CN117943960A - Crankshaft surface polishing machine - Google Patents
Crankshaft surface polishing machine Download PDFInfo
- Publication number
- CN117943960A CN117943960A CN202410292170.5A CN202410292170A CN117943960A CN 117943960 A CN117943960 A CN 117943960A CN 202410292170 A CN202410292170 A CN 202410292170A CN 117943960 A CN117943960 A CN 117943960A
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- China
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- fixedly connected
- crankshaft
- sleeve
- transmission
- polishing machine
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- 238000005498 polishing Methods 0.000 title claims abstract description 98
- 230000007246 mechanism Effects 0.000 claims abstract description 146
- 230000005540 biological transmission Effects 0.000 claims abstract description 98
- 238000001125 extrusion Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/04—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/02—Bench grinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/06—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by liquid or gas pressure only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a crankshaft surface polishing machine, which belongs to the technical field of crankshaft surface polishing and comprises a polishing machine base, wherein a transverse driving mechanism and a rotation driving mechanism are respectively arranged on two sides of the top of the polishing machine base, a crankshaft rotation center adjusting mechanism is rotationally connected inside the transverse driving mechanism and the rotation driving mechanism, a connecting driving tooth column is fixedly connected on one side of the crankshaft rotation center adjusting mechanism, which is close to one side of the rotation driving mechanism, and adjusting transmission mechanisms are respectively arranged on the two crankshaft rotation center adjusting mechanisms. The polishing device is designed to adjust the transmission mechanism and the crankshaft clamping mechanisms, and the crankshaft is arranged between the two crankshaft clamping mechanisms, so that the polishing block can always generate pressure on the main journal, the polishing work is further realized in the rotating process, then a plurality of main journals can be polished through the movement of the polishing adjusting mechanism, the mounting and dismounting efficiency is high, and the polishing efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of crankshaft surface polishing, and particularly relates to a crankshaft surface polishing machine.
Background
The crankshaft is the most important part in the engine, it bears the force transmitted by the connecting rod, and turn it into torque and output through the crankshaft and drive other accessories on the engine to work, the crankshaft is subjected to centrifugal force of the rotating mass, combined action of gas inertial force and reciprocating inertial force of periodic variation, make the crankshaft bear the action of bending torsion load, therefore require the crankshaft to have sufficient intensity and rigidity, the journal surface needs wear-resisting, work is uniform, equilibrium is good, the rough machining of the crankshaft will use the advanced equipment such as the numerical control lathe, numerical control milling machine, numerical control broaching machine, etc. to carry on numerical control turning, internal milling, turning-broaching of the journal of the main journal, in order to reduce the deflection of the crankshaft processing effectively, the finish machining of the crankshaft will use CNC controlled crankshaft grinding machine to carry on finish machining of its journal extensively, this will be equipped with the automatic dynamic balancing device of the emery wheel, automatic tracking device of the centre frame, automatic measurement, automatic compensation device, emery wheel automatically dresses, constant linear velocity, etc. functional requirement, in order to guarantee the stability of the grinding quality, the high-precision equipment depends on the situation of import, will not change in the estimation, need to polish it to increase the smoothness of its surface after the crankshaft processing.
The existing surface polishing to the crankshaft is divided into manual polishing and mechanical polishing, wherein the manual polishing is simpler in center shaft part polishing during running, but the connecting rod journal part moves circularly in the rotating process, the polishing tool is jacked up to the top of the circumference in the polishing process, so that the bonding strength between the connecting rod journal and the polishing tool is improved, the bonding strength is reduced to the bottom of the circumference or other parts, the surface polishing of the connecting rod journal is not uniform, meanwhile, the mechanical polishing mode is troublesome in clamping adjustment, and the crankshaft polishing efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a crankshaft surface polishing machine.
The technical scheme adopted for solving the technical problems is as follows: the crankshaft surface polishing machine comprises a polishing machine base, wherein a transverse driving mechanism and a rotation driving mechanism are respectively arranged on two sides of the top of the polishing machine base, and a crankshaft rotating center adjusting mechanism is rotationally connected inside the transverse driving mechanism and the rotation driving mechanism;
One side of the crankshaft rotating center adjusting mechanism, which is close to one side of the rotating driving mechanism, is fixedly connected with a connecting driving tooth column, two adjusting transmission mechanisms are arranged on the crankshaft rotating center adjusting mechanisms, crankshaft clamping mechanisms are arranged on the adjusting transmission mechanisms, and the top of the polishing machine base is fixedly connected with a polishing adjusting mechanism.
Further, horizontal actuating mechanism includes the first motor of fixed connection in polishing machine base one side center and two fixed connection first bearing plates in polishing machine base top recess, two rotate between the first bearing plate and be connected with first transmission lead screw, and the output fixed connection of first transmission lead screw and first motor, be provided with the transmission base on the first transmission lead screw, the equal fixedly connected with L type spacing in both ends around the transmission base bottom, the first support sleeve of top fixedly connected with of transmission base, one side fixedly connected with fixed back lid of first support sleeve.
Through the technical scheme, when the crankshaft clamping mechanism is used, the crankshaft is arranged between the two crankshaft clamping mechanisms, the first motor drives the first transmission screw rod to rotate between the two first bearing plates, and then the transmission base is driven to start to move, so that the crankshaft rotation center adjusting mechanism at the top of the transmission base, the adjusting transmission mechanism and the crankshaft clamping mechanism are close to the center until reaching the proper positions.
Further, grooves corresponding to the first bearing plate, the transmission base and the two L-shaped limit strips are formed in the top of the polishing machine base.
Through above-mentioned technical scheme, can realize the spacing slip of transmission base through recess and two L type spacing.
Further, the rotation driving mechanism comprises a second motor, a mounting shell and a second supporting sleeve which are fixedly connected to the top of the polishing machine base respectively, and a transmission worm is arranged at the output end of the second motor in the mounting shell.
Through the technical scheme, the second motor is started to drive the transmission worm to rotate in the installation shell, and then the connecting driving gear column is driven to start rotating, so that the driving of the crankshaft rotating center adjusting mechanism on one side is realized.
Further, the crankshaft center of rotation adjustment mechanism is including rotating the rotation support disc of connecting at first support sleeve or second support sleeve inner wall, one side fixedly connected with protection cover shell of rotation support disc, the inner wall fixedly connected with embedded fixed block of protection cover shell, the top and the bottom of protection cover shell are fixedly connected with top opening cover and bottom closure sleeve respectively, rotate between top opening cover and the bottom closure sleeve and be connected with adjusting threaded rod, the top fixedly connected with of adjusting threaded rod outer wall rotates the support ring, the top of top opening cover is provided with cup joints the shell, install a plurality of bolt assemblies between top opening cover and the cup joints the shell, all be provided with a plurality of rolling steel balls between the top of rotation support ring and top opening cover and the inner wall of cup joints the shell, adjusting threaded rod outer wall is at the top fixedly connected with gear ring of rotation support ring, the top fixedly connected with adjustment drive piece of adjusting threaded rod, the top fixedly connected with locking spacing shell, the front end center fixedly connected with first nut of locking spacing shell, the inner wall sliding connection of locking spacing shell has trapezoidal tooth piece, the front end of locking spacing piece is provided with the screw rod, both ends are all set up to rotate spacing one side of the screw rod.
Through the technical scheme, when the connecting rod journal is polished, the locking screw is screwed to enable the connecting rod journal to rotate in the first nut, the trapezoidal limiting tooth block is pulled outwards, the limitation of the trapezoidal limiting tooth block and the gear ring is relieved, then the adjusting driving block is rotated to enable the adjusting threaded rod to rotate, and then the adjusting driving mechanism is driven to start moving, the adjustment of the rotating center of the crankshaft is achieved, the locking screw is reversely screwed to enable the locking screw to rotate in the first nut after the locking screw is moved to a specific position, and then the trapezoidal limiting tooth block is pushed to enable the trapezoidal limiting tooth block and the gear ring to limit.
Further, the adjusting transmission mechanism comprises a transmission sleeve shell arranged between the adjusting threaded rod and the embedded fixing block, one side of the transmission sleeve shell is fixedly connected with a limiting connection sliding plate, limiting grooves are formed in the front end and the rear end of the limiting connection sliding plate, one side of the limiting connection sliding plate is fixedly connected with a plurality of clamping studs, a plurality of clamping studs are uniformly and spirally connected with second nuts, and one side centers of the front end face and the rear end face of the limiting connection sliding plate are fixedly connected with fixed pointers.
Through above-mentioned technical scheme, rotate and adjust the drive piece and make the regulation threaded rod rotate, and then drive transmission cover shell and spacing connection slide and begin to remove to according to the distance between main journal and the connecting rod axle journal in the bent axle, observe the distance that fixed pointer moved at the scale, and then realize the regulation of bent axle rotation centre of a circle.
Further, the crankshaft clamping mechanism comprises a clamping mechanism shell arranged on one side of a limiting connecting sliding plate, a plurality of fixed lugs corresponding to clamping studs are fixedly connected to one side of the outer wall of the clamping mechanism shell, a rotating disc is rotatably connected to one side of the inner wall of the clamping mechanism shell, conical toothed rings and driving vortex discs are fixedly connected to two sides of the rotating disc respectively, a fixed sleeve and a plurality of arc-shaped sealing strips are fixedly connected to two sides of the inner wall of the rotating disc respectively, a plurality of clamping blocks are slidably connected to one side of the clamping mechanism shell, vortex-shaped teeth are fixedly connected to one side of each clamping block, a limiting self-locking shell is fixedly connected to the top of the clamping mechanism shell, a rotating tooth post is rotatably connected to the inner wall of the limiting self-locking shell, a bevel gear is fixedly connected to the bottom of the rotating tooth post, a square limiting tooth block is slidably connected to one side of the limiting self-locking shell, a connecting rod is fixedly connected to one side center of the square limiting tooth block, and two reset springs are fixedly connected between one side of the square limiting tooth block and the inner wall of the limiting self-locking shell.
Through above-mentioned technical scheme, the pulling connecting rod then drives square spacing tooth piece and slides, remove square spacing tooth piece and the spacing of rotating the tooth post, use hexagonal wrench to insert and rotate tooth post top and begin to rotate, and then drive bevel gear drive toper ring gear and rotate, realize the rotation of drive vortex dish through the rolling disc, the vortex form structure on its surface can with the vortex form tooth meshing on a plurality of grip blocks, and then can drive a plurality of grip blocks and draw close to the center when drive vortex dish rotates, realize the centre gripping work to the bent axle, then loosen the pulling connecting rod, accomplish square spacing tooth piece and the spacing of rotating the tooth post under two reset spring's effect.
Further, polishing adjustment mechanism includes the carriage plate of fixed connection at polishing machine base top, the equal fixedly connected with second bearing plate in top both sides of carriage plate, one side fixedly connected with third motor of carriage plate, the output fixedly connected with second transmission lead screw of third motor, and the second transmission lead screw rotates between two second bearing plates, be provided with special-shaped transmission cover on the second transmission lead screw, equal fixedly connected with folding lag between special-shaped transmission cover and the two second bearing plates, special-shaped transmission cover top front end fixedly connected with hydraulic stem, the output fixedly connected with connection drain pan of hydraulic stem, the top internal surface fixedly connected with two extrusion springs of connection drain pan, two extrusion spring's bottom fixedly connected with sliding block, the polishing piece is installed to the bottom of sliding block.
Through the technical scheme, the third motor drives the second transmission screw rod to rotate between the two second bearing plates, and then drives the special-shaped transmission sleeve to move to the main journal, then the hydraulic rod drives the connecting bottom shell to descend by a certain distance until the polishing block contacts the main journal, and compresses the extrusion spring by a certain distance, so that the polishing block can always generate pressure on the main journal, further polishing work is realized, then a plurality of main journals can be polished through the movement of the polishing adjusting mechanism, and due to certain errors caused by manual visual inspection, the rotating center of the crankshaft rotating center adjusting mechanism and the connecting rod journal of the crankshaft cannot be in the same straight line, but under the action of the extrusion spring, the polishing block always generates pressure on the connecting rod journal, even if the connecting rod journal eccentrically rotates, the pressure change of the extrusion spring is smaller in a controllable range, and therefore the polishing block polishes the connecting rod journal more uniformly.
The beneficial effects of the invention are as follows: (1) According to the polishing device, the crankshaft is arranged between the two crankshaft clamping mechanisms, the second motor is started to drive the transmission worm to rotate in the installation shell, the connecting driving tooth column is driven to start rotating, one side of the crankshaft rotating center adjusting mechanism is driven to drive the adjusting transmission mechanism through the crankshaft rotating center adjusting mechanism, the crankshaft clamping mechanism is driven to rotate, and the other side of the crankshaft clamping mechanism rotates along with the crankshaft clamping mechanism due to the fact that the two crankshaft clamping mechanisms are clamped and fixed, the crankshaft clamping mechanism is supported in the first supporting sleeve in a rotating mode through the crankshaft rotating center adjusting mechanism, at the moment, the crankshaft clamping mechanism is located at the center of the crankshaft rotating center adjusting mechanism, therefore the rotating crankshaft rotates by taking a main journal as a shaft, the third motor drives the second transmission screw to rotate between the two second bearing plates, the special-shaped transmission sleeve is driven to move to the main journal position, the connecting rod is driven to descend by a certain distance until the polishing block contacts the main journal, the polishing block is compressed and the pressing spring for a certain distance, the polishing block can always generate pressure on the main journal, polishing work is achieved, and the polishing journals can be mounted and dismounted more efficiently through the polishing adjusting mechanism; (2) According to the invention, when the connecting rod journal is polished, the locking screw is screwed to rotate in the first nut, the trapezoid limiting tooth block is pulled outwards, the limiting of the trapezoid limiting tooth block and the gear ring is eliminated, then the adjusting driving block is rotated to enable the adjusting threaded rod to rotate, the transmission sleeve shell and the limiting connecting sliding plate are driven to move, the moving distance of the fixed pointer in the graduated scale is observed according to the distance between the main journal and the connecting rod journal in the crankshaft, the locking screw is reversely screwed to rotate in the first nut after the fixed pointer moves to a specific position, the trapezoid limiting tooth block is pushed to limit the trapezoid limiting tooth block and the gear ring, and then the trapezoid limiting tooth block and the gear ring are driven to rotate, and the connecting rod journal is rotated by taking the connecting rod journal as a rotating shaft.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the transverse driving mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the rotary drive mechanism of the present invention;
FIG. 5 is a schematic view of a portion of the transverse driving mechanism of the present invention;
FIG. 6 is a schematic view of the crankshaft center adjustment mechanism and connecting drive tooth post connection structure of the present invention;
FIG. 7 is a schematic view of a portion of the structure of the crank throw adjustment mechanism of the present invention;
FIG. 8 is a schematic cross-sectional view of a crankshaft center adjustment mechanism of the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8 at A;
FIG. 10 is a schematic view of a partially exploded construction of the crankshaft center adjustment mechanism of the present invention;
FIG. 11 is a schematic illustration of the adjustment drive mechanism of the present invention;
FIG. 12 is a schematic cross-sectional view of a crankshaft clamping mechanism of the present invention;
FIG. 13 is a schematic view of the internal structure of the crankshaft clamping mechanism of the present invention;
FIG. 14 is a schematic view of a partially exploded view of the crankshaft clamping mechanism of the present invention;
FIG. 15 is a schematic view of a limiting cross-sectional structure of a rotary tooth post and a square limiting tooth block of the present invention;
FIG. 16 is a schematic view of a folded guard sleeve of the present invention;
FIG. 17 is a schematic view showing a part of the structure of the polishing adjustment mechanism of the present invention;
FIG. 18 is a schematic view of the polishing block structure of the present invention;
Fig. 19 is a cross-sectional view of fig. 18.
