Hydraulic machining system suitable for thruster grid electrode

Abstract

The invention relates to the technical field of propellers, in particular to a hydraulic machining system suitable for a propeller grid electrode, which comprises a high-pressure oil source, an upper mold, a lower mold, a locking oil cylinder, a hydraulic lock, a mold temperature controller and a heating medium, a to-be-processed grid is arranged between the upper die and the lower die, and a closed cavity is formed between the to-be-processed grid and the lower die; a high-pressure oil source is connected with the closed chamber through a proportional pressure reducing valve and a one-way valve; a piston rod of the locking oil cylinder is connected with the lower die; the hydraulic lock is a bidirectional hydraulic lock and is connected with two oil cavities of the locking oil cylinder; the mold temperature controller is connected with the lower mold; and the heating medium is connected with the mold temperature controller through a pump. Through the hydraulic high-pressure forming technology, system heating is combined in the forming process, stable and reliable manufacturing forming of the grid is achieved, materials are saved, and the yield of the grid is improved.

Description

Technical Field

[0001] The present application relates to the technical field of thrusters, and in particular to a hydraulic processing system suitable for thruster grids. Background Art

[0002] The grid assembly is the core component of the thruster. Its main function is to generate thrust by focusing and accelerating ions. It is one of the key factors that determine the performance, life and reliability of the thruster.

[0003] Existing thruster grids are generally manufactured by mechanical cutting or mechanical stamping. However, the cutting efficiency is low and material waste is serious during the cutting process. During the stamping process, the formed plastic of the grid parts varies unevenly and the yield rate is low. Both manufacturing methods have major production drawbacks. Summary of the invention

[0004] The present application provides a hydraulic processing system suitable for a thruster grid, which utilizes hydraulic high-pressure forming technology and combines system heating during the forming process to achieve stable and reliable forming of the grid.

[0005] In order to achieve the above-mentioned purpose, the present application provides a hydraulic processing system suitable for a thruster grid, including a high-pressure oil source, an upper mold, a lower mold, a locking cylinder, a hydraulic lock, a mold temperature controller and a heating medium, wherein: the upper mold is fixedly installed, the lower mold is arranged directly below the upper mold, the grid to be processed is arranged between the upper mold and the lower mold, and forms a closed chamber between the upper mold and the lower mold; the high-pressure oil source is connected to the closed chamber through a proportional pressure reducing valve and a one-way valve; the piston rod of the locking cylinder is connected to the lower mold; the hydraulic lock is a bidirectional hydraulic lock, which is connected to the two oil chambers of the locking cylinder; the mold temperature controller is connected to the lower mold; and the heating medium is connected to the mold temperature controller through a pump.

[0006] Furthermore, an accumulator is provided at the inlet of the proportional pressure reducing valve.

[0007] Furthermore, a pressure sensor is connected to the sealed chamber.

[0008] Furthermore, it also includes an oil pressure release valve, which is connected to the closed chamber.

[0009] Furthermore, it also includes a reversing valve, which is connected to the hydraulic lock.

[0010] Furthermore, when the gate is processed and formed, the gate to be processed is first fixed and locked between the upper mold and the lower mold through the locking cylinder and the hydraulic lock; then the high-pressure oil source outputs high-pressure oil to the closed chamber to shape the gate to be processed; finally, the gate to be processed is heated by the mold temperature controller and the heating medium.

