Marine engine frame single piece correction tool

Abstract

The utility model discloses a marine engine frame single piece correcting tool which comprises a supporting device and a fastening device. The fastening device is fixedly connected to the supporting device. The supporting device is used for bearing and fixing the rack single piece; the fastening device is used for secondarily fixing the rack single piece on the supporting device; the supporting device comprises a supporting frame and a base, the supporting frame is welded to the base, and the supporting frame is formed by welding and connecting a plurality of vertical rods and a plurality of transverse rods in a vertically staggered mode; a bottom plate of the rack single piece is placed on the base, and a plurality of positioning holes matched with holes of the rack single piece are formed in the supporting frame. According to the utility model, the frame single piece can be more stably fixed on the supporting device, the frame single piece is prevented from toppling over to the greatest extent during flame correction, meanwhile, a crane does not need to be used in the whole process, the danger that the frame single piece topples over due to the problem of the crane is avoided, the utilization rate of the crane can be improved, and the production progress is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engines, in particular to a single-piece correction tool for a marine engine frame. Background Art

[0002] The marine engine frame is a crucial supporting structure for marine engines, providing a mounting base and support for the various engine components, ensuring engine stability during operation. An engine frame monolithic element refers to the individual sheet-like structural components that make up the engine frame. During the manufacturing process of the engine frame monolithic element, deformation may occur due to various factors, such as thermal stress generated by the welding process, internal stress in the material itself, and cutting forces during machining. This deformation may affect the dimensional and shape accuracy of the monolithic element, and thus the assembly accuracy and performance of the entire engine frame. In order to avoid affecting the assembly accuracy and performance of the engine frame, the engine frame monolithic element needs to be corrected. Flame straightening, as one of the most common correction methods in this field, can effectively eliminate or reduce these deformations.

[0003] Currently, flame correction of a single engine frame requires the use of a crane to maintain the frame in an upright position, while operators use flames on both sides to adjust the shape. This method poses safety risks. For example, if the operator misoperates the crane or the wire rope falls off the hook, the frame can fall over, potentially causing a safety accident. It also affects equipment utilization and production schedules. A typical production workshop typically has three bridge cranes. Currently, a typical workshop produces approximately 160 parts per year, each requiring an average of five flips and hoists, for a total of approximately 800 flips and hoists. Adjusting each frame requires approximately six hours, during which the crane cannot lift other materials. This limits the crane's transfer capacity, slows production, and impacts production schedules. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a single-piece correction tool for a marine engine frame. By providing a supporting device and a fastening device, a crane is not used when flame correction is performed on a single piece of the marine engine frame, thereby avoiding the risk of the frame single piece tipping over due to crane problems, and can improve the utilization rate of the crane and speed up the production progress.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A single-piece calibration fixture for a marine engine frame comprises a support device and a fastening device; the fastening device is fixedly connected to the support device. The support device is used to carry and secure the single-piece frame; the fastening device is used to secondary secure the single-piece frame to the support device. The support device comprises a support frame and a base, the support frame being welded to the base and connected by a plurality of vertical and horizontal bars welded in a vertical and staggered manner. The bottom plate of the single-piece frame is placed on the base, and the support frame is provided with a plurality of positioning holes that match the openings of the single-piece frame.

[0007] As a further technical solution, the support frame is a grid-like structure as a whole. Specifically, the plurality of vertical bars are arranged in parallel, and each cross bar is vertically welded to the plurality of vertical bars, wherein the positioning holes are opened on the middle vertical bar.

[0008] As a further technical solution, the positioning holes are distributed vertically, and the inner wall of the positioning hole is provided with a first thread, and a bolt is provided to match the first thread.

[0009] As a further technical solution, the plurality of vertical rods are equidistantly spaced and vertically welded to the base, and the vertical rods and horizontal rods are both rectangular tubes.

[0010] As a further technical solution, the length of the vertical rod is greater than the length of the horizontal rod.

[0011] As a further technical solution, an anti-collision plate is provided on the side of the cross bar facing the frame monolithic piece. The anti-collision plate is parallel to the base and vertically welded to the cross bar to prevent the frame monolithic piece from directly colliding with the support frame when the frame monolithic piece is placed.

[0012] As a further technical solution, the fastening device includes a chain and a clamp, one end of the chain is fixedly connected to the crossbar, and the other end of the chain is connected to the clamp, and the clamp is used to clamp the wing plate of the frame.

[0013] As a further technical solution, the chuck is Type structure, the The structure is provided with a rotating rod, and the A through hole is provided on one side of the shaped structure.

[0014] As a further technical solution, the inner wall of the through hole is provided with a second thread, the rotary rod passes through the through hole and is provided with a third thread, and the third thread matches the second thread.

[0015] As a further technical solution, one end of the rotating rod extends into the In the structure, a handle is welded to the other end of the rotating rod.

[0016] One or more technical solutions of the present invention have the following beneficial effects:

[0017] (1) The present invention is designed with a support device and has multiple sets of positioning holes on the support device. These positioning holes match the openings of the marine engine frame monolithic plate. More precisely, different positioning holes are opened according to the openings of the frame monolithic plate of different models. These positioning holes can match the openings of the frame monolithic plate of different models, achieving universal use for all models. At the same time, the present invention also designs a fastening device, which fixes the marine engine frame monolithic plate to the support device for a second time through a chain and a chuck, so that the frame monolithic plate is fixed to the support device more stably, and the frame monolithic plate is prevented from tipping over during flame correction to the greatest extent.

[0018] (2) The utility model sets a positioning hole on the support device, which is matched with a chain and a clamp. Specifically, the frame single piece can be initially fixed on the support device by passing the bolt through the opening of the frame single piece and the positioning hole on the support device. The clamp clamps the wing plates on both sides of the frame single piece, thereby achieving a secondary fixation of the frame single piece on the support device. It can be seen that the tooling of the utility model has the characteristics of stable structure and high safety, which reduces the operational safety risk; on the other hand, there is no need to use a crane throughout the process to avoid the risk of the frame single piece tipping over due to crane problems, and the crane utilization rate can be improved to speed up the production progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of the single-piece correction tool for a marine engine frame of the present utility model;

[0021] Figure 2 This is a schematic diagram of the correction tool of the utility model when in use;

[0022] Figure 3 This is a schematic diagram of the chuck structure of the single-piece correction tool for a marine engine frame of the present utility model;

[0023] Among them: 1. Vertical bar; 2. Horizontal bar; 3. Positioning hole; 4. Base. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] Example 1

[0026] The utility model provides a single-piece correction tool for a marine engine frame, such as Figure 1 As shown in the structural diagram of the marine engine frame single-piece correction tooling, the correction tooling includes: a supporting device and a fastening device. The fastening device is fixedly connected to the supporting device. The supporting device is used to carry and fix the frame single piece to achieve preliminary fixation of the marine engine frame single piece; the fastening device is used to fix the marine engine frame single piece to the supporting device for a secondary time. Specifically: the supporting device includes a supporting frame and a base 4, and the supporting frame is welded to the base 4. Before flame correction, a crane is used to transport the frame monolith to the supporting device. Specifically, the bottom plate of the frame monolith is placed on the base 4, and the supporting frame is connected by a plurality of vertical rods 1 and a plurality of horizontal rods 2 vertically and staggeredly welded. Specifically: the supporting frame as a whole is a grid structure, and a plurality of vertical rods 1 are arranged in parallel, and each horizontal rod is vertically welded to a plurality of vertical rods, and a plurality of vertical rods 1 are equidistant and vertically welded to the base 4. In this embodiment, the vertical rods 1 and the horizontal rods 2 are both rectangular tubes, which are standard structures and do not require special customization. The specific lengths of the vertical rods and the horizontal rods are made according to the length and width of the largest engine model to meet the needs of different models and provide the versatility of the correction tooling. In this embodiment, the length of the vertical rod 1 is greater than the length of the horizontal rod 2.

[0027] To achieve the initial fixation of the rack monolithic plate to the support frame, in this embodiment, the support frame is provided with several positioning holes 3 that match the openings of the rack monolithic plate. Specifically, in this embodiment, there are three vertical rods, which are evenly spaced and vertically welded to the base. The positioning holes 3 are provided on the middle vertical rod and are vertically distributed. Specifically, different positioning holes 3 are provided according to the openings of the rack monolithic plate of different models. These positioning holes 3 can match the openings of the rack monolithic plate of different models, achieving universal use for all models. The inner wall of the positioning hole 3 is provided with a first thread, and a bolt is provided to match the first thread. In this embodiment, the bolt model is specifically M36. At the same time, in this embodiment, an anti-collision plate is provided on the side of the cross bar facing the frame single piece. The anti-collision plate is parallel to the base and vertically welded to the cross bar. It is used to prevent the frame single piece from directly colliding with the support frame when the frame single piece is placed. In this embodiment, in order to improve the anti-collision effect and avoid damage to the frame single piece, two anti-collision plates are symmetrically arranged on each cross plate. The specific anti-collision plates are Q235B steel plates.

[0028] In this embodiment, the fastening device includes a chain and a clamp (the fastening device is set at 2 / 3 of the total longitudinal height of the frame single piece), one end of the chain is fixedly connected to the crossbar, and the other end of the chain is connected to the clamp, which is used to clamp the wing plate of the frame single piece. Specifically: the clamp is Type structure, The structure is provided with a rotating rod, and A through hole is provided on one side of the structure, wherein the inner wall of the through hole is provided with a second thread, the rotating rod passes through the through hole and a third thread is provided on the entire body of the rotating rod, the third thread matches the second thread, and one end of the rotating rod extends into In the structure, a handle is welded on the other end of the rotating rod. Turning the handle can change the direction of the rotating rod. The position of the frame structure is convenient for fastening and disassembling the frame piece. Two sets of fastening devices are provided, fastening the wing plates on both sides of the frame piece respectively, achieving secondary fixation of the marine engine frame piece to the support device, making the frame piece more stably fixed to the support device and preventing the frame piece from tipping over during flame calibration to the greatest extent.

[0029] In the embodiment of the present invention, a single-piece calibration tool for a marine engine frame is described. The working principle of the calibration work when performing single-piece flame calibration of the frame is as follows:

[0030] Before flame correction, rectangular tubes are used as the vertical and horizontal rods of this correction tool. The rectangular tubes are standard structures and do not require special customization. The specific lengths of the vertical and horizontal rods are made according to the length and width of the largest engine model to meet the needs of different models and provide versatility of the correction tool. According to the structure provided by the above-mentioned utility model, the vertical and horizontal rods are welded into a support frame, and the support frame is welded to the base. According to the position of the single-piece opening of the frame of different models, positioning holes matching the openings are opened on the middle vertical rod to ensure that the current models in production are universal, and the fastening device provided by the utility model is welded on the horizontal rod. When performing flame correction, the frame single piece is lifted to the base of this correction tooling by a crane, and the M36 bolts are used to penetrate the openings of the frame single piece and the positioning holes on the support device to preliminarily fix the frame single piece to the support device. The chuck is then used to clamp the wing plates on both sides of the frame single piece to achieve secondary fixation of the frame single piece to the support device. After fixation, flame correction work is carried out without using a crane throughout the process. It is only necessary to use the crane to transport the frame single piece to the base, which improves the crane utilization rate and speeds up the production progress; it avoids safety accidents caused by the frame single piece tipping over due to the crane traveling or the wire rope falling off the hook.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A single-piece correction tool for a marine engine frame, characterized in that: include: Supporting and fastening devices; The fastening device is fixedly connected to the supporting device; The supporting device is used to carry and fix the frame single piece; The fastening device is used to fix the frame piece to the supporting device for a secondary time; The support device includes a support frame and a base, the support frame is welded to the base, and the support frame is connected by a plurality of vertical rods and a plurality of horizontal rods that are vertically staggered and welded; the bottom plate of the single piece of the frame is placed on the base, and the support frame is provided with a plurality of positioning holes that match the openings of the single piece of the frame.

2. A marine engine frame single-piece correction tool according to claim 1, characterized in that: The support frame is a grid-like structure as a whole. Specifically, the plurality of vertical bars are arranged in parallel, and each cross bar is vertically welded to the plurality of vertical bars, wherein the positioning hole is provided on the middle vertical bar.

3. A marine engine frame single-piece correction tool according to claim 2, characterized in that: The positioning holes are distributed vertically, and the inner walls of the positioning holes are provided with first threads, and bolts are provided to match the first threads.

4. A marine engine frame single-piece correction tool according to claim 2, characterized in that: The plurality of vertical bars are equidistantly spaced and vertically welded to the base, and the vertical bars and horizontal bars are both rectangular tubes.

5. A marine engine frame single-piece correction tool according to claim 4, characterized in that: The length of the vertical rod is greater than the length of the horizontal rod.

6. A marine engine frame single-piece correction tool according to claim 2, characterized in that: A collision prevention plate is provided on one side of the crossbar facing the frame monolithic piece. The collision prevention plate is parallel to the base and vertically welded to the crossbar to prevent the frame monolithic piece from directly hitting the support frame when the frame monolithic piece is placed.

7. A marine engine frame single-piece correction tool according to claim 1, characterized in that: The fastening device includes a chain and a clamp, one end of the chain is fixedly connected to the crossbar, and the other end of the chain is connected to the clamp, and the clamp is used to clamp the wing plate of the frame.

8. A marine engine frame single-piece correction tool according to claim 7, characterized in that: The chuck is "Type structure, the" "The structure is provided with a rotary rod, and the " A through hole is provided on one side of the "-shaped structure.

9. A marine engine frame single-piece correction tool according to claim 8, characterized in that: The inner wall of the through hole is provided with a second thread, the rotating rod passes through the through hole and is provided with a third thread, and the third thread matches the second thread.

10. A marine engine frame single-piece correction tool according to claim 8, characterized in that: One end of the rotating rod extends into the In the "type structure, a handle is welded to the other end of the rotating rod.

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