CN203541598U - Cylindrical bar stock-clamping jaw for three-jaw chucks of lathes - Google Patents
Cylindrical bar stock-clamping jaw for three-jaw chucks of lathes Download PDFInfo
- Publication number
- CN203541598U CN203541598U CN201320639802.8U CN201320639802U CN203541598U CN 203541598 U CN203541598 U CN 203541598U CN 201320639802 U CN201320639802 U CN 201320639802U CN 203541598 U CN203541598 U CN 203541598U
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- China
- Prior art keywords
- claw
- jaw
- clamping
- handed
- tooth pitch
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Abstract
The utility model relates to a cylindrical bar stock-clamping jaw for three-jaw chucks of lathes. The cylindrical bar stock-clamping jaw is characterized in that: one side of the upper end of a jaw body is an inner jaw opening, the other side of the upper end of a jaw body is an outer jaw opening, the end surface of the upper end of the jaw body is a clamping surface, the clamping surface of the jaw body is provided with sawtoothed grooves, which are left-handed inclined sawteeth, the straight surfaces of the left-handed inclined sawteeth face the outer jaw opening, the chamfers of the left-handed inclined sawteeth face the inner jaw opening, the pitches of the left-handed inclined sawteeth are gradually increased to pitch A by 0.5mm in a direction toward the outer jaw opening from the pitch B of the left-handed inclined sawteeth close to the inner jaw opening, and the pitch A is equal to the distance of four pitches B. The flared opening of the jaw can effectively prevent the axial motion and rotation of a cylindrical bar stock in the process of turning.
Description
Technical field
The utility model relates to a kind of clamping claw for lathe three-claw chuck blank round bar, belongs to a kind of clamping claw being applied on lathe.
Background technology
Claw on the scroll chuck using on lathe, the groove on clamping area is equidistant V-type groove, and in use for some time, clamping area there will be inner small and outside big horn mouth, and in claw, the clamping area of interruption-forming is less than the clamping area of the outer interruption-forming of claw.During clamp cylinders bar, can only clamp by claw internal orifice clamping area, between collar extension clamping area and bar, occur gap.Because clamping area reduces, cause insufficient clamping force, during cutting, due to the effect of axial force and cutting force, workpiece there will be the phenomenon of axial float and rotation.
Utility model content
The purpose of this utility model is to provide a kind of clamping claw for lathe three-claw chuck blank round bar, and it can effectively stop blank round bar axial float and rotation in turning process by the horn mouth on claw.
The technical solution of the utility model is achieved in that a kind of clamping claw for lathe three-claw chuck blank round bar, it is characterized in that: claw main body upper end one side is claw internal orifice, opposite side is claw collar extension, claw main body upper end end face is clamping area, on the clamping area of claw main body, have dentate groove, dentate groove is left-handed oblique sawtooth, facing directly towards claw collar extension direction of left-handed oblique sawtooth, the inclined-plane of left-handed oblique sawtooth is towards claw internal orifice direction, the increase displacement increasing progressively with the distance of 0.5mm towards claw collar extension direction near the tooth pitch B of the left-handed oblique sawtooth of claw internal orifice one side is tooth pitch A, tooth pitch A equals the distance of 4 tooth pitch B.
When good effect of the present utility model is its clamping, clamping force can act on claw internal orifice clamping area effectively, clamping area can embed cylinder bar epidermis the inside, extend and occur the bell-mouthed time, while there is horn mouth, can effectively control pole blank material axial float and rotation.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Fig. 2 is side view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as Fig. 1, shown in 2, a kind of clamping claw for lathe three-claw chuck blank round bar, it is characterized in that: claw main body 1 upper end one side is claw internal orifice 3, opposite side is claw collar extension 4, claw main body 1 upper end end face is clamping area 5, on the clamping area 5 of claw main body 1, have dentate groove, dentate groove is left-handed oblique sawtooth 2, facing directly towards claw collar extension 4 directions of left-handed oblique sawtooth 2, the inclined-plane of left-handed oblique sawtooth 2 is towards claw internal orifice 3 directions, the increase displacement increasing progressively with the distance of 0.5mm towards claw collar extension 4 directions near the tooth pitch B of the left-handed oblique sawtooth 2 of claw internal orifice 3 one sides is tooth pitch A, tooth pitch A equals the distance of 4 tooth pitch B.
During work, due to the clamping area 5 of claw main body 1, from claw collar extension 4 to claw internal orifice 3, the tooth pitch that reduces gradually claw groove forms displacement 1 (A=4B), and also having intilted angle to form left-handed oblique sawtooth 2, clamping area reduces gradually, the wearing and tearing of claw internal orifice 3 clamping areas during 1 work of claw main body, be greater than the wearing and tearing of collar extension 4 clamping areas, so extended, occur the bell-mouthed time.As while there is horn mouth, because claw main body 1 is that left-handed oblique sawtooth 2 reduces clamping area 5 gradually, during clamping, clamping force can act on the clamping area 5 at claw internal orifice 3 places effectively, and can embed cylinder bar epidermis the inside, eliminate the angle that horn mouth forms, make the clamping area 5 at claw collar extension 4 places also can clamp bar, between claw main body 1 and bar, there will not be gap, reach clamping work pieces clamping force used, the phenomenon that can effectively stop round bar axial float and rotate with axle center.
Claims (1)
1. the clamping claw for lathe three-claw chuck blank round bar, it is characterized in that: claw main body upper end one side is claw internal orifice, opposite side is claw collar extension, claw main body upper end end face is clamping area, on the clamping area of claw main body, have dentate groove, dentate groove is left-handed oblique sawtooth, facing directly towards claw collar extension direction of left-handed oblique sawtooth, the inclined-plane of left-handed oblique sawtooth is towards claw internal orifice direction, the increase displacement increasing progressively with the distance of 0.5mm towards claw collar extension direction near the tooth pitch B of the left-handed oblique sawtooth of claw internal orifice one side is tooth pitch A, tooth pitch A equals the distance of 4 tooth pitch B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639802.8U CN203541598U (en) | 2013-10-17 | 2013-10-17 | Cylindrical bar stock-clamping jaw for three-jaw chucks of lathes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639802.8U CN203541598U (en) | 2013-10-17 | 2013-10-17 | Cylindrical bar stock-clamping jaw for three-jaw chucks of lathes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541598U true CN203541598U (en) | 2014-04-16 |
Family
ID=50459767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320639802.8U Expired - Fee Related CN203541598U (en) | 2013-10-17 | 2013-10-17 | Cylindrical bar stock-clamping jaw for three-jaw chucks of lathes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203541598U (en) |
-
2013
- 2013-10-17 CN CN201320639802.8U patent/CN203541598U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20191017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |