A magnesium alloy billet pretreatment device

Abstract

The utility model discloses a kind of magnesium alloy blank pretreatment device, it is related to magnesium alloy processing technical field.The utility model includes cleaning assembly, the inside cavity of cleaning assembly one side is fixedly connected with clamping assembly, and cleaning assembly includes cleaning tank, the inside cavity bottom of cleaning tank is fixedly connected with ultrasonic cleaner, the inside cavity of cleaning tank and located the upper side fixedly connected with filter screen of ultrasonic cleaner, and the clamping assembly includes the mounting bracket fixedly connected in the one side of cleaning tank.The utility model is cleaned using ultrasonic cleaner cooperation conventional cleaning solution, without acid liquor, avoid the above-mentioned problem from source, first motor in clamping assembly can drive rack and blank rotation simultaneously, ensure that blank each surface is evenly subjected to ultrasonic effect, improve cleaning uniformity;Clamping plate can stably clamp different specifications blank by screw rod adjustment, prevent blank displacement when cleaning, further guarantee blank integrity and mechanical property not be damaged.

Description

Technical Field

[0001] This utility model belongs to the field of magnesium alloy processing technology, and in particular relates to a pretreatment device for magnesium alloy billets. Background Technology

[0002] Magnesium alloys are alloys composed of magnesium as the base metal and other elements. Magnesium alloys are the lightest of the practical metals; magnesium's specific gravity is approximately 2 / 3 that of aluminum and 1 / 4 that of iron. They possess high strength and high rigidity. Magnesium alloys have a series of advantages, including low density, high specific strength and specific stiffness, and good impact resistance. The main alloying elements include aluminum, zinc, manganese, cerium, thorium, and small amounts of zirconium or cadmium. The most widely used are magnesium-aluminum alloys, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys. They are mainly used in the aerospace, transportation, chemical, and rocket industries.

[0003] Magnesium alloy billets require pre-treatment cleaning before processing. A Chinese patent application (CN210215558U) discloses a pre-treatment device for galvanized strip steel billets, including a pickling tank. Pressure rollers are installed on both sides of the pickling tank, and strip steel is fixed within the rollers. A spraying mechanism is installed at the front and rear of the strip steel. Each spraying mechanism includes a base, lifting rods, an inlet pipe, and rotating nozzles. The base is screwed into the pickling tank, and a lifting rod is bolted to each end of the base. The inlet pipe is fixed to the upper end of the lifting rod by a fixing plate, and several rotating nozzles are welded onto the inlet pipe. A water collection tank is provided at the bottom of the pickling tank. The spraying mechanism prevents the strip steel from being soaked in acid for too long, which could damage it. The lifting rods allow the spraying mechanism to move up and down, and the rotating nozzles spray while rotating, ensuring that the acid is evenly sprayed onto the strip steel surface, improving work efficiency and achieving better pickling results.

[0004] This patent uses acid pickling to clean metal materials. However, excessively high acid concentration, temperature, or processing time can lead to the dissolution of a large amount of magnesium alloy matrix, resulting in surface pits, pinholes, and even reduced mechanical properties. In addition, magnesium is a reactive metal that reacts with acid to release hydrogen gas. If hydrogen gas penetrates into the metal, it may cause hydrogen embrittlement, making the magnesium alloy prone to fracture under stress. Furthermore, the waste liquid after acid pickling contains magnesium ions and residual acid. Direct discharge would pollute the environment and requires neutralization, precipitation, and other treatments before it can meet emission standards.

[0005] To address these issues, we provide a magnesium alloy billet pretreatment apparatus. Utility Model Content

[0006] The purpose of this invention is to provide a pretreatment device for magnesium alloy billets, which solves the problems of over-corrosion, hydrogen embrittlement and environmental pollution caused by pickling in the prior art through the cooperation of the cleaning component and the clamping component.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a pretreatment device for magnesium alloy billets, comprising a cleaning assembly. A clamping assembly is fixedly connected to one side of the inner cavity of the cleaning assembly. The cleaning assembly includes a cleaning tank. An ultrasonic cleaner is fixedly connected to the bottom of the inner cavity of the cleaning tank. A filter screen is fixedly connected to the inner cavity of the cleaning tank and above the ultrasonic cleaner. The clamping assembly includes a mounting bracket fixedly connected to one side of the cleaning tank. A first hydraulic telescopic rod is fixedly connected to the bottom of the mounting bracket. A first motor is fixedly connected to the bottom of the first hydraulic telescopic rod. A placement bracket is fixedly connected to the output shaft of the first motor. A clamping plate is slidably connected to the inner cavity of the placement bracket. A lead screw is fixedly connected to the top of the clamping plate through a bearing. The top of the lead screw extends through to the top of the placement bracket and is threadedly connected to the placement bracket. A brush is fixedly connected to the other side of the cleaning tank.

[0009] The present invention is further configured such that the brushing component includes a fixed frame fixedly connected to the other side of the cleaning tank. A second hydraulic telescopic rod is fixedly connected to the top of the fixed frame. A mounting plate is fixedly connected to the output end of the second hydraulic telescopic rod. A third hydraulic telescopic rod is fixedly connected to both the front and rear ends of the mounting plate. A mounting frame is fixedly connected to the bottom of the third hydraulic telescopic rod. A cleaning brush is fixedly connected to the inner cavity of the mounting frame via bearings. A second motor is fixedly connected to the surface of the mounting frame. The output shaft of the second motor is fixedly connected to one end of the cleaning brush. The second hydraulic telescopic rod can adjust the position of the cleaning brush so that it can thoroughly brush the blank. The third hydraulic telescopic rod can push the mounting frame up and down to adjust the distance between the cleaning brush and the blank, ensuring close contact. The second motor drives the cleaning brush to rotate, which can brush away stubborn stains on the surface of the blank. Combined with ultrasonic cleaning, the cleanliness is further improved, and stains are prevented from remaining.

[0010] The present invention is further provided that each of the four corners of the bottom of the cleaning tank is fixedly connected with a pad, and the bottom of the pad is provided with anti-slip texture. The pad enhances the stability of the device and prevents displacement during operation.

[0011] The present invention is further configured such that a waste discharge pipe is connected to the bottom of one side of the cleaning tank, and a valve is fixedly connected to the inner cavity of the waste discharge pipe, so that the waste discharge pipe and the valve facilitate centralized management and discharge of wastewater.

[0012] The present invention is further configured such that a limiting groove is formed in the inner wall of the placement rack, a limiting block is slidably connected to the inner cavity of the limiting groove, and the other side of the limiting block is fixedly connected to the clamping plate. The limiting groove and the limiting block restrict the movement direction of the clamping plate to ensure stable sliding.

[0013] The present invention is further configured such that a threaded hole is provided on the top of the placement frame, and the lead screw is threadedly connected to the inner cavity of the threaded hole. The threaded hole and the lead screw cooperate to provide stable transmission for the lifting and lowering of the clamping plate.

[0014] The present invention is further configured such that a connector is fixedly connected to the surface of the third hydraulic telescopic rod, and the other side of the connector is fixedly connected to the mounting plate by bolts. The connector and bolts facilitate the installation, disassembly and maintenance of the third hydraulic telescopic rod.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model uses an ultrasonic cleaner in conjunction with conventional cleaning solution for cleaning, eliminating the need for acid and avoiding the aforementioned problems at the source. At the same time, the first motor in the clamping assembly can drive the placement rack and the billet to rotate, ensuring that all surfaces of the billet are uniformly subjected to ultrasonic waves, thus improving the uniformity of cleaning. The clamping plate can stably clamp billets of different specifications through the adjustment of the screw, preventing the billets from shifting during cleaning and further ensuring that the integrity and mechanical properties of the billets are not damaged.

[0017] 2. This utility model does not require acid, and the wastewater after cleaning has a simple composition with no residual acid or large amounts of magnesium ions, which greatly reduces the difficulty of subsequent treatment. The filter screen in the cleaning tank can intercept impurities generated during cleaning, avoiding impurities from increasing the burden of wastewater treatment. The waste discharge pipe and valve facilitate centralized collection and discharge of wastewater, reducing the impact of random discharge on the environment, meeting environmental protection requirements, and reducing the environmental treatment costs for enterprises. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a magnesium alloy billet pretreatment device.

[0020] Figure 2 This is a cross-sectional schematic diagram of a magnesium alloy billet pretreatment device.

[0021] Figure 3 This is a three-dimensional schematic diagram of a clamping component in a magnesium alloy billet pretreatment device.

[0022] Figure 4 This is a three-dimensional schematic diagram of a brushing component in a magnesium alloy billet pretreatment device.

[0023] Figure 5This is a schematic diagram of the connection structure between the placement rack and the clamping plate in a magnesium alloy billet pretreatment device.

[0024] In the attached diagram: 1. Cleaning assembly; 11. Cleaning tank; 12. Ultrasonic cleaner; 13. Filter screen; 14. Waste discharge pipe; 2. Clamping assembly; 21. Mounting frame; 22. First hydraulic telescopic rod; 23. First motor; 24. Placement frame; 25. Clamping plate; 26. Lead screw; 27. Brush; 271. Fixing frame; 272. Second hydraulic telescopic rod; 273. Mounting plate; 274. Third hydraulic telescopic rod; 275. Mounting frame; 276. Cleaning brush; 277. Second motor; 28. Limiting groove; 29. ​​Limiting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1-5 This utility model is a pretreatment device for magnesium alloy billets, including a cleaning component 1. A clamping component 2 is fixedly connected to one side of the inner cavity of the cleaning component 1. The cleaning component 1 includes a cleaning tank 11. An ultrasonic cleaner 12 is fixedly connected to the bottom of the inner cavity of the cleaning tank 11. A filter screen 13 is fixedly connected to the inner cavity of the cleaning tank 11 and above the ultrasonic cleaner 12. The clamping component 2 includes a mounting bracket 21 fixedly connected to one side of the cleaning tank 11. A first hydraulic telescopic rod 22 is fixedly connected to the bottom of the mounting bracket 21. A first motor 23 is fixedly connected to the bottom of the first hydraulic telescopic rod 22. A placement bracket 24 is fixedly connected to the output shaft of the first motor 23. A clamping plate 25 is slidably connected to the inner cavity of the placement bracket 24. A lead screw 26 is fixedly connected to the top of the clamping plate 25 through a bearing. The top of the lead screw 26 extends through to the top of the placement bracket 24 and is threadedly connected to the placement bracket 24. A brush 27 is fixedly connected to the other side of the cleaning tank 11.

[0027] Specifically, the cleaning tank 11 is made of corrosion-resistant stainless steel, which can resist long-term corrosion of the cleaning fluid and extend the service life of the device. The ultrasonic cleaner 12 can emit high-frequency ultrasonic waves, which generate cavitation effect in the cleaning fluid in the cleaning tank 11. The impact force of the cavitation bubbles breaking acts on the surface of the blank to achieve cleaning. The filter screen 13 is a metal mesh structure with a specific aperture, which can not only intercept cleaning impurities and prevent clogging of the ultrasonic cleaner 12 or discharge with wastewater, but also does not hinder the flow of cleaning fluid and the propagation of ultrasonic waves. The first motor 23 is a servo motor, which can accurately control the output shaft speed and rotation angle. The brushing component 27 can assist in brushing the blank.

[0028] The brushing component 27 includes a fixed frame 271 fixedly connected to the other side of the cleaning tank 11. A second hydraulic telescopic rod 272 is fixedly connected to the top of the fixed frame 271. A mounting plate 273 is fixedly connected to the output end of the second hydraulic telescopic rod 272. A third hydraulic telescopic rod 274 is fixedly connected to both the front and rear ends of the surface of the mounting plate 273. A mounting frame 275 is fixedly connected to the bottom of the third hydraulic telescopic rod 274. A cleaning brush 276 is fixedly connected to the inner cavity of the mounting frame 275 through a bearing. A second motor 277 is fixedly connected to the surface of the mounting frame 275. The output shaft of the second motor 277 is fixedly connected to one end of the cleaning brush 276. The second hydraulic telescopic rod 272 can adjust the position of the cleaning brush 276 so that it can thoroughly brush the blank. The third hydraulic telescopic rod 274 can push the mounting frame 275 up and down to adjust the distance between the cleaning brush 276 and the blank to ensure close contact. The second motor 277 drives the cleaning brush 276 to rotate, which can brush away stubborn stains on the surface of the blank. Combined with ultrasonic cleaning, it can further improve the cleanliness and avoid stain residue. The surface of the third hydraulic telescopic rod 274 is fixedly connected with a connector. The other side of the connector is fixedly connected to the mounting plate 273 by bolts. The connector and bolts facilitate the installation, disassembly and maintenance of the third hydraulic telescopic rod 274.

[0029] Each of the four corners of the bottom of the cleaning tank 11 is fixedly connected to a pad. The bottom of the pad is provided with anti-slip texture. The pad enhances the stability of the device and prevents displacement during operation. A waste discharge pipe 14 is connected to the bottom of one side of the cleaning tank 11. A valve is fixedly connected to the inner cavity of the waste discharge pipe 14. The waste discharge pipe 14 and the valve facilitate centralized management and discharge of wastewater.

[0030] The inner wall of the placement frame 24 has a limiting groove 28, and a limiting block 29 is slidably connected to the inner cavity of the limiting groove 28. The other side of the limiting block 29 is fixedly connected to the clamping plate 25. The limiting groove 28 and the limiting block 29 restrict the movement direction of the clamping plate 25 to ensure stable sliding. The top of the placement frame 24 has a threaded hole, and a lead screw 26 is threadedly connected to the inner cavity of the threaded hole. The threaded hole and the lead screw 26 cooperate to provide stable transmission for the lifting and lowering of the clamping plate 25.

[0031] The working principle of this utility model is as follows: First, the magnesium alloy billet to be pretreated is placed into the inner cavity of the placement frame 24 of the clamping assembly 2. The lead screw 26 is rotated, and through the cooperation between the lead screw 26 and the threaded hole at the top of the placement frame 24, the clamping plate 25 is driven to rise and fall along the inner cavity of the placement frame 24 until the clamping plate 25 is in close contact with the billet, thus completing the clamping of the billet. Then, the first hydraulic telescopic rod 22 extends, driving the first motor 23, the placement frame 24 and the billet to descend, so that the billet enters the cleaning liquid in the cleaning tank 11. Next, the ultrasonic cleaner 12 is started, using the cavitation effect to clean the stains on the surface of the billet. At the same time, the first motor 23 is started, driving the placement frame 24 and the billet to rise and fall. The material rotates to ensure that all surfaces of the billet are uniformly subjected to ultrasonic waves. During this process, the brushing component 27 operates, the second hydraulic telescopic rod 272 adjusts the length of the mounting plate 273, and the third hydraulic telescopic rod 274 pushes the mounting frame 275 and the cleaning brush 276 toward the billet, so that the cleaning brush 276 contacts the surface of the billet. The second motor 277 drives the cleaning brush 276 to rotate, assisting in the brushing of stubborn stains. After cleaning, the first hydraulic telescopic rod 22 shortens, lifting the billet out of the cleaning tank 11, where the operator removes the billet. Impurities generated during cleaning are intercepted by the filter screen 13, and wastewater can be discharged by opening the valve of the waste discharge pipe 14, completing the entire pretreatment process.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A magnesium alloy billet pretreatment device, comprising a cleaning assembly (1), characterized in that: A clamping assembly (2) is fixedly connected to one side of the inner cavity of the cleaning assembly (1); The cleaning assembly (1) includes a cleaning tank (11), an ultrasonic cleaner (12) is fixedly connected to the bottom of the inner cavity of the cleaning tank (11), and a filter screen (13) is fixedly connected to the inner cavity of the cleaning tank (11) and above the ultrasonic cleaner (12). The clamping assembly (2) includes a mounting bracket (21) fixedly connected to one side of the cleaning tank (11). A first hydraulic telescopic rod (22) is fixedly connected to the bottom of the mounting bracket (21). A first motor (23) is fixedly connected to the bottom of the first hydraulic telescopic rod (22). A placement frame (24) is fixedly connected to the output shaft of the first motor (23). A clamping plate (25) is slidably connected to the inner cavity of the placement frame (24). A lead screw (26) is fixedly connected to the top of the clamping plate (25) through a bearing. The top of the lead screw (26) extends through to the top of the placement frame (24) and is threadedly connected to the placement frame (24). A brush (27) is fixedly connected to the other side of the cleaning tank (11).

2. The magnesium alloy billet pretreatment device according to claim 1, characterized in that: The brushing component (27) includes a fixed frame (271) fixedly connected to the other side of the cleaning tank (11). A second hydraulic telescopic rod (272) is fixedly connected to the top of the fixed frame (271). A mounting plate (273) is fixedly connected to the output end of the second hydraulic telescopic rod (272). A third hydraulic telescopic rod (274) is fixedly connected to both the front and rear ends of the surface of the mounting plate (273). A mounting frame (275) is fixedly connected to the bottom of the third hydraulic telescopic rod (274). A cleaning brush (276) is fixedly connected to the inner cavity of the mounting frame (275) through a bearing. A second motor (277) is fixedly connected to the surface of the mounting frame (275). The output shaft of the second motor (277) is fixedly connected to one end of the cleaning brush (276).

3. The magnesium alloy billet pretreatment device according to claim 1, characterized in that: The bottom of the cleaning tank (11) is fixedly connected to four corners with pads, and the bottom of the pads is provided with anti-slip texture.

4. The magnesium alloy billet pretreatment device according to claim 1, characterized in that: The bottom of one side of the cleaning tank (11) is connected to a waste discharge pipe (14), and a valve is fixedly connected to the inner cavity of the waste discharge pipe (14).

5. The magnesium alloy billet pretreatment device according to claim 1, characterized in that: The inner wall of the placement rack (24) has a limiting groove (28), and the inner cavity of the limiting groove (28) is slidably connected to a limiting block (29). The other side of the limiting block (29) is fixedly connected to the clamping plate (25).

6. The magnesium alloy billet pretreatment device according to claim 1, characterized in that: The top of the placement rack (24) is provided with a threaded hole, and the lead screw (26) is threadedly connected to the inner cavity of the threaded hole.

7. The magnesium alloy billet pretreatment device according to claim 2, characterized in that: The surface of the third hydraulic telescopic rod (274) is fixedly connected to a connector, and the other side of the connector is fixedly connected to the mounting plate (273) by bolts.

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