A surface grinding device for bearing processing and manufacturing

Abstract

The present invention discloses a surface grinding device for bearing processing and manufacturing in the field of bearing processing technology, comprising a base, wherein the base is fixedly connected to a top plate via a supporting column; a mounting plate is arranged below the top plate, and a linear driving mechanism for driving the mounting plate to move is arranged on the top plate; grinding tables are rotatably mounted on the base and the mounting plate; grinding mechanisms are arranged on the grinding tables; the two grinding mechanisms are respectively used for grinding the inner and outer rings of the bearing; a first driving mechanism for driving the grinding mechanism to work is also arranged on the grinding table; the present invention can greatly improve the grinding efficiency of the bearing.

Description

Technical Field

[0001] The invention relates to the technical field of bearing processing, in particular to a surface grinding device for bearing processing and manufacturing. Background Art

[0002] Bearings are mechanical parts that fix and reduce the load friction coefficient during mechanical transmission. Bearings are composed of bearing inner rings, bearing outer rings and balls. In the actual production process, the bearing inner rings, bearing outer rings and balls are manufactured separately, and then assembled into a complete support. The inner and outer surfaces of the bearing inner rings and outer rings need to be polished during production. Currently, manual hand-held polishing equipment is usually used to polish the inner and outer surfaces of the bearing inner and outer rings. Since the surface accuracy requirements of the bearing inner and outer rings in contact with the balls are high, and the manual polishing force is not well controlled, the uneven polishing force, local over-polishing or insufficient polishing will greatly reduce the production and processing efficiency and quality of the bearings.

[0003] Based on this, the present invention designs a surface grinding device for bearing processing and manufacturing to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a surface grinding device for bearing processing and manufacturing to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surface grinding device for bearing processing and manufacturing, comprising a base, the base is fixedly connected to a top plate through a support column; a mounting plate is arranged below the top plate, and a linear driving mechanism for driving the mounting plate to move is arranged on the top plate; grinding tables are rotatably mounted on the base and the mounting plate; grinding mechanisms are arranged on the grinding tables; the two grinding mechanisms are respectively used for grinding the inner and outer rings of the bearing; and a first driving mechanism for driving the grinding mechanism to work is also arranged on the grinding table.

[0006] As a further solution of the present invention, the grinding mechanism includes a grinding roller, and a plurality of the grinding rollers are provided, and the plurality of the grinding rollers are distributed in a circular array, and sliders are installed on the grinding rollers, and the sliders are slidably connected to the grinding table; and linear motors are provided on the sides of the sliders for driving the sliders to move.

[0007] As a further solution of the present invention, the grinding roller consists of a roller body, a clamping plate and a pressure plate; a plurality of first clamping grooves are provided on the roller body; the clamping plate is elastically and slidingly connected to the roller body; a plurality of clamping plates are provided, and the number of the clamping plates is equal to the number of the first clamping grooves; the plurality of clamping plates correspond to the first clamping grooves respectively; a wedge-shaped limit block is elastically and slidably installed on the clamping plate, and the pressure plate is located above the wedge-shaped limit block and is used to drive the wedge-shaped limit block to move.

[0008] As a further solution of the present invention, a second card slot is provided on the card plate, and the second card slot is used for inserting the protrusion.

[0009] As a further solution of the present invention, the grinding roller is rotatably connected to the slider, and a first sprocket is fixedly connected to the rotating shaft of the grinding roller. A tensioning wheel is arranged on the side of the first sprocket, and the tensioning wheel and multiple first sprockets are connected through a first chain transmission.

[0010] As a further solution of the present invention, a second sprocket is provided on the side of the first sprocket, and the second sprocket is connected to the first chain transmission; an incomplete gear is fixedly connected to the rotating shaft of the first sprocket, and the incomplete gear is meshed with a rack rod, the rack rod is elastically slidably connected to the grinding table, the rack rod is hinged with a first connecting rod, and the first connecting rod is hinged with a rotating wheel at one end away from the rack rod, the connection point between the first connecting rod and the rotating wheel is located at a non-center position on the rotating wheel, the rotating wheel is rotatably connected to the grinding table, and the first rotating shaft is fixedly connected to the rotating shaft of the rotating wheel.

[0011] As a further solution of the present invention, the first driving mechanism includes a first pulley, which is fixedly mounted on the grinding table and coaxially arranged with the turntable, a one-way bearing is fixedly connected to the inner wall of the first pulley, and the bottom end of the rotating shaft of the turntable is fixedly connected to the inner circumferential wall of the one-way bearing; the first pulley is connected to the second pulley through a transmission belt, and a servo motor for driving the second pulley to rotate is arranged on the side.

[0012] As a further solution of the present invention, a support block is slidably connected to the top of the lower grinding table, and a reset spring for its reset is fixedly connected to the support block; a pressure rod is arranged directly above the support block, and the pressure rod is fixedly installed on the upper grinding table.

[0013] As a further solution of the present invention, the linear drive mechanism includes a cylinder, a fixed end of the cylinder is connected to the top plate, and a free end of the cylinder is fixedly connected to the mounting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention arranges two groups of grinding mechanisms, which can respectively grind the inner and outer side walls of the bearing outer ring, and the two grinding mechanisms alternately perform clamping and grinding work. During the grinding process, the axial position of the bearing outer ring remains unchanged, and the distance between the grinding roller and the bearing outer ring (i.e., the grinding force) also remains unchanged, so that the bearing outer ring can be more evenly ground during grinding, and the production grinding quality of the bearing outer ring can be better guaranteed. The grinding mechanism can also be applicable to the grinding work of the bearing inner ring, and has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a left side schematic diagram of the overall structure of the present invention;

[0018] Figure 3 It is a schematic cross-sectional view of the grinding roller structure of the present invention;

[0019] Figure 4 It is a partial structural schematic diagram of the present invention;

[0020] Figure 5 It is a schematic diagram of the incomplete gear structure of the present invention.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] Base 1, support column 2, top plate 3, mounting plate 4, grinding table 5, grinding roller 6, roller body 61, clamping plate 62, pressure plate 63, first clamping groove 64, wedge-shaped limit block 65, second clamping groove 66, protrusion 67, slider 7, first sprocket 8, tensioning wheel 9, first chain 10, second sprocket 11, incomplete gear 12, rack rod 13, first connecting rod 14, rotating wheel 15, first rotating shaft 16, first pulley 17, one-way bearing 18, transmission belt 19, second pulley 20, servo motor 21, support block 22, pressure rod 23, cylinder 24. DETAILED DESCRIPTION

[0023] With reference to the accompanying drawings, preferred embodiments of the present invention are described in order to fully understand the present invention. The embodiments of the present invention can be changed into various forms, and the scope of the present invention is not limited to the embodiments described in detail below. The present embodiment is provided in order to more completely explain the present invention to those of ordinary skill in the technical field to which the present invention belongs. Therefore, in order to further emphasize the clear description, the shapes of the elements in the drawings, etc. may be enlarged and shown. In each of the drawings, the same reference numerals are given to the same parts. The detailed description of the known functions and structures that are judged to be likely to make the main purpose of the present invention unclear will be omitted.

[0024] See also Figure 1-5 The present invention provides a technical solution: a surface grinding device for bearing processing and manufacturing, comprising a base 1, the base 1 is fixedly connected to a top plate 3 through a support column 2; a mounting plate 4 is arranged below the top plate 3, and a linear driving mechanism for driving the mounting plate 4 to move is arranged on the top plate 3; a grinding table 5 is rotatably mounted on both the base 1 and the mounting plate 4; a grinding mechanism is arranged on each of the grinding tables 5; the two grinding mechanisms are respectively used for grinding the inner and outer rings of the bearing; the grinding table 5 is also provided with a first driving mechanism for driving the grinding mechanism to work.

[0025] The grinding mechanism includes a grinding roller 6, and a plurality of the grinding rollers 6 are provided, and the plurality of grinding rollers 6 are distributed in a circular array. Slide blocks 7 are installed on the grinding rollers 6, and the slide blocks 7 are slidably connected to the grinding table 5; linear motors are provided on the sides of the slide blocks 7 for driving the movement thereof.

[0026] When working, Figure 1-Figure 2 As shown, the staff places the outer ring of the bearing to be polished in the middle of the lower polishing table 5, and then the linear motor on the side of the lower slider 7 drives the slider 7 to move toward the side close to the outer ring of the bearing; Figure 1 As shown, in this embodiment, three grinding rollers 6 are provided, and the linear motor drives the three sliders 7 to drive the grinding rollers 6 to move toward the side close to the outer ring of the bearing respectively; until the three grinding rollers 6 clamp the outer ring of the bearing between them; then the linear drive mechanism drives the mounting plate 4 to move downward, and the mounting plate 4 drives the upper grinding table 5 to move downward synchronously until the upper grinding roller 6 moves to the inner side of the outer ring of the bearing; then the upper linear motor drives the upper slider 7 to move outward again, until the grinding roller 6 on the inner side of the outer ring of the bearing moves to The inner wall of the outer ring of the bearing is in contact with the inner wall of the outer ring of the bearing; at this time, the lower grinding roller 6 clamps the outer ring of the bearing, and then the lower first driving mechanism is driven, the first driving mechanism will drive the lower grinding table 5 to rotate, and the lower grinding table 5 will drive the outer ring of the bearing to rotate synchronously through the grinding roller 6; during the rotation of the outer ring of the bearing, the inner grinding roller 6 will grind its inner wall; after the grinding of the inner wall of the outer ring of the bearing is completed, the inner grinding roller 6 clamps the outer ring of the bearing in the rotating working state, and then the outer grinding roller 6 slightly loosens the outer ring of the bearing according to the grinding force, Then the first driving mechanism above drives the upper grinding table 5 and grinding roller 6 to rotate, at this time the upper grinding roller 6 will drive the outer ring of the bearing to rotate, and the lower grinding roller 6 starts to grind the outer wall of the outer ring of the bearing; after the grinding is completed, the linear motor drives the slider 7 and the grinding roller 6 to move and release the outer ring of the bearing and return to the initial position; then the linear driving mechanism drives the mounting plate 4 to drive the upper grinding table 5 and the grinding roller 6 to move upward back to the initial position; the staff can remove the outer ring of the bearing after grinding from the grinding table 5; the present invention is provided with two groups of grinding mechanisms, the two groups of grinding mechanisms can grind the inner and outer walls of the outer ring of the bearing respectively, and the two grinding mechanisms alternately clamp and grind. During the grinding process, the axial position of the outer ring of the bearing remains unchanged, and the distance between the grinding roller 6 and the outer ring of the bearing (i.e., the grinding force) also remains unchanged, which can make the outer ring of the bearing more uniform during grinding, and can better ensure the production grinding quality of the outer ring of the bearing. The grinding mechanism can also be applied to the grinding work of the inner ring of the bearing, and has high applicability.

[0027] As a further solution of the present invention, the grinding roller 6 is composed of a roller body 61, a clamping plate 62 and a pressure plate 63; a plurality of first clamping grooves 64 are provided on the roller body 61; the clamping plate 62 is elastically and slidably connected to the roller body 61; a plurality of clamping plates 62 are provided, and the number of the clamping plates 62 is equal to the number of the first clamping grooves 64; the plurality of clamping plates 62 correspond to the first clamping grooves 64 respectively; a wedge-shaped limit block 65 is elastically and slidably installed on the clamping plate 62, and the pressure plate 63 is located above the wedge-shaped limit block 65 and is used to drive the wedge-shaped limit block 65 to move.

[0028] When working, Figure 3 As shown, four first card slots 64 are provided, and each of the four first card slots 64 is provided with a card plate 62, and the card plate 62 is used to install sandpaper for grinding. When in use, the sandpaper is covered on the surface of the card plate 62, and then the card plate 62 is inserted into the first card slot 64. When the card plate 62 is inserted, the wedge-shaped limit block 65 is inserted synchronously. After the wedge-shaped limit block 65 contacts the inner side wall of the roller body 61, it moves downward and compresses the spring. When the card plate 62 moves to Figure 3 When the sandpaper is in the position shown, the card plate 62 is perfectly inserted into the first card slot 64, and the card plate 62 will be limited by the wedge-shaped limit block 65, so that the sandpaper can work stably; three of the card plates 62 are used to install coarse sandpaper, fine sandpaper and fine sandpaper respectively, and the other card plate 62 is made of rubber material, and the rubber card plate 62 is only used when clamping the outer ring of the bearing; after the outer ring of the bearing is coarsely ground, it can be finely ground by rotating the grinding roller 6, and then finely ground after fine grinding. The outer ring of the bearing can be directly ground to different degrees, which can greatly improve the grinding efficiency of the outer ring of the bearing; when the sandpaper needs to be replaced, just press the pressure plate 63 downward, and the pressure plate 63 will drive the wedge-shaped limit block 65 to move downward to cancel the limit on the card plate 62, and then the card plate 62 will automatically pop out from the first card slot 64, making it more convenient and quick for the staff to replace the sandpaper.

[0029] As a further solution of the present invention, a second card slot 66 is formed on the card plate 62 , and the second card slot 66 is used for inserting the protrusion 67 .

[0030] When working, Figure 3 As shown, since the grooves of the inner and outer rings of the bearing are respectively on the outside and the inside; when grinding the outer ring of the bearing, the protrusion 67 is inserted into the upper clamping plate 62, and when grinding the inner ring of the bearing, the protrusion 67 is inserted into the lower clamping plate 62. By arranging the protrusion 67 in the second clamping groove 66, the protrusion 67 can be matched with the groove of the inner or outer ring of the bearing, so that the inner and outer rings of the bearing can be better ground. At the same time, since the shapes of the grooves of the inner and outer rings of bearings of different models are also different, the staff can change the shape of the protrusion 67 according to the bearings of different signals, so that the grinding device can be suitable for grinding bearings of different models.

[0031] As a further solution of the present invention, the grinding roller 6 is rotatably connected to the slider 7, and a first sprocket 8 is fixedly connected to the rotating shaft of the grinding roller 6. A tensioning wheel 9 is arranged on the side of the first sprocket 8, and the tensioning wheel 9 and multiple first sprockets 8 are connected through a first chain 10.

[0032] When working, Figure 4 As shown, through the arrangement of the first sprocket 8, the tensioning wheel 9 and the first chain 10, when it is necessary to rotate the grinding roller 6 to change the fineness of the grinding sandpaper, by rotating one of the grinding rollers 6, the other grinding rollers 6 can be driven to rotate together, which can greatly improve the grinding efficiency.

[0033] As a further solution of the present invention, a second sprocket 11 is arranged on the side of the first sprocket 8, and the second sprocket 11 is transmission connected to the first chain 10; an incomplete gear 12 is fixedly connected to the rotating shaft of the first sprocket 8, and the incomplete gear 12 is meshed with a rack rod 13, and the rack rod 13 is elastically slidably connected to the grinding table 5, and the rack rod 13 is hinged with a first connecting rod 14, and the first connecting rod 14 is hinged with a rotating wheel 15 at one end away from the rack rod 13, and the connection point between the first connecting rod 14 and the rotating wheel 15 is located at a non-center position on the rotating wheel 15, the rotating wheel 15 is rotationally connected to the grinding table 5, and the rotating shaft of the rotating wheel 15 is fixedly connected with a first rotating shaft 16.

[0034] When working, Figure 1-5As shown, it should be noted that when the upper grinding table 5 drives the grinding roller 6 to move downward to the grinding position, the upper first rotating shaft 16 and the lower first rotating shaft 16 are docked and can rotate synchronously; when the upper grinding roller 6 is grinding, the lower first driving mechanism drives the grinding table 5 and the grinding roller 6 to drive the outer ring of the bearing to rotate, and the first driving mechanism will drive the rotating wheel 15 and the first rotating shaft 16 to rotate synchronously. At this time, the lower first rotating shaft 16 will drive the upper first rotating shaft 16 to rotate, and the upper first rotating shaft 16 will drive the rotating wheel 15 to rotate but will not drive the upper grinding table 5 to rotate; at this time, the upper rotating wheel 15 will drive the upper rack rod 13 to reciprocate in the horizontal direction through the first connecting rod 14, and the rack rod 1 The reciprocating movement will drive the incomplete gear 12 to swing, and the incomplete gear 12 will drive the first sprocket 8 to swing synchronously through the second sprocket 11 and the first chain 10; the effect on the grinding roller 6 is that the grinding roller 6 rotates back and forth within a certain angle. The back and forth rotation of the grinding roller 6 can not only make the grinding sandpaper better contact with the outer ring of the bearing for grinding, but also make the debris fall by swinging, which can greatly reduce the impact of the debris on the grinding and improve the grinding quality; when the lower grinding roller 6 is grinding, the upper first driving mechanism drives the grinding table 5 and the grinding roller 6 to drive the outer ring of the bearing to rotate, and at this time, the upper first rotating shaft 16 drives the lower first rotating shaft 16 and the rotating wheel 16 to rotate independently, and at this time, the lower grinding roller 6 swings back and forth.

[0035] As a further solution of the present invention, the first driving mechanism includes a first pulley 17, which is fixedly mounted on the grinding table 5 and coaxially arranged with the turntable. A one-way bearing 18 is fixedly connected to the inner wall of the first pulley 17, and the bottom end of the rotating shaft of the rotating wheel 15 is fixedly connected to the inner circumferential wall of the one-way bearing 18; the first pulley 17 is connected to the second pulley 20 through a transmission belt 19, and a servo motor 21 for driving its rotation is arranged on the side of the second pulley 20.

[0036] When working, Figure 1-Figure 2 and Figure 4 As shown, the second pulley 20 can be driven to rotate by the servo motor 21, and the second pulley 20 will drive the first pulley 17 to rotate through the transmission belt 19; at this time, the first pulley 17 will drive the rotating wheel 15 to rotate through the one-way bearing 18; it should be noted that when the grinding table 5 rotates, it will drive the rotating wheel 15 and the first rotating shaft 16 to rotate synchronously through the first pulley 17 and the one-way bearing 18. At this time, all parts in the grinding table 5 rotate synchronously. When the rotating wheel 15 and the first rotating shaft 16 rotate in opposite directions, the grinding table 5 will not rotate, and the rotating wheel 15 can drive the grinding roller 6 to swing through the first connecting rod 14, the incomplete gear 13 and the second sprocket 12.

[0037] As a further solution of the present invention, a support block 22 is slidably connected to the top of the lower grinding table 5, and a reset spring for resetting the support block 22 is fixedly connected to the support block 22; a pressure rod 23 is arranged directly above the support block 22, and the pressure rod 23 is fixedly installed on the upper grinding table 5.

[0038] When working, Figure 1 and Figure 2 As shown, when placing the outer ring of the bearing, the staff can place the outer ring of the bearing on the support block 22; after the grinding roller 6 below clamps the outer ring of the bearing, the grinding table 5 above moves downward and drives the pressure rod 23 to move downward synchronously, and the pressure rod 23 drives the support block 22 to move downward to a position where it does not contact the outer ring of the bearing, thereby ensuring that the support block 22 does not hinder the rotation and grinding of the outer ring of the bearing.

[0039] As a further solution of the present invention, the linear drive mechanism includes a cylinder 24 , a fixed end of the cylinder 24 is connected to the top plate 3 , and a free end of the cylinder 24 is fixedly connected to the mounting plate 4 .

[0040] When working, Figure 2 As shown, the mounting plate 4 can be moved in the vertical direction by the extension and contraction of the cylinder 24 .

[0041] The embodiments of the present invention described above are only examples, and a person skilled in the art of the present invention may make various modifications or derive other equivalent embodiments. Therefore, the present invention is not limited to the embodiments mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined according to the technical ideas of the attached invention claims. Furthermore, it should be understood that the present invention includes the ideas of the present invention defined by the attached invention claims and all variant technical solutions, equivalent technical solutions and alternative technical solutions within its scope.

Claims

1. A surface grinding device for bearing processing and manufacturing, comprising a base (1), wherein the base (1) is fixedly connected to a top plate (3) via a support column (2); characterized in that: A mounting plate (4) is arranged below the top plate (3), and a linear drive mechanism for driving the mounting plate (4) to move is arranged on the top plate (3); a grinding table (5) is rotatably mounted on both the base (1) and the mounting plate (4); a grinding mechanism is arranged on each of the grinding tables (5); the two grinding mechanisms are respectively used to grind the inner and outer rings of the bearing; and a first drive mechanism for driving the grinding mechanism to work is also arranged on the grinding table (5); The grinding mechanism comprises a grinding roller (6), wherein a plurality of the grinding rollers (6) are provided, and the plurality of the grinding rollers (6) are distributed in a circumferential array, and a slider (7) is installed on each of the grinding rollers (6), and each of the sliders (7) is slidably connected to the grinding table (5); and a linear motor for driving the slider (7) to move is provided on the side thereof; The grinding roller (6) is composed of a roller body (61), a clamping plate (62) and a pressure plate (63); a plurality of first clamping grooves (64) are provided on the roller body (61); the clamping plate (62) is elastically slidably connected to the roller body (61); a plurality of clamping plates (62) are provided, and the number of the clamping plates (62) is equal to the number of the first clamping grooves (64); the plurality of clamping plates (62) respectively correspond to the first clamping grooves (64); a wedge-shaped limit block (65) is elastically slidably installed on each of the clamping plates (62); the pressure plate (63) is located above the wedge-shaped limit block (65) and is used to drive the wedge-shaped limit block (65) to move; The grinding roller (6) is rotatably connected to the slider (7); a first sprocket (8) is fixedly connected to the rotating shaft of the grinding roller (6); a tensioning wheel (9) is arranged on the side of the first sprocket (8); the tensioning wheel (9) and the plurality of first sprockets (8) are connected in transmission via a first chain (10); A second sprocket (11) is arranged on the side of the first sprocket (8), and the second sprocket (11) is transmission-connected to the first chain (10); an incomplete gear (12) is fixedly connected to the rotating shaft of the first sprocket (8), and the incomplete gear (12) is meshed with a rack rod (13), and the rack rod (13) is elastically slidably connected to the grinding table (5), and the rack rod (13) is hinged with a first connecting rod (14), and the first connecting rod (14) is hinged with a rotating wheel (15) at one end away from the rack rod (13), and the connection point between the first connecting rod (14) and the rotating wheel (15) is located at a non-center position on the rotating wheel (15), and the rotating wheel (15) is rotationally connected to the grinding table (5), and the rotating shaft of the rotating wheel (15) is fixedly connected with a first rotating shaft (16); The first driving mechanism comprises a first pulley (17), the first pulley (17) is fixedly mounted on the grinding table (5) and is coaxially arranged with the turntable, a one-way bearing (18) is fixedly connected to the inner wall of the first pulley (17), and the bottom end of the rotating shaft of the turntable (15) is fixedly connected to the inner circumferential wall of the one-way bearing (18); the first pulley (17) is connected to the second pulley (20) through a transmission belt (19), and a servo motor (21) for driving the second pulley (20) to rotate is arranged on the side of the second pulley (20).

2. A surface grinding device for bearing manufacturing according to claim 1, characterized in that: The card plate (62) is provided with a second card slot (66), and the second card slot (66) is used for inserting a protrusion (67).

3. A surface grinding device for bearing manufacturing according to claim 1, characterized in that: The top of the lower grinding table (5) is slidably connected to a support block (22), and a reset spring for resetting the support block (22) is fixedly connected to the support block (22); a pressure rod (23) is arranged directly above the support block (22), and the pressure rod (23) is fixedly mounted on the upper grinding table (5).

4. A surface grinding device for bearing manufacturing according to claim 1, characterized in that: The linear drive mechanism comprises a cylinder (24), the fixed end of the cylinder (24) is connected to the top plate (3), and the free end of the cylinder (24) is fixedly connected to the mounting plate (4).

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