Magnesium alloy profile stretching and straightening machine

Abstract

The utility model relates to magnesium alloy section bar processing technical field discloses a magnesium alloy section bar stretch straightening machine, including the workstation, the workstation surface fixedly connected with the frame, the frame one side fixedly connected with the stretch oil cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of magnesium alloy profile processing technology, and in particular to a magnesium alloy profile tension straightening machine. Background Technology

[0002] Magnesium alloys have advantages such as low density, high specific strength and specific stiffness, and good damping performance. They are widely used in aerospace, automotive, electronics and other fields with high requirements for magnesium alloy materials. However, they have high resistance to tensile deformation and poor plastic deformation ability at room temperature, and are prone to springback or even breakage during tensile straightening. Therefore, tensile straightening machines for magnesium alloy profiles are mainly used to deal with problems such as poor straightness and high residual stress values ​​in magnesium alloy bars, tubes and profiles after extrusion production. This allows magnesium alloy profiles to meet high requirements for straightness and flatness, and to meet the requirements for dimensional accuracy and surface quality of magnesium alloy products in industrial applications.

[0003] Existing straightening machines typically use tension cylinders for straightening operations. After fixing the magnesium alloy profile with a fixed frame, the tension cylinder applies force to the profile, gradually straightening it. In actual use, this type of single-cylinder tensioning may cause uneven stress on the profile, easily leading to secondary twisting or local deformation. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a magnesium alloy profile tension straightening machine, which aims to improve the problem that the existing technology is prone to causing uneven stress on the profile and affecting product quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnesium alloy profile stretching and straightening machine, comprising a worktable, a frame fixedly connected to the surface of the worktable, a stretching cylinder one fixedly connected to one side of the frame, a first straightening block fixedly connected to the output end of the stretching cylinder one, a second stretching cylinder two fixedly connected to one side of the frame, a second straightening block fixedly connected to the output end of the stretching cylinder two, a slide rail fixedly connected to the surface of the worktable, a connecting slider slidably connected to the inner wall of the slide rail, a first guide block fixedly connected to the surface of the connecting slider, and a limit mechanism provided on the surface of the worktable;

[0006] The above technical solution allows for targeted correction of profile bending by adjusting the output force of the hydraulic cylinder, reducing excessive damage to the profile during the correction process.

[0007] Preferably, the limiting mechanism includes a limiting platform, which is fixedly connected to the worktable. A first fixing block is provided on one side surface of the limiting platform, and a positioning block is attached to the other side surface of the limiting platform. A rotating screw is threadedly connected to the inner wall of the positioning block, and the first limiting block is rotatably connected to the inner side of the rotating screw.

[0008] The above technical solution allows the limiting mechanism to position the profile at its initial position before it enters the straightening area, reducing the impact of initial profile placement deviation on subsequent straightening operations.

[0009] Preferably, the limiting mechanism further includes a second limiting block and a second fixing block, the second limiting block being rotatably connected to the rotating screw, and the bottom surface of the second fixing block being in contact with the top surface of the limiting platform;

[0010] The above technical solution allows the limiting mechanism to adapt to profiles of different shapes by replacing the limiting block and the fixing block, thereby reducing the operating cost of the equipment.

[0011] Preferably, the surface of the limiting platform is provided with a groove, a movable block is fitted inside the groove, the top of the movable block is fixedly connected to the first fixed block, and the bottom surface of the positioning block is fitted with the inner wall of the groove.

[0012] Preferably, a guide rod is fixedly connected to the top of the worktable, and the connecting slider is slidably connected to the guide rod.

[0013] Preferably, a second guide block is attached to the surface of the worktable, and the surface of the second guide block is attached to the inner wall of the slide rail.

[0014] Preferably, the surface of the connecting slider is uniformly provided with positioning holes, which are used to fix the first guide block.

[0015] Preferably, a photoelectric sensor is fixedly connected to the top of the frame, and the photoelectric sensor is used to detect the position of the magnesium alloy profile in real time.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, the first straightening block and the second straightening block simultaneously apply pressure to the profile for straightening. The first guide block and the second guide block prevent the profile from shifting to the side during pressing and avoid secondary bending of the profile during stretching. The combined action of the straightening block and the guide block makes the straightening force on the magnesium alloy profile more uniform, avoids uneven force on the profile causing twisting or local deformation, and improves product quality.

[0018] 2. In this utility model, the straightening machine is provided with limiting mechanisms at both ends. The limiting mechanisms can be used to position the profile on the worktable surface, which facilitates the subsequent adjustment of the positions of the first guide block and the second guide block. By replacing the fixing blocks and limiting blocks of different shapes, the limiting mechanisms can limit profiles of different shapes. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of a magnesium alloy profile tension straightening machine proposed in this utility model;

[0020] Figure 2 This is a cross-sectional schematic diagram of a magnesium alloy profile tensile straightening machine proposed in this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a partial structural schematic diagram of a magnesium alloy profile tensile straightening machine proposed in this utility model;

[0023] Figure 5 This is an exploded view of the limiting mechanism of a magnesium alloy profile tension straightening machine proposed in this utility model.

[0024] Legend:

[0025] 1. Workbench; 2. Tensioning cylinder one; 3. Tensioning cylinder two; 4. Frame; 5. First straightening block; 6. First guide block; 7. Slide rail; 8. Connecting slider; 9. Positioning hole; 10. Guide rod; 11. Second straightening block; 12. Second guide block; 13. Limiting platform; 14. Positioning block; 15. Rotating screw; 16. First limiting block; 17. First fixing block; 18. Second limiting block; 19. Second fixing block; 20. Photoelectric sensor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1:

[0028] Reference Figures 1-2 An embodiment of this utility model provides a magnesium alloy profile stretching and straightening machine, including a worktable 1, a frame 4 fixedly connected to the surface of the worktable 1, a stretching cylinder 2 fixedly connected to one side of the frame 4, a first straightening block 5 fixedly connected to the output end of the stretching cylinder 2, a second stretching cylinder 3 fixedly connected to one side of the frame 4, a second straightening block 11 fixedly connected to the output end of the stretching cylinder 3, a slide rail 7 fixedly connected to the surface of the worktable, a connecting slider 8 slidably connected to the inner wall of the slide rail 7, a first guide block 6 fixedly connected to the surface of the connecting slider 8, and a limit mechanism provided on the surface of the worktable 1.

[0029] Specifically, the two tension cylinders drive the corresponding straightening blocks respectively, which can form symmetrical forces from both sides of the profile to specifically correct the bending parts of the profile to different degrees, reducing additional stress damage to the profile body during the straightening process.

[0030] Through the combined action of the slide rail 7, the connecting slider 8, and the guide block, when the bent part of the profile comes into contact with the guide block, the guide block can flexibly adjust its position along the slide rail 7, thus avoiding a rigid collision between the guide block and the profile that would cause secondary bending.

[0031] On the other hand, there is a small gap between the initial position of the guide block and the profile to avoid excessive friction between the guide block and the profile, which would cause damage to the profile surface. At the same time, when the profile is subjected to tensile straightening force, the guide blocks on both sides can prevent the profile from shifting.

[0032] Reference Figure 1 The limiting mechanism includes a limiting platform 13, which is fixedly connected to the worktable 1. A first fixing block 17 is provided on one side surface of the limiting platform 13, and a positioning block 14 is attached to the other side surface of the limiting platform 13. A rotating screw 15 is threadedly connected to the inner wall of the positioning block 14, and a first limiting block 16 is rotatably connected to the inner side of the rotating screw 15.

[0033] Specifically, both ends of the straightening machine are equipped with limiting mechanisms. The first fixing block 17 is attached to the surface of the profile to provide an initial position reference for the profile. The positioning block 14 is connected to the limiting table 13 through a groove. When the rotating screw 15 rotates, the first limiting block 16 can move closer to or further away from the profile along the axial direction, thereby adjusting the distance between it and the first fixing block 17. This allows the limiting mechanism to adjust the limiting range according to the size of the magnesium alloy profile, reducing the positional deviation of the profile before entering the straightening area and providing a guarantee for subsequent straightening operations.

