CN104772494B - A kind of collet - Google Patents
A kind of collet Download PDFInfo
- Publication number
- CN104772494B CN104772494B CN201510198462.3A CN201510198462A CN104772494B CN 104772494 B CN104772494 B CN 104772494B CN 201510198462 A CN201510198462 A CN 201510198462A CN 104772494 B CN104772494 B CN 104772494B
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- China
- Prior art keywords
- hole
- pin
- cylinder
- tube
- cavity
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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
- 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
- B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
- B23B31/201—Characterized by features relating primarily to remote control of the gripping means
- B23B31/207—Characterized by features relating primarily to remote control of the gripping means using mechanical transmission through the spindle
Abstract
The present invention relates to a kind of collet, including cylinder, cavity provided with an axial direction in cylinder, cavity is provided with locating shaft, the outer wall of cylinder offers at least two grooves position, each groove position is respectively equipped with locating ring, locating ring is made up of at least two positioning circular arcs, the two ends for positioning circular arc are spirally connected by set screw and the bottom of groove position respectively, the inner side of circular arc is positioned integrally formed with projection, the position of groove position correspondence projection offers through hole, through hole is connected with cavity, projection inserts through hole, the position of locating shaft correspondence projection is provided with positioning round table, set screw includes integrally formed nut and screw rod, screw rod includes integrally formed threaded portion and smooth department, smooth department is close to nut, threaded portion is away from nut；The collet is simple in construction, and when clamping tube-shaped tube, each locating ring is opened simultaneously, and tube-shaped tube is clamped, uniform force, so that the sidewall thickness of the tube-shaped tube processed is in the same size, is reduced the defect rate of product, is improved the quality of product.
Description
Technical field
The present invention relates to light conduction engineering device technique field, more particularly to a kind of collet.
Background technology
Collet is that one kind is clamped tube-shaped tube, in order to the fixture being processed.Existing collet knot
Structure is unreasonable, and one end diameter is big, and one end diameter is small, discontinuity, meanwhile, when chuck is driven by motor and rotated, meeting
Larger centrifugal force is produced so that tube-shaped tube discontinuity, so that the sidewall thickness size of the tube-shaped tube processed
Differ, change in size is very big, seriously improve the defect rate of product, reduce the quality of product, improve production cost.
In addition, existing collet also has that chucking power is not easily controlled, chucking power is excessive, then is easy to cylinder
Shape tube stay splits, and chucking power is too small, then tube-shaped tube is easily releasable so that tube-shaped tube drops from chuck, reduce crudy and
Processing efficiency.
The content of the invention
The present invention to overcome drawbacks described above to provide a kind of collet, the collet is simple in construction, two ends it is straight
Footpath is in the same size, and when clamping tube-shaped tube, each locating ring opens simultaneously, so as to be clamped to tube-shaped tube, in chuck quilt
When motor drives rotation, tube-shaped tube will not be affected by centrifugal force, uniform force, so that the tubular processed
The sidewall thickness of pipe is in the same size, and size there is not change, reduces the defect rate of product, improves the quality of product, reduces life
Cost is produced, economic benefit is improved；The chucking power of the collet is easily controllable, improves crudy and processing efficiency.
To achieve the above object, the present invention is adopted the following technical scheme that.
A kind of cavity provided with an axial direction in collet, including cylinder, the cylinder, the cavity is provided with locating shaft,
The outer wall of the cylinder offers at least two grooves position, and each groove position is respectively equipped with locating ring, and the locating ring is by least two
Circular arc composition is positioned, the two ends for positioning circular arc are spirally connected by the bottom of set screw and groove position respectively, described to position the interior of circular arc
Side offers through hole integrally formed with projection, the position of the groove position correspondence projection, and the through hole is connected with the cavity,
The projection inserts the through hole, and the position of the locating shaft correspondence projection is provided with positioning round table, the set screw bag
Integrally formed nut and screw rod are included, the screw rod includes integrally formed threaded portion and smooth department, and the smooth department is close to institute
Nut is stated, the threaded portion is away from the nut.
Wherein, two neighboring positioning circular arc is spirally connected using same set screw and the bottom of groove position.
Wherein, the length of the smooth department is 3~5 millimeters.
Wherein, the smooth department is arranged with soft buffering ring, and the thickness of the soft buffering ring is 1~1.5 millimeter.
Wherein, the sidewall symmetry of the cylinder is provided with the first pin-and-hole and the second pin-and-hole, the locating shaft correspondence described first
The position of pin-and-hole offers the 3rd pin-and-hole, and the cylinder is provided with pin, the pin be each passed through the first pin-and-hole, the second pin-and-hole and
3rd pin-and-hole.
Wherein, the length of first pin-and-hole and second pin-and-hole is 1.5~3 times of diameter of the pin, described
The diameter of 3rd pin-and-hole is equal to the diameter of the pin.
Wherein, the locating shaft includes outer shaft and interior axle, and the outer shaft is provided with an axial passage, the axial passage and institute
The two ends connection of outer shaft is stated, the interior axle inserts the axial passage, and the positioning round table is located at the outer shaft, and the interior axle is set
There is the 4th pin-and-hole, the pin passes through the 4th pin-and-hole, the length and the length phase of first pin-and-hole of the 4th pin-and-hole
The inner Deng, the interior axle is provided with connecting portion.
Wherein, the outer end of the interior axle be provided with groove, the groove be provided with elastic parts, the outer end of the elastic parts with
The axial passage is spirally connected.
Wherein, the elastic parts includes fixed seat, spring, the first fixture and the second fixture, and the fixed seat is set
Have a fixed cavity, second fixture passes through the fixed cavity, first fixture include integrally formed cap body and
Cylinder, the spring inserts the cylinder, and one end of the spring is abutted with the cap body, the other end of the spring with it is described
Fixed seat is abutted, and second fixture is spirally connected with first fixture, and the outer peripheral edge of the fixed seat is provided with screw thread, described
Fixed seat is spirally connected by the screw thread with the axial passage, and the cap body is abutted with the pin.
Wherein, the inner of the cylinder is provided with retainer ring, and the retainer ring is fixedly connected with the cylinder, the retainer ring
It is provided with some fixing holes, some fixing hole equidistant intervals arrangements.
Beneficial effects of the present invention are：In a kind of collet of the present invention, including cylinder, the cylinder provided with one axially
Cavity, the cavity is provided with locating shaft, and the outer wall of the cylinder offers at least two grooves position, and it is fixed that each groove position is respectively equipped with
Position ring, the locating ring is made up of at least two positioning circular arcs, positions the two ends of circular arc respectively by set screw and groove position
Bottom is spirally connected, and the inner side of the positioning circular arc is integrally formed with projection, and the position that the groove position corresponds to the projection offers logical
Hole, the through hole is connected with the cavity, and the projection inserts the through hole, and the position of the locating shaft correspondence projection is set
There is positioning round table, the set screw includes integrally formed nut and screw rod, and the screw rod includes integrally formed threaded portion
And smooth department, the smooth department is close to the nut, and the threaded portion is away from the nut；The collet is simple in construction, and two
The diameter at end is consistent, and when clamping tube-shaped tube, each locating ring opens simultaneously, so that tube-shaped tube is clamped,
When chuck drives rotation by motor, tube-shaped tube will not be affected by centrifugal force, uniform force, so that processing
Tube-shaped tube sidewall thickness it is in the same size, size there is not change, reduces the defect rate of product, improves the quality of product, drop
Low production cost, improves economic benefit；The chucking power of the collet is easily controllable, improves crudy and processing is imitated
Rate.
Brief description of the drawings
With accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not constitute any limitation of the invention.
Fig. 1 is a kind of structural representation of collet of the present invention.
Fig. 2 is a kind of sectional view of collet of the present invention.
Fig. 3 is a kind of decomposition texture schematic diagram of collet of the present invention.
Fig. 4 is the structural representation of cylinder.
Fig. 5 is the assembled state sectional view of cylinder and locating shaft.
Fig. 6 is the structural representation of locating shaft.
Fig. 7 is the sectional view of locating shaft.
Fig. 8 is the sectional view of elastic parts.
Fig. 9 is the decomposition texture schematic diagram of elastic parts.
Figure 10 is the assembled state sectional view of set screw and soft buffering ring.
Figure 11 is the structural representation of interior axle.
Figure 12 is the sectional view of interior axle.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, and this is presently preferred embodiments of the present invention.
Embodiment.
As shown in Figures 1 to 12, in a kind of collet of the invention, including cylinder 1, the cylinder 1 provided with one axially
Cavity, the cavity is provided with locating shaft 2, and the outer wall of the cylinder 1 offers at least two grooves position 12, and each groove position 12 is distinguished
Provided with locating ring 3, the locating ring 3 is made up of at least two positioning circular arcs 32, positions the two ends of circular arc 32 respectively by positioning
Screw 31 and the bottom of groove position 12 are spirally connected, and the inner side of the positioning circular arc 32 is integrally formed with projection 321,12 correspondences of the groove position
The position of the projection 321 offers through hole 121, and the through hole 121 is connected with the cavity, and the projection 321 is inserted described
Through hole 121, the position of the correspondence of locating shaft 2 projection 321 is provided with positioning round table 212, and the set screw 31 includes one
Body formed nut 314 and screw rod, the screw rod include integrally formed threaded portion 311 and smooth department 312, the smooth department
312 close to the nut 314, and the threaded portion 311 is away from the nut 314.
As a preferred technical scheme, the groove position 12 of the present embodiment is three, and locating ring 3 is by three positioning circular arcs 32
Composition.
The collet is simple in construction, and the diameter at two ends is consistent, and when clamping tube-shaped tube, each locating ring 3 is same
Shi Zhangkai, so as to be clamped to tube-shaped tube, when chuck is driven by motor and rotated, tube-shaped tube will not be by centrifugal force
Influence, uniform force, so that the sidewall thickness of the tube-shaped tube processed is in the same size, size there is not change, reduces production
The defect rate of product, improves the quality of product, reduces production cost, improve economic benefit；The chucking power of the collet
It is easily controllable, improve crudy and processing efficiency.
The two neighboring positioning circular arc 32 of the present embodiment is spirally connected using same set screw 31 and the bottom of groove position 12；Should
Setting structure is simple, it is easy to be molded, and can be fixed to set screw 31 on groove position 12, so that set screw 31 can be given
Locating ring 3 provides the track slided, and then the operation for being clamped or being unclamped to tube-shaped tube using locating ring 3.
The length of the smooth department 312 of the present embodiment is 3~5 millimeters；As a preferred technical scheme, the present embodiment
The length of smooth department 312 is 4 millimeters；The setting structure is simple, it is easy to be molded, and the track that can be slided can be provided to locating ring 3,
Reliability is high.
The smooth department 312 of the present embodiment is arranged with soft buffering ring 313, the thickness of the soft buffering ring 313 for 1~
1.5 millimeter；The setting structure is simple, it is easy to be molded, and can enter row buffering to locating ring 3 and nut 314, prevent locating ring 3 from passing through
Perseverance rubs to nut 314, nut 314 is damaged, it is also possible to which the chucking power to locating ring 3 enters row buffering, anti-fastening
The chucking power of position ring 3 is excessive, bursts tube-shaped tube, so as to maintain the quality of product, reduces defect rate, reduce and be produced into
This.
The sidewall symmetry of the cylinder 1 of the present embodiment is provided with the first pin-and-hole 11 and the second pin-and-hole, and the correspondence of locating shaft 2 is described
The position of first pin-and-hole 11 offers the 3rd pin-and-hole 211, and the cylinder 1 is provided with pin 6, and the pin 6 is each passed through the first pin
Hole 11, the second pin-and-hole and the 3rd pin-and-hole 211；The diameter of 3rd pin-and-hole 211 is equal to the diameter of the pin 6；First pin-and-hole
11 and the length of second pin-and-hole be 1.5~3 times of diameter of the pin 6；It is used as a preferred technical scheme, this reality
The length of the first pin-and-hole 11 and second pin-and-hole of applying example is 2 times of the diameter of the pin 6；The setting structure is simple, easily
In shaping, pin 6 can drive locating shaft 2 is overall to advance or retreat, while pin 6 can be in the first pin-and-hole 11 and the second pin-and-hole
Finite length in advance or retreat so that locating shaft 2 can to locating ring 3 apply holding power so that locating ring 3 can
Chucking power is applied to tube-shaped tube, tube-shaped tube is clamped.
The locating shaft 2 of the present embodiment includes outer shaft 21 and interior axle 22, and the outer shaft 21 is provided with an axial passage, the axial direction
Passage is connected with the two ends of the outer shaft 21, and the interior axle 22 inserts the axial passage, and the positioning round table 212 is located at described
Outer shaft 21, the interior axle 22 is provided with the 4th pin-and-hole 222, and the pin 6 passes through the 4th pin-and-hole 222, the 4th pin-and-hole 222
Length and first pin-and-hole 11 equal length, the inner of the interior axle 22 is provided with connecting portion 223, molding assembly when
Wait, the connecting portion 223 is connected with the output end of oil cylinder；The setting structure is simple, it is easy to be molded, and is conducive to control locating shaft 2 to apply
The holding power of locating ring 3 is added to, so as to control chucking power of the locating ring 3 to tube-shaped tube, prevents from bursting tube-shaped tube, reduces substandard products
Rate.
The outer end of the interior axle 22 of the present embodiment is provided with groove 221, and the groove 221 is provided with elastic parts 5, described elastic group
The outer end of part 5 is spirally connected with the axial passage；It is solid that elastic parts 5 includes fixed seat 53, spring 52, the first fixture 51 and second
Determine part 54, the fixed seat 53 is provided with fixed cavity, and second fixture 54 passes through the fixed cavity, and described first fixes
Part 51 includes integrally formed cap body 511 and cylinder 512, and the spring 52 inserts the cylinder 512, one end of the spring 52
Abutted with the cap body 511, the other end of the spring 52 is abutted with the fixed seat 53, second fixture 54 with it is described
First fixture 51 is spirally connected, and the outer peripheral edge of the fixed seat 53 is provided with screw thread, the fixed seat 53 by the screw thread with it is described
Axial passage is spirally connected, and the cap body 511 is abutted with the pin 6；The setting structure is simple, it is easy to be molded so that the elastic clip
The chucking power of head is easily controllable, will not burst tube-shaped tube, and reliability is high.
The inner of the cylinder 1 of the present embodiment is provided with retainer ring 4, and the retainer ring 4 is fixedly connected with the cylinder 1, described
Retainer ring 4 is provided with some fixing holes 41, some equidistant intervals of fixing hole 41 arrangements；As a preferred technical scheme,
The retainer ring 4 of the present embodiment is provided with four fixing holes 41；The setting structure is simple, it is easy to be molded, and is easy to by the retainer ring 4
Cylinder 1 is fixed in frame, is conducive to the assembling of collet to use, practicality is high.
The present invention principle be：The connecting portion 223 of hydraulic oil cylinder driving interior axle 22 is moved forward so that interior axle 22 is moved forward,
Interior axle 22 drives pin 6 to move forward, and pin 6 drives outer shaft 21 to move forward, and the positioning round table 212 on outer shaft 21 is to setting circle
Projection 321 on arc 32 applies holding power so that positioning circular arc 32 opens, so as to be clamped to tube-shaped tube；Wherein, due to
The limited length of one pin-and-hole 11 and the second pin-and-hole, limits the shift length of pin 6, also limit the shift length of locating shaft 2,
Pin 6 is moved forward after a small distance, cannot continue reach, now, spring 52 is pressed onto on pin 6, is pressed by pin 6
Contracting, generates an elastic force (cushion effect) backward so that locating shaft 2 produces a thrust backward, so as to avoid oil
The power that cylinder applies is excessive, has burst tube-shaped tube so that the uniform force of tube-shaped tube, and clamping is stable, and chucking power both will not be excessive,
Will not be too small；And then the machining accuracy and crudy of product are improved, defect rate is reduced, economic benefit is improved.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than to present invention guarantor
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (8)
1. a kind of collet, it is characterised in that：Including cylinder, set in the cylinder provided with an axial cavity, the cavity
Have a locating shaft, the outer wall of the cylinder offers at least two grooves position, each groove position is respectively equipped with locating ring, the locating ring by
At least two positioning circular arc compositions, the two ends for positioning circular arc are spirally connected by set screw and the bottom of groove position respectively, the positioning
The inner side of circular arc is integrally formed with projection, and the position of the groove position correspondence projection offers through hole, the through hole with it is described
Cavity is connected, and the projection inserts the through hole, and the position of the locating shaft correspondence projection is provided with positioning round table, described fixed
Position screw includes integrally formed nut and screw rod, and the screw rod includes integrally formed threaded portion and smooth department, described smooth
Portion is close to the nut, and the threaded portion is away from the nut, and the sidewall symmetry of the cylinder is provided with the first pin-and-hole and the second pin
Hole, the position of the locating shaft correspondence first pin-and-hole offers the 3rd pin-and-hole, and the cylinder is provided with pin, the pin point
Chuan Guo not the first pin-and-hole, the second pin-and-hole and the 3rd pin-and-hole；Two neighboring positioning circular arc uses same set screw and groove position
Bottom is spirally connected.
2. a kind of collet according to claim 1, it is characterised in that：The length of the smooth department is 3~5 millimeters.
3. a kind of collet according to claim 1, it is characterised in that：The smooth department is arranged with soft buffering ring,
The thickness of the soft buffering ring is 1~1.5 millimeter.
4. a kind of collet according to claim 3, it is characterised in that：First pin-and-hole and second pin-and-hole
Length is 1.5~3 times of the diameter of the pin, and the diameter of the 3rd pin-and-hole is equal to the diameter of the pin.
5. a kind of collet according to claim 1, it is characterised in that：The locating shaft includes outer shaft and interior axle, institute
Outer shaft is stated provided with an axial passage, the axial passage is connected with the two ends of the outer shaft, the interior axle is inserted the axial direction and led to
Road, the positioning round table is located at the outer shaft, and the interior axle is provided with the 4th pin-and-hole, and the inner of the interior axle is provided with connecting portion.
6. a kind of collet according to claim 5, it is characterised in that：The outer end of the interior axle is provided with groove, described
Groove is provided with elastic parts, and the outer end of the elastic parts is spirally connected with the axial passage.
7. a kind of collet according to claim 6, it is characterised in that：The elastic parts include fixed seat, spring,
First fixture and the second fixture, the fixed seat are provided with fixed cavity, and second fixture passes through the fixed cavity,
First fixture includes integrally formed cap body and cylinder, and the spring inserts the cylinder, one end of the spring with
The cap body is abutted, and the other end of the spring is abutted with the fixed seat, second fixture and first fixture
It is spirally connected, the outer peripheral edge of the fixed seat is provided with screw thread, and the fixed seat is spirally connected by the screw thread with the axial passage.
8. a kind of collet according to claim 1, it is characterised in that：The inner of the cylinder is provided with retainer ring, institute
State retainer ring to be fixedly connected with the cylinder, the retainer ring is provided with some fixing holes, some fixing hole equidistant intervals rows
Cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198462.3A CN104772494B (en) | 2015-04-23 | 2015-04-23 | A kind of collet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198462.3A CN104772494B (en) | 2015-04-23 | 2015-04-23 | A kind of collet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104772494A CN104772494A (en) | 2015-07-15 |
| CN104772494B true CN104772494B (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510198462.3A Active CN104772494B (en) | 2015-04-23 | 2015-04-23 | A kind of collet |
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| Country | Link |
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| CN (1) | CN104772494B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839179B (en) * | 2017-11-16 | 2019-07-16 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw-rod structure of injection molding machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204584316U (en) * | 2015-04-23 | 2015-08-26 | 东莞市才立金属科技有限公司 | A kind of collet |
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2015
- 2015-04-23 CN CN201510198462.3A patent/CN104772494B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204584316U (en) * | 2015-04-23 | 2015-08-26 | 东莞市才立金属科技有限公司 | A kind of collet |
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| Publication number | Publication date |
|---|---|
| CN104772494A (en) | 2015-07-15 |
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Address after: 523000 Room 101, building 1, No. 1, Caili Road, Hengli Town, Dongguan City, Guangdong Province Patentee after: DONGGUAN CAILI METAL TECHNOLOGY Co.,Ltd. Address before: 523000 No. 68, Sanjiang Industrial Zone, Hengli Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN CAILI METAL TECHNOLOGY Co.,Ltd. |