An apparatus for releasing internal stress of an aluminum plate

Abstract

The utility model provides a kind of equipment for releasing internal stress of aluminium plate, it is related to aluminium plate processing technical field, including equipment main body, fixedly arranged on support surface;Transmission device, the bottom inside equipment main body is arranged, for transmission aluminium plate;Press release device, fixedly arranged in the top inside equipment main body, for the press release internal stress to aluminium plate on transmission device;Two heating devices, install at the top and bottom inside press release device, by setting two heating devices located at the top and bottom of press release device, utilize fan to drive the external air current filtered by filter screen to enter device shell, after being heated by heating pipe, blow to the top and bottom of aluminium plate, realize the even heating of the upper surface and the whole of aluminium plate, effectively solve the problem of uneven temperature distribution and inconsistent internal stress release caused by one-sided or local heating in prior art.

Description

Technical Field

[0001] This utility model relates to the field of aluminum plate processing technology, and in particular to a device for releasing internal stress in aluminum plates. Background Technology

[0002] Aluminum sheets, as a lightweight, high-strength, and corrosion-resistant metal material, are widely used in aerospace, automotive manufacturing, and architectural decoration. During the rolling, welding, and cutting processes of aluminum sheets, internal stress is easily generated due to internal lattice distortion and uneven plastic deformation. The presence of internal stress can lead to deformation, cracking, and decreased dimensional accuracy in subsequent use or processing, seriously affecting product quality and service life. Therefore, stress relief treatment for aluminum sheets is a crucial step in ensuring their performance.

[0003] Currently, common methods for releasing internal stress in aluminum plates include natural aging, artificial aging, and mechanical vibration aging. Among these, the combination of artificial aging (heat treatment) and mechanical pressing is widely used due to its high efficiency and stable results. However, existing related equipment still has the following shortcomings:

[0004] Existing pressing devices are mostly rigid pressing structures. The pressure is not adjustable and lacks buffering during the pressing process. This not only easily causes damage or plastic deformation to the aluminum plate surface, but also cannot adapt to the processing requirements of aluminum plates of different thicknesses, resulting in uneven pressure distribution and insufficient release of internal stress.

[0005] Therefore, we propose a device for releasing internal stress in aluminum plates. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies. Most existing pressing devices are rigid pressing structures, and the pressure is not adjustable and lacks buffering during the pressing process. This not only easily causes damage or plastic deformation to the aluminum plate surface, but also cannot adapt to the processing requirements of aluminum plates of different thicknesses, resulting in uneven pressure distribution and insufficient release of internal stress.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A device for releasing internal stress in an aluminum plate includes: a main body fixedly mounted on a support surface; a transmission device disposed at the bottom inside the main body for transmitting the aluminum plate; a pressing release device fixedly mounted at the top inside the main body for pressing the aluminum plate on the transmission device to release internal stress; and two heating devices installed at the top and bottom inside the pressing release device and located on one side of the pressing release device for heating the aluminum plate to release internal stress.

[0009] As a preferred embodiment of this utility model, the press-release device includes: two hydraulic rods, fixedly installed at the top inside the main body of the device, and the connection of the hydraulic rods is also connected to a hydraulic station; a fixed plate, fixedly installed at the output end of the two hydraulic rods; four linear optical axes, fixedly installed inside the fixed plate and located at the four corners; a pressure seat, slidably connected to the four linear optical axes; a plurality of pressing rotating rollers, all installed at the bottom inside the pressure seat through bearings; and a plurality of connecting springs, fixedly installed between the fixed plate and the pressure seat.

[0010] As a preferred embodiment of this utility model, the two hydraulic rods are used to drive the fixed plate to descend or rise; when the fixed plate moves, it drives the pressure seat to rise or fall synchronously, thereby pressing the aluminum plate with several connecting springs; when the several connecting springs press, the connecting springs can rotate due to the movement of the aluminum plate.

[0011] As a preferred embodiment of this utility model, the heating device includes: a device shell, fixedly mounted on the main body of the equipment; a filter screen, fixedly mounted on the outer side of the device shell; a plurality of fans, fixedly mounted inside the device shell and located inside the filter screen; and a plurality of heating tubes, fixedly mounted inside the device shell and located inside the plurality of fans.

[0012] As a preferred embodiment of this utility model, when the fan is started, it will drive the airflow outside the device housing into the interior of the device housing; the filter screen is used to filter the airflow from the outside; several heating tubes are used to heat the incoming airflow and work in conjunction with the fan so that the hot airflow can be blown to the top and bottom of the aluminum plate for uniform heating.

[0013] As a preferred embodiment of this utility model, the transmission device includes: a plurality of transmission rollers, which are disposed at the bottom inside the main body of the equipment for supporting the aluminum plate; a plurality of rotating shafts, which are fixedly disposed on the front and back side walls of the plurality of transmission rollers; a plurality of connecting belts, which are sleeved between the plurality of transmission rollers for driving the transmission rollers to rotate; and a motor, which is disposed at one of the rotating shafts on the outside for driving the transmission rollers to rotate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, two heating devices are installed at the top and bottom of the press-release device. A fan drives external airflow filtered by a filter screen into the outer shell of the device. After being heated by the heating tube, the airflow is blown to the top and bottom of the aluminum plate, achieving uniform heating of the upper and lower surfaces and the entire aluminum plate. This effectively solves the problems of uneven temperature distribution and inconsistent internal stress release caused by unilateral or localized heating in the prior art. At the same time, the filter screen can filter dust and other impurities in the airflow, preventing the aluminum plate surface from being contaminated and ensuring the surface quality of the aluminum plate after processing.

[0016] In the pressing and releasing device, the hydraulic rod drives the fixed plate to move the pressure seat. Several connecting springs provide buffering during the pressing process, forming a flexible pressing structure, which avoids surface damage or plastic deformation of the aluminum plate caused by existing rigid pressing. At the same time, the pressing rotating roller rotates with the movement of the aluminum plate. With the elastic pressure of the connecting springs, it can adapt to the processing needs of aluminum plates of different thicknesses, ensuring uniform pressure distribution and solving the problems of non-adjustable pressure and insufficient release of internal stress in existing pressing methods. Attached Figure Description

[0017] Figure 1 A schematic diagram of the main structure of a device for releasing internal stress in an aluminum plate, provided by this utility model;

[0018] Figure 2 A schematic diagram of the internal structure of the main body of a device for releasing internal stress in an aluminum plate, provided by this utility model;

[0019] Figure 3 A schematic diagram of a pressure release device for an aluminum plate stress release apparatus provided by this utility model;

[0020] Figure 4 A schematic diagram of a heating device for releasing internal stress in an aluminum plate, provided by this utility model.

[0021] Legend: 10. Main body of equipment; 20. Press release device; 201. Hydraulic rod; 202. Fixing plate; 203. Linear optical axis; 204. Pressure seat; 205. Pressing rotating roller; 206. Connecting spring; 30. Heating device; 301. Device shell; 302. Filter screen; 303. Heating tube; 304. Fan; 40. Transmission device; 401. Transmission roller; 402. Rotating shaft; 403. Connecting belt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0026] like Figure 1-4 As shown, this utility model provides a technical solution: a device for releasing internal stress in an aluminum plate, comprising: a main body 10, fixedly mounted on a support surface; a transmission device 40, disposed at the bottom inside the main body 10, for transmitting the aluminum plate; a pressing release device 20, fixedly mounted at the top inside the main body 10, for pressing the aluminum plate on the transmission device 40 to release internal stress; and two heating devices 30, installed at the top and bottom inside the pressing release device 20 and located on one side of the pressing release device 20, for heating the aluminum plate to release internal stress.

[0027] The main body 10 provides the installation foundation and protective frame for the entire equipment, ensuring the stable operation of each component. The transmission device 40 smoothly transports the aluminum plate to be processed to the action area of ​​the pressing and releasing device 20 along a preset path. When the aluminum plate reaches the designated position, the pressing and releasing device 20 applies appropriate pressure to the aluminum plate, using mechanical force to promote the internal stress distribution of the aluminum plate to tend to be balanced. At the same time, the two heating devices 30 output heat flow from the top and bottom of the aluminum plate, respectively, using the heat effect to reduce the yield strength of the aluminum plate material, making it easier for the internal stress to be released through the small plastic deformation of the material. The synergistic effect of mechanical pressing and heating treatment significantly improves the efficiency and effect of internal stress release.

[0028] The press release device 20 includes: two hydraulic rods 201, fixedly installed at the top inside the main body 10 of the device, and a hydraulic station is connected to the connection of the hydraulic rods 201; a fixed plate 202, fixedly installed at the output end of the two hydraulic rods 201; four linear optical shafts 203, fixedly installed inside the fixed plate 202 and located at the four corners; a pressure seat 204, slidably connected to the four linear optical shafts 203; several pressing rotating rollers 205, all installed at the bottom inside the pressure seat 204 through bearings; and several connecting springs 206, fixedly installed between the fixed plate 202 and the pressure seat 204.

[0029] The hydraulic station provides power to the hydraulic rod 201, and controls the extension and retraction of the hydraulic rod 201 to drive the fixed plate 202 to rise and fall. The four linear optical shafts 203 guide and limit the pressure seat 204, ensuring that the pressure seat 204 remains horizontal during the lifting and lowering process and avoids deviation. The connecting spring 206 connects the fixed plate 202 and the pressure seat 204. When the fixed plate 202 descends, the spring is compressed and transmits the elastic force to the pressure seat 204, so that the pressing rotating roller 205 at the bottom of the pressure seat 204 contacts the surface of the aluminum plate. The pressing rotating roller 205 is mounted through bearings and can rotate flexibly, reducing friction damage between it and the aluminum plate. At the same time, it applies the elastic pressure of the spring evenly to the surface of the aluminum plate, realizing flexible pressing of the aluminum plate.

[0030] Two hydraulic rods 201 are used to drive the fixed plate 202 to descend or rise; when the fixed plate 202 moves, it drives the pressure seat 204 to rise or fall synchronously, thereby pressing the aluminum plate with several connecting springs 206; when the several connecting springs 206 are pressed, the movement of the aluminum plate allows the connecting springs 206 to rotate.

[0031] The hydraulic rod 201 receives the pressure signal from the hydraulic station and drives the fixed plate 202 to move vertically through the extension and retraction of the piston rod. The movement of the fixed plate 202 is transmitted to the pressure seat 204 through the connecting spring 206. When the fixed plate 202 descends, the connecting spring 206 is compressed, and its elastic potential energy is converted into downward pressure on the pressure seat 204, causing the pressure seat 204 to descend synchronously with the fixed plate 202 and finally act on the aluminum plate through the pressing rotating roller 205. When the transmission device 40 drives the aluminum plate forward, friction is generated between the aluminum plate and the pressing rotating roller 205, causing the pressing rotating roller 205 to rotate around the bearing. This rotation not only reduces the scratching of the aluminum plate surface, but also allows the connecting spring 206 to adapt to the small displacement of the rotating roller while maintaining pressure, ensuring that the pressure is always applied evenly to different positions of the aluminum plate and improving the uniformity of the internal stress released by pressing.

[0032] The heating device 30 includes: a device housing 301, which is fixedly mounted on the main body 10 of the equipment; a filter screen 302, which is fixedly mounted on the outside of the device housing 301; a plurality of fans 304, which are fixedly mounted inside the device housing 301 and located inside the filter screen 302; and a plurality of heating tubes 303, which are fixedly mounted inside the device housing 301 and located inside the plurality of fans 304.

[0033] The outer casing 301 provides installation space and protection for the internal components of the heating device 30, while also guiding the airflow. When the fan 304 is started, the outside air first passes through the filter 302 under the suction of the fan 304. The filter 302 intercepts dust, impurities and other particles in the air, preventing them from adhering to the surface of the aluminum plate or affecting the heating components. The filtered air enters the interior of the outer casing 301 and flows through the inner heating tube 303. The heating tube 303 is energized to generate heat, heating the air to the preset temperature. The fan 304 continues to work, pushing the heated air to the inner outlet of the outer casing 301, and finally blowing it directionally onto the aluminum plate to achieve the heating treatment of the aluminum plate.

[0034] When the fan 304 is started, it will drive the airflow from the outside of the device housing 301 into the inside of the device housing 301; the filter screen 302 is used to filter the airflow from the outside; several heating tubes 303 are used to heat the incoming airflow and work in conjunction with the fan 304 so that the hot airflow can be blown to the top and bottom of the aluminum plate for uniform heating.

[0035] The operation of fan 304 generates airflow power, causing the air outside the device housing 301 to form a directional airflow, which enters the interior through the air inlet of the device housing 301. The airflow first passes through filter screen 302, whose porous structure physically intercepts solid impurities in the airflow, ensuring the cleanliness of the airflow entering subsequent stages. The clean airflow continues to flow to the heating tube 303 area, where the heating tube 303 converts electrical energy into heat energy, causing the flowing airflow to heat up rapidly. Fan 304 continuously provides thrust, sending the heated airflow out from the air outlet of device housing 301. Since the two heating devices 30 are located at the top and bottom of the aluminum plate respectively, the heated airflow can act on the upper and lower surfaces of the aluminum plate simultaneously. The cooperation of multiple fans 304 and heating tubes 303 forms a uniform heat flow field, ensuring that the heating temperature of each area of ​​the aluminum plate is consistent, creating temperature conditions for the uniform release of internal stress.

[0036] The transmission device 40 includes: a plurality of transmission rollers 401, which are disposed at the bottom inside the main body 10 of the equipment and are used to support the aluminum plate; a plurality of rotating shafts 402, which are fixedly disposed on the front and back side walls of the plurality of transmission rollers 401; a plurality of connecting belts 403, which are sleeved between the plurality of transmission rollers 401 and are used to drive the transmission rollers 401 to rotate; and a motor, which is disposed at one of the rotating shafts 402 on the outer side and is used to drive the transmission rollers 401 to rotate.

[0037] The motor, acting as a power source, outputs torque after being energized and transmits it to the rotating shaft 402 connected to it, driving the corresponding transmission roller 401 to rotate. Since the connecting belt 403 is sleeved between the rotating shafts 402 of adjacent transmission rollers 401, when one transmission roller 401 rotates, the friction of the connecting belt 403 drives the other transmission rollers 401 to rotate synchronously, achieving the same direction and speed of operation for all transmission rollers 401. The aluminum plate is placed on the transmission roller 401. When the transmission roller 401 rotates, the friction between its surface and the aluminum plate drives the aluminum plate to move smoothly along the transmission direction. Several transmission rollers 401 are evenly distributed to provide stable support for the aluminum plate, preventing the aluminum plate from bending and deforming due to its own weight during transmission. This ensures that the aluminum plate can accurately and continuously pass through the heating and pressing areas, guaranteeing the continuity and stability of the internal stress release process.

[0038] The working process of this aluminum plate stress relief device is as follows:

[0039] First, the aluminum plate to be processed is placed on the transmission roller 401 of the transmission device 40. The motor is started, and the motor drives one of the transmission rollers 401 to rotate through the rotating shaft 402. Then, through the connecting belt 403, all the transmission rollers 401 rotate synchronously in the same direction. Under the action of the friction of the transmission rollers 401, the aluminum plate smoothly enters the equipment body 10 along the preset path.

[0040] When the aluminum plate is transferred to the working area of ​​the heating device 30, the heating device 30 is activated: the fan 304 drives the external airflow to enter the device housing 301 after being filtered by the filter screen 302. The filtered clean airflow is heated to the preset temperature when it flows through the heating tube 303. Then, under the thrust of the fan 304, the hot airflow is blown from the heating devices 30 at the top and bottom of the aluminum plate to the aluminum plate at the same time, so as to achieve uniform heating of the upper and lower surfaces and the whole of the aluminum plate, creating suitable temperature conditions for the release of internal stress.

[0041] As the aluminum plate continues to be conveyed to the area below the pressing and releasing device 20, the pressing and releasing device 20 is activated: the hydraulic station drives the hydraulic rod 201 to extend, which in turn drives the fixed plate 202 to descend. The fixed plate 202 pushes the pressure seat 204 to descend vertically along the linear optical axis 203 through the connecting spring 206, until the pressing rotating roller 205 at the bottom of the pressure seat 204 contacts the surface of the aluminum plate. The connecting spring 206 is compressed to generate elastic pressure, which is evenly applied to the surface of the aluminum plate through the pressing rotating roller 205 to form a flexible press.

[0042] During the continuous conveying of the aluminum plate by the conveying device 40, the friction between the aluminum plate and the pressing roller 205 causes the pressing roller 205 to rotate synchronously with the movement of the aluminum plate. This reduces frictional damage to the surface of the aluminum plate and causes the connecting spring 206 to undergo adaptive deformation while maintaining pressure, ensuring that the pressure is applied evenly to different positions of the aluminum plate. At the same time, the heating device 30 continuously provides uniform heat flow. The mechanical pressing and the thermal action work together to promote the release of internal stress in the aluminum plate through micro-plastic deformation.

[0043] Finally, the aluminum plate that has completed the internal stress release continues to move under the drive of the transmission device 40, gradually separating from the heating area and the pressing area, and is eventually transported out of the main body 10 of the equipment, completing the entire internal stress release process.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for releasing internal stress in aluminum plates, characterized in that, include: The main body of the equipment (10) is fixedly mounted on the support surface; A transmission device (40) is installed at the bottom inside the main body (10) of the equipment for transmitting aluminum plates; The press release device (20) is fixedly installed on the top inside the main body (10) of the equipment and is used to press and release the internal stress of the aluminum plate on the transmission device (40). Two heating devices (30) are installed at the top and bottom inside the press release device (20) and on one side of the press release device (20) for heating the aluminum plate to release internal stress.

2. The device for releasing internal stress in an aluminum plate according to claim 1, characterized in that, The press release device (20) includes: Two hydraulic rods (201) are fixedly installed at the top inside the main body of the equipment (10), and a hydraulic station is also connected to the connection of the hydraulic rods (201); A fixing plate (202) is fixedly installed at the output end of the two hydraulic rods (201); Four linear optical axes (203) are fixedly installed inside the fixed plate (202) and located at the four corners; The pressure seat (204) is slidably connected to the four linear optical axes (203); Several pressing and rotating rollers (205) are all mounted on the bottom of the pressure seat (204) via bearings; Several connecting springs (206) are fixedly disposed between the fixed plate (202) and the pressure seat (204).

3. The device for releasing internal stress in an aluminum plate according to claim 2, characterized in that, The two hydraulic rods (201) are used to drive the fixed plate (202) to descend or rise; When the fixed plate (202) moves, it drives the pressure seat (204) to rise or fall synchronously, thereby pressing the aluminum plate with several connecting springs (206); When the connecting springs (206) are pressed, the movement of the aluminum plate causes the connecting springs (206) to rotate.

4. The device for releasing internal stress in an aluminum plate according to claim 3, characterized in that, The heating device (30) includes: The outer casing (301) of the device is fixedly mounted on the main body (10) of the equipment; The filter screen (302) is fixedly installed on the outside of the device housing (301); Several fans (304) are fixedly installed inside the housing (301) of the device and located inside the filter screen (302); Several heating tubes (303) are fixedly installed inside the device housing (301) and located inside several fans (304).

5. The device for releasing internal stress in an aluminum plate according to claim 4, characterized in that, When the fan (304) is started, it will drive the airflow outside the device housing (301) into the interior of the device housing (301); The filter (302) is used to filter the airflow from the outside. Several heating tubes (303) are used to heat the incoming airflow and work in conjunction with a fan (304) to allow the hot airflow to be blown to the top and bottom of the aluminum plate for uniform heating.

6. The device for releasing internal stress in an aluminum plate according to claim 5, characterized in that, The transmission device (40) includes: Several transfer rollers (401) are set at the bottom inside the main body (10) of the equipment to support the aluminum plate; Several rotating shafts (402) are fixedly mounted on the front and back side walls of several transmission rollers (401); Several connecting belts (403) are fitted between several transmission rollers (401) to drive the transmission rollers (401) to rotate; The motor is located on one of the outer rotating shafts (402) and is used to drive the transmission roller (401) to rotate.

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