Efficient mirror finish device of two bistriques and bright finished process thereof
1, technical field:
The present invention is a kind of pair of efficient mirror finish device of bistrique and bright finished process thereof, belongs to the innovative technology of mirror finish device and mirror-polishing process method thereof.
2, background technology:
There is a large amount of cylindrical mirror finish work in the industrial production, as: various minute surface roll, auxilliary moving sleeve, all kinds of axle part, container conduit etc.General big-and-middle-sized cylindrical mirror finish is all through following 3 classes, 7 procedures: blank → rough turn → half finish turning → finish turning → half correct grinding → correct grinding → mirror finish etc.; Relate to 3 kinds of equipment: lathe, grinding machine, mirror finish special equipment etc.; Workpiece clamping and logistics through 3 times from the blank to the finished product transported; Three kind equipments (especially grinding machine and mirror finish special plane) fixed investment itself is big, needs to use more operator, takies more place and space.
The precision mirror surface polishing technology method of cylindrical mainly contains at present: the processing of oilstone polishing, and open type diamond lap band ultrasonic vibration mirror finish, electrochemical machinery composite polishing etc., but all have such-and-such shortcoming or deficiency:
Oilstone polishing processing needs special equipment, the initial roughness before polishing is required low, must reach below the Ra0.4 μ m, and oilstone belongs to bonded abrasive tool, and quality is bigger, and efficient is lower, and what have applies vibration, but that frequency is difficult for reaching is higher; Need cooling fluid and corresponding circulated filter system.
Open type diamond lap band ultrasonic vibration polishing, not only require initial roughness low, need complicated huge special equipment, and since open type grind band unwinding and rewinding speed objectively can not be higher and same efficient is not ideal too, and diamond lap band cost is higher, needs cooling fluid and circulated filter system.
Though electrochemical machinery efficient is higher, original Ra is same less demanding in 0.8 μ m.Professional equipment needs the large power supply and the complicated electrolyte filtering circulatory system, electrolyte contamination workpiece and operating environment, and health risk, the workpiece post processing is cumbersome, and the processing of waste and old electrolyte is a problem.
Above-mentioned mirror finish method not only has higher requirement to initial roughness, operation is many, equipment is many, transhipment often, need the operator many, and all need special equipment than complex and expensive, efficient is lower, and all be non-dry type processing, the subsequent treatment of need complexity.
3, summary of the invention:
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of simple in structure, the efficient mirror finish device of two bistriques that working (machining) efficiency is high.
Another object of the present invention is to provide a kind of dry-type processing that is, do not need the bright finished process of complicated subsequent treatment.
Structural representation of the present invention as shown in drawings, include contact wheel (16,16A), regulating wheel (24,24A), abrasive band (28,28A), driving wheel (31,31A), contact wheel shaft (32), tension wheel shaft (36), driving shaft (39), motor (21) and transmission mechanism A thereof, the driving link of transmission mechanism A is connected with the output shaft of motor (21), the driven member of transmission mechanism A is connected with driving shaft (39), driving wheel (31,31A) respectively by key (40,40A) be installed on the driving shaft (39) driving wheel (31,31A) respectively by abrasive band (28,28A) transmission is enclosed within the contact wheel (16 that contacts on the wheel shaft (32) to sky, 16A) and sky be enclosed within regulating wheel (24 on the tension wheel shaft (36), 24A).
Above-mentioned motor (21) is positioned at by the formed triangle frame in contact wheel (16,16A), driving wheel (31,31A), regulating wheel (24,24A) and abrasive band (28,28A), and being positioned at tensioning tuningout supporting base (20), the base plate of supporting base (20) and motor (21) is fixed on supporting by connector and installs on the base plate (19).
Above-mentioned transmission mechanism A can be the band transmission, also can be the chain transmission, or is gear drive.
The two ends of above-mentioned driving shaft (39) are bearing on the driving wheel supporting fork (30) by bearing (33A), supporting fork (30) is fixed on supporting and installs on the base plate (19), sleeve (41) axial location is arranged between two driving wheels, and the end face of bearings at both ends (33A) is respectively by stifle (42) and bearing cap (35A) axial location.
The two ends of above-mentioned contact wheel shaft (32) are bearing on the supporting chain stay (18) by bearing (33), and an end of contact wheel shaft (32) is by the shaft shoulder and supporting chain stay (18) location, the other end is by nut (17) and supporting chain stay (18) locking, and supporting chain stay (18) is fixed on supporting and installs on the base plate (19).
The two ends of above-mentioned tension wheel shaft (36) are bearing on the regulating wheel supporting fork (22) by bearing (33B), and the feather key (29) that regulating wheel supporting fork (22) is done circumferential transposition by can prevent that it from moving up and down the time is installed on the supporting base (20).
Above-mentioned regulating wheel (24,24A) is made the cydariform that can reduce the abrasive band sideslip, tension wheel shaft (36) two ends are all milled into flat-shaped, the perforate of one end is connected with the regulating wheel supporting fork (22) of opening groove by rotational pin, its another mill the enclosed slot that flat end is positioned at regulating wheel supporting fork (22), tension wheel shaft (36) upper and lower by can the bolt (25,26) of regulating wheel tuningout being compressed.According to the abrasive band practical operation situation, loosen and compress making tension wheel shaft (36) mill the displacement up or down of flat end by the cooperation of two bolts (25,26), realize regulating wheel (36) tuningout function.
On the above-mentioned regulating wheel supporting fork (22) nut (27) is housed also, between nut (27) and the supporting base (20) tight spring (23) is housed also; The lower end of regulating wheel supporting fork (22) has through hole, the band handgrip rod member of strainer disengaging supporting base (6) when insertion can prevent that the abrasive band from not putting in the hole in.
The present invention carries out bright finished process with two efficient mirror finish devices of bistrique on lathe, include following steps:
1) workpiece positioning and clamping on lathe;
2) with the rough turn and finish turning workpiece of lathe tool;
3) Jiang Daotai changes the outfit and is above-mentioned bistrique, and abrasive band (28,28A) are contained in respectively on the contact wheel (16,16A), regulating wheel (24,24A) of bistrique and the driving wheel (31,31A);
4) with the abrasive band on the bistrique (28,28A) half correct grinding and correct grinding workpiece respectively;
5) abrasive band on the bistrique is replaced by the polishing abrasive band;
6) with the polishing abrasive band on the bistrique workpiece is carried out mirror finish.
Above-mentioned steps 2) technology of half finish turning also can be arranged between rough turn and finish turning.
The efficient mirror finish device of the two bistriques of the present invention adopts the structure of polishing abrasive band as the rubbing down tool, and the present invention can carry out bright finished process with this device on lathe, and therefore, it compared with prior art has following purpose advantage:
1. fixed investment is few, makes about 3000 yuan of the two grinding head devices of a cover, and by contrast, grinding machine and mirror finish special plane are hundreds thousand of at least.
2. be easy to implement, time is few, and versatility is good, and bistrique is as the installation of lathe tool, and the replacing adjustment in abrasive band is also easier lathe tool than installation one, and is not high to workman's specification requirement.All general to the medium-and-large-sized lathe more than the C616, little lathe must be according to same principle specialized designs separately.
3. safe, both just having ruptured to cut off in the abrasive band does not have the hidden danger of hurting sb.'s feelings, hindering equipment yet,
4. it is precise polished to change the wet-milling of original emery wheel, oilstone, dry type grinding that wet type is finished to the abrasive band and dry type correct grinding, does not use expensive superhard abrasive material grinding tool such as diamond and CBN, reduces the instrument cost, improves exploitativeness and practicality.And wheel grinding needs dynamic balancing and correction of the flank shape in time to keep sharp, and the abrasive band only need be changed, and quick-change mechanism can guarantee efficiently to carry out fast; The thick fine ginding in abrasive band, polishing are entirely changed different abrasive bands and are carried out on a cover polishing head device, and emery wheel needs the grinding machine of different accuracy grade and different emery wheel types; And the consumption of the no grinding fluid of dry grinding, the many convenience that can avoid grinding fluid and polishing fluid to bring; Produce in enormous quantities in conventional abrasive band, and in liberal supply, the hyperfine abrasive band use cost that mirror finish is used is about about 1/20 of diamond lap band.
5. adopt two bistriques can accomplish the thick fine finishining concurrent working of grinding and polishing, the abrasive band belongs to coated abrasive tool, and enclosed abrasive band speed can be up to 40m/s, the characteristics of coated abrasive tool electrostatic sand-planting manufacturing process self guarantee that it is sharp and do not block, significantly improve grinding and mirror finish efficient, cut down finished cost, the efficient of conventional sbrasive belt grinding is more than 4 times of wheel grinding, bright finished efficient and electrochemical machinery are suitable, being more than 20 times of oilstone polishing, is more than 5 times of polishing of diamond lap band vibration.The abrasive band abrasive grain of Shi Yonging is from 36#~800# simultaneously, for the mirror finish of low roughness provides objective base;
6. grinding force is little, and heating is few, the workpiece of also not burning of dry grinding, and grinding force is little little to cylindrical shell generation distortion, and precision stability is good, the mirror effect that obtainable minimum Ra value is 0.018 μ m, crudy is good.But non-ferrous metals such as grinding copper aluminium do not block yet and hold the chip removal space, and machining accuracy depends on the front turning process,
7. the range of work and application prospect are extremely wide, and it is because the institutional framework of material self is limited that the cylindrical part of nearly all metal and most nonmetallic materials, the material that has can not be worked into minute surface.
8). adopt two bistriques to accomplish the thick fine finishining concurrent working of grinding and polishing, the abrasive band belongs to coated abrasive tool, and enclosed abrasive band speed can be up to 40m/s, solve the inefficiency problem of additive method, significantly improve grinding and mirror finish efficient, cut down finished cost, the abrasive band abrasive grain of Shi Yonging is from 36#~800# simultaneously, for the mirror finish of low roughness provides objective base.
The two efficient mirror finish device of the bistrique versatilities of the present invention are good, rationally distributed, compact conformation, easy to operate, with low cost, security is good.The two efficient mirror finish devices of bistrique of the present invention can be installed on the dissimilar lathes, make lathe have the grinding machine function, and the function multiplication after bistrique is removed, does not influence original lathe function at all.Process of the present invention belongs to dry type glossing pure mechanical system, that do not need subsequent treatment, does not use any cutting fluid or polishing fluid, does not also just need corresponding circulated filter system.Process of the present invention makes workpiece once can finish rough turn, finish turning, half finish turning, half correct grinding, correct grinding and mirror finish etc. on the lathe behind the clamping, reduced the equipment input, operating personnel have been reduced, reduced the work-yard, reduced workpiece transhipment and clamping times, the operation that solves original method is many, equipment is many, personnel are many, the place take many, workpiece transport more than and clamping workpiece wait " more than 6 " problem often.
4, description of drawings:
Fig. 1 is the structural representation of the two efficient mirror finish devices of bistrique of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is installed in the structural representation of lathe for the two efficient mirror finish devices of bistrique of the present invention.
5, the specific embodiment:
Embodiment:
Structural representation of the present invention such as Fig. 1, shown in 2, include contact wheel (16,16A), regulating wheel (24,24A), abrasive band (28,28A), driving wheel (31,31A), contact wheel shaft (32), tension wheel shaft (36), driving shaft (39), motor (21) and transmission mechanism A thereof, the driving link of transmission mechanism A is connected with the output shaft of motor (21), the driven member of transmission mechanism A is connected with driving shaft (39), driving wheel (31,31A) respectively by key (40,40A) be installed on the driving shaft (39) driving wheel (31,31A) respectively by abrasive band (28,28A) transmission is enclosed within the contact wheel (16 that contacts on the wheel shaft (32) to sky, 16A) and sky be enclosed within regulating wheel (24 on the tension wheel shaft (36), 24A).
For making compact conformation of the present invention, and the longer abrasive band girth of acquisition, the present invention adopts triangular layout, above-mentioned motor (21) is positioned at by the formed triangle frame in contact wheel (16,16A), driving wheel (31,31A), regulating wheel (24,24A) and abrasive band (28,28A), and being positioned at tensioning tuningout supporting base (20), the base plate of supporting base (20) and motor (21) is fixed on supporting by connector and installs on the base plate (19).
Above-mentioned transmission mechanism A can be the band transmission, also can be the chain transmission, or is gear drive.In the present embodiment, transmission mechanism A is the band transmission, include driving wheel (34), driven pulley (37) and driving-belt (38), driving wheel (34) is connected with the output shaft of motor (21), driven pulley (37) is installed on the driving shaft (39), and driving-belt (38) is connected between driving wheel (34) and the driven pulley (37).
Above-mentioned supporting is installed base plate (19) and is provided with and makes that motor (21) can side-to-side movement and make the long shape hole of driving-belt (38) tensioning.
The two ends of above-mentioned driving shaft (39) are bearing on the driving wheel supporting fork (30) by bearing (33A), supporting fork (30) is fixed on supporting and installs on the base plate (19), sleeve (41) axial location is arranged between two driving wheels, and the end face of bearings at both ends (33A) is respectively by stifle (42) and bearing cap (35A) axial location.
The two ends of above-mentioned contact wheel shaft (32) are bearing on the supporting chain stay (18) by bearing (33), and an end of contact wheel shaft (32) is by the shaft shoulder and supporting chain stay (18) location, the other end is by nut (17) and supporting chain stay (18) locking, and supporting chain stay (18) is fixed on supporting and installs on the base plate (19).
Two through holes that above-mentioned supporting chain stay (18) is provided with by its rear end and bolt (15) are installed base plate (19) with supporting and are threaded.Gap between through hole and the bolt (15) can be used as the microcall of two cover contact wheel front and back positions.The contact wheel excircle part adopts the rubber of sulfuration Shore hardness 40-60, makes the processing contact more effective.
The outside of above-mentioned bearing (33) is provided with bearing cap (35).
The two ends of above-mentioned tension wheel shaft (36) are bearing on the regulating wheel supporting fork (22) by bearing (33B), and the feather key (29) that regulating wheel supporting fork (22) is done circumferential transposition by can prevent that it from moving up and down the time is installed on the supporting base (20).Moving up and down by 29 guiding of the feather key in the supporting base of regulating wheel supporting fork prevents circumferential transposition.The outside of above-mentioned bearing (33B) is provided with bearing cap (35B).
Above-mentioned regulating wheel (24) is made the cydariform that can reduce the abrasive band sideslip, tension wheel shaft (36) two ends are all milled into flat-shaped, the perforate of one end is connected with the regulating wheel supporting fork (22) of opening groove by rotational pin, its another mill the enclosed slot that flat end is positioned at regulating wheel supporting fork (22), tension wheel shaft (36) upper and lower by can the bolt (25,26) of regulating wheel tuningout being compressed.According to the abrasive band practical operation situation, loosen and compress making tension wheel shaft (36) mill the displacement up or down of flat end by the cooperation of two bolts (25,26), realize regulating wheel (36) tuningout function.
The lower end of above-mentioned regulating wheel supporting fork (22) has through hole, the band handgrip rod member of strainer disengaging supporting base (6) when insertion can prevent that the abrasive band from not putting in the hole in.When changing the abrasive band, only need press down handle, can easily take out and the abrasive band of packing into after tensioning spring (23) presses down, realize the abrasive band quick change.Tensioning spring is between self-control nut 27 and supporting base 20, and the abrasive band puts the compressed counter-force of rear spring and just is the tensile force in abrasive band, and its size can be regulated as required by the upper-lower position of adjusting self-control nut 27.
On the above-mentioned regulating wheel supporting fork (22) nut (27) is housed also, between nut (27) and the supporting base (20) tight spring (23) is housed also.
The present invention carries out bright finished process with two efficient mirror finish devices of bistrique on lathe, include following steps:
1) workpiece positioning and clamping on lathe;
2) with the rough turn and finish turning workpiece of lathe tool;
3) Jiang Daotai changes the outfit and is above-mentioned bistrique, and abrasive band (28,28A) are contained in respectively on the contact wheel (16,16A), regulating wheel (24,24A) of bistrique and the driving wheel (31,31A);
4) with the abrasive band on the bistrique (28,28A) half correct grinding and correct grinding workpiece respectively;
5) abrasive band on the bistrique is replaced by the polishing abrasive band;
6) with the polishing abrasive band on the bistrique workpiece is carried out mirror finish.
Above-mentioned steps 2) between rough turn and finish turning, also half finish turning can be arranged.
The structural representation that the two efficient mirror finish devices of bistrique of the present invention are installed in lathe as shown in Figure 3, wherein 8 for including first bistrique of abrasive band 28, contact wheel 16, regulating wheel 24 and driving wheel 31 etc., 9 for including second bistrique of abrasive band 28A, contact wheel 16A, regulating wheel 24A and driving wheel 31A etc., wanting of second of the abrasive band fineness ratio of first bistrique is thin, and thick smart synchronous processing is finished in two cooperations.Two bistriques all are fixed on the bearing plate 10 and by bearing plate and are fixed on the lathe pocket knife platform 12.Screw 11 compresses base plate.Pocket knife platform 12 is locked by pressing handle 13 on middle carriage 4.The f of middle carriage 4 moves and can realize feed, saddle 3 is realized the feed motion Vf of processing along moving of guide rail 2, location and clamping that scroll chuck 7 on the headstock 1 and thimble 5 are finished workpiece jointly, handle 6 is with thimble 5 lockings, and scroll chuck drives the workpiece revolution and realizes circumferential feed motion n
wBistrique drives the abrasive band high-speed cruisings by motor independently 21, and the abrasive band can obtain to realize the main motion Vs that processes reposefully, and with speed Vs operation carrying out grinding and polishing.
The two efficient mirror finish devices of bistrique of the present invention are installed in the work that can realize grinding and polished OD on the big-and-middle-sized lathe easily, in addition, also can be contained in equipment such as milling machine, planer and also can realize the plane grinding and polishing, also can be installed on the motion frame circular hole in large-scale is carried out grinding and polishing, in addition, independently being installed on the stand is exactly a desk-top offhand grinding and polishing machine, and its purposes is very extensive.