A gluing device and a gluing method

Abstract

The application discloses a gluing device and a gluing method, and belongs to the technical field of shaft head gluing. The gluing device comprises a main gluing part, an adjusting gluing part and a connecting assembly. The main gluing part is provided with a gluing cavity, is used for sleeving the outer periphery of a shaft head, and is provided with a first glue outlet channel. The adjusting gluing part is respectively detachably arranged at the two ends of the main gluing part, is provided with an adjusting gluing cavity, and is provided with a second glue outlet channel. The connecting assembly is used for connecting the main gluing part and the adjusting gluing part. The adjusting gluing part is connected with the main gluing part, and the gluing cavity and the adjusting gluing cavity jointly form a glue layer forming space for accommodating the shaft head. The application provides a gluing device and a gluing method, so as to solve the technical problems that the glue layer forming space of the gluing tooling is fixed, it is difficult to adapt to shaft heads with different sizes and different connection regions, and the thickness of the glue layer is difficult to adjust in the existing shaft head gluing process.

Description

Technical Field

[0001] This application belongs to the field of shaft head adhesive application technology, specifically relating to an adhesive application device and adhesive application method. Background Technology

[0002] Currently, in the manufacturing process of structural components such as carbon fiber composite shafts and composite material tubing, it is usually necessary to connect the shaft head to the shaft body. The shaft head and shaft body are generally fixed together using adhesive. During assembly, adhesive needs to be applied to the outer circumference of the shaft head or the connection area of ​​the shaft body before inserting the shaft head into the shaft body. The adhesive then cures to form a bonding layer, achieving a reliable connection between the shaft head and the shaft body.

[0003] In existing technologies, applying adhesive to shaft ends typically involves manual application or the use of fixed-structure adhesive application fixtures. When applying adhesive manually, operators need to control the amount and application location of the adhesive based on experience, which can easily lead to differences in adhesive layer thickness between different shaft ends. This results in uneven stress distribution after the shaft end and shaft body are connected, affecting connection stability. When using fixed-structure adhesive application fixtures, because the fixture's structural dimensions are fixed to define the adhesive layer forming space, it can only accommodate shaft ends of specific sizes and specific connection areas. When the shaft end size, insertion depth, or the fit clearance between the shaft end and shaft body changes, a different adhesive application fixture of the corresponding specification must be used, resulting in a limited applicability of existing adhesive application fixtures. Furthermore, existing adhesive application fixtures can only form adhesive layers of uniform thickness and fixed dimensions. They cannot adjust the adhesive layer thickness in different areas based on the connection structure between the shaft head and the shaft body, the fit clearance, and the migration of adhesive during assembly. This makes it difficult to meet the connection requirements of different shaft heads and the requirements for connection reliability. During the assembly of the shaft head and the shaft body, the insertion of the shaft head into the shaft body will squeeze the adhesive in the connection area, causing the adhesive to migrate along the insertion direction of the shaft head, resulting in changes in the thickness of the pre-formed adhesive layer. For example, the adhesive near the insertion end of the shaft head is easily squeezed and flows to other areas, causing localized thinning of the adhesive layer or adhesive overflow, while areas farther from the insertion end may experience insufficient adhesive filling, thereby reducing the effective bonding area between the shaft head and the shaft body and affecting the connection strength. Summary of the Invention

[0004] This application provides a glue application device and a glue application method to solve the technical problems in the existing shaft head glue application process, where the glue layer forming space of the glue application fixture is fixed, making it difficult to adapt to shaft heads of different sizes and different connection areas, and the glue layer thickness is difficult to adjust.

[0005] The primary objective of this application is to provide an adhesive application device, the technical solution of which is as follows: The adhesive application device includes: a main adhesive application component, which has an adhesive application cavity and is used to fit around the outer periphery of the shaft head; the main adhesive application component has multiple first adhesive outlet channels communicating with the adhesive application cavity; an adjusting adhesive application component, which is detachably disposed at both ends of the main adhesive application component; the adjusting adhesive application component has an adjusting adhesive application cavity communicating with the adhesive application cavity; and the adjusting adhesive application component has multiple second adhesive outlet channels communicating with the adjusting adhesive application cavity; and a connecting assembly, which is used to connect the main adhesive application component and the adjusting adhesive application component, and is disposed around the outer periphery of the adhesive application cavity and the adjusting adhesive application cavity; wherein, the adjusting adhesive application component is connected to the main adhesive application component, and the adhesive application cavity and the adjusting adhesive application cavity together form an adhesive layer forming space for accommodating the shaft head.

