CN203818852U - Cam contour line instrument - Google Patents
Cam contour line instrument Download PDFInfo
- Publication number
- CN203818852U CN203818852U CN201320675204.6U CN201320675204U CN203818852U CN 203818852 U CN203818852 U CN 203818852U CN 201320675204 U CN201320675204 U CN 201320675204U CN 203818852 U CN203818852 U CN 203818852U
- Authority
- CN
- China
- Prior art keywords
- base
- contour line
- rule
- cam contour
- swivel becket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The cam contour line instrument belongs to the technical field of a teaching appliance and is formed by a pedestal, a rotating disk, a dividing ruler and a slide block. The cam contour line instrument works in a way that with a known function relation, a distance between a cam contour line to a basic circle is calculated and then a point is positioned; with a reversal method and a point depiction method, the cam contour line is drawn; and the cam contour line instrument, point-positioning and cam contour line drawing can be conveniently achieved for students and teachers.
Description
Technical field
Teaching aid technical field, particularly a kind of cam profile instrument under the utility model.
Technical background
Known, cam is a kind of important mechanical mechanism, at mechanical field, has irreplaceable effect, for the study of cam, is also an emphasis knowledge in mechanics study.Yet existing teaching appliance does not have a kind of instrument that can draw cam profile, thereby help student can remove intuitively to draw cam, cam mechanism is understood in more deep study.Design cam profile instrument for this reason, helped to draw cam.
Summary of the invention
In order to make up existing teaching appliance, can not draw the deficiency of cam profile, the utility model provides a kind of cam profile instrument.By cam, apart from basic circle range formula, utilize reversal process and trace-point method, finally draw out cam profile.
The utility model solves the technical scheme that its technical problem adopts: layout of cam profile instrument has a cup dolly, base is placed on horizontal plane, angled dial is established at the edge of base, the center range place of base is provided with groove, above base, there is T shape platform, platform top view is circular, its center of circle is identical with base, platform is fixed on base by groove, on base, there is swivel becket, swivel becket can be done 360 degree coaxial rotation with respect to base, on swivel becket, there is support can place rule, on rule, there is slide block, slide block is connected with rule slide block, there is described point hole at slide block center.Cam profile instrument can be realized the drafting of two kinds of cam profiles, the drafting to cardiac prominence outline line and eccentric cam profile.We are known, and cam profile, according to distance and the rotational angle functional relation of basic circle, often turns an angle and adopts a point by functional relation, by described point, draws profile.Drafting is to cardiac prominence outline line, before use, first by the center of platform and base center superposition, determine again basic circle, the slide block on rule is adjusted to base radius from platform center, rotating swivel becket certain angle, by rotating this goniometer, calculate cam profile to the distance of basic circle, slide block is moved accordingly to this distance on rule, and this point of record that takes notes with a pencil at place, described point hole, more than repeating, after action, the point of record is connected into round and smooth curve and just draw out cardiac prominence outline line.Draw eccentric cam profile, before use, the eccentric distance that first platform slided on the slideway of base, then repeat to draw the step to cardiac prominence wheel, by described point, realize the drafting of cam profile.
The beneficial effects of the utility model are, it is simple in structure, and precision is higher, can draw out the heart and eccentric cam by reversal process and trace-point method, are applicable to using with teaching.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the schematic diagram of the three-dimension integrally of embodiment of the present utility model.
Fig. 2 is the schematic three dimensional views of the base of embodiment of the present utility model.
Fig. 3 is the schematic three dimensional views of the T-shaped platform of embodiment of the present utility model.
Fig. 4 is the schematic three dimensional views of the swivel becket of embodiment of the present utility model.
Fig. 5 is the schematic three dimensional views of the rule of embodiment of the present utility model.
1. bases in figure, 2.T type platform, 3. swivel becket, 4. rule, 5. slide block.Dish-type scale on 11. bases, 12. base upper boss groups, the groove on 13. bases.21.T type platform plane, 22.T type platform boss, the scale on 23.T type platform boss.31. swivel becket high scales, place the support of rule, the screens on 33. supports on 32. swivel beckets.
The specific embodiment
In Fig. 1, base (1) is placed on horizontal plane, T-shaped platform (2) is fixed on base by the boss group on base, on the slideway that T-shaped platform can form in boss group, slide, swivel becket (3) is placed in the annular groove of base, can rotate around base central shaft, can place rule (4) on the support on swivel becket, on rule, have slide block (5), slide block can slide on rule.
In Fig. 2, the dish-type scale (11) on base can record the angle that swivel becket rotates, and base upper boss group (12) forms slideway, fixed platform, and form and be slidably connected with platform, in the groove on base (13), place swivel becket.
In Fig. 3, T-shaped platform plane (21) is for placing for drawing the blank sheet of paper of cam, and T-shaped platform boss (22) is placed on the slideway on base, and the scale (23) on T-shaped platform boss is for measuring eccentric distance.
In Fig. 4, the precision that improves rotational angle that coordinates of swivel becket high scale (31) and base scale, places the support (32) of rule for placing rule on swivel becket, and the screens on support (33) is for fixing rule.
In Fig. 5, on rule, there is scale, on rule, there are slide block, scale to be used for recording slide block from basic circle distance.
Claims (3)
1. a cam profile instrument, by base, T-shaped platform, swivel becket, rule and slide block, formed, it is characterized in that: in the groove of base, place swivel becket, swivel becket can rotate around base central shaft, T-shaped platform is placed on base and is connected with base sliding, rule is placed on slip ring, has slide block on rule, to slide on rule.
2. cam profile instrument according to claim 1, is characterized in that: on base and swivel becket, all have scale, act on the calibrate effect of slide measure middle reaches identical, in order to improve the precision of rotational angle.
3. cam profile instrument according to claim 1, is characterized in that: in T-shaped platform lower boss, have scale, for adjusting eccentric distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675204.6U CN203818852U (en) | 2013-10-30 | 2013-10-30 | Cam contour line instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675204.6U CN203818852U (en) | 2013-10-30 | 2013-10-30 | Cam contour line instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203818852U true CN203818852U (en) | 2014-09-10 |
Family
ID=51474389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320675204.6U Expired - Fee Related CN203818852U (en) | 2013-10-30 | 2013-10-30 | Cam contour line instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203818852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626829A (en) * | 2014-12-08 | 2015-05-20 | 江西理工大学 | Cam profile line generating instrument and generating method |
| CN108469672A (en) * | 2017-11-13 | 2018-08-31 | 惠安集睿信息科技有限公司 | A kind of microexamination spin stand platform |
-
2013
- 2013-10-30 CN CN201320675204.6U patent/CN203818852U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626829A (en) * | 2014-12-08 | 2015-05-20 | 江西理工大学 | Cam profile line generating instrument and generating method |
| CN104626829B (en) * | 2014-12-08 | 2016-04-27 | 江西理工大学 | A kind of cam profile instrument for generating and generation method |
| CN108469672A (en) * | 2017-11-13 | 2018-08-31 | 惠安集睿信息科技有限公司 | A kind of microexamination spin stand platform |
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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 |
Granted publication date: 20140910 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |