CN110666637A - Horizontal double-spindle bearing ring grinding machine - Google Patents
Horizontal double-spindle bearing ring grinding machine Download PDFInfo
- Publication number
- CN110666637A CN110666637A CN201911045929.5A CN201911045929A CN110666637A CN 110666637 A CN110666637 A CN 110666637A CN 201911045929 A CN201911045929 A CN 201911045929A CN 110666637 A CN110666637 A CN 110666637A
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- China
- Prior art keywords
- grinding wheel
- main shaft
- spindle
- electric spark
- electric
- 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.)
- Pending
Links
- 238000010892 electric spark Methods 0.000 claims abstract description 43
- 238000007493 shaping process Methods 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000005868 electrolysis reaction Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000001808 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000006011 modification reaction Methods 0.000 claims 1
- 230000000149 penetrating Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005296 abrasive Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- 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
- B24B41/06—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
Abstract
The invention relates to a horizontal double-spindle bearing ring grinding machine which comprises a machine body, an installation platform, a first spindle, a measuring device, a second spindle, an X-direction moving platform, an electromagnetic centerless fixture, an electric spark grinding wheel shaping device and an electric spark electrode shaping device, wherein the upper part of the machine body is fixedly provided with the horizontal installation platform through bolts; and the first main shaft and the second main shaft are both provided with an online electrolytic sharpening device. The invention can realize that the semi-finish grinding and the finish grinding of the bearing ring are finished under the condition of one-time clamping.
Description
Technical Field
The invention relates to bearing ring raceway processing equipment, in particular to a horizontal double-spindle bearing ring grinding machine.
Background
The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. In the operation process of mechanical equipment, especially in the operation process of some important equipment, the regular maintenance and replacement of bearings is a necessary means for ensuring the normal operation of the equipment, under some special conditions, the performance of the whole equipment is ensured, even the bearings of the same model on the equipment are required to be regularly and completely replaced, so that the service life of the bearings is required to be reasonably predicted, and when the service life of a whole batch of bearings is predicted, all indexes of the bearings of the same model in the whole batch have high consistency, so that the reasonable and effective prediction result can be ensured.
In the grinding processing of the bearing inner ring, the semi-fine grinding and the fine grinding processing of the inner ring raceway have a decisive role in ensuring the consistency of the inner ring raceway. The existing inner ring raceway grinding machine comprises a numerical control inner ring raceway grinding machine, a single main shaft machining mode is basically adopted, when the bearing ring is machined in batches, one machine corresponds to a certain fixed process, semi-fine grinding and fine grinding are separated, and therefore machining efficiency is high; however, when the consistency of the bearing inner ring raceway is reflected, due to the fact that clamping errors and errors between the size and the shape of the grinding head exist between different machine tools, even if qualified products are machined, some small differences inevitably exist, and therefore the consistency of the whole batch of products is affected.
At present, in the processing of the inner ring raceway in China, the processing mode of an automatic assembly line is adopted, but the semi-fine grinding process and the fine grinding process are also finished on different devices respectively, wherein the semi-fine grinding process and the fine grinding process are also finished by feeding and discharging twice and clamping twice, no matter how precise a clamping and positioning mechanism is, a certain positioning error still must exist in the secondary clamping process, the consistency of the surface appearance size of the inner ring raceway is poor, the inconsistent phenomenon cannot be thoroughly eliminated even if the clamping and positioning mechanism is super-precise, the integral quality of the assembled bearing is influenced, the integral consistency of the produced bearing is not good, and the prejudgment of the service life of the bearing is influenced.
Disclosure of Invention
The invention aims to provide a horizontal double-spindle bearing ring grinding machine, which is characterized in that by designing double grinding heads, a workpiece clamping mechanism capable of moving in two dimensions and a grinding wheel shaping mechanism capable of moving in two dimensions and adopting an electric spark grinding wheel dressing technology and a grinding head online electrolytic dressing technology, the semi-finish grinding and the finish grinding of a bearing inner ring raceway are completed under the condition of one-time clamping, so that the clamping error in the processing process of the bearing inner ring raceway can be reduced, meanwhile, the grinding heads of two procedures adopt the same dressing mechanism, and the dressed grinding heads have good consistency, so that products with more consistent processing sizes are obtained.
In order to achieve the purpose, the invention adopts the following technical scheme:
a horizontal double-spindle bearing ring grinding machine comprises a machine body, an installation platform, a first spindle, a measuring device, a second spindle, an X-direction moving platform, an electromagnetic centerless fixture, an electric spark grinding wheel shaping device and an electric spark electrode shaping device, wherein the upper part of the machine body is fixedly provided with the horizontal installation platform through bolts, one side of the X-direction shaft on the installation platform is provided with an X-direction parallel guide rail, an X-direction lead screw nut pair is arranged between the parallel guide rails, the X-direction moving platform is arranged on the parallel guide rails and runs on the parallel guide rails, the lower part of the X-direction moving platform is fixedly connected with a nut connecting plate of the X-direction lead screw nut pair, (the X-direction moving platform is respectively provided with a first Y-direction moving mechanism and a second Y-direction moving mechanism, the first Y-direction moving mechanism and the second Y-direction moving mechanism are respectively provided with a Y-direction carriage, the electromagnetic centerless fixture is arranged on the left side of the upper part of, the electric spark grinding wheel reshaping device is arranged on the right side of the upper part of the X-direction moving platform through a second Y-direction moving mechanism, the motor for driving the X-direction lead screw to rotate is arranged on the mounting platform at the right end of the X-direction lead screw, the first main shaft, the second main shaft and the electric spark electrode reshaping device are sequentially and horizontally arranged on the other side of the mounting platform in the X-direction from left to right, the measuring device is arranged between the first main shaft and the second main shaft, and the electric spark electrode reshaping device is arranged on the right side of the second main shaft; the grinding wheel electric spindle is fixedly mounted on the mounting platform through the spindle seat, a grinding wheel shaft coaxial with the grinding wheel electric spindle penetrates through the spindle box, the spindle box is arranged above the mounting platform through an insulating plate, one end of the grinding wheel shaft is insulated and fixedly connected with the output end of the grinding wheel electric spindle through the insulating coupling, the grinding wheel is mounted at the other end of the grinding wheel shaft, the grinding wheel is a metal bond diamond grinding wheel and is electrically connected with the positive electrode of a high-frequency pulse power supply, and the axes of the grinding wheel shafts of the first spindle and the second spindle are parallel and equal in height.
The first main shaft and the second main shaft are both provided with an online electrolytic dressing device, the online electrolytic dressing device comprises an X-axis moving mechanism, an insulating bracket, an electrolytic negative electrode and an electrolytic spray head, 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 the axle box, the linear motor is arranged at one end of the upper surface of the mounting seat, the guide rail is arranged at the other end of the upper surface of the mounting seat, the movable plate is driven by a linear motor and runs on a guide rail, the upper end of the insulating bracket is fixedly connected with the movable plate, the lower end of the insulating bracket is provided with an electrolytic negative electrode, the electrolysis negative electrode is integrally an arc-shaped plate made of red copper, is coaxially arranged at one side of the grinding wheel shaft and is connected with the negative electrode of the high-frequency pulse power supply, the electrolytic sprayer for spraying the electrolyte penetrates through the lower end of the insulating support, and an outlet of the electrolytic sprayer 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 nozzle, wherein the electrode electric spindle is installed on a dragging plate of the second Y-direction moving mechanism through a fixed support, the electric spark negative electrode made of red copper is installed at the output end of the electric spindle, the electric spark electrode is connected with the negative electrode of a high-frequency pulse power supply, and the electric spark nozzle used for spraying electric spark electrolyte is fixedly arranged above the electric spark negative electrode.
