Shielding jig for sensor cover

Abstract

The utility model relates to the technical field of sensor cover paint spraying, and discloses a shielding jig for a sensor cover, which comprises a support frame, a sensor cover body matched with the support frame, a first shielding plate and a second shielding plate, the ends, away from the support frame, of the first shielding plate and the second shielding plate are each fixedly provided with a clamping rod. According to the shielding jig for the sensor cover, the support frame, the shielding plate and the clamping rods are integrally formed in an injection molding mode, assembling is not needed, the process is simplified, cost is reduced, double clamping structures are arranged at the two ends, the inclined portion of the clamping rod at one end abuts against a cover clamping groove, and the other end is combined with a buckle to be buckled through a splayed clamping block. By combining multi-dimensional positioning of the adaptive column and the insertion hole and multi-dimensional positioning of the alignment strip and the adaptive groove, it is ensured that the jig and the cover cap are tightly attached and do not deviate, a non-spraying area can be accurately shielded, the light transmittance of the cover cap is protected, overall operation is simple, rapid installation can be achieved without tools, and the production line efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sensor cover painting technology, specifically a masking fixture for sensor covers. Background Technology

[0002] Sensor covers in automotive cabins are protective components for sensors in smart cockpits, used to protect devices such as cameras and radars. They combine optical performance with aesthetic design, and their core functions include physical protection (dustproof, vibration-resistant, etc.) and optical compatibility. They require the use of high-transmittance materials (such as ABS, PC / ABS) and coatings to ensure clear signals. In terms of design, they are often integrated with interior trim parts, and the "invisible" effect is achieved through injection molding of the same color, enhancing the minimalist aesthetics of the cabin. This component is widely used in driver monitoring (DMS) and passenger monitoring (OMS) systems.

[0003] In existing technologies, the sensor cover for automotive cabins needs to meet the requirement of infrared transmittance greater than 87%. The traditional method is to use adhesive tape to cover the light-transmitting area. This method has problems such as low clamping efficiency, time-consuming and labor-intensive manual operation, and difficulty in adapting to the needs of large-scale production. In addition, the positioning accuracy of the tape is insufficient, and it is easy to deviate or wrinkle, which causes paint to seep into the covered area during the spraying process, contaminating the light-transmitting surface of the cover and directly affecting the infrared transmittance performance required for camera monitoring. At the same time, the tape can easily scratch the inner surface of the cover during the application and removal process, causing irreversible damage and increasing the defect rate. To address these issues, we propose a masking fixture for sensor covers. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a shielding fixture for a sensor cover, thereby resolving the problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a shielding fixture for a sensor cover, comprising a support frame and a sensor cover body that is fitted and installed with the support frame. A first shielding plate and a second shielding plate are symmetrically installed on the outer side of the support frame. A locking rod is fixedly installed at the end of each of the first and second shielding plates away from the support frame. An inclined portion is provided at the end of each locking rod away from the first and second shielding plates. A first insertion hole and a second insertion hole are provided on the outer side of the support frame. An inwardly recessed portion is also provided on the outer side of the support frame. The portion of the support frame away from the sensor cover body... A clamping block is fixedly installed on one side of the body, and a reinforcing rib is fixedly installed on the outer side of the clamping block. Reinforcing strips are fixedly installed on the outer sides of the support frame, the first shielding plate, and the second shielding plate. A first buckle, a second buckle, and an adapter post are fixedly installed inside the sensor cover body. A snap-fit ​​groove is provided on the side of the second buckle near the support frame. Multiple alignment strips are distributed in a ring at equal intervals along the inner edge of the sensor cover body. An adapter groove that matches the alignment strips is provided at the connection point of the support frame near the edge of the sensor cover body. An inclined part is provided at the connection point of the snap-fit ​​rod and the snap-fit ​​groove.

[0008] Preferably, the bracket frame, the first shielding plate, the second shielding plate, and the snap-fit ​​rod are integrally injection molded. The first shielding plate and the second shielding plate have the same structure, and both the first shielding plate and the second shielding plate are in contact with the sensor cover body.

[0009] The above technical solution eliminates the need for assembly by using an integrated injection-molded bracket frame, first shielding plate, second shielding plate, and snap-fit ​​rod, reducing the cost per unit. The design of both the first and second shielding plates being in contact with the sensor cover body ensures that the first and second shielding plates can cover the sensor cover body, preventing paint from spraying onto the covered areas and affecting the light transmittance of the sensor cover body.

[0010] Preferably, the locking rod is located inside the locking groove, and the inclined portion is in contact with the locking groove.

[0011] Through the above technical solution, one end of the masking fixture can be firmly pressed against the inside of the locking groove by the inclined part of the upper part of the locking rod, ensuring that the sensor cover body and the bracket frame will not separate during the painting process.

[0012] Preferably, the clamping blocks and reinforcing ribs are provided in four identical sets, and the cross-section of each set of clamping blocks is in the shape of an "eight". The clamping blocks are located outside the first insertion hole. The number of reinforcing ribs is twice that of the clamping blocks. The clamping blocks adopt a beveled design, and the angle between the clamping blocks and the support frame is 60°.

[0013] Preferably, the first buckle and the first insertion hole are connected by insertion, the first buckle passes through the first insertion hole and extends to the outside of the bracket frame, and the clamping block is connected by abutment with the first buckle.

[0014] Through the above technical solution, the other end of the masking fixture can be tightly fastened by the clamping block and the first buckle, ensuring that the sensor cover body and the support frame will not separate during the painting process, so that the sensor cover body is always in close contact with the support frame, and the reinforcing rib can also improve the strength of key stress parts and extend the service life of the fixture.

[0015] Preferably, the second insertion hole and the adapter post are provided with two identical sets, the adapter post and the second insertion hole are connected by insertion, and the adapter post passes through the second insertion hole and extends to the outside of the bracket frame.

[0016] Preferably, the alignment strips and adapter slots are provided in two identical sets, and the two sets of alignment strips and adapter slots are symmetrically distributed about the vertical center line of the support frame.

[0017] The above technical solution, through the design of the second insertion hole and the adapter post, the alignment strip and the adapter groove, can play a positioning role, preventing the bracket frame from shifting laterally inside the sensor cover body, and ensuring a stable connection between the fixture and the sensor cover.

[0018] Compared with the prior art, the present invention provides a shielding fixture for a sensor cover, which has the following beneficial effects:

[0019] This masking fixture for sensor covers features an integrated injection-molded design of the support frame, masking plate, and snap-fit ​​rod, allowing for direct use without assembly. This significantly simplifies the installation process and reduces production costs. The double-clamping structure features a snap-fit ​​rod at one end that presses against the cover's snap-fit ​​groove, while the other end's figure-eight clamping block, combined with the first buckle, secures the fixture. The multi-dimensional positioning design, featuring adapter posts and insertion holes, alignment strips and adapter slots, ensures a tight fit between the fixture and the cover without misalignment. This precisely masks non-painted areas to protect the cover's light transmittance while resisting external spraying forces to prevent fixture displacement. This ensures that paint will not spray onto the masked areas, thus maintaining the sensor cover's light transmittance. The overall operation is simple, requiring no tools for quick installation and significantly improving production line efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the disassembled structure of the sensor cover body and the support frame of this utility model;

[0022] Figure 3This is a schematic diagram of the installation structure of the first shielding plate and the second shielding plate of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the support frame of this utility model;

[0024] Figure 5 This is a schematic diagram of the mounting structure of the snap-fit ​​rod of this utility model;

[0025] Figure 6 This is a schematic diagram of the clamping block installation structure of this utility model;

[0026] Figure 7 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0027] The components are: 1. Support frame; 2. First shielding plate; 3. Second shielding plate; 4. Snap-fit ​​rod; 5. First insertion hole; 6. Second insertion hole; 7. Recessed part; 8. Clamping block; 9. Reinforcing rib; 10. Reinforcing strip; 11. Sensor cover body; 12. First buckle; 13. Second buckle; 14. Snap-fit ​​groove; 15. Alignment strip; 16. Adaptor post; 17. Adaptor groove; 18. Inclined part. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] like Figure 1-7As shown, the present invention provides a shielding fixture for a sensor cover, comprising a support frame 1 and a sensor cover body 11 that is fitted and installed in conjunction with the support frame 1. A first shielding plate 2 and a second shielding plate 3 are symmetrically installed on the outer side of the support frame 1. A locking rod 4 is fixedly installed at the end of each of the first shielding plate 2 and the second shielding plate 3 away from the support frame 1. An inclined portion 18 is provided at the end of the locking rod 4 away from the first shielding plate 2 and the second shielding plate 3. A first insertion hole 5 and a second insertion hole 6 are provided on the outer side of the support frame 1. An indentation 7 is provided on the outer side of the support frame 1. A clamping device is fixedly installed on the side of the support frame 1 away from the sensor cover body 11. Block 8, a reinforcing rib 9 is fixedly installed on the outside of the clamping block 8, and reinforcing strips 10 are fixedly installed on the outside of the bracket frame 1, the first shielding plate 2 and the second shielding plate 3. The sensor cover body 11 is fixedly installed with a first buckle 12, a second buckle 13 and an adapter post 16. The second buckle 13 has a snap-fit ​​groove 14 on the side near the bracket frame 1. Multiple alignment strips 15 are distributed in a ring at equal intervals along the inner edge of the sensor cover body 11. An adapter groove 17 that matches the alignment strips 15 is opened at the connection point of the bracket frame 1 near the edge of the sensor cover body 11. An inclined part 18 is provided at the connection point of the snap-fit ​​rod 4 and the snap-fit ​​groove 14.

[0031] Specifically, the bracket frame 1, the first shielding plate 2, the second shielding plate 3, and the snap-fit ​​rod 4 are integrally injection molded. The first shielding plate 2 and the second shielding plate 3 have the same structure. Both the first shielding plate 2 and the second shielding plate 3 are in contact with the sensor cover body 11. The advantage is that by using the integrally injection molded bracket frame 1, the first shielding plate 2, the second shielding plate 3, and the snap-fit ​​rod 4, no assembly is required, reducing the processing cost of a single part. The design that the first shielding plate 2 and the second shielding plate 3 are in contact with the sensor cover body 11 ensures that the first shielding plate 2 and the second shielding plate 3 can shield the sensor cover body 11, ensuring that the paint will not spray onto the shielded area during the painting process, and will not affect the light transmittance of the sensor cover body 11.

[0032] Example 2:

[0033] like Figure 3-7As shown, as an improvement on the previous embodiment, in order to better engage the fixture inside the sensor cover, the engaging rod 4 is located inside the engaging groove 14, and the inclined part 18 is in abutting connection with the engaging groove 14. The advantage is that one end of the fixture is covered, and the inclined part 18 on the upper part of the engaging rod 4 can be tightly pressed against the inside of the engaging groove 14, ensuring that the sensor cover body 11 and the bracket frame 1 will not separate during the painting process. The clamping blocks 8 and reinforcing ribs 9 are provided in four identical sets. The cross-section of each set of clamping blocks 8 is in the shape of an "eight". The clamping blocks 8 are located outside the first insertion hole 5. The number of reinforcing ribs 9 is twice that of the clamping blocks 8. The clamping block 8 adopts a beveled design, and the angle between the clamping block 8 and the bracket frame 1 is 60°. The first buckle 12 is plugged into the first insertion hole 5. The first buckle 12 passes through the first insertion hole 5 and extends to the outside of the bracket frame 1. The clamping block 8 and the first buckle 12 are in abutting connection. The advantage is that the other end of the shielding fixture can be tightly fastened by the clamping block 8 and the first buckle 12, ensuring that the sensor cover body 11 and the bracket frame 1 will not separate during the painting process, so that the sensor cover body 11 is always in contact with the bracket frame 1. In addition, the reinforcing rib 9 can also improve the strength of the key stress parts and extend the service life of the fixture.

[0034] Example 3:

[0035] like Figure 3-7 As shown, as an improvement to the previous embodiment, in order to facilitate the alignment and assembly of the fixture and the sensor cover, the second insertion hole 6 and the adapter post 16 are provided with two identical sets. The adapter post 16 and the second insertion hole 6 are connected by insertion. The adapter post 16 passes through the second insertion hole 6 and extends to the outside of the bracket frame 1. The alignment strip 15 and the adapter groove 17 are provided with two identical sets. The two sets of alignment strips 15 and adapter grooves 17 are symmetrically distributed about the vertical center line of the bracket frame 1. The advantage is that the design of the second insertion hole 6 and the adapter post 16, and the alignment strip 15 and the adapter groove 17 can play a positioning role, and the bracket frame 1 will not shift laterally inside the sensor cover body 11, thus ensuring the stable connection between the fixture and the sensor cover.

[0036] Working principle: In use, the operator first aligns the second insertion hole 6 and the first insertion hole 5 on the bracket frame 1 with the adapter post 16 and the first buckle 12 respectively, until the first buckle 12 is fully inserted into the first insertion hole 5 and the adapter post 16 is fully inserted into the second insertion hole 6. At this time, the bracket frame 1 is pressed down further so that the alignment strip 15 is fully inserted into the adapter groove 17, and the snap-fit ​​rod 4 and the inclined part 18 on the snap-fit ​​rod 4 are inserted into the snap-fit ​​groove 14 opened in the second buckle 13. At this time, the installation of the bracket frame 1 and the sensor cover body 11 is completed. The overall operation is simple and the assembly is convenient. Through the one-piece injection molding of the bracket frame 1, the first shielding plate 2, the second shielding plate 3 and the snap-fit ​​rod 4, the assembly of the jig is not required, which reduces the processing cost of a single part and also reduces the installation steps. The first shielding plate 2 and the second shielding plate 3 are both in contact with the sensor. The sensor cover body 11 is designed with a contact connection to ensure that the first shielding plate 2 and the second shielding plate 3 can shield the sensor cover body 11, ensuring that the paint will not spray onto the shielded area during the painting process and will not affect the light transmittance of the sensor cover body 11. One end of the shielding fixture can be tightly pressed against the inside of the snap-fit ​​groove 14 by the inclined part 18 on the upper part of the snap-fit ​​rod 4, and the other end of the shielding fixture can be tightly fastened by the clamping block 8 and the first buckle 12, ensuring that the sensor cover body 11 and the bracket frame 1 will not separate during the painting process, so that the sensor cover body 11 is always in close contact with the bracket frame 1. The design of the second insertion hole 6 and the adapter post 16, the alignment strip 15 and the adapter groove 17 can play a positioning role, preventing the bracket frame 1 from shifting laterally inside the sensor cover body 11, and ensuring a stable connection between the fixture and the sensor cover.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shielding fixture for a sensor cover, comprising a support frame (1) and a sensor cover body (11) that is fitted and mounted in conjunction with the support frame (1), characterized in that: The first shielding plate (2) and the second shielding plate (3) are symmetrically installed on the outside of the bracket frame (1). Each of the first shielding plate (2) and the second shielding plate (3) has a locking rod (4) fixedly installed at the end away from the bracket frame (1). The locking rod (4) has an inclined portion (18) at the end away from the first shielding plate (2) and the second shielding plate (3). The outside of the bracket frame (1) has a first insertion hole (5) and a second insertion hole (6). The outside of the bracket frame (1) has a recessed portion (7). A clamping block (8) is fixedly installed on the side of the bracket frame (1) away from the sensor cover body (11). A reinforcing rib (9) is fixedly installed on the outside of the clamping block (8). (1) A reinforcing strip (10) is fixedly installed on the outer side of the first shielding plate (2) and the second shielding plate (3). A first buckle (12), a second buckle (13) and an adapter post (16) are fixedly installed inside the sensor cover body (11). The second buckle (13) has a snap-fit ​​groove (14) on the side near the bracket frame (1). Multiple alignment strips (15) are distributed in a ring at equal intervals along the inner edge of the sensor cover body (11). An adapter groove (17) that matches the alignment strip (15) is opened at the connection point of the bracket frame (1) near the edge of the sensor cover body (11). An inclined part (18) is provided at the connection point of the snap-fit ​​rod (4) and the snap-fit ​​groove (14).

2. A shielding fixture for a sensor cover according to claim 1, characterized in that: The bracket frame (1), the first shielding plate (2), the second shielding plate (3) and the snap rod (4) are integrally injection molded. The first shielding plate (2) and the second shielding plate (3) have the same structure. The first shielding plate (2) and the second shielding plate (3) are both in contact with the sensor cover body (11).

3. A shielding fixture for a sensor cover according to claim 1, characterized in that: The snap-fit ​​rod (4) is located inside the snap-fit ​​groove (14), and the inclined part (18) is in contact with the snap-fit ​​groove (14).

4. A shielding fixture for a sensor cover according to claim 1, characterized in that: The clamping blocks (8) and reinforcing ribs (9) are provided in four identical sets. The cross-section of each clamping block (8) is in the shape of an "eight". The clamping blocks (8) are located outside the first insertion hole (5). The number of reinforcing ribs (9) is twice that of the clamping blocks (8). The clamping blocks (8) are designed with a bevel. The angle between the clamping blocks (8) and the bracket frame (1) is 60°.

5. A shielding fixture for a sensor cover according to claim 1, characterized in that: The first buckle (12) is plugged into the first insertion hole (5), the first buckle (12) passes through the first insertion hole (5) and extends to the outside of the bracket frame (1), and the clamping block (8) is abutted to the first buckle (12).

6. A shielding fixture for a sensor cover according to claim 1, characterized in that: The second insertion hole (6) and the adapter post (16) are provided with two identical sets. The adapter post (16) and the second insertion hole (6) are connected by insertion. The adapter post (16) passes through the second insertion hole (6) and extends to the outside of the bracket frame (1).

7. A shielding fixture for a sensor cover according to claim 1, characterized in that: The alignment strip (15) and the adapter groove (17) are provided in two identical sets, and the two sets of alignment strip (15) and adapter groove (17) are symmetrically distributed about the vertical center line of the support frame (1).

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