Liquid leakage detection device for automobile radiator

Abstract

The invention discloses a liquid leakage detection device for an automobile radiator, and relates to the technical field of automobile radiators. The device comprises a detection table and a radiator body, further, the radiator body comprises a radiating tube row arranged between two pressure detectors, and the top and the bottom of the radiating tube row are fixedly provided with a water inlet cavity plate and a water outlet cavity plate respectively. A water inlet connector and a water drainage connector are fixedly installed on one side of the water inlet cavity plate and one side of the water drainage cavity plate respectively. Leaked detection liquid is used for soaking the porous water absorption plate, pressure is applied to the miniature pressure plate under the influence of water absorption expansion and gravity action, the liquid leakage position is directly positioned, then the overturning motor drives the radiator body to rotate reversely, the other side is detected, automatic detection of the two faces of the radiator body is achieved, the position of a liquid leakage area is determined, and the detection efficiency is improved. Reference is provided for subsequent further strength detection and repair operation, and the error rejection rate of the heat dissipation body is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile radiator, and particularly relates to a liquid leakage detection device for automobile radiator. BACKGROUND

[0002] The automobile radiator is an indispensable important component of the water-cooled engine cooling system of the automobile. According to the structural form of the radiator core, the automobile radiator can be divided into a tube-sheet type radiator core, a tube-belt type radiator core and a plate type radiator core. According to the direction of the cooling liquid flow, the automobile radiator can be divided into two types of longitudinal flow type and transverse flow type. After the automobile radiator is processed, dry detection leakage work needs to be carried out, that is, compressed air is injected into the interior of the automobile radiator, the pressure change in the automobile radiator is detected according to the principle of leakage and pressure reduction and by using a pressure or differential pressure sensor, so as to judge whether the automobile radiator is qualified.

[0003] The existing automobile radiator gas leakage detection method is specifically divided into helium leakage detection and positive and negative pressure leakage detection. The helium leakage detection is to fill helium into the interior of the radiator assembly, to detect whether there are helium molecules outside, so as to judge whether the core body leaks. The positive and negative pressure leakage detection is to fill pressure or vacuum into the interior of the radiator core body, then to close the valve, and to detect the pressure in the radiator. If the pressure changes, it can be judged that there is liquid leakage. The above two gas leakage detection methods can quickly detect whether the automobile radiator has a leakage problem, but it is difficult to directly and accurately locate the leakage position, resulting in that the unqualified automobile radiator is scrapped, or the leakage position needs to be detected additionally. The former can cause the repairable automobile radiator to be mistakenly scrapped, and the latter can increase the detection process and detection time. Therefore, the present application provides a liquid leakage detection device for automobile radiator. SUMMARY

[0004] The present application aims at solving the problems that the existing automobile radiator gas leakage detection method is difficult to directly and accurately locate the leakage position, resulting in that the unqualified automobile radiator is scrapped, or the leakage position needs to be detected additionally, causing mistaken scrapping, increasing the detection process and time. The present application provides a liquid leakage detection device for automobile radiator.

[0005] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme: A liquid leakage detection device for automobile radiator, comprising a detection table and a radiator body. Further, the radiator body comprises a radiator pipe row arranged between two pressure detectors. The top and bottom of the radiator pipe row are respectively fixedly installed with a water inlet cavity plate and a water outlet cavity plate. One side of the water inlet cavity plate and the water outlet cavity plate is respectively fixedly installed with a water inlet joint and a water outlet joint. Further, the top and bottom of one of the pressure detectors are respectively fixedly installed with a water inlet pipe and a water outlet pipe, one end of the water inlet pipe and the water outlet pipe respectively faces the water inlet joint and the water outlet joint, the other end of the water inlet pipe and the water outlet pipe is respectively fixedly installed with a water inlet hose and a water outlet hose, the inside of the detection table is fixedly installed with a vertically arranged lifting push rod, the top of the detection table is provided with a clearance slot, the telescopic end of the lifting push rod penetrates through the clearance slot and is fixedly installed with a placing rack, and the water outlet cavity plate is placed on the top of the placing rack.

[0006] Further, the pressure detector is fixedly installed with a sealing rubber frame on the side facing the row of heat dissipation pipes, the capacitive touch pressure substrate and the porous water absorption plate are located inside the sealing rubber frame, the top and bottom of one side of the sealing rubber frame are respectively fixedly installed with a sealing rubber ring, the sealing rubber ring is matched with the water inlet joint and the water outlet joint, and the water inlet pipe and the water outlet pipe are respectively fixedly inserted into the inside of the two sealing rubber rings.

[0007] Further, the top of the detection table is fixedly installed with two supporting frames, the supporting frames are respectively rotatably installed with a turnover shaft, the same turnover frame is fixedly installed between the two turnover shafts, one side of one of the supporting frames is fixedly installed with a turnover motor, the output shaft of the turnover motor is drivingly connected with the same side of the turnover shaft, the top of the turnover frame is fixedly installed with two horizontally arranged bidirectional linear modules, the top of the bidirectional linear modules is drivingly installed with two symmetrically arranged bidirectional driving ends, the top of the two bidirectional driving ends located at the same end is fixedly installed with the same moving frame, one side of the two moving frames close to each other is fixedly installed with a pressure detector, the radiator body is arranged between the two pressure detectors, one side of the pressure detector close to the radiator body is fixedly installed with a capacitive touch pressure substrate, one side of the capacitive touch pressure substrate facing the radiator body is fixedly installed with a plurality of uniformly distributed micro pressure plates, one side of the capacitive touch pressure substrate facing the radiator body is provided with a porous water absorption plate, and the porous water absorption plate is used for triggering a plurality of micro pressure plates corresponding to the liquid leakage area position.

[0008] Further, the porous water absorption plate comprises a first waterproof grid net plate fixedly installed on one side of the capacitive touch pressure substrate, a plurality of uniformly distributed micro porous water absorption cotton columns are fixedly installed in the first waterproof grid net plate, the positions of the plurality of micro porous water absorption cotton columns respectively correspond to the positions of the plurality of micro pressure plates, a second waterproof grid net plate is fixedly installed on one side of the capacitive touch pressure substrate, and the plurality of micro pressure plates are located inside the second waterproof grid net plate.

[0009] Further, the inside of the first waterproof grid net plate is fixedly installed with a plurality of uniformly distributed micro waterproof elastic rubber plates, and the micro waterproof elastic rubber plates are respectively located between the first waterproof grid net plates and the micro pressure plates.

[0010] The top of the detection table is fixedly installed with an upper frame, the top of the upper frame is provided with a marking mechanism for marking the position of the liquid leakage, further, the marking mechanism comprises two horizontally arranged Y-axis linear modules fixedly installed on the top of the upper frame, the bottom of each Y-axis linear module is drivingly installed with a Y-axis driving end, the bottom of each Y-axis driving end is fixedly installed with a horizontally arranged X-axis linear module, the bottom of the X-axis linear module is drivingly installed with an X-axis driving end, the bottom of the X-axis driving end is fixedly installed with a rotating arm, the driving end of the rotating arm is fixedly installed with a lifting frame, the inside of the lifting frame is rotatably installed with a lifting lead screw, the bottom end of the lifting frame is fixedly installed with a lifting motor, the output shaft of the lifting motor is drivingly connected with the lifting lead screw, the lifting lead screw is screwed with a lifting sliding sleeve, the lifting sliding sleeve is slidingly installed in the inside of the lifting frame, one side of the lifting sliding sleeve is fixedly installed with a pigment spray head, one side of the X-axis driving end is fixedly installed with a pigment bottle, the output end of the pigment bottle is fixedly installed with a conveying hose, and the bottom end of the conveying hose is in communication with the pigment spray head.

[0011] Further, the other side of the lifting sliding sleeve is fixedly installed with an air outlet hose, one side of the X-axis driving end is fixedly installed with a drying fan, the air outlet end of the drying fan is fixedly installed with a wind conveying hose, and the bottom end of the conveying hose is in communication with the air outlet hose.

[0012] The beneficial effects of the present application are as follows: 1. The present application uses the detection liquid leakage to wet the porous water absorption plate, which exerts pressure on the micro pressure plate under the influence of water absorption expansion and gravity, directly locates the position of the liquid leakage, and then reverses the radiator body to detect the other side, realizes automatic detection of both sides of the radiator body, determines the position of the liquid leakage area, provides reference for subsequent further strength detection and repair work, and reduces the false rejection rate of the radiator body. 2. The present application sets the micro porous water absorption cotton column, so that the detection liquid leakage makes the micro porous water absorption cotton column expand and stretch, exerts pressure on the corresponding micro pressure plate, and separates the micro porous water absorption cotton column and the micro pressure plate through the first waterproof grid net plate and the second waterproof grid net plate, avoids the infiltration of the detection liquid to the surrounding, greatly reduces the expansion quantity of the micro porous water absorption cotton column, and makes the positioning of the leakage position more accurate. 3、The micro water-proof elastic rubber plate is arranged, the micro water-proof elastic rubber plate and the first water-proof grid net plate form a semi-closed micro space, each micro porous water-absorbing cotton column is wrapped in, and the micro porous water-absorbing cotton column and the micro pressure plate are separated on two sides, direct contact of the detection liquid with the micro pressure plate and the capacitive touch pressure substrate and the pressure detector on the rear side is prevented, the leaked detection liquid is intercepted, pollution and electric short circuit are avoided, and the micro porous water-absorbing cotton column is prevented. 4、The marking mechanism is arranged, when the current radiator body exists the leakage, the Y-axis linear module, the X-axis linear module and the lifting motor drive the lifting sleeve to move to the specified position, the rotating arm drives the pigment spray head to the leakage area on the radiator body, then the internal channel is opened, the marking pigment is sprayed on the leakage area, the leakage marking is realized, and the staff is convenient to check and repair. 5、The drying fan is arranged, when the pigment spray head marks the leakage area, the air outlet hose blows air to the corresponding micro porous water-absorbing cotton column, the drying and rebound of the micro porous water-absorbing cotton column are accelerated, so that subsequent detection is facilitated, and the air outlet hose can be driven to the marked leakage area by the rotating arm, so that the marking pigment and the residual detection liquid of the leakage area are quickly dried. DETAILED DESCRIPTION

[0013] Figure 1 is a three-dimensional structure schematic diagram of the present application; Figure 2 is a three-dimensional structure schematic diagram of the present application; Figure 3 is a three-dimensional structure schematic diagram of the present application; Figure 4 is a three-dimensional structure schematic diagram of the present application; Figure 5 is a three-dimensional structure schematic diagram of the present application; Figure 4 is a three-dimensional structure schematic diagram of the present application; Figure 6 is a three-dimensional structure schematic diagram of the present application; Figure 7 is a three-dimensional structure schematic diagram of the present application; Figure 8 is a three-dimensional structure schematic diagram of the present application; Figure 7 is a three-dimensional structure schematic diagram of the present application; Figure 9 is a three-dimensional structure schematic diagram of the present application; Figure 10 is a three-dimensional structure schematic diagram of the present application; Mark No. : 1, detection table; 101, let go of the slot; 2, support frame; 3, turnover shaft; 4, turnover frame; 5, turnover motor; 6, bidirectional linear module; 7, bidirectional drive end; 8, moving frame; 9, pressure detector; 10, capacitive touch pressure substrate; 11, miniature pressure plate; 12, porous water absorption plate; 1201, first waterproof grid net plate; 1202, miniature porous water absorption cotton column; 1203, miniature waterproof elastic rubber plate; 13, second waterproof grid net plate; 14, water inlet cannula; 15, water inlet hose; 16, drainage cannula; 17, drainage hose; 18, heat dissipation pipe row; 19, water inlet cavity plate; 20, water inlet joint; 21, drainage cavity plate; 22, drainage joint; 23, sealing rubber frame; 24, sealing rubber ring; 25, lifting push rod; 26, placing frame; 27, Y-axis linear module; 28, Y-axis drive end; 29, X-axis linear module; 30, X-axis drive end; 31, rotating arm; 32, lifting frame; 33, lifting screw; 34, lifting motor; 35, lifting sliding sleeve; 36, pigment bottle; 37, material conveying hose; 38, pigment spray head; 39, drying fan; 40, air outlet hose; 41, air conveying hose; 42, upper frame. DETAILED DESCRIPTION

[0014] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0016] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0018] like Figures 1 to 10 As shown, a leakage detection device for automobile radiator includes a detection platform 1 and a radiator body, as shown in FIG. Figure 2 As shown, the radiator body includes a heat dissipation pipe row 18 disposed between the two pressure detectors 9. A water inlet cavity plate 19 and a water outlet cavity plate 21 are fixedly mounted on the top and bottom of the heat dissipation pipe row 18, respectively. A water inlet joint 20 and a water outlet joint 22 are fixedly mounted on one side of the water inlet cavity plate 19 and the water outlet cavity plate 21, respectively. like Figure 2 、 Figure 3 As shown, specifically, a water inlet cannula 14 and a drain cannula 16 are fixedly installed on the top and bottom of one of the pressure detectors 9, one end of the water inlet cannula 14 and the drain cannula 16 are respectively directed towards the water inlet joint 20 and the drain joint 22, and the other end of the water inlet cannula 14 and the drain cannula 16 are respectively fixedly installed with a water inlet hose 15 and a drain hose 17. A vertical lifting push rod 25 is fixedly installed inside the detection platform 1, as shown in FIG. Figure 1 As shown, a clearance groove 101 is opened on the top of the testing platform 1, the telescopic end of the lifting push rod 25 passes through the clearance groove 101 and is fixedly installed with a placement rack 26, and the drainage cavity plate 21 is placed on the top of the placement rack 26.

[0019] In this embodiment, one end of the water inlet hose 15 and the drain hose 17 are connected to the water source and the water inlet and outlet ends of the circulation pump unit respectively. The water inlet pipe 14 and the drain pipe 16 are both provided with solenoid valves for controlling opening and closing. The placement rack 26 is equipped with claws and support plates that are compatible with the drainage cavity plate 21, which are used to limit the drainage cavity plate 21 and the heat dissipation pipe row 18.

[0020] More specifically, when the leakage detection device for automobile radiators is in use, the lifting push rod 25 inside the test platform 1 drives the placement rack 26 to pass through the make way slot 101 and move to the top of the test platform 1, and then the heat dissipation pipe row 18 welded with the water inlet cavity plate 19, water inlet joint 20, drainage cavity plate 21, and drainage joint 22 is placed on the placement rack 26 by manual or robotic arm or other transporting mechanisms. The placement rack 26 performs preliminary positioning of the radiator body so that the radiator body can stand alone on the top of the placement rack 26. At this time, the radiator body can be loosened by manual or transporting mechanisms.

[0021] likeFigure 4 、 Figure 5 As shown in the figure, specifically, the pressure detector 9 is fixedly installed on one side of the heat dissipation pipe row 18 with a sealing rubber frame 23, and the capacitive touch pressure substrate 10 and the porous water absorption plate 12 are both located inside the sealing rubber frame 23. The top and bottom of the sealing rubber frame 23 on one side are both fixedly installed with a sealing rubber ring 24, which is matched with the water inlet connector 20 and the water outlet connector 22. The water inlet pipe 14 and the water outlet pipe 16 are respectively fixedly inserted into the two sealing rubber rings 24.

[0022] More specifically, by setting the sealing rubber frame 23 and the sealing rubber ring 24, when the two porous water absorption plates 12 contact the two sides of the heat dissipation body, the vertical edges of the two sealing rubber frames 23 will contact each other, and the horizontal edges will be in close contact with the two sides of the water inlet cavity plate 19 and the water outlet cavity plate 21, respectively. Thus, the sealing effect is achieved on the contact surface between the heat dissipation body and the porous water absorption plate 12. The two sealing rubber rings 24 can seal the insertion parts of the water inlet pipe 14 and the water inlet connector 20, and the water outlet pipe 16 and the water outlet connector 22, preventing the detection liquid from leaking to the outside and reducing the risk of pollution and electric shock.

[0023] As shown in the figure, Figure 1 、 Figure 3 The top of the detection table 1 is fixedly installed with two supporting frames 2. Specifically, the supporting frame 2 is rotatably installed with a turnover shaft 3. The same turnover shaft 3 is fixedly installed between the two turnover shafts 3. One side of one of the supporting frames 2 is fixedly installed with a turnover motor 5. The output shaft of the turnover motor 5 is drivingly connected with the same side of the turnover shaft 3. The top of the turnover frame 4 is fixedly installed with two horizontally arranged bidirectional linear modules 6. The top of the bidirectional linear module 6 is drivingly installed with two symmetrically arranged bidirectional drive ends 7. The top of the two bidirectional drive ends 7 located at the same end is fixedly installed with the same moving frame 8. One side of the two moving frames 8 close to each other is fixedly installed with a pressure detector 9. The heat dissipation body is arranged between the two pressure detectors 9. Figure 5 、 Figure 7 As shown in the figure, the pressure detector 9 is fixedly installed on one side close to the heat dissipation body with a capacitive touch pressure substrate 10. The capacitive touch pressure substrate 10 is fixedly installed on one side close to the heat dissipation body with a plurality of uniformly distributed micro pressure plates 11. The capacitive touch pressure substrate 10 is provided on one side close to the heat dissipation body with a porous water absorption plate 12, which is used to trigger the plurality of micro pressure plates 11 corresponding to the liquid leakage area position.

[0024] In the present embodiment, the bidirectional linear module 6, the Y-axis linear module 27 and the X-axis linear module 29 can be the linear actuator commonly seen in the prior art, such as a linear motor module, which drives the mover as the driving end to move linearly through the electromagnetic force of the motor stator, or adopts a screw thread sleeve, a belt and a belt pulley, a chain and a chain wheel mechanism, etc., which drives the bidirectional driving end 7, the Y-axis driving end 28 and the X-axis driving end 30 as the driving end to move linearly through the thread guiding action or meshing action. In addition to electric energy, a cylinder, a hydraulic rod or the like can also be used as a power source. The linear module in the present embodiment can adopt the technical solutions including but not limited to the above, and the actual situation is adapted as appropriate.

[0025] More specifically, by setting the porous water absorption plate 12, the driving ends at both ends of the bidirectional linear module 6 drive the two pressure detectors 9 to move towards the radiator body through the moving frame 8 until the water inlet pipe 14 and the water outlet pipe 16 on both sides of one of the pressure detectors 9 are preliminarily inserted into the water inlet joint 20 and the water outlet joint 22 of the radiator body, respectively, and the radiator body can be temporarily hung. At this time, the lifting push rod 25 drives the placing frame 26 to descend and disengage from the water outlet cavity plate 21, and then the two pressure detectors 9 continue to move to clamp the radiator body until the two porous water absorption plates 12 completely contact the radiator body, completely cover the connection between the heat pipe row 18 and the water inlet cavity plate 19 and the water outlet cavity plate 21, and the water inlet pipe 14 and the water outlet pipe 16 are completely inserted into the water inlet joint 20 and the water outlet joint 22, respectively, and the detection liquid is transported into the water inlet cavity plate 19 and the heat pipe row 18 and the water outlet cavity plate 21 through the water inlet pipe 14 and the water inlet joint 20. At this time, the control valve on the water outlet pipe 16 is closed, and when the transportation amount reaches the specified flow value, the control valve on the water inlet pipe 14 is closed. Then the overturning motor 5 drives the overturning shaft 3 to overturn the overturning frame 4, so that the pressure detector 9 and the radiator body are both turned to horizontal. If the radiator body has a liquid leakage problem, the leaked detection liquid will soak the porous water absorption plate 12, and the water absorption plate 12 will be soaked and wetted under the action of water absorption expansion and gravity, thereby exerting pressure on the plurality of micro pressure plates 11 at the corresponding position on the bottom, so as to convert the pressure signal of the pressure detector 9 into an electric signal, and then directly locate the position of the liquid leakage. Then the overturning motor 5 drives the radiator body to reset and reverse to the horizontal position to detect the other side of the radiator body, thereby realizing automatic detection of both sides of the radiator body and determining the position of the liquid leakage area, providing a reference for subsequent further strength detection and repair work, reducing the false rejection rate of the radiator body, and after the detection is completed, the detection liquid in the radiator body is pumped out through the water outlet hose 17 and the water outlet pipe 16, and the clamping operation is performed in reverse, the pressure detectors 9 on both sides are loosened, the lifting push rod 25 on the bottom drives the placing frame 26 to re-support and limit the radiator body, and finally the radiator body is removed to complete the liquid leakage detection.

[0026] As Figure 5 , Figure 6 shown, the porous water absorption plate 12 includes a first waterproof grid net plate 1201 fixedly installed on one side of the capacitive touch pressure substrate 10. Specifically, a plurality of uniformly distributed micro porous water absorption cotton columns 1202 are fixedly installed inside the first waterproof grid net plate 1201. The positions of the plurality of micro porous water absorption cotton columns 1202 respectively correspond to the positions of the plurality of micro pressure plates 11. The capacitive touch pressure substrate 10 has a second waterproof grid net plate 13 fixedly installed on the side facing the heat pipe row 18. The plurality of micro pressure plates 11 are located inside the second waterproof grid net plate 13.

[0027] In this embodiment, as Figure 6 shown, one end of the micro porous water absorption cotton column 1202 facing the outside of the first waterproof grid net plate 1201 is fixedly connected to the inner wall of the first waterproof grid net plate 1201 by means of gluing or the like. The other end is in a square conical structure and does not contact the inner wall of the first waterproof grid net plate 1201. The micro porous water absorption cotton column 1202 is made of a porous material with a large pore size, has high water absorption and swelling properties, and can rebound after water loss.

[0028] More specifically, by arranging the micro porous water absorption cotton column 1202, when the detection liquid that leaks contacts the corresponding micro porous water absorption cotton column 1202, it will be absorbed by the micro porous water absorption cotton column 1202, and then the micro porous water absorption cotton column 1202 will swell and stretch towards the position of the capacitive touch pressure substrate 10, and then exert pressure on the corresponding micro pressure plate 11. At the same time, the first waterproof grid net plate 1201 and the second waterproof grid net plate 13 respectively separate the plurality of micro porous water absorption cotton columns 1202 and the micro pressure plates 11 in the micro grid, avoiding the infiltration of the detection liquid to the surrounding, and greatly reducing the swelling amount of the micro porous water absorption cotton column 1202, so that the positioning of the leakage position is more accurate.

[0029] As Figure 6 shown, specifically, a plurality of uniformly distributed micro waterproof elastic rubber plates 1203 are fixedly installed inside the first waterproof grid net plate 1201. The plurality of micro waterproof elastic rubber plates 1203 are respectively located between the plurality of first waterproof grid net plates 1201 and the plurality of micro pressure plates 11.

[0030] More specifically, by setting the micro water-resistant elastic rubber plate 1203, the micro water-resistant elastic rubber plate 1203 and the first water-resistant grid plate 1201 form a semi-closed micro space, which wraps the micro porous water-absorbing cotton column 1202, and separates the micro porous water-absorbing cotton column 1202 and the micro pressure plate 11 on both sides, preventing the detection liquid from directly contacting the micro pressure plate 11 and the capacitive touch pressure substrate 10 and the pressure detector 9 on the back side, intercepting the leaked detection liquid, and avoiding pollution and electric short circuit.

[0031] As shown in Figure 1 The top of the detection table 1 is fixedly installed with an upper frame 42, and the top of the upper frame 42 is provided with a marking mechanism for marking the position of the leaked liquid. Specifically, the marking mechanism includes two horizontally arranged Y-axis linear modules 27 fixedly installed on the top of the upper frame 42. Figure 9 As shown in Figure 9 The bottom of each Y-axis linear module 27 is drivingly installed with a Y-axis driving end 28, and the bottom of each two Y-axis driving ends 28 is fixedly installed with a horizontally arranged X-axis linear module 29. The bottom of the X-axis linear module 29 is drivingly installed with an X-axis driving end 30, and the bottom of the X-axis driving end 30 is fixedly installed with a rotating arm 31. The driving end of the rotating arm 31 is fixedly installed with a lifting frame 32, and the inside of the lifting frame 32 is rotatably installed with a lifting lead screw 33. The bottom end of the lifting frame 32 is fixedly installed with a lifting motor 34, and the output shaft of the lifting motor 34 is drivingly connected with the lifting lead screw 33. The lifting lead screw 33 is screwed with a lifting sliding sleeve 35, and the lifting sliding sleeve 35 is slidingly installed in the inside of the lifting frame 32. One side of the lifting sliding sleeve 35 is fixedly installed with a pigment spray head 38, and one side of the X-axis driving end 30 is fixedly installed with a pigment bottle 36. The output end of the pigment bottle 36 is fixedly installed with a material conveying hose 37, and the bottom end of the material conveying hose 37 is in communication with the pigment spray head 38.

[0032] In this embodiment, the lifting lead screw 33, the lifting motor 34 and the lifting sliding sleeve 35 constitute a lead screw lifting mechanism. A folding dustproof mesh cloth connected with the lifting sliding sleeve 35 can be provided on both sides of the lifting frame 32 to protect the lifting frame 32, or the lead screw lifting mechanism can be replaced with a lifting transmission mechanism such as a linear module or a belt and a belt pulley, a chain and a chain wheel.

[0033] More specifically, by setting the marking mechanism, when it is detected that the current radiator body has liquid leakage, the radiator body is supported on the placing rack 26, the lifting frame 32 is driven to move between the radiator body and the porous water absorption plate 12 by the Y-axis linear module 27 and the X-axis linear module 29 from the upper side, then the lifting motor 34 and the lifting lead screw 33 cooperate to drive the lifting sliding sleeve 35 to move to the specified height, the rotating arm 31 drives the lifting frame 32 to rotate as a whole, the pigment spray head 38 is directed to the liquid leakage area on the radiator body, then the internal channel is opened, and the marking pigment is sprayed on the liquid leakage area to realize liquid leakage marking, which is convenient for the staff to check and repair.

[0034] As shown in Figure 10 , specifically, the other side of the lifting sliding sleeve 35 is fixedly installed with an air outlet hose 40, one side of the X-axis drive end 30 is fixedly installed with a drying fan 39, and the air outlet end of the drying fan 39 is fixedly installed with a wind conveying hose 41. The bottom end of the material conveying hose 37 is in communication with the air outlet hose 40.

[0035] More specifically, by setting the drying fan 39, when the pigment spray head 38 marks the liquid leakage area, the air outlet hose 40 will be directed to the micro porous water absorption cotton column 1202 immersed in the detection liquid, then the drying fan 39 blows air to the corresponding micro porous water absorption cotton column 1202 through the wind conveying hose 41 and the capacitive touch pressure substrate 10, accelerates the drying and rebound of the micro porous water absorption cotton column 1202 at that place, so as to facilitate subsequent detection, and at the same time, the rotating arm 31 can drive the air outlet hose 40 to rotate to the marked liquid leakage area, so that the marking pigment and the residual detection liquid in the liquid leakage area are quickly dried.

[0036] In summary: before detection: the lifting push rod 25 in the detection table 1 drives the placing rack 26 to pass through the accommodation slot 101 and move to the top of the detection table 1, and then the carrying mechanism such as artificial or mechanical arm places the radiator pipe row 18 which has been welded with the water inlet cavity plate 19, the water inlet connector 20, the drainage cavity plate 21 and the drainage connector 22 on the placing rack 26, and the placing rack 26 preliminarily limits the radiator body, so that the radiator body can stand alone on the top of the placing rack 26; When detecting: the driving ends of the bidirectional linear module 6 at both ends drive the two pressure detectors 9 to move towards the radiator body through the moving frame 8 until the water inlet pipe 14 and the water outlet pipe 16 on the upper and lower sides of one of the pressure detectors 9 are preliminarily inserted into the water inlet joint 20 and the water outlet joint 22 on the upper and lower sides of the radiator body, respectively, and the radiator body can be temporarily hung, at this time, the lifting push rod 25 drives the placing frame 26 to descend and be separated from the water outlet cavity plate 21, then the two pressure detectors 9 continue to move to clamp the radiator body until the porous water absorption plates 12 on both sides are completely in contact with the radiator body, the connection between the heat pipe row 18 and the water inlet cavity plate 19 and the water outlet cavity plate 21 is completely covered, and the water inlet pipe 14 and the water outlet pipe 16 are completely inserted into the water inlet joint 20 and the water outlet joint 22, respectively, and the detection liquid is transported into the water inlet cavity plate 19 and the heat pipe row 18 and the water outlet cavity plate 21 through the water inlet pipe 14 and the water inlet joint 20, at this time, the control valve on the water outlet pipe 16 is closed, when the transportation amount reaches the specified flow value, the control valve on the water inlet pipe 14 is closed, then the overturning motor 5 drives the overturning shaft 3 to drive the overturning frame 4 to overturn, so that the pressure detector 9 and the radiator body are both turned to be horizontal, if the radiator body has a liquid leakage problem, the leaked detection liquid will wet the porous water absorption plate 12, and the wetted part of the porous water absorption plate 12 will exert pressure on the plurality of micro pressure plates 11 at the corresponding position on the bottom under the influence of water absorption expansion and gravity, so that the pressure signal of the pressure detector 9 is converted into an electric signal, and then the position of the liquid leakage is directly located, then the overturning motor 5 drives the radiator body to reset and reverse to be horizontal to detect the other side of the radiator body; After detection: after the detection is completed, the detection liquid in the radiator body is pumped out, the clamping operation described above is performed in reverse, the pressure detectors 9 on both sides are controlled to release the radiator body, the lifting push rod 25 on the bottom drives the placing frame 26 to support and limit the radiator body again, when the liquid leakage is detected, the Y-axis linear module 27 and the X-axis linear module 29 on the top drive the lifting frame 32 to move between the radiator body and the porous water absorption plate 12, then the lifting motor 34 and the lifting lead screw 33 cooperate to drive the lifting sliding sleeve 35 to move to a specified height, the rotating arm 31 drives the lifting frame 32 to rotate as a whole, so that the pigment spray head 38 faces the liquid leakage area on the radiator body, then the internal channel of the pigment spray head 38 is opened, the marking pigment is sprayed on the liquid leakage area to realize the liquid leakage marking, and finally the radiator body is taken down to complete the liquid leakage detection.

[0037] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only the principles of the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A leakage detection device for automobile radiator, characterized in that: The invention comprises a detection platform (1) and a radiator body, wherein two supporting brackets (2) are fixedly installed on the top of the detection platform (1), and a flip shaft (3) is rotatably installed on each of the supporting brackets (2), and a same flip frame (4) is fixedly installed between the two flip shafts (3), and a flip motor (5) is fixedly installed on one side of one of the supporting brackets (2), and the output shaft of the flip motor (5) is drive-connected with the flip shaft (3) on the same side, and two horizontally arranged bidirectional linear modules (6) are fixedly installed on the top of the bidirectional linear module (6), and two symmetrically arranged bidirectional driving ends (7) are drive-installed on the top of the two bidirectional driving ends (7) at the same end, and a same moving frame (8) is fixedly installed on the top of the two bidirectional driving ends (7) at the same end, and the two moving frames (8) are close to each other. A pressure detector (9) is fixedly installed on one side of each of the two radiators, the radiator body is arranged between the two pressure detectors (9), a capacitive touch pressure substrate (10) is fixedly installed on the side of the pressure detector (9) close to the radiator body, a plurality of evenly distributed micro pressure plates (11) are fixedly installed on the side of the capacitive touch pressure substrate (10) facing the radiator body, a porous water absorption plate (12) is provided on the side of the capacitive touch pressure substrate (10) facing the radiator body, the porous water absorption plate (12) is used to trigger the plurality of micro pressure plates (11) corresponding to the position of the leakage area, an upper frame (42) is fixedly installed on the top of the detection platform (1), and a marking mechanism for marking the leakage position is provided on the top of the upper frame (42).

