Gas spring automatic assembly line

Abstract

The application relates to an air spring automatic assembly line and belongs to the technical field of air spring manufacturing. The application provides an air spring automatic assembly line, which comprises a rod pipe assembly station, a gasket loading station and an oil seal guide seat assembly station. The rod pipe assembly station is used for preassembling a rod body and a pipe body into an integrated body to form a rod pipe assembly. The gasket loading station is used for loading a gasket into the interior of the pipe body and fixing the gasket in the interior of the pipe body. The oil seal guide seat assembly station is used for loading an oil seal and a guide seat into the interior of the pipe body. The rod pipe assembly station, the gasket loading station and the oil seal guide seat assembly station are sequentially distributed along a material conveying direction. Compared with a traditional air spring assembly line, the air spring automatic assembly line can realize automatic assembly of air springs, improves production efficiency, reduces labor cost, and guarantees product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas spring manufacturing, in particular to an automatic gas spring assembly line. BACKGROUND

[0002] A gas spring is a part that can realize functions such as support, buffering, braking, height and angle adjustment, etc. In engineering machinery, it is mainly applied to cover, door and other parts.

[0003] However, the traditional gas spring assembly line still adopts the form of "belt transportation + setting manual position" for mass production, which not only has low production efficiency and high labor cost, but also has poor product consistency and cannot guarantee product quality. SUMMARY

[0004] Therefore, the present application provides an automatic gas spring assembly line, which can realize automatic assembly of the gas spring, improve production efficiency, reduce labor cost, and guarantee product quality.

[0005] Some embodiments of the present application provide an automatic gas spring assembly line, which comprises: a rod-tube assembly station for pre-assembling a rod body and a tube body into one body to form a rod-tube assembly; a gasket loading station for loading a gasket into the inside of the tube body and fixing it in the inside of the tube body; an oil seal and guide seat assembly station for loading an oil seal and a guide seat into the inside of the tube body; the rod-tube assembly station, the gasket loading station and the oil seal and guide seat assembly station are sequentially distributed along the material conveying direction.

[0006] Compared with the traditional gas spring assembly line, the automatic gas spring assembly line in the embodiments of the present application can realize automatic assembly of the gas spring, improve production efficiency, reduce labor cost, and guarantee product quality.

[0007] In addition, the automatic gas spring assembly line according to the embodiments of the present application also has the following additional technical features:

[0008] According to some embodiments of the present application, the automatic gas spring assembly line further comprises a tube body oiling station, which is arranged before the rod-tube assembly station, and is used for spraying oil into the inside of the tube body. Through the tube body oiling station, manual operation can be replaced to spray oil into the inside of the tube body.

[0009] According to some embodiments of the present application, the gasket loading station comprises: a gasket pre-assembly station for sleeving a gasket on the rod body in the rod-tube assembly; and a tube wall spinning station, which is connected to the gasket pre-assembly station, and is used for pushing the gasket into the inside of the tube body and spinning a groove on the outside of the tube body in the circumferential direction to limit the position of the gasket in the length direction of the tube body. Through this arrangement, the gasket can be positioned in the inside of the tube body automatically.

[0010] According to some embodiments of the present application, the oil seal guide seat assembly station comprises: a rod body pulling-in station for pulling the rod body out of the pipe body so that the end of the rod body is located at a first preset position; an oil seal pre-assembly station for sleeving the oil seal into the rod body from the first preset position and positioning it at a second preset position; a guide seat pre-assembly station for sleeving the guide seat into the rod body from the first preset position and positioning it at a third preset position; and an oil seal guide seat pipe-in station for pushing the oil seal and the guide seat into the pipe body. Through this arrangement, the oil seal and the guide seat can be automatically assembled into the pipe body.

[0011] According to some embodiments of the present application, the oil seal guide seat pipe-in station comprises: an outer bushing rod assembling device for pushing the oil seal and the guide seat into the pipe body; and a position detection device mounted on the outer bushing rod assembling device for detecting whether the outer bushing rod assembling device has traveled to the position to determine whether the oil seal guide seat assembly is qualified. Through this arrangement, the oil seal and the guide seat can be accurately assembled into the pipe body, and the qualified materials can be screened out to ensure the product qualification rate.

[0012] According to some embodiments of the present application, the gas spring automatic assembly line further comprises a closing station arranged after the oil seal guide seat assembly station for spinning a closing on the open side of the pipe body to form an un-inflated gas spring. Through the closing station, the pipe opening closing process can be automatically performed.

