A device for automatic detection of an HVAC automobile air conditioner

Abstract

The utility model discloses a kind of HVAC car air conditioner automatic detection equipment, including silence room, the side of the silence room is provided with operating station, the other side of silence room is sequentially provided with air volume detection equipment, appearance inspection machine and return line, product positioning tool is placed on the operating station, product body is arranged on product positioning tool, performance noise detection station and insulation withstand voltage detection station are arranged in the silence room, industrial camera is arranged on the appearance inspection machine, the bottom of product positioning tool is provided with jacking mechanism, this HVAC car air conditioner automatic detection equipment, product body is installed on product positioning tool, for loading HVAC assembly, product body is conveyed to silence room, silence room can effectively isolate external noise, performance noise detection station and insulation withstand voltage detection station are arranged in silence room, insulation withstand voltage, performance operation, noise and other detection functions are integrated into interior, various detections are carried out.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning testing technology, and in particular to an automatic testing device for HVAC automotive air conditioning systems. Background Technology

[0002] HVAC is an abbreviation for Heating, Ventilation and Air Conditioning, and its full Chinese name is Heating, Ventilation and Air Conditioning. It belongs to the core technology system in the field of building environmental control. This technology is based on the theories of heat transfer, fluid mechanics and engineering thermodynamics. Through temperature regulation, humidity control, air purification and circulation systems, it optimizes the comfort and energy efficiency of the interior environment of buildings or vehicles. As a cross-domain application technology, HVAC systems are widely used in architectural design and engineering, manufacturing and automotive industries.

[0003] Currently, most mainstream automotive air conditioning manufacturers typically perform various inspections on their products using semi-automatic or manual methods after assembly. Semi-automatic equipment has fewer inspection items, low compatibility, cannot automatically identify part numbers requiring manual input, and has weak data storage capabilities. Manual inspection methods are vague in standards, lack objectivity, and are prone to errors and misjudgments. Overall efficiency is low, requiring a large number of operating stations and involving high labor intensity. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an automatic detection device for HVAC automotive air conditioning systems, thereby solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic testing device for HVAC automotive air conditioners includes a soundproof room. An operating station is located on one side of the soundproof room, and an airflow testing device, a visual inspection machine, and a return line are sequentially arranged on the other side. A product positioning fixture is placed on the operating station, and a product body is mounted on the product positioning fixture. A performance noise testing station and an insulation withstand voltage testing station are located inside the soundproof room. An industrial camera is mounted on the visual inspection machine. A lifting mechanism is located at the bottom of the product positioning fixture, and a plug-in connection mechanism is located on one side of the product positioning fixture. Automatic code reading mechanisms are installed on the performance noise testing station, the insulation withstand voltage testing station, and the airflow testing device.

[0006] Preferably, the product positioning fixture is provided with multiple assembly positioning blocks, and the product body is mounted on the assembly positioning blocks.

[0007] Preferably, the soundproof room has a conveyor inlet and a conveyor outlet on both sides, and a lift door on the soundproof room is adapted to the conveyor inlet and the conveyor outlet respectively. A personnel entrance and exit is provided on one side of the soundproof room.

[0008] Preferably, both the airflow detection device and the appearance inspection machine are equipped with a double-speed chain conveyor. The airflow detection device is equipped with a defrost blowing test air duct and a test box. The test box has a passenger-side test air duct and a driver-side test air duct on its two sides, respectively. A wind speed meter controller is installed on one side of the passenger-side test air duct.

[0009] Preferably, the automatic code reading mechanism includes a code reading cylinder installed on the performance noise detection station, the insulation withstand voltage detection station, and the air volume detection equipment. A transition connecting plate is installed on the code reading cylinder, a code reader plate is connected to the transition connecting plate, a code reader protective cover is installed on the code reader plate, and a code reader body is provided on the code reader protective cover.

[0010] Preferably, the lifting mechanism includes a lifting plate fixedly installed below the product positioning fixture, a lifting base plate is provided below the lifting plate, a lifting guide shaft is connected between the lifting base plate and the lifting plate, a lifting pad is provided at the end of the lifting guide shaft, a fixture plate positioning pin is provided at the top of the lifting plate, and a lifting cylinder is provided between the lifting base plate and the lifting plate.

