Dump body paint film measurement device and dump body paint spraying system

Abstract

A dump body paint film measurement device, comprising: a conveying apparatus (1), a support frame (2), a moving unit (3), a lifting / lowering output mechanism (4), a manipulator device (5), a rotating output mechanism (6), a final-stage driving apparatus (8), and a thickness measurement mechanism (7). The moving unit (3) is slidably mounted on the support frame (2) and suspended above the conveying apparatus (1). The lifting / lowering output mechanism (4) is mounted on the moving unit (3). The thickness measurement mechanism (7) comprises a mounting frame (71), a measurement apparatus (72), and a rotating shaft (73). According to usage requirements, by adjusting the height of a sliding member (34), a final-stage assembly head (82) is correspondingly assembled together with a first output sleeve (36) or a second output sleeve (45) or a third output sleeve (61), to sequentially achieve the functions of transverse movement, lifting / lowering, and angle adjustment, thereby simplifying the driving system. Further provided is a dump body paint spraying system.

Description

Equipment for inspecting the paint surface of a vehicle body and a vehicle body painting system Technical Field

[0001] This invention relates to the field of vehicle body paint inspection, and more particularly to a vehicle body paint inspection device and a vehicle body painting system. Background Technology

[0002] After the dump truck body is painted, the paint thickness needs to be checked at multiple points to ensure that the paint thickness is up to standard.

[0003] Referring to Figure 1, the prior art provides an automatic vehicle paint inspection device, which includes a robotic arm and an inspection device 72, with the inspection device 72 mounted on the robotic arm. The robotic arm is used to adjust the position of the inspection device 72 and, in conjunction with the production conveyor line, to inspect the paint thickness at different locations within the vehicle compartment. However, the robotic arm has a limited range of motion for adjusting the inspection device 72. When inspecting large vehicle compartments (e.g., dump truck compartments), since the interior of the compartment is usually also painted, it is necessary to inspect the interior of the dump truck compartment. Due to the limitation of the arm's size, the robotic arm cannot easily achieve full-range inspection. Additional lifting and horizontal movement devices are required to work in conjunction with the robotic arm to achieve a wider range of adjustment for the inspection device 72. The use of each moving device and the driving of the robotic arm all require independent drive systems. To expand the movement and inspection range of the inspection device 72, numerous independent drive structures are required, which are difficult to control and have high maintenance costs.

[0004] Therefore, it is necessary to provide a new device for inspecting the paint surface of a vehicle body to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a device for inspecting the paint surface of a vehicle body, which solves the technical problems of having numerous independent drive structures that are difficult to control and have high maintenance costs in order to expand the mobile inspection range of the inspection device.

[0006] To solve the above-mentioned technical problems, the present invention provides a device for inspecting the paint surface of a vehicle body, comprising: a bracket;

[0007] The mobile vehicle includes a mounting frame, a traveling gear, a first output sleeve, a toothed plate, a sliding frame, and an adjusting cylinder. The mounting frame is slidably mounted on the bracket, the first output sleeve is rotatably mounted inside the mounting frame, the traveling gear is mounted on the first output sleeve, the toothed plate is suspended inside the mounting frame and meshes with the toothed plate, and the sliding frame is suspended above the mounting frame by the adjusting cylinder.

[0008] A final-stage drive device, comprising a motor and a final-stage assembly head; the motor is mounted on the sliding frame, and the final-stage assembly head is mounted on the drive shaft of the motor;

[0009] A lifting output mechanism includes an output cylinder, a first threaded cylinder, a second output sleeve, and a connecting member. The top end of the first threaded cylinder is vertically slidably connected to the mounting frame through the connecting member. The top end of the output cylinder is rotatably connected to the mounting frame. The bottom end of the output cylinder is inserted into the first threaded cylinder and threadedly connected to the first threaded cylinder. The second output sleeve is installed inside the output cylinder.

[0010] A thickness detection mechanism is rotatably mounted at the bottom end of the first threaded cylinder;

[0011] A rotary output mechanism is provided for driving the thickness detection mechanism to rotate.

[0012] The mounting bracket has a through hole that connects the first output sleeve and the second output sleeve; the adjusting cylinder is used to adjust the position of the sliding bracket so that the final stage assembly head is assembled with the first output sleeve or the second output sleeve.

[0013] Preferably, the rotary output mechanism includes a third output sleeve, a mandrel, and a rotating sleeve. The third output sleeve is rotatably installed inside the output cylinder and is located below the second output sleeve. The mandrel is installed at the bottom of the third output sleeve and is located inside the output cylinder. The rotating sleeve is sleeved on the mandrel, and the two are connected by a sliding key. The bottom end of the rotating sleeve is fixedly connected to the thickness detection mechanism.

[0014] The adjusting cylinder adjusts the position of the sliding frame so that the final stage assembly head is assembled with any one of the first output sleeve, the second output sleeve, and the third output sleeve.

[0015] Preferably, the final stage assembly head includes an assembly shaft, an elastic element, and two assembly blocks. The assembly shaft is mounted on the drive shaft of the motor and is located between the two assembly blocks. The assembly blocks are inserted into the assembly shaft, and the elastic element is located inside the assembly shaft and elastically connects the two assembly blocks.

[0016] The bottom of the assembly block is set as an inclined surface; an assembly groove is opened on the inner wall of the first output sleeve, and the assembly block is assembled with the assembly groove.

[0017] Preferably, the connector includes a positioning rod and a positioning block. The positioning block is fixed on the first threaded cylinder. The positioning rod is arranged parallel to and spaced apart from the first threaded cylinder. The top end of the positioning rod passes through the mounting bracket and is connected to the sliding bracket. The positioning block is sleeved on the bottom end of the positioning rod.

[0018] Preferably, the thickness detection mechanism includes a mounting frame, a detection device, a rotating shaft, and a rotating motor. One side of the detection device is rotatably mounted inside the mounting frame via the rotating shaft. The rotating motor is mounted on the mounting frame, and the output shaft of the rotating motor passes through the mounting frame and is connected to the other side of the detection device.

[0019] The bottom end of the rotating sleeve is fixedly connected to the mounting frame, and the mounting frame is rotatably connected to the first threaded cylinder.

[0020] Preferably, the equipment for inspecting the paint surface of the vehicle body further includes a robotic arm, which includes a connecting arm and a limiting block, wherein the connecting arm connects the bottom end of the positioning rod to the limiting block;

[0021] The thickness detection mechanism also includes a positioning ring, which is fixedly installed on the mounting frame; the positioning ring has multiple positioning holes around its periphery, and the limiting block is embedded in one of the positioning holes;

[0022] The positioning ring is arranged around the first threaded cylinder and is rotatably connected to the first threaded cylinder.

[0023] Preferably, the positioning rod includes a lead screw, a second threaded cylinder, and a driven gear. The top end of the lead screw passes through the mounting bracket and is rotatably connected to the sliding bracket. The second threaded cylinder is threaded onto the lead screw. The driven gear is mounted on the lead screw and is located above the second threaded cylinder.

[0024] The lifting output mechanism also includes a main gear, which is mounted on the output cylinder and located above the first threaded cylinder;

[0025] The positioning block is connected to the sliding key of the second threaded cylinder, and the connecting arm is installed at the bottom end of the second threaded cylinder;

[0026] When the adjusting cylinder lowers the sliding frame, causing the final stage assembly head to separate from the first output sleeve and assemble with the second output sleeve, the driven gear meshes with the main gear.

[0027] Preferably, the bracket includes a support arm and two pillars, the support arm is installed between the two pillars, the two ends of the mounting bracket are correspondingly sleeved on the two support arms, and the toothed plate is installed between the two pillars.

[0028] Preferably, the equipment for inspecting the paint surface of the vehicle body further includes a conveying device located below the thickness detection mechanism.

[0029] To solve the above-mentioned technical problems, the present invention also provides a vehicle body painting system, including the aforementioned vehicle body paint surface inspection equipment, and further including a painting station, a drying station, a curing station and an inspection station. The vehicle body paint surface inspection equipment is disposed at the inspection station, and the painting station, the drying station and the curing station are sequentially provided with a painting module, a drying module and a curing module.

[0030] Compared with related technologies, the vehicle paint inspection equipment provided by this invention has the following advantages:

[0031] When the motor is in a lateral position, the final stage assembly head mates with the first output sleeve in the traveling gear. At this time, the motor can drive the first output sleeve to rotate through the final stage assembly head, thereby driving the traveling gear to rotate and driving the entire mobile vehicle to move laterally along the support, thus realizing the adjustment of the position of the thickness detection mechanism in the horizontal direction.

[0032] When the motor is in the lifting state, the height of the thickness detection mechanism needs to be adjusted to detect test points at different heights. The adjusting cylinder drives the sliding frame to descend, causing the motor to follow and move the final assembly head down from the first output sleeve and mate with the second output sleeve. When the motor 81 drives the final assembly head to rotate again, the final assembly head drives the output cylinder to rotate through the second output sleeve. The output cylinder drives the first threaded cylinder to rise or fall, thereby adjusting the height of the thickness detection mechanism.

[0033] Depending on the usage requirements, by adjusting the height of the sliding frame, the final stage assembly head can be aligned with the first or second output sleeve, thereby achieving horizontal movement and lifting adjustment functions in sequence through a simplified drive structure. Attached Figure Description

[0034] Figure 1 is a schematic diagram of the structure of a vehicle body paint inspection device in the prior art;

[0035] Figure 2 is a schematic diagram of a preferred embodiment of the equipment for inspecting the paint surface of a vehicle compartment provided by the present invention.

[0036] Figure 3 is a schematic diagram of the partial structure shown in Figure 1;

[0037] Figure 4 is a partial cross-sectional view shown in Figure 1;

[0038] Figure 5 is an enlarged schematic diagram of part A shown in Figure 4;

[0039] Figure 6 is an enlarged schematic diagram of part B shown in Figure 2;

[0040] Figure 7 is an enlarged schematic diagram of section C shown in Figure 4;

[0041] Figure 8 is a cross-sectional view of the assembly of the final stage assembly head and the traveling gear provided by the present invention;

[0042] Figure 9 is a schematic diagram of the switching state of the final stage assembly head provided by the present invention. In Figure 9, (a) is a schematic diagram of the final stage assembly head and the first output set being assembled, (b) is a schematic diagram of the final stage assembly head and the second output set being assembled, and (c) is a schematic diagram of the final stage assembly head and the third output set being assembled.

[0043] Figure 10 is a schematic diagram of the working state of the robotic arm device provided by the present invention. In Figure 10(a), it is a schematic diagram of the assembly of the limiting block and the positioning hole, and Figure 10(b) is a schematic diagram of the separation of the limiting block and the positioning hole.

[0044] Figure 11 is a schematic diagram of the working state of the equipment for inspecting the paint surface of a vehicle compartment provided by the present invention;

[0045] Figure 12 is a schematic diagram of the design principle of the thickness detection mechanism provided by the present invention.

[0046] Numbering on the map:

[0047] 1. Conveying device;

[0048] 2. Frame; 21. Column; 22. Support arm;

[0049] 3. Moving carriage; 31. Mounting bracket; 32. Traveling gear; 33. Gear plate; 34. Sliding frame; 35. Adjusting cylinder; 36. First output sleeve; 311. Through hole; 361. Assembly slot;

[0050] 4. Lifting output mechanism; 41. Output cylinder; 42. First threaded cylinder; 43. Positioning rod; 44. Positioning block; 45. Second output sleeve; 46. Main gear;

[0051] 431. Lead screw; 432. Second threaded cylinder; 433. Follower gear;

[0052] 5. Robotic arm equipment; 51. Connecting arm; 52. Limiting block;

[0053] 6. Rotary output mechanism; 61. Third output sleeve; 62. Mandrel; 63. Rotating sleeve;

[0054] 7. Thickness detection mechanism; 71. Mounting frame; 72. Detection device; 73. Rotating shaft; 74. Positioning ring; 75. Rotating motor; 741. Positioning hole;

[0055] 8. Final stage drive unit; 81. Motor; 82. Final stage assembly head; 821. Assembly shaft; 822. Assembly block; 823. Elastic element;

[0056] 9. Train carriage.

[0057] 20. Processor; 30. Optical pulse module; 40. Infrared detection sensor. Detailed Implementation

[0058] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0059] This invention provides a device for inspecting the paint surface of a vehicle body.

[0060] Referring to Figures 2 to 5, in one embodiment of the present invention, the equipment for inspecting the paint surface of the vehicle compartment includes: a bracket 2;

[0061] The mobile vehicle 3 includes a mounting frame 31, a traveling gear 32, a first output sleeve 36, a toothed plate 33, a sliding frame 34, and an adjusting cylinder 35. The mounting frame 31 is slidably mounted on the bracket 2. The first output sleeve 36 is rotatably mounted inside the mounting frame 31. The traveling gear 32 is mounted on the first output sleeve 36. The toothed plate 33 is suspended inside the mounting frame 31 and meshes with the mounting frame 34. The sliding frame 34 is suspended above the mounting frame 31 by the adjusting cylinder 35.

[0062] The final stage drive device 8 includes a motor 81 and a final stage assembly head 82; the motor 81 is mounted on the sliding frame 34, and the final stage assembly head 82 is mounted on the drive shaft of the motor 81.

[0063] The lifting output mechanism 4 includes an output cylinder 41, a first threaded cylinder 42, a second output sleeve 45, and a connector. The top end of the first threaded cylinder 42 is vertically slidably connected to the mounting frame 31 through the connector. The top end of the output cylinder 41 is rotatably connected to the mounting frame 31. The bottom end of the output cylinder 41 is inserted into the first threaded cylinder 42 and threadedly connected to the first threaded cylinder 42. The second output sleeve 45 is installed inside the output cylinder 41.

[0064] Thickness detection mechanism 7, which is rotatably mounted on the bottom end of the first threaded cylinder 42;

[0065] A rotary output mechanism 6 is used to drive the thickness detection mechanism 7 to rotate.

[0066] The mounting bracket 31 has a through hole 311, which connects the first output sleeve 36 and the second output sleeve 45; the adjusting cylinder 35 is used to adjust the position of the sliding bracket 34 so that the final stage assembly head 82 is assembled with the first output sleeve 36 or the second output sleeve 45.

[0067] In this embodiment, the thickness detection mechanism 7 is a non-contact detection device that uses the photothermal infrared principle to detect the paint thickness of the vehicle body. Referring to Figure 12, the thickness detection mechanism 7 incorporates a processor 20, a light pulse module 30, and an infrared detection sensor 40. The working principle of the photothermal method is as follows: the light pulse module 30 emits light pulses to heat the surface of the coating on the substrate by 1-2°C to avoid damaging or affecting the coating, and the generated heat diffuses into the coating. When it reaches the interface between the coating and the substrate, the reflected thermal radiation is detected by the infrared detection sensor 40. Using the phase of the detected infrared thermal radiation signal, i.e., the time shift of the radiated thermal wave relative to the excitation light wave, the processor 20 processes the data to obtain the coating thickness information.

[0068] Please refer to Figure 11. The paint thickness testing equipment for dump truck bodies provided by this invention is used for dump truck bodies with unsealed tops or dump truck bodies after the top panel has been removed. During testing, no fewer than five testing points are selected on each side of the truck body 9, and each point is tested three times. The average value is taken as the paint thickness value at that point. The thickness testing mechanism 7 is adjusted to different testing positions using the moving vehicle 3, the lifting output mechanism 4, and the rotating output mechanism 6 to perform multi-point testing on the truck body 9.

[0069] In practical use:

[0070] Please refer to Figure 9(a). When the motor 81 is in the lateral state, the final stage assembly head 82 is assembled with the first output sleeve 36 in the walking gear 32. At this time, the motor 81 can drive the first output sleeve 36 to rotate through the final stage assembly head 82, thereby driving the walking gear 32 to rotate and driving the entire mobile vehicle 3 to move laterally along the bracket 2, thereby realizing the adjustment of the position of the thickness detection mechanism 7 in the horizontal direction.

[0071] When the motor 81 is in the lifting state, the height of the thickness detection mechanism 7 needs to be adjusted to detect test points at different heights. Please refer to Figure 9(b). The adjusting cylinder 35 drives the sliding frame 34 to descend, which in turn drives the motor 81 to descend, causing the final assembly head 82 to move downward from the first output sleeve 36 and assemble with the second output sleeve 45. When the motor 81 drives the final assembly head 82 to rotate again, the final assembly head 82 drives the output cylinder 41 to rotate through the second output sleeve 45. The output cylinder 41 drives the first threaded cylinder 42 to rise or fall, thereby adjusting the height value of the thickness detection mechanism 7.

[0072] In this state, the drive shaft of the motor 81 is located inside the first output sleeve 36 and does not contact the first output sleeve 36, so it will not drive the first output sleeve 36 to rotate.

[0073] According to the usage requirements, by adjusting the height of the sliding frame 34, the final stage assembly head 82 is aligned with the first output sleeve 36 or the second output sleeve 45, so as to realize the horizontal movement and lifting adjustment functions in sequence with a simplified drive structure.

[0074] In one embodiment, the rotary output mechanism 6 is a rotary motor, which is installed at the bottom end of the first threaded cylinder 42, and the thickness detection mechanism 7 is installed on the output shaft of the rotary motor.

[0075] In another embodiment, referring to Figures 4, 5 and 10, the rotary output mechanism 6 includes a third output sleeve 61, a spindle 62 and a rotating sleeve 63. The third output sleeve 61 is rotatably installed inside the output cylinder 41 and is located below the second output sleeve 45. The spindle 62 is installed at the bottom of the third output sleeve 61 and is located inside the output cylinder 41. The rotating sleeve 63 is sleeved on the spindle 62 and the two are connected by a sliding key. The bottom end of the rotating sleeve 63 is fixedly connected to the thickness detection mechanism 7.

[0076] The adjusting cylinder 35 adjusts the position of the sliding frame 34 so that the final stage assembly head 82 is assembled with any one of the first output sleeve 36, the second output sleeve 45, and the third output sleeve 61.

[0077] When motor 81 is rotating, the horizontal angle of thickness detection mechanism 7 can be adjusted. For example, after the inspection of the left side of the carriage 9 to be tested is completed, when switching to the inspection of the front end, the horizontal angle of detection device 72 needs to be adjusted.

[0078] Please refer to Figure 9(c). The adjusting cylinder 35 lowers the sliding frame 34 again, causing the motor 81 to follow suit and the final assembly head 82 to follow suit. After the final assembly head 82 moves down out of the second output sleeve 45, it assembles with the third output sleeve 61. The part of the motor 81's drive shaft passes through the first output sleeve 36 and the second output sleeve 45 respectively. At this time, the motor 81 drives the final assembly head 82, causing the third output sleeve 61 to rotate, thereby causing the spindle 62 to rotate. The spindle 62 drives the rotating sleeve 63 to rotate, and the rotating sleeve 63 drives the mounting frame 71 to rotate, thereby adjusting the orientation angle of the detection device 72.

[0079] According to the usage requirements, by adjusting the height of the sliding frame 34, the final stage assembly head 82 can be assembled with the first output sleeve 36, the second output sleeve 45, or the third output sleeve 61, thereby realizing the functions of horizontal movement, lifting and lowering, and angle adjustment, simplifying the drive system.

[0080] By setting a sliding key connection between the spindle 62 and the rotating sleeve 63, the rotating sleeve 63 can slide relative to the spindle 62 when the thickness detection mechanism 7 is raised or lowered to different heights, and the rotating output mechanism 6 can still adjust the horizontal angle of the thickness detection mechanism 7 at different heights.

[0081] In one embodiment, the mandrel 62 is a square shaft, and the inner cavity of the rotating sleeve 63 has a square cross-section, which is sleeved on the mandrel 62 to form a sliding key connection.

[0082] In another embodiment, the mandrel 62 has grooves on both sides, and the inner wall of the rotating sleeve 63 has sliding keys on both sides, which slide into the grooves to form a sliding key fit.

[0083] In one embodiment, the final assembly head 82 is a square head, and the inner cavities of the first output sleeve 36, the second output sleeve 45, and the third output sleeve 61 are correspondingly set as square cavities, with the width of the square cavity being greater than the diameter of the drive shaft of the motor 81. Each time the motor 81 starts and stops, it preferably rotates an integer number of revolutions or a multiple of a quarter revolution, thereby facilitating the alignment of the square cavity with the sides of the square head during each switching, thus simplifying assembly.

[0084] Referring to Figures 5 and 8, in another embodiment, the final stage assembly head 82 includes an assembly shaft 821, an elastic element 823, and two assembly blocks 822. The assembly shaft 821 is mounted on the drive shaft of the motor 81. The assembly shaft 821 is located between the two assembly blocks 822. The assembly blocks 822 are inserted into the assembly shaft 821. The elastic element 823 is located within the assembly shaft 821 and elastically connects the two assembly blocks 822.

[0085] The bottom of the assembly block 822 is set as an inclined surface; an assembly groove 361 is provided on the inner wall of the first output sleeve 36, and the assembly block 822 is assembled with the assembly groove 361.

[0086] The first output sleeve 36, the second output sleeve 45 and the third output sleeve 61 have the same internal cavity structure. The difference is that the bottom end of the third output sleeve 61 is a sealed structure, while the bottom ends of the first output sleeve 36 and the second output sleeve 45 are open.

[0087] During assembly, the assembly blocks 822 on both sides of the final stage assembly head 82 are inserted into the assembly slots 361 on both sides of the inner wall of the first output sleeve 36. When the final stage assembly head 82 rotates, the first output sleeve 36 rotates through the assembly blocks 822, thereby driving the travel gear 32 to rotate.

[0088] In this embodiment, when the final assembly head 82 is switching, if the assembly block 822 and the assembly slot 361 are not aligned, such as when the final assembly head 82 is assembled with the first output sleeve 36, the inclined surface at the bottom of the assembly block 822 interacts with the top of the first output sleeve 36, and the inclined surfaces of the two assembly blocks 822 are squeezed and move toward the opposite side, compressing the elastic element 823. When the motor 81 drives the final assembly head 82 to rotate, after the assembly block 822 is aligned with the assembly slot 361, the elastic element 823 pushes the two assembly blocks 822 out to assemble with the two corresponding assembly slots 361.

[0089] The final stage assembly head 82 is assembled on the same principle as the first output sleeve 36 and the second output sleeve 45.

[0090] The elastic element 823 is a spring or leaf spring elastic component.

[0091] Please refer to Figure 3 again. The connector includes a positioning rod 43 and a positioning block 44. The positioning block 44 is fixed on the first threaded cylinder 42. The positioning rod 43 is arranged parallel to and spaced apart from the first threaded cylinder 42. The top end of the positioning rod 43 passes through the mounting bracket 31 and is connected to the sliding bracket 34. The positioning block 44 is sleeved on the bottom end of the positioning rod 43.

[0092] The positioning block 44 is sleeved on the positioning rod 43 to limit the axial movement of the first threaded cylinder 42. When the output cylinder 41 rotates, the first threaded cylinder 42 can stably rise and fall along the surface of the output cylinder 41.

[0093] Referring to Figures 6 and 7, the thickness detection mechanism 7 includes a mounting frame 71, a detection device 72, a rotating shaft 73, and a rotating motor 75. One side of the detection device 72 is rotatably mounted inside the mounting frame 71 via the rotating shaft 73. The rotating motor 75 is mounted on the mounting frame 71, and the output shaft of the rotating motor 75 passes through the mounting frame 71 and is connected to the other side of the detection device 72.

[0094] The bottom end of the rotating sleeve 63 is fixedly connected to the mounting frame 71, and the mounting frame 71 is rotatably connected to the first threaded cylinder 42.

[0095] The testing device 72 is the device that uses the photothermal method to test the thickness of vehicle paint.

[0096] The rotating motor 75 drives the detection device 72 to rotate, thereby adjusting the pitch angle of the detection device 72. In conjunction with the rotating output mechanism 6, the tilt direction of the detection head of the detection device 72 can be adjusted, enabling the detection of different sides and the bottom of the inner wall of different carriages 9.

[0097] Please refer to Figures 6 and 7. The equipment for inspecting the paint surface of the vehicle body also includes a robotic arm device 5. The robotic arm device 5 includes a connecting arm 51 and a limiting block 52. The connecting arm 51 connects the bottom end of the positioning rod 43 to the limiting block 52.

[0098] The thickness detection mechanism 7 also includes a positioning ring 74, which is fixedly installed on the mounting frame 71; the periphery of the positioning ring 74 is provided with a plurality of positioning holes 741, and the limiting block 52 is embedded in one of the positioning holes 741;

[0099] The positioning ring 74 is arranged around the first threaded cylinder 42 and is rotatably connected to the first threaded cylinder 42.

[0100] Please refer to Figures 5 and 10 (a) and (b). During the process of adjusting cylinder 35 lowering sliding frame 34, sliding frame 34 drives positioning rod 43 to descend sequentially. When adjusting cylinder 35 adjusts the final stage assembly head 82 to assemble with the third output sleeve 61, connecting arm 51 at the bottom of positioning rod 43 descends. Connecting arm 51 drives limit block 52 to move out of current positioning hole 741. At this time, limit block 52 is unlocked from positioning ring 74. That is, when final stage assembly head 82 drives third output sleeve 61 to rotate, rotating output mechanism 6 can drive mounting frame 71 to rotate accordingly, thereby adjusting the horizontal angle of detection device 72.

[0101] After adjustment, the other positioning hole 741 on the positioning ring 74 is aligned with the limiting block 52. When the adjusting cylinder 35 pushes the sliding frame 34 and the final stage assembly head 82 is assembled with the second output sleeve 45 or the first output sleeve 36 again, the sliding frame 34 drives the positioning rod 43 to move upward, and the positioning rod 43 drives the connecting arm 51 to move upward. At this time, the limiting block 52 is embedded in the corresponding positioning hole 741 again, thereby limiting the current orientation of the detection device 72 and keeping it stably in the current direction for detection.

[0102] The positioning ring 74 has no fewer than four positioning holes 741, and in this embodiment, it is set to eight.

[0103] In one embodiment, the positioning rod 43 is a straight rod structure. By setting the length of the limiting block 52 to match the lifting stroke of the lifting output mechanism 4, the detection device 72 can be satisfied at different heights. The limiting block 52 can be embedded in the positioning hole 741 on the positioning ring 74 to limit the axial movement of the detection device 72.

[0104] Please refer to Figures 3, 4 and 6. In another embodiment, the positioning rod 43 includes a lead screw 431, a second threaded cylinder 432 and a driven gear 433. The top end of the lead screw 431 passes through the mounting bracket 31 and is rotatably connected to the sliding bracket 34. The second threaded cylinder 432 is threadedly connected to the lead screw 431. The driven gear 433 is mounted on the lead screw 431 and is located above the second threaded cylinder 432.

[0105] The lifting output mechanism 4 also includes a main gear 46, which is mounted on the output cylinder 41 and located above the first threaded cylinder 42;

[0106] The positioning block 44 is keyway connected to the second threaded cylinder 432, and the connecting arm 51 is installed at the bottom end of the second threaded cylinder 432;

[0107] When the adjusting cylinder 35 lowers the sliding frame 34, causing the final stage assembly head 82 to separate from the first output sleeve 36 and assemble with the second output sleeve 45, the driven gear 433 meshes with the main gear 46.

[0108] By setting the positioning rod 43 as a lead screw structure, when the lifting output mechanism 4 adjusts the height of the detection device 72, the driven gear 433 meshes with the main gear 46. At the same time, the output cylinder 41 rotates, and the main gear 46 drives the driven gear 433 to rotate. The driven gear 433 drives the lead screw 431 to rotate at the same time. At this time, the second threaded cylinder 432 and the first threaded cylinder 42 descend at the same time. When the detection device 72 is at different heights, the robot arm device 5 and the positioning ring 74 are always at the same height.

[0109] In one embodiment, the outer cross-section of the second threaded cylinder 432 is square, and the positioning block 44 is sleeved on the surface of the second threaded cylinder 432 to form a sliding key fit, thereby limiting the axial movement of the second threaded cylinder 432.

[0110] In another embodiment, a groove is formed on the surface of the second threaded cylinder 432, and a sliding key is correspondingly provided inside the positioning block 44 and slides into the groove to form a sliding key engagement.

[0111] In a preferred embodiment, when the height of the driven gear 433 is greater than the height of the main gear 46, and the adjusting cylinder 35 drives the sliding frame 34 to rise and fall, so that the final stage assembly head 82 is assembled with the first output sleeve 36 or the third output sleeve 61, the driven gear 433 is still engaged with the main gear 46. This prevents the main gear 46 or the driven gear 433 from deflecting due to vibration or other reasons after the driven gear 433 separates from the main gear 46, which would prevent subsequent assembly from being impossible.

[0112] The diameter of the main gear 46 is larger than that of the driven gear 433, so the pitch of the lead screw 431 is greater than that of the output cylinder 41, thus ensuring that the first threaded cylinder 42 and the second threaded cylinder 432 can rise and fall synchronously when the output cylinder 41 rotates.

[0113] In one embodiment, the bracket 2 includes a sliding arm and two mounting arms, with the two ends of the sliding arm respectively mounted on the bottom ends of the two mounting arms, and the mounting frame 31 slidably mounted on the sliding arm. The top ends of the mounting arms are mounted on the roof surface of the building.

[0114] Referring to Figures 2 and 3, in another embodiment, the bracket 2 includes a support arm 22 and two pillars 21. The support arm 22 is installed between the two pillars 21. The two ends of the mounting bracket 31 are respectively sleeved on the two support arms 22. The toothed plate 33 is installed between the two pillars 21.

[0115] When the position of the detection device 72 needs to be adjusted laterally, the motor 81 drives the traveling gear 32 to rotate. The traveling gear 32 interacts with the toothed plate 33, driving the entire moving vehicle 3 to move along the support arm 22, thereby enabling the detection device 72 to move laterally and perform detection on different test points on the two sides and the bottom of the inner wall of the test carriage 9.

[0116] Referring to Figures 2 and 11, the equipment for inspecting the paint surface of the vehicle body also includes a conveying device 1, which is located below the thickness detection mechanism 7.

[0117] When the test carriage 9 is being tested, the automobile production conveyor line transports the test carriage 9 to the conveyor device 1. The conveyor device 1 can adjust the longitudinal position of the carriage 9, and the moving vehicle 3 can adjust the lateral position of the testing device 72 to achieve testing at different testing points.

[0118] The conveying device 1 is a conveyor belt structure or a conveyor roller structure. The two support pillars 21 are symmetrically installed on both sides of the conveying device 1.

[0119] In this invention, the distance the mobile vehicle 3 travels along the support 2, the lifting height of the lifting output mechanism 4, and the rotation angle of the rotating output mechanism 6 can be determined by setting displacement sensors, distance sensors, and photoelectric switches.

[0120] The equipment for inspecting the paint surface of the carriage also includes a control system for controlling the operation of the equipment.

[0121] The working principle of the vehicle body paint inspection equipment provided by this invention is as follows:

[0122] When testing the carriage 9, the carriage 9 is transported to the conveying device 1. First, the external sides of the carriage 9 are tested in sequence, and then the internal sides and bottom are tested in sequence.

[0123] During testing, the lifting output mechanism 4 can adjust the height of the testing device 72 to test points at different heights on the outer and inner sides of the carriage 9. The height of the testing device 72 can also be adjusted to allow it to extend into the interior of the carriage 9 for testing. The rotating output mechanism 6 can adjust the orientation of the testing head of the testing device 72 to test different sides and the bottom of the inner wall of different carriages 9. The moving vehicle 3 can adjust the lateral position of the testing device 72 to test different points.

[0124] Specifically, when the detection device 72 needs to move laterally, the final assembly head 82 is assembled with the first output sleeve 36 in the walking gear 32. At this time, the motor 81 can drive the first output sleeve 36 to rotate through the final assembly head 82, thereby driving the walking gear 32 to rotate, and interacting with the toothed plate 33 to drive the entire moving vehicle 3 to move laterally along the support arm 22.

[0125] When it is necessary to raise or lower the detection device 72 to detect test points at different heights, please refer to Figure 9(b). The adjusting cylinder 35 drives the sliding frame 34 to descend, which in turn drives the motor 81 to descend, causing the final assembly head 82 to move downward from the first output sleeve 36 and assemble with the second output sleeve 45. When the motor 81 drives the final assembly head 82 to rotate again, the final assembly head 82 drives the output cylinder 41 to rotate through the second output sleeve 45. The output cylinder 41 drives the first threaded cylinder 42 to rise or fall, thereby realizing the raising or lowering of the detection device 72.

[0126] When it is necessary to adjust the horizontal angle of the detection device 72, such as when switching from detecting the left side of the carriage 9 to detecting the front end, it is necessary to adjust the horizontal angle of the detection device 72.

[0127] Please refer to Figure 9(b) and Figure 9(c). The adjusting cylinder 35 lowers the sliding frame 34 again, driving the motor 81 to follow and the final stage assembly head 82 to follow. The final stage assembly head 82 moves downward out of the second output sleeve 45 and assembles with the third output sleeve 61. The part of the motor 81 drive shaft passes through the first output sleeve 36 and the second output sleeve 45 respectively. At this time, the motor 81 drives the final stage assembly head 82, driving the third output sleeve 61 to rotate, thereby driving the spindle 62 to rotate. The spindle 62 drives the rotating sleeve 63 to rotate, and the rotating sleeve 63 drives the mounting frame 71 to rotate, thereby adjusting the direction angle of the detection device 72.

[0128] Furthermore, during this process, please refer to Figure 5 and Figure 10(a) and Figure 10(b). As the adjusting cylinder 35 lowers the sliding frame 34, the sliding frame 34 drives the positioning rod 43 to descend sequentially. When the adjusting cylinder 35 adjusts the final stage assembly head 82 to assemble with the third output sleeve 61, the connecting arm 51 at the bottom of the positioning rod 43 descends. The connecting arm 51 drives the limit block 52 to move out of the current positioning hole 741. At this time, the limit block 52 and the positioning ring 74 are unlocked. That is, when the final stage assembly head 82 drives the third output sleeve 61 to rotate, the rotating output mechanism 6 can drive the mounting frame 71 to rotate accordingly, thereby adjusting the horizontal angle of the detection device 72.

[0129] After adjustment, the other positioning hole 741 on the positioning ring 74 is aligned with the limit block 52. When the adjusting cylinder 35 pushes the sliding frame 34 and the final stage assembly head 82 is assembled with the second output sleeve 45 or the first output sleeve 36 again, the sliding frame 34 drives the positioning rod 43 to move upward, and the positioning rod 43 drives the connecting arm 51 to move upward. At this time, the limit block 52 is embedded in the corresponding positioning hole 741 again, thereby limiting the current orientation of the detection device 72 and keeping it stably in the current direction for detection.

[0130] The rotating motor 75 drives the detection device 72 to rotate. When the pitch angle of the detection device 72 can be adjusted, such as rotating downwards, it can test the bottom of the inner wall of the carriage 9.

[0131] The present invention also provides a vehicle interior painting system.

[0132] The vehicle body painting system includes the vehicle body paint surface inspection equipment, as well as a painting station, a drying station, a curing station and an inspection station. The vehicle body paint surface inspection equipment is set at the inspection station, and the painting station, the drying station and the curing station are respectively equipped with a painting module, a drying module and a curing module.

[0133] Please refer to Figure 11 again. The car body 9 to be painted is transported to the painting station via the automobile production conveyor line. It is painted by the painting module and then transported to the drying station and curing station in sequence. The paint surface is dried and cured by the drying module and curing module. Finally, the automobile production conveyor line transports the car body 9 to be inspected to the conveyor device 1. The paint surface of the car body 9 is automatically and comprehensively inspected by the car body paint surface inspection equipment.

[0134] The vehicle body painting system also includes an electronic screen.

[0135] The inspection device 72 transmits the inspected data to an electronic screen. After analysis and processing, the data is displayed on the screen. The screen also provides alarms and data alerts for defective workpieces, prompting the workshop to isolate and rework them. This timely handling of defects adapts to the needs of batch and assembly line operations.

[0136] In addition, an inspection station can be set up between the painting station and the drying station to conduct an inspection immediately after painting, which allows operators to make timely corrections, and workshop managers can track whether the painting data is up to standard.

[0137] The specific structure of the equipment for inspecting the paint surface of the carriage is as described in the above embodiments. Since the carriage painting system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0138] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for inspecting the paint surface of a vehicle body, characterized in that, include: support; The mobile vehicle includes a mounting frame, a traveling gear, a first output sleeve, a toothed plate, a sliding frame, and an adjusting cylinder. The mounting frame is slidably mounted on the bracket, the first output sleeve is rotatably mounted inside the mounting frame, the traveling gear is mounted on the first output sleeve, the toothed plate is suspended inside the mounting frame and meshes with the toothed plate, and the sliding frame is suspended above the mounting frame by the adjusting cylinder. A final-stage drive unit, the final-stage drive unit comprising a motor and a final-stage assembly head; The motor is mounted on the sliding frame, and the final stage assembly head is mounted on the drive shaft of the motor; A lifting output mechanism includes an output cylinder, a first threaded cylinder, a second output sleeve, and a connecting member. The top end of the first threaded cylinder is vertically slidably connected to the mounting frame through the connecting member. The top end of the output cylinder is rotatably connected to the mounting frame. The bottom end of the output cylinder is inserted into the first threaded cylinder and threadedly connected to the first threaded cylinder. The second output sleeve is installed inside the output cylinder. A thickness detection mechanism is rotatably mounted at the bottom end of the first threaded cylinder; A rotary output mechanism is provided for driving the thickness detection mechanism to rotate. The mounting bracket has a through hole that connects the first output sleeve and the second output sleeve; the adjusting cylinder is used to adjust the position of the sliding bracket so that the final stage assembly head mates with the first output sleeve or the second output sleeve. When the motor is in a lateral state, the final stage assembly head is assembled with the first output sleeve in the traveling gear. At this time, the motor drives the first output sleeve to rotate through the final stage assembly head, thereby driving the traveling gear to rotate and driving the entire mobile vehicle to move laterally along the bracket, thereby realizing the adjustment of the position of the thickness detection mechanism in the horizontal direction. When the motor is in the lifting state, the height of the thickness detection mechanism needs to be adjusted to detect test points at different heights. The adjusting cylinder drives the sliding frame to descend, which in turn drives the motor to descend, causing the final assembly head to move downward from the first output sleeve and mate with the second output sleeve. When the motor drives the final assembly head to rotate again, the final assembly head drives the output cylinder to rotate through the second output sleeve. The output cylinder drives the first threaded cylinder to rise or fall, thereby adjusting the height value of the thickness detection mechanism. In this state, the drive shaft of the motor is located inside the first output sleeve, does not contact the first output sleeve, and will not drive the first output sleeve to rotate.

2. The equipment for inspecting the paint surface of a vehicle body according to claim 1, characterized in that, The rotary output mechanism includes a third output sleeve, a mandrel, and a rotating sleeve. The third output sleeve is rotatably installed inside the output cylinder and is located below the second output sleeve. The mandrel is installed at the bottom of the third output sleeve and is located inside the output cylinder. The rotating sleeve is sleeved on the mandrel, and the two are connected by a sliding key. The bottom end of the rotating sleeve is fixedly connected to the thickness detection mechanism. The adjusting cylinder adjusts the position of the sliding frame so that the final stage assembly head is assembled with any one of the first output sleeve, the second output sleeve, and the third output sleeve.

3. The equipment for inspecting the paint surface of a vehicle body according to claim 2, characterized in that, The final stage assembly head includes an assembly shaft, an elastic element, and two assembly blocks. The assembly shaft is mounted on the drive shaft of the motor and is located between the two assembly blocks. The assembly blocks are inserted into the assembly shaft, and the elastic element is located inside the assembly shaft and elastically connects the two assembly blocks. The bottom of the assembly block is set as an inclined surface; an assembly groove is opened on the inner wall of the first output sleeve, and the assembly block is assembled with the assembly groove.

4. The equipment for inspecting the paint surface of a vehicle compartment according to claim 3, characterized in that, The connector includes a positioning rod and a positioning block. The positioning block is fixed on the first threaded cylinder. The positioning rod is parallel to and spaced apart from the first threaded cylinder. The top end of the positioning rod passes through the mounting bracket and is connected to the sliding bracket. The positioning block is sleeved on the bottom end of the positioning rod.

5. The equipment for inspecting the paint surface of a vehicle body according to claim 4, characterized in that, The thickness detection mechanism includes a mounting frame, a detection device, a rotating shaft, and a rotating motor. One side of the detection device is rotatably mounted inside the mounting frame via the rotating shaft. The rotating motor is mounted on the mounting frame, and the output shaft of the rotating motor passes through the mounting frame and connects to the other side of the detection device. The bottom end of the rotating sleeve is fixedly connected to the mounting frame, and the mounting frame is rotatably connected to the first threaded cylinder.

6. The equipment for inspecting the paint surface of a vehicle body according to claim 5, characterized in that, The equipment for inspecting the paint surface of the vehicle body also includes a robotic arm, which includes a connecting arm and a limiting block. The connecting arm connects the bottom end of the positioning rod to the limiting block. The thickness detection mechanism also includes a positioning ring, which is fixedly installed on the mounting frame; the positioning ring has multiple positioning holes around its periphery, and the limiting block is embedded in one of the positioning holes; The positioning ring is arranged around the first threaded cylinder and is rotatably connected to the first threaded cylinder.

7. The equipment for inspecting the paint surface of a vehicle body according to claim 6, characterized in that, The positioning rod includes a lead screw, a second threaded cylinder, and a driven gear. The top end of the lead screw passes through the mounting bracket and is rotatably connected to the sliding bracket. The second threaded cylinder is threaded onto the lead screw. The driven gear is mounted on the lead screw and is located above the second threaded cylinder. The lifting output mechanism also includes a main gear, which is mounted on the output cylinder and located above the first threaded cylinder; The positioning block is connected to the sliding key of the second threaded cylinder, and the connecting arm is installed at the bottom end of the second threaded cylinder; When the adjusting cylinder lowers the sliding frame, causing the final stage assembly head to separate from the first output sleeve and assemble with the second output sleeve, the driven gear meshes with the main gear.

8. The equipment for inspecting the paint surface of a vehicle body according to claim 1, characterized in that, The bracket includes a support arm and two pillars. The support arm is installed between the two pillars. The two ends of the mounting bracket are correspondingly sleeved on the two support arms. The toothed plate is installed between the two pillars.

9. The equipment for inspecting the paint surface of a vehicle body according to claim 1, characterized in that, The equipment for inspecting the paint surface of the vehicle body also includes a conveying device, which is located below the thickness detection mechanism.

10. A vehicle body painting system, characterized in that, The equipment for inspecting the paint surface of a vehicle compartment as described in any one of claims 1-9 further includes a painting station, a drying station, a curing station, and an inspection station. The equipment for inspecting the paint surface of the vehicle compartment is disposed at the inspection station, and a painting module, a drying module, and a curing module are sequentially disposed on the painting station, the drying station, and the curing station.

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