A device for checking the curvature of a door glass and a method for checking the curvature of a door glass

Abstract

The application relates to the technical field of vehicle door glass detection, and discloses a vehicle door glass camber inspection device, which comprises a horizontal reference surface, lifting structures are fixedly connected around the bottom of the horizontal reference surface, and front-to-back opposite sliding structures are fixedly connected to the outer side of the horizontal reference surface. The sliding structure comprises a fixed block one, a controller two is fixedly connected to the middle part of the left end of the fixed block one, the output end of the controller two is fixedly connected to the input end of a rotating shaft three, and a fixed plate is fixedly connected to the middle part of the lower end of the fixed block one. Through cooperation of the horizontal reference surface, the base, the glass placing surface, the height scale and the positioning block, whether the camber of the vehicle door glass meets the requirements can be quickly judged, the efficiency is improved, the cost is reduced, the device is simple to operate, the professional ability requirement of personnel is not high, ordinary workers can master the device in a short time, the problem checking time is shortened, the production efficiency is improved, and the line pass rate is ensured.

Description

Technical Field

[0001] This invention relates to the field of vehicle door glass testing technology, specifically to a vehicle door glass curvature testing device and testing method. Background Technology

[0002] As a key exterior component, the performance and quality of car door glass directly affect the overall quality and performance of the vehicle. With the development of the automotive industry, the overall aesthetics of cars are receiving increasing attention. Therefore, car styling design is crucial in automotive design. However, during actual installation, various deformations and deviations often affect the overall aesthetics of the car. Among the installation factors affecting the overall aesthetics of the vehicle, the outward deviation of the door is a particularly prominent problem, which is where personnel will use a curvature detection device.

[0003] After the door glass is installed, there may be issues such as lifting and lowering jamming, tilting, and interference with the door glass guide channel, which can easily lead to deformation of the guide channel. This will reduce the door's sealing and waterproofing. In addition, the inspection process is relatively complicated, making it difficult for personnel to master the inspection methods. Furthermore, when using a height gauge for inspection, the height gauge cannot be moved quickly. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a vehicle door glass curvature inspection device and method, which solves the problems of door glass jamming, tilting, and interference with the door glass guide channel after installation, which can easily lead to guide channel deformation, reducing the door's sealing and waterproofing, and the complex inspection process making it difficult for personnel to master the inspection method.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a vehicle door glass curvature inspection device, comprising a horizontal reference surface, wherein lifting structures are fixedly connected to the bottom four sides of the horizontal reference surface, and a sliding structure with front and rear opposite directions is fixedly connected to the outer side of the horizontal reference surface;

[0006] The sliding structure includes a fixed block 1, a controller 2 fixedly connected to the middle of the left end of the fixed block 1, the output end of the controller 2 fixedly connected to the input end of the rotating shaft 3, a fixed plate fixedly connected to the middle of the lower end of the fixed block 1, a fixed block 3 fixedly connected to the middle of the rear side of the fixed plate, a fixed block 2 fixedly connected to the middle of the upper end of the fixed block 3, a fixed post provided at the middle of the front side of the fixed block 2, a sliding groove fixedly connected to the middle of the upper end of the fixed block 2, a limit groove provided inside the sliding groove, a slider slidably connected to the upper end of the sliding groove, a rack 2 fixedly connected to the rear side of the lower end of the slider, a gear 2 meshing with the lower end of the rack 2, the fixed block 2 provided at the middle of the front side of the gear 2, a rotating column provided at the middle of the inner side of the fixed block 2, a spiral column threadedly connected to the inner side of the rotating column, a rotating ring fixedly connected to the middle of the front side of the spiral column, a push rod fixedly connected to the middle of the front side of the rotating ring, and a fixed post provided on the outer side of the rotating ring.

[0007] Preferably, the upper end of the horizontal reference surface is provided with a height gauge that is relatively opposite to the front and back, a micro-moving block is provided on the outer side of the upper end of the height gauge, a limiting groove is provided in the middle of the lower end of the micro-moving block, a limiting rod that is relatively opposite to the left and right is provided on the outer side of the limiting groove, an adjusting rod is provided on one side of the limiting rod, and a glass placement surface is fixedly connected to the middle of the upper end of the horizontal reference surface.

[0008] Preferably, the lifting structure includes a support plate, a rack is fixedly connected to the lower center of the support plate, a fixed support column is provided on the outer side of the rack, a spiral disk is provided at the rear center of the fixed support column, a gear is fixedly connected to the rear center of the spiral disk, a rotating shaft is fixedly connected to the rear center of the gear, a rotating shaft is fixedly connected to the rear center of the rotating shaft, a controller is fixedly connected to the rear center of the rotating shaft, a lever is fixedly connected to the right center of the rotating shaft, a lever is fixedly connected to the upper center of the rotating shaft, a locking block is fixedly connected to the upper center of the lever, the gear is engaged at the lower center of the locking block, a ring is fixedly connected to the front center of the gear, the spiral disk is fixedly connected to the front center of the ring, and the rack is engaged at the front center of the spiral disk.

[0009] Preferably, a height gauge is fixedly connected to the middle of the upper end of the slider, and a glass placement surface is provided at the lower end between the two height gauges. The sliders are arranged opposite each other on the outer side of the glass placement surface, and a groove is provided at the middle of the lower end of the slider.

[0010] Preferably, the second gear is provided at the middle of the lower end of the slide groove, the rotating column is provided at the middle of the front side of the second gear, and the third rotating shaft is provided at the middle of the front side of the rotating column.

[0011] Preferably, the fixing block three is provided at the lower middle part of the rotating shaft three, and the gear two is provided at the upper middle part of the fixing block three, with the gear two located below the horizontal reference plane.

[0012] Preferably, the upper end of the horizontal reference surface is fixedly connected with left and right opposing positioning blocks, and the glass placement surface is provided between the two positioning blocks.

[0013] Preferably, a limiting groove is provided at the lower end of the height gauge, the limiting groove is located above the slider, and a measuring rod with opposite sides is provided on one side of the limiting groove.

[0014] Preferably, a base is fixedly connected to the lower middle part of the fixed support column, the base is located below the horizontal reference plane, and the fixed support column is provided at the four corners of the lower end of the horizontal reference plane.

[0015] A method for inspecting the curvature of a car door glass includes the following steps: S1. When personnel need to inspect the curvature of the car door glass, they can use the controller one and the rotating shaft two to drive the rotating shaft one to rotate. When the rotating shaft one rotates, it will simultaneously drive the gear one on the rear side of the ring and the spiral disk to rotate together. Then the spiral disk will drive the rack one to slide up and down, so that it can drive the support plate to lift the horizontal reference surface. At the same time, when the inspector needs to raise and lower the horizontal reference surface, the inspector can rotate the lever on one side of the rotating shaft one, so that the lever block and the locking block at the upper end of the lever can rotate under the operator's operation, and then engage with the gear one, so as to better raise and lower the horizontal reference surface.

[0016] S2. At this point, the personnel can place the door glass to be inspected on the glass placement surface in the middle of the horizontal reference plane. The door glass can be successfully adsorbed by the adsorption pad inside the glass placement surface. Then, the personnel can use the measuring rod on the outer side of the upper end of the height gauge to measure the door glass. At the same time, the personnel can rotate the adjustment rod to adjust the distance between the measuring rod and the door glass, so that the personnel can measure different door glass.

[0017] S3. At the same time, during the surveying process, in order to detect different points on the car door glass, the operator can drive the rotating shaft three to rotate through the drive controller two. Then, the rotating shaft three will drive the push rod, rotating ring, rotating column and gear two to rotate together. Then, when gear two rotates, it will drive rack two to rotate together through meshing connection. At the same time, since rack two and slider are integrally formed, it will drive slider to slide left and right in the limit groove, so as to drive the height gauge to detect different directions of the car door glass.

[0018] S4. Then, the door glass can be fixed on the horizontal reference surface by the positioning blocks set on both sides of the upper end of the horizontal reference surface. Then, the height gauge is used to take points evenly along each edge of the door glass to measure. By measuring the distance from each point to the horizontal reference surface, and comparing it with the technical data, the overall glass forming condition can be judged by the difference of the data at each point, and the curvature of the door glass can be indirectly checked to see if it meets the requirements.

[0019] This invention provides a device and method for testing the curvature of car door glass. It has the following advantages:

[0020] 1. This invention, through the cooperation of a horizontal reference plane, a base, a glass placement surface, a height gauge, and a positioning block, can quickly determine whether the curvature of the car door glass meets the requirements, thereby improving efficiency and reducing costs. At the same time, this device is simple to operate, does not require high professional skills from personnel, and ordinary employees can master it in a short time, thus shortening the troubleshooting time, improving production efficiency, and ensuring the first-pass yield of the production line.

[0021] 2. This invention, through the cooperation of the lifting structure and the sliding structure, facilitates the use of controller one to drive the horizontal reference plane to move up and down quickly when inspecting the car door glass. At the same time, in order to facilitate the use of a height gauge to measure different points on the car door glass, the user can drive controller two to drive the height gauge to move left and right, which can increase the speed of the height gauge to inspect the car door glass. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a side view of the horizontal reference plane structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the main structure of the support plate of the present invention;

[0025] Figure 4 This is a top view of the slider structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the controller structure from two sides according to the present invention;

[0027] Figure 6 This is a schematic diagram of the rack structure from one side of the present invention.

[0028] Figure 7 This is a side view of the sliding structure of the present invention.

[0029] The components include: 1. Horizontal reference plane; 2. Base; 3. Glass placement surface; 4. Height gauge; 5. Positioning block; 6. Lifting structure; 601. Rack one; 602. Spiral disk; 603. Gear one; 604. Controller one; 605. Support plate; 606. Pulley; 607. Rotating shaft one; 608. Pulley lever; 609. Fixed support column; 610. Ring; 611. Rotating shaft two; 612. Locking block; 7. Sliding structure; 701. Slider; 70 2. Rotating column; 703. Fixed column; 704. Rotating ring; 705. Push rod; 706. Rotating shaft three; 707. Fixed block one; 708. Slide groove; 709. Limiting groove; 710. Spiral column; 711. Fixed plate; 712. Fixed block two; 713. Fixed block three; 714. Controller two; 715. Gear two; 716. Rack two; 8. Adjusting rod; 9. Limiting rod; 10. Micro-motion block; 11. Limiting groove block; 12. Measuring rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example:

[0032] Please see the appendix Figure 1 -Appendix Figure 7 This invention provides a door glass curvature inspection device, including a horizontal reference surface 1, lifting structures 6 fixedly connected to the bottom four sides of the horizontal reference surface 1, and sliding structures 7 with front and rear opposite sides fixedly connected to the outer side of the horizontal reference surface 1, which can drive the height ruler 4 to move left and right, so that it can inspect door glass of different specifications.

[0033] The sliding structure 7 includes a fixed block 707. A controller 714 is fixedly connected to the middle of the left end of the fixed block 707, allowing for quick and easy control to drive the rotating shaft 706 to rotate. The output end of the controller 714 is fixedly connected to the input end of the rotating shaft 706. A fixing plate 711 is fixedly connected to the middle of the lower end of the fixed block 707 to fix it and reduce shaking during use. A fixed block 713 is fixedly connected to the middle of the rear side of the fixing plate 711. A fixed block 712 is fixedly connected to the middle of the upper end of the fixed block 713. A fixing post 703 is provided in the middle of the front side of the fixed block 712 to increase support. A sliding groove 708 is fixedly connected to the middle of the upper end of the fixed block 712. To enable sliding, a limiting groove 709 is provided on the inner side of the slide groove 708. A slider 701 is slidably connected to the upper end of the slide groove 708. A rack 716 is fixedly connected to the rear side of the lower end of the slider 701, which can be meshed to drive the gear 715 to rotate. The lower end of the rack 716 is meshed with the gear 715. A fixing block 712 is provided in the middle of the front side of the gear 715. A rotating column 702 is provided in the middle of the inner side of the fixing block 712. A spiral column 710 is threadedly connected to the inner side of the rotating column 702. A rotating ring 704 is fixedly connected to the middle of the front side of the spiral column 710. A push rod 705 is fixedly connected to the middle of the front side of the rotating ring 704, which can be pushed. A fixing column 703 is provided on the outer side of the rotating ring 704.

