Buffer structure and hydraulic machine

Abstract

The utility model provides a buffer structure and a hydraulic machine, which comprise a buffer rod, a slot arranged at the bottom of the buffer rod, a buffer component arranged outside the buffer rod, and a cooperative component arranged inside the slot, and the cooperation assembly comprises a group of stop blocks symmetrically arranged in the slot, a group of cooperation blocks arranged between the group of stop blocks, and a cooperation structure arranged on the cooperation blocks. Through the arrangement of the cooperation assembly, part of impact force borne by the buffer rod is converted into elastic potential energy to be stored in the cooperation spring through the cooperation assembly, after the cooperation block is separated from the check block, the elastic potential energy stored in the cooperation spring can be gradually released, and the impact force can be continuously absorbed and released along with continuous descending of the check block and extrusion of the cooperation block; and the buffering effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic press technology, and in particular to a buffer structure and a hydraulic press. Background Technology

[0002] During the operation of a hydraulic press, especially in processes such as stamping and forging, the rapid movement of the piston in the hydraulic system and its sudden stop or reversal will generate strong impacts and vibrations. These impacts and vibrations will not only cause serious wear and damage to key components of the hydraulic press, such as cylinders, piston rods, and seals, shortening the service life of the equipment and increasing maintenance costs, but may also lead to a decrease in processing accuracy.

[0003] Application No. 202322193428.X specifically discloses a buffer structure for a hydraulic press, including a support base. A processing table body is located at the top center of the support base, and an auxiliary groove is integrally formed at the upper interior of the support base. A guide rail is fixedly connected to the bottom center of the auxiliary groove, and a slider is slidably connected above the guide rail. A movable connecting rod is rotatably connected to the upper left of the slider, and a combined bracket is fixedly connected to one side of the slider. In this invention, through the arrangement of a pressure plate, a first spring, a second spring, a combined bracket, a movable connecting rod, and a processing table body, when the pressure plate presses down on the workpiece and the processing table body, the compressed second and first springs provide double buffer protection for the pressed processing table body. Compared to rubber pad buffering, the double buffer structure used in this hydraulic press has a better buffering effect.

[0004] The above solution has shortcomings in use. It only uses the contraction of the first and second springs to achieve the buffering effect. When the impact force is large, the first and second springs may be over-compressed and unable to rebound, which will affect the buffering effect. Therefore, we provide a buffering structure and a hydraulic press. Utility Model Content

[0005] This invention provides a buffer structure and a hydraulic press that can continuously buffer and consume impact force, thereby gradually reducing the impact force and further improving the buffering effect.

[0006] The purpose and effect of this utility model, which provides a buffer structure and a hydraulic press, are achieved by the following specific technical means: A buffer structure includes a buffer rod and a slot disposed at the bottom of the buffer rod:

[0007] A buffer assembly, located outside the buffer rod, is used to buffer the impact force;

[0008] The cooperating component, located inside the slot, includes a set of blocks symmetrically arranged inside the slot, a set of cooperating blocks between the blocks, and a cooperating structure on the cooperating blocks.

[0009] Preferably, the buffer assembly includes support cylinders arranged in a ring around the outside of the buffer rod. Each support cylinder has a buffer spring fixedly connected to its inner wall. Each buffer spring has a sliding column fixedly connected to its top end. A connecting ring is fixedly connected to the top end of a group of sliding columns, and the inner ring of the connecting ring is connected to the outer surface of the buffer rod.

[0010] Preferably, a reinforcing ring is fixedly connected to the outer surface of a group of the support cylinders.

[0011] Preferably, the upper surface of the reinforcing ring is provided with a ring of through holes, each through hole is provided with a sliding rod, the top end of the sliding rod is connected to the bottom surface of the connecting ring, and the bottom end of each sliding rod passes through the through hole and is fixedly connected with a baffle.

[0012] Preferably, the cooperative structure of the cooperative component includes a set of cavities opened inside each cooperative block, and sliding holes are opened on the side of the two cooperative blocks that are close to each other. A cooperative spring is fixedly connected to the inner wall of each cavity, and a support is fixedly connected to the end of each set of cooperative springs that are close to each other. The outer surface of the support is slidably connected to the inner wall of the sliding hole.

[0013] Preferably, a set of the support columns are fixedly connected to the outer surface of the columns.

[0014] Preferably, a set of grooved frames is fixedly connected to both the left and right sides of the upright plate, and a support block is slidably connected to the inner wall of each grooved frame. The ends of each set of support blocks that are close to each other are connected to the outer surface of the cooperating block.

[0015] Preferably, the front and back of the upright plate are fixedly connected with positioning groove plates, and the inner wall of each positioning groove plate is slidably connected with a guide plate, and the top of each guide plate is connected to the inner top wall of the slot.

[0016] Preferably, a set of uprights are slidably connected to each of the positioning slot plates, the top of each upright is connected to the inner top wall of the slot, and a return spring is sleeved on the outside of each upright.

[0017] A hydraulic press includes the aforementioned buffer structure and a hydraulic press body.

[0018] Beneficial effects:

[0019] 1. Through the buffer component, when the buffer rod is subjected to impact force, the sliding column moves down and directly applies pressure to the buffer spring. Under the action of pressure, the buffer spring contracts and deforms, converting the impact energy into elastic potential energy and storing it. This effectively absorbs and buffers part of the impact force on the buffer rod. Through the set cooperating component, the cooperating component converts part of the impact force on the buffer rod into elastic potential energy and stores it in the cooperating spring. After the cooperating block separates from the stop block, the elastic potential energy stored in the cooperating spring will be gradually released. As the stop block continues to descend and the cooperating block squeezes, the impact force will be continuously absorbed and released, further improving the buffering effect.

[0020] 2. The combination of the upright plate, positioning groove plate and guide plate can stabilize the position of the cooperating block and the stop block, ensuring stable contact between the stop block and the cooperating block when the stop block descends, and ensuring that the absorption and release of impact force is carried out normally. The combination of the upright rod and the return spring can also compress the return spring when the buffer rod descends. The return spring will also absorb and buffer part of the impact force, and the return spring can push the buffer rod to move upward and reset. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the exploded structure of the buffer assembly of this utility model.

[0023] Figure 3 This is a three-dimensional structural schematic diagram of the cross-sectional view of the buffer rod of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the upright plate of this utility model.

[0025] Figure 5 This is a three-dimensional structural schematic diagram of the cooperation block of this utility model, shown in a top sectional view.

[0026] Figure 6 This is a three-dimensional structural diagram of the hydraulic press body of this utility model.

[0027] The correspondence between component names and drawing numbers is as follows:

[0028] 1. Buffer rod; 2. Slot; 3. Buffer assembly; 301. Support cylinder; 302. Buffer spring; 303. Sliding column; 304. Connecting ring; 305. Reinforcing ring; 306. Through hole; 307. Sliding rod; 308. Baffle; 4. Coordinating assembly; 401. Stop block; 402. Coordinating block; 403. Cavity; 404. Sliding hole; 405. Coordinating spring; 406. Support column; 407. Vertical plate; 408. Grooved frame; 409. Support block; 410. Positioning groove plate; 411. Guide plate; 412. Vertical rod; 413. Return spring; 5. Hydraulic press body. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] First Embodiment

[0031] As attached Figure 1 Appendix Figure 2 With appendix Figure 6 As shown: A buffer structure includes a buffer rod 1 and a slot 2 disposed at the bottom of the buffer rod 1. A buffer assembly 3 is disposed outside the buffer rod 1 for buffering impact force. The buffer assembly 3 includes a ring of support cylinders 301 disposed outside the buffer rod 1. A buffer spring 302 is fixedly connected to the inner wall of each support cylinder 301. A sliding column 303 is fixedly connected to the top of each buffer spring 302. A connecting ring 304 is fixedly connected to the top of a group of sliding columns 303. The inner ring of the connecting ring 304 is connected to the outer surface of the buffer rod 1. When the buffer rod 1 is impacted, the connecting ring 304 pushes the sliding column 303 down to compress the buffer spring 302. The buffer spring 302 contracts to absorb the impact force, thereby buffering part of the impact force.

