CN115958495A - Eccentricity processing device and method for tiny thin-wall cylindrical part - Google Patents
Eccentricity processing device and method for tiny thin-wall cylindrical part Download PDFInfo
- Publication number
- CN115958495A CN115958495A CN202310059455.XA CN202310059455A CN115958495A CN 115958495 A CN115958495 A CN 115958495A CN 202310059455 A CN202310059455 A CN 202310059455A CN 115958495 A CN115958495 A CN 115958495A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- eccentricity
- jaw chuck
- machine tool
- rotary table
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to an eccentricity processing device and method for a tiny thin-wall cylindrical part, which are arranged below a machine tool spindle, wherein a cutter is embedded in the machine tool spindle, a workpiece and the cutter are arranged in parallel, the eccentricity processing device comprises a base, a rotary table, an eccentricity adjusting assembly, a three-jaw chuck, a motor and a controller, and the three-jaw chuck is arranged on the eccentricity adjusting assembly; the eccentric adjusting assembly is arranged on the rotary table and is a cylinder with a groove formed in the top, holes which are symmetrically arranged along the axis of the cylinder and penetrate through the cylinder are formed in the side wall of the cylinder, and adjusting screws used for pushing and clamping the three-jaw chuck are arranged in the holes; the rotary table is arranged on the base; the motor is arranged on one side of the base and connected with the rotary table and used for providing adjustable rotating power for the rotary table; the controller is connected with the motor. Compared with the prior art, the invention can accurately process the micro eccentricity of the tiny thin-wall part.
Description
Technical Field
The invention relates to the technical field of machining of mechanical parts, in particular to an eccentricity machining device and method for a tiny thin-wall cylindrical part.
Background
An eccentric workpiece is defined as a part with a certain offset, wherein the outer circle is parallel to the axis of the inner hole of the part, and the part is not coincident with the axis of the inner hole of the part. With the rapid development of industrial manufacturing technology, eccentric machining of micro cylindrical parts is often required in some important fields. The existing processing method and eccentric adjusting device mainly face parts with larger radial size, but the eccentric processing of tiny thin-wall cylindrical parts with the diameter less than 1.5mm is very difficult.
Turning is currently the most commonly used method in the eccentric machining of cylindrical parts. The gasket is placed on any jaw of the lathe three-jaw chuck to meet the requirement of the eccentric distance required by workpiece processing, and then the workpiece is clamped for processing. Or a four-jaw independent chuck is used, the eccentric distance required by the workpiece is adjusted by adjusting the positions of the jaws of the four-jaw independent chuck, and then the workpiece is clamped and processed. The two methods are only suitable for parts with larger radial dimension and relatively larger eccentricity, the eccentric machining of the miniature cylindrical part is difficult to clamp the part, the micro eccentricity required by the miniature cylindrical part in the machining process is difficult to adjust, and meanwhile, the rigidity of the miniature thin-wall part is poor.
In summary, the main disadvantages of the prior art include:
(1) The common lathe can only be suitable for the eccentric distance processing of a workpiece with larger radial size, and can not clamp a micro part;
(2) The existing clamp is difficult to micro-adjust the workpiece to be processed and adjusted to the required eccentricity;
(3) The existing eccentric adjusting device is difficult to ensure the dimensional precision of the miniature thin-wall part due to the large deflection generated in the eccentric machining process of the miniature thin-wall part;
disclosure of Invention
The invention aims to provide an eccentricity processing device and method for a tiny thin-wall cylindrical part, aiming at overcoming the defects that the eccentricity cannot be adjusted in a micro-scale mode in the prior art.
The purpose of the invention can be realized by the following technical scheme:
one of the technical schemes of the invention is to provide an eccentric distance processing device for a tiny thin-wall cylindrical part, which is arranged below a machine tool spindle, the machine tool spindle is also embedded with a cutter for cutting a workpiece, the workpiece and the cutter are arranged in parallel, the eccentric distance processing device comprises a base, a rotary table, an eccentric adjusting component, a three-jaw chuck and a motor,
the three-jaw chuck is arranged on the eccentric adjusting assembly and used for clamping a workpiece;
the eccentric adjusting assembly is arranged on the rotary table and is a cylinder with a groove formed in the top, holes which are symmetrically arranged along the axis of the cylinder and penetrate through the cylinder are formed in the side wall of the cylinder, and adjusting screws used for pushing and clamping the three-jaw chuck are arranged in the holes;
the rotary table is arranged on the base and is used for rotating the eccentric adjusting assembly and the three-jaw chuck;
the motor is arranged on one side of the base and connected with the rotary table, and is used for providing adjustable rotating power for the rotary table.
Further, the bottom of the three-jaw chuck is provided with a boss embedded in the groove, so that when the adjusting screw is rotated to be close to or far away from the groove, the adjusting screw can push the three-jaw chuck to a specified position and clamp the three-jaw chuck.
Furthermore, fine threads are arranged on the outer wall of the adjusting screw and used for rotating the adjusting screw to be close to or far away from the groove, and the position of the three-jaw chuck is finely adjusted.
Furthermore, the motor is a servo motor, and the motor is also connected with a controller for regulating and controlling the power of the motor.
Further, the eccentricity range of the eccentric adjusting component is 0-1mm.
Further, the diameter range of the three-jaw chuck for clamping the workpiece is 1-33mm.
The second technical scheme of the invention is to provide an eccentricity processing method for a tiny thin-wall cylindrical part, which is based on the device in the first technical scheme, and the processing method comprises the following steps:
s1, fixing a base on a machine tool guide rail, clamping a calibration piece in a three-jaw chuck, clamping a centering rod perpendicular to a machine tool main shaft at the top of the three-jaw chuck, performing tool setting on the calibration piece, and adjusting the position of the three-jaw chuck by rotating an adjusting screw;
s2, the calibration piece is taken down, the workpiece is clamped in the three-jaw chuck, the tool for grinding the workpiece is clamped by the machine tool spindle, and the machined workpiece with the eccentric distance from the workpiece is obtained through machining.
Further, in step S1, the calibration piece is a cylindrical rod, and the precision of the centering rod is 0.001mm.
Further, in step S2, the cutter is a grinding rod, and a CBN grinding head for grinding the workpiece is arranged on the grinding rod; and an inner lining with the same inner diameter as the workpiece inner ring is additionally arranged in the workpiece inner ring so as to increase the rigidity of the workpiece inner ring.
Further, in step S2, the processing technology is as follows: the rotary table rotates the workpiece, the machine tool spindle drives the cutter to rotate, the machine tool spindle further horizontally feeds the cutter, so that the cutter takes the adjusted circle center of the inner circle of the workpiece as an axis, firstly, coarse grinding is carried out to remove 90% of the maximum machining allowance of the outer circle of the workpiece, then, the rotating speed of the machine tool spindle is increased, and the cutter is vertically fed to accurately grind the outer circle of the workpiece, so that the machined workpiece meets the required eccentricity.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention provides a new idea and a new method for controlling the rotating speed of a workpiece, which control the rotating speed and the rotating direction of a servo motor through a controller and improve the accurate control of the rotating speed of the workpiece in the machining process.
(2) The invention provides a novel directional eccentric adjustment method, which is characterized in that a tiny eccentric distance is directionally adjusted through micro translation generated by fine thread transmission on an adjusting screw, the eccentric distance of a workpiece is adjusted within a certain small range, and the universality of the device is improved.
(3) In the processing process, the lining with the same inner diameter as the workpiece is additionally arranged in the workpiece, so that the integral rigidity of the workpiece is improved, and the processing error caused by deflection is reduced.
(4) The invention adopts a grinding processing method, and in order to avoid the influence of the abrasion of the grinding wheel on the processing quality, the CBN grinding head is also adopted as a processing cutter, so that the processing precision of a workpiece with smaller processing allowance is high.
(5) The processing process of the invention comprises coarse grinding and fine grinding, on one hand, the processing efficiency of the workpiece is improved, and on the other hand, the size precision of the workpiece and the surface quality after processing are also ensured.
Drawings
FIG. 1 is a schematic three-dimensional structure of the device of the present invention.
Fig. 2 is a schematic three-dimensional structure of the eccentric adjustment assembly and the three-jaw chuck after assembly.
FIG. 3 is a front view of the eccentric adjustment assembly of the present invention assembled with a three-jaw chuck.
FIG. 4 is a cross-sectional view of the eccentric adjustment assembly of the present invention assembled with a three jaw chuck.
Fig. 5 is a schematic three-dimensional structure of the eccentric adjustment assembly of the present invention.
FIG. 6 is a front view of the eccentric adjustment assembly of the present invention.
FIG. 7 is a schematic cross-sectional view of the eccentric adjustment assembly of the present invention.
FIG. 8 is a schematic diagram of a workpiece processing operation according to the present invention.
Fig. 9 is a schematic diagram of a maximum deflection calculation formula in example 2.
FIG. 10 shows the dimensional parameters of the workpiece raw material (A) and the machined workpiece (B) in example 2.
The labels in the figure are as follows:
1 is a motor; 2 is a base; 3 is a rotary table; 4 is an eccentric adjusting component; 5 is an adjusting screw; 6 is a three-jaw chuck; 7 is a workpiece; 8 is a controller; 9 is a boss; 10 is a machine tool main shaft; 11 is a cutter.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
In the following embodiments, unless otherwise specified, functional components or structures are all conventional components or structures adopted in the art to achieve the corresponding functions.
Example 1:
as shown in fig. 1 to 8, the eccentric distance processing device for a tiny thin-wall cylindrical part is arranged below a machine tool spindle 10, a tool 11 for cutting a workpiece 7 is further embedded in the machine tool spindle 10, the workpiece 7 and the tool 11 are arranged in parallel, and the eccentric distance processing device comprises a base 2, a rotary table 3, an eccentric adjusting component 4, a three-jaw chuck 6, a motor 1 and a controller 8. The three-jaw chuck 6 is arranged on the eccentric adjusting component 4 and used for clamping a workpiece 7; the eccentric adjusting assembly 4 is arranged on the rotary table 3 and is a cylinder with a groove formed in the top, holes which are symmetrically arranged along the axis of the cylinder and penetrate through the side wall of the cylinder are formed in the side wall of the cylinder, adjusting screws 5 used for pushing and clamping the three-jaw chuck 6 are arranged in the holes, and 4 adjusting screws 5 are arranged in the holes; the rotary table 3 is arranged on the base 2 and used for rotating the eccentric adjusting assembly and the three-jaw chuck 6; the motor 1 is a servo motor, is arranged on one side of the base 2 and is connected with the rotary table 3 and is used for providing adjustable rotating power for the rotary table 3; the controller 8 is connected with the motor 1 and used for adjusting the power of the motor 1.
The bottom of the three-jaw chuck 6 as shown in fig. 4 is provided with a boss 9 embedded in a groove of the eccentric adjusting assembly 4 so that the adjusting screw 5 can push the three-jaw chuck 6 to a designated position and clamp the three-jaw chuck 6 when the adjusting screw 5 is rotated to approach or depart from the groove. The outer wall of the adjusting screw 5 is provided with fine threads, and the fine threads are used for fine adjustment of the position of the three-jaw chuck 6 when the adjusting screw 5 is rotated to be close to or far away from the groove. The eccentricity range of the eccentric adjusting component 4 is 0-1mm. The diameter range of the three-jaw chuck 6 for clamping the workpiece 7 is 1-33mm.
The embodiment also provides an eccentricity processing method for the tiny thin-wall cylindrical part, the structure of the processing process is specifically shown in fig. 8, and the processing method comprises the following steps:
s1, fixing a base 2 on a machine tool guide rail, clamping a calibration part cylindrical rod in a three-jaw chuck 6, clamping a centering rod by a machine tool spindle 10 perpendicular to the top of the three-jaw chuck 6, performing tool setting on the cylindrical rod, and adjusting the position of the three-jaw chuck 6 by rotating an adjusting screw 5; wherein the precision of the central rod is 0.001mm.
S2, taking down the cylindrical rod, placing a lining with the same inner diameter as the workpiece 7 into an inner ring of the workpiece 7, and clamping the lining into a three-jaw chuck 6, wherein a machine tool spindle 10 clamps a grinding rod provided with a CBN grinding head and used for grinding the workpiece 7, the turntable 3 rotates the workpiece 7, the machine tool spindle 10 drives the grinding rod to rotate, the machine tool spindle 10 firstly horizontally feeds the grinding rod to enable the grinding rod to roughly grind and remove 90% of the maximum machining allowance of an outer ring of the workpiece 7 by taking the circle center of the inner ring of the workpiece 7 after the position is adjusted as an axis, and then the rotating speed of the machine tool spindle 10 is increased and the outer ring of the workpiece 7 is vertically finely ground by the grinding rod, so that the machined workpiece meets the required eccentricity.
Example 2:
in this embodiment, a method for machining an eccentricity for a small thin-walled cylindrical part is provided, in which a workpiece 7 having an outer diameter b of 1.4mm and an inner diameter a of 0.7mm is machined, and after machining, the workpiece has an outer diameter b' of 1.0mm, an inner diameter a of 0.7mm, and an eccentricity c of 0.12mm, as shown in fig. 10.
The method comprises the following steps:
(1) After the base 2 is fixed on the machine tool guide rail, the servo motor is connected with the controller 8 through a data line. The workpiece 7 is subjected to the action of radial force of the grinding rod during processing, and then certain deflection is generated, so that tool setting calibration is needed before processing.
The deflection of the workpiece 7 after being subjected to the radial force of the tool 11 can be analyzed by a pattern diagram as shown in fig. 9, and the maximum deflection is calculated by the following formula:
in the formula:
f is a radial force applied to the workpiece 7, and the radial force applied to the workpiece 7 during cutting by the grinding method of the present embodiment is about 5N;
l is the length of the workpiece 7 which extends outwards after being clamped, and l is 10mm in the embodiment;
e is the elastic modulus of the workpiece 7, and the workpiece 7 of this embodiment is high-strength steel, and the elastic modulus thereof is 210GPa;
i is the sectional moment of inertia of the workpiece 7, and the sectional moment of inertia is calculated to be 0.177mm according to the sectional shape 4 ；
The eccentricity of the three-jaw chuck 6 to be adjusted can be calculated by the following formula:
p＝ω B +hΔ
in the formula:
p is the eccentricity required to be ensured in the processing of the workpiece 7, and the eccentricity of the processed workpiece is 0.12mm in the embodiment;
ω B the deflection omega of the present embodiment is calculated for the deflection generated by the workpiece 7 B Is 0.045mm;
h is the cutting depth, and the initial cutting depth of the tool set in the embodiment is 0.05mm;
delta is the eccentricity which needs to be adjusted by the three-jaw chuck 6, and can be calculated to be 0.025mm.
In order to facilitate operation, the three-jaw chuck 6 is used for clamping a solid cylindrical rod with the diameter of 6mm firstly, meanwhile, the machine tool spindle 10 performs auxiliary tool setting through clamping the middle rod, the tool setting precision of the middle rod can reach 0.001mm, the accuracy of the tool setting process can be further improved, the solid cylindrical rod is taken down after tool setting is finished, and a workpiece 7 is clamped on the three-jaw chuck 6 and then processed.
(2) In the embodiment, the maximum machining allowance of the workpiece 7 is 0.32mm, grinding is completed in two cutting paths, the rotating speed of the machine tool spindle 10 is set to be 6000r/min, the feeding speed is 0.05mm/min, the rotating speed of the turntable 3 is set to be 1r/min by the servo motor, the machining allowance of 0.3mm of the workpiece 7 is removed through the horizontal feeding machining mode of the machine tool spindle 10, then the cutting path of the machine tool spindle 10 is changed, the workpiece 7 is cut from top to bottom by the vertical feeding cutting mode of the machine tool spindle 10, the remaining machining allowance of 0.02mm of the workpiece 7 is cut, the rotating speed of the machine tool spindle 10 is set to be 8000r/min, and the descending speed of the machine tool spindle 10 is 10mm/min. The surface quality and dimensional accuracy of the machined workpiece are improved by increasing the rotational speed of the machine tool spindle 10 while cutting the remaining machining allowance.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. An eccentricity processing device for a tiny thin-wall cylindrical workpiece is arranged below a machine tool spindle (10), a cutter (11) for cutting the workpiece (7) is embedded in the machine tool spindle (10), the workpiece (7) and the cutter (11) are arranged in parallel, and the eccentricity processing device is characterized by comprising a base (2), a rotary table (3), an eccentricity adjusting component (4), a three-jaw chuck (6) and a motor (1),
the three-jaw chuck (6) is arranged on the eccentric adjusting assembly (4) and used for clamping and exposing the workpiece (7);
the eccentric adjusting assembly (4) is arranged on the rotary table (3) and is a cylinder with a groove formed in the top, holes which are symmetrically arranged along the axis of the cylinder and penetrate through the cylinder are formed in the side wall of the cylinder, and adjusting screws (5) used for pushing and clamping the three-jaw chuck (6) are arranged in the holes;
the rotary table (3) is arranged on the base (2) and is used for rotating the eccentric adjusting assembly (4) and the three-jaw chuck (6);
the motor (1) is arranged on one side of the base (2) and connected with the rotary table (3) and used for providing adjustable rotating power for the rotary table (3).
2. The eccentricity processing device for tiny thin-walled cylindrical workpieces as claimed in claim 1, characterized in that the bottom of the three-jaw chuck (6) is provided with a boss (9) embedded in the groove, so that when the adjusting screw (5) is turned to approach or move away from the groove, the adjusting screw (5) can push the three-jaw chuck (6) to a designated position and clamp the three-jaw chuck (6).
3. The eccentricity processing device for tiny thin-walled cylindrical workpieces as claimed in claim 1, wherein the outer wall of the adjusting screw (5) is provided with fine threads for rotating the adjusting screw (5) to approach or leave the groove, so that the position of the three-jaw chuck (6) can be finely adjusted.
4. The eccentricity processing device for the tiny thin-wall cylindrical workpiece, according to claim 1, is characterized in that the motor (1) is a servo motor, and the motor (1) is further connected with a controller (8) for regulating and controlling the power of the motor (1).
5. The eccentricity processing device for tiny thin-wall cylindrical workpieces as claimed in claim 1, wherein the eccentricity adjusted by the eccentricity adjusting component (4) ranges from 0mm to 1mm.
6. The eccentricity processing device for tiny thin-walled cylindrical workpieces as claimed in claim 1, wherein the diameter of the three-jaw chuck (6) for clamping the workpiece (7) ranges from 1mm to 33mm.
7. An eccentricity processing method for a minute thin-walled cylindrical workpiece based on the apparatus as claimed in any one of claims 1 to 6, characterized in that the eccentricity processing method comprises the steps of:
s1, fixing a base (2) on a machine tool guide rail, clamping a calibration piece in a three-jaw chuck (6), clamping a centering rod in a machine tool spindle (10) perpendicular to the top of the three-jaw chuck (6), setting the calibration piece, and adjusting the position of the three-jaw chuck (6) by rotating an adjusting screw (5);
s2, the calibration piece is taken down, the workpiece (7) is clamped in the three-jaw chuck (6), the tool (11) for grinding the workpiece (7) is clamped by the machine tool spindle (10), and the machined workpiece with the eccentric distance from the workpiece (7) is machined.
