Forming tool for pre-bending internal high-pressure die

Abstract

The utility model discloses a forming tool for pre-bending an internal high-pressure die, which comprises an upper base and a lower base, and a lower die is arranged on the upper surface of the upper base. According to the forming tool for pre-bending the internal high-pressure mold, through the arrangement of the upper base, the lower mold, the water storage tank, a groove and a top block, when the forming tool is used, a pipe conforming to the diameter of the top block is prepared, and when a second hydraulic rod operates, a clamping plate can be driven to slide in a cavity, and the pipe is clamped and fixed through the clamping plate and the top block; the two sliding blocks slide in the grooves at the same time to drive the fixed pipe to move to the upper portion of the water storage tank, a heating plate in the water storage tank heats a water source in the water storage tank, and at the moment, a first hydraulic rod operates to drive a supporting base and a clamping plate to move so that the pipe can be put into the heated water in the water storage tank to be preheated; it can be guaranteed that the metal material reaches a certain softening state before entering the upper die and the lower die, forming is easy, and the defect that a pipe is damaged due to direct forming is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of internal high pressure molding, in particular to a molding tool used for pre-bending of an internal high pressure mold. Background Art

[0002] The internal high pressure forming process is also called the hydraulic bulging forming process. Its basic principle is to use an external booster to generate high-pressure liquid. The high-pressure liquid causes the metal billet to deform into a part with a complex three-dimensional shape. According to the geometric shape of the processed billet, the internal high pressure forming technology can be divided into three types: sheet metal hydraulic forming, shell hydraulic forming and pipe hydraulic forming. Among them, pipe hydraulic bulging is to expand the pipe according to the shape of the mold cavity through the combined action of the internal liquid pressure and axial force of the pipe. The axial force provides the function of feeding. The liquid that transmits the internal high pressure is usually hydraulic oil or water.

[0003] When hydraulic forming the pipe, the upper and lower molds need to be closed to perform preliminary press bending of the pipe, and then hydraulic oil or water is pressurized and injected into the pipe to achieve the forming purpose. If the pipe is directly press bent by closing the upper and lower molds without preheating the pipe, it may cause cracks in the pipe during the bending process. Proper preheating of the pipe can make the pipe reach a certain softening state before entering the upper and lower molds to facilitate pipe processing. After the pipe is injected with hydraulic oil or water, the water inside the pipe will flow out at the end of the work and is difficult to recycle, which may lead to waste of resources. Therefore, it is necessary to design a forming tool for internal high-pressure mold pre-bending. Utility Model Content

[0004] The main purpose of the utility model is to provide a forming tool for pre-bending an internal high-pressure mold, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The cam is provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of camshafts, the cam being provided with a plurality of

[0007] In order to drive the slider to move, as a forming tool for pre-bending an internal high-pressure mold of the utility model, the inner wall of the groove is rotatably connected with a screw rod, and the screw rod is threadedly connected to the slider.

[0008] In order to drive the screw to rotate, as a forming tool for pre-bending an internal high-pressure mold in the utility model, a motor is installed on the back of the upper base, and the output end of the motor is fixedly connected to the screw.

[0009] In order to transport the water source, as a forming tool for pre-bending the internal high-pressure mold in the utility model, a booster pump is installed on the upper surface of the support seat, a suction pipe is provided at the input end of the booster pump, and an output pipe is fixedly connected to the output end of the booster pump.

[0010] In order to inject water and increase the pressure inside the pipeline, as a forming tool for pre-bending the internal high-pressure mold of the utility model, the inner wall of the clamping plate is provided with a conveying groove, one end of the conveying groove passes through the top block and is connected to the top block.

[0011] In order to transport the water source, as a forming tool for pre-bending an internal high-pressure mold of the utility model, one end of the output pipe is fixedly connected to the card plate and communicated with the conveying groove.

[0012] In order to allow the water source to fall into the lower base for storage, as a forming tool for pre-bending an internal high-pressure mold in the utility model, a leakage groove is opened on the upper surface of the upper base.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, through the arrangement of the upper base, the lower mold, the water tank, the groove and the top block, when in use, a pipe that meets the diameter of the top block is prepared, and when the second hydraulic rod is in operation, it can drive the clamping plate to slide inside the cavity and clamp the pipe through the clamping plate and the top block, and the two sliders slide in the groove at the same time to drive the fixed pipe to move to the upper part of the water tank, and the heating plate in the water tank heats the internal water source. At this time, the first hydraulic rod is operated to drive the movement of the support seat and the clamping plate to put the pipe into the water in the heated water tank to preheat the pipe, which can ensure that the metal material has reached a certain softening state before entering the upper mold and the lower mold, which is easy to form and prevents the disadvantage of damage to the pipe caused by direct bending.

