CN115255929A

CN115255929A - Ignition coil efficient automatic assembly detection assembly line and method

Info

Publication number: CN115255929A
Application number: CN202211143823.0A
Authority: CN
Inventors: 贺竞人; 朱俊杰
Original assignee: Jiangsu Yuan Tech Intelligent Technology Co ltd
Current assignee: Jiangsu Yuan Tech Intelligent Technology Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-11-01
Anticipated expiration: 2042-09-20
Also published as: CN115255929B

Abstract

The invention relates to an ignition coil high-efficiency automatic assembly detection assembly line and a method, which comprises an ignition coil assembly unit, a detection circulating conveying line which is arranged in a shape like a Chinese character 'hui', an overturning and transferring module which overturns an ignition coil for 180 degrees up and down, a detection feeding and carrying mechanism which takes the ignition coil out of the overturning and transferring module and places the ignition coil on the detection circulating conveying line, a laser coding unit, a code reading unit, an aging test unit, a performance test unit, a jack probe detection unit, a sheath oil coating unit, a scanning unbinding unit and a blanking unit which are sequentially arranged along the direction of the detection circulating conveying line; the ignition coil assembling unit is provided with a sheath height detecting unit, a rubber surface height detecting unit and a spring existence detecting unit. The ignition coil assembling device can realize a series of automatic operations of full-automatic assembling of the ignition coil, aging detection after assembling, electrical property detection after aging, plug probe inspection, oil spraying inside the sheath and the like, and greatly improves the product quality and the production efficiency.

Description

Ignition coil efficient automatic assembly detection assembly line and method

Technical Field

The invention belongs to the technical field of automation equipment, and particularly relates to an efficient automatic assembly detection assembly line and method for an ignition coil.

Background

The ignition system of the engine is an important component of the automobile engine, the ignition coil is a main component of the ignition system, and the voltage output by the storage battery is changed into high voltage after passing through the ignition coil, so that sufficient ignition voltage is provided for the spark plug. The engine ignition coil sheath is an accessory of the engine ignition coil and is usually made of rubber.

Currently, an ignition coil is composed of a shell assembly and a sheath assembly, wherein the shell assembly includes a shell, a coil arranged in the shell and other accessories; the sheath assembly includes a sheath and a spring disposed within the sheath. Assembling the shell assembly and the sheath assembly of the ignition coil is required during assembling. After the assembly is finished, the ignition coil needs to be subjected to aging detection and oiling operation inside the sheath, and in the prior art, a full-automatic assembly and test device for a rubber sheath is disclosed in patent publication No. CN104308494B, the equipment realizes the functions of coating talcum powder on the inner wall of the rubber sheath, installing a spring and carrying out high-pressure resistance test, but does not describe the automatic assembly of the sheath assembly and the shell assembly and is not suitable for the automatic assembly of the sheath assembly and the shell assembly.

In the prior art, patent publication No. CN104538162B discloses an automatic assembling, spraying and testing device for an automobile ignition coil sheath, but in the device, only the installation process of the sheath and the spring is described, and whether the spraying inside the sheath and the spring are detected, but when an ignition coil is subjected to an aging test, an electrified plug needs to be plugged with a plug on a shell assembly to realize electric connection, and then high-voltage discharge is performed to perform high-voltage aging resistance detection.

Based on the fact that no efficient automatic assembly detection device for realizing the ignition coil exists in the prior art, a new efficient automatic assembly detection assembly line and a new efficient automatic assembly detection method for the ignition coil are needed to solve the technical problems.

Disclosure of Invention

The invention mainly aims to provide an efficient automatic assembly detection assembly line for an ignition coil, which can realize a series of automatic operations of full-automatic assembly of the ignition coil, aging detection after assembly, electrical property detection after aging, plug probe inspection, oil spraying inside a sheath and the like, and greatly improve the product quality and the production efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme: an ignition coil efficient automatic assembly detection assembly line comprises an ignition coil assembly unit, a detection circulating conveying line, an overturning and transferring module, a detection feeding and carrying mechanism, a laser code printing unit, a code reading unit, an aging test unit, a performance test unit, a jack probe detection unit, a sheath oil coating unit, a scanning unbinding unit and a blanking unit, wherein the detection circulating conveying line is arranged in a shape of a Chinese character 'hui', the overturning and transferring module is used for receiving an ignition coil output by the ignition coil assembly unit and overturning the ignition coil up and down by 180 degrees, the ignition coil is taken out from the overturning and transferring module and is placed on the detection circulating conveying line, and the laser code printing unit, the code reading unit, the aging test unit, the performance test unit, the jack probe detection unit, the sheath oil coating unit, the scanning unbinding unit and the blanking unit are sequentially arranged along the conveying direction of the detection circulating conveying line; a plurality of detection jigs are circularly conveyed on the detection circular conveying line; and a sheath height detection unit, a rubber surface height detection unit and a spring presence detection unit are arranged in the ignition coil assembly unit.

Further, the ignition coil assembling unit comprises a rotating disk which performs rotary motion, an assembling jig which is arranged on the rotating disk at an equal angle, a shell assembly feeding station, a sheath feeding assembling station, a sheath height detecting station, a rubber surface height detecting station, a spring existence detecting station and an assembly blanking station which are arranged around the rotating disk, wherein a shell assembly feeding unit is arranged at the shell assembly feeding station, and a sheath assembling unit and a sheath feeding and assembling unit are arranged at the sheath feeding assembling station; the sheath height detection unit is arranged at the sheath height detection station, the rubber surface height detection unit is arranged at the rubber surface height detection station, and the spring presence detection unit is arranged at the spring presence detection station.

Furthermore, the ignition coil assembling unit further comprises a feeding and discharging robot, the shell component feeding unit is clamped by the clamping device and placed in the assembling jig at the shell component feeding station, and the assembling part in the assembling jig at the component discharging station is clamped by the clamping device to achieve discharging.

Furthermore, a transfer supporting platform is arranged at the component discharging station, the overturning transfer module is arranged beside the transfer supporting platform, and the ignition coil on the transfer supporting platform is clamped and overturned for 180 degrees and then is moved to the position below the detection loading and carrying mechanism.

Furthermore, the sheath assembling unit comprises a pressing module located above the assembling jig, a sheath bearing seat located below the rotating disc, a second motor driving the sheath bearing seat to perform rotary motion, a third motor driving the sheath bearing seat to perform vertical motion, and a second cylinder driving the sheath bearing seat to perform horizontal motion.

Further, the spring existence detection unit comprises a sixth air cylinder located below the rotating disc and an annular proximity sensor driven by the sixth air cylinder to move up and down.

Further, the detection circulating conveyor line comprises a first conveyor line and a second conveyor line which are arranged in parallel and have opposite conveying directions, and a jig transverse moving module which is arranged at two ends of the first conveyor line and the second conveyor line and is used for realizing the transfer of the detection jig between the first conveyor line and the second conveyor line; the laser coding unit is arranged on one side of the first conveying line, the code reading unit, the aging test unit, the performance test unit, the jack probe detection unit, the sheath oiling unit, the scanning unbinding unit and the blanking unit are arranged on the other opposite side of the second conveying line.

Furthermore, cache stations are arranged on the second conveying line at the upstream and the downstream of the aging test unit, and a second stopping module is arranged at each cache station; the buffer station stores the single detection jig together in a row by matching the second stop module with the second conveying line to form a detection jig module, and then enters the aging test unit for aging test synchronously by taking the detection jig module as a unit.

Further, the code reading unit is arranged at the cache station and sequentially performs code reading operation on the detection jigs at the cache station;

the code reading unit comprises a sixth motor and a code scanner which is driven by the sixth motor to move along the second conveying line.

Further, the aging test unit comprises a plurality of sub-modules; the sub-module comprises a first jacking module for jacking the detection jig upwards to a set height, a first inserting module which is positioned above the detection jig and is inserted into the end part of the sheath assembly, a second inserting module which is inserted into the jack at the position of the shell assembly, and a third stopping module for stopping the detection jig from moving;

the first plug-in module comprises a twelfth air cylinder, a sixth supporting plate driven by the twelfth air cylinder to move up and down, a first plug fixed on the sixth supporting plate, and a protective cylinder for enclosing and blocking the first plug.

Furthermore, the jack probe detection unit comprises a fourth blocking and stopping module for blocking the detection jig to move forward, a third jacking module for jacking the detection jig upwards to separate from the conveying line, a detection camera for acquiring jack picture information at the position of the shell assembly, a seventh motor for driving the detection camera to adjust the pitching angle, and a first transfer module for driving the detection camera to move up and down and horizontally.

Further, the sheath oiling unit comprises a fourth jacking module, a fifth blocking and stopping module, an axial limiting block for limiting the peripheral position of the sheath assembly, a fourteenth air cylinder for driving the axial limiting block to move horizontally, a port clamping block for limiting the position of a port at the top end of the sheath by matching with the axial limiting block, a fifteenth air cylinder for driving the port clamping block to move horizontally, an oil nozzle positioned above the detection jig, and a second transfer module for driving the oil nozzle to move horizontally and vertically.

Another object of the present invention is to provide a method for detecting efficient and automatic assembly of an ignition coil, which includes:

s1) assembling an ignition coil:

s101) feeding and loading of a shell assembly: automatically clamping the shell assembly, and placing the shell assembly into an assembly jig in a state that the inserting part inserted into the sheath is in a downward state;

s102) feeding and feeding of a sheath assembly: the automatic clamping sheath assembly is arranged in the sheath bearing seat in an axial vertical state;

s103) assembling the shell assembly and the sheath assembly: pressing the upper surface of the shell assembly in the assembling jig, driving the sheath bearing seat to bear the sheath assembly to move to the lower part of the assembling jig, and realizing opposite insertion assembly with the shell assembly in a rotating and lifting mode to obtain the ignition coil;

s2) sheath assembly in-place detection: detecting whether the sheath component is inserted in place with the shell component;

s3) detecting the height of the rubber surface of the shell assembly; detecting whether the height difference from the upper surface of the shell assembly to a set reference plane meets the set requirement or not by taking the set reference plane as the reference;

s4) detecting whether a spring in the sheath assembly exists or not: an annular proximity inductor is utilized, and is sleeved on the sheath assembly to move from bottom to top, so that whether a spring in the sheath is still in the sheath is detected;

s5) ignition coil assembling, blanking and detecting and feeding: automatically taking out the ignition coil from the assembly jig, turning the ignition coil up and down for 180 degrees, and placing the ignition coil qualified for detection into a detection jig on a detection circulating conveying line in a state that the shell assembly is arranged below the shell assembly and the sheath assembly is arranged above the shell assembly;

s6) laser coding: the ignition coil moves to a laser coding station along with the detection circulating conveying line, and laser coding is carried out at the set position of the ignition coil;

s7) detecting jig code reading binding: scanning the bar code of each detection jig on the detection circulating conveying line, and binding the bar code information of the detection jig with the laser coding information of the ignition coil on the detection circulating conveying line;

s8) aging detection: aging detection is carried out simultaneously by taking a set number of ignition coils as a unit;

s9) performance detection: the ignition coils move to a performance detection station one by one along with the detection circulating conveying line to perform performance detection;

s10) detecting a jack probe at the shell assembly: utilizing a detection camera to acquire images of jacks at the shell assembly, and matching with automatic detection software to judge whether the jacks are qualified or not;

s11) coating oil in the sheath: accurately positioning the position of the sheath assembly, keeping the axis of the sheath assembly in a vertical state, and extending an oil nozzle into the sheath to automatically oil the inner wall of the sheath;

s12) scanning unbinding: scanning the laser coding information on the ignition coil, and removing the binding relationship between the laser coding information and the bar code information of the corresponding detection jig;

s13) detecting blanking: taking the ignition coil out of the detection jig by using a blanking unit, and automatically blanking qualified products and NG products according to the detection results of the steps 8) to 10); the empty detection jig returns to the position of the detection loading position under the conveying of the detection circulating conveying line to accept the next assembled ignition coil for detecting the ignition coil.

