CN113927249A

CN113927249A - Efficient three-dimensional composite processing device and method for V-shaped engine body of large marine diesel engine

Info

Publication number: CN113927249A
Application number: CN202111220224.XA
Authority: CN
Inventors: 田锐敏; 杨武刚; 杨帆; 杨天锋
Original assignee: Shannxi Diesel Engine Heavy Industry Co Ltd
Current assignee: Shannxi Diesel Engine Heavy Industry Co Ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-01-14

Abstract

The utility model provides a high-efficient three-dimensional composite processing device of large-scale marine diesel engine V-arrangement organism and method thereof, fix the base on the bottom plate and the layer board rotates with the base to be connected, the V-arrangement organism is located the layer board, be equipped with on the layer board and be used for carrying out the location clamping mechanism that presss from both sides tight fixed to the V-arrangement organism, be equipped with the width adjustable supporting mechanism that upper end and layer board adaptation are connected and are used for carrying out the support to layer board and V-arrangement organism on the bottom plate, be equipped with the tilting mechanism who is connected with the layer board on the bottom plate, and the layer board realizes the adjustment to the V-arrangement organism machined surface that is fixed in on the layer board under tilting mechanism's drive. The invention thoroughly improves the situations of low production efficiency and unstable product processing precision caused by the current processing method, realizes the efficient three-dimensional composite processing of large-scale complex box parts by using the matched tool, can realize the accuracy and stability of the space size of key elements of the V-shaped machine body, improves the product processing quality, and has wider application field and better popularization value.

Description

Efficient three-dimensional composite processing device and method for V-shaped engine body of large marine diesel engine

Technical Field

The invention belongs to the technical field of machining of diesel engine bodies, and particularly relates to an efficient three-dimensional composite machining device and method for a V-shaped engine body of a large marine diesel engine.

Background

The engine body is a large box part with the most complex size structure in the marine diesel engine parts, and is an assembly base body of all parts and accessories. From the structural and functional analysis, the main processing difficulties of the engine body are reflected in the dimensional tolerance and form and position tolerance of three large hole systems (namely a crankshaft hole, a camshaft hole and a cylinder hole), and serious quality accidents such as shaft holding, cylinder pulling and the like are very likely to occur due to slight deviation; for a long time, the traditional process method is adopted for machining the cylinder hole of the V-shaped machine body, the angle of the cylinder hole is adjusted by utilizing a tooling angle iron (the cylinder hole is usually adjusted to be in a vertical state), the process device (tooling angle iron) is original and heavy, the process reference alignment is difficult, the machining precision of the cylinder hole is mainly ensured by the machine body alignment precision and the machine tool precision, in addition, the problems that the product quality is affected by collision, deformation and the like are easily caused by frequently lifting, overturning and clamping the machine body in the machining process, the machining time of the machine tool is occupied, and the capacity and the efficiency of a machine body production line are seriously limited, so the improvement is necessary for aiming at the problems.

Disclosure of Invention

The technical problems solved by the invention are as follows: the efficient three-dimensional composite processing device and method for the V-shaped engine body of the large marine diesel engine are characterized in that a supporting plate rotatably mounted on a base, a positioning clamping mechanism used for clamping the V-shaped engine body on the supporting plate, a supporting mechanism with adjustable width and a turnover mechanism are integrated on a bottom plate, so that the horizontal position and the inclined position after forward and reverse rotation of the V-shaped engine body on the premise of reliable supporting are adjusted, the situations of low production efficiency and unstable product processing precision caused by the current processing method are thoroughly improved, efficient three-dimensional composite processing of large complex box parts is realized by using a matched tool, the accuracy and stability of the space size of key elements of the V-shaped engine body can be realized, the product processing quality is improved, and the efficient three-dimensional composite processing device has wide application field and good popularization value.

The technical scheme adopted by the invention is as follows: the high-efficiency three-dimensional composite processing device for the V-shaped engine body of the large marine diesel engine comprises a bottom plate supporting plate and a base located at the bottom of the supporting plate, wherein the base is fixed on the bottom plate, the supporting plate is rotatably connected with the base, the V-shaped engine body is located on the supporting plate, a positioning and clamping mechanism used for clamping and fixing the V-shaped engine body is arranged on the supporting plate, a width-adjustable supporting mechanism which is connected with the supporting plate in an adaptive mode and used for supporting the supporting plate and the V-shaped engine body is arranged on the bottom plate, a turnover mechanism connected with the supporting plate is arranged on the bottom plate, and the supporting plate is driven by the turnover mechanism to adjust the processing surface of the V-shaped engine body fixed on the supporting plate.

The width-adjustable supporting mechanism comprises a left support, a right support and a horizontal oil cylinder, wherein the left support and the right support are respectively located on the left side and the right side of the supporting plate, the lower ends of the left support and the right support are respectively connected with guide rails fixed on the two sides of the bottom plate in an adaptive manner, the horizontal oil cylinder is fixed on the bottom plate at the inner end of the guide rails, the lower ends of the left support and the right support are respectively fixedly connected with the end parts of piston rods of the horizontal oil cylinders at the same side, and the distance between the left support and the right support is adjusted through the two horizontal oil cylinders so that the two sides of the supporting plate are adapted to gaps on the inner side wall of the upper end of the left support and the right support, and the left support and the right support are used for supporting the supporting plate.

Further, the shape is the same left side is supported and right branch and is supported the symmetry and set up on the bottom plate, left side is supported and right branch and is formed by the vertical section at upper and lower both ends and the slope section that will go up the vertical section in both ends and connect as an organic whole, be equipped with the boss that is located upper end vertical section and slope section transitional coupling position on left side support and the right branch support inside wall, the boss forms the breach that is used for the supporting plate with the inner wall of left branch support and the right branch support upper end vertical section, the last plane of left branch support upper end vertical section is the inclined plane parallel with the opposite side upper end inclined plane of V-arrangement organism, the last plane of right branch support upper end vertical section is the inclined plane parallel with the opposite side upper end inclined plane of V-arrangement organism.

Furthermore, the positioning and clamping mechanism comprises a vertical plate, a fixing block and a hand wheel bolt, the vertical plate positioned on two sides of the V-shaped machine body is fixed on the supporting plate, the vertical plate is fixedly connected with the fixing block on the inner side of the vertical plate through the bolt, a through hole in the vertical plate corresponds to and is communicated with a mounting hole in the fixing block, the hand wheel bolt penetrates through the through hole in the vertical plate and is fixedly connected with a clamping block thread in the mounting hole, and the clamping block is stretched out or retracted into the mounting hole through rotating the hand wheel bolt to clamp or loosen the V-shaped machine body.

Furthermore, the turnover mechanism comprises a plurality of turnover assemblies, each turnover assembly is a turnover oil cylinder with two lower ends hinged to the bottom plate, the end parts of piston rods at the upper ends of the two turnover oil cylinders are respectively hinged to two sides of the supporting plate, and the inclination or horizontal position of the supporting plate is adjusted by controlling the turnover oil cylinders at the same side.

Furthermore, the base up end is fixed with the bearing frame, and the bearing frame upper end is located the groove of dodging on the bottom surface of layer board middle part, be fixed with the pivot of being connected with the bearing frame rotation on the layer board, the layer board uses the pivot axis to overturn clockwise or anticlockwise as the center under tilting mechanism's drive.

Furthermore, plane both sides face is the inclined plane I that is parallel with the inclined plane of V-arrangement organism upper end homonymy respectively when the layer board is in horizontal position on the base, the embedded wear-resisting cushion that is located the coplanar with inclined plane I on the inclined plane I, tilting mechanism drive layer board clockwise or anticlockwise upset when layer board supports on base left side inclined plane I or right side inclined plane I, realize that V-arrangement organism upper end right side inclined plane or left side inclined plane are in horizontal position's regulation.

A method for a large marine diesel engine V-shaped body efficient three-dimensional composite processing device comprises the following steps:

1) firstly, starting a turnover oil cylinder in the turnover mechanism to adjust the supporting plate to a horizontal position, and then starting a horizontal oil cylinder in the width-adjustable supporting mechanism to pull the left support and the right support to move in opposite directions to two sides of the supporting plate to be respectively matched with the notches on the inner side walls of the upper ends of the left support and the right support, so as to ensure that the supporting plate is stably supported by the left support and the right support;

2) the crown block hoists and places the V-shaped machine body with the top surface facing upwards on the supporting plate, the V-shaped machine body is aligned and leveled to a processing state, a hand wheel bolt in a positioning and clamping mechanism on the left side and the right side of the V-shaped machine body is adjusted, so that a clamping block connected with the hand wheel bolt clamps the V-shaped machine body, and after the V-shaped machine body is clamped and fixed by the positioning and clamping mechanism, the condition of processing the top plane of the V-shaped machine body is met;

3) after finishing the processing elements of the horizontal station of the V-shaped machine body, starting a horizontal oil cylinder to push a left support and a right support outwards to enable the left support and the right support to move outwards, starting a turnover oil cylinder on the left side in a turnover mechanism to enable a piston rod of the turnover oil cylinder on the right side in the turnover mechanism to extend out, enabling the piston rod of the turnover oil cylinder on the right side in the turnover mechanism to retract, driving a supporting plate to turn over until the bottom surface of the supporting plate contacts with an inclined plane I on the right side of a base, then starting the horizontal oil cylinder on the opposite side of the inclined plane I on the right side of the base, pulling the left support to enable the inclined plane on the upper end of the left support to contact with the bottom surface on the left side of the supporting plate, and supporting the bottom surface of the supporting plate to enable the bottom surface of the supporting plate to have processing conditions of a row of cylinder holes and cylinder holes of the V-shaped machine body;

4) after finishing processing contents of a row of cylinder hole surfaces and cylinder holes of a V-shaped machine body A, starting a left horizontal oil cylinder to outwards push out a left support, starting a piston rod of a right overturning oil cylinder in the overturning mechanism to extend, retracting a piston rod of a left overturning oil cylinder so as to drive a supporting plate to overturn until the bottom surface of the supporting plate contacts with an inclined plane I on the left side of a base, then starting the horizontal oil cylinder on the opposite side of the inclined plane I on the left side of the base, and inwards pulling the right support to enable the inclined plane of the upper end of the right support to contact with the bottom surface on the right side of the supporting plate so as to support the bottom surface of the supporting plate, so that the supporting plate has processing conditions of a row of cylinder hole surfaces and cylinder holes of a V-shaped machine body B;

5) after the machining of the above elements of the V-shaped machine body is completed, the piston rod of the horizontal oil cylinder extends and then pushes the corresponding left support and the right support outwards, the support plate is readjusted to the horizontal position of the V-shaped machine body by the overturning oil cylinder, the left support and the right support corresponding to the horizontal oil cylinder are pulled to lift the support plate and support the support plate stably, the hand wheel bolts on the left side and the right side of the V-shaped machine body are rotated, the clamping blocks loosen the V-shaped machine body, the machined V-shaped machine body is detached, and the machining of the V-shaped machine body is completed.

Compared with the prior art, the invention has the advantages that:

1. according to the technical scheme, the supporting plate rotatably mounted on the base, the positioning and clamping mechanism for clamping the V-shaped machine body on the supporting plate, the supporting mechanism with adjustable width and the turnover mechanism are integrated on the bottom plate, so that the horizontal position and the inclined position after forward and reverse rotation of the V-shaped machine body on the premise of reliable support are adjusted, and the situations of low production efficiency and unstable product processing precision caused by the current processing method are thoroughly improved;

2. according to the technical scheme, on the premise of improving the dimensional accuracy of the spatial hole system of the V-shaped machine body, the auxiliary process content in the machining process of the V-shaped machine body is greatly reduced, the times of lifting and turning over the V-shaped machine body are reduced, and the risks caused by quality problems such as collision, deformation and the like of the V-shaped machine body are reduced;

3. the technical scheme can realize uniform reference and centralized working procedures to a greater extent, and has good process stability; meanwhile, the processing capacity of equipment can be well exerted, the labor intensity of workers is reduced, and the production efficiency is obviously improved;

4. compared with the traditional V-shaped machine body processing mode, the technical scheme realizes a machine body high-efficiency and three-dimensional composite processing mode of one-time clamping and multi-surface processing by changing the machine body clamping mode, and solves the problems of low processing efficiency of a large V-shaped machine body and unstable dimensional precision of key elements;

5. according to the technical scheme, the two side surfaces of the base and the upper end surfaces of the left support and the right support are machined into inclined surfaces parallel to the inclined surfaces on the same side of the V-shaped machine body, and the V-shaped machine body is used for supporting after being turned over so as to work cooperatively at different stations, so that the safety and reliability of the machining process are guaranteed;

6. according to the technical scheme, efficient three-dimensional combined machining of large-scale complex box parts is realized by using the matched tool, the accuracy and stability of the space size of key elements of the V-shaped machine body can be realized, the machining quality of products is improved, and the V-shaped machine body has wide application field and good popularization value.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a schematic diagram illustrating the position of the cylinder bores and the cylinder bores of the row A of the V-shaped block after clockwise rotation according to the present invention;

FIG. 5 is a schematic diagram illustrating the position of the cylinder bores and cylinder bores of the row B of the V-shaped block after the V-shaped block is rotated counterclockwise.

Detailed Description

In the following, an embodiment of the present invention will be described in conjunction with fig. 1 to 5, so as to clearly and completely describe the technical solutions, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

A large marine diesel engine V-shaped body efficient three-dimensional composite processing device, as shown in fig. 1-2, comprising a base plate 1, a supporting plate 2 and a base 3 located at the bottom of the supporting plate 2, wherein the base 3 is fixed on the base plate 1, the supporting plate 2 is rotatably connected with the base 3, the V-shaped body 4 is located on the supporting plate 2, the supporting plate 2 is provided with a positioning and clamping mechanism for clamping and fixing the V-shaped body 4, the base plate 1 is provided with a width-adjustable supporting mechanism, the upper end of the supporting mechanism is connected with the supporting plate 2 in a matching manner, and the supporting mechanism is used for supporting the supporting plate 2 and the V-shaped body 4, the base plate 1 is provided with a turnover mechanism connected with the supporting plate 2, and the supporting plate 2 is driven by the turnover mechanism to adjust the processing surface of the V-shaped body 4 fixed on the supporting plate 2; in the structure, the supporting plate 2 rotatably mounted on the base 3, the positioning and clamping mechanism for clamping the V-shaped machine body 4 on the supporting plate 2, the supporting mechanism with adjustable width and the turnover mechanism are integrated on the bottom plate 1, so that the horizontal position and the inclined position after forward and reverse rotation of the V-shaped machine body 4 under the premise of reliable support are adjusted, and the situations of low production efficiency and unstable product processing precision caused by the current processing method are thoroughly improved; on the premise of improving the dimensional accuracy of the spatial hole system of the V-shaped machine body 4, the auxiliary process content in the machining process of the V-shaped machine body 4 is greatly reduced, the times of lifting and turning over the V-shaped machine body 4 are reduced, and the risks caused by quality problems such as collision, deformation and the like of the V-shaped machine body 4 are reduced;

the specific structure of the width-adjustable supporting mechanism is as follows: the width-adjustable supporting mechanism comprises a left support 5, a right support 6 and horizontal oil cylinders 7, wherein the left support 5 and the right support 6 are respectively positioned at the left side and the right side of the supporting plate 2, the lower ends of the left support 5 and the right support 6 are respectively in adaptive connection with guide rails 8 fixed at the two sides of the bottom plate 1, the horizontal oil cylinders 7 are fixed on the bottom plate 1 at the inner ends of the guide rails 8, the lower ends of the left support 5 and the right support 6 are respectively and fixedly connected with the end parts of piston rods of the horizontal oil cylinders 7 at the same side, and the distance between the left support 5 and the right support 6 is adjusted through the two horizontal oil cylinders 7, so that the two sides of the supporting plate 2 are adaptive to gaps on the inner side walls at the upper ends of the left support 5 and the right support 6, and the supporting of the supporting plate 2 by the left support 5 and the right support 6 is completed; specifically, the shape is the same left branch props 5 and right branch props 6 symmetry and sets up on bottom plate 1, left branch props 5 and right branch props 6 and constitutes by the vertical section at upper and lower both ends and the slope section that will connect as an organic whole vertical section in upper and lower both ends, be equipped with the boss that is located on the vertical section in upper end and the slope section transitional coupling position on the support 6 inside wall of left branch props 5 and right branch props, the boss forms the breach that is used for supporting plate 2 with the inner wall of the vertical section in left branch props 5 and right branch props 6 upper end, the last plane of the vertical section in left branch props 5 upper end is the inclined plane parallel with the opposite side upper end inclined plane of V-arrangement organism 4, the last plane of the vertical section in right branch props 6 upper end is the inclined plane parallel with the opposite side upper end inclined plane of V-arrangement organism 4.

