Centring shaft for fine grinding of inner groove of deep groove ball bearing

Abstract

The utility model provides a centering shaft for fine grinding of an inner groove of a deep groove ball bearing, and relates to the technical field of deep groove ball bearing equipment. Comprising a sleeve, a pressing plate is mounted on one side of the sleeve, the sleeve and the reinforcing sleeve are connected by arranging the sleeve, the reinforcing sleeve, an external connecting rod and a reinforcing mounting rod, operation continues, the problem that the inner diameter of a workpiece is scratched is fundamentally solved in a combined rotating mode, the sleeve can enter the workpiece more easily, and therefore the chamfer and the end face of the workpiece are protected; the sleeve and the reinforcing sleeve are matched and connected for use, so that the overall use range is wide, the improved combined centering shaft can properly select parts according to the machining size of a workpiece, only part of the parts in the inner diameter sleeving assembly are replaced within the proper workpiece size range, the adjusting time is shortened, the machining efficiency is improved, and the machining cost is reduced. The whole device is simple and easy to operate, no power equipment is used for auxiliary operation, and the whole installation and use cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep groove ball bearing equipment technical field especially, relates to a kind of deep groove ball bearing lapping inner groove with centering axle. BACKGROUND

[0002] The bearing superfinishing not only can obtain lower roughness, but also the superfinishing inner groove can eliminate the fulcrum trace when grinding;At the same time, by the cooperation of the lapping machine and the same groove-shaped oil stone, the oil film can be formed on the channel surface, and the low noise performance of the bearing is improved, etc.The centering axle is used as the tooling aid of superfinishing inner channel, and has a very important influence on bearing production.At present, the company uses the centering axle of ceramic and metal bonding mode, and the ceramic can provide support for bearing workpiece, but the ceramic is easy to break, difficult to replace, long in manufacturing cycle and high in cost.

[0003] 1) In the process of grinding of the superfinishing machine, in order to reduce grinding deformation and heat dissipation, and also to have a cleaning effect, grinding fluid is used for injection.Due to the fact that the ceramic block is in the environment of erosion of grinding fluid for a long time, and is subjected to external force in the process of grinding, the ceramic block is easy to fall off, and the ceramic block needs to be repaired, re-bonded and processed, which is extremely difficult.

[0004] 2) Sometimes, improper operation occurs in the process of debugging machine tool, so that the front end of the centering axle base body collides with the tire pad, causing the ceramic block to break, and if not checked in time, the inner diameter of the bearing will be scratched, and needs to be returned for repair.

[0005] 3) Different models of deep groove ball bearings often need to customize the centering axle base body and ceramic block of corresponding size, which causes problems such as multiple processing procedures, long processing time and high processing cost.

[0006] Therefore, the utility model provides a kind of deep groove ball bearing lapping inner groove with centering axle. UTILITY MODEL CONTENTS

[0007] The utility model aims at solving the shortcomings in the prior art, and provides a kind of deep groove ball bearing lapping inner groove with centering axle.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of deep groove ball bearing lapping inner groove with centering axle, including sleeve,

[0009] One side of the sleeve is provided with a pressing plate, and the centering axle base body is located on the side of the sleeve away from the pressing plate;

[0010] One side of the centering shaft base body is provided with a reinforcing sleeve, one side of the reinforcing sleeve is provided with two fixing discs, one side of one of the two fixing discs is provided with a connecting seat, and the outer side of the connecting seat is provided with an outer mounting seat;

[0011] One side of the outer mounting seat is provided with an external connecting rod, and the external connecting rod is located on the side of the outer mounting seat away from the connecting seat.

[0012] The inside of the reinforcing sleeve is provided with a first positioning rod, one end of the first positioning rod penetrates through the two fixing discs and is connected with a threaded block, one side of the threaded block is provided with a second positioning rod, the second positioning rod is located on the side of the threaded block away from the fixing disc, and the other end of the second positioning rod extends to the connecting seat and is connected with the outer mounting seat.

[0013] As a preferred embodiment, the outer side of the outer mounting seat is provided with equidistantly distributed threaded grooves, which facilitate manual holding during use and reduce the risk of accidental slipping, thereby achieving a certain degree of protection effect. The two sides of the sleeve are provided with compression bearings, and the centering shaft base body and the reinforcing sleeve are provided with a gasket.

[0014] The technical effect of the above further scheme is that the threaded grooves are provided on the outer side of the outer mounting seat to facilitate manual holding during use, thereby reducing the risk of accidental slipping and achieving a certain degree of protection effect.

[0015] As a preferred embodiment, the inside of the pressing plate is provided with a first installation inner cavity, and the inside of the pressing plate and around the first installation inner cavity are provided with equidistantly distributed installation grooves. The installation grooves are circularly distributed in the inside of the pressing plate. The centering shaft base body is provided in the inside of the pressing plate to assist in the installation of the sleeve. The inside of the two fixing discs is provided with a second installation inner cavity to facilitate the normal installation of the first positioning rod. The two fixing discs are provided with a sealing ring therebetween. The inside of the reinforcing sleeve is provided with a third installation inner cavity to facilitate the installation of the reinforcing installation rod. The sealing ring between the two fixing discs improves the sealing performance of the equipment.

[0016] The technical effect of the above further scheme is that the installation grooves are circularly distributed in the inside of the pressing plate, and the centering shaft base body is provided in the inside of the pressing plate to assist in the installation of the sleeve.

[0017] As a preferred implementation form, the reinforcing mounting rod is arranged between the centering shaft base and the reinforcing sleeve, one end of the reinforcing mounting rod extends into the reinforcing sleeve, the other end of the reinforcing mounting rod is provided with a positioning nut, the outer side of the positioning nut is provided with a fixed clamping block, and the fixed clamping block is connected with the gasket.

[0018] The technical effect of the further scheme is that the centering shaft base and the reinforcing sleeve are reinforced and connected through the fixed clamping block and the reinforcing mounting rod, and the flexibility of equipment use is improved.

[0019] As a preferred implementation form, the first mounting inner cavity is internally provided with the centering shaft base, one end of the centering shaft base is connected with the sleeve, and the sleeve and the first mounting inner cavity are reinforced and mounted through the centering shaft base.

[0020] The technical effect of the further scheme is that the sleeve and the first mounting inner cavity are reinforced and mounted through the centering shaft base.

[0021] Compared with the prior art, the advantages and positive effects of the utility model lie in that,

[0022] Through the sleeve, the reinforcing sleeve, the external connecting rod and the reinforcing mounting rod, a stepped shaft is left at the front end of the centering shaft base when in use, then the sleeve, the pressing plate, the gasket and other equipment sizes are designed according to the size of the machined workpiece, and then the inner diameter sleeve is sent to the inner diameter of the workpiece during assembly, the bearing is pressed against the workpiece end face, the sleeve rotates with the workpiece when the workpiece rotates, the positioning of the rotating bearing is kept fixed through the cooperation of the gasket and the pressing plate, the support function of the fine grinding inner channel can be realized, the reinforcing sleeve and the centering shaft base are connected when the operation in different operating environments is needed, that is, the length of the overall equipment is needed, the connection of the sleeve and the reinforcing sleeve is realized, and then the operation is continued, the combination rotating mode is adopted to fundamentally solve the problem of workpiece inner diameter scratch, the sleeve is more easily put into the workpiece, and thus the chamfer and the end face of the workpiece are protected, the overall use range is wide through the cooperation and connection of the sleeve and the reinforcing sleeve, the improved combined centering shaft can appropriately select parts according to the machining size of the workpiece, and only part of the parts in the inner diameter sleeve assembly needs to be replaced in the appropriate workpiece size range, the adjustment time is reduced, the machining efficiency is improved, the overall equipment is simple and easy to operate, no power equipment is used for auxiliary operation, and the overall installation and use cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model provides a kind of deep groove ball bearing fine grinding inner ditch with the overall structure diagram of centering shaft Figure 1 ;

[0024] Figure 2A schematic diagram of the overall structure of a centering shaft for precision grinding of the inner groove of a deep groove ball bearing provided by this utility model. Figure 2 ;

[0025] Figure 3 An exploded view of the reinforcing sleeve of a centering shaft for precision grinding of the inner groove of a deep groove ball bearing, provided by this utility model;

[0026] Figure 4 This utility model provides a centering shaft for precision grinding of the inner groove of a deep groove ball bearing. Figure 3 Enlarged schematic diagram of the structure at point A in the diagram.

[0027] Legend:

[0028] 1. Sleeve; 11. Pressure plate; 12. Clamping bearing; 13. Centering shaft base; 14. Mounting groove; 15. First mounting cavity; 16. Washer;

[0029] 2. Reinforcing sleeve; 21. Fixing plate; 22. Sealing ring; 23. Threaded locking block; 24. First positioning rod; 25. Second mounting cavity; 26. Second positioning rod; 27. Connecting seat; 28. External mounting seat; 29. ​​Threaded groove;

[0030] 3. External connecting rod;

[0031] 4. Reinforcing mounting rod; 41. Positioning nut; 42. Fixing block; 43. Third mounting cavity. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figures 1-4 As shown, this embodiment provides a technical solution: a centering shaft for precision grinding of the inner groove of a deep groove ball bearing, including a sleeve 1, a pressure plate 11 installed on one side of the sleeve 1, and a centering shaft base 13 installed on one side of the sleeve 1, the centering shaft base 13 being located on the side of the sleeve 1 away from the pressure plate 11;

