Automobile roof positioning tool

Abstract

The utility model provides a kind of automobile roof positioning tool, including substrate, and substrate is equipped with positioning die, press mounting mechanism and multiple for the metal frame of automobile roof are positioned auxiliary positioning assembly;Auxiliary positioning assembly includes mounting pedestal, and the upper end of mounting pedestal is equipped with the positioning base block for abutting at the lower end surface of metal frame, and the lower end of positioning base block is recessed and is equipped with accommodating cavity, when automobile roof is placed and positioned on positioning die, magnet can be positioned to accommodating cavity under the adsorption of metal frame, to realize the position limitation of metal frame;Mounting pedestal is also equipped with actuator for driving magnet to separate from accommodating cavity to realize that metal frame is released from location limitation.The utility model discloses a kind of automobile roof positioning tool, can realize the quick positioning of metal frame part, easy to operate, and will not cause product surface damage.

Description

Technical Field

[0001] This utility model relates to the field of automotive roof processing technology, and more specifically, to an automotive roof positioning fixture. Background Technology

[0002] The car roof is made of a composite of a base material and a fabric. Generally, after the injection-molded semi-finished base material is processed, a layer of decorative fabric is attached to its lower surface. At both ends of the roof base material and at the sunroof opening, the edges need to be wrapped. That is, the decorative fabric attached to the inner surface of the sunroof frame of the interior roof semi-finished product needs to be flipped from the inner surface of the sunroof frame to the outer surface of the sunroof opening and bonded to the outer surface of the sunroof frame.

[0003] For some special requirements, after the edging is formed, a metal frame (iron part) is usually installed around the sunroof opening to increase the structural strength. In addition, corresponding mushroom-shaped fasteners are glued to the plastic support. The mushroom-shaped fasteners are mainly used to connect the entire car roof to the roof mounting bracket by adhesive.

[0004] Currently, after the automotive roof assembly is manufactured, the entire assembly needs to be placed on a specialized testing fixture for dimensional and profile inspection. Only those that pass the inspection can leave the factory. During inspection, the roof assembly needs to be positioned on the specialized fixture. In addition to pressing and limiting the outer contour edges, the metal frame near the sunroof also needs to be positioned to simulate the actual vehicle assembly environment and ensure the accuracy of the roof assembly inspection data.

[0005] In existing technologies, the positioning of the metal frame is generally achieved using a traditional press-fitting mechanism. This mechanism includes a support base, with the metal frame attached to the support base. Near the support base, there is a corresponding pressure plate and a drive assembly. The drive assembly is used to drive the pressure plate to press against the side of the car headliner opposite the metal frame. This traditional press-fitting mechanism is not only complex in structure and difficult to disassemble and assemble, but also inconvenient to use. In addition, after the car headliner is wrapped, the edge of the sunroof opening has a fabric layer. The pressure plate of the press-fitting mechanism is generally located inside the sunroof opening. It can extend and retract vertically and rotate circumferentially. During press-fitting, the pressure plate cannot guarantee effective pressing against the sheet metal every time, which can easily lead to inaccurate test results due to incomplete pressing. If the pressure plate clamping force is too large, it may cause indentations or even damage to the outer edge of the finished headliner. Utility Model Content

[0006] The problem solved by this utility model is to overcome at least one defect in the prior art and provide a car roof positioning fixture that can achieve quick positioning of the metal frame part, is easy to operate, and will not cause damage to the outer surface of the product.

[0007] To address the aforementioned problems, this utility model provides a car roof positioning fixture, comprising a base plate, on which a positioning mold for supporting the car roof is provided, and a pressing mechanism for pressing and limiting the upper surface of the car roof is provided on the outer side of the positioning mold on the base plate; the base plate also provides an annular bracket for supporting the sunroof opening of the car roof, and a plurality of auxiliary positioning components distributed circumferentially on the outer side of the annular bracket for positioning the metal frame around the sunroof opening of the car roof; the auxiliary positioning components include a mounting base, the upper end of which is provided with a positioning base block for abutting against the lower end face of the metal frame, and a vertically slidable magnet on the mounting base, the lower end of which is recessed with a receiving cavity. When the car roof is placed and positioned on the positioning mold, the magnet can move and position itself into the receiving cavity under the attraction of the metal frame, thereby limiting the position of the metal frame; the mounting base also provides an actuator for driving the magnet out of the receiving cavity to release the metal frame from its limiting position.

[0008] Compared with the prior art, the advantages of this utility model's automotive roof positioning fixture are: This utility model discloses a specialized multi-functional positioning fixture for automobile roofs. It includes a positioning mold core and a pressing mechanism located on its outer periphery. The pressing mechanism consists only of mounting bases and magnets. During positioning, the automobile roof is placed on the positioning mold core at a set angle, so that the metal frame corresponds to multiple positioning bases. The magnets on the multiple mounting bases are attracted to the lower end face of the metal frame. The magnetic attraction force of the magnets causes the metal frame to be attracted and positioned with the multiple mounting bases. After attraction, there is no need to press on the other side of the metal frame, so as not to damage the outer surface of the product. When it is necessary to release the positioning, the magnet can be moved away from the receiving cavity by operating the actuator. As the magnet moves away from the metal frame, the magnetic attraction force acting on the metal frame becomes weaker and weaker, and then the automobile roof can be easily separated from the auxiliary positioning components.

[0009] Furthermore, the press-fit structure includes a first press-fit assembly, a second press-fit assembly, and a third press-fit assembly. The first press-fit assembly includes two imitation A-pillar press blocks that can be flipped up and down and correspond to the positions of the A-pillars on both sides of the vehicle body. The second press-fit assembly includes two imitation B-pillar press blocks that can be flipped up and down and correspond to the positions of the B-pillars on both sides of the vehicle body. The third press-fit assembly includes two imitation C-pillar press blocks that can be flipped up and down and correspond to the positions of the C-pillars on both sides of the vehicle body. In the above structure, the first pressing component, the second pressing component, and the third pressing component each include contoured pressing blocks corresponding to the actual A-pillar, B-pillar, and C-pillar positions of the vehicle body. Specifically, the first pressing component includes two flip-up contoured A-pillar pressing blocks that correspond to the A-pillar positions on both sides of the vehicle body; the second pressing component includes two flip-up contoured B-pillar pressing blocks that correspond to the B-pillar positions on both sides of the vehicle body; and the third pressing component includes two flip-up contoured C-pillar pressing blocks that correspond to the C-pillar positions on both sides of the vehicle body. When the car roof is placed on the positioning mold core according to the set position, the contoured A-pillar pressing blocks, B-pillar pressing blocks, and C-pillar pressing blocks are flipped up and down in sequence. The six pressing blocks are pressed and positioned on the upper surface of the car roof, and the pressing position is completely consistent with the pressing position when the car roof is actually installed on the vehicle. Furthermore, the shape of the pressing blocks is also consistent with the shape of the actual A-pillar, B-pillar, and C-pillar of the vehicle body, which fully ensures the consistency between the positioning state of the car roof and the actual installation environment, thereby ensuring the accuracy of the surface dimension detection after the car roof is positioned.

[0010] As an improvement, the upper end of the mounting base is provided with a vertically arranged mounting channel, a guide block is slidably mounted in the mounting channel, the magnet is connected to the upper end of the guide block, the actuator is used to drive the guide block to move downward, and the lower end of the mounting channel is provided with a limiting block for limiting the downward movement of the guide block.

[0011] In a further improvement, the accommodating cavity is a circular hole, and the lower end face of the positioning base block is also provided with a limiting hole communicating with the accommodating cavity. The diameter of the limiting hole is larger than the diameter of the accommodating cavity. When the metal frame and the magnet are attracted and fixed, the upper end face of the guide block abuts against the bottom wall of the limiting hole, while the upper end face of the magnet does not contact the bottom wall of the accommodating cavity. This improved structure prevents the magnet from contacting the bottom wall of the accommodating cavity, thus avoiding collisions between the magnet and the bottom of the accommodating cavity during each positioning, which would not only generate noise but could also cause the magnet to crack.

[0012] In a further improvement, the magnet has a cylindrical structure, and the upper end face of the positioning base is provided with a connecting hole that connects to the accommodating cavity, and the diameter of the connecting hole is smaller than the diameter of the magnet.

[0013] In a further improvement, the lower end of the mounting base is provided with a vertically arranged cavity, the actuator is located in the cavity, and the upper end of the actuator is connected to the guide block. The side wall of the lower end of the mounting base is provided with an operating channel that communicates with the cavity and is used to operate the actuator.

[0014] In a further improvement, the actuator is a pull rope, the upper end of which moves through the limiting block and connects to the guide block, and the lower end of the pull rope, located on the outer wall of the portion inside the cavity, is provided with a rubber sleeve. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the automotive roof positioning fixture of this utility model in its working state; Figure 2 This is a schematic diagram of the auxiliary positioning component in this utility model; Figure 3 This is a cross-sectional view of the auxiliary positioning component in this utility model; Figure 4 This is a schematic diagram of the second pressing component in this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Base plate; 2. Positioning mold core; 3. A-pillar imitation pressure block; 4. B-pillar imitation pressure block; 5. C-pillar imitation pressure block; 6. Ring bracket; 7. Mounting base; 8. Positioning base block; 9. Magnet; 10. Receiving cavity; 11. Mounting channel; 12. Guide block; 13. Limiting block; 14. Limiting hole; 15. Connecting hole; 16. Clear cavity; 17. Operating channel; 18. Pull rope; 19. Rubber sleeve; 20. Mounting base; 21. Flip arm; 22. Hand ring; 23. Positioning groove; 24. Positioning post; 25. First positioning hole; 26. Fixing cap; 27. Second positioning hole; 28. Third positioning hole. Detailed Implementation

[0017] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0018] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] See appendix Figures 1-4 This utility model provides a car roof positioning fixture, which includes a base plate 1. The base plate 1 is provided with a positioning mold core 2 for supporting the car roof. The upper end surface of the positioning mold core 2 is provided with a profile that matches the shape of the car roof to ensure the stability of the car roof after positioning. In addition, a pressing mechanism for pressing and limiting the upper surface of the car roof is provided on the base plate 1 outside the positioning mold core 2. Furthermore, in this embodiment, the base plate 1 is also provided with an annular bracket 6 for supporting the sunroof hole position of the car roof, and a plurality of auxiliary positioning components distributed circumferentially outside the annular bracket 6 for positioning the metal frame around the sunroof hole of the car roof.

[0021] The above structure includes multiple auxiliary positioning components. The following explanation will focus on one of these auxiliary positioning components.

[0022] The auxiliary positioning component includes a mounting base 7 fixed on the base plate 1. The upper end of the mounting base 7 is provided with a positioning base block 8 for abutting against the lower end surface of the metal frame. The mounting base 7 is provided with a vertically slidable magnet 9. The lower end of the positioning base block 8 is recessed and provided with a receiving cavity 10. When the car roof is placed and positioned on the positioning mold core 2, since the metal frame is made of iron, the magnet 9 can move and be positioned into the receiving cavity 10 under the attraction of the metal frame, so as to realize the position limitation of the metal frame. In addition, the mounting base 7 is also provided with an actuator for driving the magnet 9 away from the receiving cavity 10 to realize the release of the metal frame from the limitation. That is, when it is necessary to release the positioning, the magnet 9 can be driven to move away from the receiving cavity 10 by operating the actuator. As the magnet 9 moves away from the metal frame, the magnetic attraction force acting on the metal frame becomes weaker and weaker, and then the car roof can be easily separated from the auxiliary positioning component.

[0023] Furthermore, in the above structure, a vertically arranged mounting channel 11 is provided at the upper end of the mounting base 7. A guide block 12 is slidably fitted inside the mounting channel 11. A magnet 9 is connected to the upper end of the guide block 12. An actuator is used to drive the guide block 12 to move downward. A limiting block 13 is provided at the lower end of the mounting channel 11 to limit the downward movement of the guide block 12. The function of the limiting block 13 here is mainly to limit the position of the magnet 9, that is, to ensure that the displacement of the magnet 9 from the positioning base 8 is not too large, so that when the car roof is placed on the positioning mold core 2 during the next positioning, the magnet 9 can be attracted and moved back into the receiving cavity 10. Moreover, the addition of the guide block 12 in this structure ensures the linearity of the up-and-down movement of the magnet 9 and prevents it from getting stuck.

[0024] In this embodiment, the accommodating cavity 10 is a circular hole, and the lower end face of the positioning base block 8 is also provided with a limiting hole 14 communicating with the accommodating cavity 10. The diameter of the limiting hole 14 is larger than the diameter of the accommodating cavity 10. When the metal frame and the magnet 9 are attracted and fixed, the upper end face of the guide block 12 abuts against the bottom wall of the limiting hole 14, and the upper end face of the magnet 9 does not contact the bottom wall of the accommodating cavity 10. This avoids the magnet 9 from colliding with the bottom of the accommodating cavity 10 each time it is limited, which would not only generate noise but may also cause the magnet 9 to crack.

[0025] Furthermore, in the above structure, the magnet 9 is preferably cylindrical, and the upper surface of the positioning base block 8 is provided with a connecting hole 15 that connects to the accommodating cavity 10, and the diameter of the connecting hole 15 is smaller than the diameter of the magnet 9. The connecting hole 15 here allows the magnetic attraction force of the magnet 9 to be better transmitted to the metal frame, improving positioning stability.

[0026] In another aspect, in this embodiment, a vertically arranged cavity 16 is provided at the lower end of the mounting base 7. The actuator is located inside the cavity 16, and the upper end of the actuator is connected to the guide block 12. An operating channel 17 is provided on the side wall of the lower end of the mounting base 7, which communicates with the cavity 16 and is used to operate the actuator. Preferably, the actuator is a pull rope 18. The upper end of the pull rope 18 moves through the limiting block 13 and connects to the guide block 12. A rubber sleeve 19 is provided on the outer wall of the lower end of the pull rope 18, which is located inside the cavity 16. The rubber sleeve 19 is provided to facilitate the operation of the pull rope 18.

[0027] Furthermore, the pressing mechanism in this embodiment includes a first pressing component, a second pressing component, and a third pressing component. The first pressing component includes two imitation A-pillar pressing blocks 3 that can be flipped up and down and correspond to the positions of the A-pillars on both sides of the vehicle body. The second pressing component includes two imitation B-pillar pressing blocks 4 that can be flipped up and down and correspond to the positions of the B-pillars on both sides of the vehicle body. The third pressing component includes two imitation C-pillar pressing blocks 5 that can be flipped up and down and correspond to the positions of the C-pillars on both sides of the vehicle body. When the car roof is placed on the positioning mold core 2 according to the set position, the imitation A-pillar pressing blocks 3, imitation B-pillar pressing blocks 4, and imitation C-pillar pressing blocks 5 are flipped up and down in sequence. The six pressing blocks are pressed and positioned on the upper surface of the car roof, and the pressing position is completely consistent with the pressing position when the car roof is actually installed on the vehicle. Moreover, the shape of the pressing blocks is also consistent with the shape of the A-pillar, B-pillar, and C-pillar of the actual vehicle body, which fully ensures the consistency between the positioning state of the car roof and the actual installation environment, thereby ensuring the accuracy of the surface dimension detection after the car roof is positioned.

[0028] More specifically, the flipping and pressing structures of the imitation A-pillar pressing block 3, imitation B-pillar pressing block 4, and imitation C-pillar pressing block 5 in the above structure are all the same. Here, we will take the pressing structure of one side of the B-pillar as an example for further explanation.

[0029] See appendix Figure 4The second pressing assembly also includes a mounting base 20, the upper end of which is connected to a vertically rotatable flip arm 21. A B-pillar pressing block 4 is connected to the free end of the flip arm 21. A carrying ring 22 is also provided at the upper end of the flip arm 21, allowing workers to easily rotate the flip arm 21 up and down by holding the carrying ring 22. Additionally, a fixing base is provided at the top of the mounting base 20, with a positioning groove 23. A positioning post 24 is provided at the bottom of the positioning groove 23, and a first positioning hole 25 is provided on the side wall of the positioning post 24. A fixing cap 26 is connected to the upper end of the flip arm 21, with a fixing hole in the middle of the fixing cap 26 for the positioning post 24 to move and engage. A clearance hole coaxial with the fixing hole is provided on the flip arm 21, and a second positioning hole 27 is provided on the side wall of the fixing cap 26. Both sides of the positioning groove 23 are provided with... The third positioning hole 28; when the imitation B-pillar pressing block 4 is pressed onto the upper surface of the car roof, the positioning pin 24 passes through the clearance hole and is inserted into the fixing hole of the fixing cap 26. The two third positioning holes 28, the first positioning hole 25 and the second positioning hole 27 are located on the same axis. The corresponding positioning pins (not shown in the figure) are inserted into each positioning hole to realize the position limitation between the flip arm 21 and the fixing seat. When it is necessary to release the pressing of the outer edge of the car roof, the positioning pin is pulled out and the flip arm 21 is rotated upwards, which is very convenient.

[0030] In embodiments of this utility model, unless otherwise explicitly specified and limited, the "upper end" and "lower end" of the first feature and the second feature can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, the "lower end" and "lower side" of the first feature and the second feature can refer to the first feature being directly below or diagonally below the second feature, or simply indicating that the horizontal height of the first feature is less than that of the second feature. Additionally, terms such as "upper," "lower," "both sides," and "both ends," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, the reference to terms such as "this embodiment," "some embodiments," etc., indicates 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 utility model. 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 may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A positioning fixture for an automobile roof, characterized in that: The system includes a base plate (1), on which a positioning mold (2) for supporting a car roof is provided. A pressing mechanism for pressing and limiting the upper surface of the car roof is provided on the outer side of the positioning mold (2) on the base plate (1). The base plate (1) also includes an annular bracket (6) for supporting the sunroof opening of the car roof, and multiple auxiliary positioning components distributed circumferentially on the outer side of the annular bracket (6) for positioning the metal frame around the sunroof opening of the car roof. The auxiliary positioning components include a mounting base (7), on which the upper surface of the mounting base (7) is... The mounting base (7) is provided with a positioning base (8) for abutting against the lower end face of the metal frame. The mounting base (7) is provided with a vertically slidable magnet (9). The lower end of the positioning base (8) is recessed and provided with a receiving cavity (10). When the car roof is placed and positioned on the positioning mold (2), the magnet (9) can move and be positioned into the receiving cavity (10) under the adsorption of the metal frame, so as to realize the position limitation of the metal frame. The mounting base (7) is also provided with an actuator for driving the magnet (9) to detach from the receiving cavity (10) so as to realize the release of the metal frame from the limitation.

2. The automotive roof positioning fixture according to claim 1, characterized in that: The pressing mechanism includes a first pressing component, a second pressing component, and a third pressing component. The first pressing component includes two imitation A-pillar pressing blocks (3) that can be flipped up and down and correspond to the positions of the A-pillars on both sides of the vehicle body. The second pressing component includes two imitation B-pillar pressing blocks (4) that can be flipped up and down and correspond to the positions of the B-pillars on both sides of the vehicle body. The third pressing component includes two imitation C-pillar pressing blocks (5) that can be flipped up and down and correspond to the positions of the C-pillars on both sides of the vehicle body.

3. The automotive roof positioning fixture according to claim 1, characterized in that: The mounting base (7) has a vertically arranged mounting channel (11) at its upper end. A guide block (12) is slidably mounted in the mounting channel (11). The magnet (9) is connected to the upper end of the guide block (12). The actuator is used to drive the guide block (12) to move downward. The lower end of the mounting channel (11) is provided with a limiting block (13) for limiting the downward movement of the guide block (12).

4. The automotive roof positioning fixture according to claim 3, characterized in that: The accommodating cavity (10) is a circular hole. The lower end face of the positioning base block (8) is also provided with a limiting hole (14) that communicates with the accommodating cavity (10). The diameter of the limiting hole (14) is larger than the diameter of the accommodating cavity (10). When the metal frame is attracted and fixed to the magnet (9), the upper end face of the guide block (12) abuts against the bottom wall of the limiting hole (14), and the upper end face of the magnet (9) does not contact the bottom wall of the accommodating cavity (10).

5. The automotive roof positioning fixture according to claim 4, characterized in that: The magnet (9) has a cylindrical structure. The upper end face of the positioning base block (8) is provided with a connecting hole (15) that connects to the accommodating cavity (10), and the diameter of the connecting hole (15) is smaller than the diameter of the magnet (9).

6. The automotive roof positioning fixture according to claim 3, characterized in that: The lower end of the mounting base (7) is provided with a vertically arranged cavity (16), the actuator is located in the cavity (16), and the upper end of the actuator is connected to the guide block (12). The side wall of the lower end of the mounting base (7) is provided with an operation channel (17) that communicates with the cavity (16) and is used to operate the actuator.

7. The automotive roof positioning fixture according to claim 6, characterized in that: The actuator is a pull rope (18), the upper end of which moves through the limiting block (13) and connects to the guide block (12), and a rubber sleeve (19) is provided on the outer wall of the lower end of the pull rope (18) located inside the cavity (16).

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