Clamping table suitable for machining end faces of multiple sets of floating ring bearings

Abstract

The utility model relates to a clamping table suitable for machining end faces of multiple groups of floating ring bearings, which comprises a rectangular bottom plate, stand columns are fixedly connected to four corners of the bottom plate, a rectangular platform is fixedly connected to the upper ends of the stand columns, a plurality of rotary supporting tables which are transversely and uniformly distributed are arranged on the platform, and a clamping seat is formed in the middle of the upper end face of each rotary supporting table. A clamping hole penetrating through the lower end face of the clamping seat is formed in the clamping seat, a connecting sleeve extending downwards is formed on the lower end face of the rotary supporting table on the outer side of the clamping hole, the lower end of the connecting sleeve extends out of the platform to be fixedly connected with gears in an inserted and sleeved mode, and the adjacent gears are meshed together. A plurality of concave holes are formed in the inner wall of the upper portion of the clamping hole, a retaining column is inserted into the clamping hole of the rotary supporting table, a plurality of balls abut against the outer wall of the retaining column, and the balls are inserted into the concave holes and extend out of the outer wall of the rotary supporting table. The clamping table is provided with a plurality of stations for clamping the floating ring bearing, the stations are linearly arranged and can limit rotation and positioning at the same time, and milling of the oil groove in the floating ring bearing can be greatly facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of floating ring bearings, and more specifically to a clamping table suitable for machining the end faces of multiple sets of floating ring bearings. Background Technology

[0002] A turbocharger is essentially an air compressor that increases the intake air volume by compressing air. The turbocharger's structure includes a housing (volute, intermediate housing, compressor housing), shaft, turbine, and compressor impeller. A floating ring bearing connects the housing and shaft, with one end face of the floating ring bearing resting against the turbocharger housing. Since the floating ring bearing rotates at high speed with the shaft, its end face in contact with the housing is prone to wear. Therefore, some have proposed machining multiple lubrication grooves on its end face, where lubricating grease can be placed to form an oil film on the end face of the floating ring bearing, thereby reducing wear. Currently, these lubrication grooves are generally formed by milling, and a single floating ring bearing has multiple grooves. However, conventional milling machines can only perform linear feed in the X or Y direction. Machining a single floating ring bearing requires multiple disassembly and reassembly adjustments to change angles, making the process cumbersome. Therefore, a device is needed to easily machine lubrication grooves on floating ring bearings. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technology by providing a clamping table suitable for machining the end faces of multiple floating ring bearings. The clamping table has multiple stations for clamping floating ring bearings, which are arranged linearly and can simultaneously restrict rotation and positioning, greatly facilitating the milling of oil grooves on floating ring bearings.

[0004] A clamping table suitable for machining the end faces of multiple floating ring bearings includes a rectangular base plate, columns fixed to the four corners of the base plate, a rectangular platform fixed to the upper end of the columns, a number of horizontally evenly spaced rotating supports on the platform, a cylindrical clamping seat formed in the middle of the upper surface of the rotating supports, a clamping hole formed in the clamping seat penetrating the lower surface of the clamping seat, a downwardly extending connecting sleeve formed on the lower surface of the rotating supports outside the clamping hole, the connecting sleeve being connected to the platform through a bearing, and a gear fixed to the lower end of the connecting sleeve extending out of the platform, with adjacent gears meshing together;

[0005] The upper inner wall of the clamping hole is formed with several recessed holes penetrating the outer wall of the rotating platform. A cylindrical anti-reverse post is inserted into the clamping hole of the rotating platform. Several balls are abutted against the upper outer wall of the anti-reverse post. The balls are inserted into the recessed holes of the rotating platform and extend out of the outer wall of the rotating platform. The upper end of the anti-reverse post is formed with a retraction boss opposite to the balls, and the lower end extends out of the connecting sleeve and is formed with an insertion post. The insertion post is inserted and fixed to the linkage plate. Vertical clamping bolts are inserted on both sides of the platform. The lower ends of the clamping bolts are screwed to the linkage plate.

[0006] The outer wall of the rotating support on one side of the platform is formed with an ear plate, and a positioning bolt is screwed onto the ear plate. Several positioning holes are formed on the platform around the rotating support, and the ends of the positioning bolts are inserted into the positioning holes of the platform.

[0007] Preferably, a circular floating ring bearing is placed on the rotating support, and a plurality of lubricating oil holes penetrating the outer wall of the floating ring bearing are formed on the inner wall of the floating ring bearing. The clamping seat on the rotating support is inserted into the clamping seat, and the balls on the clamping seat are respectively locked in the lubricating oil holes of the floating ring bearing.

[0008] Preferably, vertically inverted T-shaped guide posts are inserted into the front and rear sides of the middle part of the linkage plate, and the upper end of the T-shaped guide posts is fixed to the platform.

[0009] Preferably, a guide bushing is inserted and fixed inside the rotating support and the connecting sleeve, and a stop post is inserted inside the guide bushing. The radius of the guide bushing is greater than the radius of the retraction boss, and the difference between the radius of the retraction boss and the radius of the guide bushing is greater than the length of the ball extending out of the rotating support.

[0010] Preferably, the central axis of the rotating support and the central axis of the anti-reverse column are on the same straight line, and the balls are evenly distributed in a ring around the central axis of the anti-reverse column;

[0011] The top of the retractable boss is formed with a pressure stabilizing hole that penetrates the lower end face of the insertion post.

[0012] Preferably, the diameter of the outer wall of the floating ring bearing is smaller than the diameter of the rotating support, and the diameter of the inner wall of the floating ring bearing is equal to the diameter of the clamping seat.

[0013] Preferably, the positioning holes on the platform are all located on the front side of the clamping seat, the center distance from the positioning holes to the clamping seat is consistent, and the hole spacing between adjacent positioning holes is equal.

[0014] The beneficial effects of this utility model are as follows:

[0015] This clamping table has multiple stations for clamping floating ring bearings. The stations are arranged linearly and can simultaneously restrict rotation and positioning, which greatly facilitates the milling of oil grooves on the floating ring bearings. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure at point BB.

[0020] In the diagram: 1. Base plate; 2. Column; 3. Platform; 31. Positioning hole; 4. Rotating support; 41. Clamping seat; 42. Clamping hole; 43. Shoulder; 44. Connecting sleeve; 45. Ear plate; 5. Anti-reverse column; 51. Reverse boss; 52. Insert column; 53. Pressure stabilizing hole; 6. Ball bearing; 7. Linkage plate; 8. Clamping bolt; 9. Positioning bolt; 10. Gear; 11. Floating ring bearing; 111. Lubricating oil hole; 112. V-shaped lubricating oil groove; 12. T-shaped guide column; 13. Guide bushing. Detailed Implementation

[0021] Example: See Figures 1 to 4 As shown, a clamping table suitable for machining the end faces of multiple floating ring bearings includes a rectangular base plate 1, with columns 2 fixedly connected to the four corners of the base plate 1, and a rectangular platform 3 fixedly connected to the upper end of the columns 2. Several horizontally evenly distributed rotating supports 4 are provided on the platform 3. A cylindrical clamping seat 41 is formed in the middle of the upper end face of the rotating support 4. A clamping hole 42 is formed in the clamping seat 41, penetrating the lower end face of the clamping seat 41. A downwardly extending connecting sleeve 44 is formed on the lower end face of the rotating support 4 outside the clamping hole 42. The connecting sleeve 44 is connected to the platform 3 through a bearing. The lower end of the connecting sleeve 44 extends out of the platform 3 and is inserted and fixedly connected to a gear 10. Adjacent gears 10 mesh together.

[0022] The inner wall of the upper part of the clamping hole 42 is formed with several recessed holes 43 that penetrate the outer wall of the rotating platform 4. The recessed holes 43 are spherical on one side of the outer wall of the rotating platform 4 (which can prevent the balls 6 below from detaching from the rotating platform 4). A cylindrical anti-retraction post 5 is inserted into the clamping hole 42 of the rotating platform 4. Several balls 6 are abutted on the outer wall of the upper part of the anti-retraction post 5. The balls 6 are inserted into the recessed holes 43 of the rotating platform 4 and extend out of the outer wall of the rotating platform 4. The upper end of the anti-retraction post 5 is formed with a retraction protrusion 51 opposite to the balls 6, and the lower end extends out of the connecting sleeve 44 and is formed with an insertion post 52. The insertion post 52 is inserted and fixed to the linkage plate 7. Vertical clamping bolts 8 are inserted on both sides of the platform 3. The lower end of the clamping bolts 8 is screwed onto the linkage plate 7.

[0023] An ear plate 45 is formed on the outer wall of the rotating support 4 on one side of the platform 3. A positioning bolt 9 is screwed onto the ear plate 45. Several positioning holes 31 are formed on the platform 3 around the rotating support 4. The end of the positioning bolt 9 is inserted into the positioning hole 31 of the platform 3.

[0024] The rotating support 4 is equipped with a circular floating ring bearing 11. The inner wall of the floating ring bearing 11 has a plurality of lubricating oil holes 111 that penetrate the outer wall of the floating ring bearing 11. The clamping seat 41 on the rotating support 4 is inserted into the clamping seat 41. The balls 6 on the clamping seat 41 are respectively locked in the lubricating oil holes 111 of the floating ring bearing 11. Therefore, the rotating support 4 uses the floating ring bearing 11 to clamp the floating ring bearing 11.

[0025] Vertically inverted T-shaped guide posts 12 are inserted into the front and rear sides of the middle part of the linkage plate 7. The upper end of the T-shaped guide post 12 is fixed to the platform 3. The T-shaped guide post 12 can constrain the downward movement distance of the anti-retraction post 5 and prevent the retraction boss 51 from moving to the lower side of the ball 6, thereby preventing the ball 6 from exiting the concave hole 43.

[0026] A guide bushing 13 is inserted and fixed inside the rotating support 4 and the connecting sleeve 44. The anti-retraction post 5 is inserted inside the guide bushing 13. The radius of the guide bushing 13 is greater than the radius of the retraction boss 51. The difference between the radius of the retraction boss 51 and the radius of the guide bushing 13 is greater than the length of the ball 6 extending out of the rotating support 4. When the retraction boss 51 is opposite to the ball 6, the ball 6 can retract in the concave hole 43 and hide in the clamping seat 41.

[0027] The central axis of the rotating support 4 and the central axis of the anti-reverse column 5 are on the same straight line, and the balls 6 are evenly distributed in a ring around the central axis of the anti-reverse column 5.

[0028] The top of the retractable boss 51 is formed with a pressure stabilizing hole 53 that penetrates the lower end face of the insert post 52 to balance the air pressure in the clamping hole 42.

[0029] The diameter of the outer wall of the floating ring bearing 11 is smaller than the diameter of the rotating support 4, and the diameter of the inner wall of the floating ring bearing 11 is equal to the diameter of the clamping seat 41. The clamping seat 41 achieves the center positioning of the floating ring bearing 11.

[0030] The positioning holes 31 on the platform 3 are all located on the front side of the clamping base 41, the center distance from the positioning holes 31 to the clamping base 41 is consistent, and the hole spacing between adjacent positioning holes 31 is equal. Figure 1 As shown, its floating ring bearing 11 requires the machining of six equally spaced V-shaped lubricating oil grooves 112. A milling machine can complete the machining of these six V-shaped lubricating oil grooves 112 in three passes using a linear machining method. Three positioning holes 31 are provided to limit the rotation angle of its rotating support 4. Figure 1 The angle between adjacent positioning holes 31 shown is 60 degrees.

[0031] Working principle: This structure is a clamping table suitable for machining the end faces of multiple floating ring bearings. The clamping table is used as follows: Before clamping, first rotate the clamping bolt 8 to drive the linkage plate 7 to move down, which in turn drives the anti-reverse column 5 to move down, so that the retraction boss 51 moves to the ball 6. The ball 6 can retract into the clamping seat 41. Then, the floating ring bearings 11 are respectively sleeved on the clamping seat 41, with their lubrication holes 111 opposite to the ball 6. Then, rotate the clamping bolt 8 to drive the anti-reverse column 5 to move up. The anti-reverse column 5 pushes out the ball 6 and locks it in the lubrication hole 111 of the floating ring bearing 11, thus completing the clamping of the floating ring bearing 11.

[0032] Then, the milling cutter feeds in the X direction and mills in one pass. All floating ring bearings 11 can complete the machining of two V-shaped lubricating oil grooves 112. Then, the rotating support 4 is rotated. Based on the gear 10, all rotating supports 4 can be rotated at the same angle. Then, the milling cutter feeds in the X direction in the opposite direction and can complete the machining of two more V-shaped lubricating oil grooves 112. Then, in the above manner, all V-shaped lubricating oil grooves 112 can be machined by the milling cutter feed.

[0033] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A clamping table suitable for machining the end faces of multiple floating ring bearings, comprising a rectangular base plate (1), columns (2) fixedly connected to the four corners of the base plate (1), a rectangular platform (3) fixedly connected to the upper end of the columns (2), and a plurality of horizontally uniformly arranged rotating supports (4) provided on the platform (3), characterized in that: A cylindrical clamping seat (41) is formed in the middle of the upper end face of the rotating platform (4). A clamping hole (42) is formed inside the clamping seat (41) and penetrates the lower end face of the clamping seat (41). A downwardly extending connecting sleeve (44) is formed on the lower end face of the rotating platform (4) outside the clamping hole (42). The connecting sleeve (44) is connected to the platform (3) by a bearing. The lower end of the connecting sleeve (44) extends out of the platform (3) and is fixedly connected to a gear (10). Adjacent gears (10) mesh together. The upper inner wall of the clamping hole (42) is formed with several recessed holes (43) that penetrate the outer wall of the rotating support (4). A cylindrical anti-reverse post (5) is inserted into the clamping hole (42) of the rotating support (4). Several balls (6) are abutted on the upper outer wall of the anti-reverse post (5). The balls (6) are inserted into the recessed holes (43) of the rotating support (4) and extend out of the outer wall of the rotating support (4). The upper end of the anti-reverse post (5) is formed with a retraction boss (51) opposite to the balls (6), and the lower end extends out of the connecting sleeve (44) and is formed with a plug (52). The plug (52) is inserted and fixed to the linkage plate (7). Vertical clamping bolts (8) are inserted on both sides of the platform (3). The lower end of the clamping bolts (8) is screwed onto the linkage plate (7). On the outer wall of the rotating support (4) on one side of the platform (3), there is an ear plate (45) formed, and a positioning bolt (9) is screwed onto the ear plate (45). Several positioning holes (31) are formed on the platform (3) around the rotating support (4), and the end of the positioning bolt (9) is inserted into the positioning hole (31) of the platform (3).

2. The clamping table for machining the end faces of multiple floating ring bearings according to claim 1, characterized in that: A circular floating ring bearing (11) is placed on the rotating support (4). Several lubricating oil holes (111) are formed on the inner wall of the floating ring bearing (11) and penetrate the outer wall of the floating ring bearing (11). The clamping seat (41) on the rotating support (4) is inserted into the clamping seat (41), and the balls (6) on the clamping seat (41) are respectively locked in the lubricating oil holes (111) of the floating ring bearing (11).

3. A clamping table for machining the end faces of multiple floating ring bearings according to claim 1, characterized in that: The front and rear sides of the middle part of the linkage plate (7) are respectively inserted with vertically inverted T-shaped guide columns (12), and the upper end of the T-shaped guide column (12) is fixed to the platform (3).

4. A clamping table for machining the end faces of multiple floating ring bearings according to claim 1, characterized in that: The rotating support (4) and the connecting sleeve (44) are fitted with a guide bushing (13), and the anti-reverse post (5) is inserted in the guide bushing (13). The radius of the guide bushing (13) is greater than the radius of the retraction boss (51). The difference between the radius of the retraction boss (51) and the radius of the guide bushing (13) is greater than the length of the ball (6) extending out of the rotating support (4).

5. A clamping table for machining the end faces of multiple floating ring bearings according to claim 4, characterized in that: The central axis of the rotating support (4) and the central axis of the anti-reverse column (5) are on the same straight line, and the balls (6) are evenly distributed in a ring around the central axis of the anti-reverse column (5); The top of the retractable boss (51) is formed with a pressure stabilizing hole (53) that penetrates the lower end face of the insert (52).

6. A clamping table for machining the end faces of multiple floating ring bearings according to claim 2, characterized in that: The diameter of the outer wall of the floating ring bearing (11) is smaller than the diameter of the rotating support (4), and the diameter of the inner wall of the floating ring bearing (11) is equal to the diameter of the clamping seat (41).

7. A clamping table for machining the end faces of multiple floating ring bearings according to claim 2, characterized in that: The positioning holes (31) on the platform (3) are all located on the front side of the clamping seat (41), the center distance between the positioning holes (31) and the clamping seat (41) is consistent, and the hole spacing between adjacent positioning holes (31) is equal.

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