Combined type assembling device for marine engine rack parts and using method
Through the modular design and precise positioning of the combined assembly device, the problems of low efficiency, poor accuracy and high cost in marine engine frame assembly are solved, flexible assembly and efficient production are achieved, and it is suitable for multi-type engine frames.
Patent Information
- Application Number
- CN202510882033.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-08-29
AI Technical Summary
The existing marine engine frame assembly process has problems such as low efficiency, poor accuracy and high cost, especially the large manual positioning error, large overall tooling weight and inflexible, and cannot adapt to multiple models of production.
Combined assembly devices are adopted, including door mounting seat tooling, pedal seat tooling and pipeline installation flange tooling. Through modular design and precise positioning, the clamping structure and contour adaptation are used to achieve flexible assembly and step-by-step assembly process.
It improves assembly accuracy and efficiency, reduces cost and labor intensity, is suitable for multi-model production, avoids manual errors and welding deformation, and ensures the sealing property of the sealing surface.
Smart Images
Figure CN120551982A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of marine engine assembly, and in particular to a combined assembly device for marine engine frame parts and a use method thereof. Background Art Large marine engine frames, as the core load-bearing structure of the power system, are typically over 8 meters long and 3 meters wide. The frame side panels are assembled from hundreds of parts, with a large working area and high dimensional accuracy requirements. However, the current mainstream assembly process for these components has several problems: The current manual marking and positioning assembly method can adapt to the production of multiple models and can adapt to the assembly of different engine models according to actual conditions. However, during the assembly process, workers need to manually position more than 100 parts on the 8m×3m side panel. The probability of positioning deviation increases exponentially with the length of the operation. Manual assembly is prone to assembly errors, and the dimensional chain transmission errors of multiple parts are difficult to control. For example, if the cumulative tolerance of the rack door frame mounting seat exceeds 1.5mm, it will cause sealing surface leakage. The existing technology uses laser projection to replace manual marking for positioning and assembly, but the equipment itself is too expensive and the maintenance cost is too high. In addition, dust and vibration in the workshop cause optical path drift, which also affects assembly efficiency and accuracy. The assembly method using overall tooling positioning, such as the existing engine frame welding platform, ensures accuracy through a rigid frame, but the overall tooling is heavy and requires a customized hydraulic lifting mechanism for assembly and positioning, resulting in excessive tooling weight, requiring crane coordination for shifting, and insufficient daily utilization. In addition, the manufacturing cost of a single tooling is too high, and it is only suitable for a single model and cannot be applied to multiple models. Existing ship engine models are iterating rapidly, and traditional overall tooling cannot be reorganized and modified, resulting in a high scrap rate and excessively high overall assembly costs. Summary of the Invention
[0002] In response to the problems existing in the prior art, the present invention provides a combined assembly device for marine engine frame parts and a method for use, which realizes flexible assembly and welding of the frame side panels, solves the problems of low efficiency and difficult control of product precision in the existing production process, avoids the inconvenience of large-scale tooling transportation and storage, improves the product quality of marine engines, shortens the assembly time of side panel parts, and reduces the labor intensity of workers.
[0003] The technical solutions of the present invention are as follows: In the first aspect of the present invention, a combined assembly device for marine engine frame parts is provided, including a door mounting seat tooling, a walkway tooling and a pipeline mounting flange tooling arranged in an oblong structure, the outer side of the door mounting seat tooling is provided with a plurality of clamping structures and a plurality of slot structures, the slot structures are used to be clamped and adapted with the door mounting seat, and a plurality of tooling combination nodes are provided on the combination surface of the walkway tooling and the pipeline mounting flange tooling with the door mounting seat tooling, the tooling combination nodes are clamped and adapted with the clamping structures; the door mounting seat tooling is also provided with an oil baffle tooling with a conical structure, a door hinge tooling with a groove structure, and a handle tooling with a strip structure. In some embodiments of the present invention, the inner contour of the door mounting seat tooling arranged in an oblong structure is adapted to the outer contour of the rack door frame at the cylinder port on the rack side panel. In some embodiments of the present invention, one end of the platform tooling close to the door mounting seat tooling is arranged in an arc-shaped structure, and a tooling assembly node is provided on the arc structure. In some embodiments of the present invention, the platform tooling is arranged in a strip-shaped stepped structure, and one end of the platform tooling away from the arc structure is adapted to the end surface of the platform on the side panel of the frame. In some embodiments of the present invention, a lug assembly tool is provided in the middle of the platform tooling that is arranged in a strip-shaped stepped structure, and the lug assembly tooling is adapted to the end surface of the lug on the side panel of the frame. In some embodiments of the present invention, one end of the pipeline mounting flange tooling close to the door mounting seat tooling is arranged in an arc-shaped structure, and a tooling assembly node is provided on the arc structure. In some embodiments of the present invention, a groove structure is provided at one end of the pipeline mounting flange tooling away from the arc structure, and the pipeline mounting flange on the side panel of the frame is adapted to be arranged in the groove structure. In some embodiments of the present invention, the plurality of slot structures are symmetrically arranged on two parallel straight line frames of the door mounting seat tooling; the plurality of clamping structures are arranged on the arc structure of the door mounting seat tooling close to one end of the oil baffle tooling. In some embodiments of the present invention, the oil baffle tooling with a conical structure is arranged on the arc structure at one end of the door mounting seat tooling, the door hinge tooling with a groove structure is arranged on the straight frame on one side of the door mounting seat tooling, and the handle with a strip structure is arranged on the arc structure at the other end of the door mounting seat tooling away from the oil baffle tooling.
