Vacuum filling airtight rack

Abstract

The invention belongs to the technical field of industrial automation equipment, and particularly relates to a vacuum filling airtight rack which comprises a machine cabinet, a second cabinet door is installed on the back face of the machine cabinet, moving trundles are installed on the bottom face of the machine cabinet, a placing frame is installed on the surface of one side of the machine cabinet, and a filling gun is placed on the inner side of the placing frame. A filling pump, a circulating filter, a liquid storage tank, a back suction separation tank combination, a circulating block, a filling through wall, a vacuum block assembly, a vacuum separation tank combination, a filling block assembly, a filling filter and a vacuum pump are arranged between the second cabinet door and the cabinet; the invention relates to a special movable device for vacuumizing and filling brake fluid of a brake-by-wire system product, so as to meet the basic performance verification requirement of the brake-by-wire system.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial automation equipment, and particularly relates to a vacuum filling and airtight bench. Background Art

[0002] Vacuum filling and airtightness are mainly applied to scenarios that require precise filling of liquids (such as refrigerants, lubricating oils, coolants, electronic potting adhesives, etc.) and system airtightness detection in a vacuum environment, which are commonly found in industries such as automobile manufacturing (such as air conditioning systems, braking systems), refrigeration equipment production, electronic device packaging, and medical device assembly. Its core function is to build a vacuum environment to achieve bubble-free and high-precision liquid filling, and perform leak detection on the sealing system to ensure stable product performance;

[0003] Traditional equipment is mostly fixedly installed or only equipped with fixed casters, which is inconvenient to move and difficult to adapt to the adjustment of production line layout or the needs of multi-station sharing. At the same time, components such as vacuum generating devices (such as vacuum pumps 211), filling systems (such as pump bodies, liquid storage tanks), filtering devices, and control systems are often dispersed in independent modules and rely on external pipelines and control lines for connection, resulting in large equipment volume, messy layout, occupying a large amount of station space, and the pipeline interfaces are prone to leakage due to vibration loosening;

[0004] Therefore, a vacuum filling and airtight bench is designed to solve the above problems. Summary of the Invention

[0005] To solve the problems raised in the above background art, the present invention provides a vacuum filling and airtight bench, which is a dedicated mobile device for evacuating and filling brake fluid for products of the electronic braking system to meet the basic performance verification requirements of the electronic braking system.

[0006] To achieve the above object, the present invention provides the following technical solution: A vacuum filling and airtight bench includes a cabinet. A second cabinet door is installed on the back surface of the cabinet. Movable casters are installed on the bottom surface of the cabinet. A placement rack is installed on one side surface of the cabinet. A filling gun is placed inside the placement rack. A filling pump, a circulation filter, a liquid storage tank, a back suction separation tank combination, a circulation block, a filling through wall, a vacuum block assembly, a vacuum separation tank combination, a filling block assembly, a filling filter, and a vacuum pump are arranged between the second cabinet door and the cabinet.

[0007] Preferably, as a vacuum filling and airtight bench of the present invention, a partition is fixedly connected to the inside of the cabinet, and mounting plates are fixedly connected to both the partition and the inner surface of the cabinet. The filling pump, the circulation filter, the liquid storage tank, the back suction separation tank combination, the circulation block, the filling through wall, the vacuum block assembly, the vacuum separation tank combination, the filling block assembly, the filter, and the vacuum pump are all installed on the inner surface of the cabinet through the mounting plates.

[0008] Preferably, for a vacuum filling and airtight bench of the present invention, a hanging swing arm is fixedly connected to the outer surface of the cabinet.

[0009] Preferably, for a vacuum filling and airtight bench of the present invention, a fan for ventilation and heat dissipation is installed on the upper surface of the cabinet.

[0010] Preferably, for a vacuum filling and airtight bench of the present invention, a three-color alarm lamp is installed on the top of the cabinet.

[0011] Preferably, for a vacuum filling and airtight bench of the present invention, a touch screen and an all-in-one machine are installed on the front side of the cabinet.

[0012] Preferably, for a vacuum filling and airtight bench of the present invention, a push handle is fixedly connected to the side of the cabinet away from the filling gun.

[0013] Preferably, for a vacuum filling and airtight bench of the present invention, a clamping fixture is installed on the filling gun.

[0014] Preferably, for a vacuum filling and airtight bench of the present invention, an electrical panel is arranged inside the cabinet.

[0015] Preferably, for a vacuum filling and airtight bench of the present invention, the filling pump, the circulation filter, the liquid storage tank, the combined back suction separation tank, the circulation block, the filling through wall, the vacuum block assembly, the combined vacuum separation tank, the filling block assembly, the filter and the vacuum pump are sequentially connected by pipelines.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This design significantly reduces the volume of the equipment, optimizes the space layout, and is convenient for unified maintenance (such as centralized maintenance through the second cabinet door (121) on the back), reduces the installation and commissioning costs, avoids the problems of complex external pipelines and easy leakage between components in the prior art, improves the system tightness and reliability through the built-in pipeline layout, simplifies the fluid transmission path, and improves the filling accuracy and efficiency;

[0018] Supports the flexible movement of the equipment on the production line to adapt to the requirements of multi-station switching. Compared with the traditional fixed bench, the adaptability of the use scenario is significantly improved;

[0019] Through special modules such as the vacuum block assembly and the filling block assembly, combined with the circulation filter and the combined back suction separation tank, the stable maintenance of the vacuum degree and the accurate measurement of liquid filling are realized. Compared with the simple vacuum device in the prior art, the accuracy of airtight detection and the consistency of filling quality are significantly improved. Description of the Drawings

[0020] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of the cabinet in the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the liquid storage tank in the present invention;

[0024] Figure 4 is a schematic diagram of the structure of the mounting plate in the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the filling through-wall in the present invention;

[0026] In the figure:

[0027] 11. Movable casters; 12. Cabinet; 121. Second cabinet door; 122. Mounting plate; 123. Partition; 13. Filling gun; 131. Placing rack; 14. Suspension swing arm; 15. Touch screen; 16. Fan; 17. Three-color alarm light; 18. All-in-one machine; 19. Push handle; 21. Filling pump; 22. Circulation filter; 23. Liquid storage tank; 24. Suction-back separation tank combination; 25. Circulation block; 26. Filling through-wall; 27. Vacuum block assembly; 28. Vacuum separation tank combination; 29. Filling block assembly; 210. Filling filter; 211. Vacuum pump. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0029] As Figure 1 shown;

[0030] A vacuum filling airtight bench.

[0031] In this implementation: Most traditional devices are fixedly installed or only equipped with fixed casters, making them inconvenient to move and difficult to adapt to the adjustment of the production line layout or the needs of multi-station sharing. At the same time, components such as vacuum generating devices (such as vacuum pump 211), filling systems (such as pump bodies, liquid storage tanks), filtering devices, and control systems are often scattered and arranged as independent modules, relying on external pipelines and control lines for connection, resulting in large equipment volume, messy layout, occupying a large amount of station space, and pipeline interfaces are prone to leakage due to vibration loosening. Therefore, a vacuum filling and airtight bench is designed to solve the above problems.

[0032] Furthermore:

[0033] Such as Figures 1 to 5 shown:

[0034] Combined with the above content: It includes a cabinet 12, a second cabinet door 121 is installed on the back of the cabinet 12, moving casters 11 are installed on the bottom surface of the cabinet 12, a placement rack 131 is installed on one side surface of the cabinet 12, a filling gun 13 is placed inside the placement rack 131, and a filling pump 21, a circulation filter 22, a liquid storage tank 23, a back suction separation tank combination 24, a circulation block 25, a filling through-wall 26, a vacuum block assembly 27, a vacuum separation tank combination 28, a filling block assembly 29, a filling filter 210, and a vacuum pump 211 are provided between the second cabinet door 121 and the cabinet 12.

[0035] In this implementation: By setting a filling pump 21, a circulation filter 22, a liquid storage tank 23, a back suction separation tank combination 24, a circulation block 25, a filling through-wall 26, a vacuum block assembly 27, a vacuum separation tank combination 28, a filling block assembly 29, a filling filter 210, and a vacuum pump 211 inside the cabinet 12, an integrated layout of "external operation, internal function" is formed. The vacuum filling and airtight bench can be easily moved to the working position through the moving casters 11, and the moving casters 11 are adjustable shock-absorbing casters, making the equipment frame not only able to withstand transportation bumps and impacts, can be moved for testing, but also has the characteristics of firm use, stable operation, and safety and reliability.

[0036] It should be noted that: The second cabinet door 121 is a cabinet door installed on the back of the cabinet 12. The vacuum filling and airtight bench is composed of three parts: fluid control, pneumatic control, and electrical control. Fluid control mainly performs real-time detection control, quantitative control, etc. of oil filling and system vacuum pressure; the pneumatic control part mainly completes the supply of pilot gas for each fluid valve and the control of the clamping fixture on the filling gun 13; the electrical control part mainly completes the process control, detection of the system, processing and storage of process parameter data, as well as real-time monitoring, data display, and fault alarm of the system operation.

[0037] Even further:

[0038] In an alternative embodiment, a partition 123 is fixedly connected to the inner side of the cabinet 12, and mounting plates 122 are fixedly connected to both the partition 123 and the inner surface of the cabinet 12. The filling pump 21, the circulation filter 22, the liquid storage tank 23, the back-suction separation tank assembly 24, the circulation block 25, the filling through-wall 26, the vacuum block assembly 27, the vacuum separation tank assembly 28, the filling block assembly 29, the filling filter 210, and the vacuum pump 211 are all mounted on the inner surface of the cabinet 12 through the mounting plates 122.

[0039] In this embodiment: Structural components such as the filling pump 21, the circulation filter 22, the liquid storage tank 23, the back-suction separation tank assembly 24, the circulation block 25, the filling through-wall 26, the vacuum block assembly 27, the vacuum separation tank assembly 28, the filling block assembly 29, the filling filter 210, and the vacuum pump 211 are fixed to the inner side of the cabinet 12 through the mounting plates 122.

[0040] Furthermore:

[0041] In an alternative embodiment, a hanging swing arm 14 is fixedly connected to the outer surface of the cabinet 12.

[0042] In this embodiment: The hanging swing arm 14 is used to hang the filling gun pipeline, tools, or auxiliary materials (such as hoses, pressure gauges), avoiding pipeline dragging on the ground causing wear or entanglement, and keeping the operation area clean. At the same time, the swing arm can be flexibly adjusted in angle to adapt to the height and position requirements of different workstations, enhancing the ergonomic experience.

[0043] Furthermore:

[0044] In an alternative embodiment, a fan 16 for ventilation and heat dissipation is mounted on the upper surface of the cabinet 12.

[0045] In this embodiment: The fan 16 reduces the temperature inside the cabinet 12 through forced convection for the heat generated during the operation of internal components (such as pump bodies, electrical components), preventing component aging or failures caused by overheating (such as the reduced efficiency of the vacuum pump 211 during long-term high-temperature operation). The heat dissipation design ensures the long-term stable operation of the equipment and extends its service life.

[0046] Furthermore:

[0047] In an alternative embodiment, a three-color alarm light 17 is mounted on the top of the cabinet 12.

[0048] In this embodiment: The three-color alarm light 17 real-time feedbacks the equipment status through different colors (red / yellow / green). Green: normal operation; Yellow: warning (such as insufficient vacuum, low liquid level); Red: fault shutdown (such as pump body overload, pipeline leakage); The visual alarm system improves operation safety, avoids missing during manual inspection, and quickly locates abnormal states.

[0049] Furthermore:

[0050] In an optional embodiment, a touch screen 15 and an all-in-one machine 18 are installed on the front side of the cabinet 12.

