Isostatic pressing forming machine

Abstract

The utility model discloses an isostatic pressing forming machine, which belongs to the field of material forming and processing and comprises a base, a frame is arranged on the base through a fixing seat, and a cylinder barrel capable of translating along the length direction of the base is arranged on the frame through a support component. The top of the frame is provided with an end plug through a first hydraulic cylinder, the end plug is matched with the cylinder barrel to achieve sealing of the cylinder barrel, the frame is provided with a clamping mechanism used for enhancing the stability of the cylinder barrel and capable of monitoring the compression condition of the cylinder barrel in real time, and the clamping mechanism comprises a clamping plate arranged between the frame and the cylinder barrel. The clamping plate can move in the direction perpendicular to the axis of the cylinder barrel through a screw penetrating through the frame, and a handle is arranged at the end, away from the clamping plate, of the screw. According to the isostatic pressing forming machine, through the clamping mechanism, the stability of the cylinder barrel in the pressurizing process can be enhanced, shaking or displacement of the cylinder barrel can be reduced, the magnitude and change of pressure borne by different parts of the cylinder barrel can be known in time, and isostatic pressing forming technological parameters can be optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to material forming and processing technical field especially relates to a isostatic pressing forming machine. BACKGROUND

[0002] In the material forming field, the short board of traditional mould pressing, injection and other forming methods is obvious. Mould pressing is difficult to ensure the density uniformity of large and complex products, injection is difficult to form high melting point and high viscosity materials, and the equipment cost is also high. In order to overcome these difficulties, the isostatic pressing forming principle is born. Its working principle is based on Pascal's law. The pressure is uniformly applied to the material in the mould through liquid medium in the high-pressure container, so that the material is compacted and formed in all directions, effectively solving the problem of uneven pressure, especially suitable for the preparation of high-performance ceramics, powder metallurgy and composite materials.

[0003] When the isostatic pressing forming machine is working, under the huge pressure, the cylinder is easy to shake and displace under high pressure impact, thereby causing uneven pressure of the internal material, finally the size deviation of the formed product is large, and even internal cracks, inconsistent density and other quality defects occur. In addition, during the forming process, the operator is difficult to timely detect the pressure abnormity of the cylinder, thereby causing low safety performance of the equipment. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of isostatic pressing forming machines, including base, the base is provided with frame by fixed seat, and frame is provided with cylinder capable of translation along the length direction of base by support assembly on it, the top of the frame is provided with end plug that is sealed with cylinder by first hydraulic cylinder, and frame is provided with clamping mechanism for enhancing the stability of cylinder and can monitor the pressure condition of cylinder in real time.

[0005] To achieve the above object, the utility model adopts the following technology: an isostatic pressing forming machine, comprising a base, a frame is arranged on the base by a fixed seat, and a cylinder capable of translating along the length direction of the base is arranged on the frame by a support assembly, an end plug for sealing the cylinder is arranged on the top of the frame by a first hydraulic cylinder, and a clamping mechanism for enhancing the stability of the cylinder and monitoring the pressure condition of the cylinder in real time is arranged on the frame.

[0006] As a further description of the above technical solution: the clamping mechanism comprises a clamping plate arranged between the frame and the cylinder, the clamping plate can move in a direction perpendicular to the axis of the cylinder by a screw rod penetrating through the frame, and a handle is arranged at the end of the screw rod away from the clamping plate.

[0007] As a further description of the above technical solution: a gasket is arranged on one side of the clamping plate facing the cylinder, and the side of the gasket facing the cylinder protrudes outward to form a plurality of protrusions.

[0008] As a further description of the above technical solution: the clamping mechanism further comprises a pressure monitoring assembly.

[0009] The pressure monitoring assembly comprises a thin film pressure sensor arranged on the clamping plate through an adhesive, and the thin film pressure sensor is connected with an external controller through a flexible circuit board.

[0010] As a further description of the above technical solution: the guide rods are detachably mounted on the clamping plate at positions on both sides of the screw rod, and a limiting nut is arranged on the guide rod.

[0011] As a further description of the above technical solution: the support assembly comprises a mounting bottom plate in sliding connection with the fixed seat, and a second hydraulic cylinder arranged on the fixed seat, and a piston rod of the second hydraulic cylinder is detachably connected with the mounting bottom plate through a connecting plate.

[0012] As a further description of the above technical solution: the bottom of the mounting bottom plate is provided with a roller through a supporting leg, and a guide rail matched with the roller is arranged on the base.

[0013] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0014] The clamping mechanism can provide additional fixation and support for the cylinder barrel, which helps to enhance the stability of the cylinder barrel during the pressurization process, reduce its shaking or displacement, especially in a high-pressure environment, which can better ensure the position accuracy of the cylinder barrel, and is conducive to improving the quality consistency of the formed product.

[0015] In addition, the clamping mechanism can monitor the pressure distribution of the cylinder barrel in real time, and by acquiring these pressure data, the pressure size and changes of the cylinder barrel at different positions can be understood in a timely manner, which helps to optimize the isostatic pressing process parameters and avoid product defects caused by uneven pressure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 shows the overall structure schematic diagram according to the embodiment of the present application Figure 1 ;

[0017] Figure 2 shows the overall structure schematic diagram according to the embodiment of the present application Figure 2 ;

[0018] Figure 3 shows the structure schematic diagram of the clamping mechanism according to the embodiment of the present application

[0019] Figure 4 shows the structure schematic diagram of the gasket according to the embodiment of the present application

[0020] Figure 5 shows the structure schematic diagram of the pressure monitoring assembly according to the embodiment of the present application

[0021] Figure 6 A structure schematic diagram of the support assembly is shown.

[0022] Legend:

[0023] 1, base; 2, fixed seat; 3, frame; 4, support assembly; 41, mounting bottom plate; 42, second hydraulic cylinder; 43, connecting plate; 44, support leg; 45, roller; 46, guide rail; 5, cylinder barrel; 6, first hydraulic cylinder; 7, end plug; 8, clamping mechanism; 81, clamping plate; 82, screw rod; 83, handle; 84, gasket; 841, convex strip; 85, pressure monitoring assembly; 851, thin film pressure sensor; 852, back adhesive; 853, flexible circuit board; 86, guide rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Reference Figures 1-6 The isostatic pressing machine provided in the embodiment comprises a base 1, the base 1 is provided with a frame 3 through a fixed seat 2, and the frame 3 is provided with a cylinder barrel 5 capable of translating along the length direction of the base 1 through a support assembly 4, and the top of the frame 3 is provided with an end plug 7 for sealing the cylinder barrel 5 through a first hydraulic cylinder 6.

[0026] In the present application, when the isostatic pressing machine is used for material processing, the machine is fixed through the base 1 and stably placed in the workplace, the material to be formed is prepared according to the process requirements, then a suitable mold is put into the cylinder barrel 5, the position of the mold is adjusted as needed to ensure that it is placed stably in the cylinder barrel 5, the first hydraulic cylinder 6 is controlled to make the piston rod thereof extend downward to drive the end plug 7 to descend, the end plug 7 is tightly fitted with the cylinder barrel 5 to realize the sealing of the cylinder barrel 5, so that the high-pressure liquid does not leak during the isostatic pressing process, the high-pressure liquid is injected into the cylinder barrel 5 through a pressurizing system to gradually increase the pressure in the cylinder barrel 5 to reach a predetermined isostatic pressing pressure value, when the pressure in the cylinder barrel 5 reaches the predetermined value, the pressure is maintained for a period of time, so that the material is fully compacted and formed under high pressure, after the pressure maintaining is completed, the pressure in the cylinder barrel 5 is slowly reduced through the pressurizing system to restore the pressure to normal pressure, then the end plug 7 is separated from the cylinder barrel 5 under the action of the first hydraulic cylinder 6, at this time, the cylinder barrel 5 is moved to the outside of the frame 3 through the support assembly 4, and then the unloading work can be conveniently performed;

[0027] In addition, the support assembly 4 comprises a mounting bottom plate 41 in sliding connection with the fixed seat 2, and a second hydraulic cylinder 42 arranged on the fixed seat 2, the piston rod of the second hydraulic cylinder 42 is detachably connected with the mounting bottom plate 41 through a connecting plate 43, the bottom of the mounting bottom plate 41 is provided with a roller 45 through a supporting leg 44, and the base 1 is provided with a guide rail 46 matched with the roller 45, when the next forming work is performed after the material unloading is completed, the mold loaded with the material is placed in the cylinder barrel 5, then the extension and contraction of the second hydraulic cylinder 42 can push the mounting bottom plate 41 to slide on the fixed seat 2, so that the cylinder barrel 5 is translated along the length direction of the base 1, and the cylinder barrel 5 is moved into the frame 3, then the first hydraulic cylinder 6 drives the end plug 7 to descend and cooperate with the cylinder barrel 5 to seal, the cooperation of the roller 45 and the guide rail 46 greatly reduces the friction of the mounting bottom plate 41 when moving, so that the translation of the cylinder barrel 5 is more relaxed and smooth. Meanwhile, the structure can improve the precision and stability of the movement of the cylinder barrel 5, and ensure that the cylinder barrel 5 can be accurately moved to the predetermined position.

[0028] Specifically, as shown in Figure 2 and Figure 3 , the frame 3 is provided with a clamping mechanism 8 for enhancing the stability of the cylinder barrel 5 and being capable of monitoring the pressure condition of the cylinder barrel 5 in real time, the clamping mechanism 8 comprises a clamping plate 81 arranged between the frame 3 and the cylinder barrel 5, the clamping plate 81 is capable of moving along the direction perpendicular to the axis of the cylinder barrel 5 through a screw rod 82 penetrating through the frame 3, one end of the screw rod 82 away from the clamping plate 81 is provided with a handle 83, and guide rods 86 are detachably arranged on the clamping plate 81 at positions on both sides of the screw rod 82, and the guide rods 86 are provided with limiting nuts.

[0029] Wherein, the operator can drive the screw rod 82 to rotate by rotating the handle 83, so that the clamping plate 81 moves along the direction perpendicular to the axis of the cylinder barrel 5, and the clamping or loosening of the cylinder barrel 5 is realized, the guide rods 86 provide a guiding effect for the movement of the clamping plate 81, so that the clamping plate 81 can keep stable when moving along the direction perpendicular to the axis of the cylinder barrel 5, and the inclination or jamming phenomenon is avoided. The limiting nuts can limit the movement range of the clamping plate 81, so as to prevent the clamping plate 81 from moving excessively and causing damage to the cylinder barrel 5 or other components. Meanwhile, the detachable guide rods 86 facilitate the installation, debugging and maintenance of the equipment, and the movable clamping plate 81 can adjust the clamping force of the clamping plate 81 on the cylinder barrel 5 according to actual needs, so as to adapt to the cylinder barrels 5 of different sizes and working requirements, and enhance the stability of the cylinder barrel 5 in the isostatic pressing process, prevent the displacement or shaking of the cylinder barrel 5 due to the pressure effect, and better ensure the position precision of the cylinder barrel 5, which is beneficial to improving the quality consistency of the formed products.

[0030] It should be noted that a gasket 84 is provided on the side of the clamping plate 81 facing the cylinder 5, and the side of the gasket 84 facing the cylinder 5 protrudes outward to form several ridges 841. The gasket 84 is made of rubber. The setting of the gasket 84 can avoid direct contact between the clamping plate 81 and the cylinder 5, and prevent the clamping plate 81 from damaging the surface of the cylinder 5. The presence of the ridges 841 increases the friction between the gasket 84 and the cylinder 5, making the clamping plate 81 clamp the cylinder 5 more firmly and reliably. At the same time, the contact area between the ridges 841 and the cylinder 5 is relatively small, which can better adapt to the unevenness of the cylinder 5 surface during clamping, further improving the clamping effect.

[0031] Specifically, such as Figure 2 , Figure 3 and Figure 5 As shown, the clamping mechanism 8 also includes a pressure monitoring component 85, which includes a thin-film pressure sensor 851 mounted on the clamping plate 81 via an adhesive backing 852, and the thin-film pressure sensor 851 is connected to an external controller via a flexible circuit board 853.

[0032] The thin-film pressure sensor 851 monitors the pressure between the clamping plate 81 and the cylinder 5 in real time and converts the pressure data into an electrical signal. This signal is transmitted to an external controller via a flexible circuit board 853. Operators can view the pressure on the cylinder 5 in real time through the external controller. When abnormal pressure occurs, the external controller can issue an alarm or take appropriate control measures to ensure the safety of the equipment and products. Furthermore, this pressure data can provide a reference for optimizing the isostatic pressing process. The thin-film pressure sensor 851 uses a Flex iForce A201 sensor, which can accurately sense minute pressure changes and promptly capture subtle pressure fluctuations during the isostatic pressing process, outputting reliable data.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An isostatic press machine characterized by comprising: The application relates to a frame structure, which comprises a base (1), a frame (3) arranged on the base (1) through a fixing base (2), a cylinder (5) capable of translating along the length direction of the base (1) arranged on the frame (3) through a support assembly (4), an end plug (7) arranged on the top of the frame (3) through a first hydraulic cylinder (6) and capable of realizing sealing of the cylinder (5), and a clamping mechanism (8) arranged on the frame (3) and capable of enhancing the stability of the cylinder (5) and monitoring the pressure condition of the cylinder (5) in real time.

2. An isostatic press as claimed in claim 1, characterized in that The clamping mechanism (8) comprises a clamping plate (81) arranged between the frame (3) and the cylinder (5), the clamping plate (81) is capable of moving along the direction perpendicular to the axis of the cylinder (5) through a screw rod (82) penetrating through the frame (3), and a handle (83) is arranged at the end of the screw rod (82) far away from the clamping plate (81).

3. An isostatic press as claimed in claim 2, characterized in that A gasket (84) is arranged on the side of the clamping plate (81) facing the cylinder (5), and a plurality of convex strips (841) are formed on the side of the gasket (84) facing outward.

4. An isostatic press according to claim 2 or 3, characterised in that The clamping mechanism (8) further comprises a pressure monitoring assembly (85); The pressure monitoring assembly (85) comprises a thin film pressure sensor (851) arranged on the clamping plate (81) through a back adhesive (852), and the thin film pressure sensor (851) is connected with an external controller through a flexible circuit board (853).

5. An isostatic press as claimed in claim 2, wherein Guide rods (86) are detachably arranged on the clamping plate (81) at positions on both sides of the screw rod (82), and a limiting nut is arranged on the guide rod (86).

6. An isostatic press as claimed in claim 1, wherein The support assembly (4) comprises a mounting bottom plate (41) slidably connected with the fixing base (2), and a second hydraulic cylinder (42) arranged on the fixing base (2), and the piston rod of the second hydraulic cylinder (42) is detachably connected with the mounting bottom plate (41) through a connecting plate (43).

7. An isostatic press as claimed in claim 6, characterized in that Rollers (45) are arranged on the bottom of the mounting bottom plate (41) through supporting legs (44), and guide rails (46) matched with the rollers (45) are arranged on the base (1).

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