CN112605732B - Ultra-precise internal and external circular compound grinding machine with static pressure tailstock combined - Google Patents
Ultra-precise internal and external circular compound grinding machine with static pressure tailstock combined Download PDFInfo
- Publication number
- CN112605732B CN112605732B CN202011602197.8A CN202011602197A CN112605732B CN 112605732 B CN112605732 B CN 112605732B CN 202011602197 A CN202011602197 A CN 202011602197A CN 112605732 B CN112605732 B CN 112605732B
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- static pressure
- pressure tailstock
- guide rail
- tailstock
- grinding machine
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- 230000003068 static effect Effects 0.000 title claims abstract description 89
- 150000001875 compounds Chemical class 0.000 title claims abstract description 31
- 238000003754 machining Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000006467 substitution reaction 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/12—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces both externally and internally with several grinding wheels
-
- 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
- B24B41/02—Frames; Beds; Carriages
-
- 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
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/14—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding conical surfaces, e.g. of centres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—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 discloses an ultra-precise inner and outer circle compound grinding machine with a static pressure tailstock, which comprises a Z-direction guide rail and an X-direction guide rail, wherein a Z-direction slide plate is arranged on the Z-direction guide rail, a workpiece main shaft and the static pressure tailstock are arranged on the Z-direction slide plate, an X-direction sliding table is arranged on the X-direction guide rail, a rotary platform is arranged on the X-direction sliding table, a stand column is arranged on the rotary platform, the static pressure tailstock and the workpiece main shaft are oppositely arranged, the bottom of the static pressure tailstock is arranged on a W-direction slide plate, a W-direction guide rail is arranged between the W-direction slide plate and the Z-direction slide plate, and the W-direction slide plate is detachably arranged relative to the Z-direction slide plate. The workpiece spindle is arranged on the Z-direction guide rail to clamp the workpiece, the other end of the static pressure tailstock which is detachably arranged is propped against the other end of the workpiece to enhance the stability of clamping the workpiece, the static pressure tailstock is propped against to carry out excircle processing, and the inner hole can be processed by disassembling the static pressure tailstock, so that the workpiece spindle is applicable to inner hole and excircle processing of workpieces with any size, and the machining precision can be effectively improved.
Description
Technical Field
The invention belongs to the field of machining equipment, and particularly relates to an ultra-precise internal and external round compound grinding machine with a static pressure tailstock.
Background
The existing excircle inner hole processing equipment is convenient to process parts with smaller length and larger rigidity by changing processing tools arranged on the same tool bit assembly to switch and process the inner hole and the excircle after the workpiece is clamped by the workpiece main shaft, and deformation of the workpiece cannot be generated in the inner hole and the excircle processing process.
However, for workpieces with a large length or relatively poor rigidity, the machining precision of such devices is not high enough, and particularly, the use of such devices is limited when machining conditions with taper requirements for outer circle machining are required.
Disclosure of Invention
The invention mainly aims to provide an ultra-precise internal and external circle compound grinding machine with a static pressure tailstock combined, which can effectively improve the machining precision of an external circle inner hole of a workpiece.
According to the embodiment of the first aspect of the invention, the ultra-precise inner and outer circle compound grinding machine with the static pressure tailstock is provided, the ultra-precise inner and outer circle compound grinding machine comprises a Z-direction guide rail and an X-direction guide rail which are arranged on a machining surface of a machine tool, a Z-direction slide plate is arranged on the Z-direction guide rail, a workpiece spindle and the static pressure tailstock are arranged on the Z-direction slide plate, an X-direction sliding table is arranged on the X-direction guide rail, a rotary platform is arranged on the X-direction sliding table, a stand column is arranged on the rotary platform, an outer circle grinding wheel and an inner hole grinding wheel are respectively arranged at two ends of the stand column, the axes of the outer circle grinding wheel and the inner hole grinding wheel are perpendicular to a rotating shaft of the rotary platform, the static pressure tailstock and the workpiece spindle are arranged in opposite directions, the bottom of the static pressure tailstock is arranged on a W-direction slide plate, a W-direction guide rail which is parallel to the Z-direction tape is arranged between the W-direction slide plate and the Z-direction slide plate, the W-direction slide plate is detachably arranged opposite to the Z-direction slide plate, and the end of the static pressure tailstock is provided with a thimble.
One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:
the ultra-precise inner and outer circle compound grinding machine with the static pressure tailstock combined is characterized in that a workpiece spindle is arranged on a Z-direction guide rail to clamp a workpiece, the other end of the static pressure tailstock which is detachably installed is propped against the other end of the workpiece to enhance the stability of workpiece clamping, the static pressure tailstock is propped against to conduct outer circle machining, the static pressure tailstock is disassembled to conduct inner hole machining, and the machine tool is applicable to inner hole and outer circle machining of workpieces of any size and can effectively improve machining precision.
According to the ultra-precise internal and external circle compound grinding machine with the static pressure tailstock combined, which is disclosed by the embodiment of the first aspect of the invention, a second guide rail is paved on the W-direction sliding plate, and the second guide rail is obliquely arranged relative to the Z-direction.
According to the ultra-precise internal and external circle compound grinding machine with the static pressure tailstock combination, which is an embodiment of the first aspect of the invention, the second guide rail comprises two crossed ball guide rails which are paved in parallel, and the inclination of the second guide rail along the Z direction is 1/100.
According to the ultra-precise internal and external circular compound grinding machine with the combined static pressure tailstock, which is disclosed by the embodiment of the first aspect of the invention, a Z-direction sliding groove is formed in the bottom of the W-direction sliding plate, and the W-direction sliding plate is detachably arranged relative to the Z-direction guide rail.
According to the ultra-precise internal and external round compound grinding machine with the static pressure tailstock combination, which is provided by the embodiment of the first aspect of the invention, the grinding machine is further provided with a tailstock fine adjustment structure, and the tailstock fine adjustment structure drives the static pressure tailstock to move along the second guide rail so as to adjust the machining angle of a workpiece.
According to the ultra-precise internal and external circular compound grinding machine with the static pressure tailstock combination, the tailstock fine adjustment structure comprises a threaded connecting piece arranged at one end of the static pressure tailstock, the threaded connecting piece rotates to drive a sliding block connected with the static pressure tailstock to move, a pressure spring is arranged between the other end of the static pressure tailstock and the W-direction sliding plate, and a spiral adjusting button is connected to the end portion of the threaded connecting piece in an extending mode.
According to the ultra-precise internal and external circle compound grinding machine with the combination of the static pressure tailstock, which is an embodiment of the first aspect of the invention, the screw pitch of the threaded connecting piece is 1mm, and the circumference of the spiral adjusting button is equally divided into 100-grid graduations.
According to the ultra-precise internal and external circle compound grinding machine with the static pressure tailstock combined, the rotating shafts of the external circle grinding wheel and the inner hole grinding wheel are arranged in parallel.
According to the ultra-precise internal and external circle compound grinding machine with the combined static pressure tailstock, which is provided by the embodiment of the first aspect of the invention, an X-axis screw rod assembly for driving the W-direction sliding plate and the workpiece spindle to move along the Z direction is arranged on the Z-direction guide rail.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1is a schematic overall structure of a first embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the static pressure tailstock according to the first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a static tailstock according to a first embodiment of the present invention;
Fig. 4 is a schematic bottom structure of a static tailstock in the first embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection or an active connection, or it may be a detachable connection or a non-detachable connection, or it may be an integral connection; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements, indirect communication or interaction relationship between the two elements.
The following disclosure provides many different embodiments, or examples, for implementing different aspects of the invention.
Referring to fig. 1 to 4, there is provided an ultra-precise internal and external circle compound grinder with combined static pressure tailstock, comprising a Z-guide rail 100 and an X-guide rail 200 which are arranged on a machining surface of a machine tool, wherein the Z-guide rail 100 is provided with a Z-direction slide plate 101, the Z-direction slide plate 101 is provided with a workpiece spindle 110 and a static pressure tailstock 120, the X-direction guide rail 200 is provided with an X-direction slide table 210, the X-direction slide table 210 is provided with a rotary platform 220, a stand column 230 is mounted on the rotary platform 220, two ends of the stand column 230 are respectively provided with an external grinding wheel 231 and an internal grinding wheel 232, the axes of the external grinding wheel 231 and the internal grinding wheel 232 are perpendicular to the rotation axis of the rotary platform 220, the static pressure tailstock 120 is arranged opposite to the workpiece spindle 110, the bottom of the static pressure tailstock 120 is mounted on a W-direction slide plate 122, a W-direction guide rail parallel to the Z-direction carried by the Z-direction slide plate 101 is arranged between the W-direction slide plate 122 and the Z-direction slide plate 101, the end of the static pressure tailstock is provided with a thimble 121.
The ultra-precise inner and outer circle compound grinding machine with the static pressure tailstock is characterized in that a workpiece spindle 110 is arranged on a Z-shaped guide rail 100 to clamp a workpiece, the other end of the static pressure tailstock 120 which is detachably installed is propped against the other end of the workpiece to enhance the stability of clamping the workpiece, the static pressure tailstock 120 is propped to carry out outer circle processing, the static pressure tailstock 120 is disassembled to carry out inner hole processing, and the ultra-precise inner and outer circle compound grinding machine is applicable to inner hole and outer circle processing of workpieces with any size and can effectively improve the processing precision.
In some embodiments of the present invention, the bottom of the static pressure tailstock 120 is provided with a W-direction sliding plate 122 that can slide along the Z-direction rail 100, and a second rail 123 is laid on the W-direction sliding plate 122, where the second rail 123 is disposed obliquely with respect to the Z-direction.
In some embodiments of the present invention, the second rail 123 comprises two parallel cross ball rails, the second rail 123 having a slope of 1/100 in the Z-direction.
In some embodiments of the present invention, a Z-direction chute is provided at the bottom of the W-direction slide plate 122, and the W-direction slide plate 122 is detachably mounted with respect to the Z-direction rail 100.
The standard components of the cross ball guide rail are easy to select and install, the cross ball guide rail is easy to replace after being damaged, the contact surface is not required to be scraped manually, and the accuracy of the W-direction sliding plate 122 can be ensured more permanently.
In some embodiments of the present invention, a tailstock fine adjustment structure is further provided, and the tailstock fine adjustment structure drives the static pressure tailstock 120 to move along the second guide rail 123 to adjust the machining angle of the workpiece.
In some embodiments of the present invention, the tailstock fine tuning structure includes a threaded connection member 124 disposed at one end of the static pressure tailstock 120, the threaded connection member 124 rotates to drive a slider 126 connected to the static pressure tailstock 120 to move, a pressure spring 127 is disposed between the other end of the static pressure tailstock 120 and the W-direction slider 122, and a screw adjusting button 125 is connected to an end portion of the threaded connection member 124.
In some embodiments of the present invention, the pitch of the threaded connection 124 is 1mm and the circumference of the screw adjustment button 125 is equally divided into 100 grid divisions.
In some embodiments of the present invention, the rotation axes of the cylindrical grinding wheel 231 and the bore grinding wheel 232 are disposed parallel to each other.
In some embodiments of the present invention, the Z-guide rail 100 is provided with an X-axis screw assembly that drives the W-direction slide 122 and the workpiece spindle 110 in the Z-direction.
The compound grinding machine is characterized in that a workpiece to be machined is arranged between a workpiece main shaft 110 and a static pressure tailstock 120, a static pressure driving device is arranged at the rear part of a thimble 121 in the static pressure tailstock 120, the static pressure driving device mainly comprises a hydraulic cavity fixedly connected to the rear part of the thimble 121 and positioned in the static pressure tailstock 120, the tailstock main shaft and the thimble 121 are driven by the static pressure through hydraulic pressure, so that the tailstock main shaft and the thimble 121 can simultaneously realize free rotation and front-back expansion, the clamping precision of a machine tool is improved through static pressure driving, and the integral stability of the machine tool is improved.
The static pressure tailstock is an ultra-high precision rotary main shaft, a group of W-direction guide rails and W-direction slide plates 122 are further arranged on the Z-direction slide plates after the workpiece to be machined is assembled through cooperation of the static pressure tailstock and the workpiece main shaft, and the static pressure tailstock is driven by the Z-direction guide rails, the X-direction guide rails and the screw rod to move forwards and backwards to loosen or jack the workpiece.
By the arrangement of the static pressure tailstock 120, the compound grinding machine can further perform taper machining during excircle machining. During the outer conicity processing, adjust the spiral adjustment button 125 that is located static pressure tailstock 120 tail end, spiral adjustment button 125 is rotated once a round, drives static pressure tailstock 120 and removes 1mm along the Z direction, divides 100 check graduation according to circumference partition with spiral adjustment knob, then can be accurate to 0.01mm with static pressure tailstock 120 along Z direction regulation's precision.
The inclination of the second guide rail 123 at the bottom of the static pressure tailstock 120 is 1/100, and when the static pressure tailstock 120 moves 0.01mm along the Z direction, the central axial X direction of the static pressure tailstock 120 deviates from 0.0001mm, so that the precise adjustment of the taper of the static pressure tailstock 120 by 0.1 mu m can be realized, and the static pressure tailstock can be used for the fine machining of the excircle.
A pressure spring 127 is arranged between the static pressure tailstock 120 and the W-direction slide plate 122, and the pressure spring 127 can be used for eliminating a reverse gap between the static pressure tailstock 120 and the W-direction slide plate 122 after adjustment, so that the accuracy of screw thread adjustment is improved.
Meanwhile, the composite grinding machine combines the static pressure tailstock 120 capable of carrying out clamping taper adjustment and the rotary platform 220 capable of carrying out circumference adjustment to carry out taper machining, the rotary platform 220 can carry out deviation adjustment on the cylindrical grinding wheel 231 and the inner hole grinding wheel 232 which are respectively arranged on the upright post 230 and used for carrying out cylindrical machining along the axial direction of the X axis, so that angles of various taper angles are applicable, and in the workpiece machining process, the cylindrical machining of multiple taper surfaces can be carried out without disassembling and reloading the clamped workpiece.
When the workpiece needs to be subjected to inner hole machining, the static pressure tailstock 120 is removed, and the end of the workpiece is clamped by the workpiece spindle 110, so that inner hole grinding machining can be performed.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A static pressure tailstock combined ultra-precise inner and outer circle compound grinding machine is characterized in that: including setting up in Z to guide rail and the X guide rail of lathe machined surface, be equipped with Z to the slide on the Z to the guide rail, be equipped with work piece main shaft and static pressure tailstock on the Z to the slide, be equipped with X to the slip table on the X to the guide rail, be equipped with rotary platform on the X to the slip table, install the stand on the rotary platform, cylindrical grinding wheel and hole grinding wheel are installed respectively at the both ends of stand, cylindrical grinding wheel with the axis perpendicular to of hole grinding wheel the rotation axis of rotary platform, the static pressure tailstock with the work piece main shaft sets up in opposite directions, the bottom of static pressure tailstock is installed on the W to the slide, W to the slide with be equipped with in parallel with the W guide rail that Z was taken to the slide, W to the slide is relative Z to the removable installation of slide, the tip of static pressure tailstock is equipped with the thimble.
2. The static pressure tailstock combined ultra-precise internal and external circle compound grinding machine according to claim 1, wherein: the second guide rail is paved on the W-direction sliding plate and is obliquely arranged relative to the Z-direction.