[0006] The adhesive applicator in this application also includes the following additional technical features: The connecting components include a mounting component and a positioning component connected to the mounting component. The main adhesive application component and the adjusting adhesive application component are both provided with mounting grooves that cooperate with the mounting component. The main adhesive application component and the adjusting adhesive application component are also provided with positioning grooves that cooperate with the positioning component. The positioning grooves are connected to the mounting grooves, and the positioning component extends toward the adhesive layer forming space.

[0007] A heating element is provided at the end of the positioning component facing the adhesive layer forming space. The heating element is used to heat the connection area between the main adhesive coating component and the adjusting adhesive coating component.

[0008] The mounting component has a fixing cavity, and a power supply assembly is installed inside the fixing cavity. The power supply assembly is electrically connected to the heating element.

[0009] An elastic seal is provided in the positioning groove. The elastic seal is located on the side of the heating element facing the adhesive layer forming space. The elastic seal is used to seal the connection position between the main adhesive coating part and the adjusting adhesive coating part.

[0010] The positioning groove has a receiving groove on the side near the adhesive layer forming space. An elastic heat-conducting component is provided in the receiving groove. The elastic heat-conducting component is located between the heating component and the adhesive layer forming space and abuts against the main adhesive coating component and the adjusting adhesive coating component.

[0011] The connecting assembly is equipped with a locking element, and the adjusting adhesive applicator and the main adhesive applicator are equipped with locking elements that cooperate with the locking element. The locking element is used to lock the adjusting adhesive applicator to the main adhesive applicator.

[0012] The glue application device also includes a glue supply mechanism. The main glue application component is provided with a flow distribution cavity that communicates with the glue supply mechanism. The flow distribution cavity is connected to multiple first glue outlet channels.

[0013] The adjusting adhesive applicator is equipped with a flow guide cavity and an adhesive guide interface that communicates with the flow guide cavity. The adhesive supply mechanism is equipped with an adhesive guide connector that mates with the adhesive guide interface. The flow guide cavity is connected to multiple second adhesive outlet channels.

[0014] A second objective of this application is to provide a glue-applying method, applied to the glue-applying apparatus described in the first objective, the glue-applying method comprising: Obtain the connection parameters of the shaft head, including the size parameters of the shaft head, the connection area parameters, and the mating clearance parameters; The target adhesive layer parameters corresponding to the shaft head are determined based on the connection parameters. The target adhesive layer parameters include adhesive layer thickness, adhesive layer forming area, and adhesive layer thickness distribution. The main adhesive coating component and the adjusting adhesive coating component are matched according to the target adhesive layer parameters, and together they form an adhesive layer forming space corresponding to the target adhesive layer parameters.

[0015] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows: 1. This application, by setting up a main adhesive applicator and adjustable adhesive applicators detachably connected to both ends of the main adhesive applicator, connects the adhesive applicator's cavity and the adjustable adhesive applicator's cavity to form a space for accommodating the shaft head and forming an adhesive layer forming space. During the adhesive application process, the adhesive enters the adhesive applicator cavity through a first outlet channel and the adjustable adhesive applicator cavity through a second outlet channel, allowing the main adhesive applicator and the adjustable adhesive applicator to simultaneously apply adhesive to the outer circumference of the shaft head. Since the main adhesive applicator and the adjustable adhesive applicator can be combined along the length of the shaft head, the length of the adhesive layer forming space can be extended, making the adhesive applicator suitable for shaft heads with longer connection areas and improving the adaptability of the adhesive applicator to shaft heads of different lengths. Because the adjusting adhesive applicator is detachable, when the shaft head size, connection area length, or connection requirements change, different types of adjusting adhesive applicators can be selected and combined with the main adhesive applicator without replacing the entire adhesive applicator. Different types of adjusting adhesive applicators can form adjusting adhesive cavities of different sizes. Therefore, when combined with the main adhesive applicator, adhesive layer forming spaces of different sizes can be formed to adapt to the adhesive application needs of different shaft heads and different connection areas, thereby improving the versatility and applicability of the adhesive applicator. When the adjusting adhesive cavity and the main adhesive cavity have the same inner diameter, the same radial gap is formed between the outer periphery of the shaft head and the adhesive layer forming space, resulting in an adhesive layer of uniform thickness in the corresponding area. When the inner diameters of the adjusting adhesive cavity and the main adhesive cavity differ, different forming gaps are formed between the outer periphery of the shaft head and the cavity walls of different diameters, resulting in different forming thicknesses of the adhesive in different areas, thus forming an adhesive layer with different thickness distributions on the outer periphery of the shaft head. Therefore, the adhesive layer thickness distribution can be pre-designed according to the connection requirements of different positions of the shaft head and shaft body, not only forming a uniform adhesive layer but also improving the adjustability of adhesive layer forming. Because the adhesive layer thickness in different areas can be pre-adjusted, the flow trend of the adhesive during shaft assembly can be considered. More adhesive can be reserved in areas prone to migration, while the thickness can be controlled in areas with less migration. This ensures that when the shaft is inserted into the shaft body, the adhesive redistribution still meets the adhesive requirements of each connection area, reducing the risk of localized adhesive shortages or overflows and improving the bonding reliability of the shaft head and shaft body. Furthermore, when applying adhesive to specific areas of the shaft head, either the adjusting adhesive applicator or the main adhesive applicator can be used alone to apply adhesive to those areas. Alternatively, the adjusting and main adhesive applicators can be used in combination to continuously apply adhesive to the outer circumference of the shaft head. Therefore, the same adhesive applicator can be used in combination with either the adjusting or main adhesive applicator depending on the shaft head structure and adhesive requirements, increasing the flexibility of the adhesive applicator.Finally, by setting the connecting components around the outer periphery of the main adhesive applicator and the adjusting adhesive applicator, the main adhesive applicator and the adjusting adhesive applicator maintain a stable relative position after being connected, avoiding relative displacement during the adhesive supply process, and ensuring that the adhesive applicator cavity and the adjusting adhesive applicator cavity form a continuous and stable adhesive layer forming space, thereby further improving the consistency of adhesive layer forming and the adhesive application accuracy. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a front view of the adhesive application apparatus according to a preferred embodiment of this application; Figure 2 This is a top view of a preferred embodiment of the adhesive application apparatus according to this application; Figure 3 This is an assembly diagram of the main adhesive coating component and the adjusting adhesive coating component according to a preferred embodiment of this application; Figure 4 for Figure 3 Enlarged view of part A in the middle; Figure 5 This is a flowchart illustrating a preferred embodiment of the adhesive application method according to this application.

[0017] List of components and reference numerals: 1. Main unit; 11. Adhesive supply mechanism; 111. Adhesive guide connector; 12. Clamping mechanism; 2. Main adhesive coating component; 21. Adhesive coating cavity; 22. First adhesive outlet channel; 23. Diversion cavity; 3. Adjust the glue application component; 31. Adjust the glue application chamber; 32. Second glue outlet channel; 33. Guide cavity; 34. Glue guide interface; 4. Connecting components; 41. Mounting components; 411. Fixing cavity; 412. Power supply components; 42. Positioning components; 43. Heating components; 44. Locking components; 5. Mounting slot; 6. Positioning groove; 7. Receiving groove; 71. Elastic heat-conducting component; 8. Locking components. Detailed Implementation

[0018] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0020] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "adhesion," and "fixation," etc., should be interpreted broadly. For example, they can refer to fixed adhesion, detachable adhesion, or integral bonding; they can refer to mechanical adhesion, electrical adhesion, or communication; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction 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.

[0022] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0023] like Figure 1 , Figure 2 , Figure 3As shown, this application discloses an adhesive application device, including: a main adhesive application component 2, an adjusting adhesive application component 3, and a connecting assembly 4. The main adhesive application component 2 is provided with an adhesive application cavity 21 and is used to be sleeved on the outer periphery of the shaft head. The main adhesive application component 2 is provided with a plurality of first adhesive outlet channels 22 communicating with the adhesive application cavity 21. The adjusting adhesive application component 3 is detachably disposed at both ends of the main adhesive application component 2. The adjusting adhesive application component 3 is provided with an adjusting adhesive application cavity 31 communicating with the adhesive application cavity 21 and a plurality of second adhesive outlet channels 32 communicating with the adjusting adhesive application cavity 31. The connecting assembly 4 is used to connect the main adhesive application component 2 and the adjusting adhesive application component 3. The connecting assembly 4 is disposed around the outer periphery of the adhesive application cavity 21 and the adjusting adhesive application cavity 31. The adjusting adhesive application component 3 is connected to the main adhesive application component 2, and the adhesive application cavity 21 and the adjusting adhesive application cavity 31 together form an adhesive layer forming space for accommodating the shaft head.

[0024] This application incorporates a main adhesive applicator 2 and adjustable adhesive applicators 3 detachably connected to both ends of the main adhesive applicator 2. This allows the adhesive application cavity 21 of the main adhesive applicator 2 and the adjustable adhesive application cavity 31 of the adjustable adhesive applicator 3 to communicate with each other, forming a space for accommodating the shaft head and forming an adhesive layer. During the adhesive application process, the adhesive enters the adhesive application cavity 21 through the first adhesive outlet channel 22 and the adjustable adhesive application cavity 31 through the second adhesive outlet channel 32, enabling the main adhesive applicator 2 and the adjustable adhesive applicator 3 to simultaneously apply adhesive to the outer circumference of the shaft head. Because the main adhesive applicator 2 and the adjustable adhesive applicator 3 can be combined along the length of the shaft head, the length of the adhesive layer forming space can be extended, making the adhesive applicator suitable for shaft heads with longer connection areas and improving its adaptability to shaft heads of different lengths. Because the adjusting adhesive applicator 3 is detachable, when the shaft head size, connection area length, or connection requirements change, different types of adjusting adhesive applicators 3 can be selected to combine with the main adhesive applicator 2 without replacing the entire adhesive applicator. Different types of adjusting adhesive applicators 3 can form adjusting adhesive cavities 31 of different sizes. Therefore, after being combined with the main adhesive applicator 2, adhesive layer forming spaces of different sizes can be formed to adapt to the adhesive application needs of different specifications of shaft heads and different connection areas, thereby improving the versatility and applicability of the adhesive applicator. When the adjusting adhesive cavity 31 and the adhesive cavity 21 have the same inner diameter, the same radial gap is formed between the outer periphery of the shaft head and the adhesive layer forming space, so that the corresponding area forms an adhesive layer of uniform thickness. When the inner diameters of the adjusting adhesive cavity 31 and the adhesive cavity 21 are different, different forming gaps are formed between the outer periphery of the shaft head and the cavity walls of different diameters, so that the adhesive has different forming thicknesses in different areas, thus forming an adhesive layer with different thickness distributions on the outer periphery of the shaft head. Therefore, the adhesive layer thickness distribution can be pre-designed according to the connection requirements of different positions on the shaft head and shaft body, not only forming a uniform adhesive layer but also improving the adjustability of adhesive layer forming. Since the adhesive layer thickness in different areas can be pre-adjusted, the flow trend of the adhesive during shaft head assembly can be considered. More adhesive can be reserved in areas prone to adhesive migration, while the adhesive layer thickness can be controlled in areas with less migration. This ensures that when the adhesive is redistributed after the shaft head is inserted into the shaft body, it still meets the adhesive layer requirements of each connection area, thereby reducing the risk of localized adhesive shortages or overflow and improving the bonding reliability after the shaft head and shaft body are connected. Furthermore, when applying adhesive to a localized area of ​​the shaft head, the adjusting adhesive applicator 3 or the main adhesive applicator 2 can be used alone to apply adhesive to that specific area. Alternatively, the adjusting adhesive applicator 3 and the main adhesive applicator 2 can be used in combination to continuously apply adhesive to the outer circumference of the shaft head. Therefore, the same adhesive applicator can be used by selecting the adjusting adhesive applicator 3 and the main adhesive applicator 2 according to different shaft head structures and different adhesive application requirements, improving the flexibility of the adhesive applicator.Finally, by setting the connecting component 4 around the outer periphery of the main adhesive coating component 2 and the adjusting adhesive coating component 3, the main adhesive coating component 2 and the adjusting adhesive coating component 3 are connected to maintain a stable relative position, avoiding relative displacement during the glue supply process, and ensuring that the adhesive coating cavity 21 and the adjusting adhesive coating cavity 31 form a continuous and stable adhesive layer forming space, thereby further improving the consistency of adhesive layer forming and the adhesive coating accuracy.