[0015] 2. In the utility model, through the arrangement of the first hydraulic rod, the support seat, the card plate, the booster pump, the suction pipe, the output pipe and the leakage groove, the workpiece after preheating moves the support seat and the card plate and the clamped pipe to the position of the lower mold through the movement of the slider, the upper mold is pressed downward so that the upper mold and the lower mold are closed to bend the pipe, at this time, the second hydraulic rod continuously applies pressure to the card plate so that the card plate always contacts the two ends of the pipe, at this time, the booster pump sucks the water source of the lower base through the suction pipe and pressurizes the water source through the output pipe, the conveying groove and the top block to input the water source into the pipe for high-pressure forming, thereby achieving a completely formed profile, at the end, the water source in the pipe flows out through the leakage groove and flows back to the lower base, and then is stored by the lower base to achieve the reuse of the water source and reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the water storage tank structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the output tube structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the second hydraulic rod of the utility model;

[0020] Figure 5 This is a schematic diagram of the conveying trough structure of the utility model.

[0021] In the figure: 1. upper base; 2. lower base; 3. lower mold; 4. mounting seat; 5. hydraulic cylinder; 6. upper mold; 7. water storage tank; 8. heating plate; 9. groove; 10. slider; 11. first hydraulic rod; 12. support seat; 13. cavity; 14. second hydraulic rod; 15. clamping plate; 16. top block; 17. screw; 18. motor; 19. booster pump; 20. suction pipe; 21. output pipe; 22. conveying trough; 23. drain trough. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-5 As shown, a forming tool for internal high-pressure die pre-bending comprises an upper base 1 and a lower base 2, a lower die 3 is arranged on the upper surface of the upper base 1, a mounting seat 4 is fixedly connected to the upper surface of the upper base 1, a hydraulic cylinder 5 is installed on the upper surface of the mounting seat 4, a piston rod is fixedly connected to the output end of the hydraulic cylinder 5, one end of the piston rod passes through the upper surface of the mounting seat 4 and extends to the lower surface of the mounting seat 4, one end of the piston rod is fixedly connected to the upper die 6, a water storage tank 7 is fixedly connected to the upper surface of the upper base 1, and a heating plate 8 is arranged on the inner bottom wall of the water storage tank 7;

[0024] In this embodiment, a groove 9 is provided on the upper surface of the upper base 1, and a slider 10 is slidably connected to the inner wall of the groove 9. There are two grooves 9. A first hydraulic rod 11 is installed on the upper surface of the slider 10. A support seat 12 is fixedly connected to the upper surface of the first hydraulic rod 11. A cavity 13 is provided on the inner wall of the support seat 12. A second hydraulic rod 14 is fixedly connected to the inner wall of the cavity 13. A clamping plate 15 is fixedly connected to the output end of the second hydraulic rod 14, and a top block 16 is fixedly connected to the inner surface of the clamping plate 15.

[0025] During specific use, prepare pipes that meet the diameter of the top block 16. When the second hydraulic rod 14 is in operation, it can drive the clamping plate 15 to slide inside the cavity 13 and clamp the pipe through the clamping plate 15 and the top block 16. The two sliders 10 slide simultaneously in the groove 9 to drive the fixed pipe to move to the upper part of the water tank 7. The heating plate 8 in the water tank 7 heats the internal water source. At this time, the first hydraulic rod 11 drives the support seat 12 and the clamping plate 15 to move and put the pipe into the water in the heated water tank 7 to preheat the pipe, which can ensure that the metal material has reached a certain softening state before entering the upper mold 6 and the lower mold 3. The hydraulic cylinder 5 runs its piston rod to drive the upper mold 6 to press down and overlap with the lower mold 3 to press down and bend the pipe.

[0026] In this embodiment, a screw rod 17 is rotatably connected to the inner wall of the groove 9 , and the screw rod 17 is threadedly connected to the slider 10 .

[0027] During specific use, when the screw rod 17 rotates, it can perform threaded motion with the slider 10 , thereby driving the slider 10 to slide on the inner wall of the groove 9 .

[0028] In this embodiment, a motor 18 is installed on the back of the upper base 1 , and the output end of the motor 18 is fixedly connected to the screw rod 17 .

[0029] During specific use, when the motor 18 is running, its output end can drive the screw 17 to rotate, so that the screw 17 can perform threaded motion with the slider 10.

[0030] In this embodiment, a booster pump 19 is installed on the upper surface of the support seat 12 , a suction pipe 20 is provided at the input end of the booster pump 19 , and an output pipe 21 is fixedly connected to the output end of the booster pump 19 .

[0031] During specific use, when the booster pump 19 is in operation, the water source in the lower base 2 can be extracted through the suction pipe 20 and transported through the output pipe 21 .

[0032] In this embodiment, a conveying groove 22 is provided on the inner wall of the clamping plate 15 , and one end of the conveying groove 22 passes through the top block 16 and is in communication with the top block 16 .

[0033] When in use, the output pipe 21 delivers water to the delivery trough 22 , and the water in the delivery trough 22 can be injected into the press-bent pipe through the top block 16 for high-pressure forming.

[0034] In this embodiment, one end of the output pipe 21 is fixedly connected to the clamping plate 15 and communicated with the conveying groove 22 .

[0035] During specific use, the output pipe 21 and the delivery trough 22 are connected to each other so that the water source in the output pipe 21 can be delivered to the inside of the delivery trough 22 .

[0036] In this embodiment, a drain groove 23 is formed on the upper surface of the upper base 1 .

[0037] During specific use, after the processing is completed, the water in the pipe overflows and flows back to the lower base 2 through the leakage groove 23 to be stored in order to be recycled.

[0038] Working principle: During use, prepare a pipe that meets the diameter of the top block 16. When the second hydraulic rod 14 is in operation, it can drive the clamping plate 15 to slide inside the cavity 13 and clamp the pipe through the clamping plate 15 and the top block 16. At this time, the top block 16 is on the inner wall of the pipe and the clamping plate 15 is in contact with both ends of the pipe. When the motor 18 is in operation, its output end can drive the rotation of the screw 17, so that the screw 17 can perform threaded motion with the slider 10 to drive the movement of the slider 10. The two sliders 10 slide in the groove 9 at the same time to drive the fixed pipe to move to the upper part of the water tank 7. The heating plate 8 in the water tank 7 heats the internal water source. At this time, the first hydraulic rod 11 operates to drive the support seat 12 and the clamping plate 15 to move and put the pipe into the heated water tank 7. Preheating the pipe in the inner water can ensure that the metal material has reached a certain softening state before entering the upper mold 6 and the lower mold 3. The hydraulic cylinder 5 runs its piston rod to drive the upper mold 6 to press down and overlap with the lower mold 3 to press and bend the pipe. At this time, the second hydraulic rod 14 continues to apply pressure to the clamping plate 15 so that the clamping plate 15 always contacts the two ends of the pipe. At this time, the booster pump 19 sucks the water source of the lower base 2 through the suction pipe 20 and pressurizes the water source through the output pipe 21, the conveying trough 22 and the top block 16 to input the water source into the pipe for high-pressure forming, thereby achieving a completely formed profile. At the end, the water source in the pipe flows out through the leakage groove 23 and flows back to the lower base 2, and then is stored by the lower base 2 to achieve the reuse of the water source and reduce resource waste.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A forming tool for internal high-pressure die pre-bending, comprising an upper base (1) and a lower base (2), characterized in that: The upper surface of the upper base (1) is provided with a lower mold (3), the upper surface of the upper base (1) is fixedly connected to a mounting seat (4), the upper surface of the mounting seat (4) is provided with a hydraulic cylinder (5), the output end of the hydraulic cylinder (5) is fixedly connected to a piston rod, one end of the piston rod passes through the upper surface of the mounting seat (4) and extends to the lower surface of the mounting seat (4), one end of the piston rod is fixedly connected to an upper mold (6), the upper surface of the upper base (1) is fixedly connected to a water storage tank (7), and the inner bottom wall of the water storage tank (7) is provided with a heating plate (8); The upper surface of the upper base (1) is provided with a groove (9), the inner wall of the groove (9) is slidably connected to a slider (10), the number of the grooves (9) is two, the upper surface of the slider (10) is mounted with a first hydraulic rod (11), the upper surface of the first hydraulic rod (11) is fixedly connected to a support seat (12), the inner wall of the support seat (12) is provided with a cavity (13), the inner wall of the cavity (13) is fixedly connected to a second hydraulic rod (14), the output end of the second hydraulic rod (14) is fixedly connected to a clamping plate (15), the inner surface of the clamping plate (15) is fixedly connected to a top block (16).

2. A forming tool for internal high pressure die pre-bending according to claim 1, characterized in that: The inner wall of the groove (9) is rotatably connected with a screw rod (17), and the screw rod (17) is threadedly connected to the slider (10).

3. The forming tool for internal high pressure die pre-bending according to claim 1, characterized in that: A motor (18) is installed on the back of the upper base (1), and the output end of the motor (18) is fixedly connected to the screw rod (17).

4. The forming tool for internal high pressure die pre-bending according to claim 1, characterized in that: A booster pump (19) is installed on the upper surface of the support seat (12); a suction pipe (20) is provided at the input end of the booster pump (19); and an output pipe (21) is fixedly connected to the output end of the booster pump (19).

5. The forming tool for internal high pressure die pre-bending according to claim 1, characterized in that: The inner wall of the clamping plate (15) is provided with a conveying groove (22), and one end of the conveying groove (22) passes through the top block (16) and is in conduction with the top block (16).

6. The forming tool for internal high pressure die pre-bending according to claim 4, characterized in that: One end of the output pipe (21) is fixedly connected to the clamping plate (15) and communicated with the conveying groove (22).

7. The forming tool for internal high pressure die pre-bending according to claim 1, characterized in that: The upper surface of the upper base (1) is provided with a drain groove (23).

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