A testing tool for left and right inside rearview mirror base cover
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI UNIDI PRECISION TECH MFG CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]本实用新型的目的在于提供一种左右内后视镜底座罩盖用检具,解决了现有技术中的检测方式多采用人工目视或手持量具进行测量,存在检测效率低、主观误差大、重复性差等问题
[0014]1. This utility model achieves efficient and stable inspection of the base covers of left and right rearview mirrors. The inspection fixture uses a motor-driven bidirectional lead screw to drive two clamping plates to move synchronously in opposite directions or back to back, ensuring uniform force and accurate positioning of the parts during clamping, avoiding deformation or damage due to bias pressure, and improving the reliability and repeatability of clamping. Simultaneously, through the linkage design of the flipping mechanism with the rotating rod, connecting block, and frame, the flipping operation of the parts can be automatically completed during the inspection process without manual intervention, which not only improves the inspection cycle but also reduces the labor intensity and safety risks for operators. Combined with the inspection equipment fixed on the support rod, continuous and complete quality inspection of both sides of the parts can be performed, significantly improving the automation level and overall efficiency of the inspection.
Smart Images

Figure CN224601618U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cover inspection tools, and in particular relates to an inspection tool for the base cover of left and right interior rearview mirrors. Background Technology
[0002] In the automotive manufacturing industry, the rearview mirror base covers, as an important component of interior parts, not only affect the overall appearance quality of the vehicle but also serve to protect the internal structure and enhance the driving experience. As consumers' demands for automotive appearance and assembly precision continue to rise, the dimensional accuracy, surface quality, and assembly consistency of these covers have become key indicators for quality control. Therefore, rigorous testing must be conducted on each batch and even each individual part during the production process to ensure compliance with design specifications.
[0003] Traditional inspection methods often rely on manual visual inspection or handheld measuring tools, which suffer from low efficiency, large subjective errors, and poor repeatability. Especially for cover-type parts that require inspection of both sides, manual flipping is not only time-consuming and labor-intensive but also prone to scratches or positioning deviations due to improper operation, affecting the accuracy of the inspection results. Therefore, we provide a gauge for left and right rearview mirror base covers to solve the aforementioned problems. Utility Model Content
[0004] The purpose of this invention is to provide a gauge for the base cover of left and right interior rearview mirrors, which solves the problems of low inspection efficiency, large subjective error, and poor repeatability in existing inspection methods that mostly rely on manual visual inspection or handheld measuring tools. Especially for cover-type parts that need to be inspected on both sides, manual flipping is not only time-consuming and laborious, but also prone to scratches or positioning deviations due to improper operation, affecting the accuracy of the inspection results.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.
[0006] This utility model is a gauge for a base cover of left and right interior rearview mirrors, comprising: Workbench; A support rod, which is fixedly connected to the upper end of the workbench; The testing equipment is fixedly connected to the upper inner wall of the support rod; Two support blocks, both of which are fixedly connected to the upper end of the worktable; A rotating rod, which is rotatably connected within two support blocks; The first connecting block is fixedly connected to the circumferential surface of the rotating rod; A frame, which is fixedly connected to one side of the first connecting block; Two clips, both of which are located within the frame; A bidirectional lead screw, which is rotatably connected within a frame, and both clamping plates are threadedly connected to the circumferential surface of the bidirectional lead screw via nuts; A limiting rod is fixedly connected between the inner walls of both sides of the frame, and two clips are sleeved on the surface of the limiting rod. The motor is fixedly connected to one side of the frame, and the output shaft of the motor is fixed to a bidirectional lead screw; A flipping mechanism is located at the top of the worktable and drives the frame to flip, thereby flipping the parts.
[0007] The present invention is further configured such that the flipping mechanism includes a slide rail, a rack, a second connecting block, a hydraulic rod, and a gear. The hydraulic rod is fixedly connected to the upper end of the worktable, the second connecting block is fixedly connected to the extended end of the hydraulic rod, the slide rail is fixedly connected to the upper end of the worktable, the rack is slidably connected inside the slide rail, one side of the second connecting block is fixed to the rack, and the gear is fixedly connected to the circumferential surface of the rotating rod. The gear and the rack mesh with each other.
[0008] The present invention is further configured such that a protective plate is fixedly connected to one side of the workbench, a support column is fixedly connected to the upper end of the workbench, the support column is connected to the protective plate by bolts, and the rack and gear are both located inside the protective plate.
[0009] The present invention is further configured such that a baffle is fixedly connected to the upper end of the protective plate, and two second limiting rods are fixedly connected to one side end of the baffle. A circular groove is formed on the circumferential surface of the gear, and the second limiting rods are located in the circular groove.
[0010] The present invention is further configured such that two first limiting rods are fixedly connected to one inner wall of the frame, and both the limiting rods and the bidirectional lead screw pass through the two first limiting rods.
[0011] The present invention is further configured such that a groove is provided at the upper end of the workbench, and a gasket is provided in the groove.
[0012] The present invention is further configured such that each of the two support blocks is provided with a bearing, and the rotating rod is fixed to the bearing to maintain a self-lubricating effect.
[0013] The present invention has the following beneficial effects.
[0014] 1. This utility model achieves efficient and stable inspection of the base covers of left and right rearview mirrors. The inspection fixture uses a motor-driven bidirectional lead screw to drive two clamping plates to move synchronously in opposite directions or back to back, ensuring uniform force and accurate positioning of the parts during clamping, avoiding deformation or damage due to bias pressure, and improving the reliability and repeatability of clamping. Simultaneously, through the linkage design of the flipping mechanism with the rotating rod, connecting block, and frame, the flipping operation of the parts can be automatically completed during the inspection process without manual intervention, which not only improves the inspection cycle but also reduces the labor intensity and safety risks for operators. Combined with the inspection equipment fixed on the support rod, continuous and complete quality inspection of both sides of the parts can be performed, significantly improving the automation level and overall efficiency of the inspection.
[0015] 2. This utility model, by setting up a tilting drive mechanism composed of a hydraulic rod, rack, and gear, and placing it inside a protective plate, effectively prevents dust and oil from entering, extending the service life of the transmission components. The addition of a baffle and a limit rod, along with the annular groove on the gear, achieves precise constraint on the axial movement of the gear, ensuring smooth and reliable tilting action. The support block uses a self-lubricating bearing to support the rotating rod, reducing friction and wear and improving rotational smoothness. The grooves and replaceable shims on the working drawing facilitate fine-tuning of the height during assembly, ensuring the coaxiality and meshing accuracy of each moving part. The overall structure is rationally laid out and highly integrated, ensuring both detection accuracy and equipment durability while facilitating maintenance and adjustment, making it suitable for online quality control in mass production environments. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0017] Figure 1 A first-view perspective perspective view of a gauge for a left and right interior rearview mirror base cover; Figure 2 A second-view perspective perspective view of a gauge for a left and right interior rearview mirror base cover; Figure 3 A type of gauge for left and right interior rearview mirror base covers Figure 2 A magnified view of a portion of point A in the middle; Figure 4 This is a third-view perspective view of a gauge for a left and right interior rearview mirror base cover.
[0018] In the attached diagram: 1. Workbench; 2. Support rod; 3. Support block; 4. Rotating rod; 5. First connecting block; 6. Frame; 7. Clamping plate; 8. Motor; 9. Protective plate; 10. Support column; 11. Baffle; 12. Two-way lead screw; 13. First limiting rod; 14. Slide rail; 15. Rack; 16. Second connecting block; 17. Hydraulic rod; 18. Gear; 19. Circular groove; 20. Second limiting rod; 21. Detection equipment; 22. Groove; 23. Gasket. Detailed Implementation
[0019] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example
[0020] Please see Figures 1-4 The present invention provides the following technical solution: A tooling for inspecting the base covers of left and right interior rearview mirrors, comprising: Workbench 1; Support rod 2 is fixedly connected to the upper end of workbench 1; The testing device 21 is fixedly connected to the upper inner wall of the support rod 2; Two support blocks 3 are fixedly connected to the upper end of the workbench 1; Rotating rod 4 is rotatably connected to two support blocks 3; The first connecting block 5 is fixedly connected to the circumferential surface of the rotating rod 4; Frame 6 is fixedly connected to one side of the first connecting block 5; Two clips 7, both clips 7 are located within the frame 6; The double-acting lead screw 12 is rotatably connected to the frame 6, and the two clamping plates 7 are both threadedly connected to the circumferential surface of the double-acting lead screw 12 by nuts. The limiting rod is fixedly connected between the inner walls of both sides of the frame 6, and two clips 7 are sleeved on the surface of the limiting rod. Motor 8 is fixedly connected to one side of frame 6, and the output shaft of motor 8 is fixed to bidirectional lead screw 12; The flipping mechanism is located at the top of the worktable 1 and drives the frame 6 to flip, thereby flipping the parts.