[0011] Preferably, the insertion and connection mechanism includes a mounting plate fixedly installed on the side of the product positioning fixture, a slide cylinder mounted on the mounting plate, an insertion terminal plate mounted on the slide cylinder, and an insertion probe provided on one side of the insertion terminal plate.

[0012] Preferably, the appearance inspection machine is equipped with pneumatic lifting doors on both sides, and a six-axis robot is installed on the appearance inspection machine, with an industrial camera mounted on the six-axis robot.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The automatic testing equipment for HVAC automotive air conditioning systems installs the product body on a product positioning fixture for loading the HVAC assembly. The product body is then transported to a quiet room, which effectively isolates external noise. The quiet room is equipped with a performance noise testing station and an insulation withstand voltage testing station, integrating insulation withstand voltage, performance operation, noise and other testing functions into the internal components. The equipment can automatically position and connect to the circuit. The automatic code reading mechanism can automatically read the product part number information through the code reader body, automatically scan and identify the part number information, and perform various tests on the HVAC assembly. When the product body enters the air volume detection equipment for testing, it is automatically positioned by the lifting mechanism and connected by the plug-in conduction mechanism. After automatically scanning and identifying the product number information, the air volume of each air outlet of the product body assembly is connected to the test air duct for air volume detection or blocking as required. It can realize functions such as automatic mode switching, automatic gear shifting, and automatic shielding / opening of the detection channel. When the fixture carrying the HVAC assembly enters the appearance inspection machine, it repeats the previous automatic positioning and connection process. After automatically scanning and identifying the part number information, the six-axis robot, equipped with an industrial camera, performs various appearance inspections on the five sides of the product. Based on the identified part number, it can automatically select the preset motion path and inspection elements. After the inspection is completed, the product positioning fixture flows out and returns to the origin via a return conveyor. The operator removes the inspected product body, and the inspection results can be clearly seen on the display screen in front of the operator, which can guide the operator to return defective products. This equipment realizes fully automatic inspection of HVAC assemblies. Only manual handling is required to move the product into the dedicated positioning fixture, which can also return automatically. The operator can then remove the inspected product. The equipment also visualizes the NG information of defective products. Attached Figure Description

[0014] Figure 1 This is a front view of the automatic inspection assembly of this utility model; Figure 2 This is a top view of the automatic detection assembly of this utility model; Figure 3 This is a schematic diagram of the front section of the soundproof room of this utility model; Figure 4 This is a side sectional structural diagram of the soundproof room of this utility model; Figure 5 This is a schematic diagram of the product positioning fixture of this utility model; Figure 6 This is a three-dimensional structural diagram of the appearance inspection machine of this utility model; Figure 7 This is a side sectional view of the appearance inspection machine of this utility model; Figure 8 This is a schematic diagram of the internal structure of the air volume detection device of this utility model; Figure 9 This is a three-dimensional structural diagram of the lifting mechanism of this utility model; Figure 10 This is a side sectional structural diagram of the lifting mechanism of this utility model; Figure 11 This is a schematic diagram of the plug-in conduction mechanism of this utility model; Figure 12 This is a schematic diagram of the automatic code reading mechanism of this utility model.

[0015] In the diagram: 1. Soundproof room; 2. Operating station; 3. Airflow testing equipment; 4. Visual inspection machine; 5. Return line; 6. Conveyor inlet; 7. Conveyor outlet; 8. Room lifting door; 9. Performance noise testing station; 10. Insulation withstand voltage testing station; 11. Personnel entrance / exit; 12. Pneumatic lifting door; 13. Six-axis robot; 14. Industrial camera; 15. High-speed conveyor belt; 16. Defrosting and blowing test air duct; 17. Test chamber; 18. Co-pilot test air duct; 19. Anemometer control. 20. Main driver test air duct; 21. Product positioning fixture; 22. Assembly positioning block; 23. Product body; 24. Lifting base plate; 25. Lifting guide shaft; 26. Lifting shim; 27. Lifting plate; 28. Fixture plate positioning pin; 29. ​​Lifting cylinder; 30. Mounting plate; 31. Slide cylinder; 32. Plug-in terminal block; 33. Plug-in probe; 34. Code reader cylinder; 35. Transition connection plate; 36. Code reader board; 37. Code reader protective cover; 38. Code reader body. Detailed Implementation

[0016] 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.

[0017] Example: Refer to Figure 1-12 An automatic testing device for HVAC automotive air conditioners includes a soundproof room 1. An operating station 2 is located on one side of the soundproof room 1. An airflow testing device 3, a visual inspection machine 4, and a return line 5 are sequentially arranged on the other side of the soundproof room 1. A product positioning fixture 21 is placed on the operating station 2, and a product body 23 is mounted on the product positioning fixture 21. A performance noise testing station 9 and an insulation withstand voltage testing station 10 are located inside the soundproof room 1. An industrial camera 14 is mounted on the visual inspection machine 4. A lifting mechanism is located at the bottom of the product positioning fixture 21, and a plug-in connection mechanism is located on one side of the product positioning fixture 21. Automatic code reading mechanisms are installed on the performance noise testing station 9, the insulation withstand voltage testing station 10, and the airflow testing device 3.

[0018] Furthermore, the product positioning fixture 21 is equipped with multiple assembly positioning blocks 22, and the product body 23 is installed on the assembly positioning blocks 22. The two sides of the soundproof room 1 are respectively provided with a conveying inlet 6 and a conveying outlet 7. The soundproof room 1 is equipped with a room body lifting door 8, which is adapted to the conveying inlet 6 and the conveying outlet 7. One side of the soundproof room 1 is provided with a personnel entrance and exit 11. The product body 23 is installed on the product positioning fixture 21 for loading the HVAC assembly. The multiple assembly positioning blocks 22 can achieve precise positioning and installation, which is convenient for automatic positioning and transfer in various testing equipment. During operation, the operator places the product positioning fixture 21 with the product body 23 on the operating station 2 and then transports it into the soundproof room 1. The soundproof room 1 can effectively isolate external noise and control the internal environmental noise to within 30dB. The soundproof room 1 is equipped with a performance noise testing station 9 and an insulation withstand voltage testing station 10, which integrates insulation withstand voltage, performance operation, noise and other testing functions into the interior.

[0019] Furthermore, both the airflow testing device 3 and the appearance inspection machine 4 are equipped with a double-speed chain conveyor 15. The airflow testing device 3 is equipped with a defrost blowing test air duct 16 and a test box 17. The test box 17 is equipped with a passenger-side test air duct 18 and a driver-side test air duct 20 on both sides respectively. A wind speed controller 19 is installed on one side of the passenger-side test air duct 18. After the product body 23 passes through the soundproof room 1, it will enter the airflow testing device 3 for testing. Automatic positioning is achieved through the lifting mechanism, and connection is achieved through the plug-in conduction mechanism. After automatically scanning and identifying the product number information, the air outlets of the product body 23 assembly are connected to the test air ducts for airflow testing or blocked as required. The defrost blowing test air duct 16, passenger-side test air duct 18, and driver-side test air duct 20 can realize functions such as automatic mode switching, automatic gear shifting, and automatic shielding / opening of the test channel.

[0020] Furthermore, the automatic code reading mechanism includes a code reading cylinder 34 installed on the performance noise detection station 9, the insulation withstand voltage detection station 10, and the air volume detection device 3. A transition connecting plate 35 is installed on the code reading cylinder 34, and a code reader plate 36 is connected to the transition connecting plate 35. A code reader protective cover 37 is installed on the code reader plate 36, and a code reader body 38 is provided on the code reader protective cover 37. The lifting mechanism includes a lifting plate 27 fixedly installed below the product positioning fixture 21. A lifting base plate 24 is provided below the lifting plate 27. A lifting guide shaft 25 connects the lifting base plate 24 and the lifting plate 27. A lifting pad 26 is provided at the end of the lifting guide shaft 25. A fixture plate positioning pin 28 is provided on the top of the lifting plate 27. A lifting cylinder 29 is provided between the lifting base plate 24 and the lifting plate 27. The insertion and connection mechanism includes a mounting plate 30 fixedly installed on the side of the product positioning fixture 21. A slide plate is installed on the mounting plate 30. The cylinder 31 and the slide cylinder 31 are equipped with a plug-in terminal plate 32. A plug-in probe 33 is provided on one side of the plug-in terminal plate 32. A lifting mechanism is provided at the bottom of the product positioning fixture 21. The lifting cylinder 29 on the lifting mechanism can move the lifting plate 27 upward, thereby realizing the automatic positioning of the product positioning fixture 21. The fixture plate flows into each station, the stopper stops, the lifting cylinder 29 moves up, and the plug is inserted into the product positioning fixture 21 to complete the positioning. A plug-in conduction mechanism is provided on one side of the product positioning fixture 21. The plug-in conduction mechanism is fixed on one side of the line body. After the product positioning fixture 21 is completed, the slide cylinder 31 moves out and the plug-in probe 33 contacts the terminal on the fixture plate to realize the automatic conduction function. The equipment can automatically position and plug in conduction. The automatic code reading mechanism can automatically read the product number information through the code reader body 38, automatically scan and identify the product number information, and perform various tests on the HVAC assembly.

[0021] Furthermore, pneumatic lifting doors 12 are installed on both sides of the appearance inspection machine 4. A six-axis robot 13 is installed on the appearance inspection machine 4, and an industrial camera 14 is installed on the six-axis robot 13. When the fixture carrying the HVAC assembly enters the appearance inspection machine 4, the previous automatic positioning and plug-in connection are repeated. After automatically scanning and identifying the product number information, the six-axis robot 13, equipped with the industrial camera 14, performs various appearance inspections on the five sides of the product. It can automatically select the preset motion path and inspection elements according to the identified product number. After the inspection is completed, the product positioning fixture 21 flows out and returns to the origin through the return conveyor. The operator removes the inspected product body 23. The inspection results can be clearly seen on the display screen in front of the operator, which can guide the operator to return defective products. This equipment realizes fully automatic inspection of HVAC assemblies. Only manual labor is required to move the product into the special positioning fixture, which can also return automatically. The operator then removes the inspected product. The NG information of defective products is visualized, and the operator can rework according to the prompts, improving the yield rate and production efficiency, while also achieving maximum labor saving.

[0022] In use: The product body 23 is installed on the product positioning fixture 21 to load the HVAC assembly, facilitating automatic positioning and transfer in various testing equipment. The product body 23 is transported into the soundproof room 1, which effectively isolates external noise. The soundproof room 1 is equipped with a performance noise testing station 9 and an insulation withstand voltage testing station 10, integrating insulation withstand voltage, performance operation, noise, and other testing functions. The equipment can automatically position and connect. The automatic code reading mechanism, through the code reader body 38, can automatically read the product part number information, automatically scan and identify the part number information, and perform various tests on the HVAC assembly. After the product body 23 passes through the soundproof room 1... The product will enter the airflow detection equipment 3 for testing. Automatic positioning is achieved through a lifting mechanism, and connection is established through a plug-in mechanism. After automatically scanning and identifying the product number information, the airflow at each outlet of the product assembly 23 is connected to the test air duct for airflow testing or sealing, as required. It can automatically switch modes, automatically increase / decrease speed, and automatically shield / open the testing channel. When the fixture carrying the HVAC assembly enters the appearance inspection machine 4, the previous automatic positioning and plug-in connection are repeated. After automatically scanning and identifying the product number information, the six-axis robot 13, equipped with an industrial camera 14, performs various appearance inspections on the five sides of the product. It can automatically select based on the identified product number. With pre-set motion paths and detection elements, after detection, the product positioning fixture 21 flows out and returns to the origin via a return conveyor. The operator removes the detected product body 23. The detection results are clearly visible on the display screen in front of the operator, guiding them to return defective products. This equipment achieves fully automated detection of HVAC assemblies. Only manual loading of the product into the dedicated positioning fixture is required; the fixture can automatically return, and the operator can then remove the detected product. It visualizes NG (Not From Good) information for defective products, allowing operators to rework them based on the prompts, improving yield and production efficiency while maximizing labor savings. Each detection station can inspect the product... The surface barcode is read to identify the product number, automatically selects a dedicated testing program, and binds the test results to the product, ensuring uniqueness and traceability. All test data, presented in graphical and tabular formats, are locally saved and uploaded to the factory's MES system, successfully achieving factory digitization and informatization. Throughout the product lifecycle, test data is stored for easy traceability. Through these functions, many new testing items have been added, enabling mixed-flow production of different product numbers. Product number compatibility is high, data storage is powerful, automatic testing results are stable and reliable, production efficiency is high, significantly reducing labor costs and improving economics, thus solving many industry challenges.

[0023] 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 automatic detection device for HVAC automotive air conditioning, comprising a soundproof room (1), characterized in that, An operating station (2) is provided on one side of the quiet room (1), and an air volume detection device (3), an appearance inspection machine (4), and a return line (5) are arranged sequentially on the other side of the quiet room (1). A product positioning fixture (21) is placed on the operating station (2), and a product body (23) is arranged on the product positioning fixture (21). A performance noise detection station (9) and an insulation withstand voltage detection station (10) are arranged inside the quiet room (1). An industrial camera (14) is arranged on the appearance inspection machine (4). A lifting mechanism is arranged at the bottom of the product positioning fixture (21), and a plug-in conduction mechanism is arranged on one side of the product positioning fixture (21). An automatic code reading mechanism is arranged on the performance noise detection station (9), the insulation withstand voltage detection station (10), and the air volume detection device (3).

2. The device for automatic detection of HVAC automotive air conditioning according to claim 1, characterized in that, The product positioning fixture (21) is provided with multiple assembly positioning blocks (22), and the product body (23) is installed on the assembly positioning blocks (22).

3. The device for automatic detection of HVAC automotive air conditioning according to claim 1, characterized in that, The quiet room (1) is provided with a conveying inlet (6) and a conveying outlet (7) on both sides. The quiet room (1) is provided with a lifting door (8). The lifting door (8) is adapted to the conveying inlet (6) and the conveying outlet (7) respectively. The quiet room (1) is provided with a personnel entrance (11) on one side.

4. The device for automatic detection of HVAC automotive air conditioning according to claim 1, characterized in that, Both the air volume detection device (3) and the appearance inspection machine (4) are equipped with a double speed chain body (15). The air volume detection device (3) is equipped with a defrost blowing test air duct (16) and a test box (17). The test box (17) is equipped with a passenger driver test air duct (18) and a driver test air duct (20) on both sides respectively. The passenger driver test air duct (18) is equipped with an anemometer controller (19) on one side.

5. The device for automatic detection of HVAC automotive air conditioning according to claim 4, characterized in that, The automatic code reading mechanism includes a code reading cylinder (34) installed on the performance noise detection station (9), the insulation withstand voltage detection station (10), and the air volume detection device (3). A transition connecting plate (35) is installed on the code reading cylinder (34), a code reader plate (36) is connected to the transition connecting plate (35), a code reader protective cover (37) is installed on the code reader plate (36), and a code reader body (38) is provided on the code reader protective cover (37).

6. The device for automatic detection of HVAC automotive air conditioning according to claim 1, characterized in that, The lifting mechanism includes a lifting plate (27) fixedly installed below the product positioning fixture (21), a lifting base plate (24) is provided below the lifting plate (27), a lifting guide shaft (25) is connected between the lifting base plate (24) and the lifting plate (27), a lifting pad (26) is provided at the end of the lifting guide shaft (25), a fixture plate positioning pin (28) is provided at the top of the lifting plate (27), and a lifting cylinder (29) is provided between the lifting base plate (24) and the lifting plate (27).

7. The device for automatic detection of HVAC automotive air conditioning according to claim 1, characterized in that, The plug-in conduction mechanism includes a mounting plate (30) fixedly installed on the side of the product positioning fixture (21), a slide cylinder (31) is mounted on the mounting plate (30), a plug-in terminal plate (32) is mounted on the slide cylinder (31), and a plug-in probe (33) is provided on one side of the plug-in terminal plate (32).

8. The device for automatic detection of HVAC automotive air conditioning according to claim 1, characterized in that, The appearance inspection machine (4) is equipped with pneumatic lifting doors (12) on both sides. A six-axis robot (13) is installed on the appearance inspection machine (4), and an industrial camera (14) is installed on the six-axis robot (13).

Images