Shockproof tool for machining weak part of diesel engine rack

Abstract

The utility model discloses an anti-vibration tool for machining a weak part of a diesel engine rack, which comprises a lower base, a main support, a side support rod, an upper plugging plate, a lower plugging plate, a top support fixing block bottom plate, a top support left side plate and a top support right side plate, wherein the upper plugging plate and the lower plugging plate are respectively positioned at the top end and the bottom end of the main support; and the back shore fixing block bottom plate, the back shore left side plate and the back shore right side plate are assembled and welded into an integral structure. The tool and the protruding weak part of the bottom face are in an attached side extrusion mode, disassembly and assembly are facilitated through screw fastening, the other end of the tool is in a plane-to-plane contact mode, and the shock strength of the tool can be improved through bolt fastening. The supporting structure of the tool can effectively control vibration generated by cutting of a cutter to a workpiece, can also reduce deformation of an installation support, achieves an effective shockproof effect, improves the quality of a machined surface, and meets the requirements for roughness and planeness. Meanwhile, machining efficiency is improved, machining time is saved, and cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to a shockproof tooling used for processing weak parts of a diesel engine frame. Background Art

[0002] The raw material of the diesel engine mainframe frame is a structural part welded from steel plates. The structure is as described in the prior patent "A method for pre-welding assembly of a marine diesel engine frame" (application number: CN201711486790.9), where the bottom plate, top plate, and side plates are assembled by welding. Among them, the frame bottom plane processing drawing requires a flatness of 0.1mm and a surface roughness of Ra=3.2. The frame bottom plate is close to the free end where the guide rail beam is installed. Due to the weak structure, the tool will vibrate during processing, so a shockproof technical solution needs to be adopted.

[0003] The anti-vibration schemes can be roughly divided into three categories: the first category is welded anti-vibration, which is to weld supports at weak locations and remove them after processing. This scheme can achieve an anti-vibration effect, but the disadvantage is that after the welded supports are removed, deformation will occur, resulting in excessive flatness. The second category is to install detachable tooling, which is usually supported by solid plates with the help of fulcrum points. Removing it after use can reduce the impact on the flatness of the bottom surface, but the anti-vibration effect is poor and it is not fixed. It is difficult to meet the roughness requirements of the rack processing drawings. The third category is screw support. Due to point support, the pressure is greatly affected by the support force, which is prone to support deformation. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a shockproof tooling for machining the weak parts of the diesel engine frame, aiming to overcome the machining difficulties caused by the weak parts of the guide plate beam installation on the bottom surface of the frame and the poor structural rigidity that produces vibration. The technical solution of the utility model is:

[0005] A seismic-proof tooling for processing weak parts of a diesel engine frame comprises a lower base, a main support, and a top support integral structure, wherein two ends of the main support are respectively connected to the lower base and the top support integral structure; the top support integral structure is welded together by a top support fixing block bottom plate, a top support left plate, and a top support right plate; the main support is a cylindrical structure with a cavity filled with steel shots; an upper blocking plate and a lower blocking plate for blocking the steel shots are respectively arranged at both ends of the main support.

[0006] In an embodiment of the utility model, two side support rods are further included, which are respectively located on both sides of the main support. Each side support rod is respectively connected to the main support and the lower base to ensure the stability of the structure.

[0007] In an embodiment of the present utility model, the lower base is an arc-shaped structure with screw holes.

[0008] Furthermore, the lower base is also provided with an arc-shaped hollow groove.

[0009] In the embodiment of the present utility model, the left top support plate and the right top support plate are trapezoidal structures with cut corners.

[0010] In the embodiment of the present utility model, the main support and the fixed bottom plate of the top support are embedded and welded externally; the fixed bottom plate of the top support block is provided with waist-shaped holes, and the main support is embedded in the waist-shaped holes of the fixed bottom plate of the top support without protruding.

[0011] In the embodiment of the present utility model, copper sheets are respectively arranged on the inner sides of the left top support plate and the right top support plate, and the screws pass through the left top support plate and the right top support plate but do not penetrate the copper sheets, playing a role in protecting the frame rib plates.

[0012] This tooling can effectively control the vibration generated by the tool cutting on the workpiece, and can also reduce the installation support deformation, achieving an effective anti-vibration effect, improving the machining surface quality, and ensuring the requirements of roughness and flatness. At the same time, it improves the machining efficiency, saves machining time and reduces costs.

[0013] An anti-vibration tooling for machining the weak parts of a diesel engine frame, which adopts a fitting side extrusion method with the weak parts protruding from the bottom surface, and the screws are fastened for easy disassembly and assembly.

[0014] The other end of the tooling adopts a plane-to-plane contact method, and the bolts can be bolted to increase the seismic resistance of the tooling.

[0015] The main body of the tooling adopts a tubular support body, and steel shots are filled inside, which can effectively absorb and decompose the vibration generated during machining.

[0016] The designed support angle and structure of the tooling can improve the seismic resistance performance, and the detachable design at both ends reduces the influence on the flatness of the bottom surface.

[0017] Copper sheets are designed for protection at the contact positions of both ends of the tooling with the workpiece, reducing the damage to the paint appearance.

[0018] In the embodiment of the present utility model, the fixed bottom plate of the top support block and the main support are connected in a hinged form, and the main support is a telescopic rod, so as to adapt to the top support requirements of different sizes and angles.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] Compared with the prior art, the weak part protruding from the bottom surface of the present invention adopts a fitting side extrusion method, and the other end adopts a plane-to-plane contact method, which maximally increases the contact area and plays a role in supporting and preventing vibration. The main body of the tooling is a tubular support body, and steel shots are filled inside, which can effectively absorb and decompose the vibration generated during processing. The support angle and structure of the tooling design can improve the seismic performance, and the detachable design at both ends reduces the influence on the flatness of the bottom surface. This structure has strong stability and high safety, improves the anti-vibration effect of processing, effectively improves the processing roughness and flatness, and has greatly improved in terms of operability and paint appearance. Brief Description of the Drawings

[0021] The attached drawings forming a part of this utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0022] Figure 1 General layout drawing of the anti-vibration tooling provided for Embodiment 1;

[0023] Figure 2 Front projection view of the anti-vibration tooling provided for Embodiment 1;

[0024] Figure 3 Bottom view of the main support in the anti-vibration tooling provided for Embodiment 1;

[0025] Figure 4 Provided for Embodiment 1 Figure 3 View A-A in;

[0026] Figure 5 Schematic diagram of the overall structure of the top support provided for Embodiment 1;

[0027] Figure 6 Transverse sectional view of the overall structure of the top support provided for Embodiment 1 from a top-down perspective;

[0028] Figure 7 Structure diagram of the usage state provided for Embodiment 1;

[0029] Figure 8 Schematic diagram of the hinge structure provided for Embodiment 2.

[0030] The description of the reference numerals is as follows:

[0031] 1. Lower base; 2. Main support; 3. Side support rod; 4. Bottom plate of the top support fixing block; 5. Left side plate of the top support; 6. Right side plate of the top support; 7. Copper sheet; 8. M16 screw; 9. Upper sealing plate; 10. Lower sealing plate; 11. Steel shots; 12. Guide rail beam mounting plate; 13. Rib plate; 14 - Machine frame bottom plate; 15 - Machine frame body; 16 - Door panel. Detailed Description of the Preferred Embodiment

[0032] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0033] 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 utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] In conjunction with the accompanying drawings, the technical solutions of the present invention will be further specifically described.

[0035] Embodiment 1

[0036] As shown in Figure 1 and Figure 2 , it includes a lower base 1, a main support 2, side support rods 3, upper sealing plates 9 and lower sealing plates 10 respectively located at the top and bottom of the main support 2, a top support fixed block bottom plate 4, a top support left side plate 5, and a top support right side plate 6. Among them, the top support fixed block bottom plate 4, the top support left side plate 5, and the top support right side plate 6 are welded into a top support integral structure.

[0037] As shown in Figure 3 and Figure 4 , the main support 2 is a cylindrical structure with a cavity, and steel shots 10 are filled in the cavity. The upper sealing plate 9 and the lower sealing plate 10 seal the steel shots 10 in the cavity of the main support 2.

[0038] There are two side support rods 3, which are respectively located on both sides of the main support 2 and connect the main support 2 and the lower base 1 to ensure the stability of the structure.

[0039] The lower base 1 is an arc-shaped structure with screw holes. The arc can increase the contact area with the door panel and has strong stability; a circular arc-shaped empty groove is also provided, which can reduce the weight and facilitate installation without affecting the force transmission.

[0040] As an implementation method, the main support 2 and the top support fixed bottom plate 4 are embedded and welded externally; as shown in Figure 5 and Figure 6 , the top support fixed block bottom plate 4 is provided with waist-shaped holes, and the main support 2 is embedded in the waist-shaped holes of the top support fixed bottom plate 4 without protruding; due to a certain angle, if the top support fixed block bottom plate 4 is provided with round holes, interference will occur during embedding, so waist-shaped holes are used.

[0041] The upper plugging plate and the lower plugging plate are respectively fixed to both ends of the main support for plugging steel shots and have the same outer diameter as the main support.

[0042] The main support 2 and the lower base 1 are lap-welded.

[0043] The left top support plate 5 and the right top support plate 6 are trapezoidal structures with cut corners. The left top support plate 5 and the right top support plate 6 sandwich the rib plate 13 on the back of the guide rail beam mounting plate 12. At least one of the left top support plate 5 and the right top support plate 6 is provided with a screw hole, and the two are fixed by bolts on the side.

[0044] Such as Figure 2 、 5 、as shown in 7, use the M16 screw 8 to pass through the right top support plate 6 and connect it with the top plate or bottom plate of the frame. Use the copper sheet 7 for protection in the middle. The lower base 1 and the frame door plate 16 are screwed together. Specifically, the copper sheet 7 is padded between the right top support plate and the rib plate on the back of the guide rail beam mounting plate, or the copper sheet is wrapped inside the right top support plate 6. When the screw is fixed on the side, the end of the screw will press on the copper sheet, which can protect the paint surface of the rib plate on the back of the guide rail beam from being scratched.

[0045] An anti-vibration tooling for machining the weak parts of a diesel engine frame. This structure starts from the structure of the weak parts of the frame. By designing to adopt a fitting side extrusion method with the weak part protruding from the bottom surface (the frame bottom plate 14), and the other end adopts a flat surface to flat surface (the frame body 15) contact method, the contact area is increased to the greatest extent. The main body of the tooling is a tubular support body, and steel shots are filled inside, which can effectively absorb and decompose the vibration generated during processing. The support tooling forms a triangle with the frame bottom plate ( / frame top plate) and the frame side plate, and the support forms a certain angle with the frame bottom plate ( / frame top plate), for example, the angle is 70 degrees. The designed support angle and structure of the tooling can improve the anti-vibration performance, avoid the occurrence of tool breakage, and are beneficial to ensuring the flatness during the processing; this structure firmly supports the weak area and is beneficial to achieving the required roughness. It has strong stability and high safety, improves the processing anti-vibration effect, effectively improves the processing roughness and flatness, and at the same time has a great improvement in operability and paint appearance.

[0046] Example 2,

[0047] On the basis of the structure of Example 1, further transformation is carried out. Such as Figure 8 shown, the bottom plate 4 of the top support fixing block and the main support 2 are connected in a hinged form. Further, the main support 2 is a telescopic rod, and can adopt a two-section rod structure connected by threads to adapt to the top support requirements of different sizes and angles.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-vibration tooling for machining weak parts of a diesel engine frame, characterized in that, It includes an underbase, a main support, and a top support integral structure. The two ends of the main support are respectively connected to the underbase and the top support integral structure; the top support integral structure is formed by welding a top support fixed block bottom plate, a top support left side plate, and a top support right side plate; the main support is a cylindrical structure with a cavity, and steel shot is filled in the cavity.

2. The shock-proof tooling according to claim 1, wherein Upper and lower sealing plates for blocking steel shot are respectively arranged at the two ends of the main support.

3. The shock-proof tooling according to claim 1, wherein It also includes two side support rods respectively located on both sides of the main support, and each side support rod is respectively connected to the main support and the underbase.

4. The shock-proof tooling according to claim 1, characterized in that, The underbase is an arc-shaped structure with screw holes.

5. The shockproof tooling according to claim 4, characterized in that, The underbase is also provided with an arc-shaped empty groove.

6. The shock-proof tooling according to claim 1, characterized in that, The top support left side plate and the top support right side plate are trapezoidal structures with cut corners.

7. The shock-proof tooling according to claim 1, characterized in that, The main support and the top support fixed bottom plate are connected in an embedded manner and welded externally; the top support fixed block bottom plate is provided with kidney-shaped holes, and the main support is embedded in the kidney-shaped holes of the top support fixed bottom plate without protruding.

8. The shockproof tooling according to claim 1, characterized in that, Copper sheets are arranged on the inner sides of the top support left side plate or the top support right side plate, and screws pass through the top support left side plate or the top support right side plate but do not penetrate through the copper sheets.

9. The shock-proof tooling according to claim 1, characterized in that The top support fixed block bottom plate and the main support are connected in a hinged form.

10. The shock-proof tooling according to claim 9, wherein, The main support is a telescopic rod.

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