Heat treatment tool for aluminum alloy skin lattice structure plate

Abstract

The utility model discloses a heat treatment tool for an aluminum alloy skin lattice structure plate, which comprises a workpiece, an upper die and a lower die, a middle die with adjustable height is arranged between the upper die and the lower die, the middle die is arranged at the edges of the two opposite sides of the upper die and the lower die, the height of the middle die is the same as that of the workpiece, and the upper die is connected with the lower die. A hollow part is formed among the upper die, the lower die and the middle die, and the workpiece is fixed in the hollow part. According to the heat treatment tool, the water inlet direction and the water flow are well controlled, deformation after heat treatment is avoided, secondary shaping work after deformation is also avoided, and the heat treatment tool is convenient to use in the next procedure; the device is simple in overall structure, convenient to operate and wide in application range.

Description

Technical Field

[0001] The utility model relates to a heat treatment tooling for an aluminum alloy skin lattice structure plate, belonging to the technical field of manufacturing skin lattice structure plates. Background Technique

[0002] With the innovative development of aerospace technology and its in-depth integration with the civilian field, satellite communication, satellite navigation, satellite remote sensing, etc. have gradually served various industries in the people's livelihood field in depth, cultivating new economic growth points. High strength and lightweight have always been the pursuit goals of satellite structural materials. The skin lattice structure plate is an ideal material for current satellite structural plates, which is composed of two layers of thin-walled skins and a regularly arranged lattice structure in the middle, as Figure 1 shown.

[0003] The aluminum alloy skin lattice structure plate is fabricated by 3D printing combined with precision casting technology, which has the advantages of short production cycle and low cost, and can be mass-produced on a large scale. Its main process steps include making wax molds, embedding gypsum, baking and demolding, casting and forming, heat treatment, etc. For existing aluminum alloy skin lattice structure plates, due to their thin wall thickness, the general heat treatment tooling has a simple structure and cannot be fixed, thus failing to play a shaping role. During the heat treatment process, distortion and deformation often occur, and it is difficult to shape after heat treatment, which affects the product quality and even leads to scrapping. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat treatment tooling for an aluminum alloy skin lattice structure plate, which is convenient to use, can play a shaping role for the deformation of the aluminum alloy skin lattice plate after production, avoid deformation after heat treatment, and also avoid secondary shaping work after deformation.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a heat treatment tooling for an aluminum alloy skin lattice structure plate, including a workpiece, an upper die, and a lower die. An intermediate die with adjustable height is arranged between the upper die and the lower die, and the intermediate die is placed at the edges on the opposite sides of the upper die and the lower die. The height of the intermediate die is the same as that of the workpiece. A hollow part is formed between the upper die, the lower die, and the intermediate die, and the workpiece is fixed in the hollow part, and the thin-walled surface of the workpiece is closely attached to the inner side walls of the corresponding upper die and lower die.

[0006] The aforementioned heat treatment tooling for an aluminum alloy skin lattice structure plate further includes locking pins. The locking pins are placed at the edges on both sides of the upper die and the lower die. The locking pins sequentially penetrate the upper die, the intermediate die, and the lower die, and locking components are arranged at both ends of the locking pins. The locking pins fixedly connect the upper die, the intermediate die, and the lower die together.

[0007] The aforementioned heat treatment tooling for an aluminum alloy skin lattice structure plate, the locking component includes a nut, the outer side wall of the locking pin is provided with a thread, the nut is sleeved at both ends of the locking pin through the thread, and a platform portion is arranged at the inner end of the nut. The upper die, the middle die and the lower die can be fastened through the nut.

[0008] The aforementioned heat treatment tooling for an aluminum alloy skin lattice structure plate, positioning pins are arranged at both side edges of the bottom of the upper die where the middle die is not provided. Positioning grooves corresponding to the positions of the positioning pins are arranged on the upper surface of the lower die. The lower ends of the positioning pins are inserted into the positioning grooves. The positioning pins facilitate the positioning of the installation positions of the upper die and the lower die, and further fix the position of the workpiece.

[0009] The aforementioned heat treatment tooling for an aluminum alloy skin lattice structure plate, the lower end of the positioning pin is in the shape of a frustum of a cone with a gradually decreasing diameter, and the shape of the positioning groove corresponds to the shape of the lower end of the positioning pin, which is convenient for insertion.

[0010] The aforementioned heat treatment tooling for an aluminum alloy skin lattice structure plate, the middle die is integrally formed, and the height of the middle die is the same as the height of the workpiece. During use, the middle die with the corresponding height is replaced according to the height of the workpiece.

[0011] The aforementioned heat treatment tooling for an aluminum alloy skin lattice structure plate, the middle die is composed of a plurality of stacked die pieces. The plurality of die pieces are overlapped and stacked between the upper die and the lower die. The locking pin sequentially penetrates through the upper die, the plurality of die pieces, and the lower die. The height of the entire middle die is adjusted by adjusting the stacking number of the die pieces. The thickness of a single die piece is determined according to the precision of the workpiece.

[0012] Compared with the prior art, the heat treatment tooling of the present utility model well controls the water inlet direction and water flow rate, avoids deformation after heat treatment, and also avoids secondary shaping work after deformation, which is convenient for the use of subsequent processes; the present utility model not only has a simple overall structure and is easy to operate, but also can play a role in shaping the deformation of the aluminum alloy skin lattice plate after production; at the same time, the present utility model is also applicable to other similar skin lattice structure plates, and has a wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the structure of the locking pin and the locking component of the present utility model;

[0015] Figure 3 is a schematic diagram of the die piece structure of Embodiment 5 of the present utility model;

[0016] Figure 4 is a schematic diagram of the workpiece structure of the present utility model.

[0017] Reference numerals: 1 - workpiece, 2 - upper die, 3 - lower die, 4 - middle die, 5 - locking pin, 6 - locking component, 7 - positioning pin, 8 - positioning groove, 9 - nut, 10 - platform portion, 11 - diaphragm.

[0018] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Specific embodiments

[0019] Embodiment 1 of the present utility model: A heat treatment tooling for an aluminum alloy skin lattice structure plate, including a workpiece 1, an upper die 2 and a lower die 3. A middle die 4 with adjustable height is arranged between the upper die 2 and the lower die 3, and the middle die 4 is placed at the edges on the opposite sides of the upper die 2 and the lower die 3. The height of the middle die 4 can be adjusted according to the height of the workpiece 1 to make the height of the middle die 4 the same as that of the workpiece 1. A hollow part is formed between the upper die 2, the lower die 3 and the middle die 4, and the workpiece 1 is fixed in the hollow part, and the thin-walled surface of the workpiece 1 is closely attached to the inner side walls of the corresponding upper die 2 and lower die 3.

[0020] Embodiment 2 of the present utility model: A heat treatment tooling for an aluminum alloy skin lattice structure plate, including a workpiece 1, an upper die 2 and a lower die 3. A middle die 4 with adjustable height is arranged between the upper die 2 and the lower die 3, and the middle die 4 is placed at the edges on the opposite sides of the upper die 2 and the lower die 3. The height of the middle die 4 can be adjusted according to the height of the workpiece 1 to make the height of the middle die 4 the same as that of the workpiece 1. A hollow part is formed between the upper die 2, the lower die 3 and the middle die 4, and the workpiece 1 is fixed in the hollow part, and the thin-walled surface of the workpiece 1 is closely attached to the inner side walls of the corresponding upper die 2 and lower die 3.

[0021] It further includes a locking pin 5. The locking pin 5 is placed at the edges on both sides of the upper die 2 and the lower die 3. The locking pin 5 sequentially penetrates through the upper die 2, the middle die 4 and the lower die 3. Locking components 6 are arranged at both ends of the locking pin 5, and the locking pin 5 fixedly connects the upper die 2, the middle die 4 and the lower die 3 together. Among them, the locking component 6 includes a nut 9. A thread is provided on the outer side wall of the locking pin 5, and the nut 9 is sleeved on both ends of the locking pin 5 through the thread. A platform portion 10 is arranged at the inner end of the nut 9, and the upper die 2, the middle die 4 and the lower die 3 can be fastened through the nut 9.

[0022] Embodiment 3 of the present utility model: A heat treatment tooling for an aluminum alloy skin lattice structure plate, including a workpiece 1, an upper die 2 and a lower die 3. A middle die 4 with adjustable height is arranged between the upper die 2 and the lower die 3, and the middle die 4 is placed at the edges on the opposite sides of the upper die 2 and the lower die 3. The height of the middle die 4 can be adjusted according to the height of the workpiece 1 to make the height of the middle die 4 the same as that of the workpiece 1. A hollow part is formed between the upper die 2, the lower die 3 and the middle die 4, and the workpiece 1 is fixed in the hollow part, and the thin-walled surface of the workpiece 1 is closely attached to the inner side walls of the corresponding upper die 2 and lower die 3.

[0023] It further includes a locking pin 5 which is placed at the two side edges of the upper die 2 and the lower die 3. The locking pin 5 sequentially penetrates through the upper die 2, the middle die 4 and the lower die 3. Locking components 6 are arranged at both ends of the locking pin 5. The locking pin 5 fixedly connects the upper die 2, the middle die 4 and the lower die 3 together. Among them, the locking component 6 includes a nut 9. Threads are provided on the outer side wall of the locking pin 5. The nut 9 is sleeved on both ends of the locking pin 5 through the threads. A platform portion 10 is arranged at the inner end of the nut 9. The upper die 2, the middle die 4 and the lower die 3 can be fastened by the nut 9.

