CN204094617U - Trailing type crankshaft grinding machine with double grinding carriages grinding carriage - Google Patents
Trailing type crankshaft grinding machine with double grinding carriages grinding carriage Download PDFInfo
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- CN204094617U CN204094617U CN201420459320.9U CN201420459320U CN204094617U CN 204094617 U CN204094617 U CN 204094617U CN 201420459320 U CN201420459320 U CN 201420459320U CN 204094617 U CN204094617 U CN 204094617U
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Abstract
A kind of trailing type crankshaft grinding machine with double grinding carriages grinding carriage, this device comprises grinding carriage main body, main shaft water-cooling system, grinding carriage lubricating system; The two ends of main shaft are separately fixed on fore bearing and rear bearing; In grinding carriage lubricating system, the oil pump in fuel tank is gone out by chemical fiber filter device by oil pump, is entered respectively in fore bearing, rear bearing by two fuel feed holes, realizes neat liquid friction between main shaft and bearing; In main shaft water-cooling system, the cooling water through filter is transported in the ring pipe of motor cooling jacket by water pump, and cooling water is entered by water inlet, and cooling water takes away heat from motor cooling jacket, and cooling water is back to cooling water tank from delivery port.The utility model is ensureing on the basis that grinding carriage integral rigidity is strong, volume is little, quality is light, grinding carriage casing parts design the forward and backward bearing lubrication of main shaft, the multiple oil circuit of cooling, water route, rotating accuracy, Cutting Stiffness that electro spindle keeps higher in high-speed rotation can be ensured.
Description
Technical field
The utility model relates to numerically control grinder technical field, is specially a kind of trailing type crankshaft grinding machine with double grinding carriages grinding carriage.
Background technology
The method for grinding of existing bent axle is: the trunnion grinding of bent axle, connecting rod neck grinding, thrust surface grinding need to process on three grinding machines.This processing mode shortcoming is that place takies greatly, the waste of man power and material.The grinding carriage of existing crankshaft grinding machine is in grinding process, there is the shortcomings such as workpiece multiple bearing, low precision, working (machining) efficiency be low, therefore the grinding carriage of conventional crankshafts grinding machine can not adapt to the demand of the high accuracy of current automobile engine crankshaft part processing, high efficiency, low cost, low energy consumption.The basic functional principle of double abrasive wheel frame follow grinding technology, be in-movement (X1 axle, X2 axle) by controlling the rotary motion (C1 axle, C2 axle) of bent axle and emery wheel formed synchronously with link mix complex control, the grinding wheel cylindrical of left grinding carriage and right grinding carriage is simultaneously tangent all the time with the surface profile of bent axle different parts, thus realizes on a grinding machine the complete grinding of bent axle.Adopt up-to-date double abrasive wheel frame follow grinding technology to also been proposed more requirement to grinding carriage, mainly comprise the precision of grinding carriage and main shaft, the rigidity of grinding carriage, grinding carriage quality will ensure high acceleration and deceleration, interference region etc. between interference region between grinding carriage and workpiece, double abrasive wheel frame.
Summary of the invention
The purpose of this utility model there are provided a kind of trailing type crankshaft grinding machine with double grinding carriages grinding carriage, to solve, the place existed in the grinding process of current bent axle takies greatly, the wasting phenomenon of man power and material, and solve engine crankshaft part processing high accuracy, high efficiency, low cost, low energy consumption needs of problems.
For achieving the above object, the technical solution adopted in the utility model is trailing type crankshaft grinding machine with double grinding carriages grinding carriage, and this device comprises grinding carriage main body, main shaft water-cooling system, grinding carriage lubricating system; Wherein, grinding carriage main body comprises emery wheel support body, main shaft, air filter, motor cooling jacket, motor stator, rear bearing, rear seal cover, cable hole, rotor, ring pipe, fore bearing, built-in type dynamic balancing, front seal cover, CBN emery wheel, screw hole a, screw hole b; Main shaft water-cooling system comprises water inlet, delivery port, cooling water tank, filter, water pump, overflow valve, Pressure gauge a; Grinding carriage lubricating system comprises oil-out, oil-in, oil cooling machine, accumulator, check valve, sintered type filter, oil pump, chemical fiber filter device, Pressure gauge b, overflow valve, fuel tank.
Specifically, the two ends of main shaft are separately fixed on fore bearing and rear bearing, and the fore bearing of main shaft and rear bearing are fixed respectively by the screw hole a of emery wheel support body both sides, play supporting role to main shaft; The end of described main shaft is provided with CBN emery wheel, and CBN emery wheel and main shaft are fixed by the screw hole b uniform by main shaft end face; Described main axle structure is hollow shaft, and built-in type dynamic balancing is arranged in the interior bone of described main shaft, and built-in type dynamic balancing is connected with main shaft by the tensioner mode of dynamic balancing self; The mid portion of described main shaft is provided with built-in electric motor rotor, and rotor and main shaft are by inner hole and fixed by locking nut; Motor stator is arranged on rotor outside, and motor cooling jacket is sleeved on the cylindrical of motor stator; The outer end of motor cooling jacket is provided with ring pipe, by ring pipe lifting motor cooling effect.
The top of described emery wheel support body increases has passage that oil return can be made more smooth and easy, and installs air filter on passage.
Described front seal cover and rear seal cover are separately fixed on the emery wheel support body end face in the outside of fore bearing and rear bearing by screw, front seal cover and rear seal cover both can stop extraneous dust impurity to enter grinding carriage inside, and grinding carriage internal lubrication oil can also be stoped to outward leakage simultaneously.
Described rear bearing is provided with being wired hole, by cable hole to realize the electrical connection with built-in motor.
In main shaft water-cooling system, cooling water through filter is transported in the ring pipe of motor cooling jacket by water pump, cooling water is entered by water inlet, overflow valve and Pressure gauge a is provided with between water inlet and water pump, cooling water takes away heat from motor cooling jacket, and cooling water is back to cooling water tank from delivery port.
In grinding carriage lubricating system, oil pump in fuel tank is gone out by chemical fiber filter device by oil pump, lubricating oil enters oil-in after pipeline enters two sintered type filters and check valve of connecting, entered respectively in fore bearing, rear bearing by two fuel feed holes, realize neat liquid friction between main shaft and bearing; Described oil pump is provided with overflow valve and Pressure gauge b after being gone out by the oil pump in fuel tank by chemical fiber filter device on its branch road, to ensure the safety of oil circuit.Lubricating oil flow in the fuel tank of lubricating system by spill port after bearing after the inside of emery wheel support body is collected; Oil cooling machine carries out cooling processing to fuel tank, avoids axis system temperature rise too high and causes seize.
Described two fuel feed holes are arranged on emery wheel support body and go forward bearing and rear bearing place; Described three oil-outs to be arranged on bottom emery wheel support body and to be evenly distributed.
Described check valve is arranged in the middle of the sintered type filter of two series connection.
Described main shaft and motor adopt direct-connected mode, ensure the running accuracy of main shaft.
The compact conformation of described emery wheel support body, prevents from colliding at grinding process medium sand wheel carrier and bent axle, ensures to have effective space in two grinding carriage process.
Described main shaft and bearing are in fully liquid Frotteurism, can absorb the vibration produced in grinding process.
The compact conformation of described emery wheel support body, prevents from colliding at grinding process medium sand wheel carrier and bent axle, ensures to have effective space in two grinding carriage process.
Compared with prior art, the utility model has following beneficial effect.
The utility model takes motor direct-connected technology, simplifies the structure, and decreases vibration source, achieves high rotating accuracy and synchronism, and can improve machining accuracy and the surface quality of bent axle significantly.It is arranged on a crankshaft grinding machine, can complete the grinding task of crankshaft thrust face, trunnion and connecting rod neck in clamped one time simultaneously, has both decreased the workpiece time of being installed to turn improve Product Precision.The utility model is ensureing on the basis that grinding carriage integral rigidity is strong, volume is little, quality is light, grinding carriage casing parts design the forward and backward bearing lubrication of main shaft, the multiple oil circuit of cooling, water route, rotating accuracy, Cutting Stiffness that electro spindle keeps higher in high-speed rotation can be ensured, grinding carriage bearing capacity is large, be applicable to the high accuracy of automobile crane, at a high speed, the processing of high acceleration and deceleration trailing type.
Accompanying drawing explanation
Fig. 1 is trailing type crankshaft grinding machine with double grinding carriages grinding carriage structural representation.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the rearview of Fig. 1.
Fig. 4 is electro spindle cooling line schematic diagram.
Fig. 5 is trailing type crankshaft grinding machine with double grinding carriages grinding carriage lubricating system schematic diagram.
Fig. 6 is trailing type crankshaft grinding machine with double grinding carriages layout.
In figure: 1, emery wheel support body, 2, main shaft, 3, air filter, 4, motor cooling jacket, 5, motor stator, 6, rear bearing, 7, rear seal cover, 8, cable hole, 9, rotor, 10, ring pipe, 11, fore bearing, 12, built-in type dynamic balancing, 13, front seal cover, 14, CBN emery wheel, 15, screw hole a, 16, screw hole b, 18, oil-out, 19, oil-in, 20, water inlet, 21, delivery port, 22, cooling water tank, 23, filter, 24, water pump, 25, overflow valve, 26, Pressure gauge a, 27, oil cooling machine, 28, accumulator, 29, check valve, 30, sintered type filter, 31, oil pump, 32, chemical fiber filter device, 33, Pressure gauge b, 34, overflow valve, 35, fuel tank.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in figures 1 to 6, trailing type crankshaft grinding machine with double grinding carriages grinding carriage, this device comprises grinding carriage main body, main shaft water-cooling system, grinding carriage lubricating system; Wherein, grinding carriage main body comprises emery wheel support body 1, main shaft 2, air filter 3, motor cooling jacket 4, motor stator 5, rear bearing 6, rear seal cover 7, cable hole 8, rotor 9, ring pipe 10, fore bearing 11, built-in type dynamic balancing 12, front seal cover 13, CBN emery wheel 14, screw hole a15, screw hole b16; Main shaft water-cooling system comprises water inlet 20, delivery port 21, cooling water tank 22, filter 23, water pump 24, overflow valve 25, Pressure gauge a26; Grinding carriage lubricating system comprises oil-out 18, oil-in 19, oil cooling machine 27, accumulator 28, check valve 29, sintered type filter 30, oil pump 31, chemical fiber filter device 32, Pressure gauge b33, overflow valve 34, fuel tank 35.
Specifically, the two ends of main shaft 2 are separately fixed on fore bearing 11 and rear bearing 6, and the fore bearing 11 of main shaft 2 and rear bearing 6 are fixed respectively by the screw hole a15 of emery wheel support body 1 both sides, play supporting role to main shaft 2; The end of described main shaft 2 is provided with CBN emery wheel 14, and CBN emery wheel 14 and main shaft 2 are fixed by the screw hole b16 uniform by main shaft 2 end face; Described main shaft 2 structure is hollow shaft, and built-in type dynamic balancing 12 is arranged in the interior bone of described main shaft 2, and built-in type dynamic balancing 12 is connected with main shaft 2 by the tensioner mode of dynamic balancing self; The mid portion of described main shaft 2 is provided with built-in electric motor rotor 9, and rotor 9 and main shaft 2 are by inner hole and fixed by locking nut; It is outside that motor stator 5 is arranged on rotor 9, and motor cooling jacket 4 is sleeved on the cylindrical of motor stator 5; The outer end of motor cooling jacket 4 is provided with ring pipe 10, by ring pipe 10 lifting motor cooling effect.
The top of described emery wheel support body 1 increases has passage that oil return can be made more smooth and easy, and on passage, install air filter 3.
Described front seal cover 13 and rear seal cover 7 are separately fixed on emery wheel support body 1 end face in the outside of fore bearing 11 and rear bearing 6 by screw, front seal cover 13 and rear seal cover 7 both can stop extraneous dust impurity to enter grinding carriage inside, and grinding carriage internal lubrication oil can also be stoped to outward leakage simultaneously.Described rear bearing 6 is provided with being wired hole 8, by cable hole 8 to realize the electrical connection with built-in motor.
In main shaft water-cooling system, water pump 24 is connected with the ring pipe 10 of motor cooling jacket 4 by filter 23, and ring pipe 10 one end is water inlet 20, and the other end is delivery port 21; Cooling water is entered by water inlet 20, and between water inlet and water pump 24, be provided with overflow valve 25 and Pressure gauge a26, delivery port 21 is connected with water tank 22.
In grinding carriage lubricating system, oil pump 31 is connected with fuel tank 35 by chemical fiber filter device 32, and oil pump 31 is connected with two oil-ins 19 by two sintered type filters 30 of connecting and check valve 29, and two fuel feed holes 19 are connected with fore bearing 11, rear bearing 6 respectively; Described oil pump 31 is by the sintered type filters 30 of two series connection and the branch road that is connected with two oil-ins 19 of check valve 29 are provided with overflow valve 34 and Pressure gauge b33; Spill port 18 is connected with fuel tank 35; Described fuel tank 35 is connected with oil cooling machine 27.
Described two fuel feed holes 19 are arranged on fore bearing 11 and rear bearing 6 place on emery wheel support body 1; Described three oil-outs 18 to be arranged on bottom emery wheel support body 1 and to be evenly distributed.
Described check valve 29 is arranged in the middle of the sintered type filter 30 of two series connection.
Described main shaft 2 adopts direct-connected mode with motor, ensures the running accuracy of main shaft 2.
The compact conformation of described emery wheel support body 1, prevents from colliding at grinding process medium sand wheel carrier and bent axle, ensures to have effective space in two grinding carriage process.
Described main shaft 2 is in fully liquid Frotteurism with bearing, can absorb the vibration produced in grinding process.
The compact conformation of described emery wheel support body 1, prevents from colliding at grinding process medium sand wheel carrier and bent axle, ensures to have effective space in two grinding carriage process.
The structure of hydrodynamic journal liquid polymers is adopted in present embodiment, this structure is in neat liquid friction between main shaft 2 and bearing, enable electro spindle in the process of High Rotation Speed, keep higher rotating accuracy and rigidity, can ensure that trailing type crankshaft grinding machine with double grinding carriages grinding carriage is to the machining accuracy of bent axle.
The main shaft 2 of present embodiment and the rotor 9 of motor integrated, moment of friction is not had between rotor 9 and motor stator 5, motor direct-drive main shaft 2 carries out grinding, and main shaft 2 is supported between fore bearing 11 and rear bearing 6, and CBN emery wheel 14 is directly connected with main shaft end face.
In main shaft water-cooling system, cooling water through filter 23 is transported in the ring pipe 10 of motor cooling jacket 4 by water pump 24, cooling water is entered by water inlet 20, overflow valve 25 and Pressure gauge 26 is provided with between water inlet and water pump 24, cooling water takes away heat from motor cooling jacket 4, and cooling water is back to cooling water tank 22 from delivery port 21.
In grinding carriage lubricating system, oil pump in fuel tank 35 is gone out by chemical fiber filter device 32 by oil pump 31, lubricating oil along pipeline enter two series connection by entering oil-in 19 after sintered type filter 30 and check valve 29, entered respectively in fore bearing 11, rear bearing 6 by two fuel feed holes 19, realize neat liquid friction between main shaft 2 and bearing; Described oil pump 31 is provided with overflow valve 34 and Pressure gauge b33 after being gone out by the oil pump in fuel tank 35 by chemical fiber filter device 32 on its branch road, to ensure the safety of oil circuit.Lubricating oil flow in the fuel tank 35 of lubricating system by spill port 18 after bearing after the inside of emery wheel support body 1 is collected; Oil cooling machine 27 pairs of fuel tanks 35 carry out cooling processing, avoid axis system temperature rise too high and cause seize.
The structure of hydrodynamic journal liquid polymers is adopted in present embodiment, this structure is in neat liquid friction between main shaft 2 and bearing, enable electro spindle in the process of High Rotation Speed, keep higher rotating accuracy and rigidity, can ensure that trailing type crankshaft grinding machine with double grinding carriages grinding carriage is to the machining accuracy of bent axle.Main shaft 2 structure of present embodiment is hollow shaft, and such design is both convenient installs built-in type dynamic balancing, and reduce again the weight of main shaft 2, inertia is less, be more conducive to the High Rotation Speed of main shaft 2.Emery wheel support body 1 is the core component ensureing axis system rigidity, described front and back bearings outer surface coordinates with the inner surface of the dead eye of grinding carriage, this arrangement eliminates sleeve, thus reduce cost, but require that emery wheel support body ensures the axiality of two dead eyes of emery wheel support body in process, the requirement of grinding carriage height rotating accuracy could be met like this.
The utility model have employed the structure of electric machine built-in, substantially reduces the axial length of grinding carriage, is more conducive to improving the rigidity of main shaft 2 and reducing the elastic deformation of main shaft, has the feature of compact conformation.
Claims (4)
1. trailing type crankshaft grinding machine with double grinding carriages grinding carriage, is characterized in that: this device comprises grinding carriage main body, main shaft water-cooling system, grinding carriage lubricating system; Wherein, grinding carriage main body comprises emery wheel support body (1), main shaft (2), air filter (3), motor cooling jacket (4), motor stator (5), rear bearing (6), rear seal cover (7), cable hole (8), rotor (9), ring pipe (10), fore bearing (11), built-in type dynamic balancing (12), front seal cover (13), CBN emery wheel (14), screw hole a (15), screw hole b (16); Main shaft water-cooling system comprises water inlet (20), delivery port (21), cooling water tank (22), filter (23), water pump (24), overflow valve (25), Pressure gauge a (26); Grinding carriage lubricating system comprises oil-out (18), oil-in (19), oil cooling machine (27), accumulator (28), check valve (29), sintered type filter (30), oil pump (31), chemical fiber filter device (32), Pressure gauge b (33), overflow valve (34), fuel tank (35);
Specifically, the two ends of main shaft (2) are separately fixed on fore bearing (11) and rear bearing (6), and the fore bearing (11) of main shaft (2) and rear bearing (6) are fixed respectively by the screw hole a (15) of emery wheel support body (1) both sides; The end of described main shaft (2) is provided with CBN emery wheel (14), and CBN emery wheel (14) and main shaft (2) are fixed by the screw hole b (16) uniform by main shaft (2) end face; Described main shaft (2) structure is hollow shaft, built-in type dynamic balancing (12) is arranged in the interior bone of described main shaft (2), and built-in type dynamic balancing (12) is connected with main shaft (2) by the tensioner mode of dynamic balancing self; The mid portion of described main shaft (2) is provided with built-in electric motor rotor (9), and rotor (9) and main shaft (2) are by inner hole and fixed by locking nut; It is outside that motor stator (5) is arranged on rotor (9), and motor cooling jacket (4) is sleeved on the cylindrical of motor stator (5); The outer end of motor cooling jacket (4) is provided with ring pipe (10);
The top of described emery wheel support body (1) increases has passage that oil return can be made more smooth and easy, and on passage, install air filter (3);
Described front seal cover (13) and rear seal cover (7) are separately fixed on emery wheel support body (1) end face in the outside of fore bearing (11) and rear bearing (6) by screw;
Described rear bearing (6) is provided with being wired hole (8);
In main shaft water-cooling system, water pump (24) is connected with the ring pipe (10) of motor cooling jacket (4) by filter (23), ring pipe (10) one end is water inlet (20), and the other end is delivery port (21); Cooling water is entered by water inlet (20), and between water inlet and water pump (24), be provided with overflow valve (25) and Pressure gauge a (26), delivery port (21) is connected with water tank (22);
In grinding carriage lubricating system, oil pump (31) is connected with fuel tank (35) by chemical fiber filter device (32), oil pump (31) is connected with two oil-ins (19) by two sintered type filters (30) of connecting and check valve (29), and two fuel feed holes (19) are connected with fore bearing (11), rear bearing (6) respectively; Described oil pump (31) is by the sintered type filters (30) of two series connection and the branch road that is connected with two oil-ins (19) of check valve (29) are provided with overflow valve (34) and Pressure gauge b (33); Spill port (18) is connected with fuel tank (35); Described fuel tank (35) is connected with oil cooling machine (27).
2. trailing type crankshaft grinding machine with double grinding carriages grinding carriage according to claim 1, is characterized in that: described two fuel feed holes (19) are arranged on the upper fore bearing (11) of emery wheel support body (1) and rear bearing (6) place; Described three oil-outs (18) are arranged on emery wheel support body (1) bottom and are evenly distributed.
3. trailing type crankshaft grinding machine with double grinding carriages grinding carriage according to claim 1, is characterized in that: described check valve (29) is arranged in the middle of the sintered type filter (30) of two series connection.
4. trailing type crankshaft grinding machine with double grinding carriages grinding carriage according to claim 1, is characterized in that: described main shaft (2) and motor adopt direct-connected mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459320.9U CN204094617U (en) | 2014-08-14 | 2014-08-14 | Trailing type crankshaft grinding machine with double grinding carriages grinding carriage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459320.9U CN204094617U (en) | 2014-08-14 | 2014-08-14 | Trailing type crankshaft grinding machine with double grinding carriages grinding carriage |
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| CN204094617U true CN204094617U (en) | 2015-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175216A (en) * | 2014-08-14 | 2014-12-03 | 北京工业大学 | Follow-up type grinding wheel rack for double-grinding wheel rack crankshaft grinding machine |
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2014
- 2014-08-14 CN CN201420459320.9U patent/CN204094617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175216A (en) * | 2014-08-14 | 2014-12-03 | 北京工业大学 | Follow-up type grinding wheel rack for double-grinding wheel rack crankshaft grinding machine |
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