Multi-pressurized gas-liquid booster cylinder and its method

Abstract

This invention discloses a multi-pressurized pneumatic-hydraulic booster cylinder and its method, comprising: a pneumatic-hydraulic assembly including a forward cylinder, a first piston, a booster cylinder, and a second piston; the forward cylinder having a first moving chamber and the booster cylinder having a second moving chamber; a working hydraulic cylinder having a liquid storage chamber and a liquid injection port; an oil storage assembly including a liquid storage cylinder, a moving piston, and a liquid storage and pressurization unit; the liquid storage cylinder storing booster liquid and having an outlet and an inlet; and the liquid storage and pressurization unit including a first pressurizing component and a second pressurizing component; and a control assembly including a first controller and a second controller. The pneumatic-hydraulic booster cylinder of this invention can avoid direct contact between compressed gas and hydraulic oil and can increase output force, thereby improving the working efficiency of the pneumatic-hydraulic booster cylinder.

Description

Technical Field

[0001] This invention belongs to the field of power drive equipment, and specifically relates to a multi-pressurized gas-liquid booster cylinder and its working method. Background Technology

[0002] A pneumatic-hydraulic booster cylinder is a device that utilizes the interaction of gas and liquid, applying pneumatic and hydraulic pressure to a working piston to increase output force. The application of pneumatic-hydraulic booster cylinders can improve processing efficiency. They are widely used in many industries, such as machinery manufacturing, engineering machinery, and aerospace, providing smooth acceleration and deceleration. In practical applications, pneumatic-hydraulic booster cylinders offer advantages such as easy installation, simple structure, and improved work efficiency.

[0003] Currently, while existing pneumatic-hydraulic booster cylinders can meet the needs of ordinary boosting applications, they have some problems. Generally, existing pneumatic-hydraulic booster cylinders use compressed air to directly contact hydraulic oil. When the compressed air contains moisture or other impurities, the moisture can easily deteriorate the hydraulic oil, which in turn makes the working pressure inside the booster cylinder unstable. Furthermore, impurities can easily damage the internal seals of the booster cylinder, causing oil or air leaks. As a result, moisture or impurities can affect the service life of the pneumatic-hydraulic booster cylinder.

[0004] In addition, existing pneumatic-hydraulic booster cylinders require increased cylinder diameter and pneumatic energy, as well as more hydraulic oil, to increase output force. This results in reduced operating speed and significantly increased costs.

[0005] Therefore, there is an urgent need for a pneumatic-hydraulic booster cylinder that can avoid direct contact between compressed gas and hydraulic oil, increase output force, and thus improve the working efficiency of the pneumatic-hydraulic booster cylinder. Summary of the Invention

[0006] Purpose of the invention: To overcome the above shortcomings, the purpose of this invention is to provide a multi-pressurized gas-liquid booster cylinder, which has a simple structure, is easy to manufacture, and is flexible in application. It can use a moving piston to avoid direct contact between the booster liquid in the storage tank and the compressed air, and avoid the interference of compressed air containing moisture or other impurities on the booster liquid. It can also provide pressurization to the booster liquid through the storage pressurization unit, reduce the cost required to increase the diameter of the gas-liquid booster cylinder, and improve the working efficiency of the gas-liquid booster cylinder.

[0007] To solve the above-mentioned technical problems, the present invention provides a multi-pressurized gas-hydraulic booster cylinder, comprising: a gas-hydraulic assembly including a forward cylinder body, a first piston, a booster cylinder body, and a second piston; the forward cylinder body having a first moving chamber, the first piston being installed in the first moving chamber, and both ends of the first piston passing through the forward cylinder body; the booster cylinder body having a second moving chamber, the second piston being at least partially inserted into the second moving chamber; a working hydraulic cylinder body installed between the forward cylinder body and the booster cylinder body, the working hydraulic cylinder body having a liquid storage chamber and a liquid injection port, the liquid injection port being connected to the liquid storage chamber; and an oil storage assembly including a liquid storage cylinder, a movable piston, and a liquid storage booster unit. The unit comprises a reservoir containing a boosting liquid, and the reservoir having an outlet and an inlet, the outlet being connected to the injection port; a movable piston being installed inside the reservoir; a liquid boosting unit including a first booster and a second booster, the first booster being installed inside the reservoir and the second booster being installed on the movable piston, the second booster cooperating with the first booster to provide boosting operation for the boosting liquid in the reservoir; and a control component including a first controller and a second controller, the first controller being connected to the forward cylinder, the boosting cylinder, the working hydraulic cylinder, and the reservoir respectively; and the second controller being connected to the first controller and the liquid boosting unit respectively.

[0008] By adopting the above technical solution, direct contact between the boosting liquid in the storage tank and the compressed air can be avoided, thereby preventing compressed air containing moisture or other impurities from affecting the boosting liquid. Furthermore, by using the storage pressurization unit, the boosting liquid can be pressurized, reducing the cost required to increase the diameter of the gas-liquid boosting cylinder and improving the movement efficiency of the gas-liquid boosting cylinder.

[0009] Furthermore, the first piston component includes a forward piston, a first piston rod, and a second piston rod. The forward piston is installed in the first motion chamber. One end of the first piston rod is fixedly connected to the forward piston, and the other end of the first piston rod passes through the forward cylinder. One end of the second piston rod is fixedly connected to the forward piston, and the other end of the second piston rod is at least partially inserted into the liquid storage chamber.

[0010] By adopting the above technical solution and using a double-supported piston rod design, the pneumatic-hydraulic booster cylinder can be provided with safe, accurate and reliable operation.

[0011] Furthermore, the second piston component includes a booster piston, a reservoir piston, and a third piston rod. The booster piston and the reservoir piston are installed in the second motion chamber. One end of the third piston rod is fixedly connected to the booster piston, and the other end of the third piston rod passes through the reservoir piston and is at least partially inserted into the reservoir chamber.

