CN110935891A - Turning device for collector ring of generator on fan - Google Patents

Turning device for collector ring of generator on fan Download PDF

Info

Publication number
CN110935891A
CN110935891A CN201811107819.2A CN201811107819A CN110935891A CN 110935891 A CN110935891 A CN 110935891A CN 201811107819 A CN201811107819 A CN 201811107819A CN 110935891 A CN110935891 A CN 110935891A
Authority
CN
China
Prior art keywords
base
generator
screw rod
turning device
adjusting
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.)
Granted
Application number
CN201811107819.2A
Other languages
Chinese (zh)
Other versions
CN110935891B (en
Inventor
李长春
刘闽盛
包飞
汪静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Zhuzhou Institute Co Ltd
Original Assignee
CRRC Zhuzhou Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CRRC Zhuzhou Institute Co Ltd filed Critical CRRC Zhuzhou Institute Co Ltd
Priority to CN201811107819.2A priority Critical patent/CN110935891B/en
Publication of CN110935891A publication Critical patent/CN110935891A/en
Application granted granted Critical
Publication of CN110935891B publication Critical patent/CN110935891B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B5/00Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw

Abstract

The invention discloses a turning device for a collector ring of a generator on a fan, which comprises a first base, a second base, an adjusting seat, a tool rest, a turning tool, a screw rod and two guide rods, wherein two ends of the screw rod are arranged on the first base and the second base, the two guide rods are arranged between the first base and the second base and are respectively arranged on two sides of the screw rod, the tool rest is arranged on the two guide rods and is connected with the screw rod, the adjusting seat is arranged between the first base and a cylinder of a collector ring cover of the generator when in use and can adjust the distance between the first base and the inner wall of the cylinder of the collector ring cover, a fixing screw rod connected with an end cover of a mounting brush frame of the generator is arranged on the second base, and the turning tool is arranged on the tool rest through. The invention can directly turn the generator collecting ring on the fan to repair the problem of the surface damage of the collecting ring.

Description

Turning device for collector ring of generator on fan
Technical Field
The invention relates to a collecting ring repairing device of a fan generator, in particular to a turning device of a collecting ring of a generator on a fan.
Background
The generator collecting ring is a key part of a wind driven generator, and the surface of the generator collecting ring is damaged seriously due to pulling, burning and other reasons in the running process of the generator. When the damage of the surface of the collecting ring is still within a certain range and the ground insulation resistance of the collecting ring is larger than a certain resistance value (good electrical insulation), the collecting ring can be turned for continuous use, but the collecting ring is dismounted from the fan and the generator firstly in normal treatment, then the collecting ring is machined and repaired on the ground, and then the repaired collecting ring is assembled on the generator.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a turning device for a collector ring of a generator on a fan, which is used for directly turning the collector ring of the generator on the fan generator and repairing the surface burn of the collector ring.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a generator collecting ring turning device on fan, includes first base, second base, adjusts seat, knife rest, lathe tool, lead screw and two guide bars, the lead screw both ends are installed on first base and second base, two guide bars are located between first base and the second base and are divided the both sides of locating the lead screw, the mobilizable cover of knife rest is on two guide bars to with the screw-nut fixed connection of lead screw, adjust the seat and install between the collecting ring cover drum of first base and generator to adjustable first base and the interval between the collecting ring cover drum, be equipped with the clamping screw who can be connected with generator installation brush yoke end cover on the second base, the lathe tool passes through feed adjusting part and installs on the knife rest.
As the further improvement of the technical scheme, preferably, the adjusting seat comprises a connecting transverse plate and two adjusting vertical plates, the two adjusting vertical plates are fixed on the connecting transverse plate at intervals, the connecting transverse plate is fixedly connected with the first base, the adjusting vertical plates are provided with adjusting bolts, the two adjusting bolts are located on the same straight line, and the adjusting bolts are perpendicular to the screw rod.
As a further improvement of the above technical solution, preferably, a hand wheel for rotating the screw rod is provided at one end of the screw rod.
As a further improvement of the above technical solution, preferably, the second base is provided with three mounting blind holes, one end of the guide rod and one end of the lead screw are respectively disposed in the mounting blind holes, the other end of the guide rod is fixedly connected to the first base through a bolt, and the other end of the lead screw passes through the first base and is connected to the hand wheel.
As a further improvement of the above technical solution, preferably, the hand wheel has an adjustment scale.
As a further improvement of the above technical solution, preferably, a sliding sleeve is arranged between the guide rod and the tool holder, and the tool holder is fixedly connected with the sliding sleeve.
As a further improvement of the above technical solution, preferably, the feed adjustment assembly has an adjustment scale.
As a further improvement of the above technical solution, preferably, a dial indicator is provided on the tool holder.
As a further improvement of the above technical solution, preferably, the second base is provided with an air-clearance arc.
As a further improvement of the above technical solution, preferably, the tool holder is fixedly sleeved on the feed screw nut; the number of the fixing screws is three.
Compared with the prior art, the invention has the advantages that:
according to the turning device for the collector ring of the generator on the fan, the lead screw is rotated, the lead screw nut drives the tool holder to move axially along the lead screw, so that turning feed can be performed, a burned part on the surface of the collector ring is cut off, the surface of the collector ring is repaired, and meanwhile, the outer diameter of the collector ring can still meet the use and quality requirements; by adopting the turning device, the collecting ring of the generator can be directly turned on the fan generator, the collecting ring can be directly repaired on the fan generator and then continuously used, the processing time of the quality problem of the collecting ring can be shortened, the operation and maintenance cost and the quality loss of the fan can be reduced, and the quality problem of the outer surface of the collecting ring of the generator can be directly repaired on the generator on the basis of not disassembling the generator and the collecting ring of the generator on the wind turbine generator.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a schematic axial side view of the present invention.
The reference numerals in the figures denote:
1. a first base; 2. a second base; 21. installing blind holes; 22. avoiding an empty arc; 3. an adjusting seat; 31. connecting the transverse plates; 32. adjusting a vertical plate; 33. adjusting the bolt; 4. a tool holder; 5. turning a tool; 6. a screw rod; 61. a feed screw nut; 62. a hand wheel; 7. a guide bar; 71. a sliding sleeve; 8. fixing the screw rod; 9. a feed adjustment assembly; 101. a collector ring; 102. the slip ring covers the cylinder.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
As shown in fig. 1 to 3, the turning device for the collector ring of the generator on the fan in this embodiment includes a first base 1, a second base 2, an adjusting base 3, a tool rest 4, a turning tool 5, a lead screw 6 and two guide rods 7, wherein two ends of the lead screw 6 are installed on the first base 1 and the second base 2, the two guide rods 7 are installed between the first base 1 and the second base 2 and respectively installed at two sides of the lead screw 6, the tool rest 4 is movably sleeved on the two guide rods 7 and is fixedly connected with a lead screw nut 61 of the lead screw 6, the adjusting base 3 is installed between the first base 1 and a collector ring cover cylinder 102 of the generator, and can adjust the distance between the first base 1 and the collector ring cover cylinder 102, the second base 2 is provided with a fixing screw 8 capable of being connected with an end cover of the generator installation brush holder, and the turning tool 5 is installed on the tool rest 4 through a feed adjusting component.
Through rotating the screw rod 6, the screw rod nut 61 drives the tool rest 4 to move axially along the screw rod, so that turning feed can be performed, the burned part on the surface of the collecting ring 101 is cut off, the surface of the collecting ring 101 is repaired, and meanwhile, the outer diameter of the collecting ring 101 can still meet the use and quality requirements. The feed adjustment assembly 9 is used to adjust the feed amount of the turning tool 5. Whole device installs through adjusting the clamping screw 8 on seat 3 and the second base 2, need demolish generator brush yoke pole when using, installs clamping screw 8 in the mounting hole on generator installation brush yoke end cover to locking adjusts the depth of parallelism of 3 adjustable lead screw 6 (or guide bar 7) of seat and generator main shaft, measures with measuring tool, and measuring tool can be percentage table etc.. By adopting the turning device, the collecting ring of the generator can be directly turned on the fan generator, the collecting ring can be directly repaired on the fan generator and then continuously used, the processing time of the quality problem of the collecting ring can be shortened, the operation and maintenance cost and the quality loss of the fan can be reduced, and the quality problem of the outer surface of the collecting ring of the generator can be directly repaired on the generator on the basis of not disassembling the generator and the collecting ring of the generator on the wind turbine generator.
In this embodiment, the feed adjusting assembly 9 has an adjusting scale, which facilitates adjustment of the feed amount of the turning tool 5. A dial indicator (not shown in the figure) is arranged on the tool rest 4, and the parallelism between the guide rod 7 and the main shaft (collector ring 101) of the generator is ensured by using the movable dial indicator and matching with an adjusting device, so that the cutting thickness is consistent when the turning tool 5 is used for cutting.
In this embodiment, adjust seat 3 including connecting diaphragm 31 and two regulation risers 32, two regulation risers 32 intervals are fixed on connecting diaphragm 31, connect diaphragm 31 and first base 1 fixed connection, are equipped with an adjusting bolt 33 on the regulation riser 32, and two adjusting bolt 33 are located collinear, and adjusting bolt 33 is perpendicular with lead screw 6. The adjusting bolt 33 is rotated, and the regulator relatively adjusts the distance between the vertical plates 32, namely, the parallelism between the screw rod 6 and the guide rod 7 and the main shaft of the generator can be adjusted. Point O in fig. 3 represents the axial center of the main shaft of the generator.
In this embodiment, a hand wheel 62 for rotating the screw 6 is provided at one end of the screw 6. The specific hand wheel 62 is provided with adjusting scales, the hand wheel 62 is convenient for rotating the screw rod 6, and the axial movement amount of the tool rest 4 is convenient to adjust by the aid of the scales, so that the turning speed of the turning tool 5 is controlled. The tool holder 4 is fixedly sleeved on the feed screw nut 61.
In this embodiment, the second base 2 is provided with a clearance arc 22 for avoiding the slip ring 101. The second base 2 is provided with three mounting blind holes 21, one end of the guide rod 7 and one end of the screw rod 6 are respectively arranged in the mounting blind holes 21, the other end of the guide rod 7 is fixedly connected with the first base 1 through a bolt, and the other end of the screw rod 6 penetrates through the first base 1 and is connected with a hand wheel 62. Three fixing screw rods 8 are positioned on the second base 2 and are opposite to the screw rod 6, two fixing screw rods 8 are positioned at two ends of the clearance arc 22, the other fixing screw rod 8 is superposed with the mounting blind hole 21 of the screw rod 6, when the fixing is performed, the brush holder rod of the generator is disassembled, the fixing screw rods 8 are inserted into the mounting holes of the end cover of the brush holder for mounting the generator, and the fixing screw rods 8 are locked by nuts
In this embodiment, a sliding sleeve 71 is disposed between the guide rod 7 and the tool holder 4, and the tool holder 4 is fixedly connected to the sliding sleeve 71. The sliding sleeve 71 prevents the tool holder 4 from sliding directly against the guide rod 7.
The turning method of the turning device for the collector ring of the generator on the fan comprises the following steps:
(1) detaching a cover plate, an observation hole cover plate, a rotor outgoing line, a rotor wiring board, a brush rack rod and the like of the collecting ring 101;
(2) fixing a second base 2 on an end cover of a generator mounting brush frame through a fixing screw 8, fixing a first base 1 on a generator collecting ring cover cylinder 102 through an adjusting seat 3, adjusting the parallelism of a lead screw 6 and an outer bus of a collecting ring 101 by using a dial indicator, fixing a tool rest 4, and ensuring that the tool rest 4 is parallel to a generator main shaft by using the dial indicator;
(3) installing a turning tool 5 and trial run;
(4) adjusting the rotating speed of the collecting ring 101, and adjusting the speed according to different machine types and the diameter of the collecting ring 101 through variable pitch under the conditions of safe wind speed and stable wind speed;
(5) turning the collecting ring 101: setting the feed amount; adjusting the feed amount, clockwise shaking the hand wheel 62 by hand to axially move the turning tool 5, anticlockwise rotating the hand wheel 62 to withdraw the tool after finishing the cutting, returning to the initial position, adjusting the feed amount, clockwise shaking the handle by hand to axially move the turning tool 5 again; when the turning tool 5 returns to the initial position, repeating the steps until the damaged part on the surface of the collecting ring 101 is eliminated, wherein the outer diameter of the collecting ring 101 needs to meet the use and quality requirements;
(6) stopping the machine, and unloading the cutter 5 and the cutter rest 4;
(7) the surface of the slip ring 101 is deburred.
In the invention, sharp edges and burrs (except for the profile edges) with sharp angles are not allowed on the surface of the turned collector ring 101; the clamp is accurate and reliable in positioning, has enough strength and rigidity, and is not easy to deform; the surface quality of the processed collector ring 101 can meet the following requirements: the outer diameter meets the use and quality requirements; the surface of the slip ring is glossy, has no strain burn, and has the roughness Ra of less than or equal to 1.6 mu m; the radial runout of the surface of the slip ring meets the quality requirement.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims (10)

1. The utility model provides a turning device of generator collecting ring on fan which characterized in that: comprises a first base (1), a second base (2), an adjusting seat (3), a tool rest (4), a turning tool (5), a screw rod (6) and two guide rods (7), wherein two ends of the screw rod (6) are arranged on the first base (1) and the second base (2), the two guide rods (7) are arranged between the first base (1) and the second base (2) and are respectively arranged at two sides of the screw rod (6), the tool rest (4) is movably sleeved on the two guide rods (7) and is fixedly connected with a screw rod nut (61) of the screw rod (6), the adjusting seat (3) is arranged between the first base (1) and a current collecting ring cover cylinder (102) of a generator, the distance between the first base (1) and the current collecting ring cover cylinder (102) can be adjusted, a fixing screw rod (8) which can be connected with an end cover of a mounting brush frame of the generator is arranged on the second base (2), and the turning tool (5) is arranged on the tool rest (4) through a feed adjusting component (9).
2. The turning device for the collector rings of the generators on the wind turbines as claimed in claim 1, is characterized in that: adjust seat (3) including connecting diaphragm (31) and two regulation risers (32), two regulation risers (32) intervals are fixed on connecting diaphragm (31), connect diaphragm (31) and first base (1) fixed connection, be equipped with adjusting bolt (33) on adjusting riser (32).
3. The turning device for the collector rings of the generators on the wind turbines as claimed in claim 1, is characterized in that: and a hand wheel (62) for rotating the screw rod (6) is arranged at one end of the screw rod (6).
4. The turning device for the collector rings of the generators on the wind turbines as claimed in claim 3, wherein: be equipped with three installation blind hole (21) on second base (2), the one end of guide bar (7) and the one end of lead screw (6) are located respectively in installation blind hole (21), the other end of guide bar (7) passes through bolt and first base (1) fixed connection, lead screw (6) other end pass first base (1), and with hand wheel (62) are connected.
5. The turning device for the collector rings of the generators on the wind turbines as claimed in claim 3, wherein: the hand wheel (62) is provided with an adjusting scale.
6. The turning device for the collector ring of the generator on the fan according to any one of claims 1 to 5, characterized in that: a sliding sleeve (71) is arranged between the guide rod (7) and the knife rest (4), and the knife rest (4) is fixedly connected with the sliding sleeve (71).
7. The turning device for the collector ring of the generator on the fan according to any one of claims 1 to 5, characterized in that: the feed adjusting assembly (9) is provided with an adjusting scale.
8. The turning device for the collector ring of the generator on the fan according to any one of claims 1 to 5, characterized in that: the knife rest (4) is provided with a dial indicator.
9. The turning device for the collector ring of the generator on the fan according to any one of claims 1 to 5, characterized in that: and the second base (2) is provided with an air-avoiding arc (22).
10. The turning device for the collector ring of the generator on the fan according to any one of claims 1 to 5, characterized in that: the tool rest (4) is fixedly sleeved on the screw rod nut (61); the number of the fixed screw rods (8) is three.
CN201811107819.2A 2018-09-21 2018-09-21 Turning device for collector ring of generator on fan Active CN110935891B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811107819.2A CN110935891B (en) 2018-09-21 2018-09-21 Turning device for collector ring of generator on fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811107819.2A CN110935891B (en) 2018-09-21 2018-09-21 Turning device for collector ring of generator on fan

Publications (2)

Publication Number Publication Date
CN110935891A true CN110935891A (en) 2020-03-31
CN110935891B CN110935891B (en) 2021-04-27

Family

ID=69904533

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811107819.2A Active CN110935891B (en) 2018-09-21 2018-09-21 Turning device for collector ring of generator on fan

Country Status (1)

Country Link
CN (1) CN110935891B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857920A (en) * 2021-10-27 2021-12-31 安庆盛河水利科技有限公司 Portable large-diameter circular steel tube turning special device

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201500788U (en) * 2009-09-10 2010-06-09 长沙水泵厂有限公司 Boring tool capable of realizing axial and radial feed
CN102570730A (en) * 2011-10-19 2012-07-11 中国神华能源股份有限公司 Method for repairing slip ring of generator on site
CN202356627U (en) * 2011-10-28 2012-08-01 鞍钢电气有限责任公司 Lathe with electrically turning motor collector ring
CN202506864U (en) * 2012-03-08 2012-10-31 南京苏雷机电开发有限公司 Portable disc-shaped boring machine
CN105415103A (en) * 2015-12-11 2016-03-23 中煤能源黑龙江煤化工有限公司 Field turning device for exciting sliding ring of steam turbine generator set and field construction method
CN205519669U (en) * 2016-03-04 2016-08-31 东方电气集团东方汽轮机有限公司 On --spot prosthetic devices of heavy gyration work piece axle journal
CN205927121U (en) * 2016-08-24 2017-02-08 贵州开磷集团股份有限公司 High pressure wound -rotor motor sliding ring turning device
CN206356605U (en) * 2016-12-14 2017-07-28 东方电气集团东方汽轮机有限公司 Use cylinder cylinder boring machine in steam turbine reformation scene
CN106992636A (en) * 2017-04-15 2017-07-28 沧州华海风电设备科技技术开发有限公司 A kind of restoring on line machine
CN206697735U (en) * 2017-04-24 2017-12-01 明阳智慧能源集团股份公司 Prosthetic device on a kind of wind power generating set double-fed asynchronous generator collector ring tower
CN207074779U (en) * 2017-06-25 2018-03-06 龙口矿业集团有限公司 The online prosthetic device of Generator Slip Ring
CN207154788U (en) * 2017-12-04 2018-03-30 马鞍山马钢电气修造有限公司 A kind of large-size machine slip ring field turning device
CN207616363U (en) * 2017-11-09 2018-07-17 四川东江电力工程有限公司 A kind of collecting ring of generator rotor advanced study and training special equipment

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201500788U (en) * 2009-09-10 2010-06-09 长沙水泵厂有限公司 Boring tool capable of realizing axial and radial feed
CN102570730A (en) * 2011-10-19 2012-07-11 中国神华能源股份有限公司 Method for repairing slip ring of generator on site
CN202356627U (en) * 2011-10-28 2012-08-01 鞍钢电气有限责任公司 Lathe with electrically turning motor collector ring
CN202506864U (en) * 2012-03-08 2012-10-31 南京苏雷机电开发有限公司 Portable disc-shaped boring machine
CN105415103A (en) * 2015-12-11 2016-03-23 中煤能源黑龙江煤化工有限公司 Field turning device for exciting sliding ring of steam turbine generator set and field construction method
CN205519669U (en) * 2016-03-04 2016-08-31 东方电气集团东方汽轮机有限公司 On --spot prosthetic devices of heavy gyration work piece axle journal
CN205927121U (en) * 2016-08-24 2017-02-08 贵州开磷集团股份有限公司 High pressure wound -rotor motor sliding ring turning device
CN206356605U (en) * 2016-12-14 2017-07-28 东方电气集团东方汽轮机有限公司 Use cylinder cylinder boring machine in steam turbine reformation scene
CN106992636A (en) * 2017-04-15 2017-07-28 沧州华海风电设备科技技术开发有限公司 A kind of restoring on line machine
CN206697735U (en) * 2017-04-24 2017-12-01 明阳智慧能源集团股份公司 Prosthetic device on a kind of wind power generating set double-fed asynchronous generator collector ring tower
CN207074779U (en) * 2017-06-25 2018-03-06 龙口矿业集团有限公司 The online prosthetic device of Generator Slip Ring
CN207616363U (en) * 2017-11-09 2018-07-17 四川东江电力工程有限公司 A kind of collecting ring of generator rotor advanced study and training special equipment
CN207154788U (en) * 2017-12-04 2018-03-30 马鞍山马钢电气修造有限公司 A kind of large-size machine slip ring field turning device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857920A (en) * 2021-10-27 2021-12-31 安庆盛河水利科技有限公司 Portable large-diameter circular steel tube turning special device

Also Published As

Publication number Publication date
CN110935891B (en) 2021-04-27

Similar Documents

Publication Publication Date Title
CN100406174C (en) Conic hole boring machine with adjustable taper
CN102962489B (en) Large support plate elastic hole drilling machine and use method thereof
CN110935891B (en) Turning device for collector ring of generator on fan
EP3650153A1 (en) Online cutting device for wheel spinning flash
CN116652259B (en) Major diameter wind power flange bolt hole location mark line processingequipment
CN105252040A (en) Conical bore boring device
CN208374276U (en) Casting cabin casts hole prosthetic device
CN108188446B (en) Cabin casting hole repairing device and casting hole repairing method
CN106312104A (en) Fine adjustment device and method for digital controlled lathe knife rest
CN214517910U (en) Novel pneumatic toothless saw
CN102139377B (en) Movable spin special-shaped lathe
CN215356367U (en) Milling cutter for machining convenient to adjust
CN213499017U (en) Adjusting tool for wear-resistant layer of axial flow fan blade
CN205049290U (en) Rotor dynamic balance anchor clamps
CN106808025B (en) A kind of polygonal Work treatment installation
CN213764884U (en) Tool apron dismounting device convenient to disassemble and assemble
CN202199772U (en) Exciter collecting ring turning device
CN201534286U (en) Anti-deformation positioning clamping device for full-diameter and thin-walled rotating parts
CN108788311B (en) Steel plate beveling machine
CN202877938U (en) Adjustable bearing system of numerical control magnet yoke milling machine
CN218800475U (en) Auxiliary supporting device for lathe
CN212402604U (en) Loading attachment is used in thimble production and processing
CN214109015U (en) Device for cutting steel pipe
CN210500022U (en) Machine tool spindle rotor dismounting device
CN214352397U (en) Automatic marking device

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