CN110900324A - Cylindrical workpiece surface grinding equipment - Google Patents
Cylindrical workpiece surface grinding equipment Download PDFInfo
- Publication number
- CN110900324A CN110900324A CN201911328602.9A CN201911328602A CN110900324A CN 110900324 A CN110900324 A CN 110900324A CN 201911328602 A CN201911328602 A CN 201911328602A CN 110900324 A CN110900324 A CN 110900324A
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- CN
- China
- Prior art keywords
- cylindrical workpiece
- fixedly connected
- belt wheel
- gear
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
- B24B5/045—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally with the grinding wheel axis perpendicular to the workpiece axis
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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
- B24B27/003—Other grinding machines or devices using a tool turning around the work-piece
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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
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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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
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
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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
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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
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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
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses cylindrical workpiece surface grinding equipment which comprises a rack, wherein a groove with an upward opening is formed in the rack, a round table is rotationally arranged in the groove, the upper end of the round table is rotationally connected with a supporting table, a cylindrical workpiece is placed at the upper end of the supporting table, a grinding assembly is arranged in the round table, and the upper end of the grinding assembly is abutted against the circumferential surface of the cylindrical workpiece through eight fan-shaped grinding wheels.
Description
Technical Field
The invention relates to the field of surface grinding, in particular to cylindrical workpiece surface grinding equipment.
Background
Grinding is a mechanical processing method for removing materials, and is a processing method for cutting off redundant materials on a workpiece by using an abrasive material, a grinding tool and the like, wherein the common grinding tool is a grinding wheel.
The cylindrical workpiece generally uses a circumferential surface as a working surface, so that the requirement on the accuracy of the roundness of the cross section of the cylindrical workpiece is high, in the prior art, the circumferential surface is ground to remove redundant materials such as burrs and the like on the circumferential surface, and the accuracy of the roundness of the cross section of the workpiece cannot be improved well.
Disclosure of Invention
In order to solve the problems, the cylindrical workpiece surface grinding equipment comprises a rack, wherein a groove with an upward opening is formed in the rack, a round table is rotatably arranged in the groove, a supporting table is rotatably connected to the upper end of the round table, a cylindrical workpiece is placed at the upper end of the supporting table, a grinding assembly is arranged in the round table, the upper end of the grinding assembly is abutted against the circumferential surface of the cylindrical workpiece through eight fan-shaped grinding wheels, the eight fan-shaped grinding wheels can synchronously rotate and grind the circumferential surface of the cylindrical workpiece, the fan-shaped grinding wheels are in fan shapes in order to avoid collision between two adjacent fan-shaped grinding wheels during rotation, the fan-shaped angle of each fan-shaped grinding wheel is slightly smaller than one hundred and eighty degrees in order to avoid an unground area on the circumferential surface of the cylindrical workpiece, a power assembly is arranged in the frame, a connecting shaft is fixedly connected to the lower end of the round platform, the lower end of the connecting shaft is connected to the power assembly, a transmission shaft is connected between the grinding assembly and the power assembly, the power assembly drives the transmission shaft to further drive the eight fan-shaped grinding wheels in the grinding assembly to rotate and grind the circumferential surface of the cylindrical workpiece, meanwhile, the power assembly drives the connecting shaft to further drive the round platform to rotate so as to further drive the grinding assembly to rotate around the cylindrical workpiece, further complete circumferential grinding is performed on the circumferential surface of the cylindrical workpiece through the eight fan-shaped grinding wheels, a positioning assembly is arranged on the upper side of the cylindrical workpiece, a threaded hole with an upward opening is arranged in a lifting block in the positioning assembly, a lifting screw rod is connected with the threaded hole in a threaded manner, and the upper end, four sliding rods are distributed in the outer ring-shaped array of the lifting block, one end of each sliding rod, which is close to the cylindrical workpiece, is fixedly connected with a pressure sensor, the pressure sensors are abutted against the circumferential surface of the cylindrical workpiece, and monitors the pressure between the pressure sensor and the cylindrical workpiece, a connecting hole with an opening facing the lifting block is arranged in the sliding rod, a feeding screw rod is connected in the connecting hole in a threaded manner, one end of the feeding screw rod, which is close to the lifting block, is connected to the positioning assembly, the power assembly drives the lifting screw rod to drive the lifting block to slide, thereby driving the positioning assembly and driving the sliding rod to slide close to the cylindrical workpiece through the feed screw rod, when the pressure between the four pressure sensors and the cylindrical workpiece is the same, the lower end of a tip in the positioning assembly just abuts against the center of the cylindrical workpiece. Beneficially, power component includes that the symmetry of going up the line locates belt groove in the frame, the motor has set firmly between the belt groove, belt inslot internal rotation is equipped with driving pulley, driving pulley is close to motor one end has linked firmly the power shaft, power shaft power connect in the motor, driving pulley left side rotation is equipped with driven pulley, driven pulley with be connected with the deceleration strip between the driving pulley, driving pulley with for speed reduction between the driven pulley, the lifting screw upper end links firmly in the driven pulley of upside, the connecting axle lower extreme links firmly in the driven pulley of downside, the downside be equipped with the interior meshing groove that the opening is down in the driven pulley, interior meshing groove internal rotation is equipped with drive gear, the drive shaft lower extreme link firmly in drive gear, the drive shaft with connecting axle, connecting axle, The downside rotate between the driven pulleys and be connected, drive gear and downside the meshing has inside gearing gear between the driven pulleys, starts the motor, and then through the upside the power shaft drives the upside the driving pulley rotates, and then through the upside the deceleration strip drives the upside the driven pulleys rotates, and then passes through the lifting screw drive locating component, the motor passes through the downside the power shaft drives the downside the driving pulley rotates, and then through the downside the deceleration strip drives the downside the driven pulleys rotates, and then passes through the connecting axle drives the round platform rotates, and the downside simultaneously the driven pulleys drives inside gearing gear rotates, and then drives drive gear rotates, and then passes through the transmission shaft drive grinding subassembly.
Beneficially, the positioning assembly comprises a cavity arranged in the lifting block, spring grooves are arranged in the inner wall of the upper side of the cavity in a communicated manner, the upper end of the tip extends into the spring grooves, a return spring is fixedly connected between the upper end of the tip and the inner wall of the upper side of the spring grooves, the lower end of the tip extends out of the lifting block, racks are arranged in the cavity in a sliding manner, the racks are fixedly connected to the tip, four connecting gears are arranged in the cavity in an annular array manner, the connecting gears are meshed with the racks, supporting shafts are fixedly connected in the connecting gears, driving bevel gears are fixedly connected to the four supporting shafts along the anticlockwise direction, driven bevel gears are meshed to the ends of the driving bevel gears, which are far away from the racks, four feeding screw rods are fixedly connected to the four driven bevel gears respectively, and drive the lifting block to slide downwards when the lifting screw rods, and then the lower end of the tip abuts against the cylindrical workpiece, at the moment, the lifting block continues to slide downwards, the tip slides upwards relative to the lifting block and compresses the reset spring, meanwhile, the tip drives the rack to slide upwards and drives the connecting gear to rotate, and then the support shaft drives the driving bevel gear to rotate, so as to drive the driven bevel gear to rotate, further drive the sliding rod to slide close to the cylindrical workpiece through the feed screw rod, until the pressures between the four pressure sensors and the cylindrical workpiece are the same, and at the moment, the lower end of the tip abuts against the circle center of the cylindrical workpiece.
Beneficially, the grinding assembly comprises a gear cavity arranged in the circular table, a middle bevel gear is rotatably arranged in the gear cavity, the upper end of the transmission shaft is fixedly connected with the middle bevel gear, symmetrical bevel gears are arranged at the left end and the right end of the middle bevel gear in a meshed manner, a spline shaft is fixedly connected to one end of each symmetrical bevel gear, which is far away from the middle bevel gear, guide chutes with upward openings are symmetrically arranged in the circular table from left to right, sliding plates are arranged in the guide chutes in a sliding manner, the upper ends of the sliding plates extend out of the grooves, the sliding plates are slidably connected with the spline shaft, electromagnetic springs are fixedly connected between one ends of the sliding plates, which are far away from the gear cavity, and the inner walls of the guide chutes, which are far away from the gear cavity, are electrically connected with, the spline shaft is in splined connection with the chain wheels at the lower side, a chain is connected among five chain wheels, one end, close to the cylindrical workpiece, of four chain wheels at the upper side is fixedly connected with a grinding wheel shaft, eight fan-shaped grinding wheels are respectively fixedly connected with eight grinding wheel shafts at one end, close to the cylindrical workpiece, when the pressure between the four pressure sensors and the cylindrical workpiece is the same, the electromagnetic spring is electrified, the sliding plate is further pushed to slide towards one side close to the gear cavity until the fan-shaped grinding wheels abut against the cylindrical workpiece, the transmission shaft drives the middle bevel gear to rotate when rotating, the symmetrical bevel gear is further driven to rotate, the chain wheels at the lower side are further driven to rotate by the spline shaft, and the four chain wheels at the upper side are further driven by the chain wheels, the fan-shaped grinding wheels are further driven to rotate by the grinding, meanwhile, the connecting shaft rotates and drives the circular truncated cone to rotate, so that the sliding plate is driven to rotate around the cylindrical workpiece, and the cylindrical workpiece is ground in the whole circle through the eight fan-shaped grinding wheels.
Beneficially, the driving pulley and the driven pulley are in deceleration transmission, so that the rotating speed of the circular truncated cone is low, the rotating speed of the fan-shaped grinding wheel rotating around the cylindrical workpiece is low, meanwhile, the lifting screw drives the lifting block to slide downwards at a low speed, collision between the tip and the cylindrical workpiece is avoided, the driven pulley, the inner gear and the transmission gear on the lower side are in acceleration transmission, so that the rotating speed of the transmission shaft is greater than that of the connecting shaft, and at the moment, the middle bevel gear and the symmetrical bevel gear can be in meshing transmission.
Advantageously, the tip is coaxial with the connecting shaft.
The invention has the beneficial effects that: the invention can automatically position the circle center of the cylindrical workpiece, enables the eight fan-shaped grinding wheels to rotate around the axis of the cylindrical workpiece and grind, ensures the roundness precision of the cross section of the workpiece, ensures the eight fan-shaped grinding wheels to synchronously rotate without mutual interference, can grind the whole circumferential surface of the workpiece, and further improves the grinding efficiency and the grinding degree.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of a cylindrical workpiece surface grinding apparatus according to the present invention;
FIG. 2 is an enlarged schematic view of "A" of FIG. 1;
FIG. 3 is an enlarged schematic view of "B" of FIG. 1;
FIG. 4 is an enlarged schematic view of "C" of FIG. 2;
FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 2;
FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 4;
FIG. 7 is a schematic view of the structure in the direction "F-F" of FIG. 4.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to cylindrical workpiece surface grinding equipment, which comprises a rack 15, wherein a groove 49 with an upward opening is arranged in the rack 15, a round table 44 is rotatably arranged in the groove 49, the upper end of the round table 44 is rotatably connected with a supporting table 45, a cylindrical workpiece 18 is placed at the upper end of the supporting table 45, a grinding assembly 101 is arranged in the round table 44, the upper end of the grinding assembly 101 is abutted against the circumferential surface of the cylindrical workpiece 18 through eight fan-shaped grinding wheels 54, the eight fan-shaped grinding wheels 54 can synchronously rotate and grind the circumferential surface of the