Hydraulic device of servo pump control and numerical control synchronous bending machine

Abstract

The utility model discloses a hydraulic device of a servo pump control and numerical control synchronous bending machine, and relates to the technical field of bending machines. The device comprises a base, a hydraulic cylinder is arranged at the top of the base, and a piston rod is installed at the output end of the bottom of the hydraulic cylinder. A protection assembly is arranged on the surface of the hydraulic cylinder and comprises a telescopic cover, the telescopic cover is arranged on the surface of the piston rod in a sleeving mode, and one side of the telescopic cover communicates with an air inlet pipe. Through the arrangement of the protection assembly, when oil is injected into the hydraulic cylinder to push the piston rod to move, the telescopic cover can be used for shielding the surface of the piston rod, dust generated in the machining process can be effectively prevented from covering the surface of the piston rod, the protection effect is achieved, and meanwhile the telescopic cover can be folded along with movement of the piston rod; and internal gas is compressed when the telescopic cover shrinks, the compressed gas is sprayed out through the gas spraying pipe, heat dissipation is conducted on the surface of the piston rod, and the influence of high temperature on the hydraulic cylinder is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of bending machine technology, and in particular relates to a hydraulic device for a servo pump-controlled CNC synchronous bending machine. Background Technology

[0002] The hydraulic system of a servo-pump-controlled CNC synchronous bending machine uses a servo motor to drive the hydraulic pump. By precisely controlling the flow rate and pressure, it achieves efficient and energy-saving operation of the hydraulic system. Compared to traditional hydraulic systems, the servo-pump control system can dynamically adjust the pump speed according to load requirements, reducing energy waste and improving system response speed and working accuracy. This system typically includes components such as a servo pump, hydraulic cylinder, and pressure sensor. The CNC system precisely controls the synchronous movement of the hydraulic cylinder, ensuring high precision and high efficiency when bending sheet metal. Servo-pump control technology can significantly reduce energy consumption and improve the stability and reliability of the equipment.

[0003] Current hydraulic devices for bending machines rely on the continuous injection and extraction of hydraulic fluid on both sides of the piston to achieve piston movement during operation. However, hydraulic oil is affected by ambient temperature. After prolonged operation, heat accumulates inside, causing the hydraulic oil viscosity to decrease, leading to seal leakage, increased system pressure fluctuations, and even hydraulic system failure. At the same time, when the piston moves out of the cylinder, dust and impurities easily adhere to the surface, increasing the friction generated by the piston rod movement and affecting the normal use of the equipment.

[0004] To address these issues, we provide a hydraulic device for a servo-pump-controlled CNC synchronous bending machine. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic device for a servo pump-controlled CNC synchronous bending machine. By combining protection components and heat dissipation components, the problem of heat accumulation inside the hydraulic device of the bending machine during operation, which leads to a decrease in the viscosity of the hydraulic oil, is solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a hydraulic device for a servo pump-controlled CNC synchronous bending machine, comprising a base, a hydraulic cylinder mounted on the top of the base, and a piston rod mounted on the bottom output end of the hydraulic cylinder; a protective assembly is provided on the surface of the hydraulic cylinder, the protective assembly including a telescopic cover, the telescopic cover being fitted onto the surface of the piston rod, an air inlet pipe connected to one side of the telescopic cover, an exhaust pipe connected to the rear side of the telescopic cover, and an air jet pipe connected to the other end of the exhaust pipe; a heat dissipation assembly is provided on the surface of the hydraulic cylinder, the heat dissipation assembly including heat-conducting fins mounted on the surface of the hydraulic cylinder, and a temperature-conducting pipe mounted on the surface of the hydraulic cylinder.

[0008] The present invention is further configured such that a first one-way valve is sleeved on the surface of the intake pipe, and a second one-way valve is sleeved on the surface of the exhaust pipe.

[0009] The present invention is further configured such that a bending mold is installed at the bottom of the piston rod, and the bottom of the telescopic cover is fixedly connected to the bending mold.

[0010] The present invention is further configured such that the other end of the exhaust pipe is connected to the temperature-conducting pipe, and a first solenoid valve is sleeved on the surface of the temperature-conducting pipe.

[0011] The present invention is further configured such that a second solenoid valve is fitted on the surface of the jet pipe, and the top of the telescopic cover is fixedly connected to the hydraulic cylinder.

[0012] The present invention is further configured such that a heater is installed inside the air intake pipe, a support shell is threadedly connected to the surface of the air intake pipe, and a metal filter screen is installed inside the support shell.

[0013] The present invention is further configured such that a bracket is mounted on the top of the hydraulic cylinder, and the bottom of the bracket is fixedly connected to the base.

[0014] The present invention is further configured such that a pressure oil pump is installed on the top of the bracket, a first oil pipe is connected between the oil outlet of the pressure oil pump and the hydraulic cylinder, and a second oil pipe is connected between the oil inlet of the pressure oil pump and the hydraulic cylinder.

[0015] The present invention has the following beneficial effects: By setting up the protective component, when the piston rod is moved by the injection of oil into the hydraulic cylinder, the surface of the piston rod can be shielded by the telescopic cover, which can effectively prevent the dust generated during the processing from covering the surface of the piston rod and play a protective role. At the same time, the telescopic cover can fold along with the movement of the piston rod, and the internal gas is compressed when the telescopic cover is contracted. The compressed gas is sprayed out through the jet pipe to dissipate heat from the surface of the piston rod and reduce the impact of high temperature on the hydraulic cylinder. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a perspective view of the hydraulic device of a servo pump-controlled CNC synchronous bending machine.

[0018] Figure 2 This is a cross-sectional view of the telescopic cover in the hydraulic device of a servo pump-controlled CNC synchronous bending machine.

[0019] Figure 3 A hydraulic device for a servo pump-controlled CNC synchronous bending machine Figure 2Rear view.

[0020] Figure 4 This is a partial sectional view of the air inlet pipe, support shell, and telescopic cover in the hydraulic device of a servo pump-controlled CNC synchronous bending machine.

[0021] In the attached diagram: 1. Base; 2. Hydraulic cylinder; 3. Piston rod; 4. Telescopic cover; 5. Inlet pipe; 6. Exhaust pipe; 7. Jet pipe; 8. Heat-conducting plate; 9. Temperature-conducting pipe; 10. First check valve; 11. Second check valve; 12. Bending die; 13. First solenoid valve; 14. Second solenoid valve; 15. Heater; 16. Support shell; 17. Metal filter screen; 18. Bracket; 19. Pressure oil pump; 20. First oil pipe; 21. Second oil pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0023] Please see Figure 1-4 This utility model relates to a hydraulic device for a servo pump-controlled CNC synchronous bending machine, comprising a base 1, a hydraulic cylinder 2 mounted on the top of the base 1, and a piston rod 3 mounted on the bottom output end of the hydraulic cylinder 2; a protective component is provided on the surface of the hydraulic cylinder 2, the protective component including a telescopic cover 4, the telescopic cover 4 being fitted onto the surface of the piston rod 3, an air inlet pipe 5 connected to one side of the telescopic cover 4, an exhaust pipe 6 connected to the rear side of the telescopic cover 4, and an air jet pipe 7 connected to the other end of the exhaust pipe 6; a heat dissipation component is provided on the surface of the hydraulic cylinder 2, the heat dissipation component including a heat-conducting plate 8, the heat-conducting plate 8 being mounted on the surface of the hydraulic cylinder 2, and a temperature-conducting pipe 9 being mounted on the surface of the hydraulic cylinder 2.

[0024] Specifically: The telescopic cover 4 is made of corrugated pipe material and has reinforcing steel wire installed inside. When the piston rod 3 moves, it can extend and completely cover the surface of the piston rod 3 to play a protective role. The front side of the jet pipe 7 is connected to multiple sets of nozzles, which can blow the compressed gas inside the telescopic cover 4 to the heat conduction plate 8 to improve the heat dissipation effect. The heat conduction plate 8 is installed on the surface of the hydraulic cylinder 2, which can increase the heat dissipation area of ​​the hydraulic cylinder 2 and further improve the heat dissipation effect. Example

[0025] Please see Figure 1-4Based on Embodiment 1, a first one-way valve 10 is fitted on the surface of the intake pipe 5, a second one-way valve 11 is fitted on the surface of the exhaust pipe 6, a bending die 12 is installed at the bottom of the piston rod 3, the bottom of the telescopic cover 4 is fixedly connected to the bending die 12, the other end of the exhaust pipe 6 is connected to the temperature guide pipe 9, a first solenoid valve 13 is fitted on the surface of the temperature guide pipe 9, a second solenoid valve 14 is fitted on the surface of the jet pipe 7, the top of the telescopic cover 4 is fixedly connected to the hydraulic cylinder 2, a heater 15 is installed inside the intake pipe 5, a support shell 16 is threadedly connected to the surface of the intake pipe 5, a metal filter screen 17 is installed inside the support shell 16, a bracket 18 is installed on the top of the hydraulic cylinder 2, the bottom of the bracket 18 is fixedly connected to the base 1, a pressure oil pump 19 is installed on the top of the bracket 18, a first oil pipe 20 is connected between the oil outlet of the pressure oil pump 19 and the hydraulic cylinder 2, and a second oil pipe 21 is connected between the oil inlet of the pressure oil pump 19 and the hydraulic cylinder 2.

[0026] Specifically: the first one-way valve 10 controls the flow direction of the air intake pipe 5, so that external gas can only enter the telescopic cover 4 in one direction; the second one-way valve 11 controls the flow direction of the exhaust pipe 6, so that the gas inside the telescopic cover 4 can only enter the exhaust pipe 6 in one direction; the first solenoid valve 13 can control the opening and closing of the temperature guide pipe 9; the second solenoid valve 14 can control the opening and closing of the jet pipe 7; the heater 15 can heat the air inside the air intake pipe 5; when the hydraulic cylinder 2 is cold-started, the heater 15 can be activated to preheat the gas input to the telescopic cover 4; after the first solenoid valve 13 is opened, hot air is injected into the temperature guide pipe 9 to preheat the hydraulic cylinder 2 and increase the fluidity of the oil.

[0027] The working principle of this utility model is as follows: when oil is injected into the hydraulic cylinder 2, it can push the piston rod 3 to move. The telescopic cover 4 is used to shield the surface of the piston rod 3, which can effectively prevent the dust generated during the processing from covering the surface of the piston rod 3 and play a protective role.

[0028] Simultaneously, the telescopic cover 4 can be deployed along with the piston rod 3. When the telescopic cover 4 is deployed, external air is drawn in using the air inlet pipe 5 and the first one-way valve 10. When the piston rod 3 moves upward, it compresses the telescopic cover 4. Gas is injected into the jet pipe 7 using the exhaust pipe 6 and the second one-way valve 11, and the compressed gas is ejected using the jet pipe 7 to dissipate heat from the hydraulic cylinder 2. At the same time, the heat-conducting plate 8 is used to increase the heat dissipation area of ​​the hydraulic cylinder 2, further improving the heat dissipation effect and reducing the impact of high temperature on the hydraulic cylinder 2, so that the hydraulic cylinder 2 can work continuously.

[0029] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A hydraulic device for a servo-pump-controlled CNC synchronous bending machine, comprising a base (1), characterized in that: A hydraulic cylinder (2) is provided on the top of the base (1), and a piston rod (3) is installed at the bottom output end of the hydraulic cylinder (2). The surface of the hydraulic cylinder (2) is provided with a protective component, which includes a telescopic cover (4). The telescopic cover (4) is sleeved on the surface of the piston rod (3). One side of the telescopic cover (4) is connected to an air inlet pipe (5), and the rear side of the telescopic cover (4) is connected to an exhaust pipe (6). The other end of the exhaust pipe (6) is connected to a jet pipe (7). The surface of the hydraulic cylinder (2) is provided with a heat dissipation component, which includes a heat-conducting plate (8). The heat-conducting plate (8) is installed on the surface of the hydraulic cylinder (2), and a temperature-conducting pipe (9) is installed on the surface of the hydraulic cylinder (2).

2. The hydraulic device of a servo pump-controlled CNC synchronous bending machine according to claim 1, characterized in that: The surface of the intake pipe (5) is fitted with a first one-way valve (10), and the surface of the exhaust pipe (6) is fitted with a second one-way valve (11).

3. The hydraulic device of a servo pump-controlled CNC synchronous bending machine according to claim 1, characterized in that: The bottom of the piston rod (3) is equipped with a bending mold (12), and the bottom of the telescopic cover (4) is fixedly connected to the bending mold (12).

4. The hydraulic device of a servo pump-controlled CNC synchronous bending machine according to claim 1, characterized in that: The other end of the exhaust pipe (6) is connected to the temperature-conducting pipe (9), and the surface of the temperature-conducting pipe (9) is fitted with a first solenoid valve (13).

5. The hydraulic device for a servo pump-controlled CNC synchronous bending machine according to claim 1, characterized in that: The surface of the jet pipe (7) is fitted with a second solenoid valve (14), and the top of the telescopic cover (4) is fixedly connected to the hydraulic cylinder (2).

6. The hydraulic device of a servo pump-controlled CNC synchronous bending machine according to claim 1, characterized in that: A heater (15) is installed inside the air intake pipe (5), and a support shell (16) is threaded onto the surface of the air intake pipe (5). A metal filter screen (17) is installed inside the support shell (16).

7. The hydraulic device of a servo pump-controlled CNC synchronous bending machine according to claim 1, characterized in that: The top of the hydraulic cylinder (2) is equipped with a bracket (18), and the bottom of the bracket (18) is fixedly connected to the base (1).

8. The hydraulic device of a servo pump-controlled CNC synchronous bending machine according to claim 7, characterized in that: A pressure oil pump (19) is installed on the top of the bracket (18). The oil outlet of the pressure oil pump (19) is connected to the hydraulic cylinder (2) by a first oil pipe (20), and the oil inlet of the pressure oil pump (19) is connected to the hydraulic cylinder (2) by a second oil pipe (21).

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