Mistake-proof and leakage-proof nut reinforcing plate mounting tool

Abstract

The utility model relates to a mistake-proof and leakage-proof nut reinforcing plate installation tool which comprises a strip-shaped plate, the front face of the strip-shaped plate is provided with a profiling face used for being matched with the nut reinforcing plate in shape, and the profiling face is provided with magnets and receding through holes used for being in one-to-one correspondence with nuts welded on the nut reinforcing plate in a projection mode. And sensors are arranged in the receding through holes correspondingly, the sensors are electrically connected to the input end of a controller, and the output end of the controller is electrically connected with an alarm installed on the strip-shaped plate. When the mistake-proof and leakage-proof nut reinforcing plate installation tool is used, the nut reinforcing plate is magnetically attracted to the profiling face of the strip-shaped plate, the nuts which are subjected to projection welding on the nut reinforcing plate are embedded into the receding through holes in a one-to-one correspondence mode, the sensor in each receding through hole detects whether the nut exists or not, and when the nut cannot be detected in at least one receding through hole, the nut reinforcing plate is installed on the strip-shaped plate. And the alarm can warn a worker. Wrong and leaked nut reinforcing plates can be prevented from being fed into the doorsill beam body to be subjected to core-pulling riveting, and heavy loss is avoided.

Description

Technical Field

[0001] This utility model relates to a nut reinforcement plate installation fixture that prevents errors and leaks, and is applicable to the field of lightweight aluminum automotive parts manufacturing. Background Technology

[0002] Currently, new energy vehicles account for an increasing proportion, and major domestic automakers have begun to largely adopt lightweight aluminum components to reduce vehicle weight and increase mileage. However, some key load-bearing components require reinforcements within the aluminum profiles. Traditionally, door sill beams add mounting points using rivet nuts, but this method lacks sufficient local rigidity at the mounting points, failing to meet the requirements of areas with high loads, such as battery packs. Therefore, nut reinforcement plates are needed. Because the profile beam is closed from top to bottom, the nut reinforcement plate can only be inserted through a cavity. After being inserted into the door sill beam cavity, the holes in the nut reinforcement plate are aligned with the holes in the door sill beam, and then rivets are used to connect the nut reinforcement plate to the door sill beam. The disadvantages of the existing technology are:

[0003] In the existing technology, the projection welding nut is first welded to the reinforcing plate by projection welding to produce the nut reinforcing plate. Since there are a large number of projection welding nuts on a reinforcing plate, the production process may result in the wrong or missing nuts. The traditional feeding method does not have a detection method. Once the wrong or missing nut plate is fed into the sill beam body for core pulling and riveting, and then the sill beam is loaded into the whole vehicle, it will cause significant losses. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a nut reinforcement plate installation fixture that prevents errors and leaks.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a nut reinforcement plate installation fixture that prevents errors and leaks, including a strip plate. The front of the strip plate is provided with a contoured surface adapted to the shape of the nut reinforcement plate. The contoured surface is provided with magnets and clearance through holes that correspond one-to-one with the nuts welded onto the nut reinforcement plate. Sensors are provided inside the clearance through holes. The sensors are electrically connected to the input terminal of a controller. The output terminal of the controller is electrically connected to an alarm mounted on the strip plate.

[0006] Preferably, the contoured surface is composed of a contoured side surface and a contoured bottom surface; the contoured side surface is provided with a recess adapted to the protrusion of the side surface of the nut reinforcing plate, and a protrusion adapted to the recess of the side surface of the nut reinforcing plate is also provided; the contoured bottom surface is provided with a recess adapted to the protrusion of the bottom surface of the nut reinforcing plate, and a protrusion adapted to the recess of the bottom surface of the nut reinforcing plate is also provided.

[0007] Preferably, the clearance holes extend from the front to the back of the strip plate.

[0008] Preferably, the back of the strip plate is provided with radially communicating sensor mounting grooves on the periphery of the clearance through hole.

[0009] Preferably, the sensors are all fixedly connected in the corresponding mounting grooves, and the sensor heads are all facing forward to align with the end face of the nut for distance measurement.

[0010] Preferably, there are several magnets distributed on the side of each clearance through hole to magnetically attract the nut reinforcing plate.

[0011] Preferably, the nut reinforcing plate is provided with a plurality of blind rivet holes, and the strip plate is provided with blind rivet clearance through holes at the positions corresponding to the blind rivet holes. The inner diameter of the blind rivet clearance through holes is larger than the inner diameter of the blind rivet holes and also larger than the outer diameter of the blind rivet.

[0012] Preferably, the controller is fixedly connected to the strip plate, and the strip plate is also provided with a power supply for supplying power to all electrical components.

[0013] Preferably, the alarm includes a signal light.

[0014] Preferably, the alarm includes a buzzer.

[0015] Compared with existing technologies, this utility model has the following advantages: When using this error-proof and leak-proof nut reinforcement plate installation fixture, the nut reinforcement plate is magnetically attached to the contoured surface of the strip plate. The nuts welded onto the nut reinforcement plate are embedded one-to-one into the clearance through holes. A sensor in each clearance through hole detects the presence of a nut. If no nut is detected in at least one clearance through hole, an alarm will alert the operator. This prevents the incorrect or missing nut reinforcement plate from being inserted into the sill beam body for core-pulling riveting, thus avoiding significant losses.

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the nut reinforcing plate in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0019] Figure 3 This is a partial schematic diagram of the back of an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the working state of an embodiment of the present utility model. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the working state of an embodiment of the present utility model. Figure 2 .

[0022] Figure 6 This is a cross-sectional view of the threshold beam after the nut reinforcement plate has been riveted. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] like Figures 1-6 As shown, this embodiment provides a nut reinforcement plate installation fixture that prevents errors and leaks, including a strip plate 1. The front of the strip plate is provided with a contoured surface 3 that adapts to the shape of the nut reinforcement plate 2. The contoured surface is provided with a magnet 4 and clearance through holes 6 that correspond one-to-one with the nuts 5 welded onto the nut reinforcement plate. Sensors 7 are provided inside each clearance through hole. The sensors are connected in series and electrically connected to the input terminal of a controller. The output terminal of the controller is electrically connected to an alarm mounted on the strip plate.

[0027] In this embodiment of the invention, the magnet is a magnet with strong attraction.

[0028] In this embodiment of the utility model, the contoured surface is composed of a contoured side surface and a contoured bottom surface; a recessed portion adapted to the protrusion of the side surface of the nut reinforcing plate is fixedly provided on the contoured side surface, and a protrusion adapted to the recessed portion of the side surface of the nut reinforcing plate is also fixedly provided; a recessed portion adapted to the protrusion of the bottom surface of the nut reinforcing plate is fixedly provided on the contoured bottom surface, and a protrusion adapted to the recessed portion of the bottom surface of the nut reinforcing plate is also fixedly provided.

[0029] In this embodiment of the utility model, the clearance through holes all extend from the front to the back of the strip plate.

[0030] In this embodiment of the utility model, the back of the strip plate is provided with radially communicating sensor mounting grooves 8 on the periphery of the clearance through hole.

[0031] In this embodiment of the invention, the sensors are all fixedly connected in the corresponding mounting grooves, and the sensor heads are all facing forward to measure distance by aligning with the end face of the nut.

[0032] In this embodiment of the invention, there are several magnets distributed on the side of each clearance hole to magnetically attract the nut reinforcement plate.

[0033] In this embodiment of the utility model, the nut reinforcing plate is provided with a plurality of blind rivet holes 9, and the strip plate is provided with blind rivet clearance through holes 10 at the positions corresponding to the blind rivet holes. The inner diameter of the blind rivet clearance through holes is larger than the inner diameter of the blind rivet holes and also larger than the outer diameter of the blind rivet.

[0034] In this embodiment of the utility model, the controller is fixedly connected to the strip plate, and the strip plate is also provided with a power supply for supplying power to all electrical components.

[0035] In this embodiment of the invention, the alarm includes a signal light 11.

[0036] In this embodiment of the invention, the alarm includes a buzzer 12.

[0037] In this embodiment of the invention, the indicator light and buzzer are installed at the end of the strip plate. A sensor is installed in the clearance hole of each nut. If no nut is detected, the indicator light will light up red and the buzzer will sound an alarm to remind the operator and prevent leakage.

[0038] In this embodiment of the utility model, the working principle of the error-proof and leak-proof nut reinforcement plate installation fixture is as follows: the nut reinforcement plate with the nut welded on is placed on the corresponding position of the contour surface on the fixture. Since the nut reinforcement plate has been welded on, the high temperature will cause it to deform. At this time, the strong magnet can tightly attract the nut reinforcement plate and forcibly correct its shape, preventing the nut reinforcement plate from deforming and causing the distance between the nut and the sensor to increase, thereby causing the sensor to make a false alarm.

[0039] After the reinforcing nut plate is placed on the fixture and there are no alarms, insert the fixture into the door sill beam cavity 13 and adjust the position of the fixture. The strong magnet can ensure that the reinforcing nut plate does not loosen on the fixture during the adjustment process. Adjust until the core-pulling rivet hole on the reinforcing nut plate is aligned and overlapped with the core-pulling rivet hole on the door sill beam. Insert the core-pulling rivet into the overlapped core-pulling rivet hole and rivet it with a core-pulling rivet gun. After riveting, the reinforcing nut plate is connected to the door sill beam 14. Then separate the reinforcing nut plate from the fixture, remove the fixture, and prepare for the next riveting.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its scope of protection shall still fall within the protection scope of this utility model.

Claims

1. A tooling for installing a nut reinforcement plate to prevent errors and leaks, characterized in that: The device includes a strip plate. The front of the strip plate has a contoured surface adapted to the shape of a nut reinforcement plate. The contoured surface has magnets and clearance holes corresponding to the nuts welded onto the nut reinforcement plate. Sensors are installed inside each clearance hole, and these sensors are electrically connected to the input of a controller. The output of the controller is electrically connected to an alarm mounted on the strip plate. The contoured surface consists of a contoured side surface and a contoured bottom surface. The contoured side surface has recesses adapted to the protrusions on the side of the nut reinforcement plate, and also has protrusions adapted to the recesses on the side of the nut reinforcement plate. The contoured bottom surface has recesses adapted to the protrusions on the bottom surface of the nut reinforcement plate, and also has protrusions adapted to the recesses on the bottom surface of the nut reinforcement plate. The clearance holes are all along the strip shape. The front of the plate extends to the back; the back of the strip plate has radially connected sensor mounting grooves on the periphery of the clearance holes; the sensors are all fixedly connected in the corresponding mounting grooves, and the sensor heads face the front to measure distances to the end face of the nut; there are several magnets distributed beside each clearance hole to magnetically attract the nut reinforcing plate; the nut reinforcing plate has several pull-rivet holes, and the strip plate has pull-rivet clearance holes at the corresponding positions of the pull-rivet holes, the inner diameter of the pull-rivet clearance holes being larger than the inner diameter of the pull-rivet hole and also larger than the outer diameter of the pull-rivet; the controller is fixedly connected to the strip plate, and the strip plate is also provided with a power supply for powering all electrical components; the alarm includes an indicator light; the alarm includes a buzzer.

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