As shown in fig. 3, the specific structure of the positioning and clamping mechanism is as follows: the positioning and clamping mechanism comprises a vertical plate 9, a fixed block 10 and a hand wheel bolt 11, the vertical plate 9 positioned on two sides of the V-shaped machine body 4 is fixed on the supporting plate 2, the vertical plate 9 is fixedly connected with the fixed block 10 on the inner side of the vertical plate 9 through a bolt, a through hole in the vertical plate 9 corresponds to and is communicated with a mounting hole in the fixed block 10, the hand wheel bolt 11 penetrates through a through hole in the vertical plate 9 and is fixedly connected with a clamping block 12 in the mounting hole in a threaded manner, and the clamping block 12 is extended out or retracted into the mounting hole through rotating the hand wheel bolt 11 to clamp or loosen the V-shaped machine body 4.

The turnover mechanism has the following specific structure: the turnover mechanism comprises a plurality of groups of turnover assemblies, the turnover assemblies are two turnover oil cylinders 13 with the lower ends hinged on the bottom plate 1, the end parts of piston rods at the upper ends of the two turnover oil cylinders 13 are respectively hinged on two sides of the supporting plate 2, and the inclination or horizontal position of the supporting plate 2 is adjusted by controlling the turnover oil cylinders 13 at the same side.

The rotary connecting structure of the supporting plate 2 and the base 3 is as follows: a bearing seat 14 is fixed on the upper end face of the base 3, the upper end of the bearing seat 14 is positioned in an avoiding groove on the bottom surface of the middle part of the supporting plate 2, a rotating shaft 15 which is rotationally connected with the bearing seat 14 is fixed on the supporting plate 2, and the supporting plate 2 is driven by the turnover mechanism to turn over clockwise or anticlockwise by taking the axis of the rotating shaft 15 as a center; specifically, the plane both sides face is the inclined plane I16 parallel with the inclined plane of V-arrangement organism 4 upper end homonymy respectively when layer board 2 is in horizontal position on the base 3, it has wear-resisting cushion 17 that is located the coplanar with inclined plane I16 to inlay on inclined plane I16, tilting mechanism drive layer board 2 clockwise or anticlockwise upset when layer board 2 supports on base 3 left side inclined plane I16 or right side inclined plane I16, realize that V-arrangement organism 4 upper end right side inclined plane or left side inclined plane are in horizontal position's regulation.

1) firstly, starting a turnover oil cylinder 13 in the turnover mechanism to adjust the supporting plate 2 to a horizontal position, and then starting a horizontal oil cylinder 7 in the width-adjustable supporting mechanism to pull the left support 5 and the right support 6 to move oppositely to the two sides of the supporting plate 2 to be respectively matched with the notches on the inner side walls of the upper ends of the left support 5 and the right support 6, so as to ensure that the supporting plate 2 is stably supported by the left support 5 and the right support 6;

2) the crown block hoists the V-shaped machine body 4 with the top surface facing upwards and places the V-shaped machine body 4 on the supporting plate 2, the V-shaped machine body 4 is aligned and leveled to a processing state, a hand wheel bolt 11 in a positioning and clamping mechanism on the left side and the right side of the V-shaped machine body 4 is adjusted, a clamping block 12 connected with the hand wheel bolt 11 clamps the V-shaped machine body 4, and after the V-shaped machine body 4 is clamped and fixed by the positioning and clamping mechanism, the condition that the top plane of the V-shaped machine body 4 can be processed is achieved;

