CN217990555U - Novel single high-pressure pump press - Google Patents
Novel single high-pressure pump press Download PDFInfo
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- CN217990555U CN217990555U CN202222131067.1U CN202222131067U CN217990555U CN 217990555 U CN217990555 U CN 217990555U CN 202222131067 U CN202222131067 U CN 202222131067U CN 217990555 U CN217990555 U CN 217990555U
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Abstract
The utility model discloses a novel single high-pressure pump press, which belongs to the technical field of presses and comprises an upper platform, a lower platform, a high-pressure pump and an oil tank, wherein a main oil cylinder and four auxiliary oil cylinders are arranged below the lower platform, and pistons of the main oil cylinder and the auxiliary oil cylinders are fixed on the lower surface of the lower platform; oil inlets of the main oil cylinder and the auxiliary oil cylinder are connected with the high-pressure pump through a three-position four-way control valve; four communicating ports of the three-position four-way control valve are respectively connected with the main oil cylinder, the auxiliary oil cylinder, the oil tank and the high-pressure pump, and the three-position four-way control valve controls the communicating conditions of the communicating ports through a first controller; and an oil inlet of the auxiliary oil cylinder is also connected with the oil tank through an electromagnetic push rod one-way valve. The utility model discloses only need the high-pressure pump can accomplish required work, saved space and cost, increased work efficiency, the power saving more.
Description
Technical Field
The utility model relates to a technical field of press especially relates to a novel single high-pressure pump press.
Background
The press machine (including punch press and hydraulic press) is a universal press machine with exquisite structure, and has the characteristics of wide application, high production efficiency and the like. The press machine can be widely applied to the processes of stamping, cutting, punching, blanking, bending, riveting, forming and the like. The metal is processed into parts by applying a strong pressure to the metal blank to cause plastic deformation and fracture of the metal. When the mechanical press works, a motor drives a large belt pulley (usually used as a flywheel) through a triangle belt, and a crank-slider mechanism is driven through a gear pair and a clutch, so that a slider and a male die move down linearly. After the forging and pressing work of the mechanical press is finished, the sliding block Cheng Shanghang is automatically disengaged, and meanwhile, an automatic device on a crankshaft is switched on, so that the sliding block stops near a top dead center.
The existing large-tonnage press machine is characterized in that a cylinder barrel is filled with oil by a low-pressure pump, and then is pressurized and filled with oil by a high-pressure pump, so that the press machine is driven to perform stamping and other work. Therefore, the existing press machine needs at least 1 to 2 high-power motors and more than 2 oil pumps to complete the work.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel single high-pressure pump press, it does not need the low-pressure pump, only needs the high-pressure pump can accomplish required work, has saved space and cost, has increased work efficiency, power saving more.
In order to achieve the purpose, the utility model provides a novel single high-pressure pump press machine, which comprises an upper platform, a lower platform, a high-pressure pump and an oil tank, wherein a main oil cylinder and four auxiliary oil cylinders are arranged below the lower platform, and pistons of the main oil cylinder and the auxiliary oil cylinders are fixed on the lower surface of the lower platform;
oil inlets of the main oil cylinder and the auxiliary oil cylinder are connected with the high-pressure pump through a three-position four-way control valve; four communication ports of the three-position four-way control valve are respectively connected with the main oil cylinder, the auxiliary oil cylinder, the oil tank and the high-pressure pump, and the communication condition of each communication port of the three-position four-way control valve is controlled by a first controller; and an oil inlet of the auxiliary oil cylinder is also connected with the oil tank through an electromagnetic push rod one-way valve.
In one or more embodiments, a hydraulic control check valve is arranged between the oil inlet of the auxiliary oil cylinder and the three-position four-way control valve, and the hydraulic control check valve is controlled by the first controller.
In one or more embodiments, when a workpiece is placed on the lower stage, the first controller is switched to a low-pressure-rise state, and the three-position four-way control valve is arranged to communicate the master cylinder with the high-pressure pump; when a workpiece is in contact with the upper platform, the first controller is switched to a high-pressure rising state, and the hydraulic control one-way valve is opened; when the novel single high-pressure pump press is finished, the first controller is switched to be in a pressure relief state, and the three-position four-way control valve is set to connect the main oil cylinder with the oil tank.
In one or more embodiments, the electromagnetic pushrod check valve includes a valve ball, a spring, and an electromagnetic pushrod; the spring and the electromagnetic push rod are respectively arranged on two sides of the valve ball.
In one or more embodiments, when the novel single high-pressure pump press is completed, the electromagnetic push rod pushes the valve ball to move, and then the electromagnetic push rod one-way valve is converted into a normally open state.
In one or more embodiments, the upper platform and the lower platform are both disposed on a column; the upper platform is fixed on the top of the upright post, and the lower platform is arranged below the upper platform and can move up and down along the upright post.
Compared with the prior art, according to the novel single high-pressure pump press machine, when a workpiece rises and before the workpiece is stamped, the auxiliary oil cylinder automatically absorbs oil under the action of vacuum, a motor and a low-pressure pump are not needed to work, and the motor and the low-pressure pump needed by the auxiliary oil cylinder are saved compared with the existing press machine; when the work such as punching press is accomplished, need not high-pressure pump and work, rely on the gravity of platform down can be with hydraulic oil transport mailbox, can save the electric energy.
Drawings
Fig. 1 is a schematic structural diagram of a novel single high-pressure pump press according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an electromagnetic push rod check valve according to an embodiment of the present invention.
Description of the main reference numbers:
1-upper platform, 2-lower platform, 3-main oil cylinder, 4-auxiliary oil cylinder, 5-upright post, 6-electromagnetic push rod one-way valve, 8-three-position four-way control valve, 9-high pressure pump, 10-oil tank, 11-workpiece, 12-first controller, 13-second controller, 14-hydraulic control one-way valve, 601-valve ball, 602-spring and 603-electromagnetic push rod.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 2, a novel single high-pressure pump press according to an embodiment of the present invention includes an upper platform 1, a lower platform 2, a column 5, a high-pressure pump 9, and an oil tank 10. The upper platform 1 and the lower platform 2 are both arranged on the upright post 5, the upper platform 1 is fixed at the top of the upright post 5, and the lower platform 2 is arranged below the upper platform 1 and can move up and down along the upright post 5. The high-pressure pump 9 is provided above the oil tank 10, and is capable of pumping hydraulic oil in the oil tank 10.
The lower platform 2 is provided with a main oil cylinder 3 and four auxiliary oil cylinders 4 below, the four auxiliary oil cylinders 4 are respectively arranged at the four corners of the lower platform 2, the main oil cylinder 3 is arranged at the center of the lower platform 2, and then uniform thrust can be provided when a workpiece is punched. The main oil cylinder 3 is arranged in the middle of the four auxiliary oil cylinders 4, and pistons of the main oil cylinder 3 and the auxiliary oil cylinders 4 are fixed on the lower surface of the lower platform 2, so that the lower platform 2 can be pushed to move upwards.
Oil inlets of the main oil cylinder 3 and the auxiliary oil cylinder 4 are connected with the high-pressure pump 9 through high-pressure oil pipes, so that hydraulic oil of the high-pressure pump 9 can be received, and the upward-pressure operation is realized. The high-pressure oil pipe is also provided with a three-position four-way control valve 8, and four communication ports of the three-position four-way control valve 8 are respectively connected with the main oil cylinder 3, the four auxiliary oil cylinders 4, the oil tank 10 and the high-pressure pump 9.
A pilot-controlled check valve 14 can be arranged between the oil inlet of the auxiliary oil cylinder 4 and the three-position four-way control valve 8, and is set to enable hydraulic oil to flow into the auxiliary oil cylinder 4 from the oil tank 10 in one direction only. The opening and closing of pilot operated check valve 14 is controlled by first controller 12. The hydraulic control one-way valve 14 can prevent hydraulic oil from impacting the three-position four-way control valve 8 when the lower platform 2 falls under the action of the silver gravity, and further prevent the three-position four-way control valve 8 from being damaged.
The three-position four-way control valve 8 controls the communication of each communication port thereof by a first controller 12. When a workpiece 12 is placed on the lower platform 2 and the lower platform 2 is raised at a low pressure, the first controller 12 can be switched to a low-pressure raising state, the three-position four-way control valve 8 is set to communicate the main oil cylinder 3 with the high-pressure pump 9, so that the high-pressure pump 9 can pump hydraulic oil into the main oil cylinder 3, the main oil cylinder rises to push the lower platform 2 to rise, the lower platform 2 further drives a piston of the auxiliary oil cylinder 4 to rise, and the auxiliary oil cylinder generates vacuum when the lower platform rises, and the electromagnetic push rod one-way valve 6 is opened to enable the auxiliary oil cylinder to feed oil; when the workpiece 12 is in contact with the upper platform 1 (working point) and the workpiece 12 is under a certain pressure (about 100-150 kpa), the first controller 12 can be switched to a high-pressure rising state, the hydraulic control one-way valve 14 is opened, hydraulic oil enters the main oil cylinder 3 and the auxiliary oil cylinder 4 at the same time, the three oil cylinders provide upward acting force for the lower platform 2 together, and the work such as punching is completed; when the work such as punching is finished, the first controller 12 can be switched to a pressure relief state, the three-position four-way control valve 8 is set to communicate the main oil cylinder 3 with the oil tank 10, and when the lower platform 2 falls due to the action of gravity, the hydraulic oil in the main oil cylinder 3 flows back to the oil tank 10 through the high-pressure oil pipe.
Oil inlets of the four auxiliary oil cylinders 4 are also directly connected with the oil tank 10 through electromagnetic push rod one-way valves 6, and the electromagnetic push rods 603 are controlled by a second controller 13.
The structure of the electromagnetic push rod check valve 6 is shown in fig. 2, which comprises a valve ball 601, a spring 602 and an electromagnetic push rod 603, wherein the valve ball 601 is used for sealing a flow passage in the electromagnetic push rod check valve 6, and the valve ball 601 is abutted against the electromagnetic push rod check valve 6 under the thrust of the spring 602, so that hydraulic oil in the electromagnetic push rod check valve can only flow from the oil tank side to the auxiliary oil cylinder side. The other side of the ball 601 with respect to the spring 602 is provided with an electromagnetic pushrod 603, and the electromagnetic pushrod 603 is controlled by the second controller 13 to push the ball 601 to move, thereby setting the electromagnetic pushrod check valve 6 in a normally open state.
When the hydraulic oil pump is in a high-pressure rising state, the second controller 13 does not control the electromagnetic push rod 603 to push the valve ball 601, and further the electromagnetic push rod check valve 6 is in a one-way conduction state, hydraulic oil in the oil tank 10 can only flow into the auxiliary oil cylinder 4 from the oil tank 10 in a one-way mode, namely when the lower platform 2 is in a low-pressure rising state, the main oil cylinder 3 pushes the lower platform 2 to rise, the lower platform 2 further drives a piston of the auxiliary oil cylinder 4 to rise, and under the action of the negative pressure in the auxiliary oil cylinder 4, the hydraulic oil is sucked into the auxiliary oil cylinder 4 from the oil tank 10 through the electromagnetic push rod check valve 6, so that a separate low-pressure pump is not needed to pump the hydraulic oil to the auxiliary oil cylinder 4. When the hydraulic oil tank is in a pressure relief state, the second controller 13 controls the electromagnetic push rod 603 to push the valve ball 601, and then the electromagnetic push rod check valve 6 is switched to a normally open state, so that when the lower platform 2 falls under the action of gravity, hydraulic oil in the auxiliary oil cylinder 4 can flow from the auxiliary oil cylinder side to the oil tank side.
The fluid passage between the electromagnetic push rod 603 and the electromagnetic push rod check valve 6 is sealed in a dynamic sealing mode, so that the fluid is prevented from flowing out.
The utility model discloses a novel single high-pressure pump press's operation flow as follows:
1. the workpiece 11 is placed on the lower stage 2.
2. The three-position four-way control valve 8 is switched into a state that the main oil cylinder 3 is communicated with the high-pressure pump 9 through the first controller 12; at this time, hydraulic oil is pumped to the main oil cylinder 3 through the high-pressure pump 9, so that the main oil cylinder 3 pushes the upper platform 2 to move upwards, and meanwhile, pistons of the four auxiliary oil cylinders 4 are driven to move upwards, and then the hydraulic oil is injected into the auxiliary oil cylinders 4 under the action of suction force. At the moment, the auxiliary oil cylinder 4 automatically absorbs oil under the action of vacuum, and a motor and a low-pressure pump are not needed to work, so that the motor and the low-pressure pump needed by the auxiliary oil cylinder 4 are saved compared with the existing press.
