CN110064774A - Rotating-table apparatus - Google Patents
Rotating-table apparatus Download PDFInfo
- Publication number
- CN110064774A CN110064774A CN201910358329.8A CN201910358329A CN110064774A CN 110064774 A CN110064774 A CN 110064774A CN 201910358329 A CN201910358329 A CN 201910358329A CN 110064774 A CN110064774 A CN 110064774A
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- CN
- China
- Prior art keywords
- turntable
- clamping element
- fastening bolt
- rotating
- rotary disk
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/20—Setting work or tool carrier along a circular index line; Turret head drilling machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a kind of rotating-table apparatus, including the mounting platform being installed on casing drilling hole machine tool, the rotary disk limitation device for the turntable of casing assembly positioning and for rotary disk limitation locking to carry out the casing on turntable to drilling processing being installed on mounting platform, rotary disk limitation device includes the rotary disk limitation mechanism being installed on mounting platform, rotary disk limitation mechanism is relatively groups of two-by-two to be laid in turntable periphery, rotary disk limitation mechanism includes the brake bracket being fixed on mounting platform, along the fastening bolt that the radial direction of turntable is arranged on brake bracket and the clamping element being installed in the peripheral wall surfaces in fastening bolt for being resisted against turntable, along the tapped through hole of turntable being radially provided with for wearing fastening bolt on brake bracket, fastening bolt is rotated towards turntable, to drive clamping element mobile towards turntable, and then it is resisted against clamping element In the peripheral wall surfaces of turntable, by the opposite force of the clamping element of the rotary disk limitation mechanism of opposite laying to clamp turntable.
Description
Technical field
The present invention relates to cavity casing drilling technique fields to be particularly related to a kind of rotating-table apparatus.
Background technique
It needs to carry out drilling processing, casing, due to casing edge to various cavity casings in aero-engine
It is circumferential that there are multiple machined surfaces, various sizes of through-hole and/or blind hole are processed on different machined surfaces, therefore by processing
Rotating-table apparatus is installed on lathe, then casing is installed on turntable, by rotating turntable, the different machined surface of casing is turned to
The machining area of machining tool, then casing is processed, by after the position fixation of turntable thus complete by rotary disk limitation device
At the processing of all machined surfaces of casing.Existing rotating-table apparatus is utilized circumferentially arranged with multiple pin holes in the peripheral wall surfaces of turntable
Pairs of bolt is inserted into corresponding pin hole and fixes turntable, but there are gaps between bolt and pin hole, cause processed
Journey turntable rotates, and then the Working position of machined surface on casing is caused to deviate, and causes machining accuracy low, such as bore
The radial dimension in the hole processed when hole machined and the cylindricity in hole do not meet processing request, and due to the angle of rotation of turntable
Degree is related with the laying mode of pin hole in turntable peripheral wall surfaces, therefore bolt cannot limit turntable in 360 degree of any angles
Position, since the laying angle of multiple machined surfaces of different casings is different, it is therefore desirable to rotate different angles and be processed, be processed
Different casings is needed using different turntables, and many casings need to process at different Working positions on same machined surface
The laying angle of multiple through-holes and/or blind hole, multiple Working positions on different machined surfaces is different, processes the different processing of casing
Face usually needs for different turntables to be installed on mounting platform, improves the cost of turntable production, and turntable needs to dismantle repeatedly,
Reduce processing efficiency.
Summary of the invention
The present invention provides a kind of rotating-table apparatus, to solve casing machining position when being processed on existing rotating-table apparatus
Set the technical problem for shifting and causing the machining accuracy of casing low.
According to an aspect of the present invention, a kind of rotating-table apparatus is provided, including the installation being installed on casing drilling hole machine tool
Platform is installed on mounting platform and assembles the turntable of positioning for casing and for locking rotary disk limitation to turntable
Casing carry out drilling processing rotary disk limitation device, rotary disk limitation device includes the rotary disk limitation machine being installed on mounting platform
Structure, rotary disk limitation mechanism is relatively groups of two-by-two to be laid in turntable periphery, and rotary disk limitation mechanism includes being fixed on mounting platform
Brake bracket, turn for being resisted against along the fastening bolt that is arranged on brake bracket of radial direction and being installed in fastening bolt of turntable
Clamping element in the peripheral wall surfaces of disk, along the tapped through hole of turntable being radially provided with for wearing fastening bolt on brake bracket, tightly
Fixing bolt is rotated towards turntable, so that it is mobile towards turntable to drive clamping element, and then clamping element is made to be resisted against the peripheral wall surfaces of turntable
On, by the opposite force of the clamping element of the rotary disk limitation mechanism of opposite laying to clamp turntable.
Further, the clamping face that clamping element is used to be resisted against in the peripheral wall surfaces of turntable is using the peripheral wall surfaces phase with turntable
The arc surface mutually cooperated.
Further, the radian in the clamping face of clamping element is 15 degree of -30 degree.
Further, clamping element is equipped with for clamping element to be sheathed on the blind hole in fastening bolt, and blind hole is by phase
Intercommunicated inner hole and exit orifice are constituted, and exit orifice matches connection with fastening bolt screw thread, and inner hole is that radial dimension is greater than fastening bolt
Radial dimension of smooth surface hole.
Further, the lower section of clamping element is equipped with guide pad, and guide pad is fixed on mounting platform, and guide pad and folder
Gap between tight element is no more than 0.5mm, and the angle for preventing clamping element from rotating with fastening bolt is excessive.
Further, multiple turntable limiting blocks are laid with along the circumferentially equidistant of turntable on mounting platform, turntable limiting block with
Gap between turntable peripheral wall surfaces is no more than 0.1mm, for carrying out radial limit to turntable.
Further, the head of fastening bolt is equipped with the rotating rod for fastening bolt rotation force, on mounting platform
Equipped with for providing the escape groove of rotation space to rotating rod.
Further, turntable is equipped with for positioning and the clamping device of clamping casing.
Further, turntable is equipped with circumferential scale marker, in order to obtain the angle of turntable rotation and the rotation of turntable
Position.
The present invention also provides a kind of casing drilling processing devices, including above-mentioned rotating-table apparatus.
The invention has the following advantages:
Rotating-table apparatus of the invention passes through the relatively groups of one or more groups of rotary disk limitations for being laid in turntable periphery two-by-two
Mechanism limits turntable, is arranged brake bracket on mounting platform, and brake bracket top rotary table be radially provided with it is tight for wearing
The tapped through hole of fixing bolt, by by fastening bolt towards turntable rotation after, make the clamping element being installed in fastening bolt against
In in the peripheral wall surfaces of turntable, to be clamped turntable by the clamping element of one or more groups of rotary disk limitation mechanisms, turntable is adding
It not can rotate during work, the Working position of turntable upper casing is not in deviation, it is ensured that the machining accuracy symbol to drill on casing
It closes and requires, and turntable can be limited by rotary disk limitation device after rotating any angle and be fixed, convenient for casing difference angle
The Working position of different angle is adjusted on the machined surface and machined surface of degree, it is ensured that the Working position accurate positioning of casing,
To improve the machining accuracy of casing.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the rotating-table apparatus of the preferred embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the rotary disk limitation mechanism of the rotating-table apparatus of the preferred embodiment of the present invention.
Marginal data:
1, turntable；2, mounting platform；3, brake bracket；4, fastening bolt；5, clamping element；51, inner hole；52, exit orifice；6, it keeps away
Allow slot；7, guide pad；8, turntable limiting block.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the structural schematic diagram of the rotating-table apparatus of the preferred embodiment of the present invention；Fig. 2 is turning for the preferred embodiment of the present invention
The structural schematic diagram of the rotary disk limitation mechanism of disk device.
As shown in Figure 1, the rotating-table apparatus of the present embodiment, including be installed on casing drilling hole machine tool mounting platform 2, installation
In on mounting platform 2 for the turntable 1 of casing assembly positioning and for by 1 limiting locking of turntable to the machine on turntable 1
The rotary disk limitation device of casket progress drilling processing.Rotary disk limitation device includes the rotary disk limitation mechanism being installed on mounting platform 2,
Rotary disk limitation mechanism is relatively groups of two-by-two to be laid in 1 periphery of turntable.According to the different machine directions of casing difference machined surface, choosing
The one group of rotary disk limitation mechanism selected on the same direction is fixed by turntable 1.In drilling process, the side for the operating force that casing is subject to
To consistent with the force direction of rotary disk limitation mechanism, so that turntable 1 be avoided to deflect and vibrate in process.Turntable limit
Position mechanism includes the brake bracket 3 being fixed on mounting platform 2, along the radial direction of turntable 1 is arranged in fastening bolt 4 on brake bracket 3
And it is installed on the clamping element 5 in fastening bolt 4 for being resisted against in the peripheral wall surfaces of turntable 1, along turntable 1 on brake bracket 3
It is radially provided with the tapped through hole for wearing fastening bolt 4, fastening bolt 4 is rotated towards turntable 1, to drive 5 court of clamping element
Turntable 1 is mobile, and then is resisted against clamping element 5 in the peripheral wall surfaces of turntable 1, passes through the folder of the rotary disk limitation mechanism of opposite laying
The opposite force of tight element 5 is to clamp turntable 1.Rotating-table apparatus of the invention is laid in outside turntable 1 by relatively groups of two-by-two
One or more groups of rotary disk limitation mechanisms in week limit turntable 1, and brake bracket 3, and brake bracket 3 are arranged on mounting platform 2
The tapped through hole of top rotary table 1 being radially provided with for wearing fastening bolt 4 is made after rotating fastening bolt 4 towards turntable 1
The clamping element 5 being installed in fastening bolt 4 is resisted against in the peripheral wall surfaces of turntable 1, to pass through two rotary disk limitation mechanisms
Clamping element 5 clamps turntable 1, and turntable 1 not can rotate in process, and the Working position of 1 upper casing of turntable is not in
Deviation, it is ensured that the machining accuracy to drill on casing meets the requirements, and the size and cylindricity of drilling meet the requirements, and turntable 1
It can be limited and be fixed by rotary disk limitation device after rotating any angle, convenient for the machined surface to casing different angle and added
The Working position of different angle is adjusted on work face, and is suitable for the drilling processing of various cavity casings, really
The Working position accurate positioning for protecting casing, to improve the machining accuracy of casing.After processing a machined surface, by one of them
After fastening bolt 4 is unscrewed, turntable 1 is rotated, after another machined surface of casing is turned to the machining area of machining tool, then is weighed
Newly the fastening bolt 4 unscrewed is tightened.Optionally, turntable 1 is equipped with positioning step.Multi-stage stairs respectively with the machine of different model
Casket end surface shape matches.
As shown in Fig. 2, the clamping face that clamping element 5 is used to be resisted against in the peripheral wall surfaces of turntable 1 is using the peripheral wall with turntable 1
Face is mutually matched arc surface.Two clamping elements 5 are fixed in the limit of turntable 1 by the screwing force of two fastening bolts 4
Between, clamping element 5 and the peripheral wall surfaces of turntable 1 fit, and contact area is big, at the same pressure, clamping element 5 and turntable
Frictional force between 1 is big, so that turntable 1 is fixedly clamped.The radian in the clamping face of clamping element 5 is 15 degree of -30 degree.Work as clamping
When the radian in face is less than 15 degree, clamping element 5 and the contact area of turntable 1 are small, the frictional force between clamping element 5 and turntable 1
Not big enough, turntable 1 is easy rotation.When the radian in the face of clamping is greater than 30 degree, the size of clamping element 5 is larger, and fastening bolt 4 is twisted
It is relatively difficult when tight rotation.The surface roughness of the peripheral wall surfaces for clamping face and turntable 1 of clamping element 5 is greater than 6.3 μm, increases folder
The frictional force of tight element 5 clamped between face and the peripheral wall surfaces of turntable 1.Optionally, the clamping face of clamping element 5 is equipped with and is used for
The clip slot of sandwiched turntable 1.The groove bottom of clip slot is resisted against in the peripheral wall surfaces of turntable 1, two trough wall surfaces of clip slot respectively with turntable 1
Upper and lower surface fits, to increase the contact area of clamping element 5 Yu turntable 1, passes through the two clampings member being oppositely arranged
Turntable 1 is clamped more firm by part 5.Optionally, rotating-table apparatus further includes Horizontal limiting mechanism, to ensure that turntable 1 keeps water
It is flat.Horizontal limiting mechanism include along the circumferential upper hopper chute for being set to 1 lower surface of turntable of turntable 1, be set to 2 upper surface of mounting platform and with
Rolling member upper hopper chute opposite gliding groove and be located between upper hopper chute and gliding groove.Turntable 1 is carried out by rolling member
Support avoids turntable 1 from glancing off along the vertical direction in rotation process and process to carry out Horizontal limiting to turntable 1,
Ensure that 1 holding of turntable is horizontal and improves the load capacity of turntable 1.
As shown in Fig. 2, clamping element 5 is equipped with the blind hole for being sheathed on clamping element 5 in fastening bolt 4, blind hole
It is made of interconnected inner hole 51 and exit orifice 52, exit orifice 52 matches connection with 4 screw thread of fastening bolt, and inner hole 51 is radial dimension
Greater than the radial dimension of smooth surface hole of fastening bolt 4.Clamping element 5 matches connection with 4 screw thread of fastening bolt by exit orifice 52, and
Inner hole 51 and 4 clearance fit of fastening bolt, therefore by fastening bolt 4 towards when the rotation of turntable 1, clamping element 5 is not with fastening bolt 4
Rotation and rotate, it is only mobile towards turntable 1 with fastening bolt 4, until clamping element 5 is resisted against in the peripheral wall surfaces of turntable 1, it is ensured that
The clamping face face turntable 1 of clamping element 5, clamping element 5 and the contact area of turntable 1 are big, between clamping element 5 and turntable 1
Frictional force it is big, so that the limit of turntable 1 is fixed between two clamping elements 5 by the screwing forces of two fastening bolts 4.By
In processing the big inner hole 51 of radial dimension out of radial dimension small exit orifice 52, radial dimension differs the difficulty of bigger processing more
Greatly, in the present embodiment, the radial dimension of inner hole 51 is 0.1mm bigger than the radial dimension of fastening bolt 4, easy to process, but due to
Clamping element 5 glances off under the effect of gravity, causes inner hole 51 to be in contact with the fastening bolt 4 of rotation and generates cunning
Therefore kinetic force of friction, in the present embodiment, clamps member so that clamping element 5 be made to rotate with the rotation of fastening bolt 4
The lower section of part 5 is equipped with guide pad 7.Guide pad 7 is fixed on mounting platform 2, and the gap between guide pad 7 and clamping element 5
No more than 0.5mm, for preventing clamping element 5 excessive with the angle of the rotation of fastening bolt 4, it is ensured that clamping element 5 is resisted against
There is certain contact area after turntable 1.When clamping element 5 is turned to fastening bolt 4 to be contacted with guide pad 7, then can not
It continues to rotate, thus avoid the angle of the clamping deflecting facet of clamping element 5 excessive, the face for causing clamping element 5 to contact with turntable 1
Product is small, and frictional force is small, and clamping is built on the sand.Blind hole is located on the center line of clamping element 5, keeps the clamping face of clamping element 5 uniform
It is pressurized.
As shown in Figure 1, being laid with multiple turntable limiting blocks 8, rotary disk limitation along the circumferentially equidistant of turntable 1 on mounting platform 2
Gap between 1 peripheral wall surfaces of block 8 and turntable is no more than 0.1mm, for carrying out radial limit to turntable 1.Avoid turntable 1 radially
It shifts.
As shown in Figure 1, the head of fastening bolt 4 is equipped with the rotating rod for rotational fastener bolt 4, on mounting platform 2
Equipped with for providing the escape groove 6 of rotation space to rotating rod.
In the present embodiment, casing to be processed is casing, and casing is placed directly on turntable 1, by casing from
Body gravity is fixed on turntable 1.Optionally, turntable 1 is equipped with for positioning and the clamping device of clamping casing.Casing is positioned
It is clamped on clamping device and is processed.Optionally, turntable 1 is equipped with circumferential scale marker, in order to obtain the rotation of turntable 1
The turned position of angle and turntable 1.Clamping element 5 is equipped with the mark for being directed toward 1 high scale of turntable mark.Casing positioning dress
After being sandwiched on clamping device, by the zero graduation on turntable 1 it is opposite with the mark on clamping element 5 and by turntable 1 limit fix
Between two clamping elements 5.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of rotating-table apparatus, including be installed on casing drilling hole machine tool mounting platform (2), be installed on the mounting platform
(2) turntable (1) and be used for the turntable (1) limiting locking to the turntable (1) that casing assembly positions are used on
On casing carry out drilling processing rotary disk limitation device, which is characterized in that
The rotary disk limitation device includes the rotary disk limitation mechanism being installed on the mounting platform (2), the rotary disk limitation machine
Structure is relatively groups of two-by-two to be laid in the turntable (1) periphery,
The rotary disk limitation mechanism includes brake bracket (3), the diameter along the turntable (1) being fixed on the mounting platform (2)
To the fastening bolt (4) being arranged on the brake bracket (3) and it is installed on the fastening bolt (4) described for being resisted against
Clamping element (5) in the peripheral wall surfaces of turntable (1),
Along the tapped through hole of the turntable (1) being radially provided with for wearing the fastening bolt (4) on the brake bracket (3),
The fastening bolt (4) rotates towards the turntable (1), thus drive the clamping element (5) mobile towards the turntable (1), into
And it is resisted against the clamping element (5) in the peripheral wall surfaces of the turntable (1), pass through the institute of the rotary disk limitation mechanism of opposite laying
Clamping element (5) opposite force is stated to clamp the turntable (1).
2. rotating-table apparatus according to claim 1, which is characterized in that
The clamping face that the clamping element (5) is used to be resisted against in the peripheral wall surfaces of the turntable (1) uses and the turntable (1)
The mutually matched arc surface of peripheral wall surfaces.
3. rotating-table apparatus according to claim 2, which is characterized in that
The radian in the clamping face of the clamping element (5) is 15 degree of -30 degree.
4. rotating-table apparatus according to claim 2, which is characterized in that
The clamping element (5) is equipped with the blind hole for being sheathed on the clamping element (5) on the fastening bolt (4),
The blind hole is made of interconnected inner hole (51) and exit orifice (52), the exit orifice (52) and the fastening bolt (4) screw thread
Matching connection, the inner hole (51) are the radial dimension of smooth surface hole that radial dimension is greater than the fastening bolt (4).
5. rotating-table apparatus according to claim 4, which is characterized in that
The lower section of the clamping element (5) is equipped with guide pad (7), and the guide pad (7) is fixed on the mounting platform (2),
And the gap between the guide pad (7) and the clamping element (5) is no more than 0.5mm, for preventing the clamping element (5)
The angle rotated with the fastening bolt (4) is excessive.
6. rotating-table apparatus according to claim 1, which is characterized in that
Multiple turntable limiting blocks (8), the turntable are laid with along the circumferentially equidistant of the turntable (1) on the mounting platform (2)
Gap between limited block (8) and turntable (1) peripheral wall surfaces is no more than 0.1mm, for carrying out radial limit to the turntable (1).
7. rotating-table apparatus according to claim 1, which is characterized in that
The head of the fastening bolt (4) is equipped with the rotating rod for the fastening bolt (4) rotation force, and the installation is flat
Platform (2) is equipped with for providing the escape groove (6) of rotation space to the rotating rod.
8. rotating-table apparatus according to claim 1, which is characterized in that
The turntable (1) is equipped with for positioning and the clamping device of clamping casing.
9. rotating-table apparatus according to claim 1, which is characterized in that
The turntable (1) is equipped with circumferential scale marker, in order to obtain the angle and the turntable that the turntable (1) rotates
(1) turned position.
10. a kind of casing drilling processing device, which is characterized in that including any rotating-table apparatus of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358329.8A CN110064774B (en) | 2019-04-30 | 2019-04-30 | Rotary disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358329.8A CN110064774B (en) | 2019-04-30 | 2019-04-30 | Rotary disc device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110064774A true CN110064774A (en) | 2019-07-30 |
| CN110064774B CN110064774B (en) | 2020-07-24 |
Family
ID=67369717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910358329.8A Active CN110064774B (en) | 2019-04-30 | 2019-04-30 | Rotary disc device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110064774B (en) |
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| CN202411964U (en) * | 2012-01-12 | 2012-09-05 | 河南科技大学 | Graduated tool for machining shaft parts |
| CN204221239U (en) * | 2014-11-06 | 2015-03-25 | 国家电网公司 | Rotating-table apparatus in automatic welder(welding machine) on cross slide seat |
| CN204504890U (en) * | 2015-01-13 | 2015-07-29 | 南京兴农齿轮制造有限公司 | A kind of Manual rotary calibration locating turntable device |
| CN205380462U (en) * | 2015-12-14 | 2016-07-13 | 贵州风雷航空军械有限责任公司 | Cartridge boring jig of part |
| CN106513747A (en) * | 2015-10-24 | 2017-03-22 | 重庆侨立管道制造有限公司 | Rotary expansion drilling combined vertical numerical control machine tool |
| CN208391043U (en) * | 2018-04-20 | 2019-01-18 | 江苏华信预应力制品有限公司 | Circle anchor slab halving hole boring grab |
| CN208513803U (en) * | 2018-05-21 | 2019-02-19 | 中航动力株洲航空零部件制造有限公司 | Fixture |
| CN208528279U (en) * | 2018-04-28 | 2019-02-22 | 新乡豫新车辆换热设备有限公司 | A kind of core group weldering rotary turnplate device |
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2019
- 2019-04-30 CN CN201910358329.8A patent/CN110064774B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040107805A1 (en) * | 1998-02-24 | 2004-06-10 | Mikron Sa Agno | Rotary indexing machine |
| CN101486149A (en) * | 2008-01-18 | 2009-07-22 | 洪敦猛 | Turntable |
| CN201881167U (en) * | 2010-12-22 | 2011-06-29 | 重庆渝通机械有限公司 | Fast pressing device |
| CN202411964U (en) * | 2012-01-12 | 2012-09-05 | 河南科技大学 | Graduated tool for machining shaft parts |
| CN204221239U (en) * | 2014-11-06 | 2015-03-25 | 国家电网公司 | Rotating-table apparatus in automatic welder(welding machine) on cross slide seat |
| CN204504890U (en) * | 2015-01-13 | 2015-07-29 | 南京兴农齿轮制造有限公司 | A kind of Manual rotary calibration locating turntable device |
| CN106513747A (en) * | 2015-10-24 | 2017-03-22 | 重庆侨立管道制造有限公司 | Rotary expansion drilling combined vertical numerical control machine tool |
| CN205380462U (en) * | 2015-12-14 | 2016-07-13 | 贵州风雷航空军械有限责任公司 | Cartridge boring jig of part |
| CN208391043U (en) * | 2018-04-20 | 2019-01-18 | 江苏华信预应力制品有限公司 | Circle anchor slab halving hole boring grab |
| CN208528279U (en) * | 2018-04-28 | 2019-02-22 | 新乡豫新车辆换热设备有限公司 | A kind of core group weldering rotary turnplate device |
| CN208513803U (en) * | 2018-05-21 | 2019-02-19 | 中航动力株洲航空零部件制造有限公司 | Fixture |
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| Publication number | Publication date |
|---|---|
| CN110064774B (en) | 2020-07-24 |
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