Energy-saving hydraulic drive structure for strip stamping

Abstract

This utility model discloses an energy-saving hydraulic drive structure for strip stamping, specifically relating to the field of hydraulic drive structures. It includes a lower die and an upper die positioned above it. Multiple sets of guide pillars are provided on the surface of the lower die. The upper die is movably mounted on the surface of the guide pillars. A top plate is provided at the top of the guide pillars, and a hydraulic device is provided at the top of the top plate. A stamping column is provided at the power end of the hydraulic device, passing through the top plate and fixedly connected to the upper die. The hydraulic mechanism includes a pump body and an oil tank, with four oil pipes connecting the oil tank and the pump body. A suction check valve is installed inside the four oil pipes, and a filling valve is provided between the suction check valve and the pump body. This utility model utilizes the upper die's own weight for descent during the rapid descent phase and automatically replenishes oil using the filling valve, reducing the continuous oil supply of the hydraulic pump and lowering energy consumption. Simultaneously, during the deceleration phase of the upper die, an accumulator recovers the energy generated by the rapid descent of the upper die, and the recovered energy is released for reuse when needed.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic drive structures, and more specifically, to an energy-saving hydraulic drive structure for strip steel stamping. Background Technology

[0002] In the strip steel processing industry, stamping is a common processing step used to process strip steel into parts of various shapes and sizes. Currently, traditional hydraulic drive structures for strip steel stamping suffer from low energy efficiency during operation. For example, during the stamping process, the hydraulic system needs to continuously provide high pressure to drive the stamping die, but the demand for hydraulic oil and the pressure control method differ at different stages of the upper die's descent and ascent. However, traditional structures often use relatively simple control methods, which cannot be precisely adjusted according to actual working conditions, resulting in energy waste in some stages.

[0003] Specifically, during strip stamping, in the rapid descent phase of the upper die, traditional structures typically rely on a hydraulic pump to continuously supply oil to propel the upper die downward, failing to fully utilize the upper die's own gravity for rapid descent, resulting in unnecessary energy consumption. Simultaneously, during the deceleration and ascent phases of the upper die, there is no effective energy recovery and reuse mechanism, causing the energy generated during stamping to be wasted. Furthermore, traditional hydraulic drive structures also have certain shortcomings in control precision and response speed, making it difficult to meet the requirements of modern strip processing for high efficiency, energy saving, and high precision.

[0004] Therefore, an energy-saving hydraulic drive structure based on strip stamping is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an energy-saving hydraulic drive structure for strip stamping, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving hydraulic drive structure for strip steel stamping, comprising a lower die and an upper die disposed above it. The surface of the lower die is provided with multiple sets of guide pillars, and the upper die is movably disposed on the surface of the guide pillars. A top plate is provided at the top of the multiple sets of guide pillars, and a hydraulic device is provided at the top of the top plate. A stamping column is provided at the power end of the hydraulic device, and the stamping column passes through the top plate and is fixedly connected to the upper die. The hydraulic mechanism includes a pump body and an oil tank, with an oil pipe four between the oil tank and the pump body. An oil suction check valve is provided inside the oil pipe four, and a filling valve is provided between the oil suction check valve and the pump body.

[0007] Preferably, the pump body is provided with an oil pipe, and an oil drain check valve is provided inside the oil pipe. The end of the oil pipe away from the pump body is connected to the middle part of the oil pipe.

[0008] Preferably, one end of the second oil pipe is connected to the hydraulic cylinder, and the other end of the second oil pipe is connected to the third oil tank.

[0009] Preferably, an oil drain valve is provided inside the oil pipe.

[0010] Preferably, a movable plate is movably arranged inside the hydraulic cylinder, and a counterweight is provided at the top of the movable plate. The movable plate and the hydraulic rod are sealed together.

[0011] Preferably, the surface of the upper mold is provided with an encoder, which is used to monitor the position information of the upper mold in real time and feed it back to the control system set inside the hydraulic equipment.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] Compared with existing technologies, this invention utilizes the weight of the upper mold during its rapid descent phase and employs an automatic oil replenishment valve to reduce the continuous oil supply from the hydraulic pump, thereby lowering energy consumption. Simultaneously, during the upper mold deceleration phase, an accumulator recovers the energy generated by the rapid descent and releases it for reuse when needed, achieving efficient energy recycling and significantly improving energy efficiency. Furthermore, the hydraulic drive structure of this device can rationally distribute the flow and pressure of the hydraulic oil, reducing impact and wear in the hydraulic system, lowering the equipment failure rate, extending the equipment's service life, and reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 for Figure 1 The diagram shows the structure from the main viewpoint.

[0016] Figure 3 This is a schematic diagram of the structure of the hydraulic equipment of this utility model.

[0017] The attached diagram is labeled as follows: 1. Lower mold; 2. Upper mold; 3. Top plate; 4. Guide column; 5. Hydraulic equipment; 6. Stamping column; 7. Pump body; 8. Oil discharge check valve; 9. Oil suction check valve; 10. Oil tank; 11. Oil pipe one; 12. Oil pipe two; 13. Oil pipe three; 14. Oil pipe four; 15. Oil drain valve; 16. Hydraulic cylinder; 17. Counterweight; 18. Filling valve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] As attached Figures 1 to 3 The diagram shows an energy-saving hydraulic drive structure for strip stamping, comprising a lower die 1 and an upper die 2 disposed above it. The surface of the lower die 1 is provided with multiple sets of guide pillars 4. The upper die 2 is movably disposed on the surface of the guide pillars 4. The top of the multiple sets of guide pillars 4 is provided with a top plate 3. The top of the top plate 3 is provided with a hydraulic device 5. The power end of the hydraulic device 5 is provided with a stamping column 6. The stamping column 6 passes through the top plate 3 and is fixedly connected to the upper die 2. The hydraulic mechanism includes a pump body 7 and an oil tank 10. There is an oil pipe 14 between the oil tank 10 and the pump body 7. An oil suction check valve 9 is provided inside the oil pipe 14. A filling valve 18 is provided between the oil suction check valve 9 and the pump body 7.