[0024] Positioning pins 7 are arranged at the two side edges of the bottom of the upper die 2 where the middle die 4 is not provided. Positioning grooves 8 corresponding to the positions of the positioning pins 7 are arranged on the upper surface of the lower die 3. The lower ends of the positioning pins 7 are inserted into the positioning grooves 8. The positioning pins 7 facilitate positioning the installation positions of the upper die 2 and the lower die 3 and further fix the position of the workpiece 1. Among them, the lower end of the positioning pin 7 is in the shape of a frustum of a cone with a gradually decreasing diameter. The shape of the positioning groove 8 corresponds to the shape of the lower end of the positioning pin 7, which facilitates insertion.

[0025] Embodiment 4 of the present utility model: A heat treatment tooling for an aluminum alloy skin lattice structure plate includes a workpiece 1, an upper die 2 and a lower die 3. An adjustable-height middle die 4 is arranged between the upper die 2 and the lower die 3, and the middle die 4 is placed at the edges on the opposite sides of the upper die 2 and the lower die 3. The height of the middle die 4 can be adjusted according to the height of the workpiece 1 to make the height of the middle die 4 the same as that of the workpiece 1. A hollow part is formed between the upper die 2, the lower die 3 and the middle die 4. The workpiece 1 is fixed in the hollow part, and the thin-wall surface of the workpiece 1 is closely attached to the inner side walls of the corresponding upper die 2 and lower die 3.

[0026] It further includes a locking pin 5 which is placed at the two side edges of the upper die 2 and the lower die 3. The locking pin 5 sequentially penetrates through the upper die 2, the middle die 4 and the lower die 3. Locking components 6 are arranged at both ends of the locking pin 5. The locking pin 5 fixedly connects the upper die 2, the middle die 4 and the lower die 3 together. Among them, the locking component 6 includes a nut 9. Threads are provided on the outer side wall of the locking pin 5. The nut 9 is sleeved on both ends of the locking pin 5 through the threads. A platform portion 10 is arranged at the inner end of the nut 9. The upper die 2, the middle die 4 and the lower die 3 can be fastened by the nut 9.

[0027] Positioning pins 7 are arranged at the two side edges of the bottom of the upper die 2 where the middle die 4 is not provided. Positioning grooves 8 corresponding to the positions of the positioning pins 7 are arranged on the upper surface of the lower die 3. The lower ends of the positioning pins 7 are inserted into the positioning grooves 8. The positioning pins 7 facilitate positioning the installation positions of the upper die 2 and the lower die 3 and further fix the position of the workpiece 1. Among them, the lower end of the positioning pin 7 is in the shape of a frustum of a cone with a gradually decreasing diameter. The shape of the positioning groove 8 corresponds to the shape of the lower end of the positioning pin 7, which facilitates insertion.

[0028] Among them, the middle die 4 is integrally formed, and the height of the middle die 4 is the same as the height of the workpiece 1. During use, the middle die 4 with a corresponding height is replaced according to the height of the workpiece 1.

[0029] Embodiment 5 of the present utility model: A heat treatment tooling for an aluminum alloy skin lattice structure plate, comprising a workpiece 1, an upper die 2 and a lower die 3. An intermediate die 4 with adjustable height is arranged between the upper die 2 and the lower die 3, and the intermediate die 4 is placed at the edges on the opposite sides of the upper die 2 and the lower die 3. The height of the intermediate die 4 can be adjusted according to the height of the workpiece 1 to make the height of the intermediate die 4 the same as that of the workpiece 1. A hollow part is formed between the upper die 2, the lower die 3 and the intermediate die 4. The workpiece 1 is fixed in the hollow part, and the thin-wall surface of the workpiece 1 is closely attached to the inner side walls of the corresponding upper die 2 and lower die 3.

[0030] It further includes a locking pin 5. The locking pin 5 is placed at the edges on both sides of the upper die 2 and the lower die 3. The locking pin 5 sequentially penetrates through the upper die 2, the intermediate die 4 and the lower die 3. Locking members 6 are arranged at both ends of the locking pin 5. The locking pin 5 fixedly connects the upper die 2, the intermediate die 4 and the lower die 3 together. Among them, the locking member 6 includes a nut 9. A thread is provided on the outer side wall of the locking pin 5, and the nut 9 is sleeved on both ends of the locking pin 5 through the thread. A platform portion 10 is arranged at the inner end of the nut 9. The upper die 2, the intermediate die 4 and the lower die 3 can be fastened through the nut 9.

[0031] Positioning pins 7 are arranged at the edges on both sides of the bottom of the upper die 2 where the intermediate die 4 is not provided. Positioning grooves 8 corresponding to the positions of the positioning pins 7 are arranged on the upper surface of the lower die 3. The lower ends of the positioning pins 7 are inserted into the positioning grooves 8. The positioning pins 7 facilitate the positioning of the installation positions of the upper die 2 and the lower die 3, and further fix the position of the workpiece 1. Among them, the lower end of the positioning pin 7 is in the shape of a frustum of a cone with a gradually decreasing diameter, and the shape of the positioning groove 8 corresponds to the shape of the lower end of the positioning pin 7, which is convenient for insertion.

[0032] The intermediate die 4 is composed of a plurality of stacked die pieces 11. The plurality of die pieces 11 are stacked and overlapped between the upper die 2 and the lower die 3. The locking pin 5 sequentially penetrates through the upper die 2, the plurality of die pieces 11 and the lower die 3. The height of the entire intermediate die 4 is adjusted by adjusting the stacking number of the die pieces 11. The thickness of a single die piece 11 is determined according to the error precision of the workpiece 1. The thicknesses of the single die pieces 11 are the same or different. The intermediate die 4 with the same height as the workpiece 1 can be stacked according to the die pieces 11 with the same or different thicknesses.

[0033] Working principle of an embodiment of the present utility model: When the present utility model is in use, the riser of the workpiece 1 is removed, and the upper and lower planes are repaired and leveled by means of, but not limited to, machining or grinding; the workpiece 1 is placed on the surface of the lower die 3 of the tooling, intermediate dies 4 with the same height as the workpiece 1 are added on both sides of the lower die 3, the upper die 2 is closed, the upper die 2 and the lower die 3 are positioned by the positioning pins 7, and then fastened by the locking pins 5. Finally, the whole is heat-treated. Among them, the height of the intermediate die 4 can be adjusted to adapt to workpieces 1 with different thicknesses.

Claims

1. A heat treatment tool for aluminum alloy skin lattice structure plate, characterized in that: The invention comprises a workpiece (1), an upper die (2) and a lower die (3); a middle die (4) with an adjustable height is arranged between the upper die (2) and the lower die (3); the middle die (4) is arranged at the edges of the upper die (2) and the lower die (3) on two opposite sides; a hollow portion is formed between the upper die (2), the lower die (3) and the middle die (4); the workpiece (1) is fixed in the hollow portion; and the thin-walled surface of the workpiece (1) is tightly fitted with the inner side walls of the corresponding upper die (2) and the lower die (3).

2. The heat treatment tool for aluminum alloy skin lattice structure plate according to claim 1 is characterized in that: It also includes a locking pin (5), which is placed on the edges of both sides of the upper mold (2) and the lower mold (3). The locking pin (5) passes through the upper mold (2), the middle mold (4) and the lower mold (3) in sequence, and locking components (6) are provided at both ends of the locking pin (5).

3. The heat treatment tooling for aluminum alloy skin lattice structure plate according to claim 2 is characterized in that: The locking component (6) comprises a nut (9), the outer wall of the locking pin (5) is provided with a thread, the nut (9) is sleeved on both ends of the locking pin (5) through the thread, and the inner end of the nut (9) is provided with a platform portion (10).

4. The heat treatment tool for aluminum alloy skin lattice structure plate according to claim 1, characterized in that: Positioning pins (7) are arranged on both side edges of the bottom of the upper mold (2) where the middle mold (4) is not arranged, and a positioning groove (8) corresponding to the position of the positioning pin (7) is arranged on the upper surface of the lower mold (3), and the lower end of the positioning pin (7) is inserted into the positioning groove (8).

5. The heat treatment tool for aluminum alloy skin lattice structure plate according to claim 4, characterized in that: The lower end of the positioning pin (7) is in the shape of a truncated cone with a gradually decreasing diameter, and the shape of the positioning groove (8) corresponds to the shape of the lower end of the positioning pin (7).

6. A heat treatment tool for aluminum alloy skin lattice structure plate according to claim 1, 2 or 3, characterized in that: The middle mold (4) is integrally formed, and the height of the middle mold (4) is the same as the height of the workpiece (1).

7. A heat treatment tool for aluminum alloy skin lattice structure plate according to claim 2 or 3, characterized in that: The middle mold (4) is composed of a plurality of stacked mold pieces (11), wherein the plurality of mold pieces (11) are overlapped and stacked between the upper mold (2) and the lower mold (3), and the locking pin (5) passes through the upper mold (2), the plurality of mold pieces (11), and the lower mold (3) in sequence.

Images