Four-column hydraulic press of integrated oil cylinder

Abstract

The utility model relates to the technical field of hydraulic machines, in particular to a four-column hydraulic machine of an integrated oil cylinder. Comprising a hydraulic machine and an integrated oil cylinder, the hydraulic machine comprises an upper cross beam, a movable cross beam and a lower cross beam which are sequentially arranged from top to bottom, stand columns are arranged at the four corners between the upper cross beam and the lower cross beam, the movable cross beam is arranged on the stand columns in a sliding mode, and an electrical cabinet and a hydraulic station are further arranged on one side of the hydraulic machine. A liquid filling box and an integrated oil cylinder are arranged on the upper cross beam, the liquid filling box is connected with a hydraulic station, the integrated oil cylinder is installed in the upper cross beam, the integrated oil cylinder comprises a main cylinder assembly body, a fast-out cylinder assembly body and a center cylinder assembly body, the center cylinder assembly body is arranged in the main cylinder assembly body, and the fast-out cylinder assembly body is arranged at the bottom end of the main cylinder assembly body. The quick outlet cylinder, the center cylinder and the main cylinder are designed into a whole, the number of pipeline connection and connectors is reduced, the risk of hydraulic oil leakage is reduced, and the reliability and stability of a system are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic press technology, and in particular to a four-column hydraulic press with an integrated oil cylinder. Background Technology

[0002] Currently, most hydraulic cylinders adopt an independent structure, with each cylinder performing an individual action. This results in complex piping and requires numerous pipe connections, which not only increases the complexity of the system but may also lead to difficulties in pipe layout, occupy a large amount of space, and be inconvenient to install, especially in confined spaces. Furthermore, the numerous pipe connection points make leakage more likely, affecting the stability and reliability of the system.

[0003] Therefore, this utility model proposes a four-column hydraulic press with an integrated cylinder. The integrated cylinder design combines the quick-exit cylinder, the center cylinder, and the main cylinder into one unit, reducing the number of pipeline connections and joints, lowering the risk of hydraulic oil leakage, and improving the reliability and stability of the system. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an integrated hydraulic cylinder four-column hydraulic press.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A four-column hydraulic press with an integrated cylinder includes a hydraulic press and an integrated cylinder. The hydraulic press includes an upper crossbeam, a movable crossbeam, and a lower crossbeam arranged sequentially from top to bottom. Columns are provided at the four corners between the upper and lower crossbeams. The movable crossbeam is slidably mounted on the columns. An electrical cabinet and a hydraulic station are also provided on one side of the hydraulic press. The upper crossbeam is equipped with a filling tank and an integrated cylinder. The filling tank is connected to the hydraulic station. The integrated cylinder is installed inside the upper crossbeam. The integrated cylinder includes a main cylinder assembly, a quick-exit cylinder assembly, and a center cylinder assembly. The center cylinder assembly is located inside the main cylinder assembly, and the quick-exit cylinder assembly is located at the lower end of the main cylinder assembly.

[0007] Furthermore, the master cylinder assembly includes a master cylinder, a master cylinder piston rod, and a master cylinder locking flange. The master cylinder locking flange fixes the master cylinder in the upper crossbeam. The master cylinder piston rod is slidably disposed inside the master cylinder, and a portion of it extends out of the master cylinder.

[0008] Furthermore, the quick-release cylinder assembly includes a quick-release cylinder, a quick-release cylinder locking flange, and a quick-release cylinder guide rod. The quick-release cylinder is disposed at the lower end of the main cylinder piston rod, and the quick-release cylinder guide rod is slidably connected inside the quick-release cylinder and extends out of the bottom of the main cylinder.

[0009] Furthermore, an oil port is provided at the lower end of the quick-release cylinder guide rod.

[0010] Furthermore, the central cylinder assembly includes a central cylinder and a central cylinder piston rod. The central cylinder is fixedly connected to the upper end of the main cylinder piston rod, and the central cylinder piston rod is telescopically connected inside the central cylinder.

