A quick positioning and clamping device for engine cylinder head of Yuchai assembly line

Abstract

The utility model discloses a kind of engine cylinder cover quick positioning clamping devices for Yuchai assembly line, including device ontology, the device ontology includes workbench, positioning clamping device and engine cylinder cover, the engine cylinder cover is installed in positioning clamping device, and the positioning clamping device is fixed in workbench top by screw;The positioning clamping device includes main frame body device, first clamping device, second clamping device and upper clamping device, the first clamping device and second clamping device are both installed in the right side of main frame body device surface by screw and first clamping device is below second clamping device, and the upper clamping device is installed in the left end of main frame body device top. This kind of device can achieve the technical effect that positioning is accurate and unbiased when cylinder cover is processed, clamping is stable and does not loosen and shake.

Description

Technical Field

[0001] This utility model relates to the field of engine cylinder head clamping technology, specifically to a quick positioning and clamping device for engine cylinder heads used in Yuchai assembly lines. Background Technology

[0002] The cylinder head is mounted on top of the cylinder block, sealing the cylinder from above and forming the combustion chamber. It is constantly in contact with high-temperature, high-pressure combustion gases, thus bearing significant thermal and mechanical loads. Water-cooled engines have a cooling water jacket inside the cylinder head, and the cooling water holes on the lower end face of the cylinder head communicate with the cooling water holes in the cylinder block. Circulating water is used to cool the high-temperature components such as the combustion chamber.

[0003] Existing engine cylinder head processing equipment lacks a precise positioning structure, which makes the cylinder head prone to positional deviations during processing. The cylinder head is also prone to loosening and shaking during processing, resulting in key dimensions such as hole positions and flatness not meeting process requirements after processing, thus affecting the compatibility of engine assembly.

[0004] Therefore, a solution is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a quick positioning and clamping device for engine cylinder heads used in Yuchai assembly lines, thereby solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick positioning and clamping device for engine cylinder heads used in Yuchai assembly lines, comprising a device body, the device body including a workbench, a positioning clamping device, and an engine cylinder head, the engine cylinder head being installed inside the positioning clamping device, the positioning clamping device being fixed to the top of the workbench by screws; the positioning clamping device including a main frame device, a first clamping device, a second clamping device, and an upper clamping device, the first clamping device and the second clamping device being installed on the right side of the surface of the main frame device by screws, with the first clamping device located below the second clamping device, the upper clamping device being installed on the top left end of the main frame device, the first clamping device and the second clamping device each including a mounting plate, a first cylinder, a first clamping plate, and a clamping rubber column, the first cylinder being installed on the mounting plate with the first cylinder drive end located on the front side of the mounting plate, the first clamping plate being installed on the first cylinder drive end, the first clamping plate having a rectangular structure, the clamping rubber column being installed on the inner end of the first clamping plate, the clamping rubber column having a cylindrical structure.

[0009] Preferably, the main frame device has a T-shaped structure. The main frame device includes a base plate and an assembly plate. The assembly plate is installed on the top of the base plate. A cylinder head embedding limiting groove is opened on the left side of the surface of the assembly plate. The cylinder head embedding limiting groove is located on the left side of the first clamping device and the second clamping device, and the cylinder head embedding limiting groove is located below the upper clamping device.

[0010] Preferably, the cylinder head is provided with a set of positioning posts arranged in a row at equal intervals on both the left and right sides of the embedded limiting groove, and the front end of the positioning post is provided with a through post.

[0011] Preferably, a set of cylinder mounting notches distributed in a row at equal intervals are provided on the right side of the assembly plate surface, and an upper mounting notch is provided on the top left end of the assembly plate.

[0012] Preferably, the upper clamping device includes an upper support block, an upper mounting platform, an upper cylinder, and an upper clamping column. The upper mounting platform is mounted on top of the upper support block, the upper cylinder is mounted on top of the upper mounting platform, the driving end of the upper cylinder is located below the upper mounting platform, and the upper clamping column is mounted on the driving end of the upper cylinder. The upper clamping column has a cylindrical structure.

[0013] (III) Beneficial Effects

[0014] This utility model provides a quick positioning and clamping device for engine cylinder heads used in Yuchai assembly lines. It has the following advantages:

[0015] This solution presents a quick-positioning and clamping device for engine cylinder heads used in Yuchai assembly lines. It achieves precise positioning through the collaborative design of the cylinder head embedded in the limiting groove, positioning pins, and through-pins. The multi-directional cylinder-driven clamping structure, combined with the first and second clamping devices and the upper clamping device, ensures stable clamping. Simultaneously, it utilizes clamping rubber pins to achieve flexible clamping and protect the cylinder head surface. Furthermore, its modular layout is compatible with Yuchai assembly line integration, effectively solving problems of positional deviation, loosening, and shaking. It ensures that key dimensions such as machining holes and flatness meet process requirements, improves engine assembly adaptability, protects cylinder head quality, and facilitates production line integration and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall side structure of this utility model.

[0018] In the diagram, 1. Device body; 2. Workbench; 3. Positioning and clamping device; 4. Engine cylinder head; 5. Main frame device; 6. First clamping device; 7. Second clamping device; 8. Upper clamping device; 9. Mounting plate; 10. First cylinder; 11. First clamping plate; 12. Clamping rubber column; 13. Positioning column; 14. Through column; 15. Upper support block; 16. Upper mounting platform; 17. Upper cylinder; 18. Upper clamping column; 19. Base plate; 20. Assembly plate; 21. Cylinder mounting notch; 22. Upper mounting notch; 23. Cylinder head embedded in limiting groove. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-2 This utility model provides a technical solution:

[0021] Example 1

[0022] To address the aforementioned problems: existing engine cylinder head processing equipment lacks a precise positioning structure, making the cylinder head prone to positional deviations during processing. The cylinder head is also prone to loosening and shaking during processing, resulting in key dimensions such as hole positions and flatness not meeting process requirements after processing, thus affecting the compatibility of engine assembly.

[0023] The solution is as follows: A quick positioning and clamping device for engine cylinder heads used in Yuchai assembly lines includes a device body 1. The device body 1 includes a worktable 2, a positioning and clamping device 3, and an engine cylinder head 4. The engine cylinder head 4 is installed inside the positioning and clamping device 3. The positioning and clamping device 3 is fixed to the top of the worktable 2 by screws. The positioning and clamping device 3 includes a main frame device 5, a first clamping device 6, a second clamping device 7, and an upper clamping device 8. The first clamping device 6 and the second clamping device 7 are both installed on the right side of the surface of the main frame device 5 by screws, and the first clamping device 8 is... Position 6 is located below the second clamping device 7. The upper clamping device 8 is installed on the top left end of the main frame device 5. Both the first clamping device 6 and the second clamping device 7 include a mounting plate 9, a first cylinder 10, a first clamping plate 11, and a clamping rubber column 12. The first cylinder 10 is installed on the mounting plate 9 and the driving end of the first cylinder 10 is located on the front side of the mounting plate 9. The first clamping plate 11 is installed on the driving end of the first cylinder 10 and has a rectangular structure. The clamping rubber column 12 is installed on the inner end of the first clamping plate 11 and has a cylindrical structure.

[0024] Analysis of the above: The first cylinder 10 is mounted on the mounting plate 9, and its driving end drives the first clamping plate 11 to move back and forth; the clamping rubber column 12 at the inner end of the first clamping plate 11 moves with the plate body to achieve lateral clamping / releasing of the engine cylinder head 4; before processing, the first cylinder 10 extends, driving the first clamping plate 11 and the clamping rubber column 12 to move towards the cylinder head to complete the clamping; after processing, the first cylinder 10 retracts, releasing the cylinder head for removal; the cylinder drive method can provide stable and controllable clamping force to adapt to the clamping requirements under different processing conditions; the flexible structure of the clamping rubber column 12 not only avoids scratches on the cylinder head surface from hard contact, but also enhances the friction during clamping, ensuring clamping reliability; the first clamping device 6 and the second clamping device 7 are arranged in layers to achieve synchronous clamping of different height areas of the cylinder head, restricting the cylinder head shaking from the side in all directions.

[0025] Example 2:

[0026] Please see Figure 1-2 The present invention provides a technical solution based on Embodiment 1: the main frame device 5 has a T-shaped structure, the main frame device 5 includes a base plate 19 and an assembly plate 20, the assembly plate 20 is installed on the top of the base plate 19, and a cylinder head embedding limiting groove 23 is opened on the left side of the surface of the assembly plate 20. The cylinder head embedding limiting groove 23 is located on the left side of the first clamping device 6 and the second clamping device 7, and the cylinder head embedding limiting groove 23 is located below the upper clamping device 8.

[0027] Analysis of the above: The main frame assembly 5 is T-shaped, and the base plate 19 provides rigid support at the bottom. The cylinder head embedding limiting groove 23 on the left side of the assembly plate 20 is the "coarse positioning" structure of the engine cylinder head 4, which allows the cylinder head to be quickly embedded and initially restricts its position. When the cylinder head needs to be installed, it is aligned with the cylinder head embedding limiting groove 23 from the side or top and embedded. If the positioning accuracy needs to be adjusted, it can be fine-tuned by checking the fit between the cylinder head and the groove. The T-shaped structure layout is reasonable, and the cylinder head embedding limiting groove 23 realizes the rapid initial positioning of the cylinder head, laying the foundation for subsequent precise positioning and clamping. At the same time, the rigid connection between the assembly plate 20 and the base plate 19 ensures the structural strength of the entire main frame and can withstand the impact of external forces during processing.

