A follow-up control full hydraulic forging hammer hydraulic pressure stabilizing device

Abstract

The utility model relates to the field of forging technology discloses a follow -up control full -hydraulic forging hammer hydraulic oil pressure stabilizing device, including frame. The utility model discloses through the output of high -pressure variable displacement pump is fixed with forging hammer, makes forging hammer drive the sliding block sliding in the slide groove outer wall that the frame inside is set up, when the output limiting plate of auxiliary hydraulic cylinder is fixed, when forging hammer contacts the limiting plate surface after hammering, reduces the risk of scrap of forging and the hidden danger of equipment damage caused by the out -of -control of stroke, sets up the hydraulic pipe in high -pressure variable displacement pump and auxiliary hydraulic cylinder inside simultaneously, and high -pressure accumulator communicates with electro -hydraulic proportional valve through first hydraulic pipe, and electro -hydraulic proportional valve communicates with hydraulic pipe, when hydraulic oil pressure fluctuation, electro -hydraulic proportional valve adjusts flow, and high -pressure accumulator can timely absorb extra hydraulic oil or release reserve oil, can quickly damp pressure fluctuation under the double action, ensures that system pressure is always stable in the set range, thereby improved the processing quality of forging.

Description

Technical Field

[0001] This utility model relates to the field of forging technology, and in particular to a hydraulic oil pressure stabilization device for a fully hydraulic forging hammer with follow-up control. Background Technology

[0002] A fully hydraulic forging hammer is a heavy-duty forging device that uses hydraulic oil as the power transmission medium to achieve hammer head lifting and striking action. It is mainly used for hot or cold shaping of metal billets, such as forging, upsetting, punching, and drawing. It is widely used in machinery manufacturing, aerospace, automotive parts, shipbuilding and other fields. It relies on the pressure output by the hydraulic system to drive the hammer head movement. It can precisely adjust the striking force and striking frequency by controlling the pressure and flow of hydraulic oil to adapt to the forging needs of different materials and specifications.

[0003] In existing fully hydraulic forging hammer devices, the hydraulic cylinder may experience kinetic energy changes due to fluctuations in hydraulic oil, leading to unstable pressure. A sudden increase in pressure can overload the hammer's striking force, causing the forging dimensions to exceed tolerances. Conversely, a sudden drop in pressure results in insufficient striking force, preventing the forging from forming completely and requiring repeated hammering. This not only prolongs the production cycle but also increases the risk of defects such as surface scratches and oxide scale indentation due to surface friction and stress accumulation from repeated hammering. Furthermore, pressure fluctuations can cause uneven energy transfer when the hammer contacts the forging, easily leading to problems such as internal porosity and surface cracks in the forging, thus reducing the quality of the forging. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a follow-up control hydraulic oil pressure stabilization device for a fully hydraulic forging hammer.

[0005] This utility model is achieved by the following technical solution: a follow-up control hydraulic oil pressure stabilizing device for a fully hydraulic forging hammer, including a frame, a control panel fixedly connected to the outer wall of the frame, a pressure stabilizing component provided on the outer wall of the frame, and a protective component provided on the outer wall of the frame;

[0006] The pressure stabilizing component includes a chute, a slider slidably connected to the outer wall of the chute, a connecting block fixedly connected to the outer wall of the slider, a forging hammer fixedly connected to the outer wall of the connecting block, a high-pressure variable pump fixedly connected to the top of the forging hammer, a support frame fixedly connected to the outer wall of the high-pressure variable pump, an auxiliary hydraulic cylinder fixedly connected inside the support frame, a limit plate fixedly connected to the output end of the auxiliary hydraulic cylinder, a hydraulic pipe connected inside the auxiliary hydraulic cylinder, an electro-hydraulic proportional valve connected to the end of the hydraulic pipe away from the auxiliary hydraulic cylinder, a first hydraulic pipe connected to the end of the electro-hydraulic proportional valve away from the hydraulic pipe, and a high-pressure accumulator connected to the end of the first hydraulic pipe away from the electro-hydraulic proportional valve.

[0007] As a further improvement to the above solution, the chute is opened inside the frame, the support frame is fixedly connected to the top of the frame, the limiting plate is slidably connected to the outer wall of the chute, and the limiting plate is contacted at the bottom of the connecting block.

[0008] Through the above technical solution, hydraulic pipes are simultaneously connected inside the high-pressure variable pump and the auxiliary hydraulic cylinder. The high-pressure accumulator is connected to the electro-hydraulic proportional valve through the first hydraulic pipe, and the electro-hydraulic proportional valve is also connected to the hydraulic pipe. When the hydraulic oil pressure fluctuates, the electro-hydraulic proportional valve adjusts the flow rate, and the high-pressure accumulator can absorb excess hydraulic oil or release the reserve oil in time. Under the dual action, pressure fluctuations can be quickly suppressed, ensuring that the system pressure is always stable within the set range, thereby improving the processing quality of forgings.

[0009] As a further improvement to the above solution, the protective component includes a T-shaped sliding groove, which is formed on the outer wall of the frame.

[0010] As a further improvement to the above solution, a T-shaped sliding block is slidably connected to the outer wall of the T-shaped sliding groove, and a connecting plate is fixedly connected to the outer wall of the T-shaped sliding block.

[0011] As a further improvement to the above solution, a fixing block is fixedly connected to the outer wall of the connecting plate, and the fixing block is fixedly connected to the top of the forging hammer.

[0012] As a further improvement to the above solution, a sliding rod is slidably connected inside the connecting plate, and a spring is sleeved on the outer wall of the sliding rod.

[0013] As a further improvement to the above solution, a limiting piece is fixedly connected to the top of the sliding rod, and a protective net is fixedly connected to the end of the sliding rod away from the limiting piece.

[0014] Through the above technical solution, the protective net can move precisely and synchronously with the forging hammer, ensuring that the protective range always covers the forging area. During the forging process, because the protective net is higher than the workbench, it can preferentially form a physical barrier, effectively blocking the splashing of foreign objects such as metal chips and oxide scale generated during forging, fundamentally reducing the risk of operators being accidentally injured.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a high-pressure variable pump whose output end is fixed to a forging hammer. The forging hammer, via a connecting block, drives a slider to slide along the outer wall of a groove within the frame. A limiting plate is fixed at the output end of an auxiliary hydraulic cylinder. When the forging hammer contacts the surface of the limiting plate during hammering, the risk of forging scrap and equipment damage due to stroke loss is reduced. Hydraulic pipes are simultaneously connected inside the high-pressure variable pump and the auxiliary hydraulic cylinder. A high-pressure accumulator is connected to an electro-hydraulic proportional valve via a first hydraulic pipe. The electro-hydraulic proportional valve is also connected to the hydraulic pipes. When the hydraulic oil pressure fluctuates, the electro-hydraulic proportional valve adjusts the flow rate, and the high-pressure accumulator can promptly absorb excess hydraulic oil or release reserve oil. This dual action quickly smooths out pressure fluctuations, ensuring that the system pressure remains stable within the set range, thereby improving the processing quality of forgings.

[0017] This invention utilizes a fixed block to drive a connecting plate in sync with the movement of the forging hammer. This, combined with the stable sliding of a T-shaped sliding block along a T-shaped sliding groove, ensures the protective net moves precisely and synchronously with the forging hammer, guaranteeing that the protective area always covers the forging zone. During forging, the protective net, being higher than the worktable, preferentially forms a physical barrier, effectively blocking metal shavings, scale, and other foreign objects generated during forging, fundamentally reducing the risk of accidental injury to operators. When the protective net contacts the ground, the sliding rod slides within the connecting plate and compresses the spring, buffering the impact force upon contact to prevent damage from hard collisions. Furthermore, the spring's elastic potential energy automatically resets the protective net when the forging hammer lifts, eliminating the need for additional power and ensuring continuous protection. A limiting plate at the top of the sliding rod effectively prevents it from detaching from the connecting plate, ensuring the integrity and reliability of the protective structure. The overall design balances the timeliness and continuity of protection with structural durability, significantly improving the safety of forging operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the pressure stabilizing component structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0021] Figure 4 This is a schematic diagram of the high-voltage accumulator structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the protective component structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Frame; 2. Control panel; 3. Pressure stabilizing component; 301. Slide groove; 302. Slider; 303. Connecting block; 304. Forging hammer; 305. High-pressure variable pump; 306. Support frame; 307. Auxiliary hydraulic cylinder; 308. Limiting plate; 309. Hydraulic pipe; 310. Electro-hydraulic proportional valve; 311. First hydraulic pipe; 312. High-pressure accumulator; 4. Protective component; 401. T-shaped sliding groove; 402. T-shaped sliding block; 403. Connecting plate; 404. Fixing block; 405. Sliding rod; 406. Spring; 407. Limiting plate; 408. Protective net. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5 This embodiment provides a follow-up control hydraulic oil pressure stabilization device for a fully hydraulic forging hammer, including a frame 1, a control panel 2 fixedly connected to the outer wall of the frame 1, a pressure stabilization component 3 provided on the outer wall of the frame 1, and a protective component 4 provided on the outer wall of the frame 1.

[0028] The pressure stabilizing component 3 includes a slide 301, a slider 302 slidably connected to the outer wall of the slide 301, a connecting block 303 fixedly connected to the outer wall of the slider 302, a forging hammer 304 fixedly connected to the outer wall of the connecting block 303, a high-pressure variable pump 305 fixedly connected to the top of the forging hammer 304, a support frame 306 fixedly connected to the outer wall of the high-pressure variable pump 305, an auxiliary hydraulic cylinder 307 fixedly connected inside the support frame 306, a limit plate 308 fixedly connected to the output end of the auxiliary hydraulic cylinder 307, a hydraulic pipe 309 connected inside the auxiliary hydraulic cylinder 307, an electro-hydraulic proportional valve 310 connected to the end of the hydraulic pipe 309 away from the auxiliary hydraulic cylinder 307, a first hydraulic pipe 311 connected to the end of the electro-hydraulic proportional valve 310 away from the hydraulic pipe 309, and a high-pressure accumulator 312 connected to the end of the first hydraulic pipe 311 away from the electro-hydraulic proportional valve 310.

[0029] The slide 301 is opened inside the frame 1, the support frame 306 is fixedly connected to the top of the frame 1, the limiting plate 308 is slidably connected to the outer wall of the slide 301, and the limiting plate 308 is contacted at the bottom of the connecting block 303.

[0030] The high-pressure variable pump 305 and the auxiliary hydraulic cylinder 307 are connected by a hydraulic pipe 309. The high-pressure accumulator 312 is connected to the electro-hydraulic proportional valve 310 through the first hydraulic pipe 311. The electro-hydraulic proportional valve 310 is also connected to the hydraulic pipe 309. When the hydraulic oil pressure fluctuates, the electro-hydraulic proportional valve 310 adjusts the flow rate. The high-pressure accumulator 312 can absorb excess hydraulic oil or release the reserve oil in time. Under the dual action, the pressure fluctuation can be quickly suppressed to ensure that the system pressure is always stable within the set range, thereby improving the processing quality of the forgings.

[0031] The protective component 4 includes a T-shaped sliding groove 401, which is formed on the outer wall of the frame 1.

[0032] A T-shaped sliding block 402 is slidably connected to the outer wall of the T-shaped sliding groove 401, and a connecting plate 403 is fixedly connected to the outer wall of the T-shaped sliding block 402.

[0033] A fixing block 404 is fixedly connected to the outer wall of the connecting plate 403, and the fixing block 404 is fixedly connected to the top of the forging hammer 304.

[0034] A sliding rod 405 is slidably connected inside the connecting plate 403, and a spring 406 is sleeved on the outer wall of the sliding rod 405.

[0035] A limiting piece 407 is fixedly connected to the top of the sliding rod 405, and a protective net 408 is fixedly connected to the end of the sliding rod 405 away from the limiting piece 407.

[0036] The protective net 408 can move precisely and synchronously with the forging hammer 304, ensuring that the protective range always covers the forging area. During the forging process, because the height of the protective net 408 is higher than the workbench, it can preferentially form a physical barrier, effectively blocking the splashing of foreign objects such as metal chips and oxide scale generated during forging, fundamentally reducing the risk of operators being accidentally injured. When the protective net 408 contacts the ground, the sliding rod 405 slides in the connecting plate 403 and compresses the spring 406, which can not only buffer the impact force when contacting the protective net 408 to avoid damage due to hard collision, but also automatically drive the protective net 408 to reset when the forging hammer 304 is lifted by the elastic potential energy of the spring 406.

[0037] The implementation principle of the hydraulic oil pressure stabilization device for a fully hydraulic forging hammer under follow-up control in this embodiment is as follows: The output end of the high-pressure variable pump 305 is fixed to the forging hammer 304, thereby causing the forging hammer 304 to drive the slider 302 to slide on the outer wall of the groove 301 opened inside the frame 1 through the connecting block 303. A limiting plate 308 is fixed at the output end of the auxiliary hydraulic cylinder 307. The limiting plate 308 is set to the distance to be hammered through the control panel 2. When the forging hammer 304 contacts the surface of the limiting plate 308 during hammering, the limiting plate 308, through the connecting block 303, ... 03. Contact is made to limit the position of the forging hammer 304, reducing the risk of forging scrap and equipment damage caused by stroke loss. Hydraulic pipes 309 are simultaneously connected inside the high-pressure variable pump 305 and the auxiliary hydraulic cylinder 307. The high-pressure accumulator 312 is connected to the electro-hydraulic proportional valve 310 through the first hydraulic pipe 311. The electro-hydraulic proportional valve 310 is also connected to the hydraulic pipe 309. When the hydraulic oil pressure fluctuates, the electro-hydraulic proportional valve 310 adjusts the flow rate, and the high-pressure accumulator 312 can promptly absorb excess hydraulic oil or release reserve oil. Under this dual action, rapid [operation / deployment] is achieved. By smoothing pressure fluctuations and ensuring that the system pressure remains stable within the set range, the processing quality of forgings is improved. When the forging hammer 304 moves, the connecting plate 403 moves synchronously through the fixed block 404. This, combined with the stable sliding of the T-shaped sliding block 402 along the T-shaped sliding groove 401, allows the protective net 408 to move precisely and synchronously with the forging hammer 304. This ensures that the protective range always covers the forging area. During forging, because the protective net 408 is higher than the worktable, it can preferentially form a physical barrier, effectively blocking the splashing of metal chips, oxide scale, and other foreign objects generated during forging, thus preventing damage from the root. This design significantly reduces the risk of operator injury. When the protective net 408 contacts the ground, the sliding rod 405 slides within the connecting plate 403 and compresses the spring 406. This buffers the impact force upon contact, preventing damage to the protective net 408 from hard collisions. Furthermore, the elastic potential energy of the spring 406 automatically resets the protective net 408 when the forging hammer 304 is lifted, eliminating the need for additional power and ensuring continuous protection. The limiting plate 407 at the top of the sliding rod 405 effectively prevents it from detaching from the connecting plate 403, ensuring the integrity and reliability of the protective structure. The overall design balances the timeliness and continuity of protection with structural durability, greatly improving the safety of forging operations. The aforementioned electro-hydraulic proportional valve 310, model 4WRZ, can quickly respond to pressure fluctuations and precisely regulates flow rate by controlling the valve core displacement through a proportional electromagnet.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A hydraulic oil pressure stabilization device for a fully hydraulic forging hammer with servo control, characterized in that, Includes a frame (1), a control panel (2) is fixedly connected to the outer wall of the frame (1), a pressure stabilizing component (3) is provided on the outer wall of the frame (1), and a protective component (4) is provided on the outer wall of the frame (1). The pressure stabilizing component (3) includes a slide groove (301), a slider (302) is slidably connected to the outer wall of the slide groove (301), a connecting block (303) is fixedly connected to the outer wall of the slider (302), a forging hammer (304) is fixedly connected to the outer wall of the connecting block (303), a high-pressure variable pump (305) is fixedly connected to the top of the forging hammer (304), a support frame (306) is fixedly connected to the outer wall of the high-pressure variable pump (305), and an auxiliary hydraulic cylinder (307) is fixedly connected inside the support frame (306). The output end of the auxiliary hydraulic cylinder (307) is fixedly connected to a limit plate (308). A hydraulic pipe (309) is connected inside the auxiliary hydraulic cylinder (307). An electro-hydraulic proportional valve (310) is connected to one end of the hydraulic pipe (309) away from the auxiliary hydraulic cylinder (307). A first hydraulic pipe (311) is connected to one end of the electro-hydraulic proportional valve (310) away from the hydraulic pipe (309). A high-pressure accumulator (312) is connected to one end of the first hydraulic pipe (311) away from the electro-hydraulic proportional valve (310).

2. The hydraulic oil pressure stabilizing device for a fully hydraulic forging hammer under servo control as described in claim 1, characterized in that: The slide (301) is opened inside the frame (1), the support frame (306) is fixedly connected to the top of the frame (1), the limiting plate (308) is slidably connected to the outer wall of the slide (301), and the limiting plate (308) is contacted and set at the bottom of the connecting block (303).

3. The hydraulic oil pressure stabilizing device for a fully hydraulic forging hammer under servo control as described in claim 1, characterized in that: The protective component (4) includes a T-shaped sliding groove (401) which is formed on the outer wall of the frame (1).

4. The hydraulic oil pressure stabilizing device for a fully hydraulic forging hammer under servo control as described in claim 3, characterized in that: The outer wall of the T-shaped sliding groove (401) is slidably connected to a T-shaped sliding block (402), and the outer wall of the T-shaped sliding block (402) is fixedly connected to a connecting plate (403).

5. The hydraulic oil pressure stabilizing device for a fully hydraulic forging hammer under servo control as described in claim 4, characterized in that: A fixing block (404) is fixedly connected to the outer wall of the connecting plate (403), and the fixing block (404) is fixedly connected to the top of the forging hammer (304).

6. The hydraulic oil pressure stabilizing device for a fully hydraulic forging hammer under servo control as described in claim 5, characterized in that: The connecting plate (403) is slidably connected to a sliding rod (405), and a spring (406) is sleeved on the outer wall of the sliding rod (405).

7. The hydraulic oil pressure stabilizing device for a fully hydraulic forging hammer under servo control as described in claim 6, characterized in that: The top of the sliding rod (405) is fixedly connected to a limiting piece (407), and a protective net (408) is fixedly connected to the end of the sliding rod (405) away from the limiting piece (407).

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