CN110000661B - Bearing inner and outer ring rollaway nest and inner ring internal diameter grinding equipment - Google Patents
Bearing inner and outer ring rollaway nest and inner ring internal diameter grinding equipment Download PDFInfo
- Publication number
- CN110000661B CN110000661B CN201910427435.7A CN201910427435A CN110000661B CN 110000661 B CN110000661 B CN 110000661B CN 201910427435 A CN201910427435 A CN 201910427435A CN 110000661 B CN110000661 B CN 110000661B
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- 238000009966 trimming Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 17
- 229910003460 diamond Inorganic materials 0.000 claims description 16
- 239000010432 diamond Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 22
- 238000012545 processing Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
- B24B53/075—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model provides an outer lane raceway and inner circle internal diameter grinding equipment in bearing, relates to bearing processing technology field, and it includes the lathe bed, be equipped with feed mechanism, positioning mechanism, grinding mechanism, measuring mechanism and trimming mechanism on the lathe bed, feed mechanism, positioning mechanism, measuring mechanism and trimming mechanism all set up on X axial slip table, grinding mechanism sets up on Y axial slip table, X axial slip table and Y axial slip table all sliding connection are on the lathe bed and slip direction mutually perpendicular. The inner ring raceway grinding process, the outer ring raceway grinding process and the inner ring inner diameter grinding process can be respectively finished on one set of equipment provided by the invention, the positioning mode is more accurate, the curvature of the machined bearing groove is uniform, the contour shape is consistent, the feeding mode of the electric spindle is more accurate and stable, the service life is longer, and the precision of the machined bearing can reach the P4 and P2 level standard.
Description
Technical Field
The invention relates to the technical field of bearing machining, in particular to grinding equipment for inner diameters of an inner ring and an outer ring of a bearing.
Background
The bearing is used as a high-precision assembly, strict requirements are imposed on production conditions, the processing procedure of the bearing generally comprises grinding an inner ring raceway, an outer ring raceway and an inner diameter of the bearing, and the ultra-precision grinding procedure of the bearing in the related domestic industry is to position the bearing on each device in a positioning mode at first, and then grind the inner ring raceway, the outer ring raceway and the inner diameter of the bearing on each device respectively.
When the inner race and the outer race of the bearing are ground, the guide wheel is mainly pressed by the guide wheel to rotate at high speed so as to drive the bearing to be attached to the baffle plate on the inner side of the equipment, and a certain gap is formed between the cover plate on the outer side and the bearing, so that the bearing can shake to a certain extent when rotating at high speed, the stability of the curvature of a bearing groove (namely the raceway) is affected, the groove shape is uneven and inconsistent, the technological requirements on the perpendicularity and concentricity cannot be met, and even the condition that the outer circle of a bearing product is strained can be caused, so that the qualification rate of the product is directly affected.
When the inner diameter of the bearing inner ring is ground, the feeding mode of the electric spindle is that the hydraulic driving steel sleeve is subjected to linear feeding and vibration grinding, the feeding precision of the steel sleeve structure is difficult to ensure, the steel sleeve is easy to wear, and the steel sleeve balls need to be replaced once in three months on average.
The defects generated in the processing process not only easily affect the quality of products, but also delay the production efficiency to a certain extent and improve the production cost because each process is required to be carried out on a plurality of devices.
Disclosure of Invention
The invention aims to solve the problems of providing a bearing inner and outer ring raceway and inner ring inner diameter grinding device, which can respectively finish an inner ring raceway grinding process, an outer ring raceway grinding process and an inner ring inner diameter grinding process only on one set of device, and has the advantages of more accurate positioning mode, uniform curvature and consistent contour shape of a processed bearing groove, more accurate and stable feeding mode of an electric spindle and longer service life.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an outer lane raceway and inner circle internal diameter grinding equipment in bearing, includes the lathe bed, be equipped with feed mechanism, positioning mechanism, grinding mechanism, measuring mechanism and trimming mechanism on the lathe bed, feed mechanism, positioning mechanism, measuring mechanism and trimming mechanism all set up on X axial slip table, grinding mechanism sets up on Y axial slip table, X axial slip table and Y axial slip table all sliding connection are on the lathe bed and slip direction mutually perpendicular.
The feeding mechanism comprises a feeding groove and a pushing cylinder arranged at the bottom of the feeding groove, and the pushing cylinder is used for pushing the bearing into the positioning mechanism.
The positioning mechanism comprises two guide wheels used for clamping the bearing and driving the bearing to rotate, a baffle plate positioned at the front end of the bearing, a pressure rotor positioned at the rear end of the bearing and a supporting block used for propping against the side face of the bearing, wherein the pressure rotor is rotatably arranged on a rotor seat, the pressure rotor can prop against the bearing from the rear end of the bearing so that the front end of the bearing props against the baffle plate, the pressure rotor can rotate along with the bearing, a cutter passing hole coaxially arranged with the bearing is formed in the baffle plate, the two guide wheels are respectively arranged above and below the bearing, the axes of the two guide wheels are mutually staggered in the vertical direction, the supporting block is positioned between the two guide wheels, and the two guide wheels are both in transmission connection with a transmission wheel which is in transmission connection with a motor of the positioning mechanism through a transmission belt.
The grinding mechanism comprises a grinding wheel which is arranged on a Y-axis sliding table and used for grinding a bearing, the grinding wheel is driven by a motor of the grinding mechanism to rotate, the Y-axis sliding table is in sliding connection with a lathe bed through a Y-axis lead screw, a Y-axis guide rail is also in sliding connection between the Y-axis sliding table and the lathe bed, a Y-axis servo motor is connected with the Y-axis lead screw in a transmission manner, the Y-axis lead screw is driven by the Y-axis servo motor to rotate, and the Y-axis sliding table can be driven to move along the Y-axis guide rail, so that the grinding wheel can reciprocate along the Y-axis direction.
The measuring mechanism comprises a measuring seat arranged at the rear of the positioning mechanism, a measuring instrument cylinder is movably connected to the measuring seat, a measuring mechanism cylinder for driving the measuring instrument cylinder to move along the Y-axis direction is arranged on the measuring seat, a measuring instrument is arranged at the front end of the measuring instrument cylinder, the measuring instrument cylinder is driven to move by the measuring mechanism cylinder, and the measuring instrument can be moved to the rear part of a bearing in the positioning mechanism so as to measure the bearing.
The dressing mechanism comprises a dressing seat body which is arranged on the X-axis sliding table and positioned at the front side of the positioning mechanism, a diamond roller used for dressing the grinding wheel is arranged on the dressing seat body, the diamond roller is driven to rotate by a motor of the dressing mechanism, the X-axis sliding table is in sliding connection with the lathe bed through an X-axis lead screw, an X-axis guide rail is also in sliding connection between the X-axis sliding table and the lathe bed, an X-axis servo motor is connected with the X-axis lead screw in a transmission manner, the X-axis lead screw is driven to rotate by the X-axis servo motor, and the X-axis sliding table can be driven to move along the X-axis guide rail, so that the diamond roller can dress the grinding wheel in a linear feeding manner.
Further, a fixed seat is arranged on the X-axis sliding table, a guide wheel above the bearing is arranged on a movable seat, the movable seat is rotatably connected with the fixed seat through a rotating shaft, a tilting rod is fixedly connected with the movable seat, and a discharging cylinder for pushing the tilting rod downwards is arranged on the X-axis sliding table, so that the movable seat is tilted upwards by taking the rotating shaft as a rotating center.
Preferably, the rotor seat is provided with a measuring hole into which the measuring instrument column and the measuring instrument extend.
More preferably, a rotor sleeve is mounted at one end of the measuring hole, the pressure rotor is rotatably arranged in the rotor sleeve, two air charging holes are formed in the rotor sleeve, one of the air charging holes is inflated, the rear end face of the pressure rotor can be provided with thrust so as to enable the pressure rotor to push against the bearing, the other air charging hole is inflated, and the front end face of the pressure rotor can be provided with thrust so as to enable the pressure rotor to be separated from the bearing.
More preferably, the measuring seat is embedded with a linear bearing, and the measuring instrument cylinder is movably connected in the linear bearing.
Wherein the number of the linear bearings is two.
Preferably, the position of the guide wheels above the bearings is adjustable, so that the clamping gap between the two guide wheels can be adjusted.
More preferably, the Y-axis sliding table is detachably provided with a grinding wheel seat, the grinding mechanism motor is arranged on the grinding wheel seat, and the grinding wheel is arranged at one end of a main shaft of the grinding mechanism motor.
More preferably, the bed is covered with a shell.
More preferably, a movable door is arranged on the shell, and an observation window is arranged on the movable door.
The working principle of the invention is as follows: the bearing to be processed (actually referred to as an inner ring or an outer ring of the bearing) is fed into the positioning mechanism from the feeding mechanism, the bearing is clamped by the double guide wheels, the pressure rotor abuts against the rear end face of the bearing so that the front end of the bearing abuts against the baffle plate, the supporting block abuts against the side face of the bearing, the positioning mechanism motor drives the two guide wheels to rotate so as to drive the bearing to rotate, at the moment, if the inner diameter of the inner ring is to be processed, the Y-axis servo motor drives the Y-axis sliding table to move, so that the grinding wheel stretches into the inner ring to carry out reciprocating oscillating motion type grinding, meanwhile, the measuring instrument monitors the grinding condition of the inner diameter of the inner ring in real time at the rear, if the rollaway nest of the inner ring or the outer ring is to be processed, grinding wheels of different specifications are replaced, after the grinding wheel is worn, the grinding wheel is driven by the X-axis sliding table to move the trimming seat body, and therefore the diamond roller can trim the grinding wheel in a linear feeding mode.
The invention has the beneficial effects that: 1. the positioning mode is used for carrying out double-end-face positioning through double guide wheel clamping, the pressure rotor and the baffle, and is supported by the supporting blocks, so that shaking generated when the bearing rotates at a high speed can be reduced to a great extent, the positioning precision can be improved, the process requirements on the perpendicularity and concentricity of the bearing product are ensured, meanwhile, the curvature of a machined bearing groove is uniform, the contour shape is consistent, and the phenomenon that the appearance of the bearing product is damaged by pulling is avoided.
2. The screw guide rail is driven by the private motor to be used as a feeding mechanism for vibration grinding, so that the accuracy stability of long-time reciprocating vibration grinding can be effectively ensured, and compared with the conventional mode of adopting a hydraulic driving steel sleeve to perform linear feeding vibration grinding, the precision is better, the abrasion is difficult, and the service life is longer.
3. The grinding wheel is trimmed by adopting the diamond roller in a linear feeding mode, so that the trimming precision of the grinding wheel can be improved, the existing trimming method adopts a diamond pen to contact the grinding wheel at a single point, uses a rocker arm inverted table to trim the grinding wheel in a feeding mode, has low precision, generates larger error, and the single point contacts the grinding wheel to easily wear the diamond pen, so that the diamond pen needs to be replaced every shift, and the trimming mechanism of the device trims the grinding wheel to enable the shape of a bus on the grinding wheel to be more accurate, and the trimming mechanism self wear to be smaller.
