CN201253682Y - Clamping head of blanking machine - Google Patents
Clamping head of blanking machine Download PDFInfo
- Publication number
- CN201253682Y CN201253682Y CNU2008201645371U CN200820164537U CN201253682Y CN 201253682 Y CN201253682 Y CN 201253682Y CN U2008201645371 U CNU2008201645371 U CN U2008201645371U CN 200820164537 U CN200820164537 U CN 200820164537U CN 201253682 Y CN201253682 Y CN 201253682Y
- Authority
- CN
- China
- Prior art keywords
- movable
- blanking machine
- clamping head
- collet
- rolling
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a blanking machine chuck which comprises a spring chuck, a movable assembly and a clamping sleeve, wherein the outer side at the left end of the spring chuck is provided with a taper which is provided with an external locking sleeve; the external locking sleeve is arranged on a main shaft; the inner side of the spring chuck is provided with a clamping sleeve seat; one end of the clamping sleeve seat extends out of the spring chuck; the clamping sleeve seat is provided with a plurality of rolling grooves; an elastic assembly and the movable assembly are movably arranged in the rolling grooves; the inner side of the movable assembly is provided with the clamping sleeve. Due to the arrangement of the movable assembly, axial shifting generated by the friction force of the chuck can be converted into the rolling force of the rolling assembly, that is, the clamping sleeve only receives clamping force transferred by the rolling assembly so as to clamp workpieces. Besides, the utility model can not generate axial shifting. Thereby, the size consistency of the cutting workpieces is guaranteed.
Description
Technical field
The utility model relates to a kind of blanking machine, relates in particular to a kind of clamping head of blanking machine.
Background technology
At present, the collet in order to location, clamping work pieces that generally uses on the lathe is to use the external screw thread of pull bar to be connected tension with the rear end internal thread of collet, produces axial tension.Chuck is converted to the clamping force at vertical and chuck center with axial tension, thereby workpiece is clamped by the compression of the conical surface of machine tool chief axis front end.But adopt this structure, workpiece can make spring add with frictional force between collet and produce relative rotation or axial float between head and the workpiece, influence the machining accuracy of workpiece.
The utility model content
The utility model provides a kind of novel structure, can effectively avoid part along with the clamping head of blanking machine of clamping head toward retraction at deficiency of the prior art.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of clamping head of blanking machine, comprise collet, movable-component, gripping sleeve, the arranged outside of the left end of described collet has tapering, tapering is provided with the outer locking cover, the outer locking cover is installed on the main shaft, described collet inboard is provided with the clamping block set, one end of described clamping block set stretches out collet, clamp block set and be provided with many rolling grooves, being arranged in the rolling groove of elastic parts and movable-component activity, the inboard of described movable-component is provided with gripping sleeve, by movable-component is set, can will produce the rolling power that axial float is converted into rolling assembly by chuck frictional force, that is to say, gripping sleeve only is subjected to the thrust that rolling assembly transmits, and workpiece is clamped, and can not produce axial float.Thereby guarantee the dimensional uniformity of cut workpiece.
In the technique scheme, described movable-component is a ball, is convenient to movable-component moving in the gripping sleeve outside.
In the technique scheme, described ball is provided with more than 2 pairs or 2 pairs.
In the technique scheme, described gripping sleeve is provided with the opposite elongated slot of direction.
In the technique scheme, described elongated slot is provided with more than 2 groups or 2 groups.
Beneficial effect: the utility model compared with prior art has following beneficial effect:
1) the utility model novel structure, by movable-component is set, the harmful friction that produces on the chuck can be absorbed the rolling power that is converted into rolling assembly, that is to say, the gripping sleeve that is arranged in the movable-component only is subjected to the thrust that rolling assembly transmits, workpiece is clamped, and can not produce axial float.Thereby guarantee the dimensional uniformity of cut workpiece.
Description of drawings
Fig. 1 is the clamping head of blanking machine front view
Fig. 2 is the schematic diagram of clamping head of blanking machine when the gripping part
Fig. 3 is the front view of gripping sleeve
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
See Fig. 1～Fig. 3, described clamping head of blanking machine mainly is made of collet 1, movable-component 5, gripping sleeve 4 etc.
The arranged outside of the left end of described collet 1 has tapering, and tapering is provided with outer locking cover 7, and outer locking cover 7 is installed on the main shaft 8, and described collet 1 inboard is provided with and clamps block set 2, and an end of described clamping block set 2 stretches out collet 1.
Described clamping block set 2 is provided with many rolling grooves, being arranged in the rolling groove of described elastic parts and movable-component 5 activities, and the inboard of described movable-component 5 is provided with gripping sleeve 4.
Preferably, describedly step up to overlap 4 and be provided with the opposite elongated slot of direction.
Described movable-component 5 can be objects such as cylinder, and in other words, described movable-component 5 can move in gripping sleeve 4 outsides and get final product, and not as limit, the utility model is set to ball, is convenient to movable-component 5 moving in gripping sleeve 4 outsides.
As preferably, described elastic parts is a spring, can simplify technology, the convenient installation.
Its operation principle of clamping head of blanking machine is, collet 1 is connected outward with pull bar by internal thread, pull bar moves backward and produces an axial pulling force, collet 1 is owing to be subjected to the locking of the tapering of outer locking cover 7, collet 1 inwardly shrinks, produced a power perpendicular to collet 1 center, ball is subjected to this vertical power, to clamp at the gripping sleeve 4 of inboard, simultaneously, the frictional force that ball produces when again collet 1 being shunk absorbs, and ball rolls thereupon backward, thereby has effectively avoided the axial float between the chuck in clamping work pieces.Guaranteed the uniformity of processing work size.
When collet 1 loosened, the power that is applied on the ball disappeared, and the elastic parts that ball is set at the rolling groove end pushes back initial position, prepares clamping next time.
Though the utility model is described by preferred embodiment, yet the utility model is not limited to embodiment as described herein, also comprises various changes and the variation done under the situation that does not break away from the utility model scope.
Claims (5)
1, a kind of clamping head of blanking machine, comprise collet (1), movable-component (5), gripping sleeve (4), the arranged outside of the left end of described collet (1) has tapering, tapering is provided with outer locking cover (7), outer locking cover (7) is installed on the main shaft (8), described collet (1) inboard is provided with and clamps block set (2), one end of described clamping block set (2) stretches out collet (1), clamp block set (2) and be provided with many rolling grooves, what elastic parts and movable-component (5) were movable is arranged in the rolling groove, and the inboard of described movable-component (5) is provided with gripping sleeve (4).
2, clamping head of blanking machine as claimed in claim 1 is characterized in that, described movable-component (5) is a ball.
3, clamping head of blanking machine as claimed in claim 2 is characterized in that, described ball is provided with more than 2 pairs or 2 pairs.
4, clamping head of blanking machine as claimed in claim 1 is characterized in that, described gripping sleeve (4) is provided with the opposite elongated slot of direction.
5, clamping head of blanking machine as claimed in claim 4 is characterized in that, described elongated slot is provided with more than 2 groups or 2 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201645371U CN201253682Y (en) | 2008-09-09 | 2008-09-09 | Clamping head of blanking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201645371U CN201253682Y (en) | 2008-09-09 | 2008-09-09 | Clamping head of blanking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201253682Y true CN201253682Y (en) | 2009-06-10 |
Family
ID=40736997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201645371U Expired - Lifetime CN201253682Y (en) | 2008-09-09 | 2008-09-09 | Clamping head of blanking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201253682Y (en) |
-
2008
- 2008-09-09 CN CNU2008201645371U patent/CN201253682Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090610 Effective date of abandoning: 20080909 |