Oil pump air tightness detection device

Abstract

The invention relates to the technical field of air tightness detection, in particular to an oil pump air tightness detection device which comprises a machining seat and a detection assembly. The detection assembly comprises a transposition frame, a mounting bracket, a transposition frame, a lifting frame, a sealing component, a water filling component and an adjusting component; the transposition frame is rotationally installed on the machining base, the four installation supports are fixedly installed on the outer side of the transposition frame, the transposition frame is installed on the installation supports in a sliding mode, the lifting frame is installed on the transposition frame in a sliding mode, the sealing component is connected with the lifting frame and used for sealing a placed oil pump, and the water filling component is connected with the machining base. And the adjusting component is connected with the position changing frame and used for driving the position changing frame and the lifting frame to move, automatic detection can be carried out on the air pump with the oil inlet and the oil outlet blocked through the arranged components, operation is more convenient and faster when the oil pump is detected, the detection efficiency is improved, and the detection efficiency is improved. And the actual detection efficiency of the oil pump is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of airtightness detection, and particularly to an airtightness detection device for an oil pump. Background Art

[0002] An oil pump is a core device that converts mechanical energy into hydraulic energy. Its core function is to transport liquid from a low-pressure area to a high-pressure area through the processes of oil suction and oil pressure, providing a continuous and stable oil supply for various systems. In actual use, media such as oil directly pass through the pump cavity. Therefore, the airtightness of the oil pump itself is the key to ensuring the safe and efficient operation of the oil pump and its system.

[0003] In the existing airtightness detection process of oil pumps, it is usually manually detected. When detecting, the staff needs to first connect the inlet of the oil pump to the air pipe, then block the outlet of the oil pump, then put the oil pump into water, and finally ventilate the oil pump through the air pipe. If no bubbles appear at each position of the oil pump, it means that the airtightness of the oil pump is good. If bubbles appear, it means that the airtightness of the oil pump is not good. The existing detection device has a cumbersome manual operation process in actual operation, and the operator needs to observe the state of the oil pump in water for a long time, making the detection of the oil pump troublesome and having a low actual detection efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an airtightness detection device for an oil pump, which can automatically detect the air pump with components that block both the inlet and outlet, making the operation more convenient when detecting the oil pump and greatly improving the actual detection efficiency of the oil pump.

[0005] To achieve the above purpose, the present invention provides an airtightness detection device for an oil pump, including a processing seat and also including a detection component;

[0006] The detection component includes a rotating frame, a mounting bracket, a switching frame, a lifting frame, a sealing component, a water filling component, and a driving component;

[0007] The rotating frame is rotatably installed on the processing seat. Four mounting brackets are fixedly installed on the outside of the rotating frame. The switching frame is slidably installed on the mounting bracket. The lifting frame is slidably installed on the switching frame. The sealing component is connected to the lifting frame and is used to cover the oil pump after it is placed. The water filling component is connected to the processing seat and is used to complete the liquid introduction in the corresponding test area. The driving component is connected to the switching frame and is used to drive the switching frame and the lifting frame to move.

[0008] Among them, the sealing member includes a shelving base and a top cover. The shelving base is installed on the transposition frame by bolts; the top cover is installed on the lifting frame by bolts.

[0009] Among them, the water filling member includes a fixed connection frame, a guide hole sleeve, a water pump, and an inlet pipe frame. The fixed connection frame is fixedly installed on the processing seat; the guide hole sleeve is fixedly connected to the installation bracket and rotatably sleeved on the top of the fixed connection frame; the water pump is installed at the bottom of the processing seat; the inlet pipe frame is connected to the water pump and fixedly installed on the fixed connection frame.

[0010] Among them, the adjustment member includes a screw rod transposition drive mechanism, a screw rod lifting drive mechanism, a rotating gear ring, a rotating gear, and a rotating motor. The screw rod transposition drive mechanism is connected to the transposition frame and is used to drive the transposition frame to move on the installation bracket; the screw rod lifting drive mechanism is connected to the lifting frame and is used to drive the lifting frame to move on the transposition frame; the rotating gear ring is fixedly sleeved on the transposition frame; the rotating gear meshes with the rotating gear ring and is rotatably installed at the bottom of the processing seat; the output shaft of the rotating motor is connected to the rotating gear, and the rotating motor is fixedly installed at the bottom of the processing seat.

[0011] Among them, the water filling member further includes a discharge pipe and a water level sensor. The two sides of the discharge pipe are respectively connected to the guide hole sleeve and the lifting frame; the water level sensor is installed on the top of the lifting frame.

[0012] Among them, the detection assembly further includes a recovery water tank, a filter plate, a return pipe, a lead-out member, and a drying member. The recovery water tank is fixedly installed on one side of the processing seat; the filter plate is installed on the recovery water tank; the two sides of the return pipe are respectively connected to the recovery water tank and the water pump; the lead-out member is connected to the transposition frame and is used to lead out the filled liquid; the drying member is connected to the fixed connection frame and is used to dry the surface of the oil pump after detection.

[0013] Among them, the lead-out member includes a drainage pipe, a movable plug frame, a compression spring, and a jacking member. The drainage pipe is fixedly installed on one side of the transposition frame for installing the shelving base; the movable plug frame is slidably installed on one side of the drainage pipe; the two sides of the compression spring are respectively connected to the movable plug frame and the drainage pipe; the jacking member is connected to the recovery water tank and is used to cooperate with the movable plug frame to lead out the liquid.

[0014] Among them, the drying member includes an air outlet bracket and a hot air blower. The air outlet bracket is fixedly connected to the fixed connection frame; the hot air blower is connected to the air outlet bracket and is installed at the bottom of the processing seat.

[0015] Wherein, the lifting component includes a fixed bracket, a movable sleeve, a lifting column, a movable screw and a movable motor, the fixed bracket is fixedly installed in the recovery water tank; the movable sleeve is slidably installed on one side of the fixed bracket; the lifting column is fixedly installed in the movable sleeve; the movable screw is threadedly connected to the movable sleeve and rotatably installed on the fixed bracket; the output shaft of the movable motor is connected to the movable screw, and the movable motor is fixedly installed on the fixed bracket.

[0016] The oil pump air tightness detection device of the present invention, during actual operation, the sealing component is used to place the oil pump with the oil inlet and the oil outlet blocked, and then the automatic switching of the operating station is realized by the rotation of the transfer frame on the processing seat, and then the water-filling component is cooperated to fill the oil pump placement area to be transferred to the designated station with water, so that the oil pump can be detected whether it has the problem of insufficient sealing performance by the change of water level after filling, and the station can be switched again by the rotation of the transfer frame after the oil pump detection is completed. The four mounting brackets correspond to four stations, which are respectively a loading area, a water filling detection area, a drying area and a unloading area. The existing mechanical arm can be used to automatically load and unload the oil pump in the loading area and the unloading area, so that the entire operation does not need manual observation and recording, and realizes automatic detection of the air pump that can seal the oil inlet and the oil outlet by the provided components, so that the operation is more convenient when the oil pump is detected, and the efficiency of the actual detection of the oil pump is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 It is a schematic diagram of the overall structure of the oil pump air tightness detection device of the present invention.

[0019] Figure 2 It is a bottom view of the oil pump air tightness detection device of the present invention.

[0020] Figure 3 It is a side view of the oil pump air tightness detection device of the present invention.

[0021] Figure 4 It is a schematic diagram of the installation structure of the water pump of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the top of the fixing frame of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the installation bracket and the shelf base in section of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of a reflux pipe cut away from the present invention.

[0025] Figure 8 The present invention Figure 7 Enlarged view of point A.

[0026] Figure 9 It is a schematic structural diagram of a cutaway water recovery tank of the present invention.

[0027] Figure 10 It is a schematic structural diagram of a movable sleeve cut away from the present invention.