[0034] A height gauge 4 with front and rear opposite sides is set on the upper end of the horizontal reference surface 1 to facilitate personnel to quickly inspect the door glass. A micro-movement block 10 is set on the outer side of the upper end of the height gauge 4. A limit groove block 11 is set in the middle of the lower end of the micro-movement block 10. A left and right opposite limit rod 9 is set on the outer side of the limit groove block 11. An adjustment rod 8 is set on one side of the limit rod 9. A glass placement surface 3 is fixedly connected to the middle of the upper end of the horizontal reference surface 1. The adsorption pad set inside the glass placement surface 3 reduces the shaking phenomenon of the door glass during inspection, thereby reducing the accuracy of the inspection data.

[0035] The lifting structure 6 includes a support plate 605 that provides support for the horizontal reference plane 1 and the base 2 during lifting. A rack 601 is fixedly connected to the lower center of the support plate 605. A fixed support column 609 is provided on the outer side of the rack 601. A spiral disc 602 is provided at the rear center of the fixed support column 609. A gear 603 is fixedly connected to the rear center of the spiral disc 602. A rotating shaft 607 is fixedly connected to the rear center of the gear 603. A rotating shaft 611 is fixedly connected to the rear center of the rotating shaft 607. A controller 604 is fixedly connected to the middle of the rear side of the 2611. A lever 608 is fixedly connected to the middle of the right end of the rotating shaft 607. A lever 606 is fixedly connected to the middle of the upper end of the rotating shaft 607. A locking block 612 is fixedly connected to the middle of the upper end of the lever 606. A gear 603 is engaged with the middle of the lower end of the locking block 612. A ring 610 is fixedly connected to the middle of the front side of the gear 603. A spiral disk 602 is fixedly connected to the middle of the front side of the ring 610. A rack 601 is engaged with the middle of the front side of the spiral disk 602.

[0036] A height gauge 4 is fixedly connected to the upper middle part of the slider 701. A glass placement surface 3 is provided at the lower end between the two height gauges 4. A slider 701 with front and rear opposite sides is provided on the outer side of the glass placement surface 3. A sliding groove 708 is provided at the lower middle part of the slider 701, which can slide quickly. At the same time, it can detect different door glass when in use.

[0037] A gear 715 is provided at the lower middle of the slide groove 708. A rotating column 702 is provided at the front middle of the gear 715. A rotating shaft 706 is provided at the front middle of the rotating column 702, so that it can drive the gear 715 to rotate.

[0038] A fixing block 713 is provided at the lower middle of the rotating shaft 706, and a gear 715 is provided at the upper middle of the fixing block 713. The gear 715 is located below the horizontal reference plane 1, which facilitates operation by personnel and enables it to drive the height gauge to slide left and right.

[0039] A horizontal reference plane 1 is fixedly connected to a left-right opposing positioning block 5, which can position it. A glass placement surface 3 is provided between the two positioning blocks 5.

[0040] The lower end of the height gauge 4 is provided with a limiting groove 11, which is located above the slider 701. A measuring rod 12 with opposite sides is provided on one side of the limiting groove 11 to facilitate personnel to inspect the door glass.

[0041] A base 2 is fixedly connected to the lower middle part of the fixed support column 609. The base 2 is located below the horizontal reference plane 1. Fixed supports 609 are set at the four corners of the lower end of the horizontal reference plane 1 to reduce swaying.

[0042] A method for testing the curvature of a vehicle door glass using a testing device includes the following steps:

[0043] S1. When personnel need to inspect the curvature of the car door glass, they can use the controller 604 and the rotating shaft 611 to drive the rotating shaft 607 to rotate. When the rotating shaft 607 rotates, it will simultaneously drive the gear 603 and the spiral disk 602 on the rear side of the ring 610 to rotate together. Then the spiral disk 602 will drive the rack 601 to slide up and down, so that it can drive the support plate 605 to lift the horizontal reference surface 1. At the same time, when the inspector needs to raise and lower the horizontal reference surface 1, the inspector can rotate the lever 608 on one side of the rotating shaft 607, so that the lever 606 and the locking block 612 at the upper end of the lever 608 can rotate under the operator's operation, and then engage with the gear 603, so as to better raise and lower the horizontal reference surface 1.

[0044] S2. At this time, the personnel can place the door glass to be inspected on the glass placement surface 3 in the middle of the horizontal reference surface 1. The door glass can be successfully adsorbed by the adsorption pad inside the glass placement surface 3. Then, the personnel can use the measuring rod 12 opened on the outer side of the upper end of the height ruler 4 to measure the door glass. At the same time, the personnel can rotate the adjustment rod 8 to adjust the distance between the measuring rod 12 and the door glass, so that the personnel can measure different door glass.

[0045] S3. Simultaneously, during the surveying process, in order to detect different points on the car door glass, the operator can drive the rotating shaft 706 to rotate via the drive controller 2 714. Subsequently, the rotating shaft 706 will drive the push rod 705, rotating ring 704, rotating column 702 and gear 2 715 to rotate together. Then, when gear 2 715 rotates, it will drive rack 2 716 to rotate together through meshing connection. At the same time, since rack 2 716 and slider 701 are integrally formed, it will drive slider 701 to slide left and right in the limiting groove 709, so as to drive the height gauge 4 to detect different directions of the car door glass.

[0046] S4. Then, the door glass can be fixed on the horizontal reference plane 1 by the positioning blocks 5 set on both sides of the upper end of the horizontal reference plane 1. Then, the height ruler 4 is used to take points evenly along each edge of the door glass to measure. By measuring the distance from each point to the horizontal reference plane 1, and comparing it with the technical data, the overall glass forming condition can be judged by the difference of the data at each point, and the curvature of the door glass can be indirectly checked to see if it meets the requirements.

[0047] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for inspecting the curvature of car door glass, comprising a horizontal reference plane (1), characterized in that, The bottom of the horizontal reference surface (1) is fixedly connected with lifting structures (6) around the perimeter, and the outer side of the horizontal reference surface (1) is fixedly connected with sliding structures (7) that are opposite to each other. The sliding structure (7) includes a fixed block 1 (707), a controller 2 (714) is fixedly connected to the middle of the left end of the fixed block 1 (707), the output end of the controller 2 (714) is fixedly connected to the input end of the rotating shaft 3 (706), a fixed plate (711) is fixedly connected to the middle of the lower end of the fixed block 1 (707), a fixed block 3 (713) is fixedly connected to the middle of the rear side of the fixed plate (711), a fixed block 2 (712) is fixedly connected to the middle of the upper end of the fixed block 3 (713), a fixed column (703) is provided in the middle of the front side of the fixed block 2 (712), a sliding groove (708) is fixedly connected to the middle of the upper end of the fixed block 2 (712), and a limit groove is provided inside the sliding groove (708). (709), a slider (701) is slidably connected to the upper end of the slide groove (708), a rack (716) is fixedly connected to the rear side of the lower end of the slider (701), a gear (715) is meshed with the lower end of the rack (716), a fixing block (712) is provided in the middle of the front side of the gear (715), a rotating column (702) is provided in the middle of the inner side of the fixing block (712), a spiral column (710) is threadedly connected to the inner side of the rotating column (702), a rotating ring (704) is fixedly connected to the middle of the front side of the spiral column (710), a push rod (705) is fixedly connected to the middle of the front side of the rotating ring (704), and a fixing column (703) is provided on the outer side of the rotating ring (704). The horizontal reference plane (1) is provided with a height gauge (4) with front and back opposite each other at the upper end. A micro-movement block (10) is provided on the outer side of the upper end of the height gauge (4). A limit groove block (11) is provided in the middle of the lower end of the micro-movement block (10). A left and right opposite limit rod (9) is provided on the outer side of the limit groove block (11). An adjustment rod (8) is provided on one side of the limit rod (9). A glass placement surface (3) is fixedly connected to the middle of the upper end of the horizontal reference plane (1). The lifting structure (6) includes a support plate (605). A rack (601) is fixedly connected to the lower center of the support plate (605). A fixed support column (609) is provided on the outer side of the rack (601). A spiral disk (602) is provided at the rear center of the fixed support column (609). A gear (603) is fixedly connected to the rear center of the spiral disk (602). A rotating shaft (607) is fixedly connected to the rear center of the gear (603). A rotating shaft (611) is fixedly connected to the rear center of the rotating shaft (607). A control mechanism is fixedly connected to the rear center of the rotating shaft (611). The device is configured such that a lever (608) is fixedly connected to the middle of the right end of the rotating shaft (607), a lever block (606) is fixedly connected to the middle of the upper end of the rotating shaft (607), a locking block (612) is fixedly connected to the middle of the upper end of the lever block (606), and the gear (603) is engaged with the middle of the lower end of the locking block (612). A ring (610) is fixedly connected to the middle of the front side of the gear (603), and a spiral disk (602) is fixedly connected to the middle of the front side of the ring (610). The rack (601) is engaged with the middle of the front side of the spiral disk (602). The upper end of the horizontal reference plane (1) is fixedly connected to the left and right opposite positioning blocks (5), and the glass placement surface (3) is provided between the two positioning blocks (5). The lower end of the height gauge (4) is provided with a limiting groove (11), the limiting groove (11) is located above the slider (701), and a measuring rod (12) is provided on one side of the limiting groove (11) facing each other.

2. The device for inspecting the curvature of car door glass according to claim 1, characterized in that, A height gauge (4) is fixedly connected to the middle of the upper end of the slider (701). A glass placement surface (3) is provided at the lower end between the two height gauges (4). The sliders (701) facing each other are provided on the outer side of the glass placement surface (3). A groove (708) is provided at the middle of the lower end of the slider (701).

3. The device for inspecting the curvature of car door glass according to claim 2, characterized in that, The second gear (715) is provided at the lower middle part of the slide groove (708), the rotating column (702) is provided at the front middle part of the second gear (715), and the rotating shaft (706) is provided at the front middle part of the rotating column (702).

4. The device for inspecting the curvature of car door glass according to claim 3, characterized in that, The fixing block three (713) is provided at the lower middle part of the rotating shaft three (706), and the gear two (715) is provided at the upper middle part of the fixing block three (713). The gear two (715) is located below the horizontal reference plane (1).

5. The device for inspecting the curvature of car door glass according to claim 1, characterized in that, The fixed support (609) is fixedly connected to the base (2) at the middle of its lower end. The base (2) is located below the horizontal reference plane (1). The fixed support (609) is provided at the four corners of the lower end of the horizontal reference plane (1).

6. A method for testing the curvature of a car door glass using a testing device, characterized in that, A door glass curvature testing device according to any one of claims 1-5 includes the following steps: S1. When personnel need to inspect the curvature of the car door glass, they can use the controller (604) and the rotating shaft (611) to drive the rotating shaft (607) to rotate. When the rotating shaft (607) rotates, it will simultaneously drive the gear (603) and the spiral disk (602) on the back of the ring (610) to rotate together. Then the spiral disk (602) will drive the rack (601) to slide up and down, so that it can drive the support plate (605) to lift the horizontal reference surface (1). At the same time, when the inspector needs to raise and lower the horizontal reference surface (1) to fix it, the inspector can rotate the lever (608) on one side of the rotating shaft (607) so that the lever (606) and the locking block (612) at the upper end of the lever (608) can rotate under the operation of the inspector and then engage in the gear (603) to better raise and lower the horizontal reference surface (1). S2. At this time, the personnel can place the car door glass to be tested on the glass placement surface (3) in the middle of the horizontal reference surface (1). The car door glass can be successfully adsorbed by the adsorption pad inside the glass placement surface (3). Then, the personnel can use the measuring rod (12) opened on the outer side of the upper end of the height ruler (4) to measure the car door glass. At the same time, when measuring, the personnel can rotate the adjustment rod (8) to adjust the distance between the measuring rod (12) and the car door glass, so that the personnel can measure different car door glass. S3. At the same time, during the surveying, in order to detect different points of the car door glass, the personnel can drive the rotating shaft three (706) to rotate through the drive controller two (714). Then the rotating shaft three (706) will drive the push rod (705), rotating ring (704), rotating column (702) and gear two (715) to rotate together. Then, when gear two (715) rotates, it will drive rack two (716) to rotate together through meshing connection. At the same time, since rack two (716) and slider (701) are integrally formed, it will drive slider (701) to slide left and right in the limit groove (709) so as to drive the height ruler (4) to detect different directions of the car door glass. S4. Then, the door glass can be fixed on the horizontal reference plane (1) by the positioning blocks (5) set on both sides of the upper end of the horizontal reference plane (1). Then, the height ruler (4) is used to take points evenly along each edge of the door glass to measure. By measuring the distance from each point to the horizontal reference plane (1), and comparing it with the technical data, the overall glass forming condition can be judged by the difference of the data at each point, and the curvature of the door glass can be indirectly checked to see if it meets the requirements.

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