Bearing for industrial robot

Abstract

The invention is suitable for the technical field of industrial robot bearings, and provides a bearing for an industrial robot, the bearing comprises an inner bearing assembly and an outer bearing assembly, the inner bearing assembly is sleeved and matched with the outer part of the outer bearing assembly, and a ball body is in rolling fit between the inner bearing assembly and the outer bearing assembly; and the outer bearing assembly comprises an outer bearing part, an oil storage part clamped and matched in the outer bearing part, a cover body part clamped and matched on the outer bearing part, and an extrusion part clamped and matched in the outer bearing part. The problems that under the condition that an existing bearing for the industrial robot is installed and used, lubricating agents need to be added to the whole bearing for the industrial robot through other external tools, intermittent adding of the lubricating agents cannot be synchronously conducted in the using process, and consequently the lubricating agents cannot be added synchronously in the adding process of the lubricating agents are solved. And an excessive phenomenon is caused.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial robot bearings, and more specifically, to a bearing for an industrial robot. Background Art

[0002] Bearings for industrial robots are an important component of industrial robots; their main function is to support the rotating body of the industrial robot, reduce the friction coefficient during its movement, and ensure its rotation accuracy. There are many types of bearings, such as: sliding bearings, spherical bearings, rolling bearings, deep groove ball bearings, angular contact ball bearings, self-aligning ball bearings, thrust ball bearings, needle roller bearings and combined bearings.

[0003] At present, during the production and processing of industrial robot bearings on the market, since the inner and outer rings of the bearings are mostly integral ring structures, they often have the following technical problems in the later use process:

[0004] That is, when existing industrial robot bearings are installed and used, lubricants are often added to the entire industrial robot bearings through other external tools. It is impossible to add lubricants intermittently during use, resulting in excessive lubricant addition. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an industrial robot bearing that can realize an intermittent discharging process throughout the entire process, thereby avoiding the addition of lubricant to the industrial bearings for robots through other external tools during later use, and preventing the phenomenon of excessive lubricant addition during the lubricant addition process, thereby bringing certain conveniences to the staff.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A bearing for an industrial robot comprises an inner bearing assembly and an outer bearing assembly sleeved and fitted outside the inner bearing assembly, wherein a ball spherical body is rollingly fitted between the inner bearing assembly and the outer bearing assembly.

[0008] The outer bearing assembly comprises an outer bearing component, an oil storage component snap-fitted inside the outer bearing component, a cover component snap-fitted on the outer bearing component, and an extrusion component snap-fitted inside the outer bearing component.

[0009] The inner bearing assembly includes an inner bearing race.

[0010] The outer bearing member comprises a bearing outer ring, a downwardly extending annular cavity is formed on the top of the bearing outer ring, a plurality of groups of oil outlet grooves distributed in a circumferential array are formed through the inner wall of the bearing outer ring, and a sliding rod extending inward is formed through the inner wall of the bearing outer ring for reciprocating sliding cooperation.

[0011] The oil storage member comprises an annular oil-absorbing cotton which is snap-fitted in the annular cavity.

[0012] The extrusion member includes a plurality of rectangular columns distributed in a circular array and snap-fitted inside an annular cavity, a side plate is fixed on one side of the plurality of rectangular columns, two symmetrical positioning rings are fixed between the plurality of rectangular columns, arc-shaped rotating plates are hingedly fitted on opposite sides of the rectangular columns, a T-extrusion plate is fixed on the outer wall of the arc-shaped rotating plate near one end face, and an arc spring is fixed between the arc-shaped rotating plate and the side plate.

[0013] The present invention is further configured as follows: the number of the oil outlet grooves in each group is two, and the oil outlet grooves in each group are symmetrically distributed up and down.

[0014] One end face of the sliding rod is located outside the annular cavity and is set in a dome shape. The other end face of the sliding rod is located inside the annular cavity and is fixed with an arc-shaped pressure plate. A return spring is fixed between the arc-shaped pressure plate and the annular cavity and is sleeved and fitted on the peripheral side of the sliding rod.

[0015] The present invention is further configured as follows: a plurality of U-shaped vertical plates are fixed in a circular array at the inner bottom of the annular cavity away from the inner wall of the arc-shaped pressure plate.

[0016] Two symmetrical L-shaped plug-in rods are fixed on the peripheral side surfaces of the plurality of sliding rods, and two plug-in grooves respectively plugged and matched with the two L-shaped plug-in rods are formed through one side of the U-shaped vertical plate.

[0017] The present invention is further configured as follows: a vertical baffle is fixed on one side of the bottom of the annular cavity away from each group of the oil outlet grooves, a rectangular connecting column is fixed between the vertical baffle and the annular cavity, a sliding plate is slidably fitted with the peripheral side of the rectangular connecting column, a plurality of dredging rods slidably fitted inside the oil outlet grooves are fixed on one side of the sliding plate, and an elastic spring sleeved on the rectangular connecting column is fixed between the sliding plate and the vertical baffle.

[0018] Two symmetrical L-shaped laminating plates are fixed on the inner wall of the arc-shaped pressing plate, and the inner wall of the L-shaped laminating plate is in contact with one side of the vertical baffle.

[0019] The present invention is further configured as follows: a plurality of internally threaded cylinders distributed in a circumferential array are fixed inside the annular cavity.

[0020] A plurality of plug-in circular holes are formed through the top of the annular oil-absorbing cotton, and the plug-in circular holes are plug-matched with the internal threaded tube.

[0021] The cover body comprises a sealing plate which is snap-fitted in the annular cavity, and a plurality of fixing holes are provided in a circumferential array on the top of the sealing plate, and the fixing holes are fixedly connected to the internal threaded cylinder by bolts.

[0022] The present invention is further configured as follows: an annular fitting plate is fixed to the inner wall of the annular cavity near the top, and a plurality of arc-shaped slots are formed through the top of the annular fitting plate.

[0023] A plurality of arc-shaped clamping plates are fixed on the bottom of the cover plate in a circumferential array, and the arc-shaped clamping plates are clamped and matched with the arc-shaped clamping grooves.

[0024] The present invention is further configured as follows: a plurality of U-shaped plates distributed in a circumferential array are fixed to the inner bottom of the annular cavity, and the U-shaped plates are plug-fitted with the rectangular columns.

[0025] The bottom of the cover plate is located inside a plurality of arc-shaped clamping plates, and a plurality of arc-surface U-shaped clamping plates are fixed in a circumferential array. The plurality of arc-surface U-shaped clamping plates are clamped and matched with a positioning ring.

[0026] The present invention is further configured as follows: the outer wall of the inner ring of the bearing is provided with a first groove matched with the ball body, and the inner wall of the inner ring of the bearing is provided with a positioning claw groove.

[0027] The inner wall of the bearing outer ring is provided with a second groove matched with the ball body.

[0028] The advantages of the present invention are:

[0029] 1. The present invention enables a plurality of sliding rods to repeatedly move back and forth inside the annular cavity and repeatedly and intermittently reciprocate with and separate from the inner wall of the arc-shaped rotating plate, combined with the elastic force of the arc spring fixedly connected between the arc-shaped rotating plate and the side plate, so that the T-extrusion plate fixed near one end face of the outer wall of the arc-shaped rotating plate synchronously moves back and forth, thereby repeatedly squeezing the annular oil-absorbing cotton in the oil storage part snap-fitted inside the outer bearing part, so that the lubricant absorbed and stored inside the annular oil-absorbing cotton is repeatedly squeezed out, realizing an intermittent discharging process in the whole process, avoiding the addition of lubricant to the industrial bearing for robots through other external tools during later use, and preventing the phenomenon of excessive addition of lubricant during the process of adding lubricant, which brings certain convenience to the staff.

[0030] 2. The present invention drives a plurality of dredging rods fixed on one side of the sliding plate to slide reciprocatingly in the oil outlet groove through the mutual fitting action between the L-shaped fitting plate and the vertical baffle plate and the elastic force of the elastic spring fixedly connected between the vertical baffle plate and the sliding plate. In this way, during the intermittent extrusion and discharge of the lubricant, the inner wall of the oil outlet groove is synchronously dredged and guided reciprocatingly to prevent the inside of the oil outlet groove from being blocked by the solidified lubricant exposed to the air during long-term use, thereby increasing the lubrication effect of the entire industrial robot bearing during use and improving the service life of the industrial robot bearing.

[0031] 3. During the use of the present invention, the two L-shaped plug-in rods fixed on the peripheral side of the sliding rod respectively slide with the two plug-in grooves penetrated by one side of the U-shaped vertical plate, so that when the sliding rod slides toward the inside of the annular cavity, the sliding process of the sliding rod can be limited by the adhesion between the two L-shaped plug-in rods and the U-shaped vertical plate, thereby avoiding the sliding rod from detaching due to excessive sliding spacing during the reciprocating sliding of the sliding rod, thereby preventing it from affecting the subsequent intermittent oil discharge and dredging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The figure is a schematic structural diagram of a bearing for an industrial robot according to the present invention.

[0033] Figure 2 It is a schematic structural diagram of the inner bearing assembly of the present invention.

[0034] Figure 3 It is a schematic structural diagram of the outer bearing assembly of the present invention.

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the outer bearing assembly of the present invention.

[0036] Figure 5 It is a schematic structural diagram of the outer bearing component of the present invention.

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of the outer bearing component of the present invention.

[0038] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0039] Figure 8 For the present invention Figure 6 Top view of the .

[0040] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at point B in the middle.

[0041] Fig.10It is a schematic structural diagram of the oil storage component of the present invention.

[0042] Fig.11 It is a schematic diagram of the structure of the cover body of the present invention from a bottom-up perspective.

[0043] Fig.12 It is a schematic diagram of the structure of the cover body of the present invention from a top view.

[0044] Fig.13 It is a schematic diagram of the structure of the extrusion part of the present invention.

[0045] In the figure: 1, inner bearing assembly; 2, outer bearing assembly; 3, ball ball; 4, outer bearing member; 5, oil storage member; 6, cover member; 7, extrusion member; 101, bearing inner ring; 102, first groove; 103, positioning claw groove; 401, bearing outer ring; 402, annular cavity; 403, sliding rod; 404, arc pressure plate; 405, reset spring; 406, U-shaped vertical plate; 407, L-shaped plug rod; 408, vertical baffle; 409, rectangular connecting column; 410, sliding plate; 411, dredging rod; 4 12. Elastic spring; 413. L-shaped fitting plate; 414. Internally threaded cylinder; 415. Oil outlet groove; 416. Annular fitting plate; 417. Arc-shaped groove; 418. U-shaped plate; 419. Second groove; 501. Annular oil-absorbing cotton; 502. Inserting circular hole; 601. Covering plate; 602. Fixing hole; 603. Arc-shaped clamping plate; 604. Arc-surface U-shaped clamping plate; 701. Rectangular column; 702. Side plate; 703. Positioning ring; 704. Arc-shaped rotating plate; 705. T-extrusion plate; 706. Arc-shaped spring. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0048] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0049] For example, see Figure 1-13 , the present invention provides the following technical solutions:

[0050] A bearing for an industrial robot, specifically, comprises an inner bearing assembly 1 and an outer bearing assembly 2 sleeved and fitted on the outside of the inner bearing assembly 1, wherein a ball 3 is rollingly fitted between the inner bearing assembly 1 and the outer bearing assembly 2; the outer bearing assembly 2 comprises an outer bearing part 4, an oil storage part 5 snap-fitted inside the outer bearing part 4, a cover part 6 snap-fitted on the outer bearing part 4, and an extrusion part 7 snap-fitted inside the outer bearing part 4; the inner bearing assembly 1 comprises a bearing inner ring 101; the outer bearing part 4 comprises a bearing outer ring 401, a downwardly extending annular cavity 402 is provided on the top of the bearing outer ring 401, and a plurality of groups of oil outlets distributed in a circumferential array are provided through the inner wall of the bearing outer ring 401 Groove 415, the inner wall of the bearing outer ring 401 passes through a sliding rod 403 extending inwardly for reciprocating sliding engagement; the oil storage member 5 includes an annular oil-absorbing cotton 501 snap-fitted into the annular cavity 402; the extrusion member 7 includes a plurality of rectangular columns 701 snap-fitted into the annular cavity 402 and distributed in a circular array, a side plate 702 is fixed to one side of the plurality of rectangular columns 701, two symmetrical positioning rings 703 are fixed between the plurality of rectangular columns 701, arc-shaped rotating plates 704 are hingedly engaged on opposite sides of the rectangular columns 701, a T-shaped extrusion plate 705 is fixed to the outer wall of the arc-shaped rotating plate 704 near one end face, and an arc spring 706 is fixed between the arc-shaped rotating plate 704 and the side plate 702.

[0051] The specific application of this embodiment 1 is:

[0052] Before the bearing for industrial robot is assembled and used, the annular oil-absorbing cotton 501 that is snap-fitted into the annular cavity 402 can absorb and store the lubricant before use, so as to facilitate the intermittent discharging process at a later time. During use, the ball 3 that is rollingly matched between the inner bearing assembly 1 and the outer bearing assembly 2 rolls and squeezes the inner wall of the bearing outer ring 401 in a reciprocating circumferential manner, thereby driving the plurality of sliding rods 403 to reciprocate on the inner wall of the bearing outer ring 401 in turn, so that the structure provided at the ends of the plurality of sliding rods 403 located inside the annular cavity 402 repeatedly reciprocates inside the annular cavity 402, and then intermittently reciprocates with the inner wall of the arc-shaped rotating plate 704, thereby combining with the arc-shaped rotating plate 704 fixedly connected to the side plate 702. The elastic force of the arc spring 706 causes the T-extrusion plate 705 fixed on the outer wall of the arc rotating plate 704 near one end face to move reciprocating synchronously, thereby repeatedly squeezing the annular oil-absorbing cotton 501 in the oil storage part 5 that is snap-fitted inside the outer bearing part 4, so that the lubricant stored in the annular oil-absorbing cotton 501 is repeatedly squeezed out and finally discharged through a plurality of groups of oil outlet grooves 415 distributed in a circular array and opened through the inner wall of the bearing outer ring 401, so as to fall between the ball spheres 3 rollingly fitted between the inner bearing assembly 1 and the outer bearing assembly 2, thereby realizing an intermittent discharging process in the whole process, avoiding the addition of lubricant to the industrial bearings for robots through other external tools during its later use, and preventing the phenomenon of excessive lubricant addition during the lubricant addition process, which brings certain convenience to the staff.

[0053] For example 2, please refer to Figure 1-13, the second embodiment makes the following improvements on the basis of the first embodiment. Specifically, the number of each group of oil outlet grooves 415 is two, and each group of oil outlet grooves 415 is symmetrically distributed up and down; one end face of the sliding rod 403 is located outside the annular cavity 402 and is arranged in a dome shape, and the sliding rod 403 is located inside the annular cavity 402 relative to the other end face thereof, and an arc-shaped pressing plate 404 is fixed thereto, and a return spring 405 which is sleeved and fitted on the side surface of the sliding rod 403 is fixed between the arc-shaped pressing plate 404 and the annular cavity 402; a plurality of U-shaped vertical plates 406 are fixed in a circular array at the bottom of the annular cavity 402 away from the inner wall of the arc-shaped pressing plate 404; two symmetrical L-shaped plug-in rods 407 are fixed to the side surfaces of the plurality of sliding rods 403, and the U-shaped vertical plates 406 are fixed to the sides thereof. Two plug-in grooves are provided on the side of the annular cavity 402, which are respectively plugged with two L-shaped plug-in rods 407; a vertical baffle 408 is fixed on the side of the bottom of the annular cavity 402 away from each group of oil outlet grooves 415, a rectangular connecting column 409 is fixed between the vertical baffle 408 and the annular cavity 402, a sliding plate 410 is slidably engaged with the side surface of the rectangular connecting column 409, a plurality of dredging rods 411 slidably engaged inside the oil outlet groove 415 are fixed on one side of the sliding plate 410, and an elastic spring 412 sleeved on the rectangular connecting column 409 is fixed between the sliding plate 410 and the vertical baffle 408; two symmetrical L-shaped fitting plates 413 are fixed to the inner wall of the arc pressure plate 404, and the inner wall of the L-shaped fitting plate 413 fits with one side of the vertical baffle 408.

[0054] The specific application of this second embodiment is:

[0055] When the lubricating oil stored in the annular cavity 402 is intermittently squeezed out and flows out from the inside of the plurality of oil outlet grooves 415, the sliding fit of the sliding rod 403 on the bearing outer ring 401 drives the sliding rod 403 to synchronously perform linear motion in the annular cavity 402 relative to the arc-shaped pressure plate 404 fixed inside the annular cavity 402 at the other end face thereof. When the sliding rod 403 synchronously performs linear motion in the annular cavity 402 relative to the arc-shaped pressure plate 404 fixed inside the annular cavity 402 at the other end face thereof, combined with the elastic reciprocating force of the return spring 405 fixedly connected between the arc-shaped pressure plate 404 and the annular cavity 402, the sliding rod 403 can perform linear motion reciprocatingly in the annular cavity 402. When the sliding rod 403 reciprocates and performs linear motion inside the annular cavity 402, the mutual fitting action between the L-shaped fitting plate 413 and the vertical baffle plate 408 and the elastic force of the elastic spring 412 fixedly connected between the vertical baffle plate 408 and the sliding plate 410 drive a plurality of dredging rods 411 fixed on one side of the sliding plate 410 to reciprocate and slide in the oil outlet groove 415, so that during the intermittent extrusion and discharge of the lubricant, the inner wall of the oil outlet groove 415 is synchronously dredged and guided to reciprocate, so as to prevent the inside of the oil outlet groove 415 from being blocked by the lubricant solidified in the air when used for a long time, thereby increasing the lubrication effect of the entire industrial robot bearing during use and improving the service life of the industrial robot bearing;

[0056] In addition, during the reciprocating sliding process of the sliding rod 403, the two L-shaped plug-in rods 407 fixed on the side surface of the sliding rod 403 respectively slide with the two plug-in grooves penetrated by one side of the U-shaped vertical plate 406, so that during the sliding process of the sliding rod 403 sliding toward the inside of the annular cavity 402, the sliding process of the sliding rod 403 can be limited by the adhesion between the two L-shaped plug-in rods 407 and the U-shaped vertical plate 406 (the L-shaped plug-in rod 407 and the U-shaped vertical plate 406). 6 is equal to the distance that the sliding rod 403 slides toward the inside of the annular cavity 402. When the L-shaped plug-in rod 407 and the U-shaped vertical plate 406 are fitted, the round top of the sliding rod 403 is flush with the inner wall of the bearing outer ring 401, but the sliding rod 403 does not separate from the bearing outer ring 401, so as to avoid the sliding rod 403 being separated due to excessive sliding spacing during the reciprocating sliding process, thereby preventing it from affecting the intermittent oil discharge and dredging process in the later stage.

[0057] For example 3, please refer to Figure 1-13, the third embodiment is improved on the basis of the first embodiment as follows. Specifically, a plurality of internal threaded cylinders 414 distributed in a circular array are fixed inside the annular cavity 402; a plurality of plug-in circular holes 502 are opened through the top of the annular oil-absorbing cotton 501, and the plug-in circular holes 502 are plugged and matched with the internal threaded cylinder 414; the cover member 6 includes a sealing plate 601 snap-fitted inside the annular cavity 402, and a plurality of fixing holes 602 are opened in a circular array on the top of the sealing plate 601, and the fixing holes 602 are fixedly connected with the internal threaded cylinder 414 by bolts; an annular fitting plate 416 is fixed near the top of the inner wall of the annular cavity 402, and a plurality of arc-shaped slots 417 are opened through the top of the annular fitting plate 416; the sealing plate 601 A plurality of arc-shaped clamping plates 603 are fixed in a circular array at the bottom, and the arc-shaped clamping plates 603 are snap-fitted with the arc-shaped clamping grooves 417; a plurality of U-shaped plates 418 are fixed in a circular array at the bottom of the annular cavity 402, and the U-shaped plates 418 are plug-fitted with the rectangular column 701; the bottom of the cover plate 601 is located inside the plurality of arc-shaped clamping plates 603, and a plurality of arc-surface U-shaped clamping plates 604 are fixed in a circular array, and the plurality of arc-surface U-shaped clamping plates 604 are snap-fitted with a positioning ring 703; a first groove 102 adapted to the ball body 3 is provided on the outer wall of the bearing inner ring 101, and a positioning claw groove 103 is provided on the inner wall of the bearing inner ring 101; a second groove 419 adapted to the ball body 3 is provided on the inner wall of the bearing outer ring 401.

[0058] The specific application of this embodiment 3 is:

[0059] Before using the bearing, firstly, the plug-in circular hole 502 penetrated through the top of the annular oil-absorbing cotton 501 is plugged into the inner threaded tube 414, and then the entire extrusion 7 is preliminarily slidably plugged and positioned through the plug-in sliding fit between the U-shaped plate 418 and the rectangular column 701, so that the entire extrusion 7 can be movably connected to the inside of the annular cavity 402, so as to facilitate the detachable installation and replacement of the entire extrusion 7 later;

[0060] After the above-mentioned installation assembly is completed, a sealing gasket is placed at the bottom of the cover plate 601, and then the arc-shaped clamping plate 603 and the arc-surface U-shaped clamping plate 604 fixed at the bottom of the cover plate 601 are respectively engaged with the arc-shaped clamping groove 417 and a positioning ring 703 in sequence, so that the cover plate 601 is engaged with the inside of the annular cavity 402 until the bottom of the cover plate 601 is attached to the top of the annular attachment plate 416, and finally the bolts are sequentially connected with the threads between the fixing hole 602 and the internal threaded tube 414 to seal the top of the annular cavity 402, so that the entire cover body 6 can be detachably connected and fixed to the outer ring 401 of the bearing, which is convenient for the continuous addition of lubricant in the later stage, thereby increasing the service life of the bearing for the entire industrial robot;

[0061] When the entire industrial bearing is in use, the plurality of ball bodies 3 roll and cooperate between the first groove 102 and the second groove 419 to sequentially squeeze the plurality of sliding rods 403 that slide on the outer ring 401 of the bearing, thereby providing an intermittent reciprocating squeezing force for the plurality of sliding rods 403 that slide on the outer ring 401 of the bearing, thereby realizing the intermittent extrusion and discharge process of the lubricant in the later use process, replacing other external tools for adding lubricant to the industrial bearings for robots, and bringing certain convenience to the staff.

[0062] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0064] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0066] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A bearing for an industrial robot, characterized in that: It comprises an inner bearing component (1) and an outer bearing component (2) sleeved and fitted outside the inner bearing component (1), wherein a ball body (3) is rollingly fitted between the inner bearing component (1) and the outer bearing component (2); The outer bearing assembly (2) comprises an outer bearing member (4), an oil storage member (5) snap-fitted inside the outer bearing member (4), a cover member (6) snap-fitted on the outer bearing member (4), and an extrusion member (7) snap-fitted inside the outer bearing member (4); The inner bearing assembly (1) comprises a bearing inner ring (101); The outer bearing member (4) comprises a bearing outer ring (401), a downwardly extending annular cavity (402) is formed on the top of the bearing outer ring (401), a plurality of groups of oil outlet grooves (415) distributed in a circumferential array are formed through the inner wall of the bearing outer ring (401), and a sliding rod (403) extending inwards is formed through the inner wall of the bearing outer ring (401) for reciprocating sliding engagement; The oil storage member (5) comprises an annular oil-absorbing cotton (501) snap-fitted inside the annular cavity (402); The extrusion member (7) comprises a plurality of rectangular columns (701) which are arranged in a circular array and are snap-fitted inside the annular cavity (402); a side plate (702) is fixed on one side of the plurality of rectangular columns (701); two symmetrical positioning rings (703) are fixed between the plurality of rectangular columns (701); arc-shaped rotating plates (704) are hingedly fitted on opposite sides of the rectangular columns (701); a T-shaped extrusion plate (705) is fixed on the outer wall of the arc-shaped rotating plate (704) near one end face; and an arc-shaped spring (706) is fixed between the arc-shaped rotating plate (704) and the side plate (702).

2. The bearing for an industrial robot according to claim 1, characterized in that: The number of the oil outlet grooves (415) in each group is two, and the oil outlet grooves (415) in each group are symmetrically distributed up and down; One end face of the sliding rod (403) is located outside the annular cavity (402) and is arranged in a dome shape. The other end face of the sliding rod (403) is located inside the annular cavity (402) and is fixed with an arc-shaped pressing plate (404). A return spring (405) is fixed between the arc-shaped pressing plate (404) and the annular cavity (402) and is sleeved and fitted on the peripheral side of the sliding rod (403).

3. The bearing for an industrial robot according to claim 2, characterized in that: A plurality of U-shaped vertical plates (406) are fixed in a circular array on the inner bottom of the annular cavity (402) away from the inner wall of the arc-shaped pressing plate (404); Two symmetrical L-shaped plug-in rods (407) are fixed on the peripheral side surfaces of the plurality of sliding rods (403), and two plug-in grooves respectively plugged with the two L-shaped plug-in rods (407) are formed through one side of the U-shaped vertical plate (406).

4. The bearing for an industrial robot according to claim 3, characterized in that: A vertical baffle (408) is fixed to the bottom of the annular cavity (402) on one side away from each group of the oil outlet grooves (415); a rectangular connecting column (409) is fixed between the vertical baffle (408) and the annular cavity (402); a sliding plate (410) is slidably engaged with the peripheral side of the rectangular connecting column (409); a plurality of dredging rods (411) slidably engaged with the inside of the oil outlet grooves (415) are fixed to one side of the sliding plate (410); an elastic spring (412) sleeved and engaged with the rectangular connecting column (409) is fixed between the sliding plate (410) and the vertical baffle (408); Two symmetrical L-shaped bonding plates (413) are fixed to the inner wall of the arc-shaped pressing plate (404), and the inner wall of the L-shaped bonding plate (413) is bonded to one side of the vertical baffle (408).

5. The bearing for an industrial robot according to claim 4, characterized in that: A plurality of internally threaded cylinders (414) distributed in a circumferential array are fixed inside the annular cavity (402); A plurality of plug-in circular holes (502) are formed through the top of the annular oil-absorbing cotton (501), and the plug-in circular holes (502) are plug-fitted with the internal threaded cylinder (414); The cover member (6) comprises a cover plate (601) snap-fitted into the annular cavity (402), a plurality of fixing holes (602) are provided in a circular array on the top of the cover plate (601), and the fixing holes (602) are fixedly connected to the internal threaded cylinder (414) by bolts.

6. The bearing for an industrial robot according to claim 5, characterized in that: An annular bonding plate (416) is fixed near the top of the inner wall of the annular cavity (402), and a plurality of arc-shaped slots (417) are formed through the top of the annular bonding plate (416); A plurality of arc-shaped clamping plates (603) are fixed in a circular array at the bottom of the cover plate (601), and the arc-shaped clamping plates (603) are clamped and matched with the arc-shaped clamping grooves (417).

7. The bearing for an industrial robot according to claim 6, characterized in that: A plurality of U-shaped plates (418) distributed in a circumferential array are fixed to the bottom of the annular cavity (402), and the U-shaped plates (418) are plug-fitted with the rectangular columns (701); The bottom of the cover plate (601) is located inside a plurality of arc-shaped clamping plates (603) and a plurality of arc-surface U-shaped clamping plates (604) are fixed in a circular array. The plurality of arc-surface U-shaped clamping plates (604) are clamped and matched with a positioning ring (703).

8. The bearing for an industrial robot according to claim 7, characterized in that: The outer wall of the bearing inner ring (101) is provided with a first groove (102) adapted to the ball body (3), and the inner wall of the bearing inner ring (101) is provided with a positioning claw groove (103); The inner wall of the bearing outer ring (401) is provided with a second groove (419) adapted to the ball body (3).

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