CN203887639U - Large numerical-control crankshaft main journal cylindrical grinding machine - Google Patents
Large numerical-control crankshaft main journal cylindrical grinding machine Download PDFInfo
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- CN203887639U CN203887639U CN201420243877.9U CN201420243877U CN203887639U CN 203887639 U CN203887639 U CN 203887639U CN 201420243877 U CN201420243877 U CN 201420243877U CN 203887639 U CN203887639 U CN 203887639U
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Abstract
The utility model provides a large numerical-control crankshaft main journal cylindrical grinding machine. Unbalanced centrifugal inertia force possibly generated by a crankshaft which rotates during grinding is reduced, so that torsion and bending deformation of the crankshaft are reduced, processing requirements on roundness of a main journal are met, and common cylindrical grinding of the large crankshaft is realized well. The large numerical-control crankshaft main journal cylindrical grinding machine comprises a workpiece bed body and a grinding wheel bed body, a headstock and a tailstock are arranged on the workpiece bed body, and a grinding wheel frame corresponding to the workpiece bed body is arranged on the grinding wheel bed body. The large numerical-control crankshaft main journal cylindrical grinding machine is characterized in that the grinding wheel frame is connected with the grinding wheel bed body through a dragging plate which is connected with the grinding wheel bed body through a guide rail, the grinding wheel frame is connected with the dragging plate through a servo motor and a ball screw, a narrow central frame is arranged on the workpiece bed body, the headstock is fixed at one end of the workpiece bed body, and the tailstock is connected with the workpiece bed body through the guide rail.
Description
Technical field
The utility model relates to Digit Control Machine Tool automatic field, is specially a kind of large-sized numerical control main bearing journal cylindrical grinder.
Background technology
The world today is in the flourish epoch of modern manufacturing industry, and high, smart Digit Control Machine Tool is the key factor that realizes advanced technology.Day by day meticulous and complicated along with processing technology, nowadays the general way of main bearing journal grinding is, adopt large-scale cylindrical grinder transformation of the way processing, but because flexibility and the torsional rigidity of bent axle are all very poor, when grinding, rotating bent axle can produce larger uneven centrifugal intertia force, increase torsion and the flexural deformation of bent axle, affect the circularity of trunnion, make it not reach processing request.If meeting the Large Crankshaft plain external grinding machine that the radius of gyration is large, length is long cannot process at all.
Summary of the invention
For the problems referred to above, the utility model provides a kind of large-sized numerical control main bearing journal cylindrical grinder, the uneven centrifugal intertia force that while having reduced grinding, rotating bent axle produces, thereby torsion and the flexural deformation of bent axle have been reduced, meet the processing request of the circularity of trunnion, realized preferably the grinding of Large Crankshaft normal cylindrical.
A kind of technical scheme of large-sized numerical control main bearing journal cylindrical grinder is such: it comprises workpiece lathe bed, emery wheel lathe bed, on described workpiece lathe bed, be provided with the headstock and tailstock, on described emery wheel lathe bed, corresponding described workpiece lathe bed is provided with grinding carriage, it is characterized in that: described grinding carriage connects described emery wheel lathe bed by planker, described planker connects described emery wheel lathe bed by guide rail, described grinding carriage is connected described planker with ball-screw by servomotor, on described workpiece lathe bed, be provided with narrow shape centre frame, the described headstock is fixed on one end of described workpiece lathe bed, described tailstock connects described workpiece lathe bed by guide rail.
It is further characterized in that: described headstock rear side is installed described grinding wheel cylindrical trimmer perpendicular to emery wheel axial line;
On described planker, be provided with worm screw, described worm screw connects servomotor, is provided with the worm gear coordinating with described worm screw on described planker, and described worm gear connects gear, is provided with the tooth bar with described gear engagement on described emery wheel lathe bed;
The inner headstock spindle of installing of the described headstock, described headstock spindle connects big belt pulley, described big belt pulley connects ring gear, on the described headstock, be provided with headstock worm screw, be provided with the described headstock turbine with described headstock worm engaging on the described headstock, described headstock turbine connects the first gear, on the described headstock, be provided with the second gear with described the first gear engagement, described the second gear connects the 3rd gear, and the 4th gear meshes described the 3rd gear, and described the 4th gear mesh is answered described ring gear; Described the 4th gear is arranged on pinion stand, described pinion stand is flexibly connected the described headstock, on the described headstock, corresponding described ring gear is provided with pusher, described pusher connects rotation connecting rod, described rotation connecting rod passes through stent support, described rotation connecting rod connection teeth wheel seat, described headstock worm screw connects driving mechanism; Built-in live centre is installed in described headstock spindle, and described headstock spindle front end is headstock driver plate, and described headstock driver plate is arranged on big belt pulley, and described headstock big belt pulley connects motor by transition belt pulley and motor pulley;
Described tailstock is arranged on described tailstock base, described tailstock floor installation is on described workpiece lathe bed, on described tailstock, be provided with motor, the motor that moves through of tailstock completes, the inner tailstock of installing of described tailstock, built-in live centre is installed in described tailstock, and described tailstock connects handwheel and tailstock motor, is provided with the handle corresponding with described tailstock on described tailstock;
In described grinding carriage, be provided with dynamic and static pressure main shaft, dynamic and static pressure main shaft input end is installed spindle pulley, output is installed emery wheel, grinding wheel drive mitor is arranged on planker, on grinding wheel drive mitor, connect motor pulley, and drive spindle pulley by belt, described dynamic and static pressure main shaft comprises grinding wheel spindle cover and grinding wheel spindle, described grinding wheel spindle is arranged in described grinding wheel spindle cover, described grinding wheel spindle two ends are supported in described grinding wheel spindle cover by hydrostatic bearing, described hydrostatic bearing comprises bearing body, on described bearing body, a side is provided with many group oil suction chambers, described oil suction chamber is communicated with described bearing body inwall, described oil suction chamber connects respectively oil duct.
In said structure of the present utility model, comprise workpiece lathe bed, emery wheel lathe bed, on workpiece lathe bed, be provided with the headstock and tailstock, on emery wheel lathe bed, corresponding workpiece lathe bed is provided with grinding carriage, grinding carriage connects emery wheel lathe bed by planker, planker connects emery wheel lathe bed by guide rail, grinding carriage is connected planker by servomotor with ball-screw, on workpiece lathe bed, be provided with narrow shape centre frame, the headstock is fixed on one end of described workpiece lathe bed, tailstock connects workpiece lathe bed by guide rail, owing to using the design of double bed body, and be equipped with narrow shape centre frame, the uneven centrifugal intertia force that while having reduced grinding, rotating bent axle can produce, thereby torsion and the flexural deformation of bent axle have been reduced, met the processing request of the circularity of trunnion, realized preferably the grinding of Large Crankshaft normal cylindrical, grinding process is reasonable, grinding accuracy is good, efficiency is high, security is good.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model large-sized numerical control main bearing journal cylindrical grinder;
Fig. 2 is the left TV structure schematic diagram of Fig. 1;
Fig. 3 is that headstock structure master looks schematic diagram;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is tailstock structural representation;
Fig. 6 is dynamic and static pressure main axle structure schematic diagram;
Fig. 7 is hydrostatic bearing structure schematic diagram;
Fig. 8 is the left view of Fig. 7.
The specific embodiment
See Fig. 1, Fig. 2, a kind of large-sized numerical control main bearing journal cylindrical grinder, it comprises workpiece lathe bed 1, emery wheel lathe bed 2, on workpiece lathe bed 1, be provided with the headstock 3 and tailstock 4, on emery wheel lathe bed 2, corresponding workpiece lathe bed 1 is provided with grinding carriage 6, grinding carriage 6 connects emery wheel lathe bed 2 by planker 5, planker 5 connects emery wheel lathe bed 2 by guide rail, on planker 5, be provided with operation panel 7, grinding carriage 6 is connected planker 5 by servomotor 8 with ball-screw 9, on workpiece lathe bed 1, be provided with a plurality of narrow shape centre frames 10, the headstock 3 is fixed on one end of workpiece lathe bed 1, tailstock 4 connects workpiece lathe bed 1 by guide rail, institute's grinding carriage 6 is installed on planker.
On planker 5, be provided with worm screw 12, on worm screw 12 connection servomotors 13, planker 5, be provided with the worm gear 14 coordinating with worm screw 12, worm gear 14 connects gear 15, on emery wheel lathe bed 2, be provided with the tooth bar 16 with gear 15 engagements, planker 5 is arranged on emery wheel lathe bed 2, servomotor, worm gear, worm screw driven gear by being arranged on planker, move along the tooth bar being arranged on emery wheel lathe bed.Grinding carriage feeding realizes by servomotor, ball-screw, nut, each trunnion of workpiece is supported by narrow shape centre frame 10, what be placed in rear portion is emery wheel lathe bed, planker is arranged on emery wheel bed ways, and grinding carriage and operation panel (operator can stand on planker and also can work in lathe dead ahead) are installed on planker.By planker, drive grinding carriage to vertically move along Z axis, and in X-direction, do traverse feed by grinding carriage, back and forth workpiece is carried out to grinding, grinding process parameters can be concrete according to workpiece grinding requirement, by the panel input of programming, simple to operation, stable performance, the more important thing is in order to control the amount of deflection of crank up.
On narrow shape centre frame 10, be provided with horizontal and vertical supporting member 17-1,17-2, supporting member 17-1,17-2 connect respectively adjusting handle 18-1,18-2, narrow shape centre frame 10(supporting and each trunnion place), from horizontal and vertical directions support grinding, can effectively bear grinding force, the gravity of workpiece and inertia force, guaranteed the grinding stiffness of workpiece, improved the grinding accuracy of workpiece.And this grinding machine center height is high, and lathe bed is long, grinding wheel diameter is applicable to the grinding of the Large Crankshaft trunnion that the radius of gyration is large, length is long greatly very much.
The headstock 3 rear sides are installed grinding wheel cylindrical trimmer 10 perpendicular to emery wheel axial line, for trimming wheel 11.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, on the headstock 3, be provided with headstock spindle 28, headstock spindle 28 connects big belt pulley 29, big belt pulley 29 connects ring gear 30, on the headstock 3, be provided with headstock worm screw 31, on the headstock 3, be provided with the headstock turbine 32 with 31 engagements of headstock worm screw, headstock turbine 32 connects the first gear 33, on the headstock 3, be provided with the second gear 34 with the first gear 33 engagements, the second gear 34 connects the 3rd gear 35, the 4th gear 36 engagement the 3rd gears 35, the corresponding ring gear 30 of the 4th gear 36, when the large workpiece of processing weight, main motor drives big belt pulley can not make driver plate drive workpiece revolution, transmission by turbine and gear drives ring gear 30 motions, thereby auxiliary large belt 29 rotations, transmission by one-level one-level makes the auxiliary big belt pulley of the 4th gear make driver plate drive workpiece to turn round, the auxiliary headstock drives heavy workpiece to rotate.
The 4th gear 36 is arranged on pinion stand 37, pinion stand 37 is flexibly connected the headstock 3, on the headstock 3, corresponding ring gear 30 is provided with pusher 38, pusher 38 connects rotation connecting rod 39, rotation connecting rod 39 supports by support 59, rotation connecting rod 39 connection teeth wheel seats 37, headstock worm screw 31 connects driving mechanism 40, the inner headstock spindle 28 of installing of the headstock 3, the built-in live centre 42 of the interior installation of headstock spindle 28, headstock spindle 28 front ends are headstock driver plate 43, headstock driver plate 43 is arranged on headstock big belt pulley 29, the large belt 29 of the headstock is taken turns by transition belt pulley 44 and headstock motor pulley 45 turning of work piece 41, headstock motor pulley 45 connects headstock motor 47, driving mechanism 40 drives headstock worm screw 31, when workpiece rotational frequency meets or exceeds certain setting value, pusher action, drive ring gear automatic trip on the 4th gear and big belt pulley from, thereby not affecting main motor runs well.
See Fig. 1, Fig. 2, Fig. 5, tailstock base 19 is arranged on workpiece lathe bed 1, tailstock 4 is arranged on tailstock base 19, on tailstock 4, be provided with motor 20, moving through of tailstock 4 electronic 20 completes, the inner tailstock 21 of installing of tailstock 4, the built-in live centre 22 of the interior installation of tailstock 21, tailstock 21 connects handwheel 23 and motor 24, handwheel 23 and tailstock motor 24 are by gear 25 connecting screw rods 26, screw rod 26 connects tailstock 21, on tailstock 4, be provided with the handle corresponding with tailstock 21 27, by tailstock motor 24, also can rotarily drive gear 25 rotations by hand rotation handwheel 23, thereby drive screw rod 26 rotations, screw rod 26 drives tailstock 21 to move in tailstock, realizing tailstock 21 pushes ahead together with built-in live centre 22, top tight workpiece, and the handle 27 of leaving behind, pin tailstock 21.
See Fig. 1, Fig. 2, Fig. 6, Fig. 7, Fig. 8, dynamic and static pressure main shaft 46 is arranged on grinding carriage 6 inside, and dynamic and static pressure main shaft 46 inputs are installed spindle pulley 49, and output is installed emery wheel 11.Grinding wheel drive mitor 50 is arranged on planker 5, on grinding wheel drive mitor 50, connect motor pulley 51, and drive spindle pulley 49 by belt 52, dynamic and static pressure main shaft 46 comprises grinding wheel spindle cover 53 and grinding wheel spindle 54, grinding wheel spindle 54 is arranged in grinding wheel spindle cover 53, grinding wheel spindle 54 two ends are supported in grinding wheel spindle cover 53 by hydrostatic bearing 55, hydrostatic bearing 55 comprises bearing body 56, on bearing body 56, a side is provided with many group oil suction chambers 57, oil suction chamber 57 is communicated with bearing body 56 inwalls, oil suction chamber 57 connects respectively oil duct 58, dynamic and static pressure main shaft is arranged on grinding carriage inside, dynamic and static pressure main shaft input end is installed spindle pulley, output is installed emery wheel.Grinding wheel drive mitor is arranged on planker, on grinding wheel drive mitor, connect motor pulley, and drive spindle pulley by belt, and grinding wheel drive mitor and grinding carriage are servo-actuated, realize the grinding work of emery wheel, adopt dynamic and static pressure main shaft, because the oil pressure of hydrostatic spindle both sides is uneven, the active force of workpiece to hydrostatic spindle while making to balance out part grinding when workpiece grinding, has guaranteed the rigidity of grinding wheel spindle preferably, is applicable to very much the grinding of Large Crankshaft trunnion.
Claims (8)
1. a large-sized numerical control main bearing journal cylindrical grinder, it comprises workpiece lathe bed, emery wheel lathe bed, on described workpiece lathe bed, be provided with the headstock and tailstock, on described emery wheel lathe bed, corresponding described workpiece lathe bed is provided with grinding carriage, it is characterized in that: described grinding carriage connects described emery wheel lathe bed by planker, described planker connects described emery wheel lathe bed by guide rail, described grinding carriage is connected described planker with ball-screw by servomotor, on described workpiece lathe bed, be provided with narrow shape centre frame, the described headstock is fixed on one end of described workpiece lathe bed, described tailstock connects described workpiece lathe bed by guide rail.
2. a kind of large-sized numerical control main bearing journal cylindrical grinder according to claim 1, is characterized in that: described headstock rear side is installed described grinding wheel cylindrical trimmer perpendicular to emery wheel axial line.
3. a kind of large-sized numerical control main bearing journal cylindrical grinder according to claim 1, it is characterized in that: on described planker, be provided with worm screw, described worm screw connects servomotor, on described planker, be provided with the worm gear coordinating with described worm screw, described worm gear connects gear, is provided with the tooth bar with described gear engagement on described emery wheel lathe bed.
4. a kind of large-sized numerical control main bearing journal cylindrical grinder according to claim 1, it is characterized in that: the inner headstock spindle of installing of the described headstock, described headstock spindle connects big belt pulley, described big belt pulley connects ring gear, on the described headstock, be provided with headstock worm screw, on the described headstock, be provided with the described headstock turbine with described headstock worm engaging, described headstock turbine connects the first gear, on the described headstock, be provided with the second gear with described the first gear engagement, described the second gear connects the 3rd gear, the 4th gear meshes described the 3rd gear, described the 4th gear mesh should described ring gear.
5. a kind of large-sized numerical control main bearing journal cylindrical grinder according to claim 4, it is characterized in that: described the 4th gear is arranged on pinion stand, described pinion stand is flexibly connected the described headstock, on the described headstock, corresponding described ring gear is provided with pusher, described pusher connects rotation connecting rod, described rotation connecting rod passes through stent support, described rotation connecting rod connection teeth wheel seat, and described headstock worm screw connects driving mechanism.
6. a kind of large-sized numerical control main bearing journal cylindrical grinder according to claim 5, it is characterized in that: built-in live centre is installed in described headstock spindle, described headstock spindle front end is headstock driver plate, described headstock driver plate is arranged on big belt pulley, and described headstock big belt pulley connects motor by transition belt pulley and motor pulley.
7. a kind of large-sized numerical control main bearing journal cylindrical grinder according to claim 1, it is characterized in that: described tailstock is arranged on described tailstock base, described tailstock floor installation is on described workpiece lathe bed, on described tailstock, be provided with motor, the motor that moves through of tailstock completes, the inner tailstock of installing of described tailstock, built-in live centre is installed in described tailstock, described tailstock connects handwheel and tailstock motor, is provided with the handle corresponding with described tailstock on described tailstock.
8. a kind of large-sized numerical control main bearing journal cylindrical grinder according to claim 1, it is characterized in that: in described grinding carriage, be provided with dynamic and static pressure main shaft, dynamic and static pressure main shaft input end is installed spindle pulley, output is installed emery wheel, grinding wheel drive mitor is arranged on planker, on grinding wheel drive mitor, connect motor pulley, and drive spindle pulley by belt, described dynamic and static pressure main shaft comprises grinding wheel spindle cover and grinding wheel spindle, described grinding wheel spindle is arranged in described grinding wheel spindle cover, described grinding wheel spindle two ends are supported in described grinding wheel spindle cover by hydrostatic bearing, described hydrostatic bearing comprises bearing body, on described bearing body, a side is provided with many group oil suction chambers, described oil suction chamber is communicated with described bearing body inwall, described oil suction chamber connects respectively oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243877.9U CN203887639U (en) | 2014-05-14 | 2014-05-14 | Large numerical-control crankshaft main journal cylindrical grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243877.9U CN203887639U (en) | 2014-05-14 | 2014-05-14 | Large numerical-control crankshaft main journal cylindrical grinding machine |
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| CN203887639U true CN203887639U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420243877.9U Withdrawn - After Issue CN203887639U (en) | 2014-05-14 | 2014-05-14 | Large numerical-control crankshaft main journal cylindrical grinding machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949947A (en) * | 2014-05-14 | 2014-07-30 | 无锡上机数控股份有限公司 | Large-sized numerical control cylindrical grinding machine for crankshaft main journal |
| CN106271361A (en) * | 2016-10-17 | 2017-01-04 | 常州信息职业技术学院 | A kind of cylinder longitudinal seam polisher of living |
| CN110039389A (en) * | 2019-04-25 | 2019-07-23 | 天津海运职业学院 | Marine diesel engine crankshaft arrangement for grinding and crankshaft grinding method |
| CN110181347A (en) * | 2019-06-03 | 2019-08-30 | 成都爱可发再制造科技有限公司 | One kind remanufacturing automatic numerical control crankshaft grinding machine |
-
2014
- 2014-05-14 CN CN201420243877.9U patent/CN203887639U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949947A (en) * | 2014-05-14 | 2014-07-30 | 无锡上机数控股份有限公司 | Large-sized numerical control cylindrical grinding machine for crankshaft main journal |
| CN106271361A (en) * | 2016-10-17 | 2017-01-04 | 常州信息职业技术学院 | A kind of cylinder longitudinal seam polisher of living |
| CN106271361B (en) * | 2016-10-17 | 2018-08-03 | 常州信息职业技术学院 | A kind of movable post body longitudinal seam sander |
| CN110039389A (en) * | 2019-04-25 | 2019-07-23 | 天津海运职业学院 | Marine diesel engine crankshaft arrangement for grinding and crankshaft grinding method |
| CN110181347A (en) * | 2019-06-03 | 2019-08-30 | 成都爱可发再制造科技有限公司 | One kind remanufacturing automatic numerical control crankshaft grinding machine |
| CN110181347B (en) * | 2019-06-03 | 2021-04-09 | 四川飞亚动力科技股份有限公司 | Remanufacturing automatic numerical control crankshaft grinding machine |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20161012 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |