Long workpiece clamping mechanism

By designing a long workpiece clamping mechanism with a top plate, rotating frame, and clamping arms, the problem of insufficient applicability of existing clamping mechanisms has been solved, achieving stable clamping of workpieces of various shapes and improving processing quality and efficiency.

CN224464557UActive Publication Date: 2026-07-07CMCU ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CMCU ENG
Filing Date
2025-04-30
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing long workpiece clamping mechanisms are usually only suitable for cylindrical workpieces and are difficult to adapt to complex shapes such as V-shapes, resulting in low processing efficiency, complicated operation and insufficient accuracy.

Method used

A clamping mechanism comprising a top plate, a rotating frame, clamping arms, a U-shaped seat, a connecting plate, a horizontal plate, a slider, and a reinforcing plate was designed. By rotating the rotating frame and clamping arms, and moving the connecting plate and slider, combined with the lifting control components, stable clamping of workpieces of different shapes can be achieved.

Benefits of technology

It improves the applicability and flexibility of the clamping mechanism, enabling it to adapt to various complex workpiece shapes, reduce operational complexity, improve processing quality and efficiency, and reduce the risk of workpiece damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to clamping mechanism technical field relates to a long workpiece clamping mechanism, including roof, both ends of roof bottom rotatoryly provided with rotary table, both ends of rotary table rotatoryly connect with clamping arm, the clamping arm is hinged with U -shaped seat, corresponding two U -shaped seats are provided with connecting plate, and both ends of connecting plate are hinged on two U -shaped seats respectively, the side of two connecting plates close to each other is fixedly connected with horizontal plate, the horizontal plate is provided with sliding channel, the inside sliding channel is slidably connected with sliding block, and the fixedly connected with reinforcing plate between two sliding blocks, wherein, reinforcing plate utilizes lifting control subassembly and moves up and down. The long workpiece clamping mechanism and device, through setting up clamping arm, horizontal plate and lifting control subassembly and so on structure, be applicable to columnar, V shape workpiece, and the rotary range of horizontal plate, rotary table is adjustable, be applicable to a variety of size V shape workpiece, improve the use efficiency of long workpiece clamping mechanism.
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Description

Technical Field

[0001] This utility model belongs to the technical field of clamping mechanisms and relates to a long workpiece clamping mechanism. Background Technology

[0002] In machining and assembly processes, tooling fixtures play a crucial role. They are widely used for positioning, supporting, and protecting various workpieces to ensure the accuracy and efficiency of machining or assembly. With the continuous development of the manufacturing industry, workpieces are becoming increasingly diverse in type and shape, leading to a more varied demand for tooling fixtures. Among these, clamping mechanisms for long workpieces have attracted considerable attention due to their unique characteristics.

[0003] Long workpieces, as the name suggests, refer to workpieces with relatively large lengths. During machining or assembly, these workpieces, due to their length, often require stable clamping to ensure positional accuracy and machining quality. Traditional long workpiece clamping mechanisms are relatively simple in design and are typically only suitable for workpieces of specific shapes and sizes, such as cylindrical workpieces. These clamping mechanisms often fix the workpiece using simple clamping mechanisms, which, while meeting machining requirements to some extent, limit their applicability and flexibility.

[0004] In practical applications, long workpieces are not limited to cylindrical shapes but also include various complex shapes such as V-shapes and arcs. Traditional clamping mechanisms often struggle to handle these non-cylindrical long workpieces. For example, when machining or assembling a V-shaped long workpiece, the clamping mechanism needs to adapt to its unique shape to ensure stability and accuracy during processing. However, existing clamping mechanisms often fail to do this, necessitating the use of multiple clamping mechanisms in combination, which not only increases operational complexity but also reduces processing efficiency.

[0005] In summary, existing long workpiece clamping mechanisms have many shortcomings in terms of applicability, flexibility, and adjustability. To meet the increasingly diverse needs of long workpiece machining and assembly, it is necessary to improve and innovate existing clamping mechanisms. This will not only help improve machining efficiency and accuracy but also reduce operational complexity, decrease the risk of workpiece damage, and provide strong technical support for the development of the manufacturing industry. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a long workpiece clamping mechanism to solve the problem that in the prior art, clamping mechanisms applied to long workpieces are usually only suitable for cylindrical workpieces, and their applicability is generally limited. For example, V-shaped long workpieces require the use of two sets of clamping mechanisms, and the efficiency of use needs to be improved.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a long workpiece clamping mechanism, characterized in that: it includes a top plate, with rotating frames rotatably mounted at both ends of the bottom of the top plate, and clamping arms rotatably connected to both ends of the rotating frames. Each clamping arm is hinged with a U-shaped seat, and connecting plates are respectively arranged between two U-shaped seats on the same side, with both ends of the connecting plates hinged to the corresponding two U-shaped seats. A horizontal plate is fixedly connected to the side of the two connecting plates that are close to each other. A sliding channel is provided on the horizontal plate, and a slider is slidably connected inside the sliding channel. A reinforcing plate is fixedly connected between two sliders, and a lifting control assembly is provided on the upper part of the reinforcing plate. The reinforcing plate moves up and down using the lifting control assembly.

[0008] Optionally, two reinforcing plates are provided, located at the top and bottom of the two sliders respectively.

[0009] Optionally, the lifting control assembly includes a bracket, a fixing plate, a through hole, a slide rod, and a second electric push rod;

[0010] The bracket is located above the reinforcing plate. The second electric push rod is fixedly connected to the top plate. The bracket is fixedly connected to the telescopic end of the second electric push rod. The fixing plate is fixedly connected to the top of the reinforcing plate. The through hole is opened on the fixing plate. The slide rod is slidably disposed inside the through hole. The slide rod is fixedly connected to the bracket.

[0011] Optionally, the bracket is further provided with a first electric push rod, and the fixing plate is fixedly connected to the telescopic end of the first electric push rod.

[0012] Optionally, the through holes and slide bars are configured in multiple sets and evenly distributed along the length of the reinforcing plate.

[0013] Optionally, the clamping arms are V-shaped, and the concave sides of the two clamping arms are positioned close to each other.

[0014] Optionally, a clamping block is fixedly connected to the bottom end of the clamping arm for directly contacting and clamping the workpiece.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1) Enhanced Applicability: Through ingenious design, such as the rotating connection of the two ends of the rotating frame to the clamping arms, the hinged U-shaped seats on the clamping arms, and the cooperation of structures such as connecting plates, horizontal plates, sliders, and reinforcing plates, this long workpiece clamping mechanism can not only clamp cylindrical workpieces, but also adapt to long workpieces with various complex shapes such as V-shapes. This design greatly expands the applicability of the clamping mechanism and improves its versatility in different processing and assembly scenarios.

[0017] 2) Increased Flexibility: Both the rotating frame and clamping arms in this clamping mechanism are rotatable, and the design of the cross plate and slider allows the reinforcing plate to move up and down within a certain range. This flexibility allows the clamping mechanism to be adjusted according to different workpiece shapes, ensuring the stability and accuracy of the workpiece during processing or assembly. At the same time, it reduces the skill requirements for operators and improves work efficiency.

[0018] 3) Easy to adjust and maintain: Through the control of the lifting control components (such as the first and second electric push rods), the operator can easily adjust the state of the clamping mechanism to adapt to workpieces of different shapes. Furthermore, the clamping mechanism has a relatively simple structure, is easy to disassemble and assemble, facilitates daily maintenance and upkeep, and reduces operating costs.

[0019] 4) Improved machining quality and efficiency: Because this clamping mechanism can adapt to workpieces of various shapes and provides stable and reliable clamping, it can significantly improve machining quality and efficiency. At the same time, it reduces reliance on multiple clamping mechanisms, lowers operational complexity, and makes the machining process smoother and more efficient.

[0020] 5) Promoting Manufacturing Development: The beneficial effects of this long workpiece clamping mechanism are not only reflected in the processing and assembly of individual workpieces, but also in its driving effect on the entire manufacturing industry. By improving processing efficiency and quality, and reducing operational complexity and costs, this clamping mechanism helps enhance the overall competitiveness of the manufacturing industry and promotes its development to a higher level.

[0021] In summary, this long workpiece clamping mechanism demonstrates significant benefits in enhancing applicability, improving flexibility, facilitating adjustment and maintenance, improving processing quality and efficiency, and promoting the development of the manufacturing industry.

[0022] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a long workpiece clamping mechanism according to the present invention from one perspective;

[0025] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 3 This is a schematic diagram of the structure of a long workpiece clamping mechanism according to this utility model from another perspective;

[0027] Figure 4 This is a schematic diagram of the slider and reinforcing plate structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the sliding channel and slider structure of this utility model;

[0029] Reference numerals: 1. Top plate; 2. Rotating frame; 3. Clamping arm; 4. U-shaped seat; 5. Connecting plate; 6. Horizontal plate; 7. Sliding channel; 8. Slider; 9. Reinforcing plate; 10. Bracket; 11. First electric push rod; 12. Fixing plate; 13. Through hole; 14. Sliding rod; 15. Second electric push rod; 16. Clamping block. Detailed Implementation

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] Example 1,

[0032] This utility model provides, for example Figures 1-5 The long workpiece clamping mechanism shown includes a top plate 1. In actual use, the top plate 1 can be installed on the lifting arm of the hoisting equipment to achieve the effect of clamping, lifting and moving. It can be adjusted according to the specific use.

[0033] The top plate 1 has rotating frames 2 at both ends of its bottom, which makes the tilt angle of the rotating frames 2 adjustable. The two ends of the rotating frames 2 are rotatably connected to clamping arms 3. The clamping arms 3 are V-shaped, and the side of the two clamping arms 3 that is close to each other is the concave side. A U-shaped seat 4 is hinged on the clamping arm 3. A connecting plate 5 is provided between the two corresponding U-shaped seats 4. The two ends of the connecting plate 5 are respectively hinged to the two U-shaped seats 4. A clamping block 16 is fixedly connected to the bottom end of the clamping arm 3.

[0034] When the top plate 1 remains stationary and the control connecting plate 5 moves upward, the bottom ends of the two clamping arms 3 on the same rotating frame 2 approach each other, and the two clamping blocks 16 clamp and fix the workpiece from both sides. Since there are two rotating frames 2, the two ends of the workpiece can be clamped respectively, which is suitable for longer workpieces.

[0035] Considering that some workpieces are V-shaped, such as steel structure houses with pitched roofs, where the columns are columnar and the roof is inverted V-shaped, and that these workpieces all have a certain length, in order to improve the applicability of the long workpiece clamping mechanism, in this utility model, the rotating frame 2 is rotatably set at the bottom of the top plate 1, so that the tilt angle of the rotating frame 2 is adjustable, and drives the corresponding two clamping arms 3 to adjust synchronously. When the two rotating frames 2 are distributed in a V-shape, they can be used for V-shaped workpieces, so that the long workpiece clamping mechanism can be used for both columnar workpieces and V-shaped workpieces, thus improving applicability.

[0036] To control the up-and-down movement of the connecting plate 5 and the adjustment of the tilt angle of the rotating frame 2, a horizontal plate 6 is fixedly connected to the side of the two connecting plates 5 that are close to each other. A sliding channel 7 is provided on the horizontal plate 6, and a slider 8 is slidably connected inside the sliding channel 7. A reinforcing plate 9 is fixedly connected between the two sliders 8. There are two reinforcing plates 9, one of which is located between the top of the two sliders 8 and the other is located between the bottom of the two sliders 8. The horizontal plate 6, the reinforcing plate 9, etc. can be made of high-strength stainless steel to ensure the strength of use.

[0037] Reference Figure 5 When the reinforcing plate 9 moves upward, the slider 8 slides adaptively inside the sliding channel 7. The horizontal plate 6 and the rotating frame 2 located on the left rotate counterclockwise, while the horizontal plate 6 and the rotating frame 2 located on the right rotate clockwise, so that the two rotating frames 2 are distributed in a V shape, which is suitable for V-shaped workpieces. The rotation amplitude of the horizontal plate 6 and the rotating frame 2 is adjustable, thus making it suitable for V-shaped workpieces of various sizes.

[0038] A lifting control assembly is provided at the bottom of the top plate 1. The lifting control assembly includes a bracket 10, a fixed plate 12, a through hole 13, a slide rod 14, and a second electric push rod 15. The bracket 10 is located above the reinforcing plate 9. The second electric push rod 15 is fixedly connected to the top plate 1. The bracket 10 is fixedly connected to the telescopic end of the second electric push rod 15. The fixed plate 12 is fixedly connected to the top of the reinforcing plate 9. The through hole 13 is opened on the fixed plate 12. The slide rod 14 is slidably disposed inside the through hole 13. The slide rod 14 is fixedly connected to the bracket 10.

[0039] In this embodiment, multiple through holes 13 and sliding rods 14 can be provided to ensure support strength.

[0040] A first electric push rod 11 is fixedly connected to the bracket 10, and a fixing plate 12 is fixedly connected to the telescopic end of the first electric push rod 11.

[0041] In actual use, the extension end of the first electric push rod 11 is extended, the fixed plate 12 slides on the slide rod 14, driving the reinforcing plate 9 to move synchronously, and the slider 8 slides adaptively inside the sliding channel 7, so that the two rotating frames 2 rotate along the bottom surface of the top plate 1 and finally form a V-shaped distribution.

[0042] Next, the extension end of the second electric push rod 15 is retracted, which drives the bracket 10 to move upward. The bracket 10 drives the reinforcing plate 9 to move upward synchronously through the slide rod 14, the fixing plate 12, etc. The horizontal plate 6 and the connecting plate 5 also move upward. The bottom ends of the two clamping arms 3 on the same rotating frame 2 come together, and the two clamping blocks 16 clamp and fix the workpiece from both sides.

[0043] When it is necessary to lower the workpiece, the extension end of the second electric push rod 15 is extended, which drives the bracket 10 to move downward, so that the connecting plate 5 moves downward and resets. The bottom ends of the two clamping arms 3 on the same rotating frame 2 move away from each other, releasing the clamping and fixing of the workpiece.

[0044] In this embodiment, a power supply device can be installed on the top plate 1 to supply power to the first electric push rod 11 and the second electric push rod 15. The power supply device includes a battery and other structures. The power supply device is a common existing technology and will not be described in detail here.

[0045] This utility model, by setting up a clamping arm 3, a horizontal plate 6 and a lifting control component, is suitable for columnar and V-shaped workpieces. The rotation amplitude of the horizontal plate 6 and the rotating frame 2 is adjustable, making it suitable for V-shaped workpieces of various sizes and improving the efficiency of long workpiece clamping mechanisms.

[0046] By installing lifting control components, the structures such as the rotating frame 2 distributed at both ends of the top plate 1 can be synchronously controlled, improving the ease of operation.

[0047] Example 2,

[0048] In this embodiment, a long workpiece clamping device is also included. By using the long workpiece clamping mechanism described above, the applicability of the long workpiece clamping device is improved.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A long workpiece clamping mechanism, characterized in that: Includes a top plate (1), with rotating frames (2) rotatably mounted at both ends of the bottom of the top plate (1), and clamping arms (3) rotatably connected to both ends of the rotating frames (2). Each clamping arm (3) is hinged with a U-shaped seat (4), and a connecting plate (5) is respectively provided between two corresponding U-shaped seats (4) on the same side. The two ends of the connecting plate (5) are respectively hinged to the two corresponding U-shaped seats (4). Two connecting plates (5) are respectively fixedly connected to a horizontal plate (6) on the side that is close to each other. A sliding channel (7) is provided on the horizontal plate (6). A slider (8) is slidably connected inside the sliding channel (7). A reinforcing plate (9) is fixedly connected between the two sliders (8). A lifting control component is provided on the upper part of the reinforcing plate (9). The reinforcing plate (9) moves up and down using the lifting control component.

2. The long workpiece clamping mechanism according to claim 1, characterized in that: Two reinforcing plates (9) are provided, located at the top and bottom of the two sliders (8) respectively.

3. The long workpiece clamping mechanism according to claim 1, characterized in that: The lifting control assembly includes a bracket (10), a fixing plate (12), a through hole (13), a slide rod (14), and a second electric push rod (15); The bracket (10) is located above the reinforcing plate (9). The second electric push rod (15) is fixedly connected to the top plate (1). The bracket (10) is fixedly connected to the telescopic end of the second electric push rod (15). The fixing plate (12) is fixedly connected to the top of the reinforcing plate (9). The through hole (13) is opened on the fixing plate (12). The slide rod (14) is slidably disposed inside the through hole (13). The slide rod (14) is fixedly connected to the bracket (10).

4. The long workpiece clamping mechanism according to claim 3, characterized in that: The bracket (10) is also provided with a first electric push rod (11), and the fixing plate (12) is fixedly connected to the telescopic end of the first electric push rod (11).

5. A long workpiece clamping mechanism according to claim 3, characterized in that: The through holes (13) and slide bars (14) are set in multiple groups and are evenly distributed along the length of the reinforcing plate (9).

6. The long workpiece clamping mechanism according to claim 1, characterized in that: The clamping arm (3) is V-shaped, and the concave sides of the two clamping arms (3) are arranged close to each other.

7. A long workpiece clamping mechanism according to claim 1, characterized in that: The bottom end of the clamping arm (3) is fixedly connected to a clamping block (16) for directly contacting and clamping the workpiece.