Disclosure of Invention
The invention mainly aims to provide a bearing cylindrical grinding machine, which aims to reduce the time for debugging a bearing, thereby improving the processing efficiency.
In order to achieve the above purpose, the invention provides a bearing cylindrical grinding machine, which comprises a bottom plate, wherein a transmission box is arranged on the bottom plate, a magnetic chuck is arranged on one side of the transmission box, a grinding mechanism is arranged on one side of the magnetic chuck, a fixed disc is arranged on one side of the magnetic chuck, which is far away from the transmission box, a first fixed cylinder is fixedly connected to one side of the fixed disc, a second fixed cylinder is fixedly connected to the first fixed cylinder through a plurality of connecting frames, the central axes of the first fixed cylinder and the second fixed cylinder coincide with the central axis of the magnetic chuck, the outer surfaces of the first fixed cylinder and the second fixed cylinder are connected with positioning plates through a plurality of first connecting rods, each positioning plate is circumferentially arranged by taking the first fixed cylinder as the center of a circle, one end of each first connecting rod is respectively in rotary connection with the outer surface of the corresponding first fixed cylinder and the second fixed cylinder, the other end of each first connecting rod is in rotary connection with the positioning plate, one side of each first connecting rod is obliquely arranged from one side of the first fixed cylinder to one side, which is far away from the magnetic chuck, and each positioning plate is provided with an adjusting mechanism for enabling each positioning plate to be outwards expanded.
In one possible implementation manner, the adjusting mechanism comprises a first movable cylinder, a second movable cylinder, an adjusting screw, an adjusting block and a plurality of second connecting rods, wherein one sides of the second connecting rods are rotationally connected with the outer surfaces of the first movable cylinder and the second movable cylinder, the adjusting screw is rotationally connected with the inside of the first fixed cylinder and the inside of the second fixed cylinder, one side of the adjusting screw extends to the outside of the second fixed cylinder and is fixedly connected with the adjusting block, the first movable cylinder is arranged between the first fixed cylinder and the second fixed cylinder and is in threaded connection with the adjusting screw, the second movable cylinder is arranged on one side of the adjusting screw far away from the magnetic chuck and is in threaded connection with the adjusting screw, the other side of each second connecting rod is rotationally connected with the positioning plate, and one side of each second connecting rod is obliquely arranged from one side of the first movable cylinder to one side close to the magnetic chuck.
In one possible implementation manner, the bottom plate is provided with a cooling mechanism for cooling the bearing, the cooling mechanism comprises a filter box, a filter screen arranged in the filter box and a cooling pipe, the filter box is arranged at the top of the bottom plate and positioned below the grinding mechanism, one side of the cooling pipe is arranged above the grinding mechanism, and the other side of the cooling pipe is communicated with the bottom of the filter box through a water pump.
In a possible implementation manner, a vibration mechanism for vibrating the filter screen up and down is arranged in the filter box, the vibration mechanism comprises elastic pieces arranged at four corners of the bottom of the filter screen and a driving assembly for intermittently enabling the filter screen to compress the elastic pieces, support plates are fixedly connected to four corners of the filter box, which are close to the bottom of the filter screen, of the filter box, one end of each elastic piece is abutted to the surface of the support plate, and the other end of each elastic piece is abutted to the bottom of the filter screen.
In one possible implementation mode, the driving assembly comprises a traction block, a rotating shaft and a servo motor, wherein the rotating shaft rotates inside the filtering box and is arranged at the bottom of the filtering net, the servo motor is arranged on the side face of the filtering box, the output end of the servo motor is fixedly connected with the rotating shaft, the traction block is arranged at the bottom of the filtering net and is fixedly connected with the bottom of the filtering net, an extension part is arranged on one side of the traction block, a rotating cylinder is fixedly connected with one side of the rotating shaft, which is close to the traction block, a plurality of pushing rods are arranged on the outer surface of the rotating cylinder at intervals, and each pushing rod is circumferentially arranged by taking the rotating cylinder as a circle center, and the pushing rods are in conflict with the extension part.
In one possible embodiment, each pushing rod is rotatably connected with a pulley, and each pulley abuts against the extension part.
In one possible implementation mode, the top of each supporting plate is fixedly connected with a guide rod, the filter screen is connected with each guide rod in a sliding mode, and each elastic piece is sleeved on the outer surface of the wire rod respectively.
In a possible implementation manner, still be equipped with the clean subassembly that is used for clearing up bearing surface impurity after grinding on the bottom plate, clean subassembly includes air feed cylinder, piston, clean shower nozzle, air supply pipe, first check valve, second check valve, intake pipe, two third connecting rods, fourth connecting rod, air feed cylinder and the inside fixed connection of rose box, air feed cylinder inside is equipped with the air feed chamber, the piston is connected with the inside sliding of air feed chamber, air supply pipe, intake pipe all are kept away from one side intercommunication of piston with the air feed chamber, clean shower nozzle passes through the support frame setting in magnetism and inhales chuck bottom, the other end and the inside intercommunication of clean shower nozzle of air supply pipe, one side that the pivot is close to the piston is equipped with the opening, two the third connecting rod sets up respectively in open-ended both sides, and with pivot fixed connection, the one end and the two third connecting rods of fourth connecting rod rotate to be connected, the other end and the piston rotate to be connected, and the length of piston is greater than the length of third connecting rod, first check valve sets up on the intake pipe for the intake pipe can's air inlet pipe, can't give vent to anger, the second air supply pipe can only be given vent to anger at the air pipe.
In one possible implementation manner, rolling bearings are arranged in the first fixing cylinder and the second fixing cylinder, the adjusting screw rod is fixedly connected with an inner ring of the rolling bearing, and the fixing disc is fixedly connected with the magnetic chuck through a plurality of bolts.
According to the technical scheme, the fixing disc, the first fixing cylinder, the second fixing cylinder, the positioning plates and the adjusting mechanism are arranged, so that before a large bearing is clamped by a worker, the positioning plates can be outwards opened by the adjusting mechanism until the positioning plates are matched with the inner diameter of the outer ring of the bearing. Then, the worker lifts the bearing by using a crane, brings the inner circle of the outer race of the bearing into contact with the surface of each positioning plate, and then pushes the bearing slowly along the surface of the positioning plate into contact with the magnetic chuck. Then, the magnetic chuck is electrified to fix the bearing on the surface of the magnetic chuck through electromagnetic attraction. The locating plate can be used for initially locating and supporting the bearing, so that the time and effort for debugging the position of the bearing ring by an operator are greatly reduced, and the installation efficiency and the machining efficiency of the grinding machine are improved. In addition, the adjusting mechanism can enable the positioning plate to be outwards opened or inwards contracted, the large-sized bearing ring with different sizes is adapted, and the universality and the adaptability of the grinding machine are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first embodiment;
FIG. 2 is a schematic view of a structure of a fixing plate and an adjusting mechanism in the first embodiment;
fig. 3 is a schematic structural diagram of a second embodiment;
FIG. 4 is a schematic diagram of a structure of a filtering box and a vibration mechanism in the second embodiment;
FIG. 5 is a schematic diagram of a structure of a filter, a driving assembly and a cleaning assembly in a second embodiment;
FIG. 6 is an enlarged schematic view of FIG. 5A;
fig. 7 is a schematic view of a partial structure of the drive assembly and the cleaning assembly in cross section.
