Coaxial bonding device

Abstract

The utility model discloses a coaxial bonding device which comprises a first positioning part, an adjusting assembly and a second positioning part, the first positioning part, the adjusting assembly and the second positioning part are sequentially connected, and the first positioning part and the second positioning part are arranged on the two opposite sides of the adjusting assembly. A containing cavity is formed in the first positioning part, the adjusting assembly and the second positioning part. The first positioning part comprises a first positioning piece and a limiting piece, the first positioning piece is arranged at one end of the second positioning part, the limiting piece is arranged on the side, away from the adjusting assembly, of the first positioning piece, and the limiting piece is detachably connected with the first positioning piece; the position of the limiting piece corresponds to the position of the accommodating cavity; the side, close to the adjusting assembly, of the second positioning part is provided with a limiting part, and the limiting part is matched with the limiting piece.

Description

Technical Field

[0001] The present application relates to the technical field of bonding tooling, and more specifically, to a coaxial bonding device. Background Art

[0002] Acoustic coverings in the field of underwater acoustics generally refer to covering materials that are composed of polymer viscoelastic materials such as rubber and polyurethane and specific internal acoustic structures and have one or more acoustic functions (such as sound absorption, sound insulation, sound transmission, etc.). They are mainly used to adjust the acoustic characteristics of underwater equipment. Underwater acoustic sound pipe testing is one of the main technical approaches to carry out acoustic performance testing and identification of acoustic coverings, and plays an important role in the development of acoustic coverings. The processing quality of acoustic covering layer sound pipe test samples (including sample size and bonding performance, etc.) is crucial to accurately characterize the acoustic performance of the acoustic covering.

[0003] At present, underwater acoustic test sound pipes are mainly built with cylindrical pressure-resistant metal pipes. According to the different inner diameters of the pipes, domestic underwater acoustic test sound pipe devices mainly have three specifications: 57mm, 120mm and 208mm. The acoustic coating layer sound pipe test sample to be tested also needs to be prepared into a cylindrical shape and placed coaxially in the pipe of the underwater acoustic test sound pipe. The diameter of the sound pipe test sample should be slightly smaller than the inner diameter of the sound pipe (usually, the corresponding diameters are 56mm, 118mm and 206mm respectively). The acoustic coating layer containing the internal acoustic structure usually needs to be prepared into a multi-layer structure, and each layer of the structure is bonded and formed with a special glue to obtain the final acoustic coating layer product.

[0004] In the process of processing and preparing the acoustic covering layer sound tube test specimens, it is usually necessary to process multiple cylindrical layer components separately, and then use special glue to bond them as a whole; in addition, in order to simulate the different application boundaries of the acoustic covering layer, the sound tube test specimens often need to be bonded with backings of different materials and sizes. In the above bonding process, it is necessary to pay attention to the coaxiality between the bonding components to avoid the cylindrical projection of the final sound tube test specimen exceeding the inner diameter of the sound tube, otherwise it may cause changes in the test boundary conditions and affect the accuracy of the test results. If the axial deviation of the bonding component is too large, it may also cause the sample to be unable to be placed inside the sound tube, making it impossible to carry out the sound tube test smoothly. Therefore, in the bonding and molding process of the sound tube test specimen, a coaxial positioning device is required to assist in positioning during the glue curing process.

[0005] Traditional coaxial bonding positioning can use a positioning ring or a positioning clamp to hold the upper and lower parts to be bonded coaxially near the bonding surface. However, this method will inevitably cause the positioning device to maintain surface contact with the parts to be bonded. When the glue overflows, the positioning device and the parts to be bonded will be bonded, and it is usually difficult to separate them without loss. The use of forceful removal may have a certain impact on the final bonding quality.

[0006] In the prior art, patent CN105222689 A proposes a coaxial bonding measuring device for circular cakes and a method for coaxial bonding of circular cakes. The patent uses the principle that the angle bisector of the herringbone structure passes through the center of the circle, and uses a micrometer to measure the relative positions of the centers of the upper and lower circular cake structures in a specified direction, and manually adjusts them until the projection positions of the two centers in this direction coincide; repeat the above operation in another orthogonal direction until the center offset of the upper and lower circular cakes is within an acceptable deviation range.

[0007] However, the positioning adjustment device proposed in this patent does not have a positioning and holding function, and cannot meet the long-term positioning and holding requirements during the curing process of the parts to be bonded. This may cause the axial position of the parts to be bonded to shift during the curing process of the glue, and the final bonding coaxiality cannot be guaranteed.

[0008] Therefore, there is an urgent need for a coaxial positioning device that can achieve long-term positioning and is easy to separate from the parts to be bonded. Utility Model Content

[0009] One object of the present application is to provide a new technical solution for a coaxial bonding device.

[0010] According to the first aspect of the present application, a coaxial bonding device is provided. The coaxial bonding device comprises a first positioning portion, an adjustment component, and a second positioning portion, wherein the first positioning portion, the adjustment component, and the second positioning portion are connected in sequence, the first positioning portion and the second positioning portion are arranged on opposite sides of the adjustment component, and a receiving cavity is formed inside the first positioning portion, the adjustment component, and the second positioning portion; the first positioning portion comprises a first positioning member and a limiting member, wherein the first positioning member is arranged at an end of the adjustment component away from the second positioning member, and the limiting member is arranged at a side of the first positioning member away from the adjustment component, and the limiting member is detachably connected to the first positioning member, and the limiting member corresponds to the position of the receiving cavity; a limiting portion is arranged on a side of the second positioning portion close to the adjustment component, and the limiting portion cooperates with the limiting member.

