A centerless grinder for machining heavy-weight bearing rings

Abstract

The present invention provides a centerless grinder for processing heavy-weight bearing rings, which belongs to the technical field of bearing ring processing equipment and includes a workbench, on which a grinding mechanism for grinding a workpiece, a supporting mechanism for supporting the workpiece and a guiding mechanism for driving the workpiece to rotate are arranged in sequence. The supporting mechanism includes two supporting seats fixedly connected to the workbench, a supporting roller is rotatably connected between the inner walls on both sides of the supporting seats, and a plurality of supporting rings are fixedly connected to the outer wall of the supporting roller at uniform intervals along the length direction of the outer wall of the supporting roller. The present invention has the advantages of improving the stability of the workpiece on the supporting roller and improving the grinding yield rate of the workpiece.

Description

Technical Field

[0001] The present application belongs to the technical field of bearing ring processing equipment, and in particular to a centerless grinder for processing heavy-weight bearing rings. Background Art

[0002] The bearing ring is an annular part of a radial rolling bearing with one or more raceways. During the processing of the bearing ring, the outer wall of the bearing ring needs to be ground, and the grinding is generally performed by a centerless grinder.

[0003] A centerless grinder is a type of grinder that does not require the axis of the workpiece to perform grinding.

[0004] Existing centerless grinders, such as the Chinese invention with application number CN201510734378.9, disclose a centerless grinder, comprising: a bed, an adjustment mechanism, a grinding mechanism and a workpiece support, the adjustment mechanism comprising a guide wheel frame, a guide wheel, a first power mechanism and a feed mechanism, the feed mechanism is mounted on the bed, the guide wheel frame is connected to the feed mechanism and is driven by the feed mechanism to move on the bed; the guide wheel is mounted on the guide wheel frame and is driven by the first power mechanism to rotate, a cleaning wheel is provided on one side of the guide wheel, the cleaning wheel is located at the front end of the workpiece feed direction and is used to clean the surface of the workpiece after grinding, the cleaning wheel is coaxially arranged with the guide wheel, and the cleaning wheel comprises a circular wheel disc and a soft hair bundle implanted on the axial surface of the circular wheel disc; the grinding mechanism is mounted on the bed for grinding the workpiece; the workpiece support is arranged between the adjustment mechanism and the grinding mechanism and cooperates with the guide wheel in the adjustment mechanism to support the workpiece.

[0005] During use of the existing centerless grinder, the workpiece is placed on a support block. Due to the large friction between the workpiece and the support block, the workpiece may slip during processing, causing uneven grinding of the grinding wheel and damage to the workpiece surface. Summary of the invention

[0006] In order to overcome the deficiencies in the background technology, the purpose of the present application is to provide a centerless grinder for machining heavy-weight bearing rings, which has the characteristics of improving the stability of the workpiece on the support roller and improving the grinding yield of the workpiece.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A centerless grinder for processing heavy-weight bearing rings comprises a worktable, on which are arranged in sequence a grinding mechanism for grinding a workpiece, a supporting mechanism for supporting the workpiece and a guiding mechanism for driving the workpiece to rotate, the supporting mechanism comprising two supporting seats fixedly connected to the worktable, a supporting roller rotatably connected between the inner walls on both sides of the supporting seats, and a plurality of supporting rings fixedly connected to the outer wall of the supporting roller at uniform intervals along the length direction of the outer wall of the supporting roller.

[0009] As a preferred solution, the grinding mechanism includes a support frame fixedly connected to the workbench, a grinding wheel is rotatably connected to the support frame, a driving motor for driving the grinding wheel to rotate is fixedly connected to the support frame, an adjustment mechanism for adjusting the distance between the grinding wheel and the support roller is provided on the workbench, and a cleaning mechanism for cleaning impurities on the outer wall of the grinding wheel is provided on the support frame.

[0010] As a preferred solution, the adjustment mechanism includes two slide rails fixedly connected to the upper surface of the workbench, a slider slidably connected to the slide rails, an adjustment plate fixedly connected to the two sliders, an adjustment block fixedly connected to the lower surface of the adjustment plate, an adjustment screw installed on the upper surface of the workbench through a mounting seat, and an adjustment motor fixedly connected to the workbench for driving the adjustment screw to rotate, and the adjustment block is threadedly connected to the outer wall of the adjustment screw.

[0011] As a preferred embodiment, the cleaning mechanism includes a mounting cover fixedly connected to the support frame, the mounting cover is semicircular and hollow inside, the mounting cover is arranged on the side of the grinding wheel away from the supporting roller, the inner wall of the mounting cover and the outer wall of the grinding wheel are arranged with a gap, an air blowing pipe is fixedly connected to the inner wall of the mounting cover, a plurality of air blowing holes are opened on the outer wall of the air blowing pipe, one end of the air blowing pipe is connected to an external air pump, and a cleaning sponge is fixedly connected to the upper end of the inner wall of the mounting cover, and the cleaning sponge abuts against the outer wall of the grinding wheel.

[0012] As a preferred solution, a dust suction hole is opened on the outer wall of the mounting cover, the dust suction hole is arranged in a rectangular shape, a dust suction frame is fixedly connected to the inner wall of the dust suction hole, an exhaust pipe is fixedly connected to the outer wall of the dust suction frame, and an exhaust pump is fixedly connected to one end of the exhaust pipe.

[0013] As a preferred solution, the guide mechanism includes a guide frame installed on a workbench, the guide frame is U-shaped and the opening is facing upward, a guide roller is rotatably connected between the inner walls on both sides of the guide frame, a servo motor for driving the guide roller to rotate is fixedly connected to the guide frame, and a driving mechanism for driving the guide frame away from and close to the support roller is provided on the workbench.

[0014] As a preferred solution, the driving mechanism includes two guide rails fixedly connected to the upper surface of the workbench, the two guide rails are arranged in parallel, a guide block is fixedly connected to the guide frame, the guide block is slidably connected to the guide rails, a driving screw is rotatably connected to the upper surface of the workbench through a fixed seat, a driving block is fixedly connected to the guide frame, the driving block is threadedly connected to the driving screw, and a power motor for driving the driving screw to rotate is provided on the workbench.

[0015] As a preferred embodiment, a linkage mechanism is provided between the support roller and the guide roller, and the linkage mechanism includes a first linkage wheel coaxially fixedly connected to the rotating shaft of the guide roller, a second linkage wheel coaxially fixedly connected to the rotating shaft of the support roller, a synchronous belt wound between the first linkage wheel and the second linkage wheel, and an adjusting part arranged on a workbench for adjusting the tightness of the synchronous belt, and the diameter of the first linkage wheel is the same as the diameter of the second linkage wheel.

[0016] As a preferred solution, the adjusting member includes a vertical rod fixedly connected to the workbench, a support rod slidably connected to the outer wall of the vertical rod, an adjusting wheel rotatably connected to the outer wall of the upper end of the support rod, a connecting rod with one end rotatably connected to the outer wall of the support rod, the other end of the connecting rod is rotatably connected to the outer wall of the guide frame, an adjusting hole is opened on the end surface of the lower end of the support rod, an adjusting spring is fixedly connected to the bottom of the adjusting hole, and the other end of the adjusting spring is fixedly connected to the end surface of the upper end of the vertical rod.

[0017] As a preferred solution, a positioning mechanism for positioning the workpiece on the support roller is provided on the workbench, the positioning mechanism includes a positioning frame fixedly connected to the upper surface of the workbench, a long groove is provided on the positioning frame, a long block is slidably connected in the long groove, a positioning wheel is rotatably connected to the long block, a positioning spring is fixedly connected to the upper surface of the long block, the other end of the positioning spring abuts against the upper surface of the inner wall of the long groove, a positioning hole is provided on the upper surface of the inner wall of the long groove, a positioning ring is slidably connected in the positioning hole, the lower end of the positioning ring is fixedly connected to the long block, and the positioning ring A positioning hole is passed through the upper end of the positioning ring, and a positioning rod is slidably connected to the inner wall of one end of the positioning ring passing through the positioning hole; a positioning block is fixedly connected to the upper surface of the positioning rod; the end faces of both ends of the positioning block are smoothly arranged with the upper surface of the positioning rod; a positioning plate is fixedly connected to the upper surface of the positioning frame; a through hole is provided on the positioning plate, one end of the positioning rod is slidably connected in the through hole, a retaining ring is fixedly connected to the end face of one end of the positioning rod, a return spring is sleeved on the outer wall of one end of the positioning rod close to the retaining ring, and a driving plate is fixedly connected to the end face of one end of the positioning rod away from the retaining ring.

[0018] Compared with the prior art, this application has the following advantages:

[0019] 1. In the present application, the workpiece is placed on a support ring on a support roller, the workpiece is driven to rotate by a guide mechanism, and the workpiece is ground by a grinding mechanism. In the present application, the support roller is rotatably connected to the support seat, and at the same time, the outer wall of the support ring and the outer wall of the workpiece are in line contact, and the friction between the support ring and the workpiece is small. Through such an arrangement, the structure is simple, the operation is convenient, the stability of the workpiece on the support roller is improved, and the grinding yield of the workpiece is improved.

[0020] 2. In the present application, a first interlocking wheel is fixedly connected to the rotating shaft of the guide wheel, a second interlocking wheel is fixedly connected to the rotating shaft of the support roller, and a synchronous belt is wound between the first interlocking wheel and the second interlocking wheel. Through such an arrangement, the structure is simple and the operation is convenient. While the guide wheel rotates, it drives the support roller to rotate through the synchronous belt, and the support roller drives the workpiece to rotate through the support ring, which further improves the stability of the grinding wheel on the workpiece.

[0021] 3. In the present application, the workpiece is placed on the supporting roller and pushed. The workpiece drives the positioning rod to move through the driving plate. The positioning rod slides in the positioning ring. The positioning block on the positioning rod drives the positioning ring to move upward. The positioning ring drives the long block to move upward. The long block drives the positioning wheel to move upward. The workpiece continues to drive the positioning rod to move. The positioning ring moves from the positioning block to the positioning rod. The positioning ring is reset under the action of the positioning spring. The positioning wheel abuts against the inner wall of the workpiece. Through such an arrangement, the structure is simple and the operation is convenient, which improves the stability of the workpiece placed on the supporting roller and improves the processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0023] Figure 2 It is a structural schematic diagram of the supporting mechanism and the positioning mechanism in the embodiment of the present application.

[0024] Figure 3 It is a cross-sectional view of the grinding wheel in the embodiment of the present application.

[0025] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0026] Figure 5 It is a structural diagram of the linkage mechanism in the embodiment of the present application.

[0027] Figure 6 It is a cross-sectional view of the vertical rod and the support rod in the embodiment of the present application.

[0028] In the figure, 1, workbench; 2, grinding mechanism; 3, supporting mechanism; 4, guiding mechanism; 5, supporting seat; 6, supporting roller; 7, supporting ring; 8, supporting frame; 9, grinding wheel; 10, driving motor; 11, adjusting mechanism; 12, cleaning mechanism; 13, slide rail; 14, slider; 15, adjusting block; 16, adjusting screw; 17, adjusting motor; 18, mounting cover; 19, blowing pipe; 20, blowing hole; 21, cleaning sponge; 22, dust suction hole; 23, dust suction frame; 24, exhaust pipe; 25, exhaust pump; 26, guide frame; 27, guide roller; 28, servo motor; 29, driving mechanism; 30, guide rail; 3 1. Guide block; 32. Drive screw; 33. Drive block; 34. Power motor; 35. Linkage mechanism; 36. First linkage wheel; 37. Second linkage wheel; 38. Synchronous belt; 39. Adjustment member; 40. Vertical rod; 41. Support rod; 42. Adjustment wheel; 43. Connecting rod; 44. Adjustment hole; 45. Adjustment spring; 46. Positioning mechanism; 47. Positioning frame; 48. Long groove; 49. Long block; 50. Positioning wheel; 51. Positioning spring; 52. Positioning hole; 53. Positioning ring; 54. Positioning rod; 55. Positioning block; 56. Positioning plate; 57. Through hole; 58. Retaining ring; 59. Reset spring; 60. Drive plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a centerless grinder for processing heavy-weight bearing rings includes a workbench 1, the upper surface of the workbench 1 is rectangular, and an adjusting bolt is threadedly connected to the lower surface of each of the four feet of the workbench 1. A grinding mechanism 2 for grinding a workpiece, a supporting mechanism 3 for supporting the workpiece, and a guiding mechanism 4 for rotating the workpiece to be used are sequentially arranged on the upper surface of the workbench 1.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the grinding mechanism 2 includes a support frame 8, a grinding wheel 9, a drive motor 10, an adjustment mechanism 11, and a cleaning mechanism 12. The support frame 8 is arranged on the workbench 1, the grinding wheel 9 is rotatably connected to the support frame 8, and the grinding wheel 9 is axially arranged along the width direction of the workbench 1. The drive motor 10 is fixedly connected to the support frame 8. The drive motor 10 is used to drive the grinding wheel 9 to rotate. The adjustment mechanism 11 is arranged between the support frame 8 and the workbench 1. The adjustment mechanism 11 is used for the position of the grinding wheel 9 on the workbench 1. The cleaning mechanism 12 is arranged on the support frame 8, and the cleaning mechanism 12 is used to clean impurities on the outer wall of the grinding wheel 9.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the adjustment mechanism 11 includes a slide rail 13, two slide rails 13 are fixedly connected to the workbench 1, and the two slide rails 13 are arranged in parallel. A slider 14 is fixedly connected to the lower surface of the support frame 8, and the slider 14 is slidably connected to the slide rail 13. An adjustment block 15 is fixedly connected to the lower surface of the support frame 8. An adjustment screw 16 is rotatably connected to the upper surface of the workbench 1 through a mounting seat. The adjustment block 15 is threadedly connected to the adjustment screw 16. An adjustment motor 17 for driving the adjustment screw 16 to rotate is fixedly connected to the workbench 1, and the adjustment motor 17 and the adjustment screw 16 are connected through a reducer.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the cleaning mechanism 12 includes a mounting cover 18, an air blowing pipe 19, an air blowing hole 20, a cleaning sponge 21, a dust suction hole 22, a dust suction frame 23, an air suction pipe 24 and an air suction pump 25. The mounting cover 18 is fixedly connected to the support frame 8. The mounting cover 18 is arranged in a semicircular shape. The interior of the mounting cover 18 is hollow. The mounting cover 18 is arranged on the outer wall of the grinding wheel 9. The inner wall of the mounting cover 18 and the outer wall of the grinding wheel 9 are arranged with a gap. The air blowing pipe 19 is fixedly connected to the lower end of the inner wall of the mounting cover 18. The air blowing pipe 19 is arranged along the axial direction of the mounting cover 18. The air blowing hole 20 is opened on the outer wall of the air blowing pipe 19 and along the length of the air blowing pipe 19 The dust suction hole 22 is evenly spaced in the degree direction, the blowing hole 20 is arranged toward one side of the inner wall of the mounting cover 18, the cleaning sponge 21 is fixedly connected to the upper end of the inner wall of the mounting cover 18, the cleaning sponge 21 abuts against the outer wall of the grinding wheel 9, the dust suction hole 22 is opened on the outer wall of the mounting cover 18, the dust suction hole 22 is rectangular and the length direction is arranged along the length direction of the mounting cover 18, the dust suction frame 23 is fixedly connected to the inner wall of the dust suction hole 22, the interior of the dust suction frame 23 is hollow, one end of the exhaust pipe 24 is fixedly connected to the outer wall of the dust suction frame 23 and is connected to the interior of the dust suction frame 23, and the exhaust pump 25 is fixedly connected to the other end of the exhaust pipe 24.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the guide mechanism 4 includes a guide frame 26, a guide roller 27, a servo motor 28 and a drive mechanism 29. The guide frame 26 is installed on the workbench 1. The guide frame 26 is U-shaped and the opening is upward. The guide roller 27 is rotatably connected between the inner walls on both sides of the guide frame 26. The servo motor 28 is fixedly connected to the guide frame 26. The servo motor 28 is used to drive the guide roller 27 to rotate. The drive mechanism 29 includes a guide rail 30, a guide block 31, a drive screw 32, a drive block 33 and a power motor 34. The guide rail 30 is fixedly connected to the workbench 1 Two guide rails 30 are fixedly connected to the workbench 1, and the two guide rails 30 are arranged in parallel. A guide block 31 is fixedly connected to the guide frame 26, and the guide block 31 is slidably connected to the guide rail 30. A driving block 33 is fixedly connected to the guide frame 26. A driving screw 32 is rotatably connected to the workbench 1 through a mounting seat. The driving screw 32 is threadedly connected to the driving block 33. A driving motor 10 is fixedly connected to the workbench 1. The driving motor 10 is used to drive the driving screw 32 to rotate, and the driving motor 10 and the driving screw 32 are connected through a reducer.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the support mechanism 3 includes a support seat 5, a support roller 6 and a support ring 7. The support seat 5 is fixedly connected to the upper surface of the workbench 1, the support seat 5 is located between the grinding wheel 9 and the guide roller 27, the support seat 5 is U-shaped and the opening is upward, the support roller 6 is rotatably connected between the inner walls on both sides of the support frame 8, the support ring 7 is fixedly connected to the outer wall of the support roller 6, and a plurality of support rings 7 are fixedly connected at uniform intervals along the length direction of the support roller 6. The support ring 7 is circular and the outer wall of the support ring 7 is arc-shaped.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in order to facilitate better rotation of the workpiece, a linkage mechanism 35 is provided between the support roller 6 and the guide roller 27. The linkage mechanism 35 includes a first linkage wheel 36, a second linkage wheel 37, a synchronous belt 38 and an adjusting member 39. The first linkage wheel 36 is coaxially fixedly connected to the rotating shaft of the guide roller 27, and the second linkage wheel 37 is coaxially fixedly connected to the rotating shaft of the support roller 6. The diameter of the first linkage wheel 36 is the same as the diameter of the second linkage wheel 37. The synchronous belt 38 is wound between the first synchronous wheel and the second synchronous wheel. The adjusting member 39 is arranged on the workbench 1. The adjusting member 39 is used to synchronously adjust the tightness of the synchronous belt 38 by moving the guide frame 26.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the adjusting member 39 includes a vertical rod 40, a support rod 41, an adjusting wheel 42, a connecting rod 43, and an adjusting spring 45. The vertical rod 40 is fixedly connected to the upper surface of the workbench 1, and the vertical rod 40 is vertically arranged. An adjusting hole 44 is provided on the end surface of the lower end of the support rod 41. The support rod 41 is slidably connected to the outer wall of the upper end of the vertical rod 40 through the adjusting hole 44. The adjusting wheel 42 is rotatably connected to the outer wall of the upper end of the support rod 41. The adjusting wheel 42 abuts against the outer wall of the synchronous belt 38. The adjusting spring 45 is arranged in the adjusting hole 44. The two ends of the adjusting spring 45 are respectively fixedly connected to the bottom of the adjusting hole 44 and the upper end surface of the vertical rod 40. One end of the connecting rod 43 is rotatably connected to the outer wall of the support rod 41, and the other end of the connecting rod 43 is rotatably connected to the outer wall of the guide frame 26. The height of the connecting rod 43 close to the support rod 41 is greater than the height of the connecting rod 43 close to the guide frame 26.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, in order to better drive the workpiece to rotate, a positioning mechanism 46 for positioning the workpiece is provided on the workbench 1, and the positioning mechanism 46 includes a positioning frame 47, a long block 49, a positioning wheel 50, a positioning spring 51, a positioning ring 53, a positioning rod 54, a positioning block 55, a positioning plate 56, a retaining ring 58, a reset spring 59 and a driving plate 60. The positioning frame 47 is fixedly connected to the workbench 1, and a long groove 48 is provided on the positioning frame 47, and the long groove 48 is vertically arranged. The long block 49 is slidably connected in the long groove 48, and the positioning wheel 50 is rotatably connected to the long block 49. The positioning wheel 50 is located above the supporting roller 6 and the positioning wheel 50 abuts against the inner wall of the workpiece. The reset spring 59 is arranged in the long groove 48, and the two ends of the reset spring 59 are respectively fixedly connected to the upper surface of the long block 49 and the upper surface of the inner wall of the long groove 48. A positioning hole 52 is provided on the upper surface of the positioning frame 47, and the positioning ring 53 is slidably connected in the positioning hole 52. The positioning ring 53 is arranged in a rectangular shape, the lower end of the positioning ring 53 is on the upper surface of the long block 49, the positioning spring 51 is sleeved on the positioning ring 53, the positioning plate 56 is fixedly connected to the upper surface of the positioning frame 47, a through hole 57 is provided on the positioning plate 56, the positioning rod 54 is slidably connected to the through hole 57 and the inner wall of the upper end of the positioning ring 53, the positioning block 55 is fixedly connected to the upper surface of the positioning rod 54, the end faces of both ends of the positioning block 55 are smoothly arranged with the upper surface of the positioning rod 54, the retaining ring 58 is fixedly connected to the outer wall of one end of the positioning rod 54 passing through the through hole 57, the return spring 59 is sleeved on the outer wall of one end of the positioning rod 54 passing through the through hole 57, the two ends of the return spring 59 are respectively fixedly connected to the retaining ring 58 and the positioning plate 56, the driving plate 60 is fixedly connected to the end face of the positioning rod 54 away from the retaining ring 58, when the inner wall of the upper end of the positioning ring 53 abuts on the positioning ring 53, the outer wall of the positioning wheel 50 abuts on the outer wall of the support ring 7.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, when the workpiece is placed on the support ring 7, the outer wall of the workpiece abuts against the outer wall of the guide wheel, the grinding wheel 9 abuts against the outer wall of the workpiece, the axis of the workpiece is located between the axis of the support roller 6 and the axis of the guide wheel, and the height of the axis of the guide wheel is lower than the height of the axis of the grinding wheel 9.

[0040] The working principle of the embodiment of the present application is as follows: the operator places the workpiece on the outer wall of the support roller 6, the workpiece drives the positioning rod 54 to move through the driving plate 60, the positioning rod 54 drives the long block 49 to move upward through the positioning block 55, when the positioning wheel 50 is located inside the workpiece, the operator continues to drive the workpiece to move, when the inner wall of the upper end of the positioning ring 53 abuts against the positioning rod 54, the positioning wheel 50 abuts against the inner wall of the workpiece, the operator adjusts the position of the grinding wheel 9 and the guide wheel according to the diameter of the workpiece, the adjustment motor 17 and the power motor 34 drive the driving screw 32 and the adjusting screw 16 to rotate, after the position of the grinding wheel 9 and the guide wheel is adjusted, the axis of the workpiece is located between the axis of the support roller 6 and the axis of the guide wheel;

[0041] When the workpiece is processed, the servo motor 28 drives the guide wheel to rotate, the guide wheel drives the workpiece to rotate, the guide wheel drives the support roller 6 to rotate through the first linkage wheel 36 and the second linkage wheel 37, the support roller 6 drives the workpiece to rotate, and the drive motor 10 drives the grinding wheel 9 to grind the outer wall of the workpiece;

[0042] When the operator adjusts the position of the guide wheel, after the guide frame 26 slides on the guide rail 30 , the guide frame 26 drives the support rod 41 to move through the connecting rod 43 , and the support rod 41 drives the adjusting wheel 42 to move, and the adjusting wheel 42 always abuts against the outer wall of the synchronous belt 38 .

[0043] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0044] The above is a detailed introduction to the one provided by the present application. Specific examples are used herein to illustrate the principle and implementation method of the present application, and the description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A centerless grinder for machining heavy-weight bearing rings, characterized in that: The invention comprises a workbench (1), on which a grinding mechanism (2) for grinding a workpiece, a supporting mechanism (3) for supporting the workpiece and a guiding mechanism (4) for driving the workpiece to rotate are arranged in sequence, wherein the supporting mechanism (3) comprises two supporting seats (5) fixedly connected to the workbench (1), a supporting roller (6) is rotatably connected between the inner walls on both sides of the supporting seats (5), and a plurality of supporting rings (7) are fixedly connected to the outer wall of the supporting roller (6) at uniform intervals along the length direction of the outer wall of the supporting roller (6); A positioning mechanism (46) for positioning a workpiece on a supporting roller (6) is provided on the workbench (1). The positioning mechanism (46) comprises a positioning frame (47) fixedly connected to the upper surface of the workbench (1). A long groove (48) is provided on the positioning frame (47). A long block (49) is slidably connected in the long groove (48). A positioning wheel (50) is rotatably connected to the long block (49). A positioning spring (51) is fixedly connected to the upper surface of the long block (49). The other end of the positioning spring (51) abuts against the long groove (48). A positioning hole (52) is provided on the upper surface of the inner wall of the long groove (48), a positioning ring (53) is slidably connected in the positioning hole (52), the lower end of the positioning ring (53) is fixedly connected to the long block (49), the upper end of the positioning ring (53) passes through the positioning hole (52), a positioning rod (54) is slidably connected to the inner wall of one end of the positioning ring (53) passing through the positioning hole (52), a positioning block (55) is fixedly connected to the upper surface of the positioning rod (54), and the end surfaces of both ends of the positioning block (55) are aligned with the positioning rod (54). ) has a smooth upper surface, a positioning plate (56) is fixedly connected to the upper surface of the positioning frame (47), a through hole (57) is provided on the positioning plate (56), one end of the positioning rod (54) is slidably connected in the through hole (57), a retaining ring (58) is fixedly connected to an end surface of the positioning rod (54), a return spring (59) is sleeved on the outer wall of an end of the positioning rod (54) close to the retaining ring (58), and a driving plate (60) is fixedly connected to an end surface of the positioning rod (54) away from the retaining ring (58).

2. A centerless grinder for machining heavy-weight bearing rings according to claim 1, characterized in that: The grinding mechanism (2) comprises a support frame (8) fixedly connected to a workbench (1), a grinding wheel (9) rotatably connected to the support frame (8), a driving motor (10) for driving the grinding wheel (9) to rotate fixedly connected to the support frame (8), an adjusting mechanism (11) for adjusting the distance between the grinding wheel (9) and a supporting roller (6) is provided on the workbench (1), and a cleaning mechanism (12) for cleaning impurities on the outer wall of the grinding wheel (9) is provided on the support frame (8).

3. A centerless grinder for machining heavy-weight bearing rings according to claim 2, characterized in that: The adjusting mechanism (11) comprises two slide rails (13) fixedly connected to the upper surface of the workbench (1), a slider (14) slidably connected to the slide rails (13), an adjusting block (15) fixedly connected to the lower surface of the support frame (8), an adjusting screw (16) mounted on the upper surface of the workbench (1) via a mounting seat, and an adjusting motor (17) fixedly connected to the workbench (1) for driving the adjusting screw (16) to rotate, wherein the adjusting block (15) is threadedly connected to the outer wall of the adjusting screw (16).

4. A centerless grinder for machining heavy-weight bearing rings according to claim 3, characterized in that: The cleaning mechanism (12) comprises a mounting cover (18) fixedly connected to the support frame (8), the mounting cover (18) being semicircular in shape and hollow inside, the mounting cover (18) being arranged on a side of the grinding wheel (9) away from the supporting roller (6), the inner wall of the mounting cover (18) and the outer wall of the grinding wheel (9) being arranged with a gap, a blowing pipe (19) being fixedly connected to the inner wall of the mounting cover (18), a plurality of blowing holes (20) being opened on the outer wall of the blowing pipe (19), one end of the blowing pipe (19) being connected to an external air pump, a cleaning sponge (21) being fixedly connected to the upper end of the inner wall of the mounting cover (18), and the cleaning sponge (21) being in contact with the outer wall of the grinding wheel (9).

5. A centerless grinder for machining heavy-weight bearing rings according to claim 4, characterized in that: A dust suction hole (22) is provided on the outer wall of the installation cover (18), the dust suction hole (22) is arranged in a rectangular shape, a dust suction frame (23) is fixedly connected to the inner wall of the dust suction hole (22), an exhaust pipe (24) is fixedly connected to the outer wall of the dust suction frame (23), and an exhaust pump (25) is fixedly connected to one end of the exhaust pipe (24).

6. A centerless grinder for machining heavy-weight bearing rings according to claim 1, characterized in that: The guide mechanism (4) comprises a guide frame (26) mounted on the workbench (1); the guide frame (26) is arranged in a U shape and has an opening facing upward; a guide roller (27) is rotatably connected between inner walls on both sides of the guide frame (26); a servo motor (28) for driving the guide roller (27) to rotate is fixedly connected to the guide frame (26); and a driving mechanism (29) for driving the guide frame (26) to move away from and toward the support roller (6) is provided on the workbench (1).

7. A centerless grinder for machining heavy-weight bearing rings according to claim 6, characterized in that: The driving mechanism (29) comprises two guide rails (30) fixedly connected to the upper surface of the workbench (1), the two guide rails (30) are arranged in parallel, a guide block (31) is fixedly connected to the guide frame (26), the guide block (31) is slidably connected to the guide rails (30), a driving screw (32) is rotatably connected to the upper surface of the workbench (1) through a fixed seat, a driving block (33) is fixedly connected to the guide frame (26), the driving block (33) is threadedly connected to the driving screw (32), and a power motor (34) for driving the driving screw (32) to rotate is provided on the workbench (1).

8. A centerless grinder for machining heavy-weight bearing rings according to claim 7, characterized in that: A linkage mechanism (35) is provided between the support roller (6) and the guide roller (27), the linkage mechanism (35) comprising a first linkage wheel (36) coaxially fixedly connected to the rotating shaft of the guide roller (27), a second linkage wheel (37) coaxially fixedly connected to the rotating shaft of the support roller (6), a synchronous belt (38) wound between the first linkage wheel (36) and the second linkage wheel (37), and an adjusting member (39) provided on the workbench (1) for adjusting the tightness of the synchronous belt (38), the diameter of the first linkage wheel (36) and the diameter of the second linkage wheel (37) being the same.

9. A centerless grinder for machining heavy-weight bearing rings according to claim 8, characterized in that: The adjusting member (39) comprises a vertical rod (40) fixedly connected to the workbench (1), a support rod (41) slidably connected to the outer wall of the vertical rod (40), an adjusting wheel (42) rotatably connected to the outer wall of the upper end of the support rod (41), and a connecting rod (43) rotatably connected to the outer wall of the support rod (41) at one end, the other end of the connecting rod (43) being rotatably connected to the outer wall of the guide frame (26), an adjusting hole (44) being provided on the lower end surface of the support rod (41), an adjusting spring (45) being fixedly connected to the bottom of the adjusting hole (44), and the other end of the adjusting spring (45) being fixedly connected to the upper end surface of the vertical rod (40).

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