[0012] Furthermore, the second piston component also includes a compression spring, which is installed between the booster piston and the reservoir piston, and the two ends of the compression spring respectively abut against the booster piston and the reservoir piston.

[0013] By adopting the above technical solution, the compression spring can both return the booster piston to the starting position and generate pre-pressure in the oil reservoir. Thus, even when the air circuit of the pneumatic-hydraulic booster cylinder is closed, the booster liquid in the oil reservoir can still maintain a certain pre-pressure, thereby ensuring that the pneumatic-hydraulic booster cylinder can work reliably in any installation direction and position. In addition, the compression spring can reduce the air consumption of the pneumatic-hydraulic booster cylinder during operation. That is, the piston of the pneumatic-hydraulic booster cylinder returns to the starting position non-pneumatically, without consuming compressed air, which can reduce the energy consumption of the pneumatic-hydraulic booster cylinder.

[0014] Furthermore, the first pressurizing component uses a first electromagnet, and the second pressurizing component uses a second electromagnet. The first electromagnet is installed inside the liquid storage cylinder, and the second electromagnet is installed on the moving piston component.

[0015] By adopting the above technical solution, it is possible to provide pressurization for the boosting liquid, reduce the cost required to increase the diameter of the gas-liquid boosting cylinder, and improve the motion efficiency of the gas-liquid boosting cylinder.

[0016] Furthermore, the liquid storage and pressurization unit also includes a telescopic connecting rod, the two ends of which are respectively connected to the movable piston and the liquid storage cylinder.

[0017] By adopting the above technical solution, it is possible to provide wiring for the power supply line and reduce the movement and shaking of the moving piston component, thereby improving the operational stability of the moving piston component.

[0018] Furthermore, the liquid storage and pressurization unit also includes a first power supply component and a first rotating component. The first power supply component is installed inside the movable piston component and is connected to the second electromagnet. The first rotating component is installed inside the movable piston component and is connected to the second electromagnet.

[0019] Furthermore, the liquid storage and pressurization unit also includes a first contact and a second contact. The first contact is mounted on the movable piston and connected to the first power supply. The second contact is mounted inside the liquid storage cylinder and connected to an external power supply device. Through the contact between the second contact and the first contact, the power stored in the external power supply device is introduced into the first power supply device.

[0020] By adopting the above technical solution, the first electromagnet can be driven to rotate, changing the connection between the positive and negative terminals of the power supply and the second electromagnet, thereby changing the magnetic poles of the second electromagnet by changing the direction of the current; and, after the moving piston is reset, it can provide a contact charging operation for the first power supply component.

[0021] Furthermore, the gas-liquid assembly also includes a gas-liquid booster unit, which includes a third electromagnet, a fourth electromagnet, a second power supply component, and a second rotating component. The third electromagnet is mounted on the booster piston, and the fourth electromagnet is mounted inside the booster cylinder. The second power supply component is mounted inside the booster piston and connected to the third electromagnet, and the second rotating component is mounted inside the booster piston and connected to the third electromagnet.

[0022] By adopting the above technical solution, the air consumption of the pneumatic-hydraulic booster cylinder during operation can be further reduced; it can also drive the second power supply component to rotate, change the connection between the positive and negative terminals of the power supply and the third electromagnet, and then change the magnetic pole of the third electromagnet by changing the direction of the current; it can also provide contact charging operation for the second power supply component after the moving piston component is reset.

[0023] Furthermore, the liquid storage cylinder is also provided with a gas distribution component. One end of the gas distribution component is fixedly connected to the liquid storage cylinder and at least partially passes through the inlet. The other end of the gas distribution component is at least partially inserted into the liquid storage cylinder and has air holes. Several air holes are arranged in an array along the axial direction of the gas distribution component.

[0024] By adopting the above technical solution, the compressed air introduced by the air source is evenly introduced into the liquid storage tank through the air hole, avoiding uneven compressed air entering the liquid storage tank, which could cause slight displacement of the moving piston, resulting in leakage of the boosting liquid or contact between the compressed air and the boosting liquid.

[0025] Furthermore, the forward cylinder body is provided with a first air port, and the working hydraulic cylinder body is provided with a second air port. The first air port and the second air port are connected to the first motion chamber. The booster cylinder body is provided with a third air port and a fourth air port. The third air port and the fourth air port are respectively connected to the second motion chamber.

[0026] Furthermore, the first controller includes a first control valve, a second control valve, a third control valve, and an air filter. The first control valve is connected to a first air port and a second air port, the second control valve is connected to a third air port and a fourth air port, and the two ends of the air filter are connected to an air distribution component and the third control valve, respectively.

[0027] This invention also provides a method for operating a multi-pressurized gas-liquid booster cylinder. Using the aforementioned multi-pressurized gas-liquid booster cylinder, the method includes the following steps: Step S1: By introducing a first preset gas into the forward cylinder, the first piston is driven to move towards the workpiece to be processed, bringing the workpiece into contact with the cylinder; Step S2: By introducing a second preset gas into the liquid storage cylinder, the moving piston is driven to move towards the liquid outlet, introducing booster liquid into the liquid storage chamber, while simultaneously increasing the movement speed of the moving piston through the liquid storage pressurization unit; Step S3: By introducing the first preset gas into the booster cylinder... The second piston is driven to move towards the first piston, thereby squeezing the boosting liquid in the storage chamber through the second piston, forming a high-pressure boosting liquid that drives the first piston to generate a boosting stroke; Step S4: By introducing a third preset gas into the forward cylinder, the first piston is driven to move towards the boosting cylinder, and the first piston is quickly reset. At the same time, the liquid storage pressurization unit drives the moving piston to move towards the input port, and the moving piston is quickly reset. Simultaneously, by introducing a third preset gas into the boosting cylinder, the second piston is driven to move towards the boosting cylinder, and the second piston is quickly reset.

[0028] Further, the method for driving the movement of the movable piston and the second piston is as follows: Step S50: When the movable piston moves toward the outlet, a repulsive force is generated between the first electromagnet and the second electromagnet to increase the movement speed of the movable piston, thereby introducing the boosting liquid into the storage chamber through the movable piston. At the same time, the repulsive force between the first electromagnet and the second electromagnet provides pre-pressure to the first piston. Step S51: When the second piston moves toward the first piston, a repulsive force is generated between the third electromagnet and the fourth electromagnet to increase the movement speed of the second piston. Step S52: When the movable piston and the second piston are reset, an attractive force is generated between the first electromagnet and the second electromagnet to move the movable piston toward the inlet. An attractive force is generated between the third electromagnet and the fourth electromagnet to move the second piston toward the boosting cylinder.

[0029] Further, the method for moving the movable piston towards the input port is as follows: Step S500: The movable piston is driven to move towards the input port by the attraction force generated between the first electromagnet and the second electromagnet, so that the second contact member abuts against the first contact member; Step S501: External power enters the first contact member through the second contact member, and then is introduced to the first power supply member through the first contact member.

[0030] The technical solution of the present invention has the following advantages compared with the prior art:

[0031] 1. The multi-pressurized gas-liquid booster cylinder of the present invention adopts a double-supported piston rod design, which can provide safe, accurate and reliable operation, and uses a moving piston component to avoid direct contact between the booster liquid in the storage tank and the compressed air, thus avoiding the impact of compressed air containing moisture or other impurities on the booster liquid.

[0032] 2. It can provide pressurization for the boosting liquid, reduce the cost required to increase the diameter of the gas-hydraulic boosting cylinder, and improve the motion efficiency of the gas-hydraulic boosting cylinder;

[0033] 3. It can reduce the air consumption of the pneumatic-hydraulic booster cylinder during operation. That is, the piston of the pneumatic-hydraulic booster cylinder returns to the starting position non-pneumatically, without consuming compressed air, which can reduce the energy consumption of the pneumatic-hydraulic booster cylinder.

[0034] 4. It can drive the second electromagnet to rotate, change the connection between the positive and negative terminals of the power supply and the first electromagnet, and then change the magnetic pole of the second electromagnet by changing the direction of the current. It can also provide contact charging operation for the first power supply after the moving piston is reset.

[0035] 5. It can evenly introduce the compressed air from the air source into the liquid storage tank through the air hole, avoiding uneven compressed air entering the liquid storage tank and causing the moving piston to shift, thereby preventing leakage of the boosting liquid or contact between compressed air and boosting liquid. Attached Figure Description

[0036] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0037] Figure 1 This is a first perspective view of the gas-liquid booster cylinder of the present invention;

[0038] Figure 2 This is a second perspective schematic diagram of the gas-liquid booster cylinder of the present invention;

[0039] Figure 3 This is a front view schematic diagram of the gas-liquid booster cylinder of the present invention;

[0040] Figure 4 This is a first cross-sectional schematic diagram of the gas-liquid booster cylinder of the present invention;

[0041] Figure 5 This is a partial cross-sectional schematic diagram of the liquid storage cylinder of the present invention;

[0042] Figure 6 This is a first perspective view of the movable piston component of the present invention;

[0043] Figure 7 This is a schematic diagram of the first rotation of the second pressurizing component of the present invention;

[0044] Figure 8 This is a second rotational schematic diagram of the movable piston component of the present invention;

[0045] Figure 9 This is a second perspective view of the movable piston component of the present invention;

[0046] Figure 10 This is a second cross-sectional schematic diagram of the gas-liquid booster cylinder of the present invention;

[0047] Figure 11 This is a connection diagram of the gas-liquid booster cylinder of the present invention;

[0048] Figure 12 This is a flowchart of the working method of the gas-liquid booster cylinder of the present invention;

[0049] Figure 13 This is a flowchart of the resetting method for the movable piston component of the present invention.

[0050] Explanation of reference numerals in the accompanying drawings: 2. Working hydraulic cylinder body; 10. Forward cylinder body; 11. First piston component; 12. Boosting cylinder body; 20. Liquid storage chamber; 21. Injection port; 30. Liquid storage cylinder; 31. Moving piston component; 41. Second controller; 100. First motion chamber; 101. First air port; 102. Second air port; 110. Forward piston; 111. First piston rod; 112. Second piston rod; 120. Third air port; 121. Fourth air port; 130. Boosting piston; 131. Liquid storage piston; 132. Third piston rod; 133. Compression spring. 140. Third electromagnet; 141. Fourth electromagnet; 142. Second power supply component; 143. Second rotating component; 144. Third contact component; 145. Fourth contact component; 300. Liquid outlet; 301. Inlet; 302. Gas distribution component; 303. Air vent; 320. First pressurizing component; 321. Second pressurizing component; 322. Telescopic connecting rod; 323. First power supply component; 324. First rotating component; 325. First contact component; 326. Second contact component; 400. First control valve; 401. Second control valve; 402. Third control valve. Detailed Implementation

[0051] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0052] One aspect of this invention provides a multi-pressure pneumatic-hydraulic booster cylinder. The pneumatic-hydraulic booster cylinder described herein preferably utilizes the interaction between gas and liquid, i.e., generating force by increasing gas pressure, thereby improving work efficiency. It has multiple working modes, including but not limited to pneumatic booster mode, hydraulic booster mode, and pneumatic-hydraulic mixed booster mode, which can be freely switched according to actual needs. The pneumatic-hydraulic booster cylinder is widely used in many industrial fields, such as machinery manufacturing, aerospace, automotive, and metallurgy. Common application equipment includes hydraulic machinery, lifting equipment, extruders, and injection molding machines.

[0053] A pneumatic-hydraulic booster cylinder typically consists of two parts: a pneumatic cylinder and a hydraulic cylinder. In general, the basic principle of a pneumatic-hydraulic booster cylinder is as follows: In the pneumatic cylinder, compressed air supplied by a pneumatic source acts on a piston, causing it to reciprocate. As the piston moves, the liquid in the hydraulic cylinder also moves. Through the connection between the piston and the liquid, pneumatic energy is converted into hydraulic energy, thus achieving force amplification. The working principle of a pneumatic-hydraulic booster cylinder is similar to the lever principle; by adjusting the area ratio of the pneumatic and hydraulic cylinders, different multiples of force amplification can be achieved. For example, when the pneumatic cylinder area is smaller and the hydraulic cylinder area is larger, the compression effect of the pneumatic energy can be amplified, thereby generating greater hydraulic pressure.

[0054] Reference Figures 1-4 , Figure 11 As shown, one aspect of the present invention provides a multi-pressurized gas-liquid booster cylinder, comprising:

[0055] The gas-liquid assembly includes a forward cylinder 10, a first piston 11, a booster cylinder 12, and a second piston. The forward cylinder 10 has a first motion chamber 100, and the first piston 11 is installed in the first motion chamber 100, with both ends of the first piston 11 passing through the forward cylinder 10. The booster cylinder 12 has a second motion chamber, and the second piston is at least partially inserted into the second motion chamber.

[0056] Among them, reference Figure 4 As shown, the first piston component 11 includes a forward piston 110, a first piston rod 111, and a second piston rod 112. The forward piston 110 is installed in the first motion chamber 100. One end of the first piston rod 111 is fixedly connected to the forward piston 110, and the other end of the first piston rod 111 passes through the first end of the forward cylinder 10. One end of the second piston rod 112 is fixedly connected to the forward piston 110, and the other end of the second piston rod 112 passes through the second end of the forward cylinder 10. Through the arrangement of the first piston rod 111 and the second piston rod 112, i.e., the double-supported piston rod design, the pneumatic-hydraulic booster cylinder can be provided with safe, accurate, and reliable operation.

[0057] Among them, reference Figure 4As shown, the booster cylinder 12 is also provided with a third air port 120 and a fourth air port 121. The third air port 120 is connected to one end of the second motion chamber, and the fourth air port 121 is connected to the other end of the second motion chamber.

[0058] Among them, reference Figure 4 As shown, the second piston assembly includes a booster piston 130, a reservoir piston 131, a third piston rod 132, and a compression spring 133. The booster piston 130 and the reservoir piston 131 are installed in the second moving chamber. One end of the third piston rod 132 is fixedly connected to the booster piston 130, and the other end of the third piston rod 132 passes through the reservoir piston 131. The compression spring 133 is installed between the booster piston 130 and the reservoir piston 131, and both ends of the compression spring 133 abut against the booster piston 130 and the reservoir piston 131, respectively. The outer circumference of the compression spring 133 is smaller than that of the booster piston 130 and the reservoir piston 131. The outer circumference of the compression spring 133 is greater than that of the outer circumference of the third piston rod 132. The compression spring 133 allows the booster piston 130 to return to its initial position and generates pre-pressure in the oil reservoir. This ensures that even when the air path of the pneumatic-hydraulic booster cylinder is closed, the booster liquid in the oil reservoir maintains a certain pre-pressure, thus guaranteeing reliable operation of the pneumatic-hydraulic booster cylinder in any installation direction and position. Furthermore, the compression spring 133 reduces the air consumption of the pneumatic-hydraulic booster cylinder during operation, as the piston's return to the initial position is non-pneumatic and requires no compressed air, thereby reducing the energy consumption of the pneumatic-hydraulic booster cylinder.

[0059] Among them, reference Figure 2 As shown, the forward cylinder 10 is also provided with a first air port 101, which is connected to one end of the first motion chamber 100.

[0060] The working hydraulic cylinder body 2 is installed between the forward cylinder body 10 and the booster cylinder body 12, and the working hydraulic cylinder body 2 has a liquid storage chamber 20 and a liquid injection port 21, and the liquid injection port 21 is connected to the liquid storage chamber 20.

[0061] The reservoir 20 contains a boosting fluid, which in this embodiment refers to hydraulic oil; Figure 4 As shown, one end of the second piston rod 112 passes through the forward cylinder 10 and is at least partially inserted into the liquid storage chamber 20; the other end of the third piston rod 132 passes through the liquid storage piston 131 and is at least partially inserted into the liquid storage chamber 20.

[0062] Among them, reference Figure 2 As shown, the working hydraulic cylinder body 2 is also provided with a second air port 102, which is connected to the other end of the first motion chamber 100.

[0063] The oil storage assembly includes a storage cylinder 30, a movable piston 31, and a storage pressurization unit. The storage cylinder stores a boosting liquid, and the storage cylinder 30 has an outlet 300 and an inlet 301. The outlet 300 is connected to the injection port 21. The movable piston 31 is installed inside the storage cylinder 30. The storage pressurization unit includes a first pressurizing component 320 and a second pressurizing component 321. The first pressurizing component 320 is installed inside the storage cylinder 30, and the second pressurizing component 321 is installed on the movable piston 31. The second pressurizing component 321 cooperates with the first pressurizing component 320 to provide pressurization for the boosting liquid in the storage cylinder 30.

[0064] Among them, reference Figure 1 As shown, the liquid storage cylinder 30 is installed on the booster cylinder 12, and the liquid storage cylinder 30 stores booster liquid.

[0065] By setting the movable piston 31, the boosting liquid in the reservoir 30 can be prevented from coming into direct contact with the compressed air, thereby preventing the compressed air containing moisture or other impurities from affecting the boosting liquid.

[0066] Among them, reference Figure 4 As shown, the first booster 320 uses a first electromagnet, and the second booster 321 uses a second electromagnet. The first electromagnet is installed inside the liquid storage cylinder 30, and the second electromagnet is installed on the moving piston 31. The use of the first and second electromagnets provides pressurization to the boosting liquid, reducing the cost required to increase the diameter of the gas-liquid boosting cylinder and improving the movement efficiency of the gas-liquid boosting cylinder. The liquid storage and boosting unit also includes a telescopic connecting rod 322. One end of the telescopic connecting rod 322 is connected to the moving piston 31, and the other end is connected to the liquid storage cylinder 30. The telescopic connecting rod 322 has a hollow design to allow the power supply line to pass through and connect to the second electromagnet. The telescopic connecting rod 322 provides a routing for the power supply line and reduces the movement and shaking of the moving piston 31, thereby improving the operational stability of the moving piston 31.

[0067] The control component includes a first controller and a second controller 41. The first controller is connected to the forward cylinder 10, the booster cylinder 12, the working hydraulic cylinder 2, and the reservoir 30, respectively. The second controller 41 is connected to the first controller and the reservoir pressurization unit, respectively.

[0068] The first controller includes a first control valve 400, a second control valve 401, a third control valve 402, and an air filter. The first control valve 400 is connected to the first air port 101 via a first speed regulating valve, and the first control valve 400 is connected to the second air port 102 via a second speed regulating valve. The second control valve 401 is connected to the third air port 120 via a third speed regulating valve, and the second control valve 401 is connected to the fourth air port 121 via a fourth speed regulating valve. The two ends of the air filter are respectively connected to the input port 301 and the third control valve 402, and the air filter provides filtration and drying treatment for the compressed air entering the liquid storage tank 30.

[0069] Preferably, the working principle of the multi-pressurized gas-liquid booster cylinder is as follows:

[0070] Fast-moving process: By opening the second speed control valve, compressed air is introduced into the first motion chamber 100 through the second air port 102. Under the action of the compressed air, the first piston 11 moves rapidly towards the workpiece to be processed and comes into contact with the workpiece. Since this fast-moving process is only pneumatic, it has the characteristics of pneumatic small force and fast speed, that is, to achieve "soft positioning" contact with the workpiece, which can maximize the protection of mold and product parts from damage.

[0071] The boost stroke includes the pre-compression stroke and the boost stroke.

[0072] The pre-pressurization stroke is initiated by opening the third control valve 402, which introduces compressed air through the air filter into the inlet 301 of the liquid storage cylinder 30. Under the action of the compressed air, the moving piston 31 squeezes the pressurized liquid into the liquid storage chamber 20. At the same time, the repulsive force generated between the first electromagnet and the second electromagnet increases the movement speed of the moving piston 31 and provides pre-pressurization.

[0073] The pressurization stroke is as follows: by opening the fourth speed control valve, compressed air is introduced into the second motion chamber through the fourth air port 121. The second piston moves towards the first piston 11 under the action of the compressed air, and then the second piston squeezes the boosting liquid in the liquid storage chamber 20, so that the pressure of the boosting liquid is increased to form a high-pressure boosting liquid, which in turn drives the first piston 11 to achieve a large-stroke pressure output.

[0074] Return stroke: After the boosting stroke is completed, the attraction between the first electromagnet and the second electromagnet will move the moving piston 31 toward the input port 301 and reset the moving piston 31.

[0075] Simultaneously, by opening the first speed control valve, compressed air is introduced into the first motion chamber 100 through the first air port 101. Under the action of the compressed air, the first piston 11 moves towards the booster cylinder 12, achieving rapid return.

[0076] At the same time, by opening the third speed control valve, compressed air is introduced into the second motion chamber through the third air port 120. The second piston moves towards the booster cylinder 12 under the action of the compression spring 133 and the compressed air, achieving rapid return.

[0077] In this embodiment, when the first speed regulating valve is open, the second speed regulating valve is closed, and when the second speed regulating valve is open, the first speed regulating valve is closed; when the third speed regulating valve is open, the fourth speed regulating valve is closed, and when the fourth speed regulating valve is open, the third speed regulating valve is closed; the direction of the current generating the repulsive force of the first electromagnet and the second electromagnet is opposite to the direction of the current generating the attractive force of the first electromagnet and the second electromagnet, and the magnetic poles of the first electromagnet and the second electromagnet are changed by changing the direction of the current; in addition, a spring can be provided in the liquid storage cylinder 30, one end of the spring is connected to the moving piston 31, and the other end of the spring is connected to the liquid storage cylinder 30, so that the moving piston 31 is reset by the elasticity of the spring.

[0078] Reference Figures 4-9 , Figure 11 As shown, one aspect of the present invention also provides a multi-pressurized gas-liquid booster cylinder, wherein the liquid storage and pressurization unit further includes a first power supply component 323, a first rotating component 324, a first contact component 325, and a second contact component 326.

[0079] Among them, reference Figure 4 As shown, the first power supply component 323 is installed inside the movable piston component 31 and connected to the second electromagnet; the first rotating component 324 is installed inside the movable piston component 31 and connected to the first power supply component 323. The first rotating component 324 drives the second electromagnet to rotate, thereby changing the direction of the current flowing through the second electromagnet.

[0080] Among them, reference Figure 4 , Figure 6 As shown, the first contact 325 is mounted on the end of the movable piston 31 near the input port 301 and is connected to the first power supply 323; Reference Figure 4 , Figure 5 As shown, the second contact 326 is installed inside the liquid storage cylinder 30 and connected to an external power supply device; when the moving piston 31 is reset, the first contact 325 contacts the second contact 326, and through the contact between the second contact 326 and the first contact 325, the power stored in the external power supply device is introduced into the first power supply device 323 for charging operation.

[0081] By adopting the above technical solution, the first power supply component 323 provides power to the second electromagnet; the first rotating component 324 drives the second electromagnet to rotate, changing the connection between the positive and negative terminals of the power supply and the second electromagnet, thereby changing the magnetic poles of the second electromagnet by changing the direction of the current; the first contact component 325 and the second contact component 326 provide contact charging operation for the first power supply component 323 after the moving piston component 31 is reset.

[0082] Reference Figure 10 , Figure 11 As shown, one aspect of the present invention also provides a multi-pressurized pneumatic-hydraulic booster cylinder, wherein the pneumatic-hydraulic assembly further includes a pneumatic-hydraulic booster unit, wherein the pneumatic-hydraulic booster unit includes a third electromagnet 140, a fourth electromagnet 141, a second power supply component 142, a second rotating component 143, a third contact component 144, and a fourth contact component 145.

[0083] Among them, reference Figure 10 As shown, the third electromagnet 140 is mounted on the booster piston 130, and the fourth electromagnet 141 is mounted inside the booster cylinder 12; the second power supply component 142 is mounted inside the booster piston 130 and connected to the third electromagnet 140; during the booster stroke, the third electromagnet 140 and the fourth electromagnet 141 generate a repulsive force to increase the speed of the booster piston 130; during the return stroke, the third electromagnet 140 and the fourth electromagnet 141 generate an attractive force to increase the speed of the booster piston 130, achieving a rapid return stroke; the second rotating component 143 is mounted inside the booster piston 130 and connected to the third electromagnet 140.

[0084] Among them, reference Figure 10 As shown, the third contact 144 is installed at the end of the booster piston 130 near the fourth electromagnet and is connected to the second power supply unit 142; the fourth contact 145 is installed inside the booster cylinder 12 and is connected to an external power supply device; when the booster piston 130 is reset, the third contact 144 and the fourth contact 145 come into contact, and through the contact between the fourth contact 145 and the third contact 144, the power stored in the external power supply device is introduced into the second power supply unit 142 for charging.

[0085] By adopting the above technical solution, the air consumption of the pneumatic-hydraulic booster cylinder can be further reduced during operation by setting the third electromagnet 140 and the fourth electromagnet 141; the second power supply component 142 provides power to the third electromagnet 140; the second rotating component 143 drives the third electromagnet 140 to rotate, changing the connection between the positive and negative terminals of the power supply and the third electromagnet 140, thereby changing the magnetic poles of the third electromagnet 140 by changing the direction of the current; and the third contact component 144 and the fourth contact component 145 provide contact charging operation for the second power supply component 142 after the moving piston component 31 is reset.

[0086] Reference Figure 4 , Figure 5 , Figure 10 As shown, one aspect of the present invention also provides a multi-pressurized gas-liquid booster cylinder, wherein the liquid storage cylinder 30 is further provided with a gas distribution component 302.

[0087] Among them, reference Figure 4 As shown, one end of the gas distributor 302 is fixedly connected to the liquid storage cylinder 30 and at least partially passes through the inlet 301; the other end of the gas distributor 302 is at least partially inserted into the liquid storage cylinder 30 and has air holes 303, and a plurality of air holes 303 are arranged in an array along the axial direction of the gas distributor 302.

[0088] By adopting the above technical solution, the compressed air introduced by the air source is evenly introduced into the liquid storage cylinder 30 through the air hole 303 by the setting of the air distribution component 302, so as to avoid uneven compressed air entering the liquid storage cylinder 30, causing slight displacement of the moving piston component 31, resulting in leakage of the boosting liquid or contact between compressed air and boosting liquid.

[0089] Reference Figures 1-13 As shown, one aspect of the present invention also provides a method for operating a multi-pressurized gas-liquid booster cylinder. Using the aforementioned multi-pressurized gas-liquid booster cylinder, the method includes the following steps:

[0090] Step S1: By introducing a first preset gas into the forward cylinder 10, the first piston 11 is driven to move toward the workpiece to be processed, thereby bringing the workpiece into contact with the workpiece.

[0091] In step S1, specifically during the forward stroke of the pneumatic-hydraulic booster cylinder, compressed air from the air source is introduced into the second air port 102 by opening the first control valve 400 and the second speed regulating valve. The compressed air enters the first motion chamber 100 through the second air port 102, and the first piston 11 moves rapidly toward the workpiece to be processed and comes into contact with the workpiece. In this step, the first preset gas refers to the compressed air that enters from the second air port 102.

[0092] If the pneumatic-hydraulic booster cylinder is used to fix the workpiece, when the first piston 11 moves a preset distance, the compressed air from the air source is introduced into the first air port 101 for a preset time through the opening of the first control valve 400 and the first speed regulating valve, so as to provide a motion buffer for the first piston 11 and prevent the first piston 11 from moving too fast and outputting too much force, causing scratches on the workpiece.

[0093] Step S2: By introducing a second preset gas into the liquid storage cylinder 30, the moving piston 31 is driven to move towards the liquid outlet 300, and the boosting liquid is introduced into the liquid storage chamber 20. At the same time, the movement speed of the moving piston 31 is increased by the liquid storage pressurization unit.

[0094] In step S2, specifically during the pre-compression stroke of the gas-liquid booster cylinder, the third control valve 402 is opened to introduce compressed air from the air source into the air filter. The compressed air enters the inlet 301 through the air filter, and the moving piston 31 moves towards the outlet 300 of the liquid storage cylinder 30 under the action of the compressed air, squeezing the booster liquid into the liquid storage chamber 20. The second preset gas in this step refers to the compressed air that enters from the inlet 301.

[0095] At the same time, the first electromagnet is energized, and the first current is introduced into the second electromagnet. The repulsive force generated between the first electromagnet and the second electromagnet increases the movement speed of the moving piston 31 towards the liquid outlet 300 and provides pre-pressurization.

[0096] Step S3: By introducing a first preset gas into the booster cylinder 12, the second piston moves toward the first piston 11, and the second piston squeezes the booster liquid in the storage chamber 20, forming a high-pressure booster liquid that drives the first piston 11 to generate a booster stroke.

[0097] In step S3, specifically during the pressurization stroke of the gas-liquid booster cylinder, compressed air is introduced into the fourth air port 121 by opening the second control valve 401 and the fourth speed regulating valve. The compressed air is introduced into the second motion chamber through the fourth air port 121. Under the action of the compressed air, the second piston moves towards the first piston 11, thereby squeezing the booster liquid in the liquid storage chamber 20 through the second piston, increasing the pressure of the booster liquid to form a high-pressure booster liquid, which in turn drives the first piston 11 to achieve a large-stroke pressure output. Here, the first preset gas in this step refers to the compressed air that enters from the fourth air port 121.

[0098] At the same time, when the second piston moves toward the first piston 11, the fourth electromagnet 141 is energized, and the first current is introduced into the third electromagnet 140. The repulsive force generated between the third electromagnet 140 and the fourth electromagnet 141 increases the speed of the second piston moving toward the first piston 11.

[0099] Step S4: By introducing a third preset gas into the forward cylinder 10, the first piston 11 is driven to move towards the booster cylinder 12, and the first piston 11 is quickly reset. At the same time, the liquid storage and pressurization unit drives the moving piston 31 to move towards the input port 301, and the moving piston 31 is quickly reset. Simultaneously, by introducing the third preset gas into the booster cylinder 12, the second piston is driven to move towards the booster cylinder 12, and the second piston is quickly reset.

[0100] In step S4, specifically during the return stroke of the pneumatic-hydraulic booster cylinder, the first electromagnet is energized, and a second current is introduced into the second electromagnet. A suction force is generated between the first and second electromagnets, and / or, through the elasticity of the spring, the moving piston 31 is moved toward the input port 301, thus resetting the moving piston 31.

[0101] At the same time, by opening the first control valve 400 and the first speed regulating valve, compressed air is introduced into the first air port 101. The compressed air is introduced into the first motion chamber 100 through the first air port 101. The first piston 11 moves towards the booster cylinder 12 under the action of the compressed air, realizing rapid return.

[0102] Simultaneously, by opening the second control valve 401 and the third speed regulating valve, compressed air is introduced into the third air port 120. The compressed air is then introduced into the second motion chamber through the third air port 120. Under the action of the compression spring 133 and the compressed air, the second piston moves towards the booster cylinder 12, achieving rapid return. At the same time, the fourth electromagnet 141 is energized, introducing a second current into the third electromagnet 140. The attraction between the third electromagnet 140 and the fourth electromagnet 141 increases the speed of the second piston moving towards the booster cylinder 12.

[0103] In this step, the third preset gas refers to the compressed air that enters from the first air port 101 and the third air port 120.

[0104] Preferably, the method for moving the movable piston 31 toward the input port 301 is as follows:

[0105] Step S500: The attraction force generated between the first electromagnet and the second electromagnet drives the moving piston 31 to move towards the input port 301, so that the second contact 326 abuts against the first contact 325.

[0106] In step S500, specifically when the moving piston 31 moves toward the input port 301, the first electromagnet is energized, and a second current is introduced into the second electromagnet. A suction force is generated between the first electromagnet and the second electromagnet, and / or, through the elasticity of the spring, the moving piston 31 moves toward the input port 301, and the moving piston 31 is reset.

[0107] After the movable piston 31 is reset, the second contact 326 and the first contact 325 come into contact with each other.

[0108] Step S501: External power enters the first contact 325 via the second contact 326, and is then introduced to the first power supply unit 323 via the first contact 325.

[0109] In step S501, specifically after the second contact 326 comes into contact with the first contact 325, external power enters the first contact 325 through the second contact 326, and is then conducted to the first power supply unit 323 through the first contact 325 to charge the first power supply unit 323.

[0110] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A multi-pressurized pneumatic-hydraulic booster cylinder, characterized in that, include: A gas-liquid assembly includes a forward cylinder, a first piston, a booster cylinder, and a second piston. The forward cylinder has a first moving chamber, the first piston is installed in the first moving chamber, and both ends of the first piston pass through the forward cylinder. The booster cylinder has a second moving chamber, and the second piston is at least partially inserted into the second moving chamber. A working hydraulic cylinder body is installed between a forward cylinder body and a booster cylinder body, and the working hydraulic cylinder body is provided with a liquid storage chamber and a liquid injection port, the liquid injection port being connected to the liquid storage chamber; An oil storage assembly includes a storage cylinder, a movable piston, and a storage pressurization unit. The storage cylinder stores a boosting liquid and has an outlet and an inlet, with the outlet connected to an injection port. The movable piston is installed inside the storage cylinder. The storage pressurization unit includes a first pressurizing component and a second pressurizing component. The first pressurizing component is installed inside the storage cylinder, and the second pressurizing component is installed on the movable piston. The second pressurizing component, in cooperation with the first pressurizing component, provides pressurization to the boosting liquid in the storage cylinder. as well as The control component includes a first controller and a second controller. The first controller is connected to the forward cylinder, the booster cylinder, the working hydraulic cylinder, and the reservoir, respectively. The second controller is connected to the first controller and the reservoir pressurization unit, respectively. The first pressurizing component uses a first electromagnet, and the second pressurizing component uses a second electromagnet. The first electromagnet is installed inside the liquid storage tank, and the second electromagnet is installed on the moving piston component. The liquid storage and pressurization unit also includes a telescopic connecting rod, a first power supply component, and a first rotating component. The two ends of the telescopic connecting rod are respectively connected to the movable piston component and the liquid storage cylinder. The telescopic connecting rod can provide wiring for the power supply line and reduce the movement and shaking of the movable piston component, thereby improving the operational stability of the movable piston component. The first power supply component is installed inside the movable piston component and is connected to the second electromagnet. The first rotating component is installed inside the movable piston component and is connected to the second electromagnet. The first rotating component drives the second electromagnet to rotate, changing the connection between the positive and negative terminals of the power supply and the second electromagnet, thereby changing the magnetic poles of the second electromagnet by changing the direction of the current. Specifically, the repulsive force generated between the first and second electromagnets increases the movement speed of the moving piston and provides pre-pressurization; the attractive force generated between the first and second electromagnets moves the moving piston towards the input port and resets the moving piston.

2. The multi-pressurized gas-liquid booster cylinder according to claim 1, characterized in that, The first piston assembly includes a forward piston, a first piston rod, and a second piston rod. The forward piston is installed in the first motion chamber. One end of the first piston rod is fixedly connected to the forward piston, and the other end of the first piston rod passes through the forward cylinder. One end of the second piston rod is fixedly connected to the forward piston, and the other end of the second piston rod is at least partially inserted into the liquid storage chamber.

3. The multi-pressurized gas-liquid booster cylinder according to claim 1, characterized in that, The second piston component includes a booster piston, a reservoir piston, and a third piston rod. The booster piston and the reservoir piston are installed in the second motion chamber. One end of the third piston rod is fixedly connected to the booster piston, and the other end of the third piston rod passes through the reservoir piston and is at least partially inserted into the reservoir chamber.

4. The multi-pressurized gas-liquid booster cylinder according to claim 3, characterized in that, The second piston component also includes a compression spring, which is installed between the booster piston and the reservoir piston, and the two ends of the compression spring respectively abut against the booster piston and the reservoir piston.

5. A multi-pressurized gas-liquid booster cylinder according to claim 1, characterized in that, The liquid storage and pressurization unit further includes a first contact and a second contact. The first contact is installed on the movable piston and connected to the first power supply. The second contact is installed inside the liquid storage tank and connected to an external power supply device. Through the contact between the second contact and the first contact, the power stored in the external power supply device is introduced into the first power supply device.

6. A multi-pressurized gas-liquid booster cylinder according to claim 1, characterized in that, The gas-liquid assembly further includes a gas-liquid boosting unit, which includes a third electromagnet, a fourth electromagnet, a second power supply component, and a second rotating component. The third electromagnet is mounted on the boosting piston, and the fourth electromagnet is mounted inside the boosting cylinder. The second power supply component is mounted inside the boosting piston and connected to the third electromagnet, and the second rotating component is mounted inside the boosting piston and connected to the third electromagnet.

7. A multi-pressurized gas-liquid booster cylinder according to claim 1, characterized in that, The liquid storage cylinder is also provided with a gas distribution component. One end of the gas distribution component is fixedly connected to the liquid storage cylinder and at least partially passes through the inlet. The other end of the gas distribution component is at least partially inserted into the liquid storage cylinder and has air holes. Several air holes are arranged in an array along the axial direction of the gas distribution component.

8. A multi-pressurized gas-liquid booster cylinder according to claim 7, characterized in that, The forward cylinder is provided with a first air port, and the working hydraulic cylinder is provided with a second air port. The first air port and the second air port are connected to the first moving chamber. The booster cylinder is provided with a third air port and a fourth air port. The third air port and the fourth air port are respectively connected to the second moving chamber.

9. A multi-pressurized gas-liquid booster cylinder according to claim 8, characterized in that, The first controller includes a first control valve, a second control valve, a third control valve, and an air filter. The first control valve is connected to a first air port and a second air port, the second control valve is connected to a third air port and a fourth air port, and the two ends of the air filter are connected to an air distribution component and the third control valve, respectively.

10. A method for operating a multi-pressurized gas-liquid booster cylinder, characterized in that, Using the multi-pressurized gas-liquid booster cylinder according to any one of claims 1-9, the method includes the following steps: Step S1: By introducing a first preset gas into the forward cylinder, the first piston is driven to move toward the workpiece to be processed, thereby bringing the workpiece into contact with the workpiece. Step S2: By introducing the first preset gas into the liquid storage cylinder, the moving piston is driven to move towards the liquid outlet, and the boosting liquid is introduced into the liquid storage chamber. At the same time, the movement speed of the moving piston is increased by the liquid storage pressurization unit. Step S3: By introducing a second preset gas into the booster cylinder, the second piston moves toward the first piston, thereby squeezing the booster liquid in the storage chamber through the second piston, forming a high-pressure booster liquid that drives the first piston to generate a booster stroke. Step S4: By introducing a third preset gas into the forward cylinder, the first piston is driven to move towards the booster cylinder, and the first piston is quickly reset. At the same time, the liquid storage and pressurization unit drives the moving piston to move towards the inlet, and the moving piston is quickly reset. Simultaneously, by introducing a third preset gas into the booster cylinder, the second piston is driven to move towards the booster cylinder, and the second piston is quickly reset.

11. The working method of a multi-pressurized gas-liquid booster cylinder according to claim 10, characterized in that, The second piston component includes a booster piston, and the gas-liquid assembly further includes a gas-liquid booster unit. The gas-liquid booster unit includes a third electromagnet and a fourth electromagnet. The third electromagnet is mounted on the booster piston, and the fourth electromagnet is mounted inside the booster cylinder. The method for driving the moving piston component and the second piston component to move is as follows: Step S50: When the moving piston moves toward the liquid outlet, a repulsive force is generated between the first electromagnet and the second electromagnet, increasing the speed of the moving piston. The moving piston then introduces the boosted liquid into the storage chamber. At the same time, the repulsive force between the first electromagnet and the second electromagnet provides pre-pressure to the first piston. Step S51: When the second piston moves toward the first piston, a repulsive force is generated between the third and fourth electromagnets, increasing the speed of the second piston. Step S52: When the moving piston and the second piston are reset, the moving piston is moved toward the input port by the attraction between the first electromagnet and the second electromagnet, and the second piston is moved toward the booster cylinder by the attraction between the third electromagnet and the fourth electromagnet.

12. The working method of a multi-pressurized gas-liquid booster cylinder according to claim 11, characterized in that, The liquid storage and pressurization unit also includes a first contact and a second contact. The first contact is mounted on the movable piston and connected to the first power supply. The second contact is mounted inside the liquid storage tank and connected to an external power supply device. The method for moving the movable piston towards the inlet is as follows: Step S500: The attraction force generated between the first electromagnet and the second electromagnet drives the moving piston to move towards the input port, so that the second contact member comes into contact with the first contact member; Step S501: External power enters the first contact via the second contact, and is then introduced to the first power supply unit through the first contact.

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