[0011] Optionally, a support portion is disposed in the first positioning member, the support portion has a first limiting hole, a first limiting groove is disposed at an edge of the support portion close to the first limiting hole, and the limiting member is connected to the first limiting groove.

[0012] Optionally, the limiting member includes a first limiting member and a second limiting member, and a size of the first limiting member is larger than a size of the second limiting member.

[0013] Optionally, the first limiting member has a second limiting hole, a second limiting groove is arranged at the edge of the first limiting member close to the second limiting hole, a first limiting protrusion is arranged on the side of the first limiting member facing away from the second limiting hole, and the first limiting protrusion is connected to the first limiting groove.

[0014] Optionally, the second limiting member has a third limiting hole, and a second limiting protrusion is provided on a side of the second limiting member away from the third limiting hole, and the second limiting protrusion is connected to the second limiting groove.

[0015] Optionally, the supporting portion has a plurality of the first limiting grooves, the first limiting member has a plurality of the first limiting protrusions, and the number of the first limiting grooves is the same as the number of the first limiting protrusions; the first limiting member has a plurality of the second limiting grooves, the second limiting member has a plurality of the second limiting protrusions, and the number of the second limiting grooves is the same as the number of the second limiting protrusions.

[0016] Optionally, the limiting portion includes a first sinker, a second sinker and a third sinker, the first sinker corresponds to the position of the first limiting hole, the second sinker corresponds to the position of the second limiting hole, and the third sinker corresponds to the position of the third limiting hole.

[0017] Optionally, along the radial direction of the second positioning portion, the size of the first sinker is the same as the size of the first limiting hole, the size of the second sinker is the same as the size of the second limiting hole, and the size of the third sinker is the same as the size of the third limiting hole.

[0018] Optionally, the adjustment component has a first end, the first end is connected to the first positioning member, the first end has a first recessed portion, a first protruding portion is provided on one side of the first positioning member close to the first end, and the first protruding portion is engaged and connected with the first recessed portion.

[0019] Optionally, the adjustment component has a second end, the second end is arranged opposite to the first end, the second end is connected to the second positioning portion, the second end has a second protrusion, the second positioning portion is provided with a second recessed portion on one side close to the second end, and the second recessed portion is engaged and connected with the second protrusion.

[0020] In the embodiment of the present application, the first positioning portion cooperates with the second positioning portion to limit the position of the adhesive component, thereby preventing the components to be bonded from being misplaced during the bonding process and affecting the bonding effect. The limiting member is detachably connected to the first positioning member to facilitate replacement of the limiting member suitable for components to be bonded of different sizes, thereby effectively improving the adaptability of the coaxial bonding device.

[0021] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0023] Figure 1 is a schematic structural diagram of a coaxial bonding device in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the assembly state of the coaxial bonding device in the embodiment of the present application;

[0025] Figure 3 is a partial schematic diagram of a first positioning portion of a coaxial bonding device in an embodiment of the present application;

[0026] Figure 4 is a partial schematic diagram of an adjustment component of a coaxial bonding device in an embodiment of the present application;

[0027] Figure 5 is a schematic structural diagram of a second positioning portion of a coaxial bonding device in an embodiment of the present application;

[0028] Figure 6 It is a structural schematic diagram of a first positioning member and a limiting member of a coaxial bonding device in an embodiment of the present application;

[0029] Figure 7 : is a schematic diagram of the combined state of the first positioning part, the plurality of adjustment components and the second positioning part of the coaxial bonding device in the embodiment of the present application;

[0030] Figure 8 It is a schematic diagram of the exploded state of the first positioning part, multiple adjustment components and the second positioning part of the coaxial bonding device in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1-first positioning portion; 11-first positioning member; 111-supporting portion; 1111-first limiting hole; 1112-first limiting groove; 112-first protruding portion; 12-limiting member; 121-first limiting member; 1211-second limiting hole; 1212-second limiting groove; 1213-first limiting protrusion; 122-second limiting member; 1221-third limiting hole; 1222-second limiting protrusion; 123-through hole;

[0033] 2-adjustment component; 21-first end; 211-first recessed portion; 22-second end; 221-second protruding portion;

[0034] 3-second positioning portion; 31-limiting portion; 311-first sinking platform; 312-second sinking platform; 313-third sinking platform; 32-second recessed portion. DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0040] According to an embodiment of the present application, a coaxial bonding device is provided, which includes a first positioning portion 1, an adjustment component 2 and a second positioning portion 3, the first positioning portion 1, the adjustment component 2 and the second positioning portion 3 are connected in sequence, the first positioning portion 1 and the second positioning portion 3 are arranged on opposite sides of the adjustment component 2, and an accommodating cavity is formed inside the first positioning portion 1, the adjustment component 2 and the second positioning portion 3; the first positioning portion 1 includes a first positioning member 11 and a limiting member 12, the first positioning member 11 is arranged at an end of the adjustment component 2 away from the second positioning portion 3, the limiting member 12 is arranged on a side of the first positioning member 11 away from the adjustment component 2, the limiting member 12 is detachably connected to the first positioning member 11, and the limiting member 12 corresponds to the position of the accommodating cavity; a limiting portion 31 is arranged on a side of the second positioning portion 3 close to the adjustment component 2, and the limiting portion 31 cooperates with the limiting member 12.