[0020] Specifically: By utilizing the weight of the upper mold 2 during its rapid descent phase and automatically replenishing oil using the filling valve 18, the continuous oil supply from the hydraulic pump is reduced, thus lowering energy consumption. Simultaneously, during the deceleration phase of the upper mold 2, an accumulator is used to recover the energy generated by its rapid descent, and the recovered energy is released for reuse when needed, achieving efficient energy recycling and greatly improving energy utilization. Because the hydraulic drive structure of this device can rationally distribute the flow and pressure of hydraulic oil, it reduces the impact and wear of the hydraulic system, lowers the equipment failure rate, extends the service life of the equipment, and reduces maintenance costs.

[0021] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with reference to the specific working method described in detail:

[0022] like Figures 1 to 3 As shown, in a preferred embodiment, the pump body 7 is provided with an oil pipe 11, and an oil discharge check valve 8 is provided inside the oil pipe 11. The end of the oil pipe 11 away from the pump body 7 is connected to the middle part of the oil pipe 12.

[0023] like Figures 1 to 3 As shown, in a preferred embodiment, one end of the second oil pipe 12 is connected to the hydraulic cylinder 16, and the other end of the second oil pipe 12 is connected to the oil tank 10. Furthermore, the hydraulic equipment 5 is connected through the first oil pipe 11, the second oil pipe 12, the third oil pipe 13, and the fourth oil pipe 14 so that the hydraulic equipment 5 can operate normally.

[0024] like Figures 1 to 3As shown, in a preferred embodiment, an oil drain valve 15 is provided inside the oil pipe 13. Further, the oil inside the oil pipe is drained through the oil drain valve 15 so as to perform maintenance on the hydraulic equipment 5.

[0025] like Figures 1 to 3 As shown, in a preferred embodiment, a movable plate is movably arranged inside the hydraulic cylinder 16, and a counterweight 17 is provided at the top of the movable plate. The movable plate and the hydraulic rod are sealed together.

[0026] like Figures 1 to 3 As shown, in a preferred embodiment, an encoder is provided on the surface of the upper die 2. The encoder is used to monitor the position information of the upper die 2 in real time and feed it back to the control system inside the hydraulic equipment 5. Furthermore, the encoder provided on the surface of the upper die 2 can ensure the smoothness and accuracy of the movement of the upper die 2 during the stamping process, reduce the vibration and impact during the stamping process, improve the accuracy and quality of strip stamping, and reduce the scrap rate.

[0027] The working process of this utility model is as follows:

[0028] When this utility model is in use, the upper mold 2 descends by its own weight during the rapid descent phase, and the filling valve 18 automatically draws in and replenishes oil, reducing the continuous oil supply of the hydraulic pump and lowering energy consumption. At the same time, during the deceleration phase of the upper mold 2, the energy generated by the rapid descent of the upper mold 2 is recovered by the accumulator, and the recovered energy is released for reuse when needed, realizing the efficient recycling of energy and greatly improving the energy utilization rate.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy-saving hydraulic drive structure for strip stamping, comprising a lower die (1) and an upper die (2) disposed above it, characterized in that, The lower mold (1) is provided with multiple sets of guide pillars (4) on its surface. The upper mold (2) is movably disposed on the surface of the guide pillars (4). The top of the multiple sets of guide pillars (4) is provided with a top plate (3). The top of the top plate (3) is provided with a hydraulic device (5). The power end of the hydraulic device (5) is provided with a stamping column (6). The stamping column (6) passes through the top plate (3) and is fixedly connected to the upper mold (2). The hydraulic mechanism includes a pump body (7) and an oil tank (10). There is an oil pipe (14) between the oil tank (10) and the pump body (7). An oil suction check valve (9) is provided inside the oil pipe (14). A filling valve (18) is provided between the oil suction check valve (9) and the pump body (7).

2. The energy-saving hydraulic drive structure for strip stamping according to claim 1, characterized in that: The pump body (7) is provided with an oil pipe (11), and an oil drain check valve (8) is provided inside the oil pipe (11). The end of the oil pipe (11) away from the pump body (7) is connected to the middle part of the oil pipe (12).

3. The energy-saving hydraulic drive structure for strip stamping according to claim 2, characterized in that: One end of the second oil pipe (12) is connected to the hydraulic cylinder (16), and the other end of the second oil pipe (12) is connected to the oil tank (10).

4. The energy-saving hydraulic drive structure for strip stamping according to claim 3, characterized in that: The oil pipe 3 (13) is equipped with an oil drain valve (15).

5. The energy-saving hydraulic drive structure for strip stamping according to claim 3, characterized in that: The hydraulic cylinder (16) has a movable plate inside, and a counterweight (17) is provided at the top of the movable plate. The movable plate and the hydraulic rod are sealed together.

6. The energy-saving hydraulic drive structure for strip stamping according to claim 1, characterized in that: The surface of the upper mold (2) is provided with an encoder, which is used to monitor the position information of the upper mold (2) in real time and feed it back to the control system set inside the hydraulic equipment (5).

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