CN109434530B - Device and method for preventing ultra-large and ultra-thin copper bush from processing elliptical deformation - Google Patents
Device and method for preventing ultra-large and ultra-thin copper bush from processing elliptical deformation Download PDFInfo
- Publication number
- CN109434530B CN109434530B CN201811634972.0A CN201811634972A CN109434530B CN 109434530 B CN109434530 B CN 109434530B CN 201811634972 A CN201811634972 A CN 201811634972A CN 109434530 B CN109434530 B CN 109434530B
- Authority
- CN
- China
- Prior art keywords
- copper bush
- processed
- machine tool
- extension part
- ultra
- 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.)
- Active
Links
- 241000227287 Elliottia pyroliflora Species 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003754 machining Methods 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Turning (AREA)
Abstract
The device comprises a machine tool and a flange plate for propping up a boss of an extension part of the copper bush to be processed, wherein the machine tool comprises a machine tool chuck, a plurality of stud bolts are arranged between the machine tool chuck and the flange plate, one end of each stud bolt is in threaded connection with the machine tool chuck, the other end of each stud bolt is in threaded connection with the flange plate, and nuts are respectively arranged at two ends of each stud bolt; the end of the copper bush extension part to be processed is tightly propped against the chuck of the machine tool, the copper bush extension part to be processed penetrates through the flange plate and is in clearance fit with the flange plate, the flange plate is tightly propped against the boss of the copper bush extension part to be processed, and the invention also discloses a method for utilizing the device for preventing the ultra-large ultra-thin copper bush from processing elliptical deformation. According to the invention, the flange plate is tightly contacted with the boss of the copper bush extension part to be processed, the flange plate is fixed on the chuck of the machine tool through the stud, and the copper bush extension part to be processed penetrates through the flange plate and is in clearance fit with the flange plate, so that the copper bush extension part to be processed is free from radial force.
Description
Technical Field
The invention relates to the technical field of copper bush processing equipment, in particular to a device and a method for preventing elliptical deformation of ultra-large and ultra-thin copper bush processing.
Background
When extra-large ultrathin copper bush is processed on a machine tool, the copper bush to be processed is hereinafter referred to as the copper bush to be processed, if the end part of the copper bush to be processed is directly clamped by a machine tool chuck, the end part of the copper bush to be processed is easy to cause clamping marks to appear, the quality of the copper bush to be processed is influenced, the end part of the copper bush to be processed is provided with a copper bush extension part to be processed at present, a copper bush extension part boss to be processed is arranged on the copper bush extension part to be processed (as shown in fig. 1), when the copper bush to be processed is processed on the machine tool, the copper bush extension part boss to be processed is directly clamped by the machine tool chuck, after the processing is finished, the copper bush extension part to be processed is cut off, but when the machine tool chuck is released, the radial force born by the copper bush extension part boss to be processed is released, and the copper bush to be processed is deformed, so that the copper bush to be processed is deformed to appear.
Disclosure of Invention
The invention aims at: the device and the method for preventing elliptical deformation of the ultra-large and ultra-thin copper bush are provided, and the technical problem that the copper bush to be processed is easy to occur elliptical deformation when a chuck of a machine tool is loosened after the copper bush to be processed is processed on the machine tool is solved.
The technical scheme adopted by the invention is as follows:
The device for preventing the ultra-large and ultra-thin copper bush from processing elliptical deformation comprises a machine tool and a flange plate for propping up a boss of an extension part of the copper bush to be processed, wherein an axial hole is formed in the middle of the flange plate; the end of the copper bush extension part to be processed is in tight contact with the chuck of the machine tool, the copper bush extension part to be processed penetrates through the flange plate and is in clearance fit with the flange plate, and the flange plate is in tight contact with the boss of the copper bush extension part to be processed.
The stud bolts are uniformly distributed at intervals along the circumferential direction of the machine tool chuck.