[0032] A set of support cylinders 301 are all fixedly connected to a reinforcing ring 305 on their outer surfaces. The reinforcing ring 305 can be used to reinforce the connection between the support cylinders 301 and enhance the stability between the support cylinders 301. The upper surface of the reinforcing ring 305 is provided with annular through holes 306. Each through hole 306 is provided with a sliding rod 307. The top end of the sliding rod 307 is connected to the bottom surface of the connecting ring 304. The bottom end of each sliding rod 307 passes through the through hole 306 and is fixedly connected to a baffle 308. By using the cooperation of the sliding rod 307 and the baffle 308, the upward movement of the connecting ring 304 can be limited, which can prevent the sliding column 303 from separating from the support cylinder 301.

[0033] Second Embodiment

[0034] As attached Figure 1 Appendix Figure 3 Appendix Figure 4 With appendix Figure 5 As shown: The cooperating component 4 is disposed inside the slot 2, including a set of stop blocks 401 symmetrically arranged inside the slot 2 and a set of cooperating blocks 402 disposed between the set of stop blocks 401. The side of the stop blocks 401 and the cooperating blocks 402 that are close to each other are trapezoidal surfaces, which can prevent the stop blocks 401 and the cooperating blocks 402 from getting stuck.

[0035] The cooperating structure set on the cooperating block 402 includes a set of cavities 403 inside each cooperating block 402. Sliding holes 404 are provided on the sides of the two cooperating blocks 402 that are close to each other. A cooperating spring 405 is fixedly connected to the inner wall of each cavity 403. A support column 406 is fixedly connected to the ends of each set of cooperating springs 405 that are close to each other. The outer surface of the support column 406 is slidably connected to the inner wall of the sliding hole 404. When the buffer rod 1 descends, it synchronously drives the stop block 401, which presses against the cooperating block 402. The cooperating block 402 then slides on the support column 406, thus... The cooperating spring 405 inside the cavity 403 is compressed, which can convert the impact force into elastic potential energy. After the stop block 401 separates from the cooperating block 402, the cooperating spring 405 will release the stored elastic potential energy. As the impact force on the buffer rod 1 continues to decrease, the stop block 401 will also continue to compress the cooperating block 402, thereby continuously converting and releasing the impact force, further improving the buffering effect. A set of support columns 406 are fixedly connected to the outer surface of the support plate 407. The support plate 407 can be used to support and fix the support column 406, thereby ensuring the stability of the cooperating spring 405 when the cooperating block 402 and the support column 406 are compressed.

[0036] A set of grooved frames 408 are fixedly connected to both the left and right sides of the upright plate 407. Each grooved frame 408 has a support block 409 slidably connected to its inner wall. The end of each set of support blocks 409 that is close to each other is connected to the outer surface of the cooperating block 402. By using the cooperation between the grooved frame 408 and the support block 409, the cooperating block 402 can be stably supported, which can prevent the cooperating block 402 from tilting when it is squeezed.

[0037] Positioning slots 410 are fixedly connected to both the front and back of the upright plate 407. Guide plates 411 are slidably connected to the inner wall of each positioning slot 410. The top of each guide plate 411 is connected to the inner top wall of the slot 2. By cooperating with the positioning slots 410, the positions of the cooperating block 402 and the stop block 401 can be stabilized, ensuring stable contact between the stop block 401 and the cooperating block 402 when the stop block 401 descends, thus ensuring the normal operation of the absorption and release of impact force.

[0038] Each positioning slot plate 410 is slidably connected to a set of uprights 412. The top of each upright 412 is connected to the inner top wall of the slot 2. Each upright 412 is fitted with a return spring 413. With the cooperation of the uprights 412 and the return spring 413, the buffer rod 1 will also compress the return spring 413 when it descends. The return spring 413 will also absorb and buffer part of the impact force. In addition, the return spring 413 can push the buffer rod 1 to move upward and reset.

[0039] Third Embodiment

[0040] As attached Figure 6 As shown: Based on the first and second embodiments, a hydraulic press includes the buffer structure in the above embodiments, and also includes a hydraulic press body 5. The buffer rod 1, the buffer component 3 and the cooperating component 4 can be symmetrically arranged on the hydraulic press body 5 to further ensure the buffering effect.

[0041] Working principle: During use, the buffer rods 1 are symmetrically arranged on the hydraulic press body 5. When the buffer rods 1 are impacted, the connecting ring 304 pushes the sliding column 303 down to compress the buffer spring 302. The buffer spring 302 contracts to absorb the impact force, thus buffering part of the impact force. At the same time, when the buffer rods 1 descend, they will simultaneously drive the stop block 401. The stop block 401 will compress the cooperating block 402, and the cooperating block 402 will slide on the support column 406, compressing the cooperating spring 405 inside the cavity 403. This can convert the impact force into elastic potential energy. After the stop block 401 separates from the cooperating block 402, the cooperating spring 405 will release the stored elastic potential energy. As the buffer rods 1 continue to descend under the impact force, the stop block 401 will also continue to compress the cooperating block 402, thus continuously converting and releasing the impact force, further improving the buffering effect.

Claims

1. A buffer structure, characterized in that, include: A buffer rod (1) is provided with a slot (2) at the bottom of the buffer rod (1); The buffer assembly (3) is located outside the buffer rod (1) and is used to buffer the impact force. The cooperating component (4) is disposed inside the slot (2) and includes a set of blocks (401) symmetrically arranged inside the slot (2), a set of cooperating blocks (402) disposed between the set of blocks (401), and a cooperating structure disposed on the cooperating blocks (402).

2. The buffer structure according to claim 1, characterized in that: The buffer assembly (3) includes a ring of support cylinders (301) arranged outside the buffer rod (1). Each support cylinder (301) has a buffer spring (302) fixedly connected to its inner wall. Each buffer spring (302) has a sliding column (303) fixedly connected to its top end. A connecting ring (304) is fixedly connected to the top end of a group of sliding columns (303). The inner ring of the connecting ring (304) is connected to the outer surface of the buffer rod (1).

3. The buffer structure according to claim 2, characterized in that: A reinforcing ring (305) is fixedly connected to the outer surface of a group of support cylinders (301).

4. The buffer structure according to claim 3, characterized in that: The upper surface of the reinforcing ring (305) is provided with annularly arranged through holes (306). Each through hole (306) is provided with a slide rod (307), and the top end of the slide rod (307) is connected to the bottom surface of the connecting ring (304). The bottom end of each slide rod (307) passes through the through hole (306) and is fixedly connected with a baffle (308).

5. The buffer structure according to claim 1, characterized in that: The cooperative structure of the cooperative component (4) includes a set of cavities (403) opened inside each cooperative block (402). Each of the two cooperative blocks (402) has a sliding hole (404) on one side that is close to each other. Each cavity (403) has a cooperative spring (405) fixedly connected to its inner wall. Each set of cooperative springs (405) has a support column (406) fixedly connected to one end that is close to each other. The outer surface of the support column (406) is slidably connected to the inner wall of the sliding hole (404).

6. The buffer structure according to claim 5, characterized in that: A set of the support columns (406) are fixedly connected to the outer surfaces of the columns (407).

7. The buffer structure according to claim 6, characterized in that: A set of grooved frames (408) are fixedly connected to both the left and right sides of the upright plate (407). Each grooved frame (408) has a support block (409) slidably connected to its inner wall. The ends of each set of support blocks (409) that are close to each other are connected to the outer surface of the cooperating block (402).

8. The buffer structure according to claim 6, characterized in that: The front and back of the upright plate (407) are fixedly connected with positioning groove plates (410), and the inner wall of each positioning groove plate (410) is slidably connected with a guide plate (411), and the top of each guide plate (411) is connected to the inner top wall of the slot (2).

9. The buffer structure according to claim 8, characterized in that: Each of the positioning slot plates (410) is slidably connected to a set of uprights (412), the top of each upright (412) is connected to the inner top wall of the slot (2), and each upright (412) is fitted with a return spring (413).

10. A hydraulic press, characterized in that: The system includes the buffer structure described in any one of claims 1-9, and also includes the hydraulic press body (5).

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