Gluing jig

Abstract

The invention belongs to the technical field of rubberizing equipment, and discloses a rubberizing jig which comprises a jig body, a supporting piece, an elastic supporting assembly, a first positioning part, a second positioning part and a locking mechanism, before rubberizing, gum is positioned on a bearing surface through the first positioning part and the second positioning part, so that the gum is right opposite to a to-be-rubberized part, and the to-be-rubberized part is positioned on the bearing surface through the elastic supporting assembly; the back glue is locked through the locking mechanism, then the product is placed on the supporting piece, downward pressure is applied to the product, under the action of the downward pressure, the portion to be glued gets close to the back glue, at the moment, the elastic supporting assembly generates compression deformation, an avoiding space is provided for the protruding portion, and the first positioning portion can move along with the supporting piece. Therefore, interference between the protruding part and the first positioning part can be avoided. By means of the arrangement, the gluing jig not only can meet the clearance requirement for the protruding part, but also can guarantee the gluing precision of the back glue.

Description

Technical Field

[0001] This invention relates to the field of adhesive application equipment technology, and more particularly to an adhesive application fixture. Background Technology

[0002] During the assembly of a streaming rearview mirror for a car, adhesive backing needs to be applied to its cover plate. Because the adhesive backing is very narrow, only 2mm to 3mm, manual application is very inconvenient and often requires the use of an adhesive application jig. For adhesive backing thicker than the raised portion of the cover plate, the limiting structure on the application jig can be used to limit its thickness during application, ensuring application accuracy. However, for adhesive backing thinner than the raised portion, the raised portion needs to be cleared during application. The distance between the area to be adhesive applied to the cover plate and the raised portion is often too small (e.g., ...). Figure 1 As shown in the figure, it is impossible to set a limiting structure between the two, which makes it easy for the adhesive to shift when it is fixed.

[0003] Furthermore, because the size of streaming rearview mirrors in cars is relatively small, the area to be covered by adhesive is very limited. In addition, there are inherent tolerances in the adhesive application process. If the adhesive is not effectively positioned internally and externally during fixing, the resulting tolerances can easily increase and become difficult to control. Moreover, after application, the adhesive can easily be obscured by a cover plate, making it impossible to detect any misalignment and affecting the assembly quality of the streaming rearview mirror.

[0004] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide an adhesive application fixture that can meet the requirement of avoiding gaps in raised parts while ensuring the application accuracy of the adhesive backing.

[0006] To achieve this objective, the present invention adopts the following technical solution: An adhesive application fixture, used to attach adhesive backing to the areas of a product to be adhesiveped, includes: The fixture body has a bearing surface for supporting the adhesive backing; Support member, used to support the protruding part of the product; An elastic support assembly is disposed along its axial direction between the fixture body and the support member; A first positioning part is disposed on the support member; The second positioning part is disposed on the bearing surface and cooperates with the first positioning part to position the two opposite sides of the adhesive backing so that the adhesive backing is aligned with the part to be applied. A locking mechanism, disposed on the bearing surface, is configured to lock or release the adhesive backing positioned on the bearing surface; When downward pressure is applied to the product, the elastic support component undergoes compression deformation, causing the support member and the protruding part to move downward together, providing clearance space for the protruding part; and the part to be adhesiveped then moves closer to the adhesive backing and adheres to it.

[0007] Preferably, the support extends to the outside of the protrusion, and its outer sidewall can serve as the first positioning part to position the adhesive backing.

[0008] Preferably, the second positioning part includes a protrusion that abuts against the edge of the adhesive backing.

[0009] Preferably, the fixture body is provided with a receiving groove, and the inner peripheral wall of the receiving groove abuts against the outer peripheral wall of the support member.

[0010] Preferably, the locking mechanism includes vacuum suction holes evenly distributed on the bearing surface and a negative pressure source communicating with the vacuum suction holes.

[0011] Preferably, the elastic support component includes: The telescopic component has one end embedded in the fixture body and the other end configured to support the support component; An elastic element is connected at both ends to the two ends of the telescopic element, so that the telescopic element has an initial extended position and a compression position to avoid the adhesive application of the protruding part.

[0012] Preferably, the end of the telescopic member is provided with a support block, and the cross-sectional area of ​​the support block is larger than the radial cross-sectional area of ​​the telescopic member. The fixture body is provided with a clearance groove for avoiding the support block.

[0013] Preferably, a plurality of elastic support components are evenly distributed between the fixture body and the support member.

[0014] Preferably, the support member includes a plurality of support portions, each of which is correspondingly provided with a plurality of elastic support components, and the plurality of support portions can form a support surface that conforms to and mimics the shape of the protruding portion.

[0015] Preferably, the adhesive application fixture further includes a limiting mechanism disposed on the fixture body. The limiting mechanism is configured to limit the product on the support member and constrain the downward pressure path of the product so that the part to be adhesively applied remains directly opposite the adhesive backing.

[0016] The beneficial effects of this invention are: The adhesive application fixture proposed in this invention positions the adhesive backing onto the support surface via a first and second positioning part before application, ensuring the adhesive backing aligns with the area to be adhesiveped. A locking mechanism then locks the adhesive backing in place. The product is then placed on a support member, and pressure is applied. Under this pressure, the area to be adhesiveped moves closer to the adhesive backing. At this point, the elastic support component undergoes compression deformation, providing clearance for protruding parts. Furthermore, the first positioning part moves with the support member, preventing interference between the protruding parts and the first positioning part. This design ensures that the adhesive application fixture not only meets the clearance requirement for protruding parts but also guarantees the accuracy of adhesive application. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the product with adhesive backing in this invention; Figure 2 This is a schematic diagram of the adhesive application fixture in this invention; Figure 3 This is a cross-sectional view of the adhesive application fixture in this invention; Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 yes Figure 3 Enlarged view of section B in the middle.

[0018] In the picture: 100. Product; 110. Area to be adhesiveped; 120. Raised area; 200. Adhesive backing; 1. Fixture body; 12. Receiving groove; 13. Clearance groove; 2. Support member; 3. Elastic support assembly; 4. First positioning part; 5. Second positioning part; 6. Locking mechanism; 7. Support block; 8. Limiting mechanism; 81. Limiting block. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication 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 invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0023] Please see Figures 1 to 5 In this embodiment, an adhesive application fixture is proposed for attaching the adhesive 200 to the adhesive application area 110 on the product 100. The product 100 is illustrated by taking the cover plate of a streaming media rearview mirror as an example.

[0024] The adhesive application fixture includes a fixture body 1, a support member 2, an elastic support assembly 3, a first positioning part 4, a second positioning part 5, and a locking mechanism 6. The fixture body 1 has a bearing surface for bearing the adhesive 200; the support member 2 supports the protruding part 120 of the product 100; the elastic support assembly 3 is disposed axially between the fixture body 1 and the support member 2; the first positioning part 4 is disposed on the support member 2; the second positioning part 5 is disposed on the bearing surface and cooperates with the first positioning part 4 to position the opposite sides of the adhesive 200 so that the adhesive 200 is aligned with the part 110 to be applied; the locking mechanism 6 is disposed on the bearing surface and is configured to lock or release the adhesive 200 positioned on the bearing surface; wherein, when downward pressure is applied to the product 100, the elastic support assembly 3 undergoes compression deformation, thereby causing the support member 2 and the protruding part 120 to move downward together, providing clearance space for the protruding part 120; and the part 110 to be applied moves closer to the adhesive 200 and adheres to it.

[0025] Understandably, before applying the adhesive, the first positioning part 4 and the second positioning part 5 position the adhesive 200 on the bearing surface so that the adhesive 200 is aligned with the part 110 to be adhesiveted, improving the positioning accuracy of the adhesive 200. The locking mechanism 6 locks the adhesive 200 to prevent displacement during the application process. Then, the product 100 is placed on the support 2 and pressure is applied to it. Under the action of the pressure, the part 110 to be adhesiveted moves closer to the adhesive 200. At this time, the elastic support component 3 undergoes compression deformation, which can provide clearance space for the protruding part 120 when the thickness of the adhesive 200 is less than that of the protruding part 120. The first positioning part 4 can move together with the support 2, thereby avoiding interference between the protruding part 120 and the first positioning part 4. After the application is completed, the locking mechanism 6 releases the adhesive 200 and releases the pressure applied to the product 100. Under the action of the elastic support component 3, the product 100 with the adhesive 200 is able to rise together with the support 2.

[0026] Furthermore, for products 100 with different thicknesses of the protruding parts 120, the elastic support component 3 can generate different compression amounts during the adhesive application process, thereby enabling adhesive application to different models of products 100 and improving the applicability of the adhesive application fixture.

[0027] In this embodiment, the support member 2 extends to the outside of the protruding portion 120, and its outer wall can serve as the first positioning part 4 to position the adhesive 200. This configuration eliminates the need for additional limiting structures to achieve lateral positioning of one side of the adhesive 200, thereby fundamentally solving the problem that the distance between the adhesive-to-be-applied portion 110 and the protruding portion 120 is too small to allow for the placement of a limiting structure between them. Furthermore, integrating the support for the protruding portion 120 and the positioning of the adhesive onto the same support member 2 reduces the number of independent components on the fixture, making its structure simpler and more compact.

[0028] Correspondingly, the second positioning part 5 includes a protrusion that abuts against the edge of the adhesive 200. It can be understood that the protrusion, as a rigid physical blocking structure, abuts against one side edge of the adhesive 200, while the outer wall of the support member 2 abuts against the other side edge of the adhesive 200. Under the action of the support member 2 and the protrusion, the opposite sides of the adhesive 200 can be positioned. When placing the adhesive 200, simply placing it between the two parts is sufficient to achieve positioning of the adhesive 200.

[0029] In practical applications, when applying adhesive to the cover plate, it is necessary to apply backing adhesive 200 to the periphery of the protruding part 120 to ensure the assembly quality of the cover plate. Therefore, annular backing adhesive 200 is often selected. Correspondingly, the protrusion is annular, and an annular receiving groove can be formed between the protrusion and the support member 2. The receiving groove is adapted to the shape of the backing adhesive 200.

[0030] Furthermore, the fixture body 1 is provided with a receiving groove 12, the inner peripheral wall of which abuts against the outer peripheral wall of the support member 2. It is understood that the support member 2 is preferably a plate-like structure adapted to and conforming to the receiving groove 12. When the support member 2 is placed, the receiving groove 12 can limit its position, ensuring the positioning accuracy of the support member 2. During the movement of the support member 2, the inner peripheral wall of the receiving groove 12 acts as a guide, ensuring that the support member 2 moves smoothly along the axial direction during the compression and rebound of the elastic support component 3. This eliminates the need for additional connecting structures between the support member 2 and the elastic support component 3, reducing the number of parts and effectively preventing horizontal swaying, tilting, or rotation of the support member 2. This lays the mechanical foundation for the precise and repeatable avoidance movement of the protruding part 120 and further ensures the consistency of each attachment action.

[0031] In this embodiment, the locking mechanism 6 includes vacuum suction holes evenly distributed on the bearing surface and a negative pressure source communicating with the vacuum suction holes. It is understood that the vacuum suction holes are evenly distributed on the bearing surface. After the adhesive 200 is positioned, the negative pressure source begins operation to adsorb and fix the adhesive 200. After the adhesive 200 is attached, the negative pressure source stops operation, releasing the adsorption and fixation of the adhesive 200. Preferably, the negative pressure source is a vacuum pump, as is commonly used in the prior art.

[0032] In practical applications, the fixture body 1 is provided with a sealed chamber and multiple vacuum pipes. The multiple vacuum pipes are arranged one-to-one with multiple vacuum suction holes and are all connected to the sealed chamber. The sealed chamber is connected to a negative pressure source. By using the negative pressure source to evacuate the sealed chamber, the adhesive 200 can be adsorbed and fixed at various positions, thereby further preventing the adhesive 200 from shifting.

[0033] In this embodiment, the elastic support component 3 includes a telescopic member and an elastic member. One end of the telescopic member is embedded in the fixture body 1, and the other end is configured as a support member 2. The two ends of the elastic member are respectively connected to the two ends of the telescopic member, so that the telescopic member has an initial extended position and a compression clearance protrusion 120 adhesive application position. It can be understood that the bottom of the receiving groove 12 is vertically provided with multiple mounting holes, so that the telescopic member can be inserted into the corresponding mounting holes according to different installation requirements. Under the action of the elastic member, the telescopic member can be kept in an extended state. After the product 100 is placed on the support member 2, the part to be adhesiveped 110 can be placed above the adhesive backing 200. Then, under the action of downward pressure, the elastic member can be compressed, thereby driving the telescopic member to be compressed, so that the part to be adhesiveped 110 moves closer to the adhesive backing 200 to complete the adhesion.

[0034] For example, the telescopic member is preferably a telescopic rod in the prior art, and the elastic member is preferably a compression spring in the prior art. The compression spring is disposed inside the telescopic rod and is coaxially disposed therewith. Under the action of the compression spring, the telescopic rod remains in the telescopic state.

[0035] In addition, to facilitate the assembly of the adhesive application fixture, the elastic support component 3 can also be a standard component that can be elastically stretched, such as a spring pin, in the prior art.

[0036] It should be noted that when selecting the elastic support component 3, its height must be such that the bearing surface is located in the middle of the outer wall of the support component 2 at the initial position, so as to ensure both the positioning accuracy of the support component 2 and the positioning accuracy of the adhesive 200.

[0037] Furthermore, a support block 7 is provided at the end of the telescopic component, and the cross-sectional area of ​​the support block 7 is larger than the radial cross-sectional area of ​​the telescopic component; a clearance groove 13 is provided on the fixture body 1 to allow clearance from the support block 7. It is understood that the support block 7 increases the contact area between the elastic support assembly 3 and the support member 2, thereby evenly distributing the downward pressure from the support member 2, avoiding stress concentration, and improving the service life of the adhesive application fixture. Furthermore, under the action of the clearance groove 13, the elastic component avoids collision with the bottom of the receiving groove 12 during compression, thus eliminating the need to consider the increase in the height of the adhesive application fixture after adding the support block 7.

[0038] Preferably, multiple elastic support components 3 are evenly distributed between the fixture body 1 and the support member 2. This arrangement can further ensure the stability of the downward pressure during transmission, thereby preventing the product 100 from tilting during the downward pressure process and improving the adhesion accuracy of the adhesive 200.

[0039] In this embodiment, the support member 2 includes multiple support portions, each corresponding to a multiple elastic support component 3, and the multiple support portions can form a support surface that adapts to and conforms to the protrusion 120. It is understood that, depending on the degree of protrusion of the protrusion 120, the compression degree of the corresponding elastic support component 3 varies, thereby ensuring that the entire support surface fits snugly against the protrusion 120. This prevents any part of the protrusion 120 from being suspended, ensuring that the protrusion 120 is subjected to uniform and stable force during compression, without local deformation or displacement.

[0040] It should be noted that different models of support parts can be replaced according to different support requirements, thereby improving the applicability of the adhesive application fixture. The outermost support part's outer wall serves as the first positioning part 4 to position the adhesive 200.

[0041] In this embodiment, the adhesive application fixture also includes a limiting mechanism 8 disposed on the fixture body 1. The limiting mechanism 8 is configured to limit the product 100 located on the support member 2 and constrain the downward pressing path of the product 100 so that the part to be adhesively applied 110 remains directly opposite the backing adhesive 200. This configuration ensures the positioning accuracy between the part to be adhesively applied 110 and the backing adhesive 200, as well as the positioning accuracy between the protruding part 120 and the support member 2, and also ensures the stability of the product 100 during the pressing process.

[0042] The limiting mechanism 8 includes multiple limiting blocks 81, which are arranged around the circumference of the product 100. Each limiting block 81 can abut against the corresponding outer wall of the product 100, thereby positioning the product 100. When the product 100 is subjected to downward pressure, the product 100 can be displaced relative to the limiting block 81 to constrain the downward pressure path of the product 100.

[0043] The specific application process of the adhesive backing 200 is as follows: After assembling the adhesive application fixture, the release film on the upper surface of the adhesive backing 200 is removed, and the release film on the lower surface is placed on the supporting surface. The position of the adhesive backing 200 is adjusted so that both sides of the adhesive backing 200 abut against the protrusion and the outer wall of the support member 2, respectively, thus completing the positioning of the adhesive backing 200. Then, the negative pressure source starts the vacuum operation to complete the adsorption and fixation of the adhesive backing 200. The part 110 of the product 100 to be adhesiveped is aligned with the adhesive backing 200, and it is placed on the support surface. Within the area surrounded by the limiting block 81, the product 100 is positioned. Using an external pressing mechanism, such as a linear cylinder, pressure is applied to the product 100, compressing the elastic element and causing the part to be glued 110 to move closer to the adhesive backing 200 and complete the adhesion. After the negative pressure source stops drawing vacuum, the pressing mechanism releases the downward pressure applied to the product 100, and the elastic element rebounds, causing the product 100 with the adhesive backing 200 to rise. Then, it is removed from the glue application fixture, and the glue application of the next product 100 begins.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An adhesive applicator for attaching adhesive (200) to the adhesive-bearing portion (110) of a product (100), characterized in that, include: The fixture body (1) has a bearing surface for bearing the adhesive backing (200); Support member (2) for supporting the protruding portion (120) of the product (100); An elastic support assembly (3) is disposed along its axial direction between the fixture body (1) and the support member (2); The first positioning part (4) is disposed on the support member (2); The second positioning part (5) is disposed on the bearing surface and cooperates with the first positioning part (4) to position the two sides opposite to the adhesive backing (200) so that the adhesive backing (200) is directly opposite to the part to be glued (110); A locking mechanism (6) is disposed on the bearing surface and configured to lock or release the adhesive backing (200) positioned on the bearing surface; When downward pressure is applied to the product (100), the elastic support component (3) undergoes compression deformation, thereby causing the support member (2) and the protruding part (120) to move downward together, providing clearance space for the protruding part (120); and the part to be adhesiveped (110) moves closer to the adhesive backing (200) and adheres to it.

2. The adhesive application fixture according to claim 1, characterized in that, The support member (2) extends to the outside of the protrusion (120), and its outer sidewall can serve as the first positioning part (4) to position the adhesive backing (200).

3. The adhesive application fixture according to claim 1, characterized in that, The second positioning part (5) includes a protrusion that abuts against the edge of the adhesive backing (200).

4. The adhesive application fixture according to claim 1, characterized in that, The fixture body (1) is provided with a receiving groove (12), and the inner peripheral wall of the receiving groove (12) abuts against the outer peripheral wall of the support member (2).

5. The adhesive application fixture according to claim 1, characterized in that, The locking mechanism (6) includes vacuum suction holes evenly distributed on the bearing surface and a negative pressure source communicating with the vacuum suction holes.

6. The adhesive application fixture according to claim 1, characterized in that, The elastic support component (3) includes: The telescopic component has one end embedded in the fixture body (1) and the other end configured to support the support component (2); An elastic element is connected at both ends to the two ends of the telescopic element, so that the telescopic element has an initial extended position and a compression clearance for the adhesive application position of the protruding part (120).

7. The adhesive application fixture according to claim 6, characterized in that, The end of the telescopic member is provided with a support block (7), and the cross-sectional area of ​​the support block (7) is greater than the radial cross-sectional area of ​​the telescopic member; The fixture body (1) is provided with a clearance groove (13) for clearing the support block (7).

8. The adhesive application fixture according to claim 1, characterized in that, Multiple elastic support components (3) are evenly distributed between the fixture body (1) and the support member (2).

9. The adhesive application fixture according to claim 1, characterized in that, The support member (2) includes multiple support parts, each of which is provided in a one-to-one correspondence with a multiple elastic support assembly (3), and the multiple support parts can form a support surface that is adapted to and conforms to the protrusion (120).

10. The adhesive application fixture according to claim 1, characterized in that, The adhesive application fixture also includes a limiting mechanism (8) disposed on the fixture body (1). The limiting mechanism (8) is configured to limit the product (100) on the support (2) and constrain the downward pressure path of the product (100) so that the part to be adhesively applied (110) is kept facing the adhesive backing (200).

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