Paired cold grinding die for bearing rings

Abstract

The utility model discloses a paired cold grinding die for bearing rings, which belongs to the technical field of bearing processing equipment and comprises a workbench, a rectangular groove is arranged at the top of the workbench, nozzles are further fixed on the inner wall of the groove, the nozzles are uniformly arranged on the inner side wall of the groove at equal intervals, and four support legs are welded at the bottom of the workbench; the storage groove is used for bearing machining, a through hole is formed in the inner bottom wall of the storage groove, and the storage groove is formed in the inner bottom of the groove; the top of the fixing frame is connected with two electric push rods capable of being adjusted in a telescopic mode through screws, moving parts of the two electric push rods penetrate through the fixing frame and are both fixed to the top of the cold rolling device, and the side wall of the cold rolling device is movably connected with the side wall of the fixing frame. According to the cooling device, the bearing subjected to cold rolling machining can be cooled, used cooling liquid can be recycled, treated and recycled, waste of resources is reduced, and the machining speed of the device is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing processing equipment, in particular to a pair of cold rolling dies for bearing rings. Background Technique

[0002] A bearing is an important component in mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. When manufacturing a bearing, generally to ensure the machining accuracy, a through-hole convenient for inner diameter machining is reserved during the bearing manufacturing process. According to the use state and working conditions of the bearing, a suitable machining method will be selected. The existing machining equipment for cold ring rolling of bearings directly machines the inner diameter of the bearing at normal temperature and expands the inner diameter of the bearing by means of friction, etc., which will cause the overall temperature of the bearing to rise. Therefore, it is necessary to circulate coolant to maintain the temperature of the bearing. However, the existing equipment usually does not have this structure, resulting in intermittent machining of the bearing during processing, reducing the processing efficiency of the device.

[0003] After retrieval, for example, (authorized announcement number CN217370258U) a pair of cold rolling forming dies for offset groove ball bearing rings, including an expanding wheel and a rolling mandrel. The expanding wheel is located above the rolling mandrel, and a cavity for fixing the forging is provided at the lower part of the expanding wheel; corresponding rolling grooves are provided on the rolling mandrel below the cavity. Two annular protrusions for raceway forming are provided in the rolling grooves, and the two annular protrusions are symmetrically arranged along the center of the cavity. The highest points R of the two annular protrusions are close to each other and are not on the width middle plane of the annular protrusion. This device solves the problem that the inner diameter size of the bearing cannot be stabilized when the existing equipment is used. However, this device cannot circulate and cool the bearing during cold ring rolling processing, resulting in a continuous increase in the overall temperature of the bearing. In order to maintain the overall performance of the bearing structure, intermittent machining is required, reducing the processing rate of the device. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pair of cold rolling dies for bearing rings to solve the problems put forward in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pair of cold rolling dies for bearing rings, including:

[0006] A workbench, on the top of the workbench, there is a rectangular groove, and nozzles for coolant spraying are fixed on the inner wall of the groove. The nozzles are evenly arranged at equal intervals on the inner side wall of the groove, and four support feet are welded at the bottom of the workbench;

[0007] A placement groove for bearing processing, a through-hole for convenient coolant circulation is provided on the inner bottom wall of the placement groove, and the placement groove is arranged at the inner bottom of the groove;

[0008] Fixing frame, the top of the fixing frame is screw-connected with two telescopically adjustable electric push rods, the moving parts of the two electric push rods penetrate through the fixing frame and are fixed to the top of the cold ring rolling device, and the side wall of the cold ring rolling device is movably connected to the side wall of the fixing frame.

[0009] As a preferred embodiment, two symmetric T-shaped slide rails are provided at the bottom of the workbench, and the inner walls of the two slide rails are slidably connected with sliding plates that fit them.

[0010] As a preferred embodiment, the ends of the two sliding plates are welded to the top of the recycling box, and a filter box for filtering the recycled coolant is also fixedly connected to the top of the recycling box by bolts. An inlet groove for facilitating the flow of the coolant is provided at the top of the filter box.

[0011] As a preferred embodiment, a filter plate for filtering the coolant is fixed to the inner wall of the filter box, and a through hole communicating with the recycling box is also provided at the bottom of the filter box.

[0012] As a preferred embodiment, four symmetric fixing blocks are welded to the side wall of the recycling box, each fixing block is threadedly connected with an adjustable threaded rod, and an arc-shaped block for facilitating force application is welded to the top of the threaded rod.

[0013] As a preferred embodiment, the bottom of the threaded rod is rotatably connected with a brake caster, and the side of the brake caster is not connected to the side wall of the recycling box.

[0014] As a preferred embodiment, a connecting block with a drain hole is also fixed to one side of the recycling box. A threaded hole for facilitating connection is provided at the bottom of the connecting block, and a filter for secondary filtration is connected to the threaded hole.

[0015] Compared with the prior art, the technical effects and advantages of the present utility model:

[0016] In this paired cold rolling die for bearing rings, a groove is provided at the top of the workbench, and nozzles that are easy to disassemble are evenly installed on the inner wall of the groove. The nozzles will spray the coolant through the pipelines arranged inside the workbench, so as to cool down the bearing placed inside the placement groove during cold ring rolling, avoiding excessive temperature during the inner diameter processing of the bearing and damaging the internal structure and the rigidity of the overall structure of the bearing, and enabling continuous processing of the bearing. Compared with the problem that the prior equipment does not perform cooling during the cold ring rolling processing of the bearing, this device improves the processing rate of the device.

[0017] The paired cold rolling die for bearing rings is provided with a slide rail on the top of the workbench. The inner wall of the slide rail is slidably connected with a slide plate. The end of the slide plate is welded to the top of the recycling box. A filter box is also fixed on the top of the recycling box. A filter plate for filtering the used coolant is arranged inside the filter box. Through holes penetrating through the top and bottom of the filter box are provided to facilitate the circulation of the coolant. A fixing block is welded to the side wall of the recycling box. A threaded rod is threadedly connected to the fixing block. The bottom of the threaded rod is rotatably connected with a braking caster wheel that is not connected to the side wall of the recycling box, facilitating the connection and separation of the recycling box from the bottom of the workbench. A drain hole with a square block is also provided on the side wall of the recycling box. A control valve is arranged on the drain hole. A threaded hole is arranged at the bottom of the square block, and a filter is connected to the threaded hole. The recycled coolant is filtered again through the filter to reduce the impurities contained in the coolant and improve the practicability of the device.

[0018] The device solves the problem that the existing equipment cannot cool the bearings undergoing cold ring rolling during use, enabling it to work continuously and improving the processing efficiency of the device. Brief Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a paired cold rolling die for bearing rings in an embodiment of the present invention;

[0021] Figure 2 Structural schematic diagram of the workbench in an embodiment of the present invention;

[0022] Figure 3 Structural schematic diagram of the recycling box in an embodiment of the present invention;

[0023] Figure 4 For the present invention Figure 2 Half-sectional view of the filter box in the A-A direction in the present invention;

[0024] Figure 5 Structural schematic diagram of the connection of the drain hole in an embodiment of the present invention.

[0025] Explanation of the reference numerals in the drawings:

[0026] In the figure: 1, workbench; 2, fixed block; 3, recycling bin; 4, supporting feet; 5, fixing bracket; 6, electric push rod; 7, cold ring rolling device; 8, nozzle; 9, slide rail; 10, placing groove; 11, groove; 12, braking caster; 13, threaded rod; 14, sliding plate; 15, filter box; 16, drain hole; 17, filter plate; 18, filter. Detailed implementation manners

[0027] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0028] Unless otherwise defined, the directions such as up, down, left, right, front, back, inside and outside involved in this article are based on the up, down, left, right, front, back, inside and outside directions in the figures shown by the present utility model, and are hereby explained together.

[0029] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., depending on actual needs.

[0030] Embodiment

[0031] As Figures 1 to 5 shown, the present application aims to solve the problem that the existing device for cold ring rolling processing of bearings cannot cool the bearings during processing. Therefore, for the cold ring rolling device 7 of bearings, the existing technology and structure are adopted, and no specific description will be made herein.

[0032] This embodiment includes:

[0033] A workbench 1, on the top of the workbench 1, there is a rectangular groove 11. The inner wall of the groove 11 is also fixed with a nozzle 8 for spraying coolant. Inside the workbench 1, there is a pipeline facilitating the flow of coolant, and on one side of the workbench 1, there is a connecting pipe facilitating connection. The connecting pipe is connected to the output end of a water pump through a water pipe, facilitating the extraction of coolant by the action of the water pump, and spraying the coolant out under the action of the nozzle 8, so as to cool the bearings processed inside the groove 11, thereby avoiding the problems of processing interruption or damage to the internal structure of the bearings caused by the overall temperature rise of the bearings during cold ring rolling processing, and improving the practicability of the device.

[0034] The nozzles 8 are evenly arranged at equal intervals on the inner side wall of the groove 11. Through the evenly arranged nozzles 8, the bearings inside the placement groove 10 arranged at the bottom of the groove 11 are sprayed for cooling. A through hole penetrating the workbench 1 is provided at the bottom of the placement groove 10. The setting of the through hole facilitates the circulation of the coolant inside the placement groove 10. Four supporting feet 4 are welded to the bottom of the workbench 1. The setting of the four supporting feet 4 can separate the workbench 1 from the ground, thus facilitating the machining of the bearings and reducing the fatigue of the staff during operation.

[0035] A fixing frame 5. Two telescopic and adjustable electric push rods 6 are screwed to the top of the fixing frame 5. The moving parts of the two electric push rods 6 penetrate the fixing frame 5 and are both fixed to the top of the cold ring rolling device 7. The cold ring rolling device 7 includes a ring rolling wheel and a rolling mandrel. By the telescopic movement of the moving parts of the two electric push rods 6, the cold ring rolling device 7 is driven to move inside the fixing frame 5, completing the movement of the cold ring rolling device 7, facilitating machining. The side wall of the cold ring rolling device 7 is movably connected to the side wall of the fixing frame 5.

[0036] Two slide rails 9 are also provided at the bottom of the workbench 1. A slide plate 14 is slidably connected to the slide rails 9. The end of the slide plate 14 is fixed to the top of the recycling box 3. A filter box 15 is fixed to the top of the recycling box 3 by bolts. A filter plate 17 is fixed to the inner wall of the filter box 15. The filter plate 17 can filter the used coolant for recycling, reducing the waste of resources. Through grooves are provided at the top and bottom of the filter box 15. The collection and filtration of the coolant are completed through the provided through grooves.

[0037] A fixing block 2 is welded to the side wall of the recycling box 3. A threaded rod 13 is threadedly connected to the fixing block 2. An arc-shaped block is welded to the end of the threaded rod 13. A brake caster 12 is rotatably connected to the other end of the threaded rod 13. The brake caster 12 does not abut against the side wall of the recycling box 3. By applying force to the arc-shaped block, the threaded rod 13 is driven to move on the fixing block 2, and the connected brake caster 12 can be adjusted in height, so that the recycling box 3 can be connected to and detached from the bottom of the workbench 1 according to the actual usage situation, facilitating use.

[0038] A drain hole 16 with a square block is provided on one side of the recycling box 3. A control valve is arranged on the periphery of the drain hole 16. In order to further reduce the amount of impurities in the recycled coolant, a threaded hole is provided at the bottom of the square block. The threaded hole is connected to a filter 18. The filter 18 is detachably connected, facilitating regular cleaning and replacement, ensuring the working quality of the filter 18. And it is connected to a water tank equipped with a water pump through a connecting pipe connected to the drain hole 16. The water tank stores the coolant, improving the filtering quality of the device.

[0039] The electric push rod 6, the cold ring rolling device 7, and the filter 18 are all conventional instruments. Their working principles, dimensions, and models are not related to the functions of this application, so no detailed description will be given. The control method of this utility model is controlled by a controller. The control circuit of the controller can be achieved by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in this field. Moreover, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection of this utility model will not be further explained in detail.

[0040] Working principle

[0041] For this paired cold rolling die for bearing rings, when using this device, place the bearing for processing through the groove 11 and the placement groove 10. Then, control the water pump to work, and the coolant stored in the water tank is output under the action of the water pump, and through the connected water pipes, pipelines, and nozzles 8, the spraying of the coolant is completed. At this time, control the expansion and contraction of the moving part of the electric push rod 6 connected to the fixed frame 5, drive the cold ring rolling device 7 connected to the moving part of the electric push rod 6 to move, so as to process the inner diameter of the bearing placed inside the placement groove 10;

[0042] The used coolant enters the recovery tank 3 through the through hole provided inside the placement groove 10 and the filter box 15. A filter plate 17 is fixed on the inner wall of the filter box 15. The filter plate 17 filters the impurities in the coolant, and together with the filter 18 provided on one side of the recovery tank 3, the content of impurities in the recycled coolant is reduced, and it can be continuously used.

[0043] It should be noted that in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device. Without further limitation. The element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device including the said element.

[0044] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pair of cold rolling dies for bearing rings, characterized in that, Including: A workbench (1), on the top of the workbench (1) there is a rectangular groove (11), on the inner wall of the groove (11) there is also a nozzle (8) for coolant spraying, the nozzles (8) are evenly arranged at equal intervals on the inner side wall of the groove (11), and four feet (4) are welded at the bottom of the workbench (1); A placement groove (10) for bearing processing, on the inner bottom wall of the placement groove (10) there are through holes facilitating the circulation of coolant, and the placement groove (10) is arranged at the inner bottom of the groove (11); A fixing frame (5), on the top of the fixing frame (5) there are two telescopically adjustable electric push rods (6) connected by screws, the moving parts of the two electric push rods (6) penetrate through the fixing frame (5) and are fixed to the top of the cold ring rolling device (7), and the side wall of the cold ring rolling device (7) is movably connected to the side wall of the fixing frame (5).

2. The paired cold rolling die for a bearing raceway according to claim 1, characterized in that: On the bottom of the workbench (1) there are two symmetric T-shaped sliding rails (9), and a sliding plate (14) that fits with them is slidably connected to the inner walls of the two sliding rails (9).

3. The paired cold rolling die for a bearing ring according to claim 2, characterized in that: The ends of the two sliding plates (14) are welded to the top of the recycling box (3), and a filter box (15) for circulating coolant filtration is also fixedly connected to the top of the recycling box (3) by bolts, and there is a water inlet groove facilitating the circulation of coolant on the top of the filter box (15).

4. A pair of cold rolling dies for bearing rings according to claim 3, characterized in that: A filter plate (17) for coolant filtration is fixed to the inner wall of the filter box (15), and there are also through holes at the bottom of the filter box (15) that communicate with the recycling box (3).

5. A pair of cold rolling dies for bearing rings according to claim 4, characterized in that: Four symmetric fixing blocks (2) are welded to the side wall of the recycling box (3), each fixing block (2) is threadedly connected with an adjustable threaded rod (13), and an arc-shaped block facilitating force application is welded to the top of the threaded rod (13).

6. A pair of cold rolling dies for bearing rings according to claim 5, characterized in that: The bottom of the threaded rod (13) is rotatably connected with a braking caster (12), and the side of the braking caster (12) is not connected to the side wall of the recycling box (3).

7. A pair of cold rolling dies for bearing rings according to claim 6, characterized in that: On one side of the recycling box (3) there is also a connecting block with a drainage hole (16), there is a threaded hole facilitating connection at the bottom of the connecting block, and a filter (18) for secondary filtration is connected to the threaded hole.

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