[0028] Figure 11 It is a schematic structural diagram of a lift frame of the present invention.

[0029] In the figure: 101-processing seat, 102-transposition frame, 103-installation bracket, 104-transposition frame, 105-lifting frame, 201-shelf base, 202-top cover, 301-fixed frame, 302-guide hole sleeve, 303-water pump, 304-inlet pipe rack, 305-export pipe, 306-water level sensor, 401-screw transposition drive mechanism, 402-screw lifting drive mechanism, 4 03- indexing gear ring, 404- rotating gear, 405- rotating motor, 501- water recovery tank, 502- filter plate, 503- reflux pipe, 601- drainage pipe, 602- movable plug rack, 603- downward pressure spring, 701- air outlet bracket, 702- hot air blower, 801- fixed bracket, 802- movable sleeve, 803- lifting column, 804- movable screw, 805- movable motor. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0032] See also Figures 1 to 11, the present invention provides an oil pump airtightness detection device: including a processing seat 101 and a detection component. The detection component includes a rotating frame 102, a mounting bracket 103, a position-changing frame 104, a lifting frame 105, a sealing component, a water-filling component, and a driving component. The sealing component includes a resting base 201 and a top sealing cover 202. The water-filling component includes a fixed frame 301, a guide hole sleeve 302, a water pump 303, and an inlet pipe frame 304. The driving component includes a screw position-changing driving mechanism 401, a screw lifting driving mechanism 402, a rotating gear ring 403, a rotating gear 404, and a rotating motor 405. The water-filling component further includes an outlet pipe 305 and a water level sensor 306. Through the foregoing solution, the problem that in the existing oil pump airtightness detection process, it is usually manually detected by workers. When detecting, the worker needs to first connect the oil inlet of the oil pump to the air pipe, then block the oil outlet of the oil pump, then put the oil pump into water, and finally ventilate the oil pump through the air pipe. If no bubbles appear at each position of the oil pump, it means that the airtightness of the oil pump is good. If bubbles appear, it means that the airtightness of the oil pump is not good. The existing detection device has a cumbersome manual operation process in the actual operation process, and the operator needs to observe the state of the oil pump in water for a long time, making the operation of detecting the oil pump troublesome and the actual detection efficiency low is solved.

[0033] Further, the rotating frame 102 is rotatably installed on the processing seat 101. Four of the mounting brackets 103 are fixedly installed on the outside of the rotating frame 102. The position-changing frame 104 is slidably installed on the mounting brackets 103. The lifting frame 105 is slidably installed on the position-changing frame 104. The sealing component is connected to the lifting frame 105 and is used to seal the oil pump after it is placed. The water-filling component is connected to the processing seat 101 and is used to complete the liquid introduction in the corresponding test area. The driving component is connected to the position-changing frame 104 and is used to drive the position-changing frame 104 and the lifting frame 105 to move.

[0034] Specifically, the rotating frame 102 is rotatably provided on the processing seat 101. The rotating frame 102 is circular. Four of the mounting brackets 103 are evenly arranged on the outer circle of the rotating frame 102. The position-changing frame 104 is slidably installed on each of the mounting brackets 103. The lifting frame 105 is slidably provided on the convex platform provided at the top of the position-changing frame 104.

[0035] During the actual operation process, place the oil pump whose inlet and outlet are both blocked by the sealing member. Then, realize the automatic switching of the operation station through the rotation of the indexing rack 102 on the processing seat 101. Furthermore, cooperate with the water filling member to fill water into the area where the oil pump to be transferred to the designated station is placed. In this way, detect whether there is a problem with the sealing performance of the oil pump by detecting the change in the water level after filling. After the detection of the oil pump is completed, the station can be switched again through the rotation of the indexing rack 102. The four mounting brackets 103 correspond to four stations, which are the loading area, the water filling and detection area, the drying area, and the unloading area. Existing robotic arms can be used for automatic loading and unloading of the oil pump in the loading area and the unloading area, so that the entire operation does not require manual observation and recording, realizing the automatic detection of the air pump whose inlet and outlet can be blocked by the provided members, making the operation more convenient and efficient when detecting the oil pump, and greatly improving the actual detection efficiency of the oil pump.

[0036] Furthermore, the resting base 201 is installed on the indexing frame 104 by bolts; the top cover 202 is installed on the lifting frame 105 by bolts.

[0037] When this embodiment is in use, an assembly table for cooperating with the resting base 201 is provided at the end of the indexing frame 104. The resting base 201 is fixedly installed at the end of the indexing frame 104 by bolts. A mating table for cooperating with the top cover 202 is also provided at the end of the lifting frame 105, so that the top cover 202 can be fixedly installed at the end of the lifting frame 105 by bolts.

[0038] An embedding groove for cooperating with the top cover 202 is provided on the resting base 201. So that after the top cover 202 moves down and cooperates with the resting base 201 driven by the lifting frame 105, the top cover 202 can form a sealed storage space with the resting base 201, and the oil pump with both the inlet and outlet blocked can be placed in the corresponding storage space.

[0039] The resting base 201 and the top cover 202 can be conveniently replaced with corresponding sizes by the user according to different types of oil pumps by using bolts. The sizes of the resting base 201 and the top cover 202 should not be too small or too large relative to the size of the placed oil pump. If it is too small, the capping of the oil pump cannot be completed normally. If it is too large, the water filling time will be too long during subsequent water filling, resulting in a reduction in the overall detection efficiency.

[0040] Further, the fixed connection frame 301 is fixedly installed on the processing base 101; the guide hole sleeve 302 is fixedly connected to the mounting bracket 103 and rotatably sleeved on the top of the fixed connection frame; the water pump 303 is installed at the bottom of the processing base 101; the inlet pipe frame 304 is connected to the water pump 303 and fixedly installed on the fixed connection frame 301.

[0041] Further, both sides of the outlet pipe 305 are respectively connected to the guide hole sleeve 302 and the lifting frame 105; the water level sensor 306 is installed on the top of the lifting frame 105.

[0042] When this embodiment is in use, the fixed connection frame 301 is cylindrical as a whole, the fixed connection frame 301 is arranged in the circular hole of the indexing frame 102, and the guide hole sleeve 302 is rotatably sleeved on the top end of the fixed connection frame 301. At the same time, the guide hole sleeve 302 is also fixedly connected to the four mounting brackets 103. The guide hole sleeve 302 is provided with corresponding through holes at positions corresponding to the four mounting brackets 103. Two corresponding through holes are opened at the top end of the fixed connection frame 301 to cooperate with two corresponding through holes among the four through holes of the guide hole sleeve 302. The two through holes opened in the fixed connection frame 301 respectively correspond to the water filling detection area and the drying area.

[0043] One side pipe orifice of the inlet pipe frame 304 is connected to the through hole corresponding to the water filling detection area of the fixed connection frame 301, and the water outlet port of the water pump 303 is connected to the other side pipe orifice of the inlet pipe frame 304, so that the water pump 303 can cooperate with the inlet pipe frame 304 to introduce water into the through hole corresponding to the water filling detection area provided in the fixed connection frame 301.

[0044] Both ends of the outlet pipe 305 are respectively connected to the port of the guide hole sleeve 302 and the mating table of the lifting frame 105 for installing the top cover 202. A channel for drainage is provided in the mating table of the lifting frame 105 for mating with the top cover 202, and a channel for liquid introduction is also provided on the top of the top cover 202. When the indexing frame 102 rotates, the through hole on the guide hole sleeve 302 corresponding to the through hole of the water filling detection area of the fixed connection frame 301 can introduce liquid through the cooperation of the water pump 303 and the inlet pipe frame 304, and then introduce water into the sealed storage space composed of the top cover 202 and the shelving base 201 through the outlet pipe 305, thereby completing the water filling of the specified storage space.

[0045] The water level sensor 306 is also provided on the mating table where the lifting frame 105 mates with the top cover 202. After the water filling liquid level height is sensed by the water level sensor 306, the water pump 303 can stop the introduction of liquid. At this time, the airtightness of the oil pump can be detected by observing the liquid level height of the water body. If the airtightness of the oil pump is insufficient, since the water filling speed is much greater than the speed at which the water body enters the oil pump, when the water body is full and the corresponding oil pump has insufficient airtightness, the water pump 303 will not be completely filled with the water body. Therefore, the water will continue to enter the oil pump, resulting in a continuous small decline in the liquid level of the water body. On the contrary, if the airtightness of the oil pump is okay, the filled water body will not show a decline in the liquid level. Thus, it can be quickly and stably determined whether there is a problem with the airtightness of the oil pump.

[0046] Further, the screw displacement driving mechanism 401 is connected to the displacement frame 104 and is used to drive the displacement frame 104 to move on the mounting bracket 103; the screw lifting driving mechanism 402 is connected to the lifting frame 105 and is used to drive the lifting frame 105 to move on the displacement frame 104; the rotating gear ring 403 is fixedly sleeved on the rotating frame 102; the rotating gear 404 meshes with the rotating gear ring 403 and is rotatably installed at the bottom of the processing seat 101; the output shaft of the rotating motor 405 is connected to the rotating gear 404, and the rotating motor 405 is fixedly installed at the bottom of the processing seat 101.

[0047] When this embodiment is in use, both the screw displacement driving mechanism 401 and the screw lifting driving mechanism 402 are composed of corresponding screws and motors for driving the screws to rotate. Threaded holes for mating with the screws inside the screw displacement driving mechanism 401 are provided on the mating plate of the displacement frame 104, and threaded holes for mating with the screws inside the screw lifting driving mechanism 402 are provided on the mating plate of the lifting frame 105. Thus, when the motors in the corresponding driving mechanisms drive the corresponding screws to rotate, the corresponding frames can be driven to move under the drive of the corresponding screws, thereby completing the driving of the displacement frame 104 and the lifting frame 105.

[0048] Through the up and down movement of the lifting frame 105, the downward covering and upward opening of the top cover 202 can be realized. When loading and unloading materials, the top cover 202 is in the upward opening state, while when conducting water filling detection and drying, the top cover 202 is in the downward covering state.

[0049] The movement of the displacement frame 104 on the mounting bracket 103 is mainly used to adjust the mating position according to the installation situation of the loading and unloading mechanism in the actual site, so as to be more flexible in use and adjustment during the actual operation process.

[0050] Preferably, the detection component provided by the present invention further includes a recovery water tank 501, a filter plate 502, a return pipe 503, a lead-out member, and a drying member. The lead-out member includes a drainage pipe 601, a movable plug frame 602, a downward pressure spring 603, and a jacking member. The drying member includes an air outlet bracket 701 and a hot air blower 702. The jacking member includes a fixed bracket 801, a movable sleeve 802, a jacking column 803, a movable screw 804, and a movable motor 805.

[0051] Further, the recovery water tank 501 is fixedly installed on one side of the processing seat 101; the filter plate 502 is installed on the recovery water tank 501; both sides of the return pipe 503 are respectively connected to the recovery water tank 501 and the water pump 303; the lead-out member is connected to the transposition frame 104 for leading out the filled liquid; the drying member is connected to the fixed connection frame 301 for drying the surface of the oil pump after the detection is completed.

[0052] Further, the air outlet bracket 701 is fixedly connected to the fixed connection frame 301; the hot air blower 702 is connected to the air outlet bracket 701 and installed at the bottom of the processing seat 101.

[0053] During the use of this embodiment, the recovery water tank 501 is arranged on the side of the processing seat 101. The position where the recovery water tank 501 is arranged is opposite to the position where the placing base 201 is arranged at the end of the transposition frame 104 in the drying area. The filter plate 502 is also arranged in the recovery water tank 501. The filter plate 502 is composed of an activated carbon filter layer for adsorbing and filtering the recovered water body.

[0054] The return pipe 503 is connected to the bottom of the recovery water tank 501 and the water inlet port of the water pump 303. Through the cooperation of the recovery water tank 501 and the provided filter plate 502, the exported water body can be treated and reused to avoid waste of water resources.

[0055] One side port of the air outlet bracket 701 is connected to the through hole corresponding to the drying area provided on the fixed connection frame 301. The other side port of the air outlet bracket 701 is connected to the air outlet port of the hot air blower 702. The hot air is led out from the air outlet bracket 701 through the hot air blower 702, and then through the through hole provided on the fixed connection frame 301 and the through hole provided in the guide hole sleeve 302 and the corresponding export pipe 305, the surface of the oil pump after the water is drained can be blown and dried, so that the surface of the oil pump will not affect the subsequent transmission quality due to excessive water stains attached during the subsequent discharging.

[0056] The corresponding switching of multiple processes is achieved by the rotation of the indexing rack 102. After the water filling detection, the indexing rack 102 will transfer the mounting bracket 103 in the water filling detection area, so that the oil pump after the detection is transferred to the drying area, and then the water is drained and subsequent drying is carried out. When waterproofing and drying are carried out, the water filling detection will be carried out at the previous station, making the entire detection process more reasonable and efficient.

[0057] Further, the drain pipe 601 is fixedly installed on one side of the indexing rack 104 for installing the shelving base 201; the movable plug rack 602 is slidably installed on one side of the drain pipe 601; both sides of the pressing spring 603 are connected to the movable plug rack 602 and the drain pipe 601 respectively; the jacking member is connected to the recovery water tank 501 and is used to cooperate with the movable plug rack 602 to drain the liquid.

[0058] Further, the fixed bracket 801 is fixedly installed in the recovery water tank 501; the movable sleeve 802 is slidably installed on one side of the fixed bracket 801; the jacking column 803 is fixedly installed in the movable sleeve 802; the movable screw 804 is threadedly connected to the movable sleeve 802 and is rotatably installed on the fixed bracket 801; the output shaft of the movable motor 805 is connected to the movable screw 804, and the movable motor 805 is fixedly installed on the fixed bracket 801.

[0059] When in use in this embodiment, each indexing rack 104 is provided with the drain pipe 601, the shelving base 201 is provided with a through hole for cooperating with the drain pipe 601, the bottom of the drain pipe 601 is provided with the movable plug rack 602, and the pressing spring 603 is arranged at the position where the movable plug rack 602 is connected to the bottom of the drain pipe 601. Under the extrusion of the pressing spring 603, the movable plug rack 602 can block the drain port arranged inside the drain pipe 601 by moving downward. When the movable plug rack 602 moves upward, since the rod below the plug head of the movable plug rack 602 is smaller than the size of the drain port arranged on the drain pipe 601, the liquid can be discharged through the drain port.

[0060] The fixed bracket 801 is arranged on the recovery water tank 501, the movable sleeve 802 is slidably arranged on the fixed bracket 801, the jacking column 803 is fixed inside the movable sleeve 802, and the movable sleeve 802 is driven by the movable screw 804 in cooperation with the movable motor 805;

[0061] When the moving motor 805 drives the moving sleeve 802 to move upward in cooperation with the moving screw 804, the moving sleeve 802 can drive the arranged lifting column 803 to cooperate with the bottom of the movable plug frame 602 corresponding to the drainage pipe 601 above. By moving the lifting column 803 upward, the movable plug frame 602 can be lifted, so as to realize the normal discharge of water. When the water is discharged, the sleeving of the drainage pipe 601 by the moving sleeve 802 can avoid the splashing of water to a certain extent during the discharge of water, thus avoiding the waste of water resources and the impact on the external processing environment.

[0062] The above disclosure is only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. An oil pump airtightness detection device, including a processing seat, characterized in that, it further includes a detection component; The detection component includes a rotation frame, a mounting bracket, a transposition frame, a lifting frame, a sealing component, a water filling component and a mobilizing component; The rotation frame is rotatably installed on the processing seat, four of the mounting brackets are fixedly installed on the outside of the rotation frame, the transposition frame is slidably installed on the mounting brackets, the lifting frame is slidably installed on the transposition frame, the sealing component is connected to the lifting frame for sealing the oil pump after placement, the water filling component is connected to the processing seat for introducing liquid into the corresponding test area, and the mobilizing component is connected to the transposition frame for driving the transposition frame and the lifting frame to move.

2. The oil pump airtightness detection device according to claim 1, characterized in that, The sealing component includes a placement base and a top sealing cover, the placement base is installed on the transposition frame by bolts; the top sealing cover is installed on the lifting frame by bolts.

3. The oil pump airtightness detection device according to claim 2, characterized in that, The water filling component includes a fixed connection frame, a guide hole sleeve, a water pump and an introduction pipe frame, the fixed connection frame is fixedly installed on the processing seat; the guide hole sleeve is fixedly connected to the mounting bracket and rotatably sleeved on the top of the fixed connection frame; the water pump is installed at the bottom of the processing seat; the introduction pipe frame is connected to the water pump and fixedly installed on the fixed connection frame.

4. The oil pump airtightness detection device according to claim 1, characterized in that, The mobilizing component includes a screw transposition driving mechanism, a screw lifting driving mechanism, a rotation gear ring, a rotating gear and a rotating motor, the screw transposition driving mechanism is connected to the transposition frame for driving the transposition frame to move on the mounting brackets; the screw lifting driving mechanism is connected to the lifting frame for driving the lifting frame to move on the transposition frame; the rotation gear ring is fixedly sleeved on the rotation frame; the rotating gear meshes with the rotation gear ring and is rotatably installed at the bottom of the processing seat; the output shaft of the rotating motor is connected to the rotating gear, and the rotating motor is fixedly installed at the bottom of the processing seat.

5. The oil pump airtightness detection device according to claim 3, characterized in that, The water filling component further includes a discharge pipe and a water level sensor, both sides of the discharge pipe are respectively connected to the guide hole sleeve and the lifting frame; the water level sensor is installed on the top of the lifting frame.

6. The oil pump airtightness detection device according to claim 3, characterized in that, The detection component further includes a recovery water tank, a filter plate, a return pipe, a lead-out component and a drying component, the recovery water tank is fixedly installed on one side of the processing seat; the filter plate is installed on the recovery water tank; both sides of the return pipe are respectively connected to the recovery water tank and the water pump; the lead-out component is connected to the transposition frame for leading out the filled liquid; the drying component is connected to the fixed connection frame for drying the surface of the oil pump after detection.

7. The oil pump airtightness detection device according to claim 6, wherein the lead-out member includes a drainage pipe, a movable plug frame, a compression spring and a jacking member. The drainage pipe is fixedly installed on one side of the transposition frame for installing the shelving base; the movable plug frame is slidably installed on one side of the drainage pipe; two sides of the compression spring are respectively connected to the movable plug frame and the drainage pipe; the jacking member is connected to the recovery water tank and is used to cooperate with the movable plug frame to lead out the liquid.

8. The oil pump airtightness detection device according to claim 6, wherein the air-drying member includes an air outlet bracket and a hot air blower. The air outlet bracket is fixedly connected to the fixed connection frame; the hot air blower is connected to the air outlet bracket and is installed at the bottom of the processing base.

9. The oil pump airtightness detection device according to claim 7, wherein the jacking member includes a fixed bracket, a movable sleeve, a jacking column, a movable screw rod and a movable motor. The fixed bracket is fixedly installed in the recovery water tank; the movable sleeve is slidably installed on one side of the fixed bracket; the jacking column is fixedly installed in the movable sleeve; the movable screw rod is threadedly connected to the movable sleeve and is rotatably installed on the fixed bracket; an output shaft of the movable motor is connected to the movable screw rod, and the movable motor is fixedly installed on the fixed bracket.

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