Pull rivet leakage-proof detection device

Abstract

The utility model discloses a rivet-pulling leak-proof detection device which comprises a workbench, a fixing device and a detection device, the fixing device and the detection device are installed on the workbench, the workbench bears a workpiece and is fixed through the fixing device, the detection device comprises a plurality of rivet detection sensors, and the rivet detection sensors directly face rivet installation positions on the workpiece respectively. Through cooperation of the detection device and the controller, a mechanical detection means replaces a traditional manual detection means, all rivets needing to be detected on a workpiece are detected at the same time, the problem of rivet missing is avoided, the detection efficiency is improved, the manual load is reduced, the detection result is visually and objectively fed back, and the detection efficiency is improved. And unqualified products caused by human subjective errors and errors are reduced, and the manufacturing cost and the management cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive workpiece manufacturing technology and relates to a riveting leak detection device. Background Technology

[0002] Currently, to prevent heat transfer from the exhaust pipes to the passenger compartment, aluminum insulation is typically installed on the upper side of the vehicle's exhaust pipes. Two brackets are mounted on the aluminum brackets, which serve both a connecting and supporting function. The supporting function means that during vehicle operation, the aluminum heat shield, through the brackets, not only ensures a safe distance between the heat shield and other components but also allows it to connect to the vehicle body assembly.

[0003] The aluminum parts and brackets are connected by rivets. A bracket is installed on the aluminum part by two rivets. Currently, in the factory, the operator manually places the bracket on the aluminum part and then drives in the rivets to fix the bracket on the aluminum part. With manual operation, it is inevitable that some rivets will be missed. If rivets are missed, the bracket will not be installed securely. Therefore, it is necessary to check whether there are any missing rivets before leaving the factory. Summary of the Invention

[0004] In order to overcome at least one deficiency of the prior art, this utility model provides a rivet leak detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a riveting leak detection device, comprising a workbench and a fixing device and a detection device installed on the workbench. The workbench carries the workpiece and is fixed by the fixing device. The detection device includes a plurality of rivet detection sensors, each of which is positioned directly opposite the rivet installation location on the workpiece.

[0006] Furthermore, the fixing device includes a power unit and a gripper, the gripper being connected to the power unit.

[0007] Furthermore, it also includes several workpiece support frames, which are fixedly installed on the worktable, and the outline shape and position arrangement of the several workpiece support frames match the outline of the workpiece.

[0008] Furthermore, it also includes a contact sensor, which detects whether a workpiece is installed on the worktable. The contact sensor is fixed in the workpiece area or workpiece support frame of the worktable.

[0009] Furthermore, it also includes an alarm device, which includes a warning light and / or a buzzer.

[0010] Furthermore, it also includes a controller, which is connected to the contact sensor, rivet detection sensor, power assembly, and alarm device respectively.

[0011] Furthermore, it also includes several positioning blocks, which are fixed to the worktable and distributed on the outer side of the workpiece's outer contour.

[0012] Furthermore, the detection device also includes a sensor mounting bracket, which is fixed to the workbench, and the rivet detection sensor is fixed to the sensor mounting bracket.

[0013] Furthermore, the fixing device also includes a mounting bracket, which is fixed to the worktable, and the power component is fixed to the mounting bracket.

[0014] Furthermore, the end of the gripper that contacts the workpiece is provided with a soft material.

[0015] In summary, the advantages of this utility model are as follows:

[0016] This invention utilizes a combination of a detection device and a controller to replace traditional manual detection methods with mechanical detection. It simultaneously detects all rivets on the workpiece that require inspection, avoiding the problem of missed rivets, improving detection efficiency, reducing manual workload, providing intuitive and objective feedback on detection results, reducing defective products caused by human error, and lowering manufacturing and management costs. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the rivet leak prevention detection device of this utility model.

[0018] Fig. 2 This is a top view of the rivet leak prevention detection device of this utility model.

[0019] The diagram shows: 1. Workbench; 2. Fixing device; 3. Workpiece support frame; 5. Positioning block; 11. Wheel; 21. Mounting frame; 22. Power assembly; 23. Gripper; 41. Rivet detection sensor; 42. Sensor mounting frame. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0021] Example:

[0022] like Figs. 1-2As shown, a riveting leak detection device is used to detect the number of rivets connecting a workpiece and a bracket. It includes a worktable 1, a fixing device 2 installed on the worktable 1, and a detection device. The worktable 1 carries the workpiece and is fixed by the fixing device 2. The detection device includes a plurality of rivet detection sensors 41, which are respectively positioned opposite the rivet installation location on the workpiece.

[0023] The workpiece referred to in this embodiment is an aluminum part, specifically an aluminum heat shield.

[0024] In conventional technology, the bracket is fixedly connected to the workpiece by rivets. Both the workpiece and the bracket have several mounting holes. The operator inserts the rivets into the mounting holes of the bracket and the workpiece in sequence and tightens them, thereby fixing the bracket and the workpiece together by rivets.

[0025] The fixing device 2 is used to fix the workpiece placed on the worktable 1, effectively avoiding problems such as shaking of the workpiece during operation, thereby ensuring the accuracy and efficiency of fixing the workpiece to the bracket with rivets.

[0026] The fixing device 2 includes a power component 22 and a gripper 23. The gripper 23 is connected to the power component 22. The power component 22 acts as a power output structure to control the movement of the gripper 23, thereby enabling the gripper 23 to clamp or release the workpiece. The fixing device 2 serves to clamp the workpiece and prevent the worker from removing the workpiece before the riveting is completed.

[0027] The fixing device 2 also includes a mounting bracket 21, which is fixed to the workbench 1. The power component 22 is fixed to the mounting bracket 21, that is, the fixing device 2 is fixed by the mounting bracket 21.

[0028] In this embodiment, the fixing device 2 is a pneumatic gripper, that is, the power component 22 adopts a conventional pneumatic structure, but is not limited to a pneumatic structure. It can be a servo motor, hydraulic system, etc., as long as it meets the requirements.

[0029] The end of the gripper 23 that contacts the workpiece may be provided with a soft material to avoid damage to the workpiece. The soft material may be made of rubber, silicone, etc.

[0030] Rivet detection sensors 41 are positioned directly opposite the riveting locations on the workpiece to detect whether the rivets are welded. The rivet detection sensors 41 can be, but are not limited to, microswitches or other mechanical sensors, depending on the requirements. Preferably, the number of rivet detection sensors 41 matches the number of rivets, with one sensor corresponding to one rivet position and used to detect whether a rivet is installed at that location. However, other embodiments do not limit the number of rivet detection sensors 41; multiple sensors can be positioned opposite a single rivet position, and the number can be set as needed.

[0031] The detection device also includes a sensor mounting bracket 42. The rivet detection sensor 41 is mounted on the worktable 1 via the sensor mounting bracket 42. Specifically, the sensor mounting bracket 42 is fixed to the worktable 1, and the rivet detection sensor 41 is fixed to the sensor mounting bracket 42. Several sensor mounting brackets 42 are included, and their distribution positions correspond to the riveting installation positions on the workpiece. Fig. 1 As shown, the sensor mounting bracket 42 includes four sets, each with a different height, all matching the contour height of the workpiece. This ensures that the gap between the rivet detection sensor 41 and the riveting installation position remains relatively consistent, thereby making the detection of the rivet detection sensor 41 more accurate.

[0032] The rivet leak detection device also includes several workpiece support frames 3, which are fixedly installed on the upper surface of the workbench 1. The outline shape and position arrangement of the several workpiece support frames 3 match the outline of the workpiece to ensure that the workpiece can be placed quickly and accurately on the workpiece support frame 3 and that the workpiece is positioned stably.

[0033] The workpiece support frame 3 can be made of resin, which can prevent the workpiece from being damaged or deformed.

[0034] The rivet leak detection device also includes a contact sensor, which is used to detect whether a workpiece is installed on the workbench 1. The contact sensor can be fixed in the workpiece area of ​​the workbench 1 or the workpiece support frame 5 or other detectable workpiece positions.

[0035] To achieve the purpose of alarming, the rivet leak detection device can be equipped with an alarm device, which may include warning lights and / or a buzzer. Different colored warning lights can indicate different rivet installation statuses, making it easier for quality inspectors to check. For example, a red LED light indicates that the rivet is not fully installed, and a green LED light indicates that the rivet is fully installed. The buzzer can provide audible prompts, such as a beeping sound indicating that the rivet is not fully installed, prompting quality inspectors to recheck whether the workpiece is qualified. The specific prompting methods of the warning lights and / or buzzer can be set as needed, and will not be elaborated here.

