, 9 is base, 10 is sleeve, 11 is reference cylinder, 12 is extension cylinder, 13 is expansion head, 14 is locking ring, 16 is inner scraping cylinder, 17 is expansion cylinder, 18 is convex tooth, 19 is stand column, 20 is driving motor, 21 is gear plate, 22 is scraping plate, 23 is recess, 24 is compression reset spring, 25 is limiting cylinder, 26 is notch, 27 is turnover plate, 28 is first through channel, 29 is second through channel, 30 is pull rod, 31 is moving plate, 32 is flat sleeve, 33 is second sliding slot, 34 is ear plate, 35 is pull rope, 36 is buckle pull handle, 37 is vertical plate, 38 is pull hook, 39 is aluminium pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described in the embodiments of the utility model in combination with the drawings in the embodiments of the utility model, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model, and obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model. In the embodiments, the components of the embodiments of the application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be electrically connected; it can be a hydraulic oil circuit connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Referring to Figures 1 to 4 As shown, an aluminum pipe expanding device with burr removing function, comprising a workbench 1, the workbench 1 is provided with a positioning assembly and an expanding grinding assembly, the positioning assembly can move on the workbench 1, after placing the aluminum pipe 39 on the positioning assembly, the positioning assembly can stably clamp the aluminum pipe 39, the positioning assembly moves towards the direction close to the expanding grinding assembly, the aluminum pipe 39 moves accordingly, when the aluminum pipe 39 moves to contact with the expanding grinding assembly, the expanding grinding assembly first grinds the burr in the port of the aluminum pipe 39, and then expands the port of the aluminum pipe 39.

[0032] The upper surface of the workbench 1 is provided with two first sliding grooves, the two first sliding grooves are parallel to each other and extend along the length direction of the workbench 1, the positioning assembly comprises a bottom column 2 fitted in the notch 26, the upper end of the bottom column 2 is fixedly connected with a bottom plate 3, the bottom plate 3 is connected with two side guards 4, the two side guards 4 are parallel to each other and both extend along the length direction of the bottom plate 3, each side guard 4 is provided with a clamping device, after placing the aluminum pipe 39 on the bottom plate 3, the clamping device can stably clamp the aluminum pipe 39, at this time, the end of the aluminum pipe 39 which needs to be expanded and polished is not in contact with the bottom plate 3.

[0033] Each side guard plate 4 is provided with a through hole, and the clamping device includes a locking rod 5 passing through the through hole, and the free end of the locking rod 5 is connected to a splint 6, and the splint 6 is located between the two side guard plates 4. A tension reset spring 7 is sleeved on the locking rod 5, and the two ends of the tension reset spring 7 are fixedly connected to the side guard plate 4 and the splint 6 respectively. The side guard plate 4 is also provided with a threaded through hole located between the two through holes, and a threaded rod 8 passes through the threaded through hole. The inner end of the threaded rod 8 is in movable contact with the splint 6, and the distance between the two splints 6 is adjusted by rotating the threaded rod 8 to clamp aluminum tubes 39 of different sizes.

[0034] See Figure 3 、 Figure 5 and Figure 6 As shown, a base 9 is provided on the workbench 1, and an expansion grinding assembly is connected to the upper end of the base 9. The expansion grinding assembly includes a sleeve 10. The sleeve 10 is formed by integrally connecting a reference tube 11 and an extension tube 12. The outer diameter of the extension tube 12 is smaller than the outer diameter of the reference tube 11 and the two are coaxially arranged. The inner diameter of the extension tube 12 is greater than or equal to the inner diameter of the reference tube 11. The extension tube 12 is located at one end close to the positioning assembly. An expansion head 13 is sleeved on the extension tube 12. Specifically, a locking ring 14 is detachably connected to the extension tube 12. After the expansion head 13 is sleeved on the extension tube 12, the locking ring 14 is installed on the extension tube 12. At this time, the expansion head 13 is located between the reference tube 11 and the locking ring 14, and the expansion head 13 can rotate.

[0035] See Figure 7 As shown, in order to control the rotation of the expansion head 13, the expansion head 13 includes an inner scraper 16 and an expansion cylinder 17. The diameter of the inner scraper 16 is smaller than the diameter of the expansion cylinder 17. The inner scraper 16 and the expansion cylinder 17 are coaxially arranged and there is an arc transition between the two. The inner scraper 16 is located at one end close to the positioning component. The expansion cylinder 17 is provided with convex teeth 18, which are arranged along the circumferential direction of the expansion cylinder 17, and the convex teeth 18 are located at the end of the expansion cylinder 17 away from the positioning component. A drive motor 20 is connected to the operating platform through a column 19. The output shaft of the drive motor 20 is fixed with a gear plate 21, which engages with the convex teeth 18 on the expansion cylinder 17. When the drive motor 20 is working, the expansion head 13 rotates accordingly. This drive motor 20 adopts a low-speed stepping motor.

[0036] The inner scraper 16 is connected to a plurality of scraper plates 22, which are arranged in a circular array around the central axis of the inner scraper. When the aluminum tube 39 moves to contact the scraper plates 22 on the inner scraper 16, the scraper plates 22 scrape off the burrs on the ends of the aluminum tube 39. The specific connection structure between the scraper plates 22 and the inner scraper 16 is as follows:

[0037] The inner scraping cylinder 16 is provided with a groove 23, the scraping plate 22 is fitted in the groove 23, a compression return spring 24 is connected between the scraping plate 22 and the bottom surface of the groove 23, the two ends of the compression return spring 24 are fixedly connected with the bottom surface of the groove 23 and the scraping plate 22 respectively, and the free end of the scraping plate 22 is an arc surface.

[0038] Referring to Figure 5 and Figure 8 To prevent the positioning assembly from deforming the aluminum pipe 39 during clamping of the aluminum pipe 39, the free end of the extension cylinder 12 is butted against a limiting cylinder 25, the limiting cylinder 25 is provided with two symmetrically distributed notches 26 extending along the length direction of the limiting cylinder 25, the notches 26 are provided with turnover plates 27 capable of turning in the notches 26, and the specific connection structure of the turnover plates 27 and the notches 26 is as follows:

[0039] A first through hole 28 extending along the length direction of the limiting cylinder 25 is arranged at one end of the limiting cylinder 25, the first through hole 28 is communicated with the corresponding notch 26, two second through holes 29 are arranged on the sleeve 10 and communicated with the corresponding first through holes 28, a pull rod 30 is inserted into the second through holes 29, one end of the pull rod 30 is connected with a moving plate 31, the other end of the pull rod 30 is inserted into the notch 26 through the first through hole 28, and one end of the pull rod 30 located in the notch 26 is connected with a flat sleeve 32;

[0040] The second sliding grooves 33 are arranged on the opposite two sides of the above-mentioned notches 26, the flat sleeve 32 is connected with a sliding seat, the sliding seat is fitted in the second sliding grooves 33, and when the moving plate 31 is pulled, the flat sleeve 32 can slide along the length direction of the second sliding grooves 33;

[0041] The turnover plates 27 are hinged in the flat sleeve 32, the turnover plates 27 are fixedly connected with ear plates 34, the ear plates 34 are connected with pull ropes 35, the other ends of the pull ropes 35 pass through the limiting cylinder 25 and the sleeve 10 in sequence and are connected with a pull handle 36, the pull handle 36 is located between the moving plate 31 and the expanding grinding assembly, two vertical plates 37 are symmetrically connected on the pull handle 36, through holes are arranged on the two vertical plates 37 and extend along the length direction of the sleeve 10, and the pull rod 30 passes through the through holes.

[0042] Pull the buckle handle 36 in the direction away from the positioning assembly, the turnover plate 27 is turned over under the action of the pull rope 35, continue to pull the buckle handle 36 until the turnover plate 27 forms an inner support to the inner wall of the aluminum pipe 30, at this time the turnover plate 27 and the clamp plate 6 clamp the pipe wall of the aluminum pipe 39, at this time it is needed to make the aluminum pipe 39 move in the direction close to the expansion grinding assembly, that is, it is needed to make the moving plate 31 and the buckle handle 36 move together, the pull hook 38 in the horizontal state is arranged on the side of the moving plate 31 close to the buckle handle 36, when the aluminum pipe 39 is clamped by the turnover plate 27 and the clamp plate 6, the buckle handle 36 can be hung on the pull hook 38.

[0043] Referring to Figure 1 and Figure 3 As shown in the drawings, when the aluminum pipe expansion device with the burr removing function is used, first, the aluminum pipe 39 to be processed is placed on the base plate 3, the limiting cylinder 25 is inserted into the aluminum pipe 39, the threaded rod 8 is rotated until the two clamp plates 6 contact the outer wall of the aluminum pipe 39, then the buckle handle 36 is pulled until the buckle handle 36 is connected with the pull hook 38 on the moving plate 31, in this process, the turnover plate is turned over outward, under the joint action of the inner support plate and the clamp plate 6, the aluminum pipe 39 is stably clamped; then the moving plate 31 is moved in the direction away from the positioning assembly, and the driving motor 20 is started, the aluminum pipe 39 and the positioning assembly move in the direction close to the expansion grinding assembly, the expansion head 13 starts to rotate, when the aluminum pipe 39 moves to contact the scraping plate 22 on the inner scraping cylinder 16, the moving plate 31 stops moving, that is, the aluminum pipe 39 is kept in this position, the burr at the end of the aluminum pipe 39 is cleaned by the scraping plate 22, after a period of time, the burr in the end port of the aluminum pipe 39 is removed, then the aluminum pipe 39 continues to move, and the expansion cylinder 17 expands the end of the aluminum pipe 39.

[0044] In addition, in order to control the movement of the moving plate 31, a manual control mode can be used, or a side stand 37 can be connected to the end of the workbench 1 away from the positioning assembly, a horizontal electric push rod is connected to the side stand 37, and the free end of the electric push rod is connected with the moving plate 31.

[0045] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An aluminum tube expansion device with burr removal function, comprising a workbench, a positioning assembly and an expansion grinding assembly provided on the workbench, characterized in that: The positioning assembly can move on the workbench. When the aluminum tube is connected to the positioning assembly, the aluminum tube can move together with the positioning assembly. The expansion grinding assembly includes a sleeve, on which an expansion head is sleeved, and the expansion head is capable of rotating; The expansion head includes an inner scraper and an expansion cylinder. The inner scraper is inserted from the end of the aluminum tube. The diameter of the inner scraper is smaller than that of the expansion cylinder and the two are coaxially arranged. There is an arc transition between the inner scraper and the expansion cylinder. The inner scraper is located at one end close to the positioning assembly. The inner scraper cylinder is provided with a scraping plate, and when the expansion cylinder rotates, the scraping plate on the inner scraper cylinder is driven to make a circular motion.

2. The aluminum tube expansion device with burr removal function according to claim 1, characterized in that: The sleeve includes a reference tube and an extension tube. The diameter of the extension tube is smaller than that of the reference tube and the two are coaxially arranged. The extension tube is located at one end close to the positioning component, and the expansion head is sleeved on the extension tube.

3. The aluminum tube expansion device with burr removal function according to claim 2, characterized in that: The extension cylinder is provided with a locking ring, and the expansion grinding assembly is located between the locking ring and the reference cylinder.

4. The aluminum tube expansion device with burr removal function according to claim 2, characterized in that: The free end of the extension tube is docked with a limiting tube, which can extend into the aluminum tube. The limiting tube is provided with two symmetrically distributed notches, which extend along the length direction of the limiting tube. A flip plate is provided at the notch, which can form an internal support for the aluminum tube.

5. The aluminum tube expansion device with burr removal function according to claim 4, characterized in that: A flat sleeve is arranged in the notch, the turnover plate is hinged in the flat sleeve, and the flat sleeve can drive the turnover plate to move in the notch.

6. The aluminum tube expansion device with burr removal function according to claim 4, characterized in that: The limiting cylinder is provided with two first through-holes extending along its length direction, the first through-holes are communicated with the corresponding notches, and the sleeve is provided with two second through-holes, the second through-holes are communicated with the corresponding first through-holes.

7. The aluminum tube expansion device with burr removal function according to claim 6, characterized in that: A pull rod is inserted into the second through-hole, one end of the pull rod is connected to the movable plate, and the other end of the pull rod is inserted into the notch and connected to the flat sleeve.

8. The aluminum tube expansion device with burr removal function according to claim 7, characterized in that: The movable plate is detachably connected to a buckle-pull handle, which is connected to the flip plate via a pull rope. When the buckle-pull handle moves toward the movable plate, the flip plate is flipped.

9. The aluminum tube expansion device with burr removal function according to claim 1, characterized in that: The inner scraper cylinder is provided with a groove, the scraper plate is adapted in the groove, and the scraper plate is connected to a compression return spring located in the groove.

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