CN102211299A - CNC (Computerized Numerical Control) automatic internal grinding machine for bearing ring - Google Patents
CNC (Computerized Numerical Control) automatic internal grinding machine for bearing ring Download PDFInfo
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- CN102211299A CN102211299A CN2011100929527A CN201110092952A CN102211299A CN 102211299 A CN102211299 A CN 102211299A CN 2011100929527 A CN2011100929527 A CN 2011100929527A CN 201110092952 A CN201110092952 A CN 201110092952A CN 102211299 A CN102211299 A CN 102211299A
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- bearer ring
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Abstract
The invention relates to a CNC (Computerized Numerical Control) automatic internal grinding machine for a bearing ring. The internal grinding machine comprises a lathe body, a reciprocating worktable, a grinding wheel shaft assembly, a workpiece axle box, a grinding wheel dresser, a longitudinal feed transmission mechanism, a transverse feed transmission mechanism, a cooling system, a hydraulic lubrication system, a CNC control system host and operating panel, and an electrical control system, wherein the reciprocating worktable, the grinding wheel dresser and the workpiece axle box are arranged on the lathe body; the grinding wheel shaft assembly is arranged on the reciprocating worktable; the longitudinal feed transmission mechanism and the hydraulic lubrication system are arranged inside the lathe body; the transverse feed transmission mechanism is arranged on a grinding wheel seat; the cooling system and the electrical control system are arranged at the rear side of the lathe body; the CNC control system host and operating panel is arranged above the reciprocating worktable; and the reciprocating worktable is arranged on a guide rail of the lathe body. The CNC automatic internal grinding machine for the bearing ring, provided by the invention, has the outstanding advantages of simple and compact structure, strong static and dynamic rigidities, locating precision, good performances of anti-vibration and vibration reduction, good precision retentivity, light friction and abrasion, long service life, easiness for operation and maintenance, safety, saving energy, environment friendliness, attractive appearance and the like.
Description
Technical field
The present invention relates to bearing series products process equipment, relate in particular to a kind of bearer ring internal grinder.
Background technology
Present bearing industry is used for the internal grinding of bearing series products and processes employed equipment, and majority is a plain grinding machine internal, and it fastens five sixties of century Soviet Union's formula internal grinder imitation products.Also have the raceway grinder of sub-fraction for the exploitation of the seventies and eighties in last century, its structural behaviour can't satisfy current bearing production demand, in the assault problem that shows aspect the product processing be: (1) product processing dimension scope is less than normal, generally in Ф 500mm.(2) wide-angle endoporus and end face raceway lack process equipment.(3) positioning accuracy and rotating accuracy are low, and dynamic stiffiness is poor, cause institute's converted products dimensional accuracy, shape and site error, and surface accuracy all can't satisfy the product quality requirement, have to increase the super Seiko preface of polishing.(4) lathe rigidity deficiency can not be carried out high-speed powerful grinding processing.(5) fretting wear causes that the machine tool accuracy retentivity is poor, fault is many, service life is low.(6) the anchor clamps positioning accuracy is low, and installation way influences converted products dimensional accuracy and shaped position precision.(7) grinding wheel spindle has limited rotating speed, the efficient that can't improve processing and surface accuracy because of influences such as structure, the accuracy of manufacture, cooling and lubricating mode, dynamic balancing.(8) measure and the repeated clamping error in the product processing, the size dispersion degree when influencing the manufacturing batch product is unfavorable for size grouping apolegamy trap.(9) for the large spherical surface roller, large cylindrical and conical bearing outer-race ball track convexity, large-scale outer shroud rib, special-shaped outer-race ball track lacks correct grinding equipment.(10) the lathe protection effect is poor, and the fuel tank infiltration is leaked, ground splash cutting fluid, and protector can not effectively protect when emery wheel is broken.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, applicability is strong, the range of work is wide, high accuracy, high efficiency, easy to operate, stable performance, the automatic bearer ring internal grinder of numerical control reliable, long service life.
The technical scheme that the present invention is adopted for achieving the above object is: the automatic bearer ring internal grinder of a kind of numerical control, comprise lathe bed, carriage, the grinding wheel spindle assembly, the workpiece axle box, dresser, the length feed transmission mechanism, cooling system, oil pumping system, CNC control system main frame and guidance panel, electric control system, described carriage, workpiece axle box and dresser are installed on the lathe bed, the grinding wheel spindle assembly is installed on the carriage, the length feed transmission mechanism, oil pumping system is installed on lathe bed inside, the traverse feed transmission mechanism is installed on grinding wheel stand inside, cooling system and electric control system are positioned at the lathe bed rear side, CNC control system main frame and guidance panel are positioned at the carriage top, and the working in reciprocating mode pedestal is on bed ways.
Described workpiece axle box right-hand member is equipped with electric magnetic no-core clamp.
Described grinding wheel spindle assembly comprises grinding wheel stand, grinding wheel drive mitor, grinding wheel spindle and emery wheel, and grinding wheel drive mitor is installed on the grinding wheel spindle back, and emery wheel is installed on the grinding wheel spindle left end.
Described length feed transmission mechanism and traverse feed transmission mechanism comprise servomotor, shaft coupling and ball-screw, and servomotor is connected with ball-screw by shaft coupling.
Described workpiece spindle upper box part is provided with the workpiece spindle transmission system, and the workpiece spindle lower box part is provided with workpiece axle box angle scale.
The guide rail of described lathe bed is the hydrostatic slideway that is provided with the static pressure groove.
Described emery wheel assembly below is installed on the planker, on the carriage of planker below emery wheel axle bed angle scale is installed, and carriage rail is for intersecting the roller rolling guide.
Lathe bed is provided with length feed handwheel and hydrodynamic lubrication operating mechanism.
The grinding wheel spindle assembly is provided with traverse feed handwheel and grating chi.
On the described workpiece axle box plug-type protective cover is installed, the electric magnetic no-core clamp front end is equipped with the Integrated Chip pallet.
The automatic bearer ring internal grinder of numerical control of the present invention, simple and compact for structure, static state and dynamic stiffiness are strong, accurate positioning, the antivibration vibration damping is good, precision stability is good, fretting wear is light, long service life, easy to operate, easy-maintaining, also have safety, energy-saving and environmental protection, an outstanding advantage such as attractive in appearance.Converted products size and adaptive form scope be wide, be fit to processing endoporus, outer shroud endoporus cylinder, circular cone, sphere, end face raceway, can carry out lip grinding and track convex degree grinding, institute's converted products dimensional accuracy, shaped position precision, surface accuracy all are greatly improved, has the high-accuracy high-efficiency rate, outstanding features such as batch machining size dispersion degree is easy to control, be particularly suitable for many kinds, use in medium batch bearing bore diameter and outer-race ball track precision, half accurate grinding.
Description of drawings
Fig. 1 is the automatic bearer ring internal grinder of numerical control of the present invention master TV structure figure.
Fig. 2 is that the automatic bearer ring internal grinder of numerical control of the present invention is horizontal, the structure chart of length feed transmission mechanism.
The specific embodiment
The automatic bearer ring cylindrical grinder of numerical control of the present invention structure as shown in Figure 1, comprise lathe bed 20, carriage 19, grinding wheel spindle assembly, workpiece axle box 7, dresser 10, length feed transmission mechanism, traverse feed transmission mechanism, cooling system, oil pumping system, CNC control system main frame and guidance panel 15, electric control system, described carriage 19, workpiece axle box 7 and dresser 10 are installed on the lathe bed 20, the grinding wheel spindle assembly is installed on the carriage 19, and the grinding wheel spindle assembly is provided with traverse feed handwheel 16 and grating chi; Length feed transmission mechanism, oil pumping system are installed on lathe bed 20 inside, cooling system and electric control system are installed on lathe bed 20 rear sides, the traverse feed transmission mechanism is installed in the grinding wheel stand 18, the built-in labyrinth type dividing plate of tank for coolant volume super large of cooling system, and be provided with the magnetic water separation device, guarantee cooling fluid abundance, cleaning, good heat dissipation effect.CNC control system main frame and guidance panel 15 are positioned at carriage 19 upper right side, and 19 of carriages are on lathe bed 20 guide rails.
Lathe bed 1 is the monoblock cast of high-strength abrasion-proof cast iron, through twice Ageing Treatment, the guide rail of lathe bed 20 is widened than same specification product guide pass, span strengthens between two guide rails, on guide pass, produce the static pressure groove, be hydrostatic slideway, and implemented the independent fuel feeding in branch chamber, the processing of lathe bed 1 working face of guide rail correct grinding is after smart scraping processing.The positioning accuracy height, running resistance is little, bearing capacity is strong, operate steadily, do not have fretting wear, precision stability is good, the antivibration damping property is arranged preferably, increase the service life.Lathe bed 20 is provided with length feed handwheel 1, is used for the position of manual fine-tuning joint carriage 20.Lathe bed 20 is provided with dresser hydraulic control mechanism 2.
Place grinding wheel spindle planker angle scale, grinding wheel spindle planker on carriage 19, transverse feed mechanism drives the grinding wheel spindle assembly and moves.Be provided with one below the grinding wheel spindle planker and can make in 360 ° of scopes of grinding wheel spindle level and adjust emery wheel axle bed angle scale at any angle, carry out big tapering endoporus easily, inclined-plane and end face, the processing of end face raceway plunge-cutting.The grinding wheel spindle assembly comprises grinding wheel stand 18, grinding wheel drive mitor 14, grinding wheel spindle 13 and emery wheel 12, and grinding wheel drive mitor 14 is installed on grinding wheel spindle 13 rear sides, and emery wheel 12 is installed on grinding wheel spindle 13 left ends.Carriage rail is for intersecting the roller rolling guide, and imposes to give and add load, accurate positioning, operate steadily, the precision maintenance is good, bearing capacity is strong.Its grinding wheel spindle assembly radially reaches axial location supporting and is two groups and has applied the angular contact ball bearing that gives application of load, the positioning accuracy height, and the revolution rigidity is strong, need not in the use to adjust, and the automatic backlash compensation is arranged.The running element of its grinding wheel spindle assembly is all done whole dynamic balancing with axle, and the lubricated and high pressure air cooling way of high-pressure fog is adopted in lubricated and cooling, and friction can be carried out high-speed grinding, axle revolution 900r/min; Grinding speed 60m/s.
Workpiece axle box 7 tops are provided with workpiece spindle transmission system 8, lathe bed 20 left end workpiece axle boxes 7 bottoms are provided with workpiece axle box angle scale 5, workpiece axle box angle scale 5 can make workpiece spindle revolution axial line horizontal adjusting carry out the grinding of wide-angle taper hole for 27 °, bigger than the like product orifice angle of comparing in the grinding, suitable converted products type is wider.Workpiece axle box 7 is positioned at above the workpiece axle box angle scale 5, and workpiece spindle transmission system 8 is by frequency control motor, reductor and one group of workpiece spindle transmission system that pulley concial disk is formed.Its workpiece spindle front end positioning support is a heavy wool wedge hybrid sliding bearing, the oil supply system that its hydraulic oil is made up of special fuel tank, oil filter, the quantitative Swing line oil pump of level pressure and pressure switch is supplied with, it is adjustable that hybrid sliding bearing is mated between axle journal fit clearance, and static pressure starts, the dynamic pressure running, the positioning accuracy height, no fretting wear, precision stability is good, and stronger dynamic stiffiness is arranged, stronger antivibration vibration-damping function is arranged, be fit to the powerful grinding of high accuracy.Its radial and axial positioning support in workpiece spindle rear end is one group and applied the angular contact ball bearing that gives application of load, and positioning accuracy height, revolution rigidity are strong, need not in the use to adjust.Its workpiece spindle power driving belt wheel is equipped with relief arrangement, and the radial load that belt pull is produced does not have influence to the spindle operation precision, and assurance main shaft precision is on-stream not to be lowered.
Having between lathe bed 20 internal guide rails and grease-box, transmission system leaks or cooling fluid may occur refluxes and enters phenomenon in the body, make the anti-boss frame that leaks, guarantee that cutting fluid can not sneak into fuel tank, not infiltrate in the drivetrain components, be installed on 10 of dressers on the dresser seat 3 on lathe bed 20 platforms in lathe bed reciprocating table 19 rear side centre positions.
Workpiece axle box 7 right-hand members are equipped with electric magnetic no-core clamp 6, link with workpiece spindle, it is made up of anchor clamps housing, iron core, coil, floral disc, positioning support pad and fulcrum, the converted products radial location is retrained separately by fixed pivot, not influenced by the anchor clamps alignment error and the accuracy of manufacture, repeat to install the assurance datum coincidence.Plug-type protective cover 4 is installed on the workpiece axle box 7, is high strength totally enclosed type push-and-pull guard shield, the protection wide coverage, safety coefficient is big, and good looking appearance is easy to use.Electric magnetic no-core clamp 6 front ends are equipped with Integrated Chip pallet 9.
The horizontal and vertical feeding transmission mechanism of lathe structure as shown in Figure 2, carriage 19 and grinding wheel spindle planker are vertically and tangential back and forth by a cover two-axle interlocking, closed-loop control digital control system and the transmission system drives be made up of servomotor 21, shaft coupling 22 and ball-screw 25.Servomotor 21 is connected with ball-screw 25 by shaft coupling 22, and ball-screw 25 is equipped with leading screw seat 23 near shaft coupling 22 1 ends, and ball-screw 25 is provided with nut seat 24, drives carriage or grinding wheel stand and moves.Can make all kinds bearer ring raceway on program that sets by the CNC control system in the product grinding process and any internal diameter of being imported of parameter grinding and end face, the inner conical surface, the transmission accuracy height, size is accurate, can adapt to various dissimilar ditch profile shaft carrier ring raceway plane difference and add the worker, also can repair forming grinding wheel with the parameter of input by setup program, carry out the cut-in type plunge grinding.
Its CNC main frame and control panel 15 hang on lathe bed 20 upper right side, concentrate digital display screen, indicator lamp, lighted push button are eye-catching in one, running status clear display.Control is convenient, tracing and monitoring comes into plain view, and can prevent maloperation, have automatic control interlocking and automatic fault to detect and the automatic shutdown protection function.
The automatic bearer ring internal grinder of numerical control of the present invention design parameter chooses and all elements, accessory all meet national security, environmental protection standard, meets national existing technical standard.Safety and environmental protection makes things convenient for element, accessory to change.
The automatic bearer ring internal grinder of numerical control of the present invention is simple and compact for structure, precision is high, static rigidity and dynamic stiffiness is strong, precision stability is good, simple to operate, fault is few, long service life.The present invention has filled up the large scale scope, the blank of big tapering endoporus automatic grinding bearer ring endoporus, suitable machining bearing product type is wider, its converted products dimensional accuracy, shape and positional precision and surface accuracy all are higher than same category of device, the size dispersion degree is little, be convenient to the trap of dividing into groups, be particularly suitable for many kinds, medium batch bearer ring endoporus and outer-race ball track, the powerful accurate automatic grinding use of end face raceway high speed.
Claims (10)
1. automatic bearer ring internal grinder of numerical control, it is characterized in that: comprise lathe bed (20), carriage (19), the grinding wheel spindle assembly, workpiece axle box (7), dresser (10), the length feed transmission mechanism, cooling system, oil pumping system, CNC control system main frame and guidance panel (15), electric control system, described carriage (19), workpiece axle box (7) and dresser (10) are installed on the lathe bed (20), the grinding wheel spindle assembly is installed on the carriage (19), the length feed transmission mechanism, oil pumping system is installed on lathe bed (20) inside, the traverse feed transmission mechanism is installed on grinding wheel stand (18) inside, cooling system and electric control system are positioned at lathe bed (20) rear side, CNC control system main frame and guidance panel (15) are positioned at carriage (19) top, and carriage (19) seat is on lathe bed (20) guide rail.
2. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1 is characterized in that: described workpiece axle box (7) right-hand member is equipped with electric magnetic no-core clamp (6).
3. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1, it is characterized in that: described grinding wheel spindle assembly comprises grinding wheel stand (18), grinding wheel drive mitor (14), grinding wheel spindle (13) and emery wheel (12), grinding wheel drive mitor (14) is installed on grinding wheel spindle (13) back, and emery wheel (12) is installed on grinding wheel spindle (13) left end.
4. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1, it is characterized in that: described length feed transmission mechanism and traverse feed transmission mechanism comprise servomotor (21), shaft coupling (22) and ball-screw (25), and servomotor (21) is connected with ball-screw (25) by shaft coupling (22).
5. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1 is characterized in that: described workpiece axle box (7) top is provided with workpiece spindle transmission system (8), and workpiece axle box (7) bottom is provided with workpiece axle box angle scale (5).
6. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1 is characterized in that: the guide rail of described lathe bed (20) is the hydrostatic slideway that is provided with the static pressure groove.
7. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1, it is characterized in that: described emery wheel assembly below is installed on the planker, on the carriage (19) of planker below emery wheel axle bed angle scale is installed, carriage rail is for intersecting the roller rolling guide.
8. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1 is characterized in that: lathe bed (20) is provided with length feed handwheel (1) and hydrodynamic lubrication operating mechanism (2).
9. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1 is characterized in that: the grinding wheel spindle assembly is provided with traverse feed handwheel (16) and grating chi.
10. the automatic bearer ring internal grinder of a kind of numerical control according to claim 1 is characterized in that: plug-type protective cover (4) is installed on the described workpiece axle box (7), and electric magnetic no-core clamp (6) front end is equipped with Integrated Chip pallet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100929527A CN102211299A (en) | 2011-04-14 | 2011-04-14 | CNC (Computerized Numerical Control) automatic internal grinding machine for bearing ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100929527A CN102211299A (en) | 2011-04-14 | 2011-04-14 | CNC (Computerized Numerical Control) automatic internal grinding machine for bearing ring |
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| CN102211299A true CN102211299A (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100929527A Pending CN102211299A (en) | 2011-04-14 | 2011-04-14 | CNC (Computerized Numerical Control) automatic internal grinding machine for bearing ring |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554723A (en) * | 2012-02-21 | 2012-07-11 | 上海机床厂有限公司 | Numerical control deep hole internal grinder |
| CN103182664A (en) * | 2011-12-29 | 2013-07-03 | 上海联合滚动轴承有限公司 | Transverse reciprocating grinding method for cone angle raceway of bearing race |
| CN104044046A (en) * | 2013-03-14 | 2014-09-17 | 昆山齐升磨料磨具有限公司 | Novel grinding tool equipment |
| CN106863064A (en) * | 2015-12-11 | 2017-06-20 | 都江堰市大阳量具有限公司 | A kind of numerical control calliper grinding machine |
| CN107598716A (en) * | 2017-08-31 | 2018-01-19 | 安徽工程大学 | One kind automation Multi-station precision bearing processing apparatus |
| CN109048524A (en) * | 2018-09-04 | 2018-12-21 | 横店集团东磁股份有限公司 | A kind of ferrite inner hole machining equipment |
| CN112809466A (en) * | 2021-01-07 | 2021-05-18 | 中国航发哈尔滨轴承有限公司 | Tool and method applied to grinding of inner surface of aviation bearing with large major diameter |
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| JP2007276032A (en) * | 2006-04-05 | 2007-10-25 | Okuma Corp | Grinding machine |
| CN202070962U (en) * | 2011-04-14 | 2011-12-14 | 大连沃飞亚装备制造有限公司 | Internal grinding machine of numerically controlled automatic bearing ring |
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Patent Citations (4)
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| CN2671748Y (en) * | 2004-02-10 | 2005-01-19 | 无锡开源机床集团有限公司 | X-shaft feeding structure of internal grinding machine |
| JP2007276032A (en) * | 2006-04-05 | 2007-10-25 | Okuma Corp | Grinding machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182664A (en) * | 2011-12-29 | 2013-07-03 | 上海联合滚动轴承有限公司 | Transverse reciprocating grinding method for cone angle raceway of bearing race |
| CN102554723A (en) * | 2012-02-21 | 2012-07-11 | 上海机床厂有限公司 | Numerical control deep hole internal grinder |
| CN104044046A (en) * | 2013-03-14 | 2014-09-17 | 昆山齐升磨料磨具有限公司 | Novel grinding tool equipment |
| CN106863064A (en) * | 2015-12-11 | 2017-06-20 | 都江堰市大阳量具有限公司 | A kind of numerical control calliper grinding machine |
| CN107598716A (en) * | 2017-08-31 | 2018-01-19 | 安徽工程大学 | One kind automation Multi-station precision bearing processing apparatus |
| CN109048524A (en) * | 2018-09-04 | 2018-12-21 | 横店集团东磁股份有限公司 | A kind of ferrite inner hole machining equipment |
| CN112809466A (en) * | 2021-01-07 | 2021-05-18 | 中国航发哈尔滨轴承有限公司 | Tool and method applied to grinding of inner surface of aviation bearing with large major diameter |
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Application publication date: 20111012 |