CN214722113U - Nitrogen oxygen sensor encapsulation automation line - Google Patents
Nitrogen oxygen sensor encapsulation automation line Download PDFInfo
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- CN214722113U CN214722113U CN202120248372.1U CN202120248372U CN214722113U CN 214722113 U CN214722113 U CN 214722113U CN 202120248372 U CN202120248372 U CN 202120248372U CN 214722113 U CN214722113 U CN 214722113U
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Abstract
An automatic production line for packaging a nitrogen-oxygen sensor comprises a chip prepressing unit, a chip height correcting unit, a buckle cap riveting unit, an air tightness detecting unit, an inner protective cover prepressing unit, an outer protective cover pressing unit, a wire harness pressing unit, an outer sleeve pressing unit, an on-off detecting unit, a laser welding unit, an outer sleeve necking unit, a laser marking unit and an automatic robot blanking unit which are sequentially connected through a conveying belt mechanism; the utility model discloses a high automatic assembly of nitrogen oxygen sensor product can improve product quality and uniformity, improves working conditions, reduces production area, reduces human intervention, and reduction in production cost shortens production cycle, guarantees the production equilibrium, has apparent economic benefits.
Description
Technical Field
The utility model belongs to the technical field of automatic control, concretely relates to nitrogen oxygen sensor encapsulation automation line.
Background
The nitrogen-oxygen sensor is used for measuring whether nitrogen oxides in exhaust gas after combustion of the engine are excessive, namely nitrogen oxide concentration, and converting the nitrogen oxide concentration into an electric signal to be transmitted to the engine ECU. The conversion and purification of the discharged pollutants are carried out to the maximum extent.
As shown in figure 1, the nitrogen-oxygen sensor in the prior art is formed by connecting an outer shield, an inner shield, a probe base, a nut, a ceramic chip, a short ceramic ring, sealing filler, a long ceramic ring, a buckle cap, an outer sleeve, a clamping piece, a waterproof sealing piece and a wire. The middle part of the ceramic chip is sleeved with a buckling cap and a probe base, the tail end of the probe base is a conical tube inserted into the buckling cap and is riveted with the buckling cap, the middle part outside the probe base is provided with a clamping groove and a boss for assembling an outer sleeve and a shaft shoulder for fixing a nut, the ceramic chip in the cavity of the probe base is sequentially sleeved with a short ceramic ring, a sealing filler and a long ceramic ring, the head part of the probe base is welded with an inner protective cover, the middle part outside the probe base is sleeved with a nut, the tail part of the probe base is welded with an outer sleeve, the front end of the nut is clamped on the shaft shoulder of the probe base, the rear end of the nut is clamped on the outer sleeve, the nut freely rotates on the probe base, the other end of the ceramic chip in the outer sleeve is connected with high-temperature-resistant wires with different colors installed at the tail end of the outer sleeve through a clamping piece, the clamping piece is structurally characterized in that two ceramic clamping pieces are installed in a spring body, and the spring body is used for fixing the ceramic clamping pieces, install 4 wiring posts on every ceramic clip, the other end of ceramic chip inserts in the holder and links to each other with the protruding contact of metal of terminal, and the terminal is connected with the wire one-to-one of different colours, installs waterproof sealing spare between outer tube tail end and the wire, and waterproof sealing spare has temperature resistant, waterproof and gas permeability, carries out throat processing to outer tube tail end, guarantees its waterproof nature.
Because the nitrogen-oxygen sensor is located in the exhaust pipe with high temperature and high pressure in the working environment, the core sensor chip and the signal acquisition circuit thereof need to be effectively protected, and therefore the nitrogen-oxygen sensor chip needs to be specially packaged and comprises high-temperature-resistant sealing filler, a protective cover, wiring harness necking protection and the like. In order to improve the reliability of the packaging structure of the oxynitride sensor and the degree of automatic assembly in the packaging process, it is necessary to design an automatic mechanical tool. However, no automatic packaging production line for the nitrogen-oxygen sensor exists in the market at present, and the packaging work of the whole nitrogen-oxygen sensor is completed mainly by manual operation of a single device. Therefore, the nitrogen-oxygen sensor is low in assembly efficiency, high in defective rate after assembly is completed, and difficult to guarantee the consistency of packaging.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome the shortcoming of current nitrogen oxygen sensor encapsulation production line, provide a reasonable in design, work efficiency height, reduction in production cost's nitrogen oxygen sensor encapsulation automation line.
The technical scheme for solving the technical problems is as follows: an automatic production line for packaging a nitrogen-oxygen sensor comprises a chip prepressing unit, a chip height correcting unit, a buckle cap riveting unit, an air tightness detecting unit, an inner protective cover prepressing unit, an outer protective cover pressing unit, a wire harness pressing unit, an outer sleeve pressing unit, an on-off detecting unit, a laser welding unit, an outer sleeve necking unit, a laser marking unit and an automatic robot blanking unit which are sequentially connected through a conveying belt mechanism;
the chip pre-pressing unit is used for assembling the short ceramic ring, the sealing filler, the long ceramic ring, the buckle cap, the ceramic chip and the probe base of the nitrogen-oxygen sensor together;
the chip height correcting unit is used for correcting and resetting the semi-finished product finished by the chip pre-pressing unit;
the buckling cap riveting unit is used for riveting the buckling cap of the semi-finished product conveyed by the chip pre-pressing unit;
the air tightness detection unit is used for carrying out air tightness detection on the semi-finished product conveyed by the buckle cap riveting and pressing unit;
the inner and outer protective cover prepressing unit is used for pressing the inner and outer protective covers of the nitrogen-oxygen sensor into a unified whole;
the protective cover press-fitting unit is used for press-fitting the whole inner and outer protective covers conveyed by the inner and outer protective cover pre-pressing unit and the semi-finished probe base conveyed by the air tightness detection unit into a whole;
the wire harness crimping unit is used for crimping the wire harness and the semi-finished product conveyed by the protective cover press-fitting unit;
the outer sleeve pressing unit is used for pressing the outer sleeve of the nitrogen-oxygen sensor and the semi-finished probe base conveyed by the wire harness pressing unit into a whole;
the on-off detection unit is used for carrying out on-off test on the semi-finished product conveyed by the outer sleeve pressing unit;
the laser welding unit is used for performing laser welding on the semi-finished outer sleeve conveyed by the on-off detection unit and the probe base;
the outer sleeve necking unit is used for carrying out riveting and necking on the outer sleeve of the semi-finished product conveyed by the laser welding unit;
the laser marking unit is used for marking and lettering the semi-finished product conveyed by the outer sleeve necking unit to complete packaging of the nitrogen-oxygen sensor;
and the robot automatic blanking unit is used for placing finished products of the nitrogen oxygen sensors on empty charging trays according to a set sequence, and conveying the full-load charging trays to a blanking cache area.
As a preferred technical solution, the chip pre-pressing unit is: the mounting bracket is provided with a six-station distributing disc, an automatic feeding vibration disc, an automatic material taking and placing XY moving platform, a sealing filler taking and placing robot, a motor prepressing system and an automatic discharging gripper; the automatic feeding vibration disc finishes vibration discharging of short ceramic rings, long ceramic rings and buckling caps, the automatic feeding XY moving platform sequentially grabs the buckling caps and the long ceramic rings and puts the buckling caps and the long ceramic rings into the six-station corresponding station fixture of the distribution disc, the sealing filler grabbing robot grabs the sealing materials and puts the sealing materials into the six-station corresponding station fixture of the distribution disc, the motor prepressing system is used for prepressing the sealing materials, and after the prepressing is finished, the automatic feeding gripper grabs the assembled semi-finished products and places the semi-finished products on a tray of a conveying belt to convey the semi-finished products to the chip height correction unit.
As a preferred technical solution, the chip height correction unit is: a product induction sensor, a mechanical clamping jaw, a correction cylinder, a transverse moving cylinder and a height detector are arranged on the workbench; when the product inductive sensor senses that a product exists on the conveying belt, the mechanical clamping jaw grabs the product from the conveying belt into the height correction clamp, the correction cylinder presses down to finish the correction and reset of the product, the transverse moving cylinder moves the product which is corrected to the height detector below to detect the height of the product, and the mechanical clamping jaw is used for grabbing the qualified product to be placed on the conveying belt and conveying the product to the cap buckling and riveting unit.
The utility model has the advantages as follows:
the utility model discloses a conveyor belt mechanism couples each process unit according to nitrogen oxygen sensor assembly process order, has realized the high automatic assembly of nitrogen oxygen sensor product, can improve product quality and uniformity, improves working condition, reduces production area, reduces human intervention, and reduction in production cost shortens production cycle, guarantees the production equilibrium, has apparent economic benefits.
The chip prepressing unit realizes the assembly positioning of the nitrogen-oxygen sensor chip, the sealing filler, the porcelain ring, the buckle cap and the probe base; the utility model discloses a sintering-free sealing filler, the assembly is quick, through vibration dish and robot material loading, can effectively shorten the assemble duration, and the sealing filler pre-compaction adopts servo motor control, and displacement and pressure sensor are installed additional to the afterbody, and accessible displacement and pressure control pre-pressure and stroke are compared the manual work and are pressed or atmospheric pressure mode, can practice thrift the manpower, improve working condition and efficiency, have solved the unstable difficult problem that leads to the product pre-compaction position inconsistent of atmospheric pressure.
The utility model discloses well knot cap riveting unit with the help of the steady pressure of gas-liquid pressure cylinder to and stable pressure boost speed, can make the sealing material smash completely, and to detaining the even throat of cap, ensure gland packing compaction, fastening. The nitrogen-oxygen sensor can be ensured to be used in complicated and severe environments. Thereby improving the reliability and stability thereof. The pressure and the stroke of the riveting of the buckle cap can be accurately controlled, the height of a product is detected after the riveting of the buckle cap, the problem can be found in time, the whole riveting process is fully automatic, and the packaging quality and the packaging efficiency can be effectively guaranteed.
The utility model discloses well airtight detecting element adopts the duplex position with the help of the airtight detector of high accuracy, and the while detection scheme can effectively shorten production cycle, improves production efficiency, and airtight detection tool seals department adopts soft rubber to seal, can effectively reduce the influence that the frock detected to the product is airtight, detects precision and effect and all improves to some extent.
The utility model discloses well pencil crimping unit is a unit through pencil equipment and crimping design, can effectively avoid the pencil equipment to accomplish the back, needs to transport and carries out the crimping, the harmful effects that detect the break-make in the transportation.
The utility model discloses well laser welding unit welds outer tube and probe base through laser welding and becomes an organic whole to carry out reliable effectual protection to inside chip, avoid the outside complex environment of nitrogen oxygen sensor in the use to the influence of chip itself.
The utility model discloses well laser marking unit, mark through the online of product is beaten, can effectively carry out product model, batch sign and differentiation to the product. The traceability of the product is improved.
Drawings
FIG. 1 is a schematic diagram of a configuration of a nitrogen oxygen sensor.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural view of the chip pre-pressing unit 1 in fig. 2.
Fig. 4 is a schematic structural diagram of the chip height correcting unit 2 in fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, but the present invention is not limited to the following embodiments.
In fig. 2, the automatic packaging line for a nitrogen oxygen sensor of this embodiment is composed of a chip pre-pressing unit 1, a chip height correcting unit 2, a cap-fastening riveting unit 3, an air tightness detecting unit 4, an inner and outer protective cover pre-pressing unit 5, a protective cover press-fitting unit 6, a wire harness press-fitting unit 7, an outer sleeve press-fitting unit 8, an on-off detecting unit 9, a laser welding unit 10, an outer sleeve necking unit 11, a laser marking unit 12, an automatic robot blanking unit 13, and a conveyor belt mechanism 14.
The automatic chip-protection device comprises a chip pre-pressing unit 1, a chip height correcting unit 2, a button cap riveting unit 3, an air tightness detecting unit 4, an inner and outer protective cover pre-pressing unit 5, a protective cover press-fitting unit 6, a wire harness press-fitting unit 7, an outer sleeve press-fitting unit 8, an on-off detecting unit 9, a laser welding unit 10, an outer sleeve necking unit 11, a laser marking unit 12 and an automatic robot blanking unit 13 which are sequentially connected through a conveyor belt mechanism 14.
In fig. 3, the chip pre-pressing unit 1 includes a mounting bracket 107, a six-station distribution plate 104, an automatic feeding vibration plate 101, an automatic feeding XY moving platform 102, a sealant taking and placing robot 103, a motor pre-pressing system 105, and an automatic placing gripper 106, the mounting bracket 107 is provided with the automatic feeding vibration plate 101, the automatic feeding vibration plate 101 completes vibration material discharging of short ceramic rings, long ceramic rings, and snap caps, the automatic feeding XY moving platform 102 on the mounting bracket 107 sequentially grabs the snap caps, the long ceramic rings are placed in the station fixtures corresponding to the six-station distribution plate 104 on the mounting bracket 107, the sealant taking and placing robot 103 on the mounting bracket 107 grabs the sealant and places the sealant in the station fixtures corresponding to the six-station distribution plate 104, the short ceramic rings, the sealant, the long ceramic rings, and the snap caps complete automatic loading, and then the ceramic chips and the probe bases are manually inserted, after all parts are prepared, the sealing material is pre-pressed by a motor pre-pressing system 105 positioned on the mounting bracket 107, and after the pre-pressing is completed, the semi-finished product which is assembled is grabbed and placed on a tray of the conveying belt by an automatic blanking grabbing hand 106 and conveyed to the chip height correcting unit 2.
In fig. 4, the chip height correction unit 2 includes a workbench, a product induction sensor 201, a mechanical clamping jaw 202, a height correction clamp 203, a correction cylinder 204, a traverse cylinder 205, and a height detector 206, the workbench is provided with the product induction sensor 201, the mechanical clamping jaw 202, the correction cylinder 204, the traverse cylinder 205, and the height detector 206, when the induction sensor 201 senses that a product is on the conveyor belt, the mechanical clamping jaw 202 grabs the product from the conveyor belt into the height correction clamp 203, the correction cylinder 204 presses down, the product correction reset transmitted by the chip pre-pressing unit 1 is completed, the traverse cylinder 205 moves the corrected product to the position below the height detector 206 to detect the product height, the product height is qualified, the mechanical clamping jaw 202 grabs the qualified product and places the qualified product on the tray of the conveyor belt, and conveys the qualified product to the cap riveting unit 3.
Detain cap riveting unit 3, carry out the riveting to detaining the cap, remove the chip height detection position with the product automatically after the riveting is accomplished and detect, the product height is qualified, places the product on the transfer chain tray, transports airtight detecting element 4.
And the air tightness detection unit 4 is used for grabbing the products conveyed by the conveying belt to start a round of inflation, pressure maintaining and deflation tests, is qualified in air tightness detection, places the products on a conveying line tray, and conveys the products to the protection cover press-fitting unit 6.
And the inner and outer protective cover prepressing unit 5 is used for pressing the inner and outer protective covers into a unified whole, placing the unified whole on a tray of the conveyor belt after the pressing is finished, and conveying the unified whole to the protective cover pressing unit 6.
And a protective cover press-fitting unit 6 for press-fitting the whole inner and outer protective covers delivered from the inner and outer protective cover pre-pressing unit 5 and the probe base of the product delivered from the airtightness detection unit 4 into a whole and delivering the whole to a wire harness press-fitting unit 7.
And the wire harness compression unit 7 is used for compressing the wire harness and the product conveyed by the protective cover press-fitting unit 6 into a whole, manually checking the compression effect and quality after compression is finished, manually placing the qualified wire harness on a conveyor belt tray according to the specification, and conveying the qualified wire harness to the outer sleeve press-fitting unit 8.
And the outer sleeve pressing unit 8 is used for pressing the outer sleeve of the nitrogen-oxygen sensor and the probe base of the product conveyed by the wire harness pressing unit 7 into a whole, and the product is conveyed to the on-off detection unit 9 after the pressing is finished.
And the on-off detection unit 9 is used for carrying out on-off test on the product conveyed by the outer sleeve pressing unit 8, and conveying the product to the laser welding unit 10 after the on-off detection is qualified.
Laser welding unit 10, the semi-manufactured goods's that conveys to break-make detecting element 9 through laser outer tube and probe base welding as an organic whole to carry out reliable effectual protection to inside chip, avoid the influence of the outside complex environment of nitrogen oxygen sensor in the use to chip itself, the outer tube throat unit is transported to the product of welding completion.
And an outer sleeve necking unit 11 for performing riveting and necking on the outer sleeve of the product conveyed from the laser welding unit 10, and conveying the outer sleeve to a laser marking unit 12 after the riveting and necking are completed.
And the laser marking unit 12 is used for marking and lettering batch numbers, product information and the like of the products conveyed by the outer sleeve necking unit, and after the marking and lettering are finished, the nitrogen-oxygen sensor is packaged and finished.
And the robot automatic blanking unit 13 is used for placing the finished products of the nitrogen-oxygen sensors on the empty material discs of the conveyor belt according to a set sequence, and conveying the material discs to a blanking cache area after the material discs are fully loaded.
Claims (3)
1. The utility model provides a nitrogen oxygen sensor encapsulation automation line which characterized in that: the device comprises a chip prepressing unit (1), a chip height correcting unit (2), a buckle cap riveting unit (3), an air tightness detecting unit (4), an inner and outer protective cover prepressing unit (5), a protective cover press-fitting unit (6), a wire harness press-fitting unit (7), an outer sleeve press-fitting unit (8), an on-off detecting unit (9), a laser welding unit (10), an outer sleeve necking unit (11), a laser marking unit (12) and a robot automatic blanking unit (13) which are sequentially connected through a conveyor belt mechanism (14);
the chip pre-pressing unit (1) is used for assembling a short ceramic ring, a sealing filler, a long ceramic ring, a buckle cap, a ceramic chip and a probe base of the nitrogen-oxygen sensor together;
the chip height correcting unit (2) is used for correcting and resetting the semi-finished product finished by the chip pre-pressing unit (1);
the buckling cap riveting unit (3) is used for riveting the buckling cap of the semi-finished product conveyed by the chip pre-pressing unit (1);
the air tightness detection unit (4) is used for carrying out air tightness detection on the semi-finished product conveyed by the button cap riveting unit (3);
the inner and outer protective cover pre-pressing unit (5) is used for pressing the inner and outer protective covers of the nitrogen oxygen sensor into a unified whole;
the protective cover press-fitting unit (6) is used for press-fitting the whole inner and outer protective covers conveyed by the inner and outer protective cover pre-pressing unit (5) and the semi-finished probe base conveyed by the air tightness detection unit (4) into a whole;
the wire harness crimping unit (7) is used for crimping the wire harness and the semi-finished product conveyed by the protective cover press-fitting unit (6);
the outer sleeve pressing unit (8) is used for pressing the outer sleeve of the nitrogen-oxygen sensor and the semi-finished probe base conveyed by the wire harness pressing unit (7) into a whole;
the on-off detection unit (9) is used for carrying out on-off test on the semi-finished product conveyed by the outer sleeve pressing unit (8);
the laser welding unit (10) is used for performing laser welding on the semi-finished outer sleeve conveyed by the on-off detection unit (9) and the probe base;
the outer sleeve necking unit (11) is used for carrying out riveting and necking on the outer sleeve of the semi-finished product conveyed by the laser welding unit (10);
the laser marking unit (12) is used for marking and lettering the semi-finished product conveyed by the outer sleeve necking unit to complete the packaging of the nitrogen-oxygen sensor;
and the robot automatic blanking unit (13) is used for placing finished products of the nitrogen oxygen sensors on empty charging trays according to a set sequence, and conveying the full-load charging trays to a blanking cache area.
2. The automatic production line for packaging nitrogen-oxygen sensor as claimed in claim 1, wherein the chip pre-pressing unit (1) is: a six-station distributing disc (104), an automatic feeding vibration disc (101), an automatic taking and placing XY moving platform (102), a sealing filler taking and placing robot (103), a motor prepressing system (105) and an automatic discharging gripper (106) are arranged on the mounting bracket (107); short ceramic ring, long ceramic ring, the vibration row material of detaining the cap is accomplished to automatic feeding vibration dish (101), snatch in proper order by automatic blowing XY moving platform (102) of getting, detain the cap, long ceramic ring, put into six station minute driving disk (104) and correspond the station anchor clamps, gland packing gets blowing robot (103) and snatchs the sealing material and put into six station minute driving disk (104) and correspond the station anchor clamps, motor pre-compaction system (105) are used for carrying out the pre-compaction to the sealing material, after the pre-compaction was accomplished, automatic unloading tongs (106) snatch the semi-manufactured goods of accomplishing the assembly and place semi-manufactured goods on the tray of conveyer belt and transport chip height correction unit (2) with semi-manufactured goods.
3. The packaging automation line of claim 1, wherein the chip height calibration unit (2) is: a product induction sensor (201), a mechanical clamping jaw (202), a correction cylinder (204), a transverse moving cylinder (205) and a height detector (206) are arranged on the workbench; when a product induction sensor (201) induces that a product is on a conveying belt, a mechanical clamping jaw (202) grabs the product from the conveying belt into a height correction clamp (303), a correction cylinder (204) is pressed down to finish correction and reset of the product, a transverse moving cylinder (205) moves the corrected product to the position below a height detector (206) to detect the height of the product, and the mechanical clamping jaw (202) is used for grabbing the qualified product, placing the qualified product on a conveying belt mechanism (14) and conveying the qualified product to a cap buckling and riveting unit (3).
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CN202120248372.1U CN214722113U (en) | 2021-01-28 | 2021-01-28 | Nitrogen oxygen sensor encapsulation automation line |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114227252A (en) * | 2022-01-06 | 2022-03-25 | 珠海市晋德方智能科技有限公司 | Full-automatic production line of probe |
CN114952092A (en) * | 2022-05-24 | 2022-08-30 | 无锡雄伟精工科技有限公司 | Product welding production line |
CN115582800A (en) * | 2022-10-31 | 2023-01-10 | 广州美闰陶热动电器有限公司 | Automatic press-fitting, welding and impressing integrated equipment for oxygen sensor |
CN118197971A (en) * | 2024-05-17 | 2024-06-14 | 度亘核芯光电技术(苏州)有限公司 | Automatic packaging equipment and automatic packaging method for bar overlapping array |
-
2021
- 2021-01-28 CN CN202120248372.1U patent/CN214722113U/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114227252A (en) * | 2022-01-06 | 2022-03-25 | 珠海市晋德方智能科技有限公司 | Full-automatic production line of probe |
CN114952092A (en) * | 2022-05-24 | 2022-08-30 | 无锡雄伟精工科技有限公司 | Product welding production line |
CN114952092B (en) * | 2022-05-24 | 2023-10-13 | 无锡雄伟精工科技有限公司 | Product welding production line |
CN115582800A (en) * | 2022-10-31 | 2023-01-10 | 广州美闰陶热动电器有限公司 | Automatic press-fitting, welding and impressing integrated equipment for oxygen sensor |
CN118197971A (en) * | 2024-05-17 | 2024-06-14 | 度亘核芯光电技术(苏州)有限公司 | Automatic packaging equipment and automatic packaging method for bar overlapping array |
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