8. The eccentricity processing method for a tiny thin-walled cylindrical workpiece, according to claim 7, wherein in step S1, the calibration object is a cylindrical rod; the precision of the centering rod is 0.001mm.
9. The eccentricity processing method for a tiny thin-walled cylindrical workpiece, according to claim 7, wherein in step S2, the tool (11) is a grinding rod, and the grinding rod is provided with a CBN grinding head for grinding the workpiece (7); and an inner lining with the same inner diameter as the workpiece (7) is additionally arranged on the inner ring of the workpiece to increase the rigidity of the workpiece.
10. The eccentricity processing method for a tiny thin-walled cylindrical workpiece, according to claim 7, is characterized in that in step S2, the processing technique is as follows: the rotary table (3) rotates the workpiece (7), the machine tool spindle (10) drives the cutter (11) to rotate, the machine tool spindle (10) further horizontally feeds the cutter (11) to enable the cutter (11) to use the adjusted circle center of the inner ring of the workpiece (7) as an axis to firstly coarsely grind and remove 90% of the maximum machining allowance of the outer ring of the workpiece (7), then the rotating speed of the machine tool spindle (10) is increased, the cutter (11) is vertically fed to finely grind the outer ring of the workpiece (7), and the machined workpiece meets the required eccentric distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310059455.XA CN115958495A (en) | 2023-01-20 | 2023-01-20 | Eccentricity processing device and method for tiny thin-wall cylindrical part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310059455.XA CN115958495A (en) | 2023-01-20 | 2023-01-20 | Eccentricity processing device and method for tiny thin-wall cylindrical part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115958495A true CN115958495A (en) | 2023-04-14 |
Family
ID=87358209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310059455.XA Pending CN115958495A (en) | 2023-01-20 | 2023-01-20 | Eccentricity processing device and method for tiny thin-wall cylindrical part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115958495A (en) |
-
2023
- 2023-01-20 CN CN202310059455.XA patent/CN115958495A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6935003B2 (en) | Compound fabrication process and apparatus | |
| JP5155847B2 (en) | Eccentric hole machining method by machine tool | |
| JPH05200601A (en) | Machine tool | |
| KR20130000101U (en) | Apparatus for circumference grinding hard brittle plate | |
| RU2044610C1 (en) | Machine-tool for the electro-erosion processing | |
| CN112192161A (en) | Machining method for shaft boss shell parts | |
| CN205438045U (en) | Interior surface grinding device | |
| CN114589464A (en) | Method for machining inner hole of high-precision long and thin cylindrical part | |
| CN111890052B (en) | Special chamfering tool for multi-shaft deep hole machining tool | |
| CN115958495A (en) | Eccentricity processing device and method for tiny thin-wall cylindrical part | |
| CN218081512U (en) | Tool structure for screw pump stator | |
| JP4712586B2 (en) | NC machine tool | |
| CN114670021B (en) | Numerical control machine tool for processing implant | |
| CN210652468U (en) | Three-dimensional carving machine | |
| TWM575735U (en) | Lathe device for hard turning and machining of deep-hole ball thread | |
| KR101518061B1 (en) | Machine tool that oval processing is available | |
| CN105171148B (en) | The preparation method of micro tool electrode | |
| KR100580235B1 (en) | A cutting tool with a high speed cutter for cutting a face in radial type | |
| CN115122241B (en) | Grinding machine for detecting grinding wheel work starting position and detection method thereof | |
| JP2001287101A (en) | Machine tool | |
| CN214720883U (en) | Processing device | |
| CN221735382U (en) | Precise multi-station numerical control lathe device | |
| KR200383022Y1 (en) | A Cutting Tool with a High Speed Cutter For Cutting a Face in Radial Type | |
| CN110666595B (en) | Precision machining method for inner hole of thin-wall part | |
| CN220050063U (en) | Eccentric clamp for lathe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |