Device for effectively preventing rivet nuts of upper cross beam of automobile water tank from being missed

By using a sensor to detect the riveting sequence and quantity during the riveting process of the crossbeam on the car water tank, the problems of multiple riveting and missed processes have been solved, achieving efficient and economical automated riveting and ensuring the accuracy and safety of the production process.

CN223544584UActive Publication Date: 2025-11-14TIANJIN LINGYUN HIGH TECH AUTOMOBILE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423039960.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-11-14
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

In the riveting process of the crossbeam on the car water tank, existing technologies are difficult to effectively prevent problems such as multiple riveting and missing steps, which has a significant impact on new employees and replacement workers. Moreover, existing solutions are costly or require a large area and are difficult to automate.

Method used

A device comprising a riveting fixture, sensors, and a control system was designed. The sensors detect the riveting sequence and quantity to ensure accuracy. In the event of any disorder in the sequence or missing riveting, the fixture locks and alarms, reducing the frequency of manual inspection.

Benefits of technology

It significantly reduces the incidence of multiple riveting and missing processes, alleviates the labor intensity of operators, improves production efficiency and quality, has significant cost benefits, and has efficient and economical error prevention capabilities.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223544584U_ABST
    Figure CN223544584U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of automobile part machining, and discloses a device for effectively preventing an automobile water tank upper cross beam from missing rivet nuts, which comprises a riveting clamp, a rotary clamping cylinder is fixedly mounted at the top of the riveting clamp, and a clamping plate is fixedly mounted at the top of the rotary clamping cylinder. A pressing block is fixedly installed at the bottom of one end of the clamping plate, a second connecting block is installed at the top of the riveting clamp, and a third sensor is fixedly installed at the top of the riveting clamp. When the sensor III independently senses that the product sensor II and the product sensor III do not react, the system automatically judges that the product sensor II and the product sensor III are U-shaped and sets the riveting number, then, the riveting gun performs nut riveting operation, any riveting missing condition causes the clamp to be locked and triggers an alarm, similarly, the sensor I and the sensor III jointly confirm that the product sensor II and the product sensor III are placed in an N shape, and the riveting operation is finished. The riveting number is set to be one, and the riveting clamp and the first sensor jointly recognize the riveting position when the riveting position is placed on the side face.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and more specifically, to an effective device for preventing the leakage of rivet nuts on the crossbeam of an automotive water tank. Background Technology

[0002] In the production process of the automotive radiator upper crossbeam, a device to prevent the leakage of rivet nuts is designed to ensure riveting quality. This device is crucial in the riveting process, effectively preventing over-riveting and missed steps, and preventing unqualified parts from entering the next process. Addressing the issues of a large number of rivet nuts and susceptibility to human error, this device is specifically designed for new employees and those on temporary assignments, significantly reducing the incidence of over-riveting and missed steps, ensuring the safety and reliability of subsequent customer installation. Currently, the common method to prevent over-riveting and missed steps relies mainly on manual inspection. While this method can improve production quality in the short term, it significantly increases the workload of operators in the long run. As the production cycle lengthens, operators are prone to mechanical operations, and coupled with accumulated fatigue or the lack of experience of new employees, a small probability of over-riveting and missed steps is inevitable, posing a potential risk to product quality. Furthermore, while using fully automated equipment for automatic riveting and mechanical grippers for part transfer can be achieved, this solution is costly, requires a large footprint, and is difficult to implement. Therefore, this paper proposes an effective device to prevent the leakage of rivet nuts on the automotive radiator upper crossbeam, solving the aforementioned problems. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an effective device for preventing the rivet nuts from being missing from the crossbeam of an automobile water tank, which has the advantage of facilitating the inspection of the rivet nuts on the product parts.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an effective device for preventing the leakage of rivet nuts on the crossbeam of an automotive water tank, comprising a riveting clamp, a rotary clamping cylinder fixedly installed on the top of the riveting clamp, a clamping plate fixedly installed on the top of the rotary clamping cylinder, a pressing block fixedly installed at the bottom of one end of the clamping plate, a connecting block two installed on the top of the riveting clamp, and a sensor three fixedly installed on the top of the riveting clamp;

[0005] A connecting block 1 is fixedly installed at the bottom of the riveting fixture. A support block 1 is fixedly installed at the top inside the connecting block 1. A sensor 2 is fixedly installed on the outside of the connecting block 1. A connecting block 3 is fixedly installed at the top of the riveting fixture. A sensor 1 is fixedly installed at the top of the riveting fixture. A fixed bracket is fixedly installed at the bottom of the riveting fixture. A fixed bracket is fixedly installed at the bottom of the fixed bracket, and a housing is fixedly installed at the top of the fixed bracket. A control switch is fixedly installed on the front of the housing. A product part is fixedly installed between the connecting block 3 and the clamping block. A support block 2 is fixedly installed on the riveting fixture. A connecting block 4 is fixedly installed at the bottom of the riveting fixture.

[0006] As a preferred embodiment of this utility model, the bottom of the box is hinged with positioning wheels, and there are two positioning wheels. The bottom of the box is also fixedly equipped with casters.

[0007] As a preferred embodiment of this utility model, the fixed bracket has a threaded hole inside, and the threaded hole has two identical shapes.

[0008] As a preferred embodiment of this utility model, the top of the riveting clamp is fixedly equipped with a hook, and the hook has two identical shapes.

[0009] As a preferred embodiment of this utility model, a toolbox is fixedly installed on the top of the box body, and the toolbox is made of stainless steel.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention utilizes sensor three to detect when sensor two and sensor three do not respond. The system automatically determines the riveting pattern as U-shaped and sets the riveting count to [number]. The riveting gun then performs the nut riveting operation. Any missed riveting will cause the fixture to lock and trigger an alarm. Similarly, N-shaped placement is jointly confirmed by sensor one and sensor three, setting the riveting count to [number]. Side placement is jointly identified by the riveting fixture and sensor one, setting the riveting count to [number]. The entire riveting process strictly follows the sequence of U-shaped, N-shaped, and side placement. Any disorder in the sequence will cause the equipment fixture to lock and trigger an alarm, ensuring the accuracy and safety of the production process. Attached Figure Description

[0012] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0013] Figure 2 This is a three-dimensional view of the rear appearance structure of the present utility model;

[0014] Figure 3 This is a schematic diagram of the riveting fixture structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the fixed bracket structure of this utility model;

[0016] Figure 5 This is a top-view three-dimensional structural diagram of the present invention.

[0017] In the diagram: 1. Riveting fixture; 2. Support block one; 3. Rotary clamping cylinder; 4. Connecting block one; 5. Support block two; 6. Sensor one; 7. Connecting block two; 8. Connecting block three; 9. Clamping block; 10. Clamping plate; 11. Connecting block four; 12. Sensor two; 13. Toolbox; 14. Fixed bracket; 15. Threaded hole; 16. Control switch; 17. Positioning wheel; 18. Universal wheel; 19. Box body; 20. Hook; 21. Product part; 22. Sensor three. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 5 As shown, this utility model provides an effective device for preventing the leakage of rivet nuts on the crossbeam of an automobile water tank, including a riveting clamp 1, a rotary clamping cylinder 3 fixedly installed on the top of the riveting clamp 1, a clamping plate 10 fixedly installed on the top of the rotary clamping cylinder 3, a pressing block 9 fixedly installed at the bottom of one end of the clamping plate 10, a connecting block 7 installed on the top of the riveting clamp 1, and a sensor 22 fixedly installed on the top of the riveting clamp 1.

[0020] A connecting block 4 is fixedly installed at the bottom of the riveting fixture 1. A support block 2 is fixedly installed at the top inside the connecting block 4. A sensor 12 is fixedly installed on the outside of the connecting block 4. A connecting block 8 is fixedly installed at the top of the riveting fixture 1. A sensor 6 is fixedly installed at the top of the riveting fixture 1. A fixing bracket 14 is fixedly installed at the bottom of the riveting fixture 1. A fixing bracket 14 is fixedly installed at the bottom of the fixing bracket 14. A housing 19 is fixedly installed at the top of the fixing bracket 14. A control switch 16 is fixedly installed on the front of the housing 19. A product part 21 is fixedly installed between the connecting block 8 and the clamping block 9. A support block 5 is fixedly installed on the riveting fixture 1. A connecting block 11 is fixedly installed at the bottom of the riveting fixture 1.

[0021] The staff needs to inspect product part 21. First, the product part 21, after being processed by the bending machine, is slowly placed on top of the riveting fixture 1. Then, the product part 21 is supported by support block 1 2, support block 2 5, sensor 1 6, and connecting block 3 8. Now, the rotary clamping cylinder 3 is activated, which drives the clamping plate 10 to slowly descend. The clamping plate 10 then drives the pressing block 9 to slowly descend. The product part 21 is clamped and fixed by the cooperation between the pressing block 9 and the connecting block 3 8. The product part 21 is then limited by the connecting block 1 4, connecting block 2 7, connecting block 3 8, and connecting block 4 11. Now, the control switch 16 is pressed, and the riveting gun is controlled by the PLC to rivet the product part. Item 21 is inspected. For U-shaped placement, when sensor 3 22 alone detects no response from product connecting block 4, sensor 2 12, and sensor 3 22, the system automatically determines it as U-shaped and sets the riveting count to 10. Subsequently, the riveting gun performs nut riveting operations. Any missing rivets will cause the fixture to lock and trigger an alarm. Similarly, N-shaped placement is jointly confirmed by sensor 1 6 and sensor 3 22, and the riveting count is set to 4. Side placement is jointly identified by riveting fixture 1 and sensor 1 6, and the riveting count is set to 2. The entire riveting process strictly follows the order of U-shaped, N-shaped, and side placement. Any disorder in the order will cause the equipment fixture to lock and issue an alarm to ensure the accuracy and safety of the production process.

[0022] Product part 21 needs to be inspected. First, the product part 21, which has been processed by the bending machine, is slowly placed on top of the riveting fixture 1. Then, the product part 21 is supported by support block 1 2, support block 2 5, sensor 1 6, and connecting block 3 8. Now, the rotary clamping cylinder 3 is activated, which drives the clamping plate 10 to slowly descend. The clamping plate 10 then drives the pressing block 9 to slowly descend. The product part 21 is clamped and fixed by the cooperation between the pressing block 9 and the connecting block 3 8. The product part 21 is then limited by the connecting block 1 4, connecting block 2 7, connecting block 3 8, and connecting block 4 11. Compared with the traditional method, this device facilitates the inspection of product part 21 through the cooperation between sensor 1 6, sensor 3 22, and connecting block 4 11, which significantly improves the efficiency and quality of automobile manufacturing. Through ingenious design, it effectively reduces the labor intensity of operators and significantly decreases the inspection frequency of the riveting process of the water tank's upper beam. Its cost-effectiveness is significant, while demonstrating excellent error prevention capabilities, ensuring the accuracy of every process. The device is not only easy to integrate into existing production lines, but also demonstrates a high degree of innovation, providing an efficient and economical solution for the automotive industry to prevent missing riveting problems.

[0023] The bottom of the housing 19 is hinged with a positioning wheel 17, and there are two positioning wheels 17. The bottom of the housing 19 is also fixedly equipped with a universal wheel 18.

[0024] The cooperation between the positioning wheel 17 and the universal wheel 18 facilitates the movement of the entire device, ensuring the efficiency of the housing 19 and the riveting fixture 1 during the movement process, reducing the workload of workers and improving the efficiency of staff.

[0025] The fixed bracket 14 has a threaded hole 15 inside, and the threaded hole 15 has two identical shapes.

[0026] The workers slowly aligned the bolt with the inside of the threaded hole 15, and then screwed the bolt into the threaded hole 15 and the inside of the housing 19. The threaded hole 15 has two identical shapes, which makes the fixing of the threaded hole 15 more stable and improves the support efficiency of the fixing bracket 14 to the riveting fixture 1.

[0027] The top of the riveting clamp 1 is fixedly equipped with a hook 20, and the hook 20 has two identical shapes.

[0028] Since the hooks 20 have two identical shapes on the top of the riveting clamp 1, it is easy to pass the rope through the inside of the hooks 20 and then tie the rope inside the hooks 20, which facilitates the movement of the riveting clamp 1 and improves the efficiency of moving and assembling the riveting clamp 1.

[0029] The toolbox 13 is fixedly installed on the top of the box 19, and the toolbox 13 is made of stainless steel.

[0030] Because the toolbox 13 is made of stainless steel on the top of the box body 19, the toolbox 13 made of stainless steel has good corrosion resistance and is easy to use for a long time. At the same time, it is convenient for staff to take out maintenance tools from inside the toolbox 13 for use.

[0031] Working principle and usage process of this utility model:

[0032] The staff needs to inspect product part 21. First, the product part 21, after being processed by the bending machine, is slowly placed on top of the riveting fixture 1. Then, the product part 21 is supported by support block 1 2, support block 2 5, sensor 1 6, and connecting block 3 8. Now, the rotary clamping cylinder 3 is activated, which drives the clamping plate 10 to slowly descend. The clamping plate 10 then drives the pressing block 9 to slowly descend. The product part 21 is clamped and fixed by the cooperation between the pressing block 9 and the connecting block 3 8. The product part 21 is then limited by the connecting block 1 4, connecting block 2 7, connecting block 3 8, and connecting block 4 11. Now, the control switch 16 is pressed, and the riveting gun is controlled by the PLC. Product part 21 is inspected. For U-shaped placement, when sensor 3 22 detects product part 12 alone and sensor 3 22 does not respond, the system automatically determines it as U-shaped and sets the riveting count to 10. Subsequently, the riveting gun performs nut riveting operation. Any missing riveting will cause the fixture to lock and trigger an alarm. Similarly, N-shaped placement is jointly confirmed by sensor 1 6 and sensor 3 22, and the riveting count is set to 4. Side placement is jointly identified by riveting fixture 1 and sensor 1 6, and the riveting count is set to 2. The entire riveting process strictly follows the order of U-shaped, N-shaped, and side placement. Any disorder in the order will cause the equipment fixture to lock and issue an alarm to ensure the accuracy and safety of the production process.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An effective device for preventing the leakage of rivet nuts on the upper crossbeam of an automotive water tank, comprising a riveting clamp (1), characterized in that: The riveting fixture (1) is fixedly equipped with a rotary clamping cylinder (3) on the top, a clamping plate (10) is fixedly equipped on the top of the rotary clamping cylinder (3), a pressing block (9) is fixedly equipped at the bottom of one end of the clamping plate (10), a connecting block two (7) is installed on the top of the riveting fixture (1), and a sensor three (22) is fixedly installed on the top of the riveting fixture (1). The bottom of the riveting fixture (1) is fixedly installed with a connecting block 1 (4), the top of the inside of the connecting block 1 (4) is fixedly installed with a support block 1 (2), the outside of the connecting block 1 (4) is fixedly installed with a sensor 2 (12), the top of the riveting fixture (1) is fixedly installed with a connecting block 3 (8), the top of the riveting fixture (1) is fixedly installed with a sensor 1 (6), the bottom of the riveting fixture (1) is fixedly installed with a fixed bracket (14), the bottom of the fixed bracket (14) is fixedly installed with a fixed bracket (14), and the top of the fixed bracket (14) is fixedly installed with a housing (19). The front of the housing (19) is fixedly installed with a control switch (16). The connecting block 3 (8) and the clamping block (9) are fixedly installed with a product part (21). The riveting fixture (1) is fixedly installed with a support block 2 (5), and the bottom of the riveting fixture (1) is fixedly installed with a connecting block 4 (11).

2. The device for effectively preventing the leakage of rivet nuts on the upper crossbeam of an automobile water tank according to claim 1, characterized in that: The bottom of the box (19) is hinged with a positioning wheel (17), and there are two positioning wheels (17). The bottom of the box (19) is fixedly installed with a universal wheel (18).

3. The device for effectively preventing the leakage of rivet nuts on the crossbeam of an automotive water tank according to claim 1, characterized in that: The fixed bracket (14) has a threaded hole (15) inside, and the threaded hole (15) has two shapes of the same size.

4. The device for effectively preventing the leakage of rivet nuts on the crossbeam of an automotive water tank according to claim 1, characterized in that: The top of the riveting clamp (1) is fixedly equipped with a hook (20), and the hook (20) has two shapes of the same size.

5. The device for effectively preventing the leakage of rivet nuts on the crossbeam of an automotive water tank according to claim 2, characterized in that: A toolbox (13) is fixedly installed on the top of the box (19), and the toolbox (13) is made of stainless steel.