CN114894390A - Online sealing performance testing equipment of electric automobile high-pressure distributor - Google Patents

Abstract

The invention discloses online sealing test equipment for an electric automobile high-voltage distributor, which relates to the technical field of sealing test of automobile high-voltage distributors and comprises a material conveying mechanism, wherein a lifting mechanism is installed at the moving end of the material conveying mechanism, an object placing mechanism is fixed at the top end of the lifting mechanism, a spraying assembly is arranged above one end of the material conveying mechanism, an airtight detection mechanism is arranged above one end, far away from the spraying assembly, of the material conveying mechanism, the airtight detection mechanism comprises a fixed frame, an airtight detection assembly and three plugging assemblies, the airtight detection assembly and the plugging assemblies are installed on the inner side of the fixed frame, and an air cylinder is fixed between one side of the airtight detection assembly and one side of the plugging assemblies and the inner side wall of the fixed frame. The invention can effectively adjust the positions of the air inlet pipe head and the blocking head and match with the interface of the high-pressure distributor, improves the convenience and accuracy of the connection work of the air inlet pipe head and the blocking head with the high-pressure distributor, and increases the air tightness detection efficiency.

Description

Online sealing performance testing equipment of electric automobile high-pressure distributor

Technical Field

The invention relates to the technical field of sealing tests of automobile high-pressure distributors, in particular to online sealing test equipment for an electric automobile high-pressure distributor.

Background

The new energy electric vehicle high-voltage distributor is a high-voltage large-current distribution unit PDU of all pure electric vehicles and plug-in hybrid electric vehicles. Adopt centralized distribution scheme, structural design is compact, and the wiring overall arrangement is convenient, overhauls convenient and fast. According to the system architecture requirements of different customers, the high-voltage distribution box is also integrated with a part of intelligent control management units of the battery management system, so that the complexity of the whole vehicle system architecture power distribution is further simplified. The safety, reliability and durability of the automobile can not meet the requirements of the automobile.

The traditional Chinese patent with the publication number of CN111896181A discloses an online sealing test device for a high-voltage distributor of an electric vehicle, which comprises a transmission line and a carrier on the transmission line, wherein a jacking positioning module is further arranged on the transmission line, a plurality of test modules are arranged on the periphery of the jacking positioning module, each test module comprises a driving assembly and a profiling joint, a profiling nozzle is arranged on each profiling joint, each profiling nozzle comprises an air inlet joint, a transition surface is arranged on one side of each air inlet joint, which is far away from a product, a sealing ring is further arranged on the periphery of each air inlet joint, each sealing ring is abutted against the high-voltage distributor, and each profiling nozzle is connected with a pressure test device; the profiling connector is connected with a pressure testing device to test the internal pressure of the high-pressure distributor, the profiling nozzle enables the testing module to be more tightly connected with the interface of the high-pressure distributor, so that leakage data inside the high-pressure distributor are obtained, the jacking positioning module enables the carrier to return to a transmission line after detection is completed, the high-pressure distributor is detected one by one through online detection, and potential safety hazards of products are avoided.

Above-mentioned device has some problems in the use, for example, drive the profiling through drive assembly and connect and high pressure distributor interface connection, and the profiling connects and can not effectively adjust to high pressure distributor interface matching position in the connection process, causes the profiling to connect and is connected comparatively inconveniently with high pressure distributor, influences airtight detection effect.

Disclosure of Invention

The invention aims to provide online sealing test equipment for a high-voltage distributor of an electric automobile, which aims to solve the technical problem that in the prior art, a profiling joint cannot be effectively adjusted to a matching position of a high-voltage distributor interface, so that the profiling joint and the high-voltage distributor are inconvenient to connect.

The invention provides online sealing test equipment of an electric automobile high-voltage distributor, which comprises a material conveying mechanism, wherein a lifting mechanism is installed at the moving end of the material conveying mechanism, an object placing mechanism is fixed at the top end of the lifting mechanism, a spraying assembly is arranged above one end of the material conveying mechanism, an airtight detection mechanism is arranged above one end, far away from the spraying assembly, of the material conveying mechanism, the airtight detection mechanism comprises a fixed frame, an airtight detection assembly and three plugging assemblies, the airtight detection assembly and the three plugging assemblies are installed on the inner side of the fixed frame, and an air cylinder is fixed between one side of the airtight detection assembly and the plugging assemblies and the inner side wall of the fixed frame;

the air tightness detection assembly comprises an air inlet pipe head, the plugging assembly comprises a plugging head, one side of the air inlet pipe head and one side of the plugging head are both connected with a positioning mechanism, the positioning mechanism is fixedly connected with the end of an extension rod of the air cylinder, an air inlet of the air inlet pipe head is communicated with an air blowing assembly, a plurality of sealing convex rings are fixed on the conical outer wall of the air inlet pipe head, and a plurality of annularly distributed water drop grooves are formed in the circumferential outer wall of each sealing convex ring;

the positioning mechanism comprises a transverse displacement assembly fixedly connected with the air cylinder, a vertical displacement assembly is installed at the moving end of the transverse displacement assembly, a moving seat is arranged on one side of the moving end of the vertical displacement assembly, and a buffering protection assembly is installed between the inner side of the moving seat and the moving end of the vertical displacement assembly.

Further, the lateral displacement subassembly include with cylinder fixed connection's slurcam, sliding sleeve is equipped with the sliding sleeve on the slurcam, the interior side slot has been seted up to slurcam one side, install electric putter in the interior side slot, electric putter's extension rod end with the one end fixed connection of sliding sleeve, vertical displacement unit mount is in on the sliding sleeve lateral wall.

Further, the vertical displacement assembly comprises a slide rail, a lead screw is rotatably mounted in the slide rail, a moving block slidably connected with the slide rail is sleeved on the lead screw in a threaded manner, a rotating handle is fixed at the top end of the lead screw, and the buffering protection assembly is mounted between the side wall of the moving block and the inner side wall of the moving seat.

Furthermore, the buffering protection assembly comprises a plurality of damping rods fixedly connected with the inner side wall of the moving seat, an extending block fixedly connected with the side wall of the moving block is sleeved on each damping rod, a spring is sleeved at one end, close to the moving seat, of each damping rod, and a guide supporting assembly is connected between the side wall of the moving block and the inner wall of the moving seat.

Furthermore, the guide support component comprises a guide groove plate fixedly connected with the inner side wall of the movable seat, a guide block is connected in the guide groove plate in a sliding mode, and an inclined rod is rotatably connected between one side of the guide block and the side wall of the movable block.

Further, the air-blowing assembly is including installing air pump on the sliding sleeve, the end of giving vent to anger of air pump is fixed with the air duct, the air duct is kept away from the one end of air pump with fixed intercommunication has the hose between the air inlet pipe head, the air duct is close to the one end of hose is fixed with the barometer, the air duct is close to the one end of air pump is fixed with the solenoid valve.

Further, the spray assembly includes two L pipes, one side of L pipe is fixed with a plurality of shower nozzles, the feed liquor end of L pipe is external to have fertile soap water infusion mechanism, L pipe below is provided with the collection liquid box, fixed frame's top is fixed with the balladeur train, slidable mounting has the brush strip on the balladeur train, brush strip one side is connected with reciprocal telescopic link, be equipped with the cavity in the brush strip, the brush strip bottom is fixed with a plurality of sponge strips that communicate with the cavity, there is the installation on the top of brush strip through hose connection the circulating pump at balladeur train top, the feed liquor end of circulating pump with fixed intercommunication has the back flow between the collection liquid box.

Furthermore, defeated material mechanism includes two guide rails, the inboard sliding connection of guide rail has the drive block, and one of them the screw rod is installed to the guide rail internal rotation, the screw rod screw thread is pegged graft in the drive block, the one end of screw rod is fixed with driving motor, two the drive block with lifting mechanism bottom fixed connection.

Further, lifting mechanism includes the bottom plate, the bottom plate lateral wall be fixed with drive block fixed connection's connecting block, the cover is equipped with the curb plate on the connecting block, seted up on the curb plate with the connecting block forms sliding fit's lift groove, the top of curb plate with put thing mechanism bottom fixed connection, the bottom plate bottom with it is fixed with the lifter to put between the thing mechanism bottom.

