CN112318361A - High-precision plane grinding machine - Google Patents
High-precision plane grinding machine Download PDFInfo
- Publication number
- CN112318361A CN112318361A CN202011337036.0A CN202011337036A CN112318361A CN 112318361 A CN112318361 A CN 112318361A CN 202011337036 A CN202011337036 A CN 202011337036A CN 112318361 A CN112318361 A CN 112318361A
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- precision
- grinding
- grinder
- main shaft
- shaft assembly
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- 238000000227 grinding Methods 0.000 title claims abstract description 96
- 230000020347 spindle assembly Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 2
- 230000002706 hydrostatic effect Effects 0.000 claims 4
- 238000003754 machining Methods 0.000 abstract description 5
- 230000003746 surface roughness Effects 0.000 abstract description 4
- 239000004570 mortar (masonry) Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000003068 static effect Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B24B37/00—Lapping machines or devices; Accessories
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention relates to the technical field of machining equipment, in particular to a high-precision plane grinding machine; the technical scheme is as follows: the utility model provides a high accuracy plane grinding machine, includes the organism, be equipped with main shaft assembly, Z axle subassembly, rotary worktable on the organism, main shaft assembly is by the vertical removal of Z axle subassembly drive, the main shaft assembly below is connected with the bedding and mortar dish, still be equipped with the X axle subassembly on the organism, the X axle subassembly is used for driving rotary worktable lateral shifting. The automatic grinding machine can automatically grind disc parts to replace manual grinding, greatly lightens the labor intensity of operators, improves the grinding quality, has high grinding speed, greatly improves the grinding efficiency, and can achieve extremely high form and position precision and surface roughness.
Description
Technical Field
The invention relates to the technical field of machining equipment, in particular to a high-precision plane grinding machine.
Background
In the field of ultra-precision machining, precision grinding is often used as a final machining means for machining high-precision parts. At present, the manual grinding method is still adopted for the large and heavy disc parts. The manual grinding process usually adopts three grinders or a mode that workpieces are mutually ground, the manual grinding process needs to grind the workpieces and other three grinders, and the labor intensity of the grinding work is high; in addition, the rotating speed of the manual grinding tool is low, the surface hardness of the workpiece is high, and the removal amount of the manual grinding workpiece is low; therefore, when the existing grinding machine is used for grinding large and heavy disc parts, the grinding time is long, and the labor intensity is high.
Disclosure of Invention
Aiming at the technical problems of long grinding time and high labor intensity when the existing large and heavy disc parts are ground; the invention provides a high-precision plane grinding machine which can automatically grind disc parts to replace manual grinding, greatly lightens the labor intensity of operators, improves the grinding quality, has high grinding speed and greatly improves the grinding efficiency.
The invention is realized by the following technical scheme:
the utility model provides a high accuracy plane grinding machine, includes the organism, be equipped with main shaft assembly, Z axle subassembly, rotary worktable on the organism, main shaft assembly is by the vertical removal of Z axle subassembly drive, the main shaft assembly below is connected with the bedding and mortar dish, still be equipped with the X axle subassembly on the organism, the X axle subassembly is used for driving rotary worktable lateral shifting.
When the grinding tool is used, a workpiece to be ground is fixed on the rotary worktable, and the grinding tool is fixed on the grinding tool disk, so that the main shaft assembly is driven by the Z shaft assembly to move up and down, and the vertical positioning of the grinding tool is realized; the main shaft of the main shaft assembly drives the grinding disc to rotate so as to drive the grinding tool to rotate, and the workpiece to be ground is driven to rotate through the rotary worktable, namely the grinding disc and the workpiece respectively rotate around respective central shafts. Meanwhile, the X axis drives the workpiece to do linear motion, so that the eccentricity offset of the planetary grinding track is realized, and the grinding processing track is formed. Therefore, the automatic grinding machine can automatically grind disc parts to replace manual grinding, greatly lightens the labor intensity of operators, improves the grinding quality, has high grinding speed, greatly improves the grinding efficiency, and can achieve extremely high form and position precision and surface roughness.
In order to ensure the operating straightness of the rotary worktable, the X-axis assembly is supported by a high-precision guide rail.
Specifically, the high-precision guide rail is one of a gas static pressure guide rail, a liquid static pressure guide rail and a linear guide rail.
For guaranteeing the flatness of the rotary table during operation, the rotary table is supported by a high-precision bearing, so that the rotary table is not only a grinding platform, but also can be used as a high-precision platform for online detection, the grinding workpiece is not required to be repeatedly carried and disassembled and assembled, the detection time in the grinding process can be shortened, and the grinding efficiency is further improved.
Specifically, the high-precision bearing is one of a gas static pressure support, a liquid static pressure support and a dense ball sliding sleeve.
Specifically, the rotary worktable is driven by a torque motor, and the torque motor is electrically connected with a rotary encoder, so that the rotary worktable has an angle positioning function, and local repairing and grinding of workpieces can be realized.
Preferably, the grinding tool disc is in floating connection with the spindle assembly through the connecting portion, so that the grinding tool disc of a workpiece is prevented from being stuck in a rapid grinding process, displacement of a grinding track is realized, and grinding precision can be ensured.
As a specific implementation manner of the floating connection between the grinding tool disk and the spindle assembly, the connecting portion is fixedly connected with the spindle assembly, a strip hole for the connecting pin to pass through is arranged on the connecting portion or the grinding tool disk, and the strip hole is vertically arranged so as to realize the floating connection of the connecting portion through the matching of the connecting pin and the strip hole.
As an embodiment of the connection part and the grinding disc drive, the connection part and the grinding disc drive by a toothed drive.
The invention has the beneficial effects that:
1. according to the invention, the main shaft assembly is driven by the Z shaft assembly to move up and down, the rotary worktable drives the workpiece to be ground to rotate, and the X shaft drives the workpiece to perform linear motion, so that the eccentricity offset of a planetary grinding track is realized, and a grinding processing track is formed; the automatic grinding machine can automatically grind disc parts to replace manual grinding, greatly lightens the labor intensity of operators, improves the grinding quality, has high grinding speed, greatly improves the grinding efficiency, and can achieve extremely high form and position precision and surface roughness;
2. the rotary worktable is supported by the high-precision bearing, and the flatness of the rotary worktable during operation can be ensured, so that the rotary worktable not only can be a grinding platform, but also can be used as a high-precision platform for online detection, the grinding workpiece does not need to be repeatedly carried, disassembled and assembled, the detection time in the grinding process can be shortened, and the grinding efficiency is further improved;
3. the rotary worktable is driven by the torque motor, and the torque motor is electrically connected with the rotary encoder, so that the rotary worktable has an angle positioning function and can realize local repair and grinding of workpieces;
4. the grinding tool disc is in floating connection with the main shaft assembly through the connecting part, so that the grinding tool disc of a workpiece is prevented from being clamped in the rapid grinding process, the grinding track is shifted, and the grinding precision can be ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic perspective view of the present invention.
Reference numbers and corresponding part names in the drawings:
the grinding machine comprises a machine body, a main shaft assembly 2, a 3-Z shaft assembly, a rotary worktable 4, a grinding disc 5, an X shaft assembly 6 and a connecting part 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
The utility model provides a high accuracy plane grinding machine, includes organism 1, be equipped with main shaft assembly 2, Z axle subassembly 3, rotary worktable 4 on the organism 1, main shaft assembly 2 is by the vertical removal of 3 drive of Z axle subassemblies, 2 below of main shaft assembly are connected with bedding and milling dish 5, still be equipped with X axle subassembly 6 on the organism 1, X axle subassembly 6 is used for driving 4 lateral shifting of rotary worktable.
Specifically with reference to fig. 1:
in order to ensure the operating straightness of the rotary table 4, the X-axis assembly 6 is supported by a high-precision guide rail; the high-precision guide rail is one of a gas static pressure guide rail, a liquid static pressure guide rail and a linear guide rail. In this embodiment, the X-axis assembly 6 is supported by an air-floating guide rail, and the X-axis assembly drives the roller screw through a motor to drive the slider to move, so as to realize the X-axis movement.