3. The static pressure tailstock combined ultra-precise internal and external circle compound grinding machine according to claim 2, wherein: the second guide rail comprises two crossed ball guide rails which are paved in parallel, and the inclination of the second guide rail along the Z direction is 1/100.
4. The static pressure tailstock combined ultra-precise internal and external circle compound grinding machine according to claim 2, wherein: the bottom of the W-direction sliding plate is provided with a Z-direction sliding groove, and the W-direction sliding plate is detachably arranged relative to the Z-direction guide rail.
5. The static pressure tailstock combined ultra-precise internal and external circle compound grinding machine according to claim 2, wherein: the static pressure tailstock is driven to move along the second guide rail by the tailstock fine adjustment structure so as to adjust the machining angle of the workpiece.
6. The ultra-precise internal and external circle compound grinding machine with the combination of the static pressure tailstock according to claim 5, wherein the ultra-precise internal and external circle compound grinding machine is characterized in that: the tailstock fine tuning structure comprises a threaded connecting piece arranged at one end of the static pressure tailstock, the threaded connecting piece rotates to drive a sliding block connected with the static pressure tailstock to move, a pressure spring is arranged between the other end of the static pressure tailstock and the W-direction sliding plate, and a spiral adjusting button is connected to the end part of the threaded connecting piece in an extending mode.
7. The static pressure tailstock combined ultra-precise internal and external circle compound grinding machine according to claim 6, wherein: the pitch of the threaded connecting piece is 1mm, and the circumference of the spiral adjusting button is equally divided into 100-grid graduations.
8. The static pressure tailstock combined ultra-precise internal and external circle compound grinding machine according to claim 1, wherein: the rotation axes of the cylindrical grinding wheel and the inner bore grinding wheel are arranged in parallel with each other.
9. The static pressure tailstock combined ultra-precise internal and external circle compound grinding machine according to claim 2, wherein: and the Z-direction guide rail is provided with an X-axis screw rod assembly for driving the W-direction slide plate and the workpiece spindle to move along the Z direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602197.8A CN112605732B (en) | 2020-12-29 | 2020-12-29 | Ultra-precise internal and external circular compound grinding machine with static pressure tailstock combined |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602197.8A CN112605732B (en) | 2020-12-29 | 2020-12-29 | Ultra-precise internal and external circular compound grinding machine with static pressure tailstock combined |
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| Publication Number | Publication Date |
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| CN112605732A CN112605732A (en) | 2021-04-06 |
| CN112605732B true CN112605732B (en) | 2024-08-16 |
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| CN202011602197.8A Active CN112605732B (en) | 2020-12-29 | 2020-12-29 | Ultra-precise internal and external circular compound grinding machine with static pressure tailstock combined |
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| CN113787395A (en) * | 2021-10-19 | 2021-12-14 | 惠州市德瑞科机械有限公司 | Hydrostatic guideway platform, hydrostatic guideway transport mechanism, hydrostatic guideway grinding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN214264931U (en) * | 2020-12-29 | 2021-09-24 | 广州市敏嘉制造技术有限公司 | Ultra-precise inner and outer circle composite grinding machine with combined static pressure tailstock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3136051U (en) * | 2007-07-09 | 2007-10-11 | 長島精工株式会社 | Multi-purpose grinding machine |
| JP2009214276A (en) * | 2008-03-12 | 2009-09-24 | Nisshin Seisakusho:Kk | Cylindrical grinding machine and cylindrical grinding method thereof |
| CN102248452B (en) * | 2011-07-28 | 2013-05-22 | 洛阳传顺机械设备有限公司 | Internal or external cylindrical ultra-precision grinding machine for air static pressure metal parts |
| CN208866759U (en) * | 2018-09-28 | 2019-05-17 | 王向军 | A kind of numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN214264931U (en) * | 2020-12-29 | 2021-09-24 | 广州市敏嘉制造技术有限公司 | Ultra-precise inner and outer circle composite grinding machine with combined static pressure tailstock |
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