Automobile door lock assembly production line and production process

Abstract

The application discloses an automobile door lock assembly production line and a production process, which comprises a first assembly unit for assembling a base plate and a first connecting rod assembly together to obtain a base plate connecting rod assembly, a second assembly unit for assembling the base plate connecting rod assembly and a second connecting rod assembly together to obtain a base plate connecting rod module, a third assembly unit for realizing actuator assembly and handle assembly, a fourth assembly unit for assembling the base plate connecting rod module, the actuator and the handle assembly together to obtain a semi-finished product assembly, a fifth assembly unit for assembling a switch wire and a connecting rod on the semi-finished product assembly to obtain an automobile door lock and a plurality of conveying lines. The application can realize semi-automatic assembly of the automobile door lock, is compatible with automobile door locks of various models, automobile door locks of the same model located at different positions of an automobile, has high compatibility, is high in production efficiency and guarantees product quality.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile door lock assembly equipment, in particular to an automobile door lock assembly production line and production process. BACKGROUND

[0002] The automobile door lock is a very complex product structure, and generally contains a front left automobile door lock, a front right automobile door lock, a rear left automobile door lock and a rear right automobile door lock in the same automobile. Therefore, for the automobile door lock assembly production line, it needs to be compatible with the assembly requirements of the above four automobile door locks. And the automobile door lock structures of different automobiles are different. If the maximum utilization rate of the production line is to be improved, the compatibility problem of assembling different models of automobile door locks needs to be considered.

[0003] At present, there is a kind of automobile door lock, which includes a base plate, a first connecting rod assembly, a second connecting rod assembly, an actuator, a handle assembly, a plurality of connecting rods connecting part of the connecting rod assembly or the second connecting rod assembly and the handle assembly, and a switch wire. And the first connecting rod assembly and the second connecting rod assembly contain a plurality of connecting rod plates, tooth plates and other structures. Many connecting rod plates are also connected together by springs to realize linkage. The overall structure is complex and difficult to realize full automation production. Therefore, at present, most of them are assembled manually, which is time-consuming and laborious and has low efficiency. In addition, there is a lack of assembly quality detection at each assembly link, and the product assembly yield cannot be guaranteed.

[0004] Therefore, it is necessary to provide a new automobile door lock assembly production line and production process to solve the above technical problems. SUMMARY

[0005] The main purpose of the present application is to provide an automobile door lock assembly production line and production process, which can realize the semi-automatic assembly of automobile door locks, and can be compatible with a plurality of different models of automobile door locks, automobile door locks located at different positions of the same model of automobile door locks, high compatibility, high production efficiency and guaranteed product quality.

[0006] The present application realizes the above-mentioned purpose through the following technical scheme: an automobile door lock assembly production line, comprising:

[0007] A first assembly unit assembles the base plate and the first connecting rod assembly together to obtain a base plate connecting rod assembly, and comprises a first turntable, a first jig arranged at equal angles around the first turntable, a first feeding station, a first carrying and oiling mechanism, a first detection mechanism, a first screw locking mechanism and a carrying and detection mechanism arranged in sequence around the first turntable;

[0008] The second assembling unit assembles the substrate link assembly and the second link assembly together to obtain a substrate link module, and comprises a second rotary table, second jigs arranged at equal angles around the second rotary table, a second feeding station, a third feeding station, a first rivet pressing mechanism, a rivet pressing detection mechanism, a second detection mechanism and a second carrying and oiling mechanism arranged in sequence around the second rotary table;

[0009] The third assembling unit is used for completing the assembly of the actuator and the handle assembly, and comprises an actuator assembling device and a handle assembly assembling device.

[0010] The fourth assembling unit assembles the substrate link module, the actuator and the handle assembly together to obtain a semi-finished product assembly, and comprises a fourth jig for carrying the substrate link module, the actuator and the handle assembly, a first driving member for driving the fourth jig to move between a feeding and discharging station and a screw locking detection station, and a screw locking detection mechanism arranged at the screw locking detection station.

[0011] The fifth assembling unit is used for completing the locking installation of the switch wire and the link, and comprises a fifth jig for supporting and positioning the semi-finished product assembly, a third feeding box for supplying the switch wire and the link, a second pressing module arranged beside the fifth jig and used for pressing and fixing the semi-finished product assembly on the fifth jig, and a second hand-held screw gun used for locking the installation of the switch wire on the semi-finished product assembly.

[0012] The first conveying line connects the first assembling unit and the second assembling unit.

[0013] The second conveying line connects the third assembling unit and the fourth assembling unit.

[0014] The third conveying line connects the second assembling unit and the second conveying line.

[0015] The fourth conveying line connects the fourth assembling unit and the fifth assembling unit.

[0016] Further, the first jigs are arranged side by side and comprise first carrying positions for carrying the first link assemblies and second carrying positions for carrying the substrates, the first carrying positions are provided with first positioning support blocks for supporting each component in the first link assembly in an assembled state and a plurality of first positioning support columns for supporting the substrates, and the second carrying positions are provided with a plurality of second positioning support columns for supporting the substrates.

[0017] Further, the first carrying and oiling mechanism comprises an XYZ-axis module, a first support plate arranged at the movable end of the XYZ-axis module, a first suction module fixed on the first support plate and used for picking up the substrate, and a first oiling module fixed on the first support plate and used for oiling.

[0018] Further, the first detection mechanism comprises a third cylinder, a third support plate driven by the third cylinder to move up and down, a second camera and a first height detection module fixed on the third support plate.

[0019] Further, the second jig is provided with an assembly bearing area and a part bearing area; the assembly bearing area is provided with a second positioning support block supporting the second linkage assembly in an assembled state and a plurality of third positioning support columns supporting the substrate linkage assembly; and the part bearing area is provided with a plurality of third positioning support blocks supporting individual parts in the second linkage assembly.

[0020] Further, the pressure riveting detection mechanism comprises a fifth camera detecting whether the riveting position of the substrate linkage assembly and the second linkage assembly is correctly riveted, a third height detection module detecting whether the setpoint height of the substrate linkage module meets the requirements, a sixth camera detecting whether the rivets are correctly placed in the part bearing area, and a second pressure riveting mechanism for pressure riveting the rivets in the part bearing area; and the second carrying and oiling mechanism comprises a first multi-axis robot, a fifth support plate arranged at the movable end of the first multi-axis robot, a third suction module arranged on the fifth support plate, and a second oiling module arranged on the fifth support plate.

[0021] Further, the actuator assembly device comprises a first feeding box, a third jig bearing the actuator, a sixth cylinder driving the third jig to move horizontally between a first working position and a second working position, an actuator oiling mechanism arranged above the second working position and used for oiling the actuator parts in the third jig, and a first handheld screw gun for locking screws of the actuator at the first working position.

[0022] Further, the handle assembly assembling device comprises a second feeding box for supplying various parts of the handle assembly and a handle pin assembling mechanism for assembling the long pins on both sides of the handle assembly into the handle assembly body; the handle pin assembling mechanism comprises a first bearing seat, a first pressing mold set for fixing and pressing the handle assembly on the first bearing seat, a pin support mold set for bearing the long pins on the opposite sides of the first bearing seat, a pin pushing mold set for pushing the long pins on the pin support mold set into the handle assembly on the first bearing seat, and a spring lifting mold set located below the first bearing seat and used for lifting the second spring at the bottom of the handle assembly to an assembling height position before the pin pushing.

[0023] Further, the pin support mold set comprises an eighth cylinder, a pin support seat driven by the eighth cylinder to move up and down, and a fourth sensor for detecting whether there is a pin on the pin support seat; the pin pushing mold set comprises a ninth cylinder, a seventh support plate driven by the ninth cylinder to move in a first direction, a tenth cylinder and a guide sleeve fixed on the seventh support plate, and a pushing top rod driven by the tenth cylinder to move in the first direction and passing through the guide sleeve; the spring lifting mold set comprises an eleventh cylinder, an eighth support plate driven by the eleventh cylinder to move up and down, a spring support block provided on the eighth support plate and bearing the main part of the second spring, and spring end limiting blocks elastically floating up and down on the eighth support plate and used for limiting the positions of the two extension sections of the second spring.

[0024] Further, a pushing mold set is arranged at the lock screw detection station to avoid position interference with the fourth jig driving knob; the fourth jig comprises a jig bottom plate, fourth, fifth and sixth positioning support blocks arranged on the jig bottom plate and respectively supporting the executor, the handle assembly and the base plate connecting rod set in the assembling state, a movable plate slidingly arranged on the jig bottom plate in the Y direction, and a pair of limiting columns arranged on the movable plate; when the handle assembly is placed on the fifth positioning support block, the knob is located between the two limiting columns; the pushing mold set is arranged corresponding to the position of the movable plate and comprises a twelfth cylinder and a pushing rod driven by the twelfth cylinder to move the movable plate in the Y direction.

[0025] Further, the lock screw detection mechanism comprises a second driving member, a third driving member driven by the second driving member to move in the Y direction, a ninth support plate driven by the third driving member to move up and down, a fourth height detection mold set and a second lock screw mechanism arranged on the ninth support plate.

[0026] Further, the first detection unit downstream of the fifth assembly unit and used for detecting whether the PIN pin in the automobile door lock power plug is assembled correctly is further included; the first detection unit includes a fourth driving member, a tenth supporting plate driven by the fourth driving member to move along the Y direction, a sixth jig and a plug probe detection module arranged on the tenth supporting plate, and a fifth height detection module for detecting the height of the specified position of the automobile door lock on the sixth jig; the plug probe detection module includes a plug fixing seat for fixing the power plug to be detected, a fourteenth air cylinder below the plug fixing seat, an eleventh supporting plate driven by the fourteenth air cylinder to move up and down, a plurality of elastic probes elastically and floatingly arranged on the eleventh supporting plate and capable of being inserted into the inside of the power plug on the plug fixing seat, and a sixth sensor arranged on the eleventh supporting plate and used for detecting the extension and retraction of the elastic probes.

[0027] Another object of the present application is to provide a production process realized based on the automobile door lock assembly production line as described above, which includes the following steps:

[0028] S1, base plate connecting rod assembly assembly: placing each part of the first connecting rod assembly in the assembled state on the first bearing position of the first jig at the first feeding station, placing the base plate on the second bearing position of the first jig; the first carrying and oiling mechanism lubricates the specified parts in the first connecting rod assembly, carries the base plate to the first bearing position, and assembles the base plate with the first connecting rod assembly together; the first detection mechanism detects whether the base plate and the first connecting rod assembly are correctly assembled; the first screw locking mechanism locks the base plate and the first connecting rod assembly together with screws to obtain the base plate connecting rod assembly; the carrying and detecting mechanism detects the height of the specified point in the base plate connecting rod assembly, and takes out the base plate connecting rod assembly from the first jig for discharging; if the height detection of the base plate connecting rod assembly is qualified, the base plate connecting rod assembly is placed on the first conveying line and flows into the second assembly unit;

[0029] S2, base plate connecting rod module assembly:

[0030] S21, at the second feeding station and the third feeding station:

[0031] each part in the part bearing area of the second jig is placed on the assembly bearing area of the second jig according to the assembly state of the second connecting rod assembly;

[0032] a new set of each part of the second connecting rod assembly is taken out and placed separately on the part bearing area of the second jig one by one;

[0033] the base plate connecting rod assembly is placed on the assembly bearing area according to the assembly state of the second connecting rod assembly;

[0034] S22, The first riveting mechanism rivets the substrate connecting rod assembly and the second connecting rod assembly together to form a substrate connecting rod module;

[0035] S23. The riveting inspection mechanism checks whether the height of the set point on the board connecting rod module meets the requirements, and performs local riveting on the rivets placed on the bearing area of ​​the parts.

[0036] S24. The second inspection mechanism inspects whether the rivets placed on the bearing area of ​​the part are properly pressed and whether the rivets in the base plate connecting rod module are properly pressed and riveted.

[0037] S25. The second conveying and oiling mechanism applies oil to the components in the second connecting rod assembly and removes the substrate connecting rod module from the second fixture. If the substrate connecting rod module passes the inspection, it is placed on the third conveyor line and flows to the second conveyor line.

[0038] S3, Actuator and Handle Assembly:

[0039] S31. Actuator Assembly: At the first working position, the operator takes out some parts of the actuator, including the first housing of the actuator, from the first feed box and places them in the third fixture in the assembled state. Then the third fixture moves to the second working position, and the actuator oiling mechanism oils the designated parts in the actuator. Then the third fixture returns to the first working position, and the operator takes out the second housing of the actuator from the first feed box and fastens it together with the first housing. Then, the operator uses a first handheld screwdriver to fasten and fix the first housing and the second housing with screws to complete the assembly of the actuator.

[0040] S32. Handle assembly assembly: The operator takes out the long pin from the second feed box and places it on the pin support module, and takes out the second spring and places it on the spring lifting module. Then, the operator takes out the other parts and assembles the handle assembly body together according to the assembly relationship. Then, the operator places it on the first support seat and uses the pin pushing module to assemble the long pin into the assembly hole in the handle assembly. The long pin passes through the second spring at the same time.

[0041] S33. Place the actuator and handle assembly onto the second conveyor line, which flows to the fourth assembly unit;

[0042] S4, semi-finished product assembly assembly: at the feeding and discharging station, the operator places the actuator, handle assembly and base plate connecting rod module in the fourth jig; the first driving member drives the fourth jig to move to the screw locking detection station, the screw locking detection mechanism locks the actuator and the base plate connecting rod module together with screws, and locks the handle assembly and the base plate connecting rod module together with screws to obtain a semi-finished product assembly; and the locking height of the actuator and the base plate connecting rod module and the locking height of the handle assembly and the base plate connecting rod module are detected; finally, the operator takes the semi-finished product assembly from the fourth jig, and if the semi-finished product assembly is qualified, places it on the fourth conveying line and conveys it to the fifth assembly unit;

[0043] S5, switch wire and connecting rod assembly: the operator takes the semi-finished product assembly from the fourth conveying line and places it on the fifth jig, and fixes it tightly with the second pressing module, then takes the switch wire from the third feeding box and locks it tightly with the second handheld screw gun, and then takes the connecting rod and assembles it to the semi-finished product assembly according to the design requirements to obtain an automobile door lock.

[0044] Compared with the prior art, the automobile door lock assembly production line and production process has the beneficial effects that: the operator assembles the base plate and the first connecting rod assembly together in the first assembly unit, realizing the assembly of the base plate connecting rod assembly; the assembled base plate connecting rod assembly is conveyed to the second assembly unit through the conveying line, and the base plate connecting rod assembly and the second connecting rod assembly are assembled together in the second assembly unit, realizing the assembly of the base plate connecting rod module; the assembly of the actuator and the handle assembly is completed in the third assembly unit; then the base plate connecting rod module, the handle assembly and the actuator are conveyed to the fourth assembly unit through the conveying line, and the base plate connecting rod module, the handle assembly and the actuator are assembled together in the fourth assembly unit, realizing the assembly of the semi-finished product assembly; the semi-finished product assembly is conveyed to the fifth assembly unit through the conveying line, and the connecting rod and the switch wire are assembled to the semi-finished product assembly in the fifth assembly unit, thereby realizing the assembly of the automobile door lock; the production line realizes the semi-automatic assembly of the automobile door lock, and can be compatible with multiple different models of automobile door locks, automobile door locks located at different positions of the same model of automobile door locks, and has high compatibility and high production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 It is a top view structural schematic diagram of the embodiment of the application;

[0046] Figure 2 It is a top view structural schematic diagram of the first assembly unit in the embodiment of the application;

[0047] Figure 3 It is a structural schematic diagram of the first jig in the embodiment of the application;

[0048] Figure 4Structure diagram of the first carrying and oiling mechanism and the first jig in the embodiment of the present application;

[0049] Figure 5 Structure diagram of the first carrying and oiling mechanism in the embodiment of the present application;

[0050] Figure 6 Structure diagram of the first detection mechanism in the embodiment of the present application;

[0051] Figure 7 Structure diagram of the carrying and detection mechanism and the first conveying line in the embodiment of the present application;

[0052] Figure 8 Structure diagram of the carrying and detection mechanism in the embodiment of the present application;

[0053] Figure 9 Top view structure diagram of the second assembling unit in the embodiment of the present application;

[0054] Figure 10 Structure diagram of the second jig in the embodiment of the present application;

[0055] Figure 11 Structure diagram of the rivet detection mechanism in the embodiment of the present application;

[0056] Figure 12 Structure diagram of the rivet and the first spring in the embodiment of the present application;

[0057] Figure 13 Structure diagram of the second carrying and oiling mechanism in the embodiment of the present application;

[0058] Figure 14 Structure diagram of the third assembling unit in the embodiment of the present application;

[0059] Figure 15 Structure diagram of the actuator oiling mechanism and the fourth jig in the embodiment of the present application;

[0060] Figure 16 Structure diagram of the handle pin assembling mechanism in the embodiment of the present application;

[0061] Figure 17 Partial exploded structure diagram of the handle assembly in the embodiment of the present application;

[0062] Figure 18 Partial structure diagram of the handle pin assembling mechanism in the embodiment of the present application;

[0063] Figure 19 Structure diagram of the fourth assembling unit in the embodiment of the present application;

[0064] Figure 20Structure schematic diagram of a first transfer module in an embodiment of the present application;

[0065] Figure 21 Structure schematic diagram of a fourth jig in an embodiment of the present application;

[0066] Figure 22 Structure schematic diagram of a fifth assembly unit in an embodiment of the present application;

[0067] Figure 23 Structure schematic diagram of a fifth assembly unit in an embodiment of the present application;

[0068] Figure 24 Structure schematic diagram of an automobile door lock in an embodiment of the present application;

[0069] Figure 25 Structure schematic diagram of a first detection unit in an embodiment of the present application;

[0070] Figure 26 Structure schematic diagram of a plug probe detection module in an embodiment of the present application;

[0071] Figure 27 Structure schematic diagram of a second detection unit in an embodiment of the present application;

[0072] Figure 28 Structure schematic diagram of a detection unit in an embodiment of the present application;

[0073] Figure 29 Structure schematic diagram of a first load detection module in an embodiment of the present application;

[0074] Figure 30 Structure schematic diagram of a second load detection module in an embodiment of the present application;

[0075] Figure 31 Structure schematic diagram of a first drive detection module in an embodiment of the present application;

[0076] Figure 32 Structure schematic diagram of a first, second, and third connecting rod shaft and a first lever in an embodiment of the present application;

[0077] Figure 33 Structure schematic diagram of a handle lever module and a knob lever module in an embodiment of the present application;

[0078] Figure 34 Structure schematic diagram of a second, third, and fourth lever in an embodiment of the present application;

[0079] Figures in the drawings represent:

[0080] 100 - automobile door lock assembly production line;

[0081] 200 - car door lock, 201 - base plate, 202 - first linkage assembly, 2021 - inner lock catch, 203 - second linkage assembly, 2031 - rivet, 2032 - first spring, 2033 - first linkage plate, 2034 - second linkage plate, 2035 - third linkage plate, 204 - actuator, 205 - handle assembly, 2051 - long pin, 2052 - second spring, 2053 - knob, 2054 - handle, 206 - switch wire, 207 - linkage, 210 - base plate linkage assembly, 220 - base plate linkage module, 230 - semi-finished product assembly;

[0082] 1 - first assembly unit, 11 - first rotary table, 12 - first jig, 121 - first bearing position, 1211 - first positioning support block, 1212 - first positioning support column, 122 - second bearing position, 1221 - second positioning support column, 13 - first carrying and oiling mechanism, 131 - XYZ axis module, 132 - first support plate, 133 - first suction module, 1331 - first air cylinder, 1332 - second support plate, 1333 - first suction nozzle, 1334 - positioning needle, 134 - first oiling module, 1341 - second air cylinder, 1342 - oiling head, 135 - code scanner, 14 - first detection mechanism, 141 - third air cylinder, 142 - third support plate, 143 - second camera, 144 - height detection probe, 145 - first sensor, 15 - first screw locking mechanism, 16 - carrying and detection mechanism, 161 - XY axis module, 162 - fourth support plate, 163 - second suction module, 1631 - fourth air cylinder, 1632 - second suction nozzle, 164 - second height detection module, 1641 - fifth air cylinder, 1642 - second sensor, 17 - first camera, 18 - first NG box;

[0083] 2 - second assembly unit, 21 - second rotary table, 22 - second jig, 221 - assembly bearing area, 2211 - second positioning support block, 2212 - third positioning support column, 222 - part bearing area, 2221 - third positioning support block, 23 - first riveting mechanism, 24 - riveting detection mechanism, 241 - fifth camera, 242 - third height detection module, 2421 - seventeenth air cylinder, 2422 - third sensor, 243 - sixth camera, 244 - second riveting mechanism, 25 - second detection mechanism, 26 - second carrying and oiling mechanism, 261 - first multi-axis robot, 262 - fifth support plate, 263 - third suction module, 264 - second oiling module, 27 - third camera, 28 - fourth camera, 29 - second NG box;

[0084] 3 - third assembly unit, 31 - first feeding box, 32 - third jig, 33 - sixth cylinder, 34 - executor oil injection mechanism, 341 - seventh cylinder, 342 - sixth support plate, 343 - elastic pressing block, 344 - oil injection nozzle, 35 - first handheld screw gun, 36 - handle pin assembly mechanism, 361 - first bearing seat, 362 - first pressing die set, 363 - pin support die set, 3631 - eighth cylinder, 3632 - pin support seat, 3633 - fourth sensor, 364 - pin pushing die set, 3641 - ninth cylinder, 3642 - seventh support plate, 3643 - tenth cylinder, 3644 - guide sleeve, 3645 - pushing top rod, 365 - spring lifting die set, 3651 - eleventh cylinder, 3652 - eighth support plate, 3653 - spring support block, 3654 - spring end limit block;

[0085] 4 - fourth assembly unit, 41 - double-station transfer mechanism, 411 - first transfer die set, 4111 - first driving member, 4112 - fourth jig, 41121 - jig bottom plate, 41122 - fifth positioning support block, 41123 - sixth positioning support block, 41124 - movable plate, 41125 - limiting upright column, 41126 - fourth positioning support block, 412 - second transfer die set, 413 - seventh camera, 414 - pushing die set, 4141 - twelfth cylinder, 4142 - pushing rod, 42 - lock screw detection mechanism, 421 - second driving member, 422 - third driving member, 423 - ninth support plate, 424 - fourth height detection die set, 425 - second lock screw mechanism;

[0086] 5 - fifth assembly unit, 51 - fifth jig, 52 - third feeding box, 53 - second pressing die set, 54 - second handheld screw gun, 55 - scratch-preventing shielding die set;

[0087] 6 - first detection unit, 61 - fourth driving member, 62 - tenth support plate, 63 - sixth jig, 64 - plug probe detection die set, 641 - plug fixing seat, 642 - fourteenth cylinder, 643 - eleventh support plate, 644 - elastic probe, 645 - sixth sensor, 65 - fifth height detection die set, 651 - XZ-axis transfer die set, 652 - ninth sensor;

[0088] 7-Second detection unit, 71-Second bearing seat, 72-Third compression module, 73-First load detection module, 731-First support shaft, 732-Twelfth support plate, 733-First telescopic rod, 734-First detection plate, 735-Seventh sensor, 736-First counterweight, 737-First connecting rod shaft, 738-First connecting block, 7381-Relief groove, 74-Second load detection module, 741-Second support shaft, 742-Thirteenth support plate, 743-Second telescopic rod, 744-Second detection plate, 745-Eighth sensor, 746-Second counterweight, 747-Second connecting rod shaft, 748-Second connecting block, 75-First drive detection module, 751-Sliding rail, 752-Sliding block, 753-Third support shaft, 754-Fourteenth support plate, 755-First electric cylinder, 756-Third telescopic rod, 757-Third connecting rod shaft, 758-Third connecting block, 76-Second drive detection module, 761-Second electric cylinder, 762-Fifteenth support plate, 763-First pressure sensor, 764-Sixteenth support plate, 765-First lever, 77-Inner lock catch lever module, 771-Third electric cylinder, 772-Seventeenth support plate, 773-Second pressure sensor, 774-Eighteenth support plate, 775-Nineteenth support plate, 776-Second lever, 78-Handle lever module, 781-Fourth electric cylinder, 782-Twentieth support plate, 783-Third pressure sensor, 784-Twenty-first support plate, 785-Third lever, 79-Knob lever module, 791-Fifteenth cylinder, 792-Twenty-second support plate, 793-Twenty-third support plate, 794-Sixteenth cylinder, 795-Twenty-fourth support plate, 796-Fourth lever, 710-Fourth support shaft, 711-X-axis load moving module, 712-Twenty-fifth support plate;

[0089] 8-First conveying line; 9-Second conveying line; 10-Third conveying line; 20-Fourth conveying line. DETAILED DESCRIPTION

[0090] Example One

[0091] Please refer to Figures 1-34The embodiment is an automobile door lock assembly production line 100 for assembling an automobile door lock 200, the automobile door lock 200 comprising a base plate 201, a first connecting rod assembly 202, a second connecting rod assembly 203, an actuator 204, a handle assembly 205, a switch wire 206 and a connecting rod 207. The first connecting rod assembly 202 comprises an inner lock catch 2021; the second connecting rod assembly 203 comprises a rivet 2031, a first spring 2032, a first connecting rod plate 2033, a second connecting rod plate 2034 and a third connecting rod plate 2035; the handle assembly 205 comprises a long pin 2051, a second spring 2052, a handle 2054, and some handle assemblies 205 further comprise a knob 2053.

[0092] The automobile door lock assembly production line 100 comprises a first assembly unit 1 for assembling the base plate 201 and the first connecting rod assembly 202 to obtain a base plate connecting rod assembly 210, a second assembly unit 2 for assembling the base plate connecting rod assembly 210 and the second connecting rod assembly 203 to obtain a base plate connecting rod module 220, a third assembly unit 3 for assembling the actuator 204 and the handle assembly 205, a fourth assembly unit 4 for assembling the base plate connecting rod module 220, the actuator 204 and the handle assembly 205 to obtain a semi-finished product assembly 230, a fifth assembly unit 5 for assembling the switch wire 206 and the connecting rod 207 on the semi-finished product assembly 230 to obtain the automobile door lock 200, a first detection unit 6 for detecting setting item contents of the automobile door lock 200, a second detection unit 7 for detecting another setting item contents of the automobile door lock 200, a first conveying line 8 connecting the first assembly unit 1 and the second assembly unit 2, a second conveying line 9 connecting the third assembly unit 3 and the fourth assembly unit 4, a third conveying line 10 connecting the second assembly unit 2 and the second conveying line 9, and a fourth conveying line 20 connecting the fourth assembly unit 4 and the fifth assembly unit 5.

[0093] In order to save the area occupied by the whole production line, the automobile door lock assembly production line 100 is arranged in a U-shaped layout, wherein the first assembly unit 1, the second assembly unit 2 and the third assembly unit 3 are sequentially arranged along the X direction to form a first branch line, the fifth assembly unit 5, the first detection unit 6 and the second detection unit 7 are sequentially arranged along the X direction to form a second branch line, and the fourth assembly unit 4 is arranged at the same end of the first branch line and the second branch line and forms a U-shaped layout together with the first branch line and the second branch line.

[0094] The first assembly unit 1 comprises a first rotary table 11, a first jig 12 arranged at equal angles on the first rotary table 11, a first feeding station, a first carrying and oiling mechanism 13, a first detection mechanism 14, a first screw locking mechanism 15 and a carrying and detection mechanism 16 arranged in sequence around the first rotary table 11. The first feeding station is used for feeding the first connecting rod assembly 202 and the base plate 201; the first carrying and oiling mechanism 13 is used for oiling the specified position of the specified part in the first connecting rod assembly 202 and assembling the base plate 201 and the first connecting rod assembly 202 together; the first detection mechanism 14 is used for detecting whether the base plate 201 and the first connecting rod assembly 202 are correctly assembled; the first screw locking mechanism 15 is used for locking the base plate 201 and the first connecting rod assembly 202 together by screws to obtain the base plate connecting rod assembly 210; the carrying and detection mechanism 16 is used for detecting the surface height of the specified position of the base plate in the base plate connecting rod assembly 210 after the screw locking, so as to detect whether the assembly of the base plate connecting rod assembly 210 meets the requirements, and take out the base plate connecting rod assembly 210 from the first jig 12 for discharging. If the base plate connecting rod assembly 210 is qualified, it is carried to the first conveying line 8 and flows into the second assembly unit 2; if it is unqualified, it is discharged into the first NG box 18.

[0095] The first jig 12 is provided with a first bearing position 121 for bearing the first connecting rod assembly 202 and the base plate 201 and a second bearing position 122 for bearing the base plate 201 side by side, the first bearing position 121 is provided with a first positioning support block 1211 for supporting each part in the first connecting rod assembly 202 in the assembled state and a plurality of first positioning support columns 1212 for supporting the base plate 201, and the second bearing position 122 is provided with a plurality of second positioning support columns 1221 for supporting the base plate 201. The first camera 17 is arranged above the first feeding station. The operator places each part in the first connecting rod assembly 202 on the first positioning support block 1211 in the assembled state and places the base plate 201 on the second bearing position 122 in the same posture as the first connecting rod assembly 202 on the first bearing position 121, and supports and positions the base plate 201 by the plurality of second positioning support columns 1221. After the first connecting rod assembly 202 and the base plate 201 are placed, the operator starts the equipment button, and the first camera 17 detects whether the first connecting rod assembly 202 on the first bearing position 121 and the base plate 201 on the second bearing position 122 are correctly placed.

[0096] The first jig 12 is installed on the first rotary table 11 in a quick change mode, and can be quickly switched for different models of automobile door locks and four types of products of front left, front right, rear left and rear right of the same model of automobile door locks.

[0097] The first carrying and oiling mechanism 13 comprises an XYZ axis module 131, a first support plate 132 arranged at the movable end of the XYZ axis module 131, a first suction module 133 fixed on the first support plate 132 and used for picking up the substrate 201, a first oiling module 134 fixed on the first support plate 132 and used for oiling, and a code scanner 135 fixed on the first support plate 132. The first suction module 133 comprises a first cylinder 1331 fixed on the first support plate 132, a second support plate 1332 driven by the first cylinder 1331 to move up and down, a plurality of first suction nozzles 1333 arranged on the second support plate 1332, and a positioning needle 1334 elastically floating up and down on the second support plate 1332. The first suction nozzles 1333 are used for suctioning the body of the substrate 201, and the positioning needle 1334 is used for inserting into the corresponding hole on the substrate 201 to achieve accurate positioning of the substrate. When the substrate 201 is assembled with the first linkage assembly 202, the positioning needle 1334 extends into the corresponding shaft hole of the first linkage assembly 202, thereby providing position accuracy for accurate assembly of the substrate 201 and the first linkage assembly 202. The first oiling module 134 comprises a second cylinder 1341 fixed on the first support plate 132 and an oiling head 1342 driven by the second cylinder 1341 to move up and down. The code scanner 135 is used for scanning the identification on the substrate 201, so as to encode the substrate 201, input information of various production parameters, and bind the code and the production parameter information, so as to facilitate subsequent production tracing.

[0098] The first detection mechanism 14 comprises a third cylinder 141, a third support plate 142 driven by the third cylinder 141 to move up and down, a second camera 143 fixed on the third support plate 142, and a first height detection module (not labeled in the figure). The first height detection module comprises a height detection probe 144 elastically floating up and down on the third support plate 142, and a first sensor 145 detecting the position of the height detection probe 144. The second camera 143 is a 3D industrial camera, which can determine whether the substrate 201 is placed at a correct position by scanning the surface height information of the substrate 201. The height detection probe 144 moves downward to contact a specified position on the surface of the substrate 201, and the first sensor 145 detects the up-and-down height position of the height detection probe 144, so as to determine whether the substrate 201 is correctly assembled on the first linkage assembly 202.

[0099] The carrying detection mechanism 16 comprises an XY axis module 161, a fourth support plate 162 arranged at the movable end of the XY axis module 161, a second adsorption module 163 arranged on the fourth support plate 162, and a second height detection module 164 arranged on the fourth support plate 162. The second adsorption module 163 comprises a fourth air cylinder 1631 fixed on the fourth support plate 162 and a plurality of second suction nozzles 1632 driven by the fourth air cylinder 1631 to move up and down. The second height detection module 164 comprises a fifth air cylinder 1641 fixed on the fourth support plate 162 and a second sensor 1642 driven by the fifth air cylinder 1641 to move up and down. The second sensor 1642 can adopt a displacement sensor, and the sensing probe of the displacement sensor contacts the surface of the measured object to detect whether the screw locking assembly of the substrate link assembly 210 is qualified.

[0100] The second assembly unit 2 comprises a second turntable 21, a second jig 22 arranged at equal angles on the second turntable 21, a second feeding station, a third feeding station, a first riveting mechanism 23, a riveting detection mechanism 24, a second detection mechanism 25, and a second carrying and oiling mechanism 26 arranged in sequence around the second turntable 21. The second feeding station and the third feeding station are used for completing the feeding and assembly of the second link assembly 203 and the feeding of the substrate link assembly 210. The first riveting mechanism 23 rivets the substrate link assembly 210 and the second link assembly 203 together to form a substrate link module 220. The riveting detection mechanism 24 is used for detecting whether the riveting of the substrate link assembly 210 and the second link assembly 203 is qualified, whether the height of the substrate link module 220 obtained after the two are assembled together meets the requirements, and performing partial riveting on one of the parts in the second link assembly 203, i.e., a rivet 2031, which is provided with a first spring 2032. One end of the first spring 2032 is limited in a groove of the rivet 2031, and the riveting detection mechanism 24 rivets a stopper at the opening of the groove to limit the end of the first spring from escaping from the groove. The second detection mechanism 25 is a vision camera, which is mainly used for detecting whether the rivet 2031 in the second link assembly 203 is correctly riveted, and whether the rivet in the substrate link module 220 is correctly riveted. The second carrying and oiling mechanism 26 is mainly used for oiling each part in the second link assembly 203 that needs to be oiled, and taking the substrate link module 220 out of the second jig 22. If the substrate link module 220 is qualified, it is carried to the third conveying line 10 and then to the second conveying line 9. If it is unqualified, it is discarded into the second NG box 29.

[0101] The second jig 22 is provided with an assembly bearing area 221 and a part bearing area 222. The assembly bearing area 221 is provided with a second positioning support block 2211 for supporting the second linkage assembly 203 in an assembled state and a plurality of third positioning support columns 2212 for supporting the base plate linkage assembly 210. The part bearing area 222 is provided with a plurality of third positioning support blocks 2221 for separately supporting each part of the second linkage assembly 203. In this embodiment, the part bearing area 222 is distributed around the left and right sides of the assembly bearing area 221, facilitating the operator to transfer parts from the part bearing area 222 to the assembly bearing area 221. A third camera 27 is arranged above the second feeding station, and a fourth camera 28 is arranged above the third feeding station. At the second feeding station and the third feeding station, the operator completes the following three tasks: (1) placing each part located in the part bearing area 222 onto the second positioning support block 2211 in the assembly bearing area 221 according to the assembly state of the second linkage assembly 203; (2) placing a new set of second linkage assembly parts onto the third positioning support block 2221 in the part bearing area 222 according to the specified requirements; (3) placing the base plate linkage assembly 210 onto the third positioning support column 2212 in the assembly bearing area 221 according to the assembly state of the second linkage assembly 203. Task (1) can be completed at the second feeding station, and tasks (2) and (3) can be completed at the third feeding station; or tasks (1) and (2) can be completed at the second feeding station, and task (3) can be completed at the third feeding station. The third camera 27 and the fourth camera 28 respectively detect whether each part placed at the second feeding station and the third feeding station is correct and whether there is any omission.

[0102] The second jig 22 is installed on the second turntable 21 in a quick-change manner, and can be quickly switched for different models of automobile door locks and four types of products, i.e., front left, front right, rear left, and rear right of the same model of automobile door lock.

[0103] The riveting detection mechanism 24 includes a fifth camera 241 for detecting whether the riveting position of the base plate linkage assembly 210 and the second linkage assembly 203 is correctly riveted, a third height detection module 242 for detecting whether the rivet riveting height in the assembly bearing area 221 meets the requirements, a sixth camera 243 for detecting whether the rivet in the part bearing area 222 is correctly placed and whether the spring on the rivet is correctly installed, and a second riveting mechanism 244 for riveting the rivet in the part bearing area 222. The third height detection module 242 includes a seventeenth air cylinder 2421 and a third sensor 2422 driven by the seventeenth air cylinder 2421 to move up and down. The third height detection module 242 detects whether the rivet height in the base plate linkage assembly 210 after riveting meets the requirements through contact detection.

[0104] The second carrying and oiling mechanism 26 comprises a first multi-axis robot 261, a fifth support plate 262 arranged at the active end of the first multi-axis robot 261, a third adsorption module 263 arranged on the fifth support plate 262, and a second oiling module 264 arranged on the fifth support plate 262.

[0105] The third assembly unit 3 comprises an actuator assembly device (not labeled in the figure) and a handle assembly assembly device (not labeled in the figure) arranged side by side. The operator completes the assembly of the actuator 204 at the actuator assembly device, and completes the assembly of the handle assembly 205 at the handle assembly assembly device, and then places the actuator 204 and the handle assembly 205 onto the second conveying line 9 and flows into the fourth assembly unit 4.

[0106] The actuator assembly device comprises a first supply box 31, a third jig 32 carrying the actuator 204, a sixth cylinder 33 driving the third jig 32 to move horizontally between a first working position and a second working position, an actuator oiling mechanism 34 arranged above the second working position and oiling the actuator parts in the third jig 32, and a first handheld screw gun 35 for screwing the actuator at the first working position. The operator takes out part of the actuator parts from the first supply box 31 at the first working position, and places each part of the actuator such as the first shell, the gear, and the worm in the third jig 32 according to the assembly state, and then the third jig 32 moves to the second working position, and the actuator oiling mechanism 34 is used to oil the parts of the actuator 204 that need to be oiled; then the third jig 32 returns to the first working position, the operator takes out the second shell from the first supply box 31, and buckles the first shell and the second shell together, and then uses the first handheld screw gun 35 to screw and fix the first shell and the second shell, completing the assembly of the actuator 204.

[0107] The actuator oiling mechanism 34 comprises a seventh cylinder 341, a sixth support plate 342 driven by the seventh cylinder 341 to move up and down, a plurality of elastic pressing blocks 343 elastically floating up and down on the sixth support plate 342, and a plurality of oiling nozzles 344 arranged below the sixth support plate 342. In the present embodiment, a plurality of bearing cavities are arranged on the third jig 32 to simultaneously meet the bearing requirements of the actuators in the left and right automobile door locks. The number of elastic pressing blocks 343 is the same as the number of bearing cavities in the third jig 32. The number of oiling nozzles 344 is correspondingly arranged according to the number of actuator assemblies that can be carried in the third jig 32, and the number of positions that need to be oiled in each actuator assembly.

[0108] The handle assembly assembling device comprises a second feeding box (not shown in the figure) for supplying each component of the handle assembly 205 and a handle pin assembling mechanism 36 for assembling the long pins 2051 on both sides of the handle assembly into the handle assembly body. The handle pin assembling mechanism 36 comprises a first bearing seat 361, a first pressing module 362 for fixing and pressing the handle assembly 205 on the first bearing seat 361, a pin support module 363 for bearing the long pins 2051 on the opposite sides of the first bearing seat 361, a pin pushing module 364 for pushing the long pins 2051 on the pin support module 363 into the handle assembly 205 on the first bearing seat 361, and a spring lifting module 365 located below the first bearing seat 361 and used for lifting the second spring 2052 at the bottom of the handle assembly 205 to an assembling height position before the pin pushing. The operator takes the long pins 2051 from the second feeding box and places them on the pin support module 363, takes the second spring 2052 and places it on the spring lifting module 365, takes other components and assembles the handle assembly body together according to the assembling relationship, and then places it on the first bearing seat 361. The long pins 2051 are assembled into the assembling holes in the handle assembly 205 through the pin pushing module 364, and the long pins 2051 pass through the second spring 2052 at the same time.

[0109] The pin support module 363 comprises an eighth cylinder 3631, a pin support seat 3632 driven by the eighth cylinder 3631 to move up and down, and a fourth sensor 3633 for detecting whether there is a pin on the pin support seat 3632. When loading the long pins 2051, the pin support seat 3632 is located at a high position. After the long pins 2051 are placed on the pin support seat 3632, the pin pushing module 364 pushes the long pins 2051 towards the handle assembly 205 by a first distance. At this time, one end of the long pins 2051 extends into the assembling holes of the handle assembly 205. Then the pin support seat 3632 is lowered to a low position for position avoidance, and the pin pushing module 364 continues to push the long pins 2051 until they are in place.

[0110] The pin pushing module 364 comprises a ninth cylinder 3641, a seventh support plate 3642 driven by the ninth cylinder 3641 to move in a first direction, a tenth cylinder 3643 and a guide sleeve 3644 fixed on the seventh support plate 3642, and a pushing top rod 3645 driven by the tenth cylinder 3643 to move in the first direction and passing through the guide sleeve 3644. The pushing top rod 3645 pushes one end of the long pins 2051 on the pin support module 363.

[0111] The spring jacking module 365 comprises an eleventh cylinder 3651, an eighth support plate 3652 driven by the eleventh cylinder 3651 to move up and down, a spring support block 3653 provided on the eighth support plate 3652 and carrying the main body part of the second spring 2052, and spring end limiting blocks 3654 elastically floating up and down on the eighth support plate 3652 and used to limit the positions of the two extension sections of the second spring 2052. In the initial state, the eighth support plate 3652 is at the low position, and the operator places the second spring 2052 on the spring support block 3653, at the same time, the two extension sections of the second spring 2052 are clamped into the corresponding clamping grooves on the spring end limiting blocks 3654. After the long pin 2051 and the handle assembly body are placed in position, the eighth support plate 3652 moves up to the high position, in the process, the spring support block 3653 and the spring end limiting blocks 3654 synchronously rise, and then the spring support block 3653 moves upward relative to the spring end limiting blocks 3654, and the main body part of the second spring 2052 is jacked upward into the storage groove in the handle assembly body, and then the long pin 2051 is pushed in to pass through the second spring 2052 and is installed in position.

[0112] The fourth assembly unit 4 is mainly used for assembling the base plate connecting rod module 220, the actuator 204 and the handle assembly 205 together to obtain a semi-finished product assembly 230. The fourth assembly unit 4 comprises a double-station transfer mechanism 41 and a screw locking detection mechanism 42 located above the same end of the double-station transfer mechanism 41.

[0113] The double-station transfer mechanism 41 comprises a first transfer module 411 and a second transfer module 412 arranged side by side along the Y direction; the first transfer module 411 and the second transfer module 412 are identical in structure and each comprises a first driving member 4111 and a fourth jig 4112 horizontally movable along the X direction driven by the first driving member 4111; the fourth jig 4112 is driven by the first driving member 4111 to switch positions between the loading and unloading station and the screw locking detection station. The loading and unloading station is provided above with a seventh camera 413 for detecting whether the actuator 204, the handle assembly 205 and the substrate link module 220 are correctly placed. At the loading and unloading station, an operator places the actuator 204, the handle assembly 205 and the substrate link module 220 in the fourth jig 4112; at the screw locking detection station, a screw locking detection mechanism 42 locks the actuator 204 and the substrate link module 220 together with screws, locks the handle assembly 205 and the substrate link module 220 together with screws, obtains a semi-finished product assembly 230, and detects the locking height of the actuator 204 and the substrate link module 220 and the locking height of the handle assembly 205 and the substrate link module 220; finally, the operator takes the semi-finished product assembly 230 out of the fourth jig 4112 and places it on the fourth conveying line 20 and conveys it to the fifth assembly unit 5. The first transfer module 411 and the second transfer module 412 alternately supply materials, improving the utilization rate of the screw locking detection mechanism 42 and the assembly efficiency.

[0114] Among the various models of automobile door locks produced, one of the automobile door locks has a knob 2053 on the handle assembly 205, which will block the screw locking hole position of the handle assembly 205 and the base plate linkage module 220 when the handle assembly 205 is screwed. In order to ensure the smooth assembly of the handle assembly 205, the fourth jig 4112 is optimized and designed, and a pushing module 414 is arranged at the screw locking detection station to drive the knob 2053 to rotate for position avoidance. Specifically, the fourth jig 4112 includes a jig bottom plate 41121, a fourth positioning support block 41126 arranged on the jig bottom plate 41121 and supporting the actuator 204, the handle assembly 205 and the base plate linkage module 220 in the assembled state respectively, a plurality of fifth positioning support blocks 41122 and a plurality of sixth positioning support blocks 41123, a movable plate 41124 slidingly arranged on the jig bottom plate 41121 in the Y direction, and a pair of limiting columns 41125 arranged on the movable plate 41124. When the handle assembly 205 is placed on the fifth positioning support block 41122, the knob 2053 is located between the two limiting columns 41125. The pushing module 414 is arranged corresponding to the position of the movable plate 41124, and includes a twelfth air cylinder 4141 and a push rod 4142 driven by the twelfth air cylinder 4141 to move the movable plate 41124 in the Y direction. The movable plate 41124 is pushed by the pushing module 414, and then the knob 2053 is moved by the limiting columns 41125 on both sides of the knob 2053, so that the knob 2053 is driven to move to an avoidance position, so as to screw the handle assembly 205.

[0115] The screw locking detection mechanism 42 includes a second driving member 421, a third driving member 422 driven by the second driving member 421 to move in the Y direction, a ninth support plate 423 driven by the third driving member 422 to move up and down, a fourth height detection module 424 and a second screw locking mechanism 425 arranged on the ninth support plate 423. The fourth height detection module 424 includes a thirteenth air cylinder (not labeled in the figure) fixed on the ninth support plate 423 and a fifth sensor (not labeled in the figure) driven by the thirteenth air cylinder to move up and down.

[0116] The fifth assembly unit 5 is mainly used for completing the locking installation of the switch wire 206 and the connecting rod 207, and manual locking operation is adopted in this work station. The fifth assembly unit 5 comprises a fifth jig 51 for supporting and positioning the semi-finished product assembly 230, a third feeding box 52 for supplying the switch wire and the connecting rod, a second pressing die set 53 located at the side of the fifth jig 51 and used for pressing and fixing the semi-finished product assembly 230 on the fifth jig 51, a second handheld screw gun 54 for locking and installing the switch wire 206 on the semi-finished product assembly 230, and a scratch-preventing shielding die set 55 for preventing the surface of the side part from being scratched during the locking screw operation of the switch wire 206. The operator takes the semi-finished product assembly 230 from the fourth conveying line 20 and places it on the fifth jig 51, and then presses and fixes it by using the second pressing die set 53, moves the shielding piece in the scratch-preventing shielding die set 55 to the position, takes the switch wire 206 from the third feeding box 52, locks and fixes it by using the second handheld screw gun 54, and then takes the connecting rod 207 and assembles it on the semi-finished product assembly 230 according to the design requirements, so as to obtain the automobile door lock 200.

[0117] The first detection unit 6 is mainly used for detecting whether the PIN pin in the power plug 208 in the automobile door lock 200 is assembled correctly, and detecting whether the locking height of the switch wire 206 meets the requirements. The first detection unit 6 comprises a fourth driving member 61, a tenth support plate 62 driven by the fourth driving member 61 to move along the Y direction, a sixth jig 63 and a plug probe detection die set 64 arranged on the tenth support plate 62, and a fifth height detection die set 65 for detecting the height of the specified position of the automobile door lock 200 on the sixth jig 63. The sixth jig 63 is used for bearing and positioning the automobile door lock 200. The sixth jig 63 is driven by the fourth driving member 61 to move between a third working position and a fourth working position. At the third working position, the operator realizes the feeding and discharging operation of the automobile door lock 200, and inserts the power plug of the automobile door lock 200 into the specified position on the plug probe detection die set 64. At the fourth working position, the fifth height detection die set 65 detects the height of the specified point on the automobile door lock 200. In addition, the fourth driving member 61 also cooperates with the fifth height detection die set 65 to realize the displacement of the automobile door lock 200 in the Y direction, so that the fifth height detection die set 65 can detect all the height detection points.

[0118] The plug probe detection module 64 is provided with a plurality of sixth jigs 63 to adapt to the detection of the power plug PIN of various models of automobile door locks. The plug probe detection module 64 comprises a plug fixing seat 641 for fixing the power plug 208 to be detected, a fourteenth air cylinder 642 located below the plug fixing seat 641, an eleventh support plate 643 driven by the fourteenth air cylinder 642 to move up and down, a plurality of elastic probes 644 elastically floating up and down on the eleventh support plate 643 and capable of being inserted into the power plug 208 on the plug fixing seat 641, and a sixth sensor 645 provided on the eleventh support plate 643 and used for detecting the extension and retraction of the elastic probes 644. The elastic probes 644 are provided in a plurality of corresponding positions and numbers of PINs in the power plug 208, and the number of the sixth sensors 645 is the same as that of the elastic probes 644, so as to independently detect the extension and retraction of each elastic probe 644, and further to detect whether the installation position of each PIN is correct or whether there is a missing condition.

[0119] The fifth height detection module 65 comprises an XZ-axis transfer module 651 and a ninth sensor 652 provided at the active end of the XZ-axis transfer module 651.

[0120] The second detection unit 7 comprises a second bearing seat 71 for bearing the automobile door lock 200, a third pressing module 72 for pressing and fixing the automobile door lock 200 on the second bearing seat 71, a first load detection module 73 and a second load detection module 74 provided around the second bearing seat 71, a first drive detection module 75 and a second drive detection module 76, an inner lock catch poking module 77 for driving the inner lock catch 2021 in the first connecting rod assembly 202 to move back and forth, a handle poking module 78 for driving the handle 2054 in the handle assembly 205 to move back and forth, and a knob poking module 79 for driving the knob 2053 in the handle assembly 205 to move back and forth.

[0121] In the embodiment, the second bearing seat 71, the third pressing module 72, the first load detection module 73, the second load detection module 74, the first drive detection module 75 and the second drive detection module 76 are provided with two groups to meet the detection requirements of the left automobile door lock and the right automobile door lock. The detection of the left automobile door lock and the right automobile door lock shares the same inner lock catch poking module 77, handle poking module 78 and knob poking module 79.

[0122] The first load detection module 73 comprises a first support shaft 731 arranged vertically, a twelfth support plate 732 arranged on the first support shaft 731 to rotate around the Z axis, a first telescopic rod 733 arranged on the twelfth support plate 732 to horizontally and telescopically slide, a first detection plate 734 fixed on the first telescopic rod 733, a seventh sensor 735 fixed on the twelfth support plate 732 and arranged to detect the moving position of the first detection plate 734, a first counterweight 736 arranged to axially hold the first detection plate 734 along the first telescopic rod 733, a first connecting rod shaft 737 arranged to rotate with the free end of the first telescopic rod 733 and vertically extend, and a first connecting block 738 fixedly connected with the bottom end of the first connecting rod shaft 737. When the automobile door lock 200 is placed on the second bearing seat 71, the top end of the first connecting rod shaft 737 is inserted into the insertion hole in the end of the first connecting rod plate 2033 in the second connecting rod assembly 203. The first counterweight 736 is arranged to simulate the connecting load of the set end of the first connecting rod plate 2033 in the automobile door lock, and the seventh sensor 735 is arranged to monitor the displacement data of the first detection plate 734 to determine whether the first telescopic rod 733 moves together with the first connecting rod plate 2033. The twelfth support plate 732 is arranged on the first support shaft 731 to rotate around the Z axis, and the first telescopic rod 733 is arranged on the twelfth support plate 732 to horizontally and telescopically slide, so that the first telescopic rod 733 can follow the movement track of the set end of the first connecting rod plate 2033 more accurately.

[0123] The second load detection module 74 comprises a second support shaft 741 arranged vertically, a thirteenth support plate 742 arranged on the second support shaft 741 to rotate around the Z axis, a second telescopic rod 743 arranged on the thirteenth support plate 742 to slide horizontally and telescopically, a second detection plate 744 fixed on the second telescopic rod 743, an eighth sensor 745 fixed on the thirteenth support plate 742 and detecting the moving position of the second detection plate 744, a second counterweight 746 axially holding the second detection plate 744 along the second telescopic rod 743, a second connecting rod shaft 747 arranged vertically and connected with the free end of the second telescopic rod 743, and a second connecting block 748 fixedly connected with the bottom end of the second connecting rod shaft 747. When the automobile door lock 200 is placed on the second bearing seat 71, the second connecting rod shaft 747 penetrates upward through the first connecting block 738, and the top end thereof is inserted into the insertion hole in the end of the second connecting rod plate 2034 in the second connecting rod assembly 203. The first connecting block 738 is provided with an avoiding groove 7381 for avoiding the movement of the second connecting rod shaft 747. The connecting load of the set end of the second connecting rod plate 2034 in the automobile door lock is simulated by the second counterweight 746, and the displacement data of the second detection plate 744 is monitored by the eighth sensor 745, so as to judge whether the second telescopic rod 743 moves together with the second connecting rod plate 2034. The thirteenth support plate 742 is arranged on the second support shaft 741 to rotate around the Z axis, and the second telescopic rod 743 is arranged on the thirteenth support plate 742 to slide horizontally and telescopically, so that the second telescopic rod 743 can follow the movement track of the set end of the second connecting rod plate 2034 more accurately.

[0124] The first drive detection module 75 comprises a slide rail 751 arranged horizontally, a sliding block 752 arranged on the slide rail 751, a third support shaft 753 arranged vertically on the sliding block 752, a fourteenth support plate 754 arranged on the third support shaft 753 to rotate around the Z axis, a first electric cylinder 755 fixed on the fourteenth support plate 754, a third telescopic rod 756 driven by the first electric cylinder 755 to move horizontally, a third connecting rod shaft 757 arranged vertically and connected with the free end of the third telescopic rod 756, and a third connecting block 758 fixedly connected with the bottom end of the third connecting rod shaft 757. When the automobile door lock 200 is placed on the second bearing seat 71, the top end of the third connecting rod shaft 757 is inserted into the insertion hole in the other end of the second connecting rod plate 2034. The second connecting rod plate 2034 is driven to move by the first electric cylinder 755, so as to meet the functional monitoring requirements of the automobile door lock of a specific model. The fourteenth support plate 754 is arranged on the sliding block 752 to rotate around the Z axis, so that the third telescopic rod 756 can be accurately driven according to the movement path of the set end of the second connecting rod plate 2034. In addition, the sliding block 752 is arranged on the slide rail 751 to slide, so that the position of the first drive detection module 75 can be adjusted, and the first drive detection module 75 is suitable for driving the corresponding connecting rod plate in the automobile door lock of different drive paths or different models.

[0125] In order to ensure that the first connecting rod shaft 737, the second connecting rod shaft 747 and the third connecting rod shaft 757 can be actively driven or passively followed by the rotation center (i.e. rivet 2031) of the first connecting rod plate 2033 and the second connecting rod plate 2034, the first connecting block 738, the second connecting block 748 and the third connecting block 758 are all rotationally arranged on the same fourth support shaft 710, and the bottom end of the rivet 2031, which is pressed together with the base plate connecting rod assembly 210, is located on the fourth support shaft 710 when the automobile door lock 200 is placed on the second bearing seat 71.

[0126] The second driving detection module 76 includes a second electric cylinder 761, a fifteenth support plate 762 driven by the second electric cylinder 761 to move horizontally, a first pressure sensor 763 fixed on the fifteenth support plate 762, a sixteenth support plate 764 arranged at the sensing end of the first pressure sensor 763, and a first lever 765 fixed on the sixteenth support plate 764 and used to push one end of the third connecting rod plate 2035 in the second connecting rod assembly 203. The driving force on the third connecting rod plate 2035 can be monitored in real time by the first pressure sensor 763, so as to prevent the automobile door lock from being damaged due to excessive driving force.

[0127] The inner lock catch pushing module 77 includes a third electric cylinder 771, a seventeenth support plate 772 driven by the third electric cylinder 771 to move horizontally, a second pressure sensor 773 fixed on the seventeenth support plate 772, an eighteenth support plate 774 arranged at the sensing end of the second pressure sensor 773, a nineteenth support plate 775 horizontally and elastically connected with the eighteenth support plate 774, and a plurality of second levers 776 arranged on the nineteenth support plate 775 and used to push the inner lock catch 2021. The nineteenth support plate 775 moves horizontally between the two second bearing seats 71, and the second levers 776 are symmetrically arranged in multiple groups, which can meet the needs of pushing the inner lock catch in the left automobile door lock and the right automobile door lock, and can also meet the needs of pushing the inner lock catch in different models of left automobile door locks or right automobile door locks. The driving force on the inner lock catch can be monitored in real time by the second pressure sensor 773, so as to prevent the automobile door lock from being damaged due to excessive driving force.

[0128] The handle driving module 78 comprises a fourth cylinder 781, a twentieth support plate 782 driven by the fourth cylinder 781 to move up and down, a third pressure sensor 783 arranged on the twentieth support plate 782, a twenty-first support plate 784 movably arranged on the twentieth support plate 782 in the X direction and monitored by the third pressure sensor 783, and a third driving rod 785 arranged on the twenty-first support plate 784 and used to drive the handle 2054. The third pressure sensor 783 is used to monitor the driving force of the third driving rod 785 in real time when the third driving rod 785 drives the handle 2054, so as to prevent the damage of the automobile door lock caused by the excessive driving force.

[0129] The knob driving module 79 comprises a fifteenth cylinder 791, a twenty-second support plate 792 driven by the fifteenth cylinder 791 to move up and down, a twenty-third support plate 793 movably arranged on the twenty-second support plate 792 in the X direction, a sixteenth cylinder 794 fixed on the twenty-third support plate 793, a twenty-fourth support plate 795 driven by the sixteenth cylinder 794 to move in the Y direction, and a fourth driving rod 796 arranged on the twenty-fourth support plate 795 and used to drive the knob 2053. The fourth driving rod 796 is driven by the sixteenth cylinder 794 to be inserted into or withdrawn from the corresponding insertion hole of the knob 2053. The twenty-second support plate 792 is movably arranged in the elastic floating manner, so that the fourth driving rod 796 is elastically matched with the insertion hole of the knob 2053, and the damage of the knob 2053 caused by the rigid collision can be effectively avoided.

[0130] The second detection unit 7 further comprises an X-axis moving module 711 and a twenty-fifth support plate 712 arranged at the movable end of the X-axis moving module 711. The handle driving module 78 and the knob driving module 79 are arranged on the twenty-fifth support plate 712. The X-axis moving module 711 is used to move the third driving rod 785 and the fourth driving rod 796 in the X direction, and drive the third driving rod 785 to drive the handle 2054 and drive the fourth driving rod 796 to drive the knob 2053.

[0131] When the second detection unit 7 detects the function of the automobile door lock, one or more driving modules selected from the first driving detection module 75, the second driving detection module 76, the inner lock driving module 77, the handle driving module 78 and the knob driving module 79 are used to drive the connecting rod plate, the emergency lock connecting rod, the child lock connecting rod, the handle or the system release connecting rod of the automobile door lock. The seventh sensor 735 of the first load detection module 73 and / or the eighth sensor 745 of the second load detection module 74 are used to feed back the position signal, so as to determine whether the first telescopic rod 733 and / or the second telescopic rod 743 follow the relevant connecting rod plate of the automobile door lock, and further determine whether the relevant function of the automobile door lock meets the requirements.

[0132] As for a person skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. An automobile door lock assembly production line characterized by comprising: It comprises: The first assembly unit assembles the substrate and the first connecting rod assembly together to obtain a substrate connecting rod assembly, and comprises a first rotary table, first jigs arranged at equal angles around the first rotary table, a first feeding station, a first carrying and oiling mechanism, a first detection mechanism, a first screw locking mechanism and a carrying and detection mechanism arranged in sequence around the first rotary table; the first jigs are provided with first carrying positions for carrying the first connecting rod assembly and second carrying positions for carrying the substrate side by side, the first carrying positions are provided with first positioning support blocks for supporting each part of the first connecting rod assembly in the assembled state and a plurality of first positioning support columns for supporting the substrate, and the second carrying positions are provided with a plurality of second positioning support columns for supporting the substrate; The second assembly unit assembles the substrate connecting rod assembly and the second connecting rod assembly together to obtain a substrate connecting rod module, and comprises a second rotary table, second jigs arranged at equal angles around the second rotary table, a second feeding station, a third feeding station, a first rivet pressing mechanism, a rivet pressing detection mechanism, a second detection mechanism and a second carrying and oiling mechanism arranged in sequence around the second rotary table; The third assembly unit is used for completing the assembly of the actuator and the handle assembly, and comprises an actuator assembly device and a handle assembly assembly device; the handle assembly assembly device comprises a second feeding box for supplying each part of the handle assembly and a handle pin assembly mechanism for assembling long pins on both sides of the handle assembly into the handle assembly body; the handle pin assembly mechanism comprises a first carrying seat, a first pressing module for fixing and pressing the handle assembly on the first carrying seat, a pin support module located on the opposite sides of the first carrying seat and used for carrying the long pins, a pin pushing module for pushing the long pins on the pin support module into the handle assembly on the first carrying seat, and a spring lifting module located below the first carrying seat and used for lifting a second spring at the bottom of the handle assembly to an assembly height position before the pins are pushed; The fourth assembly unit assembles the substrate connecting rod module, the actuator and the handle assembly together to obtain a semi-finished product assembly, and comprises a fourth jig for carrying the substrate connecting rod module, the actuator and the handle assembly, a first driving member for driving the fourth jig to move between a feeding and discharging station and a screw locking detection station, and a screw locking detection mechanism located at the screw locking detection station; The fifth assembly unit is used for completing the locking installation of the switch wire and the connecting rod, and comprises a fifth jig for supporting and positioning the semi-finished product assembly, a third feeding box for supplying the switch wire and the connecting rod, a second pressing module located beside the fifth jig and used for pressing and fixing the semi-finished product assembly on the fifth jig, and a second handheld screw gun for locking and installing the switch wire on the semi-finished product assembly; The first conveying line connects the first assembly unit and the second assembly unit; The second conveying line connects the third assembly unit and the fourth assembly unit; The third conveying line connects the second assembly unit and the second conveying line; The fourth conveying line connects the fourth assembly unit and the fifth assembly unit.

2. The automotive door lock assembly production line as set forth in claim 1, wherein The first carrying and oiling mechanism comprises an XYZ-axis module, a first support plate arranged at the movable end of the XYZ-axis module, a first suction module fixed on the first support plate and used for picking up a substrate, and a first oiling module fixed on the first support plate and used for oiling.

3. The automotive door lock assembly production line as set forth in claim 1, wherein The first detection mechanism comprises a third cylinder, a third support plate driven by the third cylinder to move up and down, a second camera fixed on the third support plate, and a first height detection module.

4. The automotive door lock assembly production line as set forth in claim 1, wherein The second jig is provided with an assembly bearing area and a part bearing area; the assembly bearing area is provided with a second positioning support block for supporting a second linkage assembly in an assembled state and a plurality of third positioning support columns for supporting a substrate linkage assembly; and the part bearing area is provided with a plurality of third positioning support blocks for supporting individual parts of the second linkage assembly.

5. The automotive door lock assembly production line as set forth in claim 4, wherein The rivet pressing detection mechanism comprises a fifth camera for detecting whether the rivet pressing position of the substrate linkage assembly and the second linkage assembly is correctly riveted, a third height detection module for detecting whether the set point height of the substrate linkage module meets the requirements, a sixth camera for detecting whether the rivet is correctly placed in the part bearing area, and a second rivet pressing mechanism for pressing the rivet in the part bearing area; and the second carrying and oiling mechanism comprises a first multi-axis robot, a fifth support plate arranged at the movable end of the first multi-axis robot, a third suction module arranged on the fifth support plate, and a second oiling module arranged on the fifth support plate.

6. The automotive door lock assembly production line as set forth in claim 1, wherein The actuator assembly device comprises a first feeding box, a third jig for bearing an actuator, a sixth cylinder for driving the third jig to move horizontally between a first working position and a second working position, an actuator oiling mechanism arranged above the second working position and used for oiling actuator parts in the third jig, and a first handheld screw gun for locking screws of the actuator at the first working position.

7. The automotive door lock assembly production line as set forth in claim 1, wherein The pin supporting module comprises an eighth cylinder, a pin supporting seat driven by the eighth cylinder to move up and down, and a fourth sensor for detecting whether there is a pin on the pin supporting seat; the pin pushing module comprises a ninth cylinder, a seventh support plate driven by the ninth cylinder to move in a first direction, a tenth cylinder fixed on the seventh support plate and a guide sleeve, and a pushing top rod driven by the tenth cylinder to move in the first direction and passing through the guide sleeve; and the spring lifting module comprises an eleventh cylinder, an eighth support plate driven by the eleventh cylinder to move up and down, a spring support block arranged on the eighth support plate and bearing a main body part of a second spring, and spring end limiting blocks elastically floating up and down on the eighth support plate and used for limiting the positions of two extension sections of the second spring.

8. The automotive door lock assembly production line as set forth in claim 1, wherein The lock screw detection station is provided with a pushing module for avoiding position of the fourth jig driving knob; the fourth jig includes a jig bottom plate, fourth positioning support blocks arranged on the jig bottom plate and supporting an executor, a handle assembly, a base plate connecting rod module in an assembled state respectively, a plurality of fifth positioning support blocks and a plurality of sixth positioning support blocks, a movable plate slidingly arranged on the jig bottom plate along the Y direction, and a pair of limiting columns arranged on the movable plate, and when the handle assembly is placed on the fifth positioning support block, the knob is located between the two limiting columns; the pushing module is arranged corresponding to the position of the movable plate and includes a twelfth cylinder and a push rod driven by the twelfth cylinder to move the movable plate along the Y direction.

9. The automotive door lock assembly production line as set forth in claim 1, wherein The lock screw detection mechanism includes a second driving member, a third driving member driven by the second driving member to move along the Y direction, a ninth support plate driven by the third driving member to move up and down, a fourth height detection module arranged on the ninth support plate, and a second lock screw mechanism.

10. The automotive door lock assembly production line as set forth in claim 1, wherein Further comprising a first detection unit located downstream of the fifth assembly unit and used for detecting whether the PIN pin in the automobile door lock power plug is assembled correctly; the first detection unit includes a fourth driving member, a tenth support plate driven by the fourth driving member to move along the Y direction, a sixth jig and a plug probe detection module arranged on the tenth support plate, and a fifth height detection module for height detection of a specified position of the automobile door lock on the sixth jig; the plug probe detection module includes a plug fixing seat for fixing the power plug to be detected, a fourteenth cylinder located below the plug fixing seat, an eleventh support plate driven by the fourteenth cylinder to move up and down, a plurality of elastic probes elastically floating up and down on the eleventh support plate and capable of being inserted into the inside of the power plug on the plug fixing seat, and a sixth sensor arranged on the eleventh support plate and used for detecting the extension and contraction of the elastic probes.

11. The production process realized by means of the automotive door lock assembly line according to any one of claims 1 to 10, characterized in that, The method comprises the following steps: S1, base plate connecting rod assembly: placing each part of the first connecting rod assembly on the first bearing position of the first jig according to the assembly state at the first feeding station, placing the base plate on the second bearing position of the first jig; the first carrying and oiling mechanism oils the specified parts in the first connecting rod assembly, and carries the base plate to the first bearing position to assemble with the first connecting rod assembly; the first detection mechanism detects whether the base plate and the first connecting rod assembly are correctly assembled; the first lock screw mechanism locks the base plate and the first connecting rod assembly together with screws to obtain the base plate connecting rod assembly; the carrying detection mechanism detects the height of the specified point of the base plate connecting rod assembly, and takes out the base plate connecting rod assembly from the first jig for discharging, and if the height detection of the base plate connecting rod assembly is qualified, it is placed on the first conveying line to flow into the second assembly unit; S2, base plate connecting rod module assembly: S21, at the second feeding station and the third feeding station, the following steps are completed: placing each part in the part bearing area on the second jig according to the assembly state of the second connecting rod assembly on the assembly bearing area of the second jig; Take a new set of second connecting rod assembly of each part, and one by one separately placed on the second jig parts bearing area; The substrate connecting rod assembly is placed on the assembly bearing area in the same way as the second connecting rod assembly; S22, the first rivet mechanism rivets the substrate connecting rod assembly and the second connecting rod assembly together to form a substrate connecting rod module; S23, the rivet detection mechanism detects whether the set point height on the substrate connecting rod module meets the requirements, and performs local riveting on the rivets placed on the parts bearing area; S24, the second detection mechanism detects whether the rivets placed on the parts bearing area are correctly riveted, and whether the rivets in the substrate connecting rod module are correctly riveted; S25, the second carrying and oiling mechanism oils the parts in the second connecting rod assembly, and takes out the substrate connecting rod module from the second jig. If the substrate connecting rod module is qualified, it is placed on the third conveying line and flows to the second conveying line; S3, the actuator and handle assembly is assembled: S31, actuator assembly: at the first working position, the operator takes out part of the actuator parts from the first supply box, including the first shell of the actuator, and places them in the third jig according to the assembly state. Then the third jig moves to the second working position, and the actuator oiling mechanism oils the specified parts in the actuator. Then the third jig returns to the first working position, the operator takes out the second shell of the actuator from the first supply box, and buckles it with the first shell. Then the first handheld screw gun is used to lock and fix the first shell and the second shell with screws, completing the assembly of the actuator; S32, handle assembly assembly: the operator takes out the long pin from the second supply box and places it on the pin support module, takes out the second spring and places it on the spring lifting module, and then takes out each part and assembles the handle assembly body together according to the assembly relationship. Then put it into the first bearing seat, and then push the long pin into the assembly hole in the handle assembly through the pin pushing module, and the long pin passes through the second spring at the same time; S33, place the actuator and handle assembly on the second conveying line and flow into the fourth assembly unit; S4, semi-finished product assembly: at the feeding and discharging station, the operator places the actuator, handle assembly and substrate connecting rod module in the fourth jig; the first driving member drives the fourth jig to move to the screw locking detection station, and the screw locking detection mechanism locks and fixes the actuator and the substrate connecting rod module together, and locks and fixes the handle assembly and the substrate connecting rod module together to obtain a semi-finished product assembly. The locking height of the actuator and the substrate connecting rod module, and the locking height of the handle assembly and the substrate connecting rod module are detected. Finally, the operator takes out the semi-finished product assembly from the fourth jig. If the semi-finished product assembly is qualified, it is placed on the fourth conveying line and conveyed to the fifth assembly unit. S5, switch line, connecting rod assembly: the operator takes the semi-finished assembly from the fourth conveying line and places it on the fifth jig, and fixes it tightly with the second pressing die set, then takes the switch line from the third feeding box, and locks and fixes it tightly with the second handheld screw gun, then takes the connecting rod and assembles it to the semi-finished assembly according to the design requirements, to obtain the automobile door lock.

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