CN104057115A - Swing jaw chuck - Google Patents
Swing jaw chuck Download PDFInfo
- Publication number
- CN104057115A CN104057115A CN201410284493.6A CN201410284493A CN104057115A CN 104057115 A CN104057115 A CN 104057115A CN 201410284493 A CN201410284493 A CN 201410284493A CN 104057115 A CN104057115 A CN 104057115A
- Authority
- CN
- China
- Prior art keywords
- chuck
- claw
- rocking arm
- voussoir
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/14—Chucks with simultaneously-acting jaws, whether or not also individually adjustable involving the use of centrifugal force
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention relates to a swing jaw chuck. A workpiece is clamped by a swing jaw mode, and the jaw clamping range is conveniently adjusted; when the workpiee is clamped by the jaw, the centrifugal force generated by the jaw is less than the centrifugal force generated by a rocker arm, therefore, the clamping force of the chuck at a high-speed state can be increased instead; in addition, the chuck also has the various functions that the jaw is telescopic and a tip is arranged at the center and the like.
Description
Technical field
The present invention relates to machine tool field, especially the chuck of machine tool, Digit Control Machine Tool.
Background technology
Chuck is main fixture, the especially lathe of machine tool, Digit Control Machine Tool holding workpiece, according to statistics, has onboard more than 90% part to use chuck clamping; Presently used chuck, mainly contains two kinds of forms by power classification: hand chuck and automatic chuck, and hand chuck is generally configured on machine tool, and automatic chuck is configured on Digit Control Machine Tool; Hand chuck and automatic chuck are structurally completely different, and hand chuck is by manual rotation T-shaped spanner, then stirs the spiral end fluted disc in chuck body, and spiral end fluted disc drives claw, make the centripetal or centrifugal slip of claw, thus clamping or unclamp workpiece; Automatic chuck using pneumatic, electronic or hydraulic pressure as power source, drives a wedge by executive component conventionally, drives claw by wedge, makes the centripetal or centrifugal slip of claw, thus clamping or unclamp workpiece.Due to the mechanism's difference of the two, the clamping range of workpiece is also had to difference, the clamping range of hand chuck is generally from several millimeters to hundreds of millimeter, and scope is very large; And automatic chuck only has several millimeters to tens millimeters, be up to tens millimeters, scope is very little; In order to solve this contradiction, general automatic chuck is mostly furnished with movable jaw, and by changing movable jaw to expand the scope of holding workpiece, still, this method is not very good.
Along with developing rapidly of Numeric Control Technology, the speed of mainshaft of lathe is more and more higher, due to the centrifugal force of chuck jaws self, in the time that the rotating speed of chuck raises, the chucking power of chuck will decline, and along with the continuous increase of chuck rotating speed, the chucking power of chuck will sharply decline, this phenomenon, for automatic chuck, is a fatal defect.
Summary of the invention
The problem that automatic chuck holding workpiece scope is little in order to overcome, chucking power declines under fast state, the invention provides a kind of pendulum claw chuck, this chuck adopts and swings claw mode clamping workpiece, claw clamping range is easy to adjust, in the time of claw clamping workpiece, the centrifugal force that claw produces is less than the centrifugal force producing with rocking arm, therefore, can increase on the contrary in the chucking power of fast state lower chuck; In addition, this chuck also has the multiple functions such as claw is flexible, center installation is top.
The technical scheme that the present invention takes is: chuck connects with lathe, and chuck seat is connected with chuck body by B screw, forms a chuck abdominal cavity between chuck seat and chuck body, and this chuck has two claws at least; The front portion of claw be called claw refer to, be suspended in chuck body before, the rear portion of claw is called jaw body, is inlaid in the hole of chuck body, jaw body is cylindrical structural, jaw body is fixedly connected with the Intraabdominal rocking arm of chuck; ejector pin is equipped with in rocking arm outside; B spring is housed in ejector pin; the inner side of rocking arm is inclined-plane; the inclined-plane of rocking arm inner side and the inclined-plane of voussoir match; the inclined-plane quantity of voussoir is identical with the quantity of rocking arm, claw; voussoir is connected with connecting rod, and connecting rod is connected with the power source of chuck by double-screw bolt; In the time of the powered connecting rod of chuck, connecting rod just promotes voussoir and together advances, and under the effect on voussoir inclined-plane; rocking arm swings laterally, rocking arm drives the jaw body rotation of claw, jaw body drive claw point in side oscillation; and multiple claw refers to swing to the inside simultaneously, makes workpiece clamped; In the time that the power of chuck pulls connecting rod, connecting rod pulls voussoir together to retreat, and rocking arm swings to the inside under the effect of ejector pin, and rocking arm drives the jaw body rotation of claw, and jaw body drives claw to point to outer side oscillation, makes workpiece released.
The invention has the beneficial effects as follows, claw clamping range is easy to adjust, can increase on the contrary in the chucking power of fast state lower chuck, and this chuck can also be served as telescopic claw chuck and be used, simple in structure.
Brief description of the drawings
Fig. 1 is pendulum claw chuck profile schematic diagram.
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1.
Fig. 3 is that schematic diagram is looked on the right side of Fig. 1.
Fig. 4 is the H-H cross-sectional schematic of Fig. 3.
Fig. 5 is the J-J cross-sectional schematic of Fig. 4.
Fig. 6 is another view of Fig. 4.
Fig. 7 is that schematic diagram is looked on the right side of Fig. 6.
Fig. 8 is the K-K cross-sectional schematic of Fig. 6.
Fig. 9 is that pendulum claw chuck fills top structural representation.
Figure 10 is that schematic diagram is looked on the right side of Fig. 9.
Figure 11 is pendulum its claw of claw chuck retractable structural representation again.
Figure 12 is another view of Figure 11.
Figure 13 is that pendulum claw chuck dress drives top structural representation.
Figure 14 is the top local structure for amplifying schematic diagram of the driving of Figure 13.
Figure 15 is that schematic diagram is looked on the right side of Figure 13.
Figure 16 is another view of Figure 15.
In figure: 1. double-screw bolt, 2. connecting rod, 3. gland, 4.A screw, 5. chuck seat, 6. nut, 7. bolt, 8. rocking arm, 9. centring sleeve, 10. guide pin bushing, 11. claws, 12.A spring, 13. workpiece, 14. chuck bodies, 15. ejector pins, 16.B spring, 17.B screw, 18. voussoirs, 19. cushion blocks, 20. is top, 21. glands, 22. clamps, 23.C spring, 24. guide rods, 25. steel balls, 26. actuating sleeves, 27.D spring, 28. covers are top, 29. lathes.
Detailed description of the invention
In Fig. 1～Fig. 5, chuck connects with lathe (29), and chuck seat (5) is connected with chuck body (14) by B screw (17), between chuck seat (5) and chuck body (14), forms a chuck abdominal cavity, and this chuck has two claws (11) at least, the front portion of claw (11) is called claw and refers to, be suspended in chuck body (14) before, the rear portion of claw (11) is called jaw body, be inlaid in the hole of chuck body (14), jaw body is cylindrical structural, jaw body is fixedly connected with the Intraabdominal rocking arm of chuck (8), ejector pin (15) is equipped with in rocking arm (8) outside, B spring (16) is housed in ejector pin (15), the inner side of rocking arm (8) is inclined-plane, the inclined-plane of rocking arm (8) inner side and the inclined-plane of voussoir (18) match, the inclined-plane quantity of voussoir (18) and rocking arm (8), the quantity of claw (11) is identical, voussoir (18) is connected with connecting rod (2), connecting rod (2) is connected with the power source of chuck by double-screw bolt (1), as shown in Figure 6 to 8, in the time of the powered connecting rod (2) of chuck, connecting rod (2) just promotes voussoir (18) and together advances, under the effect on voussoir (18) inclined-plane, rocking arm (8) swings laterally, rocking arm (8) drives the jaw body rotation of claw (11), jaw body drive claw point in side oscillation, and multiple claw refers to swing to the inside simultaneously, makes workpiece (13) clamped, in the time that the power of chuck pulls connecting rod (2), connecting rod (2) pulls voussoir (18) together to retreat, rocking arm (8) swings to the inside under the effect of ejector pin (15), rocking arm (8) drives the jaw body rotation of claw (11), jaw body drives claw to point to outer side oscillation, makes workpiece (13) released.
In Fig. 6～embodiment illustrated in fig. 8, claw (11) is combined by end tooth with rocking arm (8), felt relieved by the centring sleeve including (9), bolt (7) screws and is connected with the screw thread of rocking arm (8) through claw (11), nut (6) is equipped with in the end of bolt (7), prevent that with nut (6) bolt (7) from coming off, between claw (11) and rocking arm (8), A spring (12) is housed; In the time that bolt (7) is locked, claw (11) and rocking arm (8) are just in being fastenedly connected state; In the time that bolt (7) unclamps, under the effect of A spring (12), claw (11) is thrown off with the end tooth of rocking arm (8), just can regulate the relative angle of claw (11) and rocking arm (8), regulates the clamping range of claw (11) to workpiece (13).
Fig. 9, embodiment illustrated in fig. 10 in, top (20) are equipped with by gland (21) in chuck hub position, to improve the clamping precision of workpiece (13).
In the embodiment shown in fig. 11, connecting rod (2), the center of voussoir (18) is provided with through hole, the footpath at connecting rod (2) middle part is provided with multiple apertures towards periphery, in each aperture, place a steel ball (25), in the tail hole of chuck seat (5), be provided with toroidal cavity III, toroidal cavity III can be coincide with steel ball (25), connecting rod (2) front end, in the hole of voussoir (18), be placed with C spring (23), guide rod (24) is installed on connecting rod (2), the center of voussoir (18) and C spring (23), the afterbody of guide rod (24) is provided with cannelure, cannelure can coincide with steel ball (25), the front end of guide rod (24) is being fastenedly connected clamp (22), and the periphery of clamp (22) is inserted and is embedded in the translot of rocking arm (8), and meanwhile, the jaw body at claw (11) rear portion lengthens, and chuck abdominal cavity expands, so that claw (11) is further overhanging, as shown in figure 12, in the time of the powered connecting rod (2) of chuck, connecting rod (2) just promotes voussoir (18) and advances, simultaneously, steel ball (25) promotes guide rod (24), and guide rod (24) just promotes clamp (22), rocking arm (8), claw (11) and associated part and advances in the lump, reaches the limit of behind position at guide rod (24), guide rod (24), clamp (22), rocking arm (8), claw (11) and the motion of associated part stop, and claw (11) is extended to extreme position, now, steel ball (25) exits the cannelure of guide rod (24) afterbody in the toroidal cavity III of chuck seat (5) afterbody, steel ball (25) no longer plays a driving role to guide rod (24), but, connecting rod (2) continues to promote voussoir (18) and advances, under the effect on voussoir (18) inclined-plane, rocking arm (8) swings laterally, rocking arm (8) drives the jaw body rotation of claw (11), jaw body drive claw point in side oscillation, and multiple claw refers to swing to the inside simultaneously, makes workpiece (13) clamped, in the time that the power of chuck pulls connecting rod (2), connecting rod (2) pulls voussoir (18) together to retreat, rocking arm (8) swings to the inside under the effect of ejector pin (15), rocking arm (8) drives the jaw body rotation of claw (11), jaw body drives claw to point to outer side oscillation, make workpiece (13) released, in this course, due to the effect of C spring (23), guide rod (24) is motion not, until claw points to outer side-sway during to extreme position, steel ball (25) exits the toroidal cavity III of chuck seat (5) afterbody in the cannelure of guide rod (24) afterbody, steel ball (25) starts drag guide rod (24) and retreats, make rocking arm (8), claw (11) and associated part, connecting rod (2), voussoir (18) together retreats, until falling back on extreme position, claw (11) just all stops, completed claw (11) overhanging-to clamp-to unclamp-the whole cyclic process such as retreat.
In Figure 13～embodiment illustrated in fig. 16, chuck hub position be equipped with end face drive top, end face drive top by actuating sleeve (26), overlap top (28) and D spring (27) formation, overlapping top (28) can axial float.
As shown in Fig. 9, Figure 11, Figure 12, Figure 13, connecting rod (2) is radially leaving gap with gland (3), voussoir (18), and therefore, claw (11) is when clamping work pieces (13), claw (11) is radially also floating, and has so just ensured top positioning precision.
Can find out in the drawings, on claw (11), be inlaid with cushion block (19), by changing the material, shape, hardness etc. of cushion block (19), can be suitable for clamping different workpiece.
Can find out in the drawings, between chuck body (14) and claw (11), guide pin bushing (10) is housed.
Claims (8)
1. pendulum claw chuck, chuck seat (5) is connected with chuck body (14) by B screw (17), between chuck seat (5) and chuck body (14), form a chuck abdominal cavity, this chuck has two claws (11) at least, it is characterized in that: the front portion of claw (11) is called claw and refers to, be suspended in chuck body (14) before, the rear portion of claw (11) is called jaw body, be inlaid in the hole of chuck body (14), jaw body is cylindrical structural, jaw body is fixedly connected with the Intraabdominal rocking arm of chuck (8), ejector pin (15) is equipped with in rocking arm (8) outside, B spring (16) is housed in ejector pin (15), the inner side of rocking arm (8) is inclined-plane, the inclined-plane of rocking arm (8) inner side and the inclined-plane of voussoir (18) match, the inclined-plane quantity of voussoir (18) and rocking arm (8), the quantity of claw (11) is identical, voussoir (18) is connected with connecting rod (2), connecting rod (2) is connected with the power source of chuck by double-screw bolt (1).
2. Ju pendulum claw chuck claimed in claim 1, it is characterized in that: claw (11) is combined by end tooth with rocking arm (8), felt relieved by the centring sleeve including (9), bolt (7) screws and is connected with the screw thread of rocking arm (8) through claw (11), nut (6) is equipped with in the end of bolt (7), prevent that with nut (6) bolt (7) from coming off, between claw (11) and rocking arm (8), A spring (12) is housed.
3. the pendulum claw chuck described in a Ju claim 1,2, is characterized in that: by gland (21), top (20) are housed in chuck hub position.
4. a Ju claim 1, pendulum claw chuck described in 2, connecting rod (2), the center of voussoir (18) is provided with through hole, the footpath at connecting rod (2) middle part is provided with multiple apertures towards periphery, in each aperture, place a steel ball (25), in the tail hole of chuck seat (5), be provided with toroidal cavity III, toroidal cavity III can be coincide with steel ball (25), connecting rod (2) front end, in the hole of voussoir (18), be placed with C spring (23), guide rod (24) is installed on connecting rod (2), the center of voussoir (18) and C spring (23), the afterbody of guide rod (24) is provided with cannelure, cannelure can coincide with steel ball (25), it is characterized in that: the front end of guide rod (24) is being fastenedly connected clamp (22), the periphery of clamp (22) is inserted and is embedded in the translot of rocking arm (8), simultaneously, the jaw body at claw (11) rear portion lengthens, chuck abdominal cavity expands, so that claw (11) is further overhanging.
5. the pendulum claw chuck described in a Ju claim 1,4, it is characterized in that: end face is housed in chuck hub position and drives top, end face drive top by actuating sleeve (26), overlap top (28) and D spring (27) formation, overlapping top (28) can axial float.
6. the pendulum claw chuck described in a Ju claim 1,3,5, is characterized in that: connecting rod (2) is radially leaving gap with gland (3), voussoir (18).
7. Ju pendulum claw chuck claimed in claim 1, is characterized in that: on claw (11), be inlaid with cushion block (19).
8. Ju pendulum claw chuck claimed in claim 1, is characterized in that: between chuck body (14) and claw (11), guide pin bushing (10) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284493.6A CN104057115B (en) | 2014-06-24 | 2014-06-24 | Pendulum claw chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284493.6A CN104057115B (en) | 2014-06-24 | 2014-06-24 | Pendulum claw chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104057115A true CN104057115A (en) | 2014-09-24 |
| CN104057115B CN104057115B (en) | 2016-09-21 |
Family
ID=51545208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410284493.6A Active CN104057115B (en) | 2014-06-24 | 2014-06-24 | Pendulum claw chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104057115B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414580A (en) * | 2015-12-02 | 2016-03-23 | 浙江德福精密驱动制造有限公司 | Tip chuck for lathe |
| CN107998475A (en) * | 2017-10-23 | 2018-05-08 | 苏州安充医疗科技有限公司 | A kind of fast positioning attaching/detaching apparatus for infusion bottle |
| CN108030973A (en) * | 2017-10-23 | 2018-05-15 | 苏州安充医疗科技有限公司 | A kind of automatic positioning attaching/detaching apparatus for cillin bottle |
| CN109176099A (en) * | 2018-10-25 | 2019-01-11 | 重庆升科精锻科技有限公司 | Four-axis milling center shaft-like workpiece floating clamping mechanism driving device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA74683C2 (en) * | 2004-02-26 | 2006-01-16 | Kyiv Polytechnical Institute | Lathe chuck |
| CN202317090U (en) * | 2011-11-23 | 2012-07-11 | 江苏无锡建华机床附件集团有限公司 | Centrifugal force compensation power chuck |
| CN203390231U (en) * | 2013-08-07 | 2014-01-15 | 何博 | Centrifugal clamping chuck |
| CN203578809U (en) * | 2013-12-02 | 2014-05-07 | 宁波市爱托普气动液压有限公司 | Hollow power chuck |
| CN203900528U (en) * | 2014-06-24 | 2014-10-29 | 党金行 | Swinging claw type chuck |
-
2014
- 2014-06-24 CN CN201410284493.6A patent/CN104057115B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA74683C2 (en) * | 2004-02-26 | 2006-01-16 | Kyiv Polytechnical Institute | Lathe chuck |
| CN202317090U (en) * | 2011-11-23 | 2012-07-11 | 江苏无锡建华机床附件集团有限公司 | Centrifugal force compensation power chuck |
| CN203390231U (en) * | 2013-08-07 | 2014-01-15 | 何博 | Centrifugal clamping chuck |
| CN203578809U (en) * | 2013-12-02 | 2014-05-07 | 宁波市爱托普气动液压有限公司 | Hollow power chuck |
| CN203900528U (en) * | 2014-06-24 | 2014-10-29 | 党金行 | Swinging claw type chuck |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414580A (en) * | 2015-12-02 | 2016-03-23 | 浙江德福精密驱动制造有限公司 | Tip chuck for lathe |
| CN107998475A (en) * | 2017-10-23 | 2018-05-08 | 苏州安充医疗科技有限公司 | A kind of fast positioning attaching/detaching apparatus for infusion bottle |
| CN108030973A (en) * | 2017-10-23 | 2018-05-15 | 苏州安充医疗科技有限公司 | A kind of automatic positioning attaching/detaching apparatus for cillin bottle |
| CN109176099A (en) * | 2018-10-25 | 2019-01-11 | 重庆升科精锻科技有限公司 | Four-axis milling center shaft-like workpiece floating clamping mechanism driving device |
| CN109176099B (en) * | 2018-10-25 | 2021-02-19 | 重庆升科精锻科技有限公司 | Floating clamping driving device for four-axis machining center shaft type workpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104057115B (en) | 2016-09-21 |
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| C06 | Publication | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190528 Address after: 250031 No. 129 Jilu Road, Jinan City, Shandong Province Patentee after: Shandong Machinery Design Inst. Address before: 250031 No. 129 Jilu Road, Tianqiao District, Jinan City, Shandong Province Patentee before: Dang Jinxing |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221219 Address after: Room 3115, No. 135, Ward Avenue, Ping'an Street, Changqing District, Jinan, Shandong 250000 Patentee after: Shandong Jiqing Technology Service Co.,Ltd. Address before: 250031 No. 129 Jilu Road, Jinan City, Shandong Province Patentee before: Shandong Machinery Design Inst. |
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| TR01 | Transfer of patent right |