CN113090667B

CN113090667B - Machining method of bearing retainer

Info

Publication number: CN113090667B
Application number: CN202110355855.6A
Authority: CN
Inventors: 赵培振; 郑广会
Original assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Current assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2022-08-23
Anticipated expiration: 2041-04-01
Also published as: CN113090667A

Abstract

The invention relates to a bearing retainer, a bearing and a processing method of the bearing retainer, wherein plastic dipping is carried out on the surface side of a metal base part, a thickened area is arranged on the inner edge of a pocket hole, a plastic dipping layer in the thickened area is thickened, plastic dipping powder can be uniformly dipped and molded on the inner surface and the outer surface of the bearing retainer, friction between the retainer and an inner ring and between the retainer and an outer ring is reduced, more plastic dipping powder can be attached to the inner edge of the pocket hole at the mounting position of a rolling body, namely the pocket hole, more plastic dipping is carried out on the inner edge of the pocket hole, friction between the retainer and the rolling body is reduced, the thickened pocket hole edge is more wear-resistant, and the problems in the prior art are solved.

Description

Machining method of bearing retainer

Technical Field

The invention relates to the field of bearing part processing, in particular to a bearing retainer, a bearing and a processing method of the bearing retainer.

Background

The bearing retainer uniformly separates the rolling bodies in the bearing from each other, so that each rolling body normally rolls between the inner ring and the outer ring. In addition, the bearing retainer has the functions of guiding the rolling bodies to move, improving the lubricating condition in the bearing, preventing the rolling bodies from falling off and the like. When the rolling bearing works, the bearing is heated and abraded due to sliding friction, particularly under the condition of high-speed running, due to the action of centrifugal force and inertia force, collision, frictional wear and heating of rolling bodies, inner and outer rings and the retainer in the bearing are accelerated, and in severe cases, the retainer can be burnt and broken, so that the bearing cannot be normally used, and the damage of the retainer accounts for a large proportion of the damage of the bearing. In the prior art, in order to make the retainer more durable and less prone to damage, the retainer is often improved from the material of the retainer, but the improvement on the material is often higher in cost, and the time and the period for improvement are both longer. The friction and wear of the retainer, the rolling body, the inner ring and the outer ring are one of the main reasons for damaging the retainer, and among the friction and wear of the retainer and the rolling body are the most serious, so that the friction and wear of the retainer, the rolling body, the inner ring and the outer ring are reduced, and particularly the friction and wear between the retainer and the rolling body are reduced more, which is a problem to be solved urgently.

Disclosure of Invention

The invention provides a bearing retainer, a bearing and a processing method of the bearing retainer, which can uniformly dip-mold plastic dipping powder on the inner surface and the outer surface of the bearing retainer, reduce the friction between the retainer and an inner ring and an outer ring, and can ensure that more plastic dipping powder can be attached to the inner edge of a pocket at the mounting position of a rolling body, namely the pocket position, perform more plastic dipping on the inner edge of the pocket, reduce the friction between the retainer and the rolling body, ensure that the thickened pocket edge is more wear-resistant, and solve the problems in the prior art.

The invention provides a processing method of a bearing retainer, which comprises the following steps: step 1, providing a plastic dipping pool with a plastic dipping cavity, wherein the plastic dipping pool comprises a plastic dipping area and a plastic spraying area, and the plastic spraying area is arranged on the upper side of the plastic dipping area;

step 2, pre-treating the bearing retainer by plastic dipping;

step 3, placing the bearing retainer horizontally, vertically moving the bearing retainer and placing the bearing retainer in the plastic dipping cavity for primary plastic dipping;

step 4, moving the bearing retainer upwards to a plastic spraying area, and spraying powder to the inner edge of the pocket;

step 5, turning the bearing retainer by 180 degrees, placing the bearing retainer downwards in a plastic dipping cavity, and carrying out secondary plastic dipping;

and 6, moving the bearing retainer out of the plastic dipping cavity.

Further, the step 4 includes:

and 4.1, after powder is sprayed into the pockets, moving the bearing retainer upwards for a certain distance, and blowing hot air to the inner edges of the pockets, wherein the temperature of the hot air is lower than that of the bearing retainer.

Further, there is provided: the clamping assembly comprises a first clamping part and a second clamping part, and the first clamping part and the second clamping part clamp different positions of the bearing retainer;

the lifting device is connected with the clamping device and can drive the bearing retainer to vertically move;

when the step 1-4 is executed, the first clamping part clamps the bearing retainer, and the second clamping part is separated from the bearing retainer;

the step 5 comprises the following steps:

5.1, the first clamping part moves the bearing retainer upwards to a set position;

5.2, the bearing retainer is turned over by 180 degrees by the first clamping part;

5.3, when the bearing retainer moves downwards to a set position, the second clamping part clamps the bearing, and the first clamping part is separated from the bearing retainer;

5.3, the second clamping part drives the bearing retainer to enter the plastic dipping cavity.

The bearing retainer is arranged in the plastic spraying area, the bearing retainer is arranged in the plastic dipping area, and the bearing retainer is arranged in the plastic dipping area.

Furthermore, the powder spraying device further comprises a driving ring, a fixed table, a rotating device and a driving rod, wherein one end of the driving rod is connected with the spray head, the driving ring is rotatably arranged on the upper side of the fixed table, the rotating device drives the driving ring to rotate, a plurality of arc-shaped grooves are formed in the driving ring along the circumferential interval of the driving ring, a plurality of sliding grooves extending along the radial direction of the fixed table are formed in the fixed table, the driving rod is slidably arranged in the sliding grooves, convex sliding blocks are fixedly arranged on the driving rod, the sliding blocks extend into the arc-shaped grooves, and the arc-shaped grooves can drive the sliding blocks when the driving ring rotates, so that the driving rod drives the spray head to extend into or withdraw from the pocket holes.

Furthermore, the powder spraying device also comprises a fixed table, a driving ring arranged on the upper side of the fixed table, a driving rod arranged along the fixed table in a sliding manner in the radial direction, a spring arranged between the driving rod and the fixed table, and a telescopic rod driving the driving ring to vertically move;

the spring pulling the actuating lever has the trend of inside removal, the actuating lever is followed the circumference of fixed station is provided with a plurality ofly, just the outer end of actuating lever is provided with the shower nozzle, the inner of actuating lever is provided with first inclined plane, the drive ring is provided with the second inclined plane, the telescopic link drives when the drive ring moves down, the second inclined plane with first inclined plane butt and promotion the actuating lever outwards slides.

The plastic-impregnated powder can be uniformly impregnated on the inner surface and the outer surface of the bearing retainer, so that the friction between the retainer and the inner ring and the outer ring is reduced, more plastic-impregnated powder can be attached to the inner edge of the pocket at the mounting position of the rolling body, namely the pocket position, more plastic impregnation is carried out on the inner edge of the pocket, the friction between the retainer and the rolling body is reduced, the thickened pocket edge is more wear-resistant, and the problems in the prior art are solved.

Drawings

Fig. 1 is a schematic front view of a plastic-impregnated area according to a first embodiment of the present invention.

Fig. 2 is a schematic front view of the plastic injection molding area in fig. 1.

Fig. 3 is a schematic front view of the turning process of the turning device in fig. 1.

Fig. 4 is a schematic top view of the powder spraying apparatus in fig. 1.

Fig. 5 is a schematic top view of the powder spraying device in fig. 2.

Fig. 6 is a schematic structural view of the showerhead shown in fig. 1.

Fig. 7 is a schematic structural view of the turning device and the clamping assembly in fig. 1.

Fig. 8 is a schematic view of the clamping area of the clamping assembly of fig. 7.

Fig. 9 is a schematic sectional view showing a holding plate in a state where the insulation plate of fig. 1 is lowered.

FIG. 10 is a schematic cross-sectional view of the clamping plate of FIG. 1 with the thermal insulation plate raised.

Fig. 11 is a schematic top view of the clamping plate shown in fig. 1.

Fig. 12 is a cross-sectional view of a second embodiment of a plastic dipping device provided in the present application.

Fig. 13 is an enlarged view, partially in section, of the spray gun of fig. 12.

Fig. 14 is a cross-sectional view of the curing assembly of the embodiment of fig. 12.

Fig. 15 is a perspective view of the curing assembly of the embodiment of fig. 12.

Fig. 16 is a front view of the plastic immersion device of the bearing holder of fig. 12 from another perspective.

Fig. 17 is a bearing retainer provided herein.

Fig. 18 is a partial cross-sectional view of the bearing cage provided in fig. 17.

Fig. 19 is a partial cross-sectional view of another alternative bearing cage provided herein after overmolding.

In the figure, 1, a bearing retainer; 101. a metal base; 102. a plastic-coated layer; 103. a pocket hole; 2. a plastic soaking pool; 21. a plastic dipping area; 22. a plastic spraying area; 23. an entry side; 24. turning out the side; 3. a clamping assembly; 31. a first clamping portion; 310. a first clamping area; 32. a second clamping portion; 320. a second clamping area; 3001. a clamping plate; 3002. a heat conducting plate; 3003. a heat insulation plate; 3004. an air blowing port; 3005. a plugging block; 4. a lifting device; 5. a powder spraying device; 51. a spray head; 511. a base; 512. a discharge section; 513. a drive section; 514. spraying a hole; 52. a drive ring; 53. a fixed table; 54. a drive rod; 55. a rotating device; 56. an arc-shaped slot; 57. a sliding groove; 58. a slider; 6. a turning device; 61. a turning shaft; 62. a drive body; 7. cooling and solidifying the part; 71. a cooling pipeline; 711. a notch; 8. a lifting member; 9. a rotary drive assembly; 901. a horizontal axis; 902. a fixing member; 903. a drive member; 904. a vertical axis; 905. turning over the driving piece; 10. shaping and adjusting the structure; 1001. a material spraying gun; 10011. a material spraying port; 1002. a detection switch; 11. curing the assembly; 1101. a temperature adjusting plate; 11011. an air outlet; 1102. an air duct; 1103. a temperature sensor; 1104. a heating member; 1105. a wind supply unit; 1106. an air heating chamber; 1107. an electric piston rod; 12. a thickened region.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In one technical scheme of the invention, the bearing retainer comprises a metal base 101 and a plastic coating layer 102 coated on the surface side of the metal base 101, wherein the metal base 101 is provided with a pocket 103, a thickened area 12 is divided at the inner edge of the pocket 103, and the thickness of the plastic coating layer 102 in the thickened area 12 is larger than that in other areas.

By arranging the plastic coating 102 on the surface side of the metal base 101, the wear-resistant and corrosion-resistant plastic coating 102 can be adopted, so that the wear resistance of the bearing retainer is improved, and the strength of the bearing retainer can be improved and the durability of the bearing retainer in use can be improved by selecting the strength parameters of the plastic coating 102. In particular, the thickened region 12 is provided in the pocket 103 so that when the roller rolls in the pocket 103, the plastic impregnated layer 102 is thickened in a region in the pocket 103 where wear with the roller is high, thereby further improving durability in use of the bearing cage.

In the case of the bearing cage structure, in the preferred embodiment, the inner edge of the pocket 103 is integrally divided into the thickened region 12, and as shown in fig. 19 and 18, when the pocket 103 is a circular pocket 103 or a square pocket 103, the pocket 103 may be integrally thickened.

Or, in some embodiments, the inner edge of the pocket 103 is divided into two thickened regions 12 along the circumferential direction of the bearing cage, when the bearing cage is in use, the roller and the pocket 103 have more rolling friction in the circumferential direction of the bearing cage, so that the edge of the pocket 103 can be thickened in the two directions, so that the metal base 101 of the bearing cage can maintain sufficient width at the two side walls of the pocket 103, and the structural consistency of the metal base 101 can be improved. As shown in the figure, the pocket 103 is a square pocket 103, two transverse ribs of the pocket 103 are set to be thickened regions 12, and when the roller rolls, the roller is worn more for the two regions, so that the two transverse ribs are thickened.

Preferably, the thickness of the plastic-impregnated layer 102 of the thickened region 12 is at least 0.5mm greater than that of the other regions.

The present invention also provides a bearing comprising: an inner ring; the outer ring is sleeved on the inner ring, and a space surrounding the inner ring is reserved between the outer ring and the inner ring; a bearing cage as in the above, said bearing cage being disposed in said space surrounding said inner race; and the rolling bodies are arranged in the pockets 103 of the bearing retainer and are abutted against the inner ring and the outer ring.

Method example 1

The invention provides a processing method of a bearing retainer, which comprises the following steps:

step 1, providing a plastic dipping pool with a plastic dipping cavity, wherein the plastic dipping pool comprises a plastic dipping area and a plastic spraying area, and the plastic spraying area is arranged on the upper side of the plastic dipping area;

step 2, pre-treating the bearing retainer by plastic dipping;

step 3, placing the bearing retainer horizontally, vertically moving the bearing retainer and placing the bearing retainer in the plastic dipping cavity, and carrying out primary plastic dipping;

step 4, moving the bearing retainer upwards to a plastic spraying area, and spraying powder to the inner edge of the pocket 103;

and 6, moving the bearing retainer out of the plastic dipping cavity.

After the primary plastic dipping, powder is sprayed into the pocket 103, the amount of the powder can be increased in the set area of the inner edge of the pocket 103, so that the plastic dipping layer 102 with a certain thickness is formed on the inner edge of the pocket 103 after the primary plastic dipping of the bearing retainer, and the thickened area 12 can be formed on the inner edge of the pocket 103 of the bearing retainer. Moreover, when the bearing retainer is soaked and moulded and is upwards moved, the edge that can lie in the downside in pocket 103 stores up the plastic layer more, and the entering leads to the pocket 103 inner edge to be thicker relatively in this region, once soaks to mould and soak twice and moulds the bearing retainer upset 180 between, can make the inner edge of pocket 103 because of soaking when moulding the local bodiness of gravity lead to, the bodiness that can be even symmetry.

More specifically, the step 4 includes:

and 4.1, after powder is sprayed into the pockets 103, moving the bearing retainer upwards for a certain distance, and blowing hot air to the inner edges of the pockets 103, wherein the temperature of the hot air is lower than that of the bearing retainer.

Through blowing hot-blast in to pocket 103, can make in the pocket 103 the layer 102 of moulding that soaks of local thickening can compare in other regional shaping more fast, and then can reduce or prevent that the layer 102 of moulding that soaks of thickening region 12 from flowing when the upset.

Further optimization is that: the clamping assembly comprises a first clamping part and a second clamping part, and the first clamping part and the second clamping part clamp different positions of the bearing retainer;

the step 5 comprises the following steps:

In order to better implement the method for machining the bearing retainer, the invention provides a device for machining a bearing retainer, as shown in fig. 1 to 11, comprising: a plastic soaking pool 2, a clamping device, a lifting device 4 and a powder spraying device 5. Soak and mould pond 2 and include that the district 21 and the district 22 of spraying plastics are moulded in the soaking, the district 22 of spraying plastics sets up in the upside that the district 21 was moulded in the soaking, clamping device includes clamping component 3, clamping component 3 can centre gripping bearing holder 1, elevating gear 4 connects clamping device, and can drive 1 vertical removal of bearing holder, powder spray device 5 sets up in the district 22 of spraying plastics, powder spray device 5 includes shower nozzle 51, when bearing holder 1 upwards moved to the district 21 of spraying plastics, shower nozzle 51 can stretch into the pocket hole 103 of bearing holder 1, to the injection powder of moulding plastics of pocket hole 103 inner edge.

In the technical scheme of the invention, a plastic coating pool 2 is divided into an upper area and a lower area, the upper area is a plastic coating area 22, the lower area is a plastic coating area 21, a clamping component 3 of a clamping device clamps a bearing retainer 1, and the clamping device can drive the bearing retainer 1 to move in the vertical direction under the driving of a lifting device 4, for example, the plastic coating area 21 to the plastic coating area 22 and the plastic coating area 22 to the plastic coating area 21. According to one embodiment of the invention, a bearing retainer 1 firstly enters a plastic dipping area 21 for plastic dipping through a lifting device 4 under the clamping of a clamping component 3, plastic dipping powder is coated on the surface of the bearing retainer 1 when the plastic dipping area 21 is subjected to plastic dipping to form a plastic dipping layer 102, after the plastic dipping area 21 is subjected to plastic dipping, the bearing retainer 1 moves to a plastic spraying area 22 through the lifting device 4 under the clamping of the clamping component 3, a spray head 51 extends into a pocket 103 of the bearing retainer 1 by a powder spraying device 5, and the plastic dipping powder is independently sprayed on the inner edge of the pocket 103, so that more plastic dipping powder is adhered on the inner edge of the pocket 103, and the plastic dipping layer 102 which is thicker than other areas is formed. The surface of the bearing retainer 1 is integrally subjected to plastic dipping in the plastic dipping area 21 to form a plastic dipping layer 102, so that when the bearing retainer 1 is installed on a bearing, friction among the bearing retainer, an inner ring, an outer ring and a rolling body can be reduced, and further abrasion is reduced. Carry out the injection of plastic-impregnated powder to pocket 103 inner edge alone by powder spray device 5 in spraying plastics district 22, can make more plastic-impregnated powder glue at pocket 103 inner edge, make the thickness of plastic-impregnated layer 102 of the interior edge of pocket 103 be greater than the plastic-impregnated layer 102 thickness of other regions, in bearing retainer 1 use, rolling element and the friction of pocket 103 inner edge department and wearing and tearing are serious, to carrying out powder spray alone to pocket 103 inner edge through powder spray device 5, thicken the plastic-impregnated layer 102 of here department, protection bearing retainer 1 that can be better, prolong bearing retainer 1's life.

In the technical scheme of the invention, the plastic dipping pool 2 is designed into an upper area and a lower area, the bearing retainer 1 is vertically moved between the two areas through the lifting device 4, the operation is simple, in addition, the upper area is set as the plastic spraying area 22, the lower area is set as the plastic dipping area 21, after the plastic spraying area 22 is used for independently spraying plastic dipping powder to the pocket holes 103 by the powder spraying device 5, the redundant plastic dipping powder can fall to the plastic dipping area 21 and fall to the plastic dipping powder of the plastic dipping area 21, and the bearing retainer 1 can be reused when the full-surface plastic dipping is carried out in the subsequent process, so that less waste is caused.

More specifically, the powder spraying device 5 further includes a driving ring 52, a fixed platform 53, a rotating device 55, and a driving rod 54, wherein one end of the driving rod 54 is connected to the nozzle 51, the driving ring 52 is rotatably disposed on the upper side of the fixed platform 53, the rotating device 55 drives the driving ring 52 to rotate, the driving ring 52 is provided with a plurality of arc-shaped grooves 56 along the circumferential direction thereof at intervals, the fixed platform 53 is provided with a plurality of sliding grooves 57 extending along the radial direction thereof, the driving rod 54 is slidably disposed in the sliding grooves 57, the driving rod 54 is fixedly provided with convex sliders 58, the sliders 58 extend into the arc-shaped grooves 56, the arc-shaped grooves 56 can drive the sliders 58 when the driving ring 52 rotates, so that the driving rod 54 drives the nozzle 51 to extend into or withdraw from the pocket 103.

In an embodiment of the powder spraying device 5 of the technical solution of the present invention, the fixed table 53 is a circular table, the fixed table 53 is provided with a plurality of sliding grooves 57 extending along the radial direction of the fixed table 53 on the table surface, the plurality of sliding grooves 57 are arranged along the circumferential direction of the fixed table 53 at intervals, the driving rod 54 is arranged in the sliding grooves 57, the driving ring 52 is arranged above the fixed table 53, the driving ring 52 is provided with a plurality of sliding grooves 57, the plurality of sliding grooves 57 are arranged along the circumferential direction of the driving ring 52 at intervals, the sliding blocks 58 fixed on the driving rod 54 extend into the sliding grooves 57, when the rotating device 55 rotates the driving ring 52, the sliding groove 57 of the driving ring 52 pushes the sliding block 58, the sliding block 58 drives the driving rod 54 to extend or retract along the sliding groove 57 in the radial direction of the fixed table 53, when the driving lever 54 is extended out of the sliding groove 57, the driving lever 54 drives the shower head 51 into the pocket 103, when the driving rod 54 is retracted into the sliding groove 57, the driving rod 54 drives the nozzle 51 to exit the pocket 103. In the invention, the radii of the fixed base 53 and the drive ring 52 are smaller than the radius of the bearing holder 1, and the powder spraying device 5 can pass through the middle of the bearing holder 1. The powder spraying device 5 is simple in arrangement, and when the bearing retainer 1 needs to be subjected to plastic dipping in the plastic dipping area 21, the driving rod 54 retracts into the fixed table 53, so that the plastic dipping of the whole bearing retainer 1 is not influenced; when the bearing retainer 1 needs powder spraying, when the bearing retainer 1 rises to a proper position, the driving rod 54 extends out, the spray head 51 is sent into the pocket 103, the plastic powder is sprayed on the inner edge of the pocket 103, and the plastic coating layer 102 on the inner edge of the pocket 103 is thickened.

More specifically, the powder spraying device 5 further comprises a fixed table 53, a driving ring 52 arranged on the upper side of the fixed table 53, a driving rod 54 arranged along the radial direction of the fixed table 53 in a sliding manner, a spring arranged between the driving rod 54 and the fixed table 53, and an expansion link driving the driving ring 52 to move vertically; the spring pulls the driving rod 54 to have a tendency of moving inwards, the driving rod 54 is provided with a plurality of driving rods along the circumference of the fixed platform 53, the outer end of the driving rod 54 is provided with the spray head 51, the inner end of the driving rod 54 is provided with a first inclined surface, the driving ring 52 is provided with a second inclined surface, and when the telescopic rod drives the driving ring 52 to move downwards, the second inclined surface is abutted to the first inclined surface and pushes the driving rod 54 to slide outwards.

In another embodiment of the powder spraying device 5 in the technical scheme of the invention, the fixed table 53 is a circular table, the table top of the fixed table 53 is provided with a plurality of sliding grooves 57 extending along the radial direction of the fixed table 53, the plurality of sliding grooves 57 are arranged along the circumferential direction of the fixed table 53 at intervals, the driving rod 54 is arranged in the sliding grooves 57, the driving rod 54 is connected with the fixed table 53 through a spring, the spring has a tendency of pulling the driving rod 54 inwards, a driving ring 52 is arranged above the fixed table 53, the driving ring 52 is connected with a telescopic rod capable of moving vertically, the outer end of the driving rod 54 is connected with the spray nozzle 51, the inner end of the driving rod 54 is provided with a first inclined surface, the driving ring 52 is provided with a second inclined surface, the first inclined surface is abutted against the second inclined surface, when the telescopic rod moves downwards along the vertical direction, the driving ring 52 moves downwards under the action of the telescopic rod, and the second inclined surface extrudes the first inclined surface, so that the driving rod 54 extends out, and the spray head 51 extends into the pocket 103; when the telescopic rod moves vertically upwards, the driving ring 52 moves upwards under the action of the telescopic rod, the second inclined surface no longer extrudes the first inclined surface, and under the pulling action of the spring, the driving rod 54 retracts inwards, and the spray head 51 is withdrawn from the pocket 103. The powder spraying device 5 is simple in arrangement, and when the bearing retainer 1 needs to be subjected to plastic dipping in the plastic dipping area 21, the driving rod 54 retracts into the fixed table 53, so that the plastic dipping of the whole bearing retainer 1 is not influenced; when the bearing retainer 1 needs powder spraying, when the bearing retainer 1 rises to a proper position, the driving rod 54 extends out, the spray head 51 is sent into the pocket 103, the plastic powder is sprayed on the inner edge of the pocket 103, and the plastic coating layer 102 on the inner edge of the pocket 103 is thickened.

More specifically, the nozzle 51 includes a base 511, a discharge portion 512 rotatably connected to the base 511, and a driving portion 513 for driving the discharge portion 512 to rotate, and the discharge portion 512 includes a discharge hole 514. The driving part 513 can drive the ejection part 512360 to rotate or reciprocate within a preset angle. When bearing retainer 1 soaks and moulds district 21 and soak and mould, because soak the effect of moulding powder self gravity, lead to soaking and mould the powder and can be more than other inner fringe sides in the downside of attaching to pocket 103 inner edge, when 512360 rotations of blowout part were dusted, can be through setting up in advance, the volume of dusting when dusting to pocket 103 inner edge downside is less than the volume of dusting to other inner fringe sides to make the soaking of pocket 103 inner edge mould layer 102 more even. When the portion 512 of spouting during reciprocating motion in a predetermined angle, spray powder in this predetermined angle, to should predetermine the angle in soak mould layer 102 and thicken, so that the pocket 103 inner edge soaks moulds powder thickness more even, perhaps for the thickness that makes the pocket 103 inner edge is different, and reach different effects, for example to rectangle pocket 103, can only spray powder to two long limits through setting up, make the layer 102 thickness of soaking to mould that two long limits are greater than two short limits and soak the thickness of moulding layer 102.

More specifically, the plastic dipping device of the invention further comprises: turning device 6, turning device 6 connect clamping device, and turning device 6 includes trip shaft 61, the upset driving body 62 that drives trip shaft 61 pivoted that links to each other with clamping device, and trip shaft 61 transversely sets up to can drive clamping device upset 180 at least when making it rotate.

In the technical scheme of the invention, when the bearing retainer 1 is subjected to plastic dipping in the plastic dipping area 21, the amount of the plastic dipping powder on the upward surface of the bearing retainer 1 is more than that of the downward surface of the bearing retainer 1 due to the action of the self gravity of the plastic dipping powder, so that the bearing retainer 1 is overturned by at least 180 degrees, for example 180 degrees, by the overturning device 6, the amount of the plastic dipping powder on the upward surface and the downward surface of the bearing retainer 1 is more uniform, and the thickness of the formed plastic dipping layer 102 is more uniform. In the embodiment of the invention, the overturning is carried out above the plastic dipping pool 2, and during the overturning, redundant plastic dipping powder can fall to the plastic dipping area 21 of the plastic dipping pool 2 and fall to the plastic dipping powder in the plastic dipping area 21, so that the bearing retainer 1 can be reused when being subjected to full-surface plastic dipping in the subsequent process, and less waste is caused. In addition, after the powder spraying device 5 sprays powder to the pocket 103, the redundant plastic powder that soaks of the lower side of the inner edge of the pocket 103 can also fall to the plastic soaking area 21 in the overturning process, and the plastic powder can be recycled at the later stage of the plastic soaking part, so that waste is reduced. In addition, through the overturning of the overturning device 6, redundant plastic dipping powder falls in the overturning process, so that the plastic dipping layer 102 on the surface of the bearing retainer 1 is more uniform, and the thickness inconsistency is avoided as much as possible.

More specifically, when the clamping assembly 3 clamps the bearing holder 1, the lifting device 4 drives the clamping assembly 3 to drive the bearing holder 1 to enter and exit the plastic dipping cavity, the clamping assembly 3 comprises a first clamping portion 31 and a second clamping portion 32, and the first clamping portion 31 and the second clamping portion 32 clamp different positions of the bearing holder 1.

In an embodiment of the present invention, there are three first clamping portions 31 distributed in a triangle, and three first clamping portions 31 are distributed in a triangle, and the first clamping portions 31 are matched to clamp the bearing retainer 1, for example, when the three first clamping portions 31 clamp the bearing retainer 1, the three first clamping portions 31 do not clamp the bearing retainer 1; when the three first clamping portions 31 clamp the bearing holder 1, the three first clamping portions 31 do not clamp the bearing holder 1. The first clamping portion 31 and the first clamping portion 31 cooperate to alternately clamp the bearing holder 1. For example, in the plastic coating area 21, the first clamping portion 31 clamps the bearing holder 1, when the bearing holder rises to the plastic coating area 22, the first clamping portion 31 still clamps the bearing holder 1, when the powder coating is finished, after the powder coating is turned over by the turning device 6, the first clamping portion 31 clamps the bearing holder 1, the first clamping portion 31 no longer clamps the bearing holder 1, the first clamping portion 31 clamps the bearing holder 1 and descends to enter the plastic coating area 21 under the driving of the lifting device 4, the plastic coating is performed again, the original first clamping area 310 is subjected to the plastic coating, and the bearing holder 1 can be wrapped with the plastic coating layer 102.

More specifically, the first clamping portion 31 includes an upper clamping plate and a lower clamping plate, and when the second clamping portion 32 clamps the bearing holder 1, the lower clamping plate is kept a predetermined distance from the bearing holder 1. When the second clamping part 32 clamps the bearing retainer 1, the first clamping part 31 is separated from the bearing retainer 1, because the first clamping area 310 on the upper side of the bearing retainer 1 forms a groove, when the second-time plastic dipping is performed, the groove can be filled with plastic dipping materials, so that the uniformity of the plastic dipping layer 102 on the upper side of the bearing retainer 1 is improved, and the first clamping part 31 drives the bearing retainer 1 to leave the plastic dipping cavity, the plastic dipping materials attached to the lower side of the bearing retainer 1 can fall off due to gravity, and the thickness of the plastic dipping layer 102 on the first clamping area 310 on the lower side of the bearing retainer 1 can be smaller than a set threshold value. In this embodiment, when the second clamping portion 32 clamps the bearing holder 1, the lower clamping plate of the first clamping portion 31 keeps a preset distance from the bearing holder 1, and in the process that the first clamping portion 31 drives the bearing holder 1 to leave the plastic dipping cavity, the lower clamping plate can support the plastic dipping material, so as to reduce the dropping of the plastic dipping material, thereby increasing the thickness of the plastic dipping layer 102 of the first clamping area 310, and enabling the thickness of the plastic dipping layer 102 of the first clamping area 310 to be not less than a set threshold value.

More specifically, the second clamping portion 32 is provided with a cooling solidification member 7. After the primary plastic dipping is finished, before the second clamping area 320 is clamped by the second clamping part 32, the cooling and solidifying piece 7 can enable the plastic dipping layer 102 of the second clamping area 320 to be firstly hardened to a certain degree compared with other areas of the bearing retainer 1, and when the second clamping part 32 is clamped, the deformation and the adhesion of the plastic dipping layer 102 can be reduced, and the second clamping area 320 of the second clamping area 320 is ensured to have enough thickness of the plastic dipping layer 102. In addition, once plastic dipping is completed, after the bearing retainer 1 leaves the plastic dipping cavity, the second clamping part 32 can move to a position corresponding to the second clamping area 320, and after the cooling curing part 7 arranged on the second clamping part 32 enables the plastic dipping layer 102 to be hardened to a certain degree, the second clamping part 32 can clamp the bearing retainer 1 to enter the plastic dipping cavity for secondary plastic dipping, so that the working time is saved, the excessive reduction of the temperature of the bearing retainer 1 due to the overlong retention time outside the plastic dipping cavity is prevented, and the bearing retainer 1 can be adhered with plastic dipping materials with enough thickness during secondary plastic dipping.

Further specifically, the second clamping portion 32 includes two clamping plates 3001 disposed oppositely, and the cooling solidifying member 7 includes a cooling pipeline 71 disposed in the clamping plate 3001 and a cooling power member connected to the cooling pipeline 71. The two clamping plates 3001 of the second clamping portion 32 are provided with cooling solidification members 7 capable of cooling the second clamping areas 320 on the upper side and the lower side of the bearing holder 1. The cooling power component can provide an air flow with a temperature lower than that of the bearing holder 1, and the air flow can enter the cooling pipeline 71 of the clamping plate 3001, so that the plastic-impregnated layer 102 of the second clamping area 320 is cooled.

It should be noted that the temperature of the wind flow is set to be higher than the room temperature and lower than the temperature of the bearing holder 1 itself, so that the plastic impregnated layer 102 of the second clamping area 320 can be hardened to a certain degree, and the plastic impregnated layer 102 of the second clamping area 320 can be prevented from being excessively hardened to crack the plastic impregnated layer 102. In addition, the invention does not limit the form of the cooling power part, for example, the cooling power part can adopt a hot air blower with temperature control.

More specifically, the clamping plate 3001 includes a heat-conducting plate 3002, and a heat-insulating plate 3003 surrounding the heat-conducting plate 3002, and the cooling pipe 71 is disposed on the heat-conducting plate 3002. The heat insulation plate 3003 can prevent the temperature of the heat conduction plate 3002 from being transferred to the adjacent region of the second clamping region 320, and prevent the plastic impregnated layer 102 of the adjacent region from being cooled to reduce the amount of plastic impregnated material adhered during the secondary plastic impregnation process when the clamping plate 3001 is clamped.

More specifically, the width of the clamping plate 3001 is greater than the thickness of the bearing retainer 1, and the cooling and solidifying member 7 further includes an air blowing port 3004 provided in the clamping plate 3001. The air flow in the cooling pipeline 71 can blow the second clamping area 320 through the air blowing port 3004, so that the plastic impregnated layer 102 of the second clamping area 320 is hardened to a certain extent.

More specifically, the heat conducting plate 3002 is connected to the lifting member 8, and the lifting member 8 drives the heat conducting plate 3002 to move up or down, wherein the lifting member 8 is disposed in the holding plate 3001. When the second clamping portion 32 moves to a position corresponding to the second clamping area 320, the heat conductive plate 3002 is in a raised state by the lifting member 8, the top surface of the heat conductive plate 3002 may be higher than the top surface of the heat insulation plate 3003, and the air flow blows the second clamping area 320 through the air blowing opening 3004. In the process of clamping by the second clamping portion 32, at the initial stage when the heat conducting plate 3002 contacts the plastic impregnated layer 102 of the second clamping area 320, the air flow still blows the second clamping area 320 through the air blowing port 3004, so that the plastic impregnated layer 102 is further cooled, and the pressure of the heat conducting plate 3002 on the plastic impregnated layer 102 is small, so that the deformation of the plastic impregnated layer 102 can be reduced; in the later stage that the layer 102 is moulded in soaking of heat-conducting plate 3002 contact second clamping area 320, it has hardened to a certain extent to mould layer 102 to soak, the top surface of heat-conducting plate 3002 can be followed and dropped to the top surface parallel and level with heat insulating board 3003, grip block 3001 is with the centre gripping of bearing holder 1, and heat insulating board 3003 surrounds heat-conducting plate 3002, prevent that the temperature of heat-conducting plate 3002 from transmitting the adjacent region of second clamping area 320, prevent that adjacent soaking moulds layer 102 by the cooling sclerosis, adjacent regional soaking when avoiding influencing the secondary and soaking moulds and mould the effect.

More specifically, the lifter 8 includes a spring. The spring has elasticity, and when the second clamping area 320 is cooled, the spring is in an extended state to raise the heat-conducting plate 3002, and when the second clamping portion 32 clamps, the spring is compressed by a pressure to lower the heat-conducting plate 3002, so that the heat-conducting plate 3002 is surrounded by the heat insulating plate 3003.

Further specifically speaking, when the grip block 3001 is provided with the mouth of blowing 3004, the cooling pipeline 71 is for setting up in the cooling wind channel of grip block 3001, and the cooling wind channel links to each other with the mouth of blowing 3004, and the cooling wind channel has the notch 711 towards the heat insulating part, and the heat insulating part forms the shutoff piece 3005 that inserts the notch 711, and when the heat-conducting plate 3002 descends to the top surface and the top surface parallel and level of heat insulating part, the shutoff piece 3005 stretches into the cooling wind channel and seals the cooling wind channel.

Clamping plate 3001 sets up the mouth of blowing 3004, and cooling pipeline 71 is for setting up in clamping plate 3001's cooling wind channel, and the cooling wind channel links to each other with the mouth of blowing 3004, and the cooling wind channel has the notch 711 towards heat insulating board 3003, and heat insulating board 3003 forms the shutoff piece 3005 that inserts notch 711, and when heat-conducting plate 3002 descends to the top surface parallel and level with heat insulating board 3003, shutoff piece 3005 stretched into the cooling wind channel and closed the cooling wind channel.

When the cooling curing member 7 cools the second clamping area 320, the top surface of the heat conducting plate 3002 is higher than the top surface of the heat insulating plate 3003, the blocking block 3005 opens the cooling air duct, and the air flow can be blown to the second clamping area 320 through the air blowing port 3004. Second clamping area 320 hardens to a certain extent after, this region of second clamping part 32 centre gripping, the spring is compressed, heat-conducting plate 3002 descends, cooling wind channel downstream simultaneously, and its notch 711 moves down along shutoff piece 3005, when heat-conducting plate 3002's top surface and heat insulating board 3003 top surface parallel and level, shutoff piece 3005 seals the cooling wind channel, the distinguished and admirable blockked block 3005 stops, mouth of blowing 3004 stops to blow, thereby when preventing the secondary plastic dipping, the distinguished and admirable material that falls that bearing holder 1 adnexed and lead to the plastic dipping inhomogeneous.

Method example 2

Aiming at thickening the plastic-impregnated layer 102 arranged in the thickened area 12 of the bearing retainer, the invention also provides another processing method of the bearing retainer, which comprises the following steps:

step 1, providing a plastic dipping pool with a plastic dipping cavity;

step 2, pre-treating the bearing retainer by plastic dipping;

step 3, vertically placing the bearing retainer to enable the lower edge of the bearing retainer to enter a plastic dipping pool for plastic dipping treatment;

step 4, rolling the bearing retainer;

step 5, after the bearing retainer rolls for a circle, turning the bearing retainer over 180 degrees, rolling the bearing retainer again, and performing secondary plastic dipping;

and 6, moving the bearing retainer out of the plastic dipping cavity.

In the rotation process of the bearing retainer, each arc-shaped part can be used as a lower edge to completely enter the plastic soaking cavity for plastic soaking, so that the bearing retainer can be evenly soaked in plastic in all directions.

More importantly, when the pocket 103 is rotated out of the plastic dipping cavity 11, the lower side wall of the pocket 103 naturally holds up part of plastic dipping materials, the plastic dipping materials are accumulated on the lower side wall of the pocket 103 to form a relatively thick plastic dipping layer 102, frequent rolling friction is carried out between the plastic dipping layers 102 at the position when the rolling body rolls, the relatively thick metal layer has better wear resistance, and the service life of the bearing retainer can be prolonged. After one-time rotation of the bearing retainer, the same side wall of each pocket 103 on the bearing retainer can gather part of the plastic-impregnated material to thicken the plastic-impregnated layer 102.

After the bearing retainer is turned over by 180 degrees, the bearing retainer rotates along the same direction as the first plastic dipping, so that the other side wall of the pocket 103 is also subjected to the same key independent plastic dipping, the sliding friction loss between the rolling body and the pocket 103 is further reduced, and the service life of the bearing retainer is prolonged.

Further, the plastic dipping pool is provided with an inlet side and an outlet side, the lower edge of the bearing retainer enters the plastic dipping pool from the inlet side, and the step 4 comprises the following steps:

step 4.1, after the bearing retainer rotates out of the plastic dipping cavity, powder is sprayed on the lower edge of a pocket 103 of the bearing retainer on the rotating-out side;

and 4.2, after powder is sprayed into the pockets 103, blowing hot air into the powder spraying area in the pockets 103, wherein the temperature of the hot air is lower than that of the bearing retainer.

In order to accomplish the present embodiment, the present invention further provides a plastic dipping device, specifically, as shown in fig. 12 to 19, the plastic dipping device includes a plastic dipping pool 2, the plastic dipping pool 2 encloses a plastic dipping cavity 11, and further includes a rotation driving assembly 9, the rotation driving assembly 9 includes a horizontal shaft 901 horizontally disposed on the upper side of the plastic dipping cavity 11, a fixing member 902 disposed on the horizontal shaft 901, and a driving member 903 for driving the horizontal shaft 901 to rotate, the fixing member 902 can fix the bearing holder 3, so that the axis of the bearing holder 3 is collinear with the axis of the horizontal shaft 901, and the lower edge of the bearing holder 3 extends into the plastic dipping cavity 11, so that the horizontal shaft 901 drives the lower edge of the bearing holder 3 to continuously enter and leave the plastic dipping cavity 11.

In the rotation process of the bearing retainer 3, each arc-shaped part can be used as a lower edge to completely enter the plastic dipping cavity 11 for plastic dipping, so that the bearing retainer 3 can be uniformly dipped in plastic in all directions.

More importantly, when the pocket 103 is rotated out of the plastic dipping cavity 11, the lower side wall of the pocket 103 naturally holds up part of plastic dipping materials, the plastic dipping materials are accumulated on the lower side wall of the pocket 103 to form a relatively thick plastic dipping layer 102, frequent rolling friction is carried out between the plastic dipping layers 102 at the position when the rolling body rolls, the relatively thick metal layer has better wear resistance, and the service life of the bearing retainer 3 can be prolonged. After the bearing retainer 3 is subjected to plastic dipping for one rotation, the same side wall of each pocket 103 on the bearing retainer 3 can gather part of the plastic dipping material to thicken the plastic dipping layer 102.

The plastic dipping pool 2 is provided with an inlet side 23 and a roll-out side 24, the lower edge of the bearing retainer 3 enters the plastic dipping pool 2 from the inlet side 23 and leaves the plastic dipping cavity 11 from the roll-out side 24; as shown in fig. 13, the plastic dipping device further includes a shaping adjusting structure 10, the shaping adjusting structure 10 includes a material spraying gun 1101 disposed at an upper section in the plastic dipping cavity 11, the material spraying gun 1101 is disposed at the roll-out side 24, and a material spraying direction of a material spraying port 1001 of the material spraying gun 1101 faces the pocket 103 of the bearing holder 3. The material spraying gun 1101 can spray plastics on the side wall of the pocket 103 to supplement plastic-impregnated materials, and when the pocket 103 runs to the roll-out side 24 position, the plastic-impregnated materials sprayed by the material spraying gun 1101 can cover the plastic-impregnated materials held up by the pocket 103 so as to enable the plastic impregnation to reach the expected thickness; when the pocket 103 moves to the roll-out side 24 and holds and adheres enough plastic dipping materials, the excess plastic dipping materials sprayed by the plastic spraying gun can be shaken and scattered by the rotation of the bearing retainer 3 to fall into the plastic dipping cavity 11, and even if the excess plastic dipping materials are adhered to the pocket 103, trimming, deburring and the like can be carried out through the finish machining processes such as post-polishing and the like.

The invention is further optimized in that the sizing adjustment structure 10 further comprises a detection switch 1002, when the pocket 103 of the bearing retainer 3 moves to a set position, the bearing retainer 3 triggers the detection switch 1002, and the detection switch 1002 controls the material spraying gun 1101 to spray material. According to the invention, through the matching of the detection switch 1002 and the material spraying gun 1101, the automatic action of spraying the material in each pocket 103 is realized, no missing or leaking of the material is ensured, the whole shaping and adjusting structure 10 is self-adaptive to spray the plastic, the labor is saved, and the efficiency is improved. In a preferred embodiment, as shown in fig. 13, the detection switch 1002 is provided above the spray gun 1101, and the detection switch 1002 is a proximity switch. The bearing retainer 3 in the drawing rotates anticlockwise, namely the right side of the bearing retainer 3 is the roll-out side 24, the pocket 103 is arranged in the front of the proximity switch sensing area at the moment, the bearing retainer 3 rotates anticlockwise, and the proximity switch control material spraying gun 1101 sprays the plastic dipping material at the moment when the pocket 103 is changed into the bearing retainer 3 body in the front of the proximity switch sensing area, and the plastic dipping material is just sprayed on the side wall of the roll-out side 24, wherein the pocket 103 is arranged relatively below the side wall. In this way, the material spray guns 1101 spray the same amount of plastic-impregnated material at the moment when each proximity switch sensing pocket 103 becomes a frame. In addition, the plastic spraying amount and the plastic spraying speed of the plastic spraying gun 1101 are controllable, and the proper plastic spraying amount and angle can be adjusted according to the using amount of plastic soaking materials in the plastic soaking pool 2 or the distance between the plastic spraying gun 1101 and the pocket 103.

The plastic dipping pool 2 is provided with an inlet side 23 and a rotating-out side 24, the lower edge of the bearing retainer 3 enters the plastic dipping pool 2 from the inlet side 23 and leaves the plastic dipping cavity 11 from the rotating-out side 24; the plastic dipping device further comprises a curing assembly 11, the curing assembly 11 is arranged above the roll-out side 24, and the curing assembly 11 comprises at least one temperature adjusting plate 1101 and an air outlet 11011 arranged on the temperature adjusting plate 1101. The temperature adjusting plate 1101 is used for controlling the temperature of the surrounding environment, and in the present invention, the temperature adjusting plate 1101 is used for adjusting the temperature of the environment above the roll-out side 24, so that the plastic impregnated material adhered to the pockets 103 rolled out from the roll-out side 24 can be formed into a stable shape relatively quickly. For example, the bearing holder 3 is preheated to 380 ℃ before plastic dipping, the curing molding temperature is generally set to about 200 ℃, the temperature of the bearing holder 3 is difficult to be reduced to 200 ℃ within ten seconds when the bearing holder is dipped in plastic in the dipping pool 2, and therefore, the temperature adjusting plate 1101 is arranged to control the ambient temperature. In a preferred embodiment, as shown in fig. 12, at least two temperature adjustment plates 1101 are provided in the radial rotation direction of the bearing holder 3. The temperature adjusted by upper temperature adjustment plate 1101 is lower than the temperature maintained by lower temperature adjustment plate 1101, for example, lower temperature adjustment plate 1101 maintains 220 degree centigrade, upper temperature adjustment plate 1101 maintains 200 degree centigrade, and a plurality of temperature adjustment plates 1101 form a stepped temperature interval, so that plastic impregnated layer 102 is not rapidly cooled and solidified, the problems of much burrs and cracking brought to plastic impregnated layer 102 by temperature shock are reduced as much as possible, and the purpose is to further solidify and shape plastic impregnated layer 102 by upper temperature adjustment plate 1101, and increase the stability of plastic impregnated layer 102.

The temperature adjustment plate 1101 is further optimized in that, as shown in fig. 14 and 15, the curing assembly 11 has an air duct 1102 connected to the air outlet 11011, a temperature sensor 1103, and a heating member 1104, and the air duct 1102 is connected to the air supply unit 1105. A technician can directly read the temperature of the wind in the wind tunnel 1102 from the temperature sensor 1103 so as to facilitate the technician in debugging the proper temperature; in this embodiment, the air supply unit 1105 supplies air to the air duct 1102, and then the air duct 1102 and the air outlet 11011 blow the air to the bearing holder 3, so as to accelerate the air flow near the bearing holder 3, thereby effectively accelerating the curing and shaping of the plastic-dipped material, omitting the cooling or water-soaking curing step in the traditional plastic-dipped process, and shortening the time of the whole plastic-dipped process.

In one embodiment of the present invention, the curing assembly 11 further comprises a proximity switch, when the pockets 103 of the bearing holder 3 move to the set position, the bearing holder 3 triggers the proximity switch, and the proximity switch controls the air supply unit 1105 to supply air. Similar with proximity switch control spray gun 1101 and spout the material, proximity switch controls the air feed unit 1105 air feed through responding to switching between pocket 103 and the support body in the twinkling of an eye in this mode, makes the air feed can directly blow fast on the lateral wall that the plastic is soaked to the pocket 103 thickening to accelerate the solidification design.

In one embodiment of the present invention, the curing assembly 11 has an air heating chamber 1106 connected to the air passageway 1102, a heating element 1104 is disposed in the air heating chamber 1106, and an air supply unit 1105 includes an electrically powered piston rod 1107 disposed in the air heating chamber 1106. The gas is heated in the air heating cavity 1106, is quickly pushed to the air duct 1102 by the electric piston rod 1107 and is blown to the bearing retainer 3 through the air duct 1102, so that the air heating and circulating efficiency is accelerated, and the stability of the whole temperature control is improved; in addition, heated air is temporarily stored in the air heating cavity 1106, when air needs to be fed, hot air is fed out by the electric piston rod 1107 in a linear mode, the temperature when the hot air is blown to the plastic impregnated layer 102 is guaranteed to be the temperature read by the temperature sensor 1103, the temperature is controlled accurately, and adverse effects on the plastic impregnated layer 102 caused by temperature reduction of the air in an air channel can be avoided.

The rotary driving assembly 9 further comprises a vertical shaft 904 connected to the horizontal shaft 901, and a turnover driving member 905 for driving the vertical shaft 904 to rotate. As shown in fig. 16, the plastic dipping device is provided with a bracket for supporting the rotary driving component 9, and the bracket jacks up the rotary driving component 9 through the air cylinder, so that the rotary driving component 9 lifts the bearing support frame out of the plastic dipping pool 2; the top of the vertical shaft 904 is connected with a motor, the motor drives the vertical shaft 904 to rotate 180 degrees in the horizontal plane direction, so as to drive the horizontal shaft 901 to rotate 180 degrees in the horizontal plane, that is, the bearing retainer 3 rotates 180 degrees in the horizontal plane, then the bearing retainer 3 is lowered to a plastic dipping state, the driving part 903 drives the horizontal shaft 901 to rotate, the horizontal shaft 901 drives the fixing part 902 to rotate, the fixing parts 902 on two sides of the bearing retainer 3 clamp the bearing retainer 3 in the middle, the fixing parts 902 clamp the bearing retainer 3 and still rotate in the same direction as the first plastic dipping, so that the other side wall of the pocket 103 is also subjected to the same key single plastic dipping, the sliding friction loss between the rolling body and the pocket 103 is further reduced, and the service life of the bearing retainer 3 is prolonged.

Further, as shown in fig. 17 and 18, a bearing retainer 3 includes a metal base 101 and a plastic-impregnated layer 102 covering a front side of the metal base 101, the metal base 101 has a pocket 103, and a thickness of the plastic-impregnated layer 102 at an inner edge of the pocket 103 is larger than thicknesses of other regions.

It should be noted that, in the drawings of the embodiments of the present application, in order to better illustrate the structure, some structures are omitted in some drawings, and only the key structures in the view of the drawings are illustrated, for example, in fig. 12, the curing assembly, the sizing adjustment mechanism, the injection molding chamber, the retainer and other mechanisms are illustrated, and the air cylinder connected to the turnover driving assembly is not depicted; in fig. 14, the curing assembly, the sizing adjustment mechanism, the infusion chamber and the holder are not depicted.

The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. A method for processing a bearing retainer is characterized by comprising the following steps:

step 2, pre-treating the bearing retainer by plastic dipping;

step 5, turning the bearing retainer 180 degrees, placing the bearing retainer downwards in a plastic dipping cavity, and carrying out secondary plastic dipping;

and 6, moving the bearing retainer out of the plastic dipping cavity.

2. The method of manufacturing a bearing holder according to claim 1, wherein the step 4 comprises:

3. A method of manufacturing a bearing retainer according to claim 1, wherein: the clamping assembly comprises a first clamping part and a second clamping part, and the first clamping part and the second clamping part clamp different positions of the bearing retainer;

the step 5 comprises the following steps:

4. The method of manufacturing a bearing holder according to claim 1,

the powder spraying device is arranged in the plastic spraying area and comprises a spray head, when the bearing retainer moves upwards to the plastic dipping area, the spray head can stretch into a pocket of the bearing retainer and spray plastic dipping powder to the inner edge of the pocket.

5. The method of manufacturing a bearing holder according to claim 4,

the powder spraying device further comprises a driving ring, a fixing table, a rotating device and a driving rod, one end of the driving rod is connected with the spray head, the driving ring is rotatably arranged on the upper side of the fixing table, the rotating device drives the driving ring to rotate, the driving ring is provided with a plurality of arc-shaped grooves at intervals along the circumferential direction of the driving ring, the fixing table is provided with a plurality of sliding grooves extending along the radial direction of the fixing table, the driving rod is slidably arranged in the sliding grooves, convex sliding blocks are fixedly arranged on the driving rod, the sliding blocks extend into the arc-shaped grooves, and the arc-shaped grooves can drive the sliding blocks when the driving ring rotates, so that the driving rod drives the spray head to extend into or withdraw from the pocket holes.

6. The method for processing a bearing retainer according to claim 4, wherein the powder spraying device further comprises a fixed table, a driving ring arranged on the upper side of the fixed table, a driving rod arranged to slide along the radial direction of the fixed table, a spring arranged between the driving rod and the fixed table, and a telescopic rod for driving the driving ring to move vertically;