A cable cover support bonding and positioning fixture and bonding method

Abstract

This invention relates to the field of engine housing technology and discloses a cable cover support bonding and positioning fixture and bonding method. The fixture includes an adapter plate and a positioning plate. The adapter plate is configured to be fitted and fixed to the front or rear skirt end face of the housing. The adapter plate has at least one first fixing structure. The positioning plate extends along a first direction, and two second fixing structures are respectively provided at both ends of the positioning plate along the first direction. The second fixing structures correspond to the first fixing structures, so that both ends of the positioning plate are respectively positioned and connected to the corresponding adapter plates. Multiple third fixing structures are provided in the middle of the positioning plate, which are used to position and connect the positioning plate to the support. This invention achieves precise positioning of the housing and support through the cooperation of the adapter plate and the positioning plate, and improves the bonding strength between the housing and the support through multiple curing processes, thereby improving the accuracy and stability of the support bonding and the accuracy and stability of the cable cover installation.

Description

Technical Field

[0001] This invention relates to the field of engine housing technology, and in particular to a cable cover support bonding and positioning fixture and bonding method. Background Technology

[0002] The application of fiber-wound engine casings in missile weapons and rocket engines is becoming increasingly widespread. Wound engines typically connect various components via cables outside the casing to achieve information transmission. However, cables are easily damaged during actual use. To protect the cables, cable covers are often installed on the outside of the fiber-wound engine casing to protect them and ensure normal signal transmission. The cable cover and the fiber-wound engine casing are generally connected by a cable cover support. The installation accuracy of the cable cover support directly affects the installation accuracy of the cable cover and ultimately affects the flight status of the entire missile weapon or solid rocket.

[0003] In the existing technology, there is no stable, feasible, and highly accurate positioning tooling and installation scheme for the positioning and installation of cable cover supports. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and to propose a cable cover support bonding and positioning fixture and bonding method, thereby solving the technical problem of low positioning accuracy of cable cover supports in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a cable cover support bonding and positioning fixture, comprising an adapter plate and a positioning plate. The adapter plate is configured to be fitted and fixed to the front skirt end face or the rear skirt end face of the housing, and the adapter plate is provided with at least one first fixing structure; The positioning plate extends along a first direction, and two second fixing structures are respectively provided at both ends of the positioning plate along the first direction. The second fixing structures correspond to the first fixing structures so that the two ends of the positioning plate are respectively positioned and connected to the corresponding adapter plates. A plurality of third fixing structures are provided in the middle of the positioning plate, and the third fixing structures are used to position and connect the positioning plate to the support. Wherein, the first direction is perpendicular to the front skirt end face and the rear skirt end face of the housing.

[0006] Preferably, the first fixing structure includes a first positioning hole and a first fixing hole, and the two first fixing holes are respectively disposed on both sides of the first positioning hole along the second direction; The second fixing structure includes a second positioning hole and a second fixing hole, wherein the second positioning hole is provided corresponding to the first positioning hole and the second fixing hole is provided corresponding to the first fixing hole; The second direction is perpendicular to the first direction and the central axis of the first positioning hole.

[0007] Preferably, the positioning plate includes a first end and a second end along the first direction, wherein the second positioning hole and the second fixing hole at the first end are both round holes; and the second positioning hole and the second fixing hole at the second end are both oblong holes.

[0008] Preferably, the third fixing structure includes a third positioning hole and a third fixing hole, wherein the third fixing hole is disposed on one side of the third positioning hole along the first direction.

[0009] Preferably, each adapter plate has two first fixing structures, and each positioning plate has two corresponding first fixing structures; each positioning plate has four third fixing structures, and the four third fixing structures are spaced apart along a first direction.

[0010] Secondly, the present invention also provides a method for bonding a cable cover support, using the cable cover support bonding and positioning fixture described above, which includes the following steps: S1. Treat the bonding surfaces of the support and the shell, and bond and fix the transition piece at the bonding surface of the support; S2. Fix the support to the positioning plate through the third fixing structure, and apply adhesive to the end of the transition piece away from the support. After the adhesive is applied, let the support air dry for a preset time. S3. Fix the two adapter plates to the front skirt end face and the rear skirt end face of the housing respectively. Then, place the side of the positioning plate with the support facing the housing, and fix the two ends of the positioning plate to the two adapter plates through the first fixing structure and the second fixing structure. S4. Drive the support towards the housing through the third fixed structure, and make the transition piece abut against the housing until the transition piece abuts against the housing for a preset abutment time. S5. Send the shell, support and bonding positioning fixture into the curing oven for pre-curing. S6. Remove the bonding and positioning fixture, and wrap the resin-impregnated fiber around the groove in the middle of the support in a circumferential manner to the preset number of turns. S7. Transfer the fiber-wound support and shell into the curing oven for final curing.

[0011] Preferably, the positioning plate includes a first end and a second end along a first direction, and the second fixing structure includes a second positioning hole and a second fixing hole. Both the second positioning hole and the second fixing hole at the first end are round holes, and both the second positioning hole and the second fixing hole at the second end are oblong holes. The method includes the following steps: The support is fixedly installed on the side closest to the first end of the positioning plate; The positioning plate is fixedly connected to the two adapter plates, and the first end is close to the end face of the front skirt or the end face of the rear skirt. Drive the support to move towards the housing. After the transition piece abuts against the housing for a preset abutment time to reach the preset pressure, send the housing, support and bonding positioning fixture together into the curing oven for the first pre-curing. After the shell is removed from the furnace, the first fixing structure, the second fixing structure and the third fixing structure are disassembled to disengage the support, positioning plate and adapter plate from the connected state. The support is fixedly installed on the side near the first end of the positioning plate by a third fixing structure; The positioning plate is fixedly connected to the two adapter plates, and the first end is close to the end face of the rear skirt or the end face of the front skirt. Drive the support to move towards the housing. After the transition piece abuts against the housing for a preset abutment time to reach the preset pressure, send the housing, support and bonding positioning fixture together into the curing oven for a second pre-curing.

[0012] Preferably, the curing parameters for the first and second pre-curing are as follows: heating rate of 1℃ / min to 2℃ / min, curing temperature of 60℃ to 70℃, curing time of 2 hours to 4 hours, and after curing, the temperature is lowered to 50℃ or below in the oven before being removed from the oven. The final curing heating rate is 1℃ / min to 2℃ / min, the curing temperature is 60℃ to 70℃, the curing time is 10 hours to 15 hours, and after curing, the oven temperature is lowered to 50℃ or below before being removed from the oven.

[0013] Preferably, the preset drying time is 30 to 60 minutes.

[0014] Preferably, step S1 includes the following steps: The supports are anodized or painted. Expose the bonding surface of the support, protect the remaining surfaces of the support, roughen the bonding surface at the bottom of the support, then wipe and clean the bonding surface of the support with a cleaning agent, and use adhesive to bond and fix the transition piece to the bonding surface of the support. Protect the area around the bonding surface of the housing, then roughen the bonding surface by sanding, and finally wipe and clean the bonding surface of the housing with a cleaning agent after sanding and roughening.

[0015] Compared with the prior art, the cable cover support bonding and positioning fixture and bonding method provided in this embodiment of the invention have the following advantages: In this invention, the support is fixed to the positioning plate by a third fixing structure, thereby fixing the relative position of the support and the positioning plate. Then, two adapter plates are respectively attached to the front skirt end face and the rear skirt end face of the housing, and the two ends of the positioning plate are respectively connected to the two adapter plates to achieve the positioning of the positioning plate and the housing. Finally, the support and the housing are accurately positioned, which improves the installation accuracy and consistency of the support, and ultimately improves the installation accuracy and consistency of the cable cover. Attached Figure Description

[0016] Figure 1 This is a top view of the invention in use; Figure 2 This is a side view of the invention in use. Figure 3 This is a schematic diagram of the positioning plate of the present invention; Figure 4 This is a schematic diagram of the adapter plate of the present invention.

[0017] In the diagram: 1. Adapter plate; 11. First fixing structure; 111. First positioning hole; 112. First fixing hole; 2. Positioning plate; 21. Second fixing structure; 211. Second positioning hole; 212. Second fixing hole; 22. Third fixing structure; 221. Third positioning hole; 222. Third fixing hole; 23. First end; 24. Second end; 3. Support; 4. Shell; 41. Front skirt end face; 42. Rear skirt end face. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, and are not used to describe a particular order, hierarchy, or importance of components.

[0020] It should be noted that, unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention. Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, positioned in a specific orientation such as "horizontal," "vertical," or "suspended," can have an error / deviation of ±10% relative to that orientation, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still fulfill its function in the present invention.

[0021] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces). In the accompanying drawings, the first direction is marked as X, and the second direction is marked as Y.

[0025] To address the technical problem of poor installation accuracy and stability of cable cover supports, which leads to poor installation accuracy and stability of cable cover supports, this invention provides a cable cover support bonding and positioning fixture and bonding method. The bonding and positioning fixture achieves precise positioning of the relative position between the support and the housing, thereby enabling the support to be accurately bonded to the housing, thus improving the installation accuracy and consistency of the cable cover.

[0026] like Figures 1 to 4 As shown, a preferred embodiment of the present invention provides a cable cover support bonding and positioning fixture, which includes an adapter plate 1 and a positioning plate 2.

[0027] The adapter plate 1 is configured to be attached to the front skirt end face 41 or the rear skirt end face 42 of the housing 4, and the adapter plate 1 is provided with at least one first fixing structure 11; The positioning plate 2 extends along the first direction. Two second fixing structures 21 are respectively provided at both ends of the positioning plate 2 along the first direction. The second fixing structures 21 correspond to the first fixing structures 11 so that the two ends of the positioning plate 2 are respectively positioned and connected to the corresponding adapter plate 1. Multiple third fixing structures 22 are provided in the middle of the positioning plate 2. The third fixing structures 22 are used to position and connect the positioning plate 2 to the support 3. The first direction is perpendicular to the front skirt end face 41 and the rear skirt end face 42 of the housing 4.

[0028] Specifically, in this embodiment, the bonding and positioning fixture includes two parts: an adapter plate 1 and a positioning plate 2. The adapter plate 1 is used to abut against the front skirt end face 41 and the rear skirt end face 42 of the housing 4. The positioning plate 2 is fixedly installed with a support 3 through a third fixing structure 22. The two adapter plates 1 are then used to install the positioning plate 2 through the cooperation of the first fixing structure 11 and the second fixing structure 21, thereby limiting the relative position of the positioning plate 2 and the housing 4, and thus stably limiting the relative position of the support 3 and the housing 4, ultimately improving the installation accuracy and consistency of the support 3.

[0029] The first fixing structure 11, the second fixing structure 21 and the third fixing structure 22 can adopt a variety of connection structures, preferably a technical solution of positioning holes or screw holes combined with positioning pins, bolts or screws.

[0030] In one embodiment, the first fixing structure 11 includes a first positioning hole 111 and a first fixing hole 112, with the two first fixing holes 112 respectively disposed on both sides of the first positioning hole 111 along the second direction; The second fixing structure 21 includes a second positioning hole 211 and a second fixing hole 212. The second positioning hole 211 is correspondingly provided with the first positioning hole 111, and the second fixing hole 212 is correspondingly provided with the first fixing hole 112. The second direction is perpendicular to the first direction and the central axis of the first positioning hole 111.

[0031] Specifically, in this embodiment, the positioning plate 2 and the adapter plate 1 are first positioned by passing positioning pins or positioning bolts sequentially through the second positioning hole 211 and the first positioning hole 111. Then, bolts or screws are used to sequentially connect the corresponding second fixing hole 212 and the first fixing hole 112, thereby achieving the positioning connection between the adapter plate 1 and the positioning plate 2. The presence of two first fixing holes 112, positioned along the second direction on both sides of the first positioning hole 111, improves the connection effect between the positioning plate 2 and the adapter plate 1, enhances the stability and reliability of the connection, and avoids the problem of reduced accuracy due to loose connection.

[0032] It should be noted that since the housing 4 is a ring-shaped or arc-shaped structure and the support 3 is also installed on the outer circumferential surface of the housing, the second direction is not the same for different first fixing holes 112. Therefore, the line connecting the two first fixing holes 112 is restricted to be perpendicular to the central axis of the first positioning hole 111 and also perpendicular to the first direction, which is also parallel to the axial direction of the housing 4.

[0033] In one embodiment, the positioning plate 2 includes a first end 23 and a second end 24 along a first direction. The second positioning hole 211 and the second fixing hole 212 at the first end 23 are both round holes; the second positioning hole 211 and the second fixing hole 212 at the second end 24 are both oblong holes.

[0034] Specifically, in this embodiment, to ensure the accurate positioning of the support 3, the positioning plate 2 is divided into two parts, left and right, namely the first end 23 and the second end 24, and the second fixing structure 21 is also divided into left and right parts. The second positioning hole 211 and the second fixing hole 212 in the second fixing structure 21 at the first end 23 are both round holes, enabling accurate positioning of the third fixing structure 22 and the support 3. The second positioning hole 211 and the second fixing hole 212 in the second fixing structure at the second end 24 are both oblong holes, designed to accommodate shells 4 of different thicknesses and precisions. This ensures that after the adapter plate 1 abuts against the front skirt end face 41 and the rear skirt end face 42 of the shell 4, and after the first end 23 of the positioning plate 2 is fixedly connected to one adapter plate 1, the second end 24 of the positioning plate 2 can be stably fixedly connected to another adapter plate 1, providing slack for the installation of the positioning plate 2, improving its adaptability, stability, and ease of installation.

[0035] In one specific embodiment, the diameter of the second positioning hole 211 at the first end 23 is 8 mm. The positioning plate 2 and the adapter plate 1 are positioned and connected by a positioning pin passing through the second positioning hole 211 and the first positioning hole 111 in sequence. The second fixing hole 212 at the first end 23 is an 8 mm threaded hole. The first fixing hole 112 is also an 8 mm threaded hole. The positioning plate 2 and the adapter plate 1 are fixedly connected by an M8×20 fixing screw. The first end 23 and the second end 24 are connected by the same fixing screw and positioning pin.

[0036] In one embodiment, the third fixing structure 22 includes a third positioning hole 221 and a third fixing hole 222, with the third fixing hole 222 disposed on one side of the third positioning hole 221 along a first direction.

[0037] In this embodiment, the third positioning hole 221 is used to achieve precise positioning of the support 3 and the positioning plate 2, while the third fixing hole 222, in conjunction with the third positioning hole 221, enables the positioning and installation of the support 3, ensuring the installation accuracy of the support 3. In this embodiment, only one third fixing hole 222 is provided corresponding to the third positioning hole 221. However, in some other embodiments, two third fixing holes 222 can also be provided, with the two third fixing holes 222 arranged on both sides of the third positioning hole 221 along the first direction.

[0038] It should also be noted that, in a specific embodiment, the third positioning hole 221 is a circular threaded hole that is compatible with the M6 ​​support positioning screw, while the third fixing hole 222 is an oblong hole. In actual installation, the M6 ​​support positioning screw is installed in both the third positioning hole 221 and the third fixing hole 222. Through the support positioning screw, a stable connection between the support 3 and the positioning plate 2 can be achieved.

[0039] In one embodiment, a single adapter plate 1 is provided with two first fixing structures 11, and a positioning plate 2 is provided with two corresponding first fixing structures 11; a single positioning plate 2 is provided with four third fixing structures 22, and the four third fixing structures 22 are spaced apart along a first direction.

[0040] In this embodiment, the first fixing structure 11 on a single adapter plate 1 varies depending on the requirements. In this embodiment, the adapter plate 1 is provided with two first fixing structures 11, thus two positioning plates 2 are provided on the outer side of the housing 4. In other embodiments, when there are many supports 3, three or more first fixing structures 11 can be provided, and correspondingly, three or more positioning plates 2 will also be provided, with the multiple positioning plates 2 arranged along the arc surface of the outer periphery of the housing 4. In other embodiments, when there are many supports 3, one positioning plate 2 can also be provided, and this positioning plate 2 needs to be designed as an arc-shaped structure coaxial with the housing 4, and multiple second fixing structures 21 are provided on this positioning plate 2, which can also meet the positioning and installation requirements of multiple supports 3.

[0041] Furthermore, in this embodiment, a total of eight supports 3 are required to properly install the cable cover. In addition to two positioning plates 2, four third fixing structures 22 need to be set on a single positioning plate 2 to meet the requirement of installing eight supports 3 at the same time. The third fixing structures 22 are set in pairs and are respectively set on both sides of the positioning plate 2 along the first direction.

[0042] In other embodiments, although eight supports 3 are required, if only four are installed near the front skirt end face 41 or the rear skirt end face 42 each time, then two third fixing structures 22 can be provided on one side of a single positioning plate 2 or four third fixing structures 22 can be provided on one side of a single arc-shaped positioning plate 2.

[0043] Furthermore, in one specific embodiment, the adapter plate 1 is fixed to the front skirt end face 41 or the rear skirt end face 42 of the housing 4 using M12 screws and nuts. The two adapter plates 1 can be staggered or symmetrically arranged on the two end faces, but staggered arrangement is preferred.

[0044] The present invention also provides a method for bonding a cable cover support, using the cable cover support bonding and positioning fixture described above, which includes the following steps: S1. Treat the bonding surface between the support 3 and the shell 4, and bond and fix the transition piece at the bonding surface of the support 3. S2. Fix the support 3 to the positioning plate 2 through the third fixing structure 22, and apply adhesive to the end of the transition piece away from the support 3. After the adhesive is applied, let the support 3 air dry for a preset time. S3. The two adapter plates 1 are respectively attached and fixed to the front skirt end face 41 and the rear skirt end face 42 of the housing 4. Then, the side of the positioning plate 2 with the support 3 is facing the housing 4, and the two ends of the positioning plate 2 are fixedly connected to the two adapter plates 1 through the first fixing structure 11 and the second fixing structure 21. S4. Drive the support 3 toward the housing 4 through the third fixing structure 22, and make the transition piece abut against the housing 4 until the transition piece abuts against the housing 4 for a preset abutment time. S5. Send the shell 4, support 3 and bonding positioning fixture into the curing oven for pre-curing. S6. Remove the bonding and positioning fixture, and wrap the resin-impregnated fiber around the groove in the middle of the support 3 in a circumferential manner to the preset number of turns. S7. Transfer the fiber-wound support 3 and shell 4 into the curing oven for final curing.

[0045] In this embodiment, the fiber-wound shell 4 and support 3 structures need to be fabricated first. The specific fabrication process depends on the actual product requirements and is common in the field. Only the shell 4 and support 3 that meet the requirements need to be fabricated, so it will not be described in detail here. The machining of the bonding and positioning fixture is done using conventional machining methods to create the shape and various holes, which will also not be described in detail here. After the fixture, support 3, and shell 4 are prepared, the bonding of support 3 can begin. Because the initial machining is relatively rough, the support 3 and shell 4 need to be surface-treated first. This is to prevent corrosion and to increase the bonding strength between support 3 and shell 4, thereby improving the stability and reliability of the bonded support 3. After the support 3 and housing 4 are processed, the support 3 can be fixedly installed on the positioning plate 2 using support positioning screws in conjunction with the third positioning hole 221 and the third fixing hole 222. Specifically, the relative positions of multiple supports 3 and the positioning plate 2 are first determined by the third positioning hole 221, and then the support 3 and the positioning plate 2 are fixedly connected by the third fixing hole. After the support 3 is installed, the adapter plate 1 can be installed on the front skirt end face 41 and the rear skirt end face 42 of the housing 4, and adhesive is applied to the transition surface of the support 3. The adhesive is then allowed to stand for a period of time. It should be noted that the installation of the support 3 and the adapter plate 1 can be carried out simultaneously. The adhesive can be applied after the support 3 is installed, or the adhesive application rhythm can be adjusted according to the production process. Similarly, the positioning plate 2 and the adapter plate 1 are fixed by first inserting positioning pins or screws into the positioning holes, and then fixing them by screws in conjunction with the fixing holes. After the adhesive has settled, the support 3 is brought closer to the housing 4 by tightening the positioning screws in the third positioning hole 221 until the elastic layer transition piece is in contact with the surface of the housing 4. Then, a torque wrench is used to continue tightening the screws to a torque of 2 Nm to 5 Nm, and this is maintained for a preset contact time to ensure that the pressure between the support and the housing reaches a preset pressure, thus ensuring the stability of the initial connection between the support 3 and the housing 4. After the initial bonding between the support 3 and the housing 4 is completed, the support 3 and the housing 4 need to be heated for pre-curing to ensure the stability of the bonding state. In a secondary embodiment, all supports 3 are installed at once and then pre-cured at once, but there is a problem of low accuracy on one side. In the preferred embodiment, the supports 3 can be bonded and pre-cured in sections. In this case, the pre-curing and bonding work needs to be performed multiple times, which has the advantage of reducing errors and improving the installation accuracy of the supports 3. Once all supports 3 have been pre-cured, the positioning plate 2 and the adapter plate 1 can be removed, and fibers can be wound around the grooves of the supports 3. These fibers can be single-strand carbon fibers impregnated with room-temperature curing resin. Wrapping these fibers with room-temperature curing resin multiple times can further improve the connection strength between the supports 3 and the shell 4.After the fiber winding is completed, the housing 4 and the support 3 can be sent together into the curing oven for final curing, which further improves the connection strength between the support 3 and the housing 4, making the subsequent installation of the cable cover more stable and reliable.

[0046] In one embodiment, the positioning plate 2 includes a first end 23 and a second end 24 along a first direction, and the second fixing structure 21 includes a second positioning hole 211 and a second fixing hole 212. The second positioning hole 211 and the second fixing hole 212 at the first end 23 are both round holes, and the second positioning hole 211 and the second fixing hole 212 at the second end 24 are both oblong holes. The process includes the following steps: The support 3 is fixedly installed on one side near the first end 23 of the positioning plate 2; The positioning plate 2 is fixedly connected to the two adapter plates 1, and the first end 23 is close to the front skirt end face 41 or the rear skirt end face 42. Drive the support 3 to move towards the housing 4. After the pressure between the transition piece and the housing 4 reaches the preset pressure, send the housing 4, the support 3 and the bonding positioning fixture into the curing oven for the first pre-curing. After the shell 4 is removed from the furnace, the first fixing structure 11, the second fixing structure 21 and the third fixing structure 22 are disassembled to disengage the support 3, the positioning plate 2 and the adapter plate 1 from the connected state. The support 3 is fixedly installed on the side near the first end 23 of the positioning plate 2 by the third fixing structure 22; The positioning plate 2 is fixedly connected to the two adapter plates 1, and the first end 23 is close to the rear skirt end face 42 or the front skirt end face 41. Drive the support 3 to move towards the housing 4. After the pressure between the transition piece and the housing 4 reaches the preset pressure, send the housing 4, support 3 and bonding positioning fixture into the curing oven for a second pre-curing.

[0047] In this embodiment, the shapes of the second positioning holes 211 at both ends of the positioning plate 2 are different. The second positioning hole 211 and the second fixing hole 212 at the first end 23 are both round holes, which have higher precision. However, the second positioning hole 211 and the second fixing hole 212 at the second end 24 are both oblong holes, which have lower precision. Therefore, in order to maintain the precision requirements during actual installation, the support 3 is only installed on one side of the first end 23 of the positioning plate 2, which requires two bonding processes for the support 3. Specifically, the support 3 is first installed on the side close to the first end 23 of the positioning plate 2 through the third positioning hole 221 and the third fixing hole 222. Then, both ends of the positioning plate 2 are connected to the two adapter plates 1, and the first end 23 of the positioning plate 2 is controlled to be close to the front skirt end plate of the housing 4, thereby installing the support 3 on the front side of the housing 4. After the support 3 on the front side of the housing 4 is installed and the first pre-curing is completed, the connection between the positioning plate 2, the support 3, and the adapter plate 1 can be removed. The support 3 is then reinstalled through the third positioning hole 221 and the third fixing hole 222 near the first end 23 of the positioning plate 2. Subsequently, the positioning plate 2 is installed on the adapter plate 1, and the first end 23 of the positioning plate 2 is positioned close to the rear skirt end face of the housing 4. This completes the installation of the support 3 on the rear side of the housing 4, and a second pre-curing is performed on the support 3 installed on the rear side of the housing 4. Finally, fibers are uniformly wrapped around all the supports 3 and uniformly cured. The technical solution adopted is to first bond and pre-cure the front support 3 of the housing 4, then bond and pre-cure the rear support 3 of the housing 4, and finally wind all the supports 3 with fibers and perform final curing. This greatly improves the bonding accuracy of the front and rear supports 3 of the housing 4, and further improves the bonding strength of the supports 3 through multiple curing processes. It avoids the problems of insufficient positioning accuracy and insufficient bonding strength of the supports 3, thereby ensuring the stability and reliability of the bonding of the supports 3, as well as the installation accuracy and reliability of the cable cover.

[0048] In one specific embodiment, the curing parameters for the first pre-curing and the second pre-curing are as follows: the heating rate is 1℃ / min to 2℃ / min, the curing temperature is 60℃ to 70℃, the curing time is 2 hours to 4 hours, and after curing, the temperature is lowered to 50℃ or below in the oven before being removed from the oven. The final curing heating rate is 1℃ / min to 2℃ / min, the curing temperature is 60℃ to 70℃, the curing time is 10 hours to 15 hours, and after curing, the oven temperature is lowered to 50℃ or below before being removed from the oven.

[0049] Furthermore, the preset drying time is 30 to 60 minutes. This can greatly improve the bonding strength between the support 3 and the shell 4, avoiding problems such as poor positioning accuracy of the cable cover and cable damage that may be caused by the misalignment of the support 3 and insufficient load-bearing capacity.

[0050] In one embodiment, step S1 includes the following steps: The support 3 is subjected to anodizing or painting treatment. If the support 3 is made of titanium alloy, the entire surface of the support 3 needs to be anodized. If the support 3 is made of steel, the entire surface of the support 3 needs to be painted to prevent corrosion and other problems from occurring later.

[0051] The bonding surface of support 3 is exposed, while the remaining surfaces of support 3 are protected. The bonding surface at the bottom of support 3 is roughened. Then, a cleaning agent is used to wipe and clean the bonding surface of support 3, and an adhesive is used to bond and fix the transition piece to the bonding surface of support 3. After the anti-corrosion treatment of support 3, the bonding surface of support 3 also needs to be treated. First, polytetrafluoroethylene fiberglass tape is wrapped around the other surfaces of support 3, exposing the bonding surface. Then, a sandblasting device is used to roughen the bonding surface of support 3, thereby improving the interfacial bonding strength of support 3. After roughening, industrial wiping paper soaked in ethyl acetate is used to clean the sandblasted bonding surface of support 3, and an adhesive is used to bond the elastic layer transition piece to the bonding surface of support 3.

[0052] Protect the area around the bonding surface of housing 4, then roughen the bonding surface of housing 4 by sanding, and finally wipe and clean the bonding surface of housing 4 with a cleaning agent. The bonding surface of housing 4 also needs to be roughened. Specifically, first use polytetrafluoroethylene fiberglass tape to protect the area of ​​housing 4 within 30 to 50 millimeters around the bonding surface, and then use sandpaper to sand the bonding surface of housing 4. During the sanding process, do not abrade the fibers of housing 4. After sanding, use industrial wiping paper soaked in ethyl acetate to wipe and clean the sanded area of ​​housing 4, ensuring that there are no excess foreign objects.

[0053] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A cable cover support bonding positioning tool for fixing a support to a housing, characterized by, include: An adapter plate is configured to be fitted and fixed to the front skirt end face or the rear skirt end face of the housing, and the adapter plate is provided with at least one first fixing structure; A positioning plate extends along a first direction, and two second fixing structures are respectively provided at both ends of the positioning plate along the first direction. The second fixing structures correspond to the first fixing structures so that the two ends of the positioning plate are respectively positioned and connected to the corresponding adapter plates. A plurality of third fixing structures are provided in the middle of the positioning plate, and the third fixing structures are used to position and connect the positioning plate to the support. Wherein, the first direction is perpendicular to the front skirt end face and the rear skirt end face of the housing.

2. The cable cover support bonding and positioning fixture according to claim 1, characterized in that, The first fixing structure includes a first positioning hole and a first fixing hole, with the two first fixing holes respectively disposed on both sides of the first positioning hole along the second direction; The second fixing structure includes a second positioning hole and a second fixing hole, wherein the second positioning hole is provided corresponding to the first positioning hole, and the second fixing hole is provided corresponding to the first fixing hole; The second direction is perpendicular to the first direction and the central axis of the first positioning hole.

3. The cable shield support adhesive positioning fixture of claim 2, wherein, The positioning plate includes a first end and a second end along a first direction. The second positioning hole and the second fixing hole at the first end are both round holes; the second positioning hole and the second fixing hole at the second end are both oblong holes.

4. The cable shield support adhesive positioning fixture of claim 1, wherein, The third fixing structure includes a third positioning hole and a third fixing hole, wherein the third fixing hole is disposed on one side of the third positioning hole along the first direction.

5. The cable cover support bonding and positioning fixture according to claim 1, characterized in that, Each adapter plate is provided with two first fixing structures, and each positioning plate is provided with two corresponding first fixing structures; each positioning plate is provided with four third fixing structures, and the four third fixing structures are spaced apart along a first direction.

6. A method for bonding cable cover supports, characterized in that, The cable cover support bonding and positioning fixture as described in any one of claims 1 to 5 includes the following steps: S1. Treat the bonding surfaces of the support and the shell, and bond and fix the transition piece at the bonding surface of the support; S2. Fix the support to the positioning plate through the third fixing structure, and apply adhesive to the end of the transition piece away from the support. After the adhesive is applied, let the support air dry for a preset time. S3. Fix the two adapter plates to the front skirt end face and the rear skirt end face of the housing respectively. Then, place the side of the positioning plate with the support facing the housing, and fix the two ends of the positioning plate to the two adapter plates through the first fixing structure and the second fixing structure. S4. Drive the support towards the housing through the third fixed structure, and make the transition piece abut against the housing until the transition piece abuts against the housing for a preset abutment time. S5. Send the shell, support and bonding positioning fixture into the curing oven for pre-curing. S6. Remove the bonding and positioning fixture, and wrap the resin-impregnated fiber around the groove in the middle of the support in a circumferential manner to the preset number of turns. S7. Transfer the fiber-wound support and shell into the curing oven for final curing.

7. The cable cover support bonding method according to claim 6, characterized in that, The positioning plate includes a first end and a second end along a first direction. The second fixing structure includes a second positioning hole and a second fixing hole. The second positioning hole and the second fixing hole at the first end are both round holes, and the second positioning hole and the second fixing hole at the second end are both oblong holes. The process includes the following steps: The support is fixedly installed on the side closest to the first end of the positioning plate; The positioning plate is fixedly connected to the two adapter plates, and the first end is close to the end face of the front skirt or the end face of the rear skirt. Drive the support to move towards the housing. After the transition piece abuts against the housing for a preset abutment time to reach the preset pressure, send the housing, support and bonding positioning fixture together into the curing oven for the first pre-curing. After the shell is removed from the furnace, the first fixing structure, the second fixing structure and the third fixing structure are disassembled to disengage the support, positioning plate and adapter plate from the connected state. The support is fixedly installed on the side near the first end of the positioning plate by a third fixing structure; The positioning plate is fixedly connected to the two adapter plates, and the first end is close to the end face of the rear skirt or the end face of the front skirt. Drive the support to move towards the housing. After the transition piece abuts against the housing for a preset abutment time to reach the preset pressure, send the housing, support and bonding positioning fixture together into the curing oven for a second pre-curing.

8. The cable cover support bonding method according to claim 7, characterized in that, The heating rate for the first pre-curing is 1℃ / min to 2℃ / min, the curing temperature is 60℃ to 70℃, the curing time is 2 hours to 4 hours, and after curing, the oven temperature is lowered to 50℃ or below before being removed from the oven. The heating rate for the second pre-curing is 1℃ / min to 2℃ / min, the curing temperature is 60℃ to 70℃, the curing time is 2 hours to 4 hours, and after curing, the temperature is lowered to 50℃ or below before being removed from the oven. The final curing heating rate is 1℃ / min to 2℃ / min, the curing temperature is 60℃ to 70℃, the curing time is 10 hours to 15 hours, and after curing, the oven temperature is lowered to 50℃ or below before being removed from the oven.

9. The cable cover support bonding method according to claim 6, characterized in that, The preset drying time is 30 to 60 minutes.

10. The cable cover support bonding method according to claim 6, characterized in that, Step S1 includes the following steps: The supports are anodized or painted. Expose the bonding surface of the support, protect the remaining surfaces of the support, roughen the bonding surface at the bottom of the support, then wipe and clean the bonding surface of the support with a cleaning agent, and use adhesive to bond and fix the transition piece to the bonding surface of the support. Protect the area around the bonding surface of the housing, then roughen the bonding surface by sanding, and finally wipe and clean the bonding surface of the housing with a cleaning agent after sanding and roughening.

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