Internal pressurizing type hydraulic forming machine
The internal booster hydraulic molding machine solves the problems of gaps in edges and corners and difficult demolding in hydraulic molding through graded hydraulic molding and auxiliary demolding design, achieving efficient workpiece molding and convenient demolding effect.
Patent Information
- Application Number
- CN202421818725.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the existing hydraulic forming technology, the liquid flow rate in the corner area of the inner corner of the workpiece is slow, resulting in the edge forming ahead of time, and there are still gaps inside, and it is difficult to demold.
The internal booster hydraulic molding machine is adopted. Through the graded hydraulic molding of the first mold and the second mold, combined with the design of the telescopic rod, hydraulic rod and exhaust valve, the graded molding and convenient mold release of the workpiece is achieved. The booster plate is used to accelerate the liquid flow rate, the exhaust holes reduce bubbles and pressure, and the electric push rod assists in mold release.
It improves the forming quality of the inner corners of the workpiece, simplifies the mold release process, reduces the generation of bubbles, and improves the overall processing quality and convenience of the workpiece.
Smart Images
Figure CN223056503U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydroforming, in particular to an internally pressurized hydroforming machine. Background Technique
[0002] Hydroforming technology has multiple advantages. By using liquid as the force transmission medium, it can effectively reduce the frictional resistance, improve the forming limit of the sheet metal, and thus manufacture parts with high precision and good surface quality.
[0003] In the existing hydroforming technology, when processing workpieces, the liquid flow rate in the internal corner area is slow, resulting in the problem that the edge is formed in advance while there are still vacancies inside. Moreover, after hydroforming, it is difficult to demold the workpiece. Therefore, it is necessary to improve the existing device to meet the actual needs. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the existing technology, the utility model provides an internally pressurized hydroforming machine, which has the effects of realizing hierarchical hydroforming through the first telescopic rod, the second telescopic rod, the first mold, and the second mold. At the same time, it is convenient to separate the first mold and the second mold, thus facilitating demolding. At the same time, the completed workpiece is extruded, improving the demolding convenience. And through the internally pressurized method, the liquid is fully formed in the internal corner area and other advantages, and solves the above technical problems.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: An internally pressurized hydroforming machine includes a base. A first mold is fixedly installed at the top of the base. A first mold cavity is opened inside the first mold. A first telescopic rod is fixedly installed at the top of the base, and a second telescopic rod is fixedly installed on the side of the top away from the first telescopic rod. A second mold is fixedly installed at the top of the second telescopic rod. A second mold cavity is opened at the top of the second mold, and a material injection pipe is fixedly installed on the side. The other end of the material injection pipe is fixedly installed with a control valve, and an exhaust hole is fixedly installed at the top. An exhaust valve is fixedly installed in the middle of the exhaust hole. A bracket is fixedly installed on the top side of the base. A top plate is fixedly installed at the top of the bracket. A hydraulic rod is fixedly installed at the bottom of the top plate. A pressure increasing plate is fixedly installed at the bottom of the hydraulic rod.
[0008] Preferably, multiple groups of the first telescopic rods are arranged oppositely, and the top ends are fixedly connected to the side of the first mold.
[0009] Through the above technical scheme, firstly, the effect of graded hydraulic forming of the tool is achieved through the cooperation between the first mold and the second mold. After the workpiece is hydraulically formed, the first telescopic rod is started, so that the first telescopic rod drives the first mold to be extended and retracted, so that the first mold is separated from the base, thereby facilitating material removal.
[0010] Preferably, two groups of the second telescopic rods are arranged opposite to each other, and the top ends are fixedly connected to the bottom ends of the second molds.
[0011] Through the above technical solution, the second telescopic rod is started, so that the second telescopic rod drives the second mold to separate from the first mold, thereby separating the internal workpiece from the mold, reducing the contact area between the workpiece and the mold groove after hydraulic pressure is completed, thereby facilitating demoulding.
[0012] Preferably, a group of exhaust holes are fixedly installed on the top of the injection pipe.
[0013] Through the above technical solution, when the inside of the mold cavity is pressurized, the exhaust valve is opened so that the heat inside the mold cavity is discharged from the exhaust hole, thereby reducing the generation of bubbles during the workpiece processing, while reducing the internal pressure and improving the quality of the workpiece.
[0014] Preferably, a group of boosting plates are fixedly mounted on the bottom end of the hydraulic rod.
[0015] Through the above technical solution, after the liquid is injected into the mold groove, the hydraulic rod is started, so that the hydraulic rod drives the booster plate to squeeze the inside of the second mold groove, thereby accelerating the flow rate of the liquid inside the mold groove and squeezing the internal air, so that the internal corners are fully formed.
[0016] Preferably, an electric push rod is fixedly installed in the middle of the top of the base, and a push plate is fixedly installed on the top of the electric push rod, and the top of the push plate abuts against the bottom end of the first mold groove.
[0017] Through the above technical solution, after the hydraulic forming is completed, the electric push rod is started, so that the electric push rod drives the push plate to move upward in a straight line, thereby squeezing the workpiece inside the first die groove, so that the workpiece is separated from the first die groove, achieving the effect of facilitating material unloading.
[0018] Compared with the prior art, the utility model provides an internal pressure-boosting hydraulic forming machine, which has the following beneficial effects:
[0019] 1. First, through the cooperation between the first mold and the second mold, the present utility model achieves the effect of hierarchical hydraulic forming of tools. After the workpiece is hydraulically formed, the first telescopic rod is started, so that the first telescopic rod drives the first mold to expand and contract, and then the first mold is separated from the base. The second telescopic rod is started, so that the second telescopic rod drives the second mold to separate from the first mold, thereby separating the internal workpiece from the mold, reducing the contact area between the workpiece and the mold groove after hydraulic forming, and facilitating demoulding.
[0020] 2. When pressurizing the inside of the mold groove, the exhaust valve is opened, so that the heat inside the mold groove is discharged from the device through the exhaust holes, thereby reducing the generation of bubbles during the workpiece processing, and at the same time reducing the internal pressure and improving the quality of the workpiece. After injecting liquid into the mold groove, the hydraulic rod is started, so that the hydraulic rod drives the pressure increasing plate to squeeze the inside of the second mold groove, thereby accelerating the flow rate of the liquid inside the mold groove, squeezing the internal air, and enabling the internal corner parts to be fully formed. After the hydraulic forming is completed, the electric push rod is started, so that the electric push rod drives the pushing plate to perform a linear upward movement, thereby squeezing the workpiece inside the first mold groove, and enabling the workpiece to be separated from the inside of the first mold groove, achieving the effect of facilitating blanking. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a three-dimensional structural schematic diagram of the forming machine of the present utility model;
[0022] Figure 2 is a front view schematic diagram of the forming machine of the present utility model;
[0023] Figure 3 is a three-dimensional disassembled schematic diagram of the forming machine of the present utility model;
[0024] Figure 4 is a partial disassembled schematic diagram of the forming machine of the present utility model.
[0025] Among them: 1. Base; 2. First mold; 3. First mold groove; 4. First telescopic rod; 5. Second telescopic rod; 6. Second mold; 7. Second mold groove; 8. Feeding pipe; 9. Control valve; 10. Exhaust hole; 11. Exhaust valve; 12. Support; 13. Top plate; 14. Hydraulic rod; 15. Pressure increasing plate; 16. Electric push rod; 17. Pushing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] See also Figures 1-4 A kind of internal boost hydraulic molding machine comprises a base 1, a first mold 2 is fixedly installed on the top of the base 1, a first mold groove 3 is opened inside the first mold 2, a first telescopic rod 4 is fixedly installed on the top of the base 1, and a second telescopic rod 5 is fixedly installed on the side of the top away from the first telescopic rod 4, a second mold 6 is fixedly installed on the top of the second telescopic rod 5, a second mold groove 7 is opened on the top of the second mold 6, and an injection pipe 8 is fixedly installed on the side, a control valve 9 is fixedly installed on the other end of the injection pipe 8, and an exhaust hole 10 is fixedly installed on the top, an exhaust valve 11 is fixedly installed on the middle end of the exhaust hole 10, a bracket 12 is fixedly installed on the top side of the base 1, a top plate 13 is fixedly installed on the top of the bracket 12, a hydraulic rod 14 is fixedly installed on the bottom end of the top plate 13, and a booster plate 15 is fixedly installed on the bottom end of the hydraulic rod 14.
[0028] Specifically, a plurality of first telescopic rods 4 are relatively arranged, and the top ends are fixedly connected to the side of the first mold 2. The advantage is that, firstly, through the cooperation between the first mold 2 and the second mold 6, the effect of graded hydraulic forming of the tool is achieved, and after the workpiece is hydraulically formed, the first telescopic rod 4 is started, so that the first telescopic rod 4 drives the first mold 2 to extend and retract, so that the first mold 2 is separated from the base 1, thereby facilitating the material removal.
[0029] Specifically, two sets of second telescopic rods 5 are arranged opposite to each other, and the top ends are fixedly connected to the bottom ends of the second mold 6. The advantage is that when the second telescopic rods 5 are activated, the second mold 6 is driven by the second telescopic rods 5 to separate from the first mold 2, thereby separating the workpiece inside from the mold, reducing the contact area between the workpiece and the mold cavity after the hydraulic pressure is completed, thereby facilitating demoulding.
[0030] Specifically, a group of exhaust holes 10 are fixedly installed on the top of the injection tube 8. The advantage is that when the inside of the mold cavity is pressurized, the exhaust valve 11 is opened so that the heat inside the mold cavity is discharged from the device through the exhaust holes 10, thereby reducing the generation of bubbles during the workpiece processing, while reducing the internal pressure and improving the quality of the workpiece.
[0031] Specifically, a group of boosting plates 15 are fixedly mounted at the bottom of the hydraulic rod 14. The advantage is that after the liquid is injected into the mold cavity, the hydraulic rod 14 is started, so that the hydraulic rod 14 drives the boosting plates 15 to squeeze the inside of the second mold cavity 7, thereby accelerating the flow rate of the liquid inside the mold cavity, squeezing the internal air, and making the internal corners fully formed.
[0032] Specifically, an electric push rod 16 is fixedly installed in the middle of the top end of the base 1, a pushing plate 17 is fixedly installed at the top end of the electric push rod 16, and the top end of the pushing plate 17 abuts against the bottom end inside the first die cavity 3. The advantage is that after the hydraulic forming is completed, the electric push rod 16 is started, so that the electric push rod 16 drives the pushing plate 17 to perform a linear upward movement, thereby extruding the workpiece inside the first die cavity 3, so that the workpiece is separated from the inside of the first die cavity 3, achieving the effect of facilitating material discharging.
[0033] During use, first, through the cooperation between the first die 2 and the second die 6, the effect of hierarchical hydraulic forming of the tool is achieved. When the workpiece is hydraulically formed, the first telescopic rod 4 is started, so that the first telescopic rod 4 drives the first die 2 to expand and contract, and then the first die 2 is separated from the base 1. The second telescopic rod 5 is started, so that the second telescopic rod 5 drives the second die 6 to separate from the first die 2, thereby separating the internal workpiece from the die, reducing the contact area between the workpiece and the die cavity after the hydraulic forming is completed, and thus facilitating demoulding. When pressurizing the inside of the die cavity, the exhaust valve 11 is opened, so that the heat inside the die cavity is discharged from the device through the exhaust holes 10, thereby reducing the generation of bubbles during the workpiece processing, and at the same time reducing the internal pressure and improving the quality of the workpiece. After injecting liquid into the die cavity, the hydraulic rod 14 is started, so that the hydraulic rod 14 drives the pressure increasing plate 15 to extrude the inside of the second die cavity 7, thereby accelerating the flow rate of the liquid inside the die cavity, extruding the internal air, and enabling the internal corner parts to be fully formed. After the hydraulic forming is completed, the electric push rod 16 is started, so that the electric push rod 16 drives the pushing plate 17 to perform a linear upward movement, thereby extruding the workpiece inside the first die cavity 3, so that the workpiece is separated from the inside of the first die cavity 3, achieving the effect of facilitating material discharging.
[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An internally pressurized hydraulic forming machine, comprising a base (1), characterized in that: At the top of the base (1), a first mold (2) is fixedly installed. A first mold cavity (3) is formed inside the first mold (2). At the top of the base (1), a first telescopic rod (4) is fixedly installed, and on the side away from the first telescopic rod (4) at the top, a second telescopic rod (5) is fixedly installed. At the top of the second telescopic rod (5), a second mold (6) is fixedly installed. At the top of the second mold (6), a second mold cavity (7) is formed, and a material injection pipe (8) is fixedly installed on the side. The other end of the material injection pipe (8) is fixedly installed with a control valve (9), and an exhaust hole (10) is fixedly installed on the top. In the middle of the exhaust hole (10), an exhaust valve (11) is fixedly installed. On the top side of the base (1), a bracket (12) is fixedly installed. At the top of the bracket (12), a top plate (13) is fixedly installed. At the bottom of the top plate (13), a hydraulic rod (14) is fixedly installed. At the bottom of the hydraulic rod (14), a pressure increasing plate (15) is fixedly installed.
2. The internal pressure boosting type hydraulic forming machine according to claim 1, wherein: A plurality of groups of the first telescopic rods (4) are arranged oppositely, and the tops are fixedly connected to the side of the first mold (2).
3. The internal pressure boosting type hydraulic molding machine according to claim 1, characterized in that: Two groups of the second telescopic rods (5) are arranged oppositely, and the tops are fixedly connected to the bottom of the second mold (6).
4. The internal pressure boosting type hydraulic forming machine according to claim 1, characterized in that: A group of exhaust holes (10) are fixedly installed at the top of the material injection pipe (8).
5. The internal pressure boosting type hydraulic molding machine according to claim 1, characterized in that: A group of pressure increasing plates (15) are fixedly installed at the bottom of the hydraulic rod (14).
6. The internal pressure boosting type hydraulic molding machine according to claim 1, wherein: In the middle of the top of the base (1), an electric push rod (16) is fixedly installed. At the top of the electric push rod (16), a pushing plate (17) is fixedly installed. The top of the pushing plate (17) abuts against the bottom end inside the first mold cavity (3).