Servo vacuum liquid filling hydraulic loading equipment

Abstract

The utility model discloses servo vacuum liquid filling press fitting equipment which comprises a rack, a workbench is fixedly arranged in the middle of the rack, a vacuum liquid filling sealing mechanism is arranged on the upper portion of the workbench, and a movable press fitting mechanism is arranged on the upper portion of the rack. The vacuum liquid filling sealing mechanism comprises a base, a positioning sleeve used for containing the automobile hydraulic bushing is arranged in the middle of the base, and an inflatable sealing ring is arranged on the upper portion of the positioning sleeve. The movable press-fitting mechanism comprises a servo electric cylinder vertically and fixedly arranged on the upper portion of the rack, the telescopic end of the servo electric cylinder is fixedly connected with a movable plate, a pressing plate is fixedly arranged at the bottom of the movable plate, and a pressing head right facing a middle hole of the positioning sleeve is fixedly arranged at the bottom of the pressing plate. According to the utility model, the automatic vacuumizing, liquid filling, press-fitting sealing and residual liquid recycling operations of various hydraulic bushings with different models and sizes can be realized, the equipment is stable and reliable, the sealing performance of the automobile hydraulic bushing can be ensured, and the product quality and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile hydraulic bushing production and processing equipment, in particular to a servo vacuum filling hydraulic assembly equipment. Background Art

[0002] Traditional rubber bushings provide limited damping and cannot quickly attenuate body vibrations caused by bumpy roads or sudden acceleration or deceleration, so their scope of use is increasingly limited. Since hydraulic bushings can provide large damping at low frequencies and large amplitudes, they can better reduce vibrations, so more and more cars are using hydraulic bushings. In the production process of automobile hydraulic inner bushings, it is necessary to fill the liquid cavity of its rubber inner spring with liquid, and then press the inner spring of the bushing into the outer shell by press-fitting. However, at present, the filling and press-fitting sealing of automobile hydraulic bushings need to be completed step by step through different equipment. On the one hand, the production efficiency is low, and the continuity of the operation is poor, and leakage is prone to occur. Therefore, a servo vacuum filling and hydraulic assembly equipment for automobile hydraulic bushing production is developed. Utility Model Content

[0003] The purpose of the utility model is to provide a servo vacuum filling hydraulic loading device to solve the technical problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a servo vacuum filling and liquid assembly equipment, comprising a frame, a workbench is fixedly arranged in the middle of the frame, a vacuum filling and sealing mechanism is arranged on the upper part of the workbench, and a movable pressing mechanism is arranged on the upper part of the frame.

[0006] The vacuum liquid filling sealing mechanism includes a base, a positioning sleeve for placing an automobile hydraulic bushing is arranged in the middle of the base, and an inflatable sealing ring is arranged on the upper part of the positioning sleeve; a low vacuum interface, a high vacuum interface, a liquid inlet interface, a residual liquid outlet interface and a positive pressure blowing interface which are connected with the interior of the positioning sleeve are arranged on the outside of the base, and the low vacuum interface, high vacuum interface, liquid inlet interface, residual liquid outlet interface and positive pressure blowing interface are respectively connected with the low vacuum pipeline, high vacuum pipeline, liquid filling pipeline, residual liquid extraction pipeline and positive pressure blowing pipeline through corresponding stop valves.

[0007] The movable pressing mechanism includes a servo electric cylinder vertically fixedly arranged on the upper part of the frame, the telescopic end of the servo electric cylinder is fixedly connected to the movable plate, the bottom of the movable plate is fixedly provided with a pressing plate, and the bottom of the pressing plate is fixedly provided with a pressing head facing the middle hole of the positioning sleeve.

[0008] Furthermore, the low vacuum interface, the high vacuum interface and the positive pressure blowing interface are all connected to the air flow channel arranged inside the base, the air flow channel is connected to the air flow port arranged on the base, one end of the air flow port is connected to the interior of the positioning sleeve, and the other end is provided with a stop valve; the liquid inlet interface is connected to the liquid filling channel arranged in the base, the liquid filling channel is connected to the liquid filling port arranged on the base, one end of the liquid filling port is connected to the interior of the positioning sleeve, and the other end is provided with a stop valve; the residual liquid outlet interface is connected to the residual liquid channel arranged in the base, the residual liquid channel is connected to the residual liquid extraction port arranged on the base, one end of the residual liquid extraction port is connected to the interior of the positioning sleeve, and the other end is provided with a stop valve.

[0009] Furthermore, the air flow port, the liquid filling port and the residual liquid extraction port are located at the same height and below the inflatable sealing ring.

[0010] Furthermore, a vacuum gauge interface is provided on the airflow channel, and a vacuum gauge is provided outside the vacuum gauge interface.

[0011] Furthermore, a jack that seals and slides with the positioning sleeve is disposed inside the base, and a vertical driving cylinder is fixedly disposed at the bottom of the workbench. The telescopic end of the driving cylinder passes through the workbench and is fixedly connected to the bottom of the jack.

[0012] Furthermore, two limiting guide pillars are symmetrically fixedly arranged on the base, and two limiting sliding sleeves which are respectively slidably matched with the two limiting guide pillars are fixedly arranged on the bottom of the pressure plate.

[0013] Furthermore, an infrared sensor for detecting whether a bushing is placed inside the positioning sleeve is fixedly arranged on the top of the base.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are:

[0015] The utility model can be used as special equipment for filling and hydraulically assembling automobile hydraulic bushings. When the automobile hydraulic bushings are filled with liquid, the inner spring of the hydraulic bushing can be pressed into the outer shell, and automatic vacuuming, filling, press-fitting and sealing as well as residual liquid recovery operations of hydraulic bushings of various models and sizes can be realized. The equipment is stable and reliable, can ensure the sealing performance of the automobile hydraulic bushings, and is conducive to improving product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the vacuum liquid filling sealing mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of part of the structure of the base;

[0020] Figure 4 for Figure 3 Schematic diagram of another direction;

[0021] Figure 5 It is a schematic diagram of the movable pressing mechanism of the utility model;

[0022] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Workbench; 3. Base; 4. Positioning sleeve; 5. Inflatable sealing ring; 6. Low vacuum interface; 7. High vacuum interface; 8. Liquid inlet interface; 9. Residual liquid outlet interface; 10. Positive pressure blowing interface; 11. Stop valve; 12. Low vacuum pipeline; 13. High vacuum pipeline; 14. Liquid filling pipeline; 15. Residual liquid extraction pipeline; 16. Air flow inlet; 17. Liquid filling port; 18. Residual liquid extraction port; 19. Infrared sensor; 20. Vacuum gauge interface; 21. Top head; 22. Servo electric cylinder; 23. Movable plate; 24. Pressing plate; 25. Pressing head; 26. Limiting guide column; 27. Limiting sleeve. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 5 As shown, a servo vacuum filling and liquid assembly equipment comprises a frame 1, a horizontal workbench 2 is fixedly installed in the middle of the frame, a vacuum filling and sealing mechanism is arranged on the upper part of the workbench 2, and a movable pressing mechanism is arranged on the upper part of the frame.

[0024] The vacuum filling and sealing mechanism comprises a base 3, a positioning sleeve 4 for placing an automobile hydraulic bushing is installed in the middle of the base 3, and an inflatable sealing ring 5 is installed on the upper part of the positioning sleeve 4. The outside of the base is provided with a low vacuum interface 6, a high vacuum interface 7, a liquid inlet interface 8, a residual liquid outlet interface 9 and a positive pressure blowing interface 10 which are connected with the inside of the positioning sleeve 4. The low vacuum interface 6, the high vacuum interface 7, the liquid inlet interface 8, the residual liquid outlet interface 9 and the positive pressure blowing interface 10 are respectively connected with a low vacuum pipeline 12, a high vacuum pipeline 13, a filling pipeline 14, a residual liquid extraction pipeline 15 and a positive pressure blowing pipeline through corresponding stop valves 11.

[0025] In this embodiment, the low vacuum interface 6, the high vacuum interface 7 and the positive pressure blowing interface 10 are all connected to the air flow channel provided inside the base 3, and the air flow channel is connected to the air flow port 16 installed on the base 3, one end of the air flow port 16 is connected to the inside of the positioning sleeve 4, and the other end is equipped with a stop valve 11. The liquid inlet interface 8 is connected to the liquid filling channel provided in the base 3, and the liquid filling channel is connected to the liquid pipe port 17 installed on the base 3, one end of the liquid pipe port 17 is connected to the inside of the positioning sleeve 4, and the other end is equipped with a stop valve 11. The residual liquid outlet interface 9 is connected to the residual liquid channel provided in the base 3, and the residual liquid channel is connected to the residual liquid extraction port 18 installed on the base 3, one end of the residual liquid extraction port 18 is connected to the inside of the positioning sleeve 4, and the other end is equipped with a stop valve 11.

[0026] The air flow port 16 , the liquid pipe port 17 and the residual liquid extraction port 18 are located at the same height and below the inflatable sealing ring 5 .

[0027] As a further improvement of the present invention, an infrared sensor 19 for detecting whether an automobile hydraulic bushing is placed inside the positioning sleeve 4 is fixedly installed on the top of the base 3 .

[0028] In addition, the air flow channel is connected to a vacuum gauge interface 20 , and a vacuum gauge is installed outside the vacuum gauge interface 20 .

[0029] The base 3 is internally provided with a plug 21 that is in sealing and sliding cooperation with the positioning sleeve 4, and the bottom of the workbench 2 is fixedly provided with a vertical driving cylinder, the telescopic end of which penetrates the workbench 2 and is fixedly connected to the bottom of the plug 21. By driving the plug 21 to move up and down through the driving cylinder, the height of the automotive hydraulic bushing installed in the positioning sleeve 4 can be adjusted, so that the vacuum canned sealing mechanism can adapt to hydraulic bushings of different models and sizes.

[0030] The movable pressing mechanism includes a servo electric cylinder 22 vertically fixedly installed on the upper part of the frame 1, the telescopic end of the servo electric cylinder 22 is fixedly connected to the movable plate 23, a pressing plate 24 is fixedly installed at the bottom of the movable plate 23, and a pressing head 25 facing the center hole of the positioning sleeve 4 is fixedly installed at the bottom of the pressing plate 24.

[0031] In addition, two vertical limiting guide pillars 26 are symmetrically fixedly installed on the base 3, and two limiting sliding sleeves 27 that are respectively slidably matched with the two limiting guide pillars 26 are fixedly installed on the bottom of the pressure plate 24.

[0032] In addition, the utility model also includes a canning assembly, which includes a vacuum control unit, a liquid storage tank control unit, a residual liquid extraction control unit, and an external positive pressure control unit arranged in a frame, the vacuum control unit is connected to a low vacuum pipeline 12 and a high vacuum pipeline 13, the liquid storage tank control unit is connected to a liquid filling pipeline 14, the residual liquid extraction control unit is connected to a residual liquid extraction pipeline 15, and the external positive pressure control unit is connected to a positive pressure blowing pipeline. The above-mentioned components have the same structure and working principle as the corresponding components of the Chinese invention patent (patent number CN201710458407.2) proposed by the applicant in 2017, entitled A canning device and its working method, and will not be discussed in detail in this specification.

[0033] The working process of the utility model is as follows:

[0034] The automobile hydraulic bushing to be processed is placed in the positioning sleeve 4, and the driving cylinder can be used to drive the head to move so that the height of the filling port of the automobile hydraulic bushing corresponds to the height of the air flow port, the filling port and the residual liquid extraction port. Then the servo electric cylinder 22 is activated to move the pressing plate 24 and the pressing head 25 downward until the pressing head abuts against the upper end of the automobile hydraulic bushing to form a pre-pressure on the automobile hydraulic bushing, and then the inflatable sealing ring 5 is inflated to form a sealed environment inside the positioning sleeve 4.

[0035] During the working process, all stop valves are in a normally closed state. First, the vacuum operation is carried out. The stop valve 11 located on the air flow port 16 and the low vacuum interface 6 is opened, and the vacuum control unit is started to control the low vacuum pump to perform vacuum. The air in the automobile hydraulic bushing and the positioning sleeve is extracted from the low vacuum pipeline 12 through the air flow port 16, the air flow channel, and the low vacuum interface 6. Then the stop valve on the low vacuum interface 6 is closed, and the stop valve on the high vacuum interface 7 is opened. The high vacuum pump continuously performs vacuum operation on the automobile hydraulic bushing and the positioning sleeve through the high vacuum pipeline. Until the vacuum gauge detects that the vacuum degree inside the positioning sleeve meets the set requirements, the stop valves on the high vacuum interface 7 and the air flow port 16 are closed. After that, the liquid storage tank control unit is started, the stop valves on the pipe liquid port 17 and the liquid inlet interface 8 are opened, and the liquid in the liquid storage tank is filled into the liquid cavity of the automobile hydraulic bushing in the positioning sleeve through the liquid filling pipeline 14, the liquid inlet interface 8, the liquid filling channel and the pipe liquid port 17 under electrical control. After reaching the set filling volume, the stop valves on the pipe liquid port 17 and the liquid inlet interface 8 are closed. After that, the servo electric cylinder 22 continues to extend, driving the pressure head 25 to press the inner spring of the automobile hydraulic bushing into the inside of the shell, completing the press-fit sealing of the automobile hydraulic bushing. Finally, the residual liquid extraction control unit and the external positive pressure control unit are opened, the residual liquid outlet interface 9, the residual liquid extraction port 18, the positive pressure blowing interface 10 and the stop valve on the airflow port are opened, and the external positive air pressure enters through the positive pressure blowing pipeline, the positive pressure blowing interface 10, the airflow channel and the airflow port 16, thereby generating pressure inside the positioning sleeve, thereby assisting the residual liquid extraction port to extract the residual liquid, and the residual liquid inside the positioning sleeve is recovered into the residual liquid tank through the residual liquid extraction port 18, the residual liquid channel, the residual liquid outlet interface 9 and the residual liquid extraction pipeline 15. After that, the residual liquid outlet interface 9, the residual liquid extraction port 18, the positive pressure blowing interface 10 and the stop valve on the airflow port are closed, and the servo electric cylinder 22 drives the pressure head to reset, and the operator can take out the automobile hydraulic bushing after the filling and assembly process is completed.

[0036] The liquid storage tank control unit and the embodiments described above are only descriptions of the preferred methods of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements made to the technical scheme of the utility model by ordinary technicians in this field should fall within the protection scope determined by the claims of the utility model.

Claims

1. A servo vacuum filling and hydraulic packaging equipment, characterized in that: It comprises a frame, a workbench is fixedly arranged in the middle of the frame, a vacuum filling and sealing mechanism is arranged on the upper part of the workbench, and a movable pressing mechanism is arranged on the upper part of the frame; The vacuum filling and sealing mechanism comprises a base, a positioning sleeve for placing an automobile hydraulic bushing is arranged in the middle of the base, and an inflatable sealing ring is arranged on the upper part of the positioning sleeve; a low vacuum interface, a high vacuum interface, a liquid inlet interface, a residual liquid outlet interface and a positive pressure blowing interface which are connected with the interior of the positioning sleeve are arranged on the outside of the base, and the low vacuum interface, the high vacuum interface, the liquid inlet interface, the residual liquid outlet interface and the positive pressure blowing interface are respectively connected with the low vacuum pipeline, the high vacuum pipeline, the filling pipeline, the residual liquid extraction pipeline and the positive pressure blowing pipeline through corresponding stop valves; The movable pressing mechanism includes a servo electric cylinder vertically fixedly arranged on the upper part of the frame, the telescopic end of the servo electric cylinder is fixedly connected to the movable plate, the bottom of the movable plate is fixedly provided with a pressing plate, and the bottom of the pressing plate is fixedly provided with a pressing head facing the middle hole of the positioning sleeve.

2. The servo vacuum filling and hydraulic packaging equipment according to claim 1 is characterized in that: The low vacuum interface, the high vacuum interface and the positive pressure blowing interface are all connected with the air flow channel arranged inside the base, the air flow channel is connected with the air flow port arranged on the base, one end of the air flow port is connected with the interior of the positioning sleeve, and the other end is provided with a stop valve; the liquid inlet interface is connected with the liquid filling channel arranged in the base, the liquid filling channel is connected with the liquid filling port arranged on the base, one end of the liquid filling port is connected with the interior of the positioning sleeve, and the other end is provided with a stop valve; the residual liquid outlet interface is connected with the residual liquid channel arranged in the base, the residual liquid channel is connected with the residual liquid extraction port arranged on the base, one end of the residual liquid extraction port is connected with the interior of the positioning sleeve, and the other end is provided with a stop valve.

3. The servo vacuum filling and hydraulic packaging equipment according to claim 2 is characterized in that: The air flow port, the liquid filling port and the residual liquid extraction port are located at the same height and below the inflatable sealing ring.

4. The servo vacuum filling and packaging equipment according to claim 2 is characterized in that: The airflow channel is connected to a vacuum gauge interface, and a vacuum gauge is arranged outside the vacuum gauge interface.

5. The servo vacuum filling and packaging equipment according to claim 1 is characterized in that: A ram that seals and slides with the positioning sleeve is disposed inside the base, a vertical driving cylinder is fixedly disposed at the bottom of the workbench, and a telescopic end of the driving cylinder passes through the workbench and is fixedly connected to the bottom of the ram.

6. The servo vacuum filling and packaging equipment according to claim 1, characterized in that: Two limiting guide pillars are symmetrically fixedly arranged on the base, and two limiting sliding sleeves which are respectively slidably matched with the two limiting guide pillars are fixedly arranged on the bottom of the pressure plate.

7. The servo vacuum filling and packaging equipment according to claim 1, characterized in that: An infrared sensor for detecting whether a bushing is placed inside the positioning sleeve is fixedly arranged on the top of the base.

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