Grinding clamping tool for inner ring and outer ring of bearing
Technical Field
The utility model relates to the field of bearing machining, in particular to a grinding and clamping tool for an inner ring and an outer ring of a bearing.
Background
Deep groove ball bearings are one of the most common bearing types, mainly for carrying radial loads. The ball filling angle of the conventional deep groove ball bearing is generally 186-194 degrees, and once the ball filling angle exceeds the range, the steel ball is difficult to be filled.
In order to adapt to some high-load working conditions, full-complement deep groove ball bearings have been developed. Full-complement deep-groove ball bearings are generally structured to include an outer race, an inner race, and a set of rolling elements, without the use of a cage. The bearing capacity of the bearing can be improved due to the fact that the number of rolling bodies between the inner ring and the outer ring is larger than that of a conventional deep groove ball bearing. However, the ball bearing fully provided with the deep groove cannot be filled with steel balls in a conventional manner, a ball filling notch is additionally added to the flanges of the inner ring and the outer ring respectively, and when ball filling ports of the inner ring and the outer ring are aligned, rolling bodies can be filled one by one.
The ball filling port of the full-filling deep groove ball bearing is usually formed by grinding, and is generally carried out after superfinishing of a ferrule, and the process enters an assembly link after finishing, and belongs to the last process of grinding. In addition, the machining precision requirement of the ball filling notch is high, the groove bottom can be damaged by grinding more, the steel balls are difficult to load due to the fact that grinding is less, and the steel balls are difficult to control in the grinding machining process. The traditional tool for processing the ball filling port has the defects of higher rejection rate and low processing efficiency in the grinding processing procedure of the ball filling port due to the problems of precision, positioning and the like.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the grinding clamping tool for the inner ring and the outer ring of the bearing, which can reliably clamp and position the inner ring and the outer ring of the bearing, ensure smooth grinding processing and effectively improve the qualification rate of products.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the grinding and clamping tool for the bearing inner ring comprises a mounting bottom plate, wherein a positioning block and a pressing mechanism are arranged on the mounting bottom plate, a fixed positioning unit is arranged on the positioning block, the fixed positioning unit is arranged towards the pressing mechanism, and a mounting interval is formed between the positioning block and the pressing mechanism;
the inner ring clamping assembly is arranged in a split mode with the mounting bottom plate; the inner ring clamping assembly comprises a positioning seat, one side of the positioning seat is provided with a movable positioning unit, and the movable positioning unit is matched with the fixed positioning unit;
the positioning seat is provided with an installation mandrel, and the installation mandrel is connected with a compression unit.
Before grinding, firstly, sleeving an inner ring on a mounting mandrel, and compacting by a compacting unit; and then placing the inner ring clamping assembly in an installation interval, wherein the movable positioning unit and the fixed positioning unit are matched and positioned, and locking through the pressing mechanism to clamp the inner ring. Wherein the mounting base plate is fixed on the grinding machine. The grinding clamping tool can reliably clamp and position the inner ring, ensures smooth grinding processing, and effectively improves the qualification rate of products.
Preferably, one of the fixed positioning unit and the movable positioning unit is a V-shaped groove, and the other is a V-shaped bump.
Preferably, the compressing mechanism comprises a mounting block and a power unit, wherein the mounting block is connected with the mounting bottom plate, and the power unit is arranged on the mounting block; the power unit is an electric cylinder, an air cylinder or a hydraulic cylinder.
Preferably, the mounting mandrel is detachably connected with the positioning seat. The installation mandrels with different sizes can be replaced according to the specification of the inner ring.
Preferably, the pressing unit includes an inner ring cover plate and a locking bolt.
The grinding and clamping tool for the bearing outer ring comprises a mounting bottom plate, wherein a positioning block and a pressing mechanism are arranged on the mounting bottom plate, a fixed positioning unit is arranged on the positioning block, the fixed positioning unit is arranged towards the pressing mechanism, and a mounting interval is formed between the positioning block and the pressing mechanism;
the outer ring clamping assembly is arranged in a split mode with the mounting bottom plate; the outer ring clamping assembly comprises a positioning seat, one side of the positioning seat is provided with a movable positioning unit, and the movable positioning unit is matched with the fixed positioning unit;
the positioning seat is provided with a positioning base and an outer ring gland, and the outer ring gland is detachably connected with the positioning base; the positioning base is provided with a positioning base hole, the outer ring gland is provided with a compression surface, and the outer ring gland is provided with a processing channel.
Before grinding, firstly placing the outer ring in a positioning base hole, wherein the positioning base hole plays a role in radial positioning of the outer ring and is tightly pressed by an outer ring gland; and then placing the outer ring clamping assembly in an installation interval, wherein the movable positioning unit and the fixed positioning unit are matched and positioned, and locking through the pressing mechanism to complete the clamping of the outer ring. Wherein the mounting base plate is fixed on the grinding machine. During machining, the cutter enters from the machining channel, and the outer ring is ground. The grinding clamping tool can reliably clamp and position the outer ring, ensures smooth grinding processing, and effectively improves the qualification rate of products.
Preferably, one of the fixed positioning unit and the movable positioning unit is a V-shaped groove, and the other is a V-shaped bump.
Preferably, the compressing mechanism comprises a mounting block and a power unit, wherein the mounting block is connected with the mounting bottom plate, and the power unit is arranged on the mounting block; the power unit is an electric cylinder, an air cylinder or a hydraulic cylinder.
Preferably, the positioning base is detachably connected with the positioning seat. The positioning base and the outer ring gland with different sizes can be selected according to the specification of the outer ring.
Preferably, the positioning base is cylindrical, and the cylindrical surface is provided with external threads; the outer ring gland on be equipped with the mounting groove, the inner wall of mounting groove is equipped with the internal thread, outer ring gland and location basal portion threaded connection.
Drawings
Fig. 1 is a front view of a grinding and clamping tool for an inner ring of a bearing in the embodiment;
fig. 2 is a cross-sectional view of a grinding and clamping tool for an inner ring of a bearing according to the embodiment;
fig. 3 is a front view of a positioning seat in the grinding and clamping tool for the bearing inner ring in the embodiment;
fig. 4 is a cross-sectional view of the middle transition mounting seat and the mounting mandrel of the grinding clamping tool for the bearing inner ring in the embodiment;
fig. 5 is a front view of a grinding and clamping tool for the bearing outer ring of the embodiment;
fig. 6 is a sectional view of a grinding and clamping tool for the bearing outer ring of the embodiment;
fig. 7 is a partial enlarged view at a in fig. 6.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
As shown in fig. 1 and fig. 2, a grinding and clamping tool for an inner ring of a bearing comprises a mounting bottom plate 1, wherein a positioning block 2 and a pressing mechanism 5 are arranged on the mounting bottom plate 1, a fixed positioning unit 21 is arranged on the positioning block 2, the fixed positioning unit 21 is arranged towards the pressing mechanism 5, and a mounting interval is formed between the positioning block 2 and the pressing mechanism 5.
As shown in fig. 1 and 2, specifically, the pressing mechanism 5 includes a mounting block and a power unit, the mounting block is connected with the mounting base plate 1, and the power unit is disposed on the mounting block; the power unit is an electric cylinder, an air cylinder or a hydraulic cylinder.
As shown in fig. 1-3, the inner ring clamping assembly is arranged separately from the mounting baseplate 1; the inner ring clamping assembly comprises a positioning seat 3, a movable positioning unit 31 is arranged on one side of the positioning seat 3, and the movable positioning unit 31 is matched with the fixed positioning unit 21.
As shown in fig. 1 to 3, specifically, one of the fixed positioning unit 21 and the movable positioning unit 31 is a V-shaped groove, and the other is a V-shaped bump.
As shown in fig. 1 and 4, the positioning seat 3 is provided with a mounting mandrel 4, and the mounting mandrel 4 is connected with a compressing unit. The compressing unit comprises an inner ring cover plate and a locking bolt, an inner ring installation space is formed between the inner ring cover plate and the end face of the installation mandrel 4, and the inner ring cover plate is contacted with the inner ring and locked through the locking bolt. The mounting mandrel 4 is detachably connected with the positioning seat 3. The mounting mandrels 4 of different sizes can be replaced according to the specifications of the inner ring. Specifically, a transition mounting seat 41 is arranged on the positioning seat 3, and the mounting mandrel 4 is arranged on the transition mounting seat 41.
Before grinding, firstly, the inner ring is sleeved on the mounting mandrel 4 and is compressed by the compression unit; then the inner ring clamping assembly is placed in the installation interval, wherein the movable positioning unit 31 and the fixed positioning unit 21 are matched and positioned, and are locked through the pressing mechanism 5, so that the inner ring is clamped. Wherein the mounting base plate 1 is fixed to a grinding machine. The grinding clamping tool can reliably clamp and position the inner ring, ensures smooth grinding processing, and effectively improves the qualification rate of products.
As shown in fig. 5 and 6, a grinding and clamping tool for an outer ring of a bearing comprises a mounting bottom plate 1, wherein a positioning block 2 and a pressing mechanism 5 are arranged on the mounting bottom plate 1, a fixed positioning unit 21 is arranged on the positioning block 2, the fixed positioning unit 21 is arranged towards the pressing mechanism 5, and a mounting interval is formed between the positioning block 2 and the pressing mechanism 5.
As shown in fig. 5 and 6, specifically, the pressing mechanism 5 includes a mounting block and a power unit, the mounting block is connected with the mounting base plate 1, and the power unit is disposed on the mounting block; the power unit is an electric cylinder, an air cylinder or a hydraulic cylinder.
As shown in fig. 5 and 6, the device further comprises an outer ring clamping assembly, and the outer ring clamping assembly and the mounting bottom plate 1 are arranged in a separated mode. The outer ring clamping assembly comprises a positioning seat 3, a movable positioning unit 31 is arranged on one side of the positioning seat 3, and the movable positioning unit 31 is matched with the fixed positioning unit 21.
As shown in fig. 5 and 6, specifically, one of the fixed positioning unit 21 and the movable positioning unit 31 is a V-shaped groove, and the other is a V-shaped bump.
As shown in fig. 7, the positioning seat 3 is provided with a positioning base 7 and an outer ring gland 6, and the outer ring gland 6 is detachably connected with the positioning base 7; the positioning base 7 is provided with a positioning base hole, the outer ring gland 6 is provided with a compression surface, and the outer ring gland 6 is provided with a processing channel 61.
As shown in fig. 5 and 6, specifically, the positioning base 7 is cylindrical, and the cylindrical surface is provided with external threads; the outer ring gland 6 is provided with a mounting groove, the inner wall of the mounting groove is provided with internal threads, and the outer ring gland 6 is in threaded connection with the positioning base 7. The positioning base 7 is detachably connected with the positioning seat 3. The positioning base 7 and the outer ring gland 6 of different sizes can be selected according to the specifications of the outer ring.
Before grinding, firstly placing the outer ring in a positioning base hole and compacting through an outer ring gland 6; then the outer ring clamping assembly is placed in an installation interval, wherein the movable positioning unit 31 and the fixed positioning unit 21 are matched and positioned, and are locked through the pressing mechanism 5, so that the clamping of the outer ring is completed. Wherein the mounting base plate 1 is fixed to a grinding machine. During machining, the cutter enters from the machining channel, and the outer ring is ground. The grinding clamping tool can reliably clamp and position the outer ring, ensures smooth grinding processing, and effectively improves the qualification rate of products.
The positioning block 2, the pressing mechanism 5 and the positioning seat 3 in the inner ring grinding clamping tool and the outer ring clamping tool can be used universally, wherein the positioning seat 3 is provided with a mounting unit corresponding to the transition mounting seat 41 and a mounting unit corresponding to the positioning base 7 respectively, so that the part of the parts is used universally.
In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.