[0041] like Figures 1 to 8 As shown, the columnar coaxial bonding device comprises a first positioning portion 1, an adjustment component 2 and a second positioning portion 3. The coaxial bonding device is columnar.

[0042] The first positioning portion 1, the adjusting assembly 2 and the second positioning portion 3 can be made of metal or other hard non-metal materials.

[0043] The first positioning part 1 is a top cover, and the first positioning part 1 is a ring structure with a limiting member 12. The second positioning part 3 is a bottom positioning disc, and the top cover and the bottom positioning disc cooperate to fix the components to be bonded, so as to prevent the components to be bonded from being misplaced during the bonding waiting process, thereby affecting the bonding effect.

[0044] The adjusting component 2 is disposed between the first positioning portion 1 and the second positioning portion 3 . The adjusting component 2 is used to adjust the height of the columnar coaxial bonding device so as to adapt to parts to be bonded of different heights.

[0045] like Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8 As shown, the adjusting component 2 is annular, one side of the adjusting component 2 is connected to the first positioning portion 1, and the other side is connected to the second positioning portion 3. The first positioning portion 1, the adjusting component 2 and the second positioning portion 3 are connected to form a columnar structure with an accommodating cavity inside. The accommodating cavity is used to place the component to be bonded, and the position of the component to be bonded is limited by placing the component to be bonded in the accommodating cavity.

[0046] like Figures 6 to 8 As shown, the first positioning part 1 includes a first positioning member 11 and a limiting member 12. That is to say, the top cover includes the first positioning member 11 and the limiting member 12, and the first positioning member 11 is in the shape of a hollow column. The first positioning member 11 is arranged on the top of the adjustment component 2. The limiting member 12 is in the shape of a plate, and the limiting member 12 is arranged in the first positioning member 11. The outer diameter of the limiting member 12 is smaller than the inner diameter of the first positioning member 11. The position of the limiting member 12 is limited by the first positioning member 11 to prevent the limiting member 12 from moving in the radial direction of the first positioning member 11, thereby affecting the bonding effect of the parts to be bonded.

[0047] like Figures 6 to 8 As shown, the limiting member 12 is movably connected to the first positioning member 11. The limiting member 12 is movably connected to the first positioning member 11 to facilitate replacement of limiting members 12 with different inner diameters to accommodate more components to be bonded with different sizes, thereby improving the adaptability of the coaxial bonding device.

[0048] Of course, in the embodiment of the present application, the first positioning member 11 and the limiting member 12 are not limited to the above structure, and those skilled in the art can set them according to actual needs. For example, the first positioning member 11 can be connected to the limiting member 12 by means of screws, snap-fit ​​or interference fit, and the first positioning member 11 and the limiting member 12 can also be integrally formed, and an elastic member is arranged on the inner side of the limiting member 12, one end of the elastic member abuts against the inner side of the limiting member 12, and the other end of the elastic member abuts against the outer wall of the component to be bonded, so as to achieve coaxial bonding of the components to be bonded.

[0049] The position of the limiting member 12 corresponds to that of the accommodating cavity, that is, the component to be bonded is arranged in the accommodating cavity, and the position of the component to be bonded in the radial direction is limited by the limiting member 12 to avoid dislocation of the component to be bonded during the bonding process, thereby affecting the bonding effect.

[0050] The stopper 12 is provided with a through hole 123, which is connected to the accommodating cavity. Figure 1 and Figure 3 As shown, the stopper 12 is annular and has a plurality of fan-shaped through holes 123, which are connected to the accommodating cavity, so as to facilitate the removal of the bonded components after bonding, and avoid the difficulty of removing the bonded components due to glue overflow.

[0051] Of course, in the embodiment of the present application, the through hole 123 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the through hole 123 can also be circular, elliptical, polygonal, etc.

[0052] In the embodiment of the present application, the first positioning portion 1 cooperates with the second positioning portion 3 to limit the position of the adhesive component to avoid dislocation of the component to be bonded during the bonding process, which affects the bonding effect. A through hole 123 is opened on the limiting member 12 to facilitate the removal of the bonded component.

[0053] In addition, the limiting member 12 is movably connected to the first positioning member 11, so as to facilitate replacement of the limiting member 12 adapted to the components to be bonded of different sizes, thereby effectively improving the adaptability of the coaxial bonding device.

[0054] In one example, a support portion 111 is disposed in the first positioning member 11 , the support portion 111 has a first limiting hole 1111 , a first limiting groove 1112 is disposed at an edge of the support portion 111 close to the first limiting hole 1111 , and the limiting member 12 is connected to the first limiting groove 1112 .

[0055] like Figure 3 and Figure 6 As shown, the first positioning member 11 is in the shape of a hollow column, the support portion 111 is in the shape of an annular plate, and the inner diameter of the support portion 111 is 206 mm. The outer wall of the support portion 111 abuts against the inner wall of the first positioning member 11 .

[0056] Of course, in the embodiment of the present application, the support portion 111 and the first positioning member 11 are not limited to the above structure, and those skilled in the art can configure them according to actual needs. For example, the support portion 111 and the first positioning member 11 can also be integrally formed.

[0057] The support portion 111 is an annular plate, and the first limiting hole 1111 is a through hole on the support plate. When the component to be bonded is placed in the accommodating cavity, the first limiting hole 1111 limits the position of the component to be bonded in the radial direction to avoid dislocation during the bonding process and affect the bonding effect.

[0058] like Figure 3 and Figure 6 As shown, the edge of the support portion 111 near the first limiting hole 1111 is provided with a first limiting groove 1112, that is, the upper surface of the support portion 111 and near the through hole is provided with a first limiting groove 1112. The circumferential position of the limiting member 12 is limited by the first limiting groove 1112, so as to prevent the limiting member 12 from rotating along the circumferential direction of the support portion 111 during the bonding process, thereby affecting the bonding effect of the components to be bonded.

[0059] In one example, the limiting member 12 includes a first limiting member 121 and a second limiting member 122 , and the size of the first limiting member 121 is greater than the size of the second limiting member 122 .

[0060] like Figures 6 to 8 As shown, the first stopper 121 is in the shape of an annular plate, the outer diameter of the first stopper 121 is 206 mm, and the inner diameter of the first stopper 121 is 118 mm. The outer edge of the first stopper 121 is connected to the support portion 111, and the outer edge of the first stopper 121 overlaps in the first stopper groove 1112, and the circumferential position of the first stopper 121 is limited by the first stopper groove 1112.

[0061] The size of the first limiting member 121 is greater than that of the second limiting member 122. The outer diameter of the second limiting member 122 is 118 mm, and the inner diameter of the second limiting member 122 is 56 mm.

[0062] like Figures 6 to 8 As shown, that is, the size of the part to be bonded that can be limited by the first limiter 121 is larger than the size of the part to be bonded that can be limited by the second limiter 122. By providing multiple limiters 12 to adapt to parts to be bonded of different sizes, the adaptability of the coaxial bonding device is improved.

[0063] Of course, in the embodiment of the present application, the number of the limiting members 12 is not limited to the above, and those skilled in the art can set them according to actual needs. For example, the limiting members 12 may also include a third limiting member 12, a fourth limiting member 12, and the like.

[0064] In one example, the first limiting member 121 has a second limiting hole 1211, a second limiting groove 1212 is arranged at the edge of the first limiting member 121 close to the second limiting hole 1211, a first limiting protrusion 1213 is arranged on the side of the first limiting member 121 facing away from the second limiting hole 1211, and the first limiting protrusion 1213 is connected to the first limiting groove 1112.

[0065] like Figures 6 to 8 As shown, the first limiting member 121 is in the shape of an annular plate and has a second limiting hole 1211, that is, the inner circle of the annular plate is the second limiting hole 1211, and the diameter of the second limiting hole 1211 is 118 mm.

[0066] A second limiting groove 1212 is provided at the edge of the first limiting member 121 near the second limiting hole 1211, that is, a second limiting groove 1212 is provided on the upper surface of the first limiting member 121 near the inner circle. The second limiting groove 1212 is provided to limit the circumferential position of the second limiting member 122, so as to prevent the second limiting member 122 from rotating in the circumferential direction during the bonding process to affect the bonding effect.

[0067] A first limiting protrusion 1213 is disposed on one side of the first limiting member 121 away from the second limiting hole 1211. Figures 6 to 8 As shown, that is to say, the first limiting member 121 is in the shape of an annular plate, and a first limiting protrusion 1213 is provided at the outer circumferential edge of the first limiting member 121. The first limiting protrusion 1213 is fan-shaped. The first limiting groove 1112 has the same shape as the first limiting protrusion 1213, and the size matches, that is, the first limiting protrusion 1213 is embedded in the first limiting groove 1112. The first limiting groove 1112 and the first limiting protrusion 1213 are engaged and limited to prevent the first limiting member 121 from rotating in the circumferential direction.

[0068] Of course, in the embodiment of the present application, the first limiting protrusion 1213 and the first limiting groove 1112 are not limited to the above structure, and those skilled in the art can set them according to actual needs. For example, the first limiting protrusion 1213 can also be a rectangle, a triangle, an ellipse, etc., and the first limiting groove 1112 matches the shape of the first limiting protrusion 1213.

[0069] In one example, the second limiting member 122 has a third limiting hole 1221 , and a second limiting protrusion 1222 is provided on a side of the second limiting member 122 away from the third limiting hole 1221 , and the second limiting protrusion 1222 is connected to the second limiting groove 1212 .

[0070] like Figures 6 to 8As shown, the second limiting member 122 is in the shape of an annular plate. The second limiting member 122 has a third limiting hole 1221, that is, the inner circle of the annular plate is the third limiting hole 1221. The diameter of the third limiting hole 1221 is 56 mm. The second limiting groove 1212 is used to limit the circumferential position of the second limiting member 122 to prevent the second limiting member 122 from rotating in the circumferential direction during the bonding process to affect the bonding effect.

[0071] A second limiting protrusion 1222 is disposed on a side of the second limiting member 122 away from the third limiting hole 1221. Figures 6 to 8 As shown, that is to say, the second limiting member 122 is in the shape of an annular plate, and a second limiting protrusion 1222 is provided at the outer circumferential edge of the second limiting member 122. The second limiting protrusion 1222 is fan-shaped. The second limiting groove 1212 has the same shape as the second limiting protrusion 1222, and the size matches, that is, the second limiting protrusion 1222 is embedded in the second limiting groove 1212. The second limiting groove 1212 and the second limiting protrusion 1222 are engaged and limited to prevent the second limiting member 122 from rotating in the circumferential direction.

[0072] Of course, in the embodiment of the present application, the second limiting protrusion 1222 and the second limiting groove 1212 are not limited to the above structure, and those skilled in the art can set them according to actual needs. For example, the second limiting protrusion 1222 can also be rectangular, triangular, elliptical, etc., and the second limiting groove 1212 matches the shape of the second limiting protrusion 1222.

[0073] In one example, the support portion 111 has a plurality of first limiting grooves 1112, the first limiting member 121 has a plurality of first limiting protrusions 1213, and the number of the first limiting grooves 1112 is the same as the number of the first limiting protrusions 1213; the first limiting member 121 has a plurality of second limiting grooves 1212, the second limiting member 122 has a plurality of second limiting protrusions 1222, and the number of the second limiting grooves 1212 is the same as the number of the second limiting protrusions 1222.

[0074] like Figures 1 to 3 , Figures 6 to 8 As shown, the support portion 111 is in the shape of an annular plate. The outer circumferential edge of the support portion 111 is connected to the inner wall of the first positioning member 11. A first limiting groove 1112 is provided at the upper surface edge of the support portion 111 close to the inner circle. The first limiting groove 1112 is limitedly matched with the first limiting protrusion 1213 at the outer circumferential edge of the first limiting member 121 to limit the position of the first limiting member 121 in the circumferential direction.

[0075] The upper surface of the support portion 111 is provided with a plurality of first limiting grooves 1112. The plurality of first limiting grooves 1112 are distributed in a circular array on the upper surface of the support portion 111. The outer circumferential edge of the first limiting member 121 is provided with a plurality of first limiting protrusions 1213, and the plurality of first limiting protrusions 1213 are distributed in a circular array on the outer circumferential edge of the first limiting member 121.

[0076] The number of the first limiting grooves 1112 is consistent with the number of the first limiting protrusions 1213, and each first limiting groove 1112 corresponds to a first limiting protrusion 1213. By providing a plurality of first limiting grooves 1112 and first limiting protrusions 1213, the limitation of the first limiting member 121 is strengthened.

[0077] In one example, the limiting portion 31 includes a first sinker 311, a second sinker 312 and a third sinker 313, wherein the first sinker 311 corresponds to the position of the first limiting hole 1111, the second sinker 312 corresponds to the position of the second limiting hole 1211, and the third sinker 313 corresponds to the position of the third limiting hole 1221.

[0078] like Figures 1 to 3 , Figures 6 to 8 As shown, the second positioning portion 3 includes a limiting portion 31. The second positioning portion 3 is in the shape of a circular plate and is used to support the component to be bonded and the adjustment assembly 2.

[0079] A limiting portion 31 is provided on the upper surface of the second positioning portion 3, that is, on the side of the second positioning portion 3 close to the adjustment assembly 2. The limiting portion 31 is used to limit the position of the component to be bonded in the axial direction.

[0080] The limiting portion 31 includes a first sinking platform 311, a second sinking platform 312 and a third sinking platform 313. Figure 5 As shown, the first sinker 311 , the second sinker 312 and the third sinker 313 are all circular grooves, and the diameter of the first sinker 311 is larger than the diameter of the second sinker 312 , and the diameter of the second sinker 312 is larger than the diameter of the third sinker 313 .

[0081] The diameter of the first sinker 311 is 206 mm, the diameter of the second sinker 312 is 118 mm, and the diameter of the third sinker 313 is 56 mm.

[0082] By arranging sinks with different diameters, more components to be bonded with different sizes can be adapted, thereby improving the adaptability of the coaxial bonding device.

[0083] Of course, in the embodiment of the present application, the limiting portion 31 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the limiting portion 31 can also be a rectangular groove, an elliptical groove, etc., and the limiting portion 31 can also include a fourth sinking platform, a fifth sinking platform, etc.

[0084] In one example, along the radial direction of the second positioning portion 3 , the size of the first sinker 311 is the same as the size of the first limiting hole 1111 , the size of the second sinker 312 is the same as the size of the second limiting hole 1211 , and the size of the third sinker 313 is the same as the size of the third limiting hole 1221 .

[0085] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the first positioning portion 1, the adjustment assembly 2 and the second positioning portion 3 are connected to form a columnar structure with an accommodating cavity inside.

[0086] Along the radial direction of the second positioning portion 3, that is, along the radial direction of the coaxial bonding device.

[0087] The size of the first sinker 311 is the same as that of the first limiting hole 1111 , the size of the second sinker 312 is the same as that of the second limiting hole 1211 , and the size of the third sinker 313 is the same as that of the third limiting hole 1221 .

[0088] That is to say, the first sinker 311 is arranged corresponding to the position of the first limiting hole 1111, and the size of the first sinker 311 is the same as the size of the first limiting hole 1111. The first limiting hole 1111 and the first sinker 311 can limit two parts to be bonded of the same size for bonding.

[0089] The second sinker 312 is arranged corresponding to the position of the second limiting hole 1211, and the size of the second sinker 312 is the same as the size of the second limiting hole 1211. The second limiting hole 1211 and the second sinker 312 can limit two parts to be bonded of the same size for bonding.

[0090] The third sinker 313 is arranged corresponding to the position of the third limiting hole 1221, and the size of the third sinker 313 is the same as the size of the third limiting hole 1221. The third limiting hole 1221 and the third sinker 313 can limit two parts to be bonded of the same size for bonding.

[0091] Of course, in the embodiment of the present application, the sinker and the stopper 12 are not limited to the above structure, and those skilled in the art can set them according to actual needs. For example, when parts to be bonded with different diameters need to be bonded, a sinker of a size corresponding to the diameter of one of the parts to be bonded can be selected, and then a stopper 12 corresponding to the diameter of the other part to be bonded can be selected, so that the positions of the two parts to be bonded are limited by the stopper 12 and the second positioning portion 3, so that the two parts to be bonded are bonded and fixed.

[0092] In one example, the adjustment component 2 has a first end 21, which is connected to the first positioning member 11. The first end 21 has a first recessed portion 211. A first protruding portion 112 is provided on one side of the first positioning member 11 close to the first end 21. The first protruding portion 112 is engaged and connected with the first recessed portion 211.

[0093] like Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8 As shown, the adjusting component 2 is a hollow cylinder. The top of the adjusting component 2 is a first end 21. The first end 21 of the adjusting component 2 is connected to the first positioning member 11, that is, the top of the adjusting component 2 is connected to the first positioning member 11.

[0094] like Figure 4 As shown, the top of the adjustment component 2 is provided with a first recessed portion 211, and the first recessed portion 211 is an outer circular step ring. The end surface of the first positioning member 11 connected to the first end 21 is provided with an inner circular step ring. The inner circular step ring on the lower surface of the first positioning member 11 is fitted with the outer circular step ring on the upper surface of the adjustment component 2. The first recessed portion 211 is fitted with the first protruding portion 112, so that the adjustment component 2 and the first positioning member 11 are coaxially positioned, thereby fixing the position of the component to be bonded in the coaxial bonding device.

[0095] In one example, the adjustment component 2 has a second end 22, which is arranged opposite to the first end 21, and is connected to the second positioning portion 3. The second end 22 has a second protrusion 221, and a second recessed portion 32 is provided on one side of the second positioning member close to the second end 22, and the second recessed portion 32 is engaged and connected with the second protrusion 221.

[0096] like Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8 As shown, the adjusting component 2 is a hollow cylinder. The bottom of the adjusting component 2 is the second end 22. The second end 22 of the adjusting component 2 is connected to the second positioning member, that is, the bottom of the adjusting component 2 is connected to the second positioning member.

[0097] like Figure 1 , Figure 4 and Figure 8As shown, the bottom of the adjustment component 2 is provided with a second protrusion 221, and the second protrusion 221 is an outer circular step ring. The end surface of the second positioning member connected to the second end 22 is provided with an inner circular step ring. The inner circular step ring on the lower surface of the second positioning member is sleeved with the outer circular step ring on the upper surface of the adjustment component 2. The second protrusion 221 is sleeved with the second recessed portion 32, so that the adjustment component 2 and the second positioning member are coaxially positioned, thereby fixing the position of the component to be bonded in the coaxial bonding device.

[0098] The coaxial bonding device includes a plurality of adjustment components 2 , and the plurality of adjustment components 2 are connected along the axial direction of the second positioning portion 3 .

[0099] like Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8 As shown, the adjustment component 2 is a hollow cylinder. The top of the adjustment component 2 is set as an inner circular step ring, and the bottom of the adjustment component 2 is set as an outer circular step ring. Multiple adjustment components 2 can be fitted up and down to adjust the height of the accommodating cavity, thereby adjusting the height of the coaxial bonding device.

[0100] Of course, in the embodiment of the present application, the adjustment component 2 is not limited to the above structure, and those skilled in the art can configure it according to actual needs. For example, the adjustment component 2 can also achieve height adjustment through interference fit, threaded connection, etc.

[0101] In one example, the sizes of the second recessed portion 32 , the first recessed portion 311 , the second recessed portion 312 , and the third recessed portion 313 of the second positioning portion 3 gradually decrease from the second recessed portion 32 to the third recessed portion 313 .

[0102] like Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8 As shown, the upper surface of the second positioning portion 3 is provided with a second recessed portion 32, a first sinking platform 311, a second sinking platform 312, and a third sinking platform 313. The diameters of the second recessed portion 32, the first sinking platform 311, the second sinking platform 312, and the third sinking platform 313 are from large to small.

[0103] The upper surface of the second positioning portion 3 has a third sinker 313, a second sinker 312, a first sinker 311, and a second recessed portion 32, and the corresponding sinker diameters are d1, d2, d3 and d4, wherein d1=56mm, d2=118mm, d3=206mm, d4 is greater than d3 to ensure that the inner circular step ring of the lower end face of the height adjustment component 2 can be placed on the sinker surface; the radial thickness of the upper end face disk edge of the second positioning portion 3 is Δr, Δr>0mm, and the total diameter of the second positioning portion 3 is D=d4+2×Δr, D>d4>d3.

[0104] The distances from the third sinking platform 313, the second sinking platform 312, the first sinking platform 311, the second recessed portion 32 to the bottom surface of the second positioning portion 3 are h1, h2, h3, and h4, respectively, where h1≥0 mm, h i ≥h i-1 +1mm (i=2,3,4), the height of the second recessed portion 32 is Δh, Δh≥1mm, and the total height of the second positioning portion 3 is H1=h4+Δh, H1≥4mm.

[0105] The outer diameter of the first recessed portion 211 of the height adjustment component 2 is equal to d4, the inner diameter d5 is equal to the inner diameter of the ring, d4>d5>206mm, and the height of the first recessed portion 211 is equal to Δh; the outer diameter of the second protruding portion 221 is equal to D, the inner diameter is equal to d4, and the height of the second protruding portion 221 is equal to Δh; the height ΔH of a single annular structure is the distance from the uppermost edge of the second protruding portion 221 on its upper end surface to the lower end surface. For multiple annular structures constituting the height adjustment component, the value of ΔH may be the same or different, and ΔH≥0mm; for a height adjustment component consisting of N annular structures, the height of each annular structure is ΔH i , i = 1, 2, ..., N, N is the number of ring structures, and the total height H2 of the height adjustment assembly is

[0106]

[0107] The outer diameter of the first protrusion 112 of the first positioning portion 1 is equal to D, the outer diameter of the second recessed portion 32 of the first positioning portion 1 is equal to d4, the inner diameter is equal to d5, and the height is equal to Δh; the thickness of the limiting member 12 is h p , usually h p≥1mm, the distance from the lower surface of the limiter 12 to the lower end surface of the first positioning portion 1 is h5, the distance from the upper surface of the limiter 12 to the upper end surface of the first positioning portion 1 is h6, h5 and h6 can be the same or different, h5, h6 ≥ 0mm; the four evenly distributed fan-shaped grooves on the upper surface of the fixed support portion 111 of the limiter 12 are interlocked with the first limiting protrusion 1213 on the edge of the first limiter 121, and the upper and lower surfaces of the limiter 12 are each provided with four evenly distributed fan-shaped grooves, and the fan-shaped grooves on the two surfaces are arranged alternately along the central circular hole, and the limiter 12 can be flipped for use; the thickness of the fan-shaped protrusion on the edge of the first limiter 121 of the limiter 12 is h s1 ,h s1 <h p The center of the sector usually coincides with the center of the main disc of the first limiting member 121. The center angle of the first limiting protrusion 1213 is α1, α1≤45°, and the radius of the sector is r s1 , 206mm<2×r s1 <d5; the four evenly distributed fan-shaped grooves on the edge of the central circular hole of the first limiting protrusion 1213 are engaged with the second limiting protrusion 1222 on the edge of the second limiting member 122; the thickness of the second limiting protrusion 1222 on the edge of the second limiting member 122 is h s2 ,h s2 <h p The center of the sector usually coincides with the center of the main disc of the second limiting protrusion 1222. The center angle of the second limiting protrusion 1222 is α2, α2≤45°, and the radius of the sector is r s2 , 118mm<2×r s2 <206mm.

[0108] The basic principle of this application is to achieve indirect positioning of the bonding surface by spatially positioning the non-bonding parts of the bonding parts, that is, to achieve coaxial positioning of the bonding surface by positioning the two cylindrical surfaces of the two bonding parts. The coaxiality of the bonding surface is ensured by the cylindricality of the two bonding parts.

[0109] The bottom part to be bonded is positioned by the corresponding limiting part 31 on the second positioning part 3; the top part to be bonded is positioned by the central circular hole of the corresponding diameter on the first positioning part 1. In addition, to ensure that the lower surface of the limiting member 12 on the first positioning part 1 is higher than the bonding surface, the height adjustment component 2 is used to adjust the spatial height of the lower surface of the limiting member 12 according to the height of the bottom part to be bonded.

[0110] For the acoustic tube test specimens to be bonded with diameters of 56 mm, 118 mm, and 206 mm (numbered j=1, 2, and 3 from large to small), the thickness of the bottom and top parts to be bonded are H D and H UThe total height H between the lower surface of the spoke plate of the first positioning part 1 of the coaxial bonding tool of the present application and the bottom surface of the tool t =H1+H2+h5, in order to ensure the normal operation of the coaxial bonding tooling of this application, it is necessary to meet

[0111] h j +H D <H t =H1+H2+h5<h j +H D +H U ,j=1,2,3 (2)

[0112] h j (j=1, 2, 3) is the distance from the surface of the limiting portion 31 on the second positioning portion 3 of the coaxial bonding tool of the present application corresponding to the diameter of the acoustic tube test sample to be bonded to the bottom surface of the coaxial bonding tool.

[0113] Theoretically, for different H D , as long as H U >0mm, by adjusting H2, the formula (2) can be satisfied, thereby ensuring the normal operation of the coaxial bonding tooling of the present application. The present application further provides a method of using a discrete annular structure to realize a height adjustment component to adapt to the continuous change of H D Method:

[0114] When max{H1+h5-h j -H U ,0}<H D j ,j=1,2,3, the height adjustment component is not used, that is, H2=0, so for a given H U , H1, H5 and H j The value of determines the minimum H applicable to this tooling D The value of

[0115] When H D ≥H1+h5-h j When j = 1, 2, or 3, a height adjustment component needs to be introduced. The height of each ring structure in the height adjustment component is ΔH. i ≤H U , i = 1, 2, ..., N, the number of ring structures N is based on H D The value of is determined.

[0116] Based on this method, a combination of a limited number of annular structures can be used to achieve height adjustment. The assembly is suitable for the bottom part to be bonded with a thickness of H. D Continuous change within a certain range.

[0117] ​Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A coaxial bonding device, characterized in that: The invention comprises a first positioning portion (1), an adjusting component (2) and a second positioning portion (3), wherein the first positioning portion (1), the adjusting component (2) and the second positioning portion (3) are connected in sequence, the first positioning portion (1) and the second positioning portion (3) are arranged on opposite sides of the adjusting component (2), and a receiving cavity is formed inside the first positioning portion (1), the adjusting component (2) and the second positioning portion (3); The first positioning portion (1) comprises a first positioning member (11) and a limiting member (12); the first positioning member (11) is arranged at an end of the adjusting component (2) away from the second positioning member (3); the limiting member (12) is arranged at a side of the first positioning member (11) away from the adjusting component (2); the limiting member (12) is detachably connected to the first positioning member (11); and the limiting member (12) corresponds to the position of the accommodating cavity; A limiting portion (31) is provided on one side of the second positioning portion (3) close to the adjustment assembly (2), and the limiting portion (31) cooperates with the limiting member (12).

2. The coaxial bonding device according to claim 1, characterized in that: A support portion (111) is arranged inside the first positioning member (11), the support portion (111) has a first limiting hole (1111), a first limiting groove (1112) is arranged at an edge of the support portion (111) close to the first limiting hole (1111), and the limiting member (12) is connected to the first limiting groove (1112).

3. The coaxial bonding device according to claim 2, characterized in that: The limiting member (12) comprises a first limiting member (121) and a second limiting member (122), and the size of the first limiting member (121) is greater than the size of the second limiting member (122).

4. The coaxial bonding device according to claim 3, characterized in that: The first limiting member (121) has a second limiting hole (1211), a second limiting groove (1212) is arranged at an edge of the first limiting member (121) close to the second limiting hole (1211), a first limiting protrusion (1213) is arranged on a side of the first limiting member (121) facing away from the second limiting hole (1211), and the first limiting protrusion (1213) is connected to the first limiting groove (1112).

5. The coaxial bonding device according to claim 4, characterized in that: The second limiting member (122) has a third limiting hole (1221), and a second limiting protrusion (1222) is provided on a side of the second limiting member (122) away from the third limiting hole (1221), and the second limiting protrusion (1222) is connected to the second limiting groove (1212).

6. The coaxial bonding device according to claim 5, characterized in that: The support portion (111) has a plurality of first limiting grooves (1112), the first limiting member (121) has a plurality of first limiting protrusions (1213), and the number of the first limiting grooves (1112) is the same as the number of the first limiting protrusions (1213); The first limiting member (121) has a plurality of the second limiting grooves (1212), the second limiting member (122) has a plurality of the second limiting protrusions (1222), and the number of the second limiting grooves (1212) is the same as the number of the second limiting protrusions (1222).

7. The coaxial bonding device according to claim 5, characterized in that: The limiting portion (31) includes a first sinker (311), a second sinker (312) and a third sinker (313), wherein the first sinker (311) corresponds to the position of the first limiting hole (1111), the second sinker (312) corresponds to the position of the second limiting hole (1211), and the third sinker (313) corresponds to the position of the third limiting hole (1221).

8. The coaxial bonding device according to claim 7, characterized in that: Along the radial direction of the second positioning portion (3), the size of the first sinker (311) is the same as the size of the first limiting hole (1111), the size of the second sinker (312) is the same as the size of the second limiting hole (1211), and the size of the third sinker (313) is the same as the size of the third limiting hole (1221).

9. The coaxial bonding device according to claim 1, characterized in that: The adjustment component (2) has a first end (21), the first end (21) is connected to the first positioning member (11), the first end (21) has a first recessed portion (211), a first protruding portion (112) is provided on one side of the first positioning member (11) close to the first end (21), and the first protruding portion (112) is engaged with the first recessed portion (211).

10. The coaxial bonding device according to claim 9, characterized in that: The adjustment component (2) has a second end (22), the second end (22) is arranged opposite to the first end (21), the second end (22) is connected to the second positioning portion (3), the second end (22) has a second protruding portion (221), a second recessed portion (32) is provided on one side of the second positioning portion (3) close to the second end (22), and the second recessed portion (32) is engaged with the second protruding portion (221).

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