CN119282669A

CN119282669A - Assembly device and assembly method of bearing and retaining ring

Info

Publication number: CN119282669A
Application number: CN202411683693.9A
Authority: CN
Inventors: 邓权; 陈凤威; 钟伟; 张勇
Original assignee: Hunan Xingchuang Intelligent Equipment Co ltd
Current assignee: Hunan Xingchuang Intelligent Equipment Co ltd
Priority date: 2024-11-22
Filing date: 2024-11-22
Publication date: 2025-01-10
Anticipated expiration: 2044-11-22
Also published as: CN119282669B

Abstract

The present application discloses an assembly device and an assembly method for a bearing and a retaining ring, which relates to the field of manufacturing. The assembly device includes a pre-tightening assembly, and the retaining ring to be assembled is pre-tightened by the pre-tightening mechanism of the pre-tightening assembly to avoid problems such as screw thread damage caused by direct tightening with high torque. At the same time, the pre-tightening mechanism of the present application is designed with a motion control component to avoid excessive downward movement of the retaining ring to damage the product and thread damage during the retaining ring recognition process, and the overall structure is more flexible. The assembly method of the present application has high working efficiency and good overall coordination.

Description

Assembling equipment and assembling method for bearing and retainer ring

Technical Field

The application relates to the field of production and manufacturing, in particular to an assembly device and an assembly method of a bearing and a retainer ring.

Background

In the existing assembly production of gear set bearing retainers, the bearings and retainers need to be screwed together to be assembled together. The problems in the prior art are that (1) a plurality of devices are needed to be respectively carried out, including a gluing device, a screwing device, a detection device and the like, all the devices are mutually independent and lack of cooperation, so that the production efficiency is low and the cost is high, (2) when the retainer ring is assembled with the bearing threads, large torque is adopted to directly screw the retainer ring, so that the threads are possibly damaged, and the product is damaged, (3) when the retainer ring and the bearing are assembled in the existing device, the retainer ring lacks activity allowance, so that the product is damaged in the process of tooth recognition of the retainer ring, and (4) feedback of the screwing position of the retainer ring into the bearing is lacked, the downward movement amount of the retainer ring (namely the downward rotation displacement amount of the retainer ring threads) cannot be accurately controlled, and the excessive screwing is caused.

Disclosure of Invention

The embodiment of the application provides an assembly device and an assembly method for a bearing and a retainer ring, which can prevent thread damage from occurring in the tooth recognition process of the retainer ring and control the downward movement amount of the retainer ring.

The application provides equipment for assembling a bearing and a check ring, which is characterized by comprising a rotary table rotatably arranged at a preset position, wherein the rotary table is used for circulating the bearing and the check ring to be assembled, a pre-tightening assembly comprises a pre-tightening mechanism, the pre-tightening mechanism comprises a first Z-axis moving assembly, a first mounting plate, a rotary driving assembly, a first clamping jaw and a movement control assembly, the first Z-axis moving assembly is arranged on one side of the rotary table, the first mounting plate is arranged on the first Z-axis moving assembly, the first Z-axis moving assembly can drive the first mounting plate to move in the height direction, the rotary driving assembly is in sliding connection with the first mounting plate in the height direction, the first clamping jaw is arranged at the output end of the rotary driving assembly, the first clamping jaw is used for clamping the check ring to be assembled, the first clamping jaw is driven to rotate with the check ring to be assembled through the rotary driving assembly, the check block is arranged on the first mounting plate, two stop faces used for limiting the moving plate are arranged at intervals in the height direction, one end of the moving plate is arranged on the rotary driving assembly, the moving plate is arranged between the moving plate and the first stop faces and the first optical sensing assembly, the two stop faces are arranged on the first optical sensing assembly and are in a position corresponding to the first optical sensing assembly or a position, and are arranged below the first optical sensing assembly.

In a second aspect, the present application provides a method of assembling a bearing and a retainer ring, using an assembling apparatus of the bearing and the retainer ring, the assembling method comprising pre-tightening the retainer ring to be assembled on the bearing:

The first clamping jaw clamps a retaining ring to be assembled and moves to the upper part of the bearing, the first Z-axis movement assembly drives the first clamping jaw and the retaining ring to move downwards, after the retaining ring touches the bearing, the first Z-axis movement assembly continuously drives the first mounting plate to move downwards at a uniform speed, the moving plate moves upwards in a staggered manner relative to the first mounting plate, when a first baffle on the moving plate is separated from the matching with the first photoelectric sensing piece, the first photoelectric sensing piece generates a first feedback signal and transmits the first feedback signal to the first Z-axis movement assembly and the first servo motor, and the first Z-axis movement assembly continuously drives the first mounting plate to move downwards for t seconds after reaching the first feedback signal and then stops;

The first servo motor starts to drive the first clamping jaw and the check ring to rotate after receiving the first feedback signal t seconds, the check ring is screwed in on the bearing through threads, meanwhile, the movable plate and the first clamping jaw also move downwards along with the check ring, when the first baffle is matched with the first photoelectric sensing piece again, the first photoelectric sensing piece generates the second feedback signal and transmits the second feedback signal to the first Z-axis movement assembly and the first servo motor, the first servo motor stops rotating, meanwhile, the first clamping jaw loosens the check ring, and the first Z-axis movement assembly drives the first mounting plate, the movable plate and the first clamping jaw to reset upwards.

The assembly equipment and the assembly method of the bearing and the retainer ring have at least the following beneficial effects:

The assembly equipment comprises a pre-tightening assembly, a pre-tightening mechanism of the pre-tightening assembly is used for pre-tightening a retainer ring to be assembled, so that the problems of screw tooth damage and the like caused by directly adopting high torque tightening are avoided, meanwhile, the pre-tightening mechanism is provided with a motion control assembly, the motion control assembly comprises a moving plate, a stop block and a first photoelectric sensing piece, the moving plate is abutted against a stop surface below the stop block under the action of gravity in an initial state, when the first Z-axis motion assembly drives the first clamping jaw and the retainer ring to move downwards to touch a bearing, the bearing continuously drives the first mounting plate to move downwards along with the first Z-axis motion assembly, so that the first clamping jaw and the moving plate are jacked upwards by the bearing, the first baffle piece on the movable plate is separated from the first photoelectric sensing piece to generate a feedback signal, the feedback signal is transmitted to the first Z-axis movement assembly to stop moving downwards, the phenomenon that the retainer ring excessively moves downwards to hurt products is avoided, the retainer ring is matched with the first photoelectric sensing piece again in the downward thread assembly process, the continuous screwing is stopped at the moment, the displacement of the pre-screwing can be controlled, and on the other hand, the rotary driving assembly and the first mounting plate are in up-down sliding connection, so that the first clamping jaw and the retainer ring have a certain up-down floating allowance, the thread damage of the retainer ring in the thread recognition process can be avoided, and the flexibility of the whole structure is better.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic view of the construction of the assembly apparatus of the present application;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of a part of the structure of the mounting mechanism, the jacking and rotating mechanism and the turntable in the application;

FIG. 4 is a cross-sectional view of the mounting mechanism of FIG. 3 (illustrating the assembled retainer ring and bearing);

FIG. 5 is a vertical cross-section of the mounting mechanism, jacking and rotating mechanism and turntable of the present application;

FIG. 6 is a block diagram of the jack-up rotation mechanism of FIG. 3;

FIG. 7 is a schematic diagram of the configuration of the turntable, visual inspection assembly and bearing glue assembly;

Fig. 8 is an enlarged view at a in fig. 7;

FIG. 9 is a schematic view of the pretensioning assembly of the present application;

FIG. 10 is a schematic view of a portion of the pretension assembly of FIG. 9;

Fig. 11 is an enlarged view at B in fig. 10;

FIG. 12 is a schematic view of another angle of FIG. 10;

Fig. 13 is an enlarged view at C in fig. 12;

FIG. 14 is a schematic view of a retainer ring gumming mechanism in accordance with the present application;

FIG. 15 is a schematic view of the tightening assembly of the present application;

FIG. 16 is a schematic view of the structure of the assembly detection assembly of the present application;

FIG. 17 is a schematic front view of a mounting and inspection assembly of the present application;

The description of the reference numerals is as follows:

10. a work table;

20. The device comprises a turntable, a loading and unloading station, a visual detection station, a gluing station, a pre-tightening station, a assembling detection station and a positioning detection station, wherein the turntable, the loading and unloading station, the visual detection station, the gluing station, the pre-tightening station, the tightening station and the assembling detection station are respectively arranged in sequence;

21. Mounting mechanism, 211, first bottom plate, 211a, positioning groove, 212, second bottom plate, 213, central mounting plate, 2131, first positioning pin, 2132, second positioning pin, 214, first guide post;

22. lifting rotating mechanism 221, lifting platform 222, rotating platform 222a, positioning hole 223, lifting telescopic piece 224, rotating driving piece 225, mounting platform 226, follow-up platform 227, guide rod 228, and transmission rod;

30. A visual detection assembly;

40. bearing gluing assembly, 41, fourth traversing mechanism, 42, first vertical frame, 43, fourth Z-axis movement assembly, 44, first rubber head supporting plate, 45, first rubber nozzle;

50. pre-tightening the assembly;

51. The device comprises a pre-tightening mechanism, a first Z-axis movement assembly, a first mounting plate, a rotation driving assembly, a connection plate, a 5131, a 5132, a first servo motor, a 5133, a speed reducer, a 5134, a torque sensor, a 5135, a pneumatic slip ring, a 5136, a vertical sliding rail mechanism, a 514, a first clamping jaw, a 515, a movement control assembly, a 5151, a stop block, a 51511, a stop surface, a 5152, a moving plate, a 51521, a first stop piece, a 51522, a second stop piece, a 5153, a first photoelectric sensor, a 5154 and a second photoelectric sensor, wherein the pre-tightening mechanism is arranged on the first Z-axis movement assembly;

52. A first traversing mechanism;

53. The device comprises a retainer ring gluing mechanism, 531, a fifth traversing mechanism, 532, a second vertical frame, 533, a sixth Z-axis moving assembly, 534, a second glue head supporting plate, 535, a second glue spraying nozzle, 536, a gluing positioning disc and 537, and a gluing motor;

54. The device comprises a grabbing mechanism, a 541, a fifth Z-axis motion assembly, 542 and a second clamping jaw;

55. a temporary storage station for the retainer ring;

60. the device comprises a screwing assembly, a second traversing mechanism, a second mounting plate, a second Z-axis motion assembly, a third mounting plate, a screwing gun, a screwing sleeve and a screwing sleeve, wherein the screwing assembly comprises a screwing assembly, a second traversing mechanism, a second mounting plate, a second Z-axis motion assembly, a third mounting plate, a screwing gun and a screwing sleeve;

70. The device comprises an assembly detection assembly, a third traversing mechanism, a 72, a fourth mounting plate, a 73, a horizontal sliding rail mechanism, a 74, a fifth mounting plate, a 75, a third Z-axis movement assembly, a 76, a test bench, a 77, a pneumatic finger, a 78, a reference block, a 79, a telescopic displacement detection piece, a 710, a floating mechanism, a 7101, a second guide post, a 7102, a transition block, a 7103 and an elastic piece;

80. A bearing;

90. and (5) a retainer ring.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the application only and not limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

The embodiment discloses an assembling apparatus and an assembling method of a bearing and a retainer ring, and first an assembling apparatus of the embodiment will be described.

As shown in fig. 1 and 2, the assembly apparatus of the present embodiment includes a table 10, a turntable 20, a visual inspection assembly 30, a bearing paste assembly 40, a pre-tightening assembly 50, a tightening assembly 60, and an assembly inspection assembly 70.

As shown in fig. 2, the turntable 20 is horizontally rotatably disposed on the table 10, and the turntable 20 may be driven to rotate by conventional equipment, specifically, the turntable 20 may rotate around its axis.

As shown in fig. 2, the turntable 20 is sequentially provided with a loading and unloading station 20a, a visual detection station 20b, a gluing station 20c, a pre-tightening station 20d, a tightening station 20e, an assembly detection station 20f and a loading and unloading station 20a along the circumferential direction, the bearing 80 to be assembled is loaded from the loading and unloading station 20a, and the bearing 80 is sequentially circulated and processed in each station by rotating the turntable 20 until the unloading is completed from the loading and unloading station 20 a. In this embodiment, corresponding functional devices are disposed on one side of each station, and in this embodiment, various functional devices are integrated around the turntable 20, so that the problem of low efficiency caused by independent operation of each device can be solved, occupation of a site can be reduced, the intelligent level is improved, and the production rhythm on site can be controlled conveniently.

As shown in fig. 3 and 4, each station is provided with a mounting mechanism 21 at a corresponding position on the turntable 20, and the mounting mechanism 21 is used for mounting the bearing 80 to be assembled, so that stable circulation of the bearing 80 is facilitated. The mounting mechanism 21 comprises a first bottom plate 211, a second bottom plate 212 and a central mounting plate 213, wherein the first bottom plate 211 is fixedly arranged on the upper surface of the turntable 20, the second bottom plate 212 is arranged above the first bottom plate 211 in a lamination way, the central mounting plate 213 and the second bottom plate 212 are coaxially sleeved, the central mounting plate 213 and the second bottom plate 212 are in rotary connection through the existing structures such as ball bearings and the like, the central mounting plate 213 can rotate relative to the second bottom plate 212 in the horizontal circumferential direction, a mounting hole is formed in the middle position of the central mounting plate 213, and the bearing 80 to be assembled is placed in the mounting hole;

the first bottom plate 211 and the second bottom plate 212 are slidably connected through a first guide post 214 (as shown in fig. 5), the upper end of the first guide post 214 is fixedly connected with the second bottom plate 212, and the first guide post 214 slides downwards to penetrate through the first bottom plate 211, so that the second bottom plate 212 can only slide up and down relative to the first bottom plate 211;

As shown in fig. 5 and 6, a lifting and rotating mechanism 22 is disposed below the turntable 20, and the lifting and rotating mechanism 22 is used to lift the second bottom plate 212 upwards and drive the central mounting plate 213 and the bearing 80 to rotate, in this embodiment, a jacking and rotating mechanism 22 is disposed under the mounting mechanisms 21 of the vision detecting station 20b and the gluing station 20c, and of course, in some special cases, the mounting mechanisms 21 and the jacking and rotating mechanisms 22 may be disposed in one-to-one correspondence.

As shown in fig. 5 and 6, the jacking rotation mechanism 22 includes a jacking table 221, a rotary table 222, a jacking expansion piece 223, a rotation driving piece 224, a mounting table 225, and a follower table 226; the mounting table 225 is fixedly arranged on the upper surface of the workbench 10, a guide rod 227 penetrating through the mounting table 225 in a vertically sliding manner is arranged on the mounting table 225, the upper end of the guide rod 227 is connected with the lower surface of the jacking table 221, and the lower end of the guide rod 227 is connected with the follow-up table 226; the jacking telescopic piece 223 (for example, a telescopic cylinder and the like) is arranged on the mounting table 225, the telescopic end of the jacking telescopic piece 223 is connected with the follow-up table 226, the telescopic direction of the jacking telescopic piece 223 is configured to be the height direction, the follow-up table 226 is driven to move up and down by the jacking telescopic piece 223, and the follow-up table 226 drives the jacking table 221 to move up and down; the jacking table 221 is coaxially arranged with the second bottom plate 212, the jacking table 221 is positioned below the second bottom plate 212, during the jacking process of the jacking table 221, the upper surface of the jacking table 221 can be abutted against the lower surface of the second bottom plate 212 and jack up upwards, the rotating table 222 is coaxially arranged with the jacking table 221, the upper surface of the jacking table 221 is downwards sunken to form a mounting groove, the rotating table 222 can be rotatably arranged in the mounting groove, namely, the rotating table 222 can rotate around the axis, the upper surface of the rotating table 222 is lower than or flush with the upper surface of the jacking table 221, at least two positioning holes 222a are arranged on the rotating table 222, first positioning pins 2131 which extend downwards are arranged on the lower surface of the central mounting plate 213 in a one-to-one correspondence manner, the first positioning pins 2131 and the positioning holes 222a can be inserted together along the height direction, thereby realizing positioning, the rotating driving piece 224 can be a second servo motor and the like, the rotating driving piece 224 is connected to the following table 226, the output end of the rotation driving member 224 is coaxially connected to the rotation table 222 through a transmission rod 228, wherein the transmission rod 228 penetrates through the jacking table 221 and is connected to the rotation table 222.

In this embodiment, as shown in fig. 3, two symmetrical positioning grooves 211a are formed on the first bottom plate 211, and second positioning pins 2132 corresponding to the positioning grooves 211a are formed on the side wall of the center mounting plate 213, wherein the second positioning pins 2132 can be separated from the positioning grooves 211a upwards or placed into the positioning grooves 211a downwards, and when the second positioning pins 2132 are placed into the positioning grooves 211a, the horizontal rotation of the center mounting plate 213 can be limited, so that the rotation positioning of the center mounting plate 213 is realized.

As shown in fig. 5, the turntable 20, the first bottom plate 211, and the second bottom plate 212 are all provided with hollow holes for exposing the center mounting plate 213 from the bottom of the turntable, and at least a portion of the second bottom plate 212 is exposed in the hollow holes of the first bottom plate 211 (so that the jacking table 221 jacks up the same).

The specific working principle is as follows: when the jacking telescopic member 223 is contracted, the jacking platform 221 moves upwards under the drive of the follow-up platform 226, the jacking platform 221 sequentially passes through the hollowed-out hole on the turntable 20 and the hollowed-out hole on the first bottom plate 211, the upper surface of the jacking platform 221 gradually pushes up against the part of the second bottom plate 212 exposed in the hollowed-out hole, and the second bottom plate 212 is jacked up, so that the second bottom plate 212, the central mounting plate 213 and the bearing 80 to be assembled move upwards together, the second positioning pin 2132 on the central mounting plate 213 gradually breaks away from the positioning groove 211a, the degree of freedom of rotation of the central mounting plate 213 is released, meanwhile, in the process of upward movement of the jacking platform 221, the positioning hole 222a on the rotating platform 222 and the first positioning pin 2131 below the central mounting plate 213 are inserted together, positioning can be realized, then the rotating driving member 224 drives the rotating platform 222 to rotate relative to the jacking platform 221, and the rotating platform 213 and the bearing 80 to be assembled together through the first positioning pin 2131 and the positioning hole 222a, so that the rotating platform 222 can drive the central mounting plate 213 and the bearing 80 to rotate together, and the bearing 80 to be assembled to detect the rotation of the bearing 80 uniformly and the visual assembly to detect the rotation of the bearing 40, and the visual assembly can detect the rotation of the bearing 40 uniformly and the visual assembly.

Regarding the cooperation of the installation mechanism 21 and the jacking rotation mechanism 22 in this embodiment, it should be noted that, due to the rotation precision and the machining precision of the turntable 20, accurate positioning cannot be achieved when the turntable 20 rotates, but after the rotation of the installation mechanism 21 reaches the corresponding station, the jacking rotation mechanism 22 jacks up the second bottom plate 212 and the central installation plate 213 of the installation mechanism 21, and simultaneously, the second bottom plate 212 and the central installation plate 213 are temporarily separated from the first bottom plate 211 through the first positioning pin 2131 and the positioning hole 222a, and the positioning reference of each station is on the jack-up of its own station. On the other hand, the lower parts of the vision detection station 20b and the gluing station 20c in the embodiment are respectively provided with a corresponding jacking rotating mechanism 22, when the vision detection is carried out, the bearing 80 can be driven by the jacking rotating mechanism 22 to rotate, whether the bearing 80 to be assembled is abnormal or not can be conveniently observed from various angles, and when the gluing is carried out, the circumferential uniform gluing of the bearing 80 can be realized, and the assembly quality is improved.

As shown in fig. 7 and 8, the visual detection assembly 30 is disposed on a horizontal side of the visual detection station 20b and is located on one side of the turntable 20, and the visual detection assembly 30 can automatically detect whether the incoming material has dirt or other appearance defects, if so, the subsequent station does not process the product, and the product is transferred to the upper blanking station 20a for discharging. The visual inspection assembly 30 of the present embodiment may refer to an existing visual inspection system, and will not be described herein.

As shown in fig. 7 and 8, the bearing gluing assembly 40 is disposed on a horizontal side of the gluing station 20c and on a side of the turntable 20, and the bearing gluing assembly 40 is used for gluing the bearing 80 to be assembled. The bearing gluing assembly 40 comprises a fourth traversing mechanism 41, a first vertical frame 42, a fourth Z-axis moving assembly 43, a first glue head supporting plate 44 and a first glue spraying nozzle 45, wherein the fourth traversing mechanism 41 is horizontally arranged on the workbench 10, the first vertical frame 42 is arranged on the fourth traversing mechanism 41, the fourth traversing mechanism 41 can drive the first vertical frame 42 to move in the horizontal direction, the moving direction of the first vertical frame 42 is configured to horizontally face the gluing station 20c or be away from the gluing station 20c, the fourth Z-axis moving assembly 43 is arranged on the first vertical frame 42, the first glue head supporting plate 44 is arranged on the fourth Z-axis moving assembly 43, the fourth Z-axis moving assembly 43 can drive the first glue head supporting plate 44 to move up and down so as to adjust the height position of the first glue spraying nozzle 45, the first glue spraying nozzle 45 is arranged on the first glue head supporting plate 44, and the first glue spraying nozzle 45 is used for spraying glue liquid to a bearing 80 to be assembled.

As shown in fig. 9, the pre-tightening assembly 50 is disposed at one side of the pre-tightening station 20d and located at one side of the turntable 20, and the pre-tightening assembly 50 is used to pre-tighten the retainer ring 90 to be assembled on the bearing 80. The pre-tightening assembly 50 comprises a pre-tightening mechanism 51, a first traversing mechanism 52, a retainer ring gluing mechanism 53 and a grabbing mechanism 54;

As shown in fig. 9, the first traversing mechanism 52 is disposed on the table 10, the pre-tightening mechanism 51 is disposed on the first traversing mechanism 52, and the pre-tightening mechanism 51 is driven to move in a first predetermined horizontal direction by the first traversing mechanism 52, the first predetermined horizontal direction being configured to be horizontally oriented in the direction of the pre-tightening station 20 d. Along a first predetermined horizontal direction, a temporary retainer ring storage station 55 is arranged on one side, away from the turntable 20, of the pre-tightening mechanism 51, a grabbing mechanism 54 arranged on the pre-tightening mechanism 51 can horizontally move along with the pre-tightening mechanism 51, a retainer ring 90 to be assembled is grabbed onto a retainer ring gluing mechanism 53 to be glued, and the glued retainer ring 90 is clamped to a position right above a bearing 80 of the pre-tightening station 20d through the pre-tightening mechanism 51 and is pre-tightened and assembled.

The pre-tightening mechanism 51 includes a first Z-axis motion assembly 511, a first mounting plate 512, a rotational drive assembly 513, a first clamping jaw 514, and a motion control assembly 515;

As shown in fig. 10 to 13, the first Z-axis moving assembly 511 is disposed on the first traversing mechanism 52, and the first traversing mechanism 52 drives the first Z-axis moving assembly 511 to move in a first predetermined horizontal direction, the first mounting plate 512 is disposed on the first Z-axis moving assembly 511, the first Z-axis moving assembly 511 can drive the first mounting plate 512 to move in a height direction, the rotation driving assembly 513 is disposed on the first mounting plate 512, wherein a vertical sliding rail mechanism 5136 is connected between the rotation driving assembly 513 and the first mounting plate 512, the vertical sliding rail mechanism 5136 can realize the relative sliding of the rotation driving assembly 513 and the first mounting plate 512 in the height direction, the first clamping jaw 514 is disposed on an output end of the rotation driving assembly 513, and the rotation driving assembly 513 drives the first clamping jaw 514 to horizontally rotate, so as to screw the retainer ring 90 to be assembled into the bearing 80;

as shown in FIG. 11, the motion control assembly 515 comprises a stop 5151, a moving plate 5152 and a first photo-sensing element 5153, wherein the stop 5151 is fixedly arranged on the side wall of the first mounting plate 512, an inner groove is formed in the stop 5151, an upper stop surface 51511 and a lower stop surface 51511 (horizontal surfaces) are formed in the inner wall of the inner groove, the two stop surfaces 51511 are separated by a certain distance, one end of the moving plate 5152 is connected with the rotation driving assembly 513 (specifically, the connecting plate 5131 of the rotation driving assembly), the moving plate 5152 is horizontally arranged, the moving plate 5152 penetrates through the inner groove in the horizontal direction, the moving plate 5152 is positioned between the upper stop surface 51511 and the lower stop surface 51511 from the horizontal view, the upper and lower displacement of the moving plate 5152 is limited by the two stop surfaces 51511, so that the upper position and the lower position of the rotation driving assembly 513 are limited, the first photo-sensing element 5153 is arranged on the stop 5151 or the first mounting plate 512, the first photo-sensing element 5153 is positioned on one side of the inner groove facing away from the rotation driving assembly 513, the first stop plate 5152 is horizontally arranged at the end position of the moving plate 5152, and the first stop plate 5152 is horizontally arranged, the first stop plate 521 is capable of being separated from the first photo-sensing element 521, and the first photo-sensing element 521 is separated from the first photo-sensing element 521 when the first signal is sensed by the first stop 521, and the first stop 521 and the first signal is sensed by the first stop plate 521.

The motion control assembly 515 operates according to the principle that when the first traversing mechanism 52 drives the pre-tightening mechanism 51 having clamped the retainer ring 90 to move down to the upper side of the pre-tightening station 20d, in an initial state, the rotation driving assembly 513 and the moving plate 5152 have a sagging tendency due to the gravity, so that the lower surface of the moving plate 5152 in the initial state is attached to a stop surface 51511 located below, at this time, the first baffle 51521 is covered by the first photo sensor 5153, then the first Z-axis motion assembly 511 drives the first mounting plate 512, the rotation driving assembly 513, the first clamping jaw 514 and the retainer ring 90 to move down, after the retainer ring 90 hits the bearing 80, the rotation driving assembly 513 and the moving plate 5152 are propped against each other, the first mounting plate 512 and the rotation driving assembly 513 and the moving plate 5152 move relatively in a height direction, so that the first baffle 51521 is separated from a signal range of the first photo sensor 5153, at this time, the first photo sensor 5153 generates a first feedback signal, and the first feedback signal is directly or indirectly transmitted to the first Z-axis motion assembly 511, and the first Z-axis motion assembly can continue to receive a value of, for example, a value of 0 s, a value of 2s, and so on; on the other hand, the first feedback signal is also directly or indirectly transmitted to the rotary driving assembly 513 (specifically, to the first servo motor 5132 of the rotary driving assembly), the rotary driving assembly 513 starts to drive the first clamping jaw 514 and the retainer ring 90 to rotate after receiving the first feedback signal t seconds, so that the retainer ring 90 is screwed into the bearing 80, and during the screwing process, the moving plate 5152 follows the retainer ring 90 to gradually move downwards, the first blocking plate 51521 again blocks the first photo sensor 5153 and generates the second feedback signal, the second feedback signal is directly or indirectly transmitted to the first Z-axis moving component 511, the rotary driving component 513 and the first clamping jaw 514, the rotary driving component 513 (specifically, the first servo motor 5132) immediately stops working, the first clamping jaw 514 releases the retainer ring 90, and the first Z-axis moving component 511 immediately drives the first clamping jaw 514 to move upwards and reset.

As shown in fig. 11 and 13, in this embodiment, the motion control assembly 515 further includes a second photo sensor 5154, the second photo sensor 5154 and the first photo sensor 5153 are respectively disposed on the upper and lower sides of the stop 5151, one end of the moving plate 5152 is provided with a second blocking piece 51522 matched with the second photo sensor 5154, and when the second blocking piece 51522 blocks the second photo sensor 5154 upward or separates from the second photo sensor 5154 downward, a signal can also be generated, in this embodiment, the purpose of the second photo sensor 5154 is to avoid the first Z-axis motion assembly 511 still moving downward after receiving the first feedback signal t seconds of the first photo sensor 5153, that is, when the second blocking piece 51522 blocks the second photo sensor 5154, the second photo sensor 5154 gives a signal to the external control system, and the downward movement of the first Z-axis motion assembly 511 is forcibly stopped, and an alarm is issued.

As shown in FIG. 12, the rotary driving assembly 513 includes a connection plate 5131, a first servo motor 5132, a speed reducer 5133, a torque sensor 5134 and a pneumatic slip ring 5135, wherein the connection plate 5131 and the first mounting plate 512 are slidably connected through a vertical sliding rail mechanism 5136, the first servo motor 5132 is mounted on the connection plate 5131 through a first frame body, an output end of the first servo motor 5132, the speed reducer 5133, the torque sensor 5134 and the pneumatic slip ring 5135 are sequentially connected in a height direction, the torque sensor 5134 is used for monitoring tightening torque, and the pneumatic slip ring 5135 can prevent an air source pipeline communicated with the first clamping jaw 514 from winding when the first clamping jaw 514 rotates. Wherein one end of the moving plate 5152 is fixedly disposed on the connection plate 5131.

As shown in fig. 10, the grabbing mechanism 54 and the pre-tightening mechanism 51 are arranged on the first mounting plate 512 in parallel, the grabbing mechanism 54 comprises a fifth Z-axis moving assembly 541 and a second clamping jaw 542, the fifth Z-axis moving assembly 541 is arranged on the first mounting plate 512 through a second frame body, the fifth Z-axis moving assembly 541 can move horizontally or in the height direction along with the first mounting plate 512, the second clamping jaw 542 is arranged on the output end of the fifth Z-axis moving assembly 541, and the second clamping jaw 542 can be driven to move in the height direction through the fifth Z-axis moving assembly 541, so that the second clamping jaw 542 can clamp the retainer ring 90 on the temporary retainer ring storage station 55 and place the retainer ring on the retainer ring gluing mechanism 53 (particularly the gluing positioning disc 536). It should be noted that, in this embodiment, two clamping jaws, i.e., the first clamping jaw 514 and the second clamping jaw 542, are disposed on the first traverse mechanism 52, so that the circulation efficiency of the retainer ring 90 (i.e., from the temporary retainer ring storage station 55 to the glue spreading positioning disc 536 to the pre-tightening station 20 d) may be improved, and in some embodiments, only the first clamping jaw 514 may be designed.

As shown in fig. 14, the retainer ring gluing mechanism 53 includes a fifth traverse mechanism 531, a second vertical frame 532, a sixth Z-axis moving assembly 533, a second head support plate 534, a second glue nozzle 535, a glue positioning plate 536, and a glue motor 537;

As shown in fig. 14, the glue positioning plate 536 is disposed on a moving path of the second clamping jaw 542, the glue positioning plate 536 is used for placing the retainer ring 90 to be glued, the glue motor 537 is disposed on the workbench 10, an output end of the glue motor 537 is coaxially connected with the glue positioning plate 536, the glue positioning plate 536 can be driven to horizontally rotate by the glue motor 537 to uniformly glue circumferentially, the fifth traversing mechanism 531 is horizontally disposed on the workbench 10, the second vertical frame 532 is disposed on the fifth traversing mechanism 531, the second vertical frame 532 is driven to move towards the glue positioning plate 536 in a horizontal direction by the fifth traversing mechanism 531 or to move away from the glue positioning plate 536, the sixth Z-axis moving assembly 533 is disposed on the second vertical frame 532, the second glue head supporting plate 534 is disposed on an output end of the sixth Z-axis moving assembly 533, the second glue head supporting plate 534 can be driven to move up and down by the sixth Z-axis moving assembly 533, the second glue nozzle 535 is disposed on the second glue head supporting plate 534, and the glue solution is sprayed to the retainer ring 90 by the second glue nozzle 535. The retainer ring gluing mechanism 53 in this embodiment can freely move to a suitable gluing position for gluing through multiple degrees of freedom.

As shown in fig. 15, the tightening assembly 60 includes a second traversing mechanism 61, a second mounting plate 62, a second Z-axis motion assembly 63, a third mounting plate 64, a tightening gun 65, and a tightening sleeve 66;

The second traversing mechanism 61 is arranged on the workbench 10, the second traversing mechanism 61 is arranged on one side of the turntable 20, the second mounting plate 62 is arranged on the second traversing mechanism 61, the second mounting plate 62 can move in a second preset horizontal direction under the driving of the second traversing mechanism 61, the second preset horizontal direction is horizontally arranged towards the horizontal direction of the tightening station 20e, the second Z-axis movement assembly 63 is arranged on the second mounting plate 62, the third mounting plate 64 is slidably arranged on the second mounting plate 62, the sliding direction of the third mounting plate 64 is arranged in the height direction, the output end of the second Z-axis movement assembly 63 is connected with the third mounting plate 64, the second Z-axis movement assembly 63 can drive the third mounting plate 64 to move up and down in the height direction, the tightening gun 65 is vertically arranged on the third mounting plate 64, the tightening sleeve 66 is arranged on the output end of the tightening gun 65, when the third mounting plate 64 moves down, the tightening sleeve 66 can be sleeved on the retainer ring 90 to be assembled, the tightening sleeve 66 is driven by the tightening gun 65 to rotate, and accordingly the tightening sleeve 66 is driven by the tightening gun 65 to rotate the retainer ring 90 to be assembled in the required state, the tightening torque is monitored in the process of the bearing 80. The specific construction of the tightening gun 65 is referred to in the prior art, and will not be described here in detail, one type of tightening gun is provided in this embodiment, for example, an in-line stationary wrench.

As shown in fig. 16 and 17, the assembly detection assembly 70 includes a third traverse mechanism 71, a fourth mounting plate 72, a horizontal slide rail mechanism 73, a fifth mounting plate 74, a third Z-axis movement assembly 75, a test stand 76, a pneumatic finger 77, a reference block 78, and a telescopic displacement detection member 79;

The third traversing mechanism 71 is horizontally arranged on the workbench 10, the fourth mounting plate 72 is horizontally arranged on the third traversing mechanism 71, the third traversing mechanism 71 can drive the fourth mounting plate 72 to move in a third preset horizontal direction, the third preset horizontal direction is configured to horizontally face the direction of the assembly detection station 20f, the upper surface of the fourth mounting plate 72 is provided with a horizontal sliding rail mechanism 73, the fifth mounting plate 74 is horizontally arranged on the horizontal sliding rail mechanism 73, the horizontal sliding rail mechanism 73 can drive the fifth mounting plate 74 to move, the moving direction of the fifth mounting plate 74 is vertical to the moving direction of the fourth mounting plate 72 in the horizontal plane, namely, the moving direction of the fifth mounting plate 74 is vertical to the third preset horizontal direction, the third Z-axis moving assembly 75 is arranged on the fifth mounting plate 74, the test bench 76 is arranged at the output end of the third Z-axis moving assembly 75, and the test bench 76 can be driven to move in the height direction through the third Z-axis moving assembly 75.

The test bench 76 in this embodiment can perform position adjustment in three-dimensional space, so that the test bench 76 can be moved to a proper position to detect the assembled product, and the test bench is also convenient for adapting to different product detection. The pneumatic finger 77 is arranged on the lower surface of the test bench 76, the pneumatic finger 77 is used for grabbing bad products to a NG station, the reference block 78 and the pneumatic finger 77 are arranged on the lower side of the test bench 76 in parallel, the lower surface of the reference block 78 is configured as a locating surface, when the reference block 78 moves downwards, the locating surface can be attached to the upper surface of the bearing 80, so that the locating between the reference block 78 and the bearing 80 is completed, the telescopic displacement detection member 79 is arranged on the reference block 78, the testing end of the telescopic displacement detection member 79 protrudes downwards below the locating surface, when the reference block 78 moves downwards, the testing end of the telescopic displacement detection member 79 can touch the upper surface of the retainer ring 90 (when the retainer ring 90 is assembled on the bearing 80), the telescopic displacement detection member 79 can shrink upwards, and a shrinkage value is obtained, the shrinkage value is the depth position of the retainer ring 90 mounted on the bearing 80, and whether the assembled retainer ring 90 and bearing 80 meet the requirement or not is judged through the value.

As shown in fig. 17, in some embodiments, the assembly detection assembly 70 further includes a floating mechanism 710, the reference block 78 is mounted on the test stand 76 through the floating mechanism 710, the floating mechanism 710 includes a second guide post 7101, a transition block 7102 and an elastic member 7103, the second guide post 7101 is slidably disposed through the test stand 76 in a height direction, the transition block 7102 is disposed at a lower end of the second guide post 7101, the reference block 78 is mounted on the transition block 7102, the elastic member 7103 (e.g., a spring) is coaxially disposed on an outer periphery of the second guide post 7101, an upper end of the elastic member 7103 is abutted against the test stand 76, a lower end of the elastic member 7103 is abutted against an upper surface of the transition block 7102, and the elastic member 7103 is capable of giving an elastic force for downward movement of the transition block 7102. The elastic member 7103 is provided in this embodiment, so that the positioning surface of the reference block 78 is pressed against the bearing 80, thereby ensuring accuracy of positioning reference, and avoiding damage caused by rigid contact between the reference block 78 and the bearing 80.

The embodiment also discloses a method for assembling the bearing 80 and the retainer ring 90, which comprises the following steps:

Step S100, an external manipulator or a person places the bearing 80 to be assembled on the mounting mechanism 21 of the loading and unloading station 20a, specifically, places the bearing 80 on the center mounting plate 213;

Step S200, rotating the turntable 20 by an angle of one station, so that the bearing 80 to be assembled rotates to the visual detection station 20b, and the lifting and rotating mechanism 22 below the visual detection station 20b lifts the bearing 80 and drives the bearing 80 to rotate, specifically:

The follower 226 is driven to move upwards through the jacking telescopic piece 223, the follower 226 drives the jacking table 221 to move upwards, the jacking table 221 passes through the turnplate 20 and the hollowed holes of the first bottom plate 211 to move upwards, the upper surface of the jacking table 221 is attached to and abutted against the lower surface of the second bottom plate 212, the central mounting plate 213 arranged on the second bottom plate 212 and the bearing 80 to be assembled are also jacked upwards, and at the moment, the second positioning pins 2132 on the side wall of the central mounting plate 213 are separated from the positioning grooves 211a on the first bottom plate 211 upwards, so that the degree of freedom of horizontal rotation of the central mounting plate 213 is released;

In the process of lifting the jacking table 221 upwards, the rotary table 222 is lifted together, and a positioning hole 222a on the rotary table 222 and a first positioning pin 2131 on the lower surface of the central mounting plate 213 are aligned and inserted together at first, so that the positioning of the rotary table 222 and the central mounting plate 213 is realized;

The visual detection assembly 30 carries out omnibearing detection on the bearing 80 in the rotating process, the jacking table 221 moves downwards after the detection is finished, the second bottom plate 212 and the center mounting plate 213 fall onto the first bottom plate 211 again, and the second positioning pins 2132 on the side wall of the center mounting plate 213 are put into the positioning grooves 211a on the first bottom plate 211 again to realize positioning;

Step S300, the detected bearing 80 rotates a station angle along with the turntable 20 again, the bearing 80 to be assembled enters the gluing station 20c, the jacking rotation mechanism 22 below the gluing station 20c jacks up and rotates the bearing 80 again (the principle description of the part refers to the working principle of the jacking rotation mechanism 22 in step S200, which is not repeated here), the first glue spraying nozzle 45 of the bearing gluing assembly 40 sprays glue towards the bearing 80 to be assembled, the first glue spraying nozzle 45 is used for gluing the circumference of the bearing 80 in the rotating process of the bearing 80, the jacking rotation mechanism 22 jacking table 221 moves downwards after the gluing is completed, the second bottom plate 212 and the central mounting plate 213 fall onto the first bottom plate 211 again, and the second positioning pin 2132 on the side wall of the central mounting plate 213 is placed into the positioning groove 211a on the first bottom plate 211 again to realize positioning;

in step S400, the bearing 80 after the gluing is completed rotates by a station angle along with the turntable 20 again, the bearing 80 to be assembled enters a pre-tightening station 20d, the second clamping jaw 542 of the grabbing mechanism 54 clamps the retaining ring 90 to be assembled on the temporary retaining station 55 and transfers the retaining ring 90 to the gluing positioning disc 536 of the retaining ring gluing mechanism 53, the second glue spraying nozzle 535 of the retaining ring gluing mechanism 53 sprays glue towards the retaining ring 90, meanwhile, the gluing motor 537 drives the gluing positioning disc 536 to rotate so as to realize circumferential uniform glue spraying of the retaining ring 90, after the glue spraying is completed, the first clamping jaw 514 clamps the retaining ring 90 to be assembled to move to the position right above the bearing 80 to be assembled, and pre-tightens the retaining ring 90 to be assembled on the bearing 80, specifically:

The first Z-axis moving assembly 511 drives the first mounting plate 512, the first clamping jaw 514 and the retainer ring 90 to move downwards, after the retainer ring 90 contacts the bearing 80, the first clamping jaw 514, the rotary driving assembly 513 and the moving plate 5152 are supported by the bearing 80 due to the blocking of the bearing 80, and the first Z-axis moving assembly 511 continuously drives the first mounting plate 512 to move downwards, so that relative sliding in the height direction occurs between the connecting plate 5131 of the rotary driving assembly 513 and the first mounting plate 512 (because the connecting plate 5131 is in sliding connection with the first mounting plate 512), when the first blocking piece 51521 on the moving plate 5152 is separated from the cooperation with the first photoelectric sensing piece 5153, the first photoelectric sensing piece 5153 generates a first feedback signal and transmits the first feedback signal to the first Z-axis moving assembly 511 and the first servo motor 5132 of the rotary driving assembly 513, and the first Z-axis moving assembly 511 continuously drives the first mounting plate 512 to move downwards for t seconds after receiving the first feedback signal;

The first servo motor 5132 starts to drive the first clamping jaw 514 and the retaining ring 90 to rotate after receiving the first feedback signal t seconds, the retaining ring 90 is screwed on the bearing 80, meanwhile, the moving plate 5152 and the first clamping jaw 514 are screwed downwards along with the retaining ring 90, so that the first baffle 51521 on the moving plate 5152 continues to move downwards, when the first baffle 51521 is matched with the first photoelectric sensing element 5153 again, the first photoelectric sensing element 5153 generates a second feedback signal and transmits the second feedback signal to the first Z-axis movement assembly 511 and the first servo motor 5132, the first servo motor 5132 stops rotating immediately and simultaneously the first clamping jaw 514 releases the retaining ring 90, and the first Z-axis movement assembly 511 drives the first mounting plate 512, the moving plate 5152 and the first clamping jaw 514 to reset upwards;

In step 500, the pre-screwed retainer ring 90 and the bearing 80 rotate one station angle again along with the turntable 20, enter the screwing station 20e, the second traversing mechanism 61 of the screwing assembly 60 drives the screwing gun 65 and the screwing sleeve 66 to move to the position right above the retainer ring 90 and the bearing 80, the screwing sleeve 66 moves downwards under the driving of the second Z-axis moving assembly 63 and is coaxially sleeved on the retainer ring 90, and then the screwing gun 65 drives the screwing sleeve 66 to rotate, so that the retainer ring 90 is formally screwed on the bearing 80. The tightening gun 65 needs to monitor torque when being tightened, and after the tightening gun 65 runs for a period of time, whether deviation exists in output torque needs to be detected, so that poor production of products due to the reasons of failure, aging and the like of the tightening gun 65 is prevented;

Step 600, the bearing 80 after pre-tightening rotates by a station angle along with the turntable 20 again, the assembled retainer ring 90 and bearing 80 enter the assembly detection station 20f, and the assembly detection assembly 70 detects whether the assembled product meets the standard, specifically:

The test bench 76 is driven to move in the height direction by the movement of the fourth mounting plate 72 and the fifth mounting plate 74 in two directions which are mutually perpendicular in the horizontal plane and the movement of the third Z-axis movement assembly 75, so that the test bench 76 can accurately move to the position right above the bearing 80, then the third Z-axis movement assembly 75 drives the reference block 78 to move downwards, so that the positioning surface of the reference block 78 is propped against the bearing 80, meanwhile, the telescopic displacement detection member 79 is propped against the retaining ring 90 assembled on the bearing 80, the telescopic displacement detection member 79 is blocked by the retaining ring 90 and is retracted upwards, the retracted displacement is recorded, whether the assembly meets the standard or not is judged according to the displacement, if the assembly does not meet the standard, the bearing 80 and the retaining ring 90 are taken down together by the pneumatic finger 77 on the test bench 76 and put in the NG station, and if the assembly meets the standard, the assembly is circulated to the next station;

In step S700, the check ring 90 and the bearing 80 which reach the standard are detected to rotate by one station angle again along with the turntable 20, and the check ring 90 and the bearing 80 after detection enter the loading and unloading station 20a for unloading, and manual or mechanical arm unloading can be adopted.

The first traversing mechanism 52, the second traversing mechanism 61, the third traversing mechanism 71, the fourth traversing mechanism 41 and the fifth traversing mechanism 531 in this embodiment may refer to the slide rail and the slide block device on the existing production line, and the first Z-axis moving assembly 511, the second Z-axis moving assembly 63, the third Z-axis moving assembly 75, the fourth Z-axis moving assembly 43, the fifth Z-axis moving assembly 541 and the sixth Z-axis moving assembly 533 may refer to the existing telescopic cylinder, the Z-axis servo driving mechanism and the like, and this embodiment will not be described in detail.

The assembly device and the assembly method of the bearing and the retainer ring have the following advantages:

1. the gluing, assembling, screwing and detecting processes in the assembly of the bearing 80 and the retainer ring 90 are integrated, and the multifunctional device is concentrated on one piece of equipment, so that the production line efficiency and the field rate utilization rate are improved, and the cost reduction and the synergy are realized;

2. the embodiment adopts a mode of pre-screwing and then screwing to realize assembly, wherein the pre-screwing is used for preventing the screw teeth from being damaged by direct screwing, the pre-screwing is performed with small torque, and the final screwing is performed with large torque, so that the damage to products in the assembly process can be effectively reduced;

3. the pre-tightening mechanism 51 adopts a form of up-down sliding connection, so that the product is prevented from being injured in the tooth recognition process, the rotation is driven by servo, the torque sensor 5134 monitors the torque in real time, and the pneumatic slip ring 5135 can rotate without limit after the first clamping jaw 514 is used for clamping the retainer ring 90.

4. The installation mechanism 21 and the jacking rotating mechanism 22 are matched, after the installation mechanism 21 reaches a station, the jacking rotating mechanism 22 jacks up the second bottom plate 212 of the installation mechanism 21 (meanwhile, the center installation plate 213 is positioned with the rotary table 222 at the bottom), the second bottom plate 212 is temporarily separated from the rotary table 20, and the positioning reference of each station is on the jacking of the station.

In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present application, and they should be included in the scope of the present application.

Claims

1. An assembly apparatus for a bearing and a retainer ring, comprising:

The turntable (20) is rotatably arranged at a preset position, and the turntable (20) is used for circulating a bearing (80) to be assembled and a check ring (90);

The pre-tightening assembly (50) comprises a pre-tightening mechanism (51), the pre-tightening mechanism (51) comprises a first Z-axis movement assembly (511), a first mounting plate (512), a rotary driving assembly (513), a first clamping jaw (514) and a movement control assembly (515), the first Z-axis movement assembly (511) is located on one side of the turntable (20), the first mounting plate (512) is arranged on the first Z-axis movement assembly (511), the first Z-axis movement assembly (511) can drive the first mounting plate (512) to move in the height direction, the rotary driving assembly (513) is in sliding connection with the first mounting plate (512) in the height direction, a first clamping jaw (514) is arranged on the output end of the rotary driving assembly (513), and the first clamping jaw (514) is used for clamping a retaining ring (90) to be assembled and drives the first clamping jaw (514) and the retaining ring (90) to be assembled to rotate through the rotary driving assembly (513);

the motion control assembly (515) comprises a stop block (5151), a moving plate (5152) and a first photoelectric sensor (5153), wherein the stop block (5151) is arranged on a first mounting plate (512), two stop surfaces (51511) used for limiting the moving plate (5152) are arranged on the stop block (5151) at intervals along the height direction, one end of the moving plate (5152) is arranged on the rotation driving assembly (513), the moving plate (5152) is located between the two stop surfaces (51511), a first baffle (51521) used for being matched with the first photoelectric sensor (5153) to trigger the first photoelectric sensor (5153) to generate a signal is arranged on the stop block (5151) or the first mounting plate (512), the first photoelectric sensor (5153) is arranged below the moving plate (5152), and the first photoelectric sensor (5153) is in communication connection with the first Z-axis motion assembly (511) and the rotation driving assembly (513).

2. The bearing and retainer ring assembly device according to claim 1, wherein the motion control assembly (515) further comprises a second photo sensor (5154), the second photo sensor (5154) is disposed on the stopper (5151) or the first mounting plate (512), the moving plate (5152) is provided with a second baffle (51522) for cooperating with the second photo sensor (5154) to trigger the second photo sensor (5154) to generate a signal, and the second photo sensor (5154) and the first photo sensor (5153) are disposed above and below the moving plate (5152), respectively.

3. The assembly device for the bearings and the retainer rings according to claim 2, wherein the rotary driving assembly (513) comprises a connecting plate (5131), a first servo motor (5132), a speed reducer (5133), a torque sensor (5134) and a pneumatic slip ring (5135), the connecting plate (5131) is connected to the first mounting plate (512) in a sliding mode in the height direction, the first servo motor (5132) is arranged on the connecting plate (5131), the output end of the first servo motor (5132), the speed reducer (5133), the torque sensor (5134), the pneumatic slip ring (5135) and the first clamping jaw (514) are sequentially connected, the first servo motor (5132) is in communication connection with the first photoelectric sensing piece (5153), and one end of the moving plate (5152) is arranged on the connecting plate (5131).

4. The assembly device of a bearing and a retainer ring according to claim 2, characterized in that the pre-tightening assembly (50) further comprises a first traversing mechanism (52), a retainer ring gluing mechanism (53) and a gripping mechanism (54);

The device comprises a first transverse moving mechanism (52), a first Z-axis moving assembly (511), a grabbing mechanism (54), a first installation plate (512), a first glue spreading mechanism (53) and a temporary retainer ring storage station (55) arranged on one side, away from the first Z-axis moving assembly (511), of the grabbing mechanism (54), wherein the first transverse moving mechanism (52) is arranged on one side of a rotary table (20), the first Z-axis moving assembly (511) is arranged on the first transverse moving mechanism (52), the grabbing mechanism (54) is arranged on the first installation plate (512), the first transverse moving mechanism (52) can drive the first Z-axis moving assembly (511) and the grabbing mechanism (54) to move in a first preset horizontal direction, the temporary retainer ring storage station (55) is arranged on one side, away from the first Z-axis moving assembly (511), of the grabbing mechanism (54) can grab a retainer ring (90) to be assembled, and the retainer ring (53) is arranged on one side of the grabbing mechanism (54) along the first preset horizontal direction.

5. The assembly device of a bearing and a retainer ring according to any one of claims 1 to 4, wherein the turntable (20) is provided with a loading and unloading station (20 a), a visual inspection station (20 b), a gluing station (20 c), a pre-tightening station (20 d), a tightening station (20 e) and an assembly inspection station (20 f) in this order along the circumference thereof;

one side of the visual detection station (20 b) is provided with a visual detection assembly (30), and the visual detection assembly (30) is used for detecting whether the bearing (80) to be assembled has poor appearance or not;

One side of the gluing station (20 c) is provided with a bearing gluing assembly (40), and the bearing gluing assembly (40) is used for gluing a bearing (80) to be assembled;

One side of the pre-tightening station (20 d) is provided with the pre-tightening assembly (50), and the pre-tightening assembly (50) is used for pre-tightening a retainer ring (90) to be assembled on the bearing (80);

one side of the tightening station (20 e) is provided with a tightening assembly (60), and the tightening assembly (60) is used for tightening a retainer ring (90) to be assembled on a bearing (80);

One side of the assembly detection station (20 f) is provided with an assembly detection assembly (70), and the assembly detection assembly (70) is used for detecting the assembled check ring (90) and the bearing (80).

6. The assembly device of bearings and collars according to claim 5, characterized in that the visual inspection station (20 b) and the gluing station (20 c) are provided with mounting means (21);

The mounting mechanism (21) comprises a first bottom plate (211), a second bottom plate (212) and a central mounting plate (213), wherein the first bottom plate (211) is arranged on the upper surface of the turntable (20), the second bottom plate (212) is arranged on the first bottom plate (211), the second bottom plate (212) is slidably connected with the first bottom plate (211) through a first guide post (214) so that the second bottom plate (212) can move in the height direction relative to the first bottom plate (211), the central mounting plate (213) can be horizontally and rotatably arranged on the second bottom plate (212), a bearing (80) to be assembled is arranged on the central mounting plate (213), and a first positioning pin (2131) extending downwards is arranged on the lower surface of the central mounting plate (213);

the turntable (20), the first bottom plate (211) and the second bottom plate (212) are all provided with hollowed holes for exposing the center mounting plate (213) from the bottom of the turntable (20), and at least part of the second bottom plate (212) is exposed in the hollowed holes of the first bottom plate (211);

the lifting rotary mechanism (22) is arranged below the mounting mechanism (21), the lifting rotary mechanism (22) is arranged below the turntable (20), the lifting rotary mechanism (22) comprises a lifting table (221), a rotary table (222), a lifting telescopic piece (223) and a rotary driving piece (224), the lifting table (221) is coaxially arranged below the second bottom plate (212), the upper surface of the lifting table (221) can upwards penetrate through a hollowed-out hole of the first bottom plate (211) and is propped against the bottom surface of the second bottom plate (212), the rotary table (222) is rotatably arranged in the lifting table (221), the upper surface of the rotary table (222) is lower than or flush with the upper surface of the lifting table (221), a positioning hole (222 a) matched with the first positioning pin (2131) in an inserting mode is formed in the rotary table (222), the lifting telescopic piece (223) is connected with the lifting table (221) and used for driving the lifting table (221) to move up and down, and the rotary driving piece (224) is connected with the rotary table (222) and is used for driving the rotary table (222) to rotate horizontally.

7. The assembly device of a bearing and a retainer ring according to claim 6, characterized in that the first bottom plate (211) is symmetrically provided with two positioning grooves (211 a);

The center mounting plate (213) is provided with second positioning pins (2132) which are in one-to-one correspondence with the positioning grooves (211 a), and the second positioning pins (2132) can be placed into the positioning grooves (211 a) along the height direction.

8. The bearing and retainer ring assembly device of claim 5, wherein the tightening assembly (60) includes a second traversing mechanism (61), a second mounting plate (62), a second Z-axis motion assembly (63), a third mounting plate (64), a tightening gun (65), and a tightening sleeve (66);

The second transverse moving mechanism (61) is arranged on one side of the rotary table (20), the second mounting plate (62) is arranged on the second transverse moving mechanism (61), the second transverse moving mechanism (61) can drive the second mounting plate (62) to move in a second preset horizontal direction, the second Z-axis moving assembly (63) is arranged on the second mounting plate (62), the third mounting plate (64) is connected with the output end of the second Z-axis moving assembly (63), the third mounting plate (64) is driven to move in the height direction through the second Z-axis moving assembly (63), the tightening gun (65) is arranged on the third mounting plate (64), the tightening sleeve (66) is arranged on the output end of the tightening gun (65), and the tightening sleeve (66) is used for being sleeved on a retainer ring (90) to be assembled.

9. The bearing and retainer ring assembly device of claim 5, wherein the assembly detection assembly (70) comprises a third traversing mechanism (71), a fourth mounting plate (72), a horizontal slide rail mechanism (73), a fifth mounting plate (74), a third Z-axis motion assembly (75), a test stand (76), a pneumatic finger (77), a reference block (78), and a telescoping displacement detector (79);

The device comprises a turntable (20), a third transverse moving mechanism (71), a fourth mounting plate (72), a third Z-axis moving assembly (75), a test table (76), a pneumatic finger (77), a reference block (78), a positioning surface, a telescopic piece (79) and a telescopic piece, wherein the third transverse moving mechanism (71) is arranged on one side of the turntable (20), the fourth mounting plate (72) is arranged on the third transverse moving mechanism (71), the third mounting plate (71) drives the fourth mounting plate (72) to move in a third preset horizontal direction through the third transverse moving mechanism (71), the horizontal sliding rail mechanism (73) is arranged on the fourth mounting plate (72), the fifth mounting plate (74) is arranged on the horizontal sliding rail mechanism (73), the horizontal sliding rail mechanism (73) can drive the fifth mounting plate (74) to slide in a direction perpendicular to the third preset horizontal direction, the third Z-axis moving assembly (75) is arranged on the fifth mounting plate (74), the test table (76) is arranged on the third Z-axis moving assembly (75), the test table (76) is driven by the third Z-axis moving assembly (75) to move in the height direction, the pneumatic finger (77) is arranged on the test table (76), the lower surface of the reference block (78) is configured to be attached to the bearing (80), the positioning surface, the positioning piece (79) can be detected, and the telescopic piece (79) is arranged below the positioning piece and the telescopic piece is detected to be displaced below the positioning surface.

10. The assembly device for the bearing and the retainer ring according to claim 9, wherein the assembly detection assembly (70) further comprises a floating mechanism (710), the reference block (78) is connected with the test bench (76) through the floating mechanism (710), the floating mechanism (710) comprises a second guide post (7101), a transition block (7102) and an elastic piece (7103), the second guide post (7101) is arranged on the test bench (76) in a sliding mode along the height direction, the transition block (7102) is connected to the lower end of the second guide post (7101), the reference block (78) is arranged on the transition block (7102), the elastic piece (7103) is sleeved on the second guide post (7101), and two ends of the elastic piece (7103) are respectively abutted against the transition block (7102) and the test bench (76).

11. A method of assembling a bearing and a retainer, wherein the assembling apparatus of a bearing and a retainer according to any one of claims 1 to 10 is used, the assembling method comprising:

pre-tightening a retainer ring to be assembled on a bearing:

12. The method of assembling a bearing and retainer ring of claim 11, wherein the method of assembling comprises:

Step S100, placing a bearing to be assembled on an upper blanking station;

Step S200, rotating a turntable by an angle of one station to enable a bearing to be assembled to rotate to a visual detection station, lifting a second bottom plate of a mounting mechanism upwards by a lifting table below the visual detection station, simultaneously realizing insertion and positioning of a positioning hole on the turntable and a first positioning pin on a central mounting plate, then driving the central mounting plate and the bearing to be assembled on the central mounting plate to rotate by the turntable, carrying out omnibearing appearance detection on the bearing in the rotating process by a visual detection assembly, moving the lifting table downwards after detection is finished, and falling the second bottom plate and the central mounting plate onto the first bottom plate again;

step S300, detecting the angle of a station rotated by the bearing along with the turntable after finishing, enabling the bearing to be assembled to enter a gluing station, jacking and rotating the bearing again by a jacking rotating mechanism below the gluing station, enabling the bearing gluing assembly to glue the bearing circumferentially in the rotating process of the bearing, enabling the jacking platform to move downwards after the gluing is finished, and enabling the second bottom plate and the central mounting plate to fall onto the first bottom plate again;

step S400, the bearing after the glue coating is completed rotates by a station angle along with the turntable again, the bearing to be assembled enters a pre-tightening station, the first clamping jaw clamps the check ring to be assembled to move to the position right above the bearing to be assembled, the check ring to be assembled is pre-tightened on the bearing, and the check ring and the bearing enter the next station together;

Step 500, the bearing after pre-tightening rotates by a station angle along with the turntable again, a check ring and the bearing to be assembled enter a tightening station, a second traversing mechanism of the tightening assembly drives a tightening gun and a tightening sleeve to move to the position right above the check ring and the bearing, the tightening sleeve moves downwards and is sleeved on the check ring under the driving of a second Z-axis moving assembly, and the tightening gun drives the tightening sleeve to rotate and tightens the check ring on the bearing;

step 600, the bearing after pre-tightening rotates by a station angle along with the turntable again, the assembled retainer ring and the bearing enter an assembly detection station, the third Z-axis movement assembly drives the test bench to move downwards, the positioning surface of the reference block abuts against the bearing, meanwhile, the telescopic displacement detection piece abuts against the retainer ring on the bearing, the telescopic displacement detection piece retracts upwards and obtains the retracted displacement, whether the assembly meets the standard or not is judged according to the displacement, if the assembly does not meet the standard, the bearing and the retainer ring are taken down together by a pneumatic finger on the test bench, and if the assembly meets the standard, the assembly is transferred to the next station;

and S700, detecting that the check ring and the bearing which reach the standards rotate by one station again along with the turntable, and the check ring and the bearing after detection enter the loading and unloading station again to carry out unloading.