[0011] Furthermore, an oil port one is provided at the lower end of the main cylinder, and an oil port two is provided at the upper end of the main cylinder.

[0012] Furthermore, an oil port three is provided at the lower end of the central cylinder, and an oil port four is provided at the upper end of the central cylinder.

[0013] Furthermore, oil port three supplies oil to the central cylinder piston cavity through the oil port channel in the main cylinder piston rod, and oil port four supplies oil to the central cylinder rod cavity through the oil port channel in the main cylinder piston rod.

[0014] Compared with existing technologies, the four-column hydraulic press with integrated oil cylinder provided by this utility model has the following advantages:

[0015] 1. The integrated hydraulic cylinder combines the quick-release cylinder, center cylinder, and main cylinder into one unit, eliminating the complex piping connections between traditional independent cylinders. This not only simplifies the structure of the hydraulic system but also reduces the space required for piping layout, making the overall hydraulic press more compact.

[0016] 2. Integrated cylinders reduce the use of piping and fittings, thereby lowering the possibility of hydraulic oil leakage. Leakage is a significant factor affecting the performance and lifespan of hydraulic systems; reducing leakage risk helps improve system stability and reliability.

[0017] 3. Simplified installation process: Due to the integration of the hydraulic cylinder, there is no need for complex pipeline layout and joint connection during installation, which greatly simplifies the installation process, shortens the installation time, and reduces the installation cost;

[0018] 4. Easy to maintain: Integrated hydraulic cylinders reduce the number of maintenance points, making it easier for maintenance personnel to inspect and maintain the cylinders, thus reducing maintenance difficulty and costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the integrated hydraulic cylinder in this utility model;

[0021] Figure 3 This is a cross-sectional view of the integrated hydraulic cylinder in this utility model;

[0022] In the diagram: 1. Integrated hydraulic cylinder; 10. Main cylinder assembly; 101. Main cylinder; 102. Main cylinder piston rod; 103. Main cylinder locking flange; 104. Oil port one; 105. Oil port two.

[0023] 2. Filling tank; 20. Quick-release cylinder assembly; 201. Quick-release cylinder; 202. Quick-release cylinder locking flange; 203. Quick-release cylinder guide rod; 204. Oil port.

[0024] 3. Upper crossbeam; 30. Central cylinder assembly; 301. Central cylinder; 302. Central cylinder piston rod; 303. Oil port three; 304. Oil port four.

[0025] 4. Movable crossbeam, 5. Upright column, 6. Lower crossbeam, 7. Electrical cabinet, 8. Hydraulic station. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example 1, referring to Figures 1-3 A four-column hydraulic press with an integrated cylinder is disclosed, comprising a hydraulic press and an integrated cylinder 1. The hydraulic press includes an upper crossbeam 3, a movable crossbeam 4, and a lower crossbeam 6 arranged sequentially from top to bottom. Columns 5 are provided at the four corners between the upper crossbeam 3 and the lower crossbeam 6. The movable crossbeam 4 is slidably mounted on the columns 5. An electrical cabinet 7 and a hydraulic station 8 are also provided on one side of the hydraulic press. The filling tank 2 and the integrated cylinder 1 are provided on the upper crossbeam 3. The filling tank 2 and the hydraulic station 8 are connected. The integrated cylinder 1 is installed inside the upper crossbeam 3. The integrated cylinder 1 includes a main cylinder assembly 10, a quick-exit cylinder assembly 20, and a center cylinder assembly 30. The center cylinder assembly 30 is provided inside the main cylinder assembly 10, and the quick-exit cylinder assembly 20 is provided at the lower end of the main cylinder assembly 10.

[0029] By setting up the above scheme, through the cooperation of different cylinders in the main cylinder assembly 10, quick-exit cylinder assembly 20 and center cylinder assembly 30 in the integrated cylinder 1, the hydraulic press can increase the top force of the main cylinder 101 and reduce the layout of oil pipes when pressing.

[0030] The electrical control system in electrical cabinet 7 controls the operation of the hydraulic press. The filling tank 2 can not only replenish hydraulic oil to ensure the normal operation of the entire integrated cylinder 1, but also alleviate the pressure fluctuation of the hydraulic system in hydraulic station 8 to a certain extent, making the system pressure more stable.

[0031] In Example 2, the master cylinder assembly 10 includes a master cylinder 101, a master cylinder piston rod 102, and a master cylinder locking flange 103. The master cylinder locking flange 103 fixes the master cylinder 101 in the upper crossbeam 3. The master cylinder piston rod 102 is slidably disposed inside the master cylinder 101, and a portion of it extends out of the master cylinder 101 when extended. The master cylinder locking flange 103 locks the master cylinder 101 in the upper crossbeam 3, and the lower end of the master cylinder piston rod 102 is locked to the upper plane of the movable crossbeam 4 through the piston rod flange.

[0032] In Example 3, the quick-exit cylinder assembly 20 includes a quick-exit cylinder 201, a quick-exit cylinder locking flange 202, and a quick-exit cylinder guide rod 203. The quick-exit cylinder 201 is located at the lower end of the main cylinder piston rod 102. The quick-exit cylinder guide rod 203 is slidably connected inside the quick-exit cylinder 201 and extends out of the bottom of the main cylinder 101. A quick-exit cylinder locking flange 202 is also provided on the quick-exit cylinder 201 near the bottom of the main cylinder 101. A quick-exit cylinder sleeve is fixed to the top of the quick-exit cylinder locking flange 202. When the quick-exit cylinder sleeve slides up and down on the main cylinder piston rod 102, it provides a smooth and hard surface for the main cylinder piston rod 102, ensuring that the main cylinder piston rod 102 can move in a straight line during extension and retraction, reducing skewness and vibration, improving the stability and accuracy of movement, and reducing friction between the main cylinder piston rod 102 and the quick-exit cylinder guide rod 203. An oil port 204 is provided at the lower end of the quick-exit cylinder guide rod 203. Hydraulic oil is injected into the quick-release cylinder 201 through oil port 204.

[0033] In Example 4, the central cylinder assembly 30 includes a central cylinder 301 and a central cylinder piston rod 302. The central cylinder 301 is fixedly connected to the upper end of the main cylinder piston rod 102. The central cylinder piston rod 302 is telescopically connected inside the central cylinder 301, and one end of the central cylinder piston rod 302 can extend out of the central cylinder 301 and connect to the movable crossbeam 4. A central cylinder 301 port lock nut is provided at the cylinder port of the central cylinder 301 to seal the cylinder port of the central cylinder 301. The central cylinder piston rod 302 extends and retracts out of the central cylinder 301 through the central cylinder 301 port lock nut. The central cylinder 301 port lock nut is fixed to the top end of the main cylinder piston rod 102.

[0034] The lower end of the main cylinder 101 is provided with an oil port 104, and the upper end of the main cylinder 101 is provided with an oil port 105. The oil port 104 leads to the plug cavity of the main cylinder 101, and the oil port 105 leads to the rod cavity of the main cylinder 101.

[0035] The lower end of the central cylinder 301 is provided with an oil port 303, and the upper end of the central cylinder 301 is provided with an oil port 4 304.

[0036] Oil port 303 feeds oil into the plug cavity of the central cylinder 301 through the oil port channel in the master cylinder piston rod 102, and oil port 404 feeds oil into the rod cavity of the central cylinder 301 through the oil port channel in the master cylinder piston rod 102.

[0037] The ejection process of this utility model is as follows: First, oil is introduced into the quick ejection cylinder 201 through the oil port 204. After the quick ejection cylinder 201 is filled with oil, it will lift the piston rod 102 of the main cylinder and push it outward, so as to achieve the purpose of the main cylinder 101 extending quickly. Then, oil is introduced into the oil port 104, and hydraulic oil enters the plug cavity of the main cylinder, which will give the main cylinder 101 a large pressure, driving the movable crossbeam 4 to start pressing. After the piston rod 102 of the main cylinder is pressed, oil is supplied to the oil port 303, and oil is introduced into the plug cavity of the central cylinder 301, which in turn lifts the piston rod 302 of the central cylinder to perform the demolding action.

[0038] The retraction process of this utility model is as follows: oil enters the rod chamber of the central cylinder 301 through oil port 4 304, the piston rod 302 of the central cylinder retracts to its original position, and then oil enters the rod chamber of the main cylinder 101 through oil port 2 105, the piston rod 102 of the main cylinder retracts to its original position, and drives the movable crossbeam 4 to retract to its original position.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated oil cylinder four-column hydraulic machine, comprising a hydraulic machine and an integrated oil cylinder, the hydraulic machine comprising an upper cross beam (3), a movable cross beam (4) and a lower cross beam (6) arranged in sequence from top to bottom, a stand column (5) being arranged at the four corners between the upper cross beam (3) and the lower cross beam (6), the movable cross beam (4) being slidingly arranged on the stand column (5), and the hydraulic machine further comprising an electrical cabinet (7) and a hydraulic station (8) arranged on one side, characterized in that: The upper cross beam (3) is provided with a liquid tank (2) and an integrated oil cylinder (1), the liquid tank (2) is connected with the hydraulic station (8), the integrated oil cylinder (1) is installed in the upper cross beam (3), the integrated oil cylinder (1) comprises a main cylinder assembly (10), a quick cylinder assembly (20) and a center cylinder assembly (30), the center cylinder assembly (30) is arranged in the main cylinder assembly (10), and the quick cylinder assembly (20) is arranged at the bottom end of the main cylinder assembly (10).

2. The integrated ram four-column hydraulic machine of claim 1, wherein: The main cylinder assembly (10) comprises a main cylinder (101), a main cylinder piston rod (102) and a main cylinder locking flange (103), the main cylinder locking flange (103) fixes the main cylinder (101) in the upper cross beam (3), and the main cylinder piston rod (102) is slidably arranged in the main cylinder (101) and extends out of the main cylinder (101).

3. The integrated ram cylinder four-column hydraulic machine of claim 2, wherein: The quick cylinder assembly (20) comprises a quick cylinder (201), a quick cylinder locking flange (202) and a quick cylinder guide rod (203), the quick cylinder (201) is arranged at the lower end of the main cylinder piston rod (102), and the quick cylinder guide rod (203) is slidably connected in the quick cylinder (201) and extends out of the bottom of the main cylinder (101).

4. The integrated ram cylinder four-column hydraulic machine of claim 3, wherein: An oil port (204) is arranged at the lower end of the quick cylinder guide rod (203).

5. The integrated ram cylinder four-column hydraulic machine of claim 3, wherein: The center cylinder assembly (30) comprises a center cylinder (301) and a center cylinder piston rod (302), the center cylinder (301) is fixedly connected to the upper end of the main cylinder piston rod (102), and the center cylinder piston rod (302) is telescopically connected in the center cylinder (301).

6. The integrated ram cylinder four column hydraulic press of claim 2, wherein: An oil port one (104) is arranged at the lower end of the main cylinder (101), and an oil port two (105) is arranged at the upper end of the main cylinder (101).

7. The four-column hydraulic machine with the integrated oil cylinder according to claim 5, wherein an oil port three (303) is arranged at the lower end of the center cylinder (301), and an oil port four (304) is arranged at the upper end of the center cylinder (301).

8. The integrated ram cylinder four column hydraulic press of claim 7, wherein: The oil port three (303) supplies oil to the plug cavity of the center cylinder (301) through an oil port channel in the main cylinder piston rod (102), and the oil port four (304) supplies oil to the rod cavity of the center cylinder (301) through the oil port channel in the main cylinder piston rod (102).

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