An automatic production line for seat trays

Abstract

The present invention discloses an automatic production line for seat trays, wherein the locking mechanism assembly device assembles a torsion spring assembly and a connecting rod on the pallet to be assembled at a first assembly station, and assembles the torsion spring assembly and the connecting rod on the pallet to be assembled at a second assembly station, and the threaded rod assembly device assembles the threaded rod to the pallet to be assembled at a third assembly station; the plastic sleeve assembly device puts the plastic sleeve on the threaded rod at a fourth assembly station, the spring assembly assembly device puts the compression spring, the formed gasket and the flat gasket on the threaded rod at a fifth assembly station, and the plastic cover assembly device fits the adjusting nut in the plastic cover with the threaded rod thread at a seventh assembly station; the handle assembly device puts the handle piece on the adjusting rod at a ninth assembly station; this technical solution can realize the automatic assembly of seat trays.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical automation, and in particular to an automatic production line for seat trays. Background Art

[0002] For existing office chairs and leisure chairs, the tilting function and the adjustment of the tilting are usually achieved through the seat tray.

[0003] A Chinese patent document with publication number CN201542121U discloses a double-locking chair tray, comprising a chassis mounted on a swivel chair, the chassis being connected to a shell via a support shaft, an adjusting nut being provided in the shell, a spring being connected to the lower end of the adjusting nut, a movable seat being provided in the shell, a conical tube being inserted in the movable seat, a conical fixing plate being provided between the conical tube and the movable seat, an adjusting rod which can rotate and move axially being passed through the side walls of the chassis and the shell, the inner end of the adjusting rod being inserted into the inside of the movable seat and being connected to an adjusting plate which can contact a pneumatic rod, a limiting member being connected to the rod body of the adjusting rod, and a locking plate which can be buckled on the edge of the side wall of the chassis being connected at one end of the limiting member.

[0004] Due to its excellent structure, the seat tray in this patent document occupies a large market share.

[0005] However, the seat tray is currently basically assembled by hand, which not only increases the assembly cost of the seat tray, but is also time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0006] In order to solve the above problems, the purpose of the present invention is to overcome the above technical problems and provide an automatic production line for seat trays, which can realize the automatic assembly of seat trays.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] An automatic production line for seat trays, comprising a first conveyor line, a locking mechanism assembly device, a threaded rod assembly device, a plastic sleeve assembly device, a spring assembly device, a plastic cover assembly device, a handle assembly device, a pallet conveying device, a second conveyor line, a first assembly station, a second assembly station, a third assembly station, a first feeding station, a fourth assembly station, a fifth assembly station, a seventh assembly station, a first discharging station and a ninth assembly station, wherein the pallet conveying device is used to transport the pallets to be assembled from the first conveyor line to the first assembly station, the second assembly station, the third assembly station, the first feeding station, the fourth assembly station, the fifth assembly station, the seventh assembly station, the first discharging station and the ninth assembly station in sequence. At the second conveyor line, the locking mechanism assembly device assembles the torsion spring assembly and the connecting rod on the pallet to be assembled at the first assembly station, and assembles the torsion spring assembly and the connecting rod on the pallet to be assembled at the second assembly station, the threaded rod assembly device assembles the threaded rod to the pallet to be assembled at the third assembly station; the plastic sleeve assembly device puts the plastic sleeve on the threaded rod at the fourth assembly station, the spring assembly assembly device puts the compression spring, the molded gasket and the flat gasket on the threaded rod at the fifth assembly station, the plastic cover assembly device fits the adjusting nut in the plastic cover with the threaded rod thread at the seventh assembly station; the handle assembly device puts the handle piece on the adjusting rod at the ninth assembly station.

[0009] Preferably, the locking mechanism assembly device includes a first feeding mechanism, a first storage mechanism, a first clamping mechanism, a three-dimensional drive component, a second clamping component, a first assembling mechanism and a first riveting mechanism; the first clamping mechanism is used to send the torsion spring assembly from the first storage mechanism to the second clamping component, the second clamping component is installed at the moving end of the three-dimensional drive component and can be driven by the three-dimensional drive component to send the torsion spring assembly to the installation position in the tray to be assembled on the first assembly station; the first feeding mechanism sends the connecting rod to the first assembling mechanism, and the first assembling mechanism drives the connecting rod to pass through the second circular hole on one side of the chassis, the third circular hole on one side of the movable seat, the through hole on the torsion spring assembly, the third circular hole on the other side of the movable seat and the second circular hole on the other side of the chassis in sequence, and then assembles the connecting rod and the torsion spring assembly to the tray to be assembled;

[0010] The first riveting mechanism and the second assembly station perform riveting operations on the axial end of the connecting rod to assemble the connecting rod and the torsion spring assembly onto the pallet to be assembled.

[0011] Preferably, the threaded rod assembly device includes a second vibrating feeding mechanism and a second assembly mechanism for providing threaded rods, the second assembly mechanism is located on one side of the third assembly station, the second assembly mechanism feeds the threaded rod at the second vibrating feeding mechanism to the third assembly station, and can pass the axial end of the threaded rod through the fourth circular hole on the movable seat from bottom to top.

[0012] Preferably, the plastic sleeve assembly device includes a second vibrating plate, a second feeding track, a third transfer mechanism and a second sub-frame, wherein the second vibrating plate and the second feeding track are located on one side of the fourth assembly station, and the second vibrating plate is used to feed the plastic sleeve onto the second feeding track;

[0013] The second sub-frame is located on the other side of the fourth assembly station, and the second sub-frame is installed with a second alignment assembly and a third alignment assembly. The third alignment assembly is located above the second alignment assembly, and the third transfer mechanism transfers the plastic sleeve located at the discharge port of the second vibration track to the second alignment assembly, and makes the plastic sleeve empty on the threaded rod, and the second alignment assembly clamps the threaded rod in the tray to be assembled so that the threaded rod is placed upright and then released, and the third alignment assembly clamps the plastic sleeve located on the second alignment assembly so that the plastic sleeve is placed upright and then released, thereby completing the assembly of the plastic sleeve.

[0014] Preferably, the spring assembly assembly device includes a sixth assembly mechanism, a third clamping mechanism, a fourth clamping mechanism, a first conveying track, a compression spring feeding mechanism, a formed gasket feeding mechanism, and a flat gasket feeding mechanism;

[0015] The first conveying track is sequentially provided with a first station, a second station, a third station, and a fourth station; the fourth clamping mechanism includes a first conveying track located on a frame, three seventh clamping assemblies, and a second driving member for driving the three seventh clamping assemblies to move; the compression spring feeding mechanism vertically places the compression spring on the first station; the formed gasket feeding mechanism places the formed gasket flatly on the compression spring at the second station; and the flat gasket feeding mechanism places the flat gasket flatly on the compression spring and the formed gasket at the third station to form a spring assembly;

[0016] After the three seventh clamping assemblies respectively clamp the compression spring on the first station, the compression spring and the formed gasket on the second station, and the spring assembly on the third station, the second driving member drives the three seventh clamping assemblies to move and deliver the compression spring on the first station, the compression spring and the formed gasket on the second station, and the spring assembly on the third station to the second station, the third station, and the fourth station respectively;

[0017] The sixth assembly mechanism is used to make the threaded rod on the pallet to be assembled vertical, and to make the plastic sleeve on the pallet to be assembled vertical, so that the third clamping mechanism can clamp the spring assembly located on the fourth workstation to the pallet to be assembled, and make the spring assembly located in the plastic sleeve and sleeved on the threaded rod.

[0018] Preferably, the plastic cover assembly device includes a fifth feeding mechanism, a first driving mechanism, a fourth assembly mechanism and an assembly robot, the fifth feeding mechanism is used to feed out the plastic cover with the opening facing downward, and the fourth assembly mechanism makes the threaded rod in the tray to be assembled vertical; the first driving mechanism drives the assembly robot to move so that the assembly robot clamps the plastic cover on the fifth feeding mechanism and then engages with the threaded rod to assemble the plastic cover on the tray to be assembled at the seventh assembly station.

[0019] Preferably, the handle member includes an integrally formed handle bottom wall and a handle side wall, the handle side wall being provided with a handle mounting hole that is interference-fitted with the handle end of the adjusting rod; the adjusting rod includes an integrally bent first rod portion and a second rod portion, the first rod portion being mounted on the tray to be assembled, and the handle end of the adjusting rod being located at the outer end of the second rod portion;

[0020] The handle assembly device includes a sixth feeding mechanism and an eighth assembly mechanism, the eighth assembly mechanism includes an eighth movable driving member, an eighth receiving member, a second stop member, a fifth alignment driving member and two fifth alignment members, the second stop member is used to resist the first rod portion, the fifth alignment driving member drives the two fifth alignment members to move closer to or away from each other to clamp or release the second rod portion, and when clamping the second rod portion, the handle end of the adjusting rod can be directed toward the eighth receiving member, the eighth receiving member is used to receive the handle member transported by the sixth feeding mechanism and can align the handle mounting hole on the handle member with the handle end of the adjusting rod, the eighth movable driving member drives the eighth receiving member to move back and forth and can make the handle member be sleeved on the handle end of the adjusting rod.

[0021] Preferably, the pallet conveying device includes a second pallet conveying mechanism, the second pallet conveying mechanism includes a fourth drive component, a slide rail forming a closed loop and a plurality of fourth assembly plates for placing pallets to be assembled, some or all of the plurality of fourth assembly plates are respectively distributed on the first feeding station, the fourth assembly station, the fifth assembly station, the seventh assembly station and the first discharging station, the fourth drive component drives all the fourth assembly plates to move along the slide rail, and in the process of all the fourth assembly plates moving along the slide rail, all the fourth assembly plates flow between the first feeding station, the fourth assembly station, the fifth assembly station, the seventh assembly station and the first discharging station.

[0022] As a preference, an eighth assembly station, an automatic riveting mechanism, an automatic alignment mechanism and an automatic reaming mechanism are further provided, wherein the eighth assembly station is located between the first discharge station and the ninth assembly station;

[0023] The automatic riveting mechanism is located between the first discharge station and the eighth assembly station and is used to perform riveting on the shaft ends of the threaded rods;

[0024] The automatic alignment mechanism moves the torsion spring assembly to the middle position of the connecting rod at the eighth assembly station;

[0025] The automatic reaming mechanism is located between the eighth assembly station and the ninth assembly station and is used for reaming the tapered tubes in the tray to be assembled.

[0026] Preferably, the automatic riveting mechanism includes a second riveting motor, a second riveting power head, a second turntable and a second rotating motor, the second turntable is sequentially provided with a second feeding station, a riveting station and a second discharging station, the second feeding station, the riveting station and the second discharging station are all provided with a fifth assembly plate, the second riveting motor drives the second riveting power head to rotate so as to perform riveting on the axial end of the threaded rod at the riveting station, and the second rotating motor drives the second turntable to rotate so that the plurality of fifth assembly plates on the second turntable flow between the second feeding station, the riveting station and the second discharging station;

[0027] The automatic reaming mechanism includes a third turntable, a cleaning assembly, a reaming assembly and a fifth rotating motor, the third turntable is sequentially provided with a third feeding station, a reaming station, a third discharging station and a cleaning station, the third feeding station, the reaming station, the third discharging station and the cleaning station are each provided with a seventh assembly plate for placing a tray to be assembled, the reaming assembly performs reaming operations on the tapered tube in the tray to be assembled at the reaming station; the cleaning assembly cleans the seventh assembly plate at the cleaning station, and the fifth rotating motor drives the third turntable to rotate so that the plurality of fifth assembly plates on the third turntable flow between the third feeding station, the reaming station, the third discharging station and the cleaning station;

[0028] The pallet conveying device also includes a first robot for conveying the pallet to be assembled on the first conveyor line to the first assembly station, a second robot for conveying the pallet to be assembled from the first assembly station to the second assembly station, a third robot for conveying the pallet to be assembled from the second assembly station to the third assembly station, a fourth robot for conveying the pallet to be assembled from the third assembly station to the first feeding station, a fifth robot for conveying the pallet to be assembled from the first unloading station to the second feeding station, a sixth robot for conveying the pallet to be assembled from the second unloading station to the eighth assembly station, a seventh robot for conveying the pallet to be assembled from the eighth assembly station to the third feeding station, an eighth robot for conveying the pallet to be assembled from the third unloading station to the ninth assembly station, and a ninth robot for conveying the pallet to be assembled from the ninth assembly station to the second conveyor line.

[0029] The beneficial effect of the present invention is that the automated assembly of the seat tray is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1A schematic diagram of an automatic production line for seat trays according to an embodiment of the present application;

[0031] Figure 2 A schematic diagram of a locking mechanism assembly device in an embodiment of the present application;

[0032] Figure 3 Schematic diagram of the locking mechanism assembly device assembling the torsion spring assembly and the connecting rod at the first assembly station in the embodiment of the present application Figure 1 ;

[0033] Figure 4 Schematic diagram of the locking mechanism assembly device assembling the torsion spring assembly and the connecting rod at the first assembly station in the embodiment of the present application Figure 2 ;

[0034] Figure 5 This is a schematic diagram of the coordination between the toggle assembly and the second clamping assembly in an embodiment of the present application;

[0035] Figure 6 This is a schematic diagram of the locking mechanism assembly device in an embodiment of the present application assembling a torsion spring assembly and a connecting rod at the second assembly station;

[0036] Figure 7 This is a schematic diagram of the assembly adjustment mechanism in the embodiment of the present application;

[0037] Figure 8 This is a structural diagram of the second tray conveying mechanism in an embodiment of the present application;

[0038] Figure 9 This is a schematic structural diagram of the fourth assembly plate in an embodiment of the present application;

[0039] Figure 10 Schematic diagram of the threaded rod assembly device assembling the threaded rod at the third assembly station in an embodiment of the present application;

[0040] Figure 11 This is a schematic diagram of the plastic sleeve assembly device assembling the plastic sleeve at the fourth assembly station in an embodiment of the present application;

[0041] Figure 12 This is a schematic structural diagram of the third clamping and conveying mechanism in an embodiment of the present application;

[0042] Figure 13 Schematic diagram of the structure of the spring assembly assembly device in the embodiment of the present application (the third clamping mechanism is omitted);

[0043] Figure 14 This is a schematic diagram of the fourth assembly mechanism assembling the spring assembly at the fifth assembly station in an embodiment of the present application;

[0044] Figure 15This is a structural diagram of the plastic cover assembly device in an embodiment of the present application (one assembly robot is omitted);

[0045] Figure 16 This is a schematic diagram of the structure of the assembly robot in the embodiment of the present application;

[0046] Figure 17 Schematic diagram of riveting, alignment, reaming and assembling the handle member in an embodiment of the present application;

[0047] Figure 18 This is a schematic diagram of an automatic riveting mechanism in an embodiment of the present application;

[0048] Figure 19 This is a schematic diagram of the automatic alignment mechanism in an embodiment of the present application;

[0049] Figure 20 This is a schematic diagram of an automatic reaming mechanism in an embodiment of the present application;

[0050] Figure 21 Schematic diagram of the handle assembly device in an embodiment of the present application (the sixth feeding mechanism is omitted);

[0051] Figure 22 This is a structural diagram of the first tray conveying mechanism in an embodiment of the present application;

[0052] Figure 23 This is a schematic structural diagram of the third tray conveying mechanism in an embodiment of the present application;

[0053] Figure 24 This is a structural diagram of the fourth tray conveying mechanism in an embodiment of the present application;

[0054] Figure 25 This is a structural diagram of the fifth tray conveying mechanism in an embodiment of the present application;

[0055] Figure 26 This is an exploded schematic diagram of a seat tray in an embodiment of the present application;

[0056] Figure 27 Schematic diagram of a torsion spring assembly in an embodiment of the present application;

[0057] Figure 28 This is a schematic diagram of the handle in an embodiment of the present application.

[0058] Description of reference numerals: 10, first conveyor line; 11, second conveyor line; 101, positioning block;

[0059] 20. First frame; 21. First pallet conveying mechanism; 210. First sub-frame; 2101. First slide rail; 211. First manipulator; 212. Second manipulator; 213. Third manipulator; 214. Fourth manipulator; 2120. Manipulator substrate A; 2121. Manipulator lifting drive; 2122. Manipulator rotation drive; 2123. Pinch assembly; 2140. Manipulator substrate B; 2142. Second lifting drive; 2143. First mounting base; 2144. Third lifting drive; 2145. Fifth clamping assembly; 2146. Sixth clamping assembly; 215. First drive motor;

[0060] 22. Locking mechanism assembly; 220. First storage mechanism; 221. First clamping mechanism; 222. Three-dimensional drive assembly; 2218. First clamping drive member; 223. Second clamping assembly; 2230. Second clamping drive member; 2231. Second clamping member; 22310. Second clamping portion; 22311. Third clamping portion; 22312. Second groove; 224. First retaining assembly; 2242. Second mobile drive member; 2243. First retaining member; 225. Toggle assembly; 2251. First mobile drive member; 2252. Second bracket; 2253. First rotational drive member; 2254. Third rotation seat; 2255. Toggle member; 22550. Toggle notch;

[0061] 230, first feeding mechanism;

[0062] 241, first pushing assembly; 2410, first pushing member; 2411, fifth movable driving member; 242, first receiving assembly; 2420, first receiving member; 2421, first receiving driving member; 24201, first receiving groove; 24202, second receiving groove; 245, third bracket; 243, first alignment assembly; 2430, first alignment rod; 2431, fourth movable driving member; 244, fourth bracket; 2441, alignment slide;

[0063] 250, first riveting motor; 251, first rotary power head; 252, sixth moving drive member; 253, second pressing member;

[0064] 26. First assembly station; 261. First bracket; 262. First bracket; 263. First spring;

[0065] 27. Second assembly station;

[0066] 30, second rack; 301, first feeding station; 302, fourth assembly station; 303, fifth assembly station; 304, sixth assembly station; 305, seventh assembly station; 306, first discharging station;

[0067] 31. Third assembly station; 310. Fifth bracket; 311. First assembly plate; 3111. First avoidance portion; 313. First rotation axis;

[0068] 320, fourth assembly plate; 321, fourth positioning column; 322, fourth mounting seat; 323, positioning groove; 324, roller;

[0069] 33. Second pallet conveying mechanism; 331. Slide rail member; 3311. First slide rail segment; 3312. Second slide rail segment; 3313. Third slide rail segment; 3314. Fourth slide rail segment; 3302. Driving gear; 3303. Driven gear; 3304. Chain; 3316. Second track; 3321. Sixth bracket; 3322. Second rotating shaft; 3323. First positioning member; 3324. Connecting member; 3325. Third rotating driving member;

[0070] 34. Third pallet conveying mechanism; 341. Seventh sub-frame; 342. Fifth manipulator; 343. Seventh drive motor; 3410. Seventh slide rail;

[0071] 35. Threaded rod assembly device; 350. Second vibrating feed mechanism; 3510. Fourth clamping member; 352. First linear motion drive member; 353. Second linear motion drive member; 354. Eighth rotation drive member; 355. Ninth rotation drive member;

[0072] 36. Plastic sleeve assembly device; 360. Second vibration plate; 361. Second vibration feed track; 362. Third transfer mechanism; 3621. Second two-dimensional drive assembly; 3622. First transfer assembly; 363. Third assembly mechanism; 3631. Second alignment assembly; 3632. Second sub-frame; 3633. Third alignment assembly;

[0073] 37. Spring assembly assembly device; 370. Third frame; 371. Third clamping mechanism; 372. Sixth assembly mechanism; 373. Compression spring feeding mechanism; 374. Formed gasket feeding mechanism; 375. Flat gasket feeding mechanism; 3710. Two-dimensional third drive assembly; 3711. First rotary drive member; 3712. Tenth clamping assembly; 37121. Tenth clamping drive member; 37122. Tenth clamping member; 37123. Third alignment rod; 376. Fourth clamping mechanism; 3760. First conveyor track; 3761. Seventh clamping assembly; 3762. Second drive member;

[0074] 38. Plastic cover assembly device; 380. First drive mechanism; 3801. Fifth drive motor; 3802. Moving plate; 3803. Fifth sub-frame; 3804. Fifth slide rail; 3805. Fifth slider; 381. Assembly manipulator; 3811. Base; 38121. Lifting motor; 38122. Guide column; 3813. Eleventh clamping assembly; 38131. Eleventh clamping drive member; 38132. Tenth A clamping member; 3814, a fourth alignment rod; 38151, a rotating motor; 38152, a third rotating shaft; 38153, a sleeve; 38154, a rotating head; 38155, a first spring member; 38156, a coupling; 382, ​​a fourth assembly mechanism; 3820, a fourth sub-frame; 3821, a fourth alignment assembly; 38211, a fourth alignment driver; 38212, a fourth alignment member; 383, a sixth vibration plate;

[0075] 39. Grease adding device;

[0076] 4. Automatic riveting mechanism; 44. Second turntable; 46. Fifth assembly plate; 47. Second feeding station; 48. Riveting station; 49. Second discharging station; 41. Second riveting motor;

[0077] 5. Automatic alignment mechanism; 511. Seventh movable drive member; 512. Fifth mounting seat; 513. Alignment drive member; 514. Alignment rod;

[0078] 6. Automatic reaming mechanism; 61. Third turntable; 611. Third feeding station; 612. Reaming station; 613. Third discharging station; 614. Cleaning station; 62. Cleaning assembly; 63. Fifth rotating motor; 64. Seventh assembly plate; 65. Reaming motor; 66. Reamer; 621. Air nozzle; 622. Cleaning drive element; 623. Cleaning bracket;

[0079] 7. Handle assembly device; 71. Sixth feeding mechanism; 72. Eighth assembly mechanism; 720. Eighth movable driving member; 721. Eighth receiving member; 723. Second stop member; 724. Fifth alignment driving member; 725. Fifth alignment member; 7211. Positioning groove; 7212. Second through hole; 726. Second ejector rod;

[0080] 90, fourth frame; 91, fourth pallet conveying mechanism; 910, eighth sub-frame; 911, sixth manipulator; 912, seventh manipulator; 913, eighth drive motor; 9100, eighth slide rail;

[0081] 92, fifth pallet conveying mechanism; 920, ninth sub-frame; 921, eighth manipulator; 922, ninth manipulator; 923, ninth drive motor; 9200, ninth slide rail;

[0082] 93. The eighth assembly station;

[0083] 94. Ninth assembly station;

[0084] 8. Seat tray; 80. Chassis; 800. First circular hole; 801. First long hole; 802. Second circular hole; 81. Movable seat; 810. Third circular hole; 811. Fourth circular hole; 82. Tapered tube; 83. Adjustment rod; 831. First rod portion; 832. Second rod portion; 84. Handle member; 841. Handle bottom wall; 842. Handle side wall; 843. Handle mounting hole; 85. Paddle; 86. Connecting rod ;87. Torsion spring assembly;870. Connecting block;8700. First connecting part;8701. Second connecting part;8702. Third connecting part;8703. First through hole;8704. First clamping hole;8705. Second clamping hole;8706. Sleeve part;88. Adjusting mechanism;880. Threaded rod;881. Compression spring;882. Plastic sleeve;883. Plastic cover;885. Molded gasket;886. Flat gasket. DETAILED DESCRIPTION

[0085] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0086] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0087] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more, unless otherwise explicitly specified.

[0088] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0089] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0090] In this application, "assembly" refers to the detachable installation of parts on the pallet to be assembled, and "installation" refers to the fixed installation of parts on the pallet to be assembled.

[0091] Example 1:

[0092] like Figure 26 The seat tray 8 shown includes a chassis 80, a movable seat 81, a tapered tube 82, an adjustment rod 83, a handle 84, a paddle 85, a locking mechanism for controlling seat lifting and lowering, and an adjustment mechanism 88 for adjusting seat reclining tension. The locking mechanism includes a torsion spring assembly 87 and a connecting rod 86. The torsion spring assembly 87 includes a fixedly connected connecting block and a first torsion spring. The movable seat 81 is hinged to the chassis 80 via the connecting rod 86. The connecting block is loosely mounted on the connecting rod 86. The torsion spring is fixedly connected to the connecting block and can generate a force on the tapered tube 82. The adjustment mechanism 88 includes a threaded rod 880, a compression spring 881 mounted on the threaded rod, a plastic sleeve 882, a plastic cover 883, an adjustment nut 8831, a molded gasket 885, and a flat gasket 886.

[0093] It is worth noting here that the installation structure and position structure between the various components of the seat tray 8 in this embodiment are basically the same as those of the seat tray 8 in the background technology. Therefore, the installation relationship and position relationship between the various components in the seat tray 8 are not described in detail here.

[0094] It is worth noting here that the staff needs to first pass one end of the adjusting rod 83 for installing the handle piece 84 through the first long hole 801 from the inside to the outside, and make the adjusting rod 83 at the top of the first long hole 801, and then push the adjusting rod 83 to make the adjusting rod 83 move axially so that the other end of the adjusting rod 83 passes through the first circular hole 800 from the inside to the outside, and finally place the movable seat 81 at the designated position on the chassis 80, thereby completing the assembly of the tray to be assembled; that is, in the embodiment of the present application, the tray to be assembled refers to the chassis 80, the movable seat 81 and the tapered tube 82 have been assembled, and the locking mechanism, the adjustment mechanism 88 and the handle piece need to be assembled, that is, the connecting rod 86, the torsion spring assembly 87, the threaded rod 880, the plastic sleeve 882, and the spring assembly need to be assembled, and then the adjusting nut 8831 in the plastic cover 883 is threadedly engaged with the threaded rod 880, and finally the handle piece is assembled on the handle end of the adjusting rod; thereby completing the assembly of the entire seat tray.

[0095] And, assembling the threaded rod 880 on the pallet to be assembled means that the threaded rod 880 is located in the fourth circular hole 811 on the movable seat 81 and is substantially vertical;

[0096] And, assembling the plastic sleeve 882 on the pallet to be assembled means that the plastic sleeve 882 is hollowly sleeved on the threaded rod 880;

[0097] In addition, the spring assembly includes a compression spring 881, a molded gasket 885 located on the compression spring 881, and a flat gasket 886 located on the molded gasket 885. Assembling the spring assembly on the pallet to be assembled means that the compression spring 881 is loosely sleeved on the threaded rod 880, the molded gasket 885 is sleeved on the threaded rod 880, and the flat gasket 886 is sleeved on the threaded rod 880.

[0098] like Figure 1 、 Figure 2 、 Figure 7 and Figure 17 As shown, an automatic production line for seat trays includes a main frame, a first conveyor line 10, a locking mechanism assembly device 22, a threaded rod assembly device 35, a plastic sleeve assembly device 36, a spring assembly assembly device 37, a grease adding device 39, a plastic cover assembly device 38, an automatic riveting mechanism 4, an automatic alignment mechanism 5, an automatic reaming mechanism 6, a handle assembly device 7, a first pallet conveying mechanism 21, a second pallet conveying mechanism 33, a third pallet conveying mechanism 34, a fourth pallet conveying mechanism 91, a fifth pallet conveying mechanism 92, and a second conveyor line 11;

[0099] The main frame includes a first frame 20, a second frame 30, a third frame 370 and a fourth frame 90; the locking mechanism assembly device 22, the threaded rod assembly device 35 and the first pallet conveying mechanism 21 are located at the first frame 20, the plastic sleeve assembly device 36, the spring assembly device 37, the plastic cover assembly device 38, the second pallet conveying mechanism 33 and the third pallet conveying mechanism 34 are located at the second frame 30, and part of the structure of the spring assembly device 37 is located at the third frame 370, the automatic riveting mechanism 4, the automatic alignment mechanism 5, the automatic reaming mechanism 6, the handle assembly device 7, the fourth pallet conveying mechanism 91 and the fifth pallet conveying mechanism 92 are located at the fourth frame 90.

[0100] The first frame 20 is provided with a first assembly station 26, a second assembly station 27 and a third assembly station 31; the locking mechanism assembly device 22 assembles the torsion spring assembly 87 and the connecting rod 86 on the pallet to be assembled at the first assembly station 26, and assembles the torsion spring assembly 87 and the connecting rod 86 on the pallet to be assembled at the second assembly station 27; the threaded rod assembly device 35 assembles the threaded rod 880 to the pallet to be assembled at the third assembly station 31.

[0101] The second frame 30 is provided with a first feeding station 301, a fourth assembly station 302, a fifth assembly station 303, a sixth assembly station 304, a seventh assembly station 305 and a first discharging station 306; the plastic sleeve assembly device 36 puts the plastic sleeve 882 on the threaded rod 880 at the fourth assembly station 302, the spring component assembly device 37 puts the compression spring 881, the molded gasket 885 and the flat gasket 886 on the threaded rod 880 at the fifth assembly station 303, the grease adding device 39 adds grease to the threaded rod 880 at the sixth assembly station 304, and the plastic cover assembly device 38 threads the adjusting nut in the plastic cover 883 with the threaded rod 880 at the seventh assembly station 305.

[0102] The fourth frame 90 is provided with an eighth assembly station 93 and a ninth assembly station 94. The eighth assembly station 93 is located between the automatic riveting mechanism 4 and the automatic reaming mechanism 6. The automatic alignment mechanism 5 makes the torsion spring assembly 87 located in the middle position of the connecting rod 86 at the eighth assembly station 93; the handle assembly device 7 puts the handle part 84 on the adjusting rod 83 at the ninth assembly station 94. The automatic riveting mechanism 4 is used to perform riveting operations on the axial end of the threaded rod 880, and the automatic reaming mechanism 6 is used to perform reaming operations on the tapered tube 82.

[0103] In the embodiments of this application, Figure 1 and Figure 2The first conveyor line 10 includes a conveyor frame and a conveyor belt installed on the conveyor frame, a first sensor and a conveyor motor. Multiple rows of positioning blocks 101 are distributed on the conveyor belt along the moving direction of the conveyor belt. A placement station for placing the pallet to be assembled is formed between two adjacent rows of positioning blocks 101. The conveyor motor is used to drive the conveyor belt to move so as to drive the pallet to be assembled to move along the conveyor belt. The first sensor is used to detect whether the pallet to be assembled is delivered to its place.

[0104] In the embodiments of this application, Figure 22 As shown, the first pallet conveying mechanism 21 includes a first sub-frame 210 fixedly mounted on the first frame 20, and a first manipulator 211, a second manipulator 212, a third manipulator 213, a fourth manipulator 214 and a first drive motor 215 mounted on the first sub-frame 210, a first slide rail 2101 is provided on the first sub-frame 210, and the first drive motor 215 drives the first manipulator 211, the second manipulator 212, the third manipulator 213 and the fourth manipulator 214. 14 moves along the first slide rail 2101, so that the first manipulator 211 delivers the pallet to be assembled on the first conveyor line 10 to the first assembly station 26, and the second manipulator 212 delivers the pallet to be assembled from the first assembly station 26 to the second assembly station 27; and the third manipulator 213 delivers the pallet to be assembled from the second assembly station 27 to the third assembly station 31, and the fourth manipulator 214 delivers the pallet to be assembled on the third assembly station 31 to the first feeding station 301.

[0105] In the embodiment of the present application, the first manipulator 211, the second manipulator 212, and the third manipulator 213 each include a manipulator base plate A2120 slidably mounted on the first sub-frame 210, a manipulator lifting drive member 2121 mounted on the manipulator base plate A2120, and a clamping and conveying assembly 2123 mounted on the movable end of the manipulator lifting drive member 2121 for clamping the pallet to be assembled.

[0106] Further preferably, the second manipulator 212 and the third manipulator 213 further include a manipulator rotation drive member 2122, the manipulator rotation drive member 2122 is mounted on the movable end of the manipulator lifting drive member 2121, and the pinching assembly 2123 is mounted on the movable end of the manipulator rotation drive member 2122;

[0107] The second manipulator 212 rotates the to-be-assembled pallet so that the handle end of the adjustment rod 83 in the to-be-assembled pallet located at the second assembly station 27 is located on the left or right side of the second assembly station 27;

[0108] The third manipulator 213 rotates the to-be-assembled pallet so that the handle end of the adjustment rod 83 in the to-be-assembled pallet located at the third assembly station 31 is located at the front side or the rear side of the third assembly station 31 .

[0109] In an embodiment of the present application, the fourth manipulator 214 includes a manipulator base plate B2140 slidably mounted on the first sub-frame 210, and a second lifting drive member 2142 mounted on the manipulator base plate B2140; and a first mounting seat 2143 mounted on the movable end of the second lifting drive member 2142, and the first mounting seat 2143 is mounted with a third lifting drive member 2144 and a fifth clamping assembly 2145 for clamping the pallet to be assembled, and the movable end of the third lifting drive member 2144 is also mounted with a sixth clamping assembly 2146 for clamping the threaded rod 880.

[0110] In the embodiments of this application, Figure 2 As shown, the locking mechanism assembly device 22 includes a first feeding mechanism 230, a first storage mechanism 220, a first clamping mechanism 221, a three-dimensional drive component 222, a second clamping component 223, a first assembling mechanism and a first riveting mechanism; the first storage mechanism 220 is located on one side of the first frame 20 and stores a plurality of torsion spring assemblies 87, the first clamping mechanism 221 is installed on the first frame 20 and is used to send the torsion spring assembly 87 from the first storage mechanism 220 to the second clamping component 223, the second clamping component 223 is installed at the moving end of the three-dimensional drive component 222 and can be driven by the three-dimensional drive component 222 to send the torsion spring assembly 87 to the installation position in the to-be-assembled tray on the first assembly station 26;

[0111] like Figure 3 and Figure 4As shown, the first assembly mechanism includes a third bracket 245, a fourth bracket 244, a first pushing component 241 and a first receiving component 242, the third bracket 245 is fixedly mounted on the first frame 20, the first receiving component 242 is mounted on the third bracket 245, and the fourth bracket 244 is slidably mounted on the first frame 20, the first pushing component 241 includes a first pushing member 2410 and a fifth moving driving member 2411, the fifth moving driving member 2411 is mounted on the third bracket 245, the first pushing member 2410 is mounted on the fourth bracket 244, the first receiving component 242 includes a first receiving driving member 2421 and two first receiving members 2420 for receiving the connecting rod 86, the two receiving members are located between the first pushing member 2410 and the first assembly station 2 6, the first receiving driving member 2421 is used to drive the first receiving member 2420 to move and make the first receiving member 2420 have a first stop position for receiving the connecting rod 86, and a second stop position for allowing the first pushing member 2410 to have a forward and backward movement space; and when the two receiving members are in the second stop position, the fifth moving driving member 2411 drives the first pushing member 2410 to push the connecting rod 86 to move toward the first assembly station 26, and sequentially passes through the second circular hole 802 on one side of the chassis 80, the third circular hole 810 on one side of the movable seat 81, the through hole on the torsion spring assembly 87, the third circular hole 810 on the other side of the movable seat 81 and the second circular hole 802 on the other side of the chassis 80, thereby assembling the connecting rod 86 and the torsion spring assembly 87 to the tray to be assembled at the first assembly station 26;

[0112] like Figure 6 As shown, the first riveting mechanism includes a sixth movable driving member 252 and a second tightening member 253 located on the left side of the second assembly station 27, and a first riveting motor 250 and a first rotary force head 251 located on the right side of the second assembly station 27; the sixth movable driving member 252 drives the second tightening member 253 to move toward the second assembly station 27 to tighten the cap end of the connecting rod 86, and the first riveting motor 250 drives the first rotary force head 251 to rivet the axial end of the connecting rod 86; and then the torsion spring assembly 87 and the connecting rod 86 are assembled on the pallet to be assembled at the second assembly station 27.

[0113] In the embodiment of the present application, the first assembly mechanism further includes a first alignment assembly 243 mounted on a fourth bracket 244. The first alignment assembly 243 includes a first alignment rod 2430 and a fourth moving driving member 2431. The first alignment rod 2430 and the first pushing member 2410 are located on opposite sides of the first assembly station 26.

[0114] Among them, when the two first supporting members 2420 are located in the first stop position, the fourth movable driving member 2431 drives the first alignment rod 2430 to move toward the first pushing member 2410 and passes through the second circular hole 802 on one side of the chassis 80, the third circular hole 810 on one side of the movable seat 81, the through hole on the torsion spring assembly 87, the third circular hole 810 on the other side of the movable seat 81 and the second circular hole 802 on the other side of the chassis 80 in sequence, and then connects with the connecting rod 86, and moves the cap end of the connecting rod 86 to the first pushing member 2410.

[0115] This arrangement is due to the special structure of the connecting rod 86. When the connecting rod 86 is in a horizontal state with the shaft end facing forward, it is impossible to directly push the connecting rod 86 forward. Therefore, the connecting rod 86 is clamped and detached from the first supporting member 2420 through the cooperation of the first pushing component 241 and the first alignment component 243. Then, the first supporting member 2420 is moved to the second stop position so that the first pushing member 2410 has space to move forward, and then the connecting rod 86 is precisely assembled on the pallet to be assembled through the cooperation of the first pushing component 241 and the first alignment component 243.

[0116] Further preferably, the first receiving member 2420 is provided with a first receiving protrusion and a second receiving protrusion, the first receiving protrusion is located in front of the second receiving protrusion, and the first receiving driving member 2421 drives the two first receiving members 2420 to move to a first stop position in a manner close to each other, and the first receiving protrusions on the two first receiving members 2420 cooperate to form a first receiving groove 24201 for receiving the rod portion of the connecting rod 86, and the second receiving protrusions on the two first receiving members 2420 cooperate to form a second receiving groove 24202 for receiving the cap end and / or the rod portion of the connecting rod 86; wherein, the rod portion of the connecting rod 86 refers to the part between the cap end of the connecting rod 86 and the axial end of the connecting rod 86.

[0117] It is worth noting here that regarding the transmission structure of the first receiving driving member 2421 driving the two first receiving members 2420 to move toward or away from each other, reference can be made to the transmission structure of the clamping mechanism in the prior art, which will not be described in detail here.

[0118] The two first supporting members 2420 may move toward or away from each other in a straight line on a horizontal plane, or move toward or away from each other during rotation on a horizontal plane, or the two first supporting members 2420 may move toward or away from each other during rotation on a vertical plane.

[0119] Further preferably, the pushing member is provided with a receiving hole, which is adapted to the cap end of the connecting rod 86; such a configuration enables the first alignment rod 2430 to push the cap end of the connecting rod 86 into the receiving hole.

[0120] Further preferably, the axial end of the connecting rod 86 is provided with a conical hole, and the conical hole is coaxially distributed with the connecting rod 86, and the rear end of the first alignment rod 2430 is a cone that is adapted to the conical hole; such a setting facilitates the plug-in connection between the first alignment rod 2430 and the connecting rod 86; in addition, the provision of the conical hole can also facilitate the subsequent riveting of the axial end of the connecting rod 86.

[0121] Further preferably, the first alignment assembly 243 also includes an alignment block, which is fixedly mounted on the fourth bracket 244. The alignment block and the first push member 2410 are respectively located on opposite sides of the first assembly station 26. The alignment block is provided with a circular hole-shaped alignment slide 2441, and the first alignment rod 2430 is mounted on the alignment slide 2441 in a manner that can slide back and forth; in this way, when the pallet to be assembled is located at the first assembly station 26, it can further ensure that the first alignment rod 2430 can be accurately aligned with the second circular hole 802 and the third circular hole 810 on the pallet to be assembled.

[0122] In the embodiment of the present invention, Figure 27 As shown, the torsion spring assembly 87 includes a connecting block 870 and a first torsion spring mounted on the connecting block 870. The connecting block 870 includes a first connecting portion 8700, a second connecting portion 8701, and a third connecting portion 8702. The first connecting portion 8700 and the third connecting portion 8702 are respectively located on both sides of the second connecting portion 8701. A sleeve portion 8706 is provided on the second connecting portion 8701. The through hole is located in the sleeve portion 8706. The first torsion spring is sleeved and mounted on the sleeve portion 8706.

[0123] The two ends of the first torsion spring are end A and end B, which are respectively located on the upper and lower sides of the third connecting portion 8702. The third connecting portion 8702 can limit the end A of the first torsion spring from rotating upward.

[0124] In the embodiments of this application, Figure 3 and Figure 5 As shown, the locking mechanism assembly device 22 also includes a toggle component 225 for toggling the B end of the first torsion spring toward the second connecting part 8701 and a first resisting component 224 for preventing the B end of the first torsion spring from resetting. The toggle component 225 is installed on the first frame 20 and is located on one side of the three-dimensional driving component 222. The first resisting component 224 is installed on the three-dimensional driving component 222.

[0125] It is worth noting here that the three-dimensional driving component 222 means that its mobile end can move in three dimensions: up and down, left and right, and front and back, and the three-dimensional driving component 222 is a conventional existing technology and will not be described in detail here.

[0126] In the embodiment of the present invention, the second clamping assembly 223 includes a second clamping driving member 2230 and two second clamping members 2231 installed on the three-dimensional driving assembly 222, and the second clamping member 2231 is provided with a second clamping portion 22310 and a third clamping portion 22311. The connecting block 870 is provided with a first clamping hole 8704 and a second clamping hole 8705, and the first clamping hole 8704 and the second clamping hole 8705 are respectively located at the first connecting portion 8700. And on the third connecting part 8702, when the second clamping driving member 2230 drives the two second clamping members 2231 to approach each other, the second clamping parts 22310 on the two second clamping members 2231 respectively extend into the first clamping hole 8704 from both ends of the first clamping hole 8704, and the third clamping parts 22311 on the two second clamping members 2231 respectively extend into the second clamping hole 8705 from both ends of the second clamping hole 8705, thereby clamping the torsion spring assembly 87.

[0127] In this way, by clamping different positions on the connecting block 870 , the connection between the first clamping mechanism 221 and the second clamping assembly 223 is achieved.

[0128] It is further preferred that a second groove 22312 is provided on the second clamping member 2231, and the second groove 22312 is an arc groove. When the two second clamping members 2231 clamp the torsion spring assembly 87, the two second grooves 22312 are respectively located on the left and right sides of the first through hole 8703 on the connecting block 870, thereby facilitating the movement of the two first clamping members on the fifth manipulator 342; and facilitating the connecting rod 86 to pass through the first through hole 8703 on the connecting block 870 in subsequent processes.

[0129] In an embodiment of the present invention, the toggle assembly 225 includes a first movable driving member 2251 and a second bracket 2252, and the second bracket 2252 is equipped with a first rotating driving member 2253, a third rotating seat 2254 and a toggle member 2255, the third rotating seat 2254 is coaxially installed on the protruding shaft of the first rotating driving member 2253, and the toggle member 2255 is eccentrically installed on the third rotating seat 2254. The first movable driving member 2251 drives the second bracket 2252 to move back and forth in the front and rear directions so that the toggle member 2255 can move to above the torsion spring assembly 87, and the first rotating driving member 2253 drives the third rotating seat 2254 to rotate so that the toggle member 2255 can toggle the B end of the first torsion spring toward the first connecting part 8700.

[0130] In an embodiment of the present invention, a toggle notch 22550 is further provided on the toggle member 2255, and the width of the toggle notch 22550 is smaller than the width of the first torsion spring. The first resisting assembly 224 includes a second movable driving member 2242 and a first resisting member 2243 installed thereon, and the first resisting member 2243 is located between the two second clamping members 2231. The second movable driving member 2242 is used to drive the first resisting member 2243 to perform a linear reciprocating motion in a direction away from or close to the torsion spring assembly 87, wherein when the toggle member 2255 toggles the B end of the first torsion spring to the first connecting portion 8700, the second movable driving member 2242 drives the first resisting member 2243 to extend into the toggle notch 22550 and can prevent the B end of the first torsion spring from resetting.

[0131] In this way, through the joint cooperation of the toggle assembly 225 and the first resisting assembly 224, it is possible to prevent the B end of the first torsion spring from scratching the pallet to be assembled when the torsion spring assembly 87 moves in the pallet to be assembled, and to prevent the B end of the first torsion spring from breaking due to touching the pallet to be assembled.

[0132] Further preferably, the first stop member 2243 also includes a stop portion for resisting the B end of the first torsion spring, and the stop portion is located at the outer end of the first stop member 2243. The length of the stop portion is greater than the distance between the axis of the first circular hole 800 and the axis of the second circular hole 802, and the upper end surface of the stop portion does not exceed the center of the first through hole 8703 of the connecting block 870; this arrangement is to avoid the first stop member 2243 from colliding with the adjusting rod 83 and the paddle 85 in the process of smoothly sending the torsion spring assembly 87 into the tray to be assembled and making the first through hole 8703 of the connecting block 870 and the second circular hole 802 coaxially distributed.

[0133] In the embodiment of the present invention, Figure 3 and Figure 4As shown, a first bracket 261 is provided on the first assembly station 26, and the first bracket 261 is installed on the first assembly station 26 in a manner that it can move up and down. The first spring 263 is sleeved on the first bracket 261 and can provide an upward force to the first bracket 261. A first bracket 262 is provided at the top of the first bracket 261. When the tray to be assembled is installed on the first assembly station 26 through the cooperation of the positioning hole and the first positioning column, the first bracket 262 can support the adjusting rod 83 and make the adjusting rod 83 located at the top of the first long hole 801; this arrangement is made in consideration of the possibility that the adjusting rod 83 of the tray to be assembled may be separated from the first long hole 801. The situation of a circular hole 800 causes the adjusting rod 83 to fall into the bottom end of the first long hole 801 and the third circular hole 810 on the movable seat 81 and the second circular hole 802 on the chassis 80 to be non-coaxially distributed. Therefore, the first bracket 261 can ensure that the adjusting rod 83 is located at the top of the first long hole 801, so that the other end of the adjusting rod 83 can be aligned with the first circular hole 800, so as to facilitate the subsequent pushing of the other end of the adjusting rod 83 through the first circular hole 800 and thus make the paddle 85 abut against the side wall of the movable seat 81; at the same time, the movable seat 81 can be lifted so that the third circular hole 810 on the movable seat 81 is coaxially distributed with the second circular hole 802 on the chassis 80.

[0134] There is also a first tightening component installed on the first frame 20, and the first tightening component is located behind the first assembly station 26. The first tightening component includes a third movable driving member and a first tightening member. When the pallet to be assembled is installed on the first assembly station 26 through the cooperation of the positioning hole and the first positioning column, the third movable driving member drives the first tightening member to move forward and then push the adjusting rod 83 until the paddle 85 abuts against the side wall of the movable seat 81.

[0135] In the embodiments of this application, Figure 10 As shown, the threaded rod assembly device 35 includes a second vibrating feeding mechanism 350 and a second assembly mechanism installed on the first frame 20, the second assembly mechanism is located on one side of the third assembly station 31, and the fourth manipulator 212 is located above the third assembly station 31. The second vibrating feeding mechanism 350 is used to provide the threaded rod 880;

[0136] The third assembly station 31 includes a first assembly plate 311, a second rotation drive member, and a first rotation shaft 313. The first assembly plate 311 is rotatably mounted on the first frame 20 via the first rotation shaft 313. The second rotation drive member drives the first assembly plate 311 to rotate so that the first assembly plate 311 has a horizontal first rest position and an inclined second rest position.

[0137] When the first assembly plate 311 is located in the inclined second stop position, the fourth circular hole 811 on the movable seat 81 in the assembly tray is vertical; the second assembly mechanism can send the threaded rod 880 on the feeding component to the bottom of the first assembly plate 311, and then pass through the fourth circular hole 811 from bottom to top; the fourth manipulator 212 can clamp the part of the threaded rod 880 located above the fourth circular hole 811.

[0138] Further preferably, the second assembly mechanism includes a fourth clamping assembly, a first linear motion drive member 352 and a second linear motion drive member 353, wherein the first linear motion drive member 352 is vertically mounted on the first frame 20, the second linear motion drive member 353 is horizontally mounted on the movable end of the first linear motion drive member 352, and the fourth clamping assembly is mounted on the movable end of the second linear motion drive member 353;

[0139] The fourth clamping assembly includes a fourth clamping driver and two fourth clamping members 3510 ; the fourth clamping driver drives the two fourth clamping members 3510 to move closer to or away from each other, thereby clamping or releasing the threaded rod 880 .

[0140] In which, the second assembly mechanism also includes an eighth rotation driving member 354 and a ninth rotation driving member 355, the eighth rotation driving member 354 is installed on the movable end of the first linear motion driving member 352, the second linear motion driving member 353 is horizontally installed on the eighth rotation driving member 354, the ninth rotation driving member 355 is installed on the movable end of the second linear motion driving member 353, and the fourth clamping assembly is installed on the ninth rotation driving member 355.

[0141] In the embodiments of this application, Figure 8 As shown, the second pallet conveying mechanism 33 includes a fourth drive component, a slide rail member 331 forming a closed loop and a plurality of fourth assembly plates 320 for placing pallets to be assembled, and some or all of the plurality of fourth assembly plates 320 are respectively distributed on the first feeding station 301, the fourth assembly station 302, the fifth assembly station 303, the sixth assembly station 304, the seventh assembly station 305 and the first discharging station 306. The fourth drive component drives the plurality of fourth assembly plates 320 to move along the slide rail member 331 so that all the fourth assembly plates 320 flow in sequence between the first feeding station 301, the fourth assembly station 302, the fifth assembly station 303, the sixth assembly station 304, the seventh assembly station 305 and the first discharging station 306.

[0142] In an embodiment of the present application, the fourth drive assembly can drive several fourth assembly plates 320 to slide on the slide rail 331 through a chain, a synchronous belt or a steel wire rope; further preferably, the fourth drive assembly includes a fourth drive motor, a driving gear 3302, a passive gear 3303 and a chain 3304; the chain 3304 is a closed chain 3304 and is transmission-connected to the driving gear 3302, and is transmission-connected to the passive gear 3303; the driving gear 3302 and the passive gear 3303 are installed on the second frame 30 and are respectively located at the front and rear ends of the slide rail 331, thereby stretching the chain 3304, the fourth assembly plate 320 is connected to the chain 3304, and the fourth drive motor drives the chain 3304 to move, thereby driving all the fourth assembly plates 320 to move along the slide rail 331.

[0143] Further preferably, a first track forming a closed loop is provided on the inner side wall of the slide rail member 331 , and a second track 3316 forming a closed loop is provided on the outer side wall of the slide rail member 331 ;

[0144] like Figure 9 As shown, two rollers 324 are installed on the fourth assembly plate 320 , and the two rollers 324 are respectively located on the inner and outer sides of the slide rail member 331 , wherein one roller 324 is used to roll in the first track, and the other roller 324 is used to roll in the second track 3316 .

[0145] In the embodiment of the present application, the second frame 30 is further provided with two positioning assemblies, which are respectively located on both sides of the slide rail 331. The positioning assemblies include at least one third rotation driving member 3325 mounted on the second frame 30 and at least two sixth brackets 3321, at least one second rotation shaft 3322 rotatably mounted on the sixth brackets 3321, and a plurality of first positioning members 3323 fixedly mounted on the second rotation shafts 3322.

[0146] The fourth assembly plate 320 is provided with a positioning groove 323;

[0147] The third rotation driving member 3325 drives the second rotation shaft 3322 to rotate so that the first positioning members 3323 can respectively cooperate with the positioning slots 323 on the fourth assembly plates 320 located on the same side.

[0148] More preferably, a plurality of connecting members 3324 are provided which are sleeved on the second rotating shaft 3322 and fixedly connected to the second rotating shaft 3322. The third rotating driving member 3325 is a cylinder. The lower end of the connecting member 3324 is hinged to the movable end of the third rotating driving member 3325.

[0149] Alternatively, the third rotation driving member 3325 is a cylinder, and the lower end of the positioning member is hinged to the movable end of the third rotation driving member 3325.

[0150] In the embodiments of this application, Figure 9 As shown, the fourth assembly plate 320 is provided with a plurality of fourth positioning posts 321 for placing the trays to be assembled;

[0151] The upper surface of the fourth assembly plate 320 is tilted so that the fourth circular hole 811 on the movable seat 81 in the tray to be assembled is vertical;

[0152] A fourth mounting seat 322 is fixedly mounted or integrally formed on the upper surface of the fourth assembly plate 320 for supporting the threaded rod 880 in the tray to be assembled. The upper surface of the fourth mounting seat 322 is horizontal and is provided with a mounting hole that matches the shape of the cap end of the threaded hole. When the tray to be assembled is placed on the fourth assembly plate 320, the cap end of the threaded rod 880 is located in the mounting hole. This ensures that the threaded rod 880 is in a substantially vertical position.

[0153] In the embodiments of this application, Figure 11 As shown, the plastic sleeve assembly device 36 includes a second vibration plate 360, a second feeding track, a third transfer mechanism 362 and a third assembly mechanism 363. The third transfer mechanism 362 and the third assembly mechanism 363 are installed on the second frame 30, and the third assembly mechanism 363 is located on the inner side of the slide rail member 331; the second vibration plate 360 ​​and the second feeding track are located on one side of the second frame 30, and the second vibration plate 360 ​​is used to feed the plastic sleeve 882 to the second feeding track with the first bottom wall facing downward;

[0154] The third assembly mechanism 363 includes a second sub-frame 3632 and a second alignment component 3631 on the second sub-frame 3632. The second alignment component 3631 is used to make the threaded rod 880 in the pallet to be assembled vertical; the third transfer mechanism 362 transfers the plastic sleeve 882 located at the discharge port of the second vibration track to the second alignment component 3631, and makes the plastic sleeve 882 empty on the threaded rod 880; the second alignment component 3631 loosens the threaded rod 880 and makes the plastic sleeve 882 fall onto the pallet to be assembled, thereby completing the assembly of the plastic sleeve 882.

[0155] The second alignment assembly 3631 includes a second alignment driver and two second alignment members. The second alignment driver drives the two second alignment members to move closer to or away from each other during rotation to clamp or release the threaded rod 880 .

[0156] Further preferably, a vertical semicircular groove is provided on the opposite sides of the two second alignment members. When the second alignment driving member drives the two second alignment members toward each other, the two semicircular grooves cooperate to form a circular hole for making the threaded rod 880 vertical.

[0157] In the embodiment of the present application, a third alignment assembly 3633 is further provided, and the third alignment assembly 3633 is located above the second alignment assembly 3631;

[0158] When the plastic sleeve 882 is located on the second alignment component 3631 , the third alignment component 3633 is used to make the plastic sleeve 882 upright.

[0159] Further preferably, the third alignment assembly 3633 includes a third alignment driving member and two third alignment members, and the third alignment driving member drives the two third alignment members to move closer to or away from each other during the rotation process to clamp or release the plastic sleeve 882.

[0160] In an embodiment of the present application, the third transfer mechanism 362 includes a two-dimensional second drive component 3621, and a first transfer component 3622 installed on the two-dimensional second drive component 3621, the transfer component includes a transfer drive and at least two transfer components, the two-dimensional second drive component 3621 drives the at least two transfer components to extend into the plastic sleeve 882, the transfer drive drives the at least two transfer components away from each other to pick up the plastic sleeve 882, and drives the at least two moving components closer to each other to loosen the plastic sleeve 882; the two-dimensional second drive component 3621 drives the first transfer component 3622 to move to transfer the plastic sleeve 882 located at the discharge port of the second vibration track to the second alignment component 3631.

[0161] Further preferably, a groove is provided on the opposite surfaces of the two conveying members. When the two conveying members are close to each other, the two grooves cooperate to form a channel capable of accommodating the threaded rod 880.

[0162] In the embodiments of this application, Figure 12 and Figure 13 As shown, the spring assembly assembly device 37 includes a sixth assembly mechanism 372 and a third clamping mechanism 371 installed on the second frame 30, a fourth clamping mechanism 376 and a first conveying track 3760 installed on the third frame 370, and a compression spring feeding mechanism 373, a formed gasket feeding mechanism 374, and a flat gasket feeding mechanism 375 located on one side of the third frame 370;

[0163] The first conveying track 3760 is provided with a first station, a second station, a third station and a fourth station in sequence. The fourth clamping mechanism 376 includes the first conveying track 3760 located on the frame, three seventh clamping assemblies 3761 and a second driving member 3762 for driving the three seventh clamping assemblies 3761 to move. The compression spring feeding mechanism 373 places the compression spring 881 vertically on the first station. The formed gasket feeding mechanism 374 places the formed gasket 885 flatly on the compression spring 881 at the second station. The flat gasket feeding mechanism 375 places the flat gasket 886 flatly on the compression spring 881 and the formed gasket 885 at the third station to form a spring assembly.

[0164] After the three seventh clamping assemblies 3761 clamp the compression spring 881 on the first station, the compression spring 881 and the formed gasket 885 on the second station, and the spring assembly on the third station, respectively, the second driving member 3762 drives the three seventh clamping assemblies 3761 to move and deliver the compression spring 881 on the first station, the compression spring 881 and the formed gasket 885 on the second station, and the spring assembly on the third station to the second station, the third station, and the fourth station, respectively.

[0165] The sixth assembly mechanism 372 is located on the inner side of the slide rail 331. The sixth assembly mechanism 372 is used to make the threaded rod 880 on the pallet to be assembled vertical, and to make the plastic sleeve 882 on the pallet to be assembled vertical, so that the third clamping mechanism 371 can clamp the spring assembly located on the fourth workstation to the pallet to be assembled, and make the spring assembly located in the plastic sleeve 882 and sleeved on the threaded rod 880.

[0166] In the embodiments of this application, Figure 12 As shown, the third clamping mechanism 371 includes a two-dimensional third drive component 3710, a first rotating drive component 3711 and a tenth clamping component 3712. The two-dimensional third drive component 3710 is installed on the second frame 30, and the first rotating drive component 3711 is installed at the bottom end of the two-dimensional third drive component 3710 and can drive the tenth clamping component 3712 to rotate; when the tenth clamping component 3712 clamps the spring component, the two-dimensional third drive component 3710 drives the tenth clamping component 3712 to move left and right and up and down to assemble the spring component on the pallet to be assembled, and is coaxially distributed with the threaded rod 880 and the plastic sleeve 882.

[0167] In the embodiment of the present application, the sixth assembly mechanism 372 also includes a second alignment component 3631 and a third alignment component 3633 , but differs from the third assembly mechanism 363 in that the second alignment component 3631 is located above the third alignment component 3633 .

[0168] In the embodiment of the present application, the grease adding device 39 is located between the spring assembly device 37 and the plastic cover assembly device 38 .

[0169] In the embodiments of this application, Figure 14 、 15 As shown in FIG16 , the plastic cover assembly device 38 includes two fifth feeding mechanisms located on both sides of the second frame 30 for feeding out the plastic cover 883 with the opening facing downward, as well as a first driving mechanism 380, a fourth assembly mechanism 382 and two assembly manipulators 381 installed on the second frame 30. The fourth assembly mechanism 382 makes the threaded rod 880 in the tray to be assembled vertically.

[0170] The first driving mechanism 380 drives two assembly robots 381 to move: one assembly robot 381 assembles the plastic cover 883 on the fifth feeding mechanism on one side on the pallet to be assembled at the seventh assembly station 305, and the other assembly robot 381 assembles the plastic cover 883 on the fifth feeding mechanism on the other side on another pallet to be assembled at the seventh assembly station 305.

[0171] This arrangement is because during the assembly process of the adjustment mechanism 88, the plastic cover 883 needs to be threadedly engaged with the threaded rod 880 by rotating the adjustment nut, which takes much longer than the assembly of the threaded rod 880, the plastic sleeve 882 and the spring assembly. Therefore, by setting up two assembly robots 381, the time for the assembly robot 381 to grab and feed the material is saved, thereby improving the assembly efficiency of the entire adjustment mechanism 88.

[0172] Further preferably, the first driving mechanism 380 includes a fifth driving motor 3801 and a fifth sub-frame 3803, the fifth driving motor 3801 is installed on the fifth sub-frame 3803, the fifth sub-frame 3803 is provided with a fifth slide rail 3804 and a fifth slide plate, the fifth slide plate is slidably matched with the fifth slide rail 3804, and the two assembly manipulators 381 are fixedly connected to the fifth slide plate; the first driving mechanism 380 drives the fifth slide plate to move and enables the fifth slide plate to have a first stop position and a second stop position, when the slide plate is in the first stop position When the slide is in the second stop position, the left assembly robot 381 of the two assembly robots 381 grabs the plastic cover 883 on the fifth feeding mechanism, and the right assembly robot 381 of the two assembly robots 381 assembles the plastic cover 883 on the pallet to be assembled by adjusting the threaded fit of the nut and the threaded rod 880; when the slide is in the second stop position, the right assembly robot 381 grabs the plastic cover 883 on another fifth feeding mechanism, and the left assembly robot 381 assembles the plastic cover 883 on another pallet to be assembled by adjusting the threaded fit of the nut and the threaded rod 880.

[0173] In the embodiments of this application, Figure 16 As shown, the assembly robot 381 includes a base 3811, a fourth alignment rod 3814, a lifting drive assembly, a rotation drive assembly and an eleventh clamping assembly 3813 for clamping the plastic cover 883. The base 3811 is installed on the first drive mechanism 380, the rotation drive assembly is installed on the base 3811, the eleventh clamping assembly 3813 is installed on the rotation drive assembly, and the fourth alignment rod 3814 is installed on the eleventh clamping assembly 3813 or the rotation drive assembly in a manner that allows axial movement.

[0174] Further preferably, the rotary drive assembly includes a rotary motor 38151, a third rotary shaft 38152, and a sleeve 38153. The rotary motor 38151 is fixedly mounted on the base 3811. One end of the third rotary shaft 38152 is connected to the output shaft of the rotary motor 38151 via a coupling 38156. The sleeve 38153 is sleeved on the other end of the third rotary shaft 38152 and is axially movable along the third rotary shaft 38152. The sleeve 38153 and the third rotary shaft 38152 are circumferentially fixed to each other, and the eleventh clamping assembly 3813 is fixedly connected to the sleeve 38153. This arrangement is because during the threaded engagement between the adjusting nut and the threaded rod 880, the plastic cover 883 may still move in the vertical direction. Therefore, the engagement between the sleeve 38153 and the third rotary shaft 38152 can compensate for the vertical movement of the plastic cover 883.

[0175] Further preferably, a rotating head 38154 and a first spring member 38155 are provided which are sleeved on the third rotating shaft 38152 . The rotating head 38154 is fixedly connected to the base 3811 , and the two ends of the first spring member 38155 are fixedly connected to the rotating head 38154 and the sleeve 38153 respectively.

[0176] Further preferably, at least one axially extending sliding groove is provided on the third rotating shaft 38152, and at least one limiting member is provided on the inner side wall of the sleeve 38153, and the limiting member is slidably engaged with the sliding groove.

[0177] In this embodiment of the present application, an elastic buffer is further provided. The elastic buffer is installed between the fourth alignment rod 3814 and the third rotation axis 38152 to prevent rigid contact between the fourth alignment rod 3814 and the threaded rod 880. Furthermore, the elastic buffer can compensate for displacement differences during assembly of the plastic cover 883. Of course, in other embodiments, the elastic buffer can also be installed between the fourth alignment rod 3814 and the eleventh clamping assembly.

[0178] In an embodiment of the present application, the lifting drive assembly includes a lifting motor 38121, a first screw rod, a first transmission block and several guide columns 38122. The base 3811 is installed on the movable plate 3802 in the first drive mechanism 380 through several guide columns 38122 in a lifting and lowering manner. The first transmission block is fixedly connected to the base 3811 and cooperates with the first screw rod transmission. The lifting motor 38121 drives the first screw rod to rotate so that the base 3811 can be lifted up and down.

[0179] In the embodiment of the present application, the eleventh clamping assembly 3813 includes an eleventh clamping driving member 38131 and at least two eleventh clamping members 38132 evenly distributed around the circumference. The eleventh clamping driving member 38131 drives the at least two eleventh clamping members 38132 to move closer to or away from each other, thereby clamping or releasing the plastic cover 883.

[0180] In the embodiments of this application, Figure 18 As shown, the automatic riveting mechanism 4 includes a second riveting motor 41, a second riveting power head, a second turntable 44 and a second rotating motor 38151 installed on the main frame, and the second turntable 44 is provided with a second feeding station 47, a riveting station 48 and a second discharging station 49 in sequence. The second feeding station 47, the riveting station 48 and the second discharging station 49 are all provided with a fifth assembly plate 46. The second riveting motor 41 drives the second riveting power head to rotate so as to perform riveting on the axial end of the threaded rod 880 at the riveting station 48. The second rotating motor 38151 drives the second turntable 44 to rotate so that the plurality of fifth assembly plates 46 on the second turntable 44 flow between the second feeding station 47, the riveting station 48 and the second discharging station 49.

[0181] Among them, such as Figure 23 As shown, the third pallet conveying mechanism 34 includes a seventh sub-frame 341 fixedly mounted on the main frame, and a fifth manipulator 342 and a seventh drive motor 343 mounted on the seventh sub-frame 341. The seventh sub-frame 341 is provided with a seventh slide rail 3410. The seventh drive motor 343 drives the fifth manipulator 342 to move along the seventh slide rail 3410 so that the fifth manipulator 342 delivers the pallet to be assembled from the first unloading station 306 to the second feeding station 47.

[0182] In the embodiments of this application, Figure 19As shown, the automatic alignment mechanism 5 includes a seventh movable driving member 511, a fifth mounting seat 512, an alignment driving member 513 and two alignment rods 514. The fifth mounting seat 512 is installed on the movable end of the seventh movable driving member 511. The alignment driving member 513 is fixedly connected to the fifth mounting seat 512. The seventh movable driving member 511 drives the fifth mounting seat 512 to move so that the two alignment rods 514 can extend into the pallet to be assembled on the eighth assembly station 93. The alignment driving member drives the two alignment rods 514 to approach each other to prompt the torsion spring assembly 87 to move to the middle position of the connecting rod 86.

[0183] It is worth noting here that the structure of the eighth assembly station 93 is the same as that of the third assembly station 31 , wherein when the two alignment rods 514 extend into the tray to be assembled on the eighth assembly station 93 , the tray to be assembled is placed horizontally.

[0184] In the embodiments of this application, Figure 20 As shown, the automatic reaming mechanism 6 includes a third turntable 61, a cleaning assembly 62, a reaming assembly and a fifth rotating motor 63 installed on the main frame, and the third turntable 61 is provided with a third feeding station 611, a reaming station 612, a third discharging station 613 and a cleaning station 614 in sequence. The third feeding station 611, the reaming station 612, the third discharging station 613 and the cleaning station 614 are each provided with a seventh assembly plate 64 for placing a tray to be assembled, and the reaming assembly performs reaming operation on the tapered tube 82 in the tray to be assembled at the reaming station 612; the cleaning assembly 62 cleans the seventh assembly plate 64 at the cleaning station 614, and the fifth rotating motor 63 drives the third turntable 61 to rotate, so that the plurality of fifth assembly plates 46 on the third turntable 61 flow between the third feeding station 611, the reaming station 612, the third discharging station 613 and the cleaning station 614;

[0185] Among them, such as Figure 24 As shown, the fourth pallet conveying mechanism 91 includes an eighth sub-frame 910 fixedly mounted on the main frame, and a sixth manipulator 911, a seventh manipulator 912 and an eighth drive motor 913 mounted on the eighth sub-frame 910. The eighth sub-frame 910 is provided with an eighth slide rail 9100. The eighth drive motor 913 drives the sixth manipulator 911 and the seventh manipulator 912 to move along the eighth slide rail 9100, so that the sixth manipulator 911 delivers the pallet to be assembled from the second discharging station 49 to the automatic alignment mechanism 5; and enables the seventh manipulator 912 to deliver the pallet to be assembled from the automatic alignment mechanism 5 to the third feeding station 611.

[0186] In the embodiments of this application, Figure 27As shown, the handle member 84 includes an integrally formed handle bottom wall 841 and a handle side wall 842 , and the handle side wall 842 is provided with a handle mounting hole 843 that is interference-fitted with the handle end of the adjustment rod 83 ;

[0187] like Figure 21 As shown, the adjusting rod 83 includes a first rod portion 831 and a second rod portion 832 that are integrally bent. The first rod portion 831 is mounted on the tray to be assembled, and the handle end of the adjusting rod 83 is located at the outer end of the second rod portion 832 .

[0188] In the embodiments of this application, Figure 21 As shown, the handle assembly device 7 includes a sixth feeding mechanism 71 and an eighth assembly mechanism 72, the eighth assembly mechanism 72 includes an eighth moving drive member 720, an eighth receiving member 721, a second stop member 723, a fifth alignment drive member 724 and two fifth alignment members 725, the eighth receiving member 721 is slidably mounted on the fifth frame, the second stop member 723 and the eighth receiving member 721 are respectively located on the opposite sides of the adjustment rod 83, the second stop member 723 is used to resist the first rod portion 831, the fifth alignment drive member 724 drives the two fifth alignment members 725 to move closer to or away from each other so as to clamp or release the second rod portion 832, and when the second rod portion 832 is clamped, the handle end of the adjustment rod 83 can be directed toward the eighth receiving member 721, the The eighth receiving member 721 is used to receive the handle member 84 delivered by the sixth feeding mechanism 71 and can align the handle mounting hole 843 on the handle member 84 with the handle end of the adjusting rod 83. The eighth movable driving member 720 drives the eighth receiving member 721 to move back and forth and can enable the handle member 84 to be sleeved on the handle end of the adjusting rod 83; it is arranged in this way because the handle member 84 is mainly installed on the adjusting rod 83 through the interference fit of the handle mounting hole 843 and the handle end of the adjusting rod 83, that is, the fitting accuracy requirement between the mounting hole and the handle end of the adjusting rod 83 is very high. Therefore, the position accuracy of the adjusting rod 83 is ensured by the fifth alignment component 3821, and the position accuracy of the handle member 84 is ensured by cooperating with the positioning groove 7211 with the handle member 84.

[0189] Preferably, a second resisting driving member is further provided. The second resisting member 723 is slidably mounted on the fifth frame. The second resisting driving member drives the second resisting member 723 to move back and forth and resist the first rod portion 831 .

[0190] Preferably, the eighth receiving member 721 is provided with a positioning groove 7211 for receiving the handle member 84, and one side of the positioning groove 7211 is open so that the handle member 84 can be mounted on the handle end of the adjusting rod 83, and the side wall of the positioning groove 7211 cooperates with the handle side wall 842 of the handle member 84 so that the handle mounting hole 843 faces the handle end of the adjusting rod 83.

[0191] Preferably, an ejection assembly mounted on the fifth frame is further provided, the ejection assembly including an ejection drive member and a first ejection rod, the bottom wall of the positioning groove 7211 is provided with a second through hole 7212, the first ejection drive member is used to drive the first ejection rod to move up and down along the second through hole 7212 to eject the handle member 84 out of the positioning groove 7211; this is arranged because when the eighth receiving member 721 pushes the handle member 84 to be sleeved on the handle end of the adjustment rod 83, the handle member 84 will be stuck in the positioning groove 7211 due to the large thrust. Considering the positional relationship of the handle member 84, the clamping force of the seat tray 8 only by the tray conveying mechanism is not enough to allow the handle member 84 to detach from the positioning groove 7211, but will cause the seat tray 8 to fall off the tray conveying mechanism. Therefore, the handle member 84 is ejected by providing the first ejection rod.

[0192] like Figure 25 As shown, the fifth pallet conveying mechanism 92 includes a ninth sub-frame 920 fixedly mounted on the fourth frame 90, and an eighth manipulator 921, a ninth manipulator 922 and a ninth drive motor 923 mounted on the ninth sub-frame 920. The ninth sub-frame 920 is provided with a ninth slide rail 9200. The ninth drive motor 923 drives the eighth manipulator 921 and the ninth manipulator 922 to move along the ninth slide rail 9200, so that the eighth manipulator 921 delivers the pallet to be assembled from the automatic reaming mechanism 6 to the handle assembly device 7; and enables the ninth manipulator 922 to deliver the pallet to be assembled from the handle assembly device 7 to the second conveyor line 11.

[0193] It is worth noting here that the fifth robot 342, the sixth robot 911, the seventh robot 912, the eighth robot 921 and the ninth robot 922 have the same structure as the first robot 211; they will not be described in detail here.

[0194] In the embodiment of the present application, the second conveying line 11 completes the conveyance of the seat tray 8 through a conveyor belt, a roller or an inclined conveying track.

[0195] An automatic assembly method for a seat tray 8; the specific steps are as follows:

[0196] S1: The locking mechanism assembly device 22 assembles the torsion spring assembly 87 and the connecting rod 86 on the pallet to be assembled at the first assembly station 26;

[0197] S2: The locking mechanism assembly device 22 assembles the torsion spring assembly 87 and the connecting rod 86 on the pallet to be assembled at the second assembly station 27;

[0198] S3: The threaded rod assembly device 35 assembles the threaded rod 880 onto the pallet to be assembled at the third assembly station 31;

[0199] S4: The plastic sleeve assembly device 36 puts the plastic sleeve 882 onto the threaded rod 880 at the fourth assembly station 302;

[0200] S5: The spring assembly assembly device 37 puts the compression spring 881, the formed gasket 885 and the flat gasket 886 onto the threaded rod 880 at the fifth assembly station 303;

[0201] S6: The plastic cover assembly device 38 threads the adjusting nut in the plastic cover 883 into the threaded rod 880 at the seventh assembly station 305;

[0202] S7: The handle assembly device 7 sleeves the handle member 84 onto the adjusting rod 83 at the ninth assembly station 94 .

[0203] Further preferably, the specific steps of assembling the connecting rod 86 on the pallet to be assembled in S1 are as follows:

[0204] Step 1: The first feeding mechanism 230 places the connecting rod 86 flat on the first receiving member 2420 located at the first stop position;

[0205] Step 2: The fourth movable driving member 2431 drives the first alignment rod 2430 to sequentially pass through the second circular hole 802 on one side of the chassis 80, the third circular hole 810 on one side of the movable seat 81, the first through hole 8703 on the torsion spring assembly 87, the third circular hole 810 on the other side of the movable seat 81, and the second circular hole 802 on the other side of the chassis 80, and then plug into the connecting rod 86, and move the cap end of the connecting rod 86 onto the first pushing member 2410;

[0206] Step 3: The first receiving driving member 2421 drives the first receiving member 2420 to move to the second stop position;

[0207] Step 4: The fifth movable driving member 2411 drives the first pushing member 2410 to push the connecting rod 86 to move toward the first assembly station 26; and makes the connecting rod 86 pass through the second circular hole 802 on one side of the chassis 80, the third circular hole 810 on one side of the movable seat 81, the first through hole 8703 on the torsion spring assembly 87, the third circular hole 810 on the other side of the movable seat 81 and the second circular hole 802 on the other side of the chassis 80 in sequence, and then assemble the connecting rod 86 to the pallet to be assembled.

[0208] Further preferably, the specific steps of assembling the torsion spring assembly 87 on the pallet to be assembled in S1 are as follows:

[0209] Step 1: The first clamping mechanism 221 clamps the torsion spring assembly 87 onto the second clamping assembly 223 , and positions the first connecting portion 8700 toward the first assembly station 26 ;

[0210] Step 2: Use the toggle member 2255 to toggle the B end of the first torsion spring toward the second connecting portion 8701. The first stopper 2243 moves above the first torsion spring to prevent the B end of the first torsion spring from returning to its original position. Then, the toggle member 2255 returns to its initial position.

[0211] Step 3: The three-dimensional driving assembly 222 drives the torsion spring assembly 87 to move toward the first assembly station 26 and sends the torsion spring assembly 87 to the installation position in the assembly tray;

[0212] Step 4: The fifth movable driving member 2411 drives the first pushing member 2410 to push the connecting rod 86 to move toward the first assembly station 26; and makes the connecting rod 86 pass through the second circular hole 802 on one side of the chassis 80, the third circular hole 810 on one side of the movable seat 81, the first through hole 8703 on the torsion spring assembly 87, the third circular hole 810 on the other side of the movable seat 81 and the second circular hole 802 on the other side of the chassis 80 in sequence, and then assembles the torsion spring assembly 87 onto the pallet to be assembled.

[0213] Further preferably, the specific process of assembling the torsion spring assembly 87 and the connecting rod 86 on the pallet to be assembled in S2 is as follows:

[0214] The sixth moving driving member 252 drives the second pressing member 253 to move toward the second assembly station 27 to press the cap end of the connecting rod 86 , and the first riveting motor 250 drives the first rotary force head 251 to press the shaft end of the connecting rod 86 .

[0215] Further preferably, the specific process of assembling the threaded rod 880 onto the pallet to be assembled in S3 is as follows:

[0216] When the first assembly plate 311 is at the second stop position, the second assembly mechanism sends the threaded rod 880 to the bottom of the first assembly plate 311 and then passes through the fourth circular hole 811 from bottom to top.

[0217] More preferably, the specific steps of putting the plastic sleeve 882 onto the threaded rod 880 in S4 are as follows:

[0218] Step 1: The second alignment driving member drives the two second alignment members to move closer to each other so that the threaded rod 880 in the tray to be assembled is vertical;

[0219] Step 2: The plastic sleeve 882 feeding mechanism feeds the plastic sleeve 882 with its opening facing downward onto the two second alignment members, and allows the plastic sleeve 882 to be loosely sleeved on the threaded rod 880;

[0220] Step 3: The third alignment driving member drives the two third alignment members to move closer to each other so that the plastic sleeve 882 is vertical;

[0221] Step 4: The second alignment driver drives the two second alignment members away from each other to loosen the threaded rod 880, and then the third alignment driver drives the two third alignment members away from each other to loosen the plastic sleeve 882, so that the plastic sleeve 882 falls onto the pallet to be assembled to complete the assembly.

[0222] Further preferably, the specific steps of putting the compression spring 881, the formed gasket 885 and the flat gasket 886 on the threaded rod 880 in S5 are as follows:

[0223] Step 1: The compression spring 881 feeding mechanism 373 places the compression spring 881 vertically on the first station. The formed gasket 885 feeding mechanism 374 places the formed gasket 885 flatly on the compression spring 881 at the second station. The flat gasket 886 feeding mechanism 375 places the flat gasket 886 flatly on the compression spring 881 and the formed gasket 885 at the third station to form a spring assembly.

[0224] Step 2: The three seventh clamping assemblies 3761 respectively clamp the compression spring 881 on the first station, the compression spring 881 and the formed gasket 885 on the second station, and the spring assembly on the third station. The second driving member 3762 drives the three seventh clamping assemblies 3761 to move, thereby delivering the compression spring 881 on the first station, the compression spring 881 and the formed gasket 885 on the second station, and the spring assembly on the third station to the second station, the third station, and the fourth station, respectively.

[0225] Step 3: The third clamping mechanism 371 sleeves the spring assembly located at the fourth station onto the threaded rod 880 .

[0226] Further preferably, the specific steps of threading the adjusting nut in the plastic cover 883 and the threaded rod 880 in S6 are as follows:

[0227] Step 1: The first drive mechanism 380 drives the assembly robot 381 to move to grab the plastic cover 883 with the opening facing downward at the outlet of the fifth feeding mechanism, and then drives the assembly robot 381 to move above the pallet to be assembled; and during this process, the fourth alignment assembly 3821 clamps the threaded rod 880 or the compression spring 881 mounted on the threaded rod 880 to make the threaded rod 880 vertical;

[0228] Step 2: The assembly robot 381 is lowered so that the fourth alignment rod 3814 abuts against the threaded rod 880 to fix the threaded rod 880, and the plastic cover 883 is put on the threaded rod 880;

[0229] Step 3: The assembly robot 381 rotates so that the adjusting nut in the plastic cover 883 is threadedly engaged with the threaded rod 880, thereby assembling the plastic cover 883 on the tray to be assembled.

[0230] More preferably, the specific steps of sleeve-mounting the handle 84 on the adjustment rod 83 in S7 are as follows:

[0231] Step 1: The fifth alignment driving member 724 drives the two fifth alignment members 725 toward each other to clamp the second rod portion 832, thereby making the handle end of the adjustment rod 83 face the eighth receiving member 721; and at the same time, the sixth feeding mechanism 71 places the handle member 84 on the eighth receiving member 721, and makes the handle mounting hole 843 on the handle member 84 align with the handle end of the adjustment rod 83;

[0232] Step 2: The eighth movable driving member 720 drives the eighth receiving member 721 to move so that the handle member 84 is sleeved on the handle end of the adjusting rod 83.

[0233] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0234] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and should not be construed as limiting the present application. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application without departing from the principles and purpose of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An automatic production line for seat trays, characterized in that; The invention comprises a first conveyor line (10), a locking mechanism assembly device (22), a threaded rod assembly device (35), a plastic sleeve assembly device (36), a spring assembly assembly device (37), a plastic cover assembly device (38), a handle assembly device (7), a pallet conveying device, a second conveyor line (11), a first assembly station (26), a second assembly station (27), a third assembly station (31), a first feeding station (301), a fourth assembly station (302), a fifth assembly station (303), and a seventh assembly station The pallet conveying device is used to transport the pallet to be assembled from the first conveyor line (10) to the first assembly station (26), the second assembly station (27), the third assembly station (31), the first feeding station (301), the fourth assembly station (302), the fifth assembly station (303), the seventh assembly station (305), the first discharging station (306), the ninth assembly station (94) and the second conveyor line (11) in sequence. The locking mechanism assembly device (22) assembles the torsion spring assembly (87) and the connecting rod (86) on the to-be-assembled pallet at the first assembly station (26), and assembles the torsion spring assembly (87) and the connecting rod (86) on the to-be-assembled pallet at the second assembly station (27). The threaded rod assembly device (35) assembles the threaded rod (880) on the to-be-assembled pallet at the third assembly station (31); the plastic sleeve assembly device (36) assembles the plastic sleeve (882) in an empty position at the fourth assembly station (302). On the threaded rod (880), the spring assembly assembly device (37) sleeves the compression spring (881), the molded gasket (885) and the flat gasket (886) onto the threaded rod (880) at the fifth assembly station (303); the plastic cover assembly device (38) screws the adjusting nut in the plastic cover (883) into the threaded rod (880) at the seventh assembly station (305); and the handle assembly device (7) sleeves the handle member (84) onto the adjusting rod (83) at the ninth assembly station (94); The threaded rod assembly device (35) includes a second vibration feeding mechanism (350) and a second assembly mechanism for providing the threaded rod (880), the second assembly mechanism being located on one side of the third assembly station (31), and the second assembly mechanism delivering the threaded rod (880) at the second vibration feeding mechanism (350) to the third assembly station (31), and being capable of passing the axial end of the threaded rod (880) through the fourth circular hole (811) on the movable seat (81) from bottom to top; and the fourth manipulator being capable of clamping the portion of the threaded rod (880) located above the fourth circular hole (811).

2. The automatic production line of a seat tray according to claim 1, characterized in that: The locking mechanism assembly device (22) comprises a first feeding mechanism (230), a first storage mechanism (220), a first clamping mechanism (221), a three-dimensional driving component (222), a second clamping component (223), a first assembling mechanism and a first riveting mechanism; the first clamping mechanism (221) is used to feed the torsion spring component (87) from the first storage mechanism (220) to the second clamping component (223); the second clamping component (223) is installed at the moving end of the three-dimensional driving component (222) and can be driven by the three-dimensional driving component (222) to feed the torsion spring component (87) to the second clamping component (223); To the installation position in the tray to be assembled on the first assembly station (26); the first feeding mechanism (230) sends the connecting rod (86) to the first assembly mechanism, and the first assembly mechanism drives the connecting rod (86) to pass through the second circular hole (802) on one side of the chassis (80), the third circular hole (810) on one side of the movable seat (81), the through hole on the torsion spring assembly (87), the third circular hole (810) on the other side of the movable seat (81) and the second circular hole (802) on the other side of the chassis (80) in sequence, and then assembles the connecting rod (86) and the torsion spring assembly (87) onto the tray to be assembled; The first riveting mechanism and the second assembly station (27) perform riveting operations on the axial end of the connecting rod (86) so as to assemble the connecting rod (86) and the torsion spring assembly (87) onto the pallet to be assembled.

3. The automatic production line of a seat tray according to claim 1, characterized in that: The plastic sleeve assembly device (36) comprises a second vibration plate (360), a second feeding track, a third transfer mechanism (362) and a second sub-frame (3632), wherein the second vibration plate (360) and the second feeding track are located on one side of the fourth assembly station (302), and the second vibration plate (360) is used to transfer the plastic sleeve (882) to the second feeding track; The second sub-frame (3632) is located on the other side of the fourth assembly station (302), and the second sub-frame (3632) is installed with a second alignment component (3631) and a third alignment component (3633). The third alignment component (3633) is located above the second alignment component (3631). The third transfer mechanism (362) transfers the plastic sleeve (882) located at the discharge port of the second vibration track to the second alignment component (3631), and makes the plastic sleeve (882) empty on the threaded rod (880). The second alignment component (3631) clamps the threaded rod (880) in the tray to be assembled so that the threaded rod (880) is placed upright and then released. The third alignment component (3633) clamps the plastic sleeve (882) on the second alignment component (3631) so that the plastic sleeve (882) is placed upright and then released, thereby completing the assembly of the plastic sleeve (882).

4. The automatic production line of a seat tray according to claim 1, characterized in that: The spring assembly assembly device (37) includes a sixth assembly mechanism (372), a third clamping mechanism (371), a fourth clamping mechanism (376), a first conveying track (3760), a compression spring feeding mechanism (373), a formed gasket feeding mechanism (374), and a flat gasket feeding mechanism (375); The first conveying track (3760) is provided with a first station, a second station, a third station and a fourth station in sequence, the fourth clamping mechanism (376) includes three seventh clamping assemblies (3761) and a second driving member (3762) for driving the three seventh clamping assemblies (3761) to move, the compression spring feeding mechanism (373) places the compression spring (881) vertically on the first station, the forming gasket feeding mechanism (374) places the forming gasket (885) flat on the compression spring (881) at the second station, and the flat gasket feeding mechanism (375) places the flat gasket (886) flat on the compression spring (881) and the forming gasket (885) at the third station to form a spring assembly; After the three seventh clamping assemblies (3761) respectively clamp the compression spring (881) on the first station, the compression spring (881) and the formed gasket (885) on the second station, and the spring assembly on the third station, the second driving member (3762) drives the three seventh clamping assemblies (3761) to move and deliver the compression spring (881) on the first station, the compression spring (881) and the formed gasket (885) on the second station, and the spring assembly on the third station to the second station, the third station, and the fourth station respectively; The sixth assembly mechanism (372) is used to make the threaded rod (880) on the pallet to be assembled vertical, and to make the plastic sleeve (882) on the pallet to be assembled vertical, so that the third clamping mechanism (371) can clamp the spring assembly located on the fourth station to the pallet to be assembled, and make the spring assembly be located in the plastic sleeve (882) and sleeved on the threaded rod (880).

5. The automatic production line of a seat tray according to claim 1, characterized in that: The plastic cover assembly device (38) includes a fifth feeding mechanism, a first driving mechanism (380), a fourth assembly mechanism (382) and an assembly robot (381), wherein the fifth feeding mechanism is used to feed out the plastic cover (883) with the opening facing downward, and the fourth assembly mechanism (382) makes the threaded rod (880) in the tray to be assembled vertically; the first driving mechanism (380) drives the assembly robot (381) to move, so that the assembly robot (381) clamps the plastic cover (883) on the fifth feeding mechanism and then engages with the threaded rod (880) in a threaded manner, thereby assembling the plastic cover (883) on the tray to be assembled at the seventh assembly station (305).

6. The automatic production line of a seat tray according to claim 1, characterized in that: The handle member (84) includes an integrally formed handle bottom wall (841) and a handle side wall (842), and the handle side wall (842) is provided with a handle mounting hole (843) that is interference-fitted with the handle end of the adjustment rod (83); the adjustment rod (83) includes an integrally bent first rod portion (831) and a second rod portion (832), the first rod portion (831) being mounted on the tray to be assembled, and the handle end of the adjustment rod (83) being located at the outer end of the second rod portion (832); The handle assembly device (7) comprises a sixth feeding mechanism (71) and an eighth assembly mechanism (72), wherein the eighth assembly mechanism (72) comprises an eighth moving driving member (720), an eighth receiving member (721), a second blocking member (723), a fifth alignment driving member (724) and two fifth alignment members (725), wherein the second blocking member (723) is used to resist the first rod portion (831), and the fifth alignment driving member (724) drives the two fifth alignment members (725) to move closer to or farther from each other so as to move the second rod portion (832) closer to or farther from each other. ) is clamped or released, and when the second rod portion (832) is clamped, the handle end of the adjusting rod (83) is directed toward the eighth receiving member (721), the eighth receiving member (721) is used to receive the handle member (84) delivered by the sixth feeding mechanism (71) and enable the handle mounting hole (843) on the handle member (84) to align with the handle end of the adjusting rod (83), the eighth moving driving member (720) drives the eighth receiving member (721) to move back and forth and enable the handle member (84) to be sleeved on the handle end of the adjusting rod (83).

7. The automatic production line of a seat tray according to claim 1, characterized in that: The pallet conveying device includes a second pallet conveying mechanism (33), the second pallet conveying mechanism (33) includes a fourth drive component, a slide rail member (331) forming a closed loop and a plurality of fourth assembly plates (320) for placing pallets to be assembled, part or all of the plurality of fourth assembly plates (320) are respectively distributed on the first feeding station (301), the fourth assembly station (302), the fifth assembly station (303), the seventh assembly station (305) and the first discharging station (306), the fourth drive component drives all the fourth assembly plates (320) to move along the slide rail member (331), and in the process of all the fourth assembly plates (320) moving along the slide rail member (331), all the fourth assembly plates (320) flow between the first feeding station (301), the fourth assembly station (302), the fifth assembly station (303), the seventh assembly station (305) and the first discharging station (306).

8. The automatic production line of a seat tray according to claim 1, characterized in that: An eighth assembly station (93), an automatic riveting mechanism (4), an automatic alignment mechanism (5) and an automatic reaming mechanism (6) are also provided, wherein the eighth assembly station (93) is located between the first discharge station (306) and the ninth assembly station (94); The automatic riveting mechanism (4) is located between the first discharge station (306) and the eighth assembly station (93) and is used to perform riveting on the shaft end of the threaded rod (880); The automatic alignment mechanism (5) moves the torsion spring assembly to the middle position of the connecting rod (86) at the eighth assembly station (93); The automatic reaming mechanism (6) is located between the eighth assembly station (93) and the ninth assembly station (94) and is used to perform reaming operations on the tapered tubes (82) in the assembly tray.

9. The automatic production line of a seat tray according to claim 8, characterized in that: The automatic riveting mechanism (4) includes a second riveting motor (41), a second riveting power head, a second turntable (44) and a second rotating motor (38151), the second turntable (44) is provided with a second feeding station (47), a riveting station (48) and a second discharging station (49) in sequence, the second feeding station (47), the riveting station (48) and the second discharging station (49) are each provided with a fifth assembly plate (46), the second riveting motor (41) drives the second riveting power head to rotate so as to perform riveting on the axial end of the threaded rod (880) at the riveting station (48), the second rotating motor (38151) drives the second turntable (44) to rotate so that a plurality of fifth assembly plates (46) on the second turntable (44) are transferred between the second feeding station (47), the riveting station (48) and the second discharging station (49); The automatic reaming mechanism (6) includes a third turntable (61), a cleaning component (62), a reaming component and a fifth rotating motor (63). The third turntable (61) is provided with a third feeding station (611), a reaming station (612), a third discharging station (613) and a cleaning station (614) in sequence. The third feeding station (611), the reaming station (612), the third discharging station (613) and the cleaning station (614) are each provided with a seventh assembly plate (64) for placing a tray to be assembled. The reaming component performs reaming operation on the conical tube (82) in the tray to be assembled at the reaming station (612); the cleaning component (62) cleans the seventh assembly plate (64) at the cleaning station (614). The fifth rotating motor (63) drives the third turntable (61) to rotate so that several fifth assembly plates ( 46) circulates between the third feeding station (611), the reaming station (612), the third discharging station (613) and the cleaning station (614); The pallet conveying device further comprises a first manipulator (211) for conveying the pallet to be assembled on the first conveying line (10) to the first assembly station (26), a second manipulator (212) for conveying the pallet to be assembled from the first assembly station (26) to the second assembly station (27), a third manipulator (213) for conveying the pallet to be assembled from the second assembly station (27) to the third assembly station (31), a fourth manipulator (214) for conveying the pallet to be assembled from the third assembly station (31) to the first feeding station (301), and a fourth manipulator (215) for conveying the pallet to be assembled from the first discharging station ( 306) is sent to the fifth robot (342) of the second feeding station (47), is used to send the pallet to be assembled from the second discharging station (49) to the sixth robot (911) of the eighth assembly station (93), is used to send the pallet to be assembled from the eighth assembly station (93) to the seventh robot (912) of the third feeding station (611), is used to send the pallet to be assembled from the third discharging station (613) to the ninth assembly station (94), and is used to send the pallet to be assembled from the ninth assembly station (94) to the second conveyor line (11).

Images