Double-station helium gas inflation recovery leakage detection device for automobile air conditioner heat exchanger and leakage detection method thereofTechnical Field
The invention relates to the technical field of automobile accessory production detection, in particular to a double-station helium gas inflation recycling leakage detection device for an automobile air conditioner heat exchanger and a leakage detection method thereof.
Background
When the automobile air conditioner is produced and assembled, an air conditioner heat exchanger leakage detecting process is specified in the process flow, whether the air conditioner heat exchanger leaks or not is detected, and a method adopted before the leakage detecting process is that firstly, an exchanger is placed in a vacuum box of a leakage detecting device, then the exchanger is connected with an air charging pipeline, then a starting device closes a box cover of the vacuum box, firstly, nitrogen is charged into the exchanger for air leakage detection, if leakage nitrogen is detected, helium is charged into the exchanger for air leakage detection, and meanwhile, the charged helium can be recycled by the leakage detecting device.
However, in the use process of the vacuum box of the existing leakage detection device, a user needs to personally place the exchanger in the vacuum box, and meanwhile, because the overall height of the leakage detection device is limited, the maximum opening and closing angle of the box cover of the vacuum box is limited, so that the head of the user can easily touch the box cover when the user places or takes the exchanger, thereby damaging the body of the user, and meanwhile, in order to avoid the head of the user touching the box cover, a worker with higher height needs to bend down to operate, so that the worker feels uncomfortable.
Disclosure of Invention
The invention aims to provide a double-station helium gas inflation recovery leakage detection device for an automobile air conditioner heat exchanger and a leakage detection method thereof, so as to solve the problems in the background art.
The double-station helium gas inflation recovery leakage detection device for the automobile air conditioner heat exchanger comprises a control box and an inflation pipeline, wherein detection boxes are arranged on two sides of the control box, a placing groove is formed in each of the two detection boxes, a vacuum box is arranged in each of the placing grooves, a box cover is arranged on each of the vacuum boxes, one end of each of the box covers is provided with a first shaft, the first shaft is connected with the detection box, a placing plate is arranged in each of the vacuum boxes, a linkage mechanism is arranged on the side wall of each of the vacuum boxes, and the box cover is deflected to be opened and driven to move by the linkage mechanism to extend out of the vacuum box;
The utility model provides a pneumatic pipe, including placing the board, just be provided with the spool on the spool, just place board one side and be provided with assist mechanism, remove to withdraw place the board extremely in the vacuum box, utilize assist mechanism drives the spool rotates the winding and accomodates the pneumatic pipe, be different from prior art, in the in-process of actual use, drive the arc pole through opening the case lid and deflect, and then drive fluted disc five rotations, thereby drive fluted disc four rotations, and then drive the three rotations of moving shaft, thereby drive fluted disc three rotations, and then drive fluted disc two rotations through the chain, thereby drive fluted disc one rotation, thereby drive rack one and remove, and then drive to place the board and move and drive the work piece and stretch out the vacuum box outside, thereby avoid the user to touch the case lid easily when placing or taking the exchanger, and then increase user's use experience, otherwise close the case lid so that place the board is automatic to be withdrawn in the vacuum box, drive fluted disc six and roll along rack two, and then drive five rotations of rotating shaft, thereby drive the spool and twine pneumatic pipe, thereby make the pneumatic pipe place more orderly.
Preferably, guide rails are arranged on two sides of the placing plate, fixing columns are arranged on two sides of the vacuum box, and one guide rail penetrates through one fixing column and slides along the fixing column to drive the placing plate to move;
the linkage mechanism comprises a second shaft arranged on the vacuum box, a fluted disc I is arranged at one end of the second shaft, a rack I meshed with the fluted disc I is arranged on the placing plate, and the second shaft is rotated to drive the placing plate to move;
one end of the second shaft penetrates through the vacuum box and is provided with a fluted disc II, a shaft III is arranged on the side wall of the vacuum box, a fluted disc III is arranged on the shaft III, the fluted disc III is connected with the fluted disc II through a chain, and the shaft III is rotated to drive the shaft II to rotate;
A shaft IV is arranged on the side wall of the vacuum box, a fluted disc IV is arranged on the shaft III, a fluted disc V meshed with the fluted disc IV is arranged on the shaft IV, and the fluted disc V is rotated to drive the shaft III to rotate;
The side wall of the box cover is provided with arc rods, a plurality of tooth grooves meshed with the fluted disc five are uniformly formed in the arc rods at equal intervals, and the box cover is deflected to drive the fluted disc five to rotate.
Preferably, the third fluted disc adopts a design with the diameter larger than that of the second fluted disc.
Preferably, one end of the arc-shaped rod, which is close to the box cover, adopts a smooth arc-shaped surface design.
Preferably, the auxiliary mechanism comprises a fifth shaft arranged on the placing plate, one end of the fifth shaft is fixed with the scroll, one end of the fifth shaft penetrates through the placing plate and is provided with a fluted disc six, the bottom end of the vacuum box is provided with a rack II meshed with the fluted disc six, and the placing plate is moved to drive the fluted disc six to roll along the rack II so as to enable the scroll to rotate;
One end of the scroll is provided with a limiting hole, and one end of the inflation pipeline penetrates through the limiting hole.
Preferably, the contact surface of the scroll and the inflation pipeline is designed by flexible materials.
Preferably, a plurality of ventilation grooves are uniformly formed in the placement plate at equal intervals.
Firstly, preparing before detection, determining and checking a detection device, then placing a workpiece in a vacuum box and connecting an inflation pipeline;
Step two, starting nitrogen detection, starting a detection device and filling nitrogen into a workpiece through the inflation pipeline;
starting helium detection, starting a detection device, filling helium into a workpiece through the inflation pipeline, and recovering helium through the detection device after the detection is finished;
And step four, unloading the workpiece, opening the box cover and pulling out the air charging pipeline.
Compared with the prior art, the invention has the beneficial effects that:
The invention is different from the prior art, in the actual use process, the arc-shaped rod is driven to deflect by opening the box cover, the fluted disc five is driven to rotate, the fluted disc four is driven to rotate, the movable shaft three is driven to rotate, the fluted disc two is driven to rotate by the chain, the movable shaft two is driven to rotate, the fluted disc one is driven to rotate, the rack one is driven to move, the placing plate is driven to move, the workpiece is driven to extend out of the vacuum box, the situation that the head of a user can easily touch the box cover when the user places or takes the exchanger is avoided, the use experience of the user is further improved, otherwise, the box cover is closed, the placing plate is automatically retracted into the vacuum box, the fluted disc six is driven to roll along the rack two, the rotating shaft five is driven to rotate, and the reel is driven to rotate and wind the inflation pipeline, so that the inflation pipeline is placed in order.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the partial cross-section of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the partial cross-section of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 in another orientation in accordance with the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 in another orientation in accordance with the present invention;
FIG. 6 is a schematic view of the partial cross-section of FIG. 5 in accordance with the present invention;
FIG. 7 is a flow chart of the present invention.
The device comprises a 1-control box, a 11-gas-filling pipeline, a 12-detection box, a 13-placing groove, a 14-vacuum box, a 15-box cover, a 16-shaft I, a 2-placing plate, a 3-linkage mechanism, a 4-reel, a 5-auxiliary mechanism, a 17-guide rail, a 18-fixed column, a 31-shaft II, a 32-fluted disc I, a 33-rack I, a 34-fluted disc II, a 35-shaft III, a 36-fluted disc III, a 37-shaft IV, a 38-fluted disc IV, a 39-fluted disc five, a 41-arc-shaped rod, a 42-fluted disc, a 51-shaft five, a 52-fluted disc six, a 53-fluted disc II, a 54-limiting hole and a 55-gas-permeable groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the invention provides a technical scheme that a double-station helium gas inflation recycling leakage detecting device for an automobile air conditioner heat exchanger comprises a control box 1 and an inflation pipeline 11, wherein detection boxes 12 are arranged at two sides of the control box 1, a placing groove 13 is formed in each detection box 12, a vacuum box 14 is arranged in each placing groove 13, the inflation pipeline 11 is positioned in each vacuum box 14, the vacuum boxes 14 are used for placing workpieces, a box cover 15 is arranged on each vacuum box 14, one end of each box cover 15 is fixedly connected with a first shaft 16, the first shaft 16 is rotatably connected with the inner wall of each detection box 12 through a bearing, a placing plate 2 is arranged in each vacuum box 14, the placing plate 2 is used for placing the workpieces, a linkage mechanism 3 is arranged on the side wall of each vacuum box 14, the box cover 15 is deflected to be opened, the placing plate 2 is driven by the linkage mechanism 3 to move and extend out of the vacuum boxes 14, and then the workpieces are automatically moved to extend out of the vacuum boxes 14, and accordingly the head of the users can easily touch the box cover 15 when the users place or take the exchangers are prevented from possibly touching the box covers 15, and the use experience of the users is increased;
The placing plate 2 is provided with the reel 4, the inflation pipeline 11 is wound on the reel 4, one side of the placing plate 2 is provided with the auxiliary mechanism 5, the placing plate 2 is moved and retracted into the vacuum box 14, and the auxiliary mechanism 5 is utilized to drive the reel 4 to rotate and wind the inflation pipeline 11, so that the inflation pipeline 11 is placed more orderly.
The two sides of the placing plate 2 are fixedly connected with guide rails 17, the two sides of the bottom end of the inner wall of the vacuum box 14 are fixedly connected with fixing columns 18, the guide rails 17 penetrate through the fixing columns 18 and are in sliding connection with the inner wall of the vacuum box, and one guide rail 17 penetrates through one fixing column 18 and slides along the fixing column to drive the placing plate 2 to move, so that the placing plate 2 moves more stably;
The linkage mechanism 3 comprises a second shaft 31 which is rotatably connected to the side wall of the vacuum box 14 through a bearing, a first fluted disc 32 is fixedly connected to one end of the second shaft 31 positioned in the vacuum box 14, a first rack 33 meshed with the first fluted disc 32 is fixedly connected to the placing plate 2, and the second shaft 31 drives the first fluted disc 32 to rotate so as to drive the first rack 33 to move and further drive the placing plate 2 to move;
One end of the second shaft 31 passes through the vacuum box 14 and is fixedly connected with a second fluted disc 34, a third shaft 35 is rotatably connected to the side wall of the vacuum box 14 through a bearing, a third fluted disc 36 is fixedly connected to the third shaft 35, the third fluted disc 36 is connected with the second fluted disc 34 through a chain, the third shaft 35 drives the third fluted disc 36 to rotate, and the second fluted disc 34 is driven to rotate through the chain, so that the second shaft 31 is driven to rotate;
The side wall of the vacuum box 14 is rotationally connected with a shaft IV 37 through a bearing, the shaft III 35 is fixedly connected with a fluted disc IV 38, the shaft IV 37 is fixedly connected with a fluted disc V39 meshed with the fluted disc IV 38, and the fluted disc V39 is rotated to drive the fluted disc IV 38 to rotate so as to drive the shaft III 35 to rotate;
The outer side wall of the box cover 15 is fixedly connected with an arc-shaped rod 41, the arc-shaped rod 41 is concentric with the first shaft 16, a plurality of tooth grooves 42 meshed with the fluted disc five 39 are uniformly formed in the arc-shaped rod 41 at equal intervals, and the deflection box cover 15 drives the arc-shaped rod 41 to deflect, so that the fluted disc five 39 is driven to rotate.
The third toothed disc 36 is of a larger diameter than the second toothed disc 34, thereby allowing the placement plate 2 to move relatively quickly.
The end of the arc-shaped rod 41 close to the box cover 15 adopts a smooth arc-shaped surface design, so that the placing plate 2 can not be driven to move in an initial period of time when the control box 1 is opened, and interference is avoided.
The auxiliary mechanism 5 comprises a fifth shaft 51 which is rotationally connected with the placing plate 2 through a bearing, one end of the fifth shaft 51 is fixedly connected with the reel 4, one end of the fifth shaft 51 penetrates through the placing plate 2 and is fixedly connected with a fluted disc six 52, a second rack 53 which is meshed with the fluted disc six 52 is fixedly connected to the inner wall of the bottom end of the vacuum box 14, and the placing plate 2 is moved to drive the fluted disc six 52 to roll along the second rack 53 so as to drive the fifth shaft 51 to rotate, so that the reel 4 rotates;
a limiting hole 54 is formed in one end of the spool 4, and one end of the inflation pipeline 11 penetrates through the limiting hole 54 and is wrapped and fixed through the limiting hole 54.
The contact surface of the scroll 4 and the inflation tube 11 is designed with flexible material for friction enhancement.
A plurality of ventilation slots 55 are uniformly formed in the placement plate 2 at equal intervals for relatively reducing the overall weight of the placement plate 2.
In the normal working process of the double-station helium gas filling, recycling and leakage detecting device for the automobile air conditioner heat exchanger, the arc-shaped rod 41 is driven to deflect by opening the box cover 15, the fluted disc five 39 is driven to rotate, the fluted disc four 38 is driven to rotate, the movable shaft three 35 is driven to rotate, the fluted disc three 36 is driven to rotate, the fluted disc two 34 is driven to rotate through the chain, the movable shaft two 31 is driven to rotate, the fluted disc one 32 is driven to move, the placing plate 2 is driven to move to drive a workpiece to extend out of the vacuum box 14, the situation that the head of the user can easily touch the box cover 15 when the user places or takes the exchanger is avoided, the use experience of the user is further improved, otherwise, the box cover 15 is closed to enable the placing plate 2 to be automatically retracted into the vacuum box 14, meanwhile the fluted disc six 52 is driven to roll along the rack two 53, the movable shaft five 51 is driven to rotate, the reel 4 is driven to rotate and wind the inflating pipeline 11, and the inflating pipeline 11 is placed in order.
Referring to FIG. 7, the invention provides a method for recovering and detecting leakage of double-station helium gas for an automobile air conditioner heat exchanger, comprising the following steps of firstly preparing, determining and checking a detection device before detection, and then placing a workpiece in a vacuum box 14 and connecting an inflation pipeline 11;
step two, starting nitrogen detection, starting a detection device and filling nitrogen into a workpiece through an inflation pipeline 11;
Starting helium detection, starting a detection device, filling helium into a workpiece through an inflation pipeline 11, and recovering helium through the detection device after the detection is finished;
And step four, unloading the workpiece, opening the box cover 15 and pulling out the air charging pipeline 11.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.