[0021] In a specific embodiment of this utility model, the operator places the left and right interior rearview mirror base covers to be inspected between two clips 7 within the frame 6. A tool for inspecting left and right interior rearview mirror base covers is characterized by comprising: Workbench 1; Support rod 2 is fixedly connected to the upper end of workbench 1; The testing device 21 is fixedly connected to the upper inner wall of the support rod 2; Two support blocks 3 are fixedly connected to the upper end of the workbench 1; Rotating rod 4 is rotatably connected to two support blocks 3; The first connecting block 5 is fixedly connected to the circumferential surface of the rotating rod 4; Frame 6 is fixedly connected to one side of the first connecting block 5; Two clips 7, both clips 7 are located within the frame 6; The double-acting lead screw 12 is rotatably connected to the frame 6, and the two clamping plates 7 are both threadedly connected to the circumferential surface of the double-acting lead screw 12 by nuts. The limiting rod is fixedly connected between the inner walls of both sides of the frame 6, and two clips 7 are sleeved on the surface of the limiting rod. Motor 8 is fixedly connected to one side of frame 6, and the output shaft of motor 8 is fixed to bidirectional lead screw 12; A flipping mechanism, located at the top of the worktable 1, drives the frame 6 to flip, thus flipping the part. The bidirectional lead screw 12 rotates. Because the threads of the bidirectional lead screw 12 are designed with opposite directions at both ends, two clamping plates 7 are respectively engaged with the two ends of the lead screw's threads via nuts. The clamping plates 7 are also simultaneously fitted onto the limiting rod, restricting its rotation. Therefore, the rotation of the bidirectional lead screw 12 drives the two clamping plates 7 to move synchronously towards each other, achieving rapid, centered clamping of the part, or releasing it by moving them away from each other. After clamping, the flipping mechanism is triggered, causing the rotating rod 4 to rotate smoothly within the bearings of the two support blocks 3. Since the first connecting block 5 is fixed to the rotating rod 4, and the frame 6 is fixedly connected to the first connecting block 5, the entire clamping system, along with the part, flips around the axis of the rotating rod 4. When flipped to a set angle, the back of the part is precisely rotated into the detection range of the detection device 21, achieving automatic flipping without manual intervention. After frame 6 is flipped into position, the inspection device 21, fixed to the inner wall of support rod 2, performs high-precision dimensional, contour, or appearance defect inspection on the cover surface and transmits the results to the control system in real time. When a double-sided inspection process is completed, motor 8 reverses, and bidirectional lead screw 12 drives the two clamping plates 7 to retract, releasing the part. The operator takes out the inspected part and puts in a new part, repeating the above steps to achieve continuous, efficient, and traceable automated inspection operations. The bidirectional lead screw 12 enables the two clamping plates 7 to be synchronously aligned and clamped, ensuring stable clamping and rapid response, effectively protecting the surface of the part and improving positioning accuracy. Combined with the motor 8 drive and the flipping mechanism, the automatic clamping, flipping, and double-sided inspection of the part are integrated into one operation. The entire process is highly automated, significantly improving inspection efficiency and consistency, and reducing manual labor intensity and the risk of misoperation.
[0022] Please refer to the details. Figures 1-4 The flipping mechanism includes a slide rail 14, a rack 15, a second connecting block 16, a hydraulic rod 17, and a gear 18. The hydraulic rod 17 is fixedly connected to the upper end of the worktable 1, the second connecting block 16 is fixedly connected to the extended end of the hydraulic rod 17, the slide rail 14 is fixedly connected to the upper end of the worktable 1, the rack 15 is slidably connected inside the slide rail 14, one side of the second connecting block 16 is fixed to the rack 15, and the gear 18 is fixedly connected to the circumferential surface of the rotating rod 4. The gear 18 and the rack 15 mesh with each other.
[0023] In this embodiment: when the hydraulic rod 17 is activated and its extended end is pushed, it drives the second connecting block 16 to move axially. Since the second connecting block 16 is fixedly connected to the rack 15, and the rack 15 can only move linearly under the guidance of the slide rail 14, the rack 15 slides horizontally accordingly. The rack 15 meshes with the gear 18 fixed on the rotating rod 4, converting the linear motion into the rotational motion of the gear 18, thereby driving the rotating rod 4 to rotate, realizing the overall flipping of the first connecting block 5 connected to it and the frame 6. The transmission is stable and the response is rapid, enabling a precise 180° flip to ensure that the back of the part is accurately aligned with the testing equipment 21, meeting the requirements of double-sided testing.
[0024] Please refer to the details. Figures 1-4 A protective plate 9 is fixedly connected to one side of the workbench 1, and a support column 10 is fixedly connected to the upper end of the workbench 1. The support column 10 is connected to the protective plate 9 by bolts, and the rack 15 and gear 18 are both located inside the protective plate 9.
[0025] In this embodiment, the protective plate 9 encloses and protects the transmission components. The protective plate 9 is securely connected to the workbench 1 via the support column 10 and is fixed with bolts for easy detachment, which facilitates later maintenance and repair. The core transmission components such as the rack 15 and gear 18 are all housed inside the protective plate 9, effectively preventing external dust, oil stains or accidental contact by operators from interfering with or damaging the transmission system. At the same time, it reduces operating noise and improves the cleanliness and safety of the overall equipment.
[0026] Please refer to the details. Figures 1-4 A baffle 11 is fixedly connected to the upper end of the protective plate 9. Two second limiting rods 20 are fixedly connected to one side end of the baffle 11. A circular groove 19 is opened on the circumferential surface of the gear 18, and the second limiting rods 20 are located in the circular groove 19.
[0027] In this embodiment, the axial limiting structure formed by the baffle 11, the second limiting rod 20 and the annular groove 19 has two second limiting rods 20 extending from the baffle 11 and embedded in the annular groove 19 on the edge of the gear 18, forming a radially enclosing and axially constraining guide structure. When the gear 18 rotates with the rotating rod 4, the second limiting rod 20 slides in the annular groove 19, effectively limiting the axial displacement of the gear, ensuring that it always maintains a good meshing state with the rack 15, avoiding tooth disengagement or transmission jamming, and improving the reliability and accuracy of the flipping action.
[0028] Please refer to the details. Figures 1-4 Two first limiting rods 13 are fixedly connected to the inner wall of one side of the frame 6. The limiting rods and the bidirectional screw 12 both pass through the two first limiting rods 13.
[0029] In this embodiment: the first limiting rod 13 is used to guide the linear movement of the clamping piece 7. The bidirectional lead screw 12 is threadedly connected to both clamping pieces 7 and passes through both first limiting rods 13. The first limiting rods 13 serve as guides and prevent rotation: on the one hand, they restrict the clamping piece 7 to move only along the axis of the limiting rod, preventing it from rotating with the lead screw; on the other hand, they ensure that the two clamping pieces move synchronously and smoothly towards or away from each other, achieving centering and clamping, and avoiding force deviation on the part. This structure enhances the stability of clamping and the repeatability of positioning accuracy, and protects the surface of the part from damage.
[0030] Please refer to the details. Figures 1-4 The upper end of the workbench 1 is provided with a groove 22, and a gasket 23 is provided in the groove 22.
[0031] In this embodiment: the groove 22 is used to embed the gasket 23. The gasket 23 can be made of metal or engineering plastic of different thicknesses. By changing the thickness of the gasket, the installation height of components such as the support block 3 and the hydraulic rod 17 can be finely adjusted, thereby compensating for processing or assembly errors and ensuring the coaxiality and meshing accuracy of transmission components such as the rotating rod 4, the gear 18, and the rack 15.
[0032] Please refer to the details. Figures 1-4 Each of the two support blocks 3 is equipped with a bearing, and the rotating rod 4 is fixed to the bearing to maintain self-lubrication.
[0033] In this embodiment, a precision bearing is installed inside the support block 3. The rotating rod 4 passes through the bearing and is interference-fitted or keyed to it, achieving low-friction, high-precision rotary support. The bearings used are preferably self-lubricating, requiring no frequent lubrication maintenance and maintaining good lubrication during long-term operation, reducing wear and extending equipment lifespan. This design significantly reduces the starting torque and running resistance of the tilting mechanism, making hydraulic drive more labor-saving and faster-responding, while improving the control accuracy of the tilting angle, ensuring accurate and consistent positioning for each tilt.
[0034] The working principle of this utility model is as follows: The motor 8 is started, driving the bidirectional lead screw 12 to rotate. Due to the design features of the bidirectional lead screw 12, the two clamping plates 7 are engaged with the two ends of the lead screw via nuts and reverse threads, achieving synchronous or opposite movements. Thus, when the motor 8 rotates forward, the clamping plates 7 stably clamp the part; when rotating in reverse, the part is released. After clamping is complete, the hydraulic rod 17 is activated. The hydraulic rod pushes its extended end, causing the second connecting block 16 and the rack 15 fixed thereto to slide within the slide rail 14. Since the rack 15 meshes with the gear 18 fixed on the rotating rod 4, the linear motion of the rack is converted into the rotation of the gear, thereby driving the entire frame 6, along with the clamped part, to rotate around the axis of the rotating rod 4. This allows for the automatic rotation of the part from one side to the other. After the frame 6 is rotated into position, the inspection device 21 begins to inspect the cover surface for dimensions, contours, or defects, and feeds the data back to the control system for analysis and recording. If further inspection of the other side is required, step 3 is repeated to rotate the part back to its original position.
[0035] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.
[0036] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.
Claims
1. A gauge for the base cover of left and right interior rearview mirrors, characterized in that: include: Workbench (1); Support rod (2), which is fixedly connected to the upper end of the workbench (1); The testing device (21) is fixedly connected to the upper inner wall of the support rod (2); Two support blocks (3) are fixedly connected to the upper end of the workbench (1); Rotating rod (4), which is rotatably connected to two support blocks (3); The first connecting block (5) is fixedly connected to the circumferential surface of the rotating rod (4); The frame (6) is fixedly connected to one side of the first connecting block (5); Two clips (7), both of which are located within the frame (6); A bidirectional lead screw (12) is rotatably connected to the frame (6), and the two clamps (7) are threadedly connected to the circumferential surface of the bidirectional lead screw (12) by nuts; The limiting rod is fixedly connected between the inner walls of both sides of the frame (6), and the two clips (7) are sleeved on the surface of the limiting rod. Motor (8), the motor (8) is fixedly connected to one side of the frame (6), and the output shaft of the motor (8) is fixed to the bidirectional lead screw (12); The flipping mechanism is located at the upper end of the workbench (1) and drives the frame (6) to flip, thereby turning the parts over.
2. The inspection tool for the base cover of the left and right interior rearview mirrors according to claim 1, characterized in that: The flipping mechanism includes a slide rail (14), a rack (15), a second connecting block (16), a hydraulic rod (17), and a gear (18). The hydraulic rod (17) is fixedly connected to the upper end of the worktable (1), the second connecting block (16) is fixedly connected to the extended end of the hydraulic rod (17), the slide rail (14) is fixedly connected to the upper end of the worktable (1), the rack (15) is slidably connected to the slide rail (14), one side of the second connecting block (16) is fixed to the rack (15), and the gear (18) is fixedly connected to the circumferential surface of the rotating rod (4). The gear (18) and the rack (15) mesh with each other.
3. A gauge for the base cover of left and right interior rearview mirrors according to claim 2, characterized in that: A protective plate (9) is fixedly connected to one side of the workbench (1), and a support column (10) is fixedly connected to the upper end of the workbench (1). The support column (10) and the protective plate (9) are connected by bolts. The rack (15) and the gear (18) are both located inside the protective plate (9).
4. A gauge for the base cover of left and right interior rearview mirrors according to claim 3, characterized in that: The upper end of the protective plate (9) is fixedly connected to a baffle (11), and two second limiting rods (20) are fixedly connected to one side end of the baffle (11). The circumferential surface of the gear (18) is provided with an annular groove (19), and the second limiting rod (20) is located in the annular groove (19).
5. A gauge for the base cover of left and right interior rearview mirrors according to claim 4, characterized in that: Two first limiting rods (13) are fixedly connected to one side of the inner wall of the frame (6), and the limiting rods and the bidirectional screw (12) both pass through the two first limiting rods (13).
6. A gauge for the base cover of left and right interior rearview mirrors according to claim 5, characterized in that: The upper end of the workbench (1) is provided with a groove (22), and a gasket (23) is provided in the groove (22).
7. A gauge for the base cover of left and right interior rearview mirrors according to claim 6, characterized in that: Each of the two support blocks (3) is equipped with a bearing, and the rotating rod (4) is fixed to the bearing to maintain a self-lubricating effect.