[0004] In a second aspect of the present invention, a method for using a modular assembly device for marine engine frame parts is provided, comprising: Install the door mounting fixture on the side panel of the frame and position it through the frame door frame of the No. 1 cylinder; Use the door mounting seat tooling to install and spot weld the door mounting seat on the lower half of the No. 1 cylinder, use the door hinge tooling to assemble the door hinge, and use the handle to manually assemble the handle; By combining the tooling combination nodes of the platform assembly tooling and the pipeline installation flange tooling with the door installation tooling, the platform, lifting lugs and pipeline installation flange of the No. 1 cylinder are assembled respectively; Assemble the platform, lifting lugs and pipeline mounting flanges and spot weld them in place. After removing the platform assembly tooling and pipeline mounting flange tooling, use the door assembly tooling to re-assemble the door mounting seat and oil baffle plate on the upper half of the No. 1 cylinder and spot weld them in place. Repeat the above steps using the modular assembly tool to assemble and spot weld the relevant parts of cylinders 2 to 6 respectively; After spot welding the walkway and lifting lug of the sixth cylinder, mirror the walkway assembly tooling and assemble and spot weld the walkway and lifting lug of the seventh cylinder.
[0005] One or more technical solutions of the present invention have the following beneficial effects: The present invention provides a modular assembly device and method for marine engine frame parts. Through modular design, precise positioning, and a step-by-step assembly process, it effectively solves the problems of low efficiency, poor precision, and high cost in the prior art, and provides an efficient solution for the large-scale production of marine engine frames. Specifically: Flexible assembly improves precision. Through modular design, the tooling can be flexibly adjusted according to different machine models. At the same time, the clamping structure and contour adaptation ensure assembly accuracy, with tolerances controlled within 1.5mm. Modular tooling reduces manual intervention and tooling replacement time, effectively improving assembly efficiency; The lightweight design of the tooling reduces manufacturing and handling costs, and is suitable for multi-model production, significantly reducing the scrap rate and assembly costs.
[0006] It avoids manual marking errors and welding deformation, improves the overall quality of the frame side panels, and especially solves the problem of sealing surface leakage, ensuring assembly efficiency while ensuring assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 This is an assembly drawing of the side panel parts of a marine engine frame provided in Example 1 of the present invention; Figure 2 This is a schematic structural diagram of the door mounting base tooling provided in Example 1 of the present invention; Figure 3This is a schematic structural diagram of the platform tooling provided in Example 1 of the present invention; Figure 4 This is a schematic structural diagram of the pipeline mounting flange tooling provided in Example 1 of the present invention; Figure 5 This is a schematic diagram of the overall assembly structure of a combined assembly device for marine engine frame parts provided in Example 1 of the present invention; Figure 6 A schematic diagram of the combined structure of a door mounting base and a door hinge assembled with the door mounting base tooling provided in Example 1 of the present invention; Figure 7 This is a schematic diagram of the combined structure of the door mounting base tooling provided in Example 1 of the present invention, including the platform, lifting lugs, and pipeline mounting flange; Figure 8 A schematic diagram of the combined structure of the secondary assembly of the door mounting seat tooling and the oil baffle provided in Example 1 of the present invention; Figure 9 This is a schematic diagram of the combined structure of the mirror-image assembly platform and the lifting lugs of the door mounting seat tooling provided in Example 1 of the present invention; Figure 10 This is a schematic diagram of the assembly sequence application of a combined assembly device for marine engine frame parts provided in Example 1 of the present invention.
