A diesel engine frame single-piece welding tool and method

Abstract

The present invention provides a diesel engine frame monolithic assembly welding tool and method, belonging to the technical field of marine diesel engine production, including an integrated tool, a fixed bracket and a workbench, wherein the integrated tool is fixed on the workbench by the fixed bracket; the integrated tool includes an ear plate integrated tool and a web plate integrated tool, wherein the ear plate integrated tool is provided with a plurality of ear plate limit blocks, and the web plate integrated tool is provided with a plurality of web plate limit blocks. The various parts on the frame monolithic can be positioned before welding, and the size requirements of all frame monolithic can be guaranteed by confirming the assembly size once, thereby greatly improving the production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of marine diesel engine production, and in particular relates to a diesel engine frame single-piece welding tool and method. Background Art

[0002] The marine diesel engine frame is composed of 7 diesel engine frame monoliths. When assembling and welding the marine diesel engine frame, the production process has always been to assemble the 7 frame monoliths in sequence, lift the parts required for welding each frame monolith separately, and assemble them piece by piece according to the drawing dimensions. Each time the frame monolith is assembled and welded, the assembly dimensions need to be reconfirmed, which wastes a lot of manpower and material resources and seriously affects the production efficiency. Summary of the invention

[0003] In view of the defects or shortcomings in the prior art, the present invention provides a diesel engine frame single-piece assembly welding tool and method, which can position the various parts on the frame single piece before welding. The assembly size only needs to be confirmed once to ensure the size requirements of all frame single pieces, thereby greatly improving production efficiency.

[0004] In order to achieve the above objectives, the present disclosure adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the present disclosure provides a diesel engine frame monolithic assembly welding tool, comprising an integrated tool, a fixed bracket and a workbench, wherein the integrated tool is fixed on the workbench by the fixed bracket;

[0006] The integrated tooling includes an ear plate integrated tooling and a web plate integrated tooling. The ear plate integrated tooling is provided with a plurality of ear plate limiting blocks, and the web plate integrated tooling is provided with a plurality of web plate limiting blocks.

[0007] Furthermore, the ear plate integrated tooling and the web plate integrated tooling are both frame structures, the width of the ear plate integrated tooling is smaller than the width of the ear plate, and the width of the web plate integrated tooling is smaller than the width of the web plate.

[0008] Furthermore, there are three ear plate limit blocks, which are respectively arranged on the upper surface of the ear plate integrated tooling, and the height of the ear plate limit blocks is greater than the height of the seven superimposed ear plates.

[0009] Furthermore, there are two web limit blocks, which are respectively arranged on the upper surface of the web integrated tooling, and the height of the web limit blocks is greater than the height of the seven webs stacked.

[0010] Furthermore, the fixed bracket includes an ear plate tooling bracket and a web plate tooling bracket, and the web plate tooling bracket is provided with two, respectively supporting the upper and lower ends of the web plate integrated tooling; the ear plate tooling bracket includes two, respectively supporting the upper and lower ends of the ear plate integrated tooling.

[0011] Furthermore, the cross-section of the web tooling bracket is "U"-shaped, including a bottom rod and vertical rods arranged at both ends of the bottom rod, the vertical rods are arranged perpendicular to the bottom rod, and the distance between the two vertical rods is the same as the width of the web integrated tooling.

[0012] Furthermore, the ear plate tooling bracket includes a bottom rod and vertical rods arranged at both ends of the bottom rod, the bottom rod is "H"-shaped, the vertical rod and the bottom rod are arranged vertically, and the distance between the two vertical rods is the same as the width of the ear plate integrated tooling.

[0013] Furthermore, a plurality of T-slots are arranged on the upper surface of the workbench, the plurality of T-slots are arranged in parallel, and the length of the T-slots is the same as the length of the workbench, and the T-slots run through both ends of the workbench.

[0014] Furthermore, a T-block is placed in the T-slot, the T-block can slide along the length direction of the T-slot, a bolt hole is provided in the middle of the T-block, and the T-block is connected to the bottom of the fixing bracket by bolts.

