CN101934480B - Centering fixture for disc-type helical tooth gear - Google Patents
Centering fixture for disc-type helical tooth gear Download PDFInfo
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- CN101934480B CN101934480B CN 201010251481 CN201010251481A CN101934480B CN 101934480 B CN101934480 B CN 101934480B CN 201010251481 CN201010251481 CN 201010251481 CN 201010251481 A CN201010251481 A CN 201010251481A CN 101934480 B CN101934480 B CN 101934480B
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Abstract
The invention relates to a centering fixture for a disc-type helical tooth gear, which is used for clamping the gear in the process of processing the center hole of the disc-type helical tooth gear. The centering fixture consists of a positioning disc, an end positioning body, a connecting seat and three jack catches, wherein the margin of the end face of the positioning disc is fixedly provided with support pillars along the circumferential direction; and each support pillar is sleeved with a cylindrical coiled spring. The centering fixture has the advantages of simple structure and convenient installation and clamping, can be used for clamping the gear in the process of processing the center hole of the disc-type helical tooth gear, and can improve the centering precision of the gear.
Description
Technical field
The present invention relates to the clamp for machining of machine components, particularly when processing dish class angular gear centre bore, be used for the centralizer of clamping gear.
Background technology
When adding the centre bore of work gear, must be with the centralizer clamping gear of gear, accurately to determine the center of gear.The centralizer of existing gear mainly contains two types, i.e. teeth groove location type and transverse tooth thickness location type.Teeth groove location type centralizer adopts circular roller or steel ball to position with the teeth groove of gear, and radially clamping force is applied on roller or the steel ball clamping that gear felt relieved.Transverse tooth thickness location type pitch-line chuck adopts the internal gear identical with the workpiece gear parameter that all teeth (full-depth tooth) of workpiece are positioned, having uniform 6～12 on the interior fluted disc circumference carefully meets, the outside makes outer cone and cooperates with the inner cone of another clamp part, through moving axially interior fluted disc is inwardly shunk, thereby realize the purpose that centering clamps to gear.
There is following defective in above-mentioned two types centralizer:
One, for teeth groove location type centralizer, on positioning accuracy, with circular roller the workpiece teeth groove is located, two aspect unfavorable factors are arranged, the one, be subjected to the influence of workpiece gear teeth groove self precision, the 2nd, circular roller can only be used for the centering of straight-tooth gear, if be used for angular gear, on the teeth directional can't with gear hand of spiral conformal, can not play the effect of location.If gear tooth slot is located with steel ball, two aspect unfavorable factors are also arranged, the one, be subjected to the influence of gear tooth slot self precision, the 2nd, be subjected to the influence of gear tooth width direction position location, the make progress precision at diverse location place of gear teeth is all variant, therefore, no matter be roller or steel ball location, its centering precision is not high.And on structural design, common centralizer structure is disperseed, be that claw and end locating piece independent design are on lathe, and localization part is designed to the retainer of hand-held, during use, in the retainer of earlier gear being packed into, again gear being reinstated hand together with retainer one is contained on the machine chuck and just processes after the location clamps, obviously, manipulate extremely inconvenience, efficient is low.From service life, the wall thickness of retainer structure own is thinner again, is easy to fracture when manufacturing and use, and roller or steel ball place on the retainer, and activity is big, the relatively difficulty of gear of packing into, and roller or steel ball easily come off, fall apart.On the Gear Processing precision, this free modes of emplacement of retainer causes the accuracy of gear that processes not high, and particularly gear teeth is difficult to guarantee that the accuracy of gear that processes all can not satisfy the product required precision to precision.
Two, for transverse tooth thickness location type centralizer, be a kind of full-depth tooth shape locating clip compact form centralizer in fact, this kind anchor clamps come down to the interior fluted disc with elastic shrinkage formula of band cut on the circumference, the internal gear manufacture difficulty of interior fluted disc is big, be difficult for guaranteeing its precision that have only external full-depth tooth shape pitch-line chuck could satisfy requirement on machining accuracy at present, the full-depth tooth shape pitch-line chuck of domestic use is all from external order, singly be to change an interior fluted disc just to need 5～60,000 yuan, the manufacturing cycle is four months.
In sum, full-depth tooth shape locating clip compact form centralizer manufacture difficulty is big, manufacturing cycle is long and manufacturing cost is high, though and teeth groove location type centralizer can be made by oneself at home, shortcoming such as have that the gear centering precision is low, the life-span is short, operation inconvenience and efficient are low.
Summary of the invention
The dish class angular gear centralizer that the purpose of this invention is to provide a kind of simple in structure, convenient mounting and clamping is used it for the clamping that dish class angular gear centre bore is added man-hour, can improve the centering precision of gear.
Dish class angular gear centralizer of the present invention, form by positioning disk, end positioning body, Connection Block and three claws, the end face of end positioning body is provided with location pillow block and at least three positioning boss, and offer locating hole, location pillow block and locating hole coaxial line, the end face of positioning boss be positioned at same plane and with the locating hole axis normal; The end face of Connection Block is provided with the location pillow block, and the end positioning body is fixedlyed connected with Connection Block, and the location pillow block of Connection Block is arranged in the locating hole and locating hole matched in clearance of end positioning body; Offer centre bore and boss via hole on the positioning disk, the end face edge of positioning disk is along circumferentially being fixed with support column, be set with cylindrically coiled spring on the support column, positioning disk is fixedlyed connected with the end positioning body, the location pillow block of end positioning body is arranged in the centre bore and centre bore matched in clearance of positioning disk, and described positioning boss passes from described boss via hole, protrudes in the positioning disk end face; Three claws circumferentially are evenly arranged in the positioning disk edge along positioning disk, the arc diameter of its clamping face is more than or equal to the diameter of the formed outer common tangent circle of cylindrically coiled spring, and can be pressed on the cylindrically coiled spring, can guarantee that cylindrically coiled spring as much as possible is pressed in the gear tooth slot, cylindrically coiled spring can be fitted along the flank of tooth of facewidth direction that is held gear and gear under the clamping of three claws.
The Connection Block of this centralizer is connected on the machine tool chief axis by bolt, and three claws are connected on the master jaw of machine tool chief axis by screw.
The location pillow block of Connection Block end face is from processing, so this location pillow block and machine tool chief axis coaxial line after Connection Block is connected on the machine tool chief axis with bolt.The clamping face of three claws (clamping arc surface) is from processing, so the formed face of cylinder of the clamping face of three claws and machine tool chief axis coaxial line after claw is connected on the machine tool chief axis with bolt.The positioning boss end face of end positioning body end face also is to fixedly connected the back with Connection Block from processing, so positioning boss end face and machine tool chief axis axis normal at the end positioning body.
During the clamping angular gear, the end face of angular gear is contacted with the positioning boss end face, and make cylindrically coiled spring be arranged in the teeth groove of angular gear, press machine tool hydraulic then and clamp button, three claws carry out self-centering by cylindrically coiled spring to gear and clamp, and start lathe and just can process gear center hole.
Dish class angular gear centralizer of the present invention adopts bending deformed cylindrically coiled spring that the gear spiral alveolar is carried out the whole process location, overcome linear pattern roller or steel ball can not conformal the shortcoming of location, thereby avoid of the influence of form of gear tooth local accuracy error, so improved the centering precision of gear to centering precision; And adopt many cylindrically coiled springs to locate, can obtain actual gear centre more exactly, make the centre bore that processes to reach very high axiality with the gear-wheel gear-ring center, when being the benchmark measurement gear, can reach very high precision such as gears tooth pitch accumulation, gear ring circular runout, tooth profile error and helix error with the centre bore that processes; The precision of location and clamping component is guaranteed from processing by lathe, no alignment error; The convenient mounting and clamping of gear is quick, anchor clamps simple in structure, easy for installation, low cost of manufacture.
Now in conjunction with the accompanying drawings the present invention is described in further detail.
Description of drawings
Fig. 1 is the schematic perspective view of dish class angular gear centralizer of the present invention;
Fig. 2 is the front view of Connection Block;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the front view of end positioning body;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is the front view of positioning disk;
Fig. 7 is the right view (having removed support column and cylindrically coiled spring) of Fig. 6,
Fig. 8 is positioning disk (having removed support column and cylindrically coiled spring) and the front view of holding after positioning body is connected.
The specific embodiment
Extremely shown in Figure 7 as Fig. 1, this dish class angular gear centralizer is made up of positioning disk 3, end positioning body 6, Connection Block 5 and three claws 1, the end face of end positioning body 6 is provided with location pillow block 9 and eight arc positioning boss 4, and offer locating hole 10, location pillow block 9 and locating hole 10 coaxial lines, the end face of positioning boss 4 be positioned at same plane and with locating hole 10 axis normal.The end face of Connection Block 5 is provided with location pillow block 8, and end positioning body 6 is fixedlyed connected with Connection Block 5, and the location pillow block 8 of Connection Block 5 is arranged in the locating hole 10 and locating hole 10 matched in clearance of end positioning body 6.Offer centre bore 11 and eight boss via holes 12 on the positioning disk 3, boss via hole 12 is corresponding with positioning boss 4 positions.The end face edge of positioning disk 3 is along circumferentially being fixed with support column 2, be set with cylindrically coiled spring 7 on the support column 2, positioning disk 3 is fixedlyed connected with end positioning body 6, the location pillow block 9 of end positioning body 6 is arranged in the centre bore 11 and centre bore 11 matched in clearance of positioning disk 3, and eight positioning boss 4 pass from eight boss via holes 12, protrude in positioning disk 3 end faces.Three claws 1 circumferentially are evenly arranged in positioning disk 3 edges along positioning disk 3, its clamping face is an arcwall face, its arc diameter is greater than the diameter of cylindrically coiled spring 7 formed outer common tangent circles, clamping face can be pressed on the cylindrically coiled spring 7, cylindrically coiled spring 7 can be fitted along the flank of tooth of facewidth direction that is held gear and gear under the clamping of three claws 1.
