Hydraulic locking mechanism

Abstract

The utility model provides a hydraulic locking mechanism, which relates to the field of locking mechanisms and comprises a workbench locking piece, a pressing sleeve is arranged at the bottom of the workbench locking piece, and a steel ring is arranged at the bottom of the pressing sleeve. Oil enters the cylinder body from the oil injection port, when the oil pressure is enough, the piston can be pushed to move downwards, the pressing sleeve can synchronously move downwards, the pressing sleeve moves downwards, and meanwhile the five-disc pull claw is expanded outwards due to the fact that the steel ring is stressed, so that the five-disc pull claw and the upper flange plate are tensioned, the purpose of locking a workbench locking piece is achieved, oil injection is stopped, and the working efficiency is improved. The rectangular spring can jack the piston upwards to separate the pressing sleeve from the five-disc pulling claw, the steel ring shrinks, the five-disc pulling claw loosens the upper flange plate, and the purpose of loosening a workbench locking piece is achieved, the structure is simple, installation and maintenance are convenient, the locking stroke is short, the locking and loosening states can be rapidly achieved, meanwhile, the center shaft is not directly connected with the workbench, stability is better, and the service life of the workbench is prolonged. And the problem of mechanism failure caused by unbalance loading of the workbench can be effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of locking mechanisms, specifically a hydraulic locking mechanism. Background Technology

[0002] The hydraulic locking mechanism of a horizontal machining center is a key component in the machine tool used to ensure that the workpiece or tool maintains a stable and accurate position during machining. The hydraulic locking mechanism usually consists of two main parts: a locking mechanism and an unlocking mechanism. The locking mechanism is responsible for locking when needed, while the unlocking mechanism is responsible for releasing the locked state when needed.

[0003] In the machine tool industry, the locking mechanism of the rotary table is crucial for horizontal machining centers, as it is closely related to machining accuracy. Most locking mechanisms achieve locking by using one oil inlet to drive the piston of the hydraulic cylinder, which in turn drives the central shaft connected to the worktable. The other oil inlet then releases the load. While this mechanism can lock and release the rotary table, if the worktable is large and the workpiece is heavy or large, uneven loading can easily occur when loading the workpiece. This mechanism may not have problems in the short term, but prolonged uneven loading can cause deformation of the central shaft, leading to mechanism failure.

[0004] In summary, this utility model provides a hydraulic locking mechanism to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A hydraulic locking mechanism includes a worktable locking component. A pressure sleeve is located at the bottom of the worktable locking component. A steel ring is located at the bottom of the pressure sleeve. Five pull claws are located between the pressure sleeve and the steel ring. A cylinder is located at the bottom of the steel ring. A rectangular spring is located between the steel ring and the cylinder. A piston is located between the steel ring and the rectangular spring. A lower flange is located between the steel ring and the piston. An upper flange is located between the worktable locking component and the pressure sleeve.

[0007] Furthermore, in this utility model, the worktable locking component and the upper flange are connected by screws, the pressure sleeve and the piston are connected by screws, and the cylinder body and the lower flange are connected by screws.

[0008] Furthermore, in this invention, the top of the rectangular spring is fixedly connected to the top of the piston cavity, and the bottom of the rectangular spring is fixedly connected to the top of the cylinder.

[0009] Beneficial effects: This utility model has the following beneficial effects:

[0010] In this invention, oil enters the cylinder through the oil inlet. When the oil pressure is sufficient, it pushes the piston downward, and the pressure sleeve moves downward simultaneously. As the pressure sleeve moves downward, the five-disc pull claws expand outward due to the force applied to the steel ring, thereby tightening the five-disc pull claws and the upper flange, achieving the purpose of locking the worktable locking component. After the oil injection stops, the rectangular spring pushes the piston upward, causing the pressure sleeve and the five-disc pull claws to separate. At this time, the steel ring contracts, and the five-disc pull claws loosen from the upper flange, achieving the purpose of loosening the worktable locking component. Air can be blown in through the air inlet to assist the piston in moving upward and loosening the five-disc pull claws. At the same time, water that has entered the mechanism can also be discharged. This invention has a simple structure, is easy to install and maintain, and has a short locking stroke, which can quickly achieve the locking and unlocking states. In addition, there is no central shaft directly connected to the worktable, resulting in better stability and effectively avoiding the problem of mechanism failure caused by worktable uneven load. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the main cross-sectional structure of this utility model;

[0012] Fig. 2 This is an exploded structural diagram of the present invention.

[0013] In the picture:

[0014] 1. Workbench locking components; 2. Pressure sleeve; 3. Steel ring; 4. Five-plate pull claw; 5. Cylinder body; 6. Rectangular spring; 7. Piston; 8. Lower flange; 9. Upper flange. Detailed Implementation

[0015] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0016] Example 1

[0017] like Figs. 1-2As shown, this is the first embodiment of the present invention. This embodiment provides a hydraulic locking mechanism, including a worktable locking component 1, a pressure sleeve 2 at the bottom of the worktable locking component 1, a steel ring 3 at the bottom of the pressure sleeve 2, a five-plate claw 4 between the pressure sleeve 2 and the steel ring 3, a cylinder 5 at the bottom of the steel ring 3, a rectangular spring 6 between the steel ring 3 and the cylinder 5, a piston 7 between the steel ring 3 and the rectangular spring 6, a lower flange 8 between the steel ring 3 and the piston 7, and an upper flange 9 between the worktable locking component 1 and the pressure sleeve 2.

[0018] like Figs. 1-2 As shown, oil enters the cylinder 5 through the oil inlet. When the oil pressure is sufficient, it will push the piston 7 downward. The pressure sleeve 2 will also move downward synchronously. As the pressure sleeve 2 moves downward, the five-disc pull claw 4 will expand outward due to the force of the steel ring 3, thereby tightening the five-disc pull claw 4 and the upper flange 9, achieving the purpose of locking the worktable locking part 1. After the oil injection stops, the rectangular spring 6 will push the piston 7 upward, causing the pressure sleeve 2 and the five-disc pull claw 4 to separate. At this time, the steel ring 3 will contract, and the five-disc pull claw 4 will loosen the upper flange 9, achieving the purpose of loosening the worktable locking part 1. Air can be blown in through the air inlet to assist the piston 7 to move upward and loosen the five-disc pull claw 4. At the same time, water that has entered the mechanism can also be discharged.

[0019] Example 2

[0020] Reference Fig. 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0021] In this embodiment, the workbench locking member 1 and the upper flange 9 are connected by screws, the pressure sleeve 2 and the piston 7 are connected by screws, and the cylinder body 5 and the lower flange 8 are connected by screws.

[0022] like Fig. 2 As shown, the screw connection method makes the connection between the components tight and also facilitates disassembly, so as to disassemble, maintain or replace the components.

[0023] Example 3

[0024] Reference Fig. 2 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0025] In this embodiment, the top of the rectangular spring 6 is fixedly connected to the top of the inner cavity of the piston 7, and the bottom of the rectangular spring 6 is fixedly connected to the top of the cylinder 5.

[0026] like Fig. 2 As shown, the rectangular spring 6 can push the piston 7 upward after the oil injection stops, causing the pressure sleeve 2 and the five-disc pull claw 4 to separate. At this time, the steel ring 3 retracts, and the five-disc pull claw 4 loosens the upper flange 9, thus achieving the purpose of loosening the worktable locking part 1.

[0027] During use, oil enters the cylinder 5 through the oil inlet. When the oil pressure is sufficient, it will push the piston 7 downward. The pressure sleeve 2 will also move downward synchronously. As the pressure sleeve 2 moves downward, the five-disc pull claw 4 will expand outward due to the force of the steel ring 3, thereby tightening the five-disc pull claw 4 and the upper flange 9, achieving the purpose of locking the worktable locking part 1. After the oil injection stops, the rectangular spring 6 will push the piston 7 upward, causing the pressure sleeve 2 and the five-disc pull claw 4 to separate. At this time, the steel ring 3 will contract, and the five-disc pull claw 4 will loosen the upper flange 9, achieving the purpose of loosening the worktable locking part 1. Air can be blown in through the air inlet to assist the piston 7 to move upward and loosen the five-disc pull claw 4. At the same time, water that has entered the mechanism can also be discharged.

[0028] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0029] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A hydraulic locking mechanism, comprising a worktable locking component (1), characterized in that: The bottom of the worktable locking component (1) is provided with a pressure sleeve (2), the bottom of the pressure sleeve (2) is provided with a steel ring (3), a five-plate pull claw (4) is provided between the pressure sleeve (2) and the steel ring (3), a cylinder (5) is provided at the bottom of the steel ring (3), a rectangular spring (6) is provided between the steel ring (3) and the cylinder (5), a piston (7) is provided between the steel ring (3) and the rectangular spring (6), a lower flange (8) is provided between the steel ring (3) and the piston (7), and an upper flange (9) is provided between the worktable locking component (1) and the pressure sleeve (2).

2. The hydraulic locking mechanism as described in claim 1, characterized in that: The workbench locking component (1) and the upper flange (9) are connected by screws, the pressure sleeve (2) and the piston (7) are connected by screws, and the cylinder body (5) and the lower flange (8) are connected by screws.

3. The hydraulic locking mechanism as described in claim 1, characterized in that: The top of the rectangular spring (6) is fixedly connected to the top of the inner cavity of the piston (7), and the bottom of the rectangular spring (6) is fixedly connected to the top of the cylinder (5).

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