Engine mount fixing tool

Abstract

The present invention discloses a fixing tool for engine feet, comprising a fixing body and a positioning pin; the fixing body comprises an upper plate, a lower plate and a side plate, the upper plate is parallel to the lower plate, the side plate is arranged vertically with the upper plate and the lower plate between one end of the upper plate and the lower plate, the upper plate is provided with a pin hole; the positioning pin is inserted into the pin hole. The fixing tool for engine feet of the present invention can well solve the problem that the engine is not stable when mounted on a pallet due to structural limitations, and the engine is easy to tip over when transported.

Description

Technical Field

[0001] The invention relates to the field of engine production, in particular to a fixing tool for an engine foot. Background Art

[0002] In the engine production line, the engine and the production line pallet are usually connected by fixed machine feet, and the fixed machine feet and the columns on the pallet are usually connected by support blocks and positioning pins. Sometimes due to product structure limitations, the installation position of individual engine connection machine feet is close to the middle of the engine, and the engine is not stable when installed on the pallet, which makes the engine easy to tip over when the pallet is transported.

[0003] In order to prevent the engine on the pallet from tipping over and damaging the engine during transportation, bolts are usually used to connect the engine fixing feet and the pallet column support blocks to ensure the stability of the engine. In order to use bolts to fix the engine feet and the pallet, threaded holes need to be processed on the engine feet and the pallet column support blocks. This not only requires a lot of work, but also may damage the structural strength of the engine feet and the pallet, which is not conducive to production organization and safety control.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a fixing tool for engine feet, which can well solve the problem that due to structural limitations, the engine is not stable when installed on a pallet and the engine is easy to overturn during transportation.

[0006] To achieve the above-mentioned purpose, the present invention provides a fixing tool for an engine foot, including a fixing body and a positioning pin; the fixing body includes an upper plate, a lower plate and a side plate, the upper plate is parallel to the lower plate, the side plate is vertically arranged between one end of the upper plate and the lower plate at the same time as the upper plate and the lower plate, and the upper plate is provided with a pin hole; the positioning pin is inserted in the pin hole.

[0007] In a preferred embodiment, the distance from the center axis of the latch hole to the side plate is no greater than half the length of the lower plate.

[0008] In a preferred embodiment, the length of the lower plate is greater than the length of the upper plate.

[0009] In a preferred embodiment, the positioning pin includes a limiting groove, which is arranged along the axial direction of the positioning pin.

[0010] In a preferred embodiment, the length of the limiting groove is smaller than the length of the positioning pin, and the width and depth of the limiting groove are not greater than the radius of the positioning pin.

[0011] In a preferred embodiment, the positioning pin further includes a pin handle portion, which is arranged at one end of the positioning pin, and the diameter of the pin handle portion is greater than the diameter of the positioning pin.

[0012] In a preferred embodiment, the fixed body also includes a mounting hole, which is arranged on the end surface of the upper plate away from one end of the side plate, the central axis of the mounting hole intersects and is perpendicular to the central axis of the pin hole, and the distance from the central axis of the mounting hole to the lower plane of the upper plate is greater than the distance from the limit groove to the other end of the positioning pin.

[0013] In a preferred embodiment, the mounting hole is a threaded hole.

[0014] In a preferred embodiment, the fixing fixture of the engine mount also includes a limit pin, which is arranged in the mounting hole, and the limit pin includes a threaded portion, a limit cylinder and a cross groove; the threaded portion is used to be threadedly connected to the mounting hole; one end of the limit cylinder is coaxially connected to the threaded portion, and the limit cylinder is used to penetrate into the limit groove to place the positioning pin and remove it from the pin hole; the cross groove is arranged on the end face of the threaded portion away from the limit cylinder.

[0015] In a preferred embodiment, the diameter of the limiting cylinder is smaller than the width of the limiting groove, and the length of the limiting cylinder is greater than the depth of the limiting groove.

[0016] Compared with the prior art, the fixing tooling of the engine mounts of the present invention has the following beneficial effects: by designing an inverted U-shaped fixing body and using positioning pins and limit pins, the problem of the engine being unstable when installed on a pallet and the engine being prone to tipping over during transportation due to structural limitations is effectively solved. Without destroying the structural strength of the engine mounts and the pallet, the production organization and safety control requirements are effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a three-dimensional structure of a fixing tool according to an embodiment of the present invention;

[0018] Figure 2 is a schematic top view of a fixing tool according to an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 A schematic cross-sectional view at A-A of FIG.

[0020] Figure 4 is a front schematic view of a positioning pin according to an embodiment of the present invention;

[0021] Figure 5 yes Figure 4 A schematic cross-sectional view at B-B of FIG.

[0022] Figure 6 is a front schematic view of a limit pin according to an embodiment of the present invention;

[0023] Figure 7 1 is a bottom view schematically showing a limit pin according to an embodiment of the present invention.

[0024] Description of main reference numerals:

[0025] 1-fixed body, 11-pin hole, 12-mounting hole, 13-upper plate, 14-lower plate, 15-side plate, 2-locating pin, 21-limiting groove, 22-pin handle, 3-limiting pin, 31-threaded part, 32-limiting cylinder, 33-cross groove. DETAILED DESCRIPTION

[0026] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0027] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0028] like Figure 1 As shown, a fixing fixture of an engine mount according to a preferred embodiment of the present invention includes a fixing body 1 , a positioning pin 2 and a limiting pin 3 .

[0029] like Figures 2 to 3 As shown, in some embodiments, the fixed body 1 is substantially an inverted U-shaped structure, and the fixed body 1 includes an upper plate 13, a lower plate 14 and a side plate 15, the upper plate 13 is parallel to the lower plate 14, and the length of the lower plate 14 is greater than the length of the upper plate 13. The side plate 15 is vertically arranged between one end of the upper plate 13 and the lower plate 14 at the same time as the upper plate 13 and the lower plate 14. The upper plate 13 is provided with a pin hole 11, and the distance L1 from the central axis of the pin hole 11 to the side plate 15 is not greater than half of the length L2 of the lower plate 14. The mounting hole 12 is arranged on the end surface of the upper plate 13 away from the side plate 15, and the central axis of the mounting hole 12 intersects and is perpendicular to the central axis of the pin hole 11. The mounting hole 12 is generally arranged as a threaded hole.

[0030] like Figures 4 to 5As shown, in some embodiments, the locating pin 2 includes a limiting groove 21 arranged along the axial direction of the locating pin 2. The length of the limiting groove 21 is slightly less than the length L4 of the locating pin 2 itself, and the width B1 and depth H2 of the limiting groove 21 are not greater than the radius (1 / 2D2) of the locating pin 2. The locating pin 2 also includes a pin handle 22 arranged at one end of the locating pin 2, and the diameter of the pin handle 22 is greater than the diameter D2 of the locating pin 2, and also greater than the diameter D1 of the pin hole 11. At the same time, knurling can be provided on the outer circumferential surface of the pin handle 2 to facilitate the operator to insert or remove the locating pin 2 by hand to prevent slipping. The distance L3 from the central axis of the mounting hole 12 to the lower plane of the upper plate 13 is greater than the distance L6 from the limiting groove 21 to the other end of the locating pin 2. This design can ensure that when the locating pin 2 is extracted, the end face of the locating pin 2 does not protrude from the lower plane of the upper plate 13 of the fixing part, ensuring that the fixing tooling is smoothly removed.

[0031] like Figure 6 to Figure 7 As shown, in some embodiments, the limit pin 3 is arranged in the mounting hole 12, and the limit pin 3 includes a threaded portion 31, a limit cylinder 32 and a cross groove 33. The threaded portion 31 is used for threaded connection with the mounting hole 12. One end of the limit cylinder 32 is coaxially connected to the threaded portion 31, and the limit cylinder 32 is used to penetrate into the limit groove 21 to place the positioning pin 2 and disengage from the pin hole 11. The cross groove 33 is arranged on the end surface of the threaded portion 31 away from the limit cylinder 32. The diameter B2 of the limit cylinder 32 is smaller than the width B1 of the limit groove 21, and the length L7 of the limit cylinder 32 is greater than the depth H2 of the limit groove 21, so that the depth of the limit groove 21 can be used as much as possible to ensure that the positioning pin 2 does not fall off. The cross groove 33 is used to disassemble the limit pin 3 by tools.

[0032] In some embodiments, the distance H1 between the upper and lower plates of the fixing body 1 should be slightly larger than the distance between the upper plane of the engine foot and the lower plane of the tray.

[0033] In some embodiments, the method and principle of using the fixing tool of the engine foot of the present invention are as follows: first, the connection hole on the engine foot is set on the column of the pallet. Then the positioning pin 2 of the fixing tool is pulled up (because the positioning pin 2 is limited by the limiting pin 3 and will not fall out of the pin hole 11, and because the distance from the central axis of the mounting hole 12 to the lower plane of the upper plate 13 is greater than the distance from the limiting groove 21 to the other end of the positioning pin 2, when the positioning pin 2 is pulled up, the lower end surface of the positioning pin 2 does not protrude from the lower plane of the upper plate 13 of the fixing part, ensuring the smooth disassembly and assembly of the fixing tool), and then the positioning pin 2 is inserted into the other connection holes on the engine foot, and at the same time, the lower plate 14 of the fixing body 1 of the fixing tool is inserted under the pallet. At this time, because the upper plate 13 of the fixing body 1 of the fixing tool is set on the engine foot through the positioning pin 2, and the lower plate 14 of the fixing body 1 is inserted under the pallet, the engine foot and the pallet are connected together through the fixing tool, and the engine will not have the problem of overturning and falling. Since the opening position of the pin hole 11 is specially designed, the distance from the side plate 15 of the fixed body 1 does not exceed half the length of the lower plate 14. Therefore, after the fixing tool is set on the engine foot through the positioning pin 2, the center of the fixing tool is always biased towards one end of the side plate 15, and the length of the lower plate 14 is longer than the upper plate 13, so that the lower plate 14 can always be inserted in the position below the tray. At the same time, the distance between the pin hole 11 and the end of the upper plate 13 should not be too large. This design can firstly avoid the installation hole 12 and the limit pin 3 being too long, and secondly avoid the fixing tool being difficult to install when the installation space is small.

[0034] In summary, the fixing tooling of the engine mount of the present invention has the following advantages: by designing a fixing body in the shape of an inverted U and using positioning pins and limit pins, the problem of the engine being unstable when installed on a pallet and the engine being prone to tipping over during transportation due to structural limitations is effectively solved, and the production organization and safety control requirements are effectively guaranteed without destroying the structural strength of the engine mount and the pallet.

[0035] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A fixing tool for an engine mount, characterized in that: include: A fixed body, comprising an upper plate, a lower plate and a side plate, wherein the upper plate is parallel to the lower plate, the side plate is vertically arranged between one end of the upper plate and the lower plate, and the upper plate is provided with a latch hole; A positioning pin, which is inserted into the pin hole; wherein the distance from the central axis of the latch hole to the side plate is no greater than half the length of the lower plate; wherein the length of the lower plate is greater than the length of the upper plate; The positioning pin includes a limiting groove, which is arranged along the axial direction of the positioning pin; The length of the limiting groove is smaller than the length of the positioning pin, and the width and depth of the limiting groove are not greater than the radius of the positioning pin; The positioning pin further comprises a pin handle portion, which is arranged at one end of the positioning pin, and the diameter of the pin handle portion is greater than the diameter of the positioning pin; The fixing body further comprises a mounting hole, which is arranged on an end surface of the upper plate away from one end of the side plate, the central axis of the mounting hole intersects and is perpendicular to the central axis of the pin hole, and the distance from the central axis of the mounting hole to the lower plane of the upper plate is greater than the distance from the limiting groove to the other end of the positioning pin; as well as A limiting pin, which is arranged in the mounting hole; The method for using the fixed tooling includes: First, the connecting hole on the engine foot is sleeved on the column of the pallet, and then the locating pin of the fixing tool is pulled out. Since the locating pin is limited by the limiting pin, it will not fall out of the pin hole, and since the distance from the center axis of the mounting hole to the lower plane of the upper plate is greater than the distance from the limiting groove to the other end of the locating pin, when the locating pin is pulled out, the lower end surface of the locating pin does not protrude from the lower plane of the upper plate of the fixing part, ensuring the smooth disassembly and assembly of the fixing tool, and then insert the locating pin into the other connecting holes on the engine foot, and at the same time, the lower plate of the fixing body of the fixing tool is inserted under the pallet. At this time, since the upper plate of the fixing body of the fixing tool is set on the engine foot through the locating pin, and the lower plate of the fixing body is inserted under the pallet, the engine foot and the pallet are connected together through the fixing tool.

2. The fixing tool for the engine mount according to claim 1, characterized in that: The mounting hole is a threaded hole.

3. The fixing tool for the engine mount according to claim 2, characterized in that: The limit pin comprises: A threaded portion, which is used for threaded connection with the mounting hole; a limiting cylinder, one end of which is coaxially connected to the threaded portion, the limiting cylinder being used to penetrate into the limiting groove to limit the positioning pin from coming out of the pin hole; and A cross groove is arranged on the end surface of the threaded portion away from the limiting cylinder.

4. The fixing device for the engine mount according to claim 3, characterized in that: The diameter of the limiting cylinder is smaller than the width of the limiting groove, and the length of the limiting cylinder is greater than the depth of the limiting groove.

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