3) after finishing the processing elements of the horizontal station of the V-shaped machine body 4, as shown in fig. 4, starting a horizontal oil cylinder 7 to push a left support 5 and a right support 6 outwards to move outwards, starting a turnover oil cylinder 13 on the left side in a turnover mechanism to extend a piston rod of the turnover oil cylinder 13 on the right side in the turnover mechanism, retracting the piston rod of the turnover oil cylinder 13 on the right side in the turnover mechanism, driving a supporting plate 2 to turn over until the bottom surface of the supporting plate 2 contacts with an inclined surface I16 on the right side of a base 3, then starting the horizontal oil cylinder 7 on the opposite side of the inclined surface I16 on the right side of the base 3, pulling the left support 5 to contact the inclined surface of the upper end of the supporting plate 2 with the bottom surface on the left side of the supporting plate 2, and supporting the bottom surface of the supporting plate 2 to enable the supporting plate to have the processing conditions of the cylinder holes and the rows of the V-shaped machine body 4A; in the processing process, the V-shaped machine body 4 which is turned to minus 26 degrees is supported by the inclined plane I16 at the right side of the base 3 and the inclined plane at the upper end of the left support 5, so that the V-shaped machine body can work cooperatively at different stations, and the safety and the reliability of the processing process are ensured;

4) after finishing processing contents of a row of cylinder hole surfaces and cylinder holes of the V-shaped machine body 4A, as shown in figure 5, starting a left horizontal oil cylinder 7 to outwards push out a left support 5, starting a piston rod of a right overturning oil cylinder 13 in the overturning mechanism to extend, and retracting a piston rod of the left overturning oil cylinder 13, so as to drive the supporting plate 2 to overturn until the bottom surface of the supporting plate 2 is in contact with an inclined plane I16 on the left side of the base 3, then starting the horizontal oil cylinder 7 on the opposite side of the inclined plane I16 on the left side of the base 3, and inwards pulling the right support 6 to enable the inclined plane of the upper end of the right support to be in contact with the bottom surface on the right side of the supporting plate 2, so as to support the bottom surface of the supporting plate 2, so that the bottom surface of the supporting plate 2 has processing conditions of the row of the cylinder hole surfaces and the cylinder holes of the V-shaped machine body 4B; in the processing process, the V-shaped machine body 4 which is turned over by 26 degrees is supported by the inclined plane I16 at the left side of the base 3 and the inclined plane at the upper end of the right support 6, so that the V-shaped machine body can cooperatively work at different stations, and the safety and the reliability of the processing process are ensured;

5) after the processing of the above elements of the V-shaped machine body 4 is completed, the piston rod of the horizontal oil cylinder 7 extends and then pushes the corresponding left support 5 and right support 6 outwards, the horizontal position of the supporting plate 2 to the V-shaped machine body 4 is readjusted by the overturning oil cylinder 13, the supporting plate 2 is lifted and supported stably by the corresponding left support 5 and right support 6 pulled by the horizontal oil cylinder 7, the hand wheel bolts 11 on the left side and the right side of the V-shaped machine body 4 are rotated, the clamping blocks 12 loosen the V-shaped machine body 4, the processed V-shaped machine body 4 is dismounted, and the processing of the V-shaped machine body 4 is completed.

The processing method can be seen that the standard is unified and the working procedures are centralized to a greater extent, and the process stability is good; meanwhile, the processing capacity of equipment can be well exerted, the labor intensity of workers is reduced, and the production efficiency is obviously improved;

compared with the traditional machining mode of the V-shaped machine body 4, the machining mode of the machine body of one-time clamping and multi-surface machining is realized by changing the machine body clamping mode, and the problems that the machining efficiency of the large V-shaped machine body 4 is low and the dimensional precision of key elements is unstable are solved;

according to the technical scheme, efficient three-dimensional combined machining of large-scale complex box parts is achieved through the matched tool, accuracy and stability of the space size of key elements of the V-shaped machine body 4 can be achieved, machining quality of products is improved, and the V-shaped machine body has the advantages of wide application field and good popularization value.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The high-efficiency three-dimensional composite processing device for the V-shaped engine body of the large marine diesel engine is characterized in that: including bottom plate (1), layer board (2) and base (3) that are located layer board (2) bottom, base (3) are fixed in on bottom plate (1) and layer board (2) rotate with base (3) and are connected, and V-arrangement organism (4) are located on layer board (2), be equipped with on layer board (2) and be used for pressing from both sides the location clamping mechanism who presss from both sides tight fixed to V-arrangement organism (4), be equipped with the width adjustable supporting mechanism that upper end and layer board (2) adaptation are connected and are used for supporting layer board (2) and V-arrangement organism (4) on bottom plate (1), be equipped with the tilting mechanism who is connected with layer board (2) on bottom plate (1), and layer board (2) realize the adjustment to the V-arrangement organism (4) machined surface that is fixed in on layer board (2) under tilting mechanism's drive.

2. The efficient three-dimensional composite processing device for the V-shaped engine body of the large marine diesel engine according to claim 1, which is characterized in that: the width-adjustable supporting mechanism comprises a left support (5), a right support (6) and a horizontal oil cylinder (7), the left support (5) and the right support (6) are respectively positioned at the left side and the right side of the supporting plate (2), the lower ends of the left support (5) and the right support (6) are respectively connected with guide rails (8) fixed on two sides of the bottom plate (1) in a matching way, a horizontal oil cylinder (7) is fixed on the bottom plate (1) at the inner end of the guide rail (8), the lower ends of the left support (5) and the right support (6) are respectively fixedly connected with the end parts of piston rods of horizontal oil cylinders (7) on the same side, and the distance between the left support (5) and the right support (6) is adjusted through the two horizontal oil cylinders (7), so that the two sides of the supporting plate (2) are adapted to the notches on the inner side walls of the upper ends of the left support (5) and the right support (6), and the supporting of the left support (5) and the right support (6) on the supporting plate (2) is completed.

3. The efficient three-dimensional composite processing device for the V-shaped engine body of the large marine diesel engine according to claim 2, characterized in that: the shape is the same left branch props (5) and right branch props (6) symmetry and sets up on bottom plate (1), left branch props (5) and right branch props (6) and constitutes by the vertical section at upper and lower both ends and the slope section that will go up and down the vertical section of both ends and connect as an organic whole, be equipped with the boss that is located on the vertical section of upper end and slope section transitional coupling position on left branch props (5) and right branch props (6) inside wall, the boss forms the breach that is used for supporting pallet (2) with the inner wall of the vertical section of left branch props (5) and right branch props (6) upper end, the last plane of the vertical section of left branch props (5) upper end is the inclined plane parallel with V-arrangement organism (4) opposite side upper end inclined plane, the last plane of the vertical section of right branch props (6) upper end is the inclined plane parallel with V-arrangement organism (4) opposite side upper end inclined plane.

4. The efficient three-dimensional composite processing device for the V-shaped engine body of the large marine diesel engine according to claim 1, which is characterized in that: the positioning and clamping mechanism comprises vertical plates (9), fixed blocks (10) and hand wheel bolts (11), the vertical plates (9) positioned on two sides of the V-shaped machine body (4) are fixed on the supporting plate (2), the vertical plates (9) are fixedly connected with the fixed blocks (10) on the inner sides of the vertical plates through bolts, through holes in the vertical plates (9) correspond to and are communicated with mounting holes in the fixed blocks (10), the hand wheel bolts (11) penetrate through holes in the vertical plates (9) to be fixedly connected with clamping blocks (12) in the mounting holes in a threaded manner, and the clamping blocks (12) are stretched out or retracted into the mounting holes through rotation of the hand wheel bolts (11) to clamp or loosen the V-shaped machine body (4).

5. The efficient three-dimensional composite processing device for the V-shaped engine body of the large marine diesel engine according to claim 1, which is characterized in that: the turnover mechanism comprises a plurality of groups of turnover assemblies, the turnover assemblies are two turnover oil cylinders (13) with the lower ends hinged to the bottom plate (1), the end parts of piston rods at the upper ends of the two turnover oil cylinders (13) are hinged to the two sides of the supporting plate (2) respectively, and the inclination or horizontal position of the supporting plate (2) is adjusted by controlling the turnover oil cylinders (13) at the same side.

6. The high-efficiency three-dimensional composite processing device for the V-shaped body of the large-scale marine diesel engine according to claim 1, 2, 3, 4 or 5, wherein: base (3) up end is fixed with bearing frame (14), and bearing frame (14) upper end is located the inslot of dodging on layer board (2) middle part bottom surface, be fixed with pivot (15) of being connected with bearing frame (14) rotation on layer board (2), layer board (2) use pivot (15) axis to overturn clockwise or anticlockwise as the center under tilting mechanism's drive.

