Lifting type four-column oil press

Abstract

The utility model provides a lifting type four-column oil press, which relates to the technical field of four-column oil presses and comprises a base, a rack is mounted above the base, an oil hydraulic cylinder is mounted below the rack, a pressing plate is mounted at the bottom end of the oil hydraulic cylinder, a positioning mechanism is arranged at the top end of a loading plate, and a lifting mechanism is mounted at the top end of the loading plate. Mounting mechanisms are arranged on the two sides of the carrying plate. The mounting mechanisms are arranged on the two sides of the carrying plate, and guide holes, guide blocks, positioning holes, positioning blocks, fixing plates, threaded holes, threaded rods, rotating wheels, limiting holes and limiting rods of the mounting mechanisms are matched with one another, so that the carrying plate can be conveniently dismounted and mounted, and the carrying plate is more convenient and faster to replace; according to the oil press, the fixing device is arranged, so that when different workpieces are subjected to oil pressure machining, the workpieces can be stably fixed, the efficiency is higher when the different workpieces are subjected to oil pressure machining, and the practicability of the oil press in use is greatly improved.

Description

Technical Field

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

[0002] A four-column hydraulic press is a type of hydraulic press that uses specialized hydraulic oil as its working medium and a hydraulic pump as its power source. The pump forces the hydraulic oil through hydraulic lines into the cylinder / piston. Inside the cylinder / piston are several sets of interlocking seals, each with different seals at different locations, all serving the purpose of sealing and preventing hydraulic oil leakage. Hydraulic transmission converts hydraulic energy into mechanical energy. It is a transmission method that uses liquid pressure to transmit power and perform control. A hydraulic system consists of a hydraulic pump, hydraulic cylinder, hydraulic control valve, and hydraulic auxiliary components.

[0003] For example, application number CN222431706U discloses "a lifting four-column hydraulic press" and specifically discloses that: the centering limit component includes a U-shaped support fixed on the machine body, and a lead screw and a pair of guide rods are provided between the left and right ends of the U-shaped support through bearings. However, in the above technology, it is inconvenient to disassemble and install the worktable in a convenient manner, making it inconvenient to change different clamps when hydraulically pressing different workpieces. Therefore, the efficiency is relatively low when hydraulically pressing different workpieces, thereby reducing the practicality of the hydraulic press in use. Therefore, this utility model proposes a lifting four-column hydraulic press to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a lifting four-column hydraulic press, which solves the problem in the prior art where it is inconvenient to easily disassemble and install the worktable, making it difficult to change different clamps when hydraulically pressing different workpieces, thus resulting in low efficiency when hydraulically pressing different workpieces.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a lifting four-column hydraulic press, including a base, a frame installed on the top of the base, a hydraulic cylinder installed below the frame, a pressure plate installed at the bottom of the hydraulic cylinder, limit posts installed at the four corners of the pressure plate, a carrying plate installed at the top of the base, a positioning mechanism provided at the top of the carrying plate, and installation mechanisms provided on both sides of the carrying plate;

[0006] The installation mechanism includes positioning holes, positioning blocks, fixing plates, threaded holes, threaded rods, rotating wheels, and limiting structures. The positioning holes are opened on both sides of the carrying plate, and positioning blocks are installed inside the positioning holes. Fixing plates are installed on both sides of the top of the base. A threaded hole is opened through the middle of the fixing plate, and a threaded rod is installed through the threaded hole. One end of the threaded rod is rotatably connected to one end of the positioning block, and a rotating wheel is installed on the other side of the threaded rod.

[0007] A further improvement is that the limiting structure includes a limiting hole and a limiting rod. The limiting hole is opened through both sides of the fixed plate, and the limiting rod is installed through the inside of the limiting hole. One end of the limiting rod is connected to one end of the positioning block.

[0008] A further improvement is that the cross-section of the limiting hole is larger than the cross-section of the limiting rod, and the limiting hole and the limiting rod form a sliding structure.

[0009] A further improvement is that: a guide hole is provided inside the base, and a guide block is provided inside the guide hole, with the top end of the guide block connected to the bottom end of the carrier plate.

[0010] A further improvement is that two guide blocks are provided at the bottom of the loading plate, and the two guide blocks are symmetrically distributed about the central axis of the loading plate.

[0011] A further improvement is that the positioning mechanism includes a side plate, a cylinder, and a clamping plate. The side plate is installed on both sides above the loading plate. A cylinder is installed on one side of the side plate. One end of the cylinder extends to the inside of the side plate. A clamping plate is installed on one end of the cylinder.

[0012] The beneficial effects of this utility model are as follows: By providing mounting mechanisms on both sides of the load plate, and utilizing the mutual cooperation between the guide holes, guide blocks, positioning holes, positioning blocks, fixing plates, threaded holes, threaded rods, rotating wheels, limiting holes, and limiting rods of the mounting mechanisms, the load plate can be easily disassembled and installed, making it more convenient and faster to replace the load plate. Therefore, it can stably fix different workpieces during hydraulic processing, resulting in higher efficiency and greatly improving the practicality of the hydraulic press. By providing a positioning mechanism above the load plate, and utilizing the mutual cooperation between the side plates, cylinders, and clamping plates of the positioning mechanism, the two clamping plates can be moved to fix the workpiece, making the workpiece more stable during hydraulic processing. This results in better processing effects and greatly improves the stability of the hydraulic press during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the positioning mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the installation mechanism of this utility model;

[0016] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0017] The components are: 1. base; 2. frame; 3. hydraulic cylinder; 4. pressure plate; 5. carrying plate; 6. side plate; 7. cylinder; 8. clamping plate; 9. guide hole; 10. guide block; 11. positioning hole; 12. positioning block; 13. fixing plate; 14. threaded hole; 15. threaded rod; 16. rotating wheel; 17. limit hole; 18. limit rod. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a lifting four-column hydraulic press, including a base 1, a frame 2 installed on the top of the base 1, a hydraulic cylinder 3 installed below the frame 2, a pressure plate 4 installed at the bottom of the hydraulic cylinder 3, limit posts installed at the four corners of the pressure plate 4, a carrying plate 5 installed at the top of the base 1, a positioning mechanism provided at the top of the carrying plate 5, and installation mechanisms provided on both sides of the carrying plate 5.

[0020] The installation mechanism includes a positioning hole 11, a positioning block 12, a fixing plate 13, a threaded hole 14, a threaded rod 15, a rotating wheel 16, and a limiting structure. The positioning hole 11 is located on both sides of the carrying plate 5. The positioning block 12 is installed inside the positioning hole 11. The fixing plate 13 is installed on both sides of the top of the base 1. The threaded hole 14 is opened through the middle of the fixing plate 13. The threaded rod 15 is installed through the threaded hole 14. One end of the threaded rod 15 is rotatably connected to one end of the positioning block 12. The rotating wheel 16 is installed on the other side of the threaded rod 15. When the carrying plate 5 needs to be replaced, rotating the rotating wheel 16 drives the threaded rod 15 to rotate. Since the threaded hole 14 and the threaded rod 15 are threadedly connected, the threaded rod 15 moves inside the threaded hole 14, thereby limiting the movement of the mounting mechanism. Under the limiting position of the positioning hole 17 and the limiting rod 18, the threaded rod 15 drives the positioning block 12 to move, moving the positioning block 12 out of the positioning hole 11. At this time, the work plate 5 can be removed from the top of the base 1. The new work plate 5 is taken out, and the guide block 10 is placed into the guide hole 9 to initially fix the position of the work plate 5. Then, the rotating wheel 16 is rotated in the opposite direction to drive the positioning block 12 to move the positioning block 12 into the positioning hole 11, fixing the position of the work plate 5. This completes the convenient replacement of the work plate 5, making it more convenient and faster to replace. Therefore, when performing hydraulic processing on different workpieces, it can be stably fixed, resulting in higher efficiency when performing hydraulic processing on different workpieces, thus greatly improving the practicality of the hydraulic press.

[0021] The limiting structure includes a limiting hole 17 and a limiting rod 18. The limiting hole 17 is opened through both sides of the fixing plate 13. The limiting rod 18 is installed through the inside of the limiting hole 17. One end of the limiting rod 18 is connected to one end of the positioning block 12. The cross-section of the limiting hole 17 is larger than the cross-section of the limiting rod 18. The limiting hole 17 and the limiting rod 18 form a sliding structure. In use, the mutual cooperation between the limiting hole 17 and the limiting rod 18 can limit the movement of the positioning block 12, making the positioning block 12 more stable when moving.

[0022] The base 1 has a guide hole 9 inside, and a guide block 10 is provided inside the guide hole 9. The top end of the guide block 10 is connected to the bottom end of the carrying plate 5. There are two guide blocks 10 at the bottom end of the carrying plate 5. The two guide blocks 10 are symmetrically distributed about the central axis of the carrying plate 5. The cooperation between the guide hole 9 and the guide block 10 makes the carrying plate 5 more stable and less prone to slipping during use.