4. Through changing the frock, only can accomplish inner circle raceway grinding process, outer lane raceway grinding process and inner circle internal diameter grinding process respectively on a set of equipment, improved production efficiency to a great extent, reduced manufacturing cost, can make the bearing precision of processing out reach P4, P2 level standard.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of a positioning mechanism according to an embodiment;
FIG. 3 is a schematic diagram of the position structure of the positioning mechanism and the bearing workpiece with the baffle removed in the embodiment;
FIG. 4 is a schematic side view of a measuring mechanism, a positioning mechanism, a bearing workpiece, and a grinding wheel in an embodiment;
fig. 5 is a schematic structural diagram of the machine tool according to the embodiment in which the machine tool is covered with the shell.
The reference numerals are:
1-lathe bed 2-bearing 3-X axial sliding table
4-Y axial sliding table 5-pushing cylinder 6 a-guide wheel
6 b-baffle 6 c-pressure rotor 6 d-supporting block
6 e-rotor seat 6 f-positioning mechanism motor 6 g-measuring hole
6 h-rotor sleeve 7 a-grinding wheel 7 b-grinding mechanism motor
7 c-Y axial guide rail 7 d-grinding wheel seat 8 a-measuring seat
8 b-measuring instrument column 8 c-measuring mechanism cylinder 8 d-measuring instrument
8 e-linear bearing 9 a-finishing seat 9 b-diamond roller
9 c-finishing mechanism motor 9 d-X axial guide rail 10 a-fixing seat
10 b-movable seat 10 c-tilting rod 10 d-unloading cylinder
11-a shell 12-a movable door 13-a viewing window.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention.
It should be noted in advance that, in the present invention, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in figures 1-5, the grinding equipment for the inner diameter of the inner ring and the outer ring of the bearing comprises a machine body 1, wherein a feeding mechanism, a positioning mechanism, a grinding mechanism, a measuring mechanism and a trimming mechanism are arranged on the machine body 1, the feeding mechanism, the positioning mechanism, the measuring mechanism and the trimming mechanism are all arranged on an X-axis sliding table 3, the grinding mechanism is arranged on a Y-axis sliding table 4, the X-axis sliding table 3 and the Y-axis sliding table 4 are both in sliding connection with the machine body 1, and the sliding directions are mutually perpendicular.
The feed mechanism comprises a feed chute (not shown in the drawings) and a pushing cylinder 5 arranged at the bottom of the feed chute, the pushing cylinder 5 being used for pushing the bearing 2 into the positioning mechanism.
The positioning mechanism comprises two guide wheels 6a used for clamping the bearing 2 and driving the bearing 2 to rotate, a baffle plate 6b positioned at the front end of the bearing 2, a pressure rotor 6c positioned at the rear end of the bearing 2 and a supporting block 6d used for propping against the side surface of the bearing 2, wherein the pressure rotor 6c is rotatably arranged on a rotor seat 6e, the pressure rotor 6c can prop against the bearing 2 from the rear end of the bearing 2 so that the front end of the bearing 2 props against the baffle plate 6b, the pressure rotor 6c can rotate along with the bearing 2, the baffle plate 6b is provided with a cutter passing hole coaxially arranged with the bearing 2, the two guide wheels 6a are respectively arranged above and below the bearing, the axes of the two guide wheels 2 are staggered mutually in the vertical direction, the supporting block 6d is positioned between the two guide wheels 6a, and the two guide wheels 6a are all in transmission connection with a transmission wheel which is in transmission connection with a positioning mechanism motor 6f through a transmission belt.
The grinding mechanism comprises a grinding wheel 7a which is arranged on a Y-axis sliding table 4 and used for grinding the bearing 2, the grinding wheel 7a is driven to rotate by a grinding mechanism motor 7b, the Y-axis sliding table 4 is in sliding connection with the lathe bed 1 through a Y-axis lead screw, a Y-axis guide rail 7c is also in sliding connection between the Y-axis sliding table 4 and the lathe bed 1, a Y-axis servo motor is connected with the Y-axis lead screw in a transmission manner, the Y-axis lead screw is driven to rotate through the Y-axis servo motor, and the Y-axis sliding table 4 can be driven to move along the Y-axis guide rail 7c, so that the grinding wheel 7a can reciprocate along the Y-axis direction.
The measuring mechanism comprises a measuring seat 8a arranged at the rear of the positioning mechanism, a measuring instrument cylinder 8b is movably connected to the measuring seat 8a, a measuring mechanism cylinder 8c for driving the measuring instrument cylinder 8b to move along the Y-axis direction is arranged on the measuring seat 8a, a measuring instrument 8d is arranged at the front end of the measuring instrument cylinder 8b, the measuring instrument cylinder 8b is driven to move through the measuring mechanism cylinder 8c, and the measuring instrument 8d can be moved to the rear of the bearing 2 in the positioning mechanism so as to measure the bearing 2.
The dressing mechanism comprises a dressing seat body 9a which is arranged on the X-axis sliding table 3 and is positioned at the front side of the positioning mechanism, a diamond roller 9b for dressing the grinding wheel 7a is arranged on the dressing seat body 9a, the diamond roller 9b is driven to rotate by a motor 9c of the dressing mechanism, the X-axis sliding table 3 is in sliding connection with the lathe bed 1 by an X-axis lead screw, an X-axis guide rail 9d is also in sliding connection between the X-axis sliding table 3 and the lathe bed 1, an X-axis servo motor is in transmission connection with the X-axis lead screw, the X-axis sliding table 3 can be driven to move along the X-axis guide rail 9d by driving the X-axis lead screw by the X-axis servo motor, and therefore the diamond roller 9b can dress the grinding wheel 7a in a linear feeding mode.
When the bearing inner and outer ring raceway and inner ring inner diameter grinding device provided in the above embodiment works, firstly, the bearing 2 to be processed (actually referred to as the inner ring or the outer ring of the bearing) is fed into the positioning mechanism from the feeding mechanism, the double guide wheels 6a clamp the bearing 2, the pressure rotor 6c abuts against the rear end face of the bearing 2 so as to enable the front end of the bearing 2 to abut against the baffle 6b, the supporting block 6d abuts against the side face of the bearing 2, the positioning mechanism motor 6f drives the two guide wheels 6a to rotate so as to drive the bearing 2 to rotate, at this moment, if the inner diameter of the inner ring is to be processed, the Y axial servo motor drives the Y axial sliding table 4 to move, so that the grinding wheel 7a stretches into the inner ring to perform reciprocating oscillation type grinding, meanwhile, the measuring instrument 8d monitors the grinding condition of the inner diameter of the inner ring in real time, if the raceway of the inner ring or the outer ring is to be processed, then the grinding wheel 7a of different specifications is replaced, and after the grinding wheel 7a is worn, the grinding wheel 3 drives the trimming seat 9a to move so that the diamond roller 9b can trim the grinding wheel 7a in a linear feeding mode.
The positioning mode of the equipment is that double-end-face positioning is carried out through the clamping of the double guide wheels 6a and the pressure rotor 6c and the baffle 6b, and the double-end-face positioning is supported by the supporting block 6d, so that the shaking generated when the bearing 2 rotates at a high speed can be reduced to a great extent, the positioning precision can be improved, the process requirements of the perpendicularity and concentricity of a bearing product are ensured, meanwhile, the curvature of a machined bearing groove is uniform, the contour shape is consistent, and the phenomenon that the appearance of the bearing product is pulled is avoided; in addition, the private motor is adopted to drive the screw guide rail to serve as a feeding mechanism for vibration grinding, so that the accuracy stability of long-time reciprocating vibration grinding can be effectively ensured, compared with the existing mode of adopting a hydraulic driving steel sleeve to conduct linear feeding vibration grinding, the accuracy is better, abrasion is difficult, and the service life is longer.
Therefore, the inner ring raceway grinding process, the outer ring raceway grinding process and the inner ring inner diameter grinding process can be finished on one set of equipment by replacing the tool, so that the production efficiency is greatly improved, the production cost is reduced, and the precision of the machined bearing can reach the P4 and P2 level standard.
Further, a fixed seat 10a is arranged on the X-axis sliding table 3, a guide wheel 6a positioned above a bearing is arranged on a movable seat 10b, the movable seat 10b is rotatably connected with the fixed seat 10a through a rotating shaft, a tilting rod 10c is fixedly connected to the movable seat 10b, a discharging cylinder 10d for pushing the tilting rod 10c downwards to enable the movable seat 10b to tilt upwards by taking the rotating shaft as a rotating center is arranged on the X-axis sliding table 3, the guide wheel 6a above the discharging cylinder can be lifted, and then a workpiece can be rolled out to discharge.
Preferably, the rotor seat 6e is provided with a measuring hole 6g into which the measuring cylinder 8b and the measuring cylinder 8d extend, one end of the measuring hole 6g is provided with a rotor sleeve 6h, the pressure rotor 6c is rotatably arranged in the rotor sleeve 6h, two air charging holes are formed in the rotor sleeve 6h, one of the air charging holes is inflated, a thrust force can be provided for the rear end face of the pressure rotor 6c so as to enable the pressure rotor 6c to push against the bearing 2, and the other air charging hole is inflated, a thrust force can be provided for the front end face of the pressure rotor 6c so as to enable the pressure rotor 6c to be separated from the bearing 2.
More preferably, the measuring seat 8a is embedded with a linear bearing 8e, and the measuring instrument column 8b is movably connected in the linear bearing 8e, wherein the number of the linear bearings 8e is two, the existing measuring instrument feeding measuring mode is double steel sleeve linear guide column feeding measurement, the structure is easy to wear the steel sleeve to cause a gap, so that the accuracy of measured data in the processing process is affected, in the embodiment, the linear bearing 8e is embedded to conduct linear feeding measurement through the measuring instrument column, the problem that the accuracy of measured data in the processing process of a product is insufficient can be well solved, and the process precision requirement of the product is met.
More preferably, the position of the guide wheel 6a above the bearing 2 is adjustable, so that the clamping gap between the two guide wheels 2 can be adjusted to meet the requirement of positioning the inner rings or the outer rings of the bearings with different specifications.
More preferably, the grinding wheel seat 7d is detachably mounted on the Y axial sliding table 4, the grinding mechanism motor 7b is mounted on the grinding wheel seat 7d, and the grinding wheel 7a is mounted at one end of a main shaft of the grinding mechanism motor 7b, so that the later disassembly, assembly and maintenance are facilitated.
In addition, in this embodiment, as shown in fig. 5, the bed 1 may further be covered with a housing 11, a movable door 12 may be provided on the housing 11, and an observation window 13 may be provided on the movable door 12.
The foregoing embodiments are preferred embodiments of the present invention, and in addition, the present invention may be implemented in other ways, and any obvious substitution is within the scope of the present invention without departing from the concept of the present invention.
In order to facilitate understanding of the improvements of the present invention over the prior art, some of the figures and descriptions of the present invention have been simplified, and some other elements have been omitted from this document for clarity, as will be appreciated by those of ordinary skill in the art.
Claims (7)
1. The inner diameter grinding equipment for the inner race and the outer race of the bearing comprises a lathe bed (1), and is characterized in that: the machine tool body (1) is provided with a feeding mechanism, a positioning mechanism, a grinding mechanism, a measuring mechanism and a trimming mechanism, wherein the feeding mechanism, the positioning mechanism, the measuring mechanism and the trimming mechanism are all arranged on an X-axis sliding table (3), the grinding mechanism is arranged on a Y-axis sliding table (4), and the X-axis sliding table (3) and the Y-axis sliding table (4) are both connected on the machine tool body (1) in a sliding manner and the sliding directions are mutually perpendicular;
the feeding mechanism comprises a feeding groove and a pushing cylinder (5) arranged at the bottom of the feeding groove, and the pushing cylinder (5) is used for pushing the bearing (2) into the positioning mechanism;
the positioning mechanism comprises two guide wheels (6 a) used for clamping the bearing (2) and driving the bearing (2) to rotate, a baffle plate (6 b) positioned at the front end of the bearing (2), a pressure rotor (6 c) positioned at the rear end of the bearing (2) and a supporting block (6 d) used for propping against the side surface of the bearing (2), wherein the pressure rotor (6 c) is rotatably arranged on a rotor seat (6 e), the pressure rotor (6 c) can prop against the bearing (2) from the rear end of the bearing (2) so that the front end of the bearing (2) props against the baffle plate (6 b), the pressure rotor (6 c) can rotate along with the bearing (2), cutter passing holes coaxially arranged with the bearing (2) are formed in the baffle plate (6 b), the two guide wheels (6 a) are respectively arranged above and below the bearing (2), the axes of the two guide wheels (6 a) are staggered with each other in the vertical direction, the supporting block (6 d) is positioned between the two guide wheels (6 a), and the two guide wheels (6 a) are connected with a transmission belt transmission mechanism through a transmission belt;
the grinding mechanism comprises a grinding wheel (7 a) which is arranged on a Y-axis sliding table (4) and is used for grinding a bearing (2), the grinding wheel (7 a) is driven by a grinding mechanism motor (7 b) to rotate, the Y-axis sliding table (4) is in sliding connection with the lathe bed (1) through a Y-axis lead screw, a Y-axis guide rail (7 c) is also in sliding connection between the Y-axis sliding table (4) and the lathe bed (1), a Y-axis servo motor is connected with the Y-axis lead screw in a transmission manner, the Y-axis lead screw is driven by the Y-axis servo motor to rotate, and the Y-axis sliding table (4) can be driven to move along the Y-axis guide rail (7 c), so that the grinding wheel (7 a) can reciprocate along the Y-axis direction;
the measuring mechanism comprises a measuring seat (8 a) arranged at the rear of the positioning mechanism, a measuring instrument cylinder (8 b) is movably connected to the measuring seat (8 a), a measuring mechanism cylinder (8 c) for driving the measuring instrument cylinder (8 b) to move along the Y-axis direction is arranged on the measuring seat (8 a), a measuring instrument (8 d) is arranged at the front end of the measuring instrument cylinder (8 b), the measuring instrument cylinder (8 c) drives the measuring instrument cylinder (8 b) to move, and the measuring instrument (8 d) can be moved to the rear of a bearing (2) in the positioning mechanism so as to measure the bearing (2);
the dressing mechanism comprises a dressing seat body (9 a) which is arranged on the X-axis sliding table (3) and is positioned at the front side of the positioning mechanism, a diamond roller (9 b) for dressing a grinding wheel (7 a) is arranged on the dressing seat body (9 a), the diamond roller (9 b) is driven to rotate by a motor (9 c) of the dressing mechanism, the X-axis sliding table (3) is in sliding connection with the lathe bed (1) through an X-axis screw, an X-axis guide rail (9 d) is also in sliding connection between the X-axis sliding table (3) and the lathe bed (1), an X-axis servo motor is connected with the X-axis screw in a transmission manner, the X-axis screw is driven to rotate by the X-axis servo motor, the X-axis sliding table (3) can be driven to move along the X-axis guide rail (9 d), so that the diamond roller (9 b) can dress the grinding wheel (7 a) in a linear feeding manner, a measuring hole (6 g) for a measuring cylinder (8 b) and a measuring instrument (8 d) to extend in is arranged on a rotor seat (6 e), one end (6 g) of the measuring hole (6 g) is also in sliding connection with the lathe bed (1), a rotor (6 c) can be provided with a pressure sleeve (6 h) in the rotor (6 c), and the pressure sleeve (6 c) can be provided with a pressure sleeve (6 h) in the pressure sleeve, and the pressure sleeve (6 h) can be provided with the pressure sleeve (6 h), the other inflation hole is inflated, and the thrust force can be provided for the front end surface of the pressure rotor (6 c) so as to separate the pressure rotor (6 c) from the bearing (2).
2. The bearing inner and outer race raceway and inner ring inner diameter grinding device of claim 1, wherein: the measuring seat (8 a) is internally embedded with a linear bearing (8 e), and the measuring instrument cylinder (8 b) is movably connected in the linear bearing (8 e).
3. The bearing inner and outer race raceway and inner ring inner diameter grinding device according to claim 2, characterized in that: the number of the linear bearings (8 e) is two.
4. A bearing inner and outer race raceway and inner race inner diameter grinding apparatus according to claim 3, characterized in that: the position of the guide wheel (6 a) above the bearing (2) is adjustable, so that the clamping gap between the two guide wheels (6 a) can be adjusted.
5. The bearing inner and outer race track and inner race inner diameter grinding apparatus of claim 4 wherein: the Y-axis sliding table (4) is detachably provided with a grinding wheel seat (7 d), the grinding mechanism motor (7 b) is arranged on the grinding wheel seat (7 d), and the grinding wheel (7 a) is arranged at one end of a main shaft of the grinding mechanism motor (7 b).
6. The bearing inner and outer race track and inner race inner diameter grinding apparatus of claim 5 wherein: the machine body (1) is covered with a shell (11).
7. The bearing inner and outer race track and inner race inner diameter grinding apparatus of claim 6 wherein: the shell (11) is provided with a movable door (12), and the movable door (12) is provided with an observation window (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910427435.7A CN110000661B (en) | 2019-05-22 | 2019-05-22 | Bearing inner and outer ring rollaway nest and inner ring internal diameter grinding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910427435.7A CN110000661B (en) | 2019-05-22 | 2019-05-22 | Bearing inner and outer ring rollaway nest and inner ring internal diameter grinding equipment |
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| CN110000661A CN110000661A (en) | 2019-07-12 |
| CN110000661B true CN110000661B (en) | 2023-12-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114454077B (en) * | 2022-01-25 | 2022-12-13 | 浙江神龙轴承有限公司 | Bearing polishing equipment |
| CN115533698A (en) * | 2022-09-28 | 2022-12-30 | 重庆大学 | Variable cross section jar internal wall grinding device |
Citations (4)
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|---|---|---|---|---|
| US5363598A (en) * | 1990-09-20 | 1994-11-15 | Toyoda Koki Kabushiki Kaisha | Machine tool capable of grinding a workpiece with a truing apparatus |
| CN102371522A (en) * | 2011-12-05 | 2012-03-14 | 濮阳贝英数控机械设备有限公司 | Grinding device and method for bearing outer ring raceway |
| CN104889863A (en) * | 2015-05-13 | 2015-09-09 | 秦川机床工具集团股份公司 | Large high-accuracy gear composite grinding center |
| CN105690192A (en) * | 2016-03-25 | 2016-06-22 | 洛阳亨基智能数控装备科技有限公司 | High-precision numerical control cylindrical roller grinding machine |
-
2019
- 2019-05-22 CN CN201910427435.7A patent/CN110000661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5363598A (en) * | 1990-09-20 | 1994-11-15 | Toyoda Koki Kabushiki Kaisha | Machine tool capable of grinding a workpiece with a truing apparatus |
| CN102371522A (en) * | 2011-12-05 | 2012-03-14 | 濮阳贝英数控机械设备有限公司 | Grinding device and method for bearing outer ring raceway |
| CN104889863A (en) * | 2015-05-13 | 2015-09-09 | 秦川机床工具集团股份公司 | Large high-accuracy gear composite grinding center |
| CN105690192A (en) * | 2016-03-25 | 2016-06-22 | 洛阳亨基智能数控装备科技有限公司 | High-precision numerical control cylindrical roller grinding machine |
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