Automobile front end frame rivet nut neglected loading detection tool

By setting multiple detection units and horizontal drive units on the front frame of the vehicle, the problem of missing installations and inspections caused by the scattered distribution of nuts is solved, achieving efficient and comprehensive inspection results.

CN224109661UActive Publication Date: 2026-04-10QINGYUAN FUQIANG AUTOMOBILE PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing technologies are prone to missing or under-inspected nuts when inspecting the front frame of a car, especially when the nuts are scattered, making it difficult to achieve efficient and comprehensive inspection.

Method used

A tooling for detecting missing rivet nuts on the front frame of an automobile is designed. Multiple first detection units are located below the frame, and a horizontal drive unit is set around the frame. A second detection unit detects the nuts on the side of the frame under the drive. The two work together to achieve comprehensive detection.

Benefits of technology

It enables simultaneous inspection of nuts on the sides and bottom of the front frame, improving inspection efficiency and quality while reducing the difficulty of the work for workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of automobile part neglected loading detection, and discloses an automobile front end frame rivet nut neglected loading detection tool which comprises a rack, a plurality of first detection units, a second detection unit and a horizontal driving unit. The workbench is provided with a supporting unit used for supporting the front-end frame and a pressing unit used for pressing the front-end frame on the supporting unit. The first detection unit is located below the front end frame, the horizontal driving units are arranged around the front end frame, and the second detection unit is connected to the horizontal driving units. According to the neglected loading detection tool, through cooperation of the first detection unit and the second detection unit, neglected loading detection of the side face and the bottom of the front-end frame can be completed at the same time, the quality and efficiency are improved, and the operation difficulty of workers is reduced.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile accessory missing detection, in particular to a missing detection tool for a front end frame rivet nut of an automobile. BACKGROUND

[0002] The front end frame is an important component of an automobile, and is used to cooperate with the automobile front cover for locking, and the front end frame is usually provided with a front penetrating lamp and a front bumper. The mounting points provided by the front end frame are usually embedded with rivet nuts. Due to the arrangement environment of the whole vehicle, these mounting points are usually scattered and irregularly distributed, and the number of mounting points varies according to different vehicle configurations. As disclosed in Chinese patent CN220743169U, a steel-plastic front end frame structure, it can be seen from the above technical solution that the structure of the front end frame is complex, and the mounting points are numerous and scattered.

[0003] The traditional insert detection relies on manual line marking and point detection. The operator assembles and detects, and the missing and missed detection may occur easily, and it is difficult to prevent the defective products from flowing out. In order to solve this problem, Chinese patent CN209327588U discloses a front end frame assembly and inspection integrated tool, which comprises a support frame and an inspection electric box. The top of the support frame is provided with a table plate, the top of the table plate is provided with an assembly table plate, the other side of the support frame is provided with a mechanical valve, the side of the assembly table plate is provided with a tool plate, and the side of the tool plate is provided with a workpiece pressing clamp, and the both ends of the tool plate are provided with positioning blocks.

[0004] In the above technical solution, if the nut part is missing or not installed in place, the corresponding inspection lamp will not light up. When all thirty inspection lamps are on, loosen the workpiece pressing clamp, and remove the inspection lamp on the tool. If the corresponding inspection lamp does not light up, use the rivet air gun to continue installing the nut until the indicator light is on, then take out the front end frame and continue to install the next product. In order to facilitate the employees to quickly, easily and simply complete the nut assembly and nut missing detection integration, the operation time is greatly saved. However, the above technical solution is only applicable to the case that all nuts are located on the bottom surface of the front end frame, and is not applicable to the case that the nuts are scattered on the bottom surface and the side surface of the front end frame. CONTENT OF THE UTILITY MODEL

[0005] The automobile front end frame pull rivet nut missing detection tool provided by the application can detect the missing of the nuts on the side and bottom of the front end frame simultaneously, improve the quality and efficiency, and reduce the working difficulty of workers.

[0006] To achieve the above object, the application provides the following technical scheme.

[0007] The automobile front end frame pull rivet nut missing detection tool comprises a rack, a plurality of first detection units, a second detection unit and horizontal driving units.

[0008] The plurality of first detection units and the horizontal driving units are arranged on the workbench.

[0009] The first detection units are arranged below the front end frame and are used for detecting the nuts on the bottom of the front end frame.

[0010] The horizontal driving units are arranged around the front end frame, the second detection units correspond to the horizontal driving units one by one, the second detection units are connected to the horizontal driving units, the horizontal driving units are used for driving the second detection units to feed towards the side of the front end frame, and the second detection units are used for detecting the nuts on the side of the front end frame.

[0011] Preferably, the horizontal driving units comprise first horizontal driving mechanisms, the first horizontal driving mechanisms are arranged around the front end frame, the first horizontal driving mechanisms comprise first support blocks, first cylinders connected to the first support blocks, first supports connected to the driving ends of the first cylinders, one or more second detection units are arranged on the first supports, and the second detection units are matched with the positions of the nuts on the side of the front end frame.

[0012] Preferably, the horizontal driving units further comprise second horizontal driving mechanisms, the second horizontal driving mechanisms are symmetrically arranged on the two sides of the front end frame, the second horizontal driving mechanisms comprise second support blocks, second cylinders connected to the second support blocks, second supports connected to the driving ends of the second cylinders, and the second supports are L-shaped structures.

[0013] The second detection units are connected to the horizontal parts and vertical parts of the second supports, the two sides of the front end frame are provided with protrusions, and the second detection units on the second supports are matched with the positions of the nuts on the protrusions.

[0014] Preferably, the support unit comprises first limiting blocks for supporting both sides of the front end frame and second limiting blocks for supporting both ends of the front end frame, and the first limiting blocks and the second limiting blocks cooperate to limit the movement of the front end frame on the workbench.

[0015] Preferably, the second limiting block is further provided with a first metal induction proximity switch.

[0016] Preferably, the first detection unit is a second metal induction proximity switch, and the second metal induction proximity switch is connected to the workbench through a connecting frame; and the second detection unit is a third metal induction proximity switch.

[0017] Preferably, the pressing unit is a pressing cylinder, and the pressing cylinder is arranged at the middle part of the front end frame.

[0018] Preferably, the workbench is obliquely arranged.

[0019] Preferably, the workbench is further provided with a display module, the display module is electrically connected with the first detection unit and the second detection unit, the display module is located at the middle part of the front end frame, and the display module is used for displaying the detection results of the first detection unit and the second detection unit.

[0020] Preferably, the bottom of the rack is provided with a supporting leg and a lockable roller, and the rack is further provided with an indicator lamp, the indicator lamp is electrically connected with the display module, and the indicator lamp and the display module cooperate to feedback the detection results.

[0021] Compared with the prior art, the application has the following beneficial effects:

[0022] The missing detection tool sets multiple first detection units below the front end frame, can detect the missing nuts at the bottom of the front end frame, and sets the second detection unit on the horizontal driving unit around the front end frame, which can detect the missing nuts at the side of the front end frame under the driving of the horizontal driving unit. Through the cooperation of the first detection unit and the second detection unit, the missing detection of the side and the bottom of the front end frame can be completed at the same time, the quality and efficiency are improved, and the working difficulty of workers is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of the missing detection tool of embodiment 1;

[0024] Figure 2 is a front view of the missing detection tool of embodiment 1;

[0025] Figure 3 is Figure 2 A-A sectional view of

[0026] Figure 4 is a working schematic view of the missing detection tool of embodiment 1;

[0027] Wherein, each reference number is as follows:

[0028] Frame 1; First detection unit 2; Second detection unit 3; Horizontal drive unit 4; Pressing unit 5; Workbench 11; Roller 12; Foot 13; Indicator light 14; Second metal induction proximity switch 21; Third metal induction proximity switch 31; First horizontal drive mechanism 41; Second horizontal drive mechanism 42; Pressing cylinder 51; Support unit 111; Display module 112; First support block 411; First cylinder 412; First bracket 413; Second support block 421; Second cylinder 422; Second bracket 423; First limiting block 1111; Second limiting block 1112; First metal induction proximity switch 1113; First metal induction proximity switch 1113; Horizontal part 4231; Vertical part 4232; Front end frame A; Projection B; Nut C. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0030] Embodiment 1

[0031] Please refer to Figures 1-4 A front end frame pull rivet nut missing detection tool for automobile, comprising a frame 1, a plurality of first detection units 2, a second detection unit 3 and a horizontal drive unit 4, the frame 1 is provided with a workbench 11, the workbench 11 is provided with a support unit 111 for supporting the front end frame A and a pressing unit 5 for pressing the front end frame A on the support unit 111;

[0032] The plurality of first detection units 2 and the horizontal drive unit 4 are both arranged on the workbench 11;

[0033] The first detection unit 2 is located below the front end frame A and is used for detecting the nut C located at the bottom of the front end frame A;

[0034] The plurality of horizontal drive units 4 are arranged around the front end frame A, the second detection unit 3 corresponds to the horizontal drive unit 4 one by one, the second detection unit 3 is connected to the horizontal drive unit 4, the horizontal drive unit 4 is used for driving the second detection unit 3 to feed to the side surface of the front end frame A, and the second detection unit 3 is used for detecting the nut C located at the side surface of the front end frame A.

[0035] In this design, the operator places the front frame A on the support unit 111 and presses it by the pressing unit 5, wherein the front frame A is in contact with the support unit 111 at the same time as the first detection unit 2, the operator then starts the horizontal drive unit 4, and under the drive of the horizontal drive unit 4, the second detection unit 3 feeds to the side of the front frame A and detects the nut C on the side of the front frame A. After the detection is completed, the horizontal drive unit 4 and the pressing unit 5 are reset, and the front frame A is taken out.

[0036] In this way, the cooperation of the first detection unit 2 and the second detection unit 3 can simultaneously complete the missing detection of the side and bottom of the front frame A, improve the quality and efficiency, and reduce the difficulty of the worker's work.

[0037] Implicitly, the workbench 11 is also provided with a switch, which controls the action of the horizontal drive unit 4 and the pressing unit 5.

[0038] Preferably, the horizontal drive unit 4 comprises a first horizontal drive mechanism 41; a plurality of first horizontal drive mechanisms 41 are arranged around the front frame A, the first horizontal drive mechanism 41 comprises a first support block 411, a first cylinder 412 connected to the first support block 411, a first support 413 connected to the driving end of the first cylinder 412, and one or more second detection units 3 are arranged on the first support 413, and the second detection unit 3 matches the position of the nut C on the side of the front frame A.

[0039] In a specific embodiment, the number of second detection units 3 on the first support 413 needs to be determined according to the number of nuts C on the side of the front frame A, that is, when there are multiple nuts C with large spacing on the side of the front frame A, the first support 413 only needs to be provided with one second detection unit 3, and when there are multiple nuts C with small spacing or arranged in an up-down manner on the side of the front frame A, the first support 413 can be provided with a number of second detection units 3 according to the position of the nut C. In actual use, the first cylinder 412 drives the second detection unit 3 on the first support 413 to move to the side of the front frame A to realize missing detection of the nut C at the corresponding position.

[0040] In the embodiment, the horizontal driving unit 4 further comprises a second horizontal driving mechanism 42, which is symmetrically arranged on both sides of the front end frame A, and the second horizontal driving mechanism 42 comprises a second supporting block 421, a second cylinder 422 connected to the second supporting block 421, and a second support 423 connected to the driving end of the second cylinder 422. The second support 423 is in an L-shaped structure, and the second detection unit 3 is connected to the horizontal part 4231 and the vertical part 4232 of the second support 423. The front end frame A is provided with a protrusion B on both sides, and the second detection unit 3 on the second support 423 is matched with the position of the nut C on the protrusion B.

[0041] Specifically, the front end frame A is further provided with a protrusion B on both sides, such as the L-shaped support part in the steel-plastic front end frame A structure disclosed in Chinese Patent CN220743169U. In order to meet the detection requirements of the protrusion B, an L-shaped second support 423 is adopted, and a second detection unit 3 is connected to the horizontal part 4231 and the vertical part 4232 of the second support 423. Under the driving of the second cylinder 422, the second detection unit 3 on the second support 423 moves synchronously to the protrusion B direction, and detects the nuts C vertically distributed on the protrusion B, solving the problem that two second cylinders 422 are required to realize detection under the distribution condition.

[0042] It should be noted here that the vertical distribution mentioned above is the nuts C on the two faces of the protrusion B that are vertically distributed, and the horizontal part 4231, the vertical part 4232 and the two faces that are vertically distributed are matched.

[0043] In the embodiment, the supporting unit 111 comprises a first limiting block 1111 for supporting both sides of the front end frame A and a second limiting block 1112 for supporting both ends of the front end frame A. The first limiting block 1111 and the second limiting block 1112 cooperate to limit the movement of the front end frame A on the workbench 11.

[0044] It is implied that the first limiting block 1111 and the second limiting block 1112 can limit the movement of the front end frame A on the workbench 11, so the first limiting block 1111 and the second limiting block 1112 are both in an L-shaped structure. Specifically, after the front end frame A is placed on the first limiting block 1111 and the second limiting block 1112, the first limiting block 1111 simultaneously contacts both sides and the bottom of the front end frame A, and the part contacting the bottom is only a partial area close to the side surface of the front end frame A. Similarly, the second limiting block 1112 simultaneously contacts both ends and the bottom of the front end frame A, and the part contacting the bottom is only a partial area close to the end surface of the front end frame A. Preferably, the parts contacted by the first limiting block 1111 and the second limiting block 1112 are both the middle parts of the edge parts of the front end frame A.

[0045] Further, the second limiting block 1112 is further provided with a first metal induction proximity switch 1113. After the front end frame A is placed on the first limiting block 1111 and the second limiting block 1112, the first limiting block 1111 and the second limiting block 1112 limit the movement of the front end frame A, and at the same time, the first metal induction proximity switch 1113 matches the position of the corresponding nut C on the side surface of the front end frame A, and at the same time, the first metal induction proximity switch 1113 detects the missing nut C.

[0046] In the embodiment, the first detection unit 2 is a second metal induction proximity switch 21, and the second metal induction proximity switch 21 is connected to the workbench 11 through a connecting frame; and the second detection unit 3 is a third metal induction proximity switch 31.

[0047] It should be noted that the structures and functions of the first metal induction proximity switch 1113, the second metal induction proximity switch 21, and the third metal induction proximity switch 31 are completely the same. The first metal induction proximity switch 1113, the second metal induction proximity switch 21, and the third metal induction proximity switch 31 are connected through their own locking nuts C. It should be further noted that the metal induction proximity switch is a non-contact sensor, which mainly triggers a switch signal by sensing the electromagnetic field change when a metal object enters the sensing area. That is, when the metal object approaches the sensing head to a certain distance range, the switch will be triggered without actually contacting the target object.

[0048] It should be further noted that, as shown in Figures 1-4 , the first detection unit 2 is provided on the workbench 11 and cannot be actuated, and has no connection relationship with the first limiting block 1111; and the second detection unit 3 can be driven by the horizontal driving unit 4.

[0049] In the embodiment, the pressing unit 5 is a pressing cylinder 51, and the pressing cylinder 51 is arranged in the middle part of the front end frame A. Because a plurality of horizontal driving units 4 are arranged on the outer periphery of the front end frame A, and the front end frame A is a hollow area, the pressing cylinder 51 is arranged in the middle part of the front end frame A to avoid interference and improve space utilization.

[0050] Preferably, the workbench 11 is inclined. The inclined workbench 11 can facilitate the operator to place and take out the front end frame A.

[0051] Further, the workbench 11 is further provided with a display module 112, the display module 112 is electrically connected with the first detection unit 2 and the second detection unit 3, the display module 112 is located in the middle part of the front end frame A, and the display module 112 is used to display the detection results of the first detection unit 2 and the second detection unit 3.

[0052] In actual use, the display module 112 can adopt a display screen. Implicitly, a controller is further arranged inside the rack 1. Specifically, the signals output by the first detection unit 2 and the second detection unit 3 are transmitted to the controller, processed by the controller, and the positions detected by the first detection unit 2 and the second detection unit 3 are determined to have the nut C or not to have the nut C. Then the results are displayed by the display module 112.

[0053] Preferably, the bottom of the rack 1 is provided with a supporting leg 13 and a lockable roller 12. The rack 1 is further provided with an indicator lamp 14, which is electrically connected with the display module 112. The indicator lamp 14 cooperates with the display module 112 to feedback the detection results. Specifically, the indicator lamp 14 can adopt a red-green mode. When the first detection unit 2 and / or the second detection unit 3 detects missing installation, the display module 112 displays missing installation, and the indicator lamp 14 cooperates to light a red light. Conversely, the indicator lamp 14 lights a green light.

[0054] Regarding the display of the display module 112, a corresponding point position mode can be adopted. Specifically, each first detection unit 2 and each second detection unit 3 has a corresponding point position in the display module 112. Each point position also adopts a red-green mode. Specifically, when one of the first detection units 2 does not detect the nut C, the corresponding point position in the display module 112 displays red. When the corresponding point position detects the nut C, the corresponding point position displays green. In this way, the operator can easily find the missing installation position.

[0055] The above description is only the preferred embodiments of the present application. It should be noted that, for those skilled in the art, without departing from the principles of the present application, several improvements or modifications can be made. These improvements or modifications should also be considered as the protection scope of the present application.

Claims

1. An automobile front end frame pull rivet nut missing loading detection tool, comprising a rack, a plurality of first detection units, a second detection unit and a horizontal driving unit, characterized in that, The rack is provided with a workbench, the workbench is provided with a supporting unit for supporting the front end frame and a pressing unit for pressing the front end frame on the supporting unit; A plurality of first detection units and horizontal driving units are arranged on the workbench; The first detection unit is located below the front end frame and is used for detecting nuts located at the bottom of the front end frame. A plurality of horizontal driving units are arranged around the front end frame, the second detection unit corresponds to the horizontal driving unit, the second detection unit is connected to the horizontal driving unit, the horizontal driving unit is used for driving the second detection unit to feed to the side of the front end frame, and the second detection unit is used for detecting nuts located at the side of the front end frame.

2. The automobile front end frame rivet nut missing loading detection tooling of claim 1, wherein, The horizontal driving unit comprises a first horizontal driving mechanism; a plurality of first horizontal driving mechanisms are arranged around the front end frame, the first horizontal driving mechanism comprises a first supporting block, a first cylinder connected to the first supporting block, and a first support connected to the driving end of the first cylinder, one or more second detection units are arranged on the first support, and the second detection unit matches the position of the nut on the side of the front end frame.

3. The automobile front end frame rivet nut missing loading detection tooling of claim 2, characterized in that, The horizontal driving unit further comprises a second horizontal driving mechanism, the second horizontal driving mechanism is symmetrically arranged on both sides of the front end frame, the second horizontal driving mechanism comprises a second supporting block, a second cylinder connected to the second supporting block, and a second support connected to the driving end of the second cylinder, the second support is an L-shaped structure, the second detection unit is connected to the horizontal part and the vertical part of the second support, and the front end frame is provided with a protrusion, the second detection unit located on the second support matches the position of the nut on the protrusion.

4. The automobile front end frame pull rivet nut missing loading detection tooling of claim 1, wherein, The supporting unit comprises first limiting blocks for supporting both sides of the front end frame and second limiting blocks for supporting both ends of the front end frame, and the first limiting blocks and the second limiting blocks cooperate to limit the movement of the front end frame on the workbench.

5. The automobile front end frame rivet nut missing loading detection tooling of claim 4, wherein, The second limiting block is further provided with a first metal induction proximity switch.

6. The automobile front end frame pull rivet nut missing loading detection tooling of claim 1, wherein, The first detection unit is a second metal induction proximity switch, the second metal induction proximity switch is connected to the workbench through a connecting frame; and the second detection unit is a third metal induction proximity switch.

7. The automobile front end frame pull rivet nut missing loading detection tooling of claim 1, wherein, The pressing unit is a pressing cylinder, and the pressing cylinder is arranged at the middle part of the front end frame.

8. The automobile front end frame pull rivet nut missing loading detection tooling of claim 1, wherein, The workbench is arranged obliquely.

9. The automobile front end frame pull rivet nut missing loading detection tooling of claim 1, wherein, The workbench is further provided with a display module, the display module is electrically connected with the first detection unit and the second detection unit, the display module is located at the middle part of the front end frame, and the display module is used for displaying the detection results of the first detection unit and the second detection unit.

10. The automobile front end frame rivet nut missing loading detection tooling of claim 9, wherein, The bottom of the rack is provided with supporting legs and lockable rollers, the rack is further provided with an indicator light, the indicator light is electrically connected with the display module, and the indicator light cooperates with the display module to feedback the detection results.

Citation Information

Patent Citations

  • Leakage-proof detection equipment for rivet nuts of automobile front-end frame

    CN209327588U

  • Steel-plastic front end frame structure

    CN220743169U