[0051] In this embodiment: The touch screen 15 is set as a human-machine interface for inputting filling parameters (such as vacuum degree, filling volume), monitoring real-time data (such as pressure curve, liquid level), and selecting working modes (manual / automatic). The all-in-one machine 18 is set as an integrated control system (PLC) to process sensor signals and execute logic control (such as starting and stopping the pump body, switching valves), realizing automated operation, replacing traditional button-type control, and improving the intelligent level.

[0052] Furthermore:

[0053] In an optional embodiment, a push handle 19 is fixedly connected to a side of the cabinet 12 away from the filling gun 13.

[0054] In this embodiment: The push handle 19 cooperates with the moving casters 11 to facilitate the operator to push the equipment for movement.

[0055] Furthermore:

[0056] In an optional embodiment, a clamping fixture is installed on the filling gun 13.

[0057] In this embodiment: By installing a clamping fixture on the filling gun 13, the connection between the filling gun 13 and the product during the filling process is ensured to be tight, preventing brake fluid leakage, and improving the accuracy and reliability of filling.

[0058] Furthermore:

[0059] In an optional embodiment, an electrical panel is arranged inside the cabinet 12.

[0060] In this embodiment: The electrical panel is used to integrate the power control module (such as circuit breaker, relay), signal interface (such as sensor terminal block) and control lines of the equipment, avoiding short circuits or interference caused by exposed lines.

[0061] Furthermore:

[0062] In an optional embodiment, the filling pump 21, the circulation filter 22, the liquid storage tank 23, the back suction separation tank assembly 24, the circulation block 25, the filling through-wall 26, the vacuum block assembly 27, the vacuum separation tank assembly 28, the filling block assembly 29, the filling filter 210 and the vacuum pump 211 are sequentially connected by pipelines.

[0063] In this embodiment:

[0064] Vacuum system: Vacuum pump 211 → Vacuum separation tank assembly 28 → Vacuum block assembly 27 → Detection station (vacuum pumping);

[0065] Filling system: Liquid storage tank 23 → Filling pump 21 → Circulation filter 22 → Filling block assembly 29 → Filling gun 13 → Workpiece (liquid filling);

[0066] Circulation and separation: The back suction separation tank assembly 24 recovers the residual liquid, and the circulation block 25 realizes the liquid circulation filtration to avoid impurity blockage of the pipeline.

[0067] Working principle: When the vehicle / chassis enters the working process, the PLC operating system first judges whether the brake fluid has been filled. For the vehicle that has been filled with brake fluid, the circulation block 25 of the fluid control part starts to function to complete the recovery work of the brake fluid. The circulation block 25 can control the flow direction of the brake fluid so that it flows back from the vehicle's brake system to the corresponding recovery device, such as the liquid storage tank 23;

[0068] After the recovery is completed, a series of vacuum operations are carried out on the container to be filled. First, through the vacuum pump 211, the vacuum separation tank assembly 28, the vacuum block assembly 27, and the gun vacuum tube connected to the filling overwall 26 (the gun vacuum tube refers to the vacuum tube connected to the filling gun, which is mainly used for vacuum pumping of products), the inside of the product is pumped into a high vacuum state. The vacuum pump 211 provides the pumping power, the vacuum separation tank assembly 28 is used to separate impurities and liquids in the gas to ensure the purity of the vacuum system, and the vacuum block assembly 27 plays a role in controlling the on / off of the vacuum pipeline and adjusting the vacuum degree. After being pumped into a high vacuum, it is maintained for a period of time, and then the vacuum injection valve of the product oil pot is closed for large leak and small leak detection to judge the airtight performance of the system. If the detection is unqualified, the system automatically gives a prompt through the fault alarm function of the electrical control part, and is prompted by the three-color alarm light 17 installed on the top of the cabinet 12, and automatically exits the vacuum filling operation;

[0069] If the airtight detection is qualified, a secondary vacuum operation is carried out to further improve the vacuum degree of the system. Then, the filling pump 21 is turned on to apply the brake fluid with a set pressure to the mouth of the product oil pot. The filling pump 21 precisely controls the flow rate and pressure of the brake fluid. After 1 minute (the time can be set), the oil injection valve and the oil injection pump are closed. At this time, the filling amount of the brake fluid in the product reaches a certain level. Then, the vacuum injection valve installed on the vacuum block assembly 27 is reopened to apply vacuum to the product. After 1 minute (the time can be set), the vacuum injection operation is completed. Finally, dry air is introduced and back suction is carried out, and the back suction separation tank assembly 24 starts to work to suck the excess liquid back to the required liquid level, thus completing a filling cycle;

[0070] The pneumatic control part mainly completes the supply of the pilot gas for each fluid valve and the control of the clamping fixture on the filling gun 13. During the whole working process, it provides stable pilot gas for the fluid valve to ensure that the fluid valve can be accurately opened and closed, so as to control the flow direction and flow rate of the fluid. At the same time, through the control of the clamping fixture on the filling gun 13, it ensures that the filling gun 13 is tightly connected to the product during the filling process, prevents the leakage of brake fluid, and improves the accuracy and reliability of filling. The filling gun 13 is placed inside the placement rack 131 installed on the side surface of the cabinet 12;

[0071] During the test, the vacuum filling and airtight bench can achieve one-key operation. The operator only needs to click on the corresponding test item on the touch screen 15, and the system can automatically perform a series of related actions such as testing, displaying the test results, and collecting relevant data, which greatly improves the work efficiency and operation convenience, and at the same time reduces the possibility of human operation errors. An electrical panel is arranged inside the cabinet 12, providing a stable working environment for the electrical control part. A fan 16 for ventilation and heat dissipation is installed on the upper surface of the cabinet 12 to ensure the normal operating temperature of the equipment.

[0072] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vacuum filling and airtight bench, comprising a cabinet (12), a second cabinet door (121) is installed on the back surface of the cabinet (12), moving casters (11) are installed on the bottom surface of the cabinet (12), and a placing rack (131) is installed on one side surface of the cabinet (12), characterized in that: Inside the placement rack (131), a filling gun (13) is placed. Between the second cabinet door (121) and the cabinet (12), there are arranged a filling pump (21), a circulation filter (22), a liquid storage tank (23), a back suction separation tank combination (24), a circulation block (25), a filling through-wall (26), a vacuum block assembly (27), a vacuum separation tank combination (28), a filling block assembly (29), a filling filter (210), and a vacuum pump (211); Inside the cabinet (12), a partition (123) is fixedly connected. Both the partition (123) and the inner surface of the cabinet (12) are fixedly connected with mounting plates (122). The filling pump (21), the circulation filter (22), the liquid storage tank (23), the back suction separation tank combination (24), the circulation block (25), the filling through-wall (26), the vacuum block assembly (27), the vacuum separation tank combination (28), the filling block assembly (29), the filling filter (210), and the vacuum pump (211) are all installed on the inner surface of the cabinet (12) through the mounting plates (122); On the top of the cabinet (12), a three-color alarm lamp (17) is installed; On the front side of the cabinet (12), a touch screen (15) and an all-in-one machine (18) are installed; The filling pump (21), the circulation filter (22), the liquid storage tank (23), the back suction separation tank combination (24), the circulation block (25), the filling through-wall (26), the vacuum block assembly (27), the vacuum separation tank combination (28), the filling block assembly (29), the filling filter (210), and the vacuum pump (211) are sequentially connected by pipelines; 2. The vacuum filling airtight bench according to claim 1, characterized in that: On the outer surface of the cabinet (12), a hanging swing arm (14) is fixedly connected; 3. The vacuum filling airtight bench according to claim 1, characterized in that: On the upper surface of the cabinet (12), a fan (16) for ventilation and heat dissipation is installed; On one side of the cabinet (12) away from the filling gun (13), a pushing handle (19) is fixedly connected; 4. The vacuum filling airtight bench according to claim 1, characterized in that: A clamping fixture is installed on the filling gun (13); 5. The vacuum filling airtight bench according to claim 1, characterized in that: Inside the cabinet (12), an electrical panel is arranged.

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