CN103386514A - High-precision fast-change clamp for grinding inner hole of outer-tooth gear - Google Patents
High-precision fast-change clamp for grinding inner hole of outer-tooth gear Download PDFInfo
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- CN103386514A CN103386514A CN201310337564XA CN201310337564A CN103386514A CN 103386514 A CN103386514 A CN 103386514A CN 201310337564X A CN201310337564X A CN 201310337564XA CN 201310337564 A CN201310337564 A CN 201310337564A CN 103386514 A CN103386514 A CN 103386514A
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- tooth gear
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Abstract
The invention provides a high-precision fast-change clamp for grinding an inner hole of an outer-tooth gear. The clamp comprises a three-step clamping claw, a clamping sleeve fixing block, a clamping sleeve, measuring ball positioning units and a positioning disc; the third step of the three-step clamping claw is arranged at the clamp claw mounting position of a lathe body; the lower end face of the positioning disc is fixedly connected onto the lathe body; the lower end face of the clamping sleeve is arranged on the upper end face of the positioning disc; the outside face of the clamping sleeve fixing block is contacted with the inside face of the first step of the three-step clamping claw; the inside face of the clamping sleeve fixing block is contacted with the outside face of the clamping sleeve; and the multiple measuring ball positioning units are uniformly distributed on the inside face of the clamping sleeve and are formed by multiple metal beads with through holes. The high-precision fast-change clamp for grinding the inner hole of the outer-tooth gear has the beneficial effects of increasing the clamping area and homogenizing the clamping force by replacing the original three-claw clamp disc with the clamping sleeve, and simplifying the requirements of performing high-precision coping on three claws during the original three-claw clamping. If the clamp is used when the tooth number is not exactly divided by three, the post-jumping of the grinding is effectively reduced, the inner circle-grinding precision of the gear is improved and the outer tooth diameter jumping precision is improved.
Description
Technical field
The present invention relates to a kind of high accuracy external tooth gear fluffing hole magic chuck.
Background technology
Generally use three-jaw chuck and length bar to clamp the mode of pitch circle in existing external tooth process.Easily because of after the three-jaw chuck reconditioning the diameter of a circle that forms and length bar cylindrical place diameter of a circle inconsistent, make that holding area deficiency or chucking power are inhomogeneous to be caused footpath to jump unsettled situation to occur.And it is particularly serious affect by this by the three lower outside helical teeth of situation about dividing exactly in the number of teeth.When operation misoperation easily length bar is misplaced teeth groove and makes machining accuracy not up to standard.It is excessive that all above-mentioned situations cause after grinding external tooth to beat, and greatly affected the accuracy of gear, and the noise while having strengthened simultaneously engagement, make the gear end product quality descend.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of high accuracy external tooth gear fluffing hole magic chuck, in order to hole in the mill of high-efficiency high-accuracy processing external tooth gear.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
a kind of high accuracy external tooth gear fluffing hole magic chuck, comprise three ladder jaws, the gripping sleeve fixed block, gripping sleeve, amount ball positioning unit, positioning disk, the 3rd ladder of described three ladder jaws is arranged on machine body jaw installation site, the lower surface of described positioning disk is fixed on machine body, the lower surface of described gripping sleeve is arranged on the upper surface of described positioning disk, the medial surface of described three ladder jaw first ladders of lateral surface contact of described gripping sleeve fixed block, the lateral surface of the described gripping sleeve of medial surface contact of gripping sleeve fixed block, uniform several amount ball positioning units on the medial surface of described gripping sleeve, described amount ball positioning unit is comprised of several metal balls by through hole.
Further, also comprise fastening bolt, described fastening bolt is connected to the gripping sleeve fixed block on described three ladder jaws by the counterbore on described gripping sleeve fixed block.
Further, also comprise fine adjustment screw, described fine adjustment screw is arranged in the tapped through hole of the first ladder position of described three ladder jaws, the position of the length of screw-in fine setting gripping sleeve fixed block.
Further, described amount ball positioning unit passes several metal balls by through hole by an one metal wire and forms, and the wire two ends are fixed on the medial surface of described gripping sleeve.
Further, described amount ball positioning unit arranges array in the width overlay area of the piece that is fixedly clamped.
Further, the interior circular diameter of described gripping sleeve has plurality of specifications to coordinate different processing works, fast changeable.
Advantage and good effect that the present invention has are: replace the three-jaw chuck clamping by gripping sleeve, it is also more even that holding area increases the clamping dynamics to some extent, reduced to jump unsettled situation by the inhomogeneous footpath of causing of clamping dynamics.Need carry out the requirement of high accuracy reconditioning while having simplified former three-jaw clamping to three-jaw.Beat after using the present invention to effectively reduce grinding when the number of teeth is not divided exactly by three, improve gear grinding inner circle precision and external tooth footpath and jump precision.
Description of drawings
Fig. 1 is that the present invention assembles explosive view;
Fig. 2 is traditional frock front view.
In figure:
1-three ladder jaws; The 2-fine adjustment screw; 3-gripping sleeve fixed block; The 4-fastening bolt; The 5-gripping sleeve; 6-amount ball positioning unit; The 7-positioning disk.
The specific embodiment
as shown in Figure 1, the present invention relates to a kind of high accuracy external tooth gear fluffing hole magic chuck, comprise three ladder jaws 1, gripping sleeve fixed block 3, gripping sleeve 5, amount ball positioning unit 6, positioning disk 7, the 3rd ladder of described three ladder jaws 1 is arranged on machine body jaw installation site, the lower surface of described positioning disk 7 is fixed on machine body, the lower surface of described gripping sleeve 5 is arranged on the upper surface of described positioning disk 7, the medial surface of the first ladder of the described three ladder jaws 1 of lateral surface contact of described gripping sleeve fixed block 3, the lateral surface of the described gripping sleeve 5 of medial surface contact of gripping sleeve fixed block 3, uniform several amount ball positioning units 6 on the medial surface of described gripping sleeve 5, described amount ball positioning unit is comprised of several metal balls by through hole.Also comprise fastening bolt 4, described fastening bolt 4 is connected to gripping sleeve fixed block 3 on described three ladder jaws 1 by the counterbore on described gripping sleeve fixed block 3.Also comprise fine adjustment screw 2, described fine adjustment screw 2 is arranged in the tapped through hole of the first ladder position of described three ladder jaws 1, the position of the length of screw-in fine setting gripping sleeve fixed block 3.Described amount ball positioning unit 6 passes several metal balls by through hole by an one metal wire and forms, and the wire two ends are fixed on the medial surface of described gripping sleeve 5.Described amount ball positioning unit 6 arranges array in the width overlay area of piece 3 that is fixedly clamped.The interior circular diameter of described gripping sleeve 5 has plurality of specifications to coordinate different processing works, fast changeable.
Generally use the mode of three-jaw chuck and length bar clamping pitch circle in existing external tooth process as shown in Figure 2, the gear number of teeth of no matter processing what and external tooth tip diameter size all adopt three-jaw chuck to carry out clamping., for the workpiece to be processed of different-diameter, all need the clamping disc of three-jaw chuck is carried out reconditioning before each processing, to reach and the accurately requirement of laminating of required processing work cylindrical.After reconditioning, clamping work pieces carries out internal grinding processing.Use as described in Figure 2 fixed three modes that length bar positions in the situation of 40 teeth, have length bar situation pockety on tooth.Add the situation that likely causes man-hour processing work axis and lathe axis to depart from, be difficult to guarantee the precision in hole in workpiece after processing, thereby cause the external tooth precision bad.
The present invention program's course of work: work front first according to gear relative gripping sleeve 5 of the selection size of the outside diameter circle after the amount of establishing ball in teeth groove of required processing, the medial surface gap of outside diameter circle and gripping sleeve 5 is at 0.05-0.1mm.Determine again the quantity (minimum number is three) of the amount ball positioning unit 6 of required installation according to the number of teeth, if adopting the external gear of 40 teeth to add man-hour needed minimum can be divided exactly by 40, and the number greater than three is four or more, but must meet in the zone that piece 3 width that are fixedly clamped cover.So select four groups of amount ball positioning units 6 to be distributed on gripping sleeve 5 inboards.The wire of amount ball positioning unit 6 has certain Flexible change space, when workpiece is installed in the groove of amount ball positioning unit 6 energy precise positionings between adjacent teeth of gripping sleeve 5 inboards.After the workpiece installation, start lathe.Three ladder jaws 1 clamp and drive gripping sleeve fixed block 3, and the clamping force that gripping sleeve fixed block 3 is received is transmitted on gripping sleeve 5.Gripping sleeve 5 produces micro-deformation 0.1-0.3mm, and after distortion, workpiece is clamped, carries out the grinding of inner hole.
Above one embodiment of the present of invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., within all should still belonging to patent covering scope of the present invention.
Claims (6)
1. high accuracy external tooth gear fluffing hole magic chuck, it is characterized in that: comprise three ladder jaws (1), gripping sleeve fixed block (3), gripping sleeve (5), amount ball positioning unit (6), positioning disk (7), the 3rd ladder of described three ladder jaws (1) is arranged on machine body jaw installation site, the lower surface of described positioning disk (7) is fixed on machine body, the lower surface of described gripping sleeve (5) is arranged on the upper surface of described positioning disk (7), the medial surface of the first ladder of the described three ladder jaws (1) of lateral surface contact of described gripping sleeve fixed block (3), the lateral surface of the medial surface described gripping sleeve of contact (5) of gripping sleeve fixed block (3), uniform several amount ball positioning units (6) on the medial surface of described gripping sleeve (5), described amount ball positioning unit is comprised of several metal balls by through hole.
2. a kind of high accuracy external tooth gear fluffing according to claim 1 hole magic chuck, it is characterized in that: also comprise fastening bolt (4), described fastening bolt (4) is connected to gripping sleeve fixed block (3) on described three ladder jaws (1) by the counterbore on described gripping sleeve fixed block (3).
3. a kind of high accuracy external tooth gear fluffing according to claim 1 hole magic chuck, it is characterized in that: also comprise fine adjustment screw (2), described fine adjustment screw (2) is arranged in the tapped through hole of the first ladder position of described three ladder jaws (1), the position of screw-in length fine setting gripping sleeve fixed block (3).
4. a kind of high accuracy external tooth gear fluffing according to claim 1 hole magic chuck, it is characterized in that: described amount ball positioning unit (6) passes several metal balls by through hole by an one metal wire and forms, and the wire two ends are fixed on the medial surface of described gripping sleeve (5).
5. according to claim 1 or 4 described a kind of high accuracy external tooth gear fluffing hole magic chucks, it is characterized in that: described amount ball positioning unit (6) arranges array in the width overlay area of the piece that is fixedly clamped (3).
6. a kind of high accuracy external tooth gear fluffing according to claim 1 hole magic chuck, it is characterized in that: the interior circular diameter of described gripping sleeve (5) has plurality of specifications to coordinate different processing works, fast changeable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337564XA CN103386514A (en) | 2013-08-05 | 2013-08-05 | High-precision fast-change clamp for grinding inner hole of outer-tooth gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337564XA CN103386514A (en) | 2013-08-05 | 2013-08-05 | High-precision fast-change clamp for grinding inner hole of outer-tooth gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103386514A true CN103386514A (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310337564XA Pending CN103386514A (en) | 2013-08-05 | 2013-08-05 | High-precision fast-change clamp for grinding inner hole of outer-tooth gear |
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| CN (1) | CN103386514A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345656A (en) * | 2015-12-06 | 2016-02-24 | 江麓机电集团有限公司 | Inner circle machining positioning and clamping device |
| CN107639309A (en) * | 2017-10-31 | 2018-01-30 | 河南柴油机重工有限责任公司 | A kind of centering helical gear flank of tooth teeth groove center positioning tool and processing method |
| CN111761138A (en) * | 2020-05-30 | 2020-10-13 | 浙江三欢齿轮有限公司 | Gear scraping machine |
| CN115958255A (en) * | 2023-02-17 | 2023-04-14 | 江苏新银叶传动机电有限公司 | Positioning and clamping device for polishing wind power gear |
-
2013
- 2013-08-05 CN CN201310337564XA patent/CN103386514A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345656A (en) * | 2015-12-06 | 2016-02-24 | 江麓机电集团有限公司 | Inner circle machining positioning and clamping device |
| CN107639309A (en) * | 2017-10-31 | 2018-01-30 | 河南柴油机重工有限责任公司 | A kind of centering helical gear flank of tooth teeth groove center positioning tool and processing method |
| CN111761138A (en) * | 2020-05-30 | 2020-10-13 | 浙江三欢齿轮有限公司 | Gear scraping machine |
| CN115958255A (en) * | 2023-02-17 | 2023-04-14 | 江苏新银叶传动机电有限公司 | Positioning and clamping device for polishing wind power gear |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131113 |
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| WD01 | Invention patent application deemed withdrawn after publication |