CN109047951A - One kind being used for high-precision tooth shaft external splines gear hobbing process fixture - Google Patents
One kind being used for high-precision tooth shaft external splines gear hobbing process fixture Download PDFInfo
- Publication number
- CN109047951A CN109047951A CN201811194262.0A CN201811194262A CN109047951A CN 109047951 A CN109047951 A CN 109047951A CN 201811194262 A CN201811194262 A CN 201811194262A CN 109047951 A CN109047951 A CN 109047951A
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- China
- Prior art keywords
- thimble
- collet
- rises
- gear
- fixing seat
- Prior art date
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 3
- 210000001320 hippocampus Anatomy 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 230000008602 contraction Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000007667 floating Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
本发明公开了一种用于高精度齿轴外花键滚齿加工夹具，其用于高精度齿轴外花键滚齿夹具安装在滚齿机顶针与工作台中间，由夹具体、工件构成。由于夹具体采用了浮动式的内顶针先定位了工件中心孔，同步涨夹套外圆夹紧了工件方式，改进了传统的外圆定位精度低夹持方式，提高了齿形尺寸精度，产品一次合格率达到了99%以上。
The invention discloses a jig for high-precision gear shaft external spline hobbing. The jig for high-precision gear shaft external spline hobbing is installed between a hobbing machine thimble and a worktable, and is composed of a clamp body and a workpiece. Since the clamp body adopts the floating inner thimble to first locate the center hole of the workpiece, and the outer circle of the synchronous expansion jacket clamps the workpiece, the traditional clamping method with low positioning accuracy of the outer circle is improved, and the dimensional accuracy of the tooth shape is improved. The product A pass rate of more than 99%.
Description
Technical field
The present invention relates to one kind to be used for high-precision tooth shaft external splines gear hobbing process fixture, belongs to gear machining technology field.
Background technique
Currently, mostly using the clamping side of scroll chuck clamping splined shaft outer circle greatly in tooth shaft male splined shaft gear hobbing process
Formula, this conventional installation way, although advantage simple with clamping, without special fixture investment.But there is with outer circle
The positioning of clamping is then clamped and is beated in tooth Profile Machining caused by imbalance, and tooth form control precision is low, and jerk value is big, in addition exists
Clamping manually to rotate gripping dogs with clamp, and production efficiency is low.This manual operation and the low positioning clamping side of positioning accuracy
Formula seriously constrains the processing of high class gear.
Summary of the invention
It is with high accuracy a kind of for high-precision tooth shaft external splines gear hobbing process that the purpose of the present invention is to provide Set and Positionings
Fixture.
Its technical solution is: one kind being used for high-precision tooth shaft external splines gear hobbing process fixture, it is characterised in that: described one
Kind is mounted among gear-hobbing machine thimble and workbench for high-precision tooth shaft external splines gear-hobbing clamp, by clamp body, workpiece (tooth
Axis) it constitutes.
The clamp body from top to down, successively by top board, the collet that rises, fixing seat, lower thimble, lower tailstock barrel, lower top
Needle spring, lower thimble Adjusting bolt Adjusting screw, lower pallet, lower pallet Adjusting bolt Adjusting screw, subiculum flat spring, subiculum crab bolt are constituted, described
Fixing seat is fixedly installed in gear hobbing machine worktable plane, and top board is fixed on fixing seat, and the collet that rises is movably installed in fixing seat
Hole, collet one end outer circle that rises are male cone (strobilus masculinus), and the length for being provided in the axial direction with several for elastic shrinkage is equipped on its male cone (strobilus masculinus)
Slot, male cone (strobilus masculinus) are matched with fixing seat with the inner conical surface at position, and in the case where (separation) state is closed in conical surface conjunction, work rises the folder of collet
Tightly, release acts, and lower thimble, lower tailstock barrel, lower thimble spring, lower thimble Adjusting bolt Adjusting screw are successively installed on the other end for the collet that rises
Lower tailstock barrel inner hole is installed in inner hole, the internal screw thread tightening of lower thimble Adjusting bolt Adjusting screw and the collet that rises, lower thimble activity, and in lower thimble
Under the action of spring, make axial up and down motion, lower pallet, lower pallet Adjusting bolt Adjusting screw, subiculum flat spring, subiculum crab bolt are successively pacified
Loaded on fixing seat other end inner hole, lower pallet is installed in the internal screw thread tightening of lower pallet Adjusting bolt Adjusting screw and fixing seat, lower pallet activity
Adjusting bolt Adjusting screw inner hole, and under the action of lower thimble spring, the big plane promotion of lower pallet one end rises by collet along fixing seat inner hole
Make axial up and down motion, the other end installation of lower pallet is equipped with the subiculum crab bolt that tightening is adjusted；
Described workpiece one end is positioned by clamp body and is clamped, and the other end is compressed by gear-hobbing machine thimble.
Its technical effect is that: it first located workpiece center hole since clamp body uses floating type interior thimble, synchronize and rise
Collet outer circle is clamped workpiece mode, improves traditional low method of clamping of excircle orientation precision, improves tooth proportions precision,
Product first-time qualification rate has reached 99% or more.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is clamp body component the schematic diagram of the section structure；
Fig. 3 is the K point enlarged drawing of Fig. 2.
Specific embodiment
As shown in Figure 1, a kind of be used for high-precision tooth shaft external splines gear hobbing process fixture, it is characterised in that: described one kind
It is mounted among gear-hobbing machine thimble 110 and workbench 111 for high-precision tooth shaft external splines gear-hobbing clamp, by clamp body 2, workpiece
(tooth shaft) 1 is constituted.
As shown in the K point enlarged drawing of Fig. 2, Fig. 3, the clamp body 2 from top to down, successively by top board 21, rise collet
22, fixing seat 23, lower thimble 24, lower tailstock barrel 25, lower thimble spring 26, lower thimble Adjusting bolt Adjusting screw 27, lower pallet 28, lower pallet
Adjusting bolt Adjusting screw 29, subiculum flat spring 210, subiculum crab bolt 211 are constituted, and the fixing seat 23 is fixedly installed in gear-hobbing machine work
111 plane of platform, top board 21 are fixed on 23 one end of fixing seat, and the collet 22 that rises is movably installed in 23 inner hole of fixing seat, and rise collet
23 one end outer circles are male cone (strobilus masculinus), and the elongated slot for being provided in the axial direction with several for elastic shrinkage, outer cone are equipped on its male cone (strobilus masculinus)
Face is matched with fixing seat 23 with the inner conical surface at position, and in the case where (separation) state is closed in conical surface conjunction, work rises the bullet of 22 male cone (strobilus masculinus) of collet
Property clamp, release movement, lower thimble 24, lower tailstock barrel 25, lower thimble spring 26, lower thimble Adjusting bolt Adjusting screw 27 are successively installed on and rise
The other end inner hole of collet 23, the internal screw thread tightening of lower thimble Adjusting bolt Adjusting screw 27 and the collet 23 that rises, under lower 24 activity installation of thimble
25 inner hole of tailstock barrel, and under the action of lower thimble spring 26, make axial up and down motion, lower pallet 28, lower pallet Adjusting bolt Adjusting screw
29, subiculum flat spring 210, subiculum crab bolt 211 are successively installed on 23 other end inner hole of fixing seat, lower pallet Adjusting bolt Adjusting screw 29 with
The internal screw thread tightening of fixing seat 23,28 activity installation 29 inner hole of lower pallet Adjusting bolt Adjusting screw of lower pallet, and in lower thimble spring 210
Under effect, the big plane promotion of 28 one end of lower pallet rises by collet 22 along the axial up and down motion of 23 inner hole of fixing seat work, lower pallet 28
The other end installation be equipped with tightening adjust subiculum crab bolt 211；
It is clamped as shown in Figure 1, described 1 one end of workpiece (tooth shaft) is positioned by clamp body 2, the other end is pressed by gear-hobbing machine thimble 110
Tightly.
Its course of work: above-mentioned fixture is mounted on gear hobbing machine worktable, the lower thimble of alignment jig first is top and rolls
Tooth machine thimble point on the same line (concentric), by the good gear-hobbing machine impulse stroke of workpiece (tooth shaft) length adjustment.Manually by workpiece
(tooth shaft) is put into the collet inner hole that rises of fixture, and one end centre bore of workpiece (tooth shaft) matches with lower thimble needle point.
Start gear hobbing electromechanical source, gear-hobbing machine movement moves downward thimble, the center of top tight workpiece (tooth shaft) other end
Hole, synchronous that the collet that rises is pushed integrally to be displaced axially downwards along fixing seat inner hole, the long groove face of the elastic shrinkage for the collet that rises is closed in the conical surface
Under the action of closing, to contract, workpiece (tooth shaft) outer circle is clamped.
After the gear hobbing movement for opening workpiece (tooth shaft), the upward backhaul of thimble is unclamped workpiece (tooth shaft) end face center by gear-hobbing machine movement
The big plane of lower pallet in hole, collet lower part of rising acts upwards, and the collet that rises is pushed integrally axially upwardly to be displaced back along fixing seat inner hole
Journey, the long groove face of elastic shrinkage for the collet that at this moment rises flick outward under conical surface centrifugation, unclamp workpiece (tooth shaft) outer circle, people
The workpiece (tooth shaft) of work taking-up completion of processing.
Continue to be manually placed into workpiece (tooth shaft), completes the above-mentioned circulation action hold out against, clamp, unclamped, realize workpiece
The centralized positioning of (tooth shaft) gear hobbing process, the action process that outer circle clamps.
Claims (3)
1. one kind is used for high-precision tooth shaft external splines gear hobbing process fixture, it is characterised in that: described one kind is used for high-precision tooth
Axis external splines gear-hobbing clamp is mounted among gear-hobbing machine thimble and workbench, is made of clamp body, workpiece；
The clamp body from top to down, successively by top board, the collet that rises, fixing seat, lower thimble, lower tailstock barrel, lower thimble bullet
Spring, lower thimble Adjusting bolt Adjusting screw, lower pallet, lower pallet Adjusting bolt Adjusting screw, subiculum flat spring, subiculum crab bolt are constituted, the fixation
Seat is fixedly installed in gear hobbing machine worktable plane, and top board is fixed on fixing seat, and the collet that rises is movably installed in fixing seat inner hole,
Collet one end outer circle that rises is male cone (strobilus masculinus), and the elongated slot for being provided in the axial direction with several for elastic shrinkage is equipped on its male cone (strobilus masculinus),
Male cone (strobilus masculinus) is matched with fixing seat with the inner conical surface at position, the conical surface conjunction close (separation) state under, make rise collet clamping, release
Movement, lower thimble, lower tailstock barrel, lower thimble spring, lower thimble Adjusting bolt Adjusting screw are successively installed on the other end inner hole for the collet that rises, under
Lower tailstock barrel inner hole is installed in the internal screw thread tightening of thimble Adjusting bolt Adjusting screw and the collet that rises, lower thimble activity, and in lower thimble spring
Under effect, make axial up and down motion, lower pallet, lower pallet Adjusting bolt Adjusting screw, subiculum flat spring, subiculum crab bolt are successively installed on solid
The internal screw thread tightening of reservation other end inner hole, lower pallet Adjusting bolt Adjusting screw and fixing seat, lower pallet activity install lower pallet and adjust spiral shell
Inner hole is covered, and under the action of lower thimble spring, it is axial that the big plane of lower pallet one end pushes the collet that rises to make along fixing seat inner hole
It moves up and down, the other end installation of lower pallet is equipped with tightening and adjusts the subiculum crab bolt having；
Described workpiece one end is positioned by clamp body and is clamped, and the other end is compressed by gear-hobbing machine thimble.
2. according to claim 1 a kind of for high-precision tooth shaft external splines gear hobbing process fixture, it is characterised in that: described
Plane is tapered surface on top board, groove is opened up on tapered surface, in favor of the iron filings separating clamp of gear hobbing process.
3. according to claim 1 a kind of for high-precision tooth shaft external splines gear hobbing process fixture, it is characterised in that: clamping
Mode is after Double ejection pin positions workpiece center hole, and synchronous in gear-hobbing machine thimble workpiece pressing, rise collet contraction clip clamping of workpieces outer circle,
Positioning accuracy is high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194262.0A CN109047951A (en) | 2018-10-15 | 2018-10-15 | One kind being used for high-precision tooth shaft external splines gear hobbing process fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194262.0A CN109047951A (en) | 2018-10-15 | 2018-10-15 | One kind being used for high-precision tooth shaft external splines gear hobbing process fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109047951A true CN109047951A (en) | 2018-12-21 |
Family
ID=64764707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811194262.0A Pending CN109047951A (en) | 2018-10-15 | 2018-10-15 | One kind being used for high-precision tooth shaft external splines gear hobbing process fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109047951A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042183A (en) * | 2002-07-11 | 2004-02-12 | Honda Motor Co Ltd | Clamping jig for gear cutting machine |
| CN103894683A (en) * | 2014-03-04 | 2014-07-02 | 秦宗正 | Hobbing clamp for machining shaft gear |
| CN204234905U (en) * | 2014-09-24 | 2015-04-01 | 仙居县华乐机械有限公司 | A kind of gear teeth clamp |
| CN205464621U (en) * | 2016-01-11 | 2016-08-17 | 重庆众青齿轮有限公司 | High accuracy shaft gear hobbing clamp |
| CN106513869A (en) * | 2016-12-26 | 2017-03-22 | 无锡威孚中意齿轮有限责任公司 | Gear grinding fixture adopting end surface drive for small gear shaft |
| CN206732293U (en) * | 2017-05-09 | 2017-12-12 | 綦江嘉洲齿轮传动有限公司 | A kind of gear-hobbing clamp |
| CN207681649U (en) * | 2018-01-05 | 2018-08-03 | 双环传动（嘉兴）精密制造有限公司 | A kind of disk gear precise grinding clamp |
| CN207681646U (en) * | 2017-10-20 | 2018-08-03 | 双环传动（嘉兴）精密制造有限公司 | A kind of axis tooth clamp for machining |
| CN209062290U (en) * | 2018-10-15 | 2019-07-05 | 安徽明雁齿轮有限公司 | One kind being used for high-precision tooth shaft external splines gear hobbing process fixture |
-
2018
- 2018-10-15 CN CN201811194262.0A patent/CN109047951A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042183A (en) * | 2002-07-11 | 2004-02-12 | Honda Motor Co Ltd | Clamping jig for gear cutting machine |
| CN103894683A (en) * | 2014-03-04 | 2014-07-02 | 秦宗正 | Hobbing clamp for machining shaft gear |
| CN204234905U (en) * | 2014-09-24 | 2015-04-01 | 仙居县华乐机械有限公司 | A kind of gear teeth clamp |
| CN205464621U (en) * | 2016-01-11 | 2016-08-17 | 重庆众青齿轮有限公司 | High accuracy shaft gear hobbing clamp |
| CN106513869A (en) * | 2016-12-26 | 2017-03-22 | 无锡威孚中意齿轮有限责任公司 | Gear grinding fixture adopting end surface drive for small gear shaft |
| CN206732293U (en) * | 2017-05-09 | 2017-12-12 | 綦江嘉洲齿轮传动有限公司 | A kind of gear-hobbing clamp |
| CN207681646U (en) * | 2017-10-20 | 2018-08-03 | 双环传动（嘉兴）精密制造有限公司 | A kind of axis tooth clamp for machining |
| CN207681649U (en) * | 2018-01-05 | 2018-08-03 | 双环传动（嘉兴）精密制造有限公司 | A kind of disk gear precise grinding clamp |
| CN209062290U (en) * | 2018-10-15 | 2019-07-05 | 安徽明雁齿轮有限公司 | One kind being used for high-precision tooth shaft external splines gear hobbing process fixture |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |