Composite material engine shell metal part bonding tool

Abstract

The utility model discloses a composite material engine shell metal part bonding tool in the technical field of tools, which comprises a base, a metal part bonding device, a metal part bonding device and a metal part bonding device, the sliding block seat mounting assembly is mounted on the base, is used for mounting a sliding block seat and comprises a first connecting screw penetrating through the base from the bottom, and the first connecting screw is fixedly connected with the sliding block seat; the wire clamping seat mounting assembly is mounted on the base, is used for mounting a wire clamping seat and comprises a limiting block mounted on the supporting seat, and the wire clamping seat is mounted on the limiting block; and the missile wing seat mounting assembly is mounted on the support, is used for mounting a missile wing seat and comprises a positioning clamping plate fixed on the end face of the support seat, a second connecting screw is arranged on the positioning clamping plate, and the positioning clamping plate is fixedly connected with the missile wing seat through the second connecting screw. The problem that the mounting precision of an existing engine shell metal part is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, and particularly relates to a forming tooling for an engine housing. Background Art

[0002] In the 21st century, the engine housing is the main power output structure of various rockets and missile weapons and is widely used in the aerospace field. The main load-bearing structure of the all-composite material cylinder is composed of a fiber winding layer, front and rear joints, and a skirt. The heat insulation structure is composed of a heat insulation layer, and the outer surface is composed of metal brackets such as fin mounts and wire holders. Among them, since the external metal brackets are related to the external docking interfaces, the positioning accuracy requirements for the metal bracket holes and mating surfaces are relatively high. At present, the housing adopts the method of installing and winding and fixing with a margin, and finally machining and finishing to form the final dimensions of the metal parts. This forming method is prone to flexible deformation of the cylinder during the machining process of the all-composite material cylinder, resulting in out-of-tolerance of the final metal bracket dimensions, especially the shape and position dimensions. Therefore, how to improve the forming accuracy of the external interface metal brackets of the all-composite material housing has always been a technical difficulty in the industry. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides a bonding tooling for metal parts of a composite material engine housing, which solves the problem of low installation accuracy of metal parts of the existing engine housing.

[0004] The purpose of the utility model is realized as follows: A bonding tooling for metal parts of a composite material engine housing includes:

[0005] A base for supporting the engine housing;

[0006] A slider seat installation component installed on the base for installing the slider seat, including a first connecting screw passing through the base from the bottom, and the first connecting screw is fixedly connected to the slider seat;

[0007] A wire holder installation component installed on the base for installing the wire holder, including a limiting block installed on the support seat, and the wire holder is installed on the limiting block;

[0008] A fin mount installation component installed on the support for installing the fin mount, including a positioning card plate fixed on the end face of the support seat, and a second connecting screw is provided on the positioning card plate, and the positioning card plate is fixedly connected to the fin mount through the second connecting screw.

[0009] Further, both ends of the base are provided with support platforms, and the surfaces of the support platforms are machined into arc-shaped surfaces.

[0010] Further, one end of the base is provided with a positioning block, and a positioning pin is provided on the positioning block.

[0011] Further, the base is also provided with a limiting boss for cooperating with the slider seat.

[0012] Further, the support base includes a pair of supports. The two supports are spliced together to form a circular hole that fits the outer surface of the engine housing, and the limiting block is arranged on one side of the tops of the two supports.

[0013] Further, a chute that cooperates with the support is provided on the base. A third connecting screw is provided in the chute, and the bottom of the support is fixed in the chute through the third connecting screw, and the tops of the supports are fixedly connected through a connecting key.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model can accurately position metal parts and cure and form them at room temperature, avoiding deformation of the composite material housing caused by sudden temperature changes, and at the same time avoiding flexible deformation of the composite material housing caused by machining and finishing. During the forming process of the metal parts, the forming accuracy of the metal parts is effectively guaranteed. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0017] Figure 1 It is a usage state diagram of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the present utility model.

[0019] Figure 3 It is a structural schematic diagram of the support base in the present utility model.

[0020] Among them, 100 is the base, 101 is the support table, 102 is the positioning block, 103 is the positioning pin, 104 is the limiting boss, 200 is the slider seat installation assembly, 201 is the first connecting screw, 300 is the wire clamp seat installation assembly, 301 is the support base, 301a is the support, 301b is the third connecting screw, 301c is the connecting key, 302 is the limiting block, 400 is the fin seat installation assembly, 401 is the positioning card plate, 402 is the second connecting screw, 500 is the engine housing, 600 is the slider seat, 700 is the wire clamp seat, and 800 is the fin seat. Specific Embodiments

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1-3 shown, a bonding tooling for metal parts of a composite material engine housing includes:

[0023] A base 100 for supporting the engine housing 500. Support platforms 101 are provided at both ends of the base 100. The surfaces of the support platforms 101 are processed into arc-shaped surfaces, which can be fitted and positioned with the outer circumferential positioning surfaces of the front skirt and the rear joint of the housing. A positioning block 102 is provided at one end of the base 100 (the end of one support platform 101). A ø4mm pin hole is provided in the positioning block 102, and a positioning pin 103 is provided in the pin hole, which can be inserted into the ø4mm positioning pin 103 for positioning in cooperation with the ø4mm pin hole on the end face of the front skirt of the housing. The base 100 is in an overall cross shape and is longer in the length direction for supporting the engine housing 500, and is used for installing the support seat 301 in the width direction.

[0024] A slider seat installation assembly 200 is installed on the base 100 for installing the slider seat 600, including first connecting screws 201 that pass through the base 100 from the bottom. The first connecting screws 201 are fixedly connected to the slider seat 600. There are 4 first connecting screws 201, which are M5 shoulder screws. 4 pin holes are correspondingly provided on the base 100. The first connecting screws 201 pass through the pin holes and are connected and fixed to the slider seat 600. A limiting boss 104 that cooperates with the slider seat 600 is also provided on the base 100.

[0025] The wire socket mounting assembly 300 is mounted on the base 100 for mounting the wire socket 700, and includes a limit block 302 mounted on the support base 301. The wire socket 700 is mounted on the limit block 302. The support base 301 includes a pair of supports 301a. The two supports 301a are spliced together to form a circular hole that fits the outer surface of the engine housing 500. The limit block 302 is provided on one side of the tops of the two supports 301a. The top of the limit block 302 contains 2 pin holes, through which M5 shoulder screws can be inserted to connect and fix the wire socket 700; the side contains 2 groups of pin holes and threaded through holes, which can be connected and fixed to the two supports 301a. There is a chute on the base 100 that cooperates with the support 301a. A third connecting screw 301b is provided in the chute. The bottom of the support 301a is fixed in the chute by the third connecting screw 301b. The top of the support 301a is fixedly connected by a connecting key 301c. The bottom of the support 301a contains 1 pin hole and 1 threaded through hole, through which a positioning pin 103 and a third connecting screw 301b can be inserted to connect and fix it to the base 100; the tops of the two supports 301a contain half of an oblong hole slot, and the tops of the two supports 301a together form a complete oblong slot, into which a thin flat key can be inserted to position the two supports 301a.

[0026] The fin seat mounting assembly 400 is mounted on the support 301a for mounting the fin seat 800, and includes a positioning card plate 401 fixed on the end face of the support base 301. A second connecting screw 402 is provided on the positioning card plate 401. The positioning card plate 401 is fixedly connected to the fin seat 800 by the second connecting screw 402; the positioning card plate 401 is fixed on the two supports 301a. The upper and lower surfaces are parallel positioning surfaces and have a uniform thickness, and can be inserted into the middle slot of the fin seat 800; both surfaces contain 2 positioning pin 103 holes, through which the second connecting screw 402 is inserted to connect and position the fin seat 800.

[0027] The usage process of the present utility model is as follows:

[0028] Step 1) Installation of the slider seat 600; on the non-contact surface between the slider seat 600 and the engine housing 500, a release cloth is pasted for protection. The slider seat 600 is positioned and connected to the corresponding position on the base 100 using the first connecting screw 201, ensuring that the first connecting screw 201 is tightened and the slider seat 600 is closely attached to the slider positioning surface of the base 100 for fixation. A room temperature curing adhesive is evenly applied to the mating surface of the slider seat 600 and the engine housing 500. Then, the front and rear positioning blocks 102 of the base 100 with the slider seat 600 installed are fitted to the outer circular surfaces of the front skirt and the rear joint of the engine housing 500. At the same time, the step of the rear positioning block 102 of the base 100 is closely attached to the rear positioning surface of the rear joint of the engine housing 500. The positioning pin 103 hole at the front end of the base 100 is aligned with the ø4mm pin hole on the front skirt end face and the ø4mm positioning pin 103 is inserted for fixation. In this way, the slider seat 600 is positioned and bonded to the engine housing 500.

[0029] Step 2) Installation of the wire clamp seat 700: On the non-contact surface between the wire clamp seat 700 and the engine housing 500, release cloth is pasted for protection. Use M5 shoulder screws to position and connect the wire clamp seat 700 to the limit block 302, ensure that the shoulder screws are tightened and the wire clamp seat 700 is closely attached to the positioning surface of the limit block 302 for fixation. Uniformly apply room-temperature curing adhesive on the joint surface between the wire clamp seat 700 and the engine housing 500. Respectively connect and fix the two supports 301a to the corresponding positions on the base 100 through Ø6mm positioning pins 103 and the third connecting screws 301b, and combine the two supports 301a into a complete ring. Then, connect and fix the tooling limit block 302 with the installed wire clamp seat 700 to the corresponding positions of the two tooling supports 301a through Ø6mm positioning pins 103 and M5 screws. Finally, insert the connecting key 301c (flat key) at the top of the ring and connect the corresponding positioning pins 103 and screws at the same time to fix the connecting key 301c at the top of the ring to ensure the positioning dimension of the ring. In this way, the wire clamp seat 700 is positioned and bonded to the engine housing 500;

[0030] Step 3) Installation of the fin seat 800: On the non-contact surface between the fin seat 800 and the engine housing 500, release cloth is pasted for protection. Uniformly apply room-temperature curing adhesive on the bonding surface of the fin seat 800. Then, insert the fin seat 800 into the positioning card plate 401 on the two supports 301a, align the pin holes on the fin seat 800 with the pin holes on the positioning card plate 401, insert the second connecting screw 402 and screw in the nut for fixation. In this way, the fin seat 800 is positioned and bonded to the engine housing 500;

[0031] Step 4) Demolding after curing: After the slider seat 600, the wire clamp seat 700, and the fin seat 800 are completely cured, sequentially disassemble and remove the screws connecting the slider seat 600, the wire clamp seat 700, and the fin seat 800 to the tooling. Subsequently, pull out the front skirt positioning pin 103 inserted into the front end of the base 100. Then, remove the connecting key 301c at the top of the support 301a, and disassemble and separate the tooling limit block 302 of the wire clamp seat 700 from the two supports 301a. Sequentially remove the positioning pins 103 and screws connecting the base 100 to the two supports 301a. At this time, the base 100 can be separated and removed from the engine housing 500. During the separation process, pay attention to slowly pulling out the base 100 in a direction perpendicular to the axis of the engine housing 500 and away from the engine housing 500. Finally, the support 301a can be disassembled and pulled out along the course direction of the engine housing 500 to complete the demolding after the metal bracket is formed and cured.

[0032] The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A composite material engine casing metal parts bonding tool, characterized in that: include: A base (100) for supporting an engine housing (500); A slider seat mounting assembly (200) is mounted on the base (100) and is used to mount the slider seat (600), comprising a first connecting screw (201) passing through the base (100) from the bottom, wherein the first connecting screw (201) is fixedly connected to the slider seat (600); A wire clamp seat installation assembly (300) is installed on the base (100) and is used to install the wire clamp seat (700), comprising a limit block (302) installed on the support seat (301), and the wire clamp seat (700) is installed on the limit block (302); The wing seat mounting assembly (400) is mounted on the support (301a) and is used to mount the wing seat (800), and comprises a positioning card plate (401) fixed on the end surface of the support seat (301), wherein the positioning card plate (401) is provided with a second connecting screw (402), and the positioning card plate (401) is fixedly connected to the wing seat (800) via the second connecting screw (402).

2. A composite material engine casing metal parts bonding tool according to claim 1, characterized in that: Support platforms (101) are provided at both ends of the base (100), and the surface of the support platform (101) is processed into an arc-shaped surface.

3. A composite material engine casing metal parts bonding tool according to claim 2, characterized in that: A positioning block (102) is provided at one end of the base (100), and a positioning pin (103) is provided on the positioning block (102).

4. A composite material engine casing metal parts bonding tool according to any one of claims 1-3, characterized in that: The base (100) is also provided with a limiting boss (104) that cooperates with the slider seat (600).

5. A composite material engine casing metal parts bonding tool according to any one of claims 1-3, characterized in that: The support seat (301) comprises a pair of supports (301a), the two supports (301a) are spliced ​​together to form a circular hole that matches the outer surface of the engine housing (500), and the limit block (302) is arranged on one side of the top of the two supports (301a).

6. A composite material engine casing metal parts bonding tool according to claim 5, characterized in that: The base (100) is provided with a slide groove that cooperates with the support (301a), and a third connecting screw (301b) is provided in the slide groove. The bottom of the support (301a) is fixed in the slide groove by the third connecting screw (301b), and the top of the support (301a) is fixedly connected by a connecting key (301c).

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