[0036] For ease of control, the rivet leak detection device also includes a controller. The controller enables automatic control of the rivet leak detection device. The control box is a circuit control box, which can be equipped with a controller to control the contact sensor, rivet detection sensor 41, power assembly 22, and alarm device. The control methods and circuit settings are all mature existing technologies, and conventional control methods are sufficient; therefore, they will not be elaborated upon here. Specifically, the control box controls the device as follows: the contact sensor identifies the workpiece signal and transmits it to the controller; the controller receives the workpiece signal and sends a start signal to the power assembly 22; the power assembly 22 then controls... The clamp 23 clamps the workpiece. The rivet detection sensor 41 is used to sense whether rivets are installed. When all rivets are riveted, the rivet detection sensor 41 identifies the rivet touch in sequence and transmits the rivet identification signal to the controller in sequence. The controller receives all rivet identification signals and sends a closing signal to the power component 22. The power component 22 controls the clamp 23 to open. If a missing rivet occurs during the above process, the rivet detection sensor 41 is not touched. The controller sends an abnormal signal to the alarm device, the clamp 23 does not lift, the alarm device receives the signal, and the warning light and / or buzzer is activated. The operator checks the situation and repairs the missing rivet.

[0037] The riveting leak detection device also includes several positioning blocks 5, which are fixed on the worktable 1 and distributed on the outer contour of the workpiece. Figs. 1-2 Outside the thick solid line, the workpiece is positioned by the positioning block 5.

[0038] Preferably, the bottom of the workbench 1 is equipped with wheels 11, thereby enabling quick and easy movement.

[0039] The working principle of this embodiment:

[0040] The operator places the workpiece on the workpiece support frame 3. The contact sensor identifies the workpiece signal and transmits it to the controller. The controller receives the workpiece signal and sends a start signal to the power assembly 22. The power assembly 22 controls the clamp 23 to clamp the workpiece. The operator performs a riveting operation to fix the support to the workpiece. The rivet detection sensor 41 sequentially identifies the rivet contact and transmits the rivet identification signal to the controller sequentially. The controller receives all rivet identification signals and sends a close signal to the power assembly 22. The power assembly 22 controls the clamp 23 to open, and the operator removes the workpiece. If a missed riveting occurs, the rivet detection sensor 41 is not touched, and the warning light and / or buzzer is activated to remind the operator of the missed riveting. The entire workflow ends.

[0041] Any content not described in detail in this specification is prior art known to those skilled in the art.

[0042] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.

Claims

1. A rivet leak detection device, characterized in that: It includes a worktable and a fixing device and a detection device installed on the worktable. The worktable carries the workpiece and is fixed by the fixing device. The detection device includes several rivet detection sensors, each of which is directly facing the position where the rivets are installed on the workpiece.

2. The rivet leak detection device according to claim 1, characterized in that: The fixing device includes a power unit and a gripper, with the gripper connected to the power unit.

3. The riveting leak detection device according to claim 1, characterized in that: It also includes several workpiece support frames, which are fixedly installed on the worktable, and the outline shape and position arrangement of the workpiece support frames match the outline of the workpiece.

4. The rivet leak detection device according to claim 2, characterized in that: It also includes a contact sensor, which detects whether a workpiece is installed on the worktable. The contact sensor is fixed in the area where the workpiece is located on the worktable or on the workpiece support frame.

5. A rivet leak-proof detection device according to claim 4, characterized in that: It also includes an alarm device, which includes a warning light and / or a buzzer.

6. The riveting leak detection device according to claim 5, characterized in that: It also includes a controller, which is connected to the contact sensor, rivet detection sensor, power assembly, and alarm device respectively.

7. The riveting leak detection device according to claim 1, characterized in that: It also includes several positioning blocks, which are fixed to the worktable and distributed on the outer side of the workpiece's outer contour.

8. The rivet leak detection device according to claim 1, characterized in that: The detection device also includes a sensor mounting bracket, which is fixed to the workbench, and the rivet detection sensor is fixed to the sensor mounting bracket.

9. A rivet leak-proof detection device according to claim 2, characterized in that: The fixing device also includes a mounting bracket, which is fixed to the workbench, and the power component is fixed to the mounting bracket.

10. A rivet leak-proof detection device according to claim 2, characterized in that: The end of the gripper that contacts the workpiece is provided with a soft material.

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