CN202377802U - Self-centering clamp for drilling center holes - Google Patents
Self-centering clamp for drilling center holes Download PDFInfo
- Publication number
- CN202377802U CN202377802U CN2011205348018U CN201120534801U CN202377802U CN 202377802 U CN202377802 U CN 202377802U CN 2011205348018 U CN2011205348018 U CN 2011205348018U CN 201120534801 U CN201120534801 U CN 201120534801U CN 202377802 U CN202377802 U CN 202377802U
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- pincers piece
- screw rod
- threaded screw
- jaw
- positioning
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Abstract
The utility model belongs to the field of tools for shaft machining and in particular relates to a clamp for drilling center holes in the shaft machining process. The clamp comprises a fixed frame, a hand wheel and a positioning and guiding shaft, a threaded screw rod, a left tong block and a right tong block, which are arranged in the fixed frame, wherein the left and right tong blocks are used for clamping a workpiece; jaws are respectively arranged on the upper parts of the left and right tong blocks; the two jaws are respectively arranged on the inner sides of the left and right tong blocks and correspond to each other; the lower parts of the left and right tong blocks are arranged on the positioning and guiding shaft and can move left and right; the threaded screw rod is arranged between the jaws and the positioning and guiding shaft and penetrates through the middle parts of the left and right tong blocks; the left and right parts of the threaded screw rod have opposite thread directions; the left part is connected with the left tong block by the thread; the right part is connected with the right tong block by the thread; and the hand wheel is arranged outside the fixed frame and is fixedly connected with one end of the threaded screw rod. The clamp has the advantages of convenience and fastness in self-centering clamping, stability in locating, high centering precision and small offset.
Description
Technical field
The utility model belongs to axle type clamp for machining field, particularly relates to a kind of drill centers anchor clamps that are used for axle type process.
Background technology
In machine driving, axial workpiece is a lot, like the splined shaft in the gearbox, the main shaft in the lathe, the semiaxis in the automotive axle etc.And in the axial workpiece mechanical processing process, all with the two ends centre bore as the processes benchmark, so the drill centers operation directly influences the quality of back operation, also determine simultaneously the processing cost of product.At present, the drill centers operation is with scroll chuck clamping axial workpiece drill centers, because the scroll chuck centering precision is relatively poor on drilling machine; Get out the centre bore at two ends, often not on same axis, and the cylindrical side-play amount is big; Cylindrical is beated greatly, the processing of influence back operation.
Summary of the invention
The goal of the invention of the utility model is in order to solve many deficiencies that above-mentioned drill centers operation exists, a kind of novel structure to be provided, good positioning effect, centering precision height, the self-centering drill centers anchor clamps that side-play amount is little.
In order to realize above-mentioned goal of the invention, the technical scheme below the utility model has adopted:
A kind of self-centering drill centers anchor clamps comprise fixed mount, handwheel and are located at positioning and guiding axle, the threaded screw rod in the fixed mount, the left side pincers piece that is used for holding workpiece and right pincers piece; Pincers piece in a left side is respectively equipped with jaw with the top of right pincers piece, and it is inboard and corresponding that two jaw branches are in left and right pincers piece, the bottom of left side pincers piece and right pincers piece be located on the positioning and guiding axle and can about movable; Threaded screw rod is between jaw and the positioning and guiding axle and runs through the middle part of left and right pincers piece, and two hand of spirals are opposite about threaded screw rod, and its left part is threaded with left side pincers piece, and right part is threaded with right pincers piece; Handwheel is in the fixed mount outside and fixedlys connected with a wherein end of threaded screw rod.
As preferably, left side pincers piece is parallel to each other with right pincers piece, and threaded screw rod vertically runs through the middle part of left side pincers piece and right pincers piece, and positioning and guiding axle and threaded screw rod parallel.
As preferably, said left side pincers piece and jaw place on the right pincers piece are provided with the folder with the jaw form fit respectively.
As preferably; Said jaw is the inside V-type jaw of opening; The bottom angle of V-type jaw is 90 °; With the folder of jaw form fit be that the bottom angle is 90 ° V-type folder, two bottom angles are 90 ° the corresponding direction clamping zone that forms of V-type jaw, are convenient to more accurately feel relieved with circular shaft-like workpiece.
A kind of self-centering drill centers anchor clamps of technique scheme have been adopted; The bottom of left side pincers piece and right pincers piece is through positioning and guiding axle location; Make left side pincers piece and right pincers piece can only along the positioning and guiding axle axially about movable; Again through about two opposite threaded screw rods of hand of spiral run through the middle part of left and right pincers piece, the threaded screw rod left part is threaded with left side pincers piece, right part is threaded with the right piece that clamps.When the rotation of handwheel control threaded screw rod; The syndeton of this novelty can keep left and right pincers piece steadily symmetrically in opposite directions near clamping or opposing away from unclamping; Therefore, shaft-like workpiece is in a left side and clamps in two folder mouths in top of piece and right pincers piece, and self-centering clamping is convenient and swift; Positioning stablity, centering precision height, side-play amount is little.
Description of drawings
Fig. 1: the structural representation of the utility model embodiment.
The specific embodiment
Be to combine the technical scheme of 1 pair of the utility model of accompanying drawing to do further to set forth in detail below.
A kind of self-centering drill centers anchor clamps as shown in Figure 1 comprise fixed mount 1, handwheel 6 and are located at positioning and guiding axle 2, the threaded screw rod 5 in the fixed mount 1, the left side pincers piece 3 that is used for the clamping workpiece and right pincers piece 4.Fixed mount 1 is the direction framework, and positioning and guiding axle 2 is parallel to each other with threaded screw rod 5 and is located in the fixed mount 1.Left side pincers piece is parallel to each other with right pincers piece but is perpendicular with positioning and guiding axle 2 and threaded screw rod 5.The top of left side pincers piece 3 is provided with left jaw 31, and the top of right pincers piece 4 is provided with right jaw 41, and left and right jaw was in left and right pincers piece 3,4 inboards and corresponding in 31,41 minutes.The bottom of left side pincers piece 3 and right pincers piece 4 be located on the positioning and guiding axle 2 and can about movable, promptly positioning and guiding axle 2 vertically runs through the bottom of left side pincers piece 3 and right pincers piece 4, left side pincers piece 3 and right pincers piece 4 can along positioning and guiding axle 2 axially about movable.Positioning and guiding axle 2 left ends stretch out left side pincers piece 3 and are fixed on fixed mount 1 left side, and right-hand member stretches out right pincers piece 3 and is fixed on fixed mount 1 right side.Threaded screw rod 5 is between jaw and the positioning and guiding axle 2 and vertically runs through the middle part of left and right pincers piece 3,4, and about 5 two hand of spirals of threaded screw rod are opposite, and its left part is threaded with left side pincers piece 3, and right part is threaded with right pincers piece 4.A wherein end of threaded screw rod 5 stretches out outside the fixed mount; Handwheel 6 is in outside the fixed mount 1 and with a wherein end of threaded screw rod 5 and is fixedly connected; The other end of threaded screw rod 5 is located on the outer edge of fixed mount 1 and can rotates; Rotate handwheel 6 and can drive threaded screw rod 5 synchronous interlocks, left side pincers piece 3 with right clamp piece 4 follow on the threaded screw rod 5 about two opposite hand of spirals in opposite directions near clamping or opposing away from.
Jaw place on above-mentioned left side pincers piece 3 and the right pincers piece 4 is provided with the folder that matees with jaw.Should left side pincers piece 3 be the V-type jaw with the right jaw that clamps on the piece 4 particularly, the bottom angle of V-type jaw be 90 °.It is left folder 32 and right folder 42 that folder has two components; Left side folder 32 matees with right jaw 41 shapes with left jaw 31 respectively with right folder 42 each other; And left folder 32 all is that the bottom angle is 90 ° V-type folder with right folder 42, and two groups of bottom angles are that 90 ° V-type folder is fixed on left jaw 31 and right jaw 41 places through screw respectively.Two bottom angles be 90 ° V-type jaw or two bottom angle by 90 ° V-type folder institute correspondence formation be square clamping zone, this square clamping zone is convenient to circular shaft-like workpiece 7 accurate self-centerings greatly.
Before shaft-like workpiece 7 processing, elder generation bores centre clamp to self-centering and is installed on the bench drill, harmonizes the Clamping Center of anchor clamps and the alignment of shafts of drilling machine also fastening with the calibration plug again; Then circular shaft-like workpiece 7 the other side are placed between two jaws or the folder; Rotation hand wheel 6, the threaded screw rod 5 of two rightabout screw threads about utilization is furnished with makes left and right pincers piece 3,4 respectively simultaneously in opposite directions near circular shaft-like workpiece 7; And clamp, can carry out the drill centers operation this moment.Use through aforesaid operations, light round steel shaft-like workpiece is drawn in processing, and side-play amount can be controlled in 0.1-0.2mm, the shaft-like workpiece of machining blanks round steel, and side-play amount can be controlled in 0.3-0.5mm, the shaft-like workpiece of processing forging stock, side-play amount can be controlled in 0.4-0.6mm.
Claims (4)
1. self-centering drill centers anchor clamps is characterized in that comprising fixed mount, handwheel and are located at positioning and guiding axle, the threaded screw rod in the fixed mount, the left side pincers piece that is used for holding workpiece and right pincers piece; Pincers piece in a left side is respectively equipped with jaw with the top of right pincers piece, and it is inboard and corresponding that two jaw branches are in left and right pincers piece, the bottom of left side pincers piece and right pincers piece be located on the positioning and guiding axle and can about movable; Threaded screw rod is between jaw and the positioning and guiding axle and runs through the middle part of left and right pincers piece, and two hand of spirals are opposite about threaded screw rod, and its left part is threaded with left side pincers piece, and right part is threaded with right pincers piece; Handwheel is in the fixed mount outside and fixedlys connected with a wherein end of threaded screw rod.
2. a kind of self-centering drill centers anchor clamps according to claim 1 is characterized in that left side pincers piece and right pincers piece are parallel to each other, and threaded screw rod vertically runs through the middle part of left side pincers piece and right pincers piece, and positioning and guiding axle and threaded screw rod parallel.
3. based on claim 1 or 2 described a kind of self-centering drill centers anchor clamps, it is characterized in that said left side pincers piece and jaw place on the right pincers piece are provided with the folder with the jaw form fit respectively.
4. a kind of self-centering drill centers anchor clamps according to claim 3 is characterized in that said jaw is the inside V-type jaw of opening, and the bottom angle of V-type jaw is 90 °, with the folder of jaw form fit be that the bottom angle is 90 ° V-type folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205348018U CN202377802U (en) | 2011-12-19 | 2011-12-19 | Self-centering clamp for drilling center holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205348018U CN202377802U (en) | 2011-12-19 | 2011-12-19 | Self-centering clamp for drilling center holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202377802U true CN202377802U (en) | 2012-08-15 |
Family
ID=46626320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205348018U Expired - Fee Related CN202377802U (en) | 2011-12-19 | 2011-12-19 | Self-centering clamp for drilling center holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202377802U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990599A (en) * | 2012-12-10 | 2013-03-27 | 中国海洋石油总公司 | Assembly tongs |
| CN104191387A (en) * | 2014-07-22 | 2014-12-10 | 内蒙古工业大学 | Multi-shaft chain wheel transmission box capable of clamping variable diameter shell |
| CN105476202A (en) * | 2015-12-28 | 2016-04-13 | 东莞市汇腾智能设备科技有限公司 | Full-automatic spherical material perforating machine |
| CN105798651A (en) * | 2015-10-27 | 2016-07-27 | 济南大学 | Automatic aligning clamp of drilling machine |
| CN106271779A (en) * | 2016-09-30 | 2017-01-04 | 安阳鑫盛机床股份有限公司 | A kind of automatic centering clamp mechanism |
| CN106311834A (en) * | 2016-11-17 | 2017-01-11 | 讯龙型材折弯（合肥）有限公司 | Two-way synchronous bar bending mechanism |
| CN108145489A (en) * | 2018-01-24 | 2018-06-12 | 苏州日普模具有限公司 | A kind of work piece holder |
| CN108481037A (en) * | 2018-04-18 | 2018-09-04 | 衢州职业技术学院 | A kind of tooth set process equipment and processing method |
| CN108705682A (en) * | 2018-05-22 | 2018-10-26 | 中国地质大学（武汉） | Automate pearl puncher |
| CN112959120A (en) * | 2021-03-31 | 2021-06-15 | 深圳市太美亚电子科技有限公司 | Rapid centering device for processing cylinder center hole by utilizing handheld electric tool |
-
2011
- 2011-12-19 CN CN2011205348018U patent/CN202377802U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990599A (en) * | 2012-12-10 | 2013-03-27 | 中国海洋石油总公司 | Assembly tongs |
| CN102990599B (en) * | 2012-12-10 | 2015-09-23 | 中国海洋石油总公司 | A kind of assembling pincers |
| CN104191387A (en) * | 2014-07-22 | 2014-12-10 | 内蒙古工业大学 | Multi-shaft chain wheel transmission box capable of clamping variable diameter shell |
| CN105798651A (en) * | 2015-10-27 | 2016-07-27 | 济南大学 | Automatic aligning clamp of drilling machine |
| CN105476202A (en) * | 2015-12-28 | 2016-04-13 | 东莞市汇腾智能设备科技有限公司 | Full-automatic spherical material perforating machine |
| CN106271779A (en) * | 2016-09-30 | 2017-01-04 | 安阳鑫盛机床股份有限公司 | A kind of automatic centering clamp mechanism |
| CN106311834A (en) * | 2016-11-17 | 2017-01-11 | 讯龙型材折弯（合肥）有限公司 | Two-way synchronous bar bending mechanism |
| CN108145489A (en) * | 2018-01-24 | 2018-06-12 | 苏州日普模具有限公司 | A kind of work piece holder |
| CN108481037A (en) * | 2018-04-18 | 2018-09-04 | 衢州职业技术学院 | A kind of tooth set process equipment and processing method |
| CN108705682A (en) * | 2018-05-22 | 2018-10-26 | 中国地质大学（武汉） | Automate pearl puncher |
| CN112959120A (en) * | 2021-03-31 | 2021-06-15 | 深圳市太美亚电子科技有限公司 | Rapid centering device for processing cylinder center hole by utilizing handheld electric tool |
| CN112959120B (en) * | 2021-03-31 | 2022-03-29 | 深圳市太美亚电子科技有限公司 | Rapid centering device for processing cylinder center hole by utilizing handheld electric tool |
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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: 20120815 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |