CN101293316A - Method and apparatus for processing positive displacement drill bearing - Google Patents
Method and apparatus for processing positive displacement drill bearing Download PDFInfo
- Publication number
- CN101293316A CN101293316A CNA2008100500562A CN200810050056A CN101293316A CN 101293316 A CN101293316 A CN 101293316A CN A2008100500562 A CNA2008100500562 A CN A2008100500562A CN 200810050056 A CN200810050056 A CN 200810050056A CN 101293316 A CN101293316 A CN 101293316A
- Authority
- CN
- China
- Prior art keywords
- bearing
- workpiece
- blank
- roller
- moulding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a method and a device for processing a bearing of a screw drill. The method adopts cold-rolling technique to process, firstly, an external sleeve blank or an internal sleeve blank of the bearing are processed; then the bearing of the screw drill is coldly rolled; a hydraulic oil cylinder (1) pushes a rolling wheel (7) to move downwards to be contacted with the bearing blank arranged on a rolling core roller (10) by pressurizing, thus lead the rolling wheel (7) to be parallel with the central shaft of the rolling core roller (10) and lead the rolling core roller to be contacted with the drive wheel (12) of a rotating mechanism; a coupler (14) connected with a motor (16) by a reducer drives the drive wheel and a driven wheel (13) to lead the rolling core roller to rotate; the rolling wheel (7) continuously puts pressure on the bearing blank until the bearing blank is deformed to achieve workpiece shaping standard. The invention can remarkably improve the surface fatigue intensity of a part, can eliminate a lathe machining process and can lead the utilization rate of materials to be improved from the former 45 percent to over 75 percent, which leads the power consumption of the device to be greatly reduced.
Description
Technical field
The present invention relates to the processing technique field of bearing, be particularly useful for a kind of method and device of processing positive displacement drill bearing.
Background technology
At present, in mechanical industry, the processing positive displacement drill bearing prior art generally adopts: round steel is become bearing outside collar and inside race blank through the whole footpath of heats forged.By lathe bearing outside collar and inside race blank are carried out multitool turning then, be divided into four processes usually: at first, the black oxidation skin turning of forging qualified blank surface is fallen.With plane wherein is another plane of benchmark turning and interior circle, and another plane of car and cylindrical conversely are commonly called as rough turn then.Secondly, rough turn blank is later repeated a last process, be commonly called as finish turning.Once more, for the edge of work sharp in handling process is unlikely to handle incised wound and convenient the installation, then need its chamfering shieldization.At last, be benchmark turning core position--R raceway with the plane cylindrical, returned another R that sends a car afterwards.
Because technical level of operators or equipment break down, and in forging process, cause blank workpiece deformation, surface that factors such as dell crimping are arranged easily, make blank not meet dimensional requirement and cause scrapping.Particularly there are a lot of problems: in the 1. rough turn process at turning bearing outside collar and inside race blank, crimping and dell often appear in datum level, select the bad workpiece that directly causes to scrap,, cost is increased easy destruction of the alloy cutter head in a flash of contact because oxide skin spreads all over surface of the work.2. in the finish turning process, the oxide skin on most of blank surface is fallen by car when rough turn, but does not also have car to arrive preliminary dimension, continues turning material and electric power resource are wasted.3. shield process rhythm is very fast, and the people sets about injured easily in fatigue state.4. turning R raceway is the most difficult most important parts in the process, thus the too fast acceleration of the big heating of cutter turning area tool damage.Turning R raceway is the place of waste material, and the expense iron of generation accounts for whole more than 50% of iron of blank expense.
Summary of the invention
For solving the problem that prior art exists, the purpose of this invention is to provide a kind of method and device of processing positive displacement drill bearing; Can significantly improve the surface fatigue intensity of part and the sensitiveness of the tired breach of reduction, cancel loaded down with trivial details machined into process, thereby improved the quality of products.The utilization rate that makes material is brought up to more than 75% by former 45%, makes scrappage directly drop to zero, and the power consumption of equipment is significantly reduced, and meets the spirit of national energy-saving and emission-reduction.
