Machine tool workbench for improving sheet forming buckling deformation

Abstract

The utility model relates to a machine tool table capable of improving sheet forming buckling deformation, which comprises a cylinder body and a piston, the cylinder body is provided with a piston hole, the piston is arranged in the piston hole, the bottom of the piston hole is provided with an oil cavity, a pressing ring is fixedly arranged along the top edge of the piston hole, and the pressing ring is provided with an oil outlet. The pressing ring is used for limiting the piston hole. The utility model has the advantages that the planeness precision of a workpiece can be obviously improved, so that the planeness precision meets or exceeds the strict requirement of 0.01 mm. The method is of great significance to production of high-precision products such as metal bipolar plates and the like. By introducing a hydraulic mechanism, not only is the problem of deformation of the integral workbench when the integral workbench bears pressure solved, but also the stability and the reliability of the whole machining process are improved, and powerful support is provided for manufacturing of high-precision products.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of processing workbench, especially a kind of machine tool workbench for improving sheet forming warping deformation. BACKGROUND

[0002] In modern manufacturing industry, with the rapid development of science and technology, the requirement of machining precision is increasingly improved, especially for the production of high-precision products such as metal bipolar plate or high-precision sheet, the flatness precision requirement often reaches or exceeds the extremely high standard of 0.01mm.

[0003] However, the traditional machine tool workbench will appear local pressure too heavy during processing, especially when bearing larger pressure, which leads to the problem of bending and deflection deformation of sheet, which seriously restricts the improvement of machining precision and is difficult to meet the production demand of high-precision products. SUMMARY

[0004] In view of the above situation, it is necessary to provide a machine tool workbench for improving sheet forming warping deformation to solve at least one of the above problems, comprising a cylinder and a piston, the cylinder is provided with a piston hole, the piston is arranged in the piston hole, the bottom of the piston hole is provided with an oil cavity, the top edge of the piston hole is fixedly provided with a pressure ring, and the pressure ring is used for limiting the piston.

[0005] Preferably, the wall surface of the piston hole is also embedded with an oil seal.

[0006] Preferably, the pressure ring and the top edge of the piston hole are uniformly provided with a plurality of threaded holes, and the plurality of threaded holes are respectively position corresponding.

[0007] Preferably, the cylinder is also provided with an oil channel, and the oil channel is communicated with the oil cavity.

[0008] Preferably, the piston comprises a first plug part and a second plug part, the first plug part and the second plug part are integrally made, the first plug part and the second plug part are both circular cake, and the diameter of the second plug part is greater than that of the first plug part.

[0009] Preferably, a part of the pressure ring is threadedly connected with the top edge of the piston hole, and the other part is suspended.

[0010] Preferably, the oil seal is made of wear-resistant material. BRIEF DESCRIPTION OF DRAWINGS

[0011] 1, cylinder; 11, piston hole; 12, oil cavity; 2, piston; 21, first plug part; 22, second plug part; 3, pressure ring; 4, oil seal; 5, threaded hole; 6, oil channel

[0012] Figure 1It is the structure schematic view of the machine tool worktable for improving the warping deformation of the thin plate of the embodiment of the utility model.

[0013] Figure 2 It is the sectional view of the machine tool worktable for improving the warping deformation of the thin plate of the embodiment of the utility model.

[0014] Figure 3 It is the structure schematic view of the cylinder of the embodiment of the utility model.

[0015] Figure 4 It is the structure schematic view of the piston of the embodiment of the utility model.

[0016] Figure 5 It is the structure schematic view of the compression ring of the embodiment of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the machine tool worktable for improving the warping deformation of the thin plate of the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0018] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanical connection, or electrical connection; It can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0020] Please see Figures 1 to 5The utility model discloses an improved machine tool worktable of sheet forming warping deformation, including cylinder body 1 and piston 2, the cylinder body 1 is provided with piston hole 11, the piston 2 is set up in piston hole 11, the bottom of piston hole 11 is provided with oil cavity 12, along the top edge fixed setting of piston hole 11 is provided with the compression ring 3, the compression ring 3 is used for limiting piston 2.

[0021] In the above embodiment, the core lies in introducing hydraulic mechanism to effectively deal with the bending and deflection deformation problem of the overall worktable when bearing pressure. The worktable body is composed of cylinder body 1 and piston 2, the cylinder body 1 is internally provided with piston hole 11, and the piston 2 is arranged in the piston hole 11. In order to ensure the stability of the piston 2, prevent the piston 2 from moving upward under the action of the oil in the oil cavity 12, the compression ring 3 is fixed at the top edge of the piston hole 11, which not only limits the piston 2, but also enhances the stability of the overall structure.

[0022] In the working process, when the upper die of the machine tool applies pressure to the lower die, the force will be sequentially transmitted to the lower die and the piston 2 below. At this time, the hydraulic oil in the oil cavity 12 at the bottom of the piston hole 11 plays a key role. With the increase of pressure, the hydraulic oil is extruded and generates a corresponding reaction force. Due to the incompressibility and uniform pressure transmission characteristics of the hydraulic oil, the reaction force can be uniformly distributed to each part of the bottom surface of the piston 2, thereby avoiding the bending or deflection deformation caused by uneven force.

[0023] As the key component of the hydraulic system, the uniform reaction force on the bottom surface of the piston 2 ensures the flatness of the upper surface of the piston 2. Since the piston 2 is in direct or indirect contact or support relationship with the workpiece, each plane of the workpiece can also maintain corresponding stability and flatness. This stable support structure effectively prevents the deformation of the workpiece during the force process, thereby ensuring the flatness accuracy of the workpiece during the forming process.

[0024] The utility model has the advantages that it can significantly improve the flatness accuracy of the workpiece, so that it meets or exceeds the strict requirement of 0.01mm. This is of great significance for producing high-precision products such as metal bipolar plates. By introducing the hydraulic mechanism, the utility model not only solves the deformation problem of the overall worktable when bearing pressure, but also improves the stability and reliability of the entire machining process, providing strong support for the manufacture of high-precision products.

[0025] Please refer to Figures 1 to 5 In another embodiment, the wall surface of the piston hole 11 is also embedded with an oil seal 4.

[0026] In the above embodiment, it is ensured that the hydraulic oil can be kept in the oil cavity 12 during the pressing of the piston 2, preventing it from leaking into the working area. The oil seal 4 closely fits the wall surface of the piston hole 11, forming an effective sealing barrier that can maintain its sealing performance even in a high-pressure and high-friction working environment. This measure not only maintains the stability of the hydraulic system, preventing performance degradation or failure due to oil leakage, but also ensures the cleanliness and safety of the working environment.

[0027] Please refer to Figures 1 to 5 In another embodiment, the compression ring 3 and the top edge of the piston hole 11 are uniformly provided with a plurality of threaded holes 5, and the plurality of threaded holes 5 are respectively positionally corresponding.

[0028] In the above embodiment, the compression ring 3 and the cylinder body 1 are stably connected. By installing fasteners (such as bolts or screws) in these corresponding threaded holes 5, the compression ring 3 can be firmly fixed on the top edge of the piston hole 11, thereby limiting the upward movement of the piston 2 and enhancing the stability of the overall structure.

[0029] In addition, the uniform distribution of threaded holes 5 also ensures the uniform distribution of connection force, avoiding local damage or deformation caused by excessive force on a single point. This structural design not only improves the carrying capacity of the workbench, but also prolongs its service life. At the same time, since the threaded holes 5 are designed for ease of disassembly and maintenance, subsequent maintenance work is also facilitated.

[0030] Please refer to Figures 1 to 5 In another embodiment, the cylinder body 1 is also provided with an oil channel 6, which communicates with the oil cavity 12.

[0031] In the above embodiment, the oil channel 6 functions to establish direct communication with the oil cavity 12, forming a complete hydraulic circulation system. During operation, when the external hydraulic pump or other pressure source injects hydraulic oil into the oil cavity 12, the oil flows quickly and smoothly into the oil cavity 12 through the oil channel 6, providing the necessary hydraulic support for the piston 2, and when the oil injection is completed, the oil channel 6 is sealed, making the oil cavity 12 become a closed state.

[0032] At the same time, the design of the oil channel 6 also takes into account the backflow and circulation of hydraulic oil. When the piston 2 is subjected to pressure and produces a small displacement, the hydraulic oil in the oil cavity 12 needs to be released or redistributed due to compression. At this time, the oil channel 6 becomes an important channel for the backflow or redistribution of hydraulic oil, ensuring the stable operation of the hydraulic system.

[0033] Please refer to Figures 1 to 5In another embodiment, the piston 2 comprises a first plug portion 21 and a second plug portion 22, the first plug portion 21 and the second plug portion 22 are integrally formed, the first plug portion 21 and the second plug portion 22 are both circular disc-shaped, and the second plug portion 22 has a larger diameter than the first plug portion 21. A part of the compression ring 3 is threadedly connected with the top edge of the piston hole 11, and another part is suspended.

[0034] In the above embodiment, the assembly is provided with a compression ring 3, which is unique in that a part is firmly connected with the top edge of the piston hole 11 through threads, achieving stable fixation and sealing effect. Another part of the compression ring 3 is suspended and not directly connected with the surrounding structure. The key role of the suspended part is to form a resistance with the edge of the second plug portion 22, serving as a limiting device for the upward displacement of the piston 2. This prevents damage caused by overtravel and improves the safety and reliability of the entire piston 2 assembly.

[0035] Please refer to Figures 1 to 5 In another embodiment, the oil seal 4 is made of wear-resistant material.

[0036] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present application still fall within the scope of the present application.

Claims

1. A machine tool worktable for improving warping deformation during thin sheet forming, characterized in that, The cylinder and the piston are included, the cylinder is provided with a piston hole, the piston is arranged in the piston hole, the bottom of the piston hole is provided with an oil cavity, and the top edge of the piston hole is fixedly provided with a pressing ring for limiting the piston.

2. The machine table for improving the warping deformation of a sheet metal formed part according to claim 1, wherein: The wall surface of the piston hole is also embedded with an oil seal.

3. The machine table for improving the warping deformation of a sheet metal forming according to claim 1, wherein: The pressing ring and the top edge of the piston hole are uniformly provided with a plurality of threaded holes, and the plurality of threaded holes are respectively position corresponding.

4. The machine table for improving the warping deformation of a sheet metal formed part according to claim 1, wherein: The cylinder is also provided with an oil channel which is communicated with the oil cavity.

5. The machine table for improving the warping deformation of a sheet metal formed part according to claim 3, wherein: The piston includes a first plug part and a second plug part, the first plug part and the second plug part are integrally made, the first plug part and the second plug part are both circular cake-shaped, and the diameter of the second plug part is greater than that of the first plug part.

6. The machine table for improving the warping deformation of a sheet metal formed part according to claim 5, wherein: A part of the pressing ring is threadedly connected with the top edge of the piston hole, and the other part is suspended.

7. The machine table for improving sheet forming warp deformation according to claim 2, wherein: The oil seal is made of wear-resistant material.

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