Forging device and heat treatment process for aluminum alloy die forging

Abstract

The invention relates to a forging device and a heat treatment process for aluminum alloy die forgings, and relates to the technical field of aluminum alloy forging machining, the forging device comprises a quenching pool, a heat treatment device and a heat treatment device, the quenching pool is internally provided with a supporting frame used for supporting the forgings; the cooling tower is connected with the quenching bath and is used for cooling liquid in the quenching bath; the stirring paddle is rotationally erected on the quenching pool, and blades of the stirring paddle are located below the liquid level of the liquid in the quenching pool; the scraping plate is located on the side, close to the bottom of the quenching pool, of the supporting frame and slidably connected with the side wall of the quenching pool, and the side, close to the bottom of the quenching pool, of the scraping plate can abut against the bottom of the quenching pool; and a moving assembly for driving the scraping plate to slide is arranged on the quenching pool. By arranging a scraper, impurities in the quenching pool can be pushed to one side of the quenching pool by the scraper, so that a worker can conveniently clean the impurities in the quenching pool in a centralized manner, and the purpose of conveniently cleaning the quenching pool by the worker is achieved; the heat treatment process has the advantage of being easy to operate.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum alloy forging processing, and in particular to a forging device and a heat treatment process for aluminum alloy die forgings. Background Art

[0002] Aluminum alloy die forgings are parts made of aluminum alloy as raw material through the die forging process. It is a metal forming process. The formed parts after die forging will produce stress due to cold working, so quenching treatment is required to improve their performance.

[0003] Currently, the quenching of forgings is mainly achieved by placing the forgings in a quenching pool.

[0004] The above-mentioned related technologies have the following defects: during the quenching process of forgings, the oxide scale on the surface of the forgings is easily peeled off and scattered on the bottom of the quenching pool, which makes it inconvenient for the staff to clean the quenching pool. Summary of the invention

[0005] In order to facilitate the staff to clean the quenching pool, the present application provides a forging device and a heat treatment process for aluminum alloy die forgings.

[0006] In a first aspect, the present application provides a forging device for an aluminum alloy die forging, which adopts the following technical solution: A forging device for an aluminum alloy die forging, comprising: A quenching tank, wherein a support frame for supporting the forging is provided in the quenching tank; A cooling tower connected to the quenching tank to cool the liquid in the quenching tank; A stirring paddle is rotatably mounted on the quenching tank, and the blades of the stirring paddle are located below the liquid surface of the liquid in the quenching tank; The scraper is located on the side of the support frame close to the bottom of the quenching pool, is slidably connected to the side wall of the quenching pool, and the side of the scraper close to the bottom of the quenching pool can contact the bottom of the quenching pool; The quenching pool is provided with a moving component for driving the scraper to slide.

[0007] Furthermore, the mobile component includes: The movable lead screw is rotatably connected to the side wall of the quenching tank and is connected to the scraper to drive the scraper to slide; The movable motor is fixedly connected to the quenching tank, and the output shaft of the movable motor is coaxially fixedly connected to the movable lead screw.

[0008] Furthermore, the scraper is connected to the movable screw through a connecting assembly, and the connecting assembly includes: A connecting block, threadedly connected to the movable lead screw and slidingly connected to the side wall of the quenching tank; A connecting rod, one end of which is rotatably connected to the connecting block, and the other end of which is rotatably connected to the scraper; The connecting rod has one end slidingly hinged with the side wall of the quenching pool, and the other end is rotatably connected with the scraper, and the connection positions of the connecting rod, the connecting rod and the scraper are arranged in sequence along the direction away from the bottom of the quenching pool.

[0009] Furthermore, the central rod of the stirring paddle is hollow, and the cooling tower is connected to the quenching tank through a liquid inlet pipe, and the liquid inlet pipe includes: A connecting part connected to a cooling tower; The connecting part is connected with one end of the connecting part away from the cooling tower, and the connecting part extends into the central rod and is rotatably connected with the central rod. The central rod is provided with a plurality of connecting holes connected with the quenching pool.

[0010] Furthermore, an adjusting tube is provided inside the center rod, the adjusting tube is sleeved on the outside of the connecting part, the adjusting tube is coaxially rotatably connected to the center rod, a connecting hole that can be connected to the connecting hole is opened on the adjusting tube, and a rotating component for driving the center rod and the adjusting tube to rotate is provided on the quenching pool.

[0011] Furthermore, the forging device further comprises a flow stabilizing plate arranged between the scraper and the support frame, wherein a plurality of flow stabilizing plates are provided and the plurality of flow stabilizing plates are arranged at intervals, and the flow stabilizing plate comprises: An adjusting portion, rotatably connected to a side wall of the quenching tank; The connecting part is located on a side of the adjusting part close to the bottom of the quenching tank and is rotatably connected to the adjusting part; The quenching tank is provided with an adjustment component for adjusting the connection part and the rotation angle of the adjustment part.

[0012] Furthermore, the extension direction of the plurality of flow stabilizers is arranged perpendicular to the length direction of the scraper.

[0013] On the other hand, the present application provides a forging device for aluminum alloy die forgings, which adopts the following technical solution: A heat treatment process for an aluminum alloy die forging comprises the following steps: S1. After heating the blank to a certain temperature, the blank is placed in a die for forging to obtain a forging; S2, placing the forging into the forging device for quenching treatment.

[0014] In summary, the beneficial technical effect of the present application is that the setting of the scraper enables the scraper to push impurities in the quenching pool to one side of the quenching pool so that the staff can concentrate on cleaning the impurities in the quenching pool, thereby achieving the purpose of facilitating the staff to clean the quenching pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application.

[0016] Figure 2 It is a partial cross-sectional view of an embodiment of the present application to illustrate the moving components.

[0017] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0018] Figure 4 It is a partial cross-sectional view of an embodiment of the present application, to illustrate the cooperation between the scraper and the flow stabilizer.

[0019] Reference numerals: 100, quenching tank; 110, support frame; 111, support edge; 120, slide; 130, bearing frame; 131, cross plate; 132, bearing hydraulic cylinder; 200, cooling tower; 210, liquid inlet pipe; 211, connecting part; 212, connecting part; 220, first pump body; 230, second pump body; 300, stirring paddle; 310, center rod; 311, connecting hole; 320, paddle; 330, adjusting pipe; 331, connecting hole; 340, rotating assembly ; 341, rotating motor; 342, first driving gear; 343, second driving gear; 344, rotating gear; 345, rotating gear; 400, scraper; 410, connecting assembly; 411, connecting block; 412, connecting rod; 413, connecting rod; 414, sliding block; 415, connecting spring; 420, limiting block; 500, moving assembly; 510, moving motor; 520, moving screw; 600, flow stabilizer; 610, adjusting part; 620, connecting part. DETAILED DESCRIPTION

[0020] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0021] The present application embodiment discloses a forging device for aluminum alloy die forgings. Figure 1 and Figure 2The forging device includes a quenching pool 100, a cooling tower 200, a stirring paddle 300 and a scraper 400. The cross-section of the quenching pool 100 is rectangular. The liquid inlet end of the cooling tower 200 is connected to the quenching pool 100 through the first pump body 220, so that the liquid with a higher temperature in the quenching pool 100 can flow into the cooling tower 200 for cooling. The liquid outlet end of the cooling tower 200 is connected to the quenching pool 100 through the second pump body 230 to return the cooled liquid to the quenching pool 100. In order to facilitate the staff to put the forgings into the quenching pool 100, a support frame 110 for supporting the forgings is set up in the quenching pool 100.

[0022] A carrier frame 130 is mounted above the quenching pool 100. The carrier frame 130 includes a transverse plate 131 and two bearing hydraulic cylinders 132. The two bearing hydraulic cylinders 132 are respectively arranged on both sides of the quenching pool 100. The transverse plate 131 is mounted on the two bearing hydraulic cylinders 132, and both sides of the transverse plate 131 are fixedly connected to the piston rods of the bearing hydraulic cylinders 132 on the corresponding side.

[0023] The stirring paddle 300 is rotatably connected to the horizontal plate 131. The central rod 310 of the stirring paddle 300 is hollow to form a cavity. A connecting hole 311 communicating with the cavity is provided on the central rod 310 of the stirring paddle 300, and the connecting hole 311 close to the bottom of the quenching pool 100 is spaced apart from the bottom of the cavity, so that some liquid can be retained in the cavity. The liquid inlet end of the cooling tower 200 is connected with a liquid inlet pipe 210. The liquid inlet pipe 210 includes a connecting portion 211 and a connecting portion 212, wherein the connecting portion 211 is a hose and the connecting portion 212 is a hard pipe. One end of the connecting portion 211 is connected to the first pump body 220 and the cooling tower 200, and the other end is rotatably connected to the connecting portion 212 through a rotary joint, and the connecting portion 212 is inserted into the cavity of the stirring paddle 300, and the connecting portion 212 extends below the liquid level in the cavity.

[0024] When the agitator paddle 300 rotates, it can drive the liquid around the agitator paddle 300 to rotate. At this time, the liquid with a higher temperature will flow toward the center rod 310 close to the agitator paddle 300 and flow into the cavity through the connecting hole 311, so that the liquid with a higher temperature in the quenching pool 100 can be quickly recovered to the cooling tower 200 for cooling under the action of the first pump body 220.

[0025] In order to better recover the liquid with a higher temperature to the cooling tower 200, a regulating pipe 330 is provided in the central pipe, and the regulating pipe 330 is rotatably sleeved on the outside of the connecting portion 212, and the regulating pipe 330 is coaxially rotatably connected with the central rod 310. The regulating pipe 330 is provided with a connecting hole 331 that can be connected with the connecting hole 311, and the quenching pool 100 is provided with a rotating assembly 340 for driving the central rod 310 and the regulating pipe 330 to rotate.

[0026] The rotating assembly 340 includes a rotating motor 341, a first driving gear 342, a second driving gear 343, a rotating gear 344 and a rotating gear 345. The body of the rotating motor 341 is fixedly connected to the horizontal plate 131, and the first driving gear 342 and the second driving gear 343 are both coaxially fixedly connected to the output shaft of the rotating motor 341. The central rod 310 of the stirring paddle 300 is coaxially fixedly connected to the rotating gear 344, and the rotating gear 344 is meshed with the first driving gear 342. The end of the regulating tube 330 away from the bottom of the quenching tank 100 extends beyond the central rod 310 of the stirring paddle 300 and is coaxially fixedly connected to the rotating gear 345, and the rotating gear 345 is meshed with the second driving gear 343, and the number of teeth of the rotating gear 345 is different from the number of teeth of the rotating gear 344, so that there is a difference between the rotation speed of the stirring paddle 300 and the rotation speed of the connecting portion 212.

[0027] When the rotating motor 341 drives the stirring paddle 300 to rotate, it also drives the regulating tube 330 to rotate. Since the number of teeth of the rotating gear 345 and the rotating gear 344 are different, the rotation speeds of the rotating gear 345 and the rotating gear 344 are different, that is, when the connecting hole 311 and the connecting hole 331 are aligned, the liquid with a higher temperature enters the cavity from the connecting hole 311 and the connecting hole 331; when the stirring paddle 300 and the regulating tube 330 continue to rotate, the connecting hole 311 and the connecting hole 331 are no longer aligned, and at this time, it is not easy for the liquid to enter the cavity from the connecting hole 311 and the connecting hole 331. The differential rotation of the regulating tube 330 and the stirring paddle 300 can make the connecting hole 311 and the connecting hole 331 intermittently aligned, so as to give the liquid with a higher temperature enough time to flow toward the center rod 310 of the stirring paddle 300.

