Automobile door guard plate assembly detection assistive device and detection method thereof

Abstract

The invention relates to the technical field of automobile assembly detection, in particular to an automobile door guard plate assembly detection auxiliary tool and a detection method thereof.The automobile door guard plate assembly detection auxiliary tool comprises an automobile door guard plate detection auxiliary frame, and a control output device is arranged on one side of the automobile door guard plate detection auxiliary frame. A feeler lever is used for carrying an image acquisition device and a pressure contact sensor and stretching into an assembled gap of the automobile door guard plate, image acquisition and output are carried out on the bottom of the automobile door guard plate, whether accessories are installed in place or not is detected, and a detection strip is matched to amplify a pressure detection signal of the pressure contact sensor, so that whether screws are firmly installed or not is accurately detected. The purpose of replacing manual observation to avoid errors is achieved, the problem that in the prior art, observation errors may occur when an auxiliary tool is manually operated to conduct observation and recognition to complete detection is solved, and the assembling efficiency of the automobile door is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile assembly detection, and in particular relates to an automobile door guard plate assembly detection auxiliary tool and a detection method thereof. Background Art

[0002] In the automobile manufacturing industry, the door guards of cars are indispensable parts. The main function of the door guards inside the car is to beautify the interior of the whole car and to reduce vibration and noise. In the automobile manufacturing industry, process inspection is an indispensable part of automobile manufacturing. The function of the inspection aids for the assembly process of automobile door guards is mainly to facilitate the inspectors to save time, labor and efficiently complete the inspection of the assembly process of door guards during the process inspection. In addition, the door guard inspection aids can detect the assembly status of the covering parts inside the door guards, and prevent unnecessary problems in advance. However, in similar technologies in the automobile industry, the inspection of door guards during the assembly process can only be detected by human senses, and cannot be The assembly status of the small speakers and fastening screws installed in the door panels was completely and correctly detected. Therefore, a series of quality problems caused great complaints from customers and affected the market reputation of the product. Because the vehicle-mounted door panels are installed on the car doors, the firmness of their installation is extremely important. The fastening screws of the door panels play a vital role. The speakers installed on the car door panels are also indispensable parts of the vehicle's electrical components. Because the speakers are installed on the inside of the door panels, during the vehicle manufacturing process, it is difficult for the inspector to detect whether the speakers covered by the door panels are missing during the inspection by relying on their senses; because the fastening screws of the door panels are installed at the bottom of the car door, the assembly status of the fastening screws of the door panels is not easy to observe. The problem of missing speakers in the door panels and the missing tightening of the door panel screws has always been a problem that plagues production and manufacturing. Once the problem of missing speakers and missing screws occurs, the rework project is large, affecting production efficiency.

[0003] The existing Chinese patent document with publication number CN103245263B proposes an automobile door guard plate assembly detection aid and a detection method thereof. Through the principle of reflection by a plane mirror, the installation status of the fastening screws can be quickly and conveniently detected, and the magnet on the aid and the magnet of the speaker itself have a mutual attraction effect, so that the speaker can be quickly and conveniently detected whether it is missing or not to solve the above problem. However, manual observation and identification are still required to complete the detection. In particular, whether the screws are tightened is difficult to observe with the human eye, and observation errors are very likely to occur.

[0004] Therefore, the present invention proposes an automobile door guard panel assembly detection auxiliary tool and a detection method thereof, which solves the problem of possible observation errors in the prior art when manually operating auxiliary tools to perform observation and identification to complete detection. An auxiliary frame is set to fix the assembled automobile door guard panel equipment, and a mechanical arm and a probe are arranged on the auxiliary frame to extend into the gap between the guard panel and the automobile door panel to perform image acquisition and output recognition to detect whether the accessories are installed in place, and a pressure-triggered sensor is used to accurately detect whether the screws are tightly installed, thereby achieving the purpose of replacing manual observation and avoiding errors. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide an automobile door guard plate assembly detection aid and a detection method thereof to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automobile door guard plate assembly detection auxiliary tool, comprising an automobile door guard plate detection auxiliary frame, a control output device is arranged on one side of the automobile door guard plate detection auxiliary frame, a telescopic frame is arranged on the bottom of the automobile door guard plate detection auxiliary frame, a mechanical arm device is fixedly installed above the telescopic frame, a guard plate assembly detection probe arm assembly is arranged on one side of the mechanical arm device, the guard plate assembly detection probe arm assembly comprises a fixed protective shell, a probe rod recovery protective shell and a probe rod, the probe rod is symmetrically arranged on both sides of the fixed protective shell, and an image acquisition device is fixedly installed on the inner wall of one side of the probe rod.

