Thickness control device for vulcanized rubber layer of cover and frame

Abstract

The invention discloses a device for controlling the thickness of a vulcanized rubber layer of a mouth cover and a mouth frame, comprising a pull rod, a nut, a sleeve and a mouth cover limiting sleeve, wherein one end of the pull rod is a limiting block and the other end is a cylindrical long rod, an external thread I is provided on the cylindrical long rod, a through hole I is provided in the middle of the sleeve, an internal thread I is provided at one end, and an external thread II is provided at the other end, a through hole II is provided in the middle of the mouth cover limiting sleeve, an external thread III is provided at one end, and a handle is provided at the other end, the mouth cover limiting sleeve is sleeved on the pull rod cylindrical long rod, the sleeve is sleeved on the mouth cover limiting sleeve, the limiting block of the pull rod is fitted with the end face of the mouth cover limiting sleeve, the height of the exposed end of the mouth cover limiting sleeve from the end face of the mouth frame is consistent with the height of the rubber layer, the mouth cover is sleeved on the external thread I of the pull rod and is fixedly connected by a nut, the support plate nut is sleeved on the sleeve, and the end of the support plate nut is flush with the end of the sleeve; the advantage of the invention is that the thickness of the glue coating can be directly and effectively controlled, saving time and cost.

Description

Technical Field

[0001] The invention belongs to the field of aircraft structure assembly, and in particular relates to a device for controlling the thickness of a vulcanized rubber layer of a flap frame. Background Art

[0002] During aircraft assembly, to ensure the aircraft's waterproofness, HM120B or HM109 adhesive is typically applied to the flap frame for sealing. This vulcanization process presents two common problems: 1. Due to the varying thickness of the composite flap, if the flap is bolted in place, the adhesive on the frame will be squeezed out, resulting in a thin layer of adhesive, causing the flap to appear lower than the wall panel. 2. If the flap is not fully bolted (leaving a gap between the bolts and the flap), the adhesive layer may be too thick, causing the flap to appear higher than the wall panel. This indicates that adhesive thickness directly affects the flap's step, leading to trade deficits and surpluses that affect product quality. 3. Due to the fluidity of the vulcanized adhesive on the flap frame, it can enter the threads of the support plate nut during bolt installation, making bolt installation difficult. After disassembly, adhesive particles from within the flap can be squeezed out of the support plate nut, creating excess material.

[0003] For a long time, there has been no effective device to prevent glue from entering the support plate nut thread and control the thickness of the glue layer at the same time. In order to ensure the step difference of the cover, the fault is usually eliminated by grinding the cover glue layer and chamfering the edge of the cover. The above method is time-consuming. Therefore, in order to solve the above problems, a device is invented to control the thickness of the glue layer and prevent glue from entering the thread. It is an urgent problem to be solved by the present invention to achieve control of the step difference of the cover and reduce the generation of excess glue particles. Summary of the Invention

[0004] In view of the above-mentioned prior art, the purpose of the present invention is to overcome the shortcomings of the prior art and adapt to actual needs, thereby providing a device for controlling the thickness of the vulcanized rubber layer of the cover. By adjusting the thickness of the rubber layer, the step difference of the cover can be ensured while preventing the glue liquid from entering the support plate nut after disassembly and assembly to produce excess rubber particles.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a device for controlling the thickness of the vulcanized rubber layer of the mouth cover and mouth frame, including a pull rod, a nut, a sleeve and a mouth cover limiting sleeve. The pull rod, the sleeve and the mouth cover limiting sleeve are all rotating bodies, one end of the pull rod is a limiting block, and the other end is a cylindrical long rod. The end of the cylindrical long rod close to the limiting block is a smooth rod, and the end away from the limiting block is provided with an external thread Ⅰ, a through hole Ⅰ is provided in the middle of the sleeve, one end of the sleeve is provided with an internal thread Ⅰ, and the other end is provided with an external thread Ⅱ, a through hole Ⅱ is provided in the middle of the mouth cover limiting sleeve, one end is provided with an external thread Ⅲ, and the other end is provided with a handle, the mouth cover limiting sleeve passes through the internal thread Ⅰ of the sleeve, the through hole Ⅰ of the sleeve and the middle of the mouth frame in sequence through the external thread Ⅲ end. The cover is fixed on the outer surface of the mouth frame by means of a nut, and the outer surface of the cover is fixed on the outer surface of the mouth frame by means of an inner thread Ⅰ and an outer thread Ⅱ. The outer thread Ⅰ of the sleeve is connected to the outer thread Ⅲ of the cover limiting sleeve by means of an inner thread Ⅰ, and the outer thread Ⅱ of the sleeve is connected to the outer thread Ⅲ of the cover limiting sleeve by means of an outer thread Ⅱ. The end of the support plate nut is flush with the end of the sleeve with the outer thread Ⅱ.

[0006] Furthermore, the width of the limit block on one end of the pull rod is greater than or equal to the outer diameter of the mouth cover limiting sleeve, the outer diameter of the external thread I on the other end of the pull rod is less than or equal to the inner diameter of the through hole II in the middle of the mouth cover limiting sleeve, and the outer diameter of the external thread I on the other end of the pull rod matches the aperture of the initial thread hole of the mouth cover.

[0007] Furthermore, the limit stopper on one end of the pull rod is in the shape of a cuboid, and the total width of the limit stopper is greater than the outer diameter of the cylindrical long rod on the other end of the pull rod.

[0008] Furthermore, the external thread III on one end of the mouth cover limiting sleeve matches the internal thread I on one end of the sleeve, and the outer diameter of the mouth cover limiting sleeve matches the inner diameter of the through hole I in the middle of the sleeve.

[0009] Furthermore, the handle on the other end of the mouth cover limiting sleeve is arranged at both ends of the outer wall of the mouth cover limiting sleeve.

[0010] Furthermore, the external thread II on the other end of the sleeve matches the internal thread of the support plate nut.

[0011] Furthermore, the diameter of the through hole I in the middle of the sleeve is consistent with the inner diameter of the internal thread I of the sleeve.

[0012] Furthermore, the total length of the sleeve is greater than the total length of the support plate nut.

[0013] The beneficial effects of the present invention are as follows: the present invention can directly and effectively control the thickness of the glue coating, ensure that the glue layer meets the on-site requirements, and save the time and cost of repairing the glue layer and the thickness of the cover after vulcanization without tools to limit the thickness of the glue layer, and even the time and cost of scraping the glue and re-vulcanizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a front view of the pull rod of the present invention;

[0016] Figure 3 FIG1 is a schematic diagram of a pull rod of the present invention;

[0017] Figure 4 It is a structural schematic diagram of the nut of the present invention;

[0018] Figure 5 for Figure 4 AA section view;

[0019] Figure 6 It is a structural schematic diagram of the sleeve of the present invention;

[0020] Figure 7 for Figure 6 BB cross-sectional view;

[0021] Figure 8 This is a structural diagram of the mouth cover limiting sleeve of the present invention;

[0022] Figure 9 for Figure 8 CC cross-sectional view;

[0023] Figure 10 It is a working schematic diagram of the present invention.

[0024] Among them: 1 is a pull rod, 2 is a nut, 3 is a sleeve, 4 is a limit sleeve for the mouth cover, 1-1 is an external thread I, 1-2 is a limit block, 2-1 is an internal thread of the nut, 2-2 is a through hole for the nut, 3-1 is an external thread II, 3-2 is a through hole I, 3-3 is an internal thread I, 4-1 is a through hole II, 4-2 is an external thread III, 4-3 is a handle, 5 is a support plate nut, 6 is a mouth frame (partial), 7 is a rubber layer (partial), and 8 is a mouth cover (partial). Implementation Method

[0025] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0026] In the description of this application, it should be noted that the terms "middle", "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting this application.

[0027] In addition, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "provided with," etc., should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0028] It should also be understood that the terms "comprises / comprising," "consisting of," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product, apparatus, process, or method that includes a list of elements includes not only those elements but also, if necessary, other elements not explicitly listed, or elements inherent to such product, apparatus, process, or method. Without further limitation, an element defined by the phrase "comprises / comprising," "consisting of," does not preclude the presence of additional identical elements in the product, apparatus, process, or method that includes the element. Example

[0029] like Figures 1 to 10As shown, the present invention provides a device for controlling the thickness of a vulcanized rubber layer of a mouth cover and mouth frame, comprising a pull rod 1, a nut 2, a sleeve 3 and a mouth cover limiting sleeve 4. The pull rod 1, the sleeve 3 and the mouth cover limiting sleeve 4 are all rotating bodies. One end of the pull rod 1 is a limiting block 1-2, and the other end is a cylindrical long rod. The end of the cylindrical long rod close to the limiting block 1-2 is a smooth rod, and the end away from the limiting block 1-2 is provided with an external thread Ⅰ1-1. A through hole Ⅰ3-2 is provided in the middle of the sleeve 3, one end of the sleeve 3 is provided with an internal thread Ⅰ3-1, and the other end is provided with an external thread Ⅱ3-3. A through hole Ⅱ4-1 is provided in the middle of the mouth cover limiting sleeve 4, one end of which is provided with an external thread Ⅲ4-2, and the other end is provided with a handle 4-3. The mouth cover limiting sleeve 4 passes through the internal thread Ⅰ3-1 of the sleeve 3, the through hole Ⅰ3-2 of the sleeve 3 and the middle of the mouth frame 6 in sequence through the external thread Ⅲ4-2 end and is exposed. Outside the outlet frame 6, the height of the exposed end of the mouth cover limiting sleeve 4 from the end face of the mouth frame 6 is consistent with the height of the rubber layer 7. One end of the pull rod 1 passes through the through hole Ⅱ4-1 in the middle of the mouth cover limiting sleeve 4 through the end with external thread Ⅰ1-1 and exposes the mouth cover limiting sleeve 4, and the other end contacts the end face of the mouth cover limiting sleeve 4 with the handle 4-3 through the limiting block 1-2. The mouth cover 8 passes through the exposed external thread Ⅰ1-1 of the pull rod 1 through the threaded initial hole until it rests on the exposed end face of the mouth cover limiting sleeve 4, and is fastened on the exposed external thread Ⅰ1-1 of the pull rod 1 through the nut 2. One end of the sleeve 3 is connected to the external thread Ⅲ4-2 of the mouth cover limiting sleeve 4 through the internal thread Ⅰ3-1, and the other end is connected to the support plate nut 5 through the external thread Ⅱ3-3, and the end of the support plate nut 5 is flush with the end of the sleeve 3 with the external thread Ⅱ3-3.

[0030] Preferably, the width of the limit block 1-2 on one end of the pull rod 1 is greater than or equal to the outer diameter of the cover limit sleeve 4, the outer diameter of the external thread Ⅰ1-1 on the other end of the pull rod 1 is less than or equal to the inner diameter of the through hole Ⅱ4-1 in the middle of the cover limit sleeve 4, and the outer diameter of the external thread Ⅰ1-1 on the other end of the pull rod 1 matches the aperture of the initial thread hole of the cover 8.

[0031] Preferably, the limit stopper 1 - 2 on one end of the pull rod 1 is in the shape of a cuboid, and the total width of the limit stopper 1 - 2 is greater than the outer diameter of the cylindrical long rod on the other end of the pull rod 1 .

[0032] Preferably, the external thread III4-2 on one end of the cover limiting sleeve 4 matches the internal thread I3-1 on one end of the sleeve 3, and the outer diameter of the cover limiting sleeve 4 matches the inner diameter of the through hole I3-2 in the middle of the sleeve 3.

[0033] Preferably, the handle 4 - 3 on the other end of the mouth cover limiting sleeve 4 is provided at both ends of the outer wall of the mouth cover limiting sleeve 4 .

[0034] Preferably, the external thread II3-3 on the other end of the sleeve 3 matches the internal thread of the support plate nut 5.

[0035] Preferably, the aperture of the through hole I3-2 in the middle of the sleeve 3 is consistent with the inner diameter of the internal thread I3-1 of the sleeve 3.

[0036] Preferably, the total length of the sleeve 3 is greater than the total length of the support plate nut 5 .

[0037] The specific operation process of the present invention is: the sleeve 3 is removed from the support plate nut 5 (such as Figure 10 As shown in the figure, the thread connected with the support plate nut 5 through the internal thread Ⅰ3-1 below is rotated and installed into the support plate nut 5, and the cover limiting sleeve 4 is rotated into the sleeve 3 through the internal thread Ⅰ3-3 and the external thread Ⅲ4-2 from the through hole Ⅰ3-2 below the sleeve 3, and the handle 4-3 is twisted to make the cover limiting sleeve 4 expose the appropriate position of the support plate nut 5, and the glue layer 7 is applied on the mouth frame 6 so that the height is flush with the height of the exposed cover limiting sleeve 4. Insert the pull rod 1 from the through hole Ⅱ4-1 below the cover limiting sleeve 4, so that the limiting block 1-2 fits with the cover limiting sleeve 4, reinstall the cover 8, pass the bolt initial hole on the cover 8 through the pull rod 1, press the cover 8 against the cover limiting sleeve 4 to expose the support plate nut 5, pass the nut 2 through the nut through hole 2-2, connect it with the nut internal thread 2-1 through the external thread Ⅰ1-1, install and tighten the cover 8, and assemble it into a cover frame vulcanized rubber layer thickness control device to control the thickness of the rubber layer 7.

[0038] The working principle of the present invention is: Figure 6Taking the single double-ear support plate nut 5 as an example, the operator cleans the mouth frame 6 before vulcanization, measures the thickness of the mouth cover 8, calculates the thickness of the rubber layer 7 to be coated, holds the sleeve 3 with one hand, rotates it from the bottom of the support plate nut 5 on the mouth frame 6 into the inside of the support plate nut 5, observes the length of the support plate nut 5 rotated into the mouth frame 6 with the eyes, stops rotating when the sleeve 3 is flush with the upper surface of the support plate nut 5, holds the mouth cover limiting sleeve 4 with the hand, rotates the handle 4-3 from the bottom of the sleeve 3 to enter the sleeve 3, observes the height of the mouth cover limiting sleeve 4 extending out of the mouth frame 6 (partially) with the eyes, and stops when it is close to the theoretical position, and uses a ruler to measure the mouth cover limit The height of the positioning sleeve 4 extending out of the mouth frame 6 (partial) is fine-tuned to ensure that it is consistent with the calculated height of the adhesive layer 7 to be applied; apply glue to ensure that the thickness of the adhesive layer 7 is slightly higher than the height of the mouth cover limiting sleeve 4 extending out of the mouth frame 6 (partial), hold the pull rod 1 with one hand and insert it from the bottom of the mouth cover limiting sleeve 4, after insertion, use the other hand to pull the pull rod 1 from the top to tighten the pull rod 1, so that the limit block 1-2 fits with the mouth cover limiting sleeve 4, and hold it still, pick up the mouth cover 8 with the other hand, pass the initial hole of the bolt of the mouth cover 8 (partial) through the pull rod 1, tighten the pull rod 1, and install the nut 2 until the mouth cover 8 is against the protruding part of the mouth cover limiting sleeve 4. After the vulcanization period is over, rotate the nut 2 by hand until the nut 2 leaves the pull rod 1, hold the upper part of the pull rod 1, and pull the cover 8 out of the bolt initial hole. After removing the cover 8, hold the limit block 1-2 by hand, pull out the pull rod 1, rotate the handle 4-3 to remove the cover limit sleeve 4, and rotate the sleeve 3 to extend out of the support plate nut 5 to remove the sleeve 3.

[0039] Count the removed parts and check the quantity to avoid excess. At this time, the thickness of the glue layer 7 is the theoretical requirement. The thread of the support nut 5 is protected by the sleeve 3 and no glue particles will remain. Reinstall the cover 8 to check the step difference.

[0040] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. The device for controlling the thickness of the vulcanized rubber layer of the cover and frame is characterized by: The invention comprises a pull rod, a nut, a sleeve and a cover limiting sleeve. The pull rod, the sleeve and the cover limiting sleeve are all rotating bodies. One end of the pull rod is a limit block and the other end is a cylindrical long rod. The end of the cylindrical long rod close to the limit block is a smooth rod and the end away from the limit block is provided with an external thread Ⅰ. A through hole Ⅰ is provided in the middle of the sleeve. One end of the sleeve is provided with an internal thread Ⅰ and the other end is provided with an external thread Ⅱ. A through hole Ⅱ is provided in the middle of the cover limiting sleeve, one end of which is provided with an external thread Ⅲ and the other end is provided with a handle. The cover limiting sleeve passes through the internal thread Ⅰ of the sleeve, the through hole Ⅰ of the sleeve and the middle of the mouth frame in sequence through the external thread Ⅲ and is exposed outside the mouth frame. The exposed end of the cover limiting sleeve is 1 / 4 of the distance from the sleeve to the mouth frame. The height of the end face of the mouth frame is consistent with the height of the glue layer. One end of the pull rod passes through the through hole Ⅱ in the middle of the mouth cover limiting sleeve through the end with external thread Ⅰ and exposes the mouth cover limiting sleeve. The other end contacts the end face of the mouth cover limiting sleeve with the handle through the limit block. The mouth cover passes through the exposed external thread Ⅰ of the pull rod through the threaded initial hole until it rests against the exposed end face of the mouth cover limiting sleeve, and is fastened and fixed on the exposed external thread Ⅰ of the pull rod through a nut. One end of the sleeve is connected to the external thread Ⅲ of the mouth cover limiting sleeve through the internal thread Ⅰ, and the other end is connected to the support plate nut through the external thread Ⅱ, and the end of the support plate nut is flush with the end of the sleeve with external thread Ⅱ.

2. The device for controlling the thickness of the vulcanized rubber layer of the mouth cover frame according to claim 1, characterized in that: The width of the limit block on one end of the pull rod is greater than or equal to the outer diameter of the mouth cover limiting sleeve, the outer diameter of the external thread I on the other end of the pull rod is less than or equal to the inner diameter of the through hole II in the middle of the mouth cover limiting sleeve, and the outer diameter of the external thread I on the other end of the pull rod matches the diameter of the initial thread hole of the mouth cover.

3. The device for controlling the thickness of the vulcanized rubber layer of the mouth cover frame according to any one of claims 1 or 2, characterized in that: The limit block on one end of the pull rod is in the shape of a cuboid, and the total width of the limit block is greater than the outer diameter of the cylindrical long rod on the other end of the pull rod.

4. The device for controlling the thickness of the vulcanized rubber layer of the mouth cover frame according to claim 1, characterized in that: The external thread III on one end of the cover limiting sleeve matches the internal thread I on one end of the sleeve, and the outer diameter of the cover limiting sleeve matches the inner diameter of the through hole I in the middle of the sleeve.

5. The device for controlling the thickness of the vulcanized rubber layer of the mouth cover frame according to claim 1, characterized in that: The handle on the other end of the mouth cover limiting sleeve is arranged on the two ends of the outer wall of the mouth cover limiting sleeve.

6. The device for controlling the thickness of the vulcanized rubber layer of the mouth cover frame according to claim 1, characterized in that: The external thread II on the other end of the sleeve matches the internal thread of the support plate nut.

7. The device for controlling the thickness of the vulcanized rubber layer of the mouth cover frame according to claim 1, characterized in that: The diameter of the through hole I in the middle of the sleeve is consistent with the inner diameter of the internal thread I of the sleeve.

8. The device for controlling the thickness of the vulcanized rubber layer of the mouth cover frame according to claim 1, characterized in that: The total length of the sleeve is greater than the total length of the support plate nut.

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