[0028] Example 3:

[0029] Please see Figure 1-2 Based on Embodiment 1, this utility model provides a technical solution: a set of positioning posts 13 are provided on both the left and right sides of the cylinder head embedded in the limiting groove 23 in a row-like equidistant manner, and the front end of the positioning post 13 is provided with a through post 14.

[0030] Analysis of the above content: After the cylinder head is embedded in the limiting groove 23, the positioning pin 13 and the front connecting pin 14 precisely match the preset holes on the engine cylinder head, achieving "precise positioning" of the cylinder head and ensuring that the cylinder head position is without deviation during processing; at the same time as the cylinder head is embedded in the limiting groove 23, the positioning pin 13 and the connecting pin 14 are simultaneously inserted into the corresponding holes of the cylinder head to complete precise positioning; if different models of cylinder heads need to be replaced, the positioning pin assembly of the corresponding size can be replaced; through the mechanical positioning method of "pin-hole" cooperation, the positioning accuracy is extremely high, effectively controlling the positional deviation during cylinder head processing and ensuring the processing accuracy of key dimensions such as hole position and flatness; the equidistantly distributed layout in rows makes the positioning force balanced, further improving the positioning stability and providing a basic guarantee for high-precision processing.

[0031] Example 4:

[0032] Please see Figure 1-2 The present invention provides a technical solution based on Embodiment 1: a set of cylinder mounting notches 21 distributed in a row at equal intervals are provided on the right side of the surface of the assembly plate 20, and an upper mounting notch 22 is provided on the top left end of the assembly plate 20.

[0033] Analysis of the above content: The cylinder mounting notch 21 on the right side of the assembly plate 20 provides installation space for the first cylinder 10, and the upper mounting notch 22 on the top left provides a mounting position for the upper support block 15. The compact layout of each functional component is achieved through the pre-set notches. During assembly, the first cylinder 10 is aligned with the cylinder mounting notch 21 and the upper support block 15 is aligned with the upper mounting notch 22 for installation and fixation. During maintenance, the corresponding components can be quickly disassembled through these notches. The notch layout enables each component to achieve functional complementarity within a limited space, resulting in a compact structure that does not interfere with each other. The pre-set mounting notches simplify the alignment process during assembly, improve assembly efficiency, and facilitate the later inspection and replacement of components.

[0034] Example 5:

[0035] Please see Figure 1-2 The present invention provides a technical solution based on Embodiment 1: the upper clamping device 8 includes an upper support block 15, an upper mounting platform 16, an upper cylinder 17 and an upper clamping column 18. The upper mounting platform 16 is mounted on the top of the upper support block 15, the upper cylinder 17 is mounted on the top of the upper mounting platform 16, the driving end of the upper cylinder 17 is located below the upper mounting platform 16, and the upper clamping column 18 is mounted on the driving end of the upper cylinder 17. The upper clamping column 18 has a cylindrical structure.

[0036] Analysis of the above: The upper support block 15 supports the upper mounting platform 16, and the upper cylinder 17 is installed on the top of the upper mounting platform 16. Its drive end drives the upper clamping column 18 to move up and down, realizing the downward clamping / releasing of the top of the engine cylinder head 4. After the cylinder head is positioned and clamped, the upper cylinder 17 extends, driving the upper clamping column 18 to press down on the top of the cylinder head. After processing, the upper cylinder 17 retracts, and the upper clamping column 18 moves up to release. In conjunction with the first and second lateral clamping devices, a three-dimensional clamping structure of "lateral + top" is formed, which completely eliminates the loosening and shaking of the cylinder head during processing. The cylindrical structure of the upper clamping column 18 makes the clamping force evenly distributed, avoiding excessive local stress. The combination of the upper mounting platform 16 and the upper support block 15 ensures the stability of the upper cylinder 17 installation and makes the top clamping action precise and controllable.

[0037] Working principle: During operation, the engine cylinder head 4 is first precisely positioned by the cylinder head embedding limit groove 23 of the main frame device 5 and the positioning columns 13 and through columns 14 arranged in rows on the left and right. Then, the first cylinder 10 of the first clamping device 6 and the second clamping device 7 drives the first clamping plate 11 and the clamping rubber column 12 to clamp the cylinder head from the side at multiple heights. The upper cylinder 17 of the upper clamping device 8 drives the upper clamping column 18 to press down and clamp from the top, forming a three-dimensional clamping structure of "side + top". During this process, the flexible structure of the clamping rubber column 12 achieves non-destructive clamping of the cylinder head. The entire device is stably supported on the Yuchai assembly line by the modular layout of the workbench 2, positioning and clamping device 3 and other components. Finally, it achieves the technical effect of precise positioning without deviation and stable clamping without loosening or shaking during cylinder head processing, ensuring that key dimensions such as hole position and flatness meet the process requirements, while protecting the surface quality of the cylinder head and adapting to production line integration and maintenance.

[0038] This utility model comprises: 1. Device body; 2. Workbench; 3. Positioning and clamping device; 4. Engine cylinder head; 5. Main frame device; 6. First clamping device; 7. Second clamping device; 8. Upper clamping device; 9. Mounting plate; 10. First cylinder; 11. First clamping plate; 12. Clamping rubber post; 13. Positioning post; 14. Through post; 15. Upper support block; 16. Upper mounting platform; 17. Upper cylinder; 18. Upper clamping post; 19. Base plate; 20. Assembly plate; 21. Cylinder mounting notch; 22. Upper mounting notch; 23. Cylinder head embedded in limiting groove. All components are of general standard. The components or parts known to those skilled in the art have structures and principles that can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that existing engine cylinder head processing equipment lacks a precise positioning structure, and the cylinder head is prone to positional deviation during processing. During processing, the cylinder head is prone to loosening and shaking, resulting in the key dimensions such as hole positions and flatness after processing not meeting the process requirements, affecting the compatibility of engine assembly. This utility model, through the combination of the above-mentioned components, can achieve the technical effect of precise positioning without deviation and stable clamping without loosening or shaking during cylinder head processing.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-positioning and clamping device for engine cylinder heads used in Yuchai assembly lines, characterized in that: The device includes a main body (1), which includes a worktable (2), a positioning clamping device (3) and an engine cylinder head (4). The engine cylinder head (4) is installed inside the positioning clamping device (3), which is fixed to the top of the worktable (2) by screws. The positioning clamping device (3) includes a main frame device (5), a first clamping device (6), a second clamping device (7), and an upper clamping device (8). The first clamping device (6) and the second clamping device (7) are both installed on the right side of the surface of the main frame device (5) by screws, with the first clamping device (6) located below the second clamping device (7). The upper clamping device (8) is installed on the top left end of the main frame device (5). Both the first clamping device (6) and the second clamping device (7) include... The mounting plate (9), the first cylinder (10), the first clamping plate (11) and the clamping rubber column (12) are mounted on the mounting plate (9) and the driving end of the first cylinder (10) is located on the front side of the mounting plate (9). The first clamping plate (11) is mounted on the driving end of the first cylinder (10) and has a rectangular structure. The clamping rubber column (12) is mounted on the inner end of the first clamping plate (11) and has a cylindrical structure.

2. The engine cylinder head quick positioning and clamping device for Yuchai assembly line according to claim 1, characterized in that: The main frame device (5) has a T-shaped structure. The main frame device (5) includes a base plate (19) and an assembly plate (20). The assembly plate (20) is installed on the top of the base plate (19). A cylinder head embedding limiting groove (23) is opened on the left side of the surface of the assembly plate (20). The cylinder head embedding limiting groove (23) is located to the left of the first clamping device (6) and the second clamping device (7). The cylinder head embedding limiting groove (23) is located below the upper clamping device (8).

3. The engine cylinder head quick positioning and clamping device for Yuchai assembly line according to claim 2, characterized in that: The cylinder head is embedded in the limiting groove (23) and a set of positioning posts (13) are arranged in a row at equal intervals on both the left and right sides. The front end of the positioning post (13) is provided with a through post (14).

4. The engine cylinder head quick positioning and clamping device for Yuchai assembly line according to claim 2, characterized in that: The assembly plate (20) has a set of cylinder mounting notches (21) arranged in a row at equal intervals on the right side of its surface, and an upper mounting notch (22) is provided at the top left end of the assembly plate (20).

5. The engine cylinder head quick positioning and clamping device for Yuchai assembly line according to claim 1, characterized in that: The upper clamping device (8) includes an upper support block (15), an upper mounting platform (16), an upper cylinder (17), and an upper clamping column (18). The upper mounting platform (16) is mounted on the top of the upper support block (15), the upper cylinder (17) is mounted on the top of the upper mounting platform (16), the driving end of the upper cylinder (17) is located below the upper mounting platform (16), and the upper clamping column (18) is mounted on the driving end of the upper cylinder (17). The upper clamping column (18) has a cylindrical structure.

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