Automobile rear side wall outer plate appearance flatness detection equipment and detection method

Abstract

The invention discloses automobile rear side wall outer plate appearance flatness detection equipment and a detection method, and relates to the technical field of automobile part manufacturing. The automobile rear side wall outer plate appearance flatness detection equipment comprises a measuring point track, the bottom of the measuring point track is fixedly connected with two fixed suction cups, and the tops of the two fixed suction cups are fixedly connected with first pull rings. According to the automobile rear side wall outer plate appearance flatness detection equipment and detection method, alcohol is sprayed on a thin cotton brush, then a pull handle is pulled leftwards to enable a connecting plate to push a first rotating pipe to move leftwards, and a rotating chassis rotates through the first rotating pipe and a second rotating pipe; the thin cotton brush at the bottom of the rotating chassis brushes the outer plate of the rear side wall of the automobile, alcohol sprayed on the thin cotton brush adsorbs oil stains on the surface of a metal plate, the oil stains are prevented from interfering with reflection of laser, and the detection accuracy of the laser flatness detection instrument is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts manufacturing, in particular to an apparatus and method for detecting the appearance flatness of an automobile rear side outer panel. Background Art

[0002] The flatness inspection of the rear side panels of automobiles can promptly detect appearance defects. This helps to ensure the overall appearance quality of the automobile and improve consumer satisfaction with the appearance of the automobile. It can also control product quality during the production process, avoid assembly difficulties caused by flatness issues, and ensure close fit and good assembly accuracy between automobile parts. Patent application number CN202311798044.9 discloses a plate surface flatness detection device, which relates to the application field of plate detection equipment and proposes the following scheme, including a machine body and a first slide bar and a second slide bar symmetrically fixedly connected to the inside of the machine body, and also includes: a first movable frame, the first movable frame is movably sleeved on the first slide bar, and the first movable frame is provided with a driving mechanism; a transverse detection mechanism, the transverse detection mechanism is installed inside the machine body, one side of the transverse detection mechanism is connected to the driving mechanism, the transverse detection mechanism includes a reciprocating screw rotatably connected to the first movable frame, a connecting block threadedly connected to the reciprocating screw, and a laser detector fixedly installed on the connecting block, and the driving mechanism drives the reciprocating screw to rotate; The rear side outer panels of automobiles are often tested for flatness using a laser level tester. The rear side outer panels of automobiles are cut and then stamped. The surface is easily contaminated with oil during the processing process. When the oil is detected by laser, the oil will interfere with the reflection of the laser, affecting the final test results and causing inaccurate test results. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides an apparatus and method for detecting the appearance flatness of the rear side outer panel of an automobile, so as to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A vehicle rear side outer panel appearance flatness detection device includes a measuring point track, two fixed suction cups are fixedly connected to the bottom of the measuring point track, the tops of the two fixed suction cups are fixedly connected to a first pulling ring and movably connected to the inside of the measuring point track, a laser detection head is provided inside the first pulling ring, and the laser detection head is movably connected to the inside of the measuring point track via two rollers, a pulling handle is fixedly connected to the front of the laser detection head, a detection end is fixedly connected to the top of the laser detection head via a connecting line, a brushing mechanism is movably connected to the left side of the laser detection head, and a vibration mechanism is fixedly connected to the outer wall of the brushing mechanism; The brushing mechanism includes: a first rotating tube, which is arranged on the left side of the laser detection head; a second rotating tube, the second rotating tube being movably connected to the bottom of the first rotating tube; A rotating chassis, the rotating chassis being fixedly connected to the bottom of the second rotating tube; A thin cotton brush is fixedly connected to the bottom of the rotating chassis.

[0005] Preferably, a connecting plate is fixedly connected to the left side of the laser detection head, and the first rotating tube is movably connected to the inside of the connecting plate through a bearing, an inner tooth pattern is provided inside the measuring point track, an outer tooth pattern is provided on the outer wall of the first rotating tube, and the inner tooth pattern and the outer tooth pattern are engaged with each other.

[0006] Preferably, an inner spring is fixedly connected to the interior of the second rotating tube, and the top of the inner spring is fixedly connected to the first rotating tube.

[0007] Preferably, a spiral plate is fixedly connected to the interior of the first rotating tube, and a soft cotton brush is fixedly connected to the outer wall of the rotating chassis.

[0008] Preferably, the vibration mechanism includes a fixed ring, which is movably connected to the outer wall of the second rotating tube, and the fixed ring is rotatably connected to the second rotating tube through a bearing. The bottom of the fixed ring is fixedly connected to an outer spring, the bottom of the outer spring is fixedly connected to a movable ring, the top of the movable ring is fixedly connected to a connecting rod, and the connecting rod passes through the fixed ring and is movably connected to the inside of the connecting plate, the top of the connecting rod is located at the top of the connecting plate and is fixedly connected to a second pull ring, the bottom of the outer spring is fixedly connected to a supporting foot, and the top of the rotating chassis is fixedly connected to an inner oblique block.

[0009] Preferably, when the second rotating tube rotates, since the connecting rod is restricted by the connecting plate, the movable ring and the fixed ring cannot be passively driven to rotate, which causes relative rotation between the second rotating tube and the movable ring.

[0010] Preferably, a partition plate is fixedly connected to the outer wall of the movable ring, and an opening is provided at the bottom of the rotating chassis.

[0011] A detection method for detecting the appearance flatness of the rear side outer panel of an automobile: S1. Spray alcohol onto a thin cotton brush and attach the two fixed suction cups to the rear side panel of the vehicle to be tested. S2. Hold the detection end and pull the handle to the left to move the laser detection head a certain distance, then stop and observe the detection end to obtain the flatness test result. S3. Hold the detection end and pull the handle to the left again to move the laser detection head to the same distance. Then stop and observe the detection end to get the flatness test result. You can perform multiple tests according to the test requirements and take the average value of multiple tests as the final flatness test value. S4. Pull the second pull ring upward and pull the handle to the right to return the laser detection head to its initial position. Then pull the first pull ring to remove the fixed suction cup from the rear side outer panel of the vehicle to complete the flatness test.

[0012] The present invention provides a device and method for detecting the smoothness of the exterior of the rear side panels of an automobile. The device and method have the following beneficial effects: 1. This is a vehicle rear side outer panel appearance flatness detection equipment and detection method. By spraying alcohol on a thin cotton brush and then pulling the handle to the left, the connecting plate will push the first rotating tube to the left. The first rotating tube and the second rotating tube will cause the rotating chassis to rotate, and the thin cotton brush at the bottom of the rotating chassis will brush the vehicle rear side outer panel. The alcohol sprayed on the thin cotton brush will absorb the oil on the surface of the metal plate to prevent the oil from interfering with the reflection of the laser, thereby improving the accuracy of the laser flatness detection instrument.

[0013] 2. This kind of vehicle rear side outer panel appearance flatness detection equipment and detection method, through the rotation of the inner oblique block, the supporting leg will be lifted up through the inclined surface, and then the supporting leg will hit the rotating chassis at the bottom, and the impact of the rotating chassis will cause the rear side outer panel of the vehicle to shake, so that some small metal slag adhered to the surface due to stamping will be loosened, and at the same time, the gap between the rotating chassis and the partition plate will suddenly decrease, so that the openings at the bottom of the rotating chassis will discharge air to blow the loosened metal slag outward, so as to blow the metal debris away from the detection path of the pull handle, so as to avoid the metal debris from affecting the detection results of the laser detection instrument.

[0014] 3. This kind of vehicle rear side outer panel appearance flatness detection equipment and detection method, through the impact of the propping up legs to impact the rotating chassis, the rotating chassis and the vehicle rear side outer panel will squeeze the thin cotton brush, so that some of the alcohol inside the thin cotton brush will be squeezed out, so as to achieve the effect of slowly releasing the alcohol at the bottom of the thin cotton brush, which can enhance the continuous cleaning effect of the thin cotton brush and increase the accuracy of continuous measurement, thereby improving the accuracy of the final detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A; Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle B part; Figure 4 This is a schematic diagram of the back three-dimensional structure of the present invention; Figure 5 This is a bottom-up perspective structural diagram of the present invention; Figure 6 This is a schematic diagram of the rotating chassis structure of the present invention; Figure 7 for Figure 6 Schematic diagram of cross-section structure; Figure 8 This is a schematic structural diagram of the thin cotton brush of the present invention; Figure 9 It is a schematic diagram of the inner oblique block structure of the present invention.

[0016] In the figure: 1. Measuring point track; 2. Fixed suction cup; 3. First pulling ring; 4. Laser detection head; 5. Pulling handle; 6. Detection end; 7. Brushing mechanism; 701. First rotating tube; 702. Second rotating tube; 703. Rotating chassis; 704. Thin cotton brush; 705. Inner tooth pattern; 706. Outer tooth pattern; 707. Inner spring; 708. Spiral plate; 709. Soft cotton brush; 710. Connecting plate; 8. Vibrating mechanism; 801. Fixed ring; 802. Movable ring; 803. Outer spring; 804. Supporting foot; 805. Inner oblique block; 806. Connecting rod; 807. Second pulling ring; 808. Partition plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] Example 1: Please refer to Figure 1-8 The present invention provides a technical solution: a vehicle rear side outer panel appearance flatness detection device, comprising a measuring point track 1, two fixed suction cups 2 are fixedly connected to the bottom of the measuring point track 1, the tops of the two fixed suction cups 2 are fixedly connected to a first pulling ring 3 and movably connected to the inside of the measuring point track 1, a laser detection head 4 is provided inside the first pulling ring 3, and the laser detection head 4 is movably connected to the inside of the measuring point track 1 through two rollers, a pulling handle 5 is fixedly connected to the front of the laser detection head 4, a detection end 6 is fixedly connected to the top of the laser detection head 4 through a connecting line, a brushing mechanism 7 is movably connected to the left side of the laser detection head 4, and a vibration mechanism 8 is fixedly connected to the outer wall of the brushing mechanism 7; The brushing mechanism 7 comprises: A first rotating tube 701 is provided on the left side of the laser detection head 4; A second rotating tube 702, which is movably connected to the bottom of the first rotating tube 701; A rotating chassis 703, which is fixedly connected to the bottom of the second rotating tube 702; The thin cotton brush 704 is fixedly connected to the bottom of the rotating chassis 703.

[0020] Spray alcohol on the thin cotton brush 704, and let the fixed suction cup 2 be adsorbed on the rear side outer panel of the car, and pull the handle 5 to perform flatness detection.

[0021] A connecting plate 710 is fixedly connected to the left side of the laser detection head 4, and the first rotating tube 701 is movably connected to the inside of the connecting plate 710 through a bearing. An inner tooth pattern 705 is provided inside the measuring point track 1, and an outer tooth pattern 706 is provided on the outer wall of the first rotating tube 701, and the inner tooth pattern 705 and the outer tooth pattern 706 are engaged with each other.

[0022] Pulling the handle 5 to the left will cause the laser detection head 4 to move to the left as well, and the first rotating tube 701 will be pushed to the left through the connecting plate 710, so that the first rotating tube 701 will rotate due to the meshing of the inner tooth pattern 705 and the outer tooth pattern 706. The rotating chassis 703 will rotate through the first rotating tube 701 and the second rotating tube 702, so that the thin cotton brush 704 at the bottom of the rotating chassis 703 will brush the outer panel of the rear side of the car. The alcohol sprayed on the thin cotton brush 704 will absorb the oil stains on the surface of the metal plate to prevent the oil stains from interfering with the reflection of the laser.

[0023] An inner spring 707 is fixedly connected to the interior of the second rotating tube 702 , and the top of the inner spring 707 is fixedly connected to the first rotating tube 701 .

[0024] When the fixed suction cup 2 is adsorbed onto the rear side outer panel of the car, the rotating chassis 703 will be pressed against the rear side outer panel of the car, causing the inner spring 707 to be compressed. This will allow the inner spring 707 to maintain the thrust on the second rotating tube 702, and then allow the thin cotton brush 704 at the bottom of the rotating chassis 703 to be close to the rear side outer panel of the car, thereby ensuring better cleaning ability for oil stains.

[0025] A spiral plate 708 is fixedly connected to the interior of the first rotating tube 701 , and a soft cotton brush 709 is fixedly connected to the outer wall of the rotating chassis 703 .

[0026] Pulling the pulling handle 5 causes the first rotating tube 701 to rotate under the action of the meshing of the inner tooth pattern 705 and the outer tooth pattern 706, and then the spiral plate 708 produces the effect of pushing the air, so that a downward blowing airflow is generated through the interior of the first rotating tube 701 and the second rotating tube 702, and the rotating chassis 703 drives the soft cotton brush 709 to rotate together, which will also disturb the airflow near the rear side outer panel of the car, so that the alcohol on the surface of the rear side outer panel of the car dries quickly, avoiding the alcohol from interfering with the detection of the pulling handle 5. At the same time, the soft cotton brush 709 will brush the bottom surface of the pulling handle 5 driven by the rotating rotating chassis 703 to prevent metal debris from being contaminated to the bottom of the pulling handle 5 and hindering the laser propagation at the bottom of the pulling handle 5.

[0027] Example 2: Please refer to Figure 1-9 Based on the first embodiment, the present invention provides a technical solution: The vibration mechanism 8 includes a fixed ring 801, which is movably connected to the outer wall of the second rotating tube 702. The fixed ring 801 is rotatably connected to the second rotating tube 702 through a bearing. The bottom of the fixed ring 801 is fixedly connected to an outer spring 803, the bottom of the outer spring 803 is fixedly connected to a movable ring 802, the top of the movable ring 802 is fixedly connected to a connecting rod 806, and the connecting rod 806 passes through the fixed ring 801 and is movably connected to the inside of the connecting plate 710. The top of the connecting rod 806 is located at the top of the connecting plate 710 and is fixedly connected to a second pull ring 807. The bottom of the outer spring 803 is fixedly connected to a supporting foot 804, and the top of the rotating chassis 703 is fixedly connected to an inner inclined block 805.

[0028] When the second rotating tube 702 rotates, the connecting rod 806 is restricted by the connecting plate 710 , and the movable ring 802 and the fixed ring 801 cannot be passively driven to rotate, resulting in relative rotation between the second rotating tube 702 and the movable ring 802 .

[0029] When the second rotating tube 702 is driven by the first rotating tube 701 to rotate, the rotating chassis 703 at the bottom rotates. Since the connecting rod 806 is restricted by the connecting plate 710, the movable ring 802 and the fixed ring 801 cannot be passively driven to rotate. When the rotating chassis 703 rotates, it will rotate with the internal inner inclined block 805. The rotation of the inner inclined block 805 will push up the supporting leg 804 through the inclined surface, and then the outer spring 803 will be contracted through the movable ring 802. When the supporting leg 804 falls off the inclined surface, the outer spring 803 will push the movable ring 802 downward, and the movable ring 802 allows the supporting leg 804 to hit the rotating chassis 703 at the bottom, and the impact on the rotating chassis 703 causes the outer panel of the rear side of the car to shake, so that some small metal slag adhered to the surface due to stamping is loosened. At the same time, the impact of the supporting leg 804 on the rotating chassis 703 causes the rotating chassis 703 and the outer panel of the rear side of the car to squeeze the thin cotton brush 704, so that some alcohol inside the thin cotton brush 704 is squeezed out, so as to slowly release the alcohol at the bottom of the thin cotton brush 704, which can enhance the continuous cleaning effect of the thin cotton brush 704.

[0030] A partition plate 808 is fixedly connected to the outer wall of the movable ring 802, and an opening is provided at the bottom of the rotating chassis 703.

[0031] After the supporting leg 804 is lifted, and then hits the rotating chassis 703 under the action of the outer spring 803, the movable ring 802 also moves toward the rotating chassis 703 with the partition plate 808, which will suddenly reduce the gap between the rotating chassis 703 and the partition plate 808, so that the opening at the bottom of the rotating chassis 703 discharges air to blow the loose metal slag outward and blow the metal debris away from the detection path of the pulling handle 5. When the supporting leg 804 is pushed upward, the opening at the bottom of the rotating chassis 703 will inhale air through the action of the rotating chassis 703 and the partition plate 808. At the same time, the impact of the supporting leg 804 will cause the opening at the bottom of the rotating chassis 703 to discharge air, which can accelerate the drying of alcohol.

[0032] After the detection is completed, pull the second pull ring 807 upwards, and pull up the supporting foot 804 at the bottom of the movable ring 802 through the connecting rod 806 to prevent the supporting foot 804 from limiting the moving direction of the laser detection head 4, and then pull the pulling handle 5 to reset the laser detection head 4, and then pull the first pulling ring 3. Pulling the first pulling ring 3 will prevent the bottom of the fixed suction cup 2 from taking off and adsorbing the rear side outer panel of the car, and then remove the fixed suction cup 2 from the rear side outer panel of the car to complete the flatness detection.

[0033] Example 3: Please refer to Figure 1-9 Based on the first and second embodiments, the present invention provides a technical solution: A detection method for detecting the appearance flatness of the rear side outer panel of an automobile: S1. Spray alcohol onto the thin cotton brush 704, and then allow the two fixed suction cups 2 to be attached to the rear side outer panel of the vehicle to be inspected; S2, hold the detection terminal 6, pull the handle 5 to the left, let the laser detection head 4 move a certain distance, then stop moving, observe the detection terminal 6 to obtain the flatness test result; S3, hold the detection terminal 6, pull the handle 5 to the left again, let the laser detection head 4 move one end distance again, stop moving, observe the detection terminal 6 to obtain the flatness result of the detection, and perform multiple tests according to the detection requirements, and take the average value of multiple tests as the final flatness detection value; S4. Pull the second pull ring 807 upward and pull the pull handle 5 to the right to return the laser detection head 4 to the initial position, then pull the first pull ring 3 to remove the fixed suction cup 2 from the rear side outer panel of the car to complete the flatness detection.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A vehicle rear side outer panel appearance flatness detection device, comprising a measuring point track (1), characterized in that: The bottom of the measuring point track (1) is fixedly connected to two fixed suction cups (2), the tops of the two fixed suction cups (2) are fixedly connected to a first pulling ring (3) and are movably connected inside the measuring point track (1), a laser detection head (4) is arranged inside the first pulling ring (3), and the laser detection head (4) is movably connected inside the measuring point track (1) via two rollers, a pulling handle (5) is fixedly connected to the front of the laser detection head (4), a detection end (6) is fixedly connected to the top of the laser detection head (4) via a connecting line, a brushing mechanism (7) is movably connected to the left side of the laser detection head (4), and a vibration mechanism (8) is fixedly connected to the outer wall of the brushing mechanism (7); The brushing mechanism (7) comprises: A first rotating tube (701), the first rotating tube (701) being arranged on the left side of the laser detection head (4); A second rotating tube (702), the second rotating tube (702) being movably connected to the bottom of the first rotating tube (701); A rotating chassis (703), wherein the rotating chassis (703) is fixedly connected to the bottom of the second rotating tube (702); A thin cotton brush (704), wherein the thin cotton brush (704) is fixedly connected to the bottom of the rotating chassis (703).

2. The vehicle rear side outer panel appearance flatness detection device according to claim 1, characterized in that: A connecting plate (710) is fixedly connected to the left side of the laser detection head (4), and the first rotating tube (701) is movably connected to the inside of the connecting plate (710) via a bearing, the inside of the measuring point track (1) is provided with an inner tooth pattern (705), and the outer wall of the first rotating tube (701) is provided with an outer tooth pattern (706), and the inner tooth pattern (705) and the outer tooth pattern (706) are meshed with each other.

3. The vehicle rear side outer panel appearance flatness detection device according to claim 2, characterized in that: An inner spring (707) is fixedly connected inside the second rotating tube (702), and the top of the inner spring (707) is fixedly connected to the first rotating tube (701).

4. The vehicle rear side outer panel appearance flatness detection device according to claim 3, characterized in that: A spiral plate (708) is fixedly connected to the interior of the first rotating tube (701), and a soft cotton brush (709) is fixedly connected to the outer wall of the rotating chassis (703).

5. The vehicle rear side outer panel appearance flatness detection device according to claim 4, characterized in that: The vibration mechanism (8) comprises a fixed ring (801), the fixed ring (801) being movably connected to the outer wall of the second rotating tube (702), the fixed ring (801) being rotatably connected to the second rotating tube (702) via a bearing, the bottom of the fixed ring (801) being fixedly connected to an outer spring (803), the bottom of the outer spring (803) being fixedly connected to a movable ring (802), the top of the movable ring (802) being fixedly connected to a connecting rod (806), and the connecting rod (806) passing through the fixed ring (801) and being movably connected to the inside of the connecting plate (710), the top of the connecting rod (806) being located at the top of the connecting plate (710) and being fixedly connected to a second pull ring (807), the bottom of the outer spring (803) being fixedly connected to a supporting foot (804), and the top of the rotating chassis (703) being fixedly connected to an inner inclined block (805).

6. The vehicle rear side outer panel appearance flatness detection device according to claim 5, characterized in that: When the second rotating tube (702) rotates, since the connecting rod (806) is restricted by the connecting plate (710), the movable ring (802) and the fixed ring (801) cannot be passively driven to rotate, causing a relative rotation effect between the second rotating tube (702) and the movable ring (802).

7. The vehicle rear side outer panel appearance flatness detection device according to claim 6, characterized in that: A partition plate (808) is fixedly connected to the outer wall of the movable ring (802), and an opening is provided at the bottom of the rotating chassis (703).

8. A method for detecting the appearance flatness of a rear side outer panel of an automobile, using the appearance flatness detection device of the rear side outer panel of an automobile as claimed in claim 7, characterized in that: S1. Spray alcohol onto a thin cotton brush (704), and then allow two fixed suction cups (2) to be attached to the rear side outer panel of the vehicle to be inspected; S2, holding the detection end (6), pulling the handle (5) to the left, allowing the laser detection head (4) to move a certain distance, then stop moving, and observe the detection end (6) to obtain the flatness result of the detection; S3, holding the detection end (6), pulling the handle (5) to the left again, allowing the laser detection head (4) to move a certain distance again, then stop moving, and observe the detection end (6) to obtain the flatness result of the detection. Multiple detections can be performed according to the detection requirements, and the average value of the multiple detections is taken as the final flatness detection value; S4. Pull the second pull ring (807) upwards and pull the pull handle (5) to the right to return the laser detection head (4) to the initial position, then pull the first pull ring (3) to remove the fixed suction cup (2) from the rear side outer panel of the vehicle to complete the flatness detection.

Images