[0034] A reinforcing sleeve 2 is installed on one side of the centering shaft base 13. Two fixing discs 21 are installed on one side of the reinforcing sleeve 2. The two fixing discs 21 are located on the side of the reinforcing sleeve 2 away from the centering shaft base 13. A connecting seat 27 is installed on one side of one of the fixing discs 21. An external mounting seat 28 is installed on the outside of the connecting seat 27. An external connecting rod 3 is installed on one side of the external mounting seat 28. The external connecting rod 3 is located on the side of the external mounting seat 28 away from the connecting seat 27.

[0035] In this solution, a first positioning rod 24 is installed inside the reinforcing sleeve 2. One end of the first positioning rod 24 passes through the two fixing plates 21 and is connected to a threaded locking block 23. A second positioning rod 26 is installed on one side of the threaded locking block 23. The second positioning rod 26 is located on the side of the threaded locking block 23 away from the fixing plates 21. The other end of the second positioning rod 26 extends to the connecting seat 27 and is connected to the outer mounting seat 28. The whole device is simple and easy to operate, and no power equipment is used to assist in the operation, which saves the overall installation and use costs.

[0036] Going further, such as Figures 1-4 As shown: In this solution, the outer mounting base 28 has equally spaced threaded grooves 29 on its outer side. The threaded grooves 29 on the outer side of the outer mounting base 28 facilitate manual gripping during use, thereby reducing the possibility of accidental slippage and providing a certain degree of protection.

[0037] In this design, each of the two fixed plates 21 has a second mounting cavity 25 inside. The first positioning rod 24 is installed normally by using the second mounting cavity 25 inside the fixed plate 21. A sealing ring 22 is installed between the two fixed plates 21. A third mounting cavity 43 is opened inside the reinforcing sleeve 2. The reinforcing mounting rod 4 is installed by using the third mounting cavity 43 inside the reinforcing sleeve 2. The sealing performance of the equipment is improved by using the sealing ring 22 between the two fixed plates 21.

[0038] Going further, such as Figures 1-2 As shown: In this scheme, clamping bearings 12 are installed on both sides of the sleeve 1, and washers 16 are installed between the centering shaft base 13 and the reinforcing sleeve 2.

[0039] In this scheme, the pressure plate 11 has a first mounting cavity 15 inside, and mounting grooves 14 are equally distributed inside the pressure plate 11 and around the first mounting cavity 15. Multiple mounting grooves 14 are distributed in a ring shape inside the pressure plate 11. The sleeve 1 is assisted in installation by a centering shaft base 13 inside the pressure plate 11.

[0040] Going further, such as Figures 1-3As shown, in this scheme, a reinforcing mounting rod 4 is installed between the centering shaft base 13 and the reinforcing sleeve 2. One end of the reinforcing mounting rod 4 extends into the interior of the reinforcing sleeve 2, and the other end of the reinforcing mounting rod 4 is equipped with a positioning nut 41. A fixing block 42 is installed on the outside of the positioning nut 41. The fixing block 42 is connected to the washer 16. The fixing block 42 and the reinforcing mounting rod 4 cooperate to reinforce the connection between the centering shaft base 13 and the reinforcing sleeve 2, thereby improving the flexibility of equipment use.

[0041] Going further, such as Figures 1-2 As shown, in this scheme, a centering shaft base 13 is installed inside the first mounting cavity 15, and one end of the centering shaft base 13 is connected to the sleeve 1.

[0042] In this scheme, the sleeve 1 and the first mounting cavity 15 are reinforced and installed by the centering shaft base 13.

[0043] Working principle:

[0044] like Figures 1-4 As shown:

[0045] By setting up sleeve 1, reinforcing sleeve 2, external connecting rod 3 and reinforcing mounting rod 4, the threaded groove 29 on the outside of the outer mounting base 28 facilitates manual gripping during use, thereby reducing the possibility of accidental slippage and providing a certain degree of protection.

[0046] The reinforcement mounting rod 4 is installed by providing a third mounting cavity 43 inside the reinforcement sleeve 2, and the sealing performance of the equipment is improved by installing a sealing ring 22 between the two fixed plates 21.

[0047] The sleeve 1 is assisted in installation by a centering shaft base 13 provided inside the pressure plate 11.

[0048] The centering shaft base 13 and the reinforcing sleeve 2 are reinforced and connected by the fixing block 42 and the reinforcing mounting rod 4, which improves the flexibility of equipment use. The sleeve 1 and the first mounting cavity 15 are reinforced and installed by the centering shaft base 13.

[0049] A stepped shaft is left at the front end of the centering shaft base 13. Then, based on the dimensions of the workpiece being machined, the dimensions of the sleeve 1, pressure plate 11, washer 16, etc., are designed accordingly. During assembly, the inner diameter sleeve is then placed onto the inner diameter of the workpiece, and the clamping bearing 12 presses against the workpiece end face. When the workpiece rotates, the sleeve 1 rotates with it. The washer 16 and pressure plate 11 work together to maintain fixation and limit the positioning of the rotating bearing, thus achieving the supporting function of the precision-machined inner groove. When operation is required in different working environments, i.e., when there is a requirement for the overall equipment length, the reinforcing sleeve 2 and the centering shaft base 13 are connected to achieve the connection between the sleeve 1 and the... The connection of the reinforcing sleeve 2 allows for continued operation. The combined rotation method fundamentally solves the problem of scratches on the inner diameter of the workpiece, making it easier for the sleeve 1 to enter the workpiece, thereby protecting the chamfer and end face of the workpiece. The combination of sleeve 1 and reinforcing sleeve 2 makes the overall application range wide. The improved combined centering shaft can appropriately select parts according to the processing size of the workpiece. Within the appropriate workpiece size range, only some parts of the inner diameter kit need to be replaced, reducing adjustment time and improving processing efficiency. The overall equipment is simple and easy to operate, and no electrical equipment is used for auxiliary operation, saving overall installation and use costs.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A centering shaft for precision grinding of the inner groove of a deep groove ball bearing, comprising a sleeve (1), characterized in that, A pressure plate (11) is installed on one side of the sleeve (1), and a centering shaft base (13) is installed on one side of the sleeve (1). The centering shaft base (13) is located on the side of the sleeve (1) away from the pressure plate (11). A reinforcing sleeve (2) is installed on one side of the centering shaft base (13). Two fixing discs (21) are installed on one side of the reinforcing sleeve (2). The two fixing discs (21) are located on the side of the reinforcing sleeve (2) away from the centering shaft base (13). A connecting seat (27) is installed on one side of one of the fixing discs (21). An external mounting seat (28) is installed on the outside of the connecting seat (27). An external connecting rod (3) is installed on one side of the external mounting base (28), and the external connecting rod (3) is located on the side of the external mounting base (28) away from the connecting base (27); The reinforcing sleeve (2) is equipped with a first positioning rod (24). One end of the first positioning rod (24) passes through two fixed plates (21) and is connected to a threaded screw block (23). A second positioning rod (26) is installed on one side of the threaded screw block (23). The second positioning rod (26) is located on the side of the threaded screw block (23) away from the fixed plate (21). The other end of the second positioning rod (26) extends to the connecting seat (27) and is connected to the outer mounting seat (28).

2. The centering shaft for precision grinding of the inner groove of a deep groove ball bearing according to claim 1, characterized in that: The outer mounting base (28) has equally spaced threaded grooves (29) on its outer side.

3. The centering shaft for precision grinding of the inner groove of a deep groove ball bearing according to claim 1, characterized in that: Both sides of the sleeve (1) are fitted with clamping bearings (12), and washers (16) are installed between the centering shaft base (13) and the reinforcing sleeve (2).

4. The centering shaft for precision grinding of the inner groove of a deep groove ball bearing according to claim 3, characterized in that: The pressure plate (11) has a first mounting cavity (15) inside. The pressure plate (11) has mounting grooves (14) that are evenly distributed around the first mounting cavity (15). The mounting grooves (14) are distributed in a ring shape inside the pressure plate (11).

5. The centering shaft for precision grinding of the inner groove of a deep groove ball bearing according to claim 4, characterized in that: The two fixed plates (21) each have a second mounting cavity (25) inside, and a sealing ring (22) is installed between the two fixed plates (21). The reinforcing sleeve (2) has a third mounting cavity (43) inside.

6. The centering shaft for precision grinding of the inner groove of a deep groove ball bearing according to claim 1, characterized in that: A reinforcing mounting rod (4) is installed between the centering shaft base (13) and the reinforcing sleeve (2). One end of the reinforcing mounting rod (4) extends into the interior of the reinforcing sleeve (2), and a positioning nut (41) is installed at the other end of the reinforcing mounting rod (4). A fixing block (42) is installed on the outside of the positioning nut (41), and the fixing block (42) is connected to the washer (16).

7. The centering shaft for precision grinding of the inner groove of a deep groove ball bearing according to claim 4, characterized in that: The first mounting cavity (15) is equipped with a centering shaft base (13), one end of which is connected to the sleeve (1).

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