[0025] Those skilled in the art will understand that both the first dispensing channel 22 and the second dispensing channel 32 employ an intermittent dispensing method to achieve dispensing.

[0026] As a preferred embodiment of this application: (e.g.) Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the connecting component 4 includes a mounting component 41 and a positioning component 42 connected to the mounting component 41. The main adhesive application component 2 and the adjusting adhesive application component 3 are both provided with mounting grooves 5 that cooperate with the mounting component 41. The main adhesive application component 2 and the adjusting adhesive application component 3 are also provided with positioning grooves 6 that cooperate with the positioning component 42. The positioning grooves 6 are connected to the mounting grooves 5, and the positioning component 42 extends toward the adhesive layer forming space.

[0027] This application provides an installation component 41 and a positioning component 42 connected to the installation component 41. Installation grooves 5 that mate with the installation component 41 and positioning grooves 6 that mate with the positioning component 42 are respectively provided on the main adhesive application component 2 and the adjusting adhesive application component 3. This allows the positioning component 42 to limit the position of the main adhesive application component 2 and the adjusting adhesive application component 3 during connection, improving the installation accuracy between them. Since the positioning component 42 extends towards the adhesive layer forming space, it can position the area near the adhesive layer forming space, thereby improving the alignment accuracy between the adhesive application cavity 21 and the adjusting adhesive application cavity 31. This ensures that the adhesive layer forming space formed by the two maintains a preset shape and size, thus guaranteeing the consistency of the adhesive layer thickness on the outer periphery of the shaft head.

[0028] As a preferred embodiment of the implementation method, such as Figure 3 , Figure 4 As shown, a heating element 43 is provided at one end of the positioning element 42 facing the adhesive layer forming space. The heating element 43 is used to heat the connection area between the main adhesive coating element 2 and the adjusting adhesive coating element 3.

[0029] This application provides a heating element 43 at one end of the positioning element 42 facing the adhesive layer forming space, bringing the heating element 43 close to the connection area between the main adhesive coating element 2 and the adjusting adhesive coating element 3, thereby heating the connection area. Because the heating element 43 improves the fluidity of the adhesive in the connection area, the adhesive layers formed by the main adhesive coating element 2 and the adjusting adhesive coating element 3 can fuse more smoothly at the connection point, reducing the problem of discontinuity or gaps between the two adhesive layers due to insufficient adhesive fluidity, thus improving the continuity and integrity of the adhesive layer on the outer periphery of the shaft head. Simultaneously, when the adjusting adhesive coating element 3 needs to be replaced, heating the connection area reduces the adhesion of the adhesive at the connection point, decreasing the resistance when separating the main adhesive coating element 2 and the adjusting adhesive coating element 3, facilitating the disassembly and replacement of the adjusting adhesive coating element 3.

[0030] Furthermore, such as Figure 3 , Figure 4 As shown, the mounting component 41 has a fixing cavity 411, and a power supply component 412 is disposed within the fixing cavity 411. The power supply component 412 is electrically connected to the heating element 43. The mounting component 41 has a charging port connected to the power supply component 412. By setting a fixing cavity 411 within the mounting component 41 and placing the power supply component 412 within the fixing cavity 411, this application enables the power supply component 412 to form an integrated structure with the mounting component 41, reducing the need for external power supply lines and improving the overall compactness of the adhesive coating device. Simultaneously, by providing a charging port connected to the power supply component 412, the power supply component 412 can be repeatedly charged, thereby continuously providing power to the heating element 43. This facilitates the heating element 43 in heating the connection area between the main adhesive coating component 2 and the adjusting adhesive coating component 3, improving the ease of use of the adhesive coating device.

[0031] Preferably, the positioning member 42 is provided with a communicating cavity, and a conductive connector is provided in the communicating cavity. The power supply assembly 412 is connected to the heating member 43 through the conductive connector.

[0032] In Example 1, the sealing arrangement between the main adhesive coating component 2 and the adjusting adhesive coating component 3 can be any of the following specific examples: Specific example 1: The positioning groove 6 is provided with an elastic seal. The elastic seal is located on the side of the heating element 43 facing the adhesive layer forming space. The elastic seal is used to seal the connection position between the main adhesive coating element 2 and the adjusting adhesive coating element 3.

[0033] This application incorporates an elastic seal within the positioning groove 6, positioned on the side of the heating element 43 facing the adhesive layer forming space. This elastic seal reduces the amount of adhesive entering the connection between the main adhesive applicator 2 and the adjusting adhesive applicator 3, lowering the likelihood of adhesion after adhesive curing. Therefore, when the adjusting adhesive applicator 3 needs replacement, the separation resistance between the main adhesive applicator 2 and the adjusting adhesive applicator 3 is reduced, facilitating disassembly and improving the ease of replacement. By isolating the connection area with the elastic seal and working in conjunction with the heating element 43 to reduce adhesive adhesion in the connection area, the main adhesive applicator 2 and the adjusting adhesive applicator 3 maintain continuous adhesive layer forming during use, and also reduce connection resistance during disassembly.

[0034] Specific example 2: such as Figure 2 , Figure 3 , Figure 4 As shown, the positioning groove 6 has a receiving groove 7 on the side near the adhesive layer forming space. An elastic heat-conducting element 71 is provided inside the receiving groove 7. The elastic heat-conducting element 71 is positioned between the heating element 43 and the adhesive layer forming space, and abuts against the main adhesive applicator 2 and the adjusting adhesive applicator 3. The elastic heat-conducting element 71 is used to conduct heat from the heating element 43 to the adhesive layer forming space.

[0035] As a preferred embodiment of this application, such as Figure 1 , Figure 3 , Figure 4 As shown, the connecting component 4 is provided with a locking member 44, and the adjusting adhesive applicator 3 and the main adhesive applicator 2 are provided with a locking member 8 that cooperates with the locking member 44. The locking member 44 is used to lock the adjusting adhesive applicator 3 to the main adhesive applicator 2.

[0036] Furthermore, such as Figure 1 , Figure 3 , Figure 4 As shown, the connecting component 4 includes a mounting component 41 and a positioning component 42 connected to the mounting component 41. The main adhesive application component 2 and the adjusting adhesive application component 3 are both provided with mounting grooves 5 that cooperate with the mounting component 41. The main adhesive application component 2 and the adjusting adhesive application component 3 are also provided with positioning grooves 6 that cooperate with the positioning component 42. The positioning grooves 6 are connected to the mounting grooves 5, and the positioning component 42 extends toward the adhesive layer forming space.

[0037] Furthermore, such as Figure 3 , Figure 4 As shown, the mounting groove 5 is formed on the outer contour of the main adhesive coating part 2 and the adjusting adhesive coating part 3. The mounting part 41 is embedded in the mounting groove 5, and the outer surface of the mounting part 41 smoothly transitions with the outer surface of the main adhesive coating part 2 and the adjusting adhesive coating part 3, respectively.

[0038] like Figure 3As shown, the locking member 8 is a locking hole provided in the mounting groove 5. The mounting member 41 has a through hole corresponding to the locking hole. The locking member 44 passes through the through hole and can extend into the locking hole to lock the mounting member 41 to the main adhesive applicator 2 and the adjusting adhesive applicator 3. Multiple locking holes are provided along the circumference of the main adhesive applicator 2 and the adjusting adhesive applicator 3, and the locking member 44 is provided in a one-to-one correspondence with the locking hole.

[0039] Those skilled in the art will understand that in other embodiments, the connecting component 4 may also adopt a combination of locking connection and snap-fit ​​connection, wherein one end of the connecting component 4 is connected to the main adhesive coating component 2 through the locking member 44, and the other end is snap-fitted to the adjusting adhesive coating component 3.

[0040] In the second embodiment, the mounting groove can also be provided as follows: the mounting groove is formed in the main adhesive coating part and is located between the outer contour of the main adhesive coating part and the adhesive coating cavity; the mounting groove is also formed in the adjusting adhesive coating part and is located between the outer contour of the adjusting adhesive coating part and the adjusting adhesive coating cavity.

[0041] Furthermore, the outer contours of the main adhesive coating component and the adjusting adhesive coating component are provided with locking grooves, and the adhesive coating device is provided with locking components that cooperate with the locking grooves to restrict the relative separation of the main adhesive coating component and the adjusting adhesive coating component.

[0042] Furthermore, the locking member is provided with a first connecting hole, and the bottom of the locking groove is provided with a second connecting hole corresponding to the first connecting hole. The locking member is also provided with a fastener, which passes through the first connecting hole and connects with the second connecting hole to fix the locking member to the main adhesive coating member and the adjusting adhesive coating member.

[0043] Those skilled in the art will understand that, in other embodiments, the main adhesive applicator 2 and the adjusting adhesive applicator 3 can also be connected by magnetic attraction. For example, magnetic attraction components can be provided at the connection positions of the main adhesive applicator 2 and the adjusting adhesive applicator 3, so that the main adhesive applicator 2 and the adjusting adhesive applicator 3 can be kept connected by magnetic attraction.

[0044] As a preferred embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 As shown, the glue application device also includes a glue supply mechanism 11. The main glue application component 2 is provided with a diversion cavity 23 that communicates with the glue supply mechanism 11. The diversion cavity 23 is connected to a plurality of first glue outlet channels 22.

[0045] Furthermore, such as Figure 3 As shown, the adjusting adhesive applicator 3 is provided with a flow guiding cavity 33 and an adhesive guiding interface 34 communicating with the flow guiding cavity 33. The adhesive supply mechanism 11 is provided with an adhesive guiding connector 111 that cooperates with the adhesive guiding interface 34. The flow guiding cavity 33 is connected to multiple second adhesive outlet channels 32. The adhesive guiding connector 111 and the adhesive guiding interface 34 are detachably connected.

[0046] In other implementations, such as Figure 1 As shown, the adhesive application device also includes a main unit 1, and the main adhesive application component 2 is detachably mounted on the main unit 1 so that the corresponding specification of the main adhesive application component 2 can be replaced according to the adhesive application requirements of different shaft heads.

[0047] Furthermore, the adjusting adhesive application parts 3 can also be combined and connected to each other. Two or more adjusting adhesive application parts 3 are connected by a connecting component 4 so that multiple adjusting adhesive application parts 3 are arranged sequentially along the length direction of the shaft head and together form an adhesive layer forming space for accommodating the shaft head.

[0048] Furthermore, the adhesive applicator also includes a clamping mechanism 12, which is rotatably mounted on the main unit 1. The clamping mechanism 12 includes a chuck, which includes a chuck body and multiple jaws. The multiple jaws are spaced apart circumferentially along the chuck body and can move radially along the chuck body to clamp shafts of different sizes.

[0049] like Figure 5 As shown, this application also discloses an adhesive application method, applied to the adhesive application apparatus of this application. The adhesive application method includes: S1. Obtain the connection parameters of the shaft head, including the size parameters of the shaft head, the connection area parameters, and the mating clearance parameters. S2. Determine the target adhesive layer parameters corresponding to the shaft head based on the connection parameters. The target adhesive layer parameters include adhesive layer thickness, adhesive layer forming area, and adhesive layer thickness distribution. S3. Match the corresponding adjusting coating component according to the target adhesive layer parameters. The main coating component and the adjusting coating component together form an adhesive layer forming space corresponding to the target adhesive layer parameters.

[0050] Determining the target adhesive layer parameters corresponding to the shaft head based on the connection parameters includes: determining the required adhesive layer thickness after curing based on the fit clearance parameters between the shaft head and the shaft body; determining the forming area of ​​the adhesive layer along the axial direction of the shaft head based on the connection length of the shaft head inserted into the shaft body; and determining the adhesive layer thickness distribution corresponding to different axial positions based on the flow trend of the adhesive after being squeezed during the insertion of the shaft head into the shaft body.

[0051] For example, during the process of inserting the shaft head into the shaft body, the adhesive near the insertion end of the shaft head is easily migrated to the rear end along the insertion direction due to the squeezing force. Therefore, the area near the insertion end of the shaft head is set as the first adhesive layer area, and the area away from the insertion end of the shaft head is set as the second adhesive layer area.

[0052] Based on the analysis of adhesive migration, the target adhesive layer thickness corresponding to the first adhesive layer area and the target adhesive layer thickness corresponding to the second adhesive layer area are determined, so that after the shaft head is inserted into the shaft body, the adhesive is redistributed to form a nearly uniform bonding adhesive layer.

[0053] In this application, assembly experiments were conducted by selecting multiple shaft heads and shaft bodies with different connection parameters, including shaft head size parameters, connection area parameters, and fit clearance parameters.

[0054] Furthermore, the amount of adhesive migration obtained under different connection parameter conditions is correlated to establish a correspondence between connection parameters and adhesive migration amount.

[0055] During each group of experiments, the distribution changes of adhesive in the connection area before and after the shaft head was inserted into the shaft body were recorded. Based on the change in adhesive layer thickness in different areas before and after assembly, the amount of adhesive migration under the corresponding conditions was determined.

[0056] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0057] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0058] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A glue-applying device, characterized in that, include: The main adhesive coating component is provided with an adhesive coating cavity. The main adhesive coating component is used to be sleeved on the outer periphery of the shaft head. The main adhesive coating component is provided with a plurality of first adhesive outlet channels communicating with the adhesive coating cavity. An adjusting adhesive applicator is provided, which is detachably disposed at both ends of the main adhesive applicator. The adjusting adhesive applicator is provided with an adjusting adhesive cavity communicating with the adhesive cavity, and the adjusting adhesive applicator is provided with a plurality of second adhesive outlet channels communicating with the adjusting adhesive cavity. A connecting assembly for connecting the main adhesive applicator and the adjusting adhesive applicator, the connecting assembly being disposed around the outer periphery of the adhesive applicator cavity and the adjusting adhesive applicator cavity; The adjusting adhesive applicator is connected to the main adhesive applicator, and the adhesive application cavity and the adjusting adhesive application cavity together form an adhesive layer forming space for accommodating the shaft head.

2. The adhesive applicator according to claim 1, characterized in that, The connecting assembly includes a mounting component and a positioning component connected to the mounting component. The main adhesive coating component and the adjusting adhesive coating component are both provided with mounting grooves that cooperate with the mounting component. The main adhesive coating component and the adjusting adhesive coating component are also provided with positioning grooves that cooperate with the positioning component. The positioning grooves are connected to the mounting grooves, and the positioning component extends toward the adhesive layer forming space.

3. The adhesive applicator according to claim 2, characterized in that, The positioning member is provided with a heating element at one end facing the adhesive layer forming space. The heating element is used to heat the connection area between the main adhesive coating member and the adjusting adhesive coating member.

4. The adhesive applicator according to claim 3, characterized in that, The mounting component has a fixing cavity, and a power supply component is provided inside the fixing cavity. The power supply component is electrically connected to the heating element.

5. The adhesive applicator according to claim 3, characterized in that, An elastic seal is provided in the positioning groove. The elastic seal is located on the side of the heating element facing the adhesive layer forming space. The elastic seal is used to seal the connection between the main adhesive coating element and the adjusting adhesive coating element.

6. The adhesive applicator according to claim 3, characterized in that, The positioning groove has a receiving groove on the side near the adhesive layer forming space. An elastic heat-conducting element is provided in the receiving groove. The elastic heat-conducting element is disposed between the heating element and the adhesive layer forming space and abuts against the main adhesive coating element and the adjusting adhesive coating element.

7. The adhesive applicator according to claim 1, characterized in that, The connecting assembly is provided with a locking member, and the adjusting adhesive applicator and the main adhesive applicator are provided with locking members that cooperate with the locking member. The locking member is used to lock the adjusting adhesive applicator to the main adhesive applicator.

8. The adhesive applicator according to claim 1, characterized in that, It also includes a glue supply mechanism, wherein the main glue coating component is provided with a flow distribution cavity communicating with the glue supply mechanism, and the flow distribution cavity is communicating with a plurality of first glue outlet channels.

9. The adhesive applicator according to claim 8, characterized in that, The adjusting adhesive applicator is provided with a flow guiding cavity and an adhesive guiding interface communicating with the flow guiding cavity. The adhesive supply mechanism is provided with an adhesive guiding connector that cooperates with the adhesive guiding interface. The flow guiding cavity is connected to a plurality of second adhesive outlet channels.

10. A method for applying adhesive, characterized in that, The adhesive application apparatus according to any one of claims 1 to 9, wherein the adhesive application method comprises: Obtain the connection parameters of the shaft head, including the size parameters of the shaft head, the connection area parameters, and the mating clearance parameters; The target adhesive layer parameters corresponding to the shaft head are determined based on the connection parameters. The target adhesive layer parameters include adhesive layer thickness, adhesive layer forming area, and adhesive layer thickness distribution. The main adhesive coating component and the adjusting adhesive coating component are matched according to the target adhesive layer parameters, and together they form an adhesive layer forming space corresponding to the target adhesive layer parameters.

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