Mechanical stretching treatment equipment and method for removing residual stress of aluminum alloy plate

Abstract

The invention relates to the technical field of metal processing, in particular to mechanical stretching treatment equipment for removing residual stress of an aluminum alloy plate and a method thereof.The mechanical stretching treatment equipment comprises an assembly shell, and a bottom supporting structure movably installed on the assembly shell is arranged in the assembly shell and used for applying upward force to the bottom of the aluminum alloy plate. When the size of the aluminum alloy plate is small, adjustment of the rotatable pressing plate is selected, the aluminum alloy plate is placed between the two rectangular pressing plates and put down, the rotatable pressing plate makes contact with the upper surface of the aluminum alloy plate, the rotatable pressing plate rotates around the rectangular pressing plates, and the rectangular pressing plates and the rotatable pressing plate form a horizontal structure. The aluminum alloy plate is preliminarily fixed through the structure formed by the three parts, the additional operation of transverse pushing is not needed, the placing time can be saved, the working efficiency can be improved, in the operation process of stress removal through heating and stretching of the aluminum alloy plate, the efficiency can be improved more obviously, and the overall working process can be accelerated easily.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, and in particular to mechanical stretching processing equipment and a method for removing residual stress of an aluminum alloy plate. Background Art

[0002] Aluminum alloy plates are often treated by mechanical stretching to remove stress. Aluminum alloy has a relatively low elastic modulus and good plasticity. Mechanical stretching can make good use of its material properties. By applying appropriate stretching force, the stress inside the aluminum alloy plate can be effectively released and redistributed. It is particularly suitable for eliminating residual stress generated by aluminum alloy plates during rolling, extrusion, welding and other processing processes.

[0003] It is necessary to fix both ends and consider vertical placement and lateral movement, which involves multiple steps and actions. The operation process is relatively complicated, which increases the difficulty and workload of the operators, resulting in low overall work efficiency. In the process of batch stress removal, each aluminum alloy plate must go through these tedious operations, which will consume a lot of time on clamping and positioning. Due to the complex and time-consuming operation, the stretching equipment may be in a waiting state during the operation, resulting in a reduction in the effective working time of the equipment, a reduction in equipment utilization, and an increase in production costs. Summary of the invention

[0004] The object of the present invention is to provide a mechanical stretching treatment device and method for removing residual stress of an aluminum alloy plate, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: A mechanical stretching treatment device for removing residual stress of an aluminum alloy plate, comprising an assembly shell, wherein the assembly shell is provided with:

[0006] A bottom support structure movably mounted on the assembly housing, used to apply an upward force to the bottom of the aluminum alloy plate;

[0007] A top limiting structure movably mounted on the assembly housing is used to apply a downward force to the top of the aluminum alloy plate;

[0008] The top limiting structure comprises a sliding part, a rotating part and a fixing part;

[0009] The sliding parts are arranged symmetrically on the left and right, and the near ends of the sliding parts are each provided with a rotating part, which is folded by rotating the rotating part downward, and a gap for the aluminum alloy plate to fall is left between the sliding parts arranged symmetrically on the left and right.

[0010] Preferably, when the rotating part is in a horizontal state, the rotating part and the horizontal part of the sliding part form a pressure-applying part for the aluminum alloy plate.

[0011] Preferably, the fixing portion consists of a fixing buckle, a fixing plug plate movably inserted into the fixing buckle, and a connecting buckle for fixing the fixing plug plate.

[0012] Preferably, the sliding portion comprises a sliding assembly;

[0013] The sliding assembly is slidably connected to the assembly housing and is used for limiting the sliding of the top limiting structure;

[0014] An L-shaped plate is fixedly installed on the top of the sliding assembly, and the top of the L-shaped plate is rotatably connected to a fixed shaft, and an elastic pressing sheet is rotatably connected to the fixed shaft;

[0015] A rectangular pressing plate is movably mounted on the L-shaped plate, a movable plug-in is arranged between the L-shaped plate and the rectangular pressing plate for fixing, and the elastic pressing sheet applies pressure to the movable plug-in for fixing.

[0016] Preferably, the rotating part comprises a hinge, a rotatable pressing plate is provided at the other end of the hinge, and the rotatable pressing plate and the rectangular pressing plate are fixed by the hinge;

[0017] The rotatable pressing plate is fixed with an elastic band via a pressing block, and a protective plate is provided at the bottom of the hinge for shielding and protection.

[0018] Preferably, the bottom support structure comprises a rectangular movable plate, and the rectangular movable plate moves along the axis on the assembly housing;

[0019] The bottom support structure further comprises a first electric push rod, on the piston rod of which an auxiliary support plate for vertical up and down movement is fixedly mounted, and on the top of the auxiliary support plate a lower support plate is fixedly mounted, and the lower support plate is used to support the aluminum alloy plate to rise;

[0020] Side fixing bars are also provided on both sides of the bottom supporting structure, a second electric push rod is fixedly installed on the top of the side fixing bar, a lower supporting bar is fixedly installed on the top of the piston rod of the second electric push rod, and the lower supporting bar is used for pressurizing and fixing the aluminum alloy plate.

[0021] Preferably, the lower support plate includes a first assembly plate fixed on the auxiliary support plate, a plurality of rectangular assembly plates are arranged on the top of the first assembly plate, a plurality of protruding rods are fixedly installed on the top of the rectangular assembly plate, a spring is arranged on the outer movable sleeve of the protruding rod, and a second assembly plate is arranged on the outer movable sleeve of the protruding rod.

[0022] Preferably, the positions of the lower support plate and the rectangular pressing plate correspond to each other.

[0023] Preferably, a guide rail is provided on the top of the inner wall of the assembly shell, and a servo motor is provided at both ends of the guide rail. A screw rod is fixedly mounted on the output shaft of the servo motor, and the screw rod is threadedly connected to the rectangular movable plate.

[0024] A method for using a mechanical stretching treatment device for removing residual stress of an aluminum alloy plate comprises the following steps: S1: according to the size of the aluminum alloy plate, a servo motor drives a bottom support structure to move, the bottom support structure can support the aluminum alloy plate at a suitable position to assist in placing the aluminum alloy plate, and at the same time, a corresponding top limit structure above also moves accordingly;

[0025] S2: According to the size of the aluminum alloy plate, select the installation and placement method of the aluminum alloy plate. The rotatable pressure plate can be fixed or non-fixed;

[0026] S3: When the aluminum alloy plate is small in size, the fixed plug plate and the connecting buckle structure are disassembled, the rotatable pressing plate is vertical, the aluminum alloy plate can be put down from between the two rectangular pressing plates, and the aluminum alloy plate is placed on the lower support plate;

[0027] S4: The piston rod of the first electric push rod pushes the auxiliary support plate and the lower support plate. The rectangular pressure plate and the rotatable pressure plate form a horizontal structure. The structure composed of the three initially fixes the aluminum alloy plate. The servo motor drives the movement of the bottom support structure, and the top limit structure also moves accordingly, thereby stretching the heated aluminum alloy plate.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. When the size of the aluminum alloy plate is small, choose to adjust the rotatable pressing plate. The aluminum alloy plate is placed between two rectangular pressing plates and lowered. The rotatable pressing plate contacts the upper surface of the aluminum alloy plate and rotates around the rectangular pressing plate. The rectangular pressing plate and the rotatable pressing plate form a horizontal structure. The structure composed of the three can initially fix the aluminum alloy plate. There is no need for the additional operation of lateral pushing, which can save placement time and improve work efficiency. In the process of heating, stretching and removing stress of the aluminum alloy plate, this efficiency improvement will be more obvious, which will help speed up the overall workflow.

[0030] 2. According to the size of the aluminum alloy plate, adjust the structure on the assembly shell. The output shaft of the servo motor drives the screw to rotate, thereby driving the bottom support structure to move, ensuring that the bottom support structure can support the aluminum alloy plate in a suitable position and assist in the placement of the aluminum alloy plate. At the same time, the corresponding top limit structure above also moves, so that the fixed structure can be applied to aluminum alloy plates of various sizes, reducing the need to replace the fixed structure due to changes in the size of the aluminum alloy plate, reducing costs, and improving the use efficiency of the fixed structure. Ensure that the fixed structure and the aluminum alloy plate can cooperate closely, so that the aluminum alloy plate will not shake or shift during use due to loose fixation, thereby improving the stability and safety of the entire structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0032] Figure 2 It is a side view structural schematic diagram of the present invention.

[0033] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0034] Figure 4 It is a rear view structural schematic diagram of the present invention.

[0035] Figure 5 It is a schematic diagram of the structure at the corresponding position of the L-shaped plate of the present invention.

[0036] Figure 6 It is a structural schematic diagram of the corresponding position of the top limiting structure of the present invention.

[0037] Figure 7 It is a schematic diagram of the structure at the corresponding position of the elastic belt of the present invention.

[0038] Figure 8 It is a structural schematic diagram of the corresponding position of the servo motor of the present invention.

[0039] Fig. 9 It is a structural schematic diagram of the corresponding position of the first electric push rod of the present invention.

[0040] Fig.10 It is a structural schematic diagram of the corresponding position of the second electric push rod of the present invention.

[0041] Fig.11 It is a schematic diagram of the structure at the corresponding position of the auxiliary support plate of the present invention.

[0042] Fig.12 It is a schematic diagram of the structure at the corresponding position of the spring of the present invention.

[0043] Fig.13 It is a structural schematic diagram of the corresponding position of the convex rod of the present invention.

[0044] In the figure: 1, assembly housing; 2, bottom support structure; 21, rectangular moving plate; 22, first electric push rod; 22, first electric push rod; 23, auxiliary support plate; 24, lower support plate; 241, first assembly plate; 242, rectangular assembly plate; 243, convex rod; 244, spring; 245, second assembly plate; 25, side fixing strip; 26, second electric push rod; 27, lower support strip; 3, top limit structure; 31, sliding part ; 310, sliding assembly; 311, L-shaped plate; 312, fixed shaft; 313, elastic pressure piece; 314, movable plug-in; 315, rectangular pressure plate; 32, rotating part; 320, hinge; 321, rotatable pressure plate; 322, elastic belt; 323, pressure block; 324, protective plate; 33, fixed part; 330, fixing buckle; 331, fixed plug plate; 332, connecting buckle; 4, guide rail; 41, servo motor; 42, screw rod. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1 to 13 The present invention provides a technical solution: a mechanical stretching treatment device for removing residual stress of an aluminum alloy plate, comprising an assembly shell 1, on which a structure for sliding a bottom support structure 2 and a top limit structure 3 is provided to assist the sliding of the bottom support structure 2 and the top limit structure 3, and the assembly shell 1 is provided with:

[0047] The bottom support structure 2 movably mounted on the assembly housing 1 is used to apply an upward force to the bottom of the aluminum alloy plate. The bottom support structure 2 is provided with a structure for applying pressure to the bottom of the aluminum alloy plate to assist in fixing the bottom of the aluminum alloy plate.

[0048] The top limiting structure 3 movably mounted on the assembly housing 1 is used to apply a downward force to the top of the aluminum alloy plate. The top limiting structure 3 limits the aluminum alloy plate from above. After the aluminum alloy plate rises to a certain height, the top of the aluminum alloy plate is pressed and fixed;

[0049] The top limiting structure 3 has a sliding portion 31, a rotating portion 32 and a fixed portion 33. The sliding portion 31 slides in the assembly housing 1 to drive the corresponding structure to move, and the rotating portion 32 drives the corresponding structure to rotate, thereby assisting the corresponding structure to rotate and assisting the aluminum alloy plate to move downward from between the two rectangular pressing plates 315.

[0050] The sliding parts 31 are symmetrically arranged on the left and right, and a rotating part 32 is arranged near the end of the sliding parts 31. The rotating part 32 is rotated downward to put the rotating part 32 into a folded state. A gap is left between the sliding parts 31 that are symmetrically arranged on the left and right for the aluminum alloy plate to fall. When the rotating part 32 is rotated to the folded state, the gap between the sliding parts 31 is provided for the aluminum alloy plate to fall. When the rotating part 32 is rotated to the horizontal state, the sliding part 31 and the rotating part 32 form a horizontal limiting structure, thereby assisting in limiting and fixing the top of the aluminum alloy plate.

[0051] When the rotating part 32 is in a horizontal state, the horizontal parts of the rotating part 32 and the sliding part 31 form a pressure part for the aluminum alloy plate, and the horizontal parts of the rotating part 32 and the sliding part 31 press and fix the top of the aluminum alloy plate. When the rotating part 32 contacts the top of the aluminum alloy plate, an upward thrust is applied to the rotating part 32, thereby realizing the rotation of the rotating part 32 around the sliding part 31, and realizing that the rotating part 32 and the sliding part 31 are in a horizontal state.

[0052] The fixing part 33 is composed of a fixing buckle 330, a fixing plug plate 331 movably inserted into the fixing buckle 330, and a connecting buckle 332 for fixing the fixing plug plate 331. The fixing buckle 330 assists in the installation of the fixing plug plate 331. After the fixing plug plate 331 is installed in the fixing buckle 330, it is pressed and fixed by the connecting buckle 332.

[0053] The sliding part 31 includes a sliding assembly 310, which is composed of a driving part and a rotating part. The driving part drives the sliding assembly 310 to slide and rotate, thereby driving the sliding assembly 310 to move on the assembly housing 1;

[0054] The sliding assembly 310 is slidably connected to the assembly housing 1 and is used for sliding limiting of the top limiting structure 3;

[0055] The top of the sliding assembly 310 is fixedly mounted by an L-shaped plate 311, and the top of the L-shaped plate 311 is rotatably connected by a fixed shaft 312, and an elastic pressing piece 313 is rotatably connected to the fixed shaft 312;

[0056] The L-shaped plate 311 is provided with a rectangular pressing plate 315 movably engaged therewith, and a movable plug-in 314 is arranged between the L-shaped plate 311 and the rectangular pressing plate 315 for fixing. The elastic pressing piece 313 applies pressure to the movable plug-in 314 to fix it. The elastic pressing piece 313 can rotate around the fixed shaft 312. After the elastic pressing piece 313 rotates around the fixed shaft 312, the elastic pressing piece 313 applies pressure to the top of the movable plug-in 314 to assist in fixing the rectangular pressing plate 315 and the L-shaped plate 311 after assembly. The elastic pressing piece 313 uses the fixed shaft 312 as a rotation fulcrum. This design gives the elastic pressing piece 313 good rotation flexibility. The fixed shaft 312 is usually firmly mounted on the relevant frame or structural member to ensure a stable position during the entire operation process, and provide reliable support for the rotation of the elastic pressing piece 313. When pressure is applied to the top of the movable plug-in 314 to assist in the fixation of the rectangular pressure plate 315 and the L-shaped plate 311 after assembly, the operator manually or through a specific driving device causes the elastic pressure plate 313 to rotate around the fixed axis 312. Since the elastic pressure plate 313 itself has elastic properties, it will gradually approach the top of the movable plug-in 314 during the rotation process. When the elastic pressure plate 313 contacts the top of the movable plug-in 314, with further rotation, the elastic pressure plate 313 will undergo elastic deformation, thereby applying continuous and stable pressure to the top of the movable plug-in 314. This pressure not only effectively limits the displacement of the movable plug-in 314 in the vertical direction, but also is transmitted to the connecting portion of the rectangular pressure plate 315 and the L-shaped plate 311 through the movable plug-in 314, thereby enhancing the tightness of the connection between the two.

[0057] The rotating part 32 includes a hinge 320, and a rotatable pressing plate 321 is provided at the other end of the hinge 320. The rotatable pressing plate 321 and the rectangular pressing plate 315 are fixed by the hinge 320, and the rotatable pressing plate 321 rotates around the rectangular pressing plate 315 through the hinge 320;

[0058] The rotatable pressing plate 321 is fixedly mounted with an elastic band 322 through a pressing block 323. The elastic band 322 passes through the hinge 320 and is connected to the other leaf of the hinge 320, so as to realize the rebound of the rotatable pressing plate 321 after deformation. The elastic band 322 is cleverly arranged to pass through the two movable leaves of the hinge 320. The elastic band 322 has good flexibility and elasticity. It can not only stretch or contract accordingly with the opening and closing of the leaves when the hinge 320 rotates, but also provide a support for the activity of the hinge 320. The hinge 320 can provide a certain buffer and assistance, and when the hinge 320 is in a closed state, the two connected parts can be kept in close fit by virtue of the tension generated by its own elasticity, thereby improving the stability of the overall structure. A protective plate 324 is provided at the bottom of the hinge 320 for shielding and protection. The protective plate 324 protects the connection position between the rotatable pressure plate 321 and the rectangular pressure plate 315 to prevent damage to the hinge 320 at the connection position, and can also allow the rotatable pressure plate 321 and the rectangular pressure plate 315 to form a flatter plane.

[0059] The bottom support structure 2 includes a rectangular movable plate 21, which moves along the axis on the assembly housing 1;

[0060] The bottom support structure 2 also includes a first electric push rod 22, on the piston rod of which an auxiliary support plate 23 that moves vertically up and down is fixedly installed, and on the top of which a lower support plate 24 is fixedly installed, and the lower support plate 24 is used to support the aluminum alloy plate to rise, and the piston rod of the first electric push rod 22 pushes the auxiliary support plate 23 and the lower support plate 24 to form a structure to rise, thereby assisting the rise of the aluminum alloy plate to assist the fixation of the aluminum alloy plate. When the first electric push rod 22 receives the rising command, the piston rod begins to extend, pushing the auxiliary support plate 23 to move upward. Since the lower support plate 24 is closely connected to the auxiliary support plate 23, the lower support plate 24 will also rise synchronously. In this process, the aluminum alloy plate is placed on the second assembly plate 245, and as the lower support plate 24 rises, the aluminum alloy plate is gradually lifted up, thereby achieving the function of assisting the rise of the aluminum alloy plate;

[0061] Side fixing bars 25 are also provided on both sides of the bottom support structure 2. A second electric push rod 26 is fixedly installed on the top of the side fixing bar 25. A lower support bar 27 is fixedly installed on the top of the piston rod of the second electric push rod 26. The lower support bar 27 is used to press and fix the aluminum alloy plate. The lower support bar 27 is pushed up by the second electric push rod 26 to further fix the aluminum alloy plate and improve the fixing effect of the aluminum alloy plate. When the control system issues an instruction, the current passes through the motor inside the electric push rod, and the motor drives the screw to rotate. The screw and the nut form a spiral transmission pair. The nut moves linearly along the axial direction under the drive of the screw, and then pushes the piston rod connected to the nut to extend or retract. The control system starts the second electric push rod 26. As the push rod rises, the lower support bar 27 gradually approaches the aluminum alloy plate. When the two are in contact, the lower support bar 27 continues to apply pressure upward, so that the aluminum alloy plate and the surrounding fixed structure fit more closely.

[0062] The lower support plate 24 includes a first assembly plate 241 fixed on the auxiliary support plate 23, a plurality of rectangular assembly plates 242 are arranged on the top of the first assembly plate 241, a plurality of protruding rods 243 are fixedly installed on the top of the rectangular assembly plate 242, a spring 244 is arranged on the outer movable sleeve of the protruding rod 243, a second assembly plate 245 is arranged on the outer movable sleeve of the protruding rod 243, when the second assembly plate 245 contacts with the aluminum alloy plate and the aluminum alloy plate is under pressure, the protruding rod 243 protrudes from the second assembly plate 245, thereby further improving the fixing effect of the aluminum alloy plate.

[0063] The positions of the lower support plate 24 and the rectangular pressing plate 315 correspond to each other.

[0064] A guide rail 4 is arranged on the top of the inner wall of the assembly shell 1, and a servo motor 41 is arranged at both ends of the guide rail 4. A screw rod 42 is fixedly installed on the output shaft of the servo motor 41, and the screw rod 42 is threadedly connected to the rectangular movable plate 21. When the servo motor 41 receives the pulse signal sent by the control system, it will rotate accurately according to the number, frequency and direction of the signal. The output shaft of the servo motor 41 is connected to the screw rod 42, and the rotational motion of the motor is converted into the rotation of the screw rod 42. The screw rod 42 is equipped with a nut that matches it, and the nut is fixed together with the rectangular movable plate 21. As the screw rod 42 rotates, the nut will make a linear motion along the axial direction of the screw rod 42, thereby driving the rectangular movable plate 21 to make a corresponding linear motion, thereby realizing the accurate conversion of the rotational motion of the servo motor 41 into the linear motion of the rectangular movable plate 21.

[0065] A method for using a mechanical stretching treatment device for removing residual stress of an aluminum alloy plate comprises the following steps: S1: according to the size of the aluminum alloy plate, a servo motor 41 drives a bottom support structure 2 to move, the bottom support structure 2 can support the aluminum alloy plate at a suitable position, assist in placing the aluminum alloy plate, and at the same time, a corresponding top limit structure 3 above also moves accordingly;

[0066] S2: According to the size of the aluminum alloy plate, select the installation and placement method of the aluminum alloy plate, and the rotatable pressing plate 321 can be fixed or non-fixed;

[0067] S3: When the aluminum alloy plate is small in size, the structure composed of the fixed plug plate 331 and the connecting buckle 332 is disassembled, the rotatable pressing plate 321 is vertical, and the aluminum alloy plate can be put down from between the two rectangular pressing plates 315, and the aluminum alloy plate is placed on the lower support plate 24;

[0068] S4: The piston rod of the first electric push rod 22 pushes the auxiliary support plate 23 and the lower support plate 24. The rectangular pressure plate 315 and the rotatable pressure plate 321 form a horizontal structure. The structure composed of the three is used to initially fix the aluminum alloy plate. The servo motor 41 drives the movement of the bottom support structure 2, and the top limit structure 3 also moves accordingly, thereby stretching the heated aluminum alloy plate.

[0069] Working principle:

[0070] Step 1: According to the size of the aluminum alloy plate, adjust the structure on the assembly shell 1. The output shaft of the servo motor 41 drives the screw 42 to rotate, thereby driving the bottom support structure 2 to move, ensuring that the bottom support structure 2 can support the aluminum alloy plate in a suitable position and assist in the placement of the aluminum alloy plate. At the same time, the corresponding top limit structure 3 above also moves accordingly.

[0071] Step 2: According to the size of the aluminum alloy plate, select the installation and placement method of the aluminum alloy plate. The rotatable pressing plate 321 can be selected to be fixed or non-fixed. When the size of the aluminum alloy plate is small, select the adjustment of the rotatable pressing plate 321. When the fixed plug plate 331 and the connecting buckle 332 are disassembled, the aluminum alloy plate is placed between the two rectangular pressing plates 315. The aluminum alloy plate applies pressure to the rotatable pressing plate 321. The rotatable pressing plate 321 rotates around the rectangular pressing plate 315. When the rotatable pressing plate 321 is vertical, the aluminum alloy plate can be lowered from between the two rectangular pressing plates 315. The aluminum alloy plate is placed on the lower support plate 24. The piston rod of the first electric push rod 22 pushes the auxiliary support plate 23 and the lower support plate 24 to rise. The lower support plate 24 drives the aluminum alloy plate to rise. The aluminum alloy plate reaches between the lower support plate 24 and the rectangular pressing plate 315. The pressing plate 321 contacts the upper surface of the aluminum alloy plate, and the rotatable pressing plate 321 rotates around the rectangular pressing plate 315. The rectangular pressing plate 315 and the rotatable pressing plate 321 form a horizontal structure. The structure composed of the three initially fixes the aluminum alloy plate, and the piston rod of the second electric push rod 26 pushes the lower support bar 27 up to further fix the aluminum alloy plate. At the same time, when the second assembly plate 245 contacts and is pressurized with the aluminum alloy plate, the protruding rod 243 extends from the second assembly plate 245, and the protruding rod 243 applies pressure to the bottom of the aluminum alloy plate to further fix the aluminum alloy plate. The servo motor 41 drives the screw rod 42 to rotate, thereby driving the rectangular movable plate 21 and the bottom support structure 2 to move, and the top limit structure 3 also moves, thereby stretching the heated aluminum alloy plate to remove the stress of the aluminum alloy plate.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical stretching treatment device for removing residual stress of an aluminum alloy plate, comprising an assembly housing, characterized in that: The assembly housing is provided with: A bottom support structure movably mounted on the assembly housing, used to apply an upward force to the bottom of the aluminum alloy plate; A top limiting structure movably mounted on the assembly housing is used to apply a downward force to the top of the aluminum alloy plate; The top limiting structure comprises a sliding part, a rotating part and a fixing part; The sliding parts are arranged symmetrically on the left and right, and the near ends of the sliding parts are each provided with a rotating part, which is folded by rotating the rotating part downward, and a gap for the aluminum alloy plate to fall is left between the sliding parts arranged symmetrically on the left and right.

2. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 1, characterized in that: When the rotating part is in a horizontal state, the rotating part and the horizontal part of the sliding part form a pressure-applying part for the aluminum alloy plate.

3. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 2, characterized in that: The fixing part is composed of a fixing buckle, a fixing plug plate movably inserted into the fixing buckle, and a connecting buckle for fixing the fixing plug plate.

4. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 3, characterized in that: The sliding portion includes a sliding assembly; The sliding assembly is slidably connected to the assembly housing and is used for limiting the sliding of the top limiting structure; An L-shaped plate is fixedly installed on the top of the sliding assembly, and the top of the L-shaped plate is rotatably connected to a fixed shaft, and an elastic pressing sheet is rotatably connected to the fixed shaft; A rectangular pressing plate is movably mounted on the L-shaped plate, a movable plug-in is arranged between the L-shaped plate and the rectangular pressing plate for fixing, and the elastic pressing sheet applies pressure to the movable plug-in for fixing.

5. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 4, characterized in that: The rotating part includes a hinge, and a rotatable pressing plate is provided at the other end of the hinge, and the rotatable pressing plate and the rectangular pressing plate are fixed by the hinge; The rotatable pressing plate is fixed with an elastic band via a pressing block, and a protective plate is provided at the bottom of the hinge for shielding and protection.

6. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 5, characterized in that: The bottom support structure includes a rectangular movable plate, which moves along the axis on the assembly housing; The bottom support structure further comprises a first electric push rod, on the piston rod of which an auxiliary support plate for vertical up and down movement is fixedly mounted, and on the top of the auxiliary support plate a lower support plate is fixedly mounted, and the lower support plate is used to support the aluminum alloy plate to rise; Side fixing bars are also provided on both sides of the bottom supporting structure, a second electric push rod is fixedly installed on the top of the side fixing bar, a lower supporting bar is fixedly installed on the top of the piston rod of the second electric push rod, and the lower supporting bar is used for pressurizing and fixing the aluminum alloy plate.

7. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 6, characterized in that: The lower support plate includes a first assembly plate fixed on the auxiliary support plate, a plurality of rectangular assembly plates are arranged on the top of the first assembly plate, a plurality of protruding rods are fixedly installed on the top of the rectangular assembly plate, a spring is arranged on the outer movable sleeve of the protruding rod, and a second assembly plate is arranged on the outer movable sleeve of the protruding rod.

8. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 7, characterized in that: The positions of the lower support plate and the rectangular pressing plate correspond to each other.

9. The mechanical stretching treatment equipment for removing residual stress of aluminum alloy plate according to claim 8, characterized in that: A guide rail is arranged on the top of the inner wall of the assembly shell, and a servo motor is arranged at both ends of the guide rail. A screw rod is fixedly installed on the output shaft of the servo motor, and the screw rod is threadedly connected with the rectangular moving plate.

10. A method for using a mechanical stretching treatment device for removing residual stress from an aluminum alloy plate, used for the mechanical stretching treatment device for removing residual stress from an aluminum alloy plate as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: according to the size of the aluminum alloy plate, the servo motor drives the bottom support structure to move, the bottom support structure can support the aluminum alloy plate at a suitable position, assist in the placement of the aluminum alloy plate, and the corresponding top limit structure above also moves accordingly; S2: According to the size of the aluminum alloy plate, select the installation and placement method of the aluminum alloy plate. The rotatable pressure plate can be fixed or non-fixed; S3: When the aluminum alloy plate is small in size, the fixed plug plate and the connecting buckle structure are disassembled, the rotatable pressing plate is vertical, the aluminum alloy plate can be put down from between the two rectangular pressing plates, and the aluminum alloy plate is placed on the lower support plate; S4: The piston rod of the first electric push rod pushes the auxiliary support plate and the lower support plate. The rectangular pressure plate and the rotatable pressure plate form a horizontal structure. The structure composed of the three initially fixes the aluminum alloy plate. The servo motor drives the movement of the bottom support structure, and the top limit structure also moves accordingly, thereby stretching the heated aluminum alloy plate.

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