The rotary worktable 4 is arranged on a sliding block of the X-axis assembly 6 through a bolt, the rotary worktable 4 is supported by a high-precision bearing, and the high-precision bearing is one of a gas static pressure support, a liquid static pressure support and a dense ball sliding sleeve. The flatness of the rotary table 4 during operation is guaranteed, so that the rotary table 4 can be not only a grinding platform but also a high-precision platform for online detection, repeated carrying and dismounting of a grinding workpiece are not needed, the detection time in the grinding process can be shortened, and the grinding efficiency is further improved.
Meanwhile, the rotary worktable 4 is driven by a torque motor, the rotary worktable 4 is driven by the torque motor, and the torque motor is electrically connected with a rotary encoder. The rotary encoder is adopted to detect the phase of the workbench, so that the C-axis indexing function of the workbench can be realized, the rotary workbench 4 has an angle positioning function, and the local repairing and grinding of workpieces can be realized.
The stand among the Z axle subassembly 3 passes through the bolt and is connected with organism 1, and Z axle subassembly 3 adopts linear guide rail in this example, drives screw nut through the motor and realizes the Z axle motion.
Wherein main shaft assembly 2 is connected with Z axle subassembly 3 through the headstock, and main shaft assembly 2 adopts tapered roller bearing to support, drives the hold-in range through servo motor and drives, realizes the gyration of main shaft.
Preferably, the grinding tool disk 5 is in floating connection with the spindle assembly 2 through a connecting part 7, so that the grinding tool disk 5 of a workpiece is prevented from being stuck in a rapid grinding process, the displacement of a grinding track is realized, and the grinding precision can be ensured.
As a specific embodiment of the floating connection between the grinding tool disk 5 and the spindle assembly 2, the connecting portion 7 is fixedly connected to the spindle assembly 2, and the connecting portion 7 or the grinding tool disk 5 is provided with a strip hole for the connecting pin to pass through, and the strip hole is vertically arranged to realize the floating connection of the connecting portion 7 through the matching of the connecting pin and the strip hole.
As an embodiment of the transmission of the connecting part 7 with the lap disc 5, the connecting part 7 and the lap disc 5 are transmitted by a toothed transmission.
The working principle of the embodiment is as follows:
the plane grinder of the embodiment can control the rotating speed of the rotary table 4, the rotating speed of the main shaft assembly 2 and the eccentricity; meanwhile, the technological parameters of grinding processing can be determined through tests, and the thrust disc of the high-precision turntable is used as a test object.
During rough grinding, the main shaft assembly 2 realizes autorotation of the grinding tool, the rotary worktable 4 realizes autorotation of workpieces, the X shaft assembly 6 realizes eccentricity offset of a planetary grinding track, and the Z shaft assembly 3 realizes up-and-down positioning of the grinding tool. The grinding track is changed by controlling the rotating speed of the main shaft component 2, the rotating speed of the rotary worktable 4 and the offset of the X-axis component 6 so as to change the irregular change of the eccentric distance, thereby leading the grinding processing track of each point on the surface of the workpiece to have time-varying property.
In the lapping process, the rotary worktable 4 is used as a detection platform, the electronic level meter detects the height point of a workpiece, and after the rotary worktable 4 determines a grinding phase, the spindle assembly 2 carries out fixed-point lapping on the height point, so that high form and position precision and surface roughness are achieved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a high accuracy plane grinding machine, includes organism (1), be equipped with main shaft assembly (2), Z axle subassembly (3), rotary worktable (4) on organism (1), main shaft assembly (2) are by the vertical removal of Z axle subassembly (3) drive, main shaft assembly (2) below is connected with bedding and milling dish (5), its characterized in that, still be equipped with X axle subassembly (6) on organism (1), X axle subassembly (6) are used for driving rotary worktable (4) lateral shifting.
2. A high-precision surface grinder as claimed in claim 1, characterised in that the X-axis assembly (6) is supported with high-precision guide rails.
3. A high-precision surface grinder according to claim 2, wherein the high-precision guide is one of a gas hydrostatic guide, a liquid hydrostatic guide, and a linear guide.
4. A high-precision surface grinder according to claim 1, characterised in that the rotary table (4) is supported with high-precision bearings.
5. The high-precision flat grinder of claim 4, wherein the high-precision bearing is one of a gas hydrostatic support, a liquid hydrostatic support, and a dense ball sliding sleeve.
6. A high-precision surface grinder as claimed in claim 1, characterised in that the rotary table (4) is driven by a torque motor, which is electrically connected with a rotary encoder.
7. A high precision flat grinder as claimed in claim 1, characterised in that the grinder disc (5) is floatingly connected to the spindle assembly (2) by means of a connection (7).
8. A high-precision plane grinder as claimed in claim 7, wherein the connecting part (7) is fixedly connected with the spindle assembly (2), and the connecting part (7) or the grinder plate (5) is provided with a long hole for the connecting pin to pass through, the long hole is vertically arranged to realize the floating connection of the connecting part (7) through the cooperation of the connecting pin and the long hole.
9. A high-precision surface grinder as claimed in claim 7, characterised in that the connection (7) and the grinder disc (5) are driven by a toothed drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011337036.0A CN112318361A (en) | 2020-11-25 | 2020-11-25 | High-precision plane grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011337036.0A CN112318361A (en) | 2020-11-25 | 2020-11-25 | High-precision plane grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112318361A true CN112318361A (en) | 2021-02-05 |
Family
ID=74309521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011337036.0A Withdrawn CN112318361A (en) | 2020-11-25 | 2020-11-25 | High-precision plane grinding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN112318361A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814818A (en) * | 2021-10-18 | 2021-12-21 | 中国科学院光电技术研究所 | Vertical precision grinding device to high accuracy hole |
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| JPH09193008A (en) * | 1996-01-17 | 1997-07-29 | Sony Corp | Flattening and polishing device and method thereof |
| CN1490125A (en) * | 2003-08-22 | 2004-04-21 | 中国人民解放军国防科学技术大学 | Non-spherical optical component composite machining and testing machine tools |
| CN102145475A (en) * | 2011-01-21 | 2011-08-10 | 湖南大学 | Ball crusher with double-rotor hydrostatic bearing structure |
| CN103962934A (en) * | 2013-01-25 | 2014-08-06 | 上海浦东汉威阀门有限公司 | Valve sealing surface grinding miller |
| CN105643428A (en) * | 2016-01-08 | 2016-06-08 | 湖南大学 | Grinding and polishing method using revolving elastomer |
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| TWM546285U (en) * | 2017-05-03 | 2017-08-01 | Supertec Machinery Inc | Vertical grinding machine |
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| CN111975470A (en) * | 2020-09-07 | 2020-11-24 | 大连三协精密模具有限公司 | Brake plate, machining process of working surface of brake plate and grinding machine tool used in machining process |
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-
2020
- 2020-11-25 CN CN202011337036.0A patent/CN112318361A/en not_active Withdrawn
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|---|---|---|---|---|
| JPH09193008A (en) * | 1996-01-17 | 1997-07-29 | Sony Corp | Flattening and polishing device and method thereof |
| CN1490125A (en) * | 2003-08-22 | 2004-04-21 | 中国人民解放军国防科学技术大学 | Non-spherical optical component composite machining and testing machine tools |
| CN102145475A (en) * | 2011-01-21 | 2011-08-10 | 湖南大学 | Ball crusher with double-rotor hydrostatic bearing structure |
| CN103962934A (en) * | 2013-01-25 | 2014-08-06 | 上海浦东汉威阀门有限公司 | Valve sealing surface grinding miller |
| JP2017013139A (en) * | 2015-06-26 | 2017-01-19 | 株式会社ディスコ | Cmp polishing device and cmp polishing method |
| CN105643428A (en) * | 2016-01-08 | 2016-06-08 | 湖南大学 | Grinding and polishing method using revolving elastomer |
| TWM546285U (en) * | 2017-05-03 | 2017-08-01 | Supertec Machinery Inc | Vertical grinding machine |
| CN207757434U (en) * | 2017-11-27 | 2018-08-24 | 朱益成 | The fine-tuning grinder of tailstock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814818A (en) * | 2021-10-18 | 2021-12-21 | 中国科学院光电技术研究所 | Vertical precision grinding device to high accuracy hole |
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Application publication date: 20210205 |
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