CN110666638B - A bearing inner ring raceway grinding machine - Google Patents

A bearing inner ring raceway grinding machine Download PDF

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Publication number
CN110666638B
CN110666638B CN201911047603.6A CN201911047603A CN110666638B CN 110666638 B CN110666638 B CN 110666638B CN 201911047603 A CN201911047603 A CN 201911047603A CN 110666638 B CN110666638 B CN 110666638B
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CN
China
Prior art keywords
seat
grinding wheel
spindle
axis
main shaft
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.)
Active
Application number
CN201911047603.6A
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Chinese (zh)
Other versions
CN110666638A (en
Inventor
杜三明
张宏
张永振
贺甜甜
刘建
岳赟
傅丽华
郑晓猛
张镝
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.)
Luoyang Tiemu Ken Bearing Technology Co ltd
Henan University of Science and Technology
Original Assignee
Luoyang Tiemu Ken Bearing Technology Co ltd
Henan University of Science and Technology
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Application filed by Luoyang Tiemu Ken Bearing Technology Co ltd, Henan University of Science and Technology filed Critical Luoyang Tiemu Ken Bearing Technology Co ltd
Priority to CN201911047603.6A priority Critical patent/CN110666638B/en
Publication of CN110666638A publication Critical patent/CN110666638A/en
Application granted granted Critical
Publication of CN110666638B publication Critical patent/CN110666638B/en
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Classifications

    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/10—Supply or regeneration of working media
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/02—Trimming or deburring
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
    • 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
    • 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
    • B24B49/12—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 involving optical means
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/075—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

本发明涉及一种轴承内圈滚道磨床，包括床身、安装平台、第一主轴、测量装置、第二主轴、X向移动平台、电磁无心夹具、电火花砂轮整形装置、电火花电极修型装置和上下料装置，所述的床身上部通过螺栓固定设置有水平的安装平台，安装平台上面X轴向一侧设置有X向平行导轨，所述的第一主轴、第二主轴、电火花电极修型装置从左到右依次水平设置在安装平台X轴向的另一侧，上下料装置设置在安装平台左端，所述测量装置设置在第一主轴与第二主轴之间，电火花电极修型装置设置在第二主轴右侧；所述的第一主轴、第二主轴上均设置有在线电解修锐装置。本发明可实现轴承套圈的半精磨和精磨在一次装夹的情况下完成。

The present invention relates to a bearing inner ring raceway grinder, comprising a bed, a mounting platform, a first spindle, a measuring device, a second spindle, an X-axis moving platform, an electromagnetic centerless clamp, an electric spark grinding wheel shaping device, an electric spark electrode shaping device and a loading and unloading device, wherein a horizontal mounting platform is fixedly provided on the upper part of the bed by bolts, an X-axis parallel guide rail is provided on one side of the mounting platform, the first spindle, the second spindle, and the electric spark electrode shaping device are horizontally arranged on the other side of the X-axis of the mounting platform from left to right, the loading and unloading device is arranged at the left end of the mounting platform, the measuring device is arranged between the first spindle and the second spindle, and the electric spark electrode shaping device is arranged on the right side of the second spindle; the first spindle and the second spindle are both provided with an online electrolytic sharpening device. The present invention can realize the semi-finishing and finishing grinding of the bearing ring in one clamping.

Description

Bearing inner race raceway grinding machine
Technical Field
The invention relates to bearing processing equipment, in particular to a bearing inner ring raceway grinding machine.
Background
Bearings are an important component in contemporary mechanical devices. Its main function is to support the mechanical rotator, reduce the friction coefficient in the course of its movement and ensure its rotation accuracy. In the operation process of mechanical equipment, especially in the operation process of some important equipment, regular overhauling and maintenance replacement of bearings are necessary means for ensuring normal operation of the equipment, in certain special cases, due to the guarantee of the overall performance of the equipment, even the complete replacement of bearings of the same type on the equipment is required regularly, so that a reasonable prediction on the service lives of the bearings is required, and when the service lives of the bearings of the whole batch are predicted, all indexes have high consistency among the bearings of the same type of the whole batch, so that the reasonable and effective prediction results can be ensured.
In the grinding processing of the bearing inner ring, the semi-finish grinding and finish grinding processing of the inner ring raceway have decisive effect on ensuring the consistency of the inner ring raceway. The existing inner ring raceway grinding machine comprises a numerical control inner ring raceway grinding machine, basically adopts a machining mode of a single main shaft, and when bearing rings are machined in batches, a machine tool corresponds to a certain fixed procedure, and semi-finish grinding and finish grinding are separated, so that the machining efficiency is high; but when reflecting the consistency of the inner race roller path of the bearing, because of the clamping errors among different machine tools and the errors among the size and the shape of the grinding head, even among processed qualified products, some tiny gaps are necessarily existed, so that the consistency of the whole batch of products is affected.
At present, in the processing of an inner ring raceway in China, an automatic assembly line processing mode is adopted more advanced, but the semi-finish grinding and finish grinding processes are also respectively finished on different equipment, wherein the two processes of feeding and discharging twice and clamping twice are also required, no matter how precise the clamping positioning mechanism is, certain positioning errors still necessarily exist in the process of clamping twice, the uniformity of the outer dimension of the inner ring raceway surface is poor, the phenomenon of inconsistency cannot be thoroughly eliminated even though the inner ring raceway is ultra-precise, the integral quality of the assembled bearing is influenced, and the integral uniformity of the produced bearing is not very good, so that the pre-judgment of the service life of the bearing is influenced.
Disclosure of Invention
The invention aims to provide a bearing inner ring raceway grinding machine, which is characterized in that a double grinding head, a two-dimensional movable workpiece clamping mechanism, a two-dimensional movable grinding wheel shaping mechanism and a three-dimensional movable loading and unloading device are designed, an electric spark grinding wheel trimming technology and a grinding head online electrolytic dressing technology are adopted, semi-finish grinding and finish grinding of a bearing inner ring raceway are realized under the condition of one-time clamping, the clamping error in the bearing inner ring raceway machining process can be reduced, and meanwhile, the grinding heads in two working procedures adopt the same trimming mechanism, so that the trimmed grinding heads have good consistency, and products with consistent machining sizes are obtained.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The electric spark shaping device is arranged on the right side of the upper part of the X-direction moving platform, the X-direction moving platform is arranged on the X-direction parallel guide rail and runs on the X-direction parallel guide rail, the lower part of the X-direction moving platform is fixedly connected with a nut connecting plate of the X-direction screw nut pair, a first Y-direction moving mechanism and a second Y-direction moving mechanism are respectively arranged on the X-direction moving platform, the first Y-direction moving mechanism and the second Y-direction moving mechanism are respectively provided with a Y-direction dragging plate, the electromagnetic coreless clamp is arranged on the left side of the upper part of the X-direction moving platform through the first Y-direction moving mechanism, the electric spark shaping device is arranged on the right side of the upper part of the X-direction moving platform through the second Y-direction moving mechanism, the electric spark shaping device is arranged on the right side of the upper part of the X-direction moving platform, the electric spark shaping device is arranged on the right side of the first spindle, the first Y-direction moving mechanism is arranged on the right side of the first spindle, the right spindle is arranged on the right side of the first spindle device, and the electric spark shaping device is arranged on the right side of the first spindle, and is arranged on the right side of the first spindle device, and is arranged on the right side of the electrode device is arranged on the left side, and is arranged on the electrode device; the first main shaft, the second main shaft constitute by emery wheel electricity main shaft, headstock, emery wheel axle, insulating shaft coupling, axle box, wherein the emery wheel electricity main shaft passes through headstock fixed mounting on mounting platform, wears to establish in the axle box with the coaxial emery wheel axle of emery wheel electricity main shaft, the axle box passes through the insulation board setting in mounting platform top, the one end of emery wheel axle is passed through insulating shaft coupling and is insulating and link firmly with the output of emery wheel electricity main shaft, the emery wheel is installed to the other end of emery wheel axle, the emery wheel is metal bond diamond grinding wheel, the emery wheel is connected with high frequency pulse power's positive pole electricity, the emery wheel axle axis of first main shaft, second main shaft parallel and equal height.
The on-line electrolytic dressing device comprises an X-axis moving mechanism, an insulating support, an electrolytic negative electrode and an electrolytic spray head, wherein the X-axis moving mechanism consists of a mounting seat, a guide rail, a linear motor and a moving plate, the mounting seat is fixedly arranged at the upper end of an axle box, the linear motor is arranged at one end above the mounting seat, the guide rail is arranged at the other end of the mounting seat, the moving plate is driven by the linear motor and runs on the guide rail, the upper end of the insulating support is fixedly connected with the moving plate, the lower end of the insulating support is provided with the electrolytic negative electrode, the electrolytic negative electrode is integrally an arc plate made of red copper, the electrolytic negative electrode is coaxially arranged at one side of a grinding wheel shaft and is connected with the negative electrode of a high-frequency pulse power supply, and the electrolytic spray head for spraying electrolyte is arranged at the lower end of the insulating support in a penetrating manner, and the outlet of the electrolytic spray head is positioned between the electrolytic negative electrode and the grinding wheel.
The electric spark grinding wheel shaping device comprises an electric spark negative electrode, an electrode electric spindle and an electric spark spray head, wherein the electrode electric spindle is arranged on a carriage of the second Y-direction moving mechanism through a fixed support, the electric spark negative electrode made of red copper is arranged at the output end of the electrode electric spindle, the electric spark negative electrode is connected with the negative electrode of a high-frequency pulse power supply, and the electric spark spray head for spraying electric spark electrolyte is fixedly arranged above the electric spark negative electrode.
The measuring device comprises a Z-direction displacement mechanism, a Z-direction supporting plate, a grating ruler, a measuring bracket and a measuring head, wherein the Z-direction displacement mechanism is composed of a vertical arm, a Z-direction parallel guide rail, a second lead screw nut pair and a second driving motor, one side of the vertical arm is provided with the Z-direction parallel guide rail, the second lead screw nut pair is arranged between the Z-direction parallel guide rail, the second driving motor is arranged at the top end of the vertical arm and is connected with a lead screw of the second lead screw nut pair through a speed reducing mechanism, the Z-direction supporting plate is fixedly connected with a nut connecting plate of the second lead screw nut pair and runs on the Z-direction parallel guide rail, the measuring head is arranged on the measuring bracket, the measuring bracket is fixedly connected on the Z-direction supporting plate and is positioned on one side of the vertical arm facing to an X-direction moving platform, a scale grating of the grating ruler is fixedly arranged on the other side of the vertical arm, and a grating reading head of the grating ruler is fixedly connected with the Z-direction supporting plate through a connecting plate.
The electromagnetic coreless clamp is arranged on the carriage of the first Y-direction moving mechanism through a clamp seat capable of horizontally adjusting the angle, and a second motor for driving the coreless clamp to rotate is arranged above the clamp seat through a motor seat.
The electric spark electrode shaping device is composed of a base, a tool rest seat, a tool rest and a turning tool, wherein the base is arranged on the right side of the second main shaft, the lower end of the base is fixedly connected with an installation platform, the upper end of the base is provided with the tool rest seat, the upper end face of the tool rest seat is provided with a T-shaped groove, the tool rest is installed in the T-shaped groove of the tool rest seat through a T-shaped bolt, the side face of the tool rest is provided with an open groove for accommodating the turning tool, and a fastening bolt for clamping the turning tool is arranged on the side wall of the open groove, which is positioned on the upper portion of the tool rest.
The feeding and discharging device comprises an X-axis displacement mechanism, a Y-axis displacement mechanism, a Z-axis displacement mechanism, a mechanical arm, a mechanical claw, a driving mechanism and a material frame, wherein the material frame is arranged at one side of a machine tool installation platform, which is provided with an X-direction moving platform, the X-axis displacement mechanism is arranged at the other side of the left end of the machine tool installation platform, the Y-axis displacement mechanism is arranged on the X-axis displacement mechanism, the upper end of the Y-axis displacement mechanism is provided with a bearing flat plate capable of moving in the Y direction, the Z-axis displacement mechanism is arranged on the bearing flat plate of the Y-axis displacement mechanism, the mechanical arm is arranged on the Z-axis displacement mechanism, the mechanical claw is arranged at the lower end of the mechanical arm, and the driving mechanism for driving the mechanical claw to grasp the bearing inner ring is arranged at the upper end of the mechanical arm;
The Z-axis displacement mechanism consists of a bracket, a Z-direction guide rod, a Z-direction screw nut pair and a Z-axis driving motor, the whole bracket is of a rectangular box-type structure with one side open, the open side of the bracket is adjacent to a material rack and parallel to an X-axis, the bottom surface of the bracket is fixedly connected with a bearing plate on the Y-axis displacement mechanism, the parallel Z-direction guide rod is arranged in the open side of the bracket, the Z-direction screw nut pair is arranged between the Z-direction guide rods, the lower end of a screw of the Z-direction screw nut pair is arranged above the bottom surface in the bracket through a shaft seat, the upper end of the screw is arranged in the upper end surface of the bracket in a penetrating way through a bearing, the upper end of the screw also penetrates through the upper end surface of the bracket and is fixedly connected with the Z-axis driving motor through a shaft coupling, and the Z-axis driving motor is arranged on the upper end surface of the bracket through a motor seat;
The whole mechanical arm is a rectangular plate, the middle part of the bottom surface of the mechanical arm is fixedly connected with a nut connecting plate of a Z-direction screw nut pair, and two sides of the bottom surface of the mechanical arm respectively run on a Z-direction guide rod through a sliding block;
The mechanical claw comprises a bottom plate, a fixed seat, a movable seat and a claw body, wherein the bottom plate is integrally a circular plate, the rear end face of the bottom plate is fixedly connected with the mechanical arm, three T-shaped grooves which are equally divided into circumferences are radially formed in the front end face of the bottom plate, one T-shaped groove is positioned on the upper portion of the front end face of the bottom plate and parallel to a Z axis, detachable fixed seats are arranged in the other two T-shaped grooves, the movable seat is arranged in the T-shaped groove on the upper portion of the front end face of the bottom plate and runs in the T-shaped groove through a driving mechanism, and cylindrical claw bodies perpendicular to the end face of the bottom plate are arranged on the fixed seat and the movable seat.
The material rack comprises a material rack base, support plates, an upper material bin and a lower material bin, wherein the material rack base is fixedly arranged at one side of the left end of a machine tool mounting platform, the support plates with the side faces parallel to an X axis are arranged at intervals on the left side of the upper end face of the material rack base, the upper ends of the same side faces of the two support plates parallel to the X axis are provided with the upper material bin, and the lower material bin is arranged at the lower end of the same side face of the two support plates parallel to the X axis; the whole upper bin is of a rectangular box-type structure with an opening at the upper part, one side surface of the upper bin is fixedly connected with the supporting plate, the bottom surface of the upper bin is provided with an inclined surface with a downward inclined right end, the left end surface of the upper bin is provided with a feed inlet, and the right end of one side surface of the upper bin adjacent to the mechanical claw is provided with a discharge outlet; the whole rectangular box structure with the upper part open is also adopted in the discharging bin, one side surface of the rectangular box structure is fixedly connected with the supporting plate, the bottom surface of the rectangular box structure is provided with an inclined surface with the left end inclined downwards, the left end surface of the discharging bin is provided with a discharge hole, and the right end of one side surface of the discharging bin adjacent to the mechanical claw is provided with a feed inlet.
The driving mechanism is a driving oil cylinder, the cylinder body of the driving mechanism is fixed at the upper end of the mechanical arm, and the piston rod end of the driving mechanism is fixedly connected with the movable seat of the mechanical claw.
The whole T-shaped block matched with the T-shaped groove of the bottom plate of the mechanical claw is arranged on the fixing seat of the mechanical claw, the middle part of the mechanical claw is provided with a threaded through hole and is fastened in the T-shaped groove through a countersunk bolt arranged in the threaded through hole, and threaded holes for installing the claw body are formed in the end face of the outer part of the T-shaped groove at intervals.
The movable seat of the mechanical claw is integrally a T-shaped block in clearance fit with the T-shaped groove of the bottom plate, a threaded hole for installing the claw body is also formed in the end face of the outer part of the T-shaped groove, and a threaded hole for connecting a driving mechanism is formed in the upper end face of the mechanical claw.
The claw body of the mechanical claw consists of a body, a positioning ring and a protection ring, wherein the body is a cylinder, one end of the body is coaxially provided with a screw rod used for connecting a fixed seat or a movable seat, the other end of the body is coaxially provided with a mandrel, the other end of the mandrel is provided with an internal thread, a fastening bolt is arranged in the internal thread, the positioning ring penetrates through the mandrel to be sleeved on the body, and the protection ring is sleeved on the mandrel and is tightly pressed with the end face of the positioning ring through the fastening bolt at the end part of the mandrel.
The principle of the invention is as follows: the double main shafts are adopted, so that the semi-finish grinding and finish grinding of the bearing ring can be finished under the condition of one-time clamping; the designed online electrolytic dressing device is used for dressing the grinding wheel and is convenient for discharging the grinding scraps; the electric spark shaping device is used for shaping the grinding wheel, is matched with the online electrolytic shaping device and the measuring device for use, and has high shaping efficiency; the three-axis linkage feeding and discharging device further improves the working efficiency of the equipment.
The beneficial effects of the invention are as follows: the invention has simple and reasonable structure, can realize the semi-finish grinding and finish grinding of the bearing ring under the condition of one-time clamping, and has high processing efficiency, high precision of the processed product and good dimensional consistency.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a view from A-A in fig. 2.
Fig. 4 is a view in the direction B-B of fig. 2.
Fig. 5 is a schematic view of a second spindle and its on-line electrolytic dressing apparatus.
FIG. 6 is an A-A view of the second spindle and its on-line electrolytic dressing apparatus.
Fig. 7 is a schematic view of an insulating holder in an in-line electrolytic dressing apparatus.
Fig. 8 is a schematic view of a measuring device.
Fig. 9 is a top view of the measuring device.
Fig. 10 is a schematic view of a spark abrasive wheel truing device.
Fig. 11 is a top view of an electromagnetic coreless fixture and spark.
Fig. 12 is a schematic view of a gripper in the loading and unloading device.
Fig. 13 is also a schematic view of the gripper.
FIG. 14 is a schematic view of the connection of the gripper body to the holder.
In the figure, 1, a lathe bed, 2, a mounting platform, 3, a first main shaft, 4, a measuring device, 5, a second main shaft, 6, an X-direction moving platform, 601, an X-direction parallel guide rail, 602, an X-direction lead screw nut pair, 603, a first motor, 604, a first Y-direction moving mechanism, 605, a second Y-direction moving mechanism, 7, an electromagnetic centerless clamp, 8, an electric spark grinding wheel shaping device, 9, an electric spark electrode shaping device, 10, a feeding and discharging device, 11 and an online electrolytic sharpening device;
402. The device comprises a Z-direction supporting plate, 403, a grating ruler, 404, a measuring bracket, 405, a measuring head, 411, a vertical arm, 412, a Z-direction parallel guide rail, 413, a second lead screw nut pair, 414 and a second driving motor;
Grinding wheel motorized spindle 502, spindle seat 503, grinding wheel shaft 504, insulating coupling 505, axle box 506, grinding wheel;
A clamp seat;
The electric spark negative electrode 802, the electrode electric spindle 803, the electric spark spray head 804 and the fixed support;
a base, 902, a tool holder base, 903, a tool holder, 904, a turning tool;
1001. The X-axis displacement mechanism 1002, the Y-axis displacement mechanism 1021, a bearing flat plate, 1031, a bracket, 1032, a Z-direction guide rod, 1033, a Z-direction screw nut pair, 1034, a Z-axis driving motor, 1004, a mechanical arm, 1005, a mechanical claw, 1051, a bottom plate, 1052, a fixed seat, 1053, a movable seat, 1054, a claw body, 1541, a body, 1542, a positioning ring, 1543, a protection ring, 1544, a screw, 1545, a mandrel, 1006, a driving mechanism, 1007, a work rest, 1071, a work rest base, 1072, a supporting plate, 1073, an upper stock bin, 1074 and a lower stock bin;
1102. insulating support 1103, electrolytic negative electrode, 1104, electrolytic nozzle, 1111, mounting seat, 1112, guide rail, 1113, linear motor, 1114 and moving plate.
Description of the embodiments
The invention is described in further detail below with reference to the drawings.
The bearing inner race raceway grinding machine comprises a machine body 1, a mounting platform 2, a first main shaft 3, a measuring device 4, a second main shaft 5, an X-direction moving platform 6, an electromagnetic centerless clamp 7, an electric spark grinding wheel shaping device 8, an electric spark electrode shaping device 9 and an upper and lower material device 10, wherein the upper part of the machine body 1 is fixedly provided with the horizontal mounting platform 2 through bolts, one side of the X-direction upper surface of the mounting platform 2 is provided with an X-direction parallel guide rail 601, an X-direction lead screw nut pair 602 is arranged between the X-direction parallel guide rails 601, the X-direction moving platform 6 is arranged on the X-direction parallel guide rail 601 and runs on the X-direction parallel guide rail 601, the lower part of the X-direction moving platform 6 is fixedly connected with a nut connecting plate of the X-direction lead screw nut pair 602, the X-direction moving platform 6 is respectively provided with a first Y-direction moving mechanism 604 and a second Y-direction moving mechanism 605, the electromagnetic centerless clamp 7 is arranged on the upper part of the X-direction moving platform 6 through the first Y-direction moving mechanism 604, the second Y-direction moving mechanism 605 is respectively provided with a Y-direction pulling plate, the electromagnetic centerless clamp 7 is arranged on the upper part of the X-direction moving platform 6 through the first Y-direction moving mechanism 604, the left-direction moving mechanism 8 is arranged on the X-direction electrode 5, the second main shaft 5 is arranged on the second main shaft 5, the electric spark electrode shaping device 2 is arranged on the side 2, the left-direction electrode shaping device 2 is arranged on the side 2, the side of the first main shaft 5, and the electric spark electrode shaping device is arranged on the side 2, and the side 2 is arranged on the side end of the side of the main shaft device 2, and is arranged on the side, and the side 3 side, which is arranged on the side, and the side 3 side, and is arranged on the side; the first spindle 3 and the second spindle 5 are composed of a grinding wheel electric spindle 501, a spindle seat 502, a grinding wheel shaft 503, an insulating coupler 504 and an axle box 505, wherein the grinding wheel electric spindle 501 is fixedly installed on an installation platform 2 through the spindle seat 502, the grinding wheel shaft 503 coaxial with the grinding wheel electric spindle 501 is arranged in the axle box 505 in a penetrating mode, the axle box 505 is arranged above the installation platform through an insulating plate, one end of the grinding wheel shaft 503 is insulated and fixedly connected with the output end of the grinding wheel electric spindle 501 through the insulating coupler 504, the other end of the grinding wheel shaft 503 is provided with a grinding wheel 506, the grinding wheel 506 is a metal binding agent diamond grinding wheel, the grinding wheel 506 is electrically connected with the positive electrode of a high-frequency pulse power supply, and the axes of the grinding wheel shafts 503 of the first spindle 3 and the second spindle 5 are parallel and are equal in height.
The online electrolytic dressing device 11 is arranged on the first main shaft 3 and the second main shaft 5, the online electrolytic dressing device 11 comprises an X-axis moving mechanism, an insulating support 1102, an electrolytic negative electrode 1103 and an electrolytic spray nozzle 1104, the X-axis moving mechanism comprises a mounting seat 1111, a guide rail 1112, a linear motor 1113 and a moving plate 1114, the mounting seat 1111 is fixedly arranged at the upper end of the axle box 505, the linear motor 1113 is arranged at one end above the mounting seat 1111, the guide rail 1112 is arranged at the other end of the mounting seat, the moving plate 1114 is driven by the linear motor 1113 and operates on the guide rail 1112, the upper end of the insulating support 1102 is fixedly connected with the moving plate 1114, the lower end of the insulating support is provided with the electrolytic negative electrode 1103, the electrolytic negative electrode 1103 is integrally an arc plate made of red copper, the electrolytic negative electrode 1103 is coaxially arranged at one side of the grinding wheel axle 503 and is connected with the negative electrode of a high-frequency pulse power supply, the electrolytic spray nozzle 1104 for spraying electrolyte is arranged at the lower end of the insulating support 1102 in a penetrating manner, and the outlet of the electrolytic spray nozzle 1104 is positioned between the electrolytic negative electrode and the grinding wheel 506.
The electric spark grinding wheel shaping device 8 comprises an electric spark negative electrode 801, an electrode electric spindle 802 and an electric spark spray head 803, wherein the electrode electric spindle 802 is arranged on a carriage of the second Y-direction moving mechanism 605 through a fixed support 804, the electric spark negative electrode 801 made of red copper is arranged at the output end of the electrode electric spindle 802, the electric spark negative electrode 801 is connected with the negative electrode of a high-frequency pulse power supply, and the electric spark spray head 803 for spraying electric spark electrolyte is fixedly arranged above the electric spark negative electrode 801.
The measuring device 4 comprises a Z-direction displacement mechanism, a Z-direction supporting plate 402, a grating ruler 403, a measuring bracket 404 and a measuring head 405, wherein the Z-direction displacement mechanism is composed of a vertical arm 411, a Z-direction parallel guide rail 412, a second lead screw nut pair 413 and a second driving motor 414, one side surface of the vertical arm 411 is provided with the Z-direction parallel guide rail 412, the second lead screw nut pair 413 is arranged between the Z-direction parallel guide rails 412, the second driving motor 414 is arranged at the top end of the vertical arm 411 and is connected with a lead screw of the second lead screw nut pair 413 through a speed reducing mechanism, a nut connecting plate of the Z-direction supporting plate 402 and a nut connecting plate of the second lead screw nut pair 413 are fixedly connected and run on the Z-direction parallel guide rail 412, the measuring head 405 is arranged on the measuring bracket 404, the measuring bracket 404 is fixedly connected on the Z-direction supporting plate 402 and is positioned on one side of the vertical arm 411, which faces the X-direction moving platform 6, a grating of the grating ruler 403 is fixedly arranged on the other side of the vertical arm 411, and a grating reading head of the grating ruler 403 is fixedly connected with the Z-direction connecting plate 402.
The electromagnetic coreless clamp 7 is arranged on the carriage of the first Y-direction moving mechanism 604 through a clamp seat 701 capable of horizontally adjusting the angle, and a second motor for driving the coreless clamp to rotate is arranged above the clamp seat 701 through a motor seat.
The electric spark electrode shaping device 9 is composed of a base 901, a tool rest base 902, a tool rest 903 and a turning tool 904, wherein the base 901 is arranged on the right side of the second spindle 5, the lower end of the base is fixedly connected with the mounting platform 2, the upper end of the base is provided with the tool rest base 902, the upper end face of the tool rest base 902 is provided with a T-shaped groove, the tool rest 903 is arranged in the T-shaped groove of the tool rest base 902 through a T-shaped bolt, the side face of the tool rest 903 is provided with an open groove for accommodating the turning tool 904, and the side wall of the open groove, which is positioned on the upper portion of the tool rest 903, is provided with a fastening bolt for clamping the turning tool 904.
The feeding and discharging device 10 comprises an X-axis displacement mechanism 1001, a Y-axis displacement mechanism 1002, a Z-axis displacement mechanism, a mechanical arm 1004, a mechanical claw 1005, a driving mechanism 1006 and a material frame 1007, wherein the material frame 1007 is arranged at one side of the left end of the machine tool mounting platform 2, which is provided with an X-direction moving platform 6, the X-axis displacement mechanism 1001 is arranged at the other side of the left end of the machine tool mounting platform 2, the Y-axis displacement mechanism 1002 is arranged on the X-axis displacement mechanism 1001, the upper end of the Y-axis displacement mechanism 1002 is provided with a bearing flat plate 1021 capable of moving in the Y direction, the Z-axis displacement mechanism 1003 is arranged on the bearing flat plate 1021 of the Y-axis displacement mechanism 1002, the mechanical arm 1004 is arranged on the Z-axis displacement mechanism 1003, the mechanical claw 1005 is arranged at the lower end of the mechanical arm 1004, and the driving mechanism 1006 for driving the mechanical claw 1005 to grasp the inner ring of a bearing is arranged at the upper end of the mechanical arm 1004;
The Z-axis displacement mechanism consists of a bracket 1031, a Z-direction guide rod 1032, a Z-direction screw nut pair 1033 and a Z-axis driving motor 1034, the whole bracket 1031 is of a rectangular box-type structure with one side open, the open side of the bracket 1031 is adjacent to a material rack 1007 and parallel to an X-axis, the bottom surface of the bracket 1031 is fixedly connected with a bearing plate 1021 on the Y-axis displacement mechanism 1002, the parallel Z-direction guide rod 1032 is arranged in the open side of the bracket 1031, the Z-direction screw nut pair 1033 is arranged between the Z-direction guide rods 1032, the lower end of a screw of the Z-direction screw nut pair 1033 is arranged above the inner bottom surface of the bracket 1031 through a shaft seat, the upper end of the screw is arranged in the upper end surface of the bracket 1031 in a penetrating way through a bearing, the upper end of the screw also penetrates through the upper end surface of the bracket 1031 and is fixedly connected with the Z-axis driving motor 1034 through a motor seat;
The whole mechanical arm 1004 is a rectangular plate, the middle part of the bottom surface of the mechanical arm is fixedly connected with a nut connecting plate of a Z-direction screw nut pair 1033, and two sides of the bottom surface of the mechanical arm respectively run on a Z-direction guide rod 1032 through a sliding block;
The mechanical claw 1005 is composed of a bottom plate 1051, a fixed seat 1052, a movable seat 1053 and a claw body 1054, the whole bottom plate 1051 is a circular plate, the rear end surface of the bottom plate 1051 is fixedly connected with a mechanical arm 1004, three T-shaped grooves which are equally distributed on the circumference are radially arranged on the front end surface of the bottom plate 1051, one T-shaped groove is positioned on the upper part of the front end surface of the bottom plate 1051 and parallel to a Z axis, a detachable fixed seat 1052 is arranged in the other two T-shaped grooves, the movable seat 1053 is arranged in the T-shaped groove on the upper part of the front end surface of the bottom plate 1051 and runs in the T-shaped groove through a driving mechanism 1006, and the fixed seat 1052 and the movable seat 1053 are respectively provided with a cylindrical claw body 1054 which is perpendicular to the end surface of the bottom plate 1051.
The material rack comprises a material rack base 1071, support plates 1072, an upper material bin 1073 and a lower material bin 1074, wherein the material rack base 1071 is fixedly arranged at one side of the left end of a machine tool mounting platform 2, the support plates 1072 with the side faces parallel to an X axis are arranged at intervals on the left side of the upper end face of the material rack base 1071, the upper ends of the same side faces of the two support plates 1072 parallel to the X axis are provided with the upper material bin 1073, and the lower material bin 1074 is arranged at the lower end of the same side face of the two support plates 1072; the whole upper bin 1073 is of a rectangular box-type structure with an opening at the upper part, one side surface of the upper bin 1073 is fixedly connected with the supporting plate 1072, the bottom surface of the upper bin 1073 is provided with an inclined surface with the right end inclined downwards, the left end surface of the upper bin 1073 is provided with a feed inlet, and the right end of one side surface of the upper bin 1073 adjacent to the mechanical claw 1005 is provided with a discharge outlet; the whole rectangular box structure with an opening at the upper part of the lower bin 1074 is also provided with a side surface fixedly connected with the supporting plate 1072, the bottom surface of the rectangular box structure is provided with an inclined surface with a downward inclined left end, the left end surface of the lower bin 1074 is provided with a discharge hole, and the right end of one side surface of the lower bin 1074 adjacent to the mechanical claw 1005 is provided with a feed inlet.
The driving mechanism 1006 is a driving cylinder, the cylinder body of which is fixed at the upper end of the mechanical arm 1004, and the piston rod end of which is fixedly connected with the movable seat 1053 of the mechanical claw 1005.
The whole fixed seat 1052 of the mechanical claw 1005 is a T-shaped block matched with a T-shaped groove of the bottom plate 1051, a threaded through hole is formed in the middle of the fixed seat and is fastened in the T-shaped groove through a countersunk bolt arranged in the threaded through hole, and threaded holes for installing the claw 1054 are formed in the end face of the outer portion of the T-shaped groove at intervals.
The movable seat 1053 of the mechanical claw 1005 is a T-shaped block which is in clearance fit with the T-shaped groove of the bottom plate, a threaded hole for installing the claw 1054 is also arranged on the end surface of the outer part of the T-shaped groove, and a threaded hole for connecting the driving mechanism 1006 is arranged on the upper end surface of the mechanical claw 1005.
The claw body 1054 of the mechanical claw 1005 is composed of a body 1541, a positioning ring 1542 and a protection ring 1543, the body 1541 is a cylinder, one end of the body 1541 is coaxially provided with a screw rod 1544 for connecting a fixed seat 1052 or a movable seat 1053, the other end of the body 1541 is coaxially provided with a mandrel 1545, the other end of the mandrel 1545 is provided with an internal thread, a fastening bolt is arranged in the internal thread, the positioning ring 1542 passes through the mandrel 1545 to be sleeved on the body 1541, and the protection ring 1543 is sleeved on the mandrel 1545 and is tightly pressed with the end face of the positioning ring 1542 through the fastening bolt at the end part of the mandrel 1545.
The invention is not described in detail in the prior art.

Claims (6)

1. The utility model provides a bearing inner race raceway grinding machine, includes lathe bed (1), mounting platform (2), first main shaft (3), measuring device (4), second main shaft (5), X are to moving platform (6), electromagnetism centerless anchor clamps (7), spark-erosion grinding wheel shaping device (8), spark-erosion electrode shaping device (9) and last unloader (10), lathe bed (1) upper portion be provided with horizontal mounting platform (2) through the bolt fastening, X are provided with X to parallel guide rail (601) on mounting platform (2) above X axial one side, are provided with X to screw nut pair (602) between X to parallel guide rail (601), X to moving platform (6) set up on X to parallel guide rail (601) and move on X to parallel guide rail (601), the lower part of X to moving platform (6) links firmly with the nut connecting plate of X to screw nut pair (602), characterized by: the X-direction moving platform (6) is respectively provided with a first Y-direction moving mechanism (604) and a second Y-direction moving mechanism (605), the first Y-direction moving mechanism (604) and the second Y-direction moving mechanism (605) are respectively provided with a Y-direction carriage, the electromagnetic coreless clamp (7) is arranged at the left side of the upper part of the X-direction moving platform (6) through the first Y-direction moving mechanism (604), the electric spark grinding wheel shaping device (8) is arranged at the right side of the upper part of the X-direction moving platform (6) through the second Y-direction moving mechanism (605), a first motor (603) for driving the X-direction screw to rotate is arranged on the mounting platform (2) at one end of the X-direction screw, the first spindle (3), the second spindle (5) and the electric spark electrode shaping device (9) are sequentially and horizontally arranged at the other side of the X-direction of the mounting platform (2), the feeding and discharging device (10) is arranged at the left end of the mounting platform (2), the measuring device (4) is arranged between the first spindle (3) and the second spindle (5), and the electric spark electrode shaping device (9) is arranged at the right side of the second spindle (5); the first main shaft (3) and the second main shaft (5) are composed of a grinding wheel electric main shaft (501), a main shaft seat (502), a grinding wheel shaft (503), an insulating coupler (504) and an axle box (505), wherein the grinding wheel electric main shaft (501) is fixedly arranged on a mounting platform (2) through the main shaft seat (502), the grinding wheel shaft (503) coaxial with the grinding wheel electric main shaft (501) is arranged in the axle box (505) in a penetrating way, the axle box (505) is arranged above the mounting platform (2) through an insulating plate, one end of the grinding wheel shaft (503) is insulated and fixedly connected with the output end of the grinding wheel electric main shaft (501) through the insulating coupler (504), the other end of the grinding wheel shaft (503) is provided with a grinding wheel (506), the grinding wheel (506) is a metal binding agent diamond grinding wheel, and the grinding wheel (506) is electrically connected with the positive electrode of a high-frequency pulse power supply, and the axes of the grinding wheel shafts (503) of the first main shaft (3) and the second main shaft (5) are parallel and have the same height;
The online electrolytic dressing device (11) is arranged on the first main shaft (3) and the second main shaft (5), the online electrolytic dressing device (11) comprises an X-axis moving mechanism, an insulating support (1102), an electrolytic negative electrode (1103) and an electrolytic spray head (1104), the X-axis moving mechanism is composed of a mounting seat (1111), a guide rail (1112), a linear motor (1113) and a moving plate (1114), the mounting seat (1111) is fixedly arranged at the upper end of the axle box (505), the linear motor (1113) is arranged at one end above the mounting seat (1111), a guide rail (1112) is arranged at the other end of the mounting seat, the moving plate (1114) is driven by the linear motor (1113) and runs on the guide rail (1112), the upper end of the insulating support (1102) is fixedly connected with the moving plate (1114), the electrolytic negative electrode (1103) is arranged at the lower end of the insulating support (1102), the electrolytic negative electrode (1103) is integrally made of red copper, the electrolytic negative electrode (1103) is coaxially arranged at one side of the grinding wheel axle (503) and is connected with a negative electrode of a high-frequency pulse power supply, and the electrolytic spray head (1104) is arranged between the insulating support (506) and the lower end of the insulating support (506);
The electric spark grinding wheel shaping device (8) comprises an electric spark negative electrode (801), an electrode electric spindle (802) and an electric spark spray head (803), wherein the electrode electric spindle (802) is arranged on a carriage of the second Y-direction moving mechanism (605) through a fixed support (804), the electric spark negative electrode (801) made of red copper is arranged at the output end of the electrode electric spindle (802), the electric spark negative electrode (801) is connected with the negative electrode of a pulse power supply, and the electric spark spray head (803) for spraying electric spark electrolyte is fixedly arranged above the electric spark negative electrode (801);
The feeding and discharging device (10) comprises an X-axis displacement mechanism (1001), a Y-axis displacement mechanism (1002), a Z-axis displacement mechanism, a mechanical arm (1004), a mechanical claw (1005), a driving mechanism (1006) and a material frame (1007), wherein the material frame (1007) is arranged at one side of the machine tool mounting platform (2) where the left end is provided with an X-direction moving platform (6), the X-axis displacement mechanism (1001) is arranged at the other side of the left end of the machine tool mounting platform (2), the Y-axis displacement mechanism (1002) is arranged on the X-axis displacement mechanism (1001), the upper end of the Y-axis displacement mechanism (1002) is provided with a bearing flat plate (1021) capable of moving in the Y direction, the Z-axis displacement mechanism (1003) is arranged on the bearing flat plate (1021) of the Y-axis displacement mechanism (1002), the mechanical arm (1004) is arranged on the Z-axis displacement mechanism (1003), the mechanical claw (1005) is arranged at the lower end of the mechanical arm (1004), and the driving mechanism (1006) for driving the mechanical claw (1005) to grasp the inner ring of a bearing is arranged at the upper end of the mechanical arm (1004);
The Z-axis displacement mechanism consists of a bracket (1031), a Z-direction guide rod (1032), a Z-direction screw nut pair (1033) and a Z-axis driving motor (1034), wherein the bracket (1031) is of a rectangular box-type structure with one side open, the open side of the bracket is adjacent to a material frame (1007) and parallel to an X-axis, the bottom surface of the bracket (1031) is fixedly connected with a bearing plate (1021) on the Y-axis displacement mechanism (1002), parallel Z-direction guide rods (1032) are arranged in the open side of the bracket, the Z-direction screw nut pair (1033) is arranged between the Z-direction guide rods (1032), the lower end of a screw of the Z-direction screw nut pair (1033) is arranged above the inner bottom surface of the bracket (1031) through a shaft seat, the upper end of the screw is arranged in the upper end surface of the bracket (1031) in a penetrating manner through a bearing, the upper end of the screw also penetrates through the upper end surface of the bracket (1031) and is fixedly connected with the Z-axis driving motor (1034) through a coupler, and the Z-axis driving motor (1034) is arranged on the upper end surface of the bracket (1031) through a motor seat;
The whole mechanical arm (1004) is a rectangular plate, the middle part of the bottom surface of the mechanical arm is fixedly connected with a nut connecting plate of a Z-direction screw nut pair (1033), and two sides of the bottom surface of the mechanical arm respectively run on a Z-direction guide rod (1032) through a sliding block;
The mechanical claw (1005) is composed of a bottom plate (1051), a fixed seat (1052), a movable seat (1053) and a claw body (1054), wherein the bottom plate (1051) is integrally a circular plate, the rear end face of the bottom plate (1051) is fixedly connected with a mechanical arm (1004), three T-shaped grooves which are equally divided into circumferences are radially arranged on the front end face of the bottom plate (1051), one T-shaped groove is positioned on the upper part of the front end face of the bottom plate (1051) and parallel to a Z axis, detachable fixed seats (1052) are arranged in the other two T-shaped grooves, the movable seat (1053) is arranged in the T-shaped groove on the upper part of the front end face of the bottom plate (1051) and runs in the T-shaped groove through a driving mechanism (1006), and the fixed seat (1052) and the movable seat (1053) are both provided with a cylindrical claw body (1054) which is perpendicular to the end face of the bottom plate (1051).
The material rack comprises a material rack base (1071), support plates (1072), an upper material bin (1073) and a lower material bin (1074), wherein the material rack base (1071) is fixedly arranged on one side of the left end of a machine tool mounting platform (2), the support plates (1072) with the side faces parallel to an X axis are arranged at intervals on the left side of the upper end face of the material rack base (1071), the upper ends of the same side faces of the two support plates (1072) parallel to the X axis are provided with the upper material bin (1073), and the lower end of the same side face of the two support plates (1072) parallel to the X axis is provided with the lower material bin (1074); the feeding bin (1073) is integrally of a rectangular box-type structure with an opening at the upper part, one side surface of the feeding bin is fixedly connected with the supporting plate (1072), the bottom surface of the feeding bin is provided with a downward inclined surface at the right end, the left end surface of the feeding bin (1073) is provided with a feeding hole, and the right end of one side surface of the feeding bin (1073) adjacent to the mechanical claw (1005) is provided with a discharging hole; the whole rectangular box-type structure with the upper part of the discharging bin (1074) is also provided with an opening, one side surface of the rectangular box-type structure is fixedly connected with the supporting plate (1072), the bottom surface of the rectangular box-type structure is provided with an inclined surface with the left end inclined downwards, the left end surface of the discharging bin (1074) is provided with a discharging hole, and the right end of one side surface of the discharging bin (1074) adjacent to the mechanical claw (1005) is provided with a feeding hole.
2. The bearing inner race raceway grinding machine of claim 1, wherein: the measuring device (4) comprises a Z-direction displacement mechanism, a Z-direction supporting plate (402), a grating ruler (403), a measuring bracket (404) and a measuring head (405), wherein the Z-direction displacement mechanism is composed of a vertical arm (411), a Z-direction parallel guide rail (412), a second lead screw nut pair (413) and a second driving motor (414), one side of the vertical arm (411) is provided with the Z-direction parallel guide rail (412), the second lead screw nut pair (413) is arranged between the Z-direction parallel guide rails (412), the second driving motor (414) is arranged at the top end of the vertical arm (411) and is connected with a lead screw of the second lead screw nut pair (413) through a speed reducing mechanism, the Z-direction supporting plate (402) is fixedly connected with a nut connecting plate of the second lead screw nut pair (413) and runs on the Z-direction parallel guide rail (412), the measuring head (405) is arranged on the measuring bracket (404), the measuring bracket (404) is fixedly connected onto the Z-direction supporting plate (402) and is positioned on one side of the vertical arm (411) facing the X-direction moving platform (6), and the grating (403) is fixedly arranged on the other side of the grating ruler (403) and is fixedly connected with the grating ruler (403) through the grating ruler (402).
3. The bearing inner race raceway grinding machine of claim 1, wherein: the electromagnetic coreless clamp (7) is arranged on a carriage of the first Y-direction moving mechanism (604) through a clamp seat (701) capable of horizontally adjusting an angle, and a second motor for driving the coreless clamp to rotate is arranged above the clamp seat (701) through a motor seat.
4. The bearing inner race raceway grinding machine of claim 1, wherein: the electric spark electrode shaping device (9) comprises a base (901), a tool rest seat (902), a tool rest (903) and a turning tool (904), wherein the base (901) is arranged on the right side of a second main shaft (5), the lower end of the base is fixedly connected with a mounting platform (2), the upper end of the base is provided with the tool rest seat (902), the upper end face of the tool rest seat (902) is provided with a T-shaped groove, the tool rest (903) is arranged in the T-shaped groove of the tool rest seat (902) through a T-shaped bolt, the side face of the tool rest (903) is provided with an open groove for accommodating the turning tool (904), and the side wall of the open groove, which is positioned on the upper part of the tool rest (903), is provided with a fastening bolt for clamping the turning tool (904).
5. The bearing inner race raceway grinding machine of claim 1, wherein: the driving mechanism (1006) is a driving oil cylinder, the cylinder body of the driving mechanism is fixed at the upper end of the mechanical arm (1004), and the piston rod end of the driving mechanism is fixedly connected with the movable seat (1053) of the mechanical claw (1005).
6. The bearing inner race raceway grinding machine of claim 1, wherein: the mechanical claw (1005) is characterized in that the whole fixing seat (1052) of the mechanical claw is a T-shaped block matched with a T-shaped groove of the bottom plate (1051), a threaded through hole is formed in the middle of the mechanical claw and is fastened in the T-shaped groove through a countersunk bolt arranged in the threaded through hole, and threaded holes for installing the claw body (1054) are formed in the end face of the mechanical claw, which is positioned outside the T-shaped groove, at intervals; the movable seat (1053) of the mechanical claw (1005) is integrally a T-shaped block in clearance fit with the T-shaped groove of the bottom plate, a threaded hole for installing the claw body (1054) is also formed in the end face of the outer part of the T-shaped groove, and a threaded hole for connecting the driving mechanism (1006) is formed in the upper end face of the mechanical claw; the claw body (1054) of the mechanical claw (1005) is composed of a body (1541), a positioning ring (1542) and a protection ring (1543), wherein the body (1541) is a cylinder, one end of the body is coaxially provided with a screw rod (1544) for connecting a fixed seat (1052) or a movable seat (1053), the other end of the body is coaxially provided with a mandrel (1545), the other end of the mandrel (1545) is provided with an internal thread, a fastening bolt is arranged in the internal thread, the positioning ring (1542) passes through the mandrel (1545) and is sleeved on the body (1541), and the protection ring (1543) is sleeved on the mandrel (1545) and is tightly pressed with the end face of the positioning ring (1542) through the fastening bolt at the end part of the mandrel (1545).
CN201911047603.6A 2019-10-30 2019-10-30 A bearing inner ring raceway grinding machine Active CN110666638B (en)

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CN112872724A (en) * 2021-01-08 2021-06-01 北京工业大学 Bearing raceway precise progressive precise forming grinding machining method based on ELID grinding
CN112917340A (en) * 2021-01-16 2021-06-08 北京工业大学 Bearing raceway accurate progressive precision forming grinding machine tool based on ELID grinding

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US10232491B2 (en) * 2015-05-29 2019-03-19 Inland Diamond Products Company Retruing of a grinding wheel using EDM machine
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