The arc diameter of described three claw 1 clamping faces also can equal the diameter of cylindrically coiled spring 7 formed outer common tangent circles.
Claims (1)
1. one kind coils class angular gear centralizer, it is characterized in that: form by positioning disk (3), end positioning body (6), Connection Block (5) and three claws (1), the end face of end positioning body is provided with location pillow block (9) and at least three positioning boss (4), and offer locating hole (10), location pillow block and locating hole coaxial line, the end face of positioning boss be positioned at same plane and with the locating hole axis normal; The end face of Connection Block is provided with location pillow block (8), and the end positioning body is fixedlyed connected with Connection Block, and the location pillow block of Connection Block is arranged in the locating hole and locating hole matched in clearance of end positioning body; Offer centre bore (11) and boss via hole (12) on the positioning disk, the end face edge of positioning disk is along circumferentially being fixed with support column (2), be set with cylindrically coiled spring (7) on the support column, positioning disk is fixedlyed connected with the end positioning body, the location pillow block of end positioning body is arranged in the centre bore and centre bore matched in clearance of positioning disk, and described positioning boss passes from described boss via hole, protrudes in the positioning disk end face; Three claws circumferentially are evenly arranged in the positioning disk edge along positioning disk, the arc diameter of its clamping face is more than or equal to the diameter of the formed outer common tangent circle of cylindrically coiled spring (7), and can be pressed on the cylindrically coiled spring cylindrically coiled spring under the clamping of three claws, can fit along the flank of tooth of facewidth direction that is held gear and gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010251481 CN101934480B (en) | 2010-08-12 | 2010-08-12 | Centering fixture for disc-type helical tooth gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010251481 CN101934480B (en) | 2010-08-12 | 2010-08-12 | Centering fixture for disc-type helical tooth gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101934480A CN101934480A (en) | 2011-01-05 |
| CN101934480B true CN101934480B (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010251481 Active CN101934480B (en) | 2010-08-12 | 2010-08-12 | Centering fixture for disc-type helical tooth gear |
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| CN (1) | CN101934480B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359796B (en) * | 2011-09-06 | 2014-04-09 | 成都银河磁体股份有限公司 | Centering clamp |
| CN103084899B (en) * | 2013-03-06 | 2015-04-08 | 中核（天津）机械有限公司 | Motor stator lathing clamp |
| CN107150152A (en) * | 2017-07-06 | 2017-09-12 | 宝鸡法士特齿轮有限责任公司 | A kind of welded gear many needle roller pitch-line chucks and its application method |
| CN107243760B (en) * | 2017-07-25 | 2023-05-23 | 成都银河动力有限公司 | Cylinder sleeve reaming clamp |
| CN110202328A (en) * | 2019-04-24 | 2019-09-06 | 东风商用车有限公司 | A kind of heavy-load automobile gearbox planetary gear sun gear cold-extrusion technology |
| DE102019207311A1 (en) * | 2019-05-20 | 2020-11-26 | Zf Friedrichshafen Ag | Process for the production and processing of a cylindrical hollow body made of aluminum or an aluminum alloy and for its arrangement in a motor vehicle transmission, cylindrical hollow body and vehicle transmission |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH646890A5 (en) * | 1980-10-07 | 1984-12-28 | Maag Zahnraeder & Maschinen Ag | CLAMPING DEVICE FOR A CUTTING WHEEL ON A SLOTING MACHINE. |
| JPH08174360A (en) * | 1994-12-26 | 1996-07-09 | Toyota Motor Corp | Gear grasping device |
| CN2741713Y (en) * | 2004-03-29 | 2005-11-23 | 陕西科技大学 | Indexing group processing grinding clamp |
| JP4529668B2 (en) * | 2004-12-09 | 2010-08-25 | いすゞ自動車株式会社 | Positioning jig for workpieces with axes |
| CN200960612Y (en) * | 2006-09-30 | 2007-10-17 | 江苏飞船股份有限公司 | Internal expansion positioning drill fixture |
| CN101585147A (en) * | 2008-05-21 | 2009-11-25 | 王伟 | Novel machine tool chuck |
| CN201211630Y (en) * | 2008-06-20 | 2009-03-25 | 江苏飞船股份有限公司 | Bevel gear pitch circle locating clamp |
| CN101722432A (en) * | 2008-10-10 | 2010-06-09 | 江苏飞船股份有限公司 | Bevel positioning lathe fixture for precision forging bevel gear |
| CN201446438U (en) * | 2009-05-19 | 2010-05-05 | 南京数控机床有限公司 | Chucking appliance for positioning and chucking tooth-shaped parts on lathe |
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2010
- 2010-08-12 CN CN 201010251481 patent/CN101934480B/en active Active
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| CN101934480A (en) | 2011-01-05 |
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