A device for automatically installing O-rings into bearing outer ring grooves

Abstract

The present invention discloses a device for automatically loading O-rings into outer ring grooves of bearings, comprising a frame, a first conveying assembly connected to the frame and a second conveying assembly arranged at one side of the frame, two assembly stations are arranged in sequence above the second conveying assembly, a flipping station is arranged on the frame between the two assembly stations, the second conveying assembly is used to transport the bearings to move in sequence, the assembly stations comprise: a barrel; a feeding device for transporting the O-rings to the bottom of the assembly device; an assembly device for assembling the O-rings into the bearings, a bearing lifting device for lifting the bearings on the frame to the position of the stretched O-rings, the assembly device comprises a lifting platform, a separation plate that can be lifted and lowered relative to the lifting platform, and a moving needle extending vertically from the bottom of the separation plate, the moving needle is opened to grab and stretch the O-rings on the placement block, the separation plate descends to push the O-rings into the outer groove of the bearing, and the O-rings are automatically loaded into the bearings.

Description

Technical Field

[0001] The invention relates to the technical field of bearing assembly, and in particular to a device for automatically installing an O-ring into a bearing outer ring groove. Background Art

[0002] At present, there is a kind of bearing on the market, which has one or two sealing grooves on the outer wall of the bearing. O-rings need to be installed in the sealing grooves to increase the tightness between the outer ring of the bearing and the bearing seat, so as to prevent the outer ring from slipping during the operation of the bearing, facilitate the installation of the bearing when the radial clearance is matched, and reduce the vibration of the bearing during operation.

[0003] However, the diameter of the existing O-rings for assembled bearings is usually about 1 mm, the structure is soft and easily deformed, and it cannot form a complete circle when placed flat on a horizontal plane. In addition, when assembling bearings, they are all installed manually, the assembly efficiency is low, the labor intensity of workers is high, and the bearing housing or O-ring is damaged due to human errors and work fatigue, which is not conducive to the product qualification rate. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a device for automatically installing an O-ring into a bearing outer ring groove, which facilitates assembly and improves work efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A device for automatically installing an O-ring into a bearing outer ring groove, comprising a frame, a first conveying assembly connected to the frame, and a second conveying assembly arranged on one side of the frame, two assembly stations are arranged in sequence above the second conveying assembly, a flipping station is arranged between the two assembly stations on the frame, the second conveying assembly is used to transport the bearings in sequence, and the assembly stations include:

[0006] A barrel, used for storing the O-rings, wherein the lower portion of the barrel is opened for the O-rings to fall into;

[0007] A feeding device is used to transport the O-ring to the bottom of the assembly device, the feeding device includes a mobile platform arranged near the lower part of the barrel, a placement block and a lifting assembly are arranged at the end of the mobile platform, the placement block is provided with a ring groove for the O-ring to fall into, and the lifting assembly is used to lift the O-ring in the ring groove;

[0008] An assembly device, used for assembling the O-ring into the bearing, the assembly device comprising a lifting platform, a separation plate that can be lifted and lowered relative to the lifting platform, a moving needle vertically extending from the bottom of the separation plate, and a driving assembly arranged on the lifting platform, the driving assembly being connected to the moving needle, the lifting platform descends and the driving assembly drives the moving needle to open to grab and open the O-ring on the placement block, and the O-ring is vertically constrained on the moving needle;

[0009] A bearing lifting device is arranged at the lower part of the frame, and is used to lift the bearing on the frame to the position of the stretched O-ring, and the separation plate descends to push the O-ring into the outer groove of the bearing.

[0010] Furthermore, the flipping station includes a flipping cylinder arranged on one side of the frame, a bearing receptacle arranged on the output end of the flipping cylinder, and a frame sub-body, the frame sub-body having a connecting portion flush with the bearing conveying end surface of the frame and an arc-shaped portion for flipping the bearing receptacle, the second conveying assembly transports the bearing to the bearing receptacle, and the second conveying assembly transports the bearing to the next station after the flipping cylinder is actuated. Through the above improvements, the frame sub-body connects the two frames under the two assembly stations, reducing the processing difficulty of the arc-shaped portion for flipping the bearing receptacle.

[0011] Furthermore, the bearing lifting device includes a bearing lifting cylinder vertically arranged at the bottom of the frame and a centering module arranged on the output end of the bearing lifting cylinder, the centering module includes a centering portion matching the inner hole of the bearing and a supporting portion for supporting the bearing, the centering portion is in the shape of a cone partially extending into the bearing, through the above improvements, the outer diameter of the top of the centering portion is smaller than the inner diameter of the bearing, so that the top of the centering portion can at least partially extend into the inner ring of the bearing, and the outer wall of the centering portion constitutes a guide surface, thereby guiding the bearing to be inserted into the centering portion, ensuring the precise assembly of the bearing and the O-ring.

[0012] Furthermore, two guide rods are provided on the centering module, and the two guide rods are respectively arranged at two ends of the centering module that are far away from each other, and the lower part of the guide rod is passed through the bearing lifting cylinder. Through the above improvements, the movement of the centering module when the bearing lifting cylinder is actuated is reduced.

[0013] Further, a first detection assembly is provided at the initial end of the frame, the first detection assembly includes a first sensor arranged at one side of the frame and a detection claw elastically contacting the first sensor, the detection claw includes two detection protrusions partially extending in the frame, and the two detection protrusions are respectively arranged corresponding to the two outer grooves of the bearing;

[0014] A second detection assembly is disposed at the end of the frame. The second detection assembly includes two optical fiber sensors disposed at one side of the frame. The two optical fiber sensors are disposed corresponding to two outer grooves of the bearing respectively.

[0015] Furthermore, it also includes a rejection component electrically connected to the first detection component and the second detection component, the rejection component includes a first pushing cylinder and a material receiving track which are relatively arranged on both sides of the frame, the material receiving track is arranged at the lower part of the frame, and a second pushing cylinder is also provided at the lower part of the end of the frame, and a material guide seat is provided on one side of the end of the frame. The second pushing cylinder extends out and pushes the bearing that falls into the material guide seat into the material receiving track. Through the above improvements, the first pushing cylinder pushes the bearing into the material guide seat, the material guide seat connects to the material receiving track and arranges the bearings, and the second pushing cylinder pushes the arranged bearings in turn, thereby completing the collection of defective bearings.

[0016] Preferably, a cavity is provided in the material guide seat for the bearing to fall into, and a guide block connected to the end of the frame is provided in the cavity. The output end of the second pushing cylinder extends into the cavity and extends and is retracted under the lower guide block. An arc-shaped guide surface is provided on the guide block so that the bearing falling into the cavity of the material guide seat is in a vertical state. The material collecting track includes two material guide rods, and the lower end of the bearing is tangent to the material guide rods.

[0017] Furthermore, the assembly device also includes a mold base fixed on the lifting platform, the driving assembly includes a plurality of micro cylinders fixed on the mold base, the plurality of micro cylinders are all arranged toward the center of the mold base, the ejector pin is arranged on the output end of the micro cylinder, and the outer wall of at least one moving needle is provided with a groove for partially inserting the O-ring. Through the above improvements, the setting of the groove makes the position of the O-ring on the moving needle more stable.

[0018] Furthermore, a lifting cavity is provided between the placement block and the movable platform, and a top plate driven by a lifting assembly is provided in the lifting cavity. A plurality of ejectors penetrating the placement block and connected to the ring groove are provided on the top plate. The ejectors move under the assembly station and eject the O-ring out of the ring groove.

[0019] Furthermore, the placement block is also provided with a plurality of slide grooves which are radially arranged and connected to the annular groove. The plurality of slide grooves are circumferentially spaced and correspond to the moving needle. Through the above improvements, the position of the slide groove corresponds to the moving needle. After the moving needle extends into the slide groove, the lifting assembly drives the O-ring to lift, and at the same time, the driving assembly drives the moving needle to open, thereby ensuring that the O-ring is stably inserted into the moving needle and reducing the deviation of the vertical position of the O-ring on the moving needle.

[0020] Furthermore, the lifting assembly includes a short shaft arranged laterally on the outside of the top plate, a longitudinal moving cylinder arranged on the outside of the mobile platform and a top shaft arranged on the output end of the longitudinal moving cylinder, the top shaft includes a first shaft tangent to the bottom end of the short shaft, a second shaft with a diameter larger than the first shaft and a transition shaft arranged between the first shaft and the second shaft, the transition shaft and the second shaft extend out with the longitudinal moving cylinder and contact with the short shaft, so that the short shaft drives the top plate to lift. Through the above improvements, the top shaft extends out to lift the short shaft, and the transition shaft guides and buffers the entire lifting action, so that the top plate is stably lifted and the vibration of the O-ring in the ring groove is reduced.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] 1. When unloading, in the initial state of the mobile platform, the placement table on the mobile platform is flush with the lower opening of the barrel, and the O-ring on the barrel falls into the ring groove of the placement table under the action of gravity. The mobile platform extends to transport the O-ring to the assembly station. Before the O-ring is assembled, the O-ring is always placed in the ring groove of the placement table to ensure the stability of the O-ring feeding process. By adjusting the distance from the mobile platform to the barrel and the depth of the ring groove, the O-rings are fed one by one to avoid feeding multiple O-rings at the same time, which affects the normal assembly of the bearing and the O-ring. In addition, through the feeding device and the first conveying component, the synchronous unloading of the O-ring and the bearing is realized, and the unloading action process is coherent to ensure work efficiency.

[0023] 2. During assembly, after the mobile platform is in place, the O-ring in the ring groove is lifted by the lifting assembly, which is arranged on the outside of the mobile platform. Thus, in a small space, the longitudinal displacement on the horizontal plane is converted into a vertical displacement that drives the ejector pin to lift, thereby facilitating the lifting and lowering of the O-ring. The structure is simple and easy to assemble.

[0024] The lifting platform drives the separation plate and the driving assembly to descend. When the lower end of the moving needle extends into the O-ring, the driving assembly moves and drives the moving needle to open radially, thereby opening and fixing the O-ring to facilitate the insertion of the bearing.

[0025] After the lifting platform rises a certain distance, the bearing lifting device is activated to lift the bearing on the assembly station so that the outer ring groove of the bearing is flush with the lower end surface of the moving needle. The separation plate descends to push the O-ring on the moving needle downward into the outer ring groove of the bearing, completing the assembly of the outer ring groove of the bearing and an O-ring. In addition, after the bearing is lifted at the assembly station, it does not contact the assembly device. The moving needle opens the O-ring from the inside without causing plastic deformation of the O-ring, thereby avoiding hard damage to the bearing and wear of the outer ring of the O-ring, ensuring the tightness of the assembly of the O-ring and the bearing, and the anti-slip effect provided by the O-ring for the bearing.

[0026] The bearing is flipped over at the flipping station and enters the next assembly station. The assembly device at the next assembly station completes the assembly of the other outer ring groove of the bearing and the O-ring. This equipment has a high degree of automation and does not require manual operation. It can complete the assembly of two O-rings on the same bearing in a smaller area, greatly reducing labor costs and improving the pass rate.

[0027] 3. Set the first detection component at the initial end of the frame to detect the two outer ring grooves of the bearing, and set the second detection component at the end of the frame to detect whether the O-ring is installed in the outer ring groove of the bearing, so as to improve the qualified rate of the bearing and ensure the stable progress of the bearing assembly process.

[0028] 4. The first conveying assembly is vertically connected to the frame, and the second conveying assembly is arranged on one side of the frame along the length direction of the frame to reduce the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of an assembly station of the present invention;

[0031] Figure 3 It is a cross-sectional schematic diagram of an assembly station of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the feeding device of the present invention;

[0033] Figure 5 It is a cross-sectional schematic diagram of the feeding device of the present invention;

[0034] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0035] Figure 7 It is a structural schematic diagram of the mobile platform and the placement table of the present invention;

[0036] Figure 8 It is a structural schematic diagram of the assembly device of the present invention;

[0037] Fig. 9 Another schematic diagram of the structure of the assembly device of the present invention;

[0038] Fig.10 It is a structural schematic diagram of the bearing lifting device of the present invention;

[0039] Fig.11 It is a structural schematic diagram of the flipping station of the present invention;

[0040] Fig.12 It is a structural schematic diagram of the rejection component of the present invention;

[0041] Fig.13 It is a structural schematic diagram of the first conveying assembly of the present invention;

[0042] Fig.14 is a schematic structural diagram of a second conveying assembly of the present invention;

[0043] Fig.15 It is a structural schematic diagram of the second conveying assembly and the frame of the present invention;

[0044] Fig.16 It is a partial structural schematic diagram of the first detection component of the present invention;

[0045] Fig.17 is a schematic structural diagram of a second detection component of the present invention;

[0046] In the figure: 1, frame; 11, first sensor; 12, detection claw; 121, detection protrusion; 13, optical fiber sensor; 2, first conveying assembly; 21, conveyor belt; 22, baffle; 3, second conveying assembly; 31, material shifting claw; 32, longitudinal material shifting cylinder; 33, transverse material shifting cylinder; 4, turning station; 41, turning cylinder; 42, bearing seat; 43, frame body; 44, connecting part; 45, arc-shaped part; 5, barrel; 51, guide sleeve; 6, feeding device; 61, moving platform; 62, placing block; 621, ring groove; 622, slideway; 63, lifting assembly; 631, short shaft; 632, longitudinal moving cylinder; 633, top shaft; 634, first shaft; 635, over ferry shaft; 636, second shaft; 64, lifting cavity; 65, ejector plate; 66, ejector pin; 67, O-ring feeding cylinder; 7, assembly device; 71, lifting platform; 72, separation plate; 73, moving needle; 731, embedding groove; 74, driving assembly; 741, micro cylinder; 75, mold base; 76, fixing plate; 77, transmission plate; 78, first lifting cylinder; 79, second lifting cylinder; 8, bearing lifting device; 81, bearing lifting cylinder; 82, centering module; 821, centering part; 822, supporting part; 83, guide rod; 9, rejection assembly; 91, first push cylinder; 92, receiving track; 93, second push cylinder; 94, guide seat; 10, bearing; 111, O-ring; DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0049] like Figure 1-17 As shown, a device for automatically installing an O-ring into an outer ring groove of a bearing comprises a horizontally arranged frame 1, a first conveying assembly 2 arranged longitudinally and connected to the frame 1, and a second conveying assembly 3 arranged side by side with the frame 1 and arranged on one side of the frame 1, two assembly stations are arranged in sequence above the second conveying assembly 3, and a turning station 4 is arranged on the frame 1 between the two assembly stations. The first conveying assembly 2 is used to transport the bearing 10 to the initial end of the frame 1, and the second conveying assembly 3 is used to transport the bearing 10 on the initial end of the frame 1 to move one by one on the frame 1. The assembly stations include:

[0050] like Figures 4 to 7 As shown, the barrel 5 is used to store the O-ring 111. The O-ring 111 is vertically sleeved on the barrel 5. A guide sleeve 51 is sleeved on the end of the barrel 5. The inner wall of the guide sleeve 51 and the outer wall of the barrel 5 form a drop channel for the O-ring 111 to fall.

[0051] The feeding device 6 is used to transport the O-ring 111 to the bottom of the assembly device 7. The feeding device 6 includes a moving platform 61 arranged near the lower part of the barrel 5. A placement block 62 and a lifting assembly 63 are provided at the end of the moving platform 61. The placement block 62 is provided with an annular groove 621 for the O-ring 111 to fall into. The lifting assembly 63 is used to lift the O-ring 111 in the annular groove 621, wherein it is used to drive the moving platform 61 to move longitudinally. A slider is provided at the lower part of the moving platform 61. The slider is slidably connected with a guide rail. An O-ring feeding cylinder 67 is provided at the end of the moving platform 61. The output end of the O-ring feeding cylinder 67 is connected to the moving platform 61, thereby driving the moving platform 61 to move longitudinally. When the O-ring feeding cylinder 67 is retracted, the placement block 62 is located directly below the barrel 5. When the O-ring feeding cylinder 67 is extended, the placement block 62 is located directly below the assembly device 7.

[0052] like Figure 8 and Fig. 9 As shown, the assembly device 7 is used to assemble the O-ring 111 into the bearing 10. The assembly device 7 includes a lifting platform 71, a separation plate 72 that can be lifted and lowered relative to the lifting platform 71, a moving needle 73 vertically extending from the bottom of the separation plate 72, and a driving assembly 74 arranged on the lifting platform 71. The driving assembly 74 is connected to the moving needle 73. When the lifting platform 71 descends, the driving assembly 74 drives the moving needle 73 to open to grab and open the O-ring 111 on the placement block 62. The O-ring 111 is vertically constrained on the moving needle 73.

[0053] The bearing lifting device 8 is arranged at the lower part of the frame 1. The bearing lifting device 8 is used to lift the bearing 10 on the frame 1 to the position of the stretched O-ring 111. The separation plate 72 descends to push the O-ring 111 into the outer ring groove of the bearing 10.

[0054] like Fig.11 As shown, specifically, the flipping station 4 includes a flipping cylinder 41 arranged on one side of the frame 1, a bearing receptacle 42 and a frame sub-body 43 arranged on the output end of the flipping cylinder 41, the frame sub-body 43 has a connecting portion 44 flush with the conveying end surface of the bearing 10 of the frame 1 and an arc portion 45 for the bearing receptacle 42 to flip, the second conveying component 3 transports the bearing 10 to the bearing receptacle 42, and the second conveying component 3 transports the bearing 10 to the next station after the flipping cylinder 41 is actuated, and the frame sub-body 43 connects the two frames 1 under the two assembly stations, reducing the processing difficulty of the arc portion 45 for the flipping of the bearing receptacle 42.

[0055] like Fig.10 As shown, specifically, the bearing lifting device 8 includes a bearing lifting cylinder 81 vertically arranged at the bottom of the frame 1 and a centering module 82 arranged on the output end of the bearing lifting cylinder 81. The centering module 82 includes a centering portion 821 matched with the inner hole of the bearing 10 and a supporting portion 822 for supporting the bearing 10. The centering portion 821 is in a cone shape, and the outer diameter of the top of the centering portion 821 is smaller than the inner diameter of the bearing 10, so that when the center of the bearing 10 deviates from the center of the assembly device 7 or the center of the centering portion 821, the top of the centering portion 821 can at least partially extend into the inner ring of the bearing 10, and the outer wall of the centering portion 821 constitutes a guiding surface, thereby guiding the bearing 10 to be inserted into the centering portion 821 and located on the supporting portion 822, to ensure that the bearing 10 and the O-ring 111 are accurately assembled.

[0056] Specifically, two guide rods 83 are provided on the centering module 82, and the two guide rods 83 are respectively arranged at two ends away from each other of the centering module 82, and the lower part of the guide rod 83 is passed through the bearing lifting cylinder 81, and the upper part of the guide rod 83 is fixed to the bottom of the centering module 82, so as to reduce the movement of the centering module 82 when the bearing lifting cylinder 81 is actuated.

[0057] like Fig.15 and Fig.16As shown, specifically, a first detection component is provided at the initial end of the frame 1, the first detection component is electrically connected to the control system, and the first detection component is used to detect the defective bearing 10 before assembly. The first detection component includes a first detection mounting block arranged at one side of the frame 1, a first sensor 11, and a detection claw 12 inserted in the first detection mounting block, and the detection claw 12 is elastically contacted with the first sensor 11 through a spring, and the detection claw 12 includes two detection protrusions 121 partially extending in the frame 1, and the two detection protrusions 121 are respectively arranged corresponding to the two outer grooves of the bearing 10. If there is no outer ring groove on the bearing 10, or there is only one outer ring groove, the detection protrusion 121 cannot enter the outer ring groove, and is squeezed out of the bearing 10 for a distance, and then contacts and senses with the first sensor 11, and detects the defective bearing 10;

[0058] like Fig.15 and Fig.17 As shown, a second detection component is provided at the end of the frame 1, and the second detection component is electrically connected to the control system. The second detection component is used to detect defective bearings 10 after assembly. The second detection component includes two optical fiber sensors 13 arranged on one side of the frame 1, and the two optical fiber sensors 13 are respectively arranged corresponding to the two outer grooves of the bearing 10. If the O-ring 111 is not assembled on the outer ring groove of the bearing 10, the infrared light emitted by the optical fiber sensor 13 is reflected by the metal in the outer ring groove of the bearing 10 and received by the optical fiber sensor 13, so that the control system is informed that there are defective products there.

[0059] like Fig.12 As shown, specifically, it also includes a rejection component 9 electrically connected to the first detection component, the second detection component and the control system. The rejection component 9 includes a first pushing cylinder 91 and a material receiving track 92 which are relatively arranged on both sides of the frame 1. The material receiving track 92 is arranged at the lower part of the frame 1, and a second pushing cylinder 93 is also provided at the lower end of the frame 1. A material guide seat 94 is provided on one side of the end of the frame 1. The second pushing cylinder 93 extends out and pushes the bearing 10 that falls into the material guide seat 94 into the material receiving track 92. The first pushing cylinder 91 pushes the bearing 10 into the material guide seat 94. The material guide seat 94 connects to the material receiving track 92 and arranges the bearings 10. The second pushing cylinder 93 pushes the arranged bearings 10 in turn, thereby completing the collection of defective bearings 10.

[0060] In this embodiment, a cavity is provided in the material guide seat 94 for the bearing 10 to fall into, and a guide block connected to the end of the frame 1 is provided in the cavity. The output end of the second push cylinder 93 extends into the cavity and extends and retracts under the lower guide block. An arc-shaped guide surface is provided on the guide block so that the bearing 10 falling into the cavity of the material guide seat 94 is in a vertical state. The material receiving track 92 includes two material guide rods, and the lower end of the bearing 10 is tangent to the material guide rods.

[0061] like Figures 8 to 9 and Figure 3As shown, specifically, a fixing plate 76 is provided above the lifting platform 71, and a first lifting cylinder 78 is provided on the fixing plate 76 to drive the lifting platform 71 to move up and down a certain distance;

[0062] A second lifting cylinder 79 is provided between the lifting platform 71 and the fixed plate 76. The second lifting cylinder 79 is fixed on the lifting platform 71 so as to be synchronously lowered with the lifting platform 71. A transmission plate 77 is provided on the output end of the second lifting cylinder 79. The transmission plate 77 is fixedly connected to the separation plate 72 via a connecting shaft. The assembly device 7 also includes a die base 75 fixed to the lower part of the lifting platform 71. A space is provided between the lifting platform 71 and the die base 75 for the transmission plate 77 to be lifted up and down by a certain distance. When the second lifting cylinder 79 is actuated, the separation plate 72 is extended relative to the lifting platform 71.

[0063] The driving assembly 74 includes six micro cylinders 741 fixed on the mold base 75. The six micro cylinders 741 are arranged in six equal parts along the circumferential direction toward the center of the mold base 75. The moving needle 73 is arranged on the output end of the micro cylinder 741, and the outer wall of the moving needle 73 at two relative positions is provided with a groove 731 for partially inserting the O-ring 111, so that the position of the O-ring 111 on the moving needle 73 is more stable.

[0064] Specifically, a lifting cavity 64 is provided between the placement block 62 and the movable platform 61, and a top plate 65 driven by a lifting assembly 63 is provided in the lifting cavity 64. Six ejector pins 66 are provided on the top plate 65 and pass through the placement block 62 and communicate with the annular groove 621. The ejector pins 66 move under the assembly station and eject the O-ring 111 out of the annular groove 621.

[0065] like Figure 7 As shown, specifically, the placement block 62 is also provided with six slide grooves 622 which are radially arranged and connected to the annular groove 621. The six slide grooves 622 are circumferentially spaced and correspond to the position of the moving needle 73. After the first lifting cylinder 78 drives the lifting platform 71 to descend and the moving needle 73 extends into the slide groove 622, the lifting assembly 63 drives the O-ring 111 to lift, and at the same time, the driving assembly 74 drives the moving needle 73 to open, ensuring that the O-ring 111 is stably inserted into the moving needle 73 and reducing the deviation of the vertical position of the O-ring 111 on the moving needle 73.

[0066] Specifically, the lifting assembly 63 includes a short shaft 631 laterally arranged on the outside of the top plate 65, a longitudinal moving cylinder 632 arranged on the outside of the movable platform 61, and a top shaft 633 arranged on the output end of the longitudinal moving cylinder 632. The top shaft 633 includes a first shaft 634 tangent to the bottom end of the short shaft 631, a second shaft 636 with a diameter larger than the first shaft 634, and a transition shaft 635 arranged between the first shaft 634 and the second shaft 636. The transition shaft 635 and the second shaft 636 extend out with the longitudinal moving cylinder 632 and contact with the short shaft 631, so that the short shaft 631 drives the top plate 65 to lift, the top shaft 633 extends to lift the short shaft 631, and the transition shaft 635 guides and buffers the entire lifting action, so that the top plate 65 is stably lifted and the vibration of the O-ring 111 in the annular groove 621 is reduced.

[0067] The diameter of the O-ring 111 in this embodiment is 1 mm;

[0068] The first conveying assembly 2 includes a conveyor belt 21 driven by a motor, a bearing 10 alignment plate is provided on the conveyor belt 21, and a baffle 22 is provided at the end of the conveyor belt 21 to block the bearing 10;

[0069] The second conveying assembly 3 includes a material moving claw 31, a longitudinal material moving cylinder 32 for driving the material moving claw 31 to extend longitudinally to the frame 1, and a transverse material moving cylinder 33 for driving the material moving claw 31 to move transversely on the frame 1. The material moving claw 31 extends into the conveyor belt 21 and holds the bearing 10 blocked by the baffle 22.

[0070] The first conveying assembly 2 is actuated to convey the bearing 10 to the initial end of the second conveying assembly 3, and the second conveying assembly 3 transports the bearing 10 to the initial end of the frame 1. The first detection assembly detects the outer ring groove of the bearing 10. If the outer ring groove of the bearing 10 is missing, a defective signal is sent to the rejection device through the control system;

[0071] The O-ring 111 is unloaded, and the mobile platform 61 is close to the unloading channel. The gap between the unloading channel and the mobile platform 61 is 0.3 mm. The O-ring 111 falls into the annular groove 621 of the placement table under the action of gravity. The O-ring feeding cylinder 67 extends to move the O-ring 111 in the annular groove 621 to the bottom of the assembly station.

[0072] The O-ring 111 is taken out, the first lifting cylinder 78 extends, drives the lifting platform 71 to drive the separation plate 72 to descend as a whole, until the separation plate 72 is 1.5 mm away from the placement block 62, at which time the driving assembly 74 is in an extended state, and the moving needle 73 thereon extends into the slide groove 622; the longitudinal moving cylinder 632 is actuated to lift the top plate 65, at which time the ejector pin 66 drives the O-ring 111 to lift out of the end face of the placement block 62, at which time the driving assembly 74 is retracted, and the moving needle 73 radially spreads the O-ring 111 in the slide groove 622, at which time the O-ring 111 is close to the end face of the separation plate 72, the first lifting cylinder 78 is retracted, the O-ring feeding cylinder 67 is retracted, and the O-ring 111 is taken out;

[0073] The bearing 10 is in the upper position, and the second conveying assembly 3 transports the bearing 10 to the position directly below the assembly station. The bearing lifting cylinder 81 is actuated, and the bearing 10 is inserted into the centering module 82, so that the outer ring groove of the bearing 10 is aligned with the lower end of the moving needle 73;

[0074] The O-ring 111 is assembled, and the second lifting cylinder 79 drives the separation plate 72 to move downward relative to the lifting platform 71, and the separation plate 72 pushes the O-ring 111 on the moving needle 73 into the outer ring groove of the bearing 10;

[0075] The second conveying assembly 3 is actuated and continues to transport the bearing 10 to the flipping station 4. After the bearing 10 enters the bearing seat 42, the flipping cylinder 41 is actuated, and the second conveying assembly 3 is actuated and continues to transport the bearing 10 to the next assembly station, repeating the actions of unloading the O-ring 111, taking the O-ring 111, placing the bearing 10, and assembling the O-ring 111.

[0076] The second conveying assembly 3 operates and continues to transport the bearing 10 to the end of the frame 1. The second detection assembly detects the outer ring groove of the bearing 10. If the O-ring 111 is missing in the outer ring groove of the bearing 10, a defective signal is sent to the rejection device through the control system.

[0077] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A device for automatically installing an O-ring into an outer ring groove of a bearing, comprising a frame (1), a first conveying assembly (2) connected to the frame (1), and a second conveying assembly (3) arranged on one side of the frame (1), two assembly stations are arranged in sequence above the second conveying assembly (3), a turning station (4) is arranged on the frame (1) between the two assembly stations, and the second conveying assembly (3) is used to transport bearings (10) in sequence, characterized in that: The assembly station comprises: A barrel (5) for storing the O-ring (111), wherein the lower portion of the barrel (5) is open for the O-ring (111) to fall into; A feeding device (6) is used to transport the O-ring (111) to the bottom of the assembly device (7), the feeding device (6) comprising a moving platform (61) arranged near the lower part of the barrel (5), a placement block (62) and a lifting assembly (63) being provided at the end of the moving platform (61), the placement block (62) being provided with an annular groove (621) for the O-ring (111) to fall into, and the lifting assembly (63) being used to lift the O-ring (111) in the annular groove (621); An assembly device (7) is used for assembling an O-ring (111) into a bearing (10), the assembly device (7) comprising a lifting platform (71), a separation plate (72) that can be lifted and lowered relative to the lifting platform (71), a moving needle (73) vertically extending from the bottom of the separation plate (72), and a driving component (74) arranged on the lifting platform (71), the driving component (74) being connected to the moving needle (73), the lifting platform (71) descends and the driving component (74) drives the moving needle (73) to open so as to grab and open the O-ring (111) on the placement plate, and the O-ring (111) is vertically constrained on the moving needle (73); A bearing lifting device (8) is provided at the lower part of the frame (1), and is used to lift the bearing (10) on the frame (1) to the position of the stretched O-ring (111), and the separation plate (72) is lowered to push the O-ring (111) into the outer ring groove of the bearing (10).

2. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 1, characterized in that: The turning station (4) comprises a turning cylinder (41) arranged on one side of the frame (1), a bearing seat (42) arranged on the output end of the turning cylinder (41), and a frame sub-body (43); the frame sub-body (43) has a connecting portion (44) flush with the conveying end surface of the bearing (10) of the frame (1) and an arc-shaped portion (45) for the bearing seat (42) to turn over; the second conveying component (3) conveys the bearing (10) into the bearing seat (42); and the second conveying component (3) conveys the bearing (10) to the next station after the turning cylinder (41) is actuated.

3. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 1, characterized in that: The bearing lifting device (8) comprises a bearing lifting cylinder (81) vertically arranged at the bottom of the frame (1) and a centering module (82) arranged on the output end of the bearing lifting cylinder (81); the centering module (82) comprises a centering portion (821) matched with the inner hole of the bearing (10) and a supporting portion (822) for supporting the bearing (10); the centering portion (821) is in the shape of a cone that partially extends into the bearing (10).

4. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 3, characterized in that: The centering module (82) is also provided with two guide rods (83), which are respectively arranged at two ends of the centering module (82) that are far away from each other, and the lower part of the guide rod (83) is inserted into the bearing lifting cylinder (81).

5. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 1, characterized in that: A first detection assembly is provided at the initial end of the frame (1), the first detection assembly comprising a first sensor (11) arranged at one side of the frame (1) and a detection claw (12) elastically contacting the first sensor (11), the detection claw (12) comprising two detection protrusions (121) partially extending inside the frame (1), the two detection protrusions (121) being arranged corresponding to the two outer grooves of the bearing (10) respectively; A second detection component is provided at the end of the frame (1), and the second detection component comprises two optical fiber sensors (13) arranged on one side of the frame (1), and the two optical fiber sensors (13) are arranged corresponding to the two outer grooves of the bearing (10) respectively.

6. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 5, characterized in that: The machine also comprises a rejection assembly (9) electrically connected to the first detection assembly and the second detection assembly, the rejection assembly (9) comprising a first pushing cylinder (91) and a material receiving track (92) arranged on both sides of the frame (1) opposite to each other, the material receiving track (92) being arranged at the lower part of the frame (1), a second pushing cylinder (93) being arranged at the lower part of the end of the frame (1), a material guide seat (94) being arranged at one side of the end of the frame (1), the second pushing cylinder (93) extending out and pushing the bearing (10) falling into the material guide seat (94) into the material receiving track (92).

7. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 1, characterized in that: The assembly device (7) further comprises a mold base (75) fixed on the lifting platform (71); the driving assembly (74) comprises a plurality of micro cylinders (741) fixed on the mold base (75); the plurality of micro cylinders (741) are all arranged toward the center of the mold base (75); the moving needle (73) is arranged on the output end of the micro cylinder (741); and an outer wall of at least one of the moving needles (73) is provided with an embedding groove (731) for partially inserting an O-ring (111).

8. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 1, characterized in that: A lifting cavity (64) is provided between the placement block (62) and the movable platform (61), and a top plate (65) driven by a lifting assembly (63) is provided in the lifting cavity (64). A plurality of ejector pins (66) are provided on the top plate (65) and are penetrated through the placement block (62) and connected to the annular groove (621). The ejector pins (66) move below the assembly station and eject the O-ring (111) out of the annular groove (621).

9. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 1, characterized in that: The placement block (62) is also provided with a plurality of slide grooves (622) arranged in the radial direction and connected to the annular groove (621); the plurality of slide grooves (622) are arranged at intervals in the circumferential direction and correspond to the moving needle (73).

10. The device for automatically installing an O-ring into a bearing outer ring groove according to claim 1, characterized in that: The lifting assembly (63) includes a short shaft (631) arranged transversely on the outside of the top plate (65), a longitudinal moving cylinder (632) arranged on the outside of the moving platform (61), and a top shaft (633) arranged on the output end of the longitudinal moving cylinder (632). The top shaft (633) includes a first shaft (634) tangent to the bottom end of the short shaft (631), a second shaft (636) having a diameter greater than the first shaft (634), and a transition shaft (635) arranged between the first shaft (634) and the second shaft (636). The transition shaft (635) and the second shaft (636) extend out with the longitudinal moving cylinder (632) and contact with the short shaft (631), so that the short shaft (631) drives the top plate (65) to lift.

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