CN205363427U - Cam carousel mechanism - Google Patents
Cam carousel mechanism Download PDFInfo
- Publication number
- CN205363427U CN205363427U CN201521019005.5U CN201521019005U CN205363427U CN 205363427 U CN205363427 U CN 205363427U CN 201521019005 U CN201521019005 U CN 201521019005U CN 205363427 U CN205363427 U CN 205363427U
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- China
- Prior art keywords
- cam
- drive ball
- carousel
- worm
- groove
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Abstract
The utility model provides a cam carousel mechanism, a serial communication port, including cam worm (5) and carousel (6), carousel (6) are outer to have drive ball (7) along last evenly distributed, cam worm (5) are outer to have cam groove (8) along last evenly distributed, cam groove (8) profile with drive ball (7) outline agrees with. The beneficial effects of the utility model are that: adopted the worm gear pivoting principle, special worm flute profile can guarantee that drive ball keeps in close contact with at any time, because drive ball is sliding and roll hocket in the groove, so there is very long life, the steel ball is spherical surface contact with the carousel, and stability is good just wear -resisting, and it is very convenient to change in addition, adopts the worm gear principle, can keep the auto -lock in any position during the driving spindle transfixion, has improved the accurate and stable of indexing mechanism.
Description
Technical field
The present invention relates to mechanical field, particularly relate to a kind of cam turntable mechanism.
Background technology
Geneva mechanism is the periodic intermittent motion uniform motion of driving shaft being converted to driven shaft, is usually used in indexing mechanism, is used mostly this mechanism in tradition tool magazine.
It is illustrated in figure 1 prior art Geneva mechanism structure chart, including driving crank 1, sheave body 2, pulling axis 11, lock plate 12 and finger 13, described driving crank 1 axis of rotation is parallel with described sheave body 2 axis of rotation, described driving crank 1 includes pulling axis 11, lock plate 12 and finger 13, described sheave body 2 outer is evenly distributed with the elongated slot 21 agreed with described pulling axis 13 phase, is provided with, in the middle of adjacent two described elongated slots 21, the arcuate groove 22 agreed with described lock plate 12 phase；The axis of rotation of described lock plate 12 overlaps with described driving crank 1.Driving crank axis of rotation is parallel with sheave axis of rotation, does constant speed revolution, when the finger on driving crank enters in groove, just stirs sheave and do reversed rotation campaign, and when finger is deviate from from groove, sheave and transfixion are also positioned by lock plate.
Although this mechanism can realize the intermittent movement of sheave, but require the coordinating of finger and groove significantly high, gap easily causes too greatly during sheave runs and produces vibration, easily there is interference and collision when passing in and out notch in finger, so the rotating accuracy of driving crank is required higher, owing to finger and groove are point-like contacts, it is impossible to stable to rest on a position motionless, so could must be fixed by sheave by lock plate.
Summary of the invention
For overcoming Geneva mechanism in prior art to there is the problem transmitting instability of power, the invention provides a kind of cam turntable mechanism, concrete technical scheme is as follows:
A kind of cam turntable mechanism, it is characterised in that include cam worm screw and rotating disk, described rotating disk outer is evenly distributed with drive ball, described cam worm screw outer is evenly distributed with cam path, and described cam groove profile and described drive ball outline agree with.
Further, the distance between adjacent two described cam paths with the camber line of said two drive ball apart from equal.
Further, the gyroaxis of described cam worm screw is with described rotating disk at grade.
The present invention also provides for a kind of tool magazine, has above-mentioned cam turntable mechanism.
Worm screw is at the uniform velocity rotated by reductor band action, cam path on cylindrical and calibration ball closely cooperate, its spiral lift is exactly the arc length of two balls, after first ball enters helix, along with cam rotates, steel ball slides along groove until departing from groove, and cam rotates a circle, one steel ball completes a displacement, and namely rotating disk completes a step motion.
Compared with prior art, the invention has the beneficial effects as follows:
Have employed Worm Wheel System principle, special worm screw flute profile may insure that drive ball keeps close contact at any time, owing to drive ball hockets for slip and rolling in groove, so there being very long service life, steel ball and rotating disk are sphere-contact, good stability and wear-resisting, and be very convenient to, adopt worm and gear principle, during drive shaft transfixion, self-locking can be kept in any position, improve the accurate and stable of indexing mechanism.
Accompanying drawing explanation
Fig. 1 is Geneva mechanism structure chart in prior art；
Fig. 2 is the present invention preferably cam turntable mechanism structure figure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
It is the present invention preferably cam turntable mechanism structure figure as shown in Figure 1,, including cam worm screw 5 and rotating disk 6, described rotating disk 6 outer is evenly distributed with drive ball 7, being evenly distributed with cam path 8 on described cam worm screw 5 outer, described cam path 8 profile and described drive ball 7 outline agree with.
Distance between adjacent two described cam paths 8 with the camber line of said two drive ball 7 apart from equal.
The gyroaxis of described cam worm screw 5 is with described rotating disk 6 at grade.
The present embodiment also provides for a kind of tool magazine, has above-mentioned cam turntable mechanism.
Worm screw is at the uniform velocity rotated by reductor band action, cam path on cylindrical and calibration ball closely cooperate, its spiral lift is exactly the arc length of two balls, after first ball enters helix, along with cam rotates, steel ball slides along groove until departing from groove, and cam rotates a circle, one steel ball completes a displacement, and namely rotating disk completes a step motion.
Described above illustrate and describes the preferred embodiments of the present invention, as previously mentioned, it is to be understood that the present invention is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and in invention contemplated scope described herein, can be modified by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change are without departing from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (3)
1. a cam turntable mechanism, it is characterized in that, including cam worm screw (5) and rotating disk (6), described rotating disk (6) outer is evenly distributed with drive ball (7), being evenly distributed with cam path (8) on described cam worm screw (5) outer, described cam path (8) profile and described drive ball (7) outline agree with.
2. cam turntable mechanism as claimed in claim 1 a kind of, it is characterised in that the camber line of the distance between adjacent two described cam paths (8) and two drive ball (7) is apart from equal.
3. a kind of cam turntable mechanism as claimed in claim 2, it is characterised in that the gyroaxis of described cam worm screw (5) is with described rotating disk (6) at grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019005.5U CN205363427U (en) | 2015-12-07 | 2015-12-07 | Cam carousel mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019005.5U CN205363427U (en) | 2015-12-07 | 2015-12-07 | Cam carousel mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205363427U true CN205363427U (en) | 2016-07-06 |
Family
ID=56279257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521019005.5U Expired - Fee Related CN205363427U (en) | 2015-12-07 | 2015-12-07 | Cam carousel mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205363427U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106829345A (en) * | 2016-12-29 | 2017-06-13 | 苏州市职业大学 | A kind of circular conveyer |
| CN110286069A (en) * | 2019-07-26 | 2019-09-27 | 佛山科学技术学院 | A kind of Atmospheric particulates scattering observation device |
-
2015
- 2015-12-07 CN CN201521019005.5U patent/CN205363427U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106829345A (en) * | 2016-12-29 | 2017-06-13 | 苏州市职业大学 | A kind of circular conveyer |
| CN110286069A (en) * | 2019-07-26 | 2019-09-27 | 佛山科学技术学院 | A kind of Atmospheric particulates scattering observation device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20201207 |