[0015] In a second aspect, an embodiment of the present disclosure provides a method for single-piece assembly welding of a diesel engine frame, using the above-mentioned single-piece assembly welding tool for a diesel engine frame, comprising the following steps:

[0016] First, place 14 ear plates on two ear plate integrated fixtures, with 7 ear plates placed on each ear plate integrated fixture, and position the 7 ear plates through the stop blocks. Place 7 web plates on the web plate integrated fixture, and position the 7 web plates through the stop blocks;

[0017] Then place the fixed bracket on the workbench, and then hoist the ear plate integrated tooling and the web plate integrated tooling to the corresponding fixed brackets respectively, and use the T-slots and T-blocks on the workbench to adjust the relative positions of the ear plate integrated tooling and the web plate integrated tooling;

[0018] Place the guide plate between the web plate and the ear plate, place the bottom plate at the bottom of the ear plate, adjust the positions of the guide plate and the ear plate, weld the ear plate, web plate, guide plate and bottom plate along the weld seam, and lift the welded diesel engine frame to other workstations for subsequent assembly;

[0019] Continue to place the guide plate and the bottom plate and weld them until all seven diesel engine frame monoliths are welded.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting limit blocks on the ear plate integrated device and the web plate integrated device, multiple ear plates and web plates required for welding of the diesel engine frame can be positioned, avoiding time waste caused by multiple positioning.

[0022] 2. Through the coordination of the fixed bracket and the workbench, the assembly dimensions of all parts on the diesel engine frame can be adjusted before welding, avoiding multiple confirmations of assembly dimensions during separate welding, which affects work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the monolithic overall structure of a diesel engine frame in an embodiment of the present disclosure;

[0024] Figure 2 This is a schematic diagram of the overall structure of the welding tool in Example 1 of the present disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of the middle ear plate integrated tooling according to Embodiment 1 of the present disclosure;

[0026] Figure 4 This is a schematic diagram of the web plate integrated tooling structure in Example 1 of the present disclosure;

[0027] Figure 5 This is a schematic diagram of the welding method of the welding tool in Example 1 of the present disclosure;

[0028] Among them, 1. ear plate; 2. belly plate; 3. guide plate; 4. bottom plate; 5. workbench; 6. ear plate integrated tooling; 7. belly plate integrated tooling; 8. ear plate limit block; 9. belly plate limit block; 10. belly plate tooling bracket; 11. ear plate tooling bracket; 12. T-slot; 13. baffle. DETAILED DESCRIPTION

[0029] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.

[0030] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present disclosure. Unless otherwise specified, all technical and scientific terms used in the present disclosure have the same meanings as those commonly understood by those skilled in the art to which the present disclosure belongs.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless otherwise explicitly stated in the present disclosure, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or their combinations;

[0032] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present disclosure, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present disclosure.

[0033] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and the like in the present disclosure should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0034] The marine diesel engine frame monolithic piece disclosed in the present invention is as follows Figure 1 As shown, it includes an ear plate 1, a web plate 2, a guide plate 3 and a bottom plate 4, wherein there are two guide plates 3 and two ear plates 1, the two guide plates 3 are arranged in parallel, the web plate 2 is arranged between the two guide plates 3, the web plate 2 is arranged perpendicular to the two guide plates 3, the ear plates 1 are arranged on both sides of the two guide plates 3, and the bottom plate 4 is arranged at the bottom end of the ear plate 1.

[0035] Example 1

[0036] A typical implementation of the present disclosure is as follows: Figure 2-Figure 5 As shown, a diesel engine frame single-piece welding tool is provided, including an integrated tool, a fixed bracket and a workbench 5, the integrated tool includes an ear plate integrated tool 6 and a web plate integrated tool 7, the ear plate integrated tool 6 is provided with a plurality of ear plate limit blocks 8, the ear plate limit blocks 8 can position the ear plate 1 placed on the ear plate integrated tool 6, the web plate integrated tool 7 is provided with a plurality of web plate limit blocks 9, the web plate limit blocks 9 can position the web plate 2 placed on the web plate integrated tool 7, and the fixed bracket is used to fix the integrated tool on the workbench 5.

[0037] The ear plate integrated tooling 6 is a frame structure, consisting of two mutually parallel vertical beams and a plurality of horizontal beams perpendicular to the vertical beams. The width of the ear plate integrated tooling 6 is smaller than the width of the ear plate 1. There are three ear plate limit blocks 8, which are respectively arranged on the upper surface of the horizontal beam or the vertical beam of the ear plate integrated tooling 6. The height of the ear plate limit blocks 8 is greater than the height of the seven superimposed ear plates 1. The ear plate limit blocks 8 respectively position the hypotenuse and the bottom edge of the ear plate 1, so as to align the multiple ear plates 1 placed on the ear plate integrated tooling 6, and ensure that the side edge of the ear plate 1 opposite to the hypotenuse is parallel to the vertical edge of the ear plate integrated tooling 6.

[0038] The web plate integrated tooling 7 is a frame structure, which is composed of two vertical beams parallel to each other and multiple horizontal beams perpendicular to the vertical beams. The width of the web plate integrated tooling 7 is smaller than the width of the web 2. There are two web plate limit blocks 9, which are respectively arranged on the upper surface of the web plate integrated tooling 7. The height of the web plate limit blocks 9 is greater than the height of the seven web plates 2 stacked together. The web plate limit blocks 9 position the top of the web 2, so as to align the multiple web plates 2 placed on the web plate integrated tooling 7 and ensure that the side edges of the web plates 2 are parallel to the vertical beams of the web plate integrated tooling 7.

[0039] The fixed bracket is placed at the bottom of the integrated tooling to support the integrated tooling and can fix the integrated tooling on the workbench. The fixed bracket includes a web tooling bracket 10 and an ear plate tooling bracket 11. The web tooling bracket 10 is provided with two, respectively supporting the upper and lower ends of the web integrated tooling 7. The cross-section of the web tooling bracket 10 is "U"-shaped, including a bottom rod and vertical rods arranged at both ends of the bottom rod. The vertical rod is vertically arranged to the bottom rod, and the distance between the two vertical rods is the same as the width of the web integrated tooling 7, so that the web integrated tooling 7 can be placed above the bottom rod between the two vertical rods, thereby supporting and fixing the web integrated tooling 7.

[0040] There are two ear plate tooling brackets 11, which respectively support the upper and lower ends of the ear plate integrated tooling 6. The ear plate tooling bracket 11 includes a bottom rod and vertical rods arranged at both ends of the bottom rod. The bottom rod is "H"-shaped, and the vertical rod is vertically arranged to the bottom rod. The distance between the two vertical rods is the same as the width of the ear plate integrated tooling 6, so that the ear plate integrated tooling 6 can be placed above the bottom rod between the two vertical rods, thereby supporting and fixing the ear plate integrated tooling 6.

[0041] The bottom rod heights of the ear plate fixture bracket 10 and the web plate fixture bracket 11 are the same, so that the upper surfaces of the ear plate integrated fixture 6 and the web plate integrated fixture 7 placed on the fixed bracket are located in the same plane, ensuring that the ear plate 1 and the web plate 2 placed on the integrated fixture are located in the same plane, thereby meeting the structural requirements of the single-piece diesel engine frame.

[0042] It is known that the integrated tooling may not be placed between the two vertical rods of the fixed bracket, and may be adjusted according to specific circumstances, as long as the fixed bracket can ensure stable support of the integrated tooling.

[0043] The upper surface of the workbench 5 is provided with a plurality of T-slots 12, which are arranged in parallel, and the length of the T-slots 12 is the same as the length of the workbench 5, and passes through both ends of the workbench 5, and a T-block is placed in the T-slot 12, and the T-block can slide along the length direction of the T-slot 12, and a bolt hole is arranged in the middle of the T-block, and the T-block is connected to the bottom of the fixed bracket by bolts, so as to fix the fixed bracket on the workbench. Through the arrangement of the T-slots 12 and the T-blocks, the fixed position of the fixed bracket on the workbench can be flexibly adjusted.

[0044] The fixed bracket can be fixed on the workbench 5 and support the integrated tooling. The position of the fixed bracket on the workbench 5 is adjusted according to the drawing, so that the two ear plate integrated toolings 6 are placed on both sides of the web integrated tooling 7, and it is ensured that the multiple ear plates 1 placed on the ear plate integrated tooling 6 are at a certain distance from the multiple web plates 2 placed on the web integrated tooling 7, and the distance is equal to the thickness of the guide plate 3, so that the guide plate 3 can be placed between the web 2 and the ear plate 1.

[0045] A baffle 13 is also provided on the ear plate fixture bracket 11 supporting the bottom end of the ear plate integrated fixture 6 , and the baffle 13 can position the bottom plate 4 so that the bottom plate 4 is close to the bottom end of the ear plate 1 .

[0046] Example 2

[0047] This embodiment provides a method for single-piece assembly welding of a diesel engine frame, using the single-piece assembly welding tool for the diesel engine frame as described in Example 1.

[0048] The following steps are involved:

[0049] First, the 14 ear plates required for welding the diesel engine frame are placed on two ear plate integrated fixtures, with 7 ear plates placed on each ear plate integrated fixture, and the 7 ear plates are positioned using limit blocks to ensure that the 7 ear plates are aligned with each other. The 7 web plates described in the welding of the 7 diesel engine frames are placed on the web plate integrated fixture, and the 7 web plates are positioned using limit blocks to ensure that the 7 web plates are aligned with each other.

[0050] Place the fixed bracket on the workbench, lift the ear plate integrated tooling and the web plate integrated tooling to the corresponding fixed brackets respectively, and use the T-slots and T-blocks on the workbench to adjust the relative positions of the ear plate integrated tooling and the web plate integrated tooling so that the ear plates and web plates placed thereon meet the requirements of the drawings.

[0051] Place the guide plate between the web plate and the ear plate. Since the positions of the web plate and the ear plate are fixed, use the web plate and the ear plate to fix the guide plate. Place the bottom plate at the bottom of the ear plate and fix the bottom plate with the baffle. Adjust the positions of the guide plate and the ear plate to meet the requirements of the drawing.

[0052] The ear plates, web plates, guide rail plates and bottom plates are welded along the weld seams, and the welded diesel engine frame is hoisted to other workstations for subsequent assembly.

[0053] Continue to place the guide plate and the bottom plate and weld them until all seven diesel engine frame monoliths are welded.

[0054] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A diesel engine frame single-piece welding tool, the diesel engine frame single piece includes an ear plate, a web plate, a guide plate and a bottom plate, the guide plate and the ear plate are both two, the two guide plates are arranged in parallel, the web plate is arranged between the two guide plates, the web plate and the two guide plates are arranged vertically, the ear plates are arranged on both sides of the two guide plates, and the bottom plate is arranged at the bottom end of the ear plates, characterized in that: The diesel engine frame single-piece assembly welding tool comprises an integrated tool, a fixed bracket and a workbench, and the integrated tool is fixed on the workbench by the fixed bracket; The integrated tooling includes an ear plate integrated tooling and a web plate integrated tooling, the ear plate integrated tooling is provided with a plurality of ear plate limit blocks, and the web plate integrated tooling is provided with a plurality of web plate limit blocks; The ear plate limiting block is used to position the ear plate on the ear plate integrated tooling; The web limit block is used to position the web on the web integrated tooling; The ear plate integrated tooling and the web plate integrated tooling are both frame structures, the width of the ear plate integrated tooling is smaller than the width of the ear plate, and the width of the web plate integrated tooling is smaller than the width of the web plate; There are three ear plate limit blocks, which are respectively arranged on the upper surface of the ear plate integrated tooling, and the height of the ear plate limit blocks is greater than the height of the seven ear plates stacked together; There are two web limit blocks, which are respectively arranged on the upper surface of the web integrated tooling, and the height of the web limit blocks is greater than the height of the seven webs stacked; The fixed bracket includes an ear plate fixture bracket and a web plate fixture bracket, wherein two web plate fixture brackets are provided to respectively support the upper and lower ends of the web plate integrated fixture; the ear plate fixture bracket includes two brackets to respectively support the upper and lower ends of the ear plate integrated fixture; The cross section of the web tooling bracket is "U"-shaped, including a bottom bar and vertical bars arranged at both ends of the bottom bar, the vertical bars are arranged perpendicular to the bottom bar, and the distance between the two vertical bars is the same as the width of the web integrated tooling; The ear plate fixture bracket includes a bottom bar and vertical bars arranged at both ends of the bottom bar, the bottom bar is "H" shaped, the vertical bars are arranged vertically to the bottom bar, and the distance between the two vertical bars is the same as the width of the ear plate integrated fixture; A baffle is also provided on the ear plate tooling bracket supporting the bottom end of the ear plate integrated tooling, and the baffle can position the bottom plate so that the bottom plate is close to the bottom end of the ear plate.

2. A diesel engine frame single-piece welding tool as claimed in claim 1, characterized in that: The upper surface of the workbench is provided with a plurality of T-slots, which are arranged in parallel, and the length of the T-slots is the same as the length of the workbench, and the T-slots run through both ends of the workbench.

3. A diesel engine frame single-piece welding tool as claimed in claim 2, characterized in that: A T-block is placed in the T-slot, and the T-block can slide along the length direction of the T-slot. A bolt hole is arranged in the middle of the T-block, and the T-block is connected to the bottom of the fixing bracket through bolts.

4. A diesel engine frame monolithic assembly welding method, using the diesel engine frame monolithic assembly welding tool as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: First, 14 ear plates are placed on two ear plate integrated fixtures, 7 ear plates are placed on each ear plate integrated fixture, and the 7 ear plates are positioned by limit blocks; 7 web plates are placed on the web plate integrated fixture, and the 7 web plates are positioned by limit blocks; Then place the fixed bracket on the workbench, and then hoist the ear plate integrated tooling and the web plate integrated tooling to the corresponding fixed brackets respectively, and use the T-slots and T-blocks on the workbench to adjust the relative positions of the ear plate integrated tooling and the web plate integrated tooling; Place the guide plate between the web plate and the ear plate, place the bottom plate at the bottom of the ear plate, adjust the positions of the guide plate and the ear plate, weld the ear plate, web plate, guide plate and bottom plate along the weld seam, and lift the welded diesel engine frame to other workstations for subsequent assembly; Continue to place the guide plate and the bottom plate and weld them until all seven diesel engine frame monoliths are welded.

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