CN101450388B - Chuck special for turning - Google Patents
Chuck special for turning Download PDFInfo
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- CN101450388B CN101450388B CN2007101506896A CN200710150689A CN101450388B CN 101450388 B CN101450388 B CN 101450388B CN 2007101506896 A CN2007101506896 A CN 2007101506896A CN 200710150689 A CN200710150689 A CN 200710150689A CN 101450388 B CN101450388 B CN 101450388B
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- Prior art keywords
- pawl
- chuck
- hydraulic pressure
- hydraulic
- workpiece
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Abstract
The invention discloses a special turning chuck, which comprises a chuck body fixed on a machine tool spindle, and jaws uniformly distributed on the side of the chuck body, wherein the jaws comprise sheet-supported jaws and hydraulic jaws capable of rotating and expanding/contracting; the sheet-supported jaws are fixedly arranged on the side of the chuck body; the inner-side cambered surface of each sheet-supported jaw fits the excircle surface on one side of a workpiece; the hydraulic jaws are connected with a piston rod in a hydraulic cylinder body; the hydraulic cylinder body is fixed on the chuck body and is communicated with a hydraulic system; the piston rod has a structure capable of realizing expansion/contraction and rotation; and the hydraulic jaws follows the expansion/contraction and rotation of the piston rod to finish loosening, rotating and compressing the other side of the workpiece. The chuck has the advantages that the chuck used for installing and clamping a brake disc is convenient for installing and clamping, fast to install and clamp, high in installing-clamping precision, capable of realizing accurate positioning and improving labor production efficiency and applicable to mass production.
Description
Technical field
What the present invention relates to is the turning chuck, particularly be a kind of chuck special of turning automobile brake disc.
Background technology
Automobile brake disc is the critical component on the brake device for car, and brake disc is used for the support tire rotation, thus to the spin balancing index of brake disc strict demand should be arranged, to guarantee the security performance of automobile.Want to produce qualified brake disc, must guarantee that the thickness of brake disc, flatness reach required precision from manufacturing process.Brake disc is formed by a plurality of, brake disc after the casting, its surface, internal diameter all have certain roughness, and each face all is very important datum level, so brake disc should turning could be produced high-quality product fast on high frock of precision and lathe.In order accurately to locate, reach the requirement of brake disc thickness, flatness, select numerically controlled lathe to carry out turning.But common scroll chuck is unsuitable for processing the such workpiece of crossing high-precision requirement of above-mentioned brake disc on the numerically controlled lathe, because common scroll chuck can not precision positioning also make workpiece deformation easily at the machining high-precision brake disc, does not guarantee required precision.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, provide a kind of and ask heart chucking power to realize rapid-mounted automatically, have a kind of chuck special for turning that to guarantee the brake disc requirement on machining accuracy of supplemental support location with hydraulic control.
The technical scheme that solves the problems of the technologies described above is: a kind of chuck special for turning, this chuck special for turning comprises: be fixed on chuck body on the machine tool chief axis, be positioned at equally distributed claw on the chuck body side, described claw includes: thin plate support claw, can rotary extension hydraulic pressure give birth to pawl; Described thin plate supports claw and is installed on the chuck body side, and the periphery on side of its inboard cambered surface and workpiece coincide; Described hydraulic pressure is given birth to pawl and is connected on the interior piston rod of hydraulic cylinder, hydraulic cylinder is fixed on the chuck body and is communicated with hydraulic system, piston rod has the structure that can realize flexible rotation, hydraulic pressure give birth to pawl along with the flexible rotation of piston rod finish unclamp, action in the rotation, another side of workpiece pressing.
The invention has the beneficial effects as follows: with the chuck of the present invention brake disc that is installed, be installed conveniently, the speed that is installed is fast, and the precision that is installed height can be realized accurately locating, and the raising labor productivity is applicable to production in enormous quantities.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is an A-A cutaway view among Fig. 1;
Fig. 3 is a figure hydraulic cylinder partial enlarged drawing;
Fig. 4 is that the workpiece brake disc shows datum level figure.
" to the explanation of sequence number in the accompanying drawing "
1: hydraulic pressure is given birth to pawl 2: thin plate supports claw 3: gusseted piece 4: limited block
5: supplemental support 6: piston rod 7: hydraulic cylinder 8: spacer pin
9: piston 10,11: screw 12: central shaft 13: horizontal oil pocket
14: chuck body 16: workpiece 17,18: nut 19: assist location piece
20: hydraulic pressure is given birth to corpus unguis 21: briquetting 22: supporting pin 23: helicla flute
24: check valve 25,26: vertical oil pocket
A, b: into and out of hydraulic fluid port
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is a front view of the present invention; Fig. 2 is Figure 1A-A cutaway view; Fig. 3 is a figure hydraulic cylinder partial enlarged drawing; Fig. 4 is that the workpiece brake disc shows datum level figure.
As shown in Figure 1 and Figure 2, the invention provides a kind of chuck special for turning, this chuck special for turning comprises: be fixed on chuck body 14 on the machine tool chief axis, be positioned at equally distributed claw on chuck body 14 sides, described claw includes: thin plate support claw 2, can rotary extension hydraulic pressure give birth to pawl 1; Described thin plate supports claw 2 and is installed on chuck body 14 sides, and the cylindrical E face on 16 1 side D of its inboard cambered surface and workpiece coincide; Described hydraulic pressure is given birth to pawl 1 and is connected on the piston rod 6 in the hydraulic cylinder 7, hydraulic cylinder 7 is fixed on the chuck body 14 and is communicated with hydraulic system, piston rod 6 has the structure that can realize flexible rotation, hydraulic pressure give birth to pawl 1 along with piston rod 6 flexible rotations finish unclamp, action in the rotation, workpiece pressing 16 another side C.
Described thin plate supports claw 2 usefulness screws 10 and is installed on chuck body 14 sides.
The present invention also includes assist location pawl 4, and this assist location pawl 4 evenly distributes and is installed on chuck body 14 sides, and assist location pawl 4 inboard cambered surfaces and workpiece 16 another side C face cylindrical F faces coincide.
Described assist location pawl 4 usefulness screws 11 are installed on chuck body 14 sides.
The present invention also includes assist location piece 19, these assist location piece 19 protrusions are arranged on three bights of the gusseted piece 3 under the living pawl 1 of hydraulic pressure, this gusseted piece 3 is installed in middle part, chuck body 14 sides, 16 1 sides of end face supporting workpiece D face of assist location piece 19.
Described assist location piece 19 constitutes with gusseted piece 3 one; Assist location piece 19 also can constitute with gusseted piece 3 in split, and assist location piece 19 usefulness screws 17 are installed on the gusseted piece 3 as shown in Figure 1 and Figure 2.Assist location piece 19 prevents that the living pawl 1 of hydraulic pressure from compressing the back workpiece deformation under protruding and being arranged on the living pawl 1 of hydraulic pressure, is implemented in the very little gap and just can asks heart precision positioning automatically,
Described hydraulic pressure is given birth to pawl 1 and is comprised living corpus unguis 20 of hydraulic pressure and supporting pin 22; The middle part that described hydraulic pressure is given birth to corpus unguis 20 is fixedly connected on piston rod 6 ends, and it is the briquettings 21 that are pressed on the workpiece 16 that hydraulic pressure is given birth to corpus unguis 20 1 sides, and its opposite side is fixed with supporting pin 22; Described supporting pin 22 1 ends are fixed on hydraulic pressure and give birth on the corpus unguis 20, and contact was on the end face of gripper shoe 5 when supporting pin 22 other ends were pressed on the workpiece 16 along with briquetting 21, and this gripper shoe 5 is fixedly connected on hydraulic cylinder 7 sidewalls.
