CN110605634A - Special numerical control automatic super-precision grinding machine for spherical roller and outer spherical surface - Google Patents

Special numerical control automatic super-precision grinding machine for spherical roller and outer spherical surface Download PDF

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Publication number
CN110605634A
CN110605634A CN201910766117.3A CN201910766117A CN110605634A CN 110605634 A CN110605634 A CN 110605634A CN 201910766117 A CN201910766117 A CN 201910766117A CN 110605634 A CN110605634 A CN 110605634A
Authority
CN
China
Prior art keywords
carriage
headstock
unit
roller
fixed
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.)
Withdrawn
Application number
CN201910766117.3A
Other languages
Chinese (zh)
Inventor
燕珊珊
燕敬宇
燕芳贞
田民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linqing Haibin Bearing Manufacturing Co Ltd
Original Assignee
Linqing Haibin Bearing Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Linqing Haibin Bearing Manufacturing Co Ltd filed Critical Linqing Haibin Bearing Manufacturing Co Ltd
Priority to CN201910766117.3A priority Critical patent/CN110605634A/en
Publication of CN110605634A publication Critical patent/CN110605634A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B11/00Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
    • B24B11/02Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls
    • B24B11/04Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor for grinding balls involving grinding wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/005Feeding or manipulating devices specially adapted to grinding machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/02Frames; Beds; Carriages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • B24B41/067Work supports, e.g. adjustable steadies radially supporting workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/22Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels

Abstract

A special numerical control automatic superfinishing grinder for an outer spherical surface of a spherical roller comprises a base, a headstock, an electromagnetic chuck, a feeding unit, a knockout unit and a spindle unit, wherein the headstock is slidably mounted at the left end of the base, and a headstock supporting plate unit for driving the headstock is arranged between the base and the headstock; a rotating shaft is rotatably arranged on the headstock, and an electromagnetic chuck is fixed at the tail end of the rotating shaft; the feeding unit is arranged on the headstock and used for conveying the rollers to the grinding area one by one; the material beating unit comprises a material beating rod which is arranged in the inner cavity of the rotating shaft in a sliding mode; the large carriage unit is used for driving the main shaft unit to transversely move; the small carriage unit is used for driving the main shaft unit to move longitudinally; the spindle unit comprises an electric spindle, and a grinding wheel is fixed on the electric spindle. The grinding machine can realize automatic feeding and discharging of the roller, has high processing precision and can be suitable for grinding the outer spherical surface of the high-efficiency spherical roller with spherical surfaces of various sizes.

Description

Special numerical control automatic super-precision grinding machine for spherical roller and outer spherical surface
Technical Field
The invention relates to the technical field of grinding of an outer spherical surface of a spherical roller, in particular to a special numerical control automatic superfinishing grinder for the outer spherical surface of the spherical roller.
Background
The spherical roller is a key part for a new generation of bearing and is mainly used for a self-aligning roller bearing with large bearing load. The generatrix contour of the spherical roller is arc-shaped, the measurement difficulty is high during processing, the size precision dispersion is large, and the running precision and the service life of the bearing are directly influenced by the quality of the roller. The improvement of the dimensional accuracy and the reduction of the dimensional dispersion and the surface roughness of the roller are always the key points of the development of the roller processing technology. With the increasing demand of self-aligning roller bearings, the requirements on the quality of the bearings are also strengthened, the demand of adopting high-grade rollers is increasing day by day, the demands of I-grade rollers and II-grade rollers are vigorous, and the improvement on roller processing equipment and process technology is urgent. Meanwhile, with the increase of bearing varieties, the adaptability requirement on equipment processing is gradually improved. The existing grinding processing equipment has the defects of low automation rate, unreasonable machine tool structure, poor adaptability to roller varieties, low processing efficiency, rough surface, large size dispersion difference and low processing precision.
At present, the bearing roller is processed in a multi-step and multi-equipment processing mode in the processing process, the processing efficiency is low, and the personnel carrying and transferring are needed, so that the production cost is improved.
Disclosure of Invention
The invention aims to provide a special numerical control automatic superfinishing grinding machine for an outer spherical surface of a spherical roller, which is used for grinding the outer spherical surface of the roller and has automatic feeding and discharging functions.
The technical scheme adopted by the invention for solving the technical problems is as follows: automatic superfine grinding machine of special numerical control of spherical roller ectosphere, characterized by, it includes:
a base that is a base support member;
the bedside box is arranged at the left end of the base in a sliding mode, and a bedside supporting plate unit for driving the bedside box to move along the longitudinal direction is arranged between the base and the bedside box;
the electromagnetic chuck is rotatably provided with a rotating shaft on the headstock, the first end of the rotating shaft is driven to rotate by a workpiece shaft motor positioned on the headstock, the electromagnetic chuck is fixed at the second end of the rotating shaft, and the electromagnetic chuck can suck and release the roller after the power is turned on or off;
the feeding unit is arranged on the headstock and used for conveying the rollers to a grinding area one by one;
the knockout unit comprises a knockout rod which is arranged in the inner cavity of the rotating shaft in a sliding manner, and a knockout driving mechanism for driving the knockout rod to translate is arranged on the headstock;
the large carriage unit comprises a large carriage arranged at the right end of the base in a sliding manner and a carriage driving mechanism for driving the large carriage to move along the transverse direction;
the small carriage unit comprises a small carriage arranged on the large carriage in a sliding manner and a carriage driving mechanism for driving the small carriage to move along the longitudinal direction;
the spindle unit is fixed on the small carriage and comprises an electric spindle, and a grinding wheel is fixed on the electric spindle.
Further, the bed head supporting plate unit comprises a bed head supporting plate fixed on the base, a driving motor fixed on the bed head supporting plate, a lead screw fixed at the output end of the driving motor, and a lead screw nut matched with the lead screw, and the bed head box is arranged on the bed head supporting plate in a sliding mode and is fixedly connected with the lead screw nut.
Furthermore, the feeding unit comprises a crescent plate, a discharging channel, a feeding spring plate and a feeding movable plate, the crescent plate is arranged below the electromagnetic chuck, two supporting seats are arranged on the crescent plate in a sliding mode along the arc direction, a locking structure is arranged between the supporting seats and the crescent plate, a first support is fixed on one of the supporting seats, and a second support is fixed on the other supporting seat; the discharging channel is obliquely arranged, the lower end of the discharging channel is positioned above the electromagnetic chuck, and a roller is placed in the discharging channel; the upper end of the feeding spring plate is fixedly connected with the headstock, the lower end of the feeding spring plate is suspended, and the extension line of the discharging channel is intersected with the feeding spring plate; the feeding movable plate is arranged on the left side of the feeding spring plate and the upper side of the lower end of the discharging channel, the feeding driving mechanism for driving the feeding movable plate to reciprocate up and down is arranged on the headstock, the third support and the small spring plate are arranged on the lower portion of the feeding movable plate, when the small spring plate moves down, the roller is separated from the discharging channel, and when the small spring plate moves down to the lowest point, a grinding area is defined by the first support, the second support and the third support.
Furthermore, the knockout driving mechanism is a knockout cylinder which is fixed on the headstock, and a piston rod of the knockout cylinder is hinged with the knockout rod.
Further, the carriage driving mechanism comprises a carriage motor, a lead screw fixed at the output end of the carriage motor and a lead screw nut matched with the lead screw, and when the carriage motor is fixed on the base, the lead screw nut is fixedly connected with the large carriage; when the carriage motor is fixed on the large carriage, the screw nut is fixedly connected with the small carriage.
Furthermore, the grinding wheel dressing unit comprises a support arranged on the base, a dressing motor fixed on the support and a dressing roller fixed at the output end of the dressing motor.
Further, still include ejection of compact recovery unit, ejection of compact recovery unit is including fixing on the headstock and the play material way that the slope set up, setting on the headstock and be located the charging basket of ejection of compact way lower extreme, and the roller that is pushed down by the knockout pin falls on a material way to roll to the charging basket in along the ejection of compact way.
The invention has the beneficial effects that: the invention provides a special numerical control automatic superfinishing grinder for an outer spherical surface of a spherical roller, and provides high-efficiency grinding equipment for the outer spherical surface of the spherical roller, which has high processing precision and can adapt to spherical surfaces of various size sections; by adopting a full-automatic working mode, the roller can automatically complete the feeding, grinding and discharging of the roller, and the service performance of the equipment is improved. The grinding machine can be used by a single machine, can also be used in an automatic production line for grinding and processing the tapered roller, is suitable for mass production and use, and the precision of a processed product can stably reach the standard of a II-level roller.
Drawings
FIG. 1 is a top view of the present invention (with the feed unit removed);
FIG. 2 is a schematic view of a feed unit;
FIG. 3 is a schematic view of a wheel truing unit;
FIG. 4 is a top view of the discharge chute;
FIG. 5 is a schematic view of a head pallet unit;
in the figure: 1 workpiece shaft motor, 2 belt transmission mechanism, 3 rotating shaft, 4 material beating cylinder, 5 material beating rod, 6 headstock, 7 headstock supporting plate unit, 71 headstock supporting plate, 72 guide rail, 73 driving motor, 74 lead screw, 75 lead screw nut, 8 electromagnetic chuck, 9 grinding wheel, 10 grinding wheel correcting unit, 11 small carriage unit, 111 small carriage, 12 spindle unit, 121 electric spindle, 13 large carriage unit, 131 large carriage, 14 base, 15 first support, 16 second support, 17 roller, 18 material discharge channel, 181 fixed plate, 182 movable plate, 183 notch, 19 material feeding movable plate, 20 material feeding slide block, 21 material feeding cylinder, 22 third support, 23 spring plate seat, 24 material feeding spring plate, 25 small spring plate, 26 crescent plate, 27, 28 material discharge channel of supporting seat, and 29 material basket.
Detailed Description
As shown in fig. 1 to 5, the present invention mainly includes a base 14, a workpiece shaft motor 1, a knockout unit, a feeding unit, a discharge recovery unit, a large carriage unit 13, a small carriage unit 11, a grinding wheel dressing unit 10, a spindle unit 12, a headstock 6, and a headstock carriage unit 7, and the present invention will be described in detail below with reference to the accompanying drawings.
Base 14:
the base 1 is used as a supporting part to play a main supporting role for the whole grinding machine, a workpiece shaft motor 1, a material beating unit, a feeding unit, a discharging recovery unit, a large carriage unit 13, a small carriage unit 11, a grinding wheel correction unit 10, a main shaft unit 12, a headstock 6 and a headstock support plate unit 7 are arranged on the base, the grinding machine is provided with a water system, an electric system and an air system, a position sensor, a pressure sensor and an angle sensor are arranged on the grinding machine, accessories such as an electric cabinet and the like matched with the grinding machine are additionally arranged and are connected with a control system through cables.
The head box 6:
as shown in fig. 1, the headstock 6 is arranged at the left end of the base, a headstock supporting plate unit 7 is arranged between the headstock and the base, the headstock supporting plate unit comprises a headstock supporting plate 71, a driving motor 73, a guide rail 72, a lead screw 74 and a lead screw nut 75, the headstock supporting plate 71 is fixed on the base, the guide rail 72 is fixed on the headstock supporting plate, and the headstock is connected with the guide rail in a sliding manner, so that the headstock can slide along the longitudinal direction; a driving motor 73 is fixedly arranged on the bed head supporting plate, a lead screw 74 is fixed at the output end of the driving motor, the lead screw is in threaded fit with a lead screw nut, and the lead screw nut is fixedly connected with the bed head box. When the driving motor acts, the screw rod can be driven to rotate, the screw rod nut is driven to move, and the headstock is driven to longitudinally move relative to the headstock supporting plate.
Workpiece shaft motor 1:
the workpiece shaft motor 1 is fixed on a headstock, a hollow rotating shaft 3 is rotatably arranged on the headstock through a bearing, a belt transmission mechanism 2 is arranged between the rotating shaft and the output end of the workpiece shaft motor, and the rotating shaft is driven to rotate through the belt transmission mechanism. The belt transmission mechanism comprises a driving belt wheel, a driven belt wheel and a belt, wherein the driving belt wheel is fixed at the output end of the workpiece shaft motor, the driven belt wheel is fixedly connected with the first end of the rotating shaft, and the belt is arranged between the driving belt wheel and the driven belt wheel.
Electromagnetic chuck 8:
as shown in fig. 1, the electromagnetic chuck is fixed at the second end of the rotating shaft, and the power on and off of the electromagnetic chuck are controlled by controlling the on and off of the power supply, so that the roller is sucked and loosened, and the end surface of the electromagnetic chuck is contacted and sucked with the end surface of the spherical roller.
A material beating unit:
the knockout cylinder 4 is fixed on the headstock, and the piston rod of knockout cylinder is articulated to be installed knockout pole 5, and the right-hand member of knockout pole stretches into in the inner chamber of pivot and both sliding connection. When the piston rod of the knockout cylinder extends out, the reciprocating movement of the knockout rod in the rotating shaft can be driven, and the knockout rod penetrates through the electromagnetic chuck to be in contact with the roller and pushes the roller away from the electromagnetic chuck. The knockout cylinder constitutes a knockout driving mechanism for driving the knockout rod to translate on the inner side of the rotating shaft, and the knockout cylinder and the knockout rod constitute a knockout unit.
The right end of the base is provided with a small carriage unit 11, a main shaft unit 12 and a large carriage unit 13.
A large carriage unit 13:
the large carriage unit 8 comprises a large carriage 131 arranged at the right end of the base in a sliding manner, a carriage motor fixed on the base, a lead screw rotatably mounted on the base and fixedly connected with the output end of the carriage motor, and a lead screw nut matched with the lead screw and fixedly connected with the large carriage, a guide rail is arranged on the base, the large carriage is arranged on the guide rail in a sliding manner, and the large carriage moves along the transverse direction relative to the base. The carriage motor, the lead screw and the lead screw nut form a carriage driving mechanism for driving the large carriage to slide relative to the base. The structure and the working principle of the carriage driving mechanism are similar to those of the bed head supporting plate unit, and are not repeated herein.
A small carriage unit 11:
the small carriage unit 11 comprises a small carriage 111 arranged on the large carriage in a sliding manner, a carriage motor fixed on the large carriage, a lead screw rotatably arranged on the large carriage and fixedly connected with the output end of the carriage motor, and a lead screw nut matched with the lead screw and fixedly connected with the small carriage, wherein a guide rail is arranged on the large carriage, the small carriage is arranged on the guide rail in a sliding manner, and the small carriage moves along the longitudinal direction relative to the large carriage. The carriage motor, the lead screw and the lead screw nut form a carriage driving mechanism for driving the large carriage to slide relative to the base. The structure and the working principle of the carriage driving mechanism are similar to those of the bed head supporting plate unit, and are not repeated herein.
The spindle unit 12:
a main shaft unit 12 is fixed on the small carriage, the main shaft unit mainly comprises a main shaft box fixed on the small carriage and an electric main shaft 121 rotatably installed in the main shaft box, a grinding wheel 9 is fixed on the electric main shaft, and the grinding wheel is used for grinding the roller.
The wheel truing unit 10:
the base is provided with a grinding wheel truing unit 10 for maintaining the shape of the grinding wheel. As shown in fig. 3, the grinding wheel dressing unit includes a bracket 102 disposed on the base, a dressing motor 101 fixed on the bracket, and a dressing roller 103 fixed on an output end of the dressing motor, wherein the position of the bracket is adjusted so that the dressing roller is close to the grinding wheel, and the dressing roller is used to dress the grinding wheel.
The roller is arranged in a grinding area so as to facilitate the grinding treatment of the roller by a grinding wheel. The feeding unit is arranged on the headstock.
A feeding unit:
as shown in fig. 2, the feeding unit includes a first support 15, a second support 16, a discharging channel 18, a feeding moving plate 19, a feeding slide block 20, a feeding cylinder 21, a third support 22, a spring plate seat 23, a feeding spring plate 24, a small spring plate 25, a crescent 26 and a supporting seat 27. The first support 15 and the second support 16 are both fixed on a supporting seat 27, the supporting seat 27 is arranged on the crescent plate 26 in a sliding mode, a bolt is arranged between the crescent plate and the supporting seat, and the position of the supporting seat on the crescent plate is convenient to debug due to the connection mode between the supporting seat and the crescent plate; after the position of the supporting seat is debugged, the supporting seat and the crescent plate are locked, and the crescent plate is fixedly installed on the headstock. The end faces of the action ends of the first support and the second support are respectively provided with a conical surface which is used for contacting with the outer wall of the roller 17, and the crescent plate is arranged below the electromagnetic chuck.
The material discharging channel 18 is obliquely arranged above the electromagnetic chuck and is fixed on the headstock, as shown in fig. 4, the material discharging channel 18 is composed of a fixed plate 181 and a movable plate 182, the fixed plate 181 is of an L-shaped structure, the movable plate is slidably arranged on the fixed plate, the movable plate can translate relative to the fixed plate to adapt to rollers with different heights, and a roller sequencing space is defined between the movable plate and the fixed plate. The rollers are sequenced in a determined mode in the discharging channel and roll from high to low by means of self weight. A gap 183 is formed between the lower end of the fixed plate and the lower end of the movable plate, the roller falls after penetrating through the gap, and the gap plays a role in avoiding the feeding movable plate and the small spring plate. The gap is positioned above the electromagnetic chuck, and the rollers to be processed are conveyed into the discharging channel 18 through a manual or lifting system to sequence the rollers. The right side of the discharge channel is provided with a spring plate seat 23 which is fixed on the headstock through bolts. A vertically arranged feeding spring plate 24 is fixed at the left end of the spring plate seat, and the extension line of the discharging channel penetrates through the feeding spring plate.
A feeding cylinder 21 fixedly connected with the headstock is arranged above the electromagnetic chuck, a feeding sliding block 20 is hinged on a piston rod of the feeding cylinder, a feeding movable plate 19 is fixedly arranged on the feeding sliding block through a bolt, the feeding sliding block is vertically and slidably arranged on the headstock, and the feeding movable plate is driven to vertically move under the action of the feeding cylinder. The feeding cylinder and the feeding slide block form a feeding driving mechanism for driving the feeding movable plate to reciprocate up and down. The bottom of the feeding movable plate is provided with a third support 22, the acting end of the third support is provided with a circular arc-shaped outer wall, and the third support is in point contact or line contact with the outer wall of the roller. And a small spring plate 25 is further fixed at the lower part of the feeding movable plate, and when the feeding movable plate moves downwards, the small spring plate is in contact with the roller and extrudes the roller, so that the roller extrudes the feeding spring plate, and the lower end of the feeding spring plate 24 expands outwards to deform so as to avoid the downward movement of the roller. The first support, the second support and the third support enclose a grinding area, when the roller is placed in the discharging channel and rolls to the lower end of the discharging channel from top to bottom, the roller is in contact with the feeding spring plate, so that the roller is prevented from falling down by itself, and the roller is in a waiting state and enters the grinding area after the feeding movable plate pushes the roller away from the discharging channel. The first support, the second support, the third support and the electromagnetic chuck cooperate to clamp and fix the roller.
A discharge recovery unit:
as shown in fig. 2, the discharging and recycling unit includes a discharging channel 28 fixed on the headstock and disposed obliquely, and a basket 29 disposed on the headstock and located at the lower end of the discharging channel, wherein the roller pushed down by the material beating rod falls on the discharging channel, and falls in the basket after rolling along the discharging channel.
The following describes a grinding process of the spherical roller outer spherical surface:
(1) the roller is placed into the discharging channel through a manual or lifting mechanism, and then rolls from top to bottom under the action of self weight until the roller rolls to the lower end of the discharging channel and contacts with the feeding spring plate;
(2) the feeding cylinder acts to push the feeding sliding block to move from top to bottom, and at the moment, the feeding movable plate gradually approaches to the roller at the lower end of the discharge channel from top to bottom;
(3) the small spring plate on the feeding movable plate is contacted with the roller to push the roller to move from top to bottom, and the roller presses the feeding spring plate to expand (expansion: the feeding spring plate is bent and the lower end of the feeding spring plate moves to the right);
(4) when the roller is separated from the discharge channel, the roller falls on the first support, and the right outer wall of the roller is in contact with the second support; then the electromagnetic chuck is electrified to generate magnetism and attracts the rear end face of the roller, and the third bearing is gradually contacted with the outer wall of the upper side of the roller along with the further downward movement of the feeding movable plate, so that the roller is supported, clamped and fixed through the matching action of the first bearing, the second bearing, the third bearing and the electromagnetic chuck, the roller is positioned in the circumferential direction in a three-point positioning mode, and the roller is positioned along the axial direction of the roller after the electromagnetic chuck and the roller are adsorbed together;
(5) then the large carriage unit and the small carriage unit act to enable a grinding wheel on the electric spindle to be close to the roller, and simultaneously the electric spindle acts to enable the grinding wheel to rotate so as to grind the outer spherical surface of the roller;
(6) after the grinding operation is finished, the feeding cylinder is reset, the grinding wheel is quickly reset under the action of the large carriage unit and the small carriage unit, and the electromagnetic chuck loses power and demagnetizes; the knockout cylinder acts to enable the knockout rod to penetrate through the inner cavity of the rotating shaft and the electromagnetic chuck and then push the roller to separate from the grinding area; the pushed roller falls on the discharging channel and then rolls along the discharging channel into the charging basket;
(7) after the material beating operation is finished, the material beating cylinder acts to drive the material beating rod to reset, and the operation is a working cycle;
(8) the shape of the grinding wheel deforms along with continuous use and loss; and in order to ensure the appearance of the grinding wheel, the grinding wheel appearance is subjected to grinding correction through a grinding wheel correction unit.

Claims (7)

1. Automatic superfine grinding machine of special numerical control of spherical roller ectosphere, characterized by, it includes:
a base that is a base support member;
the bedside box is arranged at the left end of the base in a sliding mode, and a bedside supporting plate unit for driving the bedside box to move along the longitudinal direction is arranged between the base and the bedside box;
the electromagnetic chuck is rotatably provided with a rotating shaft on the headstock, the first end of the rotating shaft is driven to rotate by a workpiece shaft motor positioned on the headstock, the electromagnetic chuck is fixed at the second end of the rotating shaft, and the electromagnetic chuck can suck and release the roller after the power is turned on or off;
the feeding unit is arranged on the headstock and used for conveying the rollers to a grinding area one by one;
the knockout unit comprises a knockout rod which is arranged in the inner cavity of the rotating shaft in a sliding manner, and a knockout driving mechanism for driving the knockout rod to translate is arranged on the headstock;
the large carriage unit comprises a large carriage arranged at the right end of the base in a sliding manner and a carriage driving mechanism for driving the large carriage to move along the transverse direction;
the small carriage unit comprises a small carriage arranged on the large carriage in a sliding manner and a carriage driving mechanism for driving the small carriage to move along the longitudinal direction;
the spindle unit is fixed on the small carriage and comprises an electric spindle, and a grinding wheel is fixed on the electric spindle.
2. The numerical control automatic superfinishing grinder special for the spherical roller and the spherical outside surface according to claim 1, wherein the bed head supporting plate unit comprises a bed head supporting plate fixed on the base, a driving motor fixed on the bed head supporting plate, a lead screw fixed at the output end of the driving motor, and a lead screw nut matched with the lead screw, and the bed head box is slidably arranged on the bed head supporting plate and fixedly connected with the lead screw nut.
3. The numerical control automatic superfinishing grinder special for the spherical roller outer spherical surface according to claim 1, wherein the feeding unit comprises a crescent moon plate, a discharging channel, a feeding spring plate and a feeding movable plate, the crescent moon plate is arranged below the electromagnetic chuck, two supporting seats are slidably mounted on the crescent moon plate along an arc direction, a locking structure is arranged between the supporting seats and the crescent moon plate, a first support is fixed on one of the supporting seats, and a second support is fixed on the other supporting seat; the discharging channel is obliquely arranged, the lower end of the discharging channel is positioned above the electromagnetic chuck, and a roller is placed in the discharging channel; the upper end of the feeding spring plate is fixedly connected with the headstock, the lower end of the feeding spring plate is suspended, and the extension line of the discharging channel is intersected with the feeding spring plate; the feeding movable plate is arranged on the left side of the feeding spring plate and the upper side of the lower end of the discharging channel, the feeding driving mechanism for driving the feeding movable plate to reciprocate up and down is arranged on the headstock, the third support and the small spring plate are arranged on the lower portion of the feeding movable plate, when the small spring plate moves down, the roller is separated from the discharging channel, and when the small spring plate moves down to the lowest point, a grinding area is defined by the first support, the second support and the third support.
4. The numerical control automatic superfinishing grinder special for the spherical roller and the spherical outer surface according to claim 1, wherein the knockout driving mechanism is a knockout cylinder, the knockout cylinder is fixed on a headstock, and a piston rod of the knockout cylinder is hinged with a knockout rod.
5. The numerical control automatic superfinishing grinder special for the spherical roller outer spherical surface according to claim 1, wherein the carriage driving mechanism comprises a carriage motor, a lead screw fixed at an output end of the carriage motor, and a lead screw nut matched with the lead screw, and when the carriage motor is fixed on the base, the lead screw nut is fixedly connected with the large carriage; when the carriage motor is fixed on the large carriage, the screw nut is fixedly connected with the small carriage.
6. The numerical control automatic superfinishing grinder special for spherical rollers and spherical surfaces according to claim 1, further comprising a grinding wheel dressing unit, wherein the grinding wheel dressing unit comprises a bracket arranged on the base, a dressing motor fixed on the bracket, and a dressing roller fixed at an output end of the dressing motor.
7. The numerical control automatic superfinishing grinder special for spherical rollers and spherical outer surfaces according to claim 1, further comprising a discharge recovery unit, wherein the discharge recovery unit comprises a discharge channel which is fixed on the headstock and is obliquely arranged, and a basket which is arranged on the headstock and is located at the lower end of the discharge channel, and the rollers pushed down by the knockout pin fall on the discharge channel and roll into the basket along the discharge channel.
CN201910766117.3A 2019-08-19 2019-08-19 Special numerical control automatic super-precision grinding machine for spherical roller and outer spherical surface Withdrawn CN110605634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910766117.3A CN110605634A (en) 2019-08-19 2019-08-19 Special numerical control automatic super-precision grinding machine for spherical roller and outer spherical surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910766117.3A CN110605634A (en) 2019-08-19 2019-08-19 Special numerical control automatic super-precision grinding machine for spherical roller and outer spherical surface

Publications (1)

Publication Number Publication Date
CN110605634A true CN110605634A (en) 2019-12-24

Family

ID=68890197

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910766117.3A Withdrawn CN110605634A (en) 2019-08-19 2019-08-19 Special numerical control automatic super-precision grinding machine for spherical roller and outer spherical surface

Country Status (1)

Country Link
CN (1) CN110605634A (en)

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Application publication date: 20191224

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