Hydraulic cylinder clamp

Abstract

The utility model belongs to lathe processing technical field, concretely relates to hydraulic cylinder holds tightly device, including flange base and installs the axle rod on flange base surface, the surface of axle rod is connected with linkage flange base, the bottom of linkage flange base is connected with spring steel sheet, the surface of linkage flange base is connected with outer sleeve, the bottom of outer sleeve is connected with sealing base, the cavity is formed between spring steel sheet and outer sleeve, the utility model installs flange base on casting surface, linkage flange base is installed on lathe support simultaneously, when lathe carries out axial processing, supplies oil source through joint connection at this time, and the oil is injected to the inside of outer sleeve through joint at this time, the cavity is filled with oil at this time, and makes spring steel sheet punch forming change, spring steel sheet deformation force and axle rod are tightly clamped at this time, realize hold tightly fixed, install stable casting, ensure that casting is stable when axial processing, improve the processing quality of processing surface.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool processing technology, specifically relating to a hydraulic cylindrical clamping device. Background Technology

[0002] Turning and milling is a composite machining technology that integrates the turning functions of a lathe and the milling functions of a milling machine. It completes the turning of rotating workpieces, such as external diameter, internal hole, and end face machining, and the milling of planes, grooves, and tooth profiles, using the same equipment. It can greatly improve the machining efficiency and accuracy of complex parts and is one of the core processes in the field of modern mechanical manufacturing.

[0003] Specifically, when machining workpieces using ordinary axial machine tools, the stability shortcomings of traditional bolt clamping methods are particularly prominent. This clamping method relies on the friction between the bolt and the workpiece contact surface for fixation. If there is oil on the workpiece surface or insufficient flatness of the clamping surface, the bolt preload is easily unevenly distributed. During machine tool cutting, the axial cutting force and radial component work together, which will disrupt the frictional balance between the bolt and the workpiece, causing vibration. Vibration not only causes the tool cutting trajectory to deviate from the preset path, resulting in excessive perpendicularity of the workpiece step surface and poor roundness of the inner hole, but also accelerates tool wear and shortens tool life. At the same time, the high-frequency vibration generated by the vibration will be transmitted to the machine tool spindle, which may also affect the machine tool accuracy in the long run, forming a vicious cycle. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic cylindrical clamping device, which aims to solve the problem that if there is oil on the workpiece surface or insufficient flatness of the clamping surface, the bolt preload is easily unevenly distributed. During machine tool cutting, the axial cutting force and radial component act together, which will disrupt the frictional balance between the bolt and the workpiece, causing vibration. Vibration will not only cause the tool cutting trajectory to deviate from the preset path, resulting in excessive perpendicularity of the workpiece step surface and poor roundness of the inner hole, but also accelerate tool wear and shorten tool life. At the same time, the high-frequency vibration generated by the vibration will be transmitted to the machine tool spindle, which may affect the machine tool accuracy in the long run, forming a vicious cycle.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylindrical clamping device, including a flange base and a shaft mounted on the surface of the flange base, a linkage flange base connected to the surface of the shaft, a spring steel plate connected to the bottom end of the linkage flange base, an outer sleeve connected to the surface of the linkage flange base, and a sealing base connected to the bottom end of the outer sleeve; The spring steel plate and the outer sleeve together form a cavity. An oil injection port stud is threadedly connected to the oil injection port on the surface of the outer sleeve. One end of the oil injection port stud is connected to a treatment chamber, and the other end of the treatment chamber is connected to a connector. A connecting plate is connected to the inner wall of the connector, and a docking post is connected to the other end of the connecting plate. A filter assembly is installed inside the treatment chamber.

[0006] To facilitate and improve the machining effect of the machine tool, the hydraulic cylindrical clamping device of this utility model preferably has an inner wall opening of the linkage flange base and the spring steel plate forming a directional sliding connection structure with the shaft.

[0007] To facilitate the quick removal and cleaning of the filter plates inside the processing chamber, the hydraulic cylindrical clamping device of this utility model preferably has the processing chamber connected to the docking column by a connecting plate via a threaded connection.

[0008] To facilitate hydraulic clamping, the hydraulic cylindrical clamping device of this utility model preferably has an annular structure, and the surface of the spring steel plate is provided with a pre-reserved deformation groove.

[0009] To facilitate the filtration of injected oil, the hydraulic cylindrical clamping device of this utility model preferably consists of a filter plate made of 304 stainless steel.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention involves mounting a flange base on the surface of a casting and simultaneously mounting the flange base on a machine tool support. When the machine tool performs axial machining, an oil supply source is connected through a connector, and oil is injected into the inner sleeve through the connector. The cavity is filled with oil, causing the spring steel plate to undergo stamping deformation. The deformation force of the spring steel plate tightly clamps the shaft, achieving a tight grip and fixing, thus stabilizing the casting installation, ensuring the stability of the casting during axial machining, and improving the machining quality of the machined surface. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall assembly structure of the hydraulic cylindrical clamping device.

[0012] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the hydraulic cylindrical clamping device.

[0013] Figure 3 This is a schematic diagram of the spring steel plate structure of a hydraulic cylindrical clamping device.

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the processing chamber of the hydraulic cylindrical clamping device.

[0015] In the diagram: 1. Flange base; 2. Shaft; 3. Linkage flange base; 4. Spring steel plate; 5. Outer sleeve; 6. Sealing base; 7. Cavity; 8. Oil inlet stud; 9. Treatment chamber; 10. Joint; 11. Connecting plate; 12. Connecting column; 13. Filter assembly. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 The present invention provides the following technical solution: a hydraulic cylindrical clamping device, including a flange base 1 and a shaft 2 mounted on the surface of the flange base 1, a linkage flange base 3 connected to the surface of the shaft 2, a spring steel plate 4 connected to the bottom end of the linkage flange base 3, an outer sleeve 5 connected to the surface of the linkage flange base 3, and a sealing base 6 connected to the bottom end of the outer sleeve 5. The spring steel plate 4 and the outer sleeve 5 together form a cavity 7. The oil injection port on the surface of the outer sleeve 5 is threaded with an oil injection stud 8. One end of the oil injection stud 8 is connected to a treatment chamber 9, and the other end of the treatment chamber 9 is connected to a connector 10. The inner wall of the connector 10 is connected to a connecting plate 11, and the other end of the connecting plate 11 is connected to a docking post 12. A filter assembly 13 is installed inside the treatment chamber 9.

[0018] Preferably, the inner wall openings of the linkage flange base 3 and the spring steel plate 4 form a directional sliding connection structure with the shaft 2. In practical use, by moving the inner wall openings of the linkage flange base 3 and the spring steel plate 4 along the shaft 2, the machining effect of the machine tool is ensured. Preferably, the treatment chamber 9 is threadedly connected to the docking column 12 via the connecting plate 11. In actual use, the threaded connection between the treatment chamber 9 and the connector 10 allows for quick removal of the connector 10, facilitating the cleaning and reuse of the internal 304 stainless steel filter plate, thus improving the performance.

[0019] Preferably, the cavity 7 has an annular structure, and the surface of the spring steel plate 4 is provided with a pre-reserved deformation groove. In actual use, oil is injected into the cavity 7 to generate a certain pressure on the spring steel plate 4. At this time, the spring steel plate 4 deforms, which facilitates the clamping of the deformed spring steel plate 4 with the shaft 2, thereby facilitating the axial fixation of the casting.

[0020] Preferably, the filter assembly 13 is composed of a filter plate made of 304 stainless steel. In practical use, the use of a filter plate made of 304 stainless steel facilitates the filtration of incoming oil, prevents impurities from entering the cavity 7, ensures the cleanliness of the subsequent shaft 2 surface, and guarantees the hydraulic clamping effect.

[0021] The working principle of this utility model is as follows: First, the flange base 1 is installed on the surface of the casting, and the linkage flange base 3 is installed on the machine tool support. When the machine tool performs axial machining, the oil supply source is connected through the connector 10, and oil is injected into the outer sleeve 5 through the connector 10. At this time, the cavity 7 is filled with oil, which causes the spring steel plate 4 to undergo stamping deformation. The deformation force of the spring steel plate 4 tightly clamps the shaft 2, achieving a tight fixation and stabilizing the casting installation. This ensures the stability of the casting during axial machining and improves the machining quality of the machined surface. In addition, when oil is injected into the outer sleeve 5, the oil first enters the processing chamber 9 and is filtered by the filter component 13 inside the processing chamber 9 to remove impurities from the oil, preventing oil containing impurities from entering the cavity 7, avoiding wear on the surface of the shaft 2, and extending the service life of the hydraulic clamping device.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic cylindrical clamping device, comprising a flange base (1) and a shaft (2) mounted on the surface of the flange base (1), characterized in that: The surface of the shaft (2) is connected to a linkage flange base (3), the bottom end of the linkage flange base (3) is connected to a spring steel plate (4), the surface of the linkage flange base (3) is connected to an outer sleeve (5), and the bottom end of the outer sleeve (5) is connected to a sealing base (6). The spring steel plate (4) and the outer sleeve (5) together form a cavity (7). The oil injection port on the surface of the outer sleeve (5) is threaded with an oil injection stud (8). One end of the oil injection stud (8) is connected to a treatment chamber (9). The other end of the treatment chamber (9) is connected to a connector (10). The inner wall of the connector (10) is connected to a connecting plate (11). The other end of the connecting plate (11) is connected to a docking post (12). A filter assembly (13) is installed inside the treatment chamber (9).

2. The hydraulic cylindrical clamping device according to claim 1, characterized in that: The inner wall openings of the linkage flange base (3) and the spring steel plate (4) form a directional sliding connection structure with the shaft (2).

3. The hydraulic cylindrical clamping device according to claim 1, characterized in that: The processing chamber (9) is threadedly connected to the docking column (12) via a connecting plate (11).

4. The hydraulic cylindrical clamping device according to claim 1, characterized in that: The cavity (7) has an annular structure, and the surface of the spring steel plate (4) is provided with a pre-reserved deformation groove.

5. The hydraulic cylindrical clamping device according to claim 1, characterized in that: The filter assembly (13) is composed of a filter plate made of 304 stainless steel.

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