cylindrical workpiece 18, in order to avoid collision between two adjacent fan-shaped grinding wheels 54 during rotation, the fan-shaped grinding wheels 54 are in a fan shape, in order to avoid an unground area on the circumferential surface of the cylindrical workpiece 18, the fan-shaped angle of the fan-shaped grinding wheels 54 is slightly smaller than one hundred eighty degrees, the lower end of the circular truncated cone 44 is fixedly connected with a connecting shaft 39, the lower end of the connecting shaft 39 is connected with the power assembly 100, a transmission shaft 37 is connected between the grinding assembly 101 and the power assembly 100, the power assembly 100 drives the transmission shaft 37 to further drive the eight fan-shaped grinding wheels 54 in the grinding assembly 101 to rotate and grind the circumferential surface of the cylindrical workpiece 18, meanwhile, the power assembly 100 drives the connecting shaft 39 to further drive the circular truncated cone 44 to rotate so as to further drive the grinding assembly 101 to rotate around the cylindrical workpiece 18, so that the circumferential surface of the cylindrical workpiece 18 is ground in a whole circle through the eight fan-shaped grinding wheels 54, a positioning assembly 102 is arranged on the upper side of the cylindrical workpiece 18, a threaded hole 26 with an upward opening is formed in the lifting block 24 in the positioning assembly 102, and a lifting screw 17 is connected with the threaded hole 26, the upper end of the lifting screw 17 is connected to the power assembly 100, four sliding rods 19 are distributed in an outer annular array of the lifting block 24, one end of each sliding rod 19, which is close to the cylindrical workpiece 18, is fixedly connected with a pressure sensor 53, the pressure sensors 53 are abutted to the circumferential surface of the cylindrical workpiece 18, pressure between the pressure sensors 53 and the cylindrical workpiece 18 is monitored, a connecting hole 20 with an opening facing the lifting block 24 is formed in each sliding rod 19, a feed screw 21 is connected to the connecting hole 20 through internal threads, one end, which is close to the lifting block 24, of each feed screw 21 is connected to the positioning assembly 102, the power assembly 100 drives the lifting screw 17 to drive the lifting block 24 to slide, and then drives the positioning assembly 102 to drive the sliding rods 19 to slide, which are close to the cylindrical workpiece 18, through the feed screw 21, when the pressure between the four pressure sensors 53 and the cylindrical workpiece 18 is the same, the lower end of the center 32 in the positioning assembly 102 just abuts against the center of the cylindrical workpiece 18.
According to the embodiment, the power assembly 100 is described in detail below, the power assembly 100 includes belt grooves 13 that are arranged in the rack 15 in an on-line symmetric manner, a motor 14 is fixedly arranged between the belt grooves 13, a driving pulley 12 is rotatably arranged in the belt grooves 13, one end of the driving pulley 12 close to the motor 14 is fixedly connected with a power shaft 16, the power shaft 16 is connected to the motor 14 in a power manner, a driven pulley 34 is rotatably arranged on the left side of the driving pulley 12, a speed reducing belt 11 is connected between the driven pulley 34 and the driving pulley 12, speed reduction transmission is performed between the driving pulley 12 and the driven pulley 34, the upper end of the lifting screw 17 is fixedly connected to the driven pulley 34 on the upper side, the lower end of the connecting shaft 39 is fixedly connected to the driven pulley 34 on the lower side, an inner engaging groove 36 with a downward opening is arranged in the driven pulley 34 on the lower, a transmission gear 38 is rotatably arranged in the inner meshing groove 36, the lower end of the transmission shaft 37 is fixedly connected to the transmission gear 38, the transmission shaft 37 is rotatably connected to the connecting shaft 39 and the lower driven pulley 34, an inner meshing gear 35 is meshed between the transmission gear 38 and the lower driven pulley 34, the motor 14 is started, the power shaft 16 on the upper side drives the driving pulley 12 on the upper side to rotate, the deceleration strip 11 on the upper side drives the driven pulley 34 on the upper side to rotate, the lifting screw 17 drives the positioning assembly 102, the power shaft 16 on the lower side drives the driving pulley 12 on the lower side to rotate, the deceleration strip 11 on the lower side drives the lower driven pulley 34 on the lower side to rotate, and the circular truncated cone 44 is driven to rotate by the connecting shaft 39, meanwhile, the driven pulley 34 on the lower side drives the ring gear 35 to rotate, and further drives the transmission gear 38 to rotate, so that the grinding assembly 101 is driven through the transmission shaft 37.
According to the embodiment, the positioning assembly 102 is described in detail below, the positioning assembly 102 includes a cavity 23 disposed in the lifting block 24, a spring groove 27 is disposed in the inner wall of the upper side of the cavity 23 in a communicating manner, the upper end of the tip 32 extends into the spring groove 27, a return spring 25 is fixedly connected between the upper end of the tip 32 and the inner wall of the upper side of the spring groove 27, the lower end of the tip 32 extends out of the lifting block 24, a rack 28 is slidably disposed in the cavity 23, the rack 28 is fixedly connected to the tip 32, four connecting gears 29 are disposed in the cavity 23 in an annular array, the connecting gears 29 are engaged with the rack 28, a support shaft 30 is fixedly connected in the connecting gear 29, a driving bevel gear 31 is fixedly connected to one end of the four support shafts 30 in the counterclockwise direction, a driven bevel gear 22 is engaged to one end of the driving bevel gear 31 away from the rack 28, one end of each of the four feed screw rods 21, which is close to the lifting block 24, is fixedly connected to the four driven bevel gears 22, the lifting screw rods 17 drive the lifting block 24 to slide downwards when rotating, and the lower end of the center 32 is abutted against the cylindrical workpiece 18, at this time, the lifting block 24 continues to slide downwards, the tip 32 slides upward relative to the elevator block 24 and compresses the return spring 25, at the same time, the tip 32 drives the rack 28 to slide upwards and drives the connecting gear 29 to rotate, thereby rotating the drive bevel gear 31 via the support shaft 30, and further rotating the driven bevel gear 22, and the feed screw 21 drives the sliding rod 19 to slide close to the cylindrical workpiece 18 until the pressure between the four pressure sensors 53 and the cylindrical workpiece 18 is the same, and at this time, the lower end of the center 32 is abutted against the center of the cylindrical workpiece 18.
According to the embodiment, the grinding assembly 101 is described in detail below, the grinding assembly 101 includes a gear cavity 43 disposed in the circular truncated cone 44, a middle bevel gear 40 is rotatably disposed in the gear cavity 43, the upper end of the transmission shaft 37 is fixedly connected to the middle bevel gear 40, symmetrical bevel gears 42 are disposed at left and right ends of the middle bevel gear 40 in a meshed manner, one ends of the symmetrical bevel gears 42 away from the middle bevel gear 40 are fixedly connected to a spline shaft 41, guide chutes 50 with upward openings are symmetrically disposed at left and right ends of the circular truncated cone 44, sliding plates 48 are slidably disposed in the guide chutes 50, upper ends of the sliding plates 48 extend out of the grooves 49, the sliding plates 48 are slidably connected to the spline shaft 41, and electromagnetic springs 51 are fixedly connected between one ends of the sliding plates 48 away from the gear cavity 43 and an inner wall of the guide chutes 50 away from the gear cavity, the electromagnetic spring 51 is electrically connected to the pressure sensor 53, a chain groove 46 is arranged in the sliding plate 48, five chain wheels 52 are rotatably arranged in the chain groove 46, the spline shaft 41 is in splined connection with the chain wheels 52 on the lower side, a chain 47 is connected between the five chain wheels 52, one end of the four chain wheels 52 on the upper side close to the cylindrical workpiece 18 is fixedly connected with a grinding wheel shaft 55, the eight fan-shaped grinding wheels 54 are respectively fixedly connected with the eight grinding wheel shafts 55 close to one end of the cylindrical workpiece 18, when the pressures between the four pressure sensors 53 and the cylindrical workpiece 18 are the same, the electromagnetic spring 51 is electrified, the sliding plate 48 is further pushed to slide towards one side close to the gear cavity 43 until the fan-shaped grinding wheels 54 abut against the cylindrical workpiece 18, and the transmission shaft 37 drives the middle bevel gear 40 to rotate when rotating, and further drives the symmetrical bevel gear 42, the spline shaft 41 drives the lower chain wheel 52 to rotate, the chain 47 drives the upper four chain wheels 52 to drive the fan-shaped grinding wheel 54 to rotate through the grinding wheel shaft 55 and grind the circumferential surface of the cylindrical workpiece 18, the connecting shaft 39 rotates and drives the circular truncated cone 44 to rotate, the sliding plate 48 is driven to rotate around the cylindrical workpiece 18, and the eight fan-shaped grinding wheels 54 grind the cylindrical workpiece 18 in a whole circle.
Advantageously, the speed reduction transmission is performed between the driving pulley 12 and the driven pulley 34, so that the rotation speed of the circular truncated cone 44 is slow, the rotation speed of the sector grinding wheel 54 rotating around the cylindrical workpiece 18 is slow, meanwhile, the speed of the lifting screw 17 driving the lifting block 24 to slide downwards is slow, collision between the top tip 32 and the cylindrical workpiece 18 is avoided, the acceleration transmission is performed among the driven pulley 34, the ring gear 35 and the transmission gear 38 on the lower side, so that the rotation speed of the transmission shaft 37 is greater than that of the connection shaft 39, and then the meshing transmission can be performed between the middle bevel gear 40 and the symmetrical bevel gear 42.
Advantageously, said tip 32 is coaxial with said connecting shaft 39.
The following describes in detail the use steps of a cylindrical workpiece surface grinding apparatus in the present document with reference to fig. 1 to 7:
initially, the lifting block 24 is in the upper limit position, the return spring 25 is in the normal state, the four slide rods 19 are far away from each other, the slide plate 48 is far away from the gear chamber 43, and the electromagnetic spring 51 is not energized.
When the device is used, a cylindrical workpiece 18 is placed on the supporting table 45, the motor 14 is started, the driving belt wheel 12 on the upper side is driven to rotate by the power shaft 16 on the upper side, the driven belt wheel 34 on the upper side is driven to rotate by the deceleration strip 11 on the upper side, the lifting block 24 is driven to descend by the lifting screw 17, when the lower end of the tip 32 abuts against the upper end of the cylindrical workpiece 18, the lifting block 24 continues to descend, the tip 32 slides upwards relative to the lifting block 24 and compresses the return spring 25, the rack 28 is driven to slide upwards and drive the connecting gear 29 to rotate, the driving bevel gear 31 is driven to rotate by the supporting shaft 30, the driven bevel gear 22 is driven to rotate, the sliding rod 19 is driven by the feed screw rod 21 to slide close to the lifting block 24, the pressure sensors 53 abut against the circumferential surface of the cylindrical workpiece 18 until the pressures between the four pressure, at this time, the motor 14 stops driving the upper power shaft 16, the electromagnetic spring 51 is energized and the sliding plate 48 is pushed to slide until the eight fan-shaped grinding wheels 54 abut on the circumferential surface of the cylindrical workpiece 18, the motor 14 drives the lower power shaft 16 to rotate the lower driving pulley 12, the lower driven pulley 34 is driven to rotate by the lower speed reduction belt 11, the ring gear 35 is driven to rotate, the transmission gear 38 is driven to rotate, the middle bevel gear 40 is driven to rotate by the transmission shaft 37, the symmetrical bevel gear 42 is driven to rotate, the lower chain wheel 52 is driven to rotate by the spline shaft 41, the upper four chain wheels 52 are driven to rotate by the chains 47, the fan-shaped grinding wheels 54 are driven to rotate by the grinding wheel shafts 55, the circumferential surface of the cylindrical workpiece 18 is ground, and the lower driven pulley 34 drives the circular table 44 to rotate by the connecting shaft, thereby driving the eight fan-shaped grinding wheels 54 to rotate around the cylindrical workpiece 18 and grinding the circumferential surface of the cylindrical workpiece 18 over the entire circumference.
During resetting, the motor 14 reversely drives the power shaft 16 on the upper side, the lifting block 24 is driven to ascend through the lifting screw 17, the tip 32 slides downwards relative to the lifting block 24 under the action of the elastic force of the return spring 25, the sliding rod 19 is driven to slide away from the lifting block 24 through transmission among the rack 28, the connecting gear 29, the supporting shaft 30, the driving bevel gear 31, the driven bevel gear 22 and the feed screw 21, the pressure sensor 53 is disengaged from the cylindrical workpiece 18, the electromagnetic spring 51 is powered off, the sliding plate 48 is driven to slide away from the cylindrical workpiece 18 under the action of the elastic force of the electromagnetic spring 51, the sector grinding wheel 54 is disengaged from the cylindrical workpiece 18, the lifting block 24 continues to slide upwards until the tip 32 is disengaged from the cylindrical workpiece 18, and the motor 14 is stopped and the cylindrical workpiece 18 is taken out.
The invention has the beneficial effects that: the invention can automatically position the circle center of the cylindrical workpiece, enables the eight fan-shaped grinding wheels to rotate around the axis of the cylindrical workpiece and grind, ensures the roundness precision of the cross section of the workpiece, ensures the eight fan-shaped grinding wheels to synchronously rotate without mutual interference, can grind the whole circumferential surface of the workpiece, and further improves the grinding efficiency and the grinding degree.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (6)
1. The utility model provides a cylindrical workpiece surface grinding equipment, includes the frame, its characterized in that: a groove with an upward opening is formed in the rack, a round table is rotationally arranged in the groove, a supporting table is rotationally connected to the upper end of the round table, and a cylindrical workpiece is placed at the upper end of the supporting table; a grinding assembly is arranged in the circular table, the upper end of the grinding assembly is abutted against the circumferential surface of the cylindrical workpiece through eight fan-shaped grinding wheels, a power assembly is arranged in the rack, the lower end of the circular table is fixedly connected with a connecting shaft, the lower end of the connecting shaft is connected with the power assembly, and a transmission shaft is connected between the grinding assembly and the power assembly; a positioning assembly is arranged on the upper side of the cylindrical workpiece, a threaded hole with an upward opening is formed in a lifting block in the positioning assembly, a lifting screw is connected with the threaded hole in a threaded manner, the upper end of the lifting screw is connected to the power assembly, four sliding rods are distributed in an outer annular array of the lifting block, one end, close to the cylindrical workpiece, of each sliding rod is fixedly connected with a pressure sensor, and the pressure sensor is abutted against the circumferential surface of the cylindrical workpiece; a connecting hole with an opening facing the lifting block is formed in the sliding rod, a feeding screw rod is connected to the inner thread of the connecting hole, and one end, close to the lifting block, of the feeding screw rod is connected to the positioning assembly; the four pressure sensors have the same pressure with the cylindrical workpiece, and the lower end of a tip in the positioning assembly just abuts against the center of the cylindrical workpiece.
2. The cylindrical workpiece surface grinding apparatus as defined in claim 1, wherein: the power assembly comprises belt grooves which are arranged in the rack in an on-line symmetrical manner, a motor is fixedly arranged between the belt grooves, a driving belt wheel is rotatably arranged in the belt grooves, one end of the driving belt wheel, which is close to the motor, is fixedly connected with a power shaft, and the power shaft is in power connection with the motor; a driven belt wheel is rotatably arranged on the left side of the driving belt wheel, a speed reducing belt is connected between the driven belt wheel and the driving belt wheel, speed reduction transmission is performed between the driving belt wheel and the driven belt wheel, the upper end of the lifting screw is fixedly connected with the driven belt wheel on the upper side, and the lower end of the connecting shaft is fixedly connected with the driven belt wheel on the lower side; an inner meshing groove with a downward opening is formed in the driven belt wheel on the lower side, a transmission gear is rotationally arranged in the inner meshing groove, the lower end of the transmission shaft is fixedly connected with the transmission gear, the transmission shaft is rotationally connected with the connecting shaft and the driven belt wheel on the lower side, and an inner meshing gear is meshed between the transmission gear and the driven belt wheel on the lower side.
3. The cylindrical workpiece surface grinding apparatus as defined in claim 1, wherein: the positioning assembly comprises a cavity arranged in the lifting block, a spring groove is formed in the inner wall of the upper side of the cavity in a communicated manner, the upper end of the tip extends into the spring groove, and a reset spring is fixedly connected between the upper end of the tip and the inner wall of the upper side of the spring groove; the cavity is internally provided with a rack in a sliding manner, the rack is fixedly connected with the tip, four connecting gears are arranged in the cavity in an annular array manner, the connecting gears are meshed with the rack, supporting shafts are fixedly connected into the connecting gears, four supporting shafts are fixedly connected with driving bevel gears along one end in the anticlockwise direction, the driving bevel gears are far away from one ends of the racks, engaged with driven bevel gears, and one ends of the four feeding screw rods, which are close to the lifting block, are fixedly connected with the four driven bevel gears respectively.
4. The cylindrical workpiece surface grinding apparatus as defined in claim 1, wherein: the grinding assembly comprises a gear cavity arranged in the circular truncated cone, a middle bevel gear is rotatably arranged in the gear cavity, the upper end of the transmission shaft is fixedly connected with the middle bevel gear, the left end and the right end of the middle bevel gear are meshed with each other and provided with symmetrical bevel gears, and spline shafts are fixedly connected to the ends of the symmetrical bevel gears, which are far away from the middle bevel gears; guide chutes with upward openings are symmetrically arranged in the circular truncated cone at the left and right sides, sliding plates are arranged in the guide chutes in a sliding mode, the upper ends of the sliding plates extend out of the grooves, the sliding plates are connected with the spline shafts in a sliding mode, electromagnetic springs are fixedly connected between one end, away from the gear cavity, of each sliding plate and the inner wall, away from the gear cavity, of each guide chute, and the electromagnetic springs are electrically connected to the pressure sensor; the fan-shaped grinding wheel assembly is characterized in that a chain groove is formed in the sliding plate, five chain wheels are rotatably arranged in the chain groove, the spline shaft is connected to the chain wheels on the lower side in a splined mode, chains are connected among the five chain wheels, four chain wheels on the upper side are close to one end, close to the cylindrical workpiece, of each chain wheel, grinding wheel shafts are fixedly connected, and eight fan-shaped grinding wheels are fixedly connected to the eight grinding wheel shafts respectively and close to one end.
5. The cylindrical workpiece surface grinding apparatus as set forth in claim 2, wherein: the speed reduction transmission is carried out between the driving belt wheel and the driven belt wheel, and the acceleration transmission is carried out among the driven belt wheel, the internal gear and the transmission gear on the lower side.
6. The cylindrical workpiece surface grinding apparatus as defined in claim 1, wherein: the tip is coaxial with the connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328602.9A CN110900324A (en) | 2019-12-20 | 2019-12-20 | Cylindrical workpiece surface grinding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328602.9A CN110900324A (en) | 2019-12-20 | 2019-12-20 | Cylindrical workpiece surface grinding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110900324A true CN110900324A (en) | 2020-03-24 |
Family
ID=69826860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911328602.9A Withdrawn CN110900324A (en) | 2019-12-20 | 2019-12-20 | Cylindrical workpiece surface grinding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110900324A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404466A (en) * | 2020-11-24 | 2021-02-26 | 绍兴欣业机械有限公司 | Chamfering device for arc-shaped bevel gear shaft |
| CN112676947A (en) * | 2020-12-28 | 2021-04-20 | 王兆举 | Automatic workpiece shaft butt-joint positioning mechanism for intelligent plane refiner |
| CN115302328A (en) * | 2022-08-24 | 2022-11-08 | 熊美倡 | Internal and external cylindrical grinding machine tool |
| CN115533633A (en) * | 2022-09-13 | 2022-12-30 | 华能临沂发电有限公司 | Surfacing and polishing device for sealing surface of valve |
-
2019
- 2019-12-20 CN CN201911328602.9A patent/CN110900324A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404466A (en) * | 2020-11-24 | 2021-02-26 | 绍兴欣业机械有限公司 | Chamfering device for arc-shaped bevel gear shaft |
| CN112676947A (en) * | 2020-12-28 | 2021-04-20 | 王兆举 | Automatic workpiece shaft butt-joint positioning mechanism for intelligent plane refiner |
| CN115302328A (en) * | 2022-08-24 | 2022-11-08 | 熊美倡 | Internal and external cylindrical grinding machine tool |
| CN115533633A (en) * | 2022-09-13 | 2022-12-30 | 华能临沂发电有限公司 | Surfacing and polishing device for sealing surface of valve |
| CN115533633B (en) * | 2022-09-13 | 2023-09-05 | 华能临沂发电有限公司 | Surfacing and polishing device for sealing surface of valve |
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Application publication date: 20200324 |
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