Reference numerals: 1. a polishing machine base; 2. a lateral drive mechanism; 201. a first motor; 202. a first bearing plate; 203. a first transmission screw; 204. a transmission base; 205. an L-shaped limit bar; 206. fixing the rear cover; 207. a first support sleeve; 3. a rotation driving mechanism; 301. a second motor; 302. mounting a shell; 303. a second support sleeve; 304. a drive worm; 4. a crankshaft rotation center adjusting mechanism; 401. a rotary support disc; 402. a protective casing; 403. a fixed block is embedded; 404. a top open sleeve; 405. a bottom closing sleeve; 406. adjusting a threaded rod; 407. rotating the support ring; 408. a sleeve joint shell; 409. a bolt assembly; 410. rolling the steel balls; 411. a gear ring; 412. adjusting the driving block; 413. locking the limit shell; 414. a first nut; 415. trapezoidal limiting tooth blocks; 416. locking the screw rod; 417. a graduated scale; 5. connecting with a driving tooth column; 6. adjusting the transmission mechanism; 601. a transmission casing; 602. the limit connection sliding plate; 603. a limit groove; 604. clamping the stud; 605. a second nut; 606. fixing a pointer; 7. a crankshaft clamping mechanism; 701. a clamping mechanism housing; 702. a fixed ear; 703. a rotating disc; 704. conical toothed ring; 705. a fixed sleeve; 706. driving a scroll; 707. an arc-shaped sealing strip; 708. a clamping block; 709. vortex-like teeth; 710. limiting self-locking shell; 711. rotating the tooth column; 712. bevel gears; 713. square spacing tooth block; 714. a connecting rod; 715. a return spring; 8. a polishing adjustment mechanism; 801. a support frame plate; 802. a second bearing plate; 803. a third motor; 804. a second transmission screw rod; 805. folding the protective sleeve; 806. a special-shaped transmission sleeve; 807. a hydraulic rod; 808. connecting the bottom shell; 809. extruding a spring; 810. a sliding block; 811. and polishing the block.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-5, a crank surface polishing machine of this embodiment includes a polishing machine base 1, two sides of the top of the polishing machine base 1 are respectively provided with a transverse driving mechanism 2 and a rotation driving mechanism 3, the transverse driving mechanism 2 includes a first motor 201 fixedly connected to the center of one side of the polishing machine base 1 and two first bearing plates 202 fixedly connected to the inside of a groove at the top of the polishing machine base 1, a first transmission screw 203 is rotatably connected between the two first bearing plates 202, the first transmission screw 203 is fixedly connected with the output end of the first motor 201, a transmission base 204 is provided on the first transmission screw 203, both front and rear ends of the bottom of the transmission base 204 are fixedly connected with L-shaped limiting bars 205, the top of the transmission base 204 is fixedly connected with a first support sleeve 207, one side of the first support sleeve 207 is fixedly connected with a fixed rear cover 206, the crankshaft is arranged between two crankshaft clamping mechanisms 7, a first motor 201 drives a first transmission screw 203 to rotate between two first bearing plates 202, and then drives a transmission base 204 to start moving, so that a crankshaft rotation center adjusting mechanism 4, an adjusting transmission mechanism 6 and the crankshaft clamping mechanisms 7 at the top of the transmission base 204 are close to the center until reaching a proper position, grooves corresponding to the first bearing plates 202, the transmission base 204 and two L-shaped limit bars 205 are formed at the top of the polishing machine base 1, limit sliding of the transmission base 204 can be realized through the grooves and the two L-shaped limit bars 205, a rotation driving mechanism 3 respectively comprises a second motor 301, a mounting shell 302 and a second supporting sleeve 303 which are fixedly connected at the top of the polishing machine base 1, a transmission worm 304 is arranged at the output end of the second motor 301 in the mounting shell 302, the second motor 301 is started to drive the transmission worm 304 to rotate in the installation shell 302, and then the connecting driving gear post 5 is driven to start rotating, so that the driving of the crankshaft rotation center adjusting mechanism 4 on one side is realized.
As shown in fig. 1-10, the inner parts of the transverse driving mechanism 2 and the rotary driving mechanism 3 are both rotatably connected with a crankshaft rotation center adjusting mechanism 4, the crankshaft rotation center adjusting mechanism 4 comprises a rotary supporting disc 401 rotatably connected with the inner wall of the first supporting sleeve 207 or the second supporting sleeve 303, one side of the rotary supporting disc 401 is fixedly connected with a protective casing 402, the inner wall of the protective casing 402 is fixedly connected with an embedded fixed block 403, the top and the bottom of the protective casing 402 are respectively fixedly connected with a top opening sleeve 404 and a bottom closing sleeve 405, an adjusting threaded rod 406 is rotatably connected between the top opening sleeve 404 and the bottom closing sleeve 405, the top of the outer wall of the adjusting threaded rod 406 is fixedly connected with a rotary supporting ring 407, the top of the top opening sleeve 404 is provided with a sleeve housing 408, a plurality of bolt assemblies 409 are arranged between the top opening sleeve 404 and the sleeve housing 408, a plurality of rolling steel balls 410 are arranged between the rotary supporting ring 407 and the top of the top opening sleeve 404 and the inner wall of the sleeve shell 408, the outer wall of the adjusting threaded rod 406 is fixedly connected with a gear ring 411 at the top of the rotary supporting ring 407, the top of the adjusting threaded rod 406 is fixedly connected with an adjusting driving block 412, the top of the sleeve shell 408 is fixedly connected with a locking limiting shell 413, the center of the front end of the locking limiting shell 413 is fixedly connected with a first nut 414, the inner wall of the locking limiting shell 413 is slidably connected with a trapezoid limiting tooth block 415, the front end of the trapezoid limiting tooth block 415 is rotatably connected with a locking screw rod 416, the front end and the rear end of one side of the embedded fixing block 403 are respectively provided with a scale 417, when the connecting rod journal is polished, the locking screw rod 416 is screwed to rotate in the first nut 414, the trapezoid limiting tooth block 415 is pulled outwards, the limitation of the trapezoid limiting tooth block 415 and the gear ring 411 is relieved, then the adjusting driving block 412 is rotated to rotate the adjusting threaded rod 406, and then drives the adjusting transmission mechanism 6 to start moving, so as to realize the adjustment of the rotating circle center of the crankshaft, and after moving to a specific position, the locking screw 416 is reversely screwed to rotate in the first nut 414, so that the trapezoidal limiting tooth block 415 is pushed, and the trapezoidal limiting tooth block 415 and the gear ring 411 are limited.
As shown in fig. 1-15, one side of the crankshaft center adjusting mechanism 4 near one side of the rotation driving mechanism 3 is fixedly connected with a connecting driving gear post 5, two crankshaft center adjusting mechanisms 4 are respectively provided with an adjusting transmission mechanism 6, the adjusting transmission mechanism 6 comprises a transmission sleeve shell 601 arranged between an adjusting threaded rod 406 and an embedded fixed block 403, one side of the transmission sleeve shell 601 is fixedly connected with a limit connecting slide plate 602, both front and rear ends of the limit connecting slide plate 602 are respectively provided with a limit groove 603, one side of the limit connecting slide plate 602 is fixedly connected with a plurality of clamping studs 604, the clamping studs 604 are respectively and spirally connected with a second nut 605, the centers of one sides of the front end surface and the rear end surface of the limit connecting slide plate 602 are respectively and fixedly connected with a fixed pointer 606, the adjusting driving block 412 rotates the adjusting threaded rod 406, and further the transmission sleeve shell 601 and the limit connecting slide plate 602 are driven to start moving, and observing the moving distance of the fixed pointer 606 on the graduated scale 417 according to the distance between the main journal and the connecting rod journal in the crankshaft, thereby realizing the adjustment of the rotating center of the crankshaft, wherein the two adjusting transmission mechanisms 6 are respectively provided with a crankshaft clamping mechanism 7, the crankshaft clamping mechanism 7 comprises a clamping mechanism housing 701 arranged at one side of a limit connecting slide plate 602, one side of the outer wall of the clamping mechanism housing 701 is fixedly connected with a plurality of fixed lugs 702 corresponding to the clamping studs 604, one side of the inner wall of the clamping mechanism housing 701 is rotationally connected with a rotating disk 703, two sides of the rotating disk 703 are respectively and fixedly connected with a conical toothed ring 704 and a driving scroll 706, two sides of the inner wall of the rotating disk 703 are respectively and fixedly connected with a fixed sleeve 705 and a plurality of arc-shaped sealing strips, one side of the clamping mechanism housing 701 is slidingly connected with a plurality of clamping blocks 708, one side of the plurality of clamping blocks 708 is fixedly connected with scroll teeth 709, the top fixedly connected with spacing from lock shell 710 of fixture shell 701, spacing is connected with rotation tooth post 711 from the inner wall rotation of lock shell 710, the bottom fixedly connected with bevel gear 712 of rotation tooth post 711, spacing is connected with square spacing tooth piece 713 from one side sliding connection of lock shell 710, one side center fixedly connected with connecting rod 714 of square spacing tooth piece 713, fixedly connected with two return springs 715 between one side of square spacing tooth piece 713 and the spacing from lock shell 710 inner wall, pulling connecting rod 714 and then driving square spacing tooth piece 713 and rotation tooth post 711's spacing, use hexagonal spanner to insert rotation tooth post 711 top and begin to rotate, and then drive bevel gear 712 drive toper toothed ring 704 rotation, realize driving the rotation of vortex disk 706 through rotating disk 703, the vortex structure on its surface can mesh with the vortex tooth 709 on a plurality of grip blocks 708, and then can drive a plurality of grip blocks 708 to the center draw close, realize the centre gripping work to the bent axle, then loosen pulling connecting rod 714, accomplish the spacing of spacing tooth piece 713 and rotation tooth post 711 under the effect of two return springs 715.
As shown in fig. 1-19, the top of the polishing machine base 1 is fixedly connected with a polishing adjusting mechanism 8, the polishing adjusting mechanism 8 comprises a supporting frame plate 801 fixedly connected to the top of the polishing machine base 1, two sides of the top of the supporting frame plate 801 are fixedly connected with a second bearing plate 802, one side of the supporting frame plate 801 is fixedly connected with a third motor 803, the output end of the third motor 803 is fixedly connected with a second transmission screw 804, the second transmission screw 804 rotates between the two second bearing plates 802, the second transmission screw 804 is provided with a special-shaped transmission sleeve 806, a folding protective sleeve 805 is fixedly connected between the special-shaped transmission sleeve 806 and the two second bearing plates 802, the front end of the top of the special-shaped transmission sleeve 806 is fixedly connected with a hydraulic rod 807, the output end of the hydraulic rod 807 is fixedly connected with a connecting bottom shell 808, the inner surface of the top of the connecting bottom shell 808 is fixedly connected with two extrusion springs 809, the bottoms of the two extrusion springs 809 are fixedly connected with sliding blocks 810, polishing blocks 811 are arranged at the bottoms of the sliding blocks 810, a third motor 803 drives a second transmission screw 804 to rotate between two second bearing plates 802, and further drives a special-shaped transmission sleeve 806 to move to the position of a main journal, then a hydraulic rod 807 drives a connecting bottom shell 808 to descend a certain distance until the polishing blocks 811 contact the main journal, one end of each extrusion spring 809 is compressed to enable the polishing blocks 811 to always generate pressure on the main journal, further polishing work is achieved, then a plurality of main journals can be polished through the movement of a polishing adjusting mechanism 8, and due to certain errors caused by manual visual observation, the rotating center of a crankshaft rotation center adjusting mechanism 4 and the connecting rod journals of a crankshaft cannot be on the same straight line, but under the action of the extrusion springs 809, the polishing blocks 811 always generate pressure on the connecting rod journals, even if the rod journal is eccentrically rotating, the pressure variation of the pressing spring 809 is small in a controllable range, so that the polishing block 811 polishes the rod journal more uniformly.
The working principle of this embodiment is as follows, when in use, the crankshaft is installed between two crankshaft clamping mechanisms 7, the first motor 201 drives the first transmission screw 203 to rotate between two first bearing plates 202, and then drives the transmission base 204 to start moving, so that the crankshaft rotation center adjusting mechanism 4 at the top of the transmission base 204, the adjusting transmission mechanism 6 and the crankshaft clamping mechanisms 7 approach to the center until reaching the proper position, then the connecting rod 714 is pulled to drive the square spacing tooth block 713 to slide, the spacing of the square spacing tooth block 713 and the rotating tooth column 711 is released, the top of the rotating tooth column 711 is inserted into a hexagonal wrench to start rotating, and then drives the bevel gear 712 to drive the tapered toothed ring 704 to rotate, the rotation of the driving vortex disc 706 is realized through the rotating disc 703, and then the vortex structure on the surface of the driving vortex disc 706 can drive the plurality of clamping blocks 708 to approach the center when the driving vortex disc 706 rotates, so as to realize the clamping work of the crankshaft, then the connecting rod 714 is pulled, the square spacing tooth block 713 and the rotating tooth block are completed under the action of two reset springs 715, and the spacing of the square spacing tooth block 713 and the rotating tooth column 711 are selected according to the widths of the connecting rod and the corresponding spindle nut 810 are installed at the bottom of the spindle nut 810 and the spindle nut is selected;
Then, the second motor 301 is started to drive the transmission worm 304 to rotate in the installation shell 302, and then the connecting driving gear post 5 starts to rotate, so that one side of the crankshaft rotation center adjusting mechanism 4 is driven, the crankshaft rotation center adjusting mechanism 4 can drive the adjusting transmission mechanism 6, and then the crankshaft clamping mechanism 7 is driven to rotate, and as the clamping between the two crankshaft clamping mechanisms 7 is fixed, the other side of the crankshaft clamping mechanism 7 rotates along with the rotation, and the crankshaft rotation center adjusting mechanism 4 completes the rotating support in the first support sleeve 207, at the moment, the crankshaft clamping mechanism 7 is positioned in the center of the crankshaft rotation center adjusting mechanism 4, so that the rotating crankshaft rotates by taking a main journal as a shaft, then the third motor 803 drives the second transmission screw 804 to rotate between the two second bearing plates 802, and then drives the special-shaped transmission sleeve 806 to move to the main journal position, and then the hydraulic rod 807 drives the connecting bottom shell 808 to descend by a certain distance until the polishing block 811 contacts the main journal, and compresses one end distance of the pressing spring 809, so that the polishing block 811 can always press the main journal, and further realize polishing work, and then the polishing work can be performed on a plurality of main journals by the movement of the polishing adjusting mechanism 8;
When the connecting rod journal is polished, the locking screw 416 is screwed to rotate in the first nut 414, the trapezoidal limiting tooth block 415 is pulled outwards, the limitation of the trapezoidal limiting tooth block 415 and the gear ring 411 is removed, then the adjusting driving block 412 is rotated to enable the adjusting threaded rod 406 to rotate, the transmission sleeve shell 601 and the limiting connecting sliding plate 602 are driven to start moving, the moving distance of the fixed pointer 606 in the graduated scale 417 is observed according to the distance between the main journal and the connecting rod journal in the crankshaft, after the fixed pointer moves to a specific position, the locking screw 416 is reversely screwed to rotate in the first nut 414, the trapezoidal limiting tooth block 415 is pushed to enable the trapezoidal limiting tooth block 415 and the gear ring 411 to limit, and then the trapezoidal limiting tooth block 415 and the gear ring 411 are driven to rotate, and the connecting rod journal is rotated by taking the connecting rod journal as a rotating shaft, and the connecting rod journal is polished by the polishing adjusting mechanism 8, and the rotating circle center of the crankshaft rotation of the adjusting mechanism 4 and the connecting rod journal of the crankshaft cannot be on the same straight line due to certain error of manual observation, but under the action of the pressing spring 809, the polishing block 811 always polishes the connecting rod journal under the pressure, even if the connecting rod journal rotates eccentrically, the pressing force of the pressing spring 809 is small, and the pressing force of the connecting rod journal is uniform in a controllable range, and the polishing of the connecting rod journal is changed.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. The utility model provides a bent axle surface polishing machine, includes polishing machine base (1), its characterized in that: the two sides of the top of the polishing machine base (1) are respectively provided with a transverse driving mechanism (2) and a rotation driving mechanism (3), and the interiors of the transverse driving mechanism (2) and the rotation driving mechanism (3) are respectively and rotatably connected with a crankshaft rotation center adjusting mechanism (4);
one side of the crankshaft rotating center adjusting mechanism (4) close to one side of the rotating driving mechanism (3) is fixedly connected with a connecting driving gear column (5), two adjusting transmission mechanisms (6) are arranged on the crankshaft rotating center adjusting mechanism (4), crankshaft clamping mechanisms (7) are arranged on the adjusting transmission mechanisms (6), and a polishing adjusting mechanism (8) is fixedly connected to the top of the polishing machine base (1).
2. The crankshaft surface polishing machine according to claim 1, wherein the transverse driving mechanism (2) comprises a first motor (201) fixedly connected to the center of one side of the polishing machine base (1) and two first bearing plates (202) fixedly connected to the inside of a groove at the top of the polishing machine base (1), a first transmission screw (203) is rotatably connected between the two first bearing plates (202), the first transmission screw (203) is fixedly connected with the output end of the first motor (201), a transmission base (204) is arranged on the first transmission screw (203), L-shaped limiting strips (205) are fixedly connected to the front end and the rear end of the bottom of the transmission base (204), a first supporting sleeve (207) is fixedly connected to the top of the transmission base (204), and a fixed rear cover (206) is fixedly connected to one side of the first supporting sleeve (207).
3. The crankshaft surface polishing machine according to claim 2, wherein the top of the polishing machine base (1) is provided with grooves corresponding to the first bearing plate (202), the transmission base (204) and the two L-shaped limit bars (205).
4. The crankshaft surface polishing machine according to claim 2, wherein the rotation driving mechanism (3) comprises a second motor (301), a mounting housing (302) and a second supporting sleeve (303) fixedly connected to the top of the polishing machine base (1), and a transmission worm (304) is mounted at the output end of the second motor (301) in the mounting housing (302).
5. The crankshaft surface polishing machine as claimed in claim 4, wherein the crankshaft rotation center adjusting mechanism (4) comprises a rotation supporting disc (401) rotatably connected to an inner wall of the first supporting sleeve (207) or the second supporting sleeve (303), one side of the rotation supporting disc (401) is fixedly connected with a protection casing (402), an inner wall of the protection casing (402) is fixedly connected with an embedded fixed block (403), a top opening sleeve (404) and a bottom closing sleeve (405) are respectively fixedly connected to the top and the bottom of the protection casing (402), an adjusting threaded rod (406) is rotatably connected between the top opening sleeve (404) and the bottom closing sleeve (405), a rotation supporting ring (407) is fixedly connected to the top of an outer wall of the adjusting threaded rod (406), a sleeve (408) is arranged at the top of the top opening sleeve (404), a plurality of bolt assemblies (409) are mounted between the top opening sleeve (404) and the sleeve (408), a plurality of steel balls (411) are arranged between the rotation supporting ring (407) and the top of the top opening sleeve (404) and the inner wall of the sleeve (408), a plurality of steel balls (410) are connected to the outer wall of the adjusting threaded rod (406), the top fixedly connected with locking spacing shell (413) of cup joint shell (408), the front end center fixedly connected with first nut (414) of locking spacing shell (413), the inner wall sliding connection of locking spacing shell (413) has trapezoidal spacing tooth piece (415), the front end rotation of trapezoidal spacing tooth piece (415) is connected with locking screw (416), both ends all are provided with scale (417) around embedded fixed block (403) one side.
6. The crankshaft surface polishing machine according to claim 5, wherein the adjusting transmission mechanism (6) comprises a transmission sleeve (601) arranged between an adjusting threaded rod (406) and an embedded fixing block (403), one side of the transmission sleeve (601) is fixedly connected with a limiting connection sliding plate (602), limiting grooves (603) are formed in the front end and the rear end of the limiting connection sliding plate (602), one side of the limiting connection sliding plate (602) is fixedly connected with a plurality of clamping studs (604), a plurality of second nuts (605) are spirally connected on the clamping studs (604), and one side centers of the front end face and the rear end face of the limiting connection sliding plate (602) are fixedly connected with fixed pointers (606).
7. The crankshaft surface polishing machine as claimed in claim 6, wherein the crankshaft clamping mechanism (7) comprises a clamping mechanism housing (701) mounted on one side of a limit connection sliding plate (602), a plurality of fixing lugs (702) corresponding to clamping studs (604) are fixedly connected to one side of the outer wall of the clamping mechanism housing (701), a rotating disc (703) is rotatably connected to one side of the inner wall of the clamping mechanism housing (701), conical toothed rings (704) and driving vortex plates (706) are fixedly connected to two sides of the rotating disc (703) respectively, a fixing sleeve (705) and a plurality of arc-shaped sealing strips (707) are fixedly connected to two sides of the inner wall of the rotating disc (703), a plurality of clamping blocks (708) are slidably connected to one side of the clamping mechanism housing (701), vortex-shaped teeth (709) are fixedly connected to one side of the clamping blocks (708), a limit self-locking housing (710) is fixedly connected to the top of the clamping mechanism housing (701), a rotating toothed column (703) is rotatably connected to one side of the inner wall of the limiting self-locking housing (710), a conical toothed column (704) is fixedly connected to two sides of the rotating column (703), a fixing sleeve (705) is fixedly connected to one side of the limiting bevel gear (713), a limit connection square tooth (713) is fixedly connected to one side of the limiting bevel gear (713), two return springs (715) are fixedly connected between one side of the square limiting tooth block (713) and the inner wall of the limiting self-locking shell (710).
8. The crankshaft surface polishing machine according to claim 1, wherein the polishing adjustment mechanism (8) comprises a supporting frame plate (801) fixedly connected to the top of the polishing machine base (1), two sides of the top of the supporting frame plate (801) are fixedly connected with a second bearing plate (807), one side of the supporting frame plate (801) is fixedly connected with a third motor (803), the output end of the third motor (803) is fixedly connected with a second transmission screw (804), the second transmission screw (804) rotates between two second bearing plates (802), a special-shaped transmission sleeve (806) is arranged on the second transmission screw (804), folding protective sleeves (805) are fixedly connected between the special-shaped transmission sleeve (806) and the two second bearing plates (802), the front end of the top of the special-shaped transmission sleeve (806) is fixedly connected with a hydraulic rod (807), the output end of the hydraulic rod (807) is fixedly connected with a bottom shell (808), the inner surface of the top of the bottom shell (808) is fixedly connected with two extrusion springs (809), the bottom of the two extrusion springs (809) are fixedly connected with a sliding block (810), and the sliding block (810) is arranged at the bottom of the sliding block (810).
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| CN202410292170.5A CN117943960B (en) | 2024-03-14 | 2024-03-14 | Crankshaft surface polishing machine |
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| CN202410292170.5A CN117943960B (en) | 2024-03-14 | 2024-03-14 | Crankshaft surface polishing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118238053A (en) * | 2024-05-09 | 2024-06-25 | 东台华光钢格板有限公司 | Polishing device for crankshaft machining |
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| CN117943960B (en) | 2024-06-07 |
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