[0023] The positioning mechanism includes a side plate 6, a cylinder 7, and a clamping plate 8. The side plate 6 is installed on both sides above the carrying plate 5. A cylinder 7 is installed on one side of the side plate 6, with one end of the cylinder 7 extending to the inside of the side plate 6. A clamping plate 8 is installed on one end of the cylinder 7. In use, the workpiece is placed above the carrying plate 5, and then the cylinder 7 is activated to move the clamping plate 8. The two clamping plates 8 are used to fix the position of the workpiece, making the workpiece more stable during hydraulic pressing. This results in better processing of the workpiece and greatly improves the stability of the hydraulic press during use.

[0024] Working principle: The operator first places the workpiece above the carrier plate 5, then starts the cylinder 7 to move the clamping plate 8, using the two clamping plates 8 to fix the position of the workpiece. Then, the hydraulic cylinder 3, guided by the guide column, moves the pressure plate 4 downward to press the workpiece. After pressing, the hydraulic cylinder 3 moves the pressure plate 4 upward, and then the cylinder 7 moves the two clamping plates 8 outward to remove the workpiece. When it is necessary to replace the carrier plate 5, the rotating wheel 16 is rotated to drive the threaded rod 15 to rotate. Due to the threaded connection between the threaded hole 14 and the threaded rod 15... Therefore, the threaded rod 15 moves inside the threaded hole 14, and then, under the limitation of the limiting hole 17 and the limiting rod 18, the threaded rod 15 drives the positioning block 12 to move, and the positioning block 12 is moved out from the inside of the positioning hole 11. At this time, the carrying plate 5 can be removed from the top of the base 1, the new carrying plate 5 can be taken out, the guide block 10 is placed into the inside of the guide hole 9, and the position of the carrying plate 5 is initially fixed. Then, the rotating wheel 16 is rotated in the opposite direction to drive the positioning block 12 to move, and the positioning block 12 is moved into the inside of the positioning hole 11 to fix the position of the carrying plate 5, thus completing the convenient replacement of the carrying plate 5.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting four-column hydraulic press, comprising a base (1), characterized in that: A frame (2) is installed above the base (1), a hydraulic cylinder (3) is installed below the frame (2), a pressure plate (4) is installed at the bottom of the hydraulic cylinder (3), limit posts are installed at the four corners of the pressure plate (4), a carrying plate (5) is installed at the top of the base (1), a positioning mechanism is provided at the top of the carrying plate (5), and an installation mechanism is provided on both sides of the carrying plate (5). The installation mechanism includes a positioning hole (11), a positioning block (12), a fixing plate (13), a threaded hole (14), a threaded rod (15), a rotating wheel (16), and a limiting structure. The positioning hole (11) is opened on both sides of the carrying plate (5). The positioning block (12) is provided inside the positioning hole (11). The fixing plate (13) is installed on both sides of the top of the base (1). The threaded hole (14) is opened through the middle position of the fixing plate (13). The threaded rod (15) is provided through the threaded hole (14). One end of the threaded rod (15) is rotatably connected to one end of the positioning block (12). The rotating wheel (16) is installed on the other side of the threaded rod (15).

2. The lifting four-column hydraulic press according to claim 1, characterized in that: The limiting structure includes a limiting hole (17) and a limiting rod (18). The limiting hole (17) is opened through both sides of the fixing plate (13). The limiting rod (18) is installed through the inside of the limiting hole (17). One end of the limiting rod (18) is connected to one end of the positioning block (12).

3. A lifting four-column hydraulic press according to claim 2, characterized in that: The cross-section of the limiting hole (17) is larger than the cross-section of the limiting rod (18), and the limiting hole (17) and the limiting rod (18) form a sliding structure.

4. A lifting four-column hydraulic press according to claim 1, characterized in that: The base (1) has a guide hole (9) inside, and a guide block (10) is provided inside the guide hole (9). The top end of the guide block (10) is connected to the bottom end of the carrier plate (5).

5. A lifting four-column hydraulic press according to claim 4, characterized in that: Two guide blocks (10) are provided at the bottom end of the carrier plate (5), and the two guide blocks (10) are symmetrically distributed about the central axis of the carrier plate (5).

6. A lifting four-column hydraulic press according to claim 1, characterized in that: The positioning mechanism includes a side plate (6), a cylinder (7) and a clamping plate (8). The side plate (6) is installed on both sides above the loading plate (5). A cylinder (7) is installed on one side of the side plate (6). One end of the cylinder (7) extends to the inside of the side plate (6). A clamping plate (8) is installed on one end of the cylinder (7).

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