Large shell structure clamping device
By combining the bidirectional lead screw drive assembly and the auxiliary clamping assembly, the problem of low applicability of existing clamping devices is solved, and stable clamping of shells of different shapes and heights is achieved, improving applicability and stability and reducing damage to the shell surface.
Patent Information
- Application Number
- CN202423094038.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing clamping and fixing devices for processing large shell structures have limited clamping methods and shapes, making them unsuitable for shells of different shapes and heights, and thus have low applicability.
The system employs a bidirectional lead screw drive assembly and symmetrically arranged auxiliary clamping assemblies. The bidirectional lead screw drive assembly drives the two sets of auxiliary clamping assemblies to move towards or away from each other. Combined with arc-shaped clamping blocks and rubber pads, it achieves stable clamping of shells of different shapes and heights.
It improves the applicability and stability of the clamping device, enabling it to adapt to large shell structures of different shapes and heights, and reducing surface scratches and damage.
Smart Images
Figure CN223545088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of large shell structure clamping technology, and in particular to a large shell structure clamping device. Background Technology
[0002] Large shell structures refer to spatial curved surface structures composed of spatial curved plates or edge members. Their thickness is much smaller than other dimensions, and they have excellent spatial force transmission performance.
[0003] Existing clamping and fixing devices for machining large shell structures have limited clamping methods and forms, making them unsuitable for clamping shells of different shapes and limiting their application range. This results in the need for different clamping and fixing devices when machining different parts, leading to low applicability. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a large shell structure clamping device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A large shell structure clamping device includes a fixed base with a cavity inside. A bidirectional screw drive assembly is installed in the cavity. Two sets of auxiliary clamping assemblies are driven by the bidirectional screw drive assembly on the top of the fixed base. The two sets of auxiliary clamping assemblies are symmetrically arranged, and each auxiliary clamping assembly includes a first clamping assembly and two second clamping assemblies. Fixing seats are installed on both sides of the top of the first clamping assembly and the second clamping assemblies. T-shaped fixing blocks are symmetrically installed on both sides of the bottom of the second clamping assemblies, and connecting rings are sleeved on the outer walls of the T-shaped fixing blocks.
[0007] In addition, in a preferred configuration, both the first clamping assembly and the second clamping assembly include a limiting base. Two arc-shaped cavities are symmetrically opened on one side of the limiting base. An extension plate is fixedly installed in the middle of the arc-shaped cavity, and an arc-shaped clamping block is slidably arranged outside the extension plate in the arc-shaped cavity.
[0008] In addition, a preferred structure is that T-shaped limiting blocks are installed at the middle of the top and bottom of the extension plate, and a sliding cavity is provided in the arc-shaped clamping block at the T-shaped limiting block, and a sliding groove is provided in the arc-shaped clamping block at the extension plate.
[0009] Furthermore, in a preferred configuration, the outer wall of the fixing seat is provided with an external thread, and the diameter of the fixing seat is larger than the diameter of the T-shaped fixing block.
[0010] Furthermore, in a preferred configuration, the bottom of the connecting ring is provided with a groove at the fixed base, and an internal thread is provided in the groove at the external thread portion, and the internal thread portion is threadedly connected to the external thread portion.
[0011] Furthermore, in a preferred configuration, the bidirectional lead screw drive assembly includes a bidirectional lead screw body driven by a drive motor, and two nut replicas are symmetrically arranged on the outer wall of the bidirectional lead screw body. Two connecting blocks are installed at equal intervals on the top of the nut replicas. One side of the connecting blocks is connected to an auxiliary clamping assembly, and a limit groove is formed through the fixed base at the location of the connecting block.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this invention, the combination of a bidirectional lead screw drive assembly and two sets of symmetrically arranged auxiliary clamping assemblies enables the clamping of large shell structures of different shapes, sizes, and heights within a certain range. It has strong applicability and ensures the stability of clamping large shell structures. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the disassembled structure of a large shell structure clamping device proposed in this utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the disassembled structure of a large shell structure clamping device proposed in this utility model. Figure 2 ;
[0016] Figure 3 This is a structural schematic diagram of the cross-section of the auxiliary clamping component.
[0017] In the figure: 1. Fixed base; 2. Bidirectional lead screw drive assembly; 3. Auxiliary clamping assembly; 3-1. First clamping assembly; 3-2. Second clamping assembly; 31. Limiting base; 32. Clamping arc block; 33. Extension plate; 34. T-shaped limiting block; 35. Fixed base; 36. T-shaped fixing block; 37. Connecting ring. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Reference Figure 1-3A large shell structure clamping device includes a fixed base 1 with a cavity inside. A bidirectional screw drive assembly 2 is installed inside the cavity. Two sets of auxiliary clamping assemblies 3 are driven by the bidirectional screw drive assembly 2 on the top of the fixed base 1. The two sets of auxiliary clamping assemblies 3 are symmetrically arranged, and each auxiliary clamping assembly 3 includes a first clamping assembly 3-1 and two second clamping assemblies 3-2. Fixing seats 35 are installed on both sides of the top of the first clamping assembly 3-1 and the second clamping assembly 3-2. T-shaped fixing blocks 36 are symmetrically installed on both sides of the bottom of the second clamping assembly 3-2, and connecting rings 37 are sleeved on the outer wall of the T-shaped fixing blocks 36.
[0020] Furthermore, both the first clamping assembly 3-1 and the second clamping assembly 3-2 include a limiting base 31. Two arc-shaped cavities are symmetrically opened on one side of the limiting base 31. An extension plate 33 is fixedly installed in the middle of the arc-shaped cavity, and an arc-shaped clamping block 32 is slidably arranged outside the extension plate 33 in the arc-shaped cavity.
[0021] Meanwhile, T-shaped limiting blocks 34 are installed at the top and bottom center of the extension plate 33, and a sliding cavity is provided in the arc-shaped clamping block 32 at the T-shaped limiting block 34, and a sliding groove is provided in the arc-shaped clamping block 32 at the extension plate 33.
[0022] Meanwhile, the outer wall of the fixing seat 35 is provided with an external thread, and the diameter of the fixing seat 35 is larger than the diameter of the T-shaped fixing block 36.
[0023] Furthermore, the bottom of the connecting ring 37 is provided with a groove at the fixed base 35, and an internal thread is provided in the groove at the external thread part, and the internal thread part is threadedly connected to the external thread part.
[0024] Furthermore, the bidirectional lead screw drive assembly 2 includes a bidirectional lead screw body, which is driven by a drive motor. Two nut replicas are symmetrically arranged on the outer wall of the bidirectional lead screw body. Two connecting blocks are installed at equal intervals on the top of the nut replicas. One side of the connecting blocks is connected to the auxiliary clamping assembly 3. A limiting groove is formed through the fixed base 1 at the connecting block. It is worth noting that the specific structure, connection method and working principle of the bidirectional lead screw drive assembly 2 are all existing technologies that are currently disclosed in the market and are not the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate further.
[0025] In this embodiment, the two sets of symmetrically arranged auxiliary clamping components 3 are driven by the bidirectional lead screw drive assembly 2 to move towards each other or away from each other, thereby clamping large shell structures of different shapes, sizes and heights within a certain range. It has strong applicability and ensures the stability of clamping large shell structures.
[0026] Meanwhile, as the clamping assembly 3 moves outward from the large shell structure, one end of each of the two arc-shaped clamping blocks rotates along the outside of the large shell structure until it comes into contact with the outer wall of the large shell structure, thereby clamping the large shell structure. The outer walls of the arc-shaped clamping blocks are provided with rubber pads to ensure the stability of clamping the large shell structure. Furthermore, the rubber pads prevent the clamping blocks from directly contacting the surface of the shell structure, thereby reducing surface scratches and damage.
[0027] In this invention, the bidirectional lead screw drive assembly 2 and two sets of symmetrically arranged auxiliary clamping assemblies 3 are used in combination to clamp large shell structures of different shapes, sizes and heights within a certain range. It has strong applicability and ensures the stability of clamping large shell structures.
[0028] 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. A large shell structure clamping device, comprising a fixed base (1), characterized in that, The fixed base (1) has an internal cavity, and a bidirectional screw drive assembly (2) is installed inside the cavity. The top of the fixed base (1) is driven by the bidirectional screw drive assembly (2) to have two sets of auxiliary clamping assemblies (3). The two sets of auxiliary clamping assemblies (3) are symmetrically arranged, and each auxiliary clamping assembly (3) includes a first clamping assembly (3-1) and two second clamping assemblies (3-2). Fixed seats (35) are installed on both sides of the top of the first clamping assembly (3-1) and the second clamping assembly (3-2), and T-shaped fixing blocks (36) are symmetrically installed on both sides of the bottom of the second clamping assembly (3-2). A connecting ring (37) is sleeved on the outer wall of the T-shaped fixing block (36).
2. The large shell structure clamping device according to claim 1, characterized in that, Both the first clamping assembly (3-1) and the second clamping assembly (3-2) include a limiting base (31). Two arc-shaped cavities are symmetrically opened on one side of the limiting base (31). An extension plate (33) is fixedly installed in the middle of the arc-shaped cavity, and an arc-shaped clamping block (32) is slidably arranged outside the extension plate (33) in the arc-shaped cavity.
3. A large shell structure clamping device according to claim 2, characterized in that, T-shaped limiting blocks (34) are installed at the middle of the top and bottom of the extension plate (33), and a sliding cavity is opened in the arc-shaped clamping block (32) at the T-shaped limiting block (34), and a sliding groove is opened in the arc-shaped clamping block (32) at the extension plate (33).
4. A large shell structure clamping device according to claim 1, characterized in that, The outer wall of the fixing seat (35) is provided with an external thread, and the diameter of the fixing seat (35) is larger than the diameter of the T-shaped fixing block (36).
5. A large shell structure clamping device according to claim 1, characterized in that, The bottom of the connecting ring (37) is provided with a groove at the fixed seat (35), and an internal thread is provided in the groove at the external thread, and the internal thread is threadedly connected to the external thread.
6. A large shell structure clamping device according to claim 1, characterized in that, The bidirectional lead screw drive assembly (2) includes a bidirectional lead screw body, which is driven by a drive motor. Two nut replicas are symmetrically arranged on the outer wall of the bidirectional lead screw body. Two connecting blocks are installed at equal distances on the top of the nut replicas. One side of the connecting blocks is connected to the auxiliary clamping assembly (3), and a limit groove is opened through the fixed base (1) at the connecting block.