[0008] In the figure: 1. Door mounting seat tooling; 101. Clamping structure; 102. Slot structure; 2. Oil baffle tooling; 3. Door hinge tooling; 4. Handle assembly; 5. Walkway tooling positioning end face; 6. Lifting ear assembly tooling; 7. Tooling combination node; 8. Pipeline installation flange tooling; 9. Walkway tooling; 10. Door mounting seat; 11. Door hinge; 12. Rack door frame; 13. Handle; 14. Walkway; 15. Lifting ear; 16. Pipeline installation flange; 17. Oil baffle. DETAILED DESCRIPTION
[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0010] Example 1 In a typical embodiment of the present invention, a combined assembly device for marine engine frame parts is proposed, which is characterized in that it includes a door mounting seat tooling 1, a walkway tooling 9 and a pipeline mounting flange tooling 8 arranged in an oblong structure, and the outer side of the door mounting seat tooling 1 is provided with a plurality of clamping structures 101 and a plurality of slot structures 102, and the slot structure 102 is used to be clamped and adapted with the door mounting seat 10, and a plurality of tooling combination nodes 7 are provided on the combination surface of the walkway tooling 9 and the pipeline mounting flange tooling 8 with the door mounting seat tooling 1, and the tooling combination nodes 7 are clamped and adapted with the clamping structure 101; the door mounting seat tooling 1 is also provided with an oil baffle tooling 2 with a conical structure, a door hinge tooling 3 arranged in a groove structure, and a handle manual tooling 4 arranged in a strip structure.
[0011] In this way, the flexible assembly of the frame side panel parts is achieved through the combination of the oblong door mounting seat tooling 1 and other tooling. This modular design can flexibly adjust the tooling combination method according to the requirements of different types of engine frames, significantly improving the versatility and adaptability of the tooling.
[0012] The setting of the snap-fit structure 101 and the slot structure 102 ensures the precise docking between the tooling and the parts, avoids the errors caused by manual marking and positioning, and realizes the precise positioning of the assembly. For example, the slot structure 102 of the door mounting seat 10 is adapted to the parts, and the tolerance can be controlled within 1.5 mm, thus solving the problem of sealing surface leakage.
[0013] In addition, the oil baffle tooling 2, the door hinge tooling 3 and the manual tooling 4 are integrated into the door mounting seat tooling 1, which reduces the frequency of tooling replacement during the assembly process and improves assembly efficiency. In addition, compared with traditional integral tooling, the combined design reduces the tooling's own weight, does not require reliance on large-scale lifting equipment for shifting, and significantly improves the average daily utilization rate.
[0014] Furthermore, the inner contour of the door mounting seat tooling 1 arranged in an oblong structure is adapted to the outer contour of the frame door frame 12 at the cylinder mouth on the frame side panel.
[0015] Such arrangement ensures close fit between the tooling and the rack door frame 12 through contour adaptation, reduces adjustment time during assembly, and improves positioning accuracy.
[0016] Reduce cumulative errors, the contour adaptation design avoids the transmission error of the dimensional chain, and is especially suitable for the multi-part assembly of large frame side panels, ensuring the stability of the overall structure.
[0017] Furthermore, the walking platform tooling 9 is arranged in an arc-shaped structure at one end close to the door mounting seat tooling 1, and a tooling assembly node 7 is provided on the arc-shaped structure.
[0018] Furthermore, the platform fixture 9 is arranged in a strip-shaped stepped structure, and one end of the platform fixture 9 away from the arc structure is adapted to the end surface of the platform 14 on the side panel of the frame. Furthermore, a lifting lug assembly tool 6 is provided in the middle of the walking platform tool 9 which is arranged in a strip-shaped stepped structure, and the lifting lug assembly tool 6 is adapted to the end surface of the lifting lug 15 on the side panel of the frame.
[0019] The tooling assembly node 7 at the arc-shaped end realizes the rapid docking of the platform tooling 9 and the door installation seat tooling 1, thereby simplifying the assembly process.
[0020] The stepped structure is provided with a platform fixture positioning end face 5 which matches the end face of the platform 14 on the side panel of the frame, thereby ensuring the accurate installation position of the platform 14 and avoiding welding deformation.
[0021] The lifting eye assembly tool 6 is integrated into the middle of the platform tool 9, which realizes the synchronous positioning and assembly of the lifting eye 15 and the platform 14, reduces the number of tools, and improves the assembly efficiency.
[0022] Furthermore, the pipeline mounting flange tooling 8 is arranged in an arc-shaped structure at one end close to the door mounting seat tooling 1, and a tooling assembly node 7 is provided on the arc-shaped structure. Furthermore, a groove structure is provided at one end of the pipeline mounting flange tooling 8 away from the arc structure, and the pipeline mounting flange 16 on the side panel of the frame is adapted to be arranged in the groove structure. The tooling assembly node 7 at the arc-shaped end is quickly connected to the door mounting seat tooling 1, realizing the coordinated operation of multiple toolings.
[0023] The groove structure accurately fixes the pipeline installation flange 16, avoids deviation during flange installation, and ensures the sealing and stability of the pipeline system.
[0024] Furthermore, the plurality of slot structures 102 are symmetrically arranged on two parallel straight line frames of the door mounting seat tooling 1; the plurality of clamping structures 101 are arranged on the arc structure of the door mounting seat tooling 1 close to one end of the oil baffle tooling 2. Furthermore, the oil baffle tooling 2 with a conical structure is arranged on the arc structure at one end of the door mounting seat tooling 1, the door hinge tooling 3 with a groove structure is arranged on the straight frame on one side of the door mounting seat tooling 1, and the manual handle 4 with a strip structure is arranged on the arc structure at the other end of the door mounting seat tooling 1 away from the oil baffle tooling 2.
[0025] The symmetrically distributed slot structure 102 improves the docking stability between the tooling and the parts, and is particularly suitable for the assembly of large rack side panels.
[0026] The clamping structure 101 at a specific position optimizes the mechanical distribution of the tooling assembly and avoids stress concentration during the assembly process.
[0027] The reasonable layout of functional tooling, the setting positions of the oil baffle tooling 2, the door hinge tooling 3 and the manual tooling 4 are ergonomic, making it easy for operators to complete the assembly quickly.
[0028] In a second aspect of the present invention, a method for using a modular assembly device for marine engine frame parts is provided, comprising: Install the door mounting fixture 1 on the side panel of the frame and position the fixture through the frame door frame 12 of the first cylinder; Use the door mounting fixture 1 to install and spot weld the door mounting seat 10 on the lower half of the first cylinder, use the door hinge fixture 3 to assemble the door hinge 11, and use the handle fixture 4 to assemble the handle 13; By combining the tooling assembly node 7 of the platform 14 assembly tooling and the pipeline installation flange tooling 8 with the door installation tooling 1, the platform 14, the lifting lug 15 and the pipeline installation flange 16 of the first cylinder are assembled respectively; Assemble the platform 14, the lifting lug 15 and the pipeline mounting flange 16 and spot weld them in place. After removing the platform 14 assembly tooling and the pipeline mounting flange tooling 8, use the door assembly tooling to re-assemble the door mounting seat 10 and the oil baffle 17 on the upper half of the No. 1 cylinder and spot weld them in place. Repeat the above steps using the modular assembly tool to assemble and spot weld the relevant parts of cylinders 2 to 6 respectively; After the assembly and spot welding of the walking platform 14 and the lifting lug 15 of the sixth cylinder are completed, the assembly tooling of the walking platform 14 is mirrored and assembled, and the walking platform 14 and the lifting lug 15 of the seventh cylinder are assembled and spot welded.
[0029] The step-by-step assembly process avoids the influence of welding deformation on accuracy by assembling the lower half first and then the upper half.
[0030] Mirror image combination application, in the assembly of the seventh cylinder, through the mirror image combination of the bench tooling 9, the tooling is reused and the cost is reduced.
[0031] The standardized operation, clear method steps and strong repeatability make it suitable for the mass production of multiple types of engine frames, significantly improving assembly efficiency.
[0032] The present invention provides a modular assembly device and method for marine engine frame parts. Through modular design, precise positioning, and a step-by-step assembly process, it effectively solves the problems of low efficiency, poor precision, and high cost in the prior art, providing an efficient and economical solution for the large-scale production of marine engine frames. Specifically: Flexible assembly improves precision. Through modular design, the tooling can be flexibly adjusted according to different machine models. At the same time, the clamping structure 101 and contour adaptation ensure assembly accuracy, with tolerances controlled within 1.5mm. Modular tooling reduces manual intervention and tooling replacement time, effectively improving assembly efficiency; The lightweight design of the tooling reduces manufacturing and handling costs, and is suitable for multi-model production, significantly reducing the scrap rate and assembly costs.
[0033] It avoids manual marking errors and welding deformation, improves the overall quality of the frame side panels, and especially solves the problem of sealing surface leakage, ensuring assembly efficiency while ensuring assembly quality.
[0034] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.
Claims
1. A combined assembly device for marine engine frame parts, characterized in that: It includes a door mounting seat tooling, a walkway tooling and a pipeline installation flange tooling arranged in an oblong structure. The outer side of the door mounting seat tooling is provided with a number of clamping structures and a number of slot structures. The slot structure is used to clamp and adapt with the door mounting seat. A number of tooling combination nodes are provided on the combination surface of the walkway tooling and the pipeline installation flange tooling with the door mounting seat tooling. The tooling combination nodes are clamped and adapted with the clamping structure. The door mounting seat tooling is also provided with an oil baffle tooling with a conical structure, a door hinge tooling with a groove structure, and a handle tooling with a strip structure.
2. A combined assembly device for marine engine frame parts according to claim 1, characterized in that: The inner contour of the door mounting seat tooling arranged in an oblong structure is adapted to the outer contour of the frame door frame at the cylinder port on the frame side plate.
3. A combined assembly device for marine engine frame parts according to claim 1, characterized in that: The end of the platform tooling close to the door installation seat tooling is arranged in an arc-shaped structure, and a tooling assembly node is provided on the arc structure.
4. A combined assembly device for marine engine frame parts according to claim 3, characterized in that: The walking platform tooling is arranged in a strip-shaped stepped structure, and one end of the walking platform tooling away from the arc structure is adapted to the walking platform end face on the side panel of the frame.
5. A combined assembly device for marine engine frame parts according to claim 4, characterized in that: A lifting lug assembly tool is provided in the middle of the platform tooling which is arranged in a strip-shaped stepped structure. The lifting lug assembly tooling is matched with the lifting lug end surface on the side panel of the frame.
6. A combined assembly device for marine engine frame parts according to claim 1, characterized in that: The pipeline mounting flange tooling is provided with an arc-shaped structure at one end close to the door mounting seat tooling, and a tooling assembly node is provided on the arc-shaped structure.
7. A combined assembly device for marine engine frame parts according to claim 6, characterized in that: A groove structure is provided on one end of the pipeline mounting flange tooling away from the arc structure, and the pipeline mounting flange on the side panel of the frame is adapted to be arranged in the groove structure.
8. A combined assembly device for marine engine frame parts according to claim 1, characterized in that: The plurality of slot structures are symmetrically arranged on two parallel straight line frames of the door mounting seat tooling; the plurality of clamping structures are arranged on the arc structure of the door mounting seat tooling close to one end of the oil baffle tooling.
9. A combined assembly device for marine engine frame parts according to claim 1, characterized in that: The oil baffle tooling with a conical structure is arranged on the arc structure at one end of the door mounting seat tooling, the door hinge tooling with a groove structure is arranged on the straight frame on one side of the door mounting seat tooling, and the handle with a strip structure is arranged on the arc structure at the other end of the door mounting seat tooling away from the oil baffle tooling.
10. A method for using a combined assembly device for marine engine frame parts according to any one of claims 1 to 9, characterized in that: include: Install the door mounting fixture on the side panel of the frame and position it through the frame door frame of the No. 1 cylinder; Use the door mounting seat tooling to install and spot weld the door mounting seat on the lower half of the No. 1 cylinder, use the door hinge tooling to assemble the door hinge, and use the handle to manually assemble the handle; By combining the tooling combination nodes of the platform assembly tooling and the pipeline installation flange tooling with the door installation tooling, the platform, lifting lugs and pipeline installation flange of the No. 1 cylinder are assembled respectively; Assemble the platform, lifting lugs and pipeline mounting flanges and spot weld them in place. After removing the platform assembly tooling and pipeline mounting flange tooling, use the door assembly tooling to re-assemble the door mounting seat and oil baffle plate on the upper half of the No. 1 cylinder and spot weld them in place. Repeat the above steps using the modular assembly tool to assemble and spot weld the relevant parts of cylinders 2 to 6 respectively; After spot welding the walkway and lifting lug of the sixth cylinder, mirror the walkway assembly tooling and assemble and spot weld the walkway and lifting lug of the seventh cylinder.