Described supporting pin 22 is pressed in workpiece 16 for briquetting 21 just with the length that gripper shoe 5 contacts, and the stroke of limited piston 9 prevents that the living corpus unguis 20 of hydraulic pressure is with the workpiece compressive strain.
The structures of described piston rod 6 flexible rotations are: piston rod 6 one ends are connected on the piston 9 in the hydraulic cylinder 7, the external cylindrical surface of piston 9 is provided with helicla flute 23, be installed in the helicla flute that is assemblied in piston 9 23 of spacer pin 8 slips on hydraulic cylinder 7 inwalls, on the hydraulic cylinder 7 of piston 9 both sides, be respectively arranged with oil inlet and outlet a, b.
The pressure oil of described hydraulic system (figure does not show) enters in the hydraulic cylinder 7 from oil inlet and outlet a, b, piston 9 realizes the reciprocating while under the pressure oil effect, drive piston rod 6 and hydraulic pressure give birth to corpus unguis 20 finish unclamp, the action on workpiece pressing 16 another side C faces; Helicla flute 23 on spacer pin 8 and the piston 9 makes piston 9 finish rotation simultaneously reciprocating, drives piston rod 6 and hydraulic pressure and gives birth to pawl 1 and finish and unclamp workpiece 16 back rotations, is convenient to the function of card engaging workpiece 16.
Described thin plate support claw 2 and hydraulic pressure give birth to pawl 1 be respectively 3 uniform, support claw 2 and hydraulic pressure give birth to pawl 1 each other angle be 60 degree; Thin board type supports claw 2 and selects for use the good springiness material to make.
Described assist location pawl 4 be 3 uniform, this assist location pawl 4 is arranged on thin plate and supports claw 2 and hydraulic pressure and give birth to and depart from thin plate between the pawl 1 to support claw 2 angles be 15 degree places.
Described chuck body 14 inside are provided with horizontal oil pocket 13 and two vertical oil pockets 25,26; Described horizontal oil pocket 13 is arranged on chuck body 14 central shafts 12, and laterally oil pocket 13 1 ends connect hydraulic system, and its other end connects two vertical oil pockets 25,26; Described two state vertical oil pocket 25,26 other ends connect respectively hydraulic cylinder 7 into and out of hydraulic fluid port a, b, in two vertical oil pockets 25,26, the opposite check valve of structure equidirectional 24 is set respectively.
The structure of above-mentioned check valve 24 comprises valve body; In this valve body, be provided with spring and ball.Ball is opened when oil pressure reaches certain value, and hydraulic oil enters in the valve body, and check valve relies on a spring that initial reset power is provided, and forces the ball valve-off, thereby plays oppositely by effect.Check valve 24 control oil-feed and oil returns.
Below the course of work of the present invention is described:
The workpiece that the present invention is installed is a brake disc, and this brake disc is by up and down two sides C, D; External cylindrical surface F, the E of both sides up and down.Each face is all very important, adopting " turning of special chuck " that brake disc is carried out its thin plate of turning supports claw 2 and selects for use elastomeric material to make, during clamping work pieces, thin plate support claw 2 can be deformed into the arc heart location of asking automatically steps up workpiece, on this holding power, do not make the work distortion, give birth to 1 workpiece pressing of pawl by hydraulic pressure, guaranteed the essence at precision positioning center like this.When workpiece is put into chuck of the present invention, workpiece supports on the claw 2 at three thin plates, stroke is very short just can the precision positioning center, rotation piston rod 6 drives the living pawl 1 of hydraulic pressure and pushes down workpiece in hydraulic cylinder 7 then, begin to process, regulate and control the living pawl 1 pine rotation of hydraulic pressure with the hydraulic cylinder oil return after processing and take off workpiece, finish the whole process of the processing that once is installed.
Claims (6)
1. chuck special for turning, this chuck special for turning comprises: be fixed on chuck body on the machine tool chief axis, be positioned at equally distributed claw on the chuck body side, it is characterized in that described claw includes: thin plate supports the hydraulic pressure of claw (2), energy rotary extension and gives birth to pawl (1); Described thin plate supports claw (2) and is installed on chuck body (14) side, and cylindrical (E) face on its inboard cambered surface and (16) sides of workpiece (D) coincide; Described hydraulic pressure is given birth to pawl (1) and is connected on the interior piston rod (6) of hydraulic cylinder (7), hydraulic cylinder (7) is fixed on the last and connection hydraulic system of chuck body (14), piston rod (6) has the structure that can realize flexible rotation, hydraulic pressure give birth to pawl (1) along with the flexible rotation of piston rod (6) finish unclamp, action in the rotation, another side of workpiece pressing (16) (C);
Also include assist location pawl (4), this assist location pawl (4) evenly distributes and is installed on chuck body (14) side, and the inboard cambered surface of assist location pawl (4) and another side of workpiece (16) (C) cylindrical (F) face coincide;
Also include assist location piece (19), this assist location piece (19) protrusion is arranged on three bights of the gusseted piece (3) under the living pawl of hydraulic pressure (1), this gusseted piece (3) is installed in middle part, chuck body (14) side, (16) sides of end face supporting workpiece (D) of assist location piece (19).
2. according to a kind of chuck special for turning described in the claim 1, it is characterized in that described hydraulic pressure is given birth to pawl (1) and comprised living corpus unguis (20) of hydraulic pressure and supporting pin (22); The middle part that described hydraulic pressure is given birth to corpus unguis (20) is fixedly connected on piston rod (6) end, and it is the briquettings (21) that are pressed on the workpiece (16) that hydraulic pressure is given birth to corpus unguis (20) one sides, and its opposite side is fixed with supporting pin (22); Described supporting pin (22) one ends are fixed on hydraulic pressure and give birth on the corpus unguis (20), contact was on the end face of gripper shoe (5) when supporting pin (22) other end was pressed on the workpiece (16) along with briquetting (21), and this gripper shoe (5) is fixedly connected on hydraulic cylinder (7) sidewall.
3. according to a kind of chuck special for turning described in the claim 1, it is characterized in that, the structure of the flexible rotation of described piston rod (6) is: piston rod (6) one ends are connected on the interior piston (9) of hydraulic cylinder (7), the external cylindrical surface of piston (9) is provided with helicla flute (23), be installed in the helicla flute that is assemblied in piston (9) (23) of spacer pin (8) slip on hydraulic cylinder (7) inwall, on the hydraulic cylinder (7) of piston (9) both sides, be respectively arranged with into and out of hydraulic fluid port (a, b).
4. according to a kind of chuck special for turning described in the claim 1, it is characterized in that, described thin plate support claw (2) and hydraulic pressure give birth to pawl (1) be respectively 3 uniform, support the living pawl of claw (2) and hydraulic pressure (1) each other angle be 60 to spend; Thin board type supports claw (2) and selects for use elastomeric material to make.
5. according to a kind of chuck special for turning described in the claim 1, it is characterized in that, described assist location pawl (4) be 3 uniform, this assist location pawl (4) is arranged on thin plate and supports claw (2) and hydraulic pressure and give birth to that to depart from thin plate support claw (2) angle between the pawl (1) be 15 degree places.
6. according to a kind of chuck special for turning described in the claim 1, it is characterized in that described chuck body (14) inside is provided with horizontal oil pocket (13) and two vertical oil pockets (25,26); Described horizontal oil pocket (13) is arranged on chuck body (14) central shaft (12), and laterally oil pocket (13) one ends connect hydraulic system, and its other end connects an end of two vertical oil pockets (25,26); Described two vertical oil pockets (25,26) other end connects the oil inlet and outlet (a, b) of hydraulic cylinder (7) respectively, in two vertical oil pockets (25,26) the opposite check valve of structure equidirectional (24) is set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101506896A CN101450388B (en) | 2007-12-03 | 2007-12-03 | Chuck special for turning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101506896A CN101450388B (en) | 2007-12-03 | 2007-12-03 | Chuck special for turning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101450388A CN101450388A (en) | 2009-06-10 |
| CN101450388B true CN101450388B (en) | 2011-11-30 |
Family
ID=40732972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101506896A Expired - Fee Related CN101450388B (en) | 2007-12-03 | 2007-12-03 | Chuck special for turning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101450388B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672208A (en) * | 2012-05-15 | 2012-09-19 | 常州亚通杰威电机有限公司 | Automatic clamping and loosening device and method for workpiece on lathe |
| CN104002150B (en) * | 2014-05-23 | 2016-09-14 | 苏州创丰精密五金有限公司 | Fluting workpiece punching jig |
| CN104759712A (en) * | 2015-04-30 | 2015-07-08 | 天津中德职业技术学院 | Rotational hydraulic external clamping turning chuck |
| CN106270564B (en) * | 2016-08-31 | 2018-11-27 | 安徽霍仕达机电有限责任公司 | A kind of brake disc processing specialized nc machine tool |
| DE102018108306A1 (en) * | 2018-04-09 | 2019-10-10 | Schaeffler Technologies AG & Co. KG | Hydrodehnspannwerkzeug |
| CN108436806B (en) * | 2018-05-18 | 2024-02-20 | 福州堂莹机械有限公司 | Safety chuck with guide |
| CN109158422A (en) * | 2018-08-06 | 2019-01-08 | 宁波大学 | A kind of forming device for high-speed rail hole-bored axle from end to end |
| CN110449656B (en) * | 2019-08-14 | 2020-09-22 | 大连重型锻造有限公司 | Cross cutting sawing machine |
| CN111842951B (en) * | 2020-07-22 | 2022-04-22 | 哈电集团（秦皇岛）重型装备有限公司 | Clamping device for machining thickness allowance of sleeper thin plate and machining method |
| CN115255973B (en) * | 2022-08-09 | 2023-09-12 | 共青科技职业学院 | Disc workpiece clamping tool |
| CN116213775A (en) * | 2023-02-27 | 2023-06-06 | 江苏广大鑫盛精密智造有限公司 | Chuck center integrated tool and application method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685844A (en) * | 1969-04-29 | 1972-08-22 | Alfred Ernest Sykes | Workpiece holders |
| DE19925376A1 (en) * | 1999-06-02 | 2000-12-07 | Volkswagen Ag | Clamping device for brake disks or drums, with multi-part radially separable disk serving as force receiver |
| DE102006020274A1 (en) * | 2006-04-27 | 2007-11-08 | Hirschmann Gmbh | Adjustable clamping element |
| CN201150998Y (en) * | 2007-12-03 | 2008-11-19 | 勤威(天津)工业有限公司 | Clamping chuck special for turning |
-
2007
- 2007-12-03 CN CN2007101506896A patent/CN101450388B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685844A (en) * | 1969-04-29 | 1972-08-22 | Alfred Ernest Sykes | Workpiece holders |
| DE19925376A1 (en) * | 1999-06-02 | 2000-12-07 | Volkswagen Ag | Clamping device for brake disks or drums, with multi-part radially separable disk serving as force receiver |
| DE102006020274A1 (en) * | 2006-04-27 | 2007-11-08 | Hirschmann Gmbh | Adjustable clamping element |
| CN201150998Y (en) * | 2007-12-03 | 2008-11-19 | 勤威(天津)工业有限公司 | Clamping chuck special for turning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101450388A (en) | 2009-06-10 |
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Granted publication date: 20111130 Termination date: 20141203 |
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| EXPY | Termination of patent right or utility model |