Clamping tool for tail cabin shell

Abstract

The utility model discloses a clamping tool for a tail cabin shell, which comprises a fixing plate, a base and a pressing plate, the base is arranged on the fixing plate, and the tail cabin shell is arranged between the base and the pressing plate; the base comprises a fixing part and a limiting part, the limiting part is arranged on the upper surface of the fixing part in a protruding mode, the diameter of the limiting part is smaller than that of the fixing part, and the limiting part is used for being inserted into the bottom of a stern compartment shell to limit the stern compartment shell; the pressing plate abuts against the top of the stern room shell, a plurality of bolts are arranged on the pressing plate and penetrate through the pressing plate to be connected with the base, and the stern room shell is fixed to the base through the pressing plate. The limiting part is arranged above the fixing part of the base and can be inserted into the bottom of the tail cabin shell, then the tail cabin shell is pressed and fixed through the pressing plate, meanwhile, the positioning face is arranged on the pressing plate and matched with the mounting face of the tail cabin shell, and therefore the tail cabin shell is kept stable and cannot rotate between the pressing plate and the base. And therefore, the machining precision of the stern compartment shell is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of aviation parts processing, and in particular relates to a clamping tool for a tail cabin shell. Background Art

[0002] The tail cabin shell is usually used in aircraft or mobile vehicles. The tail cabin shell usually adopts an arc or cylindrical structure with high tension to resist the pressure outside the shell and maintain the stability inside the cabin. Therefore, it is necessary to ensure the processing accuracy when processing the tail cabin shell, and it is necessary to perform coaxiality and horizontal inspection on it. The existing clamping tooling has poor fixing effect on the tail cabin shell. The precision of the processed tail cabin shell is poor, the defective rate is high, and it cannot be directly tested for horizontality or coaxiality, resulting in low production efficiency. Utility Model Content

[0003] The utility model aims to provide a clamping tool for a tail cabin shell, which can fix the tail cabin shell on a fixing plate through the cooperation of a pressing plate and a base, thereby ensuring its processing accuracy.

[0004] The utility model is realized by the following technical solutions:

[0005] A clamping tool for a tail compartment shell, comprising a fixing plate, a base and a pressing plate, wherein the base is arranged on the fixing plate, and the tail compartment shell is arranged between the base and the pressing plate; the base comprises a fixing portion and a limiting portion, wherein the limiting portion is protrudingly arranged on the upper surface of the fixing portion, the diameter of the limiting portion is smaller than the diameter of the fixing portion, and the limiting portion is used to be inserted into the bottom of the tail compartment shell to limit the tail compartment shell; the pressing plate abuts against the top of the tail compartment shell, and a plurality of bolts are arranged on the pressing plate, wherein the bolts pass through the pressing plate and are connected to the base, and the pressing plate fixes the tail compartment shell on the base.

[0006] Furthermore, the pressure plate includes an abutment portion and an insertion portion, the insertion portion is arranged below the abutment portion, the insertion portion cooperates with the top of the tail compartment shell, the diameter of the abutment portion is larger than the diameter of the insertion portion, and the bolt is arranged on the abutment portion and located on the inner side of the insertion portion.

[0007] Furthermore, a positioning surface is provided on the side of the insertion portion of the pressure plate, and a mounting surface is provided on the inner side of the top of the tail compartment shell body, and the positioning surface cooperates with the mounting surface to position the tail compartment shell body.

[0008] Furthermore, a reference surface for horizontal testing is arranged above the abutting portion of the pressing plate, and the reference surface is protrudingly arranged on the abutting portion.

[0009] Furthermore, a first detection hole is arranged on the reference surface of the pressing plate, a second detection hole is arranged on the base, and the first detection hole and the second detection hole are arranged coaxially.

[0010] Furthermore, the fixing plate is provided with a plurality of mounting grooves, and at least two protrusions are provided under the base, and the protrusions cooperate with the mounting grooves to keep the base stable on the fixing plate.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] 1) In the present invention, a limiting portion is arranged above the fixing portion of the base, and the limiting portion can be inserted into the bottom of the tail compartment shell, and then the tail compartment shell is pressed and fixed by a pressing plate, and a positioning surface is arranged on the pressing plate, and the positioning surface cooperates with the mounting surface of the tail compartment shell, so that the tail compartment shell is kept stable between the pressing plate and the base and cannot rotate, thereby ensuring the processing accuracy of the tail compartment shell.

[0013] 2) In the utility model, a reference plane is arranged above the pressure plate, and the reference plane can measure the horizontality of the tail cabin shell. At the same time, a first detection hole is arranged at the geometric center position of the reference plane, and a second detection hole is arranged at the geometric center position of the base. The first detection hole and the second detection hole are arranged coaxially. The tail cabin shell is placed between the base and the pressure plate, and the coaxiality of the top and bottom of the tail cabin shell can be measured. The measuring method is simple and can improve the processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the assembly structure of the clamping tooling of the tail cabin shell of the utility model.

[0016] Figure 2 It is a structural schematic diagram of a base in a clamping tool for a tail compartment shell of the utility model.

[0017] Figure 3 It is a structural schematic diagram of a pressure plate in a clamping tool for a tail compartment shell of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the tail compartment shell of the utility model.

[0019] Among them: 1-fixing plate, 11-installing groove, 2-base, 21-fixing part, 22-limiting part, 221-second detection hole, 3-pressure plate, 31-abutment part, 311-reference surface, 312-first detection hole, 32-insertion part, 321-positioning surface, 4-bolt, 5-tail cabin shell, 51-installing surface. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0021] Embodiment 1:

[0022] The main structure of this embodiment is a clamping tool for the tail cabin shell, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a fixing plate 1, a base 2 and a pressing plate 3, the base 2 is arranged on the fixing plate 1, and the tail compartment shell 5 is arranged between the base 2 and the pressing plate 3; the base 2 includes a fixing portion 21 and a limiting portion 22, the limiting portion 22 is protrudingly arranged on the upper surface of the fixing portion 21, the diameter of the limiting portion 22 is smaller than the diameter of the fixing portion 21, and the limiting portion 22 is used to insert into the bottom of the tail compartment shell 5 to limit the tail compartment shell 5; the pressing plate 3 abuts against the top of the tail compartment shell 5, and a plurality of bolts 4 are arranged on the pressing plate 3, and the bolts 4 pass through the pressing plate 3 to be connected with the base 2, and the pressing plate 3 fixes the tail compartment shell 5 on the base 2; a plurality of mounting grooves 11 are arranged on the fixing plate 1, and at least two protrusions are arranged under the base 2, and the protrusions cooperate with the mounting grooves 11 to keep the base 2 stable on the fixing plate 1.

[0023] The fixing plate 1 is arranged below the base 2, and the fixing plate 1 is connected to the external processing table. The base 2 is arranged on the fixing plate 1. A plurality of mounting grooves 11 are arranged on the fixing plate 1. A plurality of protrusions are arranged below the base 2. The protrusions are embedded in the mounting grooves 11 to keep the base 2 stable on the fixing plate 1. The base 2 includes a fixing portion 21 and a limiting portion 22. The diameter of the fixing portion 21 is larger than the diameter of the limiting portion 22. The limiting portion 22 is protruding on the surface of the fixing portion 21. The protrusions are arranged on the lower surface of the fixing portion 21. The fixing portion 21 is connected to the fixing plate 1. The limiting portion 22 can be inserted into the bottom of the tail compartment shell 5 to limit the tail compartment shell 5. The pressing plate 3 is arranged on the top of the tail compartment shell 5 and abuts against the tail compartment shell 5. A plurality of bolts 4 are arranged on the pressing plate 3. After the bolts 4 pass through the pressing plate 3, they are threadedly connected with the base 2 to press and fix the tail compartment shell 5.

[0024] Embodiment 2:

[0025] Based on the above embodiment, this embodiment further defines the pressing plate 3, such as Figure 3As shown, the pressure plate 3 includes an abutment portion 31 and an insertion portion 32, the insertion portion 32 is arranged below the abutment portion 31, the insertion portion 32 cooperates with the top of the tail compartment shell 5, the diameter of the abutment portion 31 is larger than the diameter of the insertion portion 32, the bolt 4 is arranged on the abutment portion 31 and is located on the inner side of the insertion portion 32; a positioning surface 321 is arranged on the side of the insertion portion 32 of the pressure plate 3, and a mounting surface 51 is arranged on the inner side of the top of the tail compartment shell 5, and the positioning surface 321 cooperates with the mounting surface 51 to position the tail compartment shell 5; a reference surface 311 for horizontal testing is arranged above the abutment portion 31 of the pressure plate 3, and the reference surface 311 is protrudingly arranged on the abutment portion 31; a first detection hole 312 is arranged on the reference surface 311 of the pressure plate 3, and a second detection hole 221 is arranged on the base 2, and the first detection hole 312 and the second detection hole 221 are coaxially arranged.

[0026] The pressing plate 3 includes an abutting portion 31 and an inserting portion 32. The abutting portion 31 is arranged above the inserting portion 32. The inserting portion 32 can be inserted into the top of the tail compartment shell 5. The diameter of the abutting portion 31 is larger than the diameter of the top of the tail compartment shell 5. The abutting portion 31 abuts against the top of the tail compartment shell 5. The top of the tail compartment shell 5 is provided with a mounting surface 51. The mounting surface 51 is a plane structure. At the same time, a positioning surface 321 matching the mounting surface 51 is provided on the inserting portion 32. After the inserting portion 32 of the pressing plate 3 is inserted into the tail compartment shell 5, its positioning surface 321 abuts against the mounting surface 51 of the tail compartment shell 5, so as to limit the tail compartment shell 5 and prevent it from rotating. A reference surface 311 is provided on the upper surface of the abutting portion 31. The reference surface 311 is used to measure the tooling or the tail compartment shell 5. Whether the parts are in a horizontal state, the reference surface 311 is protrudingly arranged on the abutment portion 31 of the pressure plate 3 and is located at the geometric center position of the abutment portion 31 of the pressure plate 3. By placing a level on the reference surface 311, it is possible to measure whether the pressure plate 3 or the base 2 is in a horizontal state; a first detection hole 312 is arranged at the center point of the reference surface 311, and a second detection hole 221 is arranged on the base 2. The first detection hole 312 and the second detection hole 221 are on the same axis. The first detection hole 312 and the second detection hole 221 cooperate to detect whether the pressure plate 3 and the base 2 are coaxially arranged. The coaxiality detection can be performed by a coaxial measuring instrument or a laser measuring instrument to ensure that the tail cabin shell 5 is accurately positioned between the pressure plate 3 and the base 2. The other parts of this embodiment are the same as the above embodiment and will not be repeated here.

[0027] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model 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, and therefore cannot be understood as a limitation on the present utility model.

[0028] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A clamping tool for a tail cabin shell, characterized in that: It includes a fixing plate, a base and a pressing plate, the base is arranged on the fixing plate, and the tail compartment shell is arranged between the base and the pressing plate; the base includes a fixing part and a limiting part, the limiting part is protrudingly arranged on the upper surface of the fixing part, the diameter of the limiting part is smaller than the diameter of the fixing part, and the limiting part is used to insert into the bottom of the tail compartment shell to limit the tail compartment shell; the pressing plate abuts against the top of the tail compartment shell, and a plurality of bolts are arranged on the pressing plate, the bolts pass through the pressing plate and are connected to the base, and the pressing plate fixes the tail compartment shell on the base.

2. The clamping tool for the tail compartment shell according to claim 1, characterized in that: The pressure plate includes an abutment portion and an insertion portion, wherein the insertion portion is arranged below the abutment portion, the insertion portion cooperates with the top of the tail compartment shell, the diameter of the abutment portion is larger than the diameter of the insertion portion, and the bolt is arranged on the abutment portion and located on the inner side of the insertion portion.

3. The clamping tool for the tail compartment shell as claimed in claim 2, characterized in that: A positioning surface is arranged on the side of the insertion portion of the pressure plate, and a mounting surface is arranged on the inner side of the top of the tail compartment shell body. The positioning surface cooperates with the mounting surface to position the tail compartment shell body.

4. The clamping tool for the tail compartment shell as claimed in claim 2, characterized in that: A reference surface for horizontal testing is arranged above the abutting portion of the pressing plate, and the reference surface is protrudingly arranged on the abutting portion.

5. The clamping tool for the tail compartment shell as claimed in claim 2, characterized in that: A first detection hole is arranged on the reference surface of the pressing plate, a second detection hole is arranged on the base, and the first detection hole and the second detection hole are arranged coaxially.

6. The clamping tool for the tail compartment shell according to claim 1, characterized in that: The fixing plate is provided with a plurality of mounting grooves, and at least two protrusions are provided under the base. The protrusions cooperate with the mounting grooves to keep the base stable on the fixing plate.

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