Further, put the thing mechanism include with lifter top end fixed connection put the thing board, put and seted up two spouts, two on the thing board install the first grip block and the second grip block of two symmetries respectively in the spout, be located to be fixed with the connecting strip between the first grip block and the second grip block bottom of homonymy, two threaded connection has two-way drive assembly between the first grip block, two-way drive assembly includes servo motor, servo motor's output shaft is fixed with to rotate and installs two-way screw rod in the spout, two first grip block thread bush is established two-way screw rod's both ends.

Compared with the prior art, the invention has the beneficial effects that:

the invention can convey a high-pressure distributor to be detected placed on a placement mechanism through a material conveying mechanism, the surface of the high-pressure distributor is sprayed with soapy water by using a spraying assembly during conveying, when the high-pressure distributor moves to the position below a fixed frame, a lifting mechanism drives the high-pressure distributor to move upwards until the high-pressure distributor moves to a position between an air tightness detection assembly and a plugging assembly, the positions of a plugging head and an air inlet pipe head are adjusted through a transverse displacement assembly and a vertical displacement assembly, so that the plugging head and the air inlet pipe head on a moving seat are aligned with holes on the outer side of the high-pressure distributor, then an air cylinder drives the plugging head and the air inlet pipe head with the adjusted positions to move towards the direction of the high-pressure distributor, so that the plugging head and the air inlet pipe head are inserted into the holes on the outer side of the high-pressure distributor, wherein a buffer protection assembly performs buffer protection on initial extrusion acting force between the plugging head and the high-pressure distributor, the problem that the plugging head and the air inlet pipe head are damaged due to the fact that initial extrusion acting force is too large is avoided, after plugging is completed, the air blowing assembly is matched with the air inlet pipe head to inflate the high-pressure distributor, whether bubbles are generated on the surface of the high-pressure distributor is observed, if fine bubbles are generated, the air tightness of the detected high-pressure distributor is not enough, in addition, the sealing convex ring can increase the sealing strength between the air inlet pipe head and the high-pressure distributor, a water drop groove can store a small amount of soap liquid, when the air tightness is checked, whether air leakage occurs between the air inlet pipe head and the high-pressure distributor can be detected, and errors are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of a feeding mechanism according to the present invention;

FIG. 3 is a schematic perspective view of the storage mechanism of the present invention;

FIG. 4 is a schematic perspective view of the air tightness detecting mechanism according to the present invention;

FIG. 5 is a schematic perspective view of the air tightness detecting assembly according to the present invention;

FIG. 6 is a schematic perspective view of a plugging assembly according to the present invention;

FIG. 7 is a schematic cross-sectional view of the air tightness detecting assembly according to the present invention;

fig. 8 is a perspective view of the air inlet pipe head according to the present invention.

Reference numerals:

1. a guide rail; 2. a screw; 3. a drive motor; 4. a storage plate; 5. a bi-directional drive assembly; 6. an L pipe; 7. a spray head; 8. a fixed frame; 9. a cylinder; 10. plugging a plug; 11. a drive block; 12. a base plate; 13. a lifting rod; 14. connecting blocks; 15. a lifting groove; 16. a side plate; 17. a connecting strip; 18. a first clamping block; 19. a second clamping block; 20. a chute; 21. a push plate; 22. a sliding sleeve; 23. an air pump; 24. an air inlet pipe head; 25. an air duct; 26. a hose; 27. a barometer; 28. an electromagnetic valve; 29. a moving block; 30. a movable seat; 31. an electric push rod; 32. a slide rail; 33. a screw rod; 34. a rotation handle; 35. a guide groove plate; 36. a guide block; 37. a diagonal bar; 38. a spring; 39. an extension block; 40. a damping lever; 41. sealing the convex ring; 42. a water drop tank; 43. a liquid collecting box; 44. a return pipe; 45. a carriage; 46. brushing the strip; 47. and a circulating pump.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 8, an embodiment of the present invention provides an online sealing test apparatus for a high-pressure distributor of an electric vehicle, including a material conveying mechanism, a lifting mechanism installed at a moving end of the material conveying mechanism, a material placing mechanism fixed at a top end of the lifting mechanism, a spraying assembly arranged above one end of the material conveying mechanism, an airtight detection mechanism arranged above one end of the material conveying mechanism far away from the spraying assembly, the airtight detection mechanism including a fixed frame 8, an airtight detection assembly and three plugging assemblies installed inside the fixed frame 8, and a cylinder 9 fixed between one side of the airtight detection assembly and the plugging assembly and an inner side wall of the fixed frame 8;

the air tightness detection assembly comprises an air inlet pipe head 24, the plugging assembly comprises a plugging head 10, one side of each of the air inlet pipe head 24 and the plugging head 10 is connected with a positioning mechanism, the positioning mechanism is fixedly connected with the end of an extension rod of the air cylinder 9, an air inlet of the air inlet pipe head 24 is communicated with an air blowing assembly, a plurality of sealing convex rings 41 are fixed on the conical outer wall of the air inlet pipe head 24, and a plurality of water drop grooves 42 which are distributed annularly are formed in the circumferential outer wall of each sealing convex ring 41;

positioning mechanism includes the lateral displacement subassembly with cylinder 9 fixed connection, and vertical displacement subassembly is installed to the removal end of lateral displacement subassembly, and vertical displacement subassembly's removal end one side is equipped with removes seat 30, removes and installs the buffering protection component between the inboard of seat 30 and the removal end of vertical displacement subassembly.

The specific working method comprises the following steps: the high-pressure distributor to be detected placed on the placement mechanism can be conveyed through the conveying mechanism, the surface of the high-pressure distributor is sprayed with soapy water by using the spraying assembly in the conveying process, when the high-pressure distributor moves to the position below the fixed frame 8, the lifting mechanism drives the high-pressure distributor to move upwards until the high-pressure distributor moves to a position between the air tightness detection assembly and the plugging assembly, the positions of the plugging head 10 and the air inlet pipe head 24 are adjusted through the transverse displacement assembly and the vertical displacement assembly, so that the plugging head 10 and the air inlet pipe head 24 on the moving seat 30 are aligned with the outer side hole of the high-pressure distributor, then the air cylinder 9 drives the plugging head 10 and the air inlet pipe head 24 with the adjusted positions to move towards the direction of the high-pressure distributor, so that the plugging head 10 and the air inlet pipe head 24 are inserted into the outer side hole of the high-pressure distributor, and the buffer protection assembly buffers and protects the initial extrusion acting force between the plugging head 10 and the air inlet pipe head 24 and the high-pressure distributor, avoid too big the leading to the fact of initial extrusion effort to produce the damage of shutoff head 10 and intake pipe head 24, after the shutoff is accomplished, the air blowing subassembly cooperation intake pipe head 24 is aerifyd to the high pressure distributor in, whether the observation high pressure distributor surface has the bubble to produce, if produce fine bubble, then the high pressure distributor gas tightness that detects is not enough, sealing convex ring 41 can increase the seal strength between intake pipe head 24 and the high pressure distributor in addition, water droplet groove 42 can store a small amount of soap lye, when the inspection gas tightness, can detect whether leak gas between intake pipe head 24 and the high pressure distributor, avoid producing the error.

Specifically, the lateral displacement subassembly includes the slurcam 21 with 9 fixed connection of cylinder, sliding sleeve is equipped with sliding sleeve 22 on the slurcam 21, the interior side slot has been seted up to slurcam 21 one side, install electric putter 31 in the interior side slot, electric putter 31's extension rod end and sliding sleeve 22's one end fixed connection, vertical displacement unit mount is on sliding sleeve 22 lateral wall, electric putter 31 through slurcam 21 can drive sliding sleeve 22 and slide along slurcam 21 lateral wall, the realization carries out lateral displacement adjustment work purpose to the removal seat 30 on the vertical displacement subassembly.

Specifically, vertical displacement subassembly includes slide rail 32, lead screw 33 is installed to the slide rail 32 internal rotation, the threaded bush is equipped with movable block 29 with slide rail 32 sliding connection on the lead screw 33, the top of lead screw 33 is fixed with rotation handle 34, buffering protection component installs between the lateral wall of movable block 29 and the removal seat 30 inside wall, can drive lead screw 33 through twisting rotation handle 34 and rotate for movable block 29 is along slide rail 32 up-and-down motion, moves the high regulation work purpose of air intake pipe head 24 and shutoff head 10 on the seat 30.

Specifically, buffering protection component includes and removes a plurality of damping rods 40 of 30 inside wall fixed connection of seat, the cover is equipped with the extension piece 39 with movable block 29 lateral wall fixed connection on the damping rod 40, the pot head that damping rod 40 is close to and removes seat 30 is equipped with spring 38, be connected with direction supporting component between movable block 29's the lateral wall and the removal seat 30 inner wall, can be at intake pipe head 24 through damping rod 40, carry out compression work to spring 38 under the extrusion when shutoff head 10 is connected with high pressure distributor, the cooperation extends the damping direction cooperation of piece 39 and damping rod 40, the realization is cushioned protection to the initial extrusion effort between shutoff head 10 and intake pipe head 24 and the high pressure distributor, avoid too big messenger's of initial extrusion effort shutoff head 10 and intake pipe head 24 to produce the damage.

Specifically, the direction supporting component includes with removal seat 30 inside wall fixed connection's guide frid 35, sliding connection has guide block 36 in guide frid 35, rotates between one side of guide block 36 and the movable block 29 lateral wall and is connected with down tube 37, can promote guide block 36 and move along guide frid 35 when removing seat 30 compression spring 38 through down tube 37, improves the structural strength between removal seat 30 and the movable block 29.

Specifically, the air-blowing subassembly is including installing the air pump 23 on sliding sleeve 22, the end of giving vent to anger of air pump 23 is fixed with air duct 25, it has hose 26 to fix the intercommunication between the one end that air duct 25 kept away from air pump 23 and intake manifold head 24, the one end that air duct 25 is close to hose 26 is fixed with barometer 27, the one end that air duct 25 is close to air pump 23 is fixed with solenoid valve 28, can fill external air in the high pressure distributor through air pump 23, the realization is to the inside pressure boost work purpose of high pressure distributor, be convenient for observe whether the high pressure distributor surface after spraying soapy water produces the bubble.

Specifically, the spraying assembly comprises two L pipes 6, a plurality of spray heads 7 are fixed on one side of each L pipe 6, a liquid inlet end of each L pipe 6 is externally connected with a soapy water infusion mechanism, the soapy water can be sprayed on the surface of a high-pressure distributor to be detected in an all-around mode through the spray heads 7 on the two L pipes 6, a liquid collecting box 43 is arranged below each L pipe 6, a sliding frame 45 is fixed on the top of a fixed frame 8, a brush strip 46 is slidably mounted on the sliding frame 45, a reciprocating telescopic rod is connected to one side of each brush strip 46, a cavity is formed in each brush strip 46, a plurality of sponge strips communicated with the cavities are fixed at the bottom of each brush strip 46, a circulating pump 47 mounted at the top of the sliding frame 45 is connected to the top of each brush strip 46 through a hose, a return pipe 44 is fixedly communicated between the liquid inlet end of each circulating pump 47 and the liquid collecting box 43, the soapy liquid recovered by the liquid collecting box 43 can be output to the cavities of the brush strips 46 through the circulating pumps 47, and is led out by the sponge strips, reciprocating telescopic rod can drive brush strip 46 along the motion of balladeur train 45, and the sponge strip that contains the soap lye brushes along high pressure distributor surface, and the bubble that produces when avoiding spraying soap water influences the observation result, can also carry out recovery work to the soap water after spraying.

Specifically, defeated material mechanism includes two guide rails 1, 1 inboard sliding connection of guide rail has drive block 11, screw rod 2 is installed to 1 internal rotation of one of them guide rail, 2 screw threads of screw rod are pegged graft in drive block 11, the one end of screw rod 2 is fixed with driving motor 3, two drive blocks 11 and lifting mechanism bottom fixed connection can drive screw rod 2 through driving motor 3 and rotate, and then drive block 11 along 1 inside slides of guide rail, and then the high pressure distributor that the drive put on the thing mechanism carries out defeated material work.

Specifically, lifting mechanism includes bottom plate 12, bottom plate 12 lateral wall is fixed with the connecting block 14 with 11 fixed connection of drive block, the cover is equipped with curb plate 16 on the connecting block 14, set up on the curb plate 16 and form sliding fit's lift groove 15 with connecting block 14, the top of curb plate 16 with put thing mechanism bottom fixed connection, bottom plate 12 bottom with put and be fixed with lifter 13 between the thing mechanism bottom, can drive through lifter 13 on bottom plate 12 and put thing mechanism upward movement, wait to detect on the opposition thing mechanism and wait that high-pressure distributor carries out lifting work, after the detection is accomplished, it waits to detect high-pressure distributor downward motion to drive on putting the thing mechanism, break away from in the fixed frame 8.

Specifically, the object placing mechanism comprises an object placing plate 4 fixedly connected with the top end of a lifting rod 13, two sliding grooves 20 are formed in the object placing plate 4, two symmetrical first clamping blocks 18 and two symmetrical second clamping blocks 19 are respectively installed in the two sliding grooves 20, a connecting strip 17 is fixed between the bottoms of the first clamping blocks 18 and the bottoms of the second clamping blocks 19 which are positioned on the same side, a bidirectional driving component 5 is connected between the two first clamping blocks 18 in a threaded manner, the bidirectional driving component 5 comprises a servo motor, a bidirectional screw rod rotatably installed in the sliding grooves 20 is fixed to an output shaft of the servo motor, the two first clamping blocks 18 are sleeved at the two ends of the bidirectional screw rod in a threaded manner, the high-pressure distributor to be detected can be placed through the object placing plate 4, the two first clamping blocks 18 and the two second clamping blocks 19 on the two sides of the object placing plate 4 can synchronously move through the bidirectional driving component 5, and clamping work on the two sides of the high-pressure distributor to be detected can be realized, the stability of the detection work of the high-pressure distributor to be detected is improved, wherein the servo motor drives the bidirectional screw to rotate, and then the two first clamping blocks 18 are driven to mutually approach to achieve the purpose of clamping work.

The specific working method comprises the following steps: the high-pressure distributor to be detected can be placed through the object placing plate 4, the two first clamping blocks 18 and the two second clamping blocks 19 on the two sides of the object placing plate 4 can synchronously move through the bidirectional driving assembly 5, the clamping work on the two sides of the high-pressure distributor to be detected is realized, the driving motor 3 can drive the screw rod 2 to rotate, the driving block 11 is further driven to slide along the inner part of the guide rail 1, the high-pressure distributor on the object placing mechanism is further driven to carry out material conveying work, the sprayer 7 on the two L pipes 6 can carry out omnibearing soap water spraying work on the surface of the high-pressure distributor to be detected in the conveying process, when the high-pressure distributor moves to the lower part of the fixed frame 8, the object placing mechanism can be driven to move upwards through the lifting rod 13 on the bottom plate 12, and the high-pressure distributor to be detected on the object placing mechanism can be lifted until the high-pressure distributor moves to the position between the air tightness detecting assembly and the blocking assembly, the sliding sleeve 22 can be driven to slide along the outer side wall of the pushing plate 21 by an electric push rod 31 on the pushing plate 21, so that the aim of adjusting the transverse displacement of the moving seat 30 on the vertical displacement assembly is fulfilled, the rotating handle 34 is screwed to drive the lead screw 33 to rotate, the moving block 29 moves up and down along the sliding rail 32, so that the height of the air inlet pipe head 24 and the air inlet pipe head 10 on the moving seat 30 is adjusted, the air inlet pipe head 24 and the air outlet pipe head 10 on the moving seat 30 are aligned with the outer side hole of the high-pressure distributor, then the air cylinder 9 drives the adjusted position of the air inlet pipe head 24 and the air outlet pipe head 10 to move towards the direction of the high-pressure distributor, so that the air inlet pipe head 24 and the air outlet pipe head 10 are inserted into the outer side hole of the high-pressure distributor, wherein the buffer protection assembly performs buffer protection on initial extrusion acting force between the air inlet pipe head 24 and the high-pressure distributor, so as to avoid the damage of the air inlet pipe head 24 and the air outlet pipe head 10 caused by the excessive initial extrusion acting force, after plugging is finished, the soap liquid recovered by the liquid collecting box 43 can be output to the cavity of the brush bar 46 through the circulating pump 47, the sponge bar leads out the soap liquid, the reciprocating telescopic rod can drive the brush bar 46 to move along the sliding frame 45, the sponge bar containing the soap liquid brushes along the surface of the high-pressure distributor, the observation result is prevented from being influenced by bubbles generated when the soap water is sprayed, the sprayed soap water can be recovered, the air pump 23 can charge outside air into the high-pressure distributor, the purpose of pressurization work inside the high-pressure distributor is realized, whether bubbles are generated on the surface of the high-pressure distributor is observed, if fine bubbles are generated, the detected air tightness of the high-pressure distributor is insufficient, in addition, the sealing convex ring 41 can increase the sealing strength between the air inlet pipe head 24 and the high-pressure distributor, the water drop groove 42 can store a small amount of soap liquid, and when the air tightness is detected, whether air leakage exists between the air inlet pipe head 24 and the high-pressure distributor can be detected, avoiding the generation of errors.

Claims (10)

1. The utility model provides an electric automobile high pressure distributor's online leakproofness test equipment, includes defeated material mechanism, its characterized in that: a lifting mechanism is installed at the moving end of the material conveying mechanism, a material placing mechanism is fixed at the top end of the lifting mechanism, a spraying assembly is arranged above one end of the material conveying mechanism, an air tightness detection mechanism is arranged above one end, far away from the spraying assembly, of the material conveying mechanism, the air tightness detection mechanism comprises a fixed frame (8), an air tightness detection assembly and three plugging assemblies, the air cylinder (9) is installed between one side of the air tightness detection assembly and the plugging assemblies and the inner side wall of the fixed frame (8);

the air tightness detection assembly comprises an air inlet pipe head (24), the plugging assembly comprises a plugging head (10), one side of each of the air inlet pipe head (24) and the plugging head (10) is connected with a positioning mechanism, the positioning mechanisms are fixedly connected with the end of an extension rod of the air cylinder (9), an air inlet of the air inlet pipe head (24) is communicated with an air blowing assembly, a plurality of sealing convex rings (41) are fixed on the outer wall of a cone of the air inlet pipe head (24), and a plurality of annularly distributed water drop grooves (42) are formed in the outer wall of the circumference of each sealing convex ring (41);

the positioning mechanism comprises a transverse displacement assembly fixedly connected with the air cylinder (9), a vertical displacement assembly is installed at the moving end of the transverse displacement assembly, a moving seat (30) is arranged on one side of the moving end of the vertical displacement assembly, and a buffering protection assembly is installed between the inner side of the moving seat (30) and the moving end of the vertical displacement assembly.

2. The on-line tightness testing device of the high-pressure distributor of the electric vehicle as claimed in claim 1, wherein: the lateral displacement subassembly include with cylinder (9) fixed connection's slurcam (21), sliding sleeve is equipped with sliding sleeve (22) on slurcam (21), the interior side channel has been seted up to slurcam (21) one side, install electric putter (31) in the interior side channel, the extension rod end of electric putter (31) with the one end fixed connection of sliding sleeve (22), vertical displacement unit mount is in on sliding sleeve (22) the lateral wall.

3. The on-line tightness testing device of the high-voltage distributor of the electric automobile according to claim 2, characterized in that: the vertical displacement assembly comprises a sliding rail (32), a lead screw (33) is rotatably mounted in the sliding rail (32), a moving block (29) which is slidably connected with the sliding rail (32) is sleeved on the lead screw (33) in a threaded manner, a rotating handle (34) is fixed at the top end of the lead screw (33), and the buffering protection assembly is mounted between the side wall of the moving block (29) and the inner side wall of the moving seat (30).

4. The on-line tightness testing device of the high-pressure distributor of the electric automobile according to claim 3, characterized in that: the buffer protection assembly comprises a plurality of damping rods (40) fixedly connected with the inner side wall of the moving seat (30), the damping rods (40) are sleeved with extending blocks (39) fixedly connected with the side wall of the moving block (29), one end, close to the moving seat (30), of each damping rod (40) is sleeved with a spring (38), and a guide supporting assembly is connected between the side wall of the moving block (29) and the inner wall of the moving seat (30).

5. The on-line tightness testing device of the high-voltage distributor of the electric automobile according to claim 4, characterized in that: the guide support component comprises a guide groove plate (35) fixedly connected with the inner side wall of the moving seat (30), a guide block (36) is connected in the guide groove plate (35) in a sliding mode, and an inclined rod (37) is connected between one side of the guide block (36) and the side wall of the moving block (29) in a rotating mode.

6. The on-line tightness testing device of the high-voltage distributor of the electric automobile according to claim 2, characterized in that: the air-blowing assembly is including installing air pump (23) on sliding sleeve (22), the end of giving vent to anger of air pump (23) is fixed with air duct (25), air duct (25) are kept away from the one end of air pump (23) with fixed intercommunication has hose (26) between air inlet pipe head (24), air duct (25) are close to the one end of hose (26) is fixed with barometer (27), air duct (25) are close to the one end of air pump (23) is fixed with solenoid valve (28).

7. The on-line tightness testing device of the high-pressure distributor of the electric vehicle as claimed in claim 1, wherein: the spray set includes two L pipes (6), one side of L pipe (6) is fixed with a plurality of shower nozzles (7), the feed liquor end of L pipe (6) is external to have soapy water infusion mechanism, L pipe (6) below is provided with album liquid box (43), the top of fixed frame (8) is fixed with balladeur train (45), slidable mounting has brush strip (46) on balladeur train (45), brush strip (46) one side is connected with reciprocal telescopic link, be equipped with the cavity in brush strip (46), brush strip (46) bottom is fixed with a plurality of sponge strips with the cavity intercommunication, there is the installation on the top of brush strip (46) through hose connection the circulating pump (47) at balladeur train (45) top, the feed liquor end of circulating pump (47) with it has back flow (44) to fix the intercommunication between album liquid box (43).

8. The on-line tightness testing device of the high-pressure distributor of the electric vehicle as claimed in claim 1, wherein: defeated material mechanism includes two guide rails (1), the inboard sliding connection of guide rail (1) has drive block (11), one of them screw rod (2) are installed to guide rail (1) internal rotation, screw rod (2) screw thread is pegged graft in drive block (11), the one end of screw rod (2) is fixed with driving motor (3), two drive block (11) with lifting mechanism bottom fixed connection.

9. The on-line tightness testing device of the high-voltage distributor of the electric vehicle as claimed in claim 8, wherein: lifting mechanism includes bottom plate (12), bottom plate (12) lateral wall be fixed with drive block (11) fixed connection's connecting block (14), the cover is equipped with curb plate (16) on connecting block (14), seted up on curb plate (16) with connecting block (14) form sliding fit's lift groove (15), the top of curb plate (16) with put thing mechanism bottom fixed connection, bottom plate (12) bottom with it is fixed with lifter (13) to put between the thing mechanism bottom.

10. The on-line tightness testing device of the high-voltage distributor of the electric vehicle as claimed in claim 9, wherein: put the thing mechanism include with lifter (13) top fixed connection put thing board (4), put and seted up two spout (20) on the thing board (4), two install first grip block (18) and second grip block (19) of two symmetries respectively in spout (20), be located and be fixed with connecting strip (17), two between first grip block (18) and the second grip block (19) bottom of homonymy be fixed with two-way drive assembly (5) threaded connection between first grip block (18), two-way drive assembly (5) include servo motor, servo motor's output shaft is fixed with to rotate and installs two-way screw rod in spout (20), two first grip block (18) threaded sleeve is established two-way screw rod's both ends.

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