Magnesium alloy profile bending device

Abstract

The utility model provides a magnesium alloy profile bending device which comprises a bottom support, a workbench is arranged on the upper end face of the bottom support and comprises a conveying part used for moving magnesium alloy profiles and a bending part hinged to the bottom support, and a bending female die is detachably installed on the bending part. The workbench is further provided with a gantry support, a flame spray gun facing the magnesium alloy profile is fixed to the gantry support, meanwhile, the gantry support is further movably provided with a movable block, and a bending male die is detachably arranged on the movable block. A pointer is further fixed to the side edge of the bending part, an angle measuring plate is fixed to the side face of the workbench, and the pointer and the angle measuring plate are matched to display the included angle between the bending part and the conveying part. By means of hot bending, the plastic deformation capacity of the magnesium-aluminum alloy can be improved, cooling transfer of the bending male die to the magnesium-aluminum alloy plate can be obviously improved by heating the bending male die, and therefore the bending forming rate of the magnesium-aluminum alloy section is increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of profile bending, in particular to a magnesium alloy profile bending device. BACKGROUND

[0002] After hot extrusion, a magnesium-aluminum alloy can only form a relatively straight profile, and in the application of parts of daily necessities and industrial products, such as seat pipes and electronic box shells, the profile is often in a bent structure, so the magnesium-aluminum alloy pipes and plates generated after extrusion need to be bent to manufacture a shape and size meeting the requirements. The bending device of an aluminum alloy and steel is usually composed of a base, a feeding platform, upper and lower molds and the like.

[0003] Patent CN220112029U discloses a magnesium alloy profile bending device, which is provided with a bending plate and a workbench, and the bending plate is internally provided with an electric heating wire, which provides heating for bending during work. In addition, a water pump is arranged, and the magnesium alloy is cooled through cooperation of a water pipe and a spray head. The above-mentioned device can avoid the problems of cracking and springback of the magnesium alloy during bending. However, the above-mentioned patent has some defects, the device structure is complex, and the device is suitable for bending magnesium alloy plates, but the rotating angle cannot be accurately controlled. In addition, for magnesium alloy pipes and other profile materials, the bending is easy to cause cracking of the magnesium alloy profile or flattening of the bending part, so that the qualified rate of the magnesium alloy bending is low. Therefore, a simple magnesium-aluminum alloy profile bending device is provided to solve the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that the rotating angle cannot be accurately controlled in the magnesium alloy profile bending process in the prior art, the application provides a magnesium alloy profile bending device.

[0005] The magnesium alloy profile bending device provided by the application adopts the following technical scheme:

[0006] A magnesium alloy profile bending device, comprising a bottom support, the upper end surface of the bottom support is provided with a workbench, the workbench comprises a conveying part for moving a magnesium alloy profile and a bending part hinged to the bottom support, and a bending concave die is detachably mounted on the bending part;

[0007] The workbench is further provided with a gantry support, the gantry support is fixed with a flame spray gun facing the magnesium alloy profile, and a movable block is movably arranged on the gantry support, and a bending convex die is detachably arranged on the movable block;

[0008] The side edge of the bending part is further fixed with a pointer, the side surface of the workbench is fixed with an angle measuring plate, and the pointer and the angle measuring plate cooperate to display the included angle between the bending part and the conveying part.

[0009] Preferably, the movable block is rotatably provided with a bolt, the bolt being threadedly connected to the gantry bracket, and a rotating handle is provided at the end of the bolt away from the movable block. The gantry bracket is also provided with a track, which cooperates with the movable block to restrict the rotation of the movable block.

[0010] Preferably, a heat-resistant handle is fixed to the bent portion.

[0011] Preferably, the conveying unit includes a plurality of rotating bearings disposed on both sides of the worktable, and a conveying roller is disposed between two opposite rotating bearings.

[0012] Preferably, the outer surface of the conveyor roller is covered with cushioning rubber.

[0013] By adopting the above technical solution, this utility model is equipped with a flame torch, which can not only locally heat the magnesium-aluminum alloy profile, but also heat the surfaces of the bending die and the bending punch. Hot bending can improve the plastic deformation capacity of magnesium-aluminum alloy, and the heating of the bending punch can significantly improve the cooling transfer of the bending punch to the magnesium-aluminum alloy sheet, thereby increasing the bending forming rate of the magnesium-aluminum alloy profile.

[0014] Secondly, the angle measuring plate set on the side of the workbench in this utility model can measure the bending angle of the magnesium-aluminum alloy during the bending process through the cooperation of the bending plate, the magnesium-aluminum alloy profile and the angle measuring plate. The magnesium-aluminum alloy has springback after bending, which can be controlled by the bending plate to accurately control the bending angle.

[0015] Thirdly, both the bending die and the bending punch of this invention are detachable, making them adaptable to bending processes of magnesium-aluminum alloy plates and tubes of different shapes. In particular, during the bending process of magnesium-aluminum alloy round tubes, due to the constraint of the bending die, the round tubes exhibit minimal deformation and good fullness after hot bending. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application where the bending die is a round tube die and the bending punch is a round tube punch.

[0017] Figure 2 This is a three-dimensional structural diagram of a bending die using a square tube die and a bending punch using a square tube punch in one embodiment of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Bottom support; 2. Workbench; 21. Conveying section; 211. Rotating bearing; 212. Conveying roller; 22. Bending section; 221. Bending die; 222. Pointer; 223. Anti-scalding handle; 23. Angle measuring plate; 3. Gantry support; 31. Flame gun; 32. Movable block; 321. Bending punch; 322. Bolt; 323. Rotating handle; 33. Track. DETAILED DESCRIPTION

[0019] The application will be further described below in conjunction with the accompanying drawings. Figure 1 The application will be further described below in conjunction with the accompanying drawings.

[0020] A magnesium alloy profile bending device, comprising a bottom support 1, the upper end surface of the bottom support 1 is provided with a workbench 2, the workbench 2 comprises a conveying part 21 for moving the magnesium alloy profile and a bending part 22 hinged with the bottom support 1, and a bending female die 221 is detachably installed on the bending part 22. The bending female die 221 comprises a round pipe female die and a square pipe female die.

[0021] The workbench 2 is further provided with a gantry support 3, the gantry support 3 is fixed with a flame spraying gun 31 facing the magnesium alloy profile, and a movable block 32 is movably arranged, and a bending male die 321 is detachably arranged on the movable block 32. The bending male die 321 comprises a round pipe male die and a square pipe male die.

[0022] The side edge of the bending part 22 is further fixed with a pointer 222, and the side surface of the workbench 2 is fixed with an angle measuring plate 23, the pointer 222 and the angle measuring plate 23 cooperate to display the included angle between the bending part 22 and the conveying part 21.

[0023] The flame spraying gun 31 is fixed on the gantry support 3, and can synchronously heat the magnesium alloy profile, the bending female die 221 and the bending male die 321. The flame spraying gun 31 is an oxyacetylene flame heating device, which is communicated with an oxyacetylene gas cylinder through a hose. The oxyacetylene flame heating technology is a prior art, which will not be described here. Before bending, the magnesium alloy profile, the bending female die 221 and the bending male die 221 are heated by the oxyacetylene flame. The temperature of the bending die and the profile is controlled at 200-350℃.

[0024] In some embodiments, the movable block 32 is rotatably provided with a bolt 322, the bolt 322 is threadedly connected with the gantry support 3, the end of the bolt 322 away from the movable block 32 is provided with a rotating handle 323, and the gantry support 3 is further provided with a rail 33, the rail 33 cooperates with the movable block 32 to limit the rotation of the movable block 32. The user can move the movable block 32 upward or downward along the vertical direction by rotating the rotating handle 323, and when the bending operation is performed, the movable block 32 is moved so that the lower end of the movable block 32 abuts against the upper end surface of the magnesium alloy profile, and then precise bending is performed.

[0025] In some embodiments, the bending part 22 is fixed with an anti-scald handle 223. The anti-scald handle 223 can provide a safe and reliable holding position for the user during bending, avoiding being scalded by the preheated bending female die 221.

[0026] In some embodiments, the conveying part 21 comprises a plurality of rotating bearings 211 arranged on both sides of the workbench 2, and a conveying roller 212 is arranged between the two opposite rotating bearings 211. The conveying roller 212 can efficiently convey the magnesium alloy profile to the corresponding bending position, avoiding repeated manual handling.

[0027] In some embodiments, the outer part of the conveying roller 212 is covered with buffer rubber. By arranging the buffer rubber, slipping between the conveying roller 212 and the magnesium alloy profile can be avoided, and damage to the conveying roller 212 by heavy magnesium alloy profiles can also be avoided.

[0028] The working principle of the utility model is as follows: first, fix the corresponding bending punch 321 and bending die 221 on the movable block and the bending part 22, then move the magnesium alloy profile into the bending range of the bending part 22 through the conveying part 21, ignite the flame spray gun 31 to preheat the magnesium alloy profile, the bending punch 321 and the bending die 221, and then turn off the flame spray gun 31. Then, lift the bending part 22 and the bending die 221 on it by manpower, so that the magnesium alloy profile is hot-bent and formed under the constraint. During the hot bending, the required angle can be accurately bent with the help of the angle plate 23, and the bending angle of the magnesium alloy profile is corrected through springback.

[0029] The device can improve the small bending angle and small bending radius required during the normal temperature bending process of the magnesium alloy profile, and the cracking phenomenon of the profile and pipe caused by the small bending radius. At the same time, with the help of angle measurement, small batches of magnesium alloy products can be bent more accurately, or bending experiment research can be carried out on the magnesium alloy profile.

[0030] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A magnesium alloy profile bending device, characterized in that, The bottom support is provided with a workbench at the upper end surface, the workbench comprises a conveying part for moving magnesium alloy profiles and a bending part hinged with the bottom support, and a bending female die is detachably mounted on the bending part; The workbench is further provided with a portal support, a flame spraying gun is fixed on the portal support towards the magnesium alloy profiles, and a movable block is movably arranged, and a bending male die is detachably arranged on the movable block; A pointer is further fixed on the side of the bending part, an angle plate is fixed on the side of the workbench, and the pointer cooperates with the angle plate to display the included angle between the bending part and the conveying part.

2. The magnesium alloy profile bending apparatus according to claim 1, wherein The movable block is rotatably provided with a bolt, the bolt is threadedly connected with the portal support, a rotating handle is arranged at the end of the bolt away from the movable block, and the portal support is further provided with a track, which cooperates with the movable block to limit the rotation of the movable block.

3. The magnesium alloy profile bending apparatus according to claim 1, wherein A scald-preventing handle is fixed on the bending part.

4. The magnesium alloy profile bending apparatus according to claim 1, wherein The conveying part comprises a plurality of rotating bearings arranged on both sides of the workbench, and conveying rollers are arranged between the opposite rotating bearings.

5. A magnesium alloy profile bending apparatus according to claim 4, wherein The conveying rollers are externally covered with buffer rubbers.

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