A marine gas exhaust shell clamping tool

Abstract

The utility model belongs to mechanical frock technical field, concretely relates to a marine gas exhaust shell clamping frock, including work table and clamping table, be provided with the butt joint seat on the work table, clamping table with butt joint seat can detachable connection, be fixed with annular mounting plate on clamping table, the outer ring mounting hole and the inner ring mounting hole for adapting different specifications gas exhaust shell are arranged along the ring circumference array on the mounting plate upper surface, the outer ring mounting hole with the inner ring mounting hole match with the bottom plate hole of gas exhaust shell, and are connected through the bolt.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical tooling technology, and more specifically, it relates to a clamping tool for marine gas exhaust shells. Background Technology

[0002] In marine propulsion systems, the exhaust casing, as a key high-temperature pressure-bearing component of the turbocharger, has a complex structure and large size. During manufacturing, assembly, or testing, this component needs to be stably and accurately clamped onto the worktable. Traditional clamping methods often use custom-made special fixtures, which are only suitable for a single model of exhaust casing. When changing to different specifications, new fixtures need to be redesigned and installed, resulting in low clamping efficiency and poor repeatability, making it difficult to meet the needs of modern marine diesel engine multi-model, small-batch flexible production.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a marine gas exhaust shell clamping tool to achieve a more practical purpose. Utility Model Content

[0004] In view of the problems mentioned in the background art above, this utility model provides a marine gas exhaust shell clamping tool.

[0005] The technical solution adopted by this utility model is as follows: A marine gas exhaust shell clamping fixture includes a worktable and a clamping platform. A docking seat is provided on the worktable, and the clamping platform is detachably connected to the docking seat. An annular mounting plate is fixedly provided on the clamping platform. The upper surface of the mounting plate is provided with an outer ring mounting hole and an inner ring mounting hole arranged in an array around the circumference to adapt to gas exhaust shells of different specifications. The outer ring mounting hole and the inner ring mounting hole match the bottom plate hole of the gas exhaust shell and are connected by bolts.

[0006] Furthermore, it also includes locating pins for insertion into at least two non-adjacent outer ring mounting holes and / or inner ring mounting holes.

[0007] Furthermore, a zero-point positioning system is installed on the docking seat, and a docking column corresponding to the zero-point positioning system is provided at the bottom of the clamping platform.

[0008] Furthermore, the docking seat is provided with at least two guide posts, and the clamping platform is provided with guide holes that match the guide posts.

[0009] Furthermore, the mounting plate is provided with reinforcing ribs.

[0010] Furthermore, a lifting ring is provided around the outer peripheral wall of the docking seat.

[0011] The beneficial effects of this utility model are:

[0012] By modularizing the clamping function and separating the docking seat from the clamping table, the same worktable can be compatible with multiple clamping tables. Furthermore, the annular mounting plate simultaneously features inner and outer ring mounting holes, directly corresponding to the common bottom plate hole distributions of two or more specifications for marine gas exhaust casings. This dual-ring hole layout eliminates the need to replace the entire tooling; only the corresponding ring hole position needs to be selected for adaptation. Therefore, during clamping, operators can flexibly select either the outer or inner ring mounting holes for bolt tightening based on the actual exhaust casing model, significantly improving the tooling's versatility and applicability. Simultaneously, because the clamping table is a self-contained module that can be pre-assembled with the corresponding exhaust casing, only quick docking with the worktable is required on-site, avoiding the tedious operation of individually aligning holes on the machine tool. This shortens clamping preparation time and reduces equipment downtime losses caused by frequent changes to specialized fixtures, providing an efficient and reliable clamping foundation for the flexible manufacturing of diverse, small-batch marine power components. Attached Figure Description

[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of the gas exhaust shell clamping mechanism of this utility model;

[0015] Figure 2 This is a schematic diagram of an angle for the marine gas exhaust casing clamping tool of this utility model.

[0016] Figure 3 This is a schematic diagram of another new type of angle for the practical marine gas exhaust shell clamping fixture.

[0017] The attached diagram is labeled as follows:

[0018] Workbench 1, clamping table 2, docking column 21, guide hole 22, annular mounting plate 3, reinforcing rib plate 31, outer ring mounting hole 32, inner ring mounting hole 33, positioning pin 4, docking seat 5, zero point positioning system 51, guide column 52, lifting ring 53, gas exhaust shell 6. Detailed Implementation

[0019] like Figures 1-3 As shown, a marine gas exhaust casing clamping fixture includes a worktable 1 and a clamping platform 2. The worktable 1 is provided with a docking seat 5. The clamping platform 2 is detachably connected to the docking seat 5. An annular mounting plate 3 is fixedly provided on the clamping platform 2. The upper surface of the mounting plate is provided with an outer ring mounting hole 32 and an inner ring mounting hole 33 arranged in an array around the circumference to adapt to gas exhaust casings 6 of different specifications. The outer ring mounting hole 32 and the inner ring mounting hole 33 match the bottom plate holes of the gas exhaust casing 6 and are connected by bolts.

[0020] By adopting the above technical solution, the clamping function is modularized, and the docking seat 5 and the clamping table 2 are set separately. On the one hand, the same worktable 1 can be compatible with multiple clamping tables 2. On the other hand, the annular mounting plate 3 is equipped with inner ring mounting holes 33 and outer ring mounting holes 32, which directly correspond to the two or more common bottom plate hole distributions of marine gas exhaust shells 6. This double-ring hole layout does not require replacing the entire tooling; only the hole positions of the corresponding ring layer need to be selected for adaptation. Therefore, during the clamping process, the operator can flexibly select the outer ring or inner ring mounting holes 33 for bolt tightening according to the actual exhaust shell model, which significantly improves the versatility and applicability of the tooling. At the same time, since the clamping table 2 is an independent module that can be pre-assembled with the corresponding exhaust shell, only a quick docking with the worktable 1 needs to be completed on site, avoiding the tedious operation of aligning and finding holes one by one on the machine tool. This shortens the clamping preparation time and reduces equipment downtime losses caused by frequent changes of special fixtures, providing an efficient and reliable clamping foundation for the flexible manufacturing of multiple varieties and small batches of marine power components.

[0021] As a preferred embodiment, a locating pin 4 is also included, which is used to insert into at least two non-adjacent outer ring mounting holes 32 and / or inner ring mounting holes 33. High-precision initial positioning can be completed before bolt pre-tightening, significantly reducing the phenomenon of forced bolt tightening caused by hole alignment deviation. This not only improves clamping reliability but also reduces the risk of thread damage, thereby ensuring repeatability and operational safety during the clamping process.

[0022] As a preferred embodiment, a zero-point positioning system 51 is installed on the docking seat 5, and a docking post 21 corresponding to the zero-point positioning system 51 is provided at the bottom of the clamping table 2. Integrating the zero-point positioning system 51 on the docking seat 5 and configuring a matching docking post 21 at the bottom of the clamping table 2 forms a standardized quick interface between the clamping table 2 and the worktable 1.

[0023] As a preferred embodiment, the docking seat 5 is provided with at least two guide posts 52, and the clamping platform 2 is provided with guide holes 22 that match the guide posts 52. The provision of at least two guide posts 52 on the docking seat 5 and the provision of matching guide holes 22 on the clamping platform 2 constitute a mechanical guiding mechanism. When the clamping platform 2 approaches the docking seat 5, the guide posts 52 first enter the guide holes 22, providing coarse guidance for their relative position and preventing the docking posts 21 from skewing or colliding with the zero-point positioning system 51.

[0024] As a preferred embodiment, the mounting plate is provided with a reinforcing rib 31. The reinforcing rib 31, by increasing the moment of inertia of the cross-section and distributing the load transmission path, suppresses the elastic deflection of the mounting plate under stress. This maintains the integrity of the surface contact between the exhaust shell bottom plate and the mounting plate, and also avoids structural fatigue cracking caused by localized stress concentration, thereby extending the service life of the clamping fixture and ensuring clamping stability.

[0025] As a preferred embodiment, lifting rings 53 are provided around the outer periphery of the docking seat 5. The lifting rings 53 provided around the outer periphery of the docking seat 5 provide a standardized lifting and stress point for the entire clamping fixture. Because the marine gas exhaust casing 6 and its clamps are quite heavy, frequent handling requires the use of overhead cranes or hoisting equipment; without dedicated lifting points, operators often need to temporarily bind or hook non-load-bearing structures, which can easily cause the fixture to tip over, collide, or suffer structural damage.

[0026] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A marine gas exhaust casing clamping fixture, characterized in that: Includes a workbench (1), on which a docking seat (5) is provided. Clamping platform (2), the clamping platform (2) is detachably connected to the docking seat (5), and an annular mounting plate (3) is fixedly installed on the clamping platform (2). The upper surface of the mounting plate is provided with an outer ring mounting hole (32) and an inner ring mounting hole (33) arranged in an array around the circumference to adapt to different specifications of gas exhaust shells; The outer ring mounting hole (32) and the inner ring mounting hole (33) are matched with the bottom plate hole of the gas exhaust shell and are connected by bolts.

2. The marine gas exhaust casing clamping fixture according to claim 1, characterized in that: It also includes a locating pin (4) for insertion into at least two non-adjacent outer ring mounting holes (32) and / or inner ring mounting holes (33).

3. The marine gas exhaust casing clamping fixture according to claim 1, characterized in that: The docking seat (5) is equipped with a zero-point positioning system (51), and the bottom of the clamping platform (2) is provided with a docking post (21) corresponding to the zero-point positioning system (51).

4. The marine gas exhaust casing clamping fixture according to claim 3, characterized in that: The docking seat (5) is provided with at least two guide posts (52), and the clamping platform (2) is provided with guide holes (22) that match the guide posts (52).

5. The marine gas exhaust casing clamping fixture according to claim 1, characterized in that: The mounting plate is provided with a reinforcing rib plate (31).

6. The marine gas exhaust casing clamping fixture according to claim 1, characterized in that: A lifting ring (53) is provided around the outer peripheral wall of the docking seat (5).

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