Aluminum alloy tee joint integral forming process and device

Abstract

The invention discloses an integral forming process and device for an aluminum alloy tee joint and solves the problem that existing three aluminum alloy tee joint machining processes have large defects, the integral forming process comprises a forming die mechanism, and the forming die mechanism comprises a lower die on the lower portion and an upper die on the upper portion. When the lower die makes contact with the upper die, inner cavities of the lower die and the upper die are combined to form a limiting cavity, a branch pipe forming cavity is formed in the inner bottom wall of the lower die and penetrates to the bottom of the lower die, pushing heads are symmetrically arranged on the two sides of the upper die, and the two pushing heads can enter the limiting cavity to conduct pushing compensation on a product blank placed in the limiting cavity. A pressure forming piece is arranged between the upper die and the push heads, and a water inlet supporting piece is arranged between the two push heads; in the working process, a tubular blank is heated to be in a softening and shaping state, pressure is generated on the tubular blank through pushing heads at the two ends, and the tubular blank deforms and expands towards the interior of a branch pipe forming cavity to generate a branch pipe.

Description

Technical Field

[0001] The present invention belongs to the technical field of integral forming of tees, and particularly relates to an integral forming process and device for aluminum alloy tees. Background Art

[0002] Aluminum alloy tees are generally produced by three processes, and the production processes are as follows: First, forged tees: processed after forging, used in occasions with higher pressure bearing; Second, welded tees: in the case of low internal pressure, there are also methods of opening holes in the main pipe, inserting the branch pipe for welding or using the placed branch pipe method; Third, drawn or stamped tees: using the method of forming the branch pipe by drawing through small holes. For these tee processing processes, forged tee products have good performance, but at the same time, there are disadvantages such as low material utilization rate, high processing cost, and long processing cycle; welded tees have problems such as discontinuous welded joint structure, stress concentration, difficult-to-overcome joint defects, and difficult detection; the branch pipe drawing or stamping method has problems that cannot be overcome by processes such as short branch pipe length and large forming thinning amount. Since the existing three tee processing processes all have disadvantages, it is necessary to provide an integral forming process for aluminum alloy tees to optimize the tee processing process. Summary of the Invention

[0003] In view of the above situation, to overcome the defects of the prior art, the present invention provides an integral forming process and device for aluminum alloy tees, effectively solving the problem that the existing three aluminum alloy tee processing processes all have relatively large defects.

[0004] To achieve the above object, the present invention provides the following technical solution: An integral forming process for aluminum alloy tees, and the forming steps are as follows:

[0005] S1. Blank treatment: Cut the product blank, and perform annealing heat treatment on the blank at a temperature of ℃;

[0006] S2. Mold use: Move the upper mold upward to open, place the product blank in the lower mold, and then move the upper mold downward to make the product blank enter the limiting cavity;

[0007] S3. Pressurized production: The push heads on both sides move towards the limiting cavity, generating pressure on both ends of the blank, causing the middle part to bulge towards the branch pipe forming cavity to form a branch pipe. During this process, hot water is introduced into the blank to generate an outward supporting force on the inner wall of the blank;

[0008] S4. Cooling and forming: Introduce cold water into the blank for cooling;

[0009] S5. Blanking and collection: Open the upper mold upward, take out and blank the formed tee.

[0010] Preferably, an integral forming device for an aluminum alloy tee includes a forming die mechanism. The forming die mechanism includes a lower die below and an upper die above. When the lower die and the upper die are in contact, a limiting cavity is formed by combining their inner cavities. A branch pipe forming cavity is opened on the inner bottom wall of the lower die, and the branch pipe forming cavity penetrates to the bottom of the lower die. Push heads are symmetrically arranged on both sides of the upper die. The two push heads can enter the limiting cavity to push and compensate the product blank placed in the limiting cavity. A pressure forming part is arranged between the upper die and the push heads, and a water inlet support part is arranged between the two push heads. Positioning grooves are opened at the four corners of the top end of the lower die, and positioning blocks are installed at the four corners of the bottom end of the upper die.

[0011] Preferably, the pressure forming part includes a hydraulic tank fixedly installed at the top end of the upper die. Two piston plates are symmetrically and movably installed inside the hydraulic tank. Connecting rods are installed on the sides of the two piston plates away from each other, and the two connecting rods are respectively fixedly connected to the two push heads. Two first springs are symmetrically installed between the two piston plates. A C-shaped pipe is installed on the back of the hydraulic tank, and the two ends of the C-shaped pipe are respectively communicated with the spaces on the sides of the hydraulic tank where the two piston plates are away from each other. A first liquid inlet pipe is installed in the middle of the C-shaped pipe.

[0012] Preferably, the water inlet support part includes a water injection groove opened inside the push head. A U-shaped pipe is installed at the end of the push head away from the upper die, and the U-shaped pipe is communicated with the water injection groove. A transverse pipe is arranged on the back of the upper die. The two U-shaped pipes are respectively movably installed inside the two ends of the transverse pipe. A connecting frame is installed between the transverse pipe and the C-shaped pipe. A second liquid inlet pipe is installed in the middle of the transverse pipe. A water inlet hydraulic system is arranged between the first liquid inlet pipe and the second liquid inlet pipe.

[0013] Preferably, the upper die is bolted to the top of the forming die mechanism. A water storage cavity is opened inside the base. A top groove is opened at the top end of the water storage cavity, and the top groove is communicated with the branch pipe forming cavity. A drain pipe is installed on one side of the base, and a switch valve is installed on the drain pipe. A top frame is installed at the top end of the base, and a cylinder is installed on the top frame. The output end of the cylinder is fixedly connected to the top wall of the lower die.

[0014] Preferably, the water inlet hydraulic system includes two connecting hoses respectively connected to the first liquid inlet pipe and the second liquid inlet pipe. Water pumps are installed on both connecting hoses. A connecting branch hose is installed on the connecting hose connected to the first liquid inlet pipe, and an overflow valve is installed on the connecting branch hose. One end of the connecting branch hose is connected to a water storage tank. The other ends of the two connecting hoses are connected to a flow direction control mechanism.

[0015] Preferably, the flow direction control mechanism includes a valve box. A first connecting pipe and a second connecting pipe are installed on the front of the valve box, and a first fixed pipe and a second fixed pipe are installed on the back of the valve box. Among them, the first connecting pipe and the first fixed pipe are in the same longitudinal plane, the second connecting pipe and the second fixed pipe are in the same longitudinal plane, the first connecting pipe and the second fixed pipe are in the same horizontal plane, the second connecting pipe and the first fixed pipe are in the same horizontal plane. One end of the first fixed pipe is connected to a cold water tank, one end of the second fixed pipe is connected to a hot water tank, one end of the first connecting pipe is connected to the end of a connecting hose connected to a first liquid inlet pipe, and one end of the second connecting pipe is connected to the end of a connecting hose connected to a second liquid inlet pipe.

[0016] Preferably, a valve block is movably installed inside the valve box. The valve block includes a first communicating block and a second communicating block that are horizontally welded and connected. A sealing gasket is installed on the outer wall of the valve block, and the sealing gasket is closely attached to the inner wall of the valve box. A sliding plate is installed at the top of the valve block, a sliding frame is installed at the top of the valve box, the sliding plate is slidably connected to the sliding frame, a screw rod is rotatably installed inside the sliding frame, the screw rod is threadedly connected to the sliding plate, and one end of the screw rod is fixedly connected to the output shaft of a driving motor. The driving motor is fixedly installed on the sliding frame.

[0017] Preferably, a first longitudinal inclined through groove and a second longitudinal inclined through groove are formed inside the first communicating block. The first longitudinal inclined through groove is used to connect the first connecting pipe and the first fixed pipe, and the second longitudinal inclined through groove is used to connect the second connecting pipe and the second fixed pipe.

[0018] Preferably, a first horizontal inclined through groove and a second horizontal inclined through groove are formed inside the second communicating block. The first horizontal inclined through groove is used to connect the second connecting pipe and the first fixed pipe, and the second horizontal inclined through groove is used to connect the first connecting pipe and the second fixed pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1) During operation, a limiting cavity is formed inside the lower mold and the upper mold through the settings, and a branch pipe forming cavity is arranged at the bottom of the limiting cavity. The tubular blank is heated to a state where it can be softened and shaped. Pressure is generated on the tubular blank through the push heads at both ends, causing the tubular blank to deform and bulge into the branch pipe forming cavity to generate a branch pipe. And by injecting water into the tubular blank, it is ensured that the tubular blank will not deform inward after being pressed, thereby completing the overall forming of the tee, reducing the product cost, and improving the quality of the formed product;

[0021] 2) During operation, cold water is introduced into the hydraulic tank through the setting, generating water pressure to push two push heads towards the inside of the limiting cavity, centering the tubular blank, and achieving the purpose of promoting compensation for deformation and thinning during the forming process, ensuring the quality of the product after forming. At the water injection groove, hot water is introduced into the tubular blank to ensure the forming of the branch pipe, avoiding cold hardening of the product blank caused by low water temperature, which may further lead to the inability of the product blank to continue deforming and affect the production of the tee joint;

[0022] 3) During operation, when the first connecting block set is in the connecting position within the valve box, cold water is introduced into the hydraulic tank while hot water is introduced into the limiting cavity, facilitating the forming of the tee joint. After forming, the second connecting block is moved to the connecting position within the valve box, enabling hot water to enter the hydraulic tank and cold water to flow into the formed tee joint, facilitating the cooling and hardening forming of the tee joint and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0024] In the drawings:

[0025] Figure 1 is a schematic structural diagram of an integral forming device for an aluminum alloy tee joint of the present invention;

[0026] Figure 2 is an exploded structural diagram of the forming die mechanism of the present invention;

[0027] Figure 3 is a schematic structural diagram of the pressure forming part of the present invention;

[0028] Figure 4 is a schematic structural diagram of the push head of the present invention;

[0029] Figure 5 is a schematic structural diagram of the back of the forming die mechanism of the present invention;

[0030] Figure 6 is a schematic installation position diagram of the forming die mechanism of the present invention;

[0031] Figure 7 is a schematic structural diagram of the base of the present invention;

[0032] Figure 8 is a schematic connection system diagram of the forming die mechanism and the flow direction control mechanism of the present invention;

[0033] Figure 9 is a schematic external structure diagram of the valve box of the present invention;

[0034] Figure 10 is a schematic internal structure diagram of the valve box of the present invention;

[0035] Figure 11 Schematic diagram of the first connection block structure of the present invention;

[0036] Figure 12 Schematic diagram of the second connection block structure of the present invention.

[0037] In the figure: 1. Molding die mechanism; 101. Lower die; 102. Upper die; 103. Limiting cavity; 104. Branch pipe forming cavity; 105. Positioning block; 106. Positioning groove; 107. Pushing head; 108. Pressing and forming part; 1081. Hydraulic tank; 1082. Piston plate; 1083. Connecting rod; 1084. First spring; 1085. C-shaped pipe; 1086. First liquid inlet pipe; 109. Water inlet support part; 1091. Water injection tank; 1092. U-shaped pipe; 1093. Horizontal pipe; 1094. Second liquid inlet pipe; 1095. Connecting frame; 2. Base; 3. Top frame; 4. Cylinder; 5. Water storage cavity; 6. Top tank; 7. Drain pipe; 8. Flow direction control mechanism; 801. Valve box; 802. First connecting pipe; 803. Second connecting pipe; 804. First fixing pipe; 805. Second fixing pipe; 806. Valve block; 807. First connection block; 8071. First longitudinal inclined through groove; 8072. Second longitudinal inclined through groove; 808. Second connection block; 8081. First horizontal inclined through groove; 8082. Second horizontal inclined through groove; 809. Sliding frame; 810. Sliding plate; 811. Screw; 812. Driving motor; 9. Connecting hose; 10. Water pump; 11. Connecting branch hose; 12. Relief valve; 13. Water storage tank; 14. Cold water tank; 15. Hot water tank. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] The present invention relates to an integral forming process for aluminum alloy tees, and the forming steps are as follows:

[0040] S1. Blank treatment: Cut the product blank and perform annealing treatment on the blank at a temperature of 360 °C;

[0041] S2. Die use: Move the upper die 102 upward to open, place the product blank in the lower die 101, and then move the upper die 102 downward to make the product blank enter the limiting cavity 103;

[0042] S3. Pressurized production: The pusher heads 107 on both sides move towards the limiting cavity 103, exerting pressure on both ends of the blank, causing the middle part to bulge towards the branch pipe forming cavity 104 to form a branch pipe. During this process, hot water is introduced into the blank to generate an outward supporting force on the inner wall of the blank;

[0043] S4. Cooling and forming: Cold water is introduced into the blank for cooling;

[0044] S5. Blanking and collection: The upper die 102 is opened upward to take out and blank the formed tee.

[0045] Given by Figures 1-12 There is provided an integral forming device for an aluminum alloy tee, including a forming die mechanism 1. The forming die mechanism 1 includes a lower die 101 below and an upper die 102 above. When the lower die 101 contacts the upper die 102, the inner cavities of the two combine to form a limiting cavity 103. A branch pipe forming cavity 104 is opened on the inner bottom wall of the lower die 101, and the branch pipe forming cavity 104 penetrates to the bottom of the lower die 101. Pusher heads 107 are symmetrically arranged on both sides of the upper die 102. The two pusher heads 107 can enter the limiting cavity 103 to push and compensate the product blank placed in the limiting cavity 103. A pressurized forming member 108 is arranged between the upper die 102 and the pusher heads 107, and a water inlet support member 109 is arranged between the two pusher heads 107. Positioning grooves 106 are opened at the four corners of the top end of the lower die 101, and positioning blocks 105 are installed at the four corners of the bottom end of the upper die 102. A limiting cavity 103 is formed inside the lower die 101 and the upper die 102, and a branch pipe forming cavity 104 is arranged at the bottom of the limiting cavity 103. The tubular blank is heated to a state where it can be softened and shaped. Pressure is exerted on the tubular blank through the pusher heads 107 at both ends, causing the tubular blank to deform and bulge into the branch pipe forming cavity 104 to generate a branch pipe. By injecting water into the tubular blank, it is ensured that the tubular blank will not deform inward after being pressurized, thereby completing the integral forming of the tee, reducing the product cost, and improving the quality of the formed product.

[0046] The pressure - formed part 108 includes a hydraulic tank 1081 fixedly installed at the top end of the upper die 102. Inside the hydraulic tank 1081, two piston plates 1082 are symmetrically and movably installed. On the side of each of the two piston plates 1082 facing away from each other, a connecting rod 1083 is installed. The two connecting rods 1083 are respectively fixedly connected to the two push heads 107. Between the two piston plates 1082, two first springs 1084 are symmetrically installed. On the back of the hydraulic tank 1081, a C - shaped pipe 1085 is installed. The two ends of the C - shaped pipe 1085 are respectively in spatial communication with the space on the side of the hydraulic tank 1081 where the two piston plates 1082 face away from each other. In the middle of the C - shaped pipe 1085, a first liquid inlet pipe 1086 is installed. Cold water is introduced into the hydraulic tank 1081. After generating water pressure, it pushes the two push heads 107 to move towards the inside of the limiting cavity 103, center the tubular blank, and achieve the purpose of advancing compensation for deformation and thinning during the forming process, ensuring the quality of the product after forming.

[0047] The water - inlet support part 109 includes a water - injection groove 1091 opened inside the push head 107. At one end of the push head 107 away from the upper die 102, a U - shaped pipe 1092 is installed. The U - shaped pipe 1092 is connected to the water - injection groove 1091. On the back of the upper die 102, a transverse pipe 1093 is provided. The two U - shaped pipes 1092 are respectively movably installed inside the two ends of the transverse pipe 1093. A connecting frame 1095 is installed between the transverse pipe 1093 and the C - shaped pipe 1085. In the middle of the transverse pipe 1093, a second liquid inlet pipe 1094 is installed. An inlet hydraulic system is provided between the first liquid inlet pipe 1086 and the second liquid inlet pipe 1094. Hot water is introduced into the tubular blank through the water - injection groove 1091 to ensure the forming of the branch pipe, avoid the cold hardening of the product blank caused by low water temperature, and further avoid the inability of the product blank to continue deforming, which affects the production of the tee.

[0048] The upper die 102 is bolt - installed on the top of the forming die mechanism 1. Inside the base 2, a water storage cavity 5 is opened. At the top of the water storage cavity 5, a top groove 6 is opened. The top groove 6 is connected to the branch - pipe forming cavity 104. On one side of the base 2, a drain pipe 7 is installed. A switch valve is installed on the drain pipe 7. On the top of the base 2, a top frame 3 is installed. On the top frame 3, a cylinder 4 is installed. The output end of the cylinder 4 is fixedly connected to the top wall of the lower die 101.

[0049] The inlet hydraulic system includes two connecting hoses 9 respectively connected to the first liquid inlet pipe 1086 and the second liquid inlet pipe 1094. Water pumps 10 are installed on both connecting hoses 9. On the connecting hose 9 connected to the first liquid inlet pipe 1086, a connecting branch hose 11 is installed. A relief valve 12 is installed on the connecting branch hose 11. One end of the connecting branch hose 11 is connected to a water storage tank 13. The other ends of the two connecting hoses 9 are connected to a flow - direction control mechanism 8.

[0050] The flow control mechanism 8 includes a valve box 801. A first connecting pipe 802 and a second connecting pipe 803 are installed on the front of the valve box 801, and a first fixed pipe 804 and a second fixed pipe 805 are installed on the back of the valve box 801. Among them, the first connecting pipe 802 and the first fixed pipe 804 are in the same longitudinal plane, the second connecting pipe 803 and the second fixed pipe 805 are in the same longitudinal plane, the first connecting pipe 802 and the second fixed pipe 805 are in the same horizontal plane, and the second connecting pipe 803 and the first fixed pipe 804 are in the same horizontal plane. One end of the first fixed pipe 804 is connected to a cold water tank 14, one end of the second fixed pipe 805 is connected to a hot water tank 15, one end of the first connecting pipe 802 is connected to the end of a connecting hose 9 connected to a first liquid inlet pipe 1086, and one end of the second connecting pipe 803 is connected to the end of a connecting hose 9 connected to a second liquid inlet pipe 1094. A valve block 806 is movably installed inside the valve box 801. The valve block 806 includes a first communication block 807 and a second communication block 808 connected by transverse welding. A sealing gasket is installed on the outer wall of the valve block 806, and the sealing gasket is in close contact with the inner wall of the valve box 801. A sliding plate 810 is installed at the top of the valve block 806, a sliding frame 809 is installed at the top of the valve box 801, and the sliding plate 810 is slidably connected to the sliding frame 809. A screw rod 811 is rotatably installed inside the sliding frame 809, the screw rod 811 is threadedly connected to the sliding plate 810, one end of the screw rod 811 is fixedly connected to the output shaft of a driving motor 812, and the driving motor 812 is fixedly installed on the sliding frame 809. A first longitudinal inclined through groove 8071 and a second longitudinal inclined through groove 8072 are formed inside the first communication block 807. The first longitudinal inclined through groove 8071 is used to connect the first connecting pipe 802 and the first fixed pipe 804, and the second longitudinal inclined through groove 8072 is used to connect the second connecting pipe 803 and the second fixed pipe 805. A first horizontal inclined through groove 8081 and a second horizontal inclined through groove 8082 are formed inside the second communication block 808. The first horizontal inclined through groove 8081 is used to connect the second connecting pipe 803 and the first fixed pipe 804, and the second horizontal inclined through groove 8082 is used to connect the first connecting pipe 802 and the second fixed pipe 805. When the first communication block 807 is in the communication position inside the valve box 801, cold water is introduced into the hydraulic tank 1081 and hot water is introduced into the limiting cavity 103, which is convenient for three-way forming. After the forming is completed, the second communication block 808 is moved to the communication position inside the valve box 801, so that the hot water enters the hydraulic tank 1081, and the cold water flows into the formed three-way, which is convenient for cooling and hardening the three-way to improve the processing efficiency.

[0051] Working principle: During operation, first, the product blank is fed, and the product blank is subjected to annealing heat treatment at a temperature of 360 °C. Among them, the product blank is as Figure 2It is shown as tubular and can be placed inside the limiting cavity 103. After the product blank is processed, it is placed into the inner cavity of the lower mold 101, and then the lower mold 101 is driven to move downward by the cylinder 4, so that the positioning block 105 is inserted into the positioning groove 106. The lower mold 101 is in close contact with the upper mold 102 to form the limiting cavity 103, and the product blank enters the limiting cavity 103.

[0052] At this time, the first communication block 807 is in the communication position inside the valve box 801, so that the first longitudinal inclined through groove 8071 connects the first connecting pipe 802 and the first fixed pipe 804, and the second longitudinal inclined through groove 8072 connects the second connecting pipe 803 and the second fixed pipe 805. At this time, the water pump 10 on the connecting hose 9 connected to the first liquid inlet pipe 1086 is turned on, driving the cold water in the cold water tank 14 to enter the space inside the valve box 801 on the side where the two piston plates 1082 are away from each other through the connecting hose 9, the first liquid inlet pipe 1086, and the C-shaped pipe 1085 respectively. Thus, a thrust force that makes the two piston plates 1082 approach each other is generated, and then the two push heads 107 are pushed into the limiting cavity 103 simultaneously from both ends of the limiting cavity 103 to apply pressure to both ends of the product blank, facilitating the centering placement of the product blank inside the limiting cavity 103 for subsequent pressure compensation. After applying pressure to both ends of the product blank, the corresponding positions of the product blank and the branch pipe forming cavity 104 bulge out towards the inside of the branch pipe forming cavity 104, thereby forming a branch pipe. After the water pump 10 drives the cold water in the cold water tank 14 to circulate, a part flows towards the first liquid inlet pipe 1086, and the other part flows into the water storage tank 13 through the connecting branch hose 11. When the push head 107 needs to increase pressure, the opening degree of the overflow valve 12 is adjusted to reduce the amount of cold water flowing into the water storage tank 13, thereby increasing the water pressure on one side of the piston plate 1082 and adjusting the pressure of the push head 107.

[0053] At the same time, the water pump 10 on the connecting hose 9 connected to the second liquid inlet pipe 1094 is turned on, driving the hot water in the hot water tank 15 to be introduced into the product blank through the connecting hose 9, the second liquid inlet pipe 1094, the U-shaped pipe 1092 from the water injection groove 1091 on the push head 107. After the hot water enters the product blank, an outward supporting force is generated on the inner wall of the product blank, thereby preventing the product blank from deforming inward under pressure. The hot water is discharged into the water storage cavity 5 through the generated branch pipe and the top groove 6 for storage. The hot water in the hot water tank 15 is used for the branch pipe bulging of the product blank to avoid cold hardening of the product blank due to low water temperature, which may cause the product blank to be unable to continue deforming and affect the production of the tee. During the production process, the push head 107 is continuously pushed inward under pressure, thereby achieving the purpose of compensating for deformation and thinning and ensuring the quality of the product after forming.

[0054] After the tee is formed, the driving motor 812 is turned on to rotate the screw 811. Since the screw 811 is threadedly connected to the sliding plate 810, the valve block 806 is driven to move horizontally inside the valve box 801, so that the second communication block 808 moves to the communication position inside the valve box 801, enabling the second connecting pipe 803 to be connected to the first fixed pipe 804 and the first connecting pipe 802 to be connected to the second fixed pipe 805. At this time, the hot water enters the hydraulic tank 1081, and the cold water is introduced into the limiting cavity 103. The cold water can quickly cool the produced tee, facilitating the cooling and shaping of the tee, avoiding other deformations caused by too slow cooling speed, and improving the processing efficiency.

[0055] After the cooling is completed, the two water pumps 10 are turned off, and the upper mold 102 is driven to move upward by the cylinder 4 to open, and then the produced tee is taken out for blanking.

[0056] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integral forming process for an aluminum alloy tee, characterized in that The molding steps are as follows: S1. Billet processing: blanking of product billets, and annealing heat treatment of the billets at 360°C; S2. Use of the mold: the upper mold (102) is moved upward and opened, and the product blank is placed in the lower mold (101), and then the upper mold (102) is moved back downward to allow the product blank to enter the limiting cavity (103); S3, pressurized production: the push heads (107) on both sides move toward the limiting cavity (103), generating pressure on both ends of the blank, so that the middle part swells toward the branch tube forming cavity (104) to form a branch tube. During this process, hot water is introduced into the blank to generate an outward supporting force on the inner wall of the blank; S4, cooling and forming: passing cold water into the blank for cooling; S5, material collection: the upper mold (102) is opened upwards, and the formed tee is taken out for material collection.

2. An integral forming device for an aluminum alloy tee, comprising a forming die mechanism (1), characterized in that, It comprises a lower mold (101) and an upper mold (102); The limiting cavity (103) is formed by the combination of the inner cavities of the lower mold (101) and the upper mold (102) when the two are in contact; A branch tube forming cavity (104) is formed on the inner bottom wall of the lower mold (101); A pusher head (107) is symmetrically arranged on both sides of the upper mold (102) and is used to enter the limiting cavity (103) to push and compensate the product blank placed in the limiting cavity (103); A press-molded part (108) is disposed between the upper mold (102) and the pusher head (107); The water inlet support member (109) is arranged between the two pusher heads (107).

3. An integral forming device for an aluminum alloy tee according to claim 2, characterized in that: The press-formed part (108) comprises: A hydraulic box (1081) is fixedly mounted on the top of the upper mold (102); Two piston plates (1082) are symmetrically and movably mounted inside the hydraulic box (1081); A connecting rod (1083) is symmetrically mounted on the two piston plates (1082) at a side away from each other, and the connecting rod (1083) is fixedly connected to the push head (107); A C-shaped tube (1085) is installed on the back of the hydraulic box (1081), and both ends of the C-shaped tube (1085) are respectively connected to the space of the hydraulic box (1081) located on one side away from the two piston plates (1082); The first liquid inlet pipe (1086) is installed in the middle of the C-shaped pipe (1085).

4. An integral forming device for an aluminum alloy tee according to claim 2, characterized in that: The water inlet support member (109) comprises: A water injection tank (1091) is provided inside the pusher head (107); A U-shaped tube (1092) is mounted on an end of the pusher head (107) away from the upper mold (102); A transverse tube (1093) is disposed on the back side of the upper mold (102); A second liquid inlet pipe (1094) installed in the middle of the transverse pipe (1093); The water inlet hydraulic system is arranged between the first liquid inlet pipe (1086) and the second liquid inlet pipe (1094).

5. An integral forming device for an aluminum alloy tee joint according to claim 4, characterized in that: The water inlet hydraulic system comprises: Two connecting hoses (9), respectively connected to the first liquid inlet pipe (1086) and the second liquid inlet pipe (1094); Two water pumps (10) are respectively installed on the two connecting hoses (9); The connecting branch hose (11) is installed on the connecting hose (9) which is connected to the first liquid inlet pipe (1086). An overflow valve (12) is installed on the connecting branch hose (11), and one end of the connecting branch hose (11) is connected to a water storage tank (13). The flow direction control mechanism (8) is connected to the other ends of the two connecting hoses (9).

6. The integral forming device for an aluminum alloy tee according to claim 5, characterized in that: The flow direction control mechanism (8) includes a valve box (801). The first connecting pipe (802) and the second connecting pipe (803) are both installed on the front of the valve box (801). The first fixing pipe (804) and the second fixing pipe (805) are both installed on the back of the valve box (801). The cold water tank (14) is connected to one end of the first fixing pipe (804). The hot water tank (15) is connected to one end of the second fixing pipe (805). One end of the first connecting pipe (802) is connected to the end of the connecting hose (9) connected to the first liquid inlet pipe (1086), and one end of the second connecting pipe (803) is connected to the end of the connecting hose (9) connected to the second liquid inlet pipe (1094).

7. An integral forming device for an aluminum alloy tee joint according to claim 6, characterized in that: The flow direction control mechanism (8) further includes: A valve block (806) is movably installed inside the valve box (801). The valve block (806) includes a first communicating block (807) and a second communicating block (808) which are welded horizontally. A sliding plate (810), and a lateral movement driving member is installed at the top of the valve block (806).

8. An integral forming device for an aluminum alloy tee joint according to claim 7, characterized in that: The first communicating block (807) includes the body of the first communicating block (807). The first longitudinal inclined through groove (8071) and the second longitudinal inclined through groove (8072) are opened inside the body of the first communicating block (807). The first longitudinal inclined through groove (8071) is used to connect the first connecting pipe (802) with the first fixing pipe (804), and the second longitudinal inclined through groove (8072) is used to connect the second connecting pipe (803) with the second fixing pipe (805).

9. An integral forming device for an aluminum alloy three-way joint according to claim 7, characterized in that: The second communicating block (808) includes the body of the second communicating block (808). The first horizontal inclined through groove (8081) and the second horizontal inclined through groove (8082) are opened inside the body of the second communicating block (808). The first horizontal inclined through groove (8081) is used to connect the second connecting pipe (803) with the first fixing pipe (804), and the second horizontal inclined through groove (8082) is used to connect the first connecting pipe (802) with the second fixing pipe (805).

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