Hydraulic machine with hydraulic pressurizing function

Abstract

The invention discloses a hydraulic machine with a hydraulic pressurization function, and relates to the technical field of hydraulic machines, the hydraulic machine comprises a main cylinder body, a pressurization cylinder body and an oil tank assembly, the pressurization cylinder body is fixedly installed on the lower end face of the main cylinder body, and the oil tank assembly is fixedly installed on the side wall of the main cylinder body; the oil tank assembly comprises an exhaust pipe, an air suction pipe, a rotary disc, a second sealing push plate and a first sealing push plate, the exhaust pipe and the air suction pipe are symmetrically and fixedly inserted into the side wall of the tank body, a first telescopic pipe is fixedly installed on the upper end face of the exhaust pipe, a fourth telescopic pipe is fixedly installed on the lower end face of the exhaust pipe, and a second telescopic pipe is fixedly installed on the upper end face of the air suction pipe; the hydraulic machine has the advantages that normal work of the hydraulic machine can be achieved through one box body, it is guaranteed that oil pressures on the two sides of the first piston and the second piston are the same, and damage caused by deformation due to different pressures on the two sides is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic presses, and specifically relates to a hydraulic press with a hydraulic boosting function. Background Art

[0002] A hydraulic press consists of a cylinder block, a piston, end covers, a piston rod and an oil tank, and is widely used in the manufacturing field for operations such as metal bending, stamping, forging, etc.;

[0003] The inventor found through long-term market research and investigation that during the use of traditional hydraulic presses, two oil tanks are respectively connected to the upper and lower ends of the cylinder block to supply liquid to provide power for the piston. The installation positions of the oil tanks are scattered and occupy a large space, and the power provided by each oil tank is also different, which will lead to uneven forces on both sides of the piston and cause the piston to deform easily.

[0004] Therefore, we propose a hydraulic press with a hydraulic boosting function to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a hydraulic press with a hydraulic boosting function to solve the problem that "during the use of traditional hydraulic presses, two oil tanks are respectively connected to the upper and lower ends of the cylinder block to supply liquid to provide power for the piston. The installation positions of the oil tanks are scattered and occupy a large space, and the power provided by each oil tank is also different, which will lead to uneven forces on both sides of the piston and cause the piston to deform easily".

[0006] To achieve the above purpose, the present invention provides the following technical solution: A hydraulic press with a hydraulic boosting function includes a main cylinder block, a boosting cylinder block and an oil tank assembly. The boosting cylinder block is fixedly installed on the lower end face of the main cylinder block, and the oil tank assembly is fixedly installed on the side wall of the main cylinder block;

[0007] The oil tank assembly includes an exhaust pipe, an intake pipe, a turntable, a second sealing push plate and a first sealing push plate. The exhaust pipe and the intake pipe are symmetrically and fixedly inserted into the side wall of the box body. The upper end face of the exhaust pipe is fixedly installed with a first telescopic pipe, the lower end face of the exhaust pipe is fixedly installed with a fourth telescopic pipe, the upper end face of the intake pipe is fixedly installed with a second telescopic pipe, and the lower end face of the intake pipe is fixedly installed with a third telescopic pipe. The upper end faces of the second telescopic pipe and the first telescopic pipe are jointly fixedly installed on the second sealing push plate, and the lower end faces of the third telescopic pipe and the fourth telescopic pipe are jointly fixedly installed on the first sealing push plate. The turntable is rotatably installed on the inner wall of the box body, a rotating shaft is fixedly installed at the edge of the side wall of the turntable, a second push rod is rotatably installed on the rotating shaft, a first push rod is rotatably installed on the rotating shaft, and the second push rod and the first push rod are arranged alternately.

[0008] As a further solution of the present invention: one end of the No. 2 push rod away from the rotating shaft is rotatably installed on the side wall of the No. 2 sealing push plate, and the No. 2 sealing push plate is vertically sealed and slidably connected in the box body; one end of the No. 1 push rod away from the rotating shaft is rotatably installed on the side wall of the No. 1 sealing push plate, and the No. 1 sealing push plate is vertically sealed and slidably installed in the box body; the upper end of the box body is connected with the main cylinder body through the No. 1 connecting pipe, and the lower end of the oil tank assembly is connected with the main cylinder body through the No. 2 connecting pipe.

[0009] As a further solution of the present invention: a No. 1 piston is sealingly and slidingly installed in the main cylinder body, a No. 1 piston rod is fixedly installed at the lower end of the No. 1 piston, a No. 2 piston is fixedly installed at the lower end of the No. 1 piston rod, the No. 2 piston is sealingly and slidingly connected to the booster cylinder body, a No. 2 piston rod is fixedly installed at the lower end of the No. 2 piston, and a pressure plate is fixedly installed at the lower end of the No. 2 piston rod.

[0010] As a further solution of the present invention: a reduction assembly is arranged on the side wall of the oil tank assembly, and the reduction assembly includes a mounting plate, a servo motor and a reduction gear box. The reduction gear box is fixedly mounted on the side wall of the oil tank assembly through the mounting plate. A servo motor is arranged on the upper end surface of the reduction gear box. The output end of the servo motor is fixedly connected to the input end of the reduction gear box. The output end of the reduction gear box passes through the side wall of the oil tank assembly and is fixedly mounted at the center of the turntable.

[0011] As a further solution of the present invention: the ends of the exhaust pipe opposite to the intake pipe are both connected to the outside world, a No. 1 one-way exhaust valve is fixedly installed on the upper end surface of the exhaust pipe, and the No. 1 one-way exhaust valve is connected to a No. 1 telescopic pipe, and a No. 2 one-way exhaust valve is fixedly installed on the lower end surface of the exhaust pipe, and the No. 2 one-way exhaust valve is connected to a No. 4 telescopic pipe.

[0012] As a further solution of the present invention: a No. 2 one-way air intake valve is fixedly installed on the upper end surface of the intake pipe, and the No. 2 one-way air intake valve is interconnected with the No. 2 telescopic tube; a No. 1 one-way air intake valve is fixedly installed on the lower end surface of the intake pipe, and the No. 1 one-way air intake valve is interconnected with the No. 3 telescopic tube.

[0013] As a further solution of the present invention: ventilation channels are opened in the No. 2 sealing push plate and the No. 1 sealing push plate, and the two ends of the upper ventilation channel are respectively connected to the No. 1 telescopic tube and the No. 2 telescopic tube, and the two ends of the lower ventilation channel are respectively connected to the No. 4 telescopic tube and the No. 3 telescopic tube.

[0014] As a further solution of the present invention: the second sealing push plate and the first sealing push plate are both inlaid with copper plates on their opposite sides, and one side of each of the copper plates is located in the ventilation channel.

[0015] As a further solution of the present invention: the upper end of the main cylinder body is installed with an end cover through fixing bolts.

[0016] As a further solution of the present invention: filters are provided on both the first connecting pipe and the second connecting pipe.

[0017] Adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, the turntable 808 drives the rotation of the rotating shaft 803, the rotating shaft 803 drives one end of the second push rod 806 and the first push rod 811 to rotate, so that the second push rod 806 and the first push rod 811 move up and down periodically, thereby enabling the second sealing push plate 812 and the first sealing push plate 805 to slide up and down reciprocally along the inner wall of the box body 801 periodically. The turntable drives the rotation of the rotating shaft, the rotating shaft drives one end of the second push rod and the first push rod to rotate, so that the second push rod and the first push rod move up and down periodically, thereby enabling the second sealing push plate and the first sealing push plate to slide up and down reciprocally along the inner wall of the box body periodically. The oil liquid above the second sealing push plate enters and exits the top end of the main cylinder body through the first connecting pipe, and the oil liquid below the first sealing push plate enters and exits the bottom end of the booster cylinder body through the second connecting pipe, enabling the first piston and the second piston to slide up and down along the main cylinder body and the booster cylinder body respectively. Using one box body can realize the normal operation of the hydraulic press, ensuring that the oil pressures on both sides of the first piston and the second piston are the same, and avoiding deformation and damage caused by different pressures on both sides.

[0019] 2. In the present invention, during the reciprocating movement of the first sealing push plate and the second sealing push plate, the second sealing push plate squeezes the second telescopic tube and the first telescopic tube, and the first sealing push plate squeezes the third telescopic tube and the fourth telescopic tube, so that air continuously sprays out from the port of the exhaust pipe, driving the flow of air around the main cylinder body and the booster cylinder body, promoting the heat dissipation of the hydraulic press. Moreover, the air in the air exchange channels between the second telescopic tube and the first telescopic tube and between the third telescopic tube and the fourth telescopic tube flows unidirectionally. When the air passes through the air exchange channels, it takes away the heat of the hydraulic oil absorbed by the copper plate, playing a good role in dissipating the heat of the hydraulic oil below the second piston and above the first piston.

[0020] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 2Schematic diagram of the main cylinder block and the supercharging cylinder block in Embodiment 1 of the present invention;

[0023] Figure 3 Schematic diagram of the fuel tank assembly and the deceleration assembly in Embodiment 1 of the present invention;

[0024] Figure 4 Internal structure schematic diagram of the fuel tank assembly in Embodiment 1 of the present invention;

[0025] Figure 5 Back sectional plan view of Embodiment 1 of the present invention;

[0026] Figure 6 Cross-sectional view of the fuel tank assembly in Embodiment 2 of the present invention;

[0027] Figure 7 Side sectional view of the fuel tank assembly in Embodiment 1 of the present invention;

[0028] Figure 8 Side sectional view of the fuel tank assembly in Embodiment 2 of the present invention.

[0029] In the figure: 1. No. 2 piston rod; 2. No. 2 piston; 3. No. 1 piston rod; 4. No. 1 piston; 5. Main cylinder block; 6. End cover; 7. No. 1 connecting pipe; 8. Fuel tank assembly; 9. No. 2 connecting pipe; 10. Pressure plate; 11. Supercharging cylinder block; 12. Deceleration assembly; 801. Box body; 802. No. 1 telescopic pipe; 803. Rotating shaft; 804. Exhaust pipe; 805. No. 1 sealing push plate; 806. No. 2 push rod; 807. No. 2 telescopic pipe; 808. Turntable; 809. Suction pipe; 810. No. 3 telescopic pipe; 811. No. 1 push rod; 812. No. 2 sealing push plate; 813. No. 1 one-way exhaust valve; 814. No. 2 one-way exhaust valve; 815. No. 4 telescopic pipe; 816. No. 1 one-way intake valve; 817. No. 2 one-way intake valve; 818. Ventilation passage; 819. Copper plate; 1201. Mounting plate; 1202. Servo motor; 1203. Reduction gearbox. Detailed implementation manners

[0030] The following further describes the detailed implementation manners of the present invention with reference to the accompanying drawings. It should be noted here that the description of these implementation manners is for helping to understand the present invention, but does not constitute a limitation to the present invention.

[0031] In addition, the technical features involved in the various implementation manners of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Embodiment 1. Please refer to the attached Figure 1 - attached Figure 7, A hydraulic press with a hydraulic boosting function, which is the first embodiment of the present invention. This embodiment cooperates the deceleration component 12 with the fuel tank component 8, and only one box body 801 can be used to realize the normal operation of the hydraulic press, and ensure that the oil pressures on both sides of the first piston 4 and the second piston 2 are the same, avoiding deformation and damage due to different pressures on both sides. It includes a main cylinder body 5, a boosting cylinder body 11 and a fuel tank component 8. The boosting cylinder body 11 is fixedly installed on the lower end face of the main cylinder body 5, and the fuel tank component 8 is fixedly installed on the side wall of the main cylinder body 5. The upper end of the main cylinder body 5 is installed with an end cover 6 through a fixing bolt;

[0033] Specifically, the fuel tank component 8 includes an exhaust pipe 804, an intake pipe 809, a turntable 808, a second sealing push plate 812 and a first sealing push plate 805. The exhaust pipe 804 and the intake pipe 809 are symmetrically and fixedly inserted into the side wall of the box body 801. The turntable 808 is rotatably installed on the inner wall of the box body 801. A rotating shaft 803 is fixedly installed at the edge of the side wall of the turntable 808. A second push rod 806 is rotatably installed on the rotating shaft 803. A first push rod 811 is rotatably installed on the rotating shaft 803. The second push rod 806 and the first push rod 811 are arranged staggeredly. One end of the second push rod 806 away from the rotating shaft 803 is rotatably installed on the side wall of the second sealing push plate 812. The second sealing push plate 812 is vertically and sealingly slidably connected in the box body 801. One end of the first push rod 811 away from the rotating shaft 803 is rotatably installed on the side wall of the first sealing push plate 805. The first sealing push plate 805 is vertically and sealingly slidably installed in the box body 801. The upper end of the box body 801 is internally connected to the main cylinder body 5 through a first connecting pipe 7. The lower end of the fuel tank component 8 is internally connected to the main cylinder body 5 through a second connecting pipe 9;

[0034] Among them, the turntable 808 drives the rotating shaft 803 to rotate, and the rotating shaft 803 drives one end of the second push rod 806 and the first push rod 811 to rotate, so that the second push rod 806 and the first push rod 811 move up and down periodically, so that the second sealing push plate 812 and the first sealing push plate 805 slide up and down reciprocally along the inner wall of the box body 801 periodically. The oil liquid above the second sealing push plate 812 enters and exits the top of the main cylinder body 5 through the first connecting pipe 7. The oil liquid below the first sealing push plate 805 enters and exits the bottom of the boosting cylinder body 11 through the second connecting pipe 9, so that the first piston 4 and the second piston 2 slide up and down along the main cylinder body 5 and the boosting cylinder body 11 respectively, realizing the normal operation of the hydraulic press. It can be completed with one box body 801, and ensure that the oil pressures on both sides of the first piston 4 and the second piston 2 are the same, avoiding deformation and damage due to different pressures on both sides;

[0035] Stainless steel mesh filters with a precision of 20μm are installed on both the first connecting pipe 7 and the second connecting pipe 9, near the outlet end of the fuel tank component 8. The filters are used to filter impurities in the hydraulic oil;

[0036] A first piston (4) is hermetically and slidably installed in the main cylinder block (5). A first piston rod (3) is fixedly installed at the lower end of the first piston (4). A second piston (2) is fixedly installed at the lower end of the first piston rod (3). The second piston (2) is hermetically and slidably connected with the booster cylinder block (11). A second piston rod (1) is fixedly installed at the lower end of the second piston (2). A pressing plate (10) is fixedly installed at the lower end of the second piston rod (1). The second piston (2) processes the workpiece through the pressing plate (10) at the lower end of the second piston rod (1). When the first piston (4) moves downward, the liquid below the first piston (4) enters the booster cylinder block (11). Since the inner diameter of the main cylinder block (5) is larger than that of the booster cylinder block (11), therefore, after the liquid in the main cylinder block (5) enters the booster cylinder block (11), the hydraulic pressure increases, and further the pressure on the second piston (2) increases, so that the instantaneous pressure of the second piston (2) on the pressing plate (10) through the second piston rod (1) increases, having a boosting function;

[0037] A speed reduction assembly (12) is arranged on the side wall of the fuel tank assembly (8). The speed reduction assembly (12) includes a mounting plate (1201), a servo motor (1202) and a speed reduction gearbox (1203). The speed reduction gearbox (1203) is fixedly installed on the side wall of the fuel tank assembly (8) through the mounting plate (1201). The servo motor (1202) is arranged on the upper end surface of the speed reduction gearbox (1203). The output end of the servo motor (1202) is fixedly connected with the input end of the speed reduction gearbox (1203). The output end of the speed reduction gearbox (1203) penetrates through the side wall of the fuel tank assembly (8) and is fixedly installed at the center of the turntable (808). The servo motor (1202) drives the speed reduction gearbox (1203) to work through the output end. The speed reduction gearbox (1203) drives the turntable (808) to rotate through the output end. The servo motor (1202) adjusts the rotation speed of the turntable (808) through the speed reduction gearbox (1203) to adapt to the hydraulic requirements under different working conditions. A sealing bearing is adopted at the connection between the output end and the turntable (808) to prevent oil leakage and ensure the normal operation of the fuel tank assembly (8).

[0038] Embodiment 2. Please refer to the attached Figure 4 - attached Figure 8 , which is the second embodiment of the present invention. In this embodiment, the first expansion pipe (802), the second expansion pipe (807), the third expansion pipe (810) and the fourth expansion pipe (815) are continuously ventilated through the ventilation channel (818), promoting the circulation of the surface air of the hydraulic press and avoiding damage due to overheating of the hydraulic press. Specifically, the first expansion pipe (802) is fixedly installed on the upper end surface of the exhaust pipe (804), the fourth expansion pipe (815) is fixedly installed on the lower end surface of the exhaust pipe (804), the second expansion pipe (807) is fixedly installed on the upper end surface of the suction pipe (809), the third expansion pipe (810) is fixedly installed on the lower end surface of the suction pipe (809), the upper end surfaces of the second expansion pipe (807) and the first expansion pipe (802) are jointly fixedly installed on the second sealing push plate (812), and the lower end surfaces of the third expansion pipe (810) and the fourth expansion pipe (815) are jointly fixedly installed on the first sealing push plate (805);

[0039] Among them, during the up-and-down reciprocating movement of the first sealing push plate 805 and the second sealing push plate 812, when the first sealing push plate 805 squeezes the fourth telescopic tube 815 and the third telescopic tube 810 upward, since the fourth telescopic tube 815 and the third telescopic tube 810 are interconnected through the air exchange channel 818, therefore, the air in the third telescopic tube 810 will enter the fourth telescopic tube 815 and flow out from the port of the exhaust pipe 804 together with the air in the fourth telescopic tube 815 after passing through the second one-way exhaust valve 814, driving the flow of the air around the main cylinder block 5 and the supercharging cylinder block 11, and promoting the heat dissipation of the hydraulic press;

[0040] The opposite ends of the exhaust pipe 804 and the intake pipe 809 are both connected to the outside. The upper end face in the exhaust pipe 804 is fixedly installed with a first one-way exhaust valve 813, and the first one-way exhaust valve 813 is connected to the first telescopic tube 802. The lower end face in the exhaust pipe 804 is fixedly installed with a second one-way exhaust valve 814, and the second one-way exhaust valve 814 is interconnected with the fourth telescopic tube 815. The upper end face in the intake pipe 809 is fixedly installed with a second one-way intake valve 817, and the second one-way intake valve 817 is interconnected with the second telescopic tube 807. The lower end face in the intake pipe 809 is fixedly installed with a first one-way intake valve 816, and the first one-way intake valve 816 is interconnected with the third telescopic tube 810. By setting the first one-way intake valve 816, the second one-way intake valve 817, the first one-way exhaust valve 813, and the second one-way exhaust valve 814, the air flows unidirectionally in the air exchange channel 818;

[0041] The air exchange channels 818 are provided in both the second sealing push plate 812 and the first sealing push plate 805. The two ends of the upper air exchange channel 818 are respectively connected to the first telescopic tube 802 and the second telescopic tube 807, and the two ends of the lower air exchange channel 818 are respectively connected to the fourth telescopic tube 815 and the third telescopic tube 810. Copper plates 819 are inlaid on the opposite sides of the second sealing push plate 812 and the first sealing push plate 805. One side of each copper plate 819 is located in the air exchange channel 818. The cross-sectional diameter of the air exchange channel 818 is 5 - 8 mm, and the inner wall is made of aluminum alloy. The thickness of the copper plate 819 is 2 mm, and the surface in contact with the hydraulic oil is nickel-plated to enhance the heat conduction efficiency. When the air passes through the air exchange channel 818, it takes away the heat of the hydraulic oil absorbed by the copper plate 819, playing a good role in dissipating the heat of the hydraulic oil below the second piston 2 and above the first piston 4, avoiding the deformation and damage of the piston caused by too high temperature of the hydraulic oil, and extending the service life of the piston;

[0042] Further illustrate the working mode and advantages of the device in combination with the existing technology:

[0043] First, in the process of using a traditional hydraulic press, two oil tanks are respectively connected to the upper and lower ends of the cylinder block to supply liquid to provide power for the piston. The installation positions of the oil tanks are scattered and occupy a large space, and the power provided by each oil tank is also different, which will cause uneven forces on both sides of the piston, and the piston is prone to deformation. In the present invention, the servo motor 1202 drives the reduction gearbox 1203 to rotate through the output end, the reduction gearbox 1203 drives the turntable 808 to rotate through the output end, the turntable 808 drives the rotating shaft 803 to rotate, and the rotating shaft 803 drives one end of the second push rod 806 and the first push rod 811 to rotate, so that the second push rod 806 and the first push rod 811 move up and down periodically, thereby enabling the second sealing push plate 812 and the first sealing push plate 805 to slide up and down reciprocally along the inner wall of the box body 801 periodically. The hydraulic fluid above the second sealing push plate 812 enters the top of the main cylinder body 5 through the first connecting pipe 7, and the hydraulic fluid below the first sealing push plate 805 enters the bottom of the booster cylinder body 11 through the second connecting pipe 9, enabling the first piston 4 and the second piston 2 to slide up and down along the main cylinder body 5 and the booster cylinder body 11 respectively, realizing the normal operation of the hydraulic press. Only one box body 801 is required to complete this, and it ensures that the oil pressures on both sides of the first piston 4 and the second piston 2 are the same, avoiding deformation and damage caused by uneven pressures on both sides of them.

[0044] Secondly, the second piston 2 processes the workpiece through the pressing plate 10 at the lower end of the second piston rod 1. When the first piston 4 moves downward, the liquid below the first piston 4 enters the booster cylinder body 11. Since the inner diameter of the main cylinder body 5 is larger than the inner diameter of the booster cylinder body 11, therefore, after the liquid in the main cylinder body 5 enters the booster cylinder body 11, the hydraulic pressure increases, and further the pressure on the second piston 2 increases, making the instantaneous pressure of the second piston 2 on the pressing plate 10 through the second piston rod 1 increase, having a boosting function;

[0045] Finally, when the first sealing push plate 805 moves upward to squeeze the fourth telescopic pipe 815 and the third telescopic pipe 810, since the fourth telescopic pipe 815 and the third telescopic pipe 810 are interconnected through the air exchange channel 818, therefore, the air in the third telescopic pipe 810 will enter the fourth telescopic pipe 815 and be ejected from the port of the exhaust pipe 804 together with the air in the fourth telescopic pipe 815 through the second one-way exhaust valve 814, driving the flow of the air around the main cylinder body 5 and the booster cylinder body 11, promoting the heat dissipation of this hydraulic press. When the first sealing push plate 805 moves downward, the fourth telescopic pipe 815 and the third telescopic pipe 810 reset, and the outside air enters the third telescopic pipe 810 through the first one-way intake valve 816, and then enters the fourth telescopic pipe 815 from the third telescopic pipe 810 through the air exchange channel 818. When the air passes through the surface of the copper plate 819 in the air exchange channel 818, it takes away the heat of the oil absorbed by the copper plate 819, playing a very good role in dissipating the heat of the hydraulic oil below the second piston 2 and the hydraulic oil above the first piston 4;

[0046] Similarly, when the second sealing push plate 812 moves upward, the outside air enters the second telescopic tube 807 through the suction pipe 809, and then enters the first telescopic tube 802 from the second telescopic tube 807 through the air exchange channel 818. When the second sealing push plate 812 moves downward, the air in the second telescopic tube 807 enters the first telescopic tube 802 through the air exchange channel 818 again, and finally is discharged through the first one-way exhaust valve 813 and ejected from the port of the exhaust pipe 804, driving the flow of the air around the main cylinder block 5 and the supercharging cylinder block 11, promoting the heat dissipation of the hydraulic press. When the air passes through the copper plate 819, it takes away the heat of the hydraulic oil absorbed by the copper plate 819, playing a very good role in dissipating the heat of the hydraulic oil above the first piston 4;

[0047] The fuel tank assembly 8 provided by the present invention is significantly different from the prior art, which is manifested as:

[0048] First, in the process of the reciprocating up and down movement of the first sealing push plate 805 and the second sealing push plate 812, the second sealing push plate 812 squeezes the second telescopic tube 807 and the first telescopic tube 802, and the first sealing push plate 805 squeezes the third telescopic tube 810 and the fourth telescopic tube 815, so that the port of the exhaust pipe 804 continuously ejects air flow, driving the flow of the air around the main cylinder block 5 and the supercharging cylinder block 11, promoting the heat dissipation of the hydraulic press. And the air in the air exchange channel 818 between the second telescopic tube 807 and the first telescopic tube 802 and the air in the air exchange channel 818 between the third telescopic tube 810 and the fourth telescopic tube 815 both flow unidirectionally. When the air passes through the air exchange channel 818, it takes away the heat of the hydraulic oil absorbed by the copper plate 819, playing a very good role in dissipating the heat of the hydraulic oil below the second piston 2;

[0049] Second, the present invention drives the rotation of the rotating shaft 803 through the turntable 808, and the rotating shaft 803 drives one end of the second push rod 806 and the first push rod 811 to rotate, so that the second push rod 806 and the first push rod 811 move up and down periodically, thereby making the second sealing push plate 812 and the first sealing push plate 805 slide up and down reciprocally along the inner wall of the box body 801 periodically. The hydraulic oil above the second sealing push plate 812 enters and exits the top of the main cylinder block 5 through the first connecting pipe 7, and the hydraulic oil below the first sealing push plate 805 enters and exits the bottom of the supercharging cylinder block 11 through the second connecting pipe 9, so that the first piston 4 and the second piston 2 slide up and down along the main cylinder block 5 and the supercharging cylinder block 11 respectively, realizing the normal operation of the hydraulic press. Using a single box body 801 can realize the normal operation of the hydraulic press, ensuring that the oil pressures on both sides of the first piston 4 and the second piston 2 are the same, and avoiding deformation and damage due to different pressures on both sides.

[0050] The above front, back, left, right, up, and down are all based on the Figure 1 in the attached drawings of the specification.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0052] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments.

[0053] For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A hydraulic press with a hydraulic boosting function, comprising a main cylinder (5), a boosting cylinder (11) and an oil tank assembly (8), characterized in that: The boost cylinder (11) is fixedly mounted on the lower end surface of the main cylinder (5), and the oil tank assembly (8) is fixedly mounted on the side wall of the main cylinder (5); The oil tank assembly (8) comprises an exhaust pipe (804), an intake pipe (809), a rotating disk (808), a second sealing push plate (812) and a first sealing push plate (805); the exhaust pipe (804) and the intake pipe (809) are symmetrically fixed and inserted into the side wall of the box body (801); a first telescopic pipe (802) is fixedly installed on the upper end surface of the exhaust pipe (804); a fourth telescopic pipe (815) is fixedly installed on the lower end surface of the exhaust pipe (804); a second telescopic pipe (807) is fixedly installed on the upper end surface of the intake pipe (809); a third telescopic pipe (810) is fixedly installed on the lower end surface of the intake pipe (809); The upper end surfaces of the No. 1 telescopic tube (807) and the No. 1 telescopic tube (802) are fixedly mounted on the No. 2 sealing push plate (812), and the lower end surfaces of the No. 3 telescopic tube (810) and the No. 4 telescopic tube (815) are fixedly mounted on the No. 1 sealing push plate (805). The turntable (808) is rotatably mounted on the inner wall of the box body (801), and a rotating shaft (803) is fixedly mounted on the edge of the side wall of the turntable (808). A No. 2 push rod (806) is rotatably mounted on the rotating shaft (803), and a No. 1 push rod (811) is rotatably mounted on the rotating shaft (803). The No. 2 push rod (806) and the No. 1 push rod (811) are staggered.

2. A hydraulic press with hydraulic boosting function according to claim 1, characterized in that: One end of the No. 2 push rod (806) away from the rotating shaft (803) is rotatably mounted on the side wall of the No. 2 sealing push plate (812), and the No. 2 sealing push plate (812) is vertically sealed and slidably connected in the box body (801). One end of the No. 1 push rod (811) away from the rotating shaft (803) is rotatably mounted on the side wall of the No. 1 sealing push plate (805), and the No. 1 sealing push plate (805) is vertically sealed and slidably mounted in the box body (801). The upper end of the box body (801) is connected to the main cylinder body (5) through the No. 1 connecting pipe (7), and the lower end of the oil tank assembly (8) is connected to the main cylinder body (5) through the No. 2 connecting pipe (9).

3. A hydraulic press with hydraulic boosting function according to claim 2, characterized in that: A No. 1 piston (4) is sealingly and slidably mounted in the main cylinder body (5), a No. 1 piston rod (3) is fixedly mounted at the lower end of the No. 1 piston (4), a No. 2 piston (2) is fixedly mounted at the lower end of the No. 1 piston rod (3), the No. 2 piston (2) is sealingly and slidably connected to the booster cylinder body (11), a No. 2 piston rod (1) is fixedly mounted at the lower end of the No. 2 piston (2), and a pressure plate (10) is fixedly mounted at the lower end of the No. 2 piston rod (1).

4. A hydraulic press with hydraulic boosting function according to claim 3, characterized in that: A reduction assembly (12) is arranged on the side wall of the oil tank assembly (8), and the reduction assembly (12) comprises a mounting plate (1201), a servo motor (1202) and a reduction gear box (1203). The reduction gear box (1203) is fixedly mounted on the side wall of the oil tank assembly (8) via the mounting plate (1201). The servo motor (1202) is arranged on the upper end surface of the reduction gear box (1203). The output end of the servo motor (1202) is fixedly connected to the input end of the reduction gear box (1203). The output end of the reduction gear box (1203) passes through the side wall of the oil tank assembly (8) and is fixedly mounted at the center of the turntable (808).

5. A hydraulic press with hydraulic boosting function according to claim 4, characterized in that: The ends of the exhaust pipe (804) and the air intake pipe (809) opposite to each other are both connected to the outside. A first one-way exhaust valve (813) is fixedly installed on the upper end surface of the exhaust pipe (804), and the first one-way exhaust valve (813) is connected to the first telescopic pipe (802). A second one-way exhaust valve (814) is fixedly installed on the lower end surface of the exhaust pipe (804), and the second one-way exhaust valve (814) is connected to the fourth telescopic pipe (815).

6. A hydraulic press with hydraulic boosting function according to claim 5, characterized in that: A No. 2 one-way air intake valve (817) is fixedly installed on the upper end surface of the air intake pipe (809), and the No. 2 one-way air intake valve (817) is interconnected with the No. 2 telescopic pipe (807). A No. 1 one-way air intake valve (816) is fixedly installed on the lower end surface of the air intake pipe (809), and the No. 1 one-way air intake valve (816) is interconnected with the No. 3 telescopic pipe (810).

7. A hydraulic press with hydraulic boosting function according to claim 6, characterized in that: The second sealing push plate (812) and the first sealing push plate (805) are both provided with ventilation channels (818), and the two ends of the upper ventilation channel (818) are respectively connected to the first telescopic tube (802) and the second telescopic tube (807), and the two ends of the lower ventilation channel (818) are respectively connected to the fourth telescopic tube (815) and the third telescopic tube (810).

8. The hydraulic press with hydraulic boosting function according to claim 7, characterized in that: The second sealing push plate (812) and the first sealing push plate (805) are both inlaid with copper plates (819) on their opposite sides, and one side of each copper plate (819) is located in the ventilation channel (818).

9. The hydraulic press with hydraulic boosting function according to claim 8, characterized in that: An end cover (6) is mounted on the upper end of the main cylinder body (5) via fixing bolts.

10. A hydraulic press with hydraulic boosting function according to claim 9, characterized in that: The first connecting pipe (7) and the second connecting pipe (9) are both provided with filters.

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