[0011] The present application provides a hydraulic processing system for a thruster grid, which has the following beneficial effects:

[0012] The present application uses hydraulic high-pressure forming technology and combines system heating during the forming process to achieve stable and reliable manufacturing and forming of the gate; achieves reliable closure of the upper mold and the lower mold through a locking cylinder; uses a proportional pressure reducing valve to control the cavity pressure between the gate and the lower mold to complete the pressure loading on the gate, thereby achieving plastic deformation of the gate; uses a mold temperature controller to heat the lower mold and the gate, thereby reducing deformation and rebound of the gate, saving materials, and improving the yield rate of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0014] Figure 1 is a schematic diagram of a hydraulic processing system for a thruster grid provided according to an embodiment of the present application;

[0015] In the figure: 1-high pressure oil source, 2-upper mold, 3-lower mold, 4-locking cylinder, 5-hydraulic lock, 6-mold temperature controller, 7-heating medium, 8-proportional pressure reducing valve, 9-check valve, 10-pump, 11-accumulator, 12-pressure sensor, 13-oil pressure release valve, 14-reversing valve, 15-grid to be processed. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0017] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0018] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0019] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0020] In addition, the term "plurality" shall mean two or more.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] like Figure 1 As shown, the present application provides a hydraulic processing system suitable for a thruster grid, including a high-pressure oil source 1, an upper mold 2, a lower mold 3, a locking cylinder 4, a hydraulic lock 5, a mold temperature controller 6 and a heating medium 7, wherein: the upper mold 2 is fixedly installed, the lower mold 3 is arranged directly below the upper mold 2, the grid 15 to be processed is arranged between the upper mold 2 and the lower mold 3, and forms a closed chamber between the lower mold 3; the high-pressure oil source 1 is connected to the closed chamber through a proportional pressure reducing valve 8 and a one-way valve 9; the piston rod of the locking cylinder 4 is connected to the lower mold 3; the hydraulic lock 5 is a bidirectional hydraulic lock 5, connected to the two oil chambers of the locking cylinder 4; the mold temperature controller 6 is connected to the lower mold 3; the heating medium 7 is connected to the mold temperature controller 6 through a pump 10.

[0023] Specifically, the hydraulic processing system suitable for the thruster grid provided in the embodiment of the present application utilizes hydraulic high-pressure technology to achieve the fixed locking and plastic deformation of the grid, and then heats the grid through the heating medium 7, and finally completes the manufacturing and forming of the thruster grid. Among them, the upper mold 2 and the lower mold 3 are mainly used to lock and fix the grid 15 to be processed. The upper mold 2 is a fixed structure. The grid 15 to be processed is arranged between the upper mold 2 and the lower mold 3. There is a certain gap between the lower mold 3 and the grid 15 to be processed, thereby forming a closed chamber; the high-pressure oil source 1 is used to provide high-pressure oil for shaping the grid 15 to be processed, and is connected to the closed chamber through a pipeline. A proportional pressure reducing valve 8 and a one-way valve 9 are arranged on the pipeline to control the output pressure and output volume of the high-pressure oil; the piston rod of the locking cylinder 4 is connected to the lower mold 3, which is used to control the position of the lower mold 3, and is adjusted according to the position where the grid 15 to be processed is placed, so as to achieve fixed locking of the grid 15 to be processed; the hydraulic lock 5 is a bidirectional hydraulic lock 5, which is connected to the two oil chambers of the locking cylinder 4, and the locking position of the locking cylinder 4 is realized by the bidirectional hydraulic lock 5 to ensure that the upper and lower molds can be locked; the heating medium 7 is input into the mold temperature controller 6 through the pump 10, and then input into the lower mold 3 after heating to achieve heating of the mold and the grid.

[0024] Furthermore, an accumulator 11 is provided at the inlet of the proportional pressure reducing valve 8. The accumulator 11 is used for maintaining pressure to ensure that the pressure can be outputted constantly without fluctuation during the processing.

[0025] Furthermore, the sealed chamber is connected with a pressure sensor 12. The pressure sensor 12 is in communication with the sealed chamber and is used to detect the pressure inside the sealed chamber.

[0026] Furthermore, it also includes an oil pressure release valve 13, which is connected to the sealed chamber. The oil pressure release valve 13 is arranged at the bottom of the sealed chamber to release the oil pressure after the gate is formed.

[0027] Furthermore, it also includes a reversing valve 14, which is connected to the hydraulic lock 5. The forward and backward movement of the locking cylinder 4 is controlled by the reversing valve 14 and the hydraulic lock 5, so as to realize the control of the position of the lower mold 3.

[0028] Furthermore, when the gate is processed and formed, the gate 15 to be processed is first fixed and locked between the upper mold 2 and the lower mold 3 by the locking cylinder 4 and the hydraulic lock 5; then the high-pressure oil source 1 outputs high-pressure oil to the closed chamber to shape the gate 15 to be processed; finally, the gate 15 to be processed is heated by the mold temperature controller 6 and the heating medium 7.

[0029] Specifically, the gate processing and molding in the embodiment of the present application mainly includes three processes, namely mold locking, pressure loading shaping and molding heating. When locking the mold, first place the gate 15 to be processed between the upper mold 2 and the lower mold 3, and then control the piston rod of the locking cylinder 4 through the reversing valve 14 and the hydraulic lock 5 to adjust the position of the lower mold 3, so as to achieve the fixed locking of the gate 15 to be processed by the upper mold 2 and the lower mold 3, and form a closed chamber between the lower mold 3 and the gate 15 to be processed; when pressure loading shaping is performed, high-pressure oil is input into the closed chamber through the high-pressure oil source 1, and the input pressure is adjusted through the proportional pressure reducing valve 8 according to the indication of the pressure sensor 12. When the closed chamber is filled with high-pressure oil, the pressure inside the closed chamber is increased. When the pressure reaches the set value, the one-way valve 9 is closed and no high-pressure oil is input. At this time, the plastic deformation of the gate is achieved by the pressure loading of the high-pressure oil. After the molding is completed, the oil pressure is released by the oil pressure release valve 13; when heating the molded part, the heating medium 7 is input into the mold temperature controller 6 through the pump 10 for heating, and then input into the lower mold 3 through the pipeline to heat the lower mold 3, thereby realizing the heating molding of the gate 15 to be processed above the lower mold 3. After the heating is completed, the heating medium 7 can also be recycled into the mold temperature controller 6 for recycling. The use of the embodiment of the present application for gate processing and molding saves materials, improves the yield rate of the gate, and can achieve stable and reliable manufacturing and molding of the gate.

[0030] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hydraulic processing system suitable for a thruster grid, characterized in that: It includes a high-pressure oil source, an upper mold, a lower mold, a locking cylinder, a hydraulic lock, a mold temperature controller and a heating medium, among which: The upper mold is fixedly installed, the lower mold is arranged directly below the upper mold, and the gate to be processed is arranged between the upper mold and the lower mold, and a closed cavity is formed between the upper mold and the lower mold; The high-pressure oil source is connected to the closed chamber via a proportional pressure reducing valve and a one-way valve; The piston rod of the locking oil cylinder is connected to the lower mold; The hydraulic lock is a bidirectional hydraulic lock connected to the two oil chambers of the locking cylinder; The mold temperature controller is connected to the lower mold; The heating medium is connected to the mold temperature controller via a pump.

2. The hydraulic processing system for thruster grid according to claim 1, characterized in that: An accumulator is arranged at the inlet of the proportional pressure reducing valve.

3. The hydraulic processing system for thruster grid according to claim 2, characterized in that: The sealed chamber is connected with a pressure sensor.

4. The hydraulic processing system for thruster grid according to claim 3, characterized in that: It also includes an oil pressure release valve, which is connected to the closed chamber.

5. The hydraulic processing system for thruster grid according to claim 4, characterized in that: It also includes a reversing valve, which is connected to the hydraulic lock.

6. The hydraulic processing system for thruster grid according to claim 5, characterized in that: When the gate is processed and formed, the gate to be processed is first fixed and locked between the upper mold and the lower mold by the locking cylinder and the hydraulic lock; then the high-pressure oil source outputs high-pressure oil to the closed chamber to shape the gate to be processed; finally, the gate to be processed is heated by the mold temperature controller and the heating medium.

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