The reference numerals comprise 1, a bottom plate, 101, a transmission case, 102, a magnetic chuck, 103, a fixed disk, 104, a first fixed cylinder, 105, a connecting frame, 106, a second fixed cylinder, 107, a first connecting rod, 108, a positioning plate, 2, a grinding mechanism, 3, a first movable cylinder, 301, a second movable cylinder, 302, an adjusting screw, 303, an adjusting block, 304, a second connecting rod, 305, a rolling bearing, 306, a bolt, 4, a filter case, 401, a filter screen, 402, a cooling pipe, 403, an elastic piece, 404, a supporting plate, 5, a traction block, 501, a rotating shaft, 502, a servo motor, 503, an extension part, 504, a rotating cylinder, 505, a pushing rod, 506, a pulley, 507, a guide rod, 6, an air supply cylinder, 601, a piston, 602, a cleaning nozzle, 603, an air supply pipe, 604, a first one-way valve, 605, a second one-way valve, 606, an air inlet pipe, 607, a third connecting rod, 608, a fourth, 609, an air supply cavity, 610, a supporting frame, 611 and an opening.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The present application 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 application 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 application.
Examples
Referring to fig. 1-2, the present embodiment provides a bearing cylindrical grinding machine, which comprises a bottom plate 1, wherein a transmission case 101 is arranged on the bottom plate 1, a magnetic chuck 102 is arranged on one side of the transmission case 101, and a grinding mechanism 2 is arranged on one side of the magnetic chuck 102. During the bearing grinding process, the magnetic chuck 102 rotates in the opposite direction to the grinding wheel in the grinding mechanism 2, that is, one rotates clockwise and the other rotates counterclockwise, so that the outer circle of the bearing is ground. As for how the magnetic chuck 102 attracts the bearing, the related content is described in detail in the patent publication CN106346322B, and therefore, the description of the prior art is omitted in this embodiment.
Further, a fixed disk 103 is arranged on one side of the magnetic chuck 102 far away from the transmission case 101, a first fixed cylinder 104 is fixedly connected to one side of the fixed disk 103, a second fixed cylinder 106 is fixedly connected to the first fixed cylinder 104 through a plurality of connecting frames 105, the central axes of the first fixed cylinder 104 and the second fixed cylinder 106 coincide with the central axis of the magnetic chuck 102, positioning plates 108 are connected to the outer surfaces of the first fixed cylinder 104 and the second fixed cylinder 106 through a plurality of first connecting rods 107, the positioning plates 108 are circumferentially arranged by taking the first fixed cylinder 104 as a center of a circle, one end of each first connecting rod 107 is respectively connected with the outer surfaces of the corresponding first fixed cylinder 104 and the corresponding second fixed cylinder 106 in a rotating manner, the other end of each first connecting rod 107 is respectively connected with the positioning plates 108 in a rotating manner, one side of each first connecting rod 107 is obliquely arranged from one side of the first fixed cylinder 104 or the second fixed cylinder 106 to one side far away from the magnetic chuck 102, and an adjusting mechanism for enabling each positioning plate 108 to be outwards or inwards contracted is arranged on the fixed disk 103.
Before a worker installs a large bearing, the inner diameter of the inner circle of the bearing is measured first, and then the distance between the two positioning plates 108 is adjusted by an adjusting mechanism so as to be matched with the inner diameter of the inner circle of the bearing. Then, the worker lifts the bearing by using a crane, brings the inner circle of the outer race of the bearing into contact with the surface of each positioning plate 108, and then pushes the bearing slowly along the surface of the positioning plate 108 into contact with the magnetic chuck 102. Subsequently, the magnetic chuck 102 is energized, so that the bearing is fixed on the surface of the magnetic chuck 102 by electromagnetic attraction. The positioning plate 108 can be used for initially positioning and supporting the bearing, so that the time and effort for adjusting the position of the bearing ring by an operator are greatly reduced, and the installation efficiency is improved.
Specifically, the adjusting mechanism includes a first movable cylinder 3, a second movable cylinder 301, an adjusting screw 302, an adjusting block 303, and a plurality of second connecting rods 304, one sides of which are rotatably connected to the outer surfaces of the first movable cylinder 3 and the second movable cylinder 301, the adjusting screw 302 is rotatably connected to the inside of the first fixed cylinder 104 and the second fixed cylinder 106, one side of the adjusting screw 302 extends to the outside of the second fixed cylinder 106 and is fixedly connected to the adjusting block 303, the first movable cylinder 3 is disposed between the first fixed cylinder 104 and the second fixed cylinder 106 and is in threaded connection with the adjusting screw 302, the second movable cylinder 301 is disposed on one side of the adjusting screw 302 away from the magnetic chuck 102 and is in threaded connection with the adjusting screw 302, the other sides of the second connecting rods 304 are rotatably connected to the positioning plate 108, and one side of each second connecting rod 304 is disposed obliquely from one side of the first movable cylinder 3 or the second movable cylinder 301 to the side close to the magnetic chuck 102.
When in use, a worker can rotate the adjusting block 303 through a tool, the adjusting block 303 drives the adjusting screw rod 302 to rotate, and then the first movable cylinder 3 and the second movable cylinder 301 are driven to move towards the direction approaching the magnetic chuck 102 at the same time. At the same time, the first movable cylinder 3 and the second movable cylinder 301 drive one side of the second connecting rod 304 to move, and the other side of the second connecting rod 304 pushes the positioning plate 108 to expand outwards. At the same time, the first link 107 rotates clockwise by a certain angle under the action of the positioning plate 108.
The scheme realizes synchronous adjustment of a plurality of positioning plates 108 through one adjusting screw rod 302, and is simple, convenient and quick to operate. The threaded connection mode enables the positioning plate 108 to be locked at any position, so that the adaptability of the positioning plate 108 is enhanced, and bearings with different inner diameters can be effectively positioned.
In this embodiment, one side of each first link 107 is inclined from one side of the first fixed cylinder 104 or the second fixed cylinder 106 to one side away from the magnetic chuck 102, and one side of each second link 304 is inclined from one side of the first movable cylinder 3 or the second movable cylinder 301 to one side close to the magnetic chuck 102. By the design, the positioning plate 108 forms a triangle structure among the first connecting rod 107, the second connecting rod 304 and the adjusting screw rod 302 when supporting the bearing, so that the supporting capacity and the structural strength of the positioning plate 108 are improved, and the positioning plate can provide more stable support and positioning for heavier bearings.
In this embodiment, rolling bearings 305 are disposed in the first and second fixed barrels 104 and 106, an adjusting screw 302 is fixedly connected to an inner ring of the rolling bearings 305, and a fixed disk 103 is fixedly connected to the magnetic chuck 102 through a plurality of bolts 306. The rolling bearing 305 can effectively reduce friction resistance when the adjusting screw rod 302 rotates, improves flexibility and stability of rotation, and is convenient for workers to operate. Secondly, fixed disk 103 is through a plurality of bolts 306 and magnetism chuck 102 fixed connection, and this kind of connected mode is convenient for the installation and the dismantlement of fixed disk 103, simultaneously, the workman can change not unidimensional fixed disk 103 and be used for supporting and the structure of location bearing on as required, ensures to be able to carry out effective location to the bearing of equidimension not.
Examples
On the basis of embodiment 1, referring to fig. 3-7, in this embodiment, a cooling mechanism for cooling a bearing is provided on a base plate 1, the cooling mechanism includes a filter box 4, a filter screen 401 provided inside the filter box 4, and a cooling pipe 402, the filter box 4 is provided on the top of the base plate 1 and is located below a grinding mechanism 2 (i.e. below a grinding wheel in the grinding mechanism 2), one side of the cooling pipe 402 is provided above the grinding mechanism 2, and the other side of the cooling pipe 402 is communicated with the bottom of the filter box 4 by a water pump.
The outlet of the cooling tube 402 should be directed to the position of the grinding mechanism 2 where the grinding wheel contacts the outer circle of the bearing, so as to effectively reduce the temperature of the grinding area and prevent the bearing from being burned due to high temperature. At the same time, the cooling liquid can wash away the particles generated in the grinding process and flow into the filter box 4 together with the cooling liquid.
In addition, the design enables the cooling liquid to be recycled in the cooling system, the cooling liquid is pumped to the cooling pipe 402 through the water pump from the filter box 4, then is sprayed to the grinding mechanism 2 through the cooling pipe 402 to cool the bearing, then impurities generated by carrying grinding flow back to the filter box 4, and after being filtered through the filter screen 401, the cooling liquid is pumped back to the cooling pipe 402 again, so that a closed loop circulation system is formed, the waste of water resources is avoided, and the utilization efficiency of water is improved. Notably, the cooling tube 402 may also be connected to an external water source.
In this embodiment, a vibration mechanism for vibrating the filter screen 401 up and down is disposed inside the filter box 4, the vibration mechanism includes elastic members 403 disposed at four corners of the bottom of the filter screen 401 and a driving assembly for intermittently compressing the elastic members 403 by the filter screen 401, support plates 404 are fixedly connected to four corners of the filter box 4 near the bottom of the filter screen 401, one end of each elastic member 403 is abutted to the surface of the support plate 404, and the other end of each elastic member 403 is abutted to the bottom of the filter screen 401.
The vibration mechanism can prevent impurities from accumulating on the filter screen 401, so that the filter effect of the filter screen 401 is better, frequent replacement of the filter screen 401 due to impurity blockage is avoided, the service life of the filter screen 401 is prolonged, and the production cost is reduced.
Specifically, the drive assembly includes traction block 5, pivot 501, servo motor 502, pivot 501 and the inside rotation of rose box 4, and set up in the bottom of filter screen 401, servo motor 502 sets up the side at rose box 4, and servo motor 502's output and pivot 501 fixed connection, traction block 5 sets up in the bottom of filter screen 401, and with filter screen 401 bottom fixed connection, one side of traction block 5 is equipped with extension 503, one side fixedly connected with rotary drum 504 that the pivot 501 is close to traction block 5, the surface of rotary drum 504 is equipped with a plurality of and the catch bars 505 that the interval set up, and each catch bar 505 uses rotary drum 504 as centre of a circle circumference setting, catch bar 505 is contradicted with extension 503.
When in use, a worker starts the servo motor 502, the output end of the servo motor 502 drives the rotating shaft 501 to rotate, the rotating shaft 501 drives the rotating cylinder 504 to rotate, and the rotating cylinder 504 drives the pushing rod 505 to rotate. When one side of the pushing rod 505 contacts with the extension portion 503 on the traction block 5, the pushing rod 505 will drive the extension portion 503 and the traction block 5 to move downward, and the other side of the traction block 5 will move the filter 401 in the direction of compressing the elastic member 403. When the push rod 505 is disengaged from the extension 503, each elastic member 403 resumes its shape, moving the sieve 401 in the opposite direction. The action is repeated each time the next push rod 505 contacts extension 503, thereby vibrating screen 401 and avoiding clogging of its surface due to the accumulation of excessive particulate matter.
The driving assembly in the scheme can realize up-and-down vibration of the filter screen 401 only by rotating the servo motor 502 in one direction, so that the service life of the servo motor 502 is prolonged.
Further, a pulley 506 is rotatably connected to each push rod 505, and each pulley 506 abuts against the extension 503. Through the pulley 506 that sets up, become sliding friction rolling friction, reduced the wearing and tearing between push rod 505 and the traction block 5 (extension 503), improved the life of part, also made filter screen 401 vibrations process more steady smooth and easy simultaneously.
Secondly, guide rods 507 are fixedly connected to the tops of the support plates 404, the filter screen 401 is slidably connected with the guide rods 507, and the elastic pieces 403 are respectively sleeved on the outer surfaces of the guide rods. The guide rod 507 can play a guide role in vibration of the filter screen 401, so that the filter screen 401 is kept stable in the vertical vibration process, offset or vibration cannot occur, and stability and reliability of a vibration mechanism are improved. At the same time, the situation that the elastic element 403 is not deviated or misplaced in the compression and extension process is ensured, so that the service life of the elastic element 403 is prolonged.
When the grinding wheel grinds the excircle of the bearing, abrasive particles on the grinding wheel possibly remain on the surface of the workpiece, and the contact quality between the grinding wheel and the workpiece can be influenced by the residual particles, so that uneven grinding in the grinding process is caused. For example, the presence of particulate matter may cause localized non-uniformities in the grinding wheel, thereby causing localized over-grinding or under-grinding, affecting the size and surface quality of the workpiece.
In order to avoid such a situation, the cleaning component for cleaning the impurities on the surface of the bearing after grinding is further disposed on the bottom plate 1, the cleaning component comprises an air supply cylinder 6, a piston 601, a cleaning nozzle 602, an air supply pipe 603, a first one-way valve 604, a second one-way valve 605, an air inlet pipe 606, two third connecting rods 607 and a fourth connecting rod 608, the air supply cylinder 6 is fixedly connected with the inside of the filter box 4, an air supply cavity 609 is disposed in the air supply cylinder 6, the piston 601 is slidably connected with the inside of the air supply cavity 609, the air supply pipe 603 and the air inlet pipe 606 are both communicated with one side of the air supply cavity 609 far away from the piston 601, the cleaning nozzle 602 is disposed at the bottom of the magnetic chuck 102 through a supporting frame 610, the other end of the air supply pipe 603 is communicated with the inside of the cleaning nozzle 602, an opening 611 is disposed on one side of the rotating shaft 501 close to the piston 601, the two third connecting rods are disposed on two sides of the opening 611 respectively, one end of the fourth connecting rod 608 is rotatably connected with the two third connecting rods 607, the other end of the fourth connecting rod 608 is rotatably connected with the piston 601, and the length of the piston 601 is longer than the third connecting rod, the first one-way valve 604 is disposed on the side of the air inlet pipe 606, the air inlet pipe 606 is only can not be disposed on the air inlet pipe 603, and can only be made to be different from the air inlet pipe 603.
Through setting up clean subassembly, can effectively get rid of particulate matter and impurity on the bearing excircle surface after the grinding to ensure the homogeneity of bearing excircle when grinding next time, and then guarantee the final product quality of bearing.
When the rotating shaft 501 rotates under the action of the servo motor 502, the rotating shaft 501 drives the third connecting rod 607 to rotate, and the third connecting rod 607 drives one side of the fourth connecting rod 608 to rotate, so that the other end of the fourth connecting rod 608 drives the piston 601 to move in the air supply cavity 609. When the piston 601 moves towards the direction of the rotating shaft 501, the volume in the air supply cavity 609 is increased, the first one-way valve 604 is opened, the second one-way valve 605 is closed, the air inlet pipe 606 starts to be filled with air and fills the air supply cavity 609, when the piston 601 moves towards the direction of the rotating shaft 501, the volume in the air supply cavity 609 is reduced, the piston 601 pushes air in the air supply cavity 609 into the air supply pipe 603, at the moment, the second one-way valve 605 is opened, the first one-way valve 604 is closed, the air is conveyed to the cleaning spray head 602 through the air supply pipe 603 and sprayed out by the cleaning spray head 602, and air spraying cleaning is carried out on the ground bearing surface, so that surface impurities and fragments are removed, and the cleanliness and the surface quality of the bearing are improved.
The cleaning component in this scheme has utilized the power supply of pivot 501 to realize clean function, need not extra power device, has realized the effective utilization of resource, has reached energy-concerving and environment-protective effect.
Meanwhile, conventional contact cleaning may require the use of various special cleaning tools, and these tools may need to be replaced periodically during use due to wear, increasing production costs. The non-contact jet cleaning only needs to utilize the air flow generated by the cleaning component, and does not need an additional contact cleaning tool, so that the replacement cost of the cleaning tool is reduced.
In the description of the present application, it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not intended to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus the terms describing the positional relationship in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those skilled in the art according to specific circumstances.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.