[0028] Reference Figure 2 and Figure 3 The scraper 400 extends along the width direction of the quenching pool 100, and the scraper 400 is slidably connected to the side wall of the quenching pool 100 along the length direction of the quenching pool 100. The quenching pool 100 is provided with a moving assembly 500 for driving the scraper 400 to slide.

[0029] There are two groups of moving assemblies 500, which are arranged on both sides of the scraper 400, and the moving assemblies 500 include a moving lead screw 520 and a moving motor 510. The body of the moving motor 510 is fixedly connected to the outer wall of the quenching tank 100, and the output shaft of the moving motor 510 is coaxially fixedly connected to the moving lead screw 520. One end of the moving lead screw 520 away from the moving motor 510 extends into the quenching tank 100 and is rotatably connected to the side wall of the quenching tank 100 on the corresponding side. The moving motor 510 is started so that the moving motor 510 drives the corresponding moving lead screw 520 to rotate, thereby driving the scraper 400 to move.

[0030] Both ends of the scraper 400 are connected to the movable lead screw 520 on the corresponding side through the connecting assembly 410. The connecting assembly 410 includes a connecting block 411, a connecting rod 412 and a connecting rod 413. The two opposite side walls of the quenching pool 100 are provided with corresponding slide grooves 120 along the length direction of the quenching pool 100. The slide groove 120 is a T-shaped groove. A slider that matches the shape of the slide groove 120 is fixedly connected to the connecting block 411. The slider is slidably connected to the slide groove 120 and the connecting block 411 is threadedly connected to the movable lead screw 520, so that the movable lead screw 520 drives the connecting block 411 to move. One end of the connecting rod 412 is rotatably connected to the scraper 400, and the other end is rotatably connected to the connecting block 411. One end of the connecting rod 413 is rotatably connected to the scraper 400, and the other end is rotatably connected to a sliding block 414 that is slidably connected to the slide groove 120. Along the direction away from the quenching pool 100 , the connection positions of the connecting rod 412 , the connecting rod 413 and the scraper 400 are arranged in sequence, and along the forward direction of the scraper 400 when cleaning the quenching pool 100 , the slider is located behind the sliding block 414 .

[0031] When the scraper 400 moves forward, the movable lead screw 520 first drives the slider to slide, that is, the connecting block 411 moves first, until the slider moves to the point where it contacts the sliding block 414, thereby driving the scraper 400 to move. When the scraper 400 is reset, the movable lead screw 520 first drives the slider to slide, thereby driving the connecting rod 412 to pull the scraper 400 close to the bottom of the quenching pool 100 to rotate, thereby releasing the conflict between the scraper 400 and the bottom of the quenching pool 100. When the scraper 400 rotates to a certain angle, it cannot continue to rotate. At this time, the slider continues to move, which can drive the sliding block 414 to reset, that is, the scraper 400 is reset.

[0032] In order to make the scraper 400 less susceptible to the flatness of the bottom of the quenching tank 100 , a connecting spring 415 is fixedly connected to the connecting block 411 , and the connecting spring 415 can contact the sliding block 414 .

[0033] Reference Figure 3 and Figure 4 In order to reduce the disturbance of the liquid in the quenching pool 100 caused by the movement of the scraper 400, so that impurities such as scale on the bottom of the quenching pool 100 are not easy to flow with the liquid, a flow stabilizer 600 is provided in the quenching pool 100. The flow stabilizer 600 is located between the scraper 400 and the support frame 110, and multiple flow stabilizers 600 are provided. Multiple flow stabilizers 600 are arranged in sequence along the length direction of the quenching pool 100, so that the flow stabilizers 600 divide the liquid in the quenching pool 100 into multiple areas, thereby reducing the disturbance of the liquid in the quenching pool 100 caused by the movement of the scraper 400.

[0034] The flow stabilizer 600 includes an adjusting portion 610 and a connecting portion 620. One side of the connecting portion 620 is rotatably connected to the side of the support frame 110 close to the quenching tank 100 and close to the bottom of the tank, and the other side is rotatably connected to the adjusting portion 610. The side of the adjusting portion 610 away from the connecting portion 620 can extend to the moving track of the scraper 400 and contact the side of the scraper 400 away from the ground, and the adjusting portion 610 and the connecting portion 620 are set at an angle.

[0035] When the scraper 400 rotates toward the position where it contacts the bottom of the quenching pool 100, the other side of the scraper 400 rotates away from the bottom of the quenching pool 100, thereby driving the adjusting portion 610 to rotate away from the bottom of the quenching pool 100, and then the flow stabilizer 600 rotates, that is, the angle between the adjusting portion 610 and the connecting portion 620 becomes smaller, so that the liquid is not easily disturbed under the action of the flow stabilizer 600; when the scraper 400 rotates toward the position where it releases the contact with the bottom of the quenching pool 100, the other side of the scraper 400 rotates toward the bottom of the quenching pool 100, so that the free end of the adjusting portion 610 of the flow stabilizer 600 gradually rotates toward the bottom of the quenching pool 100, and then the flow stabilizer 600 rotates, that is, the adjusting portion 610 and the connecting portion 620 rotate in a direction parallel to each other, so that impurities dropped from the forging are not easily accumulated on the flow stabilizer 600.

[0036] In order to further reduce the angle between the adjusting part 610 and the connecting part 620 so as to improve the flow stabilizing effect of the flow stabilizer 600, a plurality of limit blocks 420 are fixedly connected to the side of the scraper 400 away from the bottom of the quenching pool 100. The limit blocks 420 correspond to the flow stabilizer 600 one by one, and the limit blocks 420 can contact the free end of the adjusting part 610. When the adjusting part 610 contacts the limit blocks 420, the rotation of the scraper 400 is not easy to continue to drive the adjusting part 610 and the scraper 400 to cause relative displacement, so that the adjusting part 610 drives the connecting part 620 to rotate, thereby achieving the purpose of reducing the angle between the adjusting part 610 and the connecting part 620.

[0037] In order to facilitate the staff to remove impurities scraped off by the scraper 400, the support frame 110 is set in a U shape, and support edges 111 are fixedly connected at both ends of the support frame 110, and the support edges 111 can contact the side walls of the quenching pool 100 on the corresponding side to achieve a detachable connection between the support frame 110 and the quenching pool 100, so that the staff can start the load-bearing hydraulic cylinder 132 to lift the cross plate 131, and then take out the support frame 110 and the flow stabilizer 600 to clean the impurities in the quenching pool 100.

[0038] Based on the forging device described above, the present application also proposes a heat treatment process for aluminum alloy die forgings, comprising the following steps: S1. After heating the blank to a certain temperature, the blank is placed in a die for forging to obtain a forging; S2. Place the forging into the forging device for quenching.

[0039] The implementation principle of a forging device for an aluminum alloy die forging according to an embodiment of the present application is as follows: a forging to be quenched is placed on a support frame 110, and at this time, the rotating motor 341 is started so that the rotating motor 341 drives the stirring paddle 300 to rotate, so that the stirring paddle 300 stirs the liquid in the quenching pool 100 and at the same time the first pump body 220 operates to recover the liquid with a higher temperature in the quenching pool 100 to the cooling tower 200; when it is necessary to clean the impurities in the quenching pool 100, the moving motor 510 is started so that the moving motor 510 drives the moving screw 520 and moves the scraper 400 to collect the impurities at the bottom of the quenching pool 100; when the impurities are collected to a certain extent, the staff takes out the support frame 110 and then takes out the impurities in a concentrated manner.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A forging device for aluminum alloy die forgings, characterized in that: include: A quenching pool (100), wherein a support frame (110) for supporting a forging is arranged in the quenching pool (100); A cooling tower (200) is connected to the quenching pool (100) to cool the liquid in the quenching pool (100); A stirring paddle (300) is rotatably mounted on the quenching pool (100), and a blade (320) of the stirring paddle (300) is located below the liquid surface of the liquid in the quenching pool (100); The scraper (400) is located on a side of the support frame (110) close to the bottom of the quenching pool (100), is slidably connected to the side wall of the quenching pool (100), and the side of the scraper (400) close to the bottom of the quenching pool (100) can contact the bottom of the quenching pool (100); The quenching pool (100) is provided with a moving component (500) for driving the scraper (400) to slide.

2. The forging device for aluminum alloy die forgings according to claim 1, characterized in that: The moving assembly (500) comprises: A movable lead screw (520) is rotatably connected to a side wall of the quenching tank (100) and is connected to the scraper (400) to drive the scraper (400) to slide; The movable motor (510) is fixedly connected to the quenching pool (100), and the output shaft of the movable motor (510) is coaxially fixedly connected to the movable lead screw (520).

3. The forging device for aluminum alloy die forgings according to claim 2, characterized in that: The scraper (400) is connected to the movable lead screw (520) via a connecting assembly (410), wherein the connecting assembly (410) comprises: A connecting block (411) is threadedly connected to the movable lead screw (520) and is slidingly connected to the side wall of the quenching tank (100); A connecting rod (412), one end of which is rotatably connected to the connecting block (411), and the other end of which is rotatably connected to the scraper (400); The connecting rod (413) has one end slidably hinged to the side wall of the quenching pool (100) and the other end rotatably connected to the scraper (400), and the connection positions of the connecting rod (412), the connecting rod (413) and the scraper (400) are arranged in sequence in a direction away from the bottom of the quenching pool (100).

4. The forging device for aluminum alloy die forgings according to claim 3, characterized in that: The central rod (310) of the stirring paddle (300) is hollow, and the cooling tower (200) is connected to the quenching tank (100) via a liquid inlet pipe (210). The liquid inlet pipe (210) comprises: A communication portion (211) communicates with the cooling tower (200); The connecting portion (212) is connected to an end of the connecting portion (211) away from the cooling tower (200), and the connecting portion (212) extends into the center rod (310) and is rotatably connected to the center rod (310). The center rod (310) is provided with a plurality of connecting holes (311) connected to the quenching pool (100).

5. The forging device for aluminum alloy die forgings according to claim 4, characterized in that: An adjusting tube (330) is arranged inside the central rod (310), the adjusting tube (330) is sleeved on the outside of the connecting portion (212), the adjusting tube (330) is coaxially rotatably connected to the central rod (310), a connecting hole (331) capable of communicating with the connecting hole (311) is provided on the adjusting tube (330), and a rotating assembly (340) for driving the central rod (310) and the adjusting tube (330) to rotate is provided on the quenching pool (100).

6. The forging device for aluminum alloy die forgings according to claim 1, characterized in that: The forging device further comprises a flow stabilizing plate (600) arranged between the scraper (400) and the support frame (110), wherein a plurality of flow stabilizing plates (600) are provided, and the plurality of flow stabilizing plates (600) are arranged at intervals, and the flow stabilizing plate (600) comprises: An adjusting portion (610) is rotatably connected to a side wall of the quenching tank (100); A connecting portion (620) is located on a side of the adjusting portion (610) close to the bottom of the quenching tank (100) and is rotatably connected to the adjusting portion (610); The quenching tank (100) is provided with an adjustment component (700) for adjusting the rotation angle of the connecting portion (620) and the adjustment portion (610).

7. The forging device for aluminum alloy die forgings according to claim 6, characterized in that: The extension direction of the plurality of flow stabilizing plates (600) is arranged perpendicular to the length direction of the scraper plate (400).

8. A heat treatment process for aluminum alloy die forgings, characterized in that: The steps include: S1. After heating the blank to a certain temperature, the blank is placed in a die for forging to obtain a forging; S2. Place the forging into the forging device described in any one of claims 1 to 7 for quenching treatment.

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