CN219359107U - Tool for grinding and polishing inner holes of bearings - Google Patents

Abstract

The utility model discloses a tool for grinding and polishing an inner hole of a bearing, which comprises a vertical plate, wherein a through hole is formed in the surface of the vertical plate, a rotating column is rotatably connected in the through hole through a bearing, a driving mechanism for driving the rotating column to rotate is arranged at the back of the vertical plate, three pull plates which are distributed in a circumferential array and can be contracted are arranged on the side wall of the front end of the rotating column, and grinding columns which are vertically distributed and detachably connected with the end surface of each pull plate are arranged on the end surface of each pull plate.

Description

Tool for grinding and polishing inner holes of bearings

Technical Field

The utility model relates to the technical field of bearing grinding, in particular to a tool for grinding and polishing an inner hole of a bearing.

Background

The bearings of the bearing mill have very high requirements on the roughness of the female standard parts, requiring the surfaces of the female to be mirror-finished. Most of the prior art bearings are manufactured by manually grinding (grinding paste) the inner hole surface, and the defects are low working efficiency, high labor intensity, high labor cost and poor practicability.

Disclosure of Invention

The utility model aims to provide a tool for grinding and polishing an inner hole of a bearing so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a frock for bearing hole lapping and polishing, includes the riser, the surface of riser is provided with the through-hole, be connected with the column spinner through the bearing rotation in the through-hole, the back of riser is provided with the actuating mechanism that is used for driving column spinner pivoted, the front end lateral wall of column spinner is provided with three and is circumference array distribution, and collapsible pull board, every the tip surface of pull board all is provided with rather than perpendicular distribution, detachable connection's column of polishing, just the front side surface of riser is provided with three and is circumference array distribution, is used for carrying out fixed clamping mechanism to the bearing.

As a further scheme of the utility model: the driving mechanism comprises a motor, the motor is fixed on the back of the vertical plate through a motor frame, the rear end of the rotating column extends to the rear side of the vertical plate, and the rear end of the rotating column is connected with the motor through a belt transmission assembly.

As still further aspects of the utility model: the end surface of the drawing plate is provided with a first threaded hole, and the rear end of the polishing column is provided with a stud in threaded connection with the first threaded hole.

As still further aspects of the utility model: the front end of the polishing column is provided with an arc-shaped guide angle.

As still further aspects of the utility model: the front end lateral wall of column spinner is provided with three and is the holding chamber that circumference array distributes, hold width and thickness in chamber and the width and the thickness of pull board identical, just pull board and hold chamber sliding connection, the surface middle part of pull board is provided with a plurality of equidistant fixed orifices that distribute along its length direction, the front end surface of column spinner is located and holds chamber department and be provided with the second screw hole, second screw hole threaded connection has the locking double-screw bolt that can with fixed orifices fixed connection.

As still further aspects of the utility model: limiting edges are arranged on two side walls of the drawing plate, limiting grooves are formed in inner walls of two sides of the accommodating cavity, and the limiting edges are in sliding connection with the limiting grooves.

As still further aspects of the utility model: the clamping mechanism comprises a hydraulic cylinder fixedly connected with the surface of the vertical plate, a fixing plate is arranged at the end part of the hydraulic cylinder, an arc-shaped groove is formed in the surface of the fixing plate, two sliding blocks are arranged on one surface of the fixing plate, which is in contact with the vertical plate, and a sliding groove which is in sliding connection with the sliding blocks is formed in the surface of the vertical plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the sliding connection of the drawing plate and the accommodating cavity is arranged, so that the length of the drawing plate extending out is convenient to adjust, the diameter of an external circle formed by three polishing columns is convenient to adjust flexibly, the bearings with different inner diameters are convenient to adjust according to the bearings with different inner diameters, the bearings with different inner diameters are polished and polished, the flexibility and the utilization rate of the device are greatly improved, and the drawing plate is adjusted by the first threaded holes, the fixing holes and the locking studs, so that the distances of the three drawing plates adjusted each time are the same, the operation is quicker, and the working efficiency is greatly improved.

2. Through the setting of the guide angle on the post of polishing for the guide bearing cover is established in the outside of three post of polishing for the inner wall contact of three post of polishing and bearing all, effective guide installation bearing cover and polishing are polished.

Drawings

Fig. 1 is a schematic structural diagram of a tool for grinding and polishing an inner hole of a bearing.

Fig. 2 is a schematic structural diagram of another view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a schematic structural view of a fixing plate in a fixture for grinding and polishing inner holes of bearings.

Fig. 5 is a schematic structural view of a rotary column in a tool for grinding and polishing an inner hole of a bearing.

In the figure: 1. a vertical plate; 2. a spin column; 3. a drawing plate; 4. polishing the column; 5. a hydraulic cylinder; 6. a fixing plate; 7. a chute; 8. a motor; 9. an arc-shaped groove; 10. a slide block; 11. limit edges; 12. a receiving chamber; 13. a limit groove; 14. a first threaded hole; 15. a fixing hole; 16. a second threaded hole; 17. locking the stud.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a tool for grinding and polishing inner holes of bearings in the embodiment of the utility model comprises a vertical plate 1, wherein a through hole is arranged on the surface of the vertical plate 1, a rotary column 2 is rotatably connected in the through hole through a bearing, a driving mechanism for driving the rotary column 2 to rotate is arranged at the back of the vertical plate 1, the driving mechanism comprises a motor 8, the motor 8 is fixed at the back of the vertical plate 1 through a motor frame, the rear end of the rotary column 2 extends to the rear side of the vertical plate 1, the rear end of the rotary column 2 is connected with the motor 8 through a belt transmission assembly, the rotary column 2 is driven to rotate under the action of the belt transmission assembly by starting the motor 8, so that the rotary column 2 drives three polishing columns 4 to rotate, the three polishing columns 4 polish the inner wall of the bearing, three pull plates 3 which are distributed in a circumferential array and can shrink are arranged on the front end side wall of the rotary column 2, the end surface of each drawing plate 3 is provided with polishing columns 4 which are vertically distributed and detachably connected with the drawing plates, the end surface of each drawing plate 3 is provided with a first threaded hole 14, the rear end of each polishing column 4 is provided with a stud which is in threaded connection with the first threaded hole 14, the rear end of each polishing column 4 is in threaded connection with the drawing plate 3 through the stud, the polishing columns 4 are convenient to replace, the front ends of the polishing columns 4 are provided with arc-shaped guide angles, the guide angles on the polishing columns 4 are used for guiding bearing sleeves to be arranged on the outer sides of the three polishing columns 4, the three polishing columns 4 are in contact with the inner walls of bearings, bearing sleeves are effectively guided and installed for polishing, the side wall of the front end of each rotating column 2 is provided with three containing cavities 12 which are distributed in a circumferential array, and the width and the thickness of each containing cavity 12 are matched with the width and the thickness of each drawing plate 3, and pull plate 3 and hold chamber 12 sliding connection, the surface middle part of pull plate 3 is provided with a plurality of equidistant fixed orifices 15 that distribute along its length direction, the front end surface of column 2 is located and holds chamber 12 department and be provided with second screw hole 16, second screw hole 16 internal thread connection has can with fixed orifices 15 fixed connection's locking double-screw bolt 17, through setting up pull plate 3 and hold chamber 12 sliding connection, be convenient for adjust the length that pull plate 3 stretches out, thereby be convenient for carry out nimble regulation to the circumscribed circle diameter that three post 4 constitutes, thereby be convenient for adjust according to the bearing of different internal diameter sizes, realize polishing the bearing of different internal diameter sizes and polish, flexibility and the utilization ratio of device have been improved greatly, and through being provided with first screw hole 14, fixed orifices 15 and locking double-screw bolt 17 are adjusted pull plate 3, be convenient for make the distance that three pull plate 3 adjusted at every time the same, make during operation more swiftly, both sides wall of pull plate 3 all is provided with spacing limit 11, the both sides inner wall of holding chamber 12 all is provided with spacing groove 13, limit 11 and limit groove 13 have been reached to the spacing groove, good effect when the limit plate is connected to spacing groove 13, good limit plate 3 has been moved to the spacing between the limit plate 13.

The front side surface of riser 1 is provided with three and is circumference array distribution, be used for carrying out fixed clamping mechanism to the bearing, clamping mechanism includes the pneumatic cylinder 5 with riser 1 fixed surface connection, the tip of pneumatic cylinder 5 is provided with fixed plate 6, the surface of fixed plate 6 is provided with arc wall 9, and fixed plate 6 and riser 1 contact one side is provided with two sliders 10, riser 1's surface is provided with the spout 7 with slider 10 sliding connection, after the outside with the bearing housing at three post 4 of polishing, start three pneumatic cylinder 5, thereby the surface contact of three fixed plate 6 all with the bearing realizes pressing from both sides tightly fixedly to the bearing, make the column 2 be in fixed state when rotating, thereby realize the lapping and polishing to the bearing hole.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. A tool for grinding and polishing inner holes of bearings is characterized by comprising a vertical plate (1), wherein through holes are formed in the surface of the vertical plate (1), a rotating column (2) is connected in the through holes through bearing rotation, a driving mechanism used for driving the rotating column (2) to rotate is arranged at the back of the vertical plate (1), three drawing plates (3) which are distributed in a circumferential array and can be contracted are arranged on the front end side wall of the rotating column (2), grinding columns (4) which are vertically distributed and detachably connected with the end surfaces of the drawing plates (3) are arranged on the end surfaces of the drawing plates, and three clamping mechanisms which are distributed in a circumferential array and used for fixing the bearings are arranged on the front side surface of the vertical plate (1).

2. The tool for grinding and polishing of inner holes of bearings according to claim 1, wherein the driving mechanism comprises a motor (8), the motor (8) is fixed on the back of the vertical plate (1) through a motor frame, the rear end of the rotating column (2) extends to the rear side of the vertical plate (1), and the rear end of the rotating column (2) is connected with the motor (8) through a belt transmission assembly.

3. Tool for grinding and polishing inner holes of bearings according to claim 1, characterized in that the end surface of the drawing plate (3) is provided with a first threaded hole (14), and the rear end of the grinding column (4) is provided with a stud in threaded connection with the first threaded hole (14).

4. Tool for grinding and polishing inner holes of bearings according to claim 1, characterized in that the front end of the grinding column (4) is provided with an arc-shaped guiding angle.

5. The tool for grinding and polishing inner holes of bearings according to claim 1, wherein three accommodating cavities (12) distributed in a circumferential array are formed in the front end side wall of the rotary column (2), the width and the thickness of the accommodating cavities (12) are matched with those of the drawing plate (3), the drawing plate (3) is slidably connected with the accommodating cavities (12), a plurality of fixing holes (15) distributed at equal intervals are formed in the middle of the surface of the drawing plate (3) along the length direction of the middle, a second threaded hole (16) is formed in the position, located in the accommodating cavities (12), of the front end surface of the rotary column (2), and locking studs (17) capable of being fixedly connected with the fixing holes (15) are connected with the second threaded holes (16) in an internal threaded mode.

6. The tool for grinding and polishing of inner holes of bearings according to claim 5, wherein limiting edges (11) are arranged on two side walls of the drawing plate (3), limiting grooves (13) are arranged on two side inner walls of the accommodating cavity (12), and the limiting edges (11) are slidably connected with the limiting grooves (13).

7. The tool for grinding and polishing of inner holes of bearings according to claim 1, wherein the clamping mechanism comprises a hydraulic cylinder (5) fixedly connected with the surface of the vertical plate (1), a fixing plate (6) is arranged at the end part of the hydraulic cylinder (5), an arc-shaped groove (9) is formed in the surface of the fixing plate (6), two sliding blocks (10) are arranged on one surface of the fixing plate (6) contacted with the vertical plate (1), and sliding grooves (7) connected with the sliding blocks (10) in a sliding mode are formed in the surface of the vertical plate (1).