[0013] According to some embodiments of the present application, the gas spring automatic assembly line further comprises an inflation station arranged after the oil seal guide seat assembly station for inflating nitrogen into the inner cavity of the un-inflated gas spring. Through the inflation station, the gas spring can be automatically inflated.

[0014] According to some embodiments of the present application, the inflation station comprises: an inflation mechanism for inflating gas into the circumferential gap of the gas spring; and a pressure sensor arranged at the rear side of the inflation mechanism for detecting the force of the rod body pressing against the pipe body. Through this arrangement, the qualified gas spring after inflation can be screened out to ensure the product qualification rate.

[0015] According to some embodiments of the present application, the gas spring automatic assembly line further comprises a material conveying system, which comprises: a conveying device for positioning the pipe body and moving it along its traveling direction; a pipe body feeding station for feeding the pipe body, the pipe body feeding station being connected to the feeding side of the conveying device; a rod body feeding station for feeding the rod body, the rod body feeding station being connected to the rod-pipe assembly station; and a gas spring discharging station for discharging the gas spring, the gas spring discharging station being connected to the discharging side of the conveying device. Through this arrangement, the materials can be automatically conveyed, and the structure is simple and easy to assemble.

[0016] According to some embodiments of the present application, the gas spring automatic assembly line further comprises: a washer vibration feeding mechanism, which is connected with the washer loading station; a guide seat vibration feeding mechanism, which is connected with the oil seal guide seat assembly station; and an oil seal vibration feeding mechanism, which is connected with the oil seal guide seat assembly station. Through this arrangement, the washer, guide seat and oil seal can be automatically fed, improving the assembly efficiency.

[0017] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 The first perspective view of the gas spring automatic assembly line provided by the embodiments of the present application;

[0020] Figure 2 The second perspective view of the gas spring automatic assembly line provided by the embodiments of the present application;

[0021] Figure 3 The third perspective view of the gas spring automatic assembly line provided by the embodiments of the present application;

[0022] Figure 4 The structure schematic view of the pipe body feeding station in the gas spring automatic assembly line provided by the embodiments of the present application;

[0023] Figure 5 The structure schematic view of the pipe body oiling station in the gas spring automatic assembly line provided by the embodiments of the present application;

[0024] Figure 6 The structure schematic view of the rod-pipe assembly station in the gas spring automatic assembly line provided by the embodiments of the present application;

[0025] Figure 7 The structure schematic view of the rod-pipe assembly station in the gas spring automatic assembly line provided by the embodiments of the present application; Figure 1 The enlarged view of A in the middle (embodiment of the rod into the cylinder guide mechanism);

[0026] Figure 8 The structure schematic view of the washer pre-assembly station in the gas spring automatic assembly line provided by the embodiments of the present application;

[0027] Figure 9 A structure schematic diagram of a tube wall spinning station in the air spring automatic assembly line provided by the embodiment of the present application;

[0028] Figure 10 A structure schematic diagram of a closing station in the air spring automatic assembly line provided by the embodiment of the present application;

[0029] Figure 11 A structure schematic diagram of an inflation station in the air spring automatic assembly line provided by the embodiment of the present application;

[0030] Figure 12 A working principle diagram of the air spring automatic assembly line provided by the embodiment of the present application;

[0031] Figure 13 A structure schematic diagram of the air spring assembled by the air spring automatic assembly line provided by the embodiment of the present application.

[0032] Icon: 100-air spring automatic assembly line; 10-tube body oiling station; 11-oil injection pipe; 111-first end of oil injection pipe; 112-second end of oil injection pipe; 12-oil pipe driving mechanism; 20-rod tube assembly station; 21-rod cylinder entering guide mechanism; 22-tail push rod mechanism; 23-rod pushing mechanism; 231-rod body groove; 232-pushing mechanism; 30-gasket loading station; 31-gasket pre-assembly station; 311-sliding table air cylinder; 312-guide die; 3121-flange; 32-tube wall spinning station; 321-spinning mechanism; 322-lifting lifting mechanism; 323-anti-rotation clamp jaw; 33-gasket vibration feeding mechanism; 40-oil seal guide seat assembly station; 41-rod body pulling into position station; 42-oil seal pre-assembly station; 43-guide seat pre-assembly station; 44-oil seal guide seat pipe entering station; 441-outer bushing rod loading device; 45-guide seat vibration feeding mechanism; 46-oil seal vibration feeding mechanism; 50-closing station; 51-spinning closing mechanism; 52-closing pushing mechanism; 60-inflation station; 61-inflation supporting plate; 62-inflation mechanism; 63-inflation driving air cylinder; 70-material conveying system; 71-tube body feeding station; 711-tube body material groove; 712-lifting feeding mechanism; 713-temporary storage table; 72-rod body feeding station; 73-air spring discharging station; 74-conveying device; 741-conveying device feeding side; 742-conveying device discharging side; 743-chain driving mechanism; 744-chain assembly; 746-downward positioning mechanism; 800-air spring; 810-tube body; 811-groove; 812-closing; 820-rod body; 821-rod body body; 822-piston; 823-piston cover; 824-sealing ring; 830-gasket; 840-oil seal; 850-guide seat; 860-flat head; 870-circumferential gap. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor fall within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships in which the products of the present application are usually placed, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the description of the present application, the assembly process of the gas spring 800 is taken as an example to describe the structure and working principle of the gas spring automatic assembly line 100 of the embodiments of the present application.

[0039] Please refer to Figure 13, the gas spring 800 comprises a tube body 810, a rod body 820, a washer 830, an oil seal 840, a guide seat 850 and a flat head 860. The rod body 820 comprises a rod body body 821, a piston 822, a piston cover 823 and a sealing ring 824.

[0040] In some embodiments of the present application, the rod body 820 is an off-line assembly or an off-the-shelf product, and the assembly process thereof will not be described further herein.

[0041] Please refer to Figure 1 and Figure 2 , the gas spring automatic assembly line 100 of the embodiments of the present application comprises a rod-tube assembly station 20, a washer loading station 30 and an oil seal guide seat assembly station 40. The rod-tube assembly station 20 is used to pre-assemble the rod body 820 and the tube body 810 into one body to form a rod-tube assembly; the washer loading station 30 is used to load the washer 830 into the interior of the tube body 810 and fix it inside the tube body 810; the oil seal guide seat assembly station 40 is used to load the oil seal 840 and the guide seat 850 into the interior of the tube body 810. The rod-tube assembly station 20, the washer loading station 30 and the oil seal guide seat assembly station 40 are sequentially distributed along the material conveying direction.

[0042] Compared with the traditional gas spring assembly line, the gas spring automatic assembly line 100 in the embodiments of the present application can realize automatic assembly of the gas spring, improve the production efficiency, reduce the labor cost, and ensure the product quality.

[0043] Please refer to Figure 1 and Figure 2 , the structure and mutual connection relationship of each component of the gas spring automatic assembly line 100 of the embodiments of the present application.

[0044] In the description of the present application, the gas spring automatic assembly line 100 further comprises a rack, and the rod-tube assembly station 20, the washer loading station 30 and the oil seal guide seat assembly station 40 are arranged in the rack.

[0045] In some embodiments of the present application, the gas spring automatic assembly line 100 further comprises a material conveying system 70 to realize the feeding of the tube body 810 and the rod body 820 and the movement of the tube body 810.

[0046] Please refer to Figure 2 , the material conveying system 70 comprises a tube body feeding station 71, a rod body feeding station 72, a gas spring discharging station 73 and a conveying device 74.

[0047] The conveying device 74 is arranged in the rack and comprises a conveying device feeding side 741 and a conveying device discharging side 742. The conveying device 74 is used to position the tube body 810 and carry the tube body 810 to move along its running direction (the first direction), and stop at each station for assembly work by other stations.

[0048] Please refer to Figure 3 As an example, the conveying device 74 includes a chain drive mechanism 743, a chain assembly 744, and a pressing positioning mechanism 746. The chain drive mechanism 743 is arranged on the frame and can drive the chain assembly 744 to move, and the upper surface of the chain assembly 744 conveys the pipe body 810 in the first direction. The outer side of the chain assembly 744 is provided with a plurality of sets of clamping jaws at intervals along the direction of travel, and each set of clamping jaws is used to position one pipe body 810 in the second direction. When the chain assembly 744 moves, it drives a plurality of pipe bodies 810 to travel, and when assembly is needed, the chain assembly 744 stops moving to keep the pipe body 810 at the corresponding station. The pressing positioning mechanism 746 is fixed to the frame and located above the chain assembly 744, and can move downward when the chain assembly 744 stops moving, so as to press the pipe body 810 on the clamping jaw onto the chain assembly 744, facilitating the processing of the pipe body 810 by other stations.

[0049] The distance between two adjacent stations is a multiple of the distance between two adjacent pipe bodies on the conveying device 74. In this form, when the conveying device 74 stops running, each station can simultaneously perform assembly work, improving assembly efficiency.

[0050] The pipe body loading station 71 is connected to the loading side 741 of the conveying device, and is used to load the pipe body 810.

[0051] Please refer to Figure 4 As an example, the pipe body loading station 71 includes a pipe body storage tank 711, a lifting loading mechanism 712, and a temporary storage table 713, and a plurality of pipe bodies 810 are stored in the pipe body storage tank 711. The lifting loading mechanism 712 is provided with a plurality of pipe body clamping grooves, and the pipe bodies 810 are sequentially clamped into the pipe body clamping grooves. The lifting loading mechanism 712 sequentially lifts the plurality of pipe bodies 810 in the pipe body storage tank 711 to the temporary storage table 713, and the temporary storage table 713 sends the pipe bodies 810 one by one to the loading side 741 of the conveying device, so that one pipe body 810 falls into a set of clamping jaws.

[0052] Further, the temporary storage table 713 is downwardly inclined, and the temporary storage table 713 is provided with an intercepting plate and a clamping plate. The intercepting plate extends along the length direction of the pipe body 810 and can protrude from the temporary storage table 713. After the pipe body 810 is lifted by the lifting loading mechanism 712 to the high side of the temporary storage table 713, it rolls to the low side under the action of gravity. The intercepting plate is lowered according to the assembly rhythm to allow one pipe body 810 to fall into the conveying device 74. The clamping plate can be adjusted in the second direction to guide the pipe body 810 to roll from the high side to the bottom side of the temporary storage table 713 together with the edge plate of the temporary storage table 713, and the axis direction of the pipe body 810 is consistent with the second direction during the rolling process.

[0053] The rod loading station 72 is connected to the rod-pipe assembly station 20, and is used for loading the rod 820.

[0054] Please refer to Figure 2 As an example, the rod loading station 72 includes a rod storage tank, which stores a plurality of rods 820 and is connected to the rod-pipe assembly station 20. The rod storage tank is inclined downward, and the rods 820 are loaded one by one to the rod-pipe assembly station 20 under the action of gravity.

[0055] The gas spring unloading station 73 is used for unloading the gas spring 800 without the flat head 860.

[0056] As an example, the gas spring unloading station 73 includes a lower slide plate and a finished product storage tank, and the lower slide plate is connected to the unloading side of the conveying device. When the gas spring 800 reaches the unloading side 742 of the conveying device, the chain assembly 744 is turned outward, and the gas spring 800 falls onto the lower slide plate and then enters the finished product storage tank.

[0057] In some embodiments of the present application, the gas spring automatic assembly line 100 further includes a pipe body oiling station 10, which is arranged before the rod-pipe assembly station 20 and is used for spraying oil into the pipe body 810.

[0058] Please refer to Figure 5 As an example, the pipe body oiling station 10 includes an oil injection pipe 11, an oil pipe driving mechanism 12, and an oil pipe fixing plate. The oil injection pipe 11 is fixed to the oil pipe fixing plate, and the two ends of the oil injection pipe 11 are an oil injection pipe first end 111 and an oil injection pipe second end 112, respectively. The oil injection pipe first end 111 is connected to an external oil source. The oil pipe driving mechanism 12 is fixed to the rack and can drive the oil pipe fixing plate to move back and forth along the second direction, so as to drive the oil injection pipe 11 to extend forward and make the oil injection pipe second end 112 extend into the interior of the pipe body 810 for oil injection, and then reset backward after oil injection.

[0059] The oil pipe driving mechanism 12 is a common linear guide rail or a sliding table air cylinder, and the oil pipe fixing plate is slidably connected to the rack through the guide rail.

[0060] The rod-pipe assembly station 20 is used for pre-assembling the rod 820 and the pipe body 810 into an integrated rod-pipe assembly.

[0061] Please refer to Figure 6 and Figure 7As an example, the rod-tube assembly station 20 includes a rod cylinder entry guide mechanism 21, a tail rod pushing mechanism 22, and a rod pushing-in mechanism 23. The tail rod pushing mechanism 22 is arranged outside the conveying device 74 and is used to push against the tail of the tube body 810; the rod cylinder entry guide mechanism 21 is arranged between the conveying device 74 and the rod pushing-in mechanism 23 and is used to hold the middle and front section of the tube body 810 to ensure the axial position thereof; the rod pushing-in mechanism 23 is connected to the rod body feeding station 72, the rod body feeding station 72 feeds one rod body 820 to the rod pushing-in mechanism 23 at a time, and the rod pushing-in mechanism 23 pushes the rod body 820 forward into the tube body 810 along the second direction and then resets and retreats.

[0062] The rod pushing-in mechanism 23 includes a rod body slot 231 and a pushing-in mechanism 232, the rod body slot 231 is connected to the rod body feeding station 72, and the pushing-in mechanism 232 is capable of pushing the rod body 820 forward along the second direction to push the rod body 820 into the tube body 810.

[0063] The gasket loading station 30 is used to load the gasket 830 into the tube body 810 and fix the gasket 830 inside the tube body 810.

[0064] Please refer to Figure 1 In some embodiments of the present application, the gasket loading station 30 includes a gasket pre-assembly station 31 and a tube wall spinning station 32. The gasket pre-assembly station 31 is located behind the rod-tube assembly station 20 along the conveying direction of the conveying device 74 and is used to sleeve the gasket 830 into the rod body 820 in the rod-tube assembly along the second direction. The tube wall spinning station 32 is located behind the gasket pre-assembly station 31 along the conveying direction of the conveying device 74 and is used to push the gasket 830 into the tube body 810 and spin a groove 811 on the outside of the tube body 810 in the circumferential direction to limit the position of the gasket 830 in the length direction of the tube body 810.

[0065] Please refer to Figure 8 As an example, the gasket pre-assembly station 31 includes a sliding table pushing assembly, which is used to push the gasket 830 into the rod body 820 along the second direction and place the gasket 830 inside the tube body 810.

[0066] The sliding table pushing assembly includes a sliding table cylinder 311 and a guide die 312. The guide die 312 is hollow inside and is used to pass the rod body 820 therethrough; the front end of the guide die 312 is provided with a flange 3121, which is used to push the gasket 830.

[0067] When the guide die 312 is located at the original position at the rear, one gasket 830 is fed to the front end of the flange 3121, and the sliding table cylinder 311 drives the guide die 312 to move forward along the second direction and push the gasket 830. The hole wall of the gasket 830 is clamped on the inclined surface of the flange 3121. The guide die 312 pushes the gasket 830 forward to the preset mounting position and then retreats, thereby realizing the pre-assembly of the gasket 830.

[0068] In some embodiments of the present application, the guide die 312 pre-assembles the gasket 830 to the portion of the rod 820 exposed outside the tube 810.

[0069] In other embodiments, the guide die 312 can also enter the tube 810 and push the gasket 830 into the portion of the rod 820 inside the tube 810.

[0070] Further, the gasket pre-assembly station 31 further comprises an axial positioning clamp jaw arranged between the slide advancing assembly and the conveying device 74 in the second direction, for clamping the tube 810 so that the axial direction of the tube 810 coincides with the axial direction of the guide die 312 when the slide advancing assembly is loaded with the gasket 830.

[0071] As an example form, the tube wall spinning station 32 is used to push the gasket 830 into the tube 810 and spin a groove 811 on the tube wall of the tube 810.

[0072] Please refer to Figure 9 , in particular, the tube wall spinning station 32 comprises an anti-rotation clamp jaw 323, a spinning mechanism 321 and a lifting mechanism 322. The anti-rotation clamp jaw 323, the spinning mechanism 321 and the lifting mechanism 322 are all fixed to the frame, and the anti-rotation clamp jaw 323 is used to clamp the tail of the tube 810 and prevent the tube 810 from rotating.

[0073] The spinning mechanism 321 can move from an original position to a spinning position to push the gasket 830 into the tube 810, and at the spinning position, the spinning mechanism 321 can wrap around the tube 810 from the front of the tube 810 and spin a ring groove on the outer surface of the tube 810.

[0074] The spinning mechanism 321 comprises a support plate, a spinning assembly and a spinning advancing mechanism. The support plate is slidingly fitted to the frame, the spinning assembly is mounted to the support plate, and the spinning advancing mechanism can drive the support plate to move from the original position to the spinning position. When the support plate moves away from the original position, the lifting mechanism retracts.

[0075] The spinning assembly comprises a motor, a die core, a sliding sleeve, a rolling cutter and a sliding sleeve advancing mechanism. The motor is mounted to the support plate and is in transmission connection with the die core, the die core and the sliding sleeve are slidingly fitted, the rolling cutter is radially arranged on the tube wall of the die core, and the sliding sleeve advancing mechanism can drive the sliding sleeve to slide forward relative to the die core in the second direction so that the rolling cutter acts on the surface of the tube 810.

[0076] Further, the mold core is internally provided with a pushing pipe which is coaxially fixed to the output end of the motor and has a gap between the pushing pipe and the mold core for cooperating with the pipe body 810, and a cavity in the pushing pipe for inserting the rod body 820, and the front end of the pushing pipe protrudes from the front end of the mold core for pushing the gasket 830. During the movement of the support plate from the original position to the spinning position, the pushing pipe covers the rod body 820 and pushes the gasket 830 into position, the sliding sleeve is further pushed into position, the mold core drives the hob to rotate to spin the groove on the peripheral wall of the pipe body 810, and the gasket 830 is sealed in the pipe body 810.

[0077] The lifting and lifting mechanism 322 is arranged between the chain assembly 744 and the spinning mechanism 321, and can extend and lift the front part of the pipe body 810 before the anti-rotation clamp jaw 323 and the downward positioning mechanism 746 fix the pipe body 810, and can retract when the spinning mechanism 321 leaves the original position.

[0078] The oil seal guide seat assembly station 40 is used to assemble the oil seal 840 and the guide seat 850 into the inside of the pipe body 810.

[0079] Please refer to Figure 2 In some embodiments of the present application, the oil seal guide seat assembly station 40 includes a rod body pulling into position station 41, an oil seal pre-assembly station 42, a guide seat pre-assembly station 43, and an oil seal guide seat into pipe station 44, which are arranged in sequence along the material conveying direction (first direction).

[0080] The rod body pulling into position station 41 is used to pull the rod body 820 out of the pipe body 810, so that the end of the rod body 820 is located at a first predetermined position.

[0081] As an example form, the rod body pulling into position station 41 includes a pulling cylinder, a rod body clamp jaw, and a limiting plate, the pulling cylinder is fixed to the rack and used to drive the rod body clamp jaw to move forward to a predetermined position along the second direction, then the rod body clamp jaw clamps the rod body 820, and the pulling cylinder drives the rod body clamp jaw to reset, so as to pull the rod body 820 away from the pipe body 810. The limiting plate is arranged at the back side of the rod body clamp jaw, and when the pulling cylinder drives the rod body clamp jaw to reset, the end of the rod body 820 abuts against the limiting plate, so that the end of the rod body 820 is located at the first predetermined position.

[0082] The oil seal pre-assembly station 42 is used to sleeve the oil seal 840 into the rod body 820 from the first predetermined position and position it at a second predetermined position; the guide seat pre-assembly station 43 is used to sleeve the guide seat 850 into the rod body 820 from the first predetermined position and position it at a third predetermined position.

[0083] The oil seal pre-assembly station 42 and the guide seat pre-assembly station 43 are similar to the gasket pre-assembly station 31 in structure and principle, except that the flanges at the front ends of the guide dies of the oil seal pre-assembly station 42 and the guide seat pre-assembly station 43 are cylindrical.

[0084] The oil seal and guide seat entering tube station 44 is used to push the oil seal 840 and the guide seat 850 into the inner tube 810.

[0085] As an example form of the oil seal and guide seat entering tube station 44, the oil seal and guide seat entering tube station 44 includes an outer bushing mounting rod device 441 used to push the oil seal 840 and the guide seat 850 into the inner tube 810, and a position detection device (not shown in the figure) mounted on the outer bushing mounting rod device 441 and used to detect whether the outer bushing mounting rod device 441 has traveled to the position to determine whether the oil seal 840 and the guide seat 850 are assembled properly.

[0086] For the material with proper assembly of the oil seal 840 and the guide seat 850, the material is further sent to the closing station 50 by the conveying device 74.

[0087] The closing station 50 is arranged after the oil seal and guide seat assembly station 40 and is used to spin the closing portion 812 on the open side of the inner tube 810 to form the un-inflated gas spring.

[0088] Please refer to Figure 10 As an example form, the closing station 50 includes a spinning closing mechanism 51 and a closing advancing mechanism 52. The spinning closing mechanism 51 and the closing advancing mechanism 52 are both mounted on the rack. The spinning closing mechanism 51 is slidably mounted on the rack in the second direction, and the closing advancing mechanism 52 is capable of advancing the spinning closing mechanism 51 to the fourth preset position. When the pressing positioning mechanism 746 presses and clamps the inner tube 810, the spinning closing mechanism 51 performs closing on the inner tube 810 at the fourth preset position.

