CN117506355A - Processing method of high-precision stepped hole of revolving body shaft sleeve - Google Patents
Processing method of high-precision stepped hole of revolving body shaft sleeve Download PDFInfo
- Publication number
- CN117506355A CN117506355A CN202311787560.1A CN202311787560A CN117506355A CN 117506355 A CN117506355 A CN 117506355A CN 202311787560 A CN202311787560 A CN 202311787560A CN 117506355 A CN117506355 A CN 117506355A
- Authority
- CN
- China
- Prior art keywords
- inner hole
- machining
- hole
- shaft sleeve
- outer circle
- 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
- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 238000003754 machining Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000012797 qualification Methods 0.000 abstract description 7
- 238000004080 punching Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of shaft sleeve processing, and discloses a processing method of a high-precision stepped hole of a revolving body shaft sleeve, which comprises the following steps: machining a first inner hole: clamping the outer circle of the revolving body shaft sleeve by using a clamp, taking the outer circle as a preliminary reference, finishing the processing of the first inner hole, and grinding and correcting the cylindricity of the first inner hole; correcting an excircle: clamping the revolving body shaft sleeve by using a clamp, grinding an outer circle by taking the first inner hole as a reference, and correcting the cylindricity of the outer circle; machining a second inner hole: the corrected outer circle is used as a reference, the clamped revolving body shaft sleeve is aligned, the machining of the second inner hole is completed, and the cylindricity of the second inner hole is ground and corrected; the processing of the stepped hole can be completed by adopting conventional punching equipment, the cost of production equipment can be greatly reduced, the processing error generated by secondary clamping is effectively reduced, the processing qualification rate of the stepped hole of the revolving body shaft sleeve is obviously improved, and the operation practicability of step-by-step punching of the conventional equipment is enhanced.
Description
Technical Field
The invention relates to the technical field of shaft sleeve processing, in particular to a processing method of a high-precision stepped hole of a revolving body shaft sleeve.
Background
The spool and the sleeve are matched to form a spool valve, which is a key part of a hydraulic product, and is often used for switching the flow direction of liquid between systems, the spool and the sleeve slide relatively frequently, the spool is matched with an outer circle and an inner hole of the sleeve in a required wear-resistant way, so that the hardness of the spool and the sleeve is relatively high, the processing technology of the sleeve is generally to perform heat treatment after rough processing of the part, then finish processing is performed on the inner hole of the sleeve through a grinding machine, when the systems have two different pressure requirements, the inner hole of the sleeve is required to be designed into a stepped hole to be matched with the spool, namely, the sleeve is internally provided with two inner holes with different apertures, and the coaxiality requirement on the two inner holes in the sleeve is very high in order to ensure the normal sliding fit of the spool.
The conventional grinding machine is used for machining the inner holes, two inner holes with different apertures cannot be machined at the same time only through one-time clamping, if the two inner holes are machined through two-time clamping of the revolving body shaft sleeve, larger machining errors are easy to generate due to the two-time clamping, the machined shaft sleeve is difficult to meet the requirement of required coaxiality, and the machining rejection rate of the shaft sleeve is higher.
Disclosure of Invention
The invention aims at: aiming at the problems of high processing difficulty and high processing cost of special processing equipment such as a deep hole internal grinding machine and customized drilling tools such as an ultra-long grinding rod and the like required by the processing method of the high-precision stepped hole of the revolving body shaft sleeve in the related technology, the processing method of the high-precision stepped hole of the revolving body shaft sleeve is provided, the stepped hole of the revolving body shaft sleeve can be processed by adopting common drilling equipment, and the error generated by clamping the shaft sleeve can be effectively reduced, so that the processing of the revolving body shaft sleeve is easy to meet the requirement of higher coaxiality, and the processing qualification rate of the stepped hole of the revolving body shaft sleeve is obviously improved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a processing method of a high-precision stepped hole of a revolving body shaft sleeve comprises the following steps:
machining a first inner hole: clamping the outer circle of the revolving body shaft sleeve by using a clamp, taking the outer circle as a preliminary reference, finishing the processing of the first inner hole, and grinding and correcting the cylindricity of the first inner hole;
correcting an excircle: clamping the revolving body shaft sleeve by using a clamp, grinding an outer circle by taking the first inner hole as a reference, and correcting the cylindricity of the outer circle;
machining a second inner hole: and (3) centering the clamped revolving body shaft sleeve by taking the corrected outer circle as a reference to finish the processing of the second inner hole, and grinding and correcting the cylindricity of the second inner hole.
According to the processing method of the high-precision stepped hole of the revolving body shaft sleeve, the processing of the stepped hole can be completed by adopting conventional punching equipment, a special deep hole internal grinding machine is not required, or equipment such as double-spindle internal grinding, electric internal grinding and the like is not required, and tools such as a special overlength grinding rod or overlength electrode are not required to be customized, so that the cost of production equipment can be greatly reduced, the processing error caused by secondary clamping is effectively reduced, the processing of the revolving body shaft sleeve is easy to meet the requirement of higher coaxiality of the stepped hole, the processing qualification rate of the stepped hole of the revolving body shaft sleeve is obviously improved, and the operation practicability of step-by-step punching of conventional equipment is enhanced.
In some alternative embodiments, in the step of correcting the outer circle, the clamping position selects the outer circle or the first inner hole.
In some alternative embodiments, if the aspect ratio of the first bore or the second bore is greater than 8, the finishing is performed using a slow wire.
In some alternative embodiments, the rotor sleeve is first rough machined, and the wire-passing holes are machined and then heat treated before finishing with slow wire.
In some alternative embodiments, after the heat treatment of the rotator shaft sleeve, the outer circle is semi-finished prior to the step of machining the first inner bore.
In some alternative embodiments, honing is used for finishing if the aspect ratio of the first bore or the second bore is greater than 8.
In some alternative embodiments, the length of the first bore is greater than the length of the second bore.
In some alternative embodiments, the cylindricity of the corrected outer circle is less than or equal to 0.003mm and the roughness is less than or equal to 0.2 μm.
In some alternative embodiments, the grinding controls the cylindricity of the first inner hole and the second inner hole to be less than or equal to 0.003mm, and the roughness to be less than or equal to 0.2 μm.
In some alternative embodiments, the apertures of the first and second bores are the same.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a rotor bushing according to an embodiment;
FIG. 2 is a schematic cross-sectional view of a rotor bushing according to an embodiment;
the marks in the figure: 100-a revolving body shaft sleeve, 110-an outer circle, 120-a first inner hole and 130-a second inner hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present application is described below with reference to specific embodiments in conjunction with the accompanying drawings:
examples
As shown in fig. 1 and 2, the method for processing the high-precision stepped hole of the revolving body shaft sleeve comprises the following steps:
machining the first bore 120: clamping the outer circle 110 of the revolving body shaft sleeve 100 by using a clamp, finishing the processing of the first inner hole 120 by taking the outer circle 110 as a preliminary reference, and grinding and correcting the cylindricity of the first inner hole 120;
correction outer circle 110: clamping the revolving body shaft sleeve 100 by using a clamp, grinding the outer circle 110 by taking the first inner hole 120 as a reference, and correcting the cylindricity of the outer circle 110;
machining a second bore 130: and (3) centering the clamped revolving body shaft sleeve 100 by taking the corrected outer circle 110 as a reference to finish the processing of the second inner hole 130, and grinding and correcting the cylindricity of the second inner hole 130.
The revolving body shaft sleeve 100 needs to process a first inner hole 120 and a second inner hole 130 with different apertures, if a conventional grinding machine is used for processing stepped holes, a clamp is required to be used for clamping and fixing twice to respectively process the first inner hole 120 and the second inner hole 130, but in the prior art, when the second clamping is performed, the first inner hole 120 is usually directly clamped and fixed, and the workpiece cannot be detected or aligned, so that a certain error often exists, and the processing precision after the second clamping is difficult to reach a higher standard;
through the step of correcting the outer circle 110, the reference of the first inner hole 120 can be converted to the outer circle 110 of the workpiece, so that when the step of processing the second inner hole 130 is performed, the workpiece subjected to secondary clamping can be aligned in advance by taking the corrected outer circle 110 as a correction reference, the accuracy of determining the center of the second inner hole 130 is ensured, and the coaxiality of the first inner hole 120 and the second inner hole 130 can be effectively improved.
According to the processing method of the high-precision stepped hole of the revolving body shaft sleeve, the processing of the stepped hole can be completed by adopting conventional punching equipment, a special deep hole internal grinding machine is not required, or equipment such as double-spindle internal grinding, electric internal grinding and the like is not required, and tools such as a special overlength grinding rod or overlength electrode are not required to be customized, so that the cost of production equipment can be greatly reduced, the processing error caused by secondary clamping is effectively reduced, the processing of the revolving body shaft sleeve 100 is easy to meet the requirement of higher coaxiality of the stepped hole, the processing qualification rate of the stepped hole of the revolving body shaft sleeve 100 is obviously improved, and the operation practicability of step-by-step punching of conventional equipment is enhanced.
In addition, the machining of the stepped hole is split into two working procedures, so that the phenomenon that the drilling working procedures are too concentrated can be avoided, the machining of each workpiece can be flexibly allocated when a plurality of devices are used on a production line, the production period is optimized, and the machining efficiency is improved.
In some alternative embodiments, in the step of correcting the outer circle 110, the clamping position selects the outer circle 110 or the first inner bore 120.
Through the step of correcting the outer circle 110, the coaxiality of the stepped hole can be improved, the flexibility of secondary clamping can be effectively improved, the outer circle 110 or the first inner hole 120 can be selected for clamping and fixing, the convenience of clamping operation is further improved, and when the first inner hole 120 is selected as a clamping position, shielding of the outer circle 110 can be avoided, and the correction operation of the outer circle 110 is facilitated.
In some alternative embodiments, if the aspect ratio of the first bore 120 or the second bore 130 is greater than 8, the finishing is performed using a slow wire.
Because the grinding machine uses the standard grinding wheel rod to have the problem of insufficient rigidity, the deep hole with the length-diameter ratio larger than 8 is difficult to grind with high precision, and the slow wire-moving drilling mode is suitable for deep hole machining, so that the machining precision of the first inner hole 120 or the second inner hole 130 with larger aperture ratio can be effectively ensured to meet the requirements.
In some alternative embodiments, the rotor sleeve 100 is roughed prior to finishing with slow wire feed, while the wire feed holes are machined, and then heat treated.
The wire through holes are reserved in the rough machining process, so that the phenomenon that the workpiece subjected to heat treatment is difficult to perforate after the hardness is improved can be avoided.
In some alternative embodiments, after the rotor sleeve 100 is heat treated, the outer circle 110 is semi-finished prior to the step of machining the first bore 120.
By performing semi-finishing on the outer circle 110, enough correction allowance can be reserved, meanwhile, the axial error between the first inner hole 120 and the outer circle 110 can be reduced as much as possible, the grinding time required by the step of correcting the outer circle 110 is reduced, and the overall processing efficiency is improved.
In some alternative embodiments, honing is used for finishing if the aspect ratio of the first bore 120 or the second bore 130 is greater than 8.
When deep hole processing is needed, drilling can be performed in a honing mode, dependence on processing equipment is reduced, and practicability of the processing method is improved.
In some alternative embodiments, the length of the first bore 120 is greater than the length of the second bore 130.
If the lengths of the stepped holes are different, the inner hole with a longer length is selected as the first inner hole 120, and is preferentially processed and used as the reference hole, so that the processing difficulty of the second inner hole 130 can be relatively reduced, and the second inner hole 130 is processed more easily to achieve higher coaxiality.
In some alternative embodiments, the modified outer circle 110 has a cylindricity of 0.003mm or less and a roughness of 0.2 μm or less.
Since the reference of the first inner hole 120 is converted into the outer circle 110 as the reference, the cylindricity error of the outer circle 110 is controlled, and the error of the reference conversion can be controlled, thereby ensuring the required machining precision and improving the qualification rate of the machined product.
In some alternative embodiments, the grinding controls the cylindricity of the first bore 120 and the second bore 130 to be 0.003mm or less and the roughness to be 0.2 μm or less.
The coaxiality of the first inner hole 120 and the second inner hole 130 can be effectively improved, the coaxiality of the first inner hole 120 and the second inner hole 130 is easy to realize and is less than or equal to 0.005mm, and the machining qualification rate of the shaft sleeve by adopting a conventional grinding machine is greatly improved.
In some alternative embodiments, the apertures of the first bore 120 and the second bore 130 are the same.
The aperture of the first inner hole 120 and the aperture of the second inner hole 130 are the same, namely the processing method is also suitable for single-hole processing, especially when the length-diameter ratio of the single hole is larger, and the rigidity of the grinding wheel rod prepared by the universal grinder is insufficient and is not suitable, if the ratio of half of the length of the single hole to the aperture of the single hole accords with the service condition of the grinding wheel rod, the processing method can be used for dividing the single hole into two short holes for processing respectively, so that the single-hole processing with the higher length-diameter ratio by using the existing grinding wheel rod is realized, the processing range of the grinding wheel rod is improved, the practicability of the universal grinder is enhanced, the equipment investment can be reduced when a plurality of deep holes with higher length-diameter ratio are processed, and the production cost is reduced.
Based on the convenience of production and processing and the requirement of specific working conditions, certain selection and combination are performed in various optional embodiments, as shown in fig. 1 and 2, the method for processing the high-precision stepped hole of the revolving body shaft sleeve 100, which is required to be processed, has two inner holes with two apertures, wherein the length of the left inner hole is smaller than that of the right inner hole, the length-diameter ratio of the left inner hole is smaller than 8, the length-diameter ratio of the right inner hole is larger than 8, the Rockwell hardness HRC of the revolving body shaft sleeve 100 is required to be more than or equal to 55, the coaxiality of the two inner holes is less than or equal to 0.005mm, comprises the following steps:
s1, taking a right inner hole of a revolving body shaft sleeve 100 as a first inner hole 120, taking a left inner hole as a processed second inner hole 130, and determining that when a slow wire is selected for finish machining, after selecting a part matched with the revolving body shaft sleeve 100, firstly performing rough machining on the revolving body shaft sleeve 100, simultaneously processing a wire through hole required by the slow wire, leaving a certain margin in the wire through hole, and then performing heat treatment on the revolving body shaft sleeve 100 to improve the hardness;
s2, semi-finishing is carried out on the outer circle 110 of the revolving body shaft sleeve 100, and proper correction allowance is reserved;
s3, machining a first inner hole 120: clamping the outer circle 110 of the revolving body shaft sleeve 100 by using a clamp, using the outer circle 110 as a primary reference, machining a first inner hole 120 by slow wire feeding, grinding and correcting the first inner hole 120, and ensuring the precision of the reference hole, so that the cylindricity of the first inner hole 120 is less than or equal to 0.003mm, and the roughness is less than or equal to 0.2 mu m;
s4, correcting the excircle 110: clamping and fixing the first inner hole 120 on a grinder by using a mandrel tool, grinding the outer circle 110 by taking the first inner hole 120 as a reference, and correcting the cylindricity of the outer circle 110 so that the cylindricity of the outer circle 110 is less than or equal to 0.003mm and the roughness is less than or equal to 0.2 mu m;
s5, machining a second inner hole 130: and (3) taking the corrected outer circle 110 as a reference, clamping the first inner hole 120 on a grinder by using a mandrel tool, then aligning, grinding the second inner hole 130 by using a conventional grinding wheel rod, and grinding and correcting the cylindricity of the second inner hole 130 to ensure that the cylindricity of the second inner hole 130 is less than or equal to 0.003mm and the roughness is less than or equal to 0.2 mu m, thereby finishing the processing of the high-precision stepped hole of the revolving body shaft sleeve.
In step S3, the first inner hole 120 may be machined by honing according to the field device, so that the threading hole does not need to be machined in advance in step S1.
According to the processing method for the high-precision stepped hole of the revolving body shaft sleeve, the reference hole is processed in a mode of combining slow wire feeding and grinding, the cylindricity of the first inner hole 120 serving as the reference hole is guaranteed to be less than or equal to 0.003mm, the roughness is superior to Ra0.2mu m, the grinding excircle 110 is used for providing a standard for the processing of the second inner hole 130, the coaxiality of the second inner hole 130 and the first inner hole 120 is effectively improved, the coaxiality of the processed stepped hole is easy to meet the precision requirement of less than or equal to 0.005mm, the qualification rate of workpiece production can be effectively improved, the inner hole processing is positioned through a mandrel tool, the positioning quality of a part is stable, the steps Kong Cafen are processed for two working procedures, the working procedure content is prevented from being too concentrated, and adverse effects on the production period are not easy to occur.
It should be noted that all the directional indicators in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
Claims (10)
1. The processing method of the high-precision stepped hole of the revolving body shaft sleeve is characterized by comprising the following steps of:
machining a first inner bore (120): clamping an outer circle (110) of the revolving body shaft sleeve (100) by using a clamp, finishing the processing of the first inner hole (120) by taking the outer circle (110) as a preliminary reference, and grinding and correcting the cylindricity of the first inner hole (120);
correction circle (110): clamping the revolving body shaft sleeve (100) by using a clamp, grinding the outer circle (110) by taking the first inner hole (120) as a reference, and correcting the cylindricity of the outer circle (110);
machining a second bore (130): and (3) centering the clamped revolving body shaft sleeve (100) by taking the corrected outer circle (110) as a reference to finish the processing of the second inner hole (130), and grinding and correcting the cylindricity of the second inner hole (130).
2. The method for machining a high-precision stepped bore of a rotor bushing according to claim 1, wherein in the step of correcting the outer circumference (110), the clamping position selects either the outer circumference (110) or the first inner bore (120).
3. The method for machining a high-precision stepped hole of a rotor bushing according to claim 1, wherein if the aspect ratio of the first inner hole (120) or the second inner hole (130) is greater than 8, finishing is performed by using a slow wire.
4. The method for machining a high-precision stepped hole of a rotor bushing according to claim 3, wherein the rotor bushing (100) is subjected to rough machining and a wire-passing hole is machined and then subjected to heat treatment before finishing by using a slow wire.
5. The method for machining a high-precision stepped hole of a rotor bushing according to claim 4, wherein after the rotor bushing (100) is heat-treated, the outer circle (110) is semi-finished before the step of machining the first inner hole (120).
6. The method for machining a high-precision stepped hole of a rotor bushing according to claim 1, wherein if the aspect ratio of the first inner hole (120) or the second inner hole (130) is greater than 8, honing is used for finish machining.
7. The method for machining a high-precision stepped bore of a rotor bushing according to any one of claims 1 to 6, wherein the length of the first inner bore (120) is longer than the length of the second inner bore (130).
8. The method for machining a high-precision stepped hole of a rotor bushing according to claim 1, wherein the cylindricity of the corrected outer circle (110) is not more than 0.003mm and the roughness is not more than 0.2 μm.
9. The method for machining a high-precision stepped hole of a rotor bushing according to claim 1, wherein the cylindricity of the first inner hole (120) and the second inner hole (130) is controlled to be less than or equal to 0.003mm, and the roughness is controlled to be less than or equal to 0.2 μm.
10. The method for machining a high-precision stepped bore of a rotor bushing according to claim 1, wherein the bore diameters of the first bore (120) and the second bore (130) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311787560.1A CN117506355A (en) | 2023-12-22 | 2023-12-22 | Processing method of high-precision stepped hole of revolving body shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311787560.1A CN117506355A (en) | 2023-12-22 | 2023-12-22 | Processing method of high-precision stepped hole of revolving body shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117506355A true CN117506355A (en) | 2024-02-06 |
Family
ID=89755255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311787560.1A Pending CN117506355A (en) | 2023-12-22 | 2023-12-22 | Processing method of high-precision stepped hole of revolving body shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117506355A (en) |
-
2023
- 2023-12-22 CN CN202311787560.1A patent/CN117506355A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7507147B2 (en) | Method for machining rotary parts | |
| CN101337311A (en) | Method for processing spheroid abnormal hole and surface using general-purpose machine and standard frock | |
| CN106826117A (en) | A kind of processing method of precision bearing seat | |
| CN107350754B (en) | Processing method of outer barrel with inclined annular groove | |
| CN105290738A (en) | Method for precision machining of nozzle type parts | |
| CN102785110B (en) | Center aligning method and standard ring | |
| CN110039269B (en) | Manufacturing method of thin-wall deep-hole sealing shell of driving mechanism | |
| KR101368761B1 (en) | Machining process of flange yoke | |
| CN205630066U (en) | Press crankshaft machining complete set anchor clamps | |
| CN112439906B (en) | Machining process of bearing ring in diesel engine | |
| CN117506355A (en) | Processing method of high-precision stepped hole of revolving body shaft sleeve | |
| CN109128723A (en) | A kind of processing method of the through lightening hole of crank-shaft link neck V-type | |
| US11590583B2 (en) | Machining tool, processing device and method for processing workpieces | |
| CN106807963B (en) | A kind of multilayer material nacelle outer layer normal direction hole processing technical method | |
| CN201283507Y (en) | Positioning apparatus for chamfering drill | |
| EP0418041A2 (en) | Tool unit, in particular for finishing operations of cutting machining | |
| CN105965282A (en) | Positioning tool clamp for automobile workpieces | |
| CN105290453A (en) | Device and method for machining annular sealing groove through ordinary boring mill | |
| CN108788825A (en) | Special fixture and deep hole processing method for deep hole processing | |
| CN212444263U (en) | Quick turning frock of a word axle oil groove | |
| CN110722373B (en) | Tool and method for machining hobbing cutter chip pocket | |
| CN108705261A (en) | A kind of elongated shaft design basis hole forming method of spline | |
| CN218800499U (en) | Eccentric excircle machining clamp | |
| JPH08197311A (en) | Coolant feed device for multispindle automatic lathe | |
| CN220029497U (en) | Lathe fixture |
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 |