The middle part at lathe chuck can be dismantled fixedly connected with connecting axle, the first telescopic link of fixedly connected with horizontally on the connecting axle, the stiff end and the connecting axle fixed connection of first telescopic link are equipped with the second telescopic link at the even interval in circumference of the free end of first telescopic link, and first telescopic link is perpendicular with the axial of second telescopic link, and the stiff end and the free end fixed connection of first telescopic link of second telescopic link are equipped with the liner at the free end of second telescopic link.
The pad is elastic, a pressure sensor is arranged between the pad and the free end of the second telescopic rod, the machine tool comprises a machine tool controller, and the pressure sensor is electrically connected with the machine tool controller.
The first telescopic rod and the second telescopic rod are electric push rods, and the first telescopic rod and the second telescopic rod are respectively connected with a machine tool controller.
A method for utilizing a device for preventing ultra-large and ultra-thin copper sleeves from processing elliptical deformation, comprising the following steps:
Loosening nuts at two ends of a stud bolt, and placing a boss of an extension part of a copper bush to be processed between a flange plate and a machine tool chuck;
the end part of the copper bush extension part to be processed is contacted with a chuck of a machine tool, and the flange plate is tightly propped against a boss of the copper bush extension part to be processed;
Step three, nuts at two ends of the stud bolts are screwed, and the copper bush extension part to be processed is fixed between the flange plate and the machine tool chuck, so that the copper bush to be processed is fixed;
fourthly, machining the copper bush to be machined by using a machine tool or other machining tools;
And fifthly, after finishing the processing, loosening nuts at two ends of the stud bolts, taking out the copper bush after finishing the processing, and cutting off the extension part of the copper bush.
A method for preventing an ultra-large ultra-thin copper sleeve from processing elliptical deformation comprises the following steps:
Loosening nuts at two ends of a stud bolt, and placing a boss of an extension part of a copper bush to be processed between a flange plate and a machine tool chuck;
the end part of the copper bush extension part to be processed is contacted with a chuck of a machine tool, and the flange plate is tightly propped against a boss of the copper bush extension part to be processed;
Step three, nuts at two ends of the stud bolts are screwed, and the copper bush extension part to be processed is fixed between the flange plate and the machine tool chuck, so that the copper bush to be processed is fixed;
fourthly, machining the copper bush to be machined by using a machine tool or other machining tools;
When the copper bush to be processed is locally processed, the machine tool controller controls the first telescopic rod to extend to a designated position, and the machine tool controller controls the second telescopic rod to extend, so that the copper bush to be processed is locally supported;
Step six, after the partial machining is finished, the machine tool controller controls the second telescopic rod and the first telescopic rod to retract in sequence;
And step seven, after all the processing is finished, loosening nuts at two ends of the stud bolts, taking out the copper bush which is finished to be processed, and cutting off the extension part of the copper bush.
According to the invention, the flange plate is tightly contacted with the boss of the copper bush extension part to be processed, the flange plate is fixed on the machine tool chuck through the stud, so that the copper bush extension part to be processed is fixed on the machine tool chuck, and the copper bush extension part to be processed penetrates through the flange plate and is in clearance fit with the flange plate, so that the copper bush extension part to be processed is not subjected to radial force, and when the flange plate is loosened after the copper bush to be processed is processed, the problem that the copper bush to be processed is easy to generate elliptical deformation is solved; the first telescopic rod and the second telescopic rod are matched with each other and used for supporting the part of the copper bush to be processed, so that deformation is prevented when the part of the copper bush to be processed is processed; the pressure sensor is used for detecting the pressure between the copper bush to be processed and the gasket and judging the extension length of the second telescopic rod and the extrusion degree of the gasket.
Drawings
FIG. 1 is a schematic view of a copper sheathing to be processed;
Fig. 2 is a schematic structural view of the present invention.
Detailed Description
As shown in fig. 1, a copper bush extension portion 60 to be processed is provided at an end portion of a copper bush 6 to be processed, a copper bush extension portion boss 61 to be processed is provided on the copper bush extension portion 60 to be processed, the copper bush extension portion boss 61 to be processed is directly clamped by a machine chuck 2 when the copper bush extension portion boss 61 to be processed is processed on a machine tool 1, and the copper bush extension portion 60 to be processed is cut after the processing is completed.
As shown in fig. 2, a device for preventing elliptical deformation of ultra-large and ultra-thin copper bush processing comprises a machine tool 1 and a flange 4 for propping up a boss 61 of an extension part of the copper bush to be processed, wherein an axial hole is formed in the middle of the flange 4, the machine tool 1 comprises a machine tool chuck 2, a plurality of stud bolts 3 are arranged between the machine tool chuck 2 and the flange 4, one end of each stud bolt 3 is in threaded connection with the machine tool chuck 2, the other end of each stud bolt 3 is in threaded connection with the flange 4, nuts 5 are respectively arranged at two ends of each stud bolt 3, and the nuts 5 are in threaded connection with the stud bolts 3; the end of the copper bush extension part 60 to be processed is in tight contact with the machine chuck 2, the copper bush extension part 60 to be processed penetrates through the flange 4 and is in clearance fit with the flange, and the flange 4 is in tight contact with the boss 61 of the copper bush extension part to be processed.
The stud bolts 3 are uniformly spaced apart in the circumferential direction of the machine chuck 2.
The middle part at lathe chuck 2 can be dismantled fixedly connected with connecting axle, the horizontal first telescopic link 7 of fixedly connected with on the connecting axle, the stiff end and the connecting axle fixed connection of first telescopic link 7, the circumference of the free end at first telescopic link 7 evenly spaced is equipped with second telescopic link 8, the axial of first telescopic link 7 and second telescopic link 8 is perpendicular, the stiff end and the free end fixed connection of first telescopic link 7 of second telescopic link 8, the free end at second telescopic link 8 is equipped with liner 10, first telescopic link 7 and second telescopic link 8 mutually support for treat the part of processing copper sheathing 6, prevent to treat when processing the part of processing copper sheathing 6, deformation appears.
The gasket 10 is elastic, a pressure sensor 9 is arranged between the gasket 10 and the free end of the second telescopic rod 8, the machine tool 1 comprises a machine tool controller, the pressure sensor 9 is electrically connected with the machine tool controller, and the pressure sensor 9 is used for detecting the pressure between the copper bush 6 to be processed and the gasket 10 and judging the extension length of the second telescopic rod 8 and the extrusion degree of the gasket 10.
The first telescopic rod 7 and the second telescopic rod 8 are electric push rods, and the first telescopic rod 7 and the second telescopic rod 8 are respectively connected with a machine tool controller.
According to the invention, the flange 4 is tightly contacted with the boss 61 of the copper bush extension part to be processed, the stud 3 fixes the flange 4 on the machine tool chuck 2, so that the copper bush 6 to be processed is fixed on the machine tool chuck 2, the copper bush extension part 60 to be processed penetrates through the flange 4 and is in clearance fit with the flange, the copper bush extension part 60 to be processed is free from radial force, and when the flange 4 is loosened after the copper bush 6 to be processed is processed, the problem that the copper bush 6 to be processed is easy to generate elliptical deformation is solved.
During operation, the nut 5 of the stud 3 is loosened firstly, the boss 61 of the copper bush extension part to be processed is placed between the flange 4 and the machine tool chuck 2, the flange 4 is in propping contact with the boss 61 of the copper bush extension part to be processed, then the nut 5 is screwed down, the copper bush 6 to be processed is firmly fixed, then the copper bush 6 to be processed is processed, when the part of the copper bush 6 to be processed is needed to be processed, the machine tool controller controls the first telescopic rod 7 to stretch out to a designated position, then controls the second telescopic rod 8 to stretch out, the pressure sensor 9 is used for detecting the pressure between the gasket 10 and the copper bush 6 to be processed, when a set value is reached, the support requirement is met, the pressure sensor 9 feeds back to the machine tool controller, the machine tool controller controls the second telescopic rod 8 to stop stretching, after the processing is completed, the machine tool controller sequentially controls the second telescopic rod 8 and the first telescopic rod 7 to retract, after the processing is completed, the nut 5 of the stud 3 is loosened, the copper bush 6 to be processed is taken out, and the extension part of the copper bush 6 to be processed is cut.
A method for utilizing a device for preventing ultra-large and ultra-thin copper sleeves from processing elliptical deformation, comprising the following steps:
Firstly, loosening nuts 5 at two ends of a stud 3, and placing a boss 61 of an extension part of a copper bush to be processed between a flange 4 and a machine tool chuck 2;
Secondly, the end part of the copper bush extension part 60 to be processed is contacted with the machine chuck 2, and the flange 4 is tightly propped against the boss 61 of the copper bush extension part to be processed;
Step three, nuts 5 at two ends of the stud bolts 3 are screwed, and the copper bush extension parts 60 to be processed are fixed between the flange 4 and the machine tool chuck 2, so that the copper bush 6 to be processed is fixed;
fourthly, machining the copper bush 6 to be machined by using the machine tool 1 or other machining tools;
and fifthly, after finishing the processing, loosening nuts 5 at two ends of the stud bolts 3, taking out the copper bush after finishing the processing, and cutting off the extension part of the copper bush.
A method for preventing an ultra-large ultra-thin copper sleeve from processing elliptical deformation comprises the following steps:
Firstly, loosening nuts 5 at two ends of a stud 3, and placing a boss 61 of an extension part of a copper bush to be processed between a flange 4 and a machine tool chuck 2;
Secondly, the end part of the copper bush extension part 60 to be processed is contacted with the machine chuck 2, and the flange 4 is tightly propped against the boss 61 of the copper bush extension part to be processed;
Step three, nuts 5 at two ends of the stud bolts 3 are screwed, and the copper bush extension parts 60 to be processed are fixed between the flange 4 and the machine tool chuck 2, so that the copper bush 6 to be processed is fixed;
fourthly, machining the copper bush 6 to be machined by using the machine tool 1 or other machining tools;
Fifthly, when the copper bush 6 to be processed is locally processed, the machine tool controller controls the first telescopic rod 7 to extend to a designated position, and the machine tool controller controls the second telescopic rod 8 to extend, so that the copper bush 6 to be processed is locally supported;
Step six, after the partial machining is finished, the machine tool controller controls the second telescopic rod 8 and the first telescopic rod 7 to retract in sequence;
and step seven, after all the processing is finished, loosening nuts 5 at two ends of the stud bolts 3, taking out the copper bush after the processing is finished, and cutting off the extension part of the copper bush.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (6)
1. The utility model provides a prevent oval device of deformation of ultra-large ultra-thin copper sheathing processing, includes the lathe and is used for the tight ring flange of waiting to process copper sheathing extension boss in top, is equipped with axial hole at the middle part of ring flange, and the lathe includes lathe chuck, its characterized in that: a plurality of stud bolts are arranged between the machine tool chuck and the flange plate, one end of each stud bolt is in threaded connection with the machine tool chuck, the other end of each stud bolt is in threaded connection with the flange plate, nuts are respectively arranged at two ends of each stud bolt, and the nuts are in threaded connection with the stud bolts; the end part of the copper bush extension part to be processed is in tight contact with the chuck of the machine tool, the copper bush extension part to be processed penetrates through the flange plate and is in clearance fit with the flange plate, and the flange plate is in tight contact with the boss of the copper bush extension part to be processed; the middle part at lathe chuck can be dismantled fixedly connected with connecting axle, the first telescopic link of fixedly connected with horizontally on the connecting axle, the stiff end and the connecting axle fixed connection of first telescopic link are equipped with the second telescopic link at the even interval in circumference of the free end of first telescopic link, and first telescopic link is perpendicular with the axial of second telescopic link, and the stiff end and the free end fixed connection of first telescopic link of second telescopic link are equipped with the liner at the free end of second telescopic link.
2. The apparatus for preventing elliptical deformation in the machining of ultra-large and ultra-thin copper sheathing according to claim 1, wherein: the stud bolts are uniformly distributed at intervals along the circumferential direction of the machine tool chuck.
3. The apparatus for preventing elliptical deformation in the machining of ultra-large and ultra-thin copper sheathing according to claim 1, wherein: the pad is elastic, a pressure sensor is arranged between the pad and the free end of the second telescopic rod, the machine tool comprises a machine tool controller, and the pressure sensor is electrically connected with the machine tool controller.
4. A device for preventing elliptical deformation in ultra-large and ultra-thin copper sheathing process as recited in claim 3, wherein: the first telescopic rod and the second telescopic rod are electric push rods, and the first telescopic rod and the second telescopic rod are respectively connected with a machine tool controller.
5. A method for using the device for preventing the ultra-large ultra-thin copper bush from processing elliptical deformation according to claim 1, which is characterized in that: the method comprises the following steps:
Loosening nuts at two ends of a stud bolt, and placing a boss of an extension part of a copper bush to be processed between a flange plate and a machine tool chuck;
the end part of the copper bush extension part to be processed is contacted with a chuck of a machine tool, and the flange plate is tightly propped against a boss of the copper bush extension part to be processed;
Step three, nuts at two ends of the stud bolts are screwed, and the copper bush extension part to be processed is fixed between the flange plate and the machine tool chuck, so that the copper bush to be processed is fixed;
fourthly, machining the copper bush to be machined by using a machine tool or other machining tools;
And fifthly, after finishing the processing, loosening nuts at two ends of the stud bolts, taking out the copper bush after finishing the processing, and cutting off the extension part of the copper bush.
6. A method for using the device for preventing the ultra-large ultra-thin copper bush from processing elliptical deformation according to claim 1, which is characterized in that: the method comprises the following steps:
Loosening nuts at two ends of a stud bolt, and placing a boss of an extension part of a copper bush to be processed between a flange plate and a machine tool chuck;
the end part of the copper bush extension part to be processed is contacted with a chuck of a machine tool, and the flange plate is tightly propped against a boss of the copper bush extension part to be processed;
Step three, nuts at two ends of the stud bolts are screwed, and the copper bush extension part to be processed is fixed between the flange plate and the machine tool chuck, so that the copper bush to be processed is fixed;
fourthly, machining the copper bush to be machined by using a machine tool or other machining tools;
When the copper bush to be processed is locally processed, the machine tool controller controls the first telescopic rod to extend to a designated position, and the machine tool controller controls the second telescopic rod to extend, so that the copper bush to be processed is locally supported;
Step six, after the partial machining is finished, the machine tool controller controls the second telescopic rod and the first telescopic rod to retract in sequence;
And step seven, after all the processing is finished, loosening nuts at two ends of the stud bolts, taking out the copper bush which is finished to be processed, and cutting off the extension part of the copper bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634972.0A CN109434530B (en) | 2018-12-29 | 2018-12-29 | Device and method for preventing ultra-large and ultra-thin copper bush from processing elliptical deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634972.0A CN109434530B (en) | 2018-12-29 | 2018-12-29 | Device and method for preventing ultra-large and ultra-thin copper bush from processing elliptical deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109434530A CN109434530A (en) | 2019-03-08 |
| CN109434530B true CN109434530B (en) | 2024-05-03 |
Family
ID=65539370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811634972.0A Active CN109434530B (en) | 2018-12-29 | 2018-12-29 | Device and method for preventing ultra-large and ultra-thin copper bush from processing elliptical deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109434530B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153763A (en) * | 2019-05-14 | 2019-08-23 | 南京理工大学 | A kind of positioning fixture of five axis machining of 3D printing part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2240800A1 (en) * | 1973-08-17 | 1975-03-14 | Weinig Michael Kg | |
| CN101412120A (en) * | 2008-09-09 | 2009-04-22 | 西安飞机工业（集团）有限责任公司 | Numerical control machining method based on rigid construction parts and clamping fixture for numerical control machining |
| CN104400475A (en) * | 2014-10-20 | 2015-03-11 | 北京遥测技术研究所 | Positioning clamping tool and method |
| KR101513676B1 (en) * | 2015-02-27 | 2015-04-23 | (주)명광엔지니어링건축사사무소 | Fixing device of power distributing box of apartment house |
| CN209175363U (en) * | 2018-12-29 | 2019-07-30 | 新乡市海山机械有限公司 | A kind of device preventing the ultra-thin copper sheathing processing ovalizing deflection of super large |
-
2018
- 2018-12-29 CN CN201811634972.0A patent/CN109434530B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2240800A1 (en) * | 1973-08-17 | 1975-03-14 | Weinig Michael Kg | |
| CN101412120A (en) * | 2008-09-09 | 2009-04-22 | 西安飞机工业（集团）有限责任公司 | Numerical control machining method based on rigid construction parts and clamping fixture for numerical control machining |
| CN104400475A (en) * | 2014-10-20 | 2015-03-11 | 北京遥测技术研究所 | Positioning clamping tool and method |
| KR101513676B1 (en) * | 2015-02-27 | 2015-04-23 | (주)명광엔지니어링건축사사무소 | Fixing device of power distributing box of apartment house |
| CN209175363U (en) * | 2018-12-29 | 2019-07-30 | 新乡市海山机械有限公司 | A kind of device preventing the ultra-thin copper sheathing processing ovalizing deflection of super large |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109434530A (en) | 2019-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203556903U (en) | Clamp for digital controlled lathe | |
| CN104759653A (en) | Machining tool for thin-wall cylinder parts | |
| CN214722490U (en) | Machining center is used for processing auto parts's frock clamp | |
| CN109434530B (en) | Device and method for preventing ultra-large and ultra-thin copper bush from processing elliptical deformation | |
| CN203556901U (en) | Novel film chuck | |
| CN204843021U (en) | Antidetonation boring machine bed | |
| CN104588752A (en) | Machining method of sleeve | |
| CN208117251U (en) | Lengthen square bar turning centre frame | |
| CN209175363U (en) | A kind of device preventing the ultra-thin copper sheathing processing ovalizing deflection of super large | |
| CN202162586U (en) | Tooling mold for processing outer circles of oil rings | |
| CN107378552A (en) | Thin-wall barrel class part by numerical control machine without technique edges adds fixture | |
| CN215941738U (en) | Chain wheel milling complete tool | |
| CN110768477B (en) | Motor core tire for high-power pump and assembly method thereof | |
| CN111020156B (en) | Tool for preventing convex spring from deforming during heat treatment | |
| CN112059674A (en) | Adjustable thin-wall shell vibration damping clamping device and operation method | |
| CN218946970U (en) | Pump body fixture | |
| CN203266205U (en) | Device preventing oil well pipe clamped by lathe from being deformed | |
| CN221640544U (en) | Saddle ring saddle part grinding machine fixture for hand-tearing steel rolling mill | |
| CN213614187U (en) | Side-pressing type device for preventing elliptical deformation in processing of overlong thin-wall copper bush | |
| CN218312009U (en) | Semicircular non-revolving body part numerical control lathe machining clamp | |
| CN221313293U (en) | Clamp for milling and turning cylindrical thin-wall shell | |
| CN218296970U (en) | Internal spline hydraulic expansion testing fixture | |
| CN211639141U (en) | Outer disc processing frock of valve body | |
| CN219945303U (en) | Tool fixture special for turning spline sleeve machine tool | |
| CN213614188U (en) | End face connection type elliptical deformation prevention device in processing of ultra-long thin-wall copper sleeve |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |