CN116713819A - A kind of bearing end face grinding processing technology - Google Patents

Abstract

The application relates to the technical field of bearing machining, in particular to a bearing end face grinding process, which is mainly completed by a bearing end face grinding device in a matched manner, wherein the bearing end face grinding device comprises an upper grinding disc, a lower grinding disc and an adjusting assembly, the adjusting assembly comprises an outer rotating ring, a clamping star wheel and an inner rotating ring, the outer rotating ring and the inner rotating ring can be rotatably arranged on the lower grinding disc, and the outer rotating ring and the inner rotating ring are coaxially arranged; the clamping star wheel can be arranged on the lower grinding disc in a sliding way, one end of the clamping star wheel is meshed with the outer rotating ring, and the other end of the clamping star wheel is meshed with the inner rotating ring. According to the bearing end face grinding processing technology provided by the application, the convex parts of the upper grinding disc and the lower grinding disc are prevented from being overlapped by adjusting the motion state of the bearing, so that the device can normally operate, and the grinding quality is ensured.

Description

A kind of bearing end face grinding processing technology

Technical field

The present invention relates to the technical field of bearing processing, and in particular to a bearing end surface grinding processing technology.

Background technique

Double-end grinders are widely used in the field of mechanical processing, and are generally used in precision machining. Double-end grinders mainly use the end faces of the upper and lower grinding wheels to grind the upper and lower end faces of the workpiece at the same time; double-end grinders can be divided according to their structures. There are two types: horizontal and vertical.

When the vertical double-end grinder is grinding the end face of the bearing, the linear speed of each part of the upper grinding wheel disc is inconsistent, and the same is true for the lower grinding wheel disc. Since the grinding consumption of the grinding wheel is related to the speed, the upper and lower grinding wheel discs are not consistent. The situation of convexity is prone to occur, which has a great impact on the grinding accuracy and grinding difficulty of the bearing; and the upper and lower grinding wheel discs are rotated in opposite directions, and the bearing is easily driven by the two grinding wheels in opposite directions of rotation. In the positioning chuck, The tilt causes the ground end face of the bearing to be larger on one side and smaller on the other, causing the end face plane and the outer circular face to tilt, forming a parallelogram with poor verticality.

Contents of the invention

Based on this, it is necessary to provide a bearing end face grinding process to address the current problems of low bearing grinding accuracy and high grinding difficulty in bearing processing.

The above objectives are achieved through the following technical solutions:

A bearing end face grinding process is mainly completed by a bearing end face grinding device. The bearing end face grinding device includes an upper grinding plate, a lower grinding plate and an adjusting assembly. The adjusting assembly includes an outer swivel ring, a clamp Holding star wheel and inner rotating ring; the bearing end surface grinding process includes the following steps:

S1. One-time placement and fixation: Place the bearing on the lower grinding plate, and the bearing is clamped by the clamping star wheel;

S2. One-time grinding: the upper grinding disc drives the clamping star wheel to move through the inner rotating ring;

S3. Secondary placement and fixation: Place the new bearing on the lower grinding plate, and the new bearing is clamped by the clamping star wheel;

S4. Secondary grinding: the upper grinding disc drives the clamping star wheel to move through the outer rotating ring;

The outer rotating ring and the inner rotating ring are both rotatably arranged on the lower grinding plate, and the outer rotating ring and the inner rotating ring are coaxially arranged; the clamping star wheel is slidably arranged on the lower grinding plate. On the lower grinding plate, one end of the clamping star wheel meshes with the outer rotating ring, and the other end meshes with the inner rotating ring.

Further, the pressure of the upper grinding disc on the bearing is negatively correlated with the distance the upper grinding disc moves.

Further, the lower grinding disc is provided with a grinding fluid discharge hole, and the grinding fluid discharge hole is used to discharge grinding fluid; the spray volume of the grinding fluid and the pressure of the upper grinding disc on the bearing Positive correlation.

Further, the lower grinding plate is provided with an engaging component; the outer rotating ring and the inner rotating ring are both provided with toothed columns; the engaging component has two working states. When in the first working state, , the engaging component cooperates with the matching tooth column on the inner swivel ring; when in the second working state, the engaging component cooperates with the matching tooth column on the outer swivel ring.

Further, the engaging assembly includes a key and an elastic member. One end of the elastic member is provided on the lower grinding plate, and the other end is provided on the key; the upper grinding plate can slide up and down in the vertical direction. The inner ring is provided with an inner ring and an outer ring, and the inner ring is provided with an inner ring hole that matches the matching tooth column on the inner rotating ring; the outer ring is provided with a matching tooth on the outer rotating ring. The outer ring hole for the column fit.

Further, the adjustment assembly further includes a driving member used to provide a driving force for movement of the inner ring and the outer ring.

Further, the clamping star wheel includes an outer star wheel and a middle star wheel, and the middle star wheel is rotatably arranged in the middle of the outer star wheel; the outer star wheel is provided with a toothed column corresponding to the toothed column. The first tooth that matches; the middle star wheel is provided with a second tooth that matches the toothed column; the outer star wheel is provided with a first mounting hole, and the middle star wheel is provided with a second mounting hole holes, the first mounting hole and the second mounting hole are both used to place the bearing.

Further, the number of the first mounting holes and the second mounting holes is at least two groups.

Further, the number of the clamping star wheels is at least two groups.

The beneficial effects of the present invention are:

The invention provides a bearing end face grinding process which is mainly completed by a bearing end face grinding device. The bearing end face grinding device includes an upper grinding plate, a lower grinding plate and an adjusting assembly. The adjusting assembly includes an outer swivel ring, a clamping device and an upper grinding plate. The star wheel and the inner rotating ring, the outer rotating ring and the inner rotating ring are all rotatably arranged on the lower grinding plate, and the outer rotating ring and the inner rotating ring are coaxially arranged; the clamping star wheel is slidably arranged on the lower grinding plate, and the clamping star wheel is slidably installed on the lower grinding plate. One end of the star wheel meshes with the outer rotating ring, and the other end meshes with the inner rotating ring. The bearing end surface grinding process provided by the invention prevents the convexities of the upper grinding disc and the lower grinding disc from overlapping by adjusting the motion state of the bearing, so that the device can operate normally and the grinding quality is ensured.

Furthermore, by arranging a clamping star wheel, the bearing can be prevented from tilting, and the end surface of the bearing can be prevented from being larger on one side and smaller on the other side, thus ensuring the verticality of the bearing.

Furthermore, by adjusting the pressure of the upper grinding disc on the bearing from large to small, the bearing end surface is first quickly rough ground and finally fine grinded during the grinding process, thereby ensuring the grinding efficiency and the processing quality of the bearing.

Furthermore, by adjusting the pressure of the upper grinding disc on the bearing from large to small, the bulges of the upper grinding disc and the lower grinding disc are quickly smoothed at the beginning to reduce the impact of the unevenness of the grinding disc surface on the grinding quality in the final fine grinding stage. .

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of a bearing end surface grinding processing device provided by an embodiment of the present invention.

FIG. 2 is a schematic three-dimensional structural view of a bearing end surface grinding processing device with the upper grinding disc and adjustment assembly removed according to an embodiment of the present invention.

FIG. 3 is a schematic three-dimensional structural view of the adjustment assembly of the bearing end surface grinding and processing device provided by an embodiment of the present invention.

FIG. 4 is a schematic three-dimensional structural diagram of a bearing end surface grinding and processing device provided by an embodiment of the present invention, with the adjustment component of the clamping star wheel removed.

FIG. 5 is a schematic cross-sectional structural view of a bearing end surface grinding and processing device provided by an embodiment of the present invention, with the adjustment component of the clamping star wheel removed.

FIG. 6 is a partially enlarged structural diagram of position A of the bearing end surface grinding and processing device shown in FIG. 5 , with the adjusting assembly holding the star wheel removed.

Figure 7 is a schematic diagram of the assembly structure of a bearing end surface grinding and processing device equipped with tooth columns, snap keys and compression springs according to an embodiment of the present invention.

Figure 8 is a schematic exploded structural diagram of the outer star wheel and the middle star wheel of the bearing end surface grinding and processing device provided by one embodiment of the present invention.

Figure 9 is a schematic three-dimensional structural view of the upper grinding disc of the bearing end surface grinding processing device provided by an embodiment of the present invention.

Figure 10 is a schematic cross-sectional structural view of the upper grinding disc of the bearing end surface grinding processing device provided by an embodiment of the present invention.

in:

100. Grinding machine; 110. Rotating shaft;

200. Upper grinding disc; 201. Upper inner ring groove; 202. Upper outer ring groove; 210. Inner ring; 211. Inner ring hole; 220. Outer ring; 221. Outer ring hole; 230. Hydraulic rod;

300. Adjustment component; 310. External rotating ring; 311. First connection hole; 312. Second connection hole; 320. Key; 321. Compression spring; 330. Clamping star wheel; 331. External star wheel; 3311. First tooth; 3312, first mounting hole; 332, middle star wheel; 3321, second tooth; 3322, second mounting hole; 340, inner rotating ring; 350, matching tooth column;

400. Lower grinding disc; 401. Lower inner ring groove; 4011. Lower inner key hole; 402. Lower outer ring groove; 4021. Lower outer key hole; 403. Grinding fluid discharge hole.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

The serial numbers assigned to components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "connection" mentioned in this application include direct and indirect connections (connections) unless otherwise specified. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientations or positional relationships indicated by "bottom", "inner", "outside", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. , rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

In the present invention, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

When the vertical double-end grinder is grinding the end face of the bearing, the linear speed of each part of the upper grinding wheel disc is inconsistent, and the same is true for the lower grinding wheel disc. Since the grinding consumption of the grinding wheel is related to the speed, the upper and lower grinding wheel discs are not consistent. It is easy to have convexity, which will have a great impact on the grinding accuracy and grinding difficulty of the bearing.

The bearing end surface grinding process provided by the invention adjusts the motion state of the bearing to prevent the convexities of the upper grinding disc and the lower grinding disc from superimposing, so that the device can operate normally and the grinding quality is ensured.

As shown in Figures 1 to 10, the bearing end surface grinding process provided by one embodiment of the present invention is mainly completed by a bearing end surface grinding device, and the bearing end surface grinding device is used to grind the bearing; in this application In the embodiment, the bearing end surface grinding processing device includes a grinding machine 100, an upper grinding disc 200, an adjustment assembly 300 and a lower grinding disc 400. The grinding machine 100 is provided with a rotating shaft 110, and the upper grinding disc 200 is fixedly sleeved on the rotating shaft 110.

On the grinding machine 100 , a lower grinding disc 400 is provided coaxially with the rotating shaft 110 and directly below the rotating shaft 110 .

The lower grinding plate 400 is provided with an adjusting assembly 300. The adjusting assembly 300 includes an outer rotating ring 310, a clamping star wheel 330 and an inner rotating ring 340; both the outer rotating ring 310 and the inner rotating ring 340 are rotatably arranged on the lower grinding plate 400. The swivel ring 310 and the inner swivel ring 340 are coaxially arranged, and the axis of the outer swivel ring 310 coincides with the axis of the lower grinding plate 400; one end of the clamping star wheel 330 meshes with the outer swivel ring 310, and the other end meshes with the inner swivel ring 340. The star wheel 330 is used to clamp the bearing; the outer rotating ring 310 and the inner rotating ring 340 drive the bearing to rotate by clamping the star wheel 330, so that the bearing can revolve while rotating, thereby grinding the bearing.

The bearing end face grinding process includes the following steps:

S1. One-time placement and fixation: Place the bearing on the lower grinding plate 400, and the bearing is clamped by the clamping star wheel 330;

S2. One-time grinding: the upper grinding disc 200 drives the clamping star wheel 330 to move through the inner rotating ring 340;

S3. Secondary placement and fixation: place the new bearing on the lower grinding plate 400, and clamp the new bearing by the clamping star wheel 330;

S4. Secondary grinding: the upper grinding disc 200 drives the clamping star wheel 330 to move through the outer rotating ring 310;

When the bearing end surface grinding processing device is in use, the bearing is clamped by the clamping star wheel 330, and then the upper grinding plate 200 drives the clamping star wheel 330 to rotate and revolve through the inner rotating ring 340 or the outer rotating ring 310. During the rotation process The upper middle grinding disc 200 and the lower grinding disc 400 cooperate to grind the end face of the bearing.

During the grinding process, the pressure of the upper grinding disc 200 on the bearing is negatively correlated with the distance the upper grinding disc 200 moves, so that during the grinding process, the bearing end surface is first quickly rough ground, and finally fine grinded, while ensuring the grinding efficiency. Ensure the processing quality of bearings.

The grinding fluid discharge hole 403 is provided on the lower grinding disc 400, and the grinding fluid discharge hole 403 is used to discharge the grinding fluid; during the grinding process, the amount of grinding fluid ejected is positively related to the pressure of the upper grinding disc 200 on the bearing, so that In the early stage of grinding, when the pressure of the upper grinding disc 200 on the bearing is greater, the grinding volume is larger and the heat is generated more intensely. By increasing the spray volume of the grinding fluid, the grinding disc is quickly cooled to prevent damage to the device; in the later stage of grinding, the upper grinding disc 200 is 200 has less pressure on the bearing, smaller grinding volume, and lower heat production. By reducing the amount of grinding fluid ejected, the loss of grinding fluid is reduced.

The bearing end surface grinding process provided by the present invention prevents the convexities of the upper grinding disc 200 and the lower grinding disc 400 from overlapping by adjusting the motion state of the bearing, so that the device can operate normally and the grinding quality is ensured.

By arranging the clamping star wheel 330, the bearing can be prevented from tilting, and the end surface of the bearing can be prevented from being larger on one side and smaller on the other side, thereby ensuring the verticality of the bearing.

In some embodiments, the lower grinding plate 400 is provided with a snap assembly, and the outer rotating ring 310 and the inner rotating ring 340 are both provided with toothed columns 350, and the toothed columns 350 are used to engage with the clamping star wheel 330; Multiple sets of first connection holes 311 and multiple sets of second connection holes 312 are evenly provided on the end surfaces of the ring 310 and the inner rotating ring 340. The first connection holes 311 and the second connection holes 312 are connected. The diameter of the first connection hole 311 is larger than the second connecting hole 312; the number of the matching tooth columns 350 is multiple sets, and the matching tooth columns 350 can be slid up and down in the vertical direction to be sleeved in the first connecting hole 311.

The engaging component has two working states. When the engaging component is in the first working state, the toothed column 350 on the inner rotating ring 340 is located in the second connecting hole 312 on the inner rotating ring 340, so that the inner rotating ring 340 can face each other. When the lower grinding plate 400 rotates, the upper grinding plate 200 can drive the clamping star wheel 330 to rotate while rotating through the inner rotating ring 340, thereby grinding the bearing; when the engaging assembly is in the second working state, the outer rotating ring 310 The toothed column 350 is located in the second connecting hole 312 on the outer swivel ring 310, so that the outer swivel ring 310 can rotate relative to the lower grinding plate 400, so that the upper grinding plate 200 can drive and clamp the star wheel 330 through the outer swivel ring 310. It rotates while revolving, thereby grinding the bearing.

It can be understood that the snap assembly includes a hydraulic column. In the initial state, the hydraulic columns are located in the second connecting hole 312 on the inner rotating ring 340 and the second connecting hole 312 on the outer rotating ring 310, so that the outer rotating ring 310 and the inner rotating ring 340 cannot rotate relative to the lower grinding plate 400; when the hydraulic column is in the first working state, the hydraulic columns directly below the toothed column 350 on the inner rotating ring 340 are retracted, so that the inner rotating ring 340 The upper toothed column 350 is located in the second connecting hole 312 on the inner rotating ring 340, so that the inner rotating ring 340 can rotate relative to the lower grinding plate 400, so that the upper grinding plate 200 can drive the clamping star wheel 330 through the inner rotating ring 340. While rotating and revolving, the bearing is ground; when the hydraulic column is in the second working state, the hydraulic columns directly below the toothed column 350 on the outer swivel ring 310 are retracted, so that the toothed columns on the outer swivel ring 310 are retracted. The column 350 is located in the second connection hole 312 on the outer swivel ring 310, so that the outer swivel ring 310 can rotate relative to the lower grinding plate 400, so that the upper grinding plate 200 can drive the clamping star wheel 330 through the outer swivel ring 310 to rotate while revolving. , and then grind the bearing.

In some embodiments, the locking component includes a latch 320 and an elastic member. The latch 320 and the elastic member are both arranged on the lower grinding plate 400. In this embodiment, the elastic member is a compression spring 321; the latch 320 passes through the compression spring 321. Connected to the lower grinding plate 400, one end of the compression spring 321 is fixedly connected to the lower grinding plate 400, and the other end is fixedly connected to the key 320.

The lower grinding plate 400 is provided with a lower inner ring groove 401 and a lower outer ring groove 402. The axis of the lower inner ring groove 401 coincides with the axis of the lower grinding plate 400, and the axis of the lower outer ring groove 402 coincides with the axis of the lower grinding plate 400; Multiple sets of lower inner key holes 4011 are evenly provided on the ring groove 401; multiple sets of lower outer key holes 4021 are evenly provided on the lower outer ring groove 402; the diameters and depths of the lower inner key holes 4011 and the lower outer key holes 4021 are the same. . The lower inner key hole 4011 and the lower outer key hole 4021 are both provided with a latch key 320 and a compression spring 321; one end of the latch key 320 is in contact with the lower surface of the toothed column 350.

Both the inner ring 210 and the outer ring 220 can be slid up and down on the upper grinding plate 200 in the vertical direction. The inner ring 210 and the outer ring 220 are coaxially arranged; a plurality of sets of inner ring holes 211 are evenly provided on the end surface of the inner ring 210. The toothed posts 350 on the inner swivel ring 340 can cooperate with the inner ring hole 211; a plurality of groups of outer ring holes 221 are evenly provided on the end surface of the outer ring 220, and the toothed posts 350 on the outer swivel ring 310 can cooperate with the outer ring holes 221. Cooperation; the inner ring 210 is used to provide the driving force for the movement of the toothed column 350 on the inner rotating ring 340; the outer ring 220 is used to provide the driving force for the movement of the toothed column 350 on the outer rotating ring 310.

The upper grinding plate 200 drives the inner ring 210 to move downward, so that the inner ring hole 211 on the inner ring 210 cooperates with the toothed column 350 on the inner rotating ring 340, so that the matching toothed column 350 on the inner rotating ring 340 is located on the inner rotating ring 340. in the second connecting hole 312, so that the key 320 and compression spring 321 directly below the tooth column 350 on the inner rotating ring 340 are in the first working state, so that the inner rotating ring 340 can rotate relative to the lower grinding plate 400, so that the upper The grinding disc 200 can drive the clamping star wheel 330 to rotate and revolve through the inner rotating ring 340, thereby grinding the bearing; the upper grinding disc 200 drives the outer ring 220 to move downward, so that the outer ring hole 221 on the outer ring 220 is in contact with the outer rotating ring. The matching tooth column 350 on the outer swivel ring 310 cooperates so that the matching tooth column 350 on the outer swivel ring 310 is located in the second connection hole 312 on the outer swivel ring 310, so that the matching tooth column 350 on the outer swivel ring 310 directly below the key 320 The compression spring 321 is in the second working state, so that the outer rotating ring 310 can rotate relative to the lower grinding plate 400, so that the upper grinding plate 200 can drive the clamping star wheel 330 to revolve while rotating through the outer rotating ring 310, thereby grinding the bearing. cut.

In some embodiments, the adjustment assembly 300 also includes a driving member, which is used to provide a driving force for movement of the inner ring 210 and the outer ring 220. In this embodiment, the driving member is a hydraulic rod 230; the upper grinding plate 200 is provided with a The upper inner ring groove 201 and the upper outer ring groove 202, the axis of the upper inner ring groove 201 coincides with the axis of the upper grinding plate 200, and the axis of the upper outer ring groove 202 coincides with the axis of the upper grinding plate 200.

A hydraulic rod 230 is provided in both the upper inner ring groove 201 and the upper outer ring groove 202. One end of the hydraulic rod 230 in the upper inner ring groove 201 is set on the upper grinding plate 200, and the other end is set on the inner ring 210. The upper inner ring groove The hydraulic rod 230 in 201 is used to provide the driving force for the movement of the inner ring 210; one end of the hydraulic rod 230 in the upper outer ring groove 202 is set on the upper grinding plate 200, and the other end is set on the outer ring 220. The hydraulic rod 230 is used to provide the driving force for the outer ring 220 to move.

When the hydraulic rod 230 in the upper inner ring groove 201 drives the inner ring 210 to extend, the inner ring hole 211 on the inner ring 210 can cooperate with the toothed column 350 on the inner rotating ring 340; When the hydraulic rod 230 drives the outer ring 220 to extend, the outer ring hole 221 on the outer ring 220 can cooperate with the matching tooth column 350 on the outer rotating ring 310.

In some embodiments, the clamping star wheel 330 includes an outer star wheel 331 and a middle star wheel 332. The outer star wheel 331 and the middle star wheel 332 have the same size. The outer star wheel 331 has two layers, upper and lower, and the two layers are connected by Column connection, the axis of the outer star wheel 331 coincides with the axis of the middle star wheel 332, the middle star wheel 332 is rotatably sleeved on the connecting column of the outer star wheel 331; a plurality of sets of first teeth 3311 are evenly provided on the outer star wheel 331 and the first mounting hole 3312. A plurality of sets of second teeth 3321 and second mounting holes 3322 are evenly provided on the star wheel 332. The shape and number of the first teeth 3311 and the second teeth 3321 are the same. The teeth 3321 can all cooperate with the toothed column 350; the diameters of the first mounting hole 3312 and the second mounting hole 3322 are the same, and the first mounting hole 3312 and the second mounting hole 3322 are used to place the bearings, the outer star wheel 331 and the middle star wheel. 332 is used to clamp the bearing.

The dredge rod is used to align the first installation hole 3312 and the second installation hole 3322, and the diameter of the dredge rod is the same as the diameter of the first installation hole 3312.

Along the axis direction of the toothed column 350, from top to bottom, the toothed column 350 has a large diameter end and a small diameter end.

Use the dredge rod to align the first mounting hole 3312 on the outer star wheel 331 with the second mounting hole 3322 on the middle star wheel 332. At this time, the first tooth 3311 on the outer star wheel 331 and the second tooth 3311 on the middle star wheel 332 are aligned. The teeth 3321 are misaligned in the circumferential direction and the misalignment is very small; when the tooth column 350 moves downward, the contact surface between the tooth column 350 and the clamping star wheel 330 switches from the small diameter end to the large diameter end, and the tooth column 350 makes the outer The first teeth 3311 on the star wheel 331 and the second teeth 3321 on the middle star wheel 332 are aligned, so that the first mounting hole 3312 on the outer star wheel 331 and the second mounting hole 3322 on the middle star wheel 332 are aligned in the circumferential direction. Misalignment, thereby clamping the bearing.

In some embodiments, the number of the first mounting holes 3312 and the second mounting holes 3322 is at least two groups; both the first mounting holes 3312 and the second mounting holes 3322 are used to place bearings.

In this embodiment, the number of the first mounting holes 3312 and the second mounting holes 3322 is five groups, so that for the same group of clamping star wheels 330, five bearings can be installed at one time, thereby improving the grinding performance of the bearings. efficiency.

In some embodiments, the number of clamping star wheels 330 is at least two sets.

In this embodiment, the number of clamping star wheels 330 is five groups, so that the number of bearings that can be clamped by the clamping star wheels 330 is increased, thereby improving the grinding efficiency of the bearings.

Combined with the above embodiments, the usage principles and working processes of the embodiments of the present invention are as follows:

Initially, under the action of the compression spring 321, the key 320 is locked into the second connection hole 312 and abuts against the lower surface of the toothed column 350, so that neither the outer rotating ring 310 nor the inner rotating ring 340 can move relative to the toothed column 350. The lower grinding plate 400 rotates.

Before grinding, place the bearing at the first mounting hole 3312, and make the lower end surface of the bearing contact the lower grinding plate 400; as shown in Figure 10, the control center controls the hydraulic rod 230 in the upper inner ring groove 201 to extend, The lower end surface of the inner ring 210 is aligned with the lower end surface of the upper grinding plate 200, and the control center controls the hydraulic rod 230 in the upper outer ring groove 202 to retract, so that the outer ring 220 is retracted.

The grinder 100 controls the upper grinding disc 200 to move downward to the preset position. At this time, the inner ring hole 211 on the inner ring 210 cooperates with the toothed column 350 on the inner rotating ring 340. On the one hand, the key 320 is completely separated from the inner rotating ring 340. the second connecting hole 312; on the other hand, the first tooth 3311 on the outer star wheel 331 and the second tooth 3321 on the middle star wheel 332 are aligned, so that the first mounting hole 3312 on the outer star wheel 331 is aligned with the middle star wheel 331 The second mounting hole 3322 on the bearing 332 is misaligned, thereby clamping the bearing.

The grinder 100 drives the upper grinding disc 200 to rotate counterclockwise through the rotating shaft 110. The upper grinding disc 200 drives the inner rotating ring 340 to rotate counterclockwise through the cooperation of the inner ring hole 211 and the tooth column 350. The inner rotating ring 340 and the outer rotating ring 310 cooperate to achieve clamping. The star wheel 330 rotates clockwise while revolving counterclockwise around the inner rotating ring 340; during the grinding process, the upper grinding disc 200 gives a set pressure F to the upper end surface of the bearing, and as the grinding of the epicycle progresses, that is, As the upper grinding disc 200 moves downward, the pressure F exerted by the upper grinding disc 200 on the upper end surface of the bearing gradually decreases. When it reaches the required grinding position of the bearing, the pressure is 0. At the same time, the discharge amount of the grinding fluid from the grinding fluid discharge hole 403 The pressure F applied to the upper end surface of the bearing by the upper grinding disc 200 changes synchronously.

During the grinding process, the upper grinding disc 200 drives the clamping star wheel 330 to revolve while rotating through the inner rotating ring 340; from the inside to the outside along the radial direction of the inner rotating ring 340, for the same bearing, the line of the bearing end face The speed increases from low to high, so that the upper grinding disc 200 and the lower grinding disc 400 form a convex shape.

After this round of grinding is completed, the grinder 100 controls the upper grinding disc 200 to move upward, takes out the grinded bearing and places the new bearing at the first mounting hole 3312, and makes the lower end surface of the new bearing abut against the lower grinding disc 400; control The center controls the hydraulic rod 230 in the upper inner ring groove 201 to retract, so that the inner ring 210 retracts, and the control center controls the hydraulic rod 230 in the upper outer ring groove 202 to extend, so that the lower end surface of the outer ring 220 and the upper grinding plate 200 The lower ends are aligned.

The grinder 100 controls the upper grinding disc 200 to move downward to the preset position. At this time, the outer ring hole 221 on the outer ring 220 cooperates with the toothed column 350 on the outer rotating ring 310. On the one hand, the key 320 is completely separated from the outer rotating ring 310. the second connecting hole 312; on the other hand, the first tooth 3311 on the outer star wheel 331 and the second tooth 3321 on the middle star wheel 332 are aligned, so that the first mounting hole 3312 on the outer star wheel 331 is aligned with the middle star wheel 331 The second mounting hole 3322 on 332 is misaligned, thereby clamping the new bearing.

The grinding machine 100 drives the upper grinding disc 200 to rotate counterclockwise through the rotating shaft 110. The upper grinding disc 200 drives the outer rotating ring 310 to rotate counterclockwise through the cooperation of the outer ring hole 221 and the tooth column 350. The inner rotating ring 340 and the outer rotating ring 310 cooperate to achieve clamping. The star wheel 330 rotates counterclockwise while revolving counterclockwise around the inner rotating ring 340; during the grinding process, the upper grinding disc 200 gives a set pressure F to the upper end surface of the bearing, and as the grinding of the epicycle progresses, that is, As the upper grinding disc 200 moves downward, the pressure F exerted by the upper grinding disc 200 on the upper end surface of the bearing gradually decreases. When it reaches the required grinding position of the bearing, the pressure is 0. At the same time, the discharge amount of the grinding fluid from the grinding fluid discharge hole 403 The pressure F applied to the upper end surface of the bearing by the upper grinding disc 200 changes synchronously.

During the grinding process, the upper grinding disc 200 drives the clamping star wheel 330 to revolve while rotating through the outer rotating ring 310; from outside to inward along the radial direction of the outer rotating ring 310, for the same bearing, the line of the bearing end face The speed increases from small to small, so that the upper grinding disc 200 and the lower grinding disc 400 form a concave shape.

The bearing end surface grinding processing device alternately drives the clamping star wheel 330 to rotate and revolve through the inner rotating ring 340 or the outer rotating ring 310; so that the upper grinding plate 200 and the lower grinding plate 400 appear convex and concave in sequence, so that the upper grinding plate 200 The convexity and concavity on the upper grinding disc or the convexity and concaveness on the lower grinding disc 400 can offset each other, so that the upper grinding disc 200 or the lower grinding disc 400 can always grind the bearing with good flatness, thus ensuring the processing quality of the product. .

The technical features of the above embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, all possible combinations should be used. It is considered to be within the scope of this manual.

The above-mentioned embodiments only express several implementation modes of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the patent scope of the present invention. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the patent of the present invention should be determined by the appended claims.

Claims (9)

1. A bearing end face grinding process, which is characterized in that it is mainly completed by a bearing end face grinding device. The bearing end face grinding device includes an upper grinding plate, a lower grinding plate and an adjusting assembly. The adjusting assembly It includes an outer swivel ring, a clamping star wheel and an inner swivel ring; the bearing end surface grinding process includes the following steps: S1. One-time placement and fixation: Place the bearing on the lower grinding plate, and the bearing is clamped by the clamping star wheel; S2. One-time grinding: the upper grinding disc drives the clamping star wheel to move through the inner rotating ring; S3. Secondary placement and fixation: Place the new bearing on the lower grinding plate, and the new bearing is clamped by the clamping star wheel; S4. Secondary grinding: the upper grinding disc drives the clamping star wheel to move through the outer rotating ring; The outer rotating ring and the inner rotating ring are both rotatably arranged on the lower grinding plate, and the outer rotating ring and the inner rotating ring are coaxially arranged; the clamping star wheel is slidably arranged on the lower grinding plate. On the lower grinding plate, one end of the clamping star wheel meshes with the outer rotating ring, and the other end meshes with the inner rotating ring. 2. The bearing end surface grinding process according to claim 1, characterized in that the pressure of the upper grinding disc on the bearing is negatively correlated with the distance of movement of the upper grinding disc. 3. The bearing end face grinding process according to claim 1, characterized in that the lower grinding disc is provided with a grinding fluid discharge hole, and the grinding fluid discharge hole is used to discharge grinding fluid; the grinding fluid discharge hole is used to discharge grinding fluid; The amount of coolant ejected is directly related to the pressure of the upper grinding disc on the bearing. 4. The bearing end face grinding process according to claim 1, characterized in that the lower grinding disc is provided with an engaging component; the outer swivel ring and the inner swivel ring are both provided with matching tooth columns; The engaging component has two working states. When in the first working state, the engaging component cooperates with the toothed column on the inner rotating ring; when in the second working state, the engaging component cooperates with the toothed column. The matching tooth column on the outer swivel ring is matched. 5. The bearing end surface grinding process according to claim 4, characterized in that the engaging component includes a key and an elastic member, one end of the elastic member is provided on the lower grinding plate, and the other end is provided on the lower grinding plate. On the said snap key; the upper grinding disc is provided with an inner ring and an outer ring that can slide up and down in the vertical direction, and the inner ring is provided with an inner ring hole that matches the toothed column on the inner rotating ring; The outer ring is provided with an outer ring hole that matches the toothed column on the outer rotating ring. 6. The bearing end surface grinding process according to claim 5, characterized in that the adjustment assembly further includes a driving member, and the driving member is used to provide a driving force for movement of the inner ring and the outer ring. 7. The bearing end surface grinding process according to claim 4, wherein the clamping star wheel includes an outer star wheel and a middle star wheel, and the middle star wheel is rotatably arranged on the outer star wheel. in the middle; the outer star wheel is provided with a first tooth that cooperates with the toothed column; the middle star wheel is provided with a second tooth that cooperates with the toothed column; the outer star wheel is provided with There is a first mounting hole, and the middle star wheel is provided with a second mounting hole. Both the first mounting hole and the second mounting hole are used to place the bearing. 8. The bearing end surface grinding process according to claim 7, wherein the number of the first mounting holes and the second mounting holes is at least two groups. 9. The bearing end surface grinding process according to claim 1, wherein the number of the clamping star wheels is at least two groups.