7. The efficient three-dimensional composite processing device for the V-shaped engine body of the large marine diesel engine according to claim 6, characterized in that: plane both sides face is inclined plane I (16) parallel with the inclined plane of V-arrangement organism (4) upper end homonymy respectively when layer board (2) are in horizontal position on base (3), it has wear-resisting cushion (17) that lie in the coplanar with inclined plane I (16) to go up to embed on inclined plane I (16), tilting mechanism drive layer board (2) clockwise or anticlockwise overturn to layer board (2) when supporting on base (3) left side inclined plane I (16) or right side inclined plane I (16), realize that V-arrangement organism (4) upper end right side inclined plane or left side inclined plane are in horizontal position's regulation.

8. A method for using the high-efficiency three-dimensional composite processing device for the V-shaped body of the large-scale marine diesel engine according to any one of claims 1 to 7, which is characterized by comprising the following steps:

1) firstly, starting a turnover oil cylinder (13) in the turnover mechanism to adjust the supporting plate (2) to a horizontal position, and then starting a horizontal oil cylinder (7) in the width-adjustable supporting mechanism to pull the left support (5) and the right support (6) to move oppositely to the two sides of the supporting plate (2) to be respectively adapted to the notches on the inner side walls of the upper ends of the left support (5) and the right support (6), so that the supporting plate (2) is ensured to be stably supported by the left support (5) and the right support (6);

2) the crown block hoists and places the V-shaped machine body (4) with the top surface facing upwards on the supporting plate (2), the V-shaped machine body (4) is aligned and leveled to a processing state, hand wheel bolts (11) in positioning and clamping mechanisms on the left side and the right side of the V-shaped machine body (4) are adjusted, clamping blocks (12) connected with the hand wheel bolts (11) clamp the V-shaped machine body (4), and after the V-shaped machine body (4) is clamped and fixed by the positioning and clamping mechanisms, the condition that the top plane of the V-shaped machine body (4) can be processed is achieved;

3) after finishing the horizontal station machining elements of the V-shaped machine body (4), starting a horizontal oil cylinder (7) to push a left support (5) and a right support (6) outwards to move outwards, starting a turnover oil cylinder (13) on the left side in the turnover mechanism to extend a piston rod of the turnover oil cylinder, retracting the piston rod of the turnover oil cylinder (13) on the right side in the turnover mechanism, driving a supporting plate (2) to turn over until the bottom surface of the supporting plate (2) contacts with an inclined surface I (16) on the right side of a base (3), then starting the horizontal oil cylinder (7) on the opposite side of the inclined surface I (16) on the right side of the base (3), pulling the left support (5) to enable the inclined surface of the upper end of the left support to contact with the bottom surface on the left side of the supporting plate (2), and supporting the bottom surface of the supporting plate (2) to enable the supporting plate to have cylinder hole surfaces and cylinder hole machining conditions of the row A of the V-shaped machine body (4);

4) after finishing processing contents of cylinder hole surfaces and cylinder holes of an A row of a V-shaped machine body (4), starting a left horizontal oil cylinder (7) to outwards push out a left support (5), starting a piston rod of a right side overturning oil cylinder (13) in the overturning mechanism to extend, retracting a piston rod of a left side overturning oil cylinder (13), driving a supporting plate (2) to overturn until the bottom surface of the supporting plate (2) is contacted with an inclined plane I (16) on the left side of a base (3), then starting the horizontal oil cylinder (7) on the opposite side of the inclined plane I (16) on the left side of the base (3), inwards pulling a right support (6) to enable the inclined plane at the upper end of the right support to be contacted with the bottom surface on the right side of the supporting plate (2), and supporting the bottom surface of the supporting plate (2) to enable the right support to have processing conditions of cylinder hole surfaces and cylinder holes of a B row of the V-shaped machine body (4);

5) after the machining of the above elements of the V-shaped machine body (4) is completed, the piston rod of the horizontal oil cylinder (7) extends to outwards push the corresponding left support (5) and the right support (6), the overturning oil cylinder (13) readjusts the horizontal position of the supporting plate (2) to the V-shaped machine body (4), the horizontal oil cylinder (7) pulls the corresponding left support (5) and the right support (6) to jack and support the supporting plate (2) stably, the hand wheel bolt (11) on the left side and the right side of the V-shaped machine body (4) is rotated, the clamping block (12) is loosened from the V-shaped machine body (4), the machined V-shaped machine body (4) is dismounted, and the machining of the V-shaped machine body (4) is completed.