[0007] Preferably, the upper end of the fixed protective shell is fixedly connected to the output shaft of the robotic arm device, the probe rod recovery protective shell is fixedly installed on one side of the lower surface of the fixed protective shell, and a rotating connecting head is provided on the other side of the probe rod. The probe rod is rotatably installed in the middle part of the rotating connecting head, and the rotating connecting head is rotatably installed on the inner wall of the probe rod recovery protective shell, and a gear 2 is fixedly installed on one side of the rotating shaft of the rotating connecting head.

[0008] Preferably, a telescopic rod is fixedly installed on the upper inner side of the probe rod recovery shell, and a rack group 2 is slidably installed on the inner surface of the probe rod recovery shell. The side surfaces of the rack group 2 are respectively meshed with the side surfaces of the gear 2, and the lower end of the telescopic rod is fixedly connected to the middle part of the rack group 2.

[0009] Preferably, a driving motor is fixedly installed on the lower inner side of the probe rod recovery shell, and a bevel gear 1 is fixedly installed on the output shaft of the driving motor. A bevel gear 2 is fixedly installed on one end of the rotating shaft connecting the probe rod and the image acquisition device, and the bevel gear 2 is arranged on both sides above the bevel gear 1.

[0010] Preferably, a rack set 1 is slidably mounted on the inner side of the fixed protective shell, and a threaded rod driving assembly for driving the rack set 1 to slide is provided in the middle of the inner side of the fixed protective shell.

[0011] Preferably, a detection strip is symmetrically and slidably installed on the inner side of the detection rod, a pressure contact sensor is fixedly installed on the side wall of the detection strip, a sliding groove compatible with the detection strip is opened on the side wall of the detection rod, an adjustment stud bolt rod is rotatably installed on the inner wall of one side of the detection rod close to the detection rod recovery shell, a gear 1 is fixedly installed on the outer surface of one end of the adjustment stud bolt rod on the same side as the rack group, and one side inner wall of the detection strip is threadedly connected to the outer surface of the adjustment stud bolt rod.

[0012] Preferably, a fixed box is fixedly installed in the middle of the detection strip, a sliding frame is slidably installed inside the fixed box, a protective strip is fixedly installed on one side of the sliding frame, a detection rolling ball is movably installed inside the protective strip, and a mutually repelling magnetic pole block is arranged between the other side of the sliding frame and the inner wall of the fixed box.

[0013] Preferably, protection key sheets are fixedly installed at both ends of the protective strip, and the protection key sheets are arranged on one side of the pressure contact sensor. An auxiliary reset buckle plate is rotatably installed at the oblique angle of the detection strip, and an elastic pad is arranged between the inner surface of the auxiliary reset buckle plate and the outer surface of the detection strip.

[0014] Preferably, a car door fixing frame is fixedly installed on the upper surface of one side of the car door guard plate detection auxiliary frame, a car door anti-collision limit ring is fixedly installed on the side surface of the car door fixing frame close to the guard plate assembly detection probe arm assembly, and a car door fixing clamp and a guard plate fixing clamp are arranged on the outer side of the car door anti-collision limit ring.

[0015] On the other hand, the present invention also provides a method for detecting the assembly of an automobile door guard plate, comprising the following steps: step 1, assembling the automobile door guard plate, using a guard plate fixing fixture and an automobile door fixing fixture to respectively fix the automobile door guard plate and the automobile door and complete the assembly, and loosening the separate fixation of the automobile door guard plate; Step 2: Detect the installation status of accessories. Through intelligent control of the control output device and cooperation with the mechanical arm device, the guard plate assembly detection probe arm assembly is flexibly inserted into the assembly gap between the car door guard plate and the car door. The rack group 2 cooperates with the telescopic rod to realize the rotation of the rotating connector so that the two groups of probe rods can rotate and extend relative to each other. After the probe rods rotate and unfold, the bevel gear 1 cooperates with the drive motor to make the probe rods flip 90 degrees relative to each other, so that the image acquisition device can capture and output image data of the bottom and bottom of the car door guard plate, and intelligently identify whether the various accessories on the inside of the door guard plate are installed in place. Step three, check the tightening status of the bolts. When the probe rod is horizontally unfolded and flipped 90 degrees relative to gear one and is below rack set one, the threaded rod driving assembly and rack set one cooperate to move downward to adjust the rotation of the stud bolt rod. The probe bar moves relatively outward in cooperation with the adjustment of the stud bolt rod, and contacts the assembly space of the door guard plate and the inner side of the door. The pressure contact sensor generates a pressure signal. The pressure contact sensor is symmetrically arranged to perform pressure tests on both sides of the assembly space of the door guard plate and the inner side of the door. As the probe bar moves, the extrusion pressure of the pressure contact sensor changes to obtain a pressure signal change value. Once a large difference appears in the pressure change values ​​on both sides, it can be determined that the door guard plate bolts are loose. Step 4. After the detection is completed, the detection strip will first retract inward. After the detection strip is retracted, the bevel gear 2 is driven to reverse and flip the probe rod to reset. Finally, the connecting head is rotated to rotate the probe rod to the inside of the probe rod recovery shell. At this time, the robotic arm equipment and the telescopic frame can cooperate to make the guard plate assembly detection probe arm assembly detached from the inside of the car door guard plate as a whole, and the detection is completed.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Through the cooperation of the robotic arm equipment and the guard plate assembly detection probe arm assembly, the probe rod is equipped with an image acquisition device and a pressure contact sensor, which is extended into the gap after the automobile door guard plate is assembled. The image of the bottom of the automobile door guard plate is acquired and output to detect whether the accessories are installed in place. The pressure detection signal of the pressure contact sensor is amplified in conjunction with the detection strip to accurately detect whether the screws are tightly installed, thereby replacing manual observation to avoid errors, solving the problem of possible observation errors in the prior art when manually operating auxiliary tools to perform observation and identification to complete detection, and improving the efficiency of automobile door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the detection state structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the detection end state structure of the present invention.

[0020] Figure 4 It is a structural schematic diagram of one side of the detection end state of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the robot arm device and the guard plate assembly detection probe arm component of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the guard plate assembly detection probe arm assembly of the present invention.

[0023] Figure 7 It is a schematic diagram of the inner structure of the fixed protective shell of the present invention.

[0024] Figure 8 It is a schematic structural diagram of a rack assembly in a descending state of the present invention.

[0025] Fig. 9 It is a schematic diagram of the expanded structure of the probe rod of the present invention.

[0026] Fig.10 It is a schematic diagram of the probe rod flipping structure of the present invention.

[0027] Fig.11 It is a schematic diagram of the folding structure of the probe rod of the present invention.

[0028] Fig.12 It is a schematic diagram of the structure comparing the extended state and the retracted state of the probe rod and the probe strip of the present invention.

[0029] Fig.13 It is a schematic diagram of the structure comparing the extended state and the retracted state of the probe rod and the probe strip of the present invention.

[0030] Fig.14 It is a schematic diagram of the comparative structure inside the probe recovery housing of the present invention.

[0031] Fig.15 It is a schematic diagram of the detection method of the present invention.

[0032] In the figure: 1. Automobile door guard plate detection auxiliary frame; 2. Control output device; 3. Automobile door fixing frame; 31. Automobile door anti-collision limit ring; 32. Automobile door fixing fixture; 33. Guard plate fixing fixture; 4. Telescopic frame; 5. Robot arm equipment; 6. Guard plate assembly detection probe arm assembly; 61. Fixed guard shell; 611. Rack group 1; 612. Threaded rod drive assembly; 62. Probe rod recovery guard shell; 621. Rack group 2; 622. Telescopic rod; 623. Drive motor; 624. Conical Gear one; 63, probe rod; 631, detection strip; 6311, fixed box; 63111, sliding frame; 63112, detection rolling ball; 63113, protection strip; 63114, mutually exclusive magnetic pole block; 6312, pressure contact sensor; 6313, auxiliary reset buckle plate; 6314, protection key; 632, adjustment stud bolt rod; 6321, gear one; 633, bevel gear two; 64, image acquisition device; 65, rotating connector; 651, gear two. DETAILED DESCRIPTION

[0033] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] For example, see Figures 1 to 15The present invention provides a technical solution: an automobile door guard plate assembly detection auxiliary tool, comprising an automobile door guard plate detection auxiliary frame 1, a control output device 2 is arranged on one side of the automobile door guard plate detection auxiliary frame 1, a telescopic frame 4 is arranged at the bottom of the automobile door guard plate detection auxiliary frame 1, a mechanical arm device 5 is fixedly installed above the telescopic frame 4, a guard plate assembly detection probe arm assembly 6 is arranged on one side of the mechanical arm device 5, the guard plate assembly detection probe arm assembly 6 comprises a fixed protective shell 61, a probe rod recovery protective shell 62 and a probe rod 63, the probe rod 63 is symmetrically arranged on both sides of the fixed protective shell 61, an image acquisition device 64 is fixedly installed on the inner wall of one side of the probe rod 63, the upper end of the fixed protective shell 61 is fixedly connected to the output shaft of the mechanical arm device 5, the probe rod recovery protective shell 62 is fixedly installed on one side of the lower surface of the fixed protective shell 61, and a rotating connector 65 is arranged on the other side of the probe rod 63. 3 is rotatably mounted in the middle of the rotating connector 65, and the rotating connector 65 is rotatably mounted on the inner wall of the probe rod recovery housing 62. A gear 2 651 is fixedly mounted on one side of the rotating shaft of the rotating connector 65. A telescopic rod 622 is fixedly mounted on the inner upper side of the probe rod recovery housing 62. A rack set 2 621 is slidably mounted on the inner surface of the probe rod recovery housing 62. The side surfaces of the rack set 2 621 are respectively meshed with the side surfaces of the gear 2 651. The lower end of the telescopic rod 622 is fixedly connected to the middle of the rack set 2 621. A driving motor 623 is fixedly mounted on the inner lower side of the probe rod recovery housing 62. A bevel gear 1 624 is fixedly mounted on the output shaft of the driving motor 623. A bevel gear 2 633 is fixedly mounted on one end of the rotating shaft connecting the probe rod 63 and the image acquisition device 64. The bevel gear 2 633 is arranged on both sides above the bevel gear 1 624.In this embodiment, the automobile door guard plate detection auxiliary frame 1 is equipped with an automobile door fixing frame 3 and a telescopic frame 4, and the intelligent control is carried out by controlling the output device 2 to cooperate with the mechanical arm device 5 to realize the flipping, pushing, extending and retracting actions of the guard plate assembly detection probe arm assembly 6, so that the guard plate assembly detection probe arm assembly 6 can be flexibly inserted into the assembly gap between the automobile door guard plate and the automobile door. The fixed protective shell 61 and the probe rod recovery protective shell 62 constitute a protective shell assembly. The probe rod 63 mainly plays the role of carrying the image acquisition device 64, and the rotating connecting head 65 plays the role of installing and connecting the probe rod recovery protective shell 62 and the probe rod 63. The telescopic rod 622 pushes the rack group 2 621 to achieve the use of the rack group 2 621 to drive the gear 2 651 to rotate, and then The purpose of rotating the rotating connector 65 is to rotate the two sets of probe rods 63 so that they can rotate and extend relative to each other. After the probe rods 63 rotate and unfold, the bevel gear 1 624 drives the driving motor 623 to rotate. The driving motor 623 can drive the bevel gear 2 633 to rotate so that the probe rods 63 can be relatively flipped 90 degrees, so that the image acquisition device 64 can capture images of the bottom and bottom of the car door guard plate. The image acquisition device 64 can connect to the control output device 2 through data, network, and Bluetooth to output image data. The specific connection method is a mature existing technology and will not be repeated here. It can achieve the effect of intelligently identifying whether the various accessories on the inner side of the door guard plate are installed in place, thereby improving the accuracy and convenience of detection. ;

[0035] For example 2, please refer to Figures 1 to 15On the basis of the first embodiment, in order to enable the probe rod 63 to detect the interference between the door guard plate and the inner assembly space of the vehicle door after the probe rod 63 is flipped, the present embodiment further proposes that a rack group 611 is slidably installed on the inner side of the fixed protective shell 61, and a threaded rod driving assembly 612 for driving the rack group 611 to slide is provided in the middle of the inner side of the fixed protective shell 61, and a detection strip 631 is symmetrically slidably installed on the inner side of the probe rod 63, and a pressure contact sensor 6312 is fixedly installed on the side wall of the detection strip 631, and a sliding groove adapted to the detection strip 631 is provided on the side wall of the probe rod 63, and an adjusting stud bolt rod 632 is rotatably installed on the inner wall of one side of the probe rod recovery protective shell 62 of the probe rod 63, and a gear 6321 is fixedly installed on the outer surface of one end of the adjusting stud bolt rod 632 on the same side as the rack group 611, and an inner wall of one side of the detection strip 631 is threadedly connected with the outer surface of the adjusting stud bolt rod 632; in the present embodiment In the embodiment, when the probe rod 63 is horizontally unfolded and flipped 90 degrees relative to each other, the gear 6321 will be below the rack set 611. At this time, the threaded rod driving assembly 612 drives the rack set 611 to move downward to push the gear 6321 to rotate, so as to adjust the rotation of the stud bolt rod 632. The detection strip 631 moves relatively outward with the cooperation of the adjustment stud bolt rod 632, and contacts the assembly space between the door guard plate and the inner side of the vehicle door. The pressure contact sensor 6312 generates a pressure signal. The pressure contact sensor 6312 is symmetrically arranged to perform pressure testing on both sides. As the detection strip 631 moves, the extrusion pressure of the pressure contact sensor 6312 will also change, and the pressure signal change value is obtained. Once there is a large difference in the pressure change values ​​on both sides, it can be determined that the bolts at this location of the door guard plate are loose, so as to conveniently detect the tightness of the screws after the assembly of the automobile door guard plate.

[0036] For example 3, please refer to Figures 1 to 15On the basis of the second embodiment, in order to make the local detection result of the pressure contact sensor 6312 more accurate, the present embodiment further proposes that a fixed box 6311 is fixedly installed in the middle of the detection strip 631, a sliding frame 63111 is slidably installed inside the fixed box 6311, a protective strip 63113 is fixedly installed on one side of the sliding frame 63111, a detection rolling ball 63112 is movably installed inside the protective strip 63113, a mutually exclusive magnetic pole block 63114 is arranged between the other side of the sliding frame 63111 and the inner side wall of the fixed box 6311, and protective key sheets 6314 are fixedly installed at both ends of the protective strip 63113. An auxiliary reset buckle plate 6313 is rotatably installed at one side of the pressure contact sensor 6312 at the oblique angle of the detection strip 631, and an elastic pad is arranged between the inner surface of the auxiliary reset buckle plate 6313 and the outer surface of the detection strip 631; in the present embodiment, the sliding frame 63111 inside the fixed box 6311 generates an outward squeezing force due to the mutual repulsion of the magnetic force of the mutually repelling magnetic pole block 63114. When the automobile door guard plate is tightly installed, the protective strip 63113 is resisted at this time, so that the protective key sheet 6314 continues to press on the pressure contact sensor 6312, and the pressure value changes on both sides are basically maintained within a certain range, but as the detection The movement of bar 631 causes the detection ball 63112 to roll. Once the bolt at that place is loose, the magnetic mutual repulsion of the repelling magnetic pole block 63114 will generate a driving force on the loose part. At this time, the protection bar 63113 will be pushed outward and accompanied by vibration, so that the protection key piece 6314 cancels or reduces the pressure on the pressure contact sensor 6312, causing the pressure signal to disappear or change significantly, that is, to achieve the purpose of amplifying the detection signal of the loose screw. In this way, the pressure contact sensor 6312 can detect whether the local bolt is tightened more accurately. The auxiliary reset buckle plate 6313 mainly plays the role of, under the action of the elastic gasket, as the detection bar 6 31 moves relatively outward, the elastic gasket is squeezed, and one end of the auxiliary reset buckle plate 6313 is pressed by the inner side of the probe rod 63. The auxiliary reset buckle plate 6313 is flipped over on the side close to the protection key piece 6314. At this time, the protection key piece 6314 has space to be pushed outward at the loose position. However, when the detection bar 631 moves inward to shrink, the auxiliary reset buckle plate 6313 buckles inward under the reset action of the elastic gasket, which has the effect of retracting the protection key piece 6314 inward. The protection key piece 6314 mainly protects the pressure contact sensor 6312. After being stored, it is convenient for the probe rod 63 to perform flipping, recovery and movement and other actions to avoid bumps.

[0037] Example 4, please refer to Figures 1 to 15On the basis of the third embodiment, in order to facilitate detection, the present embodiment further proposes that a car door fixing frame 3 is fixedly installed on one side upper surface of the car door guard plate detection auxiliary frame 1, and a car door anti-collision limit ring 31 is fixedly installed on one side surface of the car door fixing frame 3 close to the guard plate assembly detection probe arm assembly 6, and a car door fixing clamp 32 and a guard plate fixing clamp 33 are arranged on the outer side of the car door anti-collision limit ring 31; in the present embodiment, the car door fixing frame 3 mainly plays the role of fixing the assembled car door and car door guard plate for the convenience of detection, and the car door anti-collision limit ring 31 mainly plays the role of limiting and preventing For the purpose of impact buffering, the automobile door fixing clamp 32 and the guard plate fixing clamp 33 mainly serve the purpose of assisting in fixing the automobile door, so as to facilitate the guard plate assembly detection probe arm assembly 6 to extend for detection. In addition, the automobile door anti-collision limit ring 31 and the automobile door fixing clamp 32 are both in independent working states, and can fix the automobile door guard plate and the automobile door respectively, so as to facilitate the assembly of the automobile door guard plate to the automobile door. After the assembly is completed, the separate fixation of the automobile door guard plate can be released for detection, so as to realize the assembly and detection connection after the assembly is completed, avoid the need to install the automobile door multiple times, and improve production efficiency.

[0038] For example 5, please refer to Figures 1 to 15On the basis of the fourth embodiment, this embodiment further proposes a method for detecting the assembly of an automobile door guard plate, comprising the following steps: step one, assembling the automobile door guard plate, using the guard plate fixing fixture 33 and the automobile door fixing fixture 32 to respectively fix the automobile door guard plate and the automobile door and complete the assembly, and loosening the separate fixation of the automobile door guard plate; step two, detecting the installation status of the accessories, by controlling the output device 2 to perform intelligent control and cooperate with the mechanical arm device 5 to flexibly insert the guard plate assembly detection probe arm assembly 6 into the assembly gap between the automobile door guard plate and the automobile door, and the rack group 2 621 cooperates with the telescopic rod 622 to realize the rotation The movable connector 65 rotates so that the two groups of probe rods 63 can rotate and extend relative to each other. After the probe rod 63 rotates and unfolds, the bevel gear 1 624 cooperates with the drive motor 623 to make the probe rod 63 flip 90 degrees relative to each other, so that the image acquisition device 64 can capture and output image data of the bottom and bottom of the automobile door guard plate, and intelligently identify whether the various accessories on the inner side of the door guard plate are installed in place; Step three, perform bolt tightening status detection, when the probe rod 63 is horizontally unfolded and flipped 90 degrees relative to each other, the gear 1 6321 is below the rack group 1 611, at this time, the threaded rod drive assembly 612 cooperates with the rack group 1 611 to move downward, The stud bolt rod 632 is adjusted to rotate, and the detection strip 631 moves relatively outward with the cooperation of the stud bolt rod 632, so as to contact the assembly space inside the door guard plate and the vehicle door, and the pressure contact sensor 6312 generates a pressure signal. The pressure contact sensor 6312 is symmetrically arranged to perform pressure tests on both sides of the assembly space between the door guard plate and the vehicle door. As the detection strip 631 moves, the squeezing force of the pressure contact sensor 6312 changes to obtain a pressure signal change value. Once a large difference appears between the pressure change values ​​on both sides, it can be determined that the door guard plate bolts are loose. Step 4: Detection After completion, the detection strip 631 first retracts inward. It is particularly noted that the thread condition of the stud bolt rod 632 needs to be designed according to the flipping direction of the probe rods 63 on both sides, and the movement state of the detection strip 631 inside the two sets of probe rods 63 must be kept consistent. After the detection strip 631 is retracted, the bevel gear 2 633 is driven to reverse and the probe rod 63 is flipped and reset. Finally, the connecting head 65 is rotated to rotate the probe rod 63 to retract to the inside of the probe rod recovery shell 62. At this time, the mechanical arm device 5 cooperates with the telescopic frame 4 to make the guard plate assembly detection probe arm assembly 6 detach from the inside of the car door guard plate as a whole, and the detection is completed.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile door panel assembly detection auxiliary tool, comprising an automobile door panel detection auxiliary frame (1), a control output device (2) is arranged on one side of the automobile door panel detection auxiliary frame (1), a telescopic frame (4) is arranged at the bottom of the automobile door panel detection auxiliary frame (1), and a mechanical arm device (5) is fixedly installed above the telescopic frame (4), characterized in that: A guard plate assembly detection probe arm assembly (6) is provided on one side of the mechanical arm device (5); the guard plate assembly detection probe arm assembly (6) comprises a fixed protective shell (61), a probe rod recovery protective shell (62) and a probe rod (63); the probe rod (63) is symmetrically arranged on both sides of the fixed protective shell (61); and an image acquisition device (64) is fixedly mounted on the inner wall of one side of the probe rod (63).

2. The automobile door panel assembly detection aid according to claim 1, characterized in that: The upper end of the fixed protective shell (61) is fixedly connected to the output shaft of the robot arm device (5); the probe rod recovery protective shell (62) is fixedly mounted on one side of the lower surface of the fixed protective shell (61); a rotating connector (65) is provided on the other side of the probe rod (63); the probe rod (63) is rotatably mounted on the middle part of the rotating connector (65); the rotating connector (65) is rotatably mounted on the inner side wall of the probe rod recovery protective shell (62); and a gear 2 (651) is fixedly mounted on one side of the rotating shaft of the rotating connector (65).

3. The automobile door panel assembly detection aid according to claim 1, characterized in that: A telescopic rod (622) is fixedly installed on the upper inner side of the probe rod recovery housing (62), and a rack group 2 (621) is slidably installed on the inner surface of the probe rod recovery housing (62). The side surfaces of the rack group 2 (621) are respectively meshed with the side surfaces of the gear 2 (651), and the lower end of the telescopic rod (622) is fixedly connected to the middle part of the rack group 2 (621).

4. The automobile door panel assembly detection aid according to claim 1, characterized in that: A driving motor (623) is fixedly mounted on the lower inner side of the probe rod recovery housing (62); a bevel gear 1 (624) is fixedly mounted on the output shaft of the driving motor (623); a bevel gear 2 (633) is fixedly mounted on one end of the rotating shaft connecting the probe rod (63) and the image acquisition device (64); and the bevel gear 2 (633) is arranged on both sides above the bevel gear 1 (624).

5. The automobile door panel assembly detection aid according to claim 1, characterized in that: A rack set (611) is slidably mounted on the inner side of the fixed protective shell (61), and a threaded rod driving assembly (612) for driving the rack set (611) to slide is provided in the middle of the inner side of the fixed protective shell (61).

6. The automobile door panel assembly detection aid according to claim 1, characterized in that: A detection strip (631) is symmetrically and slidably mounted on the inner side of the detection rod (63), a pressure contact sensor (6312) is fixedly mounted on the side wall of the detection strip (631), a sliding groove adapted to the detection strip (631) is provided on the side wall of the detection rod (63), an adjustment stud bolt rod (632) is rotatably mounted on the inner wall of one side of the detection rod (63) close to the detection rod recovery casing (62), a gear wheel (6321) is fixedly mounted on the outer surface of one end of the adjustment stud bolt rod (632) on the same side as the rack assembly (611), and the inner wall of one side of the detection strip (631) is threadedly connected to the outer surface of the adjustment stud bolt rod (632).

7. The automobile door panel assembly detection aid according to claim 6, characterized in that: A fixed box (6311) is fixedly installed in the middle of the detection strip (631), a sliding frame (63111) is slidably installed inside the fixed box (6311), a protective strip (63113) is fixedly installed on one side of the sliding frame (63111), a detection rolling ball (63112) is movably installed inside the protective strip (63113), and a mutually exclusive magnetic pole block (63114) is arranged between the other side of the sliding frame (63111) and the inner wall of the fixed box (63111).

8. The automobile door panel assembly detection aid according to claim 7, characterized in that: Protection key sheets (6314) are fixedly installed at both ends of the protection strip (63113), and the protection key sheet (6314) is arranged on one side of the pressure contact sensor (6312). An auxiliary reset buckle plate (6313) is rotatably installed at the oblique angle of the detection strip (631), and an elastic pad is arranged between the inner surface of the auxiliary reset buckle plate (6313) and the outer surface of the detection strip (631).

9. The automobile door panel assembly detection aid according to claim 1, characterized in that: A vehicle door fixing frame (3) is fixedly mounted on one upper surface of the vehicle door guard plate detection auxiliary frame (1); a vehicle door anti-collision limit ring (31) is fixedly mounted on one side surface of the vehicle door fixing frame (3) close to the guard plate assembly detection probe arm assembly (6); and a vehicle door fixing clamp (32) and a guard plate fixing clamp (33) are arranged on the outer side of the vehicle door anti-collision limit ring (31).

10. A method for detecting the assembly of an automobile door panel, implemented by the automobile door panel assembly detection aid according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: step 1, assembling the automobile door guard plate, using a guard plate fixing fixture (33) and an automobile door fixing fixture (32) to respectively fix the automobile door guard plate and the automobile door and complete the assembly, and loosening the separate fixation of the automobile door guard plate; Step 2, performing an accessory installation status detection, by intelligently controlling the control output device (2) and cooperating with the mechanical arm device (5) to flexibly insert the guard plate assembly detection probe arm assembly (6) into the assembly gap between the automobile door guard plate and the automobile door, the rack group 2 (621) and the telescopic rod (622) cooperate to realize the rotation of the rotating connector (65) so that the two groups of probe rods (63) can rotate and extend relative to each other, after the probe rods (63) rotate and unfold, the bevel gear 1 (624) and the drive motor (623) cooperate to make the probe rods (63) relatively flip 90 degrees, so that the image acquisition device (64) can capture images of the bottom and bottom of the automobile door guard plate and output image data, and intelligently identify whether each accessory inside the door guard plate is installed in place; Step 3, performing a bolt tightening condition detection, when the probe rod (63) is horizontally unfolded and flipped 90 degrees relative to the gear one (6321) and is located below the rack group one (611), the threaded rod driving assembly (612) and the rack group one (611) cooperate to move downward to adjust the stud bolt rod (632) to rotate, and the probe bar (631) moves relatively outward under the cooperation of the adjustment stud bolt rod (632) to contact the door guard plate and the inner assembly space of the vehicle door, and the pressure contact sensor (6312) generates a pressure signal. The pressure contact sensor (6312) is symmetrically arranged to perform pressure testing on both sides of the door guard plate and the inner assembly space of the vehicle door. As the probe bar (631) moves, the extrusion pressure of the pressure contact sensor (6312) changes to obtain a pressure signal change value. Once a large difference appears in the pressure change values ​​on both sides, it can be determined that the door guard plate bolts are loose. Step 4, after the detection is completed, the detection strip (631) first shrinks inwardly. After the detection strip (631) shrinks, the second bevel gear (633) is driven to reverse and flip the probe rod (63) to reset. Finally, the connecting head (65) is rotated to rotate the probe rod (63) to shrink to the inside of the probe rod recovery shell (62). At this time, the mechanical arm device (5) cooperates with the telescopic frame (4) to enable the guard plate assembly detection probe arm assembly (6) to be separated from the inside of the automobile door guard plate as a whole, and the detection is completed.

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