CN110434715A - A kind of equipment for grinding of full-automatic conical bearing roller ball basal plane - Google Patents
A kind of equipment for grinding of full-automatic conical bearing roller ball basal plane Download PDFInfo
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- CN110434715A CN110434715A CN201910842254.0A CN201910842254A CN110434715A CN 110434715 A CN110434715 A CN 110434715A CN 201910842254 A CN201910842254 A CN 201910842254A CN 110434715 A CN110434715 A CN 110434715A
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- 230000007246 mechanism Effects 0.000 claims abstract description 122
- 238000007599 discharging Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 230000007723 transport mechanism Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000003754 machining Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003746 surface roughness Effects 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
- B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
- B24B11/02—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls
- B24B11/04—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls involving grinding wheels
- B24B11/10—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls involving grinding wheels of cup type
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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
- B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
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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
- B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
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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
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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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
- B24B55/06—Dust extraction equipment on grinding or polishing machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a kind of equipment for grinding of full-automatic conical bearing roller ball basal plane, including rotating disk mechanism, feeding mechanism, turntable locking mechanism, processing unit (plant) and discharging mechanism.Rotating disk mechanism includes the round turntable being vertically arranged and the turntable driving motor connecting with the centre bore of turntable；Six roller mounting holes are opened up on turntable in uniform way and six stations are set in uniform way, is i.e. feed station, locking station, station to be processed, processing stations, station to be discharged and discharging station.Feeding mechanism includes box for feeding odd and transport mechanism；Turntable locking mechanism includes a lock cylinder and clamping block.Processing unit (plant) includes positioning sleeve driving mechanism and grinding mechanism；The installation of positioning sleeve driving head includes positioning sleeve driving motor and transmission tapered sleeve；Grinding mechanism includes emery wheel motor and grinding wheel.Discharging mechanism includes material ejection cylinder, tapping channel and blanking box.Equipment for grinding of the invention not only increases processing efficiency and quality, while significantly reducing labor intensity.
Description
Technical Field
The invention relates to full-automatic grinding equipment for a ball base surface of a conical bearing roller.
Background
The roller spherical base surface refers to the end surface of the conical roller spherical base surface, and the shape and the precision of the end surface can affect the contact state and the lubrication state of the roller end surface of the bearing and the large flange of the inner ring and the service life of the bearing. The processing of the spherical base surface of the tapered roller is an indispensable process in the process of processing the tapered roller. At present, because of the influence of a plurality of factors such as processing equipment, tool preparation, grinding wheels, operating skills and the like, the radius meeting the requirements of a customer drawing can be processed in the base surface processing process, and the radius dispersion is ensured, the processing problem is still one, and the ball base surface processing equipment used at present at home has the following problems:
1. the tapered roller is driven to rotate in a plane mode of the turntable, and the workpiece is positioned easily to swing axially, radially and horizontally on the plane of the turntable;
2. the shaft center of the grinding wheel and the shaft center of the workpiece are difficult to be in the same horizontal plane, mutually vertical and intersect at the center of the workpiece;
3. in a single sleeve type grinding mode, feeding, grinding, blanking and the like are all completed at the same station, so that the processing efficiency is low;
4. due to the repeated operation of the die at high frequency, the positioning center and the machining center of the workpiece are easy to wear and cause deviation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides full-automatic grinding equipment for a spherical base surface of a conical bearing roller, which not only improves the processing efficiency and quality, but also greatly lightens the labor intensity and can realize one person for multi-machine operation.
The purpose of the invention is realized as follows: a full-automatic grinding device for the spherical base surface of a conical bearing roller comprises a turntable mechanism, a feeding mechanism, a turntable locking mechanism, a processing device and a discharging mechanism, wherein,
the turntable mechanism comprises a vertically arranged circular turntable and a turntable driving motor connected with a central hole of the turntable; six roller mounting holes are uniformly formed in a positioning circle concentric with the rotary table and close to the edge of the surface of the rotary table, and six stations, namely a feeding station, a locking station, a station to be processed, a processing station, a station to be discharged and a discharging station, are uniformly arranged along the positioning circle; a limiting groove communicated with the roller mounting hole is radially formed on the same vertical surface of the outer peripheral surface of the turntable corresponding to each roller mounting hole; a roller positioning sleeve is arranged in each roller mounting hole through a bearing; the turntable driving motor is a servo motor;
the feeding mechanism comprises a feeding box and a conveying mechanism; the feeding box is arranged above the front part of the rotary disc through a feeding box bottom plate and a feeding box support; the conveying mechanism comprises two conveying guide rollers, a roller shifting wheel and a flexible feeding pipe; the two conveying guide rollers are parallel in a mode that the distance is smaller than the diameter of the large end of the roller, and are obliquely arranged on the bottom plate of the feeding box in a mode that the feeding end is high and the discharging end is low; the roller shifting wheel is arranged above the middle parts of the two conveying guide rollers; the feeding port of the flexible feeding pipe is connected with the discharging ends of the two conveying guide rollers, and the discharging port of the flexible feeding pipe is arranged on the front side of the rotary table in a mode of aligning with the feeding station on the conveying mechanism;
the turntable locking mechanism comprises a locking cylinder and a locking block; the locking cylinder is arranged on a cylinder bracket; the shape of the locking block is matched with the limiting groove on the rotary table, and the locking block is vertically aligned with the locking station on the conveying mechanism and is connected with the end of the piston rod of the locking cylinder in a mode of being positioned on the same vertical face with the limiting groove on the rotary table;
the processing device comprises a positioning sleeve driving mechanism and a grinding processing mechanism; the positioning sleeve driving head comprises a positioning sleeve driving motor and a transmission taper sleeve; the positioning sleeve driving motor is arranged on the headstock feeding mechanism positioned at the rear side of the turntable in a mode that a rotating shaft of the positioning sleeve driving motor is aligned with the processing station on the conveying mechanism; the transmission taper sleeve is arranged on a rotating shaft of the positioning sleeve driving motor through a transmission shaft, and the transmission taper sleeve can be clamped on the roller positioning sleeve through the forward movement of the headstock feeding mechanism; the grinding mechanism comprises a grinding wheel driving motor and a grinding wheel; the grinding wheel driving motor is arranged on the grinding head feeding mechanism positioned on the front side of the turntable in a mode that a rotating shaft of the grinding wheel driving motor is aligned with a processing station on the conveying mechanism; the grinding wheel is a cylindrical grinding wheel and is arranged on a rotating shaft of the grinding wheel driving motor;
the discharging mechanism comprises a material ejecting cylinder, a discharging channel and a blanking box; the material ejecting cylinder is arranged on the rear side of the rotary table in a mode that a piston rod of the material ejecting cylinder is aligned with a material discharging station on the conveying mechanism; the discharging channel is obliquely arranged below the rotary disc; the blanking box is arranged at the lower end of the discharging channel.
In the full-automatic grinding equipment for the ball base surface of the conical bearing roller, two circles of positioning protrusions are arranged on the inner hole surface of the front part of each roller positioning sleeve, and the outer surface of the rear part of each roller positioning sleeve is a conical surface matched with the inner surface of the transmission conical sleeve and protrudes out of the rear surface of the turntable.
The grinding equipment for the ball base surface of the full-automatic conical bearing roller is characterized in that the guide roller driving mechanism in the feeding mechanism comprises a guide roller driving motor connected to one end of one conveying guide roller and two transmission gears which are correspondingly arranged at the other ends of the two conveying guide rollers one by one and are meshed and connected; the two conveying guide rollers are obliquely arranged through inclination angle adjusting screws arranged on the feeding box support.
The grinding equipment for the ball base surface of the full-automatic conical bearing roller is characterized in that the feeding mechanism further comprises a feeding box and a stopping mechanism; a feeding hole is formed in one side face of the feeding box, a feeding gate is installed on the feeding hole, and the feeding box is connected to the feeding hole of the feeding box; the stopping mechanism comprises a stopping cylinder arranged at the discharge end of the flexible feeding pipe and a stopping block connected to a piston rod of the stopping cylinder and capable of being inserted into a jack radially formed in the discharge end of the flexible feeding pipe.
In the full-automatic grinding equipment for the ball base surface of the conical bearing roller, a guide hole is further formed in the cylinder support of the turntable locking mechanism, so that the piston rod of the locking cylinder drives the locking block to enter and exit the limiting groove in the turntable along the guide hole.
The grinding equipment for the spherical base surface of the full-automatic conical bearing roller comprises a grinding head feeding mechanism, a grinding head feeding mechanism and a grinding head feeding mechanism, wherein the grinding head feeding mechanism and the grinding head feeding mechanism respectively comprise a feeding driving motor, a ball screw connected to a rotating shaft of the feeding driving motor and a sliding plate arranged on the screw.
The technical scheme of the full-automatic grinding equipment for the ball base surface of the conical bearing roller has the following characteristics:
1. the problems that the conventional grinding machine drives the tapered roller to rotate in a turntable plane mode, axial and radial swinging is easy to occur when a workpiece is positioned, and the shaft center of the grinding wheel and the shaft center of the workpiece are difficult to be correctly positioned on the same horizontal plane, mutually perpendicular and intersected at the center of the workpiece are solved.
2. The automatic feeding, automatic processing and automatic discharging are adopted, and the feeding, the processing and the discharging are all clamped and positioned by the roller positioning sleeve, so that the technical requirement and the quality requirement of grinding of the spherical base surface of the tapered roller are met, the problem that the processing efficiency is low due to the fact that a single sleeve type grinding mode is adopted, namely the feeding, the grinding, the discharging and the like are all completed at one station is solved, and the precision error caused by the deviation of the positioning center and the processing center of a workpiece due to the fact that the mold is operated repeatedly at high frequency is avoided.
3. The method has certain requirements on the range of the dispersion of the outer diameter of the roller, and the dispersion is generally controlled to be less than or equal to 0.01mm, so that the method is suitable for grinding the ball base surface of the final grinding of the roller, the dispersion of the radius SR 400-600 of the ball base surface of the roller can be controlled to be less than or equal to 3mm, the contact precision of the ball base surface of the roller and the flange of the bearing inner ring is improved, and the friction coefficient is reduced. The ground surface is a crossed arc line, so that the lubricating condition of the bearing is improved.
4. Not only improves the processing efficiency and quality, but also greatly lightens the labor intensity and can realize one person and multiple machines operation. The equipment ensures the processing surface quality of the ball base surface of the roller, and is suitable for processing the ball base surface of the roller of various high-speed bearings such as rail transit bearings, high-speed rails and the like.
Drawings
FIG. 1 is a front view of the full automatic grinding apparatus for a spherical base surface of a conical bearing roller of the present invention;
FIG. 2 is a side view of the full automatic grinding apparatus for a spherical base surface of a conical bearing roller of the present invention;
fig. 3 is an enlarged view of a portion P in the grinding apparatus of the present invention;
FIG. 4 is a schematic structural view of a feed mechanism in the grinding apparatus of the present invention;
fig. 5 is a schematic structural view of a turntable lock mechanism in the grinding apparatus of the present invention;
fig. 6 is a schematic structural view of a machining device in the grinding apparatus of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1 to 6, the full-automatic grinding equipment for the spherical base surface of the conical bearing roller of the present invention includes a turntable mechanism, a feeding mechanism, a turntable locking mechanism 3, a processing device, a discharging mechanism, an error-proofing mechanism, an elastic pressure head 6 and a waste discharging mechanism.
The turntable mechanism comprises a circular turntable 10 vertically arranged through the base 1 and a turntable driving mechanism connected with a central hole of the turntable 10; wherein,
the turntable driving mechanism comprises a turntable driving motor 11, a synchronous belt transmission mechanism 12 connected with the turntable driving motor 11 and a gear reduction mechanism 13 connected with the synchronous belt transmission mechanism 12, the turntable driving motor 11 is a servo motor, and a central hole of the turntable 10 is connected with an output shaft of the gear reduction mechanism 13; six roller mounting holes are uniformly formed in a positioning circle 100 concentric with the rotary table 10 and close to the edge of the surface of the rotary table 10, and six stations, namely a feeding station 101, a locking station 102, a station to be processed 103, a processing station 104, a station to be discharged 105 and a discharging station 106 are uniformly arranged along the positioning circle 100; a roller positioning sleeve 14 is arranged in each roller mounting hole through a bearing 143, and the front end and the rear end of the bearing 143 are provided with retaining rings 144 and 145 and a dust cover 146; a limiting groove 15 communicated with the roller mounting holes is radially formed on the outer peripheral surface of the rotary table 10 on the same vertical surface corresponding to each roller mounting hole;
two circles of positioning protrusions 141 and 142 are arranged on the inner hole surface of the front part of each roller positioning sleeve 14, and the outer surface of the rear part of each roller positioning sleeve 14 is a conical surface and protrudes out of the rear surface of the turntable 10.
The feeding mechanism comprises a feeding box 21, a feeding box 22, a conveying mechanism and a stopping mechanism; wherein,
the feeding box 20 is arranged on a feeding box support 20, a feeding hole is formed in one side face of the feeding box 21, and a feeding gate 210 is arranged on the feeding hole;
the feeding box 22 is arranged on a feeding box bottom plate 23, the feeding box bottom plate 23 is arranged on a feeding box support 24, and the feeding box 22 is positioned in front of and above the turntable 10;
the conveying mechanism comprises two conveying guide rollers 25, a roller thumb wheel 26 and a flexible feeding pipe 27; the two conveying guide rollers 25 are respectively arranged on the bottom plate 23 of the feeding box in parallel in a mode that the distance between the two conveying guide rollers is smaller than the diameter of the large end of the roller 6 through a pair of bearing seats, the two conveying guide rollers 25 are obliquely arranged in a mode that the feeding end is high and the discharging end is low through inclination angle adjusting screws 240 arranged on the feeding box support 24, the feeding ends of the two conveying guide rollers 25 are inserted into the feeding box 22, and the two conveying guide rollers 25 reversely rotate through a guide roller driving mechanism; the guide roller driving mechanism comprises a guide roller driving motor 250 connected with one end of one conveying guide roller 25 through a coupler 251 and two transmission gears 252 which are correspondingly arranged at the other ends of the two conveying guide rollers 25 one by one and are meshed and connected, and the discharge holes of the two conveying guide rollers 25 are provided with baffles 253; the roller thumb wheel 26 is arranged above the middle parts of the two conveying guide rollers 25; the inlet of the flexible feeding pipe 27 is connected with the outlet ends of the two conveying guide rollers 25, the outlet of the flexible feeding pipe 27 is arranged at the front side of the turntable 10 in a mode of aligning with the feeding station 101 on the conveying mechanism, and the conveying mechanism can convey the roller 7 to be machined into the inner hole of the roller positioning sleeve 14 in a mode of backward small end;
the stopping mechanism comprises a stopping cylinder 28 mounted at the discharge end of the flexible feeding tube 27 and a stopping block 29 connected to the piston rod of the stopping cylinder 28 and capable of being inserted into a radially-arranged receptacle at the discharge end of the flexible feeding tube 27.
The turntable locking mechanism 3 comprises a cylinder bracket 30, a locking cylinder 31, a locking block 32 and a guide mechanism, wherein the cylinder bracket 20 is of an inverted F-shaped structure, and the locking cylinder 21 is arranged in the middle of the bottom surface of a middle transverse plate of the cylinder bracket 20; the shape of the locking block 32 is matched with the limiting groove 15 on the rotary table 10, and the locking block 32 is connected with the end of the piston rod of the locking cylinder 31 in a mode of being vertically aligned with the locking station 102 on the conveying mechanism and being positioned on the same vertical surface with the limiting groove 15 on the rotary table 10; the guide mechanism comprises two guide holes which are arranged on a cantilever of the locking block 32 and on a top transverse plate and a middle transverse plate of the cylinder bracket 20 and are symmetrically positioned at two sides of a piston rod through hole of the locking cylinder 21 and two guide rods 33 which are correspondingly arranged in the two guide holes one by one, so that the piston rod of the locking cylinder 31 drives the locking block 32 to enter and exit the limiting groove 15 on the rotary disc 10 along the guide rods 33.
The processing device comprises a positioning sleeve driving mechanism and a grinding processing mechanism; wherein,
the positioning sleeve driving head comprises a positioning sleeve driving motor 40 and a transmission taper sleeve 44; the positioning sleeve driving motor 40 is arranged on a headstock feeding sliding plate 41 positioned at the rear side of the turntable 10 in a mode that the rotating shaft of the positioning sleeve driving motor is aligned with the processing station 104 on the conveying mechanism, and the headstock feeding sliding plate 41 is arranged on a headstock ball screw 42 driven by a headstock feeding driving motor 43; the transmission taper sleeve 44 is arranged on a rotating shaft of the positioning sleeve driving motor 40 through a transmission shaft, and the transmission taper sleeve 44 can be clamped at the rear part of the roller positioning sleeve 14 through the forward movement of the headstock feeding sliding plate 41; in order to increase the friction force between the transmission taper sleeve 44 and the roller positioning sleeve 14, a rubber gasket 440 is additionally arranged on the inner cavity surface of the transmission taper sleeve 44;
the grinding mechanism comprises a grinding wheel driving motor 45 and a grinding wheel 49; a grinding wheel drive motor 45 is mounted on a grinding head feed slide plate 46 located on the front side of the turntable 10 in such a manner that the rotary shaft thereof is aligned with the machining station 104 on the conveying mechanism, the grinding head feed slide plate 46 being mounted on a grinding head ball screw 48 driven by a grinding head feed drive motor 47; the grinding wheel 49 is a cylindrical grinding wheel and is mounted on the rotating shaft of the grinding wheel drive motor 45, and the grinding wheel 49 can grind the large end face of the roller 7 mounted in the roller retainer 14 by the forward movement of the wheel head feed slide 41.
The discharging mechanism comprises a material ejecting cylinder 50, a discharging channel 51 and a blanking box 52; wherein,
the material ejecting cylinder 50 is arranged at the rear side of the turntable 10 in a mode that a piston rod of the material ejecting cylinder is aligned with the material discharging station 106 on the conveying mechanism;
the discharging channel 51 is obliquely arranged below the rotary table 10;
a drop box 52 is provided at the lower end of the discharge channel 51.
A mistake proofing mechanism (not shown) using a limit switch is installed on the front side of the turntable 10 in alignment with the station 103 to be processed on the turntable mechanism.
The elastic pressure head 6 is arranged on the front side of the turntable 10 and is positioned between the locking station 102 and the station 103 to be processed, and the elastic pressure head 6 is hung on a bracket 62 in an inverted L shape through a spring 61.
A waste discharge mechanism (not shown) is mounted on the front side of the turntable 10 in alignment with the outfeed station 106 on the turntable mechanism; the waste discharge mechanism can adopt a blowing mechanism.
When the full-automatic grinding equipment for the ball base surface of the conical bearing roller works, the turntable driving motor 11 adopts a servo motor and drives the turntable 10 to rotate at a high-precision angle, so that the aim of converting the roller 7 at six stations with high efficiency is fulfilled.
The roller 7 to be processed is placed in a feeding box 21 of a feeding mechanism, a feeding gate 210 of the feeding box 21 is opened, the roller 7 can be sent into a feeding box 22, and then is sent into two conveying guide rollers 25 from the feeding box 22, because the two conveying guide rollers 25 are obliquely arranged, the roller 7 can move forwards on the two conveying guide rollers 25 due to self weight and can be clamped by the two conveying guide rollers 25 in a mode that the small end faces downwards through stirring of a roller dial wheel 26 until the roller enters a flexible feeding pipe 27, the roller always comes to a discharging port in a mode that the small end faces downwards, and because six stations are arranged on a turntable mechanism, the number of steps of rotating a circle counterclockwise by a turntable driving motor 11 is set to be six steps, the rotating angle is 60 degrees, and the rotating interval time is 3.5S-4.5S; when a roller mounting hole on the turntable 10 just rotates to the feeding station 101, the roller 7 at the lowest end in the flexible feeding pipe 27 falls into the roller positioning sleeve 14 of the roller mounting hole, and the axial and radial limiting of the roller is completed by two circles of positioning bulges 141 and 142 in the inner hole of the roller positioning sleeve 14; therefore, under normal conditions, the front part of the roller 7 is positioned in the roller positioning sleeve 14, and only a small part of the large end of the roller 7 protrudes out of the front surface of the turntable 10, if the front part of the roller 7 is not positioned in the roller positioning sleeve 14, the roller 7 can be pressed into the roller positioning sleeve 14 through the elastic pressure head 6 during the rotation process of the turntable 10; when the roller positioning sleeve 14 with the roller 7 rotates to the station 104 to be processed, if the specification of the roller 7 is not the processing specification set by the processing device, the error-proofing mechanism is touched, the rotating disc 10 stops rotating, so as to prevent the device and the tool from being damaged by the roller 7 with the specification out of specification, after the roller 7 is removed, the rotating disc 10 continues to rotate by 60 degrees, at this time, the subsequent roller 7 reaches the processing station 104, the transmission taper sleeve 44 is close to the roller positioning sleeve 14 and clamped at the rear part of the roller positioning sleeve 14 under the action of the headstock feeding driving motor 43, the headstock ball screw 42 and the headstock feeding sliding plate 41, the positioning sleeve driving motor 40 drives the transmission taper sleeve 44 to drive the roller positioning sleeve 14 to rotate through friction force, and meanwhile, the grinding wheel 29 is close to the large end face of the roller 7 under the action of the grinding head feeding driving motor 47, the grinding head ball screw 48 and the grinding head feeding sliding plate 46 and rotates under the driving of the, the end face of the grinding wheel 49 is made tangent to the large end spherical base face of the roller 7, and grinding is performed by generating method by the rotation of the grinding wheel 29 and the roller 7 toward each other. During grinding, the center of the grinding wheel 29 and the center of the roller 7 are perpendicular to each other on the same horizontal plane and intersect at the center of the roller 7, so that the grinding wheel can automatically and continuously work, the requirements of SR curvature and surface roughness of the base surface of the roller 7 are met, the SR discreteness is small, and the efficiency is high. During the machining process of the machining device, a roller mounting hole on the rotary table 10 is just rotated to the rotary table locking station 102, and at this time, a piston rod of a locking cylinder 31 of the rotary table locking mechanism retracts, so that a locking block 32 is inserted into a limiting groove 15 communicated with the roller mounting hole, and the angle of the rotary table 10 is locked, thereby preventing the roller 7 from slightly deviating from the positioning angle of the roller 7 being machined due to the factors such as stress and slight vibration of the rotary table 10 during the machining process, and possibly causing a large error in the machining precision of the spherical base surface of the roller 7. After the machining is finished, the headstock feeding sliding plate 41 and the grinding head feeding sliding plate 46 are withdrawn simultaneously, the roller positioning sleeve 14 with the machined roller 7 is rotated to the material waiting station 105 to wait for 3.5-4.5S through the rotation of the turntable 10, and then the roller positioning sleeve is rotated to the material discharging station 106, at the moment, the piston rod of the material ejecting cylinder 50 extends out to eject the machined roller 7 out of the roller positioning sleeve 14 and fall onto the material discharging channel 51, and meanwhile, the waste discharging mechanism is aligned with the inner hole of the roller positioning sleeve 14 to blow out dust and other waste particles possibly falling in the roller positioning sleeve 14, so that the influence of the waste particles on the positioning of the roller 7 is avoided. The circulation is carried out, the feeding mechanism continuously feeds materials to the turntable mechanism, the turntable mechanism continuously rotates, and the processes of feeding, processing, blanking, waste discharging and the like are automatically and repeatedly carried out.
In addition, when the machine tool is reset, the turntable 10 may be at a non-origin position, and at this time, the machine tool of the turntable 10 automatically rotates when the machine tool is reset, and at this time, if the discharge port of the flexible feed pipe 27 has a large end face where the roller 7 protrudes and collides with the roller 7 in the six roller mounting holes of the turntable 10, the reset of the turntable 10 is affected, so that the piston rod of the stop cylinder 28 of the feed mechanism extends to insert the stop block 29 into a jack radially formed on the discharge end of the flexible feed pipe 27, so as to stop the roller 7, and the roller 7 is not allowed to protrude out of the discharge port of the flexible feed pipe.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (6)
1. A full-automatic grinding device for the spherical base surface of a conical bearing roller comprises a turntable mechanism, a feeding mechanism, a turntable locking mechanism, a processing device and a discharging mechanism, and is characterized in that,
the turntable mechanism comprises a vertically arranged circular turntable and a turntable driving motor connected with a central hole of the turntable; six roller mounting holes are uniformly formed in a positioning circle concentric with the rotary table and close to the edge of the surface of the rotary table, and six stations, namely a feeding station, a locking station, a station to be processed, a processing station, a station to be discharged and a discharging station, are uniformly arranged along the positioning circle; a limiting groove communicated with the roller mounting hole is radially formed on the same vertical surface of the outer peripheral surface of the turntable corresponding to each roller mounting hole; a roller positioning sleeve is arranged in each roller mounting hole through a bearing; the turntable driving motor is a servo motor;
the feeding mechanism comprises a feeding box and a conveying mechanism; the feeding box is arranged above the front part of the rotary disc through a feeding box bottom plate and a feeding box support; the conveying mechanism comprises two conveying guide rollers, a roller shifting wheel and a flexible feeding pipe; the two conveying guide rollers are parallel in a mode that the distance is smaller than the diameter of the large end of the roller, and are obliquely arranged on the bottom plate of the feeding box in a mode that the feeding end is high and the discharging end is low; the roller shifting wheel is arranged above the middle parts of the two conveying guide rollers; the feeding port of the flexible feeding pipe is connected with the discharging ends of the two conveying guide rollers, and the discharging port of the flexible feeding pipe is arranged on the front side of the rotary table in a mode of aligning with the feeding station on the conveying mechanism;
the turntable locking mechanism comprises a locking cylinder and a locking block; the locking cylinder is arranged on a cylinder bracket; the shape of the locking block is matched with the limiting groove on the rotary table, and the locking block is vertically aligned with the locking station on the conveying mechanism and is connected with the end of the piston rod of the locking cylinder in a mode of being positioned on the same vertical face with the limiting groove on the rotary table;
the processing device comprises a positioning sleeve driving mechanism and a grinding processing mechanism; the positioning sleeve driving head comprises a positioning sleeve driving motor and a transmission taper sleeve; the positioning sleeve driving motor is arranged on the headstock feeding mechanism positioned at the rear side of the turntable in a mode that a rotating shaft of the positioning sleeve driving motor is aligned with the processing station on the conveying mechanism; the transmission taper sleeve is arranged on a rotating shaft of the positioning sleeve driving motor through a transmission shaft, and the transmission taper sleeve can be clamped on the roller positioning sleeve through the forward movement of the headstock feeding mechanism; the grinding mechanism comprises a grinding wheel driving motor and a grinding wheel; the grinding wheel driving motor is arranged on the grinding head feeding mechanism positioned on the front side of the turntable in a mode that a rotating shaft of the grinding wheel driving motor is aligned with a processing station on the conveying mechanism; the grinding wheel is a cylindrical grinding wheel and is arranged on a rotating shaft of the grinding wheel driving motor;
the discharging mechanism comprises a material ejecting cylinder, a discharging channel and a blanking box; the material ejecting cylinder is arranged on the rear side of the rotary table in a mode that a piston rod of the material ejecting cylinder is aligned with a material discharging station on the conveying mechanism; the discharging channel is obliquely arranged below the rotary disc; the blanking box is arranged at the lower end of the discharging channel.
2. The full-automatic grinding equipment for the ball base surface of the conical bearing roller as claimed in claim 1, wherein two rings of positioning protrusions are arranged on the front inner hole surface of each roller positioning sleeve, and the outer surface of the rear part of each roller positioning sleeve is a conical surface matched with the inner surface of the transmission conical sleeve and protrudes out of the rear surface of the turntable.
3. The full-automatic grinding equipment for the ball base surface of the conical bearing roller as claimed in claim 1, wherein the guide roller driving mechanism in the feeding mechanism comprises a guide roller driving motor connected to one end of a conveying guide roller and two transmission gears which are correspondingly arranged at the other ends of the two conveying guide rollers one by one and are meshed with each other; the two conveying guide rollers are obliquely arranged through inclination angle adjusting screws arranged on the feeding box support.
4. The full-automatic grinding equipment for the ball base surface of the conical bearing roller as claimed in claim 1 or 3, wherein the feeding mechanism further comprises a feeding box and a stopping mechanism; a feeding hole is formed in one side face of the feeding box, a feeding gate is installed on the feeding hole, and the feeding box is connected to the feeding hole of the feeding box; the stopping mechanism comprises a stopping cylinder arranged at the discharge end of the flexible feeding pipe and a stopping block connected to a piston rod of the stopping cylinder and capable of being inserted into a jack radially formed in the discharge end of the flexible feeding pipe.
5. The full-automatic grinding equipment for the ball base surface of the conical bearing roller as claimed in claim 1, wherein a guide hole is further formed in a cylinder support of the turntable locking mechanism, so that a piston rod of the locking cylinder drives the locking block to enter and exit the limiting groove in the turntable along the guide hole.
6. The full-automatic grinding device for the spherical basal plane of the conical bearing roller as claimed in claim 1, wherein the headstock feeding mechanism and the grinding head feeding mechanism each comprise a feed driving motor, a ball screw connected to a rotating shaft of the feed driving motor, and a slide plate mounted on the screw.
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| CN201910842254.0A CN110434715B (en) | 2019-09-06 | 2019-09-06 | Full-automatic grinding equipment for spherical base surface of tapered bearing roller |
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| CN201910842254.0A CN110434715B (en) | 2019-09-06 | 2019-09-06 | Full-automatic grinding equipment for spherical base surface of tapered bearing roller |
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| CN110434715A true CN110434715A (en) | 2019-11-12 |
| CN110434715B CN110434715B (en) | 2024-07-09 |
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| CN112975652A (en) * | 2021-02-23 | 2021-06-18 | 杭州职业技术学院 | Ceramic ball grinding and polishing device based on curved surface machining |
| CN114161272A (en) * | 2021-12-20 | 2022-03-11 | 王晓明 | Composite grinding machine for simultaneously grinding outer diameter and spherical base surface of tapered roller |
| CN117260021A (en) * | 2023-11-20 | 2023-12-22 | 沈阳机车车辆装备制造有限公司 | Auxiliary supporting device for laser cutting |
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| CN110434715B (en) | 2024-07-09 |
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