Compared with the prior art, the ignition coil efficient automatic assembly detection assembly line and the method have the advantages that:

1) The assembly of the ignition coil and various performance tests are integrated together, and by matching with the ingenious layout design of a circulating conveying line of a rotating disc and a detection jig, a series of automatic operations of feeding and feeding of a shell assembly, feeding and feeding of a sheath assembly, assembly of the shell assembly and the sheath assembly, height detection of a sheath after assembly, surface height detection of the shell assembly, detection of the presence or absence of a spring in the sheath, aging detection of the ignition coil, performance detection of the ignition coil, detection of a plug hole probe of the ignition coil, oiling of the inner wall of the sheath, automatic blanking of the ignition coil and the like are formed, so that the efficiency of the assembly detection of the ignition coil and the production quality of the ignition coil are greatly improved;

2) In the ignition coil assembly unit, the rotating disc is matched with the assembly jig to realize sequential circulation of workpieces among all work stations, and the assembly jig is recycled in the assembly process;

3) After assembly, the sheath height detection, the shell component surface height detection and the detection of the existence of a spring in the sheath are arranged in an ignition coil assembly unit, and the state form that the sheath component is arranged below and the shell component is arranged above the ignition coil after the ignition coil is assembled is fully utilized;

4) The work stations for detecting the aging of the ignition coil, detecting the performance of the ignition coil, detecting the jack probe of the ignition coil and coating oil on the inner wall of the sheath are all arranged beside the detection circulating conveying line, and the detection circulating conveying line is matched with a detection jig to realize the sequential circulation of the ignition coil among the detection work stations so as to fully utilize the ignition coil in the states of 'sheath assembly up and shell assembly down', and simultaneously realize the cyclic utilization of the detection jig;

5) By utilizing the structural design of the assembly jig and the detection jig and matching with the overturning transfer mechanism, the ignition coil is converted from a state that the sheath assembly is arranged at the lower part and the shell assembly is arranged at the upper part into a state that the sheath assembly is arranged at the upper part and the shell assembly is arranged at the lower part, and the optimal distribution and layout of each detection module are combined, so that the detection efficiency of the ignition coil is greatly improved;

6) The overall layout is compact.

Drawings

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

FIG. 2 is a schematic top view of an embodiment of the present invention;

FIG. 3 is a schematic top view of an ignition coil assembly unit according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a sheath assembling unit according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a detecting loading and transporting mechanism and an overturning and transferring module according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a sheath height detecting unit according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a glue level height detection unit according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a spring presence detecting unit according to an embodiment of the present invention;

FIG. 9 is a schematic view of a jig traverse module according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a laser coding unit according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a code reading unit according to an embodiment of the present invention;

FIG. 12 is a diagram illustrating a structure of a burn-in test unit according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a submodule in the burn-in test unit in an embodiment of the present invention;

FIG. 14 is a schematic partial structural view of an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a jack probe detecting unit according to an embodiment of the present invention;

FIG. 16 is a schematic diagram of a jacket oiling unit according to an embodiment of the present invention;

FIG. 17 is a schematic structural diagram of a blanking unit in an embodiment of the present invention;

the figures in the drawings represent:

100-ignition coil high-efficiency automatic assembly detection production line; 200-a housing assembly; 300-a jacket assembly;

1-an ignition coil assembly unit, 11-a rotating disc, 12-an assembly jig, 13-a sheath feeding and feeding unit, 131-a feeding conveying line, 1311-a supporting seat, 132-a positioning module, 133-a sheath carrying module, 14-a sheath assembly unit, 141-a pressing module, 142-a sheath bearing seat, 143-a second motor, 144-a third motor, 145-a second cylinder, 15-a shell component feeding unit, 151-an oil dipping module, 152-a shell component conveying line, 153-an assembly NG blanking conveying line, 16-a sheath height detection unit, 161-a pressing block, 162-a detection push plate, 163-a third cylinder, 164-a first sensor, 165-a fourth cylinder, 17-a rubber surface height detection unit, 171-a fifth cylinder, 172-a second supporting plate, 173-a second sensor, 174-a reference positioning rod, 18-a spring existence detection unit, 181-a sixth cylinder, 182-an annular proximity sensor, 19-a transfer robot, 191-a transfer supporting platform, 192-a turnover transfer module, 1-a first motor, 1922-a first supporting rod 1923-a first clamping jaw component;

2-detecting a circulating conveying line, 21-detecting a jig, 22-a first conveying line, 23-a second conveying line, 24-a jig transverse moving module, 241-an eighth cylinder, 242-a fourth supporting plate, 243-a ninth cylinder, 244-a first supporting plate and 245-a first positioning column;

3-detecting a feeding and carrying mechanism, 31-a fourth motor, 32-a third supporting plate, 33-a seventh cylinder and 34-a second clamping jaw assembly;

4-laser coding unit, 41-jacking rotation module, 411-tenth cylinder, 412-fifth support plate, 413-fifth motor, 414-second support supporting plate, 415-second positioning column, 42-laser coding module and 43-first stop module;

5-code reading unit, 51-sixth motor, 52-code scanner;

6-an aging test unit, 61-a first jacking module, 611-an eleventh cylinder, 612-a third supporting plate, 613-a third positioning column, 62-a first plug-in module, 621-a twelfth cylinder, 622-a sixth supporting plate, 623-a protective cylinder, 63-a second plug-in module, 631-a thirteenth cylinder, 632-a second plug and 64-a third stop module;

7-a performance testing unit, 71-a second jacking module, 72-a third plugging module and 73-a fourth plugging module;

8-jack probe detection unit, 81-fourth stop module, 82-third jacking module, 83-detection camera, 84-seventh motor, 85-first transfer module;

9-a sheath oiling unit, 91-a fourth jacking module, 92-an axial limiting block, 93-a fourteenth air cylinder, 94-a port clamping block, 95-a fifteenth air cylinder, 96-an oil nozzle and 97-a second transfer module;

10-scanning unbinding unit; 101-a blanking unit; 102-a buffer station.

Detailed Description

The invention is described in further detail below with reference to the figures and examples.

The first embodiment is as follows:

referring to fig. 1 to 17, the present embodiment is an efficient automatic assembly and inspection assembly line 100 for an ignition coil, which includes an ignition coil assembly unit 1, an inspection circulation conveyor line 2 arranged in a zigzag shape, and an inspection loading and conveying mechanism 3 for grabbing the ignition coil from the ignition coil assembly unit 1 onto the inspection circulation conveyor line 2; a plurality of detection jigs 21 are circularly conveyed on the detection circulating conveying line 2, and the ignition coil is placed on the detection jigs 21 in a state that the shell assembly is arranged at the lower part and the sheath is arranged at the upper part; one side of the detection circulating conveying line 2 is provided with a laser coding unit 4, and the other opposite side of the detection circulating conveying line 2 is sequentially provided with a code reading unit 5, an aging test unit 6, a performance test unit 7, a jack probe detection unit 8, a sheath oiling unit 9, a scanning unbinding unit 10 and a blanking unit 101.

The ignition coil assembling unit 1 is used for assembling a housing assembly 200 with a sheath assembly 300, wherein the housing assembly 200 comprises a housing, a coil arranged in the housing, and other accessories; the sheath assembly 300 includes a sheath and a spring disposed within the sheath.

The ignition coil assembling unit 1 comprises a rotating disk 11, an assembling jig 12, a shell assembly feeding station, a sheath feeding assembling station, a sheath height detecting station, a rubber surface height detecting station, a spring presence detecting station and an assembly blanking station, wherein the rotating disk 11 performs rotating motion, the assembling jig 12 is arranged on the rotating disk 11 at equal angles, the shell assembly feeding station, the sheath feeding assembling station, the sheath height detecting station, the rubber surface height detecting station and the assembly blanking station are arranged around the rotating disk 11, the shell assembly feeding station is provided with a shell assembly feeding unit 15, the sheath feeding assembling station is provided with a sheath assembling unit 14 and a sheath feeding unit 13, the sheath height detecting station is provided with a sheath height detecting unit 16, the rubber surface height detecting station is provided with a rubber surface height detecting unit 17, and the spring presence detecting unit 18 and the spring absence detecting station are arranged; the ignition coil assembling unit 1 further comprises a loading and unloading robot 19, the shell assembly is clamped in the shell assembly feeding unit 15 and placed in the assembling jig 12 at the shell assembly loading station, and the assembling parts in the assembling jig 12 at the component unloading station are clamped and discharged to realize unloading.

The shell assembly feeding unit 15 adopts a tray type feeding mode and comprises a shell assembly conveying line 152, wherein the shell assembly conveying line 152 is arranged on one side of the detection circulating conveying line 2 in parallel, and is located on the same side of the detection circulating conveying line 2 with the laser coding unit 4. An assembling NG blanking conveying line 153 is further arranged beside the shell assembly conveying line 152, and the shell assembly conveying line 152 is located between the detection circulating conveying line 2 and the assembling NG blanking conveying line 153; the moving range of the inspection loading and carrying mechanism 3 covers the inspection circulation line 2, the case module transfer line 152, and the assembling NG blanking transfer line 153. An oil dipping module 151 is further arranged at the shell assembly feeding station; the loading and unloading robot 19 clamps the shell assembly from the tray, and inserts the insertion part inserted with the sheath into the oil dipping module 151 for dipping oil, and then places the shell assembly into the assembly jig 12. The component blanking station is provided with a transfer supporting platform 191, and an overturning transfer module 192 which clamps the ignition coil on the transfer supporting platform 191, overturns 180 degrees and then moves to the position below the detection loading and conveying mechanism 3. The reverse transfer module 192 includes a first motor 1921, a first support plate 1922 driven by the first motor 1921 to move horizontally, a first cylinder 1923 fixed to the first support plate 1922, and a first gripper assembly 1924 driven by the first cylinder 1923 to rotate.

The jacket supply and feeding unit 13 includes a supply line 131, a positioning module 132 at the end of the supply line 131, and a jacket conveying module 133 for gripping and conveying the jacket from the supply line 131 to the jacket assembling unit 14. The conveyor belt of the feeding conveyor line 131 is provided with a plurality of supporting seats 1311 for supporting the sheaths, the bottoms of the sheaths are inserted into the supporting seats 1311 and integrally move to the position of the positioning module 132 along with the conveyor belt in a vertical state, and after the sheaths are positioned by the positioning module 132, the sheaths are taken away by the sheath carrying module 133 and are placed on the sheath assembling unit 14 for sheath assembling.

The sheath assembling unit 14 includes a pressing module 141 located above the assembling jig 12, a sheath bearing seat 142 located below the rotating disc 11, a second motor 143 driving the sheath bearing seat 142 to perform a rotational motion, a third motor 144 driving the sheath bearing seat 142 to perform an up-down motion, and a second cylinder 145 driving the sheath bearing seat 142 to perform a horizontal motion. When the sheath is assembled, the sheath bearing seat 142 is at the sheath feeding position, the sheath carrying module 133 clamps the sheath and puts the sheath bearing seat 142, then the second cylinder 145 drives the sheath bearing seat 142 to move to the sheath assembling position, the sheath bearing seat is aligned with the insertion part of the shell assembly, the pressing module 141 presses the shell assembly, the third motor 144 drives the sheath bearing seat 142 to move upwards, meanwhile, the second motor 143 drives the sheath bearing seat 142 to rotate, the sheath is assembled in a butt-inserting mode by adopting a knob mode and the shell assembly, and the phenomenon that a local body is expanded and pushed to be overlapped when the long-axis sheath is assembled in a butt-inserting mode is effectively avoided, so that the false appearance of in-place assembling is caused.

The jacket height detecting unit 16 includes a pressing block 161 located above the assembling jig 12, a detecting push plate 162 located below the rotating disk 11, a third cylinder 163 driving the pressing block 161 to move up and down, a first sensor 164 sensing a rising distance of the detecting push plate 162, and a fourth cylinder 165 driving the first sensor 164 to move up and down. When the sheath assembly height is detected, the third cylinder 163 drives the pressing block 161 to press the shell assembly, the fourth cylinder 165 drives the first sensor 164 to ascend to a set position, the detection push plate 162 contacts the bottom of the sheath, the first sensor 164 detects the telescopic distance of the detection push plate 162, and then whether the sheath is assembled in place is judged.

The glue surface height detecting unit 17 includes a fifth cylinder 171 located above the assembly jig 12, a second support plate 172 driven by the fifth cylinder 171 to move up and down, a plurality of second sensors 173 fixed on the second support plate 172, and a reference positioning rod 174 fixed on the lower surface of the second support plate 172 and extending downward to abut against the reference surface of the assembly jig 12, wherein a sensing end of the second sensor 173 abuts against the detection surface of the housing assembly when detecting the height of the glue surface, and the height difference from the upper surface of the housing assembly to the reference surface is detected by the amount of extension and retraction of the sensing end, so as to determine whether the upper housing of the housing assembly is lifted up due to the excessive thickness of the sealant to cause a failure or determine whether the upper housing of the housing assembly is damaged due to the overpressure to cause a failure.

The spring presence/absence detecting unit 18 includes a sixth cylinder 181 located below the rotary plate 11, and a ring-shaped proximity sensor 182 driven by the sixth cylinder 181 to move up and down. When detecting, drive annular through sixth cylinder 181 and be close inductor 182 upward movement, the annular is close inductor 182 and encircles in the periphery of sheath to along the axial up-and-down motion of sheath, if the spring in the sheath is still, the signal can be sensed to annular is close inductor 182, if not, then does not respond to the signal, and then realizes the automated inspection that the spring has or not.

The work flow of the ignition coil assembling unit 1 is as follows: the shell component feeding unit 15 moves the tray fully loaded with the shell components to a set position, the loading and unloading robot 19 clamps the shell components to be stained with oil at the position of the oil staining module 151 and then places the shell components into the assembling jig 12 on the rotating disc 11, the rotating disc 11 drives the shell components to move to the sheath loading and assembling station, before the shell components arrive, the sheath carrying module 133 clamps a sheath from the feeding conveying line 131 and places the sheath on the sheath carrying seat 142, and the sheath carrying seat 142 carries the sheath to move to the sheath assembling position; under the action of the pressing module 141, the second motor 143 and the third motor 144, inserting the sheath onto the insertion part at the bottom of the shell assembly in a turning manner, and assembling to obtain the ignition coil; the ignition coil sequentially rotates to the sheath height detection station, the rubber surface height detection station and the spring presence detection station along with the rotating disk 11, the sheath height detection unit 16 detects whether the sheath is installed in place, the rubber surface height detection unit 17 detects whether the height of the upper surface of the shell assembly meets the requirement, and the spring presence detection unit 18 detects whether the spring in the sheath is still in place; then rotate to subassembly unloading station, go up unloading robot 19 clamp and get the ignition coil after the equipment on transfer supporting platform 191, the upset moves and carries module 192 centre gripping ignition coil in transfer supporting platform 191 position department to 180 upsets make ignition coil be casing subassembly 200 under, the state of sheath subassembly at the top, then move to and detect material loading handling mechanism 3 below, wait to detect material loading handling mechanism 3 and take away, detect material loading handling mechanism 3 and place ignition coil on detecting circulation transfer chain 2 or on assembling NG unloading transfer chain 153 according to the testing result.

The detection loading and conveying mechanism 3 comprises a fourth motor 31, a third supporting plate 32 driven by the fourth motor 31 to move horizontally, a seventh air cylinder 33 fixed on the third supporting plate 32, and a second clamping jaw assembly 34 driven by the seventh air cylinder 33 to move up and down.

The loading and unloading robot 19 clamps the shell assembly on the upper portion and the ignition coil with the sheath assembly in the lower state is placed on the transfer support platform 191, the first clamping jaw assembly 1924 moves to the upper portion of the transfer support platform 191, the transfer support platform 191 ascends, the first clamping jaw assembly 1924 clamps the shell assembly and then moves horizontally to the lower portion of the detection loading and carrying mechanism 3, and in the horizontal moving process, the first air cylinder 1923 drives the first clamping jaw assembly 1924 to turn over, so that the shell assembly in the ignition coil is in the lower portion and the sheath assembly is in the upper portion; the second gripper assembly 34 then grips the jacket assembly and places it on the inspection cycle line 2 or on the assembly NG blanking line 153 depending on whether the product is acceptable.

The detection circulating conveying line 2 comprises a first conveying line 22 and a second conveying line 23 which are arranged in parallel and opposite in conveying direction, and a jig transverse moving module 24 which is arranged at two ends of the first conveying line 22 and the second conveying line 23 and used for realizing the transfer of the detection jig 21 between the first conveying line 22 and the second conveying line 23. The jig transverse moving module 24 comprises an eighth air cylinder 241, a fourth supporting plate 242 driven by the eighth air cylinder 241 to move horizontally, a ninth air cylinder 243 fixed on the fourth supporting plate 242, a first supporting plate 244 driven by the ninth air cylinder 243 to move up and down, and a first positioning column 245 fixed on the first supporting plate 244 and inserted into a corresponding jack in the detection jig 21, wherein the first supporting plate 244 is used for upwards supporting the detection jig 21 on the conveying line to be separated from the conveying surface, then the detection jig 21 is moved to the other conveying line from one conveying line through horizontal transfer, then the first supporting plate 244 descends again, and the detection jig 21 is placed back on the conveying line. The detection jig 21 is arranged on the first conveying line 22 and used for receiving the assembled ignition coil, the ignition coil is moved to the position of the laser coding unit 4 to be subjected to laser coding under the conveying of the first conveying line 22, then the ignition coil is transferred to the second conveying line 23 through the jig transverse moving module 24, and then the ignition coil sequentially passes through the code reading unit 5, the aging test unit 6, the performance test unit 7, the jack probe detection unit 8, the sheath oiling unit 9, the scanning unbinding unit 10 and the blanking unit 101, after corresponding operation is sequentially carried out, the empty detection jig 21 is transferred back to the first conveying line 22 through the jig transverse moving module 24 to be recycled.

The laser coding unit 4 includes a jacking rotation module 41 located below the first conveying line 22, a laser coding module 42 located on one side of the first conveying line 22, and a first stopping module 43 for stopping the detection fixture 21 from advancing. The jacking rotation module 41 includes a tenth air cylinder 411, a fifth support plate 412 driven by the tenth air cylinder 411 to move up and down, a fifth motor 413 fixed on the fifth support plate 412, and a second support plate 414 driven by the fifth motor 413 to rotate, wherein a second positioning column 415 for positioning the position of the detection jig 21 is disposed on the second support plate 414. After the detection jig 21 moves in place, the first blocking and stopping module 43 blocks and stops, then the jacking rotating module 41 jacks the shell assembly to a set height position, the laser coding module 42 codes on the surface of one set side of the shell assembly, and then the detection jig 21 rotates to code on the surface of the other set side of the shell assembly. The laser coding is carried out on the ignition coil, the purpose is to give an identity ID to each product, and in the subsequent detection process, the product ID is bound with the jig ID information of the corresponding detection jig 21, so that the product information tracing is carried out.

The code reading unit 5 is mainly used for reading the bar code information of the detection jig 21 of the ignition coil bearing the specific product ID so as to uniquely bind the bar code information with the product ID of the ignition coil bearing the bar code information, and at a subsequent detection station, the bar code information of the detection jig 21 is used as identification information, and a detection result is matched with the bar code information to correspond to the bar code information, so that the information storage and the information tracing of the product production process in the system are facilitated. The code reading unit 5 comprises a sixth motor 51, a code scanner 52 driven by the sixth motor 51 to move along the second transport line 23.

The second conveying line 23 is provided with a buffer station 102 at the upstream and the downstream of the aging test unit 6, and a second stop module (not shown) is provided at the buffer station 102. The buffer station 102 is used for storing the single detection tools 21 one by one to form a module, and then entering the aging test unit 6 by taking the module as a unit to synchronously perform aging test. The movement range of the code scanner 52 in the code reading unit 5 covers the buffer station 102, and the detection jigs 21 at the buffer station 102 are read one by one while the detection jigs 21 are buffered.

The aging test unit 6 includes several sub-modules, and performs an aging test on a group of ignition coils stored in the buffer station 102. The sub-module comprises a first jacking module 61 for jacking the detection jig 21 upwards to a set height, a first inserting module 62 located above the detection jig 21 and inserted into the end part of the sheath assembly, a second inserting module 63 inserted into the jack of the shell assembly, and a third blocking module 64 for blocking the movement of the group of ignition coils. The first lift module 61 includes an eleventh cylinder 611, a third supporting plate 612 driven by the eleventh cylinder 611 to move up and down, and a third positioning post 613 fixed to the third supporting plate 612. The first plugging module 62 includes a twelfth cylinder 621, a sixth supporting plate 622 driven by the twelfth cylinder 621 to move up and down, a first plug (not shown) fixed on the sixth supporting plate 622, and a protection cylinder 623 enclosing the first plug. The second plugging module 63 includes a thirteenth cylinder 631 and a second plug 632 driven by the thirteenth cylinder 631 to perform a plugging motion. During the aging test, the third stopping module 64 stops the group of inspection jigs 21, the first jacking module 61 lifts the inspection jig 21 upwards, and the position of the inspection jig 21 is limited by the third positioning column 613 to realize accurate positioning; the sixth supporting plate 622 in the first plugging module 62 descends, the first plug is inserted into the sheath, meanwhile, the protective cylinder 623 is sleeved outside the sheath to enclose the whole sheath inside, and potential safety hazards caused by high-voltage leakage generated in the aging test process are avoided; the second plug 632 is then extended and inserted into the jack at the housing assembly, and after insertion, the test program is started for burn-in testing. The first plug and the second plug 632 are electrically connected with an upper computer with a built-in aging detection program, and automatic detection is carried out through the built-in detection program of the upper computer.

The performance testing unit 7 has the same structure as that of the single sub-module in the aging testing unit 6, and includes a second jacking module 71, a third plugging module 72 located above the detection jig 21, and a fourth plugging module 73 plugged into the jack of the housing assembly, and the plugs in the third plugging module 72 and the fourth plugging module 73 are electrically connected to the ignition coil performance testing system.

The jack probe detection unit 8 includes a fourth stopping module 81 for stopping the detection jig 21 from moving forward, a third jacking module 82 for jacking the detection jig 21 upwards to separate from the conveying line, a detection camera 83 for acquiring jack image information at the position of the shell assembly, a seventh motor 84 for driving the detection camera 83 to adjust the pitching angle, and a first transfer module 85 for driving the detection camera 83 to move up and down and horizontally. The jack at the shell component of the detection camera 83 is detected, the position of the probe in the jack is checked, and whether the jack probe is bent, inclined or missing is judged. When the performance test unit 7 and the aging test unit 6 are used for detection, they are required to be inserted into the insertion holes of the ignition coil, and the phenomenon of inserting bad insertion holes may exist in the insertion process, so that the insertion hole probe detection unit 8 is arranged behind the two test units in the embodiment, and the quality of the ignition coil is guaranteed. The first transfer module 85 drives the inspection camera 83 to perform a horizontal linear motion perpendicular to the conveying direction of the second conveyor line 23, and drives the inspection camera 83 to perform an up-and-down motion.

The sheath oiling unit 9 includes a fourth jacking module 91 and a fifth stopping module (not shown), an axial limiting block 92 for limiting the peripheral position of the sheath assembly, a fourteenth cylinder 93 for driving the axial limiting block 92 to move horizontally, a port clamping block 94 for limiting the port position at the top end of the sheath by matching with the axial limiting block 92, a fifteenth cylinder 95 for driving the port clamping block 94 to move horizontally, an oil nozzle 96 located above the detection jig 21, and a second transfer module 97 for driving the oil nozzle 96 to move horizontally and vertically. The axial limiting block 92 limits the circumference of the sheath, ensures that the axis of the sheath is in a vertical state, and is matched with the port clamping block 94 to clamp and fix the top port of the sheath, so that the top port of the sheath is accurately positioned. The oil jet 96 communicates with an oil supply (not shown). The second transfer module 97 drives the oil jet 96 to perform horizontal linear motion perpendicular to the conveying direction of the second conveying line 23, and drives the oil jet 96 to perform vertical motion.

The embodiment also provides an efficient and automatic assembling and detecting method for the ignition coil, which comprises the following steps:

s1) ignition coil assembly:

s101) feeding and loading of a shell assembly: the tray type bearing shell assembly 200 is adopted to realize automatic feeding through the shell assembly conveying line 152, then the shell assembly 200 is clamped through the feeding and discharging robot 19, and the shell assembly 200 is placed into the assembling jig 12 in a state that the inserting part which is inserted in the sheath is positioned downwards;

s102) feeding and feeding of a sheath assembly: inserting the sheath assembly 300 on the supporting seat 1311 in an axial vertical state, arranging the supporting seat 1311 on a conveying belt, feeding the sheath assembly 300 through the conveying belt, and clamping the sheath assembly 300 in a sheath bearing seat 142 through the sheath carrying module 133;

s103) assembling the shell assembly and the sheath assembly: compressing the upper surface of the shell assembly 200 in the assembling jig 12 by using the compressing module 141, and inserting and assembling the sheath assembly 300 carried by the sheath carrying seat 142 with the shell assembly 200 in a rotating and lifting manner from the lower part of the shell assembly 200 to obtain the ignition coil;

s2) sheath assembling in-place detection: the pressing block 161 is used for pressing the shell assembly 200, the detection push plate 162 moves upwards to contact the bottom of the sheath assembly 300, the first sensor 164 is used for sensing the ascending distance of the detection push plate 162, and then whether the sheath is assembled in place is judged;

s3) detecting the height of the rubber surface of the shell assembly; using a set reference plane as a reference, using the second sensor 173 to descend from above to contact the surface to be detected of the housing assembly 200, and determining whether the height of the surface of the housing assembly meets the requirement according to the descending distance of the second sensor 173;

s4) detecting whether a spring in the sheath assembly exists or not: using a ring-shaped proximity sensor 182, walking along the sheath assembly from below the sheath assembly, the sheath assembly is inserted into the middle of the ring-shaped proximity sensor 182, and detecting whether the spring in the sheath is still in place;

s5) ignition coil assembling, blanking and detecting and feeding: the ignition coil is taken out of the assembly jig 12 through the feeding and discharging robot 19 and placed on the transfer supporting platform 191, then the shell assembly of the ignition coil is clamped by the overturning transfer module 192, overturned for 180 degrees, then the sheath assembly of the ignition coil is clamped by the detection feeding and carrying mechanism 3, and the detection result is placed on the assembly NG blanking conveying line 153 or the detection circulating conveying line 2; the empty assembly jig 12 returns to the upper material position of the shell assembly to receive the next shell assembly for assembling the ignition coil;

s6) laser coding: the ignition coil is placed on the detection jig 21 in a state that the shell assembly is arranged at the lower part and the sheath assembly is arranged at the upper part, and the laser coding unit 4 codes the ignition coil at a set position;

s7) detecting jig code reading binding: scanning the bar code of each detection jig 21 on the detection circulating conveying line 2 by using the bar code scanner 52, and binding the bar code information of the detection jig 21 with the laser coding information of the ignition coil thereon;

s8) aging detection: the detection jig 21 bears the ignition coil and moves to the position of the aging test unit 6 to carry out aging test;

s9) performance detection: the detection jig 21 bears the ignition coil and moves to the position of the performance test unit 7 to carry out performance test;

s10) detecting a jack probe at the shell assembly: the detection jig 21 bears the ignition coil and moves to the position of the jack probe detection unit 8, the detection camera 83 is used for carrying out image acquisition on the jack at the position of the shell assembly 200, and automatic detection software is matched to judge whether the jack is qualified or not;

s11) coating oil in the sheath: the detection jig 21 bears the ignition coil and moves to the position of the sheath oiling unit 9, the position of the sheath assembly 300 is accurately positioned by using the axial limiting block 92 and the port clamping block 94, and then the oil nozzle 96 extends into the sheath to perform oiling operation on the inner wall of the sheath;

s12) scanning and unbinding: the detection jig 21 bears the ignition coil and moves to the position of the scanning unbinding unit 10, the laser coding information on the ignition coil is scanned by using the code scanner, and the binding relationship between the laser coding information and the bar code information corresponding to the detection jig 21 is released;

s13) detecting blanking: the blanking unit 101 takes the ignition coil out of the detection jig 21 and carries out automatic blanking of qualified products and NG products according to the detection results of the steps 8) to 10); the empty detection jig 21 returns to the position of the detection loading position to accept the next assembled ignition coil for detecting the ignition coil.

The assembly of the ignition coil and various performance detections are integrated together, and by matching with a rotary disk and the ingenious layout design of a circulating conveying line of a detection jig, a series of automatic operations of feeding of a shell assembly, feeding of a jacket assembly, assembling of the shell assembly and the jacket assembly, height detection of a jacket after assembly, surface height detection of the shell assembly, detection of the presence or absence of a spring in the jacket, aging detection of the ignition coil, performance detection of the ignition coil, detection of a plug hole probe of the ignition coil, oil coating of the inner wall of the jacket, automatic blanking of the ignition coil and the like are formed, and the efficiency of the assembly detection of the ignition coil and the production quality of the ignition coil are greatly improved.

In the ignition coil assembly unit, the rotating disc is matched with the assembly jig to realize the sequential circulation of workpieces among all work stations, and the cyclic utilization of the assembly jig in the assembly process is also realized; the method comprises the steps of arranging sheath height detection after assembly, shell assembly surface height detection and detection of the presence or absence of a spring in a sheath in an ignition coil assembly unit, fully utilizing the state form that a sheath assembly is arranged below and a shell assembly is arranged above an ignition coil after the ignition coil is assembled, then utilizing the structural design of an assembly jig and a detection jig, matching with an overturning transfer mechanism, converting the ignition coil from the state that the sheath assembly is arranged below and the shell assembly is arranged above into the state that the sheath assembly is arranged below and the shell assembly is arranged below, arranging work stations for ignition coil aging detection, ignition coil performance detection, ignition coil jack probe detection and sheath inner wall oil coating beside a detection circulating conveying line, and sequentially circulating the ignition coil at each detection work station by utilizing the detection circulating conveying line to fully utilize the ignition coil in the state that the sheath assembly is arranged above and the shell assembly is arranged below, and simultaneously realize the recycling of the detection jig; the detection efficiency of the ignition coil is greatly improved; the overall layout is compact.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an ignition coil high efficiency automatic assembly detects assembly line which characterized in that: the ignition coil assembling device comprises an ignition coil assembling unit, a detection circulating conveying line which is arranged in a shape like a Chinese character 'hui', an overturning and transferring module which is used for receiving the ignition coil output by the ignition coil assembling unit and overturning the ignition coil up and down by 180 degrees, a detection loading and carrying mechanism which is used for taking the ignition coil out of the overturning and transferring module and placing the ignition coil on the detection circulating conveying line, a laser coding unit, a code reading unit, an aging test unit, a performance test unit, a jack probe detection unit, a sheath oil coating unit, a scanning unbinding unit and a blanking unit which are sequentially arranged along the conveying direction of the detection circulating conveying line; a plurality of detection jigs are circularly conveyed on the detection circular conveying line; and a sheath height detection unit, a rubber surface height detection unit and a spring presence detection unit are arranged in the ignition coil assembly unit.

2. The ignition coil high-efficiency automatic assembly detection line of claim 1, characterized in that: the ignition coil assembling unit comprises a rotating disc, an assembling jig, a shell assembly feeding station, a sheath feeding assembling station, a sheath height detecting station, a rubber surface height detecting station, a spring existence detecting station and an assembly blanking station, wherein the rotating disc performs rotating motion, the assembling jig is arranged on the rotating disc at an equal angle, the shell assembly feeding station, the sheath feeding assembling station, the sheath height detecting station, the rubber surface height detecting station, the spring existence detecting station and the assembly blanking station are arranged around the rotating disc, a shell assembly feeding unit is arranged at the shell assembly feeding station, and a sheath assembling unit and a sheath feeding and feeding unit are arranged at the sheath feeding assembling station; the sheath height detection unit is arranged at the sheath height detection station, the rubber surface height detection unit is arranged at the rubber surface height detection station, and the spring presence detection unit is arranged at the spring presence detection station.

3. The ignition coil high-efficiency automatic assembly detection line of claim 2, characterized in that: ignition coil equipment unit still includes unloading robot press from both sides in the casing subassembly feed unit and get the casing subassembly and place among the equipment tool of casing subassembly material loading station department, and will assembly spare clamp in the equipment tool of subassembly unloading station department gets out and realizes the unloading.

4. The ignition coil high-efficiency automatic assembly detection line of claim 3, characterized in that: the utility model discloses a transfer robot, including unloading robot, transfer supporting platform, unloading robot, ignition coil, upset transfer module, transfer supporting platform, the subassembly unloading station department is provided with the transfer supporting platform, the unloading robot presss from both sides and gets the ignition coil of equipment and places on the transfer supporting platform, the upset is moved the module setting on one side, presss from both sides and gets ignition coil on the transfer supporting platform and 180 back of upset move extremely detect material loading handling mechanism below.

5. The ignition coil high-efficiency automatic assembly detection line according to any one of claims 2 to 4, characterized in that: the sheath assembling unit comprises a pressing module located above the assembling jig, a sheath bearing seat located below the rotating disc, a second motor driving the sheath bearing seat to perform rotary motion, a third motor driving the sheath bearing seat to perform up-and-down motion and a second cylinder driving the sheath bearing seat to perform horizontal movement.

6. The ignition coil high-efficiency automatic assembly detection line of claim 2, characterized in that: the spring existence detection unit comprises a sixth air cylinder and an annular proximity sensor, wherein the sixth air cylinder is located below the rotating disc, and the annular proximity sensor is driven by the sixth air cylinder to move up and down.

7. The ignition coil high-efficiency automatic assembly detection line of claim 1, characterized in that: the detection circulating conveying line comprises a first conveying line and a second conveying line which are arranged in parallel and have opposite conveying directions, and a jig transverse moving module which is arranged at two ends of the first conveying line and the second conveying line and is used for realizing the transfer of the detection jig between the first conveying line and the second conveying line; the laser coding unit is arranged on one side of the first conveying line, the code reading unit, the aging test unit, the performance test unit, the jack probe detection unit, the sheath oiling unit, the scanning unbinding unit and the blanking unit are arranged on the other opposite side of the second conveying line.

8. The ignition coil high-efficiency automatic assembly detection line of claim 7, characterized in that: cache stations are arranged on the second conveying line at the upstream and the downstream of the aging test unit, and a second stopping module is arranged at each cache station; and the buffer station stores the single detection jig together in turn by matching the second stop module with the second conveying line to form a detection jig module, and then enters the aging test unit for aging test synchronously by taking the detection jig module as a unit.

9. The ignition coil high-efficiency automatic assembly detection line of claim 8, characterized in that: the code reading unit is arranged at the cache station and is used for sequentially reading codes of the detection jigs at the cache station;

the code reading unit comprises a sixth motor and a code scanner driven by the sixth motor to move along the second conveying line.

10. The ignition coil high-efficiency automatic assembly detection line of any one of claims 1, 7 to 9, characterized in that: the aging test unit comprises a plurality of sub-modules; the sub-module comprises a first jacking module for jacking the detection jig upwards to a set height, a first inserting module which is positioned above the detection jig and is inserted into the end part of the sheath assembly, a second inserting module which is inserted into the jack at the position of the shell assembly, and a third stopping module for stopping the detection jig from moving;

11. The ignition coil high-efficiency automatic assembly detection line of any one of claims 1, 7 to 9, characterized in that: the jack probe detection unit comprises a fourth blocking and stopping module for blocking the detection jig to move forwards, a third jacking module for jacking the detection jig upwards to separate from the conveying line, a detection camera for acquiring jack picture information at the position of the shell assembly, a seventh motor for driving the detection camera to adjust the pitching angle, and a first transfer module for driving the detection camera to move up and down and horizontally.

12. The ignition coil high-efficiency automatic assembly detection line of any one of claims 1, 7 to 9, characterized in that: the sheath oiling unit comprises a fourth jacking module, a fifth blocking and stopping module, an axial limiting block for limiting the peripheral position of the sheath assembly, a fourteenth air cylinder for driving the axial limiting block to move horizontally, a port clamping block matched with the axial limiting block for limiting the port position at the top end of the sheath, a fifteenth air cylinder for driving the port clamping block to move horizontally, an oil nozzle positioned above the detection jig, and a second transfer module for driving the oil nozzle to move horizontally and vertically.

13. An ignition coil efficient automatic assembly detection method is characterized in that: it includes:

s1) assembling an ignition coil:

s11) feeding and loading of the shell assembly: automatically clamping the shell assembly, and placing the shell assembly into an assembly jig in a state that the inserting part inserted into the sheath is in a downward state;

s12) feeding and feeding of the sheath assembly: the automatic clamping sheath assembly is arranged in the sheath bearing seat in an axial vertical state;

s13) assembling the shell assembly and the sheath assembly: pressing the upper surface of the shell assembly in the assembling jig, driving the sheath bearing seat to bear the sheath assembly and move to the position below the assembling jig, and realizing opposite insertion assembly with the shell assembly in a rotating and lifting mode to obtain an ignition coil;

s2) sheath assembling in-place detection: detecting whether the sheath component is inserted in place with the shell component;

s4) detecting whether a spring in the sheath assembly exists or not: an annular proximity sensor is used for moving from bottom to top on the sheath assembly in a sleeved mode, and whether a spring in the sheath is still in the sheath is detected;

s7) detecting the code reading binding of the jig: scanning the bar code of each detection jig on the detection circulating conveying line, and binding the bar code information of the detection jig with the laser coding information of the ignition coil on the detection circulating conveying line;

s11) coating oil in the sheath: accurately positioning the position of the sheath assembly, keeping the axis of the sheath assembly in a vertical state, and extending an oil nozzle into the sheath to automatically coat the inner wall of the sheath;

s12) scanning and unbinding: scanning the laser coding information on the ignition coil, and removing the binding relationship between the laser coding information and the bar code information of the corresponding detection jig;