2. A liquid leakage detection device for automobile radiator according to claim 1, characterized in that: The radiator body comprises a heat dissipation pipe row (18) arranged between the two pressure detectors (9), the top and bottom of the heat dissipation pipe row (18) are respectively fixedly mounted with a water inlet cavity plate (19) and a water outlet cavity plate (21), and one side of the water inlet cavity plate (19) and the water outlet cavity plate (21) are respectively fixedly mounted with a water inlet joint (20) and a water outlet joint (22), the top and bottom of one of the pressure detectors (9) are respectively fixedly mounted with a water inlet cannula (14) and a water outlet cannula (16), one end of the water inlet cannula (14) and the water outlet cannula (16) are respectively directed towards the water inlet joint (20) and the water outlet joint (22), and the other end of the water inlet cannula (14) and the water outlet cannula (16) are respectively fixedly mounted with a water inlet hose (15) and a water outlet hose (17); The porous water-absorbing plate (12) comprises a first water-proof grid plate (1201) fixedly mounted on one side of the capacitive touch-pressure substrate (10); a plurality of uniformly distributed micro porous water-absorbing sponge columns (1202) are fixedly mounted inside the first water-proof grid plate (1201); the positions of the plurality of micro porous water-absorbing sponge columns (1202) respectively correspond to the positions of the plurality of micro pressure plates (11); a second water-proof grid plate (13) is fixedly mounted on the side of the capacitive touch-pressure substrate (10) facing the heat dissipation pipe row (18); the plurality of micro pressure plates (11) are all located inside the second water-proof grid plate (13).

3. The liquid leakage detection device for automobile radiator according to claim 2, characterized in that: A plurality of uniformly distributed micro water-isolating elastic rubber plates (1203) are fixedly installed inside the first water-isolating grid plate (1201), and the plurality of micro water-isolating elastic rubber plates (1203) are respectively located between the plurality of first water-isolating grid plates (1201) and the plurality of micro pressure plates (11).

4. The liquid leakage detection device for automobile radiator according to claim 2, characterized in that: A vertically arranged lifting push rod (25) is fixedly installed inside the detection platform (1), and a clearance groove (101) is opened on the top of the detection platform (1). The telescopic end of the lifting push rod (25) passes through the clearance groove (101) and is fixedly installed with a placement rack (26), and the drainage cavity plate (21) is placed on the top of the placement rack (26).

5. The liquid leakage detection device for automobile radiator according to claim 2, characterized in that: A sealing frame (23) is fixedly mounted on the side of the pressure detector (9) facing the heat dissipation pipe row (18), and the capacitive touch-pressure substrate (10) and the porous water-absorbing plate (12) are both located inside the sealing frame (23).

6. The leakage detection device for automobile radiator according to claim 5, characterized in that: A sealing rubber ring (24) is fixedly mounted on the top and bottom of the sealing rubber frame (23) on one side. The sealing rubber ring (24) is adapted to the water inlet joint (20) and the drainage joint (22). The water inlet insert (14) and the drainage insert (16) are fixedly inserted into the interior of the two sealing rubber rings (24), respectively.

7. The liquid leakage detection device for automobile radiator according to claim 1, characterized in that: The marking mechanism comprises two horizontally arranged Y-axis linear modules (27) fixedly mounted on the top of the upper frame (42), the bottoms of the Y-axis linear modules (27) are driven and mounted with Y-axis drive ends (28), the bottoms of each of the two Y-axis drive ends (28) are fixedly mounted with the same horizontally arranged X-axis linear module (29), the bottoms of the X-axis linear modules (29) are driven and mounted with X-axis drive ends (30), the bottoms of the X-axis drive ends (30) are fixedly mounted with a rotating arm (31), the driving end of the rotating arm (31) is fixedly mounted with a lifting frame (32), and the interior of the lifting frame (32) is rotatably mounted with a lifting screw (33) ), a lifting motor (34) is fixedly installed at the bottom end of the lifting frame (32), the output shaft of the lifting motor (34) is drive-connected to the lifting screw (33), a lifting sleeve (35) is screwed on the lifting screw (33), and the lifting sleeve (35) is slidably installed inside the lifting frame (32), a paint nozzle (38) is fixedly installed on one side of the lifting sleeve (35), a paint bottle (36) is fixedly installed on one side of the X-axis driving end (30), a feed hose (37) is fixedly installed on the output end of the paint bottle (36), and the bottom end of the feed hose (37) is connected to the paint nozzle (38).

8. The leakage detection device for automobile radiator according to claim 7, characterized in that: An air outlet hose (40) is fixedly mounted on the other side of the lifting sleeve (35), a drying fan (39) is fixedly mounted on one side of the X-axis driving end (30), an air delivery hose (41) is fixedly mounted on the air outlet end of the drying fan (39), and the bottom end of the delivery hose (37) is connected to the air outlet hose (40).

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