Measuring device include Z to displacement mechanism, Z to layer board, grating chi, measurement support and measuring head, Z is to displacement mechanism comprises standing arm, parallel guide, screw-nut pair and driving motor, and a standing arm side is provided with parallel guide, and screw-nut pair sets up between parallel guide, and driving motor sets up on standing the arm top and through the screw connection of reduction gears with screw-nut pair, Z links to each other and operates on parallel guide to the nut connecting plate of layer board and screw-nut pair admittedly, the measuring head sets up on measurement support, and measurement support links firmly on Z to the layer board and lies in standing arm towards X moving platform's one side, and grating chi's scale grating is fixed to be set up at standing arm opposite side, and grating chi's grating reading head links firmly through connecting plate and Z to the layer board.
The electromagnetic centerless fixture is arranged on a dragging plate of the first Y-direction displacement mechanism through a fixture base capable of horizontally adjusting the angle, and a motor for driving the centerless fixture to rotate is arranged above the fixture base through a motor base.
The electric spark electrode model modifying device comprises base, tool rest seat, knife rest and lathe tool, the base sets up on the right side of second main shaft, and its lower extreme links firmly with mounting platform, and its upper end is provided with the tool rest seat, and tool rest seat up end is provided with T type groove, and the knife rest passes through T type bolt and installs in the T type inslot of tool rest seat, the knife rest side set up the open slot that is used for holding the lathe tool, the lateral wall that the open slot is located knife rest upper portion is equipped with the fastening bolt that is used for pressing from both sides tight lathe tool.
The principle of the invention is as follows: by adopting the double main shafts, the semi-finish grinding and the finish grinding of the bearing ring can be completed 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 abrasive dust; the electric spark shaping device is used for shaping the grinding wheel, is matched with the online electrolytic dressing device and the measuring device, and has high shaping efficiency.
The invention has the beneficial effects that: the invention has simple and reasonable structure, can realize the completion of semi-finish grinding and finish grinding of the bearing ring under the condition of one-time clamping, has high processing efficiency, and can process products with high precision and good size consistency.
Drawings
Fig. 1 is a schematic view 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 from B-B in fig. 2.
Fig. 5 is a schematic view of the second spindle and its on-line electrolytic sharpening device.
Fig. 6 is a view of the second spindle and its on-line electrolytic sharpening device in the direction of a-a.
Fig. 7 is a schematic view of an insulating holder in an in-line electrolytic sharpening device.
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 the spark truing device.
Fig. 11 is a top view of an electromagnetic centerless fixture and an electric spark.
In the figure, 1, a lathe bed, 2, a mounting platform, 3, a first spindle, 4, a measuring device, 5, a second spindle, 6, an X-direction moving platform, 601, an X-direction parallel guide rail, 602, an X-direction lead screw nut pair, 603, a 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, 11 and an online electrolytic sharpening device are arranged;
402. z-direction supporting plates 403, a grating ruler 404, a measuring support 405, a measuring head 411, a vertical arm 412, a Z-direction parallel guide rail 413, a lead screw nut pair 414 and a driving motor;
501. grinding wheel electric spindle 502, spindle seat 503, grinding wheel shaft 504, insulation coupling 505, axle box 506 and grinding wheel;
701. a clamp seat;
801. an electric spark negative electrode 802, an electrode electric spindle 803, an electric spark spray head 804 and a fixed support;
901. a base, 902, a tool rest base, 903, a tool rest, 904 and a turning tool;
1102. the electrolytic cell comprises an insulating support, 1103, an electrolytic negative electrode, 1104, an electrolytic spray head, 1111, a mounting seat, 1112, a guide rail, 1113, a linear motor, 1114 and a moving plate.
Detailed Description
The invention is described in further detail below with reference to the drawings.
As shown in fig. 1 to 5, a horizontal double-spindle bearing ring grinding machine comprises a machine body 1, a mounting platform 2, a first spindle 3, a measuring device 4, a second spindle 5, an X-direction moving platform 6, an electromagnetic centerless fixture 7, an electric spark grinding wheel shaping device 8, an electric spark electrode shaping device 9 and a loading and unloading 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 upper surface of the mounting platform 2 in the X-axis direction is provided with an X-direction parallel guide rail 601, an X-direction lead screw nut pair 602 is arranged between the parallel guide rails 601, the X-direction moving platform 6 is arranged on the parallel guide rails 601 and runs on the parallel guide rails 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, a Y-direction planker is respectively arranged on a first Y-direction moving mechanism 604 and a second Y-direction moving mechanism 605, an electromagnetic centerless fixture 7 is arranged on the left side of the upper part of an X-direction moving platform 6 through the first Y-direction moving mechanism 604, an electric spark grinding wheel shaping device 8 is arranged on the right side of the upper part of the X-direction moving platform 6 through the second Y-direction moving mechanism 605, a motor 603 used for driving an X-direction lead screw to rotate is arranged on an installation platform 2 at one end of the X-direction lead screw, a first spindle 3, a second spindle 5 and an electric spark electrode shaping device 9 are sequentially horizontally arranged on the other axial side of the installation platform 2 from left to right, a 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 on the right side of the second spindle 5; the first spindle 3 and the second spindle 5 are respectively composed of a grinding wheel electric spindle 501, a spindle seat 502, a grinding wheel spindle 503, an insulating coupling 504 and an axle box 505, wherein the grinding wheel electric spindle 501 is fixedly mounted on the mounting platform 2 through the spindle seat 502, the grinding wheel spindle 503 coaxial with the grinding wheel electric spindle 501 penetrates through the axle box 505, the axle box 505 is arranged above the mounting platform through an insulating plate, one end of the grinding wheel spindle 503 is insulated and fixedly connected with the output end of the grinding wheel electric spindle 501 through the insulating coupling 504, the grinding wheel 506 is mounted at the other end of the grinding wheel spindle 503, the grinding wheel 506 is a metal bond diamond grinding wheel, the grinding wheel 506 is electrically connected with a positive pole of a high-frequency pulse power supply, and the axes of the grinding wheel spindles 503 of the first spindle 3 and the second spindle 5 are.
As shown in fig. 5, 6 and 7, the first spindle 3 and the second spindle 5 are both provided with an online electrolytic sharpening device 11, the online electrolytic sharpening device 11 includes 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 is composed of an installation seat 1111, a guide rail 1112, a linear motor 1113 and a moving plate 1114, the installation seat 1111 is fixedly disposed at the upper end of the axle box 505, the linear motor 1113 is disposed at one end of the installation seat 1111, the guide rail 1112 is disposed at the other end, 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 lower end of the insulating support is provided with the electrolytic negative electrode 1103 is an arc plate made of red copper as a whole, the electrolytic negative electrode 1103 is coaxially disposed at one side of the grinding wheel axle 503 and connected with the negative, the electrolytic spray nozzle 1104 for spraying the electrolyte penetrates through the lower end of the insulating bracket 1102, and the outlet of the electrolytic spray nozzle 1104 is positioned between the electrolytic negative electrode 1103 and the grinding wheel 506.
As shown in fig. 2, 4, 10 and 11, the spark grinding wheel truing device 8 includes a spark negative electrode 801, an electrode electric spindle 802 and a spark nozzle 803, the electrode electric spindle 801 is mounted on the carriage of the second Y-direction moving mechanism 605 through a fixing support 804, the spark negative electrode 801 made of red copper is mounted at the output end of the electrode electric spindle 802, the spark electrode 801 is connected with the negative electrode of the high-frequency pulse power supply, and the spark nozzle 803 for spraying spark electrolyte is fixedly disposed above the spark negative electrode 801.
As shown in fig. 2, 3, 8 and 9, the measuring device 4 includes a Z-direction displacement mechanism, a Z-direction supporting plate 402, a grating scale 403, a measuring bracket 404 and a measuring head 405, the Z-direction displacement mechanism consists of a vertical arm 411, a parallel guide rail 412, a lead screw nut pair 413 and a driving motor 414, wherein one side surface of the vertical arm 411 is provided with the parallel guide rail 412, the lead screw nut pair 413 is arranged between the parallel guide rails 412, the driving motor 414 is arranged at the top end of the vertical arm 411 and is connected with a lead screw of the 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 a lead screw nut pair 413 and runs on a parallel guide rail 412, the measuring head 405 is arranged on the measuring support 404, the measuring support 404 is fixedly connected to the Z-direction support plate 402 and is located on one side of the vertical arm 411 facing the X-direction moving platform 6, the scale grating of the grating scale 403 is fixedly arranged on the other side of the vertical arm 411, and the grating reading head of the grating scale 403 is fixedly connected with the Z-direction support plate 402 through a connecting plate.
As shown in fig. 2, 4 and 11, the electromagnetic centerless clamp 7 is disposed on the carriage of the first Y-directional displacement mechanism 604 through a clamp base 701 capable of horizontally adjusting an angle, and a motor for driving the centerless clamp to rotate is disposed above the clamp base 701 through a motor base.
As shown in fig. 2, 5, 6, and 7, the electric spark electrode shaping apparatus 9 is composed of a base 901, a tool holder seat 902, a tool holder 903, and a turning tool 904, wherein the base 901 is disposed on the right side of the second spindle 5, the lower end of the base 901 is fixedly connected to the mounting platform 2, the upper end of the base 902 is provided with the tool holder seat 902, the upper end surface of the tool holder seat 902 is provided with a T-shaped groove, the tool holder 903 is mounted in the T-shaped groove of the tool holder seat 902 through a T-shaped bolt, the side surface of the tool holder 903 is provided with an open slot for accommodating the turning tool 904, and the side wall of the open slot located at.
The present invention is not described in detail in the prior art.
Claims (5)
1. The utility model provides a horizontal two main shaft bearing ring grinding machines, includes lathe bed (1), mounting platform (2), first main shaft (3), measuring device (4), second main shaft (5), X to moving platform (6), electromagnetism centerless anchor clamps (7), electric spark emery wheel shaping device (8) and electric spark electrode modification device (9), lathe bed (1) upper portion be provided with horizontally mounting platform (2) through bolt fastening, X axial one side is provided with X to parallel guide rail (601) above mounting platform (2), be provided with X between parallel guide rail (601) and to screw nut pair (602), X to moving platform (6) set up on parallel guide rail (601) and move on parallel guide rail (601), X links firmly characterized by to the nut connecting plate of screw nut pair (602) with X to the lower part of moving platform (6): 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 centerless fixture (7) is arranged on 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 on the right side of the upper part of the X-direction moving platform (6) through the second Y-direction moving mechanism (605), the motor (603) for driving the X-direction lead screw to rotate is arranged on the mounting platform (2) at one end of the X-direction lead screw, the first main shaft (3), the second main shaft (5) and the electric spark electrode shaping device (9) are sequentially and horizontally arranged on the other side of the X-direction axial direction of the mounting platform (2) from left to right, the measuring device (4) is arranged between the first main shaft (3) and the, the electric spark electrode shaping device (9) is arranged on the right side of the second main shaft (5); the first main shaft (3) and the second main shaft (5) are respectively composed of a grinding wheel electric main shaft (501), a main shaft seat (502), a grinding wheel shaft (503), an insulating coupling (504) and an axle box (505), wherein the grinding wheel electric spindle (501) is fixedly arranged on the mounting platform (2) through a spindle seat (502), a grinding wheel shaft (503) which is coaxial with the grinding wheel electric spindle (501) is arranged in an 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 spindle (501) through an insulating coupling (504), the other end of the grinding wheel shaft (503) is provided with a grinding wheel (506), the grinding wheel (506) is a metal bond diamond grinding wheel, the grinding wheel (506) is electrically connected with the anode of the high-frequency pulse power supply, 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;
all be provided with online electrolysis sharpening device (11) on first main shaft (3), second main shaft (5), online electrolysis sharpening device (11) include X axle moving mechanism, insulating support (1102), electrolysis negative electrode (1103) and electrolysis shower nozzle (1104), X axle moving mechanism comprises mount pad (1111), guide rail (1112), linear electric motor (1113) and movable plate (1114), mount pad (1111) is fixed to be set up in the upper end of axle box (505), one end is provided with linear electric motor (1113) above mount pad (1111), the other end is provided with guide rail (1112), movable plate (1114) are driven by linear electric motor (1113) and are moved on guide rail (1112), insulating support (1102) upper end links firmly with movable plate (1114), the lower extreme is provided with electrolysis negative electrode (1103), electrolysis negative electrode (1103) wholly is the arc board that red copper made, the electrolytic negative electrode (1103) is coaxially arranged on one side of the grinding wheel shaft (503) and connected with the negative electrode of the high-frequency pulse power supply, the electrolytic spray head (1104) for spraying electrolyte penetrates through the lower end of the insulating support (1102), and the outlet of the electrolytic spray head (1104) is positioned between the electrolytic negative electrode (1103) and the grinding wheel (506).
2. The horizontal double-spindle bearing ring grinding machine as claimed in claim 1, wherein: the electric spark grinding wheel reshaping 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 (801) is installed on a dragging plate of the second Y-direction moving mechanism (605) through a fixed support (804), the electric spark negative electrode (801) made of red copper is installed at the output end of the electrode electric spindle (802), the electric spark 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).
3. The horizontal double-spindle bearing ring grinding machine as claimed in 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 support (404) and a measuring head (405), wherein the Z-direction displacement mechanism consists of a vertical arm (411), parallel guide rails (412), a lead screw nut pair (413) and a driving motor (414), one side surface of the vertical arm (411) is provided with the parallel guide rails (412), the lead screw nut pair (413) is arranged between the parallel guide rails (412), the driving motor (414) is arranged at the top end of the vertical arm (411) and is connected with a lead screw of the 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 lead screw nut pair (413) and runs on the parallel guide rails (412), the measuring head (405) is fixedly connected on the measuring support (404), the measuring support (404) is arranged on the Z-direction supporting plate (402) and is positioned on one side of the vertical arm (411) facing the X-, and a scale 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 supporting plate (402) through a connecting plate.
4. The horizontal double-spindle bearing ring grinding machine as claimed in claim 1, wherein: the electromagnetic centerless clamp (7) is arranged on a carriage of the first Y-direction displacement mechanism (604) through a clamp seat (701) with a horizontally adjustable angle, and a motor for driving the centerless clamp to rotate is arranged above the clamp seat (701) through a motor seat.
5. The horizontal double-spindle bearing ring grinding machine as claimed in claim 1, wherein: the electric spark electrode shaping device (9) is composed of 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), a T-shaped groove is formed in the upper end face of the tool rest seat (902), the tool rest (903) is mounted in the T-shaped groove of the tool rest seat (902) through a T-shaped bolt, an open groove used for containing the turning tool (904) is formed in the side face of the tool rest (903), and a fastening bolt used for clamping the turning tool (904) is arranged on the side wall of the upper portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045929.5A CN110666637A (en) | 2019-10-30 | 2019-10-30 | Horizontal double-spindle bearing ring grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045929.5A CN110666637A (en) | 2019-10-30 | 2019-10-30 | Horizontal double-spindle bearing ring grinding machine |
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| Publication Number | Publication Date |
|---|---|
| CN110666637A true CN110666637A (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911045929.5A Pending CN110666637A (en) | 2019-10-30 | 2019-10-30 | Horizontal double-spindle bearing ring grinding machine |
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| CN (1) | CN110666637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113263371A (en) * | 2021-05-18 | 2021-08-17 | 河南科技大学 | High-precision bearing polishing device |
| CN114273997B (en) * | 2021-12-02 | 2022-08-23 | 杭州明宇液压技术有限公司 | Automatic change valve block production and use processing equipment |
-
2019
- 2019-10-30 CN CN201911045929.5A patent/CN110666637A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113263371A (en) * | 2021-05-18 | 2021-08-17 | 河南科技大学 | High-precision bearing polishing device |
| CN114273997B (en) * | 2021-12-02 | 2022-08-23 | 杭州明宇液压技术有限公司 | Automatic change valve block production and use processing equipment |
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