[0034] Reference Figures 1-2 The surface of the limiting platform 13 has a groove, and a movable block is fitted inside the groove. The top of the movable block is fixedly connected to the first fixed block 17, and the bottom surface of the positioning block 14 is fitted to the inner wall of the groove.

[0035] Specifically, by setting grooves, the positions of the first fixing block 17 and the positioning block 14 on the surface of the limiting platform 13 can be flexibly adjusted according to the actual size and positioning requirements of the magnesium alloy profile to be limited.

[0036] Reference Figures 2-3 The top of the workbench 1 is fixedly connected to a guide rod 10, and the connecting slider 8 is slidably connected to the guide rod 10.

[0037] Specifically, the guide rod 10 can further support the movement of the connecting slider 8, and the cylindrical structure of the guide rod 10 can constrain the radial movement of the connecting slider 8, preventing the connecting slider 8 from shaking due to uneven force during sliding.

[0038] Reference Figure 4 The surface of the worktable 1 is fitted with a second guide block 12, and the surface of the second guide block 12 is fitted with the inner wall of the slide rail 7.

[0039] Specifically, first guide blocks 6 are provided on both the left and right sides of one end of the workbench 1, and second guide blocks 12 are provided on both the left and right sides of the other end of the workbench 1. When the magnesium alloy profile is conveyed to the surface of the workbench 1, the first guide blocks 6 at one end of the workbench 1 initially constrain the profile from both sides of the lateral direction to prevent the profile from tilting due to conveying deviation when it first enters.

[0040] As the profile moves, the second guide block 12 at the other end of the worktable 1 works together with the first guide block 6 to laterally constrain the profile, thereby reducing the positional deviation of the profile caused by the transmission distance. At the same time, the symmetrical arrangement on the left and right sides can form a balanced constraint force from both sides of the profile, preventing the profile from shifting to one side due to force on one side.

[0041] Reference Figure 3 The surface of the connecting slider 8 is evenly provided with positioning holes 9, which are used to fix the first guide block 6;

[0042] Specifically, the surface of the connecting slider 8 is evenly provided with positioning holes 9. The positioning holes 9 can provide multiple fixed positions for the first guide block 6, so that the first guide block 6 can be fixed by selecting the appropriate positioning hole 9 according to the specific specifications of the magnesium alloy profile, thereby flexibly adjusting the installation position of the first guide block 6 on the connecting slider 8.

[0043] Reference Figure 4 A photoelectric sensor 20 is fixedly connected to the top of the frame 4. The photoelectric sensor 20 is used to detect the position of the magnesium alloy profile in real time.

[0044] Specifically, the photoelectric sensor 20 can detect the surface of the worktable 1 in real time. When the photoelectric sensor 20 detects that the profile deviates from the preset path, it can quickly trigger an alarm mechanism, which facilitates correction before the profile deviation expands, reducing problems such as decreased straightening accuracy or damage to the profile surface caused by continuous deviation.

[0045] Example 2:

[0046] Reference Figure 5 The limiting mechanism also includes a second limiting block 18 and a second fixing block 19. The second limiting block 18 is rotatably connected to the rotating screw 15, and the bottom surface of the second fixing block 19 is in contact with the top surface of the limiting platform 13.

[0047] Specifically, the second limiting block 18 is attached to the side of the profile, and the top of the inner wall of the second fixing block 19 is attached to the top of the profile. By replacing the first fixing block 17 and the first limiting block 16 with the second limiting block 18 and the second fixing block 19, the limiting mechanism can limit profiles of different shapes.

[0048] Working principle: When the straightening machine is working, the magnesium alloy profile is transported to the surface of the worktable 1 by the conveyor. Two tension cylinders are symmetrically set on both sides of the worktable 1. The first straightening block 5 and the second straightening block 11 apply pressure to the profile at the same time to correct the local small-amplitude bending of the profile. At the same time, the conveyor continuously controls the profile to move towards the discharge end of the straightening machine, so that the surface of the profile is in continuous contact with the first straightening block 5 and the second straightening block 11, eliminating residual stress on the surface of the profile. The combined action of the straightening block and the guide block can prevent the profile from bending again during stretching and prevent the profile from shifting to the side during pressing. This makes the tensile force applied to the magnesium alloy profile more evenly distributed and avoids the twisting or local deformation caused by uneven force on the profile.

[0049] The surface of the connecting slider 8 is evenly provided with positioning holes 9. By connecting different positioning holes 9 with bolts, the position of the first guide block 6 and the second guide block 12 can be changed. The slide rail 7 is also fixed to the surface of the worktable 1 with bolts, so that the slide rail 7 can change its distance from the edge of the worktable 1, thereby significantly changing the position of the first guide block 6 and the second guide block 12, thus making the position of the first guide block 6 and the second guide block 12 adjustable.

[0050] In addition, the straightening machine is equipped with limit mechanisms at both ends. The limit mechanisms can be used to position the profile on the surface of the worktable 1, which facilitates the subsequent adjustment of the position of the first guide block 6 and the second guide block 12. By replacing the fixed blocks and limit blocks of different shapes, the limit mechanisms can limit profiles of different shapes.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnesium alloy profile tension straightening machine, comprising a worktable (1), characterized in that: The workbench (1) is fixedly connected to a frame (4). A tension cylinder (2) is fixedly connected to one side of the frame (4). A first straightening block (5) is fixedly connected to the output end of the tension cylinder (2). A tension cylinder (3) is fixedly connected to one side of the frame (4). A second straightening block (11) is fixedly connected to the output end of the tension cylinder (3). A slide rail (7) is fixedly connected to the surface of the workbench (1). A connecting slider (8) is slidably connected to the inner wall of the slide rail (7). A first guide block (6) is fixedly connected to the surface of the connecting slider (8). A limit mechanism is provided on the surface of the workbench (1).

2. The magnesium alloy profile tension straightening machine according to claim 1, characterized in that: The limiting mechanism includes a limiting platform (13), which is fixedly connected to the worktable (1). A first fixing block (17) is provided on one side surface of the limiting platform (13), and a positioning block (14) is attached to the other side surface of the limiting platform (13). A rotating screw (15) is threadedly connected to the inner wall of the positioning block (14), and a first limiting block (16) is rotatably connected to the inner side of the rotating screw (15).

3. The magnesium alloy profile tension straightening machine according to claim 2, characterized in that: The limiting mechanism also includes a second limiting block (18) and a second fixing block (19). The second limiting block (18) is rotatably connected to the rotating screw (15), and the bottom surface of the second fixing block (19) is in contact with the top surface of the limiting platform (13).

4. The magnesium alloy profile tension straightening machine according to claim 2, characterized in that: The limiting platform (13) has a groove on its surface, and a movable block is attached inside the groove. The top of the movable block is fixedly connected to the first fixed block (17), and the bottom surface of the positioning block (14) is attached to the inner wall of the groove.

5. The magnesium alloy profile tensile straightening machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a guide rod (10), and the connecting slider (8) is slidably connected to the guide rod (10).

6. A magnesium alloy profile tensile straightening machine according to claim 1, characterized in that: The worktable (1) has a second guide block (12) attached to its surface, and the surface of the second guide block (12) is attached to the inner wall of the slide rail (7).

7. A magnesium alloy profile tensile straightening machine according to claim 1, characterized in that: The surface of the connecting slider (8) is uniformly provided with positioning holes (9), which are used to fix the first guide block (6).

8. A magnesium alloy profile tensile straightening machine according to claim 1, characterized in that: A photoelectric sensor (20) is fixedly connected to the top of the frame (4), and the photoelectric sensor (20) is used to detect the position of the magnesium alloy profile in real time.

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