CN104057115B - Pendulum claw chuck - Google Patents
Pendulum claw chuck Download PDFInfo
- Publication number
- CN104057115B CN104057115B CN201410284493.6A CN201410284493A CN104057115B CN 104057115 B CN104057115 B CN 104057115B CN 201410284493 A CN201410284493 A CN 201410284493A CN 104057115 B CN104057115 B CN 104057115B
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- CN
- China
- Prior art keywords
- chuck
- claw
- rocking arm
- voussoir
- connecting rod
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- 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
A kind of pendulum claw chuck, uses and swings claw mode clamping workpiece, and claw clamping range is easy to adjust, and when claw clamping workpiece, the centrifugal force that claw produces is less than the centrifugal force produced with rocking arm, and therefore, the chucking power of chuck can increase on the contrary at high speeds；It addition, this chuck also has the multiple functions such as claw is flexible, center installation is top.
Description
Technical field
The present invention relates to machine tool field, the especially chuck of machine tool, Digit Control Machine Tool.
Background technology
CardDish is machine tool, the primary clip of Digit Control Machine Tool clamping workpiece, and especially lathe according to statistics, has the part of more than 90% to use chuck clamping on lathe；Presently used chuck, mainly has two kinds of forms by power classification: hand chuck and automatic chuck, hand chuck is generally disposed on machine tool, and automatic chuck is arranged on Digit Control Machine Tool；Hand chuck and automatic chuck are the most entirely different, and hand chuck is manually rotary T-shaped shape spanner, then stir the spiral end fluted disc in chuck body, and spiral end fluted disc drives claw, make claw centripetal or centrifugal slip, thus clamping or unclamp workpiece；Automatic chuck generally using pneumatic, electronic or hydraulic pressure as power source, drives a wedge by executive component, wedge drives claw, makes claw centripetal or centrifugal slip, thus clamping or unclamp workpiece.Owing to the mechanism of the two is different, the clamping range of workpiece is also had difference, the clamping range of hand chuck typically from several millimeters to hundreds of millimeter, scope is the biggest；And automatic chuck only has several millimeters to tens millimeters, being up to tens millimeters, scope is the least；In order to solve this contradiction, general automatic chuck is equipped with greatly movable jaw, by changing the movable jaw scope with expansion clamping workpiece, but, this method is the most very good.
Along with developing rapidly of Numeric Control Technology, the speed of mainshaft of lathe is more and more higher, centrifugal force due to chuck jaws self, when the rotating speed of chuck raises, the chucking power of chuck will decline, and along with being continuously increased of chuck rotating speed, the chucking power of chuck will drastically decline, this phenomenon, for automatic chuck, is a fatal defect.
Summary of the invention
The problem that chucking power declines in order to overcome automatic chuck clamping workpiece scope be little, under fast state, the present invention provides a kind of pendulum claw chuck, this chuck uses and swings claw mode clamping workpiece, claw clamping range is easy to adjust, when claw clamping workpiece, the centrifugal force that claw produces is less than the centrifugal force produced with rocking arm, and therefore, the chucking power of chuck can increase on the contrary at high speeds；It addition, this chuck also has the multiple functions such as claw is flexible, center installation is top.
The present invention adopts the technical scheme that: chuck couples with lathe, and chuck seat is connected with chuck body by B screw, forms a chuck abdominal cavity, this chuck at least two claws between chuck seat and chuck body；The front portion of claw referred to as claw refers to, is suspended in before chuck body, the rear portion of claw referred to as jaw body, it is inlaid in the hole of chuck body, jaw body is cylindrical structural, jaw body rocking arm Intraabdominal with chuck is fixing to be connected; equipped with ejector pin outside rocking arm; ejector pin is built with B spring; the inner side of rocking arm is inclined-plane; the inclined-plane inside rocking arm matches with the inclined-plane of voussoir; 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 stud；When the powered connecting rod of chuck, connecting rod just promotion voussoir together advances, and under the effect on voussoir inclined-plane; rocking arm swings laterally, the jaw body of rocking arm drive claw rotates, and jaw body drives claw to point to interior side oscillation; and inwardly side oscillation while that multiple claw referring to, make workpiece be clamped；When the power of chuck pulls connecting rod, connecting rod pulls voussoir together to retreat, and rocking arm is inside side oscillation under the effect of ejector pin, and rocking arm drives the jaw body of claw to rotate, and jaw body drives the outwardly directed swing of claw, makes workpiece released.
The invention has the beneficial effects as follows, claw clamping range is easy to adjust, and the chucking power of chuck can increase on the contrary at high speeds, and this chuck can also use as telescopic claw chuck, simple in construction.
Accompanying drawing explanation
Fig. 1 is pendulum claw chuck appearance schematic diagram.
Fig. 2 is the left view schematic diagram of Fig. 1.
Fig. 3 is that the right side of Fig. 1 regards schematic diagram.
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 the right side of Fig. 6 regards schematic diagram.
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 the right side of Fig. 9 regards schematic diagram.
Figure 11 is the pendulum claw chuck the most retractable structural representation of its claw.
Figure 12 is another view of Figure 11.
Figure 13 is that pendulum claw chuck dress drives top structural representation.
Figure 14 is the driving top partial enlargement structural representation of Figure 13.
Figure 15 is that the right side of Figure 13 regards schematic diagram.
Figure 16 is another view of Figure 15.
In figure: 1. stud, 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. sets are top, 29. lathes.
Detailed description of the invention
In Fig. 1～Fig. 5, chuck couples with lathe (29), and chuck seat (5) is connected with chuck body (14) by B screw (17), forms a chuck abdominal cavity, this chuck at least two claws (11) between chuck seat (5) and chuck body (14)；The front portion referred to as claw of claw (11) refers to, it is suspended in before chuck body (14), the rear portion of claw (11) is referred to as jaw body, it is inlaid in the hole of chuck body (14), jaw body is cylindrical structural, jaw body rocking arm Intraabdominal with chuck (8) is fixing to be connected, rocking arm (8) outside is equipped with ejector pin (15), ejector pin (15) is built with B spring (16), the inner side of rocking arm (8) is inclined-plane, the inclined-plane of rocking arm (8) inner side matches with the inclined-plane of voussoir (18), 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 stud (1)；As shown in Figure 6 to 8, when powered connecting rod (2) of chuck, connecting rod (2) just promotes voussoir (18) together to advance, under the effect on voussoir (18) inclined-plane; rocking arm (8) swings laterally, the jaw body of rocking arm (8) drive claw (11) rotates, and jaw body drives claw to point to interior side oscillation; and inwardly side oscillation while that multiple claw referring to, make workpiece (13) be clamped；When the power of chuck pulls connecting rod (2), connecting rod (2) pulls voussoir (18) together to retreat; rocking arm (8) inside side oscillation under the effect of ejector pin (15); rocking arm (8) drives the jaw body of claw (11) to rotate; jaw body drives the outwardly directed swing of claw, makes workpiece (13) released.
In Fig. 6～embodiment illustrated in fig. 8, claw (11) is combined by end tooth with rocking arm (8), by centring sleeve (9) centering included, bolt (7) is connected through claw (11) with the threaded engagement of rocking arm (8), the end of bolt (7) is equipped with nut (6), prevent bolt (7) from coming off with nut (6), equipped with A spring (12) between claw (11) and rocking arm (8)；When bolt (7) is locked, claw (11) and rocking arm (8) are at being fastenedly connected state；When bolt (7) unclamps, under the effect of A spring (12), claw (11) disengages with the end tooth of rocking arm (8), it becomes possible to regulation claw (11) and the relative angle of rocking arm (8), i.e. regulates the claw (11) clamping range to workpiece (13).
In Fig. 9, embodiment illustrated in fig. 10, chuck hub position by gland (21) equipped with top (20), 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, connecting rod (2) middle part be provided with multiple aperture radially around, a steel ball (25) is placed in each aperture, the tail hole of chuck seat (5) is provided with toroidal cavity III, toroidal cavity III can coincide with steel ball (25), connecting rod (2) front end, C spring (23) it is placed with in the hole of voussoir (18), guide rod (24) is installed on connecting rod (2), voussoir (18) and the center of 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 fastenedly connected clamp (22), and the periphery of clamp (22) is inserted in the translot being embedded in rocking arm (8), and meanwhile, the jaw body at claw (11) rear portion lengthens, and chuck abdominal cavity expands, in order to claw (11) is the most overhanging；As shown in figure 12, when powered connecting rod (2) of chuck, connecting rod (2) just promotes voussoir (18) to advance, simultaneously, steel ball (25) promotes guide rod (24), and guide rod (24) just promotes clamp (22), rocking arm (8), claw (11) and association part to advance in the lump, after guide rod (24) reaches the limit of position, guide rod (24), clamp (22), rocking arm (8), claw (11) and association part motion stop, i.e. 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, guide rod (24) is no longer played a driving role by steel ball (25), but, connecting rod (2) continues to press on voussoir (18) and advances, under the effect on voussoir (18) inclined-plane; rocking arm (8) swings laterally; the jaw body of rocking arm (8) drive claw (11) rotates; jaw body drives claw to point to interior side oscillation; and inwardly side oscillation while that multiple claw referring to, make workpiece (13) be clamped；nullWhen the power of chuck pulls connecting rod (2)，Connecting rod (2) pulls voussoir (18) together to retreat，Rocking arm (8) inside side oscillation under the effect of ejector pin (15)，Rocking arm (8) drives the jaw body of claw (11) to rotate，Jaw body drives the outwardly directed swing of claw，Make workpiece (13) released，In this course，Effect due to C spring (23)，Guide rod (24) not motion，Until claw is outwardly directed when swinging 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 association part、Connecting rod (2)、Voussoir (18) together retreats，Extreme position is fallen back on the most wholly off until claw (11)；I.e. complete claw (11) overhanging-the whole cyclic process such as clamping-unclamp-retrogressing.
In Figure 13～embodiment illustrated in fig. 16, chuck hub position equipped with end-driver center, end-driver center by actuating sleeve (26), overlap top (28) and D spring (27) is constituted, 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 workpiece (13), claw (11) is the most also being to float, and this ensures that theres top positioning precision.
It can be seen in the drawing that be inlaid with cushion block (19) on claw (11), by changing the material of cushion block (19), shape, hardness etc., it is possible to be suitable to clamp different workpiece.
It can be seen in the drawing that equipped with guide pin bushing (10) between chuck body (14) and claw (11).
Claims (8)
- null1. pendulum claw chuck，Chuck seat (5) is connected with chuck body (14) by B screw (17)，A chuck abdominal cavity is formed between chuck seat (5) and chuck body (14),This chuck at least two claws (11)，It is characterized in that: the front portion referred to as claw of claw (11) refers to、It is suspended in before chuck body (14)，The rear portion of claw (11) is referred to as jaw body、It is inlaid in the hole of chuck body (14)，Jaw body is cylindrical structural，Jaw body rocking arm Intraabdominal with chuck (8) is fixing to be connected，Rocking arm (8) outside is equipped with ejector pin (15)，Ejector pin (15) is built with B spring (16)，The inner side of rocking arm (8) is inclined-plane，The inclined-plane of rocking arm (8) inner side matches with the inclined-plane of voussoir (18)，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 stud (1).
- 2. the pendulum claw chuck piece described in Ju claim 1, it is characterized in that: claw (11) is combined by end tooth with rocking arm (8), by centring sleeve (9) centering included, bolt (7) is connected through claw (11) with the threaded engagement of rocking arm (8), the end of bolt (7) is equipped with nut (6), prevent bolt (7) from coming off with nut (6), equipped with A spring (12) between claw (11) and rocking arm (8).
- 3. the pendulum claw chuck piece described in Ju claim 1 or 2, is characterized in that: in chuck hub position by gland (21) equipped with top (20).
- null4. the pendulum claw chuck piece described in Ju claim 1 or 2，Connecting rod (2)、The center of voussoir (18) is provided with through hole，Connecting rod (2) middle part be provided with multiple aperture radially around，A steel ball (25) is placed in each aperture，The tail hole of chuck seat (5) is provided with toroidal cavity III，Toroidal cavity III can coincide with steel ball (25)，Connecting rod (2) front end、C spring (23) it is placed with in the hole of voussoir (18)，Guide rod (24) is installed on connecting rod (2)、Voussoir (18) and the center of 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 fastenedly connected clamp (22)，The periphery of clamp (22) is inserted in the translot being embedded in rocking arm (8)，Simultaneously，The jaw body at claw (11) rear portion lengthens，Chuck abdominal cavity expands，So that claw (11) is the most overhanging.
- 5. the pendulum claw chuck piece described in Ju claim 4, is characterized in that: in chuck hub position equipped with end-driver center, end-driver center by actuating sleeve (26), overlap top (28) and D spring (27) is constituted, overlapping top (28) can axial float.
- 6. the pendulum claw chuck piece described in Ju claim 5, is characterized in that: connecting rod (2) is radially leaving gap with gland (3), voussoir (18).
- 7. the pendulum claw chuck piece described in Ju claim 1, is characterized in that: be inlaid with cushion block (19) on claw (11).
- 8. the pendulum claw chuck piece described in Ju claim 1, is characterized in that: equipped with guide pin bushing (10) between chuck body (14) and claw (11).
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 CN104057115A (en) | 2014-09-24 |
| CN104057115B true CN104057115B (en) | 2016-09-21 |
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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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414580B (en) * | 2015-12-02 | 2017-12-01 | 浙江德福精密驱动制造有限公司 | A kind of centre for lathe chuck |
| 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 |
| 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 |
| 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 |
Family Cites Families (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
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| Publication number | Publication date |
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| CN104057115A (en) | 2014-09-24 |
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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. |