For achieving the above object, the present invention adopts technical scheme as described below:
A kind of method of processing positive displacement drill bearing is to adopt cold roll processes positive displacement drill bearing, and its step is as follows:
1), the external sleeve blank or the interior cover blank of machining bearing: adopt the strong material 55SiMoVA round steel of plasticity, diameter is at Φ 60mm-Φ 140mm; Round steel is calculated length according to the model of drilling tool bearing be cut into segment with sawing machine, it being put into the stove the inside is heated to about the 500-700 degree again, take out then with pneumatic hammer and forge circlewise, with staving press the whole footpath of the height of interior circle, cylindrical is expanded to the bearing outside blank or the bearing inner sleeve blank of preliminary dimension again; The overcoat external diameter of model of the same race and interior cover external diameter be than old-fashioned little 8%-30%, few 30%-50% that weight ratio is old-fashioned; Supporting drilling tool bearing designation is:
The heavy 2.61-4.00KG of the material of 244 type outer collar; The heavy 1.72-2.76KG of the material of inside race;
The heavy 1.45-2.38KG of the material of 215 type outer collar; The heavy 1.20-2.04KG of the material of inside race;
The heavy 1.31-2.18KG of the material of 203 type outer collar; The heavy 0.99-1.74KG of the material of inside race;
The heavy 1.41-2.20KG of the material of 197 type outer collar; The heavy 0.92-1.64KG of the material of inside race;
The heavy 0.95-1.68KG of the material of 172 type outer collar; The heavy 0.65-1.26KG of the material of inside race;
The heavy 0.88-1.59KG of the material of 165 type outer collar; The heavy 0.60-1.19KG of the material of inside race;
The heavy 0.30-0.77KG of the material of 120 type outer collar; The heavy 0.22-0.51KG of the material of inside race;
2), cold roll positive displacement drill bearing: at normal temperatures and pressures, hydraulic jack promote rolling wheel move down with roll the core roller on the bearing blank placed exert pressure and contact, guarantee rolling wheel and roll core roller central axes, and make and roll the sliding iron of core roller by the V-type line slideway and contact with the driving wheel of rotating mechanism; The shaft coupling that motor via reducer connects drives driving wheel and secondary driving wheel and makes and roll the rotation of core roller, roll the core roller by and bearing blank between frictional force drive bearing blank and rotate, the friction between bearing blank and the rolling wheel drives the rolling wheel rotation again; Under the promotion of feed system, rolling wheel dwindles the centre-to-centre spacing that rolls between core roller and the rolling wheel by bearing blank is exerted pressure continuously gradually simultaneously, reaches cylindrical moulding standard until distortion and finishes; Through rolling the workpiece of distortion, it is big that external diameter becomes, and wall thickness reduces, axially broadening slightly;
A. cold roll drilling tool bearing outside: hydraulic jack and motor driving bearing overcoat rolling wheel, driving wheel and bearing outside respectively roll the core roller, to 55SiMoVA bearing outside blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing outside successively under the reset condition;
B. cold roll drilling tool bearing inner sleeve: hydraulic jack and motor respectively in the driving bearing cover rolling wheel, driving wheel and bearing inner sleeve roll the core roller, to 55SiMoVA bearing inner sleeve blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing inner sleeve successively under the reset condition.
A kind of device of processing positive displacement drill bearing has circle shaping mechanism, rotating mechanism, cooling body and frame in propulsive mechanism, excircle of workpiece roller-compaction mechanism, the workpiece; Frame is doorframe shape, and the propulsive mechanism that upper rack is provided with connects excircle of workpiece roller-compaction mechanism; The both sides V-type line slideway mechanism of central rack is provided with circle shaping mechanism in the workpiece moving up and down; The bearing workpiece blank that rolls the setting of core roller shaping area of circle shaping mechanism is corresponding with the rolling wheel shaping area of the excircle of workpiece roller-compaction mechanism that moves down in the workpiece; The driving wheel and the secondary driving wheel that roll the rotating mechanism that core roller and frame lower be provided with of bearing workpiece blank both sides are corresponding; The circle shaping mechanism is provided with cooling body to the cold roll of workpiece bearing blank in excircle of workpiece roller-compaction mechanism and the workpiece, and bearing workpiece blank one side is provided with the cylindrical moulding and measures system.
The device of described a kind of processing positive displacement drill bearing, propulsive mechanism is made of by push rod screwed connection c shape framework the hydraulic jack that is fixed on the frame; C shape framework is made of by bolt connection-core axis fixing plate respectively the two ends of pressure plate, and the pressure plate center is provided with the silk hole that connects push rod; Push rod also can be set to bulb, and its c shape framework pressure plate centre bore also can be corresponding saturating sphere hole, inserts that push rod in the sphere hole is with fixed head outward and by being bolted on the pressure plate; C shape framework also can be cast into one.
The device of described a kind of processing positive displacement drill bearing, rotating mechanism by motor connect reductor by shaft coupling with pass frame on the driving wheel ring flange axle of the self-aligning roller bearing fixed be connected; By screwed connection, and fix between the wheel shaft of driving wheel and the secondary driving wheel by pin; The both sides ring flange of driving wheel and secondary driving wheel is fixedlyed connected by screw respectively, and secondary driving wheel ring flange axle is fixed on the self-aligning roller bearing of frame.
The device of described a kind of processing positive displacement drill bearing, V-type line slideway mechanism is made of sliding iron, back-moving spring and guide rail, and sliding iron center fixation has spacing mandrel, and sliding iron both sides are V-shaped to be contacted with V-type rail, and V-type rail is fixed on the frame; Sliding iron lower end is provided with back-moving spring.
The device of described a kind of processing positive displacement drill bearing, excircle of workpiece roller-compaction mechanism is made of rolling wheel mandrel, bearing, rolling wheel, and the rolling wheel mandrel is fixed on two mandrel fixed heads of c shape framework, and has locking nut to fix; Two cover self-aligning thrust roller bearings on the rolling wheel mandrel, two cover roller bearings are provided with a lining, and lining is with rolling wheel outward, and has locking nut to fix; Be provided with the cylindrical forming tank of bearing outside in the middle of the rolling wheel cylindrical, be provided with the height moulding h of bearing in the forming tank, outward through moulding Φ 1 and chamfering moulding α, chamfering is right angle or arc angle. Forming tank in the middle of the rolling wheel cylindrical also can be set to the cylindrical forming tank of bearing inner sleeve, comprising: the height moulding h of bearing, outward through moulding Φ 1, double channel moulding R.
The device of described a kind of processing positive displacement drill bearing, the circle shaping mechanism is by rolling the core roller and spacing mandrel constitutes in the workpiece, roll the two cover ball bearings that are provided with in the axis hole of core roller two ends and be connected and fixed spacing mandrel respectively and move spacing mandrel, the fixing spacing mandrel and the other end that moves spacing mandrel are fastened on respectively on the sliding iron of the V-type line slideway that the central rack both sides are provided with; Roll the middle interior round forming tank that is provided with bearing outside of core roller, be provided with double channel moulding R round in the bearing, interior in the forming tank through moulding Φ 2; The forming tank that rolls core roller centre also can be set to the interior round forming tank of bearing inner sleeve, and it is interior through moulding Φ 2 and chamfering moulding α that interior round forming tank is provided with bearing, and chamfering is right angle or arc angle.
The device of described a kind of processing positive displacement drill bearing, cooling body is made of cooling tube, oil pump, cooling oil groove; Oil pump in the cooling oil groove is connected to by by the bearing workpiece of cold roll by cooling tube.
The device of described a kind of processing positive displacement drill bearing, cylindrical moulding determinator is configured to propping up by the dial gauge of measuring the excircle of workpiece wall thickness, and dial gauge is fixed on the frame by support, also can be arranged to travel switch or light controlling device.
The device of described a kind of processing positive displacement drill bearing, this device also can be arranged to horizontal, and an end is set to the propulsive mechanism level and connects excircle of workpiece roller-compaction mechanism; The other end is set to the driving wheel and the secondary driving wheel of rotating mechanism, is provided with circle shaping mechanism in the workpiece that can move horizontally between it; Propulsive mechanism and rotating mechanism are fixed on the base, the core roller that rolls of circle shaping mechanism is fixed on the horizontal guide rail of base in the rolling wheel of excircle of workpiece roller-compaction mechanism and the workpiece, cold roll to the workpiece bearing blank is provided with cooling body, and bearing workpiece blank one side is provided with the cylindrical moulding and measures system.
Because adopt aforesaid technical scheme, the present invention has following superiority:
The method of this a kind of processing positive displacement drill bearing and device, the plasticity of having utilized 55SiMoVA realizes purpose with high tonnage cold roll, has remedied the deficiency of above-mentioned old technology, directly saves lathe multitool process, and scrappage is directly reduced.
1. from quality of materials: 55SiMoVA makes matallic surface layer generation plastic deformation under new-type processes, thereby forms high rigidity and high-intensity hardened layer, and this surface reinforcing method is called areal deformation to be strengthened, and also claims work hardening.The strengthening layer bit density increases, and the subgrain structure refinement is even, dense structure, and the metal streamline continuous whole can significantly improve the surface fatigue intensity of part and the sensitiveness of the tired breach of reduction, thereby improve the quality of products.
2. the cold roll workpiece also has the effect of experimental material, and the 55SiMoVA material comes out impurity and pore in the material through too high tonnage extruding at normal temperatures and pressures.
3. economically: cancelled loaded down with trivial details machined into process, directly the two R raceway grooves of moulding, cylindrical, interior circle, highly and chamfering successively.Make the power consumption of equipment reduce over half.The utilization rate of material from before 45% bring up to more than 75% the call of positive response country energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the process chart of processing positive displacement drill bearing lasso of the present invention;
Fig. 2 is the structural representation of cold roll processing positive displacement drill bearing overcoat;
Fig. 3 is the work sheet that rolls of cold roll processing positive displacement drill bearing overcoat;
Fig. 4 is the structural representation of cover in the cold roll processing positive displacement drill bearing;
Fig. 5 is the work sheet that rolls that overlaps in the cold roll processing positive displacement drill bearing;
Fig. 6 is the structural representation of hydraulic feed device;
Fig. 7 be the cold roll bearing outside the mould rolling wheel, roll the structural representation of core roller;
Fig. 8 be the cold roll bearing inner sleeve the mould rolling wheel, roll the structural representation of core roller;
Among the figure: the 1-hydraulic jack; The 2--hydraulic push rod; 3-C shape advances framework; 4 (a.b)-roller bearings; 5-rolling wheel mandrel; The 6-locking nut; The 7-rolling wheel; The sliding iron of 8-V type straight line; The spacing mandrel of 9-; 10-rolls the core roller; The 11-bearing; The 12-driving wheel; The secondary driving wheel of 13-; The 14-shaft coupling; The 15-reductor; The 16-motor; 17-cylindrical wall thickness determinator; The 18-cooling tube; The 19-oil pump; 20-cools off oil groove; The 21-screw; The 22-blank; The 23-lining; 24-farad dish; The 25-alignment pin; The 26-pressure plate; 27-rolling wheel mandrel fixed head; The 28-fixed head; The 29-back-moving spring.
The specific embodiment
Shown in Fig. 1,2,3,4,5,6,7,8: a kind of method of processing positive displacement drill bearing is to adopt cold roll processes positive displacement drill bearing, and its step is as follows:
1), the external sleeve blank or the interior cover blank of machining bearing: adopt the strong material 55SiMoVA round steel of plasticity, diameter is at Φ 60mm-Φ 140mm; Round steel is calculated length according to the model of drilling tool bearing be cut into segment with sawing machine, it being put into the stove the inside is heated to about the 500-700 degree again, take out then with pneumatic hammer and forge circlewise, with staving press the whole footpath of the height of interior circle, cylindrical is expanded to the bearing outside blank (22a) or the bearing inner sleeve blank 22b of preliminary dimension again); The overcoat external diameter of model of the same race and interior cover external diameter be than old-fashioned little 8%-30%, few 30%-50% that weight ratio is old-fashioned.Supporting drilling tool bearing designation and the heavy KG comparison sheet one of old technology blanking:
2), cold roll positive displacement drill bearing: at normal temperatures and pressures, hydraulic jack (1) promotes rolling wheel (7) and moves down and roll core roller (10) and go up the bearing blank of placing (22a) and exert pressure and contact, guarantee rolling wheel (7) and roll core roller (10) central axes, and make and roll the sliding iron (8) of core roller (10) by the V-type line slideway and contact with the driving wheel (12) of rotating mechanism; The shaft coupling (14) that motor (16) connects by reductor (15) drives driving wheel (12) and secondary driving wheel (13) and makes and roll core roller (10) and rotate, roll core roller (10) by and bearing blank between frictional force drive bearing blank and rotate, the friction between bearing blank and the rolling wheel (7) drives rolling wheel (7) again and rotates; Under the promotion of feed system, rolling wheel (7) dwindles the centre-to-centre spacing that rolls between core roller (10) and the rolling wheel (7) by bearing blank is exerted pressure continuously gradually simultaneously, reaches cylindrical moulding standard until distortion and finishes; Through rolling the workpiece of distortion, it is big that external diameter becomes, and wall thickness reduces, axially broadening slightly;
A. cold roll drilling tool bearing outside: hydraulic jack (1) and motor (16) driving bearing overcoat rolling wheel, driving wheel (12) and bearing outside respectively roll the core roller, to 55SiMoVA bearing outside blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing outside successively under the reset condition;
B. cold roll drilling tool bearing inner sleeve: hydraulic jack and motor respectively in the driving bearing cover rolling wheel, driving wheel (12) and bearing inner sleeve roll the core roller, to 55SiMoVA bearing inner sleeve blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing inner sleeve successively under the reset condition.
The device of this a kind of processing positive displacement drill bearing has circle shaping mechanism, rotating mechanism, cooling body and frame in propulsive mechanism, excircle of workpiece roller-compaction mechanism, the workpiece; Frame is doorframe shape, and the propulsive mechanism that upper rack is provided with connects excircle of workpiece roller-compaction mechanism; The both sides V-type line slideway mechanism of central rack is provided with circle shaping mechanism in the workpiece moving up and down; The bearing workpiece blank that rolls core roller (10) shaping area setting of circle shaping mechanism is corresponding with rolling wheel (7) shaping area of the excircle of workpiece roller-compaction mechanism that moves down in the workpiece; The driving wheel (12) and the secondary driving wheel (13) that roll the rotating mechanism that core roller (10) and frame lower be provided with of bearing workpiece blank both sides are corresponding; The circle shaping mechanism is provided with cooling body to the cold roll of workpiece bearing blank in excircle of workpiece roller-compaction mechanism and the workpiece, and bearing workpiece blank one side is provided with the cylindrical moulding and measures system.
Propulsive mechanism is made of by push rod (2) screwed connection c shape framework (3) the 8-50 ton adjustable hydraulic hydraulic jack (1) that is fixed on the frame; C shape framework is made of by bolt (21) connection-core axis fixing plate (27) respectively the two ends of pressure plate (26), and pressure plate (26) center is provided with the silk hole that connects push rod (2); Hydraulic jack (1) promotes C type framework, and c shape framework passes to rolling wheel by mandrel with thrust, and the rolling wheel two ends are locking nuts.
The push rod of propulsive mechanism (2) also can be set to bulb, and its c shape framework pressure plate (26) centre bore also can be corresponding saturating sphere hole, inserts that push rod (2) in the sphere hole is outer to be with fixed head (28) and by being bolted on the pressure plate; C shape framework also can be cast into one.
Rotating mechanism connects reductor (16) by the motor (16) of 18.5KW1470r/m rotating speed, drives driving wheel and secondary driving wheel by shaft coupling.Shaft coupling (14) with pass frame on driving wheel (12) the ring flange axle of fixing self-aligning roller bearing (4b) be connected; , and fixing between the wheel shaft of driving wheel and the secondary driving wheel by pin (25) by screwed connection; The both sides ring flange (24) of driving wheel and secondary driving wheel is fixedlyed connected by screw (21) respectively, and secondary driving wheel (13) ring flange axle is fixed on the self-aligning roller bearing (4b) of frame.Connect by ring flange between shaft coupling and the driving wheel, middle by self-aligning roller bearing and alignment pin transition.In like manner, secondary driving wheel also is to be formed by connecting by self-aligning roller bearing, alignment pin and ring flange.
V-type line slideway mechanism is made of sliding iron (8), back-moving spring (29) and guide rail, and sliding iron center fixation has spacing mandrel (9), and sliding iron (8) both sides are V-shaped to be contacted with V-type rail, and V-type rail is fixed on the frame; Sliding iron (8) lower end is provided with back-moving spring (29).
The Workpiece shaping system comprises: the mechanism of circle moulding in excircle of workpiece roller-compaction and the workpiece.
Excircle of workpiece roller-compaction mechanism is made of rolling wheel mandrel (5), bearing, rolling wheel (7), and rolling wheel mandrel (5) is fixed on two mandrel fixed heads (27) of c shape framework, and has locking nut (6) fixing; Two cover self-aligning thrust roller bearings (4a) are housed on the rolling wheel mandrel, and two cover roller bearings are provided with a lining (23), and lining is cylindrical, is with rolling wheel (7) outside it, and has locking nut (6) fixing.
Be provided with the cylindrical forming tank of bearing outside in the middle of rolling wheel (7) cylindrical, be provided with the height moulding h of bearing in the forming tank, outward through moulding Φ 1 and chamfering moulding α, chamfering is right angle or arc angle.
Forming tank in the middle of rolling wheel (7) cylindrical also can be set to the cylindrical forming tank of bearing inner sleeve, comprising: the height moulding h of bearing, outward through moulding Φ 1, double channel moulding R.
The circle shaping mechanism constitutes by rolling core roller (10) and spacing mandrel (9) in the workpiece, roll the two cover ball bearings (11) that are provided with in the axis hole of core roller (10) two ends and be connected and fixed spacing mandrel (9) respectively and move spacing mandrel, the fixing spacing mandrel and the other end that moves spacing mandrel are fastened on respectively on the sliding iron (8) of V-type line slideway of central rack both sides setting;
Roll the interior round forming tank that is provided with bearing outside in the middle of the core roller (10) for shaping area, be provided with the double channel moulding R, interior of circle in the bearing in the forming tank through moulding Φ 2.
The forming tank that rolls core roller (10) centre also can be set to the interior round forming tank of bearing inner sleeve, and it is interior through moulding Φ 2 and chamfering moulding α to be provided with bearing in the forming tank, and chamfering is right angle or arc angle.
The deformation trace that rolls the core roller is connected by spacing mandrel between them by the control of v type line slideway.Workpiece passes in and out from moving spacing mandrel and rolling between the core roller.Rolling core roller, rolling wheel and driving wheel adopts mould steel to make.
Cooling body is made of cooling tube (18), oil pump (19), cooling oil groove (20); Oil pump (19) in the cooling oil groove (20) is connected to by by the bearing workpiece of cold roll by cooling tube (18).When opening the hydraulic thrust system, cooling oil pump is started cooling workpiece, rolling wheel and rolls core.
Cylindrical moulding determinator (17) is configured to propping up by the dial gauge of measuring the excircle of workpiece wall thickness, and dial gauge is fixed on the frame by support, also can be arranged to travel switch or light controlling device.
The device of this processing positive displacement drill bearing also can be arranged to horizontal, and an end is set to the propulsive mechanism level and connects excircle of workpiece roller-compaction mechanism; The other end is set to the driving wheel and the secondary driving wheel of rotating mechanism, is provided with circle shaping mechanism in the workpiece that can move horizontally between it; Propulsive mechanism and rotating mechanism are fixed on the base, the core roller that rolls of circle shaping mechanism is fixed on the horizontal guide rail of base in the rolling wheel of excircle of workpiece roller-compaction mechanism and the workpiece, cold roll to the workpiece bearing blank is provided with cooling body, and bearing workpiece blank one side is provided with the cylindrical moulding and measures system.
Drive condition: 1. hydraulic jack is exported the pressure of 8-50 ton.2. motor-driven rolls core roller rotating speed at 80-500r/min.3. lubricated with rolling oil cooling.4. adjust the cylindrical controller.
Cover in the cold roll 55SiMoVA positive displacement drill bearing:
Cold roll drilling tool bearing outside: preparation: installation mold at first: install cold roll bearing outside mould-rolling wheel earlier, roll the core roller, rolling wheel is installed on the lining, rolls the core roller and is installed on the spacing mandrel.
The bearing external sleeve blank is installed again, the bearing outside blank that processes by moving spacing core sleeve in the position of rolling of rolling core roller forming tank, is adjusted and moved spacing mandrel, make the bearing outside blank that rolls on the core roller corresponding with the forming tank on the rolling wheel.
During work, hydraulic jack (1) and motor (16) driving bearing overcoat rolling wheel, driving wheel (12) and bearing outside respectively roll the core roller.Motor via reducer drives driving wheel by shaft coupling and secondary driving wheel rotates, hydraulic jack promotes the rolling wheel mandrel of c shape framework to bottom offset by push rod simultaneously, the bearing outside blank cylindrical that overlaps on making the outer bearing outside mould-rolling wheel that is provided with of the roller bearing of installing on the rolling wheel mandrel and rolling the core roller contacts, the forming tank of cold roll bearing outside mould-rolling wheel is blocked the bearing outside blank, circle contacts with rolling the core roller in the bearing outside blank, and the forming tank that rolls on the core roller is blocked circle in the bearing outside blank.The core roller that rolls of bearing outside blank both sides contacts with secondary driving wheel with driving wheel by the V-type line slideway, rotation drive by driving wheel and secondary driving wheel rolls the rotation of core roller, and the cylindrical of bearing outside blank rotates and drives cold roll bearing outside mould-rolling wheel rotation simultaneously.Make 55SiMoVA bearing outside blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing outside successively under the reset condition by rolling compaction.
In like manner, cold roll drilling tool bearing inner sleeve: install cold roll bearing inner sleeve mould-rolling wheel earlier, roll the core roller, rolling wheel is installed on the lining, rolls the core roller and is installed on the spacing mandrel.
Cover blank in the bearing is installed again, the bearing inner sleeve blank that processes by moving spacing core sleeve in the position of rolling of rolling core roller forming tank, is adjusted and moved spacing mandrel, make the bearing inner sleeve blank that rolls on the core roller corresponding with the forming tank on the rolling wheel.
During work, hydraulic jack and motor respectively in the driving bearing cover rolling wheel, driving wheel (12) and bearing inner sleeve roll the core roller, to 55SiMoVA bearing inner sleeve blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing inner sleeve successively under the reset condition.
Claims (10)
1, a kind of method of processing positive displacement drill bearing is characterized in that: be to adopt cold roll processes positive displacement drill bearing, its step is as follows:
1), the external sleeve blank or the interior cover blank of machining bearing: adopt the strong material 55SiMoVA round steel of plasticity, diameter is at Φ 60mm-Φ 140mm; Round steel is calculated length according to the model of drilling tool bearing be cut into segment with sawing machine, it being put into the stove the inside is heated to about the 500-700 degree again, take out then with pneumatic hammer and forge circlewise, with staving press the whole footpath of the height of interior circle, cylindrical is expanded to the bearing outside blank (22a) or the bearing inner sleeve blank 22b of preliminary dimension again); The overcoat external diameter of model of the same race and interior cover external diameter be than old-fashioned little 8%-30%, few 30%-50% that weight ratio is old-fashioned; Supporting drilling tool bearing designation is:
The heavy 2.61-4.00KG of the material of 244 type outer collar; The heavy 1.72-2.76KG of the material of inside race;
The heavy 1.45-2.38KG of the material of 215 type outer collar; The heavy 1.20-2.04KG of the material of inside race;
The heavy 1.31-2.18KG of the material of 203 type outer collar; The heavy 0.99-1.74KG of the material of inside race;
The heavy 1.41-2.20KG of the material of 197 type outer collar; The heavy 0.92-1.64KG of the material of inside race;
The heavy 0.95-1.68KG of the material of 172 type outer collar; The heavy 0.65-1.26KG of the material of inside race;
The heavy 0.88-1.59KG of the material of 165 type outer collar; The heavy 0.60-1.19KG of the material of inside race;
The heavy 0.30-0.77KG of the material of 120 type outer collar; The heavy 0.22-0.51KG of the material of inside race;
2), cold roll positive displacement drill bearing: at normal temperatures and pressures, hydraulic jack (1) promotes rolling wheel (7) and moves down and roll core roller (10) and go up the bearing blank of placing (22a) and exert pressure and contact, guarantee rolling wheel (7) and roll core roller (10) central axes, and make and roll the sliding iron (8) of core roller (10) by the V-type line slideway and contact with the driving wheel (12) of rotating mechanism; The shaft coupling (14) that motor (16) connects by reductor (15) drives driving wheel (12) and secondary driving wheel (13) and makes and roll core roller (10) and rotate, roll core roller (10) by and bearing blank between frictional force drive bearing blank and rotate, the friction between bearing blank and the rolling wheel (7) drives rolling wheel (7) again and rotates; Under the promotion of feed system, rolling wheel (7) dwindles the centre-to-centre spacing that rolls between core roller (10) and the rolling wheel (7) by bearing blank is exerted pressure continuously gradually simultaneously, reaches cylindrical moulding standard until distortion and finishes; Through rolling the workpiece of distortion, it is big that external diameter becomes, and wall thickness reduces, axially broadening slightly;
A. cold roll drilling tool bearing outside: hydraulic jack (1) and motor (16) driving bearing overcoat rolling wheel, driving wheel (12) and bearing outside respectively roll the core roller, to 55SiMoVA bearing outside blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing outside successively under the reset condition;
B. cold roll drilling tool bearing inner sleeve: hydraulic jack and motor respectively in the driving bearing cover rolling wheel, driving wheel (12) and bearing inner sleeve roll the core roller, to 55SiMoVA bearing inner sleeve blank two R raceway grooves, cylindrical, interior circle, height and chamfering of moulding bearing inner sleeve successively under the reset condition.
2, a kind of device of implementing the processing positive displacement drill bearing of claim 1 is characterized in that: have circle shaping mechanism, rotating mechanism, cooling body and frame in propulsive mechanism, excircle of workpiece roller-compaction mechanism, the workpiece; Frame is doorframe shape, and the propulsive mechanism that upper rack is provided with connects excircle of workpiece roller-compaction mechanism; The both sides V-type line slideway mechanism of central rack is provided with circle shaping mechanism in the workpiece moving up and down; The bearing workpiece blank that rolls core roller (10) shaping area setting of circle shaping mechanism is corresponding with rolling wheel (7) shaping area of the excircle of workpiece roller-compaction mechanism that moves down in the workpiece; The driving wheel (12) and the secondary driving wheel (13) that roll the rotating mechanism that core roller (10) and frame lower be provided with of bearing workpiece blank both sides are corresponding; The circle shaping mechanism is provided with cooling body to the cold roll of workpiece bearing blank in excircle of workpiece roller-compaction mechanism and the workpiece, and bearing workpiece blank one side is provided with the cylindrical moulding and measures system.
3, the device of a kind of processing positive displacement drill bearing according to claim 2 is characterized in that: propulsive mechanism is made of by push rod (2) screwed connection c shape framework (3) the hydraulic jack (1) that is fixed on the frame; C shape framework is made of by bolt (21) connection-core axis fixing plate (27) respectively the two ends of pressure plate (26), and pressure plate (26) center is provided with the silk hole that connects push rod (2); Push rod (2) also can be set to bulb, and its c shape framework pressure plate (26) centre bore also can be corresponding saturating sphere hole, inserts that push rod (2) in the sphere hole is outer to be with fixed head (28) and by being bolted on the pressure plate; C shape framework also can be cast into one.
4, the device of a kind of processing positive displacement drill bearing according to claim 2 is characterized in that: rotating mechanism by motor (16) connect reductor (16) by shaft coupling (14) with pass frame on driving wheel (12) the ring flange axle of the self-aligning roller bearing (4b) fixed be connected; , and fixing between the wheel shaft of driving wheel and the secondary driving wheel by pin (25) by screwed connection; The both sides ring flange (24) of driving wheel and secondary driving wheel is fixedlyed connected by screw (21) respectively, and secondary driving wheel (13) ring flange axle is fixed on the self-aligning roller bearing (4b) of frame.
5, the device of a kind of processing positive displacement drill bearing according to claim 2, it is characterized in that: V-type line slideway mechanism is made of sliding iron (8), back-moving spring (29) and guide rail, sliding iron center fixation has spacing mandrel (9), sliding iron (8) both sides are V-shaped to be contacted with V-type rail, and V-type rail is fixed on the frame; Sliding iron (8) lower end is provided with back-moving spring (29).
6, the device of a kind of processing positive displacement drill bearing according to claim 2, it is characterized in that: excircle of workpiece roller-compaction mechanism is made of rolling wheel mandrel (5), bearing, rolling wheel (7), rolling wheel mandrel (5) is fixed on two mandrel fixed heads (27) of c shape framework, and has locking nut (6) fixing; Two cover self-aligning thrust roller bearings (4a) on the rolling wheel mandrel, two cover roller bearings are provided with a lining (23), and lining is with rolling wheel (7) outward, and has locking nut to fix; Be provided with the cylindrical forming tank of bearing outside in the middle of rolling wheel (7) cylindrical, be provided with the height moulding h of bearing in the forming tank, outward through moulding Φ 1 and chamfering moulding α, chamfering is right angle or arc angle; Forming tank in the middle of rolling wheel (7) cylindrical also can be set to the cylindrical forming tank of bearing inner sleeve, comprising: the height moulding h of bearing, outward through moulding Φ 1, double channel moulding R.
7, the device of a kind of processing positive displacement drill bearing according to claim 2, it is characterized in that: the circle shaping mechanism constitutes by rolling core roller (10) and spacing mandrel (9) in the workpiece, roll the two cover ball bearings (11) that are provided with in the axis hole of core roller (10) two ends and be connected and fixed spacing mandrel (9) respectively and move spacing mandrel, the fixing spacing mandrel and the other end that moves spacing mandrel are fastened on respectively on the sliding iron (8) of V-type line slideway of central rack both sides setting; Roll the middle interior round forming tank that is provided with bearing outside of core roller (10), be provided with double channel moulding R round in the bearing, interior in the forming tank through moulding Φ 2; The forming tank that rolls core roller (10) centre also can be set to the interior round forming tank of bearing inner sleeve, and it is interior through moulding Φ 2 and chamfering moulding α that interior round forming tank is provided with bearing, and chamfering is right angle or arc angle.
8, the device of a kind of processing positive displacement drill bearing according to claim 2 is characterized in that: cooling body is made of cooling tube (18), oil pump (19), cooling oil groove (20); Oil pump (19) in the cooling oil groove (20) is connected to by by the bearing workpiece of cold roll by cooling tube (18).
9, the device of a kind of processing positive displacement drill bearing according to claim 2, it is characterized in that: cylindrical moulding determinator (17) is configured to propping up by the dial gauge of measuring the excircle of workpiece wall thickness, dial gauge is fixed on the frame by support, also can be arranged to travel switch or light controlling device.
10, the device of a kind of processing positive displacement drill bearing according to claim 2 is characterized in that: the device of this processing positive displacement drill bearing also can be arranged to horizontal, and an end is set to the propulsive mechanism level and connects excircle of workpiece roller-compaction mechanism; The other end is set to the driving wheel and the secondary driving wheel of rotating mechanism, is provided with circle shaping mechanism in the workpiece that can move horizontally between it; Propulsive mechanism and rotating mechanism are fixed on the base, the core roller that rolls of circle shaping mechanism is fixed on the horizontal guide rail of base in the rolling wheel of excircle of workpiece roller-compaction mechanism and the workpiece, cold roll to the workpiece bearing blank is provided with cooling body, and bearing workpiece blank one side is provided with the cylindrical moulding and measures system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100500562A CN101293316B (en) | 2008-06-13 | 2008-06-13 | Method and apparatus for processing positive displacement drill bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100500562A CN101293316B (en) | 2008-06-13 | 2008-06-13 | Method and apparatus for processing positive displacement drill bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101293316A true CN101293316A (en) | 2008-10-29 |
| CN101293316B CN101293316B (en) | 2013-12-18 |
Family
ID=40063993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100500562A Expired - Fee Related CN101293316B (en) | 2008-06-13 | 2008-06-13 | Method and apparatus for processing positive displacement drill bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101293316B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319999A (en) * | 2011-06-20 | 2012-01-18 | 安徽省小小科技实业有限责任公司 | Precision hot rolling extrusion milling machine for belt pulley |
| CN104498687A (en) * | 2014-11-28 | 2015-04-08 | 陈祖均 | Steel device and forging process thereof |
| CN107971704A (en) * | 2017-11-24 | 2018-05-01 | 无锡龙筠模具制造有限公司 | A kind of hard material sliding block pin hole matches somebody with somebody manual labour skill |
| CN108080883A (en) * | 2018-02-07 | 2018-05-29 | 惠州市博正兴实业有限公司 | A kind of new outer diameter burnishing-in knife and its assemble method |
| CN111992651A (en) * | 2020-06-11 | 2020-11-27 | 无锡隆迪精密锻件有限公司 | Profiling mold of wheel forging and production process |
-
2008
- 2008-06-13 CN CN2008100500562A patent/CN101293316B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319999A (en) * | 2011-06-20 | 2012-01-18 | 安徽省小小科技实业有限责任公司 | Precision hot rolling extrusion milling machine for belt pulley |
| CN102319999B (en) * | 2011-06-20 | 2012-12-26 | 安徽省小小科技实业有限责任公司 | Precision hot rolling extrusion milling machine for belt pulley |
| CN104498687A (en) * | 2014-11-28 | 2015-04-08 | 陈祖均 | Steel device and forging process thereof |
| CN107971704A (en) * | 2017-11-24 | 2018-05-01 | 无锡龙筠模具制造有限公司 | A kind of hard material sliding block pin hole matches somebody with somebody manual labour skill |
| CN108080883A (en) * | 2018-02-07 | 2018-05-29 | 惠州市博正兴实业有限公司 | A kind of new outer diameter burnishing-in knife and its assemble method |
| CN108080883B (en) * | 2018-02-07 | 2023-12-19 | 惠州市博正兴实业有限公司 | Novel outer diameter extruding cutter and assembling method thereof |
| CN111992651A (en) * | 2020-06-11 | 2020-11-27 | 无锡隆迪精密锻件有限公司 | Profiling mold of wheel forging and production process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101293316B (en) | 2013-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11458528B2 (en) | Wheel automatic closed die forging production line and aluminum alloy wheel | |
| CN101293316B (en) | Method and apparatus for processing positive displacement drill bearing | |
| CN102601196B (en) | Spin forming device for sheet metal parts and forming method | |
| CN1140424C (en) | Production process of stainless steel wheel for motor vehicle | |
| CN108372223A (en) | A kind of spin forming method of Thin Walled Curved busbar shape part | |
| CN115229101B (en) | Integral forging process and equipment for fracturing pump valve body | |
| CN201217047Y (en) | Apparatus for processing positive displacement drill bearing | |
| CN114433774A (en) | Pre-forging die for forging aluminum alloy wheel | |
| CN112108600A (en) | Non ferrous metal production forging device | |
| CN111112428A (en) | Eccentric spinning forming method for aluminum alloy hub | |
| CN217070357U (en) | Angle steel corner cut frock | |
| CN115351219A (en) | Forging device for producing high-chromium alloy cast ball and forging method thereof | |
| CN202239419U (en) | Grinding and forging machine | |
| US4909056A (en) | Method and an apparatus for cold-roll forming of annular workpieces | |
| CN1095970A (en) | Process for cold-drawing spline shaft | |
| CN112743017B (en) | Rolling and forging combined production method | |
| CN210648592U (en) | Porous device of boring of bearing cap | |
| CN210796631U (en) | Glass lining container shaping device | |
| CN202006232U (en) | Spin-forming equipment for sheet metal parts | |
| CN206474519U (en) | A kind of cold extrusion press for processing spraying arbor | |
| CN112122415A (en) | Steel wheel forming system | |
| CN214392156U (en) | Ring rolling machine applied to forged steel part | |
| CN103071680A (en) | Pipe jacking machine unit | |
| US2763168A (en) | Wheel rolling mill | |
| CN214639352U (en) | Adjustable ring forming device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |