A fine-tuning device for bending dies of high-temperature aerospace alloy plates

Abstract

This utility model relates to the field of bending die technology and discloses a fine-tuning device for bending a high-temperature resistant aerospace alloy sheet metal. The device includes a worktable, an adjustable lower die, a fine-tuning mechanism, and a locking mechanism. The adjustable lower die includes a base plate, side plates, and a rotating shaft. The base plate is fixed to the worktable. Two side plates are located on either side of the base plate. The base plate and the inner sides of the side plates form a bending space. A rotating shaft is fixed to the bottom of each side plate and is rotatably connected to the base plate. The fine-tuning mechanism is mounted on the worktable and drives the two side plates to rotate in opposite directions. The locking mechanism is mounted on the worktable and locks the two side plates in place. This utility model facilitates angle adjustment within the die, thus adapting to bending materials of different types and thicknesses and counteracting the springback after bending.

Description

Technical Field

[0001] This utility model relates to the field of bending die technology, and in particular to a fine-tuning device for a high-temperature resistant aerospace alloy sheet bending die. Background Technology

[0002] High-temperature resistant aerospace alloy plates are a type of material made from high-temperature alloys such as nickel-based, titanium-based, and cobalt-based alloys through precision rolling and forging processes. These plates can maintain excellent mechanical properties in extreme high-temperature environments ranging from 600℃ to 1200℃, and possess high strength, creep resistance, corrosion resistance, and oxidation resistance, making them suitable for use in engine combustion chambers.

[0003] When bending high-temperature resistant aerospace alloy sheets using a die, a springback phenomenon occurs due to the material's inherent properties. For example, when bending the sheet 90° using a die, considering the material's springback, the internal angle of the die might need to be set to 91°, 92°, etc. However, the springback angle varies depending on the thickness and type of the high-temperature resistant aerospace alloy sheet. Existing high-temperature resistant aerospace alloy sheet bending dies have fixed internal angles, making it impossible to adjust them according to different thicknesses and types of materials, resulting in limited applicability. Therefore, there is an urgent need to develop a fine-tuning device for high-temperature resistant aerospace alloy sheet bending dies that allows for convenient adjustment of the internal angle, adapting to bending materials of different types and thicknesses, and counteracting the springback after bending. This would overcome the shortcomings of current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a fine-tuning device for bending dies of high-temperature resistant aerospace alloy plates, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fine-tuning device for bending a high-temperature resistant aerospace alloy sheet includes a worktable, an adjustable lower die, a fine-tuning mechanism, and a locking mechanism. The adjustable lower die comprises a base plate, side plates, and a rotating shaft. The base plate is fixed to the worktable. Two side plates are located on either side of the base plate, forming a bending space between the base plate and the inner sides of the side plates. A rotating shaft is fixed to the bottom of each side plate and rotatably connected to the base plate. The fine-tuning mechanism is mounted on the worktable and drives the two side plates to rotate in opposite directions. The locking mechanism is mounted on the worktable. The platform is used to lock and fix the two side plates. The locking mechanism includes: a rigid support shell, a clamping airbag, a diaphragm pump, a three-way connector, a guide tube, and a solenoid valve. There are two rigid support shells, which are fixed on the worktable. Each rigid support shell has a clamping airbag fixed inside. Each clamping airbag surrounds a side plate inside. The diaphragm pump is fixed on the worktable. The output port of the diaphragm pump is fixedly connected to a three-way connector. Each clamping airbag is connected to the three-way connector through a guide tube. Each guide tube is equipped with a solenoid valve.

[0007] Preferably, the fine-tuning mechanism includes a servo motor, a first gear, a second gear, a transmission shaft, a synchronous pulley, and a synchronous belt. The servo motor is fixed on the worktable, and the output shaft of the servo motor is fixed to a rotating shaft via a coupling. A first gear is fixed on the output shaft of the servo motor, and a second gear meshing with the first gear is provided on one side of the first gear. The transmission ratio of the first gear and the second gear is 1:1. The second gear is fixed on the transmission shaft, and the transmission shaft is rotatably connected to the base plate. A synchronous pulley is fixed on the transmission shaft, and a synchronous pulley is also fixed on the rotating shaft away from the servo motor. The two synchronous pulleys are connected by a synchronous belt.

[0008] Preferably, an upper mold structure is installed on the worktable above the adjustable lower mold, and the upper mold structure is used in conjunction with the adjustable lower mold.

[0009] Preferably, the upper mold structure includes a hydraulic cylinder and an upper mold head, wherein the hydraulic cylinder is fixed on the worktable, and the telescopic end of the hydraulic cylinder is fixed to the upper mold head.

[0010] Preferably, a hydraulic station is fixed on the workbench, and the hydraulic station is used to supply hydraulic oil to the hydraulic cylinder.

[0011] The beneficial effects of this utility model are as follows: When using the fine-tuning device for the high-temperature resistant aerospace alloy sheet bending die, the high-temperature resistant aerospace alloy sheet is placed on the adjustable lower die. The upper die head is moved downwards by a hydraulic cylinder, pressing the high-temperature resistant aerospace alloy sheet into the adjustable lower die for bending and forming. During adjustment, the clamping airbag is first deflated by a diaphragm pump, causing the clamping airbag to loosen the side plate. The deflated airbag reduces its volume, providing space for the rotation and adjustment of the side plate. Then, a servo motor drives a rotating shaft and the side plate to rotate. Simultaneously, the servo motor drives the first gear, the second gear, and the transmission shaft to rotate. The transmission shaft drives another rotating shaft and the side plate to rotate via a synchronous pulley and synchronous belt, thereby adjusting the tilt angle of the two side plates and thus adjusting the bending angle inside the base plate and the two side plates. The springback angle of the compensation material is finely adjusted. After adjustment, the clamping airbag is inflated by a diaphragm pump to clamp the side plate, and the solenoid valve is closed to maintain the stability of the side plate. In summary, this utility model allows for convenient adjustment of the internal angle of the mold, thereby adapting to the bending of materials of different types and thicknesses and counteracting the springback of the material after bending. Attached Figure Description

[0012] Figure 1 This is a front structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0014] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0015] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0016] Figure 5 This is a partial structural diagram of the present invention. Figure 3 .

[0017] Legend:

[0018] 1. Workbench; 2. Adjustable lower mold; 201. Base plate; 202. Side plate; 203. Rotating shaft; 3. Upper mold structure; 301. Hydraulic cylinder; 302. Upper mold head; 4. Hydraulic station; 5. Fine-tuning mechanism; 501. Servo motor; 502. First gear; 503. Second gear; 504. Drive shaft; 505. Synchronous pulley; 506. Synchronous belt; 6. Locking mechanism; 601. Rigid support shell; 602. Clamping airbag; 603. Diaphragm pump; 604. T-joint; 605. Guide pipe; 606. Solenoid valve; 7. PLC controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Specific implementation examples are given below.

[0021] See Figures 1-5In this embodiment of the present invention, a fine-tuning device for a high-temperature resistant aerospace alloy sheet bending die includes a worktable 1, an adjustable lower die 2, a fine-tuning mechanism 5, and a locking mechanism 6. The adjustable lower die 2 is used for bending and forming high-temperature resistant aerospace alloy sheets. The adjustable lower die 2 includes a base plate 201, side plates 202, and a rotating shaft 203. The base plate 201 is fixed on the worktable 1. There are two side plates 202, which are located on both sides of the base plate 201. The inner sides of the base plate 201 and the two side plates 202 form a... The bending and forming space is formed. Each side plate 202 has a fixed rotating shaft 203 at its bottom. The rotating shaft 203 is rotatably connected to the base plate 201. The fine adjustment mechanism 5 is installed on the worktable 1 and is used to drive the two side plates 202 to rotate in opposite directions. The fine adjustment mechanism 5 includes: servo motor 501, first gear 502, second gear 503, transmission shaft 504, synchronous pulley 505 and synchronous belt 506. The servo motor 501 is fixed on the worktable 1. The model of the servo motor 501 is 8LVB33.B1004L1CS00, this model features a self-locking output shaft. The output shaft of the servo motor 501 is fixed to a rotating shaft 203 via a coupling. A first gear 502 is fixed on the output shaft of the servo motor 501, and a second gear 503 meshes with it on one side. The transmission ratio of the first gear 502 to the second gear 503 is 1:1. The second gear 503 is fixed on a transmission shaft 504, which is rotatably connected to a base plate 201. A synchronous pulley 5 is fixed on the transmission shaft 504. 05. A synchronous pulley 505 is also fixed on the shaft 203 away from the servo motor 501. The two synchronous pulleys 505 are connected by a synchronous belt 506. The shaft 203 directly connected to the output shaft of the servo motor 501 rotates in the same direction as the servo motor 501. The servo motor 501 drives the first gear 502 and the second gear 503 to drive the transmission shaft 504 to rotate. The rotation direction of the transmission shaft 504 is opposite to that of the servo motor 501. The shaft 203 away from the servo motor 501 is connected by the synchronous pulley 505 and the synchronous belt. 506 is connected to the drive shaft 504, and its rotation direction is the same as that of the drive shaft 504. Therefore, the rotation directions of the two rotating shafts 203 are opposite. The locking mechanism 6 is installed on the workbench 1 and is used to lock and fix the two side plates 202. The locking mechanism 6 includes: a rigid support shell 601, a clamping airbag 602, a diaphragm pump 603, a three-way connector 604, a guide pipe 605, and a solenoid valve 606. There are two rigid support shells 601, which are fixed on the workbench 1. Each rigid support shell 601 has a clamping airbag 602 fixed inside. Each clamping airbag 602 surrounds a side plate 202 on its inner side. A diaphragm pump 603 is fixed to the workbench 1. The diaphragm pump 603 can both inflate and deflate. A three-way connector 604 is fixedly connected to the output port of the diaphragm pump 603. Each clamping airbag 602 is connected to the three-way connector 604 through a guide tube 605. A solenoid valve 606 is installed on each guide tube 605. In use, the diaphragm pump 603 inflates the clamping airbag 602, causing it to expand and clamp the side plate 202, thus improving the stability of the side plate 202.

[0022] An upper mold structure 3 is installed on the worktable 1 above the adjustable lower mold 2. The upper mold structure 3 works in conjunction with the adjustable lower mold 2. The upper mold structure 3 includes a hydraulic cylinder 301 and an upper mold head 302. The hydraulic cylinder 301 is fixed on the worktable 1. The telescopic end of the hydraulic cylinder 301 is fixed to the upper mold head 302. In use, the hydraulic cylinder 301 drives the upper mold head 302 to move down, and the upper mold head 302 presses the high-temperature resistant aerospace alloy plate into the adjustable lower mold 2 for bending and forming.

[0023] A hydraulic station 4 is fixed on the workbench 1. The hydraulic cylinder 301 is connected to the hydraulic station 4 through an oil pipe (not shown). The hydraulic station 4 is used to supply hydraulic oil to the hydraulic cylinder 301, thereby driving the operation of the hydraulic cylinder 301.

[0024] A PLC controller 7 is fixed on the side of the workbench 1. The PLC controller 7 is used to control the hydraulic station 4, servo motor 501, diaphragm pump 603 and solenoid valve 606.

[0025] Working principle: The fine-tuning device of this high-temperature resistant aerospace alloy sheet bending die works by placing the high-temperature resistant aerospace alloy sheet onto the adjustable lower die 2. The hydraulic cylinder 301 drives the upper die head 302 downwards, pressing the high-temperature resistant aerospace alloy sheet into the adjustable lower die 2 for bending and shaping. For adjustment, the diaphragm pump 603 first releases air from the clamping airbag 602, causing the clamping airbag 602 to loosen the side plate 202. The reduced volume of the clamping airbag 602 after deflating provides space for the rotation and adjustment of the side plate 202. Then, the servo motor 501 drives a rotating shaft. 203 and side plate 202 rotate. At the same time, servo motor 501 drives first gear 502, second gear 503 and drive shaft 504 to rotate. Drive shaft 504 drives another rotating shaft 203 and side plate 202 to rotate through synchronous pulley 505 and synchronous belt 506, thereby adjusting the tilt angle of the two side plates 202, thereby adjusting the bending angle inside the base plate 201 and the two side plates 202. After adjusting the springback angle of the compensation material by fine adjustment, the diaphragm pump 603 inflates the clamping airbag 602 to clamp the side plate 202 and closes the solenoid valve 606 to maintain the stability of the side plate 202.

[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fine-tuning device for a high-temperature resistant aerospace alloy sheet bending die, characterized in that, The system includes a worktable (1), an adjustable lower mold (2), a fine-tuning mechanism (5), and a locking mechanism (6). The adjustable lower mold (2) includes a base plate (201), side plates (202), and a rotating shaft (203). The base plate (201) is fixed on the worktable (1). There are two side plates (202) located on both sides of the base plate (201). The base plate (201) and the inner sides of the two side plates (202) form a bending and forming space. A rotating shaft (203) is fixed at the bottom of each side plate (202). The rotating shaft (203) is rotatably connected to the base plate (201). The fine-tuning mechanism (5) is installed on the worktable (1) and is used to drive the two side plates (202) to rotate in opposite directions. The locking mechanism (6) is installed on the worktable (1) and is used to lock and fix the two side plates (202). The locking mechanism (6) includes: a rigid support shell (601), a clamping airbag (602), a diaphragm pump (603), a three-way connector (604), a guide tube (605), and a solenoid valve (606). There are two rigid support shells (601) and they are fixed on the workbench (1). Each rigid support shell (601) has a clamping airbag (602) fixed inside. Each clamping airbag (602) surrounds a side plate (202) inside. The diaphragm pump (603) is fixed on the workbench (1). The output port of the diaphragm pump (603) is fixedly connected to a three-way connector (604). Each clamping airbag (602) is connected to the three-way connector (604) through a guide tube (605). Each guide tube (605) is equipped with a solenoid valve (606).

2. The fine-tuning device for the high-temperature resistant aerospace alloy sheet bending die according to claim 1, characterized in that, The fine-tuning mechanism (5) includes: a servo motor (501), a first gear (502), a second gear (503), a transmission shaft (504), a synchronous pulley (505), and a synchronous belt (506). The servo motor (501) is fixed on the worktable (1). The output shaft of the servo motor (501) is fixed to a rotating shaft (203) via a coupling. The first gear (502) is fixed on the output shaft of the servo motor (501). A second gear (503) is provided on one side of the first gear (502) to mesh with it. Two gears (503), the transmission ratio of the first gear (502) and the second gear (503) is 1:1, the second gear (503) is fixed on the transmission shaft (504), the transmission shaft (504) is rotatably connected to the base plate (201), a synchronous pulley (505) is fixed on the transmission shaft (504), and a synchronous pulley (505) is also fixed on the shaft (203) away from the servo motor (501), and the two synchronous pulleys (505) are connected by a synchronous belt (506).

3. The fine-tuning device for the high-temperature resistant aerospace alloy sheet bending die according to claim 1, characterized in that, An upper mold structure (3) is installed on the workbench (1) above the adjustable lower mold (2), and the upper mold structure (3) is used in conjunction with the adjustable lower mold (2).

4. The fine-tuning device for the high-temperature resistant aerospace alloy sheet bending die according to claim 3, characterized in that, The upper mold structure (3) includes a hydraulic cylinder (301) and an upper mold head (302). The hydraulic cylinder (301) is fixed on the worktable (1), and the telescopic end of the hydraulic cylinder (301) is fixed to the upper mold head (302).

5. The fine-tuning device for the high-temperature resistant aerospace alloy sheet bending die according to claim 4, characterized in that, A hydraulic station (4) is fixed on the workbench (1), and the hydraulic station (4) is used to supply hydraulic oil to the hydraulic cylinder (301).

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