3. When the workpiece 12 is in contact with the upper platform 1, the three-position four-way control valve 8 is switched to a state that the main oil cylinder 3, the four auxiliary oil cylinders 4 and the high-pressure pump 9 are communicated through the first controller 12; at the moment, hydraulic oil is injected into the three oil cylinders through the high-pressure pump 9, and then the three oil cylinder pistons are used for realizing the work of stamping and the like, so that the work is stable.
4. When the work such as punching is finished, the three-position four-way control valve 8 is switched to a state of communicating the main oil cylinder 3 with the oil tank 10 through the first controller 12, and the electromagnetic push rod 603 is controlled by the second controller 13 to convert the electromagnetic push rod one-way valve 6 into a normally open state; at this time, the lower platform 2 moves downward by its own weight, so that the hydraulic oil in the main cylinder 3 flows into the tank 10 through the three-position four-way control valve 8, and the hydraulic oil in the sub-tank 4 flows into the tank 10 through the solenoid push rod check valve 6. Therefore, when the lower platform 2 descends, the high-pressure pump 9 is not needed to work, and electric energy is saved.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (6)
1. A novel single high-pressure pump press machine comprises an upper platform, a lower platform, a high-pressure pump and an oil tank, and is characterized in that a main oil cylinder and four auxiliary oil cylinders are arranged below the lower platform, and pistons of the main oil cylinder and the auxiliary oil cylinders are fixed on the lower surface of the lower platform;
oil inlets of the main oil cylinder and the auxiliary oil cylinder are connected with the high-pressure pump through a three-position four-way control valve; four communication ports of the three-position four-way control valve are respectively connected with the main oil cylinder, the auxiliary oil cylinder, the oil tank and the high-pressure pump, and the communication condition of each communication port of the three-position four-way control valve is controlled by a first controller; and an oil inlet of the auxiliary oil cylinder is also connected with the oil tank through an electromagnetic push rod one-way valve.
2. The novel single high-pressure pump press machine as claimed in claim 1, wherein a hydraulic control one-way valve is arranged between the oil inlet of the auxiliary oil cylinder and the three-position four-way control valve, and the hydraulic control one-way valve is controlled by the first controller.
3. The new single high pressure pump press as claimed in claim 2, wherein said first controller is switched to a low pressure rise state when a workpiece is placed on said lower platform, said three-position four-way control valve being arranged to communicate said master cylinder with said high pressure pump; when a workpiece is in contact with the upper platform, the first controller is switched into a high-pressure rising state, and the hydraulic control one-way valve is opened; when the novel single high-pressure pump press is finished, the first controller is switched to be in a pressure relief state, and the three-position four-way control valve is set to connect the main oil cylinder with the oil tank.
4. The novel single high pressure pump press as claimed in claim 1, wherein the electromagnetic pushrod check valve comprises a valve ball, a spring, and an electromagnetic pushrod; the spring and the electromagnetic push rod are respectively arranged on two sides of the valve ball.
5. The novel single high pressure pump press as claimed in claim 4, wherein when the novel single high pressure pump press is completed, the electromagnetic push rod pushes the valve ball to move, and the electromagnetic push rod one-way valve is further switched to a normally open state.
6. The new single hp pump press according to claim 1, wherein said upper platform and said lower platform are both disposed on a column; the upper platform is fixed on the top of the upright post, and the lower platform is arranged below the upper platform and can move up and down along the upright post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222131067.1U CN217990555U (en) | 2022-08-08 | 2022-08-08 | Novel single high-pressure pump press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222131067.1U CN217990555U (en) | 2022-08-08 | 2022-08-08 | Novel single high-pressure pump press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217990555U true CN217990555U (en) | 2022-12-09 |
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ID=84320820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222131067.1U Active CN217990555U (en) | 2022-08-08 | 2022-08-08 | Novel single high-pressure pump press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217990555U (en) |
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2022
- 2022-08-08 CN CN202222131067.1U patent/CN217990555U/en active Active
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