Inclined flexible assembly tool for single piece of marine diesel engine base

Abstract

The utility model discloses a marine diesel engine base single-piece inclined flexible assembling tool which comprises an inclined supporting workbench, a positioning block, assembling equal-height blocks and a back adjusting type height adjusting device are arranged on the inclined supporting workbench, the positioning block is arranged on the lower portion of the inclined supporting workbench, the assembling equal-height blocks are arranged on the two sides of the positioning block, and the back adjusting type height adjusting device is arranged on the back adjusting type height adjusting device. The back adjusting type height adjusting device is arranged on the working face of the inclined supporting workbench. Welding, supporting and fixing procedures are omitted, potential safety hazards such as part toppling and finger squeezing during single-piece assembly are effectively eliminated, safe assembly operation is guaranteed, the principle that part inclination generates gravity component force is utilized, the part assembly process is easier, the device can be suitable for single-piece assembly operation of machine bases of various models, and the production efficiency is improved. And the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diesel engine production and assembly, and in particular relates to a single-piece inclined flexible assembly tool for a marine diesel engine seat. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The monolithic frame of a marine diesel engine is large in size and heavy in weight. In the traditional processing method, an assembly tool is needed to assemble the components of the monolithic frame. For example, Chinese invention patent CN114918857A discloses an assembly tool for a monolithic frame of a marine diesel engine, including an assembly table and several groups of positioning plates standing side by side at the upper end of the assembly table, and reinforcing ribs between adjacent positioning plates. The assembly tool adopts an assembly process of first placing the main bearing seat horizontally and welding and fixing it with oblique supports, and then assembling the side plates on both sides. Before horizontal assembly, two temporary lifting ears need to be welded on the bottom surface of the main bearing seat for lifting, resulting in waste of cutting and welding of the lifting ears, and there are problems such as difficulty in adjusting the assembly size, flatness and weld gap, resulting in unqualified dimensions after welding and low weld flaw detection pass rate. Utility Model Content

[0004] The utility model aims to provide a single-piece inclined flexible assembly tool for a marine diesel engine base, which ensures the dimensional accuracy and welding quality of product assembly.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] In the first aspect, an embodiment of the utility model provides a single-piece tilting flexible assembly tool for a marine diesel engine base, comprising a tilting support workbench, on which a positioning block, an assembly height block and a back-adjustment type height adjustment device are provided, the positioning block is arranged at the lower part of the tilting support workbench, the assembly height blocks are arranged on both sides of the positioning block, and the back-adjustment type height adjustment device is arranged on the working surface of the tilting support workbench.

[0007] As a further technical solution, the working surface of the inclined support workbench is L-shaped, the back of the inclined support workbench is supported by two support rods, and the bottom of the inclined support workbench is supported by a triangular support block.

[0008] As a further technical solution, the tilt angle of the tilt support workbench is 70°-80°.

[0009] As a further technical solution, an arched hole is provided on the L-shaped working surface, and the arched hole corresponds to the position of the main bearing seat on the diesel engine base monolithic piece.

[0010] As a further technical solution, two positioning blocks are provided, which are respectively located on both sides of the arched hole to position the main bearing seat.

[0011] As a further technical solution, a plurality of assembly flexible plates are arranged on the L-shaped working surface, and a plurality of assembly flexible holes are arranged on each assembly flexible plate.

[0012] As a further technical solution, a back-adjusting height adjustment device is installed in the assembly flexible hole, and the back-adjusting height adjustment device supports the side plates on both sides of the main bearing seat and adjusts the support height.

[0013] As a further technical solution, the back-adjusting height adjustment device includes a threaded rod and a plate, one end of the threaded rod is welded to the plate, and the other end is installed in the assembly flexible hole through a thread.

[0014] As a further technical solution, the height of the assembly equal height block is the same as the height difference between the main bearing seat and the side plate.

[0015] As a further technical solution, four assembly equal height blocks are provided.

[0016] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0017] The inclined flexible assembly tool provided by the utility model saves the welding support fixing process by tilting the inclined support workbench at 80 degrees and utilizing the method that the tilting center of gravity passes over the center of gravity of the workpiece by 10 degrees, effectively eliminating the safety hazards such as parts tipping over and fingers being squeezed during single-piece assembly, ensuring safe assembly operations, and utilizing the principle of gravity component force generated by the tilting of parts to make the assembly process of parts easier, and can be applied to single-piece assembly operations of various models of machine bases, thereby improving product quality and production efficiency.

[0018] The utility model provides an inclined flexible assembly tool, an assembly flexible hole on the inclined support workbench, a back-adjusting height adjustment device and a flexible assembly equal height block and other structures, which can fix and position the main bearing seat and side panels of the single-piece machine base and can prevent tipping by using their own weight. The flexible hole is used for adjusting the size of the single-piece side panels of different machine models.

[0019] The inclined flexible assembly tool provided by the utility model has a simple structure and is easy to use. Through the back-adjusting height adjustment device, it can be used to adjust the Y-direction height size of the single-piece side panels of the machine base of different models. The flexible assembly contour block is used for the Z-direction height size assembly and positioning of the single-piece side panels of the machine base of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 It is a front structural schematic diagram of the inclined flexible assembly tool of the utility model;

[0022] Figure 2 It is a schematic diagram of the back structure of the inclined flexible assembly tool of the utility model;

[0023] Figure 3 This is a structural diagram of the back-adjusting height adjustment device of the utility model.

[0024] Figure 4 It is a schematic diagram of the overall structure of a single chip of a marine diesel engine base;

[0025] Figure 5 It is a front view of a single piece of a marine diesel engine base;

[0026] Figure 6 It is a schematic diagram of the main bearing seat placed on the inclined flexible assembly tooling;

[0027] Figure 7 It is a schematic diagram of the main bearing seat and two side panels placed on the inclined flexible assembly tooling.

[0028] The schematic diagram is for illustrative purposes only;

[0029] Among them, 1. tilt support workbench; 2. assembly flexible hole; 3. back-adjusting height adjustment device; 301. threaded rod; 302. plate; 4. assembly equal height block; 5. main bearing seat; 6. first side panel; 7. second side panel; 8. lifting hole; 9. positioning block. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1

[0032] In a typical implementation of the present invention, Figure 1 and Figure 2As shown, a single-piece tilting flexible assembly tool for a marine diesel engine base is provided, including a tilting support workbench 1, on which a positioning block 9, an assembly contour block 4 and a back-adjusting height adjustment device 3 are provided. The positioning block 9 is arranged at the lower part of the tilting support workbench 1, the assembly contour block 4 is arranged on both sides of the positioning block 9, and the back-adjusting height adjustment device 3 is arranged on the working surface of the tilting support workbench 1.

[0033] The structure of the single chip of the marine diesel engine base is as follows Figure 4 and Figure 5 As shown, it includes a main bearing seat 5, and a first side plate 6 and a second side plate 7 are respectively arranged on both sides of the main bearing seat 5. In order to realize the assembly between the main bearing seat 5, the first side plate 6 and the second side plate 7, the main bearing seat 5 is positioned by a positioning block 9, and the two side plates are supported by an assembly height-conforming block 4. The inclination angle of the two side plates is adjusted by a back-adjusting height adjustment device 3, so that the first side plate 6 and the second side plate 7 can be assembled with the main bearing seat 5.

[0034] Specifically, the working surface of the tilting support workbench 1 is L-shaped, the back of the tilting support workbench 1 is supported by two support rods, and the bottom of the tilting support workbench is supported by a triangular support block, so that the tilting angle of the tilting support workbench is 70°-80°. Preferably, the tilting angle is 80°. By utilizing the method of tilting the center of gravity 10° above the center of gravity of the workpiece, the welding support fixing process is omitted, thereby ensuring safe assembly operations. The principle of generating gravity component force when parts are tilted is utilized to make the assembly process of parts easier.

[0035] In this embodiment, the inclined supporting workbench 1 is a frame structure formed by welding a plurality of rods, and an arched hole is arranged on the L-shaped working surface, and the arched hole corresponds to the position of the main bearing seat 5 on the single piece of the diesel engine base. Furthermore, two positioning blocks 9 are provided, which are respectively located on both sides of the arched hole, for positioning the main bearing seat 5.

[0036] Furthermore, a plurality of assembly flexible plates are provided on the L-shaped working surface, and a plurality of assembly flexible holes 2 are provided on each assembly flexible plate. A back-adjusting height adjustment device 3 is installed in the assembly flexible hole 2. The back-adjusting height adjustment device 3 supports the side plates on both sides of the main bearing seat and adjusts the support height. The position of the assembly flexible plate and the position of the assembly flexible hole can be adjusted according to the needs of the actual assembly process. At the same time, a crowbar can also be inserted into the assembly flexible hole 2 to position the side plate of the side plate and adjust the assembly gap between the side plate and the main bearing seat.

[0037] In this embodiment, if Figure 3As shown, the back-adjusting height adjustment device 3 includes a threaded rod 301 and a plate 302. One end of the threaded rod 301 is welded to the plate 302, and the other end is installed in the assembly flexible hole 2 through a thread. The height of the first side plate 6 and the second side plate 7 is adjusted by changing the depth of the threaded rod screwed into the assembly flexible hole 2, so that the positions of the two side plates and the main bearing seat meet the assembly requirements.

[0038] Since the main bearing seat 5 and the side panels on both sides are not on the same plane, an assembly contour block 4 is provided to support the side panels to achieve assembly between the main bearing seat and the side panels. The height of the assembly contour block 4 is the same as the height difference between the main bearing seat and the side panels. The height of the assembly contour block can be set as needed during actual use.

[0039] Furthermore, four assembly equal-height blocks 4 are provided, and each side panel is supported by two assembly equal-height blocks.

[0040] The use process of the inclined flexible assembly tool provided in this embodiment is as follows: Figure 6 and Figure 7 As shown:

[0041] (1) Use the lifting hole 8 to install the main bearing seat 5 of the machine base on the workbench, and use the weight of the part itself to make the thrust stop surface of the single piece close to the workbench.

[0042] (2) Use the positioning block to position and assemble the main bearing seat in the X-axis center dimension.

[0043] (3) Lift the single-piece side panel of the machine base onto the flexible assembly workbench.

[0044] (4) According to the different types of machine base pieces, select the corresponding equal height blocks to locate the Z-height dimension of the side panels.

[0045] (5) Use the back-adjustable height adjustment device to adjust the Y-axis height dimension to the required dimension on the drawing.

[0046] (6) Use the assembly flexible hole and the pry bar to adjust the X-axis width dimension so that the assembly clearance reaches the process requirement of 2 to 3 mm.

[0047] (7) The machine base piece and tooling are hoisted to the double-wire welding process, and semi-automatic welding equipment is used for welding to complete the assembly of the machine base piece.

[0048] The assembly tool provided in this embodiment has high dimensional positioning accuracy, scientific and reasonable design, and is simple and convenient to use. The 80-degree tilting scheme effectively eliminates safety hazards such as parts tipping over and fingers being squeezed during single-piece assembly. It can be applied to single-piece assembly operations of various types of machine bases, thereby improving product quality and production efficiency.

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A single-piece tilting flexible assembly tool for a marine diesel engine base, characterized in that: It includes an inclined support workbench, on which a positioning block, an assembly height block and a back-adjusting height adjustment device are arranged. The positioning block is arranged at the lower part of the inclined support workbench, the assembly height blocks are arranged on both sides of the positioning block, and the back-adjusting height adjustment device is arranged on the working surface of the inclined support workbench.

2. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 1, characterized in that: The working surface of the inclined support workbench is L-shaped, the back of the inclined support workbench is supported by two support rods, and the bottom of the inclined support workbench is supported by a triangular support block.

3. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 2, characterized in that: The inclination angle of the inclined support workbench is 70°-80°.

4. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 2, characterized in that: An arched hole is arranged on the L-shaped working surface, and the arched hole corresponds to the position of the main bearing seat on the diesel engine base monolithic piece.

5. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 4, characterized in that: There are two positioning blocks, which are respectively located on both sides of the arched hole to position the main bearing seat.

6. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 2, characterized in that: A plurality of assembly flexible plates are arranged on the L-shaped working surface, and a plurality of assembly flexible holes are arranged on each assembly flexible plate.

7. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 6, characterized in that: A back-adjusting height adjustment device is installed in the assembly flexible hole, and the back-adjusting height adjustment device supports the side plates on both sides of the main bearing seat and adjusts the support height.

8. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 5, characterized in that: The back-adjusting height adjustment device comprises a threaded rod and a plate, one end of the threaded rod is welded to the plate, and the other end is installed in the assembly flexible hole through a thread.

9. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 1, characterized in that: The height of the assembly equal height block is the same as the height difference between the main bearing seat and the side plate.

10. The single-piece tilting flexible assembly tool for a marine diesel engine base as claimed in claim 9, characterized in that: The assembly contour blocks are provided with four.

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