CN2258935Y - Envelope worm index cam gear - Google Patents
Envelope worm index cam gear Download PDFInfo
- Publication number
- CN2258935Y CN2258935Y CN 95232871 CN95232871U CN2258935Y CN 2258935 Y CN2258935 Y CN 2258935Y CN 95232871 CN95232871 CN 95232871 CN 95232871 U CN95232871 U CN 95232871U CN 2258935 Y CN2258935 Y CN 2258935Y
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- China
- Prior art keywords
- index
- indexing
- cam
- index plate
- gear teeth
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims description 17
- 235000008429 bread Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
The utility model relates to an envelope worm indexing cam device which is composed of an indexing cam, an indexing disc, a drive shaft and a box body, wherein the indexing disc is a worm wheel which adopts an entire structural form, a plurality of wheel teeth which are provided with specified tooth profile surfaces are evenly distributed on the circumference of the indexing disc, tooth profile surfaces of the indexing cam are formed by the envelope of the tooth profile surfaces of the wheel teeth of the indexing disc, and the indexing cam and the indexing disc are driven without a side clearance. The envelope worm indexing cam device is provided with a center distance adjusting mechanism which can conveniently carry out adjustment in the circumferential direction and in the shaft direction. The envelope worm indexing cam device has the characteristics of simple structure, easy manufacture and assemblage, high indexing accuracy, stable drive, etc. The utility model is especially suitable for intermittent drive with high speed and high accuracy.
Description
The utility model belongs to interrupted division sports envelope worm indexing cam gear.
Existing ferguson cam mechanism, its driving link are to have guiding groove anchor ring shape index cam, and driven member is the index plate that the several cylinders roller circumferentially is housed.Anchor ring shape cam is done the constant speed revolution, and its flank profil face promotes the roller on the index plate, realizes the interrupted division motion of index plate.This mechanism compares with the parallel axes indexing cam mechanism has good high-speed, high precision performance, reliable operation etc.Be widely used in fields such as light industry, electronics, machinery, become the important composition parts of automatic.But the globoid cam indexing mechanism still exists some to need improvements.Such as
(1) index plate is made up of roller, roller axle and three parts of index plate housing, and roller installs on the index plate housing by the roller axle.Surface of contact is more between three parts, and contact stiffness reduces.Very high to the required precision of part processing device.Because of structural limitations, the roller axle diameter of axle is thinner, and is cantilevered fashion.Therefore, bending deflection is big, and rigidity is poor, and static and dynamic performance is bad.
(2) because of being no sideshake transmission, when roller contacts with the wide face of index cam, will produce bigger sliding friction, heating is big.Roller is with index cam is big for contacting firmly, wearing and tearing, working life is low.
For guaranteeing no sideshake transmission, centre distance will be adjusted between index cam and the index plate when (3) assembling.Index cam is axially circumferential, and index plate axially will be adjusted respectively, adjusts trouble, is difficult for guaranteeing.It is to adopt index cam axle two ends that an eccentric disc regulative mode is respectively arranged that existing centre distance is adjusted structure, and it is many to adjust link, has increased the difficulty of adjusting.
Above-mentioned deficiency is to the indexing accuracy of indexing mechanism, and dynamic and static state performance and manufacture cost influence are very big.
The purpose of this utility model provides a kind of novel, can realize the enveloping worm worm-gear type indexing cam mechanism of interrupted division motion, it can keep all advantages of existing arc surfaced indexing cam, and can also overcome the deficiency of present globoid cam indexing mechanism.Simple in structure, be easy to make, good assembling, easy to adjust, structural rigidity is good, and transmission accuracy height, static and dynamic performance are good, with low cost.
The technical solution that the utility model proposes is: the enveloping worm index cam device of being made up of index cam, index plate, transmission shaft and casing, its major technique feature is that index plate (4) is the overall structure worm gear, is evenly distributed with the gear teeth that several have specific flank profil face on its circumference.It and index plate transmission shaft (8) adopt cone match, with nut (10) positioning and locking, see accompanying drawing 1.
Index cam (15) is cylindric, makes one with axle.Have the common wheel flank profil face that goes out by index plate gear tooth profile bread network on the cylndrical surface, become enveloping worm.In casing (1), enveloping worm and index plate transmission shaft (8) space interlaced arrangement.Index cam (15) is contained in the integrated type eccentric adjusting sleeve (18), and eccentric adjusting sleeve is contained in the casing 1, is fixed on the casing by screw (22), sees accompanying drawing 2.
Index cam and index plate are no sideshake transmissions, and the axial position of index cam is axially adjusted bolt dish (17) by two in the eccentric adjusting sleeve (18) and adjusted the location.Circumferential position is adjusted bolt (3) by two and is adjusted the location, and an end of adjusting bolt (3) withstands in the groove of eccentric adjusting sleeve (18), and the other end is screwed on the casing, with tightening nut (2) locking.
The gear teeth of specific flank profil face can be the cylindric flank profil face gear teeth on the index plate circumference; Can be the involute profile face gear teeth; Can be the plane flank profil face gear teeth, see accompanying drawing 3,4,5 respectively.
Technological guidance's thought of the present utility model is to make the enveloping worm indexing cam mechanism working principle that is proposed identical with space cam graduation mechanism, and drive technology is incorporated into the design and the manufacturing field of cam mechanism, remove to create into the flank profil face of index cam with index plate gear tooth profile face, use the transmission principle and the technology of worm and worm gear, solve index cam and index plate accuracy of manufacturing and required problems such as high and difficult assembling, thereby improved indexing accuracy effectively.
The utlity model has the indexing accuracy height, stable drive, quiet good dynamic characteristic, reliable operation is particularly suited for high speed, highi degree of accuracy transmission.The index cam and the index plate gear teeth are the point gearing transmission, wear and tear little, noise is low, heating is little, the life-span is long.Replace existing globoid cam indexing mechanism, have tangible economic benefit and value with it.
Accompanying drawing 1 is an enveloping worm index cam structure drawing of device.
Accompanying drawing 2 is sectional views of enveloping worm index cam structure drawing of device.
Accompanying drawing 3 is cylndrical surface enveloping worm indexing cam mechanism sketches.
Accompanying drawing 4 is involute cylinder enveloping worm indexing cam mechanism sketches.
Accompanying drawing 5 is planar envelope worm indexing cam mechanism sketches.
Wherein: the 1-casing, the 2-tightening nut, 3-adjusts bolt, 4-index plate, 5-Cock screw, the 6-joint bolt, 7-flange plate, 8-index plate transmission shaft, 9-bearing, the fastening round nut of 10-, the 11-rear end cover, 12-oil window, 13-emptying screw, 14-gland, 15-index cam, 16-bearing, 17-are axially adjusted the bolt dish, 18-eccentric adjusting sleeve, 19-screw, the 20-blind flange, 21-eyeglass, 22-screw, 23-screw, the 24-gland, 25-screw, I-index plate, II-index cam.
Accompanying drawing the 1, the 2nd, an embodiment of the present utility model, the index plate of this device circumferentially is evenly equipped with 8 cylindric gear teeth, motion is imported into by index cam axle (15), the revolution of index cam constant speed, the flank profil of index cam (15) and index plate (4) gear tooth profile are in contact points place conjugation, according to the specific interrupted division characteristics of motion, promote index plate (4) and do the intermittent-rotation motion.Index plate and transmission shaft (8) are for the conical surface is connected, and motion realizes the interrupted division motion by transmission shaft (8) output.
Claims (4)
1. an enveloping worm index cam device is made up of index cam, index plate, transmission shaft and casing, it is characterized in that:
Index plate (4) is the overall structure worm gear, is evenly distributed with the gear teeth that several have specific flank profil face on its circumference, and it and index plate transmission shaft (8) adopt cone match, with nut (1O) positioning and locking;
Index cam (15) is cylindric, make one with axle, has the conjugate profiles face that goes out by index plate gear tooth profile bread network on the cylndrical surface, become enveloping worm, in casing (1), enveloping worm and index plate transmission shaft (8) space interlaced arrangement, index cam (15) is contained in the integrated type eccentric adjusting sleeve (18), eccentric adjusting sleeve is contained in the casing (1), is fixed on the casing by screw (22);
Index cam and index plate are no sideshake transmissions, the axial position of index cam is axially adjusted bolt dish (17) by two in the eccentric adjusting sleeve (18) and is adjusted the location, circumferential position is adjusted bolt (3) by two and is adjusted the location, an end of adjusting nut (3) withstands in the groove of eccentric adjusting sleeve (18), the other end is screwed on the casing, with tightening nut (2) locking.
2. enveloping worm index cam device as claimed in claim 1 is characterized in that the gear teeth of specific flank profil face on the index plate circumference can be the cylindric flank profil face gear teeth.
3. enveloping worm index cam device as claimed in claim 1 is characterized in that the gear teeth of specific flank profil face on the index plate circumference can be the involute cylinder flank profil face gear teeth.
4. enveloping worm index cam device as claimed in claim 1 is characterized in that the gear teeth of specific flank profil face on the index plate circumference can be the plane flank profil face gear teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232871 CN2258935Y (en) | 1995-11-29 | 1995-11-29 | Envelope worm index cam gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232871 CN2258935Y (en) | 1995-11-29 | 1995-11-29 | Envelope worm index cam gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2258935Y true CN2258935Y (en) | 1997-08-06 |
Family
ID=33877131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95232871 Expired - Fee Related CN2258935Y (en) | 1995-11-29 | 1995-11-29 | Envelope worm index cam gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2258935Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292962C (en) * | 2004-07-08 | 2007-01-03 | 西安交通大学 | One division cam mechanism with cambered surface |
| CN100335819C (en) * | 2004-05-12 | 2007-09-05 | 安徽工业大学 | Symmetrical inside engaged parallel indexing cam apparatus |
| CN101311606B (en) * | 2007-05-23 | 2010-05-19 | 天津市亚安科技电子有限公司 | Fixed device for platform-worm screw |
| CN105134930A (en) * | 2015-09-29 | 2015-12-09 | 天津百利机械装备集团有限公司中央研究院 | Intermittent movement generator |
| CN113580008A (en) * | 2021-08-20 | 2021-11-02 | 上海新钐机床有限公司 | Reciprocating motion device and grinding wheel frame comprising same |
| CN115140374A (en) * | 2022-07-13 | 2022-10-04 | 吉安职业技术学院 | Cambered surface indexing cam mechanism for packaging mechanism |
-
1995
- 1995-11-29 CN CN 95232871 patent/CN2258935Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335819C (en) * | 2004-05-12 | 2007-09-05 | 安徽工业大学 | Symmetrical inside engaged parallel indexing cam apparatus |
| CN1292962C (en) * | 2004-07-08 | 2007-01-03 | 西安交通大学 | One division cam mechanism with cambered surface |
| CN101311606B (en) * | 2007-05-23 | 2010-05-19 | 天津市亚安科技电子有限公司 | Fixed device for platform-worm screw |
| CN105134930A (en) * | 2015-09-29 | 2015-12-09 | 天津百利机械装备集团有限公司中央研究院 | Intermittent movement generator |
| CN113580008A (en) * | 2021-08-20 | 2021-11-02 | 上海新钐机床有限公司 | Reciprocating motion device and grinding wheel frame comprising same |
| CN115140374A (en) * | 2022-07-13 | 2022-10-04 | 吉安职业技术学院 | Cambered surface indexing cam mechanism for packaging mechanism |
| CN115140374B (en) * | 2022-07-13 | 2023-08-15 | 吉安职业技术学院 | Cambered surface indexing cam mechanism for packaging mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |