CN106424793B - Self-centering hydraulic pressure chuck for annular forging piece - Google Patents
Self-centering hydraulic pressure chuck for annular forging piece Download PDFInfo
- Publication number
- CN106424793B CN106424793B CN201610768781.8A CN201610768781A CN106424793B CN 106424793 B CN106424793 B CN 106424793B CN 201610768781 A CN201610768781 A CN 201610768781A CN 106424793 B CN106424793 B CN 106424793B
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- CN
- China
- Prior art keywords
- claw
- chuck
- tooth plate
- mounting portion
- forging piece
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
Abstract
Present invention discloses a kind of self-centering hydraulic pressure chucks for annular forging piece, the oild chuck includes chuck, several tooth plates angularly extended outward centered on chuck, the pedestal of fixed tooth plate and chuck, fluid pressure drive device on chuck, several claws on tooth plate, and the transmission device for being connected with fluid pressure drive device and driving tooth plate mobile, the claw includes the master jaw being fixedly installed on tooth plate, and it is fixedly installed in the first claw and the second claw on master jaw, first claw is located at one end of neighbouring chuck, second claw is located remotely from one end of chuck, claw mounting portion there are four being set on four angles of master jaw, the corner of the claw mounting portion is equipped with circular chamfering.The present invention can make the corner of claw have displacement space appropriate by the way that circular chamfering is arranged in claw mounting portion, with guarantee claw cambered surface and workpiece inner surface or outer surface fit closely, ensure that the stability of claw clamping.
Description
Technical field
The invention belongs to annular forging piece technical fields, and in particular to a kind of self-centering hydraulic pressure chuck for annular forging piece.
Background technique
International community is higher and higher to the concern of environmental protection in recent years, and thermal power generation will be gradually by hydroelectric generation, the sun
It can generate electricity, replaced nuclear energy power generation and wind-power electricity generation, present wind-power electricity generation project is just in industrialization, scale.Wind-power electricity generation
On floating bearing as a kind of annular forging piece, also with industrialization, scale.
However the annular forging piece of such as floating bearing etc in process people to working efficiency and processing quality
It is required that it is also higher and higher, gradually adopt oild chuck to replace hand chuck, to improve working efficiency, but in oild chuck
In there are workpiece centre be difficult it is coaxial with main shaft rotation center, the adjustment of each Clamping Center all by from vehicle claw come reality
Existing, very inconvenient, there are also when cutting force is larger, clamping jaw chucking power is inadequate, causes waste product that accident, clamping jaw chucking power even occurs
When excessive, workpiece deformation will cause.
Therefore, it is necessary to provide a kind of self-centering hydraulic pressure chucks for annular forging piece in view of the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of self-centering hydraulic pressure chucks for annular forging piece, to improve oild chuck
The processing quality of working efficiency and annular forging piece.
To achieve the goals above, technical solution provided in an embodiment of the present invention is as follows:
A kind of self-centering hydraulic pressure chuck for annular forging piece, the oild chuck include chuck, centered on chuck etc.
The pedestal of several tooth plates, fixed tooth plate and chuck that angle extends outward, is set to tooth at the fluid pressure drive device on chuck
Several claws on plate and the transmission device for being connected with fluid pressure drive device and driving tooth plate mobile, the claw include solid
Dingan County is loaded on the master jaw on tooth plate and the first claw and the second claw that are fixedly installed on master jaw, the first claw position
In one end of neighbouring chuck, the second claw is located remotely from one end of chuck, sets that there are four claws to install on four angles of master jaw
The corner in portion, the claw mounting portion is equipped with circular chamfering.
As a further improvement of the present invention, the claw mounting portion includes the first claw mounting portion of two neighbouring chucks
And the second claw mounting portion far from chuck, the first claw are fixedly installed in respectively in the first claw mounting portion, the second claw point
It is not fixedly installed in the second claw mounting portion, the corner of the first claw mounting portion is equipped with circular first chamfering, institute
The corner for stating the second claw mounting portion is equipped with circular second chamfering.
As a further improvement of the present invention, first claw is being cambered surface towards the one side of chuck, when the first claw
When being installed in the first claw mounting portion, the cambered surface of the first claw can be bonded to each other with the rounded outer surface of annular forging piece.
As a further improvement of the present invention, second claw is cambered surface in the one side backwards to chuck, when the second claw
When being installed in the second claw mounting portion, the cambered surface of the second claw can mutually be pasted with the round rounded internal surface of annular forging piece
It closes.
As a further improvement of the present invention, the transmission device include the guiding trestle being connected with fluid pressure drive device,
And the lever boosting mechanism of connection guiding trestle and tooth plate, guiding trestle are connected for by hydraulic-driven with fluid pressure drive device
The up and down motion of device is changed into horizontal axis movement, and is amplified by lever boosting mechanism to driving force, to control tooth
The axial movement of plate and claw.
As a further improvement of the present invention, the fluid pressure drive device include positioned at chuck central bottom oil cylinder and
Piston positioned at oil cylinder top drives piston to move up and down in the hollow space of chuck by oil cylinder, and will by transmission device
The up and down motion of piston is converted into the axial movement of tooth plate and claw.
As a further improvement of the present invention, the oild chuck includes:
First state, when oil cylinder drives piston upwards, guiding trestle and lever boosting mechanism driving tooth plate are along card
The axis of disk is protruding, and the second clamping jaw props up workpiece inner ring；
Second state, when piston moves downward, guiding trestle and lever boosting mechanism driving tooth plate are along card for oil cylinder driving
The axis of disk clamps workpiece outer ring to contract, the first clamping jaw.
As a further improvement of the present invention, under the first state, the chucking power of the second clamping jaw are as follows:
FFolder=FTop(L1/L2) * h, FTop=PA=P* (D/2)2；
Wherein, P is the hydraulic fluid pressure of oil cylinder, and A is effective compression area, and D is cylinder diameter, L1、L2Respectively lever increases
Two brachiums in force mechanisms, h are transmission efficiency.
As a further improvement of the present invention, under second state, the chucking power of the first clamping jaw are as follows:
FFolder=FIt draws(L1/L2) * h, FIt draws=PA=P* ((D/2)2-(d/2)2)；
Wherein, P is the hydraulic fluid pressure of oil cylinder, and A is effective compression area, and D is cylinder diameter, and d is the piston in piston
Shank diameter, L1、L2Two brachiums respectively in lever boosting mechanism, h are transmission efficiency.
The beneficial effects of the present invention are:
By the way that circular chamfering is arranged in claw mounting portion, the corner of claw can be made to have displacement space appropriate, to protect
The cambered surface of card pawl and the inner surface of workpiece or outer surface fit closely, and ensure that the stability of claw clamping；
Self-centering hydraulic pressure chuck clamping stroke and chucking power are larger, work piece hoisting put it is to the rear there is no need to manually adjust in
The heart can realize self-centering clamping workpiece by oild chuck, and the big of clamping jaw chucking power can be changed by adjusting input hydraulic pressure oil pressure
It is small, have many advantages, such as that compact-sized, easy to maintenance, clamping range is big, easy to adjust, chucking power is adjustable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of oild chuck in first embodiment of the invention；
Fig. 2 is the planar structure schematic diagram of chuck and tooth plate in first embodiment of the invention；
Fig. 3 is the schematic perspective view of chuck and tooth plate in second embodiment of the invention；
Fig. 4 is the transmission principle cross-sectional view of chuck and tooth plate in second embodiment of the invention；
Fig. 5 is the schematic perspective view of chuck in second embodiment of the invention；
Fig. 6 is the configuration schematic diagram of chuck and tooth plate in second embodiment of the invention；
Fig. 7 is another visual angle configuration schematic diagram of chuck and tooth plate in second embodiment of the invention；
Fig. 8 is the mounting structure schematic diagram of tooth plate in second embodiment of the invention；
Fig. 9 is the partial structural diagram of tooth plate in second embodiment of the invention；
Figure 10 is the mounting structure schematic diagram of tooth plate and master jaw in second embodiment of the invention；
Figure 11 is the planar structure schematic diagram of master jaw in third embodiment of the invention；
Figure 12 is the mounting structure schematic diagram of master jaw and claw in third embodiment of the invention.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
Join shown in Fig. 1, Fig. 2, during self-centering hydraulic pressure chuck includes chuck 1, with chuck 1 is in first embodiment of the invention
The pedestal 3 of several tooth plates 2, fixed tooth plate 2 and chuck 1 that the heart angularly extends outward, the hydraulic-driven dress on chuck 1
It sets, several claws 4 on tooth plate 2 and the transmission device for being connected with fluid pressure drive device and driving tooth plate 2 mobile, with
Under elaborate to the structure and working principle of each component of oild chuck.
It is six that tooth plate 2 in present embodiment is correspondingly arranged with corresponding claw 4, and six tooth plates 2 circumferentially uniformly divide
It is distributed in around chuck 1, correspondence is equipped with a claw 4 on each tooth plate 2, and the angle between the adjacent tooth plate 2 of every two is
60°.Certainly, the tooth plate 2 and claw 4 of other quantity also can be set in other embodiments, however it is not limited to present embodiment
In six, herein no longer one by one citing be illustrated.
It is in hollow setting among chuck 1, fluid pressure drive device is installed on the hollow space of chuck 1, specifically, hydraulic-driven
Device includes the piston 52 positioned at the oil cylinder 51 of 1 central bottom of chuck and positioned at oil cylinder top, drives piston by oil cylinder 51
52 move up and down in the hollow space of chuck 1, and convert tooth plate 2 and claw 4 for the up and down motion of piston by transmission device
Axial movement.
In present embodiment transmission device include with piston 52 be connected guiding trestle 61 and connect guiding trestle 61 and
The lever boosting mechanism 62 of tooth plate 2, guiding trestle 61 are connected for the up and down motion of piston 52 to be changed into level with piston 52
It is axially moved, and driving force is amplified by lever boosting mechanism 62, to control the axial movement of tooth plate 2 and claw 4.
2 upper surface of tooth plate in present embodiment is evenly distributed with several first tooth sockets 201, the section of the first tooth socket 201
The rectangle equally arranged, accordingly, the lower surface of claw 4 are correspondingly provided with the second tooth socket being meshed with the first tooth socket 201
(not shown), the shape of the second tooth socket is complementary with the shape of the first tooth socket 201, the rectangle that section also equally arranges, and leads to
Cross the engaging so that claw 4 to be fixedly installed on tooth plate 2 of the first tooth socket and the second tooth socket.
Claw 4 includes the master jaw 41 being fixedly installed on tooth plate 2 and first be fixedly installed on master jaw 41 card
Pawl 42 and the second claw 43, the first claw 42 are located at one end of neighbouring chuck 1, and the second claw 43 is located remotely from one end of chuck 1.
The working principle of self-centering hydraulic pressure chuck in present embodiment specifically:
When oil cylinder 51 drives piston 52 to move upwards, guiding trestle 61 and lever boosting mechanism 62 drive tooth plate 2 along
The axis of chuck is protruding, and the second clamping jaw 43 props up workpiece inner ring；
When oil cylinder 51 drives piston 52 to move downward, guiding trestle 61 and lever boosting mechanism 62 drive tooth plate 2 along
The axis of chuck clamps workpiece outer ring to contract, the first clamping jaw 42.
The chucking power of six claws 4 is identical and moves synchronously self-centering, and work piece hoisting puts that the rear there is no need to manually adjust
Whole center, can clamping workpiece by six pawl hydraulic self-centerings.
The first clamping jaw 42 or the second clamping jaw can be changed by adjusting the hydraulic fluid pressure of input oil cylinder 51 in present embodiment
The size of 43 chucking powers, specifically:
When oil cylinder 51 drives piston 52 to move upwards, the power output of oil cylinder 51 are as follows:
FTop=PA=P* (D/2)2；
Wherein, P is the hydraulic fluid pressure of oil cylinder, and A is effective compression area, and D is cylinder diameter；
The chucking power of second clamping jaw 43 at this time are as follows:
FFolder=FTop(L1/L2)*h；
Wherein, L1、L2Two brachiums respectively in lever boosting mechanism, h are transmission efficiency.
When oil cylinder 51 drives piston 52 to move downward, the power output of oil cylinder 51 are as follows:
FIt draws=PA=P* ((D/2)2-(d/2)2)；
Wherein, P is the hydraulic fluid pressure of oil cylinder, and A is effective compression area, and D is cylinder diameter, and d is the piston in piston
Shank diameter；
The chucking power of first clamping jaw 42 at this time are as follows:
FFolder=FIt draws(L1/L2)*h；
Wherein, L1、L2Two brachiums respectively in lever boosting mechanism, h are transmission efficiency.
Join shown in Fig. 3-Fig. 7, tooth plate 2 is coupled by linear guide with chuck 1 in second embodiment of the invention,
It elaborates below.
To join shown in Fig. 5, the chuck 1 in present embodiment is circumferentially correspondingly arranged on several mounting portions 11 and spacer portion 12,
Mounting portion 11 is arranged in inclined-plane, and in a certain angle with the vertical direction of chuck 1, which preferably may be configured as 30 °~60 °
Between angle, such as in the present embodiment the vertical direction of mounting portion 11 and chuck in 45 ° of settings, and 11 top of mounting portion away from
Excentric distance is less than the distance at distance from bottom center, and mounting portion 11 is from top to bottom tilted towards outer setting.
Join shown in Fig. 6, Fig. 7, the first fixing piece 13 is fixedly installed on mounting portion 11, the first fixing piece 13 is solid by bolt
Loaded on inclined mounting portion 11, the first fixing piece 13 is equipped with the first fixing groove 131 for Dingan County, fixes in the first fixing groove 131
First guide rail 14 is installed, one end of the first guide rail 14 and connector 15 is slidably connected.In addition, the other end and tooth of connector 15
Plate 2 is fixedly connected.
As shown in connection with fig. 8, the lower section of tooth plate 2 is fixedly installed with several second fixing pieces 21, the lower section of the second fixing piece 21
It is equipped with the second fixing groove 211 along the extending direction of tooth plate 2, in addition, being fixedly installed with the being located at immediately below tooth plate 2 on pedestal
Two guide rails 22, the two sides of the second guide rail 22 are correspondingly arranged on container 221, and the second fixing piece 21 passes through the second fixing groove of lower section
211 are mutually clamped with the containers 221 of 22 two sides of the second guide rail, to realize that the second fixing piece 21 slides on the second guide rail 22.
Since tooth plate 2 and the second fixing piece 21 are fixedly mounted, the second guide rail 22 then can be used as the slide rail of tooth plate 2, to drive tooth plate 2
Stretching or contraction.
Ginseng Fig. 4 show the schematic diagram of oild chuck in present embodiment, drives piston up-down by oil cylinder 51, living
The up and down motion of piston is changed into the transverse movement of tooth plate 2 by plug, the first guide rail 14 and transmission device (not shown), and then is adjusted
The stretching or contraction of whole tooth plate 2, to clamp workpiece to be processed.
Preferably, join Fig. 9 shown in, in present embodiment on tooth plate 2 section of first tooth socket 201 equally arrange it is straight
The trapezoidal setting in angle, accordingly, the shape of the second tooth socket of the lower surface of claw 4 are complementary with the shape of the first tooth socket 201, also in straight
The trapezoidal setting in angle.Section is the tooth socket of right-angled trapezium compared with section is the tooth socket of rectangle, and the distance between tooth socket top increases,
The inclined-plane of right-angled trapezium can play guiding role when assembly, so that the first tooth socket and the second tooth socket are at a fully engaged, essence when assembly
Degree requires lower, improves assembly efficiency.
In addition, tooth plate 2 is equipped with two and ranked first tooth socket 201 in present embodiment, and two ranked first and be equipped between tooth socket 201
Section is in the fitting groove 202 of " convex " type, and as shown in connection with fig. 10, the bottom of master jaw 41 passes through the department of assembly of " convex " type in claw 4
411 are fixedly mounted with tooth plate 2, and the second tooth socket is located at the two sides of department of assembly 411.When tooth plate and claw are installed, first by department of assembly
411 from the fitting groove 202 that side is installed into tooth plate 2, and then claw 4 and department of assembly 411 are fixedly mounted, can be by claw 4
It is fixedly installed on tooth plate 2.
Join shown in Figure 11, Figure 12, in third embodiment of the present invention, the top of master jaw 41 is pacified equipped with several claws
Dress portion, sets in present embodiment on four angles of master jaw 41 there are four claw mounting portion, and the including two neighbouring chucks
Second claw mounting portion 402 of one claw mounting portion 401 and separate chuck, the first claw 42 are fixedly installed in the first claw respectively
In mounting portion 401, the second claw 43 is fixedly installed in respectively in the second claw mounting portion 402.
Specifically, in the present embodiment, the edge of the master jaw 41 between two the first claw mounting portions 401 is arc
Face, the first claw 42 is being cambered surface towards the one side of chuck, when the first claw 42 is installed in the first claw mounting portion 401,
Cambered surface in the cambered surface of first claw 42, master jaw 41 can be bonded to each other with the rounded outer surface of annular forging piece, to guarantee
One claw 42 can have sufficiently large chucking power.
In addition, the second claw 43 is cambered surface in the one side backwards to chuck, when the second claw 43 is installed on the installation of the second claw
When in portion 402, the cambered surface of the second claw 43 can be bonded to each other with the rounded internal surface of annular forging piece, to guarantee the second claw 43
There can be sufficiently large chucking power.
Further, the corner of the first claw mounting portion 401 is equipped with circular first chamfering in the present embodiment
4011, the corner of the second claw mounting portion 402 is equipped with circular second chamfering 4021, is fallen by the first chamfering 4011 and second
The setting at angle 4021 can make the first claw 42 or the corner of the second claw 43 have displacement space appropriate, to guarantee the first card
The inner surface of the cambered surface and workpiece of pawl 42 or the second claw 43 or outer surface fit closely, and ensure that the stability of claw clamping.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of self-centering hydraulic pressure chuck for annular forging piece, which is characterized in that the oild chuck includes chuck, with chuck
Centered on angularly extend outward several tooth plates, fixed tooth plate and chuck pedestal, on chuck hydraulic-driven dress
It sets, several claws on tooth plate and the transmission device for being connected with fluid pressure drive device and driving tooth plate mobile, the card
Pawl includes the master jaw being fixedly installed on tooth plate and the first claw and the second claw that are fixedly installed on master jaw, and
One claw is located at one end of neighbouring chuck, and the second claw is located remotely from one end of chuck, set on four angles of master jaw there are four
The corner of claw mounting portion, the claw mounting portion is equipped with circular chamfering；
The transmission device includes the guiding trestle being connected with fluid pressure drive device and the lever for connecting guiding trestle and tooth plate
Force-increasing mechanism, guiding trestle are connected for the up and down motion of fluid pressure drive device to be changed into horizontal axis with fluid pressure drive device
Movement, and driving force is amplified by lever boosting mechanism, to control the axial movement of tooth plate and claw；
The fluid pressure drive device includes the piston positioned at the oil cylinder of chuck central bottom and positioned at oil cylinder top, passes through oil cylinder
It drives piston to move up and down in the hollow space of chuck, and tooth plate and card is converted for the up and down motion of piston by transmission device
The axial movement of pawl；
The oild chuck includes:
First state, when oil cylinder drives piston upwards, guiding trestle and lever boosting mechanism driving tooth plate are along chuck
Axis is protruding, and the second clamping jaw props up workpiece inner ring；
Second state, when piston moves downward, guiding trestle and lever boosting mechanism driving tooth plate are along chuck for oil cylinder driving
Axis clamps workpiece outer ring to contract, the first clamping jaw.
2. the self-centering hydraulic pressure chuck according to claim 1 for annular forging piece, which is characterized in that the claw installation
Portion includes that the first claw mounting portion of two neighbouring chucks and the second claw mounting portion far from chuck, the first claw are fixed respectively
It is installed in the first claw mounting portion, the second claw is fixedly installed in respectively in the second claw mounting portion, the first claw peace
The corner in dress portion is equipped with circular first chamfering, and the corner of the second claw mounting portion is equipped with circular second chamfering.
3. the self-centering hydraulic pressure chuck according to claim 2 for annular forging piece, which is characterized in that first claw
It is being cambered surface towards the one side of chuck, when the first claw is installed in the first claw mounting portion, the cambered surface of the first claw can
It is bonded to each other with the rounded outer surface of annular forging piece.
4. the self-centering hydraulic pressure chuck according to claim 2 for annular forging piece, which is characterized in that second claw
It is cambered surface in the one side backwards to chuck, when the second claw is installed in the second claw mounting portion, the cambered surface of the second claw can
It is bonded to each other with the rounded internal surface of annular forging piece.
5. the self-centering hydraulic pressure chuck according to claim 4 for annular forging piece, which is characterized in that the first state
Under, the chucking power of the second clamping jaw are as follows:
FFolder=FTop(L1/L2) * h, FTop=PA=P* (D/2)2；
Wherein, P is the hydraulic fluid pressure of oil cylinder, and A is effective compression area, and D is cylinder diameter, L1、L2Respectively lever booster
Two brachiums in structure, h are transmission efficiency.
6. the self-centering hydraulic pressure chuck according to claim 4 for annular forging piece, which is characterized in that second state
Under, the chucking power of the first clamping jaw are as follows:
FFolder=FIt draws(L1/L2) * h, FIt draws=PA=P* ((D/2)2-(d/2)2)；
Wherein, P is the hydraulic fluid pressure of oil cylinder, and A is effective compression area, and D is cylinder diameter, and d is that the piston rod in piston is straight
Diameter, L1、L2Two brachiums respectively in lever boosting mechanism, h are transmission efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768781.8A CN106424793B (en) | 2016-08-30 | 2016-08-30 | Self-centering hydraulic pressure chuck for annular forging piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768781.8A CN106424793B (en) | 2016-08-30 | 2016-08-30 | Self-centering hydraulic pressure chuck for annular forging piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106424793A CN106424793A (en) | 2017-02-22 |
| CN106424793B true CN106424793B (en) | 2018-12-04 |
Family
ID=58090550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768781.8A Active CN106424793B (en) | 2016-08-30 | 2016-08-30 | Self-centering hydraulic pressure chuck for annular forging piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106424793B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1564703A (en) * | 1975-11-24 | 1980-04-10 | Jacobs Mfg Co | Drill chucks |
| DE8620531U1 (en) * | 1986-07-31 | 1987-12-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
| JP4103962B2 (en) * | 2005-08-04 | 2008-06-18 | 住友電工ハードメタル株式会社 | Bite and comb blade lathe using it |
| CN204381467U (en) * | 2015-01-06 | 2015-06-10 | 江燕 | A kind of adjustable eccentric chuck |
| CN204545478U (en) * | 2015-03-30 | 2015-08-12 | 漳州福田精密机械有限公司 | A kind of Digit Control Machine Tool oild chuck |
| CN204934659U (en) * | 2015-09-23 | 2016-01-06 | 山东豪迈机械科技股份有限公司 | A kind of compound claw and chuck |
| CN206588355U (en) * | 2016-08-30 | 2017-10-27 | 江苏荣程锻造股份有限公司 | Self-centering hydraulic pressure chuck for annular forging piece |
-
2016
- 2016-08-30 CN CN201610768781.8A patent/CN106424793B/en active Active
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| Publication number | Publication date |
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| CN106424793A (en) | 2017-02-22 |
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