A kind of use for diesel engine crankshaft burnishing device and polishing method
Technical field
The present invention relates to a kind of burnishing device and method more particularly to a kind of use for diesel engine crankshaft burnishing device and throwings
Light method.
Background technique
Crankshaft makes the important part in diesel engine, in existing crankshaft burnishing device, is partially polished using sand belt,
It is more many and diverse, it is not easy to be disassembled and maintained, most of crankshaft burnishing device can not carry out trunnion and rod journal same
When polish, working efficiency is low, is difficult to meet the requirement of people.
Such as Patent No. 201720549355.5, applying date 2017.05.17 discloses a kind of crankshaft burnishing device, packet
It includes pedestal (1), the top left side of the pedestal (1) is provided with hydraulic telescopic rod (2), is set at the top of the hydraulic telescopic rod (2)
It is equipped with support column (3), the bottom of the support column (3) is provided with two groups of attachment bases (4), and the outer wall of the attachment base (4) passes through
Transmission shaft is connected with tensioning wheel (5), is connected between tensioning wheel described in two groups (5) polishing abrasive belt (6), the right side attachment base
(4) outer wall is provided with driving motor (7), is offered sliding slot (8) at the top of the pedestal (1), and the inner cavity of the sliding slot (8) is inserted
It is connected to slide (9), is provided with workbench (10) at the top of the slide (9), at left and right sides of the bottom of the workbench (10)
It is provided with idler wheel (11), and the bottom of idler wheel (11) is contacted with the top of pedestal (1), is provided with gear on rear side of the pedestal (1)
The bottom of plate (12), the baffle (12) is provided with electric telescopic rod (13), and the bottom of electric telescopic rod (13) and workbench
(10) top connection, the surface bottom portion of the workbench (10) and top are provided with block (14), the top block
(14) longitudinally through having screw rod (15) on, the top of the screw rod (15) has been extended transversely through rocking bar (16), the screw rod (15)
Bottom is provided with bearing (17), and the bottom of block (14) described in bottom is provided with motor (18), and the top of the motor (18) is dynamic
Power output end is connected with drive rod (19), and the top of drive rod (19) is through the top of block (14) described in bottom, the axis
It holds and is respectively connected with fixed ring (20) at the top of the bottom and drive rod (19) of (17), is all provided at left and right sides of the fixed ring (20)
It is equipped with fastening spiral pin (21).
And the patent No.:201720449050.7 the applying date is:2017.04.26, a kind of crankshaft polishing machine is disclosed, is wrapped
Include tail portion V-type fixture (1), head V-type fixture (7), fuselage (9), burnishing device and mobile platform (10), it is characterised in that:Institute
It states and tail portion V-type fixture (1) and head V-type fixture (7), the tail portion V-type fixture (1) and head V-type fixture is set on fuselage (9)
(7) there is crankshaft (2) clamping between, be placed with stroke gasket on the tail portion V-type fixture (1) and head V-type fixture (7)
(11), the stroke gasket (11) is arranged between crankshaft (2) and tail portion V-type fixture (1) and head V-type fixture (7), the throwing
Electro-optical device is arranged on mobile platform (10), and the mobile platform (10) is movably arranged on fuselage (9).
Two above patent is all made of polishing abrasive belt and is polished, it is seen that crankshaft outer surface may be implemented more in it
Comprehensive polishing, but the position more hidden is difficult to be polished to, it is therefore desirable to a kind of more comprehensively burnishing device.
Summary of the invention
Technical problem to be solved by the present invention lies in providing, a kind of solve can not be to trunnion in above-mentioned background technique
The use for diesel engine crankshaft burnishing device and polishing method for carrying out while polishing with rod journal.
The present invention is to solve above-mentioned technical problem by the following technical programs:A kind of use for diesel engine crankshaft polishing of the present invention
Device, including pedestal, the clamping device for being capable of fixing crankshaft two end, lifting device, burnishing device;Clamping device includes that spacing can
The first clamping device, the second clamping device adjusted, are separately fixed at base upper surface both ends, and lifting device is fixed on the base,
And between the first clamping device, the second clamping device, burnishing device lower in the vertical direction mobile can be connected to liter
On falling unit;The burnishing device includes the shell of open top, the multiple trunnion polishing portion for being immobilized in the shell portion bottom surface
And multiple rod journal polishing portion, the shell is connected at the top of lifting device, between trunnion polishing portion, rod journal polishing portion
It is corresponding every trunnion, rod journal position in cross arrangement, position and crankshaft, when polishing, the first clamping device, the second clamping
Device, crankshaft are located on same axis, and trunnion polishing portion is against on trunnion, and the polished portion of pitman shaft is against rod journal
On.
Preferably, the pedestal offers mounting groove, and the lifting device is fixed in mounting groove, the first clamping device,
Second clamping device is separately fixed at the two sides of mounting groove.
Preferably, first clamping device includes clamping motor, the first holding ring, cylinder, supporting table;The clamping electricity
The output end of machine is fixedly connected with the first holding ring, and the telescopic end of cylinder is fixedly connected with supporting table end, and clamping motor is fixed on branch
Countertop is supportted, cylinder is fixed on base top surface, and the distance between cylinder and the second clamping device are greater than the first holding ring and the
The distance between two clamping devices.
Preferably, sliding block is arranged in the supporting table bottom, and base top surface is additionally provided with the guide rail being slidably connected with sliding block.
Preferably, second clamping device is fixing piece, including support base, shaft, the second holding ring;Support base is fixed
In the end of pedestal, shaft is horizontal to be fixed at the top of support base, and the second holding ring is fixed on the end of shaft.
Preferably, the lifting device includes lifting motor, screw rod, bearing, nut, connecting rod;Lifting motor is fixed on
Groove bottom is installed, and abuts one side, screw rod one end is fixed on the output end of lifting motor, and the other end is rotatablely connected by bearing
In the side of mounting groove and lifting motor opposition, the screw rod includes the first opposite rotation screw thread of symmetrical and hand of thread spiral
Section, second rotation thread segment, nut be two, be connected to the first rotation thread segment, second rotation thread segment at, connecting rod two
A, one end of connecting rod is hinged on the top of nut, and the other end is hinged on the bottom of burnishing device.
Preferably, there are five the trunnion polishing portion is set, trunnion polishing portion includes mounting plate, polishing wheel, mounting plate
Bottom is fixed in the inner bottom surface of shell, and polishing wheel can be detachably fixedly arranged at the top of mounting plate.
Preferably, there are four the rod journal polishing portion is set, the rod journal polishing portion include fixed link, lantern ring,
Connect sleeve, telescopic rod, spring, polished part;Fixed link is fixed on shell two sides, and lantern ring movable can be socketed in fixation
On bar, connection sleeve one end is fixed on lantern ring, and the other end is flexibly connected one end of telescopic rod, and the other end of telescopic rod is fixed to be connected
Polished part is connect, spring is cased on the outside of the telescopic rod, the lower end of the spring is fixedly connected on the upper end surface of connection sleeve,
The upper end of spring is fixedly mounted on the bottom surface of polished part.
Preferably, the polished part includes upper polishing seat, upper semi-circle buffing ring, lower polishing seat, lower half circle buffing ring;Upthrow
Semi-circular recesses are equipped in light seat, what upper semi-circle buffing ring can be dismantled is built in the semi-circular recesses of polishing seat, lower throwing
Semi-circular recesses are equipped in light seat, under being built in that lower half circle buffing ring can be dismantled in the semi-circular recesses of polishing seat, upthrow
Light seat is bolted with lower polishing seat, and the enclosed construction that forms of the medial surface of upper semi-circle buffing ring and lower half circle buffing ring with to
Rod journal radius of curvature on the crankshaft of polishing is consistent.
The present invention also provides a kind of polishing methods using use for diesel engine crankshaft burnishing device, include the following steps:
(1) preparation before crankshaft is clamped;The distance between the first clamping device and the second clamping device are adjusted, clamping is filled
It sets and is clamped in crankshaft two end and is capable of fixing crankshaft;
(2) preparation polished;The height for adjusting lifting device, is against its trunnion polishing portion on trunnion, pitman shaft
Polished portion is against on rod journal;
(3) it is polished;Starting burnishing device is polished;
(4) work after polishing;The height for adjusting lifting device, is against its decline no longer on crankshaft, removes crankshaft.
The present invention has the following advantages that compared with prior art:
(1) it is equipped with multiple trunnion polishing portion and rod journal polishing portion in the present invention, can be realized to polished crankshaft
Trunnion and rod journal polished simultaneously, and polish more comprehensively, avoid dead angle, realize that work efficiency is high, operation is automatic
Change, it is convenient and efficient;
(2) after the completion of polishing, burnishing device can take in installation trench bottom, hair when avoiding the device idle by lifting device
Raw collision damages;
(3) polishing wheel, upper semi-circle buffing ring and lower half circle buffing ring are the fixed installation that can be dismantled, and are easily installed and tear open
It unloads and it is replaced.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of use for diesel engine crankshaft burnishing device of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of pedestal and clamping device in Fig. 1;
Fig. 3 is the structural schematic diagram of lifting device and burnishing device in Fig. 1;
Fig. 4 is the structural schematic diagram of rod journal polishing portion in Fig. 3.
In figure:Pedestal 1, mounting groove 11, guide rail 12, clamping device 2, the first clamping device 21, clamping motor 211, first
Holding ring 212, cylinder 213, supporting table 214, sliding block 2141, the second clamping device 22, support base 221, shaft 222, second are pressed from both sides
Support ring 223, lifting device 3, lifting motor 31, screw rod 32, first revolve thread segment 321, second and revolve thread segment 322, bearing 33, spiral shell
Mother 34, connecting rod 35, burnishing device 4, shell 41, trunnion polishing portion 42, mounting plate 421, polishing wheel 422, rod journal are thrown
Light portion 43, fixed link 431, lantern ring 432, connection sleeve 433, telescopic rod 434, spring 435, polished part 436, upper polishing seat
4361, upper semi-circle buffing ring 4362, lower polishing seat 4363, lower half circle buffing ring 4364, crankshaft 5.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
As shown in Figure 1, a kind of use for diesel engine crankshaft burnishing device of the present embodiment, including pedestal 1, it is capable of fixing 5 liang of crankshaft
Clamping device 2, lifting device 3, the burnishing device 4 at end;Clamping device 2 includes the first clamping device 21, second adjustable in pitch
Clamping device 22 is separately fixed at 1 upper surface both ends of pedestal, and lifting device 3 is fixed on pedestal 1, and in the first clamping dress
It sets between the 21, second clamping device 22, burnishing device 4 can descend mobile be connected on lifting device 3 in the vertical direction;Institute
It states the shell 41 of burnishing device 4 including open top, be fixed on multiple trunnion polishing portion 42 of 41 inner bottom surface of shell and more
A rod journal polishing portion 43, the shell 41 are connected to 3 top of lifting device, trunnion polishing portion 42, rod journal polishing
The arrangement of 43 space crossings of portion, position is corresponding with trunnion, rod journal position on crankshaft 5, when polishing, the first clamping device
21, the second clamping device 22, crankshaft 5 are located on same axis, and trunnion polishing portion 42 is against on trunnion, and pitman shaft is polished
Portion 43 is against on rod journal.It can be realized while trunnion, rod journal are polished, polishing effect is finer.
The pedestal 1 offers mounting groove 11, and the lifting device 3 is fixed in mounting groove 11, the first clamping device 21,
Second clamping device 22 is separately fixed at 1 upper surface of pedestal of 11 two sides of mounting groove, and mounting groove 11 does not have to lifting device 3
When, drop in mounting groove 11, clamping device 2 is on the one hand made not have to the too high of setting, saves space, saves material, entirely
Device is more compact, and on the other hand, avoiding colliding when the device is idle damages.
As shown in Fig. 2, 2 main purpose of clamping device in the present embodiment is to be able to during the polishing process, clamp bent
Axis 5, therefore, the distance between the first clamping device 21, second clamping device 22 are adjustable, scheme one:It can be first
Clamping device 21 is movable device, the second clamping device 22 is fixed mechanism;Scheme two:It is solid for can be the first clamping device 21
Determine mechanism, the second clamping device 22 is movable device, scheme three:It is also possible to the first clamping device 21, the second clamping device 22
It is movable device, all within the scope of the present invention.
Using scheme one in the present embodiment, specifically, first clamping device 21 includes clamping motor 211, the
One holding ring 212, cylinder 213, supporting table 214;The output end of the clamping motor 211 is fixedly connected with the first holding ring 212, gas
The telescopic end of cylinder 213 is fixedly connected with 214 end of supporting table, and clamping motor 211 is fixed on 214 top surface of supporting table, and cylinder 213 is fixed
In 1 top surface of pedestal, and the distance between cylinder 213 and the second clamping device 22 are greater than the first holding ring 212 and the second clamping fills
The distance between 22 are set, as shown, cylinder 213 is mounted on the leftmost side of 1 top surface of pedestal, the second clamping device 2 is mounted on bottom
The rightmost side of 1 top surface of seat, only when clamping crankshaft 5, the first clamping device 21 and the second clamping device 22 are nearest.Support
Platform 214 is slidably connected with pedestal 1, and concrete operations are that sliding block 2141 is arranged in 214 bottom of supporting table, and 1 top surface of pedestal is additionally provided with
The guide rail 12 being slidably connected with sliding block;Supporting table 214 and pedestal 1 can also be rolling connection, can set rolling in 214 bottom of supporting table
Corresponding roller track is arranged in wheel, 1 top surface of pedestal.
The present embodiment only provides a kind of move mode of first clamping device 21, as long as can be realized the first clamping device 21
Realize the mechanism that can be moved horizontally, such as feed screw nut's connection, cam mechanism, gear connection etc. in protection model of the invention
It encloses.
Second clamping device 22 is fixing piece, including support base 221, shaft 222, the second holding ring 223;Support base
221 are fixed on the end of pedestal, and shaft 222 is horizontal to be fixed at the top of support base 221, and the second holding ring 223 is fixed on shaft
222 end, the first holding ring 212 and the second holding ring 223 may each be the cylindrical body that end face (i.e. clamping face) is vertical plane,
Upon polishing, the first holding ring 212, the second holding ring 223 with crankshaft 5 on the same axis.
As shown in figure 3, the lifting device 3 includes lifting motor 31, screw rod 32, bearing 33, nut 34, connecting rod 35;
Lifting motor 31 is fixed on 11 bottom surface of mounting groove, and abuts one side, and in Fig. 3,11 right side, screw rod 32 are only wiped by installation
One end is fixed on the output end of lifting motor 31, and the other end is rotatably connected on mounting groove 11 and lifting motor 31 by bearing 333
The side of opposition, i.e. left side in figure, the screw rod 32 include the first opposite rotation thread segment of symmetrical and hand of thread spiral
321, the second rotation thread segment 322, nut 34 are two, are connected at the first rotation thread segment 321, second rotation thread segment 322,
Connecting rod 35 is two, and one end of connecting rod 35 is hinged on the top of nut 34, and the other end is hinged on the bottom of burnishing device 4,
It specifically is hinged on the bottom of shell 41, in this way, two nuts 34 while opposite or reverse movement may be implemented, makes shell
41 can be stable rise or fall, the present invention does not limit to the position of the first rotation thread segment 321 and the second rotation thread segment 322,
As long as making two sections of hand of spiral on the contrary, about symmetrical in the middle part of screw rod.
In the present embodiment, there are five the trunnion polishing portion 42 is set, the trunnion polishing portion 42 includes mounting plate
421, polishing wheel 422,421 bottom of mounting plate are fixed in the inner bottom surface of shell 41, and polishing wheel 422 can be detachably fixedly arranged at
The top of mounting plate 421, can be convenient replacement, and in the present embodiment, trunnion polishing portion 42 is evenly arranged there are five setting.
As shown in Figure 3-4, in the present embodiment, there are four the rod journal polishing portion is set, the rod journal polishing portion
43 include fixed link 431, lantern ring 432, connection sleeve 433, telescopic rod 434, spring 435, polished part 436;Fixed link 431 is fixed
It is specific as being fixed on the left and right side of shell 41, being parallel to 5 axis of crankshaft, lantern ring 432 in figure on 42 two sides of shell
It movable can be socketed in fixed link 431, connection 433 one end of sleeve is fixed on lantern ring 432, and the other end is flexibly connected flexible
One end of bar 434, the other end of telescopic rod 434 are fixedly connected with polished part 436, are specifically connected to lower polishing seat 4363, described
The outer sheath of telescopic rod 434 is equipped with spring 435, and the lower end of the spring 435 is fixedly connected on the upper surface of connection sleeve 433
Place, the upper end of the spring 435 are fixedly mounted at the bottom surface of lower polishing seat 4363.Rod journal polishing portion 43 is respectively equipped with four
It is a, uniform intervals arrangement, with 42 cross arrangement of trunnion polishing portion.
The polished part 436 includes upper polishing seat 4361, upper semi-circle buffing ring 4362, lower polishing seat 4363, lower half circle throwing
The ring of light 4364;Semi-circular recesses are equipped in upper polishing seat 4361, what upper semi-circle buffing ring 4362 can be dismantled is built in polishing
In the semi-circular recesses of seat 4361, semi-circular recesses are equipped in lower polishing seat 4363, what lower half circle buffing ring 4364 can be dismantled
It is built in the semi-circular recesses of lower polishing seat 4363, upper polishing seat 4361 is bolted with lower polishing seat 4363, and upper semi-circle
The rod journal on enclosed construction and polished crankshaft 5 that the medial surface of buffing ring 4362 and lower half circle buffing ring 4364 forms
Radius of curvature is consistent.
The present invention use the polishing step of the crankshaft burnishing device for:
(1) preparation before crankshaft 5 is clamped;The distance between the first clamping device 21 and the second clamping device 22 are adjusted, is made
Clamping device 2 is capable of fixing crankshaft 5;Specific operation is to start cylinder 213, and the telescopic end of cylinder 213 pushes supporting table 214
It moves right, supporting table 214 drives the clamping motor 211 of its upper surface to move right, and polished crankshaft 5 is passed through clamping motor
The second holding ring 223 that first holding ring 212 of 211 output shaft ends connection is connected with 222 left end of shaft is fixed, and makes each
A trunnion axle center and the axle center of rod journal are located at same vertical plane;
(2) preparation polished;The height for adjusting lifting device 3, is against its trunnion polishing portion 42 on trunnion, connecting rod
The polished portion 43 of axis is against on rod journal;Specific operation is to start lifting motor 31, and lifting motor 31 drives 32 turns of lead screw
Dynamic, lead screw 32 drives two nuts 34 to move backward, and nut 34 drives the lower end of connecting rod 35 mobile to 32 direction of both ends of lead screw,
Connecting rod 35 drives shell 41 to move up, so that mounting plate 421 and fixed link 431 be driven to move up, mounting plate 421 is driven
Polishing wheel 422 moves up and makes the top of polishing wheel 422 and the trunnion of polished crankshaft to fit closely, fixed link 431
Lantern ring 432, connection sleeve 433 and telescopic rod 434 is driven to move up, telescopic rod 434 drives lower polishing seat 4363 to move up
And fit closely the medial surface of lower half circle buffing ring 4364 with rod journal, stop lifting motor 31, upper semi-circle will be installed
The upper polishing seat 4361 of buffing ring 4362 is placed on the top of the trunnion of polished crankshaft 5 together, by bolt by upper polishing
Seat 4361 is fixedly connected with lower polishing seat 4363;
(3) it is polished;Starting burnishing device 4 is polished, and concrete operations are that starting clamping motor 211 clamps motor
211 output shaft rotation and the rotation with dynamic crankshaft, crankshaft trunnion rotation and with 422 burnishing of polishing wheel, crankshaft
Rod journal drives polishing seat 4361 to move in a circle with lower polishing seat 4363 using main bearing journal axle center as the center of circle, pitman shaft
Neck and 4364 burnishing of upper semi-circle buffing ring 4362 and lower half circle buffing ring;
(4) work after polishing;The height for adjusting lifting device 3, is against its decline no longer on crankshaft, concrete operations
It is after the completion of polishing, to release the fixation of the first holding ring 212 and the second holding ring 223 to crankshaft, starting cylinder 213 drives branch
Support platform 214 is moved to the left, and is detached from the first clamping device 21 with crankshaft 5, is removed crankshaft 5, start lifting motor 31, drives nut
34 move toward one another on lead screw 32, and the decline of shell 41 is made to set back.
In the present invention using clamping motor 211 drive crank rotation and with polishing wheel 422, upper semi-circle buffing ring 4362 and under
Semicircle buffing ring 4363 rubs, so that the trunnion and rod journal to polished crankshaft 5 polish simultaneously, working efficiency
Height, operation automation are convenient and efficient;Polishing wheel 422, upper semi-circle buffing ring 4362 and lower half circle buffing ring 4363 by bolt into
Row is fixedly mounted, and is easily installed and dismantles and replace to it;After the completion of polishing, burnishing device 4 can be taken in by lifting device 3
11 bottom of mounting groove, avoiding colliding when the device is idle damages.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.