A multifunctional bearing for industrial robot manufacturing

Abstract

The invention discloses a multifunctional bearing for manufacturing industrial robots, which relates to the field of industrial robot bearings, and includes an inner ring, wherein the inner ring is provided with a plurality of first fixing holes at equal intervals along the circumferential direction, and also includes a fixing ring, which is arranged on the side wall of the inner ring, and the fixing ring is rotatably connected with a lower outer ring, and a plurality of rollers are evenly and evenly installed on the lower outer ring along the circumferential direction, and the rollers are arranged along the outer periphery of the inner ring, and a symmetrically arranged insertion hole is opened on the top of the lower outer ring, and a symmetrically arranged insertion block is connected to a side of the upper outer ring close to the insertion block, and a symmetrically arranged clamping block is arranged on the insertion block. The invention drives a screw rod to rotate by a screwdriver, and the screw rod makes the lifting semicircular ring move downward, and then drives the elastic ring and the first rubber ring to move downward, and under the extrusion of the inner ring, the elastic ring and the first rubber ring are stretched open, so that the elastic ring and the first rubber ring block the gap between the inner ring and the upper outer ring, and dust can be prevented from entering the roller through the gap.

Description

Technical Field

[0001] The invention relates to the field of industrial robot bearings, and in particular to a multifunctional bearing for manufacturing industrial robots. Background Art

[0002] Industrial robots use bearings in many key parts. The functions of bearings include: reducing the friction between the rotating shaft and the fixed shaft, supporting the mechanical rotating body, maintaining the precise position of the rotating shaft, and improving the mechanical life. The bearings used in industrial robots are mostly crossed roller bearings. Crossed roller bearings consist of an inner ring, an outer ring, and rollers. A circle of rollers is arranged inside the outer ring, and the inner ring is arranged inside the circle of rollers. When the crossed roller bearing is installed on the industrial robot, the inner ring and the outer ring are connected to the rotating shaft and the fixed shaft respectively. During the operation of the industrial robot, the rotating shaft and the fixed shaft are The shaft drives the inner ring and the outer ring to rotate relative to each other. Lubricating oil is generally added to the crossed roller bearing. The lubricating oil is added to the rollers to maintain the crossed roller bearings. During the operation of the crossed roller bearings, there will be gaps between the inner ring and the outer ring, and the lubricating oil will easily flow out of the gaps. In addition, some dust and impurities will easily enter the rollers through the gaps. The dust will increase the friction between the rollers and the inner ring and the outer ring, and reduce the life of the crossed roller bearings. Therefore, a multifunctional bearing for industrial robot manufacturing is developed, which can not only prevent dust from entering the rollers, but also facilitate the inspection and maintenance of the rollers. Summary of the invention

[0003] The invention provides a multifunctional bearing for manufacturing industrial robots, which can not only prevent dust from entering the rollers but also facilitate the inspection and maintenance of the rollers, so as to overcome the disadvantage that dust easily enters the existing bearings, thus affecting the service life of the bearings.

[0004] The technical solution of the present invention is: a multifunctional bearing for manufacturing industrial robots, including an inner ring, the inner ring is provided with a plurality of first fixing holes at equal intervals along the circumferential direction, and also includes a fixing ring, the fixing ring is arranged on the side wall of the inner ring, a lower outer ring is rotatably connected to the fixing ring, a plurality of rollers are evenly installed on the lower outer ring along the circumferential direction, the rollers are arranged along the outer periphery of the inner ring, a symmetrically arranged insertion hole is opened on the top of the lower outer ring, the insertion hole is provided with a symmetrically arranged protruding shape, a symmetrically arranged insertion block is connected to a side of the upper outer ring close to the insertion block, the insertion block and the insertion hole are snap-fitted, and the insertion block is on the insertion block. A symmetrically arranged clamping block is provided, the clamping block is made of rubber material, the clamping block and the protruding shape of the insertion hole are snap-fitted, the upper outer ring and the lower outer ring are provided with a plurality of second fixing holes at equal intervals along the circumferential direction, the inner ring is slidably connected with a symmetrically arranged slider, the side of the slider away from each other is connected with a telescopic rod, an elastic ring is connected between the telescopic rods, a first rubber ring is connected to the bottom of the elastic ring, an inclined surface is provided on the side of the inner ring close to the elastic ring, the elastic ring and the inclined surface of the inner ring are squeezed together, the first rubber ring and the inclined surface of the inner ring are squeezed together, and the inner ring is provided with a driving component for driving the slider to move.

[0005] As a preferred technical solution of the present invention, the driving component includes a lifting semicircular ring, which is slidably connected to the inner ring, the lifting semicircular ring and the slider are fixed, and the inner ring is rotatably connected to a screw rod on one side close to the lifting semicircular ring, and the screw rod and the lifting semicircular ring are threadedly connected.

[0006] As a preferred technical solution of the present invention, a cross groove is provided on the top of the screw.

[0007] As a preferred technical solution of the present invention, the height of the screw is lower than the end surface of the inner ring, and the screw is hidden in the inner ring.

[0008] As a preferred technical solution of the present invention, it also includes a moving rod, which is slidably connected to the side of the telescopic rod that is away from each other, and a pressure ring is slidably connected to the side of the upper outer ring close to the moving rod, and a wedge-shaped surface is provided on the side of the pressure ring away from the moving rod, and a second rubber ring is installed in the upper outer ring, the second rubber ring and the wedge-shaped surface of the pressure ring are squeezed together, and the second rubber ring and the first rubber ring are squeezed together.

[0009] As a preferred technical solution of the present invention, it also includes a ball, which is rotatably connected to the side of the moving rod that is away from each other.

[0010] As a preferred technical solution of the present invention, it also includes a dust-proof mechanism that can prevent dust from entering, the dust-proof mechanism includes symmetrically arranged slide grooves, the symmetrically arranged slide grooves are respectively opened on the lower outer ring and the upper outer ring, after the lower outer ring and the upper outer ring are assembled, the slide grooves on the lower outer ring and the upper outer ring form symmetrical slide grooves, and the symmetrically arranged slide grooves are all slidably connected with moving blocks, and a clamping column is provided on the side where the moving blocks are close to each other, and the clamping column is made of elastic material. A protruding structure is provided on the slide groove of the upper outer ring, and the clamping column is clamped at the protruding structure position of the slide groove of the upper outer ring, and a lower protective shell is connected between the ends of the moving blocks that are away from each other, and the lower protective shell is located on the outer periphery of the lower outer ring and the upper outer ring, an annular groove is opened on the top of the lower protective shell, and a rubber clamping ring is connected to the bottom of the upper protective shell, and the rubber clamping ring and the annular groove are clamped together.

[0011] As a preferred technical solution of the present invention, the sliding groove on the lower outer ring is a non-closed structure on the side away from the upper outer ring.

[0012] As a preferred technical solution of the present invention, a lower circular hollow is provided in the lower protective shell, and the diameter of the lower circular hollow is consistent with the diameter of the fixed axis of the industrial robot. An upper circular hollow is provided in the upper protective shell, and the diameter of the upper circular hollow is consistent with the diameter of the rotating axis of the industrial robot.

[0013] As a preferred technical solution of the present invention, it also includes sealing rings, which are respectively arranged on the lower protective shell and the upper protective shell.

[0014] Beneficial effects of the present invention: The present invention drives the screw to rotate by a screwdriver, and the screw causes the lifting semicircular ring to move downward, thereby driving the elastic ring and the first rubber ring to move downward. Under the squeezing of the inner ring, the elastic ring and the first rubber ring are spread open, so that the elastic ring and the first rubber ring block the gap between the inner ring and the upper outer ring, thereby preventing dust from entering the roller through the gap.

[0015] When the telescopic rod moves downward, the movable rod and the ball will move downward. After the ball squeezes the pressure ring, the pressure ring will squeeze the second rubber ring inward, and the second rubber ring will fit tightly with the outer wall of the first rubber ring, so that the gap can be further blocked by the second rubber ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the multifunctional bearing body of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the inner ring, the fixed ring and the lower outer ring of the present invention.

[0019] Figure 4It is a schematic diagram of the three-dimensional structure of the first fixing hole, roller, lower outer ring and other components of the present invention.

[0020] Figure 5 It is a three-dimensional structural state diagram of the lower outer ring and the upper outer ring of the present invention in a separated state.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the elastic ring, the first rubber ring, the screw and other components of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the driving component of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of a part of the driving assembly of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the inner ring, the moving rod, the pressure ring and other components of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the moving rod and ball components of the present invention.

[0026] Fig.11 It is a schematic structural diagram of the upper outer ring and the second rubber ring component of the present invention.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the pressure ring and the second rubber ring in the separated state of the present invention.

[0028] Fig.13 It is a schematic diagram of the structure of the lower protective shell, the upper protective shell sealing ring and other components of the present invention.

[0029] Fig.14 It is a schematic diagram of the three-dimensional structure of the dustproof mechanism of the present invention.

[0030] Fig.15 It is a three-dimensional structural schematic diagram of the lower protective shell and the upper protective shell components in the separated state of the present invention.

[0031] Fig.16 It is a schematic diagram of the three-dimensional structure of the upper protective shell and the clamping column of the present invention.

[0032] Figure numbers: 1_inner ring, 103_fixing ring, 11_first fixing hole, 12_roller, 13_lower outer ring, 131_second fixing hole, 14_upper outer ring, 15_insertion hole, 16_insertion block, 17_clamping block, 2_elastic ring, 21_first rubber ring, 22_slider, 23_telescopic rod, 24_screw, 25_lifting semicircular ring, 3_moving rod, 31_ball, 32_pressure ring, 33_second rubber ring, 4_lower protective shell, 41_upper protective shell, 42_slide groove, 43_moving block, 44_sealing ring, 431_clamping column, 45_annular groove, 46_rubber clamping ring. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] Embodiment 1: A multifunctional bearing for manufacturing industrial robots, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, it includes an inner ring 1, a fixing ring 103, a roller 12, a lower outer ring 13, an upper outer ring 14, an insert block 16, a clamping block 17, an elastic ring 2, a first rubber ring 21, a slider 22, a telescopic rod 23 and a driving assembly. The inner ring 1 is provided with eight first fixing holes 11 at equal intervals along the circumferential direction. Bolts are respectively inserted between the eight first fixing holes 11 and the rotating shaft of the industrial robot, and then the nuts are rotated onto the bolts. The inner ring 1 and the rotating shaft of the industrial robot are fixed together by the bolts and nuts. A fixing ring 103 is welded on the outer side of the lower part of the inner ring 1. The fixing ring 103 is rotatably connected to the lower outer ring 13 on the outside. The inner ring 1 and the lower outer ring 13 are connected by a screw thread. The lower outer ring 13 is installed together with a fixing ring 103. A plurality of rollers 12 are evenly and evenly spaced along the circumferential direction on the upper part of the lower outer ring 13. The rollers 12 are arranged along the periphery of the inner ring 1. The existing inner ring 1 and outer ring of the bearing are generally in a separated state and need to be installed to form a whole. However, the lower outer ring 13 of the present invention is rotatably connected to the lower part of the inner ring 1 through the fixing ring 103. The lower outer ring 13 and the inner ring 1 are not in a separated state, which makes it more convenient to install the rollers 12. Moreover, a gap is reduced between the lower outer ring 13 and the lower part of the inner ring 1 to prevent dust from entering the rollers 12. Insertion holes 15 are opened on both sides of the top of the lower outer ring 13. The front of the insertion hole 15 The rear two sides are convex shapes, and the left and right sides of the bottom of the upper outer ring 14 are connected with plug blocks 16, and the plug blocks 16 and the insertion holes 15 are snap-fitted. Clamping blocks 17 are provided on the front and rear sides of the plug blocks 16, and the clamping blocks 17 are made of rubber. The clamping blocks 17 and the convex shapes on the front and rear sides of the insertion holes 15 are snap-fitted. The upper outer ring 14 is fixed to the upper part of the lower outer ring 13 through the plug blocks 16 and the clamping blocks 17. The upper outer ring 14 and the lower outer ring 13 are both provided with second fixing holes 131 at equal intervals along the circumferential direction. The bolts are respectively inserted between the eight second fixing holes 131 and the fixed axis of the industrial robot, and then the nuts are rotated onto the bolts. The upper outer ring 14 and the lower outer ring 13 are fixed together through the bolts and the nuts. The lower outer ring 13 is fixed to the fixed axis of the industrial robot respectively, and the left and right sides of the upper part of the inner ring 1 are slidably connected with sliders 22, and the sides of the sliders 22 that are away from each other are connected with telescopic rods 23, and an elastic ring 2 is installed between the telescopic rods 23. The elastic ring 2 structure is a closed circular ring, and the elastic ring 2 is tightly attached to the outer wall of the inner ring 1. The bottom of the elastic ring 2 is connected to the first rubber ring 21, and the upper part of the outer wall of the inner ring 1 is provided with an inclined surface, and the elastic ring 2 and the inclined surface of the inner ring 1 are squeezed and matched, and the first rubber ring 21 and the inclined surface of the inner ring 1 are squeezed and matched. A driving component is provided at the front of the inner ring 1, and people can conveniently drive the slider 22 to move downward or upward through the driving component.

[0035] like Figure 6 , Figure 7 and Figure 8As shown, the driving component includes a screw 24 and a lifting semicircular ring 25. The lifting semicircular ring 25 is slidably connected to the front part of the inner ring 1, the left side of the lifting semicircular ring 25 is fixedly connected to the slider 22 on the left part, and the right side of the lifting semicircular ring 25 is fixedly connected to the slider 22 on the right part. The inner ring 1 is rotatably connected to the side close to the lifting semicircular ring 25. The screw 24 and the lifting semicircular ring 25 are threadedly connected. A cross groove is opened on the top of the screw 24. A screwdriver is inserted into the cross groove. By rotating the screwdriver, the screw 24 can be easily driven to rotate so as to drive the lifting semicircular ring 25 to be lifted and lowered. The upper end of the screw 24 is lower than the upper end surface of the inner ring 1, and the screw 24 is hidden in the inner ring 1. The purpose of this arrangement is that the screw 24 will not affect the installation of the inner ring 1 and the rotating axis of the industrial robot together.

[0036] The reason for setting the inclined surface on the outer wall of the inner ring 1 is that when the upper outer ring 14 and the lower outer ring 13 are installed together, the upper outer ring 14 is moved downward from the top of the lower outer ring 13, and the upper outer ring 14 will pass through the elastic ring 2 and the first rubber ring 21. In the process of the upper outer ring 14 passing through the elastic ring 2 and the first rubber ring 21, since the elastic ring 2 and the first rubber ring 21 are in a state of being in contact with the inclined surface of the outer wall of the inner ring 1, and the elastic ring 2 and the first rubber ring 21 are not stretched apart by the inner ring 1, at this time, the elastic ring 2 and the first rubber ring 21 are in a state of being in contact with the inclined surface of the outer wall of the inner ring 1. The circular area formed by the elastic ring 21 is smaller than the hollow area inside the upper outer ring 14. In this way, when the upper outer ring 14 passes through the elastic ring 2 and the first rubber ring 21, the elastic ring 2 and the first rubber ring 21 will not block the upper outer ring 14. When the upper outer ring 14 is installed, it will not be blocked by the elastic ring 2 and the first rubber ring 21. Later, when the elastic ring 2 and the first rubber ring 21 are needed to move down to block the gap between the upper outer ring 14 and the inner ring 1, the elastic ring 2 and the first rubber ring 21 will be stretched apart by the inner ring 1, so that it is convenient to block the gap.

[0037] The reason why the outer ring of the present invention is arranged as an upper outer ring 14 and a lower outer ring 13 is that: the upper outer ring 14 and the lower outer ring 13 are arranged separately, and when the bearing has problems such as jamming and needs to be repaired, the upper outer ring 14 can be directly opened upwards, and the roller 12 is exposed to the outside, which is convenient for maintenance. When the existing bearing is repaired, the outer ring needs to be completely disassembled before maintenance. When the outer ring is completely disassembled, the roller 12 falls out directly without the support of the outer ring. In this way, it needs to be reinstalled after maintenance, which is very troublesome.

[0038] When assembling the multifunctional bearing for manufacturing industrial robots, first install the roller 12 to the upper part of the lower outer ring 13. After installation, insert the insert block 16 of the upper outer ring 14 into the insertion hole 15, and the clamping block 17 is also clamped into the insertion hole 15, so that the upper outer ring 14 and the lower outer ring 13 can be installed together. Then, a screwdriver can be used to insert it into the cross slot, and then the screwdriver is turned to drive the screw 24 to rotate. The rotation of the screw 24 will drive the lifting semicircular ring 25 to move downward, and the lifting semicircular ring 25 moves downward to drive the slider 22 to move downward. The downward movement of the slider 22 will drive the telescopic rod 23 to move downward, and the telescopic rod 23 drives the elastic ring 2 and the first rubber ring 21 to move downward. The elastic ring 2 and the first rubber ring 21 move downward along the inclined surface of the upper part of the inner ring 1. When the elastic ring 2 and the first rubber ring 21 are separated from the inclined surface respectively, the inner ring 1 will squeeze the elastic ring 2 and the first rubber ring 21 outward, so that the elastic ring 2 and the first rubber ring 21 are The expansion rod 23 is stretched, so that the area of ​​the elastic ring 2 after being expanded is slightly larger than the hollow area of ​​the upper outer ring 14. In this way, after the elastic ring 2 and the first rubber ring 21 move downward, the first rubber ring 21 can be inserted into the gap between the inner ring 1 and the upper outer ring 14, and the elastic ring 2 blocks the gap between the inner ring 1 and the upper outer ring 14, so that dust can be prevented from entering the roller 12 through the gap. If the bearing needs to be disassembled later, the screw 24 can be driven to reverse by a screwdriver first, and the reverse rotation of the screw 24 will drive the lifting semicircular ring 25 to move upward, and the lifting semicircular ring 25 drives the slider 22 and the telescopic rod 23 to move upward and reset, and the telescopic rod 23 drives the elastic ring 2 and the first rubber ring 21 to move upward and reset. When the elastic ring 2 and the first rubber ring 21 move to the inclined position, the elastic ring 2 and the first rubber ring 21 will shrink and reset due to their own elasticity, and also drive the telescopic rod 23 to shrink and reset, and then the upper outer ring 14 can be pulled out upward.

[0039] Embodiment 2: Based on embodiment 1, Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, it also includes a moving rod 3, a pressure ring 32 and a second rubber ring 33. The moving rod 3 is slidably connected to the inner side of the telescopic rod 23 away from each other. The upper part of the upper outer ring 14 is slidably connected to the pressure ring 32. The pressure ring 32 has a circular ring structure, and a wedge-shaped surface is provided at the lower part of the pressure ring 32. The second rubber ring 33 is installed in the upper outer ring 14. The second rubber ring 33 can be taken out from the upper outer ring 14, and a new one can be inserted into the upper outer ring 14. The upper part of the second rubber ring 33 and the wedge-shaped surface of the pressure ring 32 are squeezed and matched, and the second rubber ring 33 and the first rubber ring 21 are squeezed and matched.

[0040] like Fig.10As shown, it also includes a ball 31. The ball 31 is rotatably connected to the lower side of the moving rod 3 that is away from each other. The ball 31 can reduce the friction between the moving rod 3 and the pressure ring 32, avoiding wear on the top of the pressure ring 32 due to friction.

[0041] In order to enhance the sealing performance, a second rubber ring 33 is provided. After the upper outer ring 14 is installed on the upper part of the lower outer ring 13, people can first manually pull the two movable rods 3 to the side away from each other, driving the ball 31 to move to the top of the pressure ring 32. Then, when the telescopic rod 23 moves downward, the movable rod 3 and the ball 31 will be driven to move downward. When the ball 31 contacts the top of the pressure ring 32, the pressure ring 32 will be squeezed downward, and the pressure ring 32 will squeeze the second rubber ring 33 inward through the wedge surface, so that the inner side surface of the second rubber ring 33 will be tightly fitted with the outer wall of the first rubber ring 21, and the gap can be further blocked by the second rubber ring 33, which can enhance the sealing function. Then, when the telescopic rod 23 moves upward to reset, it will drive the movable rod 3 and the ball 31 to move upward to reset. When the ball 31 separates from the top of the pressure ring 32, the pressure ring 32 stops squeezing the second rubber ring 33.

[0042] like Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, a dustproof mechanism capable of preventing dust from entering is also included, the dustproof mechanism includes a lower protective shell 4, an upper protective shell 41, a moving block 43, a clamping column 431 and a rubber clamping ring 46, and a slide groove 42 is opened on the left and right sides of the lower outer ring 13 and the upper outer ring 14. After the lower outer ring 13 and the upper outer ring 14 are assembled, the slide grooves on the lower outer ring 13 and the upper outer ring 14 form two left-right symmetrical slide grooves 42, and the moving blocks 43 are slidably connected to the slide grooves 42 arranged symmetrically on the left and right. The lower part of the slide groove 42 on the outer ring 13 is a non-enclosed structure, so the moving block 43 can move downward out of the slide groove 42, and a clamping column 431 is provided above the side where the moving blocks 43 are close to each other. The clamping column 431 is made of elastic material, and a protruding structure is provided above the slide groove 42 of the upper outer ring 14. The clamping column 431 is clamped at the protruding structure position above the slide groove 42 of the upper outer ring 14. The lower protective shell 4 is connected between the ends of the moving blocks 43 that are away from each other, and the lower protective shell 4 is located at the lower outer ring 1 3 and the outer periphery of the upper outer ring 14, a lower circular hollow is provided in the lower inner part of the lower protective shell 4, and the diameter of the lower circular hollow is consistent with the diameter of the fixed shaft of the industrial robot. When the fixed shaft and the outer ring of the industrial robot are installed together, the fixed shaft of the industrial robot passes upward from the lower circular hollow into the interior of the lower protective shell 4, and the outer wall of the fixed shaft of the industrial robot fits tightly with the lower inner part of the lower protective shell 4 to prevent dust from entering the bearing. An annular groove 45 is opened on the top of the lower protective shell 4, and a rubber clamping ring 46 is connected to the bottom of the upper protective shell 41, and the rubber clamping ring 46 and the annular groove 45 are snap-fitted. An upper circular hollow is provided in the upper inner part of the upper protective shell 41, and the diameter of the upper circular hollow is consistent with the diameter of the rotating shaft of the industrial robot. When the rotating shaft and the inner ring 1 of the industrial robot are installed together, the rotating shaft of the industrial robot passes downward from the upper circular hollow into the interior of the upper protective shell 41, and the outer wall of the rotating shaft of the industrial robot fits tightly with the upper inner part of the upper protective shell 41 to prevent dust from entering the bearing.

[0043] After the multifunctional bearing is assembled, if a dustproof mechanism needs to be installed, the lower protective shell 4 can be first put on the outer wall of the fixed shaft of the industrial robot, and the upper protective shell 41 can be put on the outer wall of the rotating shaft of the industrial robot. Then, the inner ring 1 and the rotating shaft of the industrial robot are fixed together by bolts and nuts, and the upper outer ring 14 and the lower outer ring 13 are respectively fixed to the fixed shaft of the industrial robot by bolts and nuts. In this way, the multifunctional bearing can be installed on the industrial robot, and then the dustproof mechanism can be installed. People can manually move the lower protective shell 4 upward from the bottom of the lower outer ring 13 to move the moving blocks 43 on the left and right sides of the lower protective shell 4 into the slide groove. 42, and at the same time, the moving block 43 drives the clamping column 431 to move into the protruding structure position above the slide groove 42. Through the clamping cooperation between the clamping column 431 and the protruding structure above the slide groove 42, the lower protective shell 4 can be installed on the outside of the upper outer ring 14 and the lower outer ring 13. After that, the rubber clamping ring 46 of the upper protective shell 41 is clamped into the annular clamping groove 45 above the lower protective shell 4. In this way, the upper protective shell 41 and the lower protective shell 4 can be assembled together. Through the protection of the upper protective shell 41 and the lower protective shell 4, dust can be prevented from entering the multi-functional bearing. If the dustproof mechanism needs to be removed, the upper protective shell 41 can be pulled out upwards and the lower protective shell 4 can be pulled out downwards.

[0044] like Fig.14 and Fig.15 As shown, a sealing ring 44 is also included. A sealing ring 44 is provided on the inner side of the lower part of the lower protective shell 4, and a sealing ring 44 is also provided on the inner side of the upper part of the upper protective shell 41. The lower sealing ring 44 is sleeved on the outer wall of the fixed shaft of the industrial robot, and the upper sealing ring 44 is sleeved on the outer wall of the rotating shaft of the industrial robot. The sealing ring 44 can further prevent dust from entering.

[0045] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A multifunctional bearing for manufacturing industrial robots, comprising an inner ring (1), the inner ring (1) having a plurality of first fixing holes (11) at equal intervals along the circumferential direction, characterized in that: The device also includes a fixing ring (103), the fixing ring (103) being arranged on the side wall of the inner ring (1), the fixing ring (103) being rotatably connected to a lower outer ring (13), a plurality of rollers (12) being evenly and evenly installed on the lower outer ring (13) along the circumferential direction, the rollers (12) being arranged along the periphery of the inner ring (1), a symmetrically arranged insertion hole (15) being opened on the top of the lower outer ring (13), the insertion hole (15) being provided with a symmetrically arranged protruding shape, an insertion block (16) being connected to both left and right sides of the bottom of the upper outer ring (14), the insertion block (16) and the insertion hole (15) being snap-fitted, a symmetrically arranged clamping block (17) being arranged on the insertion block (16), the clamping block (17) being made of rubber, the clamping block (17) The inner ring (1) is slidably connected to a symmetrically arranged slider (22), and the sliders (22) are connected to telescopic rods (23) on the sides away from each other. The telescopic rods (23) are connected to elastic rings (2), and the bottom of the elastic rings (2) is connected to a first rubber ring (21). The inner ring (1) is provided with an inclined surface on the side close to the elastic ring (2), and the elastic ring (2) and the inclined surface of the inner ring (1) are pressed and fitted, and the first rubber ring (21) and the inclined surface of the inner ring (1) are pressed and fitted, and the inner ring (1) is provided with a driving component for driving the slider (22) to move. The driving component comprises a lifting semicircular ring (25), the lifting semicircular ring (25) is slidably connected to the inner ring (1), the lifting semicircular ring (25) and the slider (22) are fixedly connected, and a screw rod (24) is rotatably connected to a side of the inner ring (1) close to the lifting semicircular ring (25), and the screw rod (24) and the lifting semicircular ring (25) are threadedly connected.

2. A multifunctional bearing for industrial robot manufacturing as claimed in claim 1, characterized in that: The top of the screw rod (24) is provided with a cross groove.

3. A multifunctional bearing for industrial robot manufacturing as claimed in claim 2, characterized in that: The height of the screw rod (24) is lower than the end surface of the inner ring (1), and the screw rod (24) is hidden in the inner ring (1).

4. A multifunctional bearing for industrial robot manufacturing as claimed in claim 3, characterized in that: The invention also comprises a moving rod (3), the moving rod (3) being slidably connected to the side of the telescopic rod (23) away from each other, a pressure ring (32) being slidably connected to the side of the upper outer ring (14) close to the moving rod (3), a wedge-shaped surface being provided on the side of the pressure ring (32) away from the moving rod (3), a second rubber ring (33) being installed in the upper outer ring (14), the second rubber ring (33) and the wedge-shaped surface of the pressure ring (32) being pressed and fitted, and the second rubber ring (33) and the first rubber ring (21) being pressed and fitted.

5. A multifunctional bearing for industrial robot manufacturing as claimed in claim 4, characterized in that: It also includes a ball (31) which is rotatably connected to the side of the moving rod (3) that is away from each other.

6. A multifunctional bearing for industrial robot manufacturing as claimed in claim 5, characterized in that: The dustproof mechanism is also provided to prevent dust from entering. The dustproof mechanism includes symmetrically arranged slide grooves (42). The symmetrically arranged slide grooves (42) are respectively provided on the lower outer ring (13) and the upper outer ring (14). After the lower outer ring (13) and the upper outer ring (14) are assembled, the slide grooves on the lower outer ring (13) and the upper outer ring (14) form symmetrical slide grooves (42). The symmetrically arranged slide grooves (42) are both slidably connected with moving blocks (43). A clamping column (431) is provided on one side of the moving blocks (43) close to each other. The clamping column (431) ) is made of elastic material, a protruding structure is provided on the slide groove (42) of the upper outer ring (14), a clamping column (431) is clamped at the protruding structure position of the slide groove (42) of the upper outer ring (14), a lower protective shell (4) is connected between the ends of the movable blocks (43) that are away from each other, the lower protective shell (4) is located outside the lower outer ring (13) and the upper outer ring (14), an annular clamping groove (45) is opened on the top of the lower protective shell (4), and a rubber clamping ring (46) is connected to the bottom of the upper protective shell (41), and the rubber clamping ring (46) and the annular clamping groove (45) are clamped together.

7. A multifunctional bearing for industrial robot manufacturing as claimed in claim 6, characterized in that: The side of the slide groove (42) on the lower outer ring (13) away from the upper outer ring (14) is a non-enclosed structure.

8. A multifunctional bearing for industrial robot manufacturing as claimed in claim 7, characterized in that: A lower circular hollow is provided in the lower protective shell (4), and the diameter of the lower circular hollow is consistent with the diameter of the fixed shaft of the industrial robot. An upper circular hollow is provided in the upper protective shell (41), and the diameter of the upper circular hollow is consistent with the diameter of the rotating shaft of the industrial robot.

9. A multifunctional bearing for industrial robot manufacturing as claimed in claim 8, characterized in that: It also includes a sealing ring (44), which is respectively arranged on the lower protective shell (4) and the upper protective shell (41).

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