Aluminum pipe profile straightening equipment

Abstract

The utility model relates to aluminum tube profile straightening equipment which comprises a workbench, a straightening machine box is arranged on the workbench, a conveying assembly and a straightening assembly are arranged on the workbench, and the straightening assembly is located in the straightening machine box. The conveying assembly comprises a fixing device and a driving device, the fixing device stably clamps an aluminum pipe to be straightened, the driving device drives the aluminum pipe to be straightened to do translational motion, and in the translational process, the straightening assembly conducts straightening operation on the aluminum pipe to be straightened; the fixing device comprises an inner supporting device and an outer clamping device, the inner supporting device is located in the to-be-straightened aluminum pipe, the outer clamping device is located outside the to-be-straightened aluminum pipe, and the inner supporting device and the outer clamping device tightly clamp the pipe wall of the to-be-straightened aluminum pipe at the same time; the aluminum pipe straightening device has the advantages that the aluminum pipe to be straightened can be tightly clamped, deformation of the aluminum pipe is avoided, and the straightening precision of the aluminum pipe straightening device is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum profile processing, in particular to aluminum tube profile straightening equipment. Background Art

[0002] When the aluminum tube profile is not straight due to insufficient manufacturing precision during the manufacturing process or due to external force during transportation, the aluminum tube profile is bent, which will affect the assembly and practical application of the aluminum tube profile. Therefore, when the aluminum tube profile is not straight as mentioned above, it is necessary to re-align the aluminum tube profile for subsequent use.

[0003] In the prior art, an aluminum tube straightening device has been disclosed, with document number CN216989284U. The device comprises a mounting platform, a straightening machine, an adjustment assembly, and a limit assembly. The straightening machine, guide wheels, and a bottom plate are mounted on the top of the mounting platform. Mounting plates are provided on both sides of the guide wheels and mounted on the surface of the mounting platform. The aluminum tube to be straightened is placed on the guide wheels, and a servo motor drives a screw to rotate, thereby moving the movable plate, adjusting the position of the pressure wheel, and clamping the aluminum tube according to its diameter to ensure stability during straightening.

[0004] However, in the above scheme, if the clamping force between the guide wheel and the pinch wheel is too small, the aluminum tube may be unstable during the straightening process, and if the clamping force between the guide wheel and the pinch wheel is too large, the aluminum tube may be deformed. Utility Model Content

[0005] In order to solve the above problems, the utility model provides an aluminum tube profile straightening device which can stably clamp the aluminum tube to be straightened and prevent the aluminum tube from being deformed.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: an aluminum tube profile straightening device, comprising a workbench, a straightening chassis and a conveying assembly are arranged on the workbench, an aluminum tube inlet and an aluminum tube outlet are arranged on the straightening chassis, and a straightening assembly is arranged in the straightening chassis;

[0007] The conveying assembly includes a fixing device and a driving device. The fixing device stably clamps the aluminum tube to be straightened, and the driving device drives the aluminum tube to be straightened to perform translational movement. During the translation process, the straightening assembly performs a straightening operation on the aluminum tube to be straightened.

[0008] The fixing device includes an inner supporting device and an outer clamping device. The inner supporting device is located inside the aluminum tube to be straightened, and the outer clamping device is located outside the aluminum tube to be straightened. The inner supporting device and the outer clamping device simultaneously form a tight clamping on the tube wall of the aluminum tube to be straightened.

[0009] Furthermore, the internal support device includes a liner ring, which is provided with a plurality of threaded through holes, into which bolts can be screwed, and the ends of the bolts are connected to inner heads, which are located between the wall of the aluminum tube to be straightened and the liner ring.

[0010] Furthermore, a side baffle is connected to the end surface of the liner ring, and a fan-shaped notch is opened on the side baffle.

[0011] Furthermore, a transverse pulling arm is connected to the side baffle, and a plurality of connecting rods are provided on the transverse pulling arm, and the connecting rods are connected to the outer clamping device.

[0012] Furthermore, the external clamping device includes a sleeve mounted on the connecting rod, the sleeve can slide along the length direction of the connecting rod, and a clamping plate is connected to the sleeve, and the position of the clamping plate corresponds to the position of the above-mentioned inner head.

[0013] Furthermore, a threaded section is provided at the end of the connecting rod, and a nut can be screwed onto the threaded section, and the splint is positioned by tightening the nut.

[0014] Furthermore, the straightening assembly includes two sets of positioning assemblies, and the aluminum tube can pass between the two sets of positioning devices. Each set of positioning devices includes several guide shafts, and each guide shaft is provided with a guide sleeve.

[0015] Furthermore, the driving device includes a horizontally arranged electric push rod, and the free end of the electric push rod is connected to the connecting rod.

[0016] Furthermore, a limiting device is provided at the inlet of the aluminum tube, which includes a limiting plate, a groove with a convex cross-section, a threaded through-hole provided on the straightening chassis, a threaded rod passing through the threaded through-hole, and the lower end of the threaded rod is located in the groove.

[0017] Furthermore, a tension reset spring is sleeved on the threaded rod, and two ends of the tension reset spring are respectively connected to the limit plate and the top surface of the aluminum tube inlet.

[0018] Compared with the prior art, the beneficial effect of the present invention is that the internal support device and the external clamping device of the device can simultaneously achieve tight clamping of the aluminum tube wall to be straightened, that is, tight clamping of the aluminum tube is achieved, which avoids the problem of the aluminum tube being unable to be stably clamped due to the clamping force being too small, and also avoids the problem of the aluminum tube being deformed due to the clamping force being too large, so that the straightening accuracy of the aluminum tube by the device is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the straightening machine chassis of the utility model when viewed from above;

[0021] Figure 3This is a schematic diagram of the top view of the connection between the fixing device and the aluminum tube of the utility model;

[0022] Figure 4 This is a side view structural diagram of the connection between the internal support device and the aluminum tube of the utility model;

[0023] Figure 5 This is a right-side structural diagram of the connection between the outer clamping device and the aluminum tube of the utility model;

[0024] In the figure, 1-support leg, 2-lateral fixing rod, 3-workbench, 4-straightening chassis, 5-aluminum tube inlet, 6-aluminum tube outlet, 7-support, 8-lining ring, 9-bolt, 10-inner head, 11-side baffle, 12-fan-shaped notch, 13-transverse pulling arm, 14-connecting rod, 15-sleeve, 16-clamping plate, 17-nut, 18-vertical plate, 19-electric push rod, 23-guide shaft, 24-guide sleeve, 25-limiting plate, 26-threaded rod, 27-tension return spring, 28-oblique pulling arm, 29-aluminum tube to be straightened. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents selected embodiments of the present application.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "back," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections; electrical connections; hydraulic connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0028] See Figure 1 As shown, an aluminum tube profile straightening device includes a support leg 1, and a horizontal fixing rod 2 and a longitudinal fixing rod are fixedly installed between the two support legs. The horizontal fixing rod 2 and the longitudinal fixing rod jointly fix the support legs, ensuring that the support legs will not be deformed due to the device being too heavy, so that the service life of the device is greatly extended; a workbench 3 is connected to the support leg 1, and a straightening machine box 4 and a conveying assembly are provided on the workbench 3. An aluminum tube inlet 5 and an aluminum tube outlet 6 are respectively opened on two opposite sides of the straightening machine box 4. At the same time, a straightening assembly is also provided in the straightening machine box 4. The aluminum tube 29 to be straightened enters the straightening machine box 4 from the aluminum tube inlet 5 and is then conveyed out from the aluminum tube outlet 6. The aluminum tube 29 is straightened by the straightening assembly during this movement. A support platform 7 is docked at the aluminum tube inlet 5, and the aluminum tube 29 to be straightened can be placed on the support platform 7. In addition, a hazard sign is fixedly pasted on the outer surface of the straightening machine, and the hazard sign can remind staff to pay attention to safety.

[0029] When the above-mentioned aluminum tube passes through the straightening chassis 4, the conveying assembly applies traction to the aluminum tube. The conveying assembly includes a fixing device and a driving device. The end of the aluminum tube 29 to be straightened can be stably clamped by the fixing device. The fixing device and the driving device are connected. The driving device can control the fixing device to move back and forth in a straight line. When the fixing device moves, it can drive the aluminum tube 29 to be straightened to move. The aluminum tube 29 to be straightened is straightened by the straightening assembly during the movement. It should be noted that when the aluminum tube is docked with the fixing device, one end of the aluminum tube extends from the aluminum tube outlet 6. At this time, the bent part of the aluminum tube has not yet entered the straightening chassis. When the driving device provides pulling force to the fixing device, the aluminum tube will pass through the straightening chassis.

[0030] The above-mentioned fixing device includes an inner supporting device and an outer clamping device. The inner supporting device is located inside the aluminum tube 29 to be straightened, and the outer clamping device is located outside the aluminum tube 29 to be straightened. The inner supporting device and the outer clamping device simultaneously form a tight clamping on the tube wall of the aluminum tube 29 to be straightened.

[0031] See Figure 1 and Figure 4As shown, the internal support device includes a liner ring 8, which is provided with a threaded through-hole. In this scheme, preferably, there are four threaded through-holes, which are distributed in a circular array around the central axis of the liner ring 8. A bolt 9 is screwed into each threaded through-hole, and the free end of the bolt 9 is connected to an inner head 10. The end face of the inner head 10 is a spherical surface, and the inner head 10 is located between the wall of the aluminum tube 29 to be straightened and the liner ring 8; a side baffle 11 is connected to the end face of the liner ring 8, and four fan-shaped notches 12 are opened on the side baffle 11. The four fan-shaped notches 12 are distributed in a circular array around the central axis of the side baffle 11. The operator can reach into the fan-shaped notch 12 to screw the bolt 9, thereby adjusting the distance between the inner head 10 and the inner wall of the aluminum tube 29 to be straightened.

[0032] See Figure 1 、 Figure 3 and Figure 5 As shown, a horizontal pulling arm 13 is connected to the center of the side baffle 11. The horizontal pulling arm 13 is located on the side of the side baffle 11 away from the inlet 5 of the aluminum tube 29 to be straightened. A connecting rod 14 is connected to the horizontal pulling arm 13. There are four connecting rods 14. The four connecting rods 14 are distributed in a circular array with the center of the horizontal pulling arm 13. The above-mentioned external clamping device includes a sleeve 15 sleeved on the connecting rod 14. The sleeve 15 and the connecting rod 14 are matched through a concave-convex structure. For example, a limiting groove extending along the length direction is provided on the connecting rod 14, and a protrusion is fixed on the inner wall of the sleeve 15. The protrusion is located in the limiting groove and can slide in the limiting groove. The sleeve 15 is connected to a splint. 16. The splint 16 is also an arc-shaped plate. The splint 16 is located on the outside of the aluminum tube. The position of the splint 16 corresponds to the position of the above-mentioned inner head 10. The sleeve 15 can slide along the length direction of the connecting rod 14 with the splint 16, but the sleeve 15 cannot rotate. In order to facilitate fixing the sleeve 15 at a certain position on the connecting rod 14, the splint 16 is fixed at a certain fixed position. A threaded section is provided at the end of the connecting rod 14, and a nut 17 can be screwed on the threaded section. The position of the splint 16 is locked by tightening the nut 17; the splint 16 and the inner head 10 tightly clamp the wall of the aluminum tube 29 to be straightened to achieve a tight connection of the aluminum tube 29 to be straightened.

[0033] A vertical plate 18 is provided on one side of the workbench 3 close to the aluminum tube outlet 6. The above-mentioned driving device includes an electric push rod 19 connected to the vertical plate 18. The electric push rod 19 is horizontally arranged. The free end of the electric push rod 19 is connected to the outer end of the transverse pull arm 13. In order to enhance the stability of the electric push rod 19, a diagonal pull arm 28 is connected to the electric push rod 19. The other end of the diagonal pull arm 28 is connected to the vertical plate 18. When the fixing device is tightly connected to the aluminum tube 29 to be straightened, the driving device can drive the aluminum tube 29 to be straightened to move horizontally. During the translation process, the straightening assembly straightens the aluminum tube 29 to be straightened.

[0034] See Figure 1 and Figure 2As shown, the straightening assembly includes two groups of positioning devices, which are symmetrically distributed around the transverse center axis of the straightening base. When the aluminum tube enters the straightening box, the aluminum tube is located between the two groups of positioning devices. Each group of positioning devices includes a number of guide shafts, which are arranged along the direction of translation of the aluminum tube. A guide sleeve 24 is sleeved on the guide shaft 23, and the guide sleeve 24 can rotate. When the electric push rod 19 drives the fixing device to translate, the aluminum tube 29 to be straightened is straightened when it passes between the two groups of positioning devices.

[0035] In addition, a limiting device is provided at the aluminum tube inlet 5, and the limiting device includes a limiting plate 25, and a groove with a "convex"-shaped cross-section is provided on the upper surface of the limiting plate 25. A threaded through-hole is provided on the straightening chassis 4, and the threaded through-hole is vertically arranged and located directly above the aluminum tube inlet 5. A threaded rod 26 passes through the threaded through-hole, and the lower end of the threaded rod is located in the groove. In addition, a tension reset spring 27 is sleeved on the threaded rod 26, and the two ends of the tension reset spring 27 are respectively connected to the limiting plate 25 and the top surface of the aluminum tube inlet 5. In the initial state, the tension reset spring 27 is in a natural state. After the aluminum tube 29 to be straightened is placed on the support 7, the height of the limiting plate 25 is adjusted by screwing the screw so that the limiting plate 25 just contacts the aluminum tube 29 to be straightened. The setting of the limiting device can prevent the aluminum tube 29 to be straightened from flipping upward during the translation process, thereby achieving a better straightening effect.

[0036] When using this device, first extend the electric push rod 19 to its maximum state, and allow the aluminum tube to be straightened to pass through the aluminum tube outlet 5 (at this time, the bent part of the aluminum tube has not yet entered the straightening machine chassis), then adjust the internal support device and the external clamping device so that the inner head 10 and the clamping plate 16 can stably clamp the end of the aluminum tube 29 to be straightened, then screw the threaded rod 26 so that the limit plate 25 is just in contact with the aluminum tube 29 to be straightened, and finally retract the electric push rod 19, and the aluminum tube 29 to be straightened performs a translational movement. During the translation process, the straightening assembly straightens the aluminum tube 29 to be straightened and finally completely outputs it from the aluminum tube outlet 6.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based primarily on the scope of protection of the claims.

Claims

1. An aluminum tube profile straightening device, comprising a workbench, a straightening chassis and a conveying assembly provided on the workbench, an aluminum tube inlet and an aluminum tube outlet provided on the straightening chassis, characterized in that: A straightening assembly is provided in the straightening chassis; The conveying assembly includes a fixing device and a driving device. The fixing device stably clamps the aluminum tube to be straightened, and the driving device drives the aluminum tube to be straightened to perform translational movement. During the translation process, the straightening assembly performs a straightening operation on the aluminum tube to be straightened. The fixing device includes an inner supporting device and an outer clamping device. The inner supporting device is located inside the aluminum tube to be straightened, and the outer clamping device is located outside the aluminum tube to be straightened. The inner supporting device and the outer clamping device simultaneously form a tight clamping on the tube wall of the aluminum tube to be straightened.

2. The aluminum tube profile straightening equipment according to claim 1, characterized in that: The inner support device includes a liner ring with several threaded through holes. Bolts can be screwed into the threaded through holes. The ends of the bolts are connected to inner heads, which are located between the wall of the aluminum tube to be straightened and the liner ring.

3. The aluminum tube profile straightening equipment according to claim 2, characterized in that: The end surface of the lining ring is connected with a side baffle, and a fan-shaped notch is opened on the side baffle.

4. The aluminum tube profile straightening equipment according to claim 3, characterized in that: The side baffle is connected with a transverse pulling arm, and a plurality of connecting rods are arranged on the transverse pulling arm, and the connecting rods are connected with the outer clamping device.

5. The aluminum tube profile straightening equipment according to claim 4, characterized in that: The outer clamping device comprises a sleeve sleeved on the connecting rod, the sleeve can slide along the length direction of the connecting rod, and a clamping plate is connected to the sleeve, and the position of the clamping plate corresponds to the position of the inner head.

6. The aluminum tube profile straightening equipment according to claim 5, characterized in that: The end of the connecting rod is provided with a threaded section, a nut can be screwed on the threaded section, and the clamping plate is positioned by tightening the nut.

7. The aluminum tube profile straightening equipment according to claim 1, characterized in that: The straightening assembly includes two sets of positioning assemblies. The aluminum tube can pass between the two sets of positioning devices. Each set of positioning devices includes several guide shafts, and each guide shaft is sleeved with a guide sleeve.

8. The aluminum tube profile straightening equipment according to claim 1, characterized in that :The driving device includes a horizontally arranged electric push rod, and the free end of the electric push rod is connected to the connecting rod.

9. The aluminum tube profile straightening equipment according to claim 1, characterized in that: A limiting device is provided at the inlet of the aluminum tube, which includes a limiting plate. A groove with a convex cross-section is provided on the limiting plate. A threaded through-hole is provided on the straightening chassis. A threaded rod passes through the threaded through-hole. The lower end of the threaded rod is located in the groove.

10. The aluminum tube profile straightening equipment according to claim 9, characterized in that: A tension reset spring is sleeved on the threaded rod, and two ends of the tension reset spring are respectively connected to the limit plate and the top surface of the aluminum tube inlet.

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