[0089] In some embodiments of the present application, the gas spring automatic assembly line 100 further includes an inflating station 60 arranged after the closing station 50 and used to inflate nitrogen into the inner cavity of the un-inflated gas spring.

[0090] Please refer to Figure 11As an example, the inflating station 60 includes an inflating mechanism and a pressure sensor (not shown in the figure), the inflating mechanism includes an inflating support plate 61, an inflating mechanism 62 and an inflating drive cylinder 63. The inflating support plate 61 is slidingly fitted to the rack along the second direction, and the inflating mechanism 62 is installed on the inflating support plate 61. The inflating drive cylinder 63 is installed on the rack and can drive the inflating support plate 61 to slide forward (i.e. the second direction) relative to the rack, so that the inflating mechanism 62 reaches the fifth preset position. When the lower positioning mechanism 746 presses and clamps the pipe body 810, the inflating drive cylinder 63 drives the inflating mechanism 62 to move, so that the inflating mechanism 62 can be inflated into the circumferential gap 870 of the gas spring 800 at the fifth preset position.

[0091] The pressure sensor is arranged at the rear side of the inflating mechanism 62 in the second direction, and is used to detect the force of the rod body 820 pressing against the pipe body 810 during the inflating process. By detecting the force of the rod body 820 pressing against the pipe body 810, the internal cavity pressure of the gas spring 800 can be indirectly calculated, and then it can be judged whether the inflating is qualified.

[0092] For the qualified gas spring, it is further sent to the gas spring unloading station 73 by the conveying device 74 and unloaded.

[0093] Please refer to Figure 3 Optionally, the gas spring automatic assembly line 100 further includes a gasket vibration feeding mechanism 33, a guide seat vibration feeding mechanism 45 and an oil seal vibration feeding mechanism 46.

[0094] The gasket vibration feeding mechanism 33 is connected with the gasket loading station 30, and one gasket 830 is fed to the gasket pre-assembly station 31 each time; the guide seat vibration feeding mechanism 45 is connected with the oil seal guide seat assembly station 40, and one guide seat 850 is fed to the guide seat pre-assembly station 43 each time; and the oil seal vibration feeding mechanism 46 is connected with the oil seal guide seat assembly station 40, and one oil seal 840 is fed to the oil seal pre-assembly station 42 each time.

[0095] Taking the connection between the gasket vibration feeding mechanism 33 and the gasket pre-assembly station 31 as an example, the gasket vibration feeding mechanism 33 is arranged on the rack, the output end is connected with the gasket pre-assembly station 31, and the vibration-fed gasket 830 is sequentially fed to the front end of the guide die 312. When the guide die 312 moves forward along the second direction, the flange 3121 abuts against the inner hole of the gasket 830 and drives the gasket 830 to move forward.

[0096] Please refer to Figure 12 The working process of the gas spring automatic assembly line in the embodiment of the application is described below:

[0097] A plurality of tube bodies 810 are placed into the tube body feeding groove 711 of the tube body feeding station 71, a plurality of rod bodies 820 are placed into the rod body feeding groove of the rod body feeding station 72, and the gasket vibration feeding mechanism 33, the guide seat vibration feeding mechanism 45 and the oil seal vibration feeding mechanism 46 respectively store a plurality of gaskets 830, a plurality of guide seats 850 and a plurality of oil seals 840;

[0098] The conveying device 74 moves the tube body 810 to the tube body oil feeding station 10 to spray oil into the inside of the tube body 810;

[0099] The conveying device 74 moves the tube body 810 to the rod-tube assembly station 20 to assemble the rod body 820 and the tube body 810 into an integrated rod-tube assembly;

[0100] The conveying device 74 moves the rod-tube assembly to the gasket loading station 30 to load the gasket 830 into the inside of the tube body 810 and fix the gasket 830 in the inside of the tube body 810;

[0101] The conveying device 74 moves the rod-tube assembly to the oil seal-guide seat assembly station 40 to load the oil seal 840 and the guide seat 850 into the inside of the tube body 810 and detect whether the oil seal-guide seat assembly is qualified;

[0102] The conveying device 74 moves the rod-tube assembly with qualified oil seal-guide seat assembly to the necking station 50 to spin the necking 812 at the opening side of the tube body 810 to form an un-inflated gas spring;

[0103] The conveying device 74 moves the un-inflated gas spring to the inflation station 60 to inflate nitrogen into the inner cavity of the un-inflated gas spring and detect whether the inflation is qualified;

[0104] The conveying device 74 moves the gas spring with qualified inflation to the gas spring discharging station 73 and discharges the gas spring;

[0105] The flat head 860 is assembled to the rod body 820 offline.

[0106] Compared with the traditional gas spring assembly line, the gas spring automatic assembly line 100 in the embodiment can realize automatic assembly of the gas spring 800, improve production efficiency, reduce labor cost, and ensure product quality.

[0107] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0108] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air spring automatic assembly line characterized by, The air spring automatic assembly line comprises: a rack; a rod-tube assembly station for pre-assembling a rod body and a tube body into one, forming a rod-tube assembly; a gasket loading station for loading a gasket into the interior of the tube body and fixing the gasket in the interior of the tube body; an oil seal and guide seat assembly station for loading an oil seal and a guide seat into the interior of the tube body; the rod-tube assembly station, the gasket loading station and the oil seal and guide seat assembly station are sequentially arranged along a material conveying direction; the gasket loading station comprises: a gasket pre-assembly station for sleeving a gasket on the rod body in the rod-tube assembly; a tube wall spinning station, which is connected to the gasket pre-assembly station, for pushing the gasket into the interior of the tube body and spinning a groove on the exterior of the tube body in a circumferential direction to limit the position of the gasket in the length direction of the tube body; the tube wall spinning station comprises a rotation-preventing clamp jaw, a spinning mechanism and a lifting mechanism, all of which are fixed to the rack, the rotation-preventing clamp jaw is used for clamping the tail of the tube body and preventing the tube body from rotating, and the spinning mechanism can be moved from an original position to a spinning position to push the gasket into the interior of the tube body, and the spinning mechanism can wrap around the tube body from the front of the tube body and spin a groove on the exterior of the tube body in a circumferential direction at the spinning position.

2. The gas spring automatic assembly line according to claim 1, wherein The air spring automatic assembly line further comprises a tube body oiling station, which is arranged before the rod-tube assembly station, and is used for spraying oil into the interior of the tube body.

3. The gas spring automatic assembly line according to claim 1, wherein The oil seal and guide seat assembly station comprises: a rod body pulling station for pulling the rod body out of the tube body so that the end of the rod body is located at a first preset position; an oil seal pre-assembly station for sleeving an oil seal on the rod body from the first preset position and positioning the oil seal at a second preset position; a guide seat pre-assembly station for sleeving a guide seat on the rod body from the first preset position and positioning the guide seat at a third preset position; an oil seal and guide seat loading station for pushing the oil seal and the guide seat into the interior of the tube body.

4. The gas spring automatic assembly line according to claim 3, wherein The oil seal and guide seat loading station comprises: an outer bushing rod loading device for pushing the oil seal and the guide seat into the interior of the tube body; a position detection device, which is installed on the outer bushing rod loading device, is used for detecting whether the outer bushing rod loading device has traveled to a position, so as to determine whether the oil seal and guide seat assembly is qualified.

5. The gas spring automatic assembly line of claim 1, wherein The air spring automatic assembly line further comprises a closing station, which is arranged after the oil seal and guide seat assembly station, and is used for spinning a closing on the opening side of the tube body to form an un-inflated air spring.

6. The gas spring automatic assembly line of claim 1, wherein The air spring automatic assembly line further comprises an inflation station, which is arranged after the oil seal and guide seat assembly station, and is used for inflating nitrogen into the inner cavity of the un-inflated air spring.

7. The gas spring automatic assembly line of claim 6, wherein The inflation station comprises: an inflation mechanism for inflating nitrogen into the circumferential gap of the air spring; a pressure sensor, which is arranged on the rear side of the inflation mechanism, is used for detecting the force of the rod body pressing against the tube body.

8. The gas spring automatic assembly line of claim 1, wherein, The air spring automatic assembly line further comprises a material conveying system, which comprises: a conveying device, which is used for positioning the tube body and moving the tube body along its traveling direction; a tube body loading station, which is used for loading the tube body, and is connected to the loading side of the conveying device; a rod body loading station, which is used for loading the rod body, and is connected to the rod-tube assembly station. The gas spring unloading station is used for unloading the gas spring, and is connected with the unloading side of the conveying device.

9. The gas spring automatic assembly line of claim 1, wherein, The gas spring automatic assembly line further comprises: A gasket vibration feeding mechanism connected with the gasket loading station; A guide seat vibration feeding mechanism connected with the oil seal guide seat assembly station; An oil seal vibration feeding mechanism connected with the oil seal guide seat assembly station. An oil seal vibration feeding mechanism connected with the oil seal guide seat assembly station.

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