CN106392871B - Grinding machine floating dog chuck - Google Patents
Grinding machine floating dog chuck Download PDFInfo
- Publication number
- CN106392871B CN106392871B CN201611025605.1A CN201611025605A CN106392871B CN 106392871 B CN106392871 B CN 106392871B CN 201611025605 A CN201611025605 A CN 201611025605A CN 106392871 B CN106392871 B CN 106392871B
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- Prior art keywords
- piston
- disk body
- grinding machine
- claw
- phase
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
Abstract
The present invention relates to jig technical field, especially a kind of grinding machine floating dog chuck, including：Disk body, claw, crank, the angle of crack active section and post-boost phase is 70 110 °, powered phase one end is fixedly connected with spherical surface floating head, inner sleeve, driving device, the claw is slidably arranged in by bottom pawl sliding block in T connected in stars, the inner sleeve is slidably arranged in the axis hole of disk body, the crank is hinged on by powered phase and post-boost phase junction on disk body, post-boost phase is set to be arranged in the driver slot of bottom claw-plate lower part, the floating head setting of the spherical surface in powered phase is set to be formed between upper ball cover and lower ball cover in folder spherical space, the driving device is fixed on the downside of disk body, up and down motion for driving inner sleeve.The present invention provides a kind of grinding machine floating dog chuck, workpiece to be processed is after the completion of clamped, larger amount of floating, gives bottom pawl larger beat function, has stronger stationkeeping ability.
Description
Technical field
The present invention relates to jig technical field, especially a kind of grinding machine floating dog chuck.
Background technology
Existing mechanical grinding machine chuck is limited by self structure, processing workpiece configurations and centralized positioning benchmark not
When concentric, floating aligning cannot be generated, bottom pawl does not have beat function, stationkeeping ability difference etc., do not realize automation clamping function,
Significantly limit the degree of automation of equipment, service efficiency undercut low precision.
Invention content
The technical problem to be solved by the present invention is to：It is limited, is being added by self structure in order to solve existing grinding machine chuck
When the workpiece configurations of work and centralized positioning benchmark decentraction, floating aligning function cannot be generated, bottom pawl does not have beat function, positioning
Can force difference etc., the problem of significantly limiting the use of chuck, the present invention provides a kind of grinding machine floating dog chuck, driving devices
The powered phase movement that power drive powered phase and post-boost phase L-shaped crank are automatically entered by outside drives stepping up and pine for chuck
It relaxes, the spherical surface of powered phase is raised the nose above water to breathe and the cooperation of upper ball cover and lower ball cover, makes workpiece to be processed when clamped, generates larger diameter
It to amount of floating, gives bottom pawl larger beat function, there is stronger Self-aligning stationkeeping ability to cut while can pass through outside
Electrical equipment control realizes that automation clamping, the automatic loading and unloading of full intelligence effectively realized substantially increase production efficiency.
The technical solution adopted by the present invention to solve the technical problems is：A kind of grinding machine floating dog chuck, including：
Disk body, the disk body are equipped with the T connected in stars of at least two horizontal directions, and the disk body center has an axis hole,
Claw, the claw include the bottom pawl and dewclaw of fixed setting, and the bottom pawl includes bottom claw-plate and is arranged in bottom pawl
The driver slot of plate lower part, the bottom claw-plate have the bottom pawl sliding block that the T connected in stars with disk body match,
Crank, the crank include powered phase and post-boost phase, and the powered phase and post-boost phase are L-shaped, the powered phase one
End is fixedly connected with spherical surface floating head,
Inner sleeve is fixed with ball cover and lower ball cover in the inner sleeve, folder ball is formed between the upper ball cover and lower ball cover
Space,
Driving device,
The claw is slidably arranged in by bottom pawl sliding block in T connected in stars, and the inner sleeve is slidably arranged in the axis hole of disk body
Interior, the crank is hinged on by powered phase and post-boost phase junction on disk body, makes post-boost phase that the drive in bottom claw-plate lower part be arranged
In dynamic slot, the floating head setting of the spherical surface in powered phase is set to be formed between upper ball cover and lower ball cover in folder spherical space, the driving
Device is fixed on the downside of disk body, the up and down motion for driving inner sleeve.
The angle of wherein powered phase and post-boost phase is preferably 70-110 °.
Specifically, there is a bottom pawl T-slot on above-mentioned bottom claw-plate, slided in the T-slot and be provided with a T-shaped slider, institute
It states T-shaped slider and is detachably fixed with dewclaw and is connect.
Specifically, there is the tooth socket being mutually twisted at above-mentioned dewclaw and the contact surface of bottom pawl.
Specifically, there is an oiling channel, oiling channel side to have pump nozzle in the middle part of above-mentioned bottom claw-plate.
Specifically, above-mentioned grinding machine floating dog chuck further includes dirt-proof boot, is slided successively from top to bottom on the outside of the dirt-proof boot
It is provided with ball cover and lower ball cover.
Specifically, above-mentioned driving device includes：Piston, piston rear cover, piston cylinder and piston protecgulum,
The piston and piston rear cover are sequentially sleeved on the downside of the lower ball cover on the outside of dirt-proof boot, the piston and piston rear cover
It is slidably connected with dirt-proof boot sealing, the piston cylinder is integrally formed with piston rear cover, and the inner sleeve lower end contacts close with piston area
Envelope connection, the piston protecgulum inside and the lateral wall sealing of inner sleeve are slidably connected, and outside and the piston cylinder of piston protecgulum seal
Piston cylinder inner cavity chamber is separated into upper chamber and lower chambers by connection, the piston, the piston cylinder side wall be equipped with upper chamber and
The air admission hole that lower chambers are connected to external drive medium respectively.
Specifically, above-mentioned driving medium is gas or oil.
Specifically, inlet duct is additionally provided on the outside of above-mentioned driving device, the inlet duct includes being arranged outside piston cylinder
Side into compression ring, it is described into being fixed with air inlet ring cowling plate on the downside of compression ring, it is described into be equipped on the outside of compression ring with into being connected on the inside of compression ring
Gas-tpe fitting, described into two groups of liner groups are equipped on the inside of compression ring, two groups of liner groups pass through air admission hole and upper chamber respectively
It is connected to lower chambers.
Specifically, above-mentioned liner group includes the sealing ring that T shapes liner and two groups are used for ring seal, on the T shapes liner
Equipped with the through-hole being connected to gas-tpe fitting, be formed with annular liner space between the T shapes liner and two groups of sealing rings, it is described into
Stomata is connected to annular liner space.
Specifically, the powered phase of above-mentioned crank and post-boost phase are integrally formed, the powered phase and the rotation of post-boost phase junction
Equipped with a latch structure, the latch structure both ends are rotatablely connected there are two fixed block,
The T connected in stars lower part of the disk body is set there are two fixing groove, and the fixed block is fixed in fixing groove.
The beneficial effects of the invention are as follows：The present invention provides a kind of grinding machine floating dog chuck, driving device is led by driving
The powered phase movement of the L-shaped crank of dynamic section and post-boost phase drives stepping up and relaxation, spherical surface floating head and the upper ball of powered phase for chuck
Set and lower ball cover cooperation, make workpiece to be processed when clamped, claw can generate larger amount of floating, give bottom pawl compared with
Big beat function has stronger Self-aligning stationkeeping ability.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of grinding machine floating dog chuck of the present invention；
Fig. 2 is the P-P sectional views of Fig. 1；
Fig. 3 is the stereogram of the disk body of the present invention；
Fig. 4 is the exploded view of the claw of the present invention；
The stereogram of the bottom pawl of Fig. 5 present invention；
The stereogram of the piston cylinder of Fig. 6 present invention；
The stereogram of the T shape liners of Fig. 7 present invention；
The partial exploded view of the crank and disk body of Fig. 8 present invention
In figure：1. disk body, 2. claws, 3. cranks, 4. inner sleeves, 5. dirt-proof boots, 11.T connected in stars, 12. axis holes, 21. bottoms
Pawl, 22. dewclaws, 31. powered phases, 32. post-boost phases, 33. spherical surfaces are raised the nose above water to breathe, 34. latch structures, 35. fixed blocks, 36. fixing grooves, and 41.
Upper ball cover, 42. times ball covers, 43. folder spherical spaces, 61. pistons, 62. piston rear covers, 63. piston cylinders, 64. piston protecgulums, on 65.
Chamber, 66. lower chambers, 67. air admission holes, 71. into compression ring, and 72. air inlet ring cowling plates, 73. gas-tpe fittings, 81.T shape liners, 82. is close
Seal, 83. liner holes, 84. annular liner spaces, 211. bottom claw-plates, 212. driver slots, 213. bottom pawl sliding blocks, 214.T shape slots,
215.T shape nuts, 216. tooth sockets, 217. pump nozzles.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.Wherein piston motion direction
For upper direction, opposite direction is lower direction, and the plane vertical with upper direction is horizontal plane.
As shown in Figs. 1-5, a kind of grinding machine floating dog chuck, including：
Disk body 1, disk body 1 are equipped with the T connected in stars 11 of at least two horizontal directions, and 1 center of disk body has an axis hole 12,
Claw 2, claw 2 include the bottom pawl 21 and dewclaw 22 of fixed setting, and bottom pawl 21 includes bottom claw-plate 211 and is arranged the bottom of at
The driver slot 212 of 211 lower part of claw-plate, bottom claw-plate 211 have the bottom pawl sliding block 213 that the T connected in stars 11 with disk body 1 match, bottom
There is a bottom pawl T-slot 214 on claw-plate 211, slided in T-slot 214 and be provided with a T-shaped slider 215, T-shaped slider 215 and dewclaw
22 are detachably fixed connection by bolt.
Crank 3, crank 3 include powered phase 31 and post-boost phase 32, and powered phase 31 and post-boost phase 32 are L-shaped（It is specific real at this
It applies in example, the angle of powered phase 31 and post-boost phase 32 is 90 °）, 31 one end of powered phase be fixedly connected with spherical surface raise the nose above water to breathe 33,
Inner sleeve 4 is fixed with ball cover 41 and lower ball cover 42 in inner sleeve 4, folder is formed between upper ball cover 41 and lower ball cover 42
Spherical space 43,
Driving device,
Claw 2 is slidably arranged in by bottom pawl sliding block 213 in T connected in stars 11, and inner sleeve 4 is slidably arranged in the axis hole of disk body 1
In 12, crank 3 is hinged on by powered phase 31 and 32 junction of post-boost phase on disk body 1, and post-boost phase 32 is made to be arranged in bottom claw-plate 211
In the driver slot 212 of lower part, 33 setting of the floating head of the spherical surface in powered phase 31 is made to be formed between upper ball cover 41 and lower ball cover 42
It presss from both sides in spherical space 43, driving device is fixed on 1 downside of disk body, the up and down motion for driving inner sleeve 4.
In this embodiment, as shown in figure 8, the powered phase 31 of crank 3 and 32 junction of post-boost phase are tied with a hole
Structure is equipped with latch structure 34 in hole, and 34 both ends of latch structure are rotatably connected to fixed block 35, and 1 lower part of disk body offers fixing groove 36,
Fixed block 35 is placed in fixing groove 36, and is fixed in fixing groove 36 by piston foreboard 64.31 front end of powered phase passes through card
Spring is by 33 fixation of spherical surface floating head, and spherical surface floating head 33 is rectangular, and upper and lower ends face is spherical shape fox face, and certainly, spherical surface floating head 33 also may be used
To be joint ball.
In a specific embodiment, there is the tooth socket 216 being mutually twisted at dewclaw 22 and the contact surface of bottom pawl 21.
In a specific embodiment, there is an oiling channel, oiling channel side to have oiling at bottom claw-plate 211 middle part
Mouth 217.
In a specific embodiment, grinding machine floating dog chuck further includes dirt-proof boot 5, and 5 outside of dirt-proof boot is from top to bottom
Sliding is provided with ball cover 41 and lower ball cover 42 successively.
As shown in figures 1 to 6, in a specific embodiment, driving device includes：Piston 61, piston rear cover 62, piston
Cylinder 63 and piston protecgulum 64,
Piston 61 and piston rear cover 62 are sequentially sleeved on the downside of the lower ball cover 42 in 5 outside of dirt-proof boot, after piston 61 and piston
Lid 62 is slidably connected with the sealing of dirt-proof boot 5, and piston cylinder 63 is integrally formed with piston rear cover 62, and 4 lower end of inner sleeve connects with 61 face of piston
It touches and is tightly connected, 64 inside of piston protecgulum and the lateral wall sealing of inner sleeve 4 are slidably connected, the outside of piston protecgulum 64 and piston cylinder
63 are tightly connected, and 63 inner cavity chamber of piston cylinder is separated into upper chamber 65 and lower chambers 66 by piston 61, and 63 side wall of piston cylinder is equipped with
The air admission hole 67 that upper chamber 65 and lower chambers 66 are connected to extraneous air respectively.
In a specific embodiment, as shown in fig. 6, being additionally provided with inlet duct, inlet duct packet on the outside of driving device
It includes and is arranged in 63 outside of piston cylinder into compression ring 71, be fixed with air inlet ring cowling plate 72 into 71 downside of compression ring, set into 71 outside of compression ring
There is the gas-tpe fitting 73 being connected into 71 inside of compression ring, is equipped with two groups of liner groups into 71 inside of compression ring, two groups of liner groups are led to respectively
Air admission hole 67 is crossed to be connected to upper chamber 65 and lower chambers 66.
In a specific embodiment, as shown in fig. 7, liner group, which includes T shapes liner 81 and two groups, is used for ring seal
Sealing ring sealing ring 82, T shapes liner 81 is equipped with the liner hole 83 that is connected to gas-tpe fitting 73, T shapes liner 81 and two groups
Annular liner space 84 is formed between sealing ring 82, air admission hole 67 is connected to annular liner space 84.
In a specific embodiment, as shown in figure 8, the powered phase 31 of crank 3 and post-boost phase 32 are integrally formed, actively
Section 31 and the rotation of 32 junction of post-boost phase are equipped with a latch structure 34, and 34 both ends of latch structure are rotatablely connected there are two fixed block 35,
11 lower part of T connected in stars of disk body 1 is set there are two fixing groove 36, and fixed block 35 is fixed in fixing groove 36.
When in use, it between workpiece to be polished being placed on claw 2, is inflated to upper chamber 65 by gas-tpe fitting 73, this
When piston 61 move downward, ball cover 41 and lower ball cover 42 move downward in drive, at the same make spherical surface raise the nose above water to breathe 33 downwards, drive actively
Section 31 is rotated around latch structure 34, makes post-boost phase 32 that claw 2 be driven to be clamped to 1 center movement of disk body workpiece to be polished is clamped
Cheng Zhong, spherical surface raises the nose above water to breathe 33 to adjust its position according to stressing conditions, and completes to be clamped, need to unclamp when polish workpiece when, it is logical
It crosses gas-tpe fitting 73 to inflate to lower chambers 66, action is opposite with action is stepped up.
In the description of the present invention, it is to be understood that, term "center", "upper", "lower", "front", "rear", " left side ",
The orientation or position of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ", " radial direction ", " circumferential direction "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot manage
Solution is limitation of the present invention.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (9)
1. a kind of grinding machine floating dog chuck, it is characterised in that including：
Disk body（1）, the disk body（1）It is equipped with the T connected in stars of at least two horizontal directions（11）, the disk body（1）Center has
There is an axis hole（12）,
Claw（2）, the claw（2）Bottom pawl including fixed setting（21）And dewclaw（22）, the bottom pawl（21）Including bottom pawl
Plate（211）With setting in bottom claw-plate（211）The driver slot of lower part（212）, the bottom claw-plate（211）Have and disk body（1）T shapes
Groove（11）The bottom pawl sliding block to match（213）,
Crank（3）, the crank（3）Including powered phase（31）And post-boost phase（32）, the powered phase（31）And post-boost phase（32）
It is L-shaped, the powered phase（31）One end is fixedly connected with spherical surface floating head（33）,
Inner sleeve（4）, the inner sleeve（4）Inside it is fixed with ball cover（41）With lower ball cover（42）, the upper ball cover（41）With lower ball cover
（42）Between be formed with folder spherical space（43）,
Driving device,
The claw（2）Pass through bottom pawl sliding block（213）It is slidably arranged in T connected in stars（11）It is interior, the inner sleeve（4）It is slidably arranged in
Disk body（1）Axis hole（12）It is interior, the crank（3）Pass through powered phase（31）And post-boost phase（32）Junction is hinged on disk body（1）
On, make post-boost phase（32）It is arranged in bottom claw-plate（211）The driver slot of lower part（212）It is interior, make powered phase（31）On spherical surface raise the nose above water to breathe
（33）It is arranged in upper ball cover（41）With lower ball cover（42）Between the folder spherical space that is formed（43）Interior, the driving device is fixed on disk
Body（1）Downside, for driving inner sleeve（4）Up and down motion.
2. a kind of grinding machine floating dog chuck according to claim 1, it is characterised in that：The bottom claw-plate（211）On have
One bottom pawl T-slot（214）, the bottom pawl T-slot（214）Interior sliding is provided with a T-shaped slider（215）, the T-shaped slider
（215）With dewclaw（22）It is detachably fixed connection.
3. a kind of grinding machine floating dog chuck according to claim 2, it is characterised in that：The dewclaw（22）With bottom pawl（21）
Contact surface at there is the tooth socket that is mutually twisted（216）.
4. a kind of grinding machine floating dog chuck according to claim 3, it is characterised in that：The bottom claw-plate（211）Middle part has
There are an oiling channel, oiling channel side that there is pump nozzle（217）.
5. a kind of grinding machine floating dog chuck according to claim 1, it is characterised in that：The grinding machine floating dog chuck also wraps
Include dirt-proof boot（5）, the dirt-proof boot（5）Sliding is provided with ball cover successively from top to bottom in outside（41）With lower ball cover（42）.
6. a kind of grinding machine floating dog chuck according to claim 5, it is characterised in that：The driving device includes：Piston
（61）, piston rear cover（62）, piston cylinder（63）With piston protecgulum（64）,
The piston（61）With piston rear cover（62）It is sequentially sleeved at dirt-proof boot（5）The lower ball cover in outside（42）Downside, the work
Plug（61）With piston rear cover（62）With dirt-proof boot（5）Sealing is slidably connected, the piston cylinder（63）With piston rear cover（62）One
Molding, the inner sleeve（4）Lower end and piston（61）Face contact is tightly connected, the piston protecgulum（64）Inside and inner sleeve（4）'s
Lateral wall sealing is slidably connected, piston protecgulum（64）Outside and piston cylinder（63）It is tightly connected, the piston（61）By piston
Cylinder（63）Inner cavity chamber is separated into upper chamber（65）And lower chambers（66）, the piston cylinder（63）Side wall is equipped with upper chamber（65）With
Lower chambers（66）The air admission hole being connected to respectively with external drive medium（67）.
7. a kind of grinding machine floating dog chuck according to claim 6, it is characterised in that：It is additionally provided on the outside of the driving device
Inlet duct, the inlet duct include being arranged in piston cylinder（63）Outside into compression ring（71）, described into compression ring（71）Downside
It is fixed with air inlet ring cowling plate（72）, described into compression ring（71）Outside be equipped with into compression ring（71）The gas-tpe fitting of inside connection
（73）, described into compression ring（71）Inside is equipped with two groups of liner groups, and two groups of liner groups pass through air admission hole respectively（67）With epicoele
Room（65）And lower chambers（66）Connection.
8. a kind of grinding machine floating dog chuck according to claim 7, it is characterised in that：The liner group includes T shape liners
（81）The sealing ring for being used for ring seal with two groups（82）, the T shapes liner（81）It is equipped with and gas-tpe fitting（73）Connection
Hole（83）, the T shapes liner（81）With two groups of sealing rings（82）Between be formed with annular liner space（84）, the air admission hole
（67）With annular liner space（84）Connection.
9. a kind of grinding machine floating dog chuck according to claim 1, it is characterised in that：The crank（3）Powered phase
（31）And post-boost phase（32）It is integrally formed, the powered phase（31）And post-boost phase（32）Junction rotation is equipped with a latch structure
（34）, the latch structure（34）Respectively there are two fixed blocks for rotation connection at both ends（35）, the disk body（1）T connected in stars（11）Under
Portion is set there are two fixing groove（36）, the fixed block（35）It is fixed at fixing groove（36）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025605.1A CN106392871B (en) | 2016-11-17 | 2016-11-17 | Grinding machine floating dog chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025605.1A CN106392871B (en) | 2016-11-17 | 2016-11-17 | Grinding machine floating dog chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106392871A CN106392871A (en) | 2017-02-15 |
| CN106392871B true CN106392871B (en) | 2018-09-07 |
Family
ID=58068662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611025605.1A Active CN106392871B (en) | 2016-11-17 | 2016-11-17 | Grinding machine floating dog chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106392871B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953757A (en) * | 2021-12-22 | 2022-01-21 | 倍得福机械科技(常州)股份有限公司 | Pneumatic rear chuck for laser cutting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2388094A1 (en) * | 2009-01-13 | 2011-11-23 | Qingzi Yu | Self-tightening drill chuck |
| CN203281911U (en) * | 2012-12-11 | 2013-11-13 | 重庆信奇建材机械制造有限公司 | Wedge mechanism of hydraulic automatic centering chuck |
| CN204235150U (en) * | 2014-11-06 | 2015-04-01 | 宁夏长兴精密机械有限公司 | Can self-centering jack catchs type hydraulic center frame |
| CN205289785U (en) * | 2015-12-11 | 2016-06-08 | 常州南车汽车零部件有限公司 | Tight chuck in top floats |
| CN206241846U (en) * | 2016-11-17 | 2017-06-13 | 常州倍得福机械科技有限公司 | Grinding machine floating dog chuck |
-
2016
- 2016-11-17 CN CN201611025605.1A patent/CN106392871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2388094A1 (en) * | 2009-01-13 | 2011-11-23 | Qingzi Yu | Self-tightening drill chuck |
| CN203281911U (en) * | 2012-12-11 | 2013-11-13 | 重庆信奇建材机械制造有限公司 | Wedge mechanism of hydraulic automatic centering chuck |
| CN204235150U (en) * | 2014-11-06 | 2015-04-01 | 宁夏长兴精密机械有限公司 | Can self-centering jack catchs type hydraulic center frame |
| CN205289785U (en) * | 2015-12-11 | 2016-06-08 | 常州南车汽车零部件有限公司 | Tight chuck in top floats |
| CN206241846U (en) * | 2016-11-17 | 2017-06-13 | 常州倍得福机械科技有限公司 | Grinding machine floating dog chuck |
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| Publication number | Publication date |
|---|---|
| CN106392871A (en) | 2017-02-15 |
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Address after: 213000 Zhuangcun, Hengshanqiao Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: BEIDEFU MECHANICS AND TECHNOLOGY (CHANGZHOU) CO., LTD. Address before: 213000 No. 8 Zhengda Road, Qishuyan District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